CN116292315A

CN116292315A - Self priming pump that possesses self sealss subassembly

Info

Publication number: CN116292315A
Application number: CN202310553571.7A
Authority: CN
Inventors: 肖爱华; 徐金兰; 叶俊
Original assignee: Jiangsu Vinci Industrial Equipment Manufacture Co ltd
Current assignee: Jiangsu Vinci Industrial Equipment Manufacture Co ltd
Priority date: 2023-05-17
Filing date: 2023-05-17
Publication date: 2023-06-23
Anticipated expiration: 2043-05-17
Also published as: CN116292315B

Abstract

The invention relates to the technical field of self-priming pumps, in particular to a self-priming pump with a self-sealing component, which comprises a base, a pump body, a motor, a water inlet connector and a water outlet connector, wherein the pump body and the motor are arranged at the left end and the right end of the upper surface of the base; the motor protection assembly is arranged on the outer wall of the motor and used for monitoring the overtemperature of the motor. The invention has the function of removing water stains, the guide rod can not be blocked, the spring force can be changed, the valve clack control valve body has good effect, the motor temperature monitoring function is realized, and the motor is prevented from burning out due to over-temperature work.

Description

Self priming pump that possesses self sealss subassembly

Technical Field

The invention relates to the technical field of self-priming pumps, in particular to a self-priming pump with a self-sealing component.

Background

The self-priming pump belongs to self-priming centrifugal pump, and has the advantages of compact structure, convenient operation, stable operation, easy maintenance, high efficiency, long service life, stronger self-priming capability and the like. The working principle of the self-priming pump is that water is filled in the pump shell before the water pump is started (or water is stored in the pump shell). After the impeller is started, the impeller rotates at a high speed to enable water in the impeller channel to flow to the volute, at the moment, the inlet forms vacuum, so that the water inlet check valve is opened, and air in the suction pipe enters the pump and reaches the outer edge through the impeller channel.

In order to prevent water backflow, can install the check valve at self priming pump delivery port, the check valve comprises the valve body, the valve clack, spring and valve gap (as shown in fig. 1), when the self priming pump works, water pressure can upwards jack-up the valve clack, realize the water delivery, when the self priming pump stops working, under the assistance of spring elasticity, the valve clack descends and seals the valve body, prevent water backflow, along with the increase of the operating time of water delivery, can remain the water stain gradually at the valve clack outer wall and the inner wall of valve gap uide bushing, because the valve clack is vertical movement, can restrain the valve clack after the water stain is accumulated to a certain extent and remove, the difficult problem of water delivery can appear, the valve clack loses the function of switch valve body, moreover, spring multiple compression elasticity decline, unable adjustment spring elasticity according to the in service condition, the valve clack fall back speed is slow.

In addition, the invention creation of application number 2022112063557 discloses a self priming pump that possesses self-sealing subassembly, relates to the self priming pump field, including self priming pump shell, upper shell cover, lower shell cover, one side of self priming pump shell is provided with the inlet, and the opposite side is provided with the liquid outlet, the inside of self priming pump shell is provided with the working chamber, be provided with gear assembly in the working chamber, gear assembly includes driving gear assembly and driven gear assembly, can have good cushioning nature when meshing between self priming pump start-up instant teeth of a cogwheel and teeth of a cogwheel, prevent excessive striking between teeth of a cogwheel and teeth of a cogwheel from causing wearing and tearing, but once the self priming pump is too high, or lack water in the pump shell, all can cause the motor overload temperature rise that drives pump shell work, and above-mentioned invention and prior art still can not monitor to the pump shell empty load, and the motor does not have the protection and burns out easily, consequently, the self priming pump that the self-sealing effect is good is necessarily provided.

Disclosure of Invention

The invention aims to overcome the defects of poor backflow sealing effect and incapability of monitoring and protecting a motor in the prior art, and aims to solve the technical problem of a self-priming pump with a self-sealing assembly.

