阅读说明：本技术 一种中空塑钢缠绕管的加工方法 (processing method of hollow plastic-steel winding pipe ) 是由 陶惠芹 万剑 于 2019-09-09 设计创作，主要内容包括：本发明涉及一种中空塑钢缠绕管的加工方法,具体包括以下加工步骤：混料、挤出、冷却定型、切割、入库等工序,上述冷却定型过程中使用到的冷却装置包括箱体、冷却套、定径套与冷却机构,箱体为中空结构,箱体内安装有冷却套,冷却套左右两端对称安装有定径套,冷却套中部安装有冷却机构,且箱体前后上下外壁上均开设有进水口,箱体下端开设有出水口。本发明采用喷淋法对中空塑钢管材进行冷却定型,且冷却管能够在一定范围内进行往复转动,从而扩大了冷却水与管材的接触面积,既提高了冷却均匀性,又能够保证管材圆周的受力均匀。(The invention relates to a processing method of a hollow plastic-steel winding pipe, which specifically comprises the following processing steps: the cooling device used in the cooling and shaping process comprises a box body, a cooling sleeve, a sizing sleeve and a cooling mechanism, the box body is of a hollow structure, the cooling sleeve is installed in the box body, the sizing sleeve is symmetrically installed at the left end and the right end of the cooling sleeve, the cooling mechanism is installed in the middle of the cooling sleeve, water inlets are formed in the upper outer wall and the lower outer wall of the box body in the front and at the back of the box body, and water outlets are formed in the lower end of the box body. The invention adopts a spraying method to cool and shape the hollow plastic steel pipe, and the cooling pipe can rotate in a reciprocating way within a certain range, thereby enlarging the contact area of cooling water and the pipe, improving the cooling uniformity and ensuring the uniform stress of the circumference of the pipe.)

1. A processing method of a hollow plastic steel winding pipe is characterized by comprising the following steps: the method specifically comprises the following processing steps:

s1 mixing: mixing polyethylene particles and color master batch by using a mixer to prepare a mixture, wherein the weight ratio of the polyethylene particles to the color master batch in the mixture is 100: 2;

S2 extrusion: feeding the mixture into a single-screw extruder, and simultaneously putting the steel belt into a mouth die of the extruder to perform composite extrusion with the molten mixture to prepare a profile;

S3 cooling and shaping: cooling the section bar by using a cooling device to form a continuous strip;

s4 cutting: cutting the continuous strip into preset lengths by using a cutting machine to obtain a finished product;

And S5 storage: uniformly packaging the finished products, and putting the finished products into a warehouse for storage;

the cooling device used in the cooling and shaping process comprises a box body (1), a cooling sleeve (2), a sizing sleeve (3) and a cooling mechanism (4), wherein the box body (1) is of a hollow structure, the cooling sleeve (2) is installed in the box body (1), the sizing sleeve (3) is symmetrically installed at the left end and the right end of the cooling sleeve (2), the cooling mechanism (4) is installed in the middle of the cooling sleeve (2), water inlets (1a) are formed in the front outer wall, the rear outer wall, the upper outer wall and the lower outer wall of the box body (1), and a water outlet (1b) is formed in the lower; wherein:

The cooling jacket (2) comprises a main sleeve (21), a telescopic plate (22) and a linkage plate (23), the main sleeve (21) is of a hollow cylinder structure, seven groups of mounting ports are uniformly formed in the side wall of the main sleeve (21) from left to right, the mounting ports in the same group are uniformly arranged along the circumferential direction of the main sleeve (21), the adjacent mounting ports in the same group are communicated with each other, the telescopic plate (22) is mounted in the mounting ports in a sliding fit manner, the adjacent telescopic plates (22) in the same group are connected with each other through the linkage plate (23), water receiving ports (221) are formed in the telescopic plate (22), the positions of the water receiving ports (221) correspond to the positions of the water inlets (1a) one by one, and water leakage holes (21a) are symmetrically formed in the front side and the rear side of the upper end of;

The cooling mechanism (4) comprises a water inlet pipe (41), a cooling pipe (42), a protective cover (43), a partition plate (44), an adjusting screw (45) and a connecting plate (46), the water inlet pipe (41) is installed between a water inlet (1a) and a water receiving port (221) which correspond to each other in position, the lower end of the water inlet pipe (41) is connected with the upper end of the cooling pipe (42), the cooling pipe (42) is positioned inside a main sleeve (21), the partition plate (44) is arranged between adjacent water inlet pipes (41), the partition plate (44) is installed between the inner wall of the box body (1) and the outer wall of the main sleeve (21), adjacent cooling pipes (42) are connected through the connecting plate (46), round holes are uniformly formed in the connecting plate (46), adjusting screw holes are formed in the middles of the two partition plates (44) positioned at the leftmost end and the rightmost end of the box body (, the lower end of the adjusting screw (45) is mounted on the connecting plate (46) through a bearing, a protective cover (43) is arranged on the outer side of the water inlet pipe (41) positioned at the upper end of the main sleeve (21), and the protective cover (43) is mounted on the main sleeve (21).

