CN101846063B - Pressure regulator of electric air pump - Google Patents
Pressure regulator of electric air pump Download PDFInfo
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- CN101846063B CN101846063B CN 201010177279 CN201010177279A CN101846063B CN 101846063 B CN101846063 B CN 101846063B CN 201010177279 CN201010177279 CN 201010177279 CN 201010177279 A CN201010177279 A CN 201010177279A CN 101846063 B CN101846063 B CN 101846063B
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- spring
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- chassis
- adjusting screw
- knob
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- 238000007789 sealing Methods 0.000 claims abstract description 21
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 31
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
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Abstract
The invention relates to a pressure regulator of an electric air pump. The pressure regulator is characterized by comprising a base plate, a flexible sealing fin, a moving plate, a base with an inner cavity, an adjusting screw, a knob with an inner gear ring and a trigger switch, wherein the base plate is provided with a chamber with an open upper part; an air inlet nozzle is arranged on the side wall of the base plate; the flexible sealing fin is arranged on the upper end face of the base plate and covers the opening at the upper end of the chamber; the moving plate is laid on the flexible sealing fin; the base with the inner cavity is fixed on the upper end face of the base plate; a threaded hole communicated with the inner cavity is arranged on the upper end face of the base; the adjusting screw is connected in the threaded hole; a spring is supported between the lower end of the adjusting screw and the moving plate; a pinion is fixed at the upper end of the adjusting screw; the knob with the inner gear ring is sleeved on an mounting column of the base and can rotate; the pinion is meshed with the inner gear ring of the knob; and the trigger switch is fixed on the base and a contact of the trigger switch extends into the inner cavity of the base. The regulator can drive the adjusting screw to rotate to drive the deformation of the spring by only rotating the knob and realize the adjustment at maximum pressure without extra adjusting tool.
Description
Technical field
The present invention relates to a kind of pressure governor of electric air pump.
Background technology
The portable electric air pump is inflated in order to be inflated equipment for tire, air mattress, inflatable boat etc., in order to substitute inflator etc. manually the equipment of inflating inflate, raise the efficiency.Excessive for preventing the equipment that is inflated its inner air pressure after inflation, use even explosion and impact is normal, generally we can be provided with pressure governor at electric air pump, rotation pressure regulator during use is in order to default maximum inflation pressure, when the maximum pressure in the charger reaches default maximum pressure, pressure governor work, in order to cut off the electricity supply, make electric air pump stop to guarantee that to being inflated the equipment inflation electric air pump is to being inflated the safety inflated of equipment.
But the normal pressure governor that adopts of existing electric air pump is a kind of tensimeter of set pressure, be the disclosed tensimeter of Chinese utility model patent " pressure gauge with setting pressure control range " of ZL97104213.6 (notification number is CN1197205Y) such as a patent No., or as a patent No. be the disclosed device of Chinese utility model patent " but device of set pressure control power supply " of ZL95220733.8 (notification number is CN2247827Y), although more than this pressure governor have the readable advantage of pressure, its structure is relatively complicated.
For aforementioned present situation, have human hair to understand that such as the patent No. be the regulator that the Chinese utility model patent " pressure regulator " of ZL03253241.5 (notification number is CN2650736Y) has disclosed, it is by upper shell, lower house, be positioned at the admission piece on the lower house sidewall, outlet nozzle, row, envelope valve, elasticity envelope gas sheet, be connected with elasticity envelope gas sheet upper surface and be positioned at the endoceliac balance backing plate of upper casing, be fixed on the contact on this balance backing plate, pressure spring, pressure regulation contact bolt and lock nut form.This pressure regulator has simple and reasonable for structure, pressure setting, advantage easy to adjust.
During pressure regulation, rotate and regulate pressure regulation contact bolt, increase the spacing between the contact on bolt lower surface, pressure regulation contact and the balance backing plate, the distance of moving on the balance backing plate like this is elongated, namely needs to overcome the power that long spring deformation produces, so need larger air pressure could promote to move on the balance backing plate contact and the conflict of pressure regulation contact bolt, the final adjusting setting that realizes maximum gas pressure, from the structure of this patent, need to could regulate pressure regulation contact bolt, inconvenient operation by screwdriver; Have again, the elasticity coefficient of each spring is identical in the aforementioned pressure regulator, if the elasticity coefficient of each spring is less, although can accurately read the maximum pressure of setting, the maximum pressure value of large its setting can be on the low side, if the elasticity coefficient of each spring is larger, exists so pressure regulation contact bolt to rotate a low-angle, the setting of its top pressure just has larger variation, can not the accurate adjustment maximum pressure.
Summary of the invention
Technical matters to be solved by this invention is the pressure governor that a kind of novel structure and easy to operate electric air pump are provided for above-mentioned prior art present situation.
