Movable closed space detection device for testing sound insulation index of floor or wall

Abstract

The invention discloses a movable closed space detection device for testing the sound insulation index of a floor or a wall, relates to the technical field of architectural acoustic testing, and has the advantages that the height and the length of a fence are adjusted, so that the adaptability of the fence in different rooms is improved. According to the key points of the technical scheme, the fence comprises fences which are mutually spliced on one side of a floor slab and one side of a wall body and form a closed space, and each fence comprises a mounting box with an upward opening and a vertical plate arranged at the upper end of the box wall, opposite to the mounting box, of the mounting box; the two vertical plates are distributed in the length direction of the mounting box, the length of the vertical plates is consistent with that of the mounting box, and extending pieces extending out in the length and height directions of the vertical plates are arranged in the mounting box and the two vertical plates.

Description

Technical Field

[0001] The present invention relates to the technical field of building acoustic testing, in particular to a movable enclosed space detection device for testing the sound insulation of a floor or a wall. Background Art

[0002] In building acoustic testing, accurately measuring the sound insulation of floors or walls is key to evaluating a building's acoustic performance. However, in actual testing, incomplete maintenance structures (such as unfinished room partitions) are often encountered, which poses challenges to on-site testing. Traditional methods often require the construction of temporary enclosures around the test area to create a confined space. However, the length and height of the temporary enclosure are fixed and cannot be used for different room separation sound level tests.

[0003] Therefore, the applicant has developed a new technical solution in the actual production process to solve the above technical problems. Summary of the Invention

[0004] In view of the above-mentioned technical deficiencies, the purpose of the present invention is to provide a movable enclosed space detection device for testing the sound insulation of floors or walls, which has the advantage of adjusting the height and length of the enclosure to improve the adaptability of the enclosure for use in different rooms.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: The present invention provides a movable enclosed space detection device for testing the sound insulation of a floor or wall, comprising enclosures that are spliced ​​together on one side of a floor and a wall to form an enclosed space, each of the enclosures comprising an installation box with an opening facing upward, and vertical panels arranged at the upper ends of box walls that are opposite to the installation box, the two vertical panels being distributed along the length direction of the installation box and having the same length as the installation box, and extension pieces extending along the length and height directions of the vertical panels being provided in the installation box and the two vertical panels.

[0006] By adopting the above technical solution, the enclosure forms an enclosed space on one side of the floor and the wall, which makes it convenient to place the test device in the enclosed space and measure the sound insulation of the floor and the wall. The extension piece extends from between the two vertical plates, thereby changing the height and length of the enclosure, which facilitates transportation and improves the adaptability of the enclosure to different rooms. The device can flexibly adjust the position and size according to the actual situation on site, and is suitable for testing floors and walls of different specifications. In particular, it can quickly build a testing space in complex environments where there is a lack of maintenance structure, solving the problem of traditional testing methods being limited by site conditions.

[0007] Preferably, the extension member includes a lifting plate connected to opposite side surfaces of the two upright plates by a sliding member 1 in a vertical direction, an extension plate connected between the two lifting plates by a sliding member 2 in a horizontal sliding manner, and a movable plate connected to the box wall in the relative length direction of the installation box by a sliding member 3 in a horizontal sliding manner, the longitudinal section of the movable plate is a U-shaped plate with an upward opening, and the extension plate is connected to the opposite inner wall of the movable plate by a sliding member 4 in a vertical sliding manner; A through opening for the movable plate to move out is provided on one side box wall of the installation box.

[0008] Preferably, the bottom of the installation box is provided with a removal opening for the lower end of the movable plate to extend out of the bottom of the installation box, and the bottom of the movable plate is flush with the bottom of the installation box; The outer sides of the two vertical walls of the movable plate are in contact with the plate surfaces of the two vertical plates respectively; The inner sides of the two vertical walls of the movable plate are in contact with the two plate surfaces of the extension plate respectively; The extension plate and the movable plate have the same length direction; The upper end surface of the extension plate is flush with the upper end surface of the lifting plate; The extension plate is provided with a telescopic plate on one side wall of the extension plate as the movable plate moves out of the installation box, and an insertion slot for inserting the telescopic plate is provided on a vertical plate of another enclosure; The installation box is provided with an inserting plate located between the two vertical plates on the upper end surface away from the through-hole, and one side of the two lifting plates is connected by an adjusting plate, and the two ends of the adjusting plate respectively extend to the opposite side of the two vertical plates and the side of the adjusting plate away from the lifting plate extends to a position flush with one side of the two vertical plates, and the side of the adjusting plate away from the lifting plate is also flush with a side wall of the installation box, and a slot for inserting the inserting plate is provided on the adjusting plate.