2. The processing method of the hollow plastic-steel winding pipe according to claim 1, wherein the processing method comprises the following steps: sizing cover (3) are including connecting screw rod (31), adapter sleeve (32), connecting block (33) and the cover body (34), connecting screw rod (31) bilateral symmetry divide into two sets of installing on box (1) inner wall, and evenly arrange along box (1) inner wall direction with connecting screw rod (31) of group, connecting screw rod (31) lower extreme is connected with adapter sleeve (32) upper end inner wall through the threaded connection mode, install on connecting block (33) adapter sleeve (32) lower extreme, connecting block (33) are installed on the outer wall of the cover body (34) through the bearing.

3. the processing method of the hollow plastic-steel winding pipe according to claim 2, characterized in that: connecting sleeve (32) are including solid fixed cylinder (321), telescopic cylinder (322) and expanding spring (323), and gu fixed cylinder (321) installs on connecting block (33), has seted up flexible groove on gu fixed cylinder (321), telescopic cylinder (322) are installed through sliding fit mode to flexible groove upper end, are connected with expanding spring (323) between telescopic cylinder (322) lower extreme and gu fixed cylinder (321) lower extreme, set up the screw thread on telescopic cylinder (322) inner wall.

4. The processing method of the hollow plastic-steel winding pipe according to claim 1, wherein the processing method comprises the following steps: in expansion plate (22), expansion plate (22) front end that is located main sleeve (21) upper end has seted up aqua storage tank (22a), aqua storage tank (22b) No. two have been seted up to the rear end, aqua storage tank (22a) is the same with No. two aqua storage tank (22b) shapes, and aqua storage tank (22a) upper end rear side and No. two aqua storage tank (22b) upper end middle part have all seted up inlet opening (22c), inlet opening (22c) upper end and the interior wall of main sleeve (21) of seting up on No. two aqua storage tank (22b) paste, water hole (22d) down have all been seted up to aqua storage tank (22a) lower extreme front side and No. two aqua storage tank (22b) lower extreme rear side.

5. the processing method of the hollow plastic-steel winding pipe according to claim 1, wherein the processing method comprises the following steps: in the water inlet pipe (41), water spray nozzles are symmetrically formed in the left side and the right side of the water inlet pipe (41) positioned at the upper end of the main sleeve (21), and water spray branch pipes (41a) are installed on the outer sides of the water spray nozzles.

6. The processing method of the hollow plastic-steel winding pipe according to claim 1, wherein the processing method comprises the following steps: the cooling pipe (42) is of an up-down telescopic structure, the left side and the right side of the cooling pipe (42) are symmetrically provided with clamping blocks (421), and the clamping blocks (421) are connected with the connecting plate (46) in a sliding fit mode.

7. the processing method of the hollow plastic-steel winding pipe according to claim 1, wherein the processing method comprises the following steps: the connecting plate (46) is of a circular arc surface structure, and the circle where the inner contour line and the outer contour line of the connecting plate (46) are concentric with the circle where the outer contour line of the main sleeve (21) is located.

Technical Field

The invention relates to the technical field of pipeline processing, in particular to a processing method of a hollow plastic-steel winding pipe.

background

The hollow plastic-steel winding pipe is made of a steel-plastic composite special-shaped strip material through spiral winding and welding, the inner wall of the hollow plastic-steel winding pipe is smooth and flat, the pipe has the advantages of corrosion resistance, light weight, simplicity and convenience in installation, large flow rate, long service life and the like, and the hollow plastic-steel winding pipe can replace a pipe made of a high-energy-consumption material and belongs to an environment-friendly green product.

