Handrail pull ring repair device

Abstract

The application relates to the technical field of handrail pull ring repairing, and particularly discloses a handrail pull ring repairing device, which comprises a support, the support comprises a mounting bottom plate and a mounting back plate, the mounting back plate is arranged on the top wall of the mounting bottom plate, a fixing seat is movably connected to the top wall of the bottom plate, a pressing force arm is arranged above the fixing seat and movably connected to a locking piece on the mounting back plate, the locking piece is arranged on the mounting back plate, and the locking piece is used for limiting the position of the pressing force arm. The application has the advantages that the handrail pull ring can be quickly installed and repaired, and the repairing efficiency of the handrail pull ring is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of handrail ring repair technology, and in particular to a handrail ring repair device. Background Technology

[0002] As an important component of the passenger compartment's interior system, the handrails in train carriages play a crucial role in providing passengers with stable grip points. However, during actual operation, various problems arise due to prolonged passenger handling. On one hand, the pulling and tugging action causes the internal chain of the handrail to stretch, creating gaps of varying sizes at the joints of the external steel rings. On the other hand, the handrails themselves are characterized by high usage frequency and significant wear, leading to numerous common failure points, such as internal chain cracking, spring breakage, steel ring damage, and easily worn and deformed locking pins.

[0003] To ensure passenger safety, regular inspections of the handrail handles in the passenger compartment are necessary. This includes checking for damage and rust, assessing the condition of individual components by observing their movement, and verifying their secure installation. Special attention should be paid to checking the gaps between the steel rings. Inspecting the rotational stress of the handrail handles and the wear of the chain is crucial to determine if the internal chain is stretched or broken; disassembly, inspection, or replacement may be necessary in some cases.

[0004] However, the handrail rings have a compact and complex internal structure with many components, making them prone to sudden malfunctions. They cannot be properly disassembled, repaired, or reassembled using common tools, and replacing parts is time-consuming, costly, and cannot be repaired promptly. This not only affects the normal operation of the train but also poses a potential threat to passenger safety. Summary of the Invention

[0005] In view of the above-mentioned shortcomings of the existing technology, the purpose of the present invention is to provide a handrail pull ring repair device, which has the advantages of being able to quickly install and repair handrail pull rings, effectively improving the repair efficiency of handrail pull rings.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0007] A handrail pull ring repair device, comprising:

[0008] The bracket includes a mounting base plate and a mounting back plate, the mounting back plate being disposed on the top wall of the mounting base plate;

[0009] A fixed base, which is movably connected to the top wall of the base plate;

[0010] The pressing arm is disposed above the fixed base and movably connected to the mounting back plate.

[0011] A locking element is disposed on the mounting back plate and is used to limit the position of the pressing arm.

[0012] Compared to existing technologies, this application provides stable support for each component through a bracket consisting of a mounting back plate and a mounting base plate. The fixed seat is set on the mounting base plate through a movable connection, which allows for flexible adjustment of the chain position during the repair process. The pressing arm can be moved to achieve precise pressing of the positioning pad. The locking component can effectively restrict the position of the pressing arm during the repair process, ensuring the stability of each component during the repair process and improving the repair efficiency and quality of the handrail pull ring.

[0013] As a preferred embodiment of the present invention, the fixing base includes:

[0014] A movable base is rotatably mounted on the top wall of the mounting base plate, and the movable base is provided with positioning protrusions;

[0015] A limiting seat is provided above the movable base and connected to the mounting back plate, and a limiting groove is provided on the limiting seat.

[0016] Using the above solution, the positioning protrusion can provide a base for the pull ring, and the groove on the limiting seat can effectively position the chain and the steel ring fitted on the chain, so that the various components of the handrail pull ring are accurately positioned on the repair device, which is conducive to subsequent repair operations. At the same time, the movable base is set on the mounting base plate through a rotatable connection. During the repair process, the chain can be rotated by rotating the movable base, which is convenient for adjusting the angle of the chain during the repair process and for pressing the positioning shims later.

