Fully-sealed locking type button switch

Abstract

The invention discloses a fully-sealed locking type button switch which comprises a sealing mechanism, a button mechanism, a locking mechanism and a reversing contact mechanism. The sealing mechanism realizes efficient sealing and isolates dust and moisture through concave-convex matching of a bowl-shaped sealing cover and a shell and fastening of a nut; a metal cap, a light-transmitting piece and a plastic button in the button mechanism are connected through buckles and rivets and are stably arranged in the sealed space. According to the locking mechanism, reliable locking is achieved through cooperation of a lock reed stepped lock cylinder structure groove face and a U-shaped self-locking spring, accurate reset is guaranteed through a reset pressure spring, and stability is enhanced through an auxiliary reed. The reversing contact mechanism is driven through components such as a hook spring and a movable contact piece set, circuit on-off switching is achieved, and a conductive piece is sealed through epoxy resin glue to guarantee reliable electrical connection. The switch solves the problems that a traditional switch is complex in internal structure, difficult to seal and incapable of being effectively locked, achieves multiple breakthroughs in sealing protection, locking function, electrical performance and operation stability, and is suitable for various complex environments.

Description

Technical Field

[0001] The present invention belongs to the technical field of electrical switches, and particularly relates to a fully sealed locking push-button switch. Background Art

[0002] A push-button switch is a switch that drives the conversion of internal contacts by a driving force in the same straight line as the button stroke. It is an important component in the control consoles and panel control systems of various instruments, meters, and electromechanical devices; most of the time, the push-button switch is in the initial free state position. When under the action of an external force, the switch can be converted to a second state. A locking push-button switch is a switch that can remain in the same state unless acted upon by an external force.

[0003] For traditional sealed push-button switches, a sealing ring needs to be provided on the button mechanism inside the switch to achieve the sealing of the switch. Since the internal structure of some switches is complex and the space position is small, it is impossible to achieve the sealing of the switch by setting an internal sealing ring on the button mechanism.

[0004] Chinese Patent Publication No. CN 222394731 U discloses a self-locking and reset type normally open and normally closed push-button switch, belonging to the technical field of electrical switches. It includes a housing, as well as a button, a self-locking component, a moving bracket, a base, a moving contact, a static contact, an indicator light, and a first spring. The self-locking component is arranged between the button and the moving bracket, the moving contact is installed on the moving bracket, and the static contact is fixed on the base; the self-locking component includes a driving tooth, a limiting tooth, and a transmission wheel, and the outer circumference of the transmission wheel is provided with a convex tooth structure; the moving contact includes a set of first moving contacts and a set of second moving contacts, the static contact includes a set of first static contacts and a set of second static contacts. In the normal state, the first moving contact is in contact with the first static contact, and at the same time, the second moving contact is separated from the second static contact. Pressing the button downward drives the moving bracket to move downward, causing the first moving contact to separate from the first moving contact, and at the same time, the second moving contact is in contact with the second static contact; this patent only sets a light-transmitting rubber sleeve on the upper surface of the button and presses it tightly against the upper end of the housing with a screw sleeve to block the gap between the housing and the button; however, for other parts of the switch, such as the splicing part of the housing, the connection part between the base and the housing, the lead inlet and outlet, etc., there are no clear sealing measures, and these parts may become channels for dust and moisture to enter the interior of the switch, unable to achieve comprehensive sealing protection, and the sealing integrity is insufficient; at the same time, the self-locking of the push-button switch of this patent depends on the cooperation of the convex tooth structure of the transmission wheel with other components. If the self-locking function needs to be removed and changed to a self-resetting switch, a transmission wheel without a convex tooth structure needs to be replaced; although some components are common, different transmission wheels still need to be distinguished for design and assembly, increasing the complexity of production management and being unfavorable for improving production efficiency and reducing costs. Summary of the Invention

[0005] To solve the above technical problems, the present invention provides a fully sealed locking push-button switch.

[0006] The present invention is achieved through the following technical solutions.

