Electric pump controller

Abstract

The utility model provides an electric pump controller, and belongs to the technical field of electric pump controllers. The problem that an existing electric pump controller is relatively poor in stability is solved. The electric pump controller comprises a shell, a hanging rod, a microswitch and a rocker arm, the microswitch and the rocker arm are both arranged in the shell, the top of the hanging rod is fixedly connected with a transversely-arranged sliding rod, the two ends of the sliding rod are provided with a first magnet and a second magnet respectively, a sliding cylinder is arranged in the shell, and the sliding rod is embedded in the sliding cylinder in a vertically sliding mode. The middle of the rocker arm is hinged to the shell, a third magnet and a fourth magnet are arranged at the two ends of the rocker arm respectively, the first magnet is located under the third magnet, the first magnet and the third magnet are arranged in a like-pole repulsion mode, the second magnet is located under the fourth magnet, and the second magnet and the fourth magnet are arranged in an unlike-pole attraction mode. The end, provided with the second magnet, of the rocker arm rotates downwards to turn on the microswitch. The electric pump controller has the advantage that the stability of the controller is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric pump controllers and relates to an electric pump controller, in particular to an electric pump float controller. Background Art

[0002] The float controller is a simple and commonly used liquid level control device, which is widely used in water towers, pools, industrial storage tanks and other occasions where automatic liquid level control is required. Its working principle is based on the buoyancy principle and is mainly composed of float, lever, magnet, reed switch and other components.

[0003] Existing float controllers, for example, Chinese patent literature discloses an electric pump float controller [patent number: 201920113593.0; application publication number: CN209761696U], which includes a shell, in which a rocker arm, a magnet, a switch bracket and a micro switch are arranged; it also includes a suspension rod arranged in a vertical direction, the top of the suspension rod is in the shell, a float is sleeved in the middle of the suspension rod, and a positioning block is sleeved at the bottom of the suspension rod, and the positioning block is below the float; a through hole is opened in the middle of the positioning block in the vertical direction, and the diameter of the through hole is slightly larger than the outer diameter of the lower part of the suspension rod, the positioning block can move up and down along the suspension rod, and a transversely arranged threaded through hole is opened on the side wall of the positioning block, and screws matching the threaded through hole are also included, and the positioning block is fixed to the suspension rod by the screws.

[0004] The float controller of this structure is provided with a first magnet at one end of the rocker arm and a second magnet at the top of the suspension rod. When the suspension rod moves upward under the action of the float ball, it will drive the second magnet to move upward. When the second magnet moves upward, it will attract and pull the first magnet, thereby driving the rocker arm to rotate and turning on the micro switch. When the water level drops, the second magnet moves down with the suspension rod, the first magnet returns to its original position, and the micro switch is turned off. However, the float controller of this structure only realizes the rotation of the rocker arm through the magnets of the first magnet and the second magnet. The magnetic suction force is relatively weak, and there is a problem that the suction force is not enough to drive the rocker arm to rotate and turn on the micro switch, and the stability is relatively poor. Summary of the invention

[0005] The utility model aims to solve the above problems in the prior art and proposes an electric pump controller, the technical problem to be solved is how to improve the stability of the controller.

[0006] The purpose of the utility model can be achieved through the following technical solutions: an electric pump controller, comprising a shell, a suspension rod, a micro switch and a rocker arm, the micro switch and the rocker arm are both arranged in the shell, and is characterized in that a transversely arranged sliding rod is fixedly connected to the top of the suspension rod, and a first magnet and a second magnet are respectively arranged at two ends of the sliding rod, a sliding cylinder is provided in the shell, and the sliding rod can be slid up and down and embedded in the sliding cylinder, the middle part of the rocker arm is hinged to the shell, and a third magnet and a fourth magnet are respectively arranged at two ends of the rocker arm, the first magnet is located directly below the third magnet, and the first magnet and the third magnet are arranged with like poles to repel each other, the second magnet is located directly below the fourth magnet, and the second magnet and the fourth magnet are arranged with opposite poles to attract each other, and the end of the rocker arm having the second magnet can turn downward to open the micro switch.