[0017] As a preferred embodiment of the present invention, the limiting groove is provided along the direction from the limiting seat to the movable base, and the position of the limiting groove corresponds to the position of the movable base.

[0018] With the above-mentioned solution, the limiting groove is set along the direction from the limiting seat to the movable base and corresponds to the position of the movable base. This can better guide and restrict the position of components such as the chain, so that the chain remains stable during the repair process, thereby improving the accuracy and stability of the repair.

[0019] As a preferred embodiment of the present invention, the positioning protrusion is provided with a rotatable first limiting block. When the first limiting block rotates, at least a portion of the first limiting block is located outside the positioning protrusion, thereby restricting the position of the pull ring sleeved on the positioning protrusion.

[0020] Using the above solution, after the pull ring is sleeved on the positioning protrusion, rotating the first limiting block can limit the position of the pull ring, preventing it from shaking or shifting during the repair process and ensuring the smooth progress of the repair operation.

[0021] As a preferred embodiment of the present invention, the limiting seat is provided with a rotatable second limiting block, and when the second limiting block rotates, at least a portion of the position of the second limiting block corresponds to the position of the limiting groove.

[0022] Using the above solution, after the second limiting block rotates, a part of the second limiting block corresponds to the position of the limiting groove, which can further restrict the position of the chain in the limiting groove, enhance the fixing effect on the chain, and prevent the chain from moving during the repair process.

[0023] As a preferred embodiment of the present invention, a guide block is provided above the limiting seat, the guide block is connected to the limiting seat, and a guide opening is provided on the guide block, the position of the guide opening corresponding to the position of the limiting groove.

[0024] Using the above solution, the guide block can facilitate the positioning of the pull ring mounting base.

[0025] As a preferred embodiment of the present invention, the pressing arm includes:

[0026] A lever arm body, one end of which is rotatably mounted on the mounting back plate;

[0027] A preload member, one end of which is connected to the lever arm body and the other end of which is connected to the mounting back plate;

[0028] A top pin is provided on the lever arm, and the position of the top pin corresponds to the position of the fixed seat;

[0029] The guide plate and guide post are provided. The guide plate is disposed above the lever arm body and connected to the lever arm body. The guide plate is provided with a guide groove. The guide post passes through the guide groove and is connected to the mounting back plate.

[0030] Using the above scheme, the lever arm body can rotate to realize the pressing action, the pre-tightening component provides pre-tightening force so that the pressing lever arm can be reset after operation, the top pin is used to embed the positioning pad into the chain, and the guide plate and guide post ensure the accurate movement direction of the pressing lever arm, thereby improving the pressing accuracy and quality.

[0031] As a preferred embodiment of the present invention, a vertical column is provided on the mounting back plate, the vertical column being located above the fixing base and corresponding to the position of the fixing base.

[0032] With the above solution, the vertical column is located above the fixed base and in the corresponding position, providing a winding point for the tension rope, so that the tension rope can stretch the chain vertically and maintain the stretched state, ensuring the stability of the chain during maintenance and facilitating repair operations.

[0033] As a preferred embodiment of the present invention, a tension rope fastening wheel is provided on the mounting back plate, and the tension rope fastening wheel is located between the vertical column and the pressing arm.

[0034] With the above solution, the tension rope fastening wheel is located between the vertical column and the pressing arm, which can easily fasten the tension rope wrapped around the vertical column, solve the problem of tension rope fixation, and ensure that the chain maintains a fixed state of vertical tension.

[0035] As a preferred embodiment of the present invention, the locking member is rotatably disposed on the side of the mounting back plate, the locking member is provided with a lever, the bottom wall of the locking member is provided with a locking groove, the side wall of the locking member is provided with a locking opening, and the side of the mounting back plate is provided with a locking post corresponding to the locking opening.

