Locking and fixing device for front frame and rear frame of articulated vehicle

Abstract

The utility model relates to the technical field of articulated vehicles, and discloses an articulated vehicle front and rear frame locking and fixing device which comprises a fixing plate and a front frame, the rear end of the left side of the fixing plate is fixedly connected with a fixing piece, the inner wall of the fixing piece is in threaded connection with a threaded locking column, and the front end of the left side of the fixing plate is fixedly connected with a supporting plate. A rotating shaft is rotatably connected to the interior of the supporting plate, a locking connecting plate is fixedly connected to the bottom of the rotating shaft, a limiting sliding groove is formed in the top wall of the locking connecting plate, a limiting column is fixedly connected to the bottom wall of the threaded locking column, and the outer wall of the limiting column is slidably connected with the limiting sliding groove. According to the utility model, the threaded locking column is separated from the inside of the fixing piece by rotating the threaded locking column, the locking connecting plate is rotated and the threaded locking column is slid to be fixed with the locking fixing frame, so that the front frame and the rear frame are in a fixed connection state through the locking connecting plate, and the situation that the front frame and the rear frame are not concentric and unstable is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of articulated vehicles, in particular to a locking and fixing device for front and rear frames of an articulated vehicle. Background Art

[0002] An articulated truck is a transport combination consisting of two or more vehicles that are connected together by hinges, allowing them to turn relative to each other when turning. Such vehicles are often used to transport large amounts of freight, as their articulated structure allows for a larger turning radius, making it easier to maneuver in narrow streets or winding roads.

[0003] The front and rear frames of articulated vehicles are connected by an articulated seat, which is a mechanical connection device commonly found in various engineering and mechanical applications. It allows two parts to move relative to each other, usually in rotation, thereby achieving flexibility and adjustability of the connection. It is suitable for various engineering and mechanical applications and provides important support for the normal operation and performance of the mechanical system.

[0004] This method is fine when the vehicle is moving forward, but when the vehicle is backing up or the vehicle stops unloading, the front and rear frames are only connected by the hinge seat pin, which can easily cause the front and rear frames to be non-concentric and unstable, and easily form an angle that affects stability. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a locking and fixing device for the front and rear frames of an articulated vehicle, aiming to improve the problem that the front and rear frames are easily unstable due to being connected only by the pin shaft of the articulated seat, which easily forms an angle that affects the stability.

[0006] In order to achieve the above-mentioned objectives, the utility model adopts the following technical scheme: a locking and fixing device for the front and rear frames of an articulated vehicle, comprising a fixing plate and a front frame, the left rear end of the fixing plate is fixedly connected to a fixing piece, the inner wall of the fixing piece is threadedly connected to a threaded locking column, the left front end of the fixing plate is fixedly connected to a supporting plate, the inner part of the supporting plate is rotatably connected to a rotating shaft, the bottom of the rotating shaft is fixedly connected to a locking connecting plate, the top wall of the locking connecting plate is provided with a limiting sliding groove, the bottom wall of the threaded locking column is fixedly connected to a limiting column, the outer wall of the limiting column is slidably connected to the limiting sliding groove, the right side of the front frame is fixedly connected to a locking fixing frame, the outer wall of the fixing plate is provided with a rear frame, and the inner wall of the rear frame is provided with a mounting mechanism.

[0007] As a further description of the above technical solution:

[0008] The mounting mechanism comprises two spring locking plates, the middle parts of the two spring locking plates are respectively fixedly connected to the inner top wall of the rear frame, the bottom walls of the two spring locking plates are respectively fixedly connected with a clamping block, a locking groove is provided on the left side of the rear frame, the right side of the fixing plate is clamped with the locking groove, the front and rear sides of the top wall of the fixing plate are both provided with clamping grooves, and the bottoms of the two clamping blocks are respectively clamped with the corresponding clamping grooves.

[0009] As a further description of the above technical solution:

[0010] A protective shell is provided on the top of the two spring locking plates, and the bottom of the protective shell is rotatably connected to the top of the rear frame through a hinge.

