Push plate switch structure with locking mechanism and demarcation device

Abstract

The utility model relates to the technical field of demarcation instruments, in particular to a push plate switch structure with a locking mechanism and a demarcation instrument thereof, which comprises a push plate, the push plate is arranged in a casing of the demarcation instrument and can slide along a sliding path, a microswitch is arranged at the terminal position of the sliding path and used for controlling on and off of a circuit, and the push plate switch structure is further provided with a wavy surface matching structure. The push plate can be in a first locking state; an elastic avoiding structure is further arranged in the sliding path, a pit structure corresponding to the elastic avoiding structure is arranged in the shell and used for limiting embedding of the elastic avoiding structure, and the elastic avoiding structure can be compressed and bounced into the pit structure when the push plate pushes the elastic avoiding structure to achieve a second locking state. The push plate switch structure can be applied to equipment needing physical switch control and transportation safety protection, and the problems that an existing push plate switch structure is not firm in locking, short in service life and poor in user experience are solved.

Description

Technical Field

[0001] This utility model relates to the field of line projector switch technology, specifically a push plate switch structure with a locking mechanism and a line projector. Background Technology

[0002] Currently, push-plate switches are commonly used in some mechanical or electronic devices for on / off control. However, traditional push-plate switches have the following problems: 1. Insecure locking: Although they use a wave-shaped surface fit structure, inconsistent angles (inclinations) can easily lead to excessive pushing force or incomplete locking. 2. Prone to detachment due to drops: During transportation or packaging, external impacts can cause the original snap-fit ​​structure to dislodge, resulting in switch failure. 3. Plastic aging and deformation: Prolonged use or high-temperature aging can cause deformation of switch components, affecting the locking function. 4. Poor user experience: Traditional structures lack a rebound mechanism, resulting in poor feel and an unsatisfactory user experience. Therefore, it is necessary to propose an improved push-plate switch structure to enhance locking stability, improve safety, and enhance user experience. This is especially relevant for devices such as laser levelers (also known as floor / wall levelers or laser levels), where such a technical solution is lacking. Utility Model Content

[0003] To overcome the problems of poor locking, short service life, and poor user experience in existing push-plate switch structures, this invention provides a push-plate switch structure with an elastic locking buffer mechanism.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A push-plate switch structure with a locking mechanism includes:

[0006] A push plate, which is mounted on the housing of the line projector and can slide along a sliding path;

[0007] A micro switch, installed inside the housing and located at the end of the sliding path, is used to control the on / off state of the circuit;

[0008] The push plate and the outer shell have a wave-shaped surface mating structure, which enables the push plate to form a first locking state relative to the outer shell;

[0009] A spring-avoiding structure and a recessed structure for defining the embedding of the spring-avoiding structure are provided in the sliding path;

[0010] The spring-loaded structure can be compressed and spring into the recessed structure when the push plate is pushed, thus achieving the second locking state;

[0011] In the second locked state, the push plate abuts against and triggers the micro switch.

[0012] Furthermore, the spring-loaded structure includes an elastic tongue, which is integrally formed with the push plate or the outer shell.

[0013] Furthermore, the elastic tongue is made of plastic or metal sheet, and the elastic tongue has protrusions that cooperate with the recessed structure.

[0014] Furthermore, the recessed structure is a stepped groove or limiting groove formed on the inner wall of the outer shell or on the push plate.

[0015] Furthermore, the slope angle of the wavy surface mating structure is between 30° and 50°.

[0016] Furthermore, the wave-shaped surface mating structure includes an elastic wave-shaped protrusion on the push plate and a positioning piece on the inner wall of the outer shell, the positioning piece having a wave-shaped surface, and the wave-shaped protrusion mating with the wave-shaped surface.

[0017] Furthermore, the push plate has a slider, and the inner wall of the outer casing has a guide groove that cooperates with the slider.

[0018] Furthermore, the outer casing is provided with a sliding groove for the push plate to slide, the sliding groove being used to provide the area required for the sliding path.

