Positioning clamp

By restricting the movement of the boat's components with positioning clamps, the problem of misalignment during boat rotation was solved, enabling more efficient slurry coating and a more stable sintering process.

CN223589275UActive Publication Date: 2025-11-25JIAGENG (JIANGSU) SPECIAL MATERIALS CO LTD
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Patent Information

Application Number
CN202520227882.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-12
Publication Date
2025-11-25
Estimated Expiration
2035-02-12

AI Technical Summary

Technical Problem

In the production process of photovoltaic and semiconductor products, the various components of the boat are prone to movement during the flipping process, resulting in the shape after sintering not conforming to the design.

Method used

A positioning fixture is provided, including a base, a receiving component, and a side frame, which restricts the movement of the boat's components by positioning and clamping the slotted bar assembly, ensuring relative fixation during slurry application.

Benefits of technology

It improves the ease of coating the slurry, reduces the probability of the boat's components deviating from the preset position and angle during the flipping process, and reduces the risk of the sintered shape not conforming to the design.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a positioning clamp which is used for limiting movement of all parts of a boat, the boat comprises two end plates, a first groove rod set and a second groove rod set, the two end plates are arranged at intervals in the first horizontal direction, the first groove rod set comprises a plurality of first groove rods, the second groove rod set comprises a plurality of second groove rods, and the positioning clamp comprises a base which comprises a base part and a bearing part, the bearing part is arranged on the base part, a first bearing groove is formed in the bearing part, and the first bearing groove is used for bearing the first groove rod; the bearing assembly comprises a supporting frame and a bearing frame, the supporting frame is detachably connected to the base part, the bearing frame is arranged on the supporting frame, and the bearing frame and the base are arranged in a spaced mode in the vertical direction; a second bearing groove is formed in the bearing frame and is used for bearing a second groove rod; and the two side frames are detachably connected to the base part and are arranged in a spaced mode in the first horizontal direction, and each side frame is used for being connected with the face, away from the other end plate, of the corresponding end plate in an abutting mode so as to clamp the boat.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of product assembly, and in particular to a positioning clamp. BACKGROUND

[0002] A boat is a carrier that can carry multiple sheet materials in the process of producing photovoltaic and semiconductor products. The boat can include two oppositely arranged end plates, multiple support rods connected between the two end plates, and boat ears located on both sides of the boat. Each component of the boat needs to be manufactured separately and then assembled and sintered, so that each component of the boat is fixed with the adjacent fastener.

[0003] After the assembly of each component of the boat is completed, the worker needs to apply paste to the position where each component is connected, and then sinter the boat. The paste hardens during the sintering process due to high temperature, so that each component of the sintered boat remains relatively fixed. During the process of applying paste, the worker needs to turn over the unsintered boat, and each component of the boat is easy to move during the turning process, resulting in a shape of the sintered boat that does not match the design. CONTENT OF THE UTILITY MODEL

[0004] In view of the above, it is necessary to provide a positioning clamp to solve the above-mentioned defects.

[0005] The embodiment of the present application provides a positioning clamp for limiting the movement of each component of a boat. The boat includes two end plates, a first slot rod group and a second slot rod group. The two end plates are arranged at intervals in a first horizontal direction. The first slot rod group and the second slot rod group are arranged at intervals in a vertical direction. The first slot rod group includes multiple first slot rods arranged at intervals in a second horizontal direction. The second slot rod group includes multiple second slot rods arranged at intervals in the second horizontal direction. Both ends of each first slot rod are connected to the two end plates, respectively. Both ends of each second slot rod are connected to the two end plates, respectively. The first horizontal direction, the second horizontal direction and the vertical direction are perpendicular. The positioning clamp includes: a base, the base including a base portion and a receiving portion, the receiving portion being arranged on the base portion, multiple first receiving grooves being arranged on the receiving portion, each first receiving groove being used for carrying a corresponding first slot rod; at least one receiving assembly, the receiving assembly including a support frame and a receiving frame, the support frame being detachably connected to the base portion, the receiving frame being arranged on the support frame, the receiving frame being arranged at intervals with the base in the vertical direction; in the at least one receiving assembly, a second receiving groove is arranged on the receiving frame, the second receiving groove being used for carrying a second slot rod; and two side frames, the two side frames being detachably connected to the base portion and arranged at intervals in the first horizontal direction, each side frame being used for abutting against a side of a corresponding end plate away from the other end plate to clamp the boat.

[0006] Optionally, the positioning clamp further comprises a plurality of first clamping blocks, each of the plurality of first clamping blocks being detachably connected to the receiving portion, a first receiving groove being formed on a side of each of the first clamping blocks facing the receiving portion, each of the first receiving grooves being in communication with a corresponding first receiving slot, and each of the first receiving grooves being configured to partially receive a corresponding first slot bar.

[0007] Optionally, a first avoiding groove is formed on an inner wall of each of the first receiving grooves, the inner wall of each of the first receiving grooves being capable of abutting against the first slot bar and avoiding the teeth of the first slot bar, the first avoiding groove being configured to receive the teeth of the first slot bar, and a gap being formed between the inner wall of the first avoiding groove and the teeth of the first slot bar when the first avoiding groove receives the teeth of the first slot bar.

[0008] Optionally, the positioning clamp further comprises a plurality of second clamping blocks, each of the second clamping blocks being detachably connected to a corresponding receiving frame, a second receiving groove being formed on a side of each of the second clamping blocks facing the corresponding receiving frame, each of the second receiving grooves being in communication with a corresponding second receiving slot, and at least some of the second receiving grooves being configured to partially receive a corresponding second slot bar.

[0009] Optionally, a second avoiding groove is formed on an inner wall of each of the at least some of the second receiving grooves, the inner wall of each of the at least some of the second receiving grooves being capable of abutting against the corresponding second slot bar and avoiding the teeth of the second slot bar, the second avoiding groove being configured to receive the teeth of the corresponding second slot bar, and a gap being formed between the inner wall of the second avoiding groove and the teeth of the corresponding second slot bar when the second avoiding groove receives the teeth of the corresponding second slot bar.

[0010] Optionally, each of the side frames is provided with a first positioning groove on a side of the side frame facing another side frame, and each of the first positioning grooves is configured to receive a corresponding end plate.

