Inductance type switch

Abstract

The utility model belongs to the technical field of switches, and particularly relates to an inductance type switch, in the application, an induction block moves in a through hole, when the induction block moves to an induction coil, the induction block changes the inductance value of the induction coil so as to realize signal communication, and when the induction block leaves the induction range of the induction coil, the inductance value of the induction coil recovers so as to realize signal communication. According to the inductance switch, the signal is transmitted to the corresponding receiving element through the induction plate, and the upper cover and the lower cover are used for protecting the induction block and preventing the induction block from being damaged when the inductance switch falls off or other accidents occur, so that the performance of the inductance switch is not influenced. The induction block does not generate hard friction with the induction coil, so that the induction block and the induction coil are not corroded by current in a long-time working state, and the performance of the inductance switch is not influenced.

Description

Technical Field

[0001] The utility model belongs to the technical field of switches, and particularly relates to an inductive switch. Background Art

[0002] A switch is a switch with a tiny contact interval and a quick-acting mechanism, and the switching action is performed through a specified stroke and force. It has the characteristics of small volume, high sensitivity, reliable action, etc., and is widely used in electronic devices, control systems, and various instruments to achieve functions such as automatic control and signal detection. The switch controls the on-off of the circuit through a tiny mechanical movement, and it has a driving rod on the outside, which is covered by a housing, and is widely used in the fields of electronic devices, communication devices, household appliances, automotive electronics, industrial control, etc.

[0003] Existing switches usually use two contacts to make contact to generate corresponding signals. However, the key to signal generation in existing switches lies in the contact of the two contacts. When the contacts make contact, current flows from one contact to the other. Over time, the current will corrode the contacts, resulting in poor contact between the contacts. Summary of the Utility Model

[0004] The purpose of the utility model is as follows: Based on the inventor's own practice and combined with the actual use situation, aiming at the defects existing in the prior art, the inventor designs an inductive switch to solve the technical problem that the contacts of existing switches will be corroded by current during long-term operation, resulting in poor contact between the contacts.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] An inductive switch, comprising an upper cover, a lower cover, an induction plate, and an induction component. The upper cover and the lower cover are cooperatively arranged. The induction plate abuts against the bottom of the lower cover. The lower cover has a through hole facing the induction plate. The induction component includes an induction block. The induction block is arranged in the through hole and moves in the through hole. The induction plate is provided with an induction hole. The induction plate is provided with an induction coil. The induction coil is coaxially arranged with the induction hole. The through hole and the induction hole are oppositely arranged.

[0007] Further, there is a receiving cavity between the upper cover and the lower cover, and the induction component is arranged in the receiving cavity.

[0008] Further, the sensing component includes a first fixing member, a second fixing member, and an elastic member. The elastic member is respectively clamped to the first fixing member and the second fixing member. The first fixing member and the second fixing member are respectively provided with a first fixing portion and a second fixing portion. The first fixing portion and the second fixing portion extend out of the lower cover and face the sensing plate. The sensing plate is provided with a first fixing hole and a second fixing hole corresponding to the first fixing portion and the second fixing portion. The first fixing portion and the second fixing portion are respectively placed in the first fixing hole and the second fixing hole.

[0009] Further, the first fixing member and the second fixing member are spaced apart. The first fixing member has a first card slot and a second card slot. The elastic member is clamped to the first card slot and the second card slot.

[0010] Further, the elastic member includes a first clamping portion, a second clamping portion, an abutting portion, and a connecting portion. The first clamping portion is clamped to the first card slot. The second clamping portion is clamped to the second card slot. The second clamping portion is arc-shaped. The connecting portion is connected to the end of the sensing block.

[0011] Further, the accommodating cavity has an opening. The opening is provided at the top of the upper cover. The opening communicates the accommodating cavity with the outside. An abutting member is movably arranged in the opening. The bottom of the abutting member abuts against the abutting portion.

