A vibration-reducing horizontal single-suction pump assembly

Abstract

The present application discloses a vibration-damping horizontal single-suction pump assembly, which relates to the technical field of water pumps, and includes a pump body, a first driving member, a vibration-damping top plate, a vibration-damping base, and a plurality of first springs and a second spring. The pump body and the first driving member are both arranged on the vibration-damping top plate, and the vibration-damping top plate is arranged on the vibration-damping base through a plurality of first springs or second springs. A trigger assembly is arranged on the driving end of the first driving member, and a switching assembly is arranged in the vibration-damping base, and the stiffness of the first spring is less than the stiffness of the second spring. The present application uses the trigger assembly and the switching assembly to switch the springs connected between the vibration-damping top plate and the vibration-damping base. When the single-suction pump rotates at a low speed, the first spring with a smaller stiffness connects the vibration-damping top plate and the vibration-damping base. When the single-suction pump rotates at a high speed, the second spring with a larger stiffness connects the vibration-damping top plate and the vibration-damping base, so that the single-suction pump can achieve a better vibration reduction effect at different speeds.

Description

Technical Field

[0001] The present application relates to the technical field of water pumps, and in particular to a vibration-damping horizontal single-suction pump assembly. Background Art

[0002] The horizontal single-suction pump assembly is a highly efficient fluid conveying equipment with the characteristics of compact structure and stable operation. It is widely used in industry, agriculture, urban water supply and other fields.

[0003] At present, the horizontal single-suction pump assembly includes a pump body, a pump shaft, an impeller, a drive motor and a vibration-damping base. The drive motor and the pump body are both installed on the vibration-damping base. The drive motor drives the impeller to rotate through the pump shaft. The impeller rotates and sucks the liquid from the water inlet, and then discharges the liquid from the water outlet. The vibration-damping base can reduce the vibration generated when the single-suction pump is running. The vibration-damping base mostly uses springs for vibration reduction. The vibration-damping effect of the spring depends on its own stiffness and the vibration frequency of the single-suction pump. When the speed of the single-suction pump is low, the vibration frequency of the single-suction pump is low. At this time, the spring with smaller stiffness has a better vibration-damping effect; when the speed of the single-suction pump is high, the vibration frequency of the single-suction pump is high. At this time, the spring with larger stiffness has a better vibration-damping effect.

[0004] Most single-suction pumps are used at a single speed. In this case, a spring with the corresponding stiffness can achieve a better vibration reduction effect. When a single-suction pump is used at different speeds, a spring with a single stiffness will have a poor vibration reduction effect. Summary of the invention

[0005] In order to enable a single-suction pump to achieve better vibration reduction effect at different rotation speeds, the present application provides a vibration-reducing horizontal single-suction pump assembly.

[0006] The vibration-damping horizontal single-suction pump assembly provided in this application adopts the following technical solution:

[0007] A vibration-damping horizontal single-suction pump assembly comprises a pump body, a first driving member, a vibration-damping top plate, a vibration-damping base and a plurality of first springs and a second spring, wherein the pump body and the first driving member are both arranged on the vibration-damping top plate, and the vibration-damping top plate is arranged on the vibration-damping base through a plurality of first springs or second springs, a trigger assembly is arranged on the driving end of the first driving member, and a switching assembly is arranged in the vibration-damping base; the stiffness of the first spring is less than the stiffness of the second spring, when the first driving member rotates at a low speed, the vibration-damping top plate is connected to the vibration-damping base through the first spring, and when the first driving member rotates at a high speed, the first driving member triggers the switching assembly through the trigger assembly, and the switching assembly switches the connection between the vibration-damping top plate and the vibration-damping base, and connects the vibration-damping top plate to the vibration-damping base through the second spring.

[0008] By adopting the above technical solution, when the single-suction pump rotates at a low speed, the vibration frequency of the single-suction pump is low, and the vibration-damping top plate is connected to the vibration-damping base through the first spring. At this time, the first spring with a smaller stiffness has a better vibration-damping effect. When the single-suction pump rotates at a high speed, the vibration frequency of the single-suction pump is high. The trigger component can switch the spring through the switching component, so that the vibration-damping top plate is connected to the vibration-damping base through the second spring. At this time, the second spring with a larger stiffness has a better vibration-damping effect. In this way, the trigger component and the switching component are used to switch the spring connected between the vibration-damping top plate and the vibration-damping base, so that the single-suction pump can achieve a better vibration-damping effect at different speeds.

