Multi-meter-position interference fit connector with low-voltage metering box

Abstract

The utility model discloses a multi-meter-position interference fit connector assembly with a low-voltage metering box, which comprises a mainboard, the mainboard is arranged in the box body and fixedly connected with the box body, three meters are arranged on one side of the mainboard, the lower end of each meter is provided with a matched connector assembly structure, and the matched connector assembly structure is connected with the mainboard. The matching connector structure comprises a combination hub, a matching plug-in and a cable, and the cable and the matching plug-in are arranged in a penetrating and sliding manner; the box cover is arranged on one side of the box body, the box body and the box cover are rotationally connected through a hinge, an observation window is arranged on the box cover, the observation window and the box cover are arranged into a whole, the connector of the low-voltage metering box is formed by combining a plurality of components, and the interference fit mode is achieved. According to the low-voltage metering box, the plugging piece inserted into the plugging hole can be firmly connected in an extrusion mode in the connector, good contact is ensured, loosening and falling cannot occur in the using process, and the using stability of the low-voltage metering box is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of low-voltage metering boxes, in particular to an interference fit connector for a low-voltage metering box with multiple meter positions. Background Art

[0002] The meter box is a collection of metering instruments and auxiliary equipment necessary for measuring electric energy, including electric energy meters, voltage and current transformers for measurement and their secondary circuits, electric energy metering panels, cabinets, box covers, etc. As a protective device for electric energy meters, the meter box is widely used in public facilities such as municipal administration, residential areas, telecommunications, electricity, rural power grids, factories, enterprises, government agencies, heat, and fire protection.

[0003] The Chinese patent publication number is CN209028123U, and the authorization announcement date is June 25, 2019. A single-phase single-meter metal low-voltage metering box with an interference fit connector includes a metering box, a matching plug-in and a transmission cable; the metering box is made of metal and has a rectangular structure as a whole; a box door is arranged on the surface of the metering box, and the box door is hinged to the metering box by a hinge, and electrical components are arranged inside the metering box; a plug-in slot is arranged above the metering box, and the matching plug-in is arranged in the plug-in slot, and a matching slot is arranged at the bottom of the plug-in slot, and a copper connecting column is arranged in the matching slot, and the copper connecting column is electrically connected to the electrical components inside the metering box; the transmission cable is arranged in the matching plug-in, and a copper conductive block is arranged at the bottom of the matching plug-in, and the copper conductive block is arranged in the matching slot, and is matched and connected with the copper connecting column; two matching plug-ins are provided, and the transmission cables arranged in the matching plug-ins are respectively a neutral line and a live line.

[0004] The connectors equipped in the existing low-voltage meter boxes are mostly simple cylindrical. The plug-in parts and the plug-in holes are produced separately, which leads to errors between the plug-in parts and the plug-in holes. When the plug-in parts are inserted into the plug-in holes, the connection is likely to become loose, resulting in poor contact or falling off during use, which affects the use of the low-voltage meter box and cannot meet the use requirements. Utility Model Content

[0005] The purpose of the utility model is to provide an interference fit connector for a low-pressure metering box with multiple meter positions, so as to solve the problem proposed in the above background technology that the connectors equipped with the existing low-pressure metering boxes are mostly simple cylindrical, and the plug-in parts and the plug-in holes are produced separately, so that there is an error between the plug-in parts and the plug-in holes. When the plug-in parts are inserted into the plug-in holes, the connection is likely to be loose, and poor contact or falling off may occur during use, which affects the use of the low-pressure metering box and cannot meet the use requirements.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-meter-position low-pressure metering box interference fit connector, including a box body, and also including:

[0007] A mainboard is arranged inside the box and fixedly connected to the box. A meter is arranged on one side of the mainboard. Three meters are arranged. A matching connector structure is arranged at the lower end of the meter. The matching connector structure includes a socket, a matching connector and a cable. The cable and the matching connector are slidably arranged.

[0008] The box cover is arranged on one side of the box body, and the box body and the box cover are rotatably connected through a hinge. The box cover is provided with an observation window, and the observation window and the box cover are arranged as one body.

