阅读说明：本技术 一种潜水泵下井辅助设备 (Submersible pump auxiliary assembly that goes into well ) 是由 白涛 于 2020-07-24 设计创作，主要内容包括：本发明涉及农业机械技术领域,尤其涉及一种潜水泵下井辅助设备,包括机架、把手、支撑脚、定向滚轮；所述机架为桶状,其内腔用于放置潜水泵；所述述机架底部设置有多个进水孔,所述把手,用于捆绑绳索；所述把手固定设置于机架侧面上部,并且所述把手绕机架轴线周向均匀设置多个,为了使绳索对机架施加力均匀；所述支撑脚为杆状,所述支撑脚一端固定设置与机架的侧面上,所述机架绕其轴线周向在同一水平高度均匀设置四个支撑脚；所述支撑脚在机架侧面共设置有上下两层,每层有四个支撑脚；所述定向滚轮固定设置于支撑脚的自由端,所述定向滚轮用于沿井筒上滚动。(The invention relates to the technical field of agricultural machinery, in particular to a submersible pump well descending auxiliary device, which comprises a rack, a handle, supporting legs and directional rollers, wherein the rack is provided with a support frame; the rack is barrel-shaped, and an inner cavity of the rack is used for placing a submersible pump; the bottom of the rack is provided with a plurality of water inlet holes, and the handle is used for binding a rope; the handles are fixedly arranged at the upper part of the side surface of the rack, and a plurality of handles are uniformly arranged in the circumferential direction around the axis of the rack so as to enable the rope to uniformly apply force to the rack; the supporting legs are rod-shaped, one ends of the supporting legs are fixedly arranged on the side surface of the rack, and the rack is uniformly provided with four supporting legs at the same horizontal height along the circumferential direction of the axis of the rack; the supporting legs are provided with an upper layer and a lower layer on the side face of the rack, and each layer is provided with four supporting legs; the directional roller is fixedly arranged at the free end of the supporting leg and used for rolling along the shaft.)

1. A submersible pump well descending auxiliary device comprises a rack, a handle, supporting legs and directional rollers;

the rack is barrel-shaped, and an inner cavity of the rack is used for placing a submersible pump; a plurality of water inlet holes are formed in the bottom of the rack;

the handle is used for binding a rope and is fixedly arranged at the upper part of the side surface of the rack;

the supporting legs are rod-shaped, one ends of the supporting legs are fixedly arranged on the side surface of the rack, and the rack is uniformly provided with four supporting legs at the same horizontal height along the circumferential direction of the axis of the rack; the supporting legs are provided with an upper layer and a lower layer on the side face of the rack, and each layer is provided with four supporting legs;

the directional roller is fixedly arranged at the free end of the supporting leg and used for rolling along the shaft.

2. A submersible pump downhole assistance apparatus as claimed in claim 1, wherein:

the anti-collision device further comprises an anti-collision assembly for preventing the submersible pump from colliding with the rack during operation.

3. A submersible pump downhole assistance apparatus as claimed in claim 1, wherein:

the supporting legs comprise inner rods, outer rods and springs;

one end of the inner rod is fixed on the outer side wall of the rack, the baffle is circular, the diameter of the baffle is larger than that of the inner rod, and one end of the baffle is fixed at the free end of the inner rod;

the outer rod is cylindrical, a cylindrical hole cavity is formed in the outer rod, an end hole is formed in one end of the outer rod, and the end hole is coaxial with and communicated with the hole cavity;

the baffle plate penetrates through the hole cavity in a sliding mode through the end hole, and the baffle plate can axially slide along the hole cavity;

the spring is sleeved outside the inner rod in a penetrating mode, one end of the spring is fixedly arranged on the outer side face of the rack, and the other end of the spring is fixedly arranged at one end, provided with an end hole, of the outer rod.

4. A submersible pump downhole assistance apparatus as claimed in claim 1, wherein:

the outer rod also comprises a positioning hole,

the positioning hole comprises a counter bore and a bottom hole;

the bottom hole is arranged on the side surface of the lower square circle of the outer rod, the axis of the bottom hole is vertical, the counter bore is arranged on the side surface of the hole cavity circle, and the counter bore is coaxial and communicated with the bottom hole;

the positioning holes are arranged in parallel, and the size of the position closest to the two adjacent positioning holes is the thickness of the baffle plate;

the submersible pump downhole auxiliary equipment further comprises a positioning component,

the positioning component comprises a countersunk head, a bottom rod and a floating ball,

the lower end of the countersunk head is fixedly connected with the upper end of the low rod, and the lower end of the low rod is fixedly provided with a floating ball;

the bottom rod is sleeved in the bottom hole in a sliding mode, the diameter of the countersunk head is larger than that of the bottom hole but smaller than that of the countersunk hole, the positioning assembly cannot slip out of the positioning hole, and the buoyancy of the floating ball in water is larger than the sum of the weights of the floating ball, the bottom rod and the countersunk head.

