CN111956462A - Welding-free walking-aid vehicle - Google Patents

Abstract

The invention provides a welding-free rollator, which is characterized in that the frame adopts a stainless steel straight pipe and a stainless steel frame upper fixing assembly (1), a frame front wheel fixing assembly (3), and a frame rear wheel fixing assembly (4) Combined into a triangular frame, the middle frame fixing assembly (2) on both sides and the frame front wheel fixing assembly (3) are connected and fixed by stainless steel transverse tubes, and the seat is fixed on the middle frame fixing assembly ( 2) On the installed transverse connecting pipe, the seat is fixed on the front rod fixing part (102) of the fixing assembly (1) on the frame when the person walks, and the seat is fixed (A) to ensure the maximum walking space. The center uses the elbow support assemblies (6) installed on the frame on both sides to support the body to ensure safe travel. After the seat is rotated and lowered, it is supported by the seat support group (5) in the middle of the frame, and the user uses the seat to rest. There is no welding place in the whole vehicle, so that the processing personnel can be prevented from harming the body by the environment polluted by welding.

Description

Welding Free Roller

technical field

The invention relates to the technical field of a rollator, in particular to a welding-free rollator.

Background technique

Before designing the rollator, I saw with my own eyes that the electric wheelchair support frame driven by an old man was dangerously disconnected due to rust. This is the unavoidable oxidation and corrosion of ordinary steel pipes. I also learned that after heat treatment of aluminum alloy, only the surface Hard layer, poor wear resistance after damage. Based on safety first, stainless steel is selected in production, and its corrosion resistance is safer, but argon arc welding is required in stainless steel processing, which is a welding technology that uses argon gas as a protective gas. Argon arc welding has a great impact on the human body. The most important thing is to burn the human body's respiratory tract, lungs, eyes and other parts, which may cause electro-optic ophthalmia or arc burns. Long-term exposure of welders to high-frequency electromagnetic fields can cause autonomic nerves. Disorder and neurasthenia, manifested as general malaise, dizziness, dreaminess, headache, memory loss, fatigue, loss of appetite, sleep and low blood pressure, resulting in irreversible lesions.

SUMMARY OF THE INVENTION

The purpose of the present invention is to solve the deficiencies of the above-mentioned technologies, and provide a welding-free rollator. The frame adopts a triangular frame, and an elbow arm support arm frame is installed on the two sides of the frame. The weight of the elderly is dispersed on the vehicle. If you are weak, you can use the frame to support you and get a safe and stable travel tool.

In order to achieve the above purpose, a welding-free rollator designed by the present invention is characterized in that: the frame of the welding-free rollator is made of stainless steel straight pipe frame front riser (8) and frame rear riser (9). There is also the following support connecting pipe group (7) and the stainless steel upper frame fixing assembly (1), the frame front wheel fixing assembly (3), and the frame rear wheel fixing assembly (4) combined into a triangular frame , the triangular frame on both sides is connected and fixed with the lower connecting cross pipe (11) of the front wheel fixing assembly (3) through the middle connecting cross pipe (10) of the middle fixing assembly (2), and assembled into a three-sided Roller body; a rotatable seat is installed on the horizontal connecting pipe installed by the fixing assembly (2) in the middle of the frame. When people walk, in order to ensure the walking space, the seat is fixed on the frame of the fixing assembly (1). The front seat pipe fixing part (102) is fixed at the seat (A), and the seat is rotatably fixed on the frame fixing assembly (1) at the seat fixing (A), which is convenient for people to ride from the rear of the car; the elbow support assembly (6) Installed on both sides of the frame.

The fixing assembly (1) on the frame, the upper corner of the triangular frame, the lower two sides are connected with the frame front riser (8) and the frame rear riser (9), and the fixed assembly on the frame. (1) The frame elbow support assembly (6) is installed on it, and the fixing assembly on the frame (1) The parts include the frame fixing part (101), the front riser fixing part (102), the locking piece wrench (103), locking piece (104), rear seat pipe fixing piece (105), seat positioning button (106), seat positioning pin (107).

