CN208336088U - A kind of superposing type pressure switch - Google Patents
A kind of superposing type pressure switch Download PDFInfo
- Publication number
- CN208336088U CN208336088U CN201820941157.8U CN201820941157U CN208336088U CN 208336088 U CN208336088 U CN 208336088U CN 201820941157 U CN201820941157 U CN 201820941157U CN 208336088 U CN208336088 U CN 208336088U
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- China
- Prior art keywords
- piston rod
- main body
- internal diameter
- pressure switch
- cavity
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Abstract
A kind of superposing type pressure switch, including the main body led in inside and the valve body for being connected to main body right end；It is equipped with positioning seat in main body, is equipped with piston rod in positioning seat；Piston rod on the left of positioning seat is equipped with piston sheet, and the piston rod on right side is arranged with fixture nut；The right end of piston rod is located in the cavity of valve body；The internal diameter of cavity right part matches with piston rod outer diameter；Cavity right end is connected to oil pocket, and oil pocket internal diameter is less than cavity internal diameter；Beneficial effect is: by fine motion lever come the variable quantity of transfer piston rod axial direction, while cooperating double-deck spring, so that the precision of relay is improved；It can be by adjusting the relative position of adjusting rod and handle set, to realize the adjusting of adjusting rod left-right position, the initial length of further adjustment spring, thus to realize that the detection to different pressures is adjusted.
Description
Technical field
The utility model belongs to relay field more particularly to a kind of hydraulic system pressure switch.
Background technique
Pressure switch be in hydraulic system when Fluid pressure reaches predetermined value, make electric contact act element.Pressure
Relay also may be defined as converting pressure into the hydraulic component of electric signal, and client is led to according to itself pressure design needs
Pressure switch is overregulated, realizes in the pressure of a certain setting, exports the function of an electric signal.
Existing pressure switch can only generally realize a kind of setting of pressure, and specificity is too big, lead to use cost height.
Existing relay is generally only with single spring, however spring is easily deformed when accepting, and is easily bent, from
And the variation of its deformation quantity can be made, cause elastic force to change, to influence the final precision of relay.
Utility model content
To solve the above-mentioned problems, the utility model adopts the following technical solution:
A kind of superposing type pressure switch, including the main body led in inside and the valve body for being connected to main body right end；
It is equipped with positioning seat in the main body, is equipped with piston rod in the positioning seat；Piston rod on the left of the positioning seat
It is equipped with piston sheet, the piston rod on right side is arranged with fixture nut；The right end of the piston rod is located in the cavity of the valve body；
The internal diameter of the cavity right part matches with the piston rod outer diameter；The cavity right end is connected to oil pocket, the oil
Intracavitary diameter is less than the cavity internal diameter；
The fixture nut lateral wall is equipped with screw thread, and the fixture nut left end, which is threaded in the main body, leads to part
Right end,
The positioning seat is equipped with fine motion block, and the fine motion block is connected with microswitch by the fine motion lever；It is described micro-
Dynamic switch installation on the body, and is equipped with rubber pad between the two；The fine motion lever is perpendicular to the piston rod；
The main body left end is also connected with the handle led in inside, is sequentially connected from left to right in the handle and is equipped with adjusting
Bar, the first steel ball, the first tower seat, the first spring and the second tower seat；The adjusting rod lateral surface is equipped with screw thread, the handle
Left side offers adjustment hole, and the adjusting rod is threaded in the adjustment hole；
Second spring is equipped in first spring, the second spring both ends are separately connected the first tower seat and second
Tower seat；The adjusting rod left end is fixed with adjusting nut.
Preferably, the internal diameter of the handle matches with first spring inside diameter.
Preferably, the outer diameter of the piston sheet is less than the internal diameter of main body.
Preferably, the section of the positioning seat is sector.
Preferably, the right end of the adjusting rod and the second tower seat is equipped with steel bead groove, the first tower seat and piston sheet
Left end also be provided with steel bead groove.
Preferably, the main body and the valve body connecting portion are equipped with sealing element.
The beneficial effects of the utility model are:
1. by fine motion lever come the variable quantity of transfer piston rod axial direction, while cooperating double-deck spring, so that relay
Precision be improved；
2. can by adjusting the relative position of adjusting rod and handle set, to realize the adjusting of adjusting rod left-right position,
The initial length of further adjustment spring, thus to realize that the detection to different pressures is adjusted；
3. by the way that steel ball is arranged in different parts, so that product internal structure is more convenient when rotating；
4. the ratio cavity that the internal diameter of valve body oil pocket is arranged is small, so that sealing effect is more preferable；
5. the structure of regulating device is simplified, so that its structure is more rationally brief.
