CN200955504Y

CN200955504Y - Starting control device for pump

Info

Publication number: CN200955504Y
Application number: CN 200620133412
Authority: CN
Inventors: 吴得昌
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-09-26
Filing date: 2006-09-26
Publication date: 2007-10-03
Anticipated expiration: 2016-09-26

Abstract

The utility model discloses a start controlling device of the pump. A film pressure switch is connected with a water pump head of the pump; a film and thin pressure plate with a large area can effectively sense the hydraulic pressure and can be matched with a cushion holding room with a matched capacity to be applied as the hydraulic pressure cushion, thus the stability of sensed hydraulic pressure can be increased, and the failure of brokenly start or stop due to the changing of current such as being too small or large is prevented; besides, a regulating screw and a turnplate that are arranged on the other side of the thin pressure plate can reach the target of changing the set pressure by regulating the turnplate; in addition, a regulating hole that is arranged on a shell and makes the customer regulate the trunplate easily.

Description

The start-up control device of pump

Technical field

The utility model is relevant for a kind of start-up control device of pump, refers in particular to a kind ofly to utilize the diaphragm pressure switch to connect the buffering room and produce the device with clear and definite and stable start-up control.

Background technique

The pressure control device of existing self water feeding compression pump, its pressure control device are to utilize containing groove to establish induction piston for group, make it lifting by the water pressure pushing induction piston and cooperate magnet and magnetic reed switch, reach the purpose of control primer pump.

But this kind structure is in actual use, finds to have many shortcomings, as:

1. utilize the water pressure pushing induction piston, the long-term use down, the sensitivity meeting of piston is subjected to the influence of water quality and dirt slow gradually, and then the demand of its control and precision just can be subjected to serious harmful effect.

2. the induction piston that includes magnet occupies suitable volume and weight, and its end area is little, and if the sensing sensitivity on historical facts or anecdotes border is not expection.

3. this structure is with the leakproof as induction piston of O shape ring, yet contacted with water for a long time and flooded by the O shape ring that rubber is made, easily living dry and astringent, be full of cracks and seepage.

4. hold and control owing to control action sensitivity is difficult to support, so in actual use, when usually being not difficult to find to diminish because of hydraulic pressure change or current, produce desultory startup, so be easy to cause motor load excessive and burn, damage, when working life, short and current leaked, can't find at once and again and again action cause waste.

Summary of the invention

The purpose of this utility model is to provide a kind of start-up control device of pump, and the start-up control device of this pump utilizes the diaphragm pressure switch to connect the buffering room and can produce and have clear and definite and stable start-up control.

The purpose of this utility model is achieved in that a kind of start-up control device of pump, and this start-up control device includes sleeve pipe, diaphragm pressure switch, buffering room, and utilizes pipe joint to be connected with on the water pump head of water pump; Establish the inlet duct of tool through hole on the housing of this diaphragm pressure switch, and be connected with pipe box, in enclosure interior film is set again, the thin dish of one side pressure pressing power of film, on the thin dish of pressure, be connected with one and adjust screw rod, adjust on the screw rod for sheathed spring, and with corresponding being spirally connected of rotating disk of a tool nose bar, the corresponding sensitive switch of nose bar, this sensitive switch is controlled the start of a motor; Be provided with a buffering room again between diaphragm pressure switch and water pump head.

The power line of the thin pressure switch of film and a frequency variator are connected with and are mounted in the switch box simultaneously; utilize the frequency conversion function and the control of this frequency variator; can effectively protect this start-up control device, and reach the function that can save electricity consumption, stationary flow when using, and the effect that can increase the service life.

Be provided with another diaphragm pressure switch at the inlet duct place.

Be equiped with a pressure gauge at the buffering room.

The housing end face of this diaphragm pressure switch is provided with adjusts the hole, and establishes a cock body in the corresponding group in adjustment hole.

This sensitive switch has a contact and b contact, and the ab contact is connected with an electronic controller circuit.

From the above mentioned, the utility model connects the water pump parting by the diaphragm type pressure switch, reach more stable start-up control by quite large-area pressure thin plate with the variation of water sensing flowing pressure, and frequent startup of difficult generation causes motor overload or damage or life-span to shorten; And gap fine-tuning by the rotating disk established of group in the diaphragm pressure switch and sensitive switch, with reach can make the pressure size with the need setting to meet the actual demand that send water; And be mounted on before the diaphragm pressure switch by a buffering room in addition, can make hydraulic pressure make suitable buffering through this buffering room earlier, with the stability of effective increase The whole control and startup; In addition, on housing, stay and establish an adjustment hole, can be beneficial to the adjustment that the user carries out rotating disk.

