CN212498771U - Collecting test tube for detecting virus or bacteria - Google Patents

Abstract

The utility model provides a collect test tube for detecting virus or bacterium, includes body and lid, the lid can take off the lid and put on the body opening, its characterized in that: the sealing structure comprises a cover body and is characterized in that a cover body convex part capable of being plugged into a pipe body opening to seal the pipe body opening is arranged on the bottom surface of an inner cavity of the cover body, an inner cavity of the cover body between the outer wall of the cover body convex part and the inner wall of the cover body is a sealing ring cavity capable of being inserted into a pipe wall of the pipe body opening, connecting threads are arranged on the side wall of the sealing ring cavity, sealing threads are arranged on the pipe wall corresponding to the connecting threads, the pipe body and the cover body are connected together in a threaded mode, a blocking ring is arranged on the pipe wall below the sealing threads, and when the cover body is connected onto the pipe. The utility model has the advantages that: the test tube is sealed effectual, safe in utilization.

Description

Collecting test tube for detecting virus or bacteria

Technical Field

The utility model relates to a test tube preparation technical field especially indicates a collection test tube for detecting virus or bacterium.

Background

There is an invention patent application CN200880008926.8 entitled "method for preserving viral particles" which discloses a method for preserving viral particles comprising providing an aqueous solution containing one or more sugars, polyethyleneimine and said viral particles, wherein the concentration of polyethyleneimine is 15 μm or less on a number average molecular weight basis, and the sugar concentration or the total sugar concentration in the case of multiple sugars is higher than 0.1 m; and drying the solution to form an amorphous solid matrix comprising the viral particles. However, this invention does not disclose a sealing device for storing viruses, and the viruses to be stored in this invention are live viruses or dead viruses, the live viruses have high infectivity, and an improper sealing method may cause leakage of the viruses to cause a safety accident, so that it is necessary to further provide a sealing device for storing viruses on the basis of this method.

Disclosure of Invention

The utility model aims to solve the technical problem that a collection test tube for detecting virus or bacterium to above-mentioned prior art current situation and simple structure, sealed effectual is provided.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: this a collect test tube for detecting virus or bacterium, including body and lid, the lid can take off the lid and put on the body opening, its characterized in that: the sealing structure comprises a cover body and is characterized in that a cover body convex part capable of being plugged into a pipe body opening to seal the pipe body opening is arranged on the bottom surface of an inner cavity of the cover body, an inner cavity of the cover body between the outer wall of the cover body convex part and the inner wall of the cover body is a sealing ring cavity capable of being inserted into a pipe wall of the pipe body opening, connecting threads are arranged on the side wall of the sealing ring cavity, sealing threads are arranged on the pipe wall corresponding to the connecting threads, the pipe body and the cover body are connected together in a threaded mode, a blocking ring is arranged on the pipe wall below the sealing threads, and when the cover body is connected onto the pipe.

As an improvement, the bottom surface of the convex part of the cover body and the top surface of the cover body are respectively provided with a concave part which can reduce the weight of the cover body and can increase the elasticity of the side wall of the convex part of the cover body so as to ensure that the convex part of the cover body is smoothly inserted into the opening of the pipe body.

The cover body is further improved, the wall thickness of each part of the cover body except the connecting thread on the cover body is the same, and the cover body, the convex part of the cover body and the connecting thread are of an integral structure formed by injection molding.

The improved structure is characterized in that convex teeth which facilitate the screwing of the cover body are arranged on the outer wall of the cover body; the convex teeth are evenly distributed on the outer wall of the cover body, and the length of the convex teeth is 4-6 mm smaller than the height of the cover body.

