CN206909199U - Structure of power-saving gardening scissors - Google Patents

Abstract

The utility model discloses a labor-saving gardening shear structure, which includes: a first handle and a second handle whose front ends are bolted to each other, a blade and a driving connecting rod. The gardening shear is controlled by a second handle. The abutment part of the handle reaches the amplification angle of the driving link, so that the angle between the driving link, the second handle and the blade is between 120 degrees and 140 degrees, so that the first handle and the second handle The force-applying arm formed between the blade and the jaw is greater than the resistance arm formed between the blade and the jaw, which not only greatly improves the transmission of shearing force, but also makes use more labor-saving. The handle and the second handle are pressed together at one time to achieve the shearing effect of one knife closing, which makes the structure more convenient to use and improves the efficiency.

Description

Labor-saving gardening shear structure

technical field

The utility model relates to a gardening scissors, in particular to a gardening shears structure which is labor-saving and can achieve the cutting effect at one time.

Background technique

Press, the existing labor-saving gardening shears structure, please refer to Figures 9 to 12, the gardening shears 50 mainly connect a first handle 51 and a second handle 52 to have a fulcrum, so that the first handle 51 and the second handle 52 can produce stretching, wherein one end of the first handle 51 is provided with a jaw portion 511, and a blade piece 53 is pierced in the middle part of the first handle 51, so that the blade piece 53 forms a shearing end with the jaw portion 511, and one end of the blade 53 has an adjustment groove 531 between the first handle 51 and the second handle 52, wherein the second handle 52 is adjacent to the side of the fulcrum An outwardly protruding drive rod 54 is pivoted, and the drive rod 54 is provided with a sliding contact point 541 pivotally inserted into the adjustment groove 531 of the blade piece 53, and a spring 55 is provided between the first handle 51 and the drive rod 54. When the first handle 51 and the second handle 522 are closed and stretched during the shearing process, the blade 53 will also produce elastic linkage, and the driving rod 54 will be connected between the second handle 52 and the blade 53. An included angle less than 90 degrees is formed between them, so that the sliding contact 541 on the driving rod 54 will be displaced in the adjustment groove 531 on the blade 53, and the interlocking angle of less than 90 degrees is maintained.

When the existing structure is operated, the sliding contact point 541 of the driving rod 54 is located at the first position of the adjustment groove 531, so when the operator presses the first handle 51 and the second handle 52 with force, due to the adjustment groove 531 The relative relationship with the sliding contact point 541 makes the opening formed by the blade piece 53 and the jaw portion 511 only less than half of the total opening, which is equivalent to cutting into about one-third of the object to be cut, and it is impossible to continue applying force. Close the blade 53 and the jaw 511 to achieve the cutting effect, so the operator will first loosen the first grip 51 and the second grip 52, and then press the first grip 51 and the second grip together again 52. At this time, the sliding contact 541 will jump out of the first position and be shifted and locked in the second position. Therefore, when the operator applies pressure to perform the shearing operation again, the object to be sheared can be easily cut with less effort.

Looking at the above-mentioned existing structure in detail, it is not difficult to find that it still has some deficiencies. The main reasons are as follows: although the labor-saving setting of the existing gardening shears can indeed achieve the expected effect, for the operator, its only deficiency In the process of cutting, force must be applied in sections, at least two to four times to cut the object to be cut, and the first grip 51 and the second grip 52 must be slightly relaxed each time the force is applied to allow the object to be cut. Sliding contact 541 does jump out of displacement, and the object to be cut can only be cut by repeating the same action. It not only needs to be cut many times in operation, which is inconvenient to use, but also affects the quality of the object to be cut. The cross-section cannot be straight and straight, so there is still a need to improve the labor-saving gardening shears, and obtain a labor-saving design that is easier to operate.

Utility model content

The technical problem to be solved by the utility model is to provide a labor-saving gardening scissors structure for the above-mentioned deficiencies in the prior art.

