Square switch

Abstract

The utility model discloses a square switch which comprises an upper cover, a combination switch is installed on the upper cover, a switch shaft of the combination switch penetrates through the upper cover, the penetrating portion is connected with a switch handle, and a first sealing ring is arranged at the connecting position of the switch shaft of the combination switch and the upper cover. A switch shaft of the combination switch is hermetically arranged on the upper cover; the upper cover is fixedly installed on the shell in a sealed mode, a second sealing ring is arranged at the connecting position of the shell and the upper cover, a wiring space is arranged between the combination switch and the inner wall of the shell, a wire inlet hole is formed in the shell, a round sleeve installation body is installed on the outer side of the wire inlet hole, and the round sleeve installation body is installed on the outer side of the round sleeve installation body. And a third sealing ring is arranged on the outer side of the joint of the round sleeve mounting body and the shell. According to the square switch disclosed by the utility model, mechanisms such as an internal switch can be stably sealed, so that the dustproof and waterproof requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of switch devices, in particular to a square switch. Background Art

[0002] A combined switch refers to a switch that is often used as a power supply introduction in an electrical control circuit. It can be used to directly start or stop a small-power motor or make the motor rotate forward and backward, reverse, etc. The combined switch consists of moving contacts (moving contact pieces), static contacts (static contact pieces), a rotating shaft, a handle, a positioning mechanism, a housing, etc. Its moving contacts and static contacts are respectively stacked between several layers of insulating pads, and each is attached with a terminal for connecting a circuit. When the handle is rotated, the moving contacts on each layer rotate together with the square rotating shaft, thereby realizing the on-off control of the circuit.

[0003] With the continuous development of electrical technology, the product requirements for electrical switches are getting higher and higher. Currently, the switches on the market have the following disadvantages: the sealing performance is unstable, and the upper cover and the housing are fixed by two screws, which cannot meet the dust-proof and waterproof requirements of ships.

[0004] Therefore, it is necessary to design a square switch that can stably seal the internal switch and other mechanisms, so as to meet the requirements of dust-proof and waterproof. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a square switch that can stably seal the internal switch and other mechanisms, so as to meet the requirements of dust-proof and waterproof.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is to provide a square switch, including: an upper cover and a housing. A combined switch is installed on the upper cover. The switch shaft of the combined switch penetrates the upper cover, and a switch handle is connected to the penetrated part. A first sealing ring is arranged at the connection between the switch shaft of the combined switch and the upper cover, for sealingly arranging the switch shaft of the combined switch on the upper cover. The upper cover is sealingly and fixedly installed on the housing, and a second sealing ring is arranged at the connection between the housing and the upper cover. A wiring space is arranged between the combined switch and the inner wall of the housing. An inlet hole is arranged on the housing. A circular sleeve installation body is installed outside the inlet hole. A third sealing ring is arranged outside the connection between the circular sleeve installation body and the housing. A T-shaped sealing rubber cylinder body is fixedly installed in the sleeve groove of the circular sleeve installation body. A cable clamping claw is sleeved on the outer wall of the T-shaped sealing rubber cylinder body. A tightening nut is threadedly connected to the external thread groove on the outer wall of the circular sleeve installation body. The T-shaped sealing rubber cylinder body and the cable clamping claw are placed inside the circular sleeve installation body and the tightening nut.

[0007] Further, the upper cover includes a square plate body and a cylindrical body connected to each other. The square plate body of the upper cover is fixedly installed in a sealed manner with the housing, and the second sealing ring is arranged between the square plate body of the upper cover and the housing.

[0008] Further, a positioning post is arranged at the center of the square plate body of the upper cover. A positioning hole is arranged in the positioning post. The first sealing ring is placed in the positioning hole. The switch shaft of the combined switch passes through the positioning hole and the first sealing ring and is connected to the switch handle. The first sealing ring is an O-shaped sealing ring, and the switch handle is placed in the cylindrical body of the upper cover.

[0009] Further, the switch handle is fixedly installed with the switch shaft of the combined switch through a threaded hole formed therein and a fixing screw in cooperation.

[0010] Further, the housing is square, and the square housing of the upper cover and the housing are connected and fixed by four mounting screws.

[0011] Further, a sealing ring surrounding groove is arranged on one side of the upper cover close to the housing. The second sealing ring is arranged in the sealing ring surrounding groove of the upper cover. Four positioning and fixing grooves are arranged on the surface of the upper cover in contact with the second sealing ring. Four corresponding positioning and fixing ribs are arranged on the surface of the second sealing ring in contact with the upper cover. The positioning and fixing ribs are matched with the positioning and fixing grooves.

