A self-priming device for horizontal pump end main shaft linkage

Abstract

The present invention relates to the technical field of horizontal pumps. The present invention discloses a self-priming device for the linkage of the main shaft of a horizontal pump end, comprising: a base, a motor, a self-priming mechanism, a pump body, a first buoyancy valve, a three-way joint, a second buoyancy valve and a connecting pipe; the motor is mounted on the right side of the upper surface of the base; the self-priming mechanism is mounted on the upper surface of the base and is located on the left side of the motor; the pump body is arranged on the left side of the upper surface of the base; the first buoyancy valve is fixedly mounted on the water outlet of the pump body; the three-way joint is screwed to the water inlet of the pump body; and the second buoyancy valve is screwed to the top outlet of the three-way joint. The self-priming device for the linkage of the main shaft of a horizontal pump end can be disconnected after completing the liquid absorption liquid level condition, so that the self-priming part is no longer in a working motion state when the pump body is working normally, reducing wear and improving its self-priming effect and service life.

Description

Technical Field

[0001] The invention relates to the technical field of horizontal pumps, in particular to a self-priming device for main shaft linkage at a horizontal pump end. Background Art

[0002] A horizontal pump is a commonly used centrifugal pump. Its main feature is its horizontal installation. It's typically used to transport liquids such as clean water, sewage, and seawater. A horizontal pump consists of a pump body, impeller, bearings, and seals. The pump body is divided into suction and discharge sections, connected by bolts. The impeller can be either backward- or forward-inclined, depending on the flow rate and head requirements. Bearings support the impeller and shaft, ensuring proper operation. Mechanical seals or packing seals are used to prevent leakage. When the motor starts, the pump shaft rotates, generating centrifugal force in the impeller, drawing liquid from the suction port into the pump body. The impeller's rotation then pushes the liquid toward the discharge port, creating a constant flow rate and volume. Throughout operation, the pressure inside the pump body drops, continuously drawing and pushing the liquid in. Horizontal pumps are widely used in municipal engineering, building drainage, industrial production, agricultural irrigation, and marine equipment. Horizontal pumps are available in various materials, models, and power ratings, depending on the application and needs.

[0003] In the prior art, since the self-priming ability of the horizontal pump is weak and the self-priming height is limited, it is difficult to meet the needs of some special occasions. Therefore, it is necessary to install a self-priming device on the horizontal pump. The self-priming device currently used is shown in the invention with the authorization announcement number CN106401949B. The invention discloses a self-priming device for the main shaft linkage of the horizontal pump end, a rotor is provided in the pump chamber, and the rotor is rotatably mounted on the pump shaft. The cross section of the pump chamber is circular, and the cross section of the rotor is elliptical, and the length of the major axis of the ellipse is equal to the diameter length of the circle; the sliding channel is connected to the pump chamber through a notch opened on the pump chamber; the baffle can be slid up and down in the sliding channel, and the baffle seals the sliding channel, and the baffle bottom A rotating shaft is provided on both sides of the square, and a rolling slide is rotatably mounted on the rotating shaft, and the bottom of the rolling slide is in conflict with the top of the rotor; the bottom of the float is connected to the baffle through a connecting rod passing through the bottom of the tank body; a one-way outlet valve for discharging fluid outward is provided on the top of the tank body; a suction port is provided on one side of the pump body, and a discharge port is provided on the other side of the pump body. The pump cavity is connected to the inner cavity of the tank body through the discharge port and the discharge channel, and the discharge port and the suction port are respectively located on both sides of the sliding channel. In the existing technical solution, the internal self-priming components of the pump body remain in a connected moving state when the pump body is working, which causes the sealing performance to be lost due to long-term wear caused by friction, resulting in gas leakage inside the pump body, reducing the self-priming ability and affecting the self-priming effect. Summary of the Invention

[0004] The object of the present invention is to provide a self-priming device for horizontal pump end main shaft linkage to solve the technical problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a self-priming device for horizontal pump end main shaft linkage, comprising: a base, a motor, a self-priming mechanism, a pump body, a first buoyancy valve, a three-way joint, a second buoyancy valve and a connecting pipe;

[0006] The motor is installed on the right side of the upper surface of the base; the self-priming mechanism is installed on the upper surface of the base and is located on the left side of the motor; the pump body is arranged on the left side of the upper surface of the base; the first buoyancy valve is fixedly installed on the water outlet of the pump body; the three-way joint is screwed to the water inlet of the pump body; the second buoyancy valve is screwed to the top outlet of the three-way joint; one end of the connecting pipe is screwed to the top outlet of the second buoyancy valve.