[0012] Further, the sensing component further includes a third fixing member. A part of the third fixing member is placed in the accommodating cavity. The second fixing member and the third fixing member are arranged on both sides of the through hole. The second fixing member has a first limiting portion. The third fixing member has a second limiting portion. The first limiting portion and the second limiting portion are correspondingly arranged;

[0013] There is a limiting space between the first limiting portion and the second limiting portion. A buffer member is arranged on the elastic member. The buffer member is placed in the limiting space. The buffer member is arranged opposite to the first limiting portion and the second limiting portion.

[0014] Further, both ends of the elastic member are respectively clamped to the first fixing member and the second fixing member. The elastic member is arc-shaped. The elastic member has an inner concave surface facing the sensing plate and an outer convex surface facing the upper cover. The sensing block is arranged on the inner concave surface and abuts against the middle of the elastic member, and then abuts against the outer convex surface.

[0015] Further, the abutting member is provided with a waterproof member. The waterproof member is sleeved on the abutting member and a part of the waterproof member is placed in the opening. The waterproof member has a rubber structure that is wide at the top and narrow at the bottom.

[0016] Further, the upper cover is provided with a mounting hole and a pressing member. The pressing member includes a main body portion and a mounting portion. The mounting portion is placed in the mounting hole. The other side of the main body portion extends towards the abutting member and covers the abutting member. The main body portion contacts the top of the abutting member.

[0017] The beneficial effects of the present utility model are as follows. The inductive switch provided by the present utility model includes an upper cover, a lower cover, an induction plate, and an induction component. The upper cover and the lower cover are cooperatively arranged. The induction plate abuts against the bottom of the lower cover. The lower cover has a through hole arranged towards the induction plate. The induction component includes an induction block. The induction block is arranged in the through hole and moves in the through hole. The induction plate is provided with an induction hole. The induction plate is provided with an induction coil. The induction coil is coaxially arranged with the induction hole. The through hole and the induction hole are oppositely arranged. In this application, the induction block moves in the through hole. When the induction block moves to the position of the induction coil, the induction block changes the inductance of the induction coil, thereby realizing the connection of the signal. When the induction block leaves the induction range of the induction coil, the inductance of the induction coil is restored, thereby realizing the interruption of the signal. The signal is transmitted to the corresponding receiving element through the induction plate. The upper cover and the lower cover are used to protect the induction block, preventing damage to the induction block when the inductive switch drops or other accidents occur, thereby affecting the performance of the inductive switch. At the same time, in this application, since the induction block does not generate hard friction with the induction coil, there will be no current corroding the induction block and the induction coil during long-term working conditions, thereby preventing the performance of the inductive switch from being affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following will refer to the attached Figures 1 to 13 to describe the features, advantages, and technical effects of the exemplary embodiments of the present utility model.

[0019] Figure 1 is a schematic diagram of the overall structure of the inductive switch in the present utility model;

[0020] Figure 2 is a top view of the overall structure of the inductive switch in the present utility model

[0021] Figure 3 is Figure 2 a cross-sectional view taken along A-A in

[0022] Figure 4 is an assembly diagram of the elastic member in the present utility model;

[0023] Figure 5 is a schematic diagram of the overall structure of the elastic member in the present utility model;

[0024] Figure 6 is a schematic diagram of the overall structure of the lower cover in the present utility model;

[0025] Figure 7 It is a schematic diagram of the overall structure of the upper cover in the present utility model;

[0026] Figure 8 It is one of the schematic diagrams of the working principle in the present utility model;

[0027] Figure 9 It is the second schematic diagram of the working principle in the present utility model;

[0028] Figure 10 It is the third schematic diagram of the working principle in the present utility model;

[0029] Figure 11 It is a schematic diagram of the partial structure of the second embodiment in the present utility model;

[0030] Figure 12 It is a schematic diagram of the partial structure of the third embodiment in the present utility model;

[0031] Figure 13 It is a schematic diagram of the partial structure of the fourth embodiment in the present utility model.

