阅读说明：本技术 一种用丝杆带动四连杆机构推动花瓣同步运行的机械花 (Mechanical flower with petal synchronous operation driven by four-bar mechanism through lead screw ) 是由 彭浩舸 张鸣 陈乐尧 黄麓升 李佳城 康家俊 卜湘军 于 2021-07-12 设计创作，主要内容包括：本发明涉及机械技术领域,且公开了一种用丝杆带动四连杆机构推动花瓣同步运行的机械花,包括花瓣组件、固定组件和PAC控制。该一种用丝杆带动四连杆机构推动花瓣同步运行的机械花,本发明根据桂花的生长环境以及展示的美观,利于多组同步将其滑块的滑动转化为跟其花瓣固定连杆的转动,从而实现将其多组花瓣同步进行开闭,从而实现用一根丝杆同时带动四个连杆机构推动花瓣同步运行的机械花装置,可以实现缓慢开放,更能体现花的真实性,丝杆推动承重力大,可适用其他不同的花瓣,本发明与现有仿生花相比,本发明采用丝杆带动连杆推动花瓣,可以对行程精准把控,本发明还通过设置丝杆,可以实现机构自锁,同时本发明更加稳固和更加安全。(The invention relates to the technical field of machinery, and discloses a mechanical flower with petals driven by a lead screw to synchronously operate by a four-bar mechanism, which comprises a petal assembly, a fixing assembly and PAC control. The mechanical flower driven by the lead screw to drive the four-bar mechanism to push the petals to synchronously operate is beneficial to synchronously converting the sliding of the sliding blocks into the rotation of the connecting rods fixed with the petals according to the growth environment and the display attractiveness of sweet osmanthus, so that the multiple groups of petals can be synchronously opened and closed, the mechanical flower device driven by one lead screw to simultaneously drive the four connecting bar mechanisms to push the petals to synchronously operate can realize slow opening and reflect the authenticity of the flower, and the lead screw has high pushing bearing capacity and is suitable for other different petals.)

1. The utility model provides a drive four bar linkage with lead screw and promote petal synchronous operation's mechanical flower, includes petal subassembly (1), fixed subassembly and PAC control, its characterized in that: the fixed assembly can be subdivided into four small assemblies, the upper plate assembly (2), the sliding block assembly (5), the lower plate assembly (4) and the supporting assembly (3), the upper plate assembly (2) comprises an upper plate (201), an upper bearing seat (202), a joint bearing (203), an upper pressing plate (204), a locking nut (205), an upper bearing seat mounting bolt (206), a pressing plate mounting bolt (207), a spring flat pad A (208), a spring flat pad B (209) and a connecting rod (6), the upper plate (201) is mainly used for mounting petals and locking other outsourcing parts and a guide rod (14), the sliding block assembly (5) comprises a sliding block (501) and a mounting bolt (503), the sliding block (501) is provided with a ball nut (504) and a linear bearing (502) and used for driving the connecting rod (6) on the sliding block (501) to push the petals, the lower plate assembly (4) comprises a lower plate (401), a lower bearing seat (402), The support assembly comprises a lower pressing plate (403), a pressing bolt (404), a lower bearing seat mounting bolt (405), a guide rod (14) and a screw rod (7), wherein the lower pressing plate (401) is used for bearing the whole support assembly and integrally connecting and electrically controlling the whole support assembly, the support assembly (3) is mainly a welding piece of a section of square steel, the support assembly (3) comprises square steel (301), an upper plate (302), a lower plate (302) and a rib plate (303), the support assembly (3) is used for connecting the upper plate assembly (2) and the lower plate assembly (4), the PAC control comprises a motor (13), and the PAC control motor (13) automatically operates to enable the PAC control motor to automatically rotate forwards and reversely.

2. The mechanical flower driven by the screw rod to drive the four-bar mechanism to push the petals to synchronously run according to the claim 1, is characterized in that: the lower plate (401) of the lower plate component (4) of the fixing component is circular, the lower plate (401) is fixedly installed through expansion bolts, and the lower plate (401) can be connected with plane walls such as the ground and a wall.