[0007] Preferably, the self-priming mechanism includes: a self-priming mechanism housing, a suction assembly, a first one-way valve, a second one-way valve, a coupling, a connecting shaft, a linkage assembly and a fixing assembly; the self-priming mechanism housing is fixedly mounted on the top of the base; the suction assembly is arranged at the top of the inner cavity of the base; the first one-way valve is arranged at the top opening on the rear side of the inner cavity of the self-priming mechanism housing, the outer side of the first one-way valve extends out of the outer wall of the self-priming mechanism housing and is connected to the other end of the connecting pipe; the second one-way valve is arranged at the top opening of the inner cavity of the self-priming mechanism housing, and the top of the second one-way valve extends out of the outer wall of the self-priming mechanism housing; the number of the couplings is two, and the two couplings are respectively rotatably connected to the left and right bottom ends of the inner cavity of the self-priming mechanism housing through bearings, the left coupling is locked with the impeller axis inside the pump body, and the right coupling is locked with the output end axis of the motor; the connecting shaft is locked at the inner sides of the left and right couplings respectively along the left and right directions; the linkage assembly is arranged on the outside of the connecting shaft; the fixing assembly is arranged at the bottom of the inner cavity of the self-priming mechanism housing.

[0008] Preferably, the suction assembly includes: a mounting plate, a limit socket, a piston plate, a limit rod, a drive seat, a transmission gear set, a connecting gear, a first connecting seat, a second connecting seat, a first connecting rod and a fixed seat; the mounting plate is installed in the middle of the inner cavity of the self-priming mechanism shell; the number of the limit sockets is four, and the four limit sockets are respectively embedded in the four corners of the mounting plate; the piston plate is arranged in the inner cavity of the self-priming mechanism shell and is located above the mounting plate, and the outer diameter of the piston plate is adapted to the inner cavity of the self-priming mechanism shell; the number of the limit rods is four, and the four limit rods are respectively inserted into the inner cavities of the four limit sockets, and the top of the limit rod is fixedly connected to the lower surface of the piston plate; the drive seat is rotatably connected to the The bottom end of the drive seat extends out of the lower surface of the mounting plate in the middle of the upper surface of the mounting plate; one end of the transmission gear group is screwed to the bottom of the axis of the drive seat, and the transmission gear group adopts ninety-degree meshing of bevel gears at both ends; the connecting gear is rotatably connected to the bottom of the mounting plate through a pin shaft, and the axis of the connecting gear is fixedly connected to the other end of the transmission gear group; one end of the first connecting seat is rotatably connected to the inner side of the drive seat through a bearing; the second connecting seat is rotatably connected to the inner side of the other end of the first connecting seat through a bearing; one end of the first connecting rod is rotatably connected to the inner side of the second connecting seat through a pin shaft; the fixed seat is arranged in the middle of the lower surface of the piston plate, and the other end of the first connecting rod is rotatably connected to the outer side of the fixed seat through a pin shaft.

[0009] Preferably, the driving seat is in a Z shape.

[0010] Preferably, the drive seat can be driven to rotate under the transmission of the transmission gear set, and the drive seat drives one end of the first connecting seat on its outer side to rotate eccentrically, thereby causing the first connecting seat to reciprocate up and down.

[0011] The transmission gear of claim 1, wherein the first gear is secured to the front of the gear train with a pinion configured to engage with the pinion shaft of the drive gear. The second gear is secured to the front of the gear train with a pinion configured to engage with the pinion shaft of the drive gear.

[0012] Preferably, tooth grooves are provided on both the inner and outer sides of the gear ring.