[0011] Optionally, the positioning clamp further comprises a plurality of clamping plates, each of the clamping plates being detachably connected to a corresponding side frame, and at least one of the clamping plates being configured to, in cooperation with the corresponding side frame, clamp the end plate in a first horizontal direction and in a vertical direction.

[0012] Optionally, the boat further comprises a plurality of lugs, each of the end plates being provided with at least one lug on a side of the end plate facing away from another end plate, and the positioning clamp further comprises two receiving seats, each of the two receiving seats being provided on a corresponding side frame facing away from another side frame, and each of the receiving seats being provided with a third receiving slot, the third receiving slot being configured to receive a corresponding lug.

[0013] Optionally, the positioning clamp further comprises two positioning members, each of the two positioning members being detachably connected to a corresponding receiving seat, each of the positioning members being provided with a third receiving groove on a side of the positioning member facing the corresponding receiving seat, and each of the third receiving grooves being configured to partially receive a corresponding lug.

[0014] Optionally, the boat also includes a third grooved bar group, which is located vertically on the side of the second grooved bar group away from the first grooved bar group. The third grooved bar group includes a plurality of third grooved bars spaced apart along a second horizontal direction, and each third grooved bar is connected to two end plates at both ends. The number of receiving components is at least two, wherein the support frames of the two receiving components are arranged adjacently in the second horizontal direction, and the receiving frames of the two receiving components are spaced apart in the vertical direction. The receiving frames of the two receiving components are used to receive the second grooved bar group and the third grooved bar group, respectively. On each receiving frame, two rows of second receiving grooves are arranged in the second horizontal direction, and each row of second receiving grooves is used to receive at least a portion of the structure of the corresponding second grooved bar or third grooved bar.

[0015] The positioning fixture provided in this application allows the various components of the boat to be sequentially mounted on it. The fixture restricts the relative movement between the components and between the components and the fixture itself. When applying slurry to the connection points of the boat's components, the operator can simultaneously rotate the components by flipping the positioning fixture, keeping them relatively fixed to the assembly, so that the areas requiring slurry application face the operator. This improves the ease of slurry application, reduces the probability of the boat's components deviating from their preset positions and angles during rotation, and lowers the probability of the boat's sintered shape deviating from the design. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the positioning fixture and boat in the embodiments of this application.

[0017] Figure 2 This is a schematic diagram of the structure of the boat in the embodiments of this application.

[0018] Figure 3 This is a side view of the boat in an embodiment of this application.

[0019] Figure 4 This is a schematic diagram of the positioning fixture in the embodiments of this application.

[0020] Figure 5 This is a schematic diagram of the base structure in an embodiment of this application.

[0021] Figure 6 yes Figure 4 Enlarged view of section VI.

[0022] Figure 7 yes Figure 4 Enlarged view of section VII.

[0023] Figure 8 This is a schematic diagram of the side frame structure in an embodiment of this application.

[0024] Explanation of key component symbols:

[0025] 100. Positioning clamp; 10. Base; 11. Base bottom; 12. Receiving part; 121. First receiving groove; 20. Receiving assembly; 21. Support frame; 22. Receiving frame; 221. Second receiving groove; 222. Support groove; 30. Side frame; 31. First positioning groove; 32. Second positioning groove; 40. First clamping block; 41. First receiving groove; 42. First clearance groove; 50. Second clamping block; 51. Second receiving groove; 52. Second clearance groove; 60. Clamping plate; 70. Receiving seat; 71. Third receiving groove; 80. Positioning component; 81. Third receiving groove; 200. Boat; 201. End plate; 202. Lug; 203. First grooved bar; 204. Second grooved bar; 205. Groove tooth; 206. Third grooved bar; 207. Support column. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments.

[0027] The term "multiple" in this application refers to two or more. Furthermore, it should be understood that the terms "first," "second," etc., used in the description of this application are used only for descriptive purposes and should not be construed as indicating or implying relative importance, nor as indicating or implying order.

[0028] In the description of the embodiments in this application, the words "exemplary" or "for example" are used to indicate that they are examples, illustrations, or descriptions. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design options. Specifically, the use of the words "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0029] Please see Figure 1 and Figure 2 , Figure 1 An embodiment of this application illustrates a positioning clamp 100 that can clamp and fix the unassembled components of the boat 200. Figure 2 An embodiment of the present application provides a boat 200.

[0030] In embodiments of this application, the boat 200 may include two end plates 201, a first grooved bar group, a second grooved bar group, and a plurality of lugs 202. The two end plates 201 may be spaced apart in a first horizontal direction. The first grooved bar group and the second grooved bar group are spaced apart in a vertical direction. The first grooved bar group includes a plurality of first grooved bars 203, which are spaced apart in a second horizontal direction. Each first grooved bar 203 is connected to both ends of the two end plates 201 in the first horizontal direction. The second grooved bar group includes a plurality of second grooved bars 204, which are arranged in the second horizontal direction. Each second grooved bar 204 is connected to both ends of the two end plates 201 in the first horizontal direction. Of the plurality of lugs 202, some lugs 202 are connected to one end plate 201, and the remaining lugs 202 are connected to the other end plate 201. Each lug 202 is located on the side of the corresponding end plate 201 facing away from the other end plate 201.

[0031] It is understandable that the length direction of the positioning fixture 100 and the boat 200 can be defined as the first horizontal direction, the width direction as the second horizontal direction, and the height direction as the vertical direction. For example, the first horizontal direction could be... Figure 1 and Figure 2 The X direction and its opposite direction are shown. The second horizontal direction can be... Figure 1 and Figure 2 The Y-direction and its opposite direction are shown; the vertical direction can be... Figure 1 and Figure 2 The Z direction and its opposite direction are shown.

[0032] In the embodiments of this application, the number of the first slotted rod 203 and the second slotted rod 204 is not specifically limited. For example, there may be two first slotted rods 203 and two second slotted rods 204.

[0033] In the embodiments of this application, the number of lugs 202 is not specifically limited. For example, each end plate 201 is connected to two lugs 202, and the two lugs 202 are spaced apart in the second horizontal direction.