3. The mechanical flower driven by the screw rod to drive the four-bar mechanism to push the petals to synchronously run according to the claim 1, is characterized in that: the screw rod (7) is located at the centers of the upper plate (201), the lower plate (401) and the sliding block (501), the shaft diameters of two ends of the screw rod (7) are the same at the positions of bearings, the screw rod (7) and the motor (13) are connected through a coupler to realize synchronous rotation, and the screw rod (7) drives the sliding block (501) to move up and down.

4. The mechanical flower driven by the screw rod to drive the four-bar mechanism to push the petals to synchronously run according to the claim 1, is characterized in that: the sliding block (501) is provided with a ball nut (503) and four connecting rods (6), and the four connecting rods (6) are driven by the sliding block (501) up and down to drive the petals to open and close.

5. The mechanical flower driven by the screw rod to drive the four-bar mechanism to push the petals to synchronously run according to the claim 1, is characterized in that: connecting rod one end of connecting rod (6) links to each other with slider (501), and connecting rod (6) other end links to each other with petal subassembly (1), and connecting rod (6) can be according to the mounted position regulation length of petal.

6. The mechanical flower driven by the screw rod to drive the four-bar mechanism to push the petals to synchronously run according to the claim 1, is characterized in that: the upper plate assembly (2), the lower plate assembly (4), the sliding block assembly (5) and the supporting assembly (3) are connected into a whole by the supporting assembly (3), a series of mechanical parts such as the sliding block assembly (5) are clamped inside the supporting assembly (3), an upper bearing seat (202) and a lower bearing seat (402) of the upper plate assembly (2) and the lower plate assembly (4) are used for supporting two ends of a screw rod (7), the upper plate and the lower plate (302) are fixed by the supporting plate, and the screw rod (7) of the supporting assembly (2) drives a ball nut (15) of a sliding block (501) to move up and down.

7. The mechanical flower driven by the screw rod to drive the four-bar mechanism to push the petals to synchronously run according to the claim 1, is characterized in that: the guide rod (14) conducts the upper plate (201), the lower plate (401) and the sliding block (501), a linear bearing (502) is further mounted on the sliding block (501), and the sliding (501) friction of the linear bearing (502) is changed into rolling friction.

8. The mechanical flower driven by the screw rod to drive the four-bar mechanism to push the petals to synchronously run according to the claim 1, is characterized in that: the lower plate assembly (4) is controlled by the PAC, the lower plate (401) is used for mounting the motor (13), the motor (13) is controlled by the PAC, and the motor (13) can run autonomously and can run in a reciprocating mode in a specified stroke.

9. The mechanical flower driven by the screw rod to drive the four-bar mechanism to push the petals to synchronously run according to the claim 1, is characterized in that: the upper plate component (2) of the fixed component fixes the joint bearing (203) of the petal component and the top end of the upper plate component (2) is provided with a stop nut (11) for limiting.

10. The mechanical flower driven by the screw rod to drive the four-bar mechanism to push the petals to synchronously run according to the claim 1, is characterized in that: the PAC control can change the inherent stroke of the petal assembly (1) according to the style of the petal assembly (1) and can be adjusted in real time, the guide rod (14) is axially limited by the upper plate assembly (2) and the lower plate assembly (4) of the fixing assembly, the upper pressing plate (204) and the lower pressing plate (403) of the upper plate assembly (2) and the lower plate assembly (4), and the guide rod (14) is fixed by the locking nut (205) of the upper plate (201).

Technical Field

The invention relates to the technical field of machinery, in particular to a mechanical flower which uses a lead screw to drive a four-bar mechanism to push petals to synchronously run.

