CN220016491U

CN220016491U - Bellows connection structure

Info

Publication number: CN220016491U
Application number: CN202321477359.9U
Authority: CN
Inventors: 谢锋; 朱云龙
Original assignee: Zhejiang Lianfeng Environmental Technology Co ltd
Current assignee: Zhejiang Lianfeng Environmental Technology Co ltd
Priority date: 2023-06-10
Filing date: 2023-06-10
Publication date: 2023-11-14
Anticipated expiration: 2033-06-10

Abstract

The utility model relates to a corrugated pipe connecting structure, which relates to the field of pipe connecting methods, and comprises an inner pipe, an outer pipe and a clamping piece, wherein the outer pipe is a corrugated pipe body, and the inner diameter of the outer pipe is larger than the outer diameter of the inner pipe; a sliding groove is formed in the end part of the inner pipe and parallel to the axial direction of the inner pipe, the sliding groove is positioned on the outer side wall of the inner pipe, a slot with a larger slot width than the slot width of the sliding groove is formed in the bottom of the sliding groove on the inner pipe, and the clamping piece is inserted into the slot in a sliding way; a clamping groove is formed in the side wall of the inner tube at the bottom of the slot, an inner clamping protrusion is arranged on the clamping piece, and the inner clamping protrusion is clamped in the clamping groove; the card is close to the one end at inner tube middle part and is fixed with outer card protruding, and outer card protruding is the plate body of perk gradually towards the inner tube middle part. According to the utility model, the slot is formed in the outer wall of the inner tube, the clamping piece is inserted in the slot, and when the inner tube is used, only the end part of the inner tube is directly inserted into the outer tube, and the outer clamping piece is abutted against the fold of the outer tube, so that the outer tube is fixed on the inner tube, the clamping piece has a simple structure and low cost, and the use cost can be effectively reduced.

Description

Bellows connection structure

Technical Field

The utility model relates to the field of pipe connection methods, in particular to a corrugated pipe connection structure.

Background

The corrugated pipe refers to a pipeline with a corrugated cross-sectional profile of the side wall, and the pipeline can be bent according to the use requirement when in use.

In the related art, after the corrugated pipes are produced, the length of each corrugated pipe is limited, and the corrugated pipes are required to be connected with each other in the using process so as to meet the using length requirement. When the conventional pipeline is connected, the pipe joint is sleeved at the connecting position and then is bonded by glue. The side walls of the corrugated pipe are corrugated, so that the corrugated pipe cannot be connected in a conventional manner.

Therefore, various hoop structures for connecting the corrugated pipe are appeared in the market, and the annular bulge matched with the fold of the corrugated pipe is arranged on the inner side of the hoop. During installation, the end parts of the two corrugated pipes are coaxially opposite, then the anchor ear is sleeved at the end parts of the two corrugated pipes, the ring boss at the inner side of the anchor ear is clamped on the outer side wall of the corrugated pipe, and finally the anchor ear is locked by the bolts, so that the connection of the corrugated pipes can be completed.

In practical use, the anchor ear is used in a large amount when the corrugated pipe is used in a large amount in a large project, so that the use cost is increased. For this reason, the inventors have provided a low cost bellows connection structure.

Disclosure of Invention

In order to reduce construction cost, the utility model provides a corrugated pipe connecting structure.

The utility model provides a corrugated pipe connecting structure, which adopts the following technical scheme:

the corrugated pipe connecting structure comprises an inner pipe, an outer pipe and a clamping piece, wherein the outer pipe is a corrugated pipe body, and the inner diameter of the outer pipe is larger than the outer diameter of the inner pipe; a sliding groove is formed in the end part of the inner pipe and parallel to the axial direction of the inner pipe, the sliding groove is positioned on the outer side wall of the inner pipe, a slot with a larger slot width than the slot width of the sliding groove is formed in the bottom of the sliding groove on the inner pipe, and the clamping piece is slidably inserted into the slot; a clamping groove is formed in the side wall of the inner tube at the bottom of the slot, an inner clamping protrusion is arranged on the clamping piece, and the inner clamping protrusion is clamped in the clamping groove; the card is close to the one end at inner tube middle part is fixed with outer card protruding, outer card protruding for towards the plate body of inner tube middle part perk gradually.

