Water pump with long service life

Abstract

The utility model discloses a water pump with long service life, which comprises a motor, the motor is connected with a fixed base through a short bolt, an output shaft of the motor is provided with a torsion shaft, the torsion shaft is provided with an eccentric hole used for installing a steel shaft, the steel shaft is movably arranged in the eccentric hole, one end of the steel shaft far away from the torsion shaft is provided with a movable fork shaft, and the fork shaft is provided with an eccentric hole. A gap between the bottom of the torsion shaft and the fork shaft is a vacuum reserved section, a groove is formed in the center of the top of the fork shaft, lubricating oil is arranged in the groove, an air chamber is stacked on the base, the center of the bottom of the air chamber is a protrusion, and the length of the steel shaft is the length of the increased vacuum reserved section. The utility model belongs to the technical field of water pumps, and particularly, the service life of the water pump can be prolonged by increasing the length of a steel shaft, increasing the matching section of a fork shaft and the steel shaft, increasing a convex part as a groove and adding lubricating oil to prevent from colliding with an air chamber part.

Description

Technical Field

[0001] The utility model belongs to the technical field of water pumps, and particularly relates to a water pump with a long service life. Background Technique

[0002] A water pump is a machine that transports liquids or increases the pressure of liquids. It transmits the mechanical energy of the prime mover or other external energy to the liquid, increasing the energy of the liquid. It is mainly used to transport liquids including water, oil, acid-base liquids, emulsions, suspension emulsions, and liquid metals.

[0003] In the prior art, when there is no fluid in the water pump cavity, a pressure difference will be formed when the fluid enters the water pump instantaneously during the operation of the water pump, and it will be in a vacuum state. The pump body will compress upward to drive the fork shaft and the steel shaft, causing the matching section between the steel shaft and the torsion shaft to decrease and the angle to become smaller. For example Figure 2 , resulting in poor effect on the service life of the water pump. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is:

[0005] When the prior art water pump operates without fluid, the pump body will compress upward to drive the fork shaft and the steel shaft, causing the matching section between the steel shaft and the torsion shaft to decrease and the angle to become smaller, resulting in poor service life.

[0006] To solve the above technical problem, the technical solution proposed by the utility model is: a water pump with a long service life, including a motor, a fixed base is connected to the motor through short bolts, a torsion shaft is installed on the output shaft of the motor, an eccentric hole for installing a steel shaft is opened on the torsion shaft, the steel shaft is movably arranged in the eccentric hole, a movable fork shaft is installed at one end of the steel shaft away from the torsion shaft, a vacuum reserved section is arranged between the bottom of the torsion shaft and the fork shaft, a groove is arranged at the center of the top of the fork shaft, lubricating oil is arranged in the groove, an air chamber is built on the base, a protrusion is arranged at the center of the bottom of the air chamber, and the length of the steel shaft is to increase the length of the vacuum reserved section.

[0007] Further, the fork shaft is arranged in a four-blade shape, and slots are arranged on each blade.

[0008] Further, four groups of limit through holes for limiting the position of the pump body are opened on the air chamber, and the pump body penetrates through the limit through holes on the air chamber and is arranged in the slots inside the fork shaft.

[0009] Further, a cover bottom is built on the air chamber, the lower end of the cover bottom presses the pump body, and an inverted small umbrella is installed at the corresponding position of each pump body.

[0010] Further, a water through hole is arranged on the cover bottom, a movable large umbrella is installed at the center of the cover bottom, the small umbrella is installed at the bottom around the cover bottom, and an auxiliary piece is sleeved outside the large umbrella.

[0011] Furthermore, the outer side of the bottom cover is snap-fitted with the top cover. The top cover is fixed to the base by long bolts arranged at the four corners. The long bolts penetrate through the air chamber, the bottom cover and the top cover, and the long bolts are threadedly connected and fixed to the base.

[0012] Furthermore, the top cover is provided with a water inlet nozzle and a water outlet nozzle.

[0013] The beneficial effects achieved by the present utility model with the above structure are as follows:

[0014] By setting the length of the lengthened steel shaft, the matching section of the fork shaft and the steel shaft is increased. Grooves are made at the protruding parts and lubricating oil is added to prevent hitting the air chamber part. This design can extend the service life of the water pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 FIG. 1 is a schematic diagram of the overall structure of a water pump with a long service life proposed by the present utility model;

[0016] Figure 2 FIG. 2 is a schematic diagram of the structural cooperation of the fork shaft, the steel shaft and the torsion shaft of the existing water pump;

[0017] Figure 3 FIG. 3 is a schematic diagram of the fork shaft and the air chamber structure of a water pump with a long service life proposed by the present utility model.

[0018] Wherein, 1, long bolt; 2, top cover; 3, large umbrella; 4, auxiliary piece; 5, bottom cover; 6, small umbrella; 7, pump body; 8, air chamber; 9, fork shaft; 10, steel shaft; 11, torsion shaft; 12, short bolt; 13, base; 14, motor; 15, protrusion; 16, groove; 17, matching end of fork shaft and steel shaft; 18, vacuum reserved section.

