Positioning wire clamp for overhead line system of electrified railway

Abstract

The utility model discloses an electrified railway contact net positioning wire clamp, and relates to the technical field of electrified railway contact nets. The wire clamp comprises a left wire clamp body and a right wire clamp body, mounting holes are formed in the side faces of the left wire clamp body and the right wire clamp body, and bolt assemblies are connected into the mounting holes in a sleeved mode. Through the arrangement of the bolt assembly, the two limiting rods on the two sides of the placement groove are pressed at the same time, the small springs are compressed and slide into the sleeve holes in the two sides of the moving block, then the bolts penetrate through the mounting holes in the side faces of the left wire clamp and the right wire clamp, the nuts are screwed into one ends of the bolts, and then the limiting rods are loosened; the small springs rebound to drive the limiting rods to reset and protrude out of the surface of the placement groove, the springs rebound to drive the limiting rods on the two sides of the moving block to extrude and fix the nuts in threaded connection, looseness can be avoided, and therefore the situation that the positioning wire clamp is loosened due to vibration generated when a pantograph top face sliding plate rubs the contact net is avoided; and the installation firmness of the overhead line system is influenced.

Description

Technical Field

[0001] The utility model belongs to the field of catenary of electrified railways, and more specifically, relates to a positioning clamp for the catenary of electrified railways. Background Art

[0002] The positioning clamp of the prior art installs two clamps through bolts to achieve the positioning effect. However, when the catenary is rubbed by the top surface skateboard of the pantograph, vibrations will occur. The vibrations of the catenary are transmitted to the positioning clamp. Over time, the bolts and nuts for installing the positioning clamp will become loose, and there is a lack of a structure to limit the nuts to prevent the positioning clamp from loosening and causing the catenary to fall off; when installing the positioning clamp at one end of the horizontal tie rod, the installation operation is not convenient enough. A large number of positioning clamps need to be installed for the long-distance railway laying work. The inconvenient operation will affect the overall construction efficiency.

[0003] Chinese Patent with the publication number CN220053580U discloses a positioning clamp for the catenary of electrified railways, which includes a first clamp plate, a second clamp plate and a positioning pin. Symmetric tooth profile angles are provided at the lower inner sides of the first clamp plate and the second clamp plate. A trapezoidal boss is provided on the outer side of the middle part of the first clamp plate, and a trapezoidal groove is provided on the inner side of the middle part of the second clamp plate. A semi-circular clamping plate is provided in the middle of the top end of the first clamp plate, and a first clamping groove is opened in the semi-circular clamping plate. An L-shaped clamping plate is provided in the middle of the top end of the second clamp plate, and a second clamping groove is provided on the inner side of the L-shaped clamping plate. An annular boss is provided at the end of the positioning pin. The positioning pin is vertically clamped between the first clamp plate and the second clamp plate, and the annular boss is clamped between the first clamping groove and the second clamping groove. The structure of the utility model is simple. The first clamp plate and the second clamp plate are engaged together through the trapezoidal boss and the trapezoidal groove, and the positioning clamp is fixed on the positioning pin, avoiding the occurrence of the clamp coming out of the groove.

[0004] In view of this, the present utility model is specifically proposed. Content of the Utility Model

[0005] The technical problem to be solved by the present utility model is to overcome the deficiencies of the prior art, and provide a positioning clamp for the catenary of electrified railways, solving the problems raised in the above background art.

[0006] To solve the above technical problems, the basic concept of the technical solution adopted by the present utility model is as follows:

[0007] A positioning clamp for the catenary of electrified railways, comprising: a left clamp and a right clamp. Installation holes are provided on the sides of the left clamp and the right clamp. A bolt assembly is sleeved inside the installation holes. One end of the bolt assembly is threadedly connected with a nut. An installation ring is provided on the top surface of the right clamp, and an installation component is fixedly connected to the side surface of the installation ring;

[0008] The bolt assembly includes a bolt sleeved inside the mounting hole. A placement groove is formed on the surface of the bolt. A spring is fixedly connected inside the placement groove. One end of the spring is fixedly connected with a moving block, and limiting structures are sleeved at both ends of the moving block.

