A connecting structure for fixing a purification plate

By using clamp connection components and threaded hooks, the installation problem of cleanroom ceiling panels without lifting points has been solved, enabling simple and efficient installation and height adjustment of the cleanroom panels, thus improving construction efficiency and safety.

CN224549467UActive Publication Date: 2026-07-24XINJIANG ZHONGWEIGENUO CONSTR TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XINJIANG ZHONGWEIGENUO CONSTR TECH CO LTD
Filing Date
2025-06-30
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing cleanroom ceiling structures cannot secure the cleanroom panels when there are no concrete slabs or floor slabs as suspension points and the floor height is high. This makes construction difficult, installation challenging, and height adjustment cumbersome and complicated.

Method used

The system employs a connection structure consisting of clamp connecting components, threaded hangers, turnbuckles, threaded hooks, and a cleanroom panel assembly. The clamp connecting components are used to fix the system to the roof steel purlins, while the threaded hangers and turnbuckles are used to adjust the height of the threaded hooks. The cleanroom panel assembly is suspended by T-shaped keels and hanging lugs, achieving simple height adjustment and a secure connection.

Benefits of technology

It simplifies the high-altitude operation of cleanroom panel ceiling installation, improves construction efficiency, and features easy construction, high adjustability, safety, and labor-saving characteristics, ensuring the stable installation of cleanroom panels.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to clean room roof ceiling technology field, it is a kind of connection structure of fixed purification board, it includes roof steel purlin, hoop connecting assembly, threaded hanger, basket bolt, threaded lifting hook and purification board assembly, the upper portion of hoop connecting assembly is fixedly connected with roof steel purlin, the lower portion of hoop connecting assembly is fixedly connected with threaded hanger.The utility model is reasonable and compact in structure, convenient to use, it is connected with purification board assembly by hoop connecting assembly, threaded hanger, basket bolt, threaded lifting hook, connects purification board single board by T-shaped keel, suspends purification board assembly by T-shaped keel and lifting lug piece, not only simple structure, firm and reliable connection, but also the height of adjusting is simple and quick, installation efficiency is high, effectively solve the difficulty of purification board ceiling aerial work, speed up the construction efficiency of top surface operation, have the characteristics of simple construction, strong adjustability, safe, labor-saving, simple and efficient.
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Description

Technical Field

[0001] This utility model relates to the field of cleanroom ceiling technology, specifically a connection structure for fixing cleanroom panels. Background Technology

[0002] Cleanroom panels, also known as purification panels, are composite panels made of materials such as color-coated steel sheets, stainless steel, and aluminum alloy sheets as surface materials. Cleanroom panels possess unique dustproof, antistatic, and antibacterial properties. They are widely used in cleanroom engineering fields with stringent indoor environmental requirements, such as electronics, pharmaceuticals, food, biology, aerospace, precision instrument manufacturing, and scientific research. Currently, cleanroom panels are typically installed by fixing hangers or hooks to the concrete floor slab at the top of the room using expansion bolts, or by adding angle brackets and welding hanger bars to the concrete slab or floor slab at the top of the room, and then fixing the cleanroom panels with hooks and hangers to achieve the installation of the cleanroom ceiling panel.

[0003] Chinese patent document CN218205152U discloses a cleanroom ceiling structure, which includes a connector, a cleanroom panel, connecting bolts, and a hanger. The upper part of the connector is connected to the hanger via connecting bolts, and the other end of the hanger is fixed to the wall. The lower part of the connector is connected to the cleanroom panel. The connector includes a push block structure for separating the two cleanroom panels. The push block structure includes a sliding groove, a hinge plate, an adjusting bolt, and symmetrically arranged top blocks and hinge rods. The hinge rods connect the hinge plate and the top block. The upper and lower sides of the top block are respectively placed in the sliding groove. The hinge plate has threaded holes, and the threaded holes are equipped with adjusting bolts. Although this cleanroom ceiling structure can be used for the installation of cleanroom ceiling panels, it has the following problems in actual use: when there is neither a concrete slab nor a floor slab as a suspension point, and when the floor height is relatively high, it is impossible to fix the cleanroom panel, the construction operation is difficult, the installation operation is difficult, and the height adjustment is cumbersome and complicated. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a connection structure for fixing the cleanroom panel, which overcomes the shortcomings of the prior art. It can effectively solve the problems of existing cleanroom ceiling structures, such as the inability to fix the cleanroom panel, difficult construction operations, high installation difficulty, and complicated height adjustment when there is no concrete slab or floor slab as a suspension point and the floor height is relatively high.

