CN204476739U - A kind of suction booster stop rifle knock-off gear - Google Patents
A kind of suction booster stop rifle knock-off gear Download PDFInfo
- Publication number
- CN204476739U CN204476739U CN201520112412.4U CN201520112412U CN204476739U CN 204476739 U CN204476739 U CN 204476739U CN 201520112412 U CN201520112412 U CN 201520112412U CN 204476739 U CN204476739 U CN 204476739U
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- CN
- China
- Prior art keywords
- valve
- push rod
- pressure retaining
- valve pocket
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000005406 washing Methods 0.000 description 11
- 230000007423 decrease Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Safety Valves (AREA)
Abstract
What the utility model disclosed a kind of suction booster stops rifle knock-off gear; comprise the relief valve be arranged between hyperbaric chamber and low-pressure cavity; stop rifle knock-off gear described in it is characterized in that and also comprise push rod structure and pressure retaining valve; described pressure retaining valve comprises leading portion valve pocket, back segment valve pocket and the pressure retaining valve spool between leading portion valve pocket and back segment valve pocket; the back segment valve pocket of described pressure retaining valve is communicated with hyperbaric chamber; one end of push rod structure is communicated with the leading portion valve pocket of pressure retaining valve; the other end is communicated with the back segment valve pocket of pressure retaining valve, and described push rod structure is connected with sensitive switch.The advantage of this practical mechanism is compact structure, closes rifle shutdown action reliably, easy to assembly.
Description
Technical field
The utility model relates to jetting machine field, and what be specifically related to a kind of suction booster stops rifle knock-off gear, for realizing automatic operation and the stopping of washing machine.
Background technique
The movement that structure generally adopts relief valve spool shut down by the rifle that stops of existing washing machine, controls connection and the closedown of sensitive switch.Application number is a kind of differential pressure type low pressure holding gun closing arresting arrangement of 200410018265.0, disclose a kind of differential pressure type low pressure holding gun closing arresting arrangement, comprise configuration one piston seat in the pump housing, a seal ring is configured between the external diameter of piston seat and the pump housing, a piston is configured in piston seat endoporus, a seal ring is configured between piston seat endoporus and piston, piston seat upper end configures a relief valve seat, a valve core rod is connected in piston inner hole, a relief valve spring is nested with outside valve core rod circumference, in relief valve seat upper end and the periphery being positioned at valve core rod arranges an overflow hole, relief valve seat upper end configures a plug screw, the outside of plug screw configures a sensitive switch, valve core rod top arranges a push rod, push rod top arranges a push arm, push arm is connected with sensitive switch.But, because the displacement distance of the spool of relief valve is limited, often cause sensitive switch close and connect unreliable, so washing machine loses stop rifle stopping function.
Summary of the invention
What the technical problem that the utility model solves was to provide a kind of reliable suction booster stops rifle knock-off gear.
To achieve these goals, the technical solution of the utility model is as follows: a kind of suction booster stop rifle knock-off gear, comprise the relief valve be arranged between hyperbaric chamber and low-pressure cavity, stop rifle knock-off gear described in it is characterized in that and also comprise push rod structure and pressure retaining valve, described pressure retaining valve comprises leading portion valve pocket, back segment valve pocket and the pressure retaining valve spool between leading portion valve pocket and back segment valve pocket, the back segment valve pocket of described pressure retaining valve is communicated with hyperbaric chamber, one end of push rod structure is communicated with the leading portion valve pocket of pressure retaining valve, the other end is communicated with the back segment valve pocket of pressure retaining valve, described push rod structure is connected with sensitive switch.According to specific embodiment of the utility model, described relief valve comprises relief valve valve pocket, be positioned at the relief valve spool of relief valve valve pocket, the relief valve valve seat matched with relief valve spool, the front end of relief valve spool arranges a steel ball, described steel ball matches with the valve opening of relief valve valve pocket, arranges spring between described relief valve valve seat and relief valve spool.Described push rod structure comprises a push rod chamber, in described push rod chamber, a ram piston is set, the rear end of ram piston connects a push rod, described push rod chamber is separated into anterior push rod chamber and push rod chamber, rear portion by described ram piston, anterior push rod chamber is communicated with the leading portion valve pocket of pressure retaining valve, push rod chamber, rear portion is communicated with the back segment valve pocket of pressure retaining valve, arranges spring between push rod and push rod chamber, rear portion.Described push rod is connected with one end of lever, and the other end of lever is connected with sensitive switch.
