Clamping and fixing device for thermal shrinkage insulation box

Abstract

The utility model discloses a clamping and fixing device for a thermal shrinkage insulation box, which comprises a lower cover plate, an upper cover plate is arranged at the upper end of the lower cover plate, and arc-shaped joints are fixedly arranged at the front end and the rear end of the lower cover plate and the front end and the rear end of the upper cover plate; the mounting base is arranged on one side of the arc-shaped connector, a sliding groove is formed in the mounting base, a moving block is arranged at the lower end of the mounting base, the upper end of the moving block extends into the sliding groove, limiting blocks are fixedly arranged at the front end and the rear end of the exterior of the moving block, and the limiting blocks and the sliding groove are in sliding limiting; the structure solves the problems that a clamping device is difficult to adapt to thermal shrinkage insulation boxes with different sizes, and the thermal shrinkage insulation boxes are not flexible to position and fix.

Description

Technical Field

[0001] The utility model relates to the technical field of heat shrinkable insulation boxes, in particular to a clamping and fixing device for heat shrinkable insulation boxes. Background Art

[0002] The heat shrink insulation box is a commonly used equipment in power engineering, mainly used for insulation and sealing of cable joints. Its working principle is based on the characteristics of heat shrinkable materials, that is, after being heated to a certain temperature, the material will shrink and fit tightly to the surface of the cable joint to form a solid insulation layer. The heat shrink insulation box is made of high-quality insulating material, which can effectively isolate the cable joint from the external environment. The heat shrink insulation box can fit tightly to the cable joint during the shrinking process. When using the heat shrink insulation box, just put the box body on the cable joint, and then heat it to a certain temperature with a heater to achieve quick installation. In power engineering, heat shrink insulation boxes are widely used in insulation treatment of various cable joints, such as high-voltage cable intermediate joints, terminal joints, etc., where the clamping and fixing device prevents the heat shrink insulation box from opening after long-term use.

[0003] For example, the Chinese patent "A Heat Shrinkable Insulation Box" with announcement number CN215265757U includes a first cover plate, the first cover plate is provided with a connecting plate, the connecting plate is provided with a second cover plate, the first cover plate is provided with a first clamping plate, the second cover plate is provided with a second clamping plate, the first clamping plate and the second clamping plate are provided with a through hole, a limit rod is provided in the through hole, and a clamping ball is fixedly connected to both ends of the limit rod; the first cover plate and the second cover plate are both provided with an insulating column sleeve, a wire port is provided between the first cover plate and the second cover plate, a limit rod is provided between two adjacent insulating column sleeves, the first cover plate and the second cover plate are both provided with a friction pad, a clamping plate is provided on the outer side of the first cover plate, two clamping plates are provided, the clamping plate is fixedly connected with a clamping block, the clamping plate is fixedly connected with a fixing plate, the fixing plate is fixedly connected with a hinge block, the two adjacent hinge blocks are hinged to each other, a central axis is provided in the hinge block, the central axis is provided with a torsion spring, the hinge block is fixedly connected with a support plate, the support plate is fixedly connected to the fixing plate, and the fixing plate is fixedly connected with a pressing plate.

[0004] Although the above-mentioned prior art can realize the clamping and fixing of the heat shrinkable insulation box, in actual use, on the one hand, the clamping device is difficult to adapt to heat shrinkable insulation boxes of different sizes. After the heat shrinkable insulation box is installed, it is necessary to use a corresponding clamping device according to the size of the heat shrinkable insulation box, resulting in the need for a corresponding clamping device for heat shrinkable insulation boxes of different sizes, thereby reducing the adaptability of the clamping device to heat shrinkable insulation boxes of different sizes. On the other hand, the positioning and fixing of the heat shrinkable insulation box is not flexible enough. After the heat shrinkable insulation box covers the cable connector, the operator needs to hold the heat shrinkable insulation box and clamp it, resulting in the need for multiple operators to cooperate in the clamping and fixing of the heat shrinkable insulation box, thereby reducing the construction efficiency. Therefore, it does not meet the existing needs. In this regard, we propose a clamping and fixing device for a heat shrinkable insulation box. Utility Model Content

[0005] The utility model aims to provide a clamping and fixing device for a heat shrinkable insulation box, so as to solve the problems that the clamping device proposed in the above background technology is difficult to adapt to heat shrinkable insulation boxes of different sizes and the positioning and fixing of the heat shrinkable insulation box is not flexible enough.