[0013] Preferably, the fixing assembly includes: a driving housing, a slot seat, a spring rod, a toggle rod, a connecting frame, a lifting frame, a second connecting rod, a clamping seat and a limiting rod; the driving housing is arranged at the bottom end of the inner cavity of the self-priming mechanism housing; the slot seat is installed in the middle of the bottom end of the driving housing, and the bottom end of the slot seat extends out of the lower surface of the self-priming mechanism housing; the spring rod is inserted into the inner cavity of the slot seat, and the bottom end of the spring rod extends out of the lower surface of the slot seat; the toggle rod is rotatably connected to the rear bottom of the slot seat through a pin shaft; one end of the connecting frame is rotatably connected to the top of the outer wall of the toggle rod through a pin shaft, and the other end of the connecting frame is rotatably connected to the bottom end of the spring rod through a pin shaft; The lifting frame is arranged in the inner cavity of the driving shell, and the bottom end of the lifting frame is connected to the top screw of the spring rod; the number of the second connecting rods is two groups, and the number of the second connecting rods in each group is two, and one end of the two groups of second connecting rods is respectively rotatably connected to the upper and lower ends on the left and right sides of the lifting frame through pins; the number of the clamping seats is two, and the two clamping seats are respectively rotated on the outside of the left and right groups of second connecting rods through pins; the number of the limiting rods is two, and one end of the two limiting rods is respectively rotated on the left and right ends of the inner side of the driving shell through pins, and the other ends of the two limiting rods are respectively rotatably connected to the outside of the left and right groups of bottom second connecting rods through pins.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The motor drives the coupling at the corresponding position to drive the connecting shaft to rotate, the connecting shaft drives the driving gear to rotate, the gear ring rotates under the action of the driven gears on both sides, and the connecting gear drives the transmission gear set to rotate under the action of the gear ring. The driving seat drives the first connecting seat to drive the bottom end of the first connecting rod to move in a circular circumferential direction. The first connecting rod drives the fixed seat to drive the piston plate to move up and down, thereby realizing a cyclic suction operation. The coupling on the other side drives the impeller inside the pump body to rotate, so that the liquid enters the first buoyancy valve under the action of the rotation of the impeller inside the pump body and the centrifugal force, so that the valve inside the first buoyancy valve is opened under the action of the buoyancy of the liquid to realize liquid transportation.

[0016] 2. By pushing the toggle lever downward and locking it, the toggle lever drives the spring rod in cooperation with the connecting frame to move the lifting frame downward. The lifting frame drives the second connecting rods on the left and right sides to drive the clamping seat to move inward and fit with the outside of the gear ring to fix the gear ring. The connecting shaft drives the driving gear to rotate, and the driving gear drives the driven gears on both sides to move circumferentially along the inner tooth groove of the gear ring, stopping suction while avoiding wear caused by the continued operation of the self-priming device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention.

[0018] Figure 2 for Figure 1 Exploded diagram of the self-priming mechanism.

[0019] Figure 3 for Figure 2 Exploded view of the suction assembly.

[0020] Figure 4 for Figure 2 Schematic diagram of the linkage component structure.

[0021] Figure 5 for Figure 4 Exploded view of the linkage assembly.

[0022] Figure 6 for Figure 2 Exploded view of the fixed components.

[0023] In the figure: 1. Base; 2. Motor; 3. Self-priming mechanism; 31. Self-priming mechanism housing; 32. First one-way valve; 33. Second one-way valve; 34. Coupling; 35. Connecting shaft; 4. Suction assembly; 41. Mounting plate; 42. Limiting socket; 43. Piston plate; 44. Limiting rod; 45. Driving seat; 46. Transmission gear set; 47. Connecting gear; 48. First connecting seat; 49. Second connecting seat; 410. First connecting rod; 411. Fixed seat; 5. Linking assembly; 51. First mounting bracket; 52. Gear ring; 53. Second mounting bracket; 54. Rotating bracket; 55. Driven gear; 56. Driving gear; 6. Fixing assembly; 61. Drive housing; 62. Slot seat; 63. Spring rod; 64. Toggle rod; 65. Connecting bracket; 66. Lifting bracket; 67. Second connecting rod; 68. Clamping seat; 69. Limiting rod; 7. Pump body; 8. First buoyancy valve; 9. Three-way connector; 10. Second buoyancy valve; 11. Connecting pipe. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-6The present invention provides a technical solution: a self-priming device for horizontal pump end main shaft linkage, comprising: a base 1, a motor 2, a self-priming mechanism 3, a pump body 7, a first buoyancy valve 8, a three-way joint 9, a second buoyancy valve 10 and a connecting pipe 11; the motor 2 is mounted on the right side of the upper surface of the base 1; the self-priming mechanism 3 is mounted on the upper surface of the base 1 and is located on the left side of the motor 2; the pump body 7 is arranged on the left side of the upper surface of the base 1, and an impeller is arranged inside the pump body 7. The liquid inside the pump body 7 is sucked into the first buoyancy valve 8 by the three-way joint 9 under the action of the internal impeller rotation force and centrifugal force; the first buoyancy valve 8 is fixedly mounted on the water outlet of the pump body 7, and the outside of the first buoyancy valve 8 can be connected to the liquid supply device or the conduit. The first buoyancy valve 8 is provided with a buoyancy ball inside, which can be opened and sealed with the pump body 7 under the action of buoyancy. The first buoyancy valve 8 is in a sealed state at ordinary times to ensure that the pump body 7 The internal environment is sealed. When the liquid inside the pump body 7 enters the first buoyancy valve 8 under pressure, the internal buoyancy ball inside the first buoyancy valve 8 will be lifted, and the sealing state of the first buoyancy valve 8 at the joint of the pump body 7 will be released to realize normal liquid transportation; the three-way joint 9 is screwed to the water inlet of the pump body 7, and the outside of the three-way joint 9 can be connected to the liquid supply device or the conduit; the second buoyancy valve 10 is screwed to the top outlet of the three-way joint 9, and a buoyancy ball is arranged inside the second buoyancy valve 10, which can be opened and sealed with the connecting pipe 11 under the action of buoyancy. After the liquid level inside the three-way joint 9 exceeds the specified working height of the pump body 7, the liquid inside the three-way joint 9 pushes up the internal buoyancy ball of the second buoyancy valve 10, realizing the sealing of the second buoyancy valve 10 at the joint of the connecting pipe 11, preventing liquid from entering the interior of the connecting pipe 11; one end of the connecting pipe 11 is screwed to the top outlet of the second buoyancy valve 10.

