Adjustable vortex pump

Abstract

The present invention provides an adjustable vortex pump, which belongs to the field of mechanical technology. It solves the problem of poor stability in the prior art. The adjustable vortex pump includes a pressure relief hole, a tongue-type slider, a positioning frame and two adjusting bolts. The pressure relief hole is located on the side of the pump body and is connected to the installation cavity. The tongue-type slider matches the pressure relief hole and the tongue-type slider is embedded in the pressure relief hole. The positioning frame is fixedly connected to the outside of the pump body. The two adjusting bolts are threadedly connected to the positioning frame and the inner end of the two adjusting bolts rests on the tongue-type slider. The adjustable vortex pump has high stability.

Description

Technical Field

[0001] The invention belongs to the field of mechanical technology and relates to an adjustable vortex pump. Background Art

[0002] The vortex pump is a type of vane pump. It is different from the centrifugal and axial flow pumps in principle and structure. It is called a vortex pump because it inhales and discharges liquid by the vortex motion of the liquid caused by the rotation of the impeller.

[0003] The main components of a vortex pump are the impeller, pump body, pump cover and the annular flow channel formed by them. The vortex pump impeller is different from the centrifugal pump impeller. It is a disc with radial blades on the outer wheel. The liquid enters the flow channel from the suction pipe, obtains energy through the rotating impeller, and is transported to the discharge pipe to complete the working process of the pump.

[0004] The existing vortex pump usually has a pump body and a pump cover directly connected by fasteners. Once a vacuum occurs between the pump body and the pump cover, it is easy to cause difficulty in separating and disassembling the pump body and the pump cover. Summary of the invention

[0005] The object of the present invention is to provide an adjustable vortex pump which can facilitate the disassembly of the pump body and the pump cover and has a compact structure in view of the above-mentioned problems existing in the prior art.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] An adjustable vortex pump, the adjustable vortex pump comprises a pump body, a pump cover, a bracket, a spring, an adjusting bolt, a rotating shaft and an impeller, the interior of the pump body is a cavity, the pump cover is connected to the open end of the pump body and a mounting cavity with a cavity inside is formed between the pump body and the pump cover, the rotating shaft is axially fixed to the pump body, the impeller is located in the mounting cavity and the impeller is fixedly connected to the inner end of the rotating shaft, the outer end of the rotating shaft extends out of the pump body for connection with a driving member, the bracket is fixedly connected to the open end of the pump body, the middle part of the adjusting bolt is threadedly connected to the bracket The bracket is arranged on the inner end of the adjusting bolt 1 being axially fixedly connected to the pump cover, and the outer end of the adjusting bolt 1 extending out of the bracket. The two ends of the above-mentioned spring 1 act on the pump cover and the bracket respectively. The bracket is characterized in that it also includes a pressure relief hole, a tongue-type slider, a positioning bracket and an adjusting bolt 2. The above-mentioned pressure relief hole is located on the side of the pump body and is connected to the installation cavity. The above-mentioned tongue-type slider matches the pressure relief hole and the tongue-type slider is embedded in the pressure relief hole. The above-mentioned positioning bracket is fixedly connected to the outside of the pump body. The above-mentioned adjusting bolt 2 is threadedly connected to the positioning bracket and the inner end of the adjusting bolt 2 rests on the tongue-type slider.

[0008] Under the action of adjusting bolt 1, the pump cover is stably buckled on the pump body, and the impeller is located in the installation cavity between the pump body and the pump cover. Since the inner end of the rotating shaft is fixedly connected to the impeller, the impeller can rotate smoothly in the installation cavity when the driving member drives the rotating shaft to rotate.

[0009] When the adjusting bolt is turned, the distance between the pump cover and the pump body can be changed, thereby changing the size of the installation cavity, thereby adapting to various working occasions and improving its applicability.

[0010] Since the second adjusting bolt is threadedly connected to the positioning frame, the second adjusting bolt abuts against the tongue slider, and the tongue slider located at the pressure relief hole always blocks the pressure relief hole to ensure that the vortex pump can work normally. When it needs to be disassembled, the positioning frame is disassembled first. After the tongue slider is moved out of the pressure relief hole, the installation cavity between the pump body and the pump cover is in a non-vacuum state. At this time, the pump cover can be stably separated from the pump body.

[0011] Of course, when connecting, tighten the adjusting bolt 2 to ensure that the adjusting bolt 2 is against the tongue-type slider, so that the pressure relief hole can be stably in a closed state.

[0012] In the above-mentioned adjustable vortex pump, the outer end of the pressure relief hole is provided with a recessed step seat, and the tongue-blocking slider is provided with a retaining edge matching the step seat.

[0013] After the step seat contacts the retaining edge, it can prevent the tongue-type slider from transitioning into the installation cavity. Since the tongue-type slider does not contact the impeller, its stability is relatively high.

