CN209781937U - A card-convex connection pipe fitting - Google Patents

Abstract

The utility model discloses a card-convex connection pipe fitting, which relates to the field of the card-convex connection of pipe fittings, in order to solve the problems in the prior art that the installation is convenient, the sealing performance is high, and the pipeline can be protected at the same time. One end of the first threaded connection pipe is provided with a first fixing block, and a first limiting rod is arranged on one side of the outer surface of the first fixing block, and there are two first limiting rods. One end of the limit rod is provided with a first limit block, a first connection outer sleeve is provided on one side of the first fixed block, and a first compression spring is provided outside the first connection outer sleeve, One end of the first connection outer sleeve is provided with a first connection block, a first rubber gasket is provided on one side of the outer surface of the first connection block, and a bolt is provided on the outer surface of the first connection block. There are four holes, and there are four bolt fixing holes, the interior of the bolt fixing holes is penetrated with a fixing bolt, and one end of the fixing bolt is provided with a fixing nut.

Description

A card-convex connection pipe fitting

technical field

The utility model relates to the field of card-convex connection of pipe fittings, in particular to a card-convex connection pipe.

Background technique

Common pipe fitting connection methods include compression type, ring pressure type, flanging type, bonded type, self-threaded type, socket type, socket welding type, concave ring type, clamp type, bolt type, and union type Connection methods such as flange connection, welding type, and snap-on connection, among which the snap-on connection method forms a tight ring and buckle fit through the convex ring pipe to be connected and the pipe connector, referred to as "snap-on connection method", which has a firm seal Good, the installation tool is light and simple, no electricity and silent operation, cheap price, quick and convenient installation and connection, etc.

Existing card-convex connection pipe fittings have limitations, such as difficulties in on-site construction of pipeline connections, large limitations in daily modification and maintenance, high technical requirements for construction personnel, difficulties in rapid assembly and connection, unstable on-site connections, and installation quality affected by the use environment, etc. Technical problem, in order to make installation convenient, high sealing, and at the same time protect the pipeline; therefore, the market urgently needs to develop a card-convex connection pipe fitting to help people solve existing problems.

Utility model content

The purpose of the present utility model is to provide a card-convex connection pipe fitting to solve the problems in the above-mentioned background technology in order to make the installation convenient, the sealing performance high, and at the same time protect the pipeline.

In order to achieve the above purpose, the utility model provides the following technical solutions: a card-convex connection pipe fitting, including a first threaded connection pipe, one end of the first threaded connection pipe is provided with a first fixing block, and the first fixing block One side of the outer surface is provided with a first limit rod, and there are two first limit rods, one end of the first limit rod is provided with a first limit block, and one side of the first fixed block The outer surface is provided with a first connecting sleeve, the outside of the first connecting sleeve is provided with a first compression spring, and one end of the first connecting sleeve is provided with a first connecting block, and the first connecting block A first rubber gasket is provided on the outer surface of one side, and the outer surface of the first connecting block is provided with bolt fixing holes, and there are four bolt fixing holes, and fixing bolts are penetrated inside the bolt fixing holes, One end of the fixing bolt is provided with a fixing nut, the outer surface of the first connecting block is provided with positioning holes, and there are two positioning holes, and one side of the first connecting block is provided with a second connecting block, so A second rubber gasket is provided on one side of the outer surface of the second connecting block, an inner insertion tube is arranged on one side of the second connection block, and a first One side of the first bump is provided with a second bump, one side of the second connection block is provided with a second connection sleeve, and the outside of the second connection sleeve is provided with a second extrusion Compression spring, one end of the second connection outer sleeve is provided with a second fixed block, and a second limit rod is provided on one side of the outer surface of the second fixed block, and there are two second limit rods, so A second limiting block is arranged at one end of the second limiting rod, and a second threaded connecting pipe is arranged on one side of the outer surface of the second fixing block.

Preferably, a second connecting inner sleeve is provided inside the second connecting outer sleeve, the outer diameter of the second connecting inner sleeve is consistent with the inner diameter of the second connecting outer sleeve, and the second connecting inner sleeve The sleeve and the second connecting outer sleeve are detachable structures, and the second connecting inner sleeve is integrally formed with the second connecting block.

Preferably, a mounting groove is provided on the outer surface of the second connecting inner sleeve, and a second sealing ring is installed in the mounting groove, and there are three second sealing rings, and the second connecting inner sleeve One end is provided with a second sealing ring, and one side of the second sealing ring is provided with a second stopper, and the second sealing ring is glued to the second stopper.