5. A submersible pump downhole assistance apparatus as claimed in claim 1, wherein:

the outer rod further comprises a circular table hole, the circular table hole is formed in the lower side face of the outer rod cylinder, the axis of the circular table hole is vertical, the large-radius end of the circular table hole is close to the hole cavity of the outer rod, the circular table hole is communicated with the hole cavity, and the circular table hole is close to one end, fixed with a directional roller, of the outer rod;

the submersible pump well descending auxiliary equipment further comprises a water column, a crank rod and a water bag,

the water column comprises a water inlet rod, a circular table column, a first water inlet hole and a second water inlet hole,

the upper end of the water inlet rod is provided with an arc surface with the same radius as the bore cavity, the lower end of the water inlet rod is fixed at the small end of the circular table column, the first water inlet hole extends to the circular table column from the upper end of the water inlet rod, one end of the second water inlet hole is communicated with the lower end of the first water inlet hole, the other end of the second water inlet hole is opened on the conical surface of the circular table column, and the circular table column is circumferentially provided with a plurality of second water inlet holes around the axis of the circular table column;

the water inlet column is sleeved in the circular truncated cone hole in a sliding mode;

the turning rod comprises a vertical plate and a transverse plate, the upper side of the vertical plate is fixed on the lower part of the cylindrical side surface of the outer rod, the transverse plate is fixedly arranged on the vertical plate, and the transverse plate is horizontal and is positioned right below the circular platform hole;

the water bag comprises an elastic bag and an elastic bag tube, the elastic bag is hollow and elastic, the elastic bag is communicated with the elastic bag tube, and the free end of the elastic bag tube is communicated with a water outlet of the submersible pump;

the upper side of the elastic bag is fixed at the large end of the circular table column, and the lower side of the elastic bag is fixed on the transverse plate.

6. A submersible pump downhole assistance apparatus as claimed in claim 2, wherein:

the anti-collision assembly comprises bolts, the bolts are in threaded connection with the side wall of the rack, and the rack is uniformly provided with four bolts around the axis circumference of the rack.

7. A submersible pump downhole assistance apparatus as claimed in claim 2, wherein:

the anti-collision assembly comprises a fixed bag and a fixed bag tube;

the fixed bag is fixed in the inner cavity of the rack, the rack is uniformly provided with a plurality of fixed bags on the inner side wall around the axis of the rack, the fixed bags enclose a circle, and the fixed bag tubes are communicated with the fixed bags.

Technical Field

The invention relates to the technical field of agricultural machinery, in particular to a submersible pump downhole auxiliary device.

Background

The submersible pump is an important device for field irrigation, and when the submersible pump is used, the whole unit is submerged into a well to work and extract water to the ground surface.

When the submersible pump goes into the well, one end of the rope is fixed on the submersible pump, and the rope fixed on the submersible pump is slowly sent into the well by hands manually, so that the submersible pump slowly goes deep into the well bottom; however, when the submersible pump is manually conveyed into the well, the shaking of the hand can drive the water pump at one end of the rope to shake violently, so that the submersible pump collides with the well wall.

However, in the process of implementing the technical solution of the invention in the embodiments of the present application, the inventors of the present application find that the above-mentioned technology has at least the following technical problems: with the increase of the downhole frequency of the submersible pump, the submersible pump and the well wall are easy to break down.

Disclosure of Invention

The embodiment of the application provides a immersible pump auxiliary assembly that goes into well, has solved among the prior art immersible pump and has gone into the well easy problem with the wall of a well collision, has realized the process of going into the well immersible pump and the wall of a well and collision.

The embodiment of the application provides a submersible pump downhole auxiliary device, which comprises a rack, a handle, supporting legs and directional rollers;

the rack is barrel-shaped, and an inner cavity of the rack is used for placing a submersible pump; a plurality of water inlet holes are formed in the bottom of the rack;

the handle is used for binding a rope and is fixedly arranged at the upper part of the side surface of the rack;

the supporting legs are rod-shaped, one ends of the supporting legs are fixedly arranged on the side surface of the rack, and the rack is uniformly provided with four supporting legs at the same horizontal height along the circumferential direction of the axis of the rack; the supporting legs are provided with an upper layer and a lower layer on the side face of the rack, and each layer is provided with four supporting legs.