[0009] Preferably, the trigger assembly includes a turntable, a mounting seat, a first tension spring, a first magnetic member, a trigger switch, a plurality of second tension springs and a second magnetic member, the turntable is arranged on a driving shaft of the first driving member, a plurality of slide grooves are opened in the turntable along its own circumference, a plurality of second magnetic members are slidably arranged in the plurality of slide grooves along the diameter direction of the turntable, a plurality of second tension springs are arranged in the plurality of slide grooves and are located on the side of the second magnetic member close to the middle of the turntable, and the two ends of the second tension spring are respectively fixedly connected to the end wall of the slide groove and the second magnetic member; the mounting seat is fixedly arranged on the vibration-damping top plate and is located directly below the turntable, the first magnetic member is lifted and slidably arranged in the mounting seat, the first tension spring is arranged in the mounting seat and is located above the first magnetic member, the two ends of the first tension spring are respectively fixedly connected to the mounting seat and the top wall of the first magnetic member, the trigger switch is arranged in the mounting seat, the trigger switch is electrically connected to the switching assembly and is located below the first magnetic member, and the first magnetic member repels the second magnetic member.

[0010] By adopting the above technical solution, the first driving member drives multiple second magnetic members to rotate through the turntable. When the rotation speed of the first driving member increases, the second magnetic member moves in the slide groove away from the turntable under the action of centrifugal force. During the movement, the second magnetic member gradually approaches the first magnetic member, and the second magnetic member pushes the first magnetic member to move downward. When the first magnetic member moves and hits the trigger switch, the trigger switch controls the switching component to switch the second spring to connect the vibration-damping top plate and the vibration-damping base; when the first driving member rotates and lowers, the second tension spring pulls the second magnetic member to slide into the turntable, the repulsive force of the second magnetic member on the first magnetic member is weakened, and the first tension spring pulls the first magnetic member to move upward. When the first magnetic member is separated from the trigger switch, the trigger switch controls the switching component to switch the first spring to connect the vibration-damping top plate and the vibration-damping base.

[0011] Preferably, the switching assembly includes a lifting plate, two push plates and a second driving member, the vibration damping base is provided with a accommodating cavity, the lifting plate is slidably arranged in the accommodating cavity along a vertical direction, the two push plates are slidably arranged in the bottom of the accommodating cavity along a horizontal direction and are located below the lifting plate, the two second driving members are arranged in the accommodating cavity and are located on a side where the two push plates are away from each other, the driving end of the second driving member is fixedly connected to the push plate and pushes the push plate to move, and the second driving member is electrically connected to the trigger switch; the top ends of the first spring and the second spring are fixedly connected to the bottom wall of the vibration damping top plate, the bottom end of the first spring abuts against the top wall of the vibration damping base, a plurality of limiting holes connected to the accommodating cavity are provided on the top wall of the vibration damping base, the bottom end of the second spring is located in the limiting hole, when the two push plates move in a direction approaching each other, the push plate pushes the lifting plate to move up, and the lifting plate moves to abut the bottom end of the second spring.

[0012] By adopting the above technical solution, when the trigger switch is turned on, the trigger switch controls the second driving member to drive the two push plates to move towards each other, and the push plates drive the lifting plates to move up, and the lifting plates abut against the bottom end of the second spring, so that the second spring connects the vibration-damping top plate and the vibration-damping base; when the trigger switch is closed, the trigger switch controls the second driving member to drive the two push plates to move away from each other, and the lifting plates move down and separate from the bottom end of the second spring, and at this time the first spring connects the vibration-damping top plate and the vibration-damping base.

[0013] Preferably, first wedge surfaces are formed on opposite sides of the bottom wall of the lifting plate, and second wedge surfaces are formed on the top ends of the side walls of the two push plates close to each other. When the push plates move, the second wedge surfaces move to abut against the first wedge surfaces and push the lifting plates to move upward.

[0014] By adopting the above technical solution, when the two push plates move toward each other, the second wedge surfaces on the two push plates first contact the first wedge surface of the lifting plate. As the push plates continue to move, the second wedge surfaces can push the lifting plate to move upward through the first wedge surfaces; when the two push plates move away from each other, the lifting plate moves downward under the action of gravity.

[0015] Preferably, the middle part of the bottom wall of the lifting plate is a plane wall, and the top wall of the push plate is located on the plane wall. When the push plate lifts the lifting plate, the plane wall of the push plate abuts against the plane wall of the lifting plate and keeps the lifting plate stable.

[0016] By adopting the above technical solution, when the two push plates lift the lifting plate, the plane wall of the push plate abuts against the plane wall of the lifting plate, so that the lifting plate can remain stable, thereby making the vibration reduction effect of the second spring better.

[0017] Preferably, a plurality of driving gears are rotatably arranged in the bottom wall of the accommodating cavity of the vibration damping base, a driving tooth groove is opened on the bottom wall of the push plate along its own moving direction, the driving gear meshes in the driving tooth groove, a driven gear is rotatably arranged on the top wall of the vibration damping base, the driven rack is connected to the driving gear through a synchronous belt, a driven rack meshing with the driven gear is slidably arranged on the vibration damping base, a plurality of clamping rods are arranged on the driven rack, when the two push plates move away from each other, the driven rack drives the clamping rod to clamp the bottom end of the first spring, and when the two push plates move toward each other, the driven rack drives the clamping rod to release the clamping of the first spring.