[0012] Further, a square surface lowering locking structure is arranged at the installation position of the locking screws at the four corners of the upper cover and the second sealing ring.

[0013] Further, both the housing and the upper cover are made of copper material.

[0014] Further, a grounding screw is installed on the housing.

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

[0016] The square switch provided by the present utility model is provided with a first sealing ring at the switch handle and the upper cover, a second sealing ring at the upper cover and the housing, an installation body and a third sealing ring at the inlet hole, ensuring the sealing effect at each connection, and the protection level reaches IP56; adopting a square structure, connected and fixed by four screws, the combined switch is installed on the upper cover, and sufficient wiring space is reserved inside the housing, and the wiring of the circuit is simple and convenient; the second sealing ring adopts a protection, fixing and positioning structure, and the sealing performance is stable; the installation position of the locking screw of the upper cover adopts a surface lowering structure to ensure the stability of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an exploded structural schematic diagram of an embodiment of the present utility model.

[0018] Reference numerals in the drawings:

[0019] 1. Fixed screw; 2. Switch handle; 3. Upper cover; 4. Locking screw; 5. First sealing ring; 6. Combination switch; 7. Housing; 8. Grounding screw; 9. Second sealing ring; 10. Mounting screw; 11. Third sealing ring; 12. Round sleeve mounting body; 13. T-shaped sealing rubber cylinder; 14. Cable clamping claw; 15. Tightening nut; 16. Nameplate. Detailed implementation mode

[0020] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0021] Please refer to Figure 1 , the square switch of the embodiment of the present utility model includes a housing 7, an upper cover 3, a combination switch 6 and a switch handle 2. The upper cover 3 covers the housing 7 and is fixedly connected by a locking screw 4; the switch handle 2 is arranged on the upper cover 3, and the switch handle 2 is fixedly installed on the switch shaft of the combination switch 6 through the fixed screw 1 and the threaded hole on the switch handle 2; the combination switch 6 is fixed on the upper cover 3.

[0022] A wiring space is reserved between the combination switch 6 and the housing 7; the switch shaft of the combination switch 6 passes through the upper cover 3 and is connected to the switch handle 2. A locking screw 4 is arranged at the connection of the switch handle 2 with the switch shaft and the upper cover 3, and a second sealing ring 9 is arranged at the connection of the upper cover 3 and the housing 7; the housing 7 is provided with an inlet hole, and a third sealing ring 11 is arranged at the inlet hole. The third sealing ring 11 and the T-shaped sealing rubber cylinder 13 are fixed to the housing 7 through the round sleeve mounting body 12 and the tightening nut 15. Specifically, the round sleeve mounting body 12 is installed outside the inlet hole. A third sealing ring 11 is arranged outside the connection of the round sleeve mounting body 12 and the housing 7. The T-shaped sealing rubber cylinder 13 is fixedly installed in the socket of the round sleeve mounting body 12. A cable clamping claw 14 is sleeved on the outer wall of the T-shaped sealing rubber cylinder 13. The tightening nut 15 is threadedly connected to the external thread groove on the outer wall of the round sleeve mounting body 12. The T-shaped sealing rubber cylinder 13 and the cable clamping claw 14 are placed inside the round sleeve mounting body 12 and the tightening nut 15.

[0023] The upper cover 3 includes a square plate body and a cylindrical body connected to each other.

[0024] The combination switch 6 is installed on the square plate body of the upper cover 3. A positioning column is arranged at the center of the square plate body of the upper cover 3, and a positioning hole is arranged in the positioning column. The switch shaft of the combination switch 6 passes through the positioning hole and the first sealing ring 5 and is connected to the switch handle 2. The first sealing ring 5 is an O-shaped sealing ring.

[0025] The upper cover 3 and the housing 7 are of a square structure and are connected and fixed by four screws.

[0026] On one side where the upper cover 3 is connected to the housing 7, there is a sealing ring surrounding structure. The second sealing ring 9 is arranged in the surrounding structure of the upper cover 3. Four positioning and fixing grooves are arranged on the surface of the upper cover 3 that contacts the second sealing ring 9, and four corresponding positioning and fixing ribs are arranged on the surface of the second sealing ring 9 that contacts the upper cover 3.

[0027] Square surface lowering locking structures are arranged at the installation positions of the locking screws at the four corners of the upper cover 3.

