A dustproof water pump

Abstract

The utility model discloses a kind of dustproof water pumps of shell, comprising: pump shell, dustproof component;Pump shell includes the front shell and rear shell of its front and rear end.The utility model said a kind of dustproof water pumps of shell, the rear shell of pump shell rear end is equipped with sealing cylinder between rear shell and drive shaft, can pass its inside and outside multiple groups of first sealing ring and second sealing ring, multiple layers of sealing and the connection between rear shell and drive shaft, to improve the sealing property of rear shell rear end, simultaneously, inside and outside compression inside sealing pad and outer sealing pad between front shell and rear shell, double-layer sealing between the front shell and rear shell on pump shell can also be carried out, and then pass multiple sealing structures between pump shell shell and drive shaft, to effectively block dust from outside into pump shell, and the first sealing ring and second sealing ring of inside and outside of sealing cylinder between rear shell and drive shaft, and inside sealing pad and outer sealing pad between front shell and rear shell, can be conveniently disassembled and adjusted.

Description

Technical Field

[0001] This utility model relates to the field of water pump technology, specifically a water pump with a dustproof casing. Background Technology

[0002] A water pump is a machine that transports or pressurizes liquids. It transfers the mechanical energy of a prime mover or other external energy to the liquid, increasing the liquid's energy. It is mainly used to transport liquids including water, oil, acid and alkali solutions, emulsions, suspensions, and liquid metals. It can also transport liquid-gas mixtures and liquids containing suspended solids.

[0003] Existing pump housings, such as the one disclosed in publication number CN222391628U, have the advantage of improving the support strength of the pump after assembly. However, the connection between the front and rear ends of the pump housing, as well as the connection between the rear end of the pump housing and the input shaft, do not have multi-layer seals, resulting in poor dustproof performance. Therefore, we propose a dustproof pump housing. Utility Model Content

[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, the technical solution adopted by this utility model is as follows: A dustproof water pump includes: a pump casing and a dustproof assembly; the pump casing includes a front casing and a rear casing, a drive shaft movably installed inside the rear casing, and an impeller fixedly installed at the front end of the drive shaft by fastening screws; the dustproof assembly includes a sealing cylinder movably installed inside the rear casing, bearings fixedly installed at both the front and rear ends inside the sealing cylinder, first sealing rings movably installed at the inner ends of the bearings, multiple sets of sealing ports arranged at the outer end of the sealing cylinder, second sealing rings movably installed in the sealing ports, and inner and outer sealing gaskets movably installed on the inner and outer sides of the rear end of the rear casing, respectively.

[0006] Preferably, a clamping edge is also fixedly installed on the upper end of the rear housing.

[0007] Preferably, a fixing ring is fixedly installed on both sides of the inner end of the bearing, and the first sealing ring is installed between the fixing rings.

[0008] Preferably, the rear end of the rear housing is provided with a positioning groove, and the upper end of the sealing cylinder is fixedly installed with a positioning key, and the positioning key matches the positioning groove.

[0009] Preferably, both the rear housing and the sealing cylinder are provided with multiple sets of first mounting holes, and each of the first mounting holes is movably installed with a first screw.

[0010] Preferably, the front housing, the inner sealing gasket, and the rear housing are each provided with a second mounting hole, and a second screw is movably installed in each of the second mounting holes.

[0011] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows: 1. In this utility model, a sealing cylinder is installed between the rear housing at the rear end of the pump casing and the drive shaft. Multiple sets of first and second sealing rings on its inner and outer sides can provide multi-layer sealing between the connection between the rear housing and the drive shaft, thereby improving the sealing performance of the rear end of the rear housing. At the same time, the inner and outer sealing gaskets pressed between the front and rear housings can also provide a double-layer seal between the front and rear housings of the pump casing. Thus, through the multiple sealing structures between the pump casings and the drive shaft, external dust can be effectively prevented from entering the pump casing. 2. In this utility model, the first and second sealing rings on the inner and outer sides of the sealing cylinder between the rear housing and the drive shaft, as well as the inner and outer sealing gaskets between the front and rear housings, can be easily disassembled and adjusted. This allows for convenient replacement and adjustment after damage caused by aging, wear, or other reasons, ensuring dustproof performance during use. Attached Figure Description

[0012] Figure 1 This is an overall structural diagram of the present invention; Figure 2 This is another perspective view of the present invention; Figure 3 This is a side sectional view of the present invention; Figure 4 This is an exploded view of the rear casing of this utility model; Figure 5 This utility model Figure 3 Enlarged view of A in the middle; Figure 6 This utility model Figure 3 Enlarged view of B in the middle; Figure 7 This utility model Figure 3 A magnified view of C.