[0026] As a preferred solution, further, Figure 2As shown, the self-priming mechanism 3 includes: a self-priming mechanism housing 31, a suction component 4, a first one-way valve 32, a second one-way valve 33, a coupling 34, a connecting shaft 35, a linkage component 5 and a fixing component 6; the self-priming mechanism housing 31 is fixedly mounted on the top of the base 1; the suction component 4 is arranged at the top of the inner cavity of the base 1; the first one-way valve 32 is arranged at the top opening on the rear side of the inner cavity of the self-priming mechanism housing 31, and the outer side of the first one-way valve 32 extends out of the outer wall of the self-priming mechanism housing 31 and is connected to the other end of the connecting pipe 11. The internal valve plate of the first one-way valve 32 is a flip valve plate that can be flipped downward. When the inner cavity of the self-priming mechanism housing 31 is a negative pressure environment, the internal valve plate of the first one-way valve 32 is opened under the action of pressure. When the inner cavity of the self-priming mechanism housing 31 is a positive pressure environment, the internal valve plate of the first one-way valve 32 is closed under the action of pressure; the second one-way valve 33 is arranged at the self-priming mechanism housing 31 At the top opening of the inner cavity, the top of the second one-way valve 33 extends out of the outer wall of the self-priming mechanism housing 31. The internal valve plate of the second one-way valve 33 is a flip valve plate that can be flipped upward. When the inner cavity of the self-priming mechanism housing 31 is a negative pressure environment, the internal valve plate of the second one-way valve 33 is closed under the action of pressure. When the inner cavity of the self-priming mechanism housing 31 is a positive pressure environment, the internal valve plate of the second one-way valve 33 is opened under the action of pressure; there are two couplings 34, and the two couplings 34 are rotatably connected to the bottom ends of the left and right sides of the inner cavity of the self-priming mechanism housing 31 through bearings. The left coupling 34 is locked with the impeller axis inside the pump body 7, and the right coupling 34 is locked with the output end axis of the motor 2; the connecting shaft 35 is locked on the inner sides of the left and right couplings 34 respectively along the left and right directions; the linkage assembly 5 is arranged on the outside of the connecting shaft 35; the fixing assembly 6 is arranged at the bottom of the inner cavity of the self-priming mechanism housing 31.

