Urban rail transit dropper adjusting device

Abstract

The utility model discloses an urban rail transit dropper adjusting device which comprises a double-carrier-cable clamping ring, the lower portion of the double-carrier-cable clamping ring is connected with an eyebolt, the eyebolt is detachably connected with one end of a bidirectional adjusting bolt, the other end of the bidirectional adjusting bolt is detachably connected with one end of a first adjusting chain, and the other end of the first adjusting chain is detachably connected with the other end of a second adjusting chain. The first adjusting chain is also detachably connected with the second adjusting chain; the tail end of the second adjusting chain is provided with a double contact wire clamping ring. According to the utility model, the dropper is subjected to force unloading through the arrangement of the adjusting chain, and a traditional operation method that a contact line is continuously lifted by manpower is replaced; the height of the dropper is adjusted by adjusting the position, hung on the first adjusting chain, of the second adjusting chain, the height of the contact line and the height of the carrier cable are accurately adjusted through the two-way adjusting bolt, and accurate adjustment of the carrier cable and the contact line is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of adjustment auxiliary technology, specifically relating to an urban rail transit drop cable adjustment device. Background Technology

[0002] The statements herein provide only background information related to this invention and do not necessarily constitute prior art.

[0003] The dropper is a crucial component of the catenary's chain suspension system, suspending the contact wire from the catenary cable. Adjusting the length of the dropper alters the structural height and conductor height of the catenary, improving the current collection quality for electric locomotives. With the continuous increase in subway operating time, the catenary equipment experiences wear, aging, and deformation. Currently, during maintenance and replacement of droppers, manual lifting of the contact wire is typically used to relieve stress on the droppers. This requires prolonged manual labor to bear the weight of the contact wire and the lateral tension of the conductor. Furthermore, conductor rebound is prone to occur during stress relief, installation, and reinforcement, especially in high-stress areas such as curves and anchor points, posing significant safety hazards. Additionally, the installation and adjustment of droppers suffer from difficulty in maintaining precision and the need for repeated adjustments, greatly impacting maintenance and emergency repair efficiency. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a dropper adjustment device for urban rail transit. By adjusting the setting of the chain, the dropper is unloaded, replacing the traditional operation method of continuously raising the contact wire manually. The height of the dropper is adjusted by adjusting the position of the second adjusting chain suspended from the first adjusting chain, and the height of the contact wire and the catenary is precisely adjusted by the bidirectional adjusting bolts, thus ensuring the precise adjustment of the catenary and the contact wire.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0006] The present invention provides a dropper adjustment device for urban rail transit, comprising: a double-load-bearing cable clamp, the lower part of which is connected to a dropper bolt, one end of which is detachably connected to a bidirectional adjusting bolt, the other end of which is detachably connected to one end of a first adjusting chain, the first adjusting chain being detachably connected to a second adjusting chain; and a double contact wire clamp provided at the end of the second adjusting chain.

[0007] In at least one embodiment, the eye bolt and the bidirectional adjusting bolt are detachably connected at one end via a quick-connect ring.

[0008] In at least one embodiment, the other end of the bidirectional adjusting bolt is detachably connected to one end of the first adjusting chain via a quick-connect ring.

[0009] In at least one embodiment, a locking device is provided at the opening of the quick-connect ring.

[0010] In at least one embodiment, the quick-connect ring is one or more of a square quick-connect ring, an elliptical quick-connect ring, and a triangular quick-connect ring.

[0011] In at least one embodiment, a scale is provided on the inner side of the bidirectional adjusting bolt.

[0012] In at least one embodiment, the first adjusting chain and the second adjusting chain are detachably connected by a spring lock;

[0013] The spring lock is detachably mounted on the second adjusting chain; or, the spring lock is detachably mounted on the first adjusting chain.

[0014] In at least one embodiment, a locking device is provided at the opening of the spring latch.

[0015] In at least one embodiment, the first adjusting chain and / or the second adjusting chain are composed of a plurality of circular rings connected in series.

[0016] In at least one embodiment, the line spacing between the two clamps of the double-bearing cable clamp is the same as the line spacing between the two clamps of the double-contact cable clamp.

[0017] The beneficial effects of the above-described technical solution of this utility model are as follows:

[0018] 1) This utility model discloses a dropper adjustment device for urban rail transit. By setting up an adjustment chain, it replaces the traditional operation method of continuously raising the contact wire manually. The double support cable clamp is hung on the support cable, and the double contact wire clamp is hung on the contact wire. The first and second adjustment chains replace the dropper to connect the double contact wire and the double support cable, thereby relieving the tension on the dropper. The height of the dropper is adjusted by adjusting the position of the second adjustment chain suspended from the first adjustment chain, replacing the traditional method of continuously raising the contact wire manually. The height of the contact wire and the support cable is precisely adjusted by using bidirectional adjustment bolts, ensuring the precise adjustment of the support cable and the contact wire.

[0019] 2) The urban rail transit drop cable adjustment device of this utility model is simple to operate manually, can withstand continuous force, and can adjust the structural height in one step. It effectively solves the problems of continuous manual force, multiple adjustments, and slow adjustment speed during the drop cable adjustment process. It has the characteristics of small size, light weight, simple structure, easy to carry and use, low cost, and simple manufacturing. At the same time, the design of detachable connection of each component makes it easier to maintain the auxiliary device and replace the components.

[0020] 3) The urban rail transit drop cable adjustment device of this utility model is equipped with a bidirectional adjustment bolt and a scale inside the bidirectional adjustment bolt, with an accuracy of millimeter level, which can accurately adjust the height of the contact wire and the catenary.

[0021] 4) The line spacing of the two clamping rings of the double-bearing cable clamping ring of the urban rail transit dropper adjustment device of this utility model is consistent with the line spacing of the two clamping rings of the double contact line clamping ring, which can ensure that the dropper maintains a fixed line spacing during the assembly and disassembly process, and avoid the problem that the line spacing of the dropper cannot be maintained during the assembly and disassembly process. Attached Figure Description

[0022] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0023] Figure 1 This is a schematic diagram of the overall structure of a dropper adjustment device for urban rail transit according to this utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the double-bearing cable clamp 1 and the double-contact wire clamp 7 of the urban rail transit dropper adjustment device of this utility model;

[0025] Figure 3 This is a schematic diagram of the quick-connecting ring 3 of a dropper adjustment device for urban rail transit according to this utility model;

[0026] Figure 4 This is a schematic diagram of the bidirectional adjusting bolt 4 of the urban rail transit dropper adjustment device according to the present invention;

[0027] Figure 5 This is a schematic diagram of the adjusting chain of a dropper adjustment device for urban rail transit according to this utility model;

[0028] Figure 6 This is a schematic diagram of the spring lock 6 structure of a suspension cable adjustment device for urban rail transit according to this utility model.

[0029] In the diagram: 1. Double-load-bearing cable clamp; 2. Eye bolt; 3. Quick-connect ring; 4. Two-way adjusting bolt; 51. First adjusting chain; 52. Second adjusting chain; 6. Spring lock; 7. Double contact cable clamp; 8. M6 hex nut; 9. Adjusting screw; 10. Scale; 11. First locking device; 12. Second locking device; 13. Circular ring.

[0030] The distances or dimensions between parts have been exaggerated to show their positions; the diagram is for illustrative purposes only. Detailed Implementation

[0031] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0032] Terminology Explanation: The terms "installation," "connection," "linking," and "fixing" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction relationship between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0033] As described in the background section, the purpose of this utility model is to overcome the shortcomings of the prior art and provide a dropper adjustment device for urban rail transit. This device relieves the tension on the dropper by adjusting the setting of the chain, replacing the traditional method of continuously raising the contact wire manually. The height of the dropper is adjusted by adjusting the position of the second adjusting chain suspended from the first adjusting chain, and the height of the contact wire and the catenary is precisely adjusted by the bidirectional adjusting bolts, ensuring the precise adjustment of the catenary and the contact wire.

[0034] Example 1

[0035] In a typical embodiment of this utility model, such as Figures 1-6 As shown, this embodiment discloses a dropper adjustment device for urban rail transit, including: a double-bearing cable clamp 1, a dropper bolt 2 connected to the lower part of the double-bearing cable clamp 1, a dropper bolt 2 detachably connected to one end of a bidirectional adjusting bolt 4, the other end of the bidirectional adjusting bolt 4 detachably connected to one end of a first adjusting chain 51, the first adjusting chain 51 also detachably connected to a second adjusting chain 52; and a double contact wire clamp 7 is provided at the end of the second adjusting chain 52.

[0036] In this embodiment, the double catenary clamp 1 is hung on the catenary, and the double contact wire clamp 7 is hung on the contact wire. The double contact wire and the double catenary are connected by the first adjusting chain 51 and the second adjusting chain 52 instead of the dropper, thus relieving the tension on the dropper. The height of the dropper is adjusted by adjusting the connection position between the second adjusting chain 52 and the first adjusting chain 51, replacing the traditional method of continuously raising the contact wire manually. The height of the contact wire and the catenary is precisely adjusted by the bidirectional adjusting bolt 4, ensuring the precise adjustment of the catenary and the contact wire.

[0037] In this embodiment, as Figure 1 and Figure 2As shown, the eye bolt 2 and the bidirectional adjusting bolt 4 are detachably connected at one end via a quick-connect ring 3. The bolt portion of the eye bolt 2 passes through the bottom of the double-load-bearing cable clamp 1 and is fixed in place by an M6 hex nut 8. The eye portion is detachably connected to one end of the bidirectional adjusting bolt 4 via the quick-connect ring 3.

[0038] In this embodiment, the other end of the bidirectional adjusting bolt 4 is also detachably connected to one end of the first adjusting chain 51 via a quick-connect ring 3. This detachable connection via the quick-connect ring 3 facilitates the maintenance or replacement of the various components of this adjusting aid.

[0039] In this embodiment, as Figure 3 As shown, a first locking device 11 is provided at the opening of the quick-connect ring 3, which ensures the stability of the connection between the components connected by the quick-connect ring 3 and prevents the connected components from falling off the ring due to factors such as special angles or misoperation. In addition, the first locking device 11 can also increase the strength of the quick connector and prevent the quick-connect ring 3 from deforming under large forces, which would cause the opening to enlarge.

[0040] As an optional embodiment, the quick-connect ring 3 can be one or more of the following: square quick-connect ring, elliptical quick-connect ring, and triangular quick-connect ring.

[0041] In this embodiment, as Figure 4 As shown, the bidirectional adjusting bolt 4 includes two adjusting screws 9 and a hollow sleeve. The hollow sleeve has opposite threads at both ends, allowing it to engage with the two adjusting screws 9. A scale 10 is located on the inner side of the hollow sleeve. The two adjusting screws 9 are screwed into both ends of the hollow sleeve, and the height of the catenary and contact wire is adjusted by regulating the distance between the two adjusting screws 9. The scale 10 on the hollow sleeve has a millimeter-level accuracy, ensuring precise adjustment of the catenary and contact wire.

[0042] In this embodiment, the first adjusting chain 51 and the second adjusting chain 52 are detachably connected by a spring lock 6. The spring lock 6 is detachably mounted on the second adjusting chain 52. Optionally, the spring lock 6 can also be detachably mounted on the first adjusting chain 51. The connection position between the second adjusting chain 52 and the first adjusting chain 51 can be adjusted via the spring lock 6. Specifically, by adjusting the position of the spring lock 6 on the first adjusting chain 51, the distance between the double-bearing cable clamp 1 and the double-contact wire clamp 7 can be adjusted, thereby adjusting the dropper height. Furthermore, by providing the detachable spring lock 6, the position of the spring lock 6 on the second adjusting chain 52 can be adjusted first, and then the position of the spring lock 6 on the first adjusting chain 51 can be adjusted, making the dropper height adjustment more flexible and simpler. Simultaneously, the first adjusting chain 51, the second adjusting chain 52, and the spring lock 6 are suitable for various application environments with different height requirements, thus enhancing applicability.

[0043] In this embodiment, as Figure 6 As shown, a second locking device 12 is provided at the opening of the spring lock 6, which can ensure the stability and strength of the spring lock 6.

[0044] In this embodiment, as Figure 5 As shown, the first adjusting chain 51 and / or the second adjusting chain 52 are composed of several circular rings 13 connected in series. Compared with chains composed of flat long rings, chains composed of circular rings 13 make it easier to attach the spring lock 6 and simplify operation. As an optional embodiment, the diameter of the circular rings 13 can be kept consistent, such as using 30mm circular rings 13. By calculating the number of circular rings 13, the approximate adjustment data can be obtained, making the calculation work for adjusting the hanging ring simpler. Moreover, obtaining the approximate adjustment data through simple calculation can effectively reduce the number of repeated adjustments and effectively improve work efficiency.

[0045] In this embodiment, as Figure 2 As shown, the line spacing between the two clamps of the double-bearing cable clamp 1 is the same as the line spacing between the two clamps of the double-contact cable clamp 7. For example, if the line spacing between the two clamps is 40mm, it can ensure that the dropper wire maintains a fixed line spacing during the assembly and disassembly process, thus avoiding the problem that the line spacing of the dropper wire cannot be maintained during the assembly and disassembly process.

[0046] In this embodiment, the specific usage of a dropper adjustment device for urban rail transit is as follows:

[0047] (1) Hang the double-bearing cable clamp 1 on the bearing cable;

[0048] (2) Select the suspension position of the spring lock 6 on the first adjusting chain 51 according to the height of the site structure;

[0049] (3) The double contact wire clamp 7 clamps the contact wire;

[0050] (4) Make precise adjustments by adjusting the bidirectional adjusting bolt 4.

[0051] This utility model discloses a dropper adjustment device for urban rail transit. A double-feeder cable clamp 1 is hung on the feeder cable, and a double-contact wire clamp 7 is hung on the contact wire. A first adjusting chain 51 and a second adjusting chain 52 replace the dropper cable to connect the double contact wires and double feeder cables, thus relieving stress on the dropper cable. The height of the dropper cable is adjusted by changing the position of the second adjusting chain 52 suspended from the first adjusting chain 51, replacing the traditional method of continuously raising the contact wire manually. Furthermore, the height of the contact wire and feeder cable is precisely adjusted using bidirectional adjusting bolts 4, ensuring accurate adjustment of the feeder cable and contact wire.

[0052] This utility model's suspender adjustment aid is simple to operate manually, allows for continuous force application, and enables one-time height adjustment. It effectively solves the problems of continuous manual force application, multiple adjustments, and slow adjustment speed during suspender adjustment. It features small size, light weight, simple structure, and ease of carrying and use.

[0053] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A dropper adjustment device for urban rail transit, characterized in that, include: A double-load-bearing cable clamp is provided, with a lifting eye bolt connected to the lower part of the double-load-bearing cable clamp. One end of the lifting eye bolt is detachably connected to a bidirectional adjusting bolt, and the other end of the bidirectional adjusting bolt is detachably connected to one end of a first adjusting chain. The first adjusting chain is also detachably connected to a second adjusting chain. A double contact wire clamp is provided at the end of the second adjusting chain.

2. The urban rail transit dropper adjustment device as described in claim 1, characterized in that, The eye bolt and the bidirectional adjusting bolt are detachably connected at one end via a quick-connect ring.

3. The urban rail transit dropper adjustment device as described in claim 1, characterized in that, The other end of the bidirectional adjusting bolt is detachably connected to one end of the first adjusting chain via a quick-connect ring.

4. A dropper adjustment device for urban rail transit as described in any one of claims 2 or 3, characterized in that, A locking device is provided at the opening of the quick-connect ring.

5. A dropper adjustment device for urban rail transit as described in any one of claims 2 or 3, characterized in that, The quick-connect ring is one or more of the following: square quick-connect ring, elliptical quick-connect ring, and triangular quick-connect ring.

6. The urban rail transit dropper adjustment device as described in claim 1, characterized in that, A scale is provided on the inside of the bidirectional adjusting bolt.

7. The urban rail transit dropper adjustment device as described in claim 1, characterized in that, The first adjusting chain and the second adjusting chain are detachably connected by a spring lock. The spring lock is detachably mounted on the second adjusting chain; or, the spring lock is detachably mounted on the first adjusting chain.

8. The urban rail transit dropper adjustment device as described in claim 7, characterized in that, A locking device is provided at the opening of the spring lock.

9. A dropper adjustment device for urban rail transit as described in claim 1, characterized in that, The first adjusting chain and / or the second adjusting chain are composed of several circular rings connected in series.

10. The urban rail transit dropper adjustment device as described in claim 1, characterized in that, The line spacing between the two clamps of the double-bearing cable clamp is the same as the line spacing between the two clamps of the double-contact cable clamp.

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