Pressure switch for fabric cleaning machine

Abstract

The utility model discloses a pressure switch for a fabric cleaning machine. The shell is provided with an assembling groove, the assembling pipe is inserted into an inner cavity of the assembling groove, the water inlet pipe is communicated with the assembling pipe and arranged at the top end of the assembling pipe, the abutting column is movably arranged in the inner cavity of the assembling pipe, the spring is arranged on the abutting column in a sleeving mode, the microswitch is arranged in an inner cavity of the shell, and the switch plate is elastically arranged on the microswitch. The round hole is formed in the top end of the shell and used for the abutting column to penetrate through; the abutting column is elastically arranged in the assembling pipe through a spring. When water flow is connected into the water inlet pipe, the abutting column moves downwards through water pressure to compress the spring, one end of the abutting column penetrates through the round hole to press the switch plate, and the microswitch is turned off. When no water flow exists in the water inlet pipe, the abutting column automatically resets through springback of the spring, so that the switch plate automatically rebounds and resets, and the microswitch is turned on. According to the utility model, the abutting column is driven by water pressure to press the microswitch, so that power-off and starting are realized, and the convenience of the embodiment is improved.

Description

Technical Field

[0001] The utility model relates to the field of cleaning equipment, in particular to a pressure switch used for a fabric cleaning machine. Background Art

[0002] Fabric cleaning machines are used to clean fabric furniture and other fabric items efficiently and hygienically. Such equipment usually combines a high-pressure water spray system, a rotating brush system and a powerful suction motor to completely remove stains and dust from the fabric surface. Its working principle is mainly to spray a mixture of detergent and water on the fabric surface, use a rotating brush to brush off the stains and dust, and suck these dirt away through a suction motor. Such a cleaning process can not only effectively remove stains, but also sterilize and disinfect, making fabric furniture cleaner and more hygienic. However, most of the fabric cleaning machines in the prior art are not equipped with a pressure switch, resulting in the equipment being unable to automatically adjust according to the change in water pressure during the cleaning process, unable to monitor the water pressure inside the equipment in real time, and automatically turn on or off the water spray system when the water pressure reaches the preset value. This not only affects the cleaning effect, but may also cause damage to the fabric material. Secondly, even if some fabric cleaning machines are equipped with a pressure switch, these switches often have the problems of large size and high cost. The bulky pressure switch not only increases the overall size and weight of the equipment, making the equipment bulky and unportable, but also takes up valuable storage space. For home users, this means that they need to make more space for the device, which undoubtedly increases the inconvenience of use. In addition, the high-cost pressure switch also increases the manufacturing cost of the device, resulting in an increase in the sales price, which may not be very friendly to ordinary consumers.

[0003] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Utility Model Content

[0004] The purpose of the utility model is to provide a pressure switch for a fabric washing machine which can effectively solve the above technical problems.

[0005] In order to achieve the purpose of this utility model, the following technical solutions are adopted:

[0006] A pressure switch for a fabric washing machine, characterized in that it comprises a shell with an assembly groove, an assembly pipe inserted into the inner cavity of the assembly groove, a water inlet pipe interconnected with the assembly pipe and arranged at the top of the assembly pipe, an abutment column movably arranged in the inner cavity of the assembly pipe, a spring sleeved on the abutment column, a micro switch arranged in the inner cavity of the shell, a switch plate elastically arranged on the micro switch, and a circular hole arranged at the top of the shell and used for the abutment column to pass through; wherein the abutment column is elastically arranged in the assembly pipe by the spring;

[0007] When the water inlet pipe is connected to the water flow, the abutment column moves downward by the water pressure to compress the spring, and one end of the abutment column passes through the circular hole to press the switch plate, and the micro switch is closed;

[0008] When there is no water flow in the water inlet pipe, the abutment column automatically returns to its original position through spring rebound, so that the switch plate automatically rebounds to its original position and the micro switch is turned on.

