Insulating needle-nose pliers with insulating handles convenient to replace

Abstract

The utility model discloses a pair of insulated nipper pliers with insulated handles convenient to replace, which comprises a pliers body, the outer side of the pliers body is fixedly connected with a lantern ring, the inner side of the lantern ring is rotatably connected with a pin shaft, and one side, far away from the pliers body, of the lantern ring is fixedly connected with a connecting handle; the utility model relates to the technical field of needle-nose pliers, in particular to a pair of needle-nose pliers, which comprises a connecting handle and a holding part, a connecting part is inserted into the outer side of the holding part, and the outer side of the connecting part is fixedly connected with the outer wall of the connecting handle. According to the device, by arranging a holding part, when a rotary knob is rotated, a connecting rod drives a threaded sleeve to rotate together, at the moment, an inner threaded ring can move in the axial direction of the threaded sleeve, a limiting rod synchronously moves along with the inner threaded ring, and the outer wall of the limiting rod can make contact with the outer side of an elastic clamping plate. At the moment, the limiting rod can limit the elastic deformation of the elastic clamping plate, so that the connection firmness between the holding part and the connecting part is enhanced, and it is ensured that when the insulated nipper pliers are used for operation, the insulated handle is not prone to loosening or falling off.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pointed nose pliers, and particularly relates to an insulating pointed nose plier with replaceable insulating handle. BACKGROUND

[0002] In electrical operation and various fields involving live operation, insulating pointed nose pliers, as a commonly used electrician's tool, are of great importance. The insulating pointed nose pliers not only need to have precise clamping and operating functions, but also must ensure the safety of the operator during use. The stable connection and reliable performance of the insulating handle are one of the key factors to ensure safety.

[0003] In the prior art, when the insulating handle needs to be replaced due to wear, aging or damage caused by long-term use, it is difficult to remove the old handle. The strong bonding of the glue makes the insulating handle almost integrated with the plier body. Forced removal not only easily damages the plier body or the new replacement handle, but also may leave glue residues affecting the installation of the new handle and subsequent use effect. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model adopts the technical scheme to solve the technical problems: an insulating pointed nose plier with replaceable insulating handle, comprising: a plier body, a collar fixedly connected to the outer side of the plier body, a pin shaft rotatably connected to the inner side of the collar, and a connecting handle fixedly connected to the side of the collar away from the plier body; a holding part, a connecting part inserted into the outer side of the holding part, the outer side of the connecting part fixedly connected to the outer wall of the connecting handle, the connecting part comprising an insertion cylinder, the insertion cylinder fixedly connected to the outer side of the insertion cylinder, the insertion cylinder fixedly connected to the inner side of the insertion cylinder, and the insertion cylinder comprising a limiting block, the insulating pointed nose plier comprising the plier body, the collar, the pin shaft, the connecting handle, the connecting part and the holding part, the plier body being the main part of the pointed nose plier, the outer side of the plier body fixedly connected to the collar, the collar connected to the connecting handle through the rotatably connected pin shaft to realize the movable connection, so that the plier handle can be opened and closed relative to the plier body around the pin shaft, thereby realizing the basic function of the pointed nose plier.

[0005] The holding part comprises an insulating handle, the inner wall of the insulating handle rotatably connected to a threaded sleeve, the inner side of the threaded sleeve fixedly connected to a connecting rod, the outer side of the threaded sleeve threadedly connected to an internal thread ring, the outer side of the internal thread ring fixedly connected to a limiting rod, the outer side of the insulating handle fixedly connected to an insertion block, the outer wall of the insertion cylinder fixedly connected to the outer wall of the connecting handle, and the outer side of the insertion block inserted into the inner side of the insertion cylinder. The insertion block on the outer side of the insulating handle of the holding part is aligned with the insertion cylinder of the connecting part, and then the insertion block is inserted along the inner side of the insertion cylinder.

[0006] Preferably, the outer wall of the insert block engages with the outer side of the elastic retaining plate via a slot formed in the wall of the insert block. During insertion of the insert block into the insert tube, the elastic retaining plate, fixedly connected to the outer side of the insert tube, is squeezed by the insert block. The elastic retaining plate has a certain degree of elasticity and, under the pressure of the insert block, elastically deforms and expands outward. When the insert block is fully inserted into the insert tube, the elastic retaining plate, under the action of its own elastic restoring force, snaps into the slot formed in the wall of the insert block.

