Self-opening pliers capable of adjusting opening and closing angle

Abstract

The utility model relates to the technical field of pliers, in particular to a pair of self-opening pliers capable of adjusting opening and closing angles, which comprises a force holding rod, a movable blade arranged at one end of the force holding rod, a limiting shaft sleeve fixedly connected with one side of the movable blade, a connecting shaft sleeved in the limiting shaft sleeve, an inserting block mounted in the connecting shaft, and a threaded sleeve arranged on one side of the inserting block. A threaded rod is sleeved with the threaded sleeve, an adjusting rod is fixedly connected to one end of the threaded rod, a lower blade is arranged on one side of the adjusting rod, and a stress holding rod is fixedly connected to one end of the lower blade; the pruning pliers have the beneficial effects that by arranging the assembling mechanism, the movable cutting edges can be conveniently replaced according to use requirements, so that the pruning pliers can adjust the distance between the movable cutting edges and the lower cutting edges by replacing the movable cutting edges with different opening and closing angles, and the pruning angle is adjusted; the branch grafting and pruning work under different requirements can be met, and the pruning work has pertinence.

Description

Technical Field

[0001] The utility model relates to the technical field of pliers, in particular to a pair of self-opening pliers with adjustable opening and closing angles. Background Art

[0002] Self-opening pliers typically consist of jaws and arms, with a spring between the arms, which can be located in the opening between the inner sides of the upper ends of the arms. When the arms are squeezed, the spring is compressed, narrowing the opening and closing the jaws into the working state. Once the operation is complete, simply release the arms and stop applying force, and the spring resets, pushing the arms apart, widening the opening again, and the jaws automatically open.

[0003] In the prior art, pruning pliers are also a type of self-opening pliers. After searching, it was found that the application number is 202320245964.7, which is a new type of branch pruning pliers, including a first handle and a second handle, the upper side of the first handle is connected to a shearing block, the upper side of the second handle is connected to a shearing blade, the upper side of the first handle is connected to the rear side of the second handle, the second handle is connected to the lower side of the first handle with a spring, and a limiting device is provided on the upper side of the second handle, and the limiting device includes a circular block. This new type has the effect of avoiding the phenomenon that the card rod affects the use of the shearing block and the shearing blade when the card rod is not needed.

[0004] However, the above device has the following shortcomings: when the device is normally used to prune branches, due to the different thicknesses of the branches, the adjustment range of the opening and closing angles between the blades of the device is small, so when the device is used to prune thicker branches, it is difficult to cut them all off in one go, thereby reducing the pruning efficiency of the device. At the same time, when the blades of the device are damaged, it is difficult to replace them, resulting in a short service life of the device. Utility Model Content

[0005] The purpose of the utility model is to provide a self-opening pliers with adjustable opening and closing angles, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a self-opening pliers with adjustable opening and closing angles, comprising: a force gripping rod, a movable blade is provided at one end of the force gripping rod, a limiting shaft sleeve is fixedly connected to one side of the movable blade, a connecting shaft is provided inside the limiting shaft sleeve, an insert block is installed in the connecting shaft, a threaded sleeve is provided on one side of the insert block, a threaded rod is provided inside the threaded sleeve, and an adjusting rod is fixedly connected to one end of the threaded rod.

[0007] A lower blade is provided on one side of the adjusting rod, and one end of the lower blade is fixedly connected to a force-bearing grip rod.

[0008] Preferably, the fixing sleeve on the force grip rod is provided with an anti-slip sleeve, and one end of the movable blade is fixedly connected to one end of the force grip rod by a hexagon socket bolt.

[0009] Preferably, the limiting sleeve is slidably connected to the connecting shaft, a slot is provided on the inner ring surface of the limiting sleeve, the slot is slidably connected to the plug block, the connecting shaft is hollow, a through hole is provided on the connecting shaft, the through hole is slidably connected to the plug block, and the limiting frame is fixedly clamped in the connecting shaft.

