An inverted worm lock fastening device

Abstract

This invention provides an inverted creep-lock fastening device for suspending sheet metal, comprising: an upper suspension member, the upper end of which can be connected to a structural beam; a locking mechanism, comprising an upper locking member and a lower locking member that engage with each other; and a creep-lock mechanism, comprising an outer cylinder, an adjusting nut, a top rod, an elastic member, and multiple extension sections. The upper end of the outer cylinder slidably passes through the lower locking member and is connected to the adjusting nut. The top rod is disposed inside the outer cylinder and its upper end is connected to the lower locking member, and its lower end is connected to the elastic member. The outer cylinder is disposed around the elastic member. The extension sections are arranged in a conical shape with a larger upper diameter and a smaller lower diameter. The upper end of each extension section is rotatably connected to the lower end of the top rod, and its lower end is rotatably connected to the lower end of the elastic member. The outer surface of the extension section is provided with locking teeth, and the lower end of the outer cylinder abuts against the locking teeth of each extension section. The beneficial effects of this invention are: stable suspension of sheet metal, no need to drill holes in the structural beam and sheet metal, convenient disassembly, and avoidance of damage to the sheet metal during disassembly.

Description

Technical Field

[0001] This invention relates to the field of plate suspension installation technology, and in particular to an inverted creep-lock fastening device. Background Technology

[0002] A suspended ceiling refers to the decoration of the top of a room, serving a decorative and aesthetic purpose. Before installing a suspended ceiling, a joist (or framework) needs to be installed on the ceiling, and then decorative panels are installed along the joist. In some cases, where the ceiling is large and there is no floor slab to anchor the joists, an inverted structural beam device is used to pull the components back and secure the panels. However, current inverted structural beam devices require expansion bolts to connect the structural beams and fastening bolts to connect the panels, thus requiring perforations in both the beams and panels, which damages their structure. Furthermore, after installation, disassembly and repair of the panels will damage their structure. Summary of the Invention

[0003] In view of this, in order to solve the problem of inverted panels hanging from the roof of a house without any support or fixing points, embodiments of the present invention provide an inverted creep-lock fastening device.

[0004] An embodiment of the present invention provides an inverted creep-lock fastening device, comprising:

[0005] The upper suspension component can be connected to the structural beam at its upper end;

[0006] A locking mechanism includes an upper locking member and a lower locking member. The upper locking member has forward hooks on both sides, and the lower locking member has reverse hooks on both sides. The upper locking member and the lower locking member are engaged with each other, and the two forward hooks are engaged with the two reverse hooks respectively.

[0007] The outer cylinder includes an outer cylinder, an adjusting nut, a push rod, an elastic element, and multiple extension sections. The upper end of the outer cylinder slidably passes through the lower locking element and is connected to the adjusting nut. The push rod is disposed inside the outer cylinder and its upper end is connected to the lower locking element, and its lower end is connected to the elastic element. The outer cylinder is disposed around the elastic element. Each extension section is arranged in a cone shape with a larger upper diameter and a smaller lower diameter. The upper end of each extension section is rotatably connected to the lower end of the push rod, and its lower end is rotatably connected to the lower end of the elastic element. The outer surface of each extension section is provided with locking teeth, and the lower end of the outer cylinder abuts against the locking teeth of each extension section.

[0008] Furthermore, the extension joint is a V-shaped link.

[0009] Furthermore, the extension joint includes an outer tie rod and an inner tie rod. The outer tie rod is inclined, and the locking teeth are disposed on the outer side of the outer tie rod and continuously disposed along the length direction of the outer tie rod. The upper end of the outer tie rod is rotatably connected to the lower end of the top rod, and the lower end is fixedly connected to the outer end of the inner tie rod. The inner end of the inner tie rod is rotatably connected to the lower end of the elastic element.

[0010] Furthermore, the elastic element is a spring.

