A duct bidirectional anti-seismic support

Abstract

The utility model relates to a kind of duct bidirectional anti-seismic support, belong to duct support technical field.The duct bidirectional anti-seismic support includes bearing part and telescopic part, the bearing part includes the upper crossbeam and lower crossbeam of parallel arrangement, the inside of the upper crossbeam and lower crossbeam is equipped with threaded rod, two symmetrical clamping pieces are threadedly connected to the threaded rod, two the clamping piece moves along threaded rod axial direction, and movement direction is opposite, the clamping piece penetrates the working surface of bearing part and extends to duct both sides, the bottom side of the upper crossbeam is equipped with telescopic part, telescopic part connects lower crossbeam, the telescopic part is used to adjust the distance of upper crossbeam and lower crossbeam.The utility model provides scheme, threaded rod drives clamping piece synchronous reverse movement, realize the symmetrical clamping of duct both sides, cooperate telescopic part and realize the distance adjustment between upper crossbeam and lower crossbeam, can adapt to the duct installation demand of different size, significantly improve the anti-seismic stability of duct, can prevent duct from slipping due to vibration.

Description

Technical Field

[0001] This utility model relates to the field of duct support technology, and in particular to a bidirectional seismic-resistant duct support. Background Technology

[0002] Air ducts, as piping systems for transporting and distributing air, are typically suspended from the ceiling in air conditioning systems. To ensure stable installation and improve their seismic resistance, two-way seismic bracing is usually used to secure the air ducts.

[0003] Traditional duct seismic bracing typically consists of a pair of vertical hangers that suspend the duct. However, during use, the duct may slip on the hangers due to external vibrations, causing it to sway or even fall off. Furthermore, existing seismic bracing is inconvenient for securing ducts of varying heights and widths during installation. Therefore, this invention proposes a bidirectional seismic bracing for ducts to address these problems. Utility Model Content

[0004] To overcome the problems existing in related technologies, this utility model provides a bidirectional seismic brace for air ducts. The threaded rod drives the clamping parts to move synchronously in opposite directions, realizing symmetrical clamping on both sides of the air duct. With the help of the telescopic part, the distance between the upper and lower crossbeams can be adjusted, which can adapt to the installation requirements of air ducts of different sizes, significantly improve the seismic stability of the air duct, and prevent the air duct from slipping due to vibration.

[0005] This utility model provides a bidirectional seismic-resistant support for air ducts, including a load-bearing part and a telescopic part. The load-bearing part includes an upper crossbeam and a lower crossbeam arranged in parallel. Both the upper and lower crossbeams are hollow structures. The interior of each of the upper and lower crossbeams is provided with a threaded rod extending along its own length direction. The threaded rod is threadedly connected to two symmetrically arranged clamping members. The two clamping members move along the axial direction of the threaded rod in opposite directions. The clamping members penetrate the working surface of the load-bearing part and extend to both sides of the air duct. The telescopic part is provided on both sides of the bottom of the upper crossbeam. The telescopic part is connected to the lower crossbeam and is used to adjust the distance between the upper and lower crossbeams.

[0006] In some embodiments, the telescopic part includes a mounting tube and a connecting rod that slides with the mounting tube. The mounting tube is connected to an upper crossbeam, and the connecting rod is connected to a lower crossbeam. A limiting adjustment structure is provided between the mounting tube and the connecting rod, and the limiting adjustment structure is used to make the length of the connecting rod extending relative to the mounting tube adjustable.

[0007] In some embodiments, the limiting adjustment structure includes a spring and a locking block. The two ends of the spring are respectively connected to a connecting rod and the locking block. The axial direction of the spring is perpendicular to the axial direction of the connecting rod. The mounting tube is provided with a plurality of slots spaced apart along its own axial direction. When the spring is compressed, the connecting rod slides in conjunction with the mounting tube. When the spring is relaxed, the locking block engages with one of the slots through the spring.

[0008] In some embodiments, the inner wall of the mounting tube is provided with a guide groove opposite to the slot, the guide groove extends along the axial direction of the mounting tube, and the outer periphery of the connecting rod is provided with a guide block that slides with the guide groove.