[0006] To achieve the above object, the utility model provides the following technical solution: a clamping and fixing device for a heat shrinkable insulation box, comprising a lower cover plate, an upper cover plate is arranged at the upper end of the lower cover plate, and arc-shaped joints are fixedly arranged at the front and rear ends of the lower cover plate and the upper cover plate; and further comprising:

[0007] A mounting seat is arranged on one side of the arc-shaped joint, a slide groove is arranged inside the mounting seat, a moving block is arranged at the lower end of the mounting seat, and the upper end of the moving block extends to the inside of the slide groove, and limit blocks are fixedly arranged at the front and rear ends outside the moving block, and the limit blocks and the slide groove slide to limit.

[0008] Preferably, a connecting rod is provided on one side of the mounting seat and the moving block close to the arc-shaped joint, and the connecting rod is fixedly connected to the mounting seat and the moving block respectively, and an arc-shaped clamping rod is provided on one side of the connecting rod close to the arc-shaped joint, and the arc-shaped clamping rod is fixedly connected to the connecting rod.

[0009] Preferably, a threaded rod is provided at the upper end of the connecting rod on the mounting seat, the lower end of the threaded rod passes through the connecting rod on the mounting seat and extends to the upper end of the connecting rod on the moving block, and the threaded rod is rotatably connected to the connecting rod on the moving block.

[0010] Preferably, a support spring is fixedly arranged outside the threaded rod between the connecting rod on the moving block and the connecting rod on the mounting seat.

[0011] Preferably, positioning grooves are provided inside both sides of the lower cover plate, and T-shaped limit strips are provided inside the positioning grooves. The upper ends of the T-shaped limit strips extend to the outside of the positioning grooves and are fixedly connected to the upper cover plate.

[0012] Preferably, a snap-in groove is provided inside the rear end of the T-shaped limit strip.

[0013] Preferably, a clamping block is provided inside the clamping slot, the lower end of the clamping block extends to the bottom of the clamping slot and is fixedly connected to the inner wall of the positioning slot, and the clamping block is clamped and fixed to the clamping slot.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model can adjust the spacing of the arc-shaped clamping rods through the mounting seat and the moving block. When the heat shrinkable insulation box is positioned and fixed, the arc-shaped clamping rod is sleeved on the outside of the arc-shaped joint. At this time, the threaded rod is rotated again, so that the threaded rod drives the mounting seat to move downward through the external thread and the distance between the mounting seat and the moving block is gradually reduced. At the same time, the arc-shaped clamping rods arranged on the mounting seat and the moving block move together with the mounting seat and the moving block until the arc-shaped clamping rods on the mounting seat and the moving block contact and squeeze the outer wall of the arc-shaped joint, so that the clamping device can be used on heat shrinkable insulation boxes of different sizes, thereby improving the adaptability of the clamping device to heat shrinkable insulation boxes of different sizes.

[0016] 2. The utility model can quickly position and fix the heat shrinkable insulation box through the T-shaped limit strip and the positioning groove. When installing the heat shrinkable insulation box, first align the T-shaped limit strip on the upper cover plate with the opening of the positioning groove on the lower cover plate and push it into the positioning groove, and continue to push the upper cover plate until the clamping block inside the positioning groove enters the clamping groove on the T-shaped limit strip. At this time, the lower cover plate and the upper cover plate are positioned and fixed by clamping the clamping groove and the clamping block, avoiding the need for multiple operators to position and fix the heat shrinkable insulation box, thereby improving the construction efficiency.

[0017] 3. The utility model is provided with a spring, and the distance between the connecting rods can be adjusted by the elasticity of the spring. When the clamping device is in use, the connecting rods at both ends are moved toward each other by rotating the threaded rod and the threads on the outside of the threaded rod are used. At this time, the support spring between the connecting rods is squeezed and deformed. When the support spring is squeezed and deformed, the impact energy is absorbed, so that the support spring can play a buffering role and adjust the distance between the connecting rods, which helps to maintain the stability and balance of the connecting rods during the movement, thereby improving the working efficiency of the clamping device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view of the internal structure of the utility model;

[0019] Figure 2 It is a top view of the internal structure of the utility model;

[0020] Figure 3 This is a front view of the positioning structure of the utility model;

[0021] Figure 4 It is a partial enlarged view of the positioning structure of the utility model;

[0022] Figure 5 For the utility model Figure 3 A partial enlarged view of area A.

