PE pipe pulling-out auxiliary tool

Abstract

The invention relates to the technical field of pipelines, in particular to an auxiliary tool for pulling out a PE pipe. An auxiliary tool for pulling out a PE pipe is used for pulling out the PE pipe from a connector, and an anti-retreating ring is arranged between the PE pipe and the connector. The auxiliary tool for pulling out the PE pipe comprises a body with the length direction Y and the width direction X; the body comprises an abutting pressing part and a clamping part, the abutting pressing part is provided with a top surface and a bottom surface in the height direction, the top surface is used for receiving external pressure, and the bottom surface is used for applying pressure to the anti-retreating ring; the clamping groove is formed in the body and used for clamping a PE pipe; in the using state, the PE pipe is clamped into the clamping groove, the bottom face abuts against the anti-retreating ring, and after the top face receives pressure applied by a human hand or fingers, the bottom face downwards presses the anti-retreating ring. And in a standby state, the clamping part is clamped between any two fingers. The auxiliary tool for pulling out the PE pipe is convenient to use and saves labor.

Description

Technical Field

[0001] The present application relates to the technical field of pipelines, and in particular to a PE pipe extraction auxiliary tool. Background Art

[0002] An anti-retraction ring is provided at the place where the PE pipe joint is connected to the PE pipe, and an undercut is provided on the anti-retraction ring. When the PE pipe is pulled out, the undercut will tighten and the PE pipe cannot be pulled out directly. Therefore, when pulling out the pipe, it is necessary to press down the anti-retraction ring first so that the undercut will not tighten when the PE pipe is pulled out, so that the PE pipe can be pulled out smoothly. The existing auxiliary tool for pulling out PE pipes is usually a wrench. The head of the wrench is placed on the anti-retraction ring to form a fulcrum. Then, the handle of the wrench is held and the handle is turned, so that the head of the wrench performs a lever movement relative to the fulcrum, thereby pressing the anti-retraction ring.

[0003] However, this method of use is a "labor-intensive lever", especially when the surface of the pipe becomes rough after repeated insertion and extraction, and it is even more difficult to pull it out. The method of use is not "convenient" enough, and requires alignment and leveling, which can easily cause workers to tilt the tool when using it, and the anti-retraction ring may not be pressed into place, making it difficult to pull out. In addition, the PE pipe joint must be in a fixed state when in use. If there is no fulcrum to fix or press the joint, it will be more difficult to use. Workers will be more likely to get tired using such tools, resulting in reduced efficiency. Summary of the invention

[0004] Based on this, it is necessary to provide a convenient and labor-saving PE pipe extraction auxiliary tool.

[0005] A PE pipe extraction auxiliary tool is used to extract the PE pipe from a joint, and an anti-retraction ring is provided between the PE pipe and the joint; the PE pipe extraction auxiliary tool comprises:

[0006] The body has a length direction Y and a width direction X; the body includes a resisting and pressing portion and a clamping portion, and along the height direction, the resisting and pressing portion has a top surface and a bottom surface, the top surface is used to receive external pressure, and the bottom surface is used to apply pressure to the anti-retraction ring;

[0007] A clamping slot is provided on the main body and is used for clamping the PE pipe;

[0008] The PE tube extraction auxiliary tool includes a use state and a standby state; in the use state, the PE tube is inserted into the slot, the bottom surface abuts against the anti-retraction ring, and after the top surface receives the pressure applied by a hand or finger, the bottom surface presses the anti-retraction ring downward; in the standby state, the clamping part is clamped between any two fingers.

[0009] In one embodiment, the resisting and pressing portion is provided in plurality, and the plurality of resisting and pressing portions are provided on both sides of the clamping portion and are respectively connected to the clamping portion; the plurality of resisting and pressing portions and the clamping portion are arranged to surround and form the card slot.

[0010] In one embodiment, the resisting and pressing portion and the clamping portion are an integrally formed structure.

[0011] In one of the embodiments, the clamping portion is protruded from a side of the body away from the card slot in a direction away from the card slot, and a width of the clamping portion is smaller than a width of the body.

[0012] In one embodiment, the body is provided in plurality, and the plurality of bodies are at least positioned as a first body and a second body, the first body and the second body are arranged back to back, and the clamping parts of the two are connected to each other; the side wall of the first body, the side wall of the second body, and the side wall of the clamping part are arranged to form a clamping groove.

