Fire dam wind pipe fixing device

Abstract

The utility model is suitable for fire -proof air pipe installation technical field provides a kind of fire -proof air pipe fixing device, including the boom of symmetrical arrangement;Setting on the boom, the support plate for supporting the placement of fire -proof air pipe;Setting on the one side of boom mounting plate, the mounting plate is provided with fixed plate, the fixed plate is used to the clamping fixation of fire -proof air pipe placed on the support plate;Displacement mechanism is assembled between the mounting plate and the fixed plate, the displacement mechanism is used when the fixed plate is extruded by fire -proof air pipe thermal expansion and moves;The displacement mechanism includes: fixed mounting on the mounting plate on installation shell, spring is arranged in the installation shell;Sliding installation is connected in the installation shell in the frame.The fire -proof air pipe fixing device provided in the scheme can be fixed and installed to fire -proof air pipe, and can meet the displacement demand when fire -proof air pipe thermal expansion, effectively improve the security of fire -proof air pipe fixation.

Description

Technical Field

[0001] This utility model belongs to the field of fireproof air duct installation technology, and in particular relates to a fireproof air duct fixing device. Background Technology

[0002] Fireproof air ducts are ventilation ducts made of non-combustible and fire-resistant materials. Their core function is to block the spread of flames and high-temperature smoke through fire-resistant materials in the event of a fire, thus buying time for personnel evacuation and fire fighting and rescue.

[0003] When installing fireproof air ducts, appropriate fireproof air duct fixing devices are required to install and fix the fireproof air ducts. During use, when fire occurs, the fireproof air ducts will expand due to high temperatures. However, some existing fireproof air duct fixing devices cannot move the fireproof air ducts when they expand due to heat after fixing them. This can lead to the fireproof air ducts cracking due to excessive clamping force from the fixing devices during thermal expansion, reducing the safety of fixing the fireproof air ducts. Utility Model Content

[0004] This utility model provides a fireproof duct fixing device, which aims to solve the problem mentioned in the background art that some existing fireproof duct fixing devices cannot move when the fireproof duct expands due to heat after fixing, which leads to the fireproof duct easily breaking due to excessive clamping force of the fixing device when it expands due to heat.

[0005] To solve the above problems, this utility model is implemented as follows: a fireproof duct fixing device includes: symmetrically arranged hangers; a support plate disposed on the hangers for supporting and placing the fireproof duct; an mounting plate disposed on one side of the hangers, the mounting plate being provided with a fixing plate, the fixing plate being used to clamp and fix the fireproof duct placed on the support plate; and a displacement mechanism assembled between the mounting plate and the fixing plate, the displacement mechanism being used to displace the fixing plate when it is subjected to thermal expansion and compression by the fireproof duct.

[0006] Preferably, the displacement mechanism includes: a mounting shell fixedly mounted on the mounting plate, wherein a spring is disposed inside the mounting shell; and a connecting frame slidably mounted inside the mounting shell, one end of the connecting frame being fixedly connected to the fixed plate, the connecting frame being used to compress the spring.

[0007] Preferably, a telescopic rod is provided inside the mounting housing, the telescopic rod is located inside the spring, and an adjustment mechanism is provided on the hanging rod and the mounting plate, the adjustment mechanism being used to adjust the lateral position of the mounting plate and the fixing plate.

[0008] Preferably, the adjusting mechanism includes: a lead screw fixedly mounted on the mounting plate, the lead screw and the lifting rod being slidably connected; and a limiting nut threaded onto the lead screw, one side of the limiting nut abutting against one side of the lifting rod.

[0009] Preferably, a placement block is fixedly installed on the rod, and a fixing bolt is fixedly installed on the placement block. The fixing bolt is adapted to the connection hole on the support plate, and a fixing nut is threaded on the fixing bolt. The bottom end of the fixing nut abuts against the top of the support plate.

[0010] Preferably, a slide rod is fixedly installed on the mounting plate, and the slide rod is slidably connected to a sliding hole on the hanging rod. A ball is nested in the sliding hole, and the ball is in contact with the outer wall of the slide rod.