[0005] The technical solution adopted by this utility model is: a connection structure for fixing a cleanroom panel, including a roof steel purlin, a clamp connection assembly, a threaded hanger, a turnbuckle, a threaded hook, and a cleanroom panel assembly. The upper part of the clamp connection assembly is fixedly connected to the roof steel purlin, and the lower part of the clamp connection assembly is fixedly connected to the threaded hanger. The clamp connection assembly includes a flat iron clamp, a clamp connection seat, a double-ended bolt, a left locking nut, and a right locking nut. The middle part of the flat iron clamp passes around the roof steel purlin and rests on the upper end of the roof steel purlin. The clamp connection seat is provided with a double-ended bolt that runs horizontally through the left and right sides. The left end of the flat iron clamp hangs down and is fixed to the left side of the double-ended bolt by the left locking nut, pressing the left end of the clamp connection seat. The right end of the flat iron clamp hangs down and is fixed to the right side by the right locking nut. The right side of the double-headed bolt is pressed against the right end of the clamp connecting seat. A threaded hanger is fixedly installed at the lower middle part of the clamp connecting seat. The lower part of the threaded hanger is fixedly connected to a threaded hook by a turnbuckle, and the height of the threaded hook can be adjusted. The lower end of the threaded hook is connected to the purification panel assembly. The purification panel assembly includes several purification panel panels, hanging lugs, and T-shaped keels. The short sides of the purification panel panels are fixedly connected together by the T-shaped keels. The vertical cross-section of the T-shaped keel is inverted T-shaped. The upper part of the upright plate of the T-shaped keel is provided with keel hanging holes. The two side flanges of the T-shaped keel are fixedly connected to the purification panel panels respectively. The front middle part of each purification panel panel is provided with a hanging lug. The threaded hook is suspended and fixed on the keel hanging holes and the hanging lugs.

[0006] The following are further optimizations and / or improvements to the technical solution applied for:

[0007] Furthermore, preferably, the lower part of the hanging lug is a horizontal rectangle, the middle part of the hanging lug is a trapezoid with a larger bottom and a smaller top, and the upper part of the hanging lug is a vertical rectangle. The upper part of the hanging lug is provided with a hanging lug hole, and the middle and lower parts of the hanging lug are provided with at least three rivet holes evenly spaced. The middle part of the front edge of the upper panel of the purification panel is provided with a lug insertion slot. The middle and lower parts of the hanging lug are installed in the lug insertion slot. The hanging lug is riveted and fixed to the front panel of the purification panel through rivet holes and pop rivets.

[0008] Furthermore, preferably, the upper part of the turnbuckle is provided with a right-hand internal threaded positive threaded hole, and the lower part of the turnbuckle is provided with a left-hand internal threaded negative threaded hole. The lower end of the threaded rod is connected to the positive threaded hole on the upper part of the turnbuckle through a right-hand thread. The upper external thread of the threaded hook is a left-hand thread and is connected to the negative threaded hole on the lower part of the turnbuckle. By rotating the turnbuckle, the threaded hook can be moved closer to or away from the threaded rod.