[0009] Furthermore, the water inlet pipe and the assembly pipe are an integrated structure, and the assembly pipe is provided with an opening for communicating with the water inlet pipe, and the cross-sectional length of the opening close to one end of the assembly pipe is smaller than the cross-sectional length away from one end of the assembly pipe.

[0010] Furthermore, a fixing block is provided at the top end of the abutting column, one end of the spring abuts against one end of the fixing block, and the other end of the spring abuts against the bottom end of the inner cavity of the assembly groove.

[0011] Furthermore, an annular fixing groove is provided on the circumference of the fixing block, a rubber ring is sleeved on the fixing groove, and the rubber ring abuts against the inner cavity of the assembly tube.

[0012] Furthermore, the cross-sectional shape of the fixing block is circular, and the cross-sectional diameter of the fixing block is larger than the cross-sectional diameter of the abutting column.

[0013] Furthermore, the cross-sectional shape of the abutment column is circular, and the cross-sectional diameter of the abutment column is smaller than the diameter of the circular hole.

[0014] Furthermore, a plurality of connecting columns for clamping the spring are evenly arranged on one end of the abutting column close to the fixing block.

[0015] Furthermore, a buckle block is provided on the outer wall of the assembly pipe, a buckle interface for cooperating and engaging with the buckle block is provided on the assembly groove, and a slope is provided on one end of the buckle block away from the water inlet pipe.

[0016] Furthermore, there is a gap between the switch plate and the micro switch, a buffer plate is provided at the upper end of the switch plate, and an angle of 5° to 15° exists between the buffer plate and the switch plate; wherein both the switch plate and the buffer plate are metal copper plates.

[0017] Furthermore, the housing is provided with a mounting groove for assembling the micro switch, and the inner cavity of the mounting groove is provided with a plurality of clamping blocks and clamping members for clamping the micro switch.

[0018] Compared with the prior art, the utility model has the following beneficial effects: the utility model drives the abutment column to press the micro switch through the water flow pressure, thereby realizing power off and start-up, and improving the convenience of this embodiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0020] Figure 1 It is a three-dimensional diagram of the utility model.

[0021] Figure 2 It is an exploded view of the utility model.

[0022] Figure 3 It is the first cross-sectional view of the present utility model.

[0023] Figure 4 It is the second cross-sectional view of the present utility model.

[0024] In the figure: 1. housing; 2. assembly pipe; 3. water inlet pipe; 4. abutment column; 5. spring; 6. micro switch; 7. switch plate; 8. assembly groove; 9. installation groove; 10. round hole; 11. fixing block; 12. fixing groove; 13. rubber ring; 14. opening; 15. connecting column; 16. buckle block; 17. buckle interface; 18. inclined surface; 19. buffer plate; 20. clamping block; 21. clamping piece. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below. Obviously, the described embodiments are partial embodiments of the utility model, rather than all embodiments.

[0026] In the description of the present utility model, it should be understood that the terms "center", "lateral", "longitudinal", "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" 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 utility model 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 limiting the scope of protection of the present utility model. When a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a centered component. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centered component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a centered component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0027] like Figures 1 to 4As shown, a pressure switch for a fabric washing machine comprises a shell 1 with an assembly groove 8, an assembly pipe 2 inserted into the inner cavity of the assembly groove 8, a water inlet pipe 3 interconnected with the assembly pipe 2 and arranged at the top end of the assembly pipe 2, an abutment column 4 movably arranged in the inner cavity of the assembly pipe 2, a spring 5 sleeved on the abutment column 4, a micro switch 6 arranged in the inner cavity of the shell 1, a switch plate 7 elastically arranged on the micro switch 6, and a circular hole 10 arranged at the top end of the shell 1 and used for the abutment column 4 to pass through; wherein, the abutment column 4 is elastically arranged in the assembly pipe 2 by the spring 5; when the water inlet pipe 3 is connected to water flow, the abutment column 4 moves downward by water pressure to compress the spring 5, and one end of the abutment column 4 passes through the circular hole 10 to press the switch plate 7, and the micro switch 6 is closed; when there is no water flow in the water inlet pipe 3, the abutment column 4 is automatically reset by the rebound of the spring 5, so that the switch plate 7 automatically rebounds and resets, and the micro switch 6 is turned on.

[0028] like Figures 1 to 4 As shown, the cross-sectional diameter of the abutting column 4 is smaller than the diameter of the circular hole 10, and the circular hole 10 is communicated with the inner cavity of the shell 1; it should be further explained that a fixing block 11 is provided at the top of the abutting column 4, one end of the spring 5 abuts against the fixing block 11, and the other end of the spring 5 abuts against the bottom end of the inner cavity of the assembly groove 8, and the cross-sectional shape of the fixing block 11 is circular, and the cross-sectional diameter of the fixing block 11 is larger than the cross-sectional diameter of the abutting column 4; in this embodiment, the spring 5 is sleeved on the abutting column 4, and the assembly tube 2 is inserted into the assembly groove 8, so that one end of the spring 5 abuts on the fixing block 11, and the other end of the spring 5 abuts against the bottom end of the inner cavity of the assembly groove 8. In actual use, During the process, water flows into the assembly pipe 2 through the water inlet pipe 3, and the water flows at the top of the fixed block 11. The fixed block 11 moves vertically downward through the pressure of the water flow and compresses the spring 5, so that one end of the abutment column 4 can pass through the circular hole 10 and abut on the switch plate 7, thereby completing the power off of the micro switch 6; when the liquid-free water in the water inlet pipe 3 flows through, the water pressure on the abutment column 4 decreases until it disappears, so that the spring 5 rebounds through the elastic force, and the abutment column 4 returns to its original position through the spring 5, causing one end of the abutment column 4 to be away from the switch plate of the micro switch 6; through the mutual cooperation between the spring 5 and the abutment column 4, the structure is simple and convenient to achieve power off, and the cost is low.

[0029] An annular fixing groove 12 is provided on the circumference of the fixing block 11, and a rubber ring 13 is sleeved on the fixing groove 12, and the rubber ring 13 and the inner cavity of the assembly tube 2 are in contact with each other; in this embodiment, the rubber ring 13 is sleeved and clamped on the side of the fixing block 11 through the fixing groove 12, so that the fixing block 11 is tightly in contact with the inner cavity of the assembly tube 2 through the rubber ring 13. By providing the rubber ring 13, the gap between the fixing block 11 and the inner cavity of the assembly tube 2 can be effectively reduced, and the leakage of water entering the inner cavity of the assembly tube 2 can be prevented to affect the normal use of the micro switch 6, thereby enhancing the implementation effect of the present embodiment. On the other hand, by providing the rubber ring 13, the friction between the fixing block 11 and the inner cavity of the assembly tube 2 can be effectively enhanced, and the pressure bearing capacity of the abutment column 4 can be improved, thereby further improving the use effect of the present embodiment.

[0030] like Figures 1 to 4 As shown, the water inlet pipe 3 and the assembly pipe 2 are an integrated structure, and the assembly pipe 2 is provided with a cavity 14 for interconnecting with the water inlet pipe 3, and the cross-sectional length of the cavity 14 close to the assembly pipe 2 is smaller than the cross-sectional length of the end away from the assembly pipe 2; in this embodiment, water flows into the assembly pipe 2 through the cavity 14, and by providing an opening with a shorter cross-sectional length on the cavity 14, the water flow flowing into the cavity 14 can be effectively limited, thereby avoiding the water flow in the assembly pipe 2 from accumulating too quickly so that the abutment column 4 is subjected to a large water pressure in a short time, thereby preventing the normal use of this embodiment from being affected, and improving the implementation effect of this embodiment.

