High-performance swing rod dustproof structure applied to ship-type switch

Abstract

The application relates to a high-performance swing-rod dustproof structure applied to a boat-type switch, which comprises a shell, a button connected to the upper end of the shell, a swing rod arranged in the shell and driven to swing by the button, an installation hole formed in the upper end of the shell, a downwardly-extending installation groove arranged on the two sides of the installation hole, an installation wall plate formed between any installation groove and the installation hole, an embedding groove formed in the upper end of each installation wall plate, a main shaft arranged on the upper ends of the two installation wall plates and embedded in the two embedding grooves, the two ends of the main shaft extending into the two installation grooves, the swing rod being arranged in the installation hole and the upper end of the swing rod being fixedly connected with the main shaft, a dustproof cap being covered on the installation hole, a matching groove being formed on the lower edge side wall of the dustproof cap and corresponding to the embedding groove, the matching groove and the corresponding embedding groove being in butt joint to form a through hole matched with the main shaft, and the button being buckled on the dustproof cap and fixedly connected with the two ends of the main shaft in the circumferential direction. The dustproof structure can effectively improve the dustproof performance of the boat-type switch.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of switches, and particularly relates to a high-performance dustproof structure of a swing lever applied to a boat-shaped switch. BACKGROUND

[0002] The boat-shaped switch is also called a rocker switch. The structure of the boat-shaped switch is the same as that of a button switch, except that the button is replaced by a boat-shaped switch. The boat-shaped switch is commonly used as a power switch of an electronic device. The contact points of the boat-shaped switch are divided into single-blade single-throw and double-blade double-throw, and some switches are also provided with indicator lamps.

[0003] The moving contact piece of the boat-shaped switch is a rocker, the middle part of which is supported by a fulcrum. The boat-shaped switch drives the swing lever to slide on the moving contact piece through a swing button, so that the contact points of the swing lever and the moving contact piece are switched on both sides of the fulcrum, thereby making the moving contact points of the moving contact piece contact or disconnect with the static contact points in the shell. Due to the swing of the button and the swing of the swing lever, it is difficult to improve the dustproof effect of the boat-shaped switch.

[0004] The utility model patent with the title of “waterproof and dustproof boat-shaped switch” (patent number: ZL 2020227548877) discloses a waterproof and dustproof structure of a boat-shaped switch. Although the patent sets a drainage surface and a water-blocking edge in the shell, in order to adapt to the swing of the swing lever, the installation hole can only be designed as an oblong hole. Therefore, there is a large gap between the swing lever and the installation hole, and there is also a large gap between the button and the shell. Therefore, although the switch has a certain waterproof performance, the dustproof effect is still not good, and the dustproof structure cannot prevent dust from entering the inside of the switch.

[0005] It can be seen that the two key positions of the dustproof of the boat-shaped switch are the gap between the button and the switch and the gap between the swing lever and the shell. There is a solution to set a silica gel elastic film between the button and the shell to cover and close the gap between the button and the shell. The structure is similar to the connection between the gear lever of a car and the body of the car. However, due to the small size of the boat-shaped switch and the large swing angle of the button, the setting of the elastic film will cause the switch to swing unsmoothly, reduce the moving speed of the moving contact piece, and further increase the possibility of arc generation of the switch, thereby reducing the safety of the switch. At the same time, with the passage of time, the aging and mechanical fatigue of the elastic film will gradually appear, eventually causing the switch to open and close harshly and be inconvenient to operate. The rupture caused by the aging of the elastic film will cause the film to be stuck between the shell and the button, resulting in the failure of the switch. Therefore, this solution is obviously not the optimal solution.

[0006] As for the gap between the swing lever and the shell, there is currently no effective means to solve the sealing problem. SUMMARY

[0007] The technical problem solved by the present application is to provide a high-performance swing rod dustproof structure applied to a boat-type switch, which eliminates the large gap between the swing rod and the shell of the boat-type switch, which is connected with the outside and the inside of the shell, realizes good sealing of the shell, and greatly improves the dustproof performance of the boat-type switch.

