A quick-release pipe clamp that is easy to operate with one hand

Abstract

The first and second clamps are connected in a cross-rotating manner by a pin, and the upper end of the first clamp is provided with a pressing handle, and the end of the pressing handle is provided with a supporting portion, and the upper end of the second clamp is coaxially provided with a balancing seat. The pressing handle is provided with a rotating hole, and one side of the upper end of the balancing seat is provided with a rotating column for inserting the rotating hole and for pressing the pressing handle to press and swing limit. The upper end of the rotating column is also provided with a locking member, and the lower end of the locking member and the upper end of the pressing handle are provided with an elastic member, and the other side of the upper end of the balancing seat is further provided with a fulcrum for pressing the pressing handle downward as a support point, and the inner sides of the first clamp and the second clamp are provided with a rebound member that can make the two clamps bounce off each other. The present invention provides a balancing seat, so that the balancing seat and the first clamp and the second clamp are linked to each other, so that the pressing handle is always centered, which is convenient for single-handed pipe removal.

Description

Technical Field

[0001] The present invention relates to the technical field of quick-release pipe clamps, and in particular to a quick-release pipe clamp that is easy to operate with one hand. Background Art

[0002] Publication No. CN216399301U discloses a multifunctional pipe-cutting pliers, which provides two clamps and a pipe-cutting piece, wherein the pipe-cutting piece is fixedly mounted on one of the clamps, and can realize pipe cutting and pipe removal. Publication No. CN208930160U discloses a floor heating manifold disassembly tool, which also provides two clamps and a pry bar, wherein the pry bar is also rotatably mounted through a pillar to form a lever to tilt the principle for pipe cutting and pipe removal, and the pillar for fixing the pry bar is also fixedly mounted on one of the clamps. It can be seen from the above two public documents that the current pry bar (or pipe-cutting piece) of the existing crowbar-type pipe-cutting pliers is fixed on one of the clamps. The pry bar rotates with the rotation of the clamp it is fixed to, and is not centered. When operating the clamping and pipe removal actions, the pry bar rotates with the upper clamp (taking right-hand operation as an example). In this structure, when the pipe body is clamped by two clamps, four fingers control one clamp, the upper edge of the palm controls one clamp, and the right thumb is left to operate the pressing handle. However, because the pry bar does not reach the center position, but is close to the right side, the thumb is always in a bent posture to touch the pressing handle and cannot be extended. Therefore, it is always necessary to cooperate with both hands to complete the pipe removal relatively smoothly. Summary of the Invention

[0003] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a quick-release pipe wrench that is easy to operate with one hand, so as to solve the technical problems mentioned in the background art.

[0004] In order to solve the technical problem, the present invention adopts the following technical solution:

[0005] The cam is adapted to move the first and second jaws apart so as to allow the clamping member to move relative to the first jaw and the second jaw to move relative to the first jaw, thereby enabling the clamping member to move relative to the first jaw and the second jaw to move relative to the first jaw.

[0006] Specifically, the first clamp is provided with a first axial hole, a first limiting groove and a second limiting groove, wherein the first axial hole is located in the middle of the first limiting groove and the second limiting groove, and the second clamp is provided with a second axial hole, a third limiting groove and a fourth limiting groove, wherein the second axial hole is located in the middle of the third limiting groove and the fourth limiting groove, and the balance seat is provided with a left fixing hole and a right fixing hole, and the left fixing pin passes through the first limiting groove, the third limiting groove and the left fixing hole in sequence to form the left limiting balancing part of the quick-release pipe clamp, and the right fixing pin passes through the second limiting groove, the fourth limiting groove and the right fixing hole in sequence to form the right limiting balancing part of the quick-release pipe clamp, and the first axial hole and the second axial hole are both passed through by the pin shaft. When the first clamp and the second clamp perform a cross-clamping action with the pin shaft as the axis center, the centering of the pressing handle is achieved by relying on the balance limit of the left limiting balancing part and the right limiting balancing part.

[0007] Specifically, when the first clamp and the second clamp are stacked up and down, the maximum angle between the bottom of the first limit groove, the top of the third limit groove and the pin shaft is just equal to the angle traveled by the second clamp from opening to clamping, and the maximum angle between the bottom of the second limit groove, the top of the fourth limit groove and the pin shaft is just equal to the angle traveled by the first clamp from opening to clamping.

[0008] Specifically, the pressing handle includes a supporting part, a balancing part and a pressing part, wherein the heights of the supporting part, the balancing part and the pressing part increase sequentially, a first inclined surface is provided between the supporting part and the balancing part, and a second inclined surface is provided between the balancing part and the pressing part, wherein the rotating column is located on the balancing part.