[0009] Optionally, the limiting structure includes sleeve holes formed on both sides of the moving block. Small springs are sleeved inside the sleeve holes, and a limiting rod is fixedly connected to the top surface of the small springs.

[0010] Optionally, the limiting rod protrudes from both sides of the placement groove on the surface of the bolt. The small spring is fixedly connected to the inner bottom wall of the sleeve hole, and the limiting rod is slidably connected to the sleeve hole.

[0011] Optionally, the mounting assembly includes sliding plates fixedly connected to the side surface of the mounting ring in an axisymmetric manner. Sliders are slidably connected to the surfaces of the sliding plates in an axisymmetric manner. Threaded holes are formed on the side surfaces of the sliders. Screwing rods are threadedly connected to the internal threads of the threaded holes. Insertion rods are fixedly connected to the side surfaces of the sliders.

[0012] Optionally, chutes adapted to the sliders are provided on the surfaces of the sliding plates. An auxiliary rod for facilitating the exertion of force for screwing is inserted into one end of the screwing rod. An anti-slip sleeve for increasing the friction force is provided on the surface of the auxiliary rod, and the surface of the screwing rod has a left-right thread pattern.

[0013] Optionally, a sliding opening is formed on the side surface of the mounting ring. The inner diameter of the sliding opening is adapted to the slider. A mounting rod is clamped inside the mounting ring, and a slot adapted to the insertion rod is formed on the side surface of the mounting rod.

[0014] After adopting the above technical solutions, the present utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the present utility model does not necessarily need to achieve all the advantages described below at the same time:

[0015] 1. Through the setting of the bolt assembly, while holding the two limiting rods on both sides of the placement groove, compressing the small springs and sliding them into the sleeve holes on both sides of the moving block. Then, after passing the bolt through the mounting holes on the side surfaces of the left wire clamp and the right wire clamp, screwing a nut into one end of the bolt. Then, releasing the limiting rods, the small springs rebound to drive the limiting rods to reset and protrude from the surface of the placement groove. The spring rebounds, driving the limiting rods on both sides of the moving block to squeeze and fix the threadedly connected nut. Since the nut will move due to loosening, the limiting rod squeezes the nut to prevent it from moving, thus avoiding loosening. Therefore, it achieves the effect of preventing the positioning wire clamp from loosening due to the vibration generated by the friction between the top surface sliding plate of the pantograph and the catenary, which affects the installation firmness of the catenary.

[0016] 2. Through the settings of the installation component, insert the installation rod into the inside of the installation ring, turn the screwing rod, so that the two sliders thread - connected through the positive and negative thread patterns on its surface move closer to each other. The insertion rods fixed on the sides of the sliders enter the inside of the installation ring through the sliding openings on the side of the installation ring during the movement, and are inserted into the slots on the side of the installation rod inside the installation ring, completing the installation and fixation of the installation rod. The operation is more convenient, thus achieving the effect of improving the installation efficiency of the positioning wire clamp and avoiding affecting the efficiency of railway construction projects.

[0017] The following further describes in detail the specific embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following drawings in the description are only some embodiments. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. In the

[0019] In the figures:

[0020] Figure 1 is the overall structural schematic diagram;

[0021] Figure 2 is the structural schematic diagram of the bolt assembly;

[0022] Figure 3 is the structural schematic diagram of the installation component;

[0023] Figure 4 is the split structural schematic diagram.

[0024] In the drawings, the list of components represented by each reference numeral is as follows:

[0025] 1. Left wire clamp; 2. Right wire clamp; 3. Bolt assembly; 31. Bolt; 32. Spring; 33. Moving block; 34. Limiting structure; 341. Small spring; 342. Limiting rod; 4. Nut; 5. Installation ring; 6. Installation component; 61. Slide plate; 62. Slider; 63. Screwing rod; 64. Insertion rod; 7. Installation rod.