[0011] Preferably, both of the hangers are equipped with expansion bolts, and the hangers are fixedly connected to the wall where the fireproof air duct is installed through the expansion bolts.

[0012] Preferably, fireproof rock wool pads are provided on the side of the two fixing plates that are close to each other.

[0013] Compared with related technologies, the fireproof duct fixing device provided by this utility model has the following advantages: Compared with existing technologies, the fireproof duct fixing device provided in this solution can fix the fireproof duct and meet the displacement requirements of the fireproof duct during thermal expansion, effectively improving the safety of fixing the fireproof duct. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of a fireproof air duct fixing device provided by this utility model; Figure 2 This is a schematic diagram of the front sectional view of the present invention; Figure 3 for Figure 2 An enlarged structural diagram of part A shown in the figure; Figure 4 for Figure 2 The diagram shows an enlarged view of part B.

[0015] Reference numerals in the attached drawings: 1. Hanging rod; 2. Support plate; 3. Mounting plate; 4. Fixing plate; 5. Mounting shell; 6. Spring; 7. Connecting frame; 8. Screw rod; 9. Limiting nut; 10. Placement block; 11. Fixing bolt; 12. Fixing nut; 13. Sliding rod; 14. Ball bearing; 15. Expansion bolt. Detailed Implementation

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings are used to distinguish different objects, not to describe a particular order; the terms "inner," "outer," "left," and "right" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0017] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0018] This utility model embodiment provides a fireproof air duct fixing device, such as Figures 1-4 As shown, the fireproof duct fixing device includes: symmetrically arranged hangers 1; a support plate 2 disposed on the hangers 1 for supporting and placing the fireproof duct; an mounting plate 3 disposed on one side of the hangers 1, the mounting plate 3 being provided with a fixing plate 4, the fixing plate 4 being used to clamp and fix the fireproof duct placed on the support plate 2; and a displacement mechanism assembled between the mounting plate 3 and the fixing plate 4, the displacement mechanism being used to displace the fixing plate 4 when it is subjected to thermal expansion and compression by the fireproof duct.

[0019] In this embodiment, in actual use, the hanger 1 is installed on the corresponding top wall, the support plate 2 and the two hangers 1 are fixedly connected, and the fireproof air duct is placed on the support plate 2. The support plate 2 provides good support for the fireproof air duct, and the two fixing plates 4 can clamp and fix the two sides of the fireproof air duct. When a fire occurs and the fireproof air duct expands due to heat, the expanded fireproof air duct squeezes the fixing plates 4. Under the action of the displacement mechanism, the fixing plates 4 can be displaced when compressed by the thermal expansion of the fireproof air duct, avoiding the fireproof air duct from breaking due to excessive clamping force of the fixing device. This effectively improves the safety of fixing the fireproof air duct. Through the entire device, the fireproof air duct can be fixedly installed and the displacement requirements of the fireproof air duct during thermal expansion can be met, effectively improving the safety of fixing the fireproof air duct.

[0020] In a further preferred embodiment of the present invention, the displacement mechanism includes: a mounting shell 5 fixedly mounted on the mounting plate 3, wherein a spring 6 is disposed inside the mounting shell 5; and a connecting frame 7 slidably mounted inside the mounting shell 5, wherein one end of the connecting frame 7 is fixedly connected to the fixing plate 4, and the connecting frame 7 is used to compress the spring 6.

[0021] In this embodiment, during actual use, when the fireproof duct expands due to heat in a fire, the duct will exert a compressive force on the fixing plate 4. This force is transmitted to the spring 6 through the connecting frame 7, causing the connecting frame 7 to slide within the mounting shell 5 and compress the spring 6. The elastic deformation of the spring 6 can buffer the compressive stress generated when the fireproof duct expands. Combined with the sliding displacement of the connecting frame 7 within the mounting shell 5, the fixing plate 4 can move appropriately as the fireproof duct expands, preventing the fireproof duct from breaking due to excessive clamping force of the fixing device, and greatly improving the safety and reliability of fixing the fireproof duct.