[0018] By adopting the above technical solution, when the push plate moves, the driving gear is driven to rotate through the driving tooth groove, and the driving gear drives the driven rack to move through the synchronous belt and the driven gear. When the two push plates move toward each other, the second spring connects the vibration-damping top plate and the vibration-damping base, and the driven rack drives the clamping rod to release the clamping of the first spring. When the two push plates move away from each other, the first spring is connected to the vibration-damping top plate and the vibration-damping base, and the driven rack drives the clamping rod to clamp the first spring, so that the vibration reduction effect of the first spring is better.

[0019] Preferably, a plurality of limiting sleeves are fixedly provided on the top wall of the lifting plate, the limiting sleeves slide through the limiting holes, and the bottom end of the second spring is located in the limiting sleeves.

[0020] By adopting the above technical solution, during the lifting and lowering movement of the lifting plate, the limiting sleeve slides in the limiting hole, thereby limiting the lifting and lowering movement of the lifting plate, making the lifting and lowering movement of the lifting plate more stable; when the lifting plate moves upward and the bottom end of the second spring abuts against the lifting plate, the bottom end of the second spring is located in the limiting sleeve, and the limiting sleeve limits the bottom of the second spring, thereby further improving the vibration reduction effect of the second spring.

[0021] Preferably, a limit rod is provided on the driven rack, a plurality of limit pins are provided on the limit rod, a plurality of limit grooves are provided on the top of the side wall of the limit sleeve, when the two push plates drive the lifting plate to rise to the highest point, the top end of the limit sleeve passes through the limit hole and extends to the outside of the vibration damping base, when the push plate contacts the plane wall of the lifting plate and the push plate moves, the limit rod drives the limit pin to insert into the limit groove of the limit sleeve.

[0022] By adopting the above technical solution, during the process of the push plate driving the lifting plate to rise, the driven rack drives the limit rod to move, and the limit rod drives the limit pin to move. When the lifting plate rises to the highest point, the lifting plate drives the limit sleeve to move up, and the top of the limit sleeve extends into the limit hole. During the continuous movement of the push plate, the lifting plate stops moving. At this time, the limit rod drives the limit pin to insert into the limit groove, so that the limit sleeve can be limited in the vertical direction, and then the lifting plate is limited, which improves the stability of the limit plate, thereby further improving the vibration reduction effect of the second spring.

[0023] Preferably, telescopic rods are provided at the four corners of the vibration-damping base, and the telescopic ends of the telescopic rods are fixedly connected to the bottom wall of the vibration-damping top plate.

[0024] By adopting the above technical solution, during the operation of the single-suction pump, the telescopic rod can reduce the shaking of the vibration-damping top plate in the horizontal direction, thereby further increasing the vibration-damping effect.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. The springs connected between the vibration-damping top plate and the vibration-damping base are switched by using the trigger assembly and the switching assembly. When the single-suction pump rotates at a low speed, the first spring with a smaller stiffness connects the vibration-damping top plate and the vibration-damping base. When the single-suction pump rotates at a high speed, the second spring with a larger stiffness connects the vibration-damping top plate and the vibration-damping base, so that the single-suction pump can achieve better vibration-damping effect at different speeds;

[0027] 2. With the help of the clamping plate, when the push plate moves, the driving gear is driven to rotate through the driving tooth groove, and the driving gear drives the driven rack to move through the synchronous belt and the driven gear. When the two push plates move away from each other, the first spring connects the vibration reduction top plate and the vibration reduction base, and the driven rack drives the clamping rod to clamp the first spring, so that the vibration reduction effect of the first spring is better;

[0028] 3. Through the limiting sleeve, during the lifting and lowering movement of the lifting plate, the limiting sleeve slides in the limiting hole, thereby limiting the lifting and lowering movement of the lifting plate, making the lifting and lowering movement of the lifting plate more stable; when the lifting plate moves upward and the bottom end of the second spring abuts against the lifting plate, the bottom end of the second spring is located in the limiting sleeve, and the limiting sleeve limits the bottom of the second spring, thereby further improving the vibration reduction effect of the second spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the overall structure of the horizontal single-suction pump assembly of this application;

[0030] Figure 2 This is a partial structural schematic diagram of the horizontal single-suction pump assembly for this application to highlight the limiting hole;

[0031] Figure 3 A cross-sectional view of a portion of the trigger assembly is provided for highlighting the horizontal single-suction pump assembly for this application;

[0032] Figure 4 The horizontal single-suction pump assembly of this application is a cross-sectional view of a part of the structure of the switching assembly to highlight the display, at this time, the second spring connects the vibration-damping top plate and the vibration-damping base;

[0033] Figure 5 This is a partial structural schematic diagram of the horizontal single-suction pump assembly of the present application to highlight the state of the second spring connecting the vibration-damping top plate and the vibration-damping base;

[0034] Figure 6 This is a partial structural schematic diagram of the horizontal single-suction pump assembly of the present application to highlight the state of the first spring connecting the vibration-damping top plate and the vibration-damping base;

[0035] Figure 7 For this application Figure 6 Enlarged schematic diagram at point A in the middle.

