CN116021724A

CN116021724A - Precision die insert of medical anastomat

Info

Publication number: CN116021724A
Application number: CN202211543228.6A
Authority: CN
Inventors: 王猛; 方光华; 黄中银
Original assignee: Kunshan Youruiquan Precision Components Co ltd
Current assignee: Kunshan Youruiquan Precision Components Co ltd
Priority date: 2022-12-02
Filing date: 2022-12-02
Publication date: 2023-04-28

Abstract

The invention relates to the technical field of mold inserts and discloses a precision mold insert of a medical anastomat, which comprises a water tank water inlet pipe, wherein a water tank is fixedly connected to the outer side of the water tank water inlet pipe, a bottom plate is fixedly connected to the bottom of the water tank, four bases are fixedly connected to the bottom of the bottom plate, a water pipe is fixedly connected to one side of the water tank, a valve is fixedly connected to the outer side of one end of the water pipe, a mold is fixedly connected to the outer side of the water pipe, a mold cover is movably connected to the top of the mold, an insert connecting block is fixedly connected to one side of the mold cover, a fixing insert is movably connected to the inner side of the insert connecting block, an insert limiting block is fixedly connected to one side of the inner side of the mold, and four fixing pins are movably connected to the inner side of the insert limiting block.

Description

Precision die insert of medical anastomat

Technical Field

The invention relates to the technical field of mold inserts, in particular to a precise mold insert of a medical anastomat.

Background

The anastomat is a device used in medicine to replace manual suturing, the main working principle is to separate or anastomose tissues by using titanium nails, is similar to a stapler, and mainly can be divided into a skin anastomat, a digestive tract circular anastomat, a rectum anastomat, a circular hemorrhoid anastomat, a circumcision anastomat, a blood vessel anastomat, a hernia anastomat, a lung cutting suture instrument and the like according to different application ranges, wherein the anastomat replaces manual suturing, can improve the quality of operation, is simple to operate, shortens the operation time, can reduce complications, has better hemostatic effect and plays an increasingly important role in medical treatment.

The mould is a mould and tool for producing the needed products by injection molding, blow molding, extrusion, die casting or forging, smelting, stamping and other methods in industrial production, is a tool for producing molded articles, the tool is composed of various parts, different moulds are composed of different parts, the processing of the appearance of the articles is realized mainly through the change of the physical state of the molded materials, the blank is made into a tool with a specific shape and size under the action of external force, the tool is widely used in the compression molding or injection molding of products such as blanking, die forging, cold heading, extrusion, powder metallurgy, compression casting, engineering plastics, rubber, ceramics and the like, the mould is a precision tool, the shape is complex, the expansion force of the blank is born, and the requirements on structural strength, rigidity, surface hardness, surface roughness and processing precision are high, the state of the art of mold production is one of the important marks of the mechanical manufacturing level, when manufacturing medical anastomat, it will usually use injection mold to make, make the material become the specific shape through injection molding, insert is specially used for inlaying in the mould irregular mould accessory, play the role of fixed template and filling space between the template in the mould, when using injection mold to make the product, want to pour into the mould, then keep warm and shape again, then start the template and take out the injection molding from the mould, this is a working cycle of injection mold preparation product, need to clamp and fix two moulds from top to bottom in this cycle, traditional insert is fixed and set up the screw in fixed template and die, in the screw threaded connection screw, when needing to open the mould and change the insert, the staff twists the screw and makes it rise along the screw, after rising to a certain height, the insert can be slowly ejected from the die cavity, after a worker takes out a product, the screw is screwed back to the initial position in the opposite direction for fixing and replacing operation, the method is time-consuming and labor-consuming in disassembly and assembly, the working efficiency is reduced, the fixation and disassembly cannot be fast carried out, the assembly process is complex, the insert cannot be fast cooled after injection molding is finished, the insert can be taken out after waiting for a long time, the working efficiency is reduced, the structure of the insert is complex, the insert cannot be fast produced, and the cost is high.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides a precision die insert of a medical anastomat, which solves the problems in the prior art.

