CN113843028A

CN113843028A - Simple mortar fixing device

Info

Publication number: CN113843028A
Application number: CN202111197225.7A
Authority: CN
Inventors: 曹雪; 刘守振; 曹振; 黄莹
Original assignee: Linyi University
Current assignee: Linyi University
Priority date: 2021-10-14
Filing date: 2021-10-14
Publication date: 2021-12-28
Anticipated expiration: 2041-10-14
Also published as: CN113843028B

Abstract

The invention discloses a simple mortar fixing device, and particularly relates to the technical field of experimental equipment fixing. The simple mortar fixing device is suitable for fixing common mortar bodies with different sizes, is wide in application range, can avoid frostbite after liquid nitrogen is added into the mortar body by directly adopting a hand-held mortar body, plays a good role in cold insulation, and can be fixed by hands without feeling extremely low temperature and is easy and convenient to use.

Description

Simple mortar fixing device

Technical Field

The invention relates to the technical field of experimental equipment fixing, in particular to a simple mortar fixing device.

Background

The mortar is a container for grinding the experimental materials in the experiment and is provided with a mortar pestle. Porcelain products are commonly used, as are mortars made of glass, iron, agate, alumina materials. For grinding solid substances or for mixing powdered solids. The specification is represented by the caliber size, and the porcelain mortar specification is 6cm, 8cm, 10cm, 13cm, 16cm, 21.6cm, 25.4cm and 30 cm. In addition, small 3cm diameter glass mortar is also used in the laboratory.

DNA and RNA extraction and conventional physiological index (antioxidant enzyme activity, osmotic adjusting substance and the like) measurement usually need to be quickly frozen by liquid nitrogen, then a sample is put in the mortar, and then the liquid nitrogen is added into the sample to be ground in the mortar, because the temperature of the liquid nitrogen is extremely low (-196 ℃), the temperature of the mortar is rapidly reduced, and meanwhile, when the sample is ground, the liquid nitrogen needs to be continuously added into the mortar, so that the conventional glove-wearing mortar is difficult to fix.

In view of the above technical background, the present inventors provide a simple mortar fixing device.

Disclosure of Invention

The invention mainly aims to provide a simple mortar fixing device which can effectively solve the problems in the background technology.

In order to achieve the purpose, the invention adopts the technical scheme that:

a simple mortar fixing device comprises a bottom plate, wherein supporting legs are fixedly arranged at four corners of the lower end of the bottom plate, a switch is arranged at one corner of the upper end of the bottom plate, mounting plates are symmetrically and fixedly arranged at the left part and the right part of the upper end of the bottom plate, first clamping mechanisms are arranged at the upper parts of the two mounting plates, limiting grooves are formed in the front part and the rear part of the upper end of the bottom plate, second clamping mechanisms are movably arranged in the two limiting grooves, a placing groove is formed in the middle part of the upper end of the bottom plate, a mortar body is placed in the placing groove, the two mounting plates and the two first clamping mechanisms are respectively bilaterally symmetrical about the placing groove, a driving mechanism is arranged at the lower end of the bottom plate and comprises a driving motor and two second screw rods, the driving motor is electrically connected with the switch, and the second clamping mechanisms comprise a mounting seat, a limiting plate fixedly arranged at the lower end of the mounting seat and a connecting plate fixedly arranged at the lower end of the limiting plate, and the mounting seat, the limiting plate and the connecting plate are of an integrally formed structure.

Preferably, driving motor bolt fixed mounting is in bottom plate lower extreme one side, and driving motor's output has the transmission shaft through shaft coupling fixed mounting, driving motor's one end fixed mounting is kept away from to the transmission shaft has first conical gear, the equal fixed mounting of bottom plate lower extreme front portion and lower extreme rear portion has the fixed plate, and two fixed plates are symmetrical about first conical gear, two the second screw rod is connected respectively and is located between fixed plate and the connecting plate with one side, and the equal fixed mounting of one end that two second screw rods are close to each other has second conical gear, two second conical gear all with first conical gear intermeshing.

