CN217088746U

CN217088746U - Telescopic high-rod electric scissors

Info

Publication number: CN217088746U
Application number: CN202122799619.1U
Authority: CN
Inventors: 李钢; 方进
Original assignee: Suzhou Jinshan Electric Tool Co ltd
Current assignee: Suzhou Jinshan Electric Tool Co ltd
Priority date: 2021-11-16
Filing date: 2021-11-16
Publication date: 2022-08-02
Anticipated expiration: 2031-11-16

Abstract

The utility model discloses a scalable high pole electric scissors relates to electric tool technical field, and its technical scheme main points are: including shearing the subassembly, moment transmission mechanism, control the casing about, the control panel of setting in controlling the casing, a battery, including a motor, an end cap, a controller, and a cover plate, the speed reducer of being connected with the output of motor, the straight reciprocating motion mechanism of being connected with the output of speed reducer and the trigger that is used for controlling the reciprocating motion of straight reciprocating motion mechanism of setting on controlling the casing, still include the flexible outer tube of mutual telescopic and flexible inner tube, shearing the subassembly and controlling the casing and setting up respectively at the tip of flexible outer tube and flexible inner tube, moment transmission mechanism's input and output are connected with straight reciprocating motion mechanism and shearing subassembly transmission respectively. The utility model discloses a straight reciprocating motion mechanism makes up with telescopic moment transmission mechanism, grips the position with the motor drive part design at the staff, has alleviateed operating personnel's working strength greatly.

Description

Telescopic high-rod electric scissors

Technical Field

The utility model relates to an electric tool technical field, more specifically say, it relates to a scalable high pole electric shears.

Background

Most of high-pole electric scissors in the current market achieve high-altitude operation by adding extension rods on the basis of handheld electric scissors. In the high-rod electric scissors, the motor transmission part is in the working head position, so that the gravity center of the whole machine is far away from an operator, the operator needs to provide torque generated by multiplying the weight of the motor transmission part by the length of the high rod by two hands to operate, and the operation is laborious and not well controlled.

Therefore, a new solution is needed to solve this problem.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a scalable high pole electric shears makes up through straight reciprocating motion mechanism and telescopic moment transmission mechanism, grips the position with the motor drive part design at the staff, has alleviateed operating personnel's working strength greatly.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a scalable high-Pole electric scissors, includes shearing subassembly, moment transmission mechanism, controls casing, setting control panel, battery, motor in controlling the casing, the speed reducer of being connected with the output of motor, the straight reciprocating motion mechanism of being connected with the output of speed reducer and set up the trigger that is used for controlling straight reciprocating motion mechanism reciprocating motion about on the casing, battery, motor and trigger respectively with control panel electric connection, still include the flexible outer tube of mutual telescopic and flexible inner tube, the shearing subassembly sets up the tip at flexible outer tube and flexible inner tube respectively with controlling the casing, moment transmission mechanism's input and output are connected with straight reciprocating motion mechanism and shearing subassembly transmission respectively.

In one embodiment, the linear reciprocating mechanism comprises a screw rod, a screw rod limiting sleeve for limiting the circumferential rotation of the screw rod and an internal thread sleeve with a flange plate, the telescopic inner pipe is fixedly connected with the left shell and the right shell through a supporting flange, one end of the internal thread sleeve close to the flange plate is rotatably connected with the supporting flange through a bearing, one end of the internal thread sleeve, which is far away from the flange plate, is fixedly connected with the output end of the speed reducer, the screw rod limiting sleeve is fixed on the inner side wall of the telescopic inner pipe, the screw rod limiting sleeve is provided with a sliding groove, the screw rod comprises a thread part and a long rod part matched with the sliding groove, the long rod part is connected in the sliding groove in a sliding mode, the thread part is connected in the internal thread sleeve in a threaded mode, the cross section of the long rod part is non-circular, and an induction component for inducing the movement position of the screw and triggering the reciprocating motion of the screw is arranged between the screw limiting sleeve and the long rod part.

In one embodiment, the sensing assembly comprises a limit switch with two contacts and a trigger structure, wherein the limit switch is arranged on the screw rod limit sleeve, and the trigger structure is arranged on the long rod part and is used for respectively triggering the two contacts to act.

