CN115824719A

CN115824719A - Harmful substance filtering and sampling device for water quality detection

Info

Publication number: CN115824719A
Application number: CN202310109681.4A
Authority: CN
Inventors: 穆岩; 付贺鹏; 张倩; 逯明玉; 赵志强
Original assignee: Hebei Huiyou Environmental Protection Technology Co ltd
Current assignee: Hebei Huiyou Environmental Protection Technology Co ltd
Priority date: 2023-02-14
Filing date: 2023-02-14
Publication date: 2023-03-21
Anticipated expiration: 2043-02-14
Also published as: CN115824719B

Abstract

The invention discloses a harmful substance filtering and sampling device for water quality detection, which relates to the technical field of water quality detection and comprises an extraction shell, an extraction block and a transmission pipe, wherein an inner convex thread is fixedly arranged on the inner wall of the extraction shell, the top of a sampling tank is fixedly connected with a pulling block, the top of the pulling block is fixedly connected with a pull ring, a through hole is formed in the extraction block, the bottom of the through hole is fixedly connected with an elastic pipe, the bottom of the extraction block is fixedly connected with a pulling spring, and the bottom of the extraction shell is fixedly connected with a pressing ring. This a harmful substance filtering and sampling device for water quality testing holds the pulling through the staff, reaches the effect with the extraction of target quality of water, can send extraction part A to collection part B with target quality of water, makes things convenient for the staff to deposit the processing with sample back quality of water.

Description

Harmful substance filtering and sampling device for water quality detection

Technical Field

The invention relates to the technical field of water quality detection, in particular to a harmful substance filtering and sampling device for water quality detection.

Background

Water is a source of life, people can not leave water in life and production activities, and the quality of drinking water is closely related to the health of people. With the development of social economy, scientific progress and improvement of the living standard of people, the requirements of people on the water quality of drinking water are continuously improved, and the water quality standard of the drinking water is correspondingly continuously developed and improved. Therefore, the purpose of water quality detection is that the influence of drinking water on human health is mainly considered, and the water quality standard of the drinking water comprises physical indexes, chemical indexes and microorganism indexes.

When current hand-held type water quality testing sampling device takes a sample, can not in time seal to the quality of water after it takes a sample, lead to water quality testing data deviation to hand-held type sampling device is at the quality of water in-process of taking a sample, and the regional undersize of sample can not reach the homogeneity sample, leads to the quality of water that the device was taken a sample can not represent regional quality of water.

Disclosure of Invention

In order to achieve the purpose, the invention is realized by the following technical scheme: a noxious substance filtering and sampling apparatus for water quality detection, comprising:

the drawing part A comprises a drawing shell, a drawing block and a transmission pipe, wherein an inner convex thread is fixedly installed on the inner wall of the drawing shell, the top of the drawing block is fixedly connected with a pulling block, the top of the pulling block is fixedly connected with a pulling ring, a through hole is formed in the drawing block, the bottom of the through hole is fixedly connected with an elastic pipe, the bottom of the drawing block is fixedly connected with a pulling spring, and the bottom of the drawing shell is fixedly connected with a pressing ring;

collecting part B, collecting part B is including the sample jar, the surface department fixed mounting of sample jar has the glass cover, the top fixedly connected with vent plate of sample jar, the ring is pasted to the top fixedly connected with of vent plate avris, the sunken department cover in the middle of the vent plate is equipped with first magnetic path, the interior card awl cover of top fixedly connected with of sample jar inner chamber, the bottom fixedly connected with laminating device of interior card awl cover. The pulling is held by the staff, the effect of extracting the target water quality is achieved, the extraction part A can be conveyed to the collection part B with the target water quality, and the water quality after sampling is conveniently stored and treated by the staff. Simultaneously, at the in-process of staff pulling, the adaptation of evagination screw thread and interior convex screw thread for the bottom of sample part A reaches the effect of rotatory sample when extracting quality of water, the homogeneity of quality of water when improving the sample, and can keep apart harmful fixed impurity at rotatory sample, prevent that harmful substance from getting into inside the sampling device.