Preferably, the outer surfaces of the two second screws are provided with opposite external threads, the two second screws are in threaded connection with the connecting plate, and the two second screws are respectively and rotatably connected with the two fixing plates through annular bearings.

Preferably, the mount pad comprises base and vertical pole, and base and vertical pole be the integrated into one piece structure, the one end fixed mounting that the base is close to the mortar body has two connecting rods, the one end middle part movable mounting that vertical pole is close to the mortar body has the movable rod, two the common fixed mounting of one end that the base was kept away from to connecting rod and movable rod has the backup pad, the one end fixed mounting that two connecting rods and movable rod were kept away from to the backup pad has rubber cushion.

Preferably, the mounting groove has been seted up at the one end middle part that vertical pole is close to the mortar body, fixed mounting has coil spring in the mounting groove, the one end that the backup pad was kept away from to the movable rod extends to in the mounting groove and is in the same place with coil spring fixed connection.

Preferably, the supporting plate is a plate-shaped structure made of elastic metal, the lower part of the supporting plate is arc-shaped, and the rubber cushion and the supporting plate are bonded together through a strong adhesive.

Preferably, first fixture includes first screw rod and clamping piece, first screw rod is provided with threely, and three first screw rod all with mounting panel threaded connection, three the one end that the mortar body was kept away from to first screw rod runs through the mounting panel and extends to its outside and fixed mounting has the carousel, the one end outside that first screw rod was kept away from to the carousel all is provided with the handle, the one end that first screw rod is close to the mortar body all rotates through the bearing and installs the fixed block, the clamping piece is close to the equal three clamp splice of fixedly connected with of one end of fixed block, and is three one side that the clamping piece was kept away from to the clamp splice has all seted up the draw-in groove, and three fixed block rotates through this draw-in groove and three clamp splice respectively and links together.

Preferably, the clamping piece includes the sheetmetal, the one end fixedly connected with foam pad of clamp splice is kept away from to the sheetmetal, the one end fixedly connected with silica gel pad of sheetmetal is kept away from to the foam pad, the one end equidistance fixedly connected with a plurality of sand grip that foam pad was kept away from to the silica gel pad, and sand grip and silica gel pad be the integrated into one piece structure.

Preferably, the size of spacing board is the same with the size of spacing groove, the size of connecting plate is greater than the size of spacing board, and limiting plate sliding connection is in the same place second centre gripping knot mechanism and bottom plate sliding connection at the spacing inslot.

Compared with the prior art, the invention has the following beneficial effects:

in the invention, by arranging the first clamping mechanism, the second clamping mechanism and the driving mechanism, the two connecting plates can drive the whole second clamping mechanism to slide in the limiting groove by utilizing the screw rod principle so as to control the two second clamping mechanisms to be close to each other and further facilitate clamping the mortar body, meanwhile, the first screw rod can be moved in the axial direction by rotating the turntable, the clamping piece is made of soft material, the bending shape of the clamping piece can be randomly changed by controlling the positions of the three first screw rods, so that the clamping piece is tightly attached to the outer surface of the mortar body so as to further fix the mortar body, thus the fixing work of the mortar body can be completed, in practice, the rotary fixing mode can be carried out according to the size of the actual mortar body, the rotary fixing device is suitable for fixing common mortar bodies with different sizes, the application range is wide, and compared with the mode of directly adopting a hand-held mortar body, after liquid nitrogen is added into the mortar, frostbite can be avoided, a good cold insulation effect is achieved, the device can be fixed by hands at the moment, the temperature cannot be extremely low, and the mortar is easy and light to use.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic diagram of the positions of the placement grooves and the limiting grooves of the present invention;

FIG. 3 is a schematic view of the overall structure of the driving mechanism of the present invention;

FIG. 4 is a schematic view of the overall structure of the second clamping mechanism of the present invention;

FIG. 5 is a schematic view of the location of the mounting slot and coil spring of the present invention;

FIG. 6 is a schematic view of the overall structure of the first clamping mechanism of the present invention;

figure 7 is a cut-away schematic view of a clip of the present invention.