[0009] Specifically, the balancing part is arranged horizontally, a balancing hole is provided on the balancing seat, the pin shaft extends out of the balancing hole and abuts the lower end of the balancing part, and limiting plates are provided on both sides of the lower end of the balancing part corresponding to the position of the top of the pin shaft. A limiting column is provided coaxially at the upper end of the fulcrum, wherein the fulcrum is located at the lower end of the limiting column, and a pressing limiting groove is provided on the balancing part for the limiting column to pass through and limit.

[0010] Specifically, the first clamp includes a first handle, a first adapter and a first clamping part, wherein the first axial hole, the first limiting groove and the second limiting groove are all located on the first adapter, and the second clamp includes a second handle, a second adapter and a second clamping part, wherein the second axial hole, the third limiting groove and the fourth limiting groove are all located on the second adapter, and a first limiting protrusion is provided on the side of the upper end of the first adapter close to the first clamping part, and the first limiting protrusion just limits the outer edge of the second adapter of the second clamp, and a second limiting protrusion is provided on the side of the lower end of the second adapter close to the second clamping part, and the second limiting protrusion just limits the outer edge of the first adapter of the first clamp.

[0011] Specifically, a first arc-shaped stop tooth is provided on the outer edge of the first adapter part, a first gear wheel is provided on the position corresponding to the first arc-shaped stop tooth on the second adapter part, a second arc-shaped stop tooth is provided on the outer edge of the second adapter part, and a second gear wheel is provided on the position corresponding to the second arc-shaped stop tooth on the first adapter part. The first gear wheel and the second gear wheel are both provided with a rotating shaft. When the first clamp and the second clamp are cross-clamped or loosened, the first arc-shaped stop tooth and the first gear wheel, as well as the second arc-shaped stop tooth and the second gear wheel can rotate with each other to produce a damping rotation gear to assist the clamping part in positioning and clamping the tube body.

[0012] Specifically, a first arc-shaped stop tooth is provided on the outer edge of the first adapter part, a first elastic protrusion is provided on the position corresponding to the first arc-shaped stop tooth on the second adapter part, a second arc-shaped stop tooth is provided on the outer edge of the second adapter part, and a second elastic protrusion is provided on the position corresponding to the second arc-shaped stop tooth on the first adapter part, wherein the first elastic protrusion and the second elastic protrusion can both rebound when subjected to the rotation action of their respective arc-shaped stop teeth, thereby generating a damping rotation gear when the first adapter part and the second adapter part rotate relative to each other, so as to assist the clamping part in positioning and clamping the tube body.

[0013] Specifically, the first clamp is provided with a first protrusion, the second clamp is provided with a second protrusion, the first protrusion and the second protrusion are arranged opposite to each other, and one end of the resilient member is sleeved on the first protrusion and the other end is sleeved on the second protrusion.

[0014] Specifically, the first limiting groove, the second limiting groove, the third limiting groove, and the fourth limiting groove are all arc-shaped grooves.

[0015] Specifically, the clamping portion includes at least two clamping openings, wherein the clamping opening closer to the outside has a larger diameter to adapt to tube bodies of different diameters. The supporting portion is provided with at least two or more supporting openings, wherein the diameters of the supporting openings at the same level correspond to the diameters of the corresponding clamping openings at the same level.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) The present invention sets a balancing seat, which is linked to the balancing seat through the left fixing pin, the right fixing pin and the first limiting slot, the second limiting slot, the third limiting slot and the fourth limiting slot, so that the pressing handle can always be kept in the center when the two clamps are clamped or released. When holding the pipe clamp, the thumb can be stretched out and pressed on the pressing handle, realizing the one-handed pipe removal action, which is very practical.

[0018] (2) On the basis of realizing one-handed pipe removal, the present invention also limits the smooth rotation of the individual adapter parts by setting the first limit convex point and the second limit convex point, and by setting the first arc-shaped stop teeth, the second arc-shaped stop teeth and the first gear wheel and the second gear wheel, the two adapter parts are provided with a gear damping feeling when rotating, which is convenient for determining the clamping angle by rotating the gear number. Similarly, the first elastic convex point and the second elastic convex point are also provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 : A three-dimensional view of the quick-release pipe clamp of the present invention in an assembled state (front view);

[0020] Figure 2 : A top view of the quick-release pipe clamp assembly state;

[0021] Figure 3 : is a schematic diagram of the exploded state of the quick-release pipe clamp of the present invention;

[0022] Figure 4 : Schematic diagram of the first and second jaws of the quick-release pipe clamp of the present invention in disassembled state;

[0023] Figure 5 : It is a radial cross-sectional view of the overall structure of the quick-release pipe clamp of the present invention;