[0034] It is understood that the two end plates 201, multiple first grooved rods 203, multiple second grooved rods 204, and multiple lugs 202 can be placed in the positioning fixture 100 in a preset order for assembly. The positioning fixture 100 can keep the two end plates 201, multiple first grooved rods 203, multiple second grooved rods 204, and multiple lugs 202 relatively fixed. Then, the operator can apply slurry to the connection points of the two end plates 201, multiple first grooved rods 203, multiple second grooved rods 204, and multiple lugs 202, and heat the positioning fixture 100 and the assembled boat 200 to dry the slurry, so that the two end plates 201, multiple first grooved rods 203, multiple second grooved rods 204, and multiple lugs 202 can remain relatively fixed. Then, the workers can disassemble the positioning fixture 100 and sinter the boat 200 after the slurry has been dried to increase the stability of the connection between the two end plates 201, multiple first grooved bars 203, multiple second grooved bars 204 and multiple lugs 202, thus completing the production of the boat 200.

[0035] It is understood that each first slotted bar 203 and each second slotted bar 204 can first be positioned on one end plate 201, and then the positioning fixture 100 receives the first slotted bar 203 or the second slotted bar 204, which is then positioned on the other end plate 201, thereby achieving the connection between the first slotted bar 203 or the second slotted bar 204 and the two end plates 201 through the positioning fixture 100. In the embodiments of this application, the method of positioning the first slotted bar 203 and the second slotted bar 204 on the end plate 201 is not specifically limited. For example, both the first slotted bar 203 and the second slotted bar 204 can be positioned on the end plate 201 by means of a pin (not shown). A pin can be inserted into the end plate 201 at the position for connecting the first slotted rod 203 and the second slotted rod 204, and the pin part protrudes from the end plate 201 towards the other end plate 201 along the first horizontal direction; the two ends of the first slotted rod 203 or the second slotted rod 204 can be provided with insertion holes (not shown in the figure), and the part of the pin protruding from the end plate 201 can be inserted into the insertion hole at the end of the first slotted rod 203 or the second slotted rod 204 to realize the positioning of the first slotted rod 203 or the second slotted rod 204 on the two end plates 201.

[0036] Please refer to the following: Figure 3 In the embodiments of this application, each first grooved bar 203 and each second grooved bar 204 is inclined. The extending direction of each first grooved bar 203 and each second grooved bar 204 forms an acute angle α with the first horizontal direction. The first horizontal direction may have a first side and a second side arranged opposite to each other. For example... Figure 3As shown, the first side is the side where mark A is located, and the second side is the side where mark B is located. In the first horizontal direction, the height of the first side of each first slotted bar 203 in the vertical direction can be greater than the height of the second side in the vertical direction, and the height of the first side of each second slotted bar 204 in the vertical direction can be greater than the height of the second side in the vertical direction. Of the two end plates 201, the height of the end plate 201 located on the first side in the first horizontal direction is greater than the height of the end plate 201 located on the second side, and the bottom ends of the two end plates 201 are level in the vertical direction.

[0037] It is understood that multiple slots can be formed on each first slot bar 203 and each second slot bar 204. The slots can be located at the top and / or bottom of the corresponding first slot bar 203 or second slot bar 204 in the vertical direction. On each first slot bar 203 and each second slot bar 204, multiple slots can be spaced apart along the extension direction of the first slot bar 203 or second slot bar 204. A tooth 205 can be formed between every two adjacent slots, so that the first slot bar 203 and second slot bar 204 are arranged with multiple teeth 205. Each slot can accommodate a sheet material on one side in the vertical direction. The inclined arrangement of the first slot bar 203 and second slot bar 204 can make the tooth 205 form an acute angle with the vertical direction, and keep the sheet material inserted into the slot inclined, so as to increase the contact area between the sheet material and the inner wall of the slot, increase the friction between the sheet material and the inner wall of the slot, and thus reduce the probability of the sheet material falling out of the slot during the movement of the boat 200.

[0038] In the embodiments of this application, the specific angle α is not specifically limited. For example, the angle α is 2°.

[0039] In the embodiments of this application, the type of sheet material is not specifically limited. For example, the sheet material may be, but is not limited to, silicon wafers, silicon carbide wafers, or wafers.

[0040] Please refer to the following: Figure 4 and Figure 5In some embodiments, the positioning clamp 100 may include a base 10, a receiving assembly 20, and a side frame 30. The base 10 may be placed horizontally and may include a base 11 and a receiving portion 12. The receiving portion 12 is detachably connected to the top of the base 11 and is located in the middle of the base 11 in a first horizontal direction. The receiving portion 12 has multiple rows of first receiving grooves 121, which are spaced apart in a second horizontal direction. The first receiving grooves 121 penetrate the receiving portion 12 along the extending direction of the first groove bar 203 and penetrate the top of the receiving portion 12. The first receiving grooves 121 may receive the first groove bar 203, and each row of first receiving grooves 121 may correspond to one first groove bar 203. Each first receiving groove 121 may receive at least a portion of the structure of the corresponding first groove bar 203 to receive the corresponding first groove bar 203.

[0041] The number of receiving components 20 is at least one. Each receiving component 20 may include two support frames 21 and one receiving frame 22. The two support frames 21 may be spaced apart in the second horizontal direction and are both detachably connected to the base 11. The receiving frame 22 may be fixedly mounted on the top of the two support frames 21. The base 10 and the receiving frame 22 in each receiving component 20 are spaced apart in the vertical direction. When there are multiple receiving components 20, the height of the support frame 21 of each receiving component 20 is not equal to the height of the support frame 21 of the other receiving components 20; the receiving frame 22 of each receiving component 20 is spaced apart in the vertical direction from the receiving frame 22 of the other receiving components 20. Multiple rows of second receiving grooves 221 may be formed on the receiving frame 22, and the multiple rows of second receiving grooves 221 are spaced apart in the second horizontal direction.

[0042] At least one receiving component 20 is correspondingly disposed with the second slotted bar group. In the receiving component 20, the second receiving groove 221 penetrates the receiving frame 22 along the extending direction of the second slotted bar 204 and penetrates the top of the receiving frame 22. The second receiving groove 221 of the receiving component 20 can accommodate the second slotted bar 204. In the receiving component 20 corresponding to the second slotted bar group, each row of second receiving grooves 221 can correspond to a corresponding second slotted bar 204, and each second receiving groove 221 can accommodate at least a portion of the structure of the corresponding second slotted bar 204.