[0007] During operation, the upward movement of the suspension rod drives the sliding rod, the first magnet and the second magnet upward. Since the first magnet repels the third magnet and the second magnet attracts the fourth magnet, the rocker arm is driven to rotate, so that the rocker arm acts on the micro switch, the micro switch is turned on, and the electric pump is started; the downward movement of the suspension rod drives the sliding rod, the first magnet and the second magnet downward, thereby weakening the repulsive force between the first magnet and the third magnet, and weakening the attraction between the second magnet and the fourth magnet, so that the rocker arm cannot press the micro switch, the micro switch is turned off, and the electric pump is turned off. The electric pump controller has two sets of magnetic force combinations through the mutual repulsion between the first magnet and the third magnet and the mutual attraction between the second magnet and the fourth magnet, which can ensure the rotation of the rocker arm, so that the micro switch can be turned on or off, the electric pump can be started and shut down, and the stability of the controller is improved.

[0008] In the above-mentioned electric pump controller, the sliding cylinder includes a first cylinder, a second cylinder, a third cylinder, a first transition channel and a second transition channel, the second cylinder is located between the first cylinder and the third cylinder, the first cylinder and the second cylinder are connected through the first transition channel, the second cylinder and the third cylinder are connected through the second transition channel, the first magnet is located in the first cylinder, the second magnet is located in the third cylinder, the top end of the suspension rod is movably arranged in the second cylinder, and the sliding rod passes through the first transition channel and the second transition channel. This structure makes the sliding cylinder compatible with the structure at the top of the suspension rod, and the sliding cylinder plays a guiding role, improving the stability of the movement of the first magnet and the second magnet, thereby improving the stability of the controller.

[0009] In the above electric pump controller, the top of the third cylinder is higher than the top of the first cylinder in the vertical direction, and the second magnet is higher than the first magnet in the vertical direction. This structure is adapted to the initial position of the rocker arm, so that the magnetic forces on both sides of the rocker arm are as equal as possible, thereby improving the stability of the rocker arm rotation and thus improving the stability of the controller.

[0010] In the above-mentioned electric pump controller, the micro switch includes a protruding contact, the rocker arm has a protruding portion protruding downward, the protruding portion is closer to the fourth magnet than the third magnet, and the contact contacts the protruding portion. This structure enables the rocker arm to better drive the contact to move, so that the micro switch is turned on, and the stability of the controller is improved.

[0011] In the above-mentioned electric pump controller, a rotating cover is rotatably provided on the housing, a fifth magnet is fixedly connected to the rotating cover, and the rotating cover can make the fifth magnet be located directly above the fourth magnet, and the fifth magnet and the fourth magnet are arranged to repel each other with the same polarity. During manual control, the fifth magnet is moved directly above the fourth magnet by rotating the rotating cover, and the repulsive force between the fifth magnet and the fourth magnet can drive the rocker to rotate, so that the micro switch is turned on, thereby improving the stability of the controller.

[0012] In the above-mentioned electric pump controller, the bottom edge of the rotary cover has a recessed rotation groove, the housing is fixedly connected with a terminal block, the terminal block is located in the rotation groove, and the rotary cover can be rotated to make the terminal block abut against the groove walls on both sides of the rotation groove. The terminal block plays a role in wiring and also plays a role in positioning. When the rotary cover is rotated, when the terminal block abuts against one of the groove walls of the rotation groove, the fifth magnet is located directly above the fourth magnet, and the controller is in a manual state. When the terminal block abuts against the other groove wall of the rotation groove, the fifth magnet is located obliquely above the fourth magnet and as far away from the third magnet and the fourth magnet as possible at the same time, the controller is in an automatic state.

[0013] In the above-mentioned electric pump controller, the center of the top of the housing has a hinge column protruding upward, and the middle of the rotary cover has a hinge cylinder, which is sleeved outside the hinge column so that the rotary cover can rotate around the housing, and a bolt is fixed in the hinge column. The inner side wall of the hinge cylinder has a ring-shaped step surface, and the circumferential edge of the bolt head can abut against the step surface to position the rotary cover and the housing axially. This structure allows the rotary cover to rotate circumferentially and be positioned axially, and the design is reasonable.

