Bearing mechanism

Abstract

The utility model provides a bearing mechanism which comprises two connecting plates arranged in the first horizontal direction in a spaced mode. The two ends of the bearing rod are connected with the two connecting plates correspondingly, and the bearing rod is used for abutting against the ends of the flaky materials in the vertical direction; the limiting rod and the bearing rod are arranged in a spaced mode in the vertical direction, the limiting rod and the bearing rod define a containing space used for containing the sheet materials, the length direction of the limiting rod and the first horizontal direction are arranged to form an acute angle, and a plurality of limiting grooves are formed in the limiting rod so as to contain the ends of the sheet materials located in the containing space; the two sets of lugs are arranged on the two connecting plates respectively, each set of lugs is located on the side, away from the containing space, of the corresponding connecting plate, and at least two lugs in each set of lugs are arranged at intervals in the vertical direction. By means of the bearing mechanism, blocking and protection of the flaky materials arranged on the bearing mechanism can be enhanced, and the probability that the flaky materials are damaged is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of photovoltaic and semiconductor product production, and in particular to a bearing mechanism. Background Art

[0002] In the process of photovoltaic and semiconductor product production, multiple sheet materials need to be installed on a carrying mechanism, and then the automated equipment can carry the multiple sheet materials by carrying the carrying mechanism. The carrying mechanism can be a graphite boat or a quartz boat.

[0003] At present, the vertical support mechanism for placing sheet materials is usually provided with two layers of slot bars, one layer of which faces the other, and slots are provided. The sheet materials can enter the corresponding slots from the side of the support mechanism to be installed on the support mechanism. When the automated equipment flips the support mechanism, some sheet materials may be separated from both sides of the support mechanism, resulting in an increased damage rate of the sheet materials. Utility Model Content

[0004] In view of the above, it is necessary to provide a bearing mechanism to solve the above defects.

[0005] An embodiment of the present application provides a bearing mechanism for bearing multiple sheet materials, the bearing mechanism comprising: two connecting plates, the two connecting plates are spaced apart along a first horizontal direction; a bearing rod, the two ends of the bearing rod are respectively connected to the two connecting plates, the bearing rod is used to stop the end of the sheet material in the vertical direction; a limiting rod, the limiting rod and the bearing rod are spaced apart in the vertical direction, the limiting rod and the bearing rod are enclosed to form a receiving space for receiving the sheet material, the length direction of the limiting rod is set at an acute angle to the first horizontal direction, a plurality of limiting grooves are provided on the limiting rod, the notches of the limiting grooves are set toward the receiving space to receive the end of the sheet material located in the receiving space; two groups of lugs, respectively arranged on the two connecting plates, and each group of lugs is located on the side of the corresponding connecting plate away from the receiving space, and at least two lugs in each group of lugs are spaced apart in the vertical direction; wherein the first horizontal direction, the second horizontal direction and the vertical direction are perpendicular to each other.

[0006] Optionally, a plurality of bearing grooves are formed on the bearing rod, and the groove openings of the plurality of bearing grooves are arranged toward the accommodating space to accommodate the end portions of the sheet material located in the accommodating space.

[0007] Optionally, the length direction of the bearing bar is arranged at an acute angle to the first horizontal direction.

[0008] Optionally, the notch of the bearing groove is arranged to expand in a direction toward the accommodating space.

[0009] Optionally, there are multiple load-bearing bars, and the multiple load-bearing bars are arranged at intervals in the second horizontal direction.

[0010] Optionally, the notch of the limiting groove is arranged to expand in a direction toward the accommodating space.

[0011] Optionally, there are two groups of limiting rods, each group of limiting rods has at least one limiting rod, the two groups of limiting rods are spaced apart in the second horizontal direction, and the limiting groove is provided on one side of the limiting rod facing the other group of limiting rods.

[0012] Optionally, the cross-section of the lug is circular, waist-shaped, elliptical or polygonal, and at least two lugs in each group of lugs are spaced apart in the second horizontal direction.

[0013] Optionally, the two connecting plates include a first connecting plate and a second connecting plate. In the vertical direction, the height of the first connecting plate is greater than the height of the second connecting plate, and one end of the limiting rod connected to the first connecting plate is higher than the end connected to the second connecting plate.

