A handle and transmission shell connecting structure capable of achieving quick assembly and quick disassembly

Abstract

The application provides a connecting structure of a transmission shaft and a transmission shell capable of achieving quick assembly and disassembly, which comprises the transmission shaft, a shell, a rotating wheel and a positioning assembly. The rotating wheel and the positioning assembly are arranged in the shell. The rotating wheel is provided with a first perforation. The transmission shaft is inserted into the first perforation through the shell. The transmission shaft is provided with an annular groove. The side wall of the rotating wheel is provided with a first gap along the arc surface of the rotating wheel. The positioning assembly is arranged on both sides of the rotating wheel. The positioning assembly comprises elastic telescopic positioning assemblies and elastic telescopic clamping assemblies arranged in the shell. The free end of the elastic telescopic positioning assembly abuts against the rotating wheel and can be clamped to the outer edge of the rotating wheel to achieve positioning. The free end of the elastic telescopic clamping assembly can pass through the first gap and be clamped to the annular groove to limit the axial displacement of the square shaft. The structure of the application realizes the quick connection of the transmission shell and the handle, thereby improving the installation speed of the product, reducing the number of handle accessories and lowering the product cost.

Description

Technical Field

[0001] This application relates to the field of door and window technology, and in particular to a connection structure between a handle and a transmission housing that enables quick installation and disassembly. Background Technology

[0002] In door and window hardware, the transmission box and handle are crucial transmission mechanisms for opening and closing doors and windows. As separate hardware products, the connection and fixation of the transmission box and handle to the door and window profiles must be carefully considered. To open and close a window or door, the handle connects to the drive mechanism, which in turn connects to the rotating component of the transmission housing via a drive shaft. When the handle rotates the drive shaft, it moves the transmission component inside the transmission housing, thus opening and closing the window sash. Existing fixing methods on the market involve the transmission box passing through the door and window profile, with a base on the handle and two fixing screws. These screws are connected to the threaded holes on the transmission box via the base, and the transmission box is secured by tightening the two screws during installation. This fixing method is difficult to achieve quick installation, is slow, and the need for a base and screws increases the number of handle accessories. The numerous connection parts between the drive shaft and the transmission housing also increase the likelihood of malfunctions. Therefore, a connection structure that enables quick installation of the handle is provided, realizing a rapid connection between the transmission housing and the handle, thereby improving the installation speed of the product, while reducing the number of handle accessories and lowering the product cost. Summary of the Invention

[0003] To address the aforementioned issues, this application proposes a connection structure between the handle and the transmission housing that enables quick installation and disassembly. By using a positioning component and a rotating wheel, a rapid connection between the transmission housing and the handle is achieved, thereby increasing the product's installation speed while reducing the number of handle accessories and lowering product costs.

[0004] This application is achieved through the following technical solution:

[0005] A connection structure between a drive shaft and a drive housing that enables quick assembly and disassembly includes a drive shaft, a housing, a rotating wheel, and a positioning component. The rotating wheel and the positioning component are disposed within the housing. The rotating wheel has a first through hole. The drive shaft passes through the housing and is inserted into the first through hole. The drive shaft has an annular groove. The side wall of the rotating wheel has a first notch along the arc surface of the rotating wheel.

[0006] The positioning components are disposed on both sides of the rotating wheel. The positioning components include an elastic telescopic positioning component and an elastic telescopic locking component disposed in the housing. The free end of the elastic telescopic positioning component abuts against the rotating wheel and can lock the outer edge of the rotating wheel to achieve positioning.

[0007] The telescopic direction of the elastic telescopic locking component is on the same straight line as the telescopic direction of the elastic telescopic positioning component. The free end of the elastic telescopic locking component can pass through the first notch and lock the annular groove to limit the axial displacement of the square shaft (2).

[0008] Furthermore, it also includes a housing and a positioning component. The elastic telescopic positioning component includes a locking component and a first elastic component. The first elastic component is disposed in the housing. The two ends of the first elastic component respectively abut against the inner side wall of the housing and the positioning component. The positioning component engages with the outer edge of the rotating wheel for positioning.

[0009] The elastic telescopic locking assembly includes a second elastic element and the locking element. The locking element, the positioning element, and the housing are slidably sleeved from the inside to the outside. The second elastic element is connected to the locking element. The locking element can move within the elastic range of the second elastic element so that one end of the locking element passes through the first notch and locks into the annular groove.

