Device for preventing liquid injection of liquid adding port of self-priming water pump

Abstract

The utility model discloses a device for preventing a liquid adding opening of a self-priming water pump from spraying liquid, and relates to the technical field of self-priming water pumps. According to the device for preventing the liquid adding opening of the self-priming water pump from spraying liquid, an adjusting screw rod is driven to rotate by rotating an adjusting button, a guide column slides on the inner side of a through hole to guide a lifting block, the lifting block is driven to vertically descend, the lower end of a pressing block is tightly attached to the upper end of a sealing cover, and the sealing cover is pressed and fixed; damping and skid resistance of the lower end of the pressing block are achieved by means of the characteristics that the rubber material of the anti-skid pad is good in elasticity, high in corrosion resistance and good in anti-seismic performance, the pressing block is stressed to slightly slide on the inner side of the damping groove, and the service life of the water pump body is prolonged. And the shock absorption spring buffers the impact on the pressing block, full shock absorption of the pressing block is achieved, the impact of shock on the adjusting lead screw and the mounting plate is reduced, and the pressing stability of the sealing cover is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of self-priming water pumps, in particular to a device for preventing liquid spraying from a liquid filling port of a self-priming water pump. Background Art

[0002] A self-priming water pump needs to be filled with liquid in the pump head before operation, so the pump head will be designed with a liquid filling port and sealed with a cover. Among them, for self-priming water pumps used in situations with highly corrosive liquids, the pump head usually uses materials such as engineering plastics to achieve its corrosion resistance, but this can easily lead to reduced stability in the installation of the sealing cover.

[0003] Existing self-priming water pumps lack a protective structure for the sealing cover, which causes the sealing cover to loosen due to vibration when the equipment is running, causing air to enter the water pump, affecting the normal pumping of the water pump. In severe cases, the sealing cover may even be flushed open, causing corrosive liquid to splash out, causing serious safety hazards and environmental pollution. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a device to prevent liquid from spraying from the liquid filling port of a self-priming water pump, thereby solving the problem that the self-priming water pump lacks a protective structure for the sealing cover, which causes the sealing cover to loosen due to vibration and the like during equipment operation, causing air to enter the water pump, affecting the normal pumping of the water pump, and in severe cases even flushing the sealing cover, causing corrosive liquid to splash out, causing serious safety hazards and environmental pollution.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a device for preventing liquid from spraying from a self-priming water pump filling port, comprising a water pump body, a pump head flange is arranged at the upper end of the water pump body, a sealing cover is arranged at the upper end of the water pump body and located in front of the pump head flange, a mounting plate is arranged at the front end of the pump head flange, an adjustment seat is fixedly installed on the front side of the upper end of the mounting plate, a lifting block is arranged below the adjustment seat, an adjusting screw is arranged at the upper end of the lifting block, a guide column is arranged on the left side of the adjusting screw, a shock-absorbing groove is opened at the lower end of the lifting block, a shock-absorbing spring is arranged on the inner side of the shock-absorbing groove, and a pressure block is arranged at the lower end of the shock-absorbing spring.

[0006] Preferably, the rear end of the mounting plate and the pump head flange are detachably connected by bolts, and the mounting plate is designed in an L-shaped structure. The rear side of the mounting plate is fixedly installed with reinforcing ribs to facilitate the installation and fixation of the adjustment seat and increase the strength of the mounting plate.

[0007] Preferably, the lower end of the adjusting screw rod is rotatably connected to the upper end of the lifting block, the upper end of the adjusting screw rod extends to the upper end of the adjusting seat and an adjusting button is fixedly installed thereon, and the surface of the adjusting screw rod is threadedly connected to the adjusting seat, so as to facilitate the control of the rotation of the adjusting screw rod to drive the lifting block to rise and fall.

[0008] Preferably, the guide column and the adjusting screw are arranged in parallel, the lower end of the guide column and the side of the lifting block are fixedly connected by a connecting plate, the upper end of the guide column extends through a through hole to the upper end of the adjusting seat where a limiting plate is fixedly installed, and the guide column and the inner side of the through hole are slidably connected to facilitate guiding and limiting the lifting block.

