Shearing tool

Abstract

The utility model discloses a shearing tool which comprises a shell, blades, a protection mechanism, a transmission mechanism and a motor, the blades are oppositely arranged and connected to the shell to form a shearing face, and when the blades are in a natural state, a shearing area is formed between cutting edges of the blades; the protection mechanism is installed on the shell and forms an induction part, and at least part of the projection of the induction part in the shearing face coincides with the projection of the shearing area in the shearing face; the transmission mechanism is installed on the shell and connected with the blades and drives the blades to be close to or away from each other. The motor is contained in the shell and provides power for the transmission mechanism. The cutting tool is provided with the protection mechanism which is used for covering the cutting area between the blades, when a finger or other parts of a human body intends to enter the cutting area, the finger or other parts of the human body firstly touch the induction part contained in the protection mechanism, and the induction part is used for reminding an operator not to go deep into the cutting area continuously, so that the injury probability is reduced; and the safety is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric tools, and in particular relates to a shearing tool with an anti-shearing hand structure. Background Art

[0002] Various scissors are commonly used cutting tools in people's daily life, and they usually use two or more blades to cut objects. Many existing cutting tools do not take protective measures for the blades. Even if they have protective structures, they are only limited to when the tool is not in use. When the tool is in use, the protective structure needs to be removed. Therefore, the blades and human body parts (such as fingers, etc.) cannot be protected during use, which is very dangerous.

[0003] Therefore, in view of the above technical problems, it is necessary to provide a shearing tool with an anti-shearing hand structure.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0005] The utility model aims to provide a shearing tool with a real-time protection structure, which can protect the blade during the use of the tool to prevent damage to human body parts.

[0006] In order to achieve the above purpose, the technical solution provided by a specific embodiment of the utility model is as follows:

[0007] The utility model provides a shearing tool, comprising a shell, a blade, a protection mechanism, a transmission mechanism and a motor, wherein the blades are arranged relatively to each other, connected to the shell and formed with a shearing surface, and when the blades are in a natural state, a shearing area is formed between the blade edges; the protection mechanism is installed on the shell and formed with a sensing part, and the projection of the sensing part in the shearing surface at least partially overlaps with the projection of the shearing area in the shearing surface; the transmission mechanism is installed on the shell, connected to and drives the blades to move closer to or away from each other; the motor is accommodated in the shell and provides power to the transmission mechanism.

[0008] In one or more embodiments of the present invention, the protection mechanism includes a reset component and at least one protective cover, the sensing portion is formed on the protective cover, the protective cover is connected to the shell, the reset component is connected between the protective cover and the shell, and can provide a driving force to drive the protective cover to move to cover the shearing area.

[0009] In one or more embodiments of the present invention, the reset assembly includes an elastic member, one end of which is connected to the protective cover, and the other end is connected to the shell. The elastic member can deform when the protective cover is away from the shearing area, and has a tendency to drive the protective cover to move to cover the shearing area.

[0010] In one or more embodiments of the present invention, the elastic member is a torsion spring, and the torsion spring includes a spring coil fixed to the housing and a blocking rod extending from the spring coil, and the blocking rod is connected to the protective cover.

[0011] In one or more embodiments of the present invention, two protective covers are provided, the two protective covers are arranged opposite to each other, and at least one of them is pivotally provided on the shell to approach or move away from the other protective cover, and the torsion spring includes baffle rods respectively connected to the protective covers.

[0012] In one or more embodiments of the present invention, the protection mechanism further includes a fixing screw for fixing the spring coil to the housing.

[0013] In one or more embodiments of the present invention, the fixing screw simultaneously fixes the protective cover to the housing, and the protective cover includes a cover body for accommodating the blade and a positioning portion connected to the cover body and used to fix the torsion spring.

[0014] In one or more embodiments of the present invention, the positioning portion includes a mounting hole for the spring coil and the fixing screw to pass through and a mounting cavity for accommodating the blocking rod, and the mounting cavity is opened on the side wall of the mounting hole and extends into the cover body.

[0015] In one or more embodiments of the present invention, the cover body includes two baffles arranged opposite to each other and a top plate connected to the two baffles, the positioning portion is connected to one of the baffles and arranged opposite to the top plate, and the blade is arranged between the baffle and the top plate.

[0016] In one or more embodiments of the present invention, at least one end of the protective cover away from the shell is formed with a guide surface, and / or the sensing portion is provided with a guide portion, and the two guide portions abut against each other in a natural state.