In the figure: 1. a base plate; 2. supporting legs; 3. a switch; 4. mounting a plate; 5. a first clamping mechanism; 51. a first screw; 52. a turntable; 53. a grip; 54. a clip; 541. a metal sheet; 542. a foam pad; 543. a silica gel pad; 544. a convex strip; 55. a fixed block; 56. a clamping block; 6. a second clamping mechanism; 61. a mounting seat; 611. a base; 612. a vertical rod; 613. mounting grooves; 614. a coil spring; 62. a limiting plate; 63. a connecting plate; 64. a connecting rod; 65. a support plate; 66. a rubber cushion; 67. a movable rod; 7. a limiting groove; 8. a placement groove; 9. a mortar body; 10. a drive mechanism; 101. a drive motor; 102. a first bevel gear; 103. a fixing plate; 104. a second bevel gear; 105. a second screw.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in figures 1-7, a simple mortar fixing device comprises a bottom plate 1, wherein four corners of the lower end of the bottom plate 1 are fixedly provided with supporting legs 2, one corner of the upper end of the bottom plate 1 is provided with a switch 3, the left part and the right part of the upper end of the bottom plate 1 are symmetrically and fixedly provided with mounting plates 4, the upper parts of the two mounting plates 4 are provided with first clamping mechanisms 5, the front part and the rear part of the upper end of the bottom plate 1 are provided with limiting grooves 7, the two limiting grooves 7 are movably provided with second clamping mechanism 6, the middle part of the upper end of the bottom plate 1 is provided with a mortar placing groove 8, a mortar body 9 is placed in the placing groove 8, the two mounting plates 4 and the two first clamping mechanisms 5 are bilaterally symmetrical relative to the mortar body 9, the lower end of the bottom plate 1 is provided with a driving mechanism 10, the driving mechanism 10 comprises a driving motor 101 and two second screw rods 105, the driving motor 101 is electrically connected with the switch 3, the second clamping knot mechanism 6 comprises an installation seat 61, a limiting plate 62 fixedly installed at the lower end of the installation seat 61 and a connecting plate 63 fixedly installed at the lower end of the limiting plate 62, and the installation seat 61, the limiting plate 62 and the connecting plate 63 are of an integrally formed structure; it should be noted that the size of the limiting plate 62 is the same as the size of the limiting groove 7, the size of the connecting plate 63 is larger than the size of the limiting plate 62, and the limiting plate 62 is slidably connected in the limiting groove 7 to slidably connect the second clamping mechanism 6 and the bottom plate 1 together, so that the two second clamping mechanisms 6 can slide on the bottom plate 1.

Specifically, referring to fig. 3, a driving motor 101 is fixedly installed on one side of the lower end of a bottom plate 1 by bolts, a transmission shaft is fixedly installed at an output end of the driving motor 101 through a coupler, a first conical gear 102 is fixedly installed at one end of the transmission shaft far away from the driving motor 101, fixing plates 103 are fixedly installed at the front portion and the rear portion of the lower end of the bottom plate 1, the two fixing plates 103 are symmetrical with respect to the first conical gear 102, two second screws 105 are respectively connected between the fixing plate 103 and a connecting plate 63 which are located on the same side, second conical gears 104 are fixedly installed at one ends of the two second screws 105 which are close to each other, and the two second conical gears 104 are engaged with the first conical gear 102.

In addition, it should be noted that, in the present invention, the driving motor 101 employs a positive and negative servo motor, when the driving motor 101 is controlled by the switch 3 to start, the transmission shaft at the output end thereof can drive the first bevel gear 102 to rotate, the first bevel gear 102 is engaged with the two second bevel gears 104, and further can drive the two second screws 105 to rotate through the two second bevel gears 104, the outer surfaces of the two second screws 105 are engraved with opposite external threads, the connection relationship between the two second screws 105 and the connecting plate 63 is threaded connection, the two second screws 105 are respectively connected with the two fixing plates 103 through the annular bearings in a rotating manner, that is, the screw principle can be utilized, so that the two connecting plates 63 drive the whole second clamping mechanism 6 to slide in the limiting groove 7, so as to control the two second clamping mechanisms 6 to approach to each other or separate from each other, thereby facilitating the clamping of the mortar body 9.

Referring to fig. 4-5, the mounting base 61 is composed of a base 611 and a vertical rod 612, the base 611 and the vertical rod 612 are of an integrally formed structure, two connecting rods 64 are fixedly mounted at one end of the base 611 close to the mortar body 9, a movable rod 67 is movably mounted in the middle of one end of the vertical rod 612 close to the mortar body 9, a supporting plate 65 is fixedly mounted at one end of the two connecting rods 64 and the movable rod 67 far from the base 611, and a rubber cushion 66 is fixedly mounted at one end of the supporting plate 65 far from the two connecting rods 64 and the movable rod 67; an installation groove 613 is formed in the middle of one end of the vertical rod 612 close to the mortar body 9, a coil spring 614 is fixedly installed in the installation groove 613, and one end of the movable rod 67 far away from the support plate 65 extends into the installation groove 613 and is fixedly connected with the coil spring 614.

It can be seen that, when the two second clamping mechanisms 6 approach each other and clamp the mortar body 9, the rubber cushions 66 on the two second clamping mechanisms 6 can play a certain anti-slip role to prevent displacement during the process of clamping the mortar body 9, in addition, in the present invention, the supporting plate 65 is a plate-shaped structure made of elastic metal, and the lower portion of the supporting plate 65 is arc-shaped, the rubber cushions 66 and the supporting plate 65 are adhered together by a strong adhesive, in practice, the mortar body 9 located between the two second clamping mechanisms 6 can be clamped by the elastic force of the supporting plate 65 and the elastic force of the coil spring 614 through the cooperation of the mounting groove 613, the movable rod 67 and the coil spring 614, so as to ensure the clamping and fixing effect.

Referring to fig. 6, the first clamping mechanism 5 includes three first screws 51 and three clamping pieces 54, the three first screws 51 are all connected with the mounting plate 4 by screw threads, one ends of the three first screws 51 far away from the mortar body 9 penetrate through the mounting plate 4 and extend to the outside thereof, and are fixedly mounted with a turntable 52, the outer side of one end of the turntable 52 far away from the first screws 51 is provided with a handle 53, one ends of the first screws 51 near the mortar body 9 are respectively mounted with a fixing block 55 through bearings in a rotating manner, one ends of the clamping pieces 54 near the fixing block 55 are respectively fixedly connected with three clamping blocks 56, one sides of the three clamping blocks 56 far away from the clamping pieces 54 are respectively provided with a clamping slot, and the three fixing blocks 55 are respectively connected with the three clamping blocks 56 through the clamping slots in a rotating manner.

It can be seen that the first screw 51 can move in the axial direction by rotating the rotary disc 52, and the clamping pieces 54 are made of soft material, and the bending shape of the clamping pieces 54 can be changed arbitrarily by controlling the positions of the three first screws 51, so that the clamping pieces 54 can be tightly attached to the outer surface of the mortar body 9, so as to fix the mortar body 9.

As shown in fig. 7, the clamping piece 54 includes a metal sheet 541, a foam pad 542 is fixedly connected to an end of the metal sheet 541 far from the clamping block 56, a silica gel pad 543 is fixedly connected to an end of the foam pad 542 far from the metal sheet 541, a plurality of protruding strips 544 are fixedly connected to an end of the silica gel pad 543 far from the foam pad 542 at an equal distance, and the protruding strips 544 and the silica gel pad 543 form an integrated structure.

