CN113167419B - Connecting fittings for size adjustment of pipe joints - Google Patents

Abstract

A connection fitting for size adjustment of a pipe joint capable of connecting a male joint member and a female joint member having mismatched dimensions is provided. The connection fitting has a cylindrical body (44) with a cylindrical male portion (40) at one end and a female portion (42) at the other end for receiving a male joint member (12) that does not match the aforementioned dimensions ); and a sleeve (50) capable of sliding on the outer peripheral surface of the cylindrical body. The female part is fitted into the male joint member whose size does not match, the sleeve (50) is turned into a locked position, and the locking part (46) is engaged and fixed with the male joint member whose size does not match, And the male part is fitted and connected to the female pipe joint member.

Description

Connecting fittings for size adjustment of pipe joints

technical field

The present invention relates to a connection fitting for size adjustment of a pipe joint which can be connected to a pipe joint including a male joint member and a female joint member which are fitted and connected to each other. A male joint member of a different size from the male joint member is coupled to the female joint member.

Background technique

For example, in a certain fluid supply piping system, there is a supply piping in which the fluid supply is performed in a state where the (fluid discharge) nozzle of the fluid supply pipe is fitted and connected to the container serving as the fluid receiving port on the side receiving the fluid supply. system. In this case, the nozzle and the container constitute the pipe joint of the above-mentioned form, but in this case, the nozzle and the container, which are joint members to be fitted together, have a size (diameter size) suitable for mutual fitting. If the size of the container on the supply side does not match the size of the nozzle on the supply side, fluid supply cannot be performed. However, there is also a case where the side receiving the fluid supply has a container of a different size that is not suitable for the nozzle on the supply side. As a method that can also supply the fluid in such a case, it is conceivable to use a container with a nozzle of a regular size. In addition to the fluid supply tube, a fluid supply tube for a nozzle of a size suitable for the above-mentioned containers of different sizes is prepared. However, in such a method, the equipment cost and maintenance cost of the supply piping system become high.

As another method, there is a method of using a connection fitting (adapter) for size adjustment for matching with the above-mentioned different sizes of the container. For example, Patent Document 1 discloses such a connection fitting. However, in this connection fitting, components for constituting the connection fitting are assembled to the supply-side nozzle to be threadedly fixed, and fast attachment and detachment cannot be performed.

prior art literature

patent documents

Patent Document 1: Japanese Patent Application Publication No. 6-14673

Contents of the invention

The problem to be solved by the invention

The present invention considers the problems described above, and an object of the present invention is to provide a connection for size adjustment of a pipe joint that can be quickly completed when a pipe joint member such as a container of a different size is connected to another pipe joint member such as a nozzle. Accessories.

Solution to the problem

That is, in the present invention, there is provided a connection fitting for size adjustment of a pipe joint, in a pipe joint including a male joint member and a female joint member which are fitted and connected to each other, the connection fitting for size adjustment of the pipe joint A male joint member having a different size with respect to the male joint member can be connected to the female joint member, wherein the connection fitting for size adjustment of the pipe joint has a cylindrical main body having a cylindrical male joint at one end. There is a cylindrical female part at the other end, the male part is formed in a shape capable of being received by the female joint member of the pipe joint, and the female part is formed to receive a size relative to the pipe joint. The male joint member that the female joint member fits has the shape of a male joint member of a different size, and the cylindrical main body has a hole for an upper lock that penetrates through the radial direction of the cylindrical main body. a hole for the lock piece to hold the upper lock piece displaceable in the radial direction; and a sleeve capable of sliding on the outer peripheral surface of the cylindrical body in the direction of the length axis of the cylindrical body, and the sleeve can be moved on the upper Displacement between the locked position and the unlocked position. In the locked position, the sleeve is engaged with the locking piece from the outside in the radial direction so that the locking piece and the male joint member of different sizes inserted into the female portion The position where the male joint members of different sizes are engaged and prevented from being displaced from the female part to the outside, and the unlocked position is that the sleeve is displaced to the one end side compared with the locked position so that the locking part can move toward the radius A position that is displaced outwardly in the direction and enables outward displacement of the differently sized male joint member from within the female portion.