[0017] Compared with the prior art, the shearing tool of the utility model is provided with a protective mechanism for covering the shearing area between the blades. When a finger or other part of the human body intends to enter the shearing area, it will first touch the sensing part included in the protective mechanism. The sensing part is used to remind the operator not to continue to go deeper into the shearing area, thereby reducing the probability of injury time and improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of a shearing tool in one embodiment of the utility model;

[0020] Figure 2 This is a partial disassembly diagram of a shearing tool in one embodiment of the utility model;

[0021] Figure 3 An exploded view of a shearing tool in one embodiment of the utility model;

[0022] Figure 4 This is a schematic diagram of a protective cover in one embodiment of the utility model;

[0023] Figure 5 A schematic diagram of another angle of the protective cover in one embodiment of the utility model;

[0024] Figure 6 It is a schematic diagram of a torsion spring in one embodiment of the utility model.

[0025] Description of main reference numerals:

[0026] 100-cutting tool, 10-housing, 20-blade, 201-cutting area, 21-fixed blade, 22-movable blade, 30-protection mechanism, 31-reset assembly, 311-torsion spring, 3111-spring coil, 3112-blocking rod, 32-protective cover, 321-cover body, 3211-baffle, 3212-top plate, 3213-guide surface, 3214-guide part, 322-positioning part, 3221-mounting hole, 3222-mounting cavity, 33-fixing screw, 40-gear, 50-motor, 60-battery. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0028] like Figure 1-3As shown, a shearing tool 100 in one embodiment of the utility model comprises a housing 10, blades 20 arranged opposite to each other, a protective mechanism 30, a transmission mechanism and a motor 50. The housing 10 can be grasped by a user and can provide an installation position for the blades 20, the protective mechanism 30 and the transmission mechanism. The blades 20 are connected to the housing 10, and the blades 20 have at least two blades. The plane where the cutting edges of the two blades 20 intersect is the shearing surface. When in a natural state, a shearing area 201 can be formed between the blades of the blades 20. The protective mechanism 30 can be formed with a sensing part, and the projection of the sensing part on the shearing surface at least partially overlaps with the projection of the shearing area 201 on the shearing surface. The transmission mechanism is fixed on the housing 10, which connects and drives the blades 20 to approach each other to shear the object to be sheared, or to move away from each other to release the object to be sheared and release the shearing area 201 again. The motor 50 is accommodated in the housing 10 and is used to provide power for the transmission mechanism.

[0029] Compared with other cutting tools, the cutting tool 100 in this embodiment is provided with a protective mechanism 30, and the protective mechanism 30 is formed with a sensing part, at least part of the projection of the sensing part on the cutting surface coincides with the projection of the cutting area 201 on the cutting surface, and the protective mechanism 30 completely covers the cutting area 201. When fingers or other parts of the human body intend to enter the cutting area 201, they will first contact the sensing part, which is used to provide a danger warning to the operator, reminding the operator not to continue to go deeper into the cutting area 201, thereby reducing the probability of injury incidents and improving safety.

[0030] It is understandable that the sensing part may be a leaf spring, iron wire or similar component that is elastic and can deform and give a certain squeezing force to the operator's hand so that the operator can sense that the finger is in the shearing area.

[0031] In a preferred embodiment, the protection mechanism 30 includes a reset component 31 and at least one protection cover 32, and the sensing portion is formed on the protection cover 32. The protection cover 32 is connected to the housing 10 through the reset component 31, and the reset component 32 is used to provide a driving force to drive the protection cover 32 to move to cover the cutting area 201. When approaching a branch or other object to be cut, the object to be cut squeezes the protection cover 32 to drive it away from the cutting area 201, the blade 20 is exposed, and the object to be cut enters the cutting area 201 for cutting. After the cutting is completed, the object to be cut is removed, the protection cover 32 loses the squeezing force, and then covers the cutting area 201 again under the action of the reset component 31. Therefore, the protection cover 32 can protect the blade 20 in real time, and can automatically reset after the cutting is completed, without too much human intervention.

[0032] In a preferred embodiment, the reset assembly 31 includes an elastic member, one end of which is connected to the protective cover 32 and the other end is connected to the housing 10. The elastic member can deform and store energy when the protective cover 32 moves, and release the stored energy and reset after the object to be sheared is removed to drive the protective cover 32 to cover the shearing area 201 again. The elastic member is used to provide driving force, the structure is simple, easy to assemble and maintain, and the overall cost is reduced.