[0011] As a further description of the above technical solution:

[0012] The locking and fixing frame and the top wall of the fixing member are both fixedly connected with rubber pads, and arc grooves are formed inside the two rubber pads.

[0013] As a further description of the above technical solution:

[0014] A limiting plate is fixedly connected to the front side of the locking and fixing frame, and a protrusion is arranged at the bottom of the rear side of the limiting plate.

[0015] As a further description of the above technical solution:

[0016] The outer walls of the two spring locking plates are both fixedly connected with sealing rings.

[0017] As a further description of the above technical solution:

[0018] The left bottoms of the two engaging blocks are both provided with inclined surfaces.

[0019] As a further description of the above technical solution:

[0020] The tops of the two spring locking plates are fixedly connected with handles, and the insides of the two handles are provided with curved surfaces.

[0021] The utility model has the following beneficial effects:

[0022] In the utility model, the threaded locking column is rotated to disengage from the interior of the fixing piece, the locking connecting plate is rotated and the threaded locking column is slid to fix it with the locking fixing frame, so that the front and rear frames are in a fixed connection state through the locking connecting plate, thereby improving stability and safety, avoiding the situation that the front and rear frames are not concentric and unstable, and no angle is formed to affect stability.

[0023] In the utility model, the two spring locking plates are pulled to separate the engaging blocks from the corresponding engaging grooves, thereby pulling the fixing plate to release the locking grooves inside the rear frame, making it easy to disassemble and repair the fixing parts and the support plate, thereby improving the maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional diagram of a locking and fixing device for front and rear frames of an articulated vehicle proposed by the utility model;

[0025] Figure 2 This is a structural schematic diagram of a locking connecting plate of a locking and fixing device for front and rear frames of an articulated vehicle proposed by the utility model;

[0026] Figure 3 The utility model is a schematic diagram of the installation mechanism of the front and rear frame locking and fixing device of an articulated vehicle.

[0027] Legend:

[0028] 1. Fixing plate; 2. Mounting mechanism; 201. Spring locking plate; 202. Engaging block; 203. Locking groove; 204. Engaging groove; 205. Sealing ring; 206. Handle; 3. Fixing piece; 4. Support plate; 5. Rotating shaft; 6. Locking connecting plate; 7. Limiting slide groove; 8. Threaded locking column; 9. Limiting column; 10. Rear frame; 11. Front frame; 12. Locking fixing frame; 13. Rubber pad; 14. Limiting plate; 15. Protective shell. DETAILED DESCRIPTION

[0029] 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.

[0030] Reference Figure 1 and Figure 2The utility model provides an embodiment: a locking and fixing device for front and rear frames of an articulated vehicle, comprising a fixing plate 1 and a front frame 11, a fixing piece 3 is fixedly connected to the left rear end of the fixing plate 1, a threaded locking column 8 is threadedly connected to the inner wall of the fixing piece 3, a support plate 4 is fixedly connected to the left front end of the fixing plate 1, a rotating shaft 5 is rotatably connected to the inside of the supporting plate 4, a locking connecting plate 6 is fixedly connected to the bottom of the rotating shaft 5, a limiting slide groove 7 is provided on the top wall of the locking connecting plate 6, a limiting column 9 is fixedly connected to the bottom wall of the threaded locking column 8, an outer wall of the limiting column 9 is slidably connected to the limiting slide groove 7, a locking fixing frame 12 is fixedly connected to the right side of the front frame 11, a rear frame 10 is arranged on the outer wall of the fixing plate 1, and a mounting mechanism 2 is arranged on the inner wall of the rear frame 10;

