CN211934201U - Medical forceps for gill part and holotrichia axis and powder injection mold thereof - Google Patents

Abstract

The utility model discloses a medical pincers of gill portion holotrichia axle and powder injection mold thereof, the medical pincers of gill portion holotrichia axle include male tong piece and female tong piece, male tong piece and female tong piece all include the binding clip, gill portion and tong arm, the gill portion of female tong piece is including two arc pressing plates of being connected with binding clip and tong arm respectively, the inboard of one arbitrary arc pressing plate wherein is provided with bellied gill axle, the gill portion of male tong piece is including the connection piece of being connected with binding clip and tong arm respectively, set up the gill axle hole that matches with the gill axle on the connection piece, the connection piece of male tong piece gill portion inserts the centre of two arc pressing plates of female tong piece gill portion, the gill axle inserts in the gill axle hole, flatten the arc pressing plate through the mode of coining, it is fixed and keep rotatory smooth and easy with male tong piece and female tong piece. The utility model discloses utilize two pincers pieces of powder injection technique difference injection moulding medical pincers, be provided with the gill axle that is used for connecting in the gill portion inboard of two pincers pieces, set up the connection of two pincers pieces inside the pincers piece.

Description

A kind of gill dark gill shaft medical forceps and powder injection mold thereof

technical field

The utility model relates to the field of medical instrument manufacturing, in particular to a gill dark gill shaft medical forceps.

Background technique

At present, most of the medical forceps used in hospitals are gill-piercing medical forceps, and the processing method of gill-piercing medical forceps is to first cut the metal bar, and heat the cut bar to 700-800 degrees. It is pressed and formed in a special pressing cavity abrasive tool. After original and multiple punching, rough pressing, fine pressing, and rough shaping, the assembly size of the pliers is completed by milling, pliers processing and grinding. After heating, reaming, piercing the gills, and then flattening, shaping, punching, and installing rivets, the entire pair of pliers is assembled.

The processing of this gill-piercing medical forceps requires a lot of manpower, material resources and financial resources, and is accompanied by defects such as large energy consumption, large environmental pollution, and low production efficiency. The most critical problem is that the forceps blank in the original processing method is in the After high-temperature heating processing, it is easy to cause over-burning and overheating of the material, resulting in voids and trachoma in the material of the pliers blank, which increases the risk of breaking the finished pliers during use, and in serious cases, accidental breakage during the operation. medical malpractice. Therefore, there is a need for a medical forceps with a new structure and a manufacturing method thereof.

In the prior art, the Chinese patent application number: 201510682523.3, the name of the utility model: an inlaid medical forceps, discloses an inlaid medical forceps with a new structure, and the inlaid medical forceps of the utility model changes the original wear and tear. The structure of the gill-type medical forceps changes the shape of the gills of the original gill-piercing forceps. The upper end of the female gills is slotted, and the male gill protrusions are embedded in the female gill grooves, and the bottom of the female gills is positioned. After the small cylinder is embedded in the positioning countersunk hole under the gills of the male piece, rotate it clockwise until the male and female pieces of forceps are closed, and tighten it with the fixing screw. At the same time, the pliers, finger rings, locks and other processes that were originally to be completed by machining, the existing metal powder pressure injection molding technology is used to complete the above processing steps at one time.

In the prior art, although the metal powder pressure injection molding technology is also used, it is still necessary to tighten the gills of the two jaws with fixing screws. During long-term use, the fixing positions of the screws are likely to store water and rust.

Utility model content

The technical problem to be solved by the utility model is to provide a gill dark gill shaft medical forceps and a powder injection mold thereof. The two forceps of the medical forceps are respectively injection-molded by powder injection technology, and are arranged inside the gills of the two forceps. There is a dark gill shaft for connection, and the connection of the two forceps is set inside the forceps.

