Butterfly-shaped knife opening structure

Abstract

A butterfly-shaped surgical knife structure comprises a needle plate frame, a needle plate is arranged on the needle plate frame, a screw is arranged on the needle plate, the needle plate is installed on the needle plate frame through the screw, a butterfly-shaped surgical knife used for rotating the screw is connected to the screw, the butterfly-shaped surgical knife comprises a holding portion, a connecting portion and a twisting portion, the holding portion is connected with the connecting portion, and the connecting portion is connected with the twisting portion. And the torsion part is connected to the screw. The utility model has the beneficial effects that the needle plate and the needle plate frame can be mounted in a narrow space, the operation is convenient, the mounting efficiency is high, the torque control effect can be realized, the mounting effect is improved, the time is saved, the mounting efficiency is improved, the quick-release effect can be realized, the use effect is good, and the popularization is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of sewing machines, in particular to a butterfly-shaped opening knife structure. Background Art

[0002] At present, on the existing sewing machines, when installing the needle plate frame and the needle plate, a screwdriver is needed to install the screws. Since the installation space of the needle plate and the needle plate frame on the sewing machine is small and the screwdriver is large in size, it is difficult to install the screwdriver in this small space during installation. Therefore, it is necessary to remove the remaining multiple components of the sewing machine before installation. This causes the problem of complicated installation of the needle plate and the needle plate frame, the installation requires a lot of work, the installation time is long, the work efficiency is low, and the actual application effect is not ideal. Utility Model Content

[0003] The utility model aims to solve the problems existing in the prior art and provides a butterfly-shaped opening structure, which can install a needle plate and a needle plate frame in a narrow space, is easy to operate and has high installation efficiency.

[0004] The utility model adopts a technical solution to solve its technical problems: the butterfly knife structure comprises a needle plate frame, a needle plate is arranged on the needle plate frame, a screw is arranged on the needle plate, the needle plate is mounted on the needle plate frame by the screw, a butterfly knife for rotating the screw is connected to the screw, the butterfly knife comprises a holding part, a connecting part, and a twisting part, the holding part is connected to the connecting part, the connecting part is connected to the twisting part, and the twisting part is connected to the screw.

[0005] Both sides of the connecting portion are arranged in an inwardly contracted state from the gripping portion to the twisting portion.

[0006] A slotted groove for screw rotation is arranged on the top of the screw, and the twisting portion is matched and inserted into the slotted groove of the screw.

[0007] Both sides of the gripping portion are provided with an anti-slip portion 1 protruding outwards.

[0008] The top of the gripping portion is provided with an anti-dropping portion 2 which protrudes upward.

[0009] The butterfly knife is a butterfly knife made of plastic material.

[0010] The beneficial effects of the utility model are: the butterfly opening structure of the utility model has a reasonable structure, can install the needle plate and the needle plate frame in a narrow space, is easy to operate, has high installation efficiency, can achieve the effect of torque control, improves the installation effect, saves time, improves the installation efficiency, can achieve the effect of quick release, has good use effect, and is conducive to promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1It is a schematic diagram of the structure of an embodiment of the utility model;

[0012] Figure 2 It is an exploded view of an embodiment of the utility model.

[0013] Explanation of the reference numerals: needle plate frame 1, needle plate 2, screw 3, slot 3-1, butterfly knife 4, gripping part 4-1, connecting part 4-2, twisting part 4-3, anti-slip part one 4-4, anti-slip part two 4-5. DETAILED DESCRIPTION

[0014] The utility model is further described below in conjunction with the accompanying drawings:

[0015] Referring to the accompanying drawings: the butterfly knife structure in this embodiment includes a needle plate frame 1, a needle plate 2 is arranged on the needle plate frame 1, a screw 3 is arranged on the needle plate 2, the needle plate 2 is installed on the needle plate frame 1 by the screw 3, and the screw 3 is connected with a butterfly knife 4 for rotating the screw 3, and the butterfly knife 4 includes a gripping portion 4-1, and the gripping portion 4-1 is used for gripping, so as to facilitate the operation of the butterfly knife 4, and the butterfly knife 4 can be directly operated in a small space. As shown in the figure, the cross-section of the gripping portion 4-2 is arranged in a square state, a connecting portion 4-2, a torsion portion 4-3, the gripping portion 4-1 is connected to the connecting portion 4-2, the connecting portion 4-2 is connected to the torsion portion 4-3, and the connecting portion 4-2 is used to connect the gripping portion 4-1 and the torsion portion 4-3, The torsion part 4-3 is connected to the screw 3, and the torsion part 4-3 is used to operate the screw 3 to rotate. The installer operates the grip part 4-1 to rotate, and the force of the grip part 4-1 is transmitted to the torsion part 4-3 through the connecting part 4-2. The torsion part 4-3 drives the screw 3 to rotate, so that the screw 3 can fasten the needle plate 2 and the needle plate frame 1 to achieve installation. The butterfly knife 4 can be operated directly in the narrow space above the needle plate frame 1, and the needle plate 2 and the needle plate frame 1 can be installed by directly rotating the screw 3. The operation is convenient and the installation efficiency is high. Since the butterfly knife 4 is easy to operate, the torque control effect can be achieved, the installation effect is improved, time is saved, the installation efficiency is improved, and the quick-release effect can be achieved.

