Water pump with self-protection function

Abstract

The utility model discloses a water pump with a self-protection function, and relates to the technical field of water pumps. The device comprises a water pump, the left side of the water pump is fixedly connected with a water inlet pipe, the right side of the water pump is fixedly connected with a water drainage pipe, the right side of the water drainage pipe is fixedly connected with a connecting pipe, the front face of the water drainage pipe is provided with a protection assembly, and the inner wall of the connecting pipe is in contact with a sealing rod; the left side of the circulation pipe is fixedly connected with the front face of the water inlet pipe. According to the water pump, the protection assembly is arranged, specifically, when water flow is small and water pressure is low, discharged water flow cannot push the sealing rod, so that the sealing block is pushed through the flow guide ring, the through hole in the flow guide ring is opened, the water flow enters the runner pipe and flows back into the water inlet pipe, the water amount in the water pump can be increased, air in the water flow is reduced, and the service life of the water pump is prolonged. And the cavitation condition is reduced, the self-protection function is achieved, and therefore the service life of the water pump is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of water pumps, in particular to a water pump with a self-protection function. Background Art

[0002] Coal chemical water pumps are key equipment in coal chemical processes. They are used to transport and circulate various liquid media to ensure the smooth progress of the process. In the coal chemical industry, water pumps are widely used and important. Their types and performance directly affect the stable operation and economy of the entire device.

[0003] Existing coal chemical water pumps usually do not have a self-protection function. When the water flow is small, a large amount of gas will be inhaled. The gas carried in the water flow will corrode the internal structure of the water pump. With long-term operation, the cavitation will increase. After a long time, the inside of the water pump will be seriously corroded, causing damage and economic losses. Therefore, we proposed a water pump with a self-protection function. Utility Model Content

[0004] The utility model aims to provide a water pump with a self-protection function. By setting a protection component, specifically when the water flow is small and the water pressure is low, the discharged water flow will not push the sealing rod, thereby pushing the sealing block through the guide ring, and the through hole on the guide ring will open, and the water flow will enter the circulation pipe, thereby flowing back to the water inlet pipe, which can increase the amount of water in the water pump, thereby reducing the air in the water flow, reducing cavitation, and playing a self-protection function, thereby improving the service life of the water pump, solving the problem that the existing water pump usually does not have a self-protection function, when the water flow is small, a large amount of gas will be inhaled, and with the long-term operation, the cavitation will increase, causing the inside of the water pump to be seriously corroded, causing damage.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is a water pump with a self-protection function, comprising a water pump, a water inlet pipe is fixedly connected to the left side of the water pump, a drain pipe is fixedly connected to the right side of the water pump, a connecting pipe is fixedly connected to the right side of the drain pipe, a protection component is arranged on the front side of the drain pipe, and a sealing rod is contacted with the inner wall of the connecting pipe;

[0007] The protection component includes a circulation pipe, the left side of the circulation pipe is fixedly connected to the front of the water inlet pipe, the right side of the circulation pipe is fixedly connected to the front of the drain pipe, the inner wall of the circulation pipe is fixedly connected to a guide ring, and the front of the guide ring contacts a sealing block. By setting the protection component, specifically when the water flow is small and the water pressure is low, the discharged water flow will not push the sealing rod, thereby pushing the sealing block through the guide ring, then the through hole on the guide ring opens, and the water flows into the circulation pipe, thereby flowing back into the water inlet pipe, which can increase the water volume in the water pump, thereby reducing the air in the water flow, reducing cavitation, playing a self-protection function, and thus increasing the service life of the water pump.

[0008] Furthermore, a limiting groove is provided on the left side of the sealing rod, a fixing ring is provided on the right side of the sealing rod, a fixing block is fixedly connected to the right side of the sealing rod, a conical block is contacted to the left side of the sealing rod, a supporting block 2 is fixedly connected to the front side of the sealing rod, and an arc-shaped sealing plate is fixedly connected to the front side of the supporting block 2. By setting the sealing rod, specifically when the pumped-in water flow is large and the water pressure is large, the sealing rod will be pushed, the connecting pipe will be opened, and the arc-shaped sealing plate will be driven to move to the guide ring to seal the flow pipe, thereby preventing water backflow, and the water will smoothly enter the connecting pipe and be discharged, which can not only enable the water pump to achieve self-protection function, but also will not affect the normal pumping work.