In order to solve the above-mentioned technical problems, the present utility model provides a gill dark gill shaft medical forceps, comprising a male forceps piece and a female forceps piece, the male forceps piece and the female forceps piece both include a forceps head, a gill portion and a forceps arm, The gills of the female forceps include two arc-shaped pressing pieces connected with the forceps head and the forceps arm respectively, and a convex gill shaft is arranged on the inner side of any one of the curved pressing pieces, and the gills of the male forceps are The part comprises a connecting piece respectively connected with the forceps head and the forceps arm, the connecting piece is provided with a gill shaft hole matching with the gill shaft, and the connecting piece of the gill part of the male forceps is inserted into the two parts of the gill part of the female forceps. In the middle of the arc-shaped pressing sheet, the gill shaft is inserted into the gill shaft hole, and the arc-shaped pressing sheet is flattened by pressing to fix the male and female forceps and keep the rotation smooth.

In a preferred embodiment of the present invention, it further includes that the inner sides of the forceps heads of the male forceps and the female forceps are provided with lip teeth.

In a preferred embodiment of the present invention, it further comprises that the ends of the clamp arms of the male forceps and the female forceps are provided with finger rings and locking teeth.

In order to solve the above-mentioned technical problems, the utility model also provides a powder injection mold for gill dark gill shaft medical pliers, which is used for manufacturing the gill dark gill shaft medical pliers, including an upper mold and a bottom mold, the upper mold and the bottom The mold is closed to form a molding cavity. The molding cavity includes a male clamp cavity and a female clamp cavity. One side of the female clamp cavity is provided with an insert, and the upper and lower sides of the insert are arcs. The insert divides the position of the gill of the female forceps cavity into upper and lower parts, forming two arc-shaped pressing pieces, one side of the insert is provided with a groove, and the groove forms a gill shaft , the position of the gills of the cavity of the male forceps is provided with a convex column, and the convex column forms a gill axis.

In a preferred embodiment of the present invention, a plurality of lifter cavities are further provided in the forming cavity, and the lifter cavities are respectively arranged in communication with the male and female jaws, The cavity of the lifting part includes a plurality of point cavities arranged on the sides of the cavity of the male and female tongs and a connection cavity arranged between the cavity of the male and the female tongs, the A thimble hole is provided below the cavity of the lifting part, and a thimble can be inserted into the thimble hole.

In a preferred embodiment of the present invention, it further includes that both the male forceps cavity and the female forceps cavity include a finger ring cavity, and a lifter cavity is arranged in the finger ring cavity, and the lift The part cavity is a "cross-shaped" cavity, and an ejector pin hole is provided below the lift part cavity, and the ejector pin hole is arranged below the intersection part of the "cross-shaped" cavity.

In a preferred embodiment of the present invention, it further includes that four corners of the bottom mold are provided with mold clamping positioning grooves.

In a preferred embodiment of the present invention, it further comprises an upper die fixing plate, a bottom die fixing plate, a guide post and a thimble fixing plate, the upper end of the guide post is fixed on the upper die fixing plate, and the lower end of the guide post is fixed on the bottom die fixing plate , the upper die is fixed under the upper die fixing plate, the bottom die fixing plate is provided with a thimble fixing plate, and the thimble is arranged on the thimble fixing plate.

In a preferred embodiment of the present invention, an injection port is further provided on the upper mold fixing plate, an injection flow channel is arranged in the upper mold, the injection flow channel runs through the upper mold, and the injection flow The channels are respectively communicated with the injection port and the molding cavity.

In a preferred embodiment of the present invention, the upper mold and the bottom mold are further provided with oil injection channels.

The beneficial effects of the present utility model:

The gill dark gill shaft medical forceps of the utility model changes the existing gill assembly structure of the male forceps and the female forceps, and sets two arc-shaped pressing plates and a raised gill axis on the gills of the female forceps, A connecting piece and a gill shaft hole are arranged on the gills of the male forceps, the connecting piece of the male forceps gills is inserted into the middle of the two arc-shaped pressing pieces on the gills of the female forceps, and the gill shafts are inserted into the gill shaft holes. The arc-shaped pressing piece is flattened by pressing, thereby changing the existing external pin connection structure, preventing water and rust at the pin connection during long-term use, and preventing the operation process. , the protruding pin affects the operation.

