CN220051927U

CN220051927U - Electric scissors

Info

Publication number: CN220051927U
Application number: CN202321678676.7U
Authority: CN
Inventors: 顾书荣; 李芳�; 施金海
Original assignee: Jiangsu Dongcheng Tools Technology Co Ltd
Current assignee: Jiangsu Dongcheng Tools Technology Co Ltd
Priority date: 2023-06-28
Filing date: 2023-06-28
Publication date: 2023-11-21
Anticipated expiration: 2033-06-28

Abstract

The utility model relates to an electric shear, which comprises a shell, a shear head arranged on the shell and a power source arranged in the shell, wherein the shear head comprises a head shell arranged on the shell, a bracket fixed on the head shell and a movable cutter head movably arranged on the head shell, and the power source drives the movable cutter head to rotate relative to the bracket; the scissors head comprises a pressing arm movably arranged on the head shell, and the pressing arm is positioned on one side of the movable cutter head, which is far away from the supporting arm, and rotates along with the movable cutter head. The utility model can prevent the pipe from splashing and has simple operation.

Description

Electric scissors

[ technical field ]

The utility model relates to the technical field of electric tools, in particular to an electric scissors with a pipe splashing prevention effect.

[ background Art ]

In order to adapt to different installation environments, the PVC (Polyvinyl chloride ) pipe is often required to be cut and connected according to actual sizes during installation, and PVC pipe shearing is a common installation step in pipeline installation, so that the convenient and easy-to-use PVC pipe electric shears are very practical. When the existing electric shears shear PVC pipes, small shearing materials are easy to splash, so that operators and peripheral personnel are injured.

To solve the above-mentioned problems, EP2734345B1 discloses a portable electromechanical tool, in which a positioning and locking device for clamping a cable is provided on a working head, the positioning and locking device needs to be manually pulled apart when in use, the positioning and locking device is released after the cable is put in, and the positioning and locking device resets and locks the cable under the drive of a spring. The mode of manually pulling the positioning and locking device brings inconvenience to use and influences the working efficiency.

In view of the above, it is desirable to provide an improved electric shears that overcomes the drawbacks of the prior art.

[ summary of the utility model ]

Aiming at the defects of the prior art, the utility model aims to provide an electric shear which is simple to operate and can prevent the pipe from splashing.

The technical scheme adopted for solving the problems in the prior art is as follows: the electric shear comprises a shell, a shear head arranged on the shell and a power source arranged in the shell, wherein the shear head comprises a head shell arranged on the shell, a supporting arm fixed on the head shell and a movable cutter head movably arranged on the head shell, and the power source drives the movable cutter head to rotate relative to the supporting arm; the method is characterized in that: the scissors head comprises a pressing arm movably arranged on the head shell, and the pressing arm is positioned on one side of the movable cutter head, which is far away from the supporting arm, and rotates along with the movable cutter head.

The further improvement scheme is as follows: the hold-down arm has a tendency to rotate toward the bracket arm.

The further improvement scheme is as follows: an elastic reset mechanism is arranged between the pressing arm and the head shell and drives the pressing arm to rotate towards the supporting arm.

The further improvement scheme is as follows: the elastic reset mechanism is a torsion spring.

The further improvement scheme is as follows: the support arm is provided with a first arc-shaped part facing the opening of the movable cutter head, and the pressing arm is provided with a second arc-shaped part facing the opening of the support arm.

The further improvement scheme is as follows: the width of the pressing arm in the direction perpendicular to the cutting direction of the movable cutter head is larger than or equal to the width of the supporting arm.

The further improvement scheme is as follows: the pressing arm comprises a base connected to the head shell and two mutually parallel pressing plates arranged on the base, and the pressing arm rotates relative to the head shell through the base.

The further improvement scheme is as follows: the base is provided with a groove between the two lower pressure plates, and the groove is used for receiving part of the movable cutter head.

The further improvement scheme is as follows: when the power source drives the movable cutter head to be far away from the supporting arm, the movable cutter head part is accommodated in the groove and pushes the pressing arm to be far away from the supporting arm.

The further improvement scheme is as follows: the pressing arm further comprises a gap for the moving tool bit to pass through, and the gap is positioned between the two pressing plates.

Compared with the prior art, the utility model has the following beneficial effects: according to the utility model, the pressing arm is arranged on the head shell of the electric shear, and the pipe fittings which splash upwards are sheared by the pressing arm are shielded, so that the safety of operators and peripheral personnel can be protected; and the pushing arm can rotate along with the movable cutter head, so that the manual opening is not needed, the operation is simple and convenient, and the working efficiency is improved.