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a self priming pump that possesses self sealss subassembly, includes base, pump body, motor, water inlet connector and water outlet connector, pump body and motor are installed both ends about the base upper surface, and the motor output is connected with pump body impeller pivot, drives the pump body work through the motor, and water inlet connector and water outlet connector all are provided with the flange, and the pipe connection is stable, still includes self sealss subassembly and motor protection subassembly, and self sealss subassembly passes through the elbow to be connected with water outlet connector, prevents water backward flow; the motor protection assembly is arranged on the outer wall of the motor and used for monitoring the overtemperature of the motor.

The self-sealing assembly comprises a valve body, a valve cover, a clamp spring, a guide sleeve, a sliding chute, a guide rod, a valve clack, a sliding block, a spring, a compression bar and a clamping groove, wherein the valve body is arranged at the top end of a water outlet joint through an elbow, the valve cover is arranged at the top of the valve body, the clamp spring is in a V shape, double-point clamping is realized by utilizing self elasticity, the inner side of the clamp spring is triangular, the area is small to large, the clamp spring is conveniently clamped in the clamping groove, the pulling resistance of the clamp spring and the clamping groove is improved, the guide sleeve is vertically arranged at the center of the valve cover, the inner wall of the guide sleeve is provided with a spiral sliding chute, one end of the guide rod is inserted at the bottom of the inner cavity of the guide sleeve, the valve clack is arranged at the other end of the guide rod, the sliding block is inserted at the top end of the outer wall of the guide rod, the spring is inserted at the middle part of the inner cavity of the guide sleeve, the bottom end of the compression bar is provided with a sealing gasket, the outer wall of the compression bar is provided with the clamping groove from top to bottom, and the clamp spring is inserted into the inner cavity of the clamping groove under the self elastic force to longitudinally move and position the compression bar;

not only can prevent that the water stain from obstructing the guide bar and remove, but also the spring can be adjusted to the elasticity of guide bar, realizes the long-term stable use of valve clack.

Preferably, the spout is at uide bushing inner wall along heliciform distribution, and the guide bar is along the spout when sliding, makes the water stain obtain grinding between guide bar and the uide bushing, prevents that the water stain from too much causing the guide bar card to die.

Preferably, the motor protection assembly comprises the following components: the device comprises a heat conducting plate, a box body, an alarm, mercury, a piston rod, a rack, a tooth-missing gear, a resistor disc, a leaf spring and a contact, wherein the heat conducting plate is vertically arranged on the outer wall of a motor, the rear side surface of the heat conducting plate is a curved surface, and the shape of the rear side surface of the heat conducting plate is matched with the outer wall of the motor so as to enlarge the contact area of the heat conducting plate and the motor and ensure that the temperature of the heat conducting plate and the temperature of the motor are synchronous; the outer wall of the motor is provided with heat-insulating cotton to prevent heat loss of the heat-conducting plate so as to ensure that the heat-conducting plate and the motor have the same temperature; the box body is arranged at the top end of the heat conducting plate; the alarm is arranged on the outer wall of the box body, and the sounding size of the alarm changes according to the temperature rise of the motor; mercury is filled in the inner cavity of the heat conducting plate, the volume of the mercury is increased along with the temperature rise, so that the mercury drives the piston to move, and the mercury is converted into mechanical movement of the piston through temperature change of the motor; the piston can be inserted into the inner cavity of the heat conducting plate in a vertically sliding way; one end of the piston rod is arranged at the top end of the piston; the rack is vertically arranged at the other end of the piston rod, so that the gear with the missing teeth can rotate clockwise or anticlockwise; the tooth-missing gear is rotatably arranged in the middle of the inner cavity of the box body around the axis of the gear-missing gear through a pin shaft and is meshed with the rack; the resistor disc is arranged on the outer wall of the tooth-missing gear and is electrically connected with the alarm; one end of the leaf spring is arranged on the inner wall of the right side of the box body; the contact is mounted on the other end of the leaf spring and is connected with a power supply through a wire.