[0031] Specifically, during the operation of the vehicle, the locking connecting plate 6 is always kept in a folded state to ensure that the threaded locking column 8 is firmly locked with the thread inside the fixing part 3. This design is intended to maintain the stability and safety of the vehicle during driving. However, when the vehicle stops running or enters a state of unloading, such stability and safety may be threatened. When the vehicle stops running or unloading, the threaded locking column 8 is rotated so that it rotates upward together with the limiting column 9 and finally disengages from the inside of the fixing part 3. Next, the operator can pull the threaded locking column 8 backward to slide through the limiting slide groove 7. , rotate the locking connecting plate 6 so that it can be aligned with the bottom of the locking fixing frame 12, and then slide the threaded locking column 8 into the inside of the locking fixing frame 12. After completing this series of operations, it is necessary to rotate the threaded locking column 8 to lock it with the locking fixing frame 12. In this way, the front frame 11 and the rear frame 10 are stably and safely connected through the locking connecting plate 6. This design enables the articulated truck to maintain good stability and safety when it is stopped and unloading. This innovative design helps to avoid instability caused by the eccentricity of the front frame 11 and the rear frame 10.

[0032] Reference Figure 1 The locking bracket 12 and the top wall of the fixing member 3 are fixedly connected with rubber pads 13, and arc grooves are provided inside the two rubber pads 13; the front side of the locking bracket 12 is fixedly connected with a limiting plate 14, and a protrusion is provided at the bottom of the rear side of the limiting plate 14;

[0033] Specifically, the rubber pad 13 can reduce the rotation damage of the threaded locking column 8, and the limiting plate 14 can limit the locking connecting plate 6, thereby facilitating the connection and locking.

[0034] Reference Figure 1 , Figure 2 and Figure 3The mounting mechanism 2 includes two spring locking plates 201, the middle parts of the two spring locking plates 201 are respectively fixedly connected to the inner top wall of the rear frame 10, the bottom walls of the two spring locking plates 201 are fixedly connected with a clamping block 202, a locking groove 203 is provided on the left side of the rear frame 10, the right side of the fixing plate 1 is clamped with the locking groove 203, the front and rear sides of the top wall of the fixing plate 1 are both provided with a clamping groove 204, and the bottoms of the two clamping blocks 202 are respectively clamped with the corresponding clamping grooves 204;

[0035] Specifically, by pulling the two spring locking members 201, the two engaging blocks 202 are separated from the corresponding engaging grooves 204. This design allows maintenance personnel to easily operate the fixing plate 1, thereby unlocking the fixing plate 1 and the locking groove 203 inside the rear frame 10. Secondly, the operation process of this device is also very convenient. Only by gently pulling the fixing plate 1 can the fixing member 3 and the supporting plate 4 be disassembled. This design greatly improves the maintenance efficiency, avoids cumbersome operation processes, and can extend the service life of the equipment. At the same time, this also reduces the maintenance cost of the equipment, saving a lot of production costs for the enterprise.

[0036] Reference Figure 3 , the tops of the two spring locking plates 201 are both provided with a protective shell 15, and the bottom of the protective shell 15 is rotatably connected to the top of the rear frame 10 through a hinge; the outer walls of the two spring locking plates 201 are both fixedly connected with a sealing ring 205; the left bottoms of the two engaging blocks 202 are both provided with an inclined surface; the tops of the two spring locking plates 201 are both fixedly connected with a handle 206, and the insides of the two handles 206 are both provided with an arc surface;

[0037] Specifically, the tops of the two spring locking plates 201 can be protected by the protective shell 15, the sealing effect inside the rear frame 10 is improved by the sealing ring 205, and the left bottoms of the two engaging blocks 202 are both provided with inclined surfaces to facilitate engagement with the engaging grooves 204, and the handle 206 makes it easy to pull the spring locking plates 201.

