Special cable joint protection device for mining equipment

Abstract

The utility model discloses a special cable joint protection device for mining equipment, and belongs to the field of mining equipment power supply. The cable joint protection device special for the mining equipment comprises connecting rings, one side of each connecting ring is sequentially provided with an extension sheet and an extension frame in a welding mode, and a pair of connecting rings, a pair of extension sheets and a pair of extension frames are arranged in a mirror image mode. According to the utility model, the problems that the existing cable joint protection device can only fix the cables at the two ends during fixation and cannot pull the two connected cables mutually, so that the protection effect of the protection device after the cables are connected is poor are solved; according to the utility model, a pair of connecting rings, extension sheets and extension frames are arranged in a mirroring manner, and the two sides of the connecting position of two cables are additionally pulled at the same time, so that the two cables can be protected by pulling at the same time, and the connecting position of the two cables is prevented from being broken due to daily use.

Description

Technical Field

[0001] This utility model relates to the field of power supply for mining equipment, specifically a cable joint protection device for mining equipment. Background Technology

[0002] The cable joint protection device for mining equipment is a device used to protect cable joints from damage by the external environment. In mining operations, cable joints often face harsh conditions such as mechanical impact, chemical corrosion, moisture and high temperature. These factors may cause damage or failure of the cable joints, thereby affecting the normal operation of the equipment or even causing safety accidents. This protection device, by using high-strength and corrosion-resistant materials and a reasonable structure design, can effectively isolate the influence of the external environment on the cable joints, extend the service life of the cable, and improve the reliability and safety of the equipment.

[0003] Chinese patent CN208316266U discloses a cable joint protection device, including a protective shell. Both ends of the protective shell are provided with a fixing clip, a sealing gasket, and an end cap. The sealing gasket is located between the protective shell and the end cap, which is connected to the protective shell by bolts. The fixing clip is located on one side of the sealing gasket and inside the protective shell. Both ends of the protective shell are provided with sealing gaskets, and the diameters of the wire passage holes on the sealing gaskets are different, with the larger end located inside the protective shell. Because the cable joint is thicker than a normal cable, the sealing gasket not only has a dustproof and waterproof sealing function but also serves to fix the cable joint and prevent it from loosening.

[0004] When the cable joint protection device of the above patent wraps the outside of the cable after the cable is connected, the cable needs to be fixed. When fixing, the cables at both ends can be fixed separately. The two connected cables cannot be pulled on each other, resulting in poor protection effect of the protection device after the cable is connected. Utility Model Content

[0005] The purpose of this utility model is to provide a special cable joint protection device for mining equipment. It consists of a pair of connecting rings, extension plates, and extension frames arranged in a mirror image, which simultaneously provides additional pulling on both sides of the two cable connection positions. This pulling not only protects the two cables but also prevents the cable connection positions from breaking due to daily use, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a special cable joint protection device for mining equipment, comprising a connecting ring, an extension piece and an extension frame are sequentially welded to one side of the connecting ring, and a pair of the connecting ring, extension piece and extension frame are mirror images of each other. The surfaces of two connected cables are alternately clamped and fixed by one of the connecting rings, one of the extension frames, another connecting ring and another extension frame, and connecting pieces are provided between the outer sides of the connecting ring and one side of the adjacent extension frame.

[0007] Preferably, the upper and lower ends of the connecting ring are provided with first clamping plates for clamping, and a first threaded rod is provided on one side of the outer side of the first clamping plate. One end of the first threaded rod is rotatably connected to the inside of the first clamping plate, and the outer wall of the first threaded rod is engaged with the internal thread of the extension plate.

[0008] Preferably, the extension frame has a second clamping plate at both the front and rear ends, a second threaded rod on one side of the outer side of the second clamping plate, one end of the second threaded rod being rotatably connected to the inner side of the second clamping plate, and the outer side of the second threaded rod being threadedly engaged with the inner side of the extension frame.

[0009] Preferably, reinforcing blocks are provided on both sides of the connecting ring, and the reinforcing blocks are welded and fixed to the connecting ring.

[0010] Preferably, bolts are provided through both sides inside the connecting piece, and the bolts pass through the connecting piece and are embedded in the fitting reinforcing block and extension frame.

[0011] Preferably, an extension tube is provided around the outside of the first threaded rod, and the extension tube is welded and fixed to the connecting ring.

[0012] Preferably, the first threaded rod is housed inside the extension tube.

[0013] Preferably, a connecting cavity is provided on both sides of the recess between the two extension pieces.

