Protective shell for outer wall of water pump

Abstract

The utility model discloses a protective shell for the outer wall of a water pump, and relates to the technical field of water pump protection. The protective shell on the outer wall of the water pump comprises a motor, a pump cavity formed in the top of the motor and a water outlet pipe communicated with the top of the pump cavity, the protective shell is slidably arranged on the outer walls of the motor and the pump cavity, and a plurality of telescopic rods capable of horizontally extending outwards are fixedly arranged on the outer wall of the protective shell; rollers matched with the well wall are arranged at the tail ends of the multiple telescopic rods, an arc-shaped connecting plate is fixedly arranged between every two adjacent telescopic rods, and a floating ball is fixedly arranged on each arc-shaped connecting plate; through cooperation of the protective shell, the telescopic rod and the rolling wheel, the problem that the water pump collides or rubs with the well wall when the water pump is taken from a water well is solved, and the problem that a pump cavity and a motor are damaged due to collision or friction is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of water pump protection, in particular to a protective shell for the outer wall of a water pump. Background Art

[0002] A water pump is a machine that transports liquids or increases the pressure of liquids. It transfers the mechanical energy of the prime mover or other external energy to the liquid to increase the energy of the liquid. It is mainly used to transport liquids including water, oil, acid and alkali liquids, emulsions, suspensions and liquid metals. It can also transport liquids, gas mixtures and liquids containing suspended solids. The technical parameters of water pump performance include flow rate, suction head, head, shaft power, water power, efficiency, etc. According to different working principles, it can be divided into positive displacement water pumps, vane pumps and other types. Positive displacement pumps use the change of their studio volume to transfer energy; vane pumps use the interaction between rotating blades and water to transfer energy. There are centrifugal pumps, axial flow pumps and mixed flow pumps.

[0003] Since the water pump needs to be put into the well when it is used, when the water pump is replaced or fails, it needs to be taken out of the well through the driving equipment at the wellhead. During the process of taking the water pump out of the well, the edge of the water pump is likely to collide and rub against the well wall. When the edge of the water pump rubs against the well wall, the weight of the driving equipment driving the water pump is increased, making it inconvenient to take the water pump out of the well. After the edge of the water pump rubs against the well wall for a long time, it is easy to cause damage to the pump cavity, resulting in water leakage in the pump cavity during operation. In addition, during the process of taking the water pump out of the well, the collision between the pump cavity and the well wall is also likely to cause damage to the pump cavity and the motor. Utility Model Content

[0004] The purpose of the utility model is to provide a protective shell for the outer wall of a water pump. Through the cooperation of the protective shell, the telescopic rod and the roller, the problem of collision or friction between the water pump and the well wall when taking water from the well is solved, thereby avoiding the problem of damage to the pump chamber and the motor caused by collision or friction.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a protective shell for the outer wall of a water pump, comprising a motor and a pump chamber arranged on the top of the motor and a water outlet pipe connected to the top of the pump chamber, a protective shell being slidingly arranged on the outer wall of the motor and the pump chamber, a plurality of telescopic rods that can extend horizontally outward are fixedly arranged on the outer wall of the protective shell, the ends of the plurality of telescopic rods are all provided with rollers that cooperate with the well wall, an arc-shaped connecting plate is fixedly arranged between two adjacent telescopic rods, and a float is fixedly arranged on the arc-shaped connecting plate.

[0006] Preferably, a slideway is fixedly provided on the outer wall between the motor and the pump chamber, and a slider matching the slideway is fixedly provided on the inner wall of the protective shell.

[0007] Preferably, the telescopic rod includes a fixing sleeve, which is fixedly arranged on the outer wall of the protective shell, a sliding rod is slidably arranged in the fixing sleeve, and a fastening bolt is provided on the top of the fixing sleeve that passes through the top wall of the fixing sleeve and cooperates with the sliding rod.

[0008] Preferably, two roller seats are symmetrically provided at the end of the slide rod, a rotating shaft is rotatably provided between the two roller seats, and a roller is fixedly provided on the rotating shaft and located between the two roller seats.

[0009] Preferably, a connecting rod is fixedly provided on the arc-shaped connecting plate and located between the two fixing sleeves, and a floating ball is fixedly provided at the end of the connecting rod.