The existing hollow plastic steel winding pipe mainly comprises the steps of mixing, extruding, conforming, cooling, shaping, dividing and the like, wherein the cooling and shaping effects directly influence the quality of finished products. However, the cooling process of the pipe currently has the following problems:

(1) when the pipe is cooled by adopting a spraying method, the contact area of the pipe and cooling water is limited due to the fixed position of the pipe, and each part of the pipe cannot be ensured to be contacted with the cooling water, so that the cooling uniformity is poor, and the cooled part and the uncooled part of the pipe have shape difference;

(2) When the soaking method is adopted for cooling, the pipe can be in overall contact with cooling water, but the water pressure on the circumference of the pipe is different, so that the roundness of the pipe is out of tolerance, the quality of the finished pipe is still defective, in addition, the cooling efficiency of the soaking method is low, and the production requirement of large-batch pipes cannot be met.

Disclosure of Invention

in order to solve the problems, the invention provides a processing method of a hollow plastic-steel winding pipe, which can solve the problem in the cooling process.

in order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose: a processing method of a hollow plastic steel winding pipe specifically comprises the following processing steps:

S1 mixing: mixing polyethylene particles and color master batch by using a mixer to prepare a mixture, wherein the weight ratio of the polyethylene particles to the color master batch in the mixture is 100: 2;

s2 extrusion: feeding the mixture into a single-screw extruder, and simultaneously putting the steel belt into a mouth die of the extruder to perform composite extrusion with the molten mixture to prepare a profile;

s3 cooling and shaping: cooling the section bar by using a cooling device to form a continuous strip;

s4 cutting: cutting the continuous strip into preset lengths by using a cutting machine to obtain a finished product;

And S5 storage: uniformly packaging the finished products, and putting the finished products into a warehouse for storage;

The cooling device used in the cooling and shaping process comprises a box body, a cooling sleeve, a sizing sleeve and a cooling mechanism, wherein the box body is of a hollow structure, the cooling sleeve is arranged in the box body, the sizing sleeves are symmetrically arranged at the left end and the right end of the cooling sleeve, the cooling mechanism is arranged in the middle of the cooling sleeve, water inlets are formed in the front outer wall, the rear outer wall, the upper outer wall and the lower outer wall of the box body, and a water outlet is formed in; external existing hydrologic cycle equipment that has between water inlet and the delivery port, wherein:

The cooling jacket comprises a main sleeve, a telescopic plate and a linkage plate, wherein the main sleeve is of a hollow cylinder structure, seven groups of mounting ports are uniformly formed in the side wall of the main sleeve from left to right, the mounting ports of the same group are uniformly arranged along the circumferential direction of the main sleeve, the adjacent mounting ports in the same group are communicated with each other, the telescopic plate is mounted in the mounting ports in a sliding fit mode, the adjacent telescopic plates in the same group are connected through the linkage plate, the telescopic plate is provided with water receiving ports, the positions of the water receiving ports correspond to the positions of water inlets one by one, and water leakage holes are symmetrically formed in the front side and the rear side of the upper end of the;

the cooling mechanism comprises a water inlet pipe, a cooling pipe, a protective cover, partition plates, adjusting screws and a connecting plate, wherein the water inlet pipe is arranged between a water inlet and a water receiving port corresponding to the position, the lower end of the water inlet pipe is connected with the upper end of the cooling pipe, the cooling pipe is positioned inside a main sleeve, the partition plates are arranged between adjacent water inlet pipes, the partition plates are arranged between the inner wall of a box body and the outer wall of the main sleeve, the adjacent cooling pipes are connected through the connecting plate, round holes are uniformly formed in the connecting plate, adjusting screw holes are formed in the middles of the two partition plates positioned at the leftmost end and the rightmost end of the box body, the adjusting screws are arranged in the adjusting screw holes in a threaded connection mode, the lower ends of; the cooling water flows from hydrologic cycle equipment back, pass through the water inlet in proper order, the inlet tube, water receiving mouth and cooling tube, after spouting in the cooling tube in the cooling water, just can cool off hollow plastic steel winding pipe, the back is flowed down from hollow plastic steel winding pipe lateral wall to the cooling water, return in the hydrologic cycle equipment again through the delivery port, thereby realize the cyclic utilization of cooling water, the protection casing can prevent the coolant liquid outflow in the course of the work, guarantee can inflow part coolant liquid in a aqua storage tank and No. two aqua storage tanks, can reach the purpose of adjusting the connecting plate position through rotating adjusting screw, thereby adjust the cooling tube position according to the actual size of hollow plastic steel winding pipe, in order to guarantee the cooling effect.