[0019] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments; based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] As Figure 1As shown in the figure, a water pump with a long service life proposed by the present utility model includes a motor 14. The motor 14 is connected to a fixed base 13 through a short bolt 12. A torsion shaft 11 is installed on the output shaft of the motor 14. An eccentric hole for installing a steel shaft 10 is provided on the torsion shaft 11. The steel shaft 10 is movably arranged in the eccentric hole. A movable fork shaft 9 is installed at one end of the steel shaft 10 away from the torsion shaft 11. The fork shaft 9 is arranged in a four-blade shape, and each blade is provided with a slot. An air chamber 8 is stacked on the base 13. Four groups of limit through holes for defining the position of the pump body 7 are provided on the air chamber 8. The pump body 7 passes through the limit through holes on the air chamber 8 and is arranged in the slot inside the fork shaft 9. A cover bottom 5 is stacked on the air chamber 8. The lower end of the cover bottom 5 presses the pump body 7, and an inverted small umbrella 6 is installed at the corresponding position of each pump body 7. A water passing hole is provided on the cover bottom 5. A large umbrella 3 is movably installed at the center of the cover bottom 5. The small umbrella 6 is installed at the bottom around the cover bottom 5. An auxiliary piece 4 is sleeved outside the large umbrella 3. An inlet nozzle and an outlet nozzle are provided on the top cover 2. After the motor 14 and the base 13 are fixed and rotated, the torsion shaft 11, the steel shaft 10, and the fork shaft 9 are driven. The air chamber 8 fixedly pushes the pump body 7 to perform a push-pull movement and compression. The fluid enters the top cover 2 from the inlet nozzle. The small umbrella 6 opens and enters the pump body 7. After compression, it enters the cover bottom 5 and pushes the large umbrella 3 open, and flows out from the outlet nozzle of the top cover 2.

[0022] As Figure 2 shown, when there is no fluid in the water pump cavity, a pressure difference will be formed when the fluid enters the water pump instantaneously during the operation of the water pump, and it is in a vacuum state. The pump body 7 will compress upward and drive the fork shaft 9 and the steel shaft 10, so that the gap between the matching section of the steel shaft 10 and the torsion shaft 11, that is, the bottom of the torsion shaft 11 and the fork shaft 9, is a vacuum reserved section 18, and the angle will become smaller. In this case, the effect of the service life of the water pump is not good.

[0023] As Figure 3 shown, in order to increase the service life of the water pump, the length of the steel shaft 10 is increased. The length of the steel shaft 10 is the length after increasing the vacuum reserved section 18. Therefore, the fork shaft and steel shaft matching end 17 is increased, and a groove 16 is added at the center of the top of the fork shaft 9 to add lubricating oil to prevent hitting the protrusion 15 of the air chamber 8.

[0024] To ensure the structural stability, the outer side of the cover bottom 5 is clamped with the top cover 2. The top cover 2 is fixed to the base 13 through long bolts 1 arranged at the four corners. The long bolts 1 pass through the air chamber 8, the cover bottom 5, and the top cover 2, and the long bolts 1 are threadedly connected and fixed to the base 13.

[0025] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0026] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

[0027] The above description of the present invention and its implementation manners is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. In general, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments without creative efforts without departing from the purpose of the present invention, they shall fall within the protection scope of the present invention.

Claims

1. A water pump with a long service life, comprising a motor (14), the motor (14) being connected to a fixed base (13) by means of short bolts (12), a torsion shaft (11) being mounted on the output shaft of the motor (14), an eccentric hole for mounting a steel shaft (10) being provided on the torsion shaft (11), the steel shaft (10) being movably arranged in the eccentric hole, a movable fork shaft (9) being mounted on one end of the steel shaft (10) away from the torsion shaft (11), a gap between the bottom of the torsion shaft (11) and the fork shaft (9) being a vacuum reserved section (18), characterized in that: A groove (16) is arranged at the center of the top of the fork shaft (9), and lubricating oil is arranged in the groove (16). An air chamber (8) is arranged on the base (13), and a protrusion (15) is arranged at the center of the bottom of the air chamber (8). The length of the steel shaft (10) is the length of the vacuum reserved section (18).

2. A water pump with a long service life according to claim 1, characterized in that: The fork shaft (9) is arranged in a four-leaf shape, and each blade is provided with a slot.

3. A water pump with a long service life according to claim 2, characterized in that: The air chamber (8) is provided with four groups of limiting through holes for limiting the position of the pump body (7); the limiting through holes on the air chamber (8) through which the pump body (7) passes are arranged in the slots in the fork shaft (9).

4. A water pump with a long service life according to claim 3, characterized in that: A cover bottom (5) is arranged on the air chamber (8), a pump body (7) is pressed on the lower end of the cover bottom (5), and an inverted small umbrella (6) is installed at a corresponding position of each group of pump bodies (7).

5. A water pump with a long service life according to claim 4, characterized in that: The cover bottom (5) is provided with a water hole, a movably arranged large umbrella (3) is installed at the center of the cover bottom (5), the small umbrella (6) is installed at the bottom of the four sides of the cover bottom (5), and an auxiliary sheet (4) is sleeved on the outer side of the large umbrella (3).

6. A water pump with a long service life according to claim 5, characterized in that: The outer side of the cover bottom (5) is engaged with the top cover (2), and the top cover (2) is fixed to the base (13) by long bolts (1) arranged at four corners, and the long bolts (1) penetrate the air chamber (8), the cover bottom (5) and the top cover (2), and the long bolts (1) and the base (13) are threadedly connected and fixed.

7. A water pump with a long service life according to claim 6, characterized in that: The top cover (2) is provided with a water inlet and a water outlet.

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