Preferably, the extraction part A and the collection part B are hermetically communicated through a transmission pipe, one end of the transmission pipe is fixedly installed inside the extraction block, an elastic pipe is fixedly connected to the middle of the bottom of the extraction block and communicated with the transmission pipe, and the other end, far away from the elastic pipe, of the transmission pipe penetrates through the sampling tank and extends to the inside.

Preferably, the bottom fixedly connected with of extraction piece drags the spring, the bottom fixedly connected with toper block that drags the spring, the internal surface of extraction shell is equipped with interior convex screw thread, the surface cover of interior convex screw thread is equipped with the clamp plate, the surface fixed connection of clamp plate has outer convex screw thread, and outer convex screw thread and interior convex screw thread looks threaded connection, the bottom fixedly connected with of clamp plate opens the housing outward, the surface and the clamping ring looks extrusion adaptation of the housing of opening outward.

Preferably, the interior fixed surface of clamp plate is connected with the sample cover shell, the top fixedly connected with second stopper of sample cover shell internal surface, the bottom fixedly connected with slip shell of toper block, establish the awl cover in the inner wall fixedly connected with of slip shell, establish the top fixedly connected with water conservancy diversion plectrum of awl cover in, establish the concave button of awl cover centrum inner wall fixedly connected with current-limiting of department in, establish the interior bottom fixedly connected with who bores the cover and press the spring, press the spacing cutting ferrule of bottom fixedly connected with of spring in, the surface department seal installation of sample cover shell has guiding device.

Preferably, the interior fixed surface of sample cover shell is connected with first stopper, the effect of first stopper is that the restriction spacing card cover is at the vertical displacement of sample cover shell, the effect of second stopper is that the restriction slip shell is at the vertical displacement of sample cover shell.

Preferably, the guiding device comprises a guiding folding rod, the outer surface of the guiding folding rod is fixedly connected to the shell of the sampling casing, the top of the guiding folding rod is fixedly connected with a flow guide block, and an inner flow guide hole is formed in the guiding folding rod.

Preferably, the outer surface of the bottom of the guide folding rod is fixedly connected with an elastic shifting plate, the bottom of the elastic shifting plate is connected with the inner wall of the inner flow guide hole through a supporting plate, and the surface of the supporting plate is fixedly connected with a clamping guide plate. At rotary sampling's in-process, guiding device can carry out the quality of water extraction in different regions, prevents to have impurity to plug up the sample connection in aqueous, and sampling part A can not effectively take a sample, can guarantee simultaneously that the sample is even sample, prevents the inhomogeneity of partial region sample.

Preferably, the inner surface of the attaching device is sleeved with a sliding convex plate, a second magnetic block is fixedly mounted in the middle of the bottom surface of the sliding convex plate, and the first magnetic block and the second magnetic block are adsorbed. After the sampling is finished, the worker can press the first magnetic block inwards, so that the distance between the first magnetic block and the second magnetic block is reduced, the second magnetic block can drive the sliding convex plate to move upwards, and the effect of sealing and sampling water quality is achieved.

Preferably, the inside of slip flange has seted up the water conservancy diversion thru hole, the bottom fixedly connected with spacing fixture block of slip flange, the inner wall department fixedly connected with inner wall hanging piece of sample jar, the effect of inner wall hanging piece is the vertical displacement of restriction slip flange.

Preferably, the laminating device establishes the ring including concave, the concave top of establishing the ring is the design of recess form, and the concave top fixed connection who establishes the ring in the bottom of inside callipers awl cover, the concave inboard department of establishing sets up annular groove, the equal fixed connection elasticity adhesive tape of both sides department of annular groove, and the sunken and slip flange looks adaptation that elasticity adhesive tape and annular groove formed. The sunken of elasticity adhesive tape and annular groove formation can carry out the friction with the slip flange and seal, reaches better sealed effect, prevents that the inside sample quality of water of collecting part B from rocking and overflowing.

The invention provides a harmful substance filtering and sampling device for water quality detection. The method has the following beneficial effects:

1. this a harmful substance filtering and sampling device for water quality testing holds the pulling through the staff, reaches the effect with the extraction of target quality of water to can send extraction part A to collection part B with target quality of water, make things convenient for the staff to deposit the processing with quality of water after the sample.

