Lifting device for mounting bottom door of boxcar

Abstract

The utility model discloses a lifting device for installing a bottom door of a boxcar, which comprises a lifting structure, a support plate is arranged at the top of the lifting structure, a buffer component is arranged at the top of the lifting structure, the buffer component comprises support blocks which are arranged at the bottom of the support plate in a central symmetry manner, and the bottoms of the support blocks are fixedly connected with a barrier plate. Through the design of the supporting plate, the supporting block, the group baffle, the buffer spring, the damping block and the mounting assembly, when the bottom door needs to be placed at the top of the lifting structure during use, the bottom door is moved to the top of the lifting structure through a crown block firstly, then the bottom door is put down, and the bottom door makes contact with the supporting plate; when the supporting plate is pressed by the bottom door, the supporting plate drives the supporting block to move downwards, the supporting block extrudes and deforms the buffer spring and the damping block at the bottom of the supporting block, downward force of the supporting block is absorbed through deformation of the buffer spring and the damping block, impact force on the lifting structure is reduced, and therefore the lifting structure is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of a carriage bottom door lifting device, in particular to a lifting device for installing a truck carriage bottom door. Background Art

[0002] A bottom door is installed at the bottom of a railway freight car used for bulk cargo, and its function is to facilitate the unloading of bulk cargo. The method of installing the bottom door in the prior art is: the freight car is lifted, the bottom door is lifted by a crane and moved to the top of the lifting device, the installer moves the bottom door to the bottom of the freight car, and then supports the bottom door through the lifting device, and puts the bottom door into the frame, and connects the bottom door to the frame of the bottom door of the freight car by installing a connecting piece; during use, the bottom door needs to be lifted by the crane first and placed on the top of the lifting device, but when the bottom door is placed on the top of the lifting device, there is a situation where the lifting device is damaged due to the collision of the bottom door. Utility Model Content

[0003] The purpose of the utility model is to provide a lifting device for installing a bottom door of a truck compartment to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lifting device for installing the bottom door of a truck compartment, comprising a lifting structure, a support plate is arranged on the top of the lifting structure, a buffer assembly is arranged on the top of the lifting structure, the buffer assembly comprises a support block centrally symmetrically arranged at the bottom of the support plate, a blocking plate is fixedly connected to the bottom of the support block, a buffer spring is arranged at the bottom of the support block, the buffer spring is arranged on the top of the lifting structure, a damping block is centrally symmetrically fixedly connected to the top of the lifting structure, and an installation assembly for disassembling the support plate is arranged at the connection between the support block and the support plate.

[0005] Preferably, a trolley for moving the position of the lifting structure is provided at the bottom of the lifting structure.

[0006] Preferably, the buffer assembly further comprises an outer frame which is horizontally and centrally symmetrically fixedly connected to the top of the lifting structure, the buffer spring is inserted and connected inside the outer frame, and the support block is inserted and connected to the top of the outer frame.

[0007] Preferably, the mounting assembly includes a T-shaped hole centrally and symmetrically opened on the top of the support plate, a T-shaped block is inserted and connected inside the T-shaped hole, a positioning groove is opened on the top of the support block, the T-shaped block is inserted and connected inside the positioning groove, and a clamping piece for fixing the position of the T-shaped block is provided at the connection between the T-shaped block and the positioning groove.

[0008] Preferably, the connector comprises a slot provided on an inner wall of one side of the positioning slot, a block with a trapezoidal cross section is connected inside the slot, the block is inserted and connected to one side of the T-shaped block, and a pushing portion is provided on one side of the block.

[0009] Preferably, the pushing portion includes a cavity opened at the bottom of the T-shaped block, a slider is fixedly connected to one side of the block, the slider is inserted and connected to the inside of the cavity, and an elastic block is fixedly connected to the inner wall of one side of the cavity, and the elastic block is fixedly connected to one side of the slider.

[0010] Technical effects and advantages of the utility model:

[0011] The utility model adopts the design of the support plate, the support block, the baffle plate, the buffer spring, the damping block and the installation component. When the bottom door needs to be placed on the top of the lifting structure during use, the bottom door is first moved to the top of the lifting structure by the overhead crane, and then the bottom door is lowered to make the bottom door contact with the support plate. When the support plate is subjected to the pressure of the bottom door, the support plate drives the support block to move downward, and the support block squeezes and deforms the buffer spring and the damping block at the bottom thereof. The downward force of the support block is absorbed by the deformation of the two, thereby reducing the impact force on the lifting structure, thereby protecting the lifting structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a front sectional structural schematic diagram of the utility model.

[0013] Figure 2 For this utility model Figure 1 A schematic diagram of the enlarged structure of part A.