Background

The osmanthus fragrans is a city flower of the Guilin, is visible everywhere in the Guilin city, has become a symbol and a landscape representative of the Guilin city, and is also a valuable landscape resource and culture symbol of the Guilin city. Guilin is a famous tourist city, with beautiful landscape and many historic sites, and has a theory of Guilin Shanshui Jia in the world. The osmanthus fragrans is visible everywhere in the Guilin city, so that the osmanthus fragrans in the street full of roads in the Guilin city have fragrance, and are refreshing. The name source of Guilin city is also said to be taken from the meaning of Guilin forest, the Osmanthus fragrans is promoted to be the city flower, and it is sufficient that the importance degree of Osmanthus fragrans in the plant system of thousand-year old city in Guilin is incomparable with the psychological cognition of people. The osmanthus plays an extremely important role in landscape construction and city image construction in Guilin city, and simultaneously, the osmanthus can also emit youthful vigor in the city; the method not only can make the people who travel or seek for learning from outside feel happy, but also can increase the pleasure of common people in Guilin city in life and improve the happiness of the people in Guilin city. Therefore, a local museum provides a mechanical flower for external display, and the mechanical flower is difficult to solve not only for the installation, the stress of internal components and the way of opening and closing the petals of the sweet osmanthus at the same time. Therefore, a mechanical flower with petals driven by a four-bar mechanism driven by a screw rod to synchronously operate is provided.

Disclosure of Invention

The invention mainly solves the technical problems in the prior art and provides a mechanical flower which uses a lead screw to drive a four-bar mechanism to push petals to synchronously run.

In order to achieve the purpose, the invention adopts the following technical scheme that the mechanical flower for driving the four-bar linkage mechanism to push the petals to synchronously run by the lead screw comprises a petal assembly, a fixing assembly and PAC control, wherein the fixing assembly can be subdivided into four small assemblies, an upper plate assembly, a sliding block assembly, a lower plate assembly and a supporting assembly, the upper plate assembly comprises an upper plate, an upper bearing seat, a joint bearing, an upper pressing plate, a locking nut, an upper bearing seat mounting bolt, a tabletting mounting bolt, a flattening pad A, a flattening pad B and a connecting rod, the upper plate is mainly used for mounting the petals and locking other outsourced parts and a guide rod, the sliding block assembly comprises a sliding block and a mounting bolt, a ball nut and a linear bearing are mounted on the sliding block and used for driving the connecting rod on the sliding block to push the petals, the lower plate assembly comprises a lower plate, a lower bearing seat, a lower pressing plate, a tabletting bolt, a lower bearing seat mounting bolt, a sliding block and a sliding block, The support assembly is used for connecting the upper plate assembly and the lower plate assembly, the PAC control comprises a motor, and the PAC control motor controls the motor to operate automatically to rotate forwards and backwards.

Preferably, the lower plate assembly of the fixing assembly is circular, the lower plate is fixedly installed through expansion bolts, and the lower plate can be connected with plane walls such as the ground and the wall.

Preferably, the screw rod is positioned at the center of the upper plate, the lower plate and the sliding block, the two ends of the screw rod are supported at the bearings, the shaft diameters of the two ends of the screw rod are the same, the screw rod is connected with the motor through the coupler to realize synchronous rotation, and the screw rod drives the sliding block to move up and down.

Preferably, the sliding block is provided with a ball nut and four connecting rods, and the four connecting rods are driven by the sliding block up and down to drive the petals to open and close.

Preferably, one end of a connecting rod of the connecting rod is connected with the sliding block, the other end of the connecting rod is connected with the petal assembly, and the length of the connecting rod can be adjusted according to the installation position of the petals.

Preferably, the upper plate assembly, the lower plate assembly, the sliding block assembly and the supporting assembly are connected into a whole by the supporting assembly, a series of mechanical parts such as the sliding block assembly are clamped in the supporting assembly, the upper bearing seat and the lower bearing seat of the upper plate assembly and the lower plate assembly are used for supporting two ends of a screw rod, and the upper plate and the lower plate are fixed by the supporting plate so that the screw rod drives a ball nut of the sliding block to move up and down.

Preferably, the guide rod conducts the upper plate, the lower plate and the sliding block, and the sliding block is further provided with a linear bearing, and sliding friction of the linear bearing is changed into rolling friction by the linear bearing.

Preferably, the lower plate assembly is controlled by the PAC, the lower plate is used for installing a motor, and the motor is controlled by the PAC to operate autonomously and run in a reciprocating mode in a specified stroke.

Preferably, the upper plate assembly of the fixing assembly fixes the joint bearing of the petal assembly and is provided with a stop nut at the top end thereof for limiting.

