CN104319171A - Waterproof pressure switch of water purifier - Google Patents
Waterproof pressure switch of water purifier Download PDFInfo
- Publication number
- CN104319171A CN104319171A CN201410637843.2A CN201410637843A CN104319171A CN 104319171 A CN104319171 A CN 104319171A CN 201410637843 A CN201410637843 A CN 201410637843A CN 104319171 A CN104319171 A CN 104319171A
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- Prior art keywords
- shell
- piston
- lever
- water purifier
- pressure switch
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 53
- 239000012528 membrane Substances 0.000 claims abstract description 19
- 238000007789 sealing Methods 0.000 claims description 23
- 239000003292 glue Substances 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 3
- 229910052736 halogen Inorganic materials 0.000 claims description 3
- 150000002367 halogens Chemical class 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 9
- 238000010276 construction Methods 0.000 description 6
- 241001347978 Major minor Species 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 240000007643 Phytolacca americana Species 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/245—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by the deformation of a body of elastic material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/26—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/34—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by diaphragm
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/38—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by piston and cylinder
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Push-Button Switches (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
The invention discloses a waterproof pressure switch of a water purifier. The waterproof pressure switch comprises a pressure driving portion, a lever, a spring device, a travel switch and a shell. The pressure driving portion comprises a piston. The head of the piston is connected with an elastic membrane in an abutting mode. A protruding arc surface is formed on the side, away from the head, of the piston. A sunken arc surface matched with the protruding arc surface is formed at the position, corresponding to the arc surface of the piston, on the upper surface of the lever. Due to the two matched arc surfaces, the piston and the lever are connected in an abutting mode. The shell comprises a main shell and an auxiliary shell. The main shell is in a cuboid shape. An opening through which the travel switch is allowed to pass is formed in one face of the main shell. The face, adjacent to the opening, of the main shell and a communicating pipe are integrally formed. The auxiliary shell is in a hollow prismatic shape and connected to the opening in a sleeving mode. A waterproof gasket is arranged between the auxiliary shell and the main shell in a padded mode. The waterproof pressure switch of the water purifier can have the advantages of being stable in performance, precise in preset pressure control, good in waterproof performance and the like.
Description
Technical field
The present invention relates to a kind of water purifier accessory, relate to a kind of water purifier waterproof pressure switch in particular.
Background technology
The operation principle of pressure regulating switch; a kind of automatic controller receiving pressure signal and action in fact; it has pressure setting function; when device systems pressure meets or exceeds pressure controller capping value; automatic cut-off loop compiled by controller, equipment stopped and plays automatic protective effect, when the lower limit of system pressure lower than setting pressure; controller is automatic processing circuit again, makes equipment recover normal work.
In prior art, the pressure switch of water purifier generally comprises shell and intraware, wherein intraware comprises pressure-driven part and travel switch part, wherein pressure-driven part comprises a communicating pipe, wherein this communicating pipe is three-way pipe, this three-way pipe is T set up of character patt ern, wherein the long tube of this three-way pipe connects outside water purifier pipeline, intervalve is fixedly attached on shell, and be communicated with enclosure, a columned chute is set out in the part that shell is fixedly connected with intervalve, a piston is embedded in chute, in plunger backer, travel switch part is set to intervalve side, wherein one lever construction is set in stroke switching toggle bar part, as shown in Figure 1, when the higher limit of the hydraulic pressure in long tube higher than setting pressure time, water will flow to piston there through intervalve, promote plunger backer to long tube slippage (orientation in reference diagram, be downward slippage), piston will touch the lever construction (this lever construction has certain restoring force as shown in Figure 1) be arranged on travel switch poke rod, lever construction will drive the poke rod of travel switch to move, so travel switch will disconnect the power supply of water purifier in order to avoid break down, reach the effect of a protection water purifier like this, with should in long tube during the lower limit of hydraulic pressure lower than setting pressure, piston just no longer activated lever structure, so lever construction will owing to resetting under the effect of its inner restoring force, so the poke rod of travel switch resets, the power supply of water purifier will be communicated with again, reach one effectively drives water purifier work effect when hydraulic pressure is not enough like this.Pressure switch of the prior art, exists little to preset pressure adjusting range, the defect that precision is low usually.Design simultaneously in existing pressure switch construction is general comparatively coarse, stability and poor durability.And, existing pressure switch after the installation is complete, communicating pipe is the top being arranged on shell, and the environment of surrounding humidity very, and as shown in Figure 1, the shell of existing pressure switch generally includes cover plate and box body, cover plate is arranged on the top of box body, intervalve is communicated with tray interior through cover plate, cover plate just simply covers on box body, gap will be left between such cover plate and box body, extraneous water will flow into tray interior from the gap between cover plate and box body, finally will cause the problem that tray interior travel switch partial short circuit damages.