[0010] Furthermore, the card includes a limiting section and a sliding section, the cross-sectional area of ​​the limiting section is larger than the cross-sectional area of ​​the sliding section, the positioning element and the housing are sequentially sleeved outside the sliding section, and the second through hole is provided in the limiting section.

[0011] Furthermore, the end of the sliding section is provided with an arc surface, and the diameter of the arc surface is the same as the diameter of the annular groove.

[0012] Furthermore, the positioning component includes a limiting part and a positioning part, the limiting part is connected to the positioning part, the limiting part is engaged in the housing, and the positioning part extends out of the housing and cooperates with the rotating wheel for positioning.

[0013] Furthermore, the outer edge of the rotating wheel is provided with a plurality of positioning grooves, the direction of the positioning grooves is consistent with the axial direction of the rotating wheel, and the free end of the elastic telescopic positioning component fits the shape of the positioning grooves.

[0014] Furthermore, there are four positioning slots, with a gap between adjacent positioning slots.

[0015] Furthermore, the second elastic element is disposed inside the housing, and its two ends respectively abut against the inner sidewall of the housing and one end of the locking element.

[0016] Furthermore, the housing is provided with a spring groove, the second elastic element is disposed in the spring groove, the second elastic element can elastically extend and retract in the spring groove, and one end of the clip is located in the spring groove and connected to the second elastic element.

[0017] Furthermore, the card is provided with a second through hole, and a strip shell is provided on one side of the transmission shell for fixing the shell. The strip shell is provided with a first elongated hole corresponding to the position of the second through hole.

[0018] Furthermore, the second elastic element is disposed in the housing, and the two ends of the second elastic element abut against the inner side wall of the housing and one end of the locking member, respectively. The housing is provided with a third through hole, which corresponds to the positions of the second through hole and the first elongated hole. The housing is provided with multiple limiting flanges to limit the movement range of the locking member.

[0019] Furthermore, the drive shaft and the rotating wheel are provided with mutually cooperating tapered sections.

[0020] Furthermore, the first elastic element and / or the second elastic element are square springs, which are sleeved on the clip.

[0021] A connection structure between a handle and a transmission housing that enables quick assembly and disassembly includes a handle and the aforementioned connection structure. The handle is provided with a mounting hole that longitudinally mates with the transmission shaft. One end of the transmission shaft is inserted into the mounting hole. The transmission shaft and the handle are interference-fitted, or the transmission shaft is fixed in the mounting hole by setting a fixing structure.

[0022] Furthermore, the fixing structure is a screw, which is arranged longitudinally along the mounting hole, and the drive shaft has a longitudinal threaded through hole, and the drive shaft is threadedly connected to the screw.

[0023] Furthermore, the handle is provided with a transverse fixing through hole, the fixing through hole is connected to the mounting hole, and the fixing structure connects the fixing through hole and the drive shaft, fixing the drive shaft in the mounting hole.

[0024] Furthermore, the fixing structure is a screw, which is threadedly connected to the fixing through hole, and the end of the screw presses against the drive shaft to achieve fixation.

[0025] Furthermore, the fixing structure is a screw, which is threadedly connected to the fixing through hole. The drive shaft is provided with a groove or a through hole, and the screw is inserted into the groove or through hole to achieve fixing.

[0026] Furthermore, a threaded through hole is provided laterally inside the drive shaft, and the fixing structure is a screw. The screw is rotatably installed inside the threaded through hole, and the position of the threaded through hole is opposite to the position of the fixing through hole. Rotating the screw can press the screw against the side wall of the mounting hole to achieve fixation.

[0027] The above connection structure is applied to transmission components.

[0028] The technical solution of this application has the following beneficial effects:

[0029] 1. This application achieves quick assembly and disassembly of the transmission box and handle by setting a clip that passes through the rotating wheel to engage the transmission shaft, which can effectively improve the installation speed of the product, while reducing the number of handle accessories and lowering the product cost;

[0030] 2. This application achieves elastic positioning by setting a housing to limit the position of the positioning component and the locking component, and at the same time, it sets a first elastic component inside to provide elastic movement of the positioning component within a certain range, thereby improving the user's feel. Then, by utilizing the elastic cooperation of the locking component and the second elastic component, the installation and disassembly of the drive shaft can be controlled. No additional connecting structure is required, which makes installation convenient and reduces processing steps. Moreover, the first elastic component and the second elastic component used are both springs. Springs are general-purpose components and do not require additional design, thus reducing research and development and processing costs.

