Eccentric alignment structure, handle and door and window locking structure

Abstract

The utility model discloses an eccentric alignment structure, a handle and a door and window locking structure, the eccentric alignment structure comprises an inner shaft sleeve body, a first inner hole is formed in the inner shaft sleeve body along the axial direction, and the outer ring of the inner shaft sleeve body and the central axis of the first inner hole are eccentrically arranged; a second inner hole is formed in the outer shaft sleeve body in the axial direction, and the outer ring of the outer shaft sleeve body and the central axis of the second inner hole are eccentrically arranged; the inner shaft sleeve body is arranged in the second inner hole. According to the eccentric alignment structure provided by the embodiment of the utility model, the outer ring of the inner shaft sleeve body and the central axis of the first inner hole formed in the inner shaft sleeve body are eccentrically arranged, and the outer ring of the outer shaft sleeve body and the central axis of the second inner hole formed in the outer shaft sleeve body are eccentrically arranged, so that the to-be-mounted object is sleeved in the first inner hole; the inner shaft sleeve body is arranged in the second inner hole, then the outer shaft sleeve body is arranged in the to-be-installed hole position in a sleeved mode, and the problem that the to-be-installed object has axis deviation in the installation hole, and installation and use are not smooth is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of door and window accessories, in particular to an eccentric alignment structure, a handle and a door and window locking structure. Background Art

[0002] In the existing door and window locking structure, it is generally composed of a fan body, a lock body and a handle, and both the lock body and the handle need to be fixed on the fan body. The fan body will be processed with a handle mounting hole, and the handle passes through the handle mounting hole on the fan body and connects with the rotation center hole of the lock body, so that the handle drives the lock body to complete the locking action. However, there is often a deviation between the processing size of the handle mounting hole and the design size, resulting in the rotation center hole of the lock body and the handle mounting hole of the fan body not being on the same axis, which leads to the handle being installed unsmoothly, or the handle having a large rotation resistance and being unsmooth. If the deviation is serious, the handle cannot be installed normally, and high processing accuracy is required.

[0003] The prior art provides a solution, specifically, enlarging the size of the handle mounting hole on the fan body so that there is a larger gap between the handle rotation axis and the handle mounting hole. This gap is used to eliminate the influence of large handle rotation resistance, unsmoothness, or even inability to assemble caused by the deviation between the rotation center hole of the lock body and the axis of the handle mounting hole of the fan body. However, this solution will bring about the problem of large shaking of the handle during use, giving the user a feeling of instability and extremely poor user experience.

[0004] Based on the above situation, the patent with patent number 201910218915.2 provides a positioning device, which includes a limit ring and a bearing sleeve. The inner hole and outer circle of the bearing sleeve are eccentrically set. The bearing sleeve is rotated to adjust the handle shaft and the lock body rotation center hole to coincide. However, since the eccentricity of the bearing sleeve is a fixed value, assuming that the eccentricity of the bearing sleeve is A, the error of the axis of the lock body rotation center hole and the fan body handle mounting hole in any direction is exactly A, and then it can be adjusted to coincide with the lock body rotation center hole and the handle rotation axis; assuming that the error of the axis of the lock body rotation center hole and the fan body handle mounting hole in any direction is not equal to A or the axis of the lock body rotation center hole and the fan body handle mounting hole are already coaxial, then the eccentric bearing sleeve alone will not be able to adjust to coincide with the lock body center hole and the handle rotation axis, so this method still has great limitations. Utility Model Content

[0005] The utility model aims to provide an eccentric alignment structure, a handle and a door and window locking structure, aiming to solve the problem that in the existing door and window locking structure, an axial deviation of the object to be installed exists in the mounting hole, resulting in unsmooth installation and use.

