Carriage folding guardrail

Abstract

The utility model belongs to the field of carriage guardrails, and provides a carriage folding guardrail which comprises a carriage body, bearing supports are vertically welded to the edge of one end of the carriage body in parallel, movable parts are hinged to the interiors of the bearing supports, a folding guardrail body is fixedly installed on one sides of the movable parts, and a fixing clamping plate is fixedly installed on the top of one side of the front end face of the folding guardrail body. A fixing clamping groove is formed in the middle of one end of the fixing clamping plate, a positioning mechanism is arranged on one side edge of the carriage body and used for fixing the folding protective fence to the side edge of the carriage body, the positioning mechanism comprises a limiting supporting plate, and the limiting supporting plate is fixedly installed on one side edge of the outer surface of the carriage body; by arranging the positioning mechanism, when the folding protective guard rotates to the side edge of the carriage, the fixed clamping plate can be clamped into the limiting clamping groove, the movable clamping piece is clamped into the fixed clamping groove under the action of the first extension spring, and the folding protective guard can be reliably fixed to the side edge of the carriage and prevented from shaking or being accidentally unfolded in the running process of a vehicle.

Description

Technical Field

[0001] This utility model belongs to the field of carriage guardrails, specifically a carriage folding guardrail. Background Technology

[0002] Folding guardrails are foldable protective devices installed on the edges of truck and bus compartments. They are mainly used to unfold into a protective barrier when needed to prevent goods from slipping or people from accidentally falling, and can be folded up for storage when not in use to save space. Existing folding guardrails typically use a hinged or sliding structure, and unfolding and folding are achieved by rotation or translation.

[0003] Traditional folding guardrails are usually in an unfixed state when opened. When fully unfolded, the guardrails stand vertically around the vehicle body, occupying the loading space at the edge of the vehicle body. When the guardrails are rotated and folded to the side of the vehicle body, there is a lack of reliable locking mechanism, making it difficult to keep them fixed. During vehicle operation, they are prone to shaking or even accidentally unfolding due to bumps and vibrations, which may cause damage by colliding with surrounding objects. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a folding guardrail for a vehicle compartment, solving the problem that rotating guardrails in the prior art are inconvenient to position.

[0005] A folding guardrail for a train carriage includes a train carriage body. Bearing supports are welded side by side at one end of the train carriage body. A movable part is hinged inside the bearing support. A folding guardrail is fixedly installed on one side of the movable part. A fixing plate is fixedly installed on the top of one side of the front end face of the folding guardrail. A fixing slot is opened in the middle of one end of the fixing plate. A positioning mechanism is provided on one side of the train carriage body for fixing the folding guardrail to the side of the train carriage body.

[0006] The positioning mechanism includes a limiting support plate, which is fixedly installed on one side of the outer surface of the carriage body. A limiting slot is opened at the top of one end of the limiting support plate. A movable locking piece is rotatably installed on the top of one side of the limiting support plate through a bearing. A first tension spring is installed at the bottom of the movable locking piece near the hinge shaft. The bottom end of the first tension spring is fixed to the bottom of the limiting support plate.

[0007] The main body of the carriage is also equipped with a locking structure at one end, which is used to fix the folding guardrail to the rear of the main body of the carriage.

[0008] Preferably, the locking structure includes a support frame, which is fixedly installed on one side of the main body of the carriage, away from the bearing support. An adjustment handle is hinged to one side of the support frame, and a support kit is rotatably mounted on the outer surface of the adjustment handle. Guide grooves are provided on both sides of the support kit. A movable plate is movably installed inside the support kit. A limit plate is fixedly attached to the upper surface of the movable plate above the support kit. A limit hole is provided at the top of one end of the limit plate, and a second tension spring is sleeved on one side of the outer surface of the limit plate inside the support kit.

[0009] Preferably, a hook is fixedly installed at one end of the main body of the carriage near the upper part of the support frame, the fixing slot is engaged with the outer surface of the hook, the limiting plate is sleeved on the outer surface of the hook, and the limiting plate is located outside the fixing plate.

[0010] Preferably, the outer surface of the fixed card plate is located inside the limiting card slot near the bottom of the fixed card slot, and one end of the movable card is located inside the fixed card slot, and the fixed card slot and the movable card engage with each other.

[0011] Preferably, both sides of the movable plate extend to the outside of the guide groove, and the guide groove and the movable plate are interlocked.

[0012] Preferably, the support kit has a through hole at the top center, and the center of one side of the outer surface of the limiting plate is located in the through hole, and the limiting plate and the through hole are mutually compatible.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. By setting a positioning mechanism, when the folding guardrail is rotated to the side of the carriage, the fixed plate can be inserted into the limiting slot, and the movable clip is inserted into the fixed slot under the action of the first tension spring, which can reliably fix the folding guardrail to the side of the carriage and prevent it from shaking or accidentally unfolding during vehicle operation.