The frame front wheel fixing assembly (3) is installed at the front lower corner of the triangular frame, and a frame front riser (8) and a lower connecting cross pipe are installed on the frame front wheel fixing assembly (3). (11) It is separated from the support connecting pipe group (7), wherein the mortise lock supporting the mortise lock fixing member (70) is separated from the supporting connecting pipe group (7), and is separated from the frame rear wheel fixing assembly (4); the supporting connecting pipe The group (7) rotates, closes with the front standpipe (8) of the frame, folds the rollator, and the front wheel fixing assembly (3) of the frame includes the frame front wheel fixing part (301), the front frame frame fixing part ( 302), the lower horizontal tube fixing piece (303) of the frame.

The frame rear wheel fixing assembly (4) is installed under the frame rear standpipe (9) behind the triangular frame, and is connected with the support connection pipe group (7) by the mortise lock. When the support mortise lock fixing member ( After the mortise lock of 70) is separated, use the fixing assembly (1) on the frame to install the rear seat pipe fixing part (105) on the triangular frame. Plate (402), Brake (403).

The frame fixing member (101) is in the shape of a stepped circular tube in the center, the center hole of the tube is an insertion hole (1014) for the frame elbow support assembly, and T-shaped fixing rods (1017) are symmetrically arranged on both sides of the stepped tube, There are long elliptical machining holes on the step tube; there are oval blocks on both ends of the T-shaped fixing rod (1017); there are connecting holes (1011) and fixing screw holes (1012) for the rear rod on one end of the oval block of the stair. , used to install the rear riser fixing piece (105); there is a front riser fixing piece connecting hole (1015) on the other side of the platform oval block for installing the front riser fixing piece (102); there is a stepped round tube in the center There are long squares on both sides below, and there are locking set screw holes (1013) on one side of the block; there are long square locking plate fixing holes (1016) on the other side; The long square of the tightening plate fixing hole (1016) and the circular tube where it is located are cut in half to form a locking plate mounting table (1018), which is used to install the locking plate (104).

The frame front wheel fixing member (301) is in the shape of a circular tube front wheel fixing tube (3015) at one end, a dust cover fixing platform (3011) ring groove at the upper end of the circular tube, and a semi-circular tube below one side of the circular tube , There is a rectangular plate under the semi-circular tube, there are screw holes on the rectangular plate, there are semi-circular plates on both sides of the top of the semi-circular tube, there are screw holes on the plate, the bottom of the semi-circular tube is horizontally connected to the pipe groove (3014), in the semi-circular tube There is a lower horizontal connecting tube hole reinforcing rib (3016) between the round tube and the semi-spherical connecting round tube on the half-round tube as the lower fixing tube (3013) of the front rod, the front wheel fixing tube (3015) of the round tube and the lower part of the front rod The angle of the fixing tube (3013) is between 15° and 30°. There is a semi-circular tube on the center side of the lower fixing tube (3013) of the front rod, and the front rod fixing plate (3012) is connected with a long square on both sides. There are screw holes on the long square. , the semicircular tube is the semicircular fixing groove (3017) of the front rod.

The frame rear wheel fixing frame (401) is used to install the rear wheel and the frame rear standpipe (9). There is a rear riser to fix the semi-circular tube (4016), there are four fixed rear riser fixing plates (4011) with round holes on both sides of the semi-circular tube, and there are semi-cylindrical reinforcing ribs (4017) behind the semi-circular tube, which are connected to the semi-cylindrical reinforcement. The rib (4017) has a brake rope fixing plate (4012), the brake rope fixing plate (4012) has screw holes for fixing the brake cable fixing parts, and there is a bent metal sheet on the side of the semi-circular arc piece with brake fixing on it. The hole (4014) is used to install the brake piece (403), and the fixing hole (4015) of the brake spring is used to install the brake return spring.

The brake piece (403) is shaped like a hook and a semi-circular arc brake head (4031), which fits the tread better and reduces the damage to the tire tread. The metal sheet at the front end of the hook has a brake spring hole (4032). There are two mounting holes (4033) for the brake piece with holes on the front upper part, and a CI-shaped boss on the round table at the rear end of the hook for placing the brake rope locking hole (4034) of the hexagonal nut.

The supporting mortise lock fixing member (70) is installed at one end of the supporting connection pipe group (7), and a mortise lock pull button (71), a mortise lock spring (72) and The mortise lock bolt (73) supports the mortise lock fixing member (70) with one end of the mortise lock step connection column (701) followed by a long square, the top end is arc, the middle slotted mortise lock member slot (704), at the top round On one side of the arc, there is a circular tube mortise sleeve (702), the central hole is the mortise shaft hole (703), and the metal sheet on the side of the mortise slot (704) has a through-hole mortise lock hole (704). 705), it is used for mortise lock in the fixing hole B (4023) of the rear connecting pipe.

