Pulley mechanism and push-pull device

Abstract

The embodiment of the utility model discloses a pulley mechanism and a push-pull device, and relates to but is not limited to a push-pull structure technology. The pulley mechanism comprises a movable frame, a pulley, a connecting frame and a driving piece. Wherein the connecting frame is arranged on the push-pull main body; the pulley is connected with the connecting frame through the movable frame and can be exposed out of the connecting frame, so that the push-pull main body can move in the first direction through the pulley; the driving piece can drive the movable frame to slide relative to the connecting frame in the second direction so as to change the radial size of the pulley exposed out of the connecting frame, so that the position between the push-pull body and the supporting structure of the pulley can be adjusted, the situation that installation and movement of the push-pull body are interfered by the supporting structure is avoided, installation of the push-pull body is more convenient, push-pull is smoother, and the service life of the push-pull body is prolonged. And user experience is improved.

Description

Technical Field

[0001] The present disclosure relates to but is not limited to push-pull structure technology, and in particular to a pulley mechanism and a push-pull device. Background Art

[0002] At present, people use a large number of sliding bodies provided with pulleys in environments such as kitchens and bathrooms, such as sliding cabinet doors, sliding windows, shower room doors, etc., to save effort in the process of driving the above-mentioned sliding bodies.

[0003] Since the position of the pulley cannot be adjusted, it is easy for the push-pull body to be difficult to install and push and pull not smoothly due to factors such as manufacturing error, installation error or poor installation. Utility Model Content

[0004] The present invention provides a pulley mechanism and a push-pull device, aiming to solve the technical problems of difficult installation and unsmooth pushing and pulling of the existing push-pull main body.

[0005] The present disclosure provides a pulley mechanism, comprising:

[0006] Activity rack;

[0007] A pulley, arranged on the movable frame;

[0008] A connecting frame is configured to be connected to the push-pull body, the movable frame is slidably connected to the connecting frame, and the pulley is exposed from the connecting frame, so that the push-pull body can move along the first direction through the pulley; and

[0009] A driving member connected between the movable frame and the connecting frame, and configured to drive the movable frame to slide relative to the connecting frame along a second direction so as to change a radial dimension of the pulley exposed from the connecting frame;

[0010] Wherein, the second direction is inclined relative to the first direction.

[0011] In some embodiments of the pulley mechanism, the movable frame is provided with a first connecting portion, the connecting frame is provided with a second connecting portion, one of the first connecting portion and the second connecting portion has a slide groove, the other of the first connecting portion and the second connecting portion is a sliding column, the slide groove extends along the second direction, and the sliding column is partially accommodated in the slide groove and can slide along the slide groove.

[0012] In some embodiments of the pulley mechanism, the driving member is fixed in relative position to the connecting frame and is rotationally connected, and the driving member can rotate relative to the connecting frame around the first direction;

[0013] The driving member is provided with a first threaded portion;

[0014] The pulley mechanism further comprises a transmission member, wherein the transmission member is provided with a second threaded portion meshing with the first threaded portion;

[0015] During the rotation of the driving member relative to the connecting frame, the transmission member can move relative to the driving member along the first direction through the meshing cooperation between the first threaded portion and the second threaded portion, so as to drive the movable frame to slide relative to the connecting frame along the second direction, and the movable frame can move relative to the transmission member along the third direction;

[0016] Wherein, the third direction is perpendicular to the first direction.

[0017] In some embodiments of the pulley mechanism, the pulley mechanism further includes a positioning member disposed on the connecting frame;

[0018] The circumferential outer wall of the driving member is provided with an annular groove surrounding the first direction, and the positioning member is partially received in the annular groove.

[0019] In some embodiments of the pulley mechanism, the movable frame is provided with a guide groove, the guide groove extends along the third direction, and the transmission member is partially accommodated in the guide groove.

[0020] In some embodiments of the pulley mechanism, the pulley mechanism further includes an anti-slip component, which is disposed on the movable frame and exposed on the connecting frame, and the anti-slip component is configured to prevent the pulley from detaching from the slide rail.