[0013] In one embodiment, the card slot is set to be multiple, and the multiple card slots are at least defined as a first card slot and a second card slot, the first card slot is opened on the first body, and the second card slot is opened on the second body; the width of the first card slot is L1, the width of the second card slot is L2, and L1 and L2 satisfy the relationship: L1≥L2.

[0014] In one embodiment, at least part of the inner wall of the slot is an arc inner wall, and the center of the part of the arc inner wall is O; the abutting pressing portion protrudes from the center O along the length direction Y, and the length of the protruding portion is L3, 15mm≥L3≥10mm.

[0015] In one embodiment, along the width direction X, the width of the abutting and pressing portion is D1, 25mm≥D1≥12mm; along the length direction Y, the length of the abutting and pressing portion is D2, 40mm≥D2≥20mm; along the width direction X, the width of the clamping portion is D3, 18mm≥D3≥3mm; along the length direction Y, the length of the clamping portion is D4, 50mm≥D4≥15mm.

[0016] In one embodiment, the thickness of the clamping portion is H1, 10mm≥H1≥2mm; the thickness of the resisting and pressing portion is H2, and the thickness of the main body is H3, and H1, H2, and H3 satisfy the relationship: H1=H2=H3.

[0017] In one embodiment, along the length direction Y, the length of the clamping groove is D5, 50mm≥D4≥30mm.

[0018] Compared with the prior art, the operating principle of the PE tube extraction auxiliary tool is as follows: after applying pressure in the height direction to the resistance pressing part, the resistance pressing part directly transmits the pressure to the anti-slip ring, and the anti-slip ring moves downward after receiving the downward pressure. The existence of no gripping and laborious lever is equivalent to adding a prosthesis to the hand. The anti-slip ring can be pressed directly by pressing the hand or fingers. It is convenient and labor-saving to use. The PE tube can be easily pulled out with one hand or the other hand, and the operation is easy and labor-saving. Secondly, in the standby state, it can be clamped between any two fingers by the clamping part. After clamping, the auxiliary tool does not need to be removed or changed in position. The operator can directly perform other work without affecting the grip and use of the operator's hand. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 Schematic diagram of the structure of the PE pipe extraction auxiliary tool provided in this application.

[0021] Figure 2 for Figure 1 Front view of .

[0022] Figure 3 for Figure 1 Side view of.

[0023] Figure 4 This is a structural schematic diagram of one embodiment of the PE pipe extraction auxiliary tool provided in the present application.

[0024] Figure 5 for Figure 4 Front view of .

[0025] Figure 6 for Figure 4 Side view of.

[0026] Figure 7 This is a structural schematic diagram of one embodiment of the PE pipe extraction auxiliary tool provided in the present application.

[0027] Figure 8 for Figure 7 Front view of .

[0028] Fig. 9 for Figure 7 Side view of.

[0029] Fig.10This is a schematic diagram of the PE pipe and connector provided in this application.

[0030] Fig.11 A schematic diagram of the working of the PE pipe extraction auxiliary tool provided for this application.

[0031] Fig.12 Auxiliary tool for the extraction of existing PE pipes.

[0032] Fig.13 Schematic diagram of the working process of the auxiliary tool for extracting the existing PE pipe.

[0033] Figure numerals: 100, PE pipe; 200, joint; 300, anti-retraction ring; 1, main body; 1a, first main body; 1b, second main body; 2, slot; 21, first slot; 22, second slot; 23, arc inner wall; 11, abutting and pressing part; 111, top surface; 112, bottom surface; 12, clamping part; 13, clamping arm; 14, clamping slot. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0035] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0037] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, a first feature being “above”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0038] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more related listed items.

