CN219046788U - Single-blade trimmer and control mechanism thereof - Google Patents

Abstract

The utility model provides a single-blade trimmer and a control mechanism thereof, wherein the control mechanism comprises a first handle, and a first mounting cavity is formed in the first handle; a travel switch disposed within the first mounting cavity for controlling a power assembly of the single-blade trimmer; the rotating part of the push switch is rotatably arranged in the first mounting cavity, and the push part extends to the outer side of the first handle; a driving part for controlling the travel switch is arranged on one side of the rotating part, which is close to the travel switch; the pressing switch is provided with a limiting part; a limiting rod is movably arranged on the first handle, at least part of the limiting rod is arranged in the first movable cavity, and a limiting block is arranged on the part of the limiting rod, which is positioned in the first mounting cavity; when the limiting block abuts against the limiting part, the limiting block limits the pressing switch to rotate. Therefore, when the power component is connected with the power source and is electrified, a user cannot press the pressing switch to start the power component to move, so that the safety of the user or other people or objects is ensured. Simple structure and convenient operation for users.

Description

Single-blade trimmer and control mechanism thereof

Technical Field

The present utility model relates to a single-blade trimmer, and more particularly, to a single-blade trimmer and a control mechanism thereof.

Background

Pruning machines, also known as tree pruners, pruning shears, etc., are commonly used to prune trees. The trimmer typically includes a housing, a power assembly within the housing, a cutter connected to the power assembly, a push switch to control the power assembly, and the like. The cutters are generally divided into single cutters with single-side blades and double cutters with double-side blades. After the power assembly is electrified, the trimmer can be started after the push switch is pressed by a user, so that the power assembly and a cutter connected with the power assembly can operate. For example, the dual-purpose pruning machine with the chinese patent application number 201210530063.9 has the disadvantage that after the power assembly is connected with the power source, i.e. the power assembly is electrified, the pressing switch may be touched by a person by mistake to enable the power assembly to operate, so that the cutter moves, and damage may be caused to the person or the object.

Disclosure of Invention

In view of the above, the present utility model is directed to a single-blade trimmer and a control mechanism thereof, which can limit the rotation of a push switch by the limit action of a limit block on a limit part, so as to solve the problem that the push switch may be touched by mistake after the power component of the conventional trimmer is electrified, thereby operating a cutter.

In order to solve the technical problems, the technical scheme of the utility model is as follows:

a control mechanism for a single blade trimmer comprising:

a first handle having a first mounting cavity formed therein;

the travel switch is arranged in the first mounting cavity and is used for connecting and controlling a power assembly of the single-blade trimmer; and

the pressing switch comprises a rotating part and a pressing part, the rotating part is rotatably arranged in the first mounting cavity, and the pressing part extends to the outer side of the first handle; a driving part for controlling the travel switch is arranged on one side of the rotating part, which is close to the travel switch;

the pressing switch is provided with a limiting part; the first handle is movably provided with a limiting rod, at least part of the limiting rod is arranged in the first movable cavity, and a limiting block is arranged at the part of the limiting rod, which is positioned in the first mounting cavity; when the limiting block moves to lean against the limiting part along with the limiting rod, the limiting block limits the rotation of the pressing switch.

Preferably, the first handle is provided with a limiting hole communicated with the first mounting cavity, and the limiting rod is arranged in the limiting hole in a penetrating manner and can linearly move along the axis direction of the limiting hole.

Preferably, the limiting part is arranged on the upper side surface of the push switch, and the limiting part is a protruding block extending upwards; the limiting rod is positioned above the pressing switch, and the limiting block is arranged on the lower peripheral surface of the limiting rod and extends downwards; the shape of the protruding block is matched with that of the limiting block.

Preferably, the shape of the limiting rod and the shape of the limiting hole are polygonal, and the inner wall of the limiting hole limits the rotation of the limiting rod.

Preferably, the end part of the limiting rod is provided with a force application part extending to the outer side of the limiting hole.

Preferably, the gear switch is further included, and the gear switch includes:

the connecting part is positioned in the first mounting cavity and is connected with the power assembly;

one end of the gear shifting part is rotatably arranged in the first mounting cavity, and the other end of the gear shifting part penetrates through the first handle and extends to the outer side of the first handle;

wherein, the connecting portion cooperates with the gear shifting portion for gear shifting of the power assembly.

A single blade trimmer comprising:

a housing having a second mounting cavity formed therein;

a power assembly disposed within the second mounting cavity;

the cutter is arranged on the front side of the shell and is connected with the power assembly; the left side of the cutter is a cutting edge, and the right side is a cutter back;

the control mechanism of the single-blade trimmer is characterized in that the first handle of the control mechanism is arranged at the rear side of the shell, and the first mounting cavity is communicated with the second mounting cavity.