[0038] Working principle: when the vehicle is in operation, the locking connecting plate 6 is in a folded state, and the threaded locking column 8 is locked with the internal thread of the fixing part 3. When the vehicle is in a stopped state or unloading state, by rotating the threaded locking column 8, the threaded locking column 8 and the limiting column 9 are rotated upward and finally leave the inside of the fixing part 3, and the threaded locking column 8 is pulled backward to slide through the limiting slide groove 7, and the locking connecting plate 6 is rotated forward to align it with the bottom of the locking fixing frame 12, so that the threaded locking column 8 is slid to the inside of the locking fixing frame 12, and the threaded locking column 8 is rotated to complete the locking with the locking fixing frame 12, so that the front frame 11 and the rear frame 10 are fixedly connected through the locking connecting plate 6. The articulated vehicle has improved stability and safety, and avoids the instability caused by the front frame 11 and the rear frame 10 being non-concentric. By pulling the two spring locking members 201, the two engaging blocks 202 are separated from the corresponding engaging grooves 204, and then the fixing plate 1 can be pulled to the left to unlock the fixing plate 1 and the locking groove 203 inside the rear frame 10, so that the fixing member 3 and the support plate 4 can be disassembled and repaired, thereby improving the maintenance efficiency, extending the service life of the device, and saving production costs.

[0039] 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 locking and fixing device for front and rear frames of an articulated vehicle, comprising a fixing plate (1) and a front frame (11), characterized in that: The left rear end of the fixing plate (1) is fixedly connected to a fixing piece (3), the inner wall of the fixing piece (3) is threadedly connected to a threaded locking column (8), the left front end of the fixing plate (1) is fixedly connected to a support plate (4), the interior of the support plate (4) is rotatably connected to a rotating shaft (5), the bottom of the rotating shaft (5) is fixedly connected to a locking connecting plate (6), the top wall of the locking connecting plate (6) is provided with a limiting sliding groove (7), the bottom wall of the threaded locking column (8) is fixedly connected to a limiting column (9), the outer wall of the limiting column (9) is slidably connected to the limiting sliding groove (7), the right side of the front frame (11) is fixedly connected to a locking fixing frame (12), the outer wall of the fixing plate (1) is provided with a rear frame (10), and the inner wall of the rear frame (10) is provided with a mounting mechanism (2).

2. The locking and fixing device for front and rear frames of an articulated vehicle according to claim 1, characterized in that: The mounting mechanism (2) comprises two spring locking plates (201), the middle parts of the two spring locking plates (201) are respectively fixedly connected to the inner top wall of the rear frame (10), the bottom walls of the two spring locking plates (201) are both fixedly connected with a locking block (202), the left side of the rear frame (10) is provided with a locking groove (203), the right side of the fixing plate (1) is engaged with the locking groove (203), the front and rear sides of the top wall of the fixing plate (1) are both provided with locking grooves (204), and the bottoms of the two locking blocks (202) are respectively engaged with the corresponding locking grooves (204).

3. The locking and fixing device for front and rear frames of an articulated vehicle according to claim 2, characterized in that: A protective shell (15) is provided on the top of each of the two spring locking plates (201), and the bottom of the protective shell (15) is rotatably connected to the rear frame (10) via a hinge.

4. The locking and fixing device for front and rear frames of an articulated vehicle according to claim 1, characterized in that: The locking and fixing frame (12) and the top wall of the fixing member (3) are both fixedly connected with a rubber pad (13), and arc grooves are formed inside the two rubber pads (13).

5. The locking and fixing device for front and rear frames of an articulated vehicle according to claim 1, characterized in that: A limiting plate (14) is fixedly connected to the front side of the locking and fixing frame (12), and a protrusion is provided at the bottom of the rear side of the limiting plate (14).

6. The locking and fixing device for front and rear frames of an articulated vehicle according to claim 2, characterized in that: The outer walls of the two spring locking plates (201) are both fixedly connected with sealing rings (205).

7. The locking and fixing device for front and rear frames of an articulated vehicle according to claim 2, characterized in that: The left bottoms of the two engaging blocks (202) are both provided with inclined surfaces.

8. The locking and fixing device for front and rear frames of an articulated vehicle according to claim 2, characterized in that: The tops of the two spring locking plates (201) are fixedly connected to handles (206), and the insides of the two handles (206) are provided with curved surfaces.

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