Unhooking device for heavy-load semi-trailer tractor

Abstract

The utility model relates to the technical field of tractor unhooking, in particular to an unhooking device for a heavy-load semi-trailer tractor. According to the technical scheme, the device comprises a fixing plate, a threaded rod and a supporting rod, a connecting block is rotatably installed at the bottom of the fixing plate, a sleeve is fixedly installed at the bottom of the connecting block, the threaded rod is rotatably installed in the sleeve, the supporting rod extending out of the sleeve is installed at the bottom of the threaded rod in a threaded mode, and storage grooves are formed in the two sides of the supporting rod; and a telescopic frame is rotationally mounted in the storage groove. The adjusting handle is rotated to drive the threaded rod to rotate, the rotating threaded rod drives the supporting rod to vertically move to make contact with the ground, the telescopic frame is rotated to stretch out of the containing groove, the telescopic frame extends to the supporting base to make contact with the ground, and the problem that the semitrailer shakes during supporting is solved; when the semitrailer is supported, the semitrailer can be stably unhooked, and potential safety hazards are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of detachment of tractor vehicles, in particular to a detachment device for a heavy-loaded semi-trailer tractor vehicle. Background Art

[0002] A semi-trailer is a vehicle towed by a tractor and has no power drive device. Using a semi-trailer for transportation is the simplest and most effective means to improve economic benefits. When the semi-trailer is uncoupled from the tractor, the semi-trailer needs to be supported to lift the semi-trailer for uncoupling. The semi-trailer is connected to the tractor during driving, and the tractor supports the semi-trailer. At this time, the supporting legs need to be retracted to avoid friction between the supporting legs and the ground. An uncoupling device is needed when uncoupling the tractor. Among them, the "a semi-trailer support device that is easy to fold up" disclosed in the application number "CN214084185U" has solved the existing semi-trailer. The supporting device is large in size, takes up too much space when placed in the semi-trailer compartment, and is not easy to carry. After further searching, it was found that the "a lifting semi-trailer supporting device" disclosed by the application number "CN206664557U" has effectively solved the technical disadvantages of the integral supporting legs, which are inconvenient to fold and disassemble, etc. through a specific technical structure setting. However, in actual use, there are still many defects in the detachable device with similar structure, such as: it does not have the function of increasing the contact area between the supporting legs and the ground, which makes the semi-trailer body easy to shake when supporting, so it is necessary to design a detachable device for heavy-loaded semi-trailer tractors. Utility Model Content

[0003] The purpose of the utility model is to provide a detaching device for a heavy-loaded semi-trailer tractor to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a detaching device for a heavy-loaded semi-trailer tractor, comprising a fixing plate, a threaded rod and a support rod, a connecting block is rotatably installed at the bottom of the fixing plate, a sleeve is fixedly installed at the bottom of the connecting block, a limiting rod is rotatably installed on one side of the sleeve, a threaded rod is rotatably installed inside the sleeve, a second gear is fixedly installed on the outside of the threaded rod, a support rod extending from the sleeve is threadedly installed on the bottom of the threaded rod, storage grooves are opened on both sides of the support rod, and a telescopic frame is rotatably installed inside the storage groove.

[0005] The threaded rod is driven to rotate by turning the adjusting handle, and the rotating threaded rod drives the support rod to move vertically until it contacts the ground. The telescopic frame is rotated to extend it from the storage slot, and the telescopic frame is extended to the support seat and contacts the ground, thereby realizing the function of increasing the supporting area, avoiding the problem of shaking of the semi-trailer when supporting, and being able to stably detach the semi-trailer when supporting the semi-trailer to avoid safety hazards; the semi-trailer is supported by the support rod, so that the height of the semi-trailer is raised to facilitate the detachment operation, and the limit rod is rotated to enter the slot, so that the sleeve is limited and fixed during support, thereby avoiding the problem of rotation of the sleeve when the device is supporting.

[0006] Preferably, a slot corresponding to the limit rod is provided at the bottom of the fixing plate, and a limit sleeve is fixedly installed on the outer side of the support rod. The slot cooperates with the limit rod to prevent the sleeve from shaking during support, and the limit sleeve allows the support rod to move vertically downward to prevent the support rod from tilting.

