Installation and positioning mechanism for special-shaped handle of toggle switch

Abstract

The present invention discloses an installation and positioning mechanism for a special-shaped handle of a button switch, which is composed of a special-shaped cap, a lifting sleeve, a connecting screw, a long lever, a positioning pin shaft, a reset spring and other components. The special-shaped cap has a cap cover part and a cap barrel part. The lifting sleeve has an upper sleeve section and a lower sleeve section below the upper sleeve section. The upper sleeve section is matched with the axial hole of the cap barrel blind hole. The upper sleeve section and the cap barrel blind hole both have a D-shaped cross section. The advantages of the present invention: the special-shaped cap is reliably positioned by using the upper sleeve section to match the axial hole of the cap barrel blind hole and fix them with connecting screws.

Description

Technical Field

[0001] The invention relates to the field of toggle switches, in particular to an installation and positioning mechanism for a special-shaped handle of a toggle switch. Background Art

[0002] Among aircraft control devices, toggle switches are the most widely used. With the development of aircraft avionics systems and the increasing requirements for safety and comfort of control devices, the shapes of toggle switch handle caps in the same area are coded and special-shaped handle caps are used to improve the speed and accuracy of pilot operations.

[0003] At present, the handle cap of the existing toggle switch is installed by thread connection, and the starting position of the thread is different. The installation of the special-shaped handle cap using this installation method will cause inaccurate positioning. Therefore, it is urgent to improve the installation and positioning mechanism of the existing toggle switch special-shaped handle. Summary of the invention

[0004] The purpose of the present invention is to solve the problem of inaccurate installation and positioning of special-shaped handle caps due to threaded connection in the prior art, and to provide a novel installation and positioning mechanism for special-shaped handles of toggle switches.

[0005] In order to achieve this purpose, the technical solution of the present invention is as follows: a mounting and positioning mechanism for a special-shaped handle of a toggle switch, comprising:

[0006] The special-shaped cap comprises a cap cover portion and a cap barrel portion below the cap cover portion, a cap barrel blind hole is formed on the bottom surface of the cap barrel portion, a cap barrel connecting through hole extending in the radial direction is formed on the cap barrel portion, and the cap barrel connecting through hole is connected to the cap barrel blind hole;

[0007] A lifting sleeve, which comprises an upper sleeve section inside the blind hole of the cap barrel and a lower sleeve section below the upper sleeve section, wherein the upper sleeve section is matched with the axial hole of the cap barrel blind hole, wherein both the upper sleeve section and the cap barrel blind hole have a D-shaped cross section, a sleeve connecting through hole extending in the radial direction is formed on the upper sleeve section, and the sleeve connecting through hole is coaxial with the cap barrel connecting through hole, a guide groove extending in the up-down direction is formed on the inner circumference of the upper sleeve section, and an inner positioning boss is formed on the inner circumference of the lower sleeve section;

[0008] A connecting screw is inserted into the cap barrel connecting through hole and the shaft sleeve connecting through hole, and the connecting screw is used to fix the cap barrel part and the shaft sleeve upper section;

[0009] An elongated lever, which is disposed inside the lifting sleeve and extends in the up-down direction, and an upper end of the elongated lever is formed with a lever through hole extending in the radial direction;

[0010] a positioning pin, which is inserted into the guide groove and the through hole of the lever; and

[0011] A return compression spring surrounds the lifting sleeve and the elongated shifting rod, and the return compression spring extends in the up-down direction and is placed between the positioning pin and the inner positioning boss.

[0012] As a preferred solution for the installation and positioning mechanism of a special-shaped handle of a toggle switch, an outer positioning boss below the upper sleeve section is formed on the outer circumferential surface of the lower sleeve section, and the top surface of the outer positioning boss abuts against the bottom surface of the cap tube portion.

[0013] Compared with the prior art, the beneficial effect of the present invention is at least that: the upper section of the shaft sleeve is matched with the shaft hole of the blind hole of the cap barrel and fixed with connecting screws to achieve reliable positioning of the special-shaped cap. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the present invention (exploded structure).

[0015] Figure 2 It is a longitudinal cross-sectional view (first viewing angle) of the present invention.

[0016] Figure 3 It is a longitudinal cross-sectional view of the present invention (second viewing angle). DETAILED DESCRIPTION

[0017] The present invention is further described in detail below by means of specific embodiments connected with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0018] See also Figures 1 to 3 , the figure shows an installation and positioning mechanism for a special-shaped handle of a button switch.

[0019] The installation and positioning mechanism is mainly composed of a special-shaped cap 1, a lifting sleeve 2, a connecting screw 3, a long lever 4, a positioning pin 5 and a reset compression spring 6.

