Special electric fixing clamp for special-shaped parallel groove clamp suitable for hot-line work

Abstract

The invention provides an electric fixing clamp special for a special-shaped parallel groove clamp suitable for hot-line work, and relates to the technical field of hot-line work. Comprising a frame body and at least one pair of clamping mechanisms, and each clamping mechanism comprises a locking hook and a driving unit; the two clamping mechanisms in the pair of clamping mechanisms are installed on the reverse side faces of the opposite faces of the two vertical plates correspondingly. The locking hook comprises a locking block, a body block and a connecting block which are connected in sequence, and the locking block and the connecting block are obliquely connected to the body block and incline towards the opposite vertical plates; a through groove is formed in the plate face of the vertical plate, the body block and the locking block are located in the through groove, the body block is rotationally installed in the through groove, the driving unit comprises a sliding block and a driving piece, the sliding block is provided with an inclined face, the sliding block is installed on the plate face of the vertical plate in a sliding mode, the inclined face abuts against the connecting block, and the driving piece drives the sliding block to do linear reciprocating motion on the vertical plate. The invention has the beneficial effects of strong compatibility and firmness.

Description

Technical Field

[0001] The present invention relates to the technical field of live working, and particularly relates to a special electric fixing jig for a special-shaped parallel groove clamp suitable for live working. Background Art

[0002] The special-shaped parallel groove clamp is a cable connection jig. As Figure 1 shown in [reference], it is composed of a metal clamp body a at the upper part, a metal clamp body b at the lower part, and a screw bolt c. It is mainly used for connecting cables of different specifications and can be used for cable parallel connection and the insertion of trench pipe lines. The special-shaped parallel groove clamp realizes connection by clamping the cable and has the advantages of simple structure and convenient installation.

[0003] During the use of the special-shaped parallel groove clamp, it also needs to be fixed in cooperation with a special-shaped parallel groove clamp jig. The existing fixing jigs of the special-shaped parallel groove clamp jig are basically in the form of a manually operated quick clamp. The operation process is complex and the structural reliability is poor. They all fix the metal clamp body a (as Figure 1 shown in [reference]). The main body structures of the upper parts of various clamps are quite different, and the adaptability of the jig is poor. As a result, when corresponding to clamps with different structures, the clamping is not firm enough and the reliability is poor. Summary of the Invention

[0004] The purpose of the present invention is to propose a special electric fixing jig for a special-shaped parallel groove clamp suitable for live working, which takes into account the adaptability of the same model of special-shaped parallel groove clamps from various manufacturers by fixing the metal clamp body b at the lower part, and has strong compatibility.

[0005] The present invention proposes a special electric fixing jig for a special-shaped parallel groove clamp suitable for live working, and its improvement lies in: including a frame body and at least a pair of clamping mechanisms, the clamping mechanism includes a locking hook and a driving unit; the frame body includes two vertical plates with opposite and parallel surfaces and a support plate vertically connected between the two vertical plates; the two clamping mechanisms in the pair of clamping mechanisms are respectively installed on the opposite sides of the opposite surfaces of the two vertical plates; the locking hook includes a locking block, a body block and a connecting block connected in sequence, the locking block and the connecting block are obliquely connected to the body block and the inclined direction is towards the opposite vertical plate; a through groove is opened on the surface of the vertical plate, the body block and the locking block are located in the through groove and the body block is rotatably installed in the through groove, the driving unit includes a slider and a driving member, the slider has an inclined surface, the slider is slidably installed on the surface of the vertical plate and the inclined surface abuts against the connecting block, and the driving member drives the slider to linearly reciprocate on the vertical plate.

[0006] A preferred technical solution of the present invention: The slider is a trapezoidal block, and the inclined surface of the trapezoidal block abuts against the connecting block.

[0007] Preferred technical solution of the present invention: The driving member includes an electric push rod and a bolt. Threaded holes are provided on the electric push rod and the slider, and the bolt passes through the threaded holes on the electric push rod and the slider.