Machine operation, current produce high pressure by one-way valve and high pressure water gun nozzle act in pump inner high voltage chamber.Mechanism of the present utility model and working principle are: under hydraulic giant open mode, and pressure retaining valve is opened, and under the action of the spring, the steel ball of relief valve separates pump inner high voltage chamber and low-pressure cavity to relief valve.Push rod structure under the action of the spring, keeps pressure at two ends balance, and push rod keeps motionless.Sensitive switch keeps on-state, and washing machine normally works.Close hydraulic giant, pressure retaining valve cuts out, and the pressure in the hyperbaric chamber of relief valve raises, and the pressure reduction between hyperbaric chamber and low-pressure cavity overcomes the active force of spring, and steel ball is backed down, and make hyperbaric chamber and low-pressure cavity UNICOM, the pressure drop in pump is to intake pressure.Raise with the anterior push rod cavity pressure of pressure retaining valve leading portion valve pocket UNICOM in push rod structure simultaneously, with the rear portion push rod cavity pressure of pressure retaining valve back segment valve pocket UNICOM in push rod structure, under relief valve effect, drop to intake pressure.Form huge pressure reduction at the two ends of push rod like this, pressure reduction overcomes the active force of spring, and push rod up moves, and promote lever, sensitive switch cuts out under the effect of lever, and disconnect washing machine motor power, washing machine quits work.Realization stops rifle stopping function.The advantage of this practical mechanism is compact structure, closes rifle shutdown action reliably, easy to assembly.
Accompanying drawing explanation
Fig. 1 is structural scheme of mechanism of the present utility model.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the B-B sectional view of Fig. 1.
Fig. 4 is the worm's eye view of Fig. 1.
Fig. 5 is the C-C sectional view of Fig. 4.
Embodiment
As shown in the figure, hyperbaric chamber 1 and low-pressure cavity 2 are set in suction booster, relief valve 3 is set between hyperbaric chamber 1 and low-pressure cavity 2, stop rifle knock-off gear described in it is characterized in that and also comprise push rod structure and pressure retaining valve, described pressure retaining valve comprises leading portion valve pocket 5, back segment valve pocket 6 and the pressure retaining valve spool 4 between leading portion valve pocket 5 and back segment valve pocket 6, the back segment valve pocket 6 of described pressure retaining valve is communicated with hyperbaric chamber 1, pressure retaining valve leading portion valve pocket 5 is connected with high pressure water gun by high-voltage tube, one end of push rod structure is communicated with the leading portion valve pocket 5 of pressure retaining valve, the other end is communicated with the back segment valve pocket 6 of pressure retaining valve, described push rod structure is connected with sensitive switch 7.According to specific embodiment of the utility model, described relief valve comprises relief valve valve pocket, be positioned at the relief valve spool 11 of relief valve valve pocket, the relief valve valve seat 13 matched with relief valve spool, the front end of relief valve spool arranges a steel ball 12, described steel ball matches with the valve opening of relief valve valve pocket, arranges spring 14 between described relief valve valve seat and relief valve spool.Described push rod structure comprises a push rod chamber, one ram piston 10 is set in described push rod chamber, seal ring seal is passed through between ram piston 10 and push rod chamber, the rear end of ram piston 10 connects a push rod 9, described push rod chamber is separated into anterior push rod chamber and push rod chamber, rear portion by described ram piston, anterior push rod chamber passing hole 16 is communicated with the leading portion valve pocket of pressure retaining valve, push rod chamber, rear portion is communicated with hyperbaric chamber 1 by an inclined hole 15, namely be communicated with the back segment valve pocket of pressure retaining valve, between push rod 9 and push rod chamber, rear portion, spring is set.Described push rod 9 is connected with one end of lever 8, and the other end of lever 8 is connected with sensitive switch 7.In conical surface outside the rear end of described pressure retaining valve spool 4, and its conical surface arranges seal ring, back segment valve pocket 6 end of pressure retaining valve forms the conical surface matched with the pressure retaining valve spool rear end conical surface.
