Auxiliary hasp resetting device and resetting structure
By designing a latch-assisted reset device, a hydraulic cylinder drives a telescopic rod to press the hinge tightly, solving the problem of difficult latch reset in open wagon doors. This achieves efficient and precise latch restoration and reduces labor intensity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TBEA XINJIANG ENERGY CO LTD
- Filing Date
- 2025-04-21
- Publication Date
- 2026-05-05
AI Technical Summary
The latches on the small doors of railway open wagons are prone to deformation during loading and unloading, making it difficult to reset. Existing tools are highly random in operation, labor-intensive, and inefficient.
Design a latch assist reset device, including a bracket, a push-in component and a reset pressure component. A hydraulic cylinder drives a telescopic rod to rotate the reset pressure component, directly pressing the hinge and restoring the latch to its original position.
It reduces the workload of staff, improves the efficiency and accuracy of buckle reset, and simplifies the operation process.
Smart Images
Figure CN224195636U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of railway auxiliary device technology, and in particular to a latch auxiliary reset device and reset structure. Background Technology
[0002] Open wagons are a common type of freight car on railways, equipped with small doors on their sides. During loading, the pressure from the cargo can cause these doors to deform, preventing the latches from repositioning properly. At the station, tools such as sticks and hammers are commonly used to reshape the doors and reset the latches, thus locking the doors. However, due to the large number of open wagons on a train, this repositioning operation is labor-intensive for railway workers. Furthermore, the process of hammering or prying to reshape the doors is somewhat random, making it difficult to guarantee a quick repositioning of the latches, resulting in low efficiency.
[0003] In view of this, the present invention proposes a buckle-assisted reset device and reset structure to solve or at least alleviate the above-mentioned technical problems. Utility Model Content
[0004] The main purpose of this utility model is to propose a latch auxiliary reset device and reset structure, which aims to solve the problem of high labor intensity and low work efficiency of workers during the latch reset process of railway open wagons.
[0005] To achieve the above objectives, this utility model proposes a latch auxiliary reset device, comprising:
[0006] The bracket includes two opposing support frames, and a hook is provided at one end of each support frame along its length.
[0007] The jacking member includes a hydraulic cylinder, a telescopic rod, and a base. The two sides of the base are respectively hinged to the two support frames. The hydraulic cylinder is mounted on the base, and the telescopic rod is mounted on the hydraulic cylinder. The hydraulic cylinder is used to drive the telescopic rod to extend in a direction away from the base.
[0008] A reset pressure member is disposed between the hook and the base. The two sides of the reset pressure member are respectively hinged to the two support frames. The end of the telescopic rod away from the base is hinged to the reset pressure member. The telescopic rod is used to drive the reset pressure member to rotate.
[0009] In one embodiment, the jacking component is a jack, and the jacking component also includes a handle, which is mounted on the base. Pressing the handle can drive the telescopic rod to extend out of the hydraulic cylinder.
[0010] In one embodiment, the grip includes a fixed section and an extension section, the fixed section being mounted on the base and the extension section being detachably mounted on the fixed section.
[0011] In one embodiment, the bracket further includes at least one support rod, the two ends of which are respectively mounted on one side of the two support frames that are arranged opposite to each other.
[0012] In one embodiment, the hinge joint between the reset pressure member and the support frame is defined as the pressure member connection part;
[0013] The reset pressure member has a pressing protrusion at one end away from the pressure member connection portion, and the pressing protrusion protrudes toward the side opposite to the base.
[0014] In one embodiment, the reset pressure member includes a pressure plate and two opposing support plates. The two ends of the pressure plate are respectively connected to the ends of the two support plates away from the support frame. The pressure plate and the ends of the support plates away from the support frame are combined to form the pressing protrusion. The side of the support plate facing the support frame is hinged to the support frame.
[0015] In one embodiment, the reset pressure member further includes a reinforcing rod, the two ends of which are respectively installed on opposite sides of the two support plates, and the reinforcing rod is disposed between the two pressure member connecting portions.
[0016] In one embodiment, the reset pressure member further includes a connecting rod, the two ends of which are respectively installed on opposite sides of the two support plates, and the connecting rod is disposed between the pressure plate and the reinforcing rod;
[0017] The connecting rod is cylindrical in shape, and the telescopic rod is hinged to the connecting rod. The axis of the telescopic rod is perpendicular to the axis of the connecting rod.