Preferably, the inside of the first connecting outer sleeve is provided with a first connecting inner sleeve, the first connecting inner sleeve and the first connecting outer sleeve are detachable structures, and the outer portion of the first connecting inner sleeve The diameter size is consistent with the inner diameter size of the first connection outer sleeve, and the first connection inner sleeve is integrally formed with the first connection block.

Preferably, an installation groove is provided on the outer surface of the first connection inner sleeve, and a first sealing apron is installed in the installation groove, and there are three first sealing aprons, and the first connection inner sleeve One end is provided with a first sealing ring, one side of the first sealing ring is provided with a first stopper, the first sealing ring is glued to the first stopper, and the inside of the first connection inner sleeve is provided with A sealing rubber sleeve, the sealing rubber sleeve is glued to the first connecting inner sleeve.

Preferably, the first limiting rod and the second limiting rod respectively pass through the first connecting block and the second connecting block, and the first limiting rod and the second limiting rod are connected to the first limiting block and the second limiting rod respectively. The two limit blocks are integrally formed, the first limit block and the second limit block are spherical, and the diameters of the first limit block and the second limit block are respectively the same as those on the first connection block and the second connection block. The diameter of the positioning hole is the same.

Preferably, the first compression spring and the second compression spring are respectively sleeved on the outer surfaces of the first connection outer sleeve and the second connection outer sleeve, and the two ends of the first compression spring respectively abut against the second On one side of the outer surface of a fixed block and the first connecting block, the two ends of the second pressing spring respectively abut against one side of the second fixing block and the second connecting block.

Preferably, the first rubber gasket and the second rubber gasket are pasted on the symmetrical outer surfaces of the first connecting block and the second connecting block respectively.

Compared with the prior art, the beneficial effects of the utility model are:

1. In this utility model, an inner insertion tube is provided on one side of the outer surface of the second connection block, and the inner insertion tube is integrally formed with the second connection block, and the first protrusion and the second protrusion are arranged on the outer surface of the inner insertion tube At the same time, an inner tube groove is set inside the first connecting inner sleeve, and a sealing rubber sleeve is set on the outer surface of the inner tube groove, so the inner insertion tube is installed inside the first connecting inner sleeve, sealing The rubber sleeve can ensure the tightness of the connection, which makes the connection of the connecting pipe convenient and has high sealing performance.

2. In this utility model, the first rubber gasket is pasted on the outer surface of one side of the first connecting block, and the second rubber gasket is pasted on the outer surface of one side of the second connecting block. The first connecting block is connected with the second They are connected together by fixing bolts, and at the same time, the first rubber gasket and the second rubber gasket are tightly fitted together to ensure the sealing performance of the joint, and at the same time, the installation of the connecting pipe fittings is provided by fixing the fixing bolts. convenience.

3. In this utility model, a first connecting inner sleeve is arranged inside the first connecting outer sleeve, and an installation groove is arranged on the outer surface of the first connecting inner sleeve, and the first sealing ring is installed in the installation groove, and at the same time the first The connecting inner sleeve and the first connecting outer sleeve are detachable structures, so the first connecting inner sleeve can perform telescopic movement inside the first connecting outer sleeve, and the first sealing ring can ensure its contact surface during the telescopic movement. The tightness of the pipe eliminates the stress generated by the pipeline when the fluid is transmitted, so that the connecting pipe has the function of a compensator.

4. In this utility model, a second connecting inner sleeve is arranged inside the second connecting outer sleeve, and an installation groove is arranged on the outer surface of the second connecting inner sleeve, and a second sealing ring is installed in the installation groove, and at the same time the second The connecting inner sleeve and the second connecting outer sleeve are detachable structures, so the second connecting inner sleeve can perform telescopic movement inside the second connecting outer sleeve, and the second sealing ring can ensure its contact surface during the telescopic movement. The tightness of the pipe eliminates the stress generated by the pipeline when the fluid is transmitted, so that the connecting pipe has the function of a compensator.

5. In this utility model, the first extruding spring and the second extruding spring are respectively socketed on the outer surfaces of the first connecting outer casing and the second connecting outer casing, and the two ends of the first extruding spring respectively abut against the second extruding spring. On one side of the outer surface of a fixed block and the first connecting block, the two ends of the second extrusion spring are respectively against the second fixed block and one side of the second connecting block on the outer surface, so that the first connecting block and the second connecting block The two connecting blocks can always be tightly fitted together, avoiding pipeline leakage caused by loosening of fixing bolts.