The invention provides the following technical scheme: the utility model provides a precision die insert of medical anastomat, includes the water tank inlet tube, the outside fixedly connected with water tank of water tank inlet tube, the bottom fixedly connected with bottom plate of water tank, four bases of bottom fixedly connected with of bottom plate, one side fixedly connected with water pipe of water tank, the outside fixedly connected with valve of water pipe one end, the outside fixedly connected with mould of water pipe, the top swing joint of mould has the mould lid, one side fixedly connected with mold insert connecting block of mould lid, the inboard swing joint of mold insert connecting block has fixed mold insert, the outside fixedly connected with mold insert fixed block of fixed mold insert, one side fixedly connected with mold insert stopper of the inside of mould, the inside swing joint of mold insert stopper has four fixed pins.

Further, the water tank comprises a water tank cover, a water tank water inlet is formed in the water tank cover, a water tank main body is fixedly connected to the bottom of the water tank cover, and a water tank water outlet is formed in one side of the water tank main body.

Further, the base comprises a base main body, and a base groove is formed in the base main body.

Further, the die cover comprises a die cover main body, one side of the die cover main body is fixedly connected with a die cover rotating column, the top of the die cover main body is fixedly connected with a die cover handle, and the other side of the die cover main body is provided with two die cover fixing holes.

Further, the fixed mold insert comprises a fixed mold insert upper body, a fixed mold insert lower body is fixedly connected to the bottom of the fixed mold insert upper body, two rotation limiting grooves are formed in the outer side of the fixed mold insert lower body, and an upper limiting groove and a lower limiting groove are formed in the lower portion of the outer side of the fixed mold insert lower body.

Further, the mold insert connecting block comprises a mold insert connecting block fixing plate, one side of the mold insert connecting block fixing plate is fixedly connected with a mold insert connecting block main body, the inside of the mold insert connecting block main body is provided with a mold insert connecting block groove, and the inside of the mold insert connecting block fixing plate is fixedly connected with two mold insert connecting block fixing bolts.

Further, the mold insert fixed block comprises two mold insert fixed block rotating columns, the outer sides of the mold insert fixed block rotating columns are movably connected with mold insert fixed block main bodies, the inner sides of the mold insert fixed block main bodies are fixedly connected with mold insert fixed block bolts, and the outer sides of one sides of the mold insert fixed block bolts are fixedly connected with mold insert fixed block nuts.

Further, the insert limiting block comprises an insert limiting block moving plate, four insert limiting block fixing holes are formed in the insert limiting block moving plate, and an insert limiting block main body is fixedly connected to one side of the insert limiting block moving plate.

Further, the mould includes the mould main part, the inside centre of mould main part is equipped with the mould groove, the inside of mould main part is equipped with the water pipe groove, the top fixedly connected with of mould main part two moulds rotate the bucket, the top of mould main part one side is equipped with mold insert fixed block and rotates the groove, the centre of mould main part one side is equipped with mold insert stopper and removes the spout, one side of mould main part is equipped with four fixed pin grooves.

Further, the water pipe includes the inlet tube, the one end fixedly connected with bolt cooling tube of inlet tube, the one end fixedly connected with outlet pipe of bolt cooling tube.

The invention has the technical effects and advantages that:

1. the invention is beneficial to accelerating the cooling of the object by arranging the water pipe, so that the object can be taken out more quickly, the working time is saved, and the working efficiency is improved.

2. The insert limiting block and the insert fixing block are arranged, so that the insert fixing block is beneficial to fixing an insert, the mold can be fixed, the insert fixing block is very convenient to open, the insert fixing block can be quickly replaced when a certain part is damaged, the insert fixing block is convenient and simple to detach, the work efficiency cannot be influenced, the simple structure is beneficial to production, the production cost is low, and the production speed can be higher.

Drawings

Fig. 1 is a schematic view of the overall structure of the mold insert of the present invention.

Fig. 2 is a schematic diagram of the overall structure of the water tank of the present invention.

Fig. 3 is a schematic view of the whole structure of the base of the present invention.

Fig. 4 is a schematic view of the overall structure of the mold cover of the present invention.

Fig. 5 is a schematic view of the overall structure of the fixing insert of the present invention.

Fig. 6 is a schematic view of the overall structure of the insert attachment block of the present invention.

Fig. 7 is a schematic view of the overall structure of the insert fixing block of the present invention.

Fig. 8 is a schematic diagram of the overall structure of the insert stopper of the present invention.

Fig. 9 is a schematic diagram of the overall structure of the die of the present invention.

FIG. 10 is a schematic view of the overall structure of the water pipe according to the present invention.