[0027] As a preferred solution, further, Figure 3As shown, the suction assembly 4 includes: a mounting plate 41, a limit socket 42, a piston plate 43, a limit rod 44, a drive seat 45, a transmission gear set 46, a connecting gear 47, a first connecting seat 48, a second connecting seat 49, a first connecting rod 410 and a fixed seat 411; the mounting plate 41 is installed in the middle of the inner cavity of the self-priming mechanism housing 31; the number of the limit sockets 42 is four, and the four limit sockets 42 are respectively embedded in the four corners of the mounting plate 41, and the limit rod 44 can move up and down in the inner cavity of the limit socket 42; the piston plate 43 is arranged in the inner cavity of the self-priming mechanism housing 31 and is located above the mounting plate 41, and the piston plate 43 The outer diameter is adapted to the inner cavity of the self-priming mechanism housing 31, and the piston plate 43 is made of rubber material to ensure the closedness of the contact surface with the inner cavity of the self-priming mechanism housing 31; the number of limiting rods 44 is four, and the four limiting rods 44 are respectively inserted into the inner cavity of the four limiting sockets 42, and the top of the limiting rod 44 is fixedly connected to the lower surface of the piston plate 43, and the limiting rod 44 plays a role in limiting the piston plate 43; the driving seat 45 is rotatably connected to the middle part of the upper surface of the mounting plate 41 through a bearing, and the bottom end of the driving seat 45 extends out of the lower surface of the mounting plate 41. The shape of the driving seat 45 is Z-shaped, and the driving seat 45 drives the outside of itself One end of the first connecting seat 48 rotates eccentrically, thereby causing the first connecting seat 48 to reciprocate up and down; one end of the transmission gear set 46 is screwed to the bottom of the axis of the driving seat 45, and the transmission gear set 46 adopts a 90-degree meshing of bevel gears at both ends. The transmission gear set 46 can play a transmission role between the connecting gear 47 and the driving seat 45, and the connecting gear 47 drives the transmission gear set 46 to rotate under the action of the rotational force of the gear ring 52; the connecting gear 47 is rotatably connected to the bottom of the mounting plate 41 through a pin shaft, and the axis of the connecting gear 47 is fixedly connected to the other end of the transmission gear set 46; one end of the first connecting seat 48 is rotatably connected to the driving seat 45 through a bearing The inner side of the movable seat 45; the second connecting seat 49 is rotatably connected to the inner side of the other end of the first connecting seat 48 through a bearing. During the rotation of the second connecting seat 49 in cooperation with the first connecting seat 48, the second connecting seat 49 can rotate at a certain angle on the inner side of the first connecting seat 48; one end of the first connecting rod 410 is rotatably connected to the inner side of the second connecting seat 49 through a pin shaft; the fixed seat 411 is arranged in the middle of the lower surface of the piston plate 43, and the other end of the first connecting rod 410 is rotatably connected to the outer side of the fixed seat 411 through a pin shaft. The first connecting rod 410 can deflect with the rotatable connection with the outer side of the fixed seat 411 as the axis.

[0028] As a preferred solution, further, Figure 4-5As shown, the linkage assembly 5 includes: a first mounting frame 51, a gear ring 52, a second mounting frame 53, a rotating frame 54, a driven gear 55 and a driving gear 56; the first mounting frame 51 is arranged on the right side of the lower surface of the mounting plate 41, and the top through hole of the first mounting frame 51 is rotatably connected to the axis of the connecting gear 47 through a bearing; the gear ring 52 is rotatably connected to the left bottom end of the first mounting frame 51 through a bearing, and a through hole is opened on the inner side of the axis of the gear ring 52, and the inner cavity of the through hole is sleeved with the outer wall of the connecting shaft 35, and the gear ring 5 2 is meshed with the connecting gear 47, and the gear ring 52 is provided with tooth grooves on both sides. The connecting shaft 35 can rotate inside the axis of the gear ring 52, and the gear ring 52 and the connecting shaft 35 do not affect each other during rotation. When the gear ring 52 is not fixed by the fixing component 6, the connecting shaft 35 synchronously drives the driving gear 56 to rotate, so that the driven gears 55 on both sides drive the gear ring 52 to rotate under the action of the rotating force of the driving gear 56, thereby realizing the transmission connection between the connecting shaft 35 and the gear ring 52. When the gear ring 52 is fixed by the fixing component 6, the connecting shaft 35 synchronously drives the driving gear 56 to rotate, so that the driven gears 55 on both sides are affected by the rotating force of the driving gear 56. However, since the gear ring 52 is in a fixed state, the rotating frame 54 drives both sides to rotate along the tooth grooves inside the gear ring 52, thereby disconnecting the transmission connection between the connecting shaft 35 and the gear ring 52; the second mounting frame 53 is provided on the left side of the lower surface of the mounting plate 41; the rotating frame 54 is rotatably connected to the right bottom end of the second mounting frame 53 through a bearing, and a through hole is provided on the inner side of the axis of the rotating frame 54 The outer sides of the two driven gears 55 are respectively engaged with the inner sides of the gear ring 52; the driving gear 56 is keyed to the outer wall of the connecting shaft 35, and the outer sides of the driving gear 56 are engaged with the driven gears 55 on both sides.