[0013] Figure label: 100. Pump casing; 101. Front casing; 102. Rear casing; 103. Drive shaft; 104. Fastening screws; 105. Impeller; 200. Dustproof component; 201. Sealing cylinder; 202. Bearing; 203. First sealing ring; 204. Sealing port; 205. Second sealing ring; 206. Inner sealing gasket; 207. Outer sealing gasket; 208. Pressing edge; 209. Retaining ring; 210. Positioning groove; 211. Positioning key; 212. First mounting hole; 213. First screw; 214. Second mounting hole; 215. Second screw. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0015] The following describes some embodiments of the present invention with reference to the accompanying drawings, providing a dustproof water pump. Example

[0016] Combination Figure 1-7 As shown, the present invention provides a dustproof water pump, comprising: a pump housing 100 and a dustproof assembly 200; the pump housing 100 includes a front housing 101 and a rear housing 102, a drive shaft 103 movably installed inside the rear housing 102, and an impeller 105 fixedly installed at the front end of the drive shaft 103 by fastening screws 104; the dustproof assembly 200 includes a sealing cylinder 201 movably installed inside the rear housing 102, bearings 202 fixedly installed at both the front and rear ends inside the sealing cylinder 201, first sealing rings 203 movably installed at the inner ends of the bearings 202, multiple sets of sealing ports 204 arranged at the outer end of the sealing cylinder 201, second sealing rings 205 movably installed in each of the sealing ports 204, and inner sealing gaskets 206 movably installed on the inner and outer sides of the rear end of the rear housing 102. In addition to the outer sealing gasket 207, a clamping edge 208 is also fixedly installed on the upper end of the rear housing 102. A retaining ring 209 is fixedly installed on both sides of the inner end of the bearing 202, and the first sealing ring 203 is installed between the retaining rings 209. A positioning groove 210 is also opened at the rear end of the rear housing 102. A positioning key 211 is fixedly installed on the upper end of the sealing cylinder 201, and the positioning key 211 matches the positioning groove 210. Multiple sets of first mounting holes 212 are also opened in the rear housing 102 and the sealing cylinder 201, and a first screw 213 is movably installed in each of the first mounting holes 212. A second mounting hole 214 is also opened in each of the front housing 101, the inner sealing gasket 206 and the rear housing 102, and a second screw 215 is movably installed in each of the second mounting holes 214.

[0017] Specifically, a water pump is a machine that transports or pressurizes liquids. The pump casing 100 is the housing at the front end of the pump used to mount the impeller 105 and the drive shaft 103. A sealing cylinder 201 is installed between the rear casing 102 at the rear end of the pump casing 100 and the drive shaft 103. Multiple sets of first sealing rings 203 and second sealing rings 205 on its inner and outer sides provide multi-layer sealing between the rear casing 102 and the drive shaft 103, thereby improving the sealing performance of the rear end of the rear casing 102. Simultaneously, the inner sealing gasket 206 and the outer sealing gasket 207, which are pressed tightly between the front casing 101 and the rear casing 102, also provide sealing. The pump housing 100 features a double-layer seal between the front housing 101 and the rear housing 102. Furthermore, the multiple sealing structures between the upper housings of the pump housing 100 and the drive shaft 103 effectively prevent external dust from entering the pump housing 100. The first sealing ring 203 and the second sealing ring 205 on the inner and outer sides of the sealing cylinder 201 between the rear housing 102 and the drive shaft 103, as well as the inner sealing gasket 206 and the outer sealing gasket 207 between the front housing 101 and the rear housing 102, can all be easily disassembled and adjusted. This allows for convenient installation and removal of the first sealing ring 203, the second sealing ring 205, the inner sealing gasket 206, and the outer sealing gasket. The gasket 207 can be easily replaced and adjusted after damage due to aging or wear to ensure dustproof performance during use. The clamping edge 208 at the upper end of the rear housing 102 is mainly used to clamp the outer gasket 207 after installation. The retaining rings 209 fixedly installed on both sides of the inner end of the bearing 202 are mainly used to block and restrain the first sealing ring 203 in the middle of the inner end of the bearing 202 after installation, thereby preventing the first sealing ring 203 from detaching. At the same time, the first sealing ring 203 can also rotate with the drive shaft 103 through the rotation of the bearing 202, thereby ensuring that the first sealing ring 203 is in contact with the drive shaft after installation. To ensure a tight connection between 103 and prevent rapid wear, the positioning groove 210 at the rear end of the rear housing 102 and the positioning key 211 fixedly installed on the upper end of the sealing cylinder 201 are mainly used for positioning and installing the sealing cylinder 201 inside the rear housing 102, so as to make precise and stable fixation by the first screw 213. The second screw 215 installed between the rear housing 102 and the front housing 101 can be used to fix the rear housing 102 and the front housing 101, and can also press the inner sealing gasket 206 and the outer sealing gasket 207 between the rear housing 102 and the front housing 101 after fixation.

