CN113092154A - Rotary experiment table with self-locking performance - Google Patents
Rotary experiment table with self-locking performance Download PDFInfo
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- CN113092154A CN113092154A CN202110432502.1A CN202110432502A CN113092154A CN 113092154 A CN113092154 A CN 113092154A CN 202110432502 A CN202110432502 A CN 202110432502A CN 113092154 A CN113092154 A CN 113092154A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
Abstract
The invention discloses a rotary experiment table with self-locking property, belongs to the field of adsorption force testing, and aims to solve the technical problems that in the prior art, the wall surface angle cannot be freely adjusted, the stability is poor, the force application angle of an adsorption device cannot be changed, and the experiment table with strong self-locking property is not available. Therefore, the side supporting plate and the rear fixing plate are vertically arranged to form the gantry structure, and the effect of stabilizing the experiment table is achieved; different wall surfaces can be fixed on the working surface of the rotating plate by fixing the rotating plate on the rotating shaft, so that the roughness of the wall surfaces is changed, and the adsorption force of the experiment table is enhanced; set up handle I and handle II on rotation regulation lead screw and removal regulation lead screw, rotation handle I and handle II drive rotor plate and pulley and remove, set up adsorption equipment on the experiment wall to the rotor plate, set up the couple to adsorption equipment again, through the relative position of change implementation power direction regulation pulley and rotor plate, realize the effect and the reverse stroke self-locking action of freely adjusting application of force angle and wall angle.
Description
Technical Field
The invention belongs to the field of adsorption force testing, and particularly relates to a rotary experiment table with self-locking performance.
Background
At present, in industries such as some high-altitude operations and pipeline detection, the operation task is often difficult to complete depending on manpower, and the appearance of the wall climbing robot greatly solves the problems. The adsorption and wall climbing capacity of the wall climbing robot on different wall surfaces are important indexes for evaluating the working performance, so that in the process of designing the robot, a large amount of experimental data needs to be obtained through testing to verify the performance of the robot, and no experimental equipment in the market is designed for detecting the adsorption force of an adsorption device. Therefore, it is necessary to design an experimental facility for measuring the adsorption capacity of the adsorption device on the surfaces with different angles or different materials.
Disclosure of Invention
In order to overcome the problems in the prior art, the invention aims to provide a rotary experiment table with self-locking performance, and aims to solve the technical problems that in the prior art, the wall surface angle cannot be freely adjusted, the stability is poor, the force application angle to an adsorption device cannot be changed, and the experiment table with strong self-locking performance is not provided.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention discloses a rotary experiment table with self-locking performance, which is characterized by comprising a gantry structure, an angle rotating mechanism and a pulley adjusting mechanism, wherein the gantry structure is provided with a first supporting plate and a second supporting plate;
the gantry structure comprises a rear fixing plate and two symmetrically arranged side supporting plates, a rotating shaft for milling a plane is fixed on each side supporting plate, a rotating plate is fixed on each rotating shaft, and the rear fixing plate is vertically fixed with the two side supporting plates;
the angle rotating mechanism is attached to the outer side of the side supporting plate, and the pulley adjusting mechanism is attached to the inner side of the side supporting plate;
the angle rotating mechanism comprises a rotating adjusting screw rod and a reciprocating mechanism, a screw rod nut is arranged on the rotating adjusting screw rod in a matched mode, the screw rod nut is fixedly connected with the reciprocating mechanism, and the reciprocating mechanism is fixedly connected with the rotating shaft to drive the rotating plate to rotate;
the pulley adjusting mechanism comprises a hoisting mechanism and a movable adjusting screw rod, the hoisting mechanism is positioned above the movable adjusting screw rod and fixedly connected with the movable adjusting screw rod, an experiment wall surface is arranged on the rotating plate, an adsorption device is arranged on the experiment wall surface, and the hoisting mechanism applies pulling force to the adsorption device;
the outside of rotation regulation lead screw is equipped with handle I, and the outside of removal regulation lead screw is equipped with handle II.