[0022] In a further preferred embodiment of this utility model, a telescopic rod is provided inside the mounting shell 5, the telescopic rod is located inside the spring 6, and an adjustment mechanism is provided on the hanging rod 1 and the mounting plate 3, the adjustment mechanism being used to adjust the lateral position of the mounting plate 3 and the fixing plate 4.

[0023] In this embodiment, the stability of the spring 6 during deformation can be improved by the telescopic rod. In actual use, when facing fireproof air ducts of different specifications and sizes, the operator can flexibly adjust the lateral position of the mounting plate 3 and the fixing plate 4 through the adjustment mechanism, so that the fixing device can better adapt to the fireproof air duct and achieve precise installation and fixing.

[0024] In a further preferred embodiment of the present invention, the adjusting mechanism includes: a lead screw 8 fixedly installed on the mounting plate 3, the lead screw 8 and the lifting rod 1 being slidably connected; and a limiting nut 9 threadedly installed on the lead screw 8, one side of the limiting nut 9 abutting against one side of the lifting rod 1.

[0025] In this embodiment, during actual use, when adjusting the lateral position of the mounting plate 3 and the fixing plate 4, the operator, according to the actual usage situation, makes one side of the fixing plate 4 abut against one side of the fireproof air duct, and then rotates the limiting nut 9 so that one side of the limiting nut 9 abuts against one side of the hanger 1, thereby preventing the mounting plate 3 from moving away from the fireproof air duct, thus fixing the lateral position of the mounting plate 3 and the fixing plate 4. Similarly, the fixing plate 4 on the other hanger 1 is operated to clamp and fix both sides of the fireproof air duct, and can better adapt to different fireproof air ducts.

[0026] In a further preferred embodiment of this utility model, a placement block 10 is fixedly installed on the hanging rod 1, and a fixing bolt 11 is fixedly installed on the placement block 10. The fixing bolt 11 is adapted to connect with the connecting hole on the support plate 2, and a fixing nut 12 is threaded on the fixing bolt 11. The bottom end of the fixing nut 12 abuts against the top of the support plate 2.

[0027] In this embodiment, when the support plate 2 needs to be installed on the hanger 1, first align the connecting hole of the support plate 2 with the fixing bolt 11 on the placement block 10 and put it in. Then, rotate the fixing nut 12 onto the fixing bolt 11. As the fixing nut 12 is tightened, the bottom end of the fixing nut 12 will tightly abut against the top of the support plate 2, thereby firmly fixing the support plate 2 on the placement block 10 and ensuring that the support plate 2 can reliably support the fireproof air duct.

[0028] In a further preferred embodiment of the present invention, a slide rod 13 is fixedly installed on the mounting plate 3. The slide rod 13 is slidably connected to a sliding hole on the hanging rod 1. A ball bearing 14 is nested in the sliding hole, and the ball bearing 14 is in contact with the outer wall of the slide rod 13.

[0029] In this embodiment, the slide bar 13 can limit the displacement of the mounting plate 3, improving the stability of the mounting plate 3 during displacement. At the same time, the ball bearing 14 can ensure that the slide bar 13 and the lead screw 8 can only be used laterally in one direction, thereby avoiding wear on the surface of the lead screw 8 caused by the hanger 1. It also reduces the resistance of the slide bar 13 when sliding in the sliding hole, making the movement of the fixed plate 4 smoother and more flexible.

[0030] In a further preferred embodiment of this utility model, each of the two suspension rods 1 is provided with an expansion bolt 15, and the suspension rod 1 is fixedly connected to the wall where the fireproof air duct is installed through the expansion bolt 15.

[0031] In this embodiment, when the fireproof duct fixing device needs to be installed, a suitable installation position is first determined on the wall and a hole is drilled. Then, the expansion bolt 15 is inserted into the hole. As the special structure at the tail of the expansion bolt 15 unfolds, it will be tightly locked in the wall hole, thereby firmly fixing the hanger 1 to the wall. As an important supporting component of the entire fixing device, the stable installation of the hanger 1 provides a solid foundation for subsequent operations such as the support plate 2 supporting the fireproof duct and the fixing plate 4 clamping and fixing the fireproof duct.