[0010] Preferably, a limiting slot is provided on the limiting frame, and the limiting slot is slidingly connected to the bottom of the L-shaped block. One side of the L-shaped block is fixedly connected to the insert block, and the other side of the L-shaped block is rotatably connected to one end of the connecting rod through a pin shaft, and the other end of the connecting rod is rotatably connected to the connecting sleeve through the pin shaft.

[0011] Preferably, the threaded sleeve is fixedly mounted on the limit frame, one end of the connecting sleeve is fixedly connected to the limit cover, the adjusting rod is sleeved in the limit cover and is rotatably connected to the limit cover, and the connecting sleeve is sleeved in the connecting shaft and is slidably connected to the connecting shaft.

[0012] Preferably, the fixed sleeve at one end of the force-bearing grip rod is provided with an anti-slip sleeve, the rotating sleeve of the connecting shaft is arranged in the lower blade, and the fixed sleeve at one end of the connecting shaft is provided with a limiting ring.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: through the coordinated use of the limiting shaft sleeve, the connecting shaft, the insert block, the threaded sleeve, the threaded rod, the adjusting rod, the slot, the through hole, the limiting frame, the limiting groove, the L-shaped block, the pin shaft, the connecting rod, the connecting sleeve and the limiting cover, the movable blade can be conveniently replaced according to the use requirements, so that the pruning pliers can adjust the distance between the movable blade and the lower blade by replacing the movable blade with different opening and closing angles, thereby adjusting the pruning angle, which can meet the branch grafting and pruning work under different requirements and make the pruning work targeted. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0016] Figure 3 This is a top view schematic diagram of the internal structure of the utility model;

[0017] Figure 4 It is a bottom view schematic diagram of the internal structure of the utility model.

[0018] In the figure: 1. Grip rod; 2. Movable blade; 3. Limiting sleeve; 4. Connecting shaft; 5. Insert block; 6. Threaded sleeve; 7. Threaded rod; 8. Adjusting rod; 9. Lower blade; 10. Grip rod; 11. Anti-slip sleeve; 12. Slot; 13. Through hole; 14. Limiting frame; 15. Limiting groove; 16. L-shaped block; 17. Pin; 18. Connecting rod; 19. Connecting sleeve; 20. Limiting cover; 21. Limiting ring. DETAILED DESCRIPTION

[0019] In order to clearly and completely describe the purpose and technical solution of the present invention and make its advantages more clearly understood, the following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention and are not intended to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0020] See also Figures 1-4 The utility model provides a technical solution: a self-opening pliers with adjustable opening and closing angles, comprising: a force gripping rod 1, a movable blade 2 is provided at one end of the force gripping rod 1, one side of the movable blade 2 is fixedly connected to a limiting sleeve 3, a connecting shaft 4 is sleeved inside the limiting sleeve 3, an insert block 5 is installed in the connecting shaft 4, a threaded sleeve 6 is provided on one side of the insert block 5, a threaded rod 7 is sleeved inside the threaded sleeve 6, an adjusting rod 8 is fixedly connected to one end of the threaded rod 7, a lower blade 9 is provided on one side of the adjusting rod 8, and one end of the lower blade 9 is fixedly connected to a force gripping rod 10.

[0021] The movable blade 2 is rotatably connected to the lower blade 9 by the connecting shaft 4, so that it is convenient to shear the entire pliers by operating the force grip rod 1 and the force grip rod 10. The movable blade 2 and the lower blade 9 are fixedly connected with a spring, so that the entire pliers can be opened automatically. When in use, the user first replaces the appropriate movable blade 2 according to the pruning needs, and by twisting the adjusting rod 8, the adjusting rod 8 drives the threaded rod 7 to rotate. The threaded rod 7 moves in the direction away from the outside of the limiting sleeve 3 with the cooperation of the threaded sleeve 6, thereby indirectly driving the insert block 5 to slide out of the slot 12 opened in the limiting sleeve 3 through the movement of the threaded rod 7, so that the insert block 5 releases the limit on the slot 12, and then removes the movable blade 2 in turn through the hexagonal bolt fixedly connected between the lower movable blade 2 and the force grip rod 1. By installing movable blades 2 with different opening and closing angles, the cutting work of branches of different diameters can be met. Example

