CN219156452U

CN219156452U - General-purpose type length-adjustable overhauling bracket

Info

Publication number: CN219156452U
Application number: CN202223251258.8U
Authority: CN
Inventors: 刘树林; 卢彬
Original assignee: XCMG Fire Fighting Safety Equipment Co Ltd
Current assignee: XCMG Fire Fighting Safety Equipment Co Ltd
Priority date: 2022-12-05
Filing date: 2022-12-05
Publication date: 2023-06-09
Anticipated expiration: 2032-12-05

Abstract

The utility model discloses a general type overhaul support with adjustable length, which comprises an outer cylinder, a plurality of positioning holes formed in the outer cylinder, an inner cylinder sleeved in the outer cylinder and capable of moving along the inner wall of the outer cylinder, and a locking wheel positioned in the outer cylinder and hinged with the inner cylinder, wherein the locking wheel comprises a locking part and a cam part, the locking part of the locking wheel is extruded by the inner wall of the outer cylinder in an initial state, the inner cylinder is pulled to move to any positioning hole when the locking wheel moves, and the locking wheel rotates around the hinged part under the action of gravity of the locking wheel, and swings outwards and is embedded into the positioning holes, so that the outer cylinder and the inner cylinder are locked and fixed. According to the utility model, the length of the overhauling bracket is adjustable through the locking wheel, so that the overhauling bracket is high in universality, and can be used for supporting the scissor arms of different specifications and types.

Description

General-purpose type length-adjustable overhauling bracket

Technical Field

The utility model relates to an overhaul support for a scissor type movable lifting working platform, in particular to a universal overhaul support with adjustable length.

Background

For a scissor type lifting work platform, a large number of mechanical, hydraulic and electric components are arranged in and below a scissor arm frame. The equipment needs to stretch the scissor arm support during maintenance, so that the maintenance and the maintenance of mechanical, hydraulic and electric components which are inconvenient to maintain in the fully contracted state of the equipment are facilitated. For safety, the maintenance support is required to support the scissor arm, so that the scissor arm can be supported by the maintenance support even if the scissor arm abnormally falls during maintenance, thereby protecting the safety of maintenance personnel and preventing equipment from being damaged.

The overhaul support of the existing scissor type movable lifting working platform is often assembled on a scissor arm support. One end of the arm support is hinged to the arm support, and the other end of the arm support is fixed to the arm support. When the vehicle is in a working state, the maintenance bracket is fixed on the arm support, so that the normal lifting and descending of the arm support are not affected; when the vehicle is in a maintenance state, the fixed end of the maintenance support is released, and the shear fork arm support can be supported after rotating around the hinged end, so that the arm support is prevented from falling.

As shown in fig. 1, when the boom is operating normally, the service bracket a is fixed in the b position. At this time, the maintenance support A does not influence the normal lifting of the arm support. When maintenance equipment is required, the scissor arm frame is lifted to a designated height, then the maintenance support A rotates around the connecting shaft from the fixed position to the supporting state, namely the position a, and then the arm frame is lowered, so that the arm frame cross rod B is positioned in the notch on the maintenance support A, and the safety state that the maintenance support supports the arm frame is achieved. At this time, even if the arm support falls abnormally due to various reasons (such as unloading of a lifting cylinder), the arm support does not fall due to the support of the overhaul support A, so that personnel for maintenance in the arm support cannot be extruded, and equipment can be protected.

At least 1 overhaul support is arranged on each shearing forklift at present, and some shearing forklifts can have 2 or even more overhaul supports. The service bracket is actually used only for maintenance and service of the vehicle and is not required for normal operation of the vehicle. Excessive maintenance brackets become burdensome when the vehicle works, each shear forklift is provided with the maintenance bracket, the manufacturing cost is high, and a user needs to pay more use cost; in addition, if the overhaul support is improperly fixed, the extrusion of the scissor arm frame can be caused, and the vehicle is destroyed and the user is killed when serious, so that unnecessary potential safety hazards are caused.