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

[0015] In this invention, when connecting two cables, each cable is clamped by a first clamping piece inside a connecting ring. An extension piece extending from one connecting ring pulls an extension frame and a second clamping piece closer to the side of the other connecting ring. The second clamping pieces on both sides of the extension frame assist the first clamping piece inside the connecting ring in clamping. During the clamping and fixing of the cables, two mirror-distributed connecting rings, extension pieces, and extension frames are combined and spliced. The first and second clamping pieces inside the connecting rings, extension pieces, and extension frames clamp and fix both sides of the two connected cables. This means that after the middle position of the cables is fixed, the two connecting rings clamp and fix the two cables respectively. Simultaneously, the extension frame and its internal second clamping pieces provide additional fixation, further pulling and clamping the other cable. This firstly improves the integrity and stability of the entire protection structure. Secondly, the mutual pulling on both sides of the cable connection position enhances the protection of the cable connection position, preventing breakage due to excessive pressure. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall external structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the internal structure of the connecting ring of this utility model;

[0018] Figure 3 This is a cross-sectional view of the internal structure of the extension frame of this utility model;

[0019] Figure 4 An exploded view of the installation position of the connecting piece of this utility model;

[0020] Figure 5 For the present utility model Figure 4 Enlarged view of a portion of region A in the middle.

[0021] In the figure: 1. Connecting ring; 2. Extension piece; 3. Extension frame; 4. First clamping piece; 5. Extension tube; 6. First threaded rod; 7. Second clamping piece; 8. Second threaded rod; 9. Connecting cavity; 10. Reinforcing block; 11. Connecting piece; 12. Bolt. Detailed Implementation

[0022] The present invention will be further described below with reference to specific embodiments.

[0023] like Figure 1 As shown in the figure, a special cable joint protection device for mining equipment in this embodiment includes a connecting ring 1. The upper and lower ends of the connecting ring 1 are provided with first clamping pieces 4 for clamping. The first clamping pieces 4 can contact and clamp the outer wall of one of the cables. The clamping can facilitate the fixing of the protection device, so that the protection device is fixed to the surface of the cable.

[0024] The connecting ring 1 has an extension piece 2 on one side, which is welded to the connecting ring 1. The extension piece 2 has an extension frame 3 on one side, which is welded to the extension piece 2. The extension frame 3 has a second clamping piece 7 at both the front and rear ends inside the extension frame 3. The second clamping piece 7 can perform additional clamping. The relative movement of a pair of second clamping pieces 7 can contact and clamp the outer wall of the other cable. The clamping of both sides of the two cable connection positions can be achieved by the first clamping piece 4 at the position of the connecting ring 1 and the second clamping piece 7 at the position of the extension frame 3. By clamping simultaneously, the two sides of the connection position can be pulled to avoid breakage of the connection position.

[0025] In addition, such as Figure 2 As shown, a pair of connecting rings 1, extension pieces 2, and extension frames 3 are mirror images of each other. When a pair of connecting rings 1, extension pieces 2, and extension frames 3 simultaneously fix the cable, the surfaces of the two connected cables are alternately clamped and fixed at both sides of the connection position of the two cables by one connecting ring 1, one extension frame 3, the other connecting ring 1, and the other extension frame 3 in sequence. At the same time, the connection positions of the two cables are pulled. Pulling can improve the service life of the cable in harsh environments and the stability during use, and prevent the connection position of the two cables from breaking.

[0026] To facilitate fixing the position of connecting ring 1, such as Figure 3 As shown, a first threaded rod 6 is provided on one side of the outside of the first clamping piece 4. One end of the first threaded rod 6 is rotatably connected to the inside of the first clamping piece 4. The outer wall of the first threaded rod 6 is threadedly engaged with the inside of the extension piece 2. By twisting the first threaded rod 6, the first clamping piece 4 can be directly pushed, and the first clamping piece 4 is pushed to contact the outer wall of the cable to complete clamping and fixing.

[0027] To facilitate the fixing of the extension frame 3, a second threaded rod 8 is provided on one side of the outer side of the second clamping plate 7. One end of the second threaded rod 8 is rotatably connected to the inside of the second clamping plate 7. The outer side of the second threaded rod 8 is threadedly engaged with the inside of the extension frame 3. By twisting the second threaded rod 8, the second clamping plate 7 can be directly pushed, the second clamping plate 7 can be pushed and contacted with the outer wall of the cable.

[0028] To enable the connection between a pair of connecting rings 1, extension plates 2, and extension frames 3, and to allow these components to mutually restrict and connect, thereby improving uniformity and enhancing cable protection, such as... Figure 4 and Figure 5As shown, connecting pieces 11 are provided between the two outer sides of the connecting ring 1 and one side of the adjacent extension frame 3. After the connecting ring 1, extension piece 2 and extension frame 3 alternately connect the cables, a reinforcing block 10 is provided on both sides of the connecting ring 1, and the reinforcing block 10 is welded and fixed to the connecting ring 1. The connecting piece 11 is attached to the reinforcing block 10 and extension frame 3 on the surface of the connecting ring 1 respectively. After the reinforcing block 10 and extension frame 3 are attached, bolts 12 are provided through both sides inside the connecting piece 11. The bolts 12 pass through the connecting piece 11 and are embedded in the attached reinforcing block 10 and extension frame 3 respectively. The connection and fixation are achieved through the penetration of the bolts 12, so that a pair of connecting rings 1, extension pieces 2 and extension frames 3 are connected to each other, and the connection positions of the two cables are fixed simultaneously.

