Submersible pump motor power supply connecting plug capable of being tightly connected

Abstract

The utility model relates to the technical field of pumps, and discloses a submersible pump motor power supply connecting plug capable of being tightly connected, which comprises a submersible pump, one end of the submersible pump is movably connected with a female head, the submersible pump comprises a submersible pump body, and one end of the submersible pump body is provided with a male head placing groove. The inner wall of the male head containing groove is fixedly connected with a male head, the male head comprises a male head shell, one end of the male head shell is fixedly connected with a plurality of male head connectors, the female head comprises a female head body, and the inner wall of the end, close to the submersible pump body, of the female head body is fixedly connected with a plurality of female head connectors. And the inner wall of the female joint is fixedly connected with a plurality of C-shaped elastic rings. The C-shaped elastic ring is arranged, and the outer wall of the C-shaped elastic ring is slightly smaller than the inner wall of the shell, so that the C-shaped elastic ring is tightly attached to the outer wall of the male connector, the tightness of connection between the male connector and the female connector is improved, looseness between the male connector and the female connector is prevented, and the stability of the submersible pump motor power supply connecting plug is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pumps, in particular to a tightly connected submersible pump motor power plug connector. Background Art

[0002] Submersible pumps are important equipment for deep well water extraction. When in use, the entire unit submerges in water to extract groundwater to the surface. It is used for domestic water, mine rescue, industrial cooling, farmland irrigation, seawater lifting, ship loading, and fountain landscape.

[0003] CN209401902U discloses a power plug connector, including a head end and a tail seat, the head end is provided with a plug pin, the tail seat is provided with a power line routing port, the outer edge of the head end is provided with a plug protrusion, the inner wall of the tail seat is provided with a slot corresponding to the plug protrusion, the tail seat is sleeved on the head end, and the tail seat is rotated until the plug protrusion is inserted into the slot to form a lock. The power plug connector has a simple structure, convenient plugging, reliable locking, a strong sense of integration after assembly, and can be used on a variety of plugs.

[0004] In the prior art, the male and female heads of the submersible pump are fixed by plugging together. Although this method is simple, it is easy to have a loose connection, which may lead to safety hazards such as leakage or poor contact. Therefore, a certain tight matching scheme is required to ensure the firmness of their connection and prevent gaps or looseness during work. For a high-power submersible pump, this docking plug must pass a large current of more than ten to several dozen amperes, so the matching requirements of the male and female heads are strict. When the male and female heads of the existing submersible pump are fixed by plugging together, there is a gap in the plugged interface, which makes it easy for external moisture and impurities to enter, which may seriously cause an electrical short circuit, damage the equipment, affect work efficiency, and even cause a safety accident. Utility Model Content

[0005] The purpose of the utility model is to provide a submersible pump motor power plug connector that can be tightly connected, so as to solve the problem of fixing the male and female plugs proposed in the above background technology. Although this method is simple, it is easy to have loose docking, which leads to safety hazards such as leakage or poor contact. Therefore, a certain tight matching scheme is required to ensure the firmness of their connection and prevent gaps or looseness during work. For a high-power submersible pump, this docking plug must pass a large current of more than ten to dozens of amperes, so the matching requirements of the male and female heads are strict. When the existing submersible pump male and female heads are fixed together, a gap is left in the plugged interface, which makes it easy for external moisture and impurities to enter, which may seriously cause electrical short circuits, damage equipment, affect work efficiency, and even cause safety accidents.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tightly connectable submersible pump motor power plug connector, comprising a submersible pump, one end of which is movably connected to a female connector;

[0007] The submersible pump comprises a submersible pump body, one end of the submersible pump body is provided with a male connector placement groove, and the inner wall of the male connector placement groove is fixedly connected with a male connector;

[0008] The male connector includes a male connector housing, one end of which is fixedly connected to a plurality of male connectors;

[0009] The female head comprises a female head body, a plurality of female head connectors are fixedly connected to the inner wall of one end of the female head body close to the pump body of the submersible pump, and a sealing shell is movably connected to the outer wall of the female head body;

[0010] The female connector comprises a base, one end of the base is fixedly connected to the shell, and one end of the base close to the shell is fixedly connected to a C-shaped elastic ring.