The directional roller is fixedly arranged at the free end of the supporting leg and used for rolling along the shaft.

Further, still include crashproof subassembly for prevent that the immersible pump from colliding with the frame when working.

Furthermore, the supporting legs comprise an inner bar, an outer bar and a spring;

one end of the inner rod is fixed on the outer side wall of the rack, the baffle is circular, the diameter of the baffle is larger than that of the inner rod, and one end of the baffle is fixed at the free end of the inner rod;

the outer rod is cylindrical, a cylindrical hole cavity is formed in the outer rod, an end hole is formed in one end of the outer rod, and the end hole is coaxial with and communicated with the hole cavity;

the baffle plate penetrates through the hole cavity in a sliding mode through the end hole, and the baffle plate can axially slide along the hole cavity;

the spring is sleeved outside the inner rod in a penetrating mode, one end of the spring is fixedly arranged on the outer side face of the rack, and the other end of the spring is fixedly arranged at one end, provided with an end hole, of the outer rod.

Further, when the submersible pump works, the supporting feet are changed into a first rigid scheme: the outer rod also comprises a positioning hole,

the positioning hole comprises a counter bore and a bottom hole;

the bottom hole is arranged on the side surface of the lower square circle of the outer rod, the axis of the bottom hole is vertical, the counter bore is arranged on the side surface of the hole cavity circle, and the counter bore is coaxial and communicated with the bottom hole;

the positioning holes are arranged in parallel, and the size of the position closest to the two adjacent positioning holes is the thickness of the baffle plate;

the submersible pump downhole auxiliary equipment further comprises a positioning component,

the positioning component comprises a countersunk head, a bottom rod and a floating ball,

the lower end of the countersunk head is fixedly connected with the upper end of the low rod, and the lower end of the low rod is fixedly provided with a floating ball;

the bottom rod is sleeved in the bottom hole in a sliding mode, the diameter of the countersunk head is larger than that of the bottom hole but smaller than that of the countersunk hole, the positioning assembly cannot slip out of the positioning hole, and the buoyancy of the floating ball in water is larger than the sum of the weights of the floating ball, the bottom rod and the countersunk head.

Further, when the submersible pump works, the supporting feet are changed into a first rigid scheme: the outer rod further comprises a circular table hole, the circular table hole is formed in the lower side face of the outer rod cylinder, the axis of the circular table hole is vertical, the large-radius end of the circular table hole is close to the hole cavity of the outer rod, the circular table hole is communicated with the hole cavity, and the circular table hole is close to one end, fixed with a directional roller, of the outer rod;

the submersible pump well descending auxiliary equipment further comprises a water column, a crank rod and a water bag,

the water column comprises a water inlet rod, a circular table column, a first water inlet hole and a second water inlet hole,

the upper end of the water inlet rod is provided with an arc surface with the same radius as the bore cavity, the lower end of the water inlet rod is fixed at the small end of the circular table column, the first water inlet hole extends to the circular table column from the upper end of the water inlet rod, one end of the second water inlet hole is communicated with the lower end of the first water inlet hole, the other end of the second water inlet hole is opened on the conical surface of the circular table column, and the circular table column is circumferentially provided with a plurality of second water inlet holes around the axis of the circular table column;

the water inlet column is sleeved in the circular truncated cone hole in a sliding mode;

the turning rod comprises a vertical plate and a transverse plate, the upper side of the vertical plate is fixed on the lower part of the cylindrical side surface of the outer rod, the transverse plate is fixedly arranged on the vertical plate, and the transverse plate is horizontal and is positioned right below the circular platform hole;

the water bag comprises an elastic bag and an elastic bag tube, the elastic bag is hollow and elastic, the elastic bag is communicated with the elastic bag tube, and the free end of the elastic bag tube is communicated with a water outlet of the submersible pump;

the upper side of the elastic bag is fixed at the large end of the circular table column, and the lower side of the elastic bag is fixed on the transverse plate.

Further, the first aspect of the anti-collision assembly:

the anti-collision assembly comprises bolts, the bolts are in threaded connection with the side wall of the rack, and the rack is uniformly provided with four bolts around the axis circumference of the rack.

