A turnout wooden sleeper test-laying gasket fixing tool

Abstract

The utility model belongs to railway turnout technical field especially relates to a fixed frock of pad for turnout wooden sleeper test paving. It includes: locking piece, locking piece includes the locking head and locking connecting portion that connect gradually along its axial direction, the outside diameter size of locking head is greater than the outside diameter size of locking connecting portion, locking connecting portion is used for with turnout wooden sleeper locking fixed; Sleeve, sleeve is covered in locking piece's locking connecting portion; Elastic member, elastic member is covered in locking piece's locking connecting portion and is located between locking head and sleeve. The fixed frock of each component can be split dismounting, flexible combination, if single component appears abrasion or damage, can be replaced alone, need not to scrap whole frock, not only maintenance is convenient, still can significantly prolong frock overall life, simultaneously, spare part can be reused, greatly reduces the material consumption and purchase cost in test paving process, realizes " once making, cyclic use " truly, accords with the recycling economy idea, greatly reduces test paving cost.

Description

Technical Field

[0001] This utility model belongs to the field of railway turnout technology, and in particular relates to a tooling for fixing a pad for trial laying of turnout wooden sleepers. Background Technology

[0002] With the continuous advancement of high-speed railway construction in my country, the level of turnout manufacturing technology has significantly improved. It not only meets domestic rail transit needs but also occupies an increasingly important share in overseas markets. High-speed turnout manufacturing technology has joined the ranks of international advanced technologies and is expanding globally. Against this backdrop, winning the recognition of overseas owners through high-quality and efficient turnout production has become a key industry objective. The in-factory trial installation before turnout products leave the factory is a crucial step in identifying assembly deviations, verifying product compatibility, and ensuring on-site installation quality, making its importance increasingly prominent.

[0003] However, there are fundamental differences in turnout standards among railway systems around the world: key parameters such as track gauge, turnout number, and rail type vary greatly, and the corresponding turnout designs, laying processes, and maintenance requirements are also different. This means that turnout factory trial laying operations need to be carried out separately for each country's standards.

[0004] Currently, the common practice in trial track laying is to use the turnout's own matching pad and fasteners for fixing – that is, directly using the turnout pad and fasteners from the turnout to be shipped to complete the trial laying and fixing. This method has obvious drawbacks: after the trial laying, the fasteners need to be removed from the turnout for recycling. During the process, thread wear and structural deformation are easily caused by disassembly and assembly operations. Most fasteners cannot be reused for trial laying of other standard turnouts and can only be scrapped or left idle, which not only causes serious waste of resources, but also significantly increases the material procurement and inventory management costs of trial laying.

[0005] Based on this, the present invention provides a novel fixture for fixing a pad for trial laying of turnout wooden sleepers, in order to overcome the above-mentioned defects. Utility Model Content

[0006] The purpose of this utility model is to provide a fixture for fixing pads for trial laying of turnout sleepers. The components of this fixture can be disassembled and flexibly combined. If a single component is worn or damaged, it can be replaced individually without scrapping the entire fixture. This not only makes maintenance convenient but also significantly extends the overall service life of the fixture. At the same time, the parts can be reused, greatly reducing material consumption and procurement costs during the trial laying process. This truly achieves "one-time production, circular use," which is in line with the concept of circular economy and significantly reduces the cost of trial laying.

[0007] This utility model adopts the following technical solution: a fixture for fixing a pad for trial laying of turnout sleepers, comprising:

[0008] A locking component, comprising a locking head and a locking connecting portion connected sequentially along its axial direction, wherein the outer diameter of the locking head is larger than the outer diameter of the locking connecting portion, and the locking connecting portion is used to lock and fix with a turnout sleeper;

[0009] A sleeve, which is fitted onto the locking connection portion of the locking member;

[0010] An elastic element is sleeved on the locking connection portion of the locking element and located between the locking head and the sleeve.

[0011] Furthermore, the elastic element is configured to be compressed when the locking element is locked, thereby applying an elastic clamping force to the turnout pad through the sleeve.

[0012] Furthermore, the locking connection part has external threads on its outer periphery.