Preferably, a second handle is arranged on the back side of the cutter close to one end of the shell, and a protective cover is arranged at one end of the second handle close to the cutting edge.

Preferably, a baffle is arranged on the back side of the cutter, which is far away from one end of the shell, and one side of the baffle, which is far away from the cutting edge, is bent upwards to extend.

Preferably, a connecting hole communicated with the second mounting cavity is formed in the rear side of the shell, a connecting cylinder is arranged on the first handle, and an opening of the first mounting cavity is formed in the front end of the connecting cylinder; the connecting cylinder is arranged in the connecting hole in a penetrating way; the front end of the connecting cylinder is provided with a clamping ring block, and the clamping ring block abuts against the inner wall of the second mounting cavity to limit the movement of the first handle; the rear side of casing is provided with a plurality of joint groove, be provided with a plurality of joint piece on the connecting cylinder, a plurality of joint piece corresponds the joint and restricts the rotation of first handle on the casing in the joint inslot.

Compared with the prior art, the utility model has the following outstanding and beneficial technical effects:

1. according to the utility model, a user can drive the limiting rod to move, so that the limiting block on the limiting rod is abutted against the limiting part of the push switch, and the rotation limitation of the push switch can be realized through the limiting effect of the limiting block on the limiting part. At this time, even if the power component of the single-blade trimmer is connected with the power source and is electrified, a user cannot press the push switch to start the power component for movement, so that the safety of the user or other people or things is ensured. Simple structure and convenient operation for users.

2. According to the utility model, a user can simply pull the limiting rod to move the limiting block, so that the contact and separation of the limiting block and the limiting part are simply realized, and finally, the limiting function of the push switch is simply opened and closed.

3. The shape of the limiting rod and the shape of the limiting hole are in an adaptive polygon, and the inner wall of the limiting hole can limit the rotation of the limiting rod, so that the stability of the limiting rod in linear movement is ensured.

4. The end part of the limiting rod is provided with the force application part extending to the outer side of the limiting hole, so that a user can apply force to the limiting rod conveniently, and the limiting rod can be driven more effectively.

5. According to the utility model, the gear switch, the travel switch and the pressing switch are arranged in the first mounting cavity of the first handle, the functional switch keys are concentrated on the handle, so that the single-blade trimmer is more convenient for a user, and the structure is more compact, and the occupied space of the single-blade trimmer can be effectively reduced.

6. According to the single-blade trimmer, the two hands of a user can be held through the cooperation of the first handle and the second handle, and the user can use the single-blade trimmer more effort-saving and comfortable. The protective cover shields the chips generated when the cutter shears trees from reducing the possibility of the chips damaging the hands of a user.

7. According to the utility model, the baffle is used for blocking the scraps generated when the cutter shears trees, so that the scraps can only drop from one side of the cutting edge, the scraps are convenient for a user to clean, and the cleanliness of the environment can be improved. Meanwhile, the possibility of damage of scraps to people or objects on one side of the knife back can be reduced through the blocking effect of the baffle plate, and a certain protection effect is achieved.

8. According to the utility model, through the front and rear limiting effect of the clamping ring block on the first handle, the left and right limiting effect of the connecting hole on the first handle and the rotating limiting effect of the clamping groove and the clamping block on the first handle on the shell, the complete fixation of the first handle when the first handle is mounted on the shell is realized, and the stability of the first handle when the first handle is mounted on the shell is ensured.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment;

FIG. 2 is a schematic view of the internal structure of the first handle;

FIG. 3 is a schematic view of a portion of the control mechanism;

fig. 4 is a schematic view of the internal structure of the housing.

Reference numerals: 1. a housing; 11. a second mounting cavity; 12. a connection hole; 13. a clamping groove;

2. a power assembly; 3. a cutter;

4. a control mechanism; 41. a first handle; 411. a first mounting cavity; 412. a limiting hole; 413. a connecting cylinder; 414. the clamping ring block; 415. a clamping block; 42. a travel switch; 43. pressing the switch; 431. a rotating part; 432. a pressing part; 433. a driving section; 434. a limit part; 44. a limit rod; 441. a force application part; 45. a limiting block; 46. a gear switch; 461. a connection part; 462. a shift section;

5. a second handle; 6. a protective cover; 7. and a baffle.

Detailed Description

The following detailed description of the utility model is provided in connection with the accompanying drawings to facilitate understanding and grasping of the technical scheme of the utility model.