[0036] Using the above solution, the locking component can rotate and be operated by a lever. The locking groove, locking port, and locking column work together to effectively lock the pressing arm after it is pressed down, preventing the pressing arm from moving accidentally during the repair process and ensuring the stability and safety of the repair.

[0037] The above-mentioned handrail pull ring repair device has the following beneficial effects:

[0038] The combination of the mounting back plate and the mounting base plate in the bracket provides a stable and reliable support frame for the entire device; the fixed seat is movably connected to the top wall of the mounting base plate, thereby enabling the adjustment of the chain angle during the repair of the handle pull ring, which greatly improves the repair efficiency; the setting of the pressing arm enables precise pressing operation, which can accurately press the positioning shim onto the chain, improving the repair quality; the setting of the locking part can reliably restrict the position of the pressing arm, eliminating the need for manual maintenance of the pressing arm position, which improves the repair efficiency while also enhancing the safety and stability of the repair process. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the structure of a handrail pull ring repair device according to the present invention;

[0040] Figure 2 This is a side view of a handrail pull ring repair device according to the present invention;

[0041] Figure 3 This is a schematic diagram of the press-fit lever arm in a handrail pull ring repair device of the present invention;

[0042] Figure 4 This is a schematic diagram of the locking component in a handrail pull ring repair device of the present invention;

[0043] In the diagram: 1. Bracket; 11. Mounting base plate; 12. Mounting back plate; 2. Fixed seat; 21. Movable base; 22. Positioning protrusion; 23. Limiting seat; 24. Limiting groove; 25. First limiting block; 26. Second limiting block; 27. Guide block; 28. Guide opening; 3. Pressing arm; 31. Arm body; 32. Pre-tightening component; 33. Top pin; 34. Guide plate; 35. Guide column; 36. Guide through groove; 4. Locking component; 41. Lever; 42. Locking groove; 43. Locking port; 44. Locking column; 5. Vertical column; 6. Tension rope fastening wheel.

[0044] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0046] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0047] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0048] This invention proposes a handrail pull ring repair device.

[0049] Reference Figure 1 and Figure 2In one embodiment of the present invention, a handrail pull ring repair device includes a bracket 1, a fixing base 2, a pressing arm 3, and a locking member 4. The fixing base 2, the pressing arm 3, and the locking member 4 are respectively disposed on the bracket 1. The bracket 1 includes a mounting base plate 11 and a mounting back plate 12. The mounting back plate 12 is vertically disposed on the top wall of the mounting base plate 11, and the two are fixedly connected by welding. This connection method can ensure the stability and firmness of the overall structure of the bracket 1, providing a reliable support frame for the entire device. During installation, the mounting base plate 11 is placed stably on the workbench to ensure that the device will not shake during subsequent operations.

[0050] Reference Figure 1 and Figure 2 In one embodiment, the fixed base 2 is movably connected to the top wall of the mounting base plate 11, and includes a movable base 21 and a limiting base 23. The movable base 21 is movably connected to the top wall of the mounting base plate 11 via a pin, and the pin connection allows the movable base 21 to rotate around the connection point at a certain angle, so as to adjust the angle of the chain during the repair process. A positioning protrusion 22 is installed on the movable base 21 by screws, and the positioning protrusion 22 is used to fit the pull ring part of the handle pull ring. A rotatable first limiting block 25 is also provided on the positioning protrusion 22. The first limiting block 25 is fixed to the positioning protrusion 22 by screws. It is worth noting that when fixing the first limiting block to the positioning protrusion with screws, it is necessary to ensure the tightness of the screws, so that the first limiting block 25 can rotate flexibly, but will not lose its limiting function for the pull ring due to excessive looseness. When not in use, the first limiting block 25 is in a position that does not affect the installation of the pull ring; when the pull ring is installed on the positioning protrusion 22, the first limiting block 25 is rotated so that at least a part of it is outside the positioning protrusion 22, thereby restricting the position of the pull ring and preventing the pull ring from shaking or shifting during the repair process.