The powder injection mold for gill dark gill shaft medical pliers of the present invention is manufactured by powder injection technology. The technical requirements of processing personnel, reduce energy consumption, reduce costs, and greatly improve production efficiency.

Description of drawings

Fig. 1 is the structural representation of gill dark gill shaft medical forceps of the present utility model;

Fig. 2 is the structural representation of the gill dark gill shaft medical forceps powder injection mold of the present utility model;

Fig. 3 is the structural representation of the bottom mold of the present utility model;

FIG. 4 is a schematic view of the structure of the insert of the present invention.

Numeral description in the figure: 1, female forceps; 2, male forceps; 3, forceps head; 301, lip teeth; 4, gills; 401, arc pressing plate; 402, gill shaft; 403, connecting plate; 404, gill shaft hole; 5, clamp arm; 501, finger ring; 502, locking teeth; 6, upper mold fixing plate; 7, upper mold; 8, bottom mold; 801, clamping positioning slot; 9, forming cavity ;901, male clamp cavity; 902, female clamp cavity; 903, insert; 904, groove; 905, convex column; 906, point cavity; 907, connection cavity; 908, "cross shape" "Cavity; 909, thimble hole; 910, broken part cavity; 10, thimble fixing plate; 11, bottom mold fixing plate; 12, guide post; 13, injection port; 14, injection flow channel.

Detailed ways

The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and implement it, but the examples are not intended to limit the present utility model.

1, an embodiment of a gill dark gill shaft medical forceps of the present invention includes a female forceps piece 1 and a male forceps piece 2, and the female forceps piece 1 and the male forceps piece 2 both include a forceps head 3, The gill portion 4 and the pliers arm 5, the gill portion 4 of the female pliers piece 1 includes two arc-shaped pressing pieces 401 respectively connected with the pliers head 3 and the pliers arm 5, and is arranged on the inner side of any one of the arc-shaped pressing pieces 401 There is a raised gill shaft 402, and the gill portion 4 of the male forceps 2 includes a connecting piece 403 that is respectively connected with the forceps head 3 and the forceps arm 5, and the connecting piece 403 is provided with matching with the gill shaft 402. The gill shaft hole 404, the connecting piece 403 of the gill portion 4 of the male forceps piece 2 is inserted into the middle of the two arc-shaped pressing pieces 401 of the gill portion 4 of the female forceps piece 1, and the gill shaft 402 is inserted into the gill shaft hole 404 , the female forceps piece 1 and the male forceps piece 2 have certain toughness, and the arc-shaped pressing piece 401 is flattened by pressing, so that the gill shaft 402 can be inserted into the gill shaft hole 404, and the female forceps piece 1 and the male forceps Sheet 2 is fixed and keeps rotating smoothly, which changes the existing external pin connection structure, prevents water accumulation and rust at the pin connection during long-term use, and also prevents protruding pins during the operation. cause an impact.

Specifically, lip teeth 301 are provided on the inner sides of the pliers 3 of the female forceps 1 and the male forceps 2. By setting the lip teeth 301, the frictional force of the forceps 3 is increased, and it is more convenient to grip objects during use. .

Specifically, finger rings 501 and locking teeth 502 are provided at the ends of the clamp arms 5 of the female forceps 1 and the male forceps 2, and the finger rings 501 and the locking teeth 502 are provided to facilitate use.

Referring to FIG. 2, an embodiment of the powder injection mold of the gill dark gill shaft medical forceps powder injection mold of the present invention includes an upper mold fixing plate 6, an upper mold 7, a bottom mold 8, a thimble fixing plate 10, and a bottom mold fixing plate 11. , Guide post 12, the upper end of the guide post 12 is fixed on the upper die fixing plate 6, the lower end of the guide post 12 is fixed on the bottom die fixing plate 11, the upper die 7 is arranged under the upper die fixing plate 6, the bottom die 8 The bottom mold fixing plate 11 is arranged above the bottom mold fixing plate 11, and a thimble fixing plate 10 is arranged above the bottom mold fixing plate 11. The fixed plate 6 moves in the direction, and the upper mold 7 and the bottom mold 8 are closed to form a molding cavity 9 .