[0011] Furthermore, the upper locking member includes a first upper horizontal plate, a second upper horizontal plate, a third upper horizontal plate, a first upper vertical plate, a second upper vertical plate, and a third upper vertical plate. The upper end of the first upper vertical plate is connected to the upper hanging member, the middle part is connected to the first upper horizontal plate, and the lower end is connected to the second upper horizontal plate. The two ends of the second upper horizontal plate are respectively connected to the upper end of the second upper vertical plate and the upper end of the third upper vertical plate. The lower end of the second upper vertical plate is connected to one end of the third upper horizontal plate, and the other end of the third upper horizontal plate extends toward the third upper vertical plate.

[0012] The lower locking member includes a first lower horizontal plate, a second lower horizontal plate, a third lower horizontal plate, a first lower vertical plate, a second lower vertical plate, and a third lower vertical plate. The middle part of the first lower horizontal plate is connected to the lower end of the first lower vertical plate, and one end is connected to one end of the third lower vertical plate. The upper end of the first lower vertical plate is connected to one end of the second lower horizontal plate. The other end of the second lower horizontal plate extends away from the third lower vertical plate and is connected to the lower end of the second lower vertical plate. The upper end of the third lower vertical plate is connected to one end of the third lower horizontal plate, and the other end of the third lower horizontal plate extends toward the second lower vertical plate.

[0013] The third lower horizontal plate can be inserted between the first upper horizontal plate and the second upper horizontal plate, and the third upper horizontal plate can be inserted between the first lower horizontal plate and the second lower horizontal plate, so that the upper locking member and the lower locking member are engaged.

[0014] Furthermore, the upper surface of the second upper horizontal plate is provided with the hook located below the first upper horizontal plate, and the upper surface of the third upper horizontal plate is provided with the hook;

[0015] The lower surface of the second lower horizontal plate is provided with the reverse hook, and the lower surface of the third lower horizontal plate is provided with the reverse hook;

[0016] The hook on the second upper horizontal plate engages with the hook on the third lower horizontal plate, and the hook on the third upper horizontal plate engages with the hook on the second lower horizontal plate.

[0017] Furthermore, the inner wall at the connection between the upper end of the second upper vertical plate and the second upper horizontal plate is provided with concave teeth, and the upper end of the second lower vertical plate is provided with convex teeth, the convex teeth being able to engage with the concave teeth;

[0018] The inner wall of the connection between the lower end of the third lower vertical plate and the first lower horizontal plate is provided with concave teeth, and the lower end of the third upper vertical plate is provided with convex teeth, which can engage with the concave teeth.

[0019] Furthermore, the upper end of the outer cylinder passes through the first lower horizontal plate, and the adjusting nut is placed on the first lower horizontal plate and locks the upper end of the outer cylinder.

[0020] Furthermore, the upper suspension component includes a suspension plate and a lower clamping plate. The suspension plate includes an upper fixed clamping plate and a side baffle perpendicularly connected to the upper fixed clamping plate. The lower clamping plate includes a lower movable clamping plate and a side connecting plate perpendicularly connected to the lower movable clamping plate. The side baffle is provided with a plurality of adjustment holes spaced apart along the vertical direction. The side connecting plate is attached to the side baffle and connected to the adjustment holes by adjustment bolts. The upper fixed clamping plate and the lower movable clamping plate can clamp the structural beam.

[0021] Furthermore, both the lower surface of the upper fixed clamping plate and the upper surface of the lower movable clamping plate are provided with teeth.

[0022] The beneficial effects of the technical solutions provided by the embodiments of the present invention are as follows:

[0023] 1. The present invention provides an inverted creep-lock fastening device, which is connected to a structural beam via an upper suspension member. The lower part of the extension section of the creep-lock mechanism is placed in the blind mounting hole on the back of the plate. The lower end of each extension section is restricted within the blind mounting hole. The lower end of the outer cylinder presses against each extension section, so that the plate is stably suspended. There is no need to make perforations in the structural beam and the plate, which ensures the relative integrity of the structure of the structural beam and the plate. Furthermore, by simply moving the outer cylinder downward, each extension section can retract and detach from the blind mounting hole on the back of the plate, making disassembly convenient and avoiding damage to the plate during disassembly.

