Special-shaped handle and switching device connecting device, connecting structure and method

Abstract

The invention discloses a connecting device, a connecting structure and a connecting method for a special-shaped handle and a switching device. The connecting device comprises a handle end connecting shaft, a device end connecting shaft and a connecting shaft locking sleeve. The handle end connecting shaft is provided with a handle end head section, a handle end tail section and a handle end middle section, and the handle end head section is used for being fixedly connected with the special-shaped handle. The device end connecting shaft is provided with a device end head section and a device end tail section, and the device end tail section is used for being fixedly connected with a device rotating shaft of the switching device. The special-shaped handle has the beneficial effects that the special-shaped handle which is safe, reliable, convenient and low in cost is fixedly connected with a switching device according to a specific mounting direction.

Description

Technical Field

[0001] The invention relates to a switch device, in particular to a connection device, a connection structure and a method for connecting a special-shaped handle to a switch device. Background Art

[0002] In aircraft, special vehicles and other scenarios, switch devices often use special-shaped handles because the irregular shape of the special-shaped handles facilitates blind operation by operators and reduces the possibility of misoperation. While special-shaped handles improve operating efficiency, they also introduce installation problems. When special-shaped handles are installed on switch devices, there are specific requirements for the installation angle. The device shaft of the switch device is mainly connected by threads, and it cannot be guaranteed that the special-shaped handle is installed at a specific angle when the threads are locked. Summary of the invention

[0003] The purpose of the present invention is to solve the problem in the prior art that a special-shaped handle cannot be installed at a specific angle when the thread is locked, and to provide a novel connection device, connection structure and method for a special-shaped handle and a switch device.

[0004] In order to achieve this purpose, the technical solution of the present invention is as follows: a special-shaped handle and switch device connecting device, used for fixedly connecting the special-shaped handle and the device rotating shaft of the switch device, the connecting device comprises: a handle end connecting shaft, a device end connecting shaft and a connecting shaft locking sleeve; the handle end connecting shaft comprises a handle end first section, a handle end last section and a handle end middle section between the handle end first section and the handle end last section, the handle end first section is used for fixed connection with the special-shaped handle; the device end connecting shaft comprises a device end first section and a device end last section, the device end last section is used for fixed connection with the device rotating shaft of the switch device; the device end connecting shaft and the handle end connecting shaft have a common axis, and the device end first section of the device end connecting shaft is relatively At the handle end section of the handle end connecting shaft, the connecting shaft locking sleeve comprises a locking sleeve first section surrounding the outer periphery of the handle end middle section, a locking sleeve middle section surrounding the outer periphery of the handle end end section and a locking sleeve last section surrounding the outer periphery of the device end first section, the end face of the locking sleeve first section abuts against the end face of the handle end first section, the end face of the device end first section comprises a device end tooth portion, the end face of the handle end end section comprises a handle end tooth portion corresponding to the device end tooth portion, the device end tooth portion meshes with the handle end tooth portion, and the relative angle between the handle end connecting shaft and the device end connecting shaft is the specified installation angle of the special-shaped handle and the device rotating shaft of the switch device, and the device end first section and the locking sleeve last section are threadedly connected.

[0005] As a preferred solution of the connection device between the special-shaped handle and the switch device, the fixed connection between the first section of the handle end and the special-shaped handle is a threaded connection, an interference fit between the shaft and the hole, welding or riveting.

[0006] As a preferred solution of the connection device between the special-shaped handle and the switch device, the fixed connection between the device end section and the device shaft of the switch device is a threaded connection, an interference fit between the shaft and the hole, welding or riveting.

[0007] As a preferred solution for the device for connecting a special-shaped handle to a switch device, the handle end tooth portion and the device end tooth portion are omitted, and the end surface of the first section of the device end and the end surface of the last section of the handle end are friction surfaces with a higher friction coefficient to limit the relative rotation of the device end connecting shaft and the handle end connecting shaft around the axis.

[0008] As a preferred solution for the device for connecting a special-shaped handle to a switch device, the end face of the first section of the device end has a device end blind hole opening toward the handle end connecting shaft, the end face of the last section of the handle end has a handle end blind hole opening toward the device end connecting shaft, the device end blind hole and the handle end blind hole together form a accommodating space, an elastic element is provided inside the accommodating space, and the elastic element acts on the first section of the device end and the last section of the handle end respectively.