[0014] Optionally, a marking groove is provided on the first connecting plate, and the marking groove avoids the limiting rod and the bearing rod in the second horizontal direction, and avoids the limiting rod and the bearing rod in the vertical direction.

[0015] Through the bearing mechanism provided by the present application, the limiting rod can limit the movement of the sheet material from the second horizontal direction, the bearing rod can limit the movement of the sheet material from the vertical direction, and the limiting groove can limit the movement of the sheet material from the first horizontal direction. In this way, the bearing mechanism can strengthen the isolation and protection of the sheet material installed on the bearing mechanism, reduce the probability of the sheet material detaching from the bearing mechanism during the flipping process of the bearing mechanism, and reduce the probability of the sheet material being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the bearing mechanism in an embodiment of the present application.

[0017] Figure 2 It is a top view of the carrying mechanism in the embodiment of the present application.

[0018] Figure 3 It is a side view of the carrying mechanism in the embodiment of the present application.

[0019] Figure 4 yes Figure 2 Enlarged view of IV in the middle.

[0020] Figure 5 yes Figure 3 Enlarged view of the V in the middle.

[0021] Description of main component symbols:

[0022] 100, bearing mechanism; 101, accommodating space; 11, first connecting plate; 111, marking groove; 12, second connecting plate; 20, bearing rod; 21, bearing groove; 22, second bottom wall; 23, second side wall; 30, limiting rod; 31, limiting groove; 32, first bottom wall; 33, first side wall; 40, lug. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0024] In the present application, the term "plurality" refers to two or more. In addition, it should be understood that in the description of the present application, the terms "first", "second", etc. are only used for the purpose of distinguishing descriptions, and cannot be understood as indicating or implying relative importance, nor can they be understood as indicating or implying an order.

[0025] In the description of the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0026] See also Figure 1 , Figure 1 A supporting mechanism 100 provided in an embodiment of the present application is shown.

[0027] In the embodiment of the present application, the carrying mechanism 100 can carry multiple sheet materials, and the multiple sheet materials are placed upright on the carrying mechanism 100. When the sheet materials are placed upright on the carrying mechanism 100, the sheet materials can be placed upright on the carrying mechanism 100, or placed on the carrying mechanism 100 at an acute angle to the vertical direction.

[0028] It can be understood that the length direction of the supporting mechanism 100 can be defined as the first horizontal direction, the width direction as the second horizontal direction, and the height direction as the vertical direction. Figure 1 As shown, the first horizontal direction can be Figure 1 The X direction and its reverse direction, the second horizontal direction can be Figure 1 The Y direction and its opposite direction in the vertical direction can be Figure 1 The Z direction and its opposite direction.

[0029] In the embodiments of the present application, the type of sheet material is not specifically limited. For example, the sheet material may be, but is not limited to, a silicon sheet, a silicon carbide sheet or a wafer, and the supporting mechanism 100 may be a quartz boat or a graphite boat.

[0030] Please also read Figure 2 and Figure 3 In one embodiment, the bearing mechanism 100 may include two connecting plates, at least one bearing rod 20 and at least one limiting rod 30. The two connecting plates may include a first connecting plate 11 and a second connecting plate 12. The first connecting plate 11 and the second connecting plate 12 are spaced apart in the first horizontal direction. One end of the bearing rod 20 is fixedly connected to the first connecting plate 11, and the other end is fixedly connected to the second connecting plate 12. The bearing rod 20 can stop at one end of the sheet material in the vertical direction. One end of the limiting rod 30 is fixedly connected to the first connecting plate 11, and the other end is fixedly connected to the second connecting plate 12. The limiting rod 30 is spaced apart from the bearing rod 20 in the vertical direction. The limiting rod 30 can stop at one side of the sheet material in the second horizontal direction. The limiting rod 30 and the bearing rod 20 can enclose to form a receiving space 101, and the receiving space 101 can accommodate multiple sheet materials.

[0031] The limiting rod 30 may be provided with a plurality of limiting grooves 31. The plurality of limiting grooves 31 are arranged at intervals in the length direction of the limiting rod 30, and the notches of the plurality of limiting grooves 31 are arranged toward the accommodation space 101. Each limiting groove 31 may receive at least one sheet material in the accommodation space 101 at an end in the second horizontal direction to limit the movement of the sheet material.