The reference numerals are: 1. a water tank inlet pipe; 2. a water tank; 201. a water tank cover; 202. a water inlet of the water tank; 203. a water tank main body; 204. a water outlet of the water tank; 3. a bottom plate; 4. a base; 401. a base body; 402. a base groove; 5. a mold cover; 501. a mold cover body; 502. a mold cover handle; 503. a die cover fixing hole; 504. a die cover rotating column; 6. fixing the insert; 601. fixing the upper body of the insert; 602. fixing the lower body of the insert; 603. rotating the limit groove; 604. an upper limit groove and a lower limit groove; 7. insert connecting blocks; 701. insert connecting block fixing plate; 702. an insert connecting block body; 703. insert connecting block fixing bolts; 704. insert connecting block grooves; 8. insert fixing blocks; 801. insert fixed block rotating column; 802. an insert fixing block main body; 803. insert fixing block nuts; 804. insert fixing block bolts; 9. an insert limiting block; 901. insert stopper moving plate; 902. insert stopper fixing holes; 903. an insert stopper body; 10. a fixing pin; 11. a mold; 1101. a mold body; 1102. a mold groove; 1103. insert fixed block rotating groove; 1104. the insert limiting block moves the chute; 1105. a fixed pin slot; 1106. the mold rotates the barrel; 1107. a water pipe groove; 12. a water pipe; 1201. a water inlet pipe; 1202. a bolt cooling pipe; 1203. a water outlet pipe; 13. and (3) a valve.

Detailed Description

The embodiments of the present invention will be clearly and completely described below with reference to the drawings in the present invention, and the forms of the structures described in the following embodiments are merely examples, and the precision die insert for a medical stapler according to the present invention is not limited to the structures described in the following embodiments, and all other embodiments obtained by a person having ordinary skill in the art without making any inventive effort are within the scope of the present invention.

Referring to fig. 1-10, the invention provides a precision die insert of a medical anastomat, which comprises a water tank water inlet pipe 1, wherein a water tank 2 is fixedly connected to the outer side of the water tank water inlet pipe 1, a bottom plate 3 is fixedly connected to the bottom of the water tank 2, four bases 4 are fixedly connected to the bottom of the bottom plate 3, one side of the water tank 2 is fixedly connected with a water pipe 12, the outer side of one end of the water pipe 12 is fixedly connected with a valve 13, the outer side of the water pipe 12 is fixedly connected with a die 11, the top of the die 11 is movably connected with a die cover 5, one side of the die cover 5 is fixedly connected with an insert connecting block 7, the inner side of the insert connecting block 7 is movably connected with a fixing insert 6, one side of the inner side of the die 11 is fixedly connected with an insert limiting block 9, the inner side of the insert limiting block 9 is movably connected with four fixing pins 10, the water tank water inlet pipe 1 is used for putting cold water into the water tank 2, cold water can continuously flow into the water tank 2 through connecting the water tank water inlet pipe 1, cold water can always be guaranteed to pass through the bottom plate 3 and the die cover 2, one side of the fixing pins 10 is used for connecting the water tank 2, the cooling block 9 can not be firmly moved, the fixing pins 9 can not be controlled, and can be quickly moved, and therefore, the cooling block 9 can not be firmly moved, and the fixing pins can be quickly moved, and the fixing blocks and the fixing block 9 can be quickly moved.

In a preferred embodiment, the water tank 2 comprises a water tank cover 201, a water tank water inlet 202 is arranged in the water tank cover 201, a water tank main body 203 is fixedly connected to the bottom of the water tank cover 201, a water tank water outlet 204 is arranged on one side of the water tank main body 203, the water tank water inlet 202 is used for fixing the water inlet pipe 1 of the water tank, cold water can enter the water tank 2, the water tank water outlet 204 is used for fixing the water pipe 12, cold water can enter the water pipe 12, and then cooling is performed.

In a preferred embodiment, the base 4 includes a base body 401, and a base groove 402 is formed in the base body 401, so that the base body is firmly adsorbed on the ground by the base groove 402, and the safety of the mold is improved, and the mold is not easy to topple over due to collision of external force, and further is dangerous.