[0008] To solve the above technical problem, the technical scheme of the present application is as follows: a high-performance swing rod dustproof structure applied to a boat-type switch, comprising a shell, an installation cavity for installing a contact assembly is arranged in the shell, a button is rotatably connected to the upper end of the shell, a swing rod is arranged in the shell and is driven by the button to swing, the swing rod is inserted into the installation cavity to control the on-off of the contact assembly, an installation hole is formed in the upper end of the shell and is connected with the installation cavity, two installation grooves extending downward are arranged on the two sides of the installation hole, the two installation grooves are parallel to each other, an installation wall plate is formed between any installation groove and the installation hole, an embedding groove is formed in the upper end of each installation wall plate, the two embedding grooves are coaxial with each other and have open upper ends, a main shaft is arranged on the upper end of the two installation wall plates and is embedded in the two embedding grooves, the two ends of the main shaft extend into the two installation grooves, the swing rod is located in the installation hole and the upper end of the swing rod is fixedly connected with the main shaft, a dustproof cap is arranged on the installation hole, the dustproof cap has an open lower end to accommodate the main shaft, a matching groove is formed in the lower side wall of the dustproof cap and corresponds to the embedding groove, the matching groove has an open lower end and extends upward, the matching groove and the corresponding embedding groove are connected to form a through hole matched with the main shaft, and the button is buckled on the dustproof cap and is fixedly connected with the two ends of the main shaft in the circumferential direction.

[0009] As a preferred scheme, the two ends of the main shaft are fixedly connected with a long strip-shaped driving handle, any driving handle is arranged perpendicularly to the main shaft and is inserted into the corresponding installation groove downward, the two sides of the button are connected with a clamping jaw extending downward and corresponding to the two driving handles, the two clamping jaws are inserted into the two installation grooves downward and correspondingly from the upper end of the shell, and the two clamping jaws are correspondingly clamped on the outer part of the two driving handles, so that the cooperation of the driving handle and the clamping jaw keeps the button and the main shaft fixed in the circumferential direction.

[0010] As a preferred scheme, a positioning hole coaxial with the installation groove is formed in the outer wall of each side of the shell, and the two ends of the main shaft are rotatably inserted into the two positioning holes correspondingly.

[0011] As a preferred scheme, the button is a hollow structure with an open lower end, the button is covered on the dustproof cap, the lower edge of the button is lower than the upper edge of the installation hole, two connecting grooves are formed in the upper end of the shell at the two ends of the installation groove, the two connecting grooves are connected with the two ends of the two installation grooves respectively, and the two connecting grooves and the two installation grooves jointly form an annular recess, and the lower edge of the button is inserted into the two installation grooves and the two connecting grooves.

[0012] As a preferred scheme, two connecting grooves are respectively arranged on the shell at two ends of the mounting groove, the two connecting grooves are respectively connected to two ends of the mounting groove, two insertion plates are formed between the two connecting grooves and the mounting hole, and the two insertion plates are connected to the two mounting wall plates to form a ring.

[0013] As a preferred scheme, a plurality of outward protruding clamping blocks are arranged on the inner wall of the mounting hole, a plurality of clamping hooks corresponding to the clamping blocks are arranged on the inner top surface of the dustproof cap, the clamping hooks are inserted into the mounting hole and extended below the clamping blocks, and the clamping hooks tightly hook the corresponding clamping blocks.

[0014] As a preferred scheme, a plurality of dust discharging holes are arranged on the outer wall of the shell, the dust discharging holes are communicated with the mounting grooves on both sides of the mounting hole, and the lower edge of the dust discharging hole is not higher than the bottom surface of the mounting groove.

[0015] As a preferred scheme, an annular sealing groove is arranged on the inner wall of the through hole formed by the insertion groove and the corresponding matching groove, a sealing ring is arranged in the sealing groove, the sealing ring is sleeved on the main shaft, and the main shaft is sealingly and rotatably connected to the mounting wall plate and the dustproof cap through the sealing ring.

