Limiting structure, transmission device and cover glass machine

Abstract

A limiting structure (200) is used for a transmission device (100), and comprises: a base configured to be fixed to a substrate (110) of the transmission device (100); and the pressing piece is connected to the base and is used for applying an acting force to an object which abuts against the pressing piece.

Description

Technical Field

[0001] The utility model relates to the field of microscopy technology, and particularly relates to a limiting structure, a transmission device and a cover glass slicer Background Art

[0002] After a sample is sliced by a slicer, a glass slide carrying the sample slice is transported to a staining machine through a bracket to stain the sample slice. After the sample slice is stained, the bracket loaded with the glass slide is transported from the staining machine to a cover glass slicer to apply a cover glass to the glass slide, thereby sealing the sample slice Summary of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems in the related art to some extent. For this purpose, an embodiment of the utility model provides a limiting structure, a transmission device and a cover glass slicer

[0004] The limiting structure according to an embodiment of the utility model is for a transmission device and includes:

[0005] A base configured to be fixed to a substrate of the transmission device; and

[0006] A pressing member connected to the base and configured to apply a force to an object against which it abuts

[0007] With the limiting structure according to an embodiment of the utility model, the pressing member can press the ear part of the bracket transmitted by the transmission device, so that the bracket remains stable during transmission without tilting to rub or collide with other components, thereby preventing the glass slide loaded in the bracket from being damaged

[0008] In some embodiments, the base includes a support plate; and

[0009] The pressing member includes:

[0010] A cover plate disposed on the support plate;

[0011] A pressing plate connected to the cover plate and movable relative to the cover plate; and

[0012] An elastic member disposed between the cover plate and the pressing plate and configured to apply a force to the pressing plate in a direction away from the cover plate when the pressing plate moves toward the cover plate

[0013] In some embodiments, when the pressing plate is in an initial position, the elastic member is in a pre-compressed state to apply a pre-force to the pressing plate in a direction away from the cover plate, where the initial position refers to the position where the pressing plate does not move toward the cover plate under the action of an external force

[0014] In some embodiments, the support plate has a first support plate portion and a second support plate portion that is connected to and angled with the first support plate portion, and the second support plate portion has a first notch.

[0015] The cover plate includes a first cover plate portion and a second cover plate portion that is connected to and angled with the first cover plate portion. The first cover plate portion includes a first protrusion that is fixed in the first notch. The first cover plate portion is angled with the first support plate portion and the second cover plate portion is spaced apart from the second support plate portion to define a receiving space. The pressing plate is disposed in the receiving space and an end of the pressing plate facing away from the cover plate protrudes from the receiving space.

[0016] In some embodiments, the first protrusion has a first through hole, and the bottom of the first notch has a first blind hole, and the first through hole is aligned with the first blind hole.

[0017] The limiting structure further includes a first fastener that passes through the first through hole and is fitted in the first blind hole to fix the first protrusion in the first notch.

[0018] In some embodiments, a side of the pressing plate facing the cover plate includes a second notch. The cover plate includes a second protrusion disposed on a side of the first cover plate portion facing the pressing plate. The second protrusion is offset from the first protrusion in a direction from the second cover plate portion to the second support plate portion. The second protrusion extends toward the pressing plate and is movably fitted in the second notch.

[0019] In some embodiments, the pressing plate further includes a first stop disposed at an opening of the second notch. The first stop protrudes from an edge of the second notch to cover a part of the opening of the second notch.

[0020] An end of the second protrusion facing the pressing plate includes a second stop that protrudes in a direction opposite to the protruding direction of the first stop and is configured to interact with the first stop to prevent the second protrusion from disengaging from the second notch in a direction from the pressing plate to the cover plate.

[0021] In some embodiments, the cover plate has a second through hole that penetrates the first cover plate portion and the second protrusion. The bottom of the second notch has a second blind hole that is offset from the first stop and is aligned with the second through hole. Two ends of the elastic member are respectively disposed in the second through hole and the second blind hole.

[0022] In some embodiments, the limiting structure further includes a second fastener located in the second through hole to fix the end of the elastic member in the second through hole.

[0023] In some embodiments, the pressing plate has a step on the side facing the second cover portion, and the second cover portion is configured to abut against the step when the pressing plate moves the maximum distance toward the cover.

[0024] In some embodiments, the second support plate portion includes two spaced-apart first notches and a first boss located between the two first notches.

[0025] The first cover portion includes two spaced-apart first protrusions and a first gap located between the two first protrusions.

[0026] The two first protrusions are respectively fixed in the two first notches, and the first boss is fitted in the first gap.

[0027] In some embodiments, the cover includes two spaced-apart second protrusions and a second gap located between the two second protrusions. The two second protrusions correspond to the two first protrusions one by one, and the second gap corresponds to the first gap.

[0028] The pressing plate includes two spaced-apart second notches and a second boss located between the two second notches.

[0029] The two second protrusions are respectively movably fitted in the two second notches, and the second boss is movably fitted in the second gap.

[0030] The second stoppers of the two second protrusions protrude in a direction away from each other, while the first stoppers at the two second notches protrude in a direction toward each other.

[0031] In some embodiments, the base includes a first portion and a second portion connected to and angled with the first portion.

[0032] The pressing member is connected to and angled with the second portion, and the pressing member and the first portion are respectively located on opposite sides of the second portion.

[0033] In some embodiments, the pressing member is configured as a block-shaped member, and the thickness of the pressing member is greater than the thickness of the second portion.

[0034] In some embodiments, the pressing member is configured as a plate-like member, the thickness of the pressing member is substantially equal to the thickness of the second part, the pressing member includes a first plate segment connected to the second part at an angle and a second plate segment connected to the first plate segment at an angle, and the second plate segment and the second part are spaced apart by the first plate segment.

[0035] A transmission device according to an embodiment of the present invention includes:

[0036] A substrate;

[0037] A limiting structure according to an embodiment of the present invention, the base of the limiting structure is fixed to the substrate;

[0038] A first guide rail disposed on the substrate;

[0039] A grasping member slidably connected to the first guide rail and configured to grasp a bracket to be conveyed at a first position and abut an ear portion of the bracket against the pressing member of the limiting structure at a second position; and

[0040] A first motor disposed on the substrate, connected to the grasping member, and configured to drive the grasping member to move along the first guide rail between the first position and the second position.

[0041] In some embodiments, the transmission device further includes:

[0042] A second guide rail disposed at an angle to the first guide rail, the substrate being slidably connected to the second guide rail; and

[0043] A second motor connected to the substrate and configured to drive the substrate to move along the second guide rail to convey the bracket along the second guide rail.

[0044] In some embodiments, the grasping member includes:

[0045] A first grasping portion disposed along the first guide rail; and

[0046] A second grasping portion disposed opposite to and connected to the first grasping portion to clamp the ear portion of the bracket together with the first grasping portion,

[0047] wherein opposite side surfaces of the first grasping portion and the second grasping portion respectively have inclined portions opposite to each other to form a recess for receiving the ear portion of the bracket.