[0018] In one embodiment, the hook is formed with a groove, the opening of which is oriented toward the reset pressure member, and the shape of the groove is adapted to the longitudinal beam at the bottom of the open wagon.
[0019] This utility model also proposes a reset structure, including a latch-assisted reset device as described in any of the above embodiments. The reset structure further includes a side wall, a small door, and a bottom longitudinal beam of the open wagon. The small door includes a door body, a hinge, and a latch. The hinge is used to press the door body, the latch is used to press the hinge, the hook is attached to the longitudinal beam, and the reset pressure member is used to press the bottom of the hinge.
[0020] According to the technical solution provided by this utility model, the latch auxiliary reset device includes a bracket, a jacking member, and a reset pressing member. The bracket includes two opposing support frames, with a hook at one end along the length of each support frame. The jacking member includes a hydraulic cylinder, a telescopic rod, and a base. The base is hinged to the two support frames on both sides. The hydraulic cylinder is mounted on the base, and the telescopic rod is mounted on the hydraulic cylinder, which drives the telescopic rod to extend away from the base. The reset pressing member is located between the hook and the base, with its two sides hinged to the two support frames. The end of the telescopic rod away from the base is hinged to the reset pressing member, which rotates the reset pressing member. In use, the hook is engaged with the longitudinal beam at the bottom of the open wagon. By driving the telescopic rod with the hydraulic cylinder, the telescopic rod pushes the end of the reset pressing member away from the bracket towards the open wagon's small door, gradually pressing the reset pressing member against the hinge at the bottom of the small door, restoring the deformed hinge to its original position, and allowing the latch to smoothly fall into the slot. This setup makes the restoration of the small door latch simple, quick, and highly accurate. By controlling the extension length of the telescopic rod, the hinge can be accurately restored to its original shape, thus reducing the labor intensity of workers and improving work efficiency. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0022] Figure 1 A schematic diagram of an embodiment of the latch auxiliary reset device provided by this utility model;
[0023] Figure 2 A partial structural schematic diagram of an embodiment of the open wagon provided by this utility model;
[0024] Figure 3 A schematic diagram of the partial structure of the buckle before it is reset in one embodiment of the reset structure provided by this utility model;
[0025] Figure 4 A schematic diagram of the structure after the buckle is reset in one embodiment of the reset structure provided by this utility model.
[0026] 100. Hook and loop fastener reset device;
[0027] 1. Bracket; 11. Support frame; 111. Hook; 112. Groove; 12. Support rod;
[0028] 2. Ejector; 21. Hydraulic cylinder; 22. Telescopic rod; 23. Base; 24. Handle; 241. Fixed section; 242. Extension section;
[0029] 3. Reset pressure piece; 31. Press-fit protrusion; 32. Support plate; 33. Pressure plate; 34. Reinforcing rod; 35. Connecting rod;
[0030] 200. Open wagon; 210. Side wall; 220. Door; 230. Hinge; 240. Fastener; 250. Hinge;
[0031] X, the length direction.
[0032] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0034] It should be noted that if the embodiments of this utility model 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.
[0035] Furthermore, if the embodiments of this utility model 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. Therefore, 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 utility model.
[0036] Open wagons are a common type of freight wagon on railways, offering advantages such as convenient loading and unloading, lower transportation costs, good ventilation, and wide applicability. They typically have small doors on their side walls for easy loading and unloading of small goods. These doors also assist in loading and unloading large goods, and facilitate access for maintenance personnel and inspection of cargo conditions during transport. During loading, unloading, and transport, the small doors may deform due to cargo compression or collisions with loading / unloading equipment. This deformation is common in open wagon operations. Therefore, when closing the small doors, it is often necessary to reset the latches to ensure a secure lock.
[0037] Normally, the repositioning of latches involves rotating the latch into its side slot so that it can press against the hinge (or the latch of the small door), thus securing the door. In practice, tools such as hammers and sticks are typically used to strike the bottom of the hinge to allow the latch to fall smoothly into the slot. However, the applicant observed that each open wagon has multiple small doors, and each freight train contains dozens of open wagons. If on-site workers were to knock or pry the latches off one by one, it would require a significant amount of labor, resulting in high work intensity. Even with the use of repositioning pliers, the lever mechanism requires the worker to hold the lever and forcefully press against the hinge during the repositioning process, further complicating the issue of high work intensity. Furthermore, the applicant found that the knocking or prying process has a degree of randomness, making it impossible to guarantee successful repositioning of the latches within a short time, thus reducing the efficiency of the latch repositioning operation.
[0038] In view of this, the present invention proposes a buckle-assisted reset device to solve or at least alleviate the above problems.
[0039] Please see Figure 1 In one embodiment of this utility model, the latch auxiliary reset device 100 includes a bracket 1, a push-in member 2, and a reset pressing member 3. The bracket 1 includes two opposing support frames 11, with a hook 111 at one end along the length direction X of each support frame 11. The push-in member 2 includes a hydraulic cylinder 21, a telescopic rod 22, and a base 23. The base 23 is hinged to the two support frames 11 on both sides. The hydraulic cylinder 21 is mounted on the base 23, and the telescopic rod 22 is mounted on the hydraulic cylinder 21. The hydraulic cylinder 21 drives the telescopic rod 22 to extend in a direction away from the base 23. The reset pressing member 3 is disposed between the hook 111 and the base 23. The reset pressing member 3 is hinged to the two support frames 11 on both sides, and the end of the telescopic rod 22 away from the base 23 is hinged to the reset pressing member 3. The telescopic rod 22 drives the reset pressing member 3 to rotate.
[0040] The latch auxiliary reset device 100 provided in this embodiment is suitable for use with... Figure 2 The structure of the open wagon 200 is shown. In use, the hook 111 engages with the longitudinal beam at the bottom of the open wagon 200. The hydraulic cylinder 21 drives the telescopic rod 22 to extend. As the telescopic rod 22 extends, the reset pressure member 3 gradually presses against the hinge 230 at the bottom of the door 220, causing the deformed hinge 230 to gradually return to its original position, ultimately allowing the latch 240 to smoothly fall into the slot. The process of the reset pressure member 3 pressing against the hinge 230 can be found in [reference needed]. Figures 3 to 4 According to the appendix Figure 2 The provided open wagon 200 has a hinge 230 that can rotate around its top hinge 250. By inserting the bottom of the hinge 230 between the latch 240 and the slot, the latch 240 and the hinge 250 are engaged, pressing the hinge 230 against the door body 220, thereby reinforcing the door body 220.
[0041] The technical solution of this embodiment employs a pusher 2 with a hydraulic cylinder 21, enabling the reset clamp 3 to easily press the hinge 230, thus facilitating the closure of the latch 240. Therefore, the latch auxiliary reset device 100 provided in this embodiment significantly reduces the labor intensity of the operator, eliminating the need for the operator to use their own strength to press the hinge 230. Simultaneously, by controlling the extension length of the telescopic rod 22, the hinge 230 can be accurately restored to its original shape, thereby reducing the labor intensity of the worker and improving work efficiency.
[0042] The jacking component 2 can be implemented in various ways. In this embodiment, the jacking component 2 is a jack. The jacking component 2 also includes a handle 24, which is mounted on the base 23. Pressing the handle 24 can drive the telescopic rod 22 to extend out of the hydraulic cylinder 21. The model and size of the jack can be selected according to the actual working conditions. One end of the handle 24 is hinged to the base 23, and the other end is a free end. A small piston is set between the two ends. The operator can drive the rod to extend out of the hydraulic cylinder 21 by rocking the handle 24 up and down. The rocker arm drives the small piston in the jack to reciprocate, thereby causing the hydraulic oil to gradually push the telescopic rod 22 out. A pressure relief valve is also provided on the base 23. By rotating the valve counterclockwise, the force applied to the telescopic rod 22 by the hydraulic oil can be reduced or eliminated, thereby facilitating the retraction of the telescopic rod 22 into the hydraulic cylinder 21.
[0043] In other embodiments, the jacking member 2 is a single-rod double-acting hydraulic cylinder 21. Hydraulic oil is supplied to the hydraulic cylinder 21 by a hydraulic pump, thereby allowing the telescopic rod 22 to extend out of the hydraulic cylinder 21 to drive the reset pressure member 3 to rotate. It should be understood that the specific implementation type of the jacking member 2 can be selected according to the actual situation at the station site, and is not limited to the two implementation forms provided above.
[0044] In one embodiment of this utility model, the grip 24 includes a fixed section 241 and an extension section 242. The fixed section 241 is mounted on the base 23, and the extension section 242 is detachably mounted on the fixed section 241. Please refer to [link / reference]. Figure 1 The extension section 242 can be directly inserted into the fixed section 241. The function of the extension section 242 is to increase the overall length of the handle 24 for easier gripping by the operator. The fixed section 241 can be made of steel pipe and has a insertion cavity for the extension section 242 to be inserted into. The extension section 242 can be made of one of the following materials: wood, steel, or plastic.
