Lifting mechanism and lifting equipment

Abstract

The utility model is suitable for the technical field of lifting devices, and provides a lifting mechanism and lifting equipment. The lifting mechanism comprises a mounting shell and a transmission part; the transmission part comprises a lead screw rotationally mounted on the mounting shell, and the length direction of the lead screw is parallel to the first preset direction; the lifting seat is used for moving on the mounting shell in a first preset direction; the connecting piece is arranged on the periphery of the lead screw in a sleeving mode, is in threaded connection with the lead screw and is used for moving in the first preset direction; the connecting piece is provided with a first connecting structure, the lifting seat is provided with a second connecting structure, the second connecting structure is connected with the first connecting structure, and when the acting force borne by the lifting seat is larger than the preset acting force, the second connecting structure is separated from the first connecting structure. According to the lifting mechanism, the effect of avoiding deformation or damage of the lifting base, the connecting piece and the lead screw is achieved, and the effects of guaranteeing the integrity of the lifting base, the connecting piece and the lead screw and prolonging the service life of the lifting mechanism are achieved.

Description

Technical Field

[0001] The present application belongs to the technical field of lifting devices, and more specifically, to a lifting mechanism and lifting equipment. Background Art

[0002] With the development of technology, more and more lifting equipment are using lifting mechanisms, such as lifting audio, lifting fragrance and lifting camera.

[0003] The lifting mechanism in the related technology includes a screw and a lifting seat. The lifting seat is sleeved on the outer circumference of the screw and is threadedly connected to the screw, and can drive the load component to move back and forth along the length direction of the screw. Since the lifting seat and the screw are threadedly connected, when the lifting seat is subjected to excessive external force, the lifting seat may be deformed, cracked or broken, and even the threads on the lifting seat and the threads on the screw may be damaged, resulting in the lifting seat being unable to complete the lifting operation. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a lifting mechanism and a lifting device, aiming to solve the technical problem in the prior art that the lifting seat may be deformed, cracked or broken when the external force applied to the lifting seat is too large.

[0005] To achieve the above-mentioned purpose, according to one aspect of the present application, a lifting mechanism is provided, including a mounting shell and a transmission part; the transmission part includes: a screw rod, which is rotatably mounted on the mounting shell, and the length direction of the screw rod is parallel to a first preset direction; a lifting seat, which is used to move on the mounting shell along the first preset direction; a connecting piece, which is sleeved on the outer periphery of the screw rod, the connecting piece is threadedly connected to the screw rod, and is used to move along the first preset direction; a first connecting structure is provided on the connecting piece, and a second connecting structure is provided on the lifting seat, and the second connecting structure is connected to the first connecting structure, and when the force acting on the lifting seat is greater than the preset force, the second connecting structure is disengaged from the first connecting structure.

[0006] Optionally, one of the first connecting structure and the second connecting structure is a connecting protrusion, and the other is a connecting groove, and the connecting protrusion is inserted into the connecting groove; the connecting protrusion has an active surface in contact with the groove wall of the connecting groove, and the active surface of the connecting protrusion is an arc surface; or the active surface of the connecting protrusion is an inclined plane, and there is a preset angle between the active surface of the connecting protrusion and the first preset direction, and the preset angle is an acute angle, so that the active surface of the connecting protrusion is separated from the connecting groove when the force applied to the lifting seat is greater than the preset force.

[0007] Optionally, the first connecting structure is a connecting protrusion, and the second connecting structure is a connecting groove; a receiving groove is provided on the connecting piece, and the connecting protrusion is slidably installed in the receiving groove along a second preset direction, and the second preset direction and the first preset direction form an angle with each other; an elastomer is installed in the receiving groove, and the elastomer has a first end and a second end, the first end of the elastomer contacts the groove wall of the receiving groove, and the second end of the elastomer contacts the connecting protrusion, and the elastomer is used to push the connecting protrusion to pass into the connecting groove.

[0008] Optionally, the connecting protrusion includes a protruding portion, a connecting portion and a limiting portion which are sequentially connected along a second preset direction, and the protruding portion and the limiting portion are connected via the connecting portion; an action surface of the connecting protrusion is provided on the protruding portion, and the protruding portion is inserted into the connecting groove, so as to be disengaged from the connecting groove when the force applied to the lifting seat is greater than a preset force; the accommodating groove has a limiting opening, the limiting portion is located in the accommodating groove, and the limiting opening of the accommodating groove is used to prevent the limiting portion from being disengaged from the accommodating groove.

[0009] Optionally, a first limiting groove section is provided on the limiting part, and a second limiting groove section is provided on the connecting part. The second limiting groove section is connected to the first limiting groove section and constitutes a first limiting groove; the connecting protrusion also includes a limiting column, the limiting column is installed in the first limiting groove, and the elastomer is sleeved on the outer periphery of the limiting column; a second limiting groove is provided on the groove wall of the accommodating groove, and the second end of the elastomer is installed in the second limiting groove; the accommodating groove also has an installation opening, and the connecting protrusion is installed in the accommodating groove through the installation opening of the accommodating groove, and a blocking cover for blocking the installation opening of the accommodating groove is also installed on the connecting member; the active surface of the connecting protrusion is in contact with the groove wall of the connecting groove; the active surface of the connecting protrusion is spherical.

[0010] Optionally, a limiting groove is provided on the lifting seat, the connecting piece is installed in the limiting groove, the groove wall of the limiting groove contacts the surface of the connecting piece to limit the rotation of the connecting piece in the limiting groove; the lifting mechanism also includes a guide rod, the guide rod is installed on the mounting shell along a first preset direction, the lifting seat is provided with a guide hole, and the guide rod is passed through the guide hole.

[0011] Optionally, there are multiple first connection structures, and the multiple first connection structures are arranged on the connecting member in sequence along a third preset direction, and the first preset direction and the third preset direction form an angle with each other; the number of second connection structures is the same as the number of first connection structures, and the multiple first connection structures are arranged one-to-one with the multiple second connection structures.

[0012] Optionally, the lifting mechanism also includes a driving part, which is a driving motor; the transmission part also includes a reduction gear group, which has an input gear and an output gear, the output shaft of the driving part is drivingly connected to the input gear of the reduction gear group, and the output gear of the reduction gear group is drivingly connected to the screw rod.

[0013] Optionally, a mounting groove is provided on the mounting shell, the mounting groove has a mounting opening, and the lifting seat is installed in the mounting groove through the mounting opening of the mounting groove; the lifting seat is provided with a receiving groove, and the driving part is installed in the receiving groove; the mounting shell has a mounting groove, and the reduction gear set is installed in the mounting groove.

[0014] According to another aspect of the present application, a lifting device is provided. The lifting device includes a load component and the above-mentioned lifting mechanism, and the load component is installed on a lifting seat.

[0015] The beneficial effect of the lifting mechanism provided by the present application is that, compared with the prior art, when the lifting seat in the present application needs to move along the first preset direction, the screw rod is rotated, and along with the rotation of the screw rod, the connecting piece will move along the first preset direction. Since the first connecting structure and the second connecting structure are connected, the lifting seat will also move along the first preset direction with the connecting piece; in this process, if the force applied to the lifting seat is greater than the preset force, the second connecting structure will be separated from the first connecting structure, so that the lifting seat is no longer connected to the connecting piece, so that not only the lifting seat is no longer restricted by the connecting piece, but also the force applied to the lifting seat is no longer transmitted to the connecting piece and the screw rod, which plays a role in avoiding deformation or damage of the lifting seat, the connecting piece and the screw rod, and achieving the effect of ensuring the integrity of the lifting seat, the connecting piece and the screw rod, and extending the service life of the lifting mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 A schematic diagram of the structure of the lifting mechanism provided in the embodiment of the present application;

[0018] Figure 2 A cross-sectional schematic diagram of a lifting mechanism provided in an embodiment of the present application;

[0019] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0020] Figure 4 A schematic diagram of the structure after the connector, two connecting protrusions and a blocking cover provided in an embodiment of the present application are assembled;

[0021] Figure 5 A schematic diagram of the structure of the connecting protrusion provided in an embodiment of the present application;

[0022] Figure 6 A schematic diagram of the structure of the lifting seat provided in the embodiment of the present application;

[0023] Figure 7 A schematic diagram of the structure after the installation shell and the sealing plate are assembled according to an embodiment of the present application;

[0024] Figure 8 A schematic diagram of the structure after the mounting housing and the reduction gear set provided in the embodiment of the present application are assembled and the blocking plate is hidden;

[0025] The reference numerals in the above drawings are as follows:

[0026] 100, mounting shell; 110, mounting slot; 111, mounting opening; 112, lifting opening; 120, mounting groove;

[0027] 200, transmission part; 210, screw rod;

[0028] 220, lifting seat; 221, connecting groove; 222, limiting groove; 223, containing groove;

[0029] 230, connecting piece; 231, receiving groove; 2311, limiting opening; 2312, second limiting groove; 2313, installation opening;

[0030] 240, connecting convex part; 241, protruding part; 2411, action surface; 242, connecting part; 243, limiting part; 244, limiting column; 245, first limiting groove;

