A pressure switch capable of setting the air pressure threshold of an air pump

Abstract

The present application discloses a pressure switch capable of setting the air pump pressure threshold, which relates to the technical field of pressure switches, and comprises a switch body, wherein the left end of the switch body is fixedly plugged with an air inlet pipe, a conductive block is fixedly arranged in the switch body, a telescopic component is movably arranged in the switch body, a conductive column is arranged on the side of the telescopic component close to the conductive block, the conductive column abuts against the conductive block, an exhaust hole is provided on the telescopic component and the switch body, a bell is arranged in the exhaust hole, and a first spring is fixedly sleeved on the telescopic component. In the present application, when the air pressure in the switch body is too high, the telescopic component is completely retracted, and at this time, the exhaust hole on the telescopic component coincides with the exhaust hole on the switch body, so that the air pressure is discharged through the exhaust hole, and the bell is driven to rotate and make a sound by the airflow, so as to warn the operator and make the operator adjust the device in time.

Description

Technical Field

[0001] The present application relates to the technical field of pressure switches, and in particular to a pressure switch capable of setting an air pump pressure threshold. Background Art

[0002] The gas pressure switch is a simple pressure control device. When the pressure of the measured gas reaches the rated value, the gas pressure switch can send a control signal. When the measured pressure exceeds the rated value, the free end of the elastic element will be displaced, pushing the switch element directly or after comparison, changing the on-off state of the switch element to achieve the purpose of controlling the measured pressure.

[0003] The existing patent (Announcement No.: CN212084907U) discloses a pressure switch for controlling the operation of an air pump, including an air pump, an air compressor inside the air pump, a pressure switch on one side of the air compressor, and a shell, a connecting pipe connected to the surface of one side of the shell, a first slider slidably connected to the inside of the shell near one end of the connecting pipe, and a conductive block fixedly connected to the end of the first slider away from the connecting pipe. In the process of implementing this solution, it was found that the following problems exist in the prior art and have not been well solved: the device automatically releases pressure when the pressure is too high, but it is difficult for the operator to find out in time when the device is automatically releasing pressure, and it is difficult to adjust the device in time. Utility Model Content

[0004] In order to improve the above-mentioned problem that the device automatically releases pressure when the pressure is too high, but it is difficult for the operator to detect in time when the device is automatically releasing pressure, and thus difficult to adjust the device in time, the present application provides a pressure switch that can set the air pump pressure threshold.

[0005] The present application provides a pressure switch capable of setting the air pump pressure threshold, which adopts the following technical solution:

[0006] A pressure switch capable of setting an air pump pressure threshold comprises a switch body, an air inlet pipe being fixedly inserted at the left end of the switch body, a conductive block being fixedly arranged in the switch body, a telescopic component being movably arranged in the switch body, a conductive column being arranged on the side of the telescopic component close to the conductive block, the conductive column being in contact with the conductive block, exhaust holes being provided on the telescopic component and the switch body, a bell being provided in the exhaust hole, a first spring being fixedly sleeved on the telescopic component, an end of the first spring being fixedly connected to the inner wall of the switch body at a distance from the telescopic component, and buffer components being provided on the outer sides of the four side walls and the four corners of the switch body.

[0007] Through the above technical solution, when the air pressure of the air pump increases, the pressure inside the switch body increases. At this time, the air pressure pushes the telescopic component to drive the conductive column to move, thereby causing the conductive column to separate from the conductive block and causing the air pump to shut down. When the air pressure inside the switch body is too high, the telescopic component is completely retracted. At this time, the exhaust hole on the telescopic component coincides with the exhaust hole on the switch body, thereby facilitating the discharge of the air pressure through the exhaust hole.

[0008] Optionally, in the above-mentioned pressure switch capable of setting an air pump pressure threshold, the telescopic assembly includes a cylinder, one end of the cylinder is fixedly connected to the switch body, the other end of the cylinder is movably sleeved with a movable cylinder, the end of the movable cylinder away from the cylinder is fixedly connected to a movable plate, one end of the first spring is fixedly connected to the right side of the movable plate, and the other end of the first spring is fixedly connected to the inner wall of the switch body.