[0009] Preferably, the telescopic plate includes a moving groove opened on the side surface flush with the extension plate and the moving plate, a resistance plate is slidably connected in the moving groove, and the bottom of the moving groove is provided with several compression springs that enable one end of the resistance plate to move out of the notch of the moving groove.

[0010] Preferably, when testing a floor, a rectangular frame-shaped enclosure is distributed on the upper and lower end surfaces of the floor; when testing a wall, a U-shaped enclosure is distributed on the left and right sides of the wall; The upper and lower ends of each of the above-mentioned enclosures are in contact between the upper and lower floor slabs.

[0011] Preferably, two adjacent enclosures that are perpendicular to each other are placed in such a manner that the extension plate and one side of the movable plate of one enclosure abut against the vertical plate of the other enclosure and the telescopic plate enters the insertion groove, and the two adjacent enclosures that are perpendicular to each other are connected by a connecting piece; The connecting member includes a plurality of angle irons, one side of each angle iron is fixed to the adjustment plate by screws, and the other side is fixed to the vertical plate by screws, and each angle iron is distributed along the height direction of the vertical plate; The connecting member also includes a rectangular frame located in the space formed by the enclosure. The installation box of each enclosure is fixedly connected to the side wall corresponding to the frame by a locking screw. Each enclosure is provided with a limit member for limiting the horizontal movement of the movable plate.

[0012] Preferably, the limit member includes a mounting plate arranged on one of the vertical plates and distributed toward the surface of the movable plate, a pull column is slidably connected to the mounting plate, both ends of the pull column extend out of the mounting plate and one end of the pull column enters the surface of the movable plate, a plurality of entry grooves for one end of the pull column to enter are opened on the surface of the movable plate, the outer sleeve of the pull column is provided with two compression springs that make one end of the pull column contact with the entry groove, the end of the pull column away from the movable plate is provided with a pull disk with a size larger than the diameter of the pull column, the two ends of the compression spring are respectively fixed on the opposite side of the pull disk and the mounting plate, wherein the mounting plates on two enclosures are located on different vertical plates.

[0013] Preferably, the sliding member 1 includes two vertically distributed sliding grooves 1 provided on opposite sides of the two lifting plates, and the two vertical plates are each provided with a slide plate 1 that slides in the sliding groove 1, and the slide plate 1 is a long strip plate, and the length direction of the slide plate is distributed along the height direction of the vertical plate; The second sliding member includes a second slide plate provided on two opposite sides of the extension plate, the length direction of the second slide plate being distributed along the length direction of the extension plate, and a second slide groove for sliding the second slide plate is provided on both the lifting plates, and the second slide plate is distributed near the upper end of the extension plate; The sliding member three includes a slide plate three provided on two opposite sides of the movable plate, the slide plate three being arranged parallel to the slide plate two, and the opposite inner walls of the installation box are provided with a convex plate located below the lifting plate, the convex plates are distributed along the box wall of the installation box, and the two convex plates are provided with a sliding groove three for the sliding of the slide plate three, and the thickness of the convex plates is consistent with the thickness of the lifting plate; The sliding member four includes a sliding groove four opened on the surface of the extension plate, the sliding groove four is distributed along the vertical direction, and the movable plate is provided with a slide plate four sliding in the sliding groove four.

[0014] Preferably, the cross-sections of slide plate 1, slide plate 2, slide plate 3 and slide plate 4 are all T-shaped, and the cross-sections of slide groove 1, slide groove 2, slide groove 3 and slide groove 4 are all T-shaped grooves; a sealing gasket 1 is provided at the upper end of each enclosure, and a sealing gasket 2 is provided on the side of the two adjacent enclosures that conflict with each other.

