Wall switch with waterproof capability

Abstract

The utility model relates to the wall switch technology field, and discloses a waterproof wall switch comprising a housing, a connecting mechanism and an arc contact piece, the connecting mechanism comprises a cover plate and two fastening screws, the housing is internally provided with an accommodating cavity, two sides of the front end of the inner bottom surface of the accommodating cavity are fixedly connected with wiring terminals, and the arc contact piece is fixedly connected with the wiring terminals. The rear ends of the two wiring terminals are fixedly connected with a first conducting strip and a second conducting strip respectively, an action mechanism is arranged in the shell and comprises a key board, two moving blocks and two flexible film sleeves, and a fixing block is fixedly connected to the center of the bottom face in the containing cavity. According to the wall switch, the flexible film sleeve in the connecting mechanism seals the moving groove, so that the key board is in indirect contact with the moving block, the moving block is pushed to move up and down along the moving groove, the state of the arc-shaped contact piece is changed, a gap between the contact piece and the mechanical action part is avoided, and the waterproof capability of the wall switch is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wall switches, in particular to a wall switch with waterproof capability. Background Art

[0002] A wall switch is an electrical switch installed on the wall. Its main function is to connect and disconnect the circuit, thereby turning on and off lighting, fans and other equipment. In addition, it also has certain decorative functions and can enhance the overall aesthetics of the home or place.

[0003] However, since the circuit is turned on and off by changing the position of the contacts through mechanical action, most of the existing wall switches on the market have gaps between the contacts and the mechanical action parts, which makes it easy for water vapor to penetrate into the wall switch, causing damage to the circuit and equipment.

[0004] Therefore, those skilled in the art provide a wall switch with waterproof capability to solve the problems raised in the above background technology. Utility Model Content

[0005] The purpose of the present utility model is to solve the shortcomings of the prior art and provide a wall switch with waterproof capability. The movable groove is enclosed by a flexible membrane sleeve in the connecting mechanism, so that the key plate is in indirect contact with the movable block, and the movable block is pushed up and down along the movable groove to change the state of the arc-shaped contact piece, thereby avoiding the gap between the contact piece and the mechanical action component, and improving the waterproof capability of the wall switch.

[0006] To achieve the above objectives, the present invention provides a waterproof wall switch, comprising a housing, a connecting mechanism, and an arc-shaped contact piece. The connecting mechanism comprises a cover plate and two fastening screws. A receiving cavity is defined within the housing. Terminals are fixedly connected to both sides of the front end of the bottom of the receiving cavity. The rear ends of the two terminal blocks are respectively fixedly connected to a first conductive piece and a second conductive piece.

[0007] An action mechanism is provided inside the shell, and the action mechanism includes a key plate, two moving blocks and two flexible film sleeves. A fixed block is fixedly connected to the center of the bottom surface of the accommodating cavity, and the middle parts of the outer walls on both sides of the arc-shaped contact piece are rotatably connected to the fixed block. The front end and the rear end of the middle part of the upper end of the shell are both provided with moving grooves, and the edges of the upper end and the lower end of the flexible film sleeve are fixedly connected to the inner wall of the moving groove;

[0008] The movable blocks all slide inside the movable grooves, the lower ends of the movable blocks pass through the housing and fit into the arc-shaped contact pieces, the middle portions of the inner walls at the front and rear ends of the cover plate are provided with sliding grooves, and the inner walls of the sliding grooves on the side away from the center of the cover plate are fixedly connected to return springs;

[0009] Through the above technical solution, the movable groove is sealed by using a flexible membrane sleeve, so that the key panel and the movable block are in indirect contact, so that the key panel can push the movable block to move up and down along the movable groove, allowing the movable block to change the state of the arc-shaped contact piece, thereby blocking the gap between the contact piece and the mechanical action component, making it difficult for water vapor to invade the interior of the wall switch, thereby improving the waterproof ability of the wall switch.

[0010] Furthermore, the grooves on the outer walls of the shell are fixedly connected with elastic sheets, and the elastic sheets are snap-connected with the grooves on the inner walls of the cover plate.

[0011] Through the above technical solution, the elastic sheet fixedly connected to the shell is snap-connected with the cover plate, so that the staff can fix the cover plate on the shell. At the same time, the cover plate can cover the surface of the shell, thereby improving the aesthetics of the wall switch.

[0012] Furthermore, the openings in the middle of both sides of the upper end of the shell are provided with fixing screws, and the front end of the lower end of the shell is provided with wiring holes on both sides, and the inner walls of the wiring holes are fixedly connected with sealing rings;

[0013] Through the above technical solution, the wall switch can be installed on the wall by using the fixing screws set in the opening at the upper end of the shell, and the wiring hole opened at the lower end of the shell corresponds to the opening of the wiring terminal. The wires can be inserted into the wiring terminal, and the sealing ring fixedly connected to the inner wall of the wiring hole can be used to wrap the wires to prevent water vapor from invading the accommodating cavity through the gap.