[0014] Figure 3 This is one of the partial three-dimensional structural schematic diagrams of the utility model.

[0015] Figure 4 This is the second schematic diagram of the partial three-dimensional structure of the utility model.

[0016] In the figure: 1. lifting structure; 2. trolley; 3. support plate; 4. buffer assembly; 401. support block; 402. blocking plate; 403. buffer spring; 404. damping block; 405. outer frame; 5. mounting assembly; 501. T-shaped block; 502. T-shaped hole; 503. positioning groove; 504. clamping groove; 505. clamping block; 506. cavity; 507. slider; 508. elastic block. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] The utility model provides Figure 1-4 A lifting device for installing a bottom door of a truck compartment is shown, comprising a lifting structure 1, a support plate 3 is arranged on the top of the lifting structure 1, a buffer assembly 4 is arranged on the top of the lifting structure 1, the buffer assembly 4 comprises a support block 401 centrally symmetrically arranged at the bottom of the support plate 3, a blocking plate 402 is fixedly connected to the bottom of the support block 401, a buffer spring 403 is arranged at the bottom of the support block 401, the buffer spring 403 is arranged at the top of the lifting structure 1, a damping block 404 is centrally symmetrically fixedly connected to the top of the lifting structure 1, an installation assembly 5 for disassembling the support plate 3 is arranged at the connection between the support block 401 and the support plate 3, a trolley 2 for moving the position of the lifting structure 1 is arranged at the bottom of the lifting structure 1, the buffer assembly 4 also comprises an outer frame 405 horizontally centrally symmetrically fixedly connected to the top of the lifting structure 1, the buffer spring 403 is inserted and connected to the inside of the outer frame 405, and the support block 401 is inserted and connected to the top of the outer frame 405.

[0019] It should be noted that the lifting structure 1 is a screw lift of model X1S500-1200. The lifting structure 1 is fixed on the top of the trolley 2. When the lifting structure 1 needs to be moved, the trolley 2 drives the lifting structure 1 to move. The installation component 5 is used to fix the support plate 3 and the support block 401. When the support plate 3 is deformed and damaged by collision, the support plate 3 is directly disassembled and replaced from the top of the support block 401 through the installation component 5. One end of the buffer spring 403 is fixedly connected to the support block 401, and the other end of the buffer spring 403 is fixedly connected to the lifting structure 1, so that the moving distance of the support block 401 is limited by the buffer spring 403. An outer frame 405 for limiting the moving direction of the support block 401 is fixedly connected to the top of the lifting structure 1. The outer frame 405 is cylindrical in shape, while the support block 401 is cylindrical in shape, and the cylindrical hole in the middle of the outer frame 405 is adapted to the cylindrical shape of the support block 401. When in use, the support block 401 slides inside the outer frame 405, and the moving direction of the support block 401 is limited by the cylindrical hole on the outer frame 405; the buffer spring 403 is an elastic element that can absorb energy and slow down the movement of the object when impacted. The damping block 404 is made of rubber material and is used to absorb and dissipate impact energy. The function of the damping block 404 is to reduce vibration and impact through its shape.

[0020] Furthermore, when the bottom door moves to the top of the support plate 3, the bottom door presses the support plate 3 downward. When the support plate 3 is subjected to the pressure of the bottom door, the support plate 3 drives the support block 401 to move downward. The support block 401 squeezes and deforms the buffer spring 403 and the damping block 404 at its bottom. The downward force of the support block 401 is absorbed through the deformation of the two, thereby reducing the impact force on the lifting structure 1, thereby protecting the lifting structure.

[0021] Specifically, the mounting assembly 5 includes a T-shaped hole 502 centrally and symmetrically opened on the top of the support plate 3, a T-shaped block 501 is inserted and connected inside the T-shaped hole 502, a positioning groove 503 is opened on the top of the support block 401, the T-shaped block 501 is inserted and connected inside the positioning groove 503, and a clamping piece for fixing the position of the T-shaped block 501 is provided at the connection between the T-shaped block 501 and the positioning groove 503, and the clamping piece includes a clamping groove 504 opened on the inner wall of one side of the positioning groove 503, and the clamping groove 504 is provided on the inner wall of the positioning groove 503. 04 has a block 505 with a trapezoidal cross section connected inside, the block 505 is inserted and connected to one side of the T-shaped block 501, a pushing portion is provided on one side of the block 505, the pushing portion includes a cavity 506 opened at the bottom of the T-shaped block 501, a slider 507 is fixedly connected to one side of the block 505, the slider 507 is inserted and connected to the inside of the cavity 506, an elastic block 508 is fixedly connected to the inner wall of one side of the cavity 506, and the elastic block 508 is fixedly connected to one side of the slider 507.