[0036] Figure numerals: 1, pump body; 2, first driving member; 3, vibration-damping top plate; 4, vibration-damping base; 5, first spring; 6, second spring; 7, trigger assembly; 71, turntable; 72, mounting seat; 73, first tension spring; 74, first magnetic member; 75, trigger switch; 76, second tension spring; 77, second magnetic member; 8, switching assembly; 81, lifting plate; 82, push plate; 83, second driving member; 9, slide groove; 10, accommodating cavity; 11, limiting hole; 12, first wedge Surface; 13, second wedge-shaped surface; 14, driving gear; 15, synchronous belt; 16, driving tooth groove; 17, driven gear; 18, driven rack; 181, first driven rack; 182, second driven rack; 191, first clamping rod; 192, second clamping rod; 20, limiting sleeve; 21, limiting rod; 211, first limiting rod; 212, second limiting rod; 22, limiting pin; 23, limiting groove; 24, telescopic rod; 251, first slide rod; 252, second slide rod. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1-Figure 7 This application is described in further detail.

[0038] An embodiment of the present application discloses a vibration-damped horizontal single-suction pump assembly.

[0039] Reference Figure 1A vibration-damping horizontal single-suction pump assembly includes a pump body 1, a first driving member 2, a vibration-damping top plate 3, a vibration-damping base 4, and a plurality of first springs 5 ​​and second springs 6. The pump body 1 is fixedly mounted on the top wall of the vibration-damping top plate 3, the pump shaft is rotatably mounted in the pump body 1, and the impeller is fixedly mounted on the pump shaft and is located in the pump body 1. The first driving member 2 is fixedly mounted on the top wall of the vibration-damping top plate 3, and the driving shaft of the first driving member 2 is fixedly connected to the pump shaft. In the present application, the first driving member 2 can be selected as a servo motor. The first driving member 2 drives the impeller to rotate through the pump shaft, so that the single-suction pump operates.

[0040] The vibration-damping base 4 is rectangular, and telescopic rods 24 are installed at the four corners of the vibration-damping base 4. The fixed ends of the telescopic rods 24 are fixedly connected to the vibration-damping base 4, and the telescopic ends at the tops of the four telescopic rods 24 are fixedly connected to the four corners of the bottom wall of the vibration-damping top plate 3.

[0041] Reference Figure 1 and Figure 2 , the second springs 6 are installed in four rows along the length direction of the vibration-damping base, each row has four second springs 6, and the first springs 5 ​​are installed in three rows along the length direction of the vibration-damping base, each row has four first springs 5, and each row of first springs 5 ​​is located between two rows of second springs 6. The top ends of the plurality of first springs 5 ​​and second springs 6 are fixedly connected to the bottom wall of the vibration-damping top plate 3, the bottom ends of the first springs 5 ​​abut against the top wall of the vibration-damping base 4, the top wall of the vibration-damping base 4 is provided with a plurality of limiting holes 11, the bottom ends of the plurality of second springs 6 are respectively located in the plurality of limiting holes 11, and the stiffness of the second springs 6 is greater than the stiffness of the first springs 5.

[0042] When the single-suction pump rotates at a low speed, the vibration frequency of the single-suction pump is low, and a plurality of first springs 5 ​​connect the vibration-damping top plate 3 and the vibration-damping base 4. At this time, the first spring 5 with a smaller stiffness is suitable for the low-frequency vibration state of the single-suction pump, so that the single-suction pump can have a better vibration reduction effect when rotating at a low speed.

[0043] Reference Figure 1 , Figure 3 and Figure 4 A trigger assembly 7 is installed on the driving shaft of the driving motor, and a switching assembly 8 is installed in the vibration reduction base 4. When the rotation speed of the single suction pump is greater than the preset value, the trigger assembly 7 can trigger the switching assembly 8, and the switching assembly 8 switches the springs connected between the vibration reduction top plate 3 and the vibration reduction base 4, so that multiple second springs 6 are connected to the vibration reduction top plate 3 and the vibration reduction base 4; when the rotation speed of the single suction pump is less than the preset value, the trigger assembly 7 can trigger the switching assembly 8, and the switching assembly 8 switches the springs connected between the vibration reduction top plate 3 and the vibration reduction base 4, so that multiple first springs 5 ​​are connected to the vibration reduction top plate 3 and the vibration reduction base 4. The use of the second spring 6 with greater stiffness is suitable for the high-frequency vibration state of the single suction pump, so that the single suction pump can have a better vibration reduction effect when rotating at a high speed, so that the single suction pump can achieve a better vibration reduction effect at different rotation speeds.