[0009] Furthermore, as a preferred embodiment, the cross-section of the clamp connecting seat is U-shaped. The clamp connecting seat includes a left plate, a bottom plate, and a right plate. The left plate, bottom plate, and right plate are connected as a whole to form an upward-opening connecting seat cavity. The middle portions of the left and right plates are respectively provided with transverse through holes. The left and right ends of the flat iron clamp are respectively provided with clamp lugs corresponding to the transverse through holes. The two ends of the double-ended bolt are respectively fitted into the corresponding transverse through holes and clamp lugs. The bottom center of the bottom plate of the clamp is provided with a vertical screw hole penetrating the bottom plate. The threaded rod is fixedly installed in the vertical screw hole through the external thread at the top. A set nut is fixedly installed at the upper end of the threaded rod above the vertical screw hole.

[0010] Furthermore, as a preferred embodiment, the flat iron clamp is a Q235 steel strip with a thickness of 3 mm, a length of 4 meters, a width of 30 mm, and a through hole with a diameter of 12 mm located 25 mm from both ends; the clamp connecting seat is a steel connecting seat with a cross-sectional thickness of 4 mm and a width of 80 mm; the threaded rod has a diameter of 10 mm, and the thread length at both ends of the threaded rod is 60 mm.

[0011] Furthermore, as a preferred embodiment, the T-shaped keel is an aluminum keel, the thickness of the upright plate and the two side flanges of the aluminum keel is 2 mm, the total width of the two side flanges of the aluminum keel is 60 mm, and the length of the aluminum keel is 6 meters; the lifting lugs are galvanized steel plates with a thickness of 1 mm.

[0012] This utility model has a reasonable and compact structure and is easy to use. It uses clamp connecting components, threaded hangers, turnbuckles, and threaded hooks to fix and connect the cleanroom panel assembly, T-shaped keel to connect the cleanroom panel individual panels, and T-shaped keel and hanging lugs to suspend the cleanroom panel assembly. Not only is the structure simple and the connection firm and reliable, but the height adjustment is also simple and quick, and the installation efficiency is high. It effectively solves the difficulty of high-altitude work on cleanroom panel ceilings and speeds up the construction efficiency of ceiling work. It has the characteristics of simple construction, strong adjustability, safety, labor saving, simplicity and high efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the left-side structure of this utility model;

[0015] Figure 3 for Figure 1 Enlarged structural diagram at point A;

[0016] Figure 4 for Figure 1 A three-dimensional structural diagram of the purification panel assembly.

[0017] Legend: 1 is the roof steel purlin, 2 is the clamp connection assembly, 201 is the flat iron clamp, 2011 is the clamp lug hole, 202 is the clamp connection seat, 2021 is the left plate of the connection seat, 2022 is the bottom plate of the connection seat, 2023 is the right plate of the connection seat, 2024 is the connection seat cavity, 2025 is the horizontal through hole, 2026 is the vertical screw hole, 203 is the double-ended bolt, 204 is the left locking nut, 205 is the right locking nut, 3 is the threaded hanger, 301 is the set nut, 4 is the turnbuckle, 5 is the threaded hook, 6 is the cleanroom panel, 601 is the lug insertion, 7 is the hanging lug, 701 is the suspension lug hole, 702 is the rivet hole, 703 is the pop rivet, 8 is the T-shaped keel, 801 is the keel suspension hole, 802 is the adhesive layer, and W is the total width dimension of the two flanges. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0019] Example 1:

[0020] As attached Figure 1-4 As shown, this utility model provides a connection structure for fixing a cleanroom panel, including a roof purlin 1, a clamp connection assembly 2, a threaded hanger 3, a turnbuckle 4, a threaded hook 5, and a cleanroom panel assembly. The upper part of the clamp connection assembly 2 is fixedly connected to the roof purlin 1, and the lower part of the clamp connection assembly 2 is fixedly connected to the threaded hanger 3. The clamp connection assembly 2 includes a flat iron clamp 201, a clamp connection seat 202, a double-ended bolt 203, a left locking nut 204, and a right locking nut 205. The middle part of the flat iron clamp 201 passes around the roof purlin 1 and rests on the upper end of the roof purlin 1. The clamp connection seat 202 is provided with a double-ended bolt 203 that runs horizontally through the left and right sides. The left end of the flat iron clamp 201 hangs down and is fixed to the left side of the double-ended bolt 203 by the left locking nut 204, pressing the left end of the clamp connection seat 202. The right end of the flat iron clamp 201 hangs down and is fixed by the right locking nut 205. Nut 205 is fixed to the right side of double-ended bolt 203 and presses against the right end of clamp connecting seat 202. A threaded hanger 3 is fixedly installed at the lower middle part of clamp connecting seat 202. A threaded hook 5 is fixedly connected to the lower part of the threaded hanger 3 by turnbuckle 4 and the height of the threaded hook 5 can be adjusted. The lower end of the threaded hook 5 is connected to the purification panel assembly. The purification panel assembly includes several purification panel 6, hanging lugs 7 and T-shaped keel 8. The short sides of the several purification panel 6 are fixedly connected together by T-shaped keel 8. The vertical cross section of the T-shaped keel 8 is inverted T-shaped. The upper part of the upright plate of the T-shaped keel 8 is provided with keel hanging hole 801. The two side flanges of the T-shaped keel 8 are fixedly connected to the purification panel 6 respectively. The front middle part of each purification panel 6 is provided with hanging lug 7. The threaded hook 5 is suspended and fixed on the keel hanging hole 801 and the hanging lug 7.

[0021] This utility model uses a clamp connecting component 2, a threaded hanger 3, a turnbuckle 4, and a threaded hook 5 to fix and connect the cleanroom panel assembly. It uses a T-shaped keel 8 to connect the cleanroom panel 6, and uses the T-shaped keel 8 and hanging lugs 7 to suspend the cleanroom panel assembly. It not only has a simple structure and a firm and reliable connection, but also allows for easy and quick height adjustment and high installation efficiency. It effectively solves the difficulty of high-altitude work on cleanroom panel ceilings and speeds up the construction efficiency of ceiling work. It has the characteristics of simple construction, strong adjustability, safety, labor saving, convenience, and high efficiency.

[0022] Example 2:

[0023] As attached Figure 1-4 As shown, the difference between this embodiment and Embodiment 1 is that the lower part of the hanging lug 7 is a horizontal rectangle, the middle part of the hanging lug 7 is a trapezoid with a larger bottom and a smaller top, and the upper part of the hanging lug 7 is a vertical rectangle. The upper part of the hanging lug 7 has a hanging lug hole 701, and the middle and lower parts of the hanging lug 7 have at least three rivet holes 702 evenly spaced. The upper panel of the purification panel 6 has a lug insertion slot 601 at the middle of its front edge. The middle and lower parts of the hanging lug 7 are installed in the lug insertion slot 601. The hanging lug 7 is riveted and fixed to the front side panel of the purification panel 6 through the rivet holes 702 and the pop rivets 703. The lug insertion slot 601 is formed by cutting at the edge of the upper side panel of the purification panel 6, the hanging lug 7 is inserted into the lug insertion slot 601, and then the hanging lug 7 is riveted and fixed to the side sealing steel plate of the purification panel 6 using the pop rivets 703. Blind rivets are a well-known and widely used technology. They are rivets used for single-sided riveting and require the use of a rivet gun (manual, electric, or pneumatic) for riveting.

[0024] Example 3:

[0025] As attached Figure 1-4As shown, the difference between this embodiment and embodiments 1 and 2 is that the upper part of the turnbuckle 4 is provided with a right-hand internal threaded positive thread hole, and the lower part of the turnbuckle 4 is provided with a left-hand internal threaded negative thread hole. The lower end of the threaded rod 3 is connected to the positive thread hole on the upper part of the turnbuckle 4 through a right-hand thread. The upper external thread of the threaded hook 5 is a left-hand thread and is connected to the negative thread hole on the lower part of the turnbuckle 4. By rotating the turnbuckle 4, the threaded hook 5 can be moved closer to or away from the threaded rod 3. The turnbuckle 4 is a well-known and commonly used technology, also known as a turnbuckle screw, rigging spiral buckle, tensioning buckle, or open-body turnbuckle. It is a connecting hardware that uses bidirectional threads to adjust the length. It is mainly used to tighten or fix components such as wire ropes and cables. Through the extension and retraction of the screw structure with left-hand and right-hand threads at both ends, the wire rope or tie rod can be tightened or loosened in both directions simultaneously. The advantage of this design is that the threads at both ends of the threaded rod 3 are common right-hand threads, so there is no need to distinguish between the threads at both ends of the threaded rod 3 during manufacturing and assembly. Instead, the upper external thread of the threaded hook 5 and the reverse thread hole at the bottom of the turnbuckle 4 are made into less common left-hand threads, and a mark is machined on the outside of the turnbuckle 4, making manufacturing and assembly more convenient.

[0026] Example 4:

[0027] As attached Figure 1 , 3As shown, the difference between this embodiment and embodiments 1-3 is that the cross-section of the clamp connecting seat 202 is U-shaped. The clamp connecting seat 202 includes a left connecting plate 2021, a bottom connecting plate 2022, and a right connecting plate 2023. The left connecting plate 2021, the bottom connecting plate 2022, and the right connecting plate 2023 are connected as a whole to form an upward-opening connecting seat cavity 2024. The middle portions of the left connecting plate 2021 and the right connecting plate 2023 are respectively provided with transverse through holes 2025. The flat iron clamp 20 The left and right ends of 1 are respectively provided with clamp ear holes 2011 at the corresponding horizontal through holes 2025. The two ends of the double-headed bolt 203 are respectively fitted into the corresponding horizontal through holes 2025 and clamp ear holes 2011. The bottom center of the base plate 2022 is provided with a vertical screw hole 2026 that penetrates the base plate 2022. The threaded rod 3 is fixedly installed in the vertical screw hole 2026 through the external thread at the top. A set nut 301 is fixedly installed on the upper end of the threaded rod 3 above the vertical screw hole 2026. The double-ended bolt 203 is preferably a 100 mm long bolt with an M12 thread diameter. During installation, first, the upper part of the threaded rod 3 is threadedly fixed into the vertical threaded hole 2026. Its upper end is then inserted into the connecting seat cavity 2024 of the clamp connecting seat 202. A set nut 301 is then fixedly installed at its upper end, pressing the lower end of the set nut 301 against the upper end of the connecting seat base plate 2022. The set nut 301 prevents the threaded rod 3 from accidentally dislodging from the clamp. The vertical screw hole 2026 is disengaged for greater safety and reliability. Next, the double-ended bolt 203 is passed from left to right through the left plate 2021 and right plate 2023 of the clamp connecting seat 202. Then, the clamp lug 2011 at the left end of the flat iron clamp 201 is fitted onto the left end of the double-ended bolt 203 and the left locking nut 204 is fixedly installed. The clamp lug 2011 at the right end of the flat iron clamp 201 is fitted onto the right end of the double-ended bolt 203 and the right locking nut 205 is fixedly installed.

[0028] Example 5:

[0029] As attached Figure 1-4 As shown, the difference between this embodiment and embodiments 1-4 is that the flat iron clamp 201 is a Q235 steel strip with a thickness of 3 mm, a length of 4 meters, a width of 30 mm, and a clamp lug 2011 with a diameter of 12 mm located 25 mm from both ends; the clamp connecting seat 202 is a steel connecting seat with a cross-sectional thickness of 4 mm and a width of 80 mm; the threaded rod 3 has a diameter of 10 mm, and the thread length at both ends of the threaded rod 3 is 60 mm.