[0021] In some embodiments of the pulley mechanism, the anti-dropping member includes a connecting wall and two limiting walls, the connecting wall is arranged on the movable frame, and the two limiting walls are arranged at intervals from the connecting wall and are located on both sides of the slide rail;

[0022] The connecting wall is provided with a clamping portion, and the anti-dropping member is configured to be detachably connected to the movable frame through the clamping portion from the outside of the pulley exposed side of the connecting frame, and can swing relative to the movable frame in the plane where the first direction and the second direction are located.

[0023] In some embodiments of the pulley mechanism, the pulley mechanism includes a bracket, the bracket is arranged on the movable frame, the pulley is rotatably connected to the bracket, the bracket is provided with a first positioning portion on a side facing the pulley along the axial direction of the pulley, and the pulley is provided with a second positioning portion that is positioned and matched with the first positioning portion and is rotatably connected.

[0024] The present disclosure also provides a push-pull device, comprising:

[0025] Push and pull the main body; and

[0026] As for the pulley mechanism as described above, the connecting frame of the pulley mechanism is connected to the push-pull main body.

[0027] In some embodiments of the push-pull device, the push-pull body is a shower door.

[0028] Implementing the embodiments of the present disclosure will have the following beneficial effects:

[0029] The pulley mechanism of the above scheme is applied and arranged in the push-pull device. In addition to saving effort in the process of driving the push-pull main body, it can also avoid the difficulty in installing the push-pull main body and the unsmooth pushing and pulling. Specifically, the pulley mechanism includes a movable frame, a pulley, a connecting frame and a driving member. Among them, the connecting frame is arranged on the push-pull main body; the pulley is connected to the connecting frame through the movable frame and can be exposed to the connecting frame, so that the push-pull main body can move along the first direction through the pulley; the driving member can drive the movable frame to slide relative to the connecting frame along the second direction to change the radial size of the pulley exposed to the connecting frame, so that the position between the push-pull main body and the support structure (slide rail, cabinet, ground, etc.) of the pulley can be adjusted to avoid the installation and movement of the push-pull main body being interfered by the support structure, so that the installation of the push-pull main body is more convenient, the pushing and pulling is smoother, and the user experience is improved. The second direction is inclined relative to the first direction, so that after the relative sliding of the movable frame and the connecting frame stops, the movable frame can provide support for the connecting frame along the direction of gravity (perpendicular to the first direction), thereby reducing the risk of the connecting frame sliding relative to the movable frame along the direction of gravity and avoiding the interference of the support structure again when the push-pull main body is reset.

[0030] Other features and advantages of the present disclosure will be described in the following description, and partly become apparent from the description, or be understood by implementing the present disclosure. Other advantages of the present disclosure can be realized and obtained by the schemes described in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings are used to provide an understanding of the technical solution of the present disclosure and constitute a part of the specification. Together with the embodiments of the present disclosure, they are used to explain the technical solution of the present disclosure and do not constitute a limitation on the technical solution of the present disclosure.

[0032] Figure 1 It is an axial view of a pulley mechanism in one embodiment of the present disclosure;

[0033] Figure 2 It is a front view of a pulley mechanism in one embodiment of the present disclosure;

[0034] Figure 3 for Figure 1 Schematic diagram of the exploded structure of the pulley mechanism shown;

[0035] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of the middle part A;

[0036] Figure 5 for Figure 3 The enlarged structural diagram of the middle B part;

[0037] Figure 6 for Figure 3 The enlarged structural diagram of the middle C part;

[0038] Figure 7 for Figure 1 Schematic diagram of the matching relationship between the pulley mechanism and the slide rail;

[0039] Figure 8 for Figure 1 A cross-sectional view of the pulley mechanism shown, wherein the pulley is in a first position;

[0040] Fig. 9 for Figure 8 The enlarged structural diagram of the middle D part;

[0041] Fig.10 for Figure 8 Middle EE section view;

[0042] Fig.11 for Figure 1 a cross-sectional view of the pulley mechanism shown, wherein the pulley is in a second position;

[0043] Fig.12 for Fig.11 Middle FF section view;

[0044] Fig.13 for Fig.11 Middle GG section view;

[0045] Fig.14 for Figure 1 a cross-sectional view of the pulley mechanism shown, wherein the pulley is in a third position;

[0046] Fig.15 for Fig.14 HH section view.

[0047] Description of Figure Numbers:

[0048] 10. Movable frame; 11. First connecting part; 12. First connecting plate; 13. First connecting wall; 14. Arc wall; 15. Second bending part; 16. Bracket; 161. First positioning part; 20. Pulley; 21. Rotating shaft; 22. Second positioning part; 30. Connecting frame; 31. Second connecting part; 32. Second connecting plate; 33. Second connecting wall; 34. First bending part; 40. Driving member; 50. Slide rail; 60. Threaded member; 70. Transmission member; 71. Stopping plane; 80. Positioning member; 90. Anti-slip member; 91. Connecting wall; 92. Limiting wall; 93. Clamping part; 94. Swinging shaft; 100. Slide groove; 200. Annular groove; 300. Concave groove; 400. Guide groove; 500. Avoidance space; 600. Clamping groove.

[0049] The realization of the objectives, functional features and advantages of the present disclosure will be further described in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0050] The present disclosure describes multiple embodiments, but the description is exemplary rather than restrictive, and it is apparent to those skilled in the art that there may be more embodiments and implementations within the scope of the embodiments described in the present disclosure. Although many possible feature combinations are shown in the drawings and discussed in the specific embodiments, many other combinations of the disclosed features are possible. Unless specifically limited, any feature or element of any embodiment may be used in combination with any other feature or element in any other embodiment, or may replace any other feature or element in any other embodiment.

[0051] The present disclosure includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The embodiments, features, and elements disclosed in the present disclosure may also be combined with any conventional features or elements to form a unique invention scheme defined by the claims. Any features or elements of any embodiment may also be combined with features or elements from other invention schemes to form another unique invention scheme defined by the claims. Therefore, it should be understood that any feature shown and / or discussed in the present disclosure may be implemented individually or in any appropriate combination. Therefore, except for the limitations made according to the attached claims and their equivalents, the embodiments are not subject to other limitations. In addition, various modifications and changes may be made within the scope of protection of the attached claims.

[0052] In addition, when describing representative embodiments, the specification may have presented the method and / or process as a specific sequence of steps. However, to the extent that the method or process does not rely on the specific order of the disclosed steps, the method or process should not be limited to the steps in the specific order. As will be appreciated by those of ordinary skill in the art, other orders of steps are also possible. Therefore, the specific order of the steps set forth in the specification should not be interpreted as a limitation to the claims. In addition, the claims for the method and / or process should not be limited to the steps of performing them in the order written, and those skilled in the art can easily understand that these orders can be changed and still remain within the spirit and scope of the disclosed embodiments.

[0053] At present, people use a large number of sliding bodies provided with pulleys in environments such as kitchens and bathrooms, such as sliding cabinet doors, sliding windows, shower room doors, etc., to save effort in the process of driving the above-mentioned sliding bodies.

[0054] Since the position of the pulley cannot be adjusted, it is easy for the push-pull body to be difficult to install and push and pull not smoothly due to factors such as manufacturing error, installation error or poor installation.

[0055] The present disclosure provides a pulley mechanism. Figures 1 to 3 , Figure 8 , Fig.11 and Fig.14 . The pulley mechanism includes a movable frame 10, a pulley 20, a connecting frame 30 and a driving member 40. Among them, the pulley 20 is arranged on the movable frame 10. The connecting frame 30 is arranged to be connected to the push-pull body. In this way, the push-pull body can move along the first direction on the support structure with the pulley 20. The support structure includes but is not limited to a slide rail 50, a cabinet or the ground. The pulley mechanism can be located below the push-pull body along the gravity direction, facilitating the movement of the push-pull body while providing support for the push-pull body. The pulley mechanism can be located on the side of the push-pull body, facilitating the movement of the push-pull body while hoisting the push-pull body. The connecting frame 30 and the push-pull body can be detachably connected by a screw member 60, or can be connected as a whole by welding. The push-pull body can be, but is not limited to, a cabinet door, a window or a shower door.

