Casing pliers with injury-free clamping mechanism

Abstract

The utility model relates to the technical field of casing tongs, in particular to a casing tong with a damage-free clamping mechanism, which comprises a tong body head, a metal lining plate is fixed on the surface of an arc-shaped pressing block, a screw hole is arranged on the surface of the tong body head, a hand screw is rotatably connected in the screw hole, and one end of the hand screw extends into an arc-shaped groove and is fixedly provided with a push plate; the clamp has the beneficial effects that the hand screw is rotated, the movement of the hand screw drives the push plate to synchronously move, so that the push plate pushes the metal lining plate, and the metal lining plate pushes the arc-shaped pressing block, so that the arc-shaped pressing block extends outwards and extends out of the arc-shaped groove formed in the surface of the head of the clamp body again; therefore, the part, originally retracted into the arc-shaped groove, of the arc-shaped pressing block also plays a role, and the arc-shaped pressing block is prevented from being wasted; meanwhile, after the arc-shaped pressing blocks are completely abraded, old metal lining plates can be detached, new arc-shaped pressing blocks and new metal lining plates are replaced, and the function of nondestructive clamping is recovered.

Description

TECHNICAL FIELD

[0001] The utility model relates to sleeve pipe pliers technical field, specifically is sleeve pipe pliers with no damage clamping mechanism. BACKGROUND

[0002] Communication cable, optical cable and other cables have been widely used in signal transmission, in order to facilitate the connection of two disconnected cables, the two ends of the cable are connected to another cable through a rotating cable sleeve. The two ends of the rotating cable sleeve are fixed by a fastening cover, and the fastening cover cannot be locked and loosened by hand.

[0003] In the prior art, a sleeve pipe pliers is disclosed in the document with the application number CN201020554917.3, which is tried and approved by the State Intellectual Property Office of China. The sleeve pipe pliers includes two mutually crossed and hinged pliers bodies. The head portions of the two pliers bodies are provided with rough surfaces for clamping the grounding connection wire terminal and the modified cable connector at the mutually contacting plier nozzles. The inner middle portions of the head portions of the pliers bodies are provided with arc-shaped pressing blocks for clamping the fastening cover of the rotating cable sleeve. In use, the sleeve pipe pliers is opened, and the fastening cover of the rotating cable sleeve is inserted between the head portions of the two pliers bodies. The sleeve pipe pliers is closed, and the fastening cover is pressed by the two arc-shaped pressing blocks. The shape of the arc-shaped pressing blocks corresponds to the shape of the sleeve fastening cover, which increases the contact area with the fastening cover and increases the friction between them. The fastening cover can be well protected, and the fastening cover can be rotated together when the sleeve pipe pliers is rotated, thereby facilitating the removal of the fastening cover. The sleeve pipe pliers is convenient to use, simple in structure and complete in functions.

[0004] In the prior art, the inner middle portions of the head portions of the pliers bodies are provided with arc-shaped pressing blocks for clamping the fastening cover of the rotating cable sleeve. When the arc-shaped pressing blocks are made of soft and elastic rubber products, they can function as no-damage clamping.

[0005] However, the arc-shaped pressing blocks in the prior art will gradually wear out during long-term use. When the part of the arc-shaped pressing blocks that extends out of the arc-shaped groove is worn out, the arc-shaped pressing blocks need to be replaced. At this time, the arc-shaped pressing blocks still have a lot of remaining parts, which leads to the waste of the remaining arc-shaped pressing blocks. TECHNICAL SOLUTION

[0006] The utility model aims at providing a sleeve pipe pliers with a no-damage clamping mechanism to solve the problems raised in the background art.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a sleeve pipe pliers with a no-damage clamping mechanism, which includes a plier head portion. An arc-shaped groove is formed on the surface of the plier head portion. An arc-shaped pressing block is arranged in the arc-shaped groove. A metal lining plate is fixed on the surface of the arc-shaped pressing block. A screw hole is formed on the surface of the plier head portion. A hand screw is rotatably connected in the screw hole. One end of the hand screw extends into the arc-shaped groove and is fixed with a push plate.

