CN106737863A - A kind of lifting handrail with bascule - Google Patents

Abstract

The invention discloses a lifting handrail with a balance device, which comprises: a column on which a driving device is installed; it is arranged on the column and is driven by the driving device to perform linear reciprocating motion along the height direction of the column and a balance device mounted on the column and linked with the drive device; wherein, the balance device includes linear slide rails and sliding rails mounted on the column and located on the left and right sides of the drive device The slider arranged on the linear slide rail; the armrest unit is provided with a column adapter sleeve, and the armrest unit is sleeved on the column through the column adapter sleeve. The invention has the advantages of simple structure, stable and reliable transmission, and high transmission positioning precision.

Description

Lifting handrail with balance device

Technical field:

The invention relates to the technical field of handrails, in particular to a lifting handrail with better balance performance.

Background technique:

Generally, in the human-computer interaction, it is necessary to consider the comfortable position of the user's elbow to facilitate the human-computer interaction. In view of the different body shapes of users, people have developed armrests that can be adjusted in height. The defect of this type of handrail is: in the process of use, if the load on the handrail is inconsistent from left to right, the handrail will easily swing left and right, and the effect of smooth transmission cannot be achieved.

Invention content:

The purpose of the present invention is to provide a lifting handrail with a balance device, which has the advantages of simple structure, stable and reliable transmission, and high transmission positioning accuracy.

The technical solutions of the present invention are as follows: a lifting handrail with a balance device, comprising: a column on which a driving device is installed; arranged on the column and driven by the driving device along the height direction of the column An armrest unit that reciprocates in a straight line; and a balance device mounted on the column and linked with the drive device; wherein, the balance device includes straight lines installed on the column and located on the left and right sides of the drive device The slide rail and the slide block slidingly arranged on the linear slide rail; the armrest unit is provided with a column adapter sleeve, and the armrest unit is sleeved on the column through the column adapter sleeve.

As a preference of the above technical solution, the cross-section of the column is "U"-shaped; the column is provided with a first column connector and a second column connector for connecting two sides of the column.

As a preference of the above technical solution, the driving device includes an upper bracket installed in the U-shaped accommodation space of the column, an upper bracket installed in the U-shaped accommodation space of the column and located directly below the upper bracket. The lower bracket, a ball screw that is rotatably arranged on the upper bracket and the lower bracket, a screw nut screwed on the ball screw, and a screw that is fixedly connected with the screw nut A connecting plate, a motor installed in the U-shaped accommodation space of the column for driving the ball screw to rotate; wherein, the motor is connected to the ball screw through a coupling; the screw nut is passed through The nut adapter seat is fixedly connected with the lead screw connection plate, and the lead screw connection plate is fixedly connected with the column transfer sleeve.

As a preference of the above technical solution, the upper bracket is arranged at the same height as the first column connecting piece; the lower bracket is arranged at the same height as the second column connecting piece.

As a preference of the above technical solution, the linear slide rail is installed in the U-shaped accommodation space of the column, and arranged symmetrically side by side on both sides of the ball screw; the slider and the connecting plate of the screw Fixed connection.

As a preference of the above technical solution, photoelectric sensors are respectively installed at the upper and lower ends of the linear slide rail, and metal sheets inductive to the photoelectric sensors are respectively installed at the upper and lower ends of the lead screw connecting plate.

As a preference of the above technical solution, mechanical limit rods for limiting the movement stroke of the driving device are respectively installed on the first column connector and the second column connector.

The beneficial effects of the present invention are:

1) Use the motor to drive the ball screw to drive the up and down adjustment of the armrest, which can be applied to users of various shapes and has good use effect; and the armrest unit is installed on both sides of the ball screw during the lifting process. Linear guide rail, so that the armrest unit can move up and down smoothly, effectively avoiding the deflection problem of the armrest unit due to inconsistent force, the transmission is stable and reliable, and the transmission positioning accuracy is high;

2) By installing photoelectric sensors at the upper and lower ends of the linear slide rail, and installing metal sheets inductive with the photoelectric sensors at the upper and lower ends of the lead screw connecting plate, the limit of the movement stroke of the driving device is realized, so that the armrest unit moves in a safe manner. within the scope;

3) The first column connector and the second column connector are arranged on the column, and mechanical limit rods are installed on the first column connector and the second column connector. In the case of damage to the photoelectric sensor, through the mechanical limit The rod is used to limit the movement stroke of the driving device, so that the movement of the armrest unit is within a safe range, and the safety is high;

4) The cross section of the column is U-shaped, and the driving device and balance device are installed in the U-shaped accommodation space of the column, with a compact structure.

Description of drawings:

The following drawings are only intended to illustrate and explain the present invention schematically, and do not limit the scope of the present invention. in:

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is the structural representation of driving device and balancing device of the present invention;

Fig. 3 is the sectional structure schematic diagram of driving device of the present invention;

Fig. 4 is the cross-sectional structure schematic diagram of the balancing device of the present invention;

Fig. 5 is a schematic structural view of the armrest unit of the present invention.

In the figure, 10, column; 11, first column connector; 12, second column connector; 20, driving device; 21, upper bracket; 22, lower bracket; 23, ball screw; 24, lead screw nut; 25. Nut adapter seat; 26. Bearing; 27. Coupling; 28. Motor; 281. Flange mounting seat; 29. Lead screw connecting plate; 30. Handrail unit; 31. Column adapter sleeve; 32. Left Handrail; 33, right handrail; 34, handrail connector; 35, handrail rib; 40, balance device; 41, linear slide rail; 42, slider; 43, photoelectric sensor; 44, metal sheet; 50, mechanical limit pole.

detailed description:

Examples: The following specific examples illustrate the implementation of the present invention, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The descriptions of "up", "down", "top" and "bottom" mentioned in this embodiment are defined according to the usual meaning, for example, referring to the definition of the direction of gravity, the direction of gravity is below, and the opposite direction is the top, similarly above is the top or the top, and below is the bottom or the bottom, which is only for the convenience of description, and is not used to limit the scope of the present invention. The change or adjustment of its relative relationship is in Without substantive changes in the technical content, it should also be regarded as the scope of the present invention that can be implemented.

As shown in FIG. 1 , a lifting handrail with a balance device includes: a column 10 on which a driving device 20 is installed; The armrest unit 30 is linearly reciprocating in the height direction; and the balance device 40 is installed on the column 10 and linked with the driving device 20 . As shown in FIG. 1 , the cross-section of the column 10 is U-shaped; the column 10 is provided with a first column connector 11 and a second column connector 12 for connecting two sides of the column 10 . The first column connector 11 and the second column connector 12 can play a role in enhancing the rigidity of the column 10; the top of the first column connector 11 and the second column connector 12 A third column connector, a fourth column connector, etc. can also be provided below, and the number of column connectors depends on actual usage conditions. The driving device 20 and the balancing device 40 are installed in the U-shaped accommodating space of the column 10, and the structure is relatively compact.

2 and 3, the driving device 20 includes an upper bracket 21 installed in the U-shaped accommodation space of the column 10, an upper bracket 21 installed in the U-shaped accommodation space of the column 10 and located The lower bracket 22 directly below the upper bracket 21, a ball screw 23 rotatably arranged on the upper bracket 21 and the lower bracket 22, and a screw nut 24 screwed on the ball screw 23 , a lead screw connection plate 29 fixedly connected with the lead screw nut 24, a motor 28 installed in the U-shaped accommodation space of the column 10 for driving the ball screw 23 to rotate; wherein, the motor 28 is connected to the ball screw 23 through a coupling 27; the screw nut 24 is fixedly connected to the screw connection plate 29 through a nut adapter seat 25, and the screw connection plate 29 is connected to the column Socket 31 is fixedly connected. In this embodiment, the two ends of the ball screw 23 are provided with bearings 26, which are arranged on the upper bracket 21 and the lower bracket 22 through the bearings 26; Installed on the column 10, the motor 28 is a motor with a reducer; the upper bracket 21 is set at the same height as the first column connector 11; the lower bracket 22 is connected to the second column connector 12 contour settings.

As shown in FIGS. 2 and 4 , the balancing device 40 includes linear slide rails 41 installed on the column 10 and located on the left and right sides of the driving device 20 and sliding slides arranged on the linear slide rails 41 . Block 42. Specifically, the linear slide rail 41 is installed in the U-shaped accommodation space of the column 10, and is symmetrically arranged on both sides of the ball screw 23 side by side; the slider 42 and the screw connecting plate 29 fixed connections. The upper and lower ends of the linear slide rail 41 are respectively equipped with photoelectric sensors 43 , and the upper and lower ends of the screw connecting plate 29 are respectively installed with metal sheets 44 that are inductive to the photoelectric sensors 43 . The arrangement of the photoelectric sensor 43 and the metal sheet 44 can realize the limitation of the movement stroke of the driving device 20, so that the movement of the armrest unit 30 is within a safe range. In this embodiment, the number of the linear guide rails 41 is 2, one of the linear guide rails 41 is placed on each side of the ball screw 23 , and each of the linear guide rails 41 is provided with two sliders 42 .

