Regulating valve

Abstract

The utility model discloses a regulating valve. The regulating valve comprises a valve body, a flow regulating part and a locking device, the valve body is provided with an input end, an output end and a detection end. The input end is communicated with one end of an input channel in the valve body, and the other end of the input channel is communicated with the valve cavity; the output end is communicated with the valve cavity; the detection end is positioned between the input end and the output end and is communicated with the input channel; one end of the flow regulating part is inserted into the valve cavity, and the other end of the flow regulating part extends out of the valve body; the locking device is arranged at the output end and comprises a connector, a locking sleeve piece and a locking piece. One end of the connector is connected to the output end and the detection end, and the other end of the connector is provided with a locking sleeve piece and a locking piece. The locking performance of the connector and the locking piece is achieved through the locking sleeve piece; the locking sleeve piece is fixed through the locking piece, and therefore the situation that due to long-time use, the locking sleeve piece loses efficacy due to looseness of the locking piece, and use of the valve body is affected is avoided.

Description

Technical Field

[0001] The present application relates to a regulating valve, and belongs to the technical field of flow regulating valves. Background Art

[0002] When the output end of the regulating valve is connected to the downstream connecting pipe, a sealing ring is arranged between the output end of the regulating valve and the downstream connecting pipe to seal the connection; it is generally fixed by a fastening nut or a pipe clamp. After long-term use, this connection method may loosen the fastening nut, causing the entire connection part to loosen, resulting in a gap between the sealing ring and the regulating valve and the downstream connecting pipe, thereby causing the sealing performance to be lost, resulting in leakage at the connection between the regulating valve and the downstream connecting pipe. Utility Model Content

[0003] In view of this, the present application provides a regulating valve to solve the problem in the prior art that the fastening nut becomes loose after long-term use, resulting in the loss of sealing performance at the connection between the regulating valve and the downstream joint / connecting pipe, thereby affecting normal use. The specific solution is:

[0004] A regulating valve, comprising:

[0005] The valve body is respectively provided with an input end, an output end and a detection end, and the valve body is provided with an input channel and a valve cavity;

[0006] The input channel is arranged along the extension direction of the valve body;

[0007] The input end and the valve cavity are respectively communicated with two ends of the input channel;

[0008] The output end is in communication with the valve chamber;

[0009] The detection end is in communication with the input channel;

[0010] A flow regulating member is arranged on a side of the valve cavity away from the input channel, one end of the flow regulating member passes through the valve body and is inserted into the valve cavity, and the other end of the flow regulating member extends out of the valve body, and the flow regulating member is connected to the valve cavity;

[0011] A locking device, arranged at the output end, comprising: a connector, a locking kit and a locking member;

[0012] One end of the connector is connected to the output end;

[0013] One end of the locking sleeve is inserted into an end of the connector away from the output end, and the other end of the locking sleeve extends out of the connector;

[0014] One end of the locking kit extending out of the joint is inserted into the locking piece;

[0015] The locking piece is threadedly connected to the joint, and the locking piece presses against an end of the locking assembly extending out of the joint.

[0016] Preferably, the locking kit comprises a first locking sleeve and a second locking sleeve;

[0017] The second locking sleeve is sleeved outside the first locking sleeve, one end of the second locking sleeve is inserted into the end of the connector facing away from the output end, and the other end of the second locking sleeve is inserted into the locking member;

[0018] One end of the first locking sleeve away from the locking member extends outward from the locking member and extends outward along the circumferential side;

[0019] The outwardly extending portion of the first locking sleeve abuts against the inner wall of the joint and the end of the second locking sleeve respectively.

[0020] Preferably, both the first locking sleeve and the second locking sleeve are elastic components.

[0021] Preferably, the overall profile of the second locking sleeve is in the shape of a convex letter;

[0022] The end with a larger cross-section is inserted into the locking piece, and the end with a smaller cross-section is inserted into the joint.

[0023] Preferably, the sum of the length of the end of the second locking sleeve with a smaller cross-section and the thickness of the extended portion of the first locking sleeve is the same as the length of the end of the connector facing away from the valve body.

[0024] Preferably, a plurality of adjustment grooves are evenly formed on the end of the second locking sleeve that is inserted into the locking member and has a larger cross-section;

[0025] The plurality of adjustment grooves are arranged along the circumference of the second locking sleeve, and the adjustment grooves radially penetrate from the inner side to the outer side of the second locking sleeve. The plurality of adjustment grooves divide the end of the locking member with a larger cross-section into a plurality of locking teeth.

[0026] Preferably, the cross section of the adjustment groove is a trapezoidal structure;

[0027] Wherein, the upper bottom of the trapezoidal structure is arranged toward the inner side of the second locking sleeve.

[0028] Preferably, the flow regulating member comprises a valve core and a first locking nut;

[0029] The valve core passes through the valve body and is inserted into the valve cavity;

[0030] The first locking nut is sleeved on the valve core, and the first locking nut is threadedly connected to the valve body.

[0031] Preferably, the output end is provided with an output member;

[0032] The output member includes a sleeve and a delivery pipeline;

[0033] The sleeve is sleeved on a position on the valve body corresponding to the output end and can rotate along the valve body, and the sleeve is provided with an inlet connected to the output end;

[0034] One end of the delivery pipeline is communicated with the inlet, and the other end of the delivery pipeline is arranged away from the sleeve.

[0035] Preferably, a protective connecting pipe and a second locking nut are provided at one end of the delivery pipeline facing away from the casing;

[0036] One end of the protective connecting pipe is fixedly connected to the end of the conveying pipeline, and the pipe body of the protective connecting pipe is provided with an external thread;

[0037] The second locking nut is threadedly connected to the external thread;

[0038] One end of the joint facing the valve body is threadedly connected to one end of the protective connecting pipe facing away from the sleeve.

[0039] The beneficial effects of this application include:

[0040] The present application provides a locking device at the output end of the regulating valve, and the locking device includes a joint, a locking kit and a locking piece. The joint is used to achieve connection with the output end and the detection end; the locking kit is used to achieve sealing at the joint; and the locking piece is used to fix the locking kit, thereby preventing the locking kit from becoming ineffective due to loosening of the locking piece after long-term use.

[0041] The locking kit includes a first locking sleeve and a second locking sleeve that are fitted together. The first locking sleeve is sleeved on the outside of the joint, and the first locking sleeve is inserted into the second locking sleeve. The first locking sleeve is respectively pressed against the inner wall of the joint and the outer side of the joint to achieve the sealing of the joint and the downstream connecting pipe. The second locking sleeve is sleeved outside the first locking sleeve. An adjusting groove is arranged at one end of the second locking sleeve inserted into the locking member. When the locking member is connected to the valve body, a plurality of teeth formed by the adjusting groove are gathered together and overlapped along the rotation direction of the locking member, and the inner side thereof squeezes the first locking sleeve, so that the first locking sleeve is further pressed against the joint to improve its locking performance. At the same time, each tooth on the second locking sleeve is stuck on the inner side of the locking nut, which further improves the stability of the locking nut.

[0042] The present application provides a protective connecting pipe and a second locking nut at the output end of the conveying pipeline, and the protective connecting pipe is sleeved on the outside of the quick valve to prevent the valve body of the quick-connect valve extending out of the conveying pipeline from being accidentally touched when the downstream connecting pipe is connected, thereby causing the quick-connect valve to pop open; an external thread is provided on the pipe body of the protective connecting pipe, and the second locking nut is threadedly connected to the external thread of the protective connecting pipe, and the joint connection thread is connected to the external thread of the protective connecting pipe, so that the quick-connect valve is protected in the joint, thereby providing secondary protection for the quick-connect valve; at the same time, a second locking nut is provided on the external thread of the protective connecting pipe, and the joint and one end of the protective connecting pipe are limitedly locked to prevent the joint from rotating on the protective connecting pipe and being unable to be locked. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 This is a schematic structural diagram of a regulating valve in one embodiment of the present application;

[0044] Figure 2 A cross-sectional view of a regulating valve in one embodiment of the present application;

[0045] Figure 3 This is an exploded schematic diagram of the assembly of a joint and a locking device in a regulating valve in one embodiment of the present application;

[0046] Figure 4 This is a schematic structural diagram of a joint in a regulating valve in one embodiment of the present application;

[0047] Figure 5 This is a schematic diagram of the assembly of a joint and a locking kit in a regulating valve in one embodiment of the present application;

[0048] Figure 6 This is a structural schematic diagram of a valve core in a regulating valve in one embodiment of the present application;

[0049] Figure 7 This is a schematic structural diagram of a second locking sleeve in a regulating valve in one embodiment of the present application;

[0050] Figure 8 It is an exploded schematic diagram of the assembly of a second locking sleeve and a first locking sleeve in a regulating valve in one embodiment of the present application.

[0051] List of parts and reference numerals:

[0052] 1. Valve body; 2. Input end; 3. Detection end; 4. Locking kit; 5. Locking piece; 6. Output end; 7. Locking nut; 8. Valve chamber; 9. First locking sleeve; 10. Second locking sleeve; 11. Valve core; 12. Sleeve; 13. Output channel; 14. Protective connecting pipe; 15. Adjustment groove; 16. Inlet; 17. Delivery pipeline; 18. Second locking nut; 19. Connector. DETAILED DESCRIPTION

[0053] The present application is described in detail below with reference to embodiments, but the present application is not limited to these embodiments.

[0054] According to the attached Figure 1-8 The regulating valve comprises:

[0055] A valve body 1 is provided with an input channel and a valve cavity 8 inside, and the valve body 1 is provided with an input end 2, an output end 6 and a detection end 3 respectively;

[0056] The input channel and the valve chamber 8 are arranged along the extension direction of the valve body 1, and one end of the input channel is connected to the valve chamber 8;

[0057] The input end 2 is located at the other end of the input channel;

[0058] The detection end 3 is located between the input end 2 and the output end 6, the detection end 3 is communicated with the input channel of the valve body 1, and a pressure detection gauge is installed on the detection end 3;

[0059] The output end 6 is arranged close to the valve cavity 8, and the output end 6 is provided with two output channels 13, the two output channels 13 are respectively located at opposite sides of the valve cavity 8, and the axes of the two output channels 13 are located on the same straight line; one end of the two output channels 13 is respectively connected to the valve cavity 8, and the output end is installed with an output connection pipe or other locking kit;

[0060] A flow regulating member is located at the end of the valve body 1 facing away from the input end 2, one end of the flow regulating member is inserted into the valve cavity of the valve body 1, and the other end of the flow regulating member is located outside the valve body 1. The flow regulating member is screwed into or out of the valve body 1 to adjust the flow in the valve body 1;

[0061] A locking device, located at the output end 6, the locking device comprises a connector 19, a locking kit 4 and a locking member 5;

[0062] One end of the connector 19 is connected to the output end 6, and the other end of the connector 19 is connected to a locking member 5;

[0063] The locking kit 4 is located between the connector 19 and the locking member 5 , one end of the locking kit is inserted into the connector 19 , and the other end of the locking kit is inserted into the locking member 5 .

[0064] In the present application, the locking member 5 is a fastening nut.

[0065] Furthermore, the locking set 4 includes a first locking sleeve 9 and a second locking sleeve 10;

[0066] The second locking sleeve 10 is sleeved outside the first locking sleeve 9, one end of the second locking sleeve 10 is inserted into the end of the locking sleeve 4 facing away from the output end 6 and the detection end 3, and the other end of the second locking sleeve 10 is inserted into the locking member 5;

[0067] The end of the first locking sleeve 9 away from the locking member 5 extends outward from the second locking sleeve 10 and extends outward along the circumferential side, so that the first locking sleeve 9 as a whole forms a T-shaped structure, wherein the vertical beam of the T-shaped structure is inserted into the second locking sleeve 10, and the horizontal beam of the T-shaped structure is located at the end of the second locking sleeve 10 facing the joint 19;

[0068] The outwardly extending portion of the first locking sleeve 9 abuts against the inner wall of the joint 19 and the end of the second locking sleeve 10 respectively.

[0069] Furthermore, the first locking sleeve 9 and the second locking sleeve 10 are both elastic components.

[0070] Furthermore, the connector 19 is a quick connector.

[0071] In one embodiment of the present application, the structure of the connector 19 installed at the output end 6 is as shown in the attached Figure 5 As shown, the internal thread end of the connector 19 is threadedly connected to the output end 6, and the external thread end of the connector 19 is installed with a locking kit 4;

[0072] The locking member 5 is threadedly connected to the external thread end of the connector 19;

[0073] The installation method of the locking kit 4 is specifically as follows:

[0074] During installation, the internal thread end of the connector 19 is threadedly connected to the output end; the first locking sleeve 9 is inserted into the second locking sleeve 10 until the end of the second locking sleeve 10 is pressed against the portion of the first locking sleeve 9 extending outward in the radial direction; then the end of the first locking sleeve 9 extending outward in the radial direction is inserted into the inner side of the external thread end of the connector 19; finally, the locking piece 5 is buckled at the end of the external thread of the second locking sleeve 10 extending out of the external thread end of the connector 19, and then the locking piece 5 is rotated until the locking piece 5 is threadedly connected to the end of the connector 19.

[0075] Furthermore, the overall profile of the second locking sleeve 10 is in the shape of a convex letter;

[0076] The end with a larger cross section is inserted into the locking member 5 , and the end with a smaller cross section is inserted into the joint 19 .

[0077] Since the overall profile of the second locking sleeve 10 is in a convex shape, one end of the second locking sleeve 10 is inserted into the connector 19 , and the other end of the second locking sleeve 10 is placed on the end of the connector 19 facing away from the valve body 1 .

[0078] Furthermore, the sum of the length of the end of the second locking sleeve 10 with a smaller cross-section and the thickness of the extended portion of the first locking sleeve 9 is the same as the length of the end of the connector 19 facing away from the valve body 1 .

[0079] Thereby, the end of the second locking sleeve 10 with a smaller cross section is inserted into the joint 19, so that the first locking sleeve 9 can be pressed against the inner side of the joint 19 to achieve its sealing function.

[0080] Furthermore, the cross-section of the end of the second locking sleeve 10 inserted into the locking member 5 is larger, and a plurality of adjustment grooves 15 are evenly formed at the end;

[0081] The plurality of adjusting grooves 15 are circumferentially arranged along the second locking sleeve 10, and the adjusting grooves 15 penetrate from the inner side to the outer side of the second locking sleeve 10, so that the end with a larger cross-section of the second locking sleeve 10 is split into a plurality of circumferentially arranged latching teeth. When the locking member 5 is threadedly connected with the joint 19 and rotated, the end of each latching tooth facing the outer side of the locking member abuts against the locking member 5, thereby increasing the friction force with the locking member 5 and achieving the locking effect. At the same time, as the locking member 5 continues to rotate toward the end close to the valve body 1, adjacent latching teeth move closer to each other, and finally the caliber formed by the plurality of latching teeth is reduced, so that the first locking sleeve 9 is more tightly connected to the connecting pipe / joint, thereby improving its locking performance.

[0082] Furthermore, the cross section of the adjusting groove is a trapezoidal structure.

[0083] The upper bottom of the trapezoidal structure is arranged toward the inner side of the locking member 5 so that when the locking member 5 is installed, the latch teeth are pressed by the locking member 5 and are brought close to each other and stacked together to achieve locking, thereby further improving the locking force.

[0084] Furthermore, the flow regulating member includes a valve core 11 and a first locking nut 7;

[0085] The valve core 11 is screwed into the valve cavity 8 of the valve body;

[0086] The first locking nut 7 is sleeved on the valve core 11 , and the locking nut is threadedly connected to the valve body.

[0087] Furthermore, an output member is provided between the output end 6 and the connector 19, one end of the output member is sleeved on the valve body 1, and the other end of the output member is connected to the connector 19;

[0088] The output member includes a sleeve 12 and a delivery pipe, one end of the delivery pipe is fixedly connected to the sleeve 12, and the other end of the delivery pipe is connected to the joint 19;

[0089] The sleeve 12 is sleeved at the corresponding position of the valve body 1 and the output channel 13. The connection between the sleeve 12 and the delivery pipeline 17 is provided with an inlet 16, and the inlet 16 is connected to the delivery pipeline 17. When the sleeve 12 is sleeved on the valve body 1, the sleeve 12 can be rotated to make the inlet 16 correspond to the position of the output channel 13 and communicate with each other, so that the delivery medium in the valve body 1 flows from the valve cavity 8 through the inlet 16 into the delivery pipeline 17;

[0090] As the length of the valve core 11 screwed into the valve chamber 8 increases, the area of ​​the output channel 13 blocked by the valve core 11 also increases, thereby reducing the output flow rate of the medium; the shorter the length of the valve core 11 screwed into the valve chamber 8, the smaller the surface area blocking the output channel 13, thereby increasing the output flow rate of the medium; thereby, the size of the output flow rate of the medium can be adjusted by screwing the valve core 11 in or out.

[0091] In one embodiment of the present application, the sleeve 12 and the delivery pipe 17 are integrally formed, a quick-connect valve is installed in the delivery pipe 17, the input end of the quick-connect valve extends into the delivery pipe 17 and is connected to the inlet 16; the output end of the quick-connect valve faces away from the sleeve 12;

[0092] The end of the delivery pipe 17 facing away from the sleeve 12 is provided with a protective connecting pipe 14 and a second locking nut 18;

[0093] The protective connecting pipe 14 is sleeved outside the quick-connect valve, one end of the protective connecting pipe 14 is sealed and connected to the end of the delivery pipe 17 facing away from the sleeve 12, and the pipe body of the protective connecting pipe 14 is provided with an external thread;

[0094] The output end of the quick-connect valve passes through the protective connecting pipe 14 and is located at the end of the protective connecting pipe 14 facing the joint 19.

[0095] The second locking nut 18 is threadedly connected to the external thread;

[0096] The end of the joint 19 facing the valve body is threadedly connected to the end of the protective connecting pipe 14 facing away from the sleeve, so as to protect the quick-connect valve on the inside.

[0097] In the present application, the quick-connect valve is a pneumatic straight-through quick connector.

[0098] The above are only a few embodiments of the present application and do not constitute any form of limitation to the present application. Although the present application is disclosed as above with preferred embodiments, it is not intended to limit the present application. Any technician familiar with the profession, without departing from the scope of the technical solution of the present application, using the technical content disclosed above to make slight changes or modifications are equivalent to equivalent implementation cases and fall within the scope of the technical solution.

Claims

1. A regulating valve, characterized in that: include: The valve body is respectively provided with an input end, an output end and a detection end, and the valve body is provided with an input channel and a valve cavity; The input channel is arranged along the extension direction of the valve body; The input end and the valve cavity are respectively communicated with two ends of the input channel; The output end is in communication with the valve chamber; The detection end is in communication with the input channel; A flow regulating member is arranged on a side of the valve cavity away from the input channel, one end of the flow regulating member passes through the valve body and is inserted into the valve cavity, the other end of the flow regulating member extends out of the valve body, and the flow regulating member is connected to the valve cavity; A locking device, arranged at the output end, comprising: a connector, a locking kit and a locking member; One end of the connector is connected to the output end; One end of the locking sleeve is inserted into an end of the connector away from the output end, and the other end of the locking sleeve extends out of the connector; One end of the locking kit extending out of the joint is inserted into the locking piece; The locking piece is threadedly connected to the joint, and the locking piece presses against an end of the locking assembly extending out of the joint.

2. A regulating valve according to claim 1, characterized in that: The locking kit comprises a first locking sleeve and a second locking sleeve; The second locking sleeve is sleeved outside the first locking sleeve, one end of the second locking sleeve is inserted into the end of the connector facing away from the output end, and the other end of the second locking sleeve is inserted into the locking member; One end of the first locking sleeve away from the locking member extends outward from the locking member and extends outward along the circumferential side; The outwardly extending portion of the first locking sleeve abuts against the inner wall of the joint and the end of the second locking sleeve respectively.

3. A regulating valve according to claim 2, characterized in that: The first locking sleeve and the second locking sleeve are both elastic components.

4. A regulating valve according to claim 2, characterized in that: The overall profile of the second locking sleeve is in the shape of a convex letter; The end with a larger cross-section is inserted into the locking piece, and the end with a smaller cross-section is inserted into the joint.

5. A regulating valve according to claim 4, characterized in that: The sum of the length of the end of the second locking sleeve with a smaller cross-section and the thickness of the extended portion of the first locking sleeve is the same as the length of the end of the connector facing away from the valve body.

6. A regulating valve according to claim 4, characterized in that: The end of the second locking sleeve that is inserted into the locking piece with a larger cross-section is evenly provided with a plurality of adjustment grooves; The plurality of adjustment grooves are arranged along the circumference of the second locking sleeve, and the adjustment grooves radially penetrate from the inner side to the outer side of the second locking sleeve. The plurality of adjustment grooves divide the end of the locking member with a larger cross-section into a plurality of locking teeth.

7. A regulating valve according to claim 6, characterized in that: The cross section of the adjusting groove is a trapezoidal structure; Wherein, the upper bottom of the trapezoidal structure is arranged toward the inner side of the second locking sleeve.

8. The regulating valve according to claim 1, characterized in that: The flow regulating member comprises a valve core and a first locking nut; The valve core passes through the valve body and is inserted into the valve cavity; The first locking nut is sleeved on the valve core, and the first locking nut is threadedly connected to the valve body.

9. The regulating valve according to claim 1, characterized in that: The output end is provided with an output member; The output member includes a sleeve and a delivery pipeline; The sleeve is sleeved on a position on the valve body corresponding to the output end and can rotate along the valve body, and the sleeve is provided with an inlet connected to the output end; One end of the delivery pipeline is communicated with the inlet, and the other end of the delivery pipeline is arranged away from the sleeve.

10. A regulating valve according to claim 9, characterized in that: The end of the delivery pipeline facing away from the casing is provided with a protective connecting pipe and a second locking nut; One end of the protective connecting pipe is fixedly connected to the end of the conveying pipeline, and the pipe body of the protective connecting pipe is provided with an external thread; The second locking nut is threadedly connected to the external thread; One end of the joint facing the valve body is threadedly connected to one end of the protective connecting pipe facing away from the sleeve.

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