[0007] Preferably, the outer wall of the insert is slidably connected to the outer wall of the limit block through a limit groove, and the limit groove is opened in the wall of the insert. The cooperation between the limit block and the limit groove guides and limits the insertion direction and depth of the insert, ensuring that the insert can be accurately and smoothly inserted into the insert tube.

[0008] Preferably, the outer side of the insulating grip is rotatably connected to a knob, the inner side of the knob is fixedly connected to the outer wall of the connecting rod, and when the knob is rotated, the connecting rod drives the threaded sleeve to rotate together.

[0009] Preferably, the side wall of the internal threaded ring is slidably connected to the inner wall of the insulating grip rod, the inner wall of the insulating grip rod is slidably connected to the outer wall of the limit rod, and the outer wall of the limit rod is in contact with the outer side of the elastic clip. When the limit rod is in contact with the outer side of the elastic clip, the limit rod will limit the elastic deformation of the elastic clip, thereby enhancing the connection firmness between the gripping part and the connecting part.

[0010] The beneficial effects of the utility model are as follows:

[0011] 1. The present invention provides a connection portion, and during the insertion of the insert block into the insert barrel, the elastic clip fixed to the outer side of the insert barrel is squeezed by the insert block. The elastic clip has a certain degree of elasticity, and will elastically deform and expand outward under the pressure of the insert block; when the insert block is fully inserted into the insert barrel, the elastic clip will be snapped into the slot provided in the wall of the insert block under the action of its own elastic restoring force. This snap connection method achieves a preliminary locking connection between the grip portion and the connection portion, allowing the insulating handle to be relatively stably connected to the connecting handle on the pliers body, preventing the insulating handle from accidentally falling off or shifting during installation, and ensuring the preliminary establishment of the connection relationship between the insulating handle and the pliers body.

[0012] 2. The present invention provides a gripping portion. When the knob is turned, the connecting rod drives the threaded sleeve to rotate together. At this time, the internally threaded ring moves along the axial direction of the threaded sleeve. During this movement, the limiting rod moves synchronously with the internally threaded ring, causing the outer wall of the limiting rod to contact the outer side of the elastic clamp. At this time, the limiting rod limits the elastic deformation of the elastic clamp, thereby strengthening the connection between the gripping portion and the connecting portion, achieving a more stable connection between the insulated handle and the pliers body, and ensuring that the insulated handle will not easily loosen or fall off when the insulated needle-nose pliers are used. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the main view of the utility model;

[0014] Figure 2 It is a cross-sectional view of the utility model;

[0015] Figure 3 It is a structural diagram of the connecting portion of the utility model;

[0016] Figure 4 It is a structural schematic diagram of the gripping portion of the utility model.

[0017] In the figure: 1. pliers body; 2. collar; 3. pin; 4. connecting handle; 5. connecting part; 6. gripping part; 51. insert cylinder; 52. elastic clamping plate; 53. limit block; 61. insulating grip rod; 62. knob; 63. connecting rod; 64. threaded sleeve; 65. internal threaded ring; 66. limit rod; 67. insert block; 68. slot; 69. limit slot. DETAILED DESCRIPTION

[0018] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

[0019] Example: See Figure 1 - Figure 4 The utility model provides a technical solution: an insulated needle-nose pliers with easy replacement of insulating handles, comprising: a pliers body 1, a collar 2 fixedly connected to the outside of the pliers body 1, a pin 3 rotatably connected to the inside of the collar 2, a connecting handle 4 fixedly connected to the side of the collar 2 away from the pliers body 1, the insulated needle-nose pliers are composed of a pliers body 1, a collar 2, a pin 3, a connecting handle 4, a connecting portion 5 and a gripping portion 6. The pliers body 1 is the main part of the needle-nose pliers, and the collar 2 is fixedly connected to the outside of the pliers body. The collar 2 is movably connected to the connecting handle 4 through the pin 3 rotatably connected inside, so that the pliers handle 4 can open and close relative to the pliers body 1 around the pin 3, thereby realizing the basic functions of the needle-nose pliers.