Summary of the invention
For the deficiency that prior art exists, the object of the present invention is to provide a kind of water purifier waterproof pressure switch that can solve one or more defects in prior art, can realize stable performance, preset pressure controls accurately, water resistance many-sided advantage such as well.
For achieving the above object, the invention provides following technical scheme: a kind of water purifier waterproof pressure switch, comprises pressure-driven part, lever, spring assembly, travel switch and shell, wherein:
Pressure-driven part comprises a pressure responsive element, an elastic membrane, a piston, and wherein this pressure responsive element is arranged in a upper plate, and this upper plate and a lower plate connect; Pressure responsive element by the pressure-loaded that senses to above-mentioned elastic membrane; Elastic membrane comprises smooth mid portion, from the annular section that this smooth mid portion bends, with smooth periphery, this periphery folder of elastic membrane between the upper and lower plates, and be contained in the sunk part formed in upper plate bottom, piston is arranged in the cavity running through lower plate formation, the lower surface of the mid portion that this elastic membrane is smooth and the head of piston abut against, piston is configured to move up and down within the specific limits in the cavity that lower plate is formed in lower plate relatively, and piston is formed as having protruding curved surfaces away from the side of its head;
Lever, the upper surface of lever is formed in the position corresponding with the curved surfaces of piston the curved surfaces of the depression matched with the curved surfaces of above-mentioned projection, the curved surfaces mutually mated by these two, and piston and lever abut against;
Spring assembly, comprises back-moving spring and spring housing;
Travel switch, is arranged in the housing;
Shell, comprise main casing and sub-shell, described main casing is rectangular-shaped setting, its one side offers the opening passed through for travel switch, the one side adjacent with opening was wholely set with communicating pipe, described sub-shell is that a hollow prism shape is arranged, and is socketed on opening, pads and be provided with waterproof gasket between described sub-shell and main casing.
Wherein: described main casing offers caulking groove on the outer wall of opening part, and described sub-shell is provided with abaculus towards the sidewall of opening side, and described abaculus is embedded in caulking groove.
Wherein: described abaculus comprises the first connecting portion and the first Embedded Division, described first Embedded Division is the triangular prism that a rectangular triangle in cross section is arranged, the wherein right angle of right-angled triangle opening setting dorsad, described second connecting portion is rectangular pieces, and described first Embedded Division, the first connecting portion and sub-shell are wholely set.
Wherein: in described caulking groove, be also provided with water-proof strip, described water-proof strip and Embedded Division inconsistent.
Wherein: described abaculus comprises the second connecting portion and the second Embedded Division, described second Embedded Division is cylindric setting, this cylindrical side offers several hole for injecting glue, glue is provided with in described hole for injecting glue, described glue flows on caulking groove through hole for injecting glue, described second connecting portion is rectangular pieces, and described second connecting portion, the second Embedded Division and sub-shell are wholely set.
Wherein: described waterproof gasket is rectangle shape and arranges, this waterproof gasket also offers the through hole passed for travel switch lug plate, the closely connected travel switch lug plate of hole wall of described through hole is arranged, and on this through hole dorsad opening direction extend sealing edge, described sealing is along closely connected with travel switch lug plate.
Wherein: in described sub-shell, be integrally formed with a baffle plate, described baffle plate offers for sealing along closely connected closed hole.
Wherein: described waterproof gasket is made up of silica gel material.
Wherein: described waterproof gasket is made up of elastic rubber material.
Wherein: back-moving spring and lever abut against, thus, when moving down under the drive of lever at piston, lever presses back-moving spring downwards, force back-moving spring generation compression, spring assembly top is provided with a top component, this top component has the hole of the circular cross-section of aiming at back-moving spring center, and be fixedly connected with between the top of back-moving spring, this top component outward flange and spring housing inner surface close contact and Absorbable organic halogens ground slide up and down along spring housing inner surface, be provided with towards the arc-shaped in this hole protruding in the corresponding position of lever, the arc-shaped crowning of this arc-shaped projection and above described holes match, thus this projection can be at least partially housed in hole.