Detailed description of the invention
Fig. 1 is a kind of Structure explosion diagram of the utility model；
Fig. 2 is the sectional view of valve body structure.
In figure: 1 main body, 11 piston sheets, 12 piston rods, 13 positioning seats, 14 fixture nuts, 2 handles, 21 adjusting rods, 22 adjust
Knothole, 230 first steel balls, 231 second steel balls, 241 first tower seats, 242 second tower seats, 25 first springs, 26 second bullets
Spring, 30 microswitches, 31 fine motion levers, 32 fine motion blocks, 33 rubber pads.
Specific embodiment
The utility model is further described with reference to the accompanying drawing:
As shown in Figure 1, 2, a kind of superposing type pressure switch including the main body 1 led in inside and is connected to 1 right end of main body
Valve body 3；The connecting portion of the two is equipped with sealing element.
It is equipped with positioning seat 13 in main body 1, is equipped with piston rod 12 in positioning seat 13；On the piston rod 12 in 13 left side of positioning seat
Equipped with piston sheet 11, the piston rod 12 on right side is arranged with fixture nut 14；The right end of piston rod 12 is located at the cavity 31 of valve body 3
It is interior；The internal diameter of piston rod 12 is matched with 31 internal diameter of cavity, there are when pressure on the right side of cavity 31, pushes piston rod 12 to moving to left
Dynamic, positioning seat 13 plays the role of positioning and guiding to piston rod 12, so that 12 direction of piston rod is parallel to spring always.It is fixed
Position seat 13 connects piston sheet 11, and positioning seat 13 is moved with piston sheet 11.
Fixture nut 14 is adjusted by the thread, be can control by the inner cavity right end for being threaded in main body 1 on the outside of it
Depth of the fixture nut 14 in 1 inner cavity of main body, so as to so as to install different positioning seats in inner cavity, also adjusting piston bar
12 critical distances to move right improve the precision of detection oil pressure to adapt to the different depth of cavity 31.
The internal diameter of 31 right part of cavity matches with 12 outer diameter of piston rod；31 right end of cavity is connected to oil pocket 32,32 internal diameter of oil pocket
Less than 31 internal diameter of cavity；
Positioning seat 13 is equipped with fine motion block 32, and fine motion block 32 is connected with microswitch 30 by fine motion lever 34；Microswitch
30 installations on the body 1, and are equipped with rubber pad 33 between the two；Fine motion lever 34 is perpendicular to piston rod 12；Fine motion lever 34
Angle is also adjusted, to adapt to different positioning seats 13 setting position different in main body 1.
1 left end of main body is also connected with the handle 2 led in inside, be sequentially connected in handle 2 from left to right equipped with adjusting rod 21,
First steel ball 230, the first tower seat 241, the first spring 25 and the second tower seat 242；21 lateral surface of adjusting rod is equipped with screw thread, hand
2 left side of handle offers adjustment hole 22, and adjusting rod 21 is threaded in adjustment hole 22.Handle 2 is fixedly installed, when adjusting rod 21
When rotation, since it is threadedly coupled with adjustment hole 22, adjusting rod 21 will relative adjustment hole 22 move left and right,
Second spring 26 is equipped in first spring 25,26 both ends of second spring are separately connected the first tower seat 241 and
Two tower seats 242；The specific structure shape of tower seat is as shown in Figure 1, for a kind of known shape.21 left end of adjusting rod is fixed with
Adjusting nut.When needing to rotate adjusting rod 21, order is rotated adjusting rod 21 by adjusting nut, and structure is simpler
It is single, it is also more practical.
The internal diameter of handle 2 matches with 25 internal diameter of the first spring.The outer diameter of piston sheet 11 is less than the internal diameter of main body 1.Positioning
The section of seat 13 is sector.
The right end of adjusting rod 21 and the second tower seat 242 is equipped with steel bead groove, the left end of the first tower seat 241 and piston sheet 11
It also is provided with steel bead groove.
A kind of working method of the utility model are as follows:
Establishment is installed by above-mentioned.Firstly, positioning seat 12 is installed, fixture nut 14 is fixed.Then pass through tune
It saves nut and rotates adjusting rod 21, move left and right it, so that the first tower seat 241 of 21 right end of adjusting rod be driven to move left and right.
Since the second tower seat 241 and 13 position of positioning seat are relatively fixed, so when the first tower seat 241 moves left and right
When, it is only that telescopic spring amount changes.When it is moved to left, decrement reduces, and when moving to right, the amount of compression increases.