[0024] Figure 6 : A side view of the pressing handle structure of the quick-release pipe clamp of the present invention;

[0025] Figure 7 : This is a side view of the balance seat structure of the quick-release pipe clamp of the present invention;

[0026] Figure 8 : A top view of the quick-release pipe clamp of the present invention in the assembled state (front view of the clamp);

[0027] Figure 9 : Bottom view of the quick-release pipe clamp of the present invention in assembled state (back side of the clamp);

[0028] Figure 10 :The three-dimensional assembly state of the quick-release pipe clamp of the present invention Figure 2 (back);

[0029] Figure 11 : An exploded view of the quick-release pipe wrench of the present invention (showing the second arc-shaped stop tooth and the first gear);

[0030] Figure 12 : An exploded view of the quick-release pipe wrench of the present invention (showing the first arc-shaped gear and the second gear);

[0031] Figure 13 : This is a cross-sectional view of the first gear rotating wheel of the quick-release pipe wrench of the present invention;

[0032] Figure 14 : A cross-sectional view of the first elastic protrusion and the second elastic protrusion of the quick-release pipe clamp according to embodiment 2 of the present invention;

[0033] The quick-release pipe clamp of the present invention

[0034] Figure 15 : Schematic diagram of multiple clamping openings and multiple supporting openings of a quick-release pipe clamp according to embodiment 3 of the present invention;

[0035] Figure 16 : Schematic diagram of multiple clamping openings and multiple supporting openings of the quick-release pipe clamp of embodiment 3 of the present invention Figure 2 ;

[0036] Figure 17 : This is a schematic diagram of the centering balance principle of the balancing seat of the present invention when the two clamps are clamped and rotated;

[0037] In the figure: first clamp 1, second clamp 2, pressing handle 3, pin 4, clamping portion 101, supporting portion 102, balancing seat 5, rotating hole 31, rotating column 51, locking member 52, elastic member 53, fulcrum 54, rebound member 6, first axial hole 11, first limiting slot 12, second limiting slot 13, second axial hole 21, third limiting slot 22, fourth limiting slot 23, left fixing hole 55, right fixing hole 56, left fixing pin 57, right fixing pin 58, supporting portion 32, balancing portion 33, pressing portion 34, first inclined surface 35, second inclined surface 36, balancing hole 51 0, limiting plate 38, limiting column 59, pressing limiting groove 39, first handle 110, first adapter part 120, first clamping part 130, second handle 210, second adapter part 220, second clamping part 230, first limiting protrusion 121, second limiting protrusion 221, first arc-shaped stop tooth 122, first gear wheel 222, second arc-shaped stop tooth 223, second gear wheel 123, first elastic protrusion 224, second elastic protrusion 124, first boss 140, second boss 240, clamping port 101a, supporting port 102b. DETAILED DESCRIPTION

[0038] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0039] refer to Figures 1 to 17 :

[0040] Example 1: Reference Figure 1-5The present invention discloses a quick-release pipe clamp that is easy to operate with one hand, comprising a first clamp 1, a second clamp 2, and a pressing handle 3. The first clamp 1 and the second clamp 2 are cross-rotatably connected by a pin 4. The ends of the first clamp 1 and the second clamp 2 are both provided with a clamping portion 101. The clamping portion 101 is generally designed to be an arc-shaped depression, which is convenient for clamping a pipe body (water pipe, wire pipe, etc.). The upper end of the second clamp 2 is provided with a pressing handle 3. The end of the pressing handle 3 is provided with a supporting portion 102. The supporting portion 102 opens in the same direction as the clamping portion 101, which is convenient for clamping the pipe body when the clamping portion 101 clamps the pipe body. The supporting portion 102 is aligned with the tube adapter to pry and remove the tube body. The upper end of the second clamp 2 is coaxially provided with a balancing seat 5 and the pin 4. The pressing handle 3 is provided with a rotating hole 31. One side of the upper end of the balancing seat 5 is provided with a rotating column 51 for inserting the rotating hole 31 and for limiting the upward and downward swinging of the pressing handle 3 when pressed. The upper end of the rotating column 51 is also provided with a locking member 52. The rotating column 51 can be a screw, and the locking member 52 can be a nut. The lower end of the locking member 52 and the upper end of the pressing handle 3 are provided with an elastic member 53. The other side of the upper end of the balancing seat 5 is also provided with a locking member for pressing the pressing handle 3 downward. The fulcrum 54 is pressed as a support point. When the hand presses the end of the pressing handle 3 downward, the pressing handle 3 forms a lever effect with the fulcrum 54 as the support point, causing the supporting portion 102 of the pressing handle 3 to tilt upward, so that the water pipe adapter can be clamped and tilted, and then the water pipe can be removed. The inner sides of the first clamp 1 and the second clamp 2 are provided with a rebound member 6 that can make the two clamps bounce off each other. Different from the pipe-removing pliers in the same field in the prior art that can never successfully complete the pipe removal with one hand, the present invention also provides a balancing seat 5 at the upper end of the second clamp 2, and the balancing seat 5 does not contact any of the first clamp 1 and the second clamp 2. Which one is fixed? Here, the installation method of the balance seat 5 can be the structural method described below, or it can be directly with the pin shaft 4 as the axis, so that it is directly free from the first clamp 1 and the second clamp 2, and is not affected by the two clamps. In this way, the pressing handle 3 will neither deviate to the left nor to the right, and is always in the center position. When pressing with one hand, the thumb can be stretched out and the pressing handle 3 can be pressed directly, which is convenient for exerting force and easy to achieve one-handed operation. Compared with the pipe-breaking pliers in the prior art, the pressing handle 3 lacks the balance seat 5. The center cannot be reached, so that the thumb cannot be stretched, that is, it is not convenient for pressing and exerting force.

