CN216638793U - Jacking mechanism - Google Patents

Abstract

The utility model discloses a jacking mechanism, which comprises: roof, jacking device and drive arrangement, jacking device includes first connecting rod subassembly, second connecting rod subassembly and intermediate link, drive arrangement is used for the drive first connecting rod and/or the second connecting rod, so that first connecting rod with the relative rotation of second connecting rod, drive arrangement includes: the driving piece is in transmission connection with the driving block to drive the driving block to reciprocate linearly, one end of the driving rod is in rotary connection with the driving block, and the other end of the driving rod is in rotary connection with the first connecting rod and/or the second connecting rod. The jacking mechanism provided by the embodiment of the utility model has the advantages of simple structure and good stability.

Description

Jacking mechanism

Technical Field

The utility model relates to the field of guiding transportation, in particular to a jacking mechanism.

Background

Amr (autonomous Mobile robot) with jacking function has been widely used in the industries of logistics, warehousing, processing and manufacturing, etc. Amr (automated Mobile robot) jacks up the material shelf at the loading point through the jacking mechanism, and then automatically transports the material shelf to the unloading point, and then places the shelf on the ground through the jacking mechanism, so that the performance of the jacking mechanism has great influence on the whole amr (automated Mobile robot) system.

The existing jacking mechanism has the disadvantages of complex structure, large self weight, high height, easy abrasion and poor reliability, so that the integral design size of the AMR (Autonomous Mobile robot) is increased.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model aims to provide a jacking mechanism which is simple in structure, good in stability and high in reliability.

The jacking mechanism according to the embodiment of the utility model comprises: a top plate; the jacking device is positioned between the top plate and the mounting body and comprises a first connecting rod assembly, a second connecting rod assembly and a middle connecting rod, the first connecting rod assembly and the second connecting rod assembly are arranged between the top plate and the mounting body at intervals, the first connecting rod assembly comprises a first mounting seat, a first connecting rod and a second connecting rod, one end of the first connecting rod is rotatably connected with the first mounting seat, the other end of the first connecting rod is rotatably connected with one end of the first connecting rod, and the other end of the second connecting rod is rotatably connected with the top plate; the second connecting rod assembly comprises a second mounting seat, a third connecting rod and a fourth connecting rod, one end of the third connecting rod is hinged with the second mounting seat, the other end of the third connecting rod is hinged with the fourth connecting rod, and the other end of the fourth connecting rod is hinged with the top plate; two ends of the middle connecting rod are respectively hinged with the first connecting rod and the third connecting rod, and/or two ends of the middle connecting rod are respectively hinged with the second connecting rod and the fourth connecting rod; a driving device for driving the first link and/or the second link to rotate the first link and the second link relatively, the driving device comprising: the driving piece is in transmission connection with the driving block to drive the driving block to reciprocate linearly, one end of the driving rod is in rotary connection with the driving block, and the other end of the driving rod is in rotary connection with the first connecting rod and/or the second connecting rod.

According to the jacking mechanism provided by the embodiment of the utility model, when the driving block moves in the linear direction, the driving rod can rotate between the driving block and the first connecting rod, so that the driving force of the driving block can be better transmitted to the first connecting rod, the linear motion form of the driving block can provide stable driving force, and in addition, the damage to the first connecting rod caused by stress concentration on the first connecting rod can be avoided.

In addition, the jacking mechanism provided by the utility model can also have the following additional technical characteristics:

optionally, the driving block includes a body and an installation support plate, the driving member is in transmission connection with the body, the installation support plate is located at one end of the body facing the driving rod and extends toward the driving rod to construct an assembly groove with an opening facing the driving rod, and the driving rod extends into the assembly groove and is in rotational connection with the installation support plate.

Optionally, the driving device further comprises a guide assembly located between the driving block and the mounting body to limit the moving direction of the driving block.

Optionally, the guide assembly comprises: the sliding rail and the sliding block matched with the sliding rail are arranged, one of the sliding rail and the sliding block is arranged on the driving block, and the other of the sliding rail and the sliding block is arranged on the mounting body.

Optionally, the driving member includes a driving motor, a gear and a rack engaged with the gear, the driving motor is connected to the gear in a transmission manner, and the rack is located on the driving block.

Optionally, the jacking mechanism further comprises a guiding device, the guiding device comprising: the two ends of the pull rod are hinged to the top plate and the third mounting seat respectively, and the plane of the rotation direction of the pull rod is parallel to the plane of the rotation direction of the first connecting rod or the second connecting rod.