[0009] Furthermore, an opening is provided on the right side of the fixing ring, a plurality of support blocks are fixedly connected to the outer surface of the fixing ring, a side of the plurality of support blocks away from the fixing ring is fixedly connected to the inner wall of the connecting tube, a spring is fixedly connected to the right side of the inner wall of the fixing ring, and a left side of the spring is fixedly connected to the right side of the sealing rod.

[0010] Furthermore, a connecting rod is fixedly connected to the front side of the sealing block, a spring 2 is sleeved on the outside of the connecting rod, a fixing disk is fixedly connected to the front side of the spring 2, a plurality of openings 2 are opened inside the fixing disk, the front side of the connecting rod passes through the fixing disk and extends to the outside, the outer surface of the connecting rod is slidably connected to the center of the fixing disk, and the outer ring of the fixing disk is fixedly connected to the inner wall of the circulation pipe.

[0011] Furthermore, the back side of the spring 2 is fixedly connected to the front side of the sealing block, the right side of the conical block is fixedly connected to a limiting plate, the limiting plate is plugged into the limiting groove, the outer surface of the conical block is fixedly connected to a plurality of supporting blocks 3, and a plurality of supporting blocks 3 are fixedly connected to the inner wall of the drain pipe on the side away from the conical block.

[0012] Furthermore, the front side of the arc-shaped sealing plate contacts the inner wall of the drain pipe, the flow pipe is interconnected with the water inlet pipe and the drain pipe, and the left side of the conical block is conical.

[0013] The utility model has the following beneficial effects:

[0014] 1. The utility model sets a protection component. Specifically, when the water flow is small and the water pressure is low, the discharged water flow will not push the sealing rod, thereby pushing the sealing block through the guide ring, and the through hole on the guide ring is opened, and the water flows into the circulation pipe, and then flows back into the water inlet pipe, which can increase the water volume in the water pump, thereby reducing the air in the water flow, reducing cavitation, playing a self-protection function, and thus improving the service life of the water pump.

[0015] 2. The utility model sets a sealing rod. Specifically, when the water flow drawn in is large and the water pressure is high, the sealing rod will be pushed, and the connecting pipe will be opened, and the arc-shaped sealing plate will be driven to move to the guide ring to seal the flow pipe, thereby preventing water backflow. The water will smoothly enter the connecting pipe and then be discharged, which not only enables the water pump to achieve a self-protection function, but also will not affect the normal pumping work.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the bottom of the connecting pipe of the utility model;

[0020] Figure 3 For this utility model Figure 2 A is a schematic diagram of the enlarged structure of the middle part;

[0021] Figure 4 For this utility model Figure 2 A schematic diagram of the enlarged structure of B;