[0056] The movable frame 10 is slidably connected to the connecting frame 30, and the pulley 20 is exposed from the connecting frame 30 to facilitate the cooperation with the supporting structure, so that the push-pull body can move along the first direction through the pulley 20. The cooperation between the pulley 20 and the supporting structure is sliding or rolling. The driving member 40 is connected between the movable frame 10 and the connecting frame 30, and is configured to drive the movable frame 10 to slide relative to the connecting frame 30 along the second direction to change the radial dimension of the pulley 20 exposed from the connecting frame 30, that is, the relative position between the pulley 20 and the push-pull body can be adjusted along the radial direction of the pulley 20, and then the relative position between the push-pull body and the supporting structure can be adjusted. The moving path of the pulley 20 includes at least a first position, a second position and a third position. The pulley 20 is in the first position, such as Figure 8 and Fig.10 As shown, the pulley 20 is close to the push-pull body and is located at the top of the moving path. The pulley 20 is in the third position, as shown in FIG. Fig.14 and Fig.15 As shown, the pulley 20 is far away from the push-pull body and is located at the bottom of the moving path. The second position is located between the first position and the second position. Fig.11 and Fig.12 shown.

[0057] The second direction is inclined relative to the first direction. Figure 8 The second direction is parallel to Figure 8 The arrow Y in the middle points to the direction.

[0058] In summary, the implementation of the disclosed embodiment will have the following beneficial effects: the pulley mechanism of the above scheme is applied and arranged in the push-pull device, which can not only save effort in the process of driving the push-pull body, but also avoid the difficulty of installing the push-pull body and the unsmooth pushing and pulling. The pulley mechanism includes a movable frame 10, a pulley 20, a connecting frame 30 and a driving member 40. Among them, the connecting frame 30 is arranged on the push-pull body; the pulley 20 is connected to the connecting frame 30 through the movable frame 10, and can be exposed to the connecting frame 30, so that the push-pull body can move along the first direction through the pulley 20; the driving member 40 can drive the movable frame 10 to slide relative to the connecting frame 30 along the second direction to change the radial size of the pulley 20 exposed to the connecting frame 30, so that the position between the support structure (slide rail 50, cabinet, ground, etc.) of the push-pull body and the pulley 20 can be adjusted, and the installation and movement of the push-pull body can be prevented from being interfered by the support structure, so that the installation of the push-pull body is more convenient, the push-pull is smoother, and the user experience is improved. The second direction is inclined relative to the first direction, so that after the relative sliding of the movable frame 10 and the connecting frame 30 stops, the movable frame 10 can provide support for the connecting frame 30 along the gravity direction (perpendicular to the first direction), thereby reducing the risk of the connecting frame 30 sliding relative to the movable frame 10 along the gravity direction, and avoiding the interference of the support structure again when the push-pull main body is reset.

[0059] In the exemplary embodiment, please combine Figures 1 to 3 , Figure 7 , Figure 8 , Figures 10 to 12 and Fig.14 and Fig.15 , the movable frame 10 is provided with a first connecting portion 11. The connecting frame 30 is provided with a second connecting portion 31, one of the first connecting portion 11 and the second connecting portion 31 has a slide groove 100, the other of the first connecting portion 11 and the second connecting portion 31 is a sliding column, the slide groove 100 extends along the second direction, and the sliding column is partially received in the slide groove 100 and can slide along the slide groove 100. In this way, the connection surface area between the first connecting portion 11 and the second connecting portion 31 can be increased through the cooperation of the slide groove 100 and the sliding column, the connection stability can be improved, and the stability of relative sliding can be ensured.

