CN210397058U

CN210397058U - Pressure controller for pump

Info

Publication number: CN210397058U
Application number: CN201921307064.0U
Authority: CN
Inventors: 刘维东
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-13
Filing date: 2019-08-13
Publication date: 2020-04-24
Anticipated expiration: 2029-08-13

Abstract

The present case is a pressure controller for pump, includes: the device comprises a connecting nut, a cloth clamping diaphragm, a double-tooth top plate and a springboard which are sequentially connected, and also comprises a main pressure spring, an auxiliary pressure spring, a double-hook support assembly and a wiring frame assembly which are elastically connected with the springboard and are arranged in parallel; the double hook support subassembly includes extension spring and U-shaped support, connects the double hook support on the U-shaped support, still including connecting the movable contact piece subassembly on the double hook support and connecting the stationary contact terminal on the terminal block subassembly, extension spring one end hook is on the U-shaped support, and the other end hook is in on the springboard, the cylindrical hole that the stationary contact terminal wiring position of terminal block subassembly penetrated for the power supply line, cylindrical hole vertical direction has the screw hole that supplies the screw to revolve wrong compress tightly the electric wire. The device can realize the function of automatically controlling the starting and stopping of the motor of the water pump; the vertical direction of the cylindrical hole is provided with a threaded hole for screwing a screw to compress the electric wire; the optimized wire pressing mode is safer and more reliable than the original screw type wire pressing mode, and the service life of the wiring part of the wiring frame assembly is greatly prolonged due to the pressing force at the wiring part.

Description

Pressure controller for pump

Technical Field

The utility model relates to a pressure controller field for the pump, concretely relates to pressure controller for pump.

Background

The pressure difference of a pressure controller for a pump in the market at present, namely the pressure difference when the pressure controller is switched on and switched off is not large, generally about 0.1-0.2MPa, and the difference range, namely the distance between the action position and the release position of the pressure controller is not large, the pressure controller for the pump has small pressure maintaining water quantity and short pressure maintaining time due to small difference range, and due to the reasons of pipeline leakage and the like, the pressure in the pump or in a system is quickly lost and the water pump is restarted, namely, the pressure when the water pressure is increased to cut off the power supply of the pressure controller for the water pump is reduced to the starting pressure, namely the pressure when the water pressure is reduced to switch on the power supply of the pressure controller for the water pump, the water pump can be automatically started in a short time, and is usually started once in a few minutes, the starting frequency exists, and the service life.

At present, after a static contact terminal of a pressure controller for a pump in the market is connected, the maximum tensile force of the static contact terminal bears 8 kilograms of tensile force, the static contact terminal falls off, an inserting piece terminal is required to be arranged at the connecting position, otherwise, the connecting position is troublesome to lock and easy to fall off, and a connecting screw is easy to slip and cannot be locked tightly, so that unsafe factors such as electrical performance, poor reliability, poor contact of a contact part and the like are influenced; and the insulation board in the movable contact piece component is a plastic piece of injection molding type, the material is flame-retardant nylon PA66+ GF30, the material is easy to dissolve at a high temperature of 160 ℃, the nylon material is easy to age and break, the three factors directly cause the product of the whole pressure controller to lose efficacy and be unusable, the motor with overhigh load of the water pump is seriously heated and burnt, 80 percent of the products of the type used in the current market are complained of the same type, the service life of the water pump which is normally connected with the product can only be guaranteed to be 10 tens of thousands, moreover, the raw materials of the plastic piece are not easy to control, and the guarantee performance of each batch is poor, so that potential risks are generated for.

SUMMERY OF THE UTILITY MODEL

For overcoming the not enough of prior art, the utility model aims to provide a safe and reliable, great improvement life's pressure controller for pump.