Optionally, the pull rod is rotatably connected with one end of the top plate, and the third mounting seat is adjacent to the other end of the top plate.

Optionally, the guide device is provided in plurality, and the plurality of guide devices are symmetrically arranged on two sides of the top plate.

Optionally, the first link assembly, the second link assembly and the intermediate link assembly are provided in plurality, and the intermediate link assembly, the first link assembly and the second link assembly are in one-to-one correspondence.

Optionally, the first connecting rod and the second connecting rod are rotatably connected with a first pin, the third connecting rod and the fourth connecting rod are rotatably connected with a second pin, and two ends of the middle connecting rod are rotatably connected with the first pin and the second pin respectively.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a perspective view of a jacking mechanism according to an embodiment of the present invention.

Fig. 2 is a left side view of a jacking mechanism according to an embodiment of the present invention.

Fig. 3 is a top view of a jacking mechanism according to an embodiment of the present invention.

Reference numerals:

a jacking mechanism 100,

A top plate 1, a reinforcing rib 11,

The jacking device 2, a first connecting rod component 21, a first mounting seat 211, a first connecting rod 212, a second connecting rod 213, a first pin 214, a second connecting rod component 22, a second mounting seat 221, a third connecting rod 222, a fourth connecting rod 223, a second pin 224, an intermediate connecting rod 23,

The driving device 3, the driving motor 31, the coupling 32, the gear 33, the rack 34, the driving block 35, the body 351, the mounting plate 352, the driving rod 36, the sliding rail 37, the sliding block 38,

Guide device 4, third mount 41, pull rod 42.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

A jacking mechanism 100 according to an embodiment of the present invention is described below with reference to fig. 1-3.

As shown in fig. 1, a jacking mechanism 100 according to an embodiment of the present invention includes a top plate 1, a jacking device 2, and a driving device 3.

Specifically, as shown in fig. 1 and 3, the top plate 1 is a rectangular plate, the middle part of the top plate 1 has a hollow structure to reduce the weight of the top plate 1, further, the top plate 1 after reducing the weight can improve the structural strength of the top plate 1 by providing a reinforcing structure, for example, a reinforcing rib 11 can be provided on the upper side or the lower side of the top plate 1, as shown in fig. 1, the bottom surface of the top plate 1 is provided with two reinforcing ribs 11 extending in the front-back direction, the two reinforcing ribs 11 are spaced apart in the left-right direction, and in fig. 1, the two reinforcing ribs 11 are respectively located on the left side and the right side of the top plate 1. Here, it should be noted that the reinforcing ribs 11 may be provided at other positions of the top plate 1, for example, the front side surface, the rear side surface, the left side surface, the right side surface, and the like of the top plate 1, and the present invention is not limited thereto, and further, taking the case where the reinforcing ribs 11 are provided on the bottom surface of the top plate 1 as an example, the number of the reinforcing ribs 11 may be three or more, and specifically, may be in accordance with actual requirements, and is not limited thereto. In addition, taking the reinforcing rib 11 provided on the bottom surface of the top plate 1 as an example, the diameter of the reinforcing rib 11 may be different in the process of extending the reinforcing rib 11 in the front-rear direction, so that the structural strength of the top plate 1 may be specifically enhanced according to the jacking force receiving position of the top plate 1.

Jacking device 2 is located between roof 1 and the installation body, jacking device 2 includes first link assembly 21, first link assembly 21 includes first mount pad 211, first connecting rod 212 and second connecting rod 213, the one end of first connecting rod 212 is rotated with first mount pad 211 and is connected, the other end of first connecting rod 212 is rotated with the one end of first connecting rod 212 and is connected, the other end of second connecting rod 213 is rotated with roof 1 and is connected, therefore, when first connecting rod 212 and second connecting rod 213 rotate relatively, can be better change the distance between roof 1 and the installation body, that is, when needs roof 1 jacking object, can make roof 1 keep away from the installation body, when needs roof 1 to reduce the object, can make roof 1 be close to the installation body. It should be noted that, in the present application, the first link 212 is installed on the first installation seat 211, and the first installation seat 211 does not necessarily need to have an installation position, and therefore, the installation position of the first installation seat 211 is described herein by taking the installation body as an example, and therefore, it is understood that the installation body is only for convenience of describing the installation position of the first installation seat 211, and is not limited to the present application, that is, the installation body may also be a plate, and thus, the jacking mechanism 100 may be integrally installed on the installation body, and then the jacking mechanism 100 may be moved or assembled, and in addition, the installation body may also be a ground or a certain device, that is, the jacking device 2 may be directly installed on the ground or a certain device, and therefore, the installation body is not particularly limited herein.

