CN204811161U - telescopic branch shears - Google Patents

Abstract

The utility model discloses a telescopic tree pruner, which comprises a shearing blade component, a fixed handle and a telescopic handle, wherein the fixed handle and the telescopic handle can drive the shearing blade component to do shearing action, the telescopic handle comprises an inner handle and a sliding handle arranged on the inner handle in a sliding way, the fixed handle is connected with the telescopic handle through a connecting rod sliding mechanism, the connecting rod sliding mechanism comprises a connecting rod, one end of the connecting rod is hinged on the fixed handle, the other end of the connecting rod is hinged on the sliding handle, when the handle is opened, the connecting rod drives the sliding handle to slide towards the direction close to the shearing blade component, the length of the telescopic handle is shortened, when the handle is closed, the connecting rod drives the sliding handle to slide towards the direction far away from the shearing blade component, the length of the telescopic handle is gradually increased, so that the shearing moment and the shearing force are gradually increased, the shearing operation radius is far smaller than that of the, but also meets the distribution of the internal shearing resistance of the branches, the shearing effect is better, the labor is saved, and the shearing efficiency is higher.

Description

telescopic branch shears

technical field

The utility model relates to a gardening tool, in particular to a telescopic branch scissors.

Background technique

Branch scissors are usually used for trimming branches in gardens or orchards. They usually include two handles and two cutting edges. The cutting blades are driven by the handles to complete the trimming of branches. In the cutting of thick branches, ordinary branch shears are difficult to meet the cutting needs. To solve this problem, the handle is usually lengthened to increase the torque and increase the shearing force, but the operation of long-handled branch shears is very troublesome. The operating radius is large, it is very inconvenient to use, and the distribution of shear force is also extremely unreasonable.

Contents of the invention

In order to overcome the deficiencies of the prior art, the utility model provides a telescopic branch shears.

The technical scheme that the utility model solves its technical problem adopts is:

Telescopic branch shears, including a cutting blade assembly and a fixed handle capable of driving the cutting blade assembly for cutting action and a telescopic handle, the telescopic handle includes an inner handle and a sliding handle slidably arranged on the inner handle, the fixed handle The connecting rod sliding mechanism is connected with the telescopic handle, and the connecting rod sliding mechanism includes a connecting rod. One end of the connecting rod is hinged on the fixed handle, and the other end is hinged on the sliding handle.

The sliding handle is a tubular structure sheathed on the inner handle.

The front end of the fixed handle is provided with a first hinge seat, the front end of the sliding handle is provided with a second hinge seat, and the two ends of the connecting rod are respectively hinged on the first hinge seat and the second hinge seat.

The cutting blade assembly includes a first cutting blade, a second cutting blade and a connecting arm, the first cutting blade is fixedly arranged at the end of the fixed handle, and the end of the inner handle is connected to the first cutting blade. The middle part of the second cutting edge is hinged to each other, the middle part of the second cutting edge is hinged to the middle part of the first cutting edge, one end of the connecting arm is hinged to the end of the second cutting edge, and the other end is hinged to the inner handle.

The cutting edge of the cutting edge assembly is an arc-shaped edge with concave and convex fit.

The ends of the fixed handle and the telescopic handle are respectively provided with anti-slip sleeves.

The beneficial effect of the utility model is that the telescopic branch shears include a cutting blade assembly and a fixed handle and a telescopic handle capable of driving the cutting blade assembly for shearing action, the telescopic handle includes an inner handle and is slidably arranged on the inner handle The sliding handle, the fixed handle is connected with the telescopic handle through a connecting rod sliding mechanism, the connecting rod sliding mechanism includes a connecting rod, one end of the connecting rod is hinged on the fixed handle, and the other end is hinged on the sliding handle, Since the connecting rod is a fixed-length rod, when the fixed handle and the telescopic handle are opened, the connecting rod drives the sliding handle to slide towards the cutting edge assembly, shortening the length of the telescopic handle, and when the fixed handle and the telescopic handle are closed, the connecting rod drives the sliding The handle slides away from the shearing blade assembly, gradually increasing the length of the telescopic handle, so that the shearing torque and shearing force gradually increase. The cutting radius is much smaller than that of the fixed-handle branch shears, which is very convenient to use and the shearing force The gradual increase not only saves manpower, but also conforms to the distribution of the internal shearing resistance of the branches, resulting in better shearing effect, less labor and higher shearing efficiency.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is the structural representation when the utility model is closed;

Fig. 2 is the structural representation when the utility model is opened;

Fig. 3 is an exploded schematic view of the utility model telescopic handle;

FIG. 4 is a partially enlarged schematic diagram of part A in FIG. 2 .

Detailed ways

With reference to Fig. 1 to Fig. 4, Fig. 1 to Fig. 4 are the structural representations of a specific embodiment of the present utility model, as shown in the figure, telescopic tree branch shears, comprise cutting blade assembly 1 and can drive cutting blade assembly 1 to cut Action fixed handle 2 and telescopic handle 3, the telescopic handle 3 includes an inner handle 31 and a sliding handle 32 slidingly arranged on the inner handle 31, the fixed handle 2 is connected with the telescopic handle 3 through a connecting rod sliding mechanism, The connecting rod sliding mechanism includes a connecting rod 4 , one end of which is hinged on the fixed handle 2 , and the other end is hinged on the sliding handle 32 .

