Dry-type installation submersible sewage pump

Abstract

The utility model relates to the technical field of sewage pumps, in particular to a dry type installation submersible sewage pump which comprises a pump body, a pull ring is arranged at the top end of the pump body, a sewage discharge pipe is arranged at the bottom end of the pump body, cushion blocks are symmetrically arranged on the bottom wall of the sewage discharge pipe, an impeller is arranged in the sewage discharge pipe, an installation block is arranged outside an installation rod, and receding grooves are symmetrically formed in the installation rod. An inserting rod is arranged in the avoiding groove, a limiting cap is arranged outside the thread, an avoiding hole is formed in the inserting rod in a penetrating mode, a pressing block is arranged at the top end of the limiting rod, a sliding rod is arranged on one side face of the pressing block, a cover cylinder is arranged at the bottom of the limiting rod, and a limiting groove is formed in the cover cylinder. The drainage pump solves the problems that the fixing mode of a wedge-shaped clamping block and a clamping groove of the drainage pump depends on the tension of a spring, in the long-time high-speed rotation process of a motor, the tension may be gradually weakened, fixing is not stable, and then the rotation stability of the motor is affected.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage pumps, in particular to a dry-type installed submersible sewage pump. Background Art

[0002] The dry-installed submersible sewage pump is a special type of submersible pump. Its characteristic is that the pump body is completely separated from the water and only receives water at the inlet. No water enters the pump when it is running. This installation method ensures that the inside of the pump body will not be corroded by water, thereby improving its service life and reliability. It mainly relies on the submersible principle and motor drive. During operation, the motor drives the impeller inside the pump body to rotate, thereby sucking in the liquid and pushing it to the outlet along the pump shaft direction. This process involves the axial flow principle and the hydraulic principle. The centrifugal force is generated by the rotation of the impeller to promote the flow of liquid. These components work together to enable the submersible pump to efficiently and reliably complete the task of pumping liquid.

[0003] And in the application document with publication number CN207568873U, a dry-installed submersible sewage pump is mentioned. When the impeller of the drainage pump is damaged by corrosion, the screws are unscrewed with a screwdriver, the sealing cover is opened, and the two pull blocks are pulled. The pull rope drives the traction rope to pull the wedge-shaped block out of the slot, and the rotating shaft can be removed to replace the impeller. When installing a new impeller, it is only necessary to insert the rotating shaft upward, and the slot on the rotating shaft will automatically lock on the wedge-shaped block to fix it. However, there are still certain defects that need to be optimized. The specific defects are as follows: Since the fixing method of the wedge-shaped block and the slot of the drainage pump relies on the tension of the spring, this tension may gradually weaken during the long-term high-speed rotation of the motor, resulting in unstable fixation, thereby affecting the rotation stability of the motor.

[0004] Therefore, it is particularly important to design a dry-installed submersible sewage pump to change the above-mentioned technical defects and improve overall practicality. Utility Model Content

[0005] The utility model aims to provide a dry-installed submersible sewage pump to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A dry-installed submersible sewage pump comprises a pump body, a pull ring is provided at the top of the pump body, a sewage pipe is provided at the bottom end of the pump body, a cushion block is symmetrically provided on the bottom wall of the sewage pipe, an impeller is provided inside the sewage pipe, the impeller is connected to a mounting rod, a mounting block is provided outside the mounting rod, avoidance grooves are symmetrically provided on the mounting rod, an insertion rod is provided inside the avoidance groove, a thread is provided at one end of the insertion rod, a limiting cap is provided outside the thread, an avoidance hole is penetrated inside the insertion rod, a limiting rod is provided inside the avoidance hole, a pressing block is provided at the top of the limiting rod, a sliding rod is provided on one side of the pressing block, a cover cylinder is provided at the bottom of the limiting rod, and a limiting groove is provided inside the cover cylinder.

[0008] As a preferred solution of the utility model, mounting plates are symmetrically provided at both ends of the sewage pipe, mounting grooves are provided inside the mounting plates, a filter plate is provided between the two mounting plates, a compression spring is provided at one end of the filter plate, the compression spring is connected to a first limit block, and a second limit block is provided at the other end of the filter plate, and the first limit block, the second limit block and the mounting groove are adapted to each other.

[0009] As a preferred solution of the utility model, a motor is provided inside the pump body, the output end of the motor is fixedly connected to the mounting block, a sealing plate is provided on the bottom wall of the sewage pipe, and the sealing plate and the sewage pipe are connected by bolts.

[0010] As a preferred solution of the utility model, a sliding groove is provided on the outside of the mounting block, the sliding rod is adapted to the sliding groove, and the sliding groove and the sliding rod are slidably connected.

[0011] As a preferred solution of the utility model, the interior of the limiting cap is provided with a thread groove for matching with the thread, and the top end of the pressing block is provided with an anti-skid groove for anti-skid.