[0015] 2. This utility model achieves this by having all components in the locking structure work together. When the folding guardrail is unfolded and fixed at the rear of the carriage, the fixing slot engages with the hook, and the limiting plate is sleeved on the outside of the hook. The position of the limiting plate can be adjusted by adjusting the handle to securely lock the folding guardrail and prevent it from loosening during use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the folding guardrail after it has been folded up in this utility model;

[0018] Figure 3 This utility model Figure 1 A magnified schematic diagram of the structure of part A in the diagram;

[0019] Figure 4 This utility model Figure 2 A magnified schematic diagram of part B.

[0020] In the picture:

[0021] 1. Carriage body; 2. Bearing support; 3. Moving parts; 4. Folding guardrail; 5. Fixing plate; 6. Fixing slot; 7. Limiting support plate; 8. Limiting slot; 9. Moving fastener; 10. First tension spring; 11. Hook; 12. Support frame; 13. Adjusting handle; 14. Support kit; 15. Guide slide; 16. Moving plate; 17. Limiting hanging plate; 18. Limiting hole; 19. Second tension spring. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0023] Example 1:

[0024] As attached Figure 1 To be continued Figure 4 As shown:

[0025] This utility model provides a folding guardrail for a carriage, including a carriage body 1. Bearing supports 2 are welded side by side at one end of the carriage body 1. A movable part 3 is hinged inside the bearing support 2. A folding guardrail 4 is fixedly installed on one side of the movable part 3. A fixing plate 5 is fixedly installed on the top of one side of the front end face of the folding guardrail 4. A fixing slot 6 is opened in the middle of one end of the fixing plate 5. A positioning mechanism is provided on one side of the carriage body 1 for fixing the folding guardrail 4 to the side of the carriage body 1.

[0026] The positioning mechanism includes a limiting support plate 7, which is fixedly installed on one side of the outer surface of the main body 1 of the carriage. A limiting slot 8 is opened at the top of one end of the limiting support plate 7. A movable locking piece 9 is rotatably installed on the top of one side of the limiting support plate 7 through a bearing. A first tension spring 10 is installed at the bottom of the movable locking piece 9 near the hinge shaft. The bottom of the first tension spring 10 is fixed to the bottom of the limiting support plate 7. The outer surface of the fixed locking plate 5 is located inside the limiting slot 8 near the bottom of the fixed slot 6. One side of the movable locking piece 9 is located inside the fixed slot 6. The fixed slot 6 and the movable locking piece 9 are engaged with each other.

[0027] One end of the carriage body 1 is also equipped with a locking structure for fixing the folding guardrail 4 to the rear of the carriage body 1.

[0028] As can be seen from the above, by setting up the positioning mechanism, the folding guardrail 4 can be reliably fixed when rotated to the side of the carriage, preventing it from shaking or accidentally unfolding. This solves the problem that existing guardrails are difficult to fix on the side, and improves the stability and safety of the guardrail.

[0029] Example 2:

[0030] Reference Figure 1 and Figure 3 The locking structure includes a support frame 12, which is fixedly installed on one side of the main body 1 of the carriage, facing away from the bearing support 2. An adjustment handle 13 is hinged to one side of the support frame 12. A support kit 14 is rotatably mounted on the outer surface of the adjustment handle 13. Guide grooves 15 are provided on both sides of the support kit 14. A movable plate 16 is movably installed inside the support kit 14. Both sides of the movable plate 16 extend to the outside of the guide grooves 15. The guide grooves 15 and the movable plate 16 are interlocked. A limit plate 17 is fixedly connected to the upper surface of the movable plate 16 above the support kit 14. A through hole is provided in the middle of the top of the support kit 14. The middle of one side of the outer surface of the limit plate 17 is located in the through hole. The limit plate 17 and the through hole are compatible with each other. A limit hole 18 is provided at the top of one end of the limit plate 17. A second tension spring 19 is sleeved inside the support kit 14 on one side of the outer surface of the limit plate 17.

[0031] A hook 11 is fixedly installed at one end of the main body 1 near the upper part of the support frame 12. The fixing slot 6 is engaged with the outer surface of the hook 11, and the limiting plate 17 is sleeved on the outer surface of the hook 11. The limiting plate 17 is located outside the fixing plate 5.

[0032] As can be seen from the above, the connection and cooperation between the various components of the locking structure enable the folding guardrail 4 to be firmly fixed at the rear of the carriage when unfolded. The position of the limiting plate 17 can be flexibly adjusted by adjusting the handle 13, which further enhances the reliability of the locking, ensures the stability of the guardrail during use, and avoids affecting the protective effect due to loosening.