[0043] There can be two side frames 30, which are spaced apart in the first horizontal direction. Both side frames 30 are detachably connected to the base 11. Each side frame 30 corresponds to one end plate 201, and the side of each side frame 30 facing the other side frame 30 abuts against the corresponding end plate 201. When each first slotted bar 203 and each second slotted bar 204 is positioned on the two end plates 201, the two side frames 30 can clamp multiple first slotted bars 203, multiple second slotted bars 204, and two end plates 201 in the first horizontal direction.

[0044] In the embodiments of this application, the fixing method during fixed connection and fixed installation is not specifically limited. For example, the fixing method may be, but is not limited to, bolt fixing, welding fixing, or integral molding fixing.

[0045] In the embodiments of this application, the specific connection method for detachable connection is not limited. For example, the detachable connection method can be, but is not limited to, bolt connection, threaded connection, snap-fit ​​connection or adhesive connection, etc.

[0046] It is understood that the top surface of the base 11 can be horizontal. The two side frames 30 can be vertical. The surfaces of the two side frames 30 that abut against the end plates 201 can be parallel to each other. The surfaces of the two side frames 30 that abut against the end plates 201 can be perpendicular to the top surface of the base 11. The bottom ends of the two end plates 201 abut against the top surface of the base 11, so that the bottom ends of the two end plates 201 remain horizontal in the vertical direction. At the same time, the two end plates 201 can remain vertical and parallel to each other by abutting against the corresponding side frames 30.

[0047] The extension direction of the first receiving groove 121 can be the same as the extension direction of the first grooved bar 203, that is, it is set at an angle α with the first horizontal direction. In the receiving assembly 20 corresponding to the second grooved bar group, the extension direction of the second receiving groove 221 can be the same as the extension direction of the corresponding second grooved bar 204, that is, it is set at an angle α with the first horizontal direction.

[0048] Thus, the two side frames 30, in conjunction with the base 10, ensure that the two end plates 201, which are of unequal height, remain upright and that their bottoms are level. The first receiving groove 121 allows the first grooved rod 203 to remain tilted, and the second receiving groove 221, corresponding to the second grooved rod group, allows the second grooved rod 204 to remain tilted. Through the cooperation of the base 10, the receiving assembly 20, and the side frames 30, the positions of each end plate 201, each first grooved rod 203, and each second grooved rod 204 are the same as the preset positions corresponding to those in the design process of the boat 200, and the placement angles of each end plate 201, each first grooved rod 203, and each second grooved rod 204 are the same as those corresponding to those in the design process of the boat 200.

[0049] It is understood that the first receiving groove 121 accommodates the first grooved rod 203, allowing the base 10 to receive the first grooved rod assembly from the bottom; the inner wall of each first receiving groove 121 can accommodate the corresponding first grooved rod 203 in the second horizontal direction. The corresponding second receiving groove 22 accommodates the second grooved rod 204, allowing the corresponding receiving frame 22 to receive the second grooved rod assembly from the bottom; the inner wall of the second receiving groove 221 corresponding to the second grooved rod assembly can block the second grooved rod 204 in the second horizontal direction. The two side frames 30 can restrict the movement of the two end plates 201, the multiple first grooved rods 203, and the multiple second grooved rods 204 in the first horizontal direction.

[0050] Thus, the positioning fixture 100 can restrict the movement of the two end plates 201, the multiple first grooved rods 203, and the multiple second grooved rods 204. When the operator applies slurry at the connection points between the end plates 201 and the first grooved rods 203 and second grooved rods 204, while keeping the two end plates 201, the multiple first grooved rods 203, and the multiple second grooved rods 204 relatively fixed, the operator can simultaneously rotate the two end plates 201, the multiple first grooved rods 203, and the multiple second grooved rods 204 by flipping the positioning fixture 100. This improves the convenience of slurry application for the operator, reduces the probability that the end plates 201, the multiple first grooved rods 203, and the multiple second grooved rods 204 will deviate from the preset position and placement angle during the rotation process, and reduces the probability that the shape of the boat 200 after sintering will not conform to the design.

[0051] In the embodiments of this application, the number of receiving components 20 is not specifically limited. When the number of receiving components 20 is greater than or equal to two, one of the receiving components 20 can support the second groove bar group, and the remaining receiving components 20 can support other parts of the boat 200.

[0052] For example, boat 200 may also include a third grooved bar group. The third grooved bar group is spaced apart from the second grooved bar group in the vertical direction and is located on the side of the second grooved bar group that is vertically opposite to the first grooved bar group. The third grooved bar group may include multiple third grooved bars 206, which may be spaced apart in the second horizontal direction. For example, the number of third grooved bars 206 in the third grooved bar group is two.

[0053] The number of receiving components 20 can be at least two. In the two receiving components 20, the receiving frame 22 of the first receiving component 20 can be located vertically between the receiving part 12 and the receiving frame 22 of the second receiving component 20. The height of the support frame 21 of the first receiving component 20 is lower than the height of the support frame 21 of the second receiving component 20. The two support frames 21 of the first receiving component 20 are located horizontally between the two support frames 21 of the second receiving component 20. Each receiving frame 22 has two rows of second receiving grooves 221, and the number of second receiving grooves 221 in each row can be two. On the first receiving frame 22, each row of second receiving grooves 221 can accommodate a portion of the structure of a corresponding second groove bar 204, so that the two rows of second receiving grooves 221 can accommodate a portion of the structure of the second groove bar assembly. On the second receiving frame 22, each row of second receiving slots 221 can accommodate a portion of the structure of a corresponding third slot bar 206, so that the two rows of second receiving slots 221 can accommodate a portion of the structure of the third slot bar group.

[0054] The first receiving groove 121 can be provided in two rows, and the number of first receiving grooves 121 in each row can be two. Each row of first receiving grooves 121 can accommodate a part of the structure of a corresponding first groove bar 203, so that the two rows of first receiving grooves 121 can accommodate a part of the structure of the first groove bar group.

[0055] It can be understood that the boat 200 may include a first group of slotted bars to the Nth group of slotted bars arranged from low to high according to their height, and each group of slotted bars may include multiple slotted bars spaced apart in the second horizontal direction. Here, N is an integer greater than 1. The number of receiving components 20 can be N-1, and the multiple receiving components 20 can be arranged sequentially from low to high according to the height of the corresponding receiving frame 22, from the first receiving component 20 to the (N-1)th receiving component 20. Among the N-1 receiving components 20, the (M-1)th receiving component 20 can correspond to the Mth group of slotted bars, that is, the (M-1)th receiving component can receive the corresponding Mth group of slotted bars. Here, M is an integer greater than 1 and less than or equal to N.

