CN108527464B

CN108527464B - Skin preparation sword that possesses self-lubricating function

Info

Publication number: CN108527464B
Application number: CN201810295425.8A
Authority: CN
Inventors: 王月
Original assignee: Sichuan Cancer Hospital
Current assignee: Sichuan Cancer Hospital
Priority date: 2018-03-30
Filing date: 2018-03-30
Publication date: 2023-08-08
Anticipated expiration: 2038-03-30
Also published as: CN108527464A

Abstract

The invention relates to a skin preparation knife with an automatic lubrication function, which comprises a clamping plate, a blade, a lubrication gasket, a bottom plate and a handle, wherein one end of the handle is arranged on the bottom plate, and an internal cavity for storing lubricant is arranged between the bottom plate and the handle; the lower edge of the bottom plate is provided with a plurality of comb teeth, a plurality of easy-to-break grooves are formed in the position, above the comb teeth, of the bottom plate, the blades are fixed on the bottom plate through the clamping plates, the lubricating gaskets are arranged between the blades and the bottom plate, the lubricating gaskets have water absorption, the upper ends of the lubricating gaskets are communicated with the internal cavity, the lower ends of the lubricating gaskets extend to the knife edges of the blades, and the lubricating gaskets are used for lubricating hair; the skin preparation knife is compact in structure and low in cost, is not only suitable for disposable use, can achieve an automatic lubrication effect, can simplify the preparation work of skin preparation for medical staff, but also can enable the operation during skin preparation to be more convenient, and is beneficial to improving the working efficiency of the medical staff.

Description

Skin preparation sword that possesses self-lubricating function

Technical Field

The invention relates to the technical field of medical equipment, in particular to a skin preparation knife with an automatic lubrication function.

Background

The skin preparation knife is a disposable medical instrument commonly used in hospitals and is mainly used for scraping hair at a part to be opened before an operation; the existing skin preparation knife generally comprises a knife handle, a base and a blade, wherein the base is used for fixing the blade, the base is fixed at one end of the knife handle, the knife handle is convenient for medical staff to hold, and the blade is used for shaving hair.

The skin preparation operation process in the prior art is generally as follows: firstly, coating a lubricant on a skin preparation area, uniformly coating the lubricant by means of cotton balls or gauze and other objects, and then scraping hair on the skin preparation area by holding a skin preparation knife; however, in the prior art, the skin preparation knife and the lubricant are mutually independent, so that on one hand, skin preparation tools which need to be prepared by medical staff are more and dispersed, omission is easy to occur, the workload of the medical staff is increased, and on the other hand, when the existing skin preparation knife is used for skin preparation, the medical staff usually needs to prop up the skin by hands (even if the skin is tensed), meanwhile, the lubricant is smeared by hands, and the skin preparation knife needs to be used for shaving hairs, so that the operation is very inconvenient, and the working efficiency of the medical staff is greatly reduced.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides the skin preparation knife with the automatic lubrication function, which is compact in structure and low in cost, is suitable for disposable use, can realize the automatic lubrication effect, can simplify the skin preparation work of medical staff, can facilitate the operation during skin preparation, and is beneficial to improving the working efficiency of the medical staff.

The technical scheme adopted by the invention is as follows:

the utility model provides a skin preparation sword that possesses self-lubricating function, includes splint, blade, lubrication pad, bottom plate and handle, the one end of handle sets up on the bottom plate, is provided with the inside cavity that is used for storing the lubricant between bottom plate and the handle; the lower edge of bottom plate is provided with a plurality of broachs, is located on the bottom plate the position department of broach top sets up a plurality of easy folding groove, easy folding groove is used for realizing that the broach rotates for easy folding groove, the blade passes through splint are fixed on the bottom plate, the blade with be provided with between the bottom plate lubrication pad piece, lubrication pad piece have hydroscopicity, lubrication pad piece's upper end with inside cavity is linked together, and the lower extreme extends to the edge of a knife department of blade, lubrication pad piece is used for lubricating the hair.