Preferably, the reciprocating mechanism comprises a gear, a rack and a rack fixing frame, the rack is fixed at the upper end of the rack fixing frame, and the lower end of the rack fixing frame is fixed on the screw nut;
the gear is meshed with the rack and fixedly connected with the rotating shaft.
Preferably, the gear is circumferentially fixed to one end of the rotating shaft, and the other end of the rotating shaft is axially fixed to the side support plate by a nut I.
Preferably, the rotating plate and the rotating shaft are fixed by screws, and the experiment wall surface mounted on the rotating plate and the rotating plate are fixed by screws.
Preferably, the hoisting mechanism comprises a pulley moving shaft, two pulley support rods, a pulley, a flexible cable and a hook, wherein the pulley moving shaft is attached to the side support plate, the pulley is fixed below the pulley moving shaft, the pulley moving shaft is fixedly connected with the upper ends of the pulley support rods, and the lower ends of the pulley support rods are fixedly connected with the movable adjusting screw rod;
the adsorption device is provided with a hook, one end of the flexible cable is connected with the hook during force application, and the other end of the flexible cable is connected with the tension tester by bypassing the pulley.
Preferably, the pulley adjusting mechanism further comprises a support rod fixing block and a support rod fixing frame, the pulley support rod is fixed at the upper end of the support rod fixing block, the support rod fixing frame is fixed at the lower end of the support rod fixing block, and the support rod fixing frame is fixedly connected with the movable adjusting screw rod.
Preferably, the lateral support plate is provided with a limiting plate, the lateral support plate is provided with two rows of round holes, a slide rail is arranged between the two rows of round holes, the pulley moving shaft can horizontally move on the slide rail, the limiting plate is provided with two rows of groove-shaped holes corresponding to the round holes, a fixing hole corresponding to the slide rail is formed in the middle of the two rows of groove-shaped holes, the pulley moving shaft penetrates through the slide rail and the fixing hole to be positioned, and the limiting plate and the lateral support plate are clamped and positioned through bolts.
Preferably, the pulley moving shaft is cylindrical, and a cuboid for fixing the pulley (12) is arranged in the middle of the pulley moving shaft.
Preferably, the rotation adjusting screw is fixedly connected with the side support plate through a right-angle fastener.
Preferably, the two side support plates are aligned with the corresponding threaded holes of the bottom plate through bottom threaded holes and are connected through screws; the rear fixing plate is aligned with the corresponding threaded hole of the bottom plate through the threaded hole at the bottom and is fixedly connected with the threaded hole through a screw.
Compared with the prior art, the invention has the following beneficial effects:
the self-locking rotary experiment table provided by the invention adopts the symmetrically arranged side supporting plates, and the side supporting plates are vertically arranged with the rear fixing plate to form a gantry structure which plays a role in fixing the experiment platform; the rotary shaft with the milling plane is fixedly arranged on the side supporting plate and can be used for fixing the rotary plate, and the rotary plate can be set to fix the experimental wall surfaces of other planes; the screw nut is arranged on the rotary adjusting screw rod, the rotary adjusting screw rod is matched with the screw nut with the matched model, and the reciprocating mechanism is fixed on the screw nut, so that the reciprocating mechanism can be driven to move through the screw nut under the condition that a handle I of the rotary adjusting screw rod rotates, and the rotating plate can be driven to rotate under the condition that the reciprocating mechanism is fixedly connected with the rotating shaft, so that the precision requirement of the rotating angle is met, and the reliability of the experiment table is improved; the lifting mechanism is driven to do linear motion under the condition that the handle II of the adjusting screw rod is rotated and moved, different experimental wall surfaces are placed on the experimental wall surfaces arranged on the rotating plate, so that the roughness and the unevenness of the wall surfaces are changed, the wall surfaces have radian, and then the adsorption device is arranged on the experimental wall surfaces, so that the lifting mechanism can apply tension to the adsorption device, and the tension can be measured; this application is through controlling the adjustment to handle I and handle II, has satisfied rotation angle's required precision and has realized the reverse stroke auto-lock again. The experiment platform is stable in structure and convenient to operate.