[0009] In some embodiments, the clamping member includes a linear guide rail, a slider, a threaded sleeve, and a support clamping plate. The linear guide rail is provided inside both the upper and lower crossbeams. The slider is slidably connected to the linear guide rail. The threaded sleeve is connected to the slider and threadedly connected to the threaded rod. Both the upper and lower crossbeams are provided with openings extending along their own length direction. The support clamping plate passes through the openings and is connected to the threaded sleeve.

[0010] In some embodiments, the threaded rod includes a first screw and a second screw connected together, the first screw and the second screw having opposite thread directions, and one of the two clamping members being threadedly connected to the first screw and the other being threadedly connected to the second screw.

[0011] In some embodiments, one end of the threaded rod is rotatably connected to the bearing via a bearing, and the other end of the threaded rod is provided with a rotating handle.

[0012] In some embodiments, a lifting bracket is provided at the top of the upper crossbeam.

[0013] The technical solution provided by this utility model can include the following beneficial effects:

[0014] When applying the technical solution of this utility model, the air duct is clamped by the upper and lower crossbeams, and the distance between the upper and lower crossbeams is adjusted by the telescopic part, which can adapt to the installation requirements of different heights of the air duct. With the help of the threaded rod, the clamping parts move synchronously in opposite directions to achieve symmetrical clamping on both sides of the air duct, which has a double fixing effect and can effectively improve the shock resistance of the device and the air duct. Attached Figure Description

[0015] The above and other objects, features and advantages of the present invention will become more apparent from the accompanying drawings, in which like reference numerals generally represent like parts.

[0016] Figure 1This is a schematic diagram of the structure of the bidirectional seismic-resistant support for air ducts shown in an embodiment of this utility model;

[0017] Figure 2 This is another structural schematic diagram of the bidirectional seismic-resistant support for air ducts shown in this embodiment of the utility model;

[0018] Figure 3 This is another structural schematic diagram of the telescopic part shown in an embodiment of the present utility model;

[0019] Figure 4 yes Figure 2 Enlarged diagram of point A in the middle.

[0020] Figure label:

[0021] 1. Load-bearing part; 11. Upper crossbeam; 12. Lower crossbeam; 13. Threaded rod; 14. Clamping component; 141. Linear guide rail; 142. Slider; 143. Threaded sleeve; 144. Support clamp; 15. Rotating handle; 16. Lifting bracket;

[0022] 2. Telescopic part; 21. Mounting tube; 21a. Guide groove; 21b. Slot; 22. Connecting rod; 22a. Guide block; 23. Limit adjustment structure; 231. Spring; 232. Slot. Detailed Implementation

[0023] Preferred embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.

[0024] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a,” “the,” and “the” used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0025] It should be understood that although the terms "first," "second," "third," etc., may be used in this invention to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this invention, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] The technical solutions of the embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0027] Please see Figures 1 to 4 The present invention provides a bidirectional seismic support for a duct, comprising a load-bearing part 1 and a telescopic part 2. The load-bearing part 1 includes an upper crossbeam 11 and a lower crossbeam 12 arranged in parallel. Both the upper crossbeam 11 and the lower crossbeam 12 are hollow structures. The interior of each of the upper crossbeam 11 and the lower crossbeam 12 is provided with a threaded rod 13 extending along its own length direction. The threaded rod 13 is threadedly connected to two symmetrically arranged clamping members 14. The two clamping members 14 move axially along the threaded rod 13 in opposite directions. The clamping members 14 penetrate the working surface of the load-bearing part 1 and extend to both sides of the duct. The telescopic part 2 is provided on both sides of the bottom of the upper crossbeam 11. The telescopic part 2 is connected to the lower crossbeam 12 and is used to adjust the distance between the upper crossbeam 11 and the lower crossbeam 12.