Preferably, the lubricant may be a soap or paraffin oil. On one hand, the soap liquid and the paraffin oil can have good lubricating effect, and are beneficial to the hair shaving process; on the other hand, the soap liquid and the paraffin oil have lower cost, which is beneficial to reducing the use cost of the skin preparation knife, and particularly the cost of the disposable skin preparation knife can be effectively reduced aiming at the disposable skin preparation knife.

Preferably, the lubricating pad can be made of sponge or cotton and other materials; the sponge and cotton have good water absorption performance, especially the sponge, when the sponge adopts the polyvinyl alcohol material, the sponge has high water absorption performance, and is more favorable for the lubrication of hair.

Preferably, the bottom plate is provided with support columns at positions corresponding to the fixing holes on the blades respectively, the clamping plates are provided with connecting columns at positions corresponding to the fixing holes on the blades respectively, the support columns are provided with through holes for penetrating through the connecting columns, the outer diameters of the support columns are larger than the diameters of the fixing holes, and the connecting columns are used for fixing the blades. Because the external diameter of support column is greater than the diameter of fixed orifices, when the spliced pole passes fixed orifices and support column in proper order, when the knot on the bottom plate, the blade just in time is fastened between support column and splint.

Preferably, the support column is in a cylindrical structure or a cuboid structure or a regular prism structure.

Preferably, the depth of the easy-to-fold groove is 1/2-7/8 of the thickness of the bottom plate.

Preferably, the easy-to-fold groove is arranged on one side of the bottom plate, which is close to the blade, and the easy-to-fold groove can be V-shaped, U-shaped, trapezoid, circular arc or the like. The thickness of the bottom plate can be reduced, so that the part below the easy-to-fold groove on the bottom plate can rotate for a certain angle relative to the easy-to-fold groove, and the bottom plate is convenient for processing and forming and is beneficial to reducing the cost.

Preferably, a diversion trench is arranged between two adjacent comb teeth, extends to the position of the easy-to-break trench, and is used for diversion of the lubricant; so as to achieve better lubrication effect when shaving.

Further, the splint includes splint body and protection component, the spliced pole sets up on the splint body, protection component sets up the lower extreme of splint body, protection component is used for sheltering from the blade to the blade that has used hurts the hand, thereby causes the infection.

In a preferred scheme, a groove is formed in one side, close to the blade, of the lower end of the clamping plate body, and a vertical downward guide notch is formed in the groove; the protection component is of a flat plate structure, is arranged between the clamping plate body and the blade and is positioned in the groove; the protection part is provided with a push rod, the push rod extends out of the clamping plate body from the guide notch, the push rod is provided with a push block, and the push block can move downwards along the guide notch under the action of external force.

Compared with the prior art, the skin preparation knife with the automatic lubrication function has the following beneficial effects:

1. the skin preparation knife is compact in structure and low in cost, is not only suitable for disposable use, but also is provided with the lubricant, can realize an automatic lubrication effect in the hair scraping process, can simplify the preparation work of skin preparation of medical staff, can enable the operation of the medical staff in skin preparation to be more convenient, and is beneficial to improving the working efficiency of the medical staff.

2. This skin preparation sword not only can realize the self-lubricating function, and through setting up the guiding gutter after, the self-lubricating effect is better, in the use, and medical personnel only need one hand just can accomplish lubrication and shave the hair process simultaneously, and is very convenient.

3. The skin preparation knife is provided with the protection component for isolating the blade, and after the skin preparation knife is used, the protection component moves downwards and shields the edge of the blade, so that the used blade can be effectively prevented from injuring a person (medical staff or a patient) accidentally, and infection, namely, the injury caused by a sharp tool can be prevented; thereby effectively improving the safety of the skin preparation knife.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is an exploded view of a skin preparation knife with an automatic lubrication function according to embodiment 1 of the present invention.

Fig. 2 is a schematic diagram of a front view structure of a skin preparation knife with an automatic lubrication function according to embodiment 1 of the present invention after assembly.

Fig. 3 is a schematic rear view of the skin preparation knife with an automatic lubrication function according to embodiment 1 of the present invention after assembly.

Fig. 4 is a partial cross-sectional view of a skin preparation knife with an automatic lubrication function according to embodiment 1 of the present invention.

Fig. 5 is a partial cross-sectional view of a skin preparation knife with an automatic lubrication function provided in embodiment 1 of the present invention.

