Fastener convenient to maintain for rail transit engineering

Abstract

The utility model relates to the technical field of rail traffic engineering, and discloses a fastener convenient to maintain for rail traffic engineering, which comprises a rail and bases arranged on two sides of the rail, and further comprises pressing plates movably arranged on the surfaces of the bases, screw rods are movably connected in the bases, the surfaces of the screw rods are in threaded connection with nuts, and the pressing plates are arranged on the surfaces of the screw rods. A fixing groove is formed in the surface of the pressing plate; the compression spring is matched with the protection disc, so that the side edge of the nut can be blocked, dust and other foreign matters are prevented from being adhered to the surface of the nut to influence that an auxiliary tool is clamped on the surface of the nut, and the nut is convenient to rotate, so that the fastener is more convenient to maintain, the maintenance efficiency is improved, and the service life of the fastener is prolonged. And meanwhile, the nut can be secondarily fixed through cooperation of the positioning ring and the teeth, the rail fixing effect of the fastener is further improved, and the problem that when an existing fastener is used, foreign matter affects maintenance of the fastener is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transit engineering, in particular to a fastener for rail transit engineering which is easy to maintain. Background Art

[0002] Traditional traffic track fasteners are rail clamps, which are mainly made by fastening the two sides of the rails to the sleepers on both sides of the rails with metal-supported reinforcement devices. Because the sleepers are fastened in the railway track buried at the bottom of the track, fastening screws are inserted into the upper end of the fasteners. By fixing the screws inside the train track or on the sleepers and tightening them, the two sides of the rails are tightly fixed without shaking, and the same type of fasteners are set at equal distances.

[0003] When the existing rail clamps are in use, the nuts of the rail clamps need to be regularly maintained and tightened to keep the rail clamp in position on the rail. However, most rail clamps are installed outdoors. Outdoor installation will cause the surface of the nut of the rail clamp to be contaminated with various dust and foreign matter, which makes it inconvenient for workers to use auxiliary tools to cover the surface of the nut. The nut needs to be cleaned first, which makes the maintenance of the fastener inconvenient and affects the maintenance efficiency of the fastener. Utility Model Content

[0004] The purpose of the utility model is to provide a fastener for rail transit engineering that is easy to maintain, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a fastener for rail transit engineering that is easy to maintain, comprising a rail and a base arranged on both sides thereof, and also comprising:

[0006] A pressing plate is movable on the surface of the base, a screw is movably connected inside the base, a nut is threadedly connected on the surface of the screw, and a fixing groove is opened on the surface of the pressing plate;

[0007] A movable disk slides in the inner cavity of the fixed groove, the top of the movable disk is fixedly connected with a protective disk, the bottom of the movable disk is fixedly connected with a compression spring, the inner wall of the movable disk is fixedly connected with teeth, the bottom of the nut is fixedly connected with a positioning ring, and the inner wall of the fixed groove is provided with a movable groove.

[0008] Preferably, the surface of the protective plate is slidably connected to the inner wall of the fixing groove, and the surface of the protective plate is designed as an inclined structure.

[0009] Preferably, the inner wall of the protective plate is movably connected to the surface of the nut, and the top of the protective plate and the top of the nut are on the same horizontal line.

[0010] Preferably, there are several teeth, which are distributed in a circular array at the center of the movable disk. The positioning ring is movably connected to the surface of the screw rod, and the surface of the positioning ring is slidably connected to the surface of the teeth.

[0011] Preferably, a guide groove is provided in the inner cavity of the fixed groove, a guide block is slidably connected to the inner cavity of the guide groove, and a surface of the guide block is slidably connected to a surface of the movable disk.

[0012] Preferably, the number of the compression springs and the guide grooves are both four, and they are all distributed in a ring array at the center of the fixed groove, and the compression springs and the guide grooves are designed in a staggered structure.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model can block the side of the nut through the cooperation of the compression spring and the protective plate, so as to prevent dust and other foreign matter from adhering to the surface of the nut and affecting the auxiliary tool being stuck on the surface of the nut. It is also more convenient to rotate the nut, thereby making the fastener more convenient to maintain and effectively improving the maintenance efficiency. At the same time, the cooperation of the positioning ring and the teeth can also perform secondary fixation on the nut, further improving the fixing effect of the fastener on the track, and solving the problem that foreign matter affects the maintenance of the fastener when the existing fastener is in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 It is a schematic diagram of a partial three-dimensional structure in the utility model;

[0017] Figure 3 It is a schematic diagram of a partial three-dimensional cross-sectional structure in the utility model;

[0018] Figure 4 It is a schematic diagram of a partial three-dimensional cross-section structure developed from another viewing angle in the utility model;

[0019] Figure 5 It is a schematic diagram of a partial three-dimensional cross-section structure of the present invention.