[0008] Preferred technical solution of the present invention: It further includes two protective plates. The two protective plates are vertically connected to the support plate, and the two protective plates and the support plate enclose to form a storage space.

[0009] Preferred technical solution of the present invention: It further includes a rotating shaft. Through holes are provided on both sides of the through groove and on the main body block, and the rotating shaft passes through the through hole of the main body block and both ends of the rotating shaft are respectively located in the through holes on both sides of the through groove.

[0010] Preferred technical solution of the present invention: The driving member is a motor and a lead screw. The lead screw is installed on the motor, the lead screw is connected to the slider, and the lead screw drives the slider to move back and forth.

[0011] Preferred technical solution of the present invention: It further includes a reset unit. The reset unit includes a spring and a cover plate. The cover plate is fixedly installed on the vertical plate and the spring is located between the cover plate and the locking block. Both ends of the spring are respectively connected to the cover plate and the locking block.

[0012] The beneficial effects of the present invention are as follows: The present invention uses a driving member to push the slider, and gradually pushes the locking hook through the inclined surface of the slider to clamp the metal clip body b located on the frame. The clip of the metal clip body b clamps the entire special-shaped parallel groove clamp. Compared with the traditional fixture for fixing the metal clip body a, it avoids the problems of poor clamping firmness and reliability caused by the large difference in the main body structure of the upper half of the clip and poor adaptability of the fixture when corresponding to clips with different structures. Moreover, the inclined surface of the slider gradually performs lateral limit on the connecting block, so that the locking block can only face the special-shaped parallel groove clamp, with mechanical self-locking ability to prevent the clip from accidentally coming off. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings incorporated into the specification and constituting a part of the specification illustrate embodiments of the present invention and, together with the description, are used to explain the principles of the present invention. In these drawings, like reference numerals are used to represent like elements. The following drawings are some embodiments of the present invention, not all embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0014] Figure 1 It is a structural schematic diagram of a special-shaped parallel groove clamp.

[0015] Figure 2 It is a cross-sectional view of a special electric fixing fixture for a special-shaped parallel groove clamp applicable to live working of the present invention.

[0016] Figure 3Cross-sectional view of a special electric fixing fixture for a special-shaped parallel groove clamp suitable for live working according to the present invention when in a clamping state.

[0017] Figure 4 Schematic structural diagram of a special electric fixing fixture for a special-shaped parallel groove clamp suitable for live working according to the present invention.

[0018] Figure 5 Exploded schematic structural diagram of a special electric fixing fixture for a special-shaped parallel groove clamp suitable for live working according to the present invention.

[0019] Figure 6 Schematic structural diagram of a locking hook in a special electric fixing fixture for a special-shaped parallel groove clamp suitable for live working according to the present invention.

[0020] In the figure: 100, frame body; 200, locking hook; 300, driving unit; 400, reset unit; 101, vertical plate; 102, support plate; 103, protective plate; 201, locking block; 202, body block; 203, connecting block; 204, rotating shaft; 301, driving member; 302, bolt; 303, slider; 304, slider pressing plate; 401, cover plate; 402, spring. Detailed implementation manners

[0021] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention. It should be noted that, without conflict, the embodiments and features in the embodiments of the present application can be arbitrarily combined with each other.

[0022] Refer to Figures 2 - 6As shown in the figure, the present invention provides a special electric fixing clamp for a special-shaped parallel groove clamp suitable for live working, which includes a frame body 100 and a pair of clamping mechanisms. The clamping mechanism includes a locking hook 200 and a driving unit 300. The frame body 100 includes two vertical plates 101 with opposite and parallel plate surfaces and a support plate 102 vertically connected between the two vertical plates 101. The two clamping mechanisms in the pair of clamping mechanisms are respectively installed on the opposite sides of the opposite surfaces of the two vertical plates 101. The locking hook 200 includes a locking block 201, a body block 202 and a connecting block 203 connected in sequence. The locking block 201 and the connecting block 203 are inclinedly connected to the body block 202 and the inclined direction is towards the opposite vertical plate 101. A through groove is formed on the plate surface of the vertical plate 101. The body block 202 and the locking block 201 are located in the through groove and the body block 202 is rotatably installed in the through groove. The driving unit 300 includes a slider 303 and a driving member 301. The slider 303 has an inclined surface. The slider 303 is slidably installed on the plate surface of the vertical plate 101 and the inclined surface abuts against the connecting block 203. The slider 303 is laterally fixed on the vertical plate 101 by a slider pressing plate 304 outside the slider 303. The driving member 301 drives the slider 303 to linearly reciprocate on the vertical plate 101.