In one embodiment, the torque transmission mechanism includes a housing slidably disposed in the outer telescopic tube or the inner telescopic tube, a cover fixedly connected to the housing, a locking block disposed in the housing, and an active straight rod and a passive straight rod penetrating through the locking block for implementing stretching and torque transmission, wherein ends of the active straight rod and the passive straight rod, which are away from the locking block, are respectively in transmission connection with the long rod portion and the shearing assembly of the screw, through holes through which the active straight rod and the passive straight rod respectively pass are disposed on the locking block, a limiting structure having a diameter larger than that of the through holes is disposed at an end portion of the active straight rod, gaps are disposed between the through holes and the active straight rod and the passive straight rod, the locking block can be swung and locked on the active straight rod and the passive straight rod, and an elastic element is further disposed between the housing and the locking block.

In one embodiment, a supporting point is arranged on the shell at one side of the locking block, and the supporting point can provide supporting force for the locking block.

In one embodiment, the supporting point is arranged on the side far away from the through hole where the passive straight rod is located, and the supporting point can be a protruding rib or a pin.

In one embodiment, the number of the elastic elements is two, the two elastic elements are respectively sleeved on the active straight rod and the passive straight rod, and the two elastic elements are respectively located at two sides of the lock block.

In one embodiment, the shearing assembly comprises a fixed knife fixed on the telescopic outer tube, a movable knife rotationally connected to the fixed knife through a first rotating shaft, and a return spring arranged between the movable knife and the fixed knife to keep the movable knife and the fixed knife in an open state, and the driven straight rod is hinged with the movable knife.

To sum up, the utility model discloses following beneficial effect has: during operation, the linear reciprocating mechanism and the telescopic torque transmission mechanism are combined, and the motor transmission part is designed at the hand holding position, so that the working strength of operators is greatly reduced.

Drawings

Fig. 1 is a schematic structural view of a pair of telescopic high-pole electric scissors according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a linear reciprocating mechanism in the structure of the telescopic high-pole electric scissors according to the embodiment of the present application;

FIG. 3 is a schematic view of the structure of the bearings in the structure of the telescopic high-bar electric shears according to the embodiment of the present application;

FIG. 4 is a schematic structural view of a sensing assembly in the structure of a pair of retractable high-pole electric shears according to an embodiment of the present application;

FIG. 5 is a schematic structural diagram of a torque transmission mechanism in the construction of a pair of retractable high-pole electric shears according to an embodiment of the present application;

FIG. 6 is a schematic view of the natural state of the torque transmission mechanism in the construction of the telescopic high-pole electric shears of the embodiments of the present application;

fig. 7 is a schematic view showing a state in which a lock block of a torque transmission mechanism is inclined in the structure of the retractable high-pole electric scissors according to the embodiment of the present application.

In the figure: 1. a shearing assembly; 101. fixing a cutter; 102. a first rotating shaft; 103. moving a knife; 104. a spring; 2. a torque transfer mechanism; 21. a housing; 22. a cover body; 23. a locking block; 24. an active straight rod; 25. a passive straight rod; 26. a support point; 27. an elastic element; 3. a telescopic outer tube; 4. an inner telescopic pipe; 5. a left and a right housing; 6. a battery; 7. a motor; 8. a speed reducer; 9. a linear reciprocating mechanism; 91. a screw rod limiting sleeve; 92. a screw; 93. an internal thread sleeve; 10. a trigger; 11. a bearing; 12. an inductive component; 121. a limit switch; 122. a trigger structure.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1, an embodiment of the present application provides a pair of telescopic high-pole electric scissors, comprising a cutting assembly 1, a torque transmission mechanism 2, left and right housings 5, a control board arranged in the left and right housings 5, a battery 6, a motor 7, a speed reducer 8 connected with an output end of the motor 7, a linear reciprocating mechanism 9 connected with an output end of the speed reducer 8, and a trigger 10 arranged on the left and right housings 5 for controlling the reciprocating motion of the linear reciprocating mechanism 9. The battery 6, the motor 7 and the trigger 10 are respectively electrically connected with the control board. Also comprises a telescopic outer tube 3 and a telescopic inner tube 4 which can mutually telescope. The shearing assembly 1 and the left and right shells 5 are respectively arranged at the end parts of the telescopic outer pipe 3 and the telescopic inner pipe 4, and the input end and the output end of the torque transmission mechanism 2 are respectively in transmission connection with the linear reciprocating mechanism 9 and the shearing assembly 1.

When the electric scissors work, the telescopic outer tube 3 and the telescopic inner tube 4 are adjusted to the required length, the trigger 10 is triggered, the linear reciprocating mechanism 9 converts the circular motion of the motor 7 into reciprocating linear motion, and the torque is transmitted to the shearing assembly 1 through the torque transmission mechanism 2, so that the shearing of objects is realized.

In the mode, the linear reciprocating mechanism 9 is combined with the telescopic torque transmission mechanism 2, and the transmission part of the motor 7 is designed at the hand holding position, so that the working strength of operators is greatly reduced.

On the basis of the above, as shown in fig. 2 and 3, the linear reciprocating mechanism 9 includes a screw 92, a screw stopper 91 for restricting circumferential rotation of the screw 92, and an internally threaded sleeve 93 having a flange. The telescopic inner pipe 4 is fixedly connected with the left shell 5 and the right shell 5 through a supporting flange, and one end, close to the flange plate, of the inner thread sleeve 93 is rotatably connected to the supporting flange through a bearing 11. The one end that the ring flange was kept away from to internal thread cover 93 and speed reducer 8's output fixed connection, screw rod stop collar 91 is fixed on the inside wall of flexible inner tube 4, be provided with the spout on the screw rod stop collar 91, screw rod 92 include screw thread portion and with the long pole portion of spout adaptation, long pole portion sliding connection is in the spout, screw thread portion threaded connection is in internal thread cover 93. The cross section of the long rod part is non-circular, and a sensing component 12 for sensing the movement position of the screw 92 and triggering the reciprocating movement of the screw is arranged between the screw limiting sleeve 91 and the long rod part.

It should be noted that the linear reciprocating mechanism 9 is not limited to the above structure, and may be a ball screw transmission pair, a crank link pair, or the like.

Above-mentioned mechanism during operation, through the setting of screw rod stop collar 91, when motor 7 drive internal thread cover 93 rotates, screw rod 92's stock portion can slide in screw rod stop collar 91's spout, and set up stock portion into the non-circular, during the slip, circumferential direction can not take place for stock portion, thereby the turning moment with motor 7 has been transformed into linear moment, and response subassembly 12 and control panel electric connection, the motion position of response subassembly 12 discernment stock portion sends the electric signal and gives the control panel, control panel control motor 7 is just reversing, thereby realize the straight reciprocating motion of stock portion.

The mode has the advantages of simple structure, small motion amplitude and high stability.

On the basis of the above, as shown in fig. 4, the sensing assembly 12 includes a limit switch 121 having two contacts and disposed on the screw rod limiting sleeve 91, and a trigger structure 122 disposed on the long rod portion for respectively triggering the two contacts.

Specifically, the long rod is provided with a mounting groove, the triggering structure 122 is mounted in the mounting groove, wherein the limit switch 121 may be a common travel switch or a hall sensor for sensing a change in a magnetic field, and the triggering structure 122 may be a protrusion adapted to the travel switch or a magnet adapted to the hall sensor.

During operation, when the trigger structure 122 on the right conflicts the contact on the left of the limit switch 121, the long rod part stops moving leftwards and moves rightwards, and when the trigger structure 122 on the left conflicts the contact on the right of the limit switch 121, the long rod part stops moving and moves leftwards again, so that the reciprocating motion is realized in a circulating manner

On the basis, as shown in fig. 5 to 7, the torque transmission mechanism 2 includes a housing 21 slidably disposed in the telescopic outer tube 3 or the telescopic inner tube 4, a cover 22 fixedly connected to the housing 21, a lock block 23 disposed in the housing 21, and an active straight rod 24 and a passive straight rod 25 penetrating through the lock block 23 for achieving the stretching and transmitting the torque. The end, far away from the locking block 23, of each of the driving straight rod 24 and the driven straight rod 25 is in transmission connection with the long rod part of the screw 92 and the shearing assembly 1, through holes for the driving straight rod 24 and the driven straight rod 25 to pass through are formed in the locking block 23, a limiting structure with a diameter larger than that of each through hole is arranged at the end part of the driving straight rod 24, a gap is formed between each through hole and the driving straight rod 24 and the driven straight rod 25, the locking block 23 can be deflected and locked on the driving straight rod 24 and the driven straight rod 25 through the gap, and an elastic element 27 is further arranged between the shell 21 and the locking block 23.

It should be noted that, in operation, the position of the housing 21 is not fixed, and it can be located in the telescopic inner tube 4 or the telescopic outer tube 3 with the adjustment of the telescopic outer tube 3 and the telescopic inner tube 4.

When the length of the telescopic outer pipe 3 and the telescopic inner pipe 4 needs to be adjusted, the locking block 23 does not deflect, the locking block 23 does not lock the active straight rod 24 and the passive straight rod 25, thereby being convenient for the telescopic adjustment of the telescopic inner tube 4 and the telescopic outer tube 3, when an object needs to be cut, the trigger 10 is pulled, the force F is acted on the driving straight rod 24, when the limit structure on the active straight rod 24 abuts against the locking block 23, the locking block 23 deflects, when the deflection angle of the locking block 23 reaches alpha, a force f is generated between the passive straight rod 25 and the locking block 23, so that the passive straight rod 25 is locked in the locking block 23, thereby transmitting the linear moment on the linear reciprocating mechanism 9 to the shearing component 1 to realize the shearing of the object, through the arrangement of the elastic element 27, when the linear reciprocating mechanism 9 is retracted, the driving straight rod 24 is reset, and the locking block 23 and the driven straight rod 25 are reset accordingly.

In such a way, the active straight rod 24 and the passive straight rod 25 are not easy to damage, and the strength of the active straight rod 24 and the passive straight rod 25 is improved.

On the basis of the above, a supporting point 26 is disposed on one side of the lock block 23 of the housing 21, and the supporting point 26 can provide a supporting force for the lock block 23.

Specifically, the supporting points 26, the limiting structure and the housing 21 form a limiting support for the locking block 23, so that the locking block 23 can deflect in a preset direction, and thus the locking and unlocking of the active straight rod 24 and the passive straight rod 25 can be realized.

On the basis of the above, the supporting point 26 is arranged on the side far away from the through hole where the passive straight rod 25 is located, and the supporting point 26 may be a protruding rib or a pin.

It should be noted that the support points 26 are not limited to the above-mentioned positions, and may be provided on the housing 21 between the two through holes.

On the basis, the number of the elastic elements 27 is two, the two elastic elements 27 are respectively sleeved on the driving straight rod 24 and the driven straight rod 25, and the two elastic elements 27 are respectively located at two sides of the lock block 23.

Specifically, the elastic element 27 may be two springs 104, which may be respectively supported on two sides of the locking block 23, so that the accuracy of the resetting and aligning of the locking block 23 may be improved when the locking block is reset.

On the basis, as shown in fig. 1, the shearing assembly 1 includes a fixed knife 101 fixed on the telescopic outer tube 3, a movable knife 103 rotatably connected to the fixed knife 101 through a first rotating shaft 102, and a return spring 104 disposed between the movable knife 103 and the fixed knife 101 to keep the movable knife 103 and the fixed knife 101 in an open state, and the driven straight rod 25 is hinged to the movable knife 103.

When the shearing machine works, when a reciprocating linear motion moment is applied to the driven straight rod 25, the movable knife 103 rotates around the first rotating shaft 102, so that the movable knife 103 and the fixed knife 101 are alternately opened and closed, and the shearing of an object is realized through the opening and closing of the movable knife 103 and the fixed knife 101.