As shown in fig. 1-4, a single blade trimmer includes a housing 1, a power assembly 2, a cutter 3, and a control mechanism 4. A second mounting cavity 11 is formed in the housing 1. The power assembly 2 is disposed in the second mounting cavity 11, and the power assembly 2 is usually driven by other structures, such as the cutter 3, through cooperation of components such as a motor, a gear, a rotating shaft, and a crankshaft. The specific structure of the power assembly 2 is prior art and this embodiment is not described in detail. The cutter 3 is arranged at the front side of the shell 1 and is connected with the power assembly 2, and the power assembly 2 drives the cutter 3 to move so as to realize the trimming function of the trimmer. The cutter 3 has a single-blade structure, that is, only one side has a blade, and in this embodiment, the left side of the cutter 3 is a blade, and the right side is a back. A control mechanism 4 is provided at the rear side of the housing 1 for controlling the power assembly 2 and thus the movement of the tool 3.

As shown in fig. 2 and 3, the control mechanism 4 of the single blade trimmer includes a first handle 41, a travel switch 42, and a push switch 43. The first handle 41 is arranged at the rear side of the shell 1, a first mounting cavity 411 is formed in the first handle 41, and the first mounting cavity 411 is communicated with the second mounting cavity 11, so that the parts of the control mechanism 4 in the first mounting cavity 411 are conveniently connected with a power mechanism in the second mounting cavity 11 through a connecting device such as a wire. The travel switch 42 is arranged in the first mounting cavity 411 and is connected to the power assembly 2 of the single-blade trimmer, and the travel switch 42 is used for controlling the power assembly 2 and thus the cutter 3. The push switch 43 includes a rotating portion 431 and a pushing portion 432, the rotating portion 431 is rotatably disposed in the first mounting cavity 411, the pushing portion 432 extends to the outside of the first handle 41, and a driving portion 433 for controlling the travel switch 42 is disposed on a side of the rotating portion 431 close to the travel switch 42. Therefore, the user can drive the rotating portion 431 to rotate only by pressing the pressing portion 432 of the first handle 41, and the driving portion 433 further rotates along with the rotating portion 431, so that the starting switch of the travel switch 42 can be directly forced or acted, and starting and closing of the power assembly 2 can be realized.

Referring to fig. 2 and 3, in the present embodiment, a limit portion 434 is disposed on the push switch 43; a limiting rod 44 is movably arranged on the first handle 41, the limiting rod 44 is at least partially arranged in the first movable cavity, and a limiting block 45 is arranged on the part of the limiting rod 44 positioned in the first mounting cavity 411; when the stopper 45 moves with the stopper rod 44 to abut on the stopper portion 434, the stopper 45 restricts the rotation of the push switch 43.

After the power assembly 2 is connected with the power source, the conventional trimmer may be mistakenly touched by a person to operate the power assembly 2, so that the cutter 3 moves to cause damage to the person or the person. In this embodiment, the user can drive the stop lever 44 to move, so that the stop block 45 on the stop lever 44 abuts against the stop portion 434 of the push switch 43, and the rotation limitation of the push switch 43 can be achieved through the stop action of the stop block 45 on the stop portion 434. At this time, even if the power unit 2 of the single-blade trimmer is connected to the power source and is energized, the user cannot press the push switch 43 to start the power unit 2, so that the safety of the user or other people or things is ensured. Simple structure and convenient operation for users.

Further, the stop lever 44 may be rotatably disposed on the first handle 41, or may be disposed on the first handle 41 in a linear motion, and the stop lever 45 on the stop lever 44 may be moved, so as to be effectively in contact with and separated from the stop portion 434. Referring to fig. 1, 2 and 4, in this embodiment, a limiting hole 412 communicating with the first mounting cavity 411 is preferably formed in the first handle 41, and the limiting rod 44 is disposed in the limiting hole 412 in a penetrating manner and can move linearly along the axial direction of the limiting hole 412. Therefore, a user can simply pull the limiting rod 44 to move the limiting block 45, so that the contact and separation of the limiting block 45 and the limiting part 434 are simply realized, and finally, the limiting function of the pressing switch 43 is simply opened and closed.

Further, the limit lever 44 and the limit portion 434 may be disposed on one side of the push switch 43, or may be disposed on the upper side of the push switch 43, and the limit lever 44 and the limit portion 434 may cooperate to limit rotation of the push switch 43. Referring to fig. 2 and 3, in this embodiment, the limit portion 434 is preferably disposed on the upper side of the push switch 43, and the limit portion 434 is an upwardly extending bump; the stopper rod 44 is located above the push switch 43, and a stopper 45 is provided on the lower side peripheral surface of the stopper rod 44 and extends downward; the shape of the protruding block is matched with that of the limiting block 45. Thereby improving the adaptability between the limit rod 44 and the limit part 434, enabling the limit rod 44 and the limit part 434 to be easily contacted and more stable when being abutted together.