[0051] The limiting seat 23 is bolted to the mounting back plate 12. This bolted connection facilitates the disassembly and installation of the limiting seat 23, making maintenance and repair of the device easier. In other embodiments, the limiting seat 23 can also be welded to the mounting back plate 12, as long as it allows for installation. The specific connection method between the limiting seat 23 and the mounting back plate 12 is not limited here. A limiting groove 24 is provided on the limiting seat 23, extending from the limiting seat 23 to the movable base 21, and its position corresponds to that of the movable base 21. This groove is used to accommodate the chain and steel ring portion of the handrail pull ring. A rotatable second limiting block 26 is also provided on the limiting seat 23, which is also fixed to the limiting seat 23 with screws to ensure its rotational flexibility and limiting stability. After the chain is placed in the limiting groove 24, the second limiting block 26 is rotated so that at least a portion of its position corresponds to the position of the limiting groove 24, further restricting the chain's position within the limiting groove 24 and preventing the chain from moving during the repair process. In addition, a guide block 27 is provided above the limiting seat 23. The guide block 27 is connected to the limiting seat 23 by screws; this bolted connection makes installation and removal of the guide block 27 convenient. The guide block 27 has a guide opening 28, the position of which corresponds to the position of the limiting groove 24. The guide block and guide opening provide a base for the mounting of the handrail pull ring.

[0052] In actual operation, first, the pull ring of the handrail is put onto the positioning protrusion 22 of the movable base 21, and then the first limiting block 25 is rotated to fix the pull ring; then the chain is placed in the limiting groove 24 of the limiting seat 23, and the second limiting block 26 is rotated to fix the chain and the steel ring put on the chain, so that the chain is accurately in place.

[0053] Reference Figures 1 to 3 In one embodiment, the press arm 3 is disposed above the fixed base 2 and movably connected to the mounting back plate 12, and includes an arm body 31, a pre-tightening member 32, a top pin 33, a guide plate 34, and a guide post 35.

[0054] One end of the lever arm body 31 is rotatably mounted on the mounting back plate 12 via a pivot. This pivot connection allows the lever arm body 31 to rotate up and down around this point, achieving the pressing action. In this embodiment, the pre-tensioning member 32 is a tension spring. One end of the pre-tensioning member 32 is connected to the lever arm body 31 via a hook, and the other end is connected to a bolt pre-installed on the mounting back plate 12 via a hook. This connection method facilitates the installation and replacement of the pre-tensioning member 32 and provides a stable pre-tensioning force for the pressing lever arm 3, allowing it to return to its original position after operation. The top pin 33 is welded to the lever arm body 31. This welding connection ensures the firmness of the connection between the top pin 33 and the lever arm body 31, and its position corresponds to the position of the fixing seat 2. During the pressing process, the top pin 33 moves downward to embed the positioning pad into the middle of the chain and press it firmly. In this embodiment, to ensure the pressing effect, two top pins 33 are used.

[0055] The guide plate 34 is fixedly mounted on the top wall of the lever arm body 31 by welding, ensuring the stability of the guide plate 34 installation. A guide groove 36 is provided on the guide plate 34, through which the guide post 35 passes and connects to the mounting back plate 12. In this embodiment, the guide post 35 is a bolt, which is threaded onto the mounting back plate 12. The cooperation between the guide post 35 and the guide groove 36 ensures the directional accuracy of the lever arm body 31 during movement, allowing the top pin 33 to accurately act at the target position, improving pressing accuracy and quality.

[0056] In the actual pressing operation, first lower the pressing arm 3 so that the top pin 33 is close to the chain position on the fixed seat 2, and then apply a certain pressure so that the top pin 33 embeds the positioning pad into the middle position of the chain and presses it tight.