[0044] Reference Figure 1 and Figure 3 Specifically, the trigger assembly 7 includes a turntable 71, a mounting seat 72, a first tension spring 73, a first magnetic member 74, a trigger switch 75, eight second tension springs 76 and a second magnetic member 77. The turntable 71 is coaxially fixedly mounted on the driving shaft of the first driving member 2. Eight slide grooves 9 are provided in the turntable 71 at equal intervals along its circumference, and each slide groove 9 is provided along the diameter direction of the turntable 71. The eight second tension springs 76 are respectively installed in the eight slide grooves 9, and the eight second magnetic members 77 are respectively slidably installed in the eight slide grooves 9. One end of the second tension spring 76 is fixedly connected to the end wall of the slide groove 9 near the middle of the turntable 71, and the other end is fixedly connected to the second magnetic member 77.

[0045] The mounting seat 72 is fixedly mounted on the top wall of the vibration-damping top plate 3, the mounting seat 72 is located directly below the center point of the turntable 71, and the interior of the mounting seat 72 is hollow. The first tension spring 73 is mounted in the inner cavity of the mounting seat 72, the top of the first tension spring 73 is fixedly connected to the top wall of the inner cavity of the mounting seat 72, the first magnetic member 74 is fixedly mounted on the bottom end of the first tension spring 73, and the second magnetic member 77 is slidably mounted in the mounting seat 72 along the vertical direction. The trigger switch 75 is mounted on the bottom wall of the inner cavity of the mounting seat 72 and is located directly below the first magnetic member 74, and the trigger switch 75 is electrically connected to the switching component 8. In the present application, both the first magnetic member 74 and the second magnetic member 77 can be selected as magnets. When the turntable 71 drives the second magnetic member 77 to rotate to the position closest to the first magnetic member 74, the first magnetic member 74 and the second magnetic member 77 repel each other.

[0046] When the first driving member 2 rotates, it drives the turntable 71 to rotate, and the turntable 71 drives the second magnetic member 77 to rotate. When the first driving member 2 rotates at a low speed, the centrifugal force on the second magnetic member 77 is smaller than the elastic force of the second tension spring 76. At this time, the second magnetic member 77 will not slide, and the repulsive force between the second magnetic member 77 and the first magnetic member 74 is not sufficient to overcome the elastic force of the first tension spring 73. At this time, the first magnetic member 74 will not move in the mounting seat 72.

[0047] When the first driving member 2 rotates at high speed, the centrifugal force exerted on the second magnetic member 77 is greater than the elastic force of the second tension spring 76, and the second magnetic member 77 will move in the slide groove 9 toward the outer peripheral side of the turntable 71, so that the repulsive force between the second magnetic member 77 and the first magnetic member 74 increases. When the repulsive force is greater than the elastic force of the first tension spring 73, the first magnetic member 74 moves downward, and when the first magnetic member 74 moves to abut the trigger switch 75, the trigger switch 75 can trigger the switching component 8 to switch the spring.

[0048] Reference Figure 4Specifically, the switching assembly 8 includes a lifting plate 81, two push plates 82 and four second driving members 83. The vibration-damping base 4 is provided with a receiving chamber 10. The two push plates 82 are slidably mounted in the horizontal direction on the bottom wall of the vibration-damping base 4 located in the receiving chamber 10. The four second driving members 83 are fixedly mounted on the opposite side walls of the receiving chamber 10 of the vibration-damping base 4, and the driving ends of the four second driving members 83 are respectively fixedly connected to the side walls of the two push plates 82 that are away from each other. In the present application, the second driving member 83 can be selected as a cylinder. The second driving member 83 is electrically connected to the trigger switch 75. When the trigger switch 75 is turned on, the second driving member 83 pushes the two push plates 82 to move in a direction close to each other. When the trigger switch 75 is turned off, the second driving member 83 pulls the two push plates 82 to move in a direction away from each other.

[0049] The lifting plate 81 is slidably installed in the accommodating cavity 10 of the vibration-damping base 4 along the vertical direction. The middle part of the bottom wall of the lifting plate 81 is convex downwardly. The bottom of the lifting plate 81 at both ends of the convex part in the horizontal direction is formed with a first wedge surface 12. The tops of the two push plates 82 at one end close to each other are formed with a second wedge surface 13, and the second wedge surface 13 moves to abut against the first wedge surface 12. When the two push plates 82 move toward the direction of approaching each other, the two push plates 82 can push the lifting plate 81 to move upward through the first wedge surface 12 and the second wedge surface 13. When the two push plates 82 move toward the direction of moving away from each other, the lifting plate 81 moves downward under the action of gravity.

