Ventilation pipeline with anti-falling mechanism

Abstract

The utility model relates to the field of ventilating ducts, in particular to a ventilating duct with an anti-falling mechanism, which comprises a telescopic frame and a connecting frame sliding in the telescopic frame, by arranging the positioning assembly, when the ventilation pipeline falls down due to looseness of a connecting piece or improper installation, the wrapping strip and the abutting strip fall down along with the pipeline at the first time and extrude the air bag to expand, so that the air bag can be completely attached to the surface of the ventilation pipeline; the air bag is adsorbed by utilizing the silica gel characteristic of the air bag, so that the friction force between the air bag and the air duct is increased, and the air duct can be effectively prevented from falling off; in daily use, the arc-shaped clamping plates are matched with the wrapping strips and the abutting strips to abut against and limit the ventilation pipeline, the wrapping strips and the abutting strips are made of rubber, the anti-vibration effect can be achieved, and by means of trapezoidal inverted rubber strips of the wrapping strips and the abutting strips, the effect of stably positioning the ventilation pipeline can be achieved through friction force.

Description

TECHNICAL FIELD

[0001] The utility model relates to a ventilation pipeline field especially a ventilation pipeline with prevent falling mechanism. BACKGROUND

[0002] Ventilation duct is the abbreviation of ventilation pipeline, and is a metal or nonmetal pipeline for ventilation and air conditioning engineering of industrial and civil buildings.

[0003] Through the search, the patent "a kind of electromechanical equipment supporting air pipe installation device of preventing falling" authorized announcement number "CN214579317U", the utility model discloses a kind of electromechanical equipment supporting air pipe installation device of preventing falling, including movable plate a, movable plate b and support plate, the both ends of movable plate a are movably installed with connecting plate a, the front of connecting plate a is fixedly connected with connecting column a, the both ends of movable plate b are movably connected with connecting plate b, the outer wall of one side of connecting plate b is fixedly connected with limit post, the both ends of connecting plate b are fixed with support plate by bolt, the top of support plate is fixed with movable plate c by bolt, one end of movable plate c is installed with connecting plate c, the upper of connecting plate c is installed with threaded rod in penetration, the utility model can drive expansion plate to move by rotating threaded rod, expansion plate moves and can drive connecting column b to move, connecting column b moves and drives limit block b to extrude the air pipe installed in device interior, to fix the air pipe, prevent air pipe from falling when in use, ensure that air pipe can normally operate.

[0004] Although the above-mentioned device can clamp and position the ventilation pipeline by driving two limit blocks, the contact surface between the limit block and the ventilation pipeline is relatively smooth, so when the vertically installed ventilation pipeline falls due to loose connection or improper installation, etc., the ventilation pipeline cannot be effectively supported and limited, which will easily cause damage to the ventilation pipeline, and there is also a safety hazard around the pipeline.

[0005] Therefore, a ventilation pipeline with a fall-preventing mechanism is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model aims to provide a ventilation pipeline with a fall-preventing mechanism to solve the above problems, and improve the problem that the device cannot timely limit when the ventilation pipeline falls due to loose connection or improper installation, etc.

[0007] The utility model realizes the above-mentioned purpose through the following technical solutions, a ventilation pipeline with a fall-preventing mechanism, comprising: a telescopic frame and a connecting frame sliding in the telescopic frame.

[0008] A positioning assembly is arranged at the moving end of the connecting frame;

[0009] The positioning assembly comprises a clamping plate fixedly connected to the moving end of the connecting frame, the clamping plate is hollow, and a wrapping strip and an abutting strip are arranged in the clamping plate respectively.

[0010] Preferably, a sliding groove is formed in the clamping plate, and two sliding strips are slidably connected in the sliding groove, the two sliding strips are fixedly connected to the wrapping strip and the abutting strip respectively, and the wrapping strip and the abutting strip are longitudinally limited through cooperation of the sliding groove and the sliding strips.

[0011] Preferably, the wrapping strip and the abutting strip are both arc-shaped, and three inverted rubber strips are arranged on the surfaces of the wrapping strip and the abutting strip, so that the wrapping strip and the abutting strip can extrude, support and resist vibration of the ventilation pipe through the inverted rubber strips.

[0012] Preferably, the inverted rubber strips of the wrapping strip and the abutting strip are arranged in a stacked manner, and the lengths of the three inverted rubber strips decrease from top to bottom, so that the ventilation pipe can be effectively supported.

[0013] Preferably, a sliding plate is fixedly connected to one side of the wrapping strip, and the sliding plate is located on the outer surface of the clamping plate.

[0014] Preferably, a piston rod is fixedly connected to the lower portion of the sliding plate, a gas cylinder is fixedly connected to the outer surface of the clamping plate, the piston rod penetrates into the gas cylinder, a spring is fixedly connected to the lower end of the piston rod, and the lower end of the gas cylinder is communicated with the air bag through a pipeline, so that the air in the gas cylinder can be injected into the air bag to extrude and limit the ventilation pipe when the ventilation pipe moves downward through cooperation of the piston rod, the gas cylinder and the spring.