[0006] The utility model provides an eccentric alignment structure, comprising:

[0007] An inner sleeve, the inner sleeve comprising an inner sleeve body, the inner sleeve body being provided with a first inner hole in the axial direction, and an outer ring of the inner sleeve body being eccentrically arranged with respect to a central axis of the first inner hole;

[0008] An outer sleeve, the outer sleeve comprising an outer sleeve body, the outer sleeve body being provided with a second inner hole in the axial direction, and an outer ring of the outer sleeve body being eccentrically arranged with respect to a central axis of the second inner hole;

[0009] The inner sleeve body is disposed in the second inner hole.

[0010] Optionally, the outer ring of the inner sleeve body is parallel to the central axis of the first inner hole; the outer ring of the outer sleeve body is parallel to the central axis of the second inner hole.

[0011] Optionally, the outer ring of the inner sleeve body is coaxially arranged with the central axis of the second inner hole.

[0012] Optionally, a first opening is opened on one side of the inner sleeve body along the longitudinal section, and a second opening is opened on one side of the outer sleeve body along the longitudinal section.

[0013] The utility model also provides a handle, comprising the eccentric alignment structure as described in any one of the above items, wherein a rotating shaft portion is arranged at one end of the handle, the rotating shaft portion is connected to a rotating shaft, and the rotating shaft sleeve is arranged in the first inner hole.

[0014] The utility model also provides a door and window locking structure, comprising: a lock body, an eccentric alignment structure as described in any of the above items, and a handle as described above, wherein the lock body is used to be inserted in a fan body, a handle mounting hole is provided on the fan body, the outer shaft sleeve body is sleeved in the handle mounting hole, and the rotating shaft passes through the rotating center hole of the lock body.

[0015] Optionally, the lock body is inserted into a lock body hole opened at one end of the fan body, and the lock body is inserted into the lock body hole, and the handle mounting hole is arranged on one side of the fan body and communicated with the lock body hole.

[0016] Optionally, two handles are provided and are respectively arranged on both sides of the fan body, two eccentric alignment structures are provided corresponding to the handles, and the rotating shaft is connected between the rotating shaft parts of the two handles.

[0017] Optionally, the inner sleeve further comprises a first rib arranged along the outer circumference of one end of the inner sleeve body, and the first rib is located at the circumference of the second inner hole.

[0018] Optionally, a step portion is provided on the periphery of one end of the second inner hole, and the first rib is located on the step portion.

[0019] Optionally, the outer sleeve further comprises a second rib arranged along the outer circumference of one end of the outer sleeve body, wherein the second rib is located at the circumference of the handle mounting hole and outside the fan body.

[0020] Optionally, the outer ring of the outer sleeve body is coaxially arranged with the central axis of the handle mounting hole.

[0021] The eccentric alignment structure of the embodiment of the utility model is configured such that the outer ring of the inner sleeve body and the central axis of the first inner hole opened by the inner sleeve body are eccentrically arranged, and the outer ring of the outer sleeve body and the central axis of the second inner hole opened by the outer sleeve body are eccentrically arranged. The object to be installed is sleeved in the first inner hole, the inner sleeve body is arranged in the second inner hole, and the outer sleeve body is sleeved in the hole to be installed. This can achieve the adjustment of the central axis of the object to be installed within the range of the hole to be installed, thereby solving the problem of axis deviation of the object to be installed in the installation hole, which leads to unsmooth installation and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 An exploded schematic diagram of the eccentric alignment structure provided by the utility model;

[0024] Figure 2 A schematic diagram of the structure of the inner shaft sleeve provided by the utility model;

[0025] Figure 3 A structural schematic diagram of the inner shaft sleeve provided by the utility model from another perspective;

[0026] Figure 4 A schematic diagram of the structure of the outer shaft sleeve provided by the utility model;

[0027] Figure 5 A structural schematic diagram of the outer shaft sleeve provided by the utility model from another perspective;

[0028] Figure 6 A schematic structural diagram of a first opening of the inner sleeve body provided by the utility model;

[0029] Figure 7 A schematic diagram of the structure of the second opening of the outer sleeve body provided by the utility model;

[0030] Figure 8 A schematic diagram of the structure of the handle provided by the utility model;

[0031] Fig. 9 An exploded schematic diagram of the door and window locking structure provided by the utility model;

[0032] Fig.10 A schematic cross-sectional view of the door and window locking structure provided by the utility model;

[0033] Fig.11 for Fig.10 A is a schematic diagram of the enlarged structure of the middle part;

[0034] Fig.12 for Fig.11 Schematic diagram of the enlarged structure of B;

[0035] Fig.13 This is a structural schematic diagram of the outer sleeve body provided by the utility model and the central axis of the second inner hole being coaxially arranged.

