CN202593495U - Shut-off switch - Google Patents
Shut-off switch Download PDFInfo
- Publication number
- CN202593495U CN202593495U CN 201220124682 CN201220124682U CN202593495U CN 202593495 U CN202593495 U CN 202593495U CN 201220124682 CN201220124682 CN 201220124682 CN 201220124682 U CN201220124682 U CN 201220124682U CN 202593495 U CN202593495 U CN 202593495U
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- CN
- China
- Prior art keywords
- piston
- switch
- shut
- piston rod
- braking
- 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
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Abstract
The utility model belongs to the technical field of mechanical equipment, in particular relates to a shut-off switch connected to an automobile trailer pipeline, and solves the technical problems that the conventional trailer braking device has a complicated structure, is inconvenient to use and operate and long in braking time and braking distance and the like. The shut-off switch comprises a body and a knob connected to the body, wherein an air inlet and an air outlet are respectively formed on the two opposite sides of the body; a piston rod is arranged in the body close to the air inlet; and a piston penetrates through the piston rod and connected with a sliding mechanism arranged in the body. The shut-off switch has the advantages that the switch has a simple structure and is reasonable in design, low in equipment cost and convenient to use and operate, operating time can be shortened, braking distance can be reduced, wear is reduced, and the like.
Description
Technical field
The utility model belongs to mechanical equipment technical field, especially relates to a kind of separating switch that is connected on the auto trailer pipeline.
Background technology
Along with the quickening of The development in society and economy and people's rhythm of life, trailer has obtained using more widely in commercial production and communications and transportation as comparatively common transportation means.Trailer braking valve is in order to the braking of control trailer or superimposed trailer, is loaded on the dual-line braking system that is applicable to trailer on the tractor truck, and the tractor truck main brake is a double-circuit system, and parking or emergency braking are the formula brakings of dying.Traditional trailer braking valve has when the trailer brake system pilot piping and connects the function that fracture or gas leakage can cause trailer braking protection valve automatically, and existing master cock or control cock are difficult to satisfy to the easy needs of trailer pipeline control.
In order to solve the problem that prior art exists, people have carried out long-term exploration, have proposed multi-form solution.For example, the Chinese patent document discloses a kind of Car multi-functional trailer valve assembly [application number: 200520039298.3], mainly is made up of valve body; Valve body is divided into upper valve body and following valve body; Relay piston, valve, valve spring, valve seat and exhaust seat are installed in the valve body from top to bottom successively, and upper valve body is provided with two admission ports and a control mouth, and one of them admission port is with blocking; Following valve body is provided with an exhausr port; Two circulation ports, an opened by pressure valve port and four air extractor ducts, wherein two circulation ports respectively are equipped with two one-way cocks in the opposite direction; Respectively be provided with end cap on two circulation ports and the opened by pressure valve port, and directly tighten with two hexagonal bar irons that have a flange face and to be tightly connected.
Such scheme has improved prior art to a certain extent, has improved the function of trailer valve.But this scheme is complex structure not only, inconvenient operation, and have technical matterss such as in-use performance is single, braking time is of a specified duration, stopping distance is long.
Summary of the invention
The purpose of the utility model is to the problems referred to above, provides a kind of reasonable in design, simple in structure, and equipment cost is low, uses easy to operately, can reduce the separating switch of operating time.
For achieving the above object; The utility model has adopted following technical proposal: originally separate the pass; Comprise body and be connected the turn-knob on the body, relative both sides are provided with admission port and air extractor duct on body, and the position near admission port in the described body is provided with piston rod; On piston rod, be equipped with piston, described piston be located at intrinsic slide mechanism and be connected.
In above-mentioned separating switch, described slide mechanism comprises and body-fixed bonded assembly slide bar, on slide bar, is provided with the groove that can supply piston to reciprocatingly slide.
In above-mentioned separating switch, described body bottom is provided with check valve, and described check valve is connected with body through connecting rod.
As preferably, in above-mentioned separating switch, described admission port and air extractor duct are equipped with seal ring.
Compared with prior art, the advantage of originally separating the pass is: reasonable in design, simple in structure, equipment cost is low, uses easy to operately, can reduce operating time and stopping distance, reduces wear.
Description of drawings
Fig. 1 is the cutaway view that the utility model provides.
Among the figure, body 1, knob 2, admission port 3, air extractor duct 4, piston rod 5, piston 6, slide mechanism 7, slide bar 71, check valve 8, connecting rod 9, seal ring 10.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further detailed explanation.
As shown in Figure 1, originally separate the pass, comprise body 1 and be connected the turn-knob 2 on the body 1; Relative both sides are provided with admission port 3 and air extractor duct 4 on body 1, and the position near admission port 3 in body 1 is provided with piston rod 5, on piston rod 5, is equipped with piston 6; And piston 6 is connected with slide mechanism 7 in being located at body 1; Body 1 bottom is provided with check valve 8, and described check valve 8 is connected with body 1 through connecting rod 9, and admission port 3 is equipped with seal ring 10 with air extractor duct 4.Slide mechanism 7 in the present embodiment comprises the slide bar 71 of captiveing joint with body 1, on slide bar 71, is provided with the groove that can supply piston to reciprocatingly slide.The slide mechanism 7 here can be taked the alternative of multiple various kinds, as long as can help the crank motion of piston 6.
Specific embodiment described herein only is that the utility model spirit is made casehistory.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of the utility model or surmount the defined scope of appended claims.
Although this paper has used terms such as body 1, knob 2, admission port 3, air extractor duct 4, piston rod 5, piston 6, slide mechanism 7, slide bar 71, check valve 8, connecting rod 9, seal ring 10 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain the essence of the utility model more easily, and it all is contrary with the utility model spirit being construed to any additional restriction to them.
Claims (4)
1. separating switch; Comprise body (1) and be connected the turn-knob (2) on the body (1); Go up relative both sides at body (1) and be provided with admission port (3) and air extractor duct (4), it is characterized in that, the position near admission port (3) in the described body (1) is provided with piston rod (5); On piston rod (5), be equipped with piston (6), described piston (6) slide mechanism (7) interior with being located at body (1) is connected.
2. separating switch according to claim 1 is characterized in that, described slide mechanism (7) comprises the slide bar (71) of captiveing joint with body (1), on slide bar (71), is provided with the groove that can supply piston to reciprocatingly slide.
3. separating switch according to claim 2 is characterized in that, described body (1) bottom is provided with check valve (8), and described check valve (8) is connected with body (1) through connecting rod (9).
4. according to claim 1 or 2 or 3 described separating switch, it is characterized in that described admission port (3) and air extractor duct (4) are equipped with seal ring (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220124682 CN202593495U (en) | 2012-03-29 | 2012-03-29 | Shut-off switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220124682 CN202593495U (en) | 2012-03-29 | 2012-03-29 | Shut-off switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202593495U true CN202593495U (en) | 2012-12-12 |
Family
ID=47311069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220124682 Expired - Fee Related CN202593495U (en) | 2012-03-29 | 2012-03-29 | Shut-off switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202593495U (en) |
-
2012
- 2012-03-29 CN CN 201220124682 patent/CN202593495U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20140329 |