Ventilation pipe sound insulation layer laying device

Abstract

The utility model provides a ventilation pipe sound insulation layer laying device which comprises a pair of supporting plates which are vertically arranged and parallel to each other, the middle sections of the supporting plates are each provided with an ejector rod in a penetrating mode, the ejector rods are coaxially arranged, the ejector rods rotate around the axis and move along the axis, the front ends of the ejector rods are located between the two supporting plates, and the outer contour of the front end of each ejector rod is of a conical structure; a cross beam parallel to the ejector rods is arranged between the two supporting plates, the two ends of the cross beam are connected to the upper sections of the two supporting plates in a sliding mode in the vertical direction, and a vertically-downward scraping plate is arranged on the bottom face of the middle section of the cross beam. According to the scheme, the sound insulation layer can be laid on the ventilation pipe more smoothly, and therefore the sound insulation effect is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of ventilation pipe sound insulation layer laying devices, in particular to a ventilation pipe sound insulation layer laying device. Background Art

[0002] During the construction of ventilation ducts, in order to reduce the noise generated by the airflow inside the ventilation ducts, a sound insulation layer is usually laid on the outside of the ventilation ducts. The sound insulation layer is usually provided with adhesive backing to facilitate its attachment to the ventilation ducts. To ensure the sound insulation effect, the sound insulation layer needs to be evenly attached to the surface of the ventilation duct during laying. However, in the existing construction, the sound insulation layer is mainly laid manually, and wrinkles and partial untightening are prone to occur during the laying of the sound insulation layer, which results in reduced sound insulation effect. Utility Model Content

[0003] In order to solve the deficiencies of the prior art, the utility model provides a ventilation duct sound insulation layer laying device, which can make the sound insulation layer more evenly laid on the ventilation duct, thereby ensuring the sound insulation effect.

[0004] In order to achieve the purpose of this utility model, the following scheme is proposed:

[0005] A device for laying a sound insulation layer for a ventilation duct comprises: a pair of vertically arranged and mutually parallel support plates, the middle sections of the support plates are each penetrated by a coaxially arranged top rod, the top rod is arranged to rotate around an axis, and the top rod is arranged to move along the axis, the front end of the top rod is located between the two support plates, the front end outer contour of the top rod is a conical structure, and the cone tops of the top rod are arranged oppositely, a cross beam parallel to the top rod is arranged between the two support plates, the two ends of the cross beam are slidably connected to the upper sections of the two support plates in a vertical direction, and a scraper pointing vertically downward is provided on the bottom surface of the middle section of the cross beam.

[0006] The beneficial effects of the utility model are as follows: the scraper lays the sound insulation layer evenly on the surface of the ventilation duct to prevent the sound insulation layer from generating wrinkles, and utilizes the pressure of the scraper to make the sound insulation layer firmly adhere to the ventilation duct to avoid the phenomenon that the sound insulation layer and the ventilation duct are partially not adhered to each other, thereby improving the sound insulation effect of the ventilation duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present invention.

[0008] Figure 1 Shown is a schematic diagram of the overall structure of the present application.

[0009] Markings in the figure: support plate -1, strip hole -11, top rod -2, annular groove -21, cross beam -3, scraper -31, guide rod -32, scraper rod -33, pressure spring -4, locking screw -5, latch -6, cross rod -7, bracket -71, bottom plate -8. DETAILED DESCRIPTION

[0010] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings, but the embodiments described in the utility model are only part of the embodiments of the utility model, rather than all the embodiments.

[0011] like Figure 1 As shown, a ventilation duct sound insulation layer laying device comprises: a pair of vertically arranged and mutually parallel support plates 1, the middle sections of the support plates 1 are penetrated by coaxially arranged top rods 2, the top rods 2 are arranged to rotate around the axis, and the top rods 2 are arranged to move along the axis, the front end of the top rod 2 is located between the two support plates 1, the front end outer contour of the top rod 2 is a conical structure, and the cone tops of the top rods 2 are arranged oppositely, a cross beam 3 parallel to the top rod 2 is arranged between the two support plates 1, the two ends of the cross beam 3 are slidably connected to the upper sections of the two support plates 1 in the vertical direction, and the bottom surface of the middle section of the cross beam 3 is provided with a vertically downward scraper 31.