[0033] In a preferred embodiment, the following can be used: Figure 6 The torsion spring 311 shown is used as an elastic member, and the torsion spring 311 includes a spring coil 3111 and a baffle rod 3112 connected to the spring coil 3111. The spring coil 3111 is fixed to the housing 10, and the baffle rod 3112 is connected to the protective cover 32 to provide a driving force for the protective cover 32. When the protective cover 32 rotates, the baffle rod 3112 moves with it, and the spring coil 3111 is deformed and stores energy. After a single shearing is completed or the object to be sheared is removed, the spring coil 3111 releases the stored energy and resets, and the baffle rod 3112 drives the protective cover 32 to reset. At this time, the protective cover 32 is pivotally connected to the housing 10 through the torsion spring 311, rather than connected to the blade 20, reducing the load on the blade. Of course, in other embodiments, tension / compression springs or other forms of elastic members can also be selected, and this embodiment is not limited.

[0034] like Figure 2 and 3 As shown, two protective covers 32 can be provided, and the two protective covers 32 are arranged opposite to each other, and at least one of them is rotatably connected to the housing 10, and the other one can be fixedly connected or rotatably connected. Corresponding to the two protective covers 32, two stopper rods 3112 extend from both ends of the spring coil 3111, which are respectively connected to the two protective covers 32. When the movable connection mode is adopted at the same time, the object to be sheared can be squeezed at the same time and the two protective covers 32 can be rotated to both sides respectively to enter the shearing area 201, which is more flexible. In addition, the movable connection mode can reduce the probability of damage to the protective cover 32, and the stability is higher.

[0035] In a preferred embodiment, the shearing tool 100 further includes a fixing screw 33 , and the fixing screw 33 passes through the spring coil 3111 to fix the torsion spring 311 on the housing 10 .

[0036] In a preferred embodiment, the fixing screw 33 fixes the protective cover 32 and the blade 20 to the housing 10 at the same time, and provides a rotation axis for the blade 20, so that the blade 20 can rotate around the fixing screw 33. Figure 4 and 5 As shown, it includes a cover body 321 and a positioning portion 322 . The blade 20 can move in the cover body 321 , and the positioning portion 322 is used to fix the torsion spring 311 .

[0037] Specifically, the positioning portion 322 is as follows Figure 4 The annular structure shown in FIG. 5 includes a mounting hole 3221 for the spring coil 3111 and the fixing screw 33 to pass through, and a mounting cavity 3222 for accommodating the blocking rod 3112. The mounting cavity 3222 is opened on the side wall of the mounting hole 3221 and extends into the cover body 321.

[0038] Furthermore, the cover 321 includes two baffles 3211 disposed opposite to each other, and a top plate 3212 connected between the baffles 3211, the positioning portion 322 is connected to one of the baffles 3211, and the mounting cavity 3222 extends into the baffle 3211. The blade 20 moves in the area formed by the two baffles 3211 and the top plate 3212, and the top plate 3212 can prevent other foreign matter from entering the shearing area 201 to a certain extent.

[0039] like Figure 1 As shown, the covers 321 on both sides not only cover the blade edge of the blade 20 as a whole, but also extend to the other side and cover part of the back of the blade 20 .

[0040] Preferably, to improve ease of use, the protective cover 32 is formed with an arc-shaped guide surface 3213 at one end away from the shell 10, and the guide surface 3213 is used to provide guidance for the object to be sheared to squeeze the protective cover 32 and enter the shearing area 201, so the operator only needs to roughly align the shearing tool 100 and the object to be sheared.

[0041] Furthermore, a guide surface 3213 can be provided at the far end of the two protective covers 32 to form a chamfer between the two guide surfaces 3213. When the fingers enter the chamfer, they are squeezed on both sides, which makes the human body feel more strongly. This can improve the prompting effect on the operator and further reduce the probability of injury.

[0042] In this embodiment, the sensing portion is provided with a guide portion 3214, which is formed on the baffle 3211 and faces the baffle 3211 on the other side, and is connected to the guide surface 3213. When in a natural state, the two guide portions 3214 abut against each other, so that the two protective covers 32 form a closed state. When the object to be sheared moves along the guide surface 3213 to one side of the blade 20 and detaches from the guide surface 3213, it continues to move downward along the guide portion 3214 and finally enters the shearing area 201. The guide portion of the guide surface 3213 can be a bevel or a curved surface. In order to reduce the probability of cutting caused by sharpness in the embodiment of the present application, the guide surface 3213 is set as a curved surface, which transitions from the end of the baffle 3211 away from the positioning portion 322 to the sensing portion. The guide portion 3214 may also be a bevel or an arc surface. Similarly, in order to reduce the probability of cuts caused by sharpness, the guide portion 3214 is set to a arc surface so that the operator can feel the clamping force without being cut by the sharp guide portion 3214.