The jacking device 2 further comprises a second connecting rod assembly 22 and an intermediate connecting rod 23, the first connecting rod assembly 21 and the second connecting rod assembly 22 are arranged between the top plate 1 and the mounting body at intervals, the second connecting rod assembly 22 comprises a second mounting seat 221, a third connecting rod 222 and a fourth connecting rod 223, one end of the third connecting rod 222 is hinged to the second mounting seat 221, the other end of the third connecting rod 222 is hinged to the fourth connecting rod 223, and the other end of the fourth connecting rod 223 is hinged to the top plate 1; both ends of the intermediate link 23 are hinged with the first link 212 and the third link 222, respectively, and/or both ends of the intermediate link 23 are hinged with the second link 213 and the fourth link 223, respectively. Therefore, as shown in fig. 1 and 2, the first link 212, the intermediate link 23, the third link 222 and the mounting body may form a quadrilateral structure, and the second link 213, the intermediate link 23, the fourth link 223 and the top plate 1 may form a quadrilateral structure, so that the first link assembly 21, the second link assembly 22 and the intermediate link 23 may form two upper and lower quadrilateral structures, and thus, when the first link 212 is driven to rotate, the lower quadrilateral structure may be deformed, and both the upper and lower quadrilateral structures may be deformed, so that the top plate 1 may ascend or descend.

Here, it should be noted that the first link 212 and the third link 222 may have the same length, and the second link 213 and the fourth link 223 may have the same length, so that the first link assembly 21, the second link assembly 22 and the middle link 23 may form two upper and lower parallelogram structures, and thus the top plate 1 may be stably lifted up or lowered down. The stability during the jacking is good, and the first link 212 and the second link 213 may not be equal in length, and the third link 222 and the fourth link 223 may not be equal in length, for example, the length of the first link 212 is greater than the length of the second link 213, or the length of the second link 213 is greater than the length of the first link 212. Of course, it is understood that the first link 212 and the third link 222 may also have different lengths, and the second link 213 and the fourth link 223 may also have different lengths according to actual requirements, for example, when the upward oblique jacking force is required, the first link 212 and the third link 222 and the second link 213 and the fourth link 223 may have different lengths, so as to meet the use requirement of raising one side of the object, and therefore, the present application is not limited thereto.

The driving device 3 is used for driving the first link 212 and/or the second link 213 to rotate the first link 212 and the second link 213 relatively, and the driving device 3 includes: the driving device comprises a driving piece, a driving block 35 and a driving rod 36, wherein the driving piece is in transmission connection with the driving block 35 so as to drive the driving block 35 to reciprocate along a straight line, one end of the driving rod 36 is in rotary connection with the driving block 35, and the other end of the driving rod 36 is in rotary connection with the first connecting rod 212 and/or the second connecting rod 213. Therefore, in the first example, the driving device 3 is used for driving the first link 212, and thus, when the top plate 1 needs to move upwards to lift an object, the driving piece can drive the driving block 35, so that the driving block 35 moves in a linear direction, and the driving rod 36 drives the first link 212 to rotate in a counterclockwise direction, so that the lower quadrangle deforms, after the lower quadrangle deforms, the upper quadrangle can also deform along with the lower quadrangle, so that the top plate 1 is lifted, and the process when the top plate 1 descends is substantially the same as this, which is not described herein again. In the second example, the driving device 3 is used for driving the second link 213, so that when the top board 1 is lifted, the driving member can drive the driving block 35 to move the driving block 35 in a linear direction, so that the driving rod 36 drives the first link 212 to rotate in a clockwise direction, the driving device 3 can deform the upper quadrangle and then the lower quadrangle follows the deformation, so that the top board 1 is lifted, and the process when the top board 1 is lowered is substantially the same, which is not described herein.

With regard to the above example, it should be noted that, since the angle between the first link 212 and the second link 213 is far from the driving rod 36, in the driving form shown in fig. 1, when the driving device 3 drives the first link 212, the first link 212 rotates counterclockwise, and when the driving link drives the second link 213, the second link 213 can rotate along the clockwise direction, but it is understood that when the driving device 3 drives the first link 212, the first link 212 can also rotate clockwise, and similarly, the second link 213 can rotate counterclockwise, and therefore, the rotation directions of the first link 212 and the second link 213 are not limited herein.