The advantages of the invention are: the body is supported by the welding-free rollator, so that the user can be prevented from falling and being injured due to the damage of the frame.

The advantages of the invention are that the processing personnel are prevented from being harmed by the welding working environment.

Description of drawings

1, 2, 3, and 4 are schematic diagrams of embodiments of the present invention;

Figures 5, 6, 7, and 8 are explanatory diagrams of the main component groups of the embodiment of the present invention;

Figures 9, 10, 11, 12, 13, and 14 are drawings of the fixing assembly (1) and parts of the vehicle frame according to the embodiment of the present invention;

Figures 15, 16, and 17 are drawings of the middle frame fixing assembly (2) and its parts according to an embodiment of the present invention;

Figures 18, 19, and 20 are illustrations of the front wheel fixing assembly (3) and parts of the frame according to the embodiment of the present invention;

Figures 21, 22, and 23 are illustrations of the rear wheel fixing assembly (4) and parts of the frame according to the embodiment of the present invention;

Figures 24 and 25 are parts diagrams of the support connecting rod group (7) according to the embodiment of the present invention;

Figures 26, 27, 28, and 29 are explanatory diagrams of the parts of the seat support group (5) in the middle of the frame according to the embodiment of the present invention;

Figure 30 is a diagram of a frame elbow support assembly (6) according to an embodiment of the present invention;

Figures 31 and 32 are diagrams of the supporting mortise lock fixing member (70) according to the embodiment of the present invention.

[Description of drawing number comparison]

1—fixing assembly on the frame, 101—frame fixing part, 1011—rear rod connecting hole, 1012—rear rod fixing screw hole, 1013—locking positioning screw hole, 1014—frame elbow support assembly insertion hole , 1015—connecting hole for front riser fixing piece, 1016—fixing hole for locking piece, 1017—T-shaped fixing rod, 1018—fixing piece for locking piece, 102—fixing piece for front riser pipe, 1021—fixing shaft for front pipe, 1022 —Front pipe fixing table, 1023—Seat fixing screw hole, 1024—Front seat pipe fixing piece fixing hole, 1025—Front pipe fitting locking groove, 103—Locking piece wrench, 104—Locking piece, 105—Rear standpipe Fixing parts, 1051—rear pipe fixing rivet, 1052—rear pipe fixing screw hole, 1053—rear pipe fitting locking plate hole, 1054—rear pipe fitting locking groove, 1055—rear pipe fixing sleeve, 106—car seat positioning button, 107 - seat locating bolts;

2—Fixing assembly in the middle of the frame, 201—Horizontal tube pressing plate, 2011—Horizontal tube pressing plate fixing hole, 2012—Horizontal tube fixing semicircular tube plate, 202—Fixing part in the middle of the frame, 2021—Fixing hole in the middle part, 2022—Vertical Semicircular groove, 2023—horizontal semicircular groove, 203—standpipe pressure plate, 2031—standpipe pressure plate fixing screw hole, 2032—standpipe fixed semicircular tube plate;

3—Frame front wheel fixing assembly, 301—Frame front wheel fixing part, 3011—Dust cover fixing platform, 3012—Front rod fixing plate, 3013—Front rod lower fixing pipe, 3014—Lower horizontal connecting pipe groove, 3015—fixing pipe for front wheel, 3016—reinforcing rib for lower horizontal connection pipe hole, 3017—semicircle fixing groove for front rod, 302—fixing part for front frame frame, 3021—semicircle plate for fixing part, 3022—fixing hole for front frame frame, 303—fixing piece of lower horizontal pipe of frame, 3031—fixing plate hole of lower horizontal pipe, 3032—fixing hole A of front and rear connecting pipe, 3033—fixing hole of lower horizontal pipe, 3034—fixing hole of lower horizontal pipe fixing plate;