The specific structure of the cover body manufacturing mold for injection molding the cover body, the cover body convex part and the connecting threads together is that the cover body manufacturing mold comprises a second upper mold body and a second lower mold body which can be separated from each other, a second injection port is arranged at the top of the second upper mold body, a forming concave part matched with the appearance of the cover body is arranged on the bottom surface of the second upper mold body, the second injection port is communicated with the forming concave part, a forming convex part matched with the shape of the inner cavity of the cover body is convexly arranged at the position, corresponding to the forming concave part, on the top surface of the second lower mold body, when the second upper mold body is matched with the second lower mold body, the forming convex part is positioned in the forming concave part, and a forming cavity matched with the shape of the cover body is arranged between the inner wall of the forming concave part and the; a flow guide cavity is arranged in the second upper die body, the second injection molding openings of the flow guide cavity are communicated, shunting holes are distributed at intervals on the bottom surface of the flow guide cavity, and each shunting hole is communicated with one corresponding molding cavity; the second upper die body comprises a fourth upper die plate, a fifth upper die plate and a sixth upper die plate which are sequentially arranged in an up-down superposition manner, the second injection molding opening is positioned on the fourth upper die plate, an upper die plate concave part is arranged at the top of the sixth upper die plate, a guide plate is arranged in the upper die plate concave part, a guide groove is arranged on the top surface of the guide plate, the guide cavity is a cavity structure formed by covering the fifth upper die plate on the guide groove, the shunting hole is positioned on the bottom surface of the guide groove, and a die plate through hole for communicating the guide groove and the second injection molding opening is arranged on the fifth upper die plate; an upper plug-in body is distributed on the bottom surface of the sixth upper die plate, a lower plug-in body is distributed on the top surface of the second lower die body, and when the bottom surface of the sixth upper die plate is attached to the top surface of the second lower die body, the upper plug-in body and the lower plug-in body are connected together; the second lower die body is formed by overlapping five lower die plates, a mounting cavity of a transmission gear, a driving motor and a driving gear is arranged in the die body of the second lower die body, the transmission gear is concentrically connected to the lower portion of the forming convex portion, the forming convex portion can be detachably connected in the second lower die body, the driving motor is in transmission connection with the driving gear, and the transmission gear is meshed with the driving gear.

As a refinement, the tube is a transparent tube.

As an improvement, the bottom of the pipe body is provided with a bottom opening, a liquid collecting bucket for closing the bottom opening is arranged on the bottom opening, and the bottom surface of the liquid collecting bucket is positioned in the inner cavity of the pipe body; the pipe body and the liquid collecting hopper are of an integral structure formed by injection molding.

The specific structure of the pipe body manufacturing mold for injection molding the pipe body and the liquid collecting hopper together is that the pipe body manufacturing mold comprises a first upper mold body and a first lower mold body which can be separated from each other, an injection molding opening is arranged at the top of the first upper mold body, a shaping concave part which is matched with the shape of the pipe body is arranged on the bottom surface of the first upper mold body, the injection molding opening is communicated with the shaping concave part, a shaping convex part which is matched with the shape of the inner cavity of the pipe body is convexly arranged at the corresponding position of the shaping concave part on the top surface of the first lower mold body, when the first upper mold body is opposite to the first lower mold body, the shaping convex part is positioned in the shaping concave part, a shaping cavity which is matched with the shape of the pipe body is arranged between the inner wall of the shaping concave part and the outer wall of the shaping convex part, a flow dividing cavity is arranged in the first upper mold body, the flow dividing cavity is, each outflow hole is communicated with a corresponding shaping cavity; the first upper die body comprises a first upper die plate, a second upper die plate and a third upper die plate which are sequentially arranged in an up-down overlapping mode, the injection molding port is positioned on the first upper die plate, an upper die plate groove is formed in the top of the third upper die plate, a flow distribution plate is arranged in the upper die plate groove, a flow distribution groove is formed in the top surface of the flow distribution plate, the flow distribution cavity is a cavity structure formed by covering the second upper die plate on the flow distribution groove, the outflow hole is positioned on the bottom surface of the flow distribution groove, and a plate body through hole for communicating the flow distribution groove and the injection molding port is formed in the second upper die plate; positioning convex parts are distributed on the bottom surface of the third upper template, positioning concave parts are distributed on the top surface of the first lower die body, and when the bottom surface of the first upper die body is attached to the top surface of the first lower die body, the positioning convex parts are inserted into the positioning concave parts; the first lower die body comprises a first lower die plate, a second lower die plate, a third lower die plate and a fourth lower die plate which are sequentially arranged in an up-down overlapping mode, the bottom of the shaping convex portion is connected to the second lower die plate, the top of the shaping convex portion penetrates through the first lower die plate and extends out of the top surface of the first lower die plate, the bottom surface of the third lower die plate is connected to a supporting column of the fourth lower die plate, and a buffer spring is sleeved on the supporting column.

