Pressure regulating device of magnetic valve

Abstract

The utility model provides a pressure regulating device for a magnetic valve. The pressure regulating device comprises an exhaust pipe, the magnetic valve comprises a cover body which covers the top end of the exhaust pipe and is in sliding connection with the exhaust pipe, an exhaust hole penetrating through the cover body, a silica gel tip cone installed and fixed in the cover body and a magnet fixed in the cover body; the silica gel tip cone abuts against a top opening of the exhaust pipe, and the magnets surround the exhaust pipe at intervals. The vertical adjusting device is sleeved on the exhaust pipe and is in sliding connection with the exhaust pipe in a manner of moving back and forth along the axial direction of the exhaust pipe; the metal pressure regulating plate is fixed on the vertical regulating device, is separated from the magnetic valve and is vertical to the exhaust pipe; the vertical adjusting device moves along the exhaust pipe and is used for adjusting the distance between the metal pressure adjusting plate and the magnet. Compared with the prior art, the magnetic valve pressure regulating device is simple in structure and higher in stability.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration equipment, in particular to a magnetic valve pressure regulating device used for leakage of evaporator and condenser of refrigeration equipment. Background Art

[0002] In existing cooking appliances, such as electric pressure cookers, the pressure regulating device is generally a solenoid valve assembly, which uses the principle that the magnetic valve and the electromagnetic suction cup can generate both suction and repulsion to achieve stepless adjustment of the pressure limit value of the electric pressure cooker.

[0003] The solenoid valve assembly usually includes a permanent magnet valve, an exhaust rod, an electromagnetic coil, etc., and generates magnetic force between the permanent magnet valve and the metal sheet set on the electromagnetic coil, so as to make the silicone top cone in the permanent magnet valve contact and seal with the top port of the exhaust rod to complete the pressure increase in the container, and then the electromagnetic coil generates a repulsive force with the same polarity as the permanent magnet valve, and the magnitude of the repulsive force is controlled by controlling the voltage of the electromagnetic coil, thereby controlling the high and low pressure conversion in the container. However, in the high-pressure device of the prior art, the structure of the electromagnetic valve assembly is relatively complex, resulting in relatively high costs, and the stability of the electromagnetic coil control method is flawed.

[0004] Therefore, it is necessary to provide a new magnetic valve pressure regulating device to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a magnetic valve pressure regulating device with simple structure and good stability.

[0006] In order to solve the above technical problems, the utility model provides a magnetic valve pressure regulating device, comprising:

[0007] Exhaust pipe;

[0008] A magnetic valve, the magnetic valve comprising a cover body which is covered on the top end of the exhaust pipe and is slidably connected to the exhaust pipe, an exhaust hole penetrating the cover body, a silicone top cone which is fixed in the cover body, and a magnet which is fixed in the cover body; the silicone top cone abuts against the top end opening of the exhaust pipe, and the magnet is arranged around the exhaust pipe at intervals;

[0009] A vertical adjustment device, the vertical adjustment device is sleeved on the exhaust pipe and forms a sliding connection with the exhaust pipe to move back and forth along the axial direction thereof; and

[0010] A metal pressure regulating plate, the metal pressure regulating plate is fixed to the vertical adjustment device and spaced apart from the magnetic valve, the metal pressure regulating plate is arranged perpendicular to the exhaust pipe; the vertical adjustment device moves along the exhaust pipe to adjust the distance between the metal pressure regulating plate and the magnet.

[0011] Preferably, the vertical adjustment device includes an adjusting screw and a through hole passing through the adjusting screw along the axial direction of the adjusting screw, the exhaust pipe passes through the through hole and the adjusting screw is sleeved and fixed on the exhaust pipe; the metal pressure regulating plate includes a cylindrical column, an internal thread arranged on the inner circumference of the column, and a ring-shaped plate extending radially outward from one end of the column close to the magnet; the column is sleeved on the adjusting screw and forms a threaded connection.

