CN209078566U - A kind of gripping tongs of curved nozzle type - Google Patents

Abstract

The utility model discloses a curved-mouth type duckbill pliers, comprising a lower pliers head, an upper pliers head, a first pliers handle and a second pliers handle, and a pin shaft passes between the first and second pliers handles Rotationally connected, the inner surface of the upper clamp head is provided with upper clamping blocks at equal distances, the inner surface of the upper clamp head is provided with an upper clamping slot between the adjacent upper clamping blocks, and the inner surface of the lower clamp head is provided with an upper clamping slot. The lower clamping grooves are equally spaced, and the inner surface of the lower clamping head is provided with a lower clamping block between the adjacent lower clamping grooves. At the same time, a one-to-one corresponding structure of clamping blocks and clamping grooves are set on the corresponding surfaces of the upper and lower clamping heads, so that when the lower clamping head and the upper clamping head are closed and clamped, the corresponding clamping blocks and clamping grooves Corresponding to the clamping, the clamping effect on the upper and lower directions of the clamping object is realized, which further increases the clamping force of the clamp head and prevents the clamp head from slipping.

Description

A curved-billed duckbill pliers

technical field

The utility model relates to the technical field of duckbill pliers, in particular to a curved-bill type duckbill pliers.

Background technique

Duck-bill pliers are similar to flat-nose pliers. Because there are usually no rib-shaped teeth in their jaws, they are most suitable for repairing steel reeds in textile factories, and play an important role in the field of machinery.

However, when the existing duckbill pliers clamp the object, the object is usually only clamped by one side of the clamp head. When the surface of the object is not rough enough, the clamping force between the clamp head and the object will be insufficient, and the object cannot be clamped. Stable clamping, which reduces the actual use effect of duckbill pliers.

Utility model content

The purpose of the utility model is to propose a curved-mouth type duckbill pliers in order to solve the shortcomings existing in the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a curved-mouth duck-bill pliers, comprising a lower pliers head, an upper pliers head, a first pliers handle and a second pliers handle, the first pliers handle and The second clamp handles are connected by a pin shaft, the inner surface of the upper clamp head is equidistantly provided with upper clamping blocks, and the inner surface of the upper clamp head is located between adjacent upper clamping blocks with upper clamping grooves , the inner surface of the lower clamp head is equally spaced with lower clamping grooves, and the inner surface of the lower clamp head is provided with a lower clamping block between adjacent lower clamping grooves.

Preferably, the cross-sections of the lower pliers head and the upper pliers head are both bent-billed duckbill structures.

Preferably, a positioning block is welded on the lower surface of the lower jaw, and a pressure rod is rotatably connected inside the positioning block.

Preferably, the pressing rod is a two-section structure, one end of which is a threaded rod structure and the other end is a circular plate structure.

Preferably, there are three upper clamping blocks and three lower clamping grooves, and the three upper clamping blocks and the three lower clamping grooves are clamped in one-to-one correspondence.

Preferably, there are three lower clamping blocks and three upper clamping slots, and the three lower clamping blocks and the three upper clamping slots are clamped in one-to-one correspondence.

Preferably, the outer surfaces of the arc-shaped ends of the first clamp handle and the second clamp handle are both wrapped with anti-skid leather covers.

The utility model provides a curved-mouth duck-bill pliers, which has the following beneficial effects:

(1) The duckbill pliers adopts a curved pliers head structure, which can increase the clamping force of the pliers and facilitate the operator to turn the pliers handle to operate. One-to-one corresponding structure of the clamping block and the clamping groove, so that when the lower clamp head and the upper clamp head are closed and clamped, the corresponding clamping block and the clamping groove are clamped correspondingly, so as to realize the clamping effect of the clamped object in the upper and lower directions. , which further increases the clamping force of the pliers and prevents the pliers from slipping.

(2) The duckbill pliers pass through the set pressure rod, and one end of the threaded rod of the pressure rod can rotate in the positioning block to adjust the amplitude of the pressure rod moving out of the positioning block, so as to limit the rotation amplitude of the pliers handle. It not only avoids the phenomenon of excessive rotation of the pliers handle, but also can adjust the rotation amplitude of the pliers handle in time to meet different usage needs.

Description of drawings

Fig. 1 is the overall structure schematic diagram of a kind of curved mouth type duckbill pliers proposed by the utility model;

Fig. 2 is the partial structure schematic diagram of the upper clamp head in the utility model;

FIG. 3 is a partial structural schematic diagram of the middle and lower pliers of the present invention.

illustration:

1. Lower clamp head; 2. Upper clamp head; 3. Pin shaft; 4. First clamp handle; 5. Anti-skid leather cover; 6. Positioning block; 7. Pressure rod; 8. Second clamp handle; 9. Upper Card block; 10, upper card slot; 11, lower card block; 12, lower card slot.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example.