In order to achieve the above object, the utility model discloses a following technical scheme realizes:

a pressure controller for a pump, comprising: the device comprises a connecting nut, a cloth clamping diaphragm, a double-tooth top plate and a springboard which are sequentially connected, and also comprises a main pressure spring, an auxiliary pressure spring, a double-hook support assembly and a wiring frame assembly which are elastically connected with the springboard and are arranged in parallel; the double hook bracket component comprises a tension spring, a U-shaped bracket, a double hook bracket connected to the U-shaped bracket, a movable contact piece component connected to the double hook bracket and a static contact terminal connected to the wiring frame component, one end of the tension spring is hooked to the U-shaped bracket, the other end of the tension spring is hooked to the springboard, the wiring position of the static contact terminal of the wiring frame component is a cylindrical hole penetrated by a power supply line, and the vertical direction of the cylindrical hole is provided with a threaded hole for screwing the screw to compress the power line.

Preferably, the pressure controller for a pump, wherein,

the wire leading-out coil is used for leading the wire to penetrate in or out and fixing the wire.

Preferably, the pressure controller for a pump, wherein,

the double hook bracket assembly includes a junction block assembly set screw for connecting the double hook bracket to the junction block assembly.

Preferably, the pressure controller for a pump, wherein,

the springboard, the double-hook bracket assembly and the wiring frame assembly are all arranged on a substrate.

Preferably, the pressure controller for a pump, wherein,

the connecting nut is fixed on one surface of the round base, the cloth clamping diaphragm is connected between the round base and the base plate through the cross pan head screw, and the cloth clamping diaphragm is provided with a pair of tooth top plates which are inserted into the base plate to prop against the springboard.

Preferably, the pressure controller for a pump, wherein,

the one end that springboard was kept away from to main pressure spring is equipped with the long screw, and the end of long screw is equipped with locknut, the locknut inboard is equipped with main pressure spring pressure regulating washer.

Preferably, the pressure controller for a pump, wherein,

and one end of the auxiliary pressure spring, which is far away from the springboard, is provided with a short screw, one end of the auxiliary pressure spring, which is close to the springboard, is provided with an auxiliary pressure spring gasket, and the reaction force of the auxiliary pressure spring on the springboard when stressed is smaller than the reaction force of the main pressure spring on the springboard when stressed.

Preferably, the pressure controller for a pump, wherein,

the double-hook-bracket-assembly-type double-hook-bracket assembly is characterized by further comprising a housing, wherein a pressure cavity is formed in the housing, and the cloth clamping diaphragm, the double-tooth top plate, the springboard, the main pressure spring, the auxiliary pressure spring, the double-hook-bracket assembly and the wiring bracket assembly are all positioned in the pressure cavity; and/or the cloth clamping membrane is made of rubber.

Preferably, the pressure controller for a pump, wherein,

the static contact terminal is made of copper.

Preferably, the pressure controller for a pump, wherein,

the movable contact piece assembly comprises a conductive part and an insulating plate, and the insulating plate is made of an epoxy resin plate.

The beneficial effect of present case: the device can realize the function of automatically controlling the starting and stopping of the motor of the water pump; moreover, the wiring part of the static contact terminal of the wiring frame assembly is a cylindrical hole for the power supply line to penetrate, and a threaded hole for screwing and pressing the wire by a screw is formed in the direction vertical to the cylindrical hole; the optimized wire pressing mode is safer and more reliable than the original screw type wire pressing mode, when in wiring, only the wire part needs to be plugged into the cylindrical hole, the screw is locked by a screwdriver, any wire can be used, the pressing force is large, and the service life is greatly prolonged; through testing, the connection position can not fall off under the tension of 30 kilograms.