6. The utility model sets the first limit rod and the second limit rod, and sets the first limit block and the second limit block at one end of the first limit rod and one end of the second limit rod respectively, This makes the phenomenon that the first connecting inner sleeve and the first connecting outer sleeve will not separate and fall off, and also ensures that the second connecting inner sleeve and the second connecting outer sleeve will not separate and fall off, and the first The limiting block and the second limiting block can pass through the positioning holes on the outer surfaces of the first connecting block and the second connecting block, so they can play a positioning role and facilitate the installation of the connecting pipe.

Description of drawings

Fig. 1 is the overall schematic diagram of the utility model;

Fig. 2 is the top view of the utility model;

Fig. 3 is a side view of the utility model;

Fig. 4 is the internal structure diagram of the first connecting outer casing of the present invention;

Fig. 5 is a diagram of the internal structure of the second connecting sleeve of the present invention.

In the figure: 1. The first threaded connecting pipe; 2. The first fixed block; 3. The first squeeze spring; 4. The first connecting outer sleeve; 5. The first limit rod; 6. The first limit block; 7. First rubber gasket; 8. Bolt fixing hole; 9. Positioning hole; 10. Fixing nut; 11. First connecting block; 12. Inner tube; 13. First bump; 14. Second connecting block ; 15, the second extrusion spring; 16, the first connection inner casing; 17, the second limit rod; 18, the fixing bolt; 19, the second fixing block; 20, the second threaded connection pipe; 21, the second Limiting block; 22, the second rubber gasket; 23, the second bump; 24, the second connecting inner sleeve; 25, the second connecting outer sleeve; 26, sealing rubber sleeve; 27, the first sealing apron ; 28, the first sealing ring; 29, the first block; 30, the second sealing ring; 31, the second block; 32, the second sealing ring.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example.

Please refer to Fig. 1-5, an embodiment provided by the utility model: a kind of convex connecting pipe fitting, including a first threaded connecting pipe 1, one end of the first threaded connecting pipe 1 is provided with a first fixing block 2, and a second One side outer surface of a fixed block 2 is provided with a first stop rod 5, and there are two first stop rods 5, and one end of the first stop rod 5 is provided with a first stop block 6, the first fixed A first connecting outer sleeve 4 is arranged on one side of the block 2, and a first compression spring 3 is arranged on the outside of the first connecting outer sleeve 4, and a first connecting block 11 is arranged at one end of the first connecting outer sleeve 4, A first rubber gasket 7 is arranged on one side outer surface of the first connecting block 11, and a bolt fixing hole 8 is arranged on the outer surface of the first connecting block 11, and there are four bolt fixing holes 8, and the bolt fixing holes 8 A fixing bolt 18 is penetrated inside, and one end of the fixing bolt 18 is provided with a fixing nut 10, and a positioning hole 9 is provided on the outer surface of the first connecting block 11, and there are two positioning holes 9, and one side of the first connecting block 11 is provided with There is a second connection block 14, a second rubber gasket 22 is arranged on one side outer surface of the second connection block 14, and an inner insertion tube 12 is arranged on one side outer surface of the second connection block 14, and the inner insertion tube 12 The outer surface is provided with a first bump 13, one side of the first bump 13 is provided with a second bump 23, one side of the second connection block 14 is provided with a second connecting outer sleeve 25, and the second connecting outer sleeve 25 A second squeeze spring 15 is provided on the outside of the second connecting sleeve 25, and a second fixing block 19 is arranged at one end of the second connecting outer sleeve 25, and a second limit rod 17 is arranged on one side of the outer surface of the second fixing block 19, and the second There are two limiting rods 17 , one end of the second limiting rod 17 is provided with a second limiting block 21 , and one side outer surface of the second fixing block 19 is provided with a second threaded connecting pipe 20 .

Further, the inside of the second connecting outer sleeve 25 is provided with a second connecting inner sleeve 24, the outer diameter of the second connecting inner sleeve 24 is consistent with the inner diameter of the second connecting outer sleeve 25, and the second connecting inner sleeve 24 The second connection outer sleeve 25 is a detachable structure, and the second connection inner sleeve 24 is integrally formed with the second connection block 14 .

Further, the outer surface of the second connection inner sleeve 24 is provided with an installation groove, and a second sealing apron 30 is installed in the installation groove, and there are three second sealing aprons 30, one end of the second connection inner sleeve 24 A second sealing ring 32 is provided, and a second stopper 31 is provided on one side of the second sealing ring 32 , and the second sealing ring 32 is glued to the second stopper 31 .

