CN217736632U - Double-rubber-ring sleeve - Google Patents

Double-rubber-ring sleeve Download PDF

Info

Publication number
CN217736632U
CN217736632U CN202222093626.4U CN202222093626U CN217736632U CN 217736632 U CN217736632 U CN 217736632U CN 202222093626 U CN202222093626 U CN 202222093626U CN 217736632 U CN217736632 U CN 217736632U
Authority
CN
China
Prior art keywords
sleeve
ring
rubber
peripheral surface
rubber ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202222093626.4U
Other languages
Chinese (zh)
Inventor
戴天文
何英
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Guotiancheng Technology Co ltd
Original Assignee
Anhui Guotiancheng Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anhui Guotiancheng Technology Co ltd filed Critical Anhui Guotiancheng Technology Co ltd
Priority to CN202222093626.4U priority Critical patent/CN217736632U/en
Application granted granted Critical
Publication of CN217736632U publication Critical patent/CN217736632U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Joints Allowing Movement (AREA)

Abstract

The utility model relates to a bellows joint field specifically is a two rubber ring cover section of thick bamboo. The rubber ring comprises a sleeve, a rubber ring, a positioning piece and a reinforcing ring; two groups of buckle limiting structures are symmetrically arranged on the sleeve, a plurality of groups of observation hole assemblies are arranged on the sleeve, and each observation hole assembly comprises a plurality of observation holes which are distributed in an array manner along the axial direction and the circumferential direction of the sleeve; the rubber rings are coaxially arranged on the inner wall of the sleeve, and the two rubber rings are axially and symmetrically arranged relative to the sleeve; the positioning piece is arranged in the middle of the inner wall of the sleeve; the stiffening ring is coaxial to be set up on the sleeve outer peripheral face, and the stiffening ring sets up two along axial symmetry about the sleeve, and two stiffening rings correspond and are located two rubber ring outsides. The utility model discloses thereby can prevent effectively that the sleeve from taking place deformation and guarantee sealing performance.