[0012] As a preferred solution of the utility model, a tension spring is symmetrically arranged inside the limiting rod, and a limiting ball is arranged at one end of the tension spring, and the limiting ball is matched with the limiting groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, a dry-installed submersible sewage pump is provided, which utilizes the structure of an insert rod, a thread, an avoidance groove, a mounting block, a mounting rod, a limit cap, a limit rod, a pressing fast rod and a sliding rod. By arranging a pull ring passing through the top of the pump body, the pump body is placed in a sewage discharge position, and the motor is started to drive the mounting block and the impeller to rotate to suck in and discharge sewage. When installing the impeller, the insert rod is inserted into the mounting rod, and the pressing block is pressed to move the limit rod until the limit ball enters the limit groove, and the limit cap is rotated to fix the insert rod. When disassembling, the limit cap is released and the limit rod is lifted up to extract the insert rod. A filter plate is provided on the sewage pipe, which is fixed in the mounting groove by a compression spring and a limit block to filter impurities. A sealing plate is provided on the bottom wall of the sewage pipe, and a bolt connection is used to ensure sealing. The problem that the fixing method of the wedge-shaped block and the slot of the drainage pump depends on the tension of the spring, and the tension may gradually weaken during the long-term high-speed rotation of the motor, resulting in unstable fixation, thereby affecting the rotation stability of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a planar structural diagram of the utility model as a whole;

[0016] Figure 2 It is a schematic diagram of the plunger assembly of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the installation block assembly of the utility model.

[0018] In the figure: 1. pump body; 101. pull ring; 102. drain pipe; 103. spacer block; 2. impeller; 201. mounting rod; 202. mounting block; 203. avoidance groove; 204. insertion rod; 205. thread; 206. limit cap; 207. avoidance hole; 208. limit rod; 209. pressing block; 210. sliding rod; 211. cover cylinder; 212. limit groove. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0020] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively with reference to the relevant drawings below. Several embodiments of the utility model are given. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0023] For examples, see Figure 1-3 , the utility model provides a technical solution:

[0024] A dry-installed submersible sewage pump comprises a pump body 1, a pull ring 101 is provided at the top of the pump body 1, a sewage pipe 102 is provided at the bottom of the pump body 1, a cushion block 103 is symmetrically provided on the bottom wall of the sewage pipe 102, an impeller 2 is provided inside the sewage pipe 102, the impeller 2 is connected to a mounting rod 201, a mounting block 202 is provided outside the mounting rod 201, avoidance grooves 203 are symmetrically provided on the mounting rod 201, an insertion rod 204 is provided inside the avoidance groove 203, one end of the insertion rod 204 is provided with a thread 205, and the thread A limiting cap 206 is provided on the outside of the groove 205, an avoidance hole 207 is provided inside the insertion rod 204, a limiting rod 208 is provided inside the avoidance hole 207, a pressing block 209 is provided on the top of the limiting rod 208, a sliding rod 210 is provided on one side of the pressing block 209, a cover cylinder 211 is provided on the bottom of the limiting rod 208, and a limiting groove 212 is provided inside the cover cylinder 211. The pump body 1 is stably placed at the position where sewage needs to be discharged through the pull ring 101 at the top of the pump body 1, and the motor inside the pump body is started. The driving mounting block 202 and the impeller 2 thereon start to rotate. Under the action of the impeller 2, the sewage is sucked in and discharged through the sewage pipe 102. When the impeller 2 needs to be installed, the end of the plug rod 204 with the thread 205 is inserted into the mounting rod 201. By pressing the pressing block 209, the limiting rod 208 moves in the avoidance hole 207 until the limiting ball at the bottom of the limiting rod 208 is inserted into the limiting groove 212 in the cover tube 211. The plug rod 204 can move freely in the avoidance groove 203 and the rotation limit The cap 206 is tightly connected with the thread 205, so as to fix the position of the locking rod 204. When disassembling, the limiting cap 206 is released and the limiting rod 208 is lifted up to remove the limiting rod 208 and the plug 204. In addition, filter plates are provided at both ends of the sewage pipe 102. The filter plates are fixed in the installation groove by the compression spring, the first limiting block and the second limiting block to effectively filter impurities in the sewage. A sealing plate is provided on the bottom wall of the sewage pipe 102, which is connected by bolts to ensure the sealing during the sewage discharge process;

