Novel biological cell grinding device

Abstract

The utility model relates to the technical field of biological cell tissue decomposition, in particular to a novel biological cell grinding device. The novel biological cell grinding device comprises a first motor, a first transmission shaft and a first fixing part, wherein a first through hole is formed in the first fixing part; the lifting mechanism comprises a second motor, a second transmission shaft, a transmission gear, a lifting seat, a grinding shaft, a second fixing part and a third fixing part, a first connecting part is arranged on the side wall of the lifting seat for mounting the rack, a second through hole is formed in the top of the lifting seat, and a third through hole is formed in the bottom of the lifting seat for mounting the grinding shaft. A second opening is formed in the bottom of the grinding shaft, and a connecting groove is formed in the top of the second opening. A first chamfer is arranged on the side, close to the second opening, of the connecting groove. A second chamfer is arranged on the side, close to the bottom of the grinding shaft, of the second opening. Through the first chamfer, the connecting piece at the top of the rotating component of the grinder is buffered in the descending process of the grinding shaft, so that the abrasion of the grinding shaft is reduced while the abnormal sound is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of biological cell tissue decomposition, in particular to a novel biological cell grinding device. Background Art

[0002] In biological research, biological cell tissues are often broken to fully release biological macromolecules into the solution without losing biological activity. The biological cell tissues are usually broken by grinding, pounding, or homogenization.

[0003] At present, when the grinding method is used to crush biological cell tissues, a mechanical grinder for biological materials disclosed in the US patent document with the publication number US05731199A is often used. The mechanical grinder is used to make the biological material contact and rub against the cutting member by cooperating with the cutting member and the rotating member arranged in the housing, thereby crushing the biological cell tissues. In order to improve the grinding efficiency of the above-mentioned grinder, a grinding device that drives the rotating member of the grinder to rotate by a motor has appeared on the market. In order to facilitate the user to place or take out the grinder, the existing grinding device is provided with a connector at the top of the rotating member of the grinder.

[0004] Although the use of the connector facilitates the placement or removal of the grinder, when the grinding device drives the grinder to crush biological cell tissues, the grinding shaft of the grinding device is connected to the connector and the rotating component of the grinder in sequence, which causes the connector and the rotating component to shake during the grinding operation. If the grinder is placed offset, it is easy to cause the rotating component of the grinder to pop out. Utility Model Content

[0005] In order to solve the above-mentioned deficiencies in the prior art, the utility model provides a novel biological cell grinding device, which comprises a driving mechanism and a lifting mechanism, wherein the driving mechanism is arranged above the lifting mechanism.

[0006] The driving mechanism includes a first motor, a first transmission shaft and a first fixing part. The first transmission shaft is movably connected to the first motor, and the first motor is detachably connected to the first fixing part. The first fixing part is provided with a first through hole to accommodate the first transmission shaft.

[0007] The lifting mechanism includes a second motor, a second transmission shaft, a transmission gear, a lifting seat, a grinding shaft, a second fixing portion and a third fixing portion. The second motor is movably connected to the second transmission shaft. The second transmission shaft is tightly connected to the transmission gear. The lifting seat is provided with a first connecting portion for mounting a rack. The transmission gear is meshed with the rack. The top and bottom of the lifting seat are respectively provided with a second through hole and a third through hole for mounting the grinding shaft. The second fixing portion and the third fixing portion are respectively provided with a fourth through hole and a fifth through hole for mounting the second transmission shaft.

[0008] A first opening is provided at the top of the grinding shaft to accommodate the first transmission shaft. A second opening is provided at the bottom of the grinding shaft, and a connecting groove is provided at the top of the second opening. The connecting groove is arranged opposite to the center of the second opening. A first chamfer is provided on one side of the connecting groove close to the second opening. A second chamfer is provided on one side of the second opening close to the bottom of the grinding shaft.

[0009] Furthermore, the first chamfer is inclined from the bottom of the grinding shaft to the top of the grinding shaft. The inclination angle of the first chamfer is 30°-60°.