[0009] Preferably, a mating groove is provided on the connector, and the mating plug-in is provided corresponding to the mating groove, a connecting column is provided inside the mating groove, and the connecting column is fixedly connected to the connector, the connecting column is provided corresponding to the cable, a pressure block is provided inside the mating groove, two pressure blocks are provided, and the two pressure blocks are provided on both sides of the mating plug-in, a second spring is provided on one side of the two pressure blocks, and the two ends of the second spring are respectively fixedly connected to the connector and the pressure block.

[0010] Preferably, a locking ring is provided on the outside of one end of the mating plug-in, and the locking ring is threadedly connected to the mating plug-in, an open groove is provided at one end of the mating plug-in, three open grooves are provided, and the three open grooves are equidistantly arranged at one end of the mating plug-in, a rubber block is provided on the inside of one end of the mating plug-in, and the rubber block is connected to the mating plug-in as a whole.

[0011] Preferably, a telescopic cavity is provided on the box cover, a baffle is provided inside the telescopic cavity, and the baffle is slidably connected to the box cover, the baffle is provided on one side of the observation window, a magnetic strip is provided at the upper end of the baffle, and the magnetic strip is fixedly connected to the baffle.

[0012] Preferably, a connecting rail is provided on one side of the main board, and the connecting rail is fixedly connected to the main board, a socket is provided on the back of the meter, and the socket is fixedly connected to the meter, the socket and the connecting rail are arranged correspondingly, the upper and lower ends of the connecting rail are provided with installation cavities, two installation cavities are provided, top blocks are provided inside the two installation cavities, and the top blocks are slidably connected to the connecting rail, a first spring is provided between the top block and the connecting rail, and the two ends of the first spring are respectively fixedly connected to the connecting rail and the top block, a slot is provided on the inner wall of the socket, and the slot and the top block are arranged correspondingly, the upper and lower ends of the socket are provided with through holes, and the through holes are connected to the slot.

[0013] Preferably, a heat seal is provided at the bottom of the box body, and the heat seal is connected to the box body as a whole, a wire fixing seat is provided inside the box body, and the wire fixing seat is fixedly connected to the box body, and the wire fixing seat is arranged above the heat seal.

[0014] Preferably, a sealing ring is provided on the inner side of the box cover, and the sealing ring is fixedly connected to the box cover, a connecting buckle is provided on one side of the box cover, and the connecting buckle is fixedly connected to the box cover, a connecting seat is provided on one side of the box body, and the connecting seat is fixedly connected to the box body, and the connecting seat and the connecting buckle are correspondingly arranged.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model device is provided with a matching connector structure, which is composed of a connector socket, a matching slot, a matching plug-in, a cable and a locking ring. The connection firmness is increased by extrusion, and the connected cables can be effectively fixed, so that the cables and the connecting column cooperate with each other to supply power to the meter box, thereby improving the safety of the low-voltage meter box.

[0017] 2. The utility model device is provided with a baffle, a telescopic cavity and a magnetic strip. During use, the baffle is connected to the box cover with the help of the magnetic strip, forming a protective layer on one side of the observation window, which can prevent the tiger ash layer from being adsorbed on the observation window. When checking the meter, the baffle can be dropped;

[0018] 3. The utility model device is provided with a holder, a connecting rail, a top block, a first spring, a slot and a through hole. The holder is connected to the connecting rail, and the first spring applies a thrust to the top block. Under the action of the thrust, the top block is pushed into the slot, and the connected holder is limited to ensure the assembly stability of the meter. The top block can be squeezed out of the slot through the through hole, so that the meter can be removed conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the expanded front view of the utility model;

[0020] Figure 2 This is the front view of the box cover of the utility model;

[0021] Figure 3 This is a diagram showing the connection relationship between the baffle and the box cover of the utility model;

[0022] Figure 4 This is a diagram showing the connection relationship between the meter and the main board of the utility model;

[0023] Figure 5 For the utility model Figure 4 A partial enlarged view of area A;

[0024] Figure 6 It is a cross-sectional view of the matching connector structure of the utility model;

[0025] Figure 7 This is a diagram showing the connection relationship between the matching plug-in and the socket of the utility model;

[0026] Figure 8This is a diagram showing the connection relationship between the cable and the matching plug-in of the utility model.

