CN220919289U - Consumable hold-down device and consumable hold-down assembly - Google Patents

Abstract

The application provides a consumable pressing device and a consumable pressing assembly, which are used for pressing consumable materials, wherein the consumable materials comprise a body and a convex edge protruding out of the outer side wall of the body, and the consumable pressing device comprises a positioning frame and a pressing piece. The locating frame comprises a first side plate, a second side plate, a third side plate and a fourth side plate, wherein the first side plate and the second side plate are oppositely arranged along a first direction, the first side plate, the third side plate, the second side plate and the fourth side plate are connected end to enclose to form an accommodating space, and the accommodating space is used for accommodating consumables. The compressing element is arranged on the first side plate, the first side plate is provided with a first surface and a second surface which are oppositely arranged in the first direction, the first surface faces the accommodating space, a through groove which penetrates through the first surface and the second surface is formed in the first side plate, the compressing element is movably arranged in the through groove, the compressing element comprises a compressing end, the compressing end is used for protruding the first surface when the consumable is accommodated in the accommodating space, and the top surface of the protruding edge is compressed in the second direction perpendicular to the first direction.

Description

Consumable hold-down device and consumable hold-down assembly

Technical Field

The application relates to the technical field of clamps, in particular to a consumable pressing device and a consumable pressing assembly.

Background

In medical testing, batch testing of multiple samples is often required by means of microwell plates. In the detection or diagnosis process, the microplate needs to be clamped during the process of sucking up the sample of the microplate. In the related art, the clamping structure includes a motor and a clamping plate assembly, and the motor drives the clamping plate assembly to move to clamp the microplate. However, this requires space for the motor and clamping plate assembly to be specially set aside in the vicinity of the microplate working site, thus increasing the space occupied by the clamping structure, and the clamping structure employed is often complex.

Disclosure of utility model

In view of the above, the present application provides a consumable pressing device and a consumable pressing assembly for solving the above problems.

The application provides a consumable pressing device which is used for pressing consumable, wherein the consumable comprises a body and a convex edge protruding out of the outer side wall of the body, and the consumable pressing device comprises a positioning frame and a pressing piece. The locating frame comprises a first side plate, a second side plate, a third side plate and a fourth side plate, wherein the first side plate and the second side plate are oppositely arranged along a first direction, the third side plate and the fourth side plate are both connected between the first side plate and the second side plate, the first side plate, the third side plate, the second side plate and the fourth side plate are connected end to form an accommodating space, and the accommodating space is used for accommodating consumable materials. The compressing element is arranged on the first side plate, the first side plate is provided with a first surface and a second surface which are oppositely arranged in the first direction, the first surface faces the accommodating space, a through groove which penetrates through the first surface and the second surface is formed in the first side plate, the compressing element is movably arranged in the through groove, the compressing element comprises a compressing end, the compressing end is used for protruding out of the first surface when the consumable is accommodated in the accommodating space, and the top surface of the protruding edge is compressed in the second direction perpendicular to the first direction.

In some embodiments, the pressing piece includes a pressing block and a spring piece, the pressing block includes the pressing end, the pressing block is movably accommodated in the through groove, one end of the spring piece is fixed on the first side plate, and the other end of the spring piece is propped against the pressing block and is used for applying a propping force along the first direction to the pressing block, so that the pressing end protrudes out of the first surface.

In some embodiments, the compression block includes a first inclined surface facing the accommodation space, the first inclined surface including a first end and a second end disposed opposite to each other as viewed from the second direction, the first end being the compression end, and a distance from the first end to a center of the accommodation space being smaller than a distance from the second end to the center of the accommodation space.

In some embodiments, the pressing piece further includes a stop block disposed on the pressing block, the first side plate is further provided with a through hole, the through groove is communicated with the through hole, the stop block extends out of the through hole in the second direction, the stop block has a second inclined plane, and the second inclined plane is connected with the first inclined plane and has the same inclination angle.

In some embodiments, the first side plate is provided with a limiting plate protruding from an inner wall of the through groove, the limiting plate is closer to the first surface than the second surface, the compression block comprises a first block body and a second block body, the second block body is protruding from a side wall of the first block body, and the second block body is propped against the limiting plate.

In some embodiments, the second surface is concavely formed with the mounting groove, the shell fragment includes connecting portion, kink and the portion of supporting that connects gradually, connecting portion are fixed in the mounting groove, the portion of supporting is along the second direction extends and elasticity support in the compact heap.