[0013] Furthermore, the locking element is a screw or bolt.

[0014] Furthermore, the inner diameter of the sleeve is adapted to the outer diameter of the locking connection of the locking member, and the outer diameter of the sleeve is larger than the mounting hole diameter of the turnout pad.

[0015] Furthermore, the sleeve is in the shape of a hollow cylinder.

[0016] Furthermore, the outer peripheral wall of the sleeve near the locking head extends outward to form a boss structure.

[0017] Furthermore, the locking element is a one-piece structure.

[0018] Furthermore, the locking member also includes an intermediate connecting portion, which is located between the locking head and the locking connecting portion, and the sleeve is sleeved on the intermediate connecting portion of the locking member.

[0019] Furthermore, the elastic element is a spring or a spring bar.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] In this utility model, the turnout sleeper trial laying pad fixing fixture is used by first placing the turnout pad above the mounting hole of the turnout sleeper; then, the elastic element and the sleeve are sequentially fitted onto the locking connection part of the locking element, and then the locking connection part of the locking element is passed through the mounting hole of the turnout pad until it is inserted into the mounting hole of the turnout sleeper, thus finally achieving a locking connection with the turnout sleeper.

[0022] As the locking mechanism continues to tighten, the locking head moves downwards towards the sleeve, compressing the elastic element between it and the sleeve. The compressed elastic element generates a continuous axial reaction force: this force pushes the locking head upwards and is transmitted downwards through the sleeve to the turnout pad, ultimately pressing the turnout pad firmly against the surface of the turnout sleeper, thus securing the turnout pad. The entire fixture's tightness is maintained by the elastic element, always remaining in an "elastic clamping" mode.

[0023] This utility model discloses a fixture for fixing a turnout sleeper during trial laying. The fixture has a simple structure, requiring only three steps for assembly: "sleeving the component—inserting it into the hole—tightening." This significantly simplifies the installation process and effectively accelerates the trial laying pace within the turnout factory. Furthermore, each component can be disassembled and flexibly combined. If a single component is worn or damaged, it can be replaced individually without scrapping the entire fixture, making maintenance convenient and significantly extending the overall service life of the fixture. Simultaneously, the continuous elastic clamping pressure provided by the elastic component ensures a tighter fit between the turnout pad and the turnout sleeper, effectively resisting vibrations and loads during trial laying and preventing the turnout pad from shifting. This ensures both effective fixing and more accurate simulation of operating conditions during trial laying. In addition, the sleeve in this fixing fixture can be used separately from the turnout pad. When using it, a suitable sleeve can be selected according to the size of the turnout pad. Combined with the reusable nature of the components, this significantly reduces material consumption and procurement costs during trial laying, truly achieving "one-time production, circular use," conforming to the concept of a circular economy and greatly reducing trial laying costs. Attached Figure Description

[0024] 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 these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of the tooling for fixing the turnout sleeper during trial laying in a specific embodiment of this utility model.

[0026] Figure 2 for Figure 1 Schematic diagram of the central locking component;

[0027] Among them: locking part 1, locking head 10, locking connection part 11, intermediate connection part 12; sleeve 2, inner hole diameter 20, boss structure 21; elastic part 3; turnout sleeper 4; turnout pad 5. Detailed Implementation

[0028] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] The following is in conjunction with the appendix Figures 1 to 2 The present invention will be described in detail with reference to specific embodiments:

[0030] like Figures 1 to 2 As shown, this utility model provides a fixture for fixing a pad for trial laying of turnout wooden sleepers, which includes:

[0031] The locking component 1 includes a locking head 10 and a locking connecting part 11 connected in sequence along its axial direction. The outer diameter of the locking head 10 is larger than the outer diameter of the locking connecting part 11. The locking connecting part 11 is used to lock and fix with the turnout sleeper. In this embodiment, the locking component 1 is an integral structure, which is simple in structure and convenient to manufacture.

[0032] Sleeve 2, which is sleeved on the locking connection part 11 of the locking member 1;

[0033] The elastic element 3 is sleeved on the locking connection part 11 of the locking element 1 and located between the locking head 10 and the sleeve 2, so that the two ends of the elastic element 3 abut against the locking head 10 and the sleeve 2 respectively.