Further, the inside of the first connecting outer sleeve 4 is provided with a first connecting inner sleeve 16, the first connecting inner sleeve 16 and the first connecting outer sleeve 4 are detachable structures, the outer diameter of the first connecting inner sleeve 16 Consistent with the inner diameter of the first connecting outer sleeve 4 , the first connecting inner sleeve 16 is integrally formed with the first connecting block 11 .

Further, an installation groove is provided on the outer surface of the first connecting inner sleeve 16, and a first sealing apron 27 is installed in the installing groove, and there are three first sealing aprons 27, one end of the first connecting inner sleeve 16 A first sealing ring 28 is provided, and a first stopper 29 is provided on one side of the first sealing ring 28. The first sealing ring 28 is glued to the first stopper 29, and the inside of the first connection inner sleeve 16 is provided with a sealing The rubber sleeve 26, the sealing rubber sleeve 26 is connected with the first connecting inner sleeve 16 by glue.

Further, the first limiting rod 5 and the second limiting rod 17 pass through the first connecting block 11 and the second connecting block 14 respectively, and the first limiting rod 5 and the second limiting rod 17 are connected with the first limiting rod respectively. The block 6 and the second limit block 21 are integrally formed, the first limit block 6 and the second limit block 21 are spherical, and the diameters of the first limit block 6 and the second limit block 21 are respectively connected with the first limit block. The positioning holes 9 on the block 11 and the second connecting block 14 have the same diameter.

Further, the first compression spring 3 and the second compression spring 15 are respectively sleeved on the outer surfaces of the first connection outer sleeve 4 and the second connection outer sleeve 25, and the two ends of the first compression spring 3 respectively abut against the second On one side outer surface of a fixed block 2 and the first connecting block 11 , the two ends of the second compression spring 15 abut against one side outer surface of the second fixing block 19 and the second connecting block 14 respectively.

Further, the first rubber gasket 7 and the second rubber gasket 22 are pasted on the symmetrical outer surfaces of the first connecting block 11 and the second connecting block 14 respectively.

Working principle: When in use, firstly connect the first threaded connection pipe 1 and the second threaded connection pipe 20 to both ends of the pipes to be butted, and then insert the inner insertion pipe 12 into the inside of the first connection inner casing 16, because the second A sealing rubber sleeve 26 is arranged inside the connecting inner sleeve, and a first bump 13 and a second bump 23 are arranged on the outer surface of the inner inserting tube 12, so that the inner inserting tube 12 can be ensured to be positioned at the first connection. The inside of the inner sleeve 16 has a higher sealing performance. At this time, the first connecting block 11 and the second connecting block 14 are attached together, and the first rubber gasket 7 and the second rubber gasket 22 are attached together. , and then the first connecting block 11 and the second connecting block 14 are fixedly connected by the fixing bolt 18. At this time, the first limiting block 6 passes through the positioning hole 9 on the outer surface of the second connecting block 14, and the second limiting block 21 Through the positioning hole 9 on the outer surface of the first connection block 11, the first compression spring 3 and the second compression spring 15 are sleeved on the outer surfaces of the first connection outer sleeve 4 and the second connection outer sleeve 25 respectively. At the same time, the two ends of the first compression spring 3 respectively abut against the first connection block 11 and one side outer surface of the first fixed block 2, and the two ends of the second compression spring 15 respectively abut against the second connection block 14 and the first fixed block 2 respectively. On one side of the outer surface of the second fixed block 19, the first connecting inner sleeve 16 and the first connecting outer sleeve 4 are detachable structures, and the second connecting inner sleeve 24 and the second connecting outer sleeve 25 are detachable structures , so when the pipeline transports fluid to generate stress, the connecting pipe can act as a compensator to protect the pipeline.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to be included in the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (8)