[0023] In the present invention, by loading the special-shaped parallel groove clamp into the device in the unlocked state, the driving member 301 drives the slider 303 to move on the vertical plate 101. During the movement of the slider 303, its inclined surface gradually applies a jacking force to the connecting block 203 of the locking hook 200. Since the body block 202 is rotatably connected in the through groove, when the connecting block 203 on one side of the body block 202 moves outward, the locking block 201 moves towards the space between the two vertical plates 101. During the movement of the locking block 201, the lower part of the special-shaped parallel groove clamp located in the device is clamped. The locking hook 200 achieves a self-locking effect under the combined action of the rotating shaft 204 and the upper plane of the slider 303. The contact point of the connecting block 203 on the slider 303, as the slider 303 moves, the contact point gradually becomes higher on the inclined surface height of the slider 303, so that the locking block 201 on the other side of the body block 202 can only move towards the special-shaped parallel groove clamp until the connecting block 203 contacts the upper plane of the slider 303. At this time, since the slider 303 blocks the direction in which the connecting block 203 needs to move to be unlocked, it has mechanical self-locking ability to prevent the clamp from accidentally falling off. By clamping the metal clamp body b at the lower part of the special-shaped parallel groove clamp, it is possible to avoid the problems of insufficient clamping and poor reliability when clamping different structures of clamps due to the large difference in the main structure of the upper half of the clamp and poor adaptability of the clamp.

[0024] The present device can conveniently and quickly perform electric clamping and electric loosening on the special-shaped parallel groove clamp, so as to clamp and lift the special-shaped parallel groove clamp to the overhead line where connection is required for fastening. After the fastening operation is completed, the special-shaped parallel groove clamp is loosened and the fixture is removed.

[0025] For the locking hook 200 to clamp the metal clamp body b, it can be achieved through the design between the vertical plate 101 and the support plate 102 on the frame body 100, so that the locking block 201 of the locking hook 200 aligns with the position for clamping the clamp body b.

[0026] Furthermore, in order to make the clamping more stable when the present device is in the clamping state, the slider 303 is a trapezoidal block, and the inclined surface of the trapezoidal block abuts against the connecting block 203. When the contact part between the connecting block 203 and the slider 303 gradually moves from the inclined surface of the slider 303 to the plane of the slider 303, the planar structure of the slider 303 can provide a more stable supporting effect on the connecting block 203 to make it stable.

[0027] Specifically, the driving member 301 includes an electric push rod and a bolt 302. The electric push rod and the slider 303 are provided with screw holes, and the bolt 302 passes through the screw holes on the electric push rod and the slider 303. At the same time, the driving member 301 is not limited to the electric push rod. In other embodiments, the driving member 301 can adopt a motor and a lead screw. The lead screw is installed on the motor, and the lead screw is connected to the slider 303, and the lead screw drives the slider 303 to move back and forth.

[0028] In addition, the device provided by the present invention further includes two protective plates 103. The two protective plates 103 are vertically connected to the support plate 102. The two protective plates 103 and the support plate 102 enclose a storage space, and the storage space is used to place the special-shaped parallel groove clamp so that it is firmly located in the frame body 100.

[0029] For the rotation of the locking hook 200, the device provided by the present invention further includes a rotating shaft 204. Through holes are opened on both sides of the through groove and on the body block 202, and the rotating shaft 204 passes through the through hole of the body block 202 and both ends of the rotating shaft 204 are respectively located in the through holes on both sides of the through groove.

