Handle turnover mechanism

Abstract

The utility model discloses a handle turnover mechanism, which relates to the technical field of tool accessories, and comprises a bottom plate and a handle, an adjusting structure is arranged between the bottom plate and the handle, and the adjusting structure comprises a first lock sleeve, a second lock sleeve, a support and a first elastic piece; the first lock sleeve and the second lock sleeve in the engaged state enable the handle to be fixed relative to the bottom plate, and the first lock sleeve and the second lock sleeve in the disengaged state enable the handle to rotate relative to the bottom plate. The support in the locking position enables the first lock sleeve and the second lock sleeve to be kept in an engaged state, and the support in the unlocking position loosens the first lock sleeve or the second lock sleeve; the first elastic piece is configured to be stressed and deformed when the support is located at the locking position, and drives the first lock sleeve and the second lock sleeve to be switched from the engaged state to the disengaged state when the support moves from the locking position to the unlocking position. The problem that the use experience is poor is solved, a user can adjust the angle between the handle and the bottom plate according to the situation of the user, and the use experience of the user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tool accessories, in particular to a handle flipping mechanism. Background Art

[0002] In order to facilitate the handling or movement of machinery in daily life, a handle is usually installed on the bottom plate of the machinery. The handle provides a force point for the staff, so that the staff can drag the bottom plate by applying force to the handle, thereby achieving the handling or movement of the machinery, making the handling and movement of the machinery more convenient and labor-saving. At present, the handle is generally fixed directly on the bottom plate, so the angle between the handle and the bottom plate is fixed, but the height and habitual posture of different users are also different. Therefore, the fixed angle between the handle and the bottom plate cannot meet the needs of different users, which may easily cause the user's body to be excessively twisted or produce excessive pressure on the body when applying force to the handle, reducing the user's experience, and therefore needs to be improved. Utility Model Content

[0003] In order to overcome the disadvantage of poor user experience in the prior art, the utility model provides a handle flip mechanism, which enables the user to adjust the angle between the handle and the bottom plate according to their own situation, thereby improving the user experience.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A handle flip mechanism, comprising a base plate and a handle hinged together by a shaft rod; an adjustment structure for adjusting the inclination angle of the handle relative to the base plate is arranged between the base plate and the handle, the adjustment structure comprising a first locking sleeve, a second locking sleeve, a bracket and a first elastic member; the first locking sleeve and the second locking sleeve are both sleeved on the shaft rod, one of which is arranged on the base plate and the other is arranged on the handle, the first locking sleeve and the second locking sleeve have an engaged state and a disengaged state, the first locking sleeve and the second locking sleeve in the engaged state keep the handle fixed relative to the base plate, and the first locking sleeve in the disengaged state The second locking sleeve enables the handle to rotate relative to the base plate; the bracket is movably arranged and has a locking position and an unlocking position, the bracket in the locking position keeps the first locking sleeve and the second locking sleeve in an engaged state, and the bracket in the unlocking position releases the first locking sleeve or the second locking sleeve; the first elastic member is configured to be deformed by force when the bracket is in the locking position so that the first locking sleeve and the second locking sleeve are kept in an engaged state, and when the bracket moves from the locking position to the unlocking position, the first locking sleeve and the second locking sleeve are driven away from each other, so that the first locking sleeve and the second locking sleeve are switched from the engaged state to the disengaged state.

[0006] In the above technical solution, when the mechanism is applied, the bracket is in the locked position, the first locking sleeve and the second locking sleeve are kept in the bite state, so that the handle is fixed relative to the bottom plate, so that the user can apply force to the bottom plate by applying force to the handle, thereby realizing the handling or movement of the machine on the bottom plate. At the same time, when the fixed angle between the handle and the machine cannot meet the needs of the user, the bracket is forced to switch from the locked position to the unlocked position, the bracket releases the first locking sleeve or the second locking sleeve, and the first elastic member drives the first locking sleeve and the second locking sleeve to move away from each other, that is, the first locking sleeve and the second locking sleeve are switched from the bite state to the disengaged state, so that the handle can be rotated relative to the bottom plate, that is, the angle between the handle and the bottom plate is adjustable. When adjusted to a suitable angle, the bracket is switched from the unlocked position to the locked position, so that the first locking sleeve and the second locking sleeve are kept in the bite state again, so that the handle is fixed relative to the bottom plate, that is, the angle between the handle and the bottom plate is fixed, so that the user can apply force to the bottom plate through the handle to drag the machine on the bottom plate. The switching of the bracket position can realize the switching of the connection state between the handle and the base plate, so that the handle can rotate relative to the base plate, that is, the angle between the handle and the base plate is adjustable, and the user can adjust the angle between the handle and the base plate according to his own situation, so that the angle between the handle and the base plate is more conducive to the user's force application, reducing the risk of excessive body distortion or excessive pressure on the body when the user applies force to the handle, thereby improving the user's experience. At the same time, the mechanism can be adapted to the needs of different users, improving the practicality of the mechanism.

[0007] Preferably, the second locking sleeve is arranged between the first locking sleeve and the bracket, and the bracket is provided with a push surface inclined relative to the shaft rod, and when the bracket is switched from the locked position to the unlocked position, the push surface releases the second locking sleeve, and when the bracket is switched from the unlocked position to the locked position, the second locking sleeve is pressed against the first locking sleeve by the push surface.