[0060] In the disclosed embodiment, the movable frame 10 includes two first connecting plates 12 arranged at intervals and a first connecting wall 13 connected between the two first connecting plates 12, and can be enclosed to form a first installation space, and the pulley 20 is installed in the first installation space. The first connecting portion 11 is arranged on the first connecting plate 12. The first connecting portion 11 has a slide groove 100. The connecting frame 30 includes two second connecting plates 32 arranged at intervals and a second connecting wall 33 connected between the two second connecting plates 32, and can be enclosed to form a second installation space, and the movable frame 10 is installed in the second installation space. The second connecting portion 31 is arranged on the second connecting plate 32. The second connecting portion 31 is a sliding column, which is connected between the two second connecting plates 32, and can improve the overall strength of the connecting frame 30 and improve the structural stability. It can be understood that in other embodiments, the first connecting portion 11 can be a sliding column. The second connecting portion 31 has a slide groove 100.

[0061] In the exemplary embodiment, please combine Figure 3 , Figure 8 , Fig.11 and Fig.14 , the two ends of the slide groove 100 along the second direction have arc-shaped walls 14, and the sliding column has an arc surface that can fit with the arc-shaped wall 14. In this way, when the sliding column slides to the two ends of the slide groove 100 along the second direction and is stopped, the contact surface area between the first connection part 11 and the second connection part 31 can be increased, the impact and wear can be reduced, and the service life of the first connection part 11 and the second connection part 31 can be increased. In the embodiment of the present disclosure, the sliding column is cylindrical, and its outer wall is an arc surface.

[0062] In the exemplary embodiment, please combine Figures 1 to 3 , Figure 8 and Fig. 9The driving member 40 is fixed in relative position with the connecting frame 30 and is rotationally connected. The driving member 40 can rotate relative to the connecting frame 30 around a first direction, so that the driving member 40 can rotate relative to the connecting frame 30 without moving relative to the connecting frame 30, thereby ensuring the position stability between the driving member 40 and the connecting frame 30.

[0063] The driving member 40 is provided with a first threaded portion. The pulley mechanism further includes a transmission member 70, which is provided with a second threaded portion meshing with the first threaded portion.

[0064] During the rotation of the driving member 40 relative to the connecting frame 30, the transmission member 70 can move relative to the driving member 40 in the first direction through the meshing cooperation of the first threaded portion and the second threaded portion, so as to drive the movable frame 10 to slide relative to the connecting frame 30 in the second direction, and the movable frame 10 can move relative to the transmission member 70 in the third direction. The meshing cooperation of the first threaded portion and the second threaded portion can also form a self-locking function to ensure the stability of the position of the transmission member 70 relative to the driving member 40, thereby ensuring the stability of the position of the movable frame 10 relative to the connecting frame 30.

[0065] The third direction is perpendicular to the first direction. Figure 8 The arrow Z in the middle points to the direction.

[0066] In the disclosed embodiment, the transmission member 70 and the movable frame 10 are locked to each other so that as the driving member 40 rotates about the first direction, the transmission member 70 can move relative to the driving member 40 in the first direction. Since the driving member 40 is fixed relative to the connecting frame 30, the transmission member 70 can drive the movable frame 10 by moving relative to the driving member 40 in the first direction. In addition, the first connecting portion 11 and the second connecting portion 31 cooperate to enable the movable frame 10 to slide relative to the connecting frame 30 in the second direction, so as to change the radial dimension of the pulley 20 exposed from the connecting frame 30. Figure 3 As shown, the transmission member 70 has a rotation-stopping plane 71 on the circumferential outer side, which can form a rotation-stopping fit with the movable frame 10. For example, in the embodiment of the present disclosure, the transmission member 70 can be a nut, which has a rotation-stopping plane 71 on the circumferential outer side.

[0067] The first threaded portion is an external thread, and the second threaded portion is an internal thread. It can be understood that in other embodiments, the first threaded portion is an internal thread, and the second threaded portion is an external thread.

