CN214366774U

CN214366774U - Water pump leakage reminding mechanism

Info

Publication number: CN214366774U
Application number: CN202120088847.5U
Authority: CN
Inventors: 谢照林
Original assignee: Zhejiang Lulin Pump Co ltd
Current assignee: Zhejiang Lulin Pump Co ltd
Priority date: 2021-01-13
Filing date: 2021-01-13
Publication date: 2021-10-08
Anticipated expiration: 2031-01-13

Abstract

The utility model provides a mechanism is reminded in water pump leakage belongs to mechanical technical field. It has solved the current inconvenient problem of instruction subassembly. The utility model discloses in, the water pump includes the pump case that possesses the pump chamber and locates the controller outside the pump case, leak and remind the mechanism to include integrated into one piece on the pump case outer wall and be the detection part of tube-shape, the detection part is vertical setting and communicates the pump chamber, the detection part internal seal links firmly the staving, the vertical through-hole that has run through on the staving diapire, the vertical counter weight frame that is T-shaped that is equipped with in the staving and the level have set firmly annular pressure sensor, the counter weight frame comprises pole portion and the head that is platelike, pole portion slide to set up in the through-hole, pole portion passes through to form sealedly between sealing washer and the through-hole pore wall, pressure sensor overlaps outside the pole portion, the head supports under the action of self gravity of counter weight frame and presses on the pressure sensor roof; an alarm is arranged outside the pump shell, and the alarm and the pressure sensor are electrically connected with the controller. This water pump leaks and reminds mechanism convenient operation.

Description

Water pump leakage reminding mechanism

Technical Field

The utility model belongs to the technical field of machinery, a water pump, especially a water pump leak and remind mechanism is related to.

Background

Water pumps are machines that deliver or pressurize a liquid. It transfers the mechanical energy of prime mover or other external energy to liquid to increase the energy of liquid, and is mainly used to transfer liquid including water, oil, acid-base liquid, emulsion, suspoemulsion and liquid metal. The water pump is divided into self-suction type, submerged type, shielding type and the like according to special structures.

The self-sucking pump is a centrifugal pump which can automatically suck up liquid without filling the suction pipeline with liquid. The self-priming pump exhausts air in a pipeline through the rotation of the impeller, so that liquid enters the pump to complete the self-priming process. Therefore, the sealing effect is an important factor influencing the performance of the self-priming pump. The sealing effect is good, the performance of the self-priming pump is excellent, if the sealing effect is not good, the phenomena of air leakage and liquid leakage are easy to generate, the performance of the self-priming pump is greatly influenced, and even the function of the self-priming pump is possibly disabled. Some parts of the self-priming pump are connected in a sealing mode through sealing rings and fastening bolts, and in actual use, air leakage and liquid leakage can be avoided due to aging and corrosion of the sealing rings. The more sealing surfaces, the more obvious the phenomena of air leakage and liquid leakage, and the worse the performance of the self-priming pump.

Aiming at the problems, the invention provides a device for detecting leakage, such as a suction stroke indicating component (application number: 201711118195.X) of a water pump disclosed by Chinese patent library, wherein the water pump comprises a pump body with a pump cavity, the pump body is provided with a water inlet end communicated with the pump cavity, one side of the pump body close to the water inlet end is provided with a mounting cylinder, the cavity of the mounting cylinder is communicated with the pump cavity, the device is characterized in that the suction stroke indicating component of the water pump comprises a cylindrical end cover which is in threaded connection with the outer end of the mounting cylinder, the inner side of the end cover is fixedly connected with a suction stroke indicating frame, the middle part of the suction stroke indicating frame is provided with a through circulation hole, a leakage indicator is arranged between the suction stroke indicating frame and the end cover, the leakage indicator comprises an elastic sheet-shaped plugging part and an indicating convex body arranged on the upper side face of the plugging part, the plugging part plugs the circulation hole, a through communication hole is formed in the middle of the mounting cylinder, and the indicating convex body can stretch out of the communication hole.

The indicating assembly can judge whether air leakage exists or not by observing the position of the indicating convex body, but the mode needs an operator to look at the indicating convex body from time to time, and is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems in the prior art, and provides a water pump leakage reminding mechanism convenient to use.

The purpose of the utility model can be realized by the following technical proposal: the leakage reminding mechanism is characterized in that a T-shaped counterweight frame is vertically arranged in the barrel body, and a ring-shaped pressure sensor is horizontally and fixedly arranged in the barrel body, the counterweight frame consists of a rod part and a plate-shaped head part, the rod part is slidably arranged in the through hole, the rod part forms a seal with the hole wall of the through hole through a seal ring, the pressure sensor is sleeved outside the rod part, and the head part is abutted against the top wall of the pressure sensor under the action of the gravity of the counterweight frame; the pump case is also provided with an alarm, the alarm and the pressure sensor are both electrically connected with the controller, and the controller controls the alarm to be turned on and off by receiving and processing an electric signal transmitted by the pressure sensor.