As an improvement, the connection part of the thread roots of the adjacent connecting threads is a plane, the diameter of the section circle of the horizontal section where the thread root of the connecting thread is located is smaller than that of the section circle of the horizontal section where the thread top of the sealing thread is located, and when the cover body is screwed on the opening of the pipe body in a sealing mode, the top end of the sealing thread deforms and abuts against the plane.

As an improvement, an inner wall notch which can be sleeved on the injection mold of the cover body to fix the cover body is arranged on the inner wall of the cover body.

Compared with the prior art, the utility model has the advantages of: the adopted cover body is provided with a cover body convex part which can be inserted into the opening of the pipe body, so that the connection sealing performance of the cover body and the pipe body is improved, the concave part on the cover body enables the cover body convex part to be smoothly inserted into the opening of the pipe body, the sealing effect is increased by utilizing the resilience force of the side wall of the cover body forming the concave part, and meanwhile, the weight of the cover body is reduced; a baffle ring is arranged on the outer wall of the tube body and is in abutting contact with the bottom surface of the cover body to form a second seal, so that viruses or bacteria are prevented from leaking from the test tube, and the use safety is guaranteed; the tube body and the cover body of the test tube are respectively manufactured by two sets of molds, so that the shape required by injection molding is better met, the yield is high, and the using effect is good; a plurality of tube bodies or cover bodies can be manufactured in two sets of dies at one time through the shunting structures, so that the manufacturing efficiency of the test tube is improved, and the material waste is reduced; the forming convex part in the cover body manufacturing mould can adopt a rotating structure, the concentricity of the inner cavity of the cover body and the thread is improved, and the sealing effect of the cover body is further improved.

Drawings

Fig. 1 is a perspective view of an embodiment of the present invention;

FIG. 2 is a top view of the cover of FIG. 1;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a front perspective view of the tube of FIG. 1;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4

FIG. 6 is a perspective view of a mold for forming the tubular body of FIG. 1;

FIG. 7 is a top view of FIG. 6 with the sealing plug removed;

FIG. 8 is a cross-sectional view taken along line C-C of FIG. 7;

FIG. 9 is an exploded view of the structure of FIG. 6;

FIG. 10 is a cross-sectional view of the first casing shown in FIG. 6 with portions broken away;

FIG. 11 is a perspective view of the mold for making the cover of FIG. 1;

FIG. 12 is a top view of FIG. 11 with the fill plug removed;

FIG. 13 is a cross-sectional view taken along line D-D of FIG. 12;

FIG. 14 is a perspective view of FIG. 13 with the fourth and fifth upper die plates removed;

FIG. 15 is a perspective view of FIG. 14 showing the drive gear in meshing relationship with the transfer gear;

FIG. 16 is an enlarged view of portion I of FIG. 8;

FIG. 17 is an enlarged view of section II of FIG. 9;

FIG. 18 is an enlarged view of section III of FIG. 13;