[0030] Example 6:

[0031] As attached Figure 1 , 2As shown in Figure 4, the difference between this embodiment and embodiments 1-5 is that the T-shaped keel 8 is an aluminum keel, the thickness of the upright plate and the two side flanges of the aluminum keel is 2 mm, the total width W of the two side flanges of the aluminum keel is 60 mm, and the length of the aluminum keel is 6 meters; the lifting lug 7 is a galvanized steel plate with a thickness of 1 mm. The aluminum keel is lightweight and has good strength, as shown in the attached figure. Figure 2 , 4 As shown, during installation, glue is continuously applied to the contact points between the short side end and bottom end of the purification panel 6 and the vertical plate and side flanges of the T-shaped keel 8 to form a glue layer 802 that firmly fixes the T-shaped keel 8 and the purification panel 6, which can make the overall strength of the purification panel assembly more robust.

[0032] In the description of this application, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0033] This utility model is illustrated with reference to the accompanying drawings. The directional terms such as "upper", "lower", "left", "right", "top", and "bottom" mentioned therein are only for better and clearer explanation and understanding of this utility model, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] The preferred embodiments of this utility model have been described above, but should not be construed as limiting the claims. This utility model is not limited to the above embodiments, and its specific structure may vary. Any simple modifications, equivalent changes, and substitutions made to the above embodiments based on the technical essence of this utility model are still within the protection scope of this utility model.

Claims

1. A connection structure for fixing a purification panel, characterized in that: The system includes a roof purlin, a clamp connection assembly, a threaded hanger, a turnbuckle, a threaded hook, and a cleanroom panel assembly. The upper part of the clamp connection assembly is fixedly connected to the roof purlin, and the lower part is fixedly connected to the threaded hanger. The clamp connection assembly includes a flat iron clamp, a clamp connection seat, a double-ended bolt, a left locking nut, and a right locking nut. The middle part of the flat iron clamp passes around the roof purlin and rests on the upper end of the roof purlin. The clamp connection seat has a double-ended bolt that runs horizontally through the purlin. The left end of the flat iron clamp hangs down and is fixed to the left side of the double-ended bolt by the left locking nut, pressing against the left end of the clamp connection seat. The right end of the flat iron clamp hangs down and is fixed to the right side of the double-ended bolt by the right locking nut, pressing against the clamp connection seat. At the right end, a threaded hanger rod is fixedly installed at the lower middle part of the clamp connecting seat. The lower part of the threaded hanger rod is fixedly connected to a threaded hook by a turnbuckle, and the height of the threaded hook can be adjusted. The lower end of the threaded hook is connected to a purification panel assembly. The purification panel assembly includes several purification panel panels, hanging lugs, and T-shaped keels. The short sides of the purification panel panels are fixedly connected together by the T-shaped keels. The vertical cross-section of the T-shaped keel is inverted T-shaped. The upper part of the upright plate of the T-shaped keel is provided with a keel suspension hole. The two side flanges of the T-shaped keel are fixedly connected to the purification panel panels respectively. The front middle part of each purification panel panel is provided with a hanging lug. The threaded hook is suspended and fixed on the keel suspension hole and the hanging lug.

2. The connection structure for fixing a purification plate according to claim 1, characterized in that: The lower part of the hanging lug is a horizontal rectangle, the middle part of the hanging lug is a trapezoid with a larger bottom and a smaller top, and the upper part of the hanging lug is a vertical rectangle. The upper part of the hanging lug is provided with a hanging lug hole, and the middle and lower parts of the hanging lug are provided with no less than three rivet holes evenly spaced. The middle part of the front edge of the upper panel of the purification board is provided with a lug insertion slot. The middle and lower parts of the hanging lug are installed in the lug insertion slot. The hanging lug is riveted and fixed to the front panel of the purification board through rivet holes and pop rivets.

3. The connection structure for fixing a purification plate according to claim 1 or 2, characterized in that: The turnbuckle has a right-hand internal threaded hole at the top and a left-hand internal threaded hole at the bottom. The lower end of the threaded rod is connected to the right-hand threaded hole at the top of the turnbuckle via a right-hand thread. The upper external thread of the threaded hook is a left-hand thread and is connected to the left-hand threaded hole at the bottom of the turnbuckle. By rotating the turnbuckle, the threaded hook can be moved closer to or away from the threaded rod.