[0023] In the figure: 1. lower cover plate; 2. upper cover plate; 3. arc joint; 4. positioning groove; 5. T-shaped limit strip; 6. mounting seat; 7. moving block; 8. slide groove; 9. limit block; 10. connecting rod; 11. arc clamping rod; 12. threaded rod; 13. support spring; 14. clamping block; 15. clamping groove. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below 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, rather than all of the embodiments.

[0025] See also Figure 1-5 The utility model provides an embodiment: a clamping and fixing device for a heat shrinkable insulation box, comprising a lower cover plate 1, an upper cover plate 2 is arranged at the upper end of the lower cover plate 1, and arc-shaped joints 3 are fixedly arranged at the front and rear ends of the lower cover plate 1 and the upper cover plate 2; and further comprising:

[0026] The mounting seat 6 is arranged on one side of the arc joint 3, and a slide groove 8 is arranged inside the mounting seat 6. A moving block 7 is arranged at the lower end of the mounting seat 6, and the upper end of the moving block 7 extends to the inside of the slide groove 8. Limiting blocks 9 are fixedly arranged at the front and rear ends outside the moving block 7, and the limiting blocks 9 and the slide groove 8 are slidably limited.

[0027] During use, after the heat shrinkable insulation box is positioned and fixed, the arc clamping rod 11 is sleeved on the outside of the arc joint 3. At this time, the threaded rod 12 is rotated so that the threaded rod 12 drives the mounting seat 6 to move downward through the external thread and the distance between the mounting seat 6 and the moving block 7 is gradually reduced. At the same time, the arc clamping rod 11 arranged on the mounting seat 6 and the moving block 7 moves together with the mounting seat 6 and the moving block 7 until the arc clamping rod 11 on the mounting seat 6 and the moving block 7 contacts and squeezes the outer wall of the arc joint 3, so that the clamping device can be used on heat shrinkable insulation boxes of different sizes.

[0028] See also Figure 1A connecting rod 10 is provided on one side of the mounting seat 6 and the moving block 7 close to the arc joint 3, and the connecting rod 10 is fixedly connected to the mounting seat 6 and the moving block 7 respectively. An arc-shaped clamping rod 11 is provided on one side of the connecting rod 10 close to the arc joint 3, and the arc-shaped clamping rod 11 is fixedly connected to the connecting rod 10, so that the arc joint 3 can be clamped and fixed by the arc-shaped clamping rod 11.

[0029] See also Figure 1 A threaded rod 12 is provided at the upper end of the connecting rod 10 on the mounting seat 6, and the lower end of the threaded rod 12 passes through the connecting rod 10 on the mounting seat 6 and extends to the upper end of the connecting rod 10 on the moving block 7, and the threaded rod 12 is rotatably connected to the connecting rod 10 on the moving block 7, so that the mounting seat 6 and the moving block 7 can be driven to move by the threaded rod 12.

[0030] See also Figure 1 and Figure 3 The threaded rod 12 is located between the connecting rod 10 on the moving block 7 and the connecting rod 10 on the mounting seat 6, and a support spring 13 is fixedly arranged outside, so that the mounting seat 6 and the moving block 7 can be more stable during the movement through the support spring 13.

[0031] See also Figure 1 and Figure 2 , positioning grooves 4 are provided inside both sides of the lower cover plate 1, and T-shaped limit strips 5 are provided inside the positioning grooves 4. The upper ends of the T-shaped limit strips 5 extend to the outside of the positioning grooves 4 and are fixedly connected to the upper cover plate 2, so that the heat shrinkable insulation box can be quickly positioned through the positioning grooves 4 and the T-shaped limit strips 5.

[0032] See also Figure 4 and Figure 5 A clamping groove 15 is provided inside the rear end of the T-shaped limit strip 5 to facilitate clamping and fixing of the clamping block 14 through the clamping groove 15 .

