Tray mechanism

Abstract

The invention relates to a tray mechanism. The tray mechanism comprises a stand column, a tray assembly, a supporting assembly and a locking piece. Wherein the tray assembly is used for placing related equipment. The supporting assembly is movably arranged on the stand column and used for supporting the tray assembly. The locking piece is used for fixing the supporting assembly to the preset position of the stand column. At the moment, the supporting assembly is movably arranged on the stand column and supports the tray assembly, the supporting assembly can drive the tray assembly to move, then an operator can conduct adaptive adjustment on the position of the tray assembly according to the requirement of the operator in the using process, and therefore the practicability of the overall structure of the tray mechanism can be effectively improved.

Description

Technical Field

[0001] The present application belongs to the technical field of medical devices, and specifically relates to a tray mechanism. Background Art

[0002] The main structure of the tray mechanism under the current trolley is an integrated tray structure formed by combining the mechanism components. It usually includes: tray assembly, left and right hangers, fixing screws, etc. However, the existing tray structure can only be assembled at a fixed height and cannot be adjusted up and down. Therefore, the current tray mechanism often has limitations when used, and the user cannot adjust the height during operation, which affects the operating experience. Summary of the invention

[0003] The present application provides a tray mechanism to solve the technical problem that the tray mechanism cannot achieve height adjustment.

[0004] In order to solve the above technical problems, a technical solution adopted in this application is: a column; a tray assembly for placing related equipment; a support assembly movably arranged on the column and used to support the tray assembly; a locking member for fixing the support assembly at a predetermined position of the column.

[0005] According to one embodiment of the present application, the support assembly includes: a clamping group, which can be movably arranged on the column along the extension direction of the support column; a support member, which is used to be fixed to the clamping group, and the support member is supported and arranged at the bottom of the tray assembly.

[0006] According to one embodiment of the present application, the clamping group includes two oppositely arranged hangers, and the opposite ends of the two hangers are respectively clamped on the opposite sides of the column, and the opposite ends of the two hangers are mutually clamped. The locking piece is detachably arranged on the opposite ends of the two hangers, and is used to relatively fix the opposite ends of the two hangers so that the opposite ends of the two hangers are pressed against the column.

[0007] According to one embodiment of the present application, the opposite ends of the two hangers have corresponding through holes, and the locking member passes through the through holes to lock and fix the two hangers.

[0008] According to an embodiment of the present application, a protrusion is provided at the opposite end of one of the hangers, and a groove matching the protrusion is provided at the opposite end of the other hanger.

[0009] According to an embodiment of the present application, slots are provided on opposite sides of the column along the extension direction of the column, and opposite ends of the two hangers are clamped in the slots.

[0010] According to one embodiment of the present application, the support member includes: a positioning portion, which is sleeved on the outside of the clamping group and fixed to the clamping group by a fastener; and at least one supporting plate, which is arranged on the positioning portion and extends outward from the positioning portion for supporting the bottom of the tray assembly.

[0011] According to one embodiment of the present application, the opposite ends of the two hangers have a first protrusion, and the opposite ends of the two hangers have a second protrusion. The positioning portion corresponds to the first protrusion and is provided with a first limiting groove matching the first protrusion. The positioning portion corresponds to the second protrusion and is provided with a second limiting groove matching the second protrusion.

[0012] According to one embodiment of the present application, the tray assembly includes: a tray main board, which is arranged on the support assembly; a limit plate, which is arranged on both sides of the tray main board, one end of the limit plate is fitted on the bottom of the tray main board, and the other end is bent and extended to protrude from the upper surface of the tray main board.

[0013] According to an embodiment of the present application, a strip hole is provided on one end of the limiting plate that is in contact with the tray main board, and the limiting plate can be adjusted and fixed to the tray main board through the adjusting member.