When the water pump operates, negative pressure is generated in the pump cavity to enable the weight frame to have a downward moving trend, the pressure of the weight frame acting on the pressure sensor is increased, the pressure sensor converts the pressure into an electric signal and transmits the electric signal to the controller for processing, and when the controller judges that the pressure is smaller than a set value, the alarm is started to give an alarm to prompt that a leakage point exists.

The pressure of the counterweight frame acting on the pressure sensor is automatically changed through the negative pressure generated when the water pump operates, the controller is matched with the alarm to actively remind a user of leakage, the alarm reminds the user through sound, the reminding mode is more direct and obvious, the user can clearly know whether leakage exists without looking at the water pump, and the water pump leakage warning device is convenient to use.

In foretell water pump leakage reminds mechanism, foretell staving upwards extends integrated into one piece from the through-hole position and has a ring portion, and pressure sensor cup joints outside ring portion and supports to press at the staving diapire inboard. The design ring part realizes pressure sensor prepositioning, makes pressure sensor once only install the equipment of being convenient for in place accurately.

In foretell water pump leakage reminds mechanism, pressure sensor links firmly with the staving through the bonding mode.

In foretell water pump leakage warning mechanism, the staving upper end stretches out the detection part, and the outer screwed connection of staving upper end has the bung, and pressure sensor passes through the electric wire and is connected with the controller electricity, and runs through the hole of stepping down that is equipped with the power supply line and passes on the staving upper end lateral wall. The barrel cover and the barrel body are detachably connected through threads to form a relatively closed space for placing the pressure sensor and the counterweight frame, so that the interference of the external environment on the reminding mechanism is effectively reduced, and the working stability is good.

In foretell water pump leakage warning mechanism, staving upper end lateral wall outwards extends integrated into one piece from the hole position of stepping down and has the pipe portion that is L shape, and the hole of stepping down is communicate to pipe portion upper end, and the lower extreme port of pipe portion sets up down, and foretell electric wire is worn to establish in the pipe portion. Design pipe portion lower extreme port sets up down, can effectively block impurity such as dust and enter into the staving to further avoid reminding the mechanism to receive the interference, job stabilization nature is better.

In the water pump leakage reminding mechanism, the outer wall of the upper end of the pipe part is pressed on the top wall of the detection part, and the outer wall of the lower end of the pipe part is pressed on the outer side wall of the detection part. The pipe part is used for limiting the installation position of the barrel body, so that the barrel body can be installed in place at one time and is convenient to assemble.

In the water pump leakage reminding mechanism, the detection part is cylindrical, the barrel body is in threaded connection with the detection part, and the barrel body and the detection part form sealing through an o-shaped ring.

In the water pump leakage reminding mechanism, the side wall of the rod part is provided with the annular groove, the annular groove is coaxial with the rod part, the sealing ring is positioned in the annular groove, and the outer side wall of the sealing ring is abutted to the wall of the through hole.

In foretell water pump leakage reminds mechanism, the ring channel has two and distributes along pole portion axial, all is equipped with foretell sealing washer in two ring channels, and the lateral wall of two sealing washers offsets with through-hole pore wall and ring portion inner wall respectively to strengthen the sealed effect that forms between pole portion and the staving.

Compared with the prior art, this water pump leaks and reminds mechanism has following advantage:

1. the pressure of the counterweight frame acting on the pressure sensor is automatically changed through the negative pressure generated when the water pump operates, the controller is matched with the alarm to actively remind a user of leakage, the alarm reminds the user through sound, the reminding mode is more direct and obvious, the user can clearly know whether leakage exists without looking at the water pump, and the water pump leakage warning device is convenient to use.

2. Form L shape pipe portion on the outer wall of staving upper end, pipe portion upper end is pressed on the detection portion roof, and pipe portion lower extreme port sets up down, both can effectively block impurity such as dust and enter into the staving like this to avoid reminding the mechanism to receive the interference, job stabilization nature is good, is used for restricting staving mounted position again, makes the staving once only install in place, and the equipment of being convenient for, promptly in this application, pipe portion possesses a dual-purpose effect of thing, can effectively simplify the structure.

Drawings

Fig. 1 is a schematic structural diagram of a water pump leakage reminding mechanism.

Fig. 2 is an enlarged schematic view of a structure at a in fig. 1.