[0011] Preferably, the C-shaped elastic ring is on the inner wall of the outer shell, and the outer wall of the C-shaped elastic ring is slightly smaller than the inner wall of the outer shell.

[0012] Preferably, an outer wall of one side of the female head body close to the female head connector is movably connected to an inner wall of the male head placement groove.

[0013] Preferably, the plurality of shells are movably connected to the outer wall of the male connector via a C-shaped elastic ring on the inner wall.

[0014] Preferably, the female head main body includes a female head external joint, and the outer wall of the female head external joint is respectively fixedly connected with screw connecting blocks on both sides, the end of the female head external joint away from the two screw connecting blocks is fixedly connected with the female head shell, the end of the female head shell away from the female head external joint is fixedly connected with the screw connecting shaft, the end of the screw connecting shaft away from the female head shell is rotatably connected with the main gear, the end of the main gear away from the screw connecting shaft is fixedly connected with the main gear connecting shaft, and the end of the main gear connecting shaft away from the main gear is fixedly connected with the rotating shaft.

[0015] Preferably, the outer walls of the main gear are respectively meshed with secondary gears on both sides, and the inner walls of the two secondary gears are fixedly connected with screw rods. The ends of the two screw rods away from the secondary gears are penetrated by screw rod connecting shafts to the side close to the female external joint and are movably connected to one side of the two screw rod connecting blocks.

[0016] Preferably, the sealing shell includes a sealing shell transmission shell, and transmission blocks are fixedly connected to both sides of the inner wall of the sealing shell transmission shell, and the inner walls of the two transmission blocks are threadedly connected to the outer wall of the screw rod, and the end of the sealing shell transmission shell away from the transmission block is fixedly connected to the sealing shell outer shaft, the inner wall of the sealing shell outer shaft is slidably connected to the outer wall of the female external joint, and the inner wall of the sealing shell outer shaft fits the outer wall of the sealing shell transmission shell.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. By providing a main gear, a sub-gear and a screw rod, the rotating shaft is rotated, the rotating shaft drives the main gear to rotate, the main gear drives the two sub-gears to rotate by meshing, the two sub-gears drive the two screw rods to rotate, the two screw rods drive the two transmission blocks to move by threaded connection, and the two transmission blocks drive the sealing shell transmission shell to move, so that the sealing shell transmission shell fits tightly to the outer wall of the male head placement groove to prevent external moisture and impurities from entering the submersible pump body, and solves the problem that when the existing submersible pump male and female heads are fixed together, there is a gap in the plug-in interface, which makes it easy for external moisture and impurities to enter, which may seriously cause electrical short circuit, damage equipment, affect work efficiency and even cause safety accidents, and improve the sealing and service life of the submersible pump motor power plug connector.

[0019] 2. A C-shaped elastic ring is provided, the C-shaped elastic ring is on the inner wall of the shell, and the outer wall of the C-shaped elastic ring is slightly smaller than the inner wall of the shell, so that the C-shaped elastic ring fits tightly on the outer wall of the male connector, further improving the tightness of the connection between the male and female connectors, preventing looseness between the male and female connectors, and improving the stability of the submersible pump motor power connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic implementation modes and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0021] Figure 1 It is a schematic diagram of the main three-dimensional structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the submersible pump of the utility model;

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the male plug of the utility model;

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the female head of the utility model;

[0025] Figure 5It is a schematic diagram of the three-dimensional structure of the female connector of the utility model;

[0026] Figure 6 This is a schematic diagram of the three-dimensional structure of the female head main body of the utility model;

[0027] Figure 7 It is a schematic diagram of the three-dimensional structure of the sealing shell of the utility model.