It should be noted that, in the present application, the driving device 3 is used to drive the first link assembly 21, but it should be understood that the driving device 3 may also drive the second link assembly 22, or the driving device 3 may drive both the first link assembly 21 and the second link assembly 22, and therefore, the present invention is not limited thereto.

Further, for the driving process of the driving device 3, for example, the driving member can drive the driving block 35 to move in the linear direction, so that the driving rod 36 drives the first link 212 to rotate in the clockwise direction, when the driving block 35 moves in the linear direction, the driving rod 36 can rotate between the driving block 35 and the first link 212, so as to better transmit the driving force of the driving block 35 to the first link 212, and for the related art, the first link 212 is directly driven to rotate by the motor, and the first link 212 is directly driven to rotate by the driving cylinder, the linear motion form of the driving block 35 can provide stable driving force, and in addition, the damage of the stress concentration occurring on the first link 212 to the first link 212 can be avoided, that is, the driving device 3 of the present application can not only provide stable driving force, but also better transition the driving force between the driving member and the first link 212, thereby improving the reliability of the jacking device 2.

Therefore, according to the jacking mechanism 100 of the embodiment of the utility model, when the driving block 35 moves in the linear direction, the driving rod 36 can rotate between the driving block 35 and the first connecting rod 212, so that the driving force of the driving block 35 can be better transmitted to the first connecting rod 212, the linear motion form of the driving block 35 can provide stable driving force, and in addition, the damage to the first connecting rod 212 caused by stress concentration on the first connecting rod 212 can be avoided, that is, the driving device 3 of the application can not only provide stable driving force, but also better transition the driving force between the driving element and the first connecting rod 212, so that the reliability of the jacking device 2 is improved.

In some embodiments of the present invention, the driving block 35 includes a body 351 and a mounting plate 352, the driving member is in transmission connection with the body 351, the mounting plate 352 is located at an end of the body 351 facing the driving rod 36 and extends towards the driving rod 36 to form a mounting slot with an opening facing the driving rod 36, and the driving rod 36 extends into the mounting slot and is in rotation connection with the mounting plate 352.

For example, as shown in fig. 1, the mounting plate 352 is provided with one, one mounting plate 352 is located at the rear side of the body 351 and extends towards the direction of the driving rod 36, thereby the body 351 and the mounting plate 352 can construct an "L" shaped structure, thereby a mounting groove is constructed at the corner of the "L" shaped driving block 35, the driving rod 36 can be rotatably connected with the mounting plate 352 in the mounting groove, here, it can be understood that when the top plate 1 jacks an object, because the rotational connection position of the first link assembly 21, the rotational connection position of the second link assembly 22, the rotational connection position between the first link 212 and the jacking device 2, and the rotational connection position of the jacking device 2 itself are easily damaged, and thus the damage occurs, and the driving rod 36 and the mounting plate 352 are used as a rotational connection structure for converting a linear driving force into a rotational driving force, the rotation hookup location between actuating lever 36 and the installation need bear the power of a plurality of not equidirectionals, thereby take place the damage easily, make actuating lever 36 be located the assembly groove in this application, can be when actuating lever 36 and the rotation junction of installation extension board 352 damage, actuating lever 36 can push up on body 351, thereby can make climbing mechanism 100 can not cause the jacking of jacking device 2 to the object to become invalid because of drive arrangement 3's damage, that is, the object can be jack-up by jacking device 2 all the time, and can not take place to collapse and drop, therefore, reinforcing climbing mechanism 100's reliability that can be better.

In some embodiments of the present invention, the driving device 3 further includes a guiding assembly, which is located between the driving block 35 and the mounting body to limit the moving direction of the driving block 35, that is, when the jacking mechanism 100 is mounted on the mounting body, the guiding assembly can be connected between the driving block 35 and the mounting body, so that the driving block 35 can stably move in a linear direction through the guiding of the guiding assembly, and the stability is good. Moreover, it can be understood that, because climbing mechanism 100 continuously receives the top pressure, and often the top pressure is great, therefore, conventional drive arrangement 3 often can take place the drive unstable when the drive, the drive structure takes place to rock, thereby influence the jacking effect, simultaneously, also make climbing device 2 take place the damage easily, and then cause climbing mechanism 100 to collapse, the object drops, give other people and equipment all cause the potential safety hazard, and this application is through setting up the direction subassembly between guide block and installation body, can be so that the guide block can provide more stable drive power, thereby improve climbing mechanism 100 security and stability.