4—rear wheel fixing assembly of frame, 401—rear wheel fixing frame, 4011—rear seat tube fixing plate, 4012—brake rope fixing plate, 4013—rear wheel fixing hole, 4014—brake fixing hole, 4015—brake Spring fixing hole, 4016—rear riser fixing semicircular pipe, 4017—semi-cylindrical reinforcing rib, 402—rear riser mounting plate, 4021—fixing plate screw hole, 4022—rear riser fixing semicircular groove, 4023—front and rear connection Tube fixing hole B, 403-brake piece, 4031-brake head, 4032-brake spring hole, 4033-brake piece mounting hole, 4034-brake rope locking hole;

5—Seat support group in the middle of the frame, 501—Seat support, 5011—Through hole seat support, 5021—Threaded seat support, 503—Seat round pipe, 5031—Seat fixed tube step column A , 5032—the seat fixing tube step cylinder B, 5033—the seat rotation fixing pipe, 504—the seat fixing positioning piece, 5041—the seat positioning step cylinder A, 5042—the seat positioning step cylinder B, 5043—the locking tube, 5044—Location semicircle pipe;

6—frame elbow support assembly, 601—brake spanner, 602—front support arm, 603—arm cloth, 604—rear support arm, 605—support arm support;

7—Support connecting pipe group, 70—Support mortise lock fixing piece, 71—Mortage lock pull button, 72—Mortage lock spring, 73—Mortage lock bolt, 701—Morte lock piece step connection column, 702—Morte lock piece bushing , 703—the shaft hole of the mortise lock, 704—the slot of the mortise lock, 705—the lock hole of the mortise lock;

8—The front riser of the frame;

9—the rear riser of the frame;

10—connecting the horizontal pipe in the middle;

11—the lower connecting cross pipe;

A—The seat is fixed.

Detailed ways

The following describes in detail the embodiments of the present invention, which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

In this embodiment, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" The orientation or positional relationship indicated by "" etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the referred device or element must have a specific orientation or be constructed in a specific orientation. and operation, and therefore should not be construed as limiting the present invention.

The use method and structure of the present invention will be described below with reference to the accompanying drawings.

As shown in Figure 1, Figure 2, and Figure 3, when using a welding-free rollator, the person stands in the middle of the vehicle, and the two elbows are pressed on the height-adjustable elbow support assembly (6), and the body weight is distributed on the frame , the frame shown in Figure 2 consists of a stainless steel straight tube frame front riser (8) and a frame rear riser (9), as well as the following support connecting pipe group (7) and the stainless steel frame fixing assembly (1). ), the front wheel fixing assembly of the frame (3), and the rear wheel fixing assembly (4) of the frame are combined into a triangular frame, and the triangular frames on both sides are connected to the cross tube ( 10) Connect and fix with the lower connecting cross pipe (11) of the front wheel fixing assembly (3) of the frame, and assemble it into a three-sided rollator body; install it on the cross connecting pipe installed on the fixing assembly (2) in the middle of the frame. The rotating seat, when people walk, in order to ensure the walking space, the seat is fixed on the frame fixing assembly (1) of the front seat pipe fixing part (102) seat fixing (A), the seat is rotatably fixed on the vehicle The fixing assembly (1) on the frame is fixed at the seat (A), which is convenient for people to ride from the back of the car; the elbow support assembly (6) is installed on the frame on both sides. Figures 3 and 4 are the folded rollator. It is convenient for transportation. The parts on the rollator are stainless steel precision castings, so that the welding-free rollator has no welding points.

Figure 5 shows the fixing assembly (1) on the frame, which is located at the upper corner of the triangular frame, and the lower two sides are connected with the front frame (8) and the rear frame (9), on the frame The frame elbow support assembly (6) is installed on the fixing assembly (1), and the fixing assembly (1) on the frame includes frame fixing parts (101), front riser fixing parts (102), locking parts Piece spanner (103), locking piece (104), rear seat pipe fixing piece (105), seat positioning button (106), seat positioning pin (107).

Figure 6 The middle fixing assembly (2) is installed in the middle position of the front seat pipe (8) of the front frame of the triangular frame, and the middle fixing assembly (2) on both sides passes through the fixing middle connecting cross pipe (10), Its parts include a horizontal tube pressing plate (201), a middle fixing part (202) of the frame, and a vertical tube pressing plate (203).

