TWI812415B - Hole pincers - Google Patents

Abstract

A hole pincers includes a main body, a working portion and a fixed portion. The main body is disposed with a first clamping jaw and a second clamping jaw which can be opened and closed relative to each other. The working portion is disposed on the first clamping jaw and includes a connecting pipe. One end of the connecting pipe facing the second clamping jaw is provided with a needle body. The fixed portion is disposed on one side of the second clamping jaw facing the first clamping jaw. The fixed portion is provided with an accommodating groove

Description

hole pliers

The invention relates to a hole-opening pliers.

Generally speaking, when an air-conditioning compressor is being dismantled, in order to prevent the refrigerant from leaking to the outside and causing environmental pollution, the refrigerant will be recovered first. This is done by drilling holes in the refrigerant pipes and connecting the holes to a recovery device. Recycle. In the process of drilling the refrigerant pipe, the worker needs to use a clamping tool to hold the refrigerant pipe with one hand, and use a drilling tool (such as a needle or drill) with the other hand to drill the refrigerant pipe. This operation process is extremely inconvenient and After drilling, the process of connecting the hole to the recovery device requires removing the drilling tool first. In this case, the problem of refrigerant leakage will still occur, which is a shortcoming that needs to be improved urgently.

Therefore, it is necessary to provide a novel and progressive hole punch to solve the above problems.

The main purpose of the present invention is to provide a hole-opening pliers. The jaws of the hole-opening pliers include a connecting tube. The connecting tube is provided with a needle body, and the needle body is used to penetrate a hole in the radial direction of the tube body and penetrate into the hole. Tube body, the fluid in the tube body can flow into the connecting tube through the perforation of the needle body, and can pass through the connecting tube The through-pipe recycles the fluid in the tube body, which can effectively perform the pipe opening operation with one hand and smoothly recover the fluid in the tube body.

In order to achieve the above object, the present invention provides a hole drilling pliers, which includes a body, a working part and a fixed part. The body is provided with a first jaw and a second jaw that can be opened and closed relative to each other. The working part is located on the first jaw and includes a communication tube. One end of the communication tube faces the second jaw and is provided with a needle. The fixing part is provided on a side of the second jaw facing the first jaw, and the fixing part is provided with a receiving groove.

1: Ontology

11:First jaw clamp

111: First arc segment

12:Second jaw

121: Second arc segment

13:First grip

14: Second grip

15: Connecting rod

2:Work Department

21:Connecting pipe

22: Needle body

23:Buffer parts

24: Collar

25:Lock firmware

26: External thread section

3: Fixed part

31: Container

L1: first direction

L2: Second direction

L3: Third direction

H1: first length

H2: second length

H3: third length

H4: The fourth length

Figure 1 is a side view of a preferred embodiment of the present invention.

Figure 2 is a partial perspective view of a preferred embodiment of the present invention.

Figure 3 is a partially exploded view of a preferred embodiment of the present invention.

Figure 4 is a partial side view of a preferred embodiment of the present invention.

5 to 6 are operational schematic diagrams of a preferred embodiment of the present invention.

Figure 7 is a partial perspective view of another preferred embodiment of the present invention.

The following examples are only used to illustrate the possible implementation modes of the present invention, but are not intended to limit the scope of protection of the present invention.

Please refer to Figures 1 to 6, which show a preferred embodiment of the present invention. The hole drilling pliers of the present invention include a body 1, a working part 2 and a fixed part 3.

The body 1 is provided with a first jaw 11 and a second jaw 12 that can be opened and closed relative to each other.

The working part 2 is provided on the first jaw 11 and includes a communication tube 21 . A needle 22 is provided at one end of the communication tube 21 toward the second jaw 12 .

The fixing part 3 is provided on one side of the second jaw 12 facing the first jaw 11 , and the fixing part 3 is provided with a receiving groove 31 .

In this embodiment, the needle body 22 is provided with a perforation connected with the communication tube 21. In actual operation, the receiving groove 31 can accommodate a tube body, and then the first clamping jaw 11 and the second The clamping jaws 12 are clamped so that the needle body 22 pushes against the outer peripheral wall of the tube body, and the needle body 22 can penetrate a hole in the radial direction of the tube body and extend into the tube body. The fluid in the body can flow into the communication tube 21 through the perforation of the needle body 22, and then the end of the communication tube 21 away from the needle body 22 is connected to a fluid recovery device (not shown), and the fluid can be The fluid recovery device performs recovery. In this embodiment, an end of the communication tube 21 away from the second clamping jaw 12 is provided with an external thread section 26 for connection with the fluid recovery device. Therefore, the present invention is extremely convenient to use. , can effectively perform pipe drilling operations with one hand, and smoothly recover the fluid in the pipe body.