Description

Double-rubber-ring sleeve
Technical Field
The utility model relates to a bellows joint field especially relates to a two rubber ring cover section of thick bamboo.
Background
The drainage pipe comprises a corrugated pipe and other types of pipelines, mainly takes the drainage tasks of rainwater, sewage, farmland irrigation and drainage and the like, and is particularly used for longitudinal and transverse drainage and water permeation of the highway; the back of various retaining walls and side ditches of the highway are vertically and horizontally drained; draining water from underground tunnels and tunnels; water supply and drainage of municipal works, sewage plants, water purification plants, garbage dumps and the like; drainage of golf courses, parks, sports grounds, and the like; slope water and soil conservation is developed in hilly land; underground drainage of land preparation works, etc. The length of a single corrugated pipe is fixed, and when the length of a total pipeline to be used exceeds the length of the single corrugated pipe, a plurality of corrugated pipes need to be connected by using a connecting structure so as to obtain a pipeline reaching the total length.
Generally, a sleeve connection structure is used for connecting corrugated pipes, two corrugated pipes are inserted into the inner sides of two ends of the sleeve connection structure, and the two corrugated pipes are connected in a sealing manner through rubber rings on the inner sides. However, at the rubber ring, the bellows applies an outward force to the rubber ring, so that the sleeve is extruded by the rubber ring at the position, and is easily deformed outward, and a gap may be formed between the rubber ring and the bellows and between the rubber ring and the sleeve, and the sealing property cannot be ensured.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the purpose is to the problem that exists among the background art, thereby provides one kind and can prevent effectively that the sleeve from taking place deformation and guaranteeing sealing performance's two rubber ring sleeves.
The technical scheme of the utility model, a two rubber ring cover section of thick bamboo, including sleeve, rubber ring, setting element and beaded finish.
Two groups of buckle limiting structures are symmetrically arranged on the sleeve, a plurality of groups of observation hole assemblies are arranged on the sleeve, and each observation hole assembly comprises a plurality of observation holes which are distributed in an array manner along the axial direction and the circumferential direction of the sleeve;
the rubber rings are coaxially arranged on the inner wall of the sleeve, and the two rubber rings are axially and symmetrically arranged relative to the sleeve;
the positioning piece is arranged in the middle of the inner wall of the sleeve;
the stiffening ring is coaxial to be set up on the sleeve outer peripheral face, and the stiffening ring sets up two along axial symmetry about the sleeve, and two stiffening rings correspond and are located two rubber ring outsides.
Preferably, the width of the reinforcing ring in the axial direction is larger than the width of the rubber ring in the axial direction.
Preferably, the positioning piece is a positioning ring or a positioning block, and the positioning blocks are uniformly arranged around the sleeve.
Preferably, the outer peripheral surface of the sleeve is coaxially provided with a plurality of annular reinforcing ribs a, the plurality of reinforcing ribs a are arranged side by side along the axial direction of the sleeve, strip-shaped reinforcing ribs b are connected between the two reinforcing rings, between the reinforcing rings and the reinforcing ribs a and between any two adjacent reinforcing ribs a, and the plurality of reinforcing ribs b are uniformly arranged around the sleeve.
Preferably, the sleeve is provided with an opening, and the buckle limiting structure is a straight plate part or a bent plate part;
the straight plate part is integrally connected with one end of the opening close to the end part of the sleeve, and the straight plate part gradually inclines towards the inner side of the sleeve along the direction from the connecting end to the opposite other end;
the bent plate part is integrally connected to one end of the opening close to the end part of the sleeve, and the bent plate part is gradually bent towards the inner side of the sleeve along the direction from the connecting end to the opposite other end.
Preferably, the two ends of the sleeve are provided with an outer expansion cylinder part with the increased diameter, and the opening and the buckle limiting structure are both positioned on the outer expansion cylinder part.
Preferably, the buckle limiting structure is a plurality of inner folded plate parts which are uniformly distributed in an annular shape or a plurality of outer folded plate parts which are uniformly distributed in an annular shape, a gap is formed between two adjacent inner folded plate parts or between two adjacent outer folded plate parts, and the gap extends to the sleeve;
the inner folded plate part is positioned at the end part of the sleeve and gradually inclines towards the inner side of the sleeve in the axial direction along the direction far away from the end part of the sleeve;
the outer folded plate portion is located at the end portion of the sleeve, and the outer folded plate portion gradually inclines to the outer side of the sleeve in the axial direction along the direction away from the end portion of the sleeve.
Preferably, the two ends of the sleeve are provided with an outer expanded cylinder part with the diameter increased, and the notch and the buckle limiting structure are both positioned on the outer expanded cylinder part.
Preferably, the sleeve is of any one of the following configurations a, B, C and D:
A. the outer peripheral surface of the sleeve is circular, and the inner peripheral surface of the sleeve is circular;
B. the outer peripheral surface of the sleeve is a regular polygon, and the inner peripheral surface of the sleeve is a circle;
C. the outer peripheral surface of the sleeve is circular, and the inner peripheral surface of the sleeve is a regular polygon;
D. the outer peripheral surface of the sleeve is a regular polygon, and the inner peripheral surface of the sleeve is a regular polygon;
when the inner peripheral surface of the sleeve is in a regular polygon shape, the rubber ring is in a regular polygon structure; when the outer peripheral surface of the sleeve is in a regular polygon shape, the reinforcing ring is in a regular polygon structure.