[0009] As a preferred solution for the device for connecting a special-shaped handle to a switch device, the middle section of the handle end has a middle section shoulder located outside the locking sleeve body, wherein the inner diameter of the first section of the locking sleeve is larger than the outer diameter of the middle section shoulder, the outer diameter of the middle section shoulder is larger than the outer diameter of the middle section of the handle end, and the radial cross-section of the middle section shoulder is a polygonal structure.

[0010] As a preferred solution of the device for connecting the special-shaped handle to the switch device, the radial cross-section of the end section of the device is a polygonal structure.

[0011] The present invention also provides a connection structure of a special-shaped handle and a switch device, comprising: a special-shaped handle, a switch device and the connecting device, wherein the special-shaped handle is fixedly connected to the first section of the handle end of the handle end connecting shaft, and the switch device and the device rotating shaft are fixedly connected to the last section of the device end of the device end connecting shaft.

[0012] The present invention further provides a method for connecting a special-shaped handle to a switch device, comprising: Providing a special-shaped handle, a switch device and the connecting device; Before the connecting shaft locking sleeve is locked, the relative angle between the connecting shaft at the handle end and the connecting shaft at the device end is first adjusted to the specified installation angle between the special-shaped handle and the device rotating shaft of the switch device, and then the end face of the end section of the handle end is abutted against the end face of the first section of the device end, and the toothed portion of the handle end is meshed with the toothed portion of the device end to limit the change of the relative angle; The handle end connecting shaft and the device end connecting shaft are locked by the connecting shaft locking sleeve; and, The special-shaped handle is fixedly connected to the handle end first section of the handle end connecting shaft, and the switch device and the device rotating shaft are fixedly connected to the device end last section of the device end connecting shaft.

[0013] Compared with the prior art, the present invention has at least the following beneficial effects: achieving a safe, reliable, convenient and low-cost fixed connection between the special-shaped handle and the switch device in a specific installation direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural stereogram of the connecting device of the present invention (exploded state).

[0015] Figure 2 It is a structural front view of the connecting device of the present invention (exploded state).

[0016] Figure 3 yes Figure 2 Schematic diagram of the structure in the AA section.

[0017] Figure 4 It is a structural front view (assembled state) of the connecting device of the present invention.

[0018] Figure 5 yes Figure 4 Schematic diagram of the cross section along the BB direction.

[0019] Figure 6 yes Figure 4 Schematic diagram of the CC section.

[0020] Figure 7 It is a structural schematic diagram of the connection structure between the special-shaped handle and the switch device of the present invention.

[0021] Figure 8 yes Figure 7 Schematic diagram of the DD section. Implementation

[0022] The present invention is further described in detail below by means of specific embodiments in combination 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 each embodiment of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0023] See also Figures 1 to 8 , the figure shows a connecting device 300 of a special-shaped handle 100 and a switch device 200. The connecting device 300 is used to fix the device shaft connecting the special-shaped handle 100 and the switch device 200.

[0024] The connecting device 300 comprises: a handle end connecting shaft 1, a device end connecting shaft 2 and a connecting shaft locking sleeve 3, etc.

[0025] The handle end connecting shaft 1 comprises a handle end first section 11, a handle end last section 13 and a handle end middle section 12 between the handle end first section 11 and the handle end last section 13. The handle end first section 11 is used for fixed connection with the special-shaped handle 100. In this embodiment, the fixed connection between the handle end first section 11 and the special-shaped handle 100 is a threaded connection. In other embodiments, the fixed connection between the handle end first section 11 and the special-shaped handle 100 is an interference fit between the shaft and the hole, welding or riveting, etc.

[0026] The device end connecting shaft 2 has a device end first section 21 and a device end last section 22. The device end last section 22 is used to be fixedly connected to the device rotating shaft of the switch device 200. In this embodiment, the fixed connection between the device end last section 22 and the device rotating shaft of the switch device 200 is a threaded connection. In other embodiments, the fixed connection between the device end last section 22 and the device rotating shaft of the switch device 200 is an interference fit between the shaft and the hole, welding or riveting, etc.

