Rail transit vehicle through passage cab apron installation auxiliary device

Abstract

The utility model relates to a rail transit vehicle through passage cab apron installation auxiliary device which comprises a handheld part, the handheld part is detachably connected with one end of a connecting part, the other end of the connecting part is detachably connected with an operating part, and the operating part comprises a first rod part and a second rod part integrally connected to one end of the first rod part. The included angle is formed between the first rod part and the second rod part, and by means of the installation auxiliary device, working efficiency is improved, labor intensity is reduced, and damage to installation personnel is avoided.

Description

Technical Field

[0001] This utility model relates to the field of rail transit technology, specifically to an auxiliary device for installing a cross passageway for rail transit vehicles. Background Technology

[0002] The statements herein provide only background information related to this invention and do not necessarily constitute prior art.

[0003] The connecting passageway is a crucial component of urban rail transit vehicles, linking adjacent carriages. It's a flexible and movable part of the vehicle, adapting to operation on underground, surface, and elevated tracks, allowing passengers to safely pass between carriages. It acts as a joint when the vehicle traverses curves, providing recoverable deformation capacity. Simultaneously, it reduces external noise and heat transfer, acts as a seal, and provides safe standing and passage space for passengers between adjacent carriages. The quality of the connecting passageway's maintenance and installation directly affects the normal and safe operation of the train and the safety of passengers.

[0004] The connecting passageway ramp is installed using a positioning pin and spring clip system. Installation and disassembly require two operators. One operator pulls the springs on both sides of the ramp to retract the clips, while the other reaches under the ramp from the side to position the pin in its designated hole. Once the pin engages with the ramp, the springs are released, and the clips lock into place, completing the installation. Due to limited space in the work area, close coordination between the two operators is crucial, and precise positioning is essential for successful operation. The positioning of the pin, in particular, must be reliably installed; any misalignment or disengagement will compromise train safety.

[0005] Currently, the method used to install the ramp slabs in the through passageway requires 15 minutes to align and install one ramp slab, and requires two people to assist in the installation. This results in low installation efficiency and the risk of mechanical injuries such as pinching. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of the prior art and provide an auxiliary device for installing a cross passageway slab in rail transit vehicles, which improves the work efficiency of the cross passageway installation and avoids injury to the installation personnel.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An embodiment of this utility model provides an auxiliary device for installing a cross passageway in a rail transit vehicle, including a handheld part, one end of which is detachably connected to a connecting part, and the other end of which is detachably connected to an operating part. The operating part includes a first rod and a second rod integrally connected to one end of the first rod, with a set angle between the first rod and the second rod.

[0009] Optionally, the set included angle is 30°, 45°, 60°, 75°, or 90°.

[0010] Optionally, an arc-shaped transition section is provided between the first and second rod sections.

[0011] Optionally, the handheld part is a handheld rod, which includes a straight rod and a ring rod. One end of the straight rod is detachably connected to the operating part, and the other end is integrally connected to the ring rod.

[0012] Optionally, the connecting part is a connecting rod, one end of which is detachably connected to the handheld part and the other end is detachably connected to the operating part.

[0013] Optionally, the connecting rod is composed of at least one rod segment, and when the connecting rod is composed of multiple rod segments, adjacent rod segments can be detachably connected.

[0014] Optionally, one end of the rod segment is provided with an external thread section, and the other end is provided with an internal thread hole that matches the external thread section or is fixed with a nut that matches the external thread section.

[0015] Optionally, the end of the hand-held part that mates with the connecting part is provided with an external thread section, and correspondingly, the end of the connecting part that mates with the hand-held part is provided with an internal thread hole that matches the external thread section or is fixed with a nut that matches the external thread section.

[0016] Optionally, the end of the operating part that mates with the connecting part is provided with an external thread section, and correspondingly, the end of the connecting part that mates with the operating part is provided with an internal thread hole or nut that matches the external thread section.

[0017] Optionally, the first rod portion and the connecting portion are detachably connected, and the outer surface of the set area at the end of the second rod portion for engaging with the pin includes a cylindrical surface with a notch, the notch of the cylindrical surface being a plane, the plane being used for engaging with the pin.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. The installation auxiliary device of this utility model has a connecting part and an operating part. The operating part can be inserted under the transition plate through the inspection hole of the transition plate. Utilizing its hook-shaped structure to cooperate with the positioning pin, the positioning pin can be lifted. There is no need for the operator to reach under the transition plate from the side to lift the pin. One worker can complete the installation of the transition plate, which effectively improves work efficiency, saves manpower, and eliminates the safety hazards caused by blind installation by bare hands. It also optimizes the on-site working environment and saves manpower and time.

