A high-efficiency split front cover for a large-caliber self-priming sewage pump

Abstract

The present invention is applicable to the technical field related to self-priming sewage pumps, and provides a high-efficiency split front cover for a large-caliber self-priming sewage pump, including a front end cover, the side of the front end cover is fixedly connected to the rear end cover by a plurality of connecting columns, the front end cover and the rear end cover are arranged in a water storage chamber of the pump body, the rear end cover is connected to the pump body by a bolt assembly, a friction plate is arranged in the pump body, an impeller is arranged in the pump body, a gap is arranged between the friction plate and the impeller, the centers of the front end cover and the rear end cover are both through-hole structures, and the rear end cover is connected to a dirt hole cover by a first connecting unit. When the present invention is to perform a dirt removal operation on the water storage chamber in the pump body, the dirt hole cover can be removed from the rear end cover by setting the first connecting unit, thereby ensuring that the performance of the water pump after dirt removal can be maintained in the best state when leaving the factory, and ensuring the maximum efficiency of the water pump; in addition, because there is no need to take the whole out of the water storage chamber, the labor intensity of the dirt removal work is reduced and the dirt removal time is shortened.

Description

Technical Field

[0001] The invention belongs to the technical field related to self-priming sewage pumps, and in particular relates to a high-efficiency split front cover for a large-caliber self-priming sewage pump. Background Art

[0002] Working principle of self-priming sewage pump: sewage flows from the water inlet of the pump body, passes through the water inlet chamber downward, and then enters the water storage chamber. Then the pump rotor components and impeller discharge the sewage through the water outlet above the pump body. When the current self-priming sewage pump is used, the combination bolts that connect the front cover and rear cover with the outer end surface of the pump body water storage tank can be adjusted to make the front cover as a whole move forward and backward. The gap between the friction plate at the front end of the front cover and the impeller blades will change. When it reaches the best state, it is locked by the combination bolts and combined with the attached Figure 1 The prior art self-priming sewage pump also needs to loosen the fastening bolts fixing the rear end plate of the front cover, remove the front end plate of the front cover as a whole, and then clean the dirt in the water storage cavity of the pump body. However, the prior art self-priming sewage pump has shortcomings when used. It is difficult for the cleaning personnel to restore the gap between the friction plate and the impeller to the optimal state since leaving the factory after cleaning, or they do not adjust the gap, resulting in an excessively large gap, which causes a decrease in the efficiency of the self-priming sewage pump after cleaning, and a decrease in social benefits.

[0003] Based on this, a high-efficiency split front cover for a large-caliber self-priming sewage pump is now proposed, which can solve the above-mentioned problems. Summary of the invention

[0004] The present invention provides a high-efficiency split front cover for a large-caliber self-priming sewage pump, aiming to solve the problem that the self-priming sewage pump in the prior art also needs to loosen the fastening bolts fixing the rear end plate of the front cover, take out the front end plate of the front cover as a whole, and then clean the dirt in the water storage cavity of the pump body. However, the existing self-priming sewage pump has shortcomings when used. It is difficult for the cleaning personnel to restore the gap between the friction plate and the impeller to the optimal state since leaving the factory after cleaning, or they do not adjust the gap, resulting in an excessively large gap, which causes a decrease in the efficiency of the self-priming sewage pump after cleaning, and reduces the social benefits.

[0005] The present invention is implemented as follows: a high-efficiency split front cover for a large-caliber self-priming sewage pump includes a front end cover, the side of the front end cover is fixedly connected to the rear end cover by a plurality of connecting columns, the front end cover and the rear end cover are arranged in a water storage cavity of the pump body, the rear end cover is connected to the pump body by a bolt assembly, a friction plate is arranged in the pump body, an impeller is arranged in the pump body, a gap is arranged between the friction plate and the impeller, the centers of the front end cover and the rear end cover are both through hole structures, and the rear end cover is connected to a sewage hole cover through a first connecting unit.

[0006] Preferably, the water storage chamber is arranged at the lower end of the pump body, a water inlet is also arranged on the pump body, a water inlet chamber is arranged in the pump body, and a drainage chamber is also arranged in the pump body.

[0007] Preferably, a first sealing ring is provided between the front end cover and the pump body, a second sealing ring is provided between the rear end cover and the pump body, and a third sealing ring is provided between the dirt hole cover and the pump body.

[0008] Preferably, the dirt hole cover is provided with two symmetrically arranged handles connected via a first bolt.