[0009] Through the above technical solution, the first spring facilitates the movement of the movable plate and the conductive column, thereby causing the conductive column to contact the conductive block. When the air pressure of the air pump increases, the pressure in the switch body increases. At this time, the air pressure pushes the movable plate and the conductive column to move and separate from the conductive block.

[0010] Optionally, in the above-mentioned pressure switch capable of setting an air pump pressure threshold, the exhaust hole is opened on the top of the movable plate and the outer wall of the cylinder, and after the movable plate moves to the right, the axes of the exhaust hole on the movable plate, the cylinder and the switch body are located on the same axis.

[0011] Through the above technical solution, when the telescopic assembly is fully retracted, the axes of the movable plate, the cylinder and the exhaust hole on the switch body are located at the same axis, thereby causing the air pressure to be discharged through the exhaust hole.

[0012] Optionally, in the above-mentioned pressure switch capable of setting an air pump pressure threshold, a side of the conductive block close to the conductive column is provided with inserts having the same number as the conductive columns, and the conductive columns are inserted into the inserts to the left and abut against the conductive block.

[0013] Through the above technical solution, the insertion tube facilitates increasing the stability of the conductive column and the conductive block when they are in contact, thereby achieving circuit connectivity.

[0014] Optionally, in the above-mentioned pressure switch capable of setting an air pump pressure threshold, the bell component includes a rotating shaft and two fan blades, the rotating shaft is rotatably inserted into the exhaust hole, the two fan blades are symmetrically arranged on the outer wall of the rotating shaft, and a bell is arranged on the fan blades.

[0015] Through the above technical solution, when the airflow passes through the exhaust hole, the fan blades and the rotating shaft are driven to rotate, and at the same time, the fan blades drive the bell to rotate continuously and cause the bell to make a sound.

[0016] Optionally, in the above-mentioned pressure switch capable of setting an air pump pressure threshold, the buffer assembly includes a protective plate and a plurality of second springs, one end of each of the second springs is fixedly connected to the protective plate, and each of the second springs is fixedly connected to the switch body, and the protective plate is a hard rubber plate.

[0017] Through the above technical solution, the switch body is conveniently protected by the protective plate, and the protective plate is conveniently buffered by the second spring, thereby reducing the impact force on the switch body.

[0018] Optionally, in the above-mentioned pressure switch capable of setting an air pump pressure threshold, an airbag is fixedly plugged into the outer wall of the protective plate, and a plurality of air injection holes are provided on four side walls of the airbag.

[0019] Through the above technical solution, when the protective plate moves, the airbag is squeezed, and the airflow in the airbag is ejected through the jet hole, so that the dust on the switch body and the outer wall of the protective plate can be easily cleaned by the ejected airflow.

[0020] In summary, the present application includes at least one of the following beneficial effects: 1. When the air pressure in the switch body is too high, the telescopic assembly is completely retracted, and the exhaust hole on the telescopic assembly coincides with the exhaust hole on the switch body, so that the air pressure can be discharged through the exhaust hole, and the airflow drives the bell to rotate and make a sound, so as to warn the operator and make the operator adjust the device in time;

[0021] 2. When the protective plate moves, the airbag is squeezed, and the airflow in the airbag is ejected through the jet hole, so that the dust on the switch body and the outer wall of the protective plate can be blown away by the ejected airflow, making it easier to clean the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the present application;

[0023] Figure 2 It is a partial three-dimensional structural cross-sectional view of the present application;

[0024] Figure 3 It is a partial three-dimensional expanded structural cross-sectional view of the present application.

[0025] In the figure: 1. switch body; 2. air inlet pipe; 3. conductive block; 31. plug-in tube; 4. telescopic assembly; 41. cylinder; 42. movable cylinder; 43. movable plate; 5. conductive column; 6. exhaust hole; 7. bell piece; 71. rotating shaft; 72. fan blade; 73. bell; 8. first spring; 9. buffer assembly; 91. protective plate; 92. second spring; 93. air bag; 94. jet hole. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1-3 This application is described in further detail.

[0027] Please refer to the attached figure in the instruction manual Figure 1 , Figure 2 and Figure 3 The present application provides an embodiment: a pressure switch capable of setting an air pump pressure threshold, comprising a switch body 1, an air inlet pipe 2 being fixedly plugged into the left end of the switch body 1, through which airflow can enter the switch body 1.

[0028] A conductive block 3 is fixedly arranged in the switch body 1, and a telescopic component 4 is movably arranged in the switch body 1. A conductive column 5 is arranged on the side of the telescopic component 4 close to the conductive block 3, and the conductive column 5 abuts against the conductive block 3. The same number of insert tubes 31 as the conductive column 5 is arranged on the side of the conductive block 3 close to the conductive column 5. The conductive column 5 is inserted into the insert tube 31 to the left and abuts against the conductive block 3. The insert tube 31 facilitates the stability of the conductive column 5 when abutting against the conductive block 3, thereby realizing the connectivity of the circuit.

[0029] Both the telescopic component 4 and the switch body 1 are provided with an exhaust hole 6, and a bell member 7 is arranged in the exhaust hole 6. The bell member 7 includes a rotating shaft 71 and two fan blades 72. The rotating shaft 71 is rotatably inserted in the exhaust hole 6, and the two fan blades 72 are symmetrically arranged on the outer wall of the rotating shaft 71. A bell 73 is arranged on the fan blades 72. When the airflow passes through the exhaust hole 6, the fan blades 72 and the rotating shaft 71 are driven to rotate. At the same time, the fan blades 72 drive the bell 73 to rotate continuously and cause the bell 73 to make a sound, thereby facilitating the warning to the operator.

[0030] A first spring 8 is fixedly sleeved on the telescopic component 4, and one end of the first spring 8 away from the telescopic component 4 is fixedly connected to the inner wall of the switch body 1. The telescopic component 4 includes a cylinder 41, one end of the cylinder 41 is fixedly connected in the switch body 1, and the other end of the cylinder 41 is movably sleeved with a movable cylinder 42, and one end of the movable cylinder 42 away from the cylinder 41 is fixedly connected to a movable plate 43, one end of the first spring 8 is fixedly connected to the right side of the movable plate 43, and the other end of the first spring 8 is fixedly connected to the inner wall of the switch body 1. The first spring 8 is used to facilitate the movement of the movable plate 43 and the conductive column 5, thereby prompting the conductive column 5 to contact the conductive block 3. When the air pressure of the air pump increases, the pressure in the switch body 1 increases. At this time, the air pressure pushes the movable plate 43 and the conductive column 5 to move and separate from the conductive block 3, thereby facilitating the control of the air pump to shut down.

[0031] The exhaust hole 6 is provided at the top of the movable plate 43 and the outer wall of the cylinder 41. When the movable plate 43 moves to the right, the axes of the movable plate 43, the cylinder 41 and the exhaust hole 6 on the switch body 1 are located at the same axis. When the telescopic assembly 4 is fully retracted, the axes of the movable plate 43, the cylinder 41 and the exhaust hole 6 on the switch body 1 are located at the same axis, thereby causing the air pressure to be discharged through the exhaust hole 6.

[0032] Buffer components 9 are provided on the outer sides of the four side walls and the four corners of the switch body 1. The buffer component 9 includes a protective plate 91 and a plurality of second springs 92. One ends of the plurality of second springs 92 are fixedly connected to the protective plate 91, and the plurality of second springs 92 are fixedly connected to the switch body 1. The protective plate 91 is a hard rubber plate. The switch body 1 can be protected by the protective plate 91, and the protective plate 91 can be buffered by the second springs 92, thereby reducing the impact force on the switch body 1 and further reducing the possibility of damage to the switch body 1.