In the connection fitting for size adjustment, the sleeve in the locked position may be engaged with the female joint member connected to the male portion to be prevented from being displaced to the unlocked position. In a state where the female joint member is not detached from the female portion, the male joint member of a different size fitted to the female portion is not detached.

In addition, in the connection fitting for size adjustment, it may be provided with a cylindrical grip portion attached to the cylindrical main body so that the radially outer position of the cylindrical male portion is concentrically aligned with the cylindrical grip portion. The longitudinal axis extends and is grippable by a user of the fitting for size adjustment of the pipe joint. When handling the sleeve, the sleeve can be easily manipulated by holding the cylindrical grip.

In this case, the cylindrical holding portion may have a slit extending in the longitudinal axis direction and penetrating in the radial direction, and the sleeve may have a catch extending from the sleeve to the inner side of the slit in the radial direction. A stop member is engaged with the male joint member connected to the female part to prevent the sleeve from being displaced to the unlocked position.

In the connection fitting for size adjustment described above, the cylindrical main body has a hole for a sleeve holder, and the hole for a sleeve holder is located on the one end side of the cylindrical main body closer to the hole for the locking member along the radially through, and hold the sleeve holder to be displaceable in the radial direction, when the sleeve is in the unlocked position and the male joint members of different sizes are not fitted into the cylindrical female When inside the molded part, the sleeve retainer partially protrudes to the outside of the cylindrical main body, and the sleeve retainer prevents the sleeve from being displaced to the locked position.

Specifically, it may be possible to have a sleeve holder engaging member provided in the cylindrical main body, engage with the sleeve holder from the inner side in the radial direction, and be capable of preventing displacement. Displacement between the position and the displacement allowing position, the displacement preventing position is that the sleeve holder engaging member makes the sleeve holder partially protrude to the outside of the cylindrical body to prevent the sleeve in the unlocked position from moving upward. The position where the lock position is displaced, the displacement allowing position is that the engaging member of the sleeve holder is pushed in from the displacement preventing position to the direction of the one end and the sleeve holder is displaced radially inward to allow the sleeve to move toward the end. The position where the locked position is displaced.

In this case, there may be: a first biasing member that biases the sleeve holder engaging member from the displacement allowing position toward the displacement preventing position; and a second biasing member that biases the sleeve holder. The barrel exerts a force from the unlocked position towards the locked position. In this way, when male joint members of different sizes are inserted and fitted into the female part, the sleeve retaining engagement member can be displaced from the displacement preventing position to the edge allowing position, so that the sleeve can pass through. The second urging member is automatically displaced from the unlocked position to the locked position.

Hereinafter, embodiments of the connection fitting for dimension adjustment of the pipe joint according to the present invention will be described based on the drawings.

Description of drawings

Fig. 1 is a connection fitting for size adjustment according to the present invention, a female joint member of a pipe joint using the connection fitting for size adjustment, and a connection with the female joint member using the connection fitting for size adjustment. The male joint member of the joint is shown in the positional relationship before connecting the male joint members of different sizes, and the connection fitting for size adjustment, the female joint member and the male joint members of different sizes are shown in longitudinal section. Type connector components.

Fig. 2 is a diagram showing that the connection fitting for size adjustment is fitted and connected to the male joint member of different size as an initial step when the male joint member of different size is connected to the female joint member. Longitudinal sectional view of the state after.

Fig. 3 is a longitudinal sectional view showing a state in which the male joint member of a different size is connected to the female joint member in the state shown in Fig. The state in which fluid pressure is applied.

Fig. 4 is a longitudinal sectional view similar to Fig. 3 , but showing a state in which a fluid is flowing in the pipeline and a fluid pressure is applied thereto.

detailed description

In FIG. 1 , a connection fitting 14 for size adjustment is shown, and the connection fitting 14 for size adjustment is used to connect a container (male joint member) of a predetermined size on the fluid receiving side (not shown) A nozzle (female joint member: only the front end is shown in the figure) 10 on the fluid supply source side is connected to a container (male joint member: only the front end is shown in the figure) 12 having a size different from the predetermined size.