[0036] Markings in the figure:

[0037] 10. Eccentric alignment structure; 11. Inner sleeve; 111. Inner sleeve body; 1111. First opening; 112. First inner hole; 113. First axis; 114. Second axis; 115. First rib; 12. Outer sleeve; 121. Outer sleeve body; 1211. Second opening; 122. Second inner hole; 1221. Step; 123. Third axis; 124. Fourth axis; 125. Second rib; 20. Handle; 21. Rotating shaft; 22. Rotating shaft; 30. Fan body; 31. Handle mounting hole; 311. Fifth axis; 32. Lock body hole; 40. Lock body; 41. Rotating center hole. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0040] It should also be understood that the terms used in this utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in this utility model specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0041] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0042] See also Figures 1 to 5 The embodiment of the utility model provides an eccentric alignment structure 10, including: an inner sleeve 11, the inner sleeve 11 includes an inner sleeve body 111, the inner sleeve body 111 is provided with a first inner hole 112 along the axial direction, the outer ring of the inner sleeve body 111 is eccentrically arranged with the central axis of the first inner hole, the outer sleeve 12 includes an outer sleeve body 121, the outer sleeve body 121 is provided with a second inner hole 122 along the axial direction, the outer ring of the outer sleeve body 121 is eccentrically arranged with the central axis of the second inner hole The sleeve body 111 is arranged in the second inner hole 122; for the convenience of distinction, the central axis of the outer ring of the inner sleeve body 111 is referred to as the first axis 113, and the central axis of the first inner hole is referred to as the second axis 114, that is, the first axis 113 and the second axis 114 are eccentrically arranged; the central axis of the outer ring of the outer sleeve body 121 is referred to as the third axis 123, and the central axis of the second inner hole is referred to as the fourth axis 124, that is, the third axis 123 and the fourth axis 124 are eccentrically arranged. The eccentric alignment structure 10 of the embodiment of the utility model can achieve the adjustment of the central axis of the object to be installed within the range of the hole to be installed by sleeve-arranging the object to be installed in the first inner hole 112, the inner sleeve body 111 is arranged in the second inner hole 122, and the outer sleeve body 121 is sleeved in the hole to be installed, so as to solve the problem of axis deviation of the object to be installed in the hole to be installed.

[0043] It should be noted that the inner sleeve body 111 and the outer sleeve body 121 mentioned in this embodiment are cylindrical, and each has an axially arranged circular through hole inside, namely the first inner hole 112 and the second inner hole 122, for accommodating the shaft to facilitate the shaft rotation. The first axis 113 and the second axis 114 are eccentrically arranged, and the third axis 123 and the fourth axis 124 are eccentrically arranged, which is actually the eccentric arrangement of the outer ring of the inner sleeve body 111 and the inner hole, and the eccentric arrangement of the outer ring of the outer sleeve body 121 and the inner hole, so that the inner sleeve body 111 and the outer sleeve body 121 can rotate relative to each other around the axial direction, so that the radial relative position between the inner sleeve 11 and the outer sleeve 12 can be adjusted, and the assembly accuracy of the object to be installed can be improved.