[0020] In the figure: 1. track; 2. base; 3. pressure plate; 4. screw; 5. nut; 6. fixing groove; 7. movable plate; 8. protective plate; 9. compression spring; 10. teeth; 11. positioning ring; 12. movable groove; 13. guide groove; 14. guide block. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-5As shown, a fastener for rail transit engineering that is easy to maintain includes a rail 1, a base 2 is provided on both sides of the rail 1, the base 2 is welded or concreted on the surface of the foundation, a pressure plate 3 is movably connected to the surface of the base 2, a screw 4 is movably connected inside the base 2, a nut 5 is threadedly connected to the surface of the screw 4, and the base 2 and the pressure plate 3 can be squeezed and limited with the cooperation of the screw 4 and the nut 5, so that the pressure plate 3 can squeeze the rail 1, so that the fastener can limit the rail 1, thereby improving the stability of the rail 1 when in use, a fixing groove 6 is provided on the surface of the pressure plate 3, a movable disk 7 is slidably connected to the inner cavity of the fixing groove 6, a protective disk 8 is fixedly connected to the top of the movable disk 7, and the surface of the protective disk 8 is connected to the inner wall of the fixing groove 6 The surface of the protective plate 8 is designed as an inclined structure, and the bottom of the movable plate 7 is fixedly connected with a compression spring 9. Under the action of the compression spring 9, the movable plate 7 can drive the protective plate 8 to block the surface of the nut 5, so as to prevent the surface of the nut 5 from being contaminated with more foreign matter and affecting the subsequent maintenance of the nut 5 by the staff, and under the action of the shape of the protective plate 8, the foreign matter can also be guided, so that the foreign matter will not stay on the surface of the protective plate 8 for a long time, which effectively improves the cleanliness of the protective plate 8. When the nut 5 needs to be tightened, the protective plate 8 and the movable plate 7 can be squeezed to enter the interior of the fixed groove 6 without affecting the tightening effect of the nut 5. The inner wall of the protective plate 8 is movably connected to the surface of the nut 5, and the top of the protective plate 8 is The top of the nut 5 is at the same horizontal line as the top of the nut 5, under this action, the protection effect of the fixing groove 6 of the nut 5 can be further improved, and the contact between foreign matter and the side wall of the nut 5 can be reduced. The inner wall of the movable disk 7 is fixedly connected with teeth 10. The number of teeth 10 is several, and they are all distributed in a ring array at the center of the movable disk 7. The bottom of the nut 5 is fixedly connected with a positioning ring 11, and the positioning ring 11 is movably connected to the surface of the screw 4. The surface of the positioning ring 11 is slidably connected to the surface of the teeth 10. Under this action, when the protective disk 8 protects the nut 5, the teeth 10 can be embedded in the surface of the positioning ring 11, so that the nut 5 will not rotate easily after long-term use, which effectively improves the fastening effect of the fastener and further improves the rail 1 The fixing effect is achieved, and the number of teeth 10 can make it easier for the nut 5 to fit with the positioning ring 11 after rotation, so that the teeth 10 can be limited at various angles of the nut 5 and the positioning ring 11, thereby improving the applicability of the fastener. The inner cavity of the fixed groove 6 is provided with a guide groove 13, and the inner cavity of the guide groove 13 is slidably connected with a guide block 14. The surface of the guide block 14 is slidably connected with the surface of the movable disk 7. Under this action, the movable disk 7 can be guided when it moves, so that it can be in a stable state when moving, and it can also prevent the movable disk 7 from escaping from the inside of the fixed groove 6 and being lost, which effectively improves the applicability of the fastener. The number of compression springs 9 and guide grooves 13 are both four.And they are all distributed in a circular array at the center of the fixed groove 6. The compression spring 9 and the guide groove 13 are designed in a staggered structure. Under this action, the guide block 14 can be prevented from affecting the compression and rebound of the compression spring 9, and the force effect on the movable disk 7 can be improved, making the force on the movable disk 7 more uniform, thereby improving the stability of the movable disk 7. The inner wall of the fixed groove 6 is provided with a movable groove 12, and the surface of the movable groove 12 is slidably connected with the surface of the tooth 10. Under this action, the tooth 10 and the inner wall of the fixed groove 6 are prevented from blocking each other and affecting the movement effect of the movable disk 7. At the same time, the tooth 10 can also move in a straight line, thereby improving the stability of the movable disk 7 when moving.