[0031] like Figures 1 to 4 As shown, a number of connecting posts 15 for abutting against the spring 5 are evenly arranged on the abutting post 4; in this embodiment, a total of 5 connecting posts 15 are provided, and the 5 connecting posts are evenly distributed on the surface of the abutting post 4, and the 5 connecting posts 15 and the abutting post 4 are all integrated structures. The spring 5 is sleeved and clamped on the abutting post 4 through the connecting post 15, reducing the gap between the spring 5 and the abutting post 4, effectively avoiding the abutting post 4 from shaking when the abutting post 4 moves vertically upward or vertically downward, preventing the abutting post 4 from being unable to be normally inserted into the circular hole 10, thereby improving the use effect of the utility model. On the other hand, by providing the connecting post 15, the cross-sectional diameter of one end of the abutting post 4 is increased, so that the end of the abutting post 4 with the connecting post 15 cannot pass through the circular hole 10, effectively limiting the moving length of the abutting post 4 in the housing 1 after passing through the circular hole 10, preventing the abutting post 4 from applying too much pressing pressure to the switch plate 7 when there is water pressure in the assembly pipe 2, thereby damaging the switch plate 7, thereby improving the implementation effect of this embodiment.

[0032] like Figures 1 to 4As shown, the outer wall of the assembly tube 2 is provided with a snap-fit ​​block 16, the assembly groove 8 is provided with a snap interface 17 for cooperating and snap-fitting with the snap-fit ​​block 16, and the snap-fit ​​block 16 is provided with an inclined surface 18 at one end away from the water inlet pipe 3; in this embodiment, the assembly tube 2 is inserted into the inner cavity of the assembly groove 8, and the connection structure between the assembly tube 2 and the assembly groove 8 is locked and reinforced by inserting the snap interface 17 with the snap-fit ​​block 16, and the inclined surface 18 is convenient for users to assemble and lock the assembly tube 2 and the assembly groove 8, thereby reducing the assembly difficulty of this embodiment.

[0033] like Figures 1 to 4 As shown, a buffer plate 19 is provided at the upper end of the switch plate 7, and an angle of 5° to 15° exists between the buffer plate 19 and the switch plate 7; wherein, the switch plate 7 and the buffer plate 19 are both metal copper plates; in this embodiment, the buffer plate 19 and the switch plate 7 are an integrated structure, and there is a gap between the switch plate 7 and the micro switch 6. In actual use, the abutment column 4 can relieve part of the pressure by pressing the buffer plate 19, thereby preventing the abutment column 4 from applying excessive pressure to the switch plate 7, causing the switch plate 7 to break, thereby effectively improving the service life of this embodiment.

[0034] like Figures 1 to 4 As shown, the housing 1 is provided with a mounting groove 9 for assembling the micro switch 6, and the inner cavity of the mounting groove is provided with a plurality of clamping blocks 20 and clamping members 21 for clamping the micro switch 6; in this embodiment, the micro switch 6 is provided with a plurality of openings, and the clamping blocks 20 pass through the openings to fix the micro switch 6 in the mounting groove 9, and there are two clamping members 21, which are symmetrically arranged at both ends of the mounting groove 9, and the position of the micro switch 6 is further fixed by the clamping members 21, and the moving range of the micro switch 6 is further limited, so that the micro switch 6 can be effectively fixed on the housing 1.

[0035] Working principle: when the water inlet pipe 3 is connected to the water flow, the abutment column 4 moves downward by the water pressure to compress the spring 5, one end of the abutment column 4 passes through the circular hole 10 to press the switch plate 7, and the micro switch 6 is closed; when there is no water flow in the water inlet pipe 3, the abutment column 4 automatically resets itself through the rebound of the spring 5, so that the switch plate 7 automatically rebounds and resets itself, and the micro switch 6 is turned on.