[0057] Reference Figure 1 and Figure 2 In one embodiment, a vertical column 5 is provided on the mounting back plate 12. The vertical column 5 is located above the fixing seat 2 and corresponds to the position of the fixing seat 2. In this embodiment, the vertical column 5 is bolted and installed on the mounting back plate 12 by means of threaded connection. This connection method can ensure the firmness of the installation of the vertical column 5, so that it will not shake during the repair process, and at the same time facilitate the subsequent maintenance or replacement of the vertical column 5. The tension rope fastening wheel 6 is fixedly installed on the mounting back plate 12 by bolts. In this embodiment, the tension rope fastening wheel 6 includes two rubber rings. The two rubber rings are installed on the mounting back plate 12 by bolts. The tension rope is wound in the middle of the two pressed rubber rings. The friction of the two pressed rubber rings is used to quickly fix the tension rope, which effectively solves the problems of needing to manually pull the rope and the inability to keep the chain in a vertically stretched and fixed state.

[0058] During the repair process, the pull ring, chain, and pull ring mounting base are first connected together using a tension rope. Then, the tension rope is wound around the vertical column 5 to stretch the chain vertically, ensuring that the chain remains stretched throughout the repair process. Next, the tension rope is wound around the tension rope fastening wheel 6 and tightened using the wheel, thus solving the problem of tension rope fixation and ensuring that the chain remains in a vertically stretched and fixed state.

[0059] Reference Figure 1 , Figure 2 and Figure 4 In one embodiment, the locking member 4 is rotatably disposed on the side of the mounting back plate 12. The locking member 4 is connected to the mounting back plate 12 via a pivot, allowing the locking member 4 to rotate flexibly. A lever 41 is provided on the locking member 4, and the lever 41 is fixed to the locking member 4 by welding. A locking groove 42 is formed on the bottom wall of the locking member 4. It is worth noting that different numbers of locking grooves 42 can be formed according to actual needs; in this embodiment, the number of locking grooves 42 is not limited. A locking opening 43 is formed on the side wall of the locking member 4. A locking post 44 is provided on the side of the mounting back plate 12 corresponding to the locking opening 43. The locking post 44 is fixed to the mounting back plate 12 by a threaded connection; in this embodiment, the locking post 44 is a bolt.

[0060] After the pressing arm 3 is pressed down, the lever 41 of the locking member 4 is moved, causing the locking member 4 to rotate. The locking groove 42 on the bottom wall of the locking member 4 is positioned above the pressing arm 3. At this time, the pressing arm 3 is released, and the pressing arm 3 returns to its original position under the action of the pre-tightening member 32. However, due to the obstruction of the locking groove 42, the pressing arm 3 can only abut against the locking groove 42. At the same time, the locking port 43 of the locking member 4 cooperates with the locking post 44 on the side of the mounting back plate 12, restricting the rotation of the locking member 4, thereby achieving the locking purpose of the pressing arm 3, preventing the pressing arm 3 from moving accidentally during the repair process, and ensuring the stability and safety of the repair.

[0061] The working principle of this application is as follows:

[0062] Pull rope connection: The pull ring, chain, and pull ring fixing seat are connected together using a pull rope.

[0063] Fixing the pull ring and chain: Place the pull ring on the positioning protrusion 22 of the movable base 21, and rotate the first limiting block 25 to fix the pull ring; place the chain in the limiting groove 24 of the limiting seat 23, rotate the second limiting block 26 and use the guide block 27 to help fix the chain.

[0064] Tightening the tension rope: Wrap the tension rope around the vertical column 5 to stretch the chain vertically, and then wrap the tension rope around the tension rope tightening wheel 6 to tighten it.

[0065] Adjust the chain direction: Rotate the movable base 21 to align the chain direction with the direction of the center hole of the positioning pad.