As shown in FIG. 5 , the armrest unit 30 is provided with a column adapter sleeve 31 , and the armrest unit 30 is sleeved on the column 10 through the column adapter sleeve 31 . The armrest unit 30 also includes a left armrest 32, a right armrest 33 and an armrest connector 34, and the ends of the left armrest 32 and the right armrest 33 pass through the armrest connector 34 and the column respectively Socket 31 is connected. Wherein, one end of the left armrest 32 connected with the column adapter sleeve 31 is fixedly provided with a left armrest connecting plate 321; the end of the right armrest 33 connected with the column adapter sleeve 31 is fixedly provided with a right armrest connecting plate 331; armrest ribs 35 are welded between the left armrest 32 and the left armrest connecting plate 321 and between the right armrest 33 and the right armrest connecting plate 331, and the armrest ribs 35 can effectively strengthen all The rigidity of the handrail unit 30 is described above, and the structure is stable and reliable. During installation, firstly weld the left handrail 32, the left handrail connecting plate 321 and the armrest rib 35 into one, and then weld the right handrail 33, the right handrail connecting plate 331 and the armrest rib 35 are welded into one; then, the above two parts are spliced into one through the column adapter sleeve 31 and the handrail connector 34.

As shown in FIG. 1 , the first column connector 11 and the second column connector 12 are respectively equipped with a mechanical limit rod 50 for limiting the movement stroke of the driving device 20 , and when the photoelectric sensor 43 is damaged In the case of the above, the movement stroke of the driving device 20 is limited by the mechanical limit rod 50, so that the movement of the armrest unit 30 is within a safe range, and the safety is high. The mechanical limit rod 50 on the first column connector 11 is installed at the center of the bottom of the first column connector 11, and the mechanical limit rod 50 on the second column connector 12 is installed on The top center of the second column connector 12 .

Working principle: the motor 28 drives the ball screw 23 to rotate, the armrest unit 30 rises or falls driven by the screw nut 24, and the linear guides 41 on both sides of the ball screw 23 can Make the armrest unit 30 move smoothly, avoid the yaw problem of the armrest unit 30 due to inconsistent force, the transmission is stable and reliable, and the transmission positioning accuracy is high. When the metal sheet 44 is detected by the photoelectric sensor 43 , the armrest unit 30 stops moving. In this embodiment, if the photoelectric sensor 43 is damaged, it can also be limited by the mechanical limit rod 50 , which effectively ensures the safety and reliability of the movement of the armrest unit 30 .

The examples are used to illustrate the present invention, but not to limit the present invention. Any person skilled in the art can modify the embodiments without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be listed in the claims of the present invention.

Claims (7)

1. a kind of lifting handrail with bascule, it is characterised in that including：

Column (10), is provided with drive device (20) thereon；

It is arranged on the short transverse of column (10) described in the driving lower edge on the column (10) and in the drive device (20) Make the armrest unit (30) of straight reciprocating motion；And

The bascule (40) linked on the column (10) and with the drive device (20)；

Wherein, the bascule (40) is including on the column (10) and positioned at the drive device (20) left and right two The line slide rail (41) of side and the sliding block (42) being slidably arranged on the line slide rail (41)；Set on the armrest unit (30) A column reducing sleeve (31) is equipped with, the armrest unit (30) is set in the column (10) by the column reducing sleeve (31) On.

2. the lifting handrail with bascule according to claim 1, it is characterised in that：The column (10) it is transversal Face is in "U" shaped；The first column connecting piece for connecting the side of the column (10) two is provided with the column (10) And the second column connecting piece (12) (11).

3. the lifting handrail with bascule according to claim 2, it is characterised in that：Drive device (20) bag Include one be arranged on the column (10) U-shaped accommodation space in upper bracket (21), one be arranged on the column (10) U-shaped appearance It is empty interior and lower carriage (22) immediately below the upper bracket (21), one is rotatably provided in the upper bracket (21) and institute State the ball-screw (23) on lower carriage (22), a feed screw nut (24) being screwed onto on the ball-screw (23), one and institute State the connected leading screw connecting plate (29) of feed screw nut (24), in the U-shaped accommodation space of the column (10) for driving The motor (28) of ball-screw (23) rotation；Wherein, the motor (28) is by shaft coupling (27) and the ball-screw (23) connect；The feed screw nut (24) is connected by nut adapter (25) with the leading screw connecting plate (29), the leading screw Connecting plate (29) is connected with the column reducing sleeve (31).

4. the lifting handrail with bascule according to claim 3, it is characterised in that：The upper bracket (21) and institute State the high settings such as the first column connecting piece (11)；The high settings such as the lower carriage (22) and second column connecting piece (12).

5. the lifting handrail with bascule according to claim 3, it is characterised in that：Line slide rail (41) peace In the U-shaped accommodation space of the column (10), and symmetrically arranged side by side is in the both sides of the ball-screw (23)；The cunning Block (42) is connected with the leading screw connecting plate (29).

6. the lifting handrail with bascule according to claim 5, it is characterised in that：The line slide rail (41) Upper/lower terminal is separately installed with photoelectric sensor (43), and the upper/lower terminal of the leading screw connecting plate (29) is separately installed with and institute State the sheet metal (44) that photoelectric sensor (43) mutually senses.

7. the lifting handrail with bascule according to claim 2, it is characterised in that：First column connecting piece (11) and on second column connecting piece (12) it is separately installed with the machine for limiting the drive device (20) movement travel Tool gag lever post (50).