[0012] Preferably, a protruding limiting ring is provided on the outer periphery of the exhaust pipe, and the magnetic valve and the metal pressure regulating plate are respectively located on opposite sides of the limiting ring; when the cover body and the metal pressure regulating plate are respectively abutted and supported on the top and bottom surfaces of the limiting ring, the silicone top cone abuts against the top opening of the exhaust pipe and forms a seal.

[0013] Preferably, the magnet is ring-shaped and is disposed close to the opening end of the cover body.

[0014] Preferably, the metal pressure regulating plate is annular and sleeved on the exhaust pipe, and the metal pressure regulating plate is fixed to a side of the vertical adjustment device close to the magnetic valve.

[0015] Preferably, the orthographic projection of the magnet along the axial direction of the exhaust pipe onto the metal voltage regulating plate completely falls on the metal voltage regulating plate.

[0016] Compared with the prior art, the magnetic valve pressure regulating device of the utility model is provided with a magnet in the magnetic valve, and is provided with a vertical regulating device slidably connected to the exhaust pipe and a metal pressure regulating plate fixed on the vertical regulating device. By adjusting the movement of the vertical regulating device on the exhaust pipe, the distance between the metal pressure regulating plate and the magnet is adjusted, thereby controlling the magnetic attraction between the two to adjust the contact force between the silicone top cone and the exhaust pipe, so as to achieve the purpose of adjusting the air pressure. The mechanical adjustment movement of the vertical regulating device on the exhaust pipe makes its structure simpler, thereby reducing the production cost, and the stability of the mechanical adjustment is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is described in detail below in conjunction with the accompanying drawings. Through the detailed description made in conjunction with the following drawings, the above and other aspects of the utility model will become clearer and easier to understand.

[0018] In the figure:

[0019] Figure 1 The structure diagram of the magnetic valve pressure regulating device of the utility model is shown in FIG. Figure 1 ;

[0020] Figure 2 The structure diagram of the magnetic valve pressure regulating device of the utility model is shown in FIG. Figure 2 ;

[0021] Figure 3 The figure is a schematic diagram of the structure of an embodiment of the magnetic valve pressure regulating device of the utility model. DETAILED DESCRIPTION

[0022] The specific implementation of the present utility model is described in detail below with reference to the accompanying drawings.

[0023] The specific implementation modes / examples described herein are specific implementation modes of the present utility model, which are used to illustrate the concept of the present utility model, are explanatory and exemplary, and should not be interpreted as limiting the implementation modes of the present utility model and the scope of the present utility model. In addition to the examples described herein, those skilled in the art can also adopt other obvious technical solutions based on the contents disclosed in the claims and the specification of this application, and these technical solutions include any obvious replacement and modification of the embodiments described herein, which are within the protection scope of the present utility model.

[0024] The following descriptions of the embodiments refer to the attached drawings to illustrate specific embodiments of the present invention. Directional terms mentioned in the present invention, such as up, down, front, back, left, right, inside, outside, side, etc., are only referenced to the directions of the attached drawings. Therefore, the directional terms used are used to illustrate and understand the present invention, but are not used to limit the present invention.

[0025] Please refer to Figure 1-2 As shown, the utility model provides a magnetic valve pressure regulating device 100, comprising: an exhaust pipe 1, a magnetic valve 2, a vertical regulating device 3, and a metal pressure regulating plate 4.

[0026] The exhaust pipe 1 is used to be fixed on a gas container, such as a lid of a pressure cooker.

[0027] The magnetic valve 2 includes a cover body 21 that is covered on the top end of the exhaust pipe 1 and forms a sliding connection with the exhaust pipe 1, an exhaust hole 22 that passes through the cover body 21, a silicone top cone 23 installed and fixed in the cover body 21, and a magnet 24 fixed in the cover body 21.

[0028] The silicone top cone 23 abuts against the top opening of the exhaust pipe 1 to control the exhaust volume of the exhaust pipe 1. The greater the contact pressure of the silicone top cone 23, the smaller the exhaust volume of the exhaust pipe 1, and vice versa, the greater the exhaust volume, and the exhausted gas flows out through the lifting gas pipe 22.