[0008] In the structure, since the push surface is arranged obliquely with respect to the shaft rod, when the bracket switches from the locked position to the unlocked position, the distance between the push surface and the first locking sleeve in the axial direction of the shaft rod gradually increases, that is, the push surface on the bracket releases the second locking sleeve to enable the first locking sleeve and the second locking sleeve to switch from the engaged state to the disengaged state; when the bracket switches from the unlocked position to the locked position, the push surface and the second locking sleeve slide relatively, and the distance between the push surface and the first locking sleeve in the axial direction of the shaft rod gradually decreases. During this process, the push surface and the second locking sleeve remain in contact and apply a thrust to the second locking sleeve, thereby pushing the second locking sleeve against the first locking sleeve to enable the first locking sleeve and the second locking sleeve to switch from the disengaged state to the engaged state. That is, the push surface arranged obliquely is used to realize the driving of the bracket for state switching between the first locking sleeve and the second locking sleeve. The structure is simple and convenient, which improves the convenience of using the mechanism.

[0009] Preferably, an abutment block is provided between the second locking sleeve and the bracket, the abutment block is sleeved on the shaft rod, one end of the abutment block abuts against the second locking sleeve, and the other end abuts against the push surface, and an inclined surface parallel to the push surface is provided at one end of the abutment block close to the bracket.

[0010] In the structure, when the bracket is switched from the unlocked position to the locked position, the push surface and the inclined surface of the abutment block slide relative to each other. During this process, the end of the abutment block with the inclined surface keeps in contact with the push surface, that is, the inclined surface and the push surface keep in contact, and the push surface applies a thrust to the inclined surface, that is, a thrust is applied to the abutment block, so that the abutment block applies a thrust to the second locking sleeve, thereby making the second locking sleeve abut against the first locking sleeve, wherein the inclined surface of the abutment block and the push surface are arranged in parallel, which increases the contact area when the abutment block and the bracket cooperate, ensures the stability of the abutment between the abutment block and the bracket, reduces the risk of the abutment block detaching from the bracket and affecting the use of the mechanism during the switching process, and improves the stability of the use of the mechanism.

[0011] Preferably, the bracket is provided with a slide groove on a side facing the second locking sleeve, the bottom surface of the slide groove forms the push surface, and the abutment block is partially inserted into the slide groove.

[0012] In the structure, when the bracket switches from the unlocked position to the locked position, the abutment block is partially inserted into the slide groove. When the abutment block and the push surface slide relative to each other, the groove wall of the slide groove can limit the rotation of the abutment block, thereby ensuring that the inclined surface and the push surface remain in contact during the switching process, preventing the inclined surface from deviating from the push surface due to the rotation of the abutment block relative to the shaft rod, reducing the risk of the first locking sleeve being unable to switch back to the engaged state with the second locking sleeve due to the inclined surface deviating from the push surface, and improving the stability of the mechanism.

[0013] Preferably, two of the first locking sleeves and two of the second locking sleeves are provided and are respectively provided on opposite sides of the bracket; when the bracket is switched from a locked position to an unlocked position, the two second locking sleeves move toward each other; when the bracket is switched from an unlocked position to a locked position, the two second locking sleeves move away from each other.

[0014] In the structure, the first locking sleeve and the second locking sleeve located on the same side of the bracket are a group. The bracket switched from the locked position to the unlocked position causes the two second locking sleeves to move toward each other, so that the two groups of first locking sleeves and second locking sleeves are switched from the engaged state to the disengaged state at the same time. The bracket switched from the unlocked position to the locked position causes the two second locking sleeves to move backwards, so that the two groups of first locking sleeves and second locking sleeves can be switched from the disengaged state to the engaged state at the same time, that is, the mechanism can realize simultaneous driving of the two groups of locking sleeves without unlocking or locking them one by one, so that the mechanism can be suitable for different usage scenarios, thereby improving the practicality and convenience of use of the mechanism.

[0015] Preferably, the hinged end of the handle is located on the outside of the hinged end of the base plate, the first locking sleeve is connected to the hinged end of the handle, and the second locking sleeve is connected to the hinged end of the base plate; or, the hinged end of the handle is located on the inside of the hinged end of the base plate, the first locking sleeve is connected to the hinged end of the base plate, and the second locking sleeve is connected to the hinged end of the handle.

[0016] In the structure, when the first locking sleeve and the second locking sleeve are in a disengaged state, the first locking sleeve can be rotated relative to the second locking sleeve, so that the hinged end of the handle can be rotated relative to the hinged end of the base plate, thereby ensuring that the handle can be rotated relative to the base plate; when the first locking sleeve and the second locking sleeve are in an engaged state, the first locking sleeve remains fixed relative to the second locking sleeve, so that the hinged end of the handle remains fixed relative to the hinged end of the base plate, thereby ensuring that the handle can remain fixed relative to the base plate, thereby ensuring that the angle between the handle and the base plate is adjustable, reducing the risk of being unable to fix the angle between the handle and the base plate due to the first locking sleeve or the second locking sleeve deviating from the hinged end, and improving the stability of the mechanism.

[0017] Preferably, one of the handle and the base plate is provided with a receiving groove cooperating with the other, and the handle and the base plate can be rotated to an overlapping and retracted state.

[0018] In the structure, overlap means that when the receiving groove is opened on the handle, the bottom plate is located in the receiving groove, or when the receiving groove is opened on the bottom plate, the handle is located in the receiving groove, and the angle between the central axis of the handle and the central axis of the bottom plate is 0°, so that the handle or the bottom plate is folded into the receiving groove, and when the mechanism is stored, the handle and the bottom plate are rotated to an overlapping folded state, thereby reducing the storage space required for storing the mechanism and facilitating the storage of the mechanism.