[0029] As a preferred solution, further, Figure 5As shown, the fixing assembly 6 includes: a driving housing 61, a slot seat 62, a spring rod 63, a toggle rod 64, a connecting frame 65, a lifting frame 66, a second connecting rod 67, a clamping seat 68 and a limiting rod 69; the driving housing 61 is arranged at the bottom end of the inner cavity of the self-priming mechanism housing 31; the slot seat 62 is installed in the middle of the bottom end of the driving housing 61, and the bottom end of the slot seat 62 extends out of the lower surface of the self-priming mechanism housing 31; the spring rod 63 is inserted into the inner cavity of the slot seat 62, and the bottom end of the spring rod 63 extends out of the lower surface of the slot seat 62. The spring rod 63 is provided with a spring inside, which can push the spring rod 63 upward to keep the lifting frame 66 lifted when the spring rod 63 is not pulled downward; the toggle rod 64 is connected to the bottom of the rear side of the slot seat 62 by a pin, and a locking device is installed on the outside of the toggle rod 64, which can be locked and fixed when the toggle rod 64 moves to a specified position, and the toggle rod 64 can be rotated with the pin connection with the slot seat 62 as the axis; one end of the connecting frame 65 is rotated by the pin The top of the outer wall of the toggle rod 64 is connected, and the other end of the connecting frame 65 is rotatably connected to the bottom end of the spring rod 63 through a pin shaft; the lifting frame 66 is set in the inner cavity of the driving shell 61, and the bottom end of the lifting frame 66 is screwed to the top end of the spring rod 63; the number of the second connecting rod 67 is two groups, and the number of each group of second connecting rods 67 is two. One end of the two groups of second connecting rods 67 is rotatably connected to the upper and lower ends of the left and right sides of the lifting frame 66 through pin shafts; the number of the clamping seats 68 is two, and the two clamping seats 68 are respectively rotated on the left and right sides by pin shafts. The outer side of the second connecting rod 67 of the group and the inner side of the clamping seat 68 are equipped with rubber pads to increase friction while avoiding damage to the gear ring 52; there are two limit rods 69, and one end of the two limit rods 69 is rotated at the left and right ends of the inner side of the driving shell 61 through a pin shaft, and the other ends of the two limit rods 69 are respectively connected to the outer sides of the left and right groups of bottom second connecting rods 67 through a pin shaft. The limit rod 69 can rotate with the rotation connection point of the inner pin shaft of the driving shell 61 as the axis, and the limit rod 69 plays a role in limiting the second connecting rod 67.

[0030] Here's how it works:

[0031] Step 1: During operation, the staff controls the motor 2 to start, and the motor 2 drives the coupling 34 at the corresponding position to drive the connecting shaft 35 to rotate, and drives the coupling 34 on the other side to rotate synchronously, and the connecting shaft 35 drives the driving gear 56 to rotate, so that the driven gears 55 on both sides rotate under the action of the rotational force of the driving gear 56, and the gear ring 52 rotates synchronously under the action of the rotational force of the driven gears 55 on both sides. Since the connecting gear 47 and the gear ring 52 are engaged, the connecting gear 47 drives the transmission gear set 46 to rotate under the action of the rotational force of the gear ring 52, and drives the driving seat 45 to rotate under the transmission of the transmission gear set 46. The driving seat 45 drives one end of the first connecting seat 48 on its outer side to rotate eccentrically, thereby causing the first connecting seat 48 to reciprocate up and down, and the first connecting seat 48 drives the first connecting rod 41 with the cooperation of the second connecting seat 49. 0, the bottom end of the circular circumferential movement, and the first connecting rod 410 drives the fixed seat 411 through its own vertical up and down displacement, so that the fixed seat 411 drives the piston plate 43 to reciprocate up and down. When the piston plate 43 moves downward, a negative pressure environment is formed above the inner cavity of the self-priming mechanism housing 31, so that the internal valve plate of the first one-way valve 32 is opened, and the internal valve plate of the second one-way valve 33 is closed. With the cooperation of the connecting pipe 11, a negative pressure environment is formed in the inner cavity of the three-way joint 9, and the external liquid is sucked into the three-way joint 9 from the outside under the action of pressure. When the piston plate 43 moves upward, a positive pressure environment is formed in the inner cavity of the self-priming mechanism housing 31, so that the internal valve plate of the first one-way valve 32 is closed under the action of pressure, and the internal valve plate of the second one-way valve 33 is opened under the action of pressure, so that the gas in the inner cavity of the self-priming mechanism housing 31 is discharged from the second one-way valve 33, thereby realizing a cyclic suction operation;