[0014] In the above electric pump controller, a dust cover is fixedly connected to the middle of the top of the rotary cover, and the dust cover is used to cover the bolts. The dust cover has a dustproof function and prevents the bolts from being exposed, thereby improving the integrity of the controller.

[0015] In the above-mentioned electric pump controller, the electric pump controller further comprises a floating ball, and the floating ball is movably sleeved on the suspension rod. The floating ball drives the suspension rod to move up and down, and the design is reasonable.

[0016] Compared with the prior art, the electric pump controller provided by the utility model has the following advantages:

[0017] 1. The electric pump controller has two sets of magnetic force combinations, which can ensure the rotation of the rocker arm, turn the micro switch on or off, realize the start and stop of the electric pump, and improve the stability of the controller.

[0018] 2. The electric pump controller has manual mode and automatic mode by rotating the rotary cover, making the electric pump controller easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a cross-sectional view of the overall structure of the electric pump controller.

[0020] Figure 2 This is a partial structural exploded diagram of the electric pump controller.

[0021] Figure 3 It is a structural schematic diagram of the sliding cylinder of the electric pump controller.

[0022] Figure 4 It is a schematic diagram of the overall structure of the electric pump controller.

[0023] Figure 5 It is a cross-sectional view of the connection structure between the rotary cover and the shell of the electric pump controller.

[0024] In the figure, 1, shell; 1a, hinged column; 2, suspension rod; 3, micro switch; 31, contact; 4, rocker arm; 41, protrusion; 5, sliding rod; 6, first magnet; 7, second magnet; 8, sliding cylinder; 81, first cylinder; 82, second cylinder; 83, third cylinder; 84, first transition channel; 85, second transition channel; 9, third magnet; 10, fourth magnet; 11, rotary cover; 111, rotating groove; 112, hinged cylinder; 1121, step surface; 12, fifth magnet; 13, terminal block; 16, bolt; 17, dust cover; 18, float. DETAILED DESCRIPTION

[0025] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0026] like Figure 1 , Figure 4As shown, the electric pump controller includes a housing 1, a suspension rod 2, a micro switch 3, a rocker arm 4, a sliding rod 5, a first magnet 6, a second magnet 7, a third magnet 9, a fourth magnet 10, a rotary cover 11, a fifth magnet 12, a terminal block 13 and a float 18.

[0027] like Figure 2 As shown, the top of the suspension rod 2 is fixedly connected with a transversely arranged sliding rod 5, and the two ends of the sliding rod 5 are respectively provided with a first magnet 6 and a second magnet 7, and the housing 1 has a sliding cylinder 8, and the sliding rod 5 is slidably embedded in the sliding cylinder 8, and the floating ball 18 is movably sleeved on the suspension rod 2. Specifically, as Figure 3 As shown, the sliding cylinder 8 includes a first cylinder 81, a second cylinder 82, a third cylinder 83, a first transition channel 84 and a second transition channel 85. The second cylinder 82 is located between the first cylinder 81 and the third cylinder 83. The first cylinder 81 and the second cylinder 82 are connected through the first transition channel 84. The second cylinder 82 and the third cylinder 83 are connected through the second transition channel 85. The top of the third cylinder 83 is higher than the top of the first cylinder 81 in the vertical direction. The first magnet 6 is located in the first cylinder 81, the second magnet 7 is located in the third cylinder 83, and the second magnet 7 is higher than the first magnet 6 in the vertical direction. The top of the suspension rod 2 is movably arranged in the second cylinder 82, and the sliding rod 5 passes through the first transition channel 84 and the second transition channel 85.

[0028] The rocker arm 4 is arranged in the shell 1, the middle part of the rocker arm 4 is hinged to the shell 1, and the third magnet 9 and the fourth magnet 10 are respectively provided at both ends of the rocker arm 4. The first magnet 6 is located directly below the third magnet 9, and the first magnet 6 and the third magnet 9 are arranged with like poles repelling each other, and the second magnet 7 is located directly below the fourth magnet 10, and the second magnet 7 and the fourth magnet 10 are arranged with opposite poles attracting each other.