fig. 19 is an enlarged view of the portion IV in fig. 14.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 19, the collecting test tube for detecting virus or bacteria of the present embodiment includes a tube body 2 and a cover body 1, wherein the cover body 1 can be detached and covered on an opening of the tube body, a cover body convex portion 11 capable of being plugged into the opening of the tube body 2 to seal the opening of the tube body is disposed on a bottom surface of an inner cavity of the cover body 1, the inner cavity of the cover body between an outer wall of the cover body convex portion 11 and an inner wall of the cover body is a sealing ring cavity 12 capable of being inserted into a tube wall of the opening of the tube body, a connecting thread 13 is disposed on a side wall of the sealing ring cavity 12, a sealing thread 21 is disposed on a tube wall corresponding to the connecting thread 13, the tube body 2 is screwed with the cover body 1, a retaining ring 22 is disposed on a tube wall below the sealing thread 21, and when the cover. The bottom surface of the lid body protrusion 11 and the top surface of the lid body 1 are respectively provided with a recess 14 which can reduce the weight of the lid body 1 and increase the elasticity of the side wall of the lid body protrusion 11 so that the lid body protrusion 11 can be smoothly inserted into the opening of the pipe body. The wall thickness of the cover body 1 is the same except for the connecting thread 13, and the cover body 1, the cover body convex part 11 and the connecting thread 13 are of an integral structure formed by injection molding. The outer wall of the cover body 1 is provided with convex teeth 15 which facilitate the screwing of the cover body 1; the convex teeth 15 are evenly distributed on the outer wall of the cover body 1, and the length of the convex teeth 15 is 4-6 mm smaller than the height of the cover body 1.

The specific structure of the cover body manufacturing mold 3 for injection molding the cover body 1, the cover body convex part 11 and the connecting thread 13 together is that the mold comprises a second upper mold body 31 and a second lower mold body 32 which can be separated from each other, a second injection port 311 is arranged at the top of the second upper mold body 31, a forming concave part matched with the shape of the cover body 1 is arranged on the bottom surface of the second upper mold body 31, the second injection port 311 is communicated with the forming concave part, a forming convex part 321 matched with the shape of the inner cavity of the cover body is convexly arranged at the position, corresponding to the forming concave part, on the top surface of the second lower mold body 32, when the second upper mold body 31 is aligned with the second lower mold body 32, the forming convex part 321 is positioned in the forming concave part, and a forming cavity 312 matched with the shape of the cover body 1 is arranged between the inner wall of the forming; a flow guide cavity 33 is formed in the second upper die body 31, the flow guide cavity 33 is communicated with the second injection molding port 311, shunting holes 34 are distributed at intervals on the bottom surface of the flow guide cavity 33, and each shunting hole 34 is communicated with a corresponding molding cavity 312; the second upper die body 31 comprises a fourth upper die plate 301, a fifth upper die plate 302 and a sixth upper die plate 303 which are sequentially arranged in an up-down overlapping manner, the second injection port 311 is positioned on the fourth upper die plate 301, an upper die plate concave part is arranged at the top of the sixth upper die plate 303, a guide plate 35 is arranged in the upper die plate concave part, a guide groove is arranged on the top surface of the guide plate 35, the guide cavity 33 is a cavity structure formed by covering the fifth upper die plate 302 on the guide groove, the shunting hole 34 is positioned on the bottom surface of the guide groove, and a die plate through hole for communicating the guide groove with the second injection port 311 is arranged on the fifth upper die plate 302; an upper plug-in body 304 is distributed on the bottom surface of the sixth upper die plate 303, a lower plug-in body 305 is distributed on the top surface of the second lower die body 32, and when the bottom surface of the sixth upper die plate 303 is attached to the top surface of the second lower die body 32, the upper plug-in body 304 and the lower plug-in body 305 are connected together; the second lower die body 32 is formed by overlapping five lower die plates, a transmission gear 322, a driving motor and a mounting cavity of a driving gear 323 are arranged in the die body of the second lower die body 32, the transmission gear 322 is concentrically connected with the lower part of the forming convex part 321, the forming convex part 321 is detachably connected in the second lower die body 32, the driving motor is in transmission connection with the driving gear 323, and the transmission gear 322 is meshed with the driving gear 323.