[0027] In the figure: 1. box body; 2. box cover; 3. observation window; 4. sealing ring; 5. connecting buckle; 6. connecting seat; 7. main board; 8. meter; 9. matching connector structure; 10. wire holder; 11. heat seal; 12. baffle; 13. magnetic strip; 14. telescopic cavity; 15. card seat; 16. connecting rail; 17. installation cavity; 18. top block; 19. first spring; 20. card slot; 21. through hole; 22. connecting socket; 23. matching slot; 24. matching plug-in; 25. cable; 26. locking ring; 27. rubber block; 28. connecting column; 29. ​​pressure block; 30. second spring; 31. opening slot. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0029] See also Figure 1-8 The utility model provides an embodiment: a multi-meter-type low-pressure metering box interference fit connector, including a box body 1, and also including:

[0030] A main board 7 is arranged inside the box 1 and is fixedly connected to the box 1. A meter 8 is arranged on one side of the main board 7. Three meters 8 are arranged. A matching connector structure 9 is arranged at the lower end of the meter 8. The matching connector structure 9 includes a socket 22, a matching plug-in 24 and a cable 25. The cable 25 is slidably arranged to penetrate the matching plug-in 24.

[0031] The box cover 2 is arranged on one side of the box body 1, and the box body 1 and the box cover 2 are rotatably connected via a hinge. An observation window 3 is arranged on the box cover 2, and the observation window 3 and the box cover 2 are arranged as a whole.

[0032] When in use: first connect the cable 25 to the matching plug-in 24, and then connect the matching plug-in 24 to the socket 22 to achieve interference fit. During the use of the low-voltage metering box, the data of the meter 8 in the box body 1 can be observed through the observation window 3 on the box cover 2.

[0033] See also Figure 1 , Figure 4 , Figure 6 and Figure 7A mating groove 23 is provided on the connector 22, and the mating plug-in 24 is provided corresponding to the mating groove 23. A connecting column 28 is provided inside the mating groove 23, and the connecting column 28 is fixedly connected to the connector 22. The connecting column 28 is provided corresponding to the cable 25. A pressing block 29 is provided inside the mating groove 23. Two pressing blocks 29 are provided, and the two pressing blocks 29 are provided on both sides of the mating plug-in 24. A second spring 30 is provided on one side of the two pressing blocks 29, and the two ends of the second spring 30 are respectively fixedly connected to the connector 22 and the pressing block 29. The second spring 30 applies a thrust to the pressing block 29, and under the action of the thrust, the pressing block 29 is in close contact with the mating plug-in 24, and the inserted mating plug-in 24 is limited, thereby improving the mating firmness of the mating plug-in 24.

[0034] See also Figure 1 , Figure 6 and Figure 8 A locking ring 26 is provided on the outside of one end of the mating plug-in 24, and the locking ring 26 is threadedly connected to the mating plug-in 24. An open groove 31 is provided at one end of the mating plug-in 24. There are three open grooves 31, and the three open grooves 31 are equidistantly arranged at one end of the mating plug-in 24. A rubber block 27 is provided inside one end of the mating plug-in 24, and the rubber block 27 is connected to the mating plug-in 24 as a whole. By rotating the locking ring 26 to squeeze one end of the mating plug-in 24, the rubber block 27 is in close contact with the cable 25 to ensure the firmness of the connection between the cable 25 and the mating plug-in 24.