[0014] Furthermore, the openings on both sides of the lower end of the front outer wall of the housing are threadedly connected to the fastening screws, and the rear ends of the fastening screws pass through the housing to the interior of the terminal;

[0015] Through the above technical solution, by tightening the fastening screws provided on the housing, the wires inserted into the terminal blocks can be fixed, thereby preventing the wires from falling off and poor line contact, and improving the stability of the wall switch during operation.

[0016] Furthermore, the lower end of the fixed block is fixedly connected to the second conductive sheet, the lower end of the arc-shaped contact sheet is in contact with the second conductive sheet, and the front end of the lower end of the arc-shaped contact sheet is in contact with the first conductive sheet;

[0017] Through the above technical solution, by fixing the second conductive sheet under the fixed block, the arc-shaped contact sheet can always be in contact with the second conductive sheet, and then the arc-shaped contact sheet is pushed by the movable block to contact the first conductive sheet, and the circuit can be connected. The movable block is made of nylon material, which has good wear resistance and strength, and also has good electrical insulation performance. In addition, its low friction coefficient can improve the smoothness of movement inside the movable slot.

[0018] Furthermore, connecting blocks are fixedly connected to both sides of the middle portion of the upper end of the housing, and the connecting blocks are rotatably connected to the keypad;

[0019] Through the above technical solution, the connecting block fixedly connected to the upper end of the shell is rotatably connected to the key panel, allowing the key panel to change its tilt direction, indirectly pushing the moving block through the flexible membrane cover, and then changing the position of the arc-shaped contact piece. The flexible membrane cover is made of polyimide material, has good flexibility, is not easy to be damaged, and has a certain electrical insulation ability.

[0020] Furthermore, a clamping block is fixedly connected to one side of the return spring near the center of the cover plate, and the one side of the clamping block near the center of the cover plate passes through the cover plate and is clamped and connected to the key plate;

[0021] Through the above technical solution, the reset spring fixedly connected inside the slide groove acts on the card block, and the card block is connected to the key panel, so that after the key panel is tilted in a certain direction, the elastic force allows the card block to keep the key panel in this state, and a certain force is required to act on the key panel to change the tilt direction of the key panel.

[0022] The utility model has the following beneficial effects:

[0023] The utility model proposes a waterproof wall switch, which closes the movable groove through the flexible membrane sleeve in the connecting mechanism, so that the key plate and the movable block are in indirect contact, so that the key plate can push the movable block to move up and down along the movable groove, and the action block changes the state of the arc-shaped contact piece, thereby avoiding the gap between the contact piece and the mechanical action component, which makes it easy for water vapor to invade the interior of the wall switch, thereby improving the waterproof ability of the wall switch and protecting the circuit and equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the main structure of a waterproof wall switch proposed by the utility model;

[0025] Figure 2 This is an exploded view of a waterproof wall switch proposed by the present invention;

[0026] Figure 3 This is an axial cross-sectional view of the housing, keypad, cover, fixing block and arc-shaped contact piece of a waterproof wall switch proposed by the utility model;

[0027] Figure 4 This is an axial cross-sectional view of the housing, cover plate, elastic sheet and flexible membrane sleeve of a waterproof wall switch proposed by the utility model;

[0028] Figure 5 This is a side sectional view of a waterproof wall switch proposed by the present invention;

[0029] Figure 6 This is an axial cross-section of the housing of a waterproof wall switch proposed in the utility model;

[0030] Figure 7 for Figure 4 Enlarged view of point A in the middle.

[0031] Description of reference numerals:

[0032] 1. Shell; 2. Connecting mechanism; 201. Cover plate; 202. Elastic sheet; 203. Fixing screw; 204. Fastening screw; 205. Wiring hole; 206. Sealing ring; 3. Accommodating cavity; 4. Wiring terminal; 5. Arc-shaped contact piece; 6. First conductive sheet; 7. Second conductive sheet; 8. Action mechanism; 801. Connecting block; 802. Keypad; 803. Moving groove; 804. Moving block; 805. Flexible membrane sleeve; 806. Fixed block; 807. Slide groove; 808. Return spring; 809. Block. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the specific embodiments of the present invention to clearly and completely describe the technical solutions in the specific embodiments of the present invention. Obviously, the specific embodiments described are only part of the specific embodiments of the present invention, not all of the specific embodiments. Based on the specific embodiments of the present invention, all other specific embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] Reference Figure 1-7 The utility model provides a specific embodiment: a waterproof wall switch, comprising a housing 1, a connecting mechanism 2, and an arc-shaped contact piece 5. The connecting mechanism 2 comprises a cover plate 201 and two fastening screws 204. The housing 1 defines an accommodating cavity 3. Both sides of the front end of the bottom of the accommodating cavity 3 are fixedly connected to wiring terminals 4. The rear ends of the two wiring terminals 4 are respectively fixedly connected to a first conductive piece 6 and a second conductive piece 7.