[0014] The adjustable vortex pump further comprises a second spring, the two ends of which act on the lower positioning frame and the tongue-isolating slider respectively, and the retaining edge abuts against the step seat under the elastic force of the second spring.

[0015] Under the elastic force of the second spring, it can be ensured that the retaining edge of the tongue-isolating sliding block always has a tendency to abut against the step seat.

[0016] In the above-mentioned adjustable vortex pump, the side of the tongue-blocking slider has a positioning groove in the shape of an annular recess, and the positioning groove has a sealing ring, which is tightly pressed between the tongue-blocking slider and the pump body.

[0017] The sealing ring can improve the sealing performance between the tongue slider and the pressure relief hole of the pump body.

[0018] In the above-mentioned adjustable vortex pump, the number of the second springs is two, and the two second springs are symmetrically distributed on both sides of the second adjusting bolt.

[0019] This can ensure that the tongue-blocking slider is evenly stressed, thus ensuring its stability and compactness.

[0020] In the above-mentioned adjustable vortex pump, the positioning frame includes a U-shaped body, and the U-shaped port of the body has a connecting portion protruding outward, the connecting portion contacts the outer side of the pump body and is fixed to the outside of the pump body by fasteners.

[0021] Such a structure enables the positioning frame to be stably connected to the outside of the pump body.

[0022] In the above-mentioned adjustable vortex pump, the positioning frame and the connecting part are an integrated structure.

[0023] In the above-mentioned adjustable vortex pump, the second adjusting bolt and the second spring are both located at the inner side of the U-shaped recess of the body.

[0024] This can prevent the adjusting bolt 2 and the spring 2 from being affected by the outside world, and effectively improve the stability of the assembly.

[0025] In the above-mentioned adjustable vortex pump, the second spring is directly opposite to the step seat.

[0026] Such a structure can improve the connection stability between the tongue slider and the pump body.

[0027] In the above-mentioned adjustable vortex pump, the diameter of the pressure relief hole matches the thickness of the impeller and the pressure relief hole faces the side of the impeller.

[0028] After the tongue-blocking slider is moved out of the pressure relief hole, the state of the impeller can be visually observed through the pressure relief hole.

[0029] Compared with the prior art, the adjustable vortex pump can eliminate the vacuum state between the pump body and the pump cover. Therefore, the pump cover and the pump body are easy to disassemble and the stability is relatively high.

[0030] At the same time, the second adjusting bolt and the second spring are covered by the positioning frame, which effectively improves the structural compactness of the entire assembly and has high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the cross-sectional structure of the adjustable vortex pump.

[0032] In the figure, 1, pump body; 1a, pressure relief hole; 1a1, step seat; 2, pump cover; 3, bracket; 4, spring one; 5, adjusting bolt one; 6, rotating shaft; 7, impeller; 8, tongue slider; 8a, stop edge; 9, positioning frame; 9a, connecting part; 10, adjusting bolt two; 11, spring two; 12, positioning groove; 13, sealing ring. DETAILED DESCRIPTION

[0033] like Figure 1As shown, the adjustable vortex pump includes a pump body 1, a pump cover 2, a bracket 3, a spring 4, an adjusting bolt 5, a rotating shaft 6 and an impeller 7. The interior of the pump body 1 is a cavity. The pump cover 2 is connected to the open end of the pump body 1 and a mounting cavity with a cavity inside is formed between the pump body 1 and the pump cover 2. The rotating shaft 6 is axially fixed to the pump body 1. The impeller 7 is located in the mounting cavity and the impeller 7 is fixedly connected to the inner end of the rotating shaft 6. The outer end of the rotating shaft 6 extends out of the pump body 1 for connection with a driving member. The bracket 3 is fixedly connected to the open end of the pump body 1. The middle part of the adjusting bolt 5 is threadedly connected to the bracket 3. The inner end of the adjusting bolt 5 is axially fixed to the pump cover 2. The outer end of the adjusting bolt 5 extends out of the bracket 3. The two ends of the spring 4 act on the pump cover 2 and the bracket 3 respectively.

[0034] The adjustable vortex pump also includes a pressure relief hole 1a, a tongue-type slider 8, a positioning frame 9 and an adjusting bolt 10. The pressure relief hole 1a is located on the side of the pump body 1 and is communicated with the mounting cavity. The tongue-type slider 8 matches the pressure relief hole 1a and is embedded in the pressure relief hole 1a. The positioning frame 9 is fixedly connected to the outside of the pump body 1. The adjusting bolt 10 is threadedly connected to the positioning frame 9 and the inner end of the adjusting bolt 10 rests against the tongue-type slider 8.

[0035] The outer end of the pressure relief hole 1a is provided with a recessed step seat 1a1, and the tongue-isolating slider 8 is provided with a retaining edge 8a matching the step seat 1a1.

[0036] It also includes a second spring 11, the two ends of which act on the lower positioning frame 9 and the tongue-isolating slider 8 respectively. Under the elastic force of the second spring 11, the retaining edge 8a abuts against the step seat 1a1.

[0037] The side of the tongue-isolating slider 8 has a positioning groove 12 in the shape of an annular recess. The positioning groove 12 has a sealing ring 13 . The sealing ring 13 is tightly pressed between the tongue-isolating slider 8 and the pump body 1 .

[0038] The number of the springs 2 11 is two, and the two springs 2 11 are symmetrically distributed on both sides of the adjusting bolt 2 10 .

[0039] The positioning frame 9 includes a U-shaped body, and a connecting portion 9a protruding outward is provided at the U-shaped end of the body. The connecting portion 9a contacts the outer side of the pump body 1 and is fixedly connected to the outer side of the pump body 1 by fasteners.

[0040] The positioning frame 9 and the connecting portion 9a are an integrated structure.

[0041] The adjusting bolt 10 and the spring 11 are both located at the inner side of the U-shaped recess of the body.

[0042] The spring 2 11 is directly opposite to the step seat 1a1.

[0043] The aperture size of the pressure relief hole 1 a matches the thickness size of the impeller 7 and the pressure relief hole 1 a faces the side of the impeller 7 .

[0044] Under the action of adjusting bolt 1, the pump cover is stably buckled on the pump body, and the impeller is located in the installation cavity between the pump body and the pump cover. Since the inner end of the rotating shaft is fixedly connected to the impeller, the impeller can rotate smoothly in the installation cavity when the driving member drives the rotating shaft to rotate.

[0045] When the adjusting bolt is turned, the distance between the pump cover and the pump body can be changed, thereby changing the size of the installation cavity, thereby adapting to various working occasions and improving its applicability.

[0046] Since the second adjusting bolt is threadedly connected to the positioning frame, the second adjusting bolt abuts against the tongue slider, and the tongue slider located at the pressure relief hole always blocks the pressure relief hole to ensure that the vortex pump can work normally. When it needs to be disassembled, the positioning frame is disassembled first. After the tongue slider is moved out of the pressure relief hole, the installation cavity between the pump body and the pump cover is in a non-vacuum state. At this time, the pump cover can be stably separated from the pump body.

[0047] Of course, when connecting, tighten the adjusting bolt 2 to ensure that the adjusting bolt 2 is against the tongue-type slider, so that the pressure relief hole can be stably in a closed state.

Claims

1. An adjustable vortex pump, the adjustable vortex pump comprises a pump body, a pump cover, a bracket, a spring, an adjusting bolt, a rotating shaft and an impeller, the interior of the pump body is a cavity, the pump cover is connected to the open end of the pump body and a mounting cavity with a cavity inside is formed between the pump body and the pump cover, the rotating shaft is axially fixed to the pump body, the impeller is located in the mounting cavity and the impeller is fixedly connected to the inner end of the rotating shaft, the outer end of the rotating shaft extends out of the pump body for connecting with a driving member, the bracket is fixedly connected to the open end of the pump body, the middle part of the adjusting bolt is threadedly connected to the bracket, the inner end of the adjusting bolt is axially fixed to the pump cover, the outer end of the adjusting bolt extends out of the bracket, the two ends of the spring act on the pump cover and the bracket respectively, and the characteristics are as follows: It also includes a pressure relief hole, a tongue-separating slider, a positioning frame and two adjusting bolts, wherein the pressure relief hole is located at the side of the pump body and is connected to the installation cavity, the tongue-separating slider matches the pressure relief hole and the tongue-separating slider is embedded in the pressure relief hole, the positioning frame is fixedly connected to the outside of the pump body, the two adjusting bolts are threadedly connected to the positioning frame and the inner ends of the two adjusting bolts are against the tongue-separating slider; The outer end of the pressure relief hole is provided with a concave step seat, and the tongue-isolating slider is provided with a stop edge matching the step seat; It also includes a second spring, the two ends of which act on the lower positioning frame and the tongue-isolating slider respectively, and the retaining edge abuts against the step seat under the elastic force of the second spring; The side of the tongue-separating slider has a positioning groove in the shape of an annular recess, and the positioning groove has a sealing ring, which is tightly pressed between the tongue-separating slider and the pump body; The number of the second springs is two, and the two second springs are symmetrically distributed on both sides of the second adjusting bolt; The positioning frame comprises a U-shaped body, the U-shaped end of the body has a connecting portion protruding outward, the connecting portion contacts the outer side of the pump body and is fixedly connected to the outer side of the pump body by a fastener; The positioning frame and the connecting part are an integrated structure; The second adjusting bolt and the second spring are both located at the inner side of the U-shaped notch of the body; The second spring is directly opposite to the step seat; The aperture size of the pressure relief hole matches the thickness size of the impeller and the pressure relief hole faces the side of the impeller.

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