[0009] Preferably, the first connection unit includes a plurality of first connection holes distributed in a circumferential array on the rear end cover, and the sewage hole cover is provided with a plurality of second connection holes distributed in a circumferential array and cooperating with the plurality of first connection holes, and the sewage hole cover and the rear end cover are connected by second bolts passing through the first connection holes and the second connection holes.

[0010] Preferably, the rear end cover and the plurality of connecting columns are further connected via a second connecting unit.

[0011] Preferably, the second connecting unit includes a plurality of first connecting rods fixedly connected to the dirt hole cover, the rear end cover is provided with a first clamping groove that penetrates into the connecting column, the side of the first clamping groove is provided with a second clamping groove, a pushing block is slidably connected in the second clamping groove, the side of the pushing block is connected to the second clamping groove by a spring for providing elastic force, the side of the pushing block is fixedly connected with an elastic clamping protrusion, and the side of the first connecting rod is provided with a third clamping groove that cooperates with the elastic clamping protrusion.

[0012] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0013] 1. When the water storage chamber in the pump body needs to be decontaminated, the dirt hole cover can be removed from the rear end cover through the setting of the first connecting unit, which will not affect the gap between the friction plate and the impeller, thereby ensuring that the performance of the water pump after decontamination can be maintained in the best state when leaving the factory, and ensuring the maximum efficiency of the water pump; in addition, because there is no need to remove the entirety from the water storage chamber, and the dirt hole cover is small in size and light in weight, and the removal time is short, the labor intensity of the decontamination work is reduced, the decontamination time is shortened, and manpower and material resources are saved.

[0014] 2. When installing the sewage hole cover, insert the first connecting rod into the first clamping groove. As the first connecting rod goes deeper, the pushing block is pushed to move in the second clamping groove, the spring is compressed, and the elastic clamping protrusion connected to the pushing block is clamped into the third clamping groove. At this time, the sewage hole cover can be connected to the rear end cover through the second bolt. When removing the sewage hole cover, first remove the second bolt, and then the sewage hole cover automatically falls off from the rear end cover under the action of the spring. At this time, the sewage hole cover can be easily removed by pulling the handle for sewage removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a self-priming sewage pump in the prior art;

[0016] Figure 2 It is a schematic diagram of the overall structure of a high-efficiency split front cover for a large-caliber self-priming sewage pump provided by the present invention;

[0017] Figure 3 yes Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0018] Figure 4 yes Figure 2 A schematic diagram of the enlarged structure at B in the middle;

[0019] Figure 5 It is a structural schematic diagram of a front end cover, a connecting column and a rear end cover in a high-efficiency split front cover for a large-caliber self-priming sewage pump provided by the present invention;

[0020] Figure 6 It is a structural schematic diagram of a high-efficiency split front cover, middle and rear end cover for a large-caliber self-priming sewage pump provided by the present invention;

[0021] Figure 7 It is a structural schematic diagram of a high-efficiency split-type sewage hole cover in a front cover for a large-caliber self-priming sewage pump provided by the present invention;

[0022] Figure 8 It is a structural schematic diagram of a second connection unit in a high-efficiency split front cover for a large-caliber self-priming sewage pump provided by the present invention;

[0023] Fig. 9 This is a schematic diagram of the structure of a high-efficiency split front cover pump body for a large-caliber self-priming sewage pump provided by the present invention. Figure 1 ;

[0024] Fig.10 This is a schematic diagram of the structure of a high-efficiency split front cover pump body for a large-caliber self-priming sewage pump provided by the present invention. Figure 2 .

[0025] Notes on the figure numbers: 1. front cover; 2. connecting column; 3. rear cover; 4. pump body; 5. water storage chamber; 6. friction plate; 7. impeller; 8. gap; 9. sewage hole cover; 10. water inlet; 11. water inlet chamber; 12. drainage chamber; 13. first sealing ring; 14. second sealing ring; 15. third sealing ring; 16. first bolt; 17. handle; 181. first connecting hole; 182. second connecting hole; 183. second bolt; 191. first connecting rod; 192. first clamping groove; 193. second clamping groove; 194. push block; 195. spring; 196. elastic clamping protrusion; 197. third clamping groove. DETAILED DESCRIPTION

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0027] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0028] Example 1