In some embodiments, the compression member comprises a ball plunger, an inner wall of the through groove has an internal thread, and an outer surface of the ball plunger has an external thread that mates with the internal thread.

In some embodiments, a plurality of through grooves are formed in the first side plate at intervals, and the pressing piece comprises a plurality of ball plungers corresponding to the through grooves respectively.

In some embodiments, the compression member is disposed on both the first side plate and the second side plate.

The application also provides a consumable pressing assembly, which comprises a consumable and a consumable pressing device.

According to the consumable pressing device, the consumable pressing device comprises the positioning frame and the pressing piece, when the consumable is accommodated in the accommodating space, the pressing end of the pressing piece protrudes out of the first surface and abuts against the top surface of the protruding edge, so that the protruding edge is pressed in the second direction, and therefore the consumable is pressed. The consumable pressing device adopted by the technical scheme is simple in structure, easy to operate and free of motor driving, and therefore occupied space of the consumable pressing device can be reduced.

Drawings

Fig. 1 is a schematic structural diagram of a consumable pressing assembly according to an embodiment of the present application.

Fig. 2 is an exploded view of a consumable pressing device and consumable in the consumable pressing assembly of fig. 1.

FIG. 3 is a schematic cross-sectional view of the consumable pressing assembly of FIG. 1 taken along line III-III.

Fig. 4 is an exploded view of a consumable pressing device of the consumable pressing assembly of fig. 1.

Fig. 5 is an exploded view of the consumable part pressing device of fig. 4 from another perspective.

FIG. 6 is a schematic cross-sectional view of the consumable pressing assembly of FIG. 1 taken along line VI-VI.

Fig. 7 is a schematic structural diagram of a consumable pressing device according to a second embodiment of the present application.

Description of the main reference signs

Consumable hold-down device 100, 100

Positioning frame 10

First side plate 11

First surface 111

Second surface 112

Through groove 113

Through hole 114

Mounting groove 115

Second side plate 12

Third side plate 13

Fourth side plate 14

Accommodation space 15

Limiting plate 16

Compression member 20

Compression block 21

First block 211

Second block 212

First inclined surface 213

First end 2131

Second end 2132

Compression end 214

Stop 22

Second inclined plane 221

Spring piece 23

Connection portion 231

First portion 2311

Second portion 2312

Bending part 232

Holding portion 233

Consumable 200

Body 210

Convex edge 220

Consumable hold-down assembly 1000

First direction X

Second direction Y

Third direction Z

The application will be further described in connection with the following detailed description of the application with reference to the above-mentioned figures 1-7.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

The present application will be described in detail below with reference to the accompanying drawings and embodiments, in order to further explain the technical means and effects of the present application to achieve the intended purpose.

Example 1

Referring to fig. 1 and 2, the present application provides a consumable pressing assembly 1000, where the consumable pressing assembly 1000 includes a consumable pressing device 100 and a consumable 200 for pressing and fixing the consumable 200. In some embodiments, consumable 200 may be a microplate, but the application is not limited thereto.

The consumable pressing device 100 includes a positioning frame 10 and a pressing member 20. The positioning frame 10 is used for pre-positioning the consumable 200. The pressing member 20 is used for pressing the consumable 200 in the positioning frame 10. The pressing member 20 is also used for enabling the consumable 200 to be detached from the positioning frame 10 after the consumable 200 is subjected to the operation. If the consumable 200 is a microplate, the consumable 200 includes a body 210 and a flange 220 protruding from an outer sidewall of the body 210, and the flange 220 surrounds the body 210 and is substantially annular. The pressing piece 20 is fixed in the positioning frame 10 by pressing the convex edge 220 so that the sample in the consumable 200 can be sampled by the pipette, and after the sampling is completed, the pressing piece 20 is loosened so that the consumable 200 can be taken out from the positioning frame 10. During application, the consumable part pressing device 100 is located on a workbench (not shown), and the consumable part 200 is pressed on the workbench through the pressing member 20.

Referring to fig. 1 and 2, the positioning frame 10 includes a first side plate 11, a second side plate 12, a third side plate 13 and a fourth side plate 14, the first side plate 11 and the second side plate 12 are disposed opposite to each other along a first direction X, and the third side plate 13 and the fourth side plate 14 are connected between the first side plate 11 and the second side plate 12. The first side plate 11, the third side plate 13, the second side plate 12 and the fourth side plate 14 are connected end to form an accommodating space 15. The containing space 15 is used for containing the consumable 200 therein. The third side plate 13 and the fourth side plate 14 are disposed at intervals along a third direction Z perpendicular to the first direction X. The accommodation space 15 in the positioning frame 10 is adapted to the shape of the consumable 200. In this embodiment, the consumable 200 has a generally square outline.

Referring to fig. 3 and 4 together, the pressing member 20 is disposed on the first side plate 11, and the first side plate 11 has a first surface 111 and a second surface 112 disposed opposite to each other in the first direction X, and the first surface 111 faces the accommodating space 15. The first side plate 11 is provided with a through groove 113 penetrating the first surface 111 and the second surface 112. The pressing member 20 is movably disposed in the through groove 113. The pressing member 20 includes a pressing end 214, and the pressing end 214 is configured to protrude from the first surface 111 when the consumable 200 is accommodated in the accommodating space 15, and press the top surface of the flange 220 in a second direction Y perpendicular to the first direction X and the third direction Z, thereby completing positioning and pressing of the consumable 200. The consumable pressing device 100 used in the embodiment has a simple structure, is easy to operate and does not need motor driving, so that the occupied space of the consumable pressing device 100 can be reduced.

In some embodiments, the pressing member 20 is located at a middle portion of the first side plate 11 in the third direction Z, so as to facilitate the pressing member 20 to press the entire consumable 200.

In some embodiments, in order to more accurately position and compress the consumable 200, the compressing members 20 are disposed on the first side plate 11 and the second side plate 12, and the two compressing members 20 are symmetrically disposed in the first direction X, and after the consumable 200 is placed in the accommodating space 15, at least two compressing members 20 are compressed on the flange 220.

Referring to fig. 3 and 4, in some embodiments, the compression member 20 includes a compression block 21 and a spring plate 23. The pressing end 214 is located on the pressing block 21, the pressing block 21 is movably accommodated in the through groove 113, and the pressing end 214 can protrude out of the first surface 111. One end of the elastic piece 23 is fixed on the first side plate 11, and the other end abuts against the surface of the pressing block 21 facing away from the accommodating space 15, so as to be used for applying an abutting force along the first direction X to the pressing block 21. The pressing end 214 of the pressing block 21 may protrude from the first surface 111 and press the flange 220 under the pushing force, and the pressing end 214 may further press the body 210 in the first direction X, so that the consumable 200 is pressed into the positioning frame 10 by the two pressing members 20.

In this embodiment, when the consumable 200 is not contained in the containing space 15, the elastic piece 23 abuts against the pressing block 21 so that the pressing end 214 protrudes out of the first surface 111. When the consumable 200 needs to be positioned, the pushing forces can be applied to the two pressing blocks 21 through manual or mechanical operation, so that the two pressing blocks 21 are far away from each other in the first direction X, the length of the pressing end 214 of the pressing block 21 protruding from the corresponding first surface 111 is gradually reduced, and in this process, the two elastic sheets 23 are elastically deformed. At this time, the consumable 200 is placed in the accommodating space 15 from the top down along the second direction Y. Then, the pushing force applied by the manpower or the mechanical arm to the two pressing blocks 21 is released, under the action of the resilience force of the elastic pieces 23, the two elastic pieces 23 respectively support against the corresponding pressing blocks 21 and respectively apply opposite supporting forces along the first direction X to the pressing blocks 21, the pressing ends 214 protrude out of the first surface 111 under the action of the supporting forces, the two pressing blocks 21 press the convex edges 220 in the second direction Y, and the body 210 is clamped and fixed in the positioning frame 10 in the first direction X.

In this embodiment, the compressing member 20 includes the compressing block 21 and the elastic sheet 23, and fewer parts adopted by the compressing member 20 are matched with the positioning frame 10 to compress the consumable 200, which reduces the processing cost, is simple in assembly and debugging, reduces the development cost, and is particularly suitable for a workbench with a small space design.

Referring to fig. 4 and fig. 5 together, in some embodiments, the surfaces of the pressing blocks 21 facing the accommodating space 15 are first inclined surfaces 213, and the surfaces of both pressing blocks 21 are provided with the first inclined surfaces 213. The consumable 200 is assembled in the positioning frame 10 from top to bottom along the second direction Y. Viewed from the second direction Y, the first inclined surface 213 includes a first end 2131 and a second end 2132 disposed opposite to each other, and the pressing end 214 is the first end 2131. The distance from the first end 2131 to the center of the receiving space 15 is less than the distance from the second end 2132 to the center of the receiving space 15. I.e. along the first direction X, the spacing between the first ends 2131 of the two first bevels 213 is smaller than the spacing between the second ends 2132 of the two first bevels 213. So configured, the two first inclined surfaces 213 serve as guiding surfaces, so that the consumable 200 can slide down into the accommodating space 15 along the second direction Y or the consumable 200 can be taken out from the positioning frame 10.

Referring to fig. 3, 4 and 5, in some embodiments, the compression member 20 further includes a stop 22 coupled to the compression block 21. The first side plate 11 is also provided with a through hole 114, and the through groove 113 is communicated with the through hole 114. The stopper 22 protrudes out of the through hole 114 in the second direction Y. The stopper 22 has a second inclined surface 221, and the second inclined surface 221 is connected to the first inclined surface 213 at the same inclination angle. The stopper 22 is disposed on the pressing block 21 and extends out of the top surface of the first side plate 11, and before the consumable 200 slides down into the accommodating space 15 along the second direction Y, two sides of the consumable 200 contact the corresponding two second inclined planes 221, slide down to the first inclined plane 213 along the two second inclined planes 221, and are accommodated in the accommodating space 15. The two second inclined planes 221 serve as guiding surfaces, which is more beneficial to placing the consumable 200.

Referring to fig. 5 and 6, in some embodiments, the first side plate 11 is provided with a limiting plate 16 protruding at an inner wall of the through slot 113, and the limiting plate 16 is closer to the first surface 111 than the second surface 112. The pressing block 21 includes a first block 211 and a second block 212, and the second block 212 is protruded from a sidewall of the first block 211. The first inclined surface 213 is located on the first block 211. When the compressing block 21 is accommodated in the through groove 113, the second block 212 abuts against the limiting plate 16. The second block 212 is convexly arranged on the first block 211 and is matched with the limiting plate 16, so that when the consumable 200 is not placed in the accommodating space 15 by the compression block 21, the position of the compression block 21 in the through groove 113 is restrained, the compression block 21 is prevented from sliding out of the through groove 113 under the pushing force of the elastic sheet 23, and the consumable 200 is not placed in the positioning frame 10. In some embodiments, the surface of the second block 212 facing the receiving space 15 does not protrude from the first surface 111, i.e. the surface of the second block 212 facing the receiving space 15 is closer to the second surface 112 than the first slope 213.

In some embodiments, after the consumable 200 is placed in the positioning frame 10, the surface of the first block 211 facing away from the first inclined surface 213 is flush with the second surface 112, and compared to the structure that the first block 211 protrudes from the second surface 112, in this embodiment, the first block 211 does not protrude from the second surface 112, which not only reduces the space occupied by the pressing member 20, but also facilitates the elastic sheet 23 to stably abut against the first block 211.

In some embodiments, the surface of the limiting plate 16 facing the accommodating space 15 is flush with the first surface 111, and the accommodating space 15 is not occupied by the limiting plate 16, which is more beneficial to placing the consumable 200 in the positioning frame 10.

Referring to fig. 5 and 6, in some embodiments, in order to better maintain the stability of the compression block 21 in the through slot 113, so that the first inclined surface 213 of the first block 211 protruding from the first surface 111 uniformly abuts against the consumable 200, two second blocks 212 are protruding from two sidewalls of the first block 211, and the two second blocks 212 are symmetrically disposed in the length direction of the first side plate 11. Correspondingly, the first side plate 11 is provided with a limiting plate 16 at a position corresponding to the second block 212 on the inner wall of the through groove 113. In other embodiments, the second block 212 may also be annularly disposed around the outer sidewall of the first block 211, and the corresponding limiting plate 16 is also annular, and the second block 212 abuts against the limiting plate 16 to limit the length of the pressing block 21 protruding from the first surface 111.

In this embodiment, the stopper 22 is disposed in the middle of the pressing block 21 in the second direction Y, and the pressing block 21 has a substantially trapezoid-like contour, so that the pressing block 21 can be increased to abut against the contact surface of the consumable 200 to stably clamp the consumable 200. In this embodiment, the compression member 20 is generally inverted T-shaped in profile. In some embodiments, stop 22 and hold-down member 20 are integrally formed.