[0032] It can be understood that the bearing rod 20 and the limiting rod 30 can limit the movement of the sheet material from the side in the vertical direction and the side in the second horizontal direction respectively, so as to reduce the probability of the sheet material falling due to the rotation of the bearing mechanism 100 after the sheet material is loaded on the bearing mechanism 100. The probability of the sheet material being damaged can be reduced.

[0033] Please also read Figure 4 For example, the bearing bar 20 can receive the sheet material from the bottom, and the limiting bar 30 can stop the sheet material from the end in the width direction of the sheet material. When the bearing bar 20 receives the sheet material, and the end of the sheet material is embedded in the corresponding limiting groove 31, the bearing bar 20 can limit the movement of the sheet material in the vertical direction, the first bottom wall 32 of the limiting groove 31 in the width direction of the limiting rod 30 can limit the movement of the sheet material in the second horizontal direction, and the two first side walls 33 of the limiting groove 31 in the length direction of the limiting rod 30 can limit the movement of the sheet material in the first horizontal direction.

[0034] It can be understood that each limiting groove 31 can be provided with a limiting rod 31 in the width direction of the limiting rod 31 and penetrate the limiting rod 31 in the height direction. In this way, the first bottom wall 31 of the limiting groove 31 in the width direction and the two first side walls 33 in the length direction cooperate to form the limiting groove 31.

[0035] In the embodiment of the present application, the limiting rod 30 is tilted. In the vertical direction, the end of the limiting rod 30 connected to the first connecting plate 11 is higher than the end connected to the second connecting plate 12. The length direction of the limiting rod 30 forms an angle α with the first horizontal direction, and the angle α is less than 90° and greater than 0°, that is, the angle α is an acute angle. The multiple sheet materials located in the accommodating space 101 can be arranged along the direction forming an angle α with the first horizontal direction.

[0036] It can be understood that the width of the limiting groove 31 in the length direction of the limiting rod 30 can be greater than the thickness of the sheet material. In some cases, each limiting groove 31 can accommodate the side portions of multiple sheet materials, and the multiple sheet materials corresponding to each limiting groove 31 can be placed in the supporting mechanism 100 in a state inclined to the vertical direction under the action of gravity and the guidance of the inclined limiting rod 30.

[0037] When the limiting rod 30 is tilted, the limiting groove 31 is tilted so that a sheet material received in the limiting groove 31 can be held against a first side wall 33 under the action of gravity, and other sheet materials received in the limiting groove 31 can be in contact with the sheet material.

[0038] For example, the width of the limiting groove 31 in the length direction of the limiting rod 30 may be greater than or equal to twice the thickness of the sheet material and less than three times the thickness of the sheet material.

[0039] In some embodiments, each limiting groove 31 is arranged to expand along the notch of the limiting rod 30 in a direction toward the accommodating space 101 .

[0040] The distance between the two first side walls 33 in each limiting groove 31 in the length direction of the limiting rod 30 is the groove width of the limiting groove 31. In this way, the groove width of the limiting groove 31 can gradually increase in the direction away from the first bottom wall 32.

[0041] It can be understood that the expansion of the slot opening of the limiting slot 31 can improve the convenience of the sheet material entering the limiting slot 31. In the embodiment of the present application, there is no specific limitation on the opening shape of the limiting slot 31. For example, at least one of the two first side walls 33 of the limiting slot 31 is an inclined surface, a curved surface or a stepped surface.

[0042] In some embodiments, a plurality of bearing grooves 21 are provided on the bearing bar 20. The plurality of bearing grooves 21 are arranged at intervals in the length direction of the bearing bar 20. Each bearing groove 21 can accommodate one end of at least one sheet material in the vertical direction, so as to cooperate with the limiting groove 31 to limit the movement of the sheet material.

[0043] Please also read Figure 5 For example, when the bearing rod 20 receives the sheet material from the bottom, the bottom end of the sheet material can be accommodated in the corresponding bearing groove 21, and the second bottom wall 22 of the bearing groove 21 in the height direction of the bearing rod 20 can limit the movement of the sheet material in the vertical direction, and the two second side walls 23 of the bearing groove 21 in the length direction of the bearing rod 20 can limit the movement of the sheet material in the first horizontal direction.