Furthermore, a rack is fixed at the upper end of a rack fixing frame of the reciprocating mechanism, the lower end of the rack fixing frame is fixed on a screw nut, the gear and the rack are meshed with each other, the gear is fixedly connected with the rotating shaft, the rack fixing frame is driven to translate when the screw nut moves linearly, the rack fixing frame further drives the rack to move linearly, and under the conditions that the gear and the rack are meshed with each other and the gear is fixedly connected with the rotating shaft, the screw nut can drive the rotating shaft to move rotationally.
Furthermore, the gear is circumferentially fixed with one end of the rotating shaft, the other end of the rotating shaft is axially fixed with the side supporting plate through the nut I, so that the rotating shaft can be fixed on the symmetrically arranged side supporting plates, and the rotating shaft is guaranteed to be always kept at one position.
Furthermore, the rotating plate and the rotating shaft are fixed through screws, so that the rotating plate is prevented from falling off from the rotating shaft; the experiment wall surface installed on the rotating plate is fixed with the rotating plate through screws, so that the experiment wall surface can be prevented from falling off from the rotating plate when the rotating plate is rotated.
Furthermore, a pulley is fixed on the pulley moving shaft, the pulley moving shaft is fixed through two pulley supporting rods to play a role in balancing the pulley moving shaft, and the pulley supporting rods and the movement adjusting screw rod are arranged in a matched mode to drive the pulley supporting rods to do linear motion under the condition that a handle II of the movement adjusting screw rod is rotated, so that the pulley is driven to move horizontally;
the experiment wall of rotor plate sets up adsorption equipment, is equipped with the couple on the adsorption equipment, when realizing test platform's adsorption affinity, is used for the application of force, will apply tensile flexible cable and walk around the pulley, carries out the reading on the tensile tester, through changing the relative position of implementing power direction regulation pulley and rotor plate, realizes freely adjusting the effect of application of force angle and wall angle.
Further, pulley guiding mechanism still includes bracing piece fixed block and bracing piece mount, the upper end of bracing piece fixed block is fixed with the pulley bracing piece, the bottom of pulley bracing piece is threaded, the lower extreme of bracing piece fixed block is fixed with the bracing piece mount, the bracing piece mount links firmly with the removal adjusting screw, the screw at bracing piece fixed block top can be gone into to the pulley bracing piece, the bracing piece fixed block can use the screw to link firmly through the screw hole of its both sides and bracing piece mount, can be when the handle II who removes the adjusting screw removes, drive the bracing piece mount and remove, the bracing piece fixed block on the bracing piece mount just can drive the pulley bracing piece and remove.
Further, the outside of side backup pad is equipped with the limiting plate seted up two rows of round holes in the side backup pad, be equipped with the slide rail in the middle of two rows of round holes, pulley removal axle can horizontal migration on the slide rail, seted up on the limiting plate with two rows of cell type holes that the round hole position corresponds, set up the fixed orifices that corresponds with the slide rail position in the middle of two rows of cell type holes, pulley removal axle passes the slide rail and fixes a position with the fixed orifices, and the limiting plate passes through the bolt block location with the side backup pad, uses close-fitting bolt and nut to pass through the cell type hole and the cooperation of side backup pad in the side backup pad, can avoid pulley removal axle to remove about on.
Further, the pulley removes the axle and is cylindric, and the pulley removal axle of can being convenient for is around translation on the slide rail, is equipped with the screw at the both ends that the pulley removed the axle, and it is spacing to assemble round nut realization axial, and the middle part that the pulley removed the axle is equipped with the cuboid of fixed pulley, and the pulley removes the axle and uses with the limiting plate cooperation, prevents to wind around removing the rotation of axle after the pulley receives axial external force.
Furthermore, the rotary adjusting screw rod is fixedly connected with the side face supporting plate through a right-angle fastener, so that the rotary adjusting screw rod can be reinforced, and the phenomenon that the normal work of the angle rotating mechanism is influenced by falling off is avoided.