[0031] 3. In this application, the end of the clamp is provided with an arc surface, and the diameter of the arc surface is the same as the diameter of the annular groove of the drive shaft, so that the arc surface can fit with the inner sidewall of the annular groove without gap, and the clamping is still stable when the drive shaft rotates.

[0032] 4. In this application, a positioning groove is provided on the rotating wheel to cooperate with the positioning component to position the rotating wheel. The rotating wheel achieves positioning once every 90° rotation. A first notch is provided on both sides of the rotating wheel, mainly to avoid the rotating wheel from being misaligned with the locking component during rotation, so that the locking component can be inserted into the rotating wheel without affecting the rotation of the rotating wheel.

[0033] 5. The connection structure between the drive shaft and the drive housing in this application can be matched with different connection structures between the handle and the drive shaft to form a connection method between the handle and the drive housing. This application has a wide range of applications and practical value. Attached Figure Description

[0034] Figure 1 This is a three-dimensional schematic diagram of the connection structure in Embodiment 1 of the present invention;

[0035] Figure 2 This is a cross-sectional schematic diagram of the connection structure in Embodiment 1 of the present invention;

[0036] Figure 3 for Figure 2 A magnified view of a portion of AA;

[0037] Figure 4 This is a schematic diagram of the structure of the rotating wheel in this invention;

[0038] Figure 5 This is an exploded view of the positioning component according to Embodiment 1 of the present invention;

[0039] Figure 6 This is a schematic diagram of the card component according to Embodiment 1 of the present invention;

[0040] Figure 7 This is a schematic diagram of the structure of the box body according to Embodiment 1 of the present invention;

[0041] Figure 8 This is a schematic diagram of the positioning component in Embodiment 1 of the present invention;

[0042] Figure 9 This is a schematic diagram of the transmission shaft in Embodiment 1 of the present invention;

[0043] Figure 10 This is a schematic diagram of the shell structure in Embodiment 1 of the present invention;

[0044] Figure 11 This is a schematic diagram of the connection structure used in a door and window lock according to Embodiment 1 of the present invention;

[0045] Figure 12 This is a schematic diagram illustrating the disassembly of the drive shaft in Embodiment 1 of the present invention;

[0046] Figure 13 This is an exploded view of the positioning component in Embodiment 2 of the present invention;

[0047] Figure 14 This is a cross-sectional schematic diagram of the positioning component in Embodiment 2 of the present invention;

[0048] Figure 15 This is a schematic diagram of the structure of the positioning component after installation in Embodiment 2 of the present invention;

[0049] Figure 16 This is a schematic diagram of the transmission shaft in Embodiment 2 of the present invention;

[0050] Figure 17 This is a three-dimensional schematic diagram of the connection structure in Embodiment 2 of the present invention;

[0051] Figure 18 for Figure 17 A magnified view of a portion of AA;

[0052] Figure 19 This is a schematic diagram of the overall structure of Embodiment 3 of the present invention;

[0053] Figure 20 This is an exploded view of the structure of Embodiment 3 of the present invention;

[0054] Figure 21 This is a schematic diagram of the overall structure of Embodiment 4 of the present invention;

[0055] Figure 22 This is an exploded view of the structure of Embodiment 4 of the present invention;

[0056] Figure 23 This is a schematic diagram of the overall structure of Embodiment 5 of the present invention;

[0057] Figure 24 This is an exploded view of the structure of Embodiment 5 of the present invention;

[0058] Figure 25 This is a schematic diagram of the overall structure of Embodiment 6 of the present invention;

[0059] Figure 26 This is an exploded view of the structure of Embodiment 6 of the present invention;

[0060] Figure 27 This is a schematic diagram of the overall structure of Embodiment 7 of the present invention;

[0061] Figure 28 This is a schematic diagram of the overall structure of Embodiment 8 of the present invention;

[0062] Figure 29 This is a schematic diagram of the overall structure of Embodiment 9 of the present invention;

[0063] Figure 30 This is a schematic diagram of the overall structure of Embodiment 9 of the present invention.