The nozzle 10 has: a nozzle main body 22 having a fluid passage 20; a valve 24; and a cylindrical valve support member 26 fixed to the nozzle main body 22 and supporting the valve 24 so as to be displaceable in the longitudinal axis direction of the fluid passage 20. The collet member 28; the cylindrical collet support member 30, which is fixed to the outer peripheral surface of the valve support member 26, extends forward (to the right of the drawing), and supports the collet member 28 as Displaceable between the receiving position shown in FIG. 1 and the tightening position shown in FIGS. 3 and 4 ; the collet inhibiting sleeve 32 is movable in a collet releasing position allowing the collet member 28 to be in the receiving position Displacement along the length axis direction of the fluid passage 20 between the clamp pressing position where the elastic chuck member 28 is pressed in the fastening position; the sleeve locking member 34 is displaceably installed on and from the The fluid passage 20 of the nozzle main body 22 enters the through-hole 33 extending in the radial direction, and when the fluid pressure in the fluid passage 20 increases, it moves radially outward and engages with the chuck restraining sleeve 32 to become in the radial direction. The sleeve locking position (FIG. 4) in which the chuck pressing position is locked; the chuck operating member 36 is fixed to the valve 24 and can be engaged with the elastic chuck member 28 from the radially inner side to make it elastically The chuck member 28 is displaced between an advanced position where it becomes a receiving position ( FIG. 1 ) and a retracted position where it is displaced rearward (leftward in the drawing) together with the valve 24 to allow the collet member 28 to be a tightening position.

When the container of the above-mentioned unillustrated predetermined size or the male portion 40 described later of the connection fitting 14 for size adjustment is inserted into the nozzle 10, the valve 24 and the chuck operating member 36 are changed from FIG. The position of the collet is pushed backward, the elastic collet member 28 becomes a fastened position and engages with the inserted container or the male part 40, and the radial direction passage 24a of the valve 24 is opened to allow fluid to pass through the axis of the valve 24 The direction passage 24b flows, thereby opening the fluid passage 20 of the nozzle 10 ( FIG. 3 , FIG. 4 ).

The container 12 has a larger size than the size suitable for coupling with the nozzle 10 , and the connection fitting 14 for size adjustment can connect the container 12 of the different size to the nozzle 10 . That is, the size adjustment connecting fitting 14 has a cylindrical main body 44 having a cylindrical male portion 40 at one end (left end in the figure) and a cylindrical female portion at the other end (right end in the figure). 42, the male part 40 is formed into a shape that can be received by the nozzle 10, the female part 42 is formed into a shape that receives the above-mentioned containers 12 of different sizes, and the cylindrical body 44 has a The hole 48 for the locking member provided in a manner penetrating in the radial direction, the hole 48 for the locking member holds the locking member 46 displaceable in the radial direction; The surface slides along the length axis direction of the cylindrical main body 44, and can be displaced between the locked position (Fig. 2-4) and the unlocked position (Fig. 1). The outer side is engaged with the locking part 46 so that the locking part 46 is engaged with the container 12 of different size inserted into the female part 42 and prevents the container 12 from being displaced from the female part 42 to the outside, The unlocked position is that the sleeve 50 is displaced to the one end side (the left end side in the figure) compared with the locked position so that the locking member 46 can be displaced radially outward and the container 12 can be moved from the female The position where the part 42 is displaced outwards. In the figure, 40a denotes a locking recess for receiving the collet member 28 at the fastening position, and 12a denotes a locking portion for receiving the locking member 46 pressed radially inward by the sleeve 50 at the locking position. recessed part.

The connecting fitting 14 for size adjustment also has a cylindrical holding portion 52 which is mounted on the cylindrical main body 44 and extends concentrically along the longitudinal axis direction at the outer position in the radial direction of the male portion 40 , and can It is held by the user of the size adjustment connection fitting 14 . The cylindrical holding portion 52 has a slit 53 extending radially through the cylindrical holding portion 52 and extending in the direction of the longitudinal axis. The slit 53 substantially reaches the elongated locking member 56 on the outer surface of the male portion 40. When the sleeve 50 is displaced between the locked position and the unlocked position, the locking member 56 moves along the slit 53. displacement. In the illustrated example, when the sleeve 50 is in the locked position shown in FIGS. 2 to 4 , it abuts against the radial direction surface 44b of the cylindrical body 44 facing the nozzle 10 .