[0010] Furthermore, the second chamfer is inclined from the bottom of the grinding shaft to the top of the grinding shaft. The inclination angle of the second chamfer is 20°-80°.

[0011] Furthermore, a limiting groove is provided on the side wall of the grinding shaft, and a sixth through hole is provided on the bottom of the first transmission shaft. A limiting pin is installed in the limiting groove and the sixth through hole, and the limiting pin passes through the sixth through hole and is slidably connected to the limiting groove.

[0012] Furthermore, a first bearing and a second bearing are respectively assembled between the second through hole and the third through hole and the grinding shaft.

[0013] Furthermore, a third bearing is assembled between the fourth through hole and the second transmission shaft, and a fourth bearing is assembled between the fifth through hole and the second transmission shaft.

[0014] Furthermore, the novel biological cell grinding device may also include a floating mechanism, which is arranged below the grinding shaft.

[0015] The floating mechanism includes a floating plate, a floating shaft, a bushing and a fourth fixing part from top to bottom. The floating plate is provided with a second connecting part, and the second connecting part is detachably connected to the floating shaft. The floating shaft is movably connected to the bushing. A spring is provided between the bottom of the floating shaft and the top of the fourth fixing part. The bushing is connected to the fourth fixing part.

[0016] Furthermore, a flexible gasket is provided on the top surface of the floating plate.

[0017] Based on the above, compared with the prior art, the novel biological cell grinding device provided by the utility model provides a first chamfer on the side of the connection groove close to the second opening, so that during the descent of the grinding shaft, the connecting piece at the top of the grinder rotating component is buffered, while reducing abnormal noise, it also reduces the wear of the grinding shaft. By providing a second chamfer on the side of the second opening close to the bottom of the grinding shaft, the contact range between the grinder rotating component and the second opening is increased, and the grinder rotating component is quickly slid toward the center of gravity axis position of the grinding shaft by relying on the inclination angle of the second chamfer, thereby preventing the grinder rotating component from popping out during the docking process between the grinding shaft and the grinder, and improving the docking efficiency between the grinding shaft and the grinder rotating component.

[0018] Other features and beneficial effects of the utility model will be described in the subsequent description, and partly become apparent from the description, or understood by practicing the utility model. The purpose and other beneficial effects of the utility model can be achieved and obtained by the structures specifically pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. The positional relationships described in the drawings in the following description are based on the directions of the components shown in the diagrams unless otherwise specified.

[0020] Figure 1 A schematic structural diagram of an embodiment of a novel biological cell grinding device provided by the utility model;

[0021] Figure 2 for Figure 1 An exploded view of the novel biological cell grinding device shown;

[0022] Figure 3 A schematic diagram of the structure of an embodiment of the grinding shaft provided by the utility model Figure 1 ;

[0023] Figure 4 A schematic diagram of the structure of an embodiment of the grinding shaft provided by the utility model Figure 2 ;

[0024] Figure 5 for Figure 4 The enlarged view of point A in the middle;

[0025] Figure 6 The floating mechanism and Figure 1 Overall view of the joints;

[0026] Figure 7 This is a structural schematic diagram of an embodiment of a biological cell grinder provided by the utility model.

[0027] Reference numerals:

[0028] 100 novel biological cell grinding device; 110 driving mechanism; 111 first motor; 112 first transmission shaft; 1121 sixth through hole; 113 first fixing part; 1131 first through hole; 120 lifting mechanism; 121 second motor; 122 second transmission shaft; 1221 third bearing; 1222 fourth bearing; 123 transmission gear; 124 lifting seat; 1241 first connecting part; 12411 rack; 1242 second through hole; 1245 seventh through hole; 125 Grinding shaft; 1251 first opening; 1252 limiting groove; 1253 first bearing; 1254 second bearing; 1255 second opening; 1256 connecting groove; 1257 first chamfer; 1258 second chamfer; 126 second fixing portion; 1261 fourth through hole; 127 third fixing portion; 1271 fifth through hole; 130 floating mechanism; 131 floating plate; 1311 third connecting portion; 132 floating shaft; 133 bushing; 134 fourth fixing portion; 140 grinder. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments; the technical features designed in different implementation modes of the utility model described below can be combined with each other as long as they do not conflict with each other; based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0030] In the description of the present invention, it should be noted that all terms (including technical terms and scientific terms) used in the present invention have the same meanings as those generally understood by ordinary technicians in the field to which the present invention belongs, and cannot be understood as limitations on the present invention; it should be further understood that the terms used in the present invention should be understood to have meanings consistent with the meanings of these terms in the context of this specification and in the relevant fields, and should not be understood in an idealized or overly formal sense, unless explicitly defined in this utility model.