[0024] 2. In the inverted creep-lock fastening device of the present invention, when the locking mechanism is pulled down, the upper locking member and the lower locking member undergo plastic deformation. Under the limiting action of the forward hook and the reverse hook, the concave tooth undergoes slight deformation and compression, thereby increasing the bonding force between the convex tooth and the concave tooth, and the upper locking member and the lower locking member will firmly grip each other without large slippage. Attached Figure Description

[0025] Figure 1 This is an installation diagram of an inverted peristaltic locking device according to the present invention;

[0026] Figure 2 This is a schematic diagram of an inverted peristaltic locking device according to the present invention;

[0027] Figure 3 This is a partial schematic diagram of the upper suspension component;

[0028] Figure 4 This is a schematic diagram of the locking mechanism;

[0029] Figure 5 This is a schematic diagram of the locking mechanism.

[0030] Figure 6 This is a schematic diagram of a creep-lock mechanism;

[0031] Figure 7 This is a cross-sectional view of the creepage mechanism;

[0032] Figure 8 This is a schematic diagram of the installation of the creep lock mechanism.

[0033] In the diagram: 100. Inverted creep-lock fastening device; 1. Upper suspension component; 11. Suspension plate; 12. Lower clamping plate; 13. Upper fixed clamping plate; 14. Side baffle; 15. Lower movable clamping plate; 16. Side connecting plate; 17. Biting teeth; 18. Adjusting bolt; 2. Locking mechanism; 21. Upper locking component; 211. First upper horizontal plate; 212. Second upper horizontal plate; 213. Third upper horizontal plate; 214. First upper vertical plate; 215. Second upper vertical plate; 216. Third upper vertical plate; 22. Lower locking component; 221. First lower horizontal plate; 2 22. Second lower horizontal plate; 223. Third lower horizontal plate; 224. First lower vertical plate; 225. Second lower vertical plate; 226. Third lower vertical plate; 2a. Forward hook; 2b. Reverse hook; 2c. Concave tooth; 2d. Convex tooth; 3. Creep lock mechanism; 31. Outer cylinder; 32. Adjusting nut; 33. Top rod; 34. Elastic element; 35. Extension joint; 351. Outer tie rod; 352. Inner tie rod; 36. External thread; 37. Upper washer; 38. Lower washer; 39. Clamping tooth; 200. Structural beam; 300. Plate; 301. Mounting blind hole. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be further described below with reference to the accompanying drawings. The following description presents a preferred embodiment of the various possible embodiments of the present invention, intended to provide a basic understanding of the invention, but not intended to identify key or decisive elements of the invention or to limit the scope of protection sought.

[0035] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0036] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0037] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures. Also, it should be understood that, for ease of description, the dimensions of the various parts shown in the figures are not drawn to actual scale.

[0038] It should be further noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0039] Please refer to Figure 1 and 2 The present invention provides an inverted creep lock fastening device 100, which is used for hanging the board 300 upside down during the construction of the ceiling of a house, and is especially suitable for hanging the board 300 upside down without a support fixing point on the top of the house. The inverted creep lock fastening device 100 mainly includes an upper suspension member 1, a locking mechanism 2 and a creep lock mechanism 3.

[0040] The upper end of the upper suspension member 1 can be connected to the structural beam 200, thereby connecting the inverted creep-lock fastening device 100 to the structural beam 200. Specifically, the upper suspension member 1 includes a suspension plate 11 and a lower clamping plate 12.

[0041] like Figure 2 and 3 As shown, the suspension plate 11 includes an upper fixed clamping plate 13 and a side baffle 14 vertically connected to the upper fixed clamping plate 13. The upper fixed clamping plate 13 is horizontally arranged, and the side baffle 14 is vertically arranged. The side baffle 14 is provided with a plurality of adjustment holes spaced apart along the vertical direction.

