CN212950778U - Brake device of hand trolley - Google Patents

Abstract

The utility model relates to a hand push trolley technical field just discloses a hand push trolley's arresting gear, including automobile body and wheel, the wheel sets up in the left side of automobile body, the connecting rod has been cup jointed through antifriction bearing rotation in the inside of wheel, the equal activity in both ends of connecting rod has cup jointed preceding bracing piece, two the upper end of preceding bracing piece all with the left end fixed connection of automobile body, the fixed plate that is provided with in right side of connecting rod, the right side both ends of fixed plate all rotate through the montant and are provided with the auxiliary wheel, the extrusion groove has been seted up to the upper surface of fixed plate, the left side lower surface of automobile body just is located the fixed connecting block that is provided with directly over the extrusion groove, the fixed both sides that are provided with fixture block and fixture block of lower extreme of connecting block have all seted up. The utility model discloses can carry out quick convenient braking, guarantee operating personnel's safety to hand push trolley.

Description

Brake device of hand trolley

Technical Field

The utility model relates to a hand push trolley technical field especially relates to a arresting gear of hand push trolley.

Background

The trolley is one of the most common tools used in the construction industry, especially on the construction site, and mainly functions to transport construction articles such as silt, concrete and bricks by manpower. Most of the existing dump trucks comprise a truck body, wheels and a handle, and the structure is simple.

Traditional hand push hopper car simple structure does not set up arresting gear, is difficult to control speed on the great and unstable road of slope, thereby causes the handcart to slide down fast easily and causes the incident.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem of safety accidents caused by the braking device arranged in the trolley in the prior art, and providing the braking device of the trolley.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a brake device of a hand push trolley comprises a trolley body and wheels, wherein the upper end and the lower end of the right side of the trolley body are respectively fixedly provided with a handrail and a rear supporting rod, the wheels are arranged on the left side of the trolley body, the inside of the wheels is sleeved with a connecting rod through a rolling bearing in a rotating manner, the two ends of the connecting rod are movably sleeved with front supporting rods, the upper ends of the two front supporting rods are fixedly connected with the left end of the trolley body, the right side of the connecting rod is fixedly provided with a fixed plate, the two ends of the right side of the fixed plate are respectively provided with an auxiliary wheel through a vertical rod in a rotating manner, the upper surface of the fixed plate is provided with an extrusion groove, the lower surface of the left side of the trolley body is fixedly provided with a connecting block right above the extrusion groove, the lower end of the connecting block is fixedly provided with a clamping block, the two sides, two the inboard of splint is all fixed and is provided with the brake block, two the outside of splint is the slope setting and all matches with the lateral wall in the extrusion groove that corresponds, the both sides of connecting block set up stop gear

Preferably, stop gear includes two limiting plates and spring, two the limiting plate is fixed to be set up in the both sides of connecting block, two be provided with the slide bar between the limiting plate, the both ends of slide bar all run through corresponding splint and the limiting plate fixed connection who corresponds, the fixed baffle that is provided with in middle part of slide bar, two the equal activity of spring is cup jointed in a side pole wall and both ends of corresponding slide bar respectively with corresponding baffle and splint fixed connection.

Preferably, the both sides of wheel all are provided with a plurality of lugs, two the draw-in groove has all been seted up to the rear side of brake block, and is a plurality of the lug all with the draw-in groove phase-match that corresponds.

Preferably, the springs on both sides are compression springs.

Preferably, a pressure lever is fixedly arranged in the middle of the right side of the fixing plate.

Preferably, the brake block is made of asbestos.

Compared with the prior art, the utility model provides a hand push trolley's arresting gear possesses following beneficial effect:

1. this hand push trolley's arresting gear holds up through loosening and can make automobile body rear side direction decline to make two splint get into the inside in extrusion groove, the extrusion groove extrudees two splint to the middle part, thereby realizes the tight braking of quick clamp of two brake pads to the wheel.

2. This hand push hopper car's arresting gear through stepping on the clamp plate, then lifts up the automobile body rear side for two splint leave from the extrusion groove, move to both sides under the elastic force effect of two springs, thereby realize relieving the braking fast.

The part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, the utility model discloses can carry out quick convenient braking to hand push trolley, guarantee operating personnel's safety.

Drawings

Fig. 1 is a schematic structural view of a braking device of a hand trolley according to the present invention;

FIG. 2 is a schematic view of the internal structure of FIG. 1;

FIG. 3 is a side view of the structure of FIG. 1;

fig. 4 is an enlarged view of a portion a of fig. 3.

In the figure: the device comprises a vehicle body 1, a rear supporting rod 2, a handrail 3, a front supporting rod 4, a connecting rod 5, wheels 6, a fixing plate 7, a vertical rod 8, an auxiliary wheel 9, a connecting block 10, a clamping plate 11, a baffle 12, a sliding rod 13, a limiting block 14, a sliding block 15, a brake block 16, a pressing rod 17, a partition plate 18, a spring 19 and a convex block 20.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-4, a brake device of a hand trolley, comprising a trolley body 1 and wheels 6, wherein the upper and lower ends of the right side of the trolley body 1 are respectively and fixedly provided with a handrail 3 and a rear support rod 2, the wheels 6 are arranged on the left side of the trolley body 1, the inside of the wheels 6 is rotatably sleeved with a connecting rod 5 through a rolling bearing, the two ends of the connecting rod 5 are movably sleeved with front support rods 4, the upper ends of the two front support rods 4 are fixedly connected with the left end of the trolley body 1, the right side of the connecting rod 5 is fixedly provided with a fixing plate 7, the two ends of the right side of the fixing plate 7 are rotatably provided with auxiliary wheels 9 through vertical rods 8, the upper surface of the fixing plate 7 is provided with an extrusion groove, the lower surface of the left side of the trolley body 1 is fixedly provided with a connecting block 10 positioned right above the extrusion groove, the lower end, the both sides of two splint 11 all are through slider 15 and the spout sliding connection that corresponds, and the inboard of two splint 11 is all fixed and is provided with brake block 16, and the outside of two splint 11 is the slope setting and all matches with the lateral wall phase-match in the extrusion groove that corresponds, and the both sides of connecting block 10 set up stop gear.

