Connecting rod assembly capable of being used for rod pump

Abstract

The utility model discloses a connecting rod assembly for a rod pump, which is characterized by comprising a connecting rod, at least one end of the connecting rod is fixedly provided with a conductive male joint or a conductive female joint, the connecting rod comprises an inner pipe and an outer pipe, the outer pipe is sleeved outside the inner pipe, and a gap is arranged between the inner pipe and the outer pipe. The conductive male connector and the conductive female connector are electrically connected with wires, the wires are located in the gap, the conductive male connector on one connecting rod and the conductive female connector on the adjacent connecting rod are in butt joint and fixed to achieve electric conduction, and the inner pipe is used for water or air supply. The connecting rod assembly has the advantages that a traditional connecting rod in a rod type pump is replaced with the connecting rod assembly, so that a power-on wire between a water pump and a power source can be separated from pumped liquid, water and electricity are separated and do not interfere with each other, the wire is prevented from being corroded by the liquid, and potential safety hazards caused by electric leakage of the wire are avoided; in addition, the connecting rod assembly can be lengthened in a butt joint mode according to requirements so as to meet the length requirements of the rod pump in different using places. In addition, the connecting rod assembly can also be applied to equipment such as a wall grinding machine to be used as a middle connecting assembly.

Description

Technical Field

[0001] This utility model relates to intermediate connecting parts for tool products, and more particularly to a connecting rod assembly that can be used in rod pumps. Background Technology

[0002] Rod pumps are a type of portable water pump that has emerged in recent years. They can be used to pump clean water, sewage, and oily liquids in yards and outdoor areas, and are easy to transport. Existing rod pumps are generally straight rod-shaped, with the pump itself located at the lower end of the connecting rod, and the power supply and outlet at the upper end. The power cable connecting the pump and the power source passes through the connecting rod. However, since the liquid being pumped also passes through the connecting rod, the cable is submerged in the liquid during operation. When the liquid being pumped contains corrosive substances, prolonged immersion in the liquid can easily lead to corrosion, damage, or electrical leakage of the cable. Furthermore, damaged cables can cause the pump to burn out or result in electric shock due to leakage. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a connecting rod assembly for rod pumps that can be used for water and electricity separation and can be lengthened according to actual needs.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a connecting rod assembly that can be used in a rod pump includes a connecting rod, at least one end of which is fixedly provided with a conductive male connector or a conductive female connector. The connecting rod includes an inner tube and an outer tube, the outer tube is sleeved outside the inner tube, and there is a gap between the inner tube and the outer tube. Both the conductive male connector and the conductive female connector are electrically connected to wires, the wires are located in the gap, and the conductive male connector on one connecting rod is connected and fixed to the conductive female connector on its adjacent connecting rod to achieve conductivity. The inner tube is used for water or air passage.

[0005] Furthermore, a conductive male connector is fixedly provided at one end of the connecting rod, and a conductive female connector is fixedly provided at the other end. The conductive male connector and the conductive female connector located at both ends of the same connecting rod are electrically connected by a wire.

[0006] Furthermore, the conductive male connector includes a first connector and at least two conductive contacts. The first connector is simultaneously sealed and fixed to one end of both the inner tube and the outer tube. The first connector is provided with a first through hole, which communicates with the inner tube. The conductive contacts are fixed at intervals on the first connector. The wire passes through the first connector and is electrically connected to the conductive contacts. One end of the outer tube is rotatably connected to or fixed with a first connecting sleeve, which is sealed to the first connector.

[0007] Furthermore, the end of the conductive contact extends out of the first connector, or the side wall of the first connector is provided with at least two side holes that correspond one-to-one with the position of the conductive contact, and the end of the conductive contact is embedded in the side hole.

