Water pipe pliers
The water pipe pliers design with a button base and engaging tooth member in a guide groove addresses inefficiency and safety issues by enabling stable and efficient adjustment of clamping size, preventing tooth separation under tensile forces.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2026-03-13
AI Technical Summary
Conventional water pipe pliers are inefficient and unsafe due to the need for axial pressing to adjust clamping size, potential separation of engaging teeth during use, and insufficient locking and positioning, posing a hazard when subjected to tensile forces.
A water pipe pliers design featuring a button with a button base and engaging tooth member, guided by a guide groove with a tooth row, and an elastic member to ensure stable engagement and adjustment of clamping size through axial and radial movements, preventing separation under tensile forces.
Ensures stable operation, efficient adjustment of gripping jaws, and high operational safety by maintaining structural integrity and preventing tooth separation during use.
Smart Images
Figure 2026046283000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a pliers tool, and particularly to a water pipe pliers.
Background Art
[0002] A water pipe pliers usually includes a first pliers body and a second pliers body pivotally attached to each other. A slide groove having a tooth row is formed in the first pliers body. A button penetrates through the shaft support hole of the second pliers body and the slide groove of the first pliers body, whereby the second pliers body can slide and swing with respect to the first pliers body. In the normal state, the first tooth portion of the tooth row and the second tooth portion of the button mesh with each other, and by pressing the button, the first tooth portion and the second tooth portion are disengaged. Then, the button and the first pliers body slide with respect to the second pliers body, so that the relative distance between the clamping portion of the first pliers body and the second pliers body is adjusted. Furthermore, the clamping mouth size of the water pipe pliers is adjusted so as to be applicable to water pipes of various sizes and structures.
[0003] However, since the second tooth portion is integrally formed on the button of the conventional water pipe pliers, in actual work, when it is desired to reduce the clamping mouth size of the water pipe pliers to clamp the working water pipe, it is necessary to axially press the button to separate the first tooth portion and the second tooth portion. In this way, the button and the first tooth portion can slide with respect to the second pliers body to achieve the purpose of adjustment. The conventional water pipe pliers are known to be not very convenient and inefficient when performing installation work, and have the drawback that they need to be improved urgently.
[0004] Furthermore, for example, the pivot pin (4) of the water pipe pliers disclosed in USP No. 8695464 includes a spring (13) and a ball (15), but due to the limitations imposed by the fitting gap of the guiding portions (20) of the pliers body in which the pivot pin is located, although the engaging teeth of the pivot pin can fully engage with the teeth of the guide groove, the locking and positioning effect is insufficient. The diameter of the guiding portions (20) is much larger than that of the pivot pin (4). That is, except when the mating gap is large, the engaging teeth of the button can fully engage with the teeth of the guide groove, but if the mating gap is too large, the first and second pliers bodies will slide against each other during use, which is dangerous. Furthermore, if the pliers body, which is equipped with a button, is subjected to an undesirable downward tensile force while operating the water pipe pliers, the engaging teeth of the button may separate from the teeth of the guide groove, creating a potential hazard.