[0033] An airbag 93 is fixedly inserted into the outer wall of the protective plate 91, and a plurality of jet holes 94 are provided on the four side walls of the airbag 93. When the protective plate 91 moves, the airbag 93 is squeezed, and the airflow in the airbag 93 is ejected through the jet holes 94. The ejected airflow facilitates the cleaning of the dust on the switch body 1 and the outer wall of the protective plate 91, making it more convenient to clean the device.

[0034] Working principle: When using the pressure switch with a settable air pump pressure threshold, when the air pump pressure increases, the pressure inside the switch body 1 increases, and at this time, the air pressure pushes the telescopic component 4 to drive the conductive column 5 to move, thereby causing the conductive column 5 to separate from the conductive block 3 and causing the air pump to shut down;

[0035] And when the air pressure in the switch body 1 is too high, the telescopic component 4 is completely retracted. At this time, the exhaust hole 6 on the telescopic component 4 coincides with the exhaust hole 6 on the switch body 1, so that the air pressure can be discharged through the exhaust hole 6, and the airflow drives the bell 7 to rotate and make a sound, so as to warn the operator.

[0036] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A pressure switch capable of setting an air pump pressure threshold, comprising a switch body (1), characterized in that: An air inlet pipe (2) is fixedly inserted at the left end of the switch body (1), a conductive block (3) is fixedly arranged inside the switch body (1), a telescopic component (4) is movably arranged inside the switch body (1), a conductive column (5) is arranged on a side of the telescopic component (4) close to the conductive block (3), the conductive column (5) is in contact with the conductive block (3), an exhaust hole (6) is provided on the telescopic component (4) and the switch body (1), a bell (7) is arranged in the exhaust hole (6), a first spring (8) is fixedly sleeved on the telescopic component (4), an end of the first spring (8) away from the telescopic component (4) is fixedly connected to the inner wall of the switch body (1), and buffer components (9) are arranged on the outer sides of the four side walls and at the four corners of the switch body (1).

2. The pressure switch capable of setting the air pump pressure threshold according to claim 1, characterized in that: The telescopic assembly (4) comprises a cylinder (41), one end of the cylinder (41) is fixedly connected in the switch body (1), the other end of the cylinder (41) is movably sleeved with a movable cylinder (42), the end of the movable cylinder (42) away from the cylinder (41) is fixedly connected to a movable plate (43), one end of the first spring (8) is fixedly connected to the right side of the movable plate (43), and the other end of the first spring (8) is fixedly connected to the inner wall of the switch body (1).

3. The pressure switch capable of setting the air pump pressure threshold according to claim 2, characterized in that: The exhaust hole (6) is formed on the top of the movable plate (43) and the outer wall of the cylinder (41). When the movable plate (43) moves to the right, the axes of the exhaust hole (6) on the movable plate (43), the cylinder (41) and the switch body (1) are located at the same axis.

4. The pressure switch capable of setting an air pump pressure threshold according to claim 1, characterized in that: The conductive block (3) is provided with an insert tube (31) having the same number as the conductive columns (5) on one side thereof close to the conductive columns (5); the conductive columns (5) are inserted into the insert tubes (31) to the left and abut against the conductive block (3).

5. The pressure switch capable of setting the air pump pressure threshold according to claim 1, characterized in that: The bell member (7) comprises a rotating shaft (71) and two fan blades (72); the rotating shaft (71) is rotatably inserted into the exhaust hole (6); the two fan blades (72) are symmetrically arranged on the outer wall of the rotating shaft (71); and a bell (73) is arranged on the fan blades (72).

6. The pressure switch capable of setting the air pump pressure threshold according to claim 1, characterized in that: The buffer assembly (9) comprises a protective plate (91) and a plurality of second springs (92), one end of each of the plurality of second springs (92) being fixedly connected to the protective plate (91), and each of the plurality of second springs (92) being fixedly connected to the switch body (1), and the protective plate (91) being a hard rubber plate.

7. The pressure switch capable of setting the air pump pressure threshold according to claim 6, characterized in that: An air bag (93) is fixedly inserted into the outer wall of the protective plate (91), and four side walls of the air bag (93) are each provided with a plurality of air injection holes (94).

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