Preferably, the maximum length of upward movement of the rack is less than the inner wall of the heat conducting plate, so that the piston is prevented from moving out of the inner cavity of the heat conducting plate, and leakage of mercury is avoided.

Preferably, the two ends of the resistor disc are inclined planes which are in sliding contact with the contact and are made of nichrome with uniform resistance values, the resistances of different positions of the resistor disc are the same, and the sound of the alarm can be changed by changing the resistance when the alarm is electrified so as to distinguish the severity of the overtemperature operation of the motor.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the invention, the valve clack can move upwards under the drive of water pressure, the guide rod moves upwards in a spiral manner under the cooperation of the sliding groove and the sliding block, the guide rod and the guide sleeve grind water stains mutually, the smooth movement of the guide rod is ensured, the clamping springs are clamped in clamping grooves at different positions, the height of the compression rod can be adjusted, and the elasticity of the springs to the guide rod is adjusted, so that the valve clack has the function of removing the water stains, the movement of the guide rod can not be blocked, the elasticity of the springs can be changed, and the valve clack control valve body is good.

2. According to the invention, mercury is heated to expand, so that the piston can push the rack to move upwards, the tooth-missing gear rotates clockwise, when the contact slides on the resistor disc, the resistance change of the resistor disc is utilized to change the sounding size of the alarm, alarm is realized, and the motor temperature monitoring function is realized, so that the motor is prevented from burning out due to overtemperature work.

Drawings

Fig. 1 is a front sectional view of the check valve body.

FIG. 2 is a schematic diagram of the structure of the present invention.

Fig. 3 is a schematic view of a self-sealing assembly according to the present invention.

Fig. 4 is a front cross-sectional view of a self-sealing assembly of the present invention.

Fig. 5 is a front cross-sectional view of the guide sleeve of the present invention.

Fig. 6 is a schematic structural diagram of a motor protection assembly according to the present invention.

Fig. 7 is a left side cross-sectional view of the motor protection assembly of the present invention.

In the figure: 1. a base; 2. a pump body; 3. a motor; 4. a water inlet joint; 5. a water outlet joint; 6. a self-sealing assembly; 7. a motor protection assembly; 61. a valve body; 62. a valve cover; 63. clamping springs; 64. a guide sleeve; 65. a chute; 66. a guide rod; 67. a valve flap; 68. a slide block; 69. a spring; 610. a compression bar; 611. a clamping groove; 71. a heat conductive plate; 72. a case body; 73. an alarm; 74. mercury; 75. a piston; 76. a piston rod; 77. a rack; 78. a tooth-missing gear; 79. a resistor sheet; 710. a leaf spring; 711. a contact.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The invention provides a technical scheme that: the utility model provides a self priming pump that possesses self sealss subassembly, as shown in fig. 1-7, including base 1, the pump body 2, motor 3, water inlet connector 4 and play water joint 5, both ends about the upper surface of base 1 are installed respectively to pump body 2 and motor 3, and motor 3 output and pump body 2 impeller pivot are connected, drive pump body 2 work through motor 3, water inlet connector 4 and play water joint 5 are installed respectively in the left side and the top of pump body 2, water inlet connector 4 and play water joint 5 all are provided with the flange, the pipe connection is stable, self priming pump that possesses self sealss subassembly still includes self sealss subassembly 6 and motor protection component 7, self sealss subassembly 6 is connected with play water joint 5 through the elbow, prevent water reflux through self sealss subassembly 6, motor protection component 7 is installed at motor 3's outer wall, overtemperature monitoring to motor 3 through motor protection component 7.