[0050] The accommodating cavity 10 of the vibration-damping base 4 is communicated with a plurality of limiting holes 11, and the bottom end of the second spring 6 extends into the accommodating cavity 10 through the limiting holes 11. When the lifting plate 81 moves upward, the top wall of the lifting plate 81 abuts against the bottom end of the second spring 6, and at this time, the second spring 6 connects the vibration-damping top plate 3 and the vibration-damping base 4; when the lifting plate 81 moves downward, the top wall of the lifting plate 81 separates from the bottom end of the second spring 6, and at this time, the first elastic member connects the vibration-damping top plate 3 and the vibration-damping base 4.

[0051] Reference Figure 4 and Figure 5 The vibration-damping base 4 is rotatably mounted on the bottom wall of the accommodating chamber 10, and four driving gears 14 are rotatably mounted. The bottom wall of the push plate 82 is provided with driving tooth grooves 16 at both ends along its length direction. The driving tooth grooves 16 are provided along the moving direction of the push plate 82, and the four driving gears 14 are respectively engaged in the four driving tooth grooves 16. Four driven gears 17 are rotatably mounted on the top wall of the vibration-damping base 4 corresponding to the four driving gears 14. The diameter of the driven gear 17 is smaller than the diameter of the driving gear 14. A synchronous belt 15 is sleeved on the rotating shaft of each driving gear 14. The synchronous belt 15 passes through the vibration-damping base 4, and the other end of the synchronous belt 15 is sleeved on the rotating shaft of the driven gear 17.

[0052] A first slide bar 251 and a second slide bar 252 are slidably mounted on the top wall of the vibration-damping base 4 along its length direction. Two first slide bars 251 and two second slide bars 252 are mounted along the width direction of the vibration-damping base 4, and the two first slide bars 251 are located on two sides relatively far from the two second slide bars 252. A plurality of driven racks 18 are mounted on the first slide bar 251 and the second slide bar 252. The driven racks 18 include a first driven rack 181 and a second driven rack 182. The first driven rack 181 is fixedly mounted on the outer side wall of the first slide bar 251, and the second driven rack 182 is fixedly mounted on the top wall of the second slide bar 252. The two first driven racks 181 and the second driven racks 182 are respectively meshed with the four driven gears 17. When the push plate 82 moves, the push plate 82 drives the driving gear 14 to rotate through the driving tooth groove 16, and the driving gear 14 drives the driven gear 17 to rotate through the synchronous belt 15. The driven gear 17 then drives the first driven rack 181 and the second driven rack 182 to move, thereby driving the first slide bar 251 and the second slide bar 252 to move.

[0053] A plurality of first clamping rods 191 are fixedly installed between the two first slide bars 251, and a plurality of second clamping rods 192 are fixedly installed between the two second slide bars 252. The first clamping rods 191 and the second clamping rods 192 are respectively located on both sides of the first spring 5, and the first clamping rods 191 and the second clamping rods 192 are located at the first spring 5 and convex outwardly in a semicircular shape in a direction away from the first spring 5. When the lifting plate 81 moves upward, the first slide bars 251 and the second slide bars 252 drive the first clamping rods 191 and the second clamping rods 192 to move away from each other (refer to Figure 5 ); When the lifting plate 81 moves downward, the first slide bar 251 and the second slide bar 252 drive the first clamping bar 191 and the second clamping bar 192 to move toward each other (refer to Figure 6 ), the first clamping rod 191 and the second clamping rod 192 clamp and limit the bottom of the first spring 5, thereby increasing the stability of the first spring 5 and improving the vibration reduction effect of the first spring 5.

[0054] Reference Figure 4 and Figure 7 A plurality of limiting sleeves 20 are fixedly mounted on the top wall of the lifting plate 81. When the lifting plate 81 moves upward, the limiting sleeves 20 are driven to move upward. The limiting sleeves 20 slide through the limiting holes 11 in the vertical direction, thereby guiding the lifting and lowering movement of the lifting plate 81. At the same time, the limiting sleeves 20 are sleeved on the bottom of the second spring 6, thereby limiting the second spring 6, making the second spring 6 more stable and increasing the vibration reduction effect of the second spring 6.

[0055] A plurality of limit rods 21 are installed between the two first slide rods 251 and the second slide rods 252, and the limit rods 21 include a first limit rod 211 and a second limit rod 212. A plurality of first limit rods 211 are fixedly installed between the two first slide rods 251, and a plurality of second limit rods 212 are fixedly installed between the two second slide rods 252. The first limit rod 211 and the second limit rod 212 are respectively located on both sides of the second spring 6. The first limit rod 211 and the second limit rod 212 are located at the second spring 6 and convex outward in a semicircular shape in a direction away from the second spring 6, and limit pins 22 are fixedly installed on the side walls of the first limit rod 211 and the second limit rod 212 located at the convex part and close to each other.