2. This a harmful substance filters sampling device for water quality testing through the in-process at the staff pulling, the adaptation of evagination screw thread and interior convex screw thread for sample part A's bottom reaches the effect of rotatory sample when extracting quality of water, improves the homogeneity of quality of water when taking a sample, and can keep apart harmful fixed impurity at rotatory sample, prevents that harmful substance from getting into inside the sampling device.

3. This a harmful filter sampling device for water quality testing through the in-process at rotatory sample, and guiding device can carry out the water quality extraction in different regions, prevents to have impurity to plug up the sample connection in aqueous, and sampling part A can not effectively take a sample, can guarantee simultaneously that the sample is even sample, prevents the inhomogeneity of partial region sample.

4. This a harmful substance filtration sampling device for water quality testing through after the sample, the staff can inwards press first magnetic path for the interval of first magnetic path and second magnetic path reduces, and the second magnetic path can drive the upwards displacement of slip flange, reaches the effect of sealed sample quality of water.

5. This a harmful filtration sampling device for water quality testing, the sunken of forming through elasticity adhesive tape and annular groove can carry out the friction with the slip flange and seal, reaches better sealed effect, prevents that the inside sample quality of water of collecting part B from rocking and overflowing.

Drawings

FIG. 1 is a schematic view of the whole structure A and part B of the present invention;

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

FIG. 3 is a schematic view of an extraction section A of the present invention;

FIG. 4 is a schematic view of the anatomy of an extraction section A of the present invention;

FIG. 5 is a detailed cross-sectional view of the extracting portion A of the present invention;

FIG. 6 is a schematic view of a structural guide apparatus of the present invention;

FIG. 7 is a schematic view of a structural collection section B of the present invention;

FIG. 8 is a schematic cross-sectional view of a collecting section B of the structure of the present invention;

FIG. 9 is a schematic cross-sectional view of a structure bonding apparatus according to the present invention.

In the figure: 1. extracting the shell; 2. a pull ring; 3. a conveying pipe; 4. a glass cover; 5. a sampling tank; 6. pulling the block; 7. pressing a ring; 9. an elastic tube; 10. pulling the spring; 11. a conical block; 12. a convex thread; 13. an outer open housing; 14. pressing a plate; 15. an inwardly projecting thread; 16. a sliding housing; 17. a current limiting concave button; 19. a first stopper; 20. a limiting clamping sleeve; 21. an inner pressure spring; 22. a guide device; 221. a guide folding bar; 222. a supporting plate; 223. clamping a guide plate; 224. an elastic shifting plate; 225. an inner diversion hole; 226. a flow guide block; 23. a conical cover is arranged in the inner part; 24. a diversion shifting piece; 25. a vent panel; 26. a first magnetic block; 27. sticking a ring; 28. an inner wall hanging block; 29. an inner clamping cone cover; 30. a second magnetic block; 31. a sliding convex plate; 32. a flow guide through hole; 33. a limiting clamping block; 34. a bonding device; 341. a ring is concavely arranged; 342. an elastic rubber strip; 343. an annular groove; 35. a second limiting block; 36. extracting blocks; 37. a sampling casing.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

The first embodiment, as shown in fig. 1-6, provides a technical solution: a harmful substance filtering and sampling device for water quality detection comprises an extraction part A, wherein the extraction part A comprises an extraction shell 1, an extraction block 36 and a transmission pipe 3, an inner convex thread 15 is fixedly arranged on the inner wall of the extraction shell 1, the top of the extraction block 36 is fixedly connected with an extraction block 6, the top of the extraction block 6 is fixedly connected with a pull ring 2, a through hole is formed in the extraction block 36, the bottom of the through hole is fixedly connected with an elastic pipe 9, the bottom of the extraction block 36 is fixedly connected with an extraction spring 10, and the bottom of the extraction shell 1 is fixedly connected with a compression ring 7;

the extraction part A and the collection part B are communicated in a sealing mode through the transmission pipe 3, one end of the transmission pipe 3 is fixedly installed inside the extraction block 36, the elastic pipe 9 is fixedly connected to the middle of the bottom of the extraction block 36, the elastic pipe 9 is communicated with the transmission pipe 3, and the other end, far away from the elastic pipe 9, of the transmission pipe 3 penetrates through the sampling tank 5 and extends to the inside.

