Suspended ceiling suspender screwing device

Abstract

The utility model relates to the technical field of suspended ceiling suspender construction, and discloses a suspended ceiling suspender screwing device which comprises an adapter, a sleeve assembly and a torsion bar, the adapter is detachably installed at one end of the sleeve assembly, and the other end of the sleeve assembly is arranged on the torsion bar in a sleeved mode. The conversion head is used for placing a nut, and the torsion bar is rotated to drive the conversion head to rotate, so that the nut is screwed on the suspended ceiling suspender; a first thread is formed on the outer wall of the adapter, a second thread is formed on the inner wall of one end of the sleeve assembly, and the first thread is matched with the second thread, so that the adapter is detachably mounted at one end of the sleeve assembly; a first through hole is further formed in the bolt and the adapter, a second through hole is further formed in one end of the sleeve assembly, and the bolt can penetrate through the first through hole and the second through hole so that the adapter can be detachably fixed to one end of the sleeve assembly. According to the utility model, the adapter, the sleeve assembly and the torsion bar are designed to be matched, so that a constructor can finish the nut screwing work of the suspended ceiling suspender on the ground or at a lower position.

Description

TECHNICAL FIELD

[0001] The utility model relates to a suspended ceiling suspender construction technical field especially relates to a suspended ceiling suspender tightening device. BACKGROUND

[0002] In modern building decoration and construction, the installation of the suspended ceiling system is an indispensable link, which not only concerns the aesthetics of indoor space, but also directly affects the stability and safety of the building structure. As a key supporting component of the suspended ceiling system, the installation process of the suspender is particularly important. However, the traditional installation method of the suspender and the explosion bolt (a commonly used fastener fixed in the hole through the expansion principle) usually involves punching in the preset position, and the construction personnel need to stand on the ladder to work. This kind of high-altitude operation method itself has certain safety risk, especially when the floor height is generally more than 3 meters.

[0003] In addition, due to the wide and dense distribution of suspended ceiling installation points, the construction personnel need to frequently move the ladder or build temporary operation platform to adapt to the installation requirements of different positions, which not only greatly reduces the construction efficiency, but also increases the physical consumption and time cost in the construction process. Frequent movement of the ladder or operation platform not only consumes a lot of manpower and material resources, but also may affect the stability of the installed components due to repeated position adjustment, increasing the workload of later maintenance and adjustment. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a suspended ceiling suspender tightening device to solve the problem that the construction personnel need to stand on the ladder to work in the traditional installation process of the suspender, which has safety risk and low efficiency.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A suspended ceiling suspender tightening device, comprising: a conversion head, a sleeve assembly and a torsion rod, the conversion head is detachably installed at one end of the sleeve assembly, and the other end of the sleeve assembly is sleeved on the torsion rod; the conversion head is used for placing a nut, and rotating the torsion rod can drive the conversion head to rotate, so that the nut is tightened on the suspended ceiling suspender; a first thread is formed on the outer wall of the conversion head, a second thread is formed on the inner wall of one end of the sleeve assembly, and the first thread and the second thread are matched, so that the conversion head is detachably installed at one end of the sleeve assembly; further comprising a bolt, the conversion head further forms a first through hole, and the one end of the sleeve assembly further forms a second through hole, the bolt can pass through the first through hole and the second through hole, so as to detachably fix the conversion head at one end of the sleeve assembly.

[0007] Based on the aforementioned technical means, this utility model, through the design of the adapter, sleeve assembly, and torsion bar, eliminates the need for construction workers to stand on A-frame ladders or operating platforms for high-altitude operations, thereby significantly reducing the risks associated with working at heights. Construction workers can operate the device from the ground or a lower position, effectively reducing the possibility of accidental falls and improving construction safety. Simultaneously, because this utility model allows construction workers to operate directly on the ground without frequently moving A-frame ladders or operating platforms, it significantly improves construction efficiency. Construction workers can quickly and accurately tighten the nuts on the ceiling hangers, reducing physical exertion and time costs, and facilitating faster project progress.