The cylindrical body 44 also has a hole 57 for a socket holder, which is located on the one end side (the left end side in the drawing) of the cylindrical body 44 closer to the locking hole 48 than the locking hole 48 . It is provided so as to penetrate in the radial direction, and holds the sleeve holder 54 displaceable in the radial direction. When the sleeve 50 is in the unlocked position and the container 12 is not received in the female portion 42 ( FIG. 1 ), the sleeve holder 54 partially protrudes to the outside of the cylindrical main body 44 and is in contact with the The locking recess 50a provided on the inner peripheral surface of the sleeve 50 engages and prevents the sleeve 50 from being displaced to the locked position ( FIGS. 2 to 4 ). In the illustrated example, a sleeve holder engaging member 58 is provided inside the cylindrical body 44, and the sleeve holder engaging member 58 engages with the sleeve holder 54 from the inner side in the radial direction and can be Displacement between the displacement preventing position and the displacement allowing position, the displacement preventing position is that the sleeve holder engaging member 58 partially protrudes the sleeve holder 54 to the outside of the cylindrical main body 44 to prevent the sleeve holder 54 in the unlocked position. The position where the sleeve 50 is displaced to the locked position, the displacement allowing position is that the sleeve holder engaging member 58 is pushed in from the displacement preventing position (to the left when viewed in the figure) and the sleeve holder is 54 is displaced radially inward to allow displacement of the sleeve 50 to the locked position ( FIGS. 2 to 4 ). The sleeve holder engaging member 58 has an axial direction fluid passage 58 a communicating with the axial direction fluid passage 44 a provided in the cylindrical main body 44 .

In the illustrated example, the size adjustment connecting fitting 14 is provided with an urging member (screw urging member) that urges the sleeve 50 from the unlocked position shown in FIG. 1 toward the locked position shown in FIGS. 2 to 4 . spring) 60, and a biasing member (coil spring) 62 that biases the sleeve holder engaging member 58 from the displacement permitting position shown in FIGS. 2 to 4 toward the displacement preventing position shown in FIG. The nozzle 10 is provided with an urging member (coil spring) 64 for urging the chuck restraining sleeve 32 from the chuck releasing position shown in FIG. 1 to the chuck pressing position shown in FIGS. The chuck operating member 36 is an urging member (coil spring) 66 that urges from the retracted position shown in FIGS. 3 to 4 toward the advanced position shown in FIG. 1 .

When using the size adjustment connection fitting 14 to connect the container 12 of a different size to the nozzle 10, the user of the size adjustment connection fitting 14 first holds the cylindrical grip 52 and the cylindrical main body 44 The female portion 42 is fitted with the container 12 (FIG. 2). As a result, the sleeve holder engaging member 58 is pushed into the displacement allowable position shown in FIGS. 2 to 4 and the sleeve 50 becomes the locked position shown in FIGS. This size adjustment is connected with the connection fitting 14 (FIG. 2). Next, the male portion 40 of the connection fitting 14 for size adjustment is fitted into the nozzle 10 . As a result, the valve 24 of the nozzle 10 is pushed into the retracted position, the chuck operating member 36 becomes the retracted position shown in FIGS. The collet pressing position, and the elastic collet member 28 is in the tightening position, so that the connecting fitting 14 for size adjustment and the nozzle 10 are connected. In this state, when the valve on the side of the fluid supply source (not shown) is opened, the fluid flows to the side of the container 12 via the nozzle 10 and the connection fitting 14 for size adjustment. As a result, the sleeve locking member 34 becomes the sleeve locking position shown in FIG. 4 under the action of fluid pressure, and engages with the collet restraining sleeve 32 to prevent the collet restraining sleeve 32 from closing in the position shown in FIG. 4 . Moves to the left when viewed in the middle and becomes the collet release position (Figure 4). In addition, in this state, the front end portion (right end portion as viewed in the figure) 30 a of the chuck support member 30 is engaged with the locking member 56 extending from the sleeve 50 of the size adjustment connection fitting 14 . , in the state where the fluid from the fluid supply source side flows, the chuck inhibiting sleeve 32 is held in the chuck suppressing position shown in FIG. displacement.