[0027] The device end connecting shaft 2 and the handle end connecting shaft 1 have a common axis. The device end first section 21 of the device end connecting shaft 2 is opposite to the handle end last section 13 of the handle end connecting shaft 1. In this embodiment, the end surface of the device end first section 21 has a device end tooth portion. The end surface of the handle end last section 13 has a handle end tooth portion corresponding to the device end tooth portion (such as Figure 6 ). The device end teeth are meshed with the handle end teeth, and the relative angle between the handle end connecting shaft 1 and the device end connecting shaft 2 is the specified installation angle of the special-shaped handle 100 and the device rotating shaft of the switch device 200. In other embodiments, the handle end teeth and the device end teeth are omitted, and the end surface of the device end first section 21 and the end surface of the handle end last section 13 are friction surfaces with a higher friction coefficient to limit the relative rotation of the device end connecting shaft 2 and the handle end connecting shaft 1 around the axis.

[0028] The connecting shaft locking sleeve 3 comprises a locking sleeve first section 31 surrounding the outer periphery of the handle end middle section 12, a locking sleeve middle section 32 surrounding the outer periphery of the handle end end section 13, and a locking sleeve end section 33 surrounding the outer periphery of the device end first section 21. The end surface of the locking sleeve first section 31 abuts against the end surface of the handle end first section 11. The locking sleeve middle section 32 is hole-axially matched with the handle end end section 13. The device end first section 21 and the locking sleeve end section 33 are threadedly connected.

[0029] Preferably, the end face of the device end first section 21 has a device end blind hole opening toward the handle end connecting shaft 1. The end face of the handle end terminal section 13 has a handle end blind hole opening toward the device end connecting shaft 2. The device end blind hole and the handle end blind hole together form a accommodating space. An elastic element 4 is arranged inside the accommodating space. The elastic element 4 acts on the device end first section 21 and the handle end terminal section 13 respectively. In this embodiment, the elastic element 4 is a compression spring. In other embodiments, the elastic element 4 is an elastic gasket, a rubber gasket or others. The purpose of configuring the elastic element 4 is to prevent the threads of the device end first section 21 and the locking sleeve terminal section 33 from loosening.

[0030] Preferably, the handle end middle section 12 has a middle section shaft shoulder 14 located outside the locking sleeve body. The inner diameter of the locking sleeve first section 31 is larger than the outer diameter of the middle section shaft shoulder 14, and the outer diameter of the middle section shaft shoulder 14 is larger than the outer diameter of the handle end middle section 12. The radial cross section of the middle section shaft shoulder 14 is a polygonal structure. The purpose of configuring the middle section shaft shoulder 14 is to facilitate the assembly personnel to use a universal wrench tool to pre-tighten the threads of the handle end first section 11 and the special-shaped handle 100.

[0031] Preferably, the radial cross-section of the device end section 22 is a polygonal structure, so that the assembler can use a universal wrench tool to pre-tighten the threads of the device end section 22 and the device shaft of the switch device 200 and the device end first section 21 and the locking sleeve end section 33.

[0032] See also Figure 7 and Figure 8 , the figure shows a connection structure of a special-shaped handle 100 and a switch device 200. The connection structure includes: the connection device 300, the special-shaped handle 100 and the switch device 200. The special-shaped handle 100 is fixedly connected to the handle end first section 11 of the handle end connecting shaft 1. The switch device 200 and the device rotating shaft are fixedly connected to the device end end section 22 of the device end connecting shaft 2. The method of the connection structure includes: The connecting device 300 , the special-shaped handle 100 and the switch device 200 are provided.

[0033] Before the handle end connecting shaft 1 and the device end connecting shaft 2 are locked by the connecting shaft locking sleeve 3, the relative angle between the handle end connecting shaft 1 and the device end connecting shaft 2 is first adjusted to the specified installation angle of the device rotating shaft of the special-shaped handle 100 and the switch device 200, and then the end face of the handle end section 13 is abutted against the end face of the device end first section 21, and the handle end tooth portion is meshed with the device end tooth portion to limit the relative angle change.

[0034] The handle end connecting shaft 1 and the device end connecting shaft 2 are locked by the connecting shaft locking sleeve 3 .

[0035] The special-shaped handle 100 is fixedly connected to the handle end first section 11 of the handle end connecting shaft 1, and the switch device 200 and the device rotating shaft are fixedly connected to the device end last section 22 of the device end connecting shaft 2. Thus, the special-shaped handle 100, the switch device 200 and the device rotating shaft are assembled at the specified installation angle.