[0064] The labels in the figures are explained as follows:

[0065] In the attached diagram, the components are: housing 1, first elongated hole 11, spring groove 12, slot 13, drive shaft 2, annular groove 21, tapered section 22, rotating wheel 3, first through hole 31, first notch 32, positioning groove 33, locking piece 41, second through hole 411, limiting section 412, sliding section 413, box body 42, third through hole 421, limiting flange 422, fixing flange 423, second notch 424, third notch 425, positioning piece 43, limiting part 431, positioning part 432, fourth notch 433, first elastic piece 44, second through hole 411, second elastic piece 45, profile 5, strip shell 6, handle A1, fixing through hole A11, cover plate A12, mounting hole A21, fixing structure A3, and nut block A31. Detailed Implementation

[0066] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Throughout the description, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions. Obviously, the described embodiments are merely some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0067] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0068] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" and "second" may explicitly or implicitly include at least one of the stated features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0069] Example 1

[0070] like Figure 1 As shown, a connection structure between a drive shaft 2 and a drive housing that enables quick assembly and disassembly is disclosed. This connection structure includes a drive shaft 2, a housing 1, a rotating wheel 3, and a positioning assembly. The rotating wheel 3 and the positioning assembly are disposed within the housing 1. The rotating wheel 3 has a first through hole 31, through which the drive shaft 2 passes and is inserted. The drive shaft 2 has an annular groove 21. The side wall of the rotating wheel 3 has a first notch 32 along its arc surface. The positioning assembly is disposed on both sides of the rotating wheel 3. The positioning assembly includes an elastic telescopic positioning assembly and an elastic telescopic locking assembly disposed within the housing. The free end of the elastic telescopic positioning assembly abuts against the rotating wheel 3 and can lock onto the outer edge of the rotating wheel 3 for positioning. The telescopic direction of the elastic telescopic locking assembly is on the same straight line as the telescopic direction of the elastic telescopic positioning assembly. The free end of the elastic telescopic locking assembly can pass through the first notch 32 and lock onto the annular groove 21 to limit the axial displacement of the square shaft 2. Positioning and fixing of the drive shaft are achieved by setting up elastic telescopic positioning components and elastic telescopic locking components. The overall structure is simple and easy to use.

[0071] In a preferred embodiment, the system further includes a housing 42 and a positioning member 43. The elastic telescopic positioning assembly includes a locking member 41 and a first elastic member 44. The first elastic member 44 is disposed inside the housing 42, and its two ends respectively abut against the inner sidewall of the housing and the positioning member 43. The positioning member 43 engages with the outer edge of the rotating wheel 3 for positioning. The elastic telescopic locking assembly includes a second elastic member 45 and a locking member 41. The locking member 41, the positioning member 43, and the housing are slidably fitted from the inside out. The second elastic member 45 is connected to the locking member 41, and the locking member 41 can move within the elastic range of the second elastic member 45 so that one end of the locking member 41 passes through the first notch 32 and engages with the annular groove 21.

[0072] In this embodiment, a locking piece 41 passes through the housing 42 and the positioning piece 43 to connect with the drive shaft 2. An annular groove 21 on the drive shaft 2 holds the locking piece 41 in place, ensuring that the locking piece 41 can securely hold the drive shaft 2 without affecting the elastic positioning of the positioning piece 43. This securely connects the drive shaft 2 to the housing 1. A second elastic piece 45 connects the locking piece 41 to the housing 1, allowing the locking piece 41 to move within the elastic range of the second elastic piece 45. Locking pieces 41 are also provided on both sides of the rotating wheel 3 to facilitate fixing the drive shaft 2 at the center position of the rotating wheel 3. When this embodiment is used, when the drive shaft 2 is inserted into the transmission housing, the locking piece 41 inside the transmission housing automatically locks the drive shaft 2, achieving a fixed connection between the drive shaft 2 and the transmission housing. Then, the square hole on the handle mates with the drive shaft 2 to fix them together, achieving a quick and secure connection between the handle A1 and the drive shaft 2. During disassembly, the handle is removed first, followed by the drive shaft 2. Removing the drive shaft 2 only requires a thin rod-shaped tool to pry open the locking piece 41 on the drive housing, allowing for quick detachment. This demonstrates that the technical solution enables rapid assembly and disassembly of the drive housing and handle.