[0041] refer to Figure 4 、 Figure 8 、 Figure 9 、 Figure 17(where A is the horizontal line of the balance seat 5) As a further refinement of the above embodiment, although the above embodiment can be centered by the thumb when operated with one hand, it is still not so convenient to operate. This embodiment provides an implementation method that can automatically center the pressing handle 3. Specifically, the first clamp 1 is provided with a first axial hole 11, a first limiting groove 12 and a second limiting groove 13, wherein the first axial hole 11 is located in the middle of the first limiting groove 12 and the second limiting groove 13, and the second clamp 2 is provided with a second axial hole 21, a third limiting groove 22 and a fourth limiting groove 23, wherein the second axial hole 21 is located in the middle of the third limiting groove 22 and the fourth limiting groove 23, and the balance seat 3 ... A left fixing hole 55 and a right fixing hole 56 are provided on the balance seat 5, and the left fixing pin 57 passes through the first limiting groove 12, the third limiting groove 22 and the left fixing hole 55 in sequence to form the left limiting balance part 33 of the quick-release pipe clamp, and the right fixing pin 58 passes through the second limiting groove 13, the fourth limiting groove 23 and the right fixing hole 56 in sequence to form the right limiting balance part 33 of the quick-release pipe clamp. The first axial hole 11 and the second axial hole 21 are both passed through by the pin 4. When the first clamp 1 and the second clamp 2 perform a cross-clamping action with the pin 4 as the axis, the balancing limit of the left limiting balance part 33 and the right limiting balance part 33 is used to achieve the centering of the pressing handle 3. Specifically, in combination with the accompanying drawings, taking the back / bottom drawings as an example, when the present When the pipe clamp is in the loose state, due to the support of the rebound member 6, the first jaw 1 and the second jaw 2 are always in the open state, the left fixing pin 57 is just located at the bottom position of the first limiting groove 12 and the top position of the third limiting groove 22, and the right fixing pin 58 is located at the top position of the second limiting groove 13 and the bottom position of the fourth limiting groove 23. When the pipe clamp is rotated, the first jaw 1 and the second jaw 2 rotate crosswise with each other, which is divided into three stages. The first stage: the first jaw 1 and the second jaw 2 clamp inwardly. When the area where the first limiting groove 12 overlaps with the third limiting groove 22 and the area where the second limiting groove 13 overlaps with the fourth limiting groove 23 is much larger than the diameter of the two fixing pins, At this time, the left fixing pin 57 and the right fixing pin 58 are not touched by any limiting grooves, so the balancing seat 5 is in an inactive state. At this time, the pressing handle 3 always remains centered. Of course, it can also be said that as long as the groove diameters of the first limiting groove 12, the second limiting groove 13, the third limiting groove 22 and the fourth limiting groove 23 are long enough, the balancing seat 5 can always remain motionless, because no matter how the first limiting groove 12 and the second limiting groove 13 overlap, neither the bottom nor the top of the groove will touch the left fixing pin 57, and similarly, neither will touch the right side. Or it can be understood that if the clamping portion 101 has clamped the water pipe in this state, the pressing portion 34 is completely centered.

[0042] Second stage: reference Figure 17As mentioned above, as long as the diameter of the limit groove is long enough, the second stage will not be involved. However, what is explained here is that when the diameters of the two limit grooves of some limit grooves are added together to form a stroke for the clamping, or in other words, in some embodiments where the diameters of the limit grooves are relatively short at the beginning of the original design, the second stage needs to be considered. Then, as mentioned above, when the first limit groove 12 and the third limit groove 22 and the second limit groove 13 and the fourth limit groove 23 overlap, the left fixing pin 57 and the right fixing pin 58 do not have any groove bottom or groove top to touch them, and the pressing handle 3 remains centered. However, when the first clamp 1 and the second clamp 2 continue to clamp inward, at this time, contrary to the above, the left fixing pin 57 first moves from the groove top position of the third limit groove 22 to the groove bottom position. The left fixing pin 57 is positioned (in fact, it is not the left fixing pin 57 that moves by itself, but the rotation of the third limiting groove 22), and at the same time, the right fixing pin 58 on the right side moves from the bottom position of the fourth limiting groove 23 to the top position (at this time, for this embodiment of the limiting groove diameter, in fact, the overlapping area of ​​the first limiting groove 12 and the third limiting groove 22 and the second limiting groove 13 and the fourth limiting groove 23 is exactly equal to the diameter of the two fixing pins). Then, if the target water pipe is clamped by the clamping part 101 at this time, the two fixing pins still do not move, because only the corresponding limiting grooves are rotating. At this time, the balancing seat 5 is still not moving, and the pressing handle 3 is still kept in the center (generally speaking, most pipe clamps have already clamped the water pipe in the second stage, and most of them will not be used in the third stage).

[0043] The third stage: when the first clamp 1 and the second clamp 2 continue to clamp inward after the second stage, the left fixing pin 57 is already at the bottom of the third limiting groove 22. When it continues to act, it will carry the left fixing pin 57 toward the top of the first limiting groove 12. When the left fixing pin 57 completely reaches the top of the first limiting groove 12, the clamping action can no longer be continued. Similarly, the right fixing pin 58 on the right side is already at the top of the fourth limiting groove 23. When it continues to clamp, it will carry the fixing pin from the top of the second limiting groove 13 to the bottom of the groove, thereby completing the entire stroke on the right side. At this time, the clamping action can no longer be continued, that is, the clamping part 10 at the upper end 1 are actually clamped to each other. When designing this clamp, the manufacturer can calculate the groove diameter of each limit groove according to the limit groove stroke so that it can be clamped and reach the bottom or top of all limit grooves to reduce errors. In the above-mentioned third stage, because the left fixing pin 57 is moved from the bottom of the first limit groove 12 to the bottom of the groove, and the right fixing pin 58 on the right side is moved from the top position of the second limit groove 13 to the bottom position, it is also moved by the same size of a limit groove. The first limit groove 12 and the second limit groove 13 are symmetrical and have the same groove diameter. Therefore, at this stage, the balance seat 5 will shake slightly during the clamping process, and the pressing handle 3 will deviate slightly from the center.

[0044] Specifically, when the first clamp 1 and the second clamp 2 are stacked up and down, the maximum angle between the bottom of the first limit groove 12, the top of the third limit groove 22 and the pin shaft 4 is just equal to the angle traveled by the second clamp 2 from opening to clamping, and the maximum angle between the bottom of the second limit groove 13, the top of the fourth limit groove 23 and the pin shaft 4 is just equal to the angle traveled by the first clamp 1 from opening to clamping.

[0045] refer to Figure 6 Specifically, the pressing handle 3 includes a supporting portion 102, a balancing portion 33 and a pressing portion 34, wherein the heights of the supporting portion 102, the balancing portion 33 and the pressing portion 34 increase sequentially, and a first inclined surface 35 is provided between the supporting portion 102 and the balancing portion 33, and a second inclined surface 36 is provided between the balancing portion 33 and the pressing portion 34, wherein the rotating column 51 is located on the balancing portion 33, such a configuration can facilitate later assembly, and at the same time, the first inclined surface 35 can just be located in front of the balancing seat 5, and can avoid the raised edge of the balancing seat 5, while the second inclined surface 36 is conducive to raising the vertical height between the pressing portion 34 and the supporting portion 102, thereby facilitating prying using the principle of leverage.

[0046] refer to Figure 3In a preferred embodiment, because the balancing seat 5 is set straight, in order to enable the pressing handle 3 to swing up and down more balanced, the balancing part 33 is set horizontally, and a balancing hole 510 is provided on the balancing seat 5. The pin 4 extends out of the balancing hole 510 and abuts against the lower end of the balancing part 33. The two sides of the lower end of the balancing part 33 are provided with a position corresponding to the top of the pin 4. A limiting column 59 is provided at the upper end of the fulcrum 54 coaxially, wherein the fulcrum 54 is located at the limit column 59. At the lower end, the balancing part 33 is provided with a pressing limit groove 39 for the limit column 59 to pass through and limit. With this arrangement, one pressing handle 3 has two column limits, namely the rotating column 51 and the limit column 59, to ensure that the pressing handle 3 will not shake left and right. At the same time, the limit piece 38 is just embedded in the top position of the pin shaft 4 when the pressing handle 3 is pressed below the reset line. At this time, three points are formed to limit the downward posture of the pressing handle 3, further ensuring that the pressing handle 3 will not shake when pressed down and raised.

[0047] refer to Figure 4 、 Figure 9 、 Figure 11-14 The first clamp 1 includes a first handle 110, a first adapter 120 and a first clamping portion 130, wherein the first axial hole 11, the first limiting groove 12 and the second limiting groove 13 are all located on the first adapter 120, and the second clamp 2 includes a second handle 210, a second adapter 220 and a second clamping portion 230, wherein the second axial hole 21, the third limiting groove 22 and the fourth limiting groove 23 are all located on the second adapter 220, and the upper end of the first adapter 120 is provided with a side close to the first clamping portion 130. The first limiting protrusion 121, the first limiting protrusion 121 just limits the outer edge of the second adapter part 220 of the second clamp 2, and the lower end of the second adapter part 220 is provided with a second limiting protrusion 221 on the side close to the second clamping part 230, and the second limiting protrusion 221 just limits the outer edge of the first adapter part 120 of the first clamp 1. With such an arrangement, when the two adapter parts rotate around each other, they can be limited by the limiting protrusions at the outer edge positions of their respective parts, thereby further ensuring that the rotation of the two clamps can be synchronized.

[0048] refer to Figure 4 、 Figure 9 、 Figure 11-14,Example 2: Different from the above-mentioned embodiment, the first limiting protrusion 121 and the second limiting protrusion 221 only limit the rotation of their respective adapter parts, so that the two clamps keep rotating synchronously. However, in some real application scenarios, for clamping pipes such as water pipes, especially for clamping pipes of the same diameter, such as four-point pipes, six-point pipes or eight-point pipes, for most people, no matter what the diameter of the water pipe is, they first use the maximum force to clamp the clamping part 101 at once, and do not consider how much rotation or force is needed to make the two clamps reach the position that can just clamp the water pipes of these diameters. The impact of this technical problem, one First, each time the water pipe is clamped with great force, it is easy to damage the pipe body. Second, it is easy to waste manpower and is not conducive to efficient production. Therefore, a solution is proposed here, that is, a first arc-shaped retaining tooth 122 is provided on the outer edge of the first adapter part 120, a first gear rotating wheel 222 is provided on the second adapter part 220 at a position corresponding to the first arc-shaped retaining tooth 122, a second arc-shaped retaining tooth 223 is provided on the outer edge of the second adapter part 220, and a second gear rotating wheel 123 is provided on the first adapter part 120 at a position corresponding to the second arc-shaped retaining tooth 223. Both the first gear rotating wheel 222 and the second gear rotating wheel 123 are provided with a rotating shaft to rotate. When the first clamp is engaged, When the clamp 1 and the second clamp 2 are cross-clamped or loosened, the first arc-shaped stop tooth 122 and the first gear wheel 222, as well as the second arc-shaped stop tooth 223 and the second gear wheel 123 can rotate with each other to produce a damping rotation gear. Here, the first gear wheel 222 and the second gear wheel 123 are both wheel bodies that can rotate around their own central rotation axis, and the wheel body is just the right size to match the first arc-shaped stop tooth and the second arc-shaped stop tooth. The first arc-shaped stop tooth and the second arc-shaped stop tooth are distributed in an arc array along the outer edge of their respective transition parts (circumferential array distribution), so when the clamp rotates, the upper teeth can be connected with the corresponding gear wheels in turn. The gear wheel can be rotated, so it will also make a "clicking" sound similar to the gear. The user can use this to judge what position the two jaws of the pipe clamp have been rotated to, and can also judge which diameter of water pipe is suitable for clamping by how many sounds or gears the gear has been rotated. For example, a certain arc-shaped gear has 9 gears. When it is rotated to three teeth (three sounds), it can clamp an 8-point pipe. When it is rotated to six teeth, it can clamp a 6-point pipe. When the sound is nine, it is used to clamp a 4-point pipe. Here is just one of the structural design cases, which does not mean that the patent of the present invention is limited to this case. In this way, the auxiliary clamping part 101 is used to position and clamp the pipe body.