[0020] The gripping portion 6 has a connecting portion 5 inserted on the outer side of the gripping portion 6, and the outer side of the connecting portion 5 is fixedly connected to the outer wall of the connecting handle 4. The connecting portion 5 includes an insert 51, and the outer side of the insert 51 is fixedly connected to an elastic card plate 52, and the inner side of the insert 51 is fixedly connected to a limiting block 53; the gripping portion 6 includes an insulating gripping rod 61, and the inner wall of the insulating gripping rod 61 is rotatably connected to a threaded sleeve 64, and the inner side of the threaded sleeve 64 is fixedly connected to a connecting rod 63, and the outer side of the threaded sleeve 64 is threadedly connected to an internal threaded ring 65, and the outer side of the internal threaded ring 65 is fixedly connected to a limiting rod 66, and the outer side of the insulating gripping rod 61 is fixedly connected to an insert block 67, and the outer wall of the insert 51 is fixedly connected to the outer wall of the connecting handle 4, and the outer side of the insert block 67 is plugged into the inner side of the insert 51, and the outer wall of the insert block 67 is connected to the inner side of the insert 51 through the card slot 68. It is engaged with the outer side of the elastic card plate 52, and the card groove 68 is opened in the wall of the insert block 67. The outer wall of the insert block 67 is slidably connected to the outer wall of the limit block 53 through the limit groove 69, and the limit groove 69 is opened in the wall of the insert block 67. When the insulating handle is to be installed on the pliers body 1, first align the insert block 67 on the outer side of the insulating grip rod 61 of the gripping part 6 with the insert tube 51 of the connecting part 5, and then insert the insert block 67 along the inner side of the insert tube 51. During this process, the cooperation between the limit block 53 and the limit groove 69 guides and limits the insertion direction and depth of the insert block 67, ensuring that the insert block 67 can be accurately and smoothly inserted into the insert tube 51. During the process of inserting the insert block 67 into the insert tube 51, the elastic card plate 52 fixedly connected to the outer side of the insert tube 51 will be squeezed by the insert block 67. The elastic retaining plate 52 has a certain degree of elasticity and will elastically deform and expand outward under the pressure of the insert block 67. When the insert block 67 is fully inserted into the insert tube 51, the elastic retaining plate 52 will be activated by its own elastic restoring force and snap into the retaining groove 68 provided in the wall of the insert block 67. This snap connection achieves a preliminary locking connection between the grip portion 6 and the connecting portion 5, allowing the insulating handle to be relatively stably connected to the connecting handle 4 on the pliers body 1, preventing the insulating handle from accidentally falling off or shifting during installation, and ensuring the initial connection between the insulating handle and the pliers body 1.

[0021] The outer side of the insulating handle 61 is rotationally connected with a knob 62, the inner side of the knob 62 is fixedly connected with the outer wall of a connecting rod 63, the side wall of an internal thread ring 65 is slidably connected with the inner wall of the insulating handle 61, the inner wall of the insulating handle 61 is slidably connected with the outer wall of a limiting rod 66, the outer wall of the limiting rod 66 is in contact with the outer side of the elastic clamping plate 52, when the knob 62 is rotated, the connecting rod 63 drives the thread sleeve 64 to rotate, at this time, the internal thread ring 65 moves along the axial direction of the thread sleeve 64, in the moving process of the internal thread ring 65, the limiting rod 66 moves synchronously with the internal thread ring 65, so that the outer wall of the limiting rod 66 is in contact with the outer side of the elastic clamping plate 52. At this time, the limiting rod 66 limits the elastic deformation of the elastic clamping plate 52, thereby enhancing the connection firmness between the holding part 6 and the connecting part 5, realizing more stable connection between the insulating handle and the pliers body 1, and ensuring that the insulating handle will not easily loosen or fall off when the insulating needle-nose pliers is used for operation.

[0022] Working principle:

[0023] The insulating needle-nose pliers is composed of a pliers body 1, a sleeve ring 2, a pin shaft 3, a connecting handle 4, a connecting part 5 and a holding part 6, the pliers body 1 is the main part of the needle-nose pliers, the outer side of the pliers body 1 is fixedly connected with the sleeve ring 2, the sleeve ring 2 is movably connected with the connecting handle 4 through the inner side rotationally connected pin shaft 3, so that the connecting handle 4 can be opened and closed relative to the pliers body 1 around the pin shaft 3, thereby realizing the basic function of the needle-nose pliers.

[0024] When the insulating handle is installed on the pliers body 1, first, the plug block 67 on the outer side of the insulating handle 61 of the holding part 6 is aligned with the plug cylinder 51 of the connecting part 5, then the plug block 67 is inserted along the inner side of the plug cylinder 51, in this process, the cooperation of the limiting block 53 and the limiting groove 69 plays a guiding and limiting role in the insertion direction and depth of the plug block 67, ensuring that the plug block 67 can be accurately and stably inserted into the plug cylinder 51.

[0025] In the process of inserting the plug block 67 into the plug cylinder 51, the elastic clamping plate 52 fixedly connected with the outer side of the plug cylinder 51 will be extruded by the plug block 67. The elastic clamping plate 52 has a certain elasticity and will be elastically deformed and outwardly opened under the extrusion of the plug block 67; after the plug block 67 is completely inserted into the plug cylinder 51, the elastic clamping plate 52 will be clamped into the clamping groove 68 in the wall of the plug block 67 under the action of the elastic restoring force of the elastic clamping plate 52. Through this clamping mode, the preliminary locking connection between the holding part 6 and the connecting part 5 is realized, so that the insulating handle can be relatively stably connected at the connecting handle 4 of the pliers body 1, preventing the insulating handle from accidentally falling off or shifting during installation, and ensuring the preliminary establishment of the connection relationship between the insulating handle and the pliers body 1.

[0026] When the knob 62 is rotated, the connecting rod 63 drives the threaded sleeve 64 to rotate, and at this time, the inner threaded ring 65 moves along the axial direction of the threaded sleeve 64, and in the movement process of the inner threaded ring 65, the limiting rod 66 moves synchronously with the inner threaded ring 65, so that the outer wall of the limiting rod 66 is in contact with the outer side of the elastic clamping plate 52. At this time, the limiting rod 66 limits the elastic deformation of the elastic clamping plate 52, thereby enhancing the connection firmness between the holding part 6 and the connecting part 5, realizing more stable connection between the insulating handle and the pliers body 1, and ensuring that the insulating handle will not easily loosen or fall off when the insulating needle-nose pliers is used for operation.

[0027] Obviously, the embodiments described are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art and related fields without creative labor should belong to the protection scope of the present application. The structures, devices and operation methods not specifically described and explained in the present application, if not specially described and limited, are implemented according to the conventional means in the art.

Claims

1. Insulated needle-nose pliers with replaceable insulated handle, characterized in that, Include: The outer side of the clamp body (1) is fixedly connected with the thimble (2), the inner side of the thimble (2) is rotatably connected with the pin shaft (3), the side of the thimble (2) away from the clamp body (1) is fixedly connected with the connecting handle (4); The outer side of the holding part (6) is inserted with the connecting part (5), the outer wall of the connecting part (5) is fixedly connected with the outer wall of the connecting handle (4), the connecting part (5) comprises an insertion cylinder (51), the outer side of the insertion cylinder (51) is fixedly connected with the elastic clamping plate (52), the inner side of the insertion cylinder (51) is fixedly connected with the limiting block (53); The holding part (6) comprises an insulating handle (61), the inner wall of the insulating handle (61) is rotatably connected with a threaded sleeve (64), the inner side of the threaded sleeve (64) is fixedly connected with a connecting rod (63), the outer side of the threaded sleeve (64) is threadedly connected with an internal thread ring (65), the outer side of the internal thread ring (65) is fixedly connected with a limiting rod (66), the outer side of the insulating handle (61) is fixedly connected with an insertion block (67).

2. The insulated needle-nose pliers with replaceable insulated handle according to claim 1, characterized in that: The outer wall of the insertion cylinder (51) is fixedly connected with the outer wall of the connecting handle (4), the outer side of the insertion block (67) is inserted with the inner side of the insertion cylinder (51).

3. The insulated needle holder of claim 1, wherein: The outer wall of the insertion block (67) is clamped with the outer side of the elastic clamping plate (52) through the clamping groove (68), and the clamping groove (68) is opened in the wall of the insertion block (67).

4. The insulated needle holder of claim 1, wherein: The outer wall of the insertion block (67) is slidably connected with the outer wall of the limiting block (53) through the limiting groove (69), and the limiting groove (69) is opened in the wall of the insertion block (67).

5. The insulated needle holder of claim 1, wherein: The outer side of the insulating handle (61) is rotatably connected with a knob (62), the inner side of the knob (62) is fixedly connected with the outer wall of the connecting rod (63).

6. The insulated needle holder of claim 1, wherein: The side wall of the internal thread ring (65) is slidably connected with the inner wall of the insulating handle (61), the inner wall of the insulating handle (61) is slidably connected with the outer wall of the limiting rod (66), and the outer wall of the limiting rod (66) is in contact with the outer side of the elastic clamping plate (52).

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