In the drawings, 1, a pump casing; 1a, a pump cavity; 1b, a detection unit; 2. a controller; 3. a barrel body; 3a, a through hole; 3b, a ring portion; 3c, a tube portion; 4. an o-shaped ring; 5. a counterweight frame; 5a, a rod part; 5b, a head; 6. a pressure sensor; 7. a seal ring; 8. an alarm; 9. and a barrel cover.

Detailed Description

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

As shown in fig. 1, in the water pump leakage reminding mechanism, the water pump includes a pump case 1 having a pump cavity 1a and a controller 2 provided outside the pump case 1; the leakage reminding mechanism comprises a detection part 1b which is integrally formed on the outer wall of the pump shell 1 and is cylindrical, the detection part 1b is vertically arranged, and the inner cavity of the detection part 1b is communicated with the pump cavity 1 a. The detection part 1b internal seal has linked firmly staving 3, and 3 upper ends of staving and lower extreme open respectively and seal, and vertically run through on the 3 diapire of staving have through-hole 3a, and at this moment, 3 inner chambers of staving communicate pump chamber 1a through-hole 3a, and preferred through-

hole

3a and 3 coaxial settings of staving. In the present embodiment, the tub 3 is installed as follows: the detecting part 1b is cylindrical, the barrel 3 is screwed in the detecting part 1b, and the barrel 3 and the detecting part 1b form a seal through an o-shaped ring 4.

Specifically, a T-shaped counterweight frame 5 is vertically arranged in the barrel body 3, and an annular pressure sensor 6 is horizontally and fixedly arranged in the barrel body. The counterweight frame 5 is of an integrated structure, the counterweight frame 5 is composed of a rod part 5a and a plate-shaped head part 5b, the rod part 5a is arranged in the through hole 3a in a sliding mode, and the rod part 5a is sealed with the wall of the through hole 3a through a sealing ring 7; the pressure sensor 6 is sleeved outside the rod part 5a, and the head part 5b is pressed against the top wall of the pressure sensor 6 under the action of the gravity of the counterweight frame 5.

Wherein the content of the first and second substances,

the seal ring 7 is mounted as follows: as shown in fig. 2, the side wall of the rod portion 5a is provided with an annular groove, the annular groove is coaxial with the rod portion 5a, the sealing ring 7 is located in the annular groove, and the outer side wall of the sealing ring 7 abuts against the wall of the through hole 3 a. Further, two annular grooves are axially distributed along the rod part 5a, sealing rings 7 are arranged in the two annular grooves, and the outer side walls of the two sealing rings 7 are respectively abutted against the wall of the through hole 3a and the inner wall of the ring part 3b so as to enhance the sealing effect formed between the rod part 5a and the barrel body 3.

The pressure sensor 6 is mounted as follows: barrel 3 upwards extends integrated into one piece from through-hole 3a position and has ring portion 3b, and at this moment, ring portion 3b is located barrel 3. The pressure sensor 6 is sleeved outside the ring part 3b and is pressed against the inner side of the bottom wall of the barrel body 3. The ring portion 3b is designed to realize pre-positioning of the pressure sensor 6. In this embodiment, the pressure sensor 6 is preferably fixedly connected to the barrel 3 by bonding.

As shown in fig. 1, an alarm 8 is further arranged outside the pump shell 1, the alarm 8 and the pressure sensor 6 are both electrically connected with the controller 2, and the controller 2 controls the alarm 8 to be turned on and off by receiving and processing an electric signal transmitted by the pressure sensor 6. In this embodiment, the connection and operation modes of the controller 2, the alarm 8 and the pressure sensor 6 are all conventional, and reference may be made to a medical traction device (application number: CN201920397359.5), a water receiving tank of a water dispenser (application number: CN201310401197.5) or a bus platform ceiling pressure detector (application number: CN 201921825510.7).

Further, the upper end of the barrel body 3 extends out of the detection part 1b, and a barrel cover 9 is screwed on the upper end of the barrel body 3. Pressure sensor 6 is connected with controller 2 electricity through the electric wire, and runs through the hole of stepping down that is equipped with the power supply line and passes on the lateral wall of 3 upper ends of staving. The barrel cover 9 and the barrel body 3 are detachably connected through threads to form a relatively closed space for placing the pressure sensor 6 and the counterweight frame 5, so that the interference of the external environment on the reminding mechanism is effectively reduced, and the working stability is good. Furthermore, as shown in fig. 1, the sidewall of the upper end of the barrel 3 extends outwards from the position of the abdicating hole to form an L-shaped tube 3c integrally, the upper end of the tube 3c is communicated with the abdicating hole, the lower end port of the tube 3c is arranged downwards, and the electric wire is inserted into the tube 3 c. Design pipe portion 3c lower extreme port sets up down, can effectively block impurity such as dust and enter into the staving 3 in to further avoid reminding the mechanism to receive the interference, job stabilization nature is better. The outer wall of the upper end of the tube portion 3c is pressed against the top wall of the detecting portion 1b, and the outer wall of the lower end of the tube portion 3c is pressed against the outer side wall of the detecting portion 1 b. The pipe part 3c is used for limiting the installation position of the barrel body 3, so that the barrel body 3 can be installed in place at one time and is convenient to assemble.

