CN217130441U

CN217130441U - Split type differential pressure signal transmitter

Info

Publication number: CN217130441U
Application number: CN202220778775.1U
Authority: CN
Inventors: 牛永春; 周国贞; 杨芝刚
Original assignee: Soliner Nanjing Intelligent Technology Co ltd
Current assignee: Nanjing Xunlian Hydraulic Technology Co ltd
Priority date: 2022-04-06
Filing date: 2022-04-06
Publication date: 2022-08-05
Anticipated expiration: 2032-04-06

Abstract

The utility model discloses a split type pressure differential signaling apparatus, it includes body one and body two, and body one and body two pass through the screw can dismantle the connection, are equipped with the slip subassembly in the body one, are equipped with micro-gap switch in the body two, and the slip subassembly includes spring, case and magnet, and the case divide into high-pressure chamber and low-pressure chamber with the cavity of body one, and the spring is located the one end in low-pressure chamber on locating the case, and magnet locates the other end of case and inhale the cooperation with micro-gap switch magnetism. The utility model discloses simple structure, design are compact, and split type structure passes through the screw and realizes dismantling the connection, can in time send out the police dispatch newspaper, reminds operating personnel to change or clear up the filter core, through unscrewing the screw, extracts the case, can directly clear up it, need not to pull down the whole from the filter of sender, need not frequent renew cartridge, has saved the time, has reduced the maintenance cost, and the practicality is strong, has good application prospect.

Description

Split type differential pressure signal transmitter

Technical Field

The utility model belongs to the technical field of the new forms of energy, concretely relates to split type pressure differential signaling apparatus.

Background

Among the gear box lubricating system of present wind power generation trade, after the filter worked for a period, impurity in the medium caused the jam of filter core easily, make the filter core up, low reaches differential pressure increase, it is more serious to block, differential pressure is big more, after differential pressure is big to a certain extent, the filter core can warp or even be damaged, make the filter core function inefficacy, can normally filter the medium, cause the pollution to follow-up equipment simultaneously, need change the filter core in order to guarantee system normal operating, so generally install the differential pressure signaling apparatus and detect the warning.

The differential pressure signal transmitter is directly mounted on the filter, the high-pressure port and low-pressure port of the differential pressure signal transmitter are respectively communicated with upstream and downstream of the filter, when the differential pressure of upstream and downstream is greater than the alarm pressure set by the signal transmitter, the microswitch is actuated, the circuit is switched on or off, and an alarm signal is sent out. Along with the operation of gear box, inevitable can produce the pollutant of multiple size, have metallic particle and non-metallic particle, these granules flow along with fluid, and the part can get into the high-pressure chamber of differential pressure signaling device, often takes place the phenomenon of case jamming or magnet surface adsorption metallic particle to lead to signaling device to become invalid, finally influence the operation of whole system.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a split type pressure difference signal transmitter with simple structure and convenient maintenance aiming at the defects of the prior art.

The utility model adopts the technical scheme as follows:

the utility model provides a split type pressure differential signaling apparatus, it includes body one and body two, and body one and body two pass through the screw can dismantle the connection, are equipped with the slip subassembly in the body one, are equipped with micro-gap switch in the body two, and the slip subassembly includes spring, case and magnet, and the case divide into high-pressure chamber and low pressure chamber with the cavity in the body one, and the spring is located the one end that lies in the low pressure chamber on locating the case, and magnet locates the other end of case and inhale the cooperation with micro-gap switch magnetism.

In the device, a first body is fixed on the filter through threads, and a third O-shaped ring used for guaranteeing the sealing property between the high-pressure cavity and the low-pressure cavity is arranged on the first body.

Furthermore, a high-pressure channel and a low-pressure channel are respectively arranged on the first body, the high-pressure channel is communicated with the high-pressure cavity, and the low-pressure channel is communicated with the low-pressure cavity.

The microswitch of the device is provided with a pressing sheet and is matched with the magnet through magnetic attraction of the pressing sheet and the magnet.

Preferably, a first O-ring for sealing is arranged at the joint of the first body and the second body, and a second O-ring for sealing the high-pressure cavity is further arranged on the first body.

The device also comprises an electrical connector which is connected with the microswitch through a lead.

The beneficial effects of the utility model are that:

the utility model has the advantages of simple structure and compact design, split type structure passes through the screw and realizes dismantling the connection, can in time send out the police dispatch newspaper, remind operating personnel to change or clear up the filter core, when pressure differential signaling device live time overlength, the case blocks up when serious, can directly twist off the screw, extracts the case, directly handles it, need not to pull down signaling device whole from the filter, reassemble after the cleanness is accomplished and can use, need not frequent change, the time of having saved has reduced the maintenance cost.

Drawings

Fig. 1 is a schematic structural view of the present invention;

in the figure: 1. a first body; 2. a valve core; 3. a magnet; 4. a second body; 5. a screw; 6. a microswitch; 7. an electrical connector; 8. a wire; 9. a gasket; 10. a fixed seat; 11. tabletting; 12. a first O-shaped ring; 13. an O-shaped ring II; 14. a spring; 15. an O-shaped ring III; 16. a high pressure chamber; 17. a low pressure chamber; 18. a high pressure channel; 19. a low pressure channel.

Detailed Description

The invention will be further described with reference to the accompanying drawings:

as shown in fig. 1, the utility model discloses it is including body one 1 and body two 4, body one 1 and body two 4 can dismantle the connection through screw 5, be equipped with the slip subassembly in body one 1, be equipped with micro-gap switch 6 in the body two 4, the slip subassembly includes spring 14, case 2 and magnet 3, case 2 divide into high-pressure chamber 16 and low pressure chamber 17 with the cavity in body one 1, spring 14 locates the one end that lies in low pressure chamber 17 on case 2, magnet 3 locates the other end of case 2 and inhale the cooperation with micro-gap switch 6 magnetism.