[0032] Step 2: When the liquid inside the three-way joint 9 submerges the buoyancy device inside the second buoyancy valve 10, thereby closing the inner cavity of the second buoyancy valve 10, the staff member pushes down and locks the toggle rod 64. The toggle rod 64 drives the spring rod 63 to move downward in the inner cavity of the slot seat 62 in cooperation with the connecting frame 65. The spring inside the spring rod 63 is squeezed and drives the lifting frame 66 to move downward. The lifting frame 66 drives the inner ends of the second connecting rods 67 on the left and right sides to move downward. The two sets of second connecting rods 67 on the left and right sides drive the clamping seat 68 to move inward under the limiting action of the limiting rod 69, so that the clamping seats 68 on the left and right sides are fixed with the gears. The outside of the wheel ring 52 fits tightly to fix the gear ring 52. The connecting shaft 35 rotates by itself and drives the driving gear 56 to rotate at the same time. The driving gear 56 drives the driven gears 55 on both sides to move circumferentially along the inner tooth grooves of the gear ring 52 under the limiting action of the rotating frame 54. The liquid inside the three-way joint 9 enters the pump body 7. The coupling 34 on the other side drives the impeller inside the pump body 7 to rotate. Under the action of the rotation of the impeller inside the pump body 7 and the centrifugal force, the liquid enters the first buoyancy valve 8, so that the valve inside the first buoyancy valve 8 is opened under the action of the buoyancy of the liquid to realize liquid transportation.

[0033] The present invention optimizes the existing horizontal pump end main shaft linkage self-priming device technology and improves the self-priming device so that it can disconnect after completing the liquid absorption liquid level condition, so that the self-priming part is no longer in a working motion state when the pump body is working normally, thereby reducing wear and improving its self-priming effect and service life.

[0034] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A self-priming device for horizontal pump end main shaft linkage, characterized in that: include: Base (1); A motor (2) is mounted on the right side of the upper surface of the base (1); A self-priming mechanism (3) is mounted on the upper surface of the base (1) and is located on the left side of the motor (2); A pump body (7) is arranged on the left side of the upper surface of the base (1); A first buoyancy valve (8) fixedly mounted on the water outlet of the pump body (7); A three-way connector (9) screwed to the water inlet of the pump body (7); A second buoyancy valve (10) screwed to the top outlet of the three-way connector (9); A connecting pipe (11), one end of which is screwed to the top outlet of the second buoyancy valve (10); The self-priming mechanism (3) comprises: A self-priming mechanism housing (31) is fixedly mounted on the top of the base (1); A suction assembly (4) is arranged at the top of the inner cavity of the base (1); A first one-way valve (32) is arranged at the top opening on the rear side of the inner cavity of the self-priming mechanism housing (31), wherein the outer side of the first one-way valve (32) extends out of the outer wall of the self-priming mechanism housing (31) and is connected to the other end of the connecting pipe (11); a second one-way valve (33) disposed at the top opening of the inner cavity of the self-priming mechanism housing (31), the top of the second one-way valve (33) extending out of the outer wall of the self-priming mechanism housing (31); Couplings (34), the number of the couplings (34) is two, and the two couplings (34) are rotatably connected to the bottom ends of the left and right sides of the inner cavity of the self-priming mechanism housing (31) through bearings, the left coupling (34) is locked with the axis of the impeller inside the pump body (7), and the right coupling (34) is locked with the axis of the output end of the motor (2); The connecting shaft (35) is locked on the inner sides of the left and right couplings (34) respectively along the left and right directions; A linkage assembly (5) is arranged outside the connecting shaft (35); A fixing assembly (6) is arranged at the bottom of the inner cavity of the self-priming mechanism housing (31); The fixing assembly (6) comprises: A driving housing (61) is arranged at the bottom end of the inner cavity of the self-priming mechanism housing (31); A slot seat (62) is mounted in the middle of the bottom end of the drive housing (61), and the bottom end of the slot seat (62) extends out of the lower surface of the self-priming mechanism housing (31); A spring rod (63) is inserted into the inner cavity of the slot seat (62), and the bottom end of the spring rod (63) extends out of the lower surface of the slot seat (62); A toggle rod (64) is rotatably connected to the rear bottom of the slot seat (62) via a pin; A connecting frame (65) having one end rotatably connected to the top of the outer wall of the toggle rod (64) via a pin, and the other end of the connecting frame (65) is rotatably connected to the bottom end of the spring rod (63) via a pin; A lifting frame (66) is arranged in the inner cavity of the driving housing (61), and the bottom end of the lifting frame (66) is screw-connected to the top end of the spring rod (63); The second connecting rods (67) are provided in two groups, each group of the second connecting rods (67) comprises two second connecting rods, and one end of the two groups of the second connecting rods (67) is rotatably connected to the upper and lower ends of the left and right sides of the lifting frame (66) through a pin shaft; A clamping seat (68), wherein the number of the clamping seats (68) is two, and the two clamping seats (68) are respectively rotated on the outsides of the left and right sets of second connecting rods (67) through pins; The limiting rod (69) is provided in two numbers, one end of each of the limiting rods (69) is respectively rotated on the left and right ends of the inner side of the driving housing (61) through a pin shaft, and the other end of each of the limiting rods (69) is respectively connected to the outer sides of the left and right groups of bottom second connecting rods (67) through a pin shaft.