[0033] Working principle: When the folding guardrail 4 needs to be folded to the side of the carriage, rotate the folding guardrail 4 so that it rotates around the hinge point between the movable part 3 and the bearing support 2. When the folding guardrail 4 is rotated to the position, the fixing plate 5 enters the limiting slot 8 on the limiting support plate 7. At this time, under the pulling force of the first tension spring 10, one end of the movable part 9 is inserted into the fixing slot 6, thereby firmly fixing the folding guardrail 4 to the side of the carriage to prevent it from shaking or accidentally unfolding.

[0034] When it is necessary to unfold the folding guardrail 4 and fix it to the rear of the carriage, first disengage the movable clip 9 from the fixed clip 6, and then rotate the folding guardrail 4 around the hinge point to unfold it. After unfolding it into place, engage the fixed clip 6 with the hook 11 at one end of the carriage body 1, and then operate the adjustment handle 13. The adjustment handle 13 drives the support kit 14 to rotate. Since the two sides of the movable plate 16 are interlocked with the guide slide 15, the movable plate 16 slides within the support kit 14, thereby driving the limiting hanging plate 17 to move. This causes the limiting hanging plate 17 to be sleeved on the hook 11 and located outside the fixed clip 5. At this time, under the action of the second tension spring 19, the limiting hanging plate 17 securely locks the folding guardrail 4 to prevent it from loosening, ensuring that it can effectively play a protective role during use.

[0035] The embodiments of this utility model are given for the purpose of illustration and description. Although embodiments of this utility model have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the utility model. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this utility model.

Claims

1. A carriage folding guardrail, comprising a carriage main body (1), bearing supports (2) are welded on the upper and lower parallel edges of one end of the carriage main body (1), movable pieces (3) are hinged inside the bearing supports (2), and folding guardrails (4) are fixedly installed on one side of the movable pieces (3), characterized in that: The front end face side top of the folding guardrail (4) is fixedly provided with a fixed clamping plate (5), one end of the fixed clamping plate (5) is provided with a fixed clamping groove (6), and one side of the carriage main body (1) is provided with a positioning mechanism for fixing the folding guardrail (4) at the side edge of the carriage main body (1). The positioning mechanism comprises a limiting support plate (7), the limiting support plate (7) is fixedly installed at one side of the outer surface of the carriage main body (1), one end of the limiting support plate (7) is provided with a limiting clamping groove (8), and one side of the limiting support plate (7) is rotatably provided with a movable clamping piece (9) through a bearing, and the bottom end of the movable clamping piece (9) is provided with a first extension spring (10) near the hinge shaft, and the bottom end of the first extension spring (10) is fixedly connected to the bottom of the limiting support plate (7). The end of the carriage main body (1) is also provided with a locking structure for fixing the folding guardrail (4) at the tail of the carriage main body (1).

2. A truck bed folding rail as described in claim 1, wherein: The locking structure comprises a support frame (12), the support frame (12) is fixedly installed at the end of the carriage main body (1) and behind the bearing support (2), one end of the support frame (12) is hingedly provided with an adjusting handle (13), the outer surface of the adjusting handle (13) is rotatably provided with a supporting sleeve (14), the two side edges of the supporting sleeve (14) are provided with guide sliding grooves (15), the supporting sleeve (14) is movably provided with an activity plate (16), the upper surface of the activity plate (16) extends above the supporting sleeve (14) and is fixedly connected with a limiting hanging plate (17), one end of the limiting hanging plate (17) is provided with a limiting hole (18), and the outer surface of the limiting hanging plate (17) is provided with a second extension spring (19) inside the supporting sleeve (14).

3. A folding truck bed rail as in claim 2, wherein: The end of the carriage main body (1) is fixedly installed with a hook (11) above the support frame (12), the fixed clamping groove (6) is clamped on the outer surface of the hook (11), the limiting hanging plate (17) is sleeved on the outer surface of the hook (11), and the limiting hanging plate (17) is located outside the fixed clamping plate (5).

4. The foldable truck bed rail of claim 1, wherein: The outer surface of the fixed clamping plate (5) is located inside the limiting clamping groove (8) below the fixed clamping groove (6), one end of the movable clamping piece (9) is located inside the fixed clamping groove (6), and the fixed clamping groove (6) and the movable clamping piece (9) are clamped with each other.

5. The foldable truck bed rail of claim 2, wherein: The two side edges of the activity plate (16) extend to the outside of the guide sliding groove (15), and the guide sliding groove (15) and the activity plate (16) are embedded with each other.

6. The foldable truck bed rail of claim 2, wherein: The top end of the supporting sleeve (14) is provided with a through hole in the middle, one side of the outer surface of the limiting hanging plate (17) is located in the through hole, and the limiting hanging plate (17) and the through hole are matched with each other. The top end of the supporting sleeve (14) is provided with a through hole in the middle, one side of the outer surface of the limiting hanging plate (17) is located in the through hole, and the limiting hanging plate (17) and the through hole are matched with each other.

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