Limiting device for embedded channel of overhead line system

Abstract

The utility model relates to a limiting device for an embedded channel of a contact network, and relates to the technical field of embedded channels of the contact network. The grounding knife-switch device comprises a base and at least two limiting assemblies. Each limiting assembly comprises a first clamping piece, a second clamping piece and a reset piece, wherein the first clamping piece and the second clamping piece are oppositely arranged at intervals. The first clamping piece and the second clamping piece are rotationally connected with the base through reset pieces correspondingly, and the reset pieces apply acting force in the rotating direction to the first clamping piece and the second clamping piece. When the embedded channel of the overhead line system is placed between the first clamping piece and the second clamping piece, the first clamping piece and the second clamping piece overcome the elastic force of the reset piece and rotate inwards till the two sides of the embedded channel are clamped. And after the external force disappears, the reset piece restores the elastic force to push the first clamping piece and the second clamping piece to return to the original positions, so that the multiple embedded channels are firmly clamped and limited, and the situation that the embedded channels of the overhead line system are collided by the external force and easily slip off during stacking is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pre-buried channels of contact networks, in particular to a limiting device for pre-buried channels of contact networks. Background Art

[0002] The contact network is a high-voltage transmission line laid in a zigzag shape above the electrified train tracks for the pantograph to draw current. When installing the contact network, it is necessary to pre-buried grooves at the installation site, and then install the support columns of the contact network with the grooves, so that the support columns of the contact network are stably constrained with the grooves, which facilitates the later laying of the contact network.

[0003] When the pre-buried contact network ducts required for use are stacked at the installation site, they are easily accidentally touched by workers, causing the pre-buried ducts to scatter, which can easily injure people. At the same time, the scattered pre-buried ducts are easily stepped on by on-site personnel, causing accidental deformation and unusability. Utility Model Content

[0004] The utility model provides a limiting device for a pre-buried channel of a contact network, which can prevent the pre-buried channel of the contact network from sliding off easily during stacking, thereby improving the stacking safety of the pre-buried channel of the contact network at the contact network installation site.

[0005] An embodiment of the present application provides a limiting device for a pre-buried channel of a contact network, comprising: a base; and at least two limiting components, each limiting component comprising a first clamping member and a second clamping member and a reset member spaced apart and opposite to each other, the first clamping member and the second clamping member being rotatably connected to the base via the reset member respectively, and the reset member applying a force in the rotational direction to the first clamping member and the second clamping member.

[0006] According to the aforementioned implementation of the embodiment of the present application, the first clamping member includes a first clamping surface, the second clamping member includes a second clamping surface, and the first clamping surface and the second clamping surface jointly clamp the embedded channel of the contact network.

[0007] According to any of the aforementioned implementations of the embodiments of the present application, both the first clamping surface and the second clamping surface are provided with protection pads.

[0008] According to any of the aforementioned implementations of the embodiments of the present application, the reset member is an elastic reset member, the elastic reset member is in a compressed state along the rotation direction of the first clamping member and the second clamping member, and / or the elastic reset member is a torsion spring.

[0009] According to any of the aforementioned implementations of the embodiments of the present application, both the first clamping member and the second clamping member are provided with operating rods, and the operating rods are fixedly connected to the first clamping member and the second clamping member respectively.

[0010] According to any of the aforementioned implementations of the present application, the at least two position-limiting components include a first position-limiting component and a second position-limiting component, and the first position-limiting component and the second position-limiting component are symmetrically arranged.

[0011] According to any of the aforementioned embodiments of the present application, the limiting device of the embedded channel of the contact network also includes two supporting components, one of which is arranged between the first clamping member of the first limiting component and the first clamping member of the second limiting component, and the other supporting component is arranged between the second clamping member of the first limiting component and the second clamping member of the second limiting component to limit the rotation of the first clamping member and the second clamping member relative to the base.

[0012] According to any of the aforementioned embodiments of the present application, the support assembly includes a first support member, a second support member and a telescopic restoration member, one end of the first support member is provided with a accommodating cavity extending along its own length direction and having an opening, the telescopic restoration member is arranged in the accommodating cavity, one end of the telescopic restoration member is connected to the first support member, the other end of the telescopic restoration member is connected to one end of the second support member along its own length direction, the other end of the second support member is connected to the first clamping member or the second clamping member, and the end of the first support member facing away from the second support member is connected to the second clamping member or the first clamping member.

