CN209793807U

CN209793807U - Electric scissors

Info

Publication number: CN209793807U
Application number: CN201920694883.9U
Authority: CN
Inventors: 吴霖军; 徐雪峰
Original assignee: Ningbo Jiemei Import & Export Co Ltd
Current assignee: Ningbo Jiemei Import & Export Co Ltd
Priority date: 2019-05-16
Filing date: 2019-05-16
Publication date: 2019-12-17
Anticipated expiration: 2029-05-16

Abstract

The utility model relates to an electric shears, which comprises an outer shell, set up the scissors head at the shell front end and set up the actuating mechanism in the shell, the linkage of scissors head sets up the drive end at actuating mechanism, the scissors head can open and shut the action under actuating mechanism's drive, actuating mechanism's front end has and to carry out the pivoted cover shell for the shell, the front portion of cover shell stretches out outside the shell, scissors head fixed connection is in the front portion of cover shell, be provided with two at least brake grooves on the perisporium of cover shell, it is equipped with through getting into, deviating from to inlay on the shell the brake groove and switch the cover shell for the fixed and pivoted brake assembly of shell. The utility model provides an electric shears can rotate the scissors head for the casing and then conveniently hold the operation, and inner structure can not influence the scissors head stroke that opens and shuts simultaneously.

Description

Electric scissors

Technical Field

the utility model relates to an electric tool technical field, concretely relates to electric shears.

Background

The electric scissors are a double-insulation handheld electric tool which takes a single-phase series motor as power and drives a working head to carry out shearing operation through a transmission mechanism, and the electric scissors have the characteristics of light weight, safety, reliability and the like. The shearing machine is widely used for metal plate occasions of departments such as automobiles, shipbuilding, airplanes and repairing and the like, and can be used for shearing thin and thin plates, metal plates and other plates. For example, the chinese utility model patent with the publication number CN208029561U (application number 201820111351.3) 'a rear battery electric scissors', wherein the electric scissors comprises an electric scissors main body, a scissors device arranged at the upper end of the electric scissors main body, a transmission mechanism is arranged inside the electric scissors, the upper part of the transmission mechanism is connected with the scissors device, and the scissors device is driven to work. However, the scissors device with the structure is fixed relative to the electric scissors main body and cannot rotate, so that the scissors device cannot be well adapted to convenient operation of different shearing positions when in use.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a can rotate the scissors head for the casing and then conveniently hold the operation to above-mentioned prior art provides one kind, and inner structure can not influence the scissors head electric shears who opens and shuts the stroke simultaneously.

The utility model provides a technical scheme that above-mentioned problem adopted does: the utility model provides an electric scissors, includes the shell, sets up at the scissors head of shell front end and sets up the actuating mechanism in the shell, the scissors head linkage sets up the drive end at actuating mechanism, the scissors head can open and shut the action, its characterized in that under actuating mechanism's drive: the front end of the driving mechanism is provided with a casing capable of rotating relative to the shell, the front part of the casing extends out of the shell, the scissor head is fixedly connected to the front part of the casing, the peripheral wall of the casing is provided with at least two braking grooves, and the casing is embedded with a braking assembly capable of switching the fixed and rotating states of the casing relative to the shell by entering and departing from the braking grooves.

In order to more stably fix the casing relative to the shell, the driving mechanism is also provided with a shaft sleeve arranged at the rear end of the casing, the shaft sleeve is fixedly arranged in the shell, and a locking groove is formed in the shaft sleeve; the detent assembly is capable of being positioned within both the detent groove and the lock groove to secure the shroud relative to the housing.

The braking groove sets up on the outer peripheral face of the rear end portion of cover shell, the locked groove sets up on the periphery wall of axle sleeve front end portion, braking groove and the relative opening of locked groove and can match the butt joint, braking component can be along gliding setting in the locked groove around.