[0008] Preferably, a thread is formed on the inner wall of the screw hole, and the screw hole is threadedly connected with the hand screw.

[0009] Preferably, the metal lining plate is in an arc plate structure, and the push plate is in a circular plate structure, and the end of the push plate away from the hand screw abuts against the surface of the metal lining plate.

[0010] Preferably, a guide rail is formed on the surface of the head of the clamp body, and a guide rod is arranged on the surface of the metal lining plate, the guide rod is composed of a guide part and a connecting part, the guide part is in a rectangular rod structure, and the guide part is movably inserted into the guide rail.

[0011] Preferably, a connecting groove is formed on the surface of the metal lining plate, and the connecting part is in a circular rod structure and is movably inserted into the connecting groove.

[0012] Preferably, a clamping groove is formed on the inner wall of the groove body of the connecting groove, the clamping groove is in an annular groove structure, and a clamping ring is movably inserted into the clamping groove and is sleeved and fixed on the surface of the connecting part.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] The sleeve clamp with the damage-free clamping mechanism provided by the utility model can make the part of the arc-shaped pressing block originally retracted in the arc-shaped groove also play a role when the part of the arc-shaped pressing block extending out of the arc-shaped groove is worn out, so that the arc-shaped pressing block is not wasted, and when the arc-shaped pressing block is completely worn out, the old metal lining plate can be disassembled, and a new arc-shaped pressing block and metal lining plate can be replaced to restore the function of damage-free clamping. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the utility model;

[0016] Figure 2 It is a sectional structural schematic view of the utility model;

[0017] Figure 3 It is a sectional structural schematic view of the connecting groove;

[0018] Figure 4 It is Figure 3 It is an enlarged schematic view of the structure at A in the middle.

[0019] In the figure: the head of the clamp body 1, the arc-shaped groove 2, the arc-shaped pressing block 3, the metal lining plate 4, the screw hole 5, the hand screw 6, the push plate 7, the guide rail 8, the guide rod 9, the guide part 901, the connecting part 902, the connecting groove 10, the clamping groove 11, and the clamping ring 12. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme of the utility model to carry out clearly, completely describe, and the advantage is more clear and distinct, the following combining the drawing to the utility model embodiment carries out further detailed explanation. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all embodiments, only to explain the embodiments of the utility model, and not for limiting the embodiments of the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor are within the scope of the utility model protection.

[0021] Embodiment one: please refer to Figures 1 to 4 The utility model provides a kind of technical scheme: a sleeve clamp with no damage clamping mechanism, it include: the head of the clamp body 1, the surface of head of the clamp body 1 is equipped with arc-shaped groove 2, arc-shaped groove 2 is provided with arc-shaped pressing block 3, the surface of arc-shaped pressing block 3 is fixed with metal lining plate 4, the surface of head of the clamp body 1 is equipped with screw hole 5, screw hole 5 is rotatably connected with hand screw 6, one end of hand screw 6 extends into arc-shaped groove 2 and is fixed with push plate 7, the inner wall of screw hole 5 is equipped with screw thread, screw hole 5 and hand screw 6 between it is provided with screw thread connection, metal lining plate 4 is arc-shaped plate body structure, push plate 7 is circular plate body structure, the end of push plate 7 away from hand screw 6 is on the surface of metal lining plate 4.

[0022] When the part of arc-shaped pressing block 3 that extends out of arc-shaped groove 2 is worn out completely in actual use, rotate hand screw 6, under the screw thread connection between screw hole 5 and hand screw 6, hand screw 6 gradually extends into arc-shaped groove 2, the movement of hand screw 6 drives push plate 7 to move synchronously, so that push plate 7 pushes metal lining plate 4, and metal lining plate 4 pushes arc-shaped pressing block 3, so that arc-shaped pressing block 3 extends outward, arc-shaped pressing block 3 re-extends out of the arc-shaped groove 2 on the surface of head of the clamp body 1, so that the part of arc-shaped pressing block 3 originally retracted in arc-shaped groove 2 also plays a role, avoiding the waste of arc-shaped pressing block 3.