[0039] An anti-recoil ring 300 is provided at the place where the PE pipe joint 200 is connected to the PE pipe 100. There is a circle of inverted buckles inside the anti-recoil ring 300, and the inverted buckles are attached to the supporting claws. The supporting claws are circular and can shake, and the outer diameter of the supporting claws close to the inner end is larger. When the PE pipe 100 is pulled outward, the inverted buckles are pulled outward along with the anti-recoil ring 300, and the outlet diameter is smaller. Since the outer diameter inside the anti-recoil ring 300 is large, the supporting claws will be tightened and the inverted buckles will also be tightened, so the pipe cannot be easily pulled out. To pull out the pipe, the anti-recoil ring 300 needs to be pressed in to prevent the inverted buckles from tightening, so that it can be pulled out more easily. (The anti-retraction ring 300 can be understood as a cone, similar to a badminton, and the joint 200 is a cylindrical tube. When in use, it is equivalent to pulling out a conical badminton from a cylindrical tube, with the small head first. The diameter of the cylindrical hole is smaller than the diameter of the bottom circle of the cone. The conical badminton needs to shrink the tail to pass through. When it shrinks, the undercut will grasp the PE tube 100, and the more it is pulled out, the tighter it will be, which plays an anti-retraction role.

[0040] Existing PE pipe extraction auxiliary tools such as Fig.12 As shown, the anti-retraction ring 300 of the joint 200 is pried out by pressing the handle ( Fig.13 ), this method of use is a "labor lever", especially after the tube has been inserted and pulled out many times, the surface becomes rough, and it is more difficult to pull out, and if it is not followed Fig.13When used horizontally as shown, the anti-retraction ring 300 may not be fully pressed and may tilt, making it difficult to pull out. Since the method of use is not "convenient" enough and needs to be aligned and adjusted to the level, it is easy for workers to tilt the tool when using it. And when using it, the PE pipe 100 joint 200 must be in a fixed state. If there is no fulcrum to fix or press the joint 200, it will be difficult to use. Workers will be more likely to get fatigued when using such a tool, resulting in reduced efficiency. Although there is a change to improve the main slot 2 by adding an inclination angle, it is still a laborious lever and there are still problems with its pressing stability. Therefore, the existing PE pipe 100 extraction tool has defects such as being laborious and difficult to use.

[0041] See also Figures 1 to 11 The present application provides a PE pipe extraction auxiliary tool for extracting a PE pipe 100 from a connector 200. Fig.10 As shown, an anti-retraction ring 300 is provided between the PE tube 100 and the joint 200. Specifically, the PE tube extraction auxiliary tool is used to press the anti-retraction ring 300 to pull the PE tube 100 out of the joint 200. Figures 1 to 3 As shown, the PE tube extraction auxiliary tool includes a main body 1 and a card slot 2, and the main body 1 has a length direction Y and a width direction X. Among them, the main body 1 includes a resisting and pressing portion 11 and a clamping portion 12. Along the height direction, the resisting and pressing portion 11 has a top surface 111 and a bottom surface 112, the top surface 111 is used to receive external pressure, and the bottom surface 112 is used to apply pressure to the anti-retraction ring 300. The card slot 2 is opened on the main body 1 and is used to clamp the PE tube 100. The PE tube extraction auxiliary tool includes a use state and a standby state. In the use state, the PE tube 100 is inserted into the card slot 2, and the bottom surface 112 of the resisting and pressing portion 11 abuts against the anti-retraction ring 300. After the top surface 111 receives the pressure applied by the hand or fingers, the bottom surface 112 presses the anti-retraction ring 300 downward. In the standby state, the clamping portion 12 is clamped between any two fingers.

[0042] It can be understood that when in use, after a person's hand or fingers applies pressure in the height direction to the top surface 111 of the resisting and pressing part 11, the bottom surface 112 of the resisting and pressing part 11 directly transfers the pressure to the anti-slip ring, and the anti-slip ring moves downward under the downward pressure. At this time, the PE pipe 100 can be pulled out.

[0043] One-handed operation (the position of the connector 200 is fixed): the clamping part 12 is clamped between the knuckles of two fingers, one of the two fingers is located below the clamping part 12, and the other finger is located above the clamping part 12 and the abutting and pressing part 11. In this state, the card slot 2 is clamped onto the PE tube 100, the bottom surface 112 of the abutting and pressing part 11 abuts against the anti-retraction ring 300, and the remaining fingers hold the PE tube 100. When pulling out the tube, the finger located above the clamping part 12 applies pressure downward (i.e., applies pressure to the abutting and pressing part 11), and the finger holding the PE tube 100 pulls the tube upward at the same time, and pulls the PE tube 100 upward.