[0029] The micro switch 3 is arranged in the housing 1 , and includes a protruding contact 31 . The rocker arm 4 has a protruding portion 41 protruding downward. The protruding portion 41 is closer to the fourth magnet 10 than the third magnet 9 , and the contact 31 contacts the protruding portion 41 .

[0030] like Figure 5 As shown, a rotary cover 11 is rotatably sleeved on the housing 1. Specifically, the center of the top of the housing 1 has a hinge column 1a protruding upward, and the middle of the rotary cover 11 has a hinge cylinder 112. The hinge cylinder 112 is sleeved outside the hinge column 1a, so that the rotary cover 11 can rotate around the housing 1 in the circumferential direction. A bolt 16 is fixedly connected in the hinge column 1a. The inner side wall of the hinge cylinder 112 has a ring-shaped step surface 1121. The circumferential edge of the head of the bolt 16 can abut against the step surface 1121, so that the rotary cover 11 and the housing 1 are axially positioned. A dust cover 17 is fixedly connected to the middle of the top of the rotary cover 11, and the dust cover 17 is used to cover the bolt 16.

[0031] The bottom edge of the rotary cover 11 is provided with a concave rotation groove 111, and the housing 1 is fixedly connected with a wire holder 13, which is located in the rotation groove 111, and the rotating cover 11 can make the wire holder 13 abut against the groove walls on both sides of the rotation groove 111. The rotary cover 11 is fixedly connected with a fifth magnet 12, and the rotary cover 11 can be rotated so that the fifth magnet 12 is located directly above the fourth magnet 10, and the fifth magnet 12 and the fourth magnet 10 are arranged to repel each other with the same polarity.

[0032] During use, when working manually, turn the rotary cover 11 to make MANUAL located directly above the terminal block 13. At this time, the fifth magnet 12 is located directly above the fourth magnet 10. The fifth magnet 12 and the fourth magnet 10 repel each other with the same polarity to realize the rotation of the rocker arm 4, so that the protrusion 41 drives the contact 31 to move, so that the microswitch 3 is turned on, and the electric pump is turned on. When it is needed to end, turn the rotary cover 11 to make AUTO located directly above the terminal block 13. At this time, the contact 31 is reset, the microswitch 3 is turned off, the electric pump is turned off, and the controller is in the electric state. When the water level is higher than the set warning water level line, the float 18 moves up to drive the suspension rod 2 to move up, and the upward movement of the suspension rod 2 drives the first magnet 6 and the second magnet 7 to move up. The first magnet 6 and the third magnet 9 repel each other with like charges, and the second magnet 7 and the fourth magnet 10 attract each other with opposite charges, so as to realize the rotation of the rocker arm 4, so that the protrusion 41 drives the contact 31 to move, so that the micro switch 3 is turned on, and the electric pump is turned on. When the water level is lower than the set warning water level line, the suspension rod 2 moves down to drive the first magnet 6 and the second magnet 7 to move down, so that the repulsive force between the first magnet 6 and the third magnet 9 is weakened, and the attraction between the second magnet 7 and the fourth magnet 10 is weakened. At this time, the contact 31 is reset, the micro switch 3 is closed, and the electric pump is turned off.