Compared with the prior art, the utility model discloses following profitable technological effect has:
the utility model discloses thereby can prevent effectively that the sleeve from taking place deformation and guarantee sealing performance. The corrugated pipe is inserted from the end part of the sleeve when the corrugated pipe is connected, the wave crest part at the outermost end of the corrugated pipe abuts against the positioning part and is positioned by the positioning part, and the rubber ring is clamped at the wave trough part on the corrugated pipe to seal the corrugated pipe. The buckle limit structure can be clamped between two adjacent wave peak parts on the corrugated pipe, and the corrugated pipe is limited. The strengthening ring corresponds and is located the rubber ring outside, can effectively improve the enhancement to telescopic structural strength, prevents that this department of sleeve region from outwards being strutted by the rubber ring, has avoided deformation for be difficult for appearing the gap between the sleeve in rubber ring and the outside, and the rubber ring also is difficult for appearing the gap with inboard bellows, thereby has effectively guaranteed the sealing performance of rubber ring.
Drawings
Fig. 1 is a structural sectional view of a first embodiment of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1;
fig. 3 is a structural sectional view of a second embodiment of the present invention;
fig. 4 is a structural sectional view of a third embodiment of the present invention;
fig. 5 is a cross-sectional view of a fourth embodiment of the present invention;
fig. 6 is a structural sectional view of a fifth embodiment of the present invention;
fig. 7 is a structural sectional view of a sixth embodiment of the present invention;
fig. 8 is a cross-sectional view of a seventh embodiment of the present invention;
fig. 9 is a structural sectional view of an eighth embodiment of the present invention.
Reference numerals are as follows: 1. a sleeve; 100. an outwardly-expanded cylindrical portion; 101. an observation hole; 102. an opening; 103. a notch; 11. a straight plate portion; 12. a bent plate portion; 13. an inner flap portion; 14. an outer flap portion; 2. a rubber ring; 3. a positioning member; 4. a reinforcement ring; 5. a bellows.
Detailed Description
Example one
As shown in fig. 1 and fig. 2, the double-rubber-ring sleeve provided in this embodiment includes a sleeve 1, a rubber ring 2, a positioning member 3, and a reinforcing ring 4.
Two groups of buckle limiting structures are symmetrically arranged on the sleeve 1, a plurality of groups of observation hole assemblies are arranged on the sleeve 1, each observation hole assembly comprises a plurality of observation holes 101 which are distributed along the axial direction and the circumferential direction of the sleeve 1 in an array manner, the plurality of groups of observation hole assemblies are distributed on the outer sides of the two rubber rings 2, and the observation holes 101 are aligned to the wave trough parts on the corrugated pipe 5, so that whether water leakage exists or not can be conveniently observed; an opening 102 is formed in the sleeve 1, and the buckle limiting structure is a straight plate part 11; straight board 11 is connected in the one end that opening 102 is close to sleeve 1 tip to an organic whole, and straight board 11 inclines to sleeve 1 inboard gradually to relative other end direction along this link, and when installation bellows 5, bellows 5 will be with straight board 11 back-lifting, and when bellows 5 inserted to setting element 3 department, straight board 11 can rebound and block between two adjacent crest portions on bellows 5.
Rubber ring 2 coaxial setting sets up at sleeve 1 inner wall, and rubber ring 2 sets up two along axial symmetry about sleeve 1, can seal two bellows 5 of this muffjoint.
Setting element 3 sets up at 1 inner wall middle part of sleeve, and setting element 3 is holding ring or locating piece, and the locating piece evenly sets up a plurality ofly around sleeve 1, can realize inserting telescopic 1's extreme position to bellows 5 through holding ring or locating piece and fix a position, guarantees buckle limit structure and can just in time block on bellows 5 between two adjacent ripples peak portions to carry on spacingly to bellows 5.
The reinforcing rings 4 are coaxially arranged on the outer peripheral surface of the sleeve 1, the two reinforcing rings 4 are axially symmetrically arranged relative to the sleeve 1, and the two reinforcing rings 4 are correspondingly positioned on the outer sides of the two rubber rings 2. The width of the reinforcing ring 4 along the axial direction is larger than that of the rubber ring 2 along the axial direction, so that the outer supporting area of the rubber ring 2 for the sleeve 1 can be fully covered.
The coaxial annular strengthening rib a that is provided with on the 1 outer peripheral face of sleeve, strengthening rib a sets up a plurality ofly side by side along sleeve 1 axial, between two beaded finish 4, all be connected with banding strengthening rib b between beaded finish 4 and the strengthening rib a and between arbitrary two adjacent strengthening rib a, strengthening rib b evenly sets up many around sleeve 1 to can form netted strengthening rib, further improve sleeve 1's structural strength and anti deformability.
This embodiment can effectively prevent that sleeve 1 from taking place deformation thereby to guarantee sealing performance. When the corrugated pipe 5 is connected, the corrugated pipe 5 is inserted from the end of the sleeve 1, the wave crest part at the outermost end of the corrugated pipe 5 abuts against the positioning part 3, the positioning part 3 is used for positioning, and the rubber ring 2 is clamped at the wave crest part on the corrugated pipe 5 to seal the corrugated pipe 5. The buckle limiting structure can be clamped between two adjacent wave peak parts on the corrugated pipe 5, and the corrugated pipe 5 is limited. The reinforcing ring 4 is correspondingly located on the outer side of the rubber ring 2, the structural strength of the sleeve 1 can be effectively enhanced, the region of the sleeve 1 is prevented from being outwards propped open by the rubber ring 2, deformation is avoided, gaps are not prone to occurring between the rubber ring 2 and the sleeve 1 on the outer side, the rubber ring 2 and the corrugated pipe 5 on the inner side are not prone to occurring, and therefore the sealing performance of the rubber ring 2 is effectively guaranteed.
Further, the sleeve may be of various forms of construction, such as:
(1) The outer peripheral surface of the sleeve is circular, and the inner peripheral surface of the sleeve is circular; the device is suitable for connecting a rotary corrugated pipe;