[0013] According to any of the aforementioned implementations of the present application, the first clamping member and the second clamping member are both provided with connecting grooves, and the first support member and the second support member are abutted or clamped with the connecting grooves.

[0014] According to any of the aforementioned embodiments of the present application, the outer peripheral surface of the first support member is provided with an open groove extending along its own length direction, the open groove is connected to the accommodating chamber, and the outer peripheral surface of the second support member is provided with a connecting column, at least part of the connecting column protrudes from the first support member through the opening groove.

[0015] According to the limiting device of the embedded channel of the contact network according to the embodiment of the present application, in the initial state, the reset member applies a certain rotational force to the first clamping member and the second clamping member, so that the two maintain a certain angle or an open state. When the embedded channel of the contact network needs to be stacked, the embedded channel of the contact network can be placed between the first clamping member and the second clamping member. As the embedded channel is placed, the first clamping member and the second clamping member are acted upon by an external force, overcome the elastic force of the reset member and rotate inward until they clamp the two sides of the embedded channel. When the external force disappears, the reset member restores the elastic force and pushes the first clamping member and the second clamping member back to their original position, thereby achieving firm clamping and limiting of multiple embedded channels, preventing the embedded channel of the contact network from being easily slipped due to external force collision during stacking, thereby improving the stacking safety and stability of the embedded channel of the contact network at the installation site. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be described in more detail below based on embodiments with reference to the accompanying drawings.

[0017] Figure 1 This is a structural diagram of a limiting device for limiting the position of a pre-buried channel of a contact network according to an embodiment of the present application;

[0018] Figure 2 This is a structural schematic diagram showing another perspective of the position limiting device of the previous embodiment of the present application for limiting the embedded channel of the contact network;

[0019] Figure 3 It is a structural diagram of the support assembly in one embodiment of the present application.

[0020] Reference numerals:

[0021] 1000-limit device;

[0022] 100-base;

[0023] 200-limiting assembly; 210-first clamping member; 220-second clamping member; 230-resetting member; 240-protection pad; 250-operating rod; 260-connecting slot;

[0024] 300 - support assembly; 310 - first support member; 311 - accommodating cavity; 312 - opening slot; 320 - second support member; 321 - connecting column; 330 - telescopic reset member;

[0025] 2000-Contact network embedded trough. DETAILED DESCRIPTION

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] The utility model provides a limiting device for a pre-buried channel of a contact network, which can prevent the pre-buried channel of the contact network from sliding off easily during stacking, thereby improving the stacking safety of the pre-buried channel of the contact network at the contact network installation site.

[0028] Figure 1 This is a structural diagram of a limiting device for limiting the position of a pre-buried channel of a contact network according to an embodiment of the present application; Figure 2 This is a structural diagram of another perspective of the limiting device of the embodiment of the present application for limiting the embedded channel of the contact network. Figure 1-2As shown, an embodiment of the present application provides a limiting device 1000 for a pre-buried catenary channel 2000. The limiting device 1000 for a pre-buried catenary channel 2000 includes a base 100 and at least two limiting assemblies 200. Each limiting assembly 200 includes a first clamping member 210 and a second clamping member 220 spaced apart and arranged opposite to each other, and a reset member 230. The first clamping member 210 and the second clamping member 220 are each rotatably connected to the base 100 via the reset member 230. The reset member 230 applies a rotational force to the first clamping member 210 and the second clamping member 220.

[0029] It should be noted that the reset member 230 can be an elastic reset member or an electromagnetic reset member, as long as it can apply a rotational direction to the first clamping member 210 and the second clamping member 220 .

[0030] There are at least two limiting components 200. It can be understood that there can be multiple limiting components 200 on the base 100, and each limiting component 200 can limit one or more contact network embedded grooves 2000.