[0008] This invention utilizes the threaded connection between the adapter and the sleeve assembly, along with the detachable bolt design, to facilitate easy maintenance and replacement of the adapter. Furthermore, the specifications of the adapter and sleeve assembly can be adjusted to accommodate various ceiling installation needs by adapting to different sizes and types of ceiling hangers and nuts.

[0009] Furthermore, a channel is formed on the adapter head, and the channel extends along the axial direction of the adapter head; the radial cross-sectional shape of the channel is adapted to the nut so that the nut can be placed in the channel, thereby enabling the adapter head to drive the nut to rotate.

[0010] Based on the aforementioned technical methods, the radial cross-sectional shape of the channel is adapted to the nut, ensuring that the nut can be stably placed within the channel and is not prone to slippage or misalignment. The adapter directly drives the nut to rotate through the channel, reducing installation errors caused by nut instability. With the nut confined within the channel, installers do not need to apply additional force to maintain its position while rotating, allowing them to focus more on rotating the torsion bar and thus speeding up the installation process.

[0011] Furthermore, a first limiting block is formed on the conversion head. The first limiting block is located within the channel and is used to abut against the nut to prevent the nut from being misaligned.

[0012] Based on the above technical means, the first limiting block, as a physical barrier, effectively prevents the nut from moving axially within the channel, thereby preventing misalignment of the nut during installation. The nut can always remain in the correct position, aligned with the thread of the ceiling hanger, thus improving the accuracy and reliability of the installation.

[0013] Meanwhile, the nut is confined within the space formed by the channel and the first limiting block, making it easier for construction workers to control the rotation and tightening process of the nut, reducing installation errors caused by human error, and improving the accuracy and consistency of installation.

[0014] Furthermore, the first limiting block is a ring structure, and the inner diameter of the first limiting block is smaller than the outer diameter of the nut to prevent the nut from being misaligned.

[0015] Based on the aforementioned technical means, the first limiting block of the annular structure can obstruct the nut from all directions, thereby effectively preventing any form of misalignment or tilting of the nut during installation. Because the inner diameter of the first limiting block is smaller than the outer diameter of the nut, the nut is tightly confined within the channel and cannot move axially freely. This allows construction personnel to more easily control the rotation and tightening process of the nut, thereby improving the accuracy and consistency of installation.

[0016] Furthermore, a first opening is formed on the side wall of the converter head. The first opening is arranged along the axial direction of the converter head and is connected to the channel. The first opening is used for the passage of the ceiling hanger.

[0017] According to the above-mentioned technical means, the first opening provides a direct channel for the ceiling hanger. After the nut is tightened on the ceiling hanger, the adapter moves downward to disengage the nut from the channel. At the same time, the adapter rotates to align the first opening with the ceiling hanger. Thus, the adapter can be easily removed from the ceiling hanger through the first opening without additional disassembly steps or tools, which improves the efficiency of the installation process and reduces labor costs.

[0018] Furthermore, the sleeve assembly includes a first sleeve and a second sleeve, the first sleeve being connected to the second sleeve, the adapter being detachably mounted on the first sleeve, and the second sleeve being sleeved on the torsion bar.

[0019] Furthermore, a second limiting block is formed on the side wall of the conversion head, the second limiting block being used to abut against the end of the first sleeve to prevent the conversion head from falling into the first sleeve.

[0020] Based on the aforementioned technical means, the main function of the second limiting block is to abut against the end of the first sleeve, thereby effectively preventing the adapter from accidentally falling into the first sleeve during operation. The limiting effect of the second limiting block ensures that the adapter is correctly positioned on the first sleeve during installation, helping to reduce installation errors and deviations, thus ensuring the stability and reliability of the adapter.

[0021] Furthermore, a second opening is formed on the side wall of the first sleeve. The second opening is arranged along the axial direction of the first sleeve and corresponds to the first opening, so that the ceiling hanger can pass through the second opening and the first opening and move out from the side of the converter head and the side of the first sleeve.

[0022] According to the aforementioned technical means, the second opening corresponds to the first opening and is arranged along the axial direction of the first sleeve, providing a direct passage for the ceiling hanger to move out from the side of the adapter and the side of the first sleeve. During installation or disassembly, construction workers can easily adjust the position of the adapter to allow the ceiling hanger to pass through the second and first openings, thus simplifying the operation process.

