An anti-falling fastener with loosening alarm function

Abstract

The present invention discloses an anti-falling fastener with a loosening alarm function, belonging to the technical field of anti-falling fasteners. In order to solve the problem that traditional fasteners are inconvenient to fasten two square tubular objects without drilling holes, and traditional fasteners are inconvenient to adapt to tubular objects with different diameters or tubular objects with different diameters by deforming the fasteners, but need to replace different types of fasteners, which makes the fastening work more difficult; the present application removes two groups of locking bolts, separates the first movable plate and the second movable plate, and reveals the space enclosed by the two groups of first and second plates, and this space is used to embed the structure that needs to be fastened.

Description

Technical Field

[0001] The invention relates to the technical field of anti-falling fasteners, in particular to an anti-falling fastener with a loosening alarm function. Background Art

[0002] Fasteners are a widely used type of mechanical parts used for fastening connections. They are characterized by a wide variety of specifications and performance, as well as a high degree of standardization, serialization, and universality. Therefore, some people refer to fasteners with established national standards as standard fasteners, or simply standard parts. Different types of fasteners are required to fasten different types of objects, and slight differences exist between objects of the same type. Therefore, a fastener fastening two identical objects together can become disengaged due to these differences.

[0003] Conventional fasteners are not convenient for fastening two square tubular objects without drilling holes in the two objects. Furthermore, when fastening tubular objects of different diameters, conventional fasteners are not convenient for adapting to tubular objects of different diameters or tubular objects of the same diameter but with different diameters by deforming the fasteners. Instead, different types of fasteners need to be replaced, making the fastening work more difficult.

[0004] In order to solve the above problems, an anti-falling fastener with a loosening alarm function is proposed. Summary of the Invention

[0005] The object of the present invention is to provide an anti-falling fastener with a loosening alarm function, which solves the problem that traditional fasteners in the background technology are not convenient for fastening two square tubular objects without drilling holes in the two objects, and traditional fasteners are not convenient for fastening tubular objects of different diameters by deforming the fasteners to adapt to tubular objects of different diameters or tubular objects of the same diameter but with different diameters. Instead, different types of fasteners need to be replaced, making the fastening work more difficult.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: an anti-falling fastener with a loosening alarm function, comprising a first fastening assembly, wherein guide posts and adjustment assemblies are provided at the four corners of the lower end of the first fastening assembly, and the guide posts and adjustment assemblies are provided in at least one set, a second fastening assembly is further provided at the lower end of the first fastening assembly, and the second fastening assembly and the first fastening assembly are components made of the same structure, the first fastening assembly and the second fastening assembly are connected via the guide posts and the adjustment assemblies, one end of the guide post is embedded in the interior of the first fastening assembly, and the other end is embedded in the interior of the second fastening assembly, one end of the adjustment assembly is fixedly connected to the first fastening assembly, and the other end of the adjustment assembly is fixedly connected to the second fastening assembly, an infrared sensor and an alarm light are provided at the lower end of the second fastening assembly, and the infrared sensor and the alarm light are electrically connected;

[0007] The first fastening assembly includes a first component plate and a second component plate movably arranged on one side of the first component plate. The first component plates are arranged in two groups, and the first component plates of the two groups are movably connected to the second component plates. The first movable plate is movably arranged on one side of the first component plate of one group, and the second movable plate is movably arranged on one side of the first component plate of the other group. The first movable plate and the second movable plate are internally threadedly connected and provided with locking bolts, and the locking bolts are arranged in two groups. By removing the locking bolts of the two groups, the first movable plate and the second movable plate are separated, revealing the space enclosed by the first component plates and the second component plates of the two groups, which is used to embed the structure that needs to be fastened.

[0008] Furthermore, a pushing plate is movably fitted inside the first group of plates, the first group of plates of the two groups are arranged horizontally and parallel, the pushing plates of the two groups are arranged opposite to each other, and a reeling and unreeling adjustment mechanism is provided inside the first group of plates of one group, the reeling and unreeling adjustment mechanism of the two groups is provided inside the first group of plates, a tight mechanism is provided inside the second group of plates, and a tight mechanism is also provided inside the first group of plates of the two groups, and a pushing plate is also provided inside the second group of plates, the tight mechanism is used to control the pushing plate, and the first group of plates of the two groups and the second group of plates of one group both control the pushing plates through the tight mechanism.