[0030] Further, when the device is used up and the special-shaped parallel groove clamp needs to be loosened, the slider 303 moves downward under the drive of the driving member 301. At this time, the height of the contact between the inclined surface of the slider 303 and the connecting block 203 gradually decreases. To facilitate the automatic return of the locking block 201 to its original position without manual adjustment, the device provided by the present invention further includes a reset unit 400. The reset unit 400 includes a spring 402 and a cover plate 401. The cover plate 401 is fixedly installed on the vertical plate 101 and the spring 402 is located between the cover plate 401 and the locking block 201. The two ends of the spring 402 are respectively connected to the cover plate 401 and the locking block 201. During the movement of the slider 303, the inclined surface of the slider 303 gradually loses the supporting effect on the connecting block 203. At this time, under the action of the spring 402, the connecting block 203 is pushed inward, so that the locking block 201 located on the other side of the body block 202 automatically moves outward, realizing automatic decoupling without manual operation.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A special electric fixing fixture for a special-shaped parallel groove clamp suitable for live working, characterized in that: It includes a frame body (100) and at least a pair of clamping mechanisms. The clamping mechanism includes a locking hook (200) and a driving unit (300); the frame body (100) includes two vertical plates (101) with opposite and parallel plate surfaces and a support plate (102) vertically connected between the two vertical plates (101); the two clamping mechanisms in the pair of clamping mechanisms are respectively installed on the opposite sides of the opposite surfaces of the two vertical plates (101); the locking hook (200) includes a locking block (201), a body block (202) and a connecting block (203) connected in sequence. The locking block (201) and the connecting block (203) are obliquely connected to the body block (202) and the oblique direction is towards the opposite vertical plate (101); through grooves are formed on the plate surfaces of the vertical plates (101). The body block (202) and the locking block (201) are located in the through grooves and the body block (202) is rotatably installed in the through grooves. The driving unit (300) includes a slider (303) and a driving member (301). The slider (303) has an inclined surface, the slider (303) is slidably installed on the plate surface of the vertical plate (101) and the inclined surface abuts against the connecting block (203), and the driving member (301) drives the slider (303) to linearly reciprocate on the vertical plate (101).

2. The special electric fixing jig for the special-shaped parallel groove clamp applicable to live working according to claim 1, characterized in that: The slider (303) is a trapezoidal block, and the inclined surface of the trapezoidal block abuts against the connecting block (203).

3. The special electric fixing clamp for the special-shaped parallel groove clamp applicable to live working according to claim 1, characterized in that: The driving member (301) includes an electric push rod and a bolt (302). The electric push rod and the slider (303) are provided with screw holes, and the bolt (302) passes through the screw holes on the electric push rod and the slider (303).

4. The special electric fixing clamp for the special-shaped parallel groove clamp applicable to live working according to claim 1, characterized in that: It further includes two protective plates (103). The two protective plates (103) are vertically connected to the support plate (102), and the two protective plates (103) and the support plate (102) enclose a storage space.

5. The special electric fixing clamp for the special-shaped parallel groove clamp applicable to live working according to claim 1, characterized in that: It further includes a rotating shaft (204). Through holes are formed on both sides of the through groove and on the body block (202). The rotating shaft (204) passes through the through hole of the body block (202) and both ends of the rotating shaft (204) are respectively located in the through holes on both sides of the through groove.

6. The special electric fixing clamp for the special-shaped parallel groove clamp applicable to live working according to claim 1, characterized in that: The driving member (301) is a motor and a lead screw. The lead screw is installed on the motor, the lead screw is connected to the slider (303), and the lead screw drives the slider (303) to reciprocate.

7. The special electric fixing fixture for the special-shaped parallel groove clamp applicable to live working according to claim 1, wherein: It further includes a reset unit (400). The reset unit (400) includes a spring (402) and a cover plate (401). The cover plate (401) is fixedly installed on the vertical plate (101) and the spring (402) is located between the cover plate (401) and the locking block (201). Both ends of the spring (402) are respectively connected to the cover plate (401) and the locking block (201).

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