[0031] 250, elastic body; 260, plugging cover;

[0032] 300, guide rod; 400, driving unit; 500, reduction gear set; 600, control unit; 700, blocking plate. DETAILED DESCRIPTION

[0033] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0034] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element. In the absence of conflict, the embodiments in this application and the features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0035] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0037] As described in the background technology, at present, with the development of science and technology, more and more lifting equipments are applied with lifting mechanisms, such as lifting audio, lifting fragrance and lifting camera. The lifting mechanism in the related technology includes a screw and a lifting seat, the lifting seat sleeve is arranged on the outer periphery of the screw and is threadedly connected with the screw, and can drive the load component to move back and forth along the length direction of the screw; because the lifting seat and the screw are threadedly connected, when the lifting seat is subjected to excessive external force, the lifting seat may be deformed, cracked or broken, and even the threads on the lifting seat and the threads on the screw may be damaged, thereby causing the lifting seat to be unable to complete the lifting operation.

[0038] Reference Figures 1 to 3 In order to solve the above problems, according to one aspect of the present application, an embodiment of the present application provides a lifting mechanism, which includes a mounting shell 100 and a transmission part 200, wherein the transmission part 200 includes a screw rod 210, a lifting seat 220 and a connecting piece 230, wherein the screw rod 210 is rotatably mounted on the mounting shell 100, and the length direction of the screw rod 210 is parallel to the first preset direction; the lifting seat 220 is used to move on the mounting shell 100 along the first preset direction; the connecting piece 230 is sleeved on the outer periphery of the screw rod 210, and the connecting piece 230 is threadedly connected to the screw rod 210 for moving along the first preset direction; a first connecting structure is provided on the connecting piece 230, and a second connecting structure is provided on the lifting seat 220, and the second connecting structure is connected to the first connecting structure, and when the force acting on the lifting seat 220 is greater than the preset force, the second connecting structure is separated from the first connecting structure.

[0039] In the embodiment of the present application, the screw rod 210 generally rotates around its own axis, and the screw rod 210 has a first end and a second end. The mounting shell 100 is provided with a first mounting hole and a second mounting hole opposite to the first mounting hole. The first end of the screw rod 210 is generally installed in the first mounting hole, and the second end of the screw rod 210 is generally installed in the second mounting hole; the connecting member 230 is provided with a connecting hole with an internal thread, and the screw rod 210 is inserted into the connecting hole. The internal thread on the connecting hole is threadedly matched with the external thread on the screw rod 210, so that the connecting member 230 moves along the first preset direction; the first connecting structure can generally be a protrusion with an arc surface. In this case, the second connecting structure is a groove for the protrusion to be inserted. In other embodiments, the first connecting structure can also be a magnetic member. In this case, the second connecting structure is a magnet that generates magnetic attraction with the magnetic member; the force applied to the lifting seat 220 is generally a pressing force applied to the lifting seat 220 during the lifting process of the lifting seat 220 or after it rises to the highest point. The value of the preset force is roughly equal to the value of the force between the first connecting structure and the second connecting structure.

[0040] When the lifting seat 220 in the present application needs to move along the first preset direction, the screw rod 210 is rotated. Along with the rotation of the screw rod 210, the connecting member 230 will move along the first preset direction. Since the first connecting structure and the second connecting structure are connected, the lifting seat 220 will also move along the first preset direction with the connecting member 230; in this process, if the force applied to the lifting seat 220 is greater than the preset force, the second connecting structure will be separated from the first connecting structure, so that the lifting seat 220 is no longer connected to the connecting member 230, so that not only the lifting seat 220 is no longer restricted by the connecting member 230, but also the force applied to the lifting seat 220 is no longer transmitted to the connecting member 230 and the screw rod 210, so as to prevent the lifting seat 220, the connecting member 230 and the screw rod 210 from being deformed or damaged, thereby ensuring the integrity of the lifting seat 220, the connecting member 230 and the screw rod 210 and extending the service life of the lifting mechanism.

[0041] Reference Figures 2 to 5 In one embodiment, one of the first connection structure and the second connection structure is a connection protrusion 240, and the other is a connection groove 221, the connection protrusion 240 is arranged in the connection groove 221; the connection protrusion 240 has an action surface 2411 in contact with the groove wall of the connection groove 221, and the action surface 2411 of the connection protrusion 240 is an arc surface; or the action surface 2411 of the connection protrusion 240 is an inclined plane, and there is a preset angle between the action surface 2411 of the connection protrusion 240 and the first preset direction, and the preset angle is an acute angle, so that when the action force applied to the lifting seat 220 is greater than the preset force, the action surface 2411 of the connection protrusion 240 is separated from the connection groove 221.

