Carrier cable clamp

Abstract

The invention discloses a carrier cable clamp which comprises a hanging part used for being connected with a carrier cable and a connecting part used for being connected with a dropper, the hanging part comprises a hook and a pair of cams arranged in a hinged mode, the hook can be hung on the carrier cable, and the cams can support the carrier cable and are matched with the hook to clamp the carrier cable. The cam is provided with a torsional spring capable of driving the cam to keep a state of supporting the carrier cable; according to the cable clamp, the cam is matched with the hook to clamp the carrier cable, so that the cable clamp is fixed on the carrier cable, the clamping state of the carrier cable is relieved by rotating the cam, the cable clamp is moved, and the operation is convenient and rapid.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of catenary, in particular to a messenger wire clamp. BACKGROUND

[0002] In the rail transit catenary system, the dropper precisely positions the contact line geometric parameters by being arranged between the messenger wire and the contact line, the messenger wire clamp fixes the dropper to the messenger wire, the traditional messenger wire clamp and the messenger wire fixing mode adopts main and auxiliary clamps to clamp and fix, when the messenger wire clamp is moved on the messenger wire, the main and auxiliary clamps need to be separated first, then moved, and after being moved to the appropriate position, the main and auxiliary clamps are fixed and connected to form clamping to the messenger wire, so that the messenger wire clamp is inconvenient to operate. SUMMARY

[0003] In order to solve the problems in the prior art, the present application provides a messenger wire clamp which is convenient to operate and move on the messenger wire, and the technical scheme adopted by the present application is as follows:

[0004] A messenger wire clamp, comprising a suspension part for connecting the messenger wire and a connecting part for connecting the dropper, the suspension part comprises a hook and a pair of hingedly arranged cams, the hook can be suspended on the messenger wire, the cams can support the messenger wire and cooperate with the hook to form clamping to the messenger wire, and a torsional spring is arranged on the cam to keep the cam in the state of supporting the messenger wire.

[0005] Further, the rotating directions of the pair of cams for supporting the messenger wire are opposite.

[0006] Further, the contact parts of the pair of cams and the messenger wire are provided with tooth surfaces.

[0007] Further, the hook is provided with a pair of hooks which are suspended on the messenger wire from the two opposite sides of the messenger wire.

[0008] Further, the hook is in the shape of U and both ends are fixedly connected.

[0009] Further, the connecting part is a lifting ring.

[0010] Further, the connecting part comprises a mounting hole through which the dropper passes, a wedge block is arranged in the mounting hole to wedge the dropper arranged in the mounting hole, an elastic member is further arranged to keep the wedge block in the wedged state, and an unlocking member is arranged to overcome the elastic force of the elastic member to release the wedged state of the wedge block.

[0011] The clamp clamps the messenger wire through the cooperation of the cam and the hook, so as to fix the clamp on the messenger wire, and the clamp is moved by rotating the cam to release the clamping state of the messenger wire, which is convenient and fast to operate. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a structural schematic diagram of the embodiment 1;

[0013] Figure 2 is a sectional view of the embodiment 1;

[0014] Figure 3 is an exploded view of the embodiment 1;

[0015] Figure 4 is a structural schematic diagram of the embodiment 2;

[0016] Figure 5 is an exploded view of the embodiment 2. DETAILED DESCRIPTION

[0017] As shown in the figure, the force cable clamp comprises a hanging part and a connecting part, the hanging part is used to connect the force cable to fix the force cable clamp on the force cable, and the connecting part is used to connect the sling. Figures 1 to 3 The hanging part comprises a hook 1 and a pair of cams 2, when the force cable clamp is installed on the force cable, the hook 1 is hung on the force cable, the cam 2 is hingedly arranged, and a torsional spring 3 is arranged on the cam 2, under the drive of the torsional spring 3, the cam 2 can form support to the bottom of the force cable, and then the hook 1 is cooperated with the cam 2 to form clamping to the force cable to fix the clamp on the force cable A.

[0018] When it is needed to move the position of the clamp on the force cable, it is only needed to move the cam 2 to overcome the elastic force of the torsional spring to release the clamping state to the force cable, and then the clamp can be moved along the force cable to the appropriate position, the cam 2 is loosened to make the torsional spring 3 drive the cam 2 to form support to the force cable again, and the force cable is clamped in cooperation with the hook.

[0019] In order to avoid the clamp from sliding on the force cable, a tooth surface 4 is arranged on the contact surface between the cam 2 and the force cable to increase the friction, and the two cams 2 are oppositely arranged, that is, the rotation directions of the two cams 2 to support the force cable are opposite, and the advantage of this arrangement is that when the force cable clamp moves in one direction, one of the cams 2 will be driven by the friction force on the force cable to overcome the elastic force of the torsional spring to release the clamping state, but the other cam 2 will further increase the clamping force, and the rotation directions of the two cams 2 to provide support and clamping are consistent, so that the clamping state is not damaged when the clamp moves in a certain direction, and the clamp can also be moved without releasing the clamping state of the cam 2.

[0020] In this embodiment, the hook 1 is an open hook, in order to avoid the clamp from rotating around the force cable to unhook, a pair of hooks 1 are arranged, and the pair of hooks 1 are oppositely hung from the two sides of the force cable to avoid unhooking, so at least one of the hooks needs to be removed when installing, the hook which is not removed is hung, and then the removed hook is installed in place.

