Bolt-free positioning wire clamp for contact network

Abstract

The utility model discloses a bolt-free positioning wire clamp for an overhead line system. The bolt-free positioning wire clamp comprises a rotating pin and two bolt-free positioning wire clamp clamping plates, the rotating pin is located between the two bolt-free positioning wire clamp clamping plates and is installed and fixed through the matching between the two bolt-free positioning wire clamp clamping plates, the rotating pin comprises a main body, a clamping groove and a pin head, the clamping groove is located between the pin head and the main body, and a groove body of the clamping groove is in a semicircular shape; the bolt-free positioning wire clamp clamping plate comprises an L-shaped buckle, a notch, a side position baffle, a cable clamping groove slide way and a side blocking notch. The side baffles are located on the outer sides of the notches, and L-shaped buckles are arranged on the inner sides of the notches. Compared with a traditional positioning wire clamp, the bolt-free positioning wire clamp has the advantage that the number of components of the bolt-free positioning wire clamp is reduced. As a bolt fastening mode is not adopted any more, the problem that part fasteners are loosened can be avoided, and the line maintenance workload is reduced.

Description

Technical Field

[0001] The utility model discloses a bolt-free positioning wire clamp for a contact network, belonging to the technical field of electrified railway contact networks. Background Art

[0002] The positioning wire clamp is one of the key components in the flexible contact network system of electrified railways. It is widely used in the wrist positioning device and installed on the positioner to connect and fix the contact wire so that the pull-out value of the contact wire relative to the center of the track is limited to the design range. When the train passes the pantograph, the contact wire continues to rise and vibrate. After the pantograph is retracted, the wire falls, causing high-frequency vibration of the contact wire. Frequent vibrations cause the positioning wire clamp to be frequently stressed, which may cause the bolt fasteners to loosen. The positioning wire clamp is also a key part for daily inspection and maintenance. If the use of bolted connectors can be reduced in the part structure, a large amount of manual maintenance costs can be reduced. Utility Model Content

[0003] In order to overcome the above-mentioned shortcomings, the utility model discloses a boltless positioning wire clamp for a contact network.

[0004] The technical solution of the utility model is as follows:

[0005] A boltless positioning wire clamp for a contact network comprises a rotating pin and two boltless positioning wire clamp clamping plates; the rotating pin is located between the two boltless positioning wire clamp clamping plates and is installed and fixed by fitting between the two boltless positioning wire clamp clamping plates.

[0006] The rotating pin comprises a main body, a clamping slot and a nail head, wherein the clamping slot is located between the nail head and the main body, and the slot body of the clamping slot is semicircular;

[0007] The boltless positioning wire clamp splint includes an L-shaped buckle, an entry slot, a side baffle, a wire clip slot slide and a side baffle slot; the side baffle is located on the outside of the entry slot, and an L-shaped buckle is provided on the inside of the entry slot; the side baffle is opposite to the side baffle slot, and the side baffle cooperates with the side baffle slot so that the boltless positioning wire clamp splint has a force to move toward the wire diameter; there is a gap below the side baffle, and below the gap is a wire clip slot slide, which is connected to the side baffle slot, and the slot of the wire clip slot slide fits the contact wire slot, and the size matching is used to make the slot and the wire product interact with each other to play a clamping role.

[0008] Preferably, the above-mentioned boltless positioning wire clamp splint also includes locking teeth and locking tooth grooves; one side of the side wall of the wire clamping slot slide has locking teeth, and the other side has locking tooth grooves, and the locking tooth grooves cooperate with the locking teeth to achieve a locking effect.

[0009] Preferably, the boltless positioning wire clamp plate further comprises a diameter-embracing boss located at the top of the slot, which is used to increase the matching area with the rotating pin and improve the strength of the diameter-embracing portion.