[0009] Preferably, the upper end of the shock-absorbing spring is fixedly connected to the inner side of the shock-absorbing groove, the lower end of the shock-absorbing spring is fixedly connected to the upper end of the pressure block, and the upper end of the pressure block is slidably sleeved to the inner side of the shock-absorbing groove, so as to facilitate buffering of vibrations exerted on the pressure block.

[0010] Preferably, the lower end of the pressing block is designed as a circular structure and is fixedly installed with an anti-skid pad. The lower end of the anti-skid pad and the upper end of the sealing cover are adapted to each other and fit tightly. The anti-skid pad is made of rubber material to achieve compression and shock absorption of the sealing cover, thereby improving the anti-skid, shock-resistant and corrosion-resistant properties of the lower end of the pressing block.

[0011] Beneficial Effects

[0012] The utility model provides a device to prevent liquid from being sprayed from the liquid filling port of a self-priming water pump. Compared with the prior art, it has the following beneficial effects:

[0013] 1. The device for preventing liquid from spraying from the filling port of a self-priming water pump comprises a water pump body, a pump head flange, a sealing cover, a mounting plate, reinforcing ribs, an adjusting seat, a through hole, a lifting block, an adjusting screw rod, an adjusting button, a guide column and a pressing block. The rear end of the mounting plate is fixedly connected to the pump head flange by bolts to support and fix the adjusting seat. The reinforcing ribs improve the overall strength and impact resistance of the mounting plate. The adjusting screw rod is driven to rotate by rotating the adjusting button. The guide column slides inside the through hole to guide the lifting block, driving the lifting block to descend vertically, so that the lower end of the pressing block is tightly fitted with the upper end of the sealing cover, thereby pressing and fixing the sealing cover, and preventing the sealing cover from loosening and causing corrosive liquid to splash out, affecting the normal operation of the water pump body, and causing serious safety hazards and environmental pollution.

[0014] 2. The device for preventing liquid from spraying from the filling port of a self-priming water pump is provided with a shock-absorbing groove, a shock-absorbing spring, a pressure block and an anti-skid pad. The vibration generated by the sealing cover during the operation of the water pump body is transmitted from the upper end of the sealing cover to the anti-skid pad. The rubber material of the anti-skid pad has good elasticity, strong corrosion resistance and good shock resistance, so as to achieve shock absorption and anti-skid of the lower end of the pressure block. The pressure block is subjected to force to produce slight sliding on the inner side of the shock-absorbing groove, and the shock-absorbing spring buffers the impact on the pressure block, thereby achieving full shock absorption of the pressure block, reducing the impact of the vibration on the adjusting screw rod and the mounting plate, and increasing the stability of the sealing cover compression. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of the mounting plate, lifting block and pressing block of the utility model;

[0017] Figure 3 It is a right half-section structural schematic diagram of the mounting plate, lifting block and pressing block of the utility model.

[0018] In the figure: 1. Water pump body; 2. Pump head flange; 3. Sealing cover; 4. Mounting plate; 41. Reinforcing ribs; 5. Adjusting seat; 51. Through hole; 6. Lifting block; 7. Adjusting screw rod; 71. Adjusting button; 8. Guide column; 81. Limiting plate; 9. Shock-absorbing groove; 10. Shock-absorbing spring; 11. Pressure block; 111. Anti-slip pad. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3 The utility model provides a technical solution: a device for preventing liquid from spraying from a liquid filling port of a self-priming water pump, comprising a water pump body 1, a pump head flange 2 is arranged at the upper end of the water pump body 1, a sealing cover 3 is arranged at the upper end of the water pump body 1 and located in front of the pump head flange 2, a mounting plate 4 is arranged at the front end of the pump head flange 2, a rear end of the mounting plate 4 and the pump head flange 2 are detachably connected by bolts, the mounting plate 4 is designed in an L-shaped structure, a reinforcing rib 41 is fixedly installed on the rear side of the mounting plate 4, after the sealing cover 3 is installed, the rear end of the mounting plate 4 is fixedly connected to the pump head flange 2 by using bolts, so as to support and fix the adjusting seat 5, and the reinforcing rib 41 improves the overall strength and impact resistance of the mounting plate 4;

