Lifting device, lifting system and hot pot

Abstract

The present application relates to the technical field of lifting equipment, and the present application discloses a lifting device, a lifting system and a hot pot. The lifting device includes a limit shaft, a spiral track, a power mechanism, a roller and a push part, wherein the push part can be slidably mounted on the limit shaft, and the power mechanism is mounted on the push part, and the power mechanism drives the roller to rotate, and the roller rolls along the spiral direction of the spiral track, thereby driving the push part to rise or fall along the axial direction of the limit shaft, and the push part drives the part to be lifted to rise or fall. Compared with the prior art, the power mechanism drives the roller to rise or fall along the thread direction of the threaded track, and the power mechanism can also push the push part to slide along the axial direction of the limit shaft while transmitting, thereby pushing the part to be lifted to rise or fall, and concentrating the gravity of the part to be lifted on the spiral track, thereby increasing the load-bearing area and improving the stability during the movement of the roller and the spiral track.

Description

Technical Field

[0001] The present application relates to the field of lifting equipment, and in particular to a lifting device, a lifting system and a hot pot. Background Art

[0002] In the process of processing or using objects, it is often necessary to move some parts with smaller mass to meet the needs of daily use. Among the commonly used mobile equipment for objects, lifting equipment has become an indispensable and important production tool. In the process of moving some objects with smaller volume and mass, in order to improve the stability during the movement, a motor is often used to drive the threaded rod to rotate. The lifting rod and the threaded rod cooperate through threaded transmission, and the lifting rod will move relative to the threaded rod along its axial direction to achieve the purpose of lifting. However, in this method, since the lifting rod directly lifts the object or tray, the support force of the threaded rod and the lifting rod on the object mainly depends on the support force of the object after the thread is engaged, and the quality requirements of the object are relatively high. The load-bearing capacity of the entire device is small. In the process of long-term use, the tooth shape of the thread is easy to wear and the service life is short. In addition, due to the large contact area between the lifting rod and the threaded rod, this transmission method has a large noise during operation, unstable transmission, and ultimately cannot be lifted. Summary of the invention

[0003] In order to solve the technical problems of low load-bearing capacity, high noise, easy wear of threads and unstable transmission of equipment with threaded transmission, the main purpose of this application is to provide a lifting device, lifting system and hot pot with large load-bearing capacity and stable transmission.

[0004] In order to achieve the above invention objectives, this application adopts the following technical solutions:

[0005] According to one aspect of the present application, a lifting device is provided, including a limiting shaft, a spiral track, a power mechanism, a roller and a push portion, wherein the push portion can be slidably mounted on the limiting shaft, the power mechanism is mounted on the push portion, the power mechanism drives the roller to rotate, and the roller rolls along the spiral direction of the spiral track, thereby driving the push portion to rise or fall along the axial direction of the limiting shaft, and the push portion drives the object to be lifted to rise or fall.

[0006] According to one embodiment of the present application, the roller includes a gear, the spiral track includes a spiral rack, and the power mechanism drives the gear to move along the spiral direction of the spiral rack, so that the power mechanism pushes the pushing part to slide axially along the limiting shaft.

[0007] According to one embodiment of the present application, it includes a connecting part, which is arranged between the pushing part and the limiting shaft. The power mechanism drives the pushing part to rotate relative to the limiting shaft through the connecting part, and makes the pushing part push the part to be lifted to slide axially along the limiting shaft.

[0008] According to one embodiment of the present application, it includes a lifting rod, which is slidably mounted on the limiting shaft. One end of the lifting rod is assembled on the part to be lifted, and the other end is forced to abut against the pushing portion. The pushing portion drives the lifting rod to slide along the axial direction of the limiting shaft, so as to push the part to be lifted to rise or fall along the axial direction of the limiting shaft through the lifting rod.

[0009] According to an embodiment of the present application, the force-bearing contact surface between the lifting rod and the pushing portion is a rotating surface, and the cross-section of the rotating surface is an arc-shaped structure.

[0010] According to an embodiment of the present application, the distance from any position of the pressing surface of the spiral track and the roller to the limiting axis in the axial projection is the same.

[0011] According to one embodiment of the present application, the spiral track is coiled on the outside with the limiting axis as the axis, and there is a spacing distance between the spiral track and the limiting axis.

[0012] According to an embodiment of the present application, a limiting member is included, and the limiting member is assembled on the power mechanism to limit the gap distance between the roller and the spiral track through the limiting member.