[0073] In a preferred embodiment, the outer side of the housing 42 is provided with a fixing flange 423 for fixing the housing 42 inside the housing 1. The housing 1 is provided with a slot 13 for engaging the fixing flange 423, thereby fixing the housing 42. The two ends of the housing 42 are respectively provided with a second notch 424 and a third notch 425. The sliding section of the locking member 41 passes through the second notch 424, and the outer contour of the limiting section 412 is larger than the second notch 424, and it is engaged outside the housing 42 to play a limiting role. The positioning part 432 of the positioning member protrudes from the third notch 425. The contour of the limiting part 431 is larger than the third notch 425, thereby playing a limiting role. The positioning part 432 of the positioning member 43 is provided with a fourth notch 433, and the locking member 41 extends out from the fourth notch 433 and connects to the drive shaft in the rotating wheel.

[0074] In a preferred embodiment, the locking member 41 includes a limiting section 412 and a sliding section 413. The cross-sectional area of ​​the limiting section 412 is larger than that of the sliding section 413. A positioning member 43 and a housing 42 are sequentially fitted over the sliding section 413. A second through hole 411 is provided in the limiting section 412. The locking member 41 is fitted with the positioning member 43 and the housing 42 through the sliding section 413, allowing the sliding section 413 to slide freely within the positioning member 43 and the housing 42. The limiting section 412 can be locked outside the housing 42. The second through hole 411 facilitates the use of tools to pull the drive shaft 2 when installing and removing it, enabling quick installation and removal of the drive shaft 2.

[0075] In a preferred embodiment, the end of the sliding segment 413 is provided with an arc surface, the diameter of which is the same as the diameter of the annular groove 21. The arc surface of the end of the sliding segment 413 facilitates connection with the annular groove 21 of the drive shaft 2. The end face of the sliding segment 413 and the annular groove 21 of the drive shaft 2 are not limited to arc surfaces, but can also be multi-faceted surfaces that can be rotated. The diameter of the arc surface is the same as the diameter of the annular groove 21, which allows for clearance fit between the two, making rotation smoother during operation.

[0076] In a preferred embodiment, the positioning member 43 includes a limiting part 431 and a positioning part 432. The limiting part 431 is connected to the positioning part 432. The limiting part 431 is engaged inside the housing 42, and the positioning part 432 extends outside the housing 42. It cooperates with the rotating wheel 3 for positioning. The limiting part 431 is engaged inside the housing 42 and cooperates with the first elastic member 44 to form an elastic positioning function. The positioning part 432 cooperates with the rotating wheel 3 to achieve rotational positioning. This positioning function is consistent with the conventional method.

[0077] In a preferred embodiment, the outer edge of the rotating wheel 3 is provided with a plurality of positioning grooves 33, the direction of the positioning grooves 33 is consistent with the axial direction of the rotating wheel 3, and the end of the positioning part 432 fits the shape of the positioning grooves 33.

[0078] In a preferred embodiment, four positioning grooves 33 are provided, with a 90° interval between two adjacent positioning grooves 33. The positioning grooves 33 are used to cooperate with the positioning member 43 to position the rotating wheel 3. The rotating wheel 3 achieves positioning once every 90° rotation. The first notches 32 on both sides are mainly used to avoid the rotating wheel 3 from being positioned by the locking member 41 during rotation.

[0079] In a preferred embodiment, the second elastic member 45 is disposed inside the housing 1, with its two ends abutting against the inner wall of the housing 1 and one end of the locking member 41, respectively. The contact of the two ends of the second elastic member 45 with the inner wall of the housing 1 and the locking member 41 facilitates the movement of the locking member 41 within the elastic range of the second elastic member 45. After the drive shaft 2 is engaged, the second elastic member 45 exerts a certain elastic force on the locking member 41 by contacting the inner side of the housing 1, and the elastic force on both sides clamps and secures the drive shaft 2.

[0080] In a preferred embodiment, the housing 1 is provided with a spring groove 12, and a second elastic element 45 is disposed in the spring groove 12. The second elastic element 45 can elastically extend and retract within the spring groove 12. One end of the clamping member 41 is located within the spring groove 12 and connected to the second elastic element 45. The second elastic body is a spring. Providing the spring groove 12 facilitates the stable movement of the second elastic body within the spring groove 12, avoiding positional displacement that could lead to instability in clamping and fixing the transmission shaft 2.