The tube 2 is a transparent tube. The bottom of the tube body 2 is provided with a bottom opening, a liquid collecting hopper 23 for closing the bottom opening is arranged on the bottom opening, and the bottom surface of the liquid collecting hopper 23 is positioned in the inner cavity of the tube body; the pipe body 2 and the liquid collecting hopper 23 are of an integral structure formed by injection molding. The specific structure of the pipe manufacturing mold 4 for injection molding the pipe body 2 and the liquid collecting hopper 23 together is that the pipe manufacturing mold 4 comprises a first upper mold body 41 and a first lower mold body 42 which can be separated from each other, an injection opening 411 is arranged at the top of the first upper mold body 41, a shaping concave part which is matched with the shape of the pipe body is arranged on the bottom surface of the first upper mold body 41, the injection opening 411 is communicated with the shaping concave part, a shaping convex part 421 which is matched with the shape of the inner cavity of the pipe body is convexly arranged at the position, corresponding to the shaping concave part, on the top surface of the first lower mold body 42, a shaping convex part 421 is arranged at the position, when the first upper mold body 41 is aligned with the first lower mold body 42, the shaping convex part 421 is arranged in the shaping concave part, a shaping cavity 412 which is matched with the shape of the pipe body 2 is arranged between the inner wall of the shaping concave part and the outer wall of the shaping convex part 421, a, each outflow hole 44 communicates with a corresponding sizing chamber 412; the first upper die body 41 comprises a first upper die plate 401, a second upper die plate 402 and a third upper die plate 403 which are sequentially overlapped up and down, the injection molding port 411 is positioned on the first upper die plate 401, an upper die plate groove is arranged at the top of the third upper die plate 403, a flow distribution plate 45 is arranged in the upper die plate groove, a flow distribution groove is arranged on the top surface of the flow distribution plate 45, a flow distribution cavity 43 is a cavity structure formed by covering the second upper die plate 402 on the flow distribution groove, the outflow hole 44 is positioned on the bottom surface of the flow distribution groove, and a plate body through hole for communicating the flow distribution groove with the injection molding port 411 is arranged on the second upper die plate 402; positioning convex parts 404 are distributed on the bottom surface of the third upper template 403, positioning concave parts 405 are distributed on the top surface of the first lower die body 42, and when the bottom surface of the first upper die body 41 is attached to the top surface of the first lower die body 42, the positioning convex parts 404 are inserted into the positioning concave parts 405; first die body 42 is including first lower bolster, second lower bolster, third lower bolster and the fourth lower bolster that coincide in proper order and set up from top to bottom, and the bottom of design convex part 421 is connected on the second lower bolster, and the top of design convex part 421 passes first lower bolster and stretches out first lower bolster top surface, and the bottom surface of third lower bolster is connected on the support column of fourth lower bolster, has put buffer spring 422 on the cover of support column. The root of the adjacent connecting thread 13 is a plane 131, the diameter of the cross section circle of the horizontal cross section where the root of the connecting thread 13 is located is smaller than that of the cross section circle of the horizontal cross section where the top of the sealing thread 21 is located, and when the cover body 1 is screwed on the opening of the pipe body in a sealing mode, the top of the sealing thread 21 deforms and abuts against the plane 131. An inner wall notch 16 which can be sleeved on the cover body injection mold to fix the cover body 1 is arranged on the inner wall of the cover body 1. The first upper mold 41 and the first lower mold 42 may be coupled together by a reinforcing bar 6, the top of the reinforcing bar 6 is coupled to the first upper mold 401 by screws, and the bottom of the reinforcing bar 6 is coupled to the second lower mold by screws. A sealing plug 5 for sealing the corresponding outlet hole 44 when the tube body manufacturing mold 4 is not used is detachably inserted into the outlet hole 44, and a filling plug for sealing the corresponding tap hole 34 when the cover body manufacturing mold 3 is not used is detachably inserted into the tap hole 34.

