A handheld tissue shredder

Abstract

This application relates to a handheld tissue grinder, belonging to the field of biomedical engineering technology. It includes a body and a clamping assembly. A stirring element is rotatably connected to one end of the body, and the stirring element is parallel to the height direction of the body along its rotation axis. The clamping assembly includes multiple clamping plates located at the end of the stirring element away from the body. Adjacent clamping plates are joined to form a clamping area, which is continuous along the height direction of the body. The projection of the stirring element along the height direction of the body lies within the clamping area. The clamping plates are slidably connected to the body along a first direction, perpendicular to the height direction of the body, to adjust the width of the clamping area in the first direction. This application has the effect of clamping centrifuge tubes of different sizes.

Description

Technical Field

[0001] This application relates to the field of biomedical engineering technology, and in particular to a handheld tissue shredder. Background Technology

[0002] Primary cell extraction and separation refers to the process of obtaining target cells from tissues after dispersing them into cell suspensions. Obtaining high-purity, high-activity primary cells is one of the key factors for the success of many cell experiments. Tissue pulverization is one of the key steps in the primary cell extraction process, and benchtop or large tissue pulverizers are generally used for cell extraction.

[0003] In related technologies, before cell extraction, the tissue is first cut into smaller clumps or a paste, and then placed into a centrifuge tube. The homogenizing blade of a tissue homogenizer is then inserted into the centrifuge tube and driven to rotate, so that the homogenizing blade can stir and pulverize the tissue to achieve tissue extraction and separation. Since the benchtop homogenizer is large in size and the centrifuge tube is generally small in size, it is inconvenient for personnel to operate during experiments.

[0004] Regarding the aforementioned technologies, to facilitate operation, a handheld tissue homogenizer is used for cell extraction. The operator holds the homogenizer, inserts the homogenizing blade into a centrifuge tube containing the tissue, and presses a button to rotate the blade. Since centrifuge tubes come in different sizes, the operator must hold the homogenizer with one hand and the centrifuge tube with the other, ensuring the homogenizing blade is centered within the tube. The operator must constantly monitor the centrifuge tube and the blade's position, making the operation cumbersome. Therefore, there is an urgent need for a handheld homogenizer capable of clamping centrifuge tubes of different sizes. Summary of the Invention

[0005] In order to clamp centrifuge tubes of different sizes, this application provides a handheld tissue grinder.

[0006] The handheld tissue shredder provided in this application adopts the following technical solution:

[0007] A handheld tissue shredder includes a body and a clamping assembly;

[0008] A stirring element is rotatably connected to one end of the machine body, and the stirring element is parallel to the height direction of the machine body along the rotation axis of the machine body;

[0009] The clamping assembly includes multiple clamping plates, which are located at the end of the stirring member away from the machine body. Two adjacent clamping plates are joined together to form a clamping area. The clamping area is in a through state along the height direction of the machine body. The projection of the stirring member along the height direction of the machine body is located within the clamping area. The clamping plates are slidably connected to the machine body along a first direction, which is perpendicular to the height direction of the machine body, so as to adjust the width of the clamping area in the first direction.

[0010] By adopting the above technical solution, when using a handheld tissue grinder, the operator needs to hold the grinder with one hand and the centrifuge tube with the other. Due to the different specifications of the centrifuge tubes, for centrifuge tubes with different outer diameters, the operator needs to insert the stirring rod used for grinding tissue into the centrifuge tube and try to keep the stirring rod in the center of the centrifuge tube. The overall operation is relatively cumbersome. To address this, by setting up clamping plates, the centrifuge tube is clamped by two adjacent clamping plates, and the clamping plates are slidably connected to the machine body along the first direction. The width between the two clamping plates can be adjusted according to the different outer diameters of the centrifuge tubes.

[0011] Optionally, an arc-shaped groove is provided on the side of two adjacent clamping plates that are close to each other, and the arc-shaped groove extends through the clamping plate along the height direction of the machine body.