[0020] 2. The installation auxiliary device of this utility model has an operating part and a connecting part that are detachably connected. The connecting part is composed of multiple rod segments that are detachably connected. The length of the connecting part and the angle between the first rod and the second rod of the operating part can be adjusted according to the scene and vehicle model of the installation of the ramp. Therefore, it is applicable to a variety of scenes and vehicle models and has a wide range of applicable operations. Attached Figure Description

[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute a limitation thereof.

[0022] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this utility model. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the overall structure of Embodiment 1 of this utility model. Figure 2 ;

[0024] Figure 3 This is a schematic diagram of the handheld part structure of Embodiment 1 of this utility model;

[0025] Figure 4 This is a schematic diagram of the operating part structure of Embodiment 1 of this utility model;

[0026] Figure 5 This is a utility model Figure 4 Enlarged view of a portion at point A;

[0027] Among them, 1. Handheld part, 2. Connecting part, 3. Operating part;

[0028] 1-1. Straight rod section; 1-2. Ring-shaped rod section; 1-3. External thread section;

[0029] 3-1. First rod section, 3-2. Second rod section, 3-3. External thread section, 3-4. Transition section. Detailed Implementation

[0030] Example 1

[0031] This embodiment provides an auxiliary device for installing a cross passageway slab in a rail transit vehicle, such as... Figures 1-2 As shown, it includes a handheld part 1, which is detachably connected to one end of a connecting part 2. The other end of the connecting part 2 is detachably connected to an operating part 3. In use, the operating part enters the mounting and mating contact surface of the plate through the inspection hole to achieve the alignment and control of the plate.

[0032] like Figure 3As shown, the handheld part 1 is formed by bending a rod. Preferably, the handheld part 1 is formed by bending a stainless steel rod, including a straight rod part 1-1 and an annular rod part 1-2. One end of the straight rod part 1-1 is detachably connected to the connecting part 2, and the other end is integrally connected to the annular rod part 1-2.

[0033] During the processing of the handheld part, the stainless steel rod is divided into a front half and a rear half. The front half is the part that is closer to the operator when in use, and the rear half is the part that is closer to the ramp when in use. The front half is bent into a ring shape to form a ring rod part 1-2, and the rear half is a straight rod part 1-1.

[0034] The connecting part 2 is a connecting rod made of stainless steel. One end of the connecting rod is detachably connected to the end of the straight rod 1-1 of the handheld part 1, and the other end is detachably connected to the operating part 3.

[0035] In one embodiment, the end of the straight rod 1-1 is provided with an external thread section 1-3, the diameter of which is smaller than the diameter of the straight rod 1-1. Correspondingly, the end of the connecting rod used to connect with the straight rod 1-1 is provided with an internal thread hole that matches the external thread section 1-3. The connecting rod is threadedly connected to the external thread section 1-3 connected to the straight rod 1-1 through the internal thread hole, thereby realizing a detachable and fixed connection between the connecting part 2 and the handheld part 1.

[0036] In another embodiment, an external thread is machined directly on the end of the straight rod 1-1 that is used to mate with the connecting part, forming an external thread section 1-3. A nut is welded and fixed on the end of the connecting rod that is used to connect with the straight rod, and the nut is threadedly connected to the external thread section 1-3, thereby realizing a detachable and fixed connection between the connecting part and the handheld part.

[0037] In this embodiment, in order to meet the usage requirements of different operating scenarios, the connecting rod is composed of multiple detachable rod segments. By increasing or decreasing the number of rod segments, the length of the connecting part can be increased or decreased.

[0038] Furthermore, for a single rod segment, one end of the segment has an external threaded section, and the other end has an internal threaded hole that matches the external threaded section. Adjacent rod segments are connected by threads through the external threaded section and the internal threaded hole.

[0039] For the rod segment connected to the operating unit 3, both ends of the rod segment are provided with internal threaded holes. The internal threaded hole at one end is used for detachable and fixed connection with the adjacent rod segment, and the internal threaded hole at the other end is used for detachable and fixed connection with the operating unit.

[0040] like Figure 4As shown, the operating part 3 adopts a bent rod structure, preferably made of stainless steel. In this embodiment, the operating part is formed by bending a stainless steel rod. The operating part includes a first rod part 3-1 and a second rod part 3-2 with a set angle. One end of the first rod part 3-1 is integrally connected to one end of the second rod part 3-2, and the other end of the first rod part 3-1 is detachably connected to the connecting rod.

[0041] Furthermore, the end of the first rod portion 3-1 that mates with the connecting rod is provided with an external thread section 3-3. The diameter of the external thread section 3-3 is smaller than the diameter of the first rod portion 3-1. Correspondingly, the end of the connecting rod that mates with the first rod portion 3-1 is provided with an internal thread hole that matches the external thread section 3-3. The external thread section 3-3 is threadedly connected to the internal thread hole, thereby realizing a detachable and fixed connection between the operating part 3 and the connecting part 2.