[0007] Preferably, the fixing plate and the connecting block are rotatably mounted via a first rotating shaft seat, and the receiving slot and the telescopic frame are rotatably mounted via a third rotating shaft seat. The connecting block can be rotated via the first rotating shaft seat, and the telescopic frame can be rotated via the third rotating shaft seat.

[0008] Preferably, the threaded rod is threadedly connected to the support rod through a thread groove, and the limiting rod and the sleeve are rotatably mounted through a second rotating shaft seat. The thread groove cooperates with the threaded rod so that the rotating threaded rod can drive the support rod to move vertically, and the limiting rod can rotate through the second rotating shaft seat.

[0009] Preferably, a support seat is rotatably mounted on the bottom of the telescopic frame, and mounting plates are fixedly mounted on the front and rear ends of the fixed plate. The telescopic frame is extended to the support seat to contact the ground, so as to support the semitrailer, and the fixed plate can be fixed at a desired position by the mounting plate.

[0010] Preferably, an adjustment handle is rotatably mounted on one side of the threaded rod, and a first gear extending to the inside of the threaded rod is fixedly mounted on one side of the adjustment handle, and the first gear is meshed with the second gear. The first gear can be driven to rotate by rotating the adjustment handle, and the rotating first gear can drive the second gear to rotate, and the rotating second gear can drive the threaded rod to move vertically, so that the threaded rod cooperates with the thread groove to drive the support rod to move vertically.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. By providing the storage slot, the support rod and the support seat with mutual cooperation, the threaded rod is driven to rotate by rotating the adjusting handle, and the rotating threaded rod drives the support rod to move vertically until it contacts the ground. The telescopic frame is extended from the storage slot by rotating the telescopic frame, and the telescopic frame is extended to the support seat to contact the ground, thereby realizing the function of increasing the supporting area and avoiding the problem of shaking of the semi-trailer when supporting. When supporting the semi-trailer, the semi-trailer can be stably detached to avoid safety hazards.

[0013] 2. By providing the mutual cooperation between the card slot, the limit rod and the second rotating shaft seat, the semi-trailer is supported by the support rod, so that the height of the semi-trailer is raised to facilitate the unhooking operation. By rotating the limit rod to make it enter the card slot, the sleeve is limited and fixed during support, avoiding the problem of the sleeve rotating during support of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front structural schematic diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the front internal structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the internal structure of the utility model from the side.

[0017] In the figure: 1. fixing plate; 101. slot; 102. mounting plate; 2. first rotating shaft seat; 201. connecting block; 3. sleeve; 301. second rotating shaft seat; 302. limiting rod; 4. threaded rod; 401. first gear; 402. second gear; 403. adjusting handle; 5. supporting rod; 502. threaded groove; 6. third rotating shaft seat; 601. storage slot; 7. telescopic frame; 701. supporting seat. DETAILED DESCRIPTION

[0018] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0019] Embodiment 1

[0020] like Figure 1 , Figure 2 and Figure 3 As shown, the utility model proposes a detaching device for a heavy-duty semi-trailer tractor, comprising a fixing plate 1, a threaded rod 4 and a support rod 5, a connecting block 201 is rotatably mounted on the bottom of the fixing plate 1, a sleeve 3 is fixedly mounted on the bottom of the connecting block 201, a limiting rod 302 is rotatably mounted on one side of the sleeve 3, and a slot 101 corresponding to the limiting rod 302 is provided at the bottom of the fixing plate 1;

[0021] A threaded rod 4 is rotatably installed inside the sleeve 3, an adjusting handle 403 is rotatably installed on one side of the threaded rod 4, a first gear 401 extending to the inside of the threaded rod 4 is fixedly installed on one side of the adjusting handle 403, the first gear 401 is meshed with the second gear 402, a second gear 402 is fixedly installed on the outside of the threaded rod 4, a support rod 5 extending out of the sleeve 3 is threadedly installed on the bottom of the threaded rod 4, the threaded rod 4 and the support rod 5 are threadedly connected by a thread groove 502, and storage grooves 601 are opened on both sides of the support rod 5, a telescopic frame 7 is rotatably installed inside the storage groove 601, and a support seat 701 is rotatably installed on the bottom of the telescopic frame 7.