[0029] The embodiment of the present invention provides a high-efficiency split front cover for a large-caliber self-priming sewage pump, such as Figure 1-Figure 10 As shown, it includes a front cover 1, the side of the front cover 1 is fixedly connected to the rear cover 3 through a plurality of connecting columns 2, the front cover 1 and the rear cover 3 are arranged in a water storage cavity 5 of a pump body 4, the rear cover 3 is connected to the pump body 4 through a bolt assembly, a friction plate 6 is arranged in the pump body 4, an impeller 7 is arranged in the pump body 4, a gap 8 is arranged between the friction plate 6 and the impeller 7, and the whole formed by the front cover 1 and the rear cover 3 can be fine-tuned forward and backward by adjusting the bolt assembly, and the gap 8 between the friction plate 6 and the impeller 7 can be adjusted to ensure the performance parameters of the self-priming sewage pump;

[0030] The centers of the front cover 1 and the rear cover 3 are both through-hole structures, and the rear cover 3 is connected to the dirt hole cover 9 through a first connecting unit.

[0031] The water storage chamber 5 is arranged at the lower end of the pump body 4 . The pump body 4 is also provided with a water inlet 10 . The pump body 4 is provided with a water inlet chamber 11 . The pump body 4 is also provided with a drainage chamber 12 .

[0032] A first sealing ring 13 is provided between the front end cover 1 and the pump body 4 , a second sealing ring 14 is provided between the rear end cover 3 and the pump body 4 , and a third sealing ring 15 is provided between the dirt hole cover 9 and the pump body 4 .

[0033] The dirt hole cover 9 is connected to two symmetrically arranged handles 17 via a first bolt 16 .

[0034] When the above device is actually used, when the water storage chamber 5 in the pump body 4 needs to be decontaminated, the dirt hole cover 9 can be removed from the rear end cover 3 through the setting of the first connecting unit, which will not affect the gap 8 between the friction plate 6 and the impeller 7, thereby ensuring that the performance of the water pump after decontamination can be maintained in the best state when leaving the factory, and ensuring the maximum efficiency of the water pump; in addition, because there is no need to remove the entirety from the water storage chamber 5, and the dirt hole cover 9 is small in size and light in weight, and the removal time is short, the labor intensity of the decontamination work is reduced, the decontamination time is shortened, and manpower and material resources are saved.

[0035] Example 2

[0036] Combination Figure 6 and Figure 7 In this embodiment, based on the first embodiment, the first connection unit includes a plurality of first connection holes 181 distributed in a circumferential array on the rear end cover 3, and the sewage hole cover 9 is provided with a plurality of second connection holes 182 distributed in a circumferential array and cooperating with the plurality of first connection holes 181. The sewage hole cover 9 and the rear end cover 3 are connected by second bolts 183 passing through the first connection holes 181 and the second connection holes 182.

[0037] When the first connecting unit is actually used, the second bolt 183 passing through the first connecting hole 181 and the second connecting hole 182 is used to connect the dirt hole cover 9 and the rear end cover 3 .

[0038] Example 3

[0039] Combination Figure 8 In order to conveniently install and remove the sewage hole cover 9, in this embodiment, based on embodiment 2, the rear end cover 3 and the plurality of connecting columns 2 are further connected via a second connecting unit.

[0040] The second connecting unit includes a plurality of first connecting rods 191 fixedly connected to the dirt hole cover 9, a first snap-in groove 192 penetrating into the connecting column 2 is provided on the rear end cover 3, a second snap-in groove 193 is provided on the side of the first snap-in groove 192, a pushing block 194 is slidably connected in the second snap-in groove 193, the side of the pushing block 194 is connected to the second snap-in groove 193 by a spring 195 for providing elastic force, an elastic snap-in protrusion 196 is fixedly connected to the side of the pushing block 194, and a third snap-in groove 197 cooperating with the elastic snap-in protrusion 196 is provided on the side of the first connecting rod 191.

[0041] When the above-mentioned second connecting unit is actually used, when installing the sewage hole cover 9, the first connecting rod 191 is inserted into the first clamping groove 192. As the first connecting rod 191 goes deeper, the pushing block 194 is pushed to move in the second clamping groove 193, the spring 195 is compressed, and the elastic clamping protrusion 196 connected to the pushing block 194 is clamped into the third clamping groove 197. At this time, the sewage hole cover 9 can be connected to the rear end cover 3 by the second bolt 183. When removing the sewage hole cover 9, the second bolt 183 is removed first, and then the sewage hole cover 9 is automatically detached from the rear end cover 3 under the action of the spring 195. At this time, the handle 17 can be pulled to conveniently remove the sewage hole cover 9 for decontamination operations.