[0032] In a further preferred embodiment of this utility model, fireproof rock wool pads are provided on the side of the two fixing plates 4 that are close to each other.

[0033] In this embodiment, the fireproof rock wool pad is in direct contact with the outer wall of the fireproof air duct. On the one hand, the fireproof rock wool pad has good fireproof performance. When it encounters a high-temperature fire environment, it can effectively prevent and block heat conduction to the displacement mechanism. On the other hand, the fireproof rock wool pad is soft and has a certain degree of elasticity. When the fixing plate 4 clamps the fireproof air duct, it can play a buffering role and prevent the fixing plate 4 from directly and rigidly squeezing the fireproof air duct.

[0034] In summary, compared with related technologies, this device can be used to fix fireproof air ducts and meet the displacement requirements of fireproof air ducts during thermal expansion, effectively improving the safety of fixing fireproof air ducts.

[0035] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.

[0036] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A fire dam wind pipe fixing device, characterized in that, Include: Symmetrically arranged hanger rods (1); Support plates (2) arranged on the hanger rods (1) for supporting and placing fireproof air ducts; Mounting plates (3) arranged on one side of the hanger rods (1), the mounting plates (3) are provided with fixed plates (4), the fixed plates (4) are used for clamping and fixing the fireproof air ducts placed on the support plates (2); Displacement mechanism assembled between the mounting plates (3) and the fixed plates (4), the displacement mechanism is used for displacement of the fixed plates (4) when the fixed plates (4) are pressed by thermal expansion of the fireproof air ducts.

2. The fire sleeve securing device of claim 1, wherein The displacement mechanism comprises: Mounting shells (5) fixedly installed on the mounting plates (3), springs (6) are arranged in the mounting shells (5); Connecting frames (7) slidingly installed in the mounting shells (5), one end of the connecting frames (7) is fixedly connected with the fixed plates (4), and the connecting frames (7) are used for compressing the springs (6).

3. The fire sleeve securing device of claim 2, wherein: Telescopic rods are arranged in the mounting shells (5), the telescopic rods are located in the interiors of the springs (6), adjusting mechanisms are arranged on the hanger rods (1) and the mounting plates (3), and the adjusting mechanisms are used for adjusting transverse use positions of the mounting plates (3) and the fixed plates (4).

4. The fire sleeve securing device of claim 3, wherein: The adjusting mechanism comprises: Lead screws (8) fixedly installed on the mounting plates (3), the lead screws (8) are slidingly connected with the hanger rods (1); Limiting nuts (9) threadedly installed on the lead screws (8), one side of the limiting nuts (9) abuts against one side of the hanger rods (1).

5. The fire sleeve securing device of claim 1, wherein: Placing blocks (10) are fixedly installed on the hanger rods (1), fixed bolts (11) are fixedly installed on the placing blocks (10), the fixed bolts (11) are connected with connecting holes in the support plates (2) in a matched mode, fixed nuts (12) are threadedly installed on the fixed bolts (11), and bottom ends of the fixed nuts (12) abut against the top of the support plates (2).

6. The fire sleeve securing device of claim 1, wherein: Slide rods (13) are fixedly installed on the mounting plates (3), the slide rods (13) are slidingly connected with slide holes in the hanger rods (1), balls (14) are nested in the slide holes, and the balls (14) abut against outer walls of the slide rods (13).

7. The fire sleeve securing device of claim 1, wherein Expansion bolts (15) are arranged on the two hanger rods (1), and the hanger rods (1) are fixedly connected with wall surfaces on which the fireproof air ducts are installed through the expansion bolts (15).

8. The fire sleeve securing device of claim 1, wherein: Fireproof rock wool gaskets are arranged on sides of the two fixed plates (4) close to each other.

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