CN215258411U

CN215258411U - Pneumatic stop pipe joint

Info

Publication number: CN215258411U
Application number: CN202120962350.1U
Authority: CN
Inventors: 梁立军; 饶先怡
Original assignee: Ningbo Aifeite Automation Technology Co ltd
Current assignee: Ningbo Aifeite Automation Technology Co ltd
Priority date: 2021-05-07
Filing date: 2021-05-07
Publication date: 2021-12-21
Anticipated expiration: 2031-05-07

Abstract

The utility model discloses a pneumatic stop pipe joint, which comprises a pipe joint pipe and an air pipe, wherein the pipe joint pipe comprises a linking pipe, a joint pipe and an installation pipe, the linking pipe is provided with a thread for connecting a pipeline, and the pneumatic stop pipe joint also comprises a pneumatic stop piece and an air pipe fixing piece; the pneumatic stop piece is arranged in the inner cavity of the pipe joint pipe and comprises a pneumatic stop valve arranged in the pipe joint pipe and a sealing piece arranged in the installation pipe; the utility model discloses design according to current demand, when the trachea was installed in the coupling, make the trachea press down the case and can realize opening of fluidic, install spacing pipe and can extrude the extension strip and paste tight trachea and fix the trachea, the fluid of being convenient for passes through the stable inflow trachea of coupling in, convenient and stable to tracheal fixed, prevents that the mistake from bumping to connect and leading to the trachea to drop.

Description

Pneumatic stop pipe joint

Technical Field

The utility model relates to a coupling technical field specifically is a pneumatic stop tube connects.

Background

The stop pipe joint is a common element on pneumatic automation equipment, and is a valve type basic element for controlling the cut-off or opening of fluid, and usually, a stop valve needs to be matched with the pipe joint and connected with a pipeline.

The hose joint with the stopping function disclosed in the publication No. CN 205781583U is designed to have the functions of communication and stopping at the same time, and the inner end of the valve rod can open and close the axial through hole in the valve body along with the axial reciprocating movement of the valve rod, so that the stopping function is achieved, but the hose joint is not convenient for connecting and fixing a pipeline, and a gas pipe is easy to fall off when gas in the pipeline flows;

when the air pipe in the quick-insertion type pneumatic pipe joint disclosed by the publication number CN 212251640U is connected, although the air pipe can be quickly connected and fixed, after the quick-insertion type pneumatic pipe joint is used for a long time, the fixity of parts can be weakened, and the air pipe can be released from being fixed due to the fact that the pipe sleeve is mistakenly touched and withdrawn during use, so that the quick-insertion type pneumatic pipe joint is inconvenient to use and needs to be improved.

In view of the above problems, a pneumatic shut-off fitting has been proposed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pneumatic stop tube connects to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a pneumatic stop pipe joint comprises a pipe joint pipe and an air pipe, wherein the pipe joint pipe comprises a connecting pipe, a joint pipe and a mounting pipe, the connecting pipe is provided with a thread for connecting a pipeline, and the pneumatic stop pipe joint also comprises a pneumatic stop piece and an air pipe fixing piece;

the pneumatic stop piece is arranged in the inner cavity of the pipe joint pipe, is used for controlling the cut-off or opening of fluid and comprises a pneumatic stop valve arranged in the pipe joint pipe and a sealing piece arranged in the installation pipe;

the trachea mounting is installed in the one end that the joint pipe was kept away from to the installation pipe for fixed seal spare and trachea, including the fastener with be used for fixing the fastener fixed mounting in the installation pipe, be connected with on the installation pipe be used for with the fastener cooperation strengthen fixed spacing pipe to the trachea.

Preferably, the pneumatic stop valve comprises an O-shaped ring, a spring and a valve core, the spring is sleeved on the valve core in a sliding mode, one end, close to the connecting pipe, of the inner cavity of the connector pipe is connected with a boss, the valve core penetrates through a hole in the middle of the boss in a sliding mode to be connected with the O-shaped ring, a sealing surface in contact with the O-shaped ring is arranged on one side, close to the connecting pipe, of the boss, and the spring contact boss is far away from one side of the sealing surface.