During suction booster work, machine operation, drive crankshaft rotating, bent axle drives plunger reciprocates by connecting rod, and current produce high pressure by one-way valve and high pressure water gun nozzle act in pump.
Pressure retaining valve leading portion is connected with High Pressure Gun by high-voltage tube, and High Pressure Gun is by Non-follow control, and when High Pressure Gun is opened, the pressure in pump down backs down pressure retaining valve (Fig. 3), and current pass through from pressure retaining valve surrounding, penetrates from High Pressure Gun nozzle.When High Pressure Gun manual-lock, pressure retaining valve leading portion pressure sharply rises instantaneously, exceed the pressure that pressure retaining valve back segment produces, promote pressure retaining valve spool to back segment valve pocket (namely in Fig. 3 upwards) movement, seal ring on pressure retaining valve spool is sealed on the conical surface of pressure retaining valve back segment valve pocket end, blocks passage.The leading portion of pressure retaining valve maintains high pressure (higher than a normal operating pressure) tunnel and maintains relief valve unlatching, and a road maintains push rod promotion lever and closes sensitive switch.When hydraulic giant manual unlocking, along with current flow out from High Pressure Gun nozzle, the pressure of pressure retaining valve leading portion declines very soon, and relief valve and push rod reset again, and machine is reworked.The opening and closing of pressure retaining valve are the manually opened and closing control of the trigger by High Pressure Gun.
Under hydraulic giant open mode, pressure retaining valve is opened, and under the action of the spring, the steel ball of relief valve separates pump inner high voltage chamber and low-pressure cavity to relief valve.Push rod structure under the action of the spring, keeps pressure at two ends balance, and push rod keeps motionless.Sensitive switch keeps on-state, and washing machine normally works.
Close hydraulic giant, pressure retaining valve cuts out, and the pressure in the hyperbaric chamber of relief valve raises, and the pressure reduction between hyperbaric chamber and low-pressure cavity increases, and overcome the active force of spring, steel ball is backed down, make hyperbaric chamber and low-pressure cavity UNICOM, the pressure drop in pump is to intake pressure.Raise with the anterior push rod cavity pressure of pressure retaining valve leading portion valve pocket UNICOM in push rod structure, in push rod structure and the push rod chamber, rear portion of pressure retaining valve back segment valve pocket UNICOM, drops to intake pressure in relief valve effect downforce simultaneously.Form huge pressure reduction at the two ends of push rod like this, pressure reduction overcomes the active force of spring, and push rod is (as shown in Figure 3) movement to the right, and promote lever, sensitive switch cuts out under the effect of lever, and disconnect washing machine motor power, washing machine quits work.Realization stops rifle stopping function.
Reopen hydraulic giant, pressure retaining valve leading portion valve pocket pressure drop, decline with the anterior push rod cavity pressure of pressure retaining valve leading portion valve pocket UNICOM in push rod structure, push rod is under the action of the spring toward moving left, and sensitive switch recloses, and washing machine restarts.Pressure drop simultaneously in relief valve and pressure retaining valve leading portion UNICOM hyperbaric chamber, under the action of the spring, relief valve spool is moved to the left (as shown in Figure 2), and steel ball cuts off hyperbaric chamber and low-pressure cavity again, and pump internal pressure rises.Washing machine recovers normal work.