[0049] refer to Figure 4 、 Figure 9 、 Figure 11-14, Example 3: The same principle as Example 2, this embodiment provides another implementation scheme, that is, a first arc-shaped stop tooth 122 is provided on the outer edge of the first adapter part 120, a first elastic protrusion 224 is provided on the second adapter part 220 at a position corresponding to the first arc-shaped stop tooth 122, and a second arc-shaped stop tooth 223 is provided on the outer edge of the second adapter part 220, and a second elastic protrusion 124 is provided on the first adapter part 120 at a position corresponding to the second arc-shaped stop tooth 223, wherein the first elastic protrusion 224 and the second elastic protrusion 124 can both rebound when subjected to the rotation action of their respective arc-shaped stop teeth, so that the first adapter part 120 and the second adapter part 220 produce a damping rotation gear when they rotate relative to each other, so as to assist the clamping part 101 in positioning and clamping the tube body. During implementation, a protrusion can be optionally provided on the first adapter part 120 and the second adapter part 220, and a spring glass ball hole can be provided on the protrusion, and then the spring glass ball is placed in the hole and aligned with the outer edges of the respective adapter parts for assembly.

[0050] refer to Figure 4 、 Figure 9 、 Figure 11-14 Specifically, a first boss 140 is provided on the first clamp 1, and a second boss 240 is provided on the second clamp 2. The first boss 140 and the second boss 240 are arranged opposite to each other, and one end of the rebound member 6 is sleeved on the first boss 140 and the other end is sleeved on the second boss 240.

[0051] refer to Figure 4 、 Figure 9 、 Figure 11-14 As other preferred embodiments, the first limiting groove 12, the second limiting groove 13, the third limiting groove 22, and the fourth limiting groove 23 are all arc-shaped grooves. Compared with straight grooves, the arc-shaped grooves can be designed according to the angle of rotation of the clamp and the arc designed by the position of the limiting groove and the radius of the pin shaft 4. The arc-shaped grooves can help save the rotation stroke and reduce the shaking caused by the straight grooves being forced to adapt to the arc-shaped rotation of the left fixing pin 57 and the right fixing pin 58.

[0052] refer to Figure 15-16, Example 4: Specifically, the function of a pipe clamp is definitely to adapt to more pipes with the best diameters. A pipe clamp that is only suitable for one pipe diameter is not easy to sell. Users have to use a special clamp for a specific purpose, which is very inconvenient. Here, a solution is provided, that is, the clamping portion 101 includes at least two clamping openings 101a, wherein the clamping opening 101a closer to the outside has a larger diameter to adapt to pipes of different diameters. The supporting portion 102 is provided with at least two or more supporting openings 102b, wherein the diameters of the supporting openings 102b at the same level correspond to the diameters of the corresponding clamping openings 101a at the same level. Here, the corresponding diameters can be understood as the same diameter in some embodiments. In other individual embodiments, it can also be understood as the curvature of the groove surface of the clamping parts of the two being similar, so that both can adapt to pipes of the same diameter. In addition, for other individual non-circular pipes (such as rounded rectangular pipes), the diameters of the two are different.

[0053] The above embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A quick-release pipe wrench convenient for one-hand operation, comprising a first jaw, a second jaw, and a pressing handle, wherein the first jaw and the second jaw are connected in a cross-rotating manner via a pin, the ends of the first jaw and the second jaw are each provided with a clamping portion, the upper end of the second jaw is provided with a pressing handle, and the end of the pressing handle is provided with a supporting portion, characterized in that: The upper end of the second clamp is provided with a balancing seat coaxially with the pin shaft, the pressing handle is provided with a rotating hole, one side of the upper end of the balancing seat is provided with a rotating column for the rotating hole to be inserted into and for the pressing handle to press and swing to limit the position, the upper end of the rotating column is also provided with a locking piece, the lower end of the locking piece and the upper end of the pressing handle are provided with an elastic piece, the other side of the upper end of the balancing seat is also provided with a fulcrum for the pressing handle to press downward as a support point, the inner sides of the first clamp and the second clamp are provided with a rebound piece that can make the two clamps bounce away from each other; The first clamp is provided with a first axial hole, a first limiting groove and a second limiting groove, wherein the first axial hole is located in the middle of the first limiting groove and the second limiting groove, and the second clamp is provided with a second axial hole, a third limiting groove and a fourth limiting groove, wherein the second axial hole is located in the middle of the third limiting groove and the fourth limiting groove, and the balance seat is provided with a left fixing hole and a right fixing hole, and the left fixing pin passes through the first limiting groove, the third limiting groove and the left fixing hole in sequence to form the left limiting balancing part of the quick-release pipe clamp, and the right fixing pin passes through the second limiting groove, the fourth limiting groove and the right fixing hole in sequence to form the right limiting balancing part of the quick-release pipe clamp, and the first axial hole and the second axial hole are both passed through by the pin shaft. When the first clamp and the second clamp perform a cross-clamping action with the pin shaft as the axis center, the centering of the pressing handle is achieved by relying on the balance limit of the left limiting balancing part and the right limiting balancing part.