[0023] Embodiment two: on the basis of embodiment one, in order to realize the installation of arc-shaped pressing block 3 and head of the clamp body 1, the surface of head of the clamp body 1 is equipped with guide rail 8, the surface of metal lining plate 4 is provided with guide rod 9, guide rod 9 is composed of guide part 901 and connecting part 902, guide part 901 is rectangular rod body structure, and guide part 901 is movably inserted in guide rail 8.

[0024] The surface of the metal lining plate 4 is provided with a guide rod 9, the guide part 901 of the guide rod 9 is movably inserted into the guide rail 8 formed on the surface of the head part 1 of the tongs body, so that the arc-shaped pressing block 3 is movably installed on the head part 1 of the tongs body.

[0025] In order to replace the arc-shaped pressing block 3, the surface of the head part 1 of the tongs body is provided with a guide rail 8, the surface of the metal lining plate 4 is provided with a guide rod 9, the guide rod 9 is composed of a guide part 901 and a connecting part 902, the guide part 901 is in a rectangular rod structure, the guide part 901 is movably inserted into the guide rail 8, the surface of the metal lining plate 4 is provided with a connecting groove 10, the connecting part 902 is in a circular rod structure, the connecting part 902 is movably inserted into the connecting groove 10, the connecting groove 10 is provided with a clamping groove 11 on the inner wall of the groove body, the clamping groove 11 is in an annular groove structure, a clamping ring 12 is movably inserted into the clamping groove 11.

[0026] When the arc-shaped pressing block 3 is completely worn out, the old metal lining plate 4 can be removed, and the new arc-shaped pressing block 3 and the metal lining plate 4 are replaced to restore the function of the sleeve tongs with the damage-free clamping mechanism; when replacing, first pinch the part of the guide part 901 protruding from the guide rail 8, then pull the guide rod 9 outward, the connecting part 902 is limited in the connecting groove 10 by the clamping ring 12 inserted into the clamping groove 11, the clamping ring 12 is made of rubber material with elasticity, so when the guide rod 9 is pulled, the clamping ring 12 is extruded and can be withdrawn from the clamping groove 11, so as to realize the pulling of the connecting part 902 from the connecting groove 10, and then the guide rod 9 is pulled out of the connecting groove 10 and the guide rail 8, after all the groups of guide rods 9 are pulled out, they are stored, at this time, the old metal lining plate 4 can be removed from the arc-shaped groove 2, then the new arc-shaped pressing block 3 and the metal lining plate 4 are put into the arc-shaped groove 2, the connecting groove 10 is aligned with the guide rail 8, then the connecting part 902 is inserted back into the connecting groove 10, the guide part 901 is also inserted back into the guide rail 8, after the installation of all the groups of guide rods 9 is completed, the new arc-shaped pressing block 3 is movably installed on the head part 1 of the tongs body, and the replacement of the arc-shaped pressing block 3 is realized; at the same time, the arc-shaped pressing block 3 and the metal lining plate 4 are fixedly installed by gluing, the old metal lining plate 4 removed can be reused after the old arc-shaped pressing block 3 is glued on it.