In this way, the structure of the cutting assembly 1 is simplified, so that the cutting assembly 1 is lighter.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a scalable high pole electric scissors which characterized in that: comprises a shearing assembly (1), a torque transmission mechanism (2), a left shell and a right shell (5), a control panel arranged in the left shell and the right shell (5), a battery (6), a motor (7), a speed reducer (8) connected with the output end of the motor (7), a linear reciprocating mechanism (9) connected with the output end of the speed reducer (8) and a trigger (10) arranged on the left shell and the right shell (5) and used for controlling the linear reciprocating mechanism (9) to reciprocate, the battery (6), the motor (7) and the trigger (10) are respectively electrically connected with the control panel, and also comprise a telescopic outer tube (3) and a telescopic inner tube (4) which can mutually stretch, the shearing assembly (1) and the left and right shells (5) are respectively arranged at the end parts of the telescopic outer pipe (3) and the telescopic inner pipe (4), the input end and the output end of the torque transmission mechanism (2) are respectively in transmission connection with the linear reciprocating mechanism (9) and the shearing assembly (1).

2. The retractable high pole electric shears of claim 1, wherein: the linear reciprocating mechanism (9) comprises a screw rod (92), a screw rod limiting sleeve (91) used for limiting circumferential rotation of the screw rod (92) and an internal thread sleeve (93) with a flange plate, the telescopic inner tube (4) is fixedly connected with the left and right shells (5) through a supporting flange, one end, close to the flange plate, of the internal thread sleeve (93) is rotatably connected to the supporting flange through a bearing (11), one end, far away from the flange plate, of the internal thread sleeve (93) is fixedly connected with the output end of the speed reducer (8), the screw rod limiting sleeve (91) is fixed on the inner side wall of the telescopic inner tube (4), a sliding groove is formed in the screw rod limiting sleeve (91), the screw rod (92) comprises a thread part and a long rod part matched with the sliding groove, the long rod part is slidably connected in the sliding groove, the thread part is connected in the internal thread sleeve (93), and the cross section of the long rod part is non-circular, and an induction component (12) used for inducing the movement position of the screw (92) and triggering the reciprocating movement of the screw is arranged between the screw limiting sleeve (91) and the long rod part.

3. The retractable high pole electric shears of claim 2, wherein: the induction component (12) comprises a limit switch (121) which is arranged on the screw rod limit sleeve (91) and is provided with two contacts, and a trigger structure (122) which is arranged on the long rod part and is used for triggering the two contacts to act respectively.

4. The retractable high pole electric shears of claim 2, wherein: the moment transmission mechanism (2) comprises a shell (21) which is arranged in a telescopic outer pipe (3) or a telescopic inner pipe (4) in a sliding manner, a cover body (22) which is fixedly connected with the shell (21), a locking block (23) which is arranged in the shell (21), and an active straight rod (24) and a passive straight rod (25) which penetrate through the locking block (23) and are used for realizing the stretching and the moment transmission, wherein one ends of the active straight rod (24) and the passive straight rod (25) far away from the locking block (23) are respectively in transmission connection with a long rod part of a screw (92) and a shearing assembly (1), the locking block (23) is provided with through holes through which the active straight rod (24) and the passive straight rod (25) penetrate, the end part of the active straight rod (24) is provided with a limiting structure with the diameter larger than that of the through holes, gaps are formed between the through holes and the active straight rod (24) and the passive straight rod (25), and the locking block (23) can swing and be locked on the active straight rod (24) and the passive straight rod (25) in a manner through holes, an elastic element (27) is further arranged between the shell (21) and the locking block (23).

5. The retractable high pole electric shears of claim 4, wherein: a supporting point (26) is arranged on one side of the lock block (23) on the shell (21), and the supporting point (26) can provide supporting force for the lock block (23).

6. The retractable high pole electric shears of claim 5, wherein: the supporting points (26) are arranged on one side of the through hole away from the passive straight rod (25), and the supporting points (26) can be convex ribs or pins.

7. The retractable high pole electric shears of claim 4, wherein: the number of the elastic elements (27) is two, the two elastic elements (27) are respectively sleeved on the driving straight rod (24) and the driven straight rod (25), and the two elastic elements (27) are respectively located on two sides of the locking block (23).

8. The retractable high pole electric shears of claim 4, wherein: the shearing assembly (1) comprises a fixed knife (101) fixed on the telescopic outer tube (3), a movable knife (103) rotatably connected to the fixed knife (101) through a first rotating shaft (102), and a return spring (104) arranged between the movable knife (103) and the fixed knife (101) to enable the movable knife (103) and the fixed knife (101) to keep an open state, wherein the driven straight rod (25) is hinged to the movable knife (103).