CN217987665U

CN217987665U - Scalpel convenient to change blade

Info

Publication number: CN217987665U
Application number: CN202221738306.3U
Authority: CN
Inventors: 朱艳平; 杨浩
Original assignee: Kunshan Zhuode Precision Machinery Parts Co ltd
Current assignee: Kunshan Zhuode Precision Machinery Parts Co ltd
Priority date: 2022-07-07
Filing date: 2022-07-07
Publication date: 2022-12-09
Anticipated expiration: 2032-07-07

Abstract

The utility model discloses a scalpel convenient for replacing a blade, which comprises a scalpel handle and a blade, wherein the scalpel handle is provided with an installation cavity, and the blade is arranged in the installation cavity; the end of the blade is provided with a clamping groove, a clamping strip is arranged in the mounting cavity, the clamping groove is clamped in the clamping strip, the handle of the knife is provided with a positioning structure for fixing the blade, the positioning structure is provided with a positioning column, the blade is provided with a positioning hole matched with the positioning column, and the positioning column is inserted into the positioning hole to fix the blade. The utility model discloses press the button, the reference column breaks away from in the locating hole of blade, alright extract the blade, when inserting new blade, the draw-in groove card of blade is gone into the card strip, loosens the button, makes the reference column insert the locating hole, realizes the quick replacement of blade.

Description

Scalpel convenient to change blade

Technical Field

The utility model belongs to the technical field of the scalpel, especially, relate to a scalpel convenient to change blade.

Background

The scalpel refers to a special knife which consists of a blade and a handle and is used for cutting human or animal body tissues, and is an indispensable important surgical tool in surgical operations. The scalpel is usually composed of a blade and a handle, and the material of the scalpel is usually pure titanium, titanium alloy, stainless steel or carbon steel. The blade is used for cutting the skin and the muscle during dissection;

in order to ensure the cutting requirement in the operation and avoid secondary infection to the patient, the knife head of the scalpel needs to be replaced frequently. However, the existing scalpel is troublesome in replacing the scalpel head and slow in speed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides a scalpel convenient to change blade, presses the button, and the reference column breaks away from the locating hole of blade, alright extract the blade, and when inserting new blade, the draw-in groove card of blade goes into the card strip, loosens the button, makes the reference column insert the locating hole, realizes the quick replacement of blade.

In order to solve the technical problem, the utility model discloses a technical scheme be: a scalpel facilitating blade replacement comprises a scalpel handle and a blade, wherein the scalpel handle is provided with a mounting cavity, and the blade is mounted in the mounting cavity;

the end part of the blade is provided with a clamping groove, a clamping strip is arranged in the installation cavity, the clamping groove is clamped in the clamping strip, the handle is provided with a positioning structure for fixing the blade, the positioning structure is provided with a positioning column, the blade is provided with a positioning hole matched with the positioning column, and the positioning column is inserted into the positioning hole to fix the blade;

the positioning structure comprises a button, a connecting rod, a positioning block and the positioning column, the button is positioned on the outer side wall of the handle, the button is connected with the connecting rod, the connecting rod is connected with the positioning block, the positioning block is provided with the positioning column, the mounting cavity is provided with a groove, the positioning block is positioned in the groove, and a spring is arranged between the positioning block and the bottom surface of the groove so that the positioning column is inserted into the positioning hole;

the button is pressed, the positioning column is separated from the positioning hole of the blade, the blade can be pulled out, when a new blade is inserted, the clamping strip is clamped into the clamping groove of the blade, the button is loosened, the positioning column is inserted into the positioning hole, and therefore quick replacement of the blade is achieved.

Further, the surface circumference of handle of a knife inwards caves in and forms the round mounting groove, just the mounting groove is located the tip of handle of a knife, the mounting groove cover has anti-skidding cover, the tip threaded connection of handle of a knife in the end cover, the setting of anti-skidding cover plays skid-proof effect, the tip threaded connection of handle of a knife in the end cover, and the antiskid cover of just, prevents simultaneously that the antiskid cover breaks away from the mounting groove.

Furthermore, the two opposite side walls of the button are inclined planes, the inclined direction of the inclined planes gradually inclines towards the two sides along the pressing direction of the button, and the outer wall of the knife handle extends outwards to form a circle of limiting ring matched with the inclined planes.

Further, the outer dimension of the end cap is larger than the dimension of the mounting groove to prevent the anti-slip sleeve from being separated from the mounting groove.

Furthermore, the positioning block is provided with a mounting hole matched with the spring.

Further, the anti-slip sleeve is a rubber anti-slip sleeve.

The beneficial effects of the utility model are that following several points have at least:

the utility model discloses a tip of blade is equipped with the draw-in groove, the inside of installation cavity is equipped with the card strip, the draw-in groove blocks in the card strip, the handle of a knife is equipped with the location structure who is used for fixed blade, location structure has the reference column, the location post is inserted in the locating hole to fix the blade in the handle of a knife, worth mentioning, location structure includes button, connecting rod, locating piece and reference column, press the button, the reference column breaks away from the locating hole of blade, alright extract the blade, when inserting new blade, the draw-in groove card of blade goes into the card strip, loosen the button, make the reference column insert the locating hole, thereby realize quick change to the blade;

the utility model discloses an inside sunken round mounting groove that forms of surface circumference of handle of a knife, mounting groove cover have the antiskid cover, play skid-proof effect, it is worth mentioning that, the tip threaded connection of handle of a knife overlaps in the mounting groove in the end cover, just antiskid cover, prevents simultaneously that the antiskid cover breaks away from the mounting groove.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is an exploded view of the present invention;

fig. 3 is a cross-sectional view of the present invention;

fig. 4 is an enlarged view of fig. 3 a of the present invention;

fig. 5 is a sectional view in the longitudinal direction of the present invention;

fig. 6 is an enlarged view of the present invention at B of fig. 5;