[0028] In the figure: 1. submersible pump; 11. submersible pump body; 12. male head placement groove; 13. male head; 131. male head shell; 132. male head connector; 2. female head; 21. female head body; 211. female head outer connector; 212. screw rod connecting block; 213. female head shell; 214. screw rod connecting shaft; 215. screw rod; 216. secondary gear; 217. main gear; 218. rotating shaft; 219. main gear connecting shaft; 22. sealing shell; 221. sealing shell transmission shell; 222. transmission block; 223. sealing shell outer shaft; 23. female head connector; 231. base; 232. shell; 233. C-shaped elastic ring. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figures 1 to 7 The utility model provides a technical solution: a tightly connected submersible pump motor power plug connector, comprising a submersible pump 1, one end of which is movably connected to a female connector 2.

[0031] See also Figure 2 , Figure 3 , Figure 4 , Figure 5The submersible pump 1 includes a submersible pump body 11, a male head placement groove 12 is provided at one end of the submersible pump body 11, a male head 13 is fixedly connected to the inner wall of the male head placement groove 12, the male head 13 includes a male head shell 131, one end of the male head shell 131 is fixedly connected to a plurality of male head connectors 132, the female head 2 includes a female head body 21, a plurality of female head connectors 23 are fixedly connected to the inner wall of one end of the female head body 21 close to the submersible pump body 11, a sealing shell 22 is movably connected to the outer wall of the female head body 21, and the female head connector 23 is fixedly connected to the outer wall of the female head body 21. It includes a base 231, one end of the base 231 is fixedly connected to a shell 232, one end of the base 231 close to the shell 232 is fixedly connected to a C-shaped elastic ring 233, the C-shaped elastic ring 233 is on the inner wall of the shell 232, the outer wall of the C-shaped elastic ring 233 is slightly smaller than the inner wall of the shell 232, the outer wall of the female body 21 close to the female connector 23 is movably connected to the inner wall of the male placement groove 12, and multiple shells 232 are movably connected to the outer wall of the male connector 132 through the C-shaped elastic ring 233 on the inner wall;

[0032] When the male connector 13 needs to be connected to the female connector body 21, first insert the end of the female connector body 21 close to the submersible pump body 11 into the male connector placement groove 12, so that the female connector 23 is aligned with the male connector 132. Due to the presence of the C-shaped elastic ring 233, the outer shell 232 can slide on the outer wall of the male connector 132 and produce a certain elastic deformation, thereby ensuring that the male connector 132 can be smoothly inserted into the female connector 23. When the male connector 132 is fully inserted into the female connector 23, the C-shaped elastic ring 233 returns to its original shape, tightly wrapping the outer wall of the male connector 132 to form a tight connection.

[0033] See also Figure 6 , Figure 7 and Figure 4The female head body 21 includes a female head external joint 211, and the two sides of the outer wall of the female head external joint 211 are respectively fixedly connected with the screw connecting blocks 212, and the end of the female head external joint 211 away from the two screw connecting blocks 212 is fixedly connected with the female head shell 213, and the end of the female head shell 213 away from the female head external joint 211 is fixedly connected with the screw connecting shaft 214, and the end of the screw connecting shaft 214 away from the female head shell 213 is rotatably connected with the main gear 217, and the end of the main gear 217 away from the screw connecting shaft 214 is fixedly connected with the main gear connecting shaft 219, and the end of the main gear connecting shaft 219 away from the main gear 217 is fixedly connected with the rotating shaft 218, and the two sides of the outer wall of the main gear 217 are respectively meshed with the sub-gear 216, and the two sub-gears The inner wall of each of the two screw rods 216 is fixedly connected with a screw rod 215, and one end of each of the two screw rods 215 away from the secondary gear 216 passes through a screw rod connecting shaft 214 to a side close to the female external joint 211 and is movably connected to one side of two screw rod connecting blocks 212. The sealing shell 22 includes a sealing shell transmission shell 221, and transmission blocks 222 are fixedly connected to the inner walls of the sealing shell transmission shell 221 on both sides, and the inner walls of the two transmission blocks 222 are threadedly connected to the outer wall of the screw rod 215. One end of the sealing shell transmission shell 221 away from the transmission block 222 is fixedly connected with a sealing shell outer shaft 223, and the inner wall of the sealing shell outer shaft 223 is slidably connected to the outer wall of the female external joint 211, and the inner wall of the sealing shell outer shaft 223 fits the outer wall of the sealing shell transmission shell 221;

