Intelligent cut-off pressure reducing valve device

Abstract

The utility model discloses an intelligent cut-off pressure reducing valve device which comprises a first valve body, a second valve body, a reset assembly, an electromagnet assembly, a tightening assembly and a control box. The first valve body, the second valve body and the electromagnet assembly are all arranged in the control box, one end of the second valve body is connected with the first valve body, and the other end of the second valve body penetrates through the control box and is connected with the tightening assembly; one end of the reset assembly penetrates through the control box and the second valve body and is arranged in the second valve body, the electromagnet assembly is arranged on the second valve body, and the reset assembly corresponds to the electromagnet assembly in position; the first valve body is communicated with the interior of the second valve body; after the control panel electrifies the coil, the movable iron core and the fixed iron core are magnetized and move upwards, so that the push rod is driven to push the cutting ball guide seat and the cutting ball to move upwards, the cutting ball blocks the second cavity, and gas passing through the second cavity and the first cavity is cut off; closing the pressure reducing valve; the reset operation is simple, the cut-off reaction is rapid, and gas leakage can be prevented.

Description

Technical Field

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

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

[0007] An intelligent cut-off pressure reducing valve device comprises a first valve body, a second valve body, a reset assembly, an electromagnet assembly, a tightening assembly and a control box; the first valve body, the second valve body and the electromagnet assembly are all placed in the control box, one end of the second valve body is connected to the first valve body, and the other end of the second valve body passes through the control box and is connected to the tightening assembly; one end of the reset assembly passes through the control box and the second valve body and is placed in the second valve body, the electromagnet assembly is placed on the second valve body and the positions of the reset assembly and the electromagnet assembly correspond; the first valve body and the interior of the second valve body are relatively connected.

[0008] Preferably, the electromagnet assembly includes a bracket, a frame and a wire rack; the bracket is placed on the second valve body, the frame is placed in the bracket and connected to the bracket; the wire rack is placed in the frame and connected to the frame, and the wire rack includes a base, a shaft and a first baffle; one end of the shaft passes through the base and is placed at the bottom of the base, and the other end of the shaft is connected to the first baffle.

[0009] Preferably, a coil is sleeved on the shaft rod, and the coil is located between the base and the first baffle plate; two permanent magnets corresponding to each other are arranged in the base, and the two permanent magnets are respectively placed on both sides of the shaft rod; two armatures corresponding to each other are arranged in the base, and the two armatures are respectively placed on the other two sides of the shaft rod; a first through hole is arranged at the bottom of the base, and a second through hole is arranged on the first baffle plate, the shaft rod is hollow, one end of the shaft rod is connected to the first through hole, and the other end of the shaft rod is connected to the second through hole.

[0010] Preferably, the electromagnet assembly also includes a moving iron core, a fixed iron core and a push rod; one end of the moving iron core is placed inside the shaft rod, and the other end of the moving iron core passes through the shaft rod and is placed outside the shaft rod; the bracket is provided with a third through hole at a position corresponding to the moving iron core, and the moving iron core is provided with a second baffle on one side of the third through hole.

[0011] Preferably, the frame is provided with a fourth through hole at a position corresponding to the second through hole, and the diameter of the fourth through hole is smaller than the diameter of the second through hole; one end of the fixed iron core is placed in the shaft rod and conflicts with the moving iron core, and the other end of the fixed iron core conflicts with the frame; one end of the push rod passes through the fixed iron core and is placed in the moving iron core, and the push rod is threadedly connected to the moving iron core; the other end of the push rod passes through the frame and is placed in the second valve body.

[0012] Preferably, a first cavity, a second cavity and a third cavity are provided in the second valve body; the first cavity, the second cavity and the third cavity are relatively connected, and the second cavity and the third cavity are symmetrically positioned; a fourth cavity is provided in the first valve body, and the fourth cavity is relatively connected to the second cavity.

[0013] Preferably, a cutting ball guide seat and a cutting ball are provided in the third cavity; the cutting ball guide seat is connected to the push rod, and the cutting ball is placed on the cutting ball guide seat; the reset assembly includes a reset rod, one end of which is placed in the second cavity and above the cutting ball.