[0031] In order to facilitate understanding, we first explain some of the nouns:

[0032] Tight fit connection: Tight fit connection means that in mechanical design, the fitting relationship between parts is neither a pure interference fit nor a pure clearance fit, but a transitional fit state between the two.

[0033] Embodiment 1

[0034] Reference Figure 1As shown, in order to improve the shaking of the grinding shaft 125, the connector and the grinder 140 during grinding, the new biological cell grinding device 100 provided in the first embodiment of the utility model includes a driving mechanism 110 and a lifting mechanism 120, and the driving mechanism 110 is arranged above the lifting mechanism 120.

[0035] Combination Figure 1 Reference Figure 2 The driving mechanism 110 includes a first motor 111, a first transmission shaft 112 and a first fixing portion 113. The first transmission shaft 112 is movably connected to the first motor 111. The first motor 111 is detachably connected to the first fixing portion 113. The first fixing portion 113 is provided with a first through hole 1131 to accommodate the first transmission shaft 112.

[0036] In specific implementation, the first motor 111 is movably connected to the first transmission shaft 112 through a coupling. The first motor 111 is detachably connected to the first fixing portion 113 through bolts or buckles. The first fixing portion 113 is provided with a first through hole 1131 to accommodate the first transmission shaft 112.

[0037] Optionally, the first motor 111 may be a servo motor.

[0038] Preferably, the first motor 111 is a stepping motor.

[0039] The lifting mechanism 120 includes a second motor 121, a second transmission shaft 122, a transmission gear 123, a lifting seat 124, a grinding shaft 125, a second fixing portion 126 and a third fixing portion 127. The second motor 121 is movably connected to the second transmission shaft 122. The second transmission shaft 122 is tightly connected to the transmission gear 123. The lifting seat 124 is provided with a first connecting portion 1241 to mount a rack 12411. The transmission gear 123 is meshed with the rack 12411.

[0040] In specific implementation, the second motor 121 is movably connected to the second transmission shaft 122 via a coupling. The second transmission shaft 122 is tightly connected to the transmission gear 123.

[0041] Optionally, the second motor 121 may be a servo motor.

[0042] Preferably, the second motor 121 is a stepping motor.

[0043] The rack 12411 is installed on the first connection portion 1241 of the side wall of the lifting seat 124 by bolts. The installation position of the rack 12411 corresponds to the installation position of the transmission gear 123 to achieve meshing connection between the transmission gear 123 and the rack 12411.

[0044] In this embodiment, the tooth surface of the rack 12411 and the side wall of the lifting seat 124 are arranged parallel to each other.

[0045] Preferably, the transmission gear 123 is a spur gear, and the rack 12411 is a spur rack.

[0046] In one embodiment, the tooth surface of the rack 12411 and the side wall of the lifting base 124 are perpendicular to each other.

[0047] Optionally, the transmission gear 123 is a helical gear, and the rack 12411 is a helical rack.

[0048] Optionally, the transmission gear 123 is a herringbone gear, and the rack 12411 is a herringbone rack.

[0049] The top and bottom of the lifting seat 124 are respectively provided with a second through hole 1242 and a third through hole to install the grinding shaft 125. The top of the grinding shaft 125 is provided with a first opening 1251 to accommodate the first transmission shaft 112. The second fixing portion 126 and the third fixing portion 127 are respectively provided with a fourth through hole 1261 and a fifth through hole 1271 to install the second transmission shaft 122.

[0050] The shape and size of the first opening 1251 correspond to the first transmission shaft 112 , so that the first transmission shaft 112 drives the grinding shaft 125 to rotate.