[0056] Workers can adjust the number of receiving components 20 in the positioning fixture 100 according to the preset structure of the boat 200, so that each slotted bar group can be received by the positioning fixture 100. At the same time, the extension direction of the slotted bars in each slotted bar group can be the same, that is, they can all be set at an acute angle α with the first horizontal direction; the positioning method of each slotted bar on the two end plates 201 can be the same or similar, and the specific method can be referred to the positioning method of the first slotted bar 203 on the two end plates 201 described above, which will not be repeated here.

[0057] Please refer to the following: Figure 6 In some embodiments, the positioning clamp 100 may further include a plurality of first clamping blocks 40. The number of first clamping blocks 40 is the same as the number of first receiving grooves 121, and the plurality of first clamping blocks 40 correspond one-to-one with the plurality of first receiving grooves 121. The plurality of first clamping blocks 40 are detachably connected to the top of the receiving portion 12.

[0058] Each first clamping block 40 has a first receiving groove 41 vertically facing the receiving portion 12. Each first receiving groove 41 can communicate with a corresponding first receiving groove 121. Each first receiving groove 41 can accommodate a portion of the structure of the corresponding first grooved rod 203, so that the corresponding first clamping block 40 covers the corresponding first grooved rod 203 from the top. The inner wall of the first receiving groove 41 can cooperate with the inner wall of the first receiving groove 121 to shield the first grooved rod 203 in any direction perpendicular to the first horizontal direction, so as to enhance the protection of the first grooved rod 203 and keep the first grooved rod 203 relatively fixed to the positioning clamp 100.

[0059] In the first slotted bar assembly, a slot can be formed on the top of the first slotted bar 203, and the slotted teeth 205 of the first slotted bar 203 can be received within a first receiving groove 41. The inner walls of the first receiving groove 41 located on both sides in the second horizontal direction can abut against the first slotted bar 203 to restrict its movement. Simultaneously, a first clearance groove 42 can be formed on the inner wall of the first receiving groove 41 located at the top in the vertical direction. The first clearance groove 42 communicates with the first receiving groove 41 and corresponds to the slotted teeth 205 of the first slotted bar 203. The inner wall of the first clearance groove 42 can receive the slotted teeth 205 of the first slotted bar 203, and a gap exists between the inner wall of the first clearance groove 42 and the slotted teeth 205 of the first slotted bar 203 to allow the slotted teeth 205 to pass.

[0060] It is understood that the inner wall of the first receiving groove 121 abuts against the first grooved rod 203, and the inner wall of the corresponding first receiving groove 41 abuts against the first grooved rod 203, so that the first clamping block 40 and the receiving part 12 can clamp the first grooved rod 203, thereby restricting the movement of the first grooved rod 203 in any direction perpendicular to the first horizontal direction, and strengthening the relative fixation between the first grooved rod 203 and the positioning clamp 100.

[0061] It is understood that each first slotted bar 203 can be positioned with the two end plates 201 after the slot is opened, and is supported on the positioning fixture 100, so as to avoid interference processing between the end plates 201 and other slotted bars (such as the second slotted bar 204 and the third slotted bar 206) when the slot is opened after the boat 200 has been sintered. Similarly, each second slotted bar 204 and each third slotted bar 206 can be positioned with the two end plates 201 after the slot is opened, and is supported on the positioning fixture 100.

[0062] The inner walls of the first receiving groove 41 and the first receiving groove 121 can cooperate to clamp the corresponding first grooved bar 203. The opening of the first clearance groove 42 allows the first clamping block 40 to avoid the groove teeth 205 on the first grooved bar 203, thus preventing the first clamping block 40 from colliding with the groove teeth 205 and causing damage to the groove teeth 205.

[0063] Please refer to the following: Figure 7 In some embodiments, the positioning clamp 100 may further include a plurality of second clamping blocks 50. The number of second clamping blocks 50 is the same as the number of second receiving slots 221, and the plurality of second clamping blocks 50 correspond one-to-one with the plurality of second receiving slots 221. The plurality of second clamping blocks 50 are detachably connected to the top of the corresponding receiving frame 22.

[0064] Each second clamping block 50 has a second receiving groove 51 vertically facing the receiving portion 12. Each second receiving groove 51 can communicate with a corresponding second receiving groove 221. Each second receiving groove 51 can accommodate a portion of the structure of the corresponding second grooved rod 204 or third grooved rod 206, so that the corresponding second clamping block 50 covers the corresponding second grooved rod 204 or third grooved rod 206 from the top. The inner wall of the second receiving groove 51 can cooperate with the inner wall of the second receiving groove 221 to block the corresponding second grooved rod 204 or third grooved rod 206 in any direction perpendicular to the second horizontal direction, so as to enhance the protection of the second grooved rod 204 and third grooved rod 206 and keep the second grooved rod 204 and third grooved rod 206 relatively fixed with the positioning clamp 100.

[0065] It is understood that the inner wall of the second receiving groove 221 abuts against the corresponding second groove bar 204 or third groove bar 206, and the inner wall of the corresponding second receiving groove 51 abuts against the second groove bar 204 or third groove bar 206, so that the second clamping block 50 and the corresponding receiving frame 22 can clamp the corresponding second groove bar 204 or third groove bar 206, so as to restrict the movement of the corresponding second groove bar 204 or third groove bar 206 in any direction perpendicular to the first horizontal direction, so that the second groove bar 204 and the positioning clamp 100 are kept relatively fixed, and the third groove bar 206 and the positioning clamp 100 are kept relatively fixed.

[0066] Thus, with the cooperation of the first clamping block 40, the base 10, the second clamping block 50 and the receiving component 20, the positioning clamp 100 can clamp multiple slotted bars (such as the first slotted bar 203, the second slotted bar 204 and the third slotted bar 206), thereby maintaining the relative fixation of the multiple slotted bars with the positioning clamp 100, as well as the relative fixation between the multiple slotted bars and other parts of the boat 200.