Referring to Figures 1-3, a bent-nose duckbill pliers includes a lower pliers head 1, an upper pliers head 2, a first pliers handle 4 and a second pliers handle 8, a first pliers handle 4 and a second pliers handle 8 They are connected by the rotation of the pin shaft 3, the inner surface of the upper clamp head 2 is equidistantly provided with upper clamping blocks 9, and the inner surface of the upper clamp head 2 is located between the adjacent upper clamping blocks 9. The inner surface of the pliers head 1 is provided with lower clamping slots 12 equidistantly, and the inner surface of the lower pliers head 1 is provided with a lower clamping block 11 between the adjacent lower clamping slots 12 .

The cross-sections of the lower pliers 1 and the upper pliers 2 are all curved duckbill structures, the lower surface of the lower pliers 1 is welded with a positioning block 6, and the interior of the positioning block 6 is rotatably connected with a pressure rod 7, and the pressure rod 7 is. Two-stage structure, one end of which is a threaded rod structure, and the other end is a circular plate structure, which can rotate the pressing rod 7 to move it out or into the positioning block 6, so as to clamp and position the rotation range of the second clamp handle 8. In order to prevent the second clamp handle 8 from rotating excessively, there are three upper clamping blocks 9 and three lower clamping slots 12, and the three upper clamping blocks 9 and the three lower clamping slots 12 are clamped in one-to-one correspondence. There are three clamping blocks 11 and three upper clamping grooves 10, and the three lower clamping blocks 11 and the three upper clamping grooves 10 are clamped in one-to-one correspondence. The arcs of the first clamp handle 4 and the second clamp handle 8 The outer surface of the shaped end is wrapped with a non-slip holster 5 .

Working principle: When using, hold the first clamp handle 4 and the second clamp handle 8 in the palm, and cooperate with the anti-slip holster 5 to increase the frictional resistance between the palm and the clamp handle to prevent the phenomenon of falling out of the hand. and the lower clamp head 1 are close to the object to be clamped, and the first clamp handle 4 and the second clamp handle 8 are rotated and opened, so that the upper clamp head 2 and the lower clamp head 1 are separated by the rotation of the pin shaft 3. When the head 2 and the lower clamp head 1 clamp the object, turn the first clamp handle 4 and the second clamp handle 8 to close it. At this time, the upper clamp head 2 and the lower clamp head 1 are closed. At the same time, the upper clamping block 9 is closed. and the lower clamping block 11 first come into contact with the clamping object, and as the jaws gradually close, the upper clamping block 9 and the lower clamping block 11 will gradually increase the clamping force on the object to prevent the clamping object from falling off. When the pliers are not clamped, the upper clamping block 9 and the lower clamping block 11 will be embedded in the lower clamping slot 12 and the upper clamping slot 10 respectively for embedded storage. On the other hand, the pressing rod 7 is rotated to change it to move out of the positioning block The amplitude of 6, so that when the pliers handle is rotated, it can play a role of limiting protection on the pliers handle, preventing the pliers handle from rotating excessively, and the duckbill pliers can be used completely.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Under the premise of the spirit and scope, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the claimed invention. The claimed scope of the present invention is defined by the appended claims and their equivalents.

Claims (7)

1. a kind of gripping tongs of curved nozzle type, including lower pliers head, upper grip head, the first clamp handle and the second clamp handle, which is characterized in that described It is rotatablely connected between first clamp handle and the second clamp handle by pin shaft, the inner surface of the upper grip head has been placed equidistant with fixture block, institute It states the inner surface of upper grip head and offers card slot between adjacent upper fixture block, the inner surface of the lower pliers head equidistantly offers Lower bayonet slot, the inner surface of the lower pliers head and is provided with lower fixture block between adjacent lower bayonet slot.

2. a kind of gripping tongs of curved nozzle type according to claim 1, which is characterized in that section of the lower pliers head and upper grip head Face is in curved nozzle type duckbill structure.

3. a kind of gripping tongs of curved nozzle type according to claim 1, which is characterized in that weld the lower surface of the lower pliers head There is locating piece, and the inner rotation of locating piece is connected with compression bar.

4. a kind of gripping tongs of curved nozzle type according to claim 3, which is characterized in that the compression bar is two-part structure, One end is screw thread rod structure, and the other end is circular plate structure.

5. a kind of gripping tongs of curved nozzle type according to claim 1, which is characterized in that the upper fixture block and lower bayonet slot are all provided with There are three setting, and three upper fixture blocks and three lower bayonet slots correspond clamping between any two.

6. a kind of gripping tongs of curved nozzle type according to claim 1, which is characterized in that the lower fixture block and upper card slot are all provided with There are three setting, and three lower fixture blocks and three upper card slots correspond clamping between any two.

7. a kind of gripping tongs of curved nozzle type according to claim 1, which is characterized in that first clamp handle and the second clamp handle Arc end outer surface be enclosed with non-slip leather case.