[0013] According to an embodiment of the present application, the limiting member includes an arcuate surface, and the arcuate surface is used to abut against the side surface of the spiral track.

[0014] According to another aspect of the present application, a lifting system is provided, comprising the lifting device described above.

[0015] According to another aspect of the present application, a hot pot is provided, comprising the lifting device.

[0016] It can be seen from the above technical solutions that the advantages and positive effects of the lifting device, lifting system and hot pot of the present application are:

[0017] By using the spiral track, on the one hand, the power mechanism and the roller rise or fall relative to the spiral direction of the spiral track, and at the same time, the power mechanism pushes the pushing part to slide relative to the limit shaft, so as to drive the part to be lifted to rise or fall relative to the axial direction of the limit shaft. In this way, the gravity of the part to be lifted is concentrated on the spiral track, and the load-bearing area is large. In the process of the roller moving along the spiral track, the stability of the roller during the lifting process can be improved, the problem of mutual wear during the threaded transmission connection can be avoided, and the stability of the overall structure can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0020] Figure 1 A schematic diagram of the overall structure of a lifting device provided in an embodiment of the present application;

[0021] Figure 2 A schematic cross-sectional structure diagram of a lifting device provided in an embodiment of the present application;

[0022] Figure 3 This is an enlarged structural diagram of a cross-sectional structure A of a lifting device in an embodiment provided in the present application;

[0023] Figure 4 This is an enlarged structural diagram of a cross-sectional structure A of a lifting device in another embodiment provided in the embodiment of the present application;

[0024] Figure 5 This is an enlarged structural diagram of a cross-sectional structure A of a lifting device in another embodiment provided in the embodiment of the present application;

[0025] Figure 6 A schematic diagram of a top view of a lifting device provided in an embodiment of the present application;

[0026] Figure 7 A partial cross-sectional structural schematic diagram of a hot pot provided in an embodiment of the present application.

[0027] in:

[0028] 1. Limiting shaft; 2. Spiral track; 201. Protrusion; 202. Concave portion; 3. Power mechanism; 4. Roller; 5. Abutment portion; 6. Connecting portion; 7. Lifting rod; 701. Rotating surface; 8. Limiting member; 801. Arc surface; 9. Filter basket; 10. Base; 11. Axle seat; 12. Pot body. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0030] When lifting some objects with smaller mass, threaded matching transmission is often used. For example, a motor is used to drive the threaded rod to rotate. The lifting rod and the threaded rod are matched through threaded transmission. The lifting rod will move axially relative to the threaded rod, which makes the matching threaded joint bear the gravity of the object. During the transmission process, as the weight of the object increases, the load-bearing capacity between the threads increases. After long-term use, the wear between the threads increases. At the same time, the noise during transmission is relatively large, and the lifting cannot be stable, and the service life of the threaded rod is short. In order to solve the technical problems of low load-bearing capacity, high noise, easy wear of threads and unstable transmission of equipment with threaded transmission for lifting, according to one aspect of the present application, a lifting device is provided, including a limit shaft 1, a spiral track 2, a power mechanism 3, a roller 4 and a push portion 5, the push portion 5 being slidably mounted on the limit shaft 1, the power mechanism 3 being mounted on the push portion 5, the power mechanism 3 driving the roller 4 to rotate, the roller 4 rolling along the spiral direction of the spiral track 2, thereby driving the push portion 5 to rise or fall along the axial direction of the limit shaft 1, and the push portion 5 driving the part to be lifted to rise or fall.

[0031] The power structure can drive the roller 4 to roll along the spiral direction on the threaded track. On the one hand, the threaded track increases the bearing force on the part to be lifted. On the other hand, the power mechanism 3 drives the pushing part to rotate circumferentially relative to the limiting member 8 through the threaded track, while pushing the pushing part to slide axially along the limiting member, thereby pushing the part to be lifted to rise or fall.

[0032] Furthermore, the push portion may be provided with an abutment plate, and the power mechanism 3 is assembled on one side of the abutment plate, so that the abutment plate can be slidably mounted on the limit shaft 1, and one end of the power mechanism 3 is fixedly assembled on the abutment plate, and the other end, that is, the power output end, is transmission-connected to the roller 4, and the roller 4 can abut on the spiral track 2, that is, the spiral track 2 is supported on the roller 4, and the power mechanism 3 drives the roller 4 to roll relative to the spiral direction of the spiral track 2, and at the same time makes the power mechanism 3 rise or fall relative to the axial direction of the spiral track 2, so that the power mechanism 3 can push the push portion to slide axially relative to the limit shaft 1, and then push the lifting member to be lifted up or down through the push portion.