[0081] In a preferred embodiment, the clip 41 has a second through hole 411, and a strip-shaped shell 6 is provided on one side of the transmission housing for fixing the housing 1. The strip-shaped shell has a first elongated hole 11 corresponding to the position of the second through hole 411. When it is necessary to remove the transmission shaft 2 from the transmission housing, a thin rod-shaped tool can be inserted through the first elongated hole 11 into the second through hole 411 and pressed... Figure 11 The arrow indicates that the sliding clip 41 prevents it from locking the drive shaft 2, thus allowing the drive shaft 2 to be pulled out and achieving quick disassembly.

[0082] In a preferred embodiment, the first elastic element 44 and / or the second elastic element 45 are square springs. The square springs are sleeved on the clip 41, which facilitates installation. The springs are hollow, which allows the clip 41 to pass through directly. Moreover, square springs are easy to manufacture and readily available.

[0083] Example 2

[0084] The difference between this embodiment and Embodiment 1 is that: the second elastic member 45 is disposed inside the housing 42, and the two ends of the second elastic member 45 abut against the inner side wall of the housing 42 and one end of the clamping member 41, respectively. The housing 42 is provided with a third through hole 421, which corresponds to the positions of the second through hole 411 and the first elongated hole 11. The housing 42 is provided with multiple limiting flanges 422 to limit the movement range of the clamping member 41. When the second elastic member 45 is disposed inside the housing 42, the limiting section 412 of the clamping member 41 is also disposed inside the housing 42. The housing 42 has additional limiting flanges 422 to provide limiting for the clamping member 41. The housing 42 can be provided with a third through hole 421 to allow the disassembly tool to avoid obstruction. When it is necessary to install or disassemble the drive shaft 2, a tool is used to pull the clamping member 41 through the second through hole 411, the first elongated hole 11 and the third through hole 421 to adjust the distance between the ends of the two clamping members 41 to achieve installation or disassembly. Furthermore, the integration of a second elastic element simplifies the shell structure to some extent and enhances its modularity.

[0085] In a preferred embodiment, the drive shaft 2 and the rotating wheel 3 are provided with mutually cooperating tapered sections. The tapered sections on the drive shaft 2 and the rotating wheel 3 have a taper α ranging from 0 to 10°, but not zero. This design facilitates the insertion of the drive shaft 2 into the square hole of the rotating wheel 3 while also eliminating the gap between the drive shaft 2 and the square hole of the rotating wheel 3, thereby preventing the handle from wobbling during use. The first elastic element 44 is a square spring, which is sleeved on the locking element 41. The structure is simple, easy to implement, and easy to operate.

[0086] Example 3

[0087] A connection structure between a handle and a drive shaft includes a handle A1 and the connection structure described in Embodiment 1. In this embodiment, in addition to the drive shaft 2 from Embodiment 1, drive shafts from Embodiments 2-4 can also be used. The handle A1 has a mounting hole A21 that longitudinally mates with the drive shaft 2. One end of the drive shaft 2 is inserted into the mounting hole A21. The drive shaft 2 and the handle A1 are fixed together by a fixing structure A3, which is a screw positioned longitudinally along the mounting hole A21. The drive shaft 2 has a longitudinal threaded through hole, and the drive shaft 2 is threadedly connected to the screw. The drive shaft is inserted into the mounting hole of the handle A1, and the screw is inserted from the front of the handle A1 and screwed into the threaded drive shaft hole, clamping the handle A1 to fix the handle A1 and the drive shaft. For aesthetic purposes, a cover plate A12 is provided to cover the screw installation position after installation. Disassembly is performed simply by unscrewing the screw.

[0088] Example 4

[0089] A connection structure between a handle and a drive shaft includes a handle A1 and the connection structure in Embodiment 1. In this embodiment, in addition to the connection structure in Embodiment 1, the connection structure in Embodiment 2 can also be used. The handle A1 is provided with a mounting hole A21 that longitudinally cooperates with the drive shaft 2. One end of the drive shaft 2 is inserted into the mounting hole A21. The drive shaft 2 is pressed into the handle A1 by interference fit to fix the handle A1 and the drive shaft. When disassembling, a large external force is required to pull out the drive shaft.