[0067] In some embodiments, at least a portion of the inner wall at the top of the second receiving groove 221 is provided with a second clearance groove 52, which can avoid the groove teeth 205 of the second groove bar 204 or the groove teeth 205 of the third groove bar 206.

[0068] When the boat 200 includes a first group of slotted bars to a Nth group of slotted bars arranged from low to high according to their height, in the second group of slotted bars to the Nth group of slotted bars, slots can be opened at the top and / or bottom of the corresponding slotted bars.

[0069] When the bottom of the second grooved bar 204 is provided with a slot, the inner wall of the corresponding second receiving groove 221 located at the bottom is spaced apart from the second grooved bar 204 in the vertical direction, and the inner walls located on both sides in the second horizontal direction abut against the second grooved bar 204, so that the inner wall of the corresponding second receiving groove 221 can avoid the groove teeth 205 of the second grooved bar 204.

[0070] When slots are provided at the top of the second grooved rod 204 and the third grooved rod 206, the inner walls of the corresponding second receiving groove 51 located on both sides in the second horizontal direction can abut against the corresponding second grooved rod 204 or the third grooved rod 206 to restrict the movement of the second grooved rod 204 and the third grooved rod 206. At the same time, a second clearance groove 52 can be provided on the inner wall of the second receiving groove 51 located at the top in the vertical direction. The second clearance groove 52 communicates with the second receiving groove 51 and is correspondingly provided with the slot teeth 205 of the second grooved rod 204 or the slot teeth 205 of the third grooved rod 206. The second clearance groove 52 can accommodate the slot teeth 205 of the corresponding second grooved rod 204 or the corresponding third grooved rod 206. At the same time, there is a gap between the inner wall of the second clearance groove 52 and the corresponding slot teeth 205 to avoid the corresponding slot teeth 205.

[0071] For example, in the third grooved bar group, the bottom of the third grooved bar 206 can be provided with slots, that is, the groove teeth 205 of the third grooved bar 206 are located at the bottom of the third grooved bar 206. In the second receiving groove 221 corresponding to the third grooved bar 206, the inner walls on both sides in the second horizontal direction abut against the third grooved bar 206 to clamp the third grooved bar 206, and there is a gap between the inner wall at the bottom and the groove teeth 205 of the third grooved bar 206 in the vertical direction.

[0072] In the second grooved bar assembly, slots are provided at both the top and bottom of the second grooved bar 204, meaning that the groove teeth 205 of the second grooved bar 204 are located at the top and bottom of the second grooved bar 204. In the second receiving groove 221 corresponding to the second grooved bar 204, the inner walls on both sides in the second horizontal direction abut against the second grooved bar 204 to clamp the second grooved bar 204, and the inner wall at the bottom is spaced apart from the second grooved bar 204 in the vertical direction to avoid the groove teeth 205 of the second grooved bar 204. In the second receiving groove 51 corresponding to the second grooved bar 204, the inner walls on both sides in the second horizontal direction abut against the second grooved bar 204 to clamp the second grooved bar 204, and a second clearance groove 52 is provided on the inner wall at the top to avoid the groove teeth 205 of the second grooved bar 204.

[0073] In some embodiments, the boat 200 may further include a support column 207, the two ends of which may be connected to two end plates 201 respectively, and the support column 207 is spaced apart from a plurality of first grooved bars 203, a plurality of second grooved bars 204, and a plurality of third grooved bars 206. The support column 207 can support the two end plates 201 to improve the stability of the boat 200.

[0074] In one of the multiple receiving components 20, a support groove 222 is provided on the receiving frame 22 of the receiving component 20. The support groove 222 extends through the receiving frame 22 along the extending direction of the support column 207 and penetrates the top of the receiving frame 22. The support column 207 can be at least partially accommodated in the support groove 222 and abut against the inner wall of the support groove 222 at the bottom, so that the corresponding receiving frame 22 can support the support column 207.

[0075] It is understood that the extension direction of the support column 207 may be the same as the extension direction of the first grooved bar 203, or it may extend along the first horizontal direction. The embodiments of this application do not limit this.

[0076] It is understood that the two ends of the support column 207 can be positioned on the two end plates 201 respectively. The way in which the support column 207 is positioned on the end plate 201 can be the same as or similar to the way the first grooved bar 203 is positioned on the end plate 201, and will not be described in detail here.

[0077] In the embodiments of this application, the height of the support column 207 is not specifically limited. For example, the support column 207 may be at the same height as the second grooved bar 204, and the support column 207 may be located between the two second grooved bars 204 in the second horizontal direction.

[0078] Please refer to the following: Figure 8In some embodiments, each side frame 30 has a first positioning groove 31 on one side for abutting against the end plate 201. The first positioning groove 31 can penetrate the side frame 30 vertically and extend through the side frame 30 toward the other side frame 30. The side wall of the first positioning groove 31 in the first horizontal direction is perpendicular to the top surface of the base 11. The side positioning frame can accommodate the corresponding end plate 201, and the inner wall of the side positioning frame can abut against the end plate 201 to restrict the movement of the end plate 201 in the first and second horizontal directions.

[0079] like Figure 4 As shown, the positioning fixture 100 may further include multiple clamping plates 60, which are detachably connected to multiple side frames 30. Each side frame 30 is provided with multiple clamping plates 60, and some clamping plates 60 are located on the top of the side frame 30, while some clamping plates 60 are located on the side of the side frame 30 facing another side frame 30.

[0080] On each side frame 30, a clamping plate 60 located at the top of the side frame 30 can abut against the top of the corresponding end plate 201 to cooperate with the base 11 in vertically clamping the end plate 201 and restricting its movement in the vertical direction. A clamping plate 60 located on the side of the side frame 30 can abut against the side of the corresponding end plate 201 facing the other side frame 30 to cooperate with the inner wall of the first positioning groove 31 in the first horizontal direction to clamp the end plate 201 and restrict its movement in the first horizontal direction.

[0081] It is understandable that after the bottom of the end plate 201 abuts against the base 11 and the end plate 201 enters the corresponding first positioning groove 31, the operator can install multiple end plates 201 one by one on the side frame 30. The cooperation of the side frame 30, the base 10 and the clamping plate 60 can restrict the movement of each end plate 201 in the first horizontal direction, the second horizontal direction and the vertical direction, strengthen the relative fixation between the end plate 201 and the positioning fixture 100, and reduce the probability of the end plate 201 being displaced due to the flipping of the positioning fixture 100.

[0082] For example, each side frame 30 can be provided with three rows of clamping plates 60, which can be spaced apart in the vertical direction. Each row of clamping plates 60 can contain two clamping plates 60, which are spaced apart in the second horizontal direction; the two clamping plates 60 can be located on opposite sides of the corresponding first positioning groove 31. The top row of clamping plates 60 can be installed on the top of the side frame 30 and can abut against the top of the corresponding end plate 201. The middle and bottom rows of clamping plates 60 can be installed on the side of the side frame 30 facing the other side frame 30 and can abut against the side of the corresponding end plate 201 facing the other side frame 30.

[0083] In some embodiments, the positioning fixture 100 may further include a receiving seat 70 and a positioning member 80. There are two receiving seats 70, each detachably connected to one of two side frames 30. Each side frame 30 has a second positioning groove 32 on its side facing away from the other side frame 30. The second positioning groove 32 penetrates the side frame 30 along a second horizontal direction and also penetrates the side of the side frame 30 facing away from the other side frame 30 in a first horizontal direction. The receiving seat 70 can be accommodated within the second positioning groove 32. Each receiving seat 70 has a plurality of third receiving grooves 71 on its top. The plurality of third receiving grooves 71 can be spaced apart in the second horizontal direction, and each third receiving groove 71 can correspond to a lug 202. Each third receiving groove 71 can accommodate a portion of the structure of the corresponding lug 202, and the inner wall of each third receiving groove 71 can abut against the corresponding lug 202, so that the receiving seat 70 receives the corresponding lug 202 from the bottom.

[0084] There can be two positioning members 80, each detachably connected to one of two receiving seats 70. Each second positioning member 80 can be located on top of its corresponding receiving seat 70. Each second positioning member 80 has multiple third receiving slots 81 at its bottom. These third receiving slots 81 can be spaced apart in a second horizontal direction, and each third receiving slot 81 can correspond to a lug 202 and a third receiving slot 71. Each third receiving slot 81 can accommodate a portion of the structure of the corresponding lug 202, allowing the positioning member 80 to cover the corresponding lug 202 from the bottom.

[0085] It is understood that the inner wall of the third receiving groove 81 can cooperate with the inner wall of the third receiving groove 71 to block the lug 202 in any direction perpendicular to the first horizontal direction, thereby strengthening the protection of the lug 202. At the same time, the inner walls of the third receiving groove 81 and the third receiving groove 71 can abut against the corresponding lug 202 to restrict the movement of the corresponding lug 202. In this way, the lug 202 located on the positioning jig 100 can be kept relatively fixed to the positioning jig 100 and to other parts of the boat 200, thereby reducing the probability of displacement of the lug 202 when the positioning jig 100 is flipped, and reducing the probability that the shape of the boat 200 after sintering does not conform to the design.

[0086] The following describes in detail the implementation principle of the positioning fixture 100 according to an embodiment of this application, taking into account the case where the boat 200 includes a first grooved bar group, a second grooved bar group, and a third grooved bar group:

[0087] Each receiving seat 70 can be pre-installed on the corresponding side frame 30, and one of the side frames 30 can be pre-installed on the base 10.

[0088] When assembling the various components of the boat 200, the first end plate 201 can be placed in the first positioning groove 31 of the installed side frame 30, and then multiple clamping plates 60 can be installed on the side frame 30 so that the multiple clamping plates 60 abut against the top of the first end plate 201 and one side in the first horizontal direction, so that the side frame 30, the base 10 and the multiple clamping plates 60 cooperate to clamp the first end plate 201, and the first end plate 201 can be fixed with the positioning fixture 100.

[0089] Then, the multiple lugs 202 corresponding to the first end plate 201 can be placed in the corresponding third receiving groove 71, and the corresponding positioning member 80 can be installed on the receiving seat 70, so that the multiple lugs 202 can be clamped by the positioning member 80 and the receiving seat 70, and all the lugs 202 corresponding to the first end plate 201 can be fixed in the positioning fixture 100.

[0090] Then, multiple first grooved rods 203 can be placed in corresponding first receiving grooves 121, so that the receiving part 12 receives the multiple first grooved rods 203; at the same time, the first grooved rods 203 can be moved along the extension direction of the first receiving groove 121, so that the first grooved rods 203 are positioned on the first end plate 201. Then, multiple first clamping blocks 40 can be installed on the receiving part 12, so that the first grooved rods 203 are clamped by the first clamping blocks 40 and the receiving part 12, and the first grooved rods 203 are kept fixed to the positioning fixture 100.

[0091] Then, the receiving component 20 corresponding to the second slotted bar group can be installed on the base 10, and multiple second slotted bars 204 can be placed in the corresponding second receiving grooves 221, so that the receiving frame 22 of the receiving component 20 receives multiple second slotted bars 204; at the same time, the second slotted bars 204 can be moved along the extension direction of the second receiving grooves 221, so that the second slotted bars 204 are positioned on the first end plate 201. Then, the corresponding second clamping block 50 can be installed on the receiving frame 22 of the receiving component 20, so that the second slotted bars 204 are clamped by the second clamping block 50 and the receiving frame 22 of the receiving component 20, so that the second slotted bars 204 are fixed to the positioning fixture 100. Then, the receiving component 20 corresponding to the third slotted bar group can be installed on the base 10, and the second clamping block 50 and the receiving frame 22 of the receiving component 20 can clamp the third slotted bar 206 according to the above process, so that the third slotted bar 206 is fixed to the positioning fixture 100.

[0092] Then, the second end plate 201 can be placed in the first positioning groove 31 of the other side frame 30, and then multiple clamping plates 60 can be installed on the side frame 30, so that the multiple clamping plates 60 abut against the top of the second end plate 201 and one side in the first horizontal direction; then, the second end plate 201 and the corresponding side frame 30 can be installed on the base 10 simultaneously, and the multiple first grooved bars 203, multiple second grooved bars 204 and multiple third grooved bars 206 can be positioned on the second end plate 201 at the same time. The side frame 30, the base 10 and the multiple clamping plates 60 cooperate to clamp the second end plate 201, and the second end plate 201 can be kept fixed with the positioning fixture 100. Then, all the lugs 202 corresponding to the second end plate 201 can be fixed in the positioning fixture 100 in the same way as the lugs 202 corresponding to the first end plate 201.