[0022] On the basis of embodiment 1, a non-slip sleeve 11 is fixed on the force grip rod 1, and one end of the movable blade 2 is fixedly connected to the end of the force grip rod 1 by a hexagon socket bolt. The non-slip sleeve 11 set on the force grip rod 1 and the force grip rod 10 can increase the friction force and facilitate use. The limiting sleeve 3 is slidably connected to the connecting shaft 4, and a slot 12 is provided on the inner ring surface of the limiting sleeve 3. The slot 12 is slidably connected to the plug block 5. The connecting shaft 4 is hollow, and a through hole 13 is provided on the connecting shaft 4. The through hole 13 is connected to the plug block 5 is slidingly connected, the limiting frame 14 is fixedly engaged in the connecting shaft 4, the limiting sleeve 3 is slidingly connected to the connecting shaft 4, thereby facilitating the installation and removal of the limiting sleeve 3, the slot 12 opened on the inner ring surface of the limiting sleeve 3 and the through hole 13 opened on the connecting shaft 4 limit the insertion block 5 when sliding, and a limiting groove 15 is opened on the limiting frame 14. The limiting groove 15 is slidingly connected to the bottom of the L-shaped block 16. One side of the L-shaped block 16 is fixedly connected to the insertion block 5, and the other side of the L-shaped block 16 is connected to one end of the connecting rod 18 through the pin 17. The other end of the connecting rod 18 is connected to the connecting sleeve 19 by rotation through the pin 17. The limit frame 14 is fixedly installed in the connecting shaft 4, thereby fixedly supporting the threaded sleeve 6. The bottom of the L-shaped block 16 is slidably connected to the limit groove 15 opened on the limit frame 14. The L-shaped block 16 and the connecting sleeve 19 are transmitted by the rotation connection between the connecting rod 18 and the pin 17. The threaded sleeve 6 is fixedly installed on the limit frame 14. One end of the connecting sleeve 19 is fixedly connected to the limit cover 20. The adjusting rod 8 is set on the limit The limiting cover 20 is in the position and is rotatably connected to the limiting cover 20. The connecting sleeve 19 is sleeved in the connecting shaft 4 and is slidably connected to the connecting shaft 4. One end of the connecting sleeve 19 is fixedly connected to the limiting cover 20. The limiting cover 20 limits the adjusting rod 8 so that it can rotate in the limiting cover 20 and can also drive the limiting cover 20 to move, so that the limiting cover 20 drives the connecting sleeve 19 to slide on one end of the connecting shaft 4, and then drives the L-shaped block 16 to move through the connecting sleeve 19, and the L-shaped block 16 drives the insertion block 5 to move.

[0023] The user first replaces the appropriate movable blade 2 according to the pruning needs, and by twisting the adjusting rod 8, the adjusting rod 8 rotates in the limiting cover 20, so that the adjusting rod 8 drives the threaded rod 7 to rotate. The threaded rod 7 is screwed out to the outside of the threaded sleeve 6 under the cooperation of the threaded sleeve 6, so that the adjusting rod 8 drives the limiting cover 20 to move in the direction away from the threaded sleeve 6 under the limiting action of the limiting cover 20, so that the limiting cover 20 drives the connecting sleeve 19 to move synchronously, and the connecting sleeve 19 drives the L-shaped block 16 to move in the direction close to the threaded sleeve 6 through the rotation connection of the connecting rod 18 and the pin shaft 17. The L-shaped block 16 is limited by the limiting groove 15 By sliding horizontally, the L-shaped block 16 drives the insertion block 5 to move, causing the insertion block 5 to slide in the direction away from the slot 12 until the insertion block 5 slides out of the slot 12 and slides through the through hole 13, thereby releasing the restriction of the insertion block 5 on the slot 12, thereby releasing the restriction of the insertion block 5 on the limiting sleeve 3. At the same time, by unscrewing the hexagon socket bolt fixed between the movable blade 2 and the force grip rod 1, and then through the sliding connection between the limiting sleeve 3 and the connecting shaft 4, the movable blade 2 is removed in turn, and then the new movable blade 2 is installed in the reverse manner of the above operation. By installing movable blades 2 with different opening and closing angles, the cutting work of branches with different diameters can be met. Example