Fig. 6 is a schematic diagram of the skin preparation knife with an automatic lubrication function provided in embodiment 1 of the present invention when the bottom plate under the frangible groove rotates for a certain angle relative to the frangible groove during the working process.

Fig. 7 is a schematic diagram of a skin preparation knife with an automatic lubrication function provided in embodiment 1 of the present invention, in which a diversion trench is added on a bottom plate.

Fig. 8 is a schematic structural diagram of a splint body in the skin preparation knife with an automatic lubrication function according to embodiment 2 of the present invention.

Fig. 9 is a schematic structural diagram of a protecting component in the skin preparation knife with an automatic lubrication function provided in embodiment 2 of the present invention.

Fig. 10 is a schematic diagram of the position of the protecting component before or during use of the skin preparation knife with an automatic lubrication function provided in embodiment 2 of the present invention.

Fig. 11 is a schematic view of a skin preparation knife with an automatic lubrication function provided in embodiment 2 of the present invention, after use, the protection component moves down and shields the blade.

Description of the drawings

Clamping plate 101, blade 102, lubricating pad 103, bottom plate 104, handle 105, internal cavity 106, comb teeth 107, easy-to-fold groove 108, fixing hole 109, support column 110, connecting column 111, diversion trench 112,

the clamping plate comprises a clamping plate body 201, a protection part 202, a groove 203, a guide notch 204, a push rod 205 and a push block 206.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.

Example 1

As shown in fig. 1, 2, 3 and 4, the present embodiment provides a skin preparation knife with an automatic lubrication function, which includes a clamping plate 101, a blade 102, a lubrication pad 103, a bottom plate 104 and a handle 105, wherein one end of the handle 105 is disposed on the bottom plate 104, and an internal cavity 106 for storing lubricant is disposed between the bottom plate 104 and the handle 105; the lower edge of the bottom plate 104 is provided with a plurality of comb teeth 107, a plurality of easy-to-fold grooves are arranged on the bottom plate 104 at the upper position of the comb teeth 107, and the thickness of a local area of the bottom plate 104 can be reduced by arranging the easy-to-fold grooves, so that the bottom plate 104 positioned below the easy-to-fold grooves can rotate (small-angle rotation is usually not more than 15 degrees) relative to the easy-to-fold grooves; the blade 102 is fixed on the bottom plate 104 through the splint 101, be provided with the lubrication pad 103 between blade 102 and the bottom plate 104, lubrication pad 103 has hydroscopicity, the upper end of lubrication pad 103 is linked together with inside cavity 106, the upper end of lubrication pad 103 is linked together with the inside cavity 106's lubricant promptly, the lower extreme extends to the edge of a knife of blade 102 department, lubrication pad 103 absorbs the inside cavity 106's lubricant, the lubricant shifts to the edge of a knife of blade 102 department through lubrication pad 103 under the effect of gravity and adsorption force, thereby realize lubricated hair.

When the skin preparation knife provided by the embodiment is actually used, the skin preparation area is not required to be lubricated in advance, the internal cavity 106 of the skin preparation knife is filled with the lubricant (or is filled with the lubricant), and part of the lubricant is absorbed by the lubricating pad 103 and stored in the lubricating pad 103; the medical staff only needs to hold the handle 105 by hand to enable the blade 102 and the comb teeth 107 to contact the skin and apply proper force to enable the blade 102 and the comb teeth 107 to press on the skin and move along the direction from the blade 102 to the comb teeth 107 (the moving direction of the skin preparation knife is the same as that of the prior art), so as to realize the hair shaving process; in the moving direction of the skin preparation knife, as the lubricating pad 103 is positioned at the front part of the blade 102 and the comb teeth 107 are positioned at the front part of the lubricating pad 103, in the moving process, the comb teeth 107 are firstly contacted with hairs to be shaved and firstly comb the hairs, after the hairs are combed, the hairs pass through the lubricating pad 103 and are stained with the lubricant in the lubricating pad 103, so that the purpose of lubrication is achieved, and the lubricated hairs are finally contacted with the edge of the blade 102 and are cut off by the blade 102, so that the purpose of shaving the hairs is achieved; in addition, in this process, the bottom plate 104 under the frangible groove can rotate by a proper angle relative to the frangible groove under the action of pressure, as shown in fig. 4 and 5, so as to compress the lubricating pad 103 and compress the lubricating pad 103, and the lubricant absorbed in the lubricating pad 103 is pressed out, so as to flow down along the comb teeth 107 and the blade 102, and lubrication of hair and skin is easier to be realized before the blade 102 contacts hair, so that the lubrication and shaving (or shaving) process is completed simultaneously, and the process is very convenient; when the hair scraping stroke is finished once and the skin preparation knife leaves the skin, the compressed lubricating gasket 103 is restored to be original state, and simultaneously, larger adsorption force is generated, the lubricant in the inner cavity 106 is absorbed, enters the lubricating gasket 103 under the dual action of self gravity and the adsorption force and flows downwards along the lubricating gasket 103, so that the hair scraping stroke is convenient to carry out next time, and thus, the hair scraping process can be conveniently and rapidly finished by using one hand of medical staff, and the hair scraping process can realize automatic lubrication, and the other hand can be used for tightening the skin and can be idle.