[0022] It should be noted that the T-shaped hole 502 is matched with the T-shaped block 501. When the support plate 3 needs to be installed, the T-shaped block 501 is inserted into the T-shaped hole 502, and then the position of the T-shaped block 501 is fixed by the clamping piece. The position of the support plate 3 with the T-shaped hole 502 is fixed by the T-shaped block 501 in the fixed position; the cavity 506 is matched with the slider 507. When in use, the slider 507 slides inside the cavity 506. The elastic block 508 is made of rubber. When the slider 507 is squeezed toward the elastic block 508, When one side of block 508 moves, elastic block 508 is squeezed and deformed. When slider 507 loses the squeezing force, elastic block 508 recovers its deformation and pushes slider 507 to the side away from elastic block 508. The cross-section of the clamping block 505 is trapezoidal. When the T-shaped block 501 is inserted into the T-shaped hole 502 during use, the hypotenuse of the clamping block 505 contacts the edge of the T-shaped hole 502. When the T-shaped block 501 continues to move, the clamping block 505 is squeezed by the edge of the T-shaped hole 502, so that the clamping block 505 moves to the inside of the cavity 506.

[0023] Furthermore, when it is necessary to fix the position of the support plate 3, the support plate 3 is first placed on the top of the support block 401, and then the T-shaped block 501 is inserted into the inside of the T-shaped hole 502, and the clamping block 505 is squeezed to move toward one side of the cavity 506. When the clamping block 505 is squeezed to move toward one side of the cavity 506, the clamping block 505 drives the slider 507 to move, and the slider 507 is squeezed to move toward one side of the elastic block 508. The elastic block 508 is squeezed and deformed. When the T-shaped block 501 drives the clamping block 505 to move to align with the slot 504, the elastic block 508 restores the deformation and drives the slider 507 and the clamping block 505 to move, so that the clamping block 505 moves to the inside of the slot 504, and the T-shaped block 501 is fixed in the positioning slot 503 by clamping, and the position of the support plate 3 is fixed by the T-shaped block 501 in a fixed position.

[0024] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lifting device for installing a bottom door of a truck compartment, comprising a lifting structure (1), characterized in that: A support plate (3) is arranged at the top of the lifting structure (1); a buffer assembly (4) is arranged at the top of the lifting structure (1); the buffer assembly (4) comprises a support block (401) centrally symmetrically arranged at the bottom of the support plate (3); a blocking plate (402) is fixedly connected to the bottom of the support block (401); a buffer spring (403) is arranged at the bottom of the support block (401); the buffer spring (403) is arranged at the top of the lifting structure (1); a damping block (404) is centrally symmetrically fixedly connected to the top of the lifting structure (1); and a mounting assembly (5) for disassembling the support plate (3) is arranged at the connection between the support block (401) and the support plate (3).

2. A lifting device for installing a bottom door of a truck compartment according to claim 1, characterized in that: A trolley (2) for moving the lifting structure (1) is arranged at the bottom of the lifting structure (1).

3. The lifting device for installing the bottom door of a truck compartment according to claim 1, characterized in that: The buffer assembly (4) further comprises an outer frame (405) which is horizontally and centrally symmetrically fixedly connected to the top of the lifting structure (1); the buffer spring (403) is inserted and connected inside the outer frame (405); and the support block (401) is inserted and connected to the top of the outer frame (405).

4. The lifting device for installing a bottom door of a truck compartment according to claim 1, characterized in that: The mounting assembly (5) comprises a T-shaped hole (502) centrally and symmetrically arranged on the top of the support plate (3); a T-shaped block (501) is inserted and connected inside the T-shaped hole (502); a positioning groove (503) is arranged on the top of the support block (401); the T-shaped block (501) is inserted and connected inside the positioning groove (503); and a clamping piece for fixing the position of the T-shaped block (501) is arranged at the connection between the T-shaped block (501) and the positioning groove (503).

5. A lifting device for installing a bottom door of a truck compartment according to claim 4, characterized in that: The clamping member comprises a clamping groove (504) provided on the inner wall of one side of the positioning groove (503); a clamping block (505) having a trapezoidal cross section is clamped inside the clamping groove (504); the clamping block (505) is inserted and connected to one side of the T-shaped block (501); and a pushing portion is provided on one side of the clamping block (505).

6. A lifting device for installing a bottom door of a truck compartment according to claim 5, characterized in that: The pushing portion comprises a cavity (506) opened at the bottom of the T-shaped block (501); a slider (507) is fixedly connected to one side of the clamping block (505); the slider (507) is inserted into the cavity (506); an elastic block (508) is fixedly connected to the inner wall of one side of the cavity (506); and the elastic block (508) is fixedly connected to one side of the slider (507).

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