[0009] Furthermore, the tightening mechanism includes a first screwing column and a first fixing bar arranged on the outside of the first screwing column, a first threaded column is arranged on the outside of one end of the first screwing column, and the first threaded column is threadedly arranged inside the second component plate, one end of the first threaded column is movably connected to the pushing plate, and the other end is provided with a pulley.

[0010] Furthermore, a second threaded column is provided on one side of the first threaded column, and the first threaded column and the second threaded column are components made of the same structure. One end of the second threaded column is movably connected to the pushing plate, and the other end is connected to the pulley through a belt. The first screwing column and one end of the first fixing bar are embedded in the first threaded column.

[0011] Furthermore, the adjustment assembly includes a forward threaded column fixedly arranged at the lower end of the first fastening assembly and a reverse threaded column fixedly arranged at the upper end of the second fastening assembly, and one end of the forward threaded column and the reverse threaded column are both threadedly arranged inside the threaded shell.

[0012] Furthermore, the thread directions of the forward threaded column and the reverse threaded column are opposite, the upper end of the threaded shell is provided with a thread matching the forward threaded column, and the lower end of the threaded shell is provided with a thread matching the reverse threaded column.

[0013] Furthermore, component cavities are opened inside both sides of the first group of plates, one side of the component cavity is opened and closed with a limit groove, and the reeling and unreeling adjustment mechanism includes a reeling wheel movably arranged inside the component cavity.

[0014] Furthermore, two groups of winding wheels are provided, and the two groups of winding wheels are connected by an axis, a chain is provided for winding on the outer side of the winding wheel, one end of the chain close to the first movable plate is fixedly connected to the first movable plate, one end of the first group of plates of the two groups is connected to the first movable plate and the second movable plate through a chain, and the other end of the first group of plates of the two groups is connected to the second group of plates through a chain, and a group of latch locking mechanisms is provided on one side of each two groups of winding wheels in the vertical direction.

[0015] Furthermore, the latch locking mechanism includes a second screwing head and a second fixing bar arranged on the outside of the second screwing head, a movable column is arranged on the outside of one end of the second screwing head and the second fixing bar, and the movable column is movably arranged inside the first fastening component, an internal thread of one end of the movable column is provided with an engaging column, and a limiting flat head column is provided at one end of the engaging column, the limiting flat head column is embedded in the first fastening component, and the limiting flat head column matches the chain gap.

[0016] Furthermore, an inner cavity is opened inside the winding wheel, and a fixed inner shaft is arranged inside the winding wheel, one end of the fixed inner shaft is fixedly connected to the inner wall of the component cavity, and a connecting spring is arranged inside the inner cavity, one end of the connecting spring is fixedly connected to the outer side of the fixed inner shaft, and the other end of the connecting spring is fixedly connected to the inner wall of the inner cavity.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention provides an anti-falling fastener with a loosening alarm function. In this application, by removing two groups of locking bolts, the first movable plate and the second movable plate are separated, revealing the space enclosed by the two groups of first and second plates. This space is used to embed the structure that needs to be fastened, thereby solving the problem that traditional fasteners are inconvenient to fasten the two square tubular objects without drilling holes in them, and traditional fasteners are inconvenient to deform the fasteners when fastening tubular objects of different diameters to adapt to tubular objects of different diameters or tubular objects of the same diameter but with different diameters. Instead, different types of fasteners need to be replaced, making the fastening work more difficult. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic structural diagram of the first fastening assembly of the present invention;

[0021] Figure 3 It is a schematic diagram of the front planar structure of the pushing plate and the compacting mechanism of the present invention;

[0022] Figure 4 This is a schematic diagram of the compact mechanism structure of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of the regulating component of the present invention;

[0024] Figure 6 It is a schematic side plan view of the first component plate, the second component plate and the first movable plate of the present invention;

[0025] Figure 7 It is a schematic diagram of the front plan structure of the latch locking mechanism and the winding wheel of the present invention;

[0026] Figure 8 It is a schematic structural diagram of the latch locking mechanism of the present invention;

[0027] Figure 9 It is a schematic diagram of the planar structure of the winding wheel of the present invention.