Preferably, the sealing member includes sealing washer and clamping ring, the one end that the sealing washer is installed and is close to the joint pipe in the installation tube inner chamber, the clamping ring is installed in the one side that the joint pipe was kept away from to the sealing washer, the trachea passes the hole in the middle of sealing washer and the clamping ring.

Preferably, the fastener includes packing ring and extension strip, the packing ring is kept away from one side of clamping ring and is passed through linking ring fixed connection four at least sets of extension strips, it sets up to extend the strip and be annular array, and is adjacent it is equipped with the space to extend between the strip, and extends the strip and be close to the external diameter that links up ring one end and be greater than the external diameter that links up ring one end was kept away from to extend the strip.

Preferably, the mounting includes that the hexagon encircles and solid fixed ring, gu fixed ring fixed connection encircles the one end that is close to the installation pipe in the hexagon, and the hexagon encircles and gu fixed ring cup joints link up the ring outside, the inside screw-thread fit of joint pipe one end is kept away from with the installation pipe to the screw thread on the solid fixed ring outer wall.

Preferably, the inner wall of one end of the limiting pipe close to the installation pipe is provided with an internal thread, the outer wall of the installation pipe is provided with an external thread matched with the internal thread, one end of the limiting pipe inner cavity far away from the installation pipe is provided with a circular truncated cone-shaped clamping groove matched with the extension strip, and the inner diameter of the circular truncated cone-shaped clamping groove close to one end of the installation pipe is larger than the inner diameter of the circular truncated cone-shaped clamping groove far away from one end of the installation pipe.

Preferably, the inner wall of the extension strip is provided with anti-slip threads, and one side of the gasket, which is far away from the connecting ring, is in contact with the sealing element.

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

the utility model discloses well pneumatic stop valve installs at the coupling intraductally, the cooperation of sealing member and mounting is used, the tracheal stability of being convenient for is inserted, prevent the coupling gas leakage simultaneously, the mounting can be fixed the mounting, the sealing member can be pushed down to the mounting, when the trachea is installed in the coupling, make the trachea press down the case and can realize opening of fluid, spacing pipe can extrude to extend the strip and paste tight trachea and fix the trachea in the installation, the fluid of being convenient for is through the stable inflow trachea of coupling, convenient and stable to tracheal fixed, prevent that the mistake from bumping to connect and lead to the trachea to drop.

Drawings

Fig. 1 is a schematic structural view of a pneumatic cutoff pipe joint.

Fig. 2 is a schematic diagram of a disassembled structure of a pneumatic stop pipe joint.

Fig. 3 is a schematic structural diagram of a fastening member and a fixing member in a pneumatic stop pipe joint.

Fig. 4 is a schematic structural view of a pneumatic stop pipe joint in which a limiting pipe is detached from a pipe joint pipe.

Fig. 5 is a schematic sectional view of a limiting pipe in a pneumatic stop pipe joint.

Fig. 6 is a schematic view of the internal structure of a pneumatic shut-off fitting.

In the figure: 11-joining pipe, 12-joint pipe, 13-installation pipe, 14-O-shaped ring, 15-spring, 16-valve core, 17-sealing ring, 18-pressing ring, 19-fastening piece, 20-fixing piece, 21-limiting pipe, 22-hexagonal ring, 23-fixing ring, 24-gasket, 25-extension bar and 26-air pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, in an embodiment of the present invention, a pneumatic stop pipe joint includes a pipe joint pipe and an air pipe 26, the pipe joint pipe includes a connection pipe 11, a joint pipe 12 and a mounting pipe 13, the connection pipe 11 is provided with a thread for connecting a pipeline, and further includes a pneumatic stop piece and an air pipe fixing piece;

the pneumatic stop piece is arranged in the inner cavity of the pipe joint pipe and used for controlling the fluid to be cut off or opened, and comprises a pneumatic stop valve arranged in the joint pipe 12 and a sealing piece arranged in the installation pipe 13;

the trachea fixing piece is installed at one end, far away from the joint pipe 12, of the installation pipe 13 and used for fixing the sealing piece and the trachea, comprises a buckling piece 19 and a fixing piece 20 used for fixing the buckling piece 19 in the installation pipe 13, and the installation pipe 13 is connected with a limiting pipe 21 used for being matched with the buckling piece 19 to strengthen and fix the trachea 26.