[0032] In the figure: 1. Upper cover; 2. Lower cover; 3. Induction plate; 4. Induction component; 5. Accommodation cavity;

[0033] 11. Opening; 12. Abutting member; 13. Waterproof member; 14. Mounting hole; 15. Pressing member;

[0034] 151. Main body part; 152. Mounting part;

[0035] 21. Through hole;

[0036] 31. Induction hole; 32. Induction coil; 33. First fixing hole; 34. Second fixing hole;

[0037] 41. Induction block; 42. First fixing member; 43. Second fixing member; 44. Third fixing member; 45. Elastic member; 46. Limiting space; 47. Buffer member; 48a. Concave surface; 48b. Convex surface;

[0038] 421. First fixing part; 422. First clamping groove; 423. Second clamping groove; 424. Avoidance cavity;

[0039] 431. Second fixing part; 432. First limiting part;

[0040] 441. Second limiting part;

[0041] 451. First clamping part; 452. Second clamping part; 453. Abutting part; 454. Connecting part.

[0042] 1. Upper cover; 2. Lower cover; 3. Induction plate; 4. Induction component; 5. Accommodation cavity; 11. Opening; 12. Contact part; 13. Waterproof part; 14. Mounting hole; 15. Pressing part; 151. Main body part; 152. Mounting part; 21. Through hole; 31. Induction hole; 32. Induction coil; 33. First fixing hole; 34. Second fixing hole; 41. Induction block; 42. First fixing piece; 43. Second fixing piece; 44. Third fixing piece; 45. Elastic piece; 46. Limited space; 47. Buffer piece; 48a. Concave surface; 48b. Convex surface; 421. First fixing part; 422. First card slot; 423. Second card slot; 424. Avoidance cavity; 431. Second fixing part; 432. First limiting part; 441. Second limiting part; 451. First clamping part; 452. Second clamping part; 453. Contact part; 454. Connection part; 1111111. Me. Detailed implementation manner

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion.

[0044] In the description of the embodiments of this application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary-secondary relationship of the indicated technical features. In the description of the embodiments of this application, "a plurality of" means two or more unless otherwise specifically defined.

[0045] Referring to "embodiment" herein means that the specific features, structures or characteristics described in connection with the embodiment may be included in at least one embodiment of this application. The phrase appearing at various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments.

[0046] In the description of the embodiments of this application, the term "and / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, and there are multiple situations where A exists alone. In addition, the character " / " in this article generally means that the associated objects before and after are in an "or" relationship.

[0047] In the description of the embodiments of the present application, the orientation or positional relationship indicated by technical terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the embodiments of the present application.

[0048] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can also be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0049] The following is a further detailed description of the present utility model in conjunction with the attached Figures 1 to 13 drawings, but it is not a limitation to the present utility model.

[0050] Embodiment 1

[0051] As Figures 1 - 7 shown, the inductive switch includes an upper cover 1, a lower cover 2, a sensing plate 3, and a sensing component 4. The upper cover 1 and the lower cover 2 are cooperatively arranged. The sensing plate 3 abuts against the bottom of the lower cover 2. The lower cover 2 has a through hole 21 facing the sensing plate 3. The sensing component 4 includes a sensing block 41. The sensing block 41 is arranged in the through hole 21 and moves in the through hole 21. The sensing plate 3 is provided with a sensing hole 31. The sensing plate 3 is provided with a sensing coil 32. The sensing coil 32 is coaxially arranged with the sensing hole 31. The through hole 21 and the sensing hole 31 are oppositely arranged.

[0052] Specifically, the induction block 41 moves within the through hole 21. When the induction block 41 moves to the position of the induction coil 32, the induction block 41 changes the inductance of the induction coil 32, thereby achieving signal connection. When the induction block 41 leaves the induction range of the induction coil 32, the inductance of the induction coil 32 resumes, thereby achieving signal interruption. The signal is transmitted to the corresponding receiving element through the induction plate 3. The upper cover 1 and the lower cover 2 are used to protect the induction block 41 to prevent damage to the induction block 41 when the inductive switch falls or other accidents occur, thereby affecting the performance of the inductive switch. At the same time, in this application, since the induction block 41 does not generate hard friction with the induction coil 32, there will be no current corrosion to the induction block 41 and the induction coil 32 during long-term operation, thereby preventing the performance of the inductive switch from being affected.

[0053] In this embodiment, there is a receiving cavity 5 between the upper cover 1 and the lower cover 2, and the induction component 4 is arranged in the receiving cavity 5.