In this embodiment, an easy-to-fold groove is disposed on the base plate 104 above the comb teeth 107, and the easy-to-fold groove is disposed horizontally, as shown in fig. 1, fig. 4 or fig. 5, it will be understood that multiple easy-to-fold grooves may also be disposed on the base plate 104, and the multiple easy-to-fold grooves are disposed parallel to each other.

In the present embodiment, the lower end of the lubricating pad 103 is flush with the connection portion of the comb teeth 107 and the bottom plate 104, and is not affected; the handle 105 is provided with an opening for loading lubricant into the interior cavity 106.

In a preferred scheme, the handle 105 and the bottom plate 104 can be made of plastic or rubber and other materials preferentially, especially the bottom plate 104 can have certain elasticity (a little elasticity is realized as long as the bottom plate is not broken in a brittle manner), so that the part below the easy-to-break groove on the bottom plate 104 can be elastically deformed; in this embodiment, the handle 105 is vertically disposed on the bottom plate 104, and both the handle 105 and the bottom plate 104 are made of plastic materials and are manufactured by an integral molding process, so that the manufacturing cost can be effectively reduced, and the disposable use is facilitated.

In a preferred embodiment, the lubricant may be a soap or paraffin oil. On one hand, the soap liquid and the paraffin oil can have good lubricating effect, and are beneficial to the hair shaving process; on the other hand, the soap liquid and the paraffin oil have lower cost, which is beneficial to reducing the use cost of the skin preparation knife, and particularly for the disposable skin preparation knife, the cost of the disposable skin preparation knife can be effectively reduced; in this embodiment, the lubricant is a soap solution, and the soap solution may be previously contained in the inner cavity 106 of the skin preparation knife when the skin preparation knife is shipped.

Further, the lubricating pad 103 may be made of a water-absorbing material such as sponge or cotton; the sponge and cotton have good water absorption performance, especially the sponge, when the sponge is made of polyvinyl alcohol, the sponge has high water absorption performance, which is more beneficial to the lubrication of hair; in this embodiment, the lubricating pad 103 is preferably a sponge.

In the prior art, a plurality of fixing holes 109 are usually provided on the conventional blade 102, and the fixing holes 109 are convenient for fixing the blade 102.

As shown in fig. 1, 4, 5 or 6, in this embodiment, support columns 110 are respectively disposed on the base plate 104 corresponding to the positions of the fixing holes 109 on the blades 102, connection columns 111 are respectively disposed on the clamping plate 101 corresponding to the positions of the fixing holes 109 on the blades 102, through holes for penetrating the connection columns 111 are disposed on the support columns 110, the outer diameter of the support columns 110 is larger than the diameter of the fixing holes 109, and the connection columns 111 are used for fixing the blades 102. Since the outer diameter of the supporting column 110 is larger than the diameter of the fixing hole 109, the blade 102 is just fastened between the supporting column 110 and the clamping plate 101 when the connection column 111 is fastened to the base plate 104 after passing through the fixing hole 109 and the supporting column 110 in sequence.