[0019] Preferably, the adjustment structure further comprises a second elastic member acting on the bracket to keep the bracket in the locked position, and the second elastic member is deformed by force when the bracket switches from the locked position to the unlocked position.

[0020] In the structure, the second elastic member acts on the bracket to keep the bracket in the locked position. When force is applied to the bracket to switch the bracket from the locked position to the unlocked position, even if the first locking sleeve and the second locking sleeve are switched from the engaged state to the disengaged state, the second elastic member is deformed by the force and maintains a tendency to reset, so that the handle can be rotated relative to the base plate, that is, the angle between the handle and the base plate is adjustable. When the appropriate angle is adjusted and the force applied to the bracket is cancelled, the second elastic member is reset and a thrust is applied to the bracket to switch the bracket from the unlocked position to the locked position, so that the first locking sleeve and the second locking sleeve are switched from the disengaged state to the engaged state, thereby keeping the handle fixed relative to the base plate, even if the angle between the handle and the base plate is fixed, without the need to manually reset the bracket, thereby improving the convenience of using the mechanism.

[0021] Preferably, a ratchet structure is provided between the first locking sleeve and the second locking sleeve, and the ratchet structure drives the first locking sleeve to disengage from the second locking sleeve when the handle rotates toward the base plate, and the ratchet structure prevents the handle from rotating away from the base plate.

[0022] In the structure, when the base plate and the handle are kept relatively fixed, when it is necessary to apply force to the handle to drag the base plate, a force will be applied to the handle in the direction away from the base plate, and the ratchet mechanism can prevent the handle from rotating away from the base plate, so that the angle between the handle and the base plate is fixed when the base plate is dragged to move, which is convenient for the user to apply force to the base plate through the handle to drag the machinery on the base plate; and the ratchet structure drives the first locking sleeve to disengage from the second locking sleeve when the handle is rotated toward the base plate, so that the handle can be rotated toward the base plate, that is, the angle between the handle and the base plate can be quickly adjusted without applying force to the bracket, so that the angle between the handle and the base plate can be quickly adjusted while ensuring that the user can drag the base plate, the operation is simple and convenient, and the convenience of using the mechanism is improved.

[0023] Preferably, a groove is provided at one end of the first locking sleeve and / or the second locking sleeve facing each other, and the first elastic member is arranged in the groove and has two ends respectively in contact with the first locking sleeve and the second locking sleeve.

[0024] In the structure, the first elastic member is installed in the groove, that is, the first elastic member is built into the first locking sleeve or the second locking sleeve, which reduces the space required for the overall installation of the mechanism and facilitates the installation of the entire mechanism. At the same time, the first elastic member is built in, which reduces the influence of external factors on the first elastic member, that is, ensures the stability of the use of the first elastic member, thereby improving the stability of the use of the mechanism.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. The angle between the handle and the base plate is adjustable, so that the user can adjust the angle between the handle and the base plate according to their own situation, which reduces the risk of excessive body distortion or excessive pressure on the body when the user applies force to the handle, and improves the user experience;

[0027] 2. The inclined push surface is used to drive the bracket to switch between the first locking sleeve and the second locking sleeve. The structure is simple and convenient, which improves the convenience of using the mechanism.

[0028] 3. The mechanism can realize the simultaneous driving of two sets of lock sleeves without unlocking or locking them one by one, so that the mechanism can be applied to different usage situations, improving the practicality and convenience of use of the mechanism;

[0029] 4. While ensuring that the user can drag the bottom plate, the angle between the handle and the bottom plate can be quickly adjusted. The operation is simple and convenient, which improves the convenience of using the mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic diagram of the overall top view structure of the first embodiment of the present application;

[0031] Figure 2 It is a schematic diagram of the overall cross-sectional structure of Embodiment 1 of the present application;

[0032] Figure 3 It is a schematic diagram of the push surface structure of the first embodiment of the present application;

[0033] Figure 4 It is a schematic diagram of the structure of the adjustment mechanism of the first embodiment of the present application;

[0034] Figure 5 It is a schematic diagram of the ratchet structure of Example 1 of the present application.

[0035] Figure 6 It is a schematic diagram of the overall structure of the first embodiment of the present application;

[0036] Figure 7 This is a schematic diagram of the structure of a garden crushing device according to the second embodiment of the present application;

[0037] Figure 8 is a schematic diagram of the overall top view structure of the second embodiment of the present application;

[0038] Fig. 9 is a schematic diagram of the overall cross-sectional structure of the second embodiment of the present application;

[0039] Fig.10 It is a schematic diagram of the adjustment mechanism structure of Example 2 of the present application.

[0040] Explanation of the reference numerals: 1. bottom plate; 2. handle; 3. adjustment mechanism; 4. abutment block; 5. ratchet structure; 6. groove; 7. connecting frame; 8. mounting frame; 9. accommodating groove; 10. shaft; 11. pressure plate; 12. accommodating chamber; 13. operating hole; 21. first mounting groove; 31. first locking sleeve; 32. second locking sleeve; 33. bracket; 34. first elastic member; 35. second elastic member; 41. inclined surface; 51. first ratchet portion; 52. second ratchet portion; 71. second mounting groove; 81. crushing mechanism; 82. driving wheel; 311. first locking block; 321. second locking block; 331. push surface; 332. slide groove; 333. button block; 511. first ratchet block; 521. second ratchet block; 711. second locking groove; 3311. penetration groove. DETAILED DESCRIPTION

[0041] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following words indicating orientation or positional relationship such as "upper", "lower", "left", "right", "longitudinal", "lateral", "inner", "outer", "vertical", "horizontal", "top", "bottom", etc. are only based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device / element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0042] Embodiment 1:

[0043] Embodiment 1 of the present application discloses a handle flipping mechanism.