[0054] Specifically, since the induction component 4 is one of the core components of the inductive switch in this application, it is necessary to protect the inductive switch to prevent the induction component 4 from being damaged. In this embodiment, the induction component 4 is arranged in the receiving cavity 5 between the upper cover 1 and the lower cover 2, and the receiving cavity 5 isolates the induction component 4 from the external environment, thereby protecting the induction component 4.

[0055] In this embodiment, the induction component 4 includes a first fixing member 42, a second fixing member 43, and an elastic member 45. The elastic member 45 is respectively clamped with the first fixing member 42 and the second fixing member 43. The first fixing member 42 and the second fixing member 43 are respectively provided with a first fixing portion 421 and a second fixing portion 431. The first fixing portion 421 and the second fixing portion 431 extend out of the lower cover 2 and face the induction plate 3. The induction plate 3 is provided with a first fixing hole 33 and a second fixing hole 34 corresponding to the first fixing portion 421 and the second fixing portion 431, and the first fixing portion 421 and the second fixing portion 431 are respectively placed in the first fixing hole 33 and the second fixing hole 34.

[0056] Specifically, the lower cover 2 is disposed on the induction plate 3, and the through hole 21 and the induction hole 31 are correspondingly disposed. To prevent the positions of the through hole 21 and the induction hole 31 from being misaligned and to limit the position of the lower cover 2, a first fixing member 42 and a second fixing member 43 are provided inside the lower cover 2. The lower ends of the first fixing member 42 and the second fixing member 43 are provided with a first fixing portion 421 and a second fixing portion 431. The first fixing portion 421 and the second fixing portion 431 are integrally provided with the first fixing member 42 and the second fixing member 43 respectively. The induction plate 3 is provided with a first fixing hole 33 and a second fixing hole 34. The first fixing portion 421 and the second fixing portion 431 are placed in the first fixing hole 33 and the second fixing hole 34. The position of the entire lower cover 2 is limited by the first fixing portion 421 and the second fixing portion 431 to prevent the position of the lower cover 2 from being misaligned.

[0057] In this embodiment, the first fixing member 42 and the second fixing member 43 are spaced apart. The first fixing member 42 has a first card slot 422 and a second card slot 423. The elastic member 45 is snap - connected to the first card slot 422 and the second card slot 423.

[0058] Specifically, the first fixing member 42 and the second fixing member 43 are spaced apart. The first fixing member 42 fixes and supports the end of the elastic member 45, and the second fixing member 43 fixes and supports the middle of the elastic member 45. By fixing and supporting different positions of the elastic member 45 through the first fixing member 42 and the second fixing member 43, the elastic member 45 is fixed more stably. At the same time, the first card slot 422 and the second card slot 423 snap - connect to the elastic member 45. Snap - connection through the card slots does not affect the elasticity of the entire elastic member 45. The elastic member 45 moves with the connection points with the first fixing member 42 and the second fixing member 43 as the fulcrums, ensuring that the elastic member 45 does not break away from the limit when moving, so that the elastic member 45 always moves within the fixed range.

[0059] In this embodiment, the elastic member 45 includes a first card portion 451, a second card portion 452, an abutting portion 453, and a connecting portion 454. The first card portion 451 is snap - connected to the first card slot 422, the second card portion 452 is snap - connected to the second card slot 423. The second card portion 452 is arc - shaped, and the connecting portion 454 is connected to the end of the induction block 41.

[0060] Specifically, the first card portion 451 is placed at the end of the elastic member 45. One end of the second card portion 452 is connected to the elastic member 45, and the other end of the second card portion 452 is snap - connected to the second card slot 423. When the elastic member 45 is pressed downward, the end of the elastic member 45 moves downward, and the second card portion 452 deforms. When the pressing ends, the second card portion 452 restores and drives the elastic connecting portion 454 to move upward to the initial position. By pressing the elastic member 45, the signal conduction and interruption states of the switch are realized.

[0061] In this embodiment, the accommodation cavity 5 has an opening 11. The opening 11 is provided at the top of the upper cover 1. The opening 11 communicates the accommodation cavity 5 with the outside. An abutting member 12 is movably arranged in the opening 11, and the bottom of the abutting member 12 abuts against the abutting portion 453.