[0012] By adopting the above technical solution, since the centrifuge tube itself is a cone shape with the outer diameter gradually decreasing along the height direction, in order to clamp the centrifuge tube more firmly, an arc-shaped groove is opened on the side of the two adjacent clamping plates that are close to each other, so that the centrifuge tube can be clamped by the arc-shaped clamping plate.

[0013] Optionally, a stirring head is fixedly connected to the end of the stirring component away from the machine body, and the outer diameter of the stirring head gradually decreases towards the side away from the machine body.

[0014] By adopting the above technical solution, in order to make the stirring component more adaptable to the shape of the centrifuge tube, a stirring head with a gradually decreasing outer diameter is set to better match the centrifuge tube.

[0015] Optionally, it also includes a sliding assembly, which includes a sliding seat and a connector. The sliding seat is sleeved on the machine body and is slidably connected to the machine body along the height direction of the machine body. The sliding seat and the clamping plate are connected through the connector, one end of which is connected to the sliding seat and the other end is directly or indirectly connected to the clamping plate.

[0016] By adopting the above technical solution, since centrifuge tubes have different sizes and specifications, a sliding seat is set to slide along the height direction of the machine body, and the clamping plate is further driven to slide along the height direction of the machine body through the connecting parts, so that the clamping plate can clamp centrifuge tubes with different height requirements.

[0017] Optionally, the clamping assembly further includes a screw and a first telescopic rod;

[0018] The screw is parallel to the first direction, the screw passes through two adjacent clamping plates, the screw is parallel to the first direction along the rotation axis of the clamping plate, the clamping plate is slidably connected to the screw along the length of the screw, and the screw threads connected to two adjacent clamping plates have opposite directions;

[0019] The first telescopic rod is parallel to the screw, and the first telescopic rod is fixedly connected between the connector and the clamping plate. The movable section and the fixed section of the first telescopic rod are slidably connected at their closest ends.

[0020] By adopting the above technical solution, in order to drive the clamping plate to slide along the first direction, a screw is passed through two adjacent clamping plates so that the rotation of the screw can drive the two clamping plates to move closer or further apart along the length of the screw. In addition, in order to fix one of the clamping plates, a telescopic rod is fixedly connected between the connector and the clamping plate. When the clamping plate slides along the screw, the telescopic rod can provide sliding space for the clamping plate.

[0021] Optionally, it also includes a guide rod, one end of which passes through the clamping plate, and the clamping plate is slidably connected to the guide rod along the length of the guide rod.

[0022] By adopting the above technical solution, in order to guide the sliding of the clamping plate along the screw, a guide rod passing through the clamping plate is used for guidance.

[0023] Optionally, the clamping assembly further includes a first elastic element, which is sleeved on the first telescopic rod. One end of the first elastic element is fixedly connected to the end of the connector away from the sliding seat, and the other end is fixedly connected to the clamping plate. The telescopic direction of the first elastic element is parallel to the first direction.

[0024] By adopting the above technical solution, when the screw is rotated to drive the clamping plate to slide, the movable section of the telescopic rod will move accordingly. When the clamping plate slides to the clamping position, in order to position the clamping plate, a first elastic element is fixedly connected between the connector and the clamping plate. Under the action of the first elastic element, the clamping plate can be positioned and fixed.

[0025] Optionally, the connector includes a first connecting segment and a second connecting segment;

[0026] The first connecting segment is parallel to the height direction of the body, and the first connecting segment is directly or indirectly connected to the sliding seat;

[0027] The second connecting segment is perpendicular to the first connecting segment. One end of the second connecting segment is rotatably connected to the end of the first connecting segment away from the sliding seat, and the other end is fixedly connected to the first telescopic rod. The second connecting segment is parallel to the second direction along the rotation axis of the first connecting segment, and the second direction is perpendicular to the first direction.