[0007] A fully sealed locking push-button switch, comprising:

[0008] A sealing mechanism, including a housing and a sealing cover connected above the housing;

[0009] A button mechanism, disposed within the sealing mechanism, including a metal cap, a light-transmitting sheet disposed within the metal cap, and a plastic button disposed below the metal cap and connected by snap riveting;

[0010] A locking mechanism, disposed below the button mechanism, including a self-locking spring, a lock spring sheet, a reset compression spring, and an auxiliary spring sheet; the upper end of the self-locking spring is in contact connection with the lock spring sheet, and the lower end is inserted and connected to the conductive member B of the commutation contact mechanism; the top end of the reset compression spring is fixedly connected to the lock spring sheet, and the bottom end is fixedly connected to the base of the commutation contact mechanism; an auxiliary spring sheet is disposed on the back of the self-locking spring;

[0011] A commutation contact mechanism, disposed below the button mechanism, including a base, and conductive member A, conductive member B, and conductive member C disposed within the base; the upper end of the conductive member A is hooked and connected to one end of a hook spring, the other end of the hook spring is hooked and connected to the middle of a moving contact group, the middle of the hook spring is hingedly connected to a commutation pressure piece, and the bottom of the moving contact group can switch between contact connections between the conductive member B and the conductive member C.

[0012] The sealing cover is a "bowl-shaped" structure for covering the metal cap and the housing;

[0013] The bowl mouth of the "bowl-shaped" structure is provided with a groove, and the housing is provided with a convex platform that cooperates with the groove.

[0014] The housing is provided with a threaded screw, and the mounting nut is screwed tightly to the screw, so that the groove at the bowl mouth of the sealing cover and the convex platform of the housing are closely fitted, enhancing the sealing performance.

[0015] The lock spring sheet is provided with a groove surface of a stepped lock core structure, and the groove surface includes: groove surface A, groove surface B, groove surface C, groove surface D, groove surface E, and groove surface F. These groove surfaces are all arranged on the circumference of a heart-shaped convex block and are lower than the convex block; the heights of groove surface B, groove surface C, groove surface D, and groove surface E decrease in sequence; the height of groove surface E is lower than that of groove surface F; the height of groove surface F is higher than that of groove surface A; the height of groove surface A is lower than that of groove surface B.

[0016] The self-locking spring is a "U"-shaped structure with an opening to the left, and the end face of the upper support leg is in fitting contact with the groove surface, and the lower support leg passes through the inner hole of the conductive member B.

[0017] The lock spring sheet is provided with a guiding hole, and the base is provided with a limiting platform. The upper end of the reset compression spring passes through and is fixed within the guiding hole, and the lower end is sleeved and fixed on the limiting platform.

[0018] The groove width dimension of the groove surface is 0.01 mm to 0.03 mm larger than the diameter of the self-locking spring.

[0019] The first conductive part, the second conductive part and the third conductive part all penetrate through the bottom end of the base, and epoxy resin glue is coated at the contact part between them and the base for sealing.

[0020] A limiting block is arranged between the groove surface C, the groove surface D and the groove surface E.

[0021] The second conductive part and the third conductive part both include a bearing body which extends horizontally. An electrical connection docking part extending upward and a base fixing part extending downward are respectively arranged at both ends of the bearing body; and, a limiting hole for limiting is formed in the bearing body.

[0022] The first conductive part is in the shape of a hook. The bottom end of the hook structure is fixedly connected to the base, and the hook part at the top end is hooked and connected to one end of the hook spring.