[0062] Specifically, the abutting member 12 is an externally driven member. By pressing the abutting member 12, the abutting member 12 transmits the force to the elastic member 45, thereby realizing the deformation of the elastic member 45. By arranging the abutting member 12 in the opening 11, the horizontal direction of the abutting member 12 is limited, so that the abutting member 12 always moves up and down. A cavity-avoiding cavity 424 is provided in the first fixing member 42. The cavity-avoiding cavity 424 is arranged between the first clamping groove 422 and the second clamping groove 423, and the cavity-avoiding cavity 424 is correspondingly arranged with the abutting member 12. When the abutting member 12 moves downward, it is placed in the cavity-avoiding cavity 424, and the cavity-avoiding cavity 424 is used to accommodate the abutting member 12.

[0063] In this embodiment, the sensing component 4 further includes a third fixing member 44. A part of the third fixing member 44 is placed in the accommodation cavity 5. The second fixing member 43 and the third fixing member 44 are arranged on both sides of the through hole 21. The second fixing member 43 has a first limiting portion 432, and the third fixing member 44 has a second limiting portion 441. The first limiting portion 432 and the second limiting portion 441 are correspondingly arranged;

[0064] There is a limiting space 46 between the first limiting portion 432 and the second limiting portion 441. A buffer member 47 is arranged on the elastic member 45. The buffer member 47 is placed in the limiting space 46, and the buffer member 47 is arranged opposite to the first limiting portion 432 and the second limiting portion 441.

[0065] Specifically, the elastic member 45 is placed between the first limiting portion 432 and the second limiting portion 441. In order to prevent the deformation of the elastic member 45 from exceeding the bearing range of the elastic member 45 when being squeezed and to fix the moving range of the elastic member 45 and the sensing block 41, it is restricted by the first limiting portion 432 and the second limiting portion 441. The first limiting portion 432 is placed on the lower side of the elastic member 45, and the second limiting portion 441 is placed on the upper side of the elastic member 45. When the elastic member 45 is squeezed downward, the connecting portion 454 moves downward. Finally, the elastic member 45 contacts the first limiting portion 432, thereby limiting the farthest downward moving position of the connecting portion 454. When the abutting member 12 is released, the elastic member 45 moves upward due to the rebound of the second clamping portion 452, preventing the elastic member 45 from detaching due to excessive elastic force of the elastic member 45. Therefore, the second limiting portion 441 is provided. When the elastic member 45 rebounds and moves upward, it contacts the second limiting portion 441, thereby limiting the farthest upward moving distance of the elastic member 45.

[0066] Meanwhile, the buffer member 47 moves in the defined space 46 following the elastic member 45. The defined space 46 not only limits the moving distance of the elastic member 45, but also serves to control the moving distance of the sensing block 41. When the buffer member 47 contacts the first limiting portion 432, the end of the sensing block 41 is exactly within the sensing range of the induction coil 32, and when the buffer member 47 contacts the second limiting portion 441, the sensing block 41 moves out of the sensing range of the induction coil 32.

[0067] Since the elastic member 45 is in contact with the first limiting portion 432 and the second limiting portion 441 for a long time, there will inevitably be wear and tear. Therefore, a buffer member 47 is provided on the elastic member 45. The buffer member 47 is made of rubber. The buffer member 47 can buffer the impact force when the elastic member 45 contacts the first limiting portion 432 and when the elastic member 45 contacts the second limiting portion 441, further protecting the elastic member 45.

[0068] In this embodiment, the induction coil 32 can be arranged in the induction hole 31, or can be arranged in the induction plate 3 and arranged around the induction hole 31 as the axis, or can be arranged on the upper side or the lower side of the induction plate 3, or both the upper side and the lower side of the induction plate 3 are provided. The specific arrangement method is set according to the working requirements.

[0069] As Figures 11 - 13 shown in the working principle of the present utility model, corresponding functions are realized by the movement of the sensing block 41.

[0070] Among them Figure 12 and Figure 13 the directions indicated by the arrows are the moving directions of the sensing block 41.