[0014] The beneficial effects of the present application are as follows: the support assembly in the present application is movably arranged on the column and used to support the tray assembly, and the locking member is used to fix the support assembly at a predetermined position of the column. At this time, the support assembly can drive the tray assembly to move, and then, during use, the operator can adaptively adjust the position of the tray assembly according to his own needs, thereby effectively increasing the practicability of the overall structure of the tray mechanism. The setting of the locking member can not only fix the position of the support assembly after the operator adjusts the position of the tray assembly to strengthen the connection relationship between the support assembly and the column; it can also reduce the connection strength between the support assembly and the column when the operator needs to adjust the position of the tray assembly, so that the support assembly can be movably arranged with the column, thereby facilitating the operator to adjust the position of the tray assembly. Further, the tray assembly is arranged on the support assembly, that is, the support assembly is located at the bottom of the tray assembly, and at this time the support assembly can play a certain supporting role on the tray assembly. When the tray assembly supports a certain weight of equipment, the tray assembly will not tilt and cause the equipment to fall off. In addition, the setting of the support component can also play a supporting role from the bottom of the tray component to avoid abnormal noise caused by the unstable position of the tray component during use by the operator and during product transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of a tray mechanism of the present application;

[0017] Figure 2 It is a schematic diagram of a partial explosion structure of an embodiment of a tray mechanism of the present application;

[0018] Figure 3 It is a partial three-dimensional structural schematic diagram of an embodiment of a tray mechanism of the present application;

[0019] Figure 4 yes Figure 3 A schematic diagram of the partially enlarged structure of part A;

[0020] Figure 5 It is another partial three-dimensional structural schematic diagram of an embodiment of the tray mechanism of the present application. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. It is to be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some structures related to the present application are shown in the accompanying drawings, rather than all structures. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0022] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0023] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise clearly and specifically defined.

[0024] See also Figures 1 to 4 , Figure 1 It is a schematic diagram of the overall structure of an embodiment of a tray mechanism of the present application; Figure 2 It is a schematic diagram of a partial explosion structure of an embodiment of a tray mechanism of the present application; Figure 3 It is a partial three-dimensional structural schematic diagram of an embodiment of a tray mechanism of the present application; Figure 4 yes Figure 3 Schematic diagram of the local enlarged structure of part A.

[0025] In one embodiment of the present application, a tray mechanism 10 is provided. The tray mechanism 10 includes a column 11, a tray assembly 14, a support assembly 12 and a locking member 13. The tray assembly 14 is used to place related equipment. The support assembly 12 is movably disposed on the column 11 and is used to support the tray assembly 14. The locking member 13 is used to fix the support assembly 12 to a predetermined position of the column 11.

[0026] As can be seen from the above structure, the support assembly 12 is movably arranged on the column 11 and supports the tray assembly 14. At this time, the support assembly 12 can drive the tray assembly 14 to move. Then, during use, the operator can adaptively adjust the position of the tray assembly 14 according to his own needs, thereby effectively increasing the practicality and versatility of the overall structure of the tray mechanism 10. The setting of the locking member 13 can not only fix the position of the support assembly 12 after the operator adjusts the position of the tray assembly 14 to strengthen the connection between the support assembly 12 and the column 11; it can also reduce the connection strength between the support assembly 12 and the column 11 when the operator needs to adjust the position of the tray assembly 14, so that the support assembly 12 and the column 11 are movably arranged, thereby facilitating the operator to adjust the position of the tray assembly 14. Furthermore, the tray assembly 14 is arranged on the support assembly 12, that is, the support assembly 12 is located at the bottom of the tray assembly 14. At this time, the support assembly 12 can play a certain supporting role on the tray assembly 14. When the tray assembly 14 supports a certain weight of equipment, the tray assembly 14 will not tilt and cause the equipment to fall off. In addition, the arrangement of the support assembly 12 can also play a supporting role from the bottom of the tray assembly 14, avoiding the tray assembly 14 from being unstable and causing abnormal noise during the use of the operator and the transportation of the product.