Therefore, there is a need to solve the above-mentioned problems.

Disclosure of Invention

The utility model aims to: the utility model aims to provide a universal type length-adjustable overhauling bracket which can be used for supporting scissor frames of different specifications and types.

The technical scheme is as follows: in order to achieve the above purpose, the utility model discloses a general type overhaul support with adjustable length, which comprises an outer cylinder, a plurality of positioning holes formed in the outer cylinder, an inner cylinder sleeved in the outer cylinder and capable of moving along the inner wall of the outer cylinder, and a locking wheel positioned in the outer cylinder and hinged with the inner cylinder, wherein the locking wheel comprises a locking part and a cam part, the locking part of the locking wheel is extruded by the inner wall of the outer cylinder in an initial state, the inner cylinder is pulled to move to any positioning hole when the locking wheel moves, and the locking wheel rotates around the hinged part under the action of gravity of the locking wheel, and swings outwards and is embedded into the positioning holes, so that the outer cylinder and the inner cylinder are locked and fixed.

Wherein, the cross section of the outer cylinder and the inner cylinder is quadrilateral.

Preferably, a plurality of positioning holes are uniformly distributed on one side surface of the outer cylinder along the vertical direction.

Furthermore, a plurality of locating holes are uniformly distributed on the two opposite outer surfaces of the outer cylinder along the vertical direction, locking wheels which are arranged in a bilateral symmetry manner are hinged on the inner cylinder, the left locking wheels are matched with the left locating holes, and the right locking wheels are matched with the right locating holes.

Further, a plurality of locating holes are uniformly distributed on the four outer side surfaces of the outer cylinder along the vertical direction, 4 locking wheels which are symmetrically arranged are hinged on the inner cylinder, and each locking wheel is matched with the corresponding locating hole on one outer side surface.

Preferably, the locking portion and the cam portion are integrally formed, and the weight of the cam portion is greater than the weight of the locking portion.

Further, be provided with the lower plate that is used for backstop cam portion on the inner tube, under the action of locking wheel gravity, the locking wheel is rotatory around articulated department, and locking portion outwards swings and imbeds in the locating hole, cam portion butt lower plate, locking portion and cam portion atress are balanced.

Preferably, the inner cylinder is provided with a connecting plate, and the locking wheel is hinged with the connecting plate through a connecting shaft.

Furthermore, the lower end of the outer cylinder is provided with a lower support plate which forms a notch with a downward opening and is used for overhauling the support.

Further, the upper end of the inner barrel is provided with an upper supporting plate which forms a notch with an upward opening and is used for overhauling the support.

The beneficial effects are that: compared with the prior art, the utility model has the following advantages:

(1) According to the utility model, the length of the overhaul support is adjustable through the locking wheel, so that the overhaul support has high universality, and can be used for supporting scissor arms of different specifications and models;

(2) The overhaul support has high safety coefficient, and does not need to be placed on a scissor arm support device, so that the problem of potential safety hazard caused by improper assembly occurs;

(3) The maintenance support greatly reduces the use cost, only needs to provide a few sets for service personnel, does not need to be configured for each trolley, and can greatly save the manufacturing cost and the use cost of users.

Drawings

FIG. 1 is a schematic diagram of a prior art structure;

FIG. 2 is a sectional view showing an initial state of the service rack in embodiment 1 of the present utility model;

FIG. 3 is a cross-sectional view showing an elongated and locked state of the service rack in embodiment 1 of the present utility model;

fig. 4 is a schematic structural view of the maintenance bracket in the embodiment 1 of the present utility model in an extended locked state;

FIG. 5 is a sectional view showing a retracted state of an inspection rack in embodiment 1 of the present utility model;

FIG. 6 is a sectional view showing an elongation locked state of the service rack in embodiment 2 of the present utility model;

fig. 7 is a schematic structural view of the maintenance bracket in the embodiment 2 of the present utility model in an extended locked state;