In a preferred embodiment, the mold cover 5 includes a mold cover main body 501, one side of the mold cover main body 501 is fixedly connected with a mold cover rotating column 504, the top of the mold cover main body 501 is fixedly connected with a mold cover handle 502, the other side of the mold cover main body 501 is provided with two mold cover fixing holes 503, the mold cover fixing holes 503 are used for fixing an insert connecting block fixing bolt 703 on an insert connecting block 7, so that the insert connecting block 7 can be fixed on the mold cover 5, a user can pick up the mold cover 5 more easily through the mold cover handle 502, and the mold cover rotating column 504 can rotate in a mold rotating barrel 1106 on the mold 11, so that the mold cover 5 can be lifted.

In a preferred embodiment, the fixed insert 6 includes a fixed insert upper body 601, a fixed insert lower body 602 is fixedly connected to the bottom of the fixed insert upper body 601, two rotation limiting grooves 603 are formed in the outer side of the fixed insert lower body 602, an upper limiting groove 604 and a lower limiting groove 604 are formed in the lower side of the fixed insert lower body 602, the rotation limiting grooves 603 are used for limiting rotation of the fixed insert 6 so that the fixed insert 6 cannot rotate, the upper limiting groove 604 and the lower limiting groove 604 are used for limiting up-and-down movement of the fixed insert 6, the fixed insert 6 can be fixed by inserting the insert limiting block 9 into the fixed insert limiting groove, up-and-down movement cannot be performed, further the die cover 5 is fixed, the left-and-right movement of the insert limiting block 9 cannot be affected by the upper limiting groove 604, the fixed insert limiting block can be easily moved out of the upper limiting groove 604, and further the fixed insert 6 can be quickly removed.

In a preferred embodiment, the insert connecting block 7 includes an insert connecting block fixing plate 701, one side of the insert connecting block fixing plate 701 is fixedly connected with an insert connecting block main body 702, an insert connecting block groove 704 is provided in the insert connecting block main body 702, two insert connecting block fixing bolts 703 are fixedly connected in the insert connecting block fixing plate 701, the insert connecting block 7 is used for connecting and fixing the insert 6, the insert connecting block groove 704 is identical to the shape of the fixed insert 6, the fixed insert 6 can pass through and cannot rotate, the position of the insert connecting block is limited, the insert connecting block fixing bolts 703 are used for fixing the insert connecting block 7, the insert connecting block is fixed by screwing the insert connecting block fixing bolts 703 into the die cover fixing holes 503, and the insert connecting block is simple and convenient to install and easy to replace.

In a preferred embodiment, the insert fixing block 8 includes two insert fixing block rotating columns 801, the outer sides of the two insert fixing block rotating columns 801 are movably connected with insert fixing block main bodies 802, the inner sides of the two insert fixing block main bodies 802 are fixedly connected with insert fixing block bolts 804, the outer sides of one sides of the insert fixing block bolts 804 are fixedly connected with insert fixing block nuts 803, the insert fixing block rotating columns 801 are fixed in the insert fixing block rotating grooves 1103, and the insert fixing block main bodies 802 can move on the outer sides of the insert fixing block rotating columns 801, so that the two insert fixing block main bodies 802 can be opened, and then the insert fixing block 6 can be loosened, the insert fixing block 6 can be conveniently taken out, the two insert fixing block main bodies 802 can be extruded towards the middle through tightening of the insert fixing block nuts 803 and the insert fixing block bolts 804, and further the insert fixing block 6 can be fixed firmly.

In a preferred embodiment, the insert stopper 9 includes an insert stopper moving plate 901, four insert stopper fixing holes 902 are provided in the insert stopper moving plate 901, an insert stopper main body 903 is fixedly connected to one side of the insert stopper moving plate 901, and the insert stopper moving plate 901 can move in the middle of an insert stopper moving chute 1104 in the mold 11 so that it can move into the upper and lower stopper grooves 604 and further fix them, and by inserting a fixing pin 10 into the insert stopper fixing hole 902, it can be fixed so that the fixing insert 6 is fixed so that it cannot move up and down, and by pulling out the fixing pin 10, the insert stopper moving plate 901 can move so that it can leave the upper and lower stopper grooves 604 so that it can move up and down, so that it can be released and taken out.