[0036] 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. These 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 device for connecting a special-shaped handle and a switch device, used for fixing a device shaft connecting a special-shaped handle and a switch device, characterized in that: The connecting device comprises: a handle end connecting shaft, a device end connecting shaft and a connecting shaft locking sleeve; the handle end connecting shaft comprises a handle end first section, a handle end last section and a handle end middle section between the handle end first section and the handle end last section, the handle end first section is used for fixed connection with the special-shaped handle; the device end connecting shaft comprises a device end first section and a device end last section, the device end last section is used for fixed connection with the device rotating shaft of the switch device; the device end connecting shaft and the handle end connecting shaft have a common axis, the device end first section of the device end connecting shaft is relative to the handle end last section of the handle end connecting shaft, and the connecting shaft locking sleeve has A locking sleeve first section surrounding the outer circumference of the middle section of the handle end, a locking sleeve middle section surrounding the outer circumference of the handle end section, and a locking sleeve end section surrounding the outer circumference of the device end first section, the end face of the locking sleeve first section abuts against the end face of the handle end first section, the end face of the device end first section has a device end tooth portion, the end face of the handle end section has a handle end tooth portion corresponding to the device end tooth portion, the device end tooth portion is meshed with the handle end tooth portion, and the relative angle between the handle end connecting shaft and the device end connecting shaft is the specified installation angle of the special-shaped handle and the device rotating shaft of the switch device, and the device end first section and the locking sleeve end section are threadedly connected.

2. The connection device of the special-shaped handle and the switch device according to claim 1, characterized in that: The fixed connection between the first section of the handle end and the special-shaped handle is a threaded connection, an interference fit between the shaft and the hole, welding or riveting.

3. The connection device of the special-shaped handle and the switch device according to claim 1, characterized in that: The fixed connection between the device end section and the device rotating shaft of the switch device is a threaded connection, an interference fit between the shaft and the hole, welding or riveting.

4. The connection device of the special-shaped handle and the switch device according to claim 1, characterized in that: The handle end tooth portion and the device end tooth portion are omitted, and the end surface of the first section of the device end and the end surface of the last section of the handle end are friction surfaces with a higher friction coefficient to limit the relative rotation of the device end connecting shaft and the handle end connecting shaft around the axis.

5. The connection device of the special-shaped handle and the switch device according to claim 1, characterized in that: The end surface of the first section of the device end is provided with a device end blind hole opening toward the handle end connecting shaft, and the end surface of the last section of the handle end is provided with a handle end blind hole opening toward the device end connecting shaft. The device end blind hole and the handle end blind hole together form a accommodating space, and an elastic element is provided inside the accommodating space, and the elastic element acts on the first section of the device end and the last section of the handle end respectively.

6. The connection device of the special-shaped handle and the switch device according to claim 1, characterized in that: The middle section of the handle end has a middle section shoulder located outside the locking sleeve body, wherein the inner diameter of the first section of the locking sleeve is larger than the outer diameter of the middle section shoulder, the outer diameter of the middle section shoulder is larger than the outer diameter of the middle section of the handle end, and the radial cross-section of the middle section shoulder is a polygonal structure.

7. The connection device of the special-shaped handle and the switch device according to claim 1, characterized in that: The radial cross section of the device end segment is a polygonal structure.

8. A connection structure between a special-shaped handle and a switch device, characterized in that: include: A special-shaped handle, a switch device and a connecting device as described in any one of claims 1 to 7, wherein the special-shaped handle is fixedly connected to the first section of the handle end of the handle end connecting shaft, and the switch device and the device shaft are fixedly connected to the last section of the device end of the device end connecting shaft.

9. A method for connecting a special-shaped handle to a switch device, characterized in that: include: Provide a special-shaped handle, a switch device and a connecting device according to any one of claims 1 to 7; Before the connecting shaft locking sleeve is locked, the relative angle between the connecting shaft at the handle end and the connecting shaft at the device end is first adjusted to the specified installation angle between the special-shaped handle and the device rotating shaft of the switch device, and then the end face of the end section of the handle end is abutted against the end face of the first section of the device end, and the toothed portion of the handle end is meshed with the toothed portion of the device end to limit the change of the relative angle; The handle end connecting shaft and the device end connecting shaft are locked by the connecting shaft locking sleeve; and, The special-shaped handle is fixedly connected to the handle end first section of the handle end connecting shaft, and the switch device and the device rotating shaft are fixedly connected to the device end last section of the device end connecting shaft.

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