[0042] In this embodiment, the action surface 2411 of the connecting protrusion 240 is generally a spherical surface. In other embodiments, the action surface 2411 of the connecting protrusion 240 may also be a plane having a preset angle of acute angle with the first preset direction or an arc surface different from the spherical surface; the value of the preset action force is approximately equal to the value of the friction force applied by the action surface 2411 of the connecting protrusion 240 to the groove wall of the connecting groove 221.

[0043] As the screw rod 210 rotates, the connecting member 230 will move along the first preset direction. Since the connecting protrusion 240 is inserted into the connecting groove 221 and the action surface 2411 of the connecting protrusion 240 contacts the groove wall of the connecting groove 221, the lifting seat 220 will also move along the first preset direction with the connecting member 230. In this process, if the force applied to the lifting seat 220 is greater than the preset force, the action surface 2411 of the connecting protrusion 240 will separate from the groove wall of the connecting groove 221 and will be separated from the connecting groove 221, so that the lifting seat 220 is no longer connected to the connecting member 230, so that the lifting seat 220 is no longer restricted by the connecting member 230, and the force applied to the lifting seat 220 is no longer transmitted to the connecting member 230 and the screw rod 210.

[0044] Reference Figures 2 to 5 In one embodiment, the first connecting structure is a connecting protrusion 240, and the second connecting structure is a connecting groove 221; a receiving groove 231 is provided on the connecting member 230, and the connecting protrusion 240 is slidably installed in the receiving groove 231 along a second preset direction, and the second preset direction and the first preset direction form an angle with each other; an elastic body 250 is installed in the receiving groove 231, and the elastic body 250 has a first end and a second end. The first end of the elastic body 250 contacts the groove wall of the receiving groove 231, and the second end of the elastic body 250 contacts the connecting protrusion 240. The elastic body 250 is used to push the connecting protrusion 240 to pass into the connecting groove 221.

[0045] In this embodiment, the accommodating groove 231 is generally arranged on the surface of the connecting member 230 close to the lifting seat 220, and the second preset direction is generally perpendicular to the first preset direction; the elastic body 250 is generally a spring, and when the action surface 2411 of the connecting protrusion 240 contacts the groove wall of the connecting groove 221, the elastic body 250 is in a compressed state. At this time, the elastic body 250 applies a thrust to the connecting protrusion 240, so that there is a friction force between the action surface 2411 of the connecting protrusion 240 and the groove wall of the connecting groove 221 to form a preset action force; During the process of the connection protrusion 240 being separated from the connection groove 221, the force applied to the lifting seat 220 overcomes the friction between the action surface 2411 of the connection protrusion 240 and the groove wall of the connection groove 221, and the elastic body 250 is in a more compressed state; after the connection protrusion 240 is completely separated from the connection groove 221, the elastic body 250 in the compressed state pushes the connection protrusion 240 to move in the direction away from the receiving groove 231 until the elastic body 250 returns to the natural state; in other embodiments, the elastic body 250 can also be elastic rubber. The receiving groove 231 not only plays a protective role, but also plays a limiting role, ensuring the resetting effect of the elastic body 250, and in addition, it also plays a role in reducing the volume of the lifting mechanism.

[0046] In addition, in other embodiments, the first connection structure can also be a connection groove 221, and the second connection structure can be a connection protrusion 240. The connection protrusion 240 is slidably installed on the lifting seat 220 along the second preset direction, and the first preset direction is perpendicular to the second preset direction.

[0047] Reference Figures 3 to 5 In one embodiment, the connecting protrusion 240 includes a protruding portion 241, a connecting portion 242, and a limiting portion 243 which are sequentially connected along a second preset direction, and the protruding portion 241 and the limiting portion 243 are connected through the connecting portion 242; an action surface 2411 of the connecting protrusion 240 is provided on the protruding portion 241, and the protruding portion 241 is penetrated in the connecting groove 221, so as to be disengaged from the connecting groove 221 when the force applied to the lifting seat 220 is greater than the preset force; the accommodating groove 231 has a limiting opening 2311, and the limiting portion 243 is located in the accommodating groove 231, and the limiting opening 2311 of the accommodating groove 231 is used to prevent the limiting portion 243 from being disengaged from the accommodating groove 231.