[0015] Preferably, the installation box, the vertical plate, the extension plate and the movable plate are all provided with a sound insulation board on one side facing the space formed by the multiple enclosures; Alternatively, the installation box, vertical plate, extension plate and movable plate are all made of sound-absorbing panels on the inside and metal plates covering the outside of the sound-absorbing panels on the outside; The extension plate and the movable plate are flush with each other on one side inside the two lifting plates, and a sound insulation baffle is provided on one side inside the two lifting plates, the width of which extends to the opposite side of the two lifting plates. The sound insulation baffle slides on the opposite side of the two lifting plates, and the length of the sound insulation baffle is consistent with the length of the extension plate. The two vertical plates are provided with a second sound insulation baffle extending to one side of the lifting plate on the side where the movable plate moves out. The upper end of the second sound insulation baffle is flush with the vertical plate, and the lower end extends to the convex plate and is connected to the side wall of the convex plate. The plate surface of the sound insulation baffle is in contact with one side of the lifting plate.

[0016] The beneficial effects of the present invention are as follows: the enclosure forms an enclosed space on one side of the floor and the wall, which makes it convenient to place the test device in the enclosed space and measure the sound insulation of the floor and the wall. The extension piece extends from between the two vertical plates, thereby changing the height and length of the enclosure, which facilitates transportation and improves the adaptability of the enclosure for use in different rooms. The device can flexibly adjust the position and size according to the actual situation on site, and is suitable for testing floors and walls of different specifications. In particular, it can quickly build a testing space in a complex environment where there is a lack of maintenance structure, solving the problem that traditional testing methods are limited by site conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the structure of the embodiment used to reflect the shape of the enclosures on both sides of the wall; Figure 2 This is a schematic diagram of the structure of the embodiment used to reflect the shape of the enclosures on the upper and lower sides of the floor; Figure 3 This is a schematic diagram of the structure of the framework of this embodiment; Figure 4 This is a schematic diagram of the structure of the inner frame of the floor enclosure of this embodiment; Figure 5 This is a schematic structural diagram of the extension plate of this embodiment; Figure 6 This is a schematic diagram of the structure of the removal port in this embodiment; Figure 7This is a schematic structural diagram of the mounting plate of this embodiment; Figure 8 This is a schematic structural diagram of an extension plate formed by a sound-absorbing plate and a metal plate according to the present embodiment; Figure 9 This is a schematic structural diagram of the second sound insulation baffle in this embodiment.

[0019] Description of reference numerals: In the figure: 1, enclosure; 11, installation box; 12, vertical plate; 121, lifting plate; 122, extension plate; 1222, sound insulation baffle 1; 1223, sound insulation baffle 2; 123, movable plate; 124, through-hole; 125, removal outlet; 13, insertion slot; 14, insertion plate; 141, adjustment plate; 142, slot; 143, movable slot; 144, contact plate; 145, compression spring 1; 15. Angle iron; 16. Frame; 17. Mounting plate; 171. Pull column; 172. Compression spring 2; 173. Pull plate; 18. Slide 1; 181. Slide plate 1; 182. Slide plate 2; 183. Slide plate 2; 184. Slide plate 3; 185. Protruding plate; 186. Slide plate 3; 187. Slide plate 4; 188. Slide plate 4; 19. Sound-absorbing panel; 191. Metal plate; 2. Floor slab; 3. Wall. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] A movable enclosed space detection device for testing the sound insulation of floors or walls, such as Figure 1 and Figure 2 , including an enclosure 1 that is spliced ​​to one side of a floor slab 2 and a wall 3 to form a closed space; like Figure 1 and Figure 2 When testing the floor 2, the upper and lower end surfaces of the floor 2 are respectively provided with a rectangular frame-shaped enclosure 1; when testing the wall 3, the left and right sides of the wall 3 are respectively provided with a U-shaped enclosure 1; like Figure 1 and Figure 2 The upper and lower ends of each of the above-mentioned enclosures 1 are in contact between the upper and lower floor slabs 2.

[0022] like Figure 5 and Figure 6Each enclosure 1 includes a long strip-shaped installation box 11 with an opening facing upward, and a vertical plate 12 arranged at the upper end of the box wall opposite to the installation box 11. The two vertical plates 12 are distributed along the length direction of the installation box 11 and the length of the vertical plates 12 is consistent with the length of the installation box 11. Extensions extending along the length and height directions of the vertical plates 12 are provided in the installation box 11 and the two vertical plates 12.