The bottom fixedly connected with of extraction piece 36 pulls spring 10, and the bottom fixedly connected with toper block 11 that pulls spring 10, the internal surface of extraction shell 1 is equipped with interior convex screw thread 15, and the surface cover of interior convex screw thread 15 is equipped with clamp plate 14, and the external surface fixed connection of clamp plate 14 has outer convex screw thread 12, and outer convex screw thread 12 and interior convex screw thread 15 looks threaded connection, and clamp plate 14's bottom fixedly connected with opens housing 13 outward, and the surface and the clamping ring 7 looks extrusion adaptation of opening housing 13 outward.

The internal surface fixedly connected with of clamp plate 14 samples cover shell 37, the top fixedly connected with second stopper 35 of the 37 internal surfaces of sample cover shell, the bottom fixedly connected with slip shell 16 of toper block 11, establish awl cover 23 in the inner wall fixedly connected with of slip shell 16, establish the top fixedly connected with water conservancy diversion plectrum 24 of awl cover 23 in, establish the concave button 17 of awl cover 23 centrum inner wall fixedly connected with current-limiting of department, establish the interior bottom fixedly connected with of awl cover 23 and press spring 21 in, the spacing cutting ferrule 20 of bottom fixedly connected with of interior pressure spring 21, the surface department seal installation of sample cover shell 37 has guiding device 22.

The inner surface of the sampling casing 37 is fixedly connected with a first limit block 19, the first limit block 19 is used for limiting the vertical displacement of the limit clamping sleeve 20 on the sampling casing 37, and the second limit block 35 is used for limiting the vertical displacement of the sliding shell 16 on the sampling casing 37.

The guiding device 22 comprises a guiding folding rod 221, the outer surface of the guiding folding rod 221 is fixedly connected to the shell of the sampling casing 37, the top of the guiding folding rod 221 is fixedly connected with a flow guide block 226, and an inner flow guide hole 225 is formed in the guiding folding rod 221.

The outer surface of the bottom of the guiding folding rod 221 is fixedly connected with an elastic shifting plate 224, the bottom of the elastic shifting plate 224 is connected with the inner wall of an inner diversion hole 225 through a supporting plate 222, and the surface of the supporting plate 222 is fixedly connected with a clamping guide plate 223. At the in-process of rotation sampling, guiding device 22 can carry out the quality of water extraction in different regions, prevents that there is impurity to plug up the sample connection in aqueous, and sample section A can not effectively take a sample, can guarantee simultaneously that the sample is even sample, prevents the inhomogenity of partial region sample.

During the use, hold extraction shell 1 pulling pull ring 2 through the staff, the upwards displacement of extraction piece 36 drives and pulls spring 10, pull spring 10 with

toper block

11 and 16 upwards uplift of sliding housing, with the 37 negative pressure spaces that appear of sample cover shell, therefore spacing cutting ferrule 20 and guiding device 22 inhale sample water quality in the sample part A, and when the staff stopped the pulling, interior pressure spring 21 retracted the quality of water in with sample part A jointly with pulling spring 10 and pushed transmission pipe 3 into, reach the sample effect, and water conservancy diversion plectrum 24 when the staff pulling, can keep apart sliding housing 16 and the interior inner space who establishes conical cover 23, reach the check valve effect.

In the second embodiment, as shown in fig. 7-9, the collecting part B includes a sampling tank 5, a glass cover 4 is fixedly mounted on the outer surface of the sampling tank 5, a vent hole plate 25 is fixedly connected to the top of the sampling tank 5, a sticking ring 27 is fixedly connected to the top of the side of the vent hole plate 25, a first magnetic block 26 is sleeved on a concave portion in the middle of the vent hole plate 25, an inner conical cover 29 is fixedly connected to the top of the inner cavity of the sampling tank 5, and a sticking device 34 is fixedly connected to the bottom of the inner conical cover 29. The extraction shell 1 is held by the staff to pull the pull ring 2, the effect of extracting the target water quality is achieved, the transmission pipe 3 can convey the extraction part A to the collection part B with the target water quality, and the staff can store and treat the sampled water quality conveniently. Simultaneously, at the in-process of staff's pulling, the adaptation of convex screw thread 12 and convex screw thread 15 for the bottom of sample part A reaches the effect of rotatory sample when extracting quality of water, the homogeneity of quality of water when improving the sample.