[0031] According to the limiting device 1000 for the pre-embedded catenary channel 2000 of the embodiment of the present application, in the initial state, the reset member 230 applies a certain rotational force to the first clamping member 210 and the second clamping member 220, so that the two maintain a certain angle or open state. When the pre-embedded catenary channel 2000 needs to be stacked, the pre-embedded catenary channel 2000 can be placed between the first clamping member 210 and the second clamping member 220. As the pre-embedded channel is placed, the first clamping member 210 and the second clamping member 220 are subjected to external force, overcome the elastic force of the reset member 230, and rotate inward until they clamp both sides of the pre-embedded channel. When the external force disappears, the reset member 230 restores its elastic force, pushing the first clamping member 210 and the second clamping member 220 back to their original positions, thereby achieving firm clamping and limiting of multiple embedded grooves, preventing the contact network embedded grooves 2000 from being easily slipped due to external force collision during stacking, thereby improving the stacking safety and stability of the contact network embedded grooves 2000 at the installation site.

[0032] like Figure 2 As shown, in some embodiments, the first clamping member 210 includes a first clamping surface, and the second clamping member 220 includes a second clamping surface. The first clamping surface and the second clamping surface jointly clamp the contact network embedded channel 2000.

[0033] The design of the first and second clamping surfaces can accommodate embedded channels of varying shapes and sizes. Therefore, the position limiting device 1000 has greater adaptability and can more effectively clamp the embedded channel, ensuring its stability in a fixed position. Compared to a single clamping point or clamping method, this design provides a larger clamping area and more uniform clamping force, thereby improving the fixing effect of the embedded channel.

[0034] In this embodiment, when it is necessary to clamp and limit the contact network embedded groove 2000, the contact network embedded groove 2000 is placed between the first clamping surface and the second clamping surface, and the first clamping member 210 and the second clamping member 220 overcome the force of the reset member 230, so that the first clamping surface and the second clamping surface tightly clamp the two sides of the contact network embedded groove 2000. Even if it is subjected to a certain impact force or vibration from the outside, the contact network embedded groove 2000 can remain stable under the action of the clamping surface and is not easy to fall off or displace.

[0035] In some optional embodiments, the first clamping surface and the second clamping surface can also match the clamping surface of the contact network embedded groove 2000 to ensure close contact between the clamping surface and the contact network embedded groove 2000, thereby enhancing the clamping force, reducing wear and damage, and thus improving the stability and firmness of the clamping.

[0036] like Figure 2 As shown, in some embodiments, both the first clamping surface and the second clamping surface are provided with a protection pad 240 .

[0037] In this embodiment, the protective pad 240 can be made of a material with high wear resistance, high elasticity, and high tear resistance, such as rubber, polyurethane, nylon, etc. The protective pad 240 allows the first clamping surface and the second clamping surface to clamp the catenary embedded channel 2000. The cushioning effect of the protective pad 240 can prevent damage to the embedded channel due to excessive clamping force, and is less likely to cause scratches on the outside of the catenary embedded channel 2000, thereby preventing the paint on the outside of the catenary embedded channel 2000 from being damaged by the first clamping surface and the second clamping surface.

[0038] like Figure 2 As shown, in some embodiments, the reset member 230 is an elastic reset member, the elastic reset member is in a compressed state along the rotation direction of the first clamping member 210 and the second clamping member 220, and / or the elastic reset member is a torsion spring.

[0039] In this embodiment, the reset member 230 is an elastic reset member, such as a spring, elastic sheet, or rubber block. This helps reduce maintenance costs and replacement frequency. The elastic reset member continuously provides a stable restoring force to the first clamping member 210 and the second clamping member 220, ensuring they maintain a secure grip on the embedded channel and preventing the embedded channel from loosening or falling off due to vibration or external forces.

[0040] In some optional embodiments, the elastic return member is preferably a torsion spring, which has multiple advantages such as large load-bearing capacity, long service life, strong adaptability, high cost-effectiveness, high precision and good stability, strong environmental adaptability and adaptive adjustment capability.

[0041] like Figure 2 As shown, in some embodiments, the first clamping member 210 and the second clamping member 220 are both provided with an operating rod 250. The operating rod 250 is fixedly connected to the first clamping member 210 and the second clamping member 220 respectively.

[0042] In this embodiment, the design of the operating lever 250 allows construction workers to more easily control the opening and closing of the first clamping member 210 and the second clamping member 220. By simply pushing or pulling the operating lever 250, construction workers can rotate the first clamping member 210 and the second clamping member 220, thereby clamping and releasing the catenary embedded channel 2000, reducing construction time and labor costs.