Preferably, the PAC control is adjustable in real time by varying the intrinsic stroke of the petal assemblies according to the style of the petal assemblies.

Preferably, the guide rod is axially limited by an upper plate assembly and a lower plate assembly of the fixing assembly, an upper pressure plate and a lower pressure plate of the upper plate assembly and the lower plate assembly, and the guide rod is fixed by a locking nut of the upper plate.

Preferably, the lower plate is not limited to a circular shape, and may be adjusted according to the existing installation conditions, and the slider may be changed according to the number of petals, and may be installed not only in a built-in manner, but also on a plane.

Preferably, the screw rod is connected with the motor through a coupling, and the motor is connected to the base plate through four bolts and is adjusted according to the length of the output shaft of the motor.

Advantageous effects

The invention provides a mechanical flower which uses a lead screw to drive a four-bar mechanism to push petals to synchronously run. The method has the following beneficial effects:

(1) the mechanical flower device is beneficial to synchronously converting the sliding of the sliding blocks into the rotation of the petal fixing connecting rods by a plurality of groups according to the growth environment and the attractiveness of display of sweet osmanthus, so that the plurality of groups of petals are synchronously opened and closed, and the mechanical flower device simultaneously driving the four connecting rod mechanisms to push the petals to synchronously operate by one lead screw is realized, slow opening can be realized, the authenticity of the flower can be reflected, and the lead screw pushing bearing capacity is high, so that the mechanical flower device is suitable for other different petals.

(2) Compared with other mechanical flowers directly driven by connecting rods, the mechanical flower has the advantages that the connecting rods are driven by the lead screws to push the petals, so that the stroke can be accurately controlled.

(3) The knuckle bearing is used for mounting a pedal assembly, plays a role in lubricating a revolute pair, so that the friction force of the revolute pair is reduced, and meanwhile, the connecting parts of the connecting rods cannot be clamped on the revolute pair, so that the mechanism is guaranteed to stably and synchronously run, and the display efficiency of the mechanical flower with the petal synchronous running driven by the four-connecting-rod mechanism is improved.

(4) The linear bearing has the advantages that the whole sliding block assembly is arranged on the two guide rods, the sliding block cannot rotate, the sliding block can be guided to move up and down, the bending strength of the whole block plate is improved, and the use strength of the mechanical flower with the four-bar linkage mechanism for pushing the petals to synchronously run is improved.

(5) According to the mechanical flower with the petals synchronously operating by driving the four-bar mechanism through the lead screw, the knuckle bearing is mounted with the connecting bar in an adjustable length mode, the whole sliding block assembly is connected with a rotating pair of the connecting bar, the sliding block is designed in a shape meeting the requirements of mounting and strength of each part, and the design of light weight is achieved.

(6) According to the mechanical flower for driving the four-bar mechanism to push the petals to synchronously run by the lead screw, the supporting assembly is arranged, the device is an integral welding part, the upper plate and the lower plate are drilled with six bolt holes so as to be fixed on the upper plate assembly and the lower plate assembly, and the two ends of the upper plate and the lower plate are also welded with the rib plates for strengthening, so that the service strength of the mechanical flower for driving the petals to synchronously run by the four-bar mechanism is improved, and the service life of the integral mechanical flower is prolonged.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.

FIG. 1 is a schematic view of a complete closed flower structure of the present invention;

FIG. 2 is a schematic view of the full flowering configuration of the present invention;

FIG. 3 is a schematic view of an upper plate assembly of the present lighting system;

FIG. 4 is a schematic view of a slider assembly of the present invention;

FIG. 5 is a schematic view of a lower plate assembly of the present invention;

FIG. 6 is a schematic view of a support assembly of the present invention.