[0023] The beneficial effects of the present invention are as follows:

[0024] 1. Sealing protection: The "bowl-shaped" sealing cover is in concave-convex fit with the outer shell and is supplemented by nut fastening, which can effectively isolate external impurities such as dust and moisture, adapt to complex and harsh environments, and extend the service life of the switch;

[0025] 2. Stable locking: Through the precise fit between the stepped groove surface of the lock spring piece and the self-locking spring, reliable locking is achieved, preventing misoperation and ensuring the stable state of the switch;

[0026] 3. Precise reset: The guiding and limiting design between the reset compression spring, the lock spring piece and the base ensures that the switch can be accurately and stably reset to the initial state after operation;

[0027] 4. Reliable conduction: The conductive part penetrates through the base and is sealed with epoxy resin glue, which not only ensures good electrical connection but also enhances the sealing performance, ensuring the stable operation of the circuit;

[0028] In summary, in view of the technical problems of the traditional switch, such as complex internal structure, cramped space, and difficulty in achieving sealing by setting an inner sealing ring in the button mechanism, the present invention innovatively adopts a sealing structure in which the "bowl-shaped" sealing cover is in concave-convex fit with the outer shell and is fastened with nuts, without relying on the inner sealing ring in the button mechanism, effectively improving the sealing performance. At the same time, a breakthrough design of the stepped groove surface structure is adopted, and the precise fit between the lock spring piece and the self-locking spring enables the switch to have a reliable locking function on the basis of achieving full sealing protection. In addition, the guiding and limiting design of the reset compression spring, the sealing treatment of the conductive part, and the delicate connection method between various components further ensure the stable reset of the switch, reliable electrical connection and overall performance optimization of the switch, achieving multiple technical breakthroughs in sealing, locking and performance. Brief Description of the Drawings

[0029] Figure 1 This is a structural diagram of a fully sealed locking button switch of the present invention;

[0030] Figure 2 This is a structural diagram of a stepped lock core of a lock spring piece of a fully sealed locking button switch of the present invention;

[0031] Figure 3 This is a partial view of the initial position relationship between a self-locking spring and a reset compression spring and a lock spring piece of a fully sealed locking button switch of the present invention;

[0032] Figure 4 This is a schematic diagram of the stepped lock core structure and the locking movement track of the switch of the present invention;

[0033] In the figure: 1 - metal cap, 2 - plastic button, 3 - light-transmitting piece, 4 - self-locking spring, 5 - reset compression spring, 6 - auxiliary spring piece, 7 - lock spring piece, 8 - conductive part A, 9 - base, 10 - conductive part B, 11 - moving contact piece group, 12 - hook spring, 13 - commutation pressing piece, 14 - sealing cover, 15 - outer shell, 16 - mounting nut, 17 - conductive part C, 18 - convex block, 19 - limiting block, 20 - groove surface A, 21 - groove surface B, 22 - groove surface C, 23 - groove surface D, 24 - groove surface E, 25 - groove surface F. Detailed Description of the Invention

[0034] The technical solution of the present invention will be further described below, but the scope of protection is not limited thereto.

[0035] Referring to Figures 1 to 4

[0036] As Figure 1 shown is a structural diagram of a fully sealed locking button switch of the present invention. A fully sealed locking button switch includes:

[0037] A sealing mechanism, including an outer shell 15 and a sealing cover 14 connected above the outer shell 15;

[0038] Among them, the sealing cover 14 has a "bowl-shaped" structure, and its design purpose is to be able to completely cover the metal cap 1 and the outer shell 15 to form a relatively closed space, effectively blocking foreign matters such as dust and moisture from entering the switch interior. The bowl mouth of the "bowl-shaped" structure is provided with a groove, and the outer shell 15 is provided with a boss matching the groove. This concave-convex matching structure initially realizes the tight connection between the sealing cover and the outer shell.

[0039] Further, a threaded screw rod is provided on the outer shell 15, and the mounting nut 16 is screwed tightly to the screw rod. When the mounting nut 16 is tightened, the bowl-shaped groove of the sealing cover 14 will fit more closely with the boss of the outer shell 15, greatly enhancing the sealing performance. This design effectively solves the problem that the internal components of traditional switches are vulnerable to the external environment due to poor sealing, extends the service life of the switch, and is applicable to various complex environments with high sealing requirements, such as humid and dusty industrial sites, etc.

[0040] A button mechanism, disposed within the sealing mechanism, includes a metal cap 1, a light-transmitting sheet 3 disposed within the metal cap 1, and a plastic button 2 disposed below the metal cap 1 and connected by riveting.