[0044] Further, such as Figures 2 to 5 As shown, the first axis 113 is parallel to the second axis 114; the third axis 123 is parallel to the second axis 114, that is, there is no obvious eccentricity or inclination between the first axis 113 and the second axis 114, and there is no obvious eccentricity or inclination between the third axis 123 and the fourth axis 124, which can achieve a smoother relative rotation movement between the inner sleeve body 111 and the outer sleeve body 121. In addition, this design can also ensure the installation stability of the inner sleeve body 111 and the outer sleeve body 121 and the object to be installed. The inner sleeve 11 and the outer sleeve 12 can be easily aligned and fixed on the corresponding mounting holes during assembly, thereby improving the efficiency of assembly, reducing errors in the assembly process, and improving the stability of the object to be installed during use.

[0045] Further, such as Figure 3 As shown, the first axis 113 and the second axis 114 are coaxially arranged. In this embodiment, the first axis 113 and the second axis 114 are coaxially arranged, and the size of the inner sleeve body 111 matches the size of the second inner hole 122. During the installation process, the inner sleeve body 111 cooperates with the second inner hole 122 to facilitate adjustment of the radial relative position of the inner sleeve 11 and the outer sleeve 12, so that the central axis of the object to be installed coincides with the installation hole, making the installation and use process smoother and greatly improving the assembly accuracy.

[0046] Further, such as Figure 6 and Figure 7 As shown, a first opening 1111 is provided on one side of the inner sleeve body 111 along the longitudinal section, and a second opening 1211 is provided on one side of the outer sleeve body 121 along the longitudinal section. In this embodiment, when there is a size difference between the inner sleeve body 111 and the outer sleeve body 121, the provision of the first opening 1111 and the second opening 1211 can provide elastic adaptability for the inner sleeve body 111 and the outer sleeve body 121 to ensure a good connection between the inner sleeve body 111 and the outer sleeve body 121. Specifically, when the circular shaft diameter of the first inner hole 112 of the inner sleeve body 111 is greater than the circular shaft diameter of the second inner hole 122 of the outer sleeve body 121, since the second opening 1211 is provided on the outer sleeve body 122, the circular shaft diameter of the second inner hole 122 can be adjusted, so that the circular shaft diameter of the second inner hole 122 is greater than the circular shaft diameter of the first inner hole 112, and at this time, the inner sleeve body 111 can be sleeved in the outer sleeve body 121. Alternatively, when the circular shaft diameter of the second inner hole 122 of the outer sleeve body 121 is smaller than the circular shaft diameter of the first inner hole 122 of the inner sleeve body 111, the circular shaft diameter of the first inner hole 112 can be adjusted so that the circular shaft diameter of the first inner hole 112 is smaller than the circular shaft diameter of the second inner hole 122. At this time, the inner sleeve body 111 can be sleeved in the outer sleeve body 121.

[0047] like Figure 8 As shown, the utility model further provides a handle 20, including the eccentric alignment structure 10 as described above, a rotating shaft portion 21 is provided at one end of the handle 20, the rotating shaft portion 21 is connected to a rotating shaft 22, and the rotating shaft 22 is sleeved in the first inner hole 112. In the embodiment of the utility model, by providing the rotating shaft portion 21 at one end of the handle 20, the rotating shaft portion 21 is connected to a rotating shaft 22, so that the handle 20 can rotate around the rotating shaft 22, thereby realizing the rotation function of the handle 20.

[0048] like Fig. 9 and Fig.10 As shown, the utility model further provides a door and window locking structure, comprising: a lock body 40, the eccentric alignment structure 10 as described above, and a handle 20, wherein the lock body 40 is used to be inserted in the fan body 30, the fan body 30 is provided with a handle mounting hole 31, the outer shaft sleeve body 121 is sleeved in the handle mounting hole 31, and the rotating shaft 22 passes through the rotating center hole 41 of the lock body 40. In the embodiment of the utility model, the handle mounting hole 31 is provided on the fan body 30, and the handle 20 is connected with a rotating shaft portion 21, and the user can twist the handle 20 by holding it. Since the rotating shaft 22 passes through the rotating center hole 41 of the lock body 40, the rotating shaft 22 can drive the lock body 40 to open or close, thereby realizing the switch operation of the door and window. Furthermore, the rotating shaft 22 passes through the rotating center hole 41 of the lock body 40 and is sleeved in the first inner hole 112. The size of the outer sleeve body 121 matches the size of the handle mounting hole 31, so that the outer sleeve body 121 can be sleeved in the handle mounting hole 31. In this embodiment, the deviation value of the axis of the rotating center hole of the lock body and the axis of the handle mounting hole of the sector body can be any value within the design range. When it is necessary to adjust the axis of the rotating center hole 41 of the lock body 40 and the axis of the handle mounting hole 31, it is only necessary to adjust the radial relative position of the inner sleeve 11 and the outer sleeve 12, so that the axis of the rotating center hole 41 of the lock body 40 and the axis of the handle mounting hole 31 can be coincident, thereby improving the stability of the system.