Preferably, actuating mechanism includes motor, gear box, transmission shaft, the both ends of transmission shaft are connected with the output shaft of motor, gear box transmission respectively, the casing of gear box constitutes the cover shell, the cover is set up between motor and gear box and is established outside the transmission shaft.

The structure is simple, the brake assembly comprises a push plate, a brake foot and an elastic piece;

The push plate is embedded in the shell, and the shell is provided with a hole for the push plate to move back and forth;

The brake foot is connected to the push plate and can enter and leave the brake groove along with the movement of the push plate;

Two ends of the elastic piece are respectively connected to the push plate and the shell, and the elastic piece has a tendency of pushing the brake foot to enter the brake groove.

For better stability of the limiting sleeve shell in the working process, shaking caused by a gap between the sleeve shell and the shell is weakened, the limiting sleeve is fixedly sleeved outside the front portion of the shell, a flanging is arranged at the front end of the limiting sleeve in a turnover mode towards the inside of the shell, and the outer wall of the sleeve shell is attached to the inner wall of the flanging.

In order to reduce the swing of the scissor head in the working process, the rear end face of the scissor head is tightly attached to the front end face of the flanging.

in order to better limit the casing in the front-back direction, a section of casing of the casing positioned in the shell protrudes outwards along the radial direction to form a protruding section, and a limit groove capable of accommodating the protruding section in a matching mode is arranged on the inner wall of the shell.

Preferably, the scissors head includes the main part and installs the scissors body in the main part, the rear portion of main part has backward open-ended storage tank, the afterbody of the scissors body stretches into in the storage tank, the fixed cover in rear end of main part is established outside the cover shell, actuating mechanism's front end stretches into in the storage tank, actuating mechanism's front end has the drive wheel that can promote the scissors body and carry out the action of opening and shutting.

Compared with the prior art, the utility model has the advantages of: the utility model discloses well electric scissors, with scissors head fixed connection in the front portion of cover shell, so the scissors head can rotate for the shell along with the cover shell, and then fix the position of cover shell for the shell through braking component for the scissors head can rotate to the angle that the person of facilitating the use held and cut the operation and use, and it is better to use the travelling comfort, and operating efficiency is higher. More importantly, since the scissor head is directly connected to the housing as part of the drive mechanism, the housing as part of the drive mechanism, and the scissor head are synchronized in their oscillation during operation of the electric shears. Compared with the scissors head installed on other parts which are connected with the driving mechanism, the scissors head is driven to reciprocate relative to the axis of the driving mechanism due to the reciprocating vibration of the installation gap relative to the axis of the driving mechanism in the working process of the driving mechanism of other parts, so that the driving distance of the driving mechanism to the scissors body in the scissors head is influenced, and the shearing efficiency of the scissors body is correspondingly influenced. The vibration of this cover shell can not additionally occupy the drive space to the scissors, and the corresponding work efficiency that can not influence the scissors body.

Drawings

Fig. 1 is a perspective view of electric shears according to an embodiment of the present invention.

Fig. 2 is a partial perspective view of electric shears according to an embodiment of the present invention.

Fig. 3 is a partial sectional view of electric shears according to an embodiment of the present invention.

Fig. 4 is an exploded perspective view of an electric shears according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

as shown in fig. 1 to 4, the electric shears in the present embodiment include a housing 1, a scissor head 2, a driving mechanism 3, and a brake assembly 4.

The housing 1 can be formed by two half-shells that can be joined together. According to the application environment of the electric shears, a control circuit board, control keys electrically connected with the control circuit board and a power supply component can be arranged in the shell 1. The control key is arranged at a position convenient for a user to press when the control key is held by the hand, and the control key is partially exposed out of the shell 1 so as to be convenient to press. The power supply part can directly adopt a rechargeable battery or a power supply connector capable of being electrically connected with an external power supply.