[0042] In summary, the working principle of the present invention is as follows: when the water storage chamber 5 in the pump body 4 is to be decontaminated, the dirt hole cover 9 can be removed from the rear end cover 3 by setting the first connecting unit, which will not affect the gap 8 between the friction plate 6 and the impeller 7, thereby ensuring that the performance of the water pump after decontamination can be maintained in the best state at the time of leaving the factory, and ensuring the maximum efficiency of the water pump; in addition, because it is not necessary to remove the entirety from the water storage chamber 5, and the dirt hole cover 9 is small in size and light in weight, and takes a short time to remove, the labor intensity of the decontamination work is reduced, the decontamination time is shortened, and manpower and material resources are saved; when installing the dirt hole cover 9, The first connecting rod 191 is inserted into the first clamping groove 192. As the first connecting rod 191 goes deeper, the pushing block 194 is pushed to move in the second clamping groove 193, the spring 195 is compressed, and the elastic clamping protrusion 196 connected to the pushing block 194 is clamped into the third clamping groove 197. At this time, the sewage hole cover 9 can be connected to the rear end cover 3 by the second bolt 183. When removing the sewage hole cover 9, the second bolt 183 is removed first, and then the sewage hole cover 9 is automatically detached from the rear end cover 3 under the action of the spring 195. At this time, the handle 17 can be pulled to conveniently remove the sewage hole cover 9 for decontamination operations.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-efficiency split front cover for a large-caliber self-priming sewage pump, characterized in that: The pump comprises a front end cover (1), the side of the front end cover (1) is fixedly connected to the rear end cover (3) via a plurality of connecting columns (2), the front end cover (1) and the rear end cover (3) are arranged in a water storage chamber (5) of a pump body (4), the rear end cover (3) is connected to the pump body (4) via a bolt assembly, a friction plate (6) is arranged in the pump body (4), an impeller (7) is arranged in the pump body (4), a gap (8) is arranged between the friction plate (6) and the impeller (7), the centers of the front end cover (1) and the rear end cover (3) are both through-hole structures, and the rear end cover (3) is connected to a dirt hole cover (9) via a first connecting unit; The rear end cover (3) and the plurality of connecting columns (2) are also connected via a second connecting unit; The second connecting unit comprises a plurality of first connecting rods (191) fixedly connected to the dirt hole cover (9); a first snap-in groove (192) penetrating into the connecting column (2) is provided on the rear end cover (3); a second snap-in groove (193) is provided on the side of the first snap-in groove (192); a push block (194) is slidably connected in the second snap-in groove (193); the side of the push block (194) is connected to the second snap-in groove (193) via a spring (195) for providing elastic force; an elastic snap-in protrusion (196) is fixedly connected to the side of the push block (194); and a third snap-in groove (197) cooperating with the elastic snap-in protrusion (196) is provided on the side of the first connecting rod (191).

2. A high-efficiency split front cover for a large-caliber self-priming sewage pump as claimed in claim 1, characterized in that: The water storage chamber (5) is arranged at the lower end of the pump body (4), the pump body (4) is also provided with a water inlet (10), the pump body (4) is provided with a water inlet chamber (11), and the pump body (4) is also provided with a drainage chamber (12).

3. The high-efficiency split front cover for a large-caliber self-priming sewage pump according to claim 1 is characterized in that: A first sealing ring (13) is provided between the front end cover (1) and the pump body (4), a second sealing ring (14) is provided between the rear end cover (3) and the pump body (4), and a third sealing ring (15) is provided between the dirt hole cover (9) and the pump body (4).

4. The high-efficiency split front cover for a large-caliber self-priming sewage pump according to claim 1 is characterized in that: The dirt hole cover (9) is connected to two symmetrically arranged handles (17) via a first bolt (16).

5. The high-efficiency split front cover for a large-caliber self-priming sewage pump as claimed in claim 4 is characterized in that: The first connection unit comprises a plurality of first connection holes (181) distributed in a circumferential array on the rear end cover (3); the sewage hole cover (9) is provided with a plurality of second connection holes (182) distributed in a circumferential array and cooperating with the plurality of first connection holes (181); the sewage hole cover (9) and the rear end cover (3) are connected by means of second bolts (183) passing through the first connection holes (181) and the second connection holes (182).

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