A catenary arm bolt fastening base

Abstract

This utility model discloses a fastening base for catenary cantilever bolts, relating to the technical field of catenary cantilever bolt fastening bases. The utility model includes a main fixed base, with a base fixing screw fixedly connected to the right end of the main fixed base, a spring cylinder fixedly connected to the left end of the main fixed base, a fixing block base fixedly connected to the left end of the spring cylinder, and a spring connecting cylinder fixedly connected to the left end of the fixing block base. The hexagonal fixing head and the hexagonal hole of the connecting cylinder cooperate to maintain a good fastening effect under various working conditions, significantly improving the stability and reliability of the bolt connection, effectively reducing the workload of maintenance during catenary operation and maintenance, and improving maintenance efficiency. Furthermore, the cooperation between the first telescopic column and the first spring can more effectively buffer the pressure of different vibrations and load changes, making the stress borne by the main fixed base more evenly distributed.

Description

Technical Field

[0001] This utility model relates to the technical field of contact wire cantilever bolt fastening base, specifically a contact wire cantilever bolt fastening base. Background Technology

[0002] The overhead contact system is a high-voltage power transmission line that runs in a zigzag pattern above the rails in electrified railways, supplying current to the pantograph. It is the main framework of railway electrification engineering, a special type of power transmission line that supplies power to electric locomotives. It consists of several parts: contact suspension, support devices, positioning devices, supports, and foundations.

[0003] In overhead contact system systems, bolted connections are widely used in both rigid and flexible suspension systems, including rigid suspension devices, flexible cantilever suspensions, soft and hard cross-span suspensions, and overhead contact anchoring devices. In practical applications, bolts can easily loosen due to vibration and load variations, leading to unstable connections and consequently affecting driving safety. Summary of the Invention

[0004] Technical problems to be solved The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a fastening base for the contact wire cantilever bolt.

[0005] Technical solution: To achieve the above objectives, this utility model provides the following technical solution: a contact wire cantilever bolt fastening base.

[0006] The present invention is further configured to include a main fixed base, a base fixing screw fixedly connected to the right end of the main fixed base, a spring cylinder fixedly connected to the left end of the main fixed base, a fixing block base fixedly connected to the left end of the spring cylinder, a spring connecting cylinder fixedly connected to the left end of the fixing block base, and a secondary fixing device movably connected to the left end of the spring connecting cylinder.

[0007] As described above, the outer wall of the main fixing base is provided with a main base secondary hole, the front end outer surface of the main fixing base is threadedly connected with a main base screw, the front end outer surface of the main fixing base is fixedly connected with a main base fixing ring, and the front end outer surface of the main base fixing ring is threadedly connected with a fixing ring screw.

[0008] As described above, the outer surface of the spring connecting cylinder is provided with a connecting cylinder fixing hole, and a fixing hole screw is threadedly connected to the outer surface of the connecting cylinder fixing hole. The outer surface of the front end of the spring connecting cylinder is provided with a connecting cylinder hexagonal hole.

[0009] The aforementioned secondary fixing device includes a secondary mounting base, a secondary spring sleeve, a spring retaining ring, a spring connector, a secondary base fixing hole, and a secondary fixing post. The secondary mounting base has a secondary fixing post fixedly connected to its front outer surface, and a secondary fixing mounting hole is provided at its rear end. The secondary spring sleeve has a secondary spring sleeve fixedly connected to its front outer surface, and a spring retaining ring is threaded onto the outer surface of the secondary spring sleeve. The secondary spring sleeve has a spring connector fixedly connected to its front outer surface, and a secondary base fixing hole is provided on the outer wall of the spring connector.

[0010] As described above, a main base spring clip is fixedly connected to the lower outer surface of the spring connecting cylinder, a first telescopic column is installed on the lower outer surface of the spring connecting cylinder, a first spring is provided on the outer surface of the first telescopic column, and a main base spring buffer seat is fixedly connected to the lower outer surface of the first telescopic column.

[0011] As described above, a hexagonal fixing head is fixedly connected to the inner wall of the spring connector, a second telescopic column is installed on the lower outer surface of the secondary spring cylinder, a second spring is provided on the outer wall of the second telescopic column, a secondary base spring clip is fixedly connected to the lower outer surface of the secondary spring cylinder, and a secondary base buffer pad is provided on the lower outer surface of the second spring.

[0012] Beneficial effects: Compared with the prior art, the contact wire cantilever bolt fastening base has the following beneficial effects: I. This utility model, through the cooperation of the hexagonal fixing head and the hexagonal hole of the connecting cylinder, can maintain a good fastening effect under various working conditions, greatly improve the stability and reliability of the bolt connection, effectively reduce the workload of maintenance in the operation and maintenance of the contact network, and improve maintenance efficiency.