[0042] The lower clamping plate 12 includes a lower movable clamping plate 15 and a side connecting plate 16 vertically connected to the lower movable clamping plate 15. The lower movable clamping plate 15 is horizontally arranged, and the side connecting plate 16 is vertically arranged. The side connecting plate 16 is attached to the side baffle 14 and connected to the adjusting hole through adjusting bolts 18. The upper fixed clamping plate 13 and the lower movable clamping plate 15 are arranged vertically opposite each other to form a clamping claw, thereby clamping the structural beam 200. The lower movable clamping plate 15 can be connected to different adjusting holes through adjusting bolts 18, thereby adjusting the distance between the upper fixed clamping plate 13 and the lower movable clamping plate 15. In this way, the distance between the upper fixed clamping plate 13 and the lower movable clamping plate 15 can be adjusted according to the actual thickness of the structural beam 200 to achieve clamping of structural beams 200 of different thicknesses.

[0043] Preferably, in order to ensure that the upper suspension component 1 is securely suspended on the structural beam 200, the lower surface of the upper fixed clamping plate 13 and the upper surface of the lower movable clamping plate 15 are provided with teeth 17. The teeth 17 directly engage with the surface of the structural beam 200, which can prevent the upper suspension component 1 from loosening and falling off.

[0044] like Figure 4 As shown, the locking mechanism 2 mainly includes an upper locking member 21 and a lower locking member 22. The upper locking member 21 is connected to the upper suspension member 1, and the lower locking member 22 is connected to the creeping lock mechanism 3. The upper locking member 21 has forward hooks 2a on both sides, and the lower locking member 22 has reverse hooks 2b on both sides. The upper and lower locking members engage with each other, and the two forward hooks 2a engage with the two reverse hooks 2b respectively.

[0045] The upper locking member 21 specifically includes a first upper horizontal plate 211, a second upper horizontal plate 212, a third upper horizontal plate 213, a first upper vertical plate 214, a second upper vertical plate 215, and a third upper vertical plate 216. The upper end of the first upper vertical plate 214 is connected to the upper hanging member 1, the middle part is connected to the first upper horizontal plate 211, and the lower end is connected to the second upper horizontal plate 212. The two ends of the second upper horizontal plate 212 are respectively connected to the upper ends of the second upper vertical plate 215 and the upper ends of the third upper vertical plate 216. The lower end of the second upper vertical plate 215 is connected to one end of the third upper horizontal plate 213, and the other end of the third upper horizontal plate 213 extends toward the third upper vertical plate 216.

[0046] The lower locking member 22 specifically includes a first lower horizontal plate 221, a second lower horizontal plate 222, a third lower horizontal plate 223, a first lower vertical plate 224, a second lower vertical plate 225, and a third lower vertical plate 226. The middle part of the first lower horizontal plate 221 is connected to the lower end of the first lower vertical plate 224, and one end is connected to one end of the third lower vertical plate 226. The upper end of the first lower vertical plate 224 is connected to one end of the second lower horizontal plate 222. The other end of the second lower horizontal plate 222 extends away from the third lower vertical plate 226 and is connected to the lower end of the second lower vertical plate 225. The upper end of the third lower vertical plate 226 is connected to one end of the third lower horizontal plate 223, and the other end of the third lower horizontal plate 223 extends toward the second lower vertical plate 225.

[0047] The third lower horizontal plate 223 can be inserted between the first upper horizontal plate 211 and the second upper horizontal plate 212, and the third upper horizontal plate 213 can be inserted between the first lower horizontal plate 221 and the second lower horizontal plate 222. The third upper vertical plate 216 is in contact with the inner side of the third lower vertical plate 226, and the second lower vertical plate 225 is in contact with the inner side of the second upper vertical plate 215, so that the upper locking member 21 and the lower locking member 22 are tightly engaged.

[0048] Furthermore, the portion of the upper surface of the second upper horizontal plate 212 located below the first upper horizontal plate 211 is provided with the forward hook 2a, and the upper surface of the third upper horizontal plate 213 is also provided with the forward hook 2a; the lower surface of the second lower horizontal plate 222 is provided with the reverse hook 2b, and the lower surface of the third lower horizontal plate 223 is also provided with the reverse hook 2b; the forward hook 2a on the second upper horizontal plate 212 engages with the reverse hook 2b on the third lower horizontal plate 223, and the forward hook 2a on the third upper horizontal plate 213 engages with the reverse hook 2b on the second lower horizontal plate 222. Through the engagement of the two forward hooks 2a and the two reverse hooks 2b, the upper locking member 21 and the lower locking member 22 are more tightly engaged, preventing them from disengaging relative to each other.

[0049] Furthermore, the inner wall of the connection between the upper end of the second upper vertical plate 215 and the second upper horizontal plate 212 is provided with concave teeth, and the upper end of the second lower vertical plate 225 is provided with convex teeth 2c and concave teeth 2d, which can engage with the concave teeth. The inner wall of the connection between the lower end of the third lower vertical plate 226 and the first lower horizontal plate 221 is provided with concave teeth, and the lower end of the third upper vertical plate 216 is provided with convex teeth 2c and concave teeth 2d, which can engage with the concave teeth.

[0050] like Figure 5 As shown, it should be noted that when the lower locking member 22 is subjected to a downward pulling force, the upper locking member 21 and the lower locking member 22 will undergo plastic deformation, specifically lateral compression and longitudinal elongation. Thus, under the limiting action of the forward hook 2a and the reverse hook 2b, the concave tooth undergoes slight deformation and compression, thereby increasing the bonding force between the convex tooth 2c and the concave tooth 2d and the concave tooth. The upper locking member 21 and the lower locking member 22 will firmly grip each other without significant slippage or detachment.

[0051] like Figure 6 , 7 As shown in Figure 8, the creep locking mechanism 3 is used to directly connect to the plate 300 to be installed. The creep locking mechanism 3 mainly includes an outer cylinder 31, an adjusting nut 32, a push rod 33, an elastic element 34, and multiple extension sections 35.

[0052] The upper end of the outer cylinder 31 slidably passes through the lower locking member 22 and is connected to the adjusting nut 32. Here, the outer cylinder 31 is vertically positioned, with an external thread 36 at its upper end that passes through the first lower horizontal plate 221. The adjusting nut 32 is placed on the first lower horizontal plate 221 and locks the upper end of the outer cylinder 31. The length of the portion of the outer cylinder 31 below the first lower horizontal plate 221 can be adjusted by turning the adjusting nut 32. An upper washer 37 is provided between the adjusting nut 32 and the first lower horizontal plate 221, and a lower washer 38 is fixedly provided on the lower surface of the first lower horizontal plate 221. The outer cylinder 31 passes through the upper washer 37 and the lower washer 38.

[0053] The push rod 33 is vertically disposed inside the outer cylinder 31 and coaxially disposed with the outer cylinder 31. The upper end of the push rod 33 is fixedly connected to the first lower horizontal plate 221 of the lower locking member 22, and the lower end of the push rod 33 is connected to the elastic member 34. The elastic member 34 is generally a spring, and the spring is coaxially disposed with the push rod 33. Furthermore, the outer cylinder 31 is disposed around the elastic member 34.

[0054] The extension joints 35 are arranged in a conical shape with a larger upper diameter and a smaller lower diameter, and are evenly distributed around the axis of the sleeve. The upper end of each extension joint 35 is rotatably connected to the lower end of the top rod 33, and the lower end is rotatably connected to the lower end of the elastic element 34. The outer surface of each extension joint 35 is provided with retaining teeth 39, and the lower end of the outer cylinder 31 abuts against the retaining teeth 39 of each extension joint 35.

[0055] The extension joint 35 is a V-shaped connecting rod. Specifically, the extension joint 35 includes an outer pull rod 351 and an inner pull rod 352. The outer pull rod 351 is inclined, and the locking teeth 39 are disposed on the outer side of the outer pull rod 351 and continuously arranged along the length direction of the outer pull rod 351. The upper end of the outer pull rod 351 is rotatably connected to the lower end of the top rod 33, and the lower end is fixedly connected to the outer end of the inner pull rod 352. The inner end of the inner pull rod 352 is rotatably connected to the lower end of the elastic member 34.

[0056] like Figure 1-8 As shown, an embodiment of the present invention provides an inverted creep tack fastening device 100. When applied to the installation of a sheet metal 300, multiple inverted creep tack fastening devices 100 are required.

[0057] A blind mounting hole 301 is made on the back of the plate 300. The blind mounting hole 301 is shaped like a frustum with a narrow top and a wide bottom. An inverted creep-lock fastening device 100 is arranged above each blind mounting hole 301. The upper suspension member 1 of each inverted creep-lock fastening device 100 is clamped to the structural beam 200. The extension section 35 at the lower end of the creep-lock mechanism 3 of each inverted creep-lock fastening device 100 is placed in the blind mounting hole 301. First, the outer cylinder 31 is adjusted to move down so that each extension section 35 is kept in a contracted state so that it can be smoothly inserted into the blind mounting hole 301. Then, the outer cylinder 31 is adjusted to move up so that each extension section 35 unfolds and locks into the blind mounting hole 301. Under the restriction of the blind mounting hole 301, each extension section 35 is firmly locked into the blind mounting hole 301 and cannot be separated, thus realizing the installation of the plate 300. When it is necessary to disassemble the plate 300, simply adjust the outer cylinder 31 to move it down so that each extension joint 35 is kept in a retracted state, and each extension joint 35 can be taken out from the mounting blind hole 301. Disassembly is convenient and will not damage the plate 300.

[0058] In this document, the directional terms such as front, back, top, and bottom are defined based on the position of the components in the accompanying drawings and their relative positions to each other, solely for the purpose of clarity and convenience in expressing the technical solution. It should be understood that these are relative concepts and can vary depending on different methods of use and placement; the use of these directional terms should not limit the scope of protection claimed in this application.

[0059] Where there is no conflict, the embodiments and features described above can be combined with each other. The above descriptions are merely preferred embodiments of the present invention and are not intended to limit the invention. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An inverted creep-lock fastening device, characterized in that, include: The upper suspension component can be connected to the structural beam at its upper end; A locking mechanism includes an upper locking member and a lower locking member. The upper locking member has forward hooks on both sides, and the lower locking member has reverse hooks on both sides. The upper locking member and the lower locking member are engaged with each other, and the two forward hooks are engaged with the two reverse hooks respectively. The outer cylinder includes an outer cylinder, an adjusting nut, a push rod, an elastic element, and multiple extension sections. The upper end of the outer cylinder slidably passes through the lower locking element and is connected to the adjusting nut. The push rod is disposed inside the outer cylinder and its upper end is connected to the lower locking element, and its lower end is connected to the elastic element. The outer cylinder is disposed around the elastic element. Each extension section is arranged in a cone shape with a larger upper diameter and a smaller lower diameter. The upper end of each extension section is rotatably connected to the lower end of the push rod, and its lower end is rotatably connected to the lower end of the elastic element. The outer surface of each extension section is provided with locking teeth, and the lower end of the outer cylinder abuts against the locking teeth of each extension section.

2. The inverted creep-lock fastening device as described in claim 1, characterized in that: The extension joint is a V-shaped connecting rod.

3. The inverted creep-lock fastening device as described in claim 2, characterized in that: The extension joint includes an outer tie rod and an inner tie rod. The outer tie rod is inclined. The locking teeth are disposed on the outer side of the outer tie rod and are continuously disposed along the length of the outer tie rod. The upper end of the outer tie rod is rotatably connected to the lower end of the top rod, and the lower end is fixedly connected to the outer end of the inner tie rod. The inner end of the inner tie rod is rotatably connected to the lower end of the elastic element.