The technical scheme that the present invention solves the problems of the technologies described above employing is: a kind of pressure governor of electric air pump, it is characterized in that: include the chassis, the upper surface on chassis has the chamber of upper opening, has the admission piece that is communicated with extraneous and described chamber on the sidewall on chassis; Flexible sealing fin is arranged on the upper surface on chassis, and the upper end open of described chamber is covered to form air chamber; Movable plate is shelved on the flexible sealing fin; Pedestal with inner chamber is fixed on the upper surface on chassis, is compressed between pedestal and the chassis around the described flexible sealing fin, and described movable plate is arranged in the inner chamber of pedestal and can moves up and down, and the upper surface of pedestal is provided with the threaded hole that is communicated with inner chamber; Adjusting screw(rod) in the described threaded hole that is threaded, is supported with spring between the lower end of adjusting screw(rod) and the movable plate, and the upper end of adjusting screw(rod) is fixed with pinion wheel; Knob with ring gear, this knob sleeve are located on the erection column on the pedestal and can rotate, and the ring gear of described pinion wheel and knob meshes; Touch switch is fixed on the described pedestal, and the inner chamber of pedestal is stretched in the contact of this touch switch, moves the contact that can touch this touch switch on the described movable plate.
Above-mentioned flexible sealing fin has the arch ring that upwards arches upward.Arch ring provides more elastic deformation space for flexible sealing fin, be convenient to flexible sealing fin upwards distortion upspring, overcome the contact of moving on the spring force with touch switch and conflict and promote movable plate.
Chamber on the above-mentioned chassis is for being criss-cross groove.Making like this gas that enters chamber promote more stably flexible sealing fin lifts.
For ease of this pressure governor being installed on the shell of electric air pump, having three intervals on the above-mentioned chassis and arrange and upwardly extending joint pin.
Has a pointer section on the above-mentioned knob perisporium.So in use, but knob can correctly be indicated the graduated ring in the shell upper surface that is arranged at electric air pump, accurately reads the maximum gas pressure that this pressure governor is set.
For ease of touch switch is installed on the pedestal, the said base sidepiece cuts a mounting plane, described touch switch is fixed by screws on this mounting plane, and has the protruding reference column of side on the described mounting plane, and described touch switch is provided with the pilot hole for the reference column inserting.Because the inserting of reference column and pilot hole location can correctly be installed to the pedestal relevant position with touch switch.
Be difficult for skew after making spring fitting, be inserted with limited post on the above-mentioned movable plate, this limited post is the described adjusting screw(rod) of movable insertion upwards, and described spring housing is located on this limited post.
As improving further, above-mentioned spring has two, is respectively the first spring and the second spring, and the elasticity coefficient of the first spring is greater than the elasticity coefficient of the second spring, and described the first spring is positioned at the below of the second spring.Certainly spring also can only have one.
Because two mutually springs of the different elasticity coefficient of stack are set, when regulating set pressure like this, adjusting screw(rod) at first acts on the second less spring of elasticity coefficient after rotating adjusting screw(rod), even if it is larger that adjusting screw(rod) drives the deflection of the first spring-compressed, but its effect is also less with the pretension elastic force of movable plate, even knob relatively rotates a larger angle like this, the variable quantity that its maximum gas pressure is set is also little, so can be in less pressure limit the maximum pressure set of accurate adjustment, so that the scale that is arranged on the electric air pump shell upper surface is more sparse, be convenient to read the maximum pressure value of setting, and only have after the second spring-compressed arrives to a certain degree, deformation just occurs in the first spring, so can improve again the maximal value of set pressure.
Can mutually not be entangled with interference for making between the first spring and the second spring, also be arranged with the spacer ring that described the first spring and the second spring are separated on the above-mentioned limited post.
Compared with prior art, the invention has the advantages that: this pressure governor only needs turning knob just can drive adjusting screw(rod) and rotates the deformation that drives spring, regulate with the setting that realizes maximum pressure, need not extra adjustment means, so the operation when regulating pressure of this pressure governor is easy and convenient; There have this pressure governor to relate to parts again to be less, and simple in structure being convenient to processed.
Description of drawings
Fig. 1 is the schematic perspective view one of the embodiment of the invention;
Fig. 2 is the schematic perspective view two of the embodiment of the invention;
Fig. 3 is the schematic perspective view three of the embodiment of the invention;
Fig. 4 is the structure cut-open view of the embodiment of the invention;
Fig. 5 is the three-dimensional exploded view of the embodiment of the invention.
Embodiment
Embodiment is described in further detail the present invention below in conjunction with accompanying drawing.
Shown in Fig. 1～5, be a preferred embodiment of the present invention.