[0051] Reference Figure 3 As shown, a second opening 1255 is provided at the bottom of the grinding shaft 125 .

[0052] In specific implementation, a second opening 1255 is provided at the bottom of the grinding shaft 125 to adapt to and connect to a rotating component of a grinder 140 commonly used on the market, and the shape of the second opening 1255 corresponds to the rotating component of the grinder 140 .

[0053] In this embodiment, the working principle of the cell grinding device 100 is as follows:

[0054] The second motor 121 in the lifting mechanism 120 drives the second transmission shaft 122 to rotate, thereby driving the transmission gear 123 to rotate. The transmission gear 123 rotates, driving the rack 123 meshed with it to move in the vertical direction. Then the lifting seat 124 is lifted or lowered. The lifting seat 124 drives the grinding shaft 125 installed at the bottom thereof to rise and fall synchronously, so as to provide the space required for the installation or removal of the grinder 140. The grinding shaft 125 is limited by the second through hole 1242 and the third through hole to achieve stable rotation and lifting motion.

[0055] A second opening 1255 is provided at the bottom of the grinding shaft 125 to be connected to the rotating component of the grinder 140. When the grinder 140 is placed under the grinding shaft 125, the first motor 111 drives the grinding shaft 125 to rotate slowly, and at the same time, the second motor 121 drives the lifting seat 124 to slowly descend, so that the second opening 1255 is aligned with the rotating component of the grinder 140, and then the grinding shaft 125 and the rotating component of the grinder 140 are docked.

[0056] It should be noted that the opening depth of the first opening 1251 is the same as the lifting stroke of the grinding shaft 125. When the grinding shaft 125 is lifted, the first transmission shaft 112 installed in the first opening 1251 at the top of the grinding shaft 125 does not move.

[0057] In this embodiment, the second motor 121 in the lifting mechanism 20 drives the second transmission shaft 122 to rotate, so as to drive the transmission gear 123 to rotate, wherein the meshing connection between the transmission gear 123 and the rack 12411 realizes the lifting and lowering movement of the lifting seat 124 and the grinding shaft 125 in the vertical direction, and also realizes the lifting and lowering of the grinding shaft 125 without causing the displacement of the first transmission shaft 112 through the first opening 1251 opened at the top of the grinding shaft 125; the second through hole 1242 and the third through hole set at the top and bottom of the lifting seat 124 limit the grinding shaft 125, and at the same time, the bottom of the grinding shaft 125 is connected to the rotating component of the grinder 140, which finally realizes that while providing an operating space for placing or removing the grinder 140, the shaking phenomenon caused by the grinding shaft 125 driving the rotating component of the grinder 140 to rotate is avoided.

[0058] Reference Figure 4 As shown, in order to make the grinding shaft 125 more effectively drive the rotating component of the grinder 140 to rotate, the grinding shaft 125 provided in this embodiment has a second opening 1255 at the bottom thereof with a connecting groove 1256 at the top, and the connecting groove 1256 is arranged opposite to the center of the second opening 1255.

[0059] During specific implementation, the connection groove 1256 is docked with a connection piece disposed on the top of the rotating component of the grinder 140 to provide a torque to the rotating component of the grinder 140, thereby driving the rotating component of the grinder 140 to rotate.

[0060] Reference Figure 4 As shown, in order to reduce the abnormal noise generated when the grinding shaft 125 is connected to the rotating member of the grinder 140, in the grinding shaft 125 provided in this embodiment, a first chamfer 1257 is provided on one side of the connecting groove 1256 close to the second opening 1255. The first chamfer 1257 is inclined from the bottom of the grinding shaft 125 to the top of the grinding shaft 125.

[0061] Reference Figure 5As shown, the inclination angle α of the first chamfer 1257 is 30°-60°.

[0062] Preferably, the inclination angle α of the first chamfer 1257 is 45°.