A labor-saving gardening scissors structure provided by the utility model includes:

a first handle and a second handle whose front ends are bolted to each other, the front end of the first handle is provided with a knife jaw piece, and a piercing notch is provided on the side adjacent to the knife jaw piece;

A blade piece includes a blade portion and a connecting portion extending from the rear end of the blade portion. An axis hole is provided between the blade portion and the connecting portion, and a positioning perforation is provided at the connecting portion. Pass through the notch of the first handle from bottom to top, and use the shaft hole to pivot with the first handle, so that the opening and closing of the blade part corresponds to the jaw piece, and the connecting part is limited to the first handle between a handle and the second handle;

A drive link, one end of which is movably pivoted to the second handle, and is provided with an abutting portion that limits the drive link in the second handle, and the other end is pivoted to the blade of the blade by a latch Position the perforation so that the maximum deployment angle between the drive link and the second handle is between 120° and 140° limited by the abutment and the blade, and adjacent to the pivot joint between the first handle and the second handle An elastic member is further arranged at the position, and the other end of the elastic member is engaged with the end of the drive link pivotally connected to the second handle.

Wherein, the bottom edge of the blade of the first handle forms a pivoting portion, and the second handle is bolted and connected by the pivoting portion.

Wherein, one end of the driving link is provided with a bolting hole, which is pivotally connected to the second handle with a shaft bolt, and a locking rib is provided at the end for locking and fixing at the other end of the elastic member.

Wherein, the end of the connecting part of the blade has a fastening part, and a buckle part is matched with the second handle, so as to be buckled and fixed when the first handle and the second handle are closed.

Wherein, the gardening scissors are small branch scissors used for one-handed operation.

Wherein, the gardening shears are large-scale branch shears used for two-hand operation.

Compared with the effect of the previous technology: the gardening shears achieve the expansion angle of the drive link by the abutment of the second handle, so that the angle between the drive link and the second handle and the blade is between 120 degrees to 140 degrees The force arm formed between the first handle and the second handle is greater than the resistance arm formed between the blade and the jaw, which can not only greatly improve the transmission of shearing force, but also save labor in use. On the one hand, the knife blade and the knife jaw can achieve a closed cutting effect under the pressing action of the first handle and the second handle at one time.

Description of drawings

Fig. 1 is a perspective view of the utility model.

Fig. 2 is an exploded view of the utility model.

Fig. 3 is a cross-sectional view of the utility model in a closed state.

Fig. 4 is a cross-sectional view of the expanded state of the utility model.

Fig. 5 is a perspective view of another embodiment of the present invention.

Fig. 6 is an exploded view of another embodiment of the present invention.

Fig. 7 is a cross-sectional view of another embodiment of the utility model in a closed state.

Fig. 8 is a cross-sectional view of another embodiment of the utility model in an unfolded state.

Fig. 9 is an exploded view of the existing gardening shears.

Fig. 10 is a cross-sectional view of the closed state of the existing gardening shears.

Fig. 11 is a sectional view of the unfolded state of the existing gardening shears.

Fig. 12 is a sectional view of the multi-segment shearing state of the existing gardening shears.

Explanation of reference signs:

[this utility model]

10 first handle;

11 jaws;

12 piercing slots;

13 Pivotal Department;

14 shaft bolts;

15 elastic members;

20 second handle;

21 fasteners;

22 abutment part;

30 blade blades;

31 blade portion;

32 connecting part;

321 fastening part;

33 shaft holes;

34 positioning perforation;

40 drive linkage;

41 bolting holes;

411 shaft bolt;

42 snap ribs;

43 latch;

A deployment angle;

[existing]

50 garden shears;

51 first grip;

511 jaws;

52 second grip;

53 blades;

531 adjustment groove;

54 drive rod;

541 sliding contact;

55 springs.

detailed description

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the utility model and implement it, but the examples given are not intended to limit the utility model.

