CN203591073U - Wheeled working chair - Google Patents

Abstract

The utility model discloses a wheeled working chair, include: a body; four wheelsets are installed respectively in four corners of body, and each wheelset includes: a hollow cylinder, a spring located in the hollow cylinder, a roller pressed by the spring and having a screw inserted into the body through the spring and the hollow cylinder, and a nut locked to the screw; and four sleeves, are installed on wheel set separately; wherein the hollow cylinder and the sleeve leave the ground in a gliding state; and when a person sits on the body, the hollow cylinder and the sleeve are pressed down until the hollow cylinder and the sleeve are contacted and fixed on the ground and the spring is compressed to completely retract the roller into the hollow cylinder.

Description

wheeled task chair

technical field

The utility model relates to a work chair, in particular to a wheeled work chair which is fixed on the ground when the work chair is stationary and a person sits on it.

Background technique

The wheeled tool cabinets in the prior art have drawers for storing tools, and there is another wheeled tool cabinet with brakes on the rollers to prevent the wheeled tool cabinets from moving, but the user has to bend down to operate the brakes located next to the wheels , causing inconvenience in use.

US Patent No. 2033037 discloses a small wheeled chair, which can be used by workers to sit on it and work, such as trimming flowers and trees in a garden. But it has two disadvantages. First, it does not have a drawer for storing tools, so the tools for pruning flowers and trees must be placed on the ground, which is easy to lose. Second, it has no brakes, so it is easy to slide, especially when working on slopes. , and when the sliding small chair hits people, there is a possibility of hurting people.

Utility model content

The utility model provides a wheeled work chair. The problem to be solved is that the work chair in the prior art cannot be fixed on the ground by applying force downwards, thus causing trouble and inconvenience in use. There is a technical problem of providing a wheeled task chair which has the effect of being fixed to the ground when it is stationary and a person is sitting on it.

In order to solve the above technical problems, the utility model provides a wheeled work chair, comprising: a body; a plurality of drawers, which are slidably accommodated in the body; four wheel sets, respectively installed in the four corners of the body, each The wheel set includes: a hollow cylinder; a spring, which is located in the hollow cylinder; a roller, which is pressed down by the spring and has a screw, which is inserted into the body through the spring and the hollow cylinder; and a nut, which is locked on the on the screw; the wheeled work chair also includes four sleeves, which are respectively installed on the wheel set; wherein in the sliding state, the screw is located at the top of the hollow cylinder, and the hollow cylinder and the sleeve are a certain distance away from the ground; and when When the force applied to the body is greater than a default value, the hollow cylinder and sleeve will press down until they touch the ground, and the spring will be further compressed to fully retract the roller into the hollow cylinder, and the hollow cylinder and sleeve will exert force on the ground to Prevent the wheeled task chair from moving.

Preferably, it also includes a pull rod set and a drawer lock set.

Preferably, wherein the pull bar is set behind the body and includes: a handle; a first slide bar, which extends downward from the handle; a second slide bar, which can accommodate the first slide bar; a third slide bar, which can The second sliding rod is accommodated; a first supporting rod is located on the top surface of the main body; and a second supporting rod is extended downward from the first supporting rod to close to the top of the main body.

Preferably, it also includes multiple sets of slide rails, which are located on both sides of the body, for slidingly storing the drawer in the body; wherein the drawer lock set includes:

a long board fixed behind the body;

A plurality of inverted L-shaped locks, which are used to lock the drawer on the long board;

A hole plate, which is fixed on the bottommost inverted L-shaped lock piece;

A lever, which is located at the bottom of the body and has a pivotable cross bar, one end of which passes through the orifice plate and the other end passes through the hole below the second support rod to insert the action piece at the bottom of the third slide bar;

a fixing part, which is fixed on the back of the body;

and a tension spring, one end of which is fixed to the fixture and the other end is fixed to the crossbar;

Pull up the handle to slide the first slide bar, the second slide bar and the third slide bar out of the first support bar and the second support bar, and the moving part is separated from the other end of the cross bar, thus pulling up one end of the cross bar , and the tension spring pulls up the cross bar to stop against the orifice plate, and the inverted L-shaped lock moves down to the origin to lock the drawer; and presses down the handle so that the first slide bar, the second slide bar and the third slide bar The slide bar slides into the first support bar and the second support bar, and the action piece pushes down the other end of the cross bar to pull up one end of the cross bar, and pushes against the orifice plate to move the inverted L-shaped lock to unlock the drawer.

Compared with the prior art, the beneficial effect of the wheeled work chair of the present invention is that it has the effect of being fixed on the ground when it is stationary and a person sits on it.

