Submersible pump with cable anti-pulling protection function

Abstract

This utility model discloses a submersible pump with cable anti-pull protection function. This utility model relates to the field of submersible pump technology and includes a pump body and a cable. The pump body is provided with a cable outlet box. The cable includes a slack portion connected to the motor end inside the pump body, and the slack portion extends out of the cable outlet box and connects to a tensioning portion. The top of the tensioning portion is connected to a connecting portion, and the connecting portion is connected to a power supply end. The top of the cable outlet box is provided with a receiving tube, and the inner wall of the receiving tube is provided with a sealing component wrapped around the tensioning portion. By keeping the slack portion of the cable inside the receiving tube and shielded by the sealing component above, the slack portion of the cable is prevented from contacting the external water, thus preventing the slack portion of the cable from being pulled due to underwater movement. A fixing component secures the top and bottom ends of the tensioning portion extending out of the sealing component, ensuring that the ends of the tensioning portion extending out of the sealing component also remain taut.

Description

Technical Field

[0001] This utility model relates to the field of submersible pump technology, specifically a submersible pump with cable pull protection function. Background Technology

[0002] Submersible pumps are important equipment for deep well water extraction. When in use, the entire unit is submerged in water to extract groundwater to the surface. During pumping operations, the vibration of the submersible pump and other factors in the pumping environment can easily cause the cable connected to the pump body motor to sway, which can easily pull on the connection end of the pump body motor, thus creating a safety hazard.

[0003] Patent number CN202022244822.8, entitled "A Submersible Pump with Filtering Function", describes a pump that gradually increases the relative space between a movable arc plate and a fixed arc plate, leaving sufficient distance, and then allows the end of a cable to move through the space between the two plates. At the same time, there is a slack cable at the connection point between the two plates to prevent the cable from being pulled too straight and loosening. However, the slack cable between the clamping mechanism and the connection point can still be pulled at the connection point due to underwater shaking. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a submersible pump with cable pull protection, which solves the problems existing in the prior art.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a submersible pump with cable anti-pull protection function, including a pump body and a cable, wherein the pump body is provided with a cable outlet box; The cable includes a slack section connected to the motor end inside the pump body, and the slack section extends out of the cable box to connect to the tension section. The top of the tension section is connected to the connecting section, and the connecting section is connected to the power supply end. The top of the outlet box is provided with a storage tube, and the inner wall of the storage tube is provided with a sealing component that wraps around the tensioning part. The storage tube is also provided with a fixing component for fixing the top and bottom ends of the tensioning part.

[0006] Preferably, the sealing assembly includes an installation cylinder that fits and connects to the storage tube, and the installation cylinder is equipped with a waterproof sealing ring that contacts both the storage tube and the tensioning part.

[0007] Preferably, the sealing assembly further includes a protruding rod disposed at the bottom of the mounting cylinder.

[0008] Preferably, the fixing component includes two movable blocks and two mounting blocks disposed on the inner wall of the storage tube. Both the mounting blocks and the movable blocks are provided with rubber pads wrapped around the tensioning part. The upper and lower sets of rubber pads are respectively wrapped around the top and bottom ends of the tensioning part. A screw and a guide rod pass through the storage tube, and the screw is connected to the top movable block through a bearing. The guide rod is connected to the top movable block. An installation box is provided on the storage tube, and an electric telescopic rod is provided inside the installation box. The output end of the electric telescopic rod is connected to the bottom movable block.

[0009] Preferably, the bottom of the mounting cylinder contacts the bottom mounting block and the movable block, and the bottom mounting block is provided with a positioning rod that is inserted into the mounting cylinder.

[0010] Preferably, a limit block is provided on the output end of the electric telescopic rod, and the limit block extends laterally through the protruding rod.

[0011] This invention provides a submersible pump with cable pull protection. Compared with the prior art, it has the following advantages: 1. This submersible pump with cable anti-pull protection function can prevent the slack part of the cable from contacting the external water body by keeping the slack part of the cable inside the storage tube and blocking it with the sealing component above, so that the slack part of the cable will not be pulled due to underwater shaking.

[0012] 2. This submersible pump with cable pull protection function uses a fixing component to fix the top and bottom ends of the tensioning part extending from the sealing component, ensuring that both ends of the tensioning part extending from the sealing component are also kept in a tensioned state. On the one hand, when the connection part shakes, the tensioning part will not cause the slack part to shake because it is tightened. On the other hand, keeping both the top and bottom tight can also keep the tensioning part in contact with the waterproof sealing ring in a vertical state, thereby better ensuring the sealing effect and preventing water ingress. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional schematic diagram of the storage tube, sealing component, and fixing component of this utility model; Figure 3 This utility model Figure 1 A schematic diagram at point A in the middle; Figure 4 This utility model Figure 2 A schematic diagram at point B in the middle.

[0014] In the diagram: 1. Pump body; 2. Terminal box; 3. Cable; 31. Relaxation part; 32. Connection part; 33. Tensioning part; 4. Storage tube; 5. Mounting cylinder; 6. Waterproof sealing ring; 7. Mounting block; 8. Movable block; 9. Rubber pad; 10. Screw; 11. Guide rod; 12. Mounting box; 13. Electric telescopic rod; 14. Positioning rod; 15. Protruding rod; 16. Limiting block. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] See Figures 1-4 This utility model provides the following two technical solutions: First implementation: A submersible pump with cable pull protection function, including pump body 1 and cable 3, with a cable outlet box 2 provided on pump body 1. The cable 3 includes a slack portion 31 connected to the motor end inside the pump body 1, and the slack portion 31 extends out of the cable box 2 and connects to the tension portion 33. The top of the tension portion 33 is connected to the connecting portion 32, and the connecting portion 32 is connected to the power supply end. The end of the connecting portion 32 connected to the power supply end has a fixing structure to prevent loosening caused by shaking. This is prior art and will not be described in detail here. The top of the outlet box 2 is provided with a storage tube 4. The inner wall of the storage tube 4 is provided with a sealing component wrapped around the tensioning part 33, which can prevent water from contacting the slack part 31. The storage tube 4 is also provided with a fixing component for fixing the top and bottom ends of the tensioning part 33, which can prevent the slack part 31 from shaking when the connecting part 32 shakes. Moreover, the top and bottom ends of the tensioning part 33 are fixed, which can ensure that the part of the tensioning part 33 in contact with the sealing component can remain vertical, thereby better ensuring the sealing effect.