[0044] Two-handed operation (the position of the connector 200 is not fixed): the clamping portion 12 is clamped between the knuckles of two fingers of one hand, and the remaining knuckles of the two fingers that are not clamped cover the top of the abutting and pressing portion 11. In this state, the card slot 2 is clamped onto the PE tube 100, the bottom surface 112 of the abutting and pressing portion 11 abuts against the anti-retraction ring 300, and the remaining fingers of this hand grasp the connector 200. The other hand holds the PE tube 100, and then the fingers covering the top of the abutting and pressing portion 11 apply pressure downward (i.e., apply pressure to the abutting and pressing portion 11), and the fingers holding the PE tube 100 pull the tube upward at the same time, and pull the PE tube 100 upward.

[0045] The operator only needs to apply pressure to the resisting pressing part 11 with his fingers, and a direct pressing method is adopted, without the existence of gripping and laborious levers, which is easy to use and labor-saving. Secondly, only two fingers of the operator are used for clamping and applying pressure, which retains the gripping function of the operator's hand, which is equivalent to adding a prosthesis to the hand. When the position of the PE tube 100 is fixed, the operator's remaining fingers can directly grasp the PE tube 100 for pulling out. That is, the tube removal operation can be achieved with one hand, which is easy to operate and labor-saving. Even when the PE tube 100 connector 200 is not easy to fix, it only needs to be assisted by other fingers, and the anti-retraction ring 300 can be easily pressed with one hand, which helps to improve the efficiency of the PE tube 100 that needs to be frequently pulled out or only a large number of tube removals.

[0046] The direct pressure of the resisting pressing part 11 can effectively improve the problem that the anti-retraction ring 300 is not fully pressed down, or the pressing is biased to one side, resulting in the pipe being difficult to pull out. The clamping part 12 can not only help straighten during use, but in the standby state, the clamping part 12 can be clamped between any two fingers, and can be clamped after use without affecting the operator's hand grip and use, eliminating the need to put down the action and the need to frequently pick up and put down the tool. Use at workstations that need to frequently plug and unplug PE pipes 100 joints 200 can greatly reduce employee fatigue, thereby improving work efficiency.

[0047] In one embodiment, the plurality of abutting and pressing portions 11 are provided, and the plurality of abutting and pressing portions 11 are disposed on both sides of the clamping portion 12 and are respectively connected to the clamping portion 12 ; the plurality of abutting and pressing portions 11 and the clamping portion 12 are arranged to surround and form the card slot 2 .

[0048] Exemplarily, two contact pressing parts 11 are provided, and along the width direction X of the main body 1, the card slot 2 is located between the two contact pressing parts 11, and the two ends of the clamping part 12 are respectively connected to the two contact pressing parts 11, and the space enclosed by the inner sides of the two contact pressing parts 11 and the inner sides of the clamping part 12 is the card slot 2.

[0049] Understandably, in this state, the card slot 2 and the clamping portion 12 are located in the middle, and the contact pressing portion 11 is arranged on both sides. When pressing the anti-slip ring, the contact pressing portion 11 can contact the anti-slip ring to the greatest extent along the outer ring of the card slot 2, and when pressure is applied to the contact pressing portion 11 later, the anti-slip ring can be pressed down more completely. Since it is directly pressed, basically all the force is used to press the contact pressing portion 11, and the contact pressing portion 11 is arranged on both sides, and the force is basically symmetrical and in the same direction, which makes it easier to completely press the anti-retraction ring 300 of the connector 200. When pressing, the anti-retraction ring 300 cannot easily tilt, which causes the difficulty in pulling out the tube.

[0050] Secondly, when the clamping part 12 is clamped between two fingers, the card slot 2 can make room for a certain position, and the entire auxiliary tool will not occupy too much finger position for clamping, thereby improving the flexibility of the operator's hand after clamping, and further improving the labor-saving and convenience of operation. In addition, the resisting and pressing parts 11 are arranged on both sides of the clamping part 12, so that when clamping, the structure on one side will not be too large or too heavy, and it is not easy to tilt to one side, and the clamping is stable.

[0051] Preferably, the central axis of the clamping portion 12 is coaxially arranged with the central axis of the body 1 , and the clamping portion 12 protrudes outward from the center of the body 1 .