[0035] An actuating mechanism 8 is provided inside the housing 1. The actuating mechanism 8 includes a keypad 802, two movable blocks 804, and two flexible membrane sleeves 805. A fixed block 806 is fixedly connected to the center of the bottom surface of the accommodating cavity 3. The middle portions of the outer walls on both sides of the arc-shaped contact piece 5 are rotatably connected to the fixed block 806. A movable groove 803 is provided at the front and rear ends of the middle portion of the upper end of the housing 1. The edges of the upper and lower ends of the flexible membrane sleeve 805 are fixedly connected to the inner walls of the movable groove 803.

[0036] The moving blocks 804 slide inside the moving grooves 803. The lower ends of the moving blocks 804 pass through the shell 1 and fit into the arc-shaped contact pieces 5. Slide grooves 807 are provided in the middle of the inner walls at the front and rear ends of the cover 201. The inner walls of the slide grooves 807 on the side away from the center of the cover 201 are fixedly connected with return springs 808.

[0037] The movable groove 803 is closed by the flexible membrane sleeve 805 in the connecting mechanism 2, so that the key panel 802 and the movable block 804 are in indirect contact, so that the key panel 802 can push the movable block 804 to move up and down along the movable groove 803, allowing the action block 804 to change the state of the arc-shaped contact piece 5, thereby avoiding the problem of gaps between the contact piece and the mechanical action component, which makes it easy for water vapor to invade the interior of the wall switch, thereby improving the waterproof ability of the wall switch and protecting the circuit and equipment.

[0038] The grooves on the outer walls of the shell 1 are fixedly connected with elastic sheets 202, and the elastic sheets 202 are snap-connected with the grooves on the inner walls of the cover plate 201. The elastic sheets 202 fixedly connected on the shell 1 are snap-connected with the cover plate 201, so that the staff can fix the cover plate 201 on the shell 1. At the same time, the cover plate 201 can cover the surface of the shell 1, thereby improving the aesthetics of the wall switch. The openings in the middle of both sides of the upper end of the shell 1 are provided with fixing screws 203, and both sides of the front end of the lower end of the shell 1 are provided with wiring holes 205. The inner walls of the wiring holes 205 are fixedly connected with sealing rings 206. The wall switch can be installed on the wall through the fixing screws 203 provided in the openings at the upper end of the shell 1, and the wiring holes 20 5 corresponds to the opening of the terminal 4, the wire can be inserted into the terminal 4, and the sealing ring 206 fixedly connected to the inner wall of the wiring hole 205 is used to wrap the wire to prevent moisture from invading the accommodating chamber 3 from the gap. The openings on both sides of the lower end of the outer wall of the front end of the shell 1 are threadedly connected with the fastening screws 204, and the rear ends of the fastening screws 204 pass through the shell 1 to the interior of the terminal 4. By tightening the fastening screws 204 set on the shell 1, the wire inserted into the terminal 4 can be fixed to prevent the wire from falling off and poor contact of the line, thereby improving the stability of the wall switch during operation. The lower end of the fixing block 806 is fixedly connected to the second conductive sheet 7, the lower end of the arc-shaped contact piece 5 is in contact with the second conductive sheet 7, and the front end of the lower end of the arc-shaped contact piece 5 is in contact with the first conductive sheet. The arc contact piece 5 is fitted with the second conductive piece 6, and the second conductive piece 7 is fixed under the fixed block 806 so that the arc contact piece 5 can always be in contact with the second conductive piece 7, and then the arc contact piece 5 is pushed by the movable block 804 to contact the first conductive piece 6, and the circuit can be connected. The movable block 804 is made of nylon material, which has good wear resistance and strength, and also has good electrical insulation performance. In addition, its low friction coefficient can improve the smoothness of movement inside the movable groove 803. Both sides of the middle of the upper end of the shell 1 are fixedly connected with connecting blocks 801, and the connecting blocks 801 are rotatably connected to the key plate 802. The connecting block 801 fixedly connected to the upper end of the shell 1 is rotatably connected to the key plate 802, so that the key plate 802 can change the tilt direction, through the flexible membrane sleeve 80 5 indirectly pushes the moving block 804, thereby changing the position of the arc-shaped contact piece 5. The flexible membrane sleeve 805 is made of polyimide material, which has good flexibility, is not easy to be damaged, and has a certain electrical insulation ability. The side of the reset spring 808 near the center of the cover plate 201 is fixedly connected to the clamping block 809. The side of the clamping block 809 near the center of the cover plate 201 passes through the cover plate 201 and is clamped and connected to the key plate 802. The reset spring 808 fixedly connected inside the slide groove 807 acts on the clamping block 809, and the clamping block 809 is clamped and connected to the key plate 802. When the key plate 802 tilts in a certain direction, the elastic force causes the clamping block 809 to maintain the key plate 802 in this state, and a certain force is required to act on the key plate 802.Only then can the tilt direction of the keypad 802 be changed.

