Button limiting structure for microswitch

Abstract

The utility model discloses a button limiting structure for a microswitch, which relates to the technical field of microswitches, and is characterized in that a shell and a shell cover play a role in protecting internal parts, the microswitch can be conveniently mounted and maintained, and meanwhile, an operation button can be supported and protected; the micro-motion elastic pieces are movably fixed to the two sides of the shell cover through the two sets of hinge pieces, the micro-motion elastic pieces press the micro-motion button when used, the micro-motion button drives the spring limiting piece and the pressing rod to move downwards, the pressing rod presses the movable piece, and the movable piece is moved downwards through the movable piece hinge pieces. The movable piece is connected with the normally-open terminal connecting piece in a disconnected mode, the movable piece is connected with the normally-closed terminal connecting piece, the normally-open terminal connecting piece is connected with the normally-open terminal, the normally-closed terminal connecting piece is connected with the normally-closed terminal, the pressing limiting block is used for vertically limiting the micro-motion button, and the spring limiting piece is used for movably limiting the spring.

Description

Technical Field

[0001] The utility model relates to the technical field of micro switches, in particular to a button limiting structure for micro switches. Background Art

[0002] Micro switches can be used to control the on and off of circuits. The circuits are opened and closed by pressing and releasing buttons. They can control the transmission and switching of signals in various electronic equipment, electrical equipment and automation systems. At the same time, micro switches can also be used for safety protection and emergency stop functions. In some mechanical equipment or industrial automation systems, when a fault, danger or emergency occurs, the micro switch can quickly cut off the power supply or trigger the alarm device by pressing the button to protect the safety of personnel and equipment. Micro switches play an important role in automation control systems. They can be used in conjunction with other sensors, actuators, controllers and other equipment to achieve automated control and operation. Through the triggering and position change of the button, the micro switch can feedback information to the control system, thereby realizing the monitoring, regulation and control of the automation process. Micro switches play an important role in circuit control, signal detection, safety protection and automation control. They are widely used in various fields, including electronic equipment, electrical equipment, mechanical equipment, industrial automation and household appliances. However, the micro switch button has no limit structure. The micro switch button is pressed back and forth for a long time, which causes fatigue of the micro switch shrapnel. After repeated use, the micro switch shrapnel is damaged, affecting the accuracy and service life of the micro switch. Therefore, those skilled in the art provide a button limiting structure for a micro switch to solve the problems raised in the above background technology. Utility Model Content

[0003] The purpose of the utility model is to provide a button limiting structure for a micro switch to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A button limiting structure for a micro switch comprises a shell, wherein a shell cover is arranged at the upper end of the shell, hinges are arranged on both the front and rear sides of the upper left end of the shell cover, micro-motion springs are arranged on the outer sides of the two sets of hinges, a button fixing device is arranged at the upper end of the shell cover near the left side, a micro-motion button is arranged on the inner side of the button fixing device, a common terminal is arranged at the lower end of the shell near the left side, a normally closed terminal is arranged at the lower end of the shell near the middle side, and a normally open terminal is arranged at the lower end of the shell near the right side.

[0006] Preferably, a spring limit plate is provided at the lower end of the micro button, a pressing rod is provided at the lower end of the spring limit plate, a movable plate is provided at the lower end of the pressing rod, a movable plate hinge is provided between the movable plate and the common terminal, a fixed base is provided near the middle on the inner side of the shell, and springs are provided on the outer side of the pressing rod and the upper end of the fixed base.

[0007] Preferably, a press limit block is provided at the upper end of the fixed base at a position corresponding to the spring limit plate, a normally open terminal connecting piece is provided at the lower end of the fixed base near the middle at a position corresponding to the movable piece, a normally closed terminal connecting piece is provided at the upper end of the normally closed terminal at a position corresponding to the movable piece, and a movable piece limit block is provided at the inner bottom of the shell at a position corresponding to the movable piece.

[0008] Compared with the prior art, the beneficial effects of the utility model are as follows: the shell and the shell cover play a role in protecting the internal components, and can also facilitate the installation and maintenance of the micro switch, and can also provide support and protection for the operating button. The micro spring is movably fixed on both sides of the shell cover by two sets of hinges. When in use, the micro spring is pressed, and the micro spring presses the micro button. The micro button drives the spring limit plate and the pressing rod to move downward, and the pressing rod presses the movable plate. The movable plate is moved downward through the movable plate hinge, and the movable plate is disconnected from the normally open terminal connecting plate, and the movable plate is connected to the normally closed terminal connecting plate. The normally open terminal connecting plate is connected to the normally open terminal, and the normally closed terminal connecting plate is connected to the normally closed terminal. The pressing limit block presses the micro button Perform upper and lower limits, the spring limit piece performs active limit on the spring, and the spring limit piece is used to limit the spring and the movable block, so as to achieve precise control of the movable parts inside the micro switch to ensure that they move within the specified range, thereby ensuring the stability and reliability of the micro switch. The movable piece limit block performs upper and lower limits on the movable block. The limit can reduce unnecessary vibration and movement of internal components, thereby reducing wear and damage to parts and extending the service life of the micro switch. Release the micro spring, the spring restores its elasticity, drives the spring limit piece to move upward, and the micro button is restored. The limit piece drives the pressing rod to move upward, and the pressing rod drives the movable piece to disconnect from the normally closed terminal connecting piece, and the movable piece is connected to the normally open terminal connecting piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 The present invention is a structural schematic diagram of a button limit structure for a micro switch.

[0010] Figure 2 The present invention is a schematic front view of a button limit structure for a micro switch.

[0011] Figure 3 The present invention is a structural cross-sectional schematic diagram of a button limit structure for a micro switch.

[0012] Figure 4A button limit structure for a micro switch Figure 3 A is a magnified schematic diagram of the structure.

[0013] In the figure: 1, shell, 2, shell cover, 3, hinge, 4, micro spring, 5, micro button, 6, button fixing device, 7, common terminal, 8, normally closed terminal, 9, normally open terminal, 10, spring limit plate, 11, pressing rod, 12, spring, 13, pressing limit block, 14, fixed base, 15, movable plate, 16, movable plate hinge, 17, normally open terminal connecting plate, 18, normally closed terminal connecting plate, 19, movable plate limit block. DETAILED DESCRIPTION

[0014] In order to make the technical means, creative features, purpose and efficacy of the utility model easy to understand, the utility model is further described below in conjunction with the specific implementation methods. In the description of the utility model, it should be noted that the orientation or position relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model 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, and therefore cannot be understood as a limitation of the utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense, for example, "connected" 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 directly connected, or indirectly connected through an intermediate medium, or it can be a connection between the two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0015] See also Figures 1 to 4In the embodiment of the utility model, a button limiting structure for a micro switch includes a shell 1, a shell cover 2 is arranged at the upper end of the shell 1, hinges 3 are arranged on both sides of the upper left end of the shell cover 2, micro springs 4 are arranged on the outer sides of the two sets of hinges 3, a button fixing device 6 is arranged near the left side of the upper end of the shell cover 2, a micro button 5 is arranged on the inner side of the button fixing device 6, a common terminal 7 is arranged near the left side of the lower end of the shell 1, a normally closed terminal 8 is arranged near the middle side of the lower end of the shell 1, a normally open terminal 9 is arranged near the right side of the lower end of the shell 1, a spring limiting piece 10 is arranged at the lower end of the micro button 5, a pressing rod 11 is arranged at the lower end of the spring limiting piece 10, and a pressing rod 11 is arranged at the lower end of the spring limiting piece 10. A movable sheet 15 is provided at the lower end of the pressure rod 11, and a movable sheet hinge 16 is provided between the movable sheet 15 and the common terminal 7. A fixed base 14 is provided near the middle of the inner side of the shell 1, and a spring 12 is provided on the outer side of the pressing rod 11 and at the upper end of the fixed base 14. A pressing limit block 13 is provided at the upper end of the fixed base 14 corresponding to the spring limit sheet 10, a normally open terminal connecting piece 17 is provided at the lower end of the fixed base 14 near the middle and corresponding to the movable sheet 15, a normally closed terminal connecting piece 18 is provided at the upper end of the normally closed terminal 8 and corresponding to the movable sheet 15, and a movable sheet limit block 19 is provided at the inner bottom of the shell 1 at a position corresponding to the movable sheet 15.

[0016] The working principle of the utility model is that the shell and the shell cover play a role in protecting the internal components, and can also facilitate the installation and maintenance of the micro switch, and can also provide support and protection for the operation button. The micro spring is movably fixed on both sides of the shell cover through two groups of hinges. When in use, the micro spring is pressed, and the micro spring presses the micro button. The micro button drives the spring limit piece and the pressing rod to move downward, and the pressing rod presses the movable piece. The movable piece is moved downward through the movable piece hinge, and the movable piece is disconnected from the normally open terminal connecting piece, and the movable piece is connected to the normally closed terminal connecting piece. The normally open terminal connecting piece is connected to the normally open terminal, and the normally closed terminal connecting piece is connected to the normally closed terminal. The pressing limit block moves the micro button up and down. Limitation, the spring limit piece limits the spring's activity. By limiting the spring and the movable block through the spring limit piece, precise control of the movable parts inside the micro switch can be achieved to ensure that they move within the specified range, thereby ensuring the stability and reliability of the micro switch. The movable piece limit block limits the movable block up and down. Limitation can reduce unnecessary vibration and movement of internal components, thereby reducing wear and damage to parts and components and extending the service life of the micro switch. Release the micro spring, the spring restores its elasticity, drives the spring limit piece to move upward, and the micro button is restored. The limit piece drives the pressing rod to move upward, and the pressing rod drives the movable piece to disconnect from the normally closed terminal connecting piece, and the movable piece is connected to the normally open terminal connecting piece.

[0017] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0018] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A button limit structure for a micro switch, comprising a housing (1), characterized in that: A shell cover (2) is arranged at the upper end of the shell (1), hinges (3) are arranged on both the front and rear sides of the upper left end of the shell cover (2), micro-movement springs (4) are arranged on the outer sides of the two sets of hinges (3), and a button fixing device (6) is arranged near the left side of the upper end of the shell cover (2).

2. A button limiting structure for a micro switch according to claim 1, characterized in that: A micro-switch button (5) is arranged on the inner side of the button fixing device (6), a common terminal (7) is arranged on the lower end of the shell (1) near the left side, and a normally closed terminal (8) is arranged on the lower end of the shell (1) near the middle side.

3. The button limiting structure for a micro switch according to claim 1, characterized in that: A normally open terminal (9) is arranged at the lower end of the housing (1) near the right side, a spring stopper (10) is arranged at the lower end of the micro-motion button (5), and a pressing rod (11) is arranged at the lower end of the spring stopper (10).

4. The button limiting structure for a micro switch according to claim 3, characterized in that: A movable sheet (15) is arranged at the lower end of the pressing rod (11), a movable sheet hinge (16) is arranged between the movable sheet (15) and the common terminal (7), and a fixed base (14) is arranged near the middle of the inner side of the housing (1).

5. The button limiting structure for a micro switch according to claim 4, characterized in that: A spring (12) is provided on the outer side of the pressing rod (11) and the upper end of the fixed base (14), and a pressing limit block (13) is provided at a position on the upper end of the fixed base (14) corresponding to the spring limit piece (10).

6. The button limiting structure for a micro switch according to claim 5, characterized in that: A normally open terminal connecting piece (17) is arranged at a position near the middle of the lower end of the fixed base (14) corresponding to the movable piece (15).

7. The button limiting structure for a micro switch according to claim 2, characterized in that: A normally closed terminal connecting piece (18) is provided at a position on the upper end of the normally closed terminal (8) corresponding to the movable piece (15), and a movable piece limiting block (19) is provided at a position on the inner bottom of the housing (1) corresponding to the movable piece (15).

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