In a preferred embodiment, the support columns 110 are in a cylindrical structure or a rectangular parallelepiped structure or a regular prism structure; the cylinder structure or the cuboid structure or the regular prism structure is a common structure, so that the processing and the forming are convenient; in the present embodiment, as shown in fig. 1, the support column 110 adopts a cylindrical structure.

In a further optimization scheme, the depth of the easy-to-break groove is 1/2-7/8 of the thickness of the bottom plate 104; the deeper the frangible groove, the greater the amount of weakening to the base thickness, the easier it is to effect bending to compress the lubricating pad 103.

In a further preferred embodiment, the frangible groove is disposed on the side of the base plate 104 adjacent to the blade 102, and the frangible groove may have a V-shape, a U-shape, a trapezoid shape, a circular arc shape, or the like. The thickness of the bottom plate 104 can be reduced, so that the part below the easy-to-fold groove on the bottom plate 104 can rotate for a certain angle relative to the easy-to-fold groove, and the bottom plate is convenient for processing and forming, and is beneficial to reducing the cost; as shown in fig. 1 or fig. 5, in this embodiment, the frangible groove may have a V-shaped structure (i.e. the cross-sectional area of the frangible groove is V-shaped), and those skilled in the art will understand that the same effect can be achieved when the frangible groove has a U-shaped structure, a trapezoid structure, or a circular arc structure.

As shown in fig. 7, in a further optimization scheme, a diversion trench 112 is arranged between two adjacent comb teeth 107 on the bottom plate 104, the diversion trench 112 extends to the position of the easy-to-break trench, and the diversion trench 112 is used for diversion of lubricant; when the skin preparation knife is used, when the part below the frangible groove on the bottom plate 104 rotates for a certain angle relative to the frangible groove and compresses the lubricating gasket 103, the lubricant absorbed in the lubricating gasket 103 can be separated out, one part flows downwards along the blade 102 to lubricate the blade 102 and the hair and the skin below the blade 102, the other part can flow between the comb teeth 107 along the diversion trench 112, so that the hair passing through the comb teeth 107 is more easily stained with the lubricant, and the rest lubricant drops on the skin, and meanwhile, a good lubricating effect on the hair and the skin is realized.

Example 2

The main difference between this embodiment 2 and the above embodiment 1 is that in this embodiment, the splint 101 includes a splint body 201 and a protecting member 202, the connecting post is disposed on the splint body 201, the protecting member 202 is disposed at the lower end of the splint body 201, and the protecting member 202 can be used to shield the blade 102, so that the used blade 102 can be effectively prevented from injuring a person (medical staff or patient) accidentally, thereby causing infection.

The sharp wound is an accidental injury of bleeding of a wounded person, is the most common occupational injury in medical care work, the blade 102 in the skin preparation knife belongs to a sharp instrument, is easy to cause injury to medical staff, is usually strictly forbidden in a hospital, and covers a cap for sealing the blade 102 of the skin preparation knife on the skin preparation knife again after the skin preparation knife is used, so that the blade 102 is always exposed outside after the skin preparation knife is used, the sharp wound is easy to be caused, and especially for the blade 102 after the use, germs (such as AIDS and the like) can be carried, if the blade 102 after the use is not protected, the accidental injury is easy to be caused, and serious consequences are caused; the protection component 202 in this embodiment can shield the blade 102 after use, thereby realizing physical isolation, effectively avoiding the blade 102 from directly contacting the human body, eliminating the risk of accidental injury, and having a good function of preventing sharp-wound.

As shown in fig. 8, in the present embodiment, a groove 203 is provided at a side of the lower end of the clamping plate body 201 near the blade 102, and a vertically downward guide notch 204 is provided in the groove 203; as shown in fig. 9, the protection member 202 has a flat plate-shaped structure, and the protection member 202 is disposed between the clamping plate body 201 and the blade 102 and is located in the groove 203; the protecting component 202 is provided with a push rod 205, the push rod 205 extends out of the clamping plate body 201 from the guide notch 204, the end face of the push rod 205 is provided with a push block 206, and under the action of external force, the push block 206 drives the push rod 205 to move downwards along the guide notch 204, so that the protecting component 202 is driven to move downwards until the knife edge of the blade 102 is completely shielded.