The self-sealing assembly 6 comprises a valve body 61, a valve cover 62, a clamp spring 63, a guide sleeve 64, a chute 65, a guide rod 66, a valve clack 67, a sliding block 68, a spring 69, a compression bar 610 and a clamping groove 611, wherein the valve body 61 is arranged at the top end of the water outlet joint 5 through an elbow; a valve cover 62 is installed on the top of the valve body 61; the clamp spring 63 is arranged on the front side of the top of the valve cover 62, the clamp spring 63 is V-shaped, and double-point clamping is realized by utilizing self elasticity; the guide sleeve 64 is vertically arranged at the center of the top of the valve cover 62, the guide rod 66 is controlled to move up and down, and a chute 65 is formed in the inner wall of the guide sleeve 64; one end of the guide rod 66 can be inserted into the bottom of the inner cavity of the guide sleeve 64 in a vertically sliding way; the valve clack 67 is arranged at the other end of the guide rod 66, the contact surface of the valve clack 67 and the valve body 61 is an inclined plane, the valve body 61 is sealed under the gravity action of the valve clack 67 and the guide sleeve 64, and the tightness of the valve clack 67 and the valve body 61 is improved under the action of water pressure; the sliding block 68 is arranged at the top end of the outer wall of the guide rod 66, and the sliding block 68 is inserted into the inner cavity of the sliding groove 65; the spring 69 is inserted in the middle of the inner cavity of the guide sleeve 64, and the guide rod 66 is assisted to fall down by the elasticity of the spring 69; the depression bar 610 is pegged graft at the inner chamber top of guide bar 66, and the depression bar 610 bottom is provided with sealed pad, prevents that the ponding from guide bar 66 and depression bar 610 gap outflow, and draw-in groove 611 has all been seted up from top to bottom to the outer wall of depression bar 610, and jump ring 63 inserts the draw-in groove 611 inner chamber under self elasticity effect, to the longitudinal movement location of depression bar 610.

As a preferred scheme, the inner side of the snap spring 63 is triangular, and the inner side area of the snap spring 63 is from small to large, so that the snap spring 63 is conveniently clamped in the clamping groove 611.

Preferably, the sliding grooves 65 are spirally distributed on the inner wall of the guiding sleeve 64, and when the sliding block 68 slides along the sliding grooves 65, the guiding rod 66 can spirally rise and fall along the inner wall of the guiding sleeve 64, so that water stains between the guiding rod 66 and the guiding sleeve 64 are ground, and the blocking of the guiding rod 66 caused by excessive accumulation of the water stains is prevented.

As a preferred scheme, the motor protection assembly 7 further comprises a heat conducting plate 71, a box body 72, an alarm 73, mercury 74, a piston 75, a piston rod 76, a rack 77, a tooth-missing gear 78, a resistor sheet 79, a leaf spring 710 and a contact 711, wherein the heat conducting plate 71 is vertically arranged on the outer wall of the motor 3 and has good heat conductivity, the temperature of the motor 3 during working is sensed, heat insulation cotton is arranged on the outer wall of the heat conducting plate 71 to prevent heat loss of the heat conducting plate 71, and the same temperature of the heat conducting plate 71 and the motor 3 is ensured; the case 72 is installed at the top end of the heat conductive plate 71; the alarm 73 is arranged on the outer wall of the box body 72, and the sounding size of the alarm 73 is changed according to the temperature rise of the motor 3; mercury 74 fills the inner cavity of the heat conducting plate 71, the volume of the mercury 74 becomes larger along with the temperature rise, so that the piston 75 is driven to move, and the temperature change of the motor 3 is converted into mechanical movement of the piston 75; the piston 75 can be inserted into the inner cavity of the heat conducting plate 71 in a vertically sliding way; one end of a piston rod 76 is mounted on the top end of the piston 75; the rack 77 is vertically installed at the other end of the piston rod 76, and when the rack 77 moves up and down, the gear 78 with a missing tooth rotates clockwise or counterclockwise; the tooth-missing gear 78 is rotatably arranged in the middle of the inner cavity of the box body 72 around the axis of the tooth-missing gear through a pin shaft and is meshed with the rack 77; the resistor 79 is arranged on the outer wall of the tooth-missing gear 78, and the resistor 79 is electrically connected with the alarm 73; one end of the leaf spring 710 is installed at the right inner wall of the case 72; the contact 711 is mounted at the other end of the leaf spring 710 and is connected to a power source by a wire.