[0033] As an example, the power mechanism 3 can be set as a synchronous motor, the power output end is an output shaft, and the roller 4 can be set as a roller 4. The circumferential side of the roller 4 abuts against the spiral track 2, and the output shaft is connected to the roller 4 in a transmission manner. When the motor is started, the roller 4 starts to roll relative to the surface of the spiral track 2. At the same time, since the spiral track 2 is a slope that is constantly rising or falling, the roller simultaneously pushes the motor back to rise or fall along the axial direction of the spiral track 2, which causes the motor to push the pushing part to rise or fall along the axial direction of the spiral track 2.

[0034] According to one embodiment of the present application, the spiral track is coiled on the outside with the limiting axis as the axis, and there is a spacing distance between the spiral track and the limiting axis.

[0035] According to one embodiment of the present application, the distance from any position of the pressing surface of the spiral track and the roller to the limit axis in the axial projection is the same. Preferably, the spiral track 2 is a cylindrical spiral structure, and the axis of the limit axis 1 is set to coincide with the axis position of the spiral track 2, so that the power mechanism 3 rotates circumferentially relative to the limit axis 1 along the spiral direction of the spiral track 2, and pushes the push portion to slide axially along the limit axis 1, thereby further limiting the ascending or descending direction of the power mechanism 3, and avoiding the axis of the limit axis 1 being set to be misaligned with the axis position of the spiral track 2, reducing the friction between the push portion and the limit axis 1, and reducing noise.

[0036] refer to Figure 1 and Figure 2As shown, in one embodiment, the spiral track 2 can be set as a spiral strip plate, and after the two ends of the spiral strip plate are fixedly assembled, the roller 4 is abutted against the position of the spiral track 2. In actual use, the material of the spiral track 2 can be set, which can be steel or plastic, or the pitch and rotation radius of the spiral track 2 can be controlled to adjust the bearing capacity of the spiral track 2 during use. Those skilled in the art can adjust it according to actual use conditions, and this application does not make specific limitations on this.

[0037] In another implementation, a plurality of the spiral tracks 2 can be set, and each of the spiral tracks 2 corresponds to a power mechanism 3 and a roller 4, so that the spiral paths of the plurality of spiral tracks 2 are staggered, and the parameters for controlling other spiral tracks 2 are the same, so that the plurality of power mechanisms 3 are distributed along the circumference of the limit axis 1 and simultaneously push the push plate, so that the gravity of the object to be lifted is finally dispersed on different spiral tracks 2, further improving the thrust force on the object to be lifted and improving the stability during the lifting process.

[0038] In another embodiment, a load-bearing pipe may be included, and the spiral track 2 is arranged on the inner side of the pipe wall of the load-bearing pipe, so that the load-bearing pipe can further disperse the gravity exerted on the spiral track 2, thereby increasing the bearing capacity of the spiral track 2 and improving the application range of the lifting device.

[0039] refer to Figure 1 , Figure 2 and Figure 6 As shown, according to one embodiment of the present application, a convex portion 201 or a concave portion 202 for matching and engaging is provided between the spiral track 2 and the roller 4. For example, at the place where the spiral track 2 and the roller 4 are in force contact, the convex portion 201 or the concave portion 202 are both provided on the spiral extension surface of the spiral track 2, such as making the convex portion 201 on the surface of the roller 4 and the concave portion 202 on the surface of the spiral track 2, so that when the roller 4 rolls relative to the spiral track 2, it can match the concave and convex of the spiral track 2, thereby increasing the friction between the spiral track 2 and the roller 4, and can disperse the gravity through the convex portion 201 and the concave portion 202, thereby improving the stability during the lifting process.

[0040] According to one embodiment of the present application, it includes a limit member 8, which is assembled on the power mechanism 3 to limit the gap distance between the roller 4 and the spiral track 2 through the limit member 8. Preferably, the limit member 8 can be configured to extend a plate to one side of the spiral track 2, so that the spiral track 2 can be slidably clamped between the roller 4 and the limit member 8. The gap distance between the roller 4 and the spiral track 2 can be adjusted by adjusting the spacing distance between the roller 4 and the limit member 8, thereby increasing the abutment force between the roller 4 and the spiral track 2, further improving the stability during use, and reducing the noise during use.