[0005] Therefore, in order to solve the above problems, a water pipe pliers with novelty and inventiveness is needed. [Overview of the Initiative] [Problems that the invention aims to solve]
[0006] The main objective of the present invention is to provide a water pipe pliers that can stably maintain its structural state during use, efficiently change the size of the gripping jaws during adjustment, and offer extremely high operational safety and efficiency. [Means for solving the problem]
[0007] To achieve the above objectives, the present invention provides: A first pliers body comprising a first handle portion, a first clamping portion, and a body portion connected between the first handle portion and the first clamping portion, wherein a guide groove is provided in the body portion, and a row of teeth is provided on one side of the guide groove, The second pliers body includes a second handle, a second gripping section, and a axial support hole, The present invention provides a water pipe pliers comprising a button that penetrates the guide groove and the shaft support hole, and includes a button base, an engaging tooth member, and an elastic member provided between the button base and the engaging tooth member, wherein the button base moves relative to the guide groove along the axial direction of the button so as not to engage with the teeth row, and the engaging tooth member moves relative to the button base along the radial direction of the button so as to be releasably engaged with the teeth row. [Brief explanation of the drawing]
[0008] [Figure 1] This is a perspective view of one embodiment of the present invention. [Figure 2] This is an exploded view of one embodiment of the present invention. [Figure 3] This is another exploded view of one embodiment of the present invention. [Figure 4] This is an exploded view of a button according to one embodiment of the present invention. [Figure 5] This is a partial cross-sectional view of the case where the parts interlock in a free state, according to one embodiment of the present invention. [Figure 6] This is a partial cross-sectional view of the two teeth separated by pressing a button in one embodiment of the present invention. [Figure 7] This is a further partial cross-sectional view of one embodiment of the present invention. [Figure 8] This is a schematic diagram illustrating the operation of one embodiment of the present invention. [Figure 9] This is a schematic diagram illustrating the operation of one embodiment of the present invention. [Figure 10] This is a schematic diagram of another embodiment of the present invention. [Figure 11] This is a schematic diagram of another embodiment of the present invention. [Figure 12] This is a schematic diagram of another embodiment of the present invention. [Modes for carrying out the invention]
[0009] Hereinafter, embodiments of the present invention will be described, but the protection scope of the present invention is not limited to these embodiments.
[0010] Referring to FIGS. 1 to 9 showing an embodiment of the present invention, an explanation will be given. The water pipe pliers 1 according to the present invention includes a first pliers body 10, a second pliers body 20, and a button 30.
[0011] The first pliers body 10 includes a first handle portion 11, a first clamping portion 12, and a body portion 13 connected between the first handle portion 11 and the first clamping portion 12. A guide groove 131 is provided in the body portion 13, and a tooth row 132 is provided on one side of the guide groove 13 in the present invention. The second pliers body 20 includes a second handle portion 21, a second clamping portion 22, and a pivot hole 23. In this embodiment, the first handle portion 11 and the first clamping portion 12 are integrally formed or fixedly connected. The second handle portion 21 and the second clamping portion 22 are integrally formed or fixedly connected, but may also be configured as a combination of a plurality of members. The button 30 is inserted through the guide groove 131 and the pivot hole 23. The button 30 includes a button base 31, an engaging tooth member 32, and an elastic member 33 provided between the button base 31 and the engaging tooth member 32. The button base 31 moves along the axial direction of the button 30 with respect to the guide groove 131, and the engaging tooth member 32 may be prevented from meshing with the tooth row 132. The engaging tooth member 32 moves along the radial direction of the button 30 with respect to the button base 31, and may releasably mesh with the tooth row 132. Thereby, during use, the engaging tooth member 32 and the tooth row 132 can mesh completely and stably. During operation, even if the second pliers body 20 is subjected to an undesirable downward tensile force, the engaging tooth member 32 and the tooth row 132 will not separate. During adjustment, no matter whether the button 30 is at the front, center, rear or any position of the guide groove 131, the clamping mouth size between the first clamping portion 12 and the second clamping portion 22 can be changed just by gently pressing. Therefore, the operation safety and efficiency are extremely high.
[0012] The button base 31 and the engaging tooth member 32 are fitted to each other in a concave-convex shape. The engaging tooth member 32 may be fitted in the button base 31, or the button base 31 may be fitted in the engaging tooth member 32. In this embodiment, the button base 31 includes a receiving groove 311 for receiving the engaging tooth member 32. The elastic member 33 elastically abuts between the groove wall of the receiving groove 311 and the engaging tooth member 32. In the combined configuration, it is advantageous for manufacturing the button 30 having a complex structure. Also, when the engaging tooth member 32 is worn, it can be replaced. The groove wall of the receiving groove 311 includes a concave hole 312. One end of the elastic member 33 is inserted into the concave hole 312, whereby the elastic member 33 is stably held and positioned, and the engaging tooth member 32 and the tooth row 132 mesh more stably and reliably.