By adopting the technical scheme, the clamping piece is arranged, when the inner pipe and the outer pipe are required to be connected, the clamping piece is only required to be inserted into the slot, and the inner clamping boss on the clamping piece can be inserted into the clamping slot to fix the clamping piece; then, one end of the inner tube, which is provided with the clamping piece, can be directly inserted into the outer tube, and in the inserting process, the outer clamping protrusion can be inwards pressed by the side wall of the outer tube, so that the outer clamping protrusion is elastically deformed, and is convenient to insert into the outer tube; after the outer clamping convex part enters the outer tube, the outer clamping convex part is propped against the fold of the outer tube under the elasticity of the outer clamping convex part, and if the inner tube is to be pulled out from the outer tube, the outer clamping convex part can be propped against the inner wall of the outer tube, so that the connection between the outer tube and the inner tube is realized; the card has small volume and simple structure, and can effectively reduce the use cost.

Optionally, the sliding groove, the clamping groove and the clamping piece are distributed in a plurality along the circumferential direction of the inner tube.

Through adopting above-mentioned technical scheme, with spout, draw-in groove and card along inner tube circumference distribution a plurality of, can effectively improve the joint strength of inner tube and outer tube.

Optionally, the inner clip protrusion is provided as a plate body gradually inclined toward the inner tube axis toward the inner tube end.

Through adopting above-mentioned technical scheme, set up the protruding plate body that is inwards inclined gradually towards inner tube tip with the interior card, when outwards pulling out the inner tube, the protruding more the card is tighter in the draw-in groove to improve joint strength.

Optionally, the card is close to the one end at inner tube middle part is fixed with the shell fragment, the shell fragment is towards the circular-arc plate body of inner tube outside arch, outer card is protruding to be located the high point of shell fragment.

By adopting the technical scheme, the elastic sheet is arranged on the clamping sheet, and when the inner tube is inserted into the outer tube, the elastic sheet can elastically deform, so that the inner tube is convenient to insert; after the elastic sheet enters the outer tube, the elastic sheet can jack the outer clamp protrusion to be clamped on the inner wall of the outer tube, and compared with the mode that the outer clamp protrusion is directly fixed on the clamp, the elastic sheet has better elastic performance and is convenient to use.

Optionally, the profile of the outer detent projection tapers away from the card side.

Through adopting above-mentioned technical scheme, set up the protruding tip of outer card as sharp, when using, the protruding tip of outer card can effectively improve the frictional force with the outer tube, prevents that outer card is protruding to skid.

Optionally, an avoidance groove is formed in the outer side wall of the inner tube at a position corresponding to the elastic sheet, and the avoidance groove is communicated with the sliding groove.

Through adopting above-mentioned technical scheme, offer on the inner tube and dodge the groove, the in-process of inner tube insertion outer tube, the shell fragment can be compressed and dodge the inslot, reduces the resistance of inner tube insertion outer tube.

Optionally, a reinforcing rib is arranged on the outer side wall of the inner tube at the periphery of the avoidance groove and the sliding groove.

Through adopting above-mentioned technical scheme, dodge the week side in groove and spout and set up the strengthening rib, can improve the structural strength who dodges groove and spout department, improve life.

Optionally, the lateral wall of inner tube is gone up in dodge the groove is kept away from the spout one side coaxial be provided with the spacing ring protruding, the tip butt of outer tube the spacing ring is protruding.

Through adopting above-mentioned technical scheme, the outside of inner tube is coaxial to be set up spacing ring protruding, and when the inner tube inserted the outer tube, spacing ring protruding can restrict the degree of depth that the inner tube inserted, avoids the inner tube to insert the deep waste that causes.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. through setting up the card on the inner tube, when needs connect inner tube and outer tube, only need insert the card in the slot, the interior card protruding on the card can insert in the draw-in groove and fix the card, then can be with the one end direct insertion outer tube of inner tube installation card, in the in-process of inserting, the protruding side wall of outer tube inwards presses, make the protruding elastic deformation that produces of outer card, conveniently insert the outer tube, after outer card protruding gets into the outer tube, the protruding external card is on the fold of outer tube under self elasticity, if want when extracting the inner tube from the outer tube, the protruding external card can support the outer tube inner wall tightly, realize the connection of outer tube and inner tube, the card is small, the structure is simple, can effectively reduce use cost;

2. through setting up the shell fragment on the card, with the protruding high point that sets up at the shell fragment of outer card, when inserting the outer tube with the inner tube, the shell fragment can produce elastic deformation, makes things convenient for the inner tube to insert, after the shell fragment gets into the outer tube, the shell fragment can be with the protruding jack-up card of outer card on the outer tube inner wall, compare in with the protruding direct fixation of outer card on the card, the elasticity performance of shell fragment is better, facilitates the use.

Drawings

FIG. 1 is a schematic overall structure of an embodiment of the present utility model;

FIG. 2 is a schematic view of the structure of an inner tube according to an embodiment of the present utility model;

fig. 3 is an enlarged view of the area a in fig. 2.

Reference numerals: 1. an inner tube; 11. a chute; 12. a slot; 13. a clamping groove; 14. an avoidance groove; 15. reinforcing ribs; 16. the limiting ring is convex; 2. an outer tube; 3. a card; 31. an inner clamping protrusion; 32. a spring plate; 33. the outer clip is convex.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-3.

The embodiment of the utility model discloses a corrugated pipe connecting structure, which comprises an inner pipe 1, an outer pipe 2 and a clamping piece 3, wherein the inner pipe 1 can be any cylindrical pipe, the outer pipe 2 is a corrugated pipe body, and the inner diameter of the outer pipe 2 is larger than or equal to the outer diameter of the inner pipe 1. A sliding groove 11 is formed in the outer wall of the end part of the inner pipe 1, the length direction of the sliding groove 11 is axially parallel to the inner pipe 1, and a plurality of sliding grooves 11 are distributed along the circumferential direction of the inner pipe 1; a slot 12 is arranged on the inner pipe 1 at the bottom of the chute 11, the length of the slot 12 is consistent with that of the chute 11, and the slot width of the slot 12 is larger than that of the chute 11. The number of the cards 3 corresponding to the number of the slots 12 is multiple, and the cards 3 are slidably inserted into the slots 12; an inner clamping protrusion 31 protruding towards one side of the inner tube 1 is formed in the middle of the card 3 in a punching mode, the inner clamping protrusion 31 is a plate body which gradually inclines inwards towards the end portion of the inner tube 1, a clamping groove 13 is formed in the inner tube 1 at a position corresponding to the inner clamping protrusion 31, and the inner clamping protrusion 31 is clamped in the clamping groove 13. The outer clamping convex 33 which is used for being abutted against the inner wall of the outer tube 2 is arranged on the clamping sheet 3, when the inner tube 2 is used, the clamping sheet 3 is installed at the end part of the inner tube 1, then the inner tube 1 can be inserted into the outer tube 2, and the outer clamping convex 33 can be abutted against the fold of the outer tube 2, so that the inner tube 1 and the outer tube 2 are connected.

The card 3 is close to the one end at inner tube 1 middle part an organic whole and is provided with shell fragment 32, and shell fragment 32 is the convex plate body of the air feed of one side of keeping away from inner tube 1, and the width of shell fragment 32 is less than the width of card 3. The outer clamping convex part 33 is formed by stamping at the high point of the elastic sheet 32, the outer clamping convex part 33 is a triangle plate body which gradually warps towards the middle part of the inner tube 1, and the outer clamping convex part 33 gradually tapers towards the middle part of the inner tube 1. The outer wall of the inner tube 1 is provided with an avoiding groove 14 at a position corresponding to the elastic sheet 32, and the avoiding groove 14 is communicated with the chute 11. In the process of inserting the inner tube 1 into the outer tube 2, the elastic sheet 32 is abutted by the inner wall of the outer tube 2 and pressed into the avoiding groove 14, so that the inner tube 1 is conveniently inserted into the outer tube 2; after entering the outer tube 2, the elastic sheet 32 can push the outer clamping protrusion 33 outwards, so that the outer clamping protrusion 33 is clamped on the fold of the outer tube 2, and clamping connection is realized.

The reinforcing ribs 15 are integrally formed on the outer wall of the inner tube 1 at the periphery of the sliding groove 11 and the avoiding groove 14, and the structural strength is low after the sliding groove 11 and the avoiding groove 14 are formed in the inner tube 1, so that the structural strength can be effectively improved by the reinforcing ribs 15. A limiting ring protrusion 16 is coaxially and integrally arranged on the outer wall of the inner tube 1 at one side of the avoiding groove 14 away from the sliding groove 11, and after the inner tube 1 is inserted into the outer tube 2, the limiting ring protrusion 16 is abutted against the end part of the outer tube 2 to prevent the inner tube 1 from being inserted too deeply.

The embodiment of the utility model discloses a corrugated pipe connecting structure, which is implemented by the following principle: by arranging the card 3, when the inner tube 1 and the outer tube 2 are required to be connected, the card 3 is only required to be inserted into the slot 12, and the inner card convex 31 on the card 3 can be clamped in the card slot 13, so that the card 3 is fixed; then, one end of the inner tube 1 with the clamping piece 3 is inserted into the outer tube 2, the outer tube 2 is abutted against the limiting ring boss 16, and the outer clamping boss 33 is abutted against the fold of the outer tube 2 under the action of the elastic piece 32, so that the clamping of the outer tube 2 is realized; if the inner tube 1 is to be pulled out, the outer clip 33 will abut against the convex edge of the inner wall of the outer tube 2. The whole structure is simple, the use is convenient, and the use cost can be effectively reduced.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. A bellows connection structure, its characterized in that: the corrugated pipe comprises an inner pipe (1), an outer pipe (2) and a clamping piece (3), wherein the outer pipe (2) is a corrugated pipe body, and the inner diameter of the outer pipe (2) is larger than the outer diameter of the inner pipe (1); a sliding groove (11) is formed in the end part of the inner pipe (1) parallel to the axial direction of the inner pipe (1), the sliding groove (11) is positioned on the outer side wall of the inner pipe (1), a slot (12) with the slot width larger than that of the sliding groove (11) is formed in the bottom of the sliding groove (11) on the inner pipe (1), and the card (3) is slidably inserted into the slot (12); a clamping groove (13) is formed in the side wall of the inner tube (1) at the bottom of the slot (12), an inner clamping protrusion (31) is arranged on the card (3), and the inner clamping protrusion (31) is clamped in the clamping groove (13); the card (3) is close to one end in inner tube (1) middle part is fixed with outer card protruding (33), outer card protruding (33) are towards the plate body of inner tube (1) middle part perk gradually.

2. A bellows joint structure according to claim 1, wherein: the sliding grooves (11), the clamping grooves (13) and the clamping pieces (3) are distributed in a plurality along the circumferential direction of the inner tube (1).

3. A bellows joint structure according to claim 1, wherein: the inner clamping convex (31) is arranged as a plate body which gradually inclines towards the axis of the inner tube (1) towards the end part of the inner tube (1).

4. A bellows joint structure according to claim 1, wherein: the card (3) is close to one end in the middle part of inner tube (1) is fixed with shell fragment (32), shell fragment (32) are the orientation inner tube (1) outside arched circular arc plate body, outer card protruding (33) are located the high point of shell fragment (32).

5. A bellows joint structure according to claim 4, wherein: the profile of the outer card projection (33) tapers away from the side of the card (3).

6. A bellows joint structure according to claim 4, wherein: an avoidance groove (14) is formed in the outer side wall of the inner tube (1) at a position corresponding to the elastic sheet (32), and the avoidance groove (14) is communicated with the sliding groove (11).

7. A bellows joint structure according to claim 6, wherein: the outer side wall of the inner pipe (1) is provided with reinforcing ribs (15) on the circumference sides of the avoidance groove (14) and the sliding groove (11).

8. A bellows joint structure according to claim 6, wherein: and a limiting ring boss (16) is coaxially arranged on one side, far away from the sliding groove (11), of the outer side wall of the inner pipe (1), and the end part of the outer pipe (2) is abutted against the limiting ring boss (16).