[0023] Furthermore, the first sleeve and the second sleeve are staggered to make the first sleeve and the second sleeve non-coaxial, thereby facilitating the removal of the ceiling hanger from the side of the adapter head and the side of the first sleeve.

[0024] Based on the aforementioned technical means, the staggered connection design creates a certain angular deviation between the first and second sleeves, providing space for the ceiling hanger to be moved out from the side of the adapter and the first sleeve. After installation, construction workers can easily adjust the position of the adapter or the first sleeve to smoothly move the ceiling hanger out from the side without complicated disassembly.

[0025] Furthermore, the torsion bar is a telescopic bar.

[0026] Based on the above technical features, the design of the telescopic rod allows the torsion bar to be adjusted in length according to actual needs, which helps to adapt to different ceiling hanger installation heights and positions, and improves the versatility and flexibility of the ceiling hanger tightening device.

[0027] The beneficial effects achieved by this utility model are:

[0028] 1. This utility model, through the design of the adapter, sleeve assembly, and torsion bar, eliminates the need for construction workers to stand on A-frame ladders or operating platforms for high-altitude operations, significantly reducing the risks associated with working at heights. Workers can operate the device from the ground or a lower position, effectively reducing the possibility of accidental falls and improving construction safety. Furthermore, because this utility model allows workers to operate directly from the ground without frequently moving A-frame ladders or operating platforms, it significantly improves construction efficiency. Workers can quickly and accurately tighten the nuts on the ceiling hangers, reducing physical exertion and time costs, and facilitating faster project progress.

[0029] 2. This utility model, through the threaded connection between the adapter and the sleeve assembly and the detachable design of the bolts, makes the adapter easy to maintain and replace. Furthermore, the specifications of the adapter and sleeve assembly can be adjusted according to different sizes and types of ceiling hangers and nuts to meet various ceiling installation needs. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the adapter structure of this utility model;

[0032] Figure 3 for Figure 2 A schematic diagram of the AA cross-sectional structure;

[0033] Figure 4 This is a schematic diagram of the sleeve assembly structure of this utility model;

[0034] Among them, 1 is the adapter; 11 is the first thread; 12 is the first through hole; 13 is the channel; 14 is the first limiting block; 15 is the first opening; and 16 is the second limiting block.

[0035] 2. Torsion bar;

[0036] 3. Nuts;

[0037] 4. Ceiling hangers;

[0038] 5. Bolts;

[0039] 6. First sleeve; 61. Second opening;

[0040] 7. Second sleeve.

[0041] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The same or similar reference numerals correspond to the same or similar components. The terms describing positional relationships in the drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. Detailed Implementation

[0042] It should be noted that, unless otherwise specified, the embodiments and technical features in the embodiments of this application can be combined with each other, and the detailed descriptions in the specific embodiments should be understood as explanations of the purpose of this application and should not be regarded as undue limitations on this application.

[0043] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the specific technical solutions of this application will be further described in detail below with reference to the accompanying drawings of the embodiments of this application. The following embodiments are used to illustrate this application, but are not intended to limit the scope of this application.

[0044] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0045] In the embodiments of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium.

[0046] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0047] The technical solution of this embodiment will be described in detail below with reference to the accompanying drawings.

[0048] like Figure 1 As shown, this embodiment proposes a ceiling hanger rod tightening device, including: a converter head 1, a sleeve assembly, and a torque bar 2. The converter head 1 is detachably mounted on one end of the sleeve assembly, and the other end of the sleeve assembly is sleeved on the torque bar 2. The converter head 1 is used to hold a nut 3. Rotating the torque bar 2 can drive the converter head 1 to rotate, so that the nut 3 is tightened on the ceiling hanger rod 4. A first thread 11 is formed on the outer wall of the converter head 1, and a second thread is formed on the inner wall of one end of the sleeve assembly. The first thread 11 and the second thread are adapted to each other so that the converter head 1 can be detachably mounted on one end of the sleeve assembly. It also includes a bolt 5, such as... Figure 3 As shown, the adapter 1 also has a first through hole 12, and a second through hole is formed on one end of the sleeve assembly. The bolt 5 can pass through the first through hole 12 and the second through hole to detachably fix the adapter 1 to one end of the sleeve assembly.