[0028] By adopting the above technical solution, in some tissue pulverization experiments, a workbench for fixing the pulverizer is provided. Personnel can fix the pulverizer on the workbench to carry out the pulverization experiment. The workbench consists of a base and a fixing rod. The fixing rod is used to fix the pulverizer. For this purpose, the second connecting section is rotatably connected to the first connecting section. When the second connecting section rotates along the first connecting section to the side away from the stirring component, it simultaneously drives the clamping plate to rotate along the first connecting section, so that the two clamping plates are fixed on the fixing rod of the workbench, thereby further realizing the fixation of the entire pulverizer.

[0029] Optionally, the outer peripheral wall of the sliding seat is provided with a second sliding groove along its own circumference, the first connecting section is fixedly connected to the second slider on the side near the sliding seat, the second slider is slidably connected to the sliding seat along the groove wall of the second sliding groove, and the first connecting section is fixedly connected to the second slider.

[0030] By adopting the above technical solution, in order to make it easier to adjust the fixed position of the clamping plate, the first connecting section is slidably connected to the sliding seat along the groove wall of the second sliding groove through the first slider, so as to expand the position adjustment range of the clamping plate.

[0031] Optionally, it also includes a limiting component, which further includes a protrusion, a first rotating shaft, a cam, a second elastic element and a limiting block, and the outer wall of the sliding seat is provided with a first sliding groove along the height direction of the machine body;

[0032] The protrusion is fixedly connected to the outer wall of the sliding seat, and a through groove is provided through the side wall of the protrusion, which communicates with the first sliding groove;

[0033] The first rotating shaft is parallel to the height direction of the machine body. The first rotating shaft is located in the through groove of the protrusion. The first rotating shaft is rotatably connected to the groove wall of the through groove. The rotation axis of the first rotating shaft along the groove wall is perpendicular to the height direction of the machine body. The cam is fixedly sleeved on the first rotating shaft.

[0034] At the connection between the protrusion and the sliding seat, and near the first sliding groove, a through hole is provided along the height direction of the body. One end of the second elastic member is fixedly connected to the wall of the through hole, and the other end is fixedly connected to the limiting block. The cam contacts the limiting block. Under recoverable deformation, the second elastic member has a force that drives the limiting block to move away from the first sliding groove. When the protruding part of the cam contacts the limiting block, the limiting block abuts against the groove wall of the first sliding groove.

[0035] By adopting the above technical solution, since the centrifuge tubes have different heights, the clamping plate needs to be slid to the clamping position and then fixed. To this end, the rotation of the first rotating shaft drives the protruding part of the cam to contact the limiting member. Under the action of the second elastic member, the limiting member moves towards the first sliding groove and abuts against the groove wall of the first sliding groove, further blocking the sliding seat from sliding along the machine body and further fixing the position of the clamping plate.

[0036] In summary, this application includes at least one of the following beneficial technical effects:

[0037] 1. This application can clamp centrifuge tubes of different outer diameters by sliding the clamping plate along the first direction;

[0038] 2. The second connecting section of this application is rotatable along the first connecting section to the side away from the mixing component, so that it can be fixed on the worktable by the clamping plate;

[0039] 3. This application uses a limiting component to limit and fix the sliding seat along the body. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the overall structure of a handheld tissue shredder according to this application;

[0041] Figure 2 This is a structural schematic diagram of the body and stirring component of this application;

[0042] Figure 3 This is a schematic diagram of the structure of the sliding component of this application;

[0043] Figure 4 This is a schematic diagram of the structure of the clamping component of this application;

[0044] Figure 5 This is a schematic diagram of the structure of the limiting component of this application;

[0045] Figure 6 This is an enlarged view of part A;

[0046] Figure 7 This is a schematic diagram of the structure of the first connecting section and the sliding seat in this application;

[0047] Figure 8 This is a structural diagram of the second connecting segment and the first connecting segment of this application.

