Protective submersible pump

Abstract

The utility model provides a protective submersible pump, and belongs to the field of pumps. The problem that an existing submersible pump is prone to collision is solved. The protective submersible pump comprises a pump body, a protective device is arranged outside the pump body and is of a cylindrical structure, the protective device comprises a protective shell, a rubber sleeve and a connecting piece, the protective shell and the rubber sleeve are of a concentric circle structure, and the connecting piece is located between the protective shell and the rubber sleeve. A plurality of through holes capable of absorbing impact force energy are evenly distributed in the side wall of the rubber sleeve in the circumferential direction, the connecting piece is of a hollowed-out structure and connected with the protective shell through a plurality of connecting ribs, the pump body is sequentially sleeved with the protective shell, the connecting piece and the rubber sleeve from outside to inside, a plurality of through holes communicated with an internal hollowed-out part are formed in the connecting piece, and the rubber sleeve is connected with the connecting piece. The rubber sleeve is used for reducing impact stress and can be tightly attached to the outer portion of the pump body through the connecting piece and the protective shell. The utility model has the advantage of protection effect.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pump field relates to a submersible pump especially relates to a protective type submersible pump. BACKGROUND

[0002] Submersible pump is the important equipment of deep well water lifting. When using, the whole unit is submerged in water and works, extracts underground water to the ground surface, is the life water, mine rescue, industrial cooling, farmland irrigation, seawater lifting, ship load adjustment, can also be used for fountain landscape, when draining waste slurry tank, needs to use submersible pump.

[0003] The existing submersible pump is mostly directly exposed to work, when the submersible pump is stressed and touches the pool wall or the deep well inner wall, the submersible pump is easily damaged, and the submersible pump is easily damaged. SUMMARY

[0004] The utility model discloses a protective type submersible pump to solve the above problems.

[0005] The utility model discloses a protective type submersible pump, including the pump body, its characterized in that, the pump body outside is provided with the protection device that can be used for the protection of pump body outside, the protection device is set up in the barrel type structure,

[0006] The protection device includes a protective shell, a rubber sleeve for shock absorption, and a connecting piece for improving impact resistance, the protective shell and the rubber sleeve are arranged in a concentric structure, and the connecting piece is located between the protective shell and the rubber sleeve.

[0007] The rubber sleeve side wall is circumferentially distributed with a plurality of through holes that can absorb impact energy.

[0008] The connecting piece is arranged in a hollow structure and connected to the protective shell through a plurality of connecting ribs.

[0009] The protective shell, the connecting piece and the rubber sleeve are sequentially sleeved on the pump body from the outside to the inside, a plurality of through holes are formed in the connecting piece and communicate with the internal hollow part, for reducing impact stress, and the rubber sleeve is tightly attached to the outside of the pump body through the connecting piece and the protective shell.

[0010] In the protective type submersible pump, the protective shell can be made of ABS engineering plastic, and the thickness is 2-3mm.

[0011] In the protective type submersible pump, the connecting piece is fixed in the protective shell through a plurality of connecting ribs, and the protective shell and the connecting piece are arranged in an integral structure.

[0012] Compared with the prior art, the protective submersible pump cooperates through three layers of structure (protective shell + hollow connecting piece + rubber sleeve) to preliminarily absorb external impact force, then disperses stress through the hollow structure and through hole of the connecting piece, and finally further buffers through the through hole of the rubber sleeve, thereby significantly reducing the impact energy transmitted to the pump body. The elastic property of the rubber sleeve can effectively inhibit high-frequency vibration during operation of the submersible pump. Meanwhile, the ABS engineering plastic protective shell has excellent water resistance, salt mist resistance, weak acid / weak alkali resistance, and is suitable for complex underwater environments (such as silt-containing water flow or corrosive medium). The protective shell and the connecting piece are integrally formed to reduce assembly interfaces, improve overall structural strength, and avoid protection failure caused by loose parts. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a three-dimensional structural schematic diagram of the protective submersible pump.

[0014] In the figure, 1 is a pump body; 2 is a protective device; 3 is a protective shell; 4 is a rubber sleeve; 5 is a connecting piece; 6 is a through hole; and 7 is a through hole. DETAILED DESCRIPTION

[0015] The following is a specific embodiment of the utility model and further describes the technical scheme of the utility model in combination with the drawings, but the utility model is not limited to these embodiments.

[0016] As shown in Figure 1 , the protective submersible pump comprises a pump body 1, a protective device 2 arranged outside the pump body 1 for protecting the outside of the pump body 1, the protective device 2 being arranged in a cylindrical structure, the protective device 2 comprising a protective shell 3, a rubber sleeve 4 for shock absorption, and a connecting piece 5 for improving impact resistance, the protective shell 3 and the rubber sleeve 4 being arranged in a concentric structure, the connecting piece 5 being located between the protective shell 3 and the rubber sleeve 4, the rubber sleeve 4 having a plurality of through holes 6 uniformly distributed on the side wall for absorbing impact force energy, the connecting piece 5 being arranged in a hollow structure and connected to the protective shell 3 through a plurality of connecting ribs, wherein the protective shell 3, the connecting piece 5, and the rubber sleeve 4 are sequentially arranged outside the pump body 1, the connecting piece 5 is provided with a plurality of through holes 7 connected to the internal hollow part for reducing impact stress, and the rubber sleeve 4 is tightly attached to the outside of the pump body 1 through the connecting piece 5 and the protective shell 3.

[0017] Through the synergistic effect of the three-layer structure (protective shell 3 + hollow connecting piece 5 + rubber sleeve 4), the external impact force is preliminarily absorbed by the protective shell 3, and then the stress is dispersed through the hollow structure and the through hole 7 of the connecting piece 5, and finally the impact energy is further buffered by the through hole 6 of the rubber sleeve 4, which significantly reduces the impact energy transmitted to the pump body 1. The elastic properties of the rubber sleeve 4 can effectively suppress the high-frequency vibration during the operation of the submersible pump. At the same time, the ABS engineering plastic protective shell 3 has excellent water resistance, salt mist resistance, weak acid / weak base resistance, and is suitable for complex underwater environments (such as silt-containing water flow or corrosive medium). It is not easy to be brittle or cracked during long-term use. The integrally formed protective shell 3 and the connecting piece 5 reduce the assembly interface, improve the overall structural strength, and avoid the failure of protection due to loose parts.

[0018] The protective shell 3 can be made of ABS engineering plastic, and the thickness is 2-3mm. The submersible pump often contacts water, weak acid / weak base medium or humid environment. ABS has good resistance to water, salt mist, oil and weak corrosive liquid (such as diluted acid, alkali), can work stably for a long time. The butadiene component gives ABS excellent toughness and low-temperature impact resistance (still maintains performance below-20°C), can withstand vibration, water pressure impact or accidental collision during operation of the submersible pump. In complex underwater working conditions (such as silt impact or water flow fluctuation), the ABS shell is not easy to be brittle and cracked, protecting the internal parts.

[0019] The connecting piece 5 is fixed inside the protective shell 3 by a plurality of connecting ribs, and the protective shell 3 and the connecting piece 5 are integrally formed.

[0020] The protective shell 3 serves as the first barrier against external hard object collision and water flow impact. The high toughness of ABS material can withstand low temperature (below-20°C) and dynamic load.

[0021] The hollow structure and the through hole 7 of the connecting piece 5 absorb impact energy through local deformation, and at the same time disperse stress to a larger area, avoiding local damage caused by stress concentration.

[0022] The through hole 6 of the rubber sleeve 4 deforms elastically when under pressure, and utilizes the damping properties of rubber to consume vibration energy, further isolating the pump body 1 from external impact.

[0023] The three-layer structure closely fits the pump body 1, forming a synergistic protection, ensuring the stable operation of the submersible pump under complex working conditions such as silt impact, water flow fluctuation or accidental collision.

[0024] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, without deviating from the spirit of the present application or exceeding the scope defined by the appended claims.

[0025] Although the terms are used more frequently herein, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of the present application; it is against the spirit of the present application to interpret them as any kind of additional limitation.

Claims

1. A guard-type submersible pump comprising a pump body (1), characterized in that, The pump body (1) is externally provided with a protective device (2) for protecting the pump body (1) externally, and the protective device (2) is provided in a cylindrical structure; The protective device (2) comprises a protective shell (3), a rubber sleeve (4) for shock absorption, and a connecting piece (5) for improving the impact resistance, and the protective shell (3) and the rubber sleeve (4) are provided in a concentric structure, and the connecting piece (5) is located between the protective shell (3) and the rubber sleeve (4); A plurality of through holes (6) for absorbing impact energy are uniformly distributed on the side wall of the rubber sleeve (4) in a circumferential direction; The connecting piece (5) is provided in a hollow structure and is connected to the protective shell (3) through a plurality of connecting ribs; The protective shell (3), the connecting piece (5) and the rubber sleeve (4) are sequentially sleeved on the pump body (1) from the outside to the inside, a plurality of through holes (7) are formed in the connecting piece (5) and are in communication with the internal hollow part, for reducing the impact stress, and the rubber sleeve (4) is tightly attached to the outside of the pump body (1) through the connecting piece (5) and the protective shell (3).

2. A protected submersible pump according to claim 1, wherein, The protective shell (3) can be made of ABS engineering plastic, and the thickness is 2-3mm.

3. A protected submersible pump according to claim 1, wherein The connecting piece (5) is fixed in the protective shell (3) through a plurality of connecting ribs, and the protective shell (3) and the connecting piece (5) are provided in an integral structure.

Images