[0014] Preferably, two first sealing rings are sequentially sleeved on the cutting ball guide seat, and the two first sealing rings are in conflict with the inner wall of the third cavity; a second sealing ring is provided at the upper end of the cutting ball, and the second sealing ring is confined in the third cavity; the inner diameter of the second sealing ring is smaller than the diameter of the cutting ball.

[0015] Preferably, the tightening assembly includes a sealing nozzle, and the sealing nozzle is in communication with the first cavity.

[0016] Preferably, a valve cover is also provided on the first 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 device. After the control board energizes the coil, the moving iron core and the fixed iron core are magnetized, and the moving iron core and the fixed iron core move upward, thereby driving a push rod to push a cut-off ball guide seat and a cut-off ball to move upward, and the cut-off ball blocks the second cavity, and the gas passing through the fourth cavity, the second cavity and the first cavity is cut off in the second cavity; the pressure reducing valve is closed; after power is cut off, the reset component is pressed, the reset rod presses the cut-off ball, the cut-off ball and the cut-off ball guide seat move downward to reset, and the moving iron core and the fixed iron core also move downward to reset, so that the first cavity, the second cavity and the third cavity are connected again; the reset operation is simple, the cut-off response is rapid, and gas leakage can be prevented. 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 without the control box and the valve cover;

[0022] Figure 3 This is a schematic diagram of the structure of the electromagnet assembly proposed by the utility model;

[0023] Figure 4 A cross-sectional view of the electromagnet assembly proposed in the utility model;

[0024] Figure 5 This is a cross-sectional view of the second valve body proposed by the utility model;

[0025] Figure 6 This is an exploded view of the electromagnet assembly proposed by the utility model;

[0026] Figure 7 It is a structural schematic diagram of the wire rack proposed by the utility model;

[0027] Figure 8 This is an overall cross-sectional view of the utility model.

[0028] Legend:

[0029] 1. first valve body, 2. second valve body, 3. reset assembly, 4. electromagnet assembly, 5. tightening assembly, 6. control box, 7. cut-off ball guide seat, 8. cut-off ball, 11. fourth cavity, 12. valve cover, 21. first cavity, 22. second cavity, 23. third cavity, 31. reset rod, 41. bracket, 42. frame, 43. wire rack, 44. moving iron core, 45. fixed iron core, 46. push rod, 51. sealing nozzle, 71. first sealing ring, 81. second sealing ring, 411. third through hole, 431. base, 432. shaft rod, 433. first baffle, 434. coil, 435. permanent magnet, 436. armature, 437. first through hole, 438. second through hole, 421. fourth through hole, 441. second baffle. DETAILED DESCRIPTION

[0030] 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.

[0031] 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.

[0032] Reference Figures 1 to 8 As shown, an intelligent cut-off pressure reducing valve device includes a first valve body 1, a second valve body 2, a reset assembly 3, an electromagnet assembly 4, a tightening assembly 5 and a control box 6; the first valve body 1, the second valve body 2 and the electromagnet assembly 4 are all placed in the control box 6, one end of the second valve body 2 is connected to the first valve body 1, and the other end of the second valve body 2 passes through the control box 6 and is connected to the tightening assembly 5; one end of the reset assembly 3 passes through the control box 6 and the second valve body 2 and is placed in the second valve body 2, the electromagnet assembly 4 is placed on the second valve body 2 and the positions of the reset assembly 3 and the electromagnet assembly 4 correspond; the first valve body 1 is relatively connected to the inside of the second valve body 2.