2. A self-priming device for horizontal pump end main shaft linkage according to claim 1, characterized in that: The suction assembly (4) comprises: A mounting plate (41) mounted in the middle of the inner cavity of the self-priming mechanism housing (31); Limiting sockets (42), the number of the limiting sockets (42) is four, and the four limiting sockets (42) are respectively embedded in the four corners of the mounting plate (41); A piston plate (43) is arranged in the inner cavity of the self-priming mechanism housing (31) and is located above the mounting plate (41), and the outer diameter of the piston plate (43) is adapted to the inner cavity of the self-priming mechanism housing (31); Limiting rods (44), the number of the limiting rods (44) is four, the four limiting rods (44) are respectively inserted into the inner cavities of the four limiting sockets (42), and the top ends of the limiting rods (44) are fixedly connected to the lower surface of the piston plate (43); A drive seat (45) is rotatably connected to the middle portion of the upper surface of the mounting plate (41) via a bearing, and the bottom end of the drive seat (45) extends beyond the lower surface of the mounting plate (41); A transmission gear set (46) has one end screwed to the bottom of the axis of the drive seat (45), and the transmission gear set (46) uses bevel gears at both ends to mesh at 90 degrees; A connecting gear (47) is rotatably connected to the bottom of the mounting plate (41) via a pin shaft, and the axis of the connecting gear (47) is fixedly connected to the other end of the transmission gear set (46); A first connecting seat (48), one end of which is rotatably connected to the inner side of the driving seat (45) via a bearing; A second connecting seat (49) is rotatably connected to the inner side of the other end of the first connecting seat (48) via a bearing A first connecting rod (410), one end of which is rotatably connected to the inner side of the second connecting seat (49) via a pin; The fixing seat (411) is arranged in the middle of the lower surface of the piston plate (43), and the other end of the first connecting rod (410) is rotatably connected to the outer side of the fixing seat (411) via a pin.

3. A self-priming device for horizontal pump end main shaft linkage according to claim 2, characterized in that: The driving seat (45) is in a Z-shape.

4. A self-priming device for horizontal pump end main shaft linkage according to claim 3, characterized in that: The drive seat (45) can be driven by the transmission gear set (46) to rotate, and the drive seat (45) drives one end of the first connecting seat (48) outside itself to rotate eccentrically, thereby causing the first connecting seat (48) to reciprocate up and down.

5. A self-priming device for horizontal pump end main shaft linkage according to claim 4, characterized in that: The linkage assembly (5) comprises: A first mounting frame (51) is arranged on the right side of the lower surface of the mounting plate (41), and a top through hole of the first mounting frame (51) is rotatably connected to the axis of the connecting gear (47) via a bearing; A gear ring (52) is rotatably connected to the left bottom end of the first mounting frame (51) via a bearing, a through hole is provided on the inner side of the axis of the gear ring (52), and the inner cavity of the through hole is sleeved with the outer wall of the connecting shaft (35), and the outer side of the gear ring (52) is meshed with the connecting gear (47); A second mounting frame (53) is provided on the left side of the lower surface of the mounting plate (41); A rotating frame (54) is rotatably connected to the right bottom end of the second mounting frame (53) via a bearing, a through hole is provided on the inner side of the axis of the rotating frame (54), and the inner cavity of the through hole is sleeved with the outer wall of the connecting shaft (35); Driven gears (55), the number of the driven gears (55) is two, the two driven gears (55) are rotatably connected to the front and rear ends of the right side of the rotating frame (54) through pins, and the outer sides of the two driven gears (55) are respectively meshed with the inner side of the gear ring (52); A driving gear (56) is key-connected to the outer wall of the connecting shaft (35), and the outer side of the driving gear (56) is meshed with the driven gears (55) on both sides.

6. A self-priming device for horizontal pump end main shaft linkage according to claim 5, characterized in that: The gear ring (52) is provided with tooth grooves on both the inner and outer sides.

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