[0093] At this point, all components of boat 200 are relatively fixed to the positioning fixture 100. Workers can apply a slurry to the connection points between the components of the positioning fixture 100, and then simultaneously heat both the positioning fixture 100 and the components of boat 200 to solidify the slurry. Then, workers can disassemble the positioning fixture 100 and remove boat 200, connected by the solidified slurry, from the positioning fixture 100. Boat 200 can then be transferred to a sintering processing device for sintering to complete the processing of boat 200.

[0094] It is understood that the positioning fixture 100 can restrict the relative movement between the various components of the boat 200, as well as the relative movement between the various components of the boat 200 and the positioning fixture 100. When the operator applies slurry to the connection points of the various components of the boat 200, while keeping the various components of the boat 200 relatively fixed to the splicing assembly, the operator can simultaneously rotate the various components of the boat 200 by flipping the positioning fixture 100, so that the parts to be coated with slurry face the operator. This can improve the convenience of the operator in applying slurry, reduce the probability of the various components of the boat 200 deviating from the preset position and placement angle during the rotation process, and reduce the probability of the shape of the boat 200 after sintering not conforming to the design.

[0095] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments described above should be considered exemplary and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this application.

Claims

1. A positioning clamp for restricting the movement of components of a boat, the boat comprising two end plates, a first grooved bar group, and a second grooved bar group, the two end plates being spaced apart in a first horizontal direction, the first grooved bar group and the second grooved bar group being spaced apart in a vertical direction, the first grooved bar group comprising a plurality of first grooved bars spaced apart along a second horizontal direction, the second grooved bar group comprising a plurality of second grooved bars spaced apart along the second horizontal direction, each first grooved bar having two ends connected to the two end plates, and each second grooved bar having two ends connected to the two end plates, wherein the first horizontal direction, the second horizontal direction, and the vertical direction are perpendicular, characterized in that... The positioning fixture includes: The base includes a base bottom and a receiving part, the receiving part is disposed on the base bottom, and a plurality of first receiving grooves are formed on the receiving part, each of the first receiving grooves being used to support the corresponding first groove bar; At least one receiving component, the receiving component including a support frame and a receiving frame, the support frame being detachably connected to the base, the receiving frame being disposed on the support frame, the receiving frame being spaced apart from the base in the vertical direction; in at least one of the receiving components, the receiving frame is provided with a second receiving groove for supporting a second groove bar; Two side frames, both of which are detachably connected to the base and spaced apart in the first horizontal direction, each side frame abutting against the side of the corresponding end plate away from the other end plate to clamp the boat.

2. The positioning fixture as described in claim 1, characterized in that, The positioning fixture also includes: Multiple first clamping blocks are detachably connected to the receiving portion. Each first clamping block has a first receiving groove on one side facing the receiving portion. Each first receiving groove communicates with a corresponding first receiving groove and is used to partially receive a corresponding first groove bar.

3. The positioning fixture as described in claim 2, characterized in that, The inner wall of the first receiving groove is provided with a first clearance groove. The inner wall of the first receiving groove can abut against the first groove bar and avoid the groove teeth on the first groove bar. The first clearance groove is used to receive the groove teeth of the first groove bar, and when the first clearance groove receives the groove teeth of the first groove bar, there is a gap between the inner wall of the first clearance groove and the groove teeth of the first groove bar.

4. The positioning fixture as described in claim 1, characterized in that, The positioning fixture also includes: Multiple second clamping blocks, each second clamping block being detachably connected to the corresponding receiving frame, each second clamping block having a second receiving slot on one side facing the corresponding receiving frame, each second receiving slot communicating with the corresponding second receiving slot, at least a portion of the second receiving slots being used to partially receive the corresponding second slot bar.

5. The positioning fixture as described in claim 4, characterized in that, At least a portion of the inner wall of the second receiving groove is provided with a second clearance groove, at least a portion of the inner wall of the second receiving groove can abut against the corresponding second groove bar and clearance the groove teeth of the second groove bar, at least a portion of the second clearance groove is used to receive the groove teeth of the corresponding second groove bar, and when the second clearance groove receives the groove teeth of the corresponding second groove bar, there is a gap between the inner wall of the second clearance groove and the groove teeth of the corresponding second groove bar.

6. The positioning fixture as described in claim 1, characterized in that, Each of the side frames has a first positioning groove on the side facing the other side frame, and each first positioning groove is used to receive the corresponding end plate.

7. The positioning fixture as described in claim 1, characterized in that, The positioning fixture further includes multiple clamping plates, which are detachably connected to the side frame; on each side frame, at least one clamping plate cooperates with the side frame to clamp the end plate in the first horizontal direction, and at least one clamping plate cooperates with the base to clamp the end plate in the vertical direction.

8. The positioning fixture as described in claim 1, characterized in that, The boat also includes a plurality of lugs, with at least one lug provided on the side of each end plate opposite to the other end plate, and the positioning fixture further includes: Two receiving seats are respectively disposed on two side frames. Each receiving seat is located on the side of the corresponding side frame away from the other side frame. Each receiving seat is provided with a third receiving groove, which is used to support the corresponding lug.

9. The positioning fixture as described in claim 8, characterized in that, The positioning fixture also includes: Two positioning members are provided, each corresponding to one of the two receiving seats. Each positioning member is detachably connected to the corresponding receiving seat. Each positioning member has a third receiving groove on one side facing the corresponding receiving seat. Each third receiving groove is used to partially receive the corresponding lug.

10. The positioning fixture as described in claim 1, characterized in that, The boat also includes a third grooved bar group, which is located on the side of the second grooved bar group away from the first grooved bar group in the vertical direction. The third grooved bar group includes a plurality of third grooved bars spaced apart along the second horizontal direction, and the two ends of each third grooved bar are respectively connected to the two end plates. The number of receiving components is at least two, wherein the support frames of the two receiving components are arranged adjacently in the second horizontal direction, and the receiving frames of the two receiving components are spaced apart in the vertical direction. The receiving frames of the two receiving components are respectively used to receive the second groove bar group and the third groove bar group. On each receiving frame, the second receiving groove is arranged in two rows in the second horizontal direction, and each row of the second receiving groove is used to receive at least a part of the structure of the corresponding second groove bar or the third groove bar.