The limiting mechanism comprises two limiting plates 12 and springs 19, the two limiting plates 12 are fixedly arranged on two sides of the connecting block 10, a sliding rod 13 is arranged between the two limiting plates 12, two ends of the sliding rod 13 penetrate through the corresponding clamping plates 11 and the corresponding limiting plates 12 and are fixedly connected, a partition plate 18 is fixedly arranged in the middle of the sliding rod 13, and the two springs 19 are movably sleeved on one side rod wall of the corresponding sliding rod 13 and two ends of the corresponding sliding rod 13 and are fixedly connected with the corresponding partition plate 18 and the corresponding clamping plates 11 respectively.

The both sides of wheel 6 all are provided with a plurality of lugs 20, and the draw-in groove has all been seted up to the rear side of two brake pads 16, and a plurality of lugs 20 all match with the draw-in groove that corresponds.

Both side springs 19 are compression springs, and both springs 19 push the corresponding clamp plate 11 outward in a natural state.

The middle part of the right side of the fixed plate 7 is fixedly provided with a pressure lever 17, so that the fixed plate 7 can be fixed when the rear side of the vehicle body is lifted.

The brake pad 16 is made of asbestos, so that the brake pad 16 is more wear-resistant.

In the utility model, when in use, the working personnel step on the pressing plate 17 with the foot, then mention the handrail 3 upwards, mention the in-process, the connecting block 10 drives two splint 11 to leave from the extrusion groove at the middle part of the fixed plate 7, under the elastic action of two springs 19, two splint 11 are pushed to both sides, at this moment, the wheel 6 can rotate, can push the automobile body 1 to go forward, when driving on the road with large gradient and instability, the speed is difficult to control, when the speed is too fast, the handrail 3 is pushed downwards, in the process of pushing down, the splint 11 enters the extrusion groove, the extrusion groove pushes the two splint 11 towards the middle, make two song brake pads 16 offset with the both sides of the wheel 6, thereby play the braking action, the wheel 6 can also roll forwards under the inertia action, a plurality of lugs 20 arranged on the wheel 6 at this moment enter the clamping groove at the rear side of the brake pad 16, stop the wheel 6 from continuing to rotate, thereby allowing the vehicle body 1 to be quickly and smoothly braked.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. The brake device of the hand push trolley comprises a trolley body (1) and wheels (6), and is characterized in that an armrest (3) and a rear supporting rod (2) are fixedly arranged at the upper end and the lower end of the right side of the trolley body (1) respectively, the wheels (6) are arranged on the left side of the trolley body (1), a connecting rod (5) is rotatably sleeved in the wheels (6) through a rolling bearing, a front supporting rod (4) is movably sleeved at the two ends of the connecting rod (5), the upper ends of the two front supporting rods (4) are fixedly connected with the left end of the trolley body (1), a fixing plate (7) is fixedly arranged on the right side of the connecting rod (5), auxiliary wheels (9) are rotatably arranged at the two ends of the right side of the fixing plate (7) through vertical rods (8), an extrusion groove is formed in the upper surface of the fixing plate (7), a connecting block (10) is fixedly arranged on the lower surface of the left side of the, the fixed both sides that are provided with fixture block (14) and fixture block (14) of lower extreme of connecting block (10) have all seted up the spout, two the both sides of fixture block (14) all are provided with splint (11), two the both sides of splint (11) are all through slider (15) and the spout sliding connection that corresponds, two the inboard of splint (11) is all fixed and is provided with brake block (16), two the outside of splint (11) is the slope setting and all with the lateral wall phase-match in the extrusion groove that corresponds, the both sides of connecting block (10) set up stop gear.

2. The braking device of a trolley according to claim 1, wherein the limiting mechanism includes two limiting plates (12) and two springs (19), two limiting plates (12) are fixedly disposed on two sides of the connecting block (10), a sliding rod (13) is disposed between the two limiting plates (12), two ends of the sliding rod (13) penetrate through the corresponding clamping plate (11) and are fixedly connected with the corresponding limiting plate (12), a partition plate (18) is fixedly disposed in the middle of the sliding rod (13), and two springs (19) are movably sleeved on a side rod wall of the corresponding sliding rod (13) and are respectively and fixedly connected with the corresponding partition plate (18) and the corresponding clamping plate (11).

3. The trolley brake device according to claim 1, wherein the wheels (6) are provided with a plurality of protrusions (20) on both sides, the brake pads (16) are provided with slots on the rear sides, and the protrusions (20) are matched with the corresponding slots.

4. A braking device for a trolley according to claim 2, characterised in that the springs (19) on both sides are compression springs.

5. The trolley brake system according to claim 1, wherein the right middle portion of the fixed plate (7) is fixedly provided with a pressure lever (17).

6. Brake device according to claim 1, characterised in that the brake lining (16) is made of asbestos.

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