First of all, please refer to Figures 1 and 2, a labor-saving gardening shears structure, the gardening shears are small branch shears for one-handed operation, which includes: a first handle 10 and a first handle 10 with front ends bolted together The second handle 20, a blade piece 30 and a driving link 40, wherein, the front end of the first handle 10 is provided with a knife jaw piece 11, and a piercing notch 12 is provided on the side adjacent to the knife jaw piece 11 , and the bottom edge of the blade 11 forms a pivoting portion 13, and the pivoting portion 13 provides the second handle 20 to be bolted and connected, the blade 30 includes a blade portion 31, and a blade extending from the blade portion 31 The connecting portion 32 at the rear end, a shaft hole 33 is provided between the blade portion 31 and the connecting portion 32, and a positioning hole 34 is provided at the connecting portion 32, the blade piece 30 passes the blade portion 31 from bottom to top through the first handle 10 The notch 12 is pierced, and the shaft hole 33 and the first handle 10 are pivoted through a shaft bolt 14, so that the opening and closing of the blade portion 31 corresponds to the jaw piece 11, while the connecting portion 32 limits Between the first handle 10 and the second handle 20, there is a fastening portion 321 at the end of the connecting portion 32, and a buckle 21 is provided on the second handle 20 for the first handle. When the handle 10 and the second handle 20 are closed, they are buckled and fixed. One end of the drive link 40 is provided with a bolt connection hole 41, and is pivotally connected to the second handle 20 with a shaft bolt 411. The end is further provided with a The locking rib 42, and the second handle 20 is provided with an abutting portion 22 that restricts the drive link 40, and the other end of the drive link 40 is pivoted to the location of the blade 30 by a pin 43. The perforation 34 makes the maximum expansion angle between the drive link 40 and the second handle 20 limited by the abutment portion 22 and the blade piece 30 to be between 120 degrees and 140 degrees, and the first handle 10 and the second handle An elastic member 15 is further accommodated at the pivotal position of the handle 20 , and the other end of the elastic member 15 is engaged with the engaging rib 42 of the driving link 40 .

The composition of its structure, see again shown in Fig. 1,2,3,4, this first handle 10 is pivoted with the second handle 20 combination of pivotal part 13, and makes the first handle 10 and the second handle The handle 20 has an opening and closing state. The blade piece 30 protrudes the blade part 31 from the piercing notch 12, and then uses a shaft bolt 14 to penetrate the first handle 10 and the shaft hole 33 of the blade piece 30 to pivotally connect. The drive link 40 is pivotally arranged on the second handle 20 with a pivot hole 41 at one end and a shaft bolt 411, and the other end is connected with a pin 43 and the positioning through hole 34 of the blade 30, and is further connected with the first handle. The handle 10 accommodates an elastic member 15 that is engaged with the locking rib 42 of the driving link 40, so that the jaw piece 11 of the first handle 10 and the blade piece 30 can be stretched and linked to each other by using the elastic piece 15. The rod 40 is unfolded, and the first handle 10 and the second handle 20 are opened for the user to press and cut at the same time, and the abutting portion 22 of the second handle 20 is used to make the driving link 40 and the blade 30 and The maximum unfolding angle A between the second handles 20 is between 120° and 140°, and the above-mentioned structure can complete a labor-saving gardening shears structure.

The state of its structure in actual use is shown in Figures 3 and 4. After the first handle 10 and the second handle 20 are loosened, the gardening shears are stretched outwards through the elastic member 15, and at the same time, they are stretched by the drive connection. The rod 40 pushes outward against the connecting portion 32 of the blade piece 30, so that the blade portion 31 swings away from the blade piece 11 with the shaft bolt 14 as the axis center to form a shear opening state. When the abutment portion 22 of the handle 20 is limited, the maximum expansion angle A between the driving link 40 and the second handle 20 and the blade 30 is between 120 degrees and 140 degrees, and the first handle 10 and the second handle The opening angle of the handle 20 is larger than the cutting opening of the blade portion 31 and the jaw piece 11, and the force arm formed by the first handle 10 and the second handle 20 is greater than the resistance formed between the blade portion 31 and the jaw piece 11. The state of the arm has a relatively labor-saving cutting effect, and the user can complete the cutting at one time, which improves the convenience and practicability of the structure.