2. A quick-release pipe wrench that is easy to operate with one hand according to claim 1, characterized in that: When the first clamp and the second clamp are stacked up and down, the maximum angle between the bottom of the first limit groove, the top of the third limit groove and the pin shaft is just equal to the angle traveled by the second clamp from opening to clamping, and the maximum angle between the bottom of the second limit groove, the top of the fourth limit groove and the pin shaft is just equal to the angle traveled by the first clamp from opening to clamping.

3. A quick-release pipe wrench that is easy to operate with one hand according to any one of claims 1-2, characterized in that: The pressing handle includes a supporting part, a balancing part and a pressing part, wherein the heights of the supporting part, the balancing part and the pressing part increase sequentially, a first inclined surface is provided between the supporting part and the balancing part, and a second inclined surface is provided between the balancing part and the pressing part, wherein the rotating column is located on the balancing part.

4. A quick-release pipe wrench that is easy to operate with one hand according to claim 3, characterized in that: The balancing part is arranged horizontally, and a balancing hole is provided on the balancing seat. The pin shaft extends out of the balancing hole and abuts the lower end of the balancing part. Limiting plates are provided on both sides of the lower end of the balancing part corresponding to the position of the top of the pin shaft. A limiting column is provided coaxially at the upper end of the fulcrum, wherein the fulcrum is located at the lower end of the limiting column, and a pressing limiting groove is provided on the balancing part for the limiting column to pass through and limit.

5. The quick-release pipe wrench that is easy to operate with one hand according to claim 1, characterized in that: The first clamp includes a first handle, a first adapter and a first clamping part, wherein the first axial hole, the first limiting groove and the second limiting groove are all located on the first adapter; the second clamp includes a second handle, a second adapter and a second clamping part, wherein the second axial hole, the third limiting groove and the fourth limiting groove are all located on the second adapter; a first limiting protrusion is provided on the side of the upper end of the first adapter close to the first clamping part, and the first limiting protrusion just limits the outer edge of the second adapter of the second clamp; a second limiting protrusion is provided on the side of the lower end of the second adapter close to the second clamping part, and the second limiting protrusion just limits the outer edge of the first adapter of the first clamp.

6. The quick-release pipe wrench that is easy to operate with one hand according to claim 5, characterized in that: The outer edge of the first adapter part is provided with a first arc-shaped stop tooth, and the position of the second adapter part corresponding to the first arc-shaped stop tooth is provided with a first gear wheel. The outer edge of the second adapter part is provided with a second arc-shaped stop tooth, and the position of the first adapter part corresponding to the second arc-shaped stop tooth is provided with a second gear wheel. The first gear wheel and the second gear wheel are both provided with a rotating shaft for rotation. When the first clamp and the second clamp are cross-clamped or loosened, the first arc-shaped stop tooth and the first gear wheel, as well as the second arc-shaped stop tooth and the second gear wheel can rotate with each other to produce a damping rotation gear to assist the clamping part in positioning and clamping the tube body.

7. The quick-release pipe wrench that is easy to operate with one hand according to claim 5, characterized in that: A first arc-shaped stop tooth is provided on the outer edge of the first adapter part, a first elastic protrusion is provided on the position corresponding to the first arc-shaped stop tooth on the second adapter part, a second arc-shaped stop tooth is provided on the outer edge of the second adapter part, and a second elastic protrusion is provided on the position corresponding to the second arc-shaped stop tooth on the first adapter part, wherein the first elastic protrusion and the second elastic protrusion can both rebound when subjected to the rotation action of their respective arc-shaped stop teeth, thereby generating a damping rotation gear when the first adapter part and the second adapter part rotate relative to each other, so as to assist the clamping part in positioning and clamping the tube body.

8. A quick-release pipe wrench that is easy to operate with one hand according to any one of claims 5 to 7, characterized in that: The first clamp is provided with a first protrusion, the second clamp is provided with a second protrusion, the first protrusion and the second protrusion are arranged opposite to each other, and one end of the resilient member is sleeved on the first protrusion and the other end is sleeved on the second protrusion.

9. The quick-release pipe wrench that is easy to operate with one hand according to claim 8, characterized in that: The clamping portion includes at least two clamping openings, wherein the clamping opening closer to the outside has a larger diameter to adapt to tube bodies of different diameters. The supporting portion is provided with at least two or more supporting openings, wherein the diameters of the supporting openings at the same level correspond to the diameters of the corresponding clamping openings at the same level.

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