[0048] Explanation of reference numerals in the attached drawings: 01, centrifuge tube; 1, machine body; 11, stirring component; 12, button; 13, stirring head; 14, first slide groove; 2, sliding assembly; 21, sliding seat; 211, second slide groove; 22, connecting component; 221, first connecting section; 2211, second slider; 2212, fixing component; 222, second connecting section; 2221, mounting base; 2222, second rotating shaft; 3, clamping assembly; 31, clamping plate; 311, clamping area; 312, arc groove; 32, first telescopic rod; 33, screw; 34, first elastic element; 4, guide rod; 5, limiting assembly; 51, protrusion; 511, through groove; 512, through hole; 513, handle; 52, cam; 53, first rotating shaft; 54, limiting block; 55, second telescopic rod; 56, second elastic element. Detailed Implementation

[0049] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0050] This application discloses a handheld tissue grinder. (Refer to...) Figure 1 The handheld tissue grinder includes a body 1, a sliding component 2, and a clamping component 3. The sliding component 2 is slidably connected to the body 1 along the height direction of the body 1, and the clamping component 3 is slidably connected to the sliding component 2 along a first direction perpendicular to the height direction of the body 1, so that the centrifuge tube 01 can be clamped and fixed by the clamping component 3.

[0051] Reference Figure 2 In order to pulverize and separate the tissue in the centrifuge tube 01, a stirring element 11 is rotatably connected to one end of the machine body 1. The stirring element 11 is parallel to the height direction of the machine body 1 along the rotation axis of the machine body 1. A button 12 is provided on the outer wall of the machine body 1 to control the rotation of the stirring element. In order to make the end of the stirring element 11 that extends into the centrifuge tube 01 more adaptable to the shape of the centrifuge tube 01, a stirring head 13 is fixedly connected to the end of the stirring element 11 away from the machine body 1. The outer diameter of the stirring head 13 gradually decreases on the side away from the machine body 1. In use, one end of the stirring rod is inserted into the centrifuge tube 01, and the button 12 is pressed to drive the stirring element 11 to rotate, so as to stir and pulverize the tissue in the centrifuge tube 01.

[0052] Reference Figure 3The sliding assembly 2 includes a sliding seat 21 and a connector 22. The sliding seat 21 is sleeved on the body 1 and is slidably connected to the body 1 along the height direction of the body 1. The outer wall of the sliding seat 21 is connected to the connector 22. The sliding seat 21 is connected to the clamping assembly 3 through the connector 22. When the sliding seat 21 slides along the height direction of the body 1, the connector 22 drives the clamping assembly 3 to slide along the height direction of the body 1, so that the clamping assembly 3 can clamp the centrifuge tubes 01 at different height positions. In this embodiment, the cross-section of the sliding seat 21 is annular.

[0053] Reference Figure 3 and Figure 4 The connector 22 includes a first connecting segment 221 and a second connecting segment 222. The first connecting segment 221 is directly or indirectly connected to the outer peripheral wall of the sliding seat 21 and is parallel to the height direction of the body 1. The second connecting segment 222 is perpendicular to the first connecting segment 221 and is directly or indirectly connected to the end of the first connecting segment 221 away from the body 1. The second connecting segment 222 is located on the side of the first connecting segment 221 closer to the stirring component 11. The clamping assembly 3 includes multiple clamping plates 31. In this embodiment, two clamping plates 31 are provided. The clamping plates 31 are located on the side closer to the second connecting segment 222. Two adjacent clamping plates 31 are spliced ​​to form a clamping area 311. The clamping area 311 is located on the body. The height direction of the machine body 1 is through, and the projection of the stirring component 11 along the height direction of the machine body 1 is located in the clamping area 311. An arc-shaped groove 312 is opened on the side of the two clamping plates 31 that are close to each other. The arc-shaped groove 312 passes through the clamping plate 31 along the height direction of the machine body 1 so that the centrifuge tube 01 is clamped and fixed by the arc-shaped clamping plate 31. The central axis of the clamping area 311 coincides with the central axis of the stirring head 13. In order to fix the clamping plate 31, the clamping assembly 3 also includes a first telescopic rod 32. The first telescopic rod 32 is located between the second connecting section 222 and the clamping plate 31. The first telescopic rod 32 is parallel to the first direction. The fixed section of the first telescopic rod 32 is fixedly connected to the second connecting section 222. The movable section of the first telescopic rod 32 away from the fixed section is fixedly connected to the clamping plate 31. The fixed section and the movable section of the first telescopic rod 32 are slidably connected so that the clamping plate 31 is fixed by the first telescopic rod 32.