[0027] In one embodiment of the present application, the support assembly 12 includes a clamping group 121 and a support member 122. The clamping group 121 can be movably arranged on the column 11 along the extension direction of the support column. The support member 122 is used to be fixed to the clamping group 121. The support member 122 is supported and arranged at the bottom of the tray assembly 14. When the operator needs to adjust the height of the tray assembly 14, since the support member 122 is fixed to the clamping group 121, the clamping group 121 can be moved in the direction of the column 11 to drive the support member 122 to move in the direction of the column 11. The support member 122 is supported and arranged at the bottom of the tray assembly 14. On the one hand, the tray assembly 14 can move along the direction of the column 11 with the movement of the support member 122; on the other hand, the support member 122 can play a certain supporting role on the tray assembly 14. At this time, when the tray assembly 14 supports a certain weight of equipment, the tray assembly 14 will not tilt and cause the equipment to fall off. The support member 122 is supported on the bottom of the tray assembly 14 , which can also make the structure of the entire tray mechanism 10 more beautiful.

[0028] It should be noted that the support member 122 and the tray assembly 14 may be connected by integral molding, or the support member 122 and the tray assembly 14 may be connected by other methods such as welding and bolt fixing, which are not limited here.

[0029] In one embodiment of the present application, the clamping group 121 includes two hangers 1211 arranged opposite to each other. The opposite ends of the two hangers 1211 are clamped on the opposite sides of the column 11 respectively. The opposite ends of the two hangers 1211 are clamped to each other. The locking member 13 is detachably arranged on the opposite ends of the two hangers 1211. It is used to relatively fix the opposite ends of the two hangers 1211 so that the opposite ends of the two hangers 1211 abut against the column 11. The locking member 13 can adjust the relative position between the two hangers 1211. By driving the two hangers 1211 to approach each other, the two hangers 1211 can be clamped on the column 11 and then fixed to the column 11; by driving the two hangers 1211 to move away from each other, a gap can be generated between the two hangers 1211 and the side of the column 11, so that the clamping group 121 can move relative to the column 11. At this time, since the locking piece 13 is detachably arranged at the opposite ends of the two hangers 1211, when the user needs to adjust the position of the tray assembly 14, the user can adjust the connection strength between the locking piece 13 and the two hangers 1211 to weaken the connection strength between the two hangers 1211, and a gap is generated between the opposite ends of the two hangers 1211 and the side of the column 11, which can move relative to each other, and then the relative position relationship between the clamping group 121 and the column 11 can be adjusted, so that the clamping group 121 can drive the support member 122 and the tray assembly 14 to move, and can be freely adjusted to any position of the column 11. Two hangers 1211 are provided, and the locking members 13 are detachably provided at the opposite ends of the two hangers 1211. On the one hand, during the production process of the tray mechanism 10, there is no need to open slots on the column 11 and use screws to achieve relative fixation between the clamping group 121 and the column 11; on the other hand, only the locking members 13 are needed to increase the connection strength between the two hangers 1211 so that the two hangers 1211 can clamp the column 11, so that the entire installation process can also be more convenient.

[0030] Of course, in other embodiments, the two brackets 1211 may also be fixed to the column 11 by bolts respectively.

[0031] In one embodiment of the present application, the opposite ends of the two hangers 1211 have corresponding through holes (not shown in the figure). The locking member 13 passes through the through holes to lock and fix the two hangers 1211. At this time, the locking member 13 directly passes through the through holes to lock the two hangers 1211, thereby enabling the two hangers 1211 to be clamped with the column 11, making the entire operation simpler and faster, and ensuring that the two hangers 1211 are fixed at the same height.

[0032] Specifically, the locking member 13 can be a screw, and the through hole of one of the hangers 1211 has an internal thread. The locking member 13 passes through the through hole without internal thread and the through hole with internal thread in sequence and then locks with the through hole with internal thread, so that the two hangers 1211 are clamped on the column 11. Alternatively, the locking member 13 can also be a screw, and the screw can pass through the two through holes and then be tightened with the nut, so that the two hangers 1211 are clamped on the column 11. Any locking member 13 that can achieve an adjustable tightening effect is applicable to the present application, and is not limited here.

[0033] Furthermore, a protrusion 1213 is provided at the opposite end of one of the hangers 1211, and a groove 1214 matching the protrusion 1213 is provided at the opposite end of the other hanger 1211. The setting of the protrusion 1213 and the groove 1214 can effectively prevent the two hangers 1211 from being positioned out of alignment with the through hole due to deviation in position during installation, thereby preventing the two hangers 1211 from being properly installed. Therefore, the setting of the protrusion 1213 and the groove 1214 can achieve a preliminary positioning effect for the two hangers 1211 during installation, and the two hangers 1211 can be ensured to be at the same height during installation, and the through holes on the two hangers 1211 can correspond to each other. The locking member 13 can directly pass through the through hole and be locked to achieve the locking and fixing of the two hangers 1211, and clamp them on the column 11.

[0034] In one embodiment of the present application, slots 111 are provided on opposite sides of the column 11 along the extension direction of the column 11, and the opposite ends of the two hangers 1211 are clamped in the slots 111. By providing the slots 111, on the one hand, the two hangers 1211 can play a good limiting role in the extension direction perpendicular to the column 11 by being clamped in the slots 111, so as to prevent the two hangers 1211 from falling off the column 11 during later use; on the other hand, there is no need to use screws or other fixings to achieve the connection between the two hangers 1211 and the column 11, which makes the installation more convenient and quick, and can reduce the number of structural parts and save production costs. In addition, the slots 111 are provided by using the structure of the column 11 itself, and there is no need to use other structural parts to achieve it, which can also reduce production costs.

[0035] Please continue reading Figures 1 to 5 , Figure 5It is another partial three-dimensional structural schematic diagram of an embodiment of the tray mechanism of the present application. In an embodiment of the present application, the support member 122 includes a positioning portion 1221 and a supporting plate 1222. Among them, the positioning portion 1221 is sleeved on the outside of the clamping group 121 and fixed to the clamping group 121 by a fastener 1218. At least one supporting plate 1222 is provided. The supporting plate 1222 is provided on the positioning portion 1221 and extends outward from the positioning portion 1221 to support the bottom of the tray assembly 14. The positioning portion 1221 is sleeved on the outside of the clamping group 121 and fixed to the clamping group 121 by a fastener 1218, which can make the positioning portion 1221 and the clamping group 121 relatively fixed, thereby fixing the tray assembly 14 to a predetermined position of the column 11. The support plate 1222 can provide a certain support to the tray assembly 14, and can also provide a certain protection to the bottom of the tray assembly 14 during use by the operator and during transportation of the product, so as to prevent the bottom of the tray assembly 14 from being worn and scratched due to long-term use by the operator and bumps during transportation of the product. Therefore, the support plate 1222 can not only provide a support to the tray assembly 14, but also provide a protection to the tray assembly 14, thereby ensuring the overall service life of the entire structure.

[0036] It should be noted that the positioning portion 1221 and the clamping group 121 can be fixedly connected by one fastener 1218 or by multiple fasteners 1218. Specifically, when the weight of the equipment supported by the tray assembly 14 is greater, more fasteners 1218 can be provided to achieve the fixed connection. At this time, the connection stability between the positioning portion 1221 and the clamping group 121 can be ensured, and no limitation is made here.

[0037] Specifically, the plurality of fasteners 1218 may be distributed on two hangers 1211 , or may be provided on only one hanger 1211 , and may be adjusted according to actual needs.