[0066] Pressing and positioning shims: Lower the pressing arm 3 to make the top pin 33 move downward, embedding the positioning shims into the corresponding middle position of the chain and pressing them tightly.

[0067] Locking the pressing arm: Move the lever 41 of the locking member 4 to make the locking member 4 rotate, and the locking groove 42 is located above the pressing arm 3 to lock the pressing arm 3.

[0068] Install the fixing pin: Insert the fixing pin into the chain above the positioning pad to complete the installation of the positioning pad, thereby completing the repair of the handrail pull ring.

[0069] The structure and working process of the handrail pull ring repair device of the present invention have been described in detail through the above embodiments. The components work together to efficiently and accurately repair the handrail pull ring, ensuring the stability of the repair process and the repair quality.

[0070] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A handrail pull ring repair device, characterized in that, include: The bracket includes a mounting base plate and a mounting back plate. The mounting back plate is disposed on the top wall of the mounting base plate. The mounting back plate is provided with a tension rope fastening wheel. During the repair process, the tension rope is used to connect the pull ring, chain and pull ring mounting seat together, so that the chain is stretched vertically. The tension rope fastening wheel is used to fasten the tension rope. A fixed base is movably connected to the top wall of the base plate. The fixed base includes a movable base and a limiting seat. The movable base is rotatably mounted on the top wall of the mounting base and has a positioning protrusion for housing the pull ring portion of the armrest pull ring. The limiting seat is located above the movable base and connected to the mounting back plate. The limiting seat has a limiting groove for accommodating the chain and steel ring portion of the armrest pull ring. The limiting groove is positioned along the direction from the limiting seat to the movable base, and its position corresponds to the position of the movable base. The positioning protrusion has a rotatable first limiting block. When the first limiting block rotates, at least a portion of the first limiting block is outside the positioning protrusion, thus restricting the position of the pull ring fitted on the positioning protrusion. A pressing arm is disposed above the fixed base and movably connected to the mounting back plate. The pressing arm includes an arm body and a top pin. One end of the arm body is rotatably disposed on the mounting back plate. The top pin is disposed on the arm body, and the position of the top pin corresponds to the position of the fixed base. The positioning pad is embedded into the middle position of the corresponding chain and pressed tightly by the top pin. A fixing pin is inserted into the chain above the positioning pad to complete the installation of the positioning pad, thereby completing the repair of the handrail pull ring. A locking element is disposed on the mounting back plate and is used to limit the position of the pressing arm.

2. The handrail pull ring repair device according to claim 1, characterized in that: The limiting seat is provided with a rotatable second limiting block. When the second limiting block rotates, at least a portion of the position of the second limiting block corresponds to the position of the limiting groove.

3. The handrail pull ring repair device according to claim 1, characterized in that: A guide block is provided above the limiting seat, the guide block is connected to the limiting seat, and a guide opening is provided on the guide block, the position of the guide opening corresponding to the position of the limiting groove.

4. The handrail pull ring repair device according to claim 1, characterized in that, The pressing arm also includes: A preload member, one end of which is connected to the lever arm body and the other end of which is connected to the mounting back plate; The guide plate and guide post are provided. The guide plate is disposed above the lever arm body and connected to the lever arm body. The guide plate is provided with a guide groove. The guide post passes through the guide groove and is connected to the mounting back plate.

5. The handrail pull ring repair device according to claim 1, characterized in that: A vertical column is provided on the mounting back plate, which is located above the fixing base and corresponds to the position of the fixing base.

6. The handrail pull ring repair device according to claim 5, characterized in that: The tension rope fastening wheel is located between the vertical column and the pressing arm.

7. The handrail pull ring repair device according to claim 1, characterized in that: The locking member is rotatably disposed on the side of the mounting back plate. The locking member is provided with a lever, the bottom wall of the locking member is provided with a locking groove, the side wall of the locking member is provided with a locking opening, and the side of the mounting back plate is provided with a locking post corresponding to the locking opening.

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