In a preferred embodiment, the mould 11 includes the mould main part 1101, the inside centre of mould main part 1101 is equipped with mould groove 1102, the inside of mould main part 1101 is equipped with water pipe groove 1107, the top fixedly connected with two mould rotation barrels 1106 of mould main part 1101, the top of mould main part 1101 one side is equipped with mold insert fixed block rotation groove 1103, the centre of mould main part 1101 one side is equipped with mold insert stopper removal spout 1104, one side of mould main part 1101 is equipped with four fixed pin grooves 1105, mould groove 1102 is used for carrying out the injection molding, mold insert fixed block rotation groove 1103 is used for the fixed of mold insert fixed block 8, mold insert stopper removal spout 1104 is used for connecting mold insert stopper 9, and mold insert stopper 9 can remove in mold insert stopper removal spout 1104, make it can enter into the upper and lower spacing groove 604 of fixed mold insert 6, make it not reciprocate, also can leave upper and lower spacing groove 604, make it take out conveniently, easy operation, be convenient for use, the fixed pin groove is used for fixing pin 10's through the fixed pin groove 1105 on mould 11 and mold insert stopper 1105 and insert stopper 9 on the fixed hole of stopper 1107, can be used for the water pipe groove 1102 can be fixed in the fixed position of water pipe 12, can be fixed in the fixed position of the stopper hole 12, can be used for the fixed position of the water pipe 12, can be fixed in the water pipe is fixed in the stopper 12, can be moved.

In a preferred embodiment, the water pipe 12 includes the inlet tube 1201, the one end fixedly connected with bolt cooling pipe 1202 of inlet tube 1201, the one end fixedly connected with outlet pipe 1203 of bolt cooling pipe 1202, inlet tube 1201 is used for connecting water tank 2, outlet pipe 1203 is used for discharging the cold water that the use was accomplished, the structure of bolt cooling pipe 1202 is helical structure, encircle outside the mould groove 1102, can the omnidirectional cooling, make the effect of cooling can be better, make the article can be quick taken out, and then accelerate the efficiency of work, go into in the water pipe 12 constantly through cold water, and can discharge, make the water in the bolt cooling pipe 1202 circulate, make the effect of cooling more quick through the cold water of circulation, make the cold water in it can not make the cooling effect worsen because of unable the flow.

The working principle of the invention is as follows:

when the mold insert is used, it is desired to place it in a proper position so that the base 4 is stably contacted with the ground, and the water tank water inlet pipe 1 is connected with cold water so that the cold water can be introduced into the water tank 2, then the mold cover handle 502 is held to be lifted, the mold cover rotating column 504 is rotated in the mold rotating barrel 1106 on the mold 11, so that the mold cover 5 is opened, then the mold groove 1102 is filled with material, then the mold cover 5 is closed, by inserting the fixing insert 6 into the insert connecting block groove 704 and the upper and lower limit grooves 604 inwards, then moving the insert limit block 9 again, so that the insert limit block moving plate 901 moves in the insert limit block moving groove 1104 and slides into the upper and lower limit grooves 604, the fixing insert 6 can be fixed by aligning the fixing pin 1105 with the insert limit block fixing hole, and inserting the fixing pin 10, so that it can not move up and down, and further the mold cover 5 is fixed, and then the insert fixing block main body 802 is stirred, so that the insert fixing block main body 802 rotates outside the insert fixing block rotating column 801, and further the fixing insert 6 is clamped, and by tightening the insert fixing block nut 803 and the insert fixing block bolt 804, the two insert fixing block main bodies 802 can be extruded towards the middle, and further the fixing insert 6 is further fixed, so that it is fixed more firmly, then the valve 13 is opened, so that cold water in the water tank 2 enters the water pipe 12, the structure of the bolt cooling pipe 1202 is in a spiral structure, and surrounds outside the mold groove 1102, so that the cooling effect can be better, the two insert fixing block main bodies 802 can be rapidly taken out, and further the working efficiency is accelerated, through the cold water constantly entering and discharging for the cold water in the water pipe 12 can constantly absorb heat, and then makes its refrigerated faster, after the cooling is accomplished, through extracting fixed pin 10, and unscrew mold insert fixed block nut 803 and mold insert fixed block bolt 804, can make fixed mold insert 6 loosen, and then make mold cover 5 can be opened, make it can be taken out, and the fixed mold insert 6, mold insert connecting block 7, mold insert fixed block 8 and mold insert stopper 9's simple structure, it is also very convenient to install, make the dismantlement also more quick, be convenient for to the change of part, also do benefit to production more, make the cost of production can reduce.