4. The connection structure for fixing a purification plate according to claim 1 or 2, characterized in that: The cross-section of the clamp connecting seat is U-shaped. The clamp connecting seat includes a left plate, a bottom plate, and a right plate. The left plate, bottom plate, and right plate are connected as a whole to form an upward-opening connecting seat cavity. The middle part of the left plate and right plate is provided with a transverse through hole. The left and right ends of the flat iron clamp are respectively provided with clamp lugs at the transverse through holes. The two ends of the double-ended bolt are respectively fitted into the corresponding transverse through holes and clamp lugs. The bottom center of the bottom plate is provided with a vertical screw hole that penetrates the bottom plate. The threaded rod is fixedly installed in the vertical screw hole through the external thread at the top. A set nut is fixedly installed at the upper end of the threaded rod above the vertical screw hole.

5. The connection structure for fixing a purification plate according to claim 3, characterized in that: The cross-section of the clamp connecting seat is U-shaped. The clamp connecting seat includes a left plate, a bottom plate, and a right plate. The left plate, bottom plate, and right plate are connected as a whole to form an upward-opening connecting seat cavity. The middle part of the left plate and right plate is provided with a transverse through hole. The left and right ends of the flat iron clamp are respectively provided with clamp lugs at the transverse through holes. The two ends of the double-ended bolt are respectively fitted into the corresponding transverse through holes and clamp lugs. The bottom center of the bottom plate is provided with a vertical screw hole that penetrates the bottom plate. The threaded rod is fixedly installed in the vertical screw hole through the external thread at the top. A set nut is fixedly installed at the upper end of the threaded rod above the vertical screw hole.

6. The connection structure for fixing a purification plate according to claim 1, 2, or 5, characterized in that: The flat iron clamp is a Q235 steel strip with a thickness of 3 mm, a length of 4 meters, a width of 30 mm, and a clamp lug with a diameter of 12 mm located 25 mm from both ends; the clamp connecting seat is a steel connecting seat with a cross-sectional thickness of 4 mm and a width of 80 mm; the threaded rod has a diameter of 10 mm, and the thread length at both ends of the threaded rod is 60 mm.

7. The connection structure for fixing a purification plate according to claim 3, characterized in that: The flat iron clamp is a Q235 steel strip with a thickness of 3 mm, a length of 4 meters, a width of 30 mm, and a clamp lug with a diameter of 12 mm located 25 mm from both ends; the clamp connecting seat is a steel connecting seat with a cross-sectional thickness of 4 mm and a width of 80 mm; the threaded rod has a diameter of 10 mm, and the thread length at both ends of the threaded rod is 60 mm.

8. The connection structure for fixing a purification plate according to claim 4, characterized in that: The flat iron clamp is a Q235 steel strip with a thickness of 3 mm, a length of 4 meters, a width of 30 mm, and a clamp lug with a diameter of 12 mm located 25 mm from both ends; the clamp connecting seat is a steel connecting seat with a cross-sectional thickness of 4 mm and a width of 80 mm; the threaded rod has a diameter of 10 mm, and the thread length at both ends of the threaded rod is 60 mm.

9. A connection structure for fixing a purification plate according to claim 1, 2, 5, 7, or 8, characterized in that: The T-shaped keel is made of aluminum, and the thickness of the upright plate and the two side flanges of the aluminum keel is 2 mm. The total width of the two side flanges of the aluminum keel is 60 mm, and the length of the aluminum keel is 6 meters. The lifting lugs are made of galvanized steel plates with a thickness of 1 mm.

10. A connection structure for fixing a purification plate according to claim 3, 4, or 6, characterized in that: The T-shaped keel is made of aluminum, and the thickness of the upright plate and the two side flanges of the aluminum keel is 2 mm. The total width of the two side flanges of the aluminum keel is 60 mm, and the length of the aluminum keel is 6 meters. The lifting lugs are made of galvanized steel plates with a thickness of 1 mm.