[0049] During actual construction, the adapter 1 needs to be installed on one end of the sleeve assembly. By rotating the adapter 1, the first thread 11 on its outer wall engages with the second thread on the inner wall of one end of the sleeve assembly. The adapter 1 is further secured using bolts 5. The bolts 5 are passed through the first through hole 12 of the adapter 1 and the second through hole of the sleeve assembly, and tightened appropriately to ensure that the adapter 1 does not loosen.

[0050] After drilling holes in the ceiling slab, install the ceiling hanger 4 into the holes and place a nut 3 at the appropriate position on the ceiling hanger 4. Ensure that the thread direction of the nut 3 matches the thread direction of the ceiling hanger 4. Align the adapter 1 of the assembled ceiling hanger tightening device with the nut 3 and ensure that the adapter 1 can rotate smoothly. Begin rotating the torque bar 2, which will rotate the adapter 1 and gradually tighten the nut 3 onto the ceiling hanger 4. Adjust the rotation force of the torque bar 2 to ensure that the nut 3 is firmly tightened onto the ceiling hanger 4, but without overtightening and causing damage.

[0051] Check that the installed ceiling hangers 4 are secure and ensure that the nuts 3 are not loose. If necessary, use a wrench or other tools to check and tighten the nuts 3 again to ensure their stability. Repeat the above steps until all ceiling hangers 4 are correctly installed and secured.

[0052] This embodiment, through the design of the adapter 1, sleeve assembly, and torsion bar 2, eliminates the need for construction workers to stand on A-frame ladders or operating platforms for high-altitude operations, significantly reducing the risks associated with working at heights. Workers can operate the device from the ground or a lower position, effectively reducing the possibility of accidental falls and improving construction safety. Furthermore, because this embodiment allows workers to operate directly from the ground without frequently moving A-frame ladders or operating platforms, construction efficiency is significantly improved. Workers can quickly and accurately tighten the nuts 3 on the ceiling hanger rods 4, reducing physical exertion and time costs, and facilitating faster project progress.

[0053] This embodiment utilizes the threaded connection between the adapter 1 and the sleeve assembly, along with the detachable design of the bolt 5, to facilitate the maintenance and replacement of the adapter 1. Furthermore, the specifications of the adapter 1 and the sleeve assembly can be adjusted according to different sizes and types of ceiling hangers 4 and nuts 3 to meet various ceiling installation requirements.

[0054] like Figure 2 and Figure 3 As shown, a channel 13 is formed on the converter head 1, and the channel 13 extends along the axial direction of the converter head 1; the radial cross-sectional shape of the channel 13 is adapted to the nut 3 so that the nut 3 can be placed in the channel 13, thereby enabling the converter head 1 to drive the nut 3 to rotate.

[0055] The radial cross-sectional shape of channel 13 is adapted to nut 3, ensuring that nut 3 can be stably placed within channel 13 and is not prone to slipping or misalignment. The adapter 1 directly drives nut 3 to rotate through channel 13, reducing installation errors caused by unstable nut 3 position. Nut 3 is confined within channel 13, eliminating the need for workers to apply additional force to maintain its position while rotating, allowing them to focus more on rotating torsion bar 2 and thus speeding up installation.

[0056] In this embodiment, nut 3 is a regular hexagonal nut, such as... Figure 2 As shown, the radial cross-sectional shape of channel 13 is a regular hexagon. The hexagonal shape of channel 13 allows it to closely fit a regular hexagonal nut or a nut 3 with a similar shape, ensuring the nut 3 is stably placed within the channel. This helps reduce nut wobble during rotation, improving installation accuracy and stability. Simultaneously, the hexagonal shape of channel 13 enables the adapter 1 to more effectively transmit torque to the nut 3. Due to the high shape matching degree, frictional losses caused by shape mismatch are reduced, thereby improving transmission efficiency.

[0057] like Figure 2 and Figure 3 As shown, a first limiting block 14 is also formed on the converter head 1. The first limiting block 14 is located in the channel 13 and is used to abut against the nut 3 to prevent the nut 3 from being misaligned.

