A cable clamp

Abstract

The present invention discloses a cable clamp, which relates to the field of electrical equipment, and includes a main cable clamp and a secondary cable clamp. Two mounting plates are vertically arranged on one side of the main cable clamp, and the rear ends of the two mounting plates are connected to a fixed plate, and a spring is installed on the plate surface of the fixed plate. The other end of the spring is connected to a slider, and the slider is slidably installed between the two mounting plates; a contact plate is fixed on the lower side of the slider, and a roller is installed in the contact plate, and the roller can contact the cable; the outer side of the roller is evenly divided into at least two color zones along its circumferential direction, and each color zone has a coating of a different color. The present invention solves the technical problem in the prior art that the cable is not easy to be found after sliding relative to the pole, and reduces the potential safety hazards.

Description

Technical Field

[0001] The invention relates to the field of electrical equipment, in particular to a cable clamp. Background Art

[0002] In the power system, the process of line access to substations or end users is a key link, which involves a series of technical details and equipment configurations to ensure the safe and stable operation of the power system.

[0003] Specifically, when the power line is not close to the substation or the user's distribution station, it will pass through various transmission towers or poles, which constitute the aerial corridor for power transmission. When the power line is close to the substation or the user's distribution station, the power line needs to transition from the air to the underground. At present, when the cable enters the substation or is connected to the user end, it needs to be arranged vertically along the pole for a distance and then enter the underground. In the prior art, in order to ensure that the cable transitions smoothly between the vertical section and the underground section, it is necessary to use a cable clamp to fix the cable on the pole. This arrangement can help protect the cable, prevent damage to the cable caused by external factors (such as mechanical damage, flooding, etc.), and ensure the safe and stable operation of the power system. During the construction and maintenance of the power line, the weight of the cable, the instability of the fixing measures, and the quality problems of the cable clamp may cause the cable to slip along the tower in the vertical direction, thereby causing potential safety accidents. Therefore, it is necessary for operators to check whether the cable slips to eliminate safety hazards.

[0004] However, the prior art has the following defects: when the cable slips relative to the pole, it is not easy to be discovered, so there is a certain safety hazard. Summary of the invention

[0005] The embodiment of the present application provides a cable clamp to solve the technical problem in the prior art that it is difficult to be detected after the cable slips relative to the pole, thereby reducing safety hazards.

[0006] In order to solve the above technical problems, the present invention adopts the following technical scheme: a cable clamp, comprising a main cable clamp and a secondary cable clamp, two mounting plates are vertically arranged on one side of the main cable clamp, the rear ends of the two mounting plates are connected to a fixed plate, a spring is installed on the plate surface of the fixed plate, the other end of the spring is connected to a slider, and the slider is horizontally slidably installed between the two mounting plates; a contact plate is fixed on the lower side of the slider, a roller is installed in the contact plate, and the outer circumferential surface of the roller can contact the cable; the outer part of the roller is evenly divided into at least two color zones along its circumferential direction, and each color zone has a coating of a different color.

[0007] The main cable hoop and the auxiliary cable hoop cooperate to fix the cable. Since the slider is slidably installed between the two mounting plates of the main cable hoop and the contact plate is installed on the lower side of the cable, when the cable slides downward relative to the main cable hoop and the auxiliary cable hoop, the roller in the contact plate will rotate. Therefore, by observing whether the color of the roller changes, it can be judged whether the roller slips, which is convenient for operators to check.

[0008] Furthermore, the cable clamp also includes a pole main clamp and a pole auxiliary clamp matched with the pole main clamp, one side of the pole main clamp is fixed to one side of the cable auxiliary clamp; the pole main clamp and the pole auxiliary clamp can cooperate to fix the device to the pole.

[0009] Furthermore, the side walls of the two mounting plates are provided with transversely extending slide grooves, and correspondingly, both sides of the slider are provided with protrusions, which are engaged in the slide grooves of the mounting plates; thereby, the installation of the slider can be achieved, with a simple structure and high stability.

[0010] Furthermore, the fixing plate has a through hole running through its plate surface, in which a screw is fixed, and one end of the screw extends into the interior of the spring along the expansion and contraction direction of the spring; when one end of the screw extends into the interior of the spring, the stability of the spring can be improved to prevent the spring from falling off.

[0011] Furthermore, one side of the contact plate has an arcuate surface, and when the arcuate surface of the contact plate is close to the cable, the outer circumferential surface of the roller can contact the outer circumference of the cable.

[0012] Furthermore, a side of the contact plate facing away from the curved surface is covered with a transparent cover plate.

[0013] Furthermore, a plurality of rollers are installed in the contact plate, and the plurality of rollers are respectively located at different positions in the vertical direction of the contact plate; therefore, when the rollers roll, they are more easily found, thereby facilitating judgment on whether the cable slips.