[0024] On the basis of the second embodiment, one end of the force-bearing grip rod 10 is fixedly sleeved with an anti-slip sleeve 11, the connecting shaft 4 is rotatably sleeved in the lower blade 9, and one end of the connecting shaft 4 is fixedly sleeved with a limit ring 21.

[0025] Both the force grip rod 10 and the force grip rod 1 are fixedly sleeved with an anti-slip sleeve 11, and the anti-slip sleeve 11 is made of rubber. Since rubber has a large friction coefficient, using it as the material of the anti-slip sleeve 11 can effectively increase the friction between the user's hand and the force grip rod 1 and the force grip rod 10, thereby helping to increase the user's hand force and improve trimming efficiency. The limiting ring 21 fixedly sleeved on one end of the connecting shaft 4 limits the lower blade 9 to prevent the lower blade 9 from detaching from the connecting shaft 4.

[0026] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-opening pliers with adjustable opening and closing angles, comprising a gripping rod (1), characterized in that: The gripping rod (1) is provided with a movable blade (2) at one end, and a limited sleeve (3) is fixedly connected to one side of the movable blade (2). A connecting shaft (4) is provided inside the limited sleeve (3), and an insert (5) is installed inside the connecting shaft (4). A threaded sleeve (6) is provided at one side of the insert (5), and a threaded rod (7) is provided inside the threaded sleeve (6). An adjusting rod (8) is fixedly connected to one end of the threaded rod (7). A lower blade (9) is provided on one side of the adjusting rod (8), and one end of the lower blade (9) is fixedly connected to a force-bearing grip rod (10).

2. The self-opening pliers with adjustable opening and closing angles according to claim 1, characterized in that: The fixing sleeve on the force gripping rod (1) is provided with an anti-slip sleeve (11), and one end of the movable blade (2) is fixedly connected to one end of the force gripping rod (1) via a hexagon socket bolt.

3. The self-opening pliers with adjustable opening and closing angles according to claim 2, characterized in that: The limiting sleeve (3) is slidably connected to the connecting shaft (4); a slot (12) is provided on the inner ring surface of the limiting sleeve (3); the slot (12) is slidably connected to the insert block (5); the connecting shaft (4) is hollow; a through hole (13) is provided on the connecting shaft (4); the through hole (13) is slidably connected to the insert block (5); and a limiting frame (14) is fixedly clamped in the connecting shaft (4).

4. The self-opening pliers with adjustable opening and closing angles according to claim 3, characterized in that: The limiting frame (14) is provided with a limiting groove (15), which is slidably connected to the bottom of the L-shaped block (16). One side of the L-shaped block (16) is fixedly connected to the insert block (5), and the other side of the L-shaped block (16) is rotatably connected to one end of the connecting rod (18) through a pin shaft (17). The other end of the connecting rod (18) is rotatably connected to the connecting sleeve (19) through the pin shaft (17).

5. The self-opening pliers with adjustable opening and closing angles according to claim 4, characterized in that: The threaded sleeve (6) is fixedly mounted on the limiting frame (14); one end of the connecting sleeve (19) is fixedly connected to the limiting cover (20); the adjusting rod (8) is sleeved in the limiting cover (20) and is rotatably connected to the limiting cover (20); and the connecting sleeve (19) is sleeved in the connecting shaft (4) and is slidably connected to the connecting shaft (4).

6. The self-opening pliers with adjustable opening and closing angles according to claim 5, characterized in that: One end of the force-bearing grip rod (10) is fixedly sleeved with an anti-slip sleeve (11), the connecting shaft (4) is rotatably sleeved in the lower blade (9), and one end of the connecting shaft (4) is fixedly sleeved with a limiting ring (21).

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