Drawings

Fig. 1 is an exploded view of a pressure controller for a pump according to an embodiment of the present invention;

fig. 2 is a schematic view of a terminal block assembly in a pressure controller for a pump according to an embodiment of the present invention;

fig. 3 is a schematic view of a movable contact assembly of a pressure controller for a pump according to an embodiment of the present invention;

fig. 4 is a schematic view of a movable contact support of a pressure controller for a pump according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments and the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

As shown in fig. 1 to 4, the present embodiment provides a pressure controller for a pump, including: the device comprises a connecting nut 1, a cloth clamping diaphragm 4, a double-tooth top plate 5 and a springboard 7 which are sequentially connected, and further comprises a main pressure spring 16, an auxiliary pressure spring 13, a double-hook support assembly 15 and a wiring frame assembly 31 which are elastically connected with the springboard 7 and are arranged in parallel; double hook bracket assembly 15 includes extension spring 8 and U-shaped support 9, connects double hook bracket 11 on U-shaped support 9, still including connecting movable contact assembly 23 on double hook bracket 11 and connecting the stationary contact terminal 28 on terminal block assembly 31, extension spring 8 end hook is on U-shaped support 9, and the other end hook is in on springboard 7, the cylindrical hole 30 that the stationary contact terminal 28 wiring position of terminal block assembly 31 penetrated for the power supply line, and cylindrical hole 30 vertical direction has the screw hole 32 that supplies the screw to revolve to twist and compress tightly the electric wire.

The working principle of the pressure controller for the pump in the embodiment of the scheme is as follows: the pipeline pressure (generally refers to the water pressure in the pipeline of the water pump) enters the pressure cavity 100 from the connecting nut 1, acts on the cloth clamping diaphragm 4, the cloth clamping diaphragm 4 deforms and props against the double-tooth top plate 5 to move upwards from the springboard 7, the main pressure spring 16 and the auxiliary pressure spring 13 can enable different displacement heights to be generated under the same pressure, the main pressure spring 16 and the auxiliary pressure spring 13 can exert reverse downward pressure on the springboard 7, after the pressure continuously rises and reaches a certain position, the tension spring 8 generates instantaneous jump, the acting force enables the double-hook bracket assembly 15 to act, so that the movable contact piece assembly 23 is separated from the static contact terminal 28, the power supply is disconnected, and the motor stops working. When the pressure of the pipeline drops, the double-tooth top plate 5 moves downwards along with the bounce plate 7, and after reaching a certain position, the tension spring 8 jumps instantaneously, and the acting force makes the double-hook bracket assembly 15 act, so that the movable contact piece assembly 23 is connected with the static contact terminal 28 (contact), the power is switched on, and the motor starts to work. The water pump is circularly reciprocated, and the function of automatically controlling the starting and stopping of the motor of the water pump is realized. The closing and opening pressure values of the contacts depend on the main pressure spring 16, the downward pressure or stroke of the auxiliary pressure spring 13, the downward pressure main adjusting starting pressure and pressure difference (for short, closing) of the auxiliary pressure spring 13, and the downward pressure main adjusting stopping pressure value of the main pressure spring 16 and the action of the fine adjusting pressure difference (for short, opening).

The device can realize the function of automatically controlling the starting and stopping of the motor of the water pump; moreover, the wiring position of the static contact terminal 28 of the wiring frame component 31 is a cylindrical hole 30 for the power supply wire to penetrate, and the cylindrical hole 30 is provided with a threaded hole 32 for screwing and pressing the wire in the vertical direction; the optimized wire pressing mode is safer and more reliable than the original wire pressing mode, when in wiring, only the wire part needs to be plugged into the cylindrical hole 30, and the screw is locked by a screwdriver, so that any wire can be used, the pressing force is large, and the service life is greatly prolonged; through testing, the connection position can not fall off under the tension of 30 kilograms.

The wire outlet coil 33 is used for allowing the wire to penetrate in or out and fixing the wire, and the wire outlet coil 33 mainly plays a role in clamping and fixing the wire.

The double hook bracket assembly 15 includes a terminal block assembly set screw 10 for connecting the double hook bracket 11 with the terminal block assembly 31.