[0041] Preferably, in order to keep the gap distance between the roller 4 and the spiral track 2 within a set interval range during the lifting process, the limiter 8 can be arranged at one end of the power structure, so that the limiter 8 can rotate relative to the circumferential direction of the limiter shaft 1 along with the position of the roller 4, and at the same time rise or fall along the spiral direction of the spiral track 2, so that the limiter 8 abuts against one side of the spiral track 2 in real time. Preferably, the limiter 8 includes an arcuate surface 801, and the arcuate surface 801 is used to abut against the side of the spiral track 2, and then abuts against the side of the spiral track 2 through the arcuate surface 801, so as to reduce the sliding friction between the limiter 8 and the spiral track 2 through the arcuate surface 801, thereby reducing the operating noise.

[0042] Preferably, an arc surface 801 is provided between the spiral track 2 and the limit member 8, so that the arc surface 801 of the limit member 8 protrudes toward the side of the spiral track 2, and the arc surface 801 of the spiral track 2 protrudes toward one side of the limit member 8, so as to reduce the force contact area between the spiral track 2 and the limit member 8, so as to reduce the sliding friction between the limit member 8 and the spiral track 2 through the arc surface 801, so as to improve the utilization efficiency of the output power of the power mechanism 3.

[0043] refer to Figure 3 and Figure 4 As shown, according to an embodiment of the present application, it includes a connecting portion 6, and the connecting portion 6 is arranged between the push portion and the limit shaft 1. The power mechanism 3 drives the push portion to rotate relative to the limit shaft 1 through the connecting portion 6, and enables the push portion to push the to-be-elevated component to slide along the axial direction of the limit shaft 1. Preferably, the connecting portion 6 is arranged as a sliding hole at one end of the abutting end, and the push portion can slide axially and rotate circumferentially relative to the limit shaft 1 through the sliding hole.

[0044] Preferably, the rotating connecting member can be set as a bearing member, such as a rolling bearing, and the parameters of the bearing member can be adjusted so that the push part can slide axially and rotate circumferentially relative to the limit shaft 1. At the same time, it can avoid the synchronous rotation of the lifting member and the push part, further improving the stability during the lifting process.

[0045] According to one embodiment of the present application, the roller 4 includes a gear, the spiral track 2 includes a spiral rack, and the power mechanism 3 drives the gear to move along the spiral direction of the spiral rack, so that the power mechanism 3 pushes the pushing portion to slide along the axial direction of the limiting shaft 1, so that the gear and the spiral rack are meshed with each other, and the power output end of the power mechanism 3 drives the gear to rotate, so that the gear rises in a spiral along the spiral path of the spiral rack. The power mechanism 3 is connected to the pushing portion on one side, and the pushing portion is slidable relative to the limiting shaft 1, that is, the power mechanism 3 is active and, in the process of the gear meshing and rolling along the spiral gear, the power mechanism 3 is simultaneously raised or lowered relative to the axial direction of the spiral rack, thereby making the power mechanism 3 push the pushing portion to slide along the axial direction of the limiting shaft 1, and then driving the device to be lifted to rise or fall through the pushing portion.

[0046] According to one embodiment of the present application, it includes a lifting rod 7, which is slidably mounted on the limiting shaft 1. One end of the lifting rod 7 is assembled on the part to be lifted, and the other end is forced to abut against the pushing portion. The pushing portion drives the lifting rod 7 to slide along the axial direction of the limiting shaft 1, so as to push the part to be lifted to rise or fall along the axial direction of the limiting shaft 1 through the lifting rod 7. The lifting rod 7 is made to extend along the axial direction of the limiting shaft 1, and the lifting rod 7 can slide axially relative to the limiting shaft 1 through the pushing portion, so as to push the part to be lifted to rise or fall, and then the power output power of the power mechanism 3 is shortened through the lifting rod 7. In actual use, a tray can be assembled at one end of the lifting rod 7, and the other end abuts the pushing portion, and the part to be lifted is abutted by the tray to rise or fall, and the contact area with the part to be lifted is increased by the tray, and then the lifting rod 7 reduces the contact area with the abutting portion 5, thereby avoiding the circumferential rotation of the lifting rod 7 relative to the limiting shaft 1, and then avoiding the circumferential rotation of the part to be lifted along the limiting shaft 1, thereby improving the stability during the lifting process.