[0090] Example 5

[0091] The difference from Embodiment 4 is that the drive shaft 2 is inserted into the mounting hole A21 of the handle A1, and the screw is inserted from the front of the handle A1, passing through the drive shaft, and screwed into the threaded nut block A31 to clamp the handle A1 and the drive shaft, thereby fixing the handle A1 and the drive shaft. The shape of the nut block is not limited and can be a wheel or other form of threaded accessory. Adding a part between the drive shaft and the nut block is also considered as one embodiment of this solution.

[0092] Example 6

[0093] A connection structure between a handle and a drive shaft includes a handle A1 and the connection structure in Embodiment 2. In this embodiment, in addition to the connection structure in Embodiment 1, the connection structure in Embodiment 2 can also be used. The handle A1 has a transverse fixing through hole A11, which connects to a mounting hole A21 and the outside of the handle A1. A fixing structure A3 connects the fixing through hole A11 and the drive shaft 2, fixing the drive shaft 2 within the mounting hole A21. The fixing structure A3 is a screw, which is threaded into the fixing through hole A11. The end of the screw presses against the drive shaft 2 to achieve fixation. Disassembly is simple; just remove the screw. Both installation and disassembly are very convenient.

[0094] Example 7

[0095] The difference from Embodiment 6 is that the fixing structure A3 is a screw, the drive shaft 2 is provided with a threaded hole, the screw passes directly through the fixing through hole A11 and connects with the threaded hole on the drive shaft 2, the drive shaft is fixed in the threaded hole and the fixing through hole A11, so that the drive shaft will not easily come off the handle.

[0096] Example 8

[0097] The difference from embodiment 6 is that the fixing structure A3 is a screw, which is threaded to the fixing through hole A11. The drive shaft 2 has a through hole. After the screw is screwed through the fixing through hole A11, it is inserted into the through hole to achieve fixation. Both ends of the screw are threaded to the through hole and the fixing through hole A11 on the drive shaft, so that the drive shaft will not easily come off the handle.

[0098] Example 9

[0099] The difference from Embodiment 6 is that a threaded through hole is provided laterally inside the drive shaft 2, and the fixing structure A3 is a screw. The screw is rotatably installed in the threaded through hole, and the position of the threaded through hole is opposite to the position of the fixing through hole A11. Rotating the screw can fix the screw against the side wall of the mounting hole A21. During installation, a threaded hole is opened on the drive shaft, the calibrator screw is installed into the threaded through hole, and then the drive shaft is installed into the handle A1. The calibrator screw is aligned with the opening position of the handle A1. The screw is unscrewed from the drive shaft with a wrench, pressing against the handle A1 to achieve fixation. The drive shaft can be removed by reversing the operation.

[0100] Of course, this application may have many other implementation methods. Based on this implementation method, other implementation methods obtained by those skilled in the art without any creative effort are all within the scope of protection of this application.

Claims

1. A connection structure between a drive shaft and a drive housing that enables quick assembly and disassembly, comprising a drive shaft (2), a housing (1), a rotating wheel (3), and a positioning assembly, wherein the rotating wheel (3) and the positioning assembly are disposed within the housing (1), the rotating wheel (3) having a first through hole (31), and the drive shaft (2) passing through the housing (1) and inserted into the first through hole (31), characterized in that, The drive shaft (2) is provided with an annular groove (21), and the side wall of the rotating wheel (3) is provided with a first notch (32) along the arc surface of the rotating wheel (3); The positioning components are arranged on both sides of the rotating wheel (3). The positioning components include an elastic telescopic positioning component and an elastic telescopic locking component arranged in the housing (1). The free end of the elastic telescopic positioning component abuts against the rotating wheel (3) and can lock the outer edge of the rotating wheel (3) to achieve positioning. The telescopic direction of the elastic telescopic locking component is on the same straight line as the telescopic direction of the elastic telescopic positioning component. The free end of the elastic telescopic locking component can pass through the first notch (32) to lock the annular groove (21) to limit the axial displacement of the transmission shaft (2). It also includes a housing (42) and a positioning member (43). The elastic telescopic positioning assembly includes a locking member (41) and a first elastic member (44). The first elastic member (44) is disposed inside the housing (42). The two ends of the first elastic member (44) respectively abut against the inner side wall of the housing (42) and the positioning member (43). The positioning member (43) engages with the outer edge of the rotating wheel (3) for positioning. The elastic telescopic locking assembly includes a second elastic element (45) and the locking element (41). The locking element (41), the positioning element (43), and the housing (42) are slidably sleeved from the inside to the outside. The second elastic element (45) is connected to the locking element (41). The locking element (41) can move within the elastic range of the second elastic element (45) so that one end of the locking element (41) passes through the first notch (32) and locks the annular groove (21).