Description of drawings

Fig. 1 is the perspective view of the wheeled work chair of the embodiment of the present utility model;

Fig. 2 is a schematic diagram of the structure in which the pull rod in Fig. 1 has been fully pulled up;

Fig. 3 is a schematic structural view of the separated wheel set in Fig. 1;

Figure 4 is an exploded view of the wheel set;

Fig. 5 is a side view and a partial sectional view of Fig. 1;

Figure 5A is an enlarged view of the wheel angle in Figure 5;

Fig. 6 is a schematic diagram of the state after the force is applied in Fig. 5, which shows that when the force is applied on the top surface such as when a person sits on it, the hollow cylinder and the sleeve fall down and lock into contact with the ground to fix the wheeled work chair;

Figure 6A is an enlarged view of the wheel angle in Figure 6;

Fig. 7 is a schematic diagram of the structure in which the drawer in Fig. 1 has been pulled out;

Fig. 8 is an internal view of the wheeled work chair of the embodiment of the present invention;

Fig. 9 is a schematic diagram of the structure in which the pull rod in Fig. 8 has been fully pulled up;

Fig. 10 is an enlarged view of Fig. 8, showing that the pull rod is under pressure to unlock the drawer;

Fig. 11 is a schematic diagram of the structure in which the pull rod in Fig. 10 has been pulled up to lock the drawer;

Fig. 12 is a side view and a partial cross-sectional view of the wheeled work chair of the embodiment of the present invention, showing the detailed structure of the pull rod group; and

Fig. 13 is a schematic diagram of the structure of the pull rod in Fig. 12 having been fully pulled up.

main reference signs

1 wheeled task chair

12 body

14 drawers

141 slide rail

16 sleeve

2 wheels

21 Roller

211 screw

22 springs

23 hollow cylinder

3 tie rod set

31 handle

32 first slider

33 Second slider

34 third slider

341 Action pieces

35 Second support rod

351 holes

36 The first support rod

4 drawer lock sets

41 longboard

411 Inverted L-shaped lock

412 orifice plate

42 leverage

421 cross bar

422 Fulcrum

43 tension spring

44 Fixing parts

Detailed ways

The wheeled work chair of the embodiment of the present utility model will be described in detail below with reference to specific embodiments and accompanying drawings, but this is not intended to limit the present utility model.

Please refer to Figures 1-13, the utility model provides a wheeled work chair 1, the wheeled work chair 1 includes a plurality of drawers 14, a body 12, a pull rod group 3, and four wheel groups 2 are respectively mounted on The four corners of the main body 12 and the four sleeves 16 are respectively installed on the four corners of the main body 12 .

The wheel set 2 includes a hollow cylinder 23 which has an open bottom end, a spring 22 (such as a tension spring) located in the hollow cylinder 23, a roller 21 which has a threaded screw 211 which passes through the spring 22 and the hollow cylinder 23 Insert the body 12, and a nut 24 is locked on the screw rod 211 and set on the top of the hollow cylinder 23; the sleeve 16 is a cylindrical hollow structure fixed around the hollow cylinder 23, the spring 22 is compressed in the hollow cylinder 23 and has a The bottom end is pressed against the roller 21 upper ends.

In the sliding state, the hollow cylinder 23 and the sleeve 16 are a certain distance away from the ground. When a person sits on the body 12, the hollow cylinder 23 and the sleeve 16 will press down until they touch the ground, and the spring 22 will further compress the roller 21. Fully retracted into the hollow cylinder 23, the hollow cylinder 23 and the sleeve 16 will exert force on the ground to prevent the wheeled work chair 1 from moving; And bounce back to the original position upwards, then the wheeled work chair 1 can slide again.

The tie rod group 3 is arranged on the back of the body 12 and includes a first support rod 36, which is located at the center of the top surface of the body 12, a second support rod 35, which extends downward from the first support rod 36 to close to the top of the body 12, Two brackets 37 are used to fix the top of the second support rod 35 on the back of the body 12, and fix the bottom of the second support rod 35 on the back of the body 12, a handle 31, and a first slide bar 32 from the center of the handle 31 Extending downward, a second slide bar 33 can accommodate the first slide bar 32, a third slide bar 34 can accommodate the second slide bar 33; the third slide bar 34 can be accommodated in the first support bar 36 and the second support bar 36. Among the support rods 35.