[0047] refer to Figure 4 and Figure 5As shown, according to an embodiment of the present application, the force-bearing contact surface between the lifting rod 7 and the housing is a rotating surface 701, and the cross section of the rotating surface 701 is an arc-shaped structure. The rotating surface 701 can be set as an arc-shaped structure, and while the contact portion 5 pushes the lifting rod 7 to lift and lower through the rotating surface 701, the rotating surface 701 can rotate circumferentially relative to the limiting shaft 1, further reducing the sliding friction between the lifting rod 7 and the push portion, preventing the lifting rod 7 from driving the lifting member to rotate circumferentially relative to the limiting shaft 1, and further improving the stability during the lifting process. .

[0048] According to another aspect of the present application, a lifting system is provided, comprising the lifting device described above.

[0049] According to another aspect of the present application, a hot pot is provided, comprising the lifting device.

[0050] refer to Figure 7 As shown, as an example, the hot pot includes a base 10, a filter basket 9, a pot body 12 and an axle seat 11, the axle seat 11 is used to fix the limit shaft 1, the limit shaft 1 extends to one side of the filter basket 9, the push portion abuts against the filter basket 9, and the power mechanism 3 drives the roller 4 to roll along the spiral direction of the spiral track 2, and pushes the push portion to slide along the axial direction of the limit shaft 1, so that the push portion pushes the filter basket 9 to rise or fall along the axial direction of the limit shaft 1.

[0051] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0052] The foregoing is merely a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A lifting device, characterized in that: The device comprises a limit shaft (1), a spiral track (2), a power mechanism (3), a roller (4) and a push portion (5), wherein the push portion (5) is slidably mounted on the limit shaft, the power mechanism is mounted on the push portion (5), the power mechanism (3) drives the roller (4) to rotate, and the roller (4) rolls along the spiral direction of the spiral track (2), thereby driving the push portion (5) to rise or fall along the axial direction of the limit shaft (1), and the push portion (5) drives the object to be lifted to rise or fall; The lifting rod (7) comprises a lifting rod (7) which is slidably sleeved on the limiting shaft (1), one end of the lifting rod (7) is assembled on the object to be lifted (100), and the other end is forcefully abutted against the pushing portion (5), and the pushing portion (5) drives the lifting rod (7) to slide along the axial direction of the limiting shaft (1), so as to push the object to be lifted (100) to rise or fall along the axial direction of the limiting shaft (1) through the lifting rod (7); The force-bearing contact surface between the lifting rod (7) and the push portion (5) is a rotating surface (701), and the cross section of the rotating surface (701) is an arc-shaped structure.

2. The lifting device according to claim 1, characterized in that: The roller (4) comprises a gear, the spiral track (2) comprises a spiral rack, and the power mechanism (3) drives the gear to move along the spiral direction of the spiral rack, so that the power mechanism (3) pushes the pushing part (5) to slide along the axial direction of the limiting shaft (1).

3. The lifting device according to claim 1, characterized in that: The invention comprises a connecting part (6), wherein the connecting part (6) is arranged between the pushing part (5) and the limiting shaft (1), and the power mechanism (3) drives the pushing part (5) to rotate relative to the limiting shaft (1) through the connecting part (6), and causes the pushing part (5) to push the part to be lifted (100) to slide axially along the limiting shaft (1).

4. The lifting device according to claim 1, characterized in that: In axial projection, the distance from any position of the pressed surface of the spiral track (2) and the roller (4) to the limiting axis (1) is the same.

5. The lifting device according to claim 1, characterized in that: The spiral track (2) is wound around the outer side with the limiting axis (1) as the axis, and there is a spacing distance between the spiral track (2) and the limiting axis (1).

6. The lifting device according to any one of claims 1 to 5, characterized in that: It comprises a limiting member (8), wherein the limiting member (8) is assembled on the push portion (5) so as to limit the gap distance between the roller (4) and the spiral track (2) through the limiting member (8).

7. The lifting device according to claim 6, characterized in that: The spiral track is limited and clamped between the limiting member (8) and the roller.

8. A lifting system, characterized in that: The invention comprises the lifting device according to any one of claims 1 to 7.

9. A hot pot, characterized in that: The invention comprises the lifting device according to any one of claims 1 to 7.

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