Vacuum breaking switch
By introducing a vacuum breaking switch structure into the vacuum switch and utilizing the coordination of the vacuum breaking hole and the vent hole, the problem of instantaneous noise when the vacuum switch is closed is solved, and noiseless vacuum closing is achieved.
Patent Information
- Application Number
- CN202511091945.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-05
- Publication Date
- 2025-09-23
AI Technical Summary
The vacuum switch produces a harsh noise at the moment of closing due to the high air flow rate.
A vacuum breaker switch is designed. By arranging a vacuum access port, a slow exhaust hole, a spring, a rubber pad and a vacuum breaker hole on the switch cover, the suction force of the vacuum breaker hole and the vent hole are used to reduce the air flow speed and avoid noise.
The vacuum switch is made noiseless when closed, which improves the convenience of closing the vacuum switch.
Smart Images
Figure CN120684546A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of vacuum switches, in particular to a vacuum breaking switch. Background Art
[0002] Due to the terrain of some residents and local environmental protection requirements, the concept of vacuum suction of sewage began to be used. However, due to the physical structure of the vacuum switch during vacuum suction of sewage, the vacuum switch will produce a very harsh sound at the moment the vacuum is closed due to the high airflow rate and the time it takes to close the vacuum switch. Therefore, a vacuum destruction switch was designed. Summary of the Invention
[0003] In response to the shortcomings of the existing technology, the present invention provides a vacuum breaker switch, which solves the problem of noise generated by airflow passing through a narrow gap when the vacuum is turned on and off in a vacuum field. The switch can destroy the vacuum, making it easier to turn off the vacuum. This solves the problem that the vacuum switch will produce a very harsh noise at the moment the vacuum is turned off due to the high airflow velocity and the time required to turn off the vacuum switch.
[0004] In order to achieve the above-mentioned purpose of easier closing of vacuum, the present invention provides the following technical solution: a vacuum breaking switch, comprising a switch cover 1, characterized in that: a vacuum access port 5 is opened at the top port of the switch cover 1, a slow exhaust hole 6 is opened on the upper surface of the switch cover 1, a spring 2 is installed at the bottom of the switch cover 1, a rubber pad 3 is installed at the lower end of the spring 2, a rubber plug 7 is installed at the bottom of the rubber pad 3, a lower sealing layer 8 is installed on the outer wall of the rubber pad 3, a switch base 4 is adhered to the outer wall of the lower sealing layer 8, a vacuum breaking hole 10 is opened at the bottom of the switch base 4, and a vent hole 9 is opened on the outer wall of the switch base 4.
[0005] Preferably, the rubber pad 3 forms a telescopic structure with the switch base 4 through the spring 2 .
[0006] Preferably, the switch base 4 is connected to the vent hole 9 through the vacuum breaking hole 10 .
[0007] Preferably, the aperture of the vacuum inlet 5 is larger than the aperture of the slow exhaust hole 6 .
[0008] Compared with the prior art, the present invention provides a vacuum breaker with the following advantages: When the vacuum breaking switch is working, the vacuum breaking hole 10 of the switch base 4 will have a vacuum suction force acting on the rubber pad 3, but the slow exhaust hole (6) of the switch cover 1 also destroys a part of the vacuum. However, the aperture of the vacuum breaking hole 10 of the switch cover 1 is much larger than the slow exhaust hole (6), so the suction force acting on the rubber pad 3 will become larger and larger. However, there is always a moment when the suction force of the rubber pad 3 will be greater than the elastic force of the spring 3. At this time, the lower sealing layer 8 of the rubber pad 3 will separate from the vacuum breaking hole 10 of the switch base 4. At this time, the vacuum will pass through the vent hole 9 of the switch base 4, so that the vacuum is destroyed. The vacuum switch will be easy to close and no noise will be generated, avoiding the problem of a very harsh sound when the air flow flows through the vacuum switch at the moment of closing. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 It is a schematic diagram of the structure of the present invention; In the figure: 1. Switch cover; 2. Spring; 3. Rubber pad; 4. Switch base; 5. Vacuum inlet; 6. Slow exhaust hole; 7. Rubber plug; 8. Lower sealing layer; 9. Vent hole; 10. Vacuum breaker hole. DETAILED DESCRIPTION
[0010] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0011] See also Figure 1, a vacuum breaker switch includes a switch cover, characterized in that: a vacuum access port is opened at the top port of the switch cover, a slow exhaust hole is opened on the upper surface of the switch cover, a spring is installed at the bottom of the switch cover, a rubber pad is installed at the lower end of the spring, a rubber plug is installed at the bottom of the rubber pad, a lower sealing layer is installed on the outer wall of the rubber pad, the outer wall of the lower sealing layer is attached to the switch base, a vacuum breaker hole is opened at the bottom of the switch base, a vent hole is opened on the outer wall of the switch base, and the rubber pad forms a telescopic structure between the spring and the switch base. The switch base is connected to the vent hole through the vacuum breaking hole. The aperture of the air connection entrance is larger than the aperture of the slow exhaust hole. The vacuum breaking hole of the switch base will have a vacuum suction force acting on the rubber pad. The slow exhaust hole of the switch cover also destroys part of the vacuum. The aperture of the vacuum breaking hole of the switch cover is larger than the slow exhaust hole, so the suction force acting on the rubber pad will increase. However, when the load is full, the suction force of the rubber pad will be greater than the elastic force of the spring. At this time, the lower sealing layer of the rubber pad will separate from the vacuum breaking hole of the switch base. At this time, the vacuum will pass through the vent hole of the switch base, and the vacuum will be destroyed.
[0012] The electrical components mentioned in this article are all electrically connected to an external main controller and a V mains supply, and the main controller can be a conventional known device such as a computer that performs control.
[0013] During use, the vacuum breaking hole in the switch base will exert vacuum suction on the rubber pad, but the slow exhaust hole in the switch cover will also destroy part of the vacuum. However, the aperture of the vacuum breaking hole in the switch cover is much larger than the slow exhaust hole, so the suction acting on the rubber pad will become larger and larger. However, there is always a moment when the suction of the rubber pad will be greater than the elastic force of the spring. At this time, the lower sealing layer of the rubber pad will separate from the vacuum breaking hole in the switch base. At this time, the vacuum will pass through the vent hole in the switch base, and the vacuum will be destroyed.
[0014] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.
[0015] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.
Claims
1. A vacuum breaker switch, comprising a switch cover (1), characterized in that: The top port of the switch cover (1) is provided with a vacuum inlet (5), the upper surface of the switch cover (1) is provided with a slow exhaust hole (6), the bottom of the switch cover (1) is provided with a spring (2), the lower end of the spring (2) is provided with a rubber pad (3), the bottom of the rubber pad (3) is provided with a rubber plug (7), the outer wall of the rubber pad (3) is provided with a lower sealing layer (8), the outer wall of the lower sealing layer (8) is adhered to the switch base (4), the bottom of the switch base (4) is provided with a vacuum breaking hole (10), and the outer wall of the switch base (4) is provided with a vent hole (9).
2. A vacuum breaker switch according to claim 1, characterized in that: The rubber pad (3) forms a telescopic structure between the spring (2) and the switch base (4).
3. A vacuum breaker switch according to claim 1, characterized in that: The switch base (4) is connected to the vent hole (9) via the vacuum breaking hole (10).
4. A vacuum breaker switch according to claim 1, characterized in that: The aperture of the vacuum inlet (5) is larger than the aperture of the slow exhaust hole (6).