[0035] See also Figure 2 and Figure 3 A telescopic cavity 14 is provided on the box cover 2, a baffle 12 is provided inside the telescopic cavity 14, and the baffle 12 is slidably connected to the box cover 2, the baffle 12 is provided on one side of the observation window 3, a magnetic strip 13 is provided on the upper end of the baffle 12, and the magnetic strip 13 is fixedly connected to the baffle 12, a protective layer is formed on one side of the observation window 3 by the baffle 12, which can prevent dust from being adsorbed on the observation window 3, and facilitate subsequent table lookup.

[0036] See also Figure 1 , Figure 4 and Figure 5A connecting rail 16 is provided on one side of the main board 7, and the connecting rail 16 is fixedly connected to the main board 7. A card holder 15 is provided on the back of the meter 8, and the card holder 15 is fixedly connected to the meter 8. The card holder 15 and the connecting rail 16 are arranged correspondingly. The upper and lower ends of the connecting rail 16 are provided with mounting cavities 17. There are two mounting cavities 17. Top blocks 18 are provided inside the two mounting cavities 17, and the top blocks 18 are slidably connected to the connecting rail 16. A first spring 19 is provided between the top block 18 and the connecting rail 16, and the two ends of the first spring 19 are respectively provided with mounting cavities 17. It is fixedly connected with the connecting rail 16 and the top block 18, and a slot 20 is provided on the inner wall of the holder 15, and the slot 20 is corresponding to the top block 18. A through hole 21 is provided at the upper and lower ends of the holder 15, and the through hole 21 is connected with the slot 20. A thrust is applied to the top block 18 by the first spring 19, and the top block 18 is pushed into the slot 20 under the action of the thrust, and the connected holder 15 is limited to ensure the assembly stability of the meter 8. The top block 18 can be squeezed out of the slot 20 through the through hole 21, which facilitates the removal of the meter 8.

[0037] See also Figure 1 A heat sealing sleeve 11 is provided at the bottom of the box body 1, and the heat sealing sleeve 11 is connected to the box body 1 as a whole. A wire fixing seat 10 is provided inside the box body 1, and the wire fixing seat 10 is fixedly connected to the box body 1, and the wire fixing seat 10 is arranged above the heat sealing sleeve 11.

[0038] See also Figure 1 and Figure 2 A sealing ring 4 is provided on the inner side of the box cover 2, and the sealing ring 4 is fixedly connected to the box cover 2. A connecting buckle 5 is provided on one side of the box cover 2, and the connecting buckle 5 is fixedly connected to the box cover 2. A connecting seat 6 is provided on one side of the box body 1, and the connecting seat 6 is fixedly connected to the box body 1. The connecting seat 6 and the connecting buckle 5 are correspondingly arranged, and the box cover 2 is connected to the box body 1 through the connecting buckle 5 and the connecting seat 6.

[0039] Working principle: first insert the cable 25 into the matching plug-in 24, rotate the locking ring 26 to squeeze one end of the matching plug-in 24, so that the rubber block 27 is in close contact with the cable 25, ensuring the firmness of the connection between the cable 25 and the matching plug-in 24; then align the matching plug-in 24 with the matching groove 23 and insert it into the socket 22 for connection, and the second spring 30 applies a thrust to the pressure block 29, and under the action of the thrust, the pressure block 29 is in close contact with the matching plug-in 24, and the inserted matching plug-in 24 is limited, thereby improving the firmness of the matching plug-in 24 and realizing interference fit connection; during the use of the low-voltage metering box, the data of the meter 8 in the box body 1 can be observed through the observation window 3 on the box cover 2, and the baffle 12 forms a protective layer on one side of the observation window 3, which can prevent dust from being adsorbed on the observation window 3, facilitating subsequent meter lookup.

[0040] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-meter low-pressure metering box interference fit connector, comprising a box body (1), characterized in that: Also includes: A main board (7) is arranged inside the box (1), and the main board (7) is fixedly connected to the box (1); a meter (8) is arranged on one side of the main board (7); three meters (8) are arranged; a matching connector structure (9) is arranged at the lower end of the meter (8); the matching connector structure (9) comprises a socket (22), a matching connector (24) and a cable (25); and the cable (25) and the matching connector (24) are arranged to penetrate and slide; A box cover (2) is arranged on one side of the box body (1), and the box body (1) and the box cover (2) are rotatably connected via a hinge. An observation window (3) is arranged on the box cover (2), and the observation window (3) and the box cover (2) are arranged as a whole.