[0058] The first limiting block 14 acts as a physical barrier, effectively preventing the nut 3 from moving axially within the channel 13, thereby preventing the nut 3 from becoming misaligned during installation. The nut 3 can always remain in the correct position, aligned with the thread of the ceiling hanger 4, thus improving the accuracy and reliability of the installation.

[0059] Meanwhile, the nut 3 is confined within the space formed by the channel 13 and the first limiting block 14, which makes it easier for construction personnel to control the rotation and tightening process of the nut 3, reducing installation errors caused by human error and improving the accuracy and consistency of installation.

[0060] like Figure 2 As shown, the first limiting block 14 is a ring structure, and the inner diameter of the first limiting block 14 is smaller than the outer diameter of the nut 3 to prevent the nut 3 from being misaligned.

[0061] The first limiting block 14 of the annular structure can obstruct the nut 3 in all directions, thereby effectively preventing any form of misalignment or tilting of the nut 3 during installation. Since the inner diameter of the first limiting block 14 is smaller than the outer diameter of the nut 3, the nut 3 is tightly confined within the channel 13 and cannot move axially at will. This makes it easier for construction personnel to control the rotation and tightening process of the nut 3, thereby improving the accuracy and consistency of installation.

[0062] like Figure 2 As shown, a first opening 15 is also formed on the side wall of the converter head 1. The first opening 15 is arranged along the axial direction of the converter head 1 and is connected to the channel 13. The first opening 15 is used to pass through the ceiling hanger 4.

[0063] The first opening 15 provides a direct channel for the ceiling hanger 4. After the nut 3 is tightened on the ceiling hanger 4, the adapter 1 moves downward to disengage the nut 3 from the channel 13. At the same time, the adapter 1 rotates to align the first opening 15 with the ceiling hanger 4. Thus, the adapter 1 can be easily removed from the ceiling hanger 4 through the first opening 15 without additional disassembly steps or tools, which improves the efficiency of the installation process and reduces labor costs.

[0064] like Figure 1 and Figure 4 As shown, the sleeve assembly includes a first sleeve 6 and a second sleeve 7. The first sleeve 6 is connected to the second sleeve 7. The adapter 1 is detachably mounted on the first sleeve 6, and the second sleeve 7 is sleeved on the torsion bar 2.

[0065] like Figure 2 and Figure 3 As shown, a second limiting block 16 is also formed on the side wall of the converter head 1. The second limiting block 16 is used to abut against the end of the first sleeve 6 to prevent the converter head 1 from falling into the first sleeve 6.

[0066] The main function of the second limiting block 16 is to abut against the end of the first sleeve 6, thereby effectively preventing the adapter 1 from accidentally falling into the first sleeve 6 during operation. The limiting function of the second limiting block 16 ensures that the adapter 1 is correctly positioned on the first sleeve 6 during installation, helping to reduce installation errors and deviations, thus ensuring the stability and reliability of the adapter 1.

[0067] like Figure 4 As shown, a second opening 61 is also formed on the side wall of the first sleeve 6. The second opening 61 is arranged along the axial direction of the first sleeve 6 and corresponds to the first opening 15, so that the ceiling hanger 4 can pass through the second opening 61 and the first opening 15 and move out from the side of the converter head 1 and the side of the first sleeve 6.

[0068] The second opening 61 corresponds to the first opening 15 and is arranged along the axial direction of the first sleeve 6, providing a direct passage for the ceiling hanger 4 to be moved out from the side of the adapter 1 and the side of the first sleeve 6. During installation or disassembly, the construction personnel can easily adjust the position of the adapter 1 to allow the ceiling hanger 4 to pass through the second opening 61 and the first opening 15, thus simplifying the operation process.

[0069] like Figure 4 As shown, the first sleeve 6 and the second sleeve 7 are staggered to make the first sleeve 6 and the second sleeve 7 non-coaxial, which facilitates the removal of the ceiling hanger 4 from the side of the adapter 1 and the side of the first sleeve 6.

[0070] The staggered connection design creates an angular deviation between the first sleeve 6 and the second sleeve 7, providing space for the ceiling hanger 4 to be moved out from the side of the adapter 1 and the first sleeve 6. After installation, workers can easily move the ceiling hanger 4 out from the side by adjusting the position of the adapter 1 or the first sleeve 6 without complicated disassembly.

[0071] like Figure 1 As shown, the torsion bar 2 is a telescopic bar. The design of the telescopic bar allows the length of the torsion bar 2 to be adjusted according to actual needs, which helps to adapt to different installation heights and positions of the ceiling hangers 4, and improves the versatility and flexibility of the ceiling hanger tightening device.

[0072] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made based on the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A ceiling hanger rod tightening device, characterized in that, include: The adapter (1), sleeve assembly and torsion bar (2) are provided. The adapter (1) is detachably installed at one end of the sleeve assembly, and the other end of the sleeve assembly is sleeved on the torsion bar (2). The adapter (1) is used to place the nut (3). Rotating the torsion bar (2) can drive the adapter (1) to rotate so that the nut (3) is tightened on the ceiling hanger (4). The outer wall of the adapter (1) is formed with a first thread (11), and the inner wall of one end of the sleeve assembly is formed with a second thread. The first thread (11) and the second thread are adapted to each other so that the adapter (1) can be detachably installed at one end of the sleeve assembly. It also includes a bolt (5), the adapter (1) also has a first through hole (12), and a second through hole is formed on one end of the sleeve assembly. The bolt (5) can pass through the first through hole (12) and the second through hole to detachably fix the adapter (1) to one end of the sleeve assembly.

2. The ceiling hanger rod tightening device according to claim 1, characterized in that, The converter head (1) has a channel (13) formed on it, and the channel (13) extends along the axial direction of the converter head (1). The radial cross-sectional shape of the channel (13) is adapted to the nut (3) so that the nut (3) can be placed in the channel (13), thereby enabling the converter head (1) to drive the nut (3) to rotate.

3. A ceiling hanger rod tightening device according to claim 2, characterized in that, A first limiting block (14) is also formed on the converter head (1). The first limiting block (14) is located in the channel (13). The first limiting block (14) is used to abut against the nut (3) to prevent the nut (3) from being misaligned.

4. A ceiling hanger rod tightening device according to claim 3, characterized in that, The first limiting block (14) is a ring structure, and the inner diameter of the first limiting block (14) is smaller than the outer diameter of the nut (3) to prevent the nut (3) from being misaligned.

5. A ceiling hanger rod tightening device according to claim 2, characterized in that, A first opening (15) is also formed on the side wall of the converter (1). The first opening (15) is arranged along the axial direction of the converter (1) and is connected to the channel (13). The first opening (15) is used to pass through the ceiling hanger (4).

6. A ceiling hanger rod tightening device according to claim 5, characterized in that, The sleeve assembly includes a first sleeve (6) and a second sleeve (7), the first sleeve (6) and the second sleeve (7) are connected, the conversion head (1) is detachably installed on the first sleeve (6), and the second sleeve (7) is sleeved on the torsion bar (2).

7. A ceiling hanger rod tightening device according to claim 6, characterized in that, A second limiting block (16) is also formed on the side wall of the converter head (1). The second limiting block (16) is used to abut against the end of the first sleeve (6) to prevent the converter head (1) from falling into the first sleeve (6).

8. A ceiling hanger rod tightening device according to claim 6, characterized in that, A second opening (61) is also formed on the side wall of the first sleeve (6). The second opening (61) is arranged along the axial direction of the first sleeve (6) and corresponds to the first opening (15) so that the ceiling hanger (4) can pass through the second opening (61) and the first opening (15) and move out from the side of the converter head (1) and the side of the first sleeve (6).

9. A ceiling hanger rod tightening device according to claim 8, characterized in that, The first sleeve (6) and the second sleeve (7) are staggered to make the first sleeve (6) and the second sleeve (7) non-coaxial, thereby facilitating the removal of the ceiling hanger (4) from the side of the adapter (1) and the side of the first sleeve (6).

10. A ceiling hanger rod tightening device according to claim 1, characterized in that, The torsion bar (2) is a telescopic bar.

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