[0054] Reference Figure 4Since the centrifuge tubes 01 have different volumes, i.e. different outer diameters, in order for the clamping plate 31 to adapt to centrifuge tubes 01 with different outer diameters, the clamping assembly 3 also includes a screw 33. The screw 33 is parallel to the first telescopic rod 32 and passes through the two clamping plates 31. The screw 33 connected to the two clamping plates 31 rotates in opposite directions. The screw 33 is rotatably connected to the clamping plate 31. The screw 33 is parallel to the first direction along the rotation axis of the clamping plate 31. The clamping plate 31 is slidably connected to the screw 33 along the length direction of the screw 33, so that the rotation of the screw 33 drives the two clamping plates 31 to move closer or further away from each other along the length direction of the screw 33, thereby achieving the clamping of centrifuge tubes 01 with different outer diameters.

[0055] Reference Figure 4 In order to guide the sliding of the clamping plate 31 along the screw 33, the handheld tissue pulverizer also includes a guide rod 4, which is parallel to the screw 33 and passes through the two clamping plates 31. The clamping plates 31 are slidably connected to the guide rod 4 along the length of the guide rod 4.

[0056] Reference Figure 4 When the screw 33 rotates and causes the clamping plate 31 to slide, the first telescopic rod 32 will extend or shorten accordingly. In order to fix the first telescopic rod 32, the clamping assembly 3 also includes a first elastic element 34. One end of the first elastic element 34 is fixedly connected to the second connecting section 222, and the other end is fixedly connected to one of the clamping plates 31. The extension and retraction direction of the first elastic element 34 is parallel to the first direction. Under recoverable deformation, the first elastic element 34 has a force that drives the clamping plate 31 to move towards the side closer to the second connecting section 222. In this embodiment, the first elastic element 34 is a tension spring.

[0057] Reference Figure 5 and Figure 6 In order to limit the sliding of the sliding seat 21 along the height direction of the machine body 1, the handheld tissue pulverizer also includes a limiting component 5. The limiting component 5 includes a protrusion 51, a cam 52, a first rotating shaft 53, a limiting block 54, a second telescopic rod 55, and a second elastic element 56. The outer wall of the machine body 1 is provided with a first sliding groove 14 along its own height direction. The protrusion 51 is fixedly connected to the outer wall of the sliding seat 21. The protruding part of the protrusion 51 is away from the sliding seat 21. A through groove 511 is provided through the side wall of the protrusion 51. The through groove 511 is connected to the first sliding groove 14. The first rotating shaft 53 is parallel to the height direction of the machine body 1. The first rotating shaft 53 is located in the through groove 511 of the protrusion 51. The first rotating shaft 53 is rotatably connected to the groove wall of the through groove 511. The rotation axis of the first rotating shaft 53 along the groove wall of the through groove 511 is perpendicular to the height direction of the machine body 1. The cam 52 is fixedly sleeved on the first rotating shaft 53.

