Ventilation pipeline hoisting rod convenient to install and adjust

Abstract

The utility model relates to the technical field of ventilation pipeline hoisting, in particular to a ventilation pipeline hoisting rod convenient to install and adjust, which comprises a screw rod, a hooping circular truncated cone and a taper hole pipe, the hooping circular truncated cone is slidably sleeved on the screw rod, and the taper hole pipe is movably sleeved outside the hooping circular truncated cone. The device is simple in structure, low in cost, convenient and fast to install and adjust, not prone to hurting hands, small in sorting workload, good in installation position adaptability and high in construction efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation duct hoisting, in particular to a ventilation duct hoisting rod which is convenient for installation and adjustment. Background Art

[0002] Ventilation ducts are metal or composite pipes used for ventilation and air-conditioning projects in industrial and civil buildings. They are a type of municipal infrastructure designed to allow indoor and outdoor air to circulate between industrial and civil buildings and reduce the concentration of harmful gases indoors. Generally, ventilation ducts need to be installed at the desired location using a hanging rack.

[0003] The existing common hanging frame consists of an angle iron connected to the lower part of two hanging rods with nuts connected by wires. When it is used, first pre-drill the installation hole at the location where the ventilation duct needs to be installed, and then insert the expansion bolt into the installation hole. The screw rod is fixed at the installation location by the expansion bolt. According to the shape of the pipe, a supporting horizontal plate or a supporting arc plate is selected, and the ventilation duct to be installed is set between the two screw rods in the screw rod group. The ventilation duct is supported by the supporting horizontal plate or the supporting arc plate to complete the installation of the ventilation duct.

[0004] Although the above-mentioned lifting frame has a simple structure, the installation of ventilation ducts usually requires a large number of screw rod groups for lifting, and in order to ensure the normal construction, the prefabricated screw rods are generally longer than the actual lifting length. During installation, the nut needs to be screwed up a long distance at the lower end of each screw rod, which has low construction efficiency and is more laborious and hurtful. In addition, due to the variety of lifting positions, there are installation limitations of simply connecting the screw rods. The cost of prefabricating the screw rods with welded side connecting plates on the upper end is high, and the number of each category needs to be accurately counted in advance and sorted during use, which has poor flexibility and low efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide a ventilation duct hanging rod which is easy to install and adjust, and at least solve the problem of low construction efficiency in the background technology.

[0006] In order to achieve the above purpose, the utility model has the following technical solutions:

[0007] The utility model provides a ventilation duct hanging rod which is easy to install and adjust, comprising a screw rod, a tightening truncated cone and a tapered hole pipe, wherein the tightening truncated cone is slidably sleeved on the screw rod, and the tapered hole pipe is movably sleeved on the outside of the tightening truncated cone.

[0008] Preferably, the tightening cone includes an upper conical portion and a plurality of tightening blocks, the axis of the upper conical portion is provided with a through hole for passing the screw rod, the tightening block includes an elastic sheet and a trapezoidal block connected to the lower end of the elastic sheet, the plurality of tightening blocks surround the through hole, and are evenly connected to the bottom of the upper conical portion through the upper end of the elastic sheet.

[0009] Preferably, the upper portion of the through hole is a bell mouth.

[0010] Preferably, the upper end of the outer circumferential surface of the upper truncated cone portion is provided with a barb for preventing the tapered hole tube from escaping from the clamping truncated cone.

[0011] Preferably, the inner surface of the trapezoidal block is provided with an arc-shaped bar that can engage with the thread on the screw rod.

[0012] Preferably, the tightening cone and the tapered hole tube are both made of engineering plastics.

[0013] Preferably, the engineering plastic is polyester resin.

[0014] Preferably, the screw rod includes a C-shaped joint, and the top and side of the C-shaped joint are provided with connection holes. The connection hole on the top of the C-shaped joint is used to top-mount the C-shaped joint, and the connection hole on the side of the C-shaped joint is used to connect the C-shaped joint to the concrete beam. The bottom of the C-shaped joint is connected to the upper end of the screw rod.

[0015] Preferably, the lower side of the C-shaped joint is connected to the upper end of the screw rod via a nut.

[0016] Preferably, the C-shaped joint is made by punching a channel steel segment.

[0017] Due to the adoption of the above technical solution, the advantages of the utility model are:

[0018] 1. The utility model can more conveniently and quickly control the position adjustment and positioning of the tightening cone on the screw rod by lifting or pressing down the tapered hole tube. Compared with the technology of adjusting the lifting height by screwing a nut on a long screw rod, the utility model is faster and more convenient for the installation and adjustment of the ventilation duct.

[0019] 2. The screw rod included in the utility model can be directly connected to the top explosion expansion screw and fixed to the floor slab, or the C-shaped joint can be fixedly connected to the bottom or side of the lifting position, and the upper end of the screw rod can be connected to the bottom of the C-shaped joint through a nut. It can adapt to various installation positions more flexibly, and does not require precise prefabrication and more sorting work during construction.

[0020] 3. When the upper surface of the tapered hole tube of the utility model is pressed down by the gravity of the ventilation duct through the angle iron, the inner wall of the tapered hole tube will squeeze the outer surface of the trapezoidal block, thereby increasing the clamping force and friction between the tightening cone and the screw rod, thereby achieving a more secure positioning connection.

[0021] 4. The utility model has a simple structure, is easy to use, has a low cost and is easy to promote. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 A schematic axial cross-sectional view of Example 1 of a ventilation duct hanging rod that is easy to install and adjust, provided by an embodiment of the present utility model;

[0024] Figure 2 for Figure 1 Schematic diagram of the three-dimensional structure of the tightened truncated cone;

[0025] Figure 3 A schematic axial cross-sectional view of Example 2 of a ventilation duct hoisting rod that is easy to install and adjust, provided by an embodiment of the present utility model;

[0026] Figure 4 for Figure 3 A schematic diagram of the application status of the ventilation duct lifting rod that is easy to install and adjust and is attached to the concrete beam to lift the ventilation duct.

[0027] In the figure: 1. ventilation duct; 2. angle iron; 3. gap; 4. concrete beam; 10. lifting rod; 11. screw; 12. tightening cone; 121. upper cone; 1211. bell mouth; 1212. barb; 122. tightening block; 1221. elastic sheet; 1222. trapezoidal block; 1223. arc-shaped strip; 13. tapered hole pipe; 14. C-shaped joint; 141. connecting hole; 15. nut. DETAILED DESCRIPTION

[0028] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", "left", "right", "front", "back", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0029] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention can be combined with each other.

[0030] The specific implementation method is now described as follows:

[0031] The utility model provides a ventilation duct hanging rod 10 that is easy to install and adjust. Figure 1 , including a screw rod 11, a tightening cone 12 and a tapered hole tube 13, the tightening cone 12 is slidably sleeved on the screw rod 11, and the tapered hole tube 13 is movably sleeved on the outside of the tightening cone 12.

[0032] The tightening cone 12 includes an upper cone portion 121 and a plurality of tightening blocks 122. The axis of the upper cone portion 121 is provided with a through hole for passing the screw rod 11, and the upper end of the outer circumference of the upper cone portion 121 is provided with a barb 1212; the tightening block 122 includes an elastic sheet 1221 and a trapezoidal block 1222 connected to the lower end of the elastic sheet 1221. The plurality of tightening blocks 122 surround the through hole and are evenly connected to the lower side of the upper cone portion 121 through the upper end of the elastic sheet 1221. The upper part of the through hole is a bell mouth 1211, and the inner surface of the trapezoidal block 1222 is provided with an arc-shaped bar 1223 that can engage with the thread on the screw rod 11. Figure 1 、 Figure 2 .

[0033] In this embodiment, the tightening cone 12 is made of polyester resin; and the tapered hole tube 13 is made of an iron tube.

[0034] The utility model provides a ventilation duct hanging rod 10 that is easy to install and adjust. Figure 3 On the basis of the above embodiment 1, a C-shaped joint 14 is further provided. The C-shaped joint 14 is made of a channel steel section with connecting holes 141 on three sides. The connecting holes 141 on the bottom surface of the C-shaped joint 14 are connected to the upper end of the screw rod 11 through a nut 15.

[0035] When using this utility model, see Figure 4 :

[0036] S1. Hoisting the screw rod 11. According to the size of the ventilation duct to be hoisted and the installation environment, determine the appropriate length of the screw rod 11, the installation position of the holes and the hole spacing, and then drill the holes. The upper end of the screw rod 11 is directly connected to the top explosion expansion screw and fixedly connected to the installation hole drilled in the floor slab. Alternatively, the C-shaped joint 14 can be fixedly connected to the hoisting position, and the upper end of the screw rod 11 is connected to the connection hole 141 on the bottom of the C-shaped joint 14 through the nut 15. This step is the same as the construction process of the prior art;

[0037] S2, the angle iron 2 connects the two adjacent suspended screw rods 11, and the angle iron 2 with holes at both ends is put on one screw rod 11 through the hole on one end thereof, and then the bell mouth 1211 of a tightening truncated cone 12 with a tapered hole tube 13 is facing the lower end of the screw rod 11 connected to the angle iron 2 and is put on the screw rod 11, and continue to push the lower end of the tapered hole tube 13 by hand to lift the tightening truncated cone 12 and one end of the angle iron 2 to the target height, and then use one hand to properly support the lower end of the tightening truncated cone 12, and use the other hand to hold the tapered hole tube 13 and press down to lock the position of the tightening truncated cone 12; then take a tightening truncated cone 12 with a tapered hole tube 13, and follow the above steps to lock the other end of the angle iron 2 on the target height on the other screw rod 11;

[0038] S3. The ventilation duct sections are installed and connected on the angle iron 2, using the same construction process as the prior art.

[0039] The principle of this utility model to achieve convenient positioning and adjustment:

[0040] When the tapered hole tube 13 moves upward, the tapered hole tube 13 no longer applies extrusion force and constraint to the trapezoidal block 1222 on the tightening cone 12, and the arc strip 1223 on the inner surface of the trapezoidal block 1222 is no longer stuck with the thread on the screw rod 11. At this time, the tightening cone 12 can move quickly and freely on the screw rod 11; when the tapered hole tube 13 is forced to move downward, its inner wall squeezes the outside of the trapezoidal block 1222, the trapezoidal block 1222 is constrained by the tapered hole tube 13, and the arc strip 1223 is stuck in the thread of the screw rod 11 and is difficult to come out, thereby realizing the convenient adjustment and positioning of the position of the tightening cone 12 and the tapered hole tube 13 connected to the screw rod 11, thereby realizing the convenient adjustment and positioning of the lifting height of the angle iron 2 used to support the connection of the ventilation duct. Obviously, when the pressure on the top of the tapered hole tube 13 increases, the inner wall of the tapered hole tube 13 will further squeeze the outside of the trapezoidal block 1222, thereby increasing the clamping force and friction between the tightening cone 12 and the screw rod 11, making the positioning connection of the utility model more secure.

[0041] The above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention may be implemented. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. This list of all possible embodiments is not exhaustive. Any obvious variations or modifications arising from the technical solution of the present invention remain within the scope of protection of the present invention.

Claims

1. A ventilation duct hanging rod (10) that is easy to install and adjust, characterized in that: It comprises a screw rod (11), a tightening truncated cone (12) and a tapered hole tube (13). The tightening truncated cone (12) is slidably sleeved on the screw rod (11), and the tapered hole tube (13) is movably sleeved on the outside of the tightening truncated cone (12).

2. The ventilation duct hanging rod (10) that is easy to install and adjust according to claim 1 is characterized in that: The tightening cone (12) includes an upper cone portion (121) and a plurality of tightening blocks (122). The axis of the upper cone portion (121) is provided with a through hole for passing the screw rod (11). The tightening block (122) includes an elastic sheet (1221) and a trapezoidal block (1222) connected to the lower end of the elastic sheet (1221). The plurality of tightening blocks (122) surround the through hole and are evenly connected to the lower side of the upper cone portion (121) through the upper end of the elastic sheet (1221).

3. The ventilation duct hanging rod (10) that is easy to install and adjust as claimed in claim 2 is characterized in that: The upper portion of the through hole is a bell mouth (1211).

4. The ventilation duct hanging rod (10) that is easy to install and adjust according to claim 2 is characterized in that: A barb (1212) is provided at the upper end of the outer peripheral surface of the upper truncated cone portion (121).

5. The ventilation duct hanging rod (10) that is easy to install and adjust according to claim 2 is characterized in that: The inner surface of the trapezoidal block (1222) is provided with an arc-shaped strip block (1223) that can engage with the thread on the screw rod (11).

6. The ventilation duct hanging rod (10) that is easy to install and adjust according to claim 1 is characterized in that: The tightening truncated cone (12) and the tapered hole tube (13) are both made of engineering plastics.

7. The ventilation duct hanging rod (10) that is easy to install and adjust according to claim 1 or 2, characterized in that: The screw rod (11) includes a C-shaped joint (14), the top and side surfaces of the C-shaped joint (14) are provided with connection holes (141), and the bottom of the C-shaped joint (14) is connected to the upper end of the screw rod (11).

8. The ventilation duct hanging rod (10) that is easy to install and adjust according to claim 7 is characterized in that: The lower side of the C-shaped joint (14) is connected to the upper end of the screw rod (11) via a nut (15).

9. The ventilation duct hanging rod (10) that is easy to install and adjust according to claim 7, characterized in that: The C-shaped joint (14) is made by punching a channel steel section.

Images