Further, the first aspect of the anti-collision assembly:

the anti-collision assembly comprises a fixed bag and a fixed bag tube;

the fixed bag is fixed in the inner cavity of the rack, the rack is uniformly provided with a plurality of fixed bags on the inner side wall around the axis of the rack, the fixed bags enclose a circle, and the fixed bag tubes are communicated with the fixed bags.

One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

when the submersible pump 02 enters the well, the directional roller 40 on the rack 10 is supported on the inner wall of the shaft 00, so that the rack 10 cannot shake along with the rope in the radial direction of the shaft 00, and the rack 10 only moves in the vertical direction, thereby solving the problem of collision between the submersible pump 02 and the shaft 00.

Drawings

FIG. 1 is a cross-sectional view of an embodiment of the present application positioned within a well.

Fig. 2 is a top view of an embodiment of the present application.

Fig. 3 is a partial enlarged view at a.

Fig. 4 shows a first preferred embodiment of the support foot.

Fig. 5 is a schematic structural diagram of the positioning member.

Fig. 6(a) is a diagram of the initial state of a second optimization scheme for supporting the rigidity of the feet.

Fig. 6(b) is a working state diagram of a second optimization scheme for supporting the rigidity of the feet.

Fig. 7 is a schematic diagram of a water column structure.

Fig. 8 shows another way of securing the submersible pump in the housing.

In the figure, a water pipe 03, a submersible pump 02, a shaft 00, a frame 10, a water inlet hole 101, a handle 20, supporting feet 30, an inner rod 301, a baffle 302, an outer rod 303, a bore 3031, an end hole 3032, a positioning hole 3033, a counter bore 30331, a circular truncated cone hole 3034, a bottom hole 3032, a spring 304, a directional roller 40, a positioning piece 50, a counter 51, a bottom rod 52, a floating ball 53, a water column 60, a water inlet rod 61, a circular truncated cone column 62, a first water inlet hole 63, a second water inlet hole 64, a crank rod 70, a riser 71, a cross rod 72, a water bag 80, an elastic bag 81, an elastic bag pipe 82, a bolt 90, a fixed bag 100 and a fixed bag pipe 110.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present; the terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Before formally explaining the invention, the prior art is briefly explained, a shaft 00 is made of concrete, a submersible pump 02 is used for pumping water, and a water pipe 03 is communicated with a water outlet end of the submersible pump 02.

A submersible pump well descending auxiliary device comprises a frame 10, a handle 20, supporting feet 30 and a directional roller 40;

the rack 10 is barrel-shaped, and an inner cavity of the rack is used for placing a submersible pump 02; the bottom of the frame 10 is provided with a plurality of water inlets 101.

The handle 20 is used for binding a rope; the handles 20 are fixedly arranged at the upper part of the side surface of the frame 10, and a plurality of the handles 20 are uniformly arranged around the axis of the frame 10 in the circumferential direction, so that the rope can uniformly apply force to the frame 10.

The supporting legs 30 are rod-shaped, one end of each supporting leg 30 is fixedly arranged on the side surface of the rack 10, and four supporting legs 30 are uniformly arranged on the rack 10 at the same horizontal height in the circumferential direction around the axis of the rack 10; the supporting legs 30 are provided with an upper layer and a lower layer on the side surface of the frame 10, and each layer is provided with four supporting legs 30.

The directional roller 40 is fixedly arranged at the free end of the supporting foot 30, and the directional roller 40 is used for rolling along the shaft 00.

Preparation work before the submersible pump 02 goes into the well: the submersible pump 02 is placed in the inner cavity of the frame 10, the handle 20 is tied by a rope, then the frame is placed in the well, the directional roller 40 descends along the shaft, at the moment, the directional roller 40 on the frame 10 is supported on the inner wall of the shaft 00, therefore, the frame 10 cannot shake along with the rope in the radial direction of the shaft 00, the frame 10 only moves in the vertical direction, and the collision between the submersible pump 02 and the shaft 00 is prevented.

And when the submersible pump 02 works, the submersible pump 02 shakes, so that the submersible pump 02 collides with the inner wall of the rack 10, the submersible pump 02 is prevented from colliding with the rack 10, and the equipment is further improved.

The submersible pump well descending auxiliary equipment further comprises an anti-collision component, so that the submersible pump 02 is prevented from colliding with the rack 10;

the first scheme is as follows: the anti-collision assembly comprises a bolt 90, the bolt 90 is in threaded connection with the side wall of the rack 10, and the rack 10 is uniformly provided with four bolts 90 around the axis circumference of the rack 10.