[0022] The working principle of the unhooking device for a heavy-duty semi-trailer tractor based on Example 1 is as follows: the first gear 401 is driven to rotate by rotating the adjusting handle 403, the rotating first gear 401 drives the second gear 402 to rotate, the rotating second gear 402 drives the threaded rod 4 to rotate, the rotating threaded rod 4 cooperates with the thread groove 502 to drive the support rod 5 to move vertically, so that the support rod 5 moves vertically to contact the ground for support;

[0023] By rotating the telescopic frame 7 to make it extend out from the storage groove 601, the telescopic frame 7 is extended to the support seat 701 to contact the ground, thereby avoiding the problem of shaking of the semi-trailer during support, and ensuring the stability of the semi-trailer body. By rotating the limit rod 302 to make it enter the card slot 101, the sleeve 3 is limited and fixed during support, and the problem of rotation of the sleeve 3 during support is avoided. The adjustment handle 403 is continuously rotated to lift the semi-trailer body to the desired position, and the detachment operation of the tractor is performed.

[0024] Embodiment 2

[0025] like Figure 1 , Figure 2 and Figure 3 As shown, the utility model proposes a detaching device for a heavy-loaded semi-trailer tractor. Compared with the first embodiment, this embodiment also includes: a limiting sleeve is fixedly installed on the outer side of the support rod 5, the fixing plate 1 and the connecting block 201 are rotatably installed through the first rotating shaft seat 2, the storage groove 601 and the telescopic frame 7 are rotatably installed through the third rotating shaft seat 6, the limiting rod 302 and the sleeve 3 are rotatably installed through the second rotating shaft seat 301, and the front and rear ends of the fixing plate 1 are fixedly installed with mounting plates 102.

[0026] In this embodiment, Figure 1 As shown, the support rod 5 can be moved vertically downward by the limiting sleeve to prevent the support rod 5 from tilting; Figure 3 As shown, the connecting block 201 can be rotated through the first rotating shaft seat 2, and the telescopic frame 7 can be rotated through the third rotating shaft seat 6; Figure 1As shown, the limiting rod 302 can be rotated through the second rotating shaft seat 301; Figure 1 As shown, the fixing plate 1 can be fixed at a desired position by means of the mounting plate 102 .

[0027] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A detaching device for a heavy-duty semitrailer tractor, comprising a fixing plate (1), a threaded rod (4) and a support rod (5), characterized in that: A connecting block (201) is rotatably mounted on the bottom of the fixing plate (1), a sleeve (3) is fixedly mounted on the bottom of the connecting block (201), a limiting rod (302) is rotatably mounted on one side of the sleeve (3), a threaded rod (4) is rotatably mounted inside the sleeve (3), a second gear (402) is fixedly mounted on the outside of the threaded rod (4), a supporting rod (5) extending from the sleeve (3) is threadedly mounted on the bottom of the threaded rod (4), receiving grooves (601) are provided on both sides of the supporting rod (5), and a telescopic frame (7) is rotatably mounted inside the receiving groove (601).

2. A detaching device for a heavy-loaded semi-trailer tractor according to claim 1, characterized in that: A slot (101) corresponding to the limiting rod (302) is provided at the bottom of the fixing plate (1), and a limiting sleeve is fixedly installed on the outer side of the supporting rod (5).

3. The detaching device for a heavy-loaded semi-trailer tractor according to claim 1, characterized in that: The fixing plate (1) and the connecting block (201) are rotatably mounted via a first rotating shaft seat (2), and the storage slot (601) and the telescopic frame (7) are rotatably mounted via a third rotating shaft seat (6).

4. The detaching device for a heavy-loaded semitrailer tractor according to claim 1, characterized in that: The threaded rod (4) and the support rod (5) are threadedly connected via a thread groove (502), and the limiting rod (302) and the sleeve (3) are rotatably mounted via a second rotating shaft seat (301).

5. The detaching device for a heavy-loaded semi-trailer tractor according to claim 1, characterized in that: A support seat (701) is rotatably mounted on the bottom of the telescopic frame (7), and mounting plates (102) are fixedly mounted on the front and rear ends of the fixed plate (1).

6. The detaching device for a heavy-loaded semi-trailer tractor according to claim 1, characterized in that: An adjusting handle (403) is rotatably mounted on one side of the threaded rod (4), and a first gear (401) extending into the interior of the threaded rod (4) is fixedly mounted on one side of the adjusting handle (403), wherein the first gear (401) is meshed with a second gear (402).

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