[0049] Furthermore, the lock body 40 is inserted into the lock body hole 32 opened at one end of the fan body 30, and the lock body 40 is inserted into the lock body hole 32. The handle mounting hole 31 is provided at one side of the fan body 30 and communicates with the lock body hole 32. In this embodiment, the lock body 40 is inserted into the lock body hole 32 from one end of the fan body 30, and the rotation shaft 22 first passes through the handle mounting hole 31 and then passes through the rotation center hole 41 of the lock body 40, so as to realize locking and unlocking of the fan body 30.

[0050] Furthermore, two handles 20 are provided and are respectively provided on both sides of the fan body 30, and two eccentric alignment structures 10 are provided corresponding to the handles 20, and the rotation shaft 22 is connected between the rotation shaft portions 21 of the two handles 20. In this embodiment, by symmetrically opening the handle installation holes 31 on both sides of the fan body 30, the positions of the two handles 20 are symmetrical, so that the entire door and window have symmetry and balance. Since two handles 20 are provided, the rotation shaft 22 is connected between the rotation shaft portions 21 of the two handles 20 through the eccentric alignment structure 10, so that the handle 20 can adjust the axis coincidence from both sides of the fan body 30 during installation, thereby improving the assembly accuracy.

[0051] Further, such as Fig.11 As shown, the inner sleeve 11 further includes a first rib 115 disposed along the outer circumference of one end of the inner sleeve body 111, and the first rib 115 is located at the circumference of the second inner hole 122. In this embodiment, by providing the first rib 115, the inner sleeve body 111 will not fall from the second inner hole 122 into the interior of the fan body, and the inner sleeve body 111 can be accurately positioned on the outer sleeve body 121, thereby enhancing the overall stability of the door and window locking structure.

[0052] Further, such as Fig.12 As shown, a step portion 1221 is provided at the periphery of one end of the second inner hole 122, and the first rib 115 is located on the step portion 1221. In this embodiment, the step portion 1221 is provided at the periphery of one end of the second inner hole 122 opened by the outer sleeve body 121. Specifically, the step portion 1221 is annular as a whole. In terms of the overall structure, a countersunk hole is designed at the periphery of one end of the second inner hole 122, thereby forming an annular step portion 1221. When the inner sleeve body 111 is provided in the second inner hole 122, the first rib 115 is located just on the step portion 1221. The provision of the step portion 1221 allows the inner sleeve 11 and the outer sleeve 12 to be in the same plane, and at the same time, the inner sleeve 11 can be more firmly fixed inside the outer sleeve 12, and at the same time, it is helpful to better adjust the radial relative position of the inner sleeve 11 and the outer sleeve 12 during the installation process of the handle 20, improve the installation accuracy of the handle 20, and further improve the stability of the door and window locking structure. It is worth noting that the step portion 1221 may not be set on the circumference of one end of the second inner hole 122, and the inner sleeve body 111 can also be installed in the second inner hole 122 to achieve mutual cooperation between the inner sleeve body 111 and the second inner hole 122, so that the radial relative positions of the inner and outer sleeves 12 can be adjusted.