[0026] It should be noted that these drawings and text descriptions are not intended to limit the scope of the concept of the present invention in any way, but to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] Now, the present invention will be further described in detail with reference to the accompanying drawings.

[0028] Please refer to Figures 1-4As shown in the figure, in this embodiment, an electrified railway catenary positioning clamp is provided, including: a left clamp 1 and a right clamp 2. Mounting holes are provided on the sides of the left clamp 1 and the right clamp 2. A bolt assembly 3 is sleeved inside the mounting holes. One end of the bolt assembly 3 is threadedly connected to a nut 4. An installation ring 5 is provided on the top surface of the right clamp 2, and an installation assembly 6 is fixedly connected to the side surface of the installation ring 5.

[0029] One application aspect of this embodiment is as follows: The spring 32 rebounds, driving the limiting rods 342 on both sides of the moving block 33 to squeeze and fix the threadedly connected nut 4. Since the nut 4 will move due to loosening, the limiting rod 342 squeezes the nut 4 to prevent it from moving, thus avoiding loosening. It should be noted that all electrical equipment involved in this application can be powered by a battery or an external power source.

[0030] As Figure 2 shown in the figure, the limiting rod 342 of this embodiment protrudes from both sides of the placement groove on the surface of the bolt 31. The small spring 341 is fixedly connected to the inner bottom wall of the sleeve hole. The limiting rod 342 is slidably connected to the sleeve hole; the limiting rod 342 protruding from the placement groove on the surface of the bolt 31 can squeeze and lock the nut 4 threadedly connected to one end of the bolt 31, avoiding loosening of the nut 4.

[0031] As Figure 3 shown in the figure, chutes that match the sliders 62 are provided on the surfaces of the slide plates 61 of this embodiment. One end of the screwing rod 63 is inserted with an auxiliary rod for facilitating the exertion of force to turn. An anti-slip sleeve for increasing friction is provided on the surface of the auxiliary rod. The surface of the screwing rod 63 has a positive and negative thread pattern; the positive and negative thread pattern on the surface of the screwing rod 63 can drive the two sliders 62 that are threadedly connected to the surface by bearings to approach or move away from each other simultaneously, facilitating the installation or disassembly of the insertion rod 64 on the side of the slider 62 to the mounting rod 7.

[0032] Embodiment 1:

[0033] In this embodiment, the bolt assembly 3 includes a bolt 31 sleeved inside the mounting hole. A placement groove is provided on the surface of the bolt 31. A spring 32 is fixedly connected inside the placement groove. One end of the spring 32 is fixedly connected to a moving block 33. Limiting structures 34 are sleeved at both ends of the moving block 33. The limiting structure 34 includes sleeve holes opened on both sides of the moving block 33. A small spring 341 is sleeved inside the sleeve holes. The top surface of the small spring 341 is fixedly connected to a limiting rod 342;

[0034] While pressing the two limit rods 342 on both sides of the placement groove simultaneously, compress the small spring 341 and slide them into the sleeve holes on both sides of the moving block 33. Then, pass the bolt 31 through the mounting holes on the sides of the left wire clamp 1 and the right wire clamp 2, and then screw the nut 4 onto one end of the bolt 31. Then release the limit rod 342, and the small spring 341 rebounds to drive the limit rod 342 to reset and protrude from the surface of the placement groove. The spring 32 rebounds to drive the limit rods 342 on both sides of the moving block 33 to squeeze and fix the nut 4 connected by threads. Since the nut 4 may loosen and move, the limit rod 342 squeezes the nut 4 to prevent it from moving, thus avoiding loosening. Therefore, it achieves the effect of preventing the positioning wire clamp from loosening due to the vibration generated by the friction between the top slide plate of the pantograph and the catenary, which affects the installation firmness of the catenary.