[0056] Reference Figure 4 , Figure 5 and Figure 7 The top of the outer wall of the limiting sleeve 20 is provided with two limiting grooves 23. When the lifting plate 81 rises to the highest point, the top of the limiting sleeve 20 extends out of the top wall of the vibration-damping base 4, and the two limiting grooves 23 are located above the top wall of the vibration-damping base 4. The middle part of the bottom wall of the lifting plate 81 is a plane wall, and the top wall of the push plate 82 is a plane wall. After the lifting plate 81 rises to the highest point, the plane wall of the push plate 82 abuts against the plane wall of the lifting plate 81.

[0057] The push plate 82 continues to move, and the first slide bar 251 and the second slide bar 252 drive the first limit bar 211 and the second limit bar 212 to move toward each other (refer to Figure 5 ), the two limiting pins 22 are inserted into the two limiting grooves 23, so that the limiting sleeve 20 can be limited, and then the lifting plate 81 is limited, further increasing the stability of the first spring 5.

[0058] When the two push plates 82 move away from each other, the planar wall of the push plate 82 slides in contact with the planar wall of the lifting plate 81. At this time, the first slide bar 251 and the second slide bar 252 drive the first limit rod 211 and the second limit rod 212 to move away from each other (refer to Figure 6 ), the two limiting pins 22 slide out of the two limiting grooves 23, and when the first wedge surface 12 contacts the second wedge surface 13, the lifting plate 81 drives the limiting sleeve 20 to move downward.

[0059] The implementation principle of a vibration-damping horizontal single-suction pump assembly in the embodiment of the present application is as follows: when the single-suction pump rotates at a low speed, the vibration frequency of the single-suction pump is low, and multiple first springs 5 ​​are connected to the vibration-damping top plate 3 and the vibration-damping base 4. At this time, the first spring 5 with a smaller stiffness is suitable for the low-frequency vibration state of the single-suction pump, so that the single-suction pump can have a better vibration reduction effect when rotating at a low speed. When the speed of the single-suction pump is greater than the preset value, the second magnetic member 77 pushes the first magnetic member 74 to move and abut against the trigger switch 75, and the trigger switch 75 drives the second driving member 83 to operate, and the second driving member 83 pushes the two push plates 82 to move toward each other, and the two push plates 82 push the lifting plate 81 to move upward, and the lifting plate 81 abuts against the bottom end of the second spring 6, so that multiple second springs 6 are connected to the vibration-damping top plate 3 and the vibration-damping base 4, and the second spring 6 with a larger stiffness is suitable for the high-frequency vibration state of the single-suction pump, so that the single-suction pump can have a better vibration reduction effect when rotating at a high speed, so that the single-suction pump can achieve a better vibration reduction effect at different speeds.

[0060] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A vibration-damped horizontal single-suction pump assembly, characterized in that: The invention comprises a pump body (1), a first driving member (2), a vibration-damping top plate (3), a vibration-damping base (4), and a plurality of first springs (5) and a second spring (6); the pump body (1) and the first driving member (2) are both arranged on the vibration-damping top plate (3); the vibration-damping top plate (3) is arranged on the vibration-damping base (4) via a plurality of first springs (5) or second springs (6); a trigger component (7) is arranged on the driving end of the first driving member (2); and a switching component (8) is arranged in the vibration-damping base (4); the stiffness of the first spring (5) is smaller than that of the second spring (6). When the first driving member (2) rotates at a low speed, the vibration-damping top plate (3) is connected to the vibration-damping base (4) through the first spring (5); when the first driving member (2) rotates at a high speed, the first driving member (2) triggers the switching component (8) through the trigger component (7); the switching component (8) switches the connection between the vibration-damping top plate (3) and the vibration-damping base (4), and connects the vibration-damping top plate (3) to the vibration-damping base (4) through the second spring (6); the switching component (8) comprises a lifting plate (81), two push plates (82) and a second driving member (83); the vibration-damping A receiving chamber (10) is provided in the base (4); the lifting plate (81) is slidably arranged in the receiving chamber (10) along a vertical direction; the two push plates (82) are slidably arranged at the bottom of the receiving chamber (10) along a horizontal direction and are located below the lifting plate (81); the two second driving members (83) are arranged in the receiving chamber (10) and are located on a side away from the two push plates (82); the driving end of the second driving member (83) is fixedly connected to the push plate (82) and pushes the push plate (82) to move; and the second driving member (83) is connected to the trigger assembly (7 ) are electrically connected; the top ends of the first spring (5) and the second spring (6) are fixedly connected to the bottom wall of the vibration-damping top plate (3); the bottom end of the first spring (5) abuts against the top wall of the vibration-damping base (4); a plurality of limiting holes (11) connected to the accommodating cavity (10) are provided on the top wall of the vibration-damping base (4); the bottom end of the second spring (6) is located in the limiting hole (11); when the two push plates (82) move toward each other, the push plate (82) pushes the lifting plate (81) to move upward, and the lifting plate (81) moves to abut against the bottom end of the second spring (6).