[0058] Reference Figure 5 and Figure 6At the connection between the protrusion 51 and the sliding seat 21, and near the first sliding groove 14, a through hole 512 is provided along the height direction of the body 1. The second telescopic rod 55 is perpendicular to the height direction of the body 1. The fixed section of the second telescopic rod 55 is fixedly connected to the wall of the through hole 512, and the movable section of the second telescopic rod 55 is fixedly connected to the limit block 54. The fixed section and the movable section of the second telescopic rod 55 are slidably connected. The second elastic member 56 is sleeved on the second telescopic rod 55. One end of the second elastic member 56 is fixedly connected to the wall of the through hole 512, and the other end is fixedly connected to the limit block 54. The extension and retraction directions of the second elastic element 56 are parallel to the extension rod. Under recoverable deformation, the second elastic element 56 has a force that drives the limiting block 54 to move away from the first slide groove 14. In this embodiment, the second elastic element 56 is a tension spring, the first slide groove 14 is an arc-shaped groove, and the side of the limiting block 54 near the first slide groove 14 is arc-shaped, with the arc-shaped opening facing away from the first slide groove 14. One arc-shaped end of the limiting block 54 is located in the first slide groove 14, and the other end is located in the through groove 511. The position of the limiting block 54 and the first slide groove 14 are different depending on the position of the cam 52, as detailed below:

[0059] When the first rotating shaft 53 rotates and drives the protruding part of the cam 52 to contact the limiting block 54, the second elastic element 56 is in a stretched state, the limiting block 54 moves toward the side of the first slide groove 14, and the arc-shaped side of the limiting block 54 abuts against the groove wall of the first slide groove 14. At this time, the limiting block 54 blocks the sliding seat 21 from sliding along the height direction of the machine body 1, that is, the sliding seat 21 cannot continue to slide along the machine body 1.

[0060] When the first rotating shaft 53 drives the protruding part of the cam 52 to separate from the limiting block 54, the second elastic element 56 returns from the stretched state to the normal state, and the limiting block 54 gradually moves away from the first slide groove 14. The arc-shaped side of the limiting block 54 separates from the side wall of the first slide groove 14, so that the sliding seat 21 can continue to slide along the height direction of the body 1.

[0061] Reference Figure 5 To facilitate use, a handle 513 is fixedly connected to the side wall of the protrusion 51. When the operator rotates the handle 513, the first rotating shaft 53 rotates along the protrusion 51, which further causes the cam 52 to contact the limiting block 54, thereby moving the limiting block 54 towards the first slide groove 14. Since the centrifuge tubes 01 are also at different heights, the sliding seat 21 slides along the height direction of the machine body 1, thereby causing the first connecting section 221 and the second connecting section 222 to slide, which in turn causes the clamping plate 31 to slide along the height direction of the machine body 1.

[0062] Reference Figure 7In some tissue pulverization experiments, the pulverizer is equipped with a corresponding adjustable worktable. The adjustable worktable generally consists of a base and a fixing rod. The base is used to place the centrifuge tube 01, and the fixing rod is used to fix the pulverizer. The base also has a device for clamping the centrifuge tube 01. In this case, the pulverizer needs to be able to be fixed on the worktable. For this purpose, the outer wall of the sliding seat 21 is provided with a second sliding groove 211 along its circumference. The end of the first connecting section 221 near the sliding seat 21 is connected to the second slider 2211. The second slider 2211 is slidably connected to the sliding seat 21 along the groove wall of the second sliding groove 211. In this embodiment, the second sliding groove 211 is a T-shaped groove, the second slider 2211 is a T-shaped block, and the end of the first connecting section 221 away from the second connecting section 222 is fixedly connected to the second slider 2211.

[0063] Reference Figure 8 To secure the clamping component to the fixed rod of the worktable, a fixing member 2212 is provided at the connection between the first connecting section 221 and the second connecting section 222. One end of the fixing member 2212 is fixedly connected to the first connecting section 221. Two mounting seats 2221 are fixedly connected to the end of the second connecting section 222 near the first connecting section 221. The two mounting seats 2221 are arranged in parallel and are located at both ends of the second connecting section 222. The fixing member 2212 is located between the two mounting seats 2221. A second rotating shaft 2222 is provided between the two mounting seats 2221. The second rotating shaft 2222 is arranged parallel to the second direction and passes through the mounting seats 2221 and the fixing member 2212. The second rotating shaft 2222 is rotatably connected to the fixing member 2212. The second rotating shaft 2222 is parallel to the second direction along the rotation axis of the fixing member 2212. The second connecting section 222 can rotate along the first connecting section 221 through the second rotating shaft 2222.

[0064] Reference Figure 8 When centrifuge tube 01 needs to be clamped, the second connecting section 222 rotates along the fixed section to the side closer to the stirring component 11. At this time, the second connecting section 222 and the first connecting section 221 are locked together, so as to clamp the centrifuge tube 01 through the clamping plate 31. When the crusher needs to be set up on the workbench, the personnel can rotate the second connecting section 222 along the fixed section 2212 to the side away from the stirring component 11. At this time, the second connecting section 222 and the first connecting section 221 are locked together, so as to fix the fixed rod of the workbench through the clamping plate 31, and further fix the machine body 1. The first connecting section 221 is slidably connected to the sliding seat 21 along the circumference of the sliding seat 21 through the second sliding section, which further drives the second connecting section 222 and the clamping plate 31 to slide along the circumference of the sliding seat 21, so that the personnel can adjust the position of the clamping plate 31 according to the fixed position.

[0065] The implementation principle of a handheld tissue pulverizer according to an embodiment of this application is as follows: The operator holds the handle 513 and slides the sliding seat 21 along the height direction of the machine body 1. The clamping plate 31 is further slid to the required position through the first connecting section 221 and the second connecting section 222. The operator rotates the handle 513, which drives the cam 52 to contact the limiting member, and further causes the limiting member to abut against the first sliding groove 14 to fix the sliding seat 21 on the machine body 1. The screw 33 is rotated according to the outer diameter of the centrifuge tube 01 to drive the two clamping plates 31 to move closer or further away from each other along the length direction of the screw 33, so that the centrifuge tube 01 is clamped and fixed by the two clamping plates 31. The button 12 is pressed to drive the stirring member 11 to rotate, so that the stirring member 11 can pulverize the tissue in the centrifuge tube 01.

[0066] When it is necessary to fix the crusher on the worktable, rotate the second connecting section 222 along the fixing member 2212 to the side away from the fixing member 2212, and fix the clamping plate 31 to the worktable by rotating the screw 33.

[0067] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A handheld tissue grinder, characterized in that: Includes the body (1) and the clamping assembly (3); One end of the machine body (1) is rotatably connected to a stirring component (11), and the stirring component (11) is parallel to the height direction of the machine body (1) along the rotation axis of the machine body (1). The clamping assembly (3) includes multiple clamping plates (31). The clamping plates (31) are located at the end of the stirring member (11) away from the machine body (1). Two adjacent clamping plates (31) are spliced ​​together to form a clamping area (311). The clamping area (311) is in a through state in the height direction of the machine body (1). The projection of the stirring member (11) along the height direction of the machine body (1) is located in the clamping area (311). The clamping plates (31) are slidably connected to the machine body (1) in a first direction. The first direction is perpendicular to the height direction of the machine body (1) to adjust the width of the clamping area (311) in the first direction. It also includes a sliding assembly (2), which includes a sliding seat (21) and a connector (22). The sliding seat (21) is sleeved on the body (1) and is slidably connected to the body (1) along the height direction of the body (1). The sliding seat (21) is connected to the clamping plate (31) through the connector (22). One end of the connector (22) is connected to the sliding seat (21), and the other end is directly or indirectly connected to the clamping plate (31). The connector (22) includes a first connecting segment (221) and a second connecting segment (222); The first connecting segment (221) is parallel to the height direction of the body (1), and the first connecting segment (221) is directly or indirectly connected to the sliding seat (21); The outer peripheral wall of the sliding seat (21) is provided with a second sliding groove (211) along its circumference. The first connecting section (221) is fixedly connected to the second slider (2211) on the side near the sliding seat (21). The second slider (2211) is slidably connected to the sliding seat (21) along the groove wall of the second sliding groove (211). The first connecting section (221) and the second slider (2211) are fixedly connected.

2. The handheld tissue shredder according to claim 1, characterized in that: An arc-shaped groove (312) is provided on the side of the two adjacent clamping plates (31) that are close to each other, and the arc-shaped groove (312) passes through the clamping plate (31) along the height direction of the body (1).

3. A handheld tissue grinder according to claim 1, characterized in that: The stirring component (11) is fixedly connected to a stirring head (13) at one end away from the machine body (1), and the outer diameter of the stirring head (13) gradually decreases towards the side away from the machine body (1).

4. A handheld tissue grinder according to claim 1, characterized in that: The clamping assembly (3) further includes a screw (33) and a first telescopic rod (32); The screw (33) is parallel to the first direction, the screw (33) passes through two adjacent clamping plates (31), the screw (33) is parallel to the first direction along the rotation axis of the clamping plate (31), the clamping plate (31) is slidably connected to the screw (33) along the rod length direction of the screw (33), and the screws (33) connected on the two adjacent clamping plates (31) have opposite thread directions; The first telescopic rod (32) is parallel to the screw (33). The first telescopic rod (32) is fixedly connected between the connector (22) and the clamping plate (31). The movable section and the fixed section of the first telescopic rod (32) are slidably connected at their closest ends.

5. A handheld tissue grinder according to claim 4, characterized in that: It also includes a guide rod (4), one end of which passes through the clamping plate (31), and the clamping plate (31) is slidably connected to the guide rod (4) along the length direction of the guide rod (4).

6. A handheld tissue grinder according to claim 4, characterized in that: The clamping assembly (3) further includes a first elastic element (34), which is sleeved on the first telescopic rod (32). One end of the first elastic element (34) is fixedly connected to the end of the connector (22) away from the sliding seat (21), and the other end is fixedly connected to the clamping plate (31). The extension and retraction direction of the first elastic element (34) is parallel to the first direction.

7. A handheld tissue grinder according to claim 6, characterized in that: The second connecting segment (222) is perpendicular to the first connecting segment (221). One end of the second connecting segment (222) is rotatably connected to the end of the first connecting segment (221) away from the sliding seat (21), and the other end is fixedly connected to the first telescopic rod (32). The second connecting segment (222) is parallel to the second direction along the rotation axis of the first connecting segment (221), and the second direction is perpendicular to the first direction.

8. A handheld tissue grinder according to claim 1, characterized in that: It also includes a limiting component (5), which includes a protrusion (51), a first rotating shaft (53), a cam (52), a second elastic element (56), and a limiting block (54). The outer wall of the sliding seat (21) is provided with a first sliding groove (14) along the height direction of the body (1). The protrusion (51) is fixedly connected to the outer wall of the sliding seat (21), and a through groove (511) is provided through the side wall of the protrusion (51), which is connected to the first sliding groove (14). The first rotating shaft (53) is parallel to the height direction of the body (1). The first rotating shaft (53) is located in the through groove (511) of the protrusion (51). The first rotating shaft (53) is rotatably connected to the groove wall of the through groove (511). The rotation axis of the first rotating shaft (53) along the groove wall of the through groove (511) is perpendicular to the height direction of the body (1). The cam (52) is fixedly sleeved on the first rotating shaft (53). At the connection between the protrusion (51) and the sliding seat (21), and near the first slide groove (14), a through hole (512) is provided along the height direction of the body (1). One end of the second elastic member (56) is fixedly connected to the wall of the through hole (512), and the other end is fixedly connected to the limiting block (54). The cam (52) contacts the limiting block (54). Under recoverable deformation, the second elastic member (56) has a force that drives the limiting block (54) to move away from the first slide groove (14). When the protruding part of the cam (52) contacts the limiting block (54), the limiting block (54) abuts against the groove wall of the first slide groove (14).

Images