[0063] During the specific implementation, the operator found that the grinding shaft 125 would make an abnormal sound when it was docked with the rotating member of the grinder 140. After further use, it was found that the male corner of the connecting groove 1256 near the second opening 1255 was worn. It can be judged that when the grinding shaft 125 is docked with the rotating member of the grinder 140, since the grinding shaft 125 is in a state of continuous rotation and decline, the connecting piece at the top of the rotating member of the grinder 140 rubs against the above-mentioned male corner. At the moment when the connecting piece at the top of the rotating member of the grinder 140 is aligned with the connecting groove 1256, the grinding shaft 125 quickly descends and hits the rotating member of the grinder 140, thus causing the abnormal sound.

[0064] By setting a first chamfer 1257 on one side of the connecting groove 1256 close to the second opening 1255, the connecting piece at the top of the rotating component of the grinder 140 is buffered during the descending process of the grinding shaft 125, thereby reducing abnormal noise and the wear of the grinding shaft 125.

[0065] Reference Figure 4 As shown, in order to prevent the grinding shaft 125 from rotating downward and causing the rotating component of the grinder 140 to pop out when the grinder 140 is placed offset, in the grinding shaft 125 provided in this embodiment, a second chamfer 1258 is provided on one side of the second opening 1255 close to the bottom of the grinding shaft 125.

[0066] Furthermore, the second chamfer 1258 is inclined from the bottom of the grinding shaft 125 toward the top of the grinding shaft 125 .

[0067] Reference Figure 5 As shown, the inclination angle β of the second chamfer 1258 is 20°-80°.

[0068] Preferably, the inclination angle β of the second chamfer 1258 is 60°.

[0069] In specific implementation, when the grinding shaft 125 is in a state of rotating downward, the top of the rotating member of the grinder 140 contacts the second chamfer 1258. Since the second chamfer 1258 is inclined from the bottom of the grinding shaft 125 to the top of the grinding shaft 125, the top of the rotating member of the grinder 140 slides along the second chamfer 1258 toward the center axis of the grinding shaft 125.

[0070] By setting a second chamfer 1258 on one side of the second opening 1255 close to the bottom of the grinding shaft 125, the contact range between the rotating component of the grinder 140 and the second opening 1255 is increased, and the rotating component of the grinder 140 can be quickly slid toward the center of gravity axis position of the grinding shaft 125 by relying on the inclination angle of the second chamfer 1258, thereby preventing the rotating component of the grinder 140 from popping out during the docking process of the grinding shaft 125 and the grinder 140, and improving the docking efficiency of the grinding shaft 125 and the rotating component of the grinder 140.

[0071] Embodiment 2

[0072] Reference Figure 2 As shown, in order to prevent the first transmission shaft 112 from being worn during the process of driving the grinding shaft 125 to rotate, resulting in reduced transmission efficiency, in the novel biological cell grinding device 100 provided in this embodiment, a limiting groove 1252 is provided on the side wall of the grinding shaft 125, a sixth through hole 1121 is provided at the bottom of the first transmission shaft 112, and a limiting pin is installed between the limiting groove 1252 and the sixth through hole 1121. The limiting pin passes through the sixth through hole 1121 and is slidably connected to the limiting groove 1252.

[0073] In a specific implementation, the stop pin passes through the sixth through hole 1121 provided at the bottom of the first transmission shaft 112 and is slidably connected with the stop slot 1252 provided on the side wall of the grinding shaft 125. The diameter of the sixth through hole 1121 corresponds to the stop pin. The width of the stop slot 1252 corresponds to the diameter of the stop pin, and both ends of the stop pin contact the inner wall of the stop slot 1252, so that the grinding shaft 125 is driven to rotate by the stop pin 1252.

[0074] Preferably, the limiting pin is a pin body.

[0075] Optionally, the limiting pin may be a bolt.

[0076] It should be noted that the length of the limiting groove 1252 corresponds to the lifting stroke of the grinding shaft 125 . When the grinding shaft 125 performs a vertical lifting motion, the limiting pin slides in the limiting groove 1252 .

[0077] In this embodiment, the first transmission shaft 112 drives the grinding shaft 125 to rotate through the limit pin, wherein the torque generated by the first transmission shaft 112 is transmitted through the limit pin and acts on the inner wall of the limit groove 1252, thereby avoiding the reduction of transmission efficiency due to the wear of the shaft body of the first transmission shaft 112 and improving the reliability of transmission.