[0019] To achieve the above objectives, this utility model also provides the following technical solution:

[0020] A line projector includes the aforementioned push-plate switch structure with a locking mechanism.

[0021] Furthermore, a bracket is installed inside the outer casing, and the cross shaft is hinged to the bracket through a set of shaft heads. The cross shaft is hinged to the pendulum body through another set of shaft heads. A horizontal laser tube and a vertical laser tube are installed on the pendulum body. A pusher block is installed on the pusher plate. The top of the pusher block has a wave-shaped protrusion, and the side of the pusher block has a holding arm for gripping or releasing the pendulum body.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] This invention utilizes a wave-shaped surface mating structure and a spring-loaded structure in conjunction with a recessed structure to achieve dual locking of the push plate in both the use and transport states. The spring-loaded structure provides the push plate with good rebound force, improving the user experience without increasing mold manufacturing costs or assembly difficulty. It is easy to install and suitable for minor adjustments to existing molds. It significantly reduces the probability of switch malfunction due to drops or aging. The wave-shaped surface mating structure has a mating angle between 30° and 50°, avoiding problems such as excessive pushing force or incomplete locking when the push plate is pushed, balancing pushing force and feel, thereby improving the user experience and enhancing equipment stability and safety. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model.

[0025] Figure 2 This utility model Figure 1 A diagram showing the result after removing the push plate.

[0026] Figure 3 This utility model Figure 1 A schematic diagram after removing some components.

[0027] Figure 4 This utility model Figure 3 A schematic diagram after removing some components.

[0028] Figure 5 This utility model Figure 3 A diagram showing the body swinging after the middle arm is released.

[0029] Figure 6 This utility model Figure 5 A schematic diagram after removing some components.

[0030] Figure 7 This is a schematic diagram of the overall structure of the push plate of this utility model.

[0031] Figure 8 This utility model Figure 4 A schematic diagram after removing some components.

[0032] Figure 9 This utility model Figure 6 A schematic diagram after removing some components.

[0033] Figure 10 This is a schematic diagram of the structure of Embodiment 2 of this utility model.

[0034] Figure 11 This utility model Figure 10 A schematic diagram after removing some components.

[0035] In the diagram: 1-Outer shell, 2-Push plate, 3-Bracket, 4-Swing body, 5-Horizontal laser tube, 6-Vertical laser tube, 7-Cross shaft, 8-Push block, 9-Holding arm, 10-Wave-shaped protrusion, 11-Elastic tongue, 12-Positioning piece, 13-Dental structure, 14-Protrusion, 15-Spring-avoiding structure, 16-Base, 17-Wave-shaped surface, 18-Micro switch, 19-Slider, 20-Guide groove, 21-Battery, 22-Protective window, 23-Slide groove, 24-Display screen, 25-Base support, 26-Outer ring, 27-Through hole, 28-Counterweight metal ring, 29-Conductive silicone ring, 30-Magnetic ring. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] In the description of this utility model, it should be noted that the terms "upper end," "lower end," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] Example 1

[0040] Please see Figures 1 to 9 This utility model provides a technical solution:

[0041] A push-plate switch structure with a locking mechanism includes:

[0042] Push plate 2, which is mounted on the housing 1 of the line projector and can slide along the sliding path;

[0043] A micro switch 18 is installed inside the housing 1 and located at the end of the sliding path, and is used to control the on / off state of the circuit.

[0044] The push plate 2 and the outer shell 1 have a wave-shaped surface mating structure, which enables the push plate 2 to form a first locking state relative to the outer shell 1;

[0045] A spring-avoiding structure 15 and a recessed structure 13 for defining the embedment of the spring-avoiding structure 15 are provided in the sliding path;

[0046] When the push plate 2 pushes, the spring-avoiding structure 15 can be compressed and spring into the recessed structure 13 to achieve the second locking state.

[0047] In the second locked state, the push plate 2 abuts against and triggers the micro switch 18, which, through the control of the PCB board of the line projector (not shown in the figure), keeps the line projector circuit in the open state and prevents the line projector from starting.

[0048] This utility model, such as Figure 1 As shown, the push plate 2 can be freely pushed relative to the arrows A and B in the outer casing 1, and the on / off control of the line projector circuit can be realized by contacting and disengaging from the micro switch 18.

[0049] The push plate 2 and the outer shell 1 have a wave-shaped surface mating structure. This wave-shaped surface mating structure serves as a physical locking mechanism to lock the push plate 2 in the first locking state. At this time, the push plate 2 is in the "closed" state, which prevents or avoids the swing body 4 from swinging relative to the bracket 3 during transportation, thereby generating "clanging" noise and vibration.

[0050] The micro switch 18 is installed inside the housing 1 and located on the sliding path. When the push plate 2 is pushed into place (i.e., the push plate 2 moves to the locked state in the direction of arrow B and the push plate is disengaged from the micro switch 18), the line projector is automatically powered on.

[0051] The spring-loaded structure 15 is an elastic structure set on the push plate 2 (or the inner wall of the outer shell 1). After the push plate 2 is pushed past a specific position, the spring-loaded structure is forced into the recessed structure 13, forming a second locking state. In the second locking state, the locking effect between the push plate 2 and the outer shell 1 is better, forming a double locking. This allows the holding arm 9 to hold the swing body 4 tightly relative to the bracket 3 (the base 25), which can prevent the original snap-fit ​​structure from jumping off due to external impact during transportation or packaging, causing the push plate switch to fail. It also prevents the original snap-fit ​​structure from deforming due to long-term use or high-temperature aging, affecting the locking function. This solves the problem of poor user experience: the traditional structure lacks a rebound mechanism, resulting in poor feel and unsatisfactory user experience, while maintaining a good feel when pushing the plate 2.

[0052] Specifically, such as Figure 4 and Figure 7 As shown, the spring-loaded structure 15 is an elastic tongue 11, which is integrally formed with the push plate 2 (or the outer shell 1). The elastic tongue 11 is made of plastic or metal sheet, and has a protrusion 14 that cooperates with the recess structure 13. The recess structure 13 is a stepped groove or limiting groove formed on the inner wall of the outer shell 1 or the push plate 2.

[0053] The ballistic shield structure is preferably an elastomer integrally injection molded onto the push plate or (or outer shell 1) and has a preset deformation recovery force.

[0054] Specifically, such as Figure 7 and Figure 8 As shown, the slope angle of the wave-shaped surface mating structure is between 30° and 50°. The wave-shaped surface mating structure includes an elastic wave-shaped protrusion 10 on the push plate 2 and a positioning piece 12 on the inner wall of the outer shell 1. The positioning piece 12 has a wave-shaped surface 17, and the wave-shaped protrusion 10 mates with the wave-shaped surface 17.

[0055] Because the elastic tongue 11 is used in conjunction with the stepped groove or the limiting groove, it can not only achieve a second stable locking of the push plate 2, but also push the push plate 2 with a little force. The elastic tongue 11 can come out from the stepped groove or the limiting groove, thereby releasing the gripping arm 9 on the swing body 4.

[0056] The angle should be between 30° and 50° to avoid excessive force or loose locking, balancing force and feel, thereby improving the user experience.

[0057] Specifically, such as Figure 7 and Figure 9 As shown, the push plate 2 has a slider 19, and the inner wall of the outer shell 1 has a guide groove 20 that cooperates with the slider 19. Through the cooperation between the slider 19 and the guide groove 20, the push plate 2 can be smoothly pushed along the sliding path on the outer shell 1.

[0058] Specifically, such as Figure 1 and Figure 2 As shown, the outer casing 1 has a sliding groove 23 for the push plate 2 to slide. The sliding groove 23 provides the area required for the sliding path. The push plate 2 is pushed in the sliding groove 23 along the directions of arrows A and B. Since the sliding groove 23 has a certain length, a sliding path is formed so that the push plate 2 can slide along the sliding path, thereby achieving the purpose of the arm 9 to tighten or loosen the swing body 4.

[0059] like Figure 1 As shown, when the push plate 2 is pushed towards arrow A, the wave-shaped surface mating structure locks the push plate 2 into the first locked state. At this time, the push plate 2 is in the "closed" state, preventing or avoiding the swinging of the pendulum 4 relative to the bracket 3 during transportation, which would cause a "clanging" noise and vibration. At the same time, the spring-loaded structure 15 enters the recessed structure 13 to form the second locked state. In the second locked state, the locking effect between the push plate 2 and the outer shell 1 is better, forming a double lock and achieving a second stable lock. The (laser) projector, through the double locking design, keeps the push plate 2 stable during transportation or drops, preventing accidental activation or damage to internal components.

[0060] This embodiment provides a push-plate switch structure with an improved locking mechanism, which can be applied to equipment requiring physical switch control and transportation safety protection. It overcomes the problems of existing push-plate switch structures such as poor locking, short service life, and poor user experience, and is especially suitable for use in laser line projectors, a type of measurement auxiliary equipment.

[0061] A line projector includes the aforementioned push-plate switch structure with a locking mechanism.

[0062] The push-plate switch structure with locking mechanism includes: a push plate 2 mounted on the housing, which can reciprocate or swing between an active state and an off state; and a micro switch 18 disposed at the end of the sliding path (i.e., located at...). Figure 1 and Figure 4 (As shown by arrow A in the diagram), when the push plate 2 moves to the working position, it is energized; a wave-shaped surface mating structure is located between the push plate 2 and the outer casing 1 to provide the first physical damping and the first locking state; a spring-loaded structure 15 is located at a key position in the movement path of the push plate, and the recessed structure 13 is inserted into the spring-loaded structure 15 after the push plate 2 is pushed into place to achieve the second stable locking; the line projector, through the dual locking design of the first locking state and the second locking state, keeps the push plate stable during transportation or drops, preventing accidental activation or damage to internal components.

[0063] Specifically, a bracket 3 is installed inside the housing 1 of the projector. The cross shaft 7 is hinged to the bracket 3 through a set of shaft heads. The cross shaft 7 is hinged to the pendulum body 4 through another set of shaft heads. A horizontal laser tube 5 and a vertical laser tube 6 are installed on the pendulum body 4. A pusher block 8 is installed on the pusher plate 2. The top of the pusher block 8 has a wave-shaped protrusion 10. The side of the pusher block 8 has a gripping arm 9 for gripping or releasing the pendulum body 4.

[0064] This invention comprises two horizontal laser tubes 5 and two vertical laser tubes 6. Except for the vertical laser tube 6 located at the base 16, each of the other three laser tubes has a corresponding protective window 22, which is mounted on the outer casing 1. The four sides of the protective window 22 are glass that allows laser light to pass through. The protective window 22 and the outer casing 1 are assembled via a stop joint and sealed with a gasket, effectively preventing dust and water from entering the outer casing 1 and ensuring that the laser light can always be clearly transmitted.

[0065] The cross shaft 7 is a two-dimensional universal joint. The pendulum 4 is hinged to the bracket 3 through the cross shaft, so that the pendulum 4 can always be installed vertically on the bracket 3 by its own weight.

[0066] In this invention, the side of the outer casing 1 is also equipped with a power supply 21 for powering the line projector and a display screen 24 for displaying data.

[0067] Example 2

[0068] Please see Figures 10 to 11 This utility model provides a technical solution:

[0069] The bracket 3 in this embodiment is further described as follows: the bracket 3 is hollow in the middle, with an outer ring 26 at the top and a base 25 at the bottom. Both the top and bottom of the bracket 3 have through holes 27 for the pendulum body 4 to pass through and swing.

[0070] A counterweight metal ring 28 and a conductive silicone ring 29 are fitted at the lower end of the pendulum body 4. The conductive silicone ring 29 is located below the counterweight metal ring 28. A magnetic ring 30 is fitted inside the through hole 27 of the base 25. The counterweight metal ring 28 is used for swinging, and the magnetic ring 30 located below the counterweight metal ring 28 helps the counterweight metal ring 28 and the pendulum body 4 to swing to a stable position more quickly. The conductive silicone ring 29 serves to prevent the pendulum body 4 from impacting, and an alarm is triggered when the pendulum body 4 tilts during operation.

[0071] The line projector of this utility model, except for the parts described herein, is the same as the prior art (such as the multi-directional counterweight adjustable single-clamp laser level disclosed in authorization announcement number CN216593379U, the mini floor and wall leveler with a rotating base with a built-in locking device disclosed in authorization announcement number CN217634656U, and the leveler optimized switch disclosed in authorization announcement number CN221079875U, etc.), and will not be described in detail here.

[0072] Compared with the prior art, this utility model has the following advantages: the wavy surface and the spring-loaded structure cooperate with the recessed structure to provide a dual locking mechanism, which improves the stability during transportation and use; the spring-loaded structure provides a good rebound feel and enhances the operating experience; the structure is simple, no additional parts or complex molds are required, and the cost is low; it has good anti-aging performance and the locking performance is stable and reliable during long-term use; it is easy to install, adapts to the original product platform and mold, and is suitable for industrial promotion.

[0073] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A push-plate switch structure with a locking mechanism, characterized in that, include: Push plate (2), which is mounted on the housing (1) of the line projector and can slide along the sliding path; A micro switch (18) is installed inside the housing (1) and located at the end of the sliding path, and is used to control the circuit on and off; The push plate (2) and the outer shell (1) have a wave-shaped surface mating structure, which enables the push plate (2) to form a first locking state relative to the outer shell (1); A spring-avoiding structure (15) and a recessed structure (13) for defining the embedding of the spring-avoiding structure (15) are provided in the sliding path. When the push plate (2) pushes the spring-avoiding structure (15), it can be compressed and spring into the recessed structure (13) to achieve the second locking state; In the second locked state, the push plate (2) abuts against and triggers the micro switch (18).

2. The push-plate switch structure with a locking mechanism as described in claim 1, characterized in that, The spring-loaded structure (15) includes an elastic tongue (11), which is integrally formed with the push plate (2) or the outer shell (1).

3. The push-plate switch structure with a locking mechanism as described in claim 2, characterized in that, The elastic tongue (11) is made of plastic or metal sheet, and the elastic tongue (11) has a protrusion (14) that matches the recess structure (13).

4. The push-plate switch structure with a locking mechanism as described in claim 1, characterized in that, The recessed structure (13) is a stepped groove or limiting groove opened on the inner wall of the outer shell (1) or the push plate (2).

5. The push-plate switch structure with a locking mechanism as described in claim 1, characterized in that, The slope angle of the wavy surface mating structure is between 30° and 50°.

6. The push-plate switch structure with a locking mechanism as described in claim 1, characterized in that, The wave-shaped surface mating structure includes an elastic wave-shaped protrusion (10) on the push plate (2) and a positioning piece (12) on the inner wall of the outer shell (1). The positioning piece (12) has a wave-shaped surface (17), and the wave-shaped protrusion (10) and the wave-shaped surface (17) are mated.

7. The push-plate switch structure with a locking mechanism as described in claim 1, characterized in that, The push plate (2) has a slider (19), and the inner wall of the outer shell (1) has a guide groove (20) that cooperates with the slider (19).

8. The push-plate switch structure with a locking mechanism as described in claim 1, characterized in that, The outer casing (1) is provided with a sliding groove (23) for the push plate (2) to slide, and the sliding groove (23) is used to provide the area required for the sliding path.

9. A line projector, characterized in that, Includes a push-plate switch structure with a locking mechanism as described in any one of claims 1 to 6.

10. A line projector as described in claim 9, characterized in that, A bracket (3) is installed inside the outer shell (1). The cross shaft (7) is hinged to the bracket (3) through a set of shaft heads. The cross shaft (7) is hinged to the pendulum body (4) through another set of shaft heads. A horizontal laser tube (5) and a vertical laser tube (6) are installed on the pendulum body (4). A push block (8) is installed on the push plate (2). The top of the push block (8) has a wave-shaped protrusion (10). The side of the push block (8) has a holding arm (9) for holding or releasing the pendulum body (4).

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