CN211649470U

CN211649470U - Metal corrugated pipe

Info

Publication number: CN211649470U
Application number: CN201922454072.4U
Authority: CN
Inventors: 唐磊; 庄慧青; 李贵仁
Original assignee: Haoyin Ningbo Bellows Technology Co ltd
Current assignee: Haoyin Ningbo Bellows Technology Co ltd
Priority date: 2019-12-28
Filing date: 2019-12-28
Publication date: 2020-10-09
Anticipated expiration: 2029-12-28

Abstract

The utility model relates to a corrugated metal pipe relates to the technical field of bellows, and it includes the body and sets up in the connector at body both ends, the connector includes fastening portion and the screw thread portion that sets up with a body, still includes the end cover with screw thread portion threaded connection, be provided with the mounting groove that supplies screw thread portion to wear to establish in the end cover, fastening portion cover is equipped with the locking subassembly, the locking subassembly keeps end cover and connector relatively fixed. The utility model discloses have the effect that debris can't get into the bellows from the both ends of bellows in the transportation.

Description

Metal corrugated pipe

Technical Field

The utility model belongs to the technical field of the technique of bellows and specifically relates to a corrugated metal pipe is related to.

Background

The metal corrugated pipe is a pipe with a regular wave shape, and the commonly used metal corrugated pipe comprises carbon steel, stainless steel, steel lining plastic, aluminum and the like. The connecting device is mainly used for non-concentric axial transmission with small bending radius or irregular turning and stretching, or absorbing thermal deformation of a pipeline and the like, and is commonly used for connecting the pipeline and the equipment in the occasions of installing fixed elbows.

Common gas is corrugated metal pipe for pipeline is as shown in fig. 1, including body 1 and set up in the connector 2 at body 1 both ends, connector 2 includes fastening portion 21 and the screw thread portion 22 that sets up with body 1 an organic whole, and the outside circumference of fastening portion 21 is provided with six first butt faces 23, and first butt face 23 splices each other and is the hexagon setting, facilitates the use of instruments such as spanner with screw thread portion 22 and external threaded connection reach the effect that bellows and equipment are connected.

The above prior art solutions have the following drawbacks: in the transportation process, the situation that sundries enter the corrugated pipe from the openings at the two ends often or happens, and the air is blown into the pipeline to blow out the sundries in the installation process, so that the transportation process is very inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a to the not enough of prior art existence, the utility model aims at providing one kind in the transportation debris can't get into the bellows from the both ends of bellows.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a corrugated metal pipe, includes the end cover with screw thread portion threaded connection, be provided with the mounting groove that supplies screw thread portion to wear to establish in the end cover, fastening pot head is equipped with the locking subassembly, the locking subassembly keeps end cover and connector relatively fixed.

Through adopting above-mentioned technical scheme, the effectual effect that shields is played at the both ends of pipeline to the setting of end cover, cuts off with external in the bellows, and threaded connection's mode is convenient to be fixed the connector of end cover and pipeline simultaneously, and the setting of locking subassembly can prevent effectively that end cover and pipeline from breaking away from owing to not hard up and producing in the transportation, prevents effectively that external debris from getting into in the bellows.

The present invention may be further configured in a preferred embodiment as: and the bottom of the mounting groove is provided with a protection column penetrating through the threaded part.

Through adopting above-mentioned technical scheme, the area of contact of end cover and connector has been increased in the setting of guard post, has improved the stability when the end cover is fixed effectively, has improved holistic structural strength.

The present invention may be further configured in a preferred embodiment as: the protective column is sleeved with an elastic ring which is mutually abutted with one end, far away from the end cover, of the threaded portion.

Through adopting above-mentioned technical scheme, because end cover and connector are threaded connection's mode, can produce the emergence that has the space and produce the condition that not hard up leads to breaking away from between internal thread and the external screw thread, the setting up of elastic ring makes when the elastic ring is compressed, can produce the elasticity of opposite direction deformation, can guarantee to support tightly each other between internal thread and the external screw thread, through the mode increase frictional force of increase pressure the two, avoid taking place the condition that takes off, the setting up of elastic ring can play the effect of protection to screw portion simultaneously, avoid causing the damage because the overtightening of the end cover and many elastic rings.

The present invention may be further configured in a preferred embodiment as: the locking subassembly is located the outer fastening block of fastening portion including the cover, be provided with the groove of wearing to establish that supplies fastening portion to wear to establish in the fastening block, the tank bottom of wearing to establish the groove is provided with the through hole that supplies the end cover to wear to establish, an organic whole is provided with the spacing ring piece that sets up in wearing to establish the inslot on the end cover, the inner wall of fastening block is provided with a plurality of second butt faces with the mutual butt of first butt face, and is a plurality of the one end that spacing ring piece was kept away from to the second butt face all is provided with spacing fixture block, the one end looks butt of screw portion is kept away from to spacing fixture block and fastening portion, the one end that spacing ring piece was kept away from to the fastening block just is located the junction of adjacent second.

Through adopting above-mentioned technical scheme, after fastening portion installed, because the setting of first butt face and second butt face and spacing fixture block and fastening portion looks butt's mode for spacing ring piece is restricted between wear-to-establish groove and fastening portion, makes the end cover unable to break away from, has strengthened the joint strength of end cover.

The present invention may be further configured in a preferred embodiment as: and a cushion pad is arranged between the limiting ring block and the bottom of the through groove.

Through adopting above-mentioned technical scheme, the setting of blotter has avoided the direct stress that leads to between the two too big through contradicting in the bottom of spacing ring piece and the wearing to establish groove, and the setting of blotter has disperseed the stress concentration between spacing ring piece and the fastening block effectively, has played the effect of protection to locking subassembly and end cover.

The present invention may be further configured in a preferred embodiment as: the second abutting surface is provided with an elastic bulge, and the first abutting surface is provided with a limiting groove for the elastic bulge to penetrate through.

Through adopting above-mentioned technical scheme, the mode that the spacing groove was worn to locate by the elastic bulge has further strengthened the fixed strength between fastening block and the fastening portion.

The present invention may be further configured in a preferred embodiment as: and one end of the limiting fixture block, which is far away from the bottom of the through groove, is provided with a guide surface.

Through adopting above-mentioned technical scheme, setting up of spigot surface has made things convenient for and has installed fastening portion, can be opened and assemble to predetermined position by the top automatically through the spacing fixture block of setting up of spigot surface, has greatly shortened the assemble duration, has improved assembly efficiency.

The present invention may be further configured in a preferred embodiment as: the outer side surface circumference array of end cover is provided with a plurality of first spacing faces, on the fastening block and be located through hole department and be provided with a plurality of and a plurality of first spacing face one-to-one and the spacing face of second of mutual butt.

Through adopting above-mentioned technical scheme, the setting up of first spacing face has played the effect that the convenience was dismantled and is assembled the spiral cover, simultaneously through the mode of the mutual butt of first spacing face and the spacing face of second, because fastening block and fastening portion relatively fixed, thereby make the spiral cover can't take place relative rotation with the fastening block, further avoid the end cover to rotate with screw portion direction and lead to the emergence of the condition that the pine takes off, further improved the fixed strength of end cover.

The present invention may be further configured in a preferred embodiment as: the first limiting surface is provided with anti-skidding grooves, and the second limiting surface is integrally provided with positioning blocks penetrating through the anti-skidding grooves.

Through adopting above-mentioned technical scheme, the setting up of antiskid groove makes and can avoid hand and end cover to take place to skid dismantling the in-process, and the setting up of locating piece has improved the area of contact between fastening block and the end cover simultaneously, has improved the relatively fixed intensity between the two effectively.

The present invention may be further configured in a preferred embodiment as: the outer peripheral face of fastening piece is provided with a plurality of and the first butt face one-to-one parallel place the face.

Through adopting above-mentioned technical scheme, the setting up of placing the face makes in the transportation, and the face of placing can contact with ground, avoids taking place the emergence of rolling condition in the transportation, avoids colliding each other between the corrugated metal pipe, improves the transportation quality.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the arrangement of the end cover effectively plays a role of internal and external partition on two ends of the pipeline, meanwhile, the threaded connection mode is convenient for fixing the end cover and the connector of the pipeline, the arrangement of the locking assembly can effectively prevent the end cover and the pipeline from being separated due to looseness in the transportation process, and external sundries are effectively prevented from entering the corrugated pipe;

2. after the fastening part is installed, due to the arrangement of the first abutting surface and the second abutting surface and the manner that the limiting fixture block abuts against the fastening part, the limiting ring block is limited between the penetrating groove and the fastening part, so that the end cover cannot be separated, and the connection strength of the end cover is enhanced;

3. the arrangement of the placing surface enables rolling conditions to be avoided in the transportation process, mutual collision between the metal corrugated pipes is avoided, and transportation quality is improved.

Drawings

Fig. 1 is a schematic structural diagram of a metal corrugated pipe in the prior art.

Fig. 2 is a schematic structural view of the metal bellows in the embodiment.

Fig. 3 is an exploded view of the metal bellows in the example.

Fig. 4 is a schematic structural view of the end cap.

Fig. 5 is a schematic view of the structure of the fastening block.

In the figure, 1, a tube body; 2. a connector; 21. a fastening section; 22. a threaded portion; 23. a first abutting surface; 24. a limiting groove; 3. an end cap; 31. mounting grooves; 32. a first limiting surface; 33. an anti-slip groove; 34. a guard post; 35. an elastic ring; 41. a fastening block; 42. a groove is arranged in a penetrating way; 43. a through hole; 44. a second limiting surface; 45. positioning blocks; 46. a limit ring block; 47. a second abutting surface; 48. a limiting clamping block; 49. a deformation groove; 410. an elastic bulge; 411. placing the noodles; 5. a cushion pad.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 2 and 3, for the utility model discloses a corrugated metal pipe, including body 1 and set up in the connector 2 at body 1 both ends, still including setting up on connector 2 and being used for preventing external dust to get into end cover 3 in body 1 and strengthen the locking subassembly of end cover 3 fixed strength.

Referring to fig. 3 and 4, the end cover 3 is provided with a mounting groove 31 through which the thread portion 22 penetrates, the outer side surface of the end cover 3 is provided with a plurality of first limiting surfaces 32 in a circumferential array, and the first limiting surfaces 32 are provided with anti-slip grooves 33. The end cover 3 and the thread part 22 are relatively fixed in a threaded connection mode, a protection column 34 penetrating the thread part 22 is integrally arranged at the bottom of the installation groove 31, and the diameter of the protection column 34 is the same as that of the inner wall of the thread part 22. The protection column 34 is sleeved with an elastic ring 35 which is abutted against one end of the threaded portion 22 far away from the end cover 3, the other end of the elastic ring 35 is abutted against the bottom of the installation groove 31, the elastic ring 35 can be made of rubber materials such as styrene butadiene rubber or butadiene acrylonitrile rubber, in the embodiment, the elastic ring 35 is preferably made of butadiene acrylonitrile rubber, and the elastic ring 35 made of the material can also play a certain sealing effect to prevent water or oil from entering the pipe body 1 to cause damage.

Referring to fig. 3 and 5, the locking assembly includes a fastening block 41 sleeved outside the fastening portion 21, a through groove 42 is provided in the fastening block 41 for the fastening portion 21 to penetrate through, a through hole 43 is provided at the bottom of the through groove 42 for the end cover 3 to penetrate through, a plurality of second limiting surfaces 44 corresponding to the first limiting surfaces 32 one by one and abutting against each other are provided on the fastening block 41 and located at the through hole 43, a positioning block 45 penetrating through the anti-slip groove 33 is integrally provided on the second limiting surface 44, and correspondingly, the cross section of the second limiting surface 44 also provided with six and the through hole 43 is hexagonal.

The end cover 3 is integrally provided with a limit ring block 46 arranged in the through groove 42, the inner wall of the fastening block 41 is provided with a plurality of second abutting surfaces 47 abutting against the first abutting surfaces 23, in this embodiment, preferably six second abutting surfaces 47 are provided, one end of each second abutting surface 47 far away from the limit ring block 46 is integrally provided with a limit fixture block 48 abutting against one end of the fastening portion 21 far away from the threaded portion 22, a connecting portion of one end of the fastening block 41 far away from the limit ring block 46 and located at the second abutting surface 47 is provided with a deformation groove 49, the arrangement of the deformation grooves 49 enables the adjacent deformation grooves 49 to be deformed and bent, the limit fixture block 48 is conveniently clamped or separated from the preset installation position, meanwhile, the limit fixture block 48 is clamped, and one end of the limit fixture block 48 far away from the bottom of the through groove 42 is provided with a guide surface.

A buffer pad 5 is arranged between the limit ring block 46 and the bottom of the through groove 42, the buffer pad 5 is used for dispersing the stress at the joint to avoid stress concentration, and the buffer pad 5 is made of a rubber material, such as styrene butadiene rubber or butadiene acrylonitrile rubber, and in this embodiment, is preferably made of styrene butadiene rubber.

In order to enhance the fixing strength between the fastening block 41 and the fastening portion 21, the second abutting surface 47 is provided with an elastic protrusion 410, and the first abutting surface 23 is provided with a limiting groove 24 for the elastic protrusion 410 to penetrate through.

Meanwhile, the outer circumferential surface of the fastening block 41 is provided with a plurality of placing surfaces 411 that are parallel to the first contact surfaces 23 one by one, and it should be noted that the placing surfaces 411 are also connected to each other so that the outer circumferential surface of the fastening block 41 is formed in a hexagonal shape.

The installation process of this embodiment is: the elastic ring 35 is sleeved on the protective column 34, the end cover 3 and the thread part 22 are in threaded connection and fixed reliably, the cushion pad 5 is sleeved outside the end cover 3, the fastening block 41 is installed along one end provided with the limiting clamping block 48, the limiting clamping block 48 is abutted to one end, far away from the thread part 22, of the fastening part 21, and installation is completed.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a corrugated metal pipe, includes body (1) and sets up in connector (2) at body (1) both ends, and connector (2) include fastening portion (21) and screw thread portion (22) that set up with body (1) an organic whole, its characterized in that: include end cover (3) with screw thread portion (22) threaded connection, be provided with mounting groove (31) that confession screw thread portion (22) were worn to establish in end cover (3), fastening portion (21) cover is equipped with the locking subassembly, the locking subassembly keeps end cover (3) and connector (2) relatively fixed.

2. The metal bellows of claim 1, wherein: and a protection column (34) penetrating through the threaded part (22) is arranged at the bottom of the mounting groove (31).

3. The metal bellows according to claim 2, wherein: the protective column (34) is sleeved with an elastic ring (35) which is abutted to one end, far away from the end cover (3), of the threaded portion (22).

4. The metal bellows of claim 1, wherein: the locking component comprises a fastening block (41) sleeved outside the fastening part (21), a penetrating groove (42) for the fastening part (21) to penetrate is arranged in the fastening block (41), the bottom of the through groove (42) is provided with a through hole (43) for the end cover (3) to pass through, the end cover (3) is integrally provided with a limit ring block (46) arranged in the through groove (42), a plurality of second abutting surfaces (47) which are mutually abutted with the first abutting surfaces (23) are arranged on the inner wall of the fastening block (41), a limiting fixture block (48) is arranged at one end of each of the plurality of second abutting surfaces (47) far away from the limiting ring block (46), the limiting clamping block (48) is abutted with one end of the fastening part (21) far away from the thread part (22), the fastening block (41) is far away from one end of the limiting ring block (46) and is provided with a deformation groove (49) at the joint of the adjacent second abutting surfaces (47).

5. The metal bellows of claim 4, wherein: a cushion pad (5) is arranged between the limiting ring block (46) and the bottom of the through groove (42).

6. The metal bellows of claim 5, wherein: the second abutting surface (47) is provided with an elastic bulge (410), and the first abutting surface (23) is provided with a limiting groove (24) for the elastic bulge (410) to penetrate through.

7. The metal bellows of claim 6, wherein: and a guide surface is arranged at one end of the limiting clamping block (48) far away from the bottom of the through groove (42).

8. The metal bellows of claim 7, wherein: the outer side surface of the end cover (3) is circumferentially provided with a plurality of first limiting surfaces (32), and a plurality of second limiting surfaces (44) which are in one-to-one correspondence with the first limiting surfaces (32) and mutually abutted are arranged on the fastening block (41) and are positioned in the through hole (43).

9. The metal bellows of claim 8, wherein: the anti-skidding type positioning device is characterized in that anti-skidding grooves (33) are formed in the first limiting surface (32), and positioning blocks (45) penetrating through the anti-skidding grooves (33) are integrally arranged on the second limiting surface (44).

10. The metal bellows of claim 9, wherein: the outer peripheral surface of the fastening block (41) is provided with a plurality of placing surfaces (411) which are parallel to the first abutting surfaces (23) one by one.