Furthermore, the two side supporting plates are aligned with the threaded holes corresponding to the bottom plate through the bottom threaded holes and are connected through screws, and the rear fixing plate is aligned with the threaded holes corresponding to the bottom plate through the bottom threaded holes and is fixedly connected through screws to play a reinforcing role.
Drawings
FIG. 1 is a schematic structural view of a self-locking rotary test stand according to the present invention;
FIG. 2 is a right side view of the self-locking rotational test stand of the present invention;
FIG. 3 is a front view of the self-locking rotational test stand of the present invention;
fig. 4 is a lifting structure diagram of the top of the pulley support rod of the self-locking rotation test bed of the invention.
Wherein: 1-rotating plate; 2-a rotating shaft; 3-a gear; 4-a rack; 5-rack fixing frame; 6-lead screw nut; 7-rotating the adjusting screw; 8-side support plates; 9-a bottom plate; 10-a pulley moving shaft; 11-a pulley support bar; 12-a pulley; 13-supporting rod fixing blocks; 14-support bar fixing frame; 15-moving the adjusting screw; 16-right angle fasteners; 17-nut I; 18-rear fixing plate; 19-a limiting plate; 20-handle I; 21-handle II.
Detailed Description
In order to make the technical solutions of the present invention better understood, 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.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. The invention is described in further detail below with reference to the accompanying drawings:
as shown in figure 1, the self-locking rotary experiment table provided by the invention adopts a gantry structure as a fixing and supporting base, and has better stability, wherein two side supporting plates 8 are aligned with corresponding threaded holes of a bottom plate 9 through bottom threaded holes and are connected through screws, and a rear fixing plate 18 is also aligned with corresponding threaded holes of the bottom plate 9 through bottom threaded holes and is connected through screws to play a role in reinforcement. The working plane of the invention is the upper surface of the rotating plate 1, a plane is milled on the rotating shaft 2, and the rotating plate 1 can be fixed on the rotating shaft 2 through screws.
As shown in fig. 2, the angle adjusting mechanism of the rotating plate 1 is composed of a rotation adjusting screw 7 and a reciprocating mechanism, and the reciprocating mechanism includes a gear 3, a rack 4 and a rack fixing frame 5. The gear 3 is circumferentially fixed with one end of the rotating shaft 2 through a flat key, and the other end of the rotating shaft 2 is axially fixed through a nut I17, so that the rotating shaft 2 is fixed on the symmetrically arranged side supporting plates 8, and the rotating shaft 2 is ensured to be always kept at one position. The rack 4 is meshed with the gear 3, and the rack 4 is fixed on the rack fixing frame 5 through a screw. The rack fixing frame 5 is fixed on the screw nut 6 through a screw to drive the rack 4 to do linear motion. The rotary adjusting screw 7 is matched with the screw nut 6 matched with the rotary adjusting screw in type, rotary motion is converted into linear motion, the rotary adjusting screw 7 can be controlled and adjusted through the tail end handle I20, the precision requirement of the rotation angle is met, reverse stroke self-locking is achieved, and the reliability of the experiment table is improved. The rotary adjusting screw 7 is fixedly connected with the side supporting plate 8 through a right-angle fastener 16, so that the rotary adjusting screw 7 can be reinforced, and the phenomenon that the normal work of the angle rotating mechanism is influenced by falling off is avoided.