[0071] Embodiment 2

[0072] As Figure 8 shown, the difference between this embodiment and Embodiment 1 is that both ends of the elastic member 45 are clamped to the first fixing member 42 and the second fixing member 43 respectively. The elastic member 45 is arc-shaped. The elastic member 45 has an inner concave surface 48a facing the induction plate 3 and an outer convex surface 48b facing the upper cover 1. The sensing block 41 is arranged on the inner concave surface 48a and abuts against the middle of the elastic member 45, while abutting against the outer convex surface 48b.

[0073] Specifically, in this embodiment, the fixing method of the elastic member 45 and the position where the through hole 21 is provided are different from those in the first embodiment. In this embodiment, the through hole 21 is provided between the first fixing member 42 and the second fixing member 43, and both ends of the elastic member 45 are respectively clamped to the first fixing member 42 and the second fixing member 43. The sensing block 41 abuts against the middle part of the elastic member 45. In this embodiment, by this method, when the abutting member 12 is pressed, the sensing block 41 moves vertically up and down, and the sensing block 41 can be better placed in the sensing hole 31. In the first embodiment, the elastic member 45 moves in an arc with the first clamping portion 451 and the second clamping portion 452 as the axis, and at the same time drives the sensing block 41 to move in an arc. Even if the amplitude of the arc movement is not large, there will still be some deviations when the sensing block 41 moves. However, by driving the sensing block 41 in the way of this embodiment, the sensing block 41 moves vertically up and down without deviation, improving the consistency of the movement of the sensing block 41.

[0074] At the same time, in this embodiment, the third fixing member 44 in the first embodiment is not provided.

[0075] Other structures are the same as those in the first embodiment and will not be elaborated too much in this embodiment.

[0076] Embodiment Three

[0077] As Figure 9 shown, the difference between this embodiment and the first embodiment is that the abutting member 12 is provided with a waterproof member 13. The waterproof member 13 is sleeved on the abutting member 12 and a part of the waterproof member 13 is placed in the opening 11. The waterproof member 13 has a rubber structure that is wider at the top and narrower at the bottom.

[0078] Specifically, this inductive switch will come into contact with liquids in some application scenarios, and the liquid will cause problems such as poor induction or leakage in the inductive switch. Setting the waterproof member 13 at the opening 11 can prevent the liquid from entering the accommodation cavity 5 and causing the inductive switch to fail.

[0079] Specifically, the bottom of the waterproof member 13 is fixedly connected to the abutting member 12. When the abutting member 12 is pressed, the abutting member 12 drives the waterproof member 13 to move downward. Since the diameter of the upper part of the waterproof member 13 is larger than the diameter of the opening 11, when the waterproof member 13 moves towards the opening 11, the opening 11 compresses the waterproof member 13, and the outer wall of the waterproof member 13 fits tightly with the opening 11 to prevent gaps that would allow liquid to enter the accommodation cavity 5.

[0080] At the same time, in this embodiment, the third fixing member 44 in the first embodiment is not provided.

[0081] Other structures are the same as those in the first embodiment and will not be elaborated too much in this embodiment.

[0082] Embodiment Four

[0083] AsFigure 10 As shown in the figure, the difference between this embodiment and the first embodiment is that the upper cover 1 is provided with a mounting hole 14 and a pressing member 15. The pressing member 15 includes a main body portion 151 and a mounting portion 152. The mounting portion 152 is placed in the mounting hole 14. The other side of the main body portion 151 extends towards the abutting member 12 and covers the abutting member 12. The main body portion 151 contacts the top of the abutting member 12.

[0084] Specifically, in this embodiment, a pressing member 15 for assisting in pressing is provided. The mounting portion 152 of the pressing member 15 is placed in the mounting hole 14, and the entire pressing member 15 is fixed through the mounting hole 14 to prevent displacement or deviation of the pressing member 15, which may cause it to fail to assist in pressing. The main body portion 151 abuts against the upper side of the abutting member 12, and the stress area of the abutting member 12 is increased through the main body portion 151, enabling the user to more conveniently press the abutting member 12.