[0029] In order to house the outside of the first threaded rod 6, an extension tube 5 is provided around the outside of the first threaded rod 6, and the extension tube 5 is welded and fixed to the connecting ring 1. The first threaded rod 6 is housed inside the extension tube 5. The extension tube 5 can protect the first threaded rod 6, prevent it from being exposed on the surface of the first threaded rod 6, and prevent the surface of the first threaded rod 6 from rusting.

[0030] To avoid collisions at the connection point of the two cables during the fixing process, a connection cavity 9 is provided on both sides between the two extension pieces 2. The reserved space of the connection cavity 9 makes it easy to reserve the connection position of the cables, and also avoids the user from observing the connection position of the two cables. In case of breakage or other abnormalities, it can be repaired in advance.

[0031] Working principle: When using the device to connect two cables, before connecting the cables, slide the two connecting rings 1 to the outside of the cables. After the cables are connected, rotate the first threaded rod 6 to push the first clamping plate 4. After the two first clamping plates 4 are pushed in sequence, the position of the connecting ring 1 is fixed. After fixing the connecting ring 1, rotate the second threaded rod 8. The rotation of the second threaded rod 8 pushes the second clamping plate 7. After the two second clamping plates 7 are pushed in sequence and contact the outer wall of the cable, the position of the extension frame 3 is fixed. The connecting ring 1 and the extension frame 3 are fixed on the surface of the two connecting cables respectively. The first clamping plate 4 and the second clamping plate 7 are fixed on both sides of a pair of cable connection positions. After the two pairs of first clamping plates 4 and the two pairs of second clamping plates 7 simultaneously complete the clamping and fixing of the cables in mirror positions, the connecting plate 11 fits against the side of the reinforcing block 10 and the extension frame 3. Finally, the bolt 12 passes through the reinforcing block 10 and the extension frame 3 in the nearby position to complete the mutual connection of the two connecting rings 1, the two extension plates 2 and the two extension frames 3, thereby protecting the position of the special cable joint of the mining equipment.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A mining equipment specific cable joint protection device comprising a connecting ring (1), characterized in that, An extension piece (2) and an extension frame (3) are sequentially welded to one side of the connecting ring (1). The connecting ring (1), the extension piece (2) and the extension frame (3) are arranged in a pair in a mirror image. The surfaces of the two connected cables are alternately clamped and fixed by one of the connecting rings (1), one of the extension frames (3), the other connecting ring (1) and the other extension frame (3). A connecting piece (11) is provided between the two outer sides of the connecting ring (1) and one side of the adjacent extension frame (3).

2. A mining equipment specific cable joint protection device according to claim 1, characterised in that, The upper and lower ends of the connecting ring (1) are provided with first clamping plates (4) for clamping. A first threaded rod (6) is provided on one side of the outside of the first clamping plate (4). One end of the first threaded rod (6) is rotatably connected to the inside of the first clamping plate (4). The outer wall of the first threaded rod (6) is threadedly engaged with the inside of the extension plate (2).

3. A mining equipment specific cable joint protection device according to claim 2, characterised in that, The extension frame (3) has a second clamping plate (7) at both the front and rear ends. A second threaded rod (8) is provided on one side of the outside of the second clamping plate (7). One end of the second threaded rod (8) is rotatably connected to the inside of the second clamping plate (7). The outside of the second threaded rod (8) is threadedly engaged with the inside of the extension frame (3).

4. A mining equipment specific cable joint protection device according to claim 1, characterized in that, The connecting ring (1) is provided with reinforcing blocks (10) on both sides, and the reinforcing blocks (10) are welded and fixed to the connecting ring (1).

5. A mining equipment specific cable joint protection device as claimed in claim 1, wherein, Bolts (12) are provided through both sides inside the connecting piece (11). The bolts (12) pass through the connecting piece (11) and are embedded in the fitting reinforcing block (10) and extension frame (3).

6. A mining equipment specific cable joint protection device according to claim 2, characterized in that, An extension tube (5) is provided around the outside of the first threaded rod (6), and the extension tube (5) is welded and fixed to the connecting ring (1).

7. A mining equipment specific cable joint protection device according to claim 6, characterised in that, The first threaded rod (6) is housed inside the extension tube (5).

8. A mining equipment specific cable joint protection device according to claim 7, characterised in that, A connecting cavity (9) is provided on both sides of the two extension pieces (2).

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