By adopting technique scheme, by elastic membrane shape and the design of contact structures between elastic membrane and piston, can the more effectively pressure that arrives of transmission of pressure sense element senses, by the design to contact structures between piston and lever, lever stress can be made more even, improve the overall precision of pressure switch device of the present invention, by the setting of main casing and sub-shell, after pressure switch installation, because main casing and communicating pipe are wholely set, so there will not be gap between it, and sub-shell is fixed on main casing by the mode of socket, thus to be connected gap much smaller compared to prior art for sub-shell and main casing, simultaneously by the setting of waterproof gasket, even if the water in the external world also can be given by waterproof gasket by the gap between main casing and sub-shell and stop, can prevent extraneous water from flowing in shell the problem that travel switch is damaged further.
In the present invention, by the setting of caulking groove and abaculus, the connection between main casing and sub-shell just can be made more tight, effectively add the water resistance of the connection between main casing and sub-shell, further increase the water resistance of shell.
In the present invention, by Embedded Division is arranged to triangular prism shape, so just can facilitate greatly the installation between sub-shell and main casing, the water resistance between sub-shell and main casing can also be strengthened simultaneously.
In the present invention, by the setting of water-proof strip, just can effectively seal the gap be connected between main casing with sub-shell, effectively add the water resistance of shell.
In the present invention, by the setting of through hole, just can effectively glue be injected between caulking groove and Embedded Division, effectively seal the gap between Embedded Division and caulking groove, increase sub-shell and the sealing be connected between main casing further, increase the water resistance of shell.
In the present invention, by waterproof gasket is arranged to rectangle, just better can cover the opening on main casing, the sealing of effective increase main casing, can be used for the lug plate of travel switch to stretch out in main casing by the setting on through hole and sealing edge simultaneously, the sealing between waterproof gasket and lug plate can also be ensured simultaneously, effectively add the water resistance of shell.
In the present invention, by the setting of baffle plate, after sub-shell is connected with main casing, by sub-shell come tightly push down waterproof gasket, simultaneously by the setting of closed hole, just can effectively reach one clamp sealing edge effect, better can not only fix waterproof gasket, can also effectively increase simultaneously sealing along and the coating performance of lug plate, increase sealing along and lug plate between sealing, increase the water resistance of main casing further.
In the present invention, silica gel material has certain deformability, with agreeing with connecting between major-minor housing here, increases connection sealing between major-minor housing, increases the water resistance of shell.
In the present invention, elastic rubber material has stronger deformability, with agreeing with connecting between major-minor housing here, increases connection sealing between major-minor housing, increases the water resistance of shell.
And, in the present invention, by adopting above-mentioned spring assembly, specific to the setting of the contact structures between spring assembly and lever, to the torsion force that lever produces in release spring compression process, the raising of control precision can be conducive to.
Accompanying drawing explanation
Fig. 1 is the cutaway view of the water purifier pressure switch of prior art;
Fig. 2 is the cutaway view of water purifier waterproof pressure switch of the present invention;
Fig. 3 is the cutaway view of the spring assembly of water purifier waterproof pressure switch of the present invention;
Fig. 4 is the enlarged drawing of A portion embodiment 1 in Fig. 2;
Fig. 5 is the enlarged drawing of A portion embodiment 2 in Fig. 2.
In figure: 1, cover plate; 2, box body; 3, communicating pipe; 4, main casing; 41, caulking groove; 5, sub-shell; 51, abaculus; 511, connecting portion; 512, Embedded Division; 5121, hole for injecting glue; 52, baffle plate; 521, closed hole; 6, waterproof gasket; 61, through hole; 62, edge is sealed; S, sealing strip; 7, elastic membrane; 71, smooth mid portion; 72, the annular section bent; 73, smooth periphery; 8, upper plate; 81, sunk part; 82, pressure responsive element; 9, lower plate; 10, piston; 101, head; 102, away from the side of head; 11, lever; 12, spring assembly; 121, back-moving spring; 122, spring housing; 123, top component; 124, screw rod; 125, nut; 126, screw.
Embodiment
Hereafter will be described in detail specific embodiments of the invention.It should be noted that embodiments of the invention only for helping skilled in the art to understand design of the present invention, not thinking that it forms any limitation of the invention.Should think to be described, so that those skilled in the art can fully understand the present invention with reference to the orientation in accompanying drawing and direction for the description in orientation and direction in the present invention.