1. A card convex connection pipe fitting, comprising a first threaded connection pipe (1), characterized in that: one end of the first threaded connection pipe (1) is provided with a first fixing block (2), and the first One side outer surface of the fixed block (2) is provided with a first limiting rod (5), and there are two first limiting rods (5), and one end of the first limiting rod (5) is provided with a second A limit block (6), a first connecting outer sleeve (4) is provided on one side of the first fixing block (2), and a first connecting outer sleeve (4) is provided on the outside of the first connecting outer sleeve (4). Squeeze the spring (3), one end of the first connection outer sleeve (4) is provided with a first connection block (11), and a first rubber pad is provided on one side of the outer surface of the first connection block (11) sheet (7), the outer surface of the first connecting block (11) is provided with bolt fixing holes (8), and there are four bolt fixing holes (8), and the interior of the bolt fixing holes (8) is penetrated with Fixing bolt (18), one end of described fixing bolt (18) is provided with fixing nut (10), and the outer surface of described first connection block (11) is provided with positioning hole (9), and positioning hole (9) There are two, one side of the first connection block (11) is provided with a second connection block (14), and one side of the second connection block (14) is provided with a second rubber gasket (22) ), the outer surface of one side of the second connection block (14) is provided with an inner intubation tube (12), and the outer surface of the inner intubation tube (12) is provided with a first bump (13), the One side of the first bump (13) is provided with a second bump (23), and one side of the second connection block (14) is provided with a second connecting sleeve (25), and the second connecting sleeve The outside of (25) is provided with second extruding spring (15), and one end of described second connection outer tube (25) is provided with second fixed block (19), and one side of described second fixed block (19) The outer surface is provided with a second limiting rod (17), and there are two second limiting rods (17), and one end of the second limiting rod (17) is provided with a second limiting block (21), A second threaded connection pipe (20) is arranged on one side outer surface of the second fixing block (19). 2. A card-convex connection pipe fitting according to claim 1, characterized in that: a second connection inner sleeve (24) is arranged inside the second connection outer sleeve (25), and the second connection The outer diameter of the inner sleeve (24) is consistent with the inner diameter of the second connecting outer sleeve (25), and the second connecting inner sleeve (24) and the second connecting outer sleeve (25) are detachable structures, so The second connecting inner sleeve (24) is integrally formed with the second connecting block (14). 3. A card-convex connection pipe fitting according to claim 2, characterized in that: an installation groove is arranged on the outer surface of the second connection inner sleeve (24), and a second seal is installed in the installation groove. Aprons (30), and there are three second sealing aprons (30), and one end of the second connection inner sleeve (24) is provided with a second sealing ring (32), and the second sealing ring (32) A second stopper (31) is arranged on one side of the second stopper (31), and the second sealing ring (32) is connected with the second stopper (31) by glue. 4. A card-convex connection pipe fitting according to claim 1, characterized in that: a first connection inner sleeve (16) is provided inside the first connection outer sleeve (4), and the first connection The inner sleeve (16) and the first connecting outer sleeve (4) are detachable structures, and the outer diameter of the first connecting inner sleeve (16) is consistent with the inner diameter of the first connecting outer sleeve (4). The first connecting inner sleeve (16) is integrally formed with the first connecting block (11). 5. A card-convex connection pipe fitting according to claim 4, characterized in that: an installation groove is arranged on the outer surface of the first connection inner sleeve (16), and a first seal is installed in the installation groove. Aprons (27), and there are three first sealing aprons (27), and one end of the first connecting inner sleeve (16) is provided with a first sealing ring (28), and the first sealing ring (28) A first stopper (29) is provided on one side of the first stopper (29), the first sealing ring (28) is connected with the first stopper (29) by glue, and the inside of the first connection inner sleeve (16) is provided with a sealing rubber A sleeve (26), the sealing rubber sleeve (26) is connected with the first connecting inner sleeve (16) by glue. 6. A snap-on connection pipe fitting according to claim 1, characterized in that: the first limit rod (5) and the second limit rod (17) respectively penetrate through the first connecting block (11) and the second connecting block (14), and the first limiting rod (5) and the second limiting rod (17) are integrally formed with the first limiting block (6) and the second limiting block (21) respectively, so The first limiting block (6) and the second limiting block (21) are spherical, and the diameters of the first limiting block (6) and the second limiting block (21) are respectively the same as the first connecting block (11) ) is consistent with the diameter of the positioning hole (9) on the second connection block (14). 7. A snap-on connection pipe fitting according to claim 1, characterized in that: the first compression spring (3) and the second compression spring (15) are respectively sleeved on the first connection outer sleeve ( 4) and the outer surface of the second connection outer sleeve (25), the two ends of the first compression spring (3) are respectively against one side of the first fixed block (2) and the first connection block (11) On the outer surface, the two ends of the second pressing spring (15) respectively abut against the outer surface of one side of the second fixing block (19) and the second connecting block (14). 8. A snap-on connection pipe fitting according to claim 1, characterized in that: the first rubber gasket (7) and the second rubber gasket (22) are respectively pasted on the first connecting block (11) On the symmetrical outer surface with the second connection block (14).