[ description of the drawings ]

The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings:

FIG. 1 is a perspective view of an electric shears according to a preferred embodiment of the present utility model;

FIG. 2 is a schematic perspective view of the electric shears of FIG. 1 at another angle;

fig. 3 is a partially enlarged schematic view of a in the electric shears shown in fig. 2.

Meaning of reference numerals in the drawings:

100. electric scissors; 110. a housing; 120. a head shell; 130. a bracket arm; 131. a first arc-shaped portion; 140. moving the cutter head; 150. pressing down the arm; 151. a second arc-shaped portion; 152. a base; 153. a lower pressing plate; 154. a connecting arm; 155. a pivot; 156. a groove; 157. a slit; 160. an elastic reset mechanism.

Detailed description of the preferred embodiments

The terminology used in the present utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

Referring to fig. 1 to 3, an electric shear 100 according to the present utility model is shown, and the electric shear 100 is used for shearing pipes such as PVC pipes. Generally, the electric shears 100 include a casing 110, a shear head provided on the casing 110 and including a head housing 120 provided on the casing 110, a supporting arm 130 fixed on the head housing 120, and a movable blade 140 movably provided on the head housing 120, and a power source (not shown) provided in the casing 110, the power source driving the movable blade 140 to rotate relative to the supporting arm 130.

In order to prevent the electric shears 100 from damaging operators and surrounding personnel due to splashing of smaller pipe members when cutting pipe members, the utility model is characterized in that a pressing arm 150 which follows the rotation of the movable cutter head 140 is movably arranged on the head shell 120, and the pressing arm 150 is positioned on one side of the movable cutter head 140 away from the supporting arm 130.

In this embodiment, the hold down arm 150 has a tendency to rotate toward the bracket arm 130. Since the pressing arm 150 is disposed on the side of the movable cutter head 140 away from the supporting arm 130, when the movable cutter head 140 is opened, the pressing arm 150 can be pushed outwards to open along with the movable cutter head 140, and when the movable cutter head 140 is closed, in order to realize that the pressing arm 150 closes along with the movable cutter head 140, the pressing arm 150 needs to have a tendency to rotate towards the supporting arm 130.

Specifically, an elastic reset mechanism 160 is disposed between the pressing arm 150 and the head shell 120, and the elastic reset mechanism 160 drives the pressing arm 150 to rotate towards the bracket 130. That is, when the movable cutter 140 is closed, the elastic restoring mechanism 160 drives the pressing arm 150 to be closed together with the movable cutter 140. In this embodiment, the elastic restoring mechanism 160 may be a torsion spring. In other embodiments, the resilient return mechanism 160 may also be a leaf spring or the like.

In this embodiment, the bracket arm 130 is provided with the first arc portion 131 facing the opening of the movable cutter head 140, and the arc profile of the first arc portion 131 is adapted to the outer profile of the pipe fitting commonly found in the market at present, so that the pipe fitting can be limited by the first arc portion 131 when being placed on the bracket arm 130, preventing the pipe fitting from moving along the length direction of the movable cutter head 140 when being sheared, and facilitating the shearing of the pipe fitting.

In this embodiment, in order to further prevent the pipe from moving, the pressing arm 150 is provided with a second arc portion 151 that faces the opening of the moving blade 140, the arc profile of the second arc portion 151 is adapted to the outer profile of the pipe commonly seen in the market at present, and the first arc portion 131 is located on the arc path of the rotation of the second arc portion 151, so that when the pressing arm 150 is closed along with the moving blade, the first arc portion 131 and the second arc portion 151 can cooperate to limit the pipe from two sides of the pipe.

In the present embodiment, the width of the pressing arm 150 is greater than or equal to the width of the bracket 130. In order to effectively prevent the pipe from splashing upwards, the width of the pressing arm 150 is preferably not smaller than the width of the supporting arm 130, so that the pressing arm 150 can be ensured to have a better shielding effect.

With continued reference to fig. 3, in the present embodiment, the pressing arm 150 includes a base 152 and two parallel pressing plates 153 disposed on the base 152, and the pressing arm 150 is disposed on the head housing 120 through the base 152. Specifically, the base 152 is provided with two connecting arms 154, the connecting arms 154 are connected to the head housing 120 via a pivot 155, and the torsion spring is sleeved on the pivot 155 and is located between the base 152 and the head housing 120.

In this embodiment, the base 152 is provided with a slot 156, the slot 156 being adapted to receive the partial transfer bit 140. The edge of the side of the movable blade 140 remote from the bracket 130 snaps into the slot 156. On the one hand, the groove 156 can play a role of limiting the movable cutter head 140, so that the movable cutter head 140 is prevented from shaking in the direction of the pivot 155 when the pipe fitting is sheared; on the other hand, the groove 156 may function to delay opening of the push down arm 150, i.e., when the pipe is cut, the movable blade 140 moves a distance in the groove 156 before abutting against the inner wall of the groove 156 to push the push down arm 150 to open outwards.

In this embodiment, the pressing arm 150 further includes a slit 157 through which the driving tool bit 140 passes, and the slit 157 is located between the two pressing plates 153. The moving blade moves through the slot 157 and abuts against the inner wall of the slot 156.

When the electric shears 100 of the present utility model is used, the movable cutter head 140 is initially in an open state, the pressing arm 150 is also in an open state, a pipe is placed into the supporting arm 130 and limited by the first arc-shaped portion 131, then the movable cutter head 140 is driven by the power source to rotate towards the supporting arm 130 so as to shear the pipe, the pressing arm 150 is driven by the torsion spring to rotate towards the supporting arm 130 along with the movable cutter head 140 until the movable cutter head 140 is matched with the supporting arm 130 to clamp the pipe, when the movable cutter head 140 cuts the pipe, the pressing arm 150 can shield the pipe, prevent the pipe from splashing upwards, and protect safety of operators and surrounding personnel, and at this time, the movable cutter head 140 rotates towards a direction away from the supporting arm 130, and the movable cutter head 140 pushes the pressing arm 150 to rotate to an open position along with the movable cutter head 140.

Finally, it should be noted that: the foregoing examples are merely illustrative of specific embodiments of the present utility model, and are not intended to limit the scope of the present utility model, but although the present utility model has been described in detail with reference to the foregoing examples, it will be understood by those skilled in the art that any modification or variation of the technical solutions described in the foregoing examples or equivalent substitution of some of the technical features thereof may be easily performed within the scope of the present utility model disclosed by the present utility model; such modifications, changes and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model, and are intended to be included in the scope of the present utility model. The scope of the utility model should, therefore, be determined with reference to the appended claims.

Claims

1. The electric shear comprises a shell, a shear head arranged on the shell and a power source arranged in the shell, wherein the shear head comprises a head shell arranged on the shell, a supporting arm fixed on the head shell and a movable cutter head movably arranged on the head shell, and the power source drives the movable cutter head to rotate relative to the supporting arm; the method is characterized in that: the scissors head comprises a pressing arm movably arranged on the head shell, and the pressing arm is positioned on one side of the movable cutter head, which is far away from the supporting arm, and rotates along with the movable cutter head.

2. The electric shears according to claim 1, wherein: the hold-down arm has a tendency to rotate toward the bracket arm.

3. The electric shears according to claim 2, wherein: an elastic reset mechanism is arranged between the pressing arm and the head shell and drives the pressing arm to rotate towards the supporting arm.

4. An electric shear according to claim 3, wherein: the elastic reset mechanism is a torsion spring.

5. The electric shears according to claim 1, wherein: the support arm is provided with a first arc-shaped part facing the opening of the movable cutter head, and the pressing arm is provided with a second arc-shaped part facing the opening of the support arm.

6. The electric shears according to claim 1, wherein: the width of the pressing arm in the direction perpendicular to the cutting direction of the movable cutter head is larger than or equal to the width of the supporting arm.

7. The electric shears according to claim 1, wherein: the pressing arm comprises a base connected to the head shell and two mutually parallel pressing plates arranged on the base, and the pressing arm rotates relative to the head shell through the base.

8. The electric shears according to claim 7, wherein: the base is provided with a groove between the two lower pressure plates, and the groove is used for receiving part of the movable cutter head.

9. The electric shears according to claim 8, wherein: when the power source drives the movable cutter head to be far away from the supporting arm, the movable cutter head part is accommodated in the groove and pushes the pressing arm to be far away from the supporting arm.

10. The electric shears according to claim 7, wherein: the pressing arm further comprises a gap for the moving tool bit to pass through, and the gap is positioned between the two pressing plates.