[0023] like Figure 5 and Figure 6 The enclosure 1 forms a closed space on one side of the floor 2 and the wall 3, which makes it convenient to place the test device in the closed space and measure the sound insulation of the floor 2 and the wall 3. The extension piece extends from between the two vertical plates 12, thereby changing the height and length of the enclosure 1, which is convenient for transportation and improves the adaptability of the enclosure 1 for use in different rooms. The position and size of the device can be flexibly adjusted according to the actual situation on site, and is suitable for testing floor slabs 2 and walls 3 of different specifications. In particular, the testing space can be quickly built in a complex environment where there is a lack of maintenance structure, which solves the problem that the traditional testing method is limited by site conditions.

[0024] like Figure 5 and Figure 6 The extension member includes a lifting plate 121 connected to the opposite side surfaces of the two vertical plates 12 by sliding member 1, an extension plate 122 connected horizontally between the two lifting plates 121 by sliding member 2, and a movable plate 123 connected horizontally to the box wall of the installation box 11 in the relative length direction by sliding member 3. The longitudinal section of the movable plate 123 is a U-shaped plate with an opening facing upward, and the extension plate 122 is vertically slidably connected to the opposite inner wall of the movable plate 123 by sliding member 4; a through hole 124 for the movable plate 123 to move out is opened on one side wall of the installation box 11; like Figure 5 and Figure 6 , the lifting plate 121 is moved out from above the vertical plate 12 by the sliding member 1, that is, it is pulled out along the height direction of the vertical plate 12, thereby increasing the height of the enclosure 1. At this time, the lifting plate 121 drives the extension plate 122 to move upward together through the sliding member 2, and at the same time, the extension plate 122 is also moved upward in the movable plate 123 by the sliding member 4, thereby adjusting the height of the enclosure 1; like Figure 5 and Figure 6 , the extension plate 122 is pulled out from between the two lifting plates 121 through the sliding member 2, that is, it is pulled out along the length direction of the vertical plate 12, thereby increasing the length of the enclosure 1. At this time, the extension plate 122 drives the movable plate 123 to be pulled out of the installation box 11 horizontally through the sliding member 4, and the movable plate 123 slides in the installation box 11 through the sliding member, thereby adjusting the length of the enclosure 1.

[0025] like Figure 5 and Figure 6 The bottom of the installation box 11 is provided with a removal port 125 for the lower end of the movable plate 123 to extend out of the bottom of the installation box 11, so that the bottom of the movable plate 123 is flush with the bottom of the installation box 11, so that the entire bottom of the enclosure 1 is in contact with the floor 2 below; like Figure 5 and Figure 6 , the outer sides of the two vertical walls of the movable plate 123 are in contact with the plate surfaces of the two vertical plates 12 respectively, so that the position of the movable plate 123 is stable; The inner sides of the two vertical walls of the movable plate 123 are in contact with the two plate surfaces of the extension plate 122 respectively, so as to facilitate the stable lifting of the extension plate 122; like Figure 5 and Figure 6 The extension plate 122 and the movable plate 123 are of the same length, that is, the two sides of the extension plate 122 and the movable plate 123 in the length direction are flush, so that the extension plate 122 and the movable plate 123 become the new side walls of the enclosure 1 after being pulled out of the installation box 11 and the vertical plate 12, and the side walls of the enclosure 1 are flush at this time; like Figure 5 and Figure 6 , the upper end surface of the extension plate 122 is flush with the upper end surface of the lifting plate 121, so that when the lifting plate 121 and the extension plate 122 are pulled out of the vertical plate 12 to become the new top side wall of the enclosure 1, the top side wall of the enclosure 1 is flush, which is convenient for close contact with the top roof. At this time, the upper end of each enclosure 1 is provided with a sealing gasket 1, which is provided on the upper end surface of the extension plate 122 and the upper end surface of the lifting plate 121; like Figure 5 and Figure 6 The mounting box 11 is provided with an inserting plate 14 located between the two vertical plates 12 on the upper end face away from the through-hole 124. One side of the two lifting plates 121 is connected by an adjusting plate 141. The two ends of the adjusting plate 141 extend to the opposite side of the two vertical plates 12 respectively, and the side of the adjusting plate 141 away from the lifting plate 121 extends to a position flush with one side of the two vertical plates 12. The side of the adjusting plate 141 away from the lifting plate 121 is also flush with a side wall of the mounting box 11. The adjusting plate 141 slides between the two vertical plates 12 as the lifting plate 121 rises and falls, and a slot 142 for inserting the inserting plate 14 is opened on the adjusting plate 141; at this time, the plate surface of the adjusting plate 141 and the side walls of the mounting box 11 and the vertical plates 12 become flush side walls of the enclosure 1.

[0026] like Figure 5 and Figure 6 The above structure makes the four side walls of the enclosure 1 flat, making it easier to install later.

[0027] like Figure 5 and Figure 6 and Figure 7 The extension plate 122 is equipped with a telescopic plate on one side wall as the movable plate 123 moves out of the installation box 11. An insertion slot 13 for the telescopic plate is provided on one of the vertical plates 12 of the other enclosure 1. The telescopic plate includes a movable slot 143 provided on the side surface of the extension plate 122 flush with the movable plate 123. The length direction of the movable slot 143 is distributed along the height direction of the extension plate 122 and passes through the upper and lower ends of the extension plate 122. A contact plate 144 is slidably connected in the movable slot 143. The bottom of the movable slot 143 is provided with a plurality of compression springs 145 that force one end of the contact plate 144 to move out of the notch of the movable slot 143.

[0028] like Figure 3 and Figure 4 The placement positions of two adjacent enclosures 1 that are distributed perpendicular to each other are as follows: the extension plate 122 and the movable plate 123 of one enclosure 1 are in contact with the vertical plate 12 of the other enclosure 1, and the telescopic plate enters the insertion groove 13. The insertion groove 13 passes through the vertical plate 12, and the two adjacent enclosures 1 that are distributed perpendicular to each other are connected by a connecting piece.

[0029] like Figure 2 and Figure 3 and Figure 4 On the one hand, the function of the telescopic plate is to facilitate entry into the insertion groove 13, so that when the plate surface of the movable plate 123 conflicts with the plate surface of the vertical plate 12, the end of the telescopic plate away from the extension plate 122 conflicts with the lifting plate 121, so that the two vertically distributed enclosures 1 reach a closed state at the connection point, and the upper end of the telescopic plate is flush with the upper end of the extension plate 122; on the other hand, it is convenient for the enclosure 1 to have a side wall of the extension plate 122 conflict with the wall 3, so that the telescopic plate can move into the extension plate 122, so that the extension plate 122 and the movable plate 123 both conflict with the wall 3, and the telescopic plate moves into the extension plate 122, that is, the conflicting plate 144 moves into the movable groove 143, so that the compression spring 145 is compressed.

[0030] Two adjacent enclosures 1 are equipped with a second sealing gasket on the side where they contact each other. This sealing gasket is installed on the widthwise sidewalls of the movable plate 123, the extension plate 122, and the contact plate 144. Furthermore, a second sealing gasket is also installed on the side where the telescopic plate contacts the wall 3. The second sealing gaskets are distributed along the length of the movable plate 123, the extension plate 122, the contact plate 144, and the telescopic plate.

[0031] like Figure 3 and Figure 4In order to make the structure of the rectangular frame or U-shaped enclosure 1 stable, the connecting parts include several angle irons 15, one side of each angle iron 15 is fixed to the adjustment plate 141 by screws, and the other side is fixed to the vertical plate 12 by screws. The angle irons 15 are distributed along the height direction of the vertical plate 12; since the position of the vertical plate 12 is fixed, when the lifting plate 121 drives the adjustment plate 141 to move to the appropriate height, the adjustment plate 141 is fixed to the vertical plate 12 by the angle irons 15, thereby limiting the position of the lifting plate 121.