2. A vibration-damped horizontal single-suction pump assembly according to claim 1, characterized in that: The trigger assembly (7) comprises a turntable (71), a mounting seat (72), a first tension spring (73), a first magnetic member (74), a trigger switch (75), a plurality of second tension springs (76) and a second magnetic member (77); the turntable (71) is arranged on the driving shaft of the first driving member (2); a plurality of slide grooves (9) are provided in the turntable (71) along its circumference; a plurality of second magnetic members (77) are slidably arranged in the plurality of slide grooves (9) along the diameter direction of the turntable (71); a plurality of second tension springs (76) are arranged in the plurality of slide grooves (9) and are located on one side of the second magnetic member (77) close to the middle of the turntable (71); two ends of the second tension spring (76) are respectively connected to the end wall of the slide groove (9) and the first magnetic member (74); The two magnetic parts (77) are fixedly connected; the mounting seat (72) is fixedly arranged on the vibration-damping top plate (3) and is located directly below the turntable (71); the first magnetic part (74) is arranged in the mounting seat (72) for lifting and sliding; the first tension spring (73) is arranged in the mounting seat (72) and is located above the first magnetic part (74); the two ends of the first tension spring (73) are respectively fixedly connected to the mounting seat (72) and the top wall of the first magnetic part (74); the trigger switch (75) is arranged in the mounting seat (72); the trigger switch (75) is electrically connected to the switching component (8) and is located below the first magnetic part (74); and the first magnetic part (74) and the second magnetic part (77) repel each other.

3. A vibration-damped horizontal single-suction pump assembly according to claim 2, characterized in that: The bottom wall of the lifting plate (81) is provided with first wedge-shaped surfaces (12) on opposite sides, and the top ends of the side walls of the two push plates (82) close to each other are provided with second wedge-shaped surfaces (13). When the push plates (82) move, the second wedge-shaped surfaces (13) move to abut against the first wedge-shaped surfaces (12) and push the lifting plate (81) to move upward.

4. A vibration-damped horizontal single-suction pump assembly according to claim 3, characterized in that: The middle part of the bottom wall of the lifting plate (81) is a plane wall, and the top wall of the push plate (82) is located on the plane wall. When the push plate (82) lifts the lifting plate (81), the plane wall of the push plate (82) abuts against the plane wall of the lifting plate (81) and keeps the lifting plate (81) stable.

5. A vibration-damped horizontal single-suction pump assembly according to claim 4, characterized in that: A plurality of driving gears (14) are rotatably arranged in the bottom wall of the accommodating cavity (10) of the vibration-damping base (4); a driving tooth groove (16) is provided on the bottom wall of the push plate (82) along its own moving direction; the driving gear (14) is meshed in the driving tooth groove (16); a driven gear (17) is rotatably arranged on the top wall of the vibration-damping base (4); the driven gear (17) is transmission-connected to the driving gear (14) through a synchronous belt (15); a driven rack (18) meshing with the driven gear (17) is slidably arranged on the vibration-damping base (4); a plurality of clamping rods are arranged on the driven rack (18); when the two push plates (82) move in a direction away from each other, the driven rack (18) drives the clamping rod to clamp the bottom end of the first spring (5); when the two push plates (82) move in a direction approaching each other, the driven rack (18) drives the clamping rod to release the clamping of the first spring (5).

6. A vibration-damped horizontal single-suction pump assembly according to claim 5, characterized in that: A plurality of limiting sleeves (20) are fixedly arranged on the top wall of the lifting plate (81), the limiting sleeves (20) slide through the limiting holes (11), and the bottom end of the second spring (6) is located in the limiting sleeve (20).

7. A vibration-damped horizontal single-suction pump assembly according to claim 6, characterized in that: A limiting rod (21) is arranged on the driven rack (18), and a plurality of limiting pins (22) are arranged on the limiting rod (21). A plurality of limiting grooves (23) are opened on the top of the side wall of the limiting sleeve (20). When the two push plates (82) drive the lifting plate (81) to rise to the highest point, the top end of the limiting sleeve (20) passes through the limiting hole (11) and extends to the outside of the vibration-damping base (4). When the push plate (82) contacts the plane wall of the lifting plate (81) and the push plate (82) moves, the limiting rod (21) drives the limiting pins (22) to be inserted into the limiting grooves (23) of the limiting sleeve (20).

8. The vibration-damped horizontal single-suction pump assembly according to claim 1, characterized in that: Telescopic rods (24) are provided at the four corners of the vibration-damping base (4), and the telescopic ends of the telescopic rods (24) are fixedly connected to the bottom wall of the vibration-damping top plate (3).

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