CN212859139U - Water pump pliers with novel tooth's socket - Google Patents

Abstract

A water pump clamp with a novel tooth socket comprises a driving part, a clamping part, a pivot part and a pivoting mechanism. The drive portion includes a drive handle, a drive head, and a pivot slot portion. The drive head comprises an upper clamping surface and upper teeth. The clamping part comprises a clamping handle, a clamping head and a sliding groove part. The clamping head comprises a lower clamping surface and lower teeth. The profile of the upper teeth forms a triangle and the included angle between the midline of the tooth tips of the upper teeth in the triangle and the upper clamping surface comprises an acute angle. The included angle between the arrangement direction of the upper teeth and the upper clamping surface is an acute angle, and the included angle between the arrangement direction of the lower teeth and the upper clamping surface is an acute angle. This water pump pincers after the user takes off one's hand, this water pump pincers still can be from the centre gripping on circular water pipe, therefore the user can have the hand to do something else, for example take the thing to technical staff's work efficiency has been improved.

Description

Water pump pliers with novel tooth's socket

Technical Field

The utility model belongs to the technical field of hardware and tools, especially a water pump pincers with novel tooth's socket.

Background

The water pump pliers are used for clamping flat or cylindrical metal parts and are common tools for mounting and maintaining automobiles, internal combustion engines, agricultural machinery, indoor circular water pipes and the like.

The water pump clamp acts like a pipe clamp. But is lighter, smaller and more exquisite than the breakout tongs and easy to use, and general condition more is applicable to the non-professional emergency of family or uses when simply installing the water pipe, so use comparatively frequently.

The centre of gravity of the teeth of the clamping head is mostly positioned in the second quadrant part of the two-dimensional coordinate of the cross section of the circular water pipe when the existing water pump clamp is used clockwise, if the water pump clamp is used by a single hand or is not supported by people, a large clamping force cannot be obtained, the water pump clamp cannot be fixed on the water pipe by the aid of self weight, the working efficiency of technical personnel is reduced, and the water pump clamp cannot be separated from the hand of a user and can be clamped on the water pipe automatically.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a water pump pliers with a novel tooth socket, which can obtain a larger clamping force and can be separated from the hand of the user to clamp on the water pipe, so as to solve the above problems.

A water pump clamp with a novel tooth socket is used for clamping a circular water pipe. The water pump pliers with the novel tooth grooves comprise a driving part, a clamping part and a pivoting mechanism, wherein the clamping part is pivoted with the driving part, and the pivoting mechanism is pivoted with the driving part and the clamping part. The driving part comprises a driving handle, a driving head and a pivot groove part connected between the driving handle and the driving head. The driving head comprises an upper clamping surface and a row of upper teeth arranged on the upper clamping surface. The clamping part comprises a clamping handle, a clamping head and a sliding groove part connected between the clamping handle and the clamping head. The clamping head comprises a lower clamping surface and a row of lower teeth arranged on the lower clamping surface. When the driving head is folded with the clamping head, the upper clamping surface and the lower clamping surface are mutually attached. The profile of the upper teeth on a section perpendicular to the upper holding surface forms a triangle and the included angle between the midline of the tooth tips of the upper teeth in the triangle and the upper holding surface comprises an acute angle. The profile of the lower teeth on a section perpendicular to the lower holding surface forms a triangle and the angle between the central line of the tooth tip of the lower teeth in the triangle and the lower holding surface includes an acute angle. The extension directions of the tooth tips of the upper teeth and the lower teeth in the central lines of the triangle are opposite, the arrangement direction of the upper teeth and the included angle between the upper clamping surfaces are acute angles, and the arrangement direction of the lower teeth and the included angle between the upper clamping surfaces are acute angles.

Further, the tooth tip of the lower tooth extends away from the pivot mechanism along the center line of the triangle.

Further, the tooth tip of the upper tooth extends toward the direction close to the pivot mechanism at the center line of the triangle.

Furthermore, the included angle between the arrangement direction of the lower teeth and the lower clamping surface is 12-16 degrees.

Furthermore, the included angle between the arrangement direction of the upper teeth and the upper clamping surface is 12-16 degrees.

Further, the tooth tips of the upper and lower teeth are parallel to each other at the center line of the triangle.

Further, the arrangement directions of the upper teeth and the lower teeth are parallel.

Furthermore, the number of the upper teeth and the lower teeth is equal.

Further, when a user holds the water pipe, the upper tooth rows are all positioned on the first quadrant part of a standard two-dimensional coordinate on the section perpendicular to the circular water pipe.