[0033] The electromagnet assembly 4 includes a bracket 41, a frame 42 and a wire rack 43; the bracket 41 is placed on the second valve body 2, the frame 42 is placed in the bracket 41 and connected to the bracket 41; the wire rack 43 is placed in the frame 42 and connected to the frame 42, and the wire rack 43 includes a base 431, a shaft 432 and a first baffle 433; one end of the shaft 432 passes through the base 431 and is placed at the bottom of the base 431, and the other end of the shaft 432 is connected to the first baffle 433; a coil 434 is sleeved on the shaft 432, and the coil 434 is located between the base 431 and The first baffle 433 is between the first baffle 433; two permanent magnets 435 are arranged in corresponding positions in the base 431, and the two permanent magnets 435 are respectively placed on both sides of the shaft 432; two armatures 436 are arranged in corresponding positions in the base 431, and the two armatures 436 are respectively placed on the other two sides of the shaft 432; a first through hole 437 is arranged at the bottom of the base 431, and a second through hole 438 is arranged on the first baffle 433. The shaft 432 is hollow, one end of the shaft 432 is connected to the first through hole 437, and the other end of the shaft 432 is connected to the second through hole 438.

[0034] The electromagnet assembly 4 also includes a moving iron core 44, a fixed iron core 45 and a push rod 46; one end of the moving iron core 44 is placed in the shaft 432, and the other end of the moving iron core 44 passes through the shaft 432 and is placed outside the shaft 432; the bracket 41 is provided with a third through hole 411 at a position corresponding to the moving iron core 44, and the moving iron core 44 is sleeved with a second baffle 441 on one side of the third through hole 411; the frame 42 is provided with a fourth through hole 421 at a position corresponding to the second through hole 438, and the diameter of the fourth through hole 421 is smaller than the diameter of the second through hole 438; one end of the fixed iron core 45 is placed in the shaft 432 and conflicts with the moving iron core 44, and the other end of the fixed iron core 45 conflicts with the frame 42; one end of the push rod 46 passes through the fixed iron core 45 and is placed in the moving iron core 44, and the push rod 46 is threadedly connected to the moving iron core 44; the other end of the push rod 46 passes through the frame 42 and is placed in the second valve body 2.

[0035] After the control board energizes the coil 434, the moving iron core 44 and the fixed iron core 45 are magnetized, and the moving iron core 44 and the fixed iron core 45 move upward, thereby driving the push rod 46 to push the cutting ball guide seat 7 and the cutting ball 8 to move upward, and the cutting ball 8 blocks the second cavity 22, and the gas passing through the fourth cavity 11, the second cavity 22 and the first cavity 21 is cut off in the second cavity 22; the pressure reducing valve is closed; after power is off, the reset assembly 3 is pressed, and the reset rod 31 presses the cutting ball 8, and the cutting ball 8 and the cutting ball guide seat 7 move downward to reset, and the moving iron core 44 and the fixed iron core 45 also move downward to reset, so that the first cavity 21, the second cavity 22 and the third cavity 23 are connected again.

[0036] A first cavity 21, a second cavity 22 and a third cavity 23 are provided in the second valve body 2; the first cavity 21, the second cavity 22 and the third cavity 23 are relatively connected, and the second cavity 22 and the third cavity 23 are relatively symmetrically positioned; a fourth cavity 11 is provided in the first valve body 1, and the fourth cavity 11 is relatively connected to the second cavity 22; the tightening assembly 5 includes a sealing nozzle 51, and the sealing nozzle 51 is relatively connected to the first cavity 21; a valve cover 12 is also provided on the first valve body 1.

[0037] A cutting ball guide seat 7 and a cutting ball 8 are arranged in the third cavity 23; the cutting ball guide seat 7 is connected to the push rod 46, and the cutting ball 8 is placed on the cutting ball guide seat 7; the reset assembly 3 includes a reset rod 31, one end of which is placed in the second cavity 22 and above the cutting ball 8, and the reset rod 31 resets the cutting ball 8; two first sealing rings 71 are sequentially sleeved on the cutting ball guide seat 7, and the two first sealing rings 71 are in conflict with the inner wall of the third cavity 23; a second sealing ring 81 is arranged on the upper end of the cutting ball 8, and the second sealing ring 81 is limited in the third cavity 23; the inner diameter of the second sealing ring 81 is smaller than the diameter of the cutting ball 8.

[0038] 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.