[0052] Preferably, the two abutting and pressing parts 11 disposed on both sides of the clamping part 12 are of the same shape and size, and the two abutting and pressing parts 11 are symmetrically disposed along the central axis of the body 1. It is ensured that the two abutting and pressing parts 11 are symmetrically stressed, and the pressure applied to the anti-retraction ring 300 is in the same direction, so that it is easier to completely press the anti-retraction ring 300 of the connector 200, and the anti-retraction ring 300 will not easily tilt when pressed, which will cause the tube to be difficult to remove.

[0053] Of course, the invention is not limited thereto, and in other embodiments, the shape and size of the resisting pressing portion 11 may also be set to be consistent, and may not be symmetrically arranged along the central axis of the clamping portion 12, as long as the anti-slip ring can be pressed.

[0054] In one embodiment, the abutting pressing portion 11 and the clamping portion 12 are an integrally formed structure, which can be formed in one piece by stamping, die casting, injection molding, etc., which is easy to process, and is not prone to disconnection at the connection during long-term use, and has a long service life.

[0055] Of course, the present invention is not limited thereto. In other embodiments, the abutting and pressing portion 11 and the clamping portion 12 may also be provided separately and connected by welding, bonding or the like.

[0056] like Figures 4 to 6 As shown, in one embodiment, the clamping portion 12 is protruded from the body 1, specifically, it is protruded from the side of the body 1 away from the card slot 2 to the direction away from the card slot 2. Preferably, the width of the clamping portion 12 is smaller than the width of the body 1.

[0057] Understandably, the clamping portion 12 protrudes from the main body 1 and has a certain length. When the fingers clamp the clamping portion 12, you can choose to clamp the clamping portion 12 only between the fingers, and the rest of the main body 1 corresponds to the palm or the back of the palm. Basically, only one joint of the finger is needed for clamping, which makes the fingers more flexible and will not feel uncomfortable due to clamping too large objects.

[0058] like Figures 7 to 9 As shown, in one embodiment, the body 1 is provided in plurality, and the plurality of bodies 1 are at least positioned as a first body 1a and a second body 1b, the first body 1a and the second body 1b are arranged back to back, and the clamping portions 12 of the two are connected to each other. The side wall of the first body 1a, the side wall of the second body 1b, and the side wall of the clamping portion 12 are surrounded to form a clamping groove 14.

[0059] Furthermore, the card slots 2 are provided in plurality, and the plurality of card slots 2 are at least defined as a first card slot 21 and a second card slot 22, wherein the first card slot 21 is provided on the first body 1a, and the second card slot 22 is provided on the second body 1b. The width of the first card slot 21 is L1, and the width of the second card slot 22 is L2, and L1 and L2 satisfy the relationship: L1≥L2.

[0060] It is understandable that the two interconnected clamping parts 12 constitute a clamping arm 13, and the two ends of the clamping arm 13 are respectively the first body 1a and the second body 1b, and the first body 1a and the second body 1b are respectively provided with a first card slot 21 and a second card slot 22. The first body 1a and the second body 1b can both perform a pressing operation on the anti-slip ring, which is more flexible to use. The clamping groove 14 is located on the side of the clamping arm 13 to make room for the fingers for easy clamping. And the first body 1a and the second body 1b at both ends play a certain limiting role when clamping, and the tool is not easy to slip away from the knuckles.

[0061] Exemplarily, L1 and L2 satisfy the relationship: L1>L2. That is, the widths of the first clamping groove 21 and the second clamping groove 22 are different, and the corresponding diameters of the PE tubes 100 that can be clamped are also different, so as to adapt to the extraction of PE tubes 100 of different diameters (such as two-branch tubes and three-branch tubes). When operating the extraction of PE tubes 100 of different sizes, there is no need to frequently change tools. The extraction auxiliary tool implements "no need to remove, no need to change position", and other work can be continued directly, with high work efficiency.

[0062] Exemplarily, the specific values ​​of L1 and L2 are set according to actual needs, as long as they are adapted to the diameters of different types of PE pipes 100 in the working conditions.