(2) The outer peripheral surface of the sleeve is a regular polygon, and the inner peripheral surface of the sleeve is a circle; the reinforcing ring is designed into a corresponding regular polygon structure; the corrugated pipe sleeve is suitable for being connected with a rotary corrugated pipe, and the peripheral surface of a regular polygon can facilitate the stable arrangement of the sleeve;
(3) The outer peripheral surface of the sleeve is circular, and the inner peripheral surface of the sleeve is a regular polygon; the rubber ring is designed into a corresponding regular polygon structure; the corrugated pipe connecting structure is suitable for connecting a corrugated pipe with polygonal outer peripheral corrugations, and the firmness of connection with the corrugated pipe can be improved by the inner peripheral surface of a regular polygon;
(4) The outer peripheral surface of the sleeve is a regular polygon, and the inner peripheral surface of the sleeve is a regular polygon; the rubber ring and the reinforcing ring are designed into corresponding regular polygon structures; the corrugated pipe connecting structure is suitable for connecting corrugated pipes with regular polygonal outer corrugations, the firmness of connection with the corrugated pipes can be improved by the inner peripheral surfaces of the regular polygons, and the sleeves can be conveniently and stably arranged by the outer peripheral surfaces of the regular polygons.
Example two
As shown in fig. 3, compared with the first embodiment, in the first embodiment, the sleeve 1 of the present embodiment is provided with an opening 102, and the buckling limiting structure is a bent plate portion 12; the bent plate portion 12 is integrally connected to one end of the opening 102 near the end of the sleeve 1, and the bent plate portion 12 is gradually bent toward the inside of the sleeve 1 in a direction from the connected end to the opposite end. In the process of inserting the corrugated pipe 5 into the sleeve 1, the corrugated pipe 5 can push the bent plate part 12 open, and after the corrugated pipe 5 moves to a target position, the bent plate part 12 rebounds and is clamped between two adjacent corrugated peak parts on the corrugated pipe 5, so that the corrugated pipe 5 is limited in another structural form.
EXAMPLE III
As shown in fig. 4, in the first embodiment, compared with the first embodiment, the buckle limiting structure in the first embodiment is a plurality of inner folded plate portions 13 uniformly distributed in a ring shape, a gap 103 is formed between two adjacent inner folded plate portions 13, and the gap 103 extends to the sleeve 1; the inner flap 13 is located at the end of the sleeve 1, and the inner flap 13 is gradually inclined inward in the axial direction of the sleeve 1 in a direction away from the end of the sleeve 1. When the corrugated pipe 5 is inserted into the sleeve 1, the corrugated pipe 5 pushes the inner folded plate 13 inwards through the wave crest part, and after the corrugated pipe 5 is installed in place, the inner folded plate 13 is clamped between two adjacent wave crest parts on the corrugated pipe 5. The notches 103 ensure that the inner folded plate 13 can be elastically deformed smoothly.
Example four
As shown in fig. 5, in the first embodiment, compared with the first embodiment, the buckle limiting structure in the first embodiment is a plurality of outer folding plates 14 uniformly distributed in a ring shape, a gap 103 is formed between two adjacent outer folding plates 14, and the gap 103 extends to the sleeve 1; the outer flap portion 14 is located at an end portion of the sleeve 1, and the outer flap portion 14 is gradually inclined outward in the axial direction of the sleeve 1 in a direction away from the end portion of the sleeve 1. When the corrugated pipe 5 is connected, the outer folding plate part 14 is firstly opened outwards, the corrugated pipe 5 is inserted into the sleeve 1, and after the corrugated pipe 5 is installed in place, the outer folding plate part 14 is released, so that the outer folding plate part 14 is clamped between two adjacent corrugated peak parts on the corrugated pipe 5. The notches 103 ensure smooth elastic deformation of the outer flap 14.
EXAMPLE five
As shown in fig. 6, compared with the first embodiment, in the present embodiment, the sleeve 1 has the enlarged diameter outer expanding cylinder portion 100 at both ends, the opening 102 and the straight plate portion 11 are both located on the enlarged diameter outer expanding cylinder portion 100, the size of the enlarged diameter outer expanding cylinder portion 100 is enlarged, the corrugated pipe 5 can be inserted into the opening conveniently and smoothly, and the straight plate portion 11 can still be effectively clamped on the corrugated pipe 5 for limiting.
EXAMPLE six
As shown in fig. 7, in the present embodiment, compared to the second embodiment, both ends of the sleeve 1 have the outward-expanding tube portion 100 with increased diameter, the opening 102 and the bent plate portion 12 are both located on the outward-expanding tube portion 100, the outward-expanding tube portion 100 has increased size, so as to be conveniently and smoothly inserted into the corrugated tube 5, and the bent plate portion 12 can still be effectively clamped on the corrugated tube 5 for limiting.
EXAMPLE seven
As shown in fig. 8, in the present embodiment, compared to the third embodiment, both ends of the sleeve 1 have the outward-expanding tube portion 100 with an increased diameter, the notch 103 and the inner folded plate portion 13 are both located on the outward-expanding tube portion 100, the outward-expanding tube portion 100 has an increased size, so that the corrugated tube 5 can be inserted smoothly and conveniently, and the inner folded plate portion 13 can still be effectively clamped on the corrugated tube 5 to firmly limit the corrugated tube 5.
Example eight
As shown in fig. 9, in the present embodiment, compared to the fourth embodiment, both ends of the sleeve 1 have the outward-expanding tube portion 100 with the increased diameter, the notch 103 and the outer flap portion 14 are both located on the outward-expanding tube portion 100, the size of the outward-expanding tube portion 100 is increased, the bellows 5 can be inserted smoothly and conveniently, and the outer flap portion 14 can still be effectively clamped on the bellows 5 to firmly limit the bellows 5.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made without departing from the gist of the present invention within the scope of knowledge possessed by those skilled in the art.