[0021] In this embodiment, the hook 1 is an open hook, in order to avoid the clamp from rotating around the force cable to unhook, a pair of hooks 1 are arranged, and the pair of hooks 1 are oppositely hung from the two sides of the force cable to avoid unhooking, so at least one of the hooks needs to be removed when installing, the hook which is not removed is hung, and then the removed hook is installed in place.

[0022] or as shown in Figure 4 and Figure 5 The hook is set as a U-shaped hook, the hook 1 straddles the cable, and the two ends of the hook 1 are fixed to prevent unhooking.

[0023] Two structures are respectively given in two embodiments about the connecting part of the hanging cord, as shown in Figures 1 to 3 The connecting part includes a mounting hole 6, the hanging cord passes through the mounting hole 6 and is connected with the hanging part, a wedge 7 is arranged in the mounting hole 6, and the wedge 7 can wedge the hanging cord B arranged in the mounting hole 6 to fix the hanging cord. In this specific scheme, the wedge 7 is wedge-shaped, the mounting hole 6 has a slope, and the wedge 7 can form wedging to the hanging cord when moving downward in the direction in the figure.

[0024] In order to enable the wedge 7 to maintain the wedging state to the hanging cord, an elastic member 8 is arranged in the wire clamp to form a downward elastic force in the direction in the figure to the wedge 7 to wedge the hanging cord.

[0025] In order to enable the elastic force applied to the wedge 7 by the elastic member 8 to be released and the wedging state to be released, an unlocking member 9 is further arranged in the wire clamp, the unlocking member 9 includes a connecting rod 9-1 and a baffle 9-2 in this embodiment, the baffle 9-2 is arranged in the mounting hole 6 and can be in contact with the top surface of the wedge 7, wherein the connecting rod 9-1 is tubular and can be passed through by the hanging cord, a part of the connecting rod 9-1 is arranged in the mounting hole 6, and a part of the connecting rod 9-1 extends out of the hanging part, the connecting rod 9-1 arranged out of the hanging part facilitates operation of the unlocking member 9, in order to ensure that the wedge 7 can effectively wedge the hanging cord, a window 9-3 is arranged on the connecting rod 9-1 to enable the hanging cord to be in contact with the wedge, so as to achieve wedging to the hanging cord. The elastic member 8 is arranged between the hanging part and the end of the connecting rod 9-1 extending out of the hanging part, so that the elastic member 8 can maintain the downward elastic force in the direction in the figure to the connecting rod 9-1, and drive the baffle 9-2 arranged in the mounting hole 6 to form a downward pressure to the top surface of the wedge 7, and further enable the wedge 7 to maintain the wedging state to the hanging cord. When it is necessary to adjust the length of the hanging cord, the wedging state is released by the unlocking member 9, and the mode is that the connecting rod 9-1 extending out of the hanging part is pushed to overcome the elastic force of the elastic member 8, so that the baffle 9-2 arranged in the mounting hole 6 is separated from the wedge, and further the wedge 7 is released from the wedging state to the hanging cord by pulling the hanging cord, so that the length of the hanging cord can be adjusted.

[0026] or as shown in Figure 4 and Figure 5 The connecting part is arranged as a hanging ring 5, and the hanging cord is connected to the hanging ring 5 through a heart-shaped guard ring. Among them Figure 4 and Figure 5 other structural members are marked with reference to the corresponding structural members in the marking of the first embodiment.

[0027] The above hanging parts only list some structure forms, and the person skilled in the art can select different structure forms from the prior art to connect the hanging strings, which should also be regarded as equivalent technical features.

Claims

1. A messenger cable grip comprising a suspension portion for connecting a messenger cable and a connection portion for connecting a flying line, characterized in that: The suspension part comprises a hook (1) and a pair of hinged cams (2), the hook (1) can be hung on the load cable, the cam (2) can support the load cable and cooperate with the hook (1) to clamp the load cable, a torsion spring (3) is arranged on the cam (2) to keep the cam (2) in the supporting state of the load cable.

2. A messenger wire grip according to claim 1, characterized in that: The rotation directions of the pair of cams (2) for supporting the load cable are opposite.

3. A messenger wire grip according to claim 1, characterized in that: The pair of cams (2) are provided with tooth surfaces (4) at the contact positions with the load cable.

4. A messenger wire grip according to claim 1, characterized in that: The hook (1) is provided with a pair of hooks which are hung on the load cable from the opposite sides of the load cable.

5. A messenger wire grip according to claim 1, characterized in that: The hook (1) is in the shape of U and both ends are fixedly connected.

6. A messenger wire grip according to claim 1, characterized in that: The connecting part is a lifting ring (5).

7. A messenger wire grip according to claim 1, characterized in that: The connecting part comprises a mounting hole (6) through which the lifting string passes, a wedge block (7) is arranged in the mounting hole (6) to wedge the lifting string in the mounting hole (6), an elastic member (8) is further arranged to keep the wedge block (7) in the wedged state, and an unlocking member (9) is arranged to make the wedge block (7) overcome the elastic force of the elastic member (8) to release the wedged state.

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