[0041] The metal cap 1 can provide certain mechanical protection for the button mechanism to prevent internal components from being directly damaged by external forces; the light-transmitting sheet 3 can be used to indicate the switch state, facilitating users to intuitively understand the working condition of the switch; the plastic button 2 and the metal cap 1 are connected by riveting. This connection method is simple and reliable, ensuring both a stable connection between the two and being convenient for production and processing, reducing the production cost. At the same time, the entire button mechanism is placed within the sealing mechanism and can work stably under the protection of the sealing mechanism without being interfered by the external environment.

[0042] As Figure 4 A partial view of the initial position relationship of the self-locking spring, the reset compression spring, and the lock spring piece of a fully-sealed locking button switch according to the present invention as shown, a locking mechanism, disposed below the button mechanism, includes a self-locking spring 4, a lock spring piece 7, a reset compression spring 5, and an auxiliary spring piece 6; the upper end of the self-locking spring 4 is in contact connection with the lock spring piece 7, and the lower end is inserted and connected to the conductive member B 10 of the commutation contact mechanism; the top end of the reset compression spring 5 is fixedly connected to the lock spring piece 7, and the bottom end is fixedly connected to the base 9 of the commutation contact mechanism; an auxiliary spring piece 6 is disposed on the back of the self-locking spring 4.

[0043] Further, a groove surface of a stepped lock core structure is provided on the lock spring piece 7. The groove surface includes: groove surface A20, groove surface B21, groove surface C22, groove surface D23, groove surface E24, and groove surface F25. These groove surfaces are all arranged on the circumference of the convex block 18 of the heart-shaped structure and are lower than the convex block 18; the heights of groove surface B21, groove surface C22, groove surface D23, and groove surface E24 decrease in sequence; the height of groove surface E24 is lower than that of groove surface F25; the height of groove surface F25 is higher than that of groove surface A20; the height of groove surface A20 is lower than that of groove surface B21; a limiting block 19 is arranged between groove surface C22, groove surface D23, and groove surface E24. Specifically, one side of the limiting block 19 close to groove surface C22 has a limiting relationship with groove surface C22, one side close to groove surface D23 has a limiting relationship with groove surface D23, and one side close to groove surface E24 has a limiting relationship with groove surface E24. The self-locking spring 4 is a "U"-shaped structure with an opening to the left. The end surface of the upper support leg is in fitting contact with the groove surface, and the lower support leg is inserted into the inner hole of the conductive part B10. Moreover, the groove width dimension of the groove surface is 0.01 mm to 0.03 mm larger than the diameter of the self-locking spring 4. Such a dimension design can not only ensure the smooth movement of the self-locking spring 4 in the groove surface but also ensure that the self-locking spring 4 will not easily shake or shift when in the locked position, thus realizing a reliable locking function.

[0044] Through the design of the stepped lock core structure, when the button mechanism is pressed, the self-locking spring 4 moves in the groove surface of the lock spring piece 7. By utilizing the height difference of each groove surface and the limiting effect of the limiting block 19, the self-locking spring 4 can stably stay in the corresponding locked position, preventing the switch from changing its state due to misoperation and improving the safety and reliability of the switch use.

[0045] The reset compression spring 5 plays a key role in the switch operation process. A guiding hole is provided on the lock spring piece 7, and a limiting platform is provided on the base 9. The upper end of the reset compression spring 5 is inserted and fixed in the guiding hole, and the lower end is sleeved and fixed on the limiting platform. This structural design enables the reset compression spring 5 to expand and contract along a fixed direction during operation, ensuring the accuracy and stability of the reset action. When the button is pressed, the reset compression spring 5 is compressed to store elastic potential energy. When the external force is withdrawn, the reset compression spring 5 releases the elastic potential energy to push the lock spring piece 7 to reset, thereby driving the button mechanism back to the initial state and ensuring that the switch can be reliably operated repeatedly.