[0034] After the male connector 13 is connected to the female connector body 21, in order to make the sealing shell 22 fit tightly against the outer wall of the female connector body 21 and ensure that the power plug connector of the submersible pump 1 will not be damaged by water due to the influence of the external environment, the user can drive the main gear 217 to rotate by rotating the rotating shaft 218. The rotation of the main gear 217 will drive the two sub-gears 216 to rotate at the same time. Since the sub-gear 216 is fixedly connected to the screw rod 215, the screw rod 215 will also rotate with the rotation of the sub-gear 216. The rotation of the screw rod 215 will drive the transmission block 222 to move in the sealing shell transmission shell 221. Since the transmission block 222 is fixedly connected to the screw rod 215, the screw rod 215 will also rotate with the rotation of the sub-gear 216. The rod 215 is threadedly connected, so the movement of the transmission block 222 will drive the sealing shell transmission shell 221 to move along the outer wall of the female external joint 211. As the sealing shell transmission shell 221 moves, the sealing shell outer shaft 223 will also slide along the outer wall of the female external joint 211 until the inner wall of the sealing shell outer shaft 223 is tightly fitted to the outer wall of the female external joint 211, and the joint between the male head 13 and the female head body 21 is completely sealed. In this way, the sealing shell 22 can be tightly wrapped around the outer wall of the female head body 21, effectively preventing the external environment from affecting the power plug connector of the submersible pump 1, and ensuring the stability and safety of the power plug connector;

[0035] In addition, since the transmission and connection mechanism of the sealing shell 22 is very cleverly designed, the user only needs to simply rotate the rotating shaft 218 to quickly install and remove the sealing shell 22. This not only improves the convenience of use, but also reduces the maintenance cost.

[0036] Working principle: When the device is used, when the male connector 13 needs to be connected to the female connector body 21, first insert the end of the female connector body 21 close to the submersible pump body 11 into the male connector placement groove 12, so that the female connector 23 and the male connector 132 are aligned accordingly. Due to the presence of the C-shaped elastic ring 233, the shell 232 can slide on the outer wall of the male connector 132 and produce a certain elastic deformation, thereby ensuring that the male connector 132 can be smoothly inserted into the female connector 23. When the male connector 132 is fully inserted into the female connector 23, the C-shaped elastic ring 233 returns to its original state, tightly wrapping the outer wall of the male connector 132 to form a tight connection;

[0037] After the male head 13 is connected to the female head body 21, in order to make the sealing shell 22 fit tightly against the outer wall of the female head body 21 and ensure that the power plug connector of the submersible pump 1 will not be damaged by water due to the influence of the external environment, the user can drive the main gear 217 to rotate by rotating the rotating shaft 218. The rotation of the main gear 217 will drive the two sub-gears 216 to rotate at the same time. Since the sub-gear 216 is fixedly connected to the screw rod 215, the screw rod 215 will also rotate with the rotation of the sub-gear 216. The rotation of the screw rod 215 will drive the transmission block 222 to move in the sealing shell transmission shell 221. Since the transmission block 222 is threadedly connected to the screw rod 215, the movement of the transmission block 222 will drive the sealing shell transmission shell 22 1 moves along the outer wall of the female external connector 211, and as the sealing housing transmission housing 221 moves, the sealing housing outer shaft 223 also slides along the outer wall of the female external connector 211 until the inner wall of the sealing housing outer shaft 223 is tightly fitted to the outer wall of the female external connector 211, and the joint between the male connector 13 and the female main body 21 is completely sealed. In this way, the sealing housing 22 can be tightly wrapped around the outer wall of the female main body 21, effectively preventing the external environment from affecting the power plug connector of the submersible pump 1, and ensuring the stability and safety of the power plug connector. In addition, since the transmission and connection mechanism of the sealing housing 22 is very cleverly designed, the user only needs to simply rotate the rotating shaft 218 to achieve the rapid installation and removal of the sealing housing 22. This not only improves the convenience of use, but also reduces the maintenance cost.

[0038] The above is the working process of the whole device, and the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. Although the embodiments of the utility model have been shown and described, it is understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model, and the scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A tightly connectable submersible pump motor power plug connector, comprising a submersible pump (1), characterized in that: One end of the submersible pump (1) is movably connected to a female connector (2); The submersible pump (1) comprises a submersible pump body (11), one end of the submersible pump body (11) is provided with a male head placement groove (12), and the inner wall of the male head placement groove (12) is fixedly connected with a male head (13); The male connector (13) comprises a male connector housing (131), and one end of the male connector housing (131) is fixedly connected to a plurality of male connectors (132); The female head (2) comprises a female head body (21), a plurality of female head connectors (23) are fixedly connected to the inner wall of one end of the female head body (21) close to the submersible pump body (11), and a sealing shell (22) is movably connected to the outer wall of the female head body (21); The female connector (23) comprises a base (231), one end of the base (231) is fixedly connected to a housing (232), and one end of the base (231) close to the housing (232) is fixedly connected to a C-shaped elastic ring (233).

2. The tightly connectable submersible pump motor power plug connector according to claim 1, characterized in that: The C-shaped elastic ring (233) is on the inner wall of the outer shell (232), and the outer wall of the C-shaped elastic ring (233) is slightly smaller than the inner wall of the outer shell (232).

3. The tightly connectable submersible pump motor power plug connector according to claim 1, characterized in that: An outer wall of one side of the female head body (21) close to the female head connector (23) is movably connected to the inner wall of the male head placement groove (12).

4. The tightly connectable submersible pump motor power plug connector according to claim 2, characterized in that: The plurality of shells (232) are movably connected to the outer wall of the male connector (132) via a C-shaped elastic ring (233) on the inner wall.

5. The tightly connectable submersible pump motor power plug connector according to claim 1, characterized in that: The female head body (21) comprises a female head external joint (211), and screw rod connection blocks (212) are fixedly connected to the two sides of the outer wall of the female head external joint (211), and one end of the female head external joint (211) away from the two screw rod connection blocks (212) is fixedly connected to the female head shell (213), and one end of the female head shell (213) away from the female head external joint (211) is fixedly connected to the screw rod connection shaft (214), and one end of the screw rod connection shaft (214) away from the female head shell (213) is rotatably connected to a main gear (217), and one end of the main gear (217) away from the screw rod connection shaft (214) is fixedly connected to a main gear connection shaft (219), and one end of the main gear connection shaft (219) away from the main gear (217) is fixedly connected to a rotating shaft (218).

6. The tightly connectable submersible pump motor power plug connector according to claim 5, characterized in that: The two sides of the outer wall of the main gear (217) are respectively meshed with the sub-gears (216), and the inner walls of the two sub-gears (216) are fixedly connected with screw rods (215), and the ends of the two screw rods (215) away from the sub-gears (216) are penetrated to the side close to the female external joint (211) through the screw rod connecting shaft (214) and are movably connected to the side of the two screw rod connecting blocks (212).

7. The tightly connectable submersible pump motor power plug connector according to claim 1, characterized in that: The sealing shell (22) comprises a sealing shell transmission shell (221), and transmission blocks (222) are fixedly connected to both sides of the inner wall of the sealing shell transmission shell (221), and the inner walls of the two transmission blocks (222) are both threadedly connected to the outer wall of the screw rod (215).

8. The tightly connectable submersible pump motor power plug connector according to claim 7, characterized in that: One end of the sealing housing transmission housing (221) away from the transmission block (222) is fixedly connected to a sealing housing outer shaft (223), and the inner wall of the sealing housing outer shaft (223) is slidably connected to the outer wall of the female external connector (211).

9. The tightly connectable submersible pump motor power plug connector according to claim 8, characterized in that: The inner wall of the sealing housing outer shaft (223) fits in contact with the outer wall of the sealing housing transmission housing (221).

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