It should be noted that, in practice, the specification of the mortar body 9 generally includes 6cm, 8cm, 10cm, 13cm, 16cm, 21.6cm, 25.4cm and 30cm, and in addition, a small and compact glass mortar with a diameter of 3cm is used in a laboratory, so the curvatures of the outer surfaces of the mortar bodies 9 with different diameters are different, and therefore, the metal sheet 541 is made of high-strength elastic metal in the invention, the high-strength elastic metal used here only needs to meet the requirement that the maximum bending angle is not less than 90 °, and the foam pad 542 and the silica gel pad 543 are used for buffering, so that the clamping sheet 54 can be suitable for fixing the mortar bodies 9 with different sizes.

In summary, when the smaller-sized mortar body 9 is used for grinding, the rotary table 52 is adjusted to rotate the rotary table 52, so that the first screw 51 moves in the axial direction thereof, the bent shape of the clamping piece 54 can be changed arbitrarily by controlling the positions of the three first screws 51, and the clamping piece is further tightly attached to the outer surface of the mortar body 9, so as to fix the mortar body 9, thereby fixing the smaller-sized mortar body 9 within a certain range can be completed, and before the above operation is completed for the larger-sized mortar body 9, the mortar body 9 is placed in the placing groove 8, the driving motor 101 is started, the transmission shaft at the output end thereof drives the first bevel gear 102 to rotate, the first bevel gear 102 is meshed with the two second bevel gears 104, and the two second screws 105 are driven to rotate by the two second bevel gears 104, and opposite external threads are engraved on the outer surfaces of the two second screws 105, and the two second screws 105 are in threaded connection with the connecting plate 63, the two second screws 105 are respectively rotatably connected with the two fixing plates 103 through annular bearings, so that the two connecting plates 63 can drive the whole second clamping mechanism 6 to slide in the limiting groove 7 by utilizing the screw rod principle, the two second clamping mechanisms 6 are controlled to be close to each other, and the mortar body 9 is clamped tightly, in the process, a worker can adjust the position of the mortar body 9 at any time to enable the mortar body 9 to be located at the middle position of the two second clamping mechanisms 6, and then the clamping pieces 54 can be tightly attached to the outer surface of the mortar body 9 by controlling the positions of the three first screws 51, so that the fixing work of the mortar body 9 with a larger size in a certain range can be completed.

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.

Claims

1. The utility model provides a simple and easy mortar fixing device, includes bottom plate (1), its characterized in that: the mortar machine is characterized in that supporting legs (2) are fixedly mounted at four corners of the lower end of the bottom plate (1), a switch (3) is arranged at one corner of the upper end of the bottom plate (1), mounting plates (4) are symmetrically and fixedly mounted at the left end and the right end of the upper end of the bottom plate (1), first clamping mechanisms (5) are arranged on the upper portions of the two mounting plates (4), limiting grooves (7) are formed in the front portion and the rear portion of the upper end of the bottom plate (1), second clamping mechanism mechanisms (6) are movably mounted in the two limiting grooves (7), a placing groove (8) is formed in the middle of the upper end of the bottom plate (1), mortar bodies (9) are placed in the placing groove (8), the two mounting plates (4) and the two first clamping mechanisms (5) are bilaterally symmetrical with respect to the placing groove (8), a driving mechanism (10) is arranged at the lower end of the bottom plate (1), and the driving mechanism (10) comprises a driving motor (101) and two second screw rods (105), driving motor (101) and switch (3) electric connection, second centre gripping knot mechanism (6) include mount pad (61), fixed mounting in limiting plate (62) and the connecting plate (63) of fixed mounting in limiting plate (62) lower extreme of mount pad (61) lower extreme, and mount pad (61), limiting plate (62) and connecting plate (63) are the integrated into one piece structure.