[0046] The auxiliary spring piece 6 is arranged on the back of the self-locking spring 4, which can provide additional support and elastic assistance for the self-locking spring 4, be used to limit the self-locking spring 4 to prevent it from moving left and right, and at the same time can provide sufficient elastic force for the self-locking spring 4 to ensure that the self-locking spring 4 does not deviate from the groove surface track of the stepped lock core structure, guarantee the reliability of the locking, enhance the stability of the self-locking spring 4 during movement and locking, and further improve the overall performance of the locking mechanism.

[0047] The commutation contact mechanism is arranged below the button mechanism and includes a base 9, and a conductive member A 8, a conductive member B 10, and a conductive member C 17 arranged inside the base 9; the upper end of the conductive member A 8 is hooked and connected to one end of a hook spring 12, the other end of the hook spring 12 is hooked and connected to the middle of a moving contact group 11, the middle of the hook spring 12 is hinged and connected to a commutation pressing piece 13, and the bottom of the moving contact group 11 can be switched to contact and connect between the conductive member B 10 and the conductive member C 17;

[0048] Further, both the conductive member B 10 and the conductive member C 17 include a bearing body, the bearing body is in a horizontally extended form, and the two ends of the bearing body are respectively provided with an upwardly extending electrical connection docking portion and a downwardly extending base fixing portion; and, a limiting hole for limiting is opened on the bearing body.

[0049] The conductive member A 8 is in a hook structure, the bottom end of the hook structure is fixedly connected to the base 9, and the hook part at the top end is hooked and connected to one end of the hook spring 12.

[0050] The working principle of the commutation contact mechanism is as follows: In the initial state, the conductive member A 8 and the conductive member B 10 are conductively connected through the moving contact group 11 to form an initial circuit, and current can be transmitted through this path. When an external force is applied to press the button mechanism, the external force is sequentially transmitted to the lock spring piece 7 of the locking mechanism, causing it to move downward under force. The lock spring piece 7 drives the commutation pressing piece 13 cooperating with it to rotate around the conductive member A 8 as a fulcrum. As the rotation angle increases, the commutation pressing piece 13 pushes the hook spring 12 to deform, and the hook spring 12 pulls the moving contact group 11 to rotate and commutate synchronously. When the moving contact group 11 rotates to a specific position, its electrical connection docking portion with the conductive member B 10 is disconnected from contact, and at the same time, an electrical connection is established with the electrical connection docking portion of the conductive member C 17. At this time, the conductive member A 8 and the conductive member C 17 are conductively connected through the moving contact group 11 to form a new circuit path, completing the circuit switching function. When the external force is withdrawn, under the action of the reset compression spring 5, the lock spring piece 7 drives the commutation pressing piece 13 to reset, and the hook spring 12 and the moving contact group 11 move in the opposite direction. The moving contact group 11 recontacts the electrical connection docking portion of the conductive member B 10, and the circuit returns to the initial state, realizing the repeatable operation of the switch and the conversion of the circuit state.

[0051] Further, the conductive member A 8, the conductive member B 10, and the conductive member C 17 all penetrate the bottom end of the base 9, and epoxy resin glue is coated at the contact part between them and the base 9 for sealing. The epoxy resin glue has good insulation and sealing properties. Through this sealing treatment, on the one hand, it can prevent external impurities from entering the connection part between the conductive member and the base, avoiding electrical failures caused by impurities; on the other hand, it enhances the connection stability between the conductive member and the base, ensuring good electrical connection performance, and enabling the switch to work stably and reliably in the circuit.

[0052] Embodiment

[0053] Combined with such as Figure 3 Shown is a schematic diagram of the stepped lock core structure and the movement trajectory of locking and unlocking of the present invention. The working process of the present invention is as follows:

[0054] Initial state: The switch is in the initial closed state. The conductive member A 8 and the conductive member B 10 are conductively connected through the moving contact piece group 11 to form an initial circuit, and current can be transmitted through this path. At this time, the reset compression spring 5 is in a natural state. The self-locking spring 4 is located in groove A of the stepped locking structure of the lock spring piece 7. Components such as the lock spring piece 7 and the commutation pressure piece 13 are also in their initial positions, and the entire switch system is stable.