[0085] At the same time, in this embodiment, the third fixing member 44 in the first embodiment is not provided.

[0086] The other structures are the same as those in the first embodiment and will not be elaborated here too much.

[0087] In addition, it should be understood that although this specification is described according to the embodiments, not each embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should view the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0088] According to the disclosure and teachings of the above specification, those skilled in the art of the present invention can also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the above specific embodiments. Any obvious improvements, substitutions or variations made by those skilled in the art based on the present invention belong to the protection scope of the present invention. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present invention.

Claims

1. Inductive switch, characterized in that: It includes an upper cover, a lower cover, a sensing plate and a sensing component. The upper cover and the lower cover are cooperatively arranged. The sensing plate abuts against the bottom of the lower cover. The lower cover has a through hole arranged towards the sensing plate. The sensing component includes a sensing block. The sensing block is arranged in the through hole and moves in the through hole. The sensing plate is provided with a sensing hole. The sensing plate is provided with a sensing coil. The sensing coil is coaxially arranged with the sensing hole. The through hole and the sensing hole are oppositely arranged.

2. The inductive switch according to claim 1, characterized in that: There is a receiving cavity between the upper cover and the lower cover. The sensing component is arranged in the receiving cavity.

3. The inductive switch according to claim 2, characterized in that: The sensing component includes a first fixing member, a second fixing member and an elastic member. The elastic member is respectively clamped with the first fixing member and the second fixing member. The first fixing member and the second fixing member are respectively provided with a first fixing portion and a second fixing portion. The first fixing portion and the second fixing portion extend out of the lower cover and towards the sensing plate. The sensing plate is provided with a first fixing hole and a second fixing hole corresponding to the first fixing portion and the second fixing portion. The first fixing portion and the second fixing portion are respectively placed in the first fixing hole and the second fixing hole.

4. The inductive switch according to claim 3, wherein: The first fixing member and the second fixing member are arranged at intervals. The first fixing member has a first clamping groove and a second clamping groove. The elastic member is clamped with the first clamping groove and the second clamping groove.

5. The inductive switch according to claim 4, characterized in that: The elastic member includes a first clamping portion, a second clamping portion, an abutting portion and a connecting portion. The first clamping portion is clamped in the first clamping groove. The second clamping portion is clamped in the second clamping groove. The second clamping portion is arc-shaped. The connecting portion is connected to the end of the sensing block.

6. The inductive switch according to claim 5, characterized in that: The receiving cavity has an opening. The opening is arranged at the top of the upper cover. The opening communicates the receiving cavity with the outside. An abutting member is movably arranged in the opening. The bottom of the abutting member abuts against the abutting portion.

7. The inductive switch according to claim 6, characterized in that: The sensing component further includes a third fixing member. A part of the third fixing member is placed in the receiving cavity. The second fixing member and the third fixing member are arranged on both sides of the through hole. The second fixing member has a first limiting portion. The third fixing member has a second limiting portion. The first limiting portion and the second limiting portion are correspondingly arranged; There is a limiting space between the first limiting portion and the second limiting portion. A buffer member is arranged on the elastic member. The buffer member is placed in the limiting space. The buffer member is oppositely arranged with the first limiting portion and the second limiting portion.

8. The inductive switch according to claim 3, characterized in that: Both ends of the elastic member are respectively clamped with the first fixing member and the second fixing member. The elastic member is arc-shaped. The elastic member has an inner concave surface arranged towards the sensing plate and an outer convex surface arranged towards the upper cover. The sensing block is arranged on the inner concave surface and abuts against the middle of the elastic member and then abuts against the outer convex surface.

9. The inductive switch according to claim 6, characterized in that: The abutting member is provided with a waterproof member. The waterproof member is sleeved on the abutting member and a part of the waterproof member is placed in the opening. The waterproof member has a rubber structure that is wide at the top and narrow at the bottom.

10. The inductive switch according to claim 6, characterized in that: The upper cover is provided with a mounting hole and a pressing member. The pressing member includes a main body portion and a mounting portion. The mounting portion is placed in the mounting hole. The other side of the main body portion extends towards the abutting member and covers the abutting member. The main body portion contacts the top of the abutting member.

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