[0028] In the figure: 1. First fastening assembly; 11. First component plate; 111. Component cavity; 112. Limiting groove; 12. Second component plate; 13. First movable plate; 14. Second movable plate; 15. Pushing plate; 16. Tightening mechanism; 161. First screwing post; 162. First threaded post; 1621. Pulley; 163. First fixing bar; 164. Second threaded post; 17. Rewinding and unwinding adjustment mechanism; 171. Rewinding wheel; 1711. Fixed inner shaft; 1712. Inner cavity; 1713. Connecting spring; 172. Chain; 173. Latch locking mechanism; 1731. Second screwing head; 1732. Second fixing bar; 1733. Movable column; 1734. Engaging column; 1735. Limiting flat head column; 18. Locking bolt; 2. Second fastening assembly; 3. Guide column; 4. Adjustment assembly; 41. Threaded housing; 42. Forward threaded column; 43. Reverse threaded column; 5. Infrared sensor; 6. Alarm light. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] In order to solve the technical problem that traditional fasteners are not convenient for fastening two square tubular objects without drilling holes, such as Figure 1-Figure 5 As shown, the following preferred technical solutions are provided:

[0031] An anti-fall-off fastener with a loosening alarm function, comprising a first fastening component 1, wherein guide columns 3 and adjustment components 4 are provided at the four corners of the lower end of the first fastening component 1, and the guide columns 3 and adjustment components 4 are provided in at least one group, and a second fastening component 2 is further provided at the lower end of the first fastening component 1, and the second fastening component 2 and the first fastening component 1 are components made of the same structure, the first fastening component 1 and the second fastening component 2 are connected by the guide columns 3 and the adjustment components 4, one end of the guide column 3 is embedded in the first fastening component 1, and the other end is embedded in the second fastening component Inside the component 2, one end of the adjustment component 4 is fixedly connected to the first fastening component 1, and the other end of the adjustment component 4 is fixedly connected to the second fastening component 2. The lower end of the second fastening component 2 is provided with an infrared sensor 5 and an alarm light 6, and the infrared sensor 5 and the alarm light 6 are electrically connected. The first fastening component 1 includes a first component plate 11 and a second component plate 12 movably provided on one side of the first component plate 11. The first component plate 11 is provided in two groups, and the first component plates 11 of the two groups are movably connected to the second component plate 12. One side of the first component plate 11 of one group is movably provided with a first movable plate. The first movable plate 13 is provided with a second movable plate 14 on one side of the first movable plate 11 of the other group. The first movable plate 13 and the second movable plate 14 are internally threadedly connected and provided with a locking bolt 18. There are two sets of locking bolts 18. By removing the locking bolts 18 of the two groups, the first movable plate 13 and the second movable plate 14 are separated, revealing the space enclosed by the first and second movable plates 11 and 12 of the two groups. This space is used to embed the structure that needs to be fastened. The first movable plate 11 is internally movably engaged with a pushing plate 15. The first movable plates 11 of the two groups are horizontally level. The two groups of pushing plates 15 are arranged opposite to each other, and the first group of plates 11 are each provided with a reeling and unreeling adjustment mechanism 17. The first group of plates 11 of one group are each provided with two groups of reeling and unreeling adjustment mechanisms 17. The second group of plates 12 are provided with a tight mechanism 16. The first group of plates 11 of the two groups are also provided with a tight mechanism 16. The second group of plates 12 are also provided with a pushing plate 15. The tight mechanism 16 is used to control the pushing plate 15. The first group of plates 11 of the two groups and the second group of plates 12 of one group both control the pushing plate 15 through the tight mechanism 16.

[0032] The tightening mechanism 16 includes a first screwing column 161 and a first fixing bar 163 arranged on the outside of the first screwing column 161, a first threaded column 162 is arranged on the outside of one end of the first screwing column 161, and the first threaded column 162 is threadedly arranged inside the second component plate 12, one end of the first threaded column 162 is movably connected to the pushing plate 15, and the other end is provided with a pulley 1621, a second threaded column 164 is provided on one side of the first threaded column 162, and the first threaded column 162 and the second threaded column 164 are components made of the same structure, one end of the second threaded column 164 is movably connected to the pushing plate 15, and the other end is connected to the pulley through a belt. The pulley 1621 is connected for transmission, and one end of the first screwing column 161 and the first fixing bar 163 is embedded in the first threaded column 162. The adjustment component 4 includes a forward threaded column 42 fixedly arranged at the lower end of the first fastening component 1 and a reverse threaded column 43 fixedly arranged at the upper end of the second fastening component 2. One end of the forward threaded column 42 and the reverse threaded column 43 are both threadedly arranged inside the threaded shell 41. The thread directions of the forward threaded column 42 and the reverse threaded column 43 are opposite. The upper end of the threaded shell 41 is provided with a thread that matches the forward threaded column 42, and the lower end of the threaded shell 41 is provided with a thread that matches the reverse threaded column 43.