Referring to fig. 3 and 5, in some embodiments, the second surface 112 is concavely formed with mounting grooves 115. The elastic sheet 23 includes a connecting portion 231, a bending portion 232, and a supporting portion 233, where the connecting portion 231 is fixed in the mounting groove 115, the bending portion 232 is disposed at a connection portion between an inner wall of the mounting groove 115 and the second surface 112, and the supporting portion 233 extends along the second direction Y and elastically supports against the first block 211. The bending portion 232 is circular arc-shaped. When the pressing block 21 is pushed to apply a force to the holding portion 233 in the opposite direction of the first direction X, the holding portion 233 moves in a direction away from the first surface 111, and a resilient force is generated between the holding portion 233 and the bending portion 232, so that the holding portion 233 simultaneously applies a pressing force to the pressing block 21 in the first direction X to hold the consumable 200 when the consumable 200 is placed in the accommodating space 15. The mounting groove 115 is disposed near the through groove 113, so that the overall volume of the spring plate 23 can be reduced.

In some embodiments, the connection 231 may be fixed to a side wall or a bottom wall of the mounting groove 115. Referring to fig. 3 and 5, in the present embodiment, the connection portion 231 is fixed to the bottom wall of the mounting groove 115, so that the connection portion 231 is fixed in the mounting groove 115. The connection portion 231 includes a first portion 2311 connected to the bending portion 232 and a second portion 2312 connected to the first portion 2311. The second portion 2312 and the abutting portion 233 are located on both sides of the first portion 2311. The first portion 2311 is set to be circular arc, and the center of the arc of the first portion 2311 and the center of the arc of the bending portion 232 are located at different sides of the first portion 2311, so that when an external force or a force applied by a manipulator to the pressing block 21 in a direction opposite to the first direction X is applied, the supporting portion 233 extends away from the second surface 112, the bending portion 232 and the first portion 2311 can be driven to stretch, and a buffer is provided for the movement of the supporting portion 233. The second portion 2312 is provided with holes for bolts or screws to pass through to fix the second portion 2312 to the bottom of the mounting groove 115.

In some embodiments, the length of the abutting portion 233 in the second direction Y is greater than the length of the pressing block 21 in the second direction Y, that is, the abutting portion 233 abuts against the pressing block 21 and extends to the stop 22, so as to provide a more stable force to the entire pressing block 21. In some embodiments, to further improve the stability of the abutting portion 233 abutting against the pressing block 21, the abutting portion 233 abuts against the middle portion of the pressing block 21 in the third direction Z.

In the present application, the consumable part pressing device 100 includes a positioning frame 10 and a pressing member 20, and when the consumable part 200 is accommodated in the accommodating space 15, a pressing end 214 of the pressing member 20 protrudes from the first surface 111 and abuts against a top surface of the flange 220, so as to press the flange 220 in the second direction Y, thereby pressing the consumable part 200. The consumable pressing device 100 adopted by the technical scheme is simple in structure, easy to operate and free of motor driving, and therefore occupied space of the consumable pressing device 100 can be reduced.

Example two

Referring to fig. 7, the second embodiment is different from the first embodiment in the structure of the pressing member 20 in the consumable pressing device 100'.

In this embodiment, the pressing member 20 includes a ball plunger, the inner wall of the through groove 113 has an internal thread, and the outer surface of the ball plunger has an external thread that mates with the internal thread. The ball plunger is fixed in the through groove 113 by the matching of the internal thread and the external thread, protrudes out of the first surface 111 and abuts against the top surface of the convex edge 220. The ball plunger comprises a hollow body (not shown), a spring (not shown) arranged in the body and a ball (not shown) protruding out of the body, wherein the body is provided with an opening, and the spring pushes the ball (i.e. the pressing end) to protrude out of the body through the opening. When the ball is extruded by external force, the ball automatically compresses the spring to move towards the inside of the body. When the consumable 200 is accommodated in the accommodating space 15, the consumable 200 presses the ball, the spring applies an elastic force along the first direction X to the ball, the ball abuts against the consumable 200 and protrudes out of the first surface 111, and the consumable 200 is clamped between the ball and the second side plate 12 in the first direction X and is compressed in the second direction Y.