[0014] Furthermore, rubber pads are provided on the inner sides of the main cable hoop and the auxiliary cable hoop; thereby, the friction coefficient between the main cable hoop, the auxiliary cable hoop and the cable can be increased, making it easier to fix the cable.

[0015] It can be seen from the above technical solutions that the present invention has at least the following technical effects or advantages:

[0016] The main cable hoop and the auxiliary cable hoop cooperate to fix the cable. Since the slider is slidably installed between the two mounting plates of the main cable hoop and the contact plate is installed on the lower side of the cable, when the cable slides downward relative to the main cable hoop and the auxiliary cable hoop, the roller in the contact plate will rotate. Therefore, by observing whether the color of the roller changes, it can be judged whether the roller slips, which is convenient for operators to check. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for the description. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work:

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a structural schematic diagram of the main cable clamp;

[0020] Figure 3 This is a schematic diagram of the structure of the cable main hoop (the slider and contact plate are omitted);

[0021] Figure 4 Schematic diagram of the structure of the slider and contact plate Figure 1 ;

[0022] Figure 5 Schematic diagram of the structure of the slider and contact plate Figure 2 .

[0023] Explanation of the reference numerals: 1. main hoop of the pole, 2. auxiliary hoop of the pole, 3. main hoop of the cable, 4. auxiliary hoop of the cable, 5. mounting plate, 6. slider, 7. spring, 8. slide groove, 9. protrusion, 10. fixing plate, 11. screw, 12. contact plate, 13. roller, 14. transparent cover. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0025] The invention discloses a cable clamp, such as Figure 1 As shown, it comprises a pole main clamp 1, a pole sub-clamp 2, a cable main clamp 3 and a cable sub-clamp 4. The pole main clamp 1 and the cable sub-clamp 4 are connected as one body, the pole main clamp 1 cooperates with the pole sub-clamp 2 to fix the cable clamp to the pole, and the cable main clamp 3 cooperates with the cable sub-clamp 4 to clamp the cable.

[0026] like Figure 1As shown, the pole main hoop 1 and the pole auxiliary hoop 2 both have an arc-shaped inner wall. When the pole main hoop 1 and the pole auxiliary hoop 2 are connected as one, they can be nested in the outer periphery of the pole and fixed to the pole. Among them, the outer periphery of the cable main hoop 3 is fixed to the outer periphery of the cable auxiliary hoop 4, so that when the cable is clamped by the cable main hoop 3 and the cable auxiliary hoop 4, it can be relatively fixed to the pole. It should be understood that the inner side of the cable main hoop 3 and the cable auxiliary hoop 4 can be provided with a rubber pad, thereby increasing the friction coefficient of the cable and facilitating the fixing of the cable.

[0027] like Figure 2 As shown, two mounting plates 5 are arranged on one side of the cable main hoop 3. The two mounting plates 5 are arranged vertically, and a cavity is formed between the two mounting plates 5. A slider 6 is horizontally slidably installed in the cavity, and one side of the slider 6 is pressed by a spring 7. Under the action of the elastic force of the spring 7, the slider 6 can move toward the direction close to the cable.

[0028] like Figure 2 and Figure 3 As shown, the inner walls of the two mounting plates 5 are provided with a sliding groove 8 extending transversely, and correspondingly, protrusions 9 are provided on both sides of the slider 6, and the protrusions 9 are located in the sliding groove 8 of the inner wall of the mounting plate 5, thereby enabling the slider 6 to be slidably installed between the two mounting plates 5. In addition, a fixing plate 10 is connected to the rear ends of the two mounting plates 5, and the plate surface of one side of the fixing plate 10 abuts against one end of the spring 7, and the other end of the spring 7 is connected to one side of the slider 6. Therefore, when the cable main hoop 3 and the cable auxiliary hoop 4 cooperate to fix the cable, the spring 7 can provide a pre-tightening force for the slider 6, so that the slider 6 is squeezed toward the cable.

[0029] The fixing plate 10 has a through hole penetrating the plate surface thereof, the through hole has an internal thread and is fixed with a screw 11, and when the screw 11 penetrates the through hole on the fixing plate 10, one end of the screw 11 extends into the inside of the spring 7 along the direction of the spring 7 expansion and contraction. In addition, a circular hole is provided on the side of the slider 6 that contacts the spring 7, and one end of the spring 7 abuts against the circular hole on the slider 6, thereby maintaining the stability of the spring 7, and when the spring 7 creeps, the spring 7 can be replaced by removing the screw 11 on the fixing plate 10.