[0033] Specifically, by removing the locking bolt 18, the first movable plate 13 and the second movable plate 14 are separated, and the space enclosed by the two groups of first and second plates 11 and 12 is revealed. Since the first fastening assembly 1 and the second fastening assembly 2 are components made of the same structure, the second fastening assembly 2 can also reveal the same space. At this time, the first fastening assembly 1 is embedded in the outside of one group of tubular objects, and the second fastening assembly 2 is embedded in the outside of the other group of tubular objects, and the two groups of tubular objects are docked. At this time, the movable first movable plate 13 and the second movable plate are connected. The plate 14 is fixed by the threaded connection of the locking bolt 18, that is, the first fastening assembly 1 and the second fastening assembly 2 are located outside the joint of the two sets of tubular objects. When the diameters of the two sets of tubular objects are equal to or smaller than the enclosed space of the first fastening assembly 1 and the second fastening assembly 2, the first screwing column 161 is taken out and the first screwing column 161 is screwed to rotate the first threaded column 162. At this time, due to the setting of the pulley 1621, the rotation of the first threaded column 162 will drive the rotation of the second threaded column 164, that is, the first threaded column 16 2 and the second threaded column 164 push the pushing plate 15 to move toward the tubular object until it squeezes the outer wall of the tubular object. The pushing plates 15 set in the two groups of first group plates 11 and the one group of second group plates 12 are all operated through this operation, so that the first fastening component 1 and the second fastening component 2 are fixed to the outside of the two groups of tubular objects. At this time, the two groups of tubular objects are fastened, and the two form a whole with the first fastening component 1 and the second fastening component 2. By rotating the threaded shell 41, the positive threaded column 42 and the reverse threaded column 43 are retracted into the inside of the threaded shell 41, or the positive threaded column 42 and the reverse threaded column 43 are extended out of the threaded shell 41, that is, the length of the adjustment component 4 is changed. The three groups of guide columns 3 play a guiding role, thereby changing the distance between the first fastening component 1 and the second fastening component 2, so as to adapt to the fastening of different objects. Because the infrared sensor 5 and the alarm light 6 are electrically connected, the infrared sensor 5 can detect the distance from the ground. When the entire fastener is detached from the pendant, the distance detected by the infrared sensor 5 changes, and then the electrical signal sends a light warning to the alarm light 6.

[0034] In order to solve the technical problem that traditional fasteners are not convenient for fastening tubular objects of different diameters by deforming the fasteners to adapt to tubular objects of different diameters or tubular objects with different diameters, different types of fasteners need to be replaced, making the fastening work more difficult, such as Figure 6-Figure 9 As shown, the following preferred technical solutions are provided:

[0035] A component cavity 111 is opened inside the two sides of the first group of plates 11, and a limit groove 112 is opened and closed on one side of the component cavity 111. The reeling and unreeling adjustment mechanism 17 includes a reeling wheel 171 movably arranged inside the component cavity 111. Two groups of reeling wheels 171 are provided, and the reeling wheels 171 of the two groups are connected by an axis. A chain 172 is provided for reeling on the outside of the reeling wheels 171. One end of the chain 172 close to the side of the first movable plate 13 is fixedly connected to the first movable plate 13. One end of the first group of plates 11 of the two groups is connected to the first movable plate 13 and the second movable plate 14 through the chain 172, and the other end of the first group of plates 11 of the two groups is connected to the second group of plates 12 through the chain 172. A group of latch locking mechanisms 173 is provided on one side of each two groups of reeling wheels 171 in the vertical direction. The latch locking mechanism 173 includes a second screwing head 1731 and a screwing head provided outside the second screwing head 1731. The second fixing bar 1732 on the side, the second screwing head 1731 and the second fixing bar 1732 are provided with a movable column 1733 on the outside of one end, and the movable column 1733 is movably arranged inside the first fastening component 1, and an internal thread of the movable column 1733 is provided with a fitting column 1734, and one end of the fitting column 1734 is provided with a limited flat head column 1735, which is fitted inside the first fastening component 1, and the limited flat head column 1735 matches the gap of the chain 172, and an inner cavity 1712 is opened inside the winding wheel 171, and a fixed inner shaft 1711 is provided inside the winding wheel 171, and one end of the fixed inner shaft 1711 is fixedly connected to the inner wall of the component cavity 111, and a connecting spring 1713 is provided inside the inner cavity 1712, and one end of the connecting spring 1713 is fixedly connected to the outer side of the fixed inner shaft 1711, and the other end of the connecting spring 1713 is fixedly connected to the inner wall of the inner cavity 1712.