[0068] In the exemplary embodiment, please combine Figure 1 , Figure 6 and Fig. 9, the pulley mechanism also includes a positioning member 80, which is arranged on the connecting frame 30. The circumferential outer wall of the driving member 40 is provided with an annular groove 200 surrounding the first direction, and the positioning member 80 is partially accommodated in the annular groove 200. In this way, the cooperation between the positioning member 80 and the annular groove 200 can ensure that the driving member 40 can rotate relative to the connecting frame 30, and can prevent the driving member 40 from moving relative to the connecting frame 30 along the first direction, so as to ensure that the transmission member 70 can move relative to the driving member 40 along the first direction, and then can drive the movable frame 10 to move relative to the connecting frame 30 along the second direction. In the embodiment of the present disclosure, a first bending portion 34 is provided at a position of the connecting frame 30 corresponding to the annular groove 200, and a positioning member 80 is provided below the first bending portion 34. The first bending portion 34 can make the positioning member 80 abut against the driving member 40, so that the positioning member 80 is stably in the annular groove 200, and the first bending portion 34 can also cooperate with the second connecting wall 33 to limit the positioning member 80 along the first direction.

[0069] In the exemplary embodiment, please combine Figure 6 and Fig. 9 The positioning member 80 is provided with a groove wall forming a groove 300, and at least a portion of the groove wall is received in the annular groove 200 through the groove 300, and fits with the driving member 40. In this way, the volume of the positioning member 80 received in the annular groove 200 can be increased by providing the groove 300, and the connection stability between the positioning member 80 and the driving member 40 can be improved, and the positioning member 80 can be prevented from falling out of the annular groove 200 during use.

[0070] In the exemplary embodiment, please combine Figure 5 and Fig. 9 , the movable frame 10 is provided with a guide groove 400, the guide groove 400 extends along the third direction, and the transmission member 70 is partially accommodated in the guide groove 400. In this way, the stability of the movement of the transmission member 70 can be improved by setting the guide groove 400, thereby improving the transmission stability between the driving member 40 and the movable frame 10. In the embodiment of the present disclosure, a second bending portion 15 is provided on the movable frame 10, and the second bending portion 15 is bent toward the inner side of the movable frame 10, and can cooperate with the first connecting wall 13 to form the guide groove 400, and the second bending portion 15 and the first connecting wall 13 can also transmit the driving force of the transmission member 70 to the movable frame 10, so that the movable frame 10 can move relative to the connecting frame 30 along the second direction. An escape space 500 is also provided on the first connecting wall 13, and the escape space 500 extends along the third direction to ensure that after the driving member 40 and the transmission member 70 are connected, the movable frame 10 has a larger moving space, thereby ensuring that the radial dimension of the pulley 20 exposed to the connecting frame 30 has a larger adjustment range to meet different relative position requirements between the push-pull body and the supporting structure of the pulley 20 (slide rail 50, cabinet, ground, etc.).

[0071] In the exemplary embodiment, please combine Figure 1 and Figure 2 , the driving member 40 is partially exposed at one end of the connecting frame 30 along the first direction. In this way, the driving member 40 can be operated conveniently from one side of the moving direction of the push-pull body, avoiding interference of the support structure such as the slide rail 50 on the operation of the driving member 40 by external tools, and the driving member 40 is exposed at one end of the connecting frame 30 along the first direction, which can also reduce the exposed size of the user's viewing side in the use state, thereby improving the overall appearance of the push-pull device.

[0072] In the exemplary embodiment, please combine Figures 1 to 4 , Figure 7 , Figure 8 and Figures 10 to 15 The pulley mechanism further includes an anti-dropping member 90. The anti-dropping member 90 is disposed on the movable frame 10 and exposed on the connecting frame 30. The anti-dropping member 90 is configured to prevent the pulley 20 from being disengaged from the slide rail 50, so that the pulley 20 and the slide rail 50 cooperate more smoothly, ensuring safety in use during the push-pull process.

[0073] In the exemplary embodiment, please combine Figure 4 , Figure 7 , Figure 8 , Fig.10 , Fig.12 , Fig.13 and Fig.15 , the anti-slip member 90 includes a connecting wall 91 and two limiting walls 92, the connecting wall 91 is arranged on the movable frame 10, and the two limiting walls 92 are arranged at intervals on the connecting wall 91 and are located on both sides of the slide rail 50. In this way, the setting of the limiting wall 92 can reduce the risk of the anti-slip member 90 separating from the slide rail 50 when moving relative to the slide rail 50 in a direction perpendicular to the first direction, thereby ensuring that the pulley 20 can be stably located on the slide rail 50 to avoid derailment. In the disclosed embodiment, the size of the limiting wall 92 can be designed, the area of ​​the limiting wall 92 facing the slide rail 50 can be adjusted, and the contact surface area when the limiting wall 92 contacts the slide rail 50 can be increased to improve the anti-derailment effect.