[0039] 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 device, characterized in that: It includes a first valve body, a second valve body, a reset assembly, an electromagnet assembly, a tightening assembly and a control box; the first valve body, the second valve body and the electromagnet assembly are all placed in the control box, one end of the second valve body is connected to the first valve body, and the other end of the second valve body passes through the control box and is connected to the tightening assembly; one end of the reset assembly passes through the control box and the second valve body and is placed in the second valve body, the electromagnet assembly is placed on the second valve body and the positions of the reset assembly and the electromagnet assembly correspond to each other; the first valve body and the interior of the second valve body are relatively connected.

2. According to claim 1, the intelligent cut-off pressure reducing valve device is characterized in that: The electromagnet assembly includes a bracket, a frame and a wire rack; the bracket is placed on the second valve body, the frame is placed in the bracket and connected to the bracket; the wire rack is placed in the frame and connected to the frame, and the wire rack includes a base, a shaft and a first baffle; one end of the shaft passes through the base and is placed at the bottom of the base, and the other end of the shaft is connected to the first baffle.

3. According to claim 2, the intelligent cut-off pressure reducing valve device is characterized in that: A coil is sleeved on the shaft rod, and the coil is located between the base and the first baffle plate; two permanent magnets corresponding to each other are arranged in the base, and the two permanent magnets are respectively placed on both sides of the shaft rod; two armatures corresponding to each other are arranged in the base, and the two armatures are respectively placed on the other two sides of the shaft rod; a first through hole is arranged at the bottom of the base, and a second through hole is arranged on the first baffle plate, the shaft rod is hollow, one end of the shaft rod is connected to the first through hole, and the other end of the shaft rod is connected to the second through hole.

4. According to claim 3, the intelligent cut-off pressure reducing valve device is characterized in that: The electromagnet assembly also includes a moving iron core, a fixed iron core and a push rod; one end of the moving iron core is placed inside the shaft, and the other end of the moving iron core passes through the shaft and is placed outside the shaft; the bracket is provided with a third through hole at a position corresponding to the moving iron core, and the moving iron core is provided with a second baffle on one side of the third through hole.

5. The intelligent cut-off pressure reducing valve device according to claim 4, characterized in that: The frame is provided with a fourth through hole at a position corresponding to the second through hole, and the diameter of the fourth through hole is smaller than the diameter of the second through hole; one end of the fixed iron core is placed in the shaft and contacts the moving iron core, and the other end of the fixed iron core contacts the frame; One end of the push rod passes through the fixed iron core and is placed in the moving iron core, and the push rod is threadedly connected to the moving iron core; The other end of the push rod passes through the frame and is placed in the second valve body.

6. The intelligent cut-off pressure reducing valve device according to claim 4, characterized in that: A first cavity, a second cavity and a third cavity are arranged in the second valve body; the first cavity, the second cavity and the third cavity are relatively connected, and the second cavity and the third cavity are symmetrically positioned; a fourth cavity is arranged in the first valve body, and the fourth cavity is relatively connected to the second cavity.

7. An intelligent cut-off pressure reducing valve device according to claim 6, characterized in that: A cutting ball guide seat and a cutting ball are arranged in the third cavity; the cutting ball guide seat is connected to the push rod, and the cutting ball is placed on the cutting ball guide seat; the reset assembly includes a reset rod, one end of which is placed in the second cavity and above the cutting ball.

8. The intelligent cut-off pressure reducing valve device according to claim 7, characterized in that: Two first sealing rings are sequentially sleeved on the cutting ball guide seat, and the two first sealing rings are in conflict with the inner wall of the third cavity; a second sealing ring is arranged on the upper end of the cutting ball, and the second sealing ring is confined in the third cavity; the inner diameter of the second sealing ring is smaller than the diameter of the cutting ball.

9. The intelligent cut-off pressure reducing valve device according to claim 6, characterized in that: The tightening assembly includes a sealing nozzle, and the sealing nozzle is relatively communicated with the first cavity.

10. The intelligent cut-off pressure reducing valve device according to claim 1, characterized in that: The first valve body is also provided with a valve cover.

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