[0048] In some embodiments, the second grasping portion includes:

[0049] a first gripping section, which is disposed opposite to and connected to the first gripping part; and

[0050] a second gripping section, which is connected to and angled with the first gripping section, and the second gripping section extends from the first gripping section in a direction away from the first guide rail so as to be offset from the first gripping part, and the thickness of the second gripping section gradually decreases in a direction away from the first guide rail, while the width of the second gripping section gradually increases in a direction away from the first guide rail,

[0051] wherein, the first gripping section has gripping protrusions on the surface opposite to the first gripping part, one end of the gripping protrusions facing the pressing member has a first edge and a second edge disposed opposite to each other, and one end of the second gripping section away from the first guide rail has a third edge, and the first edge to the third edge are respectively used for abutting against the ear part of the bracket to grip the bracket.

[0052] In some embodiments, one end of the gripping protrusions facing the pressing member has a chamfer adjacent to the first guide rail, the second edge is configured as the edge of the chamfer adjacent to the first guide rail, and the first edge is configured as the edge of the gripping protrusions facing the pressing member away from the first guide rail.

[0053] A cover glass machine according to an embodiment of the present invention includes:

[0054] a conveying device;

[0055] a cover glass applying member; and

[0056] A transmission device according to an embodiment of the present invention, and the transmission device is used to transmit the bracket from the conveying device to the cover glass applying member. Description of the Drawings

[0057] Figure 1 is a schematic diagram of a cover glass machine according to an embodiment of the present invention.

[0058] Figure 2 is a schematic diagram of a cover glass machine according to an embodiment of the present invention, wherein the housing of the cover glass machine is removed.

[0059] Figure 3 is a schematic diagram of a transmission device according to an embodiment of the present invention.

[0060] Figure 4 is another schematic diagram of a transmission device according to an embodiment of the present invention.

[0061] Figure 5 is a schematic diagram of a bracket and a gripping member according to an embodiment of the present invention.

[0062] Figure 6 Schematic diagram of the grasping member according to an embodiment of the present utility model.

[0063] Figure 7 Schematic diagram of the second grasping portion according to an embodiment of the present utility model.

[0064] Figure 8 Schematic diagram of the bracket and the transmission device according to an embodiment of the present utility model.

[0065] Figure 9 is Figure 8 The enlarged view of part A in

[0066] Figure 10 Schematic diagram of the bracket and the transmission device according to an embodiment of the present utility model, wherein it is assumed that no limiting structure is provided and the second edge is not worn.

[0067] Figure 11 is Figure 10 The enlarged view of part B in

[0068] Figure 12 Schematic diagram of the bracket and the transmission device according to an embodiment of the present utility model, wherein it is assumed that no limiting structure is provided and the second edge is worn.

[0069] Figure 13 is Figure 12 The enlarged view of part C in

[0070] Figure 14 Schematic diagram of the limiting structure according to an embodiment of the present utility model.

[0071] Figure 15 Exploded view of the limiting structure according to an embodiment of the present utility model.

[0072] Figure 16 Schematic diagram of the cover plate of the limiting structure according to an embodiment of the present utility model.

[0073] Figure 17 Another schematic diagram of the cover plate of the limiting structure according to an embodiment of the present utility model.

[0074] Figure 18 Schematic diagram of the support plate of the limiting structure according to an embodiment of the present utility model.

[0075] Figure 19 Schematic diagram of the pressing plate of the limiting structure according to an embodiment of the present utility model.

[0076] Figure 20 Schematic diagram of the transmission device according to another embodiment of the present utility model.

[0077] Figure 21 Schematic diagram of a transmission device according to another embodiment of the present utility model.

[0078] Figure 22 Schematic diagram of a transmission method according to an embodiment of the present utility model. Detailed implementation manners

[0079] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0080] Reference will be made below to the attached Figures 1 - 22 to describe a limiting structure 200, a transmission device 100, and a cover glass slicing machine 1000 according to an embodiment of the present utility model.

[0081] As Figures 1 - 21 shown, the limiting structure 200 according to an embodiment of the present utility model is used for the transmission device 100 and includes a base and a pressing member. The base is configured to be fixed to a substrate 110 of the transmission device 100. The pressing member is connected to the base and is configured to apply a force to an object (such as an ear 310 of a bracket 300, which will be described in detail below) that abuts against it.

[0082] With the limiting structure 200 according to an embodiment of the present utility model, the pressing member can press the ear 310 of the bracket 300 transmitted by the transmission device 100, so that the bracket 300 remains stable during transmission and does not tilt to rub or collide with other components (such as a carrier device 400 to be described below), thereby preventing the cover glass 500 loaded in the bracket 300 from being damaged.

[0083] In some embodiments, as Figures 2 - 4 shown in FIGS. 8-9 and 14-19, the base includes a support plate 210, and the pressing member includes a cover plate 220, a pressing plate 230, and an elastic member 240. The support plate 210 is fixed to the substrate 110. For example, the support plate 210 has mounting holes 2111 and is fixed to the substrate 110 by fasteners (such as screws) passing through the mounting holes 2111. The cover plate 220 is disposed on the support plate 210. In some embodiments, the cover plate 220 can be fixed to the support plate 210. For example, the cover plate 220 does not move relative to the support plate 210. The pressing plate 230 is connected to the cover plate 220 and is movable relative to the cover plate 220. For example, the pressing plate 230 is movably connected to the cover plate 220. The elastic member 240 is disposed between the cover plate 220 and the pressing plate 230 and is configured to apply a force to the pressing plate 230 in a direction away from the cover plate 220 when the pressing plate 230 moves toward the cover plate 220.

[0084] For example, when the ear portion 310 of the bracket 300 abuts against the pressing plate 230 causing the pressing plate 230 to move towards the cover plate 220, the elastic member 240 is compressed or further compressed, thereby pushing against the pressing plate 230 in the direction away from the cover plate 220. As a result, the pressing plate 230 and the gripping member 130 of the transmission device 100 can stably clamp the ear portion 310 of the bracket 300 therebetween, ensuring that the bracket 300 can be stably transported without tilting or vibrating. It can be understood that the elastic member 240 can be a spring or the like, as long as it can be compressed to provide the desired elastic force.

[0085] In some embodiments, when the ear portion 310 of the bracket 300 does not abut against the pressing plate 230, the elastic member 240 can be in a natural state. For example, the elastic member 240 has an original length. By selecting an elastic member 240 with an appropriate elastic coefficient, it can be ensured that when the ear portion 310 of the bracket 300 abuts against the pressing plate 230 causing the pressing plate 230 to move towards the cover plate 220, the elastic member 240 can exert a large enough force on the pressing plate 230 to stably clamp the ear portion 310 of the bracket 300 between the pressing plate 230 and the gripping member 130.

[0086] In other embodiments, when the pressing plate 230 is in the initial position, for example, when the ear portion 310 of the bracket 300 does not abut against the pressing plate 230, the elastic member 240 is in a pre-compressed state to exert a pre-acting force on the pressing plate 230 in the direction away from the cover plate 220, thereby further ensuring that the elastic member 240 can exert a large enough acting force on the pressing plate 230 to stably clamp the ear portion 310 of the bracket 300 between the pressing plate 230 and the gripping member 130. It can be understood that the initial position refers to the position where the pressing plate 230 is not subjected to an external force and moves towards the cover plate 220.

[0087] As Figures 14 - 15 As shown in FIGS. 11 and 17, the support plate 210 has a first support plate portion 211 and a second support plate portion 212 that is connected to and angled with the first support plate portion 211. For example, the second support plate portion 212 is perpendicular to the first support plate portion 211. The first support plate portion 211 is used to connect to the substrate 110 and accordingly has a mounting hole 2111. The second support plate portion 212 is connected to the cover plate 220 and has a first notch 2121.

[0088] Further, as Figures 16 - 17As shown, the cover plate 220 includes a first cover plate portion 221 and a second cover plate portion 222 connected to the first cover plate portion 221 and at an angle, for example, the second cover plate portion 222 is perpendicular to the first cover plate portion 221. The first cover plate portion 221 is connected to the second support plate portion 212 and includes a first protrusion 2211, and the first protrusion 2211 is fixed in the first notch 2121. For example, the first protrusion 2211 has a first through hole 22111, and the bottom of the first notch 2121 has a first blind hole 21211, the first through hole 22111 is aligned with the first blind hole 21211, and the limiting structure 200 also includes a first fastener 260, the first fastener 260 passes through the first through hole 22111 and fits in the first blind hole 21211 to fix the first protrusion 2211 in the first notch 2121. It is understandable that the first fastener 260 can be a screw or a bolt, etc., as long as it can pass through the first through hole 22111 and fit in the first blind hole 21211 to fix the first protrusion 2211 in the first notch 2121.

[0089] In some embodiments, the first through hole 22111 can be a countersunk hole so that the first fastener 260 can be fully fitted in the first through hole 22111 without protruding from the end of the first through hole 22111 facing away from the first blind hole 21211, thereby providing a smooth surface and avoiding interference between the first fastener 260 and other components.

[0090] It can be understood that at least a portion of each of the first through hole 22111 and the first blind hole 21211 has an internal thread so as to cooperate with the first fastener 260 such as a screw or a bolt.

[0091] like Figure 14 and 15 As shown, the first cover plate portion 221 is angled with the first support plate portion 211 and the second cover plate portion 222 is spaced apart from the second support plate portion 212 to define the accommodation space 250. For example, the first cover plate portion 221 is perpendicular to the first support plate portion 211, and the second cover plate portion 222 is parallel to and spaced apart from the second support plate portion 212 to enclose the accommodation space 250. The pressing plate 230 is disposed in the accommodation space 250 and one end of the pressing plate 230 facing away from the cover plate 220 protrudes from the accommodation space 250. Therefore, when the ear 310 of the bracket 300 abuts against the pressing plate 230, the pressing plate 230 can move toward the cover plate 220 within a certain distance range, thereby compressing or further compressing the elastic member 240, so that the elastic member 240 applies a sufficiently large force to the pressing plate 230 to prevent the pressing plate 230 from continuing to move toward the cover plate 220, thereby stably clamping the ear 310 of the bracket 300 between the pressing plate 230 and the clamping member 310.

[0092] Further, if Figure 15 ,17 As shown in FIGS. 19, one side of the pressing plate 230 facing the cover plate 220 (such as the upper side shown in the figure) includes a second notch 231, and the cover plate 220 includes a second protrusion 223 provided on one side of the first cover plate portion 221 facing the pressing plate 230 (such as Figure 15 the lower side shown in the figure). The second protrusion 223 and the first protrusion 2211 are offset in the direction from the second cover plate portion 222 to the second support plate portion 212 (such as Figure 15 the front-back direction shown in the figure), so as to prevent the second protrusion 223 and the second support plate portion 212 from interfering with each other. The second protrusion 223 extends towards the pressing plate 230 and is movably fitted in the second notch 231. For example, the second protrusion 223 is fitted in the second notch 231 and is movable in the second notch 231, such as Figure 15 the up-down direction shown in the figure.

[0093] In some embodiments, the second protrusion 223 may be connected to the second cover plate portion 222. For example, the second protrusion 223 is provided on and in contact with or even integral with one side of the second cover plate portion 222 facing the second support portion 212 (such as Figure 15 the front side in the figure), thereby increasing the structural strength of the second protrusion 223 and ensuring the stability of the fit between the second protrusion 223 and the second notch 231.

[0094] As Figure 19 shown, the pressing plate 230 further includes a first stopper 232 provided at the opening of the second notch 231. The first stopper 232 protrudes from the edge of the second notch 231 to cover a part of the opening of the second notch 231. Further, as Figure 17 shown, one end of the second protrusion 223 facing the pressing plate 230 (such as Figure 15 the lower end shown in the figure) includes a second stopper 2231. The second stopper 2231 protrudes in a direction opposite to the protruding direction of the first stopper 232 and is configured to interact with the first stopper 232 to prevent the second protrusion 223 from disengaging from the second notch 231 in the direction from the pressing plate 230 to the cover plate 220.

[0095] For example, when the ear portion 310 of the bracket 300 does not abut against the pressing plate 230, the second protrusion 223 is engaged in the second notch 231, and the first stopper 232 and the second stopper 2231 are in contact with and abut against each other to prevent the second protrusion 223 from disengaging from the second notch 231, thereby preventing the pressing plate 230 from detaching from the cover plate 220. When the ear portion 310 of the bracket 300 abuts against the pressing plate 230, the pressing plate 230 moves towards the cover plate 220, and the distance between the first stopper 232 and the second stopper 2231 increases until the pressing plate 230 stops moving under the action of the elastic member 240. At this time, the first stopper 232 and the second stopper 2231 should be spaced apart by a certain distance, for example Figure 9 the distance h described in

[0096] As Figure 16 and 17 shown, the cover plate 220 has a second through hole 224, and the second through hole 224 penetrates through the first cover plate portion 221 and the second protrusion 223. Further, as Figure 19 shown, the bottom of the second notch 231 has a second blind hole 2311, and the second blind hole 2311 is offset from the first stopper 232 (for example, in the left - right direction as shown in Figure 15 ) and is aligned with the second through hole 224 (for example, in the up - down direction as shown in Figure 15 ), and both ends of the elastic member 240 are respectively disposed in the second through hole 224 and the second blind hole 2311. For example, the elastic member 240 passes through the second through hole 224 and is engaged in the first blind hole 2311.

[0097] Further, as Figure 15 shown, the limiting structure 200 further includes a second fastener 270, and the second fastener 270 is located in the second through hole 224 to fix the end of the elastic member 240 in the second through hole 224 (for example, the upper end as shown in Figure 15 ), for example, the second fastener 270 fixes the upper end of the elastic member 240 in the second through hole 224. Additionally, fixing the end of the elastic member 240 in the second through hole 224 by the second fastener 270 also helps to keep the elastic member 240 in a pre - compressed state, as described above.

[0098] It can be understood that the second fastener 270 can be a screw or a bolt, etc., as long as it can be engaged in the second through hole 224 and fix the upper end of the elastic member 240, and at least a part of the second through hole 224 has internal threads to cooperate with the second fastener 270 such as a screw or a bolt.

[0099] In addition, as Figure 14 , 15 and 19 shown, the pressing plate 230 is on the side facing the second cover plate portion 222 (for example Figure 15The rear side shown in [description] has a step 233, and the second cover plate portion 222 is configured to abut against the step 233 when the pressing plate 230 moves towards the cover plate 220 by the maximum distance. In some embodiments, the step 233 extends along the entire length of the rear side of the pressing plate 230, for example, in the Figure 15 left - right direction shown.

[0100] In some embodiments, as Figures 14 - 18 shown, the second support plate portion 212 includes two spaced - apart first notches 2121 and a first boss 2122 located between the two first notches 2121. For example, the first boss 2122 separates the two first notches 2121, for example, along the Figure 15 left - right direction described above. The first cover plate portion 221 includes two spaced - apart first protrusions 2211 and a first gap 2212 located between the two first protrusions 2211. For example, the first gap 2212 separates the two first protrusions 2211, for example, along the Figure 15 left - right direction described above. The two first protrusions 2211 are respectively fixed in the two first notches 2121, and the first boss 2122 is fitted in the first gap 2212. In this case, there are also two first fasteners 260 to respectively fix the two first protrusions 2211 in the two first notches 2121.

[0101] Furthermore, as Figure 17 shown, the cover plate 220 includes two spaced - apart second protrusions 223 and a second gap 225 located between the two second protrusions 223. For example, the second gap 225 separates the two second protrusions 223, for example, along the Figure 15 left - right direction shown. The two second protrusions 223 correspond one - to - one with the two first protrusions 2211, and the second gap 225 corresponds to the first gap 2212. For example, the second gap 225 is in communication with the first gap 2212.

[0102] Furthermore, as Figure 19 shown, the pressing plate 230 includes two spaced - apart second notches 231 and a second boss 234 located between the two second notches 231. For example, the second boss 234 separates the two second notches 231, for example, along the Figure 15 left - right direction shown.

[0103] In this case, the two second protrusions 223 are respectively movably fitted in the two second notches 231, and the second boss 234 is movably fitted in the second gap 225, thereby further ensuring the movement stability of the pressing plate 230.

[0104] In addition, the second stoppers 2231 of the two second protrusions 223 protrude in directions away from each other, while the first stoppers 232 at the two second notches 231 protrude in directions towards each other. Thus, the second stoppers 2231 of the two second protrusions 223 can respectively come into contact with and abut against the first stoppers 232 at the two second notches 231.

[0105] In some other embodiments of the present utility model, as Figure 19 and 20 shown, the base includes a first part 201 and a second part 202 connected to the first part 201 and angled (e.g., perpendicular). The pressing member is connected to the second part 202 and angled (e.g., perpendicular), and the pressing member and the first part 201 are respectively located on opposite sides of the second part 202, such as Figure 19 and 20 shown in the upper and lower sides.

[0106] Furthermore, as Figure 19 shown, the pressing member is configured as a block-shaped member 203, and the thickness of the pressing member is greater than the thickness of the second part 202. Thus, the pressing member can stably clamp the ear portion 310 of the bracket 300 with the grasping member 130, and the second part 202 can provide a certain degree of flexibility. It can be understood that the thickness of the pressing member refers to the dimension of the pressing member in the Figure 19 left-right direction, while the thickness of the second part 202 refers to the dimension of the second part 202 in the Figure 19 up-down direction.

[0107] Furthermore, as Figure 20 shown, the pressing member is configured as a plate-shaped member, the thickness of the pressing member is substantially equal to the thickness of the second part 202, the pressing member includes a first plate segment 204 connected to the second part 202 and angled (e.g., perpendicular) and a second plate segment 205 connected to the first plate segment 204 and angled (e.g., perpendicular). The second plate segment 205 and the second part 202 are spaced apart by the first plate segment 204. For example, the second plate segment 205 and the second part 202 are parallel and respectively located on opposite sides of the first plate segment 204, such as Figure 20 shown in the upper and lower sides. Thus, the second plate segment 205 can stably clamp the ear portion 310 of the bracket 300 with the grasping member 130, and the second part 202 and the first plate segment 204 can provide a certain degree of flexibility.

[0108] As Figures 1 - 4 and shown in FIGS. 20 - 21, the transmission device according to an embodiment of the present utility model includes a transmission device 100 including a substrate 110, a limiting structure 200 according to the above embodiment of the present utility model, a first guide rail 120, a grasping member 130, and a first motor 140.

[0109] The base of the limiting structure 200 is fixed to the substrate 110. The first guide rail 120 is disposed on the substrate 110. The gripper 130 is slidably connected to the first guide rail 120 and is configured to grip the bracket 300 to be transferred at a first position and to abut the ear portion 310 of the bracket 300 against the pressing member of the limiting structure 200 at a second position.

[0110] For example, the first position is the lowest position where the gripper 130 slides along the first guide rail 120, and the second position is the highest position where the gripper 130 slides along the first guide rail 120. When the gripper 130 moves to the lowest position along the first guide rail 120, the gripper 130 grips the ear portion 310 of the bracket 300 to be transferred. When the gripper 130 moves to the highest position along the first guide rail 120, the gripper 130 abuts the ear portion 310 of the bracket 300 against the pressing member of the limiting structure 200. For example, the gripper 130 and the pressing member of the limiting structure 200 clamp the ear portion 310 of the bracket 300 therebetween to ensure that the bracket 300 can be smoothly transported without tilting or vibrating, thereby preventing the glass slide 500 loaded in the bracket 300 from being damaged.

[0111] Furthermore, the transfer device 100 further includes a first sensor 191 and a second sensor 192 mounted on the first guide rail 120. The first sensor 191 is disposed at the second position (e.g., the highest position) of the gripper 130 for detecting whether the gripper 130 reaches the highest position, and the second sensor 192 is disposed at the first position (e.g., the lowest position) of the gripper 130 for detecting whether the gripper 130 reaches the lowest position.

[0112] The first motor 140 is disposed on the substrate 110, connected to the gripper 130, and configured to drive the gripper 130 to move between the first position and the second position along the first guide rail 120. For example, the transfer device 100 further includes a first synchronous belt 170. The first synchronous belt 170 is respectively connected to the first motor 140 and the gripper 130, such that the first motor 140 can drive the gripper 130 to move between the first position and the second position through the first synchronous belt 170. Further, the first synchronous belt 170 can be connected to the output shaft of the first motor 140 through a pulley and can be connected to the gripper 130 through any form of connecting member to drive the gripper 130 to move under the drive of the first motor 140. The present invention does not specifically limit the connection form between the first synchronous belt 170 and the gripper 130, as long as the connection between the two can be achieved. It can be understood that the limiting structure 200, the first guide rail 120, the gripper 130, the first motor 140, and the first synchronous belt 170 are all mounted on the substrate 110 and can move together with the substrate 110.

[0113] Furthermore, as Figures 1 - 4As shown in FIGS. 20 - 21, the transfer device 100 further includes a second guide rail 150 and a second motor 160. The second guide rail 150 is arranged at an angle (e.g., perpendicularly) to the first guide rail 120. The substrate 110 is slidably connected to the second guide rail 150. The second motor 160 is connected to the substrate 110 and is configured to drive the substrate 110 to move along the second guide rail 150 to transfer the bracket 300 along the second guide rail 150.

[0114] For example, the transfer device 100 further includes a second synchronous belt 180. The second synchronous belt 180 is respectively connected to the second motor 160 and the substrate 110, such that the second motor 160 can drive the substrate 110 to move along the second guide rail 150 through the second synchronous belt 180, thereby driving the components (such as the limit structure 200, the first guide rail 120, the gripper 130, the first motor 140, and the first synchronous belt 170) mounted on the substrate 110 to move together. Further, the second synchronous belt 180 can be connected to the output shaft of the second motor 160 through a pulley, and can be connected to the substrate 110 through any form of connecting member to drive the substrate 110 to move under the drive of the second motor 160. The present utility model does not specifically limit the connection form between the second synchronous belt 180 and the substrate 110, as long as the connection between the two can be achieved. It can be understood that the second guide rail 150, the second motor 160, and the second conveyor belt 180 can be mounted on other substrates or mounting plates. The present utility model does not specifically limit this, as long as the three can be fixedly installed.

[0115] Further, the transfer device 100 further includes a third sensor 193 mounted on the second guide rail 150. The third sensor 193 is arranged at a specified movement position of the substrate 110 along the second guide rail 150. At this specified movement position, there is also provided a cover glass applying device (also referred to as a sealing device) for applying a cover glass to the slide 500. When the third sensor 193 detects that the substrate 110 moves to this specified movement position, the substrate 110 stops moving, and the gripper 130 is driven by the first motor 140 to move downward along the first guide rail 120 to the unloading position. At the unloading position, the slide 500 is unloaded from the bracket 300 through a device such as a manipulator and placed on the cover glass applying device to apply a cover glass to the slide 500.

[0116] The transfer device 100 further includes a fourth sensor 194 mounted on the first guide rail 120. The fourth sensor 194 is arranged at the unloading position to detect whether the gripper 130 reaches the unloading position.

[0117] As Figures 5 - 13 shown, the gripper 130 includes a first gripping portion 131 and a second gripping portion 132. The first gripping portion 131 is arranged along the first guide rail 120, for example, along Figure 3In the up - down direction shown, the second gripping part 132 is disposed opposite to the first gripping part 131 (e.g., along the Figure 3 front - back direction shown) and connected to each other to grip the ear part 310 of the bracket 300 together with the first gripping part 131. The opposite side surfaces of the first gripping part 131 and the second gripping part 132 respectively have inclined portions facing each other to form a recess 133 for receiving the ear part 310 of the bracket 300. For example, taking the direction shown in Figure 3 as an example, the upper part of the rear side surface of the first gripping part 131 is cut obliquely from top to bottom and from front to back, while the upper part of the front side surface of the second gripping part 132 is inclined from top to bottom and from back to front, whereby the inclined portions of the first gripping part 131 and the second gripping part 132 form a generally V - shaped recess 133. Further, the ear part 310 of the bracket 300 has a hooked segment that can be hooked in the recess 133.

[0118] Further, the second gripping part 132 includes a first gripping segment 1321 and a second gripping segment 1322. The first gripping segment 1321 is disposed opposite to the first gripping part 131 (e.g., along the Figure 3 left - right direction shown) and connected to each other. The second gripping segment 1322 is connected to the first gripping segment 1321 and is angled (e.g., perpendicular). The second gripping segment 1322 extends from the first gripping segment 1321 in a direction away from the first guide rail 120 (e.g., to the left, as shown in Figure 3 ) so as to be offset from the first gripping part 131, e.g., along the Figure 3 left - right direction shown. The thickness of the second gripping segment 1322 gradually decreases in a direction away from the first guide rail 120. It can be understood that the thickness of the second gripping segment 1322 is the dimension of the second gripping segment 1322 in the up - down direction as shown in Figure 3 . In addition, the width of the second gripping segment 1322 gradually increases in a direction away from the first guide rail 120, whereby the second gripping segment 1322 can have a greater contact length with the ear part 310 of the bracket 300. It can be understood that the width of the second gripping segment 1322 is the dimension of the second gripping segment 1322 in the front - back direction as shown in Figure 3 .

[0119] As shown in Figure 7 , the first gripping segment 1321 has a gripping protrusion 1323 on the surface opposite to the first gripping part 131 (such as the front surface shown in Figure 3 ). The gripping protrusion 1323 covers a part of the surface of the first gripping segment 1321 opposite to the first gripping part 131. One end of the gripping protrusion 1323 facing the pressing member (e.g., Figure 3The upper end of the grab protrusion 1323 has a first edge 13231 and a second edge 13232 that are arranged opposite to each other. For example, the first edge 13231 and the second edge 13232 are respectively located on opposite sides of the upper end of the grab protrusion 1323 (for example Figure 3 In some embodiments, the gripping protrusion 1323 has one end facing the pressing member (eg, Figure 3 The upper end shown in FIG. 1 has a chamfer adjacent to the first guide rail 120, the second edge 13232 is configured as an edge of the chamfer adjacent to the first guide rail 120, and the first edge 13231 is configured as an end of the gripping protrusion 1323 facing the pressing member (eg Figure 3 The upper end shown is an edge facing away from the first guide rail 120.

[0120] Further, the end of the second grabbing section 1322 that is away from the first guide rail 120 (eg Figure 3 The left end as shown has a third edge 13221 , and the first edge 13231 to the third edge 13221 are respectively used to abut the ear 310 of the bracket 300 to grab the bracket 300 .

[0121] Specifically, Figures 8 - 13 As shown, the ear portion 310 of the bracket 300 includes a body section 311 and a hook section 312, wherein the hook section 312 is connected to the body section 311 and extends toward the outside of the bracket 300. The first edge 13231 and the second edge 13232 are respectively used to abut against the two inclined inner side walls of the hook section 312, and the third edge 13221 is used to abut against the body section 311, so that the gripping member 130 supports the ear portion 310 through the above three edges and further grips the ear portion 310 through the recess 133. It should be noted that Figure 8 and 9 The figure shows the situation of setting the limiting structure 200. Figure 10 and 11 FIG. 2 shows a case where there is no limiting structure 200 and the second edge 13232 is not worn. Figure 12 and 13 It shows a situation where there is no limiting structure 200 and the second edge 13232 is worn.

[0122] In an embodiment of the present utility model, both sides of the bracket 300 have ear portions 310, and the gripping member 130 only grips the ear portion 310 on one side of the bracket 300 to save the space occupied by the transmission device 100. However, after long-term use, the above three edges may be worn to varying degrees. In particular, for the second edge 13232, the worn second edge 13232 cannot abut and support the inner side wall of the hook-shaped section 312 of the ear portion 310 as expected. If there is no limiting structure 200 to limit the ear portion 310, for example, there is no limiting structure 200 and the gripping member 130 to clamp the ear portion 310 between the two to limit the degree of freedom of the ear portion 310 in the vertical direction (such as Figure 15 the up and down direction shown), the ear portion 310 and the bracket 300 will tilt, and even the hook-shaped section 312 will disengage from the first edge 13231, as shown in Figure 12 and 13 shown. In this case, the bottom of the tilted bracket 300 will rub or collide with other components during transmission, which may damage the slide 500 placed in the bracket 300.

[0123] For example, when the bracket 300 is gripped by the gripping member 130 and moves to the highest position, in the case where there is no limiting structure 200 pressing the ear portion 310 and the second edge 13232 is worn, the bracket 300 will tilt, and the bottom of the tilted bracket 300 will contact the conveying device 400 used to convey the bracket 300 to the transmission device 100. Thus, when the second motor 160 drives the substrate 110 to drive the bracket 300 to move towards the designated position, the tilted bracket 300 will rub or collide with the conveying device 400, which may damage the slide 500 placed in the bracket 300.

[0124] By providing the limiting structure 200 in the embodiment of the present utility model, the pressing member of the limiting structure 200 and the gripping member 130 stably clamp the ear portion 310 of the bracket 300 between the two. Thus, even if the second edge 13232 is worn, the ear portion 310 and the bracket 300 will not tilt, as shown in Figure 8 and 9 shown, thereby avoiding the bracket 300 from rubbing or colliding with other components during transmission, and thus preventing the slide 500 placed in the bracket 300 from being damaged.

[0125] According to an embodiment of the present utility model, a cover glass machine 1000 includes a carrier device 400, a cover glass applying component, and a transmission device 100. The carrier device 400 is used to carry the bracket 300 to the transmission device 100, and the cover glass applying component is used to apply a cover glass to the slide 500. The transmission device 100 is used to transmit the bracket 300 from the carrier device 400 to the cover glass applying component for further processing of the slide 500, such as sealing the slide 500, that is, applying a cover glass to the slide 500.

[0126] This application also discloses a transmission method, which utilizes the transmission device 100 according to an embodiment of the present utility model and includes the following steps.

[0127] In step S100, the bracket 300 is carried to the transmission device 100 by the carrier device 400.

[0128] In step S200, the ear 310 of the bracket 300 is grasped by the gripper 130 at the first position, and the bracket 300 is moved along the first guide rail 120 to the second position by the first motor 140. At this time, the gripper 130 and the bracket 300 are at the initial position along the second guide rail 150.

[0129] In step S300, the ear 310 of the bracket 300 is clamped between the limiting structure 200 and the gripper 130.

[0130] In step S400, the bracket 300 is moved along the second guide rail 150 to the designated position by the second motor 160.

[0131] In step S500, the bracket 300 is moved along the first guide rail 120 to the unloading position by the first motor 140.

[0132] In step S600, after the slide 500 in the bracket 300 is unloaded, the bracket 300 is moved along the first guide rail 120 to the second position by the first motor 140.

[0133] In step S700, the bracket 300 is moved along the second guide rail 150 to the third position by the second motor 160, and the bracket 300 is unloaded at the third position, where the third position is located between the initial position and the designated position.

[0134] In step S800, the gripper 130 is held at the third position until the next bracket 300 starts to be grasped.

[0135] In step S900, when starting to grasp the next bracket 300, the gripper 130 is moved along the second guide rail 150 to the initial position by the second motor 160, and the gripper 130 is moved along the first guide rail 120 to the first position by the first motor 140.

[0136] It is understood that the first position and the second position are defined along the first guide rail 120, the initial position, the third position and the designated position are defined along the second guide rail 150, and the unloading position is defined along the first guide rail 120 and the second guide rail 150.

[0137] By using the transmission device 100 including the limit structure 200, the bracket 300 will not tilt during transmission, so that it will not rub or collide with other components, thereby preventing the slide 500 placed in the bracket 300 from being damaged.

[0138] The possible aspects of the present invention will be described below.

[0139] Aspect 1: A limit structure for a transmission device, comprising:

[0140] A base configured to be fixed to the substrate of the transmission device; and

[0141] A pressing member connected to the base and configured to apply a force to an object in contact therewith.

[0142] Aspect 2: The limit structure according to Aspect 1, wherein the base includes a support plate; and

[0143] The pressing member includes:

[0144] A cover plate disposed on the support plate;

[0145] A pressing plate connected to the cover plate and movable relative to the cover plate; and

[0146] An elastic member disposed between the cover plate and the pressing plate and configured to apply a force to the pressing plate in a direction away from the cover plate when the pressing plate moves toward the cover plate.

[0147] Aspect 3: The limit structure according to Aspect 2, wherein when the pressing plate is in the initial position, the elastic member is in a pre-compressed state to apply a pre-force to the pressing plate in the direction away from the cover plate, wherein the initial position refers to the position where the pressing plate does not move toward the cover plate under the action of an external force.

[0148] Aspect 4: The limit structure according to Aspect 2 or 3, wherein the support plate has a first support plate portion and a second support plate portion connected to and angled with the first support plate portion, and the second support plate portion has a first notch.

[0149] The cover plate includes a first cover plate portion and a second cover plate portion that is connected to the first cover plate portion and forms an angle therewith. The first cover plate portion includes a first protruding portion, and the first protruding portion is fixed in the first notch. The first cover plate portion forms an angle with the first support plate portion and the second cover plate portion is spaced apart from the second support plate portion to define a receiving space. The pressing plate is disposed in the receiving space and one end of the pressing plate facing away from the cover plate protrudes from the receiving space.

[0150] Aspect 5. The limiting structure according to aspect 4, wherein the first protruding portion has a first through hole, and the bottom of the first notch has a first blind hole, and the first through hole is aligned with the first blind hole.

[0151] The limiting structure further includes a first fastener, and the first fastener passes through the first through hole and is fitted in the first blind hole to fix the first protruding portion in the first notch.

[0152] Aspect 6. The limiting structure according to aspect 4 or 5, wherein one side of the pressing plate facing the cover plate includes a second notch, and the cover plate includes a second protruding portion disposed on one side of the first cover plate portion facing the pressing plate. The second protruding portion is offset from the first protruding portion in the direction from the second cover plate portion to the second support plate portion. The second protruding portion extends toward the pressing plate and is movably fitted in the second notch.

[0153] Aspect 7. The limiting structure according to aspect 6, wherein the pressing plate further includes a first stop member disposed at an opening of the second notch, and the first stop member protrudes from an edge of the second notch to cover a part of the opening of the second notch.

[0154] One end of the second protruding portion facing the pressing plate includes a second stop member, and the second stop member protrudes in a direction opposite to the protruding direction of the first stop member and is configured to interact with the first stop member to prevent the second protruding portion from disengaging from the second notch in the direction from the pressing plate to the cover plate.

[0155] Aspect 8. The limiting structure according to aspect 7, wherein the cover plate has a second through hole that penetrates the first cover plate portion and the second protruding portion. The bottom of the second notch has a second blind hole, and the second blind hole is offset from the first stop member and is aligned with the second through hole. Two ends of the elastic member are respectively disposed in the second through hole and the second blind hole.

[0156] Aspect 9. The limiting structure according to Aspect 8, wherein the limiting structure further includes a second fastener located in the second through hole to fix the end of the elastic member in the second through hole.

[0157] Aspect 10. The limiting structure according to any one of Aspects 4 to 9, wherein the pressing plate has a step on the side facing the second cover portion, and the second cover portion is configured to abut against the step when the pressing plate moves the maximum distance towards the cover.