Illustration of the drawings:

1. a petal assembly; 2, mounting the plate assembly; 201. an upper plate; 202. an upper bearing seat; 203. a knuckle bearing; 204. an upper pressure plate; 205. locking the nut; 206. mounting a bolt on the upper bearing block; 207. a bolt is installed on the pressing sheet; 208. a leveling pad A; 209. a leveling pad B; 3. a support assembly; 301. square steel; 302. an upper plate and a lower plate; 303. a rib plate; 4. a lower plate assembly; 401. a lower plate; 402. a lower bearing seat; 403. a lower pressing plate; 404. installing a pressing bolt; 405. a bolt is installed on the lower bearing seat; 5. a slider assembly; 501. a slider; 502. a linear bearing; 503. installing a bolt; 504. a ball nut; 6. a connecting rod; 7. a screw rod; 11. a stop nut; 13. a motor; 14. a guide rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): a mechanical flower with petals driven by a lead screw to drive a four-bar linkage mechanism to push petals to synchronously run is disclosed in figures 1-6 and comprises a petal assembly 1, a fixing assembly and a PAC control, wherein the fixing assembly can be subdivided into four small assemblies, an upper plate assembly 2, a slider assembly 5, a lower plate assembly 4 and a support assembly 3, the upper plate assembly 2 comprises an upper plate 201, an upper bearing seat 202, a joint bearing 203, an upper pressing plate 204, a locking nut 205, an upper bearing seat mounting bolt 206, a pressing sheet mounting bolt 207, a flattening pad A208, a flattening pad B209 and a connecting rod 6, the upper plate 201 is mainly used for mounting petals and other outsourced parts and locking a guide rod 14, the slider assembly 5 comprises a slider 501 and a mounting bolt 503, the slider 501 is provided with a ball nut 504 and a linear bearing 502 and is used for driving the connecting rod 6 on the slider 501 to push the petals, the lower plate assembly 4 comprises a lower plate 401, a lower bearing seat 402, a lower pressing plate 403 and a pressing sheet bolt 404, The lower bearing seat mounting bolt 405, the guide rod 14 and the screw rod 7, the lower plate 401 is used for the whole stress of the invention and the integral connection and electric control mounting, the support assembly 3 is mainly a welding piece of a section of square steel, the support assembly 3 comprises square steel 301, an upper lower plate 302 and a rib plate 303, the support assembly 3 is used for connecting the upper plate assembly 2 and the lower plate assembly 4, the PAC control comprises a motor 13, the PAC control motor 13 automatically operates to enable the lower plate assembly 4 to automatically rotate forwards and backwards, the lower plate 401 of the fixed assembly is circular, the lower plate 401 is fixedly mounted through an expansion bolt, the lower plate 401 can be connected with plane walls such as the ground and a wall, the screw rod 7 is positioned at the centers of the upper plate 201, the lower plate 401 and the slide block 501, the two ends of the screw rod 7 are supported at the same shaft diameter at the bearing position, the screw rod 7 and the motor 13 are connected through a coupler to realize synchronous rotation, the screw rod 7 drives the slide block 501 to move up and down, the slide block 501 is provided with a ball nut 503 and a connecting rod 6, the number of the connecting rods 6 is four, the four connecting rods 6 are driven by the sliding block 501 up and down to drive the petals to open and close, one end of each connecting rod 6 is connected with the sliding block 501, the other end of each connecting rod 6 is connected with the petal assembly 1, the length of each connecting rod 6 can be adjusted according to the installation position of the petals, the upper plate assembly 2, the lower plate assembly 4, the sliding block assemblies 5 and the supporting assemblies 3 are connected into a whole by the supporting assemblies 3, a series of mechanical parts such as the sliding block assemblies 5 are clamped inside the mechanical parts, the upper bearing seats 202 and the lower bearing seats 402 of the upper plate assembly 2 and the lower plate assembly 4 are used for supporting two ends of the screw rod 7, the upper plate 302 and the lower plate 302 are fixed by the supporting plates, the screw rod 7 drives the ball nuts 15 of the sliding block 501 to move up and down, the guide rod 14 conducts the upper plate 201, the lower plate 401 and the sliding block 501, the sliding block 501 is further provided with the linear bearing 502, and the linear bearing 502 enables the sliding 501 to be changed into rolling friction, the lower plate assembly 4 is controlled by a PAC (programmable controller), the lower plate 401 is used for installing a motor 13, the motor 13 is controlled by the PAC to enable the motor 13 to operate autonomously and run back and forth in a specified stroke, the upper plate assembly 2 of the fixed assembly, the upper plate assembly 2 fixes the joint bearing 203 of the petal assembly and the top end of the upper plate assembly is provided with a stop nut 11 for limiting, the PAC control can be controlled according to the style of the petal assembly 1 to change the inherent stroke and can be adjusted in real time, the upper plate assembly 2 and the lower plate assembly 4 of the fixed assembly, the upper pressing plate 204 and the lower pressing plate 403 of the upper plate assembly 2 and the lower plate assembly 4 axially limit the guide rod 14, the locking nut 205 of the upper plate 201 fixes the guide rod 14, the lower plate 401 is not limited to be circular and can be adjusted according to the existing installation conditions, the sliding block 501 can also be changed according to the number of petals and can not be limited to be installed in a built-in a plane or be arranged on a plane, the screw rod 7 is connected between the motors 13 through a coupler, the motor 13 is connected to the bottom plate through four bolts and is adjusted according to the length of an output shaft of the motor 13.