As shown in FIG. 10, before the skin preparation knife is used, the pushing block 206 is positioned at the uppermost end of the guiding notch 204, and at this time, the protecting component 202 is retracted upwards to expose the edge of the blade 102; the protecting component 202 is pressed between the clamping plate body 201 and the blade 102, and the position of the protecting component 202 cannot be changed under the action of no external force; so that the skin preparation knife can be used for normal hair shaving operation;

as shown in fig. 11, after the use of the skin preparation knife is completed (i.e. after the hair is shaved off), the medical staff only needs to push the push block 206, and the push block 206 drives the push rod 205 to move downwards along the guide notch 204 under the action of external force, so as to drive the protection component 202 to move downwards together until the edge of the blade 102 is completely shielded; at this time, the edge of the blade 102 is blocked between the protection component 202 and the bottom plate 104, so that the risk of accidental injury is avoided, the safety is very high, the collection, transfer, treatment and other works of the skin preparation knife after use are facilitated, and the safety of staff (or medical staff) can be effectively ensured.

The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention.

Claims

1. The skin preparation knife with the automatic lubrication function is characterized by comprising a clamping plate, a blade, a lubrication gasket, a bottom plate and a handle, wherein one end of the handle is arranged on the bottom plate, an internal cavity for storing lubricant is arranged between the bottom plate and the handle, and an opening for loading the lubricant into the internal cavity is arranged on the handle; the lower edge of bottom plate is provided with a plurality of broachs, is located on the bottom plate the position department of broach top sets up a plurality of easy folding groove, easy folding groove is used for realizing that the broach rotates for easy folding groove, the blade passes through splint are fixed on the bottom plate, the blade with be provided with between the bottom plate lubrication pad piece, lubrication pad piece have hydroscopicity, lubrication pad piece's upper end with inside cavity is linked together, and the lower extreme extends to the edge of a knife department of blade, lubrication pad piece is used for lubricating the hair.

2. The skin preparation knife with the automatic lubrication function according to claim 1, wherein the lubricant is soap liquid or paraffin oil.

3. The skin preparation knife with the automatic lubrication function according to claim 2, wherein the lubrication pad is made of sponge or cotton.

4. The skin preparation sword that possesses self-lubricating function according to claim 3, wherein, on the bottom plate correspond respectively be provided with the support column in the position of fixed orifices on the blade, on the splint correspond respectively be provided with the spliced pole in the position department of fixed orifices on the blade, be provided with on the support column and be used for passing the through-hole of spliced pole, the external diameter of support column is greater than the diameter of fixed orifices, the spliced pole is used for realizing the fixed to the blade.

5. The skin preparation knife with the automatic lubrication function according to claim 4, wherein the support column is of a cylindrical structure, a cuboid structure or a regular prism structure.

6. The skin preparation knife with the automatic lubrication function according to claim 5, wherein the depth of the easy-to-break groove is 1/2-7/8 of the thickness of the bottom plate.

7. The skin preparation knife with the automatic lubrication function according to claim 6, wherein the easy-to-break groove is arranged on one side of the bottom plate, which is close to the blade, and the easy-to-break groove is V-shaped, U-shaped, trapezoid or circular arc.

8. The skin preparation knife with the automatic lubrication function according to claim 7, wherein a diversion trench is arranged between two adjacent comb teeth, and extends to the position of the easy-to-break trench, and the diversion trench is used for diversion of lubricant.

9. The skin preparation knife with the automatic lubrication function according to any one of claims 4 to 8, wherein the clamping plate comprises a clamping plate body and a protection component, the connecting column is arranged on the clamping plate body, the protection component is arranged at the lower end of the clamping plate body, and the protection component is used for shielding the blade.

10. The skin preparation knife with the automatic lubrication function according to claim 9, wherein a groove is formed in one side, close to the blade, of the lower end of the clamping plate body, and a vertical downward guide notch is formed in the groove; the protection component is of a flat plate structure, is arranged between the clamping plate body and the blade and is positioned in the groove; the protection part is provided with a push rod, the push rod extends out of the clamping plate body from the guide notch, the push rod is provided with a push block, and the push block can move downwards along the guide notch under the action of external force.