[0044] Reference Figure 1 and Figure 2 A handle flip mechanism comprises a base plate 1 and a handle 2 hinged together by a shaft 10; an adjustment structure for adjusting the inclination angle of the handle 2 relative to the base plate 1 is installed between the base plate 1 and the handle 2, and the adjustment structure comprises a first locking sleeve 31, a second locking sleeve 32, a bracket 33 and a first elastic member 34; the first locking sleeve 31 and the second locking sleeve 32 are both sleeved on the shaft 10, the second locking sleeve 32 is installed on the base plate 1, and the first locking sleeve 31 is installed on the handle 2, the first locking sleeve 31 and the second locking sleeve 32 have an engaged state and a disengaged state, the first locking sleeve 31 and the second locking sleeve 32 in the engaged state keep the handle 2 fixed relative to the base plate 1, and the first locking sleeve 31 and the second locking sleeve 32 in the disengaged state allow the handle 2 to rotate relative to the base plate 1;

[0045] Reference Figure 1 and Figure 2The bracket 33 is movable and has a locking position and an unlocking position. The locking position is higher than the unlocking position. The bracket 33 in the locking position keeps the first locking sleeve 31 and the second locking sleeve 32 in an engaged state. The bracket 33 in the unlocking position releases the first locking sleeve 31 or the second locking sleeve 32.

[0046] Reference Figure 1 and Figure 2 The first elastic member 34 is configured to be deformed by force when the bracket 33 is in the locked position so that the first locking sleeve 31 and the second locking sleeve 32 remain in the bite state, and when the bracket 33 moves from the locked position to the unlocked position, the first locking sleeve 31 and the second locking sleeve 32 are driven away from each other, so that the first locking sleeve 31 and the second locking sleeve 32 are switched from the bite state to the disengaged state.

[0047] When the mechanism is applied and used, the bracket 33 is in a locked position, and the first locking sleeve 31 and the second locking sleeve 32 remain in an engaged state, so that the handle 2 remains fixed relative to the base plate 1. Therefore, the user can apply force to the base plate 1 by applying force to the handle 2, thereby realizing the transportation or movement of the machine on the base plate 1. At the same time, when the fixed angle between the handle 2 and the base plate 1 cannot meet the needs of the user, force is applied to the bracket 33 to switch the bracket 33 from the locked position to the unlocked position, and the bracket 33 releases the first locking sleeve 31 or the second locking sleeve 32, and the first elastic member 34 drives the first locking sleeve 31 and the second locking sleeve 32 to move away from each other, that is, the first locking sleeve 31 and the second locking sleeve 32 are switched from the bite state to the disengagement state, so that the handle 2 can rotate relative to the base plate 1, that is, the angle between the handle 2 and the base plate 1 is adjustable. When adjusted to a suitable angle, the bracket 33 is switched from the unlocked position to the locked position, so that the first locking sleeve 31 and the second locking sleeve 32 are kept in the bite state again, so that the handle 2 is fixed relative to the base plate 1, that is, the angle between the handle 2 and the base plate 1 is fixed, so that the user can apply force to the base plate 1 through the handle 2 to drag the machine on the base plate 1. The switching of the position of the bracket 33 can realize the switching of the connection state between the handle 2 and the base plate 1, so that the handle 2 can rotate relative to the base plate 1, that is, the angle between the handle 2 and the base plate 1 is adjustable, and the user can adjust the angle between the handle 2 and the base plate 1 according to his own situation, so that the angle between the handle 2 and the base plate 1 is more conducive to the user's force application, reducing the risk of excessive body distortion or excessive pressure on the body when the user applies force to the handle 2, thereby improving the user's experience. At the same time, the mechanism can be adapted to the needs of different users, improving the practicality of the mechanism.

[0048] Reference Figure 1 and Figure 2, with the extension direction of the central axis of the shaft rod 10 as the extension direction of the X-axis, the height direction of the bracket 33 as the extension direction of the Z-axis, and the extension direction perpendicular to the X-axis and Z-axis as the extension direction of the Y-axis, a coordinate system is established using the X-axis, Y-axis, and Z-axis.

[0049] Reference Figure 1 and Figure 2 The bracket 33 is slidably connected to the shaft 10 and can slide along its own height direction, that is, it can slide in the extension direction of the Z axis;

[0050] In order to facilitate the switching of the bracket 33 between the locked position and the unlocked position, in this embodiment, the adjustment structure also includes a second elastic member 35 acting on the bracket 33 to keep the bracket 33 in the locked position. The second elastic member 35 is deformed by force when the bracket 33 switches from the locked position to the unlocked position. The base plate 1 is fixedly connected to the pressure plate 11. The second elastic member 35 adopts a conventional compression spring. One end of the second elastic member 35 is fixedly connected to the bracket 33, and the other end is fixedly connected to the pressure plate 11. The second elastic member 35 acts on the bracket 33 to keep the bracket 33 in the locked position. When a force is applied to the bracket 33 to switch the bracket 33 from the locked position to the unlocked position, even if the first locking sleeve 31 and the second locking sleeve 32 are switched from the engaged state to the disengaged state, the second elastic member 35 is elastically deformed by the force, and the second elastic member 35 is compressed and maintains a tendency to reset, so that the handle 2 can rotate relative to the base plate 1, that is, the angle between the handle 2 and the base plate 1 is adjustable. When the angle is adjusted to a suitable angle, the force applied to the bracket 33 is cancelled, and the second elastic member 35 is reset. The second elastic member 35 is extended and applies a thrust to the bracket 33, so that the bracket 33 is switched from the unlocked position to the locked position, so that the first locking sleeve 31 and the second locking sleeve 32 are switched from the disengaged state to the engaged state, thereby keeping the handle 2 fixed relative to the base plate 1, even if the angle between the handle 2 and the base plate 1 is fixed, and there is no need to manually reset the bracket 33, thereby improving the convenience of using the mechanism.

[0051] Reference Figure 1 and Figure 2 In this embodiment, a groove 6 is provided at one end of the first locking sleeve 31 and the second locking sleeve 32 facing each other, and a first elastic member 34 is installed in the groove 6 and its two ends respectively contact the first locking sleeve 31 and the second locking sleeve 32. The first elastic member 34 adopts a conventional compression spring, and its two ends are respectively fixedly connected to the groove wall of the corresponding groove 6. The first elastic member 34 is installed in the groove 6, that is, the first elastic member 34 is built into the first locking sleeve 31 or the second locking sleeve 32, which reduces the space required for the overall installation of the mechanism and facilitates the installation of the overall mechanism. At the same time, the first elastic member 34 is built in, which reduces the influence of external factors on the first elastic member 34, that is, the stability of the use of the first elastic member 34 is ensured, thereby improving the stability of the use of the mechanism.

[0052] In another embodiment, a groove 6 may be provided at one end of the first locking sleeve 31 close to the second locking sleeve 32, one end of the first elastic member 34 may be fixedly connected to the groove wall of the groove 6, and the other end may be fixedly connected to the end of the second locking sleeve 32 close to the first locking sleeve 31; or a groove 6 may be provided at one end of the second locking sleeve 32 close to the first locking sleeve 31, one end of the first elastic member 34 may be fixedly connected to the groove wall of the groove 6, and the other end may be fixedly connected to the end of the first locking sleeve 31 close to the second locking sleeve 32.

[0053] Reference Figure 2 and Figure 3 In this embodiment, the second locking sleeve 32 is located between the first locking sleeve 31 and the bracket 33. A push surface 331 is provided on the side of the bracket 33 close to the second locking sleeve 32, which is inclined relative to the shaft rod 10. When the bracket 33 is switched from the locked position to the unlocked position, the distance between the push surface 331 and the first locking sleeve 31 in the axial direction of the shaft rod 10 gradually increases, so that the push surface 331 on the bracket 33 releases the second locking sleeve 32 to switch the first locking sleeve 31 and the second locking sleeve 32 from the engaged state to the disengaged state; when the bracket 33 is switched from the unlocked position to the locked position, the push surface 331 and the first locking sleeve 31 are The second locking sleeve 32 undergoes relative sliding, and the distance between the push surface 331 and the first locking sleeve 31 in the axial direction of the shaft rod 10 gradually decreases. During this process, the push surface 331 maintains contact with the second locking sleeve 32 and applies a thrust to the second locking sleeve 32, thereby pressing the second locking sleeve 32 against the first locking sleeve 31 to switch the first locking sleeve 31 and the second locking sleeve 32 from a disengaged state to an engaged state. That is, the inclined push surface 331 is used to drive the bracket 33 to switch the state between the first locking sleeve 31 and the second locking sleeve 32. The structure is simple and convenient, which improves the convenience of using the mechanism.

[0054] Reference Figure 3 and Figure 4In order to ensure the stability of the abutment between the second locking sleeve 32 and the bracket 33, in this embodiment, an abutment block 4 is installed between the second locking sleeve 32 and the bracket 33, and the abutment block 4 is sleeved on the shaft rod 10. One end of the abutment block 4 abuts on the second locking sleeve 32 and the other end abuts on the push surface 331. An end of the abutment block 4 close to the bracket 33 is provided with an inclined surface 41 arranged parallel to the push surface 331. When the bracket 33 switches from the unlocking position to the locking position, the push surface 331 and the inclined surface 41 of the abutment block 4 will slide relative to each other. During this process, one end of the abutment block 4 with the inclined surface 41 maintains abutment with the push surface 331. Since the inclined surface 41 and the push surface 331 are arranged in parallel, the inclined surface 41 and the push surface 331 are kept in contact during this process, so that the push surface 331 is against the inclined surface 41 applies a thrust along the central axis of the shaft rod 10, that is, applies a thrust along the central axis of the shaft rod 10 to the abutment block 4, so that the abutment block 4 applies a thrust along the central axis of the shaft rod 10 to the second locking sleeve 32, so that the second locking sleeve 32 abuts against the first locking sleeve 31, thereby realizing the switching of the first locking sleeve 31 and the second locking sleeve 32 from the disengaged state to the engaged state, wherein the inclined surface 41 of the abutment block 4 is arranged in parallel with the push surface 331 to increase the contact area when the abutment block 4 cooperates with the bracket 33, ensures the stability of the abutment between the abutment block 4 and the bracket 33, that is, ensures the stability of the abutment between the second locking sleeve 32 and the bracket 33, reduces the risk of the abutment block 4 being separated from the bracket 33 during the switching process and affecting the use of the mechanism, and improves the stability of the use of the mechanism.

[0055] Furthermore, in this embodiment, the bracket 33 is provided with a slide groove 332 on the side facing the second locking sleeve 32, and the bottom surface of the slide groove 332 forms a push surface 331, and the abutting block 4 is partially inserted into the slide groove 332. When the abutting block 4 and the push surface 331 slide relative to each other, the groove wall of the slide groove 332 can limit the rotation of the abutting block 4, thereby ensuring that the inclined surface 41 and the push surface 331 remain in contact during the switching process, preventing the inclined surface 41 from deviating from the push surface 331 due to the rotation of the abutting block 4 relative to the shaft 10, reducing the risk that the first locking sleeve 31 cannot switch back to the bite state with the second locking sleeve 32 due to the inclined surface 41 deviating from the push surface 331, and improving the stability of the mechanism.

[0056] In this embodiment, the bottom plate 1 is provided with a receiving cavity 12, and the shaft 10, the second locking sleeve 32 and the bracket 33 are all installed in the receiving cavity 12. The bottom plate 1 is provided with an operating hole 13 corresponding to the bracket 33 and connected to the receiving cavity 12, and the operating hole 13 is convenient for the user to apply force to the bracket 33 to adjust the position of the bracket 33.

[0057] Furthermore, a button block 333 is fixedly connected to one side of the bracket 33 close to the operating hole 13, so that the user can apply force to the bracket 33 by applying force to the button block 333. The button block 333 is located outside the accommodating cavity 12, thereby facilitating the user to apply force to the bracket 33 to adjust the position of the bracket 33.

[0058] Reference Figure 2 and Figure 4 In this embodiment, a first mounting groove 21 is provided at the hinged end of the handle 2, and a first locking sleeve 31 is installed in the first mounting groove 21. First locking blocks 311 are fixedly connected to opposite sides of the circumferential outer wall of the first locking sleeve 31, and first locking grooves that are plugged and matched with the corresponding first locking blocks 311 are provided on the groove walls on both sides of the first mounting groove 21. The cavity wall of the accommodating cavity 12 is fixedly connected to a connecting frame 7 corresponding to the second locking sleeve 32, and the connecting frame 7 is formed with a second installation groove 71 that slidably cooperates with the second locking sleeve 32, and the second locking blocks 321 are fixedly connected to the opposite sides of the circumferential outer wall of the second locking sleeve 32, and the groove walls on both sides of the second installation groove 71 are formed with second locking grooves 711 that slidably cooperate with the corresponding second locking blocks 321, and the groove wall of the first locking groove limits the rotation of the first locking block 311, and the second locking groove 711 can limit the rotation of the second locking sleeve 32 while ensuring that the second locking sleeve 32 can slide relative to the shaft rod 10, so that the first locking sleeve 31 will not rotate relative to the handle 2, and the second locking sleeve 32 will not rotate relative to the base plate 1, so that the handle 2 is fixed relative to the base plate 1 when the first locking sleeve 31 and the second locking sleeve 32 are in the bite state, reducing the risk of failing to fix the angle between the handle 2 and the base plate 1 when the first locking sleeve 31 and the second locking sleeve 32 are in the bite state, thereby improving the stability of the mechanism.

[0059] Reference Figure 4 , Figure 5 and Figure 6In this embodiment, a ratchet structure 5 is installed between the first locking sleeve 31 and the second locking sleeve 32. The ratchet structure 5 includes a first ratchet portion 51 fixedly connected to the end surface of the first locking sleeve 31, and a second ratchet portion 52 fixedly connected to the end surface of the second locking sleeve 32 and meshing with the first ratchet portion 51. The first ratchet portion 51 includes a plurality of first ratchet blocks 511 uniformly arranged along the circumferential direction of the first locking sleeve 31, and the second ratchet portion 52 includes a plurality of second ratchet blocks 521 uniformly arranged along the circumferential direction of the second locking sleeve 32. When a force is applied to the handle 2 to drag the base plate 1, a force in the direction back to the base plate 1 will be applied to the handle 2, even if the handle 2 has a relative position to the base plate. 1, the first ratchet block 511 applies force to the second ratchet block 521. Since the force application surface of the first ratchet block 511 on the second ratchet block 521 is the plane on the first ratchet block 511 and the second ratchet block 521 parallel to the extension direction of the central axis of the shaft 10, no thrust is generated on the second ratchet block 521 along the central axis of the shaft 10, that is, the second locking sleeve 32 will not slide relative to the shaft 10, and the second locking sleeve 32 will remain in a bite state with the first locking sleeve 31, thereby limiting the rotation of the handle 2, that is, preventing the handle 2 from rotating away from the bottom plate 1, so that the angle between the handle 2 and the bottom plate 1 is fixed when the bottom plate 1 is dragged to move;When force is applied to the handle 2 to rotate the handle 2 toward the base plate 1, even if the handle 2 has a tendency to rotate counterclockwise relative to the base plate 1, the first ratchet block 511 applies force to the second ratchet block 521. Since the force application surface of the first ratchet block 511 on the second ratchet block 521 is the inclined surface on the first ratchet block 511 and the second ratchet block 521, the first ratchet block 511 will generate a thrust on the second ratchet block 521 along the central axis of the shaft rod 10, thereby causing the first locking sleeve 31 to apply a thrust along the central axis of the shaft rod 10 to the second locking sleeve 32, so that the second locking sleeve 32 pushes the abutment block 4 to slide in the direction close to the bracket 33, and the inclined surface 41 on the abutment block 4 applies pressure along the negative direction of the Z axis to the push surface 331 on the bracket 33, thereby switching the bracket 33 from the locked position to the unlocked position, that is, causing the first locking sleeve 31 to disengage from the second locking sleeve 32, even if the first locking sleeve 3 1 and the second locking sleeve 32 switch from the engaged state to the disengaged state. At this time, the second elastic member 35 is elastically deformed by the force. The second elastic member 35 is compressed and maintains the tendency to reset, so that the handle 2 can be rotated toward the base plate 1, so that the angle between the handle 2 and the base plate 1 can be adjusted. When the angle is adjusted to a suitable angle, the force applied to the handle 2 is canceled, the second elastic member 35 is reset, the second elastic member 35 is extended and a thrust is applied to the bracket 33, so that the bracket 33 switches from the unlocked position to the locked position, so that the first locking sleeve 31 and the second locking sleeve 32 switch from the disengaged state to the engaged state, so that the handle 2 remains fixed relative to the base plate 1, even if the angle between the handle 2 and the base plate 1 is fixed, that is, the angle between the handle 2 and the base plate 1 can be quickly adjusted by rotating the handle 2 without applying force to the bracket 33. The operation is simple and convenient, which improves the convenience of using the mechanism. ;

[0060] As an alternative to this embodiment, the first locking sleeve 31 is installed on the base plate 1 , and the second locking sleeve 32 is installed on the handle 2 .

[0061] Embodiment 2:

[0062] Based on Example 1:

[0063] Reference Figure 7 and Figure 8 This embodiment is described by taking a garden crushing device as an example:

[0064] The garden pulverizing device comprises a mounting frame 8, a pulverizing mechanism 81 mounted on the mounting frame 8, and a driving wheel 82, with a portion of the mounting frame 8 serving as a bottom plate 1. The hinged end of the handle 2 is located outside the hinged end of the bottom plate 1, the first locking sleeve 31 is connected to the hinged end of the handle 2, and the second locking sleeve 32 is connected to the hinged end of the bottom plate 1; other structures of the garden pulverizing device refer to the prior art and will not be described in detail herein.

[0065] Reference Fig. 9 and Fig.10The first locking sleeve 31 and the second locking sleeve 32 are each provided with two and are respectively located on two opposite sides of the bracket 33, and the bracket 33 is provided with a push surface 331 on both opposite sides, and the distance between the two push surfaces 331 decreases along the positive and negative directions of the Z axis. The push surface 331 is provided with a penetration groove 3311, and the shaft rod 10 is penetrated in the penetration groove 3311, and the shaft rod 10 can slide relative to the penetration groove 3311, so that the bracket 33 can slide relative to the shaft rod 10.

[0066] The first locking sleeve 31 and the second locking sleeve 32 located on the same side of the bracket 33 are a group of locking sleeves. When a force is applied to the bracket 33 to switch the bracket 33 from the locked position to the unlocked position, the second elastic member 35 is elastically deformed by the force during this process. The second elastic member 35 is compressed and maintains a tendency to reset, and the distance between the two push surfaces 331 and the corresponding first locking sleeve 31 in the direction of the central axis of the shaft 10 gradually increases, so that the push surface 331 on the bracket 33 releases the corresponding second locking sleeve 32, and the first elastic member 34 resets and applies a thrust to the corresponding second locking sleeve 32 in the direction close to the bracket 33, so that the two second locking sleeves 32 move toward each other, so that the two groups of locking sleeves are switched from the biting state to the disengaged state at the same time, so that the angle between the handle 2 and the base plate 1 is adjustable at this time; when adjusted to a suitable angle, cancel For the force applied to the bracket 33, the second elastic member 35 is reset, the second elastic member 35 is extended and applies a thrust to the bracket 33, so that the bracket 33 is switched from the unlocked position to the locked position. In this process, the distance between the two push surfaces 331 and the corresponding first lock sleeve 31 in the direction of the central axis of the shaft 10 is gradually reduced, and the push surface 331 applies a thrust along the central axis of the shaft 10 to the abutment block 4, so that the abutment block 4 pushes the second locking groove 711 to slide in the direction close to the corresponding first lock sleeve 31, that is, the two second lock sleeves 32 move back to back, so that the two sets of lock sleeves are switched from the disengaged state to the engaged state at the same time, that is, the angle between the handle 2 and the bottom plate 1 is fixed at this time, and then the handle 2 is applied with a force to pull the mounting frame, so that the driving wheel 82 is rotated, so that the garden crushing device can be carried or moved. The mechanism can realize the simultaneous driving of the two sets of lock sleeves at the same time, without unlocking or locking one by one, so that the mechanism can be applied to different usage conditions, improving the practicality and convenience of the mechanism. At the same time, the handle 2 and the base plate 1 are connected at both ends, which improves the connection strength between the handle 2 and the base plate 1, reduces the risk of separation of the handle 2 and the base plate 1 during use, and improves the stability of the mechanism.

[0067] In another embodiment, the base plate 1 is fixedly connected to the mounting frame 8 .