The submersible pump 02 can be tightly supported and fixed by the tail ends of the four bolts 90 through adjusting the bolts 90 before the water pump goes into the well.

Scheme II: the anti-collision assembly comprises a fixed bag 100 and a fixed bag tube 110;

the fixing bags 100 are fixed in an inner cavity of the rack 10, the rack 10 is uniformly provided with a plurality of fixing bags 100 on the inner side wall around the axis of the rack 10, the fixing bags 100 are enclosed into a circle, and the fixing bag tubes 110 are used for communicating the fixing bags 100;

before the water pump goes into the well, the fixed bag pipe 110 is inflated by filling water into the fixed bag pipe 110, the submersible pump 02 is fixed, and the submersible pump 02 is prevented from colliding with the rack 10.

In the process of actually testing the performance of the equipment, the diameters of the shafts 00 of different water wells are different, and the diameters of the different shafts of the same water well are slightly different, so that the directional roller 40 is required to be always in contact with the inner wall of the shaft 00 regardless of the diameter of the shaft, and the supporting legs 30 are further improved to be telescopic.

The supporting leg 30 comprises an inner bar 301, an outer bar 303 and a spring 304;

one end of the inner rod 301 is fixed on the outer side wall of the rack 10, the baffle 302 is circular, the diameter of the baffle 3011 is larger than that of the inner rod 301, and one end of the baffle 3011 is fixed at the free end of the inner rod 301;

the outer rod 303 is cylindrical, a cylindrical cavity 3031 is arranged in the outer rod 303, an end hole 3032 is arranged at one end of the outer rod 303, and the end hole 3032 is coaxial with and communicated with the cavity 3031;

the baffle 302 is slidably sleeved in the bore 3031 through the end hole 3032, and the baffle 302 can axially slide along the bore 3031;

the spring 304 is sleeved outside the inner rod 301, one end of the spring 304 is fixedly arranged on the outer side surface of the frame 10, and the other end of the spring 301 is fixedly arranged at one end of the outer rod 303 with an end hole 3032.

Since the relative positions of the inner rod 301 and the outer rod 303 can be changed by the elastic force of the spring 304, the length of the support leg 30 can be changed.

Because the length of the supporting foot 30 is changed elastically, when the submersible pump 02 works, the supporting foot 30 is driven to be frequently lengthened or shortened (reciprocating motion), the rack 10 can swing in the radial direction of the shaft 00, so a rope tied on the rack 10 can swing in the radial direction of the shaft 00, the rope and the inner wall of the shaft 00 rub at high frequency when the submersible pump 02 works, the rope is easy to break seriously, even the submersible pump 02 falls to the bottom of the well, and manual labor is needed for fishing. Because the diameters of different wellholes of the same water well have a little difference, the length of the supporting leg 30 can be elastically changed when the submersible pump 02 goes into the well or goes out of the well; however, the support feet 30 are of a fixed length (rigid) when the submersible pump 02 is in operation.

The first solution is:

the outer rod 303 further includes a positioning hole 3033,

the positioning hole 3033 comprises a counter bore 30331 and a bottom hole 30332;

the bottom hole 30332 is arranged on the circular side surface below the outer rod 303, the axis of the bottom hole is vertical, the counter bore 30331 is arranged on the circular side surface of the bore 3031, and the counter bore 30331 and the bottom hole 30332 are coaxial and communicated;

the positioning holes 303 are arranged in parallel, and the size of the position closest to the two adjacent positioning holes 303 is the thickness of the baffle plate 302.

The submersible pump downhole auxiliary equipment also comprises a positioning assembly 50,

the positioning assembly 50 comprises a countersunk head 51, a bottom rod 52 and a floating ball 53,

the lower end of the countersunk head 51 is fixedly connected with the upper end of the low rod 52, and the lower end of the low rod 52 is fixedly provided with a floating ball 53;

the bottom rod 52 is slidably sleeved in the bottom hole 30332, the diameter of the counter sink 51 is larger than that of the bottom hole 30332 but smaller than that of the counter sink 30331, so that the positioning assembly 50 cannot slide out of the positioning hole 3033, and the buoyancy of the floating ball 53 in water is completely larger than the sum of the weights of the floating ball 53, the bottom rod 52 and the counter sink 51.