Another embodiment of its structure, please refer to shown in Fig. 5 to 8 again, this garden shears is the large-scale branch shears that two-hand operation uses, and it comprises: a first handle 10, a second handle 20, a blade piece 30 is a driving link 40, the first handle 10 is pivotally connected with the second handle 20, and the first handle 10 and the second handle 20 are opened and closed, and the blade 30 is to The blade part 31 protrudes from the piercing notch 12, and then uses a shaft bolt 14 to penetrate the first handle 10 and the shaft hole 33 of the blade piece 30 to pivotally connect. The driving link 40 is matched with the pivot hole 41 at one end A shaft bolt 411 is pivotally arranged on the second handle 20, and the other end is connected with a pin 43 to the positioning hole 34 of the blade 30, so that the first handle 10 and the second handle 20 can move together when they are opened and closed. Drive the connecting rod 40 to open and close and cut, and the maximum expansion angle A between the driving connecting rod 40, the blade piece 30 and the second handle 20 is between 120 degrees and 140 degrees, by the above structure, to complete a Labor-saving gardening shear structure for two-hand operation.

By the structure of the above-mentioned specific embodiment, the following benefits can be obtained: the gardening scissors achieves the enlargement of the stretching angle of the drive link 40 by the abutment portion 22 of the second handle 20, so that the drive link 40 and the second handle The angle between the handle 20 and the blade 30 is between 120 degrees and 140 degrees, so that the force arm formed between the first handle 10 and the second handle 20 is greater than the resistance arm formed between the blade 31 and the jaw 11 , not only can greatly improve the transmission of shearing force, but also can save labor in use. On the other hand, the blade part 31 and the jaw piece 11 can be pressed together by the first handle 10 and the second handle 20 once, It achieves the cutting effect of one-knife closure, the convenience of using the real tool structure, and the improvement of efficacy.

The above-mentioned embodiments are only preferred embodiments for fully illustrating the utility model, and the protection scope of the utility model is not limited thereto. Equivalent substitutions or transformations made by those skilled in the art on the basis of the present utility model are all within the protection scope of the present utility model. The scope of protection of the utility model shall be determined by the claims.

Claims (6)

1. A labor-saving gardening shear structure, characterized in that, comprising: a first handle and a second handle whose front ends are bolted to each other, the front end of the first handle is provided with a knife jaw piece, and a piercing notch is provided on the side adjacent to the knife jaw piece; A blade piece includes a blade portion and a connecting portion extending from the rear end of the blade portion. An axis hole is provided between the blade portion and the connecting portion, and a positioning perforation is provided at the connecting portion. Pass through the notch of the first handle from bottom to top, and use the shaft hole to pivot with the first handle, so that the opening and closing of the blade part corresponds to the jaw piece, and the connecting part is limited to the first handle between a handle and the second handle; A drive link, one end of which is movably pivoted to the second handle, and is provided with an abutting portion that limits the drive link in the second handle, and the other end is pivoted to the blade of the blade by a latch Position the perforation so that the maximum deployment angle between the drive link and the second handle is between 120° and 140° limited by the abutment and the blade, and adjacent to the pivot joint between the first handle and the second handle An elastic member is further arranged at the position, and the other end of the elastic member is engaged with the end of the drive link pivotally connected to the second handle. 2 . The structure of labor-saving gardening shears according to claim 1 , wherein the bottom edge of the blade of the first handle forms a pivoting portion, and the pivoting portion provides a bolted connection to the second handle. 3 . 3. The labor-saving gardening scissors structure according to claim 1, characterized in that, one end of the driving link is provided with a bolt connection hole, and is pivotally connected to the second handle with a shaft bolt, and a clip is provided at the end The catch rib is used for the catch on the other end of the elastic member to be fixed. 4. The labor-saving gardening scissors structure according to claim 1, characterized in that, the end of the connecting portion of the blade has a fastening portion, and a buckle is provided on the second handle for the first handle Snaps in place when closed with second handle. 5. The labor-saving gardening shears structure according to any one of claims 1 to 4, characterized in that, the gardening shears are small branch shears for one-hand operation. 6. The labor-saving gardening shears structure according to any one of claims 1 to 4, characterized in that the gardening shears are large branch shears for two-hand operation.