Compared with the existing water pump pliers, the utility model provides a water pump pliers with novel tooth's socket is at the circular water pipe of centre gripping and by the user centre gripping back hard, when the user centre gripping hard, the prong can imbed the surface of water pipe, and because the prong central line of a plurality of teeth of last tooth row extends towards pivot mechanism and goes up the tooth row simultaneously and all be located first quadrant, thereby make each prong to the direction of the top force of water pipe and the contained angle between the gravity direction of centre gripping handle be the acute angle, and then make top force and gravity offset each other, thereby after the user takes off the hand, this water pump pliers still can be from the centre gripping on circular water pipe, consequently, the user can have the hand to do other things, for example, the thing of taking, thereby technical staff's work efficiency has been improved. Meanwhile, when the water pump pliers are used by a user, the water pump pliers are clamped on the circular water pipe, so that the hand of the user only needs to apply a pressing force to the clamping handle without tightly holding the driving handle, the force applied to the hand of the user is more concentrated, and a larger clamping force is obtained.

Drawings

Fig. 1 is the structure schematic diagram of the water pump pliers with the novel tooth socket provided by the utility model.

Fig. 2 is a view showing a state that the water pump clamp having the novel spline of fig. 1 is used for clamping a circular water pipe.

Fig. 3 is a close-up view of the water pump clamp of fig. 1 with the novel spline at the jaws.

Detailed Description

Specific examples of the present invention will be described in further detail below. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.

As shown in fig. 1 to fig. 3, it is a schematic structural diagram of a water pump pliers with a novel tooth socket provided by the present invention. The water pump pliers with the novel tooth grooves comprise a driving part 10, a clamping part 20 pivoted with the driving part 10, and a pivoting mechanism 30 pivoted with the driving part 10 and the clamping part 20. The water pump pliers with the novel tooth grooves also comprise other functional modules, such as an anti-skid handle sleeve and the like, which are known to those skilled in the art and will not be described in detail herein. Meanwhile, the driving portion 10, the clamping portion 20, and the pivot mechanism 30 may be made of various metals, and corresponding heat treatment and surface treatment are performed to meet the use standard.

It should be noted that the water pump clamp with the novel tooth socket is used for clamping a circular water pipe. The circular water pipe is generally installed on the water pump. It is of course conceivable that the water pump clamp could also be used to clamp water pipes of other cross-sectional shapes, such as square.

The driving portion 10 includes a driving shaft 11, a driving head 12, and a pivot portion 13 connected between the driving shaft 11 and the driving head 12. The driving handle 11 is used for being held by the hand of the user, and the length thereof can be set according to the actual requirements, such as the specification of a water pump clamp, etc., and it should be the prior art, and will not be described herein again. The driving head 12 is integrally formed with the driving handle 11. In order to provide a larger clamping force and to create a lever effect, the extension direction of the driving head 12 is at an angle to the extension direction of the driving shaft 11, in this embodiment, the angle between the extension direction of the driving head 12 and the extension direction of the driving shaft 11 is an obtuse angle. The driving head 12 includes a lower clamping surface 121, a lower tooth row 122 disposed on the lower clamping surface 121, and a lower abutting tooth row 123 connected between the lower tooth row 122 and the lower clamping surface 121. The lower clamping surface 121 is used to clamp or abut the water pipe and is generally formed with a plurality of V-shaped grooves. The lower tooth row 122 is provided on the lower holding surface 121 and includes a plurality of lower teeth. An included angle 41 between the arrangement direction of the plurality of lower teeth and the lower holding surface 121 on a cross section perpendicular to the lower holding surface 121 is an acute angle. The included angle between the arrangement direction of the lower teeth and the lower clamping surface 121 is 12-16 degrees, and the size of the acute angle can be designed according to actual requirements. In this embodiment, the acute angle is 15 degrees. In a cross section perpendicular to the lower holding surface 121, each of the lower teeth has a profile forming a triangle and an included angle between a center line of a tip of the lower tooth in the triangle and the lower holding surface 121 includes an acute angle such that the tip of any one lower tooth is not perpendicular to the lower holding surface 121 at the center line of the triangle. It will be appreciated that the tips of a plurality of said lower teeth are parallel to each other at the midline of the respective triangle. Meanwhile, the central line of the tooth tip of each lower tooth extends in the direction away from the pivot mechanism 30, and the lower abutting tooth row 123 of the lower teeth has a plurality of lower abutting teeth. The profile of any one of the lower abutting teeth on the section perpendicular to the lower holding surface 121 also forms a triangle, and the tooth tip of the lower abutting tooth is perpendicular to the arrangement direction of the lower abutting teeth on the midline of the triangle. Referring to fig. 1 or 3 again, on a cross section perpendicular to the lower clamping surface 121, the arrangement direction of the lower teeth, the arrangement direction of the lower abutting teeth, and the lower clamping surface form a triangle. The triangle is used for clamping the water pipe so as to achieve the purpose of clamping. The pivot portion 13 is used for disposing the pivot mechanism 30, and therefore will be described in detail below with reference to the pivot mechanism 30.