[0020] The special-shaped cap 1 comprises a cap portion 11 and a cap barrel portion 12 below the cap portion 11. A cap barrel blind hole 121 is formed on the bottom surface of the cap barrel portion 12. A cap barrel connecting through hole 122 extending radially is formed on the cap barrel portion 12 and the cap barrel connecting through hole 122 is connected to the cap barrel blind hole 121.

[0021] The lifting sleeve 2 has an upper sleeve section 21 inside the cap barrel blind hole 121 and a lower sleeve section 22 below the upper sleeve section 21. The upper sleeve section 21 is axially matched with the cap barrel blind hole 121. The upper sleeve section 21 and the cap barrel blind hole 121 are both D-shaped cross-sections to ensure that there is no relative rotation between the two. A sleeve connecting through hole 211 extending in the radial direction is formed on the upper sleeve section 21, and the sleeve connecting through hole 211 is coaxial with the cap barrel connecting through hole 122. A guide groove 212 extending in the up-and-down direction is formed on the inner circumferential surface of the upper sleeve section 21. An inner positioning boss 222 is formed on the inner circumferential surface of the lower sleeve section 22.

[0022] The connecting screw 3 is inserted into the cap barrel connecting through hole 122 and the shaft sleeve connecting through hole 211. The connecting screw 3 is used to fix the cap barrel portion 12 and the shaft sleeve upper section 21.

[0023] The long lever 4 is disposed inside the lifting sleeve 2 and extends in the up-down direction. The upper end of the long lever 4 is formed with a lever through hole extending in the radial direction.

[0024] The positioning pin 5 is inserted into the guide groove 212 and the through hole of the lever. The positioning pin 5 is used to guide the elongated lever 4 to move up and down.

[0025] The return compression spring 6 surrounds the lifting sleeve 2 and the elongated lever 4. The return compression spring 6 extends in the up-down direction and is placed between the positioning pin 5 and the inner positioning boss 222. The upper end of the return compression spring 6 abuts against the positioning pin 5. The lower end of the return compression spring 6 abuts against the inner positioning boss 222.

[0026] An outer locating boss 221 below the upper sleeve section 21 is formed on the outer circumferential surface of the lower sleeve section 22. The top surface of the outer locating boss 221 abuts against the bottom surface of the cap tube portion 12.

[0027] Working process: the lifting sleeve 2 is displaced up and down by the elastic force of the return compression spring 6. When the lifting sleeve 2 is pulled, the positioning pin 5 moves in conjunction with the long lever 4.

[0028] The upper sleeve section 21 is matched with the axial hole of the cap barrel blind hole 121 and fixed with the connecting screw 3 to achieve reliable positioning of the special-shaped cap 1.

[0029] The above only expresses the implementation mode of the present invention, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A mounting and positioning mechanism for a special-shaped handle of a toggle switch, characterized in that: Contains: The special-shaped cap comprises a cap cover portion and a cap barrel portion below the cap cover portion, a cap barrel blind hole is formed on the bottom surface of the cap barrel portion, a cap barrel connecting through hole extending in the radial direction is formed on the cap barrel portion, and the cap barrel connecting through hole is connected to the cap barrel blind hole; A lifting sleeve, which comprises an upper sleeve section inside the blind hole of the cap barrel and a lower sleeve section below the upper sleeve section, wherein the upper sleeve section is matched with the axial hole of the cap barrel blind hole, wherein both the upper sleeve section and the cap barrel blind hole have a D-shaped cross section, a sleeve connecting through hole extending in the radial direction is formed on the upper sleeve section, and the sleeve connecting through hole is coaxial with the cap barrel connecting through hole, a guide groove extending in the up-down direction is formed on the inner circumference of the upper sleeve section, and an inner positioning boss is formed on the inner circumference of the lower sleeve section; A connecting screw is inserted into the cap barrel connecting through hole and the shaft sleeve connecting through hole, and the connecting screw is used to fix the cap barrel part and the shaft sleeve upper section; An elongated lever, which is disposed inside the lifting sleeve and extends in the up-down direction, and an upper end of the elongated lever is formed with a lever through hole extending in the radial direction; a positioning pin, which is inserted into the guide groove and the through hole of the lever; and A return spring is wound around the lifting sleeve and the elongated lever, and the return spring extends in the up-down direction and is placed between the positioning pin and the inner positioning shoulder. An outer positioning boss below the upper section of the sleeve is formed on the outer circumferential surface of the lower section of the sleeve, and the top surface of the outer positioning boss abuts against the bottom surface of the cap tube portion.

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