[0016] As a preferred scheme, the lower edge of the dustproof cap is sealingly connected to the shell around the mounting hole.

[0017] The application has the following beneficial effects: the swing lever and the button are connected to the main shaft in a staggered manner, the swing lever is driven to swing by the rotation of the main shaft driven by the button, and the switch is controlled, so that the swing lever and the button are not directly connected, the switch shell structure is optimized, the swing lever is sealed in the shell by the dustproof cap, and the problem that dust enters the shell through the swing lever to pollute the contact assembly is solved. Since the rotation of the main shaft is rotation, the gap between the main shaft and the shell and the dustproof cap is small, and dust is difficult to enter. In the case that lubricating grease is coated on the rotation connection part of the main shaft, dust or dust is more effectively prevented from entering the shell through the main shaft. Therefore, the high-performance swing lever dustproof structure applied to the boat-shaped switch can eliminate the large gap between the swing lever and the shell of the boat-shaped switch, which is connected to the outside and the inside of the shell, realize good sealing of the shell, and greatly improve the dustproof performance of the boat-shaped switch. BRIEF DESCRIPTION OF DRAWINGS

[0018] The specific embodiments of the application will be further described in detail below with reference to the accompanying drawings, in which:

[0019] Fig. 1 is an explosion structure schematic diagram of the application;

[0020] Fig. 2 is a cross-sectional structure schematic diagram of the application;

[0021] Fig. 3 is a schematic view of a sealed connection structure of a main shaft and a shell;

[0022] Figs. 1-3 In the figure: 1, shell, 2, mounting cavity, 3, button, 4, swing lever, 5, mounting hole, 6, mounting groove, 7, mounting wall plate, 8, embedding groove, 9, main shaft, 10, dustproof cap, 11, matching groove, 12, driving handle, 13, clamping jaw, 14, positioning hole, 15, connecting groove, 16, plug-in plate, 17, outer step surface, 18, clamping block, 19, clamping hook, 20, dust removal hole, 21, sealing groove, 22, sealing ring. DETAILED DESCRIPTION

[0023] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0024] As Fig. 1 and Fig. 2 shown, the high-performance swing lever dustproof structure applied to a boat-shaped switch comprises a shell 1, a mounting cavity 2 for mounting a contact assembly is arranged in the shell 1, a button 3 is rotatably connected to the upper end of the shell 1, a swing lever 4 is further arranged in the shell 1 and is driven by the button 3 to swing, the swing lever 4 is inserted into the mounting cavity 2 to control the on-off of the contact assembly, an installation hole 5 is formed in the upper end of the shell 1 and is in communication with the mounting cavity 2, a mounting groove 6 extending downward is arranged on each side of the installation hole 5, the two mounting grooves 6 are parallel to each other, a mounting wall plate 7 is formed between any mounting groove 6 and the installation hole 5, an embedding groove 8 is formed in the upper end of each mounting wall plate 7, the two embedding grooves 8 are coaxial with each other and have open upper ends, a main shaft 9 is arranged on the upper end of the two mounting wall plates 7, the two ends of the main shaft 9 are embedded in the two embedding grooves 8, and the two ends of the main shaft 9 extend into the two mounting grooves 6, respectively, the swing lever 4 is located in the installation hole 5 and the upper end of the swing lever 4 is fixedly connected to the main shaft 9, and the swing lever 4 is preferably perpendicular to the main shaft 9, a dustproof cap 10 is arranged on the installation hole 5, the dustproof cap 10 has an open lower end to accommodate the main shaft 9, and a matching groove 11 corresponding to the embedding groove 8 is formed in the lower side wall of the dustproof cap 10, the matching groove 11 has an open lower end and extends upward, and the matching groove 11 and the corresponding embedding groove 8 are in abutment to form a through hole matched with the main shaft 9.