The connecting nut 1 is fixed on one side of the round base 3, the cloth clamping membrane 4 is connected between the round base 3 and the base plate 6 through the cross pan head screw 2, a double tooth top plate is arranged on the cloth clamping membrane 4 and inserted into the base plate 6 to support the springboard 7 so as to play a force transmission role, and the round base 3 is used for sealing one end of the pressure cavity 100.

The springboard 7, the double hook bracket assembly 15 and the wiring frame assembly 31 are all installed on a substrate 6.

One end of the main pressure spring 16, which is far away from the springboard 7, is provided with a long screw 19, the tail end of the long screw 19 is provided with a locknut 18, and the inner side of the locknut 18 is provided with a main pressure spring pressure regulating washer 17.

One end of the auxiliary pressure spring 13, which is far away from the springboard 7, is provided with a short screw 14, one end of the auxiliary pressure spring, which is close to the springboard 7, is provided with an auxiliary pressure spring gasket 12, and the reaction force of the auxiliary pressure spring 13 on the springboard 7 when being stressed is smaller than the reaction force of the main pressure spring 16 on the springboard 7 when being stressed.

The double-hook-bracket-component double-hook pressure-sensitive adhesive tape further comprises a cover shell 20, a pressure cavity 100 is formed in the cover shell 20, and the cloth clamping membrane 4, the double-tooth top plate 5, the springboard 7, the main pressure spring 16, the auxiliary pressure spring 13, the double-hook-bracket component 15 and the wiring bracket component 31 are all located in the pressure cavity 100; and/or the cloth clamping membrane 4 is made of rubber, the cloth clamping membrane 4 is made of EPDM or NBR rubber, and elastic nitrile butadiene rubber can also be used. The cover 20 together with the round bottom seat 3 encloses a pressure chamber 100. The cloth clamping membrane 4 is required to have no bubbles, no sand holes and no flash on the surface; and (3) testing the type: the diaphragm does not crack under the pressure of 3 Mpa; and (3) life test: the diaphragm can continuously work for 30 ten thousand times under the pressure of 1Mpa without cracking; rubber hardness: 65-70 IRHD. The cover 20 has a cover cap 21 thereon.

The static contact terminal 28 on the wiring frame component 31 is made of copper and is formed in one step by adopting a hot forging process. Copper has good mechanical property, good conductivity, good machinability and corrosion resistance; the hot forging and pressing are directly formed in one step or the copper plate is punched and then the cylinder is lathed, riveted, welded and spliced. The terminal part is a cylindrical hole through turning and surface processing, and the wiring structure is firmer and more reliable. The material of the static contact terminal 28 is preferably H62 brass; h62 brass is common brass with an average copper content of 62%, has good mechanical property, good plasticity in hot state and cold state, good machinability, easy brazing and welding and corrosion resistance; the wiring terminal part is a cylindrical hole 30 through direct one-step forming, turning and surface processing, and the structure is firmer and more reliable. The stationary contact terminal 28 has a stationary contact 29 thereon. The fact that the movable contact piece assembly 23 breaks the fixed contact terminal 28 means that the movable contact 25 and the fixed contact 29 break after action; the movable contact piece assembly 23 is connected to the stationary contact terminal 28 (contact) means that the movable contact 25 is connected to the stationary contact 29 after the operation.