2. The interference fit connector for a multi-meter low-pressure metering box according to claim 1, characterized in that: The connector (22) is provided with a mating groove (23), and the mating plug-in (24) is arranged corresponding to the mating groove (23); a connecting column (28) is arranged inside the mating groove (23), and the connecting column (28) is fixedly connected to the connector (22); the connecting column (28) is arranged corresponding to the cable (25); a pressure block (29) is arranged inside the mating groove (23); two pressure blocks (29) are provided, and the two pressure blocks (29) are arranged on both sides of the mating plug-in (24); a second spring (30) is arranged on one side of the two pressure blocks (29), and the two ends of the second spring (30) are respectively fixedly connected to the connector (22) and the pressure block (29).

3. The interference fit connector for a multi-meter low-pressure metering box according to claim 2, characterized in that: A locking ring (26) is arranged on the outside of one end of the mating plug-in (24), and the locking ring (26) is threadedly connected to the mating plug-in (24); an opening groove (31) is arranged on one end of the mating plug-in (24), and three opening grooves (31) are arranged, and the three opening grooves (31) are equidistantly arranged on one end of the mating plug-in (24); a rubber block (27) is arranged on the inside of one end of the mating plug-in (24), and the rubber block (27) is connected to the mating plug-in (24) as a whole.

4. The interference fit connector for a multi-meter low-pressure metering box according to claim 1, characterized in that: The box cover (2) is provided with a telescopic cavity (14), a baffle (12) is provided inside the telescopic cavity (14), and the baffle (12) is slidably connected to the box cover (2), the baffle (12) is provided on one side of the observation window (3), a magnetic strip (13) is provided at the upper end of the baffle (12), and the magnetic strip (13) is fixedly connected to the baffle (12).

5. The interference fit connector for a multi-meter low-pressure metering box according to claim 1, characterized in that: A connecting rail (16) is provided on one side of the main board (7), and the connecting rail (16) is fixedly connected to the main board (7); a card holder (15) is provided on the back of the meter (8), and the card holder (15) is fixedly connected to the meter (8); the card holder (15) and the connecting rail (16) are arranged correspondingly; the upper and lower ends of the connecting rail (16) are both provided with mounting cavities (17); two mounting cavities (17) are provided; and top blocks (18) are provided inside the two mounting cavities (17); The top block (18) is slidably connected to the connecting rail (16); a first spring (19) is arranged between the top block (18) and the connecting rail (16); and two ends of the first spring (19) are respectively fixedly connected to the connecting rail (16) and the top block (18); a card slot (20) is arranged on the inner wall of the card seat (15); and the card slot (20) and the top block (18) are arranged correspondingly; and through holes (21) are arranged at both the upper and lower ends of the card seat (15); and the through hole (21) is arranged in communication with the card slot (20).

6. The interference fit connector for a multi-meter low-pressure metering box according to claim 1, characterized in that: A heat sealing sleeve (11) is provided at the bottom of the box body (1), and the heat sealing sleeve (11) and the box body (1) are connected as a whole; a wire fixing seat (10) is provided inside the box body (1), and the wire fixing seat (10) is fixedly connected to the box body (1); the wire fixing seat (10) is arranged above the heat sealing sleeve (11).

7. The interference fit connector for a multi-meter low-pressure metering box according to claim 1, characterized in that: A sealing ring (4) is provided on the inner side of the box cover (2), and the sealing ring (4) is fixedly connected to the box cover (2); a connecting buckle (5) is provided on one side of the box cover (2), and the connecting buckle (5) is fixedly connected to the box cover (2); a connecting seat (6) is provided on one side of the box body (1), and the connecting seat (6) is fixedly connected to the box body (1); the connecting seat (6) and the connecting buckle (5) are arranged correspondingly.

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