[0048] In this embodiment, the limiting opening 2311 is provided on the surface of the connecting member 230 close to the lifting seat 220, and the limiting portion 243 covers the limiting opening 2311 of the receiving groove 231, so that the limiting opening 2311 of the receiving groove 231 prevents the limiting portion 243 from leaving the receiving groove 231; when the action surface 2411 of the connecting protrusion 240 contacts the groove wall of the connecting groove 221, the protruding portion 241 is located in the connecting groove 221, a part of the structure of the connecting portion 242 is located outside the receiving groove 231, and another part of the structure of the connecting portion 242 is located in the limiting opening 2311 of the receiving groove 231, and the limiting portion 243 is located in the receiving groove 231, and the surface of the limiting portion 243 close to the connecting portion 242 is in contact with the groove wall of the receiving groove 231, and the surface of the limiting portion 243 away from the connecting portion 242 can The first end of the elastic body 250 is in contact with the elastic body 250, and the elastic body 250 is in a compressed state; in the process of the connection protrusion 240 being separated from the connection groove 221, the protrusion 241 gradually separates from the connection groove 221, the connection part 242 moves along the second preset direction in the limiting opening 2311 of the receiving groove 231, and the limiting part 243 moves along the second preset direction in the receiving groove 231, and the surface of the limiting part 243 away from the connection part 242 can push the elastic body 250 to move toward the limiting opening 2311 away from the receiving groove 231, so that the elastic body 250 is in a more compressed state; after the connection protrusion 240 is completely separated from the connection groove 221, the surface of the limiting part 243 close to the connection part 242 is again attached to the groove wall of the receiving groove 231, and the elastic body 250 returns to a natural state. In addition, in order to facilitate the processing and manufacturing of the connection protrusion 240, the protrusion 241, the connection part 242 and the limiting part 243 are integrally formed.

[0049] Reference Figures 3 to 5 In one embodiment, a first limiting groove section is provided on the limiting portion 243, and a second limiting groove section is provided on the connecting portion 242. The second limiting groove section is connected to the first limiting groove section and forms a first limiting groove 245; the connecting protrusion 240 also includes a limiting column 244, the limiting column 244 is installed in the first limiting groove 245, and the elastic body 250 is sleeved on the outer periphery of the limiting column 244; a second limiting groove 2312 is provided on the groove wall of the accommodating groove 231, and the second end of the elastic body 250 is installed in the second limiting groove 2312.

[0050] In this embodiment, the first limiting groove section and the second limiting groove section are generally coaxial, and the groove diameter of the first limiting groove section and the groove diameter of the second limiting groove section are generally equal. Part of the structure of the limiting column 244 is located in the first limiting groove 245, and the other part of the structure of the limiting column 244 is located outside the first limiting groove 245. The end face of the limiting column 244 close to the first limiting groove 245 is fixedly installed on the groove bottom of the first limiting groove 245; part of the structure of the elastomer 250 is located in the first limiting groove 245, and the other part of the structure of the elastomer 250 is located between the first limiting groove 245 and the second limiting groove 2312, and the rest of the structure of the elastomer 250 is located in the second limiting groove 2312; the setting of the limiting column 244, the first limiting groove 245 and the second limiting groove 2312 all play a limiting role on the elastomer 250, avoiding the elastomer 250 from shaking randomly in the receiving groove 231, and ensuring the stability of the elastomer 250 in the receiving groove 231.

[0051] Reference Figures 2 to 4 In one embodiment, the receiving groove 231 also has an installation opening 2313, and the connecting protrusion 240 is installed in the receiving groove 231 through the installation opening 2313 of the receiving groove 231. A blocking cover 260 for blocking the installation opening 2313 of the receiving groove 231 is also installed on the connecting member 230.

[0052] In this embodiment, the connecting member 230 has a first surface and a second surface that are adjacent to each other. The limiting opening 2311 of the receiving groove 231 is arranged on the first surface of the connecting member 230, and the mounting opening 2313 of the receiving groove 231 is arranged on the second surface of the connecting member 230; the provided mounting opening 2313 facilitates the installation of the connecting protrusion 240 and the elastomer 250 into the receiving groove 231, thereby improving the convenience of assembly; the blocking cover 260 is generally installed on the connecting member 230 by means of screws, pins or magnetic attraction, and the provided blocking cover 260 plays a blocking role, thereby preventing debris or dust from entering the receiving groove 231 through the mounting opening 2313 of the receiving groove 231, thereby ensuring the safety and cleanliness of the interior of the receiving groove 231.

[0053] Reference Figures 3 to 5 In one embodiment, the action surface 2411 of the connecting protrusion 240 fits with the groove wall of the connecting groove 221; the action surface 2411 of the connecting protrusion 240 is a spherical surface.