Alternatively, the guide assembly comprises a slide rail 37 and a slide block 38 cooperating with the slide rail 37, one of the slide rail 37 and the slide block 38 being located on the driving block 35 and the other of the slide rail 37 and the slide block 38 being located on the mounting body. For example, as shown in fig. 1, the slide rail 37 may be mounted on the mounting body, and the slide rail 37 may be mounted on the driving block 35, so that when the driving block 35 is driven by the driving member to reciprocate in the linear direction, the movement of the driving block 35 is more stable by the cooperation of the slide rail 37 and the sliding block 38. The slide rail 37 may be attached to the driving block 35, and the slider 38 may be attached to the attachment body. In addition, in some examples, there may be a plurality of sliding blocks 38, a plurality of sliding blocks 38 are arranged at equal intervals, and a plurality of sliding rails 37 may also be arranged, and a plurality of sliding rails 37 are arranged side by side to further enhance the stability of the guiding.

In addition, the guiding assembly may be in the form of not only the sliding rail 37 and the sliding block 38, for example, the guiding assembly may be a guiding structure such as a guide rod and a guiding groove, or a drag chain, and here, the guiding assembly may be set according to actual requirements, and is not limited here. In addition, the guide assembly in the above example only includes the slide rail 37 and the slide block 38, and in some alternative examples, the arrangement may be increased, so that the guide assembly further includes a guide rail, a guide groove, or a drag chain, which is also not limited herein, and is increased according to the actual requirement.

In some embodiments of the present invention, the driving member may include a driving motor 31, a gear 33, and a rack 34 engaged with the gear 33, wherein the driving motor 31 is in transmission connection with the gear 33, and the rack 34 is located on the driving block 35. Therefore, the rotating force output by the driving motor 31 can be preferably converted into a driving force in a linear direction by the engagement of the gear 33 and the rack 34, and the stability is good and the output driving force is high.

Further, the tooth height, the tooth width and the tooth number of the gear 33 and the rack 34 can be set according to actual requirements, for example, the tooth number of the gear 33 and the rack 34 which are meshed with each other is large, the tooth width is small, and therefore, the moving speed of the driving block 35 can be reduced, and if the tooth width is large, the tooth number of the gear 33 and the rack 34 which are meshed with each other is small, and therefore, the moving speed of the driving block 35 can be increased, and in addition, the moving speed of the driving block 35 is related to the diameter of the gear 33, and therefore, the diameter of the gear 33 can be set. Further, the teeth on one rack 34 may have different tooth heights and tooth widths, so that the jacking mechanism 100 may have different jacking speeds during jacking, thereby meeting different use requirements of users. Therefore, the jacking mechanism 100 can obtain different jacking speeds and jacking forces of the top plate 1 only by designing the gear 33 and the rack 34 according to actual requirements, and the functionality is improved well.

In a specific embodiment, when lifting an object, it is often necessary to make the top plate 1 move to the bottom of the object quickly, then the top plate 1 slowly reduces the upward lifting speed in the process of contacting the object, then the top plate 1 finally lifts up at a slower speed, and therefore, according to this requirement, the tooth height and tooth width of the gear 33 and the rack 34 can be designed, which can be realized.

Optionally, a speed reducer 32 is further disposed between the driving motor 31 and the gear 33, and the speed reducer 32 can reduce the rotation speed output by the driving motor 31 and increase the torque output by the driving motor 31, so as to better improve the upward lifting force of the top plate 1.

In some embodiments of the present invention, the jacking mechanism 100 further includes a guiding device 4, the guiding device 4 includes a third mounting seat 41 and a pull rod 42, two ends of the pull rod 42 are respectively hinged to the top plate 1 and the third mounting seat 41, wherein a plane of a rotation direction of the pull rod 42 is parallel to a plane of a rotation direction of the first connecting rod 212 or the second connecting rod 213. Here, it is understood that the structure for transmitting the lifting force in the present application is a link structure, specifically, the first link 212 and the second link 213, the third link 222 and the fourth link 223, and taking the first link 212 and the second link 213 as an example, when the first link 212 and the second link 213 rotate to a certain angle, for example, an angle of 180 degrees, that is, when the first link 212 and the second link 213 are collinear, the top plate 1 can be lifted to the highest position that can be reached, but the first link 212 and the second link 213 are easily unstable in the transverse direction during the relative rotation process, thereby causing the top plate 1 to shake in the transverse direction, where the transverse direction may refer to the direction in the plane of the top plate 1. And this application is through design guider 4, through roof 1 at the in-process of jacking, through pull rod 42 and third mount pad 41, can be better make roof 1 can upwards rotate around the rotation hookup location of pull rod 42 and third mount pad 41, and when rotating, roof 1 can remain the horizontality throughout, can not only satisfy the demand, still makes roof 1's activity comparatively stable.