Specifically, the upper mold fixing plate 6 is provided with an injection port 13 , and the upper mold 7 is provided with an injection channel 14 , the injection channel 14 penetrates the upper mold 7 , and the injection channels 14 are respectively Connected with the injection port 13 and the molding cavity 9 , the powder is injected from the injection port 13 and enters the molding cavity 9 along the injection flow channel 14 .

3-4, the forming cavity 9 includes a male jaw cavity 901 and a female jaw cavity 902, and an insert 903 is provided on one side of the male jaw cavity 901, and the insert 903 The upper and lower sides are arc-shaped, the insert 903 divides the position of the gills of the male clamp cavity 901 into upper and lower parts to form two arc-shaped pressing pieces 401, and one side of the insert 903 is provided with Grooves 904 , the grooves 904 form the gill shafts 402 , and the positions of the gills of the female forceps cavity 902 are provided with protruding posts 905 , and the protruding posts 905 form the gill shaft holes 404 .

Specifically, in order to facilitate taking out the formed female forceps 1 and male forceps 2, and to prevent the thimble from directly acting on the female forceps 1 and the male forceps 2, and to prevent damage to the female forceps 1 and the male forceps 2, the molding The cavity 9 is also provided with a number of lifting part cavities, the lifting part cavities form a lifting part, and the lifting part cavities are respectively arranged in communication with the male jaw cavities 901 and the female jaw cavities 902 . The cavity of the lifting part includes several point cavities 906 arranged on the sides of the male and female cavities 901 and 902, and a connection cavity arranged between the male and female cavities 901 and 902. 907, a thimble hole 909 is provided below the cavity of the lifting part, and a thimble can be inserted into the thimble hole 909. After powder injection molding, the thimble is used to push the lifting part, and the lifting part and the female forceps It is ejected together with the male forceps 2. After the ejection, the lifting part is broken and separated from the female forceps 1 and the male forceps 2 to obtain separate female forceps 1 and male forceps 2, which can prevent the female forceps during the ejection process. The forceps 1 and the male forceps 2 are broken and deformed, and at the same time, the surfaces of the female forceps 1 and the male forceps 2 have no thimble marks, so that the injection molding embryos are more beautiful.

Specifically, since both the male jaw cavity 901 and the female jaw cavity 902 include finger ring cavities, a lifter cavity may also be provided in the finger ring cavities, and the The lifting part cavity can be set as a "cross-shaped" cavity 908, and the lower part of the lifting part cavity is provided with an ejector pin hole 909, and the ejector pin hole 909 is arranged under the intersection of the "cross-shaped" cavity 908, Through the design of the "cross-shaped" cavity 908, the ejection force acts uniformly in the four directions of the ring cavity, preventing the ring from being deformed during the ejection process.

Specifically, in order to facilitate the bending and separation of the female forceps 1 and the male forceps 2 and the lifting portion, a broken portion is provided at the connection between the lifting portion cavity and the male forceps cavity 901 and the female forceps cavity 902 The cavity 910, the cavity 910 of the breaking part is thinner than the cavity 901 of the male forceps and the cavity 902 of the female forceps, which is convenient for breaking.

Specifically, in order to ensure the matching between the upper mold 7 and the bottom mold 8, and to make the shape of the mold cavity 9 after mold clamping more accurate, four corners of the bottom mold 8 are provided with mold clamping positioning grooves 801. Four corners of the upper mold 7 are provided with mold clamping positioning blocks.

Specifically, the upper mold 7 and the bottom mold 8 are also provided with oil injection channels. During the process of powder injection, hot oil is injected into the oil injection channels to heat the molds.

The above-mentioned embodiments are only preferred embodiments for fully explaining the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or transformations made by those skilled in the art on the basis of the present invention are all within the protection scope of the present invention. The protection scope of the present utility model is subject to the claims.