[0012] Before laying the sound insulation layer, firstly set the ventilation pipe between the two push rods 2, move the push rod 2 along the axis, and use the front end of the push rod 2 to press the two ends of the ventilation pipe tightly, and the outer contour of the tapered structure at the front end of the push rod 2 can adapt to ventilation pipes with different diameter cross-sectional sizes. For example, when the ventilation pipe is a round pipe structure, the tapered structure can be used to adapt to round pipes with different inner diameters to increase the practicality of the device; after the ventilation pipe is fixed, the front end of the sound insulation layer is inserted between the scraper 31 and the outer wall of the ventilation pipe, the adhesive backing of the sound insulation layer contacts the outer wall of the ventilation pipe, and the height of the crossbeam 3 is adjusted in the vertical direction so that the scraper 31 presses the sound insulation layer tightly against the ventilation pipe. The outer wall of the ventilation pipe; then rotate the two top rods 2 to drive the ventilation pipe to rotate, or directly rotate the ventilation pipe manually, the rotation direction is consistent with the direction of the front end of the sound insulation layer, and the sound insulation layer that has been bonded to the ventilation pipe is used to drive the rear sound insulation layer to rotate with the ventilation pipe. During the rotation process, the scraper 31 will continue to squeeze the sound insulation layer so that the sound insulation layer is laid flat on the surface of the ventilation pipe to prevent the sound insulation layer from wrinkling, and the pressure of the scraper 31 is used to make the sound insulation layer firmly bonded to the ventilation pipe to avoid the phenomenon that the sound insulation layer and the ventilation pipe are partially not bonded, so as to improve the sound insulation effect of the ventilation pipe.

[0013] Preferably, Figure 1As shown, the upper section of the support plate 1 is provided with strip holes 11 in the vertical direction, and the two ends of the cross beam 3 are respectively inserted into the corresponding strip holes 11, and pressure springs 4 are provided above the cross beam 3 inside the strip holes 11 for applying downward pressure to the cross beam 3. At the same time, it can be adaptively stretched and / or compressed according to ventilation pipes of different cross-sectional sizes to adapt to ventilation pipes of different cross-sectional sizes.

[0014] Further preferably, Figure 1 As shown, vertical guide rods 32 are provided at the tops of both ends of the cross beam 3, and the pressure spring 4 is a cylindrical spring. The guide rods 32 are inserted into the corresponding pressure springs 4, and the guide rods 32 pass upward through the top of the support plate 1 to ensure the connection stability between the cross beam 3 and the support plate 1, and prevent the pressure spring 4 from twisting and deforming.

[0015] Preferably, Figure 1 As shown, scraper rods 33 are provided on the outside of the scraper plates 31 at both ends of the cross beam 3 in the vertical direction, and the scraper rods 33 are arranged to move in the vertical direction. The scraper rods 33 are parallel to the scraper plates 31, and a plurality of scraper rods 33 are arranged along the length direction of the cross beam 3. A locking screw 5 is provided on the side of the cross beam 3 corresponding to each scraper rod 33, so as to independently control the position of each scraper rod 33. The purpose of arranging the scraper rods 33 on the outside of the scraper plates 31 is to adapt to ventilation pipes of different lengths so that the scraper rods 33 cover both ends of the ventilation pipes. Because the front end outer contour of the top rod 2 is a conical structure, when the length of the ventilation pipe changes greatly, the scraper plates 31 cannot adapt, because once the scraper plates 31 are too long and the cross-sectional contour of the ventilation pipe is small, it is very likely that the scraper plates 31 will interfere with the top rod 2. The scraper rods 33 with adjustable positions can be adjusted according to the length of the ventilation pipe. By adjusting the number of scraper rods 33 in contact with the sound insulation layer, the interference between the scraper rods 33 and the top rod 2 can be effectively prevented.