[0054] In this embodiment, the protrusion 241 is hemispherical in shape, and the active surface 2411 of the connecting protrusion 240 is spherical. In other embodiments, the protrusion 241 may also be conical, and the active surface 2411 of the connecting protrusion 240 is flat. This design in which the active surface 2411 of the connecting protrusion 240 fits the groove wall of the connecting groove 221 is not only conducive to increasing the contact area between the active surface 2411 of the connecting protrusion 240 and the groove wall of the connecting groove 221, thereby increasing the preset force, but also facilitates the separation of the active surface 2411 of the connecting protrusion 240 from the groove wall of the connecting groove 221, thereby facilitating the active surface 2411 of the connecting protrusion 240 to be separated from the connecting groove 221.

[0055] Reference Figure 1 , Figure 2 as well as Figure 6 In one embodiment, a limiting groove 222 is provided on the lifting seat 220, and the connecting member 230 is installed in the limiting groove 222. The groove wall of the limiting groove 222 contacts the surface of the connecting member 230 to limit the rotation of the connecting member 230 in the limiting groove 222; the lifting mechanism also includes a guide rod 300, which is installed on the mounting shell 100 along a first preset direction, and a guide hole is provided on the lifting seat 220, and the guide rod 300 is passed through the guide hole.

[0056] In this embodiment, the connecting member 230 is embedded in the limiting groove 222, and the surface of the connecting member 230 is kept in contact with the groove wall of the limiting groove 222. The setting of the limiting groove 222 not only plays a limiting role, avoiding the rotation of the connecting member 230, and ensuring that the connecting member 230 only moves along the first preset direction, but also plays a role in reducing the volume of the lifting mechanism; the length direction of the guide rod 300 is parallel to the first preset direction, the guide rod 300 is fixedly installed on the mounting shell 100, and the lifting seat 220 is slidably sleeved on the guide rod 300 through the guide hole, and the set guide rod 300 plays a guiding role; to ensure the guiding effect, the number of the guide rods 300 is at least two, and the multiple guide rods are arranged at intervals.

[0057] In one embodiment, the number of first connection structures is multiple, and the multiple first connection structures are arranged on the connecting member 230 in sequence along the third preset direction, and the first preset direction and the third preset direction form an angle with each other; the number of second connection structures is the same as the number of first connection structures, and the multiple first connection structures are arranged one-to-one with the multiple second connection structures.

[0058] Reference Figure 4In the first specific embodiment, the first connecting structure is a connecting protrusion 240, the third preset direction is not only perpendicular to the second preset direction, but also perpendicular to the first preset direction, and the number of the connecting protrusions 240 is two or more; the second connecting structure is a connecting groove 221, and the multiple connecting grooves 221 are all arranged on the same surface of the lifting seat 220, and two adjacent connecting grooves 221 in the multiple connecting grooves 221 are connected to each other, and the multiple connecting grooves 221 together constitute a connecting through groove, so that the connecting protrusion 240 can be inserted into the connecting groove 221; the number of elastic bodies 250 is the same as the number of connecting protrusions 240, and the multiple elastic bodies 250 are arranged one-to-one with the multiple connecting protrusions 240.

[0059] In a second specific embodiment, the first connecting structure is a connecting protrusion 240, the third preset direction is parallel to the second preset direction, and the number of the connecting protrusions 240 is two; the number of the elastomer 250 is one, and the two connecting protrusions 240 share the same elastomer 250; or the number of the elastomers 250 is two, and the two elastomers 250 are respectively arranged in a one-to-one correspondence with the two connecting protrusions 240, and a baffle or a block is provided between the two elastomers 250; the second connecting structure is a connecting groove 221, and the two connecting grooves 221 are respectively arranged on two opposite surfaces of the lifting seat 220, and the direction from one of the two connecting grooves 221 to the other connecting groove 221 is parallel to the second preset direction.

[0060] In the third specific embodiment, the first connecting structure is a connecting protrusion 240, the angle between the third preset direction and the second preset direction is an acute angle, the third preset direction is perpendicular to the first preset direction, and the number of the connecting protrusions 240 is two; the second connecting structure is a connecting groove 221, and the two connecting grooves 221 are respectively arranged on two opposite surfaces of the lifting seat 220, and the direction from one of the two connecting grooves 221 to the other connecting groove 221 is parallel to the third preset direction.

[0061] In the fourth specific embodiment, the first connecting structure is a connecting protrusion 240, the third preset direction is a curve, and the number of the connecting protrusions 240 is three or more; the second connecting structure is a connecting groove 221, and the multiple connecting grooves 221 are all arranged on the same surface of the lifting seat 220, and two adjacent connecting grooves 221 among the multiple connecting grooves 221 are connected to each other, and the multiple connecting grooves 221 together constitute a connecting through groove.