Claims (10)

1. The utility model provides a medical pincers of gill portion holotrichia axle, includes male nipper piece and female nipper piece, male nipper piece and female nipper piece all include binding clip, gill portion and tong arm, a serial communication port, the gill portion of female nipper piece is including two arc press the piece be connected with binding clip and tong arm respectively, is provided with bellied gill axle in the inboard of arbitrary arc press the piece wherein, the gill portion of male nipper piece is including the connection piece be connected with binding clip and tong arm respectively, seted up on the connection piece with the gill axle hole that the gill axle matches, the connection piece of male nipper piece gill portion inserts the centre of two arc press the piece of female nipper piece gill portion, the gill axle inserts in the gill axle hole, presses the arc press the piece to flatten through the mode of coining, fixes male nipper piece and female nipper piece and keeps smooth and easy rotation.

2. The medical gill shaft forceps for the gill portion according to claim 1, wherein the inner sides of the forceps heads of the male forceps sheet and the female forceps sheet are provided with labial teeth.

3. The medical gill shaft forceps at the gill portion of claim 1, wherein the distal ends of the forceps arms of the male forceps piece and the female forceps piece are provided with finger rings and locking teeth.

4. The utility model provides a medical pincers powder injection mold of gill portion holotrichia axle for make the medical pincers of gill portion holotrichia axle of above-mentioned claim 1-3 any one, its characterized in that includes mould and die block, it forms the die cavity with the die block compound die to go up the mould, the die cavity includes male tong piece die cavity and female tong piece die cavity to become the die cavity, one side of female tong piece die cavity is provided with the inserts, the upper and lower arc that is of inserts, the inserts divide into two parts about the gill position of female tong piece die cavity, forms two arc pressing plates, one side of inserts is provided with the recess, the recess forms the gill axle, the gill position of male tong piece die cavity is provided with the projection, the projection forms the gill shaft hole.

5. The gill portion and holotrichia shaft medical forceps powder injection mold according to claim 4, wherein a plurality of lifting portion cavities are further arranged in the molding cavity, the lifting portion cavities are respectively communicated with the male forceps piece cavity and the female forceps piece cavity, the lifting portion cavities comprise a plurality of point-shaped cavities arranged on the side surfaces of the male forceps piece cavity and the female forceps piece cavity and a connecting cavity arranged between the male forceps piece cavity and the female forceps piece cavity, and a thimble hole is arranged below the lifting portion cavity and can be used for inserting a thimble into the thimble hole.

6. The gill portion and holotrichia shaft medical forceps powder injection mold according to claim 4, wherein the male forceps piece cavity and the female forceps piece cavity comprise finger ring cavities, lifting portion cavities are arranged in the finger ring cavities, the lifting portion cavities are cross-shaped cavities, and pin ejecting holes are formed in the lower portions of the lifting portion cavities and are arranged below the cross portions of the cross-shaped cavities.

7. The gill shaft medical forceps powder injection mold of claim 4, wherein the bottom mold has mold closing positioning grooves at four corners.

8. The gill portion and holotrichia shaft medical forceps powder injection mold according to claim 4, further comprising an upper mold fixing plate, a bottom mold fixing plate, guide pillars and ejector pin fixing plates, wherein the upper ends of the guide pillars are fixed on the upper mold fixing plate, the lower ends of the guide pillars are fixed on the bottom mold fixing plate, the upper mold is fixed below the upper mold fixing plate, the ejector pin fixing plate is arranged above the bottom mold fixing plate, and the ejector pins are arranged on the ejector pin fixing plate.

9. The gill portion and holotrichia shaft medical forceps powder injection mold of claim 8, wherein the upper mold fixing plate is provided with an injection port, the upper mold is internally provided with an injection flow passage, the injection flow passage penetrates through the upper mold, and the injection flow passage is respectively communicated with the injection port and the molding cavity.

10. The gill portion and holotrichia shaft medical forceps powder injection mold of claim 4, wherein the upper mold and the bottom mold are further provided with oil injection channels.

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