Specifically, the fixing portion 3 protrudes toward the direction of the first jaw 11 so that the receiving groove 31 can have a larger depth.

Among them, one of the first jaw 11 and the second jaw 12 is pivotally connected to the body 1 around a first direction L1; the second jaw 12 is along a second direction L2 transverse to the first direction L1. Extending, the receiving groove 31 is concave along a third direction L3 which is transverse to the first direction L1 and the second direction L2; the fixing portion 3 is protruding along a third direction L3 transverse to the second direction L2. The groove 31 is recessed on the side of the fixed portion 3 away from the second clamping jaw 12. If the groove 31 is deeper, it can accommodate a pipe body with a larger diameter. In addition, the included angle of the bottom of the container 31 is between 55 and 65 degrees, and is 45 degrees in this embodiment.

Furthermore, in this embodiment, the body 1 includes a first handle 13, a second handle 14 and a connecting rod 15. The first jaw 11 is fixed on the first handle 13. The two jaws 12 are pivotally connected between the second handle 14 and the first handle 13. The connecting rod 15 is connected between the first handle 13 and the second handle 14. The user can use a single By holding the first handle 13 and the second handle 14 and pressing, the first jaw 11 and the second jaw 12 can be clamped together, which has a labor-saving effect.

Viewed along the first direction L1, the communication tube 21 is provided with a buffer member 23, and the needle body 22 protrudes from the buffer member 23, such as an elastic member. Preferably, the buffer member 23 is rubber. When the needle body 22 penetrates the pipe body, the buffer member 23 can resist the pipe body to prevent the communication pipe 21 from contacting the pipe body and causing the pipe body to deform, and the buffer member 23 can have a sealing effect to avoid The fluid overflows from the hole in the pipe body to the outside. The radial size of the buffer member 23 defines a first length H1, and the depth of the groove 31 along the third direction L3 defines a second length H2. The ratio of the length H2 to the first length H1 is 1.2 to 0.8, which is 1 in this embodiment. Therefore, the buffer member 23 has a larger coverage area to reliably prevent fluid from overflowing from the hole in the pipe body to the outside. In other embodiments, the communication tube 21 may not be provided with the buffer member, and the needle body 22 can still effectively penetrate the tube body (as shown in FIG. 7 ).

Furthermore, the groove 31 is a V-shaped groove. The width of the groove 31 along the second direction L2 defines a third length H3. The ratio of the third length H3 to the first length H1 is 2 to 2.5. In this embodiment, it is 2, so that the accommodating groove 31 can accommodate a pipe body with an outer diameter that is more than twice the first length H1. The thickness of the fixing part 3 protruding from the second jaw 12 along the third direction L3 defines a fourth length H4, and the ratio of the fourth length H4 to the second length H2 is 1.2 to 1.8, so that the fixing part 3 The second clamping jaw 12 is greatly protruded, which can reduce the swing range of the first clamping jaw 11 and the second clamping jaw 12 .

In addition, the working part 2 includes a set of rings 24, and the communication pipe 21 is passed through the set of rings 24. A locking piece 25 is screwed in the radial direction of the set of rings 24, and the locking piece 25 radially abuts the connecting piece. tube 21 so that the The communication tube 21 is fixed to the collar 24 so that the communication tube 21 can be replaced to improve the durability and practicality of the hole-opening pliers. In this embodiment, the collar 24 is provided at one end of the first clamping jaw 11 along the second direction L2, and the radial size of the buffer member 23 is no larger than the communication tube 21 to prevent the buffer member 23 from interfering with the sleeve. ring 24 and the communication tube 21 cannot be penetrated through the collar 24 .

Preferably, the first clamping jaw 11 is provided with a first arc section 111 on a side away from the second clamping jaw 12 , and a second arc section 111 is provided on a side of the second clamping jaw 12 away from the first clamping jaw 11 . Shape section 121, the curvature of the first arc section 111 is greater than the curvature of the second arc section 121, since the working part 2 is provided at the first clamping jaw 11, the first clamping jaw 11 is used for exerting force In the pipe body, the first arc-shaped section 111 of the first clamping jaw 11 has a larger curvature, so that the first clamping jaw 11 has greater structural strength and can avoid deformation. It is also preferable that the thickness of the first clamping jaw 11 along the third direction L1 is greater than the thickness of the second clamping jaw 12 along the third direction L1, which can also prevent the first clamping jaw 11 from exerting force on the tube. The body is deformed.

In this embodiment, the collar 24 is cylindrical, and the radial size of the collar 24 is smaller than the length of the groove 31 along the second direction L2, so that when the groove 31 does not accommodate the pipe body and the When the first jaw 11 and the second jaw 12 are brought together, the collar 24 can be limited in the groove 31. The collar 24 is integrally connected to an end of the first jaw away from the first handle. The thickness of the collar 24 along the third direction L3 is smaller than the thickness of the fixing portion 3 along the third direction L3 to prevent the collar 24 from excessively protruding from the groove 31 when the collar 24 is limited in the groove 31 . slot 31.

1: Ontology

11:First jaw clamp

12:Second jaw

2:Work Department

21:Connecting pipe

22: Needle body

23:Buffer parts

24: Collar

25:Lock firmware

26: External thread section

3: Fixed part

31: Container

Claims (10)

A hole-opening pliers, including: A body is provided with a first jaw and a second jaw that can be opened and closed relative to each other; A working part, located on the first jaw, includes a communication tube, and a needle is provided at one end of the communication tube facing the second jaw; A fixed part is provided on one side of the second jaw facing the first jaw, and the fixed part is provided with a receiving groove. The hole-cutting pliers of claim 1, wherein the fixed portion protrudes toward the direction of the first clamping jaw. The hole-cutting pliers of claim 1, wherein one of the first jaw and the second jaw is pivotally connected to the body around a first direction. The hole-cutting pliers of claim 3, wherein the second jaw extends along a second direction transverse to the first direction, and the groove is concave along a third direction transverse to the first direction and the second direction. It is provided that; the fixed part is protruding along a third direction transverse to the second direction, and the groove is recessed on a side of the fixed part away from the second jaw. The hole-opening pliers of claim 4, wherein viewed along the first direction, the communication tube is provided with a buffer member, the needle protrudes from the buffer member, and the radial size of the buffer member defines a first length, the groove depth of the groove along the third direction defines a second length, and the ratio of the second length to the first length is 1.2 to 0.8. The hole-cutting pliers of claim 5, wherein the groove is a V-shaped groove, the width of the groove along the second direction defines a third length, and the ratio of the third length to the first length is 2 to 2.5; The thickness of the fixed portion protruding from the second jaw along the third direction defines a fourth length, and the ratio of the fourth length to the second length is 1.2 to 1.8. The hole-cutting pliers as described in claim 1, wherein the working part includes a set of rings, the communication tube is passed through the set of rings, and a locking piece is screwed in the radial direction of the set of rings, and the locking piece radially abuts in this connecting pipe. The hole-opening pliers of claim 1, wherein the first clamping jaw is provided with a first arc section on a side away from the second clamping jaw, and the second clamping jaw is provided with a first arc section on a side away from the first clamping jaw. The curvature of the second arc segment is greater than the curvature of the second arc segment. The hole-cutting pliers of claim 5, wherein the fixed part protrudes toward the direction of the first jaw; the groove is a V-shaped groove, and the width of the groove along the second direction defines a third length, The ratio of the third length to the first length is 2 to 2.5; the thickness of the fixed portion protruding from the second jaw along the third direction defines a fourth length, and the ratio of the fourth length to the second length is 1.2 to 1.8; the working part includes a set of rings, the communication tube is passed through the collar, and a locking piece is screwed in the radial direction of the collar, and the locking piece radially abuts against the communicating pipe; the third A clamping jaw is provided with a first arc-shaped section on a side away from the second clamping jaw, and a second arc-shaped section is provided on a side of the second clamping jaw away from the first clamping jaw. The curvature of the first arc-shaped section Greater than the curvature of the second arc segment; the collar is provided at one end of the first jaw along the second direction; the buffer is made of rubber; the radial size of the buffer is not larger than the communicating tube; the communicating tube An external thread section is provided at one end away from the second clamping jaw; the included angle at the bottom of the groove is between 55 and 65 degrees; the body includes a first handle, a second handle and a connecting rod. The first clamp The jaw is fixed on the first handle, the second jaw is pivotally connected between the second handle and the first handle, and the connecting rod is connected between the first handle and the second handle. ; The thickness of the first jaw along the third direction is greater than the thickness of the second jaw along the third direction. The hole tapping pliers of claim 9, wherein the collar is cylindrical, the radial size of the collar is smaller than the length of the groove along the second direction, and the collar is integrally connected to the first jaw away from At one end of the first handle, the thickness of the collar along the third direction is smaller than the thickness of the fixing part along the third direction.

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