[0063] Further, at least part of the inner wall of the slot 2 is a circular arc inner wall 23, the PE tube 100 and the anti-backlash ring 300 are both circular tubes, and part of the slot 2 is set as the circular arc inner wall 23, which is better adapted to the PE tube 100 and the anti-backlash ring 300. Preferably, the circular arc inner wall 23 is arranged on the side of the slot 2 close to the clamping portion 12, that is, the side of the slot 2 closer to the center of the body 1.

[0064] Furthermore, the center of the arc inner wall 23 of this part is O. The resisting and pressing part 11 protrudes from the center O along the length direction Y, and the length of the protruding part is L3, 15mm≥L3≥10mm. Under this structure, it is ensured that the length of the resisting and pressing part 11 is greater than the radius of the circle of the card slot 2 of the PE tube 100, and the anti-retraction ring 300 is pressed more fully. When the length exceeds 10mm-15mm, it is more labor-saving when pressing.

[0065] Among them, the value of L3 can be 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, etc. Of course, you can also choose the corresponding value according to the actual situation, which is not elaborated here.

[0066] Furthermore, along the width direction X, the width of the abutting and pressing portion 11 is D1, 25 mm ≥ D1 ≥ 12 mm. Along the length direction Y, the length of the abutting and pressing portion 11 is D2, 40 mm ≥ D2 ≥ 20 mm. Along the width direction X, the width of the clamping portion 12 is D3, 18 mm ≥ D3 ≥ 3 mm. Along the length direction Y, the length of the clamping portion 12 is D4, 50 mm ≥ D4 ≥ 15 mm.

[0067] Understandably, if the width of the resisting and pressing portion 11 is set too small, the area of ​​the finger applying pressure when covering the resisting and pressing portion 11 and pressing the resisting and pressing portion 11 is too small, and the resisting area between the resisting and pressing portion 11 and the anti-slip ring is also small, and the pressure cannot be transmitted well, and the comfort when the finger applies pressure is also poor. If the width of the resisting and pressing portion 11 is set too large, the width of the entire body 1 will be too large, which will easily affect the gripping effect after the hand clamps the tool, and when there are other obstacles near the PE pipe 100 or the joint 200, it is easy to be blocked and cannot be put in, thereby affecting the use. When the width of the resisting and pressing portion 11 is set to 25mm≥D1≥12mm, it can be ensured that the resisting and pressing portion 11 covers at least 2 / 3 of the finger width, and it can be ensured that the gripping is not affected.

[0068] Similarly, if the length of the contact and pressing portion 11 is set too small, the area where the finger applies pressure when covering the contact and pressing portion 11 and pressing the contact and pressing portion 11 is too small, and the contact area between the contact and pressing portion 11 and the anti-slip ring is also small, and the pressure cannot be transmitted well, and the comfort when the finger applies pressure is also poor. If the length of the contact and pressing portion 11 is set too large, the position where the finger applies pressure when covering the contact and pressing portion 11 and pressing the contact and pressing portion 11 is too far back, and the center of the anti-retraction ring 300 is too far away, and the pressure cannot be transmitted well to the anti-retraction ring 300, which affects the use effect. When the length of the contact and pressing portion 11 is set to 20mm-40mm, it can not only ensure that the contact and pressing portion 11 covers at least 2 / 3 of the finger length, but also ensure that it does not exceed the finger length too much, thereby ensuring a good use effect.

[0069] Understandably, when operating with both hands, two fingers clamp the clamping portion 12 one above and one below, and when applying pressure, the clamping portion 12 will also apply a certain amount of pressure to the fingers. If the width of the clamping portion 12 is set too small, the clamping portion 12 will be too thin, so that the pressure on the fingers is too large. When operating with one hand, the clamping portion 12 is horizontally added between the two fingers in the width direction. If the width of the clamping portion 12 is set too large, the clamping portion 12 is too thick, which not only makes the fingers uncomfortable to clamp, but also weakens the subsequent force when applying pressure on the resisting pressing portion 11 after the fingers are too separated. When the width of the clamping portion 12 is set to 3mm-18mm, it can ensure both comfortable clamping and good pressure on the fingers, thereby ensuring a good use effect.