[0062] Reference Figure 1 , Figure 2 , Figure 7 as well as Figure 8In one embodiment, the lifting mechanism also includes a driving unit 400, which is a driving motor; the transmission unit 200 also includes a reduction gear set 500, which has an input gear and an output gear, and the output shaft of the driving unit 400 is drivingly connected to the input gear of the reduction gear set 500, and the output gear of the reduction gear set 500 is drivingly connected to the screw rod 210.

[0063] In this embodiment, the reduction gear set 500 includes a plurality of gears meshing in sequence. The specific structure of the reduction gear set 500 belongs to the common knowledge of those skilled in the art and will not be elaborated in detail here. The reduction gear set 500 is provided to reduce speed and increase force. In addition, the lifting mechanism also includes a control unit 600, which is a control circuit board. The control unit 600 is electrically connected to the driving unit 400 and is fixedly mounted on the mounting shell 100. The start and stop of the driving unit 400 can be controlled by the control unit 600.

[0064] Reference Figure 7 and Figure 8 In one embodiment, the mounting shell 100 is provided with a mounting groove 110, and the mounting groove 110 has a mounting opening 111, and the lifting seat 220 is installed in the mounting groove 110 through the mounting opening 111 of the mounting groove 110; the lifting seat 220 is provided with a receiving groove 223, and the driving part 400 is installed in the receiving groove 223; the mounting shell 100 has a mounting groove 120, and the reduction gear set 500 is installed in the mounting groove 120.

[0065] In the present embodiment, the mounting groove 110 further has a lifting opening 112, and the lifting seat 220 extends out of or enters the mounting groove 110 through the lifting opening 112 of the mounting groove 110, and the screw rod 210 and the guide rod 300 are both installed in the mounting groove 110. The provided mounting groove 110 not only plays a protective role, but also plays a role in reducing the volume of the lifting mechanism; the accommodating groove 223 is provided on the surface of the lifting seat 220 away from the lifting opening 112 of the mounting groove 110, and the provided accommodating groove 223 not only plays a protective role, but also plays a role in reducing the volume of the lifting mechanism; the mounting groove 120 is provided on the surface of the mounting shell 100 and is located on one side of the mounting groove 110, and the mounting groove 120 has an opening, and the reduction gear set 500 is installed in the mounting groove 120 through the opening of the mounting groove 120, and a blocking plate 700 for blocking the opening of the mounting groove 120 is installed on the mounting shell 100, and the provided mounting groove 120 not only plays a protective role, but also plays a role in reducing the volume of the lifting mechanism.

[0066] Reference Figures 1 to 8 According to another aspect of the present application, the present application also provides a lifting device, which includes a load component and the above-mentioned lifting mechanism, and the load component is installed on a lifting seat 220.

[0067] In the embodiment of the present application, the lifting device is a lifting audio device, a lifting fragrance device or a lifting camera device, and correspondingly, the load component is a sound body, a fragrance body or a camera body.

[0068] In summary, the lifting mechanism and lifting device provided by the present embodiment have at least the following beneficial technical effects: when the lifting seat 220 in the present application needs to move along the first preset direction, the screw rod 210 is rotated, and along with the rotation of the screw rod 210, the connecting member 230 will move along the first preset direction. Since the first connecting structure is connected to the second connecting structure, the lifting seat 220 will also move along the first preset direction with the connecting member 230; in this process, if the force applied to the lifting seat 220 is greater than the preset force, the second connecting structure will be separated from the first connecting structure, so that the lifting seat 220 is no longer connected to the connecting member 230, so that not only the lifting seat 220 is no longer restricted by the connecting member 230, but also the force applied to the lifting seat 220 is no longer transmitted to the connecting member 230 and the screw rod 210, so as to prevent the lifting seat 220, the connecting member 230 and the screw rod 210 from being deformed or damaged, thereby ensuring the integrity of the lifting seat 220, the connecting member 230 and the screw rod 210 and extending the service life of the lifting mechanism.

[0069] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A lifting mechanism, characterized in that: It includes a mounting shell and a transmission part; the transmission part includes: A screw rod is rotatably mounted on the mounting shell, and a length direction of the screw rod is parallel to a first preset direction; A lifting seat, used for moving on the mounting shell along the first preset direction; A connecting piece is sleeved on the outer circumference of the screw rod, and the connecting piece is threadedly connected to the screw rod and is used to move along the first preset direction; a first connecting structure is provided on the connecting piece, and a second connecting structure is provided on the lifting seat, and the second connecting structure is connected to the first connecting structure. When the force applied to the lifting seat is greater than the preset force, the second connecting structure is separated from the first connecting structure.