Preferably, the sizing sleeve comprises connecting screw rods, connecting sleeves, connecting blocks and sleeve bodies, the connecting screw rods are symmetrically arranged on the inner wall of the box body in a left-right mode and are divided into two groups, the connecting screw rods in the same group are uniformly arranged along the direction of the inner wall of the box body, the lower ends of the connecting screw rods are connected with the inner wall of the upper end of the connecting sleeves in a threaded connection mode, the lower ends of the connecting sleeves are arranged on the connecting blocks, and the connecting blocks are arranged on the outer wall of; when installing the cover body, the reply connecting sleeve is pressed to dock connecting screw rod lower extreme and connecting sleeve, loosen the back with connecting sleeve, in the connecting screw rod lower extreme just stretched into connecting sleeve, rotate the connecting block this moment alright with connecting screw rod and connecting sleeve zonulae occludens, can change the cover body according to the actual size of cavity plastic steel winding pipe, and the cover body is torn open and is traded conveniently, and the practicality is high.

preferably, the connecting sleeve comprises a fixed cylinder, a telescopic cylinder and a telescopic spring, the fixed cylinder is installed on the connecting block, a telescopic groove is formed in the fixed cylinder, the telescopic cylinder is installed at the upper end of the telescopic groove in a sliding fit mode, the telescopic spring is connected between the lower end of the telescopic cylinder and the lower end of the fixed cylinder, and threads are formed in the inner wall of the telescopic cylinder.

preferably, in the telescopic plate, the front end of the telescopic plate positioned at the upper end of the main sleeve is provided with a first water storage tank, the rear end of the telescopic plate is provided with a second water storage tank, the shape of the first water storage tank is the same as that of the second water storage tank, the rear side of the upper end of the first water storage tank and the middle part of the upper end of the second water storage tank are both provided with water inlet holes, the upper end of the water inlet hole formed in the second water storage tank is attached to the inner wall of the main sleeve, and the front side of the lower end of the first water storage tank and the rear side of the lower end; when the cooling water is sprayed out from the water spraying branch pipe arranged on the water inlet pipe, part of the cooling water flows into the first water storage tank, so that the weight of the front end of the expansion plate is greater than that of the rear end of the expansion plate, the expansion plate rotates forwards for a certain distance, in the rotation process of the expansion plate, the water inlet hole arranged on the second water storage tank gradually emerges from the main sleeve body, meanwhile, the distance between the lower water hole arranged on the first water storage tank and the water leakage hole arranged on the main sleeve is gradually reduced, when the two are overlapped, the cooling water in the first water storage tank can leak out, when the weight of the front end of the expansion plate is less than that of the rear end thereof, the expansion plate rotates backwards to reciprocate, under the action of the linkage plate, the expansion plate at the upper end of the main sleeve drives the other expansion plates to simultaneously rotate back and forth in a reciprocating manner, so as to enlarge the contact area between the cooling water sprayed out of the cooling pipe and the hollow plastic steel winding pipe, thereby improving the cooling speed and the cooling uniformity.

Preferably, in the water inlet pipe, the left side and the right side of the water inlet pipe positioned at the upper end of the main sleeve are symmetrically provided with water spraying ports, and the outer sides of the water spraying ports are provided with water spraying branch pipes.

preferably, the cooling pipe is of an up-down telescopic structure, clamping blocks are symmetrically arranged on the left side and the right side of the cooling pipe, and the clamping blocks are connected with the connecting plate in a sliding fit mode.

preferably, the connecting plate is of a circular arc surface structure, and a circle where the inner contour line and the outer contour line of the connecting plate are concentric with a circle where the outer contour line of the main sleeve is located.

the invention has the beneficial effects that:

1. the invention adopts a spraying method to cool and shape the hollow plastic steel pipe, and the cooling pipe can rotate in a reciprocating way within a certain range, thereby enlarging the contact area of cooling water and the pipe, improving the cooling uniformity and ensuring the uniform stress of the circumference of the pipe;

2. the cooling jacket designed by the invention can enable the telescopic plate at the upper end of the main sleeve to drive the other telescopic plates to simultaneously perform reciprocating rotation back and forth under the action of the linkage plate so as to enlarge the contact area between cooling water sprayed out of the cooling pipe and the hollow plastic steel winding pipe, thereby improving the cooling speed and the cooling uniformity;

3. the cooling mechanism designed by the invention can realize the recycling of cooling water, the protective cover can prevent cooling liquid from flowing outwards in the working process, partial cooling liquid can be ensured to flow into the first water storage tank and the second water storage tank, the purpose of adjusting the position of the connecting plate can be achieved by rotating the adjusting screw, and therefore, the position of the cooling pipe can be adjusted according to the actual size of the hollow plastic steel winding pipe, and the cooling effect is ensured.