[0033] See also Figure 4 and Figure 5 A clamping block 14 is provided inside the clamping groove 15, and the lower end of the clamping block 14 extends to the bottom of the clamping groove 15 and is fixedly connected to the inner wall of the positioning groove 4, and the clamping block 14 is clamped and fixed with the clamping groove 15, so that the heat shrinkable insulation box can be positioned and fixed through the cooperation between the clamping block 14 and the clamping groove 15.

[0034] Working principle: When installing the heat shrink insulation box, first align the T-shaped limit strip 5 on the upper cover plate 2 with the opening of the positioning groove 4 on the lower cover plate 1 and push it into the positioning groove 4, and continue to push the upper cover plate 2 until the clamping block 14 inside the positioning groove 4 enters the clamping groove 15 on the T-shaped limit strip 5. At this time, the lower cover plate 1 and the upper cover plate 2 are positioned and fixed by clamping the clamping groove 15 and the clamping block 14. When the clamping device is used, the threaded rod 12 is rotated and the connecting rods 10 at both ends are moved toward each other through the threads on the outside of the threaded rod 12. At this time, the support springs 13 between the connecting rods 10 are squeezed and deformed. When the support springs 13 are squeezed and deformed, they absorb impact energy, so that the support springs 13 can play a buffering role and adjust the distance between the connecting rods 10 at the same time.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A clamping and fixing device for a heat shrinkable insulation box, comprising a lower cover plate (1), an upper cover plate (2) being arranged at the upper end of the lower cover plate (1), and arc-shaped joints (3) being fixedly arranged at the front and rear ends of the lower cover plate (1) and the upper cover plate (2); Features: Also includes: A mounting seat (6) is arranged on one side of the arc-shaped joint (3); a slide groove (8) is arranged inside the mounting seat (6); a moving block (7) is arranged at the lower end of the mounting seat (6); and the upper end of the moving block (7) extends into the interior of the slide groove (8); and limit blocks (9) are fixedly arranged at the front and rear ends of the exterior of the moving block (7), and the limit blocks (9) and the slide groove (8) are slidably limited.

2. A clamping and fixing device for a heat shrinkable insulation box according to claim 1, characterized in that: A connecting rod (10) is provided on one side of the mounting seat (6) and the moving block (7) close to the arc-shaped joint (3), and the connecting rod (10) is fixedly connected to the mounting seat (6) and the moving block (7) respectively; an arc-shaped clamping rod (11) is provided on one side of the connecting rod (10) close to the arc-shaped joint (3), and the arc-shaped clamping rod (11) is fixedly connected to the connecting rod (10).

3. A clamping and fixing device for a heat shrinkable insulation box according to claim 2, characterized in that: A threaded rod (12) is provided at the upper end of the connecting rod (10) on the mounting seat (6), the lower end of the threaded rod (12) penetrates the connecting rod (10) on the mounting seat (6) and extends to the upper end of the connecting rod (10) on the moving block (7), and the threaded rod (12) is rotatably connected to the connecting rod (10) on the moving block (7).

4. A clamping and fixing device for a heat shrinkable insulation box according to claim 3, characterized in that: The threaded rod (12) is located between the connecting rod (10) on the moving block (7) and the connecting rod (10) on the mounting seat (6), and a supporting spring (13) is fixedly arranged outside the threaded rod (12).

5. A clamping and fixing device for a heat shrinkable insulation box according to claim 1, characterized in that: Positioning grooves (4) are provided inside both sides of the lower cover plate (1), and T-shaped limit strips (5) are provided inside the positioning grooves (4). The upper ends of the T-shaped limit strips (5) extend to the outside of the positioning grooves (4) and are fixedly connected to the upper cover plate (2).

6. A clamping and fixing device for a heat shrinkable insulation box according to claim 5, characterized in that: A snap-fitting groove (15) is provided inside the rear end of the T-shaped limiting strip (5).

7. A clamping and fixing device for a heat shrinkable insulation box according to claim 6, characterized in that: A clamping block (14) is disposed inside the clamping slot (15), the lower end of the clamping block (14) extending to below the clamping slot (15) and fixedly connected to the inner wall of the positioning slot (4), and the clamping block (14) is clamped and fixed to the clamping slot (15).

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