[0028] Specifically, the bearing section 1 and the telescopic section 2 constitute the main frame of the bidirectional seismic support for the duct. The upper crossbeam 11 and the lower crossbeam 12 are arranged in parallel to form a clamping cavity. The upper crossbeam 11 is installed and fixed on a fixed structure such as a wall. The upper crossbeam 11 and the lower crossbeam 12 are made of bent steel, hollow inside, and have an opening on the top surface for the movement of the clamping member 14. The bearing section 1 has two threaded rods 13. The first end of the threaded rod 13 is rotatably connected to the fixing plate. The fixing plate is fixed to one end of the upper crossbeam 11 and the lower crossbeam 12 by welding. In some embodiments, the first end of the threaded rod 13 can pass through the fixing plate (not shown) to realize the rotatable connection between the threaded rod 13 and the fixing plate. To ensure the smooth rotation of the threaded rod 13, a bearing can also be provided on the fixing plate. The outer ring of the bearing is welded and fixed to the fixing plate. After the threaded rod 13 passes through the inner ring of the bearing, it is connected and fixed to the inner ring of the bearing by welding. The threaded rod 13 can be driven to rotate by mechanical or manual rotation. Two sets of clamping members 14 are spaced apart on the threaded rod 13. The threaded rod 13 has the opposite thread drive direction to the two clamping members 14, allowing the clamping members 14 to move toward the center of the threaded rod 13, thereby clamping and fixing both sides of the duct. The bottom of the upper crossbeam 11 faces the lower crossbeam 12. The bottom of the upper crossbeam 11 has symmetrically arranged telescopic parts 2, which are connected to the lower crossbeam 12. The distance between the upper crossbeam 11 and the lower crossbeam 12 can be adjusted by the telescopic parts 2 to accommodate ducts of different heights.

[0029] In this embodiment, the threaded rod 13 drives the clamping parts 14 on both sides to move synchronously in opposite directions, thereby achieving bidirectional symmetrical clamping of the air duct, avoiding uneven force on one side, and significantly improving seismic stability. The telescopic part 2 can adjust the distance between the upper and lower crossbeams 12 to adapt to air ducts with different cross-sectional heights and expand the scope of application. The upper crossbeam 11 and the lower crossbeam 12 support the air duct at the same time, and the clamping parts 14 clamp the air duct laterally to form a four-way limit, which can effectively prevent the air duct from slipping or rotating due to vibration.

[0030] Furthermore, the telescopic part 2 includes an installation tube 21 and a connecting rod 22 that slides with the installation tube 21. The installation tube 21 is connected to the upper crossbeam 11, and the connecting rod 22 is connected to the lower crossbeam 12. A limiting adjustment structure 23 is provided between the installation tube 21 and the connecting rod 22. The limiting adjustment structure 23 is used to make the length of the connecting rod 22 extending relative to the installation tube 21 adjustable.

[0031] Furthermore, the limiting adjustment structure 23 includes a spring 231 and a locking block 232. The two ends of the spring 231 are respectively connected to the connecting rod 22 and the locking block 232. The axial direction of the spring 231 is perpendicular to the axial direction of the connecting rod 22. The mounting tube 21 is provided with a plurality of slots 21b spaced apart along its own axial direction. When the spring 231 is compressed, the connecting rod 22 slides in cooperation with the mounting tube 21. When the spring 231 is relaxed, the locking block 232 engages with one of the slots 21b through the spring 231.

[0032] In this embodiment, the sliding connecting rod 22 is fixed by a limiting structure, making operation simple and adaptable to the needs of rapid adjustment at the installation site. The plug-in design of the mounting pipe 21 and the connecting rod 22 improves the overall rigidity of the telescopic part 2 and reduces the deformation of the bidirectional seismic support for the duct caused by vibration.

[0033] Specifically, the telescopic parts 2, which are symmetrically arranged on the left and right, adopt a sleeve structure. The mounting tube 21 is welded and fixed to both sides of the bottom of the upper crossbeam 11. The axis of the mounting tube 21 is perpendicular to the axis of the upper crossbeam 11. One end of the connecting rod 22 is welded and fixed to both sides of the top of the lower crossbeam 12. The axis of the connecting rod 22 is perpendicular to the axis of the lower crossbeam 12. The connecting rod 22 is inserted into the mounting tube 21. The limiting adjustment structure 23 is set between the mounting tube 21 and the connecting rod 22. The spring 231 is horizontally installed on the outer periphery of the connecting rod 22. Under normal conditions, the push block 232 is inserted into the slot 21b of the mounting tube 21. During adjustment, pressing down the block 232 compresses the spring 231 to slide and adjust the position. In its natural state, the spring 231 automatically pushes the block 232 into the slot 21b to prevent accidental sliding after adjustment, enhance seismic reliability, and only requires pressing down the block 232 to compress the spring 231 to adjust, reducing installation complexity.