The driving mechanism 3 is disposed in the housing 1, the driving mechanism 3 in this embodiment includes a motor 301, a gear box 302, a transmission shaft 303, a shaft sleeve 32, and a driving wheel 304, two ends of the transmission shaft 303 are respectively connected to an output shaft of the motor 301 and the gear box 302 in a transmission manner, and the driving wheel 304 is fixedly connected to an output shaft of the gear box 302. The housing of the gear box 302 forms a sleeve 31 matched with the inner wall of the shell 1, the front end of the sleeve 31 extends out of the shell 1, and the scissor head 2 is fixedly connected to the front part of the sleeve 31. The gear train has in this cover shell 31, and this gear train have one fix the internal gear on cover shell 31 and the meshing sets up a plurality of drive gear in the internal gear, and this cover shell 31 can rotate for shell 1, and when cover shell 31 rotated, intermeshing rotated between internal gear and a plurality of drive gear, has guaranteed that cover shell 31 carries out pivoted stability for shell 1, and this cover shell 31 can drive scissors head 2 and rotate for shell 1. And then adjust the position of scissors head 2 for shell 1 and carry out the shearing operation with the thing of waiting to cut that convenience of customers is directed against different positions to improve this electric scissors's use travelling comfort and work efficiency.

the front portion of shell 1 is fixed the cover outward and is equipped with stop collar 5, and the front end of stop collar 5 turns over to shell 1 inside and is provided with turn-ups 51, and the outer wall of cover shell 31 is attached on turn-ups 51's inner wall. The gap between the outer shell 1 and the sleeve 31 can be filled through the inner wall of the flanging 51, and meanwhile, the rotation of the sleeve 31 is limited, and the swing of the sleeve 31 in the axial direction relative to the outer shell 1 in the rotation process is reduced. The rear end face of scissor head 2 is tightly attached to the front end face of flange 51, and further, the swing of sleeve 31 in the axial direction relative to housing 1 during the rotation process is limited, that is, the swing of scissor head 2 in the axial direction relative to housing 1 is reduced. Meanwhile, in order to avoid displacement of the casing 31 in the front-rear direction during rotation, a section of the casing 31 located in the outer casing 1 protrudes outward in the radial direction with a protruding section 312, a limiting groove 12 capable of matching with and accommodating the protruding section 312 is arranged on the inner wall of the outer casing 1, and the limiting groove 12 realizes limiting of the casing 31 in the front-rear axial direction.

The shaft sleeve 32 is disposed between the motor 301 and the gear box 302 and sleeved outside the transmission shaft 303, so that the shaft sleeve 32 is disposed inside the housing 1 adjacent to the rear end of the casing 31.

When the scissor head 2 is rotated to a proper position with respect to the housing 1, at least two braking grooves 311 are provided on the circumferential wall of the housing 31 and a locking groove 321 is provided on the sleeve 32 in order to fix the adjusted position of the scissor head 2 with respect to the housing 1. The brake assembly 4 is embedded in the housing 1 and can be simultaneously positioned in the brake slot 311 and the lock slot 321 to enable the shell 31 to be in a fixed state relative to the housing 1, and the brake assembly 4 can also be operated to be disengaged from the brake slot 311 to switch the shell 31 relative to the housing 1.

in order to facilitate the braking operation, a braking groove 311 is provided on the outer peripheral surface of the rear end portion of the shell 31, a locking groove 321 is provided on the outer peripheral wall of the front end portion of the boss 32, and the braking groove 311 and the locking groove 321 are opened to be fittingly butted. The number of the braking grooves 311 is specifically set according to the position required to be adjusted, a plurality of braking grooves 311 can be uniformly arranged along the circumferential direction of the outer circumferential wall of the housing 31, if 12 braking grooves 311 can be arranged, one braking groove 311 is arranged at an included angle of 30 degrees, and the 12 braking grooves 311 can realize the adjustment of the scissor head 2 relative to the housing 1 at 12 angular positions.

The brake assembly 4 includes a push plate 41, a brake foot 42, and an elastic member 43. The push plate 41 is embedded in the housing 1 for the user to push forward and backward, and the housing 1 has a hole 11 for the push plate 41 to move forward and backward. In order to facilitate the pushing operation, a pushing rib may be protruded on the upper surface of the pushing plate 41. The braking foot 42 is connected to the push plate 41, and the braking foot 42 is slidably disposed in the locking groove 321 along the front and back direction and can enter and leave the braking groove 311 along with the movement of the push plate 41. The two ends of the elastic element 43 are respectively connected to the push plate 41 and the shell 1, and the push plate 41 and the shell 1 can be respectively provided with a hook for fixing the end of the elastic element 43. The elastic member 43 has a tendency to push the braking leg 42 into the braking groove 311, and specifically, in this embodiment, the front end of the elastic member 43 is connected to the housing 1, the rear end of the elastic member 43 is connected to the push plate 41, and the elastic member 43 is in a natural state when the push plate 41 is not operated. When the scissor head 2 needs to rotate relative to the housing 1, the push plate 41 is pulled backwards, the elastic element 43 is in a stretching state, the brake foot 42 moves backwards along the lock groove 321 along with the push plate 41 to be separated from the brake groove 311, a user holds the scissor head 2 to rotate, the scissor head 2 and the housing 31 synchronously rotate, when the scissor head 2 rotates to a proper position, the push plate 41 is released, the push plate 41 is reset forwards under the action of the pulling force of the elastic element 43, the brake foot 42 slides forwards along the lock groove 321 along with the push plate 41, the front end of the brake foot 42 slides into the brake groove 311 butted with the lock groove 321, the brake foot 42 is clamped in the lock groove 321 and one of the brake grooves 311 at the same time, the housing 31 cannot rotate relative to the housing 1 any more, and the fixed state of the scissor head 2 relative to the housing 1 is realized.

The scissor head 2 in this embodiment includes a main body 21 and a scissor body 22 mounted on the main body 21, a containing groove 211 opened backward is formed at the rear portion of the main body 21, and the tail of the scissor body 22 extends into the containing groove 211. The rear end of the main body 21 is fixedly sleeved outside the sleeve 31, the front end of the driving mechanism 3 extends into the accommodating groove 211, that is, the output shaft of the gear phase extends into the accommodating groove 211, the corresponding driving wheel 304 is also positioned in the accommodating groove 211, the driving wheel 304 adopts components such as a cam in the prior art, and thus, in the rotating process of the driving wheel 304, the driving wheel 304 can push the scissors body 22 to open and close, and the shearing action of the scissors body 22 is realized.

The utility model discloses well electric scissors, with scissors head 2 fixed connection in the front portion of cover shell 31, so scissors head 2 can rotate for shell 1 along with cover shell 31, and then fix the position of cover shell 31 for shell 1 through brake assembly 4 for scissors head 2 can rotate to the angle that the person of facilitating the use held and cut the operation and use, and the use travelling comfort is better, and operating efficiency is higher. More importantly, since the scissor head 2 is directly connected to the housing 31 as part of the drive mechanism 3, the housing 31 as part of the drive mechanism 3, and the scissor head 2 are synchronized in their oscillation during operation of the electric shears. Compared with the method that the scissor head 2 is mounted on other components which are connected with the driving mechanism 3, the other components drive the scissor head 2 to reciprocate relative to the axis of the driving mechanism 3 due to the reciprocating vibration of the mounting gap relative to the axis of the driving mechanism 3 in the working process of the driving mechanism 3, further the driving distance of the driving mechanism 3 to the scissor body 22 in the scissor head 2 is influenced, and the shearing efficiency of the scissor body 22 is correspondingly influenced. The vibration of the housing 31 does not occupy the driving space of the electric shears, and accordingly does not affect the action formation of the shear body 22, and the working efficiency of the shear body 22 is improved.

Claims

1. The utility model provides an electric scissors, includes shell (1), sets up scissors head (2) and the actuating mechanism (3) of setting in shell (1) at shell (1) front end, scissors head (2) linkage sets up the drive end at actuating mechanism (3), scissors head (2) can open and shut the action, its characterized in that under the drive of actuating mechanism (3): the front end of the driving mechanism (3) is provided with a sleeve shell (31) capable of rotating relative to the shell (1), the front part of the sleeve shell (31) extends out of the shell (1), the scissor head (2) is fixedly connected to the front part of the sleeve shell (31), the peripheral wall of the sleeve shell (31) is provided with at least two braking grooves (311), and the shell (1) is embedded with a braking component (4) capable of switching the fixing and rotating state of the sleeve shell (31) relative to the shell (1) through entering and releasing the braking grooves (311).

2. Electric shears according to claim 1, wherein: the driving mechanism (3) is also provided with a shaft sleeve (32) arranged at the rear end of the casing (31), the shaft sleeve (32) is fixedly arranged in the shell (1), and the shaft sleeve (32) is provided with a locking groove (321); the brake assembly (4) can be simultaneously positioned in the brake groove (311) and the lock groove (321) so that the shell (31) is fixed relative to the shell (1).

3. Electric shears according to claim 2, wherein: the brake groove (311) is arranged on the outer peripheral surface of the rear end part of the sleeve (31), the lock groove (321) is arranged on the outer peripheral wall of the front end part of the shaft sleeve (32), the brake groove (311) and the lock groove (321) are relatively opened and can be matched and butted, and the brake assembly (4) can be arranged in the lock groove (321) in a front-back sliding mode.

4. Electric shears according to claim 2, wherein: actuating mechanism (3) include motor (301), gear box (302), transmission shaft (303), the both ends of transmission shaft (303) are connected with output shaft, gear box (302) transmission of motor (301) respectively, the casing of gear box (302) constitutes cover shell (31), axle sleeve (32) set up between motor (301) and gear box (302) and the cover is established outside transmission shaft (303).

5. Electric shears according to any one of claims 1 to 4, wherein: the brake assembly (4) comprises a push plate (41), a brake foot (42) and an elastic piece (43);

The push plate (41) is embedded in the shell (1), and a hole (11) for the push plate (41) to move back and forth is formed in the shell (1);

The brake foot (42) is connected to the push plate (41), and the brake foot (42) can enter and leave the brake groove (311) along with the movement of the push plate (41);

Two ends of the elastic piece (43) are respectively connected to the push plate (41) and the shell (1), and the elastic piece (43) has a tendency of pushing the brake foot (42) to enter the brake groove (311).

6. electric shears according to any one of claims 1 to 4, wherein: the front portion of shell (1) is fixed the cover outward and is equipped with stop collar (5), the front end of stop collar (5) is turned over to turn over to shell (1) inside and is provided with turn-ups (51), the outer wall of cover shell (31) is attached on the inner wall of turn-ups (51).

7. Electric shears according to claim 6, wherein: the rear end face of the scissor head (2) is tightly attached to the front end face of the flanging (51).

8. Electric shears according to any one of claims 1 to 4, wherein: a section of shell of the casing (31) located in the shell (1) protrudes outwards along the radial direction to form a protruding section (312), and a limiting groove (12) capable of accommodating the protruding section (312) in a matching mode is formed in the inner wall of the shell (1).

9. Electric shears according to any one of claims 1 to 4, wherein: scissors head (2) include main part (21) and install scissors body (22) on main part (21), the rear portion of main part (21) has backward open-ended storage tank (211), the afterbody of scissors body (22) stretches into in storage tank (211), the rear end fixed cover of main part (21) is established outside cover shell (31), the front end of actuating mechanism (3) stretches into in storage tank (211), the front end of actuating mechanism (3) has drive wheel (304) that can promote scissors body (22) to open and shut the action.

10. Electric shears according to any one of claims 1 to 4, wherein: a plurality of braking grooves (311) are uniformly formed in the circumferential wall of the sleeve (31) along the circumferential direction.