Water purifier pressure switch of the present invention can comprise pressure-driven part, lever, spring assembly, travel switch and shell:
In an embodiment of the present invention, the concrete structure of pressure-driven part is described with reference to accompanying drawing 2.
Pressure-driven part of the present invention can comprise a pressure responsive element 82, also can comprise elastic membrane 7, piston 10.Preferably pressure responsive element 82 be arranged in a upper plate 8, this upper plate 8 and a lower plate 9 connect, as shown in Figure 2.Elastic membrane 7 comprises smooth mid portion 71, from the annular section 72 that this flat bends, and smooth periphery 73, this periphery 73 of elastic membrane is clipped between upper plate 8 and lower plate 9, and be contained in the sunk part 81 being that upper plate 8 bottom is formed, as shown in Figure 2.The pressure responsive element 82 being formed in upper plate 8 inside can respond to change in fluid pressure, and by the pressure-loaded that senses to elastic membrane 7.Arrange a cavity on lower plate 9 top, this cavity runs through lower plate 9.One piston 10 is arranged in this cavity.The lower surface of the mid portion 71 that elastic membrane 7 is smooth and the head 101 of piston 10 abut against, and the head of preferred piston 10 also has flat surfaces.Piston 10 is arranged to move up and down within the specific limits in the cavity that can relatively be formed in lower plate 9.Piston 10 is formed as protruding curved surfaces away from the side 102 of its head 101, the corresponding position of lever 11 upper surface is formed with the curved surfaces of the depression matched with the curved surfaces of this projection, the curved surfaces mutually mated by these two, piston 10 and lever 11 abut against.Lever has a rotation axis with the one end away from spring assembly and piston, and lever can rotate around this axle.Herein, by adopting the matching surface of arc to lever and piston, when piston 10 move down and then promote lever 11 move down or the reset force of spring assembly causes lever 11 to move up time, because lever 11 is pivoting movement, therefore there is relative sliding to a certain degree between two curved surfaces, thus, this vibrational power flow of the present invention can make lever stress more even, improves the control precision of pressure switch.
Travel switch is arranged in the shell of water purifier pressure switch, and when the pressure that piston is subject to is enough large, can give downward thrust to lever and impel it to move down, mobile preset distance, just can touch the button of travel switch, and then opening switch.That is, the movement of lever can control
In the present invention, preferably, as shown in Figure 3, spring assembly 12 can comprise back-moving spring 121, spring housing 122.Back-moving spring and lever abut against, thus when lever 11 moves down under the drive of piston 10, lever presses back-moving spring 121 downwards, forces back-moving spring 121 that compression occurs.In preferred version of the present invention, spring assembly 12 top is provided with a top component 123, this top component 123 has the hole of the circular cross-section of aiming at back-moving spring 121 center, be fixedly connected with between the top of back-moving spring 121, this top component 123 outward flange and spring housing inner surface close contact and Absorbable organic halogens ground slide up and down along spring housing inner surface.Be provided with towards the arc-shaped in this hole protruding in the corresponding position of lever 11, the arc-shaped crowning of this arc-shaped projection and above described holes match, thus this projection can be at least partially housed in hole.By this design, to the torsion force that lever produces in release spring compression process, the raising of control precision can be conducive to.Back-moving spring 121 of the present invention is preferably mounted in the installing hole formed by spring housing 122 inner surface, and back-moving spring can move up and down along spring housing 122 inner surface under the restriction of spring housing 12.The installing hole of spring housing 122 inside accommodation back-moving spring 121 can be the structure (attached this structure not shown) of an end closure, like this, if preset the precompression of back-moving spring, when the pressure be then subject to when back-moving spring exceedes this pressure, lever just can touch the button of travel switch, in this case, the preset pressure of back-moving spring is normally constant, namely, once set back-moving spring, the precompression of back-moving spring has also just set, and can not adjust the precompression of back-moving spring as required.In the present invention, preferably, the installing hole of spring housing inside can be arranged to through hole, open-ended, a screw is set in installing hole, this screw outside has screw thread, with the threaded engagement of installing hole inner surface relevant position, when rotating screw makes it move up along spring housing, screw head can upwardly back-moving spring, when rotating screw makes it move down along spring housing, screw head can discharge the precompression of back-moving spring gradually.Thus, can turn screw be passed through, the adjustment position of screw head in installing hole, and then the precompression of adjustment back-moving spring, thus realize touching travel switch at various pressures.Or, the structure shown in Fig. 3 can be adopted, in this structure, one screw rod 124 is set, the nut 125 of this screw rod is arranged on spring housing outside, only at screw rod, screw thread is set away from one end of nut, this screw rod is inserted into the space of back-moving spring inside, one screw 126 is arranged on the threaded one end of screw rod tool, this screw and back-moving spring abut against, by this screw 126, screw rod 124 and spring housing 121 are arranged to, when rotary screw, the relative position of screw rod and spring housing is constant, screw does not rotate with screw rod, but, due to the existence of screw thread, screw 126 moves up or down along spring housing 121 inner surface, and then change the precompression of back-moving spring, realize touching travel switch at various pressures.Adopt this kind of structure, the operation of back-moving spring is more stable, controls more accurate.