FIG. 7 is a cross-sectional view of the tool shank of the present invention;

fig. 8 is a schematic view of the structure of the blade of the present invention;

the parts in the drawings are marked as follows:

1. a knife handle; 11. a mounting cavity; 12. clamping the strip; 13. a groove; 14. a spring; 15. mounting grooves; 16. an anti-slip sleeve; 17. an end cap; 18. a limiting ring; 2. a blade; 21. a card slot; 22. positioning holes; 31. a positioning column; 32. a button; 321. a bevel; 33. a connecting rod; 34. positioning blocks; 341. and (7) installing holes.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

Example (b): a scalpel facilitating blade replacement is disclosed, as shown in fig. 1, and comprises a scalpel handle 1 and a blade 2, wherein the scalpel handle 1 is provided with a mounting cavity 11, and the blade 2 is mounted in the mounting cavity 11;

as shown in fig. 8, a clamping groove 21 is formed in an end portion of the blade 2, as shown in fig. 7, a clamping strip 12 is arranged inside the mounting cavity 11, the clamping groove 21 is clamped in the clamping strip 12, as shown in fig. 3-4, the tool holder 1 is provided with a positioning structure for fixing the blade 2, the positioning structure is provided with a positioning column 31, the blade 2 is provided with a positioning hole 22 matched with the positioning column 31, and the positioning column 31 is inserted into the positioning hole 22 to fix the blade 2; the positioning structure comprises a button 32, a connecting rod 33, a positioning block 34 and a positioning column 31, wherein the button 32 is located on the outer side wall of the handle 1, the button 32 is connected with the connecting rod 33, the connecting rod 33 is connected with the positioning block 34, the positioning block 34 is provided with the positioning column 31, a groove 13 is formed in the installation cavity 11, the positioning block 34 is located in the groove 13, and a spring 14 is arranged between the positioning block 34 and the bottom surface of the groove 13 to enable the positioning column 31 to be inserted into the positioning hole 22.

In order to improve the skid resistance of the knife handle, as shown in fig. 2, the outer surface of the knife handle 1 is recessed inwards in the circumferential direction to form a circle of mounting groove 15, the mounting groove 15 is located at the end of the knife handle 1, the mounting groove 15 is sleeved with a skid-proof sleeve 16, and the end of the knife handle 1 is in threaded connection with an end cover 17.

As shown in fig. 5 and 6, two opposite side walls of the button 32 are inclined surfaces 321, the inclined surfaces 321 are gradually inclined towards two sides along the pressing direction of the button 32, and the outer wall of the knife handle 1 extends outwards to form a circle of limiting ring 18 matched with the inclined surfaces 321.

The outer dimension of the end cap 17 is larger than the dimension of the mounting groove 15 to prevent the slip-preventing bush 16 from being detached from the mounting groove 15.

The positioning block 34 is provided with a mounting hole 341 matched with the spring 14.

The anti-skid sleeve 16 is a rubber anti-skid sleeve.

The utility model discloses a theory of operation as follows: the button is pressed, the positioning column is separated from the positioning hole of the blade, the blade can be pulled out, when a new blade is inserted, the clamping groove of the blade is clamped into the clamping strip, the button is loosened, the positioning column is inserted into the positioning hole, and therefore the blade can be rapidly replaced.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the same principle as the present invention.

Claims

1. The utility model provides a scalpel convenient to change blade which characterized in that: the cutter comprises a cutter handle (1) and a blade (2), wherein the cutter handle is provided with a mounting cavity (11), and the blade is mounted in the mounting cavity;

a clamping groove (21) is formed in the end portion of the blade, a clamping strip (12) is arranged in the mounting cavity and clamped in the clamping strip, a positioning structure for fixing the blade is arranged on the cutter handle, the positioning structure is provided with a positioning column (31), the blade is provided with a positioning hole (22) matched with the positioning column, and the positioning column is inserted into the positioning hole to fix the blade;

the positioning structure comprises a button (32), a connecting rod (33), a positioning block (34) and a positioning column, wherein the button is positioned on the outer side wall of the handle, the button is connected with the connecting rod, the connecting rod is connected with the positioning block, the positioning block is provided with the positioning column, a groove (13) is formed in the installation cavity, the positioning block is positioned in the groove, and a spring (14) is arranged between the positioning block and the bottom surface of the groove so that the positioning column can be inserted into the positioning hole.

2. The scalpel facilitating blade replacement of claim 1, wherein: the outer surface circumference of handle of a knife inwards caves in and forms round mounting groove (15), just the mounting groove is located the tip of handle of a knife, the mounting groove cover has anti-skidding cover (16), the tip threaded connection of handle of a knife is in end cover (17).

3. The scalpel facilitating blade replacement of a scalpel of claim 1, wherein: the relative both sides wall of button is inclined plane (321), and the incline direction on inclined plane is along the direction that the button was pressed to both sides slope gradually, the outer wall of handle of a knife outwards extends and forms round spacing collar (18) with inclined plane assorted.

4. The scalpel facilitating blade replacement of claim 2, wherein: the outer dimension of the end cover is larger than the dimension of the mounting groove so as to prevent the anti-slip sleeve from being separated from the mounting groove.

5. The scalpel facilitating blade replacement of claim 1, wherein: the positioning block is provided with a mounting hole (341) matched with the spring.

6. The scalpel facilitating blade replacement of claim 2, wherein: the anti-slip sleeve is a rubber anti-slip sleeve.