The clamping portion 20 includes a clamping shank 21, a clamping head 22, and a chute portion 23 connected between the clamping shank 21 and the clamping head 21. The clamping lever 21 has the same function and structure as the driving lever 11, and will not be described in detail. The gripping head 22 includes an upper gripping surface 221, a row of upper teeth 222 disposed on the upper gripping surface 221, and an upper abutting teeth 223 connected between the upper teeth 222 and the upper gripping surface 221. The lower clamping surface 221 is used for clamping or abutting against the water pipe and is generally provided with a plurality of V-shaped grooves. When the driving head 12 is folded with the clamping head 22, the upper and lower clamping surfaces 221, 121 are attached to each other. The clamping head 22 is integrally formed with the clamping shank 21. The grip handle 21 is adapted to be partially pulled by a user's finger, and the grip head 22 extends at an angle to the sliding groove 23 in order to provide a greater grip force, to facilitate use, and to provide a lever effect. The sliding groove 23 is angled with respect to the direction of extension of the clamping lever 21. In this embodiment, the angle between the extending direction of the clamping head 22 and the extending direction of the sliding groove 23 is an obtuse angle, the angle between the sliding groove 23 and the extending direction of the clamping handle 21 is an obtuse angle, and the extending direction of the clamping handle 21 is parallel to the extending direction of the driving handle 11. It can be understood that the upper tooth row 222, the upper abutting tooth row 223, the lower tooth row 122 and the lower abutting tooth row 123 of the upper clamping surface 221 have the same structural design principle, so that the included angle 40 between the arrangement direction of a plurality of upper teeth and the upper clamping surface 221 on the cross section perpendicular to the upper clamping surface 221 is an acute angle. The included angle between the arrangement direction of the upper teeth and the upper clamping surface is 12-16 degrees, and the size of the acute angle can be designed according to actual needs. In this embodiment, the acute angle is 15 °, and an included angle 40 between the arrangement direction of the plurality of upper teeth on the cross section of the upper clamping surface 221 and the upper clamping surface 221 is a diagonal relationship, which is shown in fig. 3. In order to provide a greater clamping force, the profile of each upper tooth in a cross-section perpendicular to the upper clamping surface 221 forms a triangle and the angle between the midline of the upper tooth in the triangle and the upper clamping surface 221 comprises an acute angle, such that the apex of any one upper tooth is not perpendicular to the upper clamping surface 221 at the midline of the triangle. And the tooth tips of a plurality of the upper teeth are parallel to each other at the central line of the respective triangle, and the central line of the tooth tip of each upper tooth extends toward the direction approaching the hinge mechanism 30. The upper abutting teeth row 223 has a plurality of upper abutting teeth. The profile of any one of the upper abutting teeth on the cross section perpendicular to the upper clamping surface 221 also forms a triangle, and the tooth tip of the upper abutting tooth is perpendicular to the arrangement direction of the upper abutting teeth on the midline of the triangle. Referring to fig. 1 or fig. 3 again, the arrangement direction of the upper teeth, the arrangement direction of the upper abutting teeth, and the upper clamping surface 221 form a triangle on the interface perpendicular to the upper clamping surface 221. The profile formed by the upper abutting tooth row 223 and the lower tooth row 122 and the profile formed by the upper tooth row 222 and the lower abutting tooth row 123 are parallelogram. The parallelogram is used for clamping the water pipe, and due to the inclined extension design that the central lines of the lower tooth row 122 and the upper tooth row 222 are opposite, larger clamping force can be obtained, and the water pipe is prevented from slipping so as to achieve the purpose of clamping.

The pivot mechanism 30 includes a pivot 31 disposed on the pivot portion 13 of the driving portion 10, and a plurality of position-limiting shaft holes 32 disposed on the sliding groove portion 23 of the clamping portion 20. The pivot 31 is a cylinder provided on the drive shaft 11. In the prior art, the pivot 31 has a notch for sliding and fixing the relative position in a limiting shaft hole 32 described below, but the pivot 31 is prior art and will not be described herein again. The limiting shaft hole 32 is formed by intersecting a plurality of circles with the same radius. The radius of the circle can be designed according to the actual requirement, and in the embodiment, the radius of the circle is 2.94 centimeters. During operation, the position of the pivot 31 in the position-limiting shaft hole 32 can be adjusted according to actual operation requirements, so that the sizes of the openings of the driving head 12 and the clamping head 22 can be changed.