A kind of pressure governor of electric air pump, include chassis 1, the upper surface on chassis 1 has the chamber 11 of upper opening, chamber 11 on the chassis is for being criss-cross groove, have the admission piece 12 that is communicated with extraneous and chamber 11 on the sidewall on chassis 1, also have three intervals on the chassis 1 and arrange and upwardly extending joint pin 13.
Substantially rounded flexible sealing fin 2, it is generally made by elastomeric material, covers on the upper surface on chassis 1, and the upper end open of described chamber 11 is covered to form air chamber, flexible sealing fin 2 has the arch ring 21 that a circle upwards arches upward, and the cross section of arch ring 21 takes the shape of the letter U substantially.
Adjusting screw(rod) 5, has center through hole in it, adjusting screw(rod) 5 is threaded in the described threaded hole 42 and is movably set on the limited post 9, but so just relative limit post 9 rotations of adjusting screw(rod) 9, be supported with spring between the lower end of adjusting screw(rod) 5 and the movable plate 3, spring housing is located on this limited post 9, spring has two, be respectively the first spring 6a and the second spring 6b, the elasticity coefficient of the first spring 6a is greater than the elasticity coefficient of the second spring 6b, and described the first spring 6a is positioned at the below of the second spring 6b, also is arranged with the spacer ring 10 that the first spring 6a and the second spring 6b are separated on the limited post 9, and the upper end of adjusting screw(rod) 5 is fixed with pinion wheel 51.
Knob 7 with ring gear 71, this knob 7 are set on the erection column 43 on the pedestal and can rotates, and the ring gear 71 of pinion wheel 51 and knob meshes, and has a pointer section 72 on knob 7 perisporiums.
Principle of work and the process of the pressure governor of this electric air pump are as follows:
In the time will regulating toward the direction that increases maximum pressure, clockwise rotate knob, knob drives pinion wheel and adjusting screw(rod) rotation, adjusting screw(rod) just rotates in the threaded hole on pedestal, principle according to the screw thread transmission, adjusting screw(rod) moves down in threaded hole, because the elasticity coefficient of the first spring 6a is greater than the elasticity coefficient of the second spring 6b, so the second spring 6b is first compressed, until after the second spring 6b was compressed to a certain degree, deformation just occured in the first spring 6a, such two spring 6a, 6b is maximum to the downward preload pressure of movable plate, the gas that enters air chamber from valve like this needs larger air pressure could promote flexible sealing fin to move with regard to movable plate, so that movable plate touches the contact of touch switch, touch switch is activated, and sends signal to the motor of electric air pump, make motor out of service, the safety when guaranteeing to be inflated the equipment inflation.
In the time will regulating toward the direction that reduces maximum pressure, its process is just in time opposite.
Claims (7)
1. the pressure governor of an electric air pump is characterized in that: include
Chassis (1), the upper surface of chassis (1) have the chamber (11) of upper opening, have the admission piece (12) that is communicated with extraneous and described chamber (11) on the sidewall of chassis (1);
Flexible sealing fin (2) is arranged on the upper surface of chassis (1), and the upper end open of described chamber (11) is covered to form air chamber;
Movable plate (3) is shelved on the flexible sealing fin (2);
Pedestal (4) with inner chamber (41), be fixed on the upper surface of chassis (1), be compressed between pedestal (4) and chassis (1) around the described flexible sealing fin (2), described movable plate (3) is arranged in the inner chamber (41) of pedestal and can moves up and down, and the upper surface of pedestal (4) is provided with the threaded hole (42) that is communicated with inner chamber (41);
Adjusting screw(rod) (5) in the described threaded hole (42) that is threaded, is supported with spring (6a, 6b) between the lower end of adjusting screw(rod) (5) and the movable plate (3), the upper end of adjusting screw(rod) (5) is fixed with pinion wheel (51);
The erection column (43) that knob (7) with ring gear (71), this knob (7) are set on the pedestal upward also can rotate, and described pinion wheel (51) meshes with the ring gear (71) of knob;
Touch switch (8) is fixed on the described pedestal (4), and the contact of this touch switch (81) stretch into the inner chamber (41) of pedestal, moves the contact (81) that can touch this touch switch on the described movable plate (3);
Be inserted with limited post (9) on the described movable plate (3), this limited post (9) is the movable described adjusting screw(rod) (5) that inserts upwards, and described spring (6a, 6b) is set on this limited post (9);
Described spring has two, be respectively the first spring (6a) and the second spring (6b), the elasticity coefficient of the first spring (6a) is greater than the elasticity coefficient of the second spring (6b), and described the first spring (6a) is positioned at the below of the second spring (6b).
2. pressure governor according to claim 1, it is characterized in that: described flexible sealing fin (2) has the arch ring (21) that upwards arches upward.
3. pressure governor according to claim 1, it is characterized in that: the chamber on the described chassis (11) is for being criss-cross groove.
