CN212838420U

CN212838420U - Opening and closing device for pump body

Info

Publication number: CN212838420U
Application number: CN202021716759.7U
Authority: CN
Inventors: 黄景丰
Original assignee: Walrus Pump Industry Co ltd
Current assignee: Walrus Pump Industry Co ltd
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2021-03-30
Anticipated expiration: 2030-08-18

Abstract

The utility model discloses a switching device of pump body, it is including a control box, a buoyancy subassembly and one by the locating part of a metal silk thread bending type, this buoyancy subassembly is including a member and a floater, this member moves up and down between this control box and this locating part, and this member is equipped with two block stopper pieces up and down at an interval, this floater moves between these two block stopper pieces, when this member rebound to the maximum height that can remove, the height that should be located the block stopper piece of below establishes the end with the cover of this locating part and is the level form, therefore, the utility model discloses a switching device's of the pump body stops to draw water highly to be less than current switching device's the height that stops to draw water, improves the switching device's of current submerged pump shortcoming, thereby provides a switching device of the pump body that can draw water to lower water level.

Description

Opening and closing device for pump body

Technical Field

The utility model relates to a liquid pump indicates a switching device of the pump body especially.

Background

Referring to fig. 5 and 6, a switching device 80 of a conventional submersible pump is connected to a pump body 90, and the switching device 80 includes a buoyancy assembly 81 and a control box 82, the buoyancy assembly 81 includes a rod member 811, a driving magnetic block 812, two locking blocks 813 and a floating ball 814, the rod member 811 can move up and down, the driving magnetic block 812 is combined with the top end of the rod member 811, the two locking blocks 813 are fixed on the rod member 811 at intervals, the floating ball 814 is sleeved on the rod member 811 and located between the two locking blocks 813, further, a positioning seat 817 is disposed at the bottom of the buoyancy assembly 81 for the rod member 811 to slide therein; the control box 82 includes a housing 821, a micro switch 822 and a swinging member 823, the housing 821 is combined with the pump body 90 and is located at an end near the rod 811 where the driving magnet 812 is located, the micro switch 822 is located in the housing 821 and is electrically connected with the pump body 90, the swinging member 823 is located in the housing 821 and can be connected with the micro switch 822 in a swinging manner, and the swinging member 823 has a stressed magnet 827, the stressed magnet 827 can be located at a position near the driving magnet 812 in a swinging manner, the stressed magnet 827 has a different magnetism from the driving magnet 812, so that the swinging member 823 can swing relative to the micro switch 822 under the magnetic force of the driving magnet 812.

When the water surface of the ponding place of the submersible pump continuously rises, as shown in fig. 5 and 6, the floating ball 814 moves upwards due to buoyancy, abuts against the upper retaining block 813, and drives the rod member 811 to move upwards, at this time, when the driving magnet 812 continuously moves towards the housing 821 along with the rod member 811 and reaches the maximum height, due to the difference in magnetism, the driving magnet 812 provides a magnetic attraction force to the stressed magnet 827, so that the magnetic attraction force can make the swinging member 823 swing relative to the micro switch 822, move towards the position near the driving magnet 812 at the bottom of the control box 82, and start the micro switch 822, and further make the motor 91 of the pump body 90 start to operate, thereby starting to pump water.

As shown in fig. 7 and 8, as the accumulated water is pumped out, the water level gradually decreases, and when the floating ball 814 falls to abut against the lower detent block 813 along with the water level, the rod member 811 is driven to move downward, so that the driving magnetic block 812 is far away from the stressed magnetic block 827, and the swinging member 823 swings back to the original position, thereby closing the pump body 90 and ending the water pumping.

However, as shown in fig. 7, since the floating ball 814 still needs to move downward for a stroke after abutting against the lower locking block 813 to make the magnetic attraction of the driving magnet 812 not enough to continuously attract the stressed magnet 827, the lower locking block 813 must be located at a distance from the positioning seat 817 to be located at a pumping stop height H₀When the water level falls to the height H for stopping pumping water₀Thereafter, the pump body 90 is closed, as shown in FIG. 7, to the pumping stop height H₀The impeller 92 is higher than the pump body 90, so the switch device 80 of the prior art submerged pump has the problem that the water level for stopping pumping water is too high, and the improvement is needed.

SUMMERY OF THE UTILITY MODEL

For the switching device who solves current submerged pump has the too high problem of water level that stops drawing water, the utility model provides a switching device of the pump body to the ponding that provides the ponding department that sets up the submerged pump can be taken out to lower water level, just closes the efficiency of submerged pump, further explains as follows.