[0016] Preferably, Figure 1 As shown, the cross-section of the front end of the push rod 2 is a "cross" shaped structure, and the front end of the cross structure has a chamfered structure so that the outer contour of the front end of the push rod 2 forms a conical structure. The cross-section of the front end of the push rod 2 is designed to be a "cross" shape, so that the front end of the push rod 2 can be connected to a ventilation pipe with a circular cross-section and a positive direction, so as to increase the application range of the device.

[0017] Preferably, Figure 1 As shown, the rod portion of the push rod 2 is provided with multiple circles of annular grooves 21 at intervals, and a latch 6 is passed through the side of the support plate 1. The front end of the latch 6 is inserted into the annular groove 21 to limit the position of the push rod 2 along the axis and ensure that the push rod 2 can rotate around the axis.

[0018] Preferably, Figure 1 As shown, a horizontal cross bar 7 is provided on one side of the support plate 1, and the cross bar 7 is used to install the sound insulation layer roll.

[0019] Further preferably, Figure 1 As shown, the crossbar 7 is disposed on a pair of brackets 71, and the brackets 71 and the support plate 1 are disposed on the same bottom plate 8 to facilitate overall transfer.

[0020] The above is only a preferred embodiment of the utility model, and does not mean that it is the only one or limit the utility model. Those skilled in the art should understand that various changes or equivalent replacements made to the utility model without departing from the scope of the utility model are within the scope of protection of the utility model.

Claims

1. A device for laying a sound insulation layer of a ventilation pipe, characterized in that: include: A pair of support plates (1) are arranged vertically and parallel to each other, and a coaxially arranged top rod (2) is passed through the middle section of each support plate (1). The top rod (2) is arranged to rotate around an axis and to move along the axis. The front end of the top rod (2) is located between the two support plates (1). The outer contour of the front end of the top rod (2) is a conical structure, and the cone tops of the top rod (2) are arranged opposite to each other. A cross beam (3) parallel to the top rod (2) is arranged between the two support plates (1), and the two ends of the cross beam (3) are slidably connected to the upper sections of the two support plates (1) in a vertical direction. A scraper (31) is arranged vertically downward on the bottom surface of the middle section of the cross beam (3).

2. A ventilation pipe sound insulation layer laying device according to claim 1, characterized in that: The upper section of the support plate (1) is provided with strip holes (11) in the vertical direction, the two ends of the cross beam (3) are respectively inserted into the corresponding strip holes (11), and pressure springs (4) are provided above the corresponding cross beams (3) in the strip holes (11).

3. A ventilation pipe sound insulation layer laying device according to claim 2, characterized in that: A guide rod (32) in a vertical state is provided at the top of both ends of the cross beam (3); the pressure spring (4) is a cylindrical spring; the guide rod (32) is inserted into the corresponding pressure spring (4), and the guide rod (32) passes through the top of the support plate (1) upwards.

4. A ventilation pipe sound insulation layer laying device according to claim 1, characterized in that: Scraping rods (33) are provided along the vertical direction on the outside of the scraper plates (31) at both ends of the cross beam (3), corresponding to the ends thereof. The scraper plates (33) are arranged to move along the vertical direction. The scraper plates (33) are parallel to the scraper plates (31), and a plurality of scraper plates (33) are arranged along the length direction of the cross beam (3). A locking screw (5) is provided on the side surface of the cross beam (3) corresponding to each scraper plate (33).

5. A ventilation pipe sound insulation layer laying device according to claim 1, characterized in that: The cross section of the front end of the push rod (2) is a "cross" shaped structure, and the front end of the cross structure has a chamfered structure.

6. A ventilation pipe sound insulation layer laying device according to claim 1, characterized in that: The rod portion of the push rod (2) is provided with a plurality of annular grooves (21) at intervals, and a latch (6) is provided through the side surface of the support plate (1), and the front end of the latch (6) is inserted into the annular groove (21).

7. A ventilation pipe sound insulation layer laying device according to claim 1, characterized in that: A horizontal crossbar (7) is provided on one side of the support plate (1), and the crossbar (7) is used to install a sound insulation layer roll.

8. A ventilation pipe sound insulation layer laying device according to claim 7, characterized in that: The crossbar (7) is arranged on a pair of brackets (71), and the brackets (71) and the support plate (1) are arranged on the same bottom plate (8).

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