[0034] To improve the assembly accuracy of the locking block 232 and the locking groove 21b, based on the above specific embodiment, the inner side wall of the mounting tube 21 is provided with a guide groove 21a opposite to the locking groove 21b. The guide groove 21a extends along the axial direction of the mounting tube 21, and the outer periphery of the connecting rod 22 is provided with a guide block 22a that slides with the guide groove 21a to guide the connecting rod 22 to move linearly in the axial direction, avoid deflection and jamming during adjustment, and ensure that the locking block 232 and the locking groove 21b are accurately aligned.

[0035] Furthermore, the clamping member 14 includes a linear guide rail 141, a slider 142, a threaded sleeve 143, and a support clamping plate 144. The linear guide rail 141 is provided inside both the upper crossbeam 11 and the lower crossbeam 12. The slider 142 is slidably connected to the linear guide rail 141. The threaded sleeve 143 is connected to the slider 142 and is threadedly connected to the threaded rod 13. Both the upper crossbeam 11 and the lower crossbeam 12 are provided with openings extending along their own length direction. The support clamping plate 144 passes through the openings and is connected to the threaded sleeve 143. The linear guide rail 141 is preferably a ball bearing guide rail. The slider 142 is equipped with a self-lubricating copper sleeve. The two sets of symmetrically arranged support clamping plates 144 are slidably connected to the linear guide rail 141 inside the crossbeam through the slider 142. The threaded sleeve 143 and the double threaded rod 13 form a cooperative relationship to realize the reverse translation of the support clamping plate 144. To ensure that the support clamp 144 can clamp and fix the air duct for a long time, multiple sets of anti-loosening teeth are evenly inclined on the upper surface of the threaded rod. The inclination direction of the multiple sets of anti-loosening teeth is opposite to the direction of the thread on the screw rod. The self-locking characteristic of the thread prevents the clamping part 14 from loosening due to vibration and strengthens the clamping stability.

[0036] Furthermore, the threaded rod 13 includes a first screw and a second screw connected to each other, with the threads of the first screw and the second screw having opposite directions. One of the two clamping members 14 is threadedly connected to the first screw, and the other is threadedly connected to the second screw. The first screw and the second screw are fixed by welding. A single rotation of the threaded rod 13 can realize the symmetrical reverse movement of the clamping members 14, simplifying the operation steps and improving clamping efficiency.

[0037] Furthermore, the end of the threaded rod 13 is rotatably connected to the bearing part 1 via a bearing, and the other end of the threaded rod 13 is provided with a rotating handle 15.

[0038] Furthermore, a hoisting bracket 16 is provided at the top of the upper crossbeam 11. Specifically, the device is fixed to the building structure by the hoisting bracket 16. Press the locking block 232 to adjust the lower crossbeam 12 to the required spacing (to match the height of the air duct). Rotate the handle 15 to drive the support clamp 144 to simultaneously press against both sides of the air duct. Check the uniformity of pressure on the contact surface between the upper and lower crossbeams 12 and the air duct. Then lock the threaded rod 13.

[0039] Compared with existing technologies, the above-mentioned bidirectional seismic bracing for air ducts has the following advantages:

[0040] By setting the lower crossbeam 12 and the upper crossbeam 11, the bottom of the duct can be supported by the lower crossbeam 12 during use. By inserting the fixing block 232 into different fixing slots 21b, the distance between the lower crossbeam 12 and the upper crossbeam 11 can be adjusted so that the upper crossbeam 11 fits tightly against the top of the duct. The duct can then be clamped and fixed by the lower crossbeam 12 and the upper crossbeam 11, thus adapting to ducts of different heights.