The moving contact piece assembly 23 comprises a conductive part and an insulating plate 26, and the insulating plate 26 is made of an epoxy resin plate. The insulating plate 26 is formed by engraving or stamping, and the insulating plate 26 has high temperature resistance, good strength and better insulating property, so that the service life of the whole product is greatly guaranteed; the material has wide application in electronic products, strong mechanical property, high dielectric property, strong insulating property, high temperature resistance, wear resistance, aging resistance and other excellent properties, and the normal service life is more than 80 ten thousand times according to the water pump use test condition. Greatly prolonging the service life of the product. (the material has A-grade high temperature resistance and normal use at 180 ℃; because the material of the insulating plate 26 is changed and the assembling mode of the movable contact piece 24 is also adjusted to be the original pin type penetrating installation and the original riveting buckling installation, the installation is simple, convenient and firm. The riveting buckling device specifically refers to a fixing mode that the movable contact piece 24 and the movable contact support 22 provided with the movable contact piece 24 are connected in a riveting buckling mode, namely, the movable contact support 22 embraces the periphery of the insulating plate 26 of the movable contact piece 24 and then is riveted and buckled by a rivet. The conductive part of the movable contact piece assembly 23 comprises a movable contact piece 24 and a movable contact 25, the power supply is switched on and off and the movable contact piece 24 and the movable contact 25 are all acted on, and an insulating plate 26 is used for carrying the conductive part. The no-load test of the movable contact 25 needs to meet the experimental medium: compressed air, operating frequency: switch on for 0.5 second, switch off for 0.5 second; the movable contact 25 can continuously work for 30 ten thousand times without layering and cracking; the movable contact 25 is loaded with test experimental media: compressing air; voltage 220V, maximum working current 12A; operating frequency: switch on for 0.5 second, switch off for 0.5 second; the switch can work normally after more than 10 ten thousand times of continuous work. Refer to GB-T5587-2003 silver-based electrical contact basic shape, size, symbol and label, etc.

While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.

Claims

1. A pressure controller for a pump, comprising: the device comprises a connecting nut, a cloth clamping diaphragm, a double-tooth top plate and a springboard which are sequentially connected, and also comprises a main pressure spring, an auxiliary pressure spring, a double-hook support assembly and a wiring frame assembly which are elastically connected with the springboard and are arranged in parallel; the double hook bracket component comprises a tension spring, a U-shaped bracket, a double hook bracket connected to the U-shaped bracket, a movable contact piece component connected to the double hook bracket and a static contact terminal connected to the wiring frame component, one end of the tension spring is hooked to the U-shaped bracket, the other end of the tension spring is hooked to the springboard, the wiring position of the static contact terminal of the wiring frame component is a cylindrical hole penetrated by a power supply line, and the vertical direction of the cylindrical hole is provided with a threaded hole for screwing the screw to compress the power line.

2. The pressure controller for a pump according to claim 1, further comprising an outlet coil for passing the electric wire in or out and for fixing the electric wire.

3. The pressure controller for a pump of claim 1, wherein said double hook bracket assembly includes a terminal block assembly set screw for connecting the double hook bracket to the terminal block assembly.

4. The pressure controller for a pump of claim 1, wherein said diving board, double hook bracket assembly, and terminal block assembly are mounted on a substrate.

5. The pressure controller for pump according to claim 4, wherein the coupling nut is fixed to one side of the circular base, the fabric clamping diaphragm is coupled between the circular base and the base plate by means of a cross head screw, and the fabric clamping diaphragm has a double addendum plate inserted into the base plate against the jump plate.

6. The pressure controller for pump of claim 1, wherein the end of the main compression spring away from the springboard is provided with a long screw, the end of the long screw is provided with a locknut, and the inner side of the locknut is provided with a main compression spring pressure regulating washer.

7. The pressure controller for pump according to claim 1, wherein the end of the secondary compression spring away from the diving board is provided with a short screw, and the end close to the diving board is provided with a secondary compression spring gasket, and the reaction force of the secondary compression spring to the diving board when being stressed is smaller than that of the primary compression spring.

8. The pressure controller for the pump according to claim 1, further comprising a housing, wherein a pressure chamber is formed in the housing, and the cloth clamping diaphragm, the double-tooth top plate, the springboard, the main compression spring, the auxiliary compression spring, the double-hook bracket assembly and the wiring frame assembly are all located in the pressure chamber; and/or the cloth clamping membrane is made of rubber.

9. The pressure controller for a pump according to claim 1, wherein said stationary contact terminal is made of copper.

10. The pressure controller for a pump according to claim 1, wherein the movable contact member comprises an electrically conductive member and an insulating plate, the insulating plate being made of an epoxy resin plate.