[0055] First press the metal cap: When pressing the metal cap 1 of the switch, the external force is sequentially transmitted to components such as the plastic button 2 and the lock spring piece 7 of the locking mechanism. During this process, the reset compression spring 5 is compressed and stores elastic potential energy. Due to the downward movement of the lock spring piece 7, the self-locking spring 4 slides from groove surface A over groove surface B and into groove surface C. During the sliding process of the self-locking spring 4, the auxiliary spring piece 6 on its back provides stable support for it to prevent deviation. At the same time, the lock spring piece 7 drives the commutation pressure piece 13 to rotate around the conductive member A 8. The commutation pressure piece 13 pushes the hook spring 12 to deform. The hook spring 12 pulls the moving contact piece group 11 to perform a rotation commutation, so that the electrical connection docking part between the moving contact piece group 11 and the conductive member B 10 is disconnected from contact, and an electrical connection is established with the electrical connection docking part of the conductive member C 17. At this time, the conductive member A 8 and the conductive member C 17 are conductively connected through the moving contact piece group 11 to form a new circuit, realizing the conversion of the switch circuit.

[0056] Self-locking process: First release the metal cap 1. When releasing the metal cap 1, under the action of the restoring force of the reset compression spring 5, the lock spring piece 7 moves upward. The self-locking spring 4 slides from groove surface C to groove surface D. Due to the matching structure between groove D and the self-locking spring 4, the self-locking spring 4 hooks the lock spring piece 7, so that the switch is stably maintained in the current state, realizing the self-locking function. At this time, even if it is slightly disturbed by an external force, due to the locking effect between the self-locking spring 4 and the lock spring piece 7, the switch will not easily change its state, ensuring the stability of the circuit state.

[0057] Further, press the metal cap for the second time. When the circuit of the switch needs to be converted again, press the metal cap 1 of the switch again. The reset compression spring 5 is compressed again, and the lock spring piece 7 moves downward, driving the self-locking spring 4 to slide from groove surface D to groove surface E. During this process, the limit block 19 plays a limiting role to ensure that the self-locking spring 4 slides along the established path and prevents it from deviating from the predetermined trajectory.

[0058] Unlocking and circuit reset process: Release the metal cap 1 for the second time and then release it again. Driven by the elastic force of the reset compression spring 5, the self-locking spring 4 returns from the groove surface E to the groove surface A through the groove surface F. At this time, the switch is unlocked. At the same time, the locking spring piece 7 drives the commutation pressure piece 13 to reset, and the hook spring 12 and the moving contact group 11 move in the opposite direction accordingly. The moving contact group 11 recontacts the conductive part B 10, and the circuit returns to the initial state, completing a complete action cycle. During the whole process, the sealing mechanism always maintains good sealing performance, effectively preventing foreign impurities such as dust and moisture from entering the switch interior and ensuring the stable operation of each component; the epoxy resin glue seals the contact parts of the conductive part A 8, the conductive part B 10 and the conductive part C 17 with the base 9, ensuring the reliability of the electrical connection and avoiding circuit failures caused by external factors.

[0059] Through the specific structural design and mutual cooperation of each mechanism, the fully sealed locking type push-button switch of the present invention not only realizes the fully sealed and locking functions, but also exhibits excellent performance in aspects such as reset and electrical connection, effectively solving various problems existing in traditional switches, and has high practical value and market promotion prospects.