Drawings

the invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a process diagram of the present invention;

FIG. 2 is a schematic view of the structure of the cooling apparatus of the present invention;

FIG. 3 is a schematic view of the structure between the cooling jacket and the cooling pipe of the present invention;

FIG. 4 is an enlarged view of the invention taken in the direction S of FIG. 1;

FIG. 5 is an enlarged view of the invention in the y-direction of FIG. 1;

FIG. 6 is an enlarged view of the invention taken in the direction of N in FIG. 3;

FIG. 7 is an enlarged view of a portion of the invention in the direction X of FIG. 1.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

As shown in fig. 1 to 7, a method for processing a hollow plastic-steel wound pipe specifically comprises the following processing steps:

s1 mixing: mixing polyethylene particles and color master batch by using a mixer to prepare a mixture, wherein the weight ratio of the polyethylene particles to the color master batch in the mixture is 100: 2;

S2 extrusion: feeding the mixture into a single-screw extruder, and simultaneously putting the steel belt into a mouth die of the extruder to perform composite extrusion with the molten mixture to prepare a profile;

S3 cooling and shaping: cooling the section bar by using a cooling device to form a continuous strip;

S4 cutting: cutting the continuous strip into preset lengths by using a cutting machine to obtain a finished product;

And S5 storage: uniformly packaging the finished products, and putting the finished products into a warehouse for storage;

The cooling device used in the cooling and shaping process comprises a box body 1, a cooling sleeve 2, a sizing sleeve 3 and a cooling mechanism 4, wherein the box body 1 is of a hollow structure, the cooling sleeve 2 is installed in the box body 1, the sizing sleeves 3 are symmetrically installed at the left end and the right end of the cooling sleeve 2, the cooling mechanism 4 is installed in the middle of the cooling sleeve 2, water inlets 1a are formed in the front outer wall, the rear outer wall, the upper outer wall and the lower outer wall of the box body 1, and a water outlet 1b is formed in the; be external between water inlet 1a and the delivery port 1b and have current hydrologic cycle equipment, wherein:

the cooling jacket 2 comprises a main sleeve 21, expansion plates 22 and a linkage plate 23, wherein the main sleeve 21 is of a hollow cylinder structure, seven groups of mounting ports are uniformly formed in the side wall of the main sleeve 21 from left to right, the mounting ports of the same group are uniformly arranged along the circumferential direction of the main sleeve 21, adjacent mounting ports in the same group are communicated with each other, the expansion plates 22 are mounted in the mounting ports in a sliding fit manner, the adjacent expansion plates 22 in the same group are connected with each other through the linkage plate 23, the expansion plates 22 are provided with water receiving ports 221, the positions of the water receiving ports 221 correspond to the positions of water inlets 1a one by one, and water leakage holes 21a are symmetrically formed in the front side and the rear side of the upper end of;

the cooling mechanism 4 comprises a water inlet pipe 41, cooling pipes 42, a protective cover 43, partition plates 44, adjusting screws 45 and a connecting plate 46, the water inlet pipe 41 is arranged between a water inlet 1a and a water receiving port 221 corresponding to the position, the lower end of the water inlet pipe 41 is connected with the upper end of the cooling pipe 42, the cooling pipe 42 is positioned in the main sleeve 21, the partition plates 44 are arranged between the adjacent water inlet pipes 41, the partition plates 44 are arranged between the inner wall of the box body 1 and the outer wall of the main sleeve 21, the adjacent cooling pipes 42 are connected through the connecting plate 46, round holes are uniformly formed in the connecting plate 46, adjusting screw holes are formed in the middles of the two partition plates 44 positioned at the leftmost end and the rightmost end of the box body 1, the adjusting screws 45 are arranged, a protective cover 43 is arranged outside the water inlet pipe 41 positioned at the upper end of the main sleeve 21, and the protective cover 43 is arranged on the main sleeve 21; after the cooling water flows out from the water circulation equipment, the cooling water passes through the water inlet 1a in proper order, the inlet tube 41, water receiving port 221 and cooling tube 42, after the cooling water is sprayed out from the cooling tube 42, the hollow plastic steel winding tube can be cooled, after the cooling water flows down from the side wall of the hollow plastic steel winding tube, the cooling water returns back to the water circulation equipment again through the water outlet 1b, thereby the cyclic utilization of the cooling water is realized, the protective cover 43 can prevent the cooling liquid from flowing out in the working process, the part of the cooling liquid can flow into the first water storage tank 22a and the second water storage tank 22b, the purpose of adjusting the position of the connecting plate 46 can be achieved by rotating the adjusting screw 45, thereby the position of the cooling tube 42 is adjusted according to the actual size of the hollow plastic steel winding tube, and the cooling effect is ensured.