[0010] The beneficial effects of the utility model are:

[0011] Compared with the traditional positioning wire clamp, this boltless positioning wire clamp simplifies the number of components. Because it no longer uses bolts to tighten, it can avoid the problem of loosening of parts and fasteners, and reduce the workload of line maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 is a schematic diagram of the structure of a rotating pin;

[0014] Figure 3 It is a schematic diagram of the structure of a boltless positioning wire clamp splint;

[0015] Figure 4 A schematic diagram of the structure of the locking teeth and the locking tooth grooves;

[0016] Figure 5 It is a schematic diagram of the cooperation between the locking teeth and the locking tooth grooves when two boltless positioning wire clamp plates are locked;

[0017] Figure 6 This is a diagram of the installation of boltless positioning clamps for contact network. Figure 1 ;

[0018] Figure 7 This is a diagram of the installation of boltless positioning clamps for contact network. Figure 2 ;

[0019] Figure 8 This is a diagram of the installation of boltless positioning clamps for contact network. Figure 3 ;

[0020] Fig. 9 This is a diagram of the installation of boltless positioning clamps for contact network. Figure 4 ;

[0021] Fig.10 This is a diagram of the installation of boltless positioning clamps for contact network. Figure 5 ;

[0022] Fig.11 This is a diagram of the installation of boltless positioning clamp and contact wire Figure 1 ;

[0023] Fig.12 This is a diagram of the installation of boltless positioning clamp and contact wire Figure 2 . DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0025] like Figure 1 As shown, a boltless positioning wire clamp for a contact network comprises a rotating pin 1 and two boltless positioning wire clamp clamping plates 2; the rotating pin 1 is located between the two boltless positioning wire clamp clamping plates and is fixed by fitting the two boltless positioning wire clamp clamping plates together.

[0026] like Figure 2 As shown, the rotating pin 1 includes a main body 1-3, a slot 1-2 and a nail head 1-1, wherein the slot 1-2 is located between the nail head 1-1 and the main body 1-3, and the slot body of the slot 1-2 is semicircular;

[0027] like Figure 3 As shown, the boltless positioning wire clamp plate includes an L-shaped buckle 2-1, an entry slot 2-2, a side baffle 2-3, a wire clamp slot slide 2-4 and a side baffle slot 2-6.

[0028] The side baffle plate 2-3 is located on the outside of the entry slot 2-2, and an L-shaped buckle 2-1 is provided on the inside of the entry slot 2-2; the side baffle plate 2-3 is located opposite to the side baffle slot 2-6, and the side baffle plate 2-3 cooperates with the side baffle slot 2-6 so that the boltless positioning wire clamp splint has the force to move toward the wire diameter; there is a gap below the side baffle plate 2-3, and below the gap is the wire clip slot slide 2-4, which is connected to the side baffle slot 2-6, and the slot of the wire clip slot slide 2-4 fits the contact wire slot, and the size matching is used to make the slot and the wire product interact with each other to play a clamping role.

[0029] Preferably, if Figure 4-5 As shown, the above-mentioned boltless positioning wire clamp splint also includes locking teeth 2-7 and locking tooth grooves 2-8; one side of the side wall of the wire clamp slot slide 2-4 has a locking tooth 2-7, and the other side has a locking tooth groove 2-8, and the locking tooth groove 2-8 cooperates with the locking teeth 2-7 to play a locking role.

[0030] Preferably, the boltless positioning wire clamp plate further comprises a diameter-embracing boss 2-5, which is located at the top of the slot 2-2 and is used to increase the matching area with the rotating pin 1 and improve the strength of the diameter-embracing portion.

[0031] The function of the L-shaped buckle 2-1 is to insert it into the slot 1-2 of the rotating pin 1 laterally during installation to fix it in the vertical direction, and the rotating pin 1 can rotate flexibly therein.

[0032] Function of slot 2-2: It is a clearance for the rotating pin to avoid interference when installing it.

[0033] The function of the side baffle 2-3 is that it has a certain inclination and slides toward the center to provide clamping force when clamping.