[0013] Furthermore, the button base 31 further includes a button body 313 inserted through the guide groove 131 and the shaft support hole 23, and a pressing plate 314 attached to one end of the button body 313. Specifically, the button body 313 includes a slot 315. The pressing plate 314 includes a pin 316 inserted into the slot 315. In this way, manufacturing, detachment, and maintenance are facilitated, and replacement is also possible. The radial size D1 of the pressing plate 314 is larger than the radial size D2 of the shaft support hole 23, and the radial size D3 of the other end of the button body 313 is larger than the groove width W of the guide groove 131. As a result, the button 30 is restricted to a predetermined range of movement and cannot be removed from the water pipe pliers 1. Preferably, the water pipe pliers 1 further includes a returnable elastic sheet 40 provided on the second pliers body 20. One end face of the button body 313 includes a groove 317. One end of the retractable elastic sheet 40 elastically contacts the recessed bottom surface of the groove 317. This allows the button 30 to be constantly pressed to maintain the engagement of the engaging tooth member 32 with the tooth row 132.
[0014] In this embodiment, the button 30 is immobile relative to the guide groove 131. More specifically, the button body 313 makes stable surface contact with the side of the guide groove 131 that is relative to the tooth row 132. On the other hand, the engaging tooth member 32 is fitted onto the button body 313 and engages with the tooth row 132. Therefore, both opposing sides of the button 30 stably contact the opposing sides of the guide groove 131. As a result, the button 30 does not rotate relative to the guide groove 131, thereby improving operational stability and ensuring the precision of the gripping opening of the water pipe pliers 1. Furthermore, it prevents the engaging tooth member 32 from separating from the tooth row 132 when force is applied during operation.
[0015] The engaging tooth member 32 includes at least one (preferably more) second tooth portion 321 that meshes with the tooth row 132, and an inclined surface 322 that faces the tooth row 132. More specifically, the second tooth portion 321 has an inclined surface facing the tooth row, and the tip of the inclined surface 322 is higher than the tip of at least one of the second tooth portions 321. The inclined surface is advantageous in that when the button 30 is pressed, movement is smooth and the meshing state between the engaging tooth member 32 and the tooth row 132 is efficiently and smoothly released. Preferably, the first teeth 133 of the tooth row 132 and the second teeth 321 of the engaging tooth member 32 have a serrated ratchet shape that is inclined toward the first clamping portion 12. As a result, when a force acting in the longitudinal direction of the guide groove 131 is applied to the button 30, the button 30 slides along the guide groove 131, thereby changing the size of the clamping opening between the first clamping portion 12 and the second clamping portion 22. Depending on the ratchet's structure, it is also possible to prevent the engaging tooth member 32 from disengaging from the tooth row 132 in the opposite direction when force is applied during operation.
[0016] Specifically, in actual operation, pressing the button 30 prevents the engaging tooth member 32 from engaging with the tooth row 132, and moves the first pliers body 10 and the second pliers body 20 relative to each other, moving the button 30 toward the bottom end of the guide groove 131. This ensures that the size of the clamping opening between the first clamping portion 12 and the second clamping portion 22 is sufficient to accommodate the diameter of the water pipe being worked on. Next, when a longitudinal force is applied to the guide groove 131 to the button 30 (for example, to move the second pliers body 20 upward relative to the first pliers body 10), the ratchet of the button 30 can intermittently disengage and slide along the ratchet of the guide groove 131 (see Figures 7 to 9). In this way, the size of the clamping opening between the first clamping portion 12 and the second clamping portion 22 can be efficiently reduced, and the effect of efficiently clamping the water pipe to be worked on can be obtained.