Claims (10)

1. The utility model provides a collect test tube for detecting virus or bacterium, includes body (2) and lid (1), lid (1) can take off the lid and put on the body opening, its characterized in that: be provided with on the inner chamber bottom surface of lid (1) and can fill in body (2) opening and sealed body open-ended lid convex part (11), be the sealed ring chamber (12) that can insert body open-ended pipe wall in the lid inner chamber between lid convex part (11) outer wall and lid inner wall be provided with connecting thread (13) on the lateral wall of sealed ring chamber (12), be provided with sealed screw thread (21) on the pipe wall corresponding with connecting thread (13), body (2) and lid (1) spiro union are in the same place, are provided with on the pipe wall of sealed screw thread (21) below and keep off ring (22), work as when lid (1) sealed spiro union is on the body opening, the sealed top in bottom surface of lid (1) touches on keeping off ring (22).

2. The collection tube of claim 1, wherein: the bottom surface of the convex part (11) of the cover body and the top surface of the cover body (1) are respectively provided with a concave part (14) which can reduce the weight of the cover body (1) and can increase the elasticity of the side wall of the convex part (11) of the cover body so that the convex part (11) of the cover body can be smoothly inserted into the opening of the pipe body.

3. The collection tube of claim 2, wherein: the cover body (1) is identical in wall thickness at all parts except the connecting thread (13), and the cover body (1), the cover body convex part (11) and the connecting thread (13) are of an integral structure formed by injection molding.

4. A collection tube according to claim 3, wherein: the outer wall of the cover body (1) is provided with convex teeth (15) which facilitate the screwing of the cover body (1); the convex teeth (15) are evenly distributed on the outer wall of the cover body (1), and the length of the convex teeth (15) is 4-6 mm smaller than the height of the cover body (1).

5. A collection tube according to claim 4, wherein: the specific structure of the cover body manufacturing mold for injection molding the cover body (1), the cover body convex part (11) and the connecting thread (13) together comprises a second upper mold body (31) and a second lower mold body (32) which can be separated from each other, a second injection molding opening (311) is arranged at the top of the second upper mold body (31), a molding concave part matched with the shape of the cover body (1) is arranged on the bottom surface of the second upper mold body (31), the second injection molding opening (311) is communicated with the molding concave part, a molding convex part (321) matched with the shape of the inner cavity of the cover body is convexly arranged on the top surface of the second lower die body (32) at the position corresponding to the molding concave part, when the second upper mold body (31) is matched with the second lower mold body (32), the molding convex part (321) is positioned in the molding concave part, a molding cavity (312) matched with the shape of the cover body (1) is arranged between the inner wall of the molding concave part and the outer wall of the molding convex part (321); a flow guide cavity (33) is arranged in the second upper die body (31), the flow guide cavity (33) is communicated with the second injection molding port (311), shunting holes (34) are distributed at intervals on the bottom surface of the flow guide cavity (33), and each shunting hole (34) is communicated with a corresponding molding cavity (312); the second upper die body (31) comprises a fourth upper die plate (301), a fifth upper die plate (302) and a sixth upper die plate (303) which are sequentially arranged in an up-down overlapping mode, the second injection molding opening (311) is positioned on the fourth upper die plate (301), an upper die plate concave part is arranged at the top of the sixth upper die plate (303), a guide plate (35) is arranged in the upper die plate concave part, a guide groove is arranged on the top surface of the guide plate (35), the guide cavity (33) is a cavity structure formed by covering the fifth upper die plate (302) on the guide groove, the diversion hole (34) is positioned on the bottom surface of the guide groove, and a die plate through hole for communicating the guide groove with the second injection molding opening (311) is formed in the fifth upper die plate (302); an upper plug-in body (304) is distributed on the bottom surface of the sixth upper die plate (303), a lower plug-in body (305) is distributed on the top surface of the second lower die body (32), and when the bottom surface of the sixth upper die plate (303) is attached to the top surface of the second lower die body (32), the upper plug-in body (304) and the lower plug-in body (305) are connected together; the second lower die body (32) is formed by overlapping five lower die plates, a transmission gear (322), a driving motor and a mounting cavity of a driving gear (323) are arranged in the die body of the second lower die body (32), the transmission gear (322) is concentrically connected to the lower part of a forming convex part (321), the forming convex part (321) can be detachably connected in the second lower die body (32), the driving motor is in transmission connection with the driving gear (323), and the transmission gear (322) is meshed with the driving gear (323).