[0030] like Figure 4As shown, in this embodiment, a contact plate 12 is fixed to the lower side of the slider 6, and a roller 13 is installed in the contact plate 12. When the slider 6 squeezes the cable, the roller 13 in the contact plate 12 can contact the cable. Therefore, when the cable slides up and down relative to the cable main hoop 3 and the cable auxiliary hoop 4, the roller 13 can roll in the contact plate 12. The outer periphery of the roller 13 has at least two color zones, and the color zones on the outer periphery of the roller 13 are arranged along the circumferential direction, and each color zone has a coating of different colors. When the cable slides up and down, the roller 13 rolls, and as the roller 13 rolls, different color zones will contact the outer periphery of the cable. Therefore, when the device is used to fix the cable, the roller 13 can be pre-adjusted so that a certain color zone of the roller 13 faces outward and is recorded. When the color zone of the roller 13 facing outward changes, it can be determined that the cable has slipped vertically.

[0031] Specifically, in this embodiment, the contact plate 12 has a through hole penetrating its two plate surfaces, and the roller 13 is installed in the through hole of the contact plate 12, and the axial direction of the roller 13 is perpendicular to the extension direction of the cable. Therefore, when the cable slips, the cable can be rotated, and the color of the outer periphery of the roller 13 can be observed through the through hole on the contact plate 12. In the embodiment, the roller 13 can also be replaced by a ball.

[0032] like Figure 4 , Figure 5 As shown, one side of the contact plate 12 is an arc-shaped surface, and the arc-shaped surface is the side of the contact plate 12 close to the cable, so that the contact plate 12 can better cooperate with the cable, and the outer periphery of the roller 13 is convenient for contacting the cable. In addition, a plurality of rollers 13 are installed in the contact plate 12, and the plurality of rollers 13 are respectively located at different positions in the vertical direction of the contact plate 12. This makes it easier to observe the color of the roller 13, and then determine whether the cable has slipped.

[0033] In this embodiment, if Figure 4 As shown, one surface of the contact plate 12 is also covered with a transparent cover plate 14, and the transparent cover plate 14 is located on the side of the contact plate 12 facing away from its curved surface. The roller 13 in the contact plate 12 can be covered by the transparent cover plate 14, thereby protecting the roller 13. Specifically, the transparent cover plate 14 is a convex lens protruding outward, so that the color of the roller 13 can be observed more easily.

[0034] In the description of the present invention, the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the purpose of describing the present invention rather than requiring the present invention to be constructed or operated in a specific position, and therefore should not be construed as limiting the present invention. The terms "connected" and "connected" in the present invention should be understood in a broad sense, for example, it can be a connection or a detachable connection; it can be a direct connection or an indirect connection through an intermediate component. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0035] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in their embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novelties disclosed herein.

Claims

1. A cable clamp, comprising a main cable clamp (3) and a secondary cable clamp (4), characterized in that: Two mounting plates (5) are vertically arranged on one side of the cable main hoop (3); the rear ends of the two mounting plates (5) are connected to a fixing plate (10); a spring (7) is installed on the plate surface of the fixing plate (10); the other end of the spring (7) is connected to a slider (6); the slider (6) is horizontally slidably installed between the two mounting plates (5); a contact plate (12) is fixed on the lower side of the slider (6); a roller (13) is installed inside the contact plate (12); the outer circumferential surface of the roller (13) is capable of contacting the cable; the outer portion of the roller (13) is evenly divided into at least two color zones along its circumferential direction, and each color zone has a coating of a different color; When the cable slides downward relative to the main cable hoop (3) and the auxiliary cable hoop (4), the roller (13) in the contact plate (12) will rotate, so by observing whether the color of the roller (13) changes, it can be determined whether the roller (13) has slipped; and further, whether the cable has slipped; The fixing plate (10) has a through hole penetrating its plate surface, a screw (11) is fixed in the through hole, and one end of the screw (11) extends into the interior of the spring (7) along the expansion and contraction direction of the spring (7).

2. A cable clamp according to claim 1, characterized in that: The cable clamp further comprises a pole main clamp (1) and a pole auxiliary clamp (2) matched with the pole main clamp (1), and one side of the pole main clamp (1) is fixed to one side of the cable auxiliary clamp (4).

3. A cable clamp according to claim 1, characterized in that: The side walls of the two mounting plates (5) are each provided with a laterally extending slide groove (8), and correspondingly, both sides of the sliding block (6) are each provided with a protrusion (9), the protrusion (9) being engaged in the slide groove (8) of the mounting plate (5).

4. A cable clamp according to claim 1, characterized in that: One side of the contact plate (12) has an arcuate surface, and when the arcuate surface of the contact plate (12) is close to the cable, the outer circumferential surface of the roller (13) can contact the outer circumference of the cable.

5. A cable clamp according to claim 4, characterized in that: The side of the contact plate (12) facing away from the curved surface is covered with a transparent cover plate (14).

6. A cable clamp according to any one of claims 1 to 5, characterized in that: A plurality of rollers (13) are installed in the contact plate (12), and the plurality of rollers (13) are respectively located at different positions in the vertical direction of the contact plate (12).

7. The cable clamp according to claim 1, characterized in that: The inner sides of the main cable hoop (3) and the auxiliary cable hoop (4) are provided with rubber pads.

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