The pneumatic stop valve comprises an O-shaped ring 14, a spring 15 and a valve core 16, wherein the spring 15 is sleeved on the valve core 16 in a sliding manner, one end, close to the connecting pipe 11, of the inner cavity of the connector pipe 12 is connected with a boss, the valve core 16 penetrates through a hole in the middle of the boss in a sliding manner to be connected with the O-shaped ring 14, a sealing surface which is in contact with the O-shaped ring 14 is arranged on one side, close to the connecting pipe 11, of the boss, and the spring 15 is in contact with one side, far away from the sealing surface, of the boss; the valve core 16 is pressed by the air pipe 26 to press the spring 15, and the O-ring 14 is separated from the sealing surface, so that the fluid in the adapter pipe 11 can enter the air pipe 26 through the valve core 16.

The sealing member includes sealing washer 17 and clamping ring 18, sealing washer 17 is installed and is being close to the one end of adapter tube 12 in installation pipe 13 inner chamber, clamping ring 18 is installed and is being kept away from the one side of adapter tube 12 in sealing washer 17, trachea 26 passes the hole in the middle of sealing washer 17 and clamping ring 18.

The fastening piece 19 comprises a gasket 24 and extension strips 25, one side of the gasket 24, which is far away from the compression ring 18, is fixedly connected with at least four groups of extension strips 25 through a connecting ring, the extension strips 25 are arranged in an annular array, a gap is arranged between every two adjacent extension strips 25, the outer diameter of one end, which is close to the connecting ring, of each extension strip 25 is larger than that of one end, which is far away from the connecting ring, of each extension strip 25, and one side, which is far away from the connecting ring, of the gasket 24 is in contact with a sealing element;

the fixing piece 20 comprises a hexagonal ring 22 and a fixing ring 23, the fixing ring 23 is fixedly connected to one end, close to the mounting pipe 13, of the hexagonal ring 22, the hexagonal ring 22 and the fixing ring 23 are sleeved on the outer side of the connecting ring, and threads on the outer wall of the fixing ring 23 are matched with threads inside one end, far away from the joint pipe 12, of the mounting pipe 13; after the sealing ring 17, the pressing ring 18 and the fastening piece 19 are installed in the installation pipe 13, the fixing piece 20 can be installed, and the fixing ring 23 is in threaded connection with the inner wall of the installation pipe 13 to fix the positions of the sealing ring 17, the pressing ring 18 and the fastening piece 19.

An inner thread is arranged on the inner wall of one end, close to the mounting pipe 13, of the limiting pipe 21, an outer thread matched with the inner thread is arranged on the outer wall of the mounting pipe 13, a truncated cone-shaped clamping groove matched with the extension strip 25 is arranged at one end, far away from the mounting pipe 13, of the inner cavity of the limiting pipe 21, and the inner diameter of one end, close to the mounting pipe 13, of the truncated cone-shaped clamping groove is larger than that of one end, far away from the mounting pipe 13, of the truncated cone-shaped clamping groove; the inner wall of the extension strip 25 is provided with anti-skid grains; trachea 26 inserts the back, can connect spacing pipe 21 on installation pipe 13, and the extension strip 25 is passed in round platform shape joint groove, rotates spacing pipe 21 and makes round platform shape joint groove contact gradually and extend the strip 25 after, can extrude the extension strip and paste tight trachea 26 and extrude trachea 26 fixed, and the fluid of being convenient for passes through the stable inflow trachea 26 of coupling in, convenient and stable to trachea 26's fixed, prevents that the mistake from bumping and connects and lead to trachea 26 to drop.