6. A collection tube according to any one of claims 1 to 5, wherein: the tube (2) is a transparent tube.

7. A collection tube according to any one of claims 1 to 5, wherein: the bottom of the pipe body (2) is provided with a bottom opening, a liquid collecting hopper (23) for closing the bottom opening is arranged on the bottom opening, and the bottom surface of the liquid collecting hopper (23) is positioned in the inner cavity of the pipe body; the pipe body (2) and the liquid collecting hopper (23) are of an integral structure formed by injection molding.

8. The collection tube of claim 7, wherein: the specific structure of the pipe body manufacturing mold for injection molding the pipe body (2) and the liquid collecting hopper (23) together comprises a first upper mold body (41) and a first lower mold body (42) which can be separated from each other, wherein an injection molding opening (411) is arranged at the top of the first upper mold body (41), a shaping concave part matched with the shape of the pipe body is arranged on the bottom surface of the first upper mold body (41), the injection molding opening (411) is communicated with the shaping concave part, a shaping convex part (421) matched with the shape of the inner cavity of the pipe body is convexly arranged at the position, corresponding to the shaping concave part, on the top surface of the first lower mold body (42), when the first upper mold body (41) is matched with the first lower mold body (42), the shaping convex part (421) is positioned in the shaping concave part, a shaping cavity (412) matched with the shape of the pipe body (2) is arranged between the inner wall of the shaping concave part and the outer wall of the shaping convex part (421), and a flow distributing cavity (43), the flow dividing cavity (43) is communicated with the injection molding opening (411), flow holes (44) are distributed on the bottom surface of the flow dividing cavity (43) at intervals, and each flow hole (44) is communicated with one corresponding shaping cavity (412); the first upper die body (41) comprises a first upper die plate (401), a second upper die plate (402) and a third upper die plate (403) which are sequentially arranged in an up-down overlapping mode, the injection molding port (411) is located on the first upper die plate (401), an upper die plate groove is formed in the top of the third upper die plate (403), a flow distribution plate (45) is arranged in the upper die plate groove, a flow distribution groove is formed in the top surface of the flow distribution plate (45), the flow distribution cavity (43) is a cavity structure formed by covering the second upper die plate (402) on the flow distribution groove, the flow outlet (44) is located on the bottom surface of the flow distribution groove, and plate body through holes for communicating the flow distribution groove with the injection molding port (411) are formed in the second upper die plate (402); positioning convex parts (404) are distributed on the bottom surface of the third upper template (403), positioning concave parts (405) are distributed on the top surface of the first lower die body (42), and when the bottom surface of the first upper die body (41) is attached to the top surface of the first lower die body (42), the positioning convex parts (404) are inserted into the positioning concave parts (405); the first lower die body (42) comprises a first lower die plate, a second lower die plate, a third lower die plate and a fourth lower die plate which are sequentially arranged in an up-down overlapping mode, the bottom of the shaping convex portion (421) is connected to the second lower die plate, the top of the shaping convex portion (421) penetrates through the first lower die plate and extends out of the top surface of the first lower die plate, the bottom surface of the third lower die plate is connected to a supporting column of the fourth lower die plate, and the supporting column is sleeved with a buffer spring (422).

9. A collection tube according to any one of claims 1 to 5, wherein: the root of the adjacent connecting thread (13) is connected with a plane (131), the diameter of the cross section circle of the horizontal cross section where the root of the adjacent connecting thread (13) is located is smaller than that of the cross section circle of the horizontal cross section where the top of the adjacent connecting thread (13) is located, when the cover body (1) is screwed on the opening of the pipe body in a sealing mode, the top end of the adjacent connecting thread (13) deforms and abuts against the plane (131).

10. A collection tube according to any one of claims 1 to 5, wherein: an inner wall gap (16) which can be sleeved on the cover body injection mold to fix the cover body (1) is arranged on the inner wall of the cover body (1).

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