Preferably, the back surface of the heat conducting plate 71 is a curved surface, the shape of the heat conducting plate 71 is matched with the shape of the outer wall of the motor 3, the contact area between the heat conducting plate 71 and the motor 3 is enlarged, and the heat conducting plate 71 can be synchronized with the temperature of the motor 3.

Preferably, the maximum length of upward movement of the rack 77 is smaller than the inner wall of the heat conducting plate 71, so as to prevent the piston 75 from moving out of the inner cavity of the heat conducting plate 71 and prevent the mercury 74 from leaking.

As a preferred scheme, further, both ends of the resistor 79 are inclined planes, the resistor 79 is in sliding contact with the contact 711 and made of nichrome with uniform resistance, the resistances of different positions of the resistor 79 are the same, and when the alarm 73 is electrified, the resistance changes, so that the sound of the alarm 73 is changed, and the severity of the overtemperature work of the motor 3 is distinguished.

Working principle:

step one, driving the pump body 2 to work through the motor 3, sucking water from the water inlet joint 4 by the suction force of the pump body 2, discharging the water from the water outlet joint 5, and pushing the valve clack 67 upwards by water pressure to open the valve body 61 so as to realize water delivery;

when the guide rod 66 moves upwards, the sliding groove 65 is spiral, when the sliding block 68 is driven to slide along the sliding groove 65, the guide rod 66 rotates to move towards the guide sleeve 64, the guide rod 66 rubs with the guide sleeve 64 to play a role in grinding water stains, when water delivery is stopped, under the action of the elastic force of the spring 69 and the gravity of the guide rod 66 and the valve clack 67, the guide rod 66 and the valve clack 67 spirally descend, water stains can be ground again, removal of the water stains is realized, and the guide rod 66 is prevented from being blocked;

when the elasticity of the spring 69 is reduced, the clamp springs 63 are stirred to two sides, the clamp springs 63 are moved out of the clamping grooves 611, the pressing rod 610 can be pressed downwards, the pressing rod 610 is pushed to press the spring 69, so that the elasticity of the spring 69 to the guide rod 66 is increased, the clamp springs 63 are loosened, the clamp springs 63 are reset and clamped in the clamping grooves 611 at corresponding positions, positioning of the pressing rod 610 is achieved, and elastic force adjustment of the spring 69 is achieved;

and thirdly, once the pump body is in a water shortage state within 2 years or the suction-side large motor 3 is in a no-load state, along with the temperature rise of the motor 3, mercury is heated and expanded under the condition of heat conduction of the heat conduction plate 71, the piston 75 is pushed to move upwards, the rack 77 is pushed to move upwards to stir the gear 78 with the missing teeth, when the resistor sheet 79 is contacted with the contact 711, the alarm 73 is electrified to sound so as to alarm, along with the sliding of the contact 711 on the resistor sheet 79, the effective resistance is reduced, the power of the alarm 73 is increased, and the emitted sound is increased more and more, so that the risk of the temperature rise and burning out of the motor 3 is judged.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a self priming pump that possesses self sealss subassembly, includes base (1), pump body (2), motor (3), water inlet connector (4) and play water joint (5), both ends about the upper surface of base (1) are installed respectively to pump body (2) and motor (3), and motor (3) output is connected with pump body (2) impeller pivot, drives pump body (2) work through motor (3), water inlet connector (4) and play water joint (5) are installed respectively in the left side and the top of pump body (2), a serial communication port, self priming pump that possesses self sealss subassembly still includes self sealss subassembly (6) and motor protection subassembly (7), self sealss subassembly (6) are connected with play water joint (5) through the elbow, motor protection subassembly (7) are installed at the outer wall of motor (3);