[0044] In the embodiment of the present application, the bearing bar 20 is tilted. In the vertical direction, the end of the bearing bar 20 connected to the first connecting plate 11 is higher than the end connected to the second connecting plate 12. That is, the length direction of the bearing bar 20 forms an angle β with the first horizontal direction, and the angle β is less than 90° and greater than 0°, that is, the angle β is an acute angle. Exemplarily, the angle β can be equal to the angle α.

[0045] It can be understood that the width of the bearing slot 21 in the length direction of the bearing rod 20 can be greater than the thickness of the sheet material. In some cases, each bearing slot 21 can accommodate the ends of multiple sheet materials, and the multiple sheet materials corresponding to each bearing slot 21 can be placed in the bearing mechanism 100 in a state inclined to the vertical direction under the action of gravity and the guidance of the inclined bearing rod 20.

[0046] When the bearing rod 20 is tilted, the bearing slot 21 is tilted so that a sheet material received in the bearing slot 21 can contact a second side wall 23 under the action of gravity, and other sheet materials received in the bearing slot 21 can contact the sheet material.

[0047] For example, the width of the bearing groove 21 in the length direction of the bearing rod 20 may be greater than or equal to twice the thickness of the sheet material and less than three times the thickness of the sheet material.

[0048] In some embodiments, the notch of each bearing slot 21 is expanded in a direction toward the accommodating space 101 .

[0049] The distance between the two second side walls 23 in each bearing groove 21 in the length direction of the bearing rod 20 is the groove width of the bearing groove 21. In this way, the groove width of the bearing groove 21 can gradually increase in the direction away from the second bottom wall 22.

[0050] It can be understood that the expansion of the slot opening of the bearing slot 21 can improve the convenience of the sheet material entering the bearing slot 21. In the embodiment of the present application, there is no specific limitation on the opening shape of the bearing slot 21. For example, at least one of the two second side walls 23 of the bearing slot 21 is an inclined surface, a curved surface or a stepped surface.

[0051] In the embodiments of the present application, there is no specific limitation on the number of the bearing rods 20 and the number of the limiting rods 30. Figure 1 As shown, there can be two load-bearing rods 20, which are spaced apart in the second horizontal direction. There can be two groups of limit rods 30, each group of limit rods 30 can include at least one limit rod 30; and the two groups of limit rods 30 are spaced apart in the second horizontal direction.

[0052] In the embodiment of the present application, the positional relationship between the bearing rod 20 and the limiting rod 30 in the second horizontal direction is not specifically limited. When a plurality of bearing rods 20 are arranged in the second horizontal direction, the spacing between two bearing rods 20 located on both sides of the plurality of bearing rods 20 in the second horizontal direction is less than the width of the sheet material in the second horizontal direction. The spacing between the two bearing rods 20 in the second horizontal direction is the linear distance between the two bearing rods 20 facing each other.

[0053] When two groups of limiting rods 30 are arranged at intervals in the second horizontal direction, the spacing in the second horizontal direction between the first bottom wall 32 in one group of limiting rods 30 and the corresponding first bottom wall 32 in the other group of limiting rods 30 is greater than or equal to the spacing in the second horizontal direction between the sheet material. The spacing in the second horizontal direction between the two groups of limiting rods 30 is less than the width of the sheet material in the second horizontal direction. The spacing in the second horizontal direction between the two groups of limiting rods 30 at the same height in the vertical direction is the straight-line distance on one side facing each other.

[0054] It can be understood that the sheet material can enter the accommodating space 101 from the upper side in the vertical direction, and stop moving after abutting against the second bottom wall 22 on the supporting rod 20, so that the sheet material enters the corresponding limiting groove 31 and the supporting groove 21, thereby realizing the installation and limiting of the sheet material in the supporting mechanism 100.

[0055] It can be understood that the limiting grooves 31 on each group of limiting rods 30 are opened on the side of the group of limiting rods 30 facing the other group of limiting rods 30. When there are multiple limiting rods 30 in one group of limiting rods 30, the multiple limiting rods 30 can be arranged at intervals in the first horizontal direction.

[0056] In the embodiments of the present application, there is no specific limitation on the fixing method during the fixed connection and fixed installation. For example, the fixing method may include, but is not limited to, screw fixing, bolt fixing, welding fixing, integral molding fixing, etc.