[0070] Understandably, during the tube removal operation, the clamping portion 12 not only plays a clamping role, but also plays a certain auxiliary support role. If the length of the clamping portion 12 is set too short, not exceeding the thickness of a finger, the clamping is more laborious, and the auxiliary support effect is also poor. If the length of the clamping portion 12 is set too long, the overall weight and position of the center of gravity of the clamping portion 12 will be backward, which will also cause the clamping to be more laborious, and the auxiliary support effect is also poor. When the length of the clamping portion 12 is set to 15mm-50mm, it can not only ensure comfortable and easy clamping, but also ensure that the clamping portion 12 plays an auxiliary support role at the same time, improve the comfort of use, and can also be more labor-saving to use.

[0071] Secondly, the width of the resisting and pressing part 11, the width of the clamping part 12, and the length of the resisting and pressing part 11 jointly limit the size of the part of the main body 1 located on the inner side of the palm when the tool is in the clamping state. The selection of the above-mentioned values, while ensuring the respective use effects of the resisting and pressing part 11 and the clamping part 12, also ensures that the size of the part of the main body 1 located on the inner side of the palm is appropriate and does not excessively occupy the space in the palm. Whether it is making a hollow fist, bending the fingers, grasping, or even fully extending the palm with the fingers facing upward, all actions can be operated normally, thereby maximizing the "prosthetic" effect of the tool, saving time and effort, and ensuring that the tool can be clamped in the hand "without being removed or changed in position", thereby improving work efficiency.

[0072] Exemplarily, the value of D1 is preferably set to 23 mm ≥ D1 ≥ 12 mm. The value of D1 can be 12 mm, 14 mm, 16 mm, 19 mm, 21 mm, 23 mm, etc. Of course, the corresponding value can also be selected according to the actual situation, which will not be described in detail here.

[0073] Exemplarily, the value of D2 is preferably set to 50 mm ≥ D2 ≥ 30 mm. The value of D2 can be 30 mm, 34 mm, 40 mm, 44 mm, 50 mm, etc. Of course, the corresponding value can also be selected according to the actual situation, which will not be described in detail here.

[0074] Exemplarily, the value of D3 is preferably set to 10 mm ≥ D3 ≥ 5 mm. The value of D3 can be 5 mm, 7 mm, 9 mm, 10 mm, etc. Of course, the corresponding value can also be selected according to the actual situation, which will not be described in detail here.

[0075] Exemplarily, the value of D4 is preferably set to 40 mm ≥ D4 ≥ 17 mm. The value of D4 can be 17 mm, 20 mm, 25 mm, 30 mm, 35 mm, 38 mm, 40 mm, etc. Of course, the corresponding value can also be selected according to the actual situation, which will not be described in detail here.

[0076] Furthermore, the thickness of the clamping portion 12 is H1, 10mm≥H1≥2mm. If the thickness of the clamping portion 12 is too thin, the strength is insufficient, the auxiliary support cannot be provided, and the clamping portion 12 is easily damaged. If the thickness of the clamping portion 12 is too thick, the clamping is inconvenient, which affects the use. When the thickness of the clamping portion 12 is 2mm-10mm, it is most suitable.

[0077] Exemplarily, the value of H1 may be 2 mm, 4 mm, 6 mm, 8 mm, 10 mm, etc. Of course, a corresponding value may also be selected according to actual conditions, which will not be described in detail here.

[0078] In one embodiment, the thickness of the resisting and pressing part 11 is H2, the thickness of the main body 1 is H3, and H1, H2, and H3 satisfy the relationship: H1 = H2 = H3. The thickness of the entire auxiliary tool is consistent, which is more convenient for holding and pressing.

[0079] Furthermore, along the length direction Y, the length of the clamping groove 14 is D5, 50mm≥D4≥30mm. When the main body 1 is set to multiple, the clamping groove 14 is the activity space for the operator's fingers. If the length of the clamping groove 14 is set too long, the activity range is too tight, which is inconvenient for finger movement and inconvenient operation. If the length of the clamping groove 14 is set too long, the corresponding clamping arm 13 is also too long, which not only wastes materials and increases costs, but also easily interferes with operations. When the length of the clamping groove 14 is set to 30mm-50mm, it is most suitable.

[0080] Exemplarily, the value of D5 may be 30 mm, 35 mm, 38 mm, 40 mm, 45 mm, 50 mm, etc. Of course, the corresponding value may also be selected according to the actual situation, which will not be described in detail here.