The utility model provides a switching device of the pump body, it is installed on a pump body, and the switching device of this pump body is including:

the control box is provided with a shell, a guide groove and a swinging piece, the shell is combined with the pump body, the guide groove is arranged on one side of the shell and is provided with a downward opening, the swinging piece is arranged in the shell and can swing to enable the pump body to start to operate, and the swinging piece is provided with a first magnetic block which can swing to be positioned close to the guide groove;

the buoyancy assembly is provided with a rod piece and a floating ball, the top end of the rod piece extends into the guide groove of the control box and can move up and down, the rod piece is provided with a second magnetic block and two clamping blocks, the second magnetic block is arranged at the top end of the rod piece, the two clamping blocks are fixedly arranged on the rod piece at intervals up and down, and the floating ball is sleeved on the rod piece and can move between the two clamping blocks; and

the limiting piece is provided with a pivoting end and a sleeving end, the pivoting end is pivoted at the position of the pump body close to the bottom, and the sleeving end is sleeved on the rod piece and positioned between the floating ball and the clamping block positioned below;

when the second magnetic block is close to the top of the guide groove, the magnetic force between the second magnetic block and the first magnetic block enables the swinging piece to swing, and the height of the clamping block positioned below and the sleeving end of the limiting piece are horizontal.

Further, in the switching device of the pump body, the sleeving end is annular, and the inner diameter of the sleeving end is larger than the outer diameter of the rod piece and smaller than the width of the clamping block positioned below.

Further, in the switching device of the pump body, the limiting member has a turning section, the turning section is located at a position on the limiting member close to the pivot end, and the height of the turning section is lower than that of the pivot end.

Further, in the switch device of the pump body, when the second magnetic block is close to the top of the guide groove, the height of the turning section is lower than the height of the pivot end and the height of the sleeving end.

Still further, in the switching device of the pump body, the lower latch block of the two latch blocks is disposed at the bottom end of the rod.

Preferably, in the switching device of the pump body, the first magnetic block and the second magnetic block have opposite magnetism.

Preferably, the switch device of the pump body, wherein the limiting member is formed by bending a metal wire.

Borrow by foretell technical characteristic, the utility model discloses a switching device of the pump body establishes the end through the cover of this locating part, cooperatees with the guide slot of this control box, restricts the moving direction of this member, and does not need current switching device's positioning seat, consequently, when this second magnetic path is close to this guide slot top, the end is established with the cover of this locating part to the height of this stopper that should be located the below, consequently, the utility model discloses a switching device of the pump body stops to draw water highly to be less than current switching device's the height that stops to draw water, consequently, the utility model discloses effectively solve current submerged pump's switching device's shortcoming, thereby provide one kind and can draw water to the switching device of the pump body of lower water level.

Drawings

Fig. 1 is a side sectional view of the preferred embodiment of the present invention.

Fig. 2 and 3 are schematic views illustrating the operation of the preferred embodiment of the present invention.

Fig. 4 is a perspective view of a position-limiting member according to a preferred embodiment of the present invention.

Fig. 5 and 6 are schematic views showing operations of the conventional switch device of the pump body at the time of activation.

Fig. 7 and 8 are schematic views showing the operation of the conventional pump body when the opening and closing device is closed.

Detailed Description

The following description of the preferred embodiments of the present invention will be made in conjunction with the drawings and the accompanying drawings to further illustrate the technical means adopted to achieve the objects of the present invention.

The utility model relates to a switching device of pump body, its preferred embodiment is shown in fig. 1 to fig. 3, and this switching device is installed on a pump body 90, and this switching device includes a control box 10, a buoyancy module 20 and a locating part 30, wherein:

the control box 10 is provided with a housing 11, a guide groove 12, a swinging member 13 and a microswitch 14, wherein the housing 11 is combined with the pump body 90, and a containing chamber 111 is formed inside; the guide groove 12 is convexly arranged at the bottom of the shell 11 and is provided with a downward opening 121; the swinging member 13 is disposed in the housing 11, the swinging member 13 has a first magnetic block 131, and the first magnetic block 131 can swing to be located at a position close to the guide slot 12; the micro switch 14 is disposed in the chamber 111 of the housing 11, combined with the swinging member 13, and electrically connected to the motor 91 of the pump body 90, so that the swinging member 13 can swing to trigger the micro switch 14, and further the pump body 90 is powered on to start operation.

The buoyancy module 20 is provided with a rod 21 and a floating ball 22, the top end of the rod 21 extends into the guide slot 12 through the opening 121 of the guide slot 12, and thus can be guided by the guide slot 12 to move up and down, the rod 21 is provided with a second magnetic block 211 and two latching blocks 212, the second magnetic block 211 is provided at the top end of the rod 21, and when the second magnetic block 211 is close to the top of the guide slot 12, the swinging member 13 swings under the action of magnetic force between the second magnetic block 211 and the first magnetic block 131, in the preferred embodiment of the present invention, the second magnetic block 211 and the first magnetic block 131 have opposite magnetism, so when the second magnetic block 211 is close to the top of the guide slot 12, the first magnetic block 131 receives the magnetic attraction force of the second magnetic block 211, and the swinging member 13 swings towards the direction of the second magnetic block 211; the two locking blocks 212 are fixed on the rod 21 at intervals up and down, wherein the locking block 212 above can adjust the height position according to the requirement of the user, if the pump body 90 is started when the water level is lower, the height position of the locking block 212 is adjusted down, otherwise, the height position is adjusted up, and the locking block 212 below is arranged at the bottom end of the rod 21, so as to reduce the water level for stopping pumping water.