[0158] Aspect 11. The limiting structure according to any one of Aspects 4 to 10, wherein the second support plate portion includes two spaced-apart first notches and a first boss located between the two first notches.

[0159] The first cover portion includes two spaced-apart first protrusions and a first gap located between the two first protrusions.

[0160] The two first protrusions are respectively fixed in the two first notches, and the first boss is fitted in the first gap.

[0161] Aspect 12. The limiting structure according to Aspect 11, wherein the cover includes two spaced-apart second protrusions and a second gap located between the two second protrusions, the two second protrusions correspond to the two first protrusions one by one, and the second gap corresponds to the first gap.

[0162] The pressing plate includes two spaced-apart second notches and a second boss located between the two second notches.

[0163] The two second protrusions are respectively movably fitted in the two second notches, and the second boss is movably fitted in the second gap.

[0164] The second stoppers of the two second protrusions protrude in a direction away from each other, while the first stoppers at the two second notches protrude in a direction towards each other.

[0165] Aspect 13. The limiting structure according to Aspect 1, wherein the base includes a first part and a second part connected to and angled with the first part.

[0166] The pressing member is connected to and angled with the second part, and the pressing member and the first part are respectively located on opposite sides of the second part.

[0167] Aspect 14. The limiting structure according to Aspect 13, wherein the pressing member is configured as a block-shaped member, and the thickness of the pressing member is greater than the thickness of the second part.

[0168] Aspect 15. The limiting structure according to aspect 13, wherein the pressing member is configured as a plate-like member, the thickness of the pressing member is substantially equal to the thickness of the second part, the pressing member includes a first plate segment connected to the second part at an angle and a second plate segment connected to the first plate segment at an angle, and the second plate segment and the second part are spaced apart by the first plate segment.

[0169] Aspect 16. A transmission device, comprising:

[0170] A substrate;

[0171] The limiting structure according to any one of aspects 1-15, wherein the base of the limiting structure is fixed to the substrate;

[0172] A first guide rail disposed on the substrate;

[0173] A grasping member slidably connected to the first guide rail and configured to grasp a bracket to be transmitted at a first position and to abut an ear portion of the bracket against the pressing member of the limiting structure at a second position; and

[0174] A first motor disposed on the substrate, connected to the grasping member, and configured to drive the grasping member to move along the first guide rail between the first position and the second position.

[0175] Aspect 17. The transmission device according to aspect 16, further comprising:

[0176] A second guide rail disposed at an angle to the first guide rail, the substrate being slidably connected to the second guide rail; and

[0177] A second motor connected to the substrate and configured to drive the substrate to move along the second guide rail to transmit the bracket along the second guide rail.

[0178] Aspect 18. The transmission device according to aspect 16 or 17, wherein the grasping member includes:

[0179] A first grasping portion disposed along the first guide rail; and

[0180] A second grasping portion disposed opposite to and connected to the first grasping portion to clamp the ear portion of the bracket together with the first grasping portion,

[0181] wherein opposite side surfaces of the first grasping portion and the second grasping portion respectively have inclined portions opposite to each other to form a recess for receiving the ear portion of the bracket.

[0182] Aspect 19. The transfer device according to aspect 18, wherein the second grasping part includes:

[0183] A first grasping section, which is disposed opposite to and connected with the first grasping part; and

[0184] A second grasping section, which is connected with and angled to the first grasping section. The second grasping section extends from the first grasping section in a direction away from the first guide rail so as to be staggered from the first grasping part. And the thickness of the second grasping section gradually becomes smaller in the direction away from the first guide rail, while the width of the second grasping section gradually becomes larger in the direction away from the first guide rail.

[0185] Wherein, the first grasping section has grasping protrusions on the surface opposite to the first grasping part. One end of the grasping protrusion facing the pressing part has a first edge and a second edge arranged oppositely. One end of the second grasping section away from the first guide rail has a third edge. The first edge to the third edge are respectively used to abut against the ear part of the bracket to grasp the bracket.

[0186] Aspect 20. The transfer device according to aspect 19, wherein one end of the grasping protrusion facing the pressing part has a chamfer adjacent to the first guide rail. The second edge is configured as the edge of the chamfer adjacent to the first guide rail, and the first edge is configured as the edge of the grasping protrusion facing the pressing part and away from the first guide rail.

[0187] Aspect 21. A cover glass machine, comprising:

[0188] A carrying device;

[0189] A cover glass applying component; and

[0190] The transfer device according to any one of aspects 16 - 20, and the transfer device is used to transfer the bracket from the carrying device to the cover glass applying component.

[0191] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0192] In addition, the terms "first" and "second" are only used for distinction and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0193] In the present utility model, unless otherwise clearly stipulated and defined, terms such as "mounted", "connected", "joined", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or capable of communicating with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0194] In the present utility model, unless otherwise clearly stipulated and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0195] In the present utility model, terms such as "an embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0196] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Any changes, modifications, substitutions, and variations made by those of ordinary skill in the art to the above embodiments are within the protection scope of the present utility model.

Claims

1. A limiting structure (200), characterized in that, A transmission device (100), comprising: A base configured to be fixed to a substrate (110) of the transmission device (100); and A pressing member connected to the base and configured to apply a force to an object abutting against it.

2. The limit structure (200) according to claim 1, characterized in that, The base includes a support plate (210); and The pressing member includes: A cover plate (220) disposed on the support plate (210); A pressing plate (230) connected to the cover plate (220) and movable relative to the cover plate (220); and An elastic member (240) disposed between the cover plate (220) and the pressing plate (230) and configured to apply a force to the pressing plate (230) in a direction away from the cover plate (220) when the pressing plate (230) moves towards the cover plate (220).

3. The limit structure (200) according to claim 2, wherein, When the pressing plate (230) is in an initial position, the elastic member (240) is in a pre-compressed state to apply a pre-force to the pressing plate (230) in the direction away from the cover plate (220), where the initial position refers to the position where the pressing plate (230) does not move towards the cover plate (220) under the action of an external force.

4. The limiting structure (200) according to claim 2 or 3, characterized in that, The support plate (210) has a first support plate portion (211) and a second support plate portion (212) connected to and angled with the first support plate portion (211), and the second support plate portion (212) has a first notch (2121). The cover plate (220) includes a first cover plate portion (221) and a second cover plate portion (222) connected to and angled with the first cover plate portion (221). The first cover plate portion (221) includes a first protrusion (2211), and the first protrusion (2211) is fixed in the first notch (2121). The first cover plate portion (221) is angled with the first support plate portion (211) and the second cover plate portion (222) is spaced apart from the second support plate portion (212) to define a receiving space (250). The pressing plate (230) is disposed in the receiving space (250) and an end of the pressing plate (230) away from the cover plate (220) protrudes from the receiving space (250).

5. The limit structure (200) according to claim 4, characterized in that, The first protrusion (2211) has a first through hole (22111), and the bottom of the first notch (2121) has a first blind hole (21211), and the first through hole (22111) is aligned with the first blind hole (21211). The limiting structure (200) further includes a first fastener (260) that passes through the first through hole (22111) and fits into the first blind hole (21211) to fix the first protrusion (2211) in the first notch (2121).

6. The position-limiting structure (200) according to claim 4, wherein, One side of the pressing plate (230) facing the cover plate (220) includes a second notch (231). The cover plate (220) includes a second protrusion (223) disposed on one side of the first cover plate portion (221) facing the pressing plate (230). The second protrusion (223) is offset from the first protrusion (2211) in the direction from the second cover plate portion (222) to the second support plate portion (212). The second protrusion (223) extends towards the pressing plate (230) and is movably fitted in the second notch (231).

7. The position-limiting structure (200) according to claim 6, characterized in that, The pressing plate (230) further includes a first stopper (232) disposed at an opening of the second notch (231). The first stopper (232) protrudes from an edge of the second notch (231) to cover a part of the opening of the second notch (231). One end of the second protrusion (223) facing the pressing plate (230) includes a second stopper (2231). The second stopper (2231) protrudes in a direction opposite to the protruding direction of the first stopper (232) and is configured to interact with the first stopper (232) to prevent the second protrusion (223) from disengaging from the second notch (231) in the direction from the pressing plate (230) to the cover plate (220).

8. The limit structure (200) according to claim 7, characterized in that, The cover plate (220) has a second through hole (224) that penetrates the first cover plate portion (221) and the second protrusion (223). The bottom of the second notch (231) has a second blind hole (2311). The second blind hole (2311) is offset from the first stopper (232) and is aligned with the second through hole (224). Two ends of the elastic member (240) are respectively disposed in the second through hole (224) and the second blind hole (2311).

9. The position-limiting structure (200) according to claim 8, wherein The limiting structure (200) further includes a second fastener (270) located in the second through hole (224) to fix an end of the elastic member (240) in the second through hole (224).

10. The position-limiting structure (200) according to claim 4, characterized in that, The pressing plate (230) has a step (233) on a side facing the second cover plate portion (222). The second cover plate portion (222) is configured to abut against the step (233) when the pressing plate (230) moves towards the cover plate (220) by a maximum distance.

11. The limit structure (200) according to claim 4, characterized in that, The second support plate portion (212) includes two spaced-apart first notches (2121) and a first boss (2122) located between the two first notches (2121). The first cover plate portion (221) includes two spaced-apart first protrusions (2211) and a first gap (2212) located between the two first protrusions (2211). The two first protrusions (2211) are respectively fixed in the two first notches (2121), and the first boss (2122) is fitted in the first gap (2212).

12. The limit structure (200) according to claim 11, characterized in that, The cover plate (220) includes two spaced-apart second protrusions (223) and a second gap (225) located between the two second protrusions (223). The two second protrusions (223) correspond to the two first protrusions (2211) one by one, and the second gap (225) corresponds to the first gap (2212). The pressing plate (230) includes two spaced-apart second notches (231) and a second boss (234) located between the two second notches (231). The two second protrusions (223) are respectively movably fitted in the two second notches (231), and the second boss (234) is movably fitted in the second gap (225). The second stoppers (2231) of the two second protrusions (223) protrude in a direction away from each other, while the first stoppers (232) at the two second notches (231) protrude in a direction towards each other.

13. The limit structure (200) according to claim 1, characterized in that, The base includes a first part (201) and a second part (202) connected to and angled with the first part (201). The pressing member is connected to and angled with the second part (202), and the pressing member and the first part (201) are respectively located on opposite sides of the second part (202).

14. The position-limiting structure (200) according to claim 13, wherein The pressing member is configured as a block member (203), and the thickness of the pressing member is greater than the thickness of the second part (202).

15. The limiting structure (200) according to claim 13, wherein, The pressing member is configured as a plate member, the thickness of the pressing member is substantially equal to the thickness of the second part (202), the pressing member includes a first plate segment (204) connected to and angled with the second part (202) and a second plate segment (205) connected to and angled with the first plate segment (204), and the second plate segment (205) and the second part (202) are spaced apart by the first plate segment (204).

16. A transmission device (100), characterized in that, Comprising: A substrate (110); The limiting structure (200) according to any one of claims 1-15, wherein the base of the limiting structure (200) is fixed to the substrate (110); A first guide rail (120) provided on the substrate (110); A grasping member (130) slidably connected to the first guide rail (120) and configured to grasp a bracket (300) to be conveyed at a first position and to abut an ear (310) of the bracket (300) against the pressing member of the limiting structure (200) at a second position; and A first motor (140) provided on the substrate (110), connected to the grasping member (130), and configured to drive the grasping member (130) to move along the first guide rail (120) between the first position and the second position.

17. The transmission device (100) according to claim 16, characterized in that, Further comprising: A second guide rail (150) arranged at an angle to the first guide rail (120), and the substrate (110) is slidably connected to the second guide rail (150); And A second motor (160) is connected to the base plate (110) and is configured to drive the base plate (110) to move along the second guide rail (150) so as to transport the bracket (300) along the second guide rail (150).

18. The transmission device (100) according to claim 16 or 17, characterized in that, The grabbing member (130) comprises: a first gripping portion (131), the first gripping portion (131) being arranged along the first guide rail (120); and a second gripping portion (132), the second gripping portion (132) being arranged opposite to and connected to the first gripping portion (131) so as to clamp the ear portion (310) of the bracket (300) together with the first gripping portion (131), The opposite sides of the first gripping portion (131) and the second gripping portion (132) respectively have inclined portions facing each other to form a recess (133) for receiving the ear (310) of the bracket (300).

19. The transmission device (100) according to claim 18, characterized in that, The second gripping portion (132) comprises: a first gripping section (1321), the first gripping section (1321) and the first gripping portion (131) being arranged opposite to each other and connected to each other; and a second grabbing section (1322), the second grabbing section (1322) being connected to the first grabbing section (1321) and forming an angle therewith, the second grabbing section (1322) extending from the first grabbing section (1321) in a direction away from the first guide rail (120) so as to be staggered with the first grabbing portion (131), and the thickness of the second grabbing section (1322) gradually decreases in a direction away from the first guide rail (120), while the width of the second grabbing section (1322) gradually increases in a direction away from the first guide rail (120), The first grabbing section (1321) has a grabbing protrusion (1323) on a surface opposite to the first grabbing portion (131); the grabbing protrusion (1323) has a first edge (13231) and a second edge (13232) arranged opposite to each other at one end facing the pressing member; the second grabbing section (1322) has a third edge (13221) at one end facing away from the first guide rail (120); the first edge (13231) to the third edge (13221) are respectively used to abut the ear (310) of the bracket (300) to grab the bracket (300).

20. The transmission device (100) according to claim 19, characterized in that, The end of the grabbing protrusion (1323) facing the pressing member has a chamfer adjacent to the first guide rail (120), the second edge (13232) is constructed as the edge of the chamfer adjacent to the first guide rail (120), and the first edge (13231) is constructed as the edge of the end of the grabbing protrusion (1323) facing the pressing member away from the first guide rail (120).

21. A cover glass machine (1000), characterized in that, include: A carrier (400); a coverslip application component; as well as The transfer device (100) according to any one of claims 16 - 20, wherein the transfer device (100) is configured to transfer a stent (300) from the carrier device (400) to the coverslip applying member.

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