2. The simple mortar holding device according to claim 1, wherein: driving motor (101) bolt fixed mounting is in bottom plate (1) lower extreme one side, and the output of driving motor (101) has the transmission shaft through shaft coupling fixed mounting, the one end fixed mounting that driving motor (101) were kept away from to the transmission shaft has first conical gear (102), bottom plate (1) lower extreme front portion and the equal fixed mounting of lower extreme rear portion have fixed plate (103), and two fixed plate (103) are symmetrical about first conical gear (102), two second screw rod (105) are connected respectively between fixed plate (103) and connecting plate (63) that lie in same one side, and the equal fixed mounting of one end that two second screw rods (105) are close to each other has second conical gear (104), two second conical gear (104) all with first conical gear (102) intermeshing.

3. The simple mortar holding device according to claim 2, wherein: the outer surfaces of the two second screw rods (105) are provided with opposite external threads, the two second screw rods (105) are in threaded connection with the connecting plate (63), and the two second screw rods (105) are respectively and rotatably connected with the two fixing plates (103) through annular bearings.

4. The simple mortar holding device according to claim 1, wherein: mount pad (61) comprise base (611) and vertical pole (612), and base (611) and vertical pole (612) are the integrated into one piece structure, one end fixed mounting that base (611) are close to mortar body (9) has two connecting rods (64), vertical pole (612) are close to the one end middle part movable mounting that mortar body (9) have movable rod (67), two the common fixed mounting of one end of base (611) has backup pad (65) is kept away from to connecting rod (64) and movable rod (67), the one end fixed mounting that two connecting rods (64) and movable rod (67) were kept away from in backup pad (65) has rubber cushion (66).

5. The simple mortar holding device according to claim 4, wherein: an installation groove (613) is formed in the middle of one end, close to the mortar body (9), of the vertical rod (612), a spiral spring (614) is fixedly installed in the installation groove (613), and one end, far away from the supporting plate (65), of the movable rod (67) extends into the installation groove (613) and is fixedly connected with the spiral spring (614).

6. The simple mortar holding device according to claim 4, wherein: the supporting plate (65) is of a plate-shaped structure made of elastic metal, the lower portion of the supporting plate (65) is arc-shaped, and the rubber cushion (66) and the supporting plate (65) are bonded together through a strong adhesive.

7. The simple mortar holding device according to claim 1, wherein: the first clamping mechanism (5) comprises three first screw rods (51) and three clamping pieces (54), the first screw rods (51) are arranged, the three first screws (51) are in threaded connection with the mounting plate (4), one ends of the three first screws (51) far away from the mortar body (9) penetrate through the mounting plate (4) to extend to the outer side of the mounting plate and are fixedly provided with turntables (52), the outer sides of the ends of the turnplate (52) far away from the first screw rod (51) are respectively provided with a handle (53), one end of the first screw rod (51) close to the mortar body (9) is rotatably provided with a fixed block (55) through a bearing, one end of the clamping piece (54) close to the fixing block (55) is fixedly connected with three clamping blocks (56), one sides of the three clamping blocks (56) far away from the clamping piece (54) are respectively provided with a clamping groove, and the three fixing blocks (55) are respectively connected with the three clamping blocks (56) in a rotating way through the clamping grooves.

8. The simple mortar holding device according to claim 1, wherein: clamping piece (54) include sheetmetal (541), one end fixedly connected with foam pad (542) of clamp splice (56) is kept away from to sheetmetal (541), one end fixedly connected with silica gel pad (543) of sheetmetal (541) is kept away from to foam pad (542), the one end equidistance fixedly connected with a plurality of sand grip (544) of foam pad (542) are kept away from to silica gel pad (543), and sand grip (544) and silica gel pad (543) are the integrated into one piece structure.

9. The simple mortar holding device according to claim 1, wherein: the size of the limiting plate (62) is the same as that of the limiting groove (7), the size of the connecting plate (63) is larger than that of the limiting plate (62), and the limiting plate (62) is connected in the limiting groove (7) in a sliding mode to enable the second clamping and connecting mechanism (6) and the bottom plate (1) to be connected together in a sliding mode.