[0074] In the exemplary embodiment, please combine Figure 3 , Figure 4 , Figure 7 , Figure 8 , Fig.11 , Fig.13 and Fig.14, the connecting wall 91 is provided with a clamping portion 93. The anti-dropping member 90 is arranged to be connected to the movable frame 10 through the clamping portion 93 in a detachable manner from the outside of the pulley 20 exposed on one side of the connecting frame 30, so that the disassembly and assembly of the anti-dropping member 90 can be facilitated, and the anti-dropping member 90 can be conveniently replaced and repaired to ensure the anti-derailing effect of the anti-dropping member 90. The clamping portion 93 is connected to the movable frame 10 and can also swing relative to the movable frame 10 in the plane where the first direction and the second direction are located, so that the ups and downs of the slide rail 50 can be adapted, and the automatic swing ensures that the pulley mechanism moves smoothly on the slide rail 50. In the disclosed embodiment, the movable frame 10 is provided with a swing shaft 94, and the axial direction of the swing shaft 94 is perpendicular to the plane where the first direction and the second direction are located. The clamping portion 93 can be clamped with the swing shaft 94 and can rotate and swing relative to the swing shaft 94.

[0075] The clamping part 93 has a clamping slot 600 and a guide surface 95. The swing shaft 94 can be introduced into the clamping slot 600 through the guide surface 95 and clamped with the clamping part 93. In this way, the setting of the guide surface 95 can facilitate the swing shaft 94 to quickly position with the clamping slot 600 to complete the clamping.

[0076] In the exemplary embodiment, please combine Figure 3 , Figure 4 , Figure 7 , Figure 8 , Figures 10 to 12 , Fig.14 and Fig.15 The pulley mechanism includes a bracket 16, the bracket 16 is arranged on the movable frame 10, and the pulley 20 is rotatably connected to the bracket 16. The bracket 16 is arranged on both sides of the axial direction of the pulley 20. The pulley 20 can be rotatably connected to the bracket 16 through the rotating shaft 21. The arrangement of the bracket 16 can increase the thickness of the movable frame 10, thereby increasing the connection surface area between the rotating shaft 21 and the movable frame 10, and improving the rotation stability of the pulley 20.

[0077] The bracket 16 is provided with a first positioning portion 161 on the side facing the pulley 20 along the axial direction of the pulley 20, and the pulley 20 is provided with a second positioning portion 22 that is positioned and matched with the first positioning portion 161 and is rotatably connected, so as to further ensure the position stability of the wheel change and the accuracy of the position adjustment of the pulley 20 by the driving member 40. In the embodiment of the present disclosure, the first positioning portion 161 is a raised structure. The second positioning portion 22 has a groove structure. The first positioning portion 161 and the second positioning portion 22 are coaxially arranged with the rotating shaft 21. The first positioning portion 161 being a raised structure can also increase the size of the rotating shaft 21 on the side of the bracket 16 away from the pulley 20, thereby improving the connection stability of the rotating shaft 21 and the bracket 16.

[0078] It can be understood that in other embodiments, the first positioning portion 161 has a groove structure. The second positioning portion 22 is a protrusion structure.

[0079] The embodiment of the present disclosure also provides a push-pull device using the above pulley mechanism. The push-pull device can be installed in various occasions such as kitchens and toilets in companies, schools, homes, and factories. The push-pull device includes a push-pull body and a pulley mechanism.

[0080] In the description of the present disclosure, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "relative", "four corners", "periphery", "mouth structure" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the structure referred to has a specific orientation, is constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present disclosure.