[0029] The magnets 24 are disposed at intervals around the exhaust pipe 1. In this embodiment, the magnets 24 are annular and are disposed close to the opening end of the cover 21.

[0030] The vertical adjustment device 3 is sleeved on the exhaust pipe 1 and forms a sliding connection with the exhaust pipe 1 so as to move back and forth along the axial direction thereof.

[0031] The metal pressure regulating plate 4 is fixed to the vertical regulating device 3 and is spaced apart from the magnetic valve 2 . The metal pressure regulating plate 4 is arranged perpendicular to the exhaust pipe 1 .

[0032] In this embodiment, the metal pressure regulating plate 4 is annular and sleeved on the exhaust pipe 1 .

[0033] The vertical adjustment device 3 moves along the exhaust pipe 1, thereby driving the metal pressure regulating plate 4 to move synchronously, so as to adjust the distance between the metal pressure regulating plate 4 and the magnet 24. Figure 1 As shown in FIG. 1 , the larger the distance between the metal pressure regulating plate 4 and the magnet 24, the smaller the magnetic attraction between the two, so that the contact force between the silicone top cone 23 and the top opening of the exhaust pipe 1 is smaller, the exhaust resistance of the exhaust pipe 1 is smaller, the exhaust volume is large, and the pressure in the pressure cooker is reduced; Figure 2 As shown, the smaller the distance between the metal pressure regulating plate 4 and the magnet 24, the greater the magnetic attraction between the two, so that the contact force between the silicone top cone 23 and the top opening of the exhaust pipe 1 is greater, the exhaust resistance of the exhaust pipe 1 is greater, the exhaust volume is small, and the pressure in the pressure cooker is increased. Thus, the pressure level control is achieved. The mechanical control method of the vertical adjustment device 3 makes its structure simpler and the production cost lower, and the mechanical adjustment control has stronger anti-interference and higher stability than the electromagnetic coil adjustment method.

[0034] In this embodiment, a protruding limiting ring 11 is provided on the outer periphery of the exhaust pipe 1, and the magnetic valve 2 and the metal pressure regulating plate 4 are respectively located on opposite sides of the limiting ring 11. When the cover 21 and the metal pressure regulating plate 4 are respectively supported on the top surface and the bottom surface of the limiting ring 11, the silicone top cone 23 is in contact with the top opening of the exhaust pipe 1 and forms a seal, that is, at this time, the distance between the metal pressure regulating plate 4 and the magnet 24 is the smallest, so that the contact force between the silicone top cone 23 and the top opening of the exhaust pipe 1 is the largest, and the exhaust pipe 1 is equivalent to being sealed, so that the pressure in the pressure cooker increases rapidly, such as Figure 2 The setting of the limiting ring 11 makes the magnetic valve 1 and the metal pressure regulating plate 4 more stable and more reliable when they are adjusted and separated.

[0035] The magnet 24 is arranged near the open end of the cover body 21, and the metal pressure regulating plate 4 is fixed to the side of the vertical adjustment device 3 close to the magnetic valve 2, so that the mutual magnetic attraction between the magnet 24 and the metal pressure regulating plate 4 can reach the maximum value. Under the premise of the same magnetic attraction requirement, its size can be made smaller to save cost.

[0036] In this embodiment, the vertical adjustment device 3 is specifically implemented as follows: Figure 3 As shown, the vertical adjustment device 3 includes an adjustment screw 31 and a through hole 32 that penetrates the adjustment screw 31 along the axial direction thereof. The exhaust pipe 1 passes through the through hole 32 and the adjustment screw 31 is sleeved and fixed on the exhaust pipe 1. The top of the adjustment screw 31 abuts against the lower side of the limit ring 11. The metal pressure regulating plate 4 includes a cylindrical column 41, an internal thread 42 arranged on the inner circumference of the column 41, and a ring-shaped plate 43 extending radially outward from one end of the column 41 close to the magnet 24. The column 31 abuts against the lower side of the limit ring 11. The column 41 is sleeved on the adjustment screw 31 and forms a screw connection. The metal pressure regulating plate 4 can be moved up and down by rotating the metal pressure regulating plate 4 forward and backward, thereby realizing the spacing between the metal pressure regulating plate 4 and the magnet 24.