[0036] The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0037] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

Claims

1. A pressure switch for a fabric cleaning machine, characterized in that: The invention comprises a housing (1) with an assembly groove (8), an assembly pipe (2) inserted into the inner cavity of the assembly groove (8), a water inlet pipe (3) which is mutually connected with the assembly pipe (2) and arranged at the top end of the assembly pipe (2), an abutment column (4) movably arranged in the inner cavity of the assembly pipe (2), a spring (5) sleeved on the abutment column (4), a micro switch (6) arranged in the inner cavity of the housing (1), a switch plate (7) elastically arranged on the micro switch (6), and a circular hole (10) arranged at the top end of the housing (1) and used for the abutment column (4) to pass through; wherein the abutment column (4) is elastically arranged in the assembly pipe (2) by means of the spring (5); When the water inlet pipe (3) is connected to the water flow, the abutment column (4) moves downward by the water pressure to compress the spring (5), and one end of the abutment column (4) passes through the circular hole (10) to press the switch plate (7), and the micro switch (6) is closed; When there is no water flow in the water inlet pipe (3), the abutment column (4) automatically returns to its original position through the rebound of the spring (5), so that the switch plate (7) automatically returns to its original position and the micro switch (6) is turned on.

2. A pressure switch for a fabric washing machine according to claim 1, characterized in that: The water inlet pipe (3) and the assembly pipe (2) are of an integrated structure, and the assembly pipe (2) is provided with an opening (14) for communicating with the water inlet pipe (3), wherein the cross-sectional length of the opening (14) close to one end of the assembly pipe (2) is smaller than the cross-sectional length of the end far from the assembly pipe (2).

3. A pressure switch for a fabric washing machine as claimed in claim 2, characterized in that: A fixing block (11) is provided at the top end of the abutting column (4), one end of the spring (5) abuts against one end of the fixing block (11), and the other end of the spring (5) abuts against the bottom end of the inner cavity of the assembly groove (8).

4. A pressure switch for a fabric washing machine as claimed in claim 3, characterized in that: An annular fixing groove (12) is provided on the peripheral side of the fixing block (11), a rubber ring (13) is sleeved on the fixing groove (12), and the rubber ring (13) abuts against the inner cavity of the assembly tube (2).

5. A pressure switch for a fabric cleaning machine as claimed in claim 4, characterized in that: The cross-sectional shape of the fixing block (11) is circular, and the cross-sectional diameter of the fixing block (11) is greater than the cross-sectional diameter of the abutting column (4).

6. A pressure switch for a fabric washing machine as claimed in claim 5, characterized in that: The cross-sectional shape of the abutment column (4) is circular, and the cross-sectional diameter of the abutment column (4) is smaller than the diameter of the circular hole (10).

7. A pressure switch for a fabric washing machine as claimed in claim 6, characterized in that: A plurality of connection columns (15) for clamping the spring (5) are evenly arranged at one end of the abutment column (4) close to the fixing block (11).

8. The pressure switch for a fabric washing machine according to claim 1, characterized in that: The outer wall of the assembly pipe (2) is provided with a buckle block (16), the assembly groove (8) is provided with a buckle interface (17) for cooperating with the buckle block (16) for buckling, and the buckle block (16) is provided with an inclined surface (18) at one end away from the water inlet pipe (3).

9. A pressure switch for a fabric washing machine as claimed in claim 1, characterized in that: There is a gap between the switch plate (7) and the micro switch (6); a buffer plate (19) is provided at the upper end of the switch plate (7); and an angle of 5° to 15° exists between the buffer plate (19) and the switch plate (7); wherein both the switch plate (7) and the buffer plate (19) are metal copper plates.

10. A pressure switch for a fabric washing machine as claimed in claim 1, characterized in that: The housing (1) is provided with a mounting groove (9) for assembling a micro switch (6), and the inner cavity of the mounting groove (9) is provided with a plurality of clamping blocks (20) and clamping members (21) for clamping the micro switch (6).

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