[0081] In the description of the embodiments of the present disclosure, unless otherwise clearly specified and limited, the terms "connection", "direct connection", "indirect connection", "fixed connection", "installation", and "assembly" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; the terms "installation", "connection", and "fixed connection" can be a direct connection, or an indirect connection through an intermediate medium, or can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0082] Although the embodiments disclosed in the present disclosure are as above, the contents described are only embodiments adopted for facilitating the understanding of the present disclosure and are not intended to limit the present disclosure. It should be noted that the above embodiments or embodiments are merely exemplary and not restrictive. Therefore, the present disclosure is not limited to the contents specifically shown and described herein. Various modifications, substitutions or omissions may be made to the forms and details of the implementation without departing from the scope of the present disclosure.

Claims

1. A pulley mechanism, characterized in that: include: Activity rack; A pulley, arranged on the movable frame; A connecting frame is configured to be connected to the push-pull body, the movable frame is slidably connected to the connecting frame, and the pulley is exposed from the connecting frame, so that the push-pull body can move along the first direction through the pulley; and A driving member connected between the movable frame and the connecting frame, and configured to drive the movable frame to slide relative to the connecting frame along a second direction so as to change a radial dimension of the pulley exposed from the connecting frame; Wherein, the second direction is inclined relative to the first direction.

2. The pulley mechanism according to claim 1, characterized in that: The movable frame is provided with a first connecting part, and the connecting frame is provided with a second connecting part. One of the first connecting part and the second connecting part has a slide groove, and the other of the first connecting part and the second connecting part is a sliding column. The slide groove extends along the second direction, and the sliding column is partially accommodated in the slide groove and can slide along the slide groove.

3. The pulley mechanism according to claim 1 or 2, characterized in that: The driving member is fixed in relative position with the connecting frame and is rotationally connected to the connecting frame, and the driving member can rotate relative to the connecting frame around the first direction; The driving member is provided with a first threaded portion; The pulley mechanism further comprises a transmission member, wherein the transmission member is provided with a second threaded portion meshing with the first threaded portion; During the rotation of the driving member relative to the connecting frame, the transmission member can move relative to the driving member along the first direction through the meshing cooperation between the first threaded portion and the second threaded portion, so as to drive the movable frame to slide relative to the connecting frame along the second direction, and the movable frame can move relative to the transmission member along the third direction; Wherein, the third direction is perpendicular to the first direction.

4. The pulley mechanism according to claim 3, characterized in that: The pulley mechanism further includes a positioning member, which is arranged on the connecting frame; The circumferential outer wall of the driving member is provided with an annular groove surrounding the first direction, and the positioning member is partially received in the annular groove.

5. The pulley mechanism according to claim 3, characterized in that: The movable frame is provided with a guide groove, the guide groove extends along the third direction, and the transmission member is partially accommodated in the guide groove.

6. The pulley mechanism according to claim 1 or 2, characterized in that: The pulley mechanism further comprises an anti-slipping member, which is arranged on the movable frame and exposed on the connecting frame, and the anti-slipping member is arranged to prevent the pulley from being detached from the slide rail.

7. The pulley mechanism according to claim 6, characterized in that: The anti-dropping member comprises a connecting wall and two limiting walls, wherein the connecting wall is arranged on the movable frame, and the two limiting walls are arranged at intervals from the connecting wall and are located on both sides of the slide rail; The connecting wall is provided with a clamping portion, and the anti-dropping member is configured to be detachably connected to the movable frame through the clamping portion from the outside of the pulley exposed side of the connecting frame, and can swing relative to the movable frame in the plane where the first direction and the second direction are located.

8. The pulley mechanism according to claim 1 or 2, characterized in that: The pulley mechanism includes a bracket, which is arranged on the movable frame. The pulley is rotatably connected to the bracket. The bracket is provided with a first positioning portion on one side facing the pulley along the axial direction of the pulley. The pulley is provided with a second positioning portion that is positioned and matched with the first positioning portion and is rotatably connected.

9. A push-pull device, characterized in that: include: Push and pull the main body; and The pulley mechanism according to any one of claims 1 to 8, wherein the connecting frame of the pulley mechanism is connected to the push-pull body.

10. The push-pull device according to claim 9, characterized in that: The sliding body is a shower room door.

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