FIG. 8 is a cross-sectional view showing an elongated and locked state of the service rack in embodiment 2 of the present utility model;

FIG. 9 is a partial cross-sectional view showing a retracted state of the service rack in embodiment 2 of the present utility model;

FIG. 10 is a sectional view showing an elongation locked state of the service rack in embodiment 3 of the present utility model;

FIG. 11 is a schematic view showing the structure of the maintenance bracket in the extended locked state in embodiment 3 of the present utility model;

FIG. 12 is a sectional view showing an elongated and locked state of the service rack in embodiment 3 of the present utility model;

fig. 13 is a partial sectional view showing a retracted state of an inspection rack in embodiment 3 of the present utility model.

Detailed Description

The technical scheme of the utility model is further described below with reference to the accompanying drawings.

Example 1

As shown in fig. 2 and 3, the universal type length-adjustable overhauling bracket comprises an outer cylinder 1, an inner cylinder 2 and a locking wheel 3, wherein the cross sections of the outer cylinder 1 and the inner cylinder 2 are quadrilateral, and a plurality of positioning holes 101 are uniformly distributed on one side surface of the outer cylinder 1 along the vertical direction. The inner cylinder 2 is sleeved in the outer cylinder 1, and the inner cylinder 2 can move up and down along the inner wall of the outer cylinder 1. The inner cylinder 2 is provided with a connecting plate 5, the locking wheel 3 is hinged with the connecting plate 5 through a connecting shaft 6, and the connecting plate 5 is provided with a lower bottom plate 4. The connecting plate 5 and the lower bottom plate 4 are both positioned in the outer cylinder 1. The locking wheel 3 includes a locking portion 301 and a cam portion 302, the locking portion 301 and the cam portion 302 are of an integrally formed structure, and the weight of the cam portion 302 is greater than that of the locking portion 301, so that the locking wheel 3 is of an eccentric structure, and the locking wheel 3 can rotate around the connecting shaft 6. The lower end of the outer cylinder 1 is provided with a lower support plate 7 forming a notch with a downward opening and used for maintenance support, and the upper end of the inner cylinder 2 is provided with an upper support plate 8 forming a notch with an upward opening and used for maintenance support.

As shown in fig. 2 and 3, in the initial state, the locking portion 301 of the locking wheel 3 is pressed by the inner wall of the outer cylinder 1, and the locking wheel 3 is in the retracted state. When the length of the maintenance support needs to be increased, the inner cylinder 2 is only required to be pulled upwards in a vertical state, when the locking part 301 of the locking wheel 3 moves to the positioning hole 101 on the outer cylinder 1, the extrusion action of the inner wall of the outer cylinder 1 is cancelled, the locking wheel 3 rotates around the hinged part under the dead weight action of the locking wheel 3, the locking part 301 swings outwards and is embedded into the positioning hole 101, the cam part 302 abuts against the lower bottom plate 4, the stress of the locking part 301 and the cam part 302 is balanced, and the locking part and the cam part are in a complete supporting state, so that the outer cylinder 1 and the inner cylinder 2 are locked and fixed, as shown in fig. 4.

When the service rack is used, the service rack needs to be retracted. As shown in fig. 5, the inner cylinder 2 is pulled out after the maintenance support is leveled, so that the locking wheel 3 returns to the retracted state under the extrusion and gravity action of the inner wall of the outer cylinder 1, and at the moment, the inner cylinder 2 can be manually pushed back to enable the maintenance support to reach the retracted state.

Example 2

As shown in fig. 6 to 9, example 2 is identical to example 1, and differs only in that: a plurality of positioning holes 101 are uniformly distributed on the two opposite outer side surfaces of the outer cylinder 1 along the vertical direction, locking wheels 3 which are symmetrically arranged left and right are hinged on the inner cylinder 2, the left locking wheels are matched with the left positioning holes, and the right locking wheels are matched with the right positioning holes. When the maintenance support is used for a working scene with a larger bearing, 2 locking wheels which are symmetrically arranged can be adopted for locking and fixing in order to increase the stability of the support.