[0008] Furthermore, the conductive female connector includes a second connector and at least two conductive rings. The second connector is sealed and fixed to the other end of the inner tube. The second connector has a second through hole that communicates with the inner tube. The number of conductive rings is equal to the number of conductive contacts. The conductive rings are sequentially sleeved on the second connector, and an insulating ring is provided between adjacent conductive rings. Conductive connecting feet are fixedly provided on the conductive rings. A pressure sleeve is sleeved on the second connector. The pressure sleeve abuts against the outermost conductive ring, and the pressure sleeve is sealed and fixed to the other end of the outer tube and the second connector. The wire passes through the pressure sleeve and is electrically connected to the conductive connecting feet. The other end of the outer tube is rotatably connected to or fixed with a second connecting sleeve, and the second connecting sleeve is sealed to the outer tube.

[0009] Furthermore, when the first connector on a connecting rod is sealed and connected to the second connector on an adjacent connecting rod, the first through hole is connected to the second through hole, the ends of the conductive contact pieces are in contact with the conductive rings in a corresponding manner, and the first connecting sleeve and the second connecting sleeve are screwed together and fixed.

[0010] Furthermore, the outer surface of the side wall of the second connector is provided with multiple positioning grooves, and the conductive connecting feet are embedded in the positioning grooves one by one to prevent the conductive ring from rotating.

[0011] Furthermore, an insulating foot is integrally provided on the insulating ring. The insulating foot is embedded in the positioning groove and presses against the conductive connecting foot to prevent the conductive connecting foot from lifting up.

[0012] Furthermore, a limiting ring is fixedly sleeved on the other end of the outer tube, and the second connecting sleeve is sleeved outside the limiting ring to prevent the second connecting sleeve from detaching from the outer tube.

[0013] Furthermore, the number of conductive contacts is three.

[0014] Compared with existing technologies, the advantages of this invention are that by replacing the traditional connecting rod in a rod pump with the connecting rod assembly, the power supply wires between the pump and the power source are separated from the pumped liquid, achieving water and electricity separation and preventing interference. This avoids the safety hazards caused by liquid corrosion of the wires and leakage. Furthermore, the connecting rod assembly can be extended as needed to meet the length requirements of rod pumps in different applications. In addition, this connecting rod assembly can also be used as an intermediate connecting component in equipment such as wall grinders. Attached Figure Description

[0015] Figure 1 This is a schematic diagram illustrating the application of this utility model in a rod pump;

[0016] Figure 2 This is a schematic diagram of the overall external structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the connection between the conductive male connector and the conductive female connector of this utility model.

[0018] Figure 4 This is a schematic diagram showing the state of the conductive male connector and conductive female connector after they have been separated according to this utility model.

[0019] Figure 5 This is a schematic diagram of the internal structure of the conductive female connector of this utility model after the pressure sleeve is removed.

[0020] Figure 6 This is an exploded view of the conductive female connector of this utility model.

[0021] Figure 7 This is a cross-sectional view of the conductive male connector and conductive female connector of this utility model after they are connected. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0023] like Figure 1-7 As shown, a connecting rod assembly for a rod pump includes a connecting rod 1. One end of the connecting rod 1 is fixedly provided with a conductive male connector 2, and the other end is fixedly provided with a conductive female connector 3. The connecting rod 1 includes an inner tube 11 and an outer tube 12. The inner tube 11 is used for water or air passage, and the outer tube 12 is sleeved outside the inner tube 11, with a gap 13 between the inner tube 11 and the outer tube 12. The conductive male connector 2 and the conductive female connector 3 of the same connecting rod 1 are electrically connected by a wire 14, which is located within the gap 13. Specifically:

[0024] The conductive male connector 2 includes a first connector 21 and three conductive contacts 22. The first connector 21 is simultaneously sealed and fixed to one end of the inner tube 11 and the outer tube 12 by existing methods such as glue or ultrasonic waves. The first connector 21 is provided with a first through hole 23, which is connected to the inner tube 11. The conductive contacts 22 are fixed to the first connector 21 at intervals. The side wall of the first connector 21 is provided with three side holes 24 that correspond one-to-one with the positions of the conductive contacts 22. The ends of the conductive contacts 22 are embedded in the side holes 24, so that the conductive contacts 22 are fixed to the first connector 21 stably and reliably. Alternatively, the ends of the conductive contacts 22 can be directly extended out of the first connector 21. The wire 14 passes through the first connector 21 and is fixedly connected to the conductive contacts 22. One end of the outer tube 12 is fixed with a first connecting sleeve 25, and the first connecting sleeve 25 is sealed to the first connector 21 by a sealing ring.