[0018] Working principle and usage process of this utility model: After the front housing 101 and the rear housing 102 of the pump housing 100 are fastened together by the second screw 215, the inner sealing gasket 206 and the outer sealing gasket 207 pressed between the inner and outer ends of the front housing 101 and the rear housing 102 can ensure a double-layer seal between the front housing 101 and the rear housing 102. The sealing cylinder 201, which is fastened to the drive shaft 103 inside the rear housing 102, can also ensure a seal between the inner and outer sides of the drive shaft 103 and the rear housing 102 by multiple sets of first sealing rings 203 and second sealing rings 205 arranged at its inner and outer ends. The multi-layer seal, through the double-layer sealing structure between the front housing 101 and the rear housing 102 on the pump housing 100, and the multi-layer sealing structure between the rear housing 102 and the drive shaft 103, jointly improves the sealing and dustproof effect of the pump housing 100 during use. At the same time, the inner sealing gasket 206 and the outer sealing gasket 207 between the front housing 101 and the rear housing 102, as well as the first sealing ring 203 and the second sealing ring 205 on the inner and outer sides of the sealing cylinder 201, can be easily disassembled, inspected and maintained to ensure the sealing performance of the pump housing 100 during use.

[0019] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A dust-proof water pump of a casing characterized by, include: Pump housing (100), dustproof assembly (200); The pump casing (100) includes a front casing (101) and a rear casing (102) at its front and rear ends, a drive shaft (103) movably installed inside the rear casing (102), and an impeller (105) fixedly installed at the front end of the drive shaft (103) by fastening screws (104). The dustproof assembly (200) includes a sealing cylinder (201) movably installed inside the rear housing (102), a bearing (202) fixedly installed at both the front and rear ends inside the sealing cylinder (201), a first sealing ring (203) movably installed at the inner end of the bearing (202), multiple sets of sealing ports (204) arranged at the outer end of the sealing cylinder (201), a second sealing ring (205) movably installed inside the sealing port (204), and an inner sealing gasket (206) and an outer sealing gasket (207) movably installed on the inner and outer sides of the rear end of the rear housing (102).

2. A dust-proof water pump according to claim 1, wherein A clamping edge (208) is also fixedly installed on the upper end of the rear housing (102).

3. The dust-tight water pump according to claim 1, wherein The bearing (202) is also fixedly installed on both sides of its inner end with a retaining ring (209) and the first sealing ring (203) is installed between the retaining rings (209).

4. A water pump with a dustproof casing according to claim 1, characterized in that, The rear end of the rear housing (102) is also provided with a positioning groove (210), and the upper end of the sealing cylinder (201) is also fixedly installed with a positioning key (211), and the positioning key (211) matches the positioning groove (210).

5. A water pump with a dustproof casing according to claim 1, characterized in that, The rear housing (102) and the sealing cylinder (201) are each provided with a number of first mounting holes (212), and each of the first mounting holes (212) is provided with a first screw (213).

6. A water pump with a dustproof casing according to claim 1, characterized in that, The front housing (101), the inner sealing gasket (206) and the rear housing (102) are each provided with a second mounting hole (214), and a second screw (215) is movably installed in the second mounting hole (214).

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