[0013] Second, the combination of the first telescopic column and the first spring in this utility model can more effectively buffer the pressure of different vibrations and load changes, so that the stress borne by the main fixed base is more evenly distributed.

[0014] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the main fixed base in this utility model; Figure 3 This is a schematic diagram of the secondary fixing device in this utility model; Figure 4This is a schematic diagram of the planar structure of the main fixed base in this utility model. Figure 5 This is a schematic diagram of the planar structure of the auxiliary fixing device in this utility model; In the diagram: 1. Main fixed base; 2. Spring cylinder column; 3. Fixed block base; 4. Spring connecting cylinder; 5. Base fixing screw; 6. Secondary fixing device; 7. Secondary fixing mounting hole; 8. Main base secondary hole; 9. Main base screw; 10. Main base fixing ring; 11. Fixing ring screw; 12. Connecting cylinder fixing hole; 13. Connecting cylinder hexagonal hole; 14. Fixing hole screw; 15. Secondary mounting base; 16. Secondary spring cylinder; 17. Spring fixing ring; 18. Spring connector; 19. Secondary base fixing hole; 20. Main base spring clip; 21. First telescopic column; 22. First spring; 23. Main base spring buffer seat; 24. Hexagonal fixing head; 25. Secondary base spring clip; 26. Secondary telescopic column; 27. Secondary spring; 28. Secondary base buffer pad; 29. ​​Secondary fixed column. Detailed Implementation

[0016] 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.

[0017] like Figure 1-5 As shown, this utility model provides a technical solution: a contact wire cantilever bolt fastening base, including a main fixed base 1, a base fixing screw 5 fixedly connected to the right end of the main fixed base 1, a spring cylinder 2 fixedly connected to the left end of the main fixed base 1, a fixing block base 3 fixedly connected to the left end of the spring cylinder 2, a spring connecting cylinder 4 fixedly connected to the left end of the fixing block base 3, and a secondary fixing device 6 movably connected to the left end of the spring connecting cylinder 4.

[0018] like Figure 1-2As shown, the outer wall of the main fixing base 1 has a main base auxiliary hole 8. The front outer surface of the main fixing base 1 is threaded with a main base screw 9. The front outer surface of the main fixing base 1 is fixedly connected with a main base fixing ring 10. The front outer surface of the main base fixing ring 10 is threaded with a fixing ring screw 11. The outer surface of the spring connecting cylinder 4 has a connecting cylinder fixing hole 12. The outer surface of the connecting cylinder fixing hole 12 is threaded with a fixing hole screw 14. The front outer surface of the spring connecting cylinder 4 has a connecting cylinder hexagonal hole 13. The auxiliary fixing device 6 includes an auxiliary mounting base 15, an auxiliary spring cylinder 16, a spring fixing ring 17, and a spring connector 18. The auxiliary base fixing hole 19 and the auxiliary fixing post 29 are fixedly connected to the front outer surface of the auxiliary mounting base 15. The auxiliary mounting base 15 has an auxiliary fixing mounting hole 7 at the rear end. The auxiliary spring cylinder 16 is fixedly connected to the front outer surface of the auxiliary fixing post 29. The auxiliary spring cylinder 16 is threadedly connected to the outer surface of the auxiliary spring cylinder 16. The auxiliary spring cylinder 16 has a spring retaining ring 17. The auxiliary spring cylinder 16 has a spring connector 18 fixedly connected to the front outer surface of the auxiliary spring cylinder 16. The outer wall of the spring connector 18 has an auxiliary base fixing hole 19. The spring connector 4 can effectively make the stress of the screw more uniform during use, and there is no need to manually adjust the tightness according to different loads and vibrations.

[0019] like Figure 3-5 As shown, a main base spring clip 20 is fixedly connected to the lower outer surface of the spring connecting cylinder 4. A first telescopic column 21 is installed on the lower outer surface of the spring connecting cylinder 4. A first spring 22 is provided on the outer surface of the first telescopic column 21. A main base spring buffer seat 23 is fixedly connected to the lower outer surface of the first telescopic column 21. A hexagonal fixing head 24 is fixedly connected to the inner wall of the spring connecting head 18. A second telescopic column 26 is installed on the lower outer surface of the auxiliary spring cylinder 16. A second spring 27 is provided on the outer wall of the second telescopic column 26. A secondary base spring clip 25 is fixedly connected to the lower outer surface of the auxiliary spring cylinder 16. A secondary base buffer pad 28 is provided on the lower outer surface of the second spring 27. The second spring 27 can better buffer and distribute stress.

[0020] Working principle: When using a contact wire cantilever bolt fastening base, firstly, the base fixing screw 5 is fixed to the outer wall of the main mounting rod of the contact wire via a threaded connection. Then, the spring cylinder column 2 is fixedly connected to the main fixing base 1 via the main base fixing ring 10. Align the entire main fixing base 1 with the position where the auxiliary rod needs to be connected. Insert the hexagonal fixing head 24 into the hexagonal hole 13 of the connecting cylinder. The fixing screw 14 passes through the connecting cylinder fixing hole 12 and the auxiliary base fixing hole 19 to connect the auxiliary fixing device 6 to the main fixing base 1. Finally, the auxiliary fixing device... The mounting hole 7 connects the secondary fixing device 6 to the contact wire mounting rod. Since the force received by the contact wire is all downward pressure, the internal hexagonal connection is more rigid and has a certain amount of room for movement. Furthermore, since both the main fixing base 1 and the secondary fixing device 6 have built-in springs, they have a certain degree of buffering. This can solve the problem that, in actual use, rigid suspension devices, flexible cantilever suspensions, soft and hard cross-span suspensions, and contact wire anchoring devices are prone to bolt loosening due to vibration and load changes, resulting in unstable connections and thus affecting driving safety.

[0021] It should be noted that in this document, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "fixed," "installed," "connected," and "linked" should be interpreted broadly. For example, "installed" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a mechanical connection or an electrical connection; "linked" can be a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A contact wire cantilever bolt fastening base, comprising a main fixing base (1), characterized in that: The right end of the main fixed base (1) is fixedly connected to a base fixing screw (5), the left end of the main fixed base (1) is fixedly connected to a spring cylinder column (2), the left end of the spring cylinder column (2) is fixedly connected to a fixing block base (3), the left end of the fixing block base (3) is fixedly connected to a spring connecting cylinder (4), and the left end of the spring connecting cylinder (4) is movably connected to a secondary fixing device (6).

2. The contact wire cantilever bolt fastening base according to claim 1, characterized in that: The outer wall of the main fixed base (1) is provided with a main base secondary hole (8), the front end outer surface of the main fixed base (1) is threaded with a main base screw (9), the front end outer surface of the main fixed base (1) is fixedly connected with a main base fixing ring (10), and the front end outer surface of the main base fixing ring (10) is threaded with a fixing ring screw (11).

3. The contact wire cantilever bolt fastening base according to claim 1, characterized in that: The outer surface of the spring connecting cylinder (4) is provided with a connecting cylinder fixing hole (12), and a fixing hole screw (14) is threadedly connected to the outer surface of the connecting cylinder fixing hole (12). The outer surface of the front end of the spring connecting cylinder (4) is provided with a connecting cylinder hexagonal hole (13).

4. The contact wire cantilever bolt fastening base according to claim 1, characterized in that: The secondary fixing device (6) includes a secondary mounting base (15), a secondary spring cylinder (16), a spring retaining ring (17), a spring connector (18), a secondary base fixing hole (19), and a secondary fixing post (29). The secondary mounting base (15) is fixedly connected to the outer surface of its front end with the secondary fixing post (29). The secondary mounting base (15) has a secondary fixing mounting hole (7) at its rear end. The secondary spring cylinder (16) is fixedly connected to the outer surface of its front end with the secondary fixing post (29). The outer surface of the secondary spring cylinder (16) is threaded with the spring retaining ring (17). The outer surface of the secondary spring cylinder (16) is fixedly connected to the outer surface of its front end with the spring connector (18). The outer wall of the spring connector (18) has a secondary base fixing hole (19).

5. The contact wire cantilever bolt fastening base according to claim 1, characterized in that: The lower outer surface of the spring connecting cylinder (4) is fixedly connected to the main base spring clip (20), the lower outer surface of the spring connecting cylinder (4) is equipped with a first telescopic column (21), the outer surface of the first telescopic column (21) is provided with a first spring (22), and the lower outer surface of the first telescopic column (21) is fixedly connected to the main base spring buffer seat (23).

6. The contact wire cantilever bolt fastening base according to claim 4, characterized in that: The inner wall of the spring connector (18) is fixedly connected to a hexagonal fixing head (24). The lower outer surface of the secondary spring cylinder (16) is equipped with a second telescopic column (26). The outer wall of the second telescopic column (26) is provided with a second spring (27). The lower outer surface of the secondary spring cylinder (16) is fixedly connected to a secondary base spring clip (25). The lower outer surface of the second spring (27) is provided with a secondary base buffer pad (28).

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