[0057] In some embodiments, the supporting mechanism 100 further includes two groups of lugs 40. One group of lugs 40 is fixedly connected to the side of the first connecting plate 11 away from the second connecting plate 12, and the other group of lugs 40 is fixedly connected to the side of the second connecting plate 12 away from the first connecting plate 11. There may be multiple lugs 40 in each group. In each group of lugs 40, at least two lugs 40 may be spaced apart in the vertical direction.

[0058] It can be understood that the automated handling device (not shown) can grasp the supporting mechanism 100 by grasping multiple boat ears or by engaging between multiple boat ears, and then the handling device can move the supporting mechanism 100 and the multiple sheet materials loaded by the supporting mechanism 100 to the processing equipment (not shown) so that the sheet materials can be processed or collected.

[0059] It can be understood that in each group of lugs 40, multiple lugs 40 can be arranged in the vertical direction to form multiple rows of lugs 40, and each row of lugs 40 can include multiple lugs 40 spaced apart in the second horizontal direction. In the embodiments of the present application, the number and distribution of each group of lugs 40 are not specifically limited. For example, Figure 1 As shown, the number of lugs 40 in each group of lugs 40 may be four, the four lugs 40 are arranged in two rows at intervals in the vertical direction, and each row of lugs 40 includes two lugs 40 arranged at intervals in the second horizontal direction.

[0060] For example, the handling device can grab a row of lugs 40 with a higher height in each group of lugs 40. When the handling device moves the carrying mechanism 100 to the processing equipment, the positioning grooves (not shown) provided in the processing equipment can accommodate a row of lugs 40 with a lower height in each group of lugs 40, so as to realize the positioning of the carrying mechanism 100 in the processing equipment.

[0061] In the embodiment of the present application, the shape of each lug 40 is not specifically limited. For example, the interface shape of each lug 40 can be, but is not limited to, circular, elliptical, waist-shaped or polygonal. Figure 1 As shown, the lug 40 may be cylindrical, that is, the cross section of the lug 40 is circular.

[0062] It can be understood that the peripheral wall of the cylindrical lug 40 is a curved surface. Thus, compared with the lug with a polygonal cross section and edges, the cylindrical lug 40 can reduce the probability of the lug 40 being damaged due to collision, and can reduce the probability that the lug 40 cannot be grasped by the handling device due to the defect, and can reduce the probability that the lug 40 shakes on the positioning groove or the handling device due to the defect, and can reduce the probability that the sheet material is damaged during the handling process.

[0063] In some embodiments, the vertical height of the first connecting plate 11 is greater than the vertical height of the second connecting plate 12. The bottom of the first connecting plate 11 is flush with the bottom of the second connecting plate 12, and the top of the first connecting plate 11 protrudes above the top of the second connecting plate 12.

[0064] The first connecting plate 11 may be provided with a marking groove 111. The marking groove 111 avoids the limiting rod 30, ie, the bearing rod 20 in the second horizontal direction and the vertical direction.

[0065] It can be understood that the end of the bearing rod 20 connected to the first connecting plate 11 is higher than the end connected to the second connecting plate 12, and the end of the limiting rod 30 connected to the first connecting plate 11 is higher than the end of the second connecting plate 12. In this way, when the bearing mechanism 100 carries a plurality of sheet materials, due to the inclined arrangement of the limiting rod 30 and the bearing rod 20, the position of the sheet material near the first connecting plate 11 in the bearing mechanism 100 is higher than the sheet material near the second connecting plate 12. In this way, the increase in the height of the first connecting plate 11 can strengthen the shielding of the sheet material from the first horizontal direction, strengthen the protection of the sheet material, and reduce the probability of damage to the sheet material.

[0066] For example, Figure 1 As shown, the marking groove 111 may be opened at the bottom end of the first connecting plate 11 and may penetrate the first connecting plate 11 in the first horizontal direction.

[0067] It is understandable that the marking groove 111 can reduce the weight of the first connecting plate 11 and can identify the first connecting plate 11. During the assembly of the carrying mechanism 100, the staff can determine whether the connecting plate is the first connecting plate 11 by whether the marking groove 111 is formed on the connecting plate.