The drawer 14 is slidably accommodated in the body 12 through the slide rails 141 on both sides. The drawer lock set 4 includes a long plate 41 fixed on the back of the body 12. Three inverted L-shaped latches 411 are used on the long plate 41. To lock the drawer 14, a hole plate 412 is fixed on the bottommost inverted L-shaped latch 411, a lever 42 is located at the bottom of the body 12 and has a cross bar 421 which is pivotally fixed on the top of the lever 42 through a fulcrum 422. Top, one end of which passes through the orifice 412 and the other end passes through the hole 351 below the second support rod 35 and is inserted into the moving part 341 at the bottom of the third slide rod 34, a fixing part 44 is fixed on the back of the body 12, and a tension spring 43, one end of which is fixed on the fixture 44 and the other end is fixed on the cross bar 421 between the fulcrum 422 and the hole 351.

When locking the drawer 4 (referring to Figures 9, 11 and 13), the user can pull up the handle 32 so that the first, second and third slide bars 32, 33 and 34 are separated from the first and second support bars 36, 35 slides out, and the action piece 341 is separated from the other end of the cross bar 421, thus pulling up one end of the cross bar 421, and the tension spring 43 will pull up the cross bar 421 to stop against the orifice plate 412, and the locking member 411 moves down to the origin to lock the drawer 14.

When unlocking the drawer 4 (see FIGS. 8, 10 and 12), the user can press down the handle 32 to slide the first, second and third slide bars 32, 33 and 34 into the first and second support bars 36, 35 , and the action piece 341 presses down the other end of the cross bar 421 to pull up one end of the cross bar 421 , and presses against the orifice plate 412 to move the locking piece 411 to unlock the drawer 14 .

The setting of the tension spring 43 is beneficial to the unlocking and locking of the drawer lock group 4 .

The above-mentioned embodiments are only to illustrate the principles and beneficial effects of the wheeled work chair of the present invention, and are not intended to limit the main technical features and scope of the present invention. Therefore, modifications and changes to the above-mentioned embodiments by those skilled in the art should also be regarded as falling within the protection scope of the present utility model.

Claims (4)

1. A wheeled work chair, characterized in that, comprising: a body; a plurality of drawers slidably received in the body; Four wheel sets are respectively mounted on the four corners of the body, and each wheel set includes: a hollow cylinder; a spring, which is located in the hollow cylinder; a roller, which is pressed down by the spring and has a screw rod, which passes through the spring and a hollow cylinder inserted into the body; and a nut, which is locked on the screw rod; The wheeled work chair also includes four sleeves, respectively mounted on the wheel set; Wherein in the sliding state, the screw rod is located at the top of the hollow cylinder, and the hollow cylinder and the sleeve are separated from the ground by a certain distance; and When the force applied to the body is greater than a default value, the hollow cylinder and sleeve will press down until they touch the ground, and the spring will be further compressed to completely retract the roller into the hollow cylinder, and the hollow cylinder and sleeve will exert force on the ground to prevent the wheeled task chair from moving. 2. The wheeled work chair according to claim 1, further comprising a pull rod set and a drawer lock set. 3. The wheeled work chair according to claim 2, wherein the pull rod is arranged behind the main body and includes: number one; a first slide bar extending downward from the handle; a second slide bar, which can accommodate the first slide bar; a third slide bar, which can accommodate the second slide bar; a first support rod, which is located on the top surface of the body; and A second support rod extends downward from the first support rod to close to the top of the main body. 4. The wheeled work chair according to claim 3, further comprising multiple sets of slide rails located on both sides of the body for slidingly storing the drawer in the body; wherein the drawer lock set includes: a long board fixed behind the body; A plurality of inverted L-shaped locks, which are used to lock the drawer on the long board; A hole plate, which is fixed on the bottommost inverted L-shaped lock piece; A lever, which is located at the bottom of the body and has a pivotable cross bar, one end of which passes through the orifice plate and the other end passes through the hole below the second support rod to insert the action piece at the bottom of the third slide bar; a fixing member, which is fixed on the rear of the body; and A tension spring, one end of which is fixed to the fixture and the other end is fixed to the cross bar; Pull up the handle to slide the first slide bar, the second slide bar and the third slide bar out from the first support bar and the second support bar, and the moving part is separated from the other end of the cross bar, thus pulling up one end of the cross bar , and the tension spring pulls up the cross bar to stop against the orifice plate, and the inverted L-shaped lock moves down to the origin to lock the drawer; and presses down the handle to move the first slide bar, the second slide bar and the third slide bar The slide bar slides into the first support bar and the second support bar, and the action piece pushes down the other end of the cross bar to pull up one end of the cross bar, and pushes against the orifice plate to move the inverted L-shaped lock to unlock the drawer.

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