Claims (7)
1. a suction booster stop rifle knock-off gear; comprise the relief valve be arranged between hyperbaric chamber and low-pressure cavity; stop rifle knock-off gear described in it is characterized in that and also comprise push rod structure and pressure retaining valve; described pressure retaining valve comprises leading portion valve pocket, back segment valve pocket and the pressure retaining valve spool between leading portion valve pocket and back segment valve pocket; the back segment valve pocket of described pressure retaining valve is communicated with hyperbaric chamber; one end of push rod structure is communicated with the leading portion valve pocket of pressure retaining valve; the other end is communicated with the back segment valve pocket of pressure retaining valve, and described push rod structure is connected with sensitive switch.
2. suction booster as claimed in claim 1 stop rifle knock-off gear; it is characterized in that described relief valve comprises relief valve valve pocket; be positioned at the relief valve spool of relief valve valve pocket; the relief valve valve seat matched with relief valve spool; the front end of relief valve spool arranges a steel ball; described steel ball matches with the valve opening of relief valve valve pocket, arranges spring between described relief valve valve seat and relief valve spool.
3. suction booster as claimed in claim 2 stop rifle knock-off gear; it is characterized in that described push rod structure comprises a push rod chamber; in described push rod chamber, a ram piston is set; the rear end of ram piston connects a push rod; described push rod chamber is separated into anterior push rod chamber and push rod chamber, rear portion by described ram piston; anterior push rod chamber is communicated with the leading portion valve pocket of pressure retaining valve, and push rod chamber, rear portion is communicated with the back segment valve pocket of pressure retaining valve.
4. suction booster as claimed in claim 3 stop rifle knock-off gear, it is characterized in that, between push rod and push rod chamber, rear portion, spring is set.
5. suction booster as claimed in claim 3 stop rifle knock-off gear, it is characterized in that described push rod is connected with one end of lever, the other end of lever is connected with sensitive switch.
6. suction booster as claimed in claim 1 stop rifle knock-off gear, it is characterized in that pressure retaining valve leading portion valve pocket is connected with high pressure water gun by high-voltage tube.
7. suction booster as claimed in claim 1 stop rifle knock-off gear; in conical surface outside the rear end that it is characterized in that described pressure retaining valve spool; and its conical surface arranges seal ring, the back segment valve pocket end of pressure retaining valve forms the conical surface matched with the pressure retaining valve spool rear end conical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520112412.4U CN204476739U (en) | 2015-02-16 | 2015-02-16 | A kind of suction booster stop rifle knock-off gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520112412.4U CN204476739U (en) | 2015-02-16 | 2015-02-16 | A kind of suction booster stop rifle knock-off gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204476739U true CN204476739U (en) | 2015-07-15 |
Family
ID=53632533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520112412.4U Expired - Fee Related CN204476739U (en) | 2015-02-16 | 2015-02-16 | A kind of suction booster stop rifle knock-off gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204476739U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640620A (en) * | 2016-11-17 | 2017-05-10 | 宁波可利尔电器科技有限公司 | Low pressure retaining device of high pressure cleaning machine |
-
2015
- 2015-02-16 CN CN201520112412.4U patent/CN204476739U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640620A (en) * | 2016-11-17 | 2017-05-10 | 宁波可利尔电器科技有限公司 | Low pressure retaining device of high pressure cleaning machine |
| CN106640620B (en) * | 2016-11-17 | 2019-04-30 | 宁波可利尔电器科技有限公司 | A kind of minimum living pressure device of jetting machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200903 Address after: 201500 1-3 floors of Building 5, 1 / F of building 6 and 1 / F of Building 2, No. 368 Huida Road, Zhangyan Town, Jinshan District, Shanghai Patentee after: SHANGHAI SUPER CHAMPION MACHINERY & ELECTRICAL EQUIPMENT Co.,Ltd. Address before: 201101 No. 6629 Zhong Chun Road, Shanghai, Minhang District Patentee before: SHANGHAI AVIATION ELECTRIC Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150715 |