The principle is as follows: when the submersible pump 02 is manually fed into a well and completely enters water, the floating ball 53 receives the buoyancy of the water, so that the positioning assembly 50 rises, and the two floating positioning assemblies 50 can position the baffle plate 302, namely, the supporting leg 30 is not lengthened or shortened due to the vibration of the submersible pump 02, namely, the supporting leg 30 is changed from elasticity to rigidity; the rope tied to the frame 10 is not shaken by the vibration of the submersible pump 02.

When the submersible pump 02 lifts the water surface, the floating ball 53 threshes the water surface without buoyancy, the counter sink 51 is positioned in the counter sink hole 30331, and the supporting legs 30 can change according to the diameter of the shaft 00, so that the directional roller 40 is always contacted with the shaft 00.

The second solution is:

the outer rod 303 further comprises a circular table hole 3034, the circular table hole 3034 is arranged on the cylindrical lower side surface of the outer rod 303, the axis of the circular table hole 3034 is vertical, the large-radius end of the circular table hole 3034 is adjacent to the hole cavity 3031 of the outer rod 303, the circular table hole 3034 is communicated with the hole cavity 3031, and the circular table hole 3034 is adjacent to one end, fixed to the directional roller 40, of the outer rod 303.

The submersible pump downhole auxiliary equipment further comprises a water column 60, a crank rod 70 and a water sac 80,

the water column 60 comprises a water inlet rod 61, a circular truncated cone column 62, a first water inlet hole 63 and a second water inlet hole 64,

the upper end of the water inlet rod 61 is provided with an arc surface with the same radius as the bore 3031, the lower end of the water inlet rod 61 is fixed at the small end of the circular table column 62, the first water inlet hole 63 extends from the upper end of the water inlet rod 31 to the circular table column 62, one end of the second water inlet hole 64 is communicated with the lower end of the first water inlet hole 63, the other end of the second water inlet hole 64 is opened on the conical surface of the circular table column 62, and the circular table column 62 is circumferentially provided with a plurality of second water inlet holes 64 around the axis thereof;

the water inlet column 61 is sleeved in the circular truncated cone hole 3034 in a sliding mode;

the turning rod 70 comprises a vertical plate 71 and a transverse plate 72, the upper side of the vertical plate 71 is fixed on the lower part of the cylindrical side surface of the outer rod 303, the transverse plate 72 is fixedly arranged on the vertical plate 71, and the transverse plate 72 is horizontal and is positioned right below the circular truncated cone hole 3034;

the water bag 80 comprises an elastic bag 81 and an elastic bag tube 82, the elastic bag 81 is hollow and elastic, the elastic bag 81 is communicated with the elastic bag tube 82, and the free end of the elastic bag tube 82 is communicated with a water outlet of the submersible pump 02;

the upper side of the elastic bag 81 is fixed at the large end of the circular table column 62, and the lower side of the elastic bag 81 is fixed on the transverse plate 72.

The principle is as follows: when the submersible pump 02 is completely submerged, no water exists in the elastic water bag 81, well water sequentially passes through the second water inlet hole 64 and the first water inlet hole 63, enters a cavity formed by the cavity 3031 and the side, close to the circular truncated cone hole 3034, of the baffle plate 302 and is fully filled, the submersible pump 02 is started, the submersible pump 02 flushes water in the elastic water bag 81 through the elastic bag pipe 82 until the circular truncated cone column 62 is completely and tightly attached to the circular truncated cone hole 3034, at the moment, the upper end of the first water inlet hole 63 is tightly attached to the cavity 3031, namely, the first water inlet hole 63 is in a blocking state, water in the cavity 3031 cannot enter or exit, so that the length of the supporting leg 30 cannot be changed, namely, the supporting leg 30 is changed from elasticity to rigidity; the rope tied to the frame 10 is not shaken by the vibration of the submersible pump 02.

When the submersible pump 02 stops working, the water in the elastic bag 81 is squeezed out by the contraction elastic force of the elastic bag 81, the water column 60 descends, the upper end of the first water inlet 63 is not in contact with the inner side of the cavity 3031, the first water inlet 63 and the second water inlet 64 are unblocked, the water in the cavity 3031 partially flows out through the first water inlet 63 and the second water inlet 64, and the length of the supporting leg 30 is adjusted by the spring 304.

The technical scheme in the embodiment of the application at least has the following technical effects or advantages:

when the submersible pump 02 enters the well, the directional rollers 40 on the rack 10 are supported on the inner wall of the shaft 00, so that the rack 10 cannot shake along with the rope in the radial direction of the shaft 00, and the rack 10 only moves in the vertical direction, thereby preventing the submersible pump 02 from colliding with the shaft 00.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.