[0034] Specifically, the elastic element 3 is configured to be compressed when the locking element 1 is locked, applying elastic clamping pressure to the turnout pad 5 through the sleeve 2. During the trial laying process, the turnout sleeper 4 may undergo slight deformation or settlement due to changes in humidity, temperature, or load. If rigidly fixed, such slight deformation could cause the fasteners to loosen or the turnout pad 5 to become suspended. However, by applying elastic clamping pressure through the elastic element 3, once slight relaxation occurs, the pre-compressed elastic element 3 will further release its deformation, automatically compensating for this gap and continuing to effectively compress the turnout pad 5, thereby avoiding frequent re-tightening. In addition, the elastic clamping pressure can effectively absorb and offset the vibration and impact loads from the rail, firmly "locking" the turnout pad 5 onto the turnout sleeper 4, providing a reliable foundation platform for accurate measurement and long-term maintenance of the trial laying state. In this embodiment, the elastic element 3 can be a spring or a spring bar structure, which can be selected by those skilled in the art based on the actual situation.

[0035] In this utility model, the turnout sleeper trial laying pad fixing fixture is used by first placing the turnout pad 5 above the mounting hole of the turnout sleeper 4; then, the elastic element 3 and the sleeve 2 are sequentially fitted onto the locking connection part 11 of the locking element 1, and then the locking connection part 11 of the locking element 1 is passed through the mounting hole of the turnout pad 5 until it is inserted into the mounting hole of the turnout sleeper 4, thus finally achieving a locking connection with the turnout sleeper 4.

[0036] As the locking element 1 is continuously tightened, the locking head 10 moves downward toward the sleeve 2, thereby compressing the elastic element 3 between it and the sleeve 2. The compressed elastic element 3 generates a continuous axial reaction force: this force pushes the locking head 10 upward on one hand, and is transmitted downward through the sleeve 2 to the turnout pad 5 on the other hand, ultimately pressing the turnout pad 5 firmly onto the surface of the turnout sleeper 4, thus completing the fixation of the turnout pad 5. The entire fixture is maintained in a "flexible clamping" mode by the elastic element.

[0037] This utility model discloses a fixture for fixing a turnout sleeper during trial laying. The fixture has a simple structure, requiring only three steps for assembly: "sleeving the component—inserting it into the hole—tightening and fixing." This significantly simplifies the installation process and effectively accelerates the trial laying pace within the turnout factory. Furthermore, each component can be disassembled and flexibly combined. If a single component is worn or damaged, it can be replaced individually without scrapping the entire fixture, making maintenance convenient and significantly extending the overall service life of the fixture. Simultaneously, the continuous elastic clamping pressure provided by the elastic element 3 allows the turnout pad 5 to fit more tightly against the turnout sleeper 4, effectively resisting vibrations and loads during trial laying and preventing displacement of the turnout pad 5. This ensures a secure fixation and makes the simulation of working conditions during trial laying more accurate. In addition, the sleeve 2 in this fixing fixture can be used separately from the turnout pad 5. When using it, a suitable sleeve 2 can be selected according to the size of the turnout pad 5. Combined with the reusable nature of the components, this significantly reduces material consumption and procurement costs during trial laying, truly achieving "one-time production, circular use," conforming to the concept of a circular economy and greatly reducing trial laying costs.

[0038] Furthermore, in some specific embodiments, the locking connection part 11 is provided with an external thread on its outer periphery; correspondingly, the mounting hole of the turnout sleeper 4 is provided with an internal thread that matches the external thread. In use, it is only necessary to align the external thread of the locking connection part 11 with the internal thread of the mounting hole of the turnout sleeper 4 and screw it in to achieve thread locking and fixation of the two. The connection method is simple and reliable.

[0039] Preferably, the outer periphery of the locking connection 11 has a coarse-tooth triangular external thread. The triangular thread has a self-locking characteristic, which can effectively resist the vibration load during the trial laying process and prevent the locking connection 11 from loosening.

[0040] More specifically, in this embodiment, the locking component 1 can be a screw or bolt, etc. Screws and bolts are common standardized parts in the mechanical field, which can reduce costs.