4. The inverted creep-lock fastening device as described in claim 1, characterized in that: The elastic element is a spring.

5. The inverted creep-lock fastening device as described in claim 1, characterized in that: The upper locking member includes a first upper horizontal plate, a second upper horizontal plate, a third upper horizontal plate, a first upper vertical plate, a second upper vertical plate, and a third upper vertical plate. The upper end of the first upper vertical plate is connected to the upper hanging member, the middle part is connected to the first upper horizontal plate, and the lower end is connected to the second upper horizontal plate. The two ends of the second upper horizontal plate are respectively connected to the upper end of the second upper vertical plate and the upper end of the third upper vertical plate. The lower end of the second upper vertical plate is connected to one end of the third upper horizontal plate, and the other end of the third upper horizontal plate extends toward the third upper vertical plate. The lower locking member includes a first lower horizontal plate, a second lower horizontal plate, a third lower horizontal plate, a first lower vertical plate, a second lower vertical plate, and a third lower vertical plate. The middle part of the first lower horizontal plate is connected to the lower end of the first lower vertical plate, and one end is connected to one end of the third lower vertical plate. The upper end of the first lower vertical plate is connected to one end of the second lower horizontal plate. The other end of the second lower horizontal plate extends away from the third lower vertical plate and is connected to the lower end of the second lower vertical plate. The upper end of the third lower vertical plate is connected to one end of the third lower horizontal plate, and the other end of the third lower horizontal plate extends toward the second lower vertical plate. The third lower horizontal plate can be inserted between the first upper horizontal plate and the second upper horizontal plate, and the third upper horizontal plate can be inserted between the first lower horizontal plate and the second lower horizontal plate, so that the upper locking member and the lower locking member are engaged.

6. The inverted creep-lock fastening device as described in claim 5, characterized in that: The second upper horizontal plate has the hook on the upper surface below the first upper horizontal plate, and the third upper horizontal plate has the hook on the upper surface. The lower surface of the second lower horizontal plate is provided with the reverse hook, and the lower surface of the third lower horizontal plate is provided with the reverse hook; The hook on the second upper horizontal plate engages with the hook on the third lower horizontal plate, and the hook on the third upper horizontal plate engages with the hook on the second lower horizontal plate.

7. An inverted creep-lock fastening device as described in claim 5 or 6, characterized in that: The inner wall at the connection between the upper end of the second upper vertical plate and the second upper horizontal plate is provided with concave teeth, and the upper end of the second lower vertical plate is provided with convex teeth, the convex teeth being able to engage with the concave teeth; The inner wall of the connection between the lower end of the third lower vertical plate and the first lower horizontal plate is provided with concave teeth, and the lower end of the third upper vertical plate is provided with convex teeth, which can engage with the concave teeth.

8. The inverted creep-lock fastening device as described in claim 5, characterized in that: The upper end of the outer cylinder passes through the first lower horizontal plate, and the adjusting nut is placed on the first lower horizontal plate and locks the upper end of the outer cylinder.

9. The inverted creep-lock fastening device as described in claim 1, characterized in that: The upper suspension component includes a suspension plate and a lower clamping plate. The suspension plate includes an upper fixed clamping plate and a side baffle perpendicularly connected to the upper fixed clamping plate. The lower clamping plate includes a lower movable clamping plate and a side connecting plate perpendicularly connected to the lower movable clamping plate. The side baffle is provided with a plurality of adjustment holes spaced apart along the vertical direction. The side connecting plate is attached to the side baffle and connected to the adjustment holes by adjustment bolts. The upper fixed clamping plate and the lower movable clamping plate can clamp the structural beam.

10. The inverted creep-lock fastening device as described in claim 9, characterized in that: Both the lower surface of the upper fixed clamping plate and the upper surface of the lower movable clamping plate are provided with teeth.

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