When the water pump clamp with the novel tooth sockets works, the upper tooth row 222 is located on a first quadrant part on a two-dimensional coordinate of the cross section of the circular water pipe, and the lower tooth row 122 is located on a third quadrant part on the two-dimensional coordinate of the cross section of the circular water pipe, so that a large clamping force is obtained. Simultaneously when the user takes off the hand, go up tooth row 222 part and be located the first quadrant of the cross-section two-dimensional coordinate of circular water pipe all the time, and rely on self weight can't cross the first quadrant part of circular water pipe cross-section two-dimensional coordinate and go to the second quadrant part, can be from the centre gripping on circular water pipe after the user takes off the hand promptly, it is more convenient when using.

Of course, the assembly method of the driving portion 10, the clamping portion 20 and the pivot mechanism 30 should be included before the description of the application, which is well known to those skilled in the art, and will not be described in detail herein.

Compared with the prior art, the utility model provides a water pump pincers with novel tooth's socket is at the circular water pipe of centre gripping and by the user centre gripping back hard, when the user centre gripping hard, the prong can imbed the surface of water pipe, and because the prong central line of a plurality of teeth of last tooth row 222 extends towards pivot mechanism 30 and goes up tooth row 222 simultaneously and all be located first quadrant, thereby make each prong be the acute angle to the contained angle between the direction of the top force of supporting of water pipe and the direction of gravity of clamping handle 21, and then make top force and gravity offset each other, thereby after the user takes off the hand, this water pump pincers still can be from holding on circular water pipe. Therefore, the user can have hands to do other things, such as taking things, thereby improving the working efficiency of the technical staff. Meanwhile, when the water pump pliers are used by a user, the water pump pliers are clamped on the circular water pipe, so that the hand of the user only needs to apply a pressing force to the clamping handle without tightly holding the driving handle, the force applied to the hand of the user is more concentrated, and a larger clamping force is obtained

The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention, and any modification, equivalent replacement or improvement within the spirit of the present invention is encompassed by the claims of the present invention.

Claims (9)

1. The utility model provides a water pump pincers with novel tooth's socket for the circular water pipe of centre gripping, its characterized in that: the water pump pliers with the novel tooth socket comprise a driving part, a clamping part pivoted with the driving part and a pivoting mechanism of the driving part and the clamping part, wherein the driving part comprises a driving handle, a driving head and a pivoting groove part connected between the driving handle and the driving head, the driving head comprises an upper clamping face and a row of upper teeth arranged on the upper clamping face, the clamping part comprises a clamping handle, a clamping head and a sliding groove part connected between the clamping handle and the clamping head, the clamping head comprises a lower clamping face and a row of lower teeth arranged on the lower clamping face, when the driving head and the clamping head are folded, the upper clamping face and the lower clamping face are mutually attached, the vertical direction is formed on the cross section of the upper clamping face, the profile of the upper teeth forms a triangle, and the tooth tips of the upper teeth are in the central line of the triangle and the included angle between the upper clamping face and the lower teeth comprises a included angle The tooth clamping device comprises a lower clamping surface, a plurality of acute angles, a triangle is formed on the cross section perpendicular to the lower clamping surface by the contour of the lower teeth, the included angle between the central line of the tooth tips of the lower teeth in the triangle and the lower clamping surface comprises an acute angle, the extending directions of the central lines of the tooth tips of the upper teeth and the tooth tips of the lower teeth in the triangle are opposite, the included angle between the arrangement direction of the upper teeth and the upper clamping surface is an acute angle, and the included angle between the arrangement direction of the lower teeth and the upper clamping surface is an acute angle.

2. The water pump pliers with the novel gullets of claim 1, wherein: the tooth tip of the lower tooth extends in the direction away from the pivoting mechanism along the midline of the triangle.

3. The water pump pliers with the novel gullets of claim 1, wherein: the tooth tip of the upper tooth extends towards the direction close to the pivoting mechanism in the middle line of the triangle.

4. The water pump pliers with the novel gullets of claim 1, wherein: the included angle between the arrangement direction of the lower teeth and the lower clamping surface is 12-16 degrees.

5. The water pump pliers with the novel gullets of claim 1, wherein: the included angle between the arrangement direction of the upper teeth and the upper clamping surface is 12-16 degrees.

6. The water pump pliers with the novel gullets of claim 1, wherein: the tooth tips of the upper teeth and the lower teeth are parallel to each other on the central line of the triangle.

7. The water pump pliers with the novel gullets of claim 1, wherein: the arrangement directions of the upper teeth and the lower teeth are parallel.

8. The water pump pliers with the novel gullets of claim 1, wherein: the number of the upper teeth is equal to that of the lower teeth.

9. The water pump pliers with the novel gullets of claim 3, wherein: when a user clamps the water pipe, the upper tooth rows are all positioned on the first quadrant part of the two-dimensional coordinate in the standard two-dimensional coordinate on the cross section vertical to the circular water pipe.

Images