[0078] Embodiment 3

[0079] Reference Figure 2As shown, in order to facilitate the disassembly and maintenance of the limit pin, in the novel biological cell grinding device 100 provided in this embodiment, a seventh through hole 1245 is opened on the side wall of the lifting seat 124.

[0080] During specific implementation, the limiting pin is disassembled, assembled and repaired through the seventh through hole 1245 , without removing the first transmission shaft 112 and / or the grinding shaft 125 installed in the lifting seat 124 .

[0081] In this embodiment, by opening the seventh through hole 1245 on the side wall of the lifting seat 124, an operating space is provided for disassembling and inspecting the limit pin, thereby reducing the difficulty of disassembling and inspecting the limit pin.

[0082] Embodiment 4

[0083] Reference Figure 2 As shown, in order to improve the durability of the grinding shaft 125 , in the novel biological cell grinding device 100 provided in this embodiment, a first bearing 1253 and a second bearing 1254 are respectively installed between the second through hole 1242 and the third through hole and the grinding shaft 125 .

[0084] In specific implementation, the grinding shaft 125 passes through the second through hole 1242 and the third through hole, and the first bearing 1253 is assembled between the second through hole 1242 and the grinding shaft 125. The outer wall of the first bearing 1253 is tightly connected with the inner wall of the second through hole 1242, and the inner wall of the first bearing 1253 is tightly connected with the outer wall of the grinding shaft 125.

[0085] The second bearing 1254 is mounted between the third through hole and the grinding shaft 125. The outer wall of the second bearing 1254 is tightly connected with the inner wall of the third through hole, and the inner wall of the second bearing 1254 is tightly connected with the outer wall of the grinding shaft 125.

[0086] In this embodiment, by respectively assembling the first bearing 1253 and the second bearing 1254 between the second through hole 1242 and the third through hole and the grinding shaft 125, friction between the outer wall of the grinding shaft 125 and the inner wall of the second through hole 1242 and the inner wall of the third through hole is avoided, thereby improving the service life of the grinding shaft 125, further reducing the friction force on the grinding shaft 125, and improving the rotation efficiency of the grinding shaft 125.

[0087] Embodiment 5

[0088] Reference Figure 2 As shown, in order to improve the durability of the second transmission shaft 122 , in the novel biological cell grinding device 100 provided in this embodiment, a third bearing 1221 is installed between the fourth through hole 1261 and the second transmission shaft 122 , and a fourth bearing 1222 is installed between the fifth through hole 1271 and the second transmission shaft 122 .

[0089] In specific implementation, the second transmission shaft 122 passes through the fourth through hole 1261 and the fifth through hole 1271, and the third bearing 1221 is assembled between the fourth through hole 1261 and the second transmission shaft 122, and the outer wall of the third bearing 1221 is tightly connected to the inner wall of the fourth through hole 1261, and the inner wall of the third bearing 1221 is tightly connected to the outer wall of the second transmission shaft 122.

[0090] The fourth bearing 1222 is assembled between the fifth through hole 1271 and the second transmission shaft 122 , and the outer wall of the fourth bearing 1222 is tightly connected with the inner wall of the fifth through hole 1271 , and the inner wall of the fourth bearing 1222 is tightly connected with the outer wall of the second transmission shaft 122 .

[0091] In this embodiment, by respectively assembling the third bearing 1221 and the fourth bearing 1222 between the fourth through hole 1261 and the fifth through hole 1271 and the second transmission shaft 122, friction between the outer wall of the second transmission shaft 122 and the inner wall of the fourth through hole 1261 and the inner wall of the fifth through hole 1271 is avoided, thereby improving the service life of the second transmission shaft 122, further reducing the friction force on the second transmission shaft 122, and improving the rotation efficiency of the second transmission shaft 122.

[0092] Embodiment 6

[0093] Reference Figure 7 As shown, in order to improve the docking efficiency between the grinding shaft 125 and the rotating component of the grinder 140 , the novel biological cell grinding device provided in this embodiment may further include a floating mechanism 130 , which is disposed below the grinding shaft 125 .

[0094] During specific implementation, the grinder 140 is placed on the top surface of the floating mechanism 130 , and the grinding shaft 125 slowly rotates and descends to complete the docking of the grinding shaft 125 and the rotating component of the grinder 140 .

[0095] Combination Figure 1 and Figure 2 See also Figure 6 The floating mechanism 130 includes a floating plate 131, a floating shaft 132, a bushing 133 and a fourth fixing portion 134 from top to bottom. The floating plate 131 is provided with a second connecting portion 1311, the second connecting portion 1311 is detachably connected to the floating shaft 132, the floating shaft 132 is movably connected to the bushing 133, a spring is provided between the bottom of the floating shaft 132 and the top of the fourth fixing portion 134, and the bushing 133 is connected to the fourth fixing portion 134.

[0096] In a specific implementation, the floating plate 131 is used to support the grinder 140. The second connecting portion 1311 is detachably connected to the floating shaft 132, the floating shaft 132 is movably connected to the bushing 133, a spring is provided between the bottom of the floating shaft 132 and the top of the fourth fixing portion 134, and the bushing 133 is connected to the fourth fixing portion 134, so that the floating plate 131 has an elastic floating displacement range.

[0097] When the grinding shaft 125 slowly rotates down and docks with the rotating component of the grinder 140, and the second opening 1255 is not aligned with the rotating component of the grinder 140, the grinding shaft 125 applies downward pressure to the grinder 140, causing the floating plate 131 to sink; since the contact position between the bottom side wall of the grinding shaft and the top of the rotating component of the grinder 140 is not at the center of gravity of the grinder 140, the grinder 140 and the floating plate 131 are tilted, and the elastic force provided by the spring arranged between the bottom of the floating shaft 132 and the top of the fourth fixing part 134 causes the grinder 140 to bounce upward, and the rotating component of the grinder 140 rotates and slides into the second opening 1255, thereby quickly completing the docking of the grinding shaft 125 and the rotating component of the grinder 140.

[0098] Furthermore, a flexible gasket is disposed on the top surface of the floating plate 131 .

[0099] The flexible gasket can be made of one of silicone or natural rubber, chloroprene rubber, nitrile rubber, fluororubber, chlorosulfonated polyethylene synthetic rubber, ethylene propylene rubber, and flexible graphite.

[0100] During specific implementation, the flexible gasket can buffer the grinder 140 , further improving the success rate of the connection between the grinding shaft 125 and the rotating component of the grinder 140 .

[0101] In summary, compared with the prior art, the cell grinding device provided by the utility model provides a first chamfer on the side of the connecting groove close to the second opening, so that the connecting piece at the top of the rotating component of the grinder is buffered during the descending process of the grinding shaft, thereby reducing abnormal noise and the wear of the grinding shaft.

[0102] By arranging a second chamfer on one side of the second opening close to the bottom of the grinding shaft, the contact range between the grinder rotating member and the second opening is increased, and the grinder rotating member is quickly slid toward the center of gravity axis position of the grinding shaft by relying on the inclination angle of the second chamfer, thereby preventing the grinder rotating member from popping out during the docking process of the grinding shaft and the grinder, and improving the docking efficiency between the grinding shaft and the grinder rotating member.

[0103] In addition, those skilled in the art should understand that, although there are many problems in the prior art, each embodiment or technical solution of the utility model can be improved in only one or several aspects, without having to solve all the technical problems listed in the prior art or background technology at the same time. Those skilled in the art should understand that the content not mentioned in a claim should not be used as a limitation on the claim.