Claims

1. The utility model provides a medical treatment anastomat precision die mold insert, includes water tank inlet tube (1), its characterized in that: the novel water tank water inlet pipe comprises a water tank water inlet pipe body and is characterized in that a water tank (2) is fixedly connected to the outer side of the water tank water inlet pipe body (1), a bottom plate (3) is fixedly connected to the bottom of the water tank (2), four bases (4) are fixedly connected to the bottom of the bottom plate (3), a water pipe (12) is fixedly connected to one side of the water tank (2), a valve (13) is fixedly connected to the outer side of one end of the water pipe (12), a die (11) is fixedly connected to the outer side of the water pipe (12), a die cover (5) is movably connected to the top of the die (11), an insert connecting block (7) is fixedly connected to one side of the die cover (5), an insert fixing block (6) is fixedly connected to the outer side of the insert fixing block (8), and four fixing pins (10) are fixedly connected to one side of the inner side of the die (11).

2. The precision die insert for a medical stapler according to claim 1, wherein: the water tank (2) comprises a water tank cover (201), a water tank inlet (202) is formed in the water tank cover (201), a water tank main body (203) is fixedly connected to the bottom of the water tank cover (201), and a water tank outlet (204) is formed in one side of the water tank main body (203).

3. The precision die insert for a medical stapler according to claim 1, wherein: the base (4) comprises a base main body (401), and a base groove (402) is formed in the base main body (401).

4. The precision die insert for a medical stapler according to claim 1, wherein: the die cover (5) comprises a die cover main body (501), one side of the die cover main body (501) is fixedly connected with a die cover rotating column (504), the top of the die cover main body (501) is fixedly connected with a die cover handle (502), and two die cover fixing holes (503) are formed in the other side of the die cover main body (501).

5. The precision die insert for a medical stapler according to claim 1, wherein: the fixed insert comprises a fixed insert upper body (601), a fixed insert lower body (602) is fixedly connected to the bottom of the fixed insert upper body (601), two rotation limiting grooves (603) are formed in the outer side of the fixed insert lower body (602), and an upper limiting groove (604) and a lower limiting groove (604) are formed in the lower portion of the outer side of the fixed insert lower body (602).

6. The precision die insert for a medical stapler according to claim 1, wherein: the insert connecting block (7) comprises an insert connecting block fixing plate (701), one side of the insert connecting block fixing plate (701) is fixedly connected with an insert connecting block main body (702), an insert connecting block groove (704) is formed in the insert connecting block main body (702), and two insert connecting block fixing bolts (703) are fixedly connected in the insert connecting block fixing plate (701).

7. The precision die insert for a medical stapler according to claim 1, wherein: the insert fixing block (8) comprises two insert fixing block rotating columns (801), insert fixing block main bodies (802) are movably connected to the outer sides of the insert fixing block rotating columns (801), insert fixing block bolts (804) are fixedly connected to the inner sides of the insert fixing block main bodies (802), and insert fixing block nuts (803) are fixedly connected to the outer sides of one sides of the insert fixing block bolts (804).

8. The precision die insert for a medical stapler according to claim 1, wherein: the insert limiting block (9) comprises an insert limiting block moving plate (901), four insert limiting block fixing holes (902) are formed in the insert limiting block moving plate (901), and one side of the insert limiting block moving plate (901) is fixedly connected with an insert limiting block main body (903).

9. The precision die insert for a medical stapler according to claim 1, wherein: the mold (11) comprises a mold main body (1101), a mold groove (1102) is formed in the middle of the inside of the mold main body (1101), a water pipe groove (1107) is formed in the inside of the mold main body (1101), two mold rotating barrels (1106) are fixedly connected to the top of the mold main body (1101), an insert fixing block rotating groove (1103) is formed in the upper portion of one side of the mold main body (1101), an insert limiting block moving sliding groove (1104) is formed in the middle of one side of the mold main body (1101), and four fixing pin grooves (1105) are formed in one side of the mold main body (1101).

10. The precision die insert for a medical stapler according to claim 1, wherein: the water pipe (12) comprises a water inlet pipe (1201), one end of the water inlet pipe (1201) is fixedly connected with a bolt cooling pipe (1202), and one end of the bolt cooling pipe (1202) is fixedly connected with a water outlet pipe (1203).