Description of drawings

Fig. 1: schematic perspective view of the present utility model.

Fig. 2: section combination schematic representation of the present utility model.

Fig. 3: the generalized section of diaphragm type pressure switch.

Fig. 4: another generalized section of diaphragm type pressure switch.

Fig. 5: schematic representation one is implemented in combination action of the present utility model.

Fig. 6: schematic representation two is implemented in combination action of the present utility model.

Fig. 7: of the present utility model another implemented schematic representation.

Fig. 8: another enforcement schematic representation of the present utility model.

Drawing reference numeral:

1 start-up control device, 11 pipe boxes

12 diaphragm pressure switches, 121 housings

1211 adjust hole 1212 cock bodys

122 inlet ducts, 1221 through holes

The thin dish of 123 films, 1231 pressure

124 adjust screw rod 1241 springs

125 rotating disks, 1251 inner bolt holes

1252 nose bars, 126 sensitive switches

1261 pressing plates, 127 power lines

128 frequency variators, 129 switch boxes

13 buffering rooms, 131 pressure gauges

14 pipe joints, 2 pumps

21 water pump heads, 22 inlet ducts

23 check valves, 24 motors

25 electronic controllers

Embodiment

At first, see also shown in Figure 1, start-up control device 1 of the present utility model includes pipe box 11, diaphragm pressure switch 12 and buffering room 13, and fit tube joint 14 is mounted on the water pump head 21 of pump 2 (as shown in Figure 2), and the inlet duct 22 of this pump 2 is provided with check valve 23 simultaneously and prevents that flow reversal from refluxing.

This diaphragm pressure switch 12 tools one housing 121 (the following Fig. 2 that joins in the lump), one end end face of housing 121 is provided with the adjustment hole 1211 that is permeable type, and establish a rubber system cock body 1212 adjusting the corresponding group in 1211 places, hole, and the inlet duct 122 of diaphragm pressure switch 12 is connected with pipe box 11, makes hydraulic pressure can direct reach film 123 in the housing 121; When the left and right start of film 123, can drive and adjust screw rod 124 and rotating disk 125, make it to produce and contact or breaks away from, and break away from thus or contact to control starting or stoping of motor 24 with sensitive switch 126 with its left and right sides start.

Please consult Fig. 3 again, shown in Figure 4, generalized section for this diaphragm pressure switch 12, the left side of film 123 is provided with the thin dish 1231 of a pressure, and be installed with in the left side of the thin dish 1231 of this pressure and adjust screw rod 124, this adjustment screw rod 124 is arranged with a spring 1241, and make inner bolt hole 1251 spiral shells of this an adjustment screw rod 124 and a rotating disk 125 establish, make rotating disk 125 can utilize inner bolt hole 1251 and adjustment its position (as shown in Figure 4) that is spirally connected mutually of adjusting screw rod 124, and the nose bar 1252 that makes the extension of rotating disk 125 left sides set up thus can be near the pressing plate 1261 of sensitive switch 126, and the rotation that utilizes rotating disk 125 is adjusted and pressing plate 1261 gaps, can reach the setting of different pressures, especially when carrying out the adjustment of rotating disk 125, cock body on the housing 121 1212 can be taken off, supply the user directly to adjust action with instrument by 1211 places, adjustment hole of housing 121; And can pushing tow after hydraulic pressure is entered by the through hole in the inlet duct 122 1221 film 123, the thin dish of the pressing pressure 1231 starts extrapolation again of this film 123, drive rotating disk 125 simultaneously by nose bar 1252 roof pressure pressing plates 1261, make sensitive switch 126 can produce required signal (consulting Fig. 5, Fig. 6).

Wherein, sensitive switch 126 has a contact and b contact, and a, b contact are connected (consulting Fig. 8) with an electronic controller 25 circuits; When the water inlet that is applied to water tower, after being starting motor 24, the hydraulic pressure of this water pump head 21 is lower, then film 123 can start (please joining Fig. 3, Fig. 4, Fig. 6 more in the lump), when high water level, water tower ball float contact effluent switch and sealing, the hydraulic pressure moment in the water pump head 21 rises, and makes film 123 starts and touches sensitive switch 126 to cut off motor 24 starts; In addition, also can be applicable to water pump head 21 and directly be connected with the situation of one or more water taps, as long as wherein there is a water tap to open, hydraulic pressure in the water pump head 21 is die-offed, make 1231 starts of the thin dish of film 123 and pressure, then starting motor 24 is done the action of water outlet to sensitive switch 126 by off commentaries on classics at once, till water tap is turned off.