As shown in fig. 1 to 3, the floating ball 22 is sleeved on the rod 21 and can move up and down between the two locking blocks 212, when the floating ball 22 moves up due to the rising of the water surface and the buoyancy, the locking block 212 located above is pushed up, the rod 21 is pushed up by the floating ball 22 along with the locking block 212 located above, when the floating ball 22 pushes down against the locking block 212 located below along with the falling of the water surface, the rod 21 moves down along with the locking block 212 located below and is away from the control box 10, the second magnetic block 211 is away from the first magnetic block 131, and the swinging member 13 swings back to the original position, and the pump body 90 is closed through the microswitch 14, and the pumping is finished.

As shown in fig. 2 to 4, the limiting member 30 is formed by bending a metal wire, or formed by other materials, and has a pivot end 31, a set end 32, and a turning section 33, wherein the pivot end 31 and the set end 32 are respectively formed at two ends of the limiting member 30, and the pivot end 31 is pivoted to a position of the pump body 90 near the bottom, so that the limiting member 30 can swing relative to the pump body 90; the sleeving end 32 is sleeved on the rod 21 and located between the floating ball 22 and the lower clamping block 212 of the two clamping blocks 212, when the second magnetic block 211 is close to the top of the guide groove 12, the sleeving end 32 is horizontal, as shown in fig. 4, the sleeving end 32 is annular, and the inner diameter of the sleeving end 32 is larger than the outer diameter of the rod 21 and smaller than the width of the lower clamping block 212, so that the sleeving end 32 can move relative to the rod 212; the turning section 33 is located on the position of the limiting member 30 close to the pivot end 31, the height of the turning section 33 is lower than the height of the pivot end 31, and when the second magnetic block 211 is close to the top of the guide slot 12, the height of the turning section 33 is lower than the height of the pivot end 31 and the height of the sleeving end 32.

With the above technical features, as shown in fig. 2 and 3, the switch device of the pump body of the present invention cooperates with the guiding groove 12 of the control box 10 through the cover-mounting end 32 of the limiting member 30 capable of swinging, and restricts the moving direction of the rod member 21 without the positioning seat 817 of the existing switch device 80, so that when the second magnetic block 211 is close to the top of the guiding groove 12, the lower latch 212 can be located at a pumping stop height H₁In the preferred embodiment of the present invention, as shown in fig. 2, the top surface of the lower latch 212 and the set end 32 are horizontal and abut against each other, and have a lower position relative to the latch 813 of the conventional switch device 80, so that the float 22 can be lowered to the pumping stop height H as the water level drops₁Then, the locking block 212 located below is indirectly pushed by the sleeving end 32, so that the rod 21 moves downward and the pump 90 is closed.

To sum up, the utility model discloses a switching device of the pump body, it stops to draw water height H₁The height of the impeller 92 of the pump body 90 is the same as that of the pumping stop height H of the existing switch device 80₀Therefore, the utility model discloses effectively solve the shortcoming of current submerged pump's switching device 80, thereby provide one kind and can draw water to the switching device of the pump body of lower water level.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the above preferred embodiment, but not to limit the present invention, any person skilled in the art can make modifications or changes to equivalent embodiments without departing from the scope of the present invention, and any simple modification, equivalent change and modification made to the above embodiments by the technical spirit of the present invention still fall within the scope of the present invention.

Claims

1. The utility model provides a switching device of pump body which characterized in that installs on a pump body, and the switching device of this pump body includes:

2. The apparatus of claim 1, wherein the engaging end is annular, and the engaging end has an inner diameter larger than the outer diameter of the rod and smaller than the width of the lower engaging block.

3. The apparatus according to claim 1, wherein the position-limiting member has a turning section, the turning section is located on the position-limiting member near the pivot end, and the height of the turning section is lower than the height of the pivot end.

4. The switch device for pump body according to claim 2, wherein when the second magnetic block is close to the top of the guiding slot, the height of the turning section is lower than the height of the pivoting end and the sleeving end.

5. The apparatus according to any one of claims 1 to 4, wherein the lower one of the two locking blocks is disposed at the bottom end of the rod.

6. The switching device for a pump body according to any one of claims 1 to 4, wherein the first magnetic block and the second magnetic block have opposite magnetic polarities.

7. The device for opening and closing a pump body according to any one of claims 1 to 4, wherein the retainer is formed by bending a metal wire.