As shown in fig. 3, the pulley adjusting mechanism is composed of a hoisting mechanism, a support rod fixing block 13, a support rod fixing frame 14 and a movable adjusting screw 15. The hoisting mechanism comprises a pulley 12, a pulley moving shaft 10, two pulley supporting rods 11, a flexible cable and a hook, the pulley 12 is fixedly connected with the pulley moving shaft 10 through a screw hole at the top part thereof, the pulley moving shaft 10 is lifted by the pulley supporting rod 11, the lifting structure at the top part of the pulley supporting rod 11 is a U-shaped groove, the pulley moving shaft 10 can be clamped in the groove, as shown in fig. 4, the pulley support rods 11 are provided with two parts which can reinforce the pulley moving shaft 10, the pulley support rods 11 can drive the pulley moving shaft 10 to move horizontally, the two ends of the pulley moving shaft 10 are cylindrical and are provided with threads, can assemble round nut and realize that the axial is spacing, pulley removal axle 10 middle part is the cuboid of bottom surface length of side 5mm, and pulley removal axle 10 can remove the round hole plane laminating on the axle 10 and the side support board 8, prevents that pulley 12 from receiving behind the axial external force to remove axle 10 rotatory around the pulley. Seted up two rows of round holes on the side support plate 8, the centre of two rows of round holes still is equipped with the slide rail, pulley removal axle 10 can horizontal migration on the slide rail, still open on the limiting plate 19 with two rows of cell type holes that the round hole position corresponds, set up the fixed orifices that corresponds with the slide rail position in the middle of two rows of cell type holes, limiting plate 19 is located the outside of side support plate 8, pulley removal axle 10 passes the slide rail and fixes a position with the fixed orifices, limiting plate 19 passes through bolt card and location with side support plate 8, as shown in fig. 2, can use close-fitting bolt and nut to pass through the round hole on the side support plate 8 and cooperate with side support plate 8, avoid pulley removal axle 10 to remove about on the slide rail of side. The bottom of the pulley supporting rod 11 is provided with a screw hole with a thread capable of being screwed into the top of the supporting rod fixing block 13, the supporting rod fixing block 13 can be fixedly connected with a supporting rod fixing frame 14 through the screw holes on two sides of the supporting rod fixing block 13 by screws, the supporting rod fixing frame 14 is fixedly connected with a movable adjusting screw rod 15, and the handle II 21 at the rear part of the movable adjusting screw rod 15 can be rotated to adjust the displacement, so that the pulley 12 is driven to move horizontally.
In the use of the invention, different experimental walls can be placed on the working surface of the rotating plate 1 to change the roughness, unevenness or curvature of the walls. When the adsorption force testing device is used for testing the adsorption force, an adsorption device needs to be arranged on the experimental wall surface of the rotating plate 1, and a hook is arranged on the adsorption device for applying force, so that the force application direction can be changed through the pulley 12, namely, the relative position of the pulley 12 and the rotating plate 1 is adjusted. In use of the invention, the flexible cable to which tension is applied is passed around the pulley 12 and connected to a tension tester to make readings.
The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (10)
1. A rotary experiment table with self-locking performance is characterized by comprising a gantry structure, an angle rotating mechanism and a pulley adjusting mechanism;
the gantry structure comprises a rear fixing plate (18) and two symmetrically arranged side supporting plates (8), a rotating shaft (2) of a milling plane is fixed on each side supporting plate (8), a rotating plate (1) is fixed on each rotating shaft (2), and the rear fixing plate (18) is vertically fixed with the two side supporting plates (8);
the angle rotating mechanism is attached to the outer side of the side supporting plate (8), and the pulley adjusting mechanism is attached to the inner side of the side supporting plate (8);
the angle rotating mechanism comprises a rotating adjusting lead screw (7) and a reciprocating mechanism, a lead screw nut (6) is arranged on the rotating adjusting lead screw (7) in a matching mode, the lead screw nut (6) is fixedly connected with the reciprocating mechanism, and the reciprocating mechanism is fixedly connected with the rotating shaft (2) to drive the rotating plate (1) to rotate;
the pulley adjusting mechanism comprises a hoisting mechanism and a movable adjusting screw rod (15), the hoisting mechanism is positioned above the movable adjusting screw rod (15), the hoisting mechanism is fixedly connected with the movable adjusting screw rod (15), an experiment wall surface is arranged on the rotating plate (1), an adsorption device is arranged on the experiment wall surface, and the hoisting mechanism applies tension to the adsorption device;
the outer side of the rotary adjusting screw rod (7) is provided with a handle I (20), and the outer side of the movable adjusting screw rod (15) is provided with a handle II (21).