[0041] Both the upper crossbeam 11 and the lower crossbeam 12 are hollow structures, which realizes the hidden setting of the first threaded rod 13 and the second threaded rod 13. When the first threaded rod 13 and the second threaded rod 13 are rotated, the two sets of clamping parts 14 can be moved towards the center of the air duct. The two sides of the air duct can be clamped and fixed by the support clamping plate 144. Together with the lower crossbeam 12 and the upper crossbeam 11, four-way limiting is realized, which effectively prevents deflection and falling off caused by vibration.

[0042] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A bidirectional seismic-resistant support for air ducts, characterized in that, The device includes a support part (1) and a telescopic part (2). The support part (1) includes an upper crossbeam (11) and a lower crossbeam (12) arranged in parallel. Both the upper crossbeam (11) and the lower crossbeam (12) are hollow structures. The interior of the upper crossbeam (11) and the lower crossbeam (12) is provided with a threaded rod (13) extending along its own length direction. The threaded rod (13) is threadedly connected to two symmetrically arranged clamping members (14). The two clamping members (14) move axially along the threaded rod (13) and in opposite directions. The clamping members (14) penetrate the working surface of the support part (1) and extend to both sides of the air duct. The telescopic part (2) is provided on both sides of the bottom of the upper crossbeam (11). The telescopic part (2) is connected to the lower crossbeam (12). The telescopic part (2) is used to adjust the distance between the upper crossbeam (11) and the lower crossbeam (12).

2. The bidirectional seismic bracing for air ducts according to claim 1, characterized in that, The telescopic part (2) includes an installation tube (21) and a connecting rod (22) that slides with the installation tube (21). The installation tube (21) is connected to the upper crossbeam (11), and the connecting rod (22) is connected to the lower crossbeam (12). A limiting adjustment structure (23) is provided between the installation tube (21) and the connecting rod (22). The limiting adjustment structure (23) is used to make the length of the connecting rod (22) extending relative to the installation tube (21) adjustable.

3. The bidirectional seismic bracing for air ducts according to claim 2, characterized in that, The limiting adjustment structure (23) includes a spring (231) and a locking block (232). The two ends of the spring (231) are respectively connected to the connecting rod (22) and the locking block (232). The axial direction of the spring (231) is perpendicular to the axial direction of the connecting rod (22). The mounting tube (21) is provided with a plurality of slots (21b) spaced apart along its own axial direction. When the spring (231) is compressed, the connecting rod (22) slides with the mounting tube (21). When the spring (231) is relaxed, the locking block (232) engages with one of the slots (21b) through the spring (231).

4. The bidirectional seismic bracing for air ducts according to claim 3, characterized in that, The inner wall of the mounting tube (21) is provided with a guide groove (21a) opposite to the slot (21b). The guide groove (21a) extends along the axial direction of the mounting tube (21). The outer periphery of the connecting rod (22) is provided with a guide block (22a) that slides with the guide groove (21a).

5. The bidirectional seismic bracing for air ducts according to claim 1, characterized in that, The clamping member (14) includes a linear guide rail (141), a slider (142), a threaded sleeve (143), and a support clamping plate (144). The linear guide rail (141) is provided inside both the upper crossbeam (11) and the lower crossbeam (12). The slider (142) is slidably connected to the linear guide rail (141). The threaded sleeve (143) is connected to the slider (142). The threaded sleeve (143) is threadedly connected to the threaded rod (13). Both the upper crossbeam (11) and the lower crossbeam (12) are provided with openings extending along their own length direction. The support clamping plate (144) passes through the openings and is connected to the threaded sleeve (143).

6. The bidirectional seismic bracing for air ducts according to claim 5, characterized in that, The threaded rod (13) includes a first screw and a second screw connected to each other. The first screw and the second screw have opposite thread directions. One of the two clamping members (14) is threadedly connected to the first screw and the other is threadedly connected to the second screw.

7. The bidirectional seismic bracing for air ducts according to claim 1, characterized in that, The end of the threaded rod (13) is rotatably connected to the bearing part (1) via a bearing, and the other end of the threaded rod (13) is provided with a rotating handle (15).

8. The bidirectional seismic bracing for air ducts according to claim 1, characterized in that, The top of the upper crossbeam (11) is provided with a hoisting bracket (16).

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