After the valve core is used for a long time, the first body 1 is separated from the second body 4 by detaching the screw 5, the valve core 2 and the magnet 3 are exposed, the valve core can be directly cleaned, and the valve core can be continuously used after being installed again.

In the device, a body I1 is fixed on the filter through threads, an O-shaped ring III 15 used for ensuring the sealing property between a high-pressure cavity 16 and a low-pressure cavity 17 is arranged on the body I1, and the high-pressure cavity 16 and the low-pressure cavity 17 can be separated by the O-shaped ring III 15.

The first body 1 is provided with a high-pressure channel 18 and a low-pressure channel 19 respectively, the high-pressure channel 18 is communicated with the high-pressure cavity 16, and the low-pressure channel 19 is communicated with the low-pressure cavity 17.

The microswitch 6 is provided with a pressing sheet 11, and the microswitch 6 is matched with the magnet 3 in a magnetic attraction way through the pressing sheet 11. The spring 14 can provide return elastic force for the valve core 2 to keep the valve core 2 at different working states. The valve core 2 and the magnet 3 are pressed on the second body 4 together under the action of the spring 14, the pressing sheet 11 is attracted by the magnetic force of the magnet 3 and is close to the magnet 3, so that the button of the microswitch 6 is pressed, and the microswitch 6 keeps a normally closed state.

When the pressure difference between the high-pressure cavity 16 and the low-pressure cavity 17 is larger than the elastic force of the spring, the valve core 2 can be gradually far away from the second body 4 until the magnet 3 cannot adsorb the pressing sheet 11 of the microswitch 6, the pressing sheet 11 resets, and the output signal of the microswitch 6 is changed from normally closed to normally open under the action of the self-resetting force.

When the pressure difference between the high pressure cavity 16 and the low pressure cavity 17 is smaller than the elastic force of the spring, the valve core 2 is reset, the pressing sheet 11 is adsorbed by the magnet 3 again, and the microswitch 6 keeps the normally closed state again.

The connecting part of the first body 1 and the second body 4 is provided with a first O-shaped ring 12 for sealing, and the first body 1 is also provided with a second O-shaped ring 13 for sealing the high-pressure cavity 16, so that impurities and water are prevented from entering, and the waterproof performance of the product is improved.

The device also comprises an electrical connector 7, wherein the electrical connector 7 is connected with the microswitch 6 through a lead 8.

The utility model discloses a use as follows:

when the device is used, the first body 1 of the device is fixed on a filter through threads, the high-pressure channel 18 is communicated with the high-pressure cavity 16, the low-pressure channel 19 is communicated with the low-pressure cavity 17, when the pressure difference between the high-pressure cavity 16 and the low-pressure cavity 17 is larger than the elastic force of a spring, the valve core 2 can be gradually far away from the second body 4, the magnet 3 cannot adsorb the pressing sheet 11 of the microswitch 6, the pressing sheet 11 resets, the microswitch 6 outputs a signal from normal close to normal open under the action of self-reset force, an alarm is given out to prompt a worker to clean the filter core 2, the screw 5 is removed at the moment, the first body 1 is separated from the second body 4, the valve core 2 and the magnet 3 are exposed and can be directly cleaned, and the first body 1 and the second body 4 are installed through the screw 5 after the cleaning is finished and can be continuously used; when the pressure difference between the high-pressure cavity 16 and the low-pressure cavity 17 is smaller than the elastic force of the spring, the valve core 2 is reset, the pressing sheet 11 is adsorbed by the magnet 3 again, and the microswitch 6 is kept in a normally closed state again.

Other processes of the utility model can adopt the prior art.

The best embodiment of the present invention has been clarified, and the further expansion made by the person skilled in the art to the present invention all falls into the protection scope of the present invention.

Claims

1. The utility model provides a split type pressure differential signaling apparatus, its characterized in that includes body one (1) and body two (4), the connection can be dismantled through screw (5) in body one (1) and body two (4), be equipped with slip subassembly in body one (1), be equipped with micro-gap switch (6) in body two (4), slip subassembly includes spring (14), case (2) and magnet (3), case (2) divide into high-pressure chamber (16) and low-pressure chamber (17) with the cavity in body one (1), spring (14) are located on case (2) lie in the one end of low-pressure chamber (17), magnet (3) are located the other end of case (2) and with micro-gap switch (6) magnetism is inhaled the cooperation.

2. The split type differential pressure signaling device according to claim 1, wherein the first body (1) is fixed on the filter through threads, and the first body (1) is provided with a third O-ring (15) for ensuring the tightness between the high pressure chamber (16) and the low pressure chamber (17).

3. The split type differential pressure signaling device according to claim 1, wherein the first body (1) is provided with a high pressure channel (18) and a low pressure channel (19), the high pressure channel (18) is communicated with the high pressure cavity (16), and the low pressure channel (19) is communicated with the low pressure cavity (17).

4. The split type differential pressure signaling device as claimed in claim 1, wherein the microswitch (6) is provided with a pressing sheet (11), and the microswitch (6) is magnetically matched with the magnet (3) through the pressing sheet (11).

5. The split type differential pressure signal transmitter as claimed in claim 1, wherein a first O-ring (12) for sealing is arranged at the joint of the first body (1) and the second body (4), and a second O-ring (13) for sealing the high pressure cavity (16) is further arranged on the first body (1).

6. The split type differential pressure signal generator according to claim 1, characterized by further comprising an electrical connector (7), wherein the electrical connector (7) is connected with the microswitch (6) through a lead (8).