2. The rotary experiment table with the self-locking performance according to claim 1, wherein the reciprocating mechanism comprises a gear (3), a rack (4) and a rack fixing frame (5), the rack (4) is fixed at the upper end of the rack fixing frame (5), and the lower end of the rack fixing frame (5) is fixed on a lead screw nut (6);
the gear (3) is meshed with the rack (4), and the gear (3) is fixedly connected with the rotating shaft (2).
3. The rotary experiment table with self-locking property according to claim 2, wherein the gear (3) is circumferentially fixed with one end of the rotating shaft (2), and the other end of the rotating shaft (2) is axially fixed with the side support plate (8) through a nut I (17).
4. The rotary experiment table with self-locking property according to claim 1, wherein the rotating plate (1) and the rotating shaft (2) are fixed by screws, and the experiment wall surface mounted on the rotating plate (1) and the rotating plate (1) are fixed by screws.
5. The rotary experiment table with the self-locking performance according to claim 4, wherein the hoisting mechanism comprises a pulley moving shaft (10), two pulley support rods (11), a pulley (12), a flexible cable and a hook, the pulley moving shaft (10) is attached to the side support plate (8), the pulley (12) is fixed below the pulley moving shaft (10), the pulley moving shaft (10) is fixedly connected with the upper ends of the pulley support rods (11), and the lower ends of the pulley support rods (11) are fixedly connected with a movement adjusting screw (15);
the adsorption device is provided with a hook, one end of the flexible cable is connected with the hook during force application, and the other end of the flexible cable is connected with the tension tester by bypassing the pulley.
6. The rotary experiment table with self-locking performance according to claim 1, wherein the pulley adjusting mechanism further comprises a supporting rod fixing block (13) and a supporting rod fixing frame (14), the pulley supporting rod (11) is fixed at the upper end of the supporting rod fixing block (13), the supporting rod fixing frame (14) is fixed at the lower end of the supporting rod fixing block (13), and the supporting rod fixing frame (14) is fixedly connected with the movable adjusting screw (15).
7. The rotation experiment table with self-locking performance according to claim 5, wherein a limiting plate (19) is arranged on the outer side of the side supporting plate (8), two rows of round holes are formed in the side supporting plate (8), a sliding rail is arranged between the two rows of round holes, the pulley moving shaft (10) can horizontally move on the sliding rail, two rows of groove-shaped holes corresponding to the round holes are formed in the limiting plate (19), a fixing hole corresponding to the sliding rail is formed in the middle of the two rows of groove-shaped holes, the pulley moving shaft (10) penetrates through the sliding rail and the fixing hole to be positioned, and the limiting plate (19) and the side supporting plate (8) are positioned through bolt clamping.
8. The rotary experiment table with the self-locking performance according to claim 5, wherein the pulley moving shaft (10) is cylindrical, and a rectangular parallelepiped for fixing the pulley (12) is arranged in the middle of the pulley moving shaft (10).
9. The rotary experiment table with self-locking property according to claim 1, wherein the rotary adjusting screw (7) is fixedly connected with the side support plate (8) through a right-angle fastener (16).
10. The rotary experiment table with self-locking property according to claim 1, wherein the two side supporting plates (8) are aligned with the corresponding threaded holes of the bottom plate (9) through bottom threaded holes and are connected through screws; the rear fixing plate (18) is aligned with the corresponding threaded hole of the bottom plate (9) through a threaded hole at the bottom and is fixedly connected through a screw.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110432502.1A CN113092154B (en) | 2021-04-21 | 2021-04-21 | Rotary experiment table with self-locking performance |
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| CN202110432502.1A CN113092154B (en) | 2021-04-21 | 2021-04-21 | Rotary experiment table with self-locking performance |
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| CN113092154A true CN113092154A (en) | 2021-07-09 |
| CN113092154B CN113092154B (en) | 2022-02-22 |
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Cited By (1)
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| CN115029790A (en) * | 2022-06-14 | 2022-09-09 | 安庆麦宝瑞生物科技有限公司 | Flexible adjustable flat plate wire preparation device |
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| CN113092154B (en) | 2022-02-22 |
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