Conversely with reference to Fig. 2, a kind of water purifier waterproof pressure switch of the embodiment of the present invention, preferably, also shell can be comprised, be arranged on the communicating pipe 3 on shell and the intraware being arranged on enclosure, described intraware can comprise pressure-driven part and travel switch or other parts, described shell comprises main casing 4 and sub-shell 5, described main casing 4 is in rectangular-shaped setting, its one side offers the opening passed through for travel switch, the one side adjacent with opening was fixedly connected with communicating pipe 3, described sub-shell 5 is arranged in a hollow prism shape, and be socketed on opening, pad between described sub-shell 5 and main casing 4 and be provided with waterproof gasket 6.
By adopting technique scheme, when this water proof switch of making, first pressure-driven part of the present invention is installed, and then put into travel switch (accompanying drawing is unmarked), wherein the lug plate of travel switch stretches out opening setting, first pad upper waterproof gasket 6 afterwards, and then buckle sub-shell 5, at this moment waterproof gasket 6 will be sandwiched between sub-shell 5 and main casing 4, afterwards in the process used, when the external world is very moist, the globule will be gathered on the outer surface of main casing 4 and sub-shell 5, these globules will flow into enclosure through the connection gap between main casing 4 and sub-shell 5, because sub-shell 5 is here socketed on opening, so establish compared to simple lid of the prior art, the gap that connection between sub-shell 5 and main casing 4 is formed is much smaller, thus water resistance is better than existing pressure switch, simultaneously due to the setting of waterproof gasket 6, even if the globule in the external world is come in through the slit flow between sub-shell 5 and main casing 4, waterproof gasket 6 also can be good at these globules to stop the external world, further increase the water resistance of pressure switch.
Below the installation process of two kinds of execution modes of above-mentioned mentioned waterproof gasket 6 and sub-shell 5 is described in further detail.
With reference to shown in Fig. 4, when making waterproof pressure switch, first sealing strip S is embedded at main casing 4 near the caulking groove 41 of opening part, then sub-shell 5 is being socketed on main casing 4, in the process that sub-shell 5 is socketed, because Embedded Division 512 shape on sub-shell 5 is triangular prism shape, its cross section is right-angled triangle simultaneously, leg-of-mutton right angle portions is arranged on this leg-of-mutton caulking groove dorsad 41 one side simultaneously, so when being fit into sub-shell 5, shell due to existing pressure switch is all adopt plastic material to be made, thus sub-shell 5 will carry out the process of an expansion deformation, and this process is the process of changing from small to big, when Embedded Division 512 arrives the top of caulking groove 41 time, arrive maximum deformation quantity, simultaneously because sub-shell 5 makes properties of materials, Embedded Division 512 will be driven like this to be embedded in caulking groove 41, so Embedded Division 512 will be stuck in caulking groove 41 firmly, and also can have certain pressuring action, so just effectively can increase the sealing between Embedded Division 512 and caulking groove 41, further increase the water resistance of waterproof pressure switch, simultaneously due to the setting of sealing strip S, the sealing between Embedded Division 512 and caulking groove 41 can be increased further, add the water resistance of waterproof pressure switch.
With reference to shown in Fig. 5, when making waterproof pressure switch, directly sub-shell 5 is socketed on main casing 4, in the process that sub-shell 5 is socketed, because Embedded Division 512 shape on sub-shell 5 is triangular prism shape, its cross section is right-angled triangle simultaneously, leg-of-mutton right angle portions is arranged on this leg-of-mutton caulking groove dorsad 41 one side simultaneously, so when being fit into sub-shell 5, shell due to existing pressure switch is all adopt plastic material to be made, thus sub-shell 5 will carry out the process of an expansion deformation, and this process is the process of changing from small to big, when Embedded Division 512 arrives the top of caulking groove 41 time, arrive maximum deformation quantity, simultaneously because sub-shell 5 makes properties of materials, Embedded Division 512 will be driven like this to be embedded in caulking groove 41, so Embedded Division 512 will be stuck in caulking groove 41 firmly, and also can have certain pressuring action, so just effectively can increase the sealing between Embedded Division 512 and caulking groove 41, further increase the water resistance of waterproof pressure switch, afterwards glue being injected in Embedded Division 512 to caulking groove 41 by hole for injecting glue 5121, the section shape of hole for injecting glue 5121 is funnel-form as can be seen from Figure, this makes it possible to better glue is incorporated in caulking groove 41, by the injection of glue, not only effectively can stick sub-shell 5 and main casing 4, the fastness connected between both increases, simultaneously because glue has the characteristic of solidification, glue be filled in completely between Embedded Division 512 and caulking groove 41 after will be cured, so be the equal of add the seal filling out space between Embedded Division 512 and caulking groove 41 completely, so just can increase the sealing be connected between sub-shell 5 with main casing 4 greatly, effectively add the water resistance of waterproof pressure switch.
In sum, by adopting the mode of socket to be connected with main casing 4 sub-shell 5, between sub-shell 5 and main casing 4, add waterproof gasket 6 simultaneously, this makes it possible to the water resistance well increasing waterproof pressure switch, avoid the water due to the external world to enter in pressure switch the problem causing internal end of travel switching damage.
The above is only the preferred embodiment of the present invention, protection scope of the present invention be not only confined to above-described embodiment, and all technical schemes belonged under thinking of the present invention all belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a water purifier waterproof pressure switch, comprises pressure-driven part, lever, spring assembly, travel switch and shell, wherein:
Pressure-driven part comprises a pressure responsive element, an elastic membrane, a piston, and wherein this pressure responsive element is arranged in a upper plate, and this upper plate and a lower plate connect; Pressure responsive element by the pressure-loaded that senses to above-mentioned elastic membrane; Elastic membrane comprises smooth mid portion, from the annular section that this smooth mid portion bends, with smooth periphery, this periphery folder of elastic membrane between the upper and lower plates, and be contained in the sunk part formed in upper plate bottom, piston is arranged in the cavity running through lower plate formation, the lower surface of the mid portion that this elastic membrane is smooth and the head of piston abut against, piston is configured to move up and down within the specific limits in the cavity that lower plate is formed in lower plate relatively, and piston is formed as having protruding curved surfaces away from the side of its head;
Lever, the upper surface of lever is formed in the position corresponding with the curved surfaces of piston the curved surfaces of the depression matched with the curved surfaces of above-mentioned projection, the curved surfaces mutually mated by these two, and piston and lever abut against;
Spring assembly, comprises back-moving spring and spring housing;
Travel switch, is arranged in the housing;
Shell, comprise main casing and sub-shell, described main casing is rectangular-shaped setting, its one side offers the opening passed through for travel switch, the one side adjacent with opening was wholely set with communicating pipe, described sub-shell is that a hollow prism shape is arranged, and is socketed on opening, pads and be provided with waterproof gasket between described sub-shell and main casing.
2. water purifier waterproof pressure switch according to claim 1, is characterized in that: described main casing offers caulking groove on the outer wall of opening part, and described sub-shell is provided with abaculus towards the sidewall of opening side, and described abaculus is embedded in caulking groove.
3. water purifier waterproof pressure switch according to claim 2, it is characterized in that: described abaculus comprises the first connecting portion and the first Embedded Division, described first Embedded Division is the triangular prism that a rectangular triangle in cross section is arranged, the wherein right angle of right-angled triangle opening setting dorsad, described second connecting portion is rectangular pieces, and described first Embedded Division, the first connecting portion and sub-shell are wholely set.
4. water purifier waterproof pressure switch according to claim 3, is characterized in that: be also provided with water-proof strip in described caulking groove, described water-proof strip and Embedded Division inconsistent.