[0043] like Figure 2 As shown, in some embodiments, at least two limiting assemblies 200 include a first limiting assembly and a second limiting assembly, and the first limiting assembly and the second limiting assembly are symmetrically arranged. The symmetrically arranged limiting assemblies 200 can provide a more uniform and stable support force, which helps to reduce vibration and shaking of the limiting device 1000.

[0044] like Figure 2-3 As shown, in some embodiments, the contact network embedded channel limiting device 1000 further includes two support assemblies 300, one of which is disposed between the first clamping member 210 of the first limiting assembly 200 and the first clamping member 210 of the second limiting assembly 200. The other support assembly 300 is disposed between the second clamping member 220 of the first limiting assembly 200 and the second clamping member 220 of the second limiting assembly 200, thereby limiting the rotation of the first clamping member 210 and the second clamping member 220 relative to the base 100.

[0045] In this embodiment, the two support assemblies 300 primarily function to restrict the rotation of the first clamping member 210 and the second clamping member 220 relative to the base 100. By providing additional support and restraint, the support assemblies 300 can ensure that the clamping members do not unexpectedly rotate or shift when subjected to external forces, thereby maintaining the stability and accuracy of the limiting device 1000.

[0046] When the contact network pre-grooves are stacked and are subject to the weight of the upper layer, the first clamping member 210 and the second clamping member 220 of the first limiting assembly 200 or the first clamping member 210 and the second clamping member 220 of the second limiting assembly 200 rotate and open by themselves, and the two support assemblies 300 support and limit the first limiting assembly 200 and the second limiting assembly 200, so that the first clamping member 210 and the second clamping member 220 of the first limiting assembly 200 or the first clamping member 210 and the second clamping member 220 of the second limiting assembly 200 are difficult to rotate and open by themselves, so that the contact network pre-grooves are more stable when stacked at the installation site.

[0047] like Figure 2-3 As shown, in some embodiments, the support assembly 300 includes a first support member 310, a second support member 320, and a telescopic return member 330. One end of the first support member 310 is provided with a receiving cavity 311 extending along its length and having an opening. The telescopic return member 330 is disposed within the receiving cavity 311. One end of the telescopic return member 330 is connected to the first support member 310, and the other end of the telescopic return member 330 is connected to one end of the second support member 320 along its length. The other end of the second support member 320 is connected to the first clamping member 210 or the second clamping member 220, and the end of the first support member 310 facing away from the second support member 320 is connected to the second clamping member 220 or the first clamping member 210.

[0048] In this embodiment, after the first limiting assembly 200 and the second limiting assembly 200 clamp and limit the contact network embedded groove 2000, the external force supporting assembly 300 causes the second support member 320 to move relative to the first support member 310. This movement process compresses or stretches the telescopic reset member 330 until the desired support or clamping position is reached. The first support member 310 and the second support member 320 together form a stable support structure between the first limiting assembly 200 and the second limiting assembly 200 for supporting or clamping the workpiece, making it difficult for the first clamping member 210 and the second clamping member 220 to rotate open on their own, making the contact network pre-groove more stable when stacked at the installation site.

[0049] like Figure 2-3 As shown, in some embodiments, the first clamping member 210 and the second clamping member 220 are both provided with a connecting groove 260 , and the first support member 310 and the second support member 320 are respectively abutted or clamped with the connecting groove 260 .

[0050] In this embodiment, connecting grooves 260 are respectively provided on the first clamping member 210 and the second clamping member 220. When the first support member 310 and the second support member 320 need to be connected to the first clamping member 210 and the second clamping member 220, they will be inserted into the corresponding connecting grooves 260, thereby improving the connection stability between the first clamping member 210 and the second clamping member 220 and the support assembly 300. In some optional embodiments, the ends of the first support member 310 and the second support member 320 connected to the connecting grooves 260 may also be provided with buckles, protrusions or other locking mechanisms, and the connecting grooves 260 may also be provided with corresponding structures (such as slots, grooves, etc.) to cooperate with each other, thereby achieving a more secure snap connection and reducing loosening or falling off caused by vibration or external forces during use.