[0036] Specifically, the movement of the first movable plate 13 and the second movable plate 14 is to first remove the locking bolt 18, and then take out the second screw head 1731 to drive the second fixing bar 1732 and the movable column 1733 to rotate, so that the interlocking column 1734 and the limiting flat head column 1735 are away from the gap of the chain 172. At this time, the winding wheel 171 can freely rewind the chain 172, and the first movable plate 13 and the second movable plate 14 are respectively connected to the two groups of first component plates 11 through the chain 172. At this time, the first movable plate 13 and the second movable plate 14 are movable, and the unwinding of the chain 172 will bring The winding wheel 171 rotates, and at the same time as the winding wheel 171 rotates, because the fixed inner shaft 1711 is fixedly connected, the connecting spring 1713 rotates itself when both ends are fixed, so that the connecting spring 1713 is compressed. Therefore, the function of the connecting spring 1713 is to reel the chain 172 to the outside of the winding wheel 171 without external force. When the diameters of the two groups of tubular objects are larger than the enclosed space of the first fastening component 1 and the second fastening component 2, by screwing the four groups of second screwing heads 1731, the four groups of limiting flat head columns 1735 are away from the gaps of the corresponding groups of chains 172. That is, the state of the fastener at this time is that the first movable plate 13, the second movable plate 14 and the two groups of first group plates 11 are connected by the chain 172, and the two groups of first group plates 11 and the second group plates 12 are connected by the chain 172. When multiple groups of chains 172 are exposed, the enclosed space of the first fastening component 1 and the second fastening component 2 will be changed, so that the first fastening component 1 and the second fastening component 2 are located outside different tubular objects. First, the second screwing head 1731 is screwed to make the limiting flat head column 1735 fit into the gap inside the corresponding chain 172 to limit the winding wheel 1 71 rotates, thereby tightening the first fastening component 1 and the second fastening component 2, so that the inner walls of the first fastening component 1 and the second fastening component 2 are tightly fitted with the outer wall of the tubular object. If there is still a gap, it is tightened again through the cooperation of the tight mechanism 16 and the pushing plate 15, so that tubular objects of different types of diameters or with different diameters are connected and tightened. Because the first fastening component 1 and the second fastening component 2 are deformed by the winding and unwinding of the chain 172, that is, the first movable plate 13, the second movable plate 14, the second component plate 12 and the two groups of first component plates 11 will always be on the same horizontal plane.

[0037] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0038] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An anti-loosening fastener with a loosening alarm function, comprising a first fastening component (1), characterized in that: Guide columns (3) and adjustment components (4) are provided at the four corners of the lower end of the first fastening component (1), and at least one group of the guide columns (3) and adjustment components (4) is provided. A second fastening component (2) is also provided at the lower end of the first fastening component (1), and the second fastening component (2) and the first fastening component (1) are components made of the same structure. The first fastening component (1) and the second fastening component (2) are connected through the guide columns (3) and the adjustment components (4). One end of the guide column (3) is embedded in the first fastening component (1), and the other end is embedded in the second fastening component (2). One end of the adjustment component (4) is fixedly connected to the first fastening component (1), and the other end of the adjustment component (4) is fixedly connected to the second fastening component (2). An infrared sensor (5) and an alarm light (6) are provided at the lower end of the second fastening component (2), and the infrared sensor (5) and the alarm light (6) are electrically connected. The first fastening assembly (1) includes a first component plate (11) and a second component plate (12) movably arranged on one side of the first component plate (11), the first component plate (11) is provided in two groups, and the first component plates (11) of the two groups are movably connected to the second component plate (12), one side of the first component plate (11) of one group is movably provided with a first movable plate (13), and the other side of the first component plate (11) of the other group is movably provided with a second movable plate (14), the first movable plate (13) and the second movable plate (14) are internally threadedly connected and provided with locking bolts (18), and the locking bolts (18) are provided in two groups, and by removing the locking bolts (18) of the two groups, the first movable plate (13) and the second movable plate (14) are separated, revealing a space enclosed by the first component plates (11) and the second component plates (12) of the two groups, and the space is used to embed a structure to be fastened; The first group of plates (11) are all provided with a reeling and unreeling adjustment mechanism (17) inside. One group of the first group of plates (11) is provided with two groups of reeling and unreeling adjustment mechanisms (17) inside. The second group of plates (12) is provided with a tight mechanism (16) inside. The reeling and unreeling adjustment mechanism (17) includes a reeling wheel (171) movably provided inside the component cavity (111). Two groups of reeling wheels (171) are provided, and the two groups of reeling wheels (171) are connected by a shaft. A chain (172) is provided on the outside of the reeling wheel (171) for reeling. One end of the chain (172) close to the side of the first movable plate (13) is fixedly connected to the first movable plate (13).