[0068] In order to save storage space for the entire mechanism, the handle 2 is provided with a receiving groove 9 that cooperates with the bottom plate 1, and the handle 2 and the bottom plate 1 can be rotated to a retracted state of overlap. "Overlap" in this embodiment means that the bottom plate 1 is located in the receiving groove 9 of the handle 2 and the angle between the central axis of the handle 2 and the central axis of the bottom plate 1 is 0°, that is, the angle between the handle 2 and the bottom plate 1 is 0°, so that the handle 2 or the bottom plate 1 is retracted into the receiving groove 9. When the mechanism is stored, the handle 2 and the bottom plate 1 are rotated to a retracted state of overlap, thereby reducing the storage space required for storing the mechanism and facilitating the storage of the mechanism.

[0069] In another embodiment, the receiving groove 9 is provided on the base plate 1 , and the handle 2 is located in the receiving groove 9 of the base plate 1 in the overlapped and folded state.

[0070] As an alternative to this embodiment, the hinged end of the handle 2 is located inside the hinged end of the base plate 1 , the first locking sleeve 31 is connected to the hinged end of the base plate 1 , and the second locking sleeve 32 is connected to the hinged end of the handle 2 .

[0071] In addition to the above preferred embodiments, the present invention has other implementation modes. Those skilled in the art can make various changes and modifications based on the present invention. As long as they do not deviate from the spirit of the present invention, they should all fall within the scope defined in the claims of the present invention.

Claims

1. A handle flip mechanism, comprising a base plate and a handle hinged together by a shaft; It is characterized in that An adjustment structure for adjusting the inclination angle of the handle relative to the bottom plate is provided between the bottom plate and the handle, and the adjustment structure comprises a first locking sleeve, a second locking sleeve, a bracket and a first elastic member; The first locking sleeve and the second locking sleeve are both sleeved on the shaft, and one is arranged on the bottom plate, and the other is arranged on the handle. The first locking sleeve and the second locking sleeve have an engaged state and a disengaged state. The first locking sleeve and the second locking sleeve in the engaged state keep the handle fixed relative to the bottom plate, and the first locking sleeve and the second locking sleeve in the disengaged state allow the handle to rotate relative to the bottom plate. The bracket is movably arranged and has a locking position and an unlocking position. The bracket in the locking position keeps the first locking sleeve and the second locking sleeve in an engaged state, and the bracket in the unlocking position releases the first locking sleeve or the second locking sleeve; The first elastic member is configured to be deformed by force when the bracket is in a locked position so that the first locking sleeve and the second locking sleeve remain in an engaged state, and to drive the first locking sleeve and the second locking sleeve to move away from each other when the bracket moves from the locked position to the unlocked position, so that the first locking sleeve and the second locking sleeve are switched from the engaged state to the disengaged state.

2. A handle flip mechanism according to claim 1, characterized in that: The second locking sleeve is arranged between the first locking sleeve and the bracket, and the bracket is provided with a push surface inclined relative to the shaft rod. When the bracket switches from the locking position to the unlocking position, the push surface releases the second locking sleeve, and when the bracket switches from the unlocking position to the locking position, the second locking sleeve is pressed against the first locking sleeve through the push surface.

3. A handle flip mechanism according to claim 2, characterized in that: An abutment block is arranged between the second locking sleeve and the bracket, and the abutment block is sleeved on the shaft rod. One end of the abutment block abuts against the second locking sleeve, and the other end abuts against the push surface. An inclined surface parallel to the push surface is arranged at one end of the abutment block close to the bracket.

4. A handle flip mechanism according to claim 3, characterized in that: The bracket is provided with a slide groove on a side facing the second locking sleeve, the bottom surface of the slide groove forms the push surface, and the abutment block is partially inserted into the slide groove.

5. The handle flip mechanism according to claim 2, characterized in that: The first locking sleeve and the second locking sleeve are each provided with two and are respectively arranged on opposite sides of the bracket. When the bracket is switched from the locking position to the unlocking position, the two second locking sleeves move toward each other, and when the bracket is switched from the unlocking position to the locking position, the two second locking sleeves move away from each other.

6. A handle flip mechanism according to claim 5, characterized in that: The hinged end of the handle is located on the outside of the hinged end of the base plate, the first locking sleeve is connected to the hinged end of the handle, and the second locking sleeve is connected to the hinged end of the base plate; or, the hinged end of the handle is located on the inside of the hinged end of the base plate, the first locking sleeve is connected to the hinged end of the base plate, and the second locking sleeve is connected to the hinged end of the handle.

7. A handle flipping mechanism according to claim 6, characterized in that: One of the handle and the bottom plate is provided with a receiving groove matched with the other, and the handle and the bottom plate can be rotated to an overlapping and folded state.

8. The handle flip mechanism according to claim 1, characterized in that: The adjustment structure further comprises a second elastic member acting on the bracket to keep the bracket in a locked position, and the second elastic member is deformed by force when the bracket switches from the locked position to the unlocked position.

9. The handle flip mechanism according to claim 1, characterized in that: A ratchet structure is provided between the first locking sleeve and the second locking sleeve, and the ratchet structure drives the first locking sleeve to disengage from the second locking sleeve when the handle rotates toward the bottom plate, and the ratchet structure prevents the handle from rotating away from the bottom plate.

10. The handle flip mechanism according to claim 1, characterized in that: A groove is provided at one end of the first locking sleeve and / or the second locking sleeve facing each other. The first elastic member is arranged in the groove and has two ends respectively in contact with the first locking sleeve and the second locking sleeve.

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