[0068] Through the supporting mechanism 100 provided in the embodiment of the present application, the sheet material can enter the accommodating space 101 from the upper part in the vertical direction, so that the two ends of the sheet material in the second horizontal direction enter the limiting grooves 31 on the two groups of limiting rods 30, and stop moving after the bottom end of the sheet material enters the supporting groove 21 on the supporting rod 20, so that the sheet material enters the corresponding limiting grooves 31 and the supporting groove 21, thereby realizing the installation and limitation of the sheet material in the supporting mechanism 100.

[0069] The limiting rod 30 limits the movement of the sheet material from both sides in the second horizontal direction, the bearing rod 20 can limit the movement of the sheet material from one side in the vertical direction, and the two first side walls 33 of the limiting groove 31 and the two second side walls 23 of the bearing groove 21 can limit the movement of the sheet material from both sides in the first horizontal direction. In this way, when the bearing mechanism 100 is flipped by the automated handling equipment, compared with the prior art in which the sheet material is limited by two layers of groove rods, the bearing mechanism 100 provided by the present application strengthens the isolation and protection of the sheet material installed in the bearing mechanism 100, which can reduce the probability of the sheet material escaping from the bearing mechanism 100 during the flipping process of the bearing mechanism 100, and reduce the probability of the sheet material being damaged.

[0070] It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and that the present application can be implemented in other specific forms without departing from the spirit or basic features of the present application. Therefore, no matter from which point of view, the above embodiments of the present application should be regarded as exemplary and non-restrictive, and the scope of the present application is defined by the attached claims rather than the above description, and therefore it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present application.

Claims

1. A carrying mechanism for carrying a plurality of sheet materials, characterized in that: The carrying mechanism comprises: Two connecting plates, the two connecting plates are spaced apart along a first horizontal direction; A bearing rod, both ends of which are connected to the two connecting plates respectively, and the bearing rod is used to stop the end of the sheet material in the vertical direction; A limiting rod, wherein the limiting rod and the bearing rod are spaced apart in the vertical direction, the limiting rod and the bearing rod are combined to form a receiving space for receiving the sheet material, the length direction of the limiting rod is arranged at an acute angle with the first horizontal direction, a plurality of limiting grooves are provided on the limiting rod, and the notches of the limiting grooves are arranged toward the receiving space to receive the end of the sheet material located in the receiving space; Two groups of lugs are respectively arranged on the two connecting plates, and each group of lugs is located on a side of the corresponding connecting plate away from the accommodating space, and at least two lugs in each group of lugs are arranged at intervals in the vertical direction; The first horizontal direction, the second horizontal direction and the vertical direction are perpendicular to each other.

2. The supporting mechanism according to claim 1, characterized in that: A plurality of bearing grooves are formed on the bearing rod, and the groove openings of the plurality of bearing grooves are arranged toward the accommodating space to accommodate the end portions of the sheet material in the accommodating space.

3. The supporting mechanism according to claim 1, characterized in that: The length direction of the bearing bar is arranged at an acute angle with the first horizontal direction.

4. The supporting mechanism according to claim 2, characterized in that: The notch of the bearing slot is expanded in a direction toward the accommodating space.

5. The supporting mechanism according to claim 1, characterized in that: There are multiple bearing bars, and the multiple bearing bars are arranged at intervals in the second horizontal direction.

6. The supporting mechanism according to claim 1, characterized in that: The notch of the limiting groove is expanded in a direction toward the accommodating space.

7. The supporting mechanism according to claim 1, characterized in that: The number of the limiting rods is two groups, the number of the limiting rods in each group is at least one, and the two groups of limiting rods are arranged at intervals in the second horizontal direction.

8. The supporting mechanism according to claim 1, characterized in that: The cross-section of the lugs is circular, waist-shaped, elliptical or polygonal, and at least two lugs in each group of the lugs are spaced apart in the second horizontal direction.

9. The supporting mechanism according to claim 1, characterized in that: The two connecting plates include a first connecting plate and a second connecting plate. In the vertical direction, the height of the first connecting plate is greater than the height of the second connecting plate. The end of the limiting rod connected to the first connecting plate is higher than the end connected to the second connecting plate.

10. The supporting mechanism according to claim 9, characterized in that: The first connecting plate is provided with a marking groove, and the marking groove avoids the limiting rod and the bearing rod in the second horizontal direction, and avoids the limiting rod and the bearing rod in the vertical direction.

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