Further, referring to fig. 1, 2 and 4, the shapes of the limiting rod 44 and the limiting hole 412 are preferably polygonal, so that the inner wall of the limiting hole 412 can limit the rotation of the limiting rod 44 and ensure the stability of the limiting rod 44 during linear movement while ensuring the attractive appearance.

Referring to fig. 1 to 4, the end of the stop lever 44 is provided with a force application portion 441 extending to the outside of the stop hole 412, so that a user can apply force to the stop lever 44 conveniently, and the stop lever 44 can be driven more effectively.

Further, in conjunction with fig. 1-3, the control assembly may further provide a gear switch 46, where the gear switch 46 includes a connecting portion 461 and a gear shifting portion 462. The connecting portion 461 is located in the first mounting chamber 411 and is connected to the power pack 2. One end of the shift portion 462 is rotatably disposed in the first mounting cavity 411, and the other end extends to the outside of the first handle 41 through the first handle 41, so that a user can apply force to the shift portion 462, and rotate the shift portion 462 to change the shift position. The connection portion 461 and the shift portion 462 cooperate to effect a power change, i.e., shift, of the power pack 2 through the action of the associated circuit components. So that the tool 3 to which the power assembly 2 is connected can be operated at different gear speeds. The connection structure of the circuit component is not described in detail in this embodiment in the prior art. In this embodiment, the gear switch 46, the travel switch 42 and the push switch 43 are all disposed in the first mounting cavity 411 of the first handle 41, and the function switch keys are all centralized on the handle, so that the user is more convenient, the structure is more compact, and the occupied space of the single-blade trimmer can be effectively reduced.

Further, as shown in fig. 1, the cutter 3 is provided with a second handle 5 on the back side of one end close to the casing 1, and the user can hold with both hands through the cooperation of the first handle 41 and the second handle 5, so that the user can use the single-blade trimmer more effort-saving and comfortable. The end of the second handle 5 near the blade is provided with a protective cover 6. Thereby shielding the cutter 3 from debris generated when pruning trees by the protective cover 6 and reducing the possibility of damage to the hands of a user.

As shown in fig. 1, a baffle 7 is provided on the back side of the end of the cutter 3 away from the housing 1, and the side of the baffle 7 away from the blade is bent upward to extend. Therefore, the baffle 7 is used for blocking the scraps generated when the cutter 3 trims trees, so that the scraps can only fall from one side of the cutting edge, the cleaning of a user is convenient, and the cleanliness of the environment can be improved. Meanwhile, the possibility of damage of scraps to people or objects on one side of the knife back can be reduced through the blocking effect of the baffle 7, and a certain protection effect is achieved.

Further, as shown in fig. 4, a connecting hole 12 for communicating with the second installation cavity 11 is formed on the rear side of the housing 1, a connecting cylinder 413 is arranged on the first handle 41, and an opening of the first installation cavity 411 is arranged at the front end of the connecting cylinder 413; the connecting cylinder 413 is penetrated in the connecting hole 12; the front end of the connecting cylinder 413 is provided with a clamping ring block 414, and the clamping ring block 414 abuts against the inner wall of the second mounting cavity 11 to limit the movement of the first handle 41; the rear side of the shell 1 is provided with a plurality of clamping grooves 13, the connecting barrel 413 is provided with a plurality of clamping blocks 415, and the clamping blocks 415 are correspondingly clamped in the clamping grooves 13 to limit the rotation of the first handle 41 on the shell 1. Therefore, through the front and rear limiting action of the clamping ring block 414 on the first handle 41, the left and right limiting action of the connecting hole 12 on the first handle 41 and the rotating limiting action of the clamping groove 13 and the clamping block 415 on the first handle 41 on the shell 1, the complete fixation of the first handle 41 when the first handle 41 is mounted on the shell 1 is realized, and the stability of the first handle 41 when the first handle 41 is mounted on the shell 1 is ensured.

Further, an elastic member may be further disposed in the first mounting cavity 411, where the elastic member is connected to the pressing portion 432 of the pressing switch 43, and the elastic member is compressed or stretched along with the swing of the pressing portion 432 of the pressing switch 43, so that the elastic member drives the pressing switch 43 to return by the resilience force of the elastic member.