[0039] Working principle: When using this waterproof wall switch, the staff first inserts the wire into the wiring hole 205 and tightens the fastening screw 204 to fix the wire to the wiring terminal 4. Then, use the fixing screw 203 to fix the wall switch to the wall, and use the elastic sheet 202 to fix the cover 201 to the shell 1, and then use the flexible membrane sleeve 805 to close the movable groove 803, so that the key panel 802 and the movable block 804 are in indirect contact, thereby improving the waterproof capability. The user presses the key panel 802 to push the movable block 804 to move along the movable groove 803, changing the contact between the arc-shaped contact piece 5 and the second conductive piece 7 to realize the on and off of the circuit.

[0040] Finally, it should be noted that the above is only a preferred specific implementation method of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned specific implementation methods, those skilled in the art can still modify the technical solutions described in the aforementioned specific implementation methods or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A waterproof wall switch comprising a housing (1), a connecting mechanism (2) and an arc-shaped contact piece (5), characterized in that: The connecting mechanism (2) comprises a cover plate (201) and two fastening screws (204); a receiving cavity (3) is provided inside the housing (1); both sides of the front end of the bottom of the receiving cavity (3) are fixedly connected to connecting terminals (4); and the rear ends of the two connecting terminals (4) are respectively fixedly connected to a first conductive sheet (6) and a second conductive sheet (7); An action mechanism (8) is provided inside the shell (1), and the action mechanism (8) includes a key plate (802), two moving blocks (804) and two flexible membrane sleeves (805); a fixed block (806) is fixedly connected to the center of the bottom surface of the accommodating cavity (3); the middle parts of the outer walls on both sides of the arc-shaped contact piece (5) are rotatably connected to the fixed blocks (806); the front end and the rear end of the middle part of the upper end of the shell (1) are provided with moving grooves (803); the edges of the upper end and the lower end of the flexible membrane sleeve (805) are fixedly connected to the inner wall of the moving groove (803); The moving blocks (804) all slide inside the moving grooves (803), the lower ends of the moving blocks (804) pass through the housing (1) and fit with the arc-shaped contact pieces (5), the middle portions of the inner walls of the front and rear ends of the cover plate (201) are provided with sliding grooves (807), and the inner walls of the sliding grooves (807) on the side away from the center of the cover plate (201) are fixedly connected with return springs (808).

2. The waterproof wall switch according to claim 1, characterized in that: Elastic sheets (202) are fixedly connected to the grooves on the outer walls of the shell (1), and the elastic sheets (202) are snap-connected to the grooves on the inner walls of the cover plate (201).

3. The waterproof wall switch according to claim 1, characterized in that: Fixing screws (203) are provided at the openings in the middle of both sides of the upper end of the shell (1), wiring holes (205) are provided on both sides of the front end of the lower end of the shell (1), and sealing rings (206) are fixedly connected to the inner walls of the wiring holes (205).

4. The waterproof wall switch according to claim 1, characterized in that: The openings on both sides of the lower end of the front outer wall of the housing (1) are threadedly connected to the fastening screws (204), and the rear ends of the fastening screws (204) pass through the housing (1) to the interior of the wiring terminal (4).

5. The waterproof wall switch according to claim 1, characterized in that: The lower end of the fixed block (806) is fixedly connected to the second conductive sheet (7), the lower end of the arc-shaped contact sheet (5) is in contact with the second conductive sheet (7), and the front end of the lower end of the arc-shaped contact sheet (5) is in contact with the first conductive sheet (6).

6. The waterproof wall switch according to claim 1, characterized in that: Connecting blocks (801) are fixedly connected to both sides of the middle portion of the upper end of the housing (1), and the connecting blocks (801) are rotatably connected to the keypad (802).

7. The waterproof wall switch according to claim 1, characterized in that: The reset spring (808) is fixedly connected to a clamping block (809) on one side close to the center of the cover plate (201), and the clamping block (809) is passed through the cover plate (201) on one side close to the center of the cover plate (201) and is clamped and connected to the key plate (802).

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