[0010] A guide groove is formed on the outer wall of the protective shell, and a limiting rod extending outward and cooperating with the guide groove is fixedly provided on the outer wall of the pump cavity.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. In the utility model, a protective shell for protecting the water pump is provided on the outer side between the motor and the pump chamber for vertical sliding, and a plurality of telescopic rods are provided on the outer wall of the protective shell. The ends of the plurality of telescopic rods are provided with rollers for cooperating with the well wall. In the process of taking the water pump out of the well, the protective shell, the telescopic rods and the rollers cooperate to place the water pump in the middle part of the well, and the water pump does not collide or rub with the well wall, thereby saving gravity when driving the water pump through the driving device, and solving the problem of collision or friction between the water pump and the well wall when taking the water pump out of the well, thereby avoiding the problem of damage to the pump chamber and the motor due to collision or friction.

[0013] 2. In the present invention, a float is provided between every two adjacent telescopic rods. The buoyancy of the multiple floats is greater than the total weight of the protective shell, the slider and the structure on the outer wall of the protective shell. When the water pump comes into contact with the well water, the buoyancy of the multiple floats drives the protective shell, the slider and the structure on the outer wall of the protective shell to move upward. After the protective shell moves upward, it will not affect the water inlet of the water pump when the water pump is working. When the water pump is taken out of the well, the protective shell is separated from the well water, and the buoyancy of the float is cancelled. With the help of the gravity of the protective shell and the structure on the outer wall of the protective shell, the protective shell is moved downward. After the protective shell moves downward, the water pump is doubly protected. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 For this utility model Figure 1 Schematic diagram of the local decomposition structure;

[0016] Figure 3 For this utility model Figure 2 Schematic diagram of the local decomposition structure;

[0017] Figure 4 For this utility model Figure 3 Schematic diagram of the local structure;

[0018] Figure 5 For this utility model Figure 4 Schematic diagram of the local structure;

[0019] Figure 6 For this utility model Figure 5 Schematic diagram of the local explosion structure.

[0020] In the picture:

[0021] 1-motor, 2-pump chamber, 3-water outlet pipe, 4-protective shell, 5-slide, 6-slider, 7-guide groove, 8-limit rod, 9-telescopic rod, 91-fixing sleeve, 92-slide rod, 10-fastening bolt, 11-roller seat, 12-rotating shaft, 13-roller, 14-arc connecting plate, 15-connecting rod, 16-float. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] like Figure 1-6 As shown, a protective shell of the outer wall of a water pump includes a motor 1, combined with Figure 2 As shown, the top of the motor 1 is fixedly provided with a pump chamber 2 that matches the motor 1, and the top of the pump chamber 2 is fixedly provided with a water outlet pipe 3 that is connected to the pump chamber 2. Figure 1 or Figure 2 As shown, a protective shell 4 is vertically slidably provided on the outer wall of the motor 1 and the pump chamber 2. Furthermore, a slide 5 is fixedly provided on the outer wall between the motor 1 and the pump chamber 2, and a slider 6 cooperating with the slide 5 is fixedly provided on the inner wall of the protective shell 4. Figure 1 、 Figure 2 and Figure 3 As shown, a guide groove 7 is vertically penetrated on the outer wall of the protective shell 4 , and a limiting rod 8 extending outward and cooperating with the guide groove 7 is fixedly provided on the outer wall of the pump chamber 2 .

[0024] Specifically in this embodiment, combined with Figure 1 、 Figure 2 and Figure 3As shown, a plurality of telescopic rods 9 capable of extending horizontally outward are fixedly provided on the outer wall of the protective shell 4. Figure 6 As shown, the telescopic rod 9 includes a fixing sleeve 91, which is fixedly arranged on the outer wall of the protective shell 4. A slide rod 92 is slidably arranged in the fixing sleeve 91. A fastening bolt 10 is provided on the top of the fixing sleeve 91 and is matched with the slide rod 92. Figure 6 As shown, two roller seats 11 are symmetrically provided at the end of the slide rod 92 , a rotating shaft 12 is rotatably provided between the two roller seats 11 , and a roller 13 that cooperates with the well wall is fixedly provided on the rotating shaft 12 and located between the two roller seats 11 .

[0025] Preferably, through the cooperation of the protective shell 4, the telescopic rod 9 and the roller 13, the water pump is placed in the middle part of the water well, and the water pump does not collide or rub against the well wall, saving gravity when driving the water pump through the driving device. At the same time, it solves the problem of collision or friction between the water pump and the well wall when taking water from the well, and avoids the problem of damage to the pump chamber 2 and the motor 1 due to collision or friction.