the sizing sleeve 3 comprises connecting screw rods 31, connecting sleeves 32, connecting blocks 33 and a sleeve body 34, the connecting screw rods 31 are bilaterally symmetrically divided into two groups and are arranged on the inner wall of the box body 1, the connecting screw rods 31 in the same group are uniformly arranged along the inner wall of the box body 1, the lower ends of the connecting screw rods 31 are connected with the inner wall of the upper end of the connecting sleeves 32 in a threaded connection mode, the lower ends of the connecting sleeves 32 are arranged on the connecting blocks 33, and the connecting blocks 33 are arranged on the outer wall of the sleeve body 34 through; when installing the cover body 34, reply connecting sleeve 32 presses to dock connecting screw 31 lower extreme and connecting sleeve 32, loosen connecting sleeve 32 the back, in connecting screw 31 lower extreme just stretched into connecting sleeve 32, rotate connecting block 33 this moment alright with connecting screw 31 and connecting sleeve 32 zonulae occludens, can change cover body 34 according to the actual size of cavity plastic steel winding pipe, and cover body 34 is torn open and is traded conveniently, and the practicality is high.

connecting sleeve 32 includes solid fixed cylinder 321, telescopic cylinder 322 and expanding spring 323, and solid fixed cylinder 321 installs on connecting block 33, has seted up flexible groove on the solid fixed cylinder 321, and telescopic cylinder 322 is installed through sliding fit mode to the flexible groove upper end, is connected with expanding spring 323 between telescopic cylinder 322 lower extreme and the solid fixed cylinder 321 lower extreme, has seted up the screw thread on the telescopic cylinder 322 inner wall.

In the expansion plate 22, the front end of the expansion plate 22 positioned at the upper end of the main sleeve 21 is provided with a first water storage tank 22a, the rear end of the expansion plate 22 is provided with a second water storage tank 22b, the shape of the first water storage tank 22a is the same as that of the second water storage tank 22b, the rear side of the upper end of the first water storage tank 22a and the middle part of the upper end of the second water storage tank 22b are both provided with water inlet holes 22c, the upper ends of the water inlet holes 22c formed in the second water storage tank 22b are attached to the inner wall of the main sleeve 21, and the front side of the lower end of the first water storage tank 22a and the rear side of the lower end of the; when cooling water is sprayed out from the water spray branch pipe 41a arranged on the water inlet pipe 41, part of the cooling water flows into the first water storage tank 22a, so that the weight of the front end of the expansion plate 22 is greater than the weight of the rear end of the expansion plate, the expansion plate 22 rotates forwards for a certain distance, in the rotation process of the expansion plate 22, the water inlet hole 22c arranged on the second water storage tank 22b is gradually exposed out of the main sleeve body 34, meanwhile, the distance between the water outlet hole 22d arranged on the first water storage tank 22a and the water leakage hole 21a arranged on the main sleeve 21 is gradually reduced, when the two are superposed, the cooling water in the first water storage tank 22a can leak out, when the weight of the front end of the expansion plate 22 is less than the weight of the rear end of the expansion plate 22, the expansion plate 22 rotates backwards to reciprocate, under the action of the linkage plate 23, the expansion plate 22 at the upper end of the main sleeve 21 drives the other expansion plates 22 to simultaneously reciprocate forwards and backwards, so as to enlarge the contact area, thereby improving the cooling speed and the cooling uniformity.

in the water inlet pipe 41, water spray nozzles are symmetrically arranged on the left side and the right side of the water inlet pipe 41 positioned at the upper end of the main sleeve 21, and a water spray branch pipe 41a is arranged outside the water spray nozzles.

the cooling tube 42 is of a vertically telescopic structure, the left side and the right side of the cooling tube 42 are symmetrically provided with the fixture blocks 421, and the fixture blocks 421 are connected with the connecting plate 46 in a sliding fit manner.

the connecting plate 46 has a circular arc surface structure, and a circle of the inner and outer contour lines of the connecting plate 46 and a circle of the outer contour line of the main sleeve 21 have a concentric structure.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.