When the water pump operates, negative pressure is generated in the pump cavity 1a, so that the weight frame 5 has a downward moving trend, the pressure applied to the pressure sensor 6 by the weight frame 5 is increased, the pressure sensor 6 converts the pressure into an electric signal and transmits the electric signal to the controller 2 for processing, and when the controller 2 judges that the pressure is smaller than a set value, the alarm 8 is started to give an alarm to prompt that a leakage point exists.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The leakage reminding mechanism of the water pump comprises a pump shell (1) with a pump cavity (1a) and a controller (2) arranged outside the pump shell (1), the leakage reminding mechanism comprises a cylindrical detection part (1b) which is integrally formed on the outer wall of the pump shell (1), the detection part (1b) is vertically arranged and communicated with the pump cavity (1a), a barrel body (3) is fixedly connected in the detection part (1b) in a sealing way, a through hole (3a) vertically penetrates through the bottom wall of the barrel body (3), the leakage reminding mechanism is characterized in that a T-shaped counterweight frame (5) is vertically arranged in the barrel body (3) and an annular pressure sensor (6) is horizontally and fixedly arranged in the barrel body, the counterweight frame (5) consists of a rod part (5a) and a plate-shaped head part (5b), the rod part (5a) is slidably arranged in the through hole (3a), and the rod part (5a) forms a seal with the through hole wall (3a) through a sealing ring (7), the pressure sensor (6) is sleeved outside the rod part (5a), and the head part (5b) is pressed against the top wall of the pressure sensor (6) under the action of the gravity of the counterweight frame (5); still be equipped with alarm (8) outward in pump case (1), alarm (8) and pressure sensor (6) all are connected with controller (2) electricity, and controller (2) are opened and close through receiving and handle the signal of telecommunication that pressure sensor (6) transmitted and come to control alarm (8).

2. The water pump leakage reminding mechanism according to claim 1, wherein the barrel body (3) is integrally formed with a ring portion (3b) by extending upward from the through hole (3a), and the pressure sensor (6) is sleeved outside the ring portion (3b) and abuts against the inner side of the bottom wall of the barrel body (3).

3. The water pump leakage reminding mechanism according to claim 2, wherein the pressure sensor (6) is fixedly connected with the barrel body (3) in a bonding mode.

4. The water pump leakage reminding mechanism according to claim 1, wherein the upper end of the barrel body (3) extends out of the detection part (1b), a barrel cover (9) is connected to the upper end of the barrel body (3) in a threaded manner, the pressure sensor (6) is electrically connected with the controller (2) through an electric wire, and a abdicating hole through which a power supply wire passes is arranged on the side wall of the upper end of the barrel body (3).

5. The water pump leakage reminding mechanism according to claim 4, wherein the sidewall of the upper end of the barrel (3) extends outward from the hole to form an L-shaped tube (3c), the upper end of the tube (3c) is connected to the hole, the lower end of the tube (3c) is disposed downward, and the electric wire is inserted into the tube (3 c).

6. The water pump leakage reminding mechanism according to claim 5, wherein the outer wall of the upper end of the pipe part (3c) is pressed on the top wall of the detection part (1b), and the outer wall of the lower end of the pipe part (3c) is pressed on the outer side wall of the detection part (1 b).

7. The water pump leakage reminding mechanism according to claim 1, wherein the detecting part (1b) is cylindrical, the barrel body (3) is screwed in the detecting part (1b), and the barrel body (3) and the detecting part (1b) form a seal through an o-shaped ring (4).

8. The water pump leakage reminding mechanism according to claim 2, wherein the side wall of the rod part (5a) is provided with an annular groove, the annular groove is coaxial with the rod part (5a), the sealing ring (7) is positioned in the annular groove, and the outer side wall of the sealing ring (7) is abutted against the wall of the through hole (3 a).

9. The water pump leakage reminding mechanism according to claim 8, wherein two annular grooves are formed in the annular groove and are distributed along the axial direction of the rod portion (5a), the sealing rings (7) are arranged in the two annular grooves, and the outer side walls of the two sealing rings (7) are respectively abutted against the wall of the through hole (3a) and the inner wall of the ring portion (3 b).