[0034] Function of the wire card slot slide 2-4: the card slot fits into the contact wire slot, and the card slot and the wire product interact with each other by size matching, thereby playing a clamping role.

[0035] The function of the diameter-holding boss 2-5 is to increase the matching area with the rotating pin, improve the strength of the diameter-holding part, and improve its tensile performance.

[0036] Function of the side baffle slots 2-6: The slots cooperate with the side baffles to exert force on the product to move toward the wire diameter.

[0037] The function of the locking teeth 2-7 is to lock and prevent the opening from disengaging.

[0038] The function of the locking tooth grooves 2-8 is to cooperate with the locking teeth for locking.

[0039] Installation process of boltless positioning clamp for contact network:

[0040] 1. If Figure 6 As shown, clamp the boltless positioning wire clamp plates on both sides of the contact wire and push them toward the center;

[0041] 2. If Figure 7 As shown, when the slots 2-2 of the two splints are aligned, the rotating pin 1 is inserted into the slot and continues to move toward the center;

[0042] 3. If Figure 8-9 As shown, until the two pieces are closed and locked, the installation can be completed;

[0043] 4. If Fig.10 As shown, the side locking teeth are fully closed, i.e. installed in place;

[0044] Boltless positioning wire clamp and contact wire installation process:

[0045] like Figure 11-12 As shown, the size of the wire clamp cable groove slideway 2-4 after matching is smaller than the width of the cable dovetail groove. During the sliding closing process, the cable will give the clamp a reverse force due to the extrusion force. The two clamps are fully applied to the cable groove under the action of the side baffle 2-3 and the side baffle notch 2-6. Therefore, the clamp can clamp the cable without slipping and disengaging.

[0046] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A boltless positioning clamp for contact network, characterized in that The invention comprises a rotating pin (1) and two boltless positioning wire clamp plates (2); the rotating pin (1) is located between the two boltless positioning wire clamp plates and is fixed by fitting the two boltless positioning wire clamp plates together. The rotating pin (1) comprises a main body (1-3), a clamping slot (1-2) and a nail head (1-1); the clamping slot (1-2) is located between the nail head (1-1) and the main body (1-3); and the slot body of the clamping slot (1-2) is semicircular; The boltless positioning wire clamp plate comprises an L-shaped buckle (2-1), an entry slot (2-2), a side baffle plate (2-3), a wire clamping slot slideway (2-4) and a side baffle slot (2-6); the side baffle plate (2-3) is located outside the entry slot (2-2), and an L-shaped buckle (2-1) is provided inside the entry slot (2-2); the side baffle plate (2-3) is opposite to the side baffle slot (2-6), and the side baffle plate (2-3) cooperates with the side baffle slot (2-6) so that the boltless positioning wire clamp plate has a force to move toward the wire diameter; a gap is provided below the side baffle plate (2-3), and a wire clamping slot slideway (2-4) is provided below the gap; the wire clamping slot slideway (2-4) is connected to the side baffle slot (2-6), and the clamping slot of the wire clamping slot slideway (2-4) fits the contact wire slot, and the clamping slot and the wire product interact with each other by size matching, thereby playing a clamping role.

2. A boltless positioning clamp for contact network according to claim 1, characterized in that The boltless positioning wire clamp plate also includes a locking tooth (2-7) and a locking tooth groove (2-8); one side of the side wall of the wire clamping slot slideway (2-4) has a locking tooth (2-7), and the other side has a locking tooth groove (2-8); the locking tooth groove (2-8) cooperates with the locking tooth (2-7) to achieve a locking effect.

3. A boltless positioning clamp for contact network according to claim 1, characterized in that The boltless positioning wire clamp plate also includes a diameter-enclosing boss (2-5) located at the top of the slot (2-2) and used to increase the matching area with the rotating pin (1) and improve the strength of the diameter-enclosing portion.

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