[0033] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0034] Although the terms such as housing 1, hinge column 1a, suspension rod 2, micro switch 3, contact 31, rocker arm 4, protrusion 41, sliding rod 5, first magnet 6, second magnet 7, sliding cylinder 8, first cylinder 81, second cylinder 82, third cylinder 83, first transition channel 84, second transition channel 85, third magnet 9, fourth magnet 10, rotary cover 11, rotating groove 111, hinge cylinder 112, step surface 1121, fifth magnet 12, terminal block 13, bolt 16, dust cover 17, float 18 are used more frequently in this article, the possibility of using other terms is not excluded. The use of these terms is only for more convenient description and explanation of the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. An electric pump controller, comprising a housing (1), a suspension rod (2), a micro switch (3) and a rocker arm (4), wherein the micro switch (3) and the rocker arm (4) are both arranged in the housing (1), characterized in that: The top of the suspension rod (2) is fixedly connected with a transversely arranged sliding rod (5), and the two ends of the sliding rod (5) are respectively provided with a first magnet (6) and a second magnet (7). The housing (1) has a sliding cylinder (8), and the sliding rod (5) can be slid up and down and is embedded in the sliding cylinder (8). The middle part of the rocker arm (4) is hinged with the housing (1), and the two ends of the rocker arm (4) are respectively provided with a third magnet (9) and a fourth magnet (10). The first magnet (6) is located directly below the third magnet (9), and the first magnet (6) and the third magnet (9) are arranged with like poles repelling each other. The second magnet (7) is located directly below the fourth magnet (10), and the second magnet (7) and the fourth magnet (10) are arranged with opposite poles attracting each other. The rocker arm (4) has one end of the second magnet (7) that can turn downward to open the micro switch (3).

2. An electric pump controller according to claim 1, characterized in that: The sliding cylinder (8) includes a first cylinder (81), a second cylinder (82), a third cylinder (83), a first transition channel (84) and a second transition channel (85); the second cylinder (82) is located between the first cylinder (81) and the third cylinder (83); the first cylinder (81) and the second cylinder (82) are connected via the first transition channel (84); the second cylinder (82) and the third cylinder (83) are connected via the second transition channel (85); the first magnet (6) is located in the first cylinder (81); the second magnet (7) is located in the third cylinder (83); the top end of the suspension rod (2) is movably arranged in the second cylinder (82); and the sliding rod (5) passes through the first transition channel (84) and the second transition channel (85).

3. An electric pump controller according to claim 2, characterized in that: The top of the third cylinder (83) is higher than the top of the first cylinder (81) in the vertical direction, and the second magnet (7) is higher than the first magnet (6) in the vertical direction.

4. An electric pump controller according to claim 1, 2 or 3, characterized in that: The micro switch (3) comprises a protruding contact (31), the rocker arm (4) has a protruding portion (41) protruding downward, the protruding portion (41) is closer to the fourth magnet (10) than the third magnet (9), and the contact (31) is in contact with the protruding portion (41).

5. An electric pump controller according to claim 1, 2 or 3, characterized in that: The housing (1) is rotatably sleeved with a rotary cover (11), in which a fifth magnet (12) is fixedly connected. The rotary cover (11) is rotated so that the fifth magnet (12) is located directly above the fourth magnet (10), and the fifth magnet (12) and the fourth magnet (10) are arranged to repel each other with the same polarity.

6. An electric pump controller according to claim 5, characterized in that: The bottom edge of the rotary cover (11) is provided with a recessed rotation groove (111); a wiring seat (13) is fixedly connected to the housing (1); the wiring seat (13) is located in the rotation groove (111); and the rotation of the rotary cover (11) enables the wiring seat (13) to abut against two side groove walls of the rotation groove (111).

7. An electric pump controller according to claim 5, characterized in that: The center of the top of the shell (1) is provided with a hinge column (1a) protruding upward, and the middle of the rotary cover (11) is provided with a hinge cylinder (112). The hinge cylinder (112) is sleeved outside the hinge column (1a) so that the rotary cover (11) can rotate circumferentially around the shell (1). A bolt (16) is fixed in the hinge column (1a). The inner side wall of the hinge cylinder (112) is provided with an annular step surface (1121). The circumferential edge of the head of the bolt (16) can abut against the step surface (1121) so that the rotary cover (11) and the shell (1) are axially positioned.

8. An electric pump controller according to claim 7, characterized in that: A dust cover (17) is fixedly connected to the middle of the top of the rotary cover (11), and the dust cover (17) is used to cover the bolt (16).

9. An electric pump controller according to claim 1, 2 or 3, characterized in that: The electric pump controller also includes a floating ball (18), and the floating ball (18) is movably mounted on the suspension rod (2).

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