[0043] The shearing tool 100 in this embodiment is an electric scissors, which is used for trimming branches, etc. The transmission mechanism includes a gear 40 fixed on the output shaft of the motor 50, and the battery 60 is installed at the bottom of the housing 10 to provide power for the motor 50. In addition, the shearing tool 100 is a single-sided movable blade structure, that is, the blade 20 includes a fixed blade 21 and a movable blade 22, and a gear structure is provided on the movable blade 22, which is meshed with the gear 40. When the motor 50 outputs, the gear 40 is driven to rotate, thereby driving the movable blade 22 to rotate around the fixing screw 33 to complete the shearing action.

[0044] It should be understood that in other embodiments, a double movable blade structure may be provided, and in order to improve the shearing effect, the number of blades 20 on each side is not limited.

[0045] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0046] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A shearing tool, characterized in that: include: Housing (10); The blades (20) are arranged opposite to each other, connected to the housing (10) and formed with shearing surfaces, and when the blades (20) are in a natural state, a shearing area (201) is formed between the blade edges; A protection mechanism (30) is mounted on the housing (10) and is formed with a sensing portion, wherein a projection of the sensing portion in the shearing plane at least partially overlaps with a projection of the shearing area (201) in the shearing plane, the protection mechanism (30) comprises a reset component (31) and at least one protection cover (32), the sensing portion is arranged on the protection cover (32), the protection cover (32) is connected to the housing (10), and the reset component (31) is connected between the protection cover (32) and the housing (10) and is capable of providing a driving force to drive the protection cover (32) to move to cover the shearing area (201); A transmission mechanism, mounted on the housing (10), connected to and driving the blades (20) to move closer to or farther from each other; The motor (50) is housed in the housing (10) and provides power to the transmission mechanism.

2. The shearing tool according to claim 1, characterized in that: The reset assembly (31) comprises an elastic member, one end of which is connected to the protective cover (32) and the other end of which is connected to the housing (10); the elastic member is capable of deforming when the protective cover (32) is away from the shearing area (201) and has a tendency to drive the protective cover (32) to move to cover the shearing area (201).

3. The shearing tool according to claim 2, characterized in that: The elastic member is a torsion spring (311), and the torsion spring (311) comprises a spring coil (3111) fixed to the housing (10) and a blocking rod (3112) extending from the spring coil (3111), and the blocking rod (3112) is connected to the protective cover (32).

4. The shearing tool according to claim 3, characterized in that: Two protective covers (32) are provided, the two protective covers (32) are arranged opposite to each other, and at least one of them is pivotally arranged on the housing (10) to approach or move away from the other protective cover (32), and the torsion spring (311) includes blocking rods (3112) respectively connected to the protective covers (32).

5. The shearing tool according to claim 3, characterized in that: The protection mechanism (30) further comprises a fixing screw (33) for fixing the spring coil (3111) to the housing (10).

6. The shearing tool according to claim 5, characterized in that The fixing screw (33) simultaneously fixes the protective cover (32) to the housing (10), and the protective cover (32) comprises a cover body (321) for accommodating the blade (20) and a positioning portion (322) connected to the cover body (321) and used to fix the torsion spring (311).

7. The shearing tool according to claim 6, characterized in that The positioning portion (322) comprises a mounting hole (3221) for the spring coil (3111) and the fixing screw (33) to pass through, and a mounting cavity (3222) for accommodating the blocking rod (3112); the mounting cavity (3222) is opened on the side wall of the mounting hole (3221) and extends into the cover body (321).

8. The shearing tool according to claim 6, characterized in that: The cover body (321) comprises two baffles (3211) arranged opposite to each other and a top plate (3212) connected to the two baffles (3211); the positioning portion (322) is connected to one of the baffles (3211) and arranged opposite to the top plate (3212); and the blade (20) is arranged between the baffle (3211) and the top plate (3212).

9. The shearing tool according to claim 4, characterized in that: At least one end of the protective cover (32) away from the shell (10) is formed with a guide surface (3213), and / or the sensing portion is provided with a guide portion (3214), and the two guide portions (3214) abut against each other when in a natural state.

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