4. pressure governor according to claim 1 is characterized in that: have three intervals on described chassis (1) and arrange and upwardly extending joint pin (13).
5. pressure governor according to claim 1 is characterized in that: have a pointer section (72) on described knob (7) perisporium.
6. pressure governor according to claim 1, it is characterized in that: described pedestal (4) sidepiece cuts a mounting plane (44), described touch switch (8) is fixed by screws on this mounting plane (44), and have the protruding reference column of side (45) on the described mounting plane (44), described touch switch (8) is provided with the pilot hole (82) for reference column (45) inserting.
7. pressure governor according to claim 1 is characterized in that: also be arranged with the spacer ring (10) that described the first spring (6a) and the second spring (6b) are separated on the described limited post (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010177279 CN101846063B (en) | 2010-05-18 | 2010-05-18 | Pressure regulator of electric air pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010177279 CN101846063B (en) | 2010-05-18 | 2010-05-18 | Pressure regulator of electric air pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101846063A CN101846063A (en) | 2010-09-29 |
| CN101846063B true CN101846063B (en) | 2013-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010177279 Active CN101846063B (en) | 2010-05-18 | 2010-05-18 | Pressure regulator of electric air pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101846063B (en) |
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| US11480305B2 (en) | 2014-09-25 | 2022-10-25 | Jiaxing Super Lighting Electric Appliance Co., Ltd. | LED tube lamp |
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| WO2016070824A1 (en) * | 2014-11-06 | 2016-05-12 | 嘉兴山蒲照明电器有限公司 | Led straight lamp |
| US10514134B2 (en) | 2014-12-05 | 2019-12-24 | Jiaxing Super Lighting Electric Appliance Co., Ltd | LED tube lamp |
| US12264789B2 (en) | 2014-12-05 | 2025-04-01 | Jiaxing Super Lighting Electric Appliance Co., Ltd | LED tube lamp |
| US9897265B2 (en) | 2015-03-10 | 2018-02-20 | Jiaxing Super Lighting Electric Appliance Co., Ltd. | LED tube lamp having LED light strip |
| ITUB20150884A1 (en) * | 2015-05-25 | 2016-11-25 | Arno Drechsel | PRESSURE REGULATING DEVICE FOR A LIQUID |
| CN109859722A (en) * | 2017-11-29 | 2019-06-07 | 森兰信息科技（上海）有限公司 | Elastic construction, musical instrument pedal and pianotron |
| CN109505752B (en) * | 2018-12-27 | 2023-12-12 | 昆山十全塑胶五金产品有限公司 | Inflator capable of presetting pressure value |
| CN109976401A (en) * | 2019-04-22 | 2019-07-05 | 广州市建筑科学研究院有限公司 | A kind of aeration control device of inflation anchor bar |
| CN110749506A (en) * | 2019-10-14 | 2020-02-04 | 宁夏计量质量检验检测研究院 | Building material pressure test instrument comprehensive detector |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2238430Y (en) * | 1995-08-14 | 1996-10-23 | 黄添财 | Pressure gauge with automatic power control |
| CN2650736Y (en) * | 2003-09-02 | 2004-10-27 | 赵清福 | Pressure regulator |
| WO2005003876A1 (en) * | 2003-06-27 | 2005-01-13 | Fisher Controls International, L.L.C. | Pressure regulator with ingrated reverse pressure exhaust |
| CN1756631A (en) * | 2003-03-06 | 2006-04-05 | 电气联合股份有限公司 | Chain saw tensioning device |
| CN101672387A (en) * | 2009-09-30 | 2010-03-17 | 陈国顺 | Long-stroke electromagnetic head |
| CN201679701U (en) * | 2010-05-18 | 2010-12-22 | 宁波布拉沃冲气具制造有限公司 | Pressure regulator of electric air pump |
-
2010
- 2010-05-18 CN CN 201010177279 patent/CN101846063B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2238430Y (en) * | 1995-08-14 | 1996-10-23 | 黄添财 | Pressure gauge with automatic power control |
| CN1756631A (en) * | 2003-03-06 | 2006-04-05 | 电气联合股份有限公司 | Chain saw tensioning device |
| WO2005003876A1 (en) * | 2003-06-27 | 2005-01-13 | Fisher Controls International, L.L.C. | Pressure regulator with ingrated reverse pressure exhaust |
| CN2650736Y (en) * | 2003-09-02 | 2004-10-27 | 赵清福 | Pressure regulator |
| CN101672387A (en) * | 2009-09-30 | 2010-03-17 | 陈国顺 | Long-stroke electromagnetic head |
| CN201679701U (en) * | 2010-05-18 | 2010-12-22 | 宁波布拉沃冲气具制造有限公司 | Pressure regulator of electric air pump |
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| Publication number | Publication date |
|---|---|
| CN101846063A (en) | 2010-09-29 |
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