[0023] It is worth noting that the technical features such as the track 1, base 2 and screw 4 proposed in this technical solution should be regarded as prior art. The specific structure, working principle and possible control method and spatial layout method of these technical features can be selected according to the conventional methods in the field, and this technical solution will not be further elaborated.

[0024] Working principle: first, place the base 2 at a position corresponding to the track 1, then use welding or cement pouring to limit the base 2, then put the screw 4 into the base 2 and put the pressure plate 3 on the surface of the screw 4. When the nut 5 is turned, the auxiliary tool will push the protective disk 8 so that it and the movable disk 7 move to the inside of the fixed groove 6. At the same time, the teeth 10 also enter the inside of the movable groove 12 and no longer contact the positioning ring 11. Then, the nut 5 and the screw 4 cooperate with each other to squeeze the track 1 through the pressure plate 3. After tightening, remove the auxiliary tool and drive the protective disk 8 to protect the nut 5 through the movable disk 7 under the action of the compression spring 9 to prevent its side wall from being contaminated by foreign matter. At the same time, the movable disk 7 will cause the teeth 10 to embed into the surface of the positioning ring 11 when moving, so as to limit the nut 5 and prevent it from rotating easily, thereby improving the fixing effect of the fastener.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fastener for rail transit engineering that is easy to maintain, comprising a rail (1) and bases (2) arranged on both sides thereof, characterized in that: Also includes: A pressure plate (3) is movable on the surface of the base (2), the base (2) is internally movably connected with a screw rod (4), the surface of the screw rod (4) is threadedly connected with a nut (5), and the surface of the pressure plate (3) is provided with a fixing groove (6); A movable disk (7) slides in the inner cavity of the fixed groove (6), the top of the movable disk (7) is fixedly connected to a protective disk (8), the bottom of the movable disk (7) is fixedly connected to a compression spring (9), the inner wall of the movable disk (7) is fixedly connected to teeth (10), the bottom of the nut (5) is fixedly connected to a positioning ring (11), and the inner wall of the fixed groove (6) is provided with a movable groove (12).

2. The fastener for rail transit engineering that is easy to maintain according to claim 1 is characterized in that: The surface of the protective plate (8) is slidably connected to the inner wall of the fixing groove (6), and the surface of the protective plate (8) is designed as an inclined structure.

3. The fastener for rail transit engineering that is easy to maintain according to claim 1 is characterized in that: The inner wall of the protective plate (8) is movably connected to the surface of the nut (5), and the top of the protective plate (8) and the top of the nut (5) are on the same horizontal line.

4. The fastener for easy maintenance of rail transit engineering according to claim 1, characterized in that: The number of teeth (10) is several and they are all distributed in a circular array at the center of the movable disk (7); the positioning ring (11) is movably connected to the surface of the screw rod (4); and the surface of the positioning ring (11) is slidably connected to the surface of the teeth (10).

5. The fastener for rail transit engineering that is easy to maintain according to claim 1 is characterized in that: The inner cavity of the fixed groove (6) is provided with a guide groove (13), the inner cavity of the guide groove (13) is slidably connected with a guide block (14), and the surface of the guide block (14) is slidably connected to the surface of the movable disk (7).

6. The fastener for rail transit engineering that is easy to maintain according to claim 5, characterized in that: The number of the compression springs (9) and the guide grooves (13) are both four, and they are all distributed in a circular array at the center of the fixed groove (6). The compression springs (9) and the guide grooves (13) are designed in a staggered structure.

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