[0051] like Figure 3 As shown, in some embodiments, the outer circumference of the first support member 310 is provided with an open slot 312 extending along its length. The open slot 312 is connected to the accommodating cavity 311. The outer circumference of the second support member 320 is provided with a connecting post 321, and at least a portion of the connecting post 321 protrudes from the first support member 310 through the open slot 312.

[0052] In this embodiment, when the support assembly 300 is needed to support the first limit assembly 200 and the second limit assembly 200, the end of the first support member 310 facing away from the second support member 320 is first connected to the connecting groove 260 of the first limit assembly 200 or the second limit assembly 200, and then slides in the opening groove 312 along the length direction of the first support member 310 itself through the connecting column 321, driving the second support member 320 to move relative to the first support member 310 along the length direction of the first support member 310 itself. The second support member 320 compresses the telescopic reset member 330, and after aligning it with the connecting groove 260 of the first limit assembly 200 or the second limit assembly 200, releases the connecting column 321, and the telescopic reset member 330 is reset, driving the second support member 320 to connect with the connecting groove 260. The installation can be easily completed without using complex tools or performing tedious adjustments.

[0053] While the present invention has been described with reference to preferred embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, the various technical features described in the various embodiments may be combined in any manner, provided no structural conflicts exist. The present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A limiting device for a pre-buried channel of a contact network, characterized in that: include: base; as well as At least two limit assemblies, each of which includes a first clamping member and a second clamping member and a reset member that are spaced apart and arranged opposite to each other, the first clamping member and the second clamping member are respectively rotatably connected to the base through the reset member, and the reset member applies a force in the rotational direction to the first clamping member and the second clamping member.

2. The limiting device for the pre-buried channel of the contact network according to claim 1, characterized in that: The first clamping member includes a first clamping surface, and the second clamping member includes a second clamping surface. The first clamping surface and the second clamping surface jointly clamp the contact network embedded groove.

3. The limiting device for the pre-buried channel of the contact network according to claim 2, characterized in that: The first clamping surface and the second clamping surface are both provided with protection pads.

4. The limiting device for the pre-buried channel of the contact network according to claim 1, characterized in that: The reset member is an elastic reset member, the elastic reset member is in a compressed state along the rotation direction of the first clamping member and the second clamping member, and / or the elastic reset member is a torsion spring.

5. The limiting device for the pre-buried channel of the contact network according to claim 1, characterized in that: The first clamping member and the second clamping member are both provided with an operating rod, and the operating rod is fixedly connected to the first clamping member and the second clamping member respectively.

6. The limiting device for the pre-buried channel of the contact network according to claim 1, characterized in that: The at least two position-limiting components include a first position-limiting component and a second position-limiting component, and the first position-limiting component and the second position-limiting component are symmetrically arranged.

7. The limiting device for the pre-buried channel of the contact network according to claim 6, characterized in that: The limiting device of the contact network embedded groove also includes two supporting components, one of which is arranged between the first clamping component of the first limiting component and the first clamping component of the second limiting component, and the other supporting component is arranged between the second clamping component of the first limiting component and the second clamping component of the second limiting component to limit the rotation of the first clamping component and the second clamping component relative to the base.

8. The limiting device for the pre-buried channel of the contact network according to claim 7, characterized in that: The support assembly includes a first support member, a second support member and a telescopic restoration member. One end of the first support member is provided with a accommodating cavity extending along its own length direction and having an opening. The telescopic restoration member is arranged in the accommodating cavity. One end of the telescopic restoration member is connected to the first support member, and the other end of the telescopic restoration member is connected to one end of the second support member along its own length direction. The other end of the second support member is connected to the first clamping member or the second clamping member, and the end of the first support member facing away from the second support member is connected to the second clamping member or the first clamping member.

9. The limiting device for the pre-buried channel of the contact network according to claim 8, characterized in that: The first clamping member and the second clamping member are both provided with connecting grooves, and the first supporting member and the second supporting member are respectively abutted or clamped with the connecting grooves.

10. The limiting device for the pre-buried channel of the contact network according to claim 8 or 9, characterized in that: The outer circumference of the first support member is provided with an open groove extending along its own length direction, and the open groove is connected to the accommodating cavity. The outer circumference of the second support member is provided with a connecting column, and at least part of the connecting column protrudes from the first support member through the open groove.

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