[0017] The sealing assembly includes a mounting cylinder 5 that fits into the housing tube 4. A waterproof sealing ring 6 is mounted on the mounting cylinder 5, which is in contact with both the housing tube 4 and the tensioning part 33, and is used to seal the tensioning part 33.

[0018] The sealing assembly also includes a protruding rod 15 disposed at the bottom of the mounting cylinder 5.

[0019] The fixing assembly includes two movable blocks 8 and two mounting blocks 7 set on the inner wall of the storage tube 4. Both the mounting blocks 7 and the movable blocks 8 are provided with rubber pads 9 wrapped around the tensioning part 33. The upper and lower sets of rubber pads 9 are respectively wrapped around the top and bottom ends of the tensioning part 33. A screw 10 and a guide rod 11 pass through the storage tube 4. The screw 10 is connected to the top movable block 8 through a bearing, and the guide rod 11 is connected to the top movable block 8. By rotating the screw 10, the top movable block 8 moves through the guide rod 11. The storage tube 4 is provided with a mounting box 12. An electric telescopic rod 13 is provided in the mounting box 12, and the output end of the electric telescopic rod 13 is connected to the bottom movable block 8. The electric telescopic rod 13 drives the bottom movable block 8 to move laterally. The reason for using an electric telescopic rod 13 at the bottom is to prevent water from entering and contacting the relaxation part 31. A battery for powering the electric telescopic rod 13 can also be provided in the mounting box 12. The electric telescopic rod 13 is controlled by remote control technology.

[0020] The bottom of the mounting cylinder 5 contacts the bottom mounting block 7 and the movable block 8, which can support the mounting cylinder 5. The bottom mounting block 7 is provided with a positioning rod 14 that is inserted into the mounting cylinder 5, which can position the mounting cylinder 5.

[0021] The second implementation method differs from the first implementation method in that a limit block 16 is provided on the output end of the electric telescopic rod 13. The limit block 16 extends laterally through the protrusion 15 and can fix the mounting cylinder 5. When it is necessary to replace the mounting cylinder 5 and the waterproof sealing ring 6, the electric telescopic rod 13 can be controlled to extend and retract.

[0022] Furthermore, all content not described in detail in this specification is existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used.

[0023] When the cable 3 is shaken, the connection part 32 of the cable 3 shakes. The tensioning part 33 prevents the slack part 31 of the cable 3 from shaking. The slack part 31 is located below the waterproof sealing ring 6 and inside the storage tube 4, so the slack part 31 will not come into contact with water, thus improving the anti-pull effect.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A submersible pump with cable pull protection function, characterized in that: Includes a pump body (1) and a cable (3), wherein the pump body (1) is provided with a terminal box (2); The cable (3) includes a slack part (31) connected to the motor end inside the pump body (1), and the slack part (31) extends out of the cable box (2) and connects to the tension part (33). The top of the tension part (33) is connected to the connecting part (32), and the connecting part (32) is connected to the power supply end. The top of the outlet box (2) is provided with a storage tube (4), and the inner wall of the storage tube (4) is provided with a sealing component wrapped around the tensioning part (33). The storage tube (4) is also provided with a fixing component for fixing the top and bottom ends of the tensioning part (33).

2. A submersible pump with cable pull protection function according to claim 1, characterized in that: The sealing assembly includes an installation cylinder (5) that fits into the storage tube (4), and a waterproof sealing ring (6) that is in contact with both the storage tube (4) and the tensioning part (33) is installed on the installation cylinder (5).

3. A submersible pump with cable pull protection function according to claim 2, characterized in that: The sealing assembly also includes a protrusion (15) disposed at the bottom of the mounting cylinder (5).

4. A submersible pump with cable pull protection function according to claim 3, characterized in that: The fixing component includes two movable blocks (8) and two mounting blocks (7) set on the inner wall of the storage tube (4). Both the mounting blocks (7) and the movable blocks (8) are provided with rubber pads (9) wrapped around the tensioning part (33). The upper and lower sets of rubber pads (9) are respectively wrapped around the top and bottom ends of the tensioning part (33). A screw (10) and a guide rod (11) pass through the storage tube (4). The screw (10) is connected to the top movable block (8) through a bearing. The guide rod (11) is connected to the top movable block (8). An installation box (12) is provided on the storage tube (4). An electric telescopic rod (13) is provided inside the installation box (12). The output end of the electric telescopic rod (13) is connected to the bottom movable block (8).

5. A submersible pump with cable pull protection function according to claim 4, characterized in that: The bottom of the mounting cylinder (5) is in contact with the bottom mounting block (7) and the movable block (8), and the bottom mounting block (7) is provided with a positioning rod (14) that is inserted into the mounting cylinder (5).

6. A submersible pump with cable pull protection function according to claim 4, characterized in that: A limit block (16) is provided on the output end of the electric telescopic rod (13), and the limit block (16) passes through the protrusion (15) laterally.

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