When it is desired to remove the consumable 200 from the positioning frame 10, the consumable 200 is lifted upwards, the flange 220 thereof pressing the sphere to retract it back towards the first surface 111, releasing the constraint on the flange 220 in the second direction Y.

In some embodiments, the first side plate 11 is provided with a plurality of through slots 113 at intervals, and the pressing member 20 includes a plurality of ball plungers corresponding to the plurality of through slots 113 respectively, so as to improve the stability of the consumable 200 pressed in the positioning frame 10.

In some embodiments, ball plungers are mounted on the first side plate 11 and the second side plate 12, and the convex edges 220 corresponding to the two sides of the consumable 200 are pressed by the ball plungers. In order to improve the stability of the pressing consumable 200, the pressing member 20 on the first side plate 11 and the pressing member 20 on the second side plate 12 are symmetrically disposed in the first direction X.

Finally, it should be noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present application and not for limiting the same, and although the present application has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made to the technical solution of the present application without departing from the spirit and scope of the technical solution of the present application.

Claims (10)

1. A consumable closing device for compress tightly the consumable, the consumable includes body and protrusion the protruding edge of body lateral wall, its characterized in that, consumable closing device includes:

The positioning frame comprises a first side plate, a second side plate, a third side plate and a fourth side plate, wherein the first side plate and the second side plate are oppositely arranged along a first direction, the third side plate and the fourth side plate are connected between the first side plate and the second side plate, the first side plate, the third side plate, the second side plate and the fourth side plate are connected end to form an accommodating space, and the accommodating space is used for accommodating the consumable;

The compressing element is arranged on the first side plate, the first side plate is provided with a first surface and a second surface which are oppositely arranged in the first direction, the first surface faces the accommodating space, a through groove which penetrates through the first surface and the second surface is formed in the first side plate, the compressing element is movably arranged in the through groove, the compressing element comprises a compressing end, the compressing end is used for protruding out of the first surface when the consumable is accommodated in the accommodating space, and the top surface of the protruding edge is compressed in the second direction perpendicular to the first direction.

2. The consumable pressing device according to claim 1, wherein the pressing piece comprises a pressing block and a spring plate, the pressing block comprises the pressing end, the pressing block is movably accommodated in the through groove, one end of the spring plate is fixed on the first side plate, and the other end of the spring plate is abutted against the pressing block and used for applying an abutting force to the pressing block along the first direction so that the pressing end protrudes out of the first surface.

3. The consumable pressing device according to claim 2, wherein the pressing block comprises a first inclined surface facing the accommodating space, the first inclined surface comprising a first end and a second end which are oppositely arranged, as seen in the second direction, the first end being the pressing end, and a distance from the first end to the center of the accommodating space being smaller than a distance from the second end to the center of the accommodating space.

4. The consumable pressing device according to claim 3, wherein the pressing piece further comprises a stop block arranged on the pressing block, a through hole is further formed in the first side plate, the through groove is communicated with the through hole, the stop block extends out of the through hole in the second direction, the stop block is provided with a second inclined surface, and the second inclined surface is connected with the first inclined surface and has the same inclination angle.

5. The consumable pressing device according to claim 2, wherein the first side plate is provided with a limiting plate protruding from the inner wall of the through groove, the limiting plate is closer to the first surface than the second surface, the pressing block comprises a first block body and a second block body, the second block body is protruding from the side wall of the first block body, and the second block body is propped against the limiting plate.

6. The consumable pressing device according to claim 2, wherein the second surface is concavely formed with a mounting groove, the elastic sheet comprises a connecting portion, a bending portion and a supporting portion which are sequentially connected, the connecting portion is fixed in the mounting groove, and the supporting portion extends along the second direction and elastically supports against the pressing block.

7. The consumable pressing device according to claim 1, wherein the pressing member comprises a ball plunger, an inner wall of the through groove is provided with internal threads, and an outer surface of the ball plunger is provided with external threads matched with the internal threads.

8. The consumable pressing device according to claim 7, wherein a plurality of through grooves are formed in the first side plate at intervals, and the pressing piece comprises a plurality of ball plungers corresponding to the through grooves respectively.

9. The consumable pressing device according to any one of claims 1 to 8, wherein the pressing member is provided on each of the first side plate and the second side plate.

10. A consumable pressing assembly comprising a consumable and a consumable pressing device according to any one of claims 1 to 9.