[0028] Both the housing 7 and the upper cover 3 are made of copper. A nameplate 16 is installed on the outer wall of the housing 7 for identifying the device. A grounding screw 8 is threadedly installed on the housing 7, and the grounding screw 8 presses the grounding wire to prevent static electricity.

[0029] In summary, for the square switch in the embodiment of the present utility model, a first sealing ring is arranged at the switch handle 2 and the upper cover 3, a second sealing ring 9 is arranged at the upper cover 3 and the housing 7, and a round sleeve installation body 12 and a third sealing ring 11 are arranged at the inlet hole, ensuring the sealing effect at each connection and the protection level reaching IP56; adopting a square structure, fixed by four screws, the combined switch 6 is installed on the upper cover 3, and sufficient wiring space is reserved inside the housing 7, making the wiring of the circuit simple and convenient; the second sealing ring 9 adopts a protection, fixing, and positioning structure, with stable sealing performance; the installation position of the locking screw of the upper cover 3 adopts a surface lowering structure to ensure the stability of the connection.

[0030] Although the present utility model has been disclosed above with preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications and improvements without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present utility model shall be defined by the claims.

Claims

1. A square switch, comprising an upper cover (3), a housing (7) and a tightening nut (15), characterized in that: A combination switch (6) is mounted on the upper cover (3); a switch shaft of the combination switch (6) passes through the upper cover (3), and a switch handle (2) is connected to the penetrated portion; a first sealing ring (5) is provided at the connection between the switch shaft of the combination switch (6) and the upper cover (3), for sealingly placing the switch shaft of the combination switch (6) on the upper cover (3); the upper cover (3) is sealed and fixedly mounted on the housing (7), and a second sealing ring (9) is provided at the connection between the housing (7) and the upper cover (3); a wiring space is provided between the combination switch (6) and the inner wall of the housing (7); A wire entry hole is provided, a round sleeve installation body (12) is installed on the outer side of the wire entry hole, a third sealing ring (11) is provided on the outer side of the connection between the round sleeve installation body (12) and the housing (7), a T-shaped sealing rubber cylinder (13) is fixedly installed in the sleeve groove of the round sleeve installation body (12), the outer wall of the T-shaped sealing rubber cylinder (13) is sleeved with a cable clamping claw (14), the tightening nut (15) is threadedly connected to the external thread groove on the outer wall of the round sleeve installation body (12), and the T-shaped sealing rubber cylinder (13) and the cable clamping claw (14) are placed in the round sleeve installation body (12) and the tightening nut (15).

2. The square switch according to claim 1, characterized in that: The upper cover (3) comprises a square plate body and a cylindrical body which are connected to each other; the square plate body of the upper cover (3) is sealed and fixedly mounted on the shell (7); and the second sealing ring (9) is arranged between the square plate body of the upper cover (3) and the shell (7).

3. The square switch according to claim 2, characterized in that: A positioning column is provided at the center of the square plate body of the upper cover (3), a positioning hole is provided in the positioning column, the first sealing ring (5) is arranged in the positioning hole, the switch shaft of the combination switch (6) passes through the positioning hole and the first sealing ring (5) and is connected to the switch handle (2), the first sealing ring (5) is an O-ring, and the switch handle (2) is placed in the cylindrical body of the upper cover (3).

4. The square switch according to claim 1, characterized in that: The switch handle (2) is fixedly mounted on the switch shaft of the combination switch (6) by means of a threaded hole and a fixing screw (1) provided thereon.

5. The square switch according to claim 1, characterized in that: The shell (7) is square, and the square shell of the upper cover (3) and the shell (7) are connected and fixed by four mounting screws (10).

6. The square switch according to claim 1, characterized in that: A sealing ring surrounding groove is provided on a side of the upper cover (3) close to the housing (7), the second sealing ring (9) is arranged in the sealing ring surrounding groove of the upper cover (3), and four positioning and fixing grooves are provided on a side of the upper cover (3) in contact with the second sealing ring (9), and four corresponding positioning and fixing ribs are provided on a side of the second sealing ring (9) in contact with the upper cover (3), and the positioning and fixing ribs cooperate with the positioning and fixing grooves.

7. The square switch according to claim 1, characterized in that: The locking screw (4) installation positions at the four corners of the upper cover (3) and the second sealing ring (9) are all provided with square lowering locking structures.

8. The square switch according to claim 1, characterized in that: The housing (7) and the upper cover (3) are both made of copper.

9. The square switch according to claim 1, characterized in that: A grounding screw (8) is mounted on the housing (7).

Images