the self-sealing assembly (6) comprises:

the valve body (61) is arranged at the top end of the water outlet joint (5) through an elbow;

a valve cover (62) mounted on the top of the valve body (61);

the clamp spring (63) is arranged at the front side of the top of the valve cover (62), and the clamp spring (63) is V-shaped;

the guide sleeve (64) is vertically arranged at the center of the top of the valve cover (62), and a sliding groove (65) is formed in the inner wall of the guide sleeve (64);

one end of the guide rod (66) can be inserted into the bottom of the inner cavity of the guide sleeve (64) in a vertically sliding way;

the valve clack (67) is arranged at the other end of the guide rod (66), the contact surface of the valve clack (67) and the valve body (61) is an inclined plane, and the valve body (61) runner is sealed under the gravity action of the valve clack and the guide sleeve (64);

the sliding block (68) is arranged at the top end of the outer wall of the guide rod (66), and the sliding block (68) is inserted into the inner cavity of the sliding groove (65);

the spring (69) is inserted in the middle of the inner cavity of the guide sleeve (64), and the guide rod (66) is assisted to fall down by the elasticity of the spring (69);

the compression bar (610) is inserted at the top of the inner cavity of the guide bar (66), a sealing gasket is arranged at the bottom end of the compression bar (610), accumulated water is prevented from flowing out of a gap between the guide bar (66) and the compression bar (610), clamping grooves (611) are formed in the outer wall of the compression bar (610) from top to bottom, and the clamp springs (63) are inserted into the inner cavity of the clamping grooves (611) under the action of self elasticity to longitudinally move and position the compression bar (610).

2. Self-priming pump with self-sealing assembly according to claim 1, characterized in that the inside of the snap spring (63) is triangular.

3. Self-priming pump with self-sealing assembly according to claim 1, characterized in that the sliding groove (65) is distributed in a spiral shape on the inner wall of the guiding sleeve (64).

4. Self priming pump with self sealing assembly according to claim 1, characterized in that the motor protection assembly (7) comprises:

the heat conducting plate (71) is vertically arranged on the outer wall of the motor (3), and heat-insulating cotton is arranged on the outer wall of the heat conducting plate (71);

a case (72) mounted on the top end of the heat conduction plate (71);

the alarm (73) is arranged on the outer wall of the box body (72), and the sounding size of the alarm (73) is changed according to the temperature rise of the motor (3);

mercury (74) filled in the inner cavity of the heat conducting plate (71);

the piston (75) can be inserted into the inner cavity of the heat conducting plate (71) in a vertically sliding way;

a piston rod (76) having one end mounted on the top end of the piston (75);

a rack (77) vertically installed at the other end of the piston rod (76);

the tooth-missing gear (78) is rotatably arranged in the middle of the inner cavity of the box body (72) around the axis of the gear-missing gear through a pin shaft and is meshed with the rack (77);

the resistor piece (79) is arranged on the outer wall of the tooth-missing gear (78), and the resistor piece (79) is electrically connected with the alarm (73);

a leaf spring (710) having one end mounted to a right inner wall of the case (72);

and a contact (711) mounted on the other end of the leaf spring (710) and connected to a power source through a wire.

5. A self priming pump with a self sealing assembly according to claim 4, wherein when said piston (75) moves upwards, driving rack (77) to move upwards to toggle tooth missing gear (78), causing said resistive sheet (79) to contact (711).

6. A self priming pump with a self sealing assembly according to claim 4, wherein the rear surface of said heat conducting plate (71) is curved.

7. A self priming pump with a self sealing assembly according to claim 4, wherein the maximum length of upward movement of the rack (77) is less than the inner wall of the thermally conductive plate (71).

8. The self priming pump with self sealing assembly according to claim 4, wherein said resistor sheet (79) is beveled at both ends and is made of nichrome with uniform resistance.