[0021] An adjusting seat 5 is fixedly installed on the front side of the upper end of the mounting plate 4, a lifting block 6 is arranged below the adjusting seat 5, an adjusting screw rod 7 is arranged on the upper end of the lifting block 6, a shock absorbing groove 9 is opened at the lower end of the lifting block 6, a shock absorbing spring 10 is arranged inside the shock absorbing groove 9, a pressing block 11 is arranged at the lower end of the shock absorbing spring 10, the lower end of the adjusting screw rod 7 is rotatably connected to the upper end of the lifting block 6, the upper end of the adjusting screw rod 7 extends to the upper end of the adjusting seat 5 and an adjusting button 71 is fixedly installed, the surface of the adjusting screw rod 7 is threadedly connected to the adjusting seat 5, and a guide column is arranged on the left side of the adjusting screw rod 7 8, the guide column 8 and the adjusting screw rod 7 are arranged in parallel, the lower end of the guide column 8 and the side of the lifting block 6 are fixedly connected through the connecting plate, the upper end of the guide column 8 extends through the through hole 51 to the upper end of the adjusting seat 5 and is fixedly installed with a limit plate 81, the guide column 8 and the inner side of the through hole 51 are slidably connected, and the adjusting screw rod 7 is driven to rotate by rotating the adjusting knob 71, the guide column 8 slides inside the through hole 51 to guide the lifting block 6, and drives the lifting block 6 to descend vertically, so that the lower end of the pressing block 11 is tightly fitted with the upper end of the sealing cover 3, so as to realize the pressing and fixing of the sealing cover 3;

[0022] The upper end of the shock absorbing spring 10 is fixedly connected to the inner side of the shock absorbing groove 9, the lower end of the shock absorbing spring 10 is fixedly connected to the upper end of the pressure block 11, the upper end of the pressure block 11 is slidably sleeved with the inner side of the shock absorbing groove 9, the lower end of the pressure block 11 is designed in a circular structure, and a non-slip pad 111 is fixedly installed, the lower end of the non-slip pad 111 and the upper end of the sealing cover 3 are adapted to each other and fit tightly, the non-slip pad 111 is made of rubber material, and the vibration generated by the sealing cover 3 during the operation of the water pump body 1 is absorbed from the sealing cover 3. The upper end of the sealing cover 3 is transmitted to the anti-skid pad 111, and the rubber material of the anti-skid pad 111 has good elasticity, strong corrosion resistance, and good shock resistance to achieve shock absorption and anti-skid of the lower end of the pressure block 11. The pressure block 11 is subjected to force to produce a slight sliding inside the shock absorbing groove 9, and the shock absorbing spring 10 buffers the impact on the pressure block 11, thereby achieving sufficient shock absorption of the pressure block 11, reducing the impact of vibration on the adjusting screw 7 and the mounting plate 4, and increasing the stability of the compression of the sealing cover 3.