It is understood that the guiding device 4 may also be formed by other structures, such as a guide rod and a guide groove, where the guide rod may be configured as a bent rod according to actual requirements, that is, a rod body with a certain curvature, the guide rod may be fixed on the mounting body, and the guide groove may be located on the top plate 1, so that during the process of lifting up the top plate 1, the guide of the top plate 1 may be achieved through the cooperation of the guide rod and the guide groove.

Alternatively, the tie rod 42 is rotatably connected to one end of the top plate 1, and the third mounting seat 41 is adjacent to the other end of the top plate 1. For example, as shown in fig. 1, the pull rod 42 is pivotally connected to the rear end of the top plate 1, and the third mounting seat 41 is adjacent to the front end of the top plate 1, and the length of the pull rod 42 in the front-rear direction is greater than that of the top plate 1 in fig. 1, so that the guide device 4 can better guide the top plate 1.

In addition, the pull rod 42 can also carry out spacing to roof 1 to a certain extent, here, it can be understood that roof 1 can have certain coincidence with the rotation of pull rod 42 in the process of jacking up through first pull rod 42 subassembly and second pull rod 42 subassembly, after roof 1 rotates to certain angle, take place to interfere between pull rod 42 and first pull rod 42 subassembly, the second pull rod 42 subassembly respectively, thereby make roof 1 can't continue to jack up under the interference, so that roof 1 is in effectual jacking within range all the time.

Optionally, the number of the guide devices 4 is multiple, the multiple guide devices 4 are symmetrically arranged on two sides of the top plate 1, for example, as shown in fig. 1, two guide devices 4 are arranged on the left and right sides of the top plate 1, respectively, so that the top plate 1 is guided on the left and right sides of the top plate 1 in the jacking process, and the top plate 1 has better stability. It is understood that the guiding device 4 can be set according to actual requirements, as long as the guiding of the top plate 1 can be satisfied, and the description is omitted here.

In some embodiments of the present invention, a plurality of first link assemblies 21, a plurality of second link assemblies 22, and a plurality of intermediate links 23 are provided, and the intermediate links 23, the first link assemblies 21, and the second link assemblies 22 correspond to one another. For example, as shown in fig. 1, two first link assemblies 21, two second link assemblies 22 and two middle links 23 are provided, so that each first link assembly 21, each second link assembly 22 and each middle link 23 form a set of jacking link groups, and the two sets of jacking link groups can be respectively located at the left and right sides of the top plate 1, so as to jack the top plate 1 more stably. However, it is understood that when three or more than three first link assemblies 21, second link assemblies 22 and intermediate links 23 are provided, the upward jacking force can be better lifted, so that the number of jacking link groups can be increased according to the actual jacking requirement.

Alternatively, when multiple sets of jacking link sets are provided, the driving device 3 may drive only the first links 212 of one set of jacking link set, may drive the first links 212 of each set of jacking link set, or may drive one first link 212 every other jacking link set, where there may be no specific limitation according to actual requirements.

In some embodiments of the present invention, the first link 212 and the second link 213 are both rotatably connected to the first pin 214, the third link 222 and the fourth link 223 are both rotatably connected to the second pin 224, and both ends of the middle link 23 are rotatably connected to the first pin 214 and the second pin 224, respectively. From this, can make the jacking device 2 of this application comparatively simple, and transmission effect is better when driving, can also reduce the assembly degree of difficulty to a certain extent.

In some embodiments of the present invention, the first link assembly 21, the second link assembly 22 and the guiding device 4 are respectively mounted on the mounting body through the first mounting seat 211, the second mounting seat 221 and the third mounting seat 41, so that the mounting positions of the first mounting seat 211, the second mounting seat 221 and the third mounting seat 41 can be designed according to actual requirements, and at this time, only the lengths of the intermediate link 23 and the pull rod 42 need to be modified, or the intermediate link 23 and the pull rod 42 with different lengths need to be replaced, so that the top plate 1 has different jacking heights, and the top plate has a simple structure and is convenient to operate, and the application range of the jacking mechanism 100 can be increased to a certain extent, and is highly functional.

In some alternative examples of the present invention, the jacking mechanism 100 further includes a limiting device, which is used to limit the relative position of the driving block 35, for example, during the driving block 35 is driven by the driving member to reciprocate in a linear direction, the driving rod 36 can drive the first link 212 to rotate, when the first link 212 drives the second link 213 to rotate to a certain angle, for example, the angle between the first link 212 and the second link 213 is 180 degrees, while the first link 212 and the second link 213 are collinear, the third link 222 and the fourth link 223 may also be in collinear positions, when the driving block 35 continues to move, the included angle between the first link 212 and the second link 213 is easily made to exceed 180 degrees, while the included angle between the third link 222 and the fourth link 223 also exceeds 180 degrees, for example, as shown in fig. 1, the opening of the included angle between the third link 222 and the fourth link 223 faces backwards, that is, the third link 222 and the fourth link 223 are hidden under the top plate 1, however, when the included angle between the third link 222 and the fourth link 223 exceeds 180 °, there is a high possibility that the opening of the included angle between the third link 222 and the fourth link 223 is made to be forward, so that the third link 222 and the fourth link 223 are exposed outside the top plate 1, which not only makes the third link 222 and the fourth link 223 easily interfere with other objects, but also makes the third link 222 and the fourth link 223 easily expose outside, thereby causing unnecessary damage, therefore, based on this, a limiting device may be provided in the present application, so that the driving block 35 moves within a certain range, and thus, the first link 212 and the third link 222 are not rotated excessively, thereby causing damage to the first link assembly 21 and the second link assembly 22.

A jacking mechanism 100 according to an embodiment of the present invention is described below with reference to fig. 1-3.

The jacking mechanism 100 comprises a top plate 1, a jacking device 2 and a driving device 3, wherein the top plate 1 is a rectangular plate, the middle part of the top plate 1 is provided with a hollow structure, two reinforcing ribs 11 extending along the front-back direction are arranged on the bottom surface of the top plate 1, the two reinforcing ribs 11 are spaced along the left-right direction, the jacking device 2 is positioned between the top plate 1 and an installation body, the jacking device 2 comprises a first connecting rod assembly 21, the first connecting rod assembly 21 comprises a first installation seat 211, a first connecting rod 212 and a second connecting rod 213, one end of the first connecting rod 212 is rotatably connected with the first installation seat 211, the other end of the first connecting rod 212 is rotatably connected with one end of the first connecting rod 212, the other end of the second connecting rod 213 is rotatably connected with the top plate 1, the jacking device 2 further comprises a second connecting rod assembly 22 and an intermediate connecting rod 23, the first connecting rod assembly 21 and the second connecting rod assembly 22 are spaced between the top plate 1 and the installation body, and the second connecting rod assembly 22 comprises a second installation seat 221, One end of the third connecting rod 222 is hinged with the second mounting seat 221, the other end of the third connecting rod 222 is hinged with the fourth connecting rod 223, and the other end of the fourth connecting rod 223 is hinged with the top plate 1; the first link 212 and the second link 213 are both rotationally connected to the first pin 214, the third link 222 and the fourth link 223 are both rotationally connected to the second pin 224, and both ends of the middle link 23 are rotationally connected to the first pin 214 and the second pin 224, respectively. The first link 212 and the third link 222 may have the same length, and the second link 213 and the fourth link 223 may have the same length, so that the first link assembly 21, the second link assembly 22 and the middle link 23 may form two upper and lower parallelogram structures.

The first link assembly 21, the second link assembly 22, and the guide 4 are mounted on the mounting body through the first mounting seat 211, the second mounting seat 221, and the third mounting seat 41, respectively.

The drive device 3 includes: the driving device comprises a driving piece, a driving block 35 and a driving rod 36, wherein the driving piece is in transmission connection with the driving block 35 so as to drive the driving block 35 to reciprocate along a straight line, one end of the driving rod 36 is rotatably connected with the driving block 35, and the other end of the driving rod 36 is rotatably connected with a first pin shaft 214.

The driving block 35 includes a body 351 and a mounting plate 352, one mounting plate 352 is provided at the rear side of the body 351 and extends towards the driving rod 36, so that the body 351 and the mounting plate 352 can construct an "L" shaped structure, and thus, a mounting groove is constructed at the corner of the "L" shaped driving block 35, and the driving rod 36 can be rotatably connected with the mounting plate 352 in the mounting groove.

The driving device 3 further comprises a guiding assembly, the guiding assembly comprises a sliding rail 37 and a sliding block 38 matched with the sliding rail 37, the sliding rail 37 can be installed on the installation body, the sliding rail 37 can be installed on the driving block 35, and therefore when the driving block 35 is driven by the driving piece to reciprocate in the linear direction, the movement of the driving block 35 can be more stable through the matching of the sliding rail 37 and the sliding block 38.