5. water purifier waterproof pressure switch according to claim 2, it is characterized in that: described abaculus comprises the second connecting portion and the second Embedded Division, described second Embedded Division is cylindric setting, this cylindrical side offers several hole for injecting glue, glue is provided with in described hole for injecting glue, described glue flows on caulking groove through hole for injecting glue, and described second connecting portion is rectangular pieces, and described second connecting portion, the second Embedded Division and sub-shell are wholely set.
6. water purifier waterproof pressure switch according to claim 1, it is characterized in that: described waterproof gasket is rectangle shape and arranges, this waterproof gasket also offers the through hole passed for travel switch lug plate, the closely connected travel switch lug plate of hole wall of described through hole is arranged, and on this through hole dorsad opening direction extend sealing edge, described sealing is along closely connected with travel switch lug plate.
7. water purifier waterproof pressure switch according to claim 6, is characterized in that: be integrally formed with a baffle plate in described sub-shell, described baffle plate offers for sealing along closely connected closed hole.
8. the water purifier waterproof pressure switch according to claim 6 or 7, is characterized in that: described waterproof gasket is made up of silica gel material.
9. the water purifier waterproof pressure switch according to claim 6 or 7, is characterized in that: described waterproof gasket is made up of elastic rubber material.
10. the water purifier waterproof pressure switch according to any one of claim 1-7, it is characterized in that: back-moving spring and lever abut against, thus, when moving down under the drive of lever at piston, lever presses back-moving spring downwards, force back-moving spring generation compression, spring assembly top is provided with a top component, this top component has the hole of the circular cross-section of aiming at back-moving spring center, and be fixedly connected with between the top of back-moving spring, this top component outward flange and spring housing inner surface close contact and Absorbable organic halogens ground slide up and down along spring housing inner surface, be provided with towards the arc-shaped in this hole protruding in the corresponding position of lever, the arc-shaped crowning of this arc-shaped projection and above described holes match, thus this projection can be at least partially housed in hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410637843.2A CN104319171B (en) | 2014-11-13 | 2014-11-13 | Waterproof pressure switch of water purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410637843.2A CN104319171B (en) | 2014-11-13 | 2014-11-13 | Waterproof pressure switch of water purifier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104319171A true CN104319171A (en) | 2015-01-28 |
| CN104319171B CN104319171B (en) | 2017-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410637843.2A Expired - Fee Related CN104319171B (en) | 2014-11-13 | 2014-11-13 | Waterproof pressure switch of water purifier |
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| Country | Link |
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| CN (1) | CN104319171B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106044887A (en) * | 2016-07-20 | 2016-10-26 | 嘉兴市英伦电器科技有限公司 | Special shell for water purifier |
| CN106206099A (en) * | 2016-07-09 | 2016-12-07 | 西北工业大学 | A kind of deep water pressure-bearing lever travel switch |
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| CN201936809U (en) * | 2011-01-29 | 2011-08-17 | 广东沪顺电器有限公司 | High voltage water pressure switch |
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| CN203931933U (en) * | 2014-05-16 | 2014-11-05 | 乐清市通达有线电厂 | A kind of water purifier and pressure regulating switch thereof |
| CN204155834U (en) * | 2014-11-13 | 2015-02-11 | 乐清市通达有线电厂 | Water purifier waterproof pressure switch |
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| US5461208A (en) * | 1993-03-24 | 1995-10-24 | Texas Instruments Incorporated | Compact high pressure snap-acting switch |
| CN201383471Y (en) * | 2009-03-20 | 2010-01-13 | 黄彪 | High water pressure switch |
| CN201936809U (en) * | 2011-01-29 | 2011-08-17 | 广东沪顺电器有限公司 | High voltage water pressure switch |
| CN102436965A (en) * | 2011-12-27 | 2012-05-02 | 上海瑞勃思能源科技有限公司 | Logical switch |
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| CN106206099A (en) * | 2016-07-09 | 2016-12-07 | 西北工业大学 | A kind of deep water pressure-bearing lever travel switch |
| CN106206099B (en) * | 2016-07-09 | 2018-06-19 | 西北工业大学 | A kind of deep water pressure-bearing lever travel switch |
| CN106044887A (en) * | 2016-07-20 | 2016-10-26 | 嘉兴市英伦电器科技有限公司 | Special shell for water purifier |
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| Publication number | Publication date |
|---|---|
| CN104319171B (en) | 2017-05-03 |
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