[0104] Although the terms such as driving mechanism, motor, transmission shaft, through hole, fixing part, lifting mechanism, bearing, transmission gear, lifting seat, connecting part, rack, grinding shaft, opening, limit groove, limit pin, floating mechanism, floating plate, floating shaft, bushing, grinder housing, hatch, observation hole, flexible gasket, etc. are used more frequently in this article, the possibility of using other terms is not excluded. The use of these terms is only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model; the terms "first", "second", etc. (if any) in the description and claims of the embodiments of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0105] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A novel biological cell grinding device, characterized in that: It comprises a driving mechanism (110) and a lifting mechanism (120), wherein the driving mechanism (110) is arranged above the lifting mechanism (120); The driving mechanism (110) comprises a first motor (111), a first transmission shaft (112) and a first fixing portion (113); the first transmission shaft (112) is movably connected to the first motor (111); the first motor (111) is detachably connected to the first fixing portion (113); and the first fixing portion (113) is provided with a first through hole (1131) for accommodating the first transmission shaft (112); The lifting mechanism (120) comprises a second motor (121), a second transmission shaft (122), a transmission gear (123), a lifting seat (124), a grinding shaft (125), a second fixing portion (126) and a third fixing portion (127); the second motor (121) is movably connected to the second transmission shaft (122); the second transmission shaft (122) is tightly connected to the transmission gear (123); the lifting seat (124) is provided with a first connecting portion (1241) for mounting a rack (12411); the transmission gear (123) is meshed with the rack (12411); the top and bottom of the lifting seat (124) are respectively provided with a second through hole (1242) and a third through hole for mounting the grinding shaft (125); the second fixing portion (126) and the third fixing portion (127) are respectively provided with a fourth through hole (1261) and a fifth through hole (1271) for mounting the second transmission shaft (122); The top of the grinding shaft (125) is provided with a first opening (1251) for accommodating the first transmission shaft (112); the bottom of the grinding shaft (125) is provided with a second opening (1255); the top of the second opening (1255) is provided with a connecting groove (1256); the connecting groove (1256) is arranged opposite to the center of the second opening (1255); a first chamfer (1257) is arranged on a side of the connecting groove (1256) close to the second opening (1255); and a second chamfer (1258) is arranged on a side of the second opening (1255) close to the bottom of the grinding shaft (125).

2. The novel biological cell grinding device according to claim 1 is characterized in that: The first chamfer (1257) is inclined from the bottom of the grinding shaft (125) toward the top of the grinding shaft (125), and the inclination angle of the first chamfer (1257) is 30°-60°.

3. The novel biological cell grinding device according to claim 1 is characterized in that: The second chamfer (1258) is inclined from the bottom of the grinding shaft (125) toward the top of the grinding shaft (125), and the inclination angle of the second chamfer (1258) is 20°-80°.

4. The cell grinding device according to claim 1, characterized in that: A limiting groove (1252) is provided on the side wall of the grinding shaft (125), a sixth through hole (1121) is provided on the bottom of the first transmission shaft (112), a limiting pin is installed on the limiting groove (1252) and the sixth through hole (1121), and the limiting pin passes through the sixth through hole (1121) and is slidably connected to the limiting groove (1252).

5. The novel biological cell grinding device according to claim 1 is characterized in that: A first bearing (1253) and a second bearing (1254) are respectively mounted between the second through hole (1242) and the third through hole and the grinding shaft (125).

6. The novel biological cell grinding device according to claim 1 is characterized in that: A third bearing (1221) is assembled between the fourth through hole (1261) and the second transmission shaft (122), and a fourth bearing (1222) is assembled between the fifth through hole (1271) and the second transmission shaft (122).

7. The novel biological cell grinding device according to any one of claims 1 to 6, characterized in that: It also includes a floating mechanism (130), wherein the floating mechanism (130) is arranged below the grinding shaft (125); The floating mechanism (130) comprises, from top to bottom, a floating plate (131), a floating shaft (132), a bushing (133) and a fourth fixing portion (134); the floating plate (131) is provided with a second connecting portion (1311); the second connecting portion (1311) is detachably connected to the floating shaft (132); the floating shaft (132) is movably connected to the bushing (133); a spring is provided between the bottom of the floating shaft (132) and the top of the fourth fixing portion (134); and the bushing (133) is connected to the fourth fixing portion (134).

8. The novel biological cell grinding device according to claim 7 is characterized in that: A flexible gasket is provided on the top surface of the floating plate (131).

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