Claims (9)

1. A dual-rubber snare comprising:
the sleeve (1) is symmetrically provided with two groups of buckle limiting structures, a plurality of groups of observation hole assemblies are arranged on the sleeve, and each observation hole assembly comprises a plurality of observation holes (101) which are distributed in an array manner along the axial direction and the circumferential direction of the sleeve (1);
the rubber rings (2) are coaxially arranged on the inner wall of the sleeve (1) and are symmetrically arranged in the axial direction relative to the sleeve (1);
the positioning piece (3) is arranged in the middle of the inner wall of the sleeve (1);
the reinforcing rings (4) are coaxially arranged on the outer peripheral surface of the sleeve (1), two reinforcing rings are symmetrically arranged relative to the sleeve (1) along the axial direction, and the two reinforcing rings (4) are correspondingly positioned on the outer sides of the two rubber rings (2).
2. A double rubber ring sleeve as claimed in claim 1, characterized in that the width of the reinforcing ring (4) in the axial direction is greater than the width of the rubber ring (2) in the axial direction.
3. A double rubber ring sleeve according to claim 1, wherein the positioning element (3) is a positioning ring or a positioning block, and a plurality of positioning blocks are uniformly arranged around the sleeve (1).
4. A double-rubber-ring sleeve according to claim 1, wherein a plurality of annular reinforcing ribs a are coaxially arranged on the outer circumferential surface of the sleeve (1), a plurality of reinforcing ribs a are arranged side by side along the axial direction of the sleeve (1), strip-shaped reinforcing ribs b are connected between two reinforcing rings (4), between the reinforcing rings (4) and the reinforcing ribs a and between any two adjacent reinforcing ribs a, and a plurality of reinforcing ribs b are uniformly arranged around the sleeve (1).
5. A double rubber ring sleeve as claimed in claim 1, wherein the sleeve (1) is provided with an opening (102), and the snap limiting structure is a straight plate part (11) or a bent plate part (12);
the straight plate part (11) is integrally connected with one end of the opening (102) close to the end part of the sleeve (1), and the straight plate part (11) gradually inclines towards the inner side of the sleeve (1) along the direction from the connecting end to the opposite other end;
the bent plate part (12) is integrally connected with one end of the opening (102) close to the end part of the sleeve (1), and the bent plate part (12) is gradually bent towards the inner side of the sleeve (1) along the direction from the connecting end to the opposite other end.
6. A double rubber ring sleeve as claimed in claim 5, wherein the sleeve (1) has enlarged diameter outer enlarged barrel portions (100) at both ends, and the opening (102) and the snap stop structure are located on the outer enlarged barrel portions (100).
7. The double-rubber-ring sleeve is characterized in that the buckle limiting structures are a plurality of inner folded plate parts (13) which are uniformly distributed in a ring shape or a plurality of outer folded plate parts (14) which are uniformly distributed in a ring shape, a gap (103) is formed between every two adjacent inner folded plate parts (13) or between every two adjacent outer folded plate parts (14), and the gap (103) extends to the sleeve (1);
the inner folded plate part (13) is positioned at the end part of the sleeve (1), and the inner folded plate part (13) gradually inclines towards the inner side of the sleeve (1) in the axial direction along the direction far away from the end part of the sleeve (1);
the outer folding plate part (14) is positioned at the end part of the sleeve (1), and the outer folding plate part (14) gradually inclines to the outer side of the sleeve (1) in the axial direction along the direction far away from the end part of the sleeve (1).
8. A double rubber ring sleeve as claimed in claim 7, wherein the sleeve (1) has enlarged diameter outer enlarged barrel portions (100) at both ends, and the notch (103) and the snap stop structure are located on the outer enlarged barrel portions (100).
9. A double rubber snare drum according to claim 1, wherein the sleeve (1) is in the form of any one of the following a, B, C and D:
A. the outer peripheral surface of the sleeve (1) is circular, and the inner peripheral surface of the sleeve (1) is circular;
B. the outer peripheral surface of the sleeve (1) is a regular polygon, and the inner peripheral surface of the sleeve (1) is a circle;
C. the outer peripheral surface of the sleeve (1) is circular, and the inner peripheral surface of the sleeve (1) is a regular polygon;
D. the outer peripheral surface of the sleeve (1) is a regular polygon, and the inner peripheral surface of the sleeve (1) is a regular polygon;
when the inner circumferential surface of the sleeve (1) is in a regular polygon shape, the rubber ring (2) is in a regular polygon structure; when the outer peripheral surface of the sleeve (1) is a regular polygon, the reinforcing ring (4) is of a regular polygon structure.
CN202222093626.4U 2022-08-09 2022-08-09 Double-rubber-ring sleeve Active CN217736632U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222093626.4U CN217736632U (en) 2022-08-09 2022-08-09 Double-rubber-ring sleeve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222093626.4U CN217736632U (en) 2022-08-09 2022-08-09 Double-rubber-ring sleeve