[0025] The conductive female connector 3 includes a second connector 31 and three conductive rings 32. The second connector 31 is sealed and fixed to the other end of the inner tube 11 by existing methods such as glue or ultrasonic waves. The second connector 31 is provided with a second through hole 33, which communicates with the inner tube 11. The conductive rings 32 are sequentially sleeved on the second connector 31, and conductive connecting feet 34 are fixedly provided on the conductive rings 32. The outer surface of the side wall of the second connector 31 is provided with multiple positioning grooves 35. The conductive connecting feet 34 are embedded in the positioning grooves 35 one by one to prevent the conductive rings 32 from rotating and causing the wires 14 to become entangled. An insulating ring 36 is provided between the two conductive rings 32. A pressure sleeve 37 is fitted on the second connector 31. The pressure sleeve 37 abuts against the outermost conductive ring 32. The pressure sleeve 37 is sealed and fixed to the other end of the outer tube 12 and the second connector 31. The wire 14 passes through the pressure sleeve 37 and is fixedly connected to the conductive connecting foot 34. The other end of the outer tube 12 is rotatably connected to the second connecting sleeve 38. The second connecting sleeve 38 is sealed and fitted to the outer tube 12. A limiting ring 39 is fixedly fitted on the other end of the outer tube 12. The second connecting sleeve 38 is fitted outside the limiting ring 39 to prevent the second connecting sleeve 38 from detaching from the outer tube 12.

[0026] When the conductive male connector 2 on a connecting rod 1 is connected to the conductive female connector 3 on its adjacent connecting rod 1, the first connector 21 on the connecting rod 1 is sealed and fitted onto the second connector 31 on the adjacent connecting rod 1. The first through hole 23 is connected to the second through hole 33. The ends of the conductive contact pieces 22 are in contact with the conductive rings 32 one by one. The first connecting sleeve 25 and the second connecting sleeve 38 are screwed and fixed, so that the conductive male connector 2 is connected and fixed to the conductive female connector 3 on its adjacent connecting rod 1 and conducts electricity.

[0027] In the above embodiments, the number of conductive contact 22 and conductive ring 32 can be set to 2 according to the number of poles of the power supply on the rod pump; and in order to prevent the conductive connecting foot 34 on the conductive ring 32 from lifting up during assembly, an insulating foot 30 can be integrally provided on the insulating ring 36, the insulating foot 30 is embedded in the positioning groove 35 and presses on the conductive connecting foot 34.

[0028] Alternatively, the first connecting sleeve 25 can be rotatably connected to one end of the outer tube 12, while the second connecting sleeve 38 is fixedly connected to the other end of the outer tube 12. In this case, the limiting ring 39 can be omitted or the limiting ring 39 can be fixed to one end of the outer tube 12. Alternatively, a conductive male connector 2 or a conductive female connector 3 can be fixedly installed only at one end of the connecting rod 1.

[0029] The end of the connecting rod assembly of this utility model without the conductive male connector 2 and conductive female connector 3 is connected to the water pump housing or power supply box of the rod pump, and the fixing method is the same as that of the existing connecting rod; when the two ends of the connecting rod assembly of this utility model are respectively provided with conductive male connector 2 and conductive female connector 3, it is only necessary to provide the corresponding conductive male connector 2 and conductive female connector 3 on the water pump housing and power supply box of the rod pump.

[0030] The scope of protection of this utility model includes, but is not limited to, the above embodiments. The scope of protection is defined by the claims. Any substitutions, modifications, or improvements to this technology that are easily conceived by those skilled in the art shall fall within the scope of protection of this utility model.

Claims

1. A connecting rod assembly for use in rod pumps, characterized in that... The device includes a connecting rod, at least one end of which is fixedly provided with a conductive male or conductive female connector. The connecting rod includes an inner tube and an outer tube, with the outer tube sleeved over the inner tube and a gap between the inner tube and the outer tube. Both the conductive male and conductive female connectors are electrically connected to wires located within the gap. The conductive male connector on one connecting rod is mated and fixed to the conductive female connector on its adjacent connecting rod, achieving electrical conductivity. The inner tube is used for water or air circulation.

2. A connecting rod assembly for use in a rod pump as described in claim 1, characterized in that: One end of the connecting rod is fixedly provided with a conductive male connector and the other end is fixedly provided with a conductive female connector. The conductive male connector and the conductive female connector located at both ends of the same connecting rod are electrically connected by a wire.

3. A connecting rod assembly for use in a rod pump as described in claim 1 or 2, characterized in that: The conductive male connector includes a first connector and at least two conductive contacts. The first connector is simultaneously sealed and fixed to one end of both the inner tube and the outer tube. The first connector has a first through hole that communicates with the inner tube. The conductive contacts are fixed at intervals on the first connector. The wire passes through the first connector and is electrically connected to the conductive contacts. One end of the outer tube is rotatably connected to or fixed with a first connecting sleeve, which is sealed to the first connector.

4. A connecting rod assembly for use in a rod pump as described in claim 3, characterized in that: The end of the conductive contact extends out of the first connector, or the side wall of the first connector is provided with at least two side holes that correspond one-to-one with the position of the conductive contact, and the end of the conductive contact is embedded in the side hole.

5. A connecting rod assembly for use in a rod pump as described in claim 3, characterized in that: The conductive female connector includes a second connector and at least two conductive rings. The second connector is sealed and fixed to the other end of the inner tube. The second connector has a second through hole that communicates with the inner tube. The number of conductive rings is equal to the number of conductive contacts. The conductive rings are sequentially sleeved on the second connector, and an insulating ring is provided between adjacent conductive rings. Conductive connecting feet are fixedly provided on the conductive rings. A pressure sleeve is sleeved on the second connector. The pressure sleeve abuts against the outermost conductive ring, and the pressure sleeve is sealed and fixed to the other end of the outer tube and the second connector. The wire passes through the pressure sleeve and is electrically connected to the conductive connecting feet. The other end of the outer tube is rotatably connected to or fixed with a second connecting sleeve, and the second connecting sleeve is sealed to the outer tube.

6. A connecting rod assembly for use in a rod pump as described in claim 5, characterized in that: When the first connector on a connecting rod is sealed and connected to the second connector on an adjacent connecting rod, the first through hole and the second through hole are connected, the ends of the conductive contact pieces are in contact with the conductive rings in a corresponding manner, and the first connecting sleeve and the second connecting sleeve are screwed together and fixed.

7. A connecting rod assembly for use in a rod pump as described in claim 5, characterized in that: The outer surface of the side wall of the second connector is provided with multiple positioning grooves, and the conductive connecting feet are embedded in the positioning grooves one by one to prevent the conductive ring from rotating.

8. A connecting rod assembly for use in a rod pump as described in claim 7, characterized in that: An insulating foot is integrally provided on the insulating ring. The insulating foot is embedded in the positioning groove and presses against the conductive connecting foot to prevent the conductive connecting foot from lifting up.

9. A connecting rod assembly for use in a rod pump as described in claim 5, characterized in that: A limiting ring is fixedly sleeved on the other end of the outer tube, and the second connecting sleeve is sleeved outside the limiting ring to prevent the second connecting sleeve from detaching from the outer tube.

10. A connecting rod assembly for use in a rod pump as described in claim 3, characterized in that: The number of conductive contacts is three.

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