[0025] The button 3 is buckled on the dustproof cap 10 and fixedly connected with the two ends of the main shaft 9 in the circumferential direction, and the specific connection modes include but are not limited to integral forming, bonding, riveting, clamping, inserting and the like. In the embodiment, one long strip-shaped driving handle 12 is fixedly connected with each end of the main shaft 9, and any driving handle 12 is arranged perpendicularly to the main shaft 9 and inserted into the corresponding installation slot 6 downward. The button 3 is connected with two clamping jaws 13 which extend downward and correspond to the two driving handles 12 respectively. The two clamping jaws 13 are inserted into the two installation slots 6 from the upper end of the shell 1 downward and correspondingly. The two clamping jaws 13 are clamped on the outside of the two driving handles 12 correspondingly. The cooperation of the driving handle 12 and the clamping jaw 13 makes the button 3 and the main shaft 9 keep fixed in the circumferential direction. When the button 3 is pressed, the button 3 rotates around the main shaft 9 and drives the main shaft 9 to rotate synchronously, and the main shaft 9 drives the swing rod 4 to swing.

[0026] A positioning hole 14 coaxial with the installation slot 6 is formed on each side outer wall of the shell 1, and the two ends of the main shaft 9 are correspondingly inserted into the two positioning holes 14, so as to realize the positioning of the main shaft 9 and the shell 1, avoid the main shaft 9 from being separated from the embedded groove 8 when the dustproof cap 10 is loose, and simultaneously strengthen the compression resistance of the main shaft 9, reduce the shear force suffered by the main shaft 9 at the embedded groove 8, and avoid the end of the main shaft 9 from being broken by the button 3.

[0027] As shown in Fig. 2 , the button 3 is a hollow structure with an open lower end, the button 3 covers the dustproof cap 10, and the lower edge of the button 3 is lower than the upper edge of the installation hole 5, as shown in Fig. 1 , two connection slots 15 are formed on the shell 1 at the two ends of the installation slot 6 respectively, the two connection slots 15 are connected with the two ends of the two installation slots 6 respectively, and the two connection slots 15 and the two installation slots 6 jointly form an annular groove, and the lower edge of the button 3 is inserted into the two installation slots 6 and the two connection slots 15.

[0028] In the embodiment, the two connection slots 15 and the installation hole 5 form two insertion plates 16, and the two insertion plates 16 and the two installation wall plates 7 are connected in sequence to form an annular structure. The top outer edges of the installation wall plate 7 and the insertion plate 16 are all shrunk downward to form an annular outer step surface 17. The dustproof cap 10 is buckled on the installation wall plate 7 and the insertion plate 16, and the lower end of the dustproof cap 10 abuts against the outer step surface 17, so as to further improve the sealing and closing effect of the dustproof cap 10 on the installation hole 5.

[0029] In the embodiment, a plurality of outward protruding clamping blocks 18 are arranged on the inner wall of the installation hole 5, and a plurality of clamping hooks 19 corresponding to the clamping blocks 18 are arranged on the inner top surface of the dustproof cap 10. The clamping hooks 19 are inserted into the installation hole 5 and extend below the clamping blocks 18 to tightly hook the corresponding clamping blocks 18. In actual production, the lower edge of the dustproof cap 10 can also be sealingly connected with the shell 1 around the installation hole 5 through sealing glue, sealing gaskets and the like.

[0030] In the embodiment, the button 3 is not sealed with the shell 1, and dust can enter the mounting groove 6 and the connecting groove 15 through the gap between the button 3 and the shell 1. In order to avoid the influence of dust accumulation on the normal pressing of the button 3, a plurality of dust discharge holes 20 are formed on the outer wall of the shell 1, the dust discharge holes 20 are communicated with the mounting grooves 6 on both sides of the mounting hole 5, and the lower edge of the dust discharge hole 20 is not higher than the bottom surface of the mounting groove 6. In this way, the dust in the mounting groove 6 can be discharged out of the shell 1 through the dust discharge hole 20.

[0031] As shown in Fig. 3 , an annular sealing groove 21 is arranged on the inner wall of the through hole formed by the matching of the embedding groove 8 and the corresponding matching groove 11, a sealing ring 22 is arranged in the sealing groove 21, the sealing ring 22 is sleeved on the main shaft 9, and the main shaft 9 is sealingly and rotatably connected with the mounting wall plate 7 and the dustproof cap 10 through the sealing ring 22. In this way, all channels through which dust enters the mounting cavity 2 can be completely blocked, and the dustproof performance of the boat-shaped switch is greatly improved.

[0032] The working principle of the application is as follows: Figs. 1-3 As shown in the drawings, the application adopts a main shaft 9 to connect the button 3 and the swing rod 4, and the swing rod 4 and the button 3 are connected in a staggered manner on the main shaft 9. The swing rod 4 is driven to swing by the rotation of the main shaft 9 driven by the button 3, and the switch is controlled. In this way, the swing rod 4 and the button 3 are not directly connected, and on the basis of optimizing the structure of the switch shell 1, the swing rod 4 can be sealed in the shell 1 by the dustproof cap 10, thereby eliminating the problem that dust enters the shell 1 along the swing rod 4 to pollute the contact assembly. Since the rotation of the main shaft 9 is rotation, the gap between the main shaft 9 and the shell 1 and the dustproof cap 10 is small, and dust is difficult to enter. In the case that lubricating grease is coated or a sealing ring 22 is additionally arranged at the rotation connection part of the main shaft 9, dust or dust entering the shell 1 along the main shaft 9 can be more effectively avoided. Therefore, the high-performance swing rod dustproof structure applied to the boat-shaped switch can eliminate the large gap between the swing rod 4 and the shell 1 of the boat-shaped switch, which is connected with the outside and the inside of the shell 1, realize good sealing of the shell 1, and greatly improve the dustproof performance of the boat-shaped switch.

[0033] The above embodiments only exemplarily illustrate the principle and effect of the application, and part of the applied embodiments, but are not used to limit the application; it should be pointed out that for ordinary skilled in the art, without departing from the concept of the application, a number of modifications and improvements can be made, which all belong to the protection scope of the application.

Claims

1. A high-performance swing rod dustproof structure applied to a ship-type switch, comprising a shell (1), an installation cavity (2) for installing a contact assembly is arranged in the shell (1), a button (3) is rotatably connected to the upper end of the shell (1), a swing rod (4) that is driven by the button (3) to swing is further arranged in the shell (1), the swing rod (4) is inserted into the installation cavity (2) to control the on-off of the contact assembly, characterized in that, The shell (1) upper end is provided with an installation hole (5) communicated with the installation cavity (2), the both sides of the installation hole (5) are respectively provided with a downward extending installation slot (6), the two installation slots (6) are parallel to each other, any installation slot (6) and the installation hole (5) form an installation wall plate (7), the upper end of the two installation wall plates (7) is respectively provided with an embedding slot (8), the upper end of the two embedding slots (8) is open and coaxial with each other, the upper end of the two installation wall plates (7) is provided with a main shaft (9), the both ends of the main shaft (9) are embedded in the two embedding slots (8), the both ends of the main shaft (9) extend into the two installation slots (6) respectively, the swing lever (4) is located in the installation hole (5) and the upper end of the swing lever (4) is fixedly connected with the main shaft (9), the installation hole (5) is covered with a dustproof cap (10), the lower end of the dustproof cap (10) is open to accommodate the main shaft (9), the lower edge side wall of the dustproof cap (10) is provided with a matching slot (11) corresponding to the embedding slot (8), the lower end of the matching slot (11) is open and extends upward, the matching slot (11) and the corresponding embedding slot (8) are connected to form a through hole matched with the main shaft (9), the button (3) is buckled on the dustproof cap (10) and fixedly connected with the both ends of the main shaft (9) in the circumferential direction.

2. The high performance swing lever dust protection structure applied to a boat type switch according to claim 1, characterized in that, The both ends of the main shaft (9) are respectively fixedly connected with a long strip-shaped driving handle (12), any driving handle (12) is perpendicular to the main shaft (9) and is inserted into the corresponding installation slot (6) downward, the both sides of the button (3) are respectively connected with a downward extending claw (13) corresponding to the two driving handles (12) one by one, the two claws (13) are inserted into the two installation slots (6) one by one from the upper end of the shell (1) downward, the two claws (13) are clamped on the outer part of the two driving handles (12) one by one, the cooperation of the driving handle (12) and the claw (13) makes the button (3) and the main shaft (9) keep circumferential fixed.

3. The high performance swing lever dust protection structure applied to a boat type switch according to claim 2, characterized in that, The both sides of the shell (1) are respectively provided with a positioning hole (14) coaxial with the installation slot (6), the both ends of the main shaft (9) are rotatably inserted into the two positioning holes (14) one by one.

4. The high performance swing lever dust protection structure applied to a boat type switch according to claim 1, characterized in that, The button (3) is a hollow structure with the lower end open, the button (3) covers the dustproof cap (10), the lower edge of the button (3) is lower than the upper edge of the installation hole (5), the shell (1) located at the both ends of the installation slot (6) is respectively provided with two connection slots (15), the two connection slots (15) are connected with the both ends of the two installation slots (6) respectively, the two connection slots (15) and the two installation slots (6) jointly form an annular groove, the lower edge of the button (3) is inserted into the two installation slots (6) and the two connection slots (15) respectively.

5. The high performance swing bar dust protection structure applied to a boat type switch according to claim 1, characterized in that, Two connecting grooves (15) are respectively arranged on the shell at both ends of the installation groove (6), the two connecting grooves (15) are respectively connected to both ends of the two installation grooves (6), two insertion plates (16) are formed between the two connecting grooves (15) and the installation hole (5), the two insertion plates (16) are connected to the two installation wall plates (7) in the first place to form a ring, the top outer edges of the installation wall plate (7) and the insertion plate (16) are all shrunk downward to form an annular outer step surface (17), the dustproof cap (10) is buckled on the installation wall plate (7) and the insertion plate (16), and the lower end of the dustproof cap (10) is abutted with the outer step surface (17).

6. The high performance swing bar dust protection structure applied to a boat type switch according to claim 1, characterized in that, A plurality of outward protruding clamping blocks (18) are arranged on the inner wall of the installation hole (5), a plurality of clamping hooks (19) corresponding to the clamping blocks (18) are arranged on the inner top surface of the dustproof cap (10), the clamping hooks (19) are inserted into the installation hole (5) and extended below the clamping blocks (18), and the clamping hooks (19) tightly hook the corresponding clamping blocks (18).

7. The high performance swing bar dust protection structure applied to a boat type switch according to claim 1, characterized in that, A plurality of dust discharge holes (20) are arranged on the outer wall of the shell (1), the dust discharge holes (20) are communicated with the installation grooves (6) on both sides of the installation hole (5), and the lower edge of the dust discharge hole (20) is not higher than the bottom surface of the installation groove (6).

8. The high performance swing bar dust protection structure applied to a boat type switch according to claim 1, characterized in that, An annular sealing groove (21) is arranged on the inner wall of the through hole formed by the matching of the insertion groove (8) and the corresponding matching groove (11), a sealing ring (22) is arranged in the sealing groove (21), the sealing ring (22) is sleeved on the main shaft (9), and the main shaft (9) is sealingly and rotatably connected with the installation wall plate (7) and the dustproof cap (10) through the sealing ring (22).

9. The high performance swing bar dust protection structure applied to a boat type switch according to claim 1, characterized in that, The lower edge of the dustproof cap (10) is sealingly connected with the shell (1) around the installation hole (5).

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