[0027] In actual use, when the part of the arc-shaped pressing block 3 that extends out of the arc-shaped groove 2 is worn out, the hand screw 6 is rotated, and the hand screw 6 gradually extends into the arc-shaped groove 2 under the thread connection between the screw hole 5 and the hand screw 6, the movement of the hand screw 6 drives the synchronous movement of the push plate 7, so that the push plate 7 pushes the metal lining plate 4, and the metal lining plate 4 pushes the arc-shaped pressing block 3, thereby making the arc-shaped pressing block 3 extend outward, and the arc-shaped pressing block 3 extends out of the arc-shaped groove 2 on the surface of the head part 1 of the tongs again, so that the part of the arc-shaped pressing block 3 that is originally retracted in the arc-shaped groove 2 also plays a role, and the arc-shaped pressing block 3 is avoided from being wasted; the surface of the metal lining plate 4 is provided with a guide rod 9, and a guide part 901 of the guide rod 9 is movably inserted into a guide rail 8 on the surface of the head part 1 of the tongs, thereby realizing the movable installation of the arc-shaped pressing block 3 and the head part 1 of the tongs; when the arc-shaped pressing block 3 is completely worn out, the old metal lining plate 4 can be disassembled, and the new arc-shaped pressing block 3 and the metal lining plate 4 are replaced to restore the function of the sleeve tongs with the damage-free clamping mechanism; when replacing, the part of the guide part 901 that extends out of the guide rail 8 is pinched, and then the guide rod 9 is pulled outwards, the connecting part 902 is inserted into the clamping groove 11 through the clasp 12 and is limited in the connecting groove 10, the clasp 12 is made of rubber material with elasticity, so that when the guide rod 9 is pulled, the clasp 12 is extruded and can be withdrawn from the clamping groove 11, thereby realizing the pulling of the connecting part 902 out of the connecting groove 10, and then the guide rod 9 is pulled out of the connecting groove 10 and the guide rail 8, after all the guide rods 9 are pulled out, they are stored, at this time, the old metal lining plate 4 can be disassembled from the arc-shaped groove 2, then the new arc-shaped pressing block 3 and the metal lining plate 4 are placed in the arc-shaped groove 2, the connecting groove 10 is aligned with the guide rail 8, then the connecting part 902 is inserted back into the connecting groove 10, and the guide part 901 is also inserted back into the guide rail 8, after the installation of all the guide rods 9 is completed, the new arc-shaped pressing block 3 can be movably installed on the head part 1 of the tongs, and the replacement of the arc-shaped pressing block 3 is realized; meanwhile, the arc-shaped pressing block 3 and the metal lining plate 4 are fixedly installed through gluing, the old metal lining plate 4 that is disassembled can be returned to the factory to remove the glue and stick the new arc-shaped pressing block 3, thereby realizing the reuse.

[0028] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A cannulotome having a no-harm clamping mechanism, comprising: The utility model relates to a clamp head (1), the surface of clamp head (1) is seted up with arc groove (2), arc groove (2) is provided with arc pressing block (3), it is characterized by: the surface of arc pressing block (3) is fixed with metal lining (4), the surface of clamp head (1) is seted up with screw hole (5), screw hole (5) is rotatably connected with hand screw (6), one end of hand screw (6) extends into arc groove (2) and is fixed with push plate (7).

2. The sleeve tool according to claim 1, wherein: The inner wall of the screw hole (5) is provided with a screw thread, and the screw hole (5) and the hand screw (6) are threadedly connected.

3. The sleeve tool according to claim 1, wherein: The metal lining (4) is in an arc plate structure, and the push plate (7) is in a circular plate structure, with one end of the push plate (7) away from the hand screw (6) abutting against the surface of the metal lining (4).

4. The caponier tongs with a no-damage clamping mechanism according to claim 1, characterized in that: The surface of the clamp head (1) is provided with a guide rail (8), and the surface of the metal lining (4) is provided with a guide rod (9), the guide rod (9) is composed of a guide portion (901) and a connecting portion (902), the guide portion (901) is in a rectangular rod structure, and the guide portion (901) is movably inserted into the guide rail (8).

5. The caponier tongs with a no-damage clamping mechanism according to claim 4, characterized in that: The surface of the metal lining (4) is provided with a connecting groove (10), and the connecting portion (902) is in a circular rod structure, and the connecting portion (902) is movably inserted into the connecting groove (10).

6. The caponier tongs with a no-damage clamping mechanism according to claim 5, characterized in that: The inner wall of the connecting groove (10) is provided with a clamping groove (11) in an annular groove structure, and the surface of the connecting portion (902) is provided with a clamping ring (12) movably inserted into the clamping groove (11).

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