Publications (1)

Publication Number Publication Date
CN217736632U true CN217736632U (en) 2022-11-04

Family

ID=83813858

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222093626.4U Active CN217736632U (en) 2022-08-09 2022-08-09 Double-rubber-ring sleeve

Country Status (1)

Country Link
CN (1) CN217736632U (en)

Similar Documents

Publication Publication Date Title
CN216520090U (en) Visual socket joint
KR101006355B1 (en) Bellows type flexible valve
US7306264B2 (en) Pipe having a water-tight in-line bell
CN217736632U (en) Double-rubber-ring sleeve
CN217736579U (en) Single rubber sleeve type straight wall buckle joint
CN217736633U (en) Single rubber ring sleeve
CN217653438U (en) Double-rubber-ring type straight-wall buckle joint
CN209163834U (en) A kind of tunnel shock resistant damping steel pipe sheet and steel pipe joint
CN217482213U (en) Variable-diameter double-rubber-ring water-closing sleeve connecting structure
CN217401992U (en) Reinforced double-rubber-ring water-closing sleeve connecting structure
CN217401991U (en) Reinforced single-rubber-sleeve water-blocking sleeve connecting structure
CN217653441U (en) Movable straight wall buckle joint
CN217482214U (en) Reducing type sealing rubber mat water-closing sleeve connecting structure
CN217356021U (en) Double-sealing limiting sleeve connecting structure for straight corrugated pipe
CN115031070A (en) Variable-diameter double-rubber-ring water-closing sleeve connecting structure
CN216843622U (en) Flaring type corrugated pipe and double-sealing limiting structure
CN219367046U (en) Double-rubber-ring sealing sleeve connecting structure
CN217653414U (en) High-strength matrix double-wall corrugated pipe and sleeve connecting structure
CN219013612U (en) Socket joint formula bellows and two rubber rings seal connection structure
CN218780910U (en) Sleeve subregion connection structure
CN220186156U (en) Buckle connection type sleeve
CN218952361U (en) Civil air defense engineering hydrophobic structure
CN111255965A (en) Internal pressure reinforced pipe
CN115234723A (en) Reinforced single-rubber-sleeve water-blocking sleeve connecting structure
CN218468444U (en) Reinforced polypropylene double-wall corrugated pipe for buried drainage and pollution discharge

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant