Intelligent cut-off pressure reducing valve structure

Abstract

The utility model discloses an intelligent cut-off pressure reducing valve structure which comprises a valve body, a valve assembly, a coded lock self-closing assembly, a screw sleeve assembly, a hand wheel assembly, an overflowing cut-off assembly and a tail pipe. A first cavity, a second cavity and a third cavity are formed in the valve body, and the first cavity, the second cavity and the third cavity are communicated with one another; the valve assembly is arranged in the first cavity, the coded lock self-closing assembly and the screw sleeve assembly are both arranged in the second cavity, one end of the hand wheel assembly is arranged in the first cavity and connected with the valve assembly, and the overflowing cut-off assembly is arranged in the third cavity and below the valve assembly. The tail pipe is connected with the valve body and is oppositely communicated with the third cavity; the two-dimensional code identification is scanned, the hand wheel is pressed and rotated, and the hand wheel drives the shifting piece and the valve to rotate through the valve rod, so that the first cavity, the second cavity and the third cavity communicate with each other; the first cavity and the third cavity do not communicate with each other through the cut-off ball, airflow circulation is cut off, and airflow overflowing is prevented; the use safety is improved, and the operation is simpler.

Description

Technical Field

[0001] The utility model relates to the technical field of cut-off pressure reducing valves, in particular to an intelligent cut-off pressure reducing valve structure. Background Art

[0002] The pressure reducing valve reduces the inlet pressure to a certain required outlet pressure through adjustment, and relies on the energy of the medium itself to automatically maintain a stable outlet pressure. From the perspective of fluid mechanics, the pressure reducing valve is a throttling element with variable local resistance, that is, by changing the throttling area, the flow rate and the kinetic energy of the fluid are changed, resulting in different pressure losses, thereby achieving the purpose of reducing pressure. Then, relying on the adjustment of the control and regulation system, the fluctuation of the pressure behind the valve is balanced with the spring force, so that the pressure behind the valve remains constant within a certain error range.

[0003] With the continuous popularization of gas, the number of users is constantly increasing, and it also brings safety hazards to people. The kitchen is a place with high oil smoke, and such places have high requirements for gas pipes. At present, the pipeline from the pressure reducing valve to the stove is generally made of rubber hoses. Rubber hoses are very easy to age in such a high oil smoke environment. Now many families will only close the valve of the stove after using the gas, and are lazy or forget to close the gas pressure reducing valve. The existing pressure reducing valve has only a simple pressure reducing function and does not have the purpose of automatically closing the valve after gas leakage. Once such a pressure reducing valve leaks, it is very easy to cause gas poisoning or fire. No matter what happens, it is a serious loss to people's personal and property safety.

[0004] How to solve the pain point of defects in existing gas pressure reducing valves is a topic that the applicant and other practitioners are eager to solve and overcome. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes an intelligent cut-off pressure reducing valve structure.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A smart cut-off pressure reducing valve structure comprises a valve body, a valve assembly, a password lock self-closing assembly, a thread sleeve assembly, a handwheel assembly, an overcurrent cut-off assembly and a tail pipe; a first cavity, a second cavity and a third cavity are arranged in the valve body, and the first cavity, the second cavity and the third cavity are relatively connected; the valve assembly is placed in the first cavity, the password lock self-closing assembly and the thread sleeve assembly are both placed in the second cavity, one end of the handwheel assembly is placed in the first cavity and connected to the valve assembly, the overcurrent cut-off assembly is placed in the third cavity and placed below the valve assembly; the tail pipe is connected to the valve body and is relatively connected to the third cavity.

[0008] Preferably, the valve assembly includes a paddle and a valve, the valve is placed in the first cavity, one end of the valve is placed at the connecting point of the first cavity, the second cavity and the third cavity; one end of the paddle is inserted into the valve.

[0009] Preferably, the self-closing component of the password lock includes a password shaft, a password disk and a password protection disk; the password shaft includes a driving shaft and a conical gasket, and the conical gasket is sleeved on the driving shaft; a sealing sleeve is sleeved on the driving shaft, and the password disk is sleeved on the sealing sleeve; the password protection disk is sleeved on the driving shaft, and a reset spring is arranged between the password protection disk and the sealing sleeve, one end of the reset spring is in contact with the sealing sleeve, and the other end of the reset spring is in contact with the password protection disk, and the reset spring is sleeved on the driving shaft; a top tightening flat gasket is sleeved on one side of the driving shaft located on the password protection disk, and a first nut is sleeved on one side of the top tightening flat gasket.

[0010] Preferably, the silk sleeve assembly includes an outlet valve seat, a first sealing ring and a sealing sleeve; the first sealing ring and the sealing sleeve are sequentially sleeved on the outlet valve seat, and one end of the drive shaft is placed in the outlet valve seat; a first step surface and a second step surface are sequentially arranged in the second cavity, and the sealing sleeve abuts against the first step surface; a third step surface is arranged on the outer surface of the outlet valve seat, and the second step surface is symmetrical to the third step surface.

[0011] Preferably, a self-closing spring is also provided in the second cavity, and a fourth step surface is provided at the connecting part of the first cavity and the second cavity; one end of the self-closing spring is placed on the fourth step surface, and the other end of the self-closing spring is sleeved on the first nut and contacts the tightening flat washer.

[0012] Preferably, the handwheel assembly includes a handwheel, a valve stem, a friction plate and a second nut; the first cavity is provided with an opening, and a clamping nut is provided at the opening; one end of the valve stem passes through the clamping nut and is placed in the first cavity, and the valve stem is plugged into the paddle; the other end of the valve stem is placed in the handwheel and connected to the second nut; the friction plate is sleeved on the valve stem and abuts against the clamping nut.

[0013] Preferably, the first cavity is provided with a fifth step surface at the opening, a sealing gasket is provided on the fifth step surface, and the sealing gasket is sleeved on the valve stem; an annular groove is provided in the clamping nut, a second sealing ring is provided in the annular groove, and the second sealing ring is sleeved on the valve stem.

[0014] Preferably, a fourth cavity is provided in the handwheel, a fixed block and a compression spring are provided in the fourth cavity; the second nut is placed in the fixed block, a sixth step surface is provided around the fourth cavity, the compression spring is sleeved on the valve stem, one end of the compression spring abuts against the sixth step surface, and the other end of the compression spring abuts against the second nut; the fixed block is located on one side of the outside of the handwheel and is coated with a QR code.

[0015] Preferably, the overcurrent cut-off assembly includes a cut-off ball and a sealing seat; the cut-off ball is placed on the sealing seat and is located on one side of the connecting point between the first cavity and the third cavity, and the diameter of the cut-off ball is larger than the diameter of the connecting point between the first cavity and the third cavity; the sealing seat is hollow and is relatively connected to the tail pipe.

[0016] Preferably, a self-closing valve chip is also provided on the valve body.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model designs an intelligent cut-off pressure reducing valve structure, in which a sealing gasket is sleeved on the valve stem, and a second sealing ring is sleeved on the valve stem; the connection between the clamping nut and the valve body is made tighter, and gas leakage does not occur at the junction of the clamping nut and the valve body; a fixed block is coated with a QR code mark on one side of the outer side of the hand wheel; a rotation mark and the words "open and close" are marked on the hand wheel; the QR code mark is scanned, the hand wheel is pressed and rotated, and the hand wheel drives the paddle and the valve to rotate through the valve stem, so that the first cavity, the second cavity and the third cavity are relatively connected, and the airflow flows normally; the second nut squeezes the compression spring, and the hand wheel contacts the friction plate; a cut-off ball is placed at the connecting position of the first cavity and the third cavity, so that the first cavity and the third cavity are not connected, the airflow is cut off, and the airflow is prevented from flowing; the safety of use is improved, but the operation is simpler. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 It is a schematic diagram of the structure proposed by the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the utility model from another angle;

[0022] Figure 3 A cross-sectional view of the utility model;

[0023] Figure 4 This is a structural schematic diagram of the password lock self-closing component proposed by the utility model;

[0024] Figure 5 This is an exploded view of the self-closing component of the password lock proposed by the utility model;

[0025] Figure 6 This is a structural schematic diagram of the silk sleeve assembly proposed by the utility model;

[0026] Figure 7 A cross-sectional view of the hand wheel assembly proposed in the utility model;

[0027] Figure 8 A cross-sectional view of the valve body proposed by the utility model;

[0028] Fig. 9 It is a cross-sectional view of the compression nut proposed by the utility model.

[0029] Legend:

[0030] 1. Valve body, 2. Valve assembly, 3. Password lock self-closing assembly, 4. Thread sleeve assembly, 5. Handwheel assembly, 6. Overcurrent cut-off assembly, 7. Tail pipe, 8. Self-closing valve chip, 11. First cavity, 12. Second cavity, 13. Third cavity, 21. Paddle, 22. Valve, 31. Password shaft, 32. Password disk, 33. Password protection disk, 34. Sealing sleeve, 35. Reset spring, 36. Tightening flat washer, 37. First nut, 41. Outlet valve seat, 42. First sealing ring, 43. Sealing bushing, 51. Handwheel, 52. Valve stem, 53, friction plate, 54, second nut, 55, fourth cavity, 56, fixing block, 57, compression spring, 551, sixth step surface, 61, cut-off ball, 62, sealing seat, 111, opening, 112, locking nut, 113, fifth step surface, 114, sealing gasket, 115, annular groove, 116, second sealing ring, 121, first step surface, 122, second step surface, 123, self-closing spring, 124, fourth step surface, 311, drive shaft, 312, conical gasket, 411, third step surface. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first", "second", and "third" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more than two; in addition, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Reference Figures 1 to 9 As shown, an intelligent cut-off pressure reducing valve structure includes a valve body 1, a valve assembly 2, a password lock self-closing assembly 3, a thread sleeve assembly 4, a handwheel assembly 5, an over-current cut-off assembly 6 and a tail pipe 7; a first cavity 11, a second cavity 12 and a third cavity 13 are arranged in the valve body 1, and the first cavity 11, the second cavity 12 and the third cavity 13 are relatively connected; the valve assembly 2 is placed in the first cavity 11, the password lock self-closing assembly 3 and the thread sleeve assembly 4 are both placed in the second cavity 12, one end of the handwheel assembly 5 is placed in the first cavity 11 and connected to the valve assembly 2, and the over-current cut-off assembly 6 is placed in the third cavity 13 and placed below the valve assembly 2; the tail pipe 7 is connected to the valve body 1 and is relatively connected to the third cavity 13.

[0034] The valve assembly 2 includes a paddle 21 and a valve 22, the valve 22 is placed in the first cavity 11, and one end of the valve 22 is placed at the connection between the first cavity 11, the second cavity 12 and the third cavity 13; one end of the paddle 21 is inserted into the valve 22; the password lock self-closing assembly 3 includes a password shaft 31, a password disk 32 and a password protection disk 33; the password shaft 31 includes a driving shaft 311 and a conical pad 312, and the conical pad 312 is sleeved on the driving shaft 311; a sealing The code disk 32 is sleeved on the sealing sleeve 34; the code protection disk 33 is sleeved on the driving shaft 311, and a reset spring 35 is arranged between the code protection disk 33 and the sealing sleeve 34, one end of the reset spring 35 abuts against the sealing sleeve 34, and the other end of the reset spring 35 abuts against the code protection disk 33, and the reset spring 35 is sleeved on the driving shaft 311; the driving shaft 311 is located on one side of the code protection disk 33 and is sleeved with a top tightening flat washer 36, and one side of the top tightening flat washer 36 is sleeved with a first nut 37.

[0035] The thread sleeve assembly 4 includes an outlet valve seat 41, a first sealing ring 42 and a sealing bushing 43; the first sealing ring 42 and the sealing bushing 43 are both sequentially sleeved on the outlet valve seat 41, and one end of the drive shaft 311 is placed in the outlet valve seat 41; the first step surface 121 and the second step surface 122 are sequentially arranged in the second cavity 12, and the sealing bushing 43 abuts against the first step surface 121; a third step surface 411 is arranged on the outer surface of the outlet valve seat 41, and the second step surface 122 is symmetrical with the third step surface 411; a self-closing spring 123 is also arranged in the second cavity 12, and a fourth step surface 124 is arranged at the connecting part of the first cavity 11 and the second cavity 12; one end of the self-closing spring 123 is placed on the fourth step surface 124, and the other end of the limit block 123 is sleeved on the first nut 37 and abuts against the tightening flat washer 36.

[0036] The handwheel assembly 5 includes a handwheel 51, a valve stem 52, a friction plate 53 and a second nut 54; the first cavity 11 is provided with an opening 111, and a clamping nut 112 is provided at the opening 111; one end of the valve stem 52 passes through the clamping nut 112 and is placed in the first cavity 11, and the valve stem 52 is plugged with the paddle 21; the other end of the valve stem 52 is placed in the handwheel 51 and connected to the second nut 54; the friction plate 53 is sleeved on the valve stem 52 and abuts against the clamping nut 112; the first cavity 1 A fifth step surface 113 is provided at the opening 111, a sealing gasket 114 is provided on the fifth step surface 113, and the sealing gasket 114 is sleeved on the valve stem 52; an annular groove 115 is provided in the clamping nut 112, a second sealing ring 116 is provided in the annular groove 115, and the second sealing ring 116 is sleeved on the valve stem 52; so that the clamping nut 112 is more tightly connected to the valve body 1, and no gas leakage occurs at the connection between the clamping nut 112 and the valve body 1.

[0037] A fourth cavity 55 is provided in the hand wheel 51, and a fixing block 56 and a compression spring 57 are provided in the fourth cavity 55; the second nut 54 is placed in the fixing block 56, and a sixth step surface 551 is arranged around the fourth cavity 55, and the compression spring 57 is sleeved on the valve stem 52, one end of the compression spring 57 abuts against the sixth step surface 551, and the other end of the compression spring 57 abuts against the second nut 54; the fixing block 56 is located on one side of the outer side of the hand wheel 51 and is coated with a QR code logo; the hand wheel 51 is marked with a rotation logo and the words open and close; scan the QR code logo, press and rotate the hand wheel 51, the hand wheel 51 drives the paddle 21 and the valve 22 to rotate through the valve stem 52, so that the first cavity 11, the second cavity 12 and the third cavity 13 are relatively connected, and the airflow flows normally; the second nut 54 squeezes the compression spring 57, and the hand wheel 51 contacts the friction plate 53.

[0038] The over-current cut-off assembly 6 includes a cut-off ball 61 and a sealing seat 62; the cut-off ball 61 is placed on the sealing seat 62 and is located on the side of the connecting point between the first cavity 11 and the third cavity 13, and the diameter of the cut-off ball 61 is larger than the diameter of the connecting point between the first cavity 11 and the third cavity 13; the sealing seat 62 is hollow and is relatively connected to the tail pipe 7; by placing the cut-off ball 61 at the connecting point between the first cavity 11 and the third cavity 13, the first cavity 11 and the third cavity 13 are not connected, the airflow is cut off, and the airflow is prevented from flowing; a self-closing valve chip 8 is also provided on the valve body 1, and the external electronic equipment is connected by scanning the self-closing valve chip 8.

[0039] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0040] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. An intelligent cut-off pressure reducing valve structure, characterized in that: It includes a valve body, a valve assembly, a password lock self-closing assembly, a thread sleeve assembly, a handwheel assembly, an over-current cut-off assembly and a tail pipe; the valve body is provided with a first cavity, a second cavity and a third cavity, and the first cavity, the second cavity and the third cavity are relatively connected; the valve assembly is placed in the first cavity, the password lock self-closing assembly and the thread sleeve assembly are both placed in the second cavity, one end of the handwheel assembly is placed in the first cavity and connected to the valve assembly, the over-current cut-off assembly is placed in the third cavity and placed below the valve assembly; the tail pipe is connected to the valve body and is relatively connected to the third cavity.

2. According to claim 1, the intelligent cut-off pressure reducing valve structure is characterized in that: The valve assembly includes a paddle and a valve, the valve is placed in the first cavity, one end of the valve is placed at the connecting point of the first cavity, the second cavity and the third cavity; one end of the paddle is inserted into the valve.

3. According to claim 2, the intelligent cut-off pressure reducing valve structure is characterized in that: The self-closing component of the password lock includes a password shaft, a password disk and a password protection disk; the password shaft includes a driving shaft and a conical pad, and the conical pad is sleeved on the driving shaft; a sealing sleeve is sleeved on the driving shaft, and the password disk is sleeved on the sealing sleeve; the password protection disk is sleeved on the driving shaft, and a reset spring is arranged between the password protection disk and the sealing sleeve, one end of the reset spring is in contact with the sealing sleeve, and the other end of the reset spring is in contact with the password protection disk, and the reset spring is sleeved on the driving shaft; the driving shaft is provided with a top tightening flat pad on one side of the password protection disk, and a first nut is sleeved on one side of the top tightening flat pad.

4. According to claim 3, the intelligent cut-off pressure reducing valve structure is characterized in that: The silk sleeve assembly includes an outlet valve seat, a first sealing ring and a sealing sleeve; the first sealing ring and the sealing sleeve are sequentially sleeved on the outlet valve seat, and one end of the drive shaft is placed in the outlet valve seat; a first step surface and a second step surface are sequentially arranged in the second cavity, and the sealing sleeve abuts against the first step surface; a third step surface is arranged on the outer surface of the outlet valve seat, and the second step surface is symmetrical with the third step surface.

5. According to claim 4, the intelligent cut-off pressure reducing valve structure is characterized in that: A self-closing spring is also arranged in the second cavity, and a fourth step surface is arranged at the connecting part of the first cavity and the second cavity; one end of the self-closing spring is placed on the fourth step surface, and the other end of the self-closing spring is sleeved on the first nut and contacts the tightening flat washer.

6. The intelligent cut-off pressure reducing valve structure according to claim 5, characterized in that: The handwheel assembly includes a handwheel, a valve stem, a friction plate and a second nut; the first cavity is provided with an opening, and a clamping nut is provided at the opening; one end of the valve stem passes through the clamping nut and is placed in the first cavity, and the valve stem is plugged into the paddle; the other end of the valve stem is placed in the handwheel and connected to the second nut; the friction plate is sleeved on the valve stem and abuts against the clamping nut.

7. The intelligent cut-off pressure reducing valve structure according to claim 6, characterized in that: The first cavity is provided with a fifth step surface at the opening, a sealing gasket is provided on the fifth step surface, and the sealing gasket is sleeved on the valve stem; an annular groove is provided in the clamping nut, a second sealing ring is provided in the annular groove, and the second sealing ring is sleeved on the valve stem.

8. The intelligent cut-off pressure reducing valve structure according to claim 7, characterized in that: A fourth cavity is provided in the handwheel, and a fixing block and a compression spring are provided in the fourth cavity; the second nut is placed in the fixing block, and a sixth step surface is provided around the fourth cavity, the compression spring is sleeved on the valve stem, one end of the compression spring abuts against the sixth step surface, and the other end of the compression spring abuts against the second nut; the fixing block is located on one side of the outside of the handwheel and is coated with a QR code.

9. The intelligent cut-off pressure reducing valve structure according to claim 8, characterized in that: The overcurrent cut-off assembly includes a cut-off ball and a sealing seat; the cut-off ball is placed on the sealing seat and is located on one side of the connecting point between the first cavity and the third cavity, and the diameter of the cut-off ball is larger than the diameter of the connecting point between the first cavity and the third cavity; the sealing seat is hollow and is relatively connected to the tail pipe.

10. The intelligent cut-off pressure reducing valve structure according to claim 1, characterized in that: A self-closing valve chip is also arranged on the valve body.

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