The working principle of the invention is as follows: the invention uses the rotation of a motor 13, the slide block 501 is provided with guide rods 14 and linear bearings 502 at two sides for guiding, thereby realizing the up-and-down movement of the sliding block 501, four grooves are milled on the periphery of the sliding block 501, the groove is used for installing the joint bearing 203, a hole is drilled on the side surface of the groove for installing the shaft, the shaft is fixedly installed with the sliding block 501 of the shaft, the design of a rotating pair of the sliding block 501 and the connecting rod 6 is realized, the joint bearing 203 is installed at the two ends of the connecting rod 6 and can be installed with adjustable length, the synchronous operation of the whole multi-group crank sliding block 501 mechanism is realized by adjusting the length, the petals are fixedly connected with one rocker of the petals, the rocker is arranged at the lower part of the petals, one end of the rocker is connected with the joint bearing 203 of the upper plate 201 through the rotating pair, one end of the rocker is connected with the connecting rod 6 with the adjustable length through the rotating pair, and the whole multi-group crank sliding block 501 mechanism is formed. Realize that the multiunit is synchronous converts its slider 501's slip into with the rotation of its petal fixed link 6 to realize carrying out the switching with its multiunit petal in step, thereby realize driving four connecting rod 6 mechanisms simultaneously with a lead screw 7 and promote the mechanical flower device of petal synchronous operation.

Fig. 3 is a schematic diagram of the upper plate assembly 2, the device is used for mounting a component on the upper plate 201, a blind hole is designed below the center of the upper plate 201 for mounting a bearing seat, the bearing seat and a bearing are used for supporting ends of the screw rod 7, one end of the screw rod 7 is directly assembled in the bearing to rotate, and the screw rod 7 of the supporting end is designed into a simple beam by the supporting end, so that the bending strength of the screw rod 7 is improved, and the stable and reliable operation of the mechanism is ensured. The upper plate 201 is provided with a joint bearing 203, a locking nut is arranged below the joint bearing 203, the joint bearing 203 can be installed and locked, and the joint bearing 203 and the upper plate 201 are fixed. The joint bearing 203 is used for mounting the petal assembly 1, and the joint bearing 203 plays a role in lubricating a rotating pair, thereby reducing the friction force of the rotating pair. The connecting parts of the connecting rods 6 are prevented from being blocked on the revolute pairs, so that the stable and synchronous operation of the mechanism is ensured. The upper plate 201 is designed to be a step hole at the position where the guide rod 14 is installed, the upper pressing plate 204 is provided with a threaded hole, and an adjusting bolt is installed on the threaded hole, so that the guide rod 14 is axially limited by the adjusting bolt, and the up-and-down movement of the sliding block 501 is ensured not to drive the guide rod 14 to move up and down.