Example 3

As shown in fig. 10 to 13, example 3 is identical to example 1, and differs only in that: a plurality of positioning holes 101 are uniformly distributed on the four outer side surfaces of the outer cylinder 1 along the vertical direction, 4 locking wheels 3 which are symmetrically arranged are hinged on the inner cylinder 2, and each locking wheel is matched with a positioning hole on the corresponding outer side surface. The connecting plate 5 can be in a cross plate structure, namely, the connecting plate is formed by cross connection of a transverse plate and a vertical plate. When the maintenance support is used for a working scene with a larger bearing, 4 locking wheels which are symmetrically arranged can be adopted for locking and fixing in order to increase the stability of the support.

Claims

1. General adjustable maintenance support of length, its characterized in that: the novel locking device comprises an outer cylinder (1), a plurality of positioning holes (101) formed in the outer cylinder, an inner cylinder (2) sleeved in the outer cylinder and capable of moving along the inner wall of the outer cylinder, and a locking wheel (3) located in the outer cylinder and hinged with the inner cylinder, wherein the locking wheel (3) comprises a locking part (301) and a cam part (302), the locking part (301) of the locking wheel is extruded by the inner wall of the outer cylinder (1) in an initial state, the inner cylinder (2) is pulled to move to any positioning hole (101) when the locking wheel (3) moves to the position, and the locking wheel (3) rotates around the hinge under the action of gravity of the locking wheel (3), and is outwards swung and embedded into the positioning hole (101), so that the outer cylinder (1) and the inner cylinder (2) are locked and fixed.

2. The universal length adjustable service bracket of claim 1, wherein: the cross sections of the outer cylinder (1) and the inner cylinder (2) are quadrilateral.

3. The universal length adjustable service bracket of claim 2, wherein: a plurality of positioning holes (101) are uniformly distributed on the surface of one side of the outer cylinder (1) along the vertical direction.

4. The universal length adjustable service bracket of claim 2, wherein: a plurality of locating holes (101) are uniformly distributed on the two opposite outer side surfaces of the outer cylinder (1) along the vertical direction, locking wheels (3) which are symmetrically arranged left and right are hinged on the inner cylinder (2), the left locking wheels are matched with the left locating holes, and the right locking wheels are matched with the right locating holes.

5. The universal length adjustable service bracket of claim 2, wherein: a plurality of positioning holes (101) are uniformly distributed on the four outer side surfaces of the outer cylinder (1) along the vertical direction, 4 locking wheels (3) which are symmetrically arranged are hinged on the inner cylinder (2), and each locking wheel is matched with the corresponding positioning hole on one outer side surface.

6. The universal length adjustable service bracket of claim 1, wherein: the locking part (301) and the cam part (302) are of an integrally formed structure, and the weight of the cam part (302) is larger than that of the locking part (301).

7. The universal length adjustable service bracket of claim 1, 4 or 5, wherein: a lower bottom plate (4) for stopping the cam part (302) is arranged on the inner cylinder (2), the cam part (302) is abutted against the lower bottom plate (4), and the locking part (301) and the cam part (302) are in stress balance.

8. The universal length adjustable service bracket of claim 1, wherein: the inner cylinder (2) is provided with a connecting plate (5), and the locking wheel (3) is hinged with the connecting plate (5) through a connecting shaft (6).

9. The universal length adjustable service bracket of claim 1, wherein: the lower end of the outer cylinder (1) is provided with a lower supporting plate (7) which is used for overhauling and supporting and forms a notch with a downward opening.

10. The universal length adjustable service bracket of claim 1, wherein: the upper end of the inner cylinder (2) is provided with an upper supporting plate (8) which forms a notch with an upward opening and is used for overhauling and supporting.