The driving member may include a driving motor 31, a reducer 32, a gear 33, and a rack 34 engaged with the gear 33, wherein the driving motor 31 is in transmission connection with the gear 33, and the rack 34 is located on a driving block 35.

The jacking mechanism 100 further comprises a guide device 4, the guide device 4 comprises a third mounting seat 41 and a pull rod 42, two ends of the pull rod 42 are respectively hinged with the top plate 1 and the third mounting seat 41, and a plane of a rotation direction of the pull rod 42 is parallel to a plane of a rotation direction of the first connecting rod 212 or the second connecting rod 213.

First link assembly 21, second link assembly 22 and middle connecting rod 23 all are equipped with two, and from this, every first link assembly 21, every second link assembly 22 and every middle connecting rod 23 construct a set of jacking linkage, and two sets of jacking linkage can be located the left and right sides of roof 1 respectively to can carry out the jacking to roof 1 comparatively steadily.

Other constructions and operations of the jacking mechanism 100 according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

In the description herein, references to the description of the terms "some embodiments," "optionally," "further," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A jacking mechanism, comprising:

a top plate;

the jacking device is positioned between the top plate and the mounting body and comprises a first connecting rod assembly, a second connecting rod assembly and a middle connecting rod, the first connecting rod assembly and the second connecting rod assembly are arranged between the top plate and the mounting body at intervals, the first connecting rod assembly comprises a first mounting seat, a first connecting rod and a second connecting rod, one end of the first connecting rod is rotatably connected with the first mounting seat, the other end of the first connecting rod is rotatably connected with one end of the first connecting rod, and the other end of the second connecting rod is rotatably connected with the top plate; the second connecting rod assembly comprises a second mounting seat, a third connecting rod and a fourth connecting rod, one end of the third connecting rod is hinged with the second mounting seat, the other end of the third connecting rod is hinged with the fourth connecting rod, and the other end of the fourth connecting rod is hinged with the top plate; two ends of the middle connecting rod are respectively hinged with the first connecting rod and the third connecting rod, and/or two ends of the middle connecting rod are respectively hinged with the second connecting rod and the fourth connecting rod;

a driving device for driving the first link and/or the second link to rotate the first link and the second link relatively, the driving device comprising: driving piece, drive block and actuating lever, the driving piece with the drive block transmission is connected, in order to drive the drive block is along straight reciprocating motion, the one end of actuating lever with the drive block rotates to be connected, the other end of actuating lever with first connecting rod and/or the second connecting rod rotates to be connected.

2. The jacking mechanism as claimed in claim 1, wherein the driving block includes a body and a mounting plate, the driving member is in driving connection with the body, the mounting plate is located at an end of the body facing the driving rod and extends towards the driving rod to form a mounting groove with an opening facing the driving rod, and the driving rod extends into the mounting groove and is in rotational connection with the mounting plate.

3. The jacking mechanism of claim 1, wherein the drive arrangement further includes a guide assembly located between the drive block and the mounting body to limit the direction of movement of the drive block.

4. The jacking mechanism of claim 3, wherein the guide assembly comprises: the sliding rail and the sliding block are matched with the sliding rail, one of the sliding rail and the sliding block is positioned on the driving block, and the other of the sliding rail and the sliding block is positioned on the mounting body.

5. The jacking mechanism of claim 1, wherein the driving member includes a driving motor, a gear, and a rack engaged with the gear, the driving motor is in driving connection with the gear, and the rack is located on the driving block.

6. The jacking mechanism of claim 1, further comprising a guide, the guide comprising: the two ends of the pull rod are hinged to the top plate and the third mounting seat respectively, and the plane of the rotation direction of the pull rod is parallel to the plane of the rotation direction of the first connecting rod or the second connecting rod.

7. The jacking mechanism of claim 6, wherein the pull rod is pivotally connected to one end of the top plate, and the third mounting block is adjacent to the other end of the top plate.

8. The jacking mechanism of claim 6, wherein a plurality of said guides are provided, and a plurality of said guides are symmetrically provided on both sides of said top plate.

9. The jacking mechanism of claim 1, wherein a plurality of first link assemblies, a plurality of second link assemblies and a plurality of intermediate links are provided, and wherein the intermediate links, the first link assemblies and the second link assemblies are in one-to-one correspondence.

10. The jacking mechanism of claim 1, wherein the first connecting rod and the second connecting rod are both rotatably connected to a first pin, the third connecting rod and the fourth connecting rod are both rotatably connected to a second pin, and both ends of the intermediate connecting rod are rotatably connected to the first pin and the second pin, respectively.

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