2. The anti-loosening fastener with a loosening alarm function according to claim 1, characterized in that: The first group of plates (11) is provided with a pushing plate (15) in a movable engagement therewith. The first group of plates (11) of the two groups are arranged horizontally and in parallel. The pushing plates (15) of the two groups are arranged opposite to each other. A tight mechanism (16) is also provided inside the first group of plates (11) of the two groups. A pushing plate (15) is also provided inside the second group of plates (12). The tight mechanism (16) is used to control the pushing plate (15). The first group of plates (11) of the two groups and the second group of plates (12) of one group both control the pushing plate (15) through the tight mechanism (16).

3. The anti-fall-off fastener with a loosening alarm function according to claim 2, characterized in that: The tightening mechanism (16) includes a first screwing column (161) and a first fixing bar (163) arranged outside the first screwing column (161); a first threaded column (162) is arranged outside one end of the first screwing column (161), and the first threaded column (162) is threadedly arranged inside the second component plate (12); one end of the first threaded column (162) is movably connected to the pushing plate (15), and the other end is provided with a pulley (1621).

4. The anti-loosening fastener with a loosening alarm function according to claim 3, characterized in that: A second threaded column (164) is provided on one side of the first threaded column (162), and the first threaded column (162) and the second threaded column (164) are components made of the same structure. One end of the second threaded column (164) is movably connected to the pushing plate (15), and the other end is connected to the pulley (1621) through a belt. One end of the first screwing column (161) and the first fixing bar (163) are embedded in the first threaded column (162).

5. The anti-fall-off fastener with a loosening alarm function according to claim 1, characterized in that: The adjustment assembly (4) comprises a forward threaded column (42) fixedly arranged at the lower end of the first fastening assembly (1) and a reverse threaded column (43) fixedly arranged at the upper end of the second fastening assembly (2); one end of the forward threaded column (42) and the reverse threaded column (43) are both threadedly arranged inside the threaded housing (41).

6. The anti-fall-off fastener with a loosening alarm function according to claim 5, characterized in that: The threads of the forward threaded column (42) and the reverse threaded column (43) are in opposite directions. The upper end of the threaded housing (41) is provided with a thread matching the forward threaded column (42), and the lower end of the threaded housing (41) is provided with a thread matching the reverse threaded column (43).

7. The anti-fall-off fastener with a loosening alarm function according to claim 2, characterized in that: Component cavities (111) are provided inside both sides of the first component plate (11), and a limiting groove (112) is opened and closed on one side of the component cavity (111).

8. The anti-fall-off fastener with a loosening alarm function according to claim 1, characterized in that: One end of the first component plate (11) of the two groups is connected to the first movable plate (13) and the second movable plate (14) through a chain (172), and the other end of the first component plate (11) of the two groups is connected to the second component plate (12) through a chain (172). A group of latch locking mechanisms (173) is provided on one side of the reeling wheels (171) in the vertical direction of each two groups.

9. The anti-fall-off fastener with a loosening alarm function according to claim 8, characterized in that: The latch locking mechanism (173) comprises a second screwing head (1731) and a second fixing bar (1732) arranged outside the second screwing head (1731); a movable column (1733) is arranged outside one end of the second screwing head (1731) and the second fixing bar (1732); the movable column (1733) is movably arranged inside the first fastening assembly (1); an internal thread of an engaging column (1734) is arranged on one end of the movable column (1733); a limited flat head column (1735) is arranged on one end of the engaging column (1734); the limited flat head column (1735) is engaged inside the first fastening assembly (1); and the limited flat head column (1735) matches the gap between the chain (172).

10. The anti-fall-off fastener with a loosening alarm function according to claim 9, characterized in that: An inner cavity (1712) is provided inside the winding wheel (171), and a fixed inner shaft (1711) is provided inside the winding wheel (171), one end of the fixed inner shaft (1711) is fixedly connected to the inner wall of the component cavity (111), and a connecting spring (1713) is provided inside the inner cavity (1712), one end of the connecting spring (1713) is fixedly connected to the outer side of the fixed inner shaft (1711), and the other end of the connecting spring (1713) is fixedly connected to the inner wall of the inner cavity (1712).

Images