When detaching the container 12 from the connected nozzle 10, first, a valve (not shown) on the fluid supply source side is closed to stop the fluid supply. As a result, the sleeve locking member 34 can be displaced radially inward, so that the chuck inhibiting sleeve 32 is moved from the chuck pressing position shown in FIG. 4 to the chuck releasing position shown in FIG. It is removed from the connection fitting 14 for size adjustment. Next, the sleeve 50 of the connection fitting 14 for size adjustment is brought into the unlocked position shown in FIG. 1 , and the connection fitting 14 for size adjustment is detached from the container 12 .

One embodiment of the connection fitting 14 for dimension adjustment of the pipe joint of the present invention is as described above, but the present invention is not limited thereto. For example, the sleeve holder 54 is used to automatically bring the sleeve 50 to the locked position and the locking member 46 to the locked position when the size adjustment connecting fitting 14 is fitted into the container 12, thereby turning the size adjustment to the locked position. The connection fitting 14 is automatically connected to the container 12, but the operation of the sleeve 50 can also be performed manually, so the sleeve holder 54 is not essential. In addition, the cylindrical grip portion 52 is used to facilitate handling of the connection fitting 14 for size adjustment, and it is also not essential. The present invention takes the content specified in Claim 1 as the basic structure, and various modifications are possible.

Explanation of reference signs:

Nozzle (female joint member) 10

Containers of different sizes (male fittings) 12

Connection accessories for size adjustment 14

Fluid Path 20

Nozzle body 22

valve 24

Radial access 24a

Axial direction passage 24b

Valve support member 26

Collet member 28

Collet support member 30

Collet restraint sleeve 32

Socket locking member 34

Collet operating member 36

dick 40

Pussy 42

Cylindrical body 44

Axial direction fluid passage 44a

Radius face 44b

lock 46

Hole for lock 48

Socket 50

Locking recess 50a

Cylindrical grip 52

Slit 53

Socket holder 54

Locking member 56

Hole for socket holder 57

Sleeve holder engaging member 58

Axial direction fluid passage 58a

Urging members (coil springs) 60, 62, 64, 66.

Claims (8)

1. A connection fitting for size adjustment of a pipe joint, which can be used to connect a male joint member of a different size to the male joint member in a pipe joint including a male joint member and a female joint member that are fitted and connected to each other. A joint member is coupled to the female joint member, wherein, The connecting fitting for size adjustment of the pipe joint has: A cylindrical body having a cylindrical male portion at one end and a cylindrical female portion at the other end, the male portion being formed in a shape capable of being received by a female joint member of a pipe joint, the female The portion is formed in a shape to receive a male joint member of a different size from a male joint member fitted with the female joint member of the pipe joint, and the cylindrical main body has a A hole for the locking part arranged in a manner, and the hole for the locking part keeps the locking part displaceable in the radial direction; and a sleeve, which can slide along the length axis direction of the cylindrical body on the outer peripheral surface of the cylindrical body, and the sleeve can be displaced between a locked position and an unlocked position, the locked position is when the sleeve is moved from The outer side in the radial direction engages with the locking piece so that the locking piece engages with the male connector components of different sizes inserted into the female part and prevents the male connector members of different sizes from going from the female part to the outside Displacement position, the unlocking position is that the sleeve is displaced to the one end side compared with the locking position so that the locking part can be displaced radially outward and the male joint components of different sizes can be moved from the female The position of the internal and external displacement, The sleeve in the locked position engages with the female joint component connected to the male part to be prevented from being displaced to the unlocked position. 2. The connection fitting for dimension adjustment of a pipe joint according to claim 1, wherein: The connecting fitting for size adjustment of the pipe joint has a cylindrical grip part, which is installed on the cylindrical body and extends concentrically along the longitudinal axis direction at a radially outer position of the male part, and can It is held by the user of the fitting for size adjustment of the pipe joint. 3. The connection fitting for dimension adjustment of a pipe joint according to claim 2, wherein: The cylindrical grip part has a slit penetrating in the radial direction and extending in the direction of the longitudinal axis, The sleeve has a locking member extending from the sleeve to a radially inner side of the slit, The locking member is engaged with the female joint member connected to the male portion to prevent the sleeve from being displaced to the unlocked position. 4. The connection fitting for dimension adjustment of a pipe joint according to claim 1, wherein: The cylindrical main body has a hole for a sleeve holder, and the hole for the sleeve holder is provided so as to penetrate in the radial direction on the one end side of the hole for the locking member, and holds the sleeve holder so as to be able to hold the sleeve holder. Displacement in the radial direction, When the sleeve is in the unlocked position and the differently sized male joint member is not received within the cylindrical female portion, the sleeve retainer partially protrudes outwardly of the cylindrical body, thereby preventing the sleeve The barrel is displaced toward the locked position. 5. The connection fitting for dimension adjustment of a pipe joint according to claim 4, wherein: The coupling fitting for size adjustment of the pipe joint has a sleeve holder engaging member provided in the cylindrical main body and engaged with the sleeve holder from the inner side in the radial direction, and capable of Displaced between a displacement preventing position and a displacement allowing position, the displacement preventing position is that the sleeve holder engaging member partially protrudes the sleeve holder to the outside of the cylindrical body to block the sleeve in the unlocked position A position displaced to the locked position, the displacement allowing position is that the engaging member of the sleeve holder is pushed in from the displacement preventing position toward the one end and the sleeve holder is displaced radially inward to allow the sleeve The position where the barrel is displaced toward the locked position. 6. The connection fitting for dimension adjustment of a pipe joint according to claim 5, wherein: The connection fitting for size adjustment of the pipe joint has: a first urging member that urges the sleeve holder engaging member from the displacement allowing position toward the displacement preventing position; The sleeve exerts force from the unlocked position toward the locked position. 7. A connection fitting for size adjustment of a pipe joint, which can be used to connect a male joint member of a different size to the male joint member in a pipe joint including a male joint member and a female joint member that are fitted and connected to each other. A joint member is coupled to the female joint member, wherein, The connecting fitting for size adjustment of the pipe joint has: A cylindrical body having a cylindrical male portion at one end and a cylindrical female portion at the other end, the male portion being formed in a shape capable of being received by a female joint member of a pipe joint, the female The portion is formed in a shape to receive a male joint member of a different size from a male joint member fitted with the female joint member of the pipe joint, and the cylindrical main body has a A hole for the locking part arranged in a manner, and the hole for the locking part keeps the locking part displaceable in the radial direction; and a sleeve, which can slide along the length axis direction of the cylindrical body on the outer peripheral surface of the cylindrical body, and the sleeve can be displaced between a locked position and an unlocked position, the locked position is when the sleeve is moved from The outer side in the radial direction engages with the locking piece so that the locking piece engages with the male connector components of different sizes inserted into the female part and prevents the male connector members of different sizes from going from the female part to the outside Displacement position, the unlocking position is that the sleeve is displaced to the one end side compared with the locking position so that the locking part can be displaced radially outward and the male joint components of different sizes can be moved from the female The position of the internal to external displacement, The connecting fitting for size adjustment of the pipe joint has a cylindrical grip part, which is installed on the cylindrical body and extends concentrically along the longitudinal axis direction at a radially outer position of the male part, and can It is held by the user of the fitting for size adjustment of the pipe joint. 8. The connection fitting for dimension adjustment of a pipe joint according to claim 7, wherein: The cylindrical grip part has a slit penetrating in the radial direction and extending in the longitudinal axis direction, The sleeve has a locking member extending from the sleeve to a radially inner side of the slit, The locking member is engaged with the female joint member connected to the male portion to prevent the sleeve from being displaced to the unlocked position.

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