[0038] In addition, the number of the supporting plates 1222 may be one, or the number of the supporting plates 1222 may be two, or the number of the supporting plates 1222 may be five, which is not limited here. The extension direction of the supporting plate 1222 may be any direction, which is not limited here. In an embodiment of the present application, the supporting plate 1222 is disposed on the positioning portion 1221, and may have a plurality of extension directions when extending outward from the positioning portion 1221. For example, the supporting plate 1222 may extend from the positioning portion 1221 toward a first direction X away from the column 11, thereby providing a better support for the tray assembly 14; the supporting plate 1222 may also extend from the positioning portion 1221 along a second direction Y and a third direction Z intersecting with the first direction X, thereby providing multi-directional support for the tray assembly 14, wherein the second direction Y and the third direction Z are directions extending toward both sides of the column 11, respectively. Specifically, there are four supporting plates 1222, two of which are arranged on the side of the positioning portion 1221 away from the column 11 and extend toward the first direction X, and the other two supporting plates 1222 are arranged on both sides of the positioning portion 1221 and extend toward the second direction Y and the third direction Z respectively. At this time, the tray assembly 14 can have a better supporting force, which can make the tray assembly 14 more stable during later use. Further, in order to achieve preliminary positioning of the positioning portion 1221 and the clamping group 121, the opposite ends of the two hangers 1211 are provided with a first protrusion 1215, and the opposite ends of the two hangers 1211 are provided with a second protrusion 1216. The positioning portion 1221 is provided with a first limiting groove 1223 corresponding to the first protrusion 1215, and the positioning portion 1221 is provided with a second limiting groove 1224 corresponding to the second protrusion 1216, which matches the second protrusion 1216. Specifically, during the installation of the positioning portion 1221 and the clamping group 121, the first protrusion 1215 is clamped in the first limiting groove 1223, and the second protrusion 1216 is clamped in the second groove 1214, so that the positioning portion 1221 and the clamping group 121 can be initially positioned, and then fixed to the clamping group 121 by the fastener 1218, so that the connection between the positioning portion 1221 and the clamping group 121 can be more stable. In addition, by respectively providing the first protrusion 1215 and the second protrusion 1216 on the two hangers 1211, and providing the first limiting groove 1223 and the second limiting groove 1224 on the positioning portion 1221 corresponding to the first protrusion 1215 and the second protrusion 1216, the connection strength between the positioning portion 1221 and the clamping group 121 can be further improved, so that the structure of the entire tray mechanism 10 can be more stable. In addition, the initial positioning of the positioning portion 1221 and the clamping group 121 can be achieved through their own structural parts, without the need for other structural parts to achieve initial positioning and connection between the two, which can effectively reduce the number of structural parts and thus effectively reduce production costs.

[0039] In one embodiment of the present application, the tray assembly 14 also includes a tray main board 141 and a limiting plate 142. The tray main board 141 is arranged on the support assembly 12. It is used to carry related equipment, etc. The limiting plates 142 are arranged on both sides of the tray main board 141. One end of the limiting plate 142 is fitted on the bottom of the tray main board 141, and the other end is bent and extended to the upper surface protruding from the tray main board 141. At this time, one end of the limiting plate 142 is fitted on the bottom plate of the tray main board 141, which can ensure the connection strength between the limiting plate 142 and the tray main board 141. The other end of the limiting plate 142 extends to the upper surface protruding from the tray main board 141, which can play a certain limiting role on the equipment placed on the tray main board 141, so as to prevent the equipment from falling off from both sides of the tray main board 141 and causing damage to the equipment.

[0040] Preferably, there are two limit plates 142, which are respectively arranged on both sides of the tray main board 141. Of course, in other embodiments, there may be only one limit plate 142, or there may be multiple limit plates 142, which are not limited here.

[0041] Furthermore, a strip hole 1421 is provided on one end of the limiting plate 142 that is in contact with the tray main board 141. The limiting plate 142 is adjustable and fixed to the tray main board 141 through the adjusting member 143. At this time, the setting of the limiting plate 142 can limit the device placed on the tray main board 141 to prevent the device on the tray main board 141 from falling off from the side during later use, thereby causing damage to the device. Therefore, the limiting plate 142 can play a good role in preventing it from falling off. A number of strip holes 1421 are provided on one end of the limiting plate 142 that is in contact with the tray main board 141. When the limiting plate 142 and the tray main board 141 are connected through the adjusting member 143, the length of the limiting plate 142 extending out of the tray main board 141 can be adjusted by adjusting the position of the adjusting member 143 in the strip hole 1421. At this time, the operator can adjust the width of the limit plate 142 according to the size of the device placed on the tray mainboard 141, so that the operator can have more device model options to further improve the operator's overall experience.

[0042] It should be noted that the limiting plate 142 and the tray main board 141 can be connected by the adjusting member 143, or can be integrally formed, which is not limited here. In addition, preferably, the end of the limiting plate 142 that is in contact with the tray main board 141 is usually arranged on the side of the tray main board 141 where no device is placed, so as to make the overall structure more beautiful. Of course, in other embodiments, the limiting plate 142 can also be placed on the side of the tray main board 141 where the device is placed, which is not limited here.

[0043] Furthermore, an escape groove 1217 is provided on one end of the two hangers 1211 facing the support member 122. The escape groove 1217 extends along the extension direction of the hangers 1211. Specifically, in the process of clamping the two hangers 1211 by the locking member 13, the escape groove 1217 can leave a certain escape space for the operator to install, so that the production personnel can leave a certain space to adjust the tightness of the locking member 13 during the initial installation and the later height adjustment process of the operator, thereby facilitating the operation of the production personnel and the operator.

[0044] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0045] It should be noted that the terms "horizontal", "vertical" and the like do not mean that the components are absolutely horizontal or vertical, but can be slightly tilted; the terms "parallel", "vertical" and the like do not mean that the components are absolutely parallel or vertical, but can form a certain angle deviation. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted. In addition, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the present application is usually placed when used, which is only for the convenience of describing the embodiments of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application.

[0046] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A tray mechanism, characterized in that: include: Column; Tray assembly, used to place related equipment; A support assembly, movably disposed on the column and used to support the tray assembly; A locking member is used to fix the support assembly at a predetermined position of the column.

2. The tray mechanism according to claim 1, characterized in that: The support assembly comprises: A clamping group, which can be movably arranged on the column along the extension direction of the column; The support member is used to be fixed to the clamping group, and the support member is supported and arranged at the bottom of the tray assembly.

3. The tray mechanism according to claim 2, characterized in that: The clamping group includes two oppositely arranged hangers, and the opposite ends of the two hangers are respectively clamped on the opposite sides of the column, and the opposite ends of the two hangers are clamped with each other. The locking piece is detachably arranged on the opposite ends of the two hangers, and is used to relatively fix the opposite ends of the two hangers so that the opposite ends of the two hangers are pressed against the column.

4. The tray mechanism according to claim 3, characterized in that: The opposite ends of the two hangers are provided with corresponding through holes, and the locking member passes through the through holes to lock and fix the two hangers.

5. The tray mechanism according to claim 3, characterized in that: A protrusion is arranged at the opposite end of one of the hangers, and a groove matching the protrusion is arranged at the opposite end of the other hanger.

6. The tray mechanism according to claim 3, characterized in that: The opposite sides of the column are provided with clamping grooves along the extending direction of the column, and the opposite ends of the two hanging brackets are clamped in the clamping grooves.

7. The tray mechanism according to claim 3, characterized in that: The support member comprises: A positioning portion, which is sleeved outside the clamping group and fixed to the clamping group by a fastener; At least one supporting plate is provided, and the supporting plate is arranged on the positioning portion and extends outward from the positioning portion to be supported on the bottom of the tray assembly.

8. The tray mechanism according to claim 7, characterized in that: The opposite ends of the two hangers have a first protrusion, and the opposite ends of the two hangers have a second protrusion. The positioning portion corresponds to the first protrusion and is provided with a first limiting groove matching the first protrusion. The positioning portion corresponds to the second protrusion and is provided with a second limiting groove matching the second protrusion.

9. The tray mechanism according to claim 1, characterized in that: The tray assembly comprises: A tray mainboard is arranged on the supporting assembly; The limiting plates are arranged on both sides of the tray main board, one end of the limiting plates is fitted on the bottom of the tray main board, and the other end is bent and extended to protrude from the upper surface of the tray main board.

10. The tray mechanism according to claim 9, characterized in that: A strip hole is provided on one end of the limit plate that is in contact with the tray main board, and the limit plate can be adjusted and fixed to the tray main board through an adjusting member.

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