[0042] In another embodiment, an external thread structure is directly machined on the end surface of the first rod 3-1 to form an external thread segment, and a nut is welded to the end of the connecting rod used to connect the first rod 3-1. The external thread segment 3-3 is threadedly connected to the nut to achieve a detachable fixed connection between the first rod and the connecting rod.

[0043] Furthermore, to avoid stress concentration at the corner of the first rod 3-1 and the second rod 3-2, which would affect their service life, an arc-shaped transition part 3-4 is provided between the first rod 3-1 and the second rod 3-2. The transition part 3-4 is integrally connected to the first rod 3-1 and the second rod 3-2. The first rod 3-1, the second rod 3-2 and the transition part 3-4 are all made by bending a single stainless steel rod.

[0044] The included angle between the first rod 3-1 and the second rod 3-2 is set to 30°, 45°, 60°, 75° or 90°, which can be selected according to the vehicle model and the operating site.

[0045] In this embodiment, as Figure 5 As shown, the cross-sections of the first and second rods are circular. The second rod has a cut-off portion in the designated area to form a plane, so that the outer surface of the second part in the designated area is a cylindrical surface with a notch. The notch of the cylindrical surface is a plane, which is used to cooperate with the groove of the pin. This setting method effectively increases the contact surface with the pin groove during operation, eliminates operational errors caused by slippage, and improves installation quality and work efficiency.

[0046] The method of using the slab installation auxiliary device in this embodiment is as follows: The operator pulls the slab tension spring with one hand, causing the clamp to retract, and holds the connecting part of the slab installation auxiliary device in the other hand. The operator inserts the operating part through the inspection hole of the slab, and contacts the second rod part with the slot of the pin shaft below the slab. The pin shaft is positioned by lifting it up. At this time, the tension spring is released, and the clamp locks into the positioning pin slot, thus completing the slab installation.

[0047] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. An auxiliary device for installing a cross passageway slab in a rail transit vehicle, characterized in that, It includes a handheld part, one end of which is detachably connected to a connecting part, and the other end of which is detachably connected to an operating part. The operating part includes a first rod and a second rod integrally connected to one end of the first rod, with a set angle between the first rod and the second rod.

2. The auxiliary device for installing a through passageway slab for rail transit vehicles as described in claim 1, characterized in that, The set included angle is 30°, 45°, 60°, 75°, or 90°.

3. The auxiliary device for installing a through passageway slab for rail transit vehicles as described in claim 1, characterized in that, An arc-shaped transition section is provided between the first and second sections.

4. The auxiliary device for installing a through passageway slab for rail transit vehicles as described in claim 1, characterized in that, The handheld part adopts a handheld rod, which includes a straight rod and a ring rod. One end of the straight rod is detachably connected to the operating part, and the other end is integrally connected to the ring rod.

5. The auxiliary device for installing a through passageway slab for rail transit vehicles as described in claim 1, characterized in that, The connecting part adopts a connecting rod, one end of which is detachably connected to the hand-held part, and the other end is detachably connected to the operating part.

6. The auxiliary device for installing a cross passageway slab for rail transit vehicles as described in claim 5, characterized in that, The connecting rod is composed of at least one rod segment. When the connecting rod is composed of multiple rod segments, adjacent rod segments can be detachably connected.

7. The auxiliary device for installing a cross passageway slab in a rail transit vehicle as described in claim 1, characterized in that, One end of the rod segment is provided with an external thread section, and the other end is provided with an internal thread hole that matches the external thread section or is fixed with a nut that matches the external thread section.

8. The auxiliary device for installing a cross passageway slab in a rail transit vehicle as described in claim 1, characterized in that, The end of the hand-held part that mates with the connecting part is provided with an external thread section. Correspondingly, the end of the connecting part that mates with the hand-held part is provided with an internal thread hole that matches the external thread section or is fixed with a nut that matches the external thread section.

9. The auxiliary device for installing a cross passageway slab in a rail transit vehicle as described in claim 1, characterized in that, The end of the operating part that mates with the connecting part is provided with an external thread section, and correspondingly, the end of the connecting part that mates with the operating part is provided with an internal thread hole or nut that matches the external thread section.

10. The auxiliary device for installing a through passageway slab in a rail transit vehicle as described in claim 1, characterized in that, The first rod portion is detachably connected to the connecting portion. The outer surface of the set area at the end of the second rod portion for engaging with the pin includes a cylindrical surface with a notch. The notch of the cylindrical surface is a plane, which is used to engage with the pin.

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