Preferably, the sliding handle 32 is a tubular structure sleeved on the inner handle 31, so that the sliding handle 32 can slide back and forth along the length direction of the inner handle 31; the front end of the fixed handle 2 is provided with a first hinge seat 41, the front end of the sliding handle 32 is provided with a second hinge seat 42, and the two ends of the connecting rod 4 are respectively hinged on the first hinge seat 41 and the second hinge seat 42.

When the fixed handle 2 and the telescopic handle 3 are opened, the connecting rod 4 drives the sliding handle 32 to slide towards the cutting blade assembly 1, shortening the length of the telescopic handle 3, and when the fixed handle 2 and the telescopic handle 3 are closed, the connecting rod 4 drives the sliding The handle 32 slides away from the cutting blade assembly 1, gradually increasing the length of the telescopic handle 3, so that the shearing moment and the shearing force gradually increase, and the cutting radius is much smaller than that of the fixed-handle branch shears, which is very convenient to use, and The gradual increase of the shearing force not only saves manpower, but also conforms to the distribution of the internal shearing resistance of the branches. The shearing effect is better and more labor-saving. The labor-saving effect of later cutting is guaranteed, so the overall cutting speed and cutting efficiency are much higher than traditional long-handled branch shears.

Preferably, the cutting blade assembly 1 adopts a link mechanism, which includes a first cutting blade 11, a second cutting blade 12 and a connecting arm 13, and the first cutting blade 11 is fixedly arranged on a fixed handle 2 ends, the end of the inner handle 31 is hinged to the middle of the first cutting edge 11, the middle of the second cutting edge 12 is hinged to the middle of the first cutting edge 11, and the connecting arm One end of 13 is hinged to the end of the second cutting edge 12, and the other end is hinged to the end of the inner handle 31, and the hinge point of the connecting arm 13 and the end of the inner handle 31 is located at the middle part of the first cutting edge 11 and the inner handle The rear of the hinge point of the 31 end, so that the first cutting edge 11, the second cutting edge 12, the end of the inner handle 31, and the connecting arm 13 form a four-bar linkage structure, so that the first cutting edge 11 and the second The opening angle of the shearing blade 12 is smaller than that of the fixed handle 2 and the telescopic handle 3, which increases the shearing force of the shearing blade assembly 1, saves manpower, and improves the working efficiency of cutting.

Preferably, in this embodiment, the cutting edges of the first cutting edge 11 and the second cutting edge 12 are arc-shaped cutting edges matched with concave and convex, so as to be close to the round bar-shaped branches, and the cuts are smooth, and When shearing, the shearing area of the protruding arc-shaped cutting edge gradually increases, and the shearing resistance also increases accordingly. Cooperating with the telescopic handle 3 whose torque gradually increases in the present utility model, that is, the shearing has just begun When the shearing resistance is small, the length of the telescopic handle 3 is short, the operating radius is short, and the torque is small, which can speed up the shearing speed. When the shearing angle gradually becomes smaller, the shearing area of the protruding arc-shaped cutting edge gradually increases. Resistance increases, and now, telescopic handle 3 length becomes longer, and operating radius increases, and torque increases accordingly, and shearing speed drops, but reaches the effect of saving labor; Through above-mentioned structure, when the utility model is used, shearing speed It is higher than the traditional fixed long-handled branch shears, and the labor-saving effect is roughly the same, which greatly improves the simple efficiency.

Preferably, the ends of the fixed handle 2 and the telescopic handle 3 are respectively provided with anti-slip sleeves 5 to prevent manual slipping and improve the convenience and reliability of use.

The preferred implementation of the present utility model has been specifically described above. Of course, the present utility model can also adopt forms different from the above-mentioned embodiments, and those skilled in the art can make equivalent transformations or modifications without violating the spirit of the present invention. Corresponding changes should all belong to the protection scope of the present utility model.

Claims (6)

1. flexible tree shears, it is characterized in that: comprise shear blade assembly (1) and shear blade assembly (1) can be driven to make fixed handle (2) and the telescoping handle (3) of shear action, described telescoping handle (3) comprises handle in (31) and is slidably arranged in the slip handle (32) on interior handle (31), described fixed handle (2) is connected with telescoping handle (3) by a rod slide mechanism, described rod slide mechanism comprises a connecting rod (4), described connecting rod (4) one end is hinged on fixed handle (2), and its other end is hinged on slip handle (32).

2. flexible tree shears according to claim 1, is characterized in that: described slip handle (32) is for being set in the tubular structure on interior handle (31).

3. flexible tree shears according to claim 1 and 2, it is characterized in that: described fixed handle (2) front end is provided with the first free bearing (41), described slip handle (32) front end is provided with the second free bearing (42), and described connecting rod (4) two ends are hinged on the first free bearing (41), the second free bearing (42) respectively.

4. flexible tree shears according to claim 1, it is characterized in that: described shear blade assembly (1) comprises the first shear blade (11), second shear blade (12) and linking arm (13), described first shear blade (11) is fixedly installed on fixed handle (2) end, the end of described interior handle (31) and the middle part of the first shear blade (11) are hinged, the middle part of described second shear blade (12) and the middle part of the first shear blade (11) are hinged, described linking arm (13) one end is hinged to the end of the second shear blade (12), its other end is hinged on interior handle (31).

5. the flexible tree shears according to claim 1 or 4, is characterized in that: the shearing edge of described shear blade assembly (1) is the curved edge of male-female engagement.

6. flexible tree shears according to claim 1, is characterized in that: described fixed handle (2) and telescoping handle (3) end are respectively arranged with Anti-slip cover (5).