[0022] Figure 5 This is a schematic diagram of the overall structure of the sealing rod of the utility model.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Water pump; 11. Drain pipe; 12. Connecting pipe; 121. Sealing rod; 211. Limiting groove; 122. Fixing ring; 221. Opening one; 222. Spring one; 223. Support block one; 123. Fixing block; 124. Support block two; 125. Arc sealing plate; 13. Protection assembly; 131. Flow pipe; 132. Guide ring; 133. Sealing block; 331. Connecting rod; 332. Spring two; 134. Fixing plate; 135. Opening two; 14. Conical block; 141. Limiting plate; 142. Support block three. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figure 1-5As shown, the utility model is a water pump with a self-protection function, including a water pump 1, a water inlet pipe is fixedly connected to the left side of the water pump 1, a drain pipe 11 is fixedly connected to the right side of the water pump 1, a connecting pipe 12 is fixedly connected to the right side of the drain pipe 11, a protection component 13 is arranged on the front of the drain pipe 11, and a sealing rod 121 is contacted with the inner wall of the connecting pipe 12, and the protection component 13 includes a circulation pipe 131, the left side of the circulation pipe 131 is fixedly connected to the front of the water inlet pipe, the right side of the circulation pipe 131 is fixedly connected to the front of the drain pipe 11, a guide ring 132 is fixedly connected to the inner wall of the circulation pipe 131, and a sealing block 133 is contacted with the front of the guide ring 132. By setting the protection component 13, specifically when the water flow is small and the water pressure is low, the discharged water flow will not push the sealing rod 121, so that the sealing rod 121 can be The flow ring 132 pushes the sealing block 133, then the through hole on the guide ring 132 opens, and the water flows into the circulation pipe 131, and then flows back into the water inlet pipe, which can increase the amount of water in the water pump, thereby reducing the air in the water flow, reducing cavitation, and playing a self-protection function, thereby improving the service life of the water pump 1. A limiting groove 211 is provided on the left side of the sealing rod 121, and a fixing ring 122 is provided on the right side of the sealing rod 121. The sealing rod 121 is fixedly connected to the right side with a fixing block 123, and the sealing rod 121 contacts with a conical block 14 on the left side. The front of the sealing rod 121 is fixedly connected to a supporting block 124, and the front of the supporting block 124 is fixedly connected to an arc-shaped sealing plate 125. By setting the sealing rod 121, specifically when the water flow drawn in is large and the water pressure is large, The sealing rod 121 will be pushed, and the connecting pipe 12 will be opened, and the arc-shaped sealing plate 125 will be driven to move to the guide ring 132 to seal the circulation pipe 131, thereby preventing water from flowing back. The water will smoothly enter the connecting pipe 12 and then be discharged, which can not only enable the water pump 1 to achieve the self-protection function, but also will not affect the normal pumping work. An opening 221 is provided on the right side of the fixing ring 122, and a plurality of supporting blocks 223 are fixedly connected to the outer surface of the fixing ring 122. The side of the plurality of supporting blocks 223 away from the fixing ring 122 is fixedly connected to the inner wall of the connecting pipe 12, and a spring 222 is fixedly connected to the right side of the inner wall of the fixing ring 122. The left side of the spring 222 is fixedly connected to the right side of the sealing rod 121. When the water flow decreases and the pressure decreases, the sealing rod 121 will The connecting pipe 12 is sealed by resetting under the elastic action of the spring 1 222, and the front side of the sealing block 133 is fixedly connected to the connecting rod 331, and the outer side of the connecting rod 331 is sleeved with a spring 2 332, and the front side of the spring 2 332 is fixedly connected to the fixing disk 134, and a plurality of openings 2 135 are provided inside the fixing disk 134. The front side of the connecting rod 331 passes through the fixing disk 134 and extends to the outside, and the outer surface of the connecting rod 331 is slidably connected to the center of the fixing disk 134, and the outer ring of the fixing disk 134 is fixedly connected to the inner wall of the circulation pipe 131. The spring 2 332 can drive the sealing block 133 to reset to the back side, so that the sealing block 133 contacts the front side of the guide ring 132, thereby sealing the guide ring 132, and the back side of the spring 2 332 is fixedly connected to the front side of the sealing block 133.The right side of the conical block 14 is fixedly connected to a limiting plate 141, which is plugged into the limiting groove 211. The outer surface of the conical block 14 is fixedly connected to a plurality of supporting blocks 142. The side of the plurality of supporting blocks 142 away from the conical block 14 is fixedly connected to the inner wall of the drain pipe 11. The sealing rod 121 will slide on the limiting plate 141 when moving, which is used to limit the sealing rod 121, so that the sealing rod 121 moves linearly. The front of the arc-shaped sealing plate 125 contacts the inner wall of the drain pipe 11, and the flow pipe 131 is interconnected with the water inlet pipe and the drain pipe 11. The left side of the conical block 14 is a conical setting. Since the left side of the conical block 14 is a conical setting, the water flow can be better transported, and the water flow can be more uniform, and the impact force can be reduced.

[0027] A specific application of this embodiment is:

[0028] When in use, the water pump 1 is started to draw water in through the water inlet pipe on the left, and then enters the drain pipe 11. When the water flow is small and the water pressure is low, the discharged water flow will not push the sealing rod 121, thereby pushing the sealing block 133 through the guide ring 132, and the sealing block 133 drives the connecting rod 331 to slide on the fixed plate 134, and at the same time squeezes the spring 332, so that the through hole on the guide ring 132 opens, and the water flows into the circulation pipe 131, and then is discharged through the opening 135 on the fixed plate 134, thereby flowing back into the water inlet pipe, which can increase the water volume in the water pump, thereby reducing the air in the water flow, reducing cavitation, and playing a self-protection function, thereby increasing the service life of the water pump 1. When the water flow drawn in is large and the water pressure is high, the sealing rod 121 will be pushed When the sealing rod 121 moves, the connecting pipe 12 is opened, and the sealing rod 121 slides on the limiting plate 141 to limit the sealing rod 121, so that the sealing rod 121 makes a linear motion, and the sealing rod 121 drives the arc-shaped sealing plate 125 to move through the supporting block 124. When the arc-shaped sealing plate 125 moves to the guide ring 132, the circulation pipe 131 is sealed to prevent water backflow. At the same time, the sealing rod 121 squeezes the spring 222 when it moves, and the water flows smoothly into the connecting pipe 12 and then is discharged. Since the fixing ring 122 is provided with an opening 221, the water in the fixing ring 122 can be discharged. When the water flow is reduced and the pressure is reduced, the sealing rod 121 is reset under the elastic action of the spring 222 to seal the connecting pipe 12.

[0029] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0030] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A water pump with a self-protection function, comprising a water pump (1), wherein the left side of the water pump (1) is fixedly connected to a water inlet pipe, the right side of the water pump (1) is fixedly connected to a drain pipe (11), and the right side of the drain pipe (11) is fixedly connected to a connecting pipe (12), characterized in that: The front of the drainage pipe (11) is provided with a protection assembly (13), and the inner wall of the connecting pipe (12) is in contact with a sealing rod (121); The protection component (13) comprises a circulation pipe (131), the left side of the circulation pipe (131) is fixedly connected to the front of the water inlet pipe, the right side of the circulation pipe (131) is fixedly connected to the front of the drain pipe (11), the inner wall of the circulation pipe (131) is fixedly connected to a guide ring (132), and the front of the guide ring (132) contacts a sealing block (133).

2. A water pump with self-protection function according to claim 1, characterized in that: A limiting groove (211) is provided on the left side of the sealing rod (121); a fixing ring (122) is provided on the right side of the sealing rod (121); a fixing block (123) is fixedly connected to the right side of the sealing rod (121); a conical block (14) is contacted on the left side of the sealing rod (121); a second supporting block (124) is fixedly connected to the front side of the sealing rod (121); and an arc-shaped sealing plate (125) is fixedly connected to the front side of the second supporting block (124).

3. A water pump with self-protection function according to claim 2, characterized in that: An opening (221) is provided on the right side of the fixing ring (122); a plurality of support blocks (223) are fixedly connected to the outer surface of the fixing ring (122); a side of the plurality of support blocks (223) away from the fixing ring (122) is fixedly connected to the inner wall of the connecting pipe (12); a spring (222) is fixedly connected to the right side of the inner wall of the fixing ring (122); and a left side of the spring (222) is fixedly connected to the right side of the sealing rod (121).

4. A water pump with self-protection function according to claim 3, characterized in that: The front side of the sealing block (133) is fixedly connected to a connecting rod (331), the outer side of the connecting rod (331) is sleeved with a second spring (332), the front side of the second spring (332) is fixedly connected to a fixing plate (134), and the fixing plate (134) is provided with a plurality of second openings (135) inside.

5. A water pump with self-protection function according to claim 4, characterized in that: The front side of the connecting rod (331) passes through the fixed disk (134) and extends to the outside. The outer surface of the connecting rod (331) is slidably connected to the center of the fixed disk (134). The outer ring of the fixed disk (134) is fixedly connected to the inner wall of the circulation tube (131).

6. A water pump with self-protection function according to claim 4, characterized in that: The back side of the second spring (332) is fixedly connected to the front side of the sealing block (133), the right side of the conical block (14) is fixedly connected to a limiting plate (141), and the limiting plate (141) is plugged into the limiting groove (211).

7. A water pump with self-protection function according to claim 6, characterized in that: A plurality of support blocks three (142) are fixedly connected to the outer surface of the conical block (14), and a side of the plurality of support blocks three (142) away from the conical block (14) is fixedly connected to the inner wall of the drain pipe (11).

8. A water pump with self-protection function according to claim 4, characterized in that: The front side of the arc-shaped sealing plate (125) contacts the inner wall of the drainage pipe (11); the circulation pipe (131) is interconnected with the water inlet pipe and the drainage pipe (11); and the left side of the conical block (14) is conical.

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