FIG. 4 is a schematic view of a slider assembly 5, which uses a slider 501 as a mounting member, two linear bearings 502 are installed on two sides of the slider 501, the linear bearings 502 are used for mounting the slider assembly 5 on two guide rods 14 to ensure that the slider 501 does not rotate, guiding the slider 501 to move up and down and improving the bending strength of the whole slider 501, a through hole is drilled in the center of the slider 501 for fixedly mounting a nut and the slider assembly 5, the slider assembly 5 is provided with the guide rods 14 on two sides for guiding, the nut is assembled with a lead screw 7, the lead screw 7 is converted into the up and down movement of the nut when rotating, so as to realize the up and down movement of the slider 501, four grooves are milled on the periphery of the slider 501 for mounting a knuckle bearing 203, a hole is drilled on the side of the groove for mounting a shaft, and the shaft is fixedly installed with the slider 501, the shaft is in interference fit with the knuckle bearing 203, the knuckle bearing 203 is mounted with the connecting rod 6 of the knuckle bearing, the length of the whole sliding block assembly 5 is adjustable, the sliding block assembly is connected with a rotating pair of the connecting rod 6, and the sliding block 501 is designed in a shape meeting the mounting and strength requirements of all parts of the sliding block assembly, so that the sliding block assembly is light in weight.

Fig. 5 is a schematic diagram of a lower plate assembly 4, in the device, a lower plate 401 is provided with a component, a hole in the center of the lower plate 401 is provided with a bearing seat, the other end of a screw rod 7 is supported, the screw rod 7 rotates in a bearing, the supporting section is the same as the upper plate assembly 2, the bending strength of a simply supported beam is designed to be improved, so that smooth operation of the mechanism is achieved, a guide rod 14 is concentric with three plates (the upper plate 201, the lower plate 401 and a sliding block 501), so that a through hole is formed, and a step hole is drilled for positioning the guide rod 14, so that a pressure plate is used for limiting the guide rod 14. Considering the installation, six through holes for installing expansion bolts are drilled and fixed to be assembled with the support component 3, six holes matched with the through holes are drilled for installing the support component 3, and considering that the output shaft of the motor 13 is coaxially arranged with the shaft center of the screw rod 7 and is drilled according to the bearing seat, the motor 13 is installed on the lower plate component 4 through bolts.

Fig. 6 is a schematic view of the support assembly 3, which is an integral welding part, the middle square steel 301 is used as an intermediate part, the upper plate 302 and the lower plate 302 are welded at two ends thereof, six bolt holes are drilled on the upper plate 302 and the lower plate 302 to fix the upper plate assembly 2 and the lower plate assembly 4, and rib plates 303 are welded at two ends thereof for reinforcement.

The invention is beneficial to synchronously converting the sliding of the sliding block 501 into the rotation of the connecting rod 6 fixed with the petals according to the growth environment and the displayed beauty of the sweet osmanthus, thereby realizing the synchronous opening and closing of the plurality of groups of petals, realizing the mechanical flower device which simultaneously drives four connecting rod 6 mechanisms to push the petals to synchronously run by using one lead screw 7, realizing the slow opening, and further showing the authenticity of the flower, wherein the bearing capacity of the lead screw 7 for pushing is large, and the mechanical flower device is suitable for other different petals. The knuckle bearing 203 of the invention is used for mounting with the petal assembly 1, the knuckle bearing 203 plays a role in lubricating a revolute pair, thereby reducing the friction force of the revolute pair, simultaneously ensuring that the joint of each connecting rod 6 cannot be clamped on the revolute pair, thereby ensuring the stable and synchronous operation of the mechanism and improving the display efficiency of mechanical flowers for pushing petals to synchronously operate by the four-connecting-rod mechanism of the invention, the linear bearing 502 of the invention plays a role in mounting the whole sliding block assembly 5 on two guide rods 14, ensuring that the sliding block 501 cannot rotate, guiding the sliding block 501 to move up and down and improving the bending strength of the whole plate, thus improving the use strength of the mechanical flowers for pushing the petals to synchronously operate by the four-connecting-rod mechanism of the invention, the knuckle bearing 203 of the invention is mounted with the connecting rod 6 in an adjustable length, and realizing the connection of the whole sliding block assembly 5 and the revolute pair of the connecting rod 6, the slider 501 may be designed in a shape that satisfies the requirements for mounting and strength of the respective components, and is designed to be lightweight.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.