[0041] Furthermore, in some specific embodiments, the inner diameter 20 of the sleeve 2 is adapted to the outer diameter of the locking connection portion 11 of the locking member 1, and the outer diameter of the sleeve 2 is larger than the mounting hole diameter of the turnout pad 5. In use, by replacing the sleeve 2 with different outer diameters, it is possible to adapt to turnout pads 5 of different national standards and with different mounting hole diameters, thereby improving versatility.

[0042] In this embodiment, the sleeve 2 is a hollow column, and the outer peripheral wall of the sleeve 2 near the locking head 10 extends outward to form a boss structure 21. The boss structure 21 forms an annular platform larger than the outer diameter of the sleeve 2. This platform provides a stable support for the end of the elastic element 3, ensuring that the elastic element 3 is always precisely constrained in the designed installation position. During the screwing of the locking element 1, when the elastic element 3 is compressed, its end will press tightly against the boss structure 21, preventing it from sliding outward from the sleeve 2 due to force, ensuring that the force is transmitted linearly along the axial direction, and improving the reliability and stability of the operation.

[0043] Furthermore, in some specific embodiments, the locking member 1 further includes an intermediate connecting portion 12, which is located between the locking head 10 and the locking connecting portion 11, and the sleeve 2 is fitted onto the intermediate connecting portion 12 of the locking member 1. The sleeve 2 and the intermediate connecting portion 12 cooperate to form a force-bearing area; the locking connecting portion 11 is threadedly connected to the turnout sleeper 4 to form a locking area, thus completely separating the force-bearing area from the locking area, fundamentally protecting the threads from damage. If the sleeve 2 is directly fitted onto the locking connecting portion 11 with external threads, during tightening and vibration, the inner wall of the sleeve 2 will continuously rub and squeeze against the crest of the threads, causing the threads to be "roughened," worn, or even jammed, seriously affecting disassembly and reuse.

[0044] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.

Claims

1. A fixture for fixing a pad for trial laying of turnout sleepers, characterized in that: It includes: A locking component, comprising a locking head and a locking connecting portion connected sequentially along its axial direction, wherein the outer diameter of the locking head is larger than the outer diameter of the locking connecting portion, and the locking connecting portion is used to lock and fix with a turnout sleeper; A sleeve, which is fitted onto the locking connection portion of the locking member; An elastic element is sleeved on the locking connection portion of the locking element and located between the locking head and the sleeve.

2. The fixture for fixing the pad for trial laying of turnout sleepers according to claim 1, characterized in that: The elastic element is configured to be compressed when the locking element is locked, thereby applying an elastic clamping force to the turnout pad through the sleeve.

3. The fixture for fixing the pad for trial laying of turnout sleepers according to claim 1, characterized in that: The locking connection part has external threads on its outer periphery.

4. The fixture for fixing the pad for trial laying of turnout sleepers according to claim 1, characterized in that: The locking element is a screw or bolt.

5. The fixture for fixing the pad for trial laying of turnout sleepers according to claim 1, characterized in that: The inner diameter of the sleeve is adapted to the outer diameter of the locking connection of the locking member, and the outer diameter of the sleeve is larger than the mounting hole diameter of the turnout pad.

6. The fixture for fixing the pad for trial laying of turnout sleepers according to claim 5, characterized in that: The sleeve is in the shape of a hollow column.

7. The fixture for fixing the pad for trial laying of turnout sleepers according to claim 5, characterized in that: The outer peripheral wall of the sleeve near the locking head extends outward to form a boss structure.

8. The fixture for fixing the pad for trial laying of turnout sleepers according to claim 1, characterized in that: The locking component is a one-piece structure.

9. The fixture for fixing the pad for trial laying of turnout sleepers according to claim 1, characterized in that: The locking component further includes an intermediate connecting portion, which is located between the locking head and the locking connecting portion, and the sleeve is fitted onto the intermediate connecting portion of the locking component.

10. The fixture for fixing the pad for trial laying of turnout sleepers according to claim 1, characterized in that: The elastic element is a spring or a spring bar.

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