Of course, the above is only a typical example of the utility model, and other embodiments of the utility model are also possible, and all technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of the utility model claimed.

Claims (10)

1. A control mechanism of a single-blade trimmer comprises

A first handle (41) having a first mounting cavity (411) formed therein;

a travel switch (42) disposed within the first mounting cavity (411) and adapted to connect to and control a power assembly (2) of a single blade trimmer; and

a push switch (43) including a rotation part (431) and a push part (432), wherein the rotation part (431) is rotatably arranged in the first mounting cavity (411), and the push part (432) extends to the outer side of the first handle (41); a driving part (433) for controlling the travel switch (42) is arranged on one side of the rotating part (431) close to the travel switch (42);

the push switch is characterized in that a limit part (434) is arranged on the push switch (43); a limiting rod (44) is movably arranged on the first handle (41), at least part of the limiting rod (44) is arranged in the first movable cavity, and a limiting block (45) is arranged at the part of the limiting rod (44) positioned in the first mounting cavity (411); when the stopper (45) moves along with the stopper rod (44) to abut against the stopper portion (434), the stopper (45) restricts the rotation of the push switch (43).

2. The control mechanism of a single blade trimmer of claim 1, wherein: the first handle (41) is provided with a limiting hole (412) communicated with the first mounting cavity (411), and the limiting rod (44) is arranged in the limiting hole (412) in a penetrating mode and can move linearly along the axis direction of the limiting hole (412).

3. The control mechanism of a single blade trimmer as defined in claim 2 wherein: the limiting part (434) is arranged on the upper side surface of the push switch (43), and the limiting part (434) is a protruding block extending upwards; the limiting rod (44) is positioned above the pressing switch (43), and the limiting block (45) is arranged on the lower peripheral surface of the limiting rod (44) and extends downwards; the shape of the protruding block is matched with that of the limiting block (45).

4. A control mechanism for a single blade trimmer as defined in claim 3 wherein: the shape of the limiting rod (44) and the shape of the limiting hole (412) are polygonal, and the inner wall of the limiting hole (412) limits the rotation of the limiting rod (44).

5. The control mechanism of a single blade trimmer as defined in claim 2 wherein: the end of the limit rod (44) is provided with a force application part (441) extending to the outer side of the limit hole (412).

6. A control mechanism for a single blade trimmer as defined in any one of claims 1-5 wherein: further comprising a gear switch (46), the gear switch (46) comprising:

a connection part (461) which is positioned in the first mounting cavity (411) and is connected with the power assembly (2);

a shift portion (462) having one end rotatably provided in the first mounting chamber (411) and the other end extending to the outside of the first handle (41) through the first handle (41);

wherein the connecting part (461) is matched with the shifting part (462) for shifting the power assembly (2).

7. A single blade trimmer comprising:

a housing (1) in which a second installation cavity (11) is formed;

-a power assembly (2) arranged within the second mounting cavity (11);

a cutter (3) which is arranged on the front side of the shell (1) and is connected with the power assembly (2); the left side of the cutter (3) is a cutting edge, and the right side is a cutter back;

the method is characterized in that: further comprising a control mechanism (4) of a single blade trimmer according to any of the claims 1-6, the first handle (41) of the control mechanism (4) being arranged at the rear side of the housing (1) and the first mounting cavity (411) being in communication with the second mounting cavity (11).

8. The single blade trimmer of claim 7, wherein: a second handle (5) is arranged on the back side of one end, close to the shell (1), of the cutter (3), and a protective cover (6) is arranged at one end, close to the cutting edge, of the second handle (5).

9. The single blade trimmer of claim 7 or 8, characterized in that: a baffle (7) is arranged on the back side of one end, far away from the shell (1), of the cutter (3), and one side, far away from the cutting edge, of the baffle (7) is bent upwards to extend.

10. The single blade trimmer of claim 7, wherein: the rear side of the shell (1) is provided with a connecting hole (12) communicated with a second mounting cavity (11), the first handle (41) is provided with a connecting cylinder (413), and an opening of the first mounting cavity (411) is arranged at the front end of the connecting cylinder (413); the connecting cylinder (413) is arranged in the connecting hole (12) in a penetrating way; the front end of the connecting cylinder (413) is provided with a clamping ring block (414), and the clamping ring block (414) abuts against the inner wall of the second mounting cavity (11) to limit the movement of the first handle (41); the rear side of casing (1) is provided with a plurality of joint groove (13), be provided with a plurality of joint piece (415) on connecting cylinder (413), a plurality of joint piece (415) correspond the joint and restrict the rotation of first handle (41) on casing (1) in joint groove (13).

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