Figure 7 The front wheel fixing assembly (3) of the frame is installed at the front lower corner of the triangular frame. On the front wheel fixing assembly (3) of the frame, the frame front riser (8) and the lower connecting cross pipe are installed (11) It is separated from the support connecting pipe group (7), wherein the mortise lock supporting the mortise lock fixing member (70) is separated from the supporting connecting pipe group (7), and is separated from the frame rear wheel fixing assembly (4); the supporting connecting pipe The group (7) rotates, closes with the front standpipe (8) of the frame, folds the rollator, and the front wheel fixing assembly (3) of the frame includes the frame front wheel fixing part (301), the front frame frame fixing part ( 302), the lower horizontal tube fixing piece (303) of the frame.

Figure 8 shows the frame rear wheel fixing assembly (4), which is installed under the frame rear standpipe (9) behind the triangular frame, and is connected to the support connecting pipe group (7) with a mortise lock. When the support mortise lock fixing part After the mortise lock of (70) is separated, use the fixing assembly (1) on the frame to install the rear seat tube fixing member (105) on the triangular frame, and the parts include the frame rear wheel fixing frame (401), the rear seat tube Mounting plate (402), brake piece (403).

Figures 9 and 10 The fixing assembly (1) on the frame is assembled as follows, the elbow support assembly (6) is inserted into the frame fixing member (101), and locked with the locking piece (104) by the locking piece wrench (103) Tightly fix it; install the front seat tube fixing member (102) and the rear seat tube fixing member (105) on both sides of the frame fixing member (101) respectively; Secure the saddle to the front seat tube mount (102) at the saddle mount (A).

Figure 11 Frame fixing part (101), the shape is a stepped round tube in the center, the center hole of the tube is the insertion hole (1014) of the frame elbow support assembly, and there are T-shaped fixing rods (1017) symmetrically on both sides of the stepped tube, There are long elliptical machining holes on the step tube; there are oval blocks on both ends of the T-shaped fixing rod (1017); there are connecting holes (1011) and fixing screw holes (1012) for the rear rod on one end of the oval block of the stair. , used to install the rear riser fixing piece (105); there is a front riser fixing piece connecting hole (1015) on the other side of the platform oval block for installing the front riser fixing piece (102); there is a stepped round tube in the center There are long squares on both sides below, and there are locking set screw holes (1013) on one side of the block; there are long square locking plate fixing holes (1016) on the other side; The long square of the tightening plate fixing hole (1016) and the circular tube where it is located are cut in half to form a locking plate mounting table (1018), which is used to install the locking plate (104).

Figure 13 The upper end of the front riser fixing member (102) is an elliptical block of the platform, and the front tube fixing shaft (1021) is located in the center of the lower platform front tube fixing platform (1022). There is a long ellipse forming hole, and there is a round pipe at the connection between the round pipe and the ellipse block of the terrace. There is a fixing screw hole (1023) for the seat in the pipe, and there is a front pipe fitting locking groove (1025) at the lower end of the round pipe. There are D-shaped blocks on both sides, and there is a front riser fixing hole (1024) in the center of the D-shaped block.

Figure 14 The shape of the rear riser fixing member (105) is the same as that of the front riser fixing member (102), except that the oval block of the terrace of the rear riser fixing member (105) is longer, and there is a rear oval block on the lower stage of the oval block. Pipe fixing rivet (1051), add a rear pipe fixing screw hole (1052), connect the rear pipe fixing sleeve (1055) under the oval block of the ladder, and there is a rear pipe fitting locking groove (1054) on the side of the rear pipe fixing sleeve (1055) ), there are D-shaped blocks on both sides of the rear pipe fitting locking groove (1054), and there is a rear pipe fitting locking plate hole (1053) in the center of the D-shaped block, and the rear pipe fixing sleeve (1055) is used to insert the rear seat pipe of the frame ( 9), and fix it with screws through the locking plate hole (1053) of the rear pipe. Figures 15 and 16 The horizontal tube pressing plate (201) has the same shape as the vertical tube pressing plate (203), and is connected with rectangular plates on both sides of the semi-circle, respectively, for the horizontal tube fixing the semi-circular tube plate (2012). (2011) Through holes; the standpipe press plate (203) has standpipe fixing semicircular tube plates (2032), and the standpipe press plate fixing screw holes (2031) are provided on the plate.

Figure 17 The fixing part (202) in the middle of the frame is a square block, and there are semicircular grooves on both sides of the square block, vertical semicircular grooves (2022) and horizontal semicircular grooves (2023), and the middle part fixing holes (2021) are at the four corners of the square block. place.

Figure 18 Frame front wheel fixing piece (301), one end is a round tube front wheel fixing tube (3015), there is a dust cover fixing table (3011) ring groove at the upper end of the round tube, and a semi-circular tube below one side of the round tube , There is a rectangular plate under the semi-circular tube, there are screw holes on the rectangular plate, there are semi-circular plates on both sides of the top of the semi-circular tube, there are screw holes on the plate, the bottom of the semi-circular tube is horizontally connected to the pipe groove (3014), in the semi-circular tube There is a lower horizontal connecting tube hole reinforcing rib (3016) between the round tube and the semi-spherical connecting round tube on the half-round tube as the lower fixing tube (3013) of the front rod, the front wheel fixing tube (3015) of the round tube and the lower part of the front rod The angle of the fixing tube (3013) is between 15° and 30°. There is a semi-circular tube on the center side of the lower fixing tube (3013) of the front rod, and the front rod fixing plate (3012) is connected with a long square on both sides. There are screw holes on the long square. , the semicircular tube is the semicircular fixing groove (3017) of the front rod.

Figure 19 The front frame frame fixing member (302) is installed on the front rod fixing plate (3012) of the front wheel fixing member (301) of the frame, and the fixing member semicircular plate (3021) is also designed as a stepped semicircular tube with long sides on both sides Square, long square with front frame mounting holes (3022).

Figure 20 The lower horizontal tube fixing piece (303) of the frame is a horizontal semi-circular tube. There are two semi-circular pieces on the tube. There are lower horizontal tube fixing plate holes (3031) on the semi-circular piece. There is a semi-circular piece on the surface, and there are front and rear connecting tube fixing holes A (3032) in the semi-circular piece, and there is a long square under the semi-circular piece, and there are lower horizontal tube fixing plate fixing holes (3034) on it. The inner pipe of the transverse semicircular pipe is the lower transverse pipe fixing hole (3033), which is used for installing the lower connecting transverse pipe (11).

Figures 21 and 22 The rear wheel fixing frame (401) of the frame is used to install the rear wheel and the rear seat tube (9). There are rear riser fixing semi-circular tubes (4016) on the top of the plate, four fixed rear riser fixing plates (4011) with round holes on both sides of the semi-circular tubes, and semi-cylindrical reinforcing ribs (4017) behind the semi-circular tubes, which are connected to the semi-circular tubes. The cylindrical reinforcing rib (4017) has a brake rope fixing plate (4012), and the brake rope fixing plate (4012) has screw holes for fixing the brake wire fixing parts. The brake fixing hole (4014) is used to install the brake piece (403), and the brake spring fixing hole (4015) is used to install the brake return spring.

Figure 23 The rear standpipe mounting plate (402) is installed at the place where the rear standpipe fixing plate (4011) is fixed to fix the rear standpipe (9) of the frame, and the rear standpipe fixing semicircular groove (4022) in the shape of a semicircular pipe, There are four fixing plate screw holes (4021) on the semicircular tube, and a D-shaped metal sheet on the curved surface of the semicircular tube, with a rear connecting tube fixing hole B (4023).

Figure 24 The shape of the brake piece (403) is like a hook, and the semi-circular arc brake head (4031) is more suitable for the tread to reduce the damage to the tire surface. There are two mounting holes (4033) for the brake piece with holes on the front upper part, and a CI-shaped boss on the round table at the rear end of the hook for placing the brake rope locking hole (4034) of the hexagonal nut.

Figure 25 shows the seat support (501) installed on the rear seat tube (9) of the frame, the threaded seat support (502) is supported, the seat support (5011) with holes is shown in Figure 26, and the same The threaded seat support (502) is assembled as shown in Figure 27. They have the same shape. The center semi-circular arc piece, one side is connected to a semi-cylindrical piece, and the other side is processed into a round head piece. The different through-hole saddle supports (5011) are through holes, and the screw-hole saddle supports (502) are screw holes, which are used to support the saddle after being assembled together.

Figure 28 The seat round pipe (503) The seat rotation fixing pipe (5033) is installed on the middle connecting cross pipe (10), the seat is rotated by the seat rotation fixing pipe (5033), and the round pipe is a right-angled cylinder , The seat fixing tube step cylinder A (5031) and the seat fixing tube step cylinder B (5032) at both ends of the cylinder are used to insert the seat fixing tube.

Figure 29 Seat positioning and fixing part (504), the shape is a semi-circular tube positioning semi-circular tube (5044) is connected to a circular tube locking tube (5043), the locking tube (5043) is connected to a right-angled cylinder, and the two ends of the right-angled cylinder have positioning Step cylinder A (5041) and positioning step cylinder B (5042).

Fig. Frame elbow support assembly (6) is composed of parallel double-tube support arm frame bottom bracket (405), the center is downward cylindrically connected to the support tube, and the two ends of the double tube inserted into the support arm frame bottom bracket (605) are plugged together, The oval-shaped column is bent upwards and in the middle, respectively the front support arm frame (602) and the rear support arm frame (604). into the mounting hole of the arm bracket (602).

Figures 31 and 32 The support mortise lock fixing member (70) is installed on one end of the support connecting pipe group (7), and the mortise lock pull button (71) and the mortise lock spring (72) are installed on the support mortise lock fixing member (70). ), the mortise bolt (73), one end of the supporting mortise lock fixing member (70) is the mortise lock step connecting column (701) followed by a long square, the top is arc, the middle slotted mortise lock slot (704), in On the arc side of the top end, there is a circular tube mortise sleeve (702), the central hole is the mortise shaft hole (703), and there is a through-hole mortise lock on the metal sheet on the side of the mortise slot (704). Hole (705), which is used for mortise locking in the fixing hole B (4023) of the rear connecting pipe.

The detailed description made by the present invention does not limit the present invention. For those skilled in the art, some improvements and modifications can be made to the present invention, and these improvements and modifications also belong to the protection scope of the present invention.

Claims (9)

1. A welding-free rollator, characterized in that: the frame is composed of a stainless steel straight tube frame front riser (8) and a frame rear riser (9), as well as the following support connecting rod group (7) and stainless steel. The upper frame fixing assembly (1), the frame front wheel fixing assembly (3), and the frame rear wheel fixing assembly (4) are combined into a triangular frame, and the triangular frames on both sides are connected by the middle fixing assembly ( 2) The middle connecting cross pipe (10) is connected and fixed with the lower connecting cross pipe (11) of the front wheel fixing assembly (3) of the frame, and is assembled into a three-sided rollator body; the fixing assembly (2) is fixed in the middle of the frame A rotatable seat is installed on the installed horizontal connecting pipe. When people walk, in order to ensure the walking space, the seat is fixed on the frame of the front seat pipe fixing part (102) of the fixing assembly (1) The seat is fixed (A) The seat is rotatably fixed on the frame fixing assembly (1) at the seat fixing (A), which is convenient for people to ride from the back of the car; the elbow support assembly (6) is installed on the frame on both sides. 2. The welding-free rollator according to claim 1, characterized in that: the fixing assembly (1) on the frame, the upper corner of the triangular frame, and the lower two sides are connected to the frame front riser (8) and the rear riser (9) of the frame, the frame elbow support assembly (6) is installed on the frame fixing assembly (1), and the frame fixing assembly (1) has frame fixing parts ( 101), front seat tube fixing piece (102), locking piece wrench (103), locking piece (104), rear seat tube fixing piece (105), seat positioning button (106), seat positioning bolt (107) ). 3. The welding-free rollator according to claim 1, characterized in that: the front wheel fixing assembly (3) of the frame is installed at the front lower corner of the triangular frame, and the front wheel fixing assembly (3) of the frame is installed at the front lower corner of the triangular frame. ), the front standpipe (8), the lower connecting cross pipe (11) and the supporting connecting rod group (7) are installed on the upper part, wherein the mortise lock supporting the mortise lock fixing member (70) is separated by the supporting connecting rod group (7), It is separated from the rear wheel fixing assembly (4) of the frame; the supporting connecting rod group (7) rotates and is close to the front riser (8) of the frame, folds the rollator, and the parts of the front wheel fixing assembly (3) of the frame have a car The frame front wheel fixing member (301), the front frame frame fixing member (302), and the frame lower horizontal tube fixing piece (303). 4. The welding-free rollator according to claim 1, characterized in that: the rear wheel fixing assembly (4) of the frame is installed under the rear riser (9) of the frame behind the triangular frame, and is connected with the support The rod group (7) is connected by a mortise lock. When the mortise lock supporting the mortise lock fixing member (70) is separated, the rear riser fixing member (105) on the frame fixing assembly (1) is used to install it on the triangular frame. The parts include a frame rear wheel fixing frame (401), a rear seat pipe mounting plate (402), and a brake piece (403). 5. The welding-free rollator according to claim 1, characterized in that: the frame fixing member (101) is in the shape of a stepped circular tube in the center, and the center hole of the tube is an insertion hole (1014) for the frame elbow support assembly, There are T-shaped fixing rods (1017) symmetrically on both sides of the step tube, and there are long elliptical machining holes on the step tube; there are terrace oval blocks at both ends of the T-shaped fixing rod (1017); The rear pole connecting hole (1011) and the rear pole fixing screw hole (1012) are used to install the rear riser fixing piece (105); the oval block on the other side has the front riser fixing piece connecting hole (1015) for installing the rear riser fixing piece (1015). Install the front riser fixing part (102); there are long squares on both sides under the stepped round pipe in the center, and there are locking and positioning screw holes (1013) on one side of the block; on the other side, there are long square locking pieces for fixing Hole (1016); Cut off half of the long square and the round tube in the locking set screw hole (1013) and the locking plate fixing hole (1016), which is the locking plate mounting table (1018), which is used to install the locking plate ( 104). 6. The welding-free rollator according to claim 1, characterized in that: the front wheel fixing member (301) of the frame is in the shape of a round tube front wheel fixing tube (3015) at one end, and a dust cover is arranged on the upper end of the round tube Fixed table (3011) ring groove, semi-circular tube under one side of the round tube, rectangular plate under the semi-circular tube, screw holes on the rectangular plate, semi-circular plates on both sides of the top of the semi-circular tube, screw holes on the plate, The semi-circular tube is the lower horizontal connecting pipe groove (3014), and between the semi-circular tube and the circular tube, there is a lower horizontal connecting tube hole reinforcing rib (3016), and on the semi-circular tube there is a semi-circular connecting tube as the lower fixing tube of the front rod ( 3013), the angle between the round tube front wheel fixing tube (3015) and the lower fixing tube (3013) of the front rod is between 15° and 30°, and there is a semi-circular tube on both sides of the center side of the lower fixing tube (3013) of the front rod. The square front rod fixing plate (3012) has screw holes on the long square, and the semicircular tube is the front rod semicircular fixing groove (3017). 7. The welding-free rollator according to claim 1, characterized in that: the rear wheel fixing frame (401) of the frame is used to install the rear wheel and the rear riser (9) of the frame, and it has a semi-circular arc-shaped piece, and the following is a Round hole rear wheel fixing hole (4013), there is a rear riser fixing semicircle tube (4016) on the semi-circular arc-shaped sheet, and there are four fixed rear riser fixing plates (4011) with round holes on both sides of the semicircle tube. There is a semi-cylindrical reinforcing rib (4017) at the back of the tube, and a brake rope fixing plate (4012) is connected to the semi-cylindrical reinforcing rib (4017). There is a bent metal sheet on one side of the semi-circular arc-shaped piece with a brake fixing hole (4014) for installing the brake piece (403), and the brake spring fixing hole (4015) for installing the brake return spring. 8. The welding-free rollator according to claim 1, characterized in that: the brake member (403) is shaped like a hook and a semi-circular arc brake head (4031), which fits the tread better and reduces damage to the tire tread. There are brake spring holes (4032) on the metal plate at the front end of the hook, and two mounting holes (4033) with holes for the metal plate brake parts on the front upper part of the hook, and a CI-shaped boss on the round table at the rear end of the hook for placing six Brake Rope Lock Hole (4034) for Square Nut. 9 . The welding-free walker according to claim 1 , wherein the support mortise lock fixing member ( 70 ) is installed on one end of the support connecting rod group ( 7 ), and is installed on the support mortise lock fixing member ( 70 ). 10 . There is a mortise lock knob (71), a mortise lock spring (72), and a mortise lock bolt (73). One end of the support mortise lock fixing member (70) is a mortise lock step connecting column (701) followed by a long square, and the top end is arc , the middle slotted lock slot (704), on the arc side of the top there is a circular tube lock shaft sleeve (702), the central hole is the lock shaft hole (703), in the lock slot (704) There is a locking hole (705) for a through-hole latch on one side of the metal sheet, which is used for latching in the fixing hole B (4023) of the rear connecting pipe.

Images