Claims

1. A fully sealed and locked push-button switch, characterized in that, Comprising: A sealing mechanism, including a housing (15) and a sealing cover (14) connected above the housing (15); A button mechanism, disposed within the sealing mechanism, including a metal cap (1), a light-transmitting sheet (3) disposed within the metal cap (1), and a plastic button (2) disposed below the metal cap (1) and connected by snap riveting; A locking mechanism, disposed below the button mechanism, including a self-locking spring (4), a lock spring piece (7), a reset compression spring (5), and an auxiliary spring piece (6); the upper end of the self-locking spring (4) is in contact connection with the lock spring piece (7), and the lower end is inserted and connected to the conductive part B (10) of the commutation contact mechanism; the top end of the reset compression spring (5) is fixedly connected to the lock spring piece (7), and the bottom end is fixedly connected to the base (9) of the commutation contact mechanism; an auxiliary spring piece (6) is disposed on the back of the self-locking spring (4); A commutation contact mechanism, disposed below the button mechanism, including a base (9), and a conductive part A (8), a conductive part B (10), and a conductive part C (17) disposed within the base (9); the upper end of the conductive part A (8) is hooked and connected to one end of a hook spring (12), the other end of the hook spring (12) is hooked and connected to the middle of a moving contact piece group (11), the middle of the hook spring (12) is hinged to a commutation pressing piece (13), and the bottom of the moving contact piece group (11) can switch between contact connections with the conductive part B (10) and the conductive part C (17).

2. The fully sealed and locked push-button switch according to claim 1, characterized in that, The sealing cover (14) is a "bowl-shaped" structure for covering the metal cap (1) and the housing (15); The bowl mouth of the "bowl-shaped" structure is provided with a groove, and the housing (15) is provided with a boss matching the groove.

3. The fully-sealed locking push-button switch according to claim 1 or 2, characterized in that, The housing (15) is provided with a threaded screw rod, and a mounting nut (16) is screwed tightly to the screw rod, so that the groove at the bowl mouth of the sealing cover (14) is closely fitted with the boss of the housing (15), enhancing the sealing performance.

4. The fully sealed locking push-button switch according to claim 1, wherein, The lock spring piece (7) is provided with a groove surface of a stepped lock core structure, which includes: groove surface A (20), groove surface B (21), groove surface C (22), groove surface D (23), groove surface E (24), and groove surface F (25), and these groove surfaces are all arranged on the circumference of a heart-shaped convex block (18) and are lower than the convex block (18); the heights of groove surface B (21), groove surface C (22), groove surface D (23), and groove surface E (24) decrease in sequence; the height of groove surface E (24) is lower than that of groove surface F (25); the height of groove surface F (25) is higher than that of groove surface A (20); the height of groove surface A (20) is lower than that of groove surface B (21).

5. The fully sealed and locked push-button switch according to claim 1 or 4, characterized in that, The self-locking spring (4) is a "U"-shaped structure with an opening to the left, the end face of the upper leg is in fitting contact with the groove surface, and the lower leg is inserted into the inner hole of the conductive part B (10).

6. The fully sealed and locked push-button switch according to claim 1, characterized in that, The lock spring piece (7) is provided with a guiding hole, and the base (9) is provided with a limiting platform. The upper end of the reset compression spring (5) is inserted and fixed in the guiding hole, and the lower end is sleeved and fixed on the limiting platform.

7. The fully sealed and locked push-button switch according to claim 4, wherein, The groove width dimension of the groove surface is 0.01 mm to 0.03 mm larger than the diameter of the self-locking spring (4).

8. The fully sealed and locked push-button switch according to claim 1, wherein, The conductive part A (8), the conductive part B (10), and the conductive part C (17) all penetrate the bottom end of the base (9), and epoxy resin glue is coated at the contact part with the base (9) for sealing.

9. The fully sealed locking push button switch according to claim 4, wherein A limiting block (19) is provided between the groove surface C (22), the groove surface D (23) and the groove surface E (24).

10. A fully sealed locking type push-button switch according to claim 1, characterized in that: Both the conductive member B (10) and the conductive member C (17) include a carrier body, the carrier body is in a form extending horizontally, and an electrical connection docking portion extending upward and a base fixing portion extending downward are respectively provided at both ends of the carrier body; and, a limiting hole for limiting is provided on the carrier body. The conductive member A (8) is a hook structure, the bottom end of the hook structure is fixedly connected to the base (9), and the hook portion at the top end is hooked and connected to one end of the hook spring (12).

Images