[0045] In one embodiment of this utility model, please refer to Figure 1 The bracket 1 also includes at least one support rod 12, with both ends of the support rod 12 respectively installed on opposite sides of the two support frames 11. In this embodiment, the support frame 11 is made of steel plate, and the two support frames 11 are arranged in parallel opposite directions to provide sufficient support surface for the installation of the jacking member 2 and the reset pressure member 3. The support rod 12 is provided between the two support frames 11 to support and reinforce them. The position of the support rod 12 should be such that it does not hinder the rotation of the jacking member 2 and the reset pressure member 3. In this embodiment, the support rod 12 is provided between two hooks 111, and the number of support rods is two.
[0046] In one embodiment of this utility model, the hinge joint between the reset pressure member 3 and the support frame 11 is defined as the pressure member connection part; a pressing protrusion 31 is provided at the end of the reset pressure member 3 away from the pressing member connection part, and the pressing protrusion 31 protrudes towards the side opposite to the base 23. Please refer to Figure 1 , Figure 3 and Figure 4 The pressing protrusion 31 protrudes towards the hinge 230. The purpose of the pressing protrusion 31 is to increase the contact area between the reset pressing member 3 and the hinge 230, so as to avoid excessive pressure on the hinge 230 and cause local deformation. In addition, the pressing protrusion 31 can also reduce the overall rotation stroke of the reset pressing member 3, thereby improving the working efficiency of the latch 240 reset operation.
[0047] Further, please refer to Figure 1In one embodiment of this utility model, the reset pressure member 3 includes a pressure plate 33 and two opposing support plates 32. The two ends of the pressure plate 33 are respectively connected to the ends of the two support plates 32 away from the support frame 11. The pressure plate 33 and the ends of the support plates 32 away from the support frame 11 combine to form a pressing protrusion 31. The side of the support plate 32 facing the support frame 11 is hinged to the support frame 11. In this embodiment, both the support plate 32 and the pressure plate 33 are made of steel plates through processes such as cutting, welding, and grinding. The support plate 32 is L-shaped, and its short side is connected to the pressure plate 33 to form the pressing protrusion 31. This design results in a smaller overall weight for the reset pressure member 3 and a simpler structure, facilitating mass production.
[0048] Furthermore, in one embodiment of this utility model, the reset pressure member 3 also includes a reinforcing rod 34. The two ends of the reinforcing rod 34 are respectively installed on opposite sides of the two support plates 32, and the reinforcing rod 34 is disposed between the two pressure member connecting parts. The part connecting the support plate 32 and the support frame 11 is the pressure member connecting part. Since there are two support plates 32 and two support frames 11, there are two pressure member connecting parts. The reinforcing rod 34 is installed between the two pressure member connecting parts to improve the stability of the hinge connection between the support plate 32 and the support frame 11, and to prevent the two support plates 32 from deforming towards each other under external force, thus affecting the hinge state between the support plate 32 and the support frame 11.
[0049] Furthermore, in one embodiment of this utility model, the reset pressure member 3 further includes a connecting rod 35. The two ends of the connecting rod 35 are respectively installed on opposite sides of the two support plates 32, and the connecting rod 35 is positioned between the pressure plate 33 and the reinforcing rod 34. The connecting rod 35 is cylindrical in shape, and the telescopic rod 22 is hinged to the connecting rod 35. The axis of the telescopic rod 22 is perpendicular to the axis of the connecting rod 35. The two ends of the connecting rod 35 are respectively installed on opposite sides of the two support plates 32, enabling the connecting rod 35 to provide support and reinforcement for the two support plates 32. In this embodiment, a circular hole is provided at the end of the telescopic rod 22, through which the connecting rod 35 passes, thus completing the hinge connection between the two. Compared to using an external structure to complete the hinge connection, this connection method is more stable and durable, and the structure is simple and less prone to damage.
[0050] In one embodiment of this utility model, the hook 111 has a groove 112, the opening of which faces the reset pressure member 3. The shape of the groove 112 is adapted to the longitudinal beam at the bottom of the open wagon 200. The hook 111 is used to hook onto the longitudinal beam. In order for the latch-assisted reset device 100 to be stably hooked onto the longitudinal beam, the shape of the groove 112 needs to match the longitudinal beam. Here, the longitudinal beam refers to the lower side beam at the bottom of the side wall 210 of the open wagon 200.