When oil pressure increases in valve body oil pocket 32, oil pressure has been applied to the piston rod 12 in cavity 31, to the left by piston rod 12
It pushes, when oil body is less than power of the spring to piston rod 12 to the right to the power of piston rod 12 to the left, piston rod 12 is not moved.Work as oil body
It is greater than power of the spring to piston rod 12 to the right to the power of piston rod 12 to the left, piston rod 12 moves downward, to drive positioning seat
13 is mobile.
When positioning seat 13 is mobile, displacement drives fine motion block 32 mobile, and fine motion lever 34 is passed through in the displacement of fine motion block 32
Microswitch is passed to after amplification.
Microswitch 30 is mounted on the side wall of main body 1, and the face offers through-hole for wearing fine motion lever 34, fine motion
The side wall that lever 34 passes through main body 1 is well-known technique, and it is also well-known technique, fine motion lever that microswitch, which connects other electronic components,
34 specific working principles are also well-known technique, do not add to repeat herein.
" up and down " herein is reference with orientation in Fig. 1, is for that it is special not have other convenient for statement
Meaning.
In addition, the utility model is not limited to above embodiment, as long as it reaches this reality with essentially identical means
With novel technical effect, the protection scope of the utility model all should belong to.
Claims (7)
1. a kind of superposing type pressure switch, it is characterised in that: including the main body (1) led in inside and be connected to main body (1) right side
The valve body (3) at end；
Positioning seat (13) are equipped in the main body (1), are equipped with piston rod (12) in the positioning seat (13)；The positioning seat
(13) piston rod (12) on the left of is equipped with piston sheet (11), and the piston rod (12) on right side is arranged with fixture nut (14)；It is described
The right end of piston rod (12) is located in the cavity (31) of the valve body (3)；
The internal diameter of cavity (31) right part matches with the piston rod (12) outer diameter；Cavity (31) right end is connected to oil pocket
(35), oil pocket (35) internal diameter is less than the cavity (31) internal diameter；
Fixture nut (14) lateral wall is equipped with screw thread, and fixture nut (14) left end is threaded in the main body (1)
In lead to part right end,
The positioning seat (13) is equipped with fine motion block (32), and the fine motion block (32) is connected with microswitch by fine motion lever (34)
(30)；The microswitch (30) is mounted on the main body (1), and is equipped with rubber pad (33) between the two；The fine motion thick stick
Bar (34) is perpendicular to the piston rod (12)；
Main body (1) left end is also connected with the handle (2) led in inside, is sequentially connected and sets from left to right in the handle (2)
There are adjusting rod (21), the first steel ball (230), the first tower seat (241), the first spring (25) and the second tower seat (242)；It is described
Adjusting rod (21) lateral surface is equipped with screw thread, and handle (2) left side offers adjustment hole (22), adjusting rod (21) screw thread
It is connected in the adjustment hole (22)；
It is equipped with second spring (26) in first spring (25), second spring (26) both ends are separately connected the first tower
Seat (241) and the second tower seat (242)；Adjusting rod (21) left end is fixed with adjusting nut.
2. a kind of superposing type pressure switch according to claim 1, it is characterised in that: the internal diameter of the handle (2) with
First spring (25) internal diameter matches.
3. a kind of superposing type pressure switch according to claim 1, it is characterised in that: the outer diameter of the piston sheet (11)
Less than the internal diameter of main body (1).
4. a kind of superposing type pressure switch according to claim 1, it is characterised in that: the section of the positioning seat (13)
For sector.
5. a kind of superposing type pressure switch according to claim 1, it is characterised in that: the adjusting rod (21) and second
The right end of tower seat (242) is equipped with steel bead groove, and the left end of the first tower seat (241) and piston sheet (11) also is provided with steel ball
Slot.
6. a kind of superposing type pressure switch according to claim 1, it is characterised in that: the main body (1) and the valve
Body (3) connecting portion is equipped with sealing element.
7. a kind of superposing type pressure switch according to claim 1, it is characterised in that: the positioning seat (13) connects institute
State piston sheet (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820941157.8U CN208336088U (en) | 2018-06-19 | 2018-06-19 | A kind of superposing type pressure switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820941157.8U CN208336088U (en) | 2018-06-19 | 2018-06-19 | A kind of superposing type pressure switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208336088U true CN208336088U (en) | 2019-01-04 |
Family
ID=64771515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820941157.8U Expired - Fee Related CN208336088U (en) | 2018-06-19 | 2018-06-19 | A kind of superposing type pressure switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208336088U (en) |
-
2018
- 2018-06-19 CN CN201820941157.8U patent/CN208336088U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190104 Termination date: 20200619 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |