Portable capstan handle push button switch

Abstract

A portable winch handle button switch, including button assembly, load component, shell component, the load component includes stud, movable contact, static contact, push block, stud includes long stud, first, second, third short stud, static contact includes upper contact, lower contact, curved contact bridge, the long stud is connected with the upper contact through the upper locking screw, the third short stud is connected with the lower contact through the lower locking screw, the first short stud, second short stud are connected with the curved contact bridge through the middle locking screw. The stud and the static contact are connected by fasteners, which is convenient for assembly and disassembly, simple and fast, high working efficiency, reduces the production cost, and is convenient for disassembly of defective products. The button panel of the button assembly is embedded with the label panel, the connection between the label panel, the button seat and the button top block is reliable, the button seat is firmly fixed and reliable, the button assembly is dustproof and waterproof, and the sealing performance is good.

Description

Technical Field

[0001] This invention relates to a handle push-button switch for controlling the switching or on / off of current, specifically to a winch handle push-button switch. Background Technology

[0002] A push-button switch is an electrical product used to control the supply of power to a line and to reverse or interrupt the current. It is generally manually controlled to achieve current switching and reversal. It is widely used in energy conservation and environmental protection, electric vehicles, industrial vehicles, and industrial power systems. It is primarily suitable for manual control of forward and reverse rotation of electric winches in off-road vehicles, electric forklifts, electric vehicles, environmental protection vehicles, electric cars, electric bicycles, excavators, car tailgates, and car lifting systems. The winch handle push-button switch is mainly used for manually controlling the rotation of the winch motor. It generally consists of a button assembly, a cover plate, a load component, and a housing component. The housing component includes an upper outer shell, a base, and a lower outer shell. The load component includes multiple studs, moving contacts and a return spring, a stationary contact, a push block, and a pressure spring. This winch handle push-button switch has multiple studs that are connected to the motor and power supply respectively. When the button is released, it cuts off the power to the motor and stops it immediately. The multiple studs and stationary contacts (including the upper contact, lower contact, and bent contact bridge) are all riveted together. While the connection is strong, it is difficult to disassemble, resulting in low production efficiency, high processing costs, and significant disadvantages for the removal and return of defective products from the production line. Furthermore, the button assembly (including the connected button top block and button panel) is designed for one-button operation; releasing it disconnects the button. Over time, the button panel wears down, blurring the markings. The button top block connection is sometimes not securely fixed, exhibiting instability, and its dustproof and waterproof sealing performance is also poor. Summary of the Invention

[0003] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a convenient winch handle button switch that allows for easy and quick removal of the stud and stationary contact.

[0004] The objective of this invention is achieved through the following technical solution: a portable winch handle button switch, comprising a button assembly, a cover plate, a load component, and a housing component. The housing component includes an upper outer shell, a base, and a lower outer shell. The load component includes studs, a moving contact, a stationary contact, and a push block. The studs include a long stud, a first short stud, a second short stud, and a third short stud. The stationary contact includes an upper contact, a lower contact, and a bent contact bridge. The long stud is connected to the upper contact by an upper locking screw, and the third short stud is connected to the lower contact by a lower locking screw. The first and second short studs are both connected to the bent contact bridge by a middle locking screw.

[0005] The button assembly includes a button base, a button top block, and a button panel. A label panel is embedded within the button panel. The lower end of the button top block is movably engaged within the button base, its upper end is connected to the label panel via a button screw, and its middle portion is connected to the side of the button base. A button spring is mounted around the button top block; the upper end of the button spring is engaged with the upper part of the button top block, and its lower end is engaged with the button base. The button base has an "H" shaped structure.

[0006] The outer surface of the button base has external threads to engage with the button buckle, which in turn engages with the upper housing to enhance the button base's stability and positioning. A button sleeve is fitted onto the button base, above the button buckle, between it and the button top block and label panel, providing an effective dustproof and waterproof seal.

[0007] With this invention, the long stud, multiple short studs, and stationary contact pieces (including the upper contact piece, lower contact piece, and bent contact bridge) are all connected by fasteners (corresponding to the upper, lower, and middle locking screws, respectively), facilitating assembly and disassembly, simplifying and speeding up the process, increasing work efficiency, reducing production costs, and simplifying the disassembly and return of defective products. The button panel has an embedded label panel; wear on the button panel does not affect the markings on the label panel. The connection between the label panel, button base, and button top block is reliable. The button buckle assembly ensures a secure and reliable positioning of the button base, and the button sleeve assembly provides excellent dust and water resistance and sealing performance for the entire button assembly. This improves the quality of the winch handle button switch. Attached Figure Description

[0008] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0009] Figure 1 This is a schematic diagram of the structure of the convenient winch handle button switch of the present invention.

[0010] Figure 2 for Figure 1 Rear view (with the lower shell removed).

[0011] Figure 3 for Figure 1 EE sectional view.

[0012] Figure 4 for Figure 2 PP sectional view.

[0013] Figure 5 for Figure 2 NN cross-sectional view.

[0014] Figure 6 This is a schematic diagram of the external circuit connection of the present invention. Detailed Implementation

[0015] Reference Figures 1 to 5As can be seen, the convenient winch handle button switch of the present invention includes a button assembly (including one assembly on the left and one on the right), a cover plate 4 (and a plastic guide plate 5), a load component, and a housing component. The housing component includes an upper outer shell 2, a base 8, and a lower outer shell 24. The load component includes studs, a moving contact 7 (and a return spring 23), a stationary contact, a push block 1 (and a pressure spring 3). The studs include a long stud (C) 14, a first short stud (A) 17, a second short stud (B) 15, and a third short stud (D) 18. The stationary contact includes an upper contact 21, a lower contact 22, and a bent contact bridge 6. The long stud (C) 14 is connected to the upper contact 21 by an upper locking screw 26. The third short stud (D) 18 is connected to the lower contact 22 by a lower locking screw 27. The first short stud (A) 17 and the second short stud (B) 15 are both connected to the bent contact bridge 6 by a middle locking screw 25 (one on the left and one on the right). The lower part of the push block 1 is connected to the moving contact 7 via a pressure spring 3, and the lower part of the moving contact 7 is connected to the base 8 via a return spring 23. Figure 3 , Figure 6 As shown, when the present invention is connected to the external circuit, the long stud (C) 14 is connected to the negative terminal of the power supply, the third short stud (D) 18 is connected to the positive terminal of the power supply, and the first short stud (A) 17 and the second short stud (B) 15 are respectively connected to the two ends of the motor.

[0016] The button assembly includes a button base 16 (whose upper end is connected to the upper housing), a button top block 20, and a button panel 9 (an outer layer for pressing, made of transparent material). A label panel 10 (an inner layer with an operation label or brand logo) is embedded within the button panel 9. The lower end (with a curved portion) of the button top block 20 is movably engaged within the button base 16, its upper end is connected to the label panel 10 via a button screw 11, and its middle portion is connected to the side of the button base 16. A button spring 13 is mounted around the button top block 20; its upper end is engaged with the upper part of the button top block 20, and its lower end is engaged with the button base 16. The lower part of the button top block 20 is connected to a push block 1, used to push the push block up and down. The button base 16 has an "H" shaped structure.

[0017] The outer surface of the button base 16 has external threads and engages with the button buckle 19 (which has internal threads). The button buckle 19 engages with the upper housing 2 to enhance the firmness and positioning of the button base. A button sleeve 12 is fitted on the button base 16, above the button buckle 19, between the button top block 20 and the label panel 10 (its upper end is secured between the button top block and the label panel, and its lower end is secured on the button base and above the button buckle), providing an effective dustproof and waterproof seal.

[0018] Referring to the accompanying drawings, the principle of controlling the forward and reverse rotation of the motor by pressing or releasing the button panel 9 (and label panel 10) is as follows: When the long stud 14 (C) and the third short stud 18 (D) are connected to the power supply (DC regulated), the first short stud 17 (A) and the second short stud 15 (B) are connected to the motor. When a finger presses the left button panel 9 (and label panel 10), as shown in the attached drawings, the motor is switched on. Figure 6 When the first switch K1 is turned on, the push block 1 on the left is pushed down by the button top block 20, which causes the left movable contact 7 to descend and connect with the lower contact 22. At this time, the right movable contact 7 is in the upper position and connected with the upper contact 21. At this time, the two bent contact bridges, the two movable contacts, the upper contact, the lower contact, the power supply, and the motor form a current circuit, driving the motor to rotate forward. When the finger is released from the left button panel 9, the left push block 1 returns to the upper position under the spring force of the left pressure spring 3 and the return spring 23. At the same time, it drives the left movable contact 7, the left button top block 20, and the button panel (and label panel) back to the initial position (at this time, the button top block 20, the button panel 9, the label panel 10, and the button sleeve 12 are also subjected to the spring force of the button spring 13). At this time, the left movable contact is disconnected from the lower contact and connected to the upper contact, the current circuit is broken, and the motor stops rotating. Similarly, pressing the right button panel 9 (and label panel 10, as shown) Figure 6 (When the second switch K2 is turned on, a current loop is formed, driving the motor to rotate. However, the current direction is reversed, so the motor rotates in reverse. In practice, the positive and negative poles of the motor can be adjusted to allow the left button assembly to control the motor to rotate in reverse and the right button assembly to control the motor to rotate forward.)

[0019] The circuit is constructed by connecting four studs (including a long stud, a first short stud, a second short stud, and a third short stud) internally to four stationary contacts (including an upper contact, a lower contact, and two bent contact bridges) via fasteners (corresponding to the upper, lower, and middle locking screws, respectively). Externally, the four studs are connected to the power supply and the motor, respectively. Manual control of the left and right button assemblies, by pressing and releasing them, controls the forward and reverse rotation of the motor. When both button assemblies are released, the negative terminal of the power supply is connected to the long stud (C) 14. At this time, the long stud (C) 14 is connected to the first short stud (A) 17 and the second short stud (B) 15, respectively. The motor is also connected to the first short stud (A) 17 and the second short stud (B) 15. Therefore, when the motor is connected to this invention, its negative terminal is always on. This circuit also ensures that if two buttons are pressed simultaneously due to operational error, it will not cause a short circuit in the overall circuit, thus avoiding hardware damage caused by short circuits due to operational errors. Furthermore, the number of studs has been reduced, lowering production costs, and the wiring and connection methods are also simpler.

Claims

1. A portable winch handle push-button switch, comprising a push-button assembly, a cover plate, a load component, and a housing component, wherein the housing component includes an upper outer shell, a base, and a lower outer shell, and the load component includes a stud, a moving contact, a stationary contact, and a push block, characterized in that: The studs include a long stud, a first short stud, a second short stud, and a third short stud. The stationary contact includes an upper contact, a lower contact, and a bent contact bridge. The long stud is connected to the upper contact via an upper locking screw, and the third short stud is connected to the lower contact via a lower locking screw. The first and second short studs are both connected to the bent contact bridge via middle locking screws.

2. The portable winch handle button switch as described in claim 1, characterized in that: The button assembly includes a button base, a button top block, and a button panel. The button panel has a label panel embedded in it. The lower end of the button top block is movably engaged in the button base, its upper end is connected to the label panel by a button screw, and its middle part is connected to the side of the button base. A button spring is installed around the button top block. The upper end of the button spring is engaged in the upper part of the button top block, and its lower end is engaged in the button base.

3. The portable winch handle button switch as described in claim 2, characterized in that: The button base has an "H" shaped structure.

4. The portable winch handle button switch as described in claim 2 or 3, characterized in that: The outer surface of the button holder has external threads that connect with the button buckle, which in turn connects with the upper housing.

5. The portable winch handle button switch as described in claim 2 or 3, characterized in that: A button sleeve is fitted on the button base, above the button buckle, between the button top block and the label panel.

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