[0016] The two sides of the connecting portion 4-2 are arranged in an inwardly contracted state from the gripping portion 4-1 to the twisting portion 4-3. In this way, as shown in the figure, the cross section of the connecting portion 4-2 is arranged in an inverted trapezoidal state, that is, the two sides of the connecting portion 4-2 are arranged in an inwardly contracted state from the gripping portion 4-1 to the twisting portion 4-3. This can reduce the space occupied by the butterfly knife 4 on the one hand, facilitate operation, and save materials and reduce costs on the other hand.

[0017] The top of the screw 3 is provided with a slot 3-1 for the screw 3 to rotate, and the twisting portion 4-3 is matched and inserted into the slot 3-1 of the screw 3. In this way, as shown in the figure, the twisting portion 4-3 is arranged in a square state, and the twisting portion 4-3 is matched and inserted into the slot 3-1 of the screw 3 so that the twisting portion 4-3 can operate the screw 3 to rotate, which is convenient for installation.

[0018] Both sides of the gripping portion 4-1 are provided with an outwardly protruding anti-slip portion 1 4-4. As shown in the figure, the cross section of the anti-slip portion 1 4-4 is arranged in a square state, which can prevent the installer's hand from escaping from the butterfly knife 4 during operation, ensure the installer's operation is stable, and facilitate the operation of the butterfly knife 4.

[0019] The top of the gripping portion 4-1 is provided with an upwardly protruding anti-slip portion 4-5. As shown in the figure, the cross section of the anti-slip portion 4-5 is arranged in a square state, which can prevent the installer's hand from falling off the butterfly knife 4 during operation, ensure the installer's stable operation, and facilitate the operation of the butterfly knife 4

[0020] The butterfly-shaped knife 4 is a butterfly-shaped knife 4 made of plastic material. This arrangement can reduce the production cost of the butterfly-shaped knife 4.

[0021] When installation is required, first put the needle plate frame 1, then put the needle plate 2, then insert the screw 3, and then operate the butterfly knife 4 to rotate the screw 3 to complete the installation. When disassembling, you can also directly operate the butterfly knife 4 to rotate the screw 3 to complete the disassembly, thus realizing the disassembly and assembly process, and can achieve a quick-disassembly effect.

[0022] The characteristics of the embodiments of the utility model are: the butterfly-shaped knife structure of the utility model has a reasonable structure, can install the needle plate and the needle plate frame in a small space, is easy to operate, has high installation efficiency, can achieve the effect of torque control, improves the installation effect, saves time, improves the installation efficiency, can achieve a quick-release effect, has a good use effect, and is conducive to promotion.

[0023] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A butterfly-shaped opening structure, characterized in that: The invention comprises a needle plate frame (1), wherein a needle plate (2) is arranged on the needle plate frame (1), wherein a screw (3) is arranged on the needle plate (2), wherein the needle plate (2) is mounted on the needle plate frame (1) via the screw (3), wherein the screw (3) is connected with a butterfly knife (4) for rotating the screw (3), wherein the butterfly knife (4) comprises a gripping portion (4-1), a connecting portion (4-2), and a twisting portion (4-3), wherein the gripping portion (4-1) is connected to the connecting portion (4-2), wherein the connecting portion (4-2) is connected to the twisting portion (4-3), and wherein the twisting portion (4-3) is connected to the screw (3).

2. The butterfly-shaped incision structure according to claim 1, characterized in that: Both sides of the connecting portion (4-2) are arranged in an inwardly contracted state in a direction from the gripping portion (4-1) to the twisting portion (4-3).

3. The butterfly-shaped incision structure according to claim 1, characterized in that: The top of the screw (3) is provided with a slot (3-1) for rotating the screw (3), and the twisting portion (4-3) is matched and inserted into the slot (3-1) of the screw (3).

4. The butterfly-shaped incision structure according to claim 1, characterized in that: Both sides of the gripping portion (4-1) are provided with an outwardly protruding anti-slip portion (4-4).

5. The butterfly-shaped opening structure according to claim 1, characterized in that: The top of the gripping portion (4-1) is provided with an anti-slip portion 2 (4-5) protruding upward.

6. The butterfly-shaped incision structure according to claim 1, characterized in that: The butterfly-shaped knife (4) is a butterfly-shaped knife (4) made of plastic material.

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