2. The lifting mechanism according to claim 1, characterized in that: One of the first connection structure and the second connection structure is a connection protrusion, and the other is a connection groove, and the connection protrusion is inserted into the connection groove; The connecting protrusion has an active surface in contact with the groove wall of the connecting groove, and the active surface of the connecting protrusion is an arc surface; or the active surface of the connecting protrusion is an inclined plane, and there is a preset angle between the active surface of the connecting protrusion and the first preset direction, and the preset angle is an acute angle, so that the active surface of the connecting protrusion is separated from the connecting groove when the force applied to the lifting seat is greater than the preset force.

3. The lifting mechanism according to claim 2, characterized in that: The first connection structure is the connection protrusion, and the second connection structure is the connection groove; The connecting member is provided with a receiving groove, and the connecting protrusion is slidably installed in the receiving groove along a second preset direction, and the second preset direction and the first preset direction form an angle with each other; An elastomer is installed in the accommodating groove, and the elastomer has a first end and a second end. The first end of the elastomer contacts the groove wall of the accommodating groove, and the second end of the elastomer contacts the connecting protrusion. The elastomer is used to push the connecting protrusion to penetrate into the connecting groove.

4. The lifting mechanism according to claim 3, characterized in that: The connecting protrusion comprises a protruding portion, a connecting portion and a limiting portion which are sequentially connected along the second preset direction, and the protruding portion and the limiting portion are connected via the connecting portion; The action surface of the connecting protrusion is arranged on the protruding portion, and the protruding portion is inserted into the connecting groove, and is used to disengage from the connecting groove when the force applied to the lifting seat is greater than the preset force; the accommodating groove has a limiting opening, and the limiting portion is located in the accommodating groove, and the limiting opening of the accommodating groove is used to prevent the limiting portion from disengaging from the accommodating groove.

5. The lifting mechanism according to claim 4, characterized in that: The limiting part is provided with a first limiting groove section, the connecting part is provided with a second limiting groove section, the second limiting groove section is connected with the first limiting groove section, and forms a first limiting groove; The connecting protrusion also includes a limiting column, the limiting column is installed in the first limiting groove, and the elastic body is sleeved on the outer circumference of the limiting column; a second limiting groove is provided on the groove wall of the accommodating groove, and the second end of the elastic body is installed in the second limiting groove; The receiving groove also has an installation opening, and the connecting protrusion is installed in the receiving groove through the installation opening of the receiving groove, and a blocking cover for blocking the installation opening of the receiving groove is also installed on the connecting member; The active surface of the connecting protrusion is in contact with the groove wall of the connecting groove; and the active surface of the connecting protrusion is a spherical surface.

6. The lifting mechanism according to claim 1, characterized in that: The lifting seat is provided with a limiting groove, the connecting member is installed in the limiting groove, and the groove wall of the limiting groove contacts the surface of the connecting member to limit the rotation of the connecting member in the limiting groove; The lifting mechanism further comprises a guide rod, which is mounted on the mounting shell along the first preset direction. The lifting seat is provided with a guide hole, and the guide rod is inserted into the guide hole.

7. The lifting mechanism according to claim 1, characterized in that: There are multiple first connection structures, and the multiple first connection structures are sequentially arranged on the connection member along a third preset direction, and the first preset direction and the third preset direction form an angle with each other; The number of the second connection structures is the same as the number of the first connection structures, and the plurality of the first connection structures and the plurality of the second connection structures are arranged in a one-to-one correspondence.

8. The lifting mechanism according to any one of claims 1 to 7, characterized in that: The lifting mechanism further comprises a driving part, and the driving part is a driving motor or a driving motor; The transmission part also includes a reduction gear set, which has an input gear and an output gear. The output shaft of the driving part is drivingly connected to the input gear of the reduction gear set, and the output gear of the reduction gear set is drivingly connected to the screw rod.

9. The lifting mechanism according to claim 8, characterized in that: The mounting shell is provided with a mounting groove, the mounting groove has a mounting opening, and the lifting seat is installed in the mounting groove through the mounting opening of the mounting groove; the lifting seat is provided with a receiving groove, and the driving part is installed in the receiving groove; the mounting shell has a mounting groove, and the reduction gear set is installed in the mounting groove.

10. A lifting device, characterized in that: The lifting device comprises a load component and the lifting mechanism according to any one of claims 1 to 9, wherein the load component is mounted on the lifting seat.

Images