The inner surface of the attaching device 34 is sleeved with a sliding convex plate 31, the middle of the bottom surface of the sliding convex plate 31 is fixedly provided with a second magnetic block 30, and the first magnetic block 26 and the second magnetic block 30 are adsorbed. After the sampling is finished, the worker can press the first magnetic block 26 inwards, so that the distance between the first magnetic block 26 and the second magnetic block 30 is reduced, the second magnetic block can drive the sliding convex plate 31 to move upwards, and the effect of sealing the sampled water quality is achieved.

The water conservancy diversion thru hole 32 has been seted up to the inside of slip flange 31, and the spacing fixture block 33 of the bottom fixedly connected with of slip flange 31, the inner wall department fixedly connected with inner wall hanging piece 28 of sample jar 5, the vertical displacement of the effect of inner wall hanging piece 28 for the restriction slip flange 31.

Laminating device 34 establishes ring 341 including the recess, and the top of establishing ring 341 the recess is the design of flute profile, and the top fixed connection who establishes ring 341 the recess in the bottom of interior card cone cover 29, and annular groove 343 has been seted up to the concave ring 341 medial surface department of establishing, and the equal fixed connection of both sides department of annular groove 343 has elasticity adhesive tape 342, and the sunken and slip flange 31 looks adaptation that elasticity adhesive tape 342 and annular groove 343 formed. The depression formed by the elastic rubber strip 342 and the annular groove 343 can be in friction sealing with the sliding convex plate 31, so that a better sealing effect is achieved, and the phenomenon that the sampling water quality inside the collecting part B is shaken to overflow is prevented.

When the water quality sealing device is used, in the process of pulling by a worker, the outer convex threads 12 are matched with the inner convex threads 15, so that the effect of rotary sampling is achieved when the bottom of the sampling part A extracts water quality, the uniformity of the water quality during sampling is improved, after sampling is finished, the worker can press the first magnetic block 26 inwards, the distance between the first magnetic block 26 and the second magnetic block 30 is reduced, the second magnetic block can drive the sliding convex plate 31 to move upwards, and the effect of sealing the sampled water quality is achieved; the depression formed by the elastic rubber strip 342 and the annular groove 343 can be in friction sealing with the sliding convex plate 31, so that a better sealing effect is achieved, and the phenomenon that the sampling water quality inside the collecting part B is shaken to overflow is prevented.

It should be apparent that the described embodiments are only some of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by one of ordinary skill in the art and related arts based on the embodiments of the present invention without any creative effort, shall fall within the protection scope of the present invention. Structures, devices, and methods of operation not specifically described or illustrated herein are generally practiced in the art without specific recitation or limitation.

Claims

1. A harmful substance filtering and sampling device for water quality detection is characterized by comprising:

the extraction part A comprises an extraction shell (1), an extraction block (36) and a transmission pipe (3), wherein an inner convex thread (15) is fixedly mounted on the inner wall of the extraction shell (1), the top of the extraction block (36) is fixedly connected with a pull block (6), the top of the pull block (6) is fixedly connected with a pull ring (2), a through hole is formed in the extraction block (36), the bottom of the through hole is fixedly connected with an elastic pipe (9), the bottom of the extraction block (36) is fixedly connected with a pull spring (10), and the bottom of the extraction shell (1) is fixedly connected with a press ring (7);

collect part B, collect part B including sample jar (5), the surface department fixed mounting of sample jar (5) has glass cover (4), top fixedly connected with vent plate (25) of sample jar (5), the top fixedly connected with of vent plate (25) avris pastes ring (27), the sunken department cover in the middle of vent plate (25) is equipped with first magnetic path (26), inside callipers of the top fixedly connected with of sample jar (5) inner chamber covers (29), the bottom fixedly connected with laminating device (34) of inside callipers cover (29).

2. The harmful substance filtering and sampling device for water quality detection according to claim 1, wherein: the extraction part A and the collection part B are communicated in a sealing mode through a transmission pipe (3), one end of the transmission pipe (3) is fixedly installed inside an extraction block (36), an elastic pipe (9) is fixedly connected to the middle of the bottom of the extraction block (36), the elastic pipe (9) is communicated with the transmission pipe (3), and the other end, far away from the elastic pipe (9), of the transmission pipe (3) penetrates through the sampling tank (5) and extends into the interior.

3. The harmful substance filtering and sampling device for water quality detection according to claim 1, wherein: the bottom fixedly connected with of extraction piece (36) pulls spring (10), the bottom fixedly connected with toper block (11) of pulling spring (10), the internal surface of extraction shell (1) is equipped with interior convex screw thread (15), the surface cover of interior convex screw thread (15) is equipped with clamp plate (14), the outer fixed surface of clamp plate (14) is connected with evagination screw thread (12), and evagination screw thread (12) and interior convex screw thread (15) looks threaded connection, the bottom fixedly connected with of clamp plate (14) is opened housing (13) outward, the surface and clamping ring (7) looks extrusion adaptation of the housing (13) of opening outward.

4. A noxious substance filtering and sampling apparatus for water quality detection according to claim 3, wherein: the utility model discloses a taper cover's structure, including clamp plate (14), the internal surface fixedly connected with sample cover shell (37) of clamp plate (14), the top fixedly connected with second stopper (35) of sample cover shell (37) internal surface, the bottom fixedly connected with slip shell (16) of toper block (11), establish awl cover (23) in the inner wall fixedly connected with of slip shell (16), establish top fixedly connected with water conservancy diversion plectrum (24) of awl cover (23) in, establish awl cover (23) centrum inner wall fixedly connected with current-limiting concave button (17) in, establish the bottom fixedly connected with of awl cover (23) and press spring (21) in, press spacing cutting ferrule (20) of bottom fixedly connected with of spring (21) in, the sealed mounting of the surface department of sample cover shell (37) has guiding device (22).

5. The harmful substance filtering and sampling device for water quality detection according to claim 4, wherein: the interior fixed surface of sample cover shell (37) is connected with first stopper (19), the effect of first stopper (19) is that restriction spacing cutting ferrule (20) is at sample cover shell (37) vertical displacement, the effect of second stopper (35) is that restriction slip shell (16) is at sample cover shell (37) vertical displacement.

6. The harmful substance filtering and sampling device for water quality detection according to claim 4, wherein: the guiding device (22) comprises a guiding folding rod (221), the outer surface of the guiding folding rod (221) is fixedly connected to the shell of the sampling casing (37), the top of the guiding folding rod (221) is fixedly connected with a flow guide block (226), and an inner flow guide hole (225) is formed in the guiding folding rod (221).

7. The harmful substance filtering and sampling device for water quality detection according to claim 6, wherein: the outer surface of the bottom of the guide folding rod (221) is fixedly connected with an elastic shifting plate (224), the bottom of the elastic shifting plate (224) is connected with the inner wall of the inner diversion hole (225) through a supporting plate (222), and the surface of the supporting plate (222) is fixedly connected with a clamping guide plate (223).

8. The harmful substance filtering and sampling device for water quality detection according to claim 1, wherein: the inner surface of the attaching device (34) is sleeved with a sliding convex plate (31), a second magnetic block (30) is fixedly mounted in the middle of the bottom surface of the sliding convex plate (31), and the first magnetic block (26) and the second magnetic block (30) are adsorbed.

9. The harmful substance filtering and sampling device for water quality detection according to claim 8, wherein: the water conservancy diversion thru hole (32) has been seted up to the inside of slip flange (31), the bottom fixedly connected with spacing fixture block (33) of slip flange (31), the inner wall department fixedly connected with inner wall hanging piece (28) of sample jar (5), the vertical displacement of inner wall hanging piece (28) for the restriction slip flange (31).

10. The harmful substance filtering and sampling device for water quality inspection according to claim 9, wherein: laminating device (34) establishes ring (341) including the recess, the top of establishing ring (341) in the recess is the design of recess form, and the concave top fixed connection who establishes ring (341) is in the bottom of interior card awl cover (29), annular groove (343) have been seted up to the concave ring (341) medial surface department of establishing, the equal fixed connection of both sides department of annular groove (343) has elastic adhesive tape (342), and elastic adhesive tape (342) and the sunken and slip flange (31) looks adaptation that annular groove (343) formed.