[0026] Specifically in this embodiment, combined with Figure 3 and Figure 4 As shown, an arc-shaped connecting plate 14 is fixedly provided between two adjacent fixed sleeves 91, and a connecting rod 15 is fixedly provided on the arc-shaped connecting plate 14 and between the two fixed sleeves 91. A float 16 is fixedly provided at the end of the connecting rod 15. Preferably, the buoyancy of the multiple floats 16 is greater than the total weight of the protective shell 4, the slider 6 and the structure on the outer wall of the protective shell 4. When the water pump comes into contact with the well water, the buoyancy of the multiple floats 16 drives the protective shell 4, the slider 6 and the structure on the outer wall of the protective shell 4 to move upward. After the protective shell 4 moves upward, it will not affect the water inlet of the water pump when the water pump is working. When the water pump is taken out of the well, the protective shell 4 is separated from the well water, and the buoyancy of the float 16 is cancelled. With the help of the gravity of the protective shell 4 and the structure on the outer wall of the protective shell 4, the protective shell 4 is moved downward, and the protective shell 4 is doubly protected after it moves downward.

[0027] Working principle:

[0028] When in use, first adjust the outward extension length of the telescopic rod 9 according to the diameter of the wellhead, so that the roller 13 at the end of the telescopic rod 9 stops when it contacts the well wall, and then fix the adjusted telescopic rod 9 by adjusting the fastening bolt 10. Secondly, move the water pump as a whole to the wellhead, and control the water pump, protective shell 4 and the structure on the outer wall of the protective shell 4 to move downward through the driving equipment arranged at the wellhead. When the water pump moves downward until it contacts the well water, the float 16 cooperates with the well water and drives the protective shell 4 to slide upward through the buoyancy of the float 16. After the protective shell 4 slides upward, the water inlet of the water pump is exposed, thereby avoiding affecting the working efficiency of the water pump due to the obstruction of the protective shell 4.

[0029] When the water pump, the protective shell 4 and the structure on the outer wall of the protective shell 4 are driven upward by the driving device, the upward movement process causes the water pump to be in the middle position of the wellhead through the cooperation of the telescopic rod 9 and the roller 13, thereby preventing the water pump from rubbing or colliding with the well wall. When the water pump is out of the well water, the cooperation between the float 16 and the well water is cancelled, and the protective shell 4 and the structure on the outer wall of the protective shell 4 slide downward due to gravity. When the protective shell 4 slides downward to the maximum limit, it stops and completes the double protection of the water pump.

[0030] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A protective shell for the outer wall of a water pump, comprising a motor (1), a pump chamber (2) arranged on the top of the motor (1), and a water outlet pipe (3) connected to the top of the pump chamber (2), characterized in that: A protective shell (4) is slidably provided on the outer wall of the motor (1) and the pump chamber (2); a plurality of telescopic rods (9) capable of extending horizontally outward are fixedly provided on the outer wall of the protective shell (4); rollers (13) cooperating with the well wall are provided at the ends of the plurality of telescopic rods (9); an arc-shaped connecting plate (14) is fixedly provided between two adjacent telescopic rods (9); and a floating ball (16) is fixedly provided on the arc-shaped connecting plate (14).

2. The protective shell for the outer wall of a water pump according to claim 1, characterized in that: A slideway (5) is fixedly provided on the outer wall between the motor (1) and the pump chamber (2), and a slider (6) cooperating with the slideway (5) is fixedly provided on the inner wall of the protective shell (4).

3. The protective shell for the outer wall of a water pump according to claim 1, characterized in that: The telescopic rod (9) comprises a fixing sleeve (91), the fixing sleeve (91) being fixedly arranged on the outer wall of the protective shell (4), a sliding rod (92) being slidably arranged in the fixing sleeve (91), and a fastening bolt (10) penetrating the top wall of the fixing sleeve (91) and cooperating with the sliding rod (92) is arranged on the top of the fixing sleeve (91).

4. The protective shell for the outer wall of a water pump according to claim 3, characterized in that: Two roller seats (11) are symmetrically arranged at the end of the slide rod (92), a rotating shaft (12) is rotatably arranged between the two roller seats (11), and a roller (13) is fixedly arranged on the rotating shaft (12) and located between the two roller seats (11).

5. The protective shell for the outer wall of a water pump according to claim 4, characterized in that: A connecting rod (15) is fixedly provided on the arc-shaped connecting plate (14) and located between the two fixing sleeves (91), and a floating ball (16) is fixedly provided at the end of the connecting rod (15).

6. The protective shell for the outer wall of a water pump according to claim 1, characterized in that: A guide groove (7) is provided through the outer wall of the protective shell (4), and a limiting rod (8) extending outward and cooperating with the guide groove (7) is fixedly provided on the outer wall of the pump chamber (2).

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