[0037] More preferably, the orthographic projection of the magnet 24 along the axial direction of the exhaust pipe 1 to the metal pressure regulating plate 4 completely falls on the metal pressure regulating plate 4, so that the utilization rate of the magnet 24 can be higher and its magnetic attraction can be fully exerted.

[0038] Compared with the prior art, the magnetic valve pressure regulating device of the utility model is provided with a magnet in the magnetic valve, and is provided with a vertical regulating device slidably connected to the exhaust pipe and a metal pressure regulating plate fixed on the vertical regulating device. By adjusting the movement of the vertical regulating device on the exhaust pipe, the distance between the metal pressure regulating plate and the magnet is adjusted, thereby controlling the magnetic attraction between the two to adjust the contact force between the silicone top cone and the exhaust pipe, so as to achieve the purpose of adjusting the air pressure. The mechanical adjustment movement of the vertical regulating device on the exhaust pipe makes its structure simpler, thereby reducing the production cost, and the stability of the mechanical adjustment is higher.

[0039] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A magnetic valve pressure regulating device, characterized in that: include: Exhaust pipe; A magnetic valve, the magnetic valve comprising a cover body which is covered on the top end of the exhaust pipe and is slidably connected to the exhaust pipe, an exhaust hole penetrating the cover body, a silicone top cone which is fixed in the cover body, and a magnet which is fixed in the cover body; the silicone top cone abuts against the top end opening of the exhaust pipe, and the magnet is arranged around the exhaust pipe at intervals; A vertical adjustment device, the vertical adjustment device is sleeved on the exhaust pipe and forms a sliding connection with the exhaust pipe to move back and forth along the axial direction thereof; and A metal pressure regulating plate, the metal pressure regulating plate is fixed to the vertical adjustment device and spaced apart from the magnetic valve, the metal pressure regulating plate is arranged perpendicular to the exhaust pipe; the vertical adjustment device moves along the exhaust pipe to adjust the distance between the metal pressure regulating plate and the magnet.

2. The magnetic valve pressure regulating device according to claim 1, characterized in that: The vertical adjustment device includes an adjusting screw and a through hole extending axially through the adjusting screw, the exhaust pipe passes through the through hole and the adjusting screw is sleeved and fixed on the exhaust pipe; the metal pressure regulating plate includes a cylindrical column, an internal thread arranged on the inner circumference of the column, and an annular plate extending radially outward from one end of the column close to the magnet; the column is sleeved on the adjusting screw and forms a threaded connection.

3. The magnetic valve pressure regulating device according to claim 1, characterized in that: A protruding limiting ring is provided on the outer periphery of the exhaust pipe, and the magnetic valve and the metal pressure regulating plate are respectively located on opposite sides of the limiting ring; when the cover body and the metal pressure regulating plate are respectively abutted and supported on the top surface and bottom surface of the limiting ring, the silicone top cone abuts against the top opening of the exhaust pipe and forms a seal.

4. The magnetic valve pressure regulating device according to claim 1, characterized in that: The magnet is ring-shaped and is arranged close to the opening end of the cover body.

5. The magnetic valve pressure regulating device according to claim 4, characterized in that: The metal pressure regulating plate is annular and sleeved on the exhaust pipe. The metal pressure regulating plate is fixed on a side of the vertical regulating device close to the magnetic valve.

6. The magnetic valve pressure regulating device according to claim 1, characterized in that: The orthographic projection of the magnet along the axial direction of the exhaust pipe onto the metal pressure regulating plate completely falls on the metal pressure regulating plate.

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