[0017] Other embodiments will be described with reference to Figures 10 to 12. In another embodiment, the pivot hole 23a of the second pliers body 20a of the water pipe pliers 1a is provided in the second handle portion 21a, and the second gripping portion 22a is movably provided on the first pliers body 10a and assembled to the second handle portion 21a (for example, a concave-convex fitting is possible, but is not limited thereto). The second handle portion 21a drives the second clamping portion 22a to move relative to the first pliers body 10a by swinging. This causes the first clamping portion to loosen or tighten relative to each other. As a result, when operating the device, the water pipe pliers 1a can be quickly tightened or loosened by slightly reciprocating the second handle portion 21a. Therefore, it can be operated simply, quickly, and efficiently. [Explanation of Symbols]
[0018] 1, 1a: Water pipe pliers 10, 10a: First pliers body 11: First handle section 12:First clamping part 13: Torso 131: Guide groove 132: Dentition 133: 1st tooth part 20, 20a: Second pliers body 21, 21a: Second handle section 22, 22a: Second clamping part 23, 23a: Pivot hole 30: Button 31: Button base 311: Storage groove 312: Hole 313: Button body 314: Pressure plate 315: Slot 316: Pin 317: Groove 32: Engaging tooth member 321: 2nd tooth part 322: Inclined surface 33: Elastic member 40: Recovering elastic sheet D1: Radial size of the pressure plate D2: Radial size of the support hole D3: Radial size of one end of the button body W: Guide groove width
Claims
1. These are water pipe pliers, A first pliers body comprising a first handle portion, a first clamping portion, and a body portion connected between the first handle portion and the first clamping portion, wherein a guide groove is provided in the body portion, and a row of teeth is provided on one side of the guide groove, The second pliers body includes a second handle, a second gripping section, and a axial support hole, A water pipe pliers comprising a button that penetrates the guide groove and the shaft support hole, and includes a button base, an engaging tooth member, and an elastic member provided between the button base and the engaging tooth member, wherein the button base moves relative to the guide groove along the axial direction of the button so as to prevent the engaging tooth member from engaging with the teeth row, and the engaging tooth member moves relative to the button base along the radial direction of the button so as to be able to releasably engage with the teeth row.
2. The water pipe pliers according to claim 1, wherein the button base and the engaging tooth member are fitted together in a concave and concave manner.
3. The water pipe pliers according to claim 2, wherein the button base includes a housing groove for housing the engaging tooth member, and the elastic member elastically abuts between the groove wall of the housing groove and the engaging tooth member.
4. The water pipe pliers according to claim 3, wherein the groove wall of the receiving groove includes a recessed hole, and one end of the elastic member is inserted into the recessed hole.
5. The water pipe pliers according to claim 1, wherein the button base includes a button body inserted through the guide groove and the shaft support hole, and a pressing plate attached to one end of the button body, the radial size of the pressing plate being greater than the radial size of the shaft support hole, and the radial size of the other end of the button body being greater than the groove width of the guide groove.
6. The water pipe pliers according to claim 5, wherein the button body includes a slot, and the pressing plate includes a pin inserted into the slot.
7. The water pipe pliers according to claim 5, further comprising a retractable elastic sheet provided on the second pliers body, wherein one end face of the button body includes a groove, and one end of the retractable elastic sheet elastically contacts the bottom surface of the groove.
8. The water pipe pliers according to any one of claims 1 to 7, wherein the button is immobile relative to the guide groove.
9. The water pipe pliers according to any one of claims 1 to 7, wherein the engaging tooth member includes at least one second tooth portion that meshes with the tooth row, and the second tooth portion includes an inclined surface facing the tooth row.
10. The water pipe pliers according to any one of claims 1 to 7, wherein the engaging tooth member includes at least one second tooth portion that meshes with the tooth row and an inclined surface facing the tooth row, the tip of the inclined surface being higher than the tip of the at least one second tooth portion.
11. The water pipe pliers according to any one of claims 1 to 7, wherein the first tooth portion of the tooth row and the second tooth portion of the engaging tooth member are ratchets inclined toward the first clamping portion.
12. The water pipe pliers according to claim 1, wherein the shaft support hole is provided in the second handle portion, the second clamping portion is movably provided on the first pliers body and assembled to the second handle portion, and the second handle portion drives the second clamping portion to move relative to the first pliers body by swinging, thereby loosening or tightening relative to the first clamping portion.