[0051] This utility model also proposes a reset structure, which includes a latch-assisted reset device 100. The specific structure of the latch-assisted reset device 100 is as described in the above embodiments. Since this reset structure adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here. The reset structure also includes the side wall 210 of the open wagon 200, a small door, and a bottom longitudinal beam. The small door includes a door body 220, a hinge 230, and a latch 240. The hinge 230 is used to press against the door body 220, and the latch 240 is used to press against the hinge 230. A hook 111 is attached to the longitudinal beam, and a reset pressing member 3 is used to press the bottom of the hinge 230. In use, the latch-assisted reset device 100 is hooked onto the open wagon 200, and the reset pressing member 3 is driven by the jacking member 2 to press the bottom of the hinge 230, thereby resetting the latch 240. After the latch 240 has been reset, the longitudinal beam is disengaged from the groove 112 in the hook 111 to remove the latch auxiliary reset device 100 from the open wagon 200.
[0052] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A latch-assisted reset device, characterized in that, include: The bracket includes two opposing support frames, and a hook is provided at one end of each support frame along its length. The jacking member includes a hydraulic cylinder, a telescopic rod, and a base. The two sides of the base are respectively hinged to the two support frames. The hydraulic cylinder is mounted on the base, and the telescopic rod is mounted on the hydraulic cylinder. The hydraulic cylinder is used to drive the telescopic rod to extend in a direction away from the base. A reset pressure member is disposed between the hook and the base. The two sides of the reset pressure member are respectively hinged to the two support frames. The end of the telescopic rod away from the base is hinged to the reset pressure member. The telescopic rod is used to drive the reset pressure member to rotate.
2. The latch-assisted reset device as described in claim 1, characterized in that, The jacking component is a jack, and the jacking component also includes a handle, which is installed on the base. Pressing the handle can drive the telescopic rod to extend out of the hydraulic cylinder.
3. The latch-assisted reset device as described in claim 2, characterized in that, The grip bar includes a fixed section and an extension section, the fixed section being mounted on the base, and the extension section being detachably mounted on the fixed section.
4. The latch-assisted reset device as described in claim 1, characterized in that, The bracket also includes at least one support rod, with both ends of the support rod respectively installed on one side of the two support frames that are arranged opposite each other.
5. The latch-assisted reset device as described in claim 1, characterized in that: the hinge joint between the reset pressure member and the support frame is defined as the pressure member connection part; The reset pressure member has a pressing protrusion at one end away from the pressure member connection portion, and the pressing protrusion protrudes toward the side opposite to the base.
6. The latch-assisted reset device as described in claim 5, characterized in that, The reset pressure member includes a pressure plate and two opposing support plates. The two ends of the pressure plate are respectively connected to the ends of the two support plates away from the support frame. The pressure plate and the ends of the support plates away from the support frame are combined to form the pressing protrusion. The side of the support plate facing the support frame is hinged to the support frame.
7. The latch-assisted reset device as described in claim 6, characterized in that, The reset pressure member also includes a reinforcing rod, the two ends of which are respectively installed on opposite sides of the two support plates, and the reinforcing rod is disposed between the two pressure member connecting parts.
8. The latch-assisted reset device as described in claim 7, characterized in that, The reset pressure member also includes a connecting rod, the two ends of which are respectively installed on opposite sides of the two support plates, and the connecting rod is disposed between the pressure plate and the reinforcing rod; The connecting rod is cylindrical in shape, and the telescopic rod is hinged to the connecting rod. The axis of the telescopic rod is perpendicular to the axis of the connecting rod.
9. The latch-assisted reset device as described in claim 1, characterized in that, The hook has a groove with the opening facing the reset pressure member, and the shape of the groove is adapted to the longitudinal beam at the bottom of the open wagon.
10. A reset structure, characterized in that, The device includes the latch-assisted reset device as described in any one of claims 1 to 9, wherein the reset structure further includes the side wall of the open wagon, a small door and a bottom longitudinal beam, the small door includes a door body, a hinge and a latch, the hinge is used to press the door body, the latch is used to press the hinge, the hook is attached to the longitudinal beam, and the reset pressure member is used to press the bottom of the hinge.