[0081] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0082] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of patent protection of the present application shall be subject to the attached claims.

Claims

1. A PE pipe extraction auxiliary tool, used for extracting a PE pipe (100) from a joint (200), wherein an anti-retraction ring (300) is provided between the PE pipe (100) and the joint (200); characterized in that: The PE pipe extraction auxiliary tool comprises: The body (1) has a length direction Y and a width direction X; the body (1) comprises a resisting and pressing portion (11) and a clamping portion (12); along the height direction, the resisting and pressing portion (11) has a top surface (111) and a bottom surface (112); the top surface (111) is used to receive external pressure, and the bottom surface (112) is used to apply pressure to the anti-retraction ring (300); A clamping groove (2) is provided on the body (1) and is used for clamping the PE pipe (100); The PE tube extraction auxiliary tool comprises a use state and a standby state; in the use state, the PE tube (100) is inserted into the slot (2), the bottom surface (112) abuts against the anti-retraction ring (300), and after the top surface (111) receives pressure applied by a hand or finger, the bottom surface (112) presses the anti-retraction ring (300) downward; in the standby state, the clamping portion (12) is clamped between any two fingers.

2. The PE pipe extraction auxiliary tool according to claim 1, characterized in that: The abutting and pressing parts (11) are provided in plurality, and the plurality of abutting and pressing parts (11) are arranged on both sides of the clamping part (12) and are respectively connected to the clamping part (12); the plurality of abutting and pressing parts (11) and the clamping part (12) are arranged to surround and form the clamping slot (2).

3. The PE pipe extraction auxiliary tool according to claim 1, characterized in that: The resisting and pressing portion (11) and the clamping portion (12) are an integrally formed structure.

4. The PE pipe extraction auxiliary tool according to claim 1, characterized in that: The clamping portion (12) is protruding from a side of the body (1) away from the card slot (2) in a direction away from the card slot (2), and the width of the clamping portion (12) is smaller than the width of the body (1).

5. The PE pipe extraction auxiliary tool according to claim 1, characterized in that: The body (1) is provided in a plurality, and the plurality of bodies (1) are at least positioned as a first body (1a) and a second body (1b); the first body (1a) and the second body (1b) are arranged back to back, and the clamping parts (12) of the two are connected to each other; the side wall of the first body (1a), the side wall of the second body (1b), and the side wall of the clamping part (12) are arranged to form a clamping groove (14).

6. The PE pipe extraction auxiliary tool according to claim 5, characterized in that: The card slots (2) are arranged in plurality, and the plurality of card slots (2) are at least defined as a first card slot (21) and a second card slot (22), the first card slot (21) being provided on the first body (1a), and the second card slot (22) being provided on the second body (1b); the width of the first card slot (21) is L1, and the width of the second card slot (22) is L2, and L1 and L2 satisfy the relationship: L1≥L2.

7. The PE pipe extraction auxiliary tool according to claim 1, characterized in that: At least part of the inner wall of the slot (2) is an arc inner wall (23), and the center of the arc inner wall (23) is O; the abutting pressing portion (11) protrudes from the center O along the length direction Y, and the length of the protruding portion is L3, 15mm≥L3≥10mm.

8. The PE pipe extraction auxiliary tool according to claim 1, characterized in that: Along the width direction X, the width of the abutting and pressing portion (11) is D1, 25 mm ≥ D1 ≥ 12 mm; along the length direction Y, the length of the abutting and pressing portion (11) is D2, 40 mm ≥ D2 ≥ 20 mm; along the width direction X, the width of the clamping portion (12) is D3, 18 mm ≥ D3 ≥ 3 mm; along the length direction Y, the length of the clamping portion (12) is D4, 50 mm ≥ D4 ≥ 15 mm.

9. The PE pipe extraction auxiliary tool according to claim 1, characterized in that: The thickness of the clamping portion (12) is H1, 10 mm ≥ H1 ≥ 2 mm; the thickness of the resisting and pressing portion (11) is H2, and the thickness of the main body (1) is H3, and H1, H2, and H3 satisfy the relationship: H1 = H2 = H3.

10. The PE pipe extraction auxiliary tool according to claim 5, characterized in that: Along the length direction Y, the length of the clamping groove (14) is D5, 50mm≥D4≥30mm.

Images