And the buffering room 13 with suitable space and volume is connected with (consulting Fig. 1, Fig. 2, Fig. 5) with pipe box 11, when the hydraulic pressure of water pump head 21 changes, at first can cushion the absorption and the mitigation of room 13 through this, and reach stable purpose, make the hydraulic pressure that enters film 123 quite gentle average, again by the pressure sensitive of the thin dish 1231 of large-area pressure, with making the startup of motor 24 more stable, desultory meaningless starting or stoping can usually do not taken place; And adjust the gap of rotating disk 125 and sensitive switch 126, can reach different pressure and control motor 24 and start or stop (as Fig. 5, shown in Figure 6).

Please consult shown in Figure 7 again; can be connected with and simultaneously be mounted on switch box 129 in frequency variator 128 power line 127 of diaphragm pressure switch 12; in the time of can utilizing the frequency conversion function of this frequency variator 128 and be controlled in the low frequency running; can effectively reach power saving and make current stable, reach the purpose of protecting and increasing working life to protect this start-up control device 1.

Moreover, can install a diaphragm pressure switch 12 again additional in inlet duct 22 places, the state that is in low pressure during insufficient water sources with the detecting motor 24 that sends a notice shuts down, and prevents that motor 24 from damaging (ginseng Fig. 8).In addition, can install a pressure gauge 131 additional, be beneficial to for the user and watch the hydraulic pressure size at buffering room 13.

Comprehensive the above, the utility model is compared with known structure, has following advantages:

1. utilize the thin dish of large-area film and pressure, when actual sensed pressure, more than known work The plug area is big, so sensing is also comparatively clear and definite.

2. the film of whole area start is not relatively worried the impact that incrustation scale causes, and is difficult for producing Be full of cracks and seepage (non-rectilinear is friction slip back and forth) are so come well more than known O shape ring service life.

3. by cushioning being connected with of room, can increase the stability of sensing hydraulic pressure, directly auxiliary and increase The stability of control.

4. set the control that starts or stops of different pressures when wish, only need to adjust rotating disk and get final product, and visual Need to finely tune, quite accurate and clear and definite.

5. utilize the diaphragm pressure switch install additional in the inlet tube place, can reach by this switch detecting water source and be No enough, its low-pressure state in insufficient water sources motor that sends a notice is shut down, prevent that motor from damaging.

6. by at the Pressure gauge that installs additional of buffering room, be available for users to be beneficial to and watch the hydraulic pressure size.

Claims

1. the start-up control device of a pump is characterized in that: this start-up control device includes sleeve pipe, diaphragm pressure switch, buffering room, and utilizes pipe joint to be connected with on the water pump head of water pump; Establish the inlet duct of tool through hole on the housing of this diaphragm pressure switch, and be connected with pipe box, in enclosure interior film is set again, the thin dish of one side pressure pressing power of film, on the thin dish of pressure, be connected with one and adjust screw rod, adjust on the screw rod for sheathed spring, and with corresponding being spirally connected of rotating disk of a tool nose bar, the corresponding sensitive switch of nose bar, this sensitive switch is controlled the start of a motor; Be provided with a buffering room again between diaphragm pressure switch and water pump head.

2. the start-up control device of pump as claimed in claim 1 is characterized in that: the power line and a frequency variator of the thin pressure switch of film are connected with and are mounted in the switch box simultaneously.

3. the start-up control device of pump as claimed in claim 1 is characterized in that: be provided with another diaphragm pressure switch at the inlet duct place.

4. the start-up control device of pump as claimed in claim 1 is characterized in that: be equiped with a pressure gauge at the buffering room.

5. the start-up control device of pump as claimed in claim 1 is characterized in that: the housing end face of this diaphragm pressure switch is provided with adjusts the hole, and establishes a cock body adjusting the corresponding group in hole.

6. the start-up control device of pump as claimed in claim 1, it is characterized in that: this sensitive switch has a contact and b contact, and the ab contact is connected with an electronic controller circuit.