[0015] Preferably, three air bags are arranged in a rectangular array, the three air bags are communicated with each other, and the material of the air bag is silica gel, so that the air bag made of silica gel can effectively utilize friction to slow down the downward movement of the ventilation pipe.

[0016] Preferably, a screw rod is fixedly connected to the bearing seat in the telescopic frame, and the surface of the screw rod is threadedly connected with the connecting frame, so that the screw rod can facilitate the worker to adjust the clamping plate to move close to the ventilation pipe and clamp the ventilation pipe.

[0017] The utility model discloses the beneficial effect is:

[0018] 1. By setting up positioning components, when ventilation ducts fall due to loose connections or improper installation, the wrapping strip and abutment strip fall with the duct and compress the airbag to inflate. This allows the airbag to completely adhere to the surface of the ventilation duct, clamping it in multiple directions and using the silicone properties of the airbag to adhere to it, increasing the friction between the airbag and the ventilation duct. This effectively prevents the ventilation duct from falling.

[0019] 2. In daily use, the curved clamping plate, along with the wrapping strip and the abutment strip, is used to abut and limit the ventilation duct. The wrapping strip and the abutment strip are both made of rubber, which can also play a certain role in vibration resistance and improve the stability of the ventilation duct. The trapezoidal inverted rubber strips of the wrapping strip and the abutment strip can increase the friction between them and the ventilation duct, thus achieving a stable positioning effect for the ventilation duct. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a structural schematic diagram of the telescopic frame and connecting frame of this utility model;

[0022] Figure 3 This is a schematic diagram of the positioning component of this utility model;

[0023] Figure 4 This is a schematic diagram of the cylinder structure of this utility model.

[0024] In the diagram: 1. Telescopic frame; 2. Connecting frame; 3. Positioning assembly; 301. Clamping plate; 302. Wrapping strip; 303. Abutment strip; 304. Slide groove; 305. Sliding plate; 306. Cylinder; 307. Piston rod; 308. Spring; 309. Airbag; 310. Slide bar; 4. Lead screw. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] In practical implementation: such as Figures 1-4 As shown, a ventilation duct with an anti-fall mechanism includes: a telescopic frame 1 and a connecting frame 2 that slides inside it; a positioning component 3, which is disposed at the movable end of the connecting frame 2;

[0027] Ventilation duct is a metal or non-metal duct used for ventilation and air conditioning engineering of industrial and civil buildings. Generally, the ventilation duct is installed horizontally, and is basically installed on the roof of the building through a hanger, a supporting shell and bolts. However, some ventilation ducts are installed vertically due to different geographical positions or installation requirements. In order to avoid the phenomenon that the vertically-installed ventilation duct falls due to aging of the connecting part after long-term use, the positioning assembly 3 can avoid the above problems.

[0028] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , the positioning assembly 3 comprises a clamping plate 301 fixedly connected to the moving end of the connecting frame 2. The clamping plate 301 is hollow. The clamping plate 301 is provided with a wrapping strip 302 and an abutting strip 303. The lower part of the clamping plate 301 is provided with a slot. The slot of the clamping plate 301 is provided with an air bag 309 for abutting and limiting the ventilation duct when it falls. The clamping plate 301 is provided with a sliding groove 304. The sliding groove 304 is slidably connected with a sliding strip 310. The clamping plate 301 is provided with two sliding strips 310. The two sliding strips 310 are fixedly connected with the wrapping strip 302 and the abutting strip 303, respectively.

[0029] The wrapping strip 302 and the clamping plate 301 are both arc-shaped. The surfaces of the wrapping strip 302 and the abutting strip 303 are provided with three inverted rubber strips. The three inverted rubber strips of the wrapping strip 302 and the abutting strip 303 are arranged in a superimposed manner. The lengths of the three inverted rubber strips decrease from top to bottom.

[0030] The surfaces of the wrapping strip 302 and the abutting strip 303 are provided with three inverted rubber strips. When the clamping plate 301 approaches the ventilation duct, the rubber strips can be used to extrude the ventilation duct. The angles of the three rubber strips are all upward, which can provide effective support force for the ventilation duct. The rubber material can also reduce the vibration of the ventilation duct when the gas flows in the ventilation duct, thereby maintaining the stability of the ventilation duct.

[0031] One side of the wrapping strip 302 is fixedly connected with a sliding plate 305. The sliding plate 305 is located on the outer surface of the clamping plate 301. The lower part of the sliding plate 305 is fixedly connected with a piston rod 307. The outer surface of the clamping plate 301 is fixedly connected with an air cylinder 306. The piston rod 307 penetrates into the air cylinder 306. The lower end of the piston rod 307 is fixedly connected with a spring 308. The lower end of the air cylinder 306 is connected with the air bag 309 through a pipeline. The air bag 309 is arranged in a rectangular array. Three air bags 309 are connected with each other. The material of the air bag 309 is silica gel.

[0032] If the subsequent ventilation pipeline falls due to loose connection or improper installation, the wrapping strip 302 and the abutting strip 303 move downward together with the ventilation pipeline, then the sliding plate 305 behind the wrapping strip 302 drives the piston rod 307 to move downward in the cylinder 306, the gas in the cylinder 306 is injected into the air bag 309 through the pipeline to make the air bag 309 swell and contact the ventilation pipeline, because the material of the air bag 309 is silica gel, so after the air bag 309 contacts the ventilation pipeline, the friction force can slow down the downward speed of the ventilation pipeline, if the ventilation pipeline continues to move downward, the air bag 309 continues to inject gas into the air bag 309, and the air bag 309 will squeeze the ventilation pipeline, so the ventilation pipeline is squeezed and positioned.

[0033] The telescopic frame 1 is fixedly connected with a lead screw 4 through a bearing seat, and the surface of the lead screw 4 is threadedly connected with the connecting frame 2.

[0034] Working principle: when the staff needs to position the ventilation pipeline, first adjust the length of the telescopic frame 1 to adapt to the ventilation pipeline, then relatively close the two telescopic frames 1 until the four clamping plates 301 are attached to the surface of the ventilation pipeline, at this time the wrapping strip 302 and the abutting strip 303 contact the ventilation pipeline, the inverted rubber strips on the surfaces of the wrapping strip 302 and the abutting strip 303 contact the surface of the ventilation pipeline to generate friction, and also support the ventilation pipeline, after the staff fastens the two telescopic frames 1 through the connecting piece, the ventilation pipeline is tightly positioned, if the subsequent ventilation pipeline falls due to loose connection or improper installation, at this time the wrapping strip 302 and the abutting strip 303 move downward together with the ventilation pipeline, then the sliding plate 305 behind the wrapping strip 302 drives the piston rod 307 to move downward in the cylinder 306, the gas in the cylinder 306 is injected into the air bag 309 through the pipeline to make the air bag 309 swell and contact the ventilation pipeline, because the material of the air bag 309 is silica gel, so after the air bag 309 contacts the ventilation pipeline, the friction force can slow down the downward speed of the ventilation pipeline, if the ventilation pipeline continues to move downward, the air bag 309 continues to inject gas into the air bag 309, and the air bag 309 will squeeze the ventilation pipeline, so the ventilation pipeline is squeezed and positioned, thereby achieving the effect of preventing the ventilation pipeline from falling.

[0035] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A ventilation duct with an anti-fall mechanism, characterized in that, include: Telescopic frame (1) and connecting frame (2) that slides inside it; Positioning component (3), the positioning component (3) is disposed on the moving end of the connecting frame (2); The positioning component (3) includes a clamping plate (301) fixedly connected to the moving end of the connecting frame (2). The clamping plate (301) is hollow. A wrapping strip (302) and an abutment strip (303) are respectively provided in the clamping plate (301). The lower middle part of the clamping plate (301) is slotted. An airbag (309) for abutting and limiting the pipe when it falls is provided in the slot of the clamping plate (301).

2. A ventilation duct with an anti-fall mechanism according to claim 1, characterized in that: The clamping plate (301) has a sliding groove (304), and a slide bar (310) is slidably connected in the sliding groove (304). There are two slide bars (310), and the two slide bars (310) are fixedly connected to the wrapping strip (302) and the abutment strip (303) respectively.

3. A ventilation duct with an anti-fall mechanism according to claim 1, characterized in that: The wrapping strip (302) and the clamping plate (301) are both arc-shaped, and the surfaces of the wrapping strip (302) and the abutment strip (303) are each provided with three inverted rubber strips.

4. A ventilation duct with an anti-fall mechanism according to claim 1, characterized in that: The inverted rubber strips of the wrapping strip (302) and the abutment strip (303) are stacked, and the lengths of the three inverted rubber strips decrease sequentially from top to bottom.

5. A ventilation duct with an anti-fall mechanism according to claim 1, characterized in that: A sliding plate (305) is fixedly connected to one side of the wrapping strip (302), and the sliding plate (305) is located on the outer surface of the clamping plate (301).

6. A ventilation duct with an anti-fall mechanism according to claim 5, characterized in that: A piston rod (307) is fixedly connected to the lower part of the sliding plate (305), and a cylinder (306) is fixedly connected to the outer surface of the clamping plate (301). The piston rod (307) passes through the cylinder (306), and a spring (308) is fixedly connected to the lower end of the piston rod (307). The lower end of the cylinder (306) is connected to the airbag (309) through a pipe.

7. A ventilation duct with an anti-fall mechanism according to claim 1, characterized in that: The airbags (309) are arranged in a rectangular array of three, and the three airbags (309) are interconnected. The airbags (309) are made of silicone.

8. A ventilation duct with an anti-fall mechanism according to claim 1, characterized in that: The telescopic frame (1) is fixedly connected to a lead screw (4) via a bearing seat, and the surface of the lead screw (4) is threadedly connected to the connecting frame (2).

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