[0053] Further, such as Fig.11As shown, the outer sleeve 12 also includes a second rib 125 arranged along the outer circumference of one end of the outer sleeve body 121, and the second rib 125 is located at the circumference of the handle mounting hole 31 and outside the fan body 30. In this embodiment, the second rib 125 is arranged so that the outer sleeve body 121 will not fall into the fan body from the handle mounting hole 31, and the second rib is just connected to the circumference of the handle mounting hole 31 and is located outside the fan body 30.

[0054] Further, such as Fig.13 As shown, the third axis 123 is coaxially arranged with the central axis of the handle mounting hole 31, and the central axis of the handle mounting hole 31 is named the fifth axis 311. In this embodiment, the dimensions of the outer sleeve body 121 and the handle mounting hole 31 need to match so that the outer sleeve body 121 can be stably installed in the handle mounting hole 31, so that the third axis 123 and the fifth axis 311 are coaxially arranged, which is convenient for adjusting the coaxiality of the handle and the lock body.

[0055] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part description. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

[0056] It should also be noted that, in this specification, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive.

[0057] Inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the elements defined by the sentence "including a..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. An eccentric alignment structure, characterized in that: include: An inner sleeve, the inner sleeve comprising an inner sleeve body, the inner sleeve body being provided with a first inner hole in the axial direction, and an outer ring of the inner sleeve body being eccentrically arranged with respect to a central axis of the first inner hole; An outer sleeve, the outer sleeve comprising an outer sleeve body, the outer sleeve body being provided with a second inner hole in the axial direction, and an outer ring of the outer sleeve body being eccentrically arranged with respect to a central axis of the second inner hole; The inner sleeve body is disposed in the second inner hole.

2. The eccentric alignment structure according to claim 1, characterized in that: The outer ring of the inner sleeve body is parallel to the central axis of the first inner hole; the outer ring of the outer sleeve body is parallel to the central axis of the second inner hole.

3. The eccentric alignment structure according to claim 2, characterized in that: The outer ring of the inner sleeve body is coaxially arranged with the central axis of the second inner hole.

4. The eccentric alignment structure according to claim 1, characterized in that: A first opening is opened on one side of the inner sleeve body along the longitudinal section, and a second opening is opened on one side of the outer sleeve body along the longitudinal section.

5. A handle, characterized in that: It comprises the eccentric alignment structure as described in any one of claims 1 to 4, wherein a rotating shaft portion is arranged at one end of the handle, the rotating shaft portion is connected to a rotating shaft, and the rotating shaft sleeve is arranged in the first inner hole.

6. A door and window locking structure, characterized in that: include: A lock body, an eccentric alignment structure as described in any one of claims 1 to 4, and a handle as described in claim 5, wherein the lock body is used to be inserted in a fan body, a handle mounting hole is provided on the fan body, the outer sleeve body is sleeved in the handle mounting hole, and the rotating shaft passes through the rotating center hole of the lock body.

7. The door and window locking structure according to claim 6, characterized in that: The lock body is inserted into a lock body hole opened at one end of the fan body, and the handle mounting hole is arranged at one side of the fan body and communicated with the lock body hole.

8. The door and window locking structure according to claim 7, characterized in that: The handles are provided with two and are respectively provided on both sides of the fan body, the eccentric alignment structures are provided with two corresponding to the handles, and the rotating shaft is connected between the rotating shaft parts of the two handles.

9. The door and window locking structure according to claim 6, characterized in that: The inner sleeve further comprises a first rib arranged along the outer circumference of one end of the inner sleeve body, and the first rib is located at the circumference of the second inner hole.

10. The door and window locking structure according to claim 9, characterized in that: A step portion is provided on the circumference of one end of the second inner hole, and the first rib is located on the step portion.

11. The door and window locking structure according to claim 6, characterized in that: The outer sleeve also includes a second rib arranged along the outer circumference of one end of the outer sleeve body, wherein the second rib is located at the circumference of the handle mounting hole and outside the fan body.

12. The door and window locking structure according to claim 6, characterized in that: The outer ring of the outer sleeve body is coaxially arranged with the central axis of the handle mounting hole.

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