[0025] The two ends of the sewage pipe 102 are symmetrically provided with mounting plates, the interior of the mounting plates is provided with mounting grooves, a filter plate is provided between the two mounting plates, one end of the filter plate is provided with a compression spring, the compression spring is connected to the first limit block, the other end of the filter plate is provided with a second limit block, the first limit block, the second limit block and the mounting groove are adapted to each other, which is convenient for filtering garbage and quickly installing the filter plate, a motor is provided inside the pump body 1, the output end of the motor is fixedly connected to the mounting block 202, a sealing plate is provided on the bottom wall of the sewage pipe 102, and the sealing plate and the sewage pipe 102 are connected by bolts The mounting block 202 is connected to the mounting block 202 for easy maintenance. A slide groove is provided on the outside of the mounting block 202. The slide rod 210 is matched with the slide groove, and the slide groove and the slide rod 210 are slidably connected to facilitate moving the position of the limit rod. The interior of the limit cap 206 is provided with a thread groove for matching with the thread 205. The top of the pressing block 209 is provided with an anti-skid groove for anti-skid, which is convenient for locking the position of the limit rod. The interior of the limit rod 208 is symmetrically provided with a tension spring, and a limiting ball is provided at one end of the tension spring. The limiting ball is matched with the limiting groove 212 to facilitate fixing the position of the limit rod 208.

[0026] The working process of the utility model is as follows: when using this dry-installed submersible sewage pump, firstly, the pump body 1 is stably placed at the position where sewage needs to be discharged through the pull ring 101 at the top of the pump body 1, and the motor inside the pump body is started to drive the mounting block 202 and the impeller 2 thereon to start rotating. Under the action of the impeller 2, sewage is sucked in and discharged through the sewage pipe 102. When it is necessary to install the impeller 2, the end of the plug rod 204 with the thread 205 is inserted into the mounting rod 201, and by pressing the pressing block 209, the limiting rod 208 moves in the avoidance hole 207 until the limiting ball at the bottom of the limiting rod 208 is inserted into the cover tube 211. The limiting groove 212 inside, the plug rod 204 can move freely in the avoidance groove 203, and the limiting cap 206 is rotated to make it tightly connected with the thread 205, so as to fix and lock the position of the plug rod 204. When disassembling, the limiting cap 206 is released and then the limiting rod 208 is lifted, and the limiting rod 208 and the plug rod 204 are pulled out. In addition, filter plates are provided at both ends of the sewage pipe 102, and the filter plates are fixed in the installation groove by compression springs, first limiting blocks and second limiting blocks, so as to effectively filter impurities in sewage. A sealing plate is provided on the bottom wall of the sewage pipe 102, which is connected by bolts to ensure the sealing during the sewage discharge process.

[0027] 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 dry-installed submersible sewage pump, comprising a pump body (1), characterized in that: The top of the pump body (1) is provided with a pull ring (101), the bottom of the pump body (1) is provided with a sewage pipe (102), a cushion block (103) is symmetrically provided on the bottom wall of the sewage pipe (102), an impeller (2) is provided inside the sewage pipe (102), the impeller (2) is connected to a mounting rod (201), a mounting block (202) is provided outside the mounting rod (201), avoidance grooves (203) are symmetrically provided on the mounting rod (201), an insertion rod (204) is provided inside the avoidance groove (203), and the insertion rod (204) is provided inside the insertion rod (204). 04) is provided with a thread (205) at one end, a limiting cap (206) is provided on the outside of the thread (205), an avoidance hole (207) is provided inside the insertion rod (204), a limiting rod (208) is provided inside the avoidance hole (207), a pressing block (209) is provided at the top end of the limiting rod (208), a sliding rod (210) is provided on one side of the pressing block (209), a cover tube (211) is provided at the bottom of the limiting rod (208), and a limiting groove (212) is provided inside the cover tube (211).

2. A dry-installed submersible sewage pump according to claim 1, characterized in that: The sewage pipe (102) is symmetrically provided with mounting plates at both ends, and mounting grooves are provided inside the mounting plates. A filter plate is provided between the two mounting plates, and a compression spring is provided at one end of the filter plate, and the compression spring is connected to a first limit block. The other end of the filter plate is provided with a second limit block, and the first limit block, the second limit block and the mounting groove are adapted to each other.

3. A dry-installed submersible sewage pump according to claim 1, characterized in that: A motor is provided inside the pump body (1), the output end of the motor is fixedly connected to the mounting block (202), a sealing plate is provided on the bottom wall of the sewage pipe (102), and the sealing plate and the sewage pipe (102) are connected by bolts.

4. A dry-installed submersible sewage pump according to claim 1, characterized in that: A sliding groove is provided on the outside of the mounting block (202), the sliding rod (210) is adapted to the sliding groove, and the sliding groove and the sliding rod (210) are slidably connected.

5. A dry-installed submersible sewage pump according to claim 1, characterized in that: The interior of the limiting cap (206) is provided with a thread groove adapted to match the thread (205), and the top end of the pressing block (209) is provided with an anti-skid groove for preventing skidding.

6. A dry-installed submersible sewage pump according to claim 1, characterized in that: A tension spring is symmetrically arranged inside the limiting rod (208), and a limiting ball is arranged at one end of the limiting spring, and the limiting ball is matched with the limiting groove (212).

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