[0035] Embodiment 2:

[0036] In this embodiment, the installation component 6 includes slide plates 61 symmetrically and fixedly connected to the side of the installation ring 5. The surfaces of the slide plates 61 are symmetrically and slidably connected with sliders 62. Threaded holes are formed in the sides of the sliders 62, and screw rods 63 are threadedly connected to the internal threads of the threaded holes. Insertion rods 64 are fixedly connected to the sides of the sliders 62;

[0037] Insert the installation rod 7 into the interior of the installation ring 5, and turn the screw rod 63 to make the two sliders 62 connected by the positive and negative thread patterns on its surface move closer to each other. The insertion rods 64 fixed to the sides of the sliders 62 enter the interior of the installation ring 5 through the sliding openings on the side of the installation ring 5 during the movement and are inserted into the slots on the side of the installation rod 7 inside the installation ring 5 to complete the installation and fixing work of the installation rod 7. The operation is more convenient, thus achieving the effect of improving the installation efficiency of the positioning wire clamp and avoiding affecting the efficiency of the railway construction project.

[0038] The present invention is not limited to the above embodiments. Anyone should know that structural changes made under the inspiration of the present invention, as long as they have the same or similar technical solutions as the present invention, fall within the protection scope of the present invention. The technologies, shapes, and structures not described in detail in the present invention are all well-known technologies.

Claims

1. An electrified railway contact network positioning clamp, characterized in that: include: A left wire clamp (1) and a right wire clamp (2), wherein the sides of the left wire clamp (1) and the right wire clamp (2) are both provided with mounting holes, a bolt assembly (3) is sleeved inside the mounting hole, one end of the bolt assembly (3) is threadedly connected to a nut (4), a mounting ring (5) is provided on the top surface of the right wire clamp (2), and a mounting assembly (6) is fixedly connected to the side of the mounting ring (5); The bolt assembly (3) comprises a bolt (31) sleeved inside a mounting hole, a placement groove is provided on the surface of the bolt (31), a spring (32) is fixedly connected inside the placement groove, one end of the spring (32) is fixedly connected to a moving block (33), and both ends of the moving block (33) are sleeved with a limiting structure (34).

2. The electric railway contact network positioning clamp according to claim 1, characterized in that: The limiting structure (34) comprises sleeve holes opened on both sides of the moving block (33), a small spring (341) is sleeved inside the sleeve holes, and the top surface of the small spring (341) is fixedly connected to the limiting rod (342).

3. The electric railway contact network positioning clamp according to claim 2, characterized in that: The limiting rod (342) protrudes from both sides of the placement groove on the surface of the bolt (31), the small spring (341) is fixedly connected to the inner bottom wall of the sleeve hole, and the limiting rod (342) is slidably connected to the sleeve hole.

4. The electric railway contact network positioning clamp according to claim 1, characterized in that: The mounting assembly (6) comprises a slide plate (61) which is fixedly connected to the side of the mounting ring (5) in an axisymmetric manner, the surface of the slide plate (61) is slidably connected to a slider (62) in an axisymmetric manner, the side of the slider (62) is provided with a threaded hole, the internal thread of the threaded hole is connected to a screw rod (63), and the side of the slider (62) is fixedly connected to an insertion rod (64).

5. The electric railway contact network positioning clamp according to claim 4, characterized in that: The surfaces of the slide plates (61) are provided with sliding grooves that fit with the slide blocks (62); one end of the twisting rod (63) is plugged with an auxiliary rod for facilitating twisting; the surface of the auxiliary rod is provided with an anti-slip sleeve for increasing friction; and the surface of the twisting rod (63) has positive and negative thread patterns.

6. The electric railway contact network positioning clamp according to claim 1, characterized in that: The side of the mounting ring (5) is provided with a sliding opening, the inner diameter of which matches the sliding block (62); the interior of the mounting ring (5) is clamped with a mounting rod (7), and the side of the mounting rod (7) is provided with a slot that matches the insertion rod (64).

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