The utility model discloses a theory of operation is: when using this kind of pneumatic stop tube coupling, trachea 26 inserts the intraductal back of coupling, thereby case 16 receives trachea 26 to press and can extrude spring 15, O type circle 14 can leave sealed face, make the interior fluid of adapter pipe 11 can get into trachea 26 through case 16 in, spacing pipe 21 is connected on installation pipe 13, rotate spacing pipe 21 and make the contact gradually of round platform shape joint groove extend the strip 25 after, can extrude and extend the strip and paste tight trachea 26 and extrude fixing trachea 26, fluid passes through the coupling and stably carries to trachea 26 in, take out trachea 26 after, case 16 can receive the power of spring 15 to make O type circle 14 contact sealed face, the intraductal fluid of coupling cuts off.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention.

Claims

1. The utility model provides a pneumatic stop tube connects, includes coupling pipe and trachea (26), the coupling pipe includes linking pipe (11), adapter tube (12) and installation pipe (13), be equipped with the screw thread that is used for connecting the pipeline on linking pipe (11), its characterized in that: the pneumatic cut-off device also comprises a pneumatic cut-off piece and an air pipe fixing piece;

the pneumatic stop piece is arranged in the inner cavity of the pipe joint pipe and used for controlling the fluid to be cut off or opened, and comprises a pneumatic stop valve arranged in the joint pipe (12) and a sealing piece arranged in the installation pipe (13);

trachea mounting installs the one end of keeping away from joint pipe (12) in installation pipe (13) for fixed sealing member and trachea, including fastener (19) and be used for fixing fastener (19) mounting (20) in installation pipe (13), be connected with on installation pipe (13) and be used for strengthening fixed spacing pipe (21) to trachea (26) with fastener (19) cooperation.

2. A pneumatic shut-off fitting as defined in claim 1, wherein: pneumatic stop valve includes O type circle (14), spring (15) and case (16), spring (15) slip cup joints on case (16), the one end that adapter tube (12) inner chamber is close to linking pipe (11) is connected with the boss, hole connection O type circle (14) in the middle of the boss are passed in case (16) slip, one side that the boss is close to linking pipe (11) is equipped with the sealed face of contacting with O type circle (14), one side that sealed face was kept away from to spring (15) contact boss.

3. A pneumatic shut-off fitting as defined in claim 1, wherein: the sealing member includes sealing washer (17) and clamping ring (18), the one end that is close to joint pipe (12) in installation pipe (13) inner chamber is installed in sealing washer (17), one side of keeping away from joint pipe (12) in sealing washer (17) is installed in clamping ring (18), hole in the middle of sealing washer (17) and clamping ring (18) is passed in trachea (26).

4. A pneumatic shut-off fitting as defined in claim 1, wherein: fastener (19) are including packing ring (24) and extension strip (25), one side that clamping ring (18) were kept away from in packing ring (24) is through linking ring fixed connection four at least sets of extension strips (25), it sets up to extend strip (25) to be annular array, and is adjacent extend and be equipped with the space between strip (25), and extend strip (25) and be close to the external diameter that links up ring one end and be greater than extension strip (25) and keep away from the external diameter that links up ring one end.

5. A pneumatic shut-off fitting according to claim 4, wherein: the fixing piece (20) comprises a hexagonal ring (22) and a fixing ring (23), the fixing ring (23) is fixedly connected to one end, close to the installation pipe (13), of the hexagonal ring (22), the hexagonal ring (22) and the fixing ring (23) are sleeved on the outer side of the connecting ring, and threads on the outer wall of the fixing ring (23) are matched with threads on the installation pipe (13) in a mode that the threads are far away from the interior of one end of the joint pipe (12).

6. A pneumatic shut-off fitting according to claim 5, wherein: spacing pipe (21) are close to the one end inner wall of installation pipe (13) and are equipped with the internal thread, installation pipe (13) outer wall be equipped with interior screw-thread fit's external screw thread, the one end that installation pipe (13) were kept away from to spacing pipe (21) inner chamber is equipped with and extends strip (25) complex round platform shape joint groove, the internal diameter that round platform shape joint groove is close to installation pipe (13) one end is greater than the internal diameter that installation pipe (13) one end was kept away from in round platform shape joint groove.

7. A pneumatic shut-off fitting according to claim 4, wherein: the inner wall of the extension strip (25) is provided with anti-slip threads, and one side, far away from the connecting ring, of the gasket (24) is in contact with the sealing element.