[0023] During use, after the sealing cover 3 is installed, the rear end of the mounting plate 4 is fixedly connected to the pump head flange 2 by using bolts to support and fix the adjustment seat 5. The reinforcing rib 41 improves the overall strength and impact resistance of the mounting plate 4. The adjusting screw 7 is driven to rotate by turning the adjusting knob 71, and the guide column 8 slides inside the through hole 51 to guide the lifting block 6, driving the lifting block 6 to descend vertically, so that the lower end of the pressing block 11 is tightly fitted with the upper end of the sealing cover 3, so as to achieve the compression and fixation of the sealing cover 3, and avoid the sealing cover 3 loosening to cause corrosive liquid to splash out and affect the normal operation of the water pump body 1, causing serious safety hazards and environmental pollution problems. During the operation of the water pump body 1 The vibration generated by the sealing cover 3 is transmitted to the anti-skid pad 111 from the upper end of the sealing cover 3. The rubber material of the anti-skid pad 111 has good elasticity, strong corrosion resistance and good shock resistance to achieve shock absorption and anti-skid of the lower end of the pressure block 11. The pressure block 11 is subjected to force to produce a slight sliding inside the shock absorbing groove 9. The shock absorbing spring 10 buffers the impact on the pressure block 11, thereby achieving sufficient shock absorption of the pressure block 11 and reducing the impact of the vibration on the adjusting screw 7 and the mounting plate 4, thereby increasing the stability of the sealing cover 3. When the sealing cover 3 needs to be disassembled and assembled later, the adjusting knob 71 is turned to make the adjusting screw 7 drive the lifting block 6 to rise, so that the pressure block 11 can be separated from the sealing cover 3, thereby facilitating the disassembly and assembly of the sealing cover 3.

[0024] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0025] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for preventing liquid from spraying out of a liquid filling port of a self-priming water pump, comprising a water pump body (1), characterized in that: A pump head flange (2) is arranged at the upper end of the water pump body (1); a sealing cover (3) is arranged at the upper end of the water pump body (1) and located in front of the pump head flange (2); a mounting plate (4) is arranged at the front end of the pump head flange (2); an adjustment seat (5) is fixedly mounted on the front side of the upper end of the mounting plate (4); a lifting block (6) is arranged below the adjustment seat (5); an adjusting screw rod (7) is arranged at the upper end of the lifting block (6); a guide column (8) is arranged on the left side of the adjusting screw rod (7); a shock absorbing groove (9) is provided at the lower end of the lifting block (6); a shock absorbing spring (10) is arranged inside the shock absorbing groove (9); and a pressure block (11) is arranged at the lower end of the shock absorbing spring (10).

2. A device for preventing liquid from spraying from a self-priming water pump filling port according to claim 1, characterized in that: The rear end of the mounting plate (4) and the pump head flange (2) are detachably connected via bolts; the mounting plate (4) is designed to be L-shaped; and a reinforcing rib (41) is fixedly mounted on the rear side of the mounting plate (4).

3. A device for preventing liquid from spraying from a self-priming water pump filling port according to claim 1, characterized in that: The lower end of the adjusting screw rod (7) is rotatably connected to the upper end of the lifting block (6); the upper end of the adjusting screw rod (7) extends to the upper end of the adjusting seat (5) where an adjusting button (71) is fixedly mounted; and the surface of the adjusting screw rod (7) is threadedly connected to the adjusting seat (5).

4. A device for preventing liquid from spraying from a self-priming water pump filling port according to claim 1, characterized in that: The guide column (8) and the adjusting screw rod (7) are arranged in parallel, the lower end of the guide column (8) is fixedly connected to the side of the lifting block (6) through a connecting plate, the upper end of the guide column (8) extends through a through hole (51) to the upper end of the adjusting seat (5) where a limit plate (81) is fixedly installed, and the guide column (8) is slidably connected to the inner side of the through hole (51).

5. The device for preventing liquid from spraying from the liquid filling port of a self-priming water pump according to claim 1, characterized in that: The upper end of the shock absorbing spring (10) is fixedly connected to the inner side of the shock absorbing groove (9), the lower end of the shock absorbing spring (10) is fixedly connected to the upper end of the pressure block (11), and the upper end of the pressure block (11) is slidably sleeved to the inner side of the shock absorbing groove (9).

6. A device for preventing liquid from spraying from a self-priming water pump filling port according to claim 1, characterized in that: The lower end of the pressing block (11) is designed as a circular structure and is fixedly provided with an anti-skid pad (111). The lower end of the anti-skid pad (111) and the upper end of the sealing cover (3) are adapted to each other and fit tightly. The anti-skid pad (111) is made of rubber.

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