2. The connection structure between the drive shaft and the drive housing that enables quick assembly and disassembly according to claim 1, characterized in that, The card (41) includes a second through hole (411), a limiting section (412) and a sliding section (413). The cross-sectional area of ​​the limiting section (412) is larger than the cross-sectional area of ​​the sliding section (413). The positioning member (43) and the housing (42) are sequentially sleeved outside the sliding section (413). The second through hole (411) is provided in the limiting section (412).

3. The connection structure between the drive shaft and the drive housing that enables quick assembly and disassembly according to claim 2, characterized in that, The end of the sliding section (413) is provided with an arc surface, and the diameter of the arc surface is the same as the diameter of the annular groove (21).

4. The connection structure between the drive shaft and the drive housing that enables quick assembly and disassembly according to claim 1, characterized in that, The positioning component (43) includes a limiting part (431) and a positioning part (432). The limiting part (431) is connected to the positioning part (432). The limiting part (431) is engaged inside the housing (42). The positioning part (432) extends outside the housing (42) and cooperates with the rotating wheel (3) for positioning.

5. The connection structure between the drive shaft and the drive housing that enables quick assembly and disassembly according to claim 1, characterized in that, The outer edge of the rotating wheel (3) is provided with a plurality of positioning grooves (33), the direction of the positioning grooves (33) is consistent with the axial direction of the rotating wheel (3), and the free end of the elastic telescopic positioning component fits the shape of the positioning grooves (33).

6. The connection structure between the drive shaft and the drive housing that enables quick assembly and disassembly according to claim 5, characterized in that, The positioning groove (33) is provided in four places, with a 90° interval between two adjacent positioning grooves (33).

7. The connection structure between the drive shaft and the drive housing that enables quick assembly and disassembly according to claim 1, characterized in that, The second elastic member (45) is disposed inside the housing (1), and the two ends of the second elastic member (45) abut against the inner side wall of the housing (1) and one end of the clip (41), respectively.

8. The connection structure between the drive shaft and the drive housing that enables quick assembly and disassembly according to claim 7, characterized in that, The housing (1) is provided with a spring groove (12), and the second elastic member (45) is disposed in the spring groove (12). The second elastic member (45) can elastically extend and retract within the spring groove (12). One end of the clip (41) is located in the spring groove (12) and connected to the second elastic member (45).

9. The connection structure between the drive shaft and the drive housing that enables quick assembly and disassembly according to claim 1, characterized in that, The card (41) is provided with a second through hole (411), and a strip shell (6) is provided on one side of the transmission shell for fixing the shell (1). The strip shell is provided with a first elongated hole (11) corresponding to the position of the second through hole (411).

10. The connection structure between the drive shaft and the drive housing that enables quick assembly and disassembly according to claim 9, characterized in that, The second elastic member (45) is disposed inside the housing (42). The two ends of the second elastic member (45) abut against the inner side wall of the housing (42) and one end of the locking member (41), respectively. The housing (42) is provided with a third through hole (421). The third through hole (421) corresponds to the position of the second through hole (411) and the first elongated hole (11). The housing (42) is provided with a plurality of limiting flanges (422) to limit the movement range of the locking member (41).

11. The connection structure between the drive shaft and the drive housing that enables quick assembly and disassembly according to claim 10, characterized in that, The drive shaft (2) and the wheel (3) are provided with mutually cooperating tapered sections (22).

12. The connection structure between the drive shaft and the drive housing that enables quick assembly and disassembly according to claim 1, characterized in that, The first elastic element (44) and / or the second elastic element (45) are square springs, which are sleeved on the clip (41).

13. A connection structure between a handle and a transmission housing that enables quick assembly and disassembly, characterized in that, The device includes a handle (A1) and a connection structure as described in any one of claims 1-12. The handle (A1) is provided with a mounting hole (A21) that longitudinally engages with the drive shaft (2). One end of the drive shaft (2) is inserted into the mounting hole (A21). The drive shaft (2) and the handle (A1) are interference-fitted or the drive shaft (2) is fixed in the mounting hole (A21) by setting a fixing structure (A3).

14. The application of the connection structure as described in any one of claims 1-12 in a transmission assembly.

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