[0032] like Figure 3 and Figure 4 In order to fix the position of the installation box 11 of each enclosure 1, the connecting part also includes a rectangular frame 16 located in the space formed by the enclosure 1. The installation box 11 of each enclosure 1 is fixedly connected to the side wall corresponding to the frame 16 by a locking screw. The locking screw first passes through the frame 16 and then is threadedly connected to the side wall of the installation box 11. The rectangular frame 16 can be formed by splicing four aluminum profile rods into a rectangular frame, and the four aluminum profile rods are connected by fastening screws for easy disassembly and installation. Each aluminum profile can also be spliced ​​by several short rods. When the enclosure 1 forms a U shape, there is a gap between the rectangular frame 16 and the wall 3. The installation box 11 of each enclosure 1 is fixed by the frame 16. The upper end of each enclosure 1 is in contact with the roof surface above. Each enclosure 1 is provided with a limiter for limiting the horizontal movement of the movable plate 123.

[0033] like Figure 3 and Figure 4 and Figure 7 The limiting member includes a mounting plate 17 arranged on one of the vertical plates 12 and distributed toward the surface of the movable plate 123. A pull column 171 is slidably connected to the mounting plate 17. Both ends of the pull column 171 extend out of the mounting plate 17 and one end of the pull column 171 enters the surface of the movable plate 123. The surface of the movable plate 123 is provided with a plurality of entry grooves (not shown in the figure) for one end of the pull column 171 to enter. Each entry groove is distributed along the moving direction of the movable plate 123. The outer sleeve of the pull column 171 is provided with a compression spring 172 that makes one end of the pull column 171 contact the entry groove, and the pull column 171 is away from the movable plate 123. One end of the is provided with a pulling plate 173 whose size is larger than the diameter of the pulling column 171, and the two ends of the compression spring 172 are respectively fixed on the opposite side of the pulling plate 173 and the mounting plate 17; when it is necessary to pull out the movable plate 123, the operator pulls the pulling plate 173 so that one end of the pulling column 171 moves out from the entry slot, and the compression spring 172 is compressed and has an elastic restoring force, which makes it easier to pull out the movable plate 123. When the movable plate 123 moves out to the appropriate position, the pulling plate 173 is released, and the elastic restoring force of the compression spring 172 drives one end of the pulling column 171 to move into the entry slot, thereby fixing the position of the movable plate 123.

[0034] like Figure 3 and Figure 4 and Figure 7 , where two mounting plates 17 on the enclosure 1 are located on different vertical plates 12. The purpose of this design is that only one person is required to perform the test.

[0035] like Figures 1 to 7 , taking the floor 2 to be tested as an example, the working steps are: Step 1: First, place and install the rectangular frame 16 on the floor 2 below the floor 2 to be tested; Step 2: First, install the mounting box 11 of the first enclosure 1 on a side wall of the rectangular frame 16. Then, adjust the height of the enclosure 1 according to the height between the two floor slabs 2 so that the top of the first enclosure 1 contacts the lower end surface of the floor slab 2 to be inspected. Then, fix the height of the first enclosure 1 with the angle iron 15, and then adjust the length of the first enclosure 1. Step 3: Install the mounting box 11 of the second enclosure 1 on the other vertical side wall of the rectangular frame 16, adjust the length of the enclosure 1 so that the telescopic plate enters the insertion slot 13 of the first enclosure 1; finally, adjust the height of the second enclosure 1 so that the top of the second enclosure 1 contacts the lower end surface of the floor slab 2 to be inspected, and fix the height of the second enclosure 1 with the angle iron 15; Step 4: Insert the telescopic plate of the third enclosure 1 into the insertion slot 13 of the second enclosure 1 according to the third step, so that the top of the third enclosure 1 contacts the lower end surface of the floor slab 2 to be tested, and fix the height of the third enclosure 1 by the angle iron 15; Step 5: According to the fourth step, insert the telescopic plate of the fourth enclosure 1 into the insertion slot 13 of the third enclosure 1, so that the telescopic plate of the first enclosure 1 is inserted into the insertion slot 13 of the fourth enclosure 1, and the top of the fourth enclosure 1 is in contact with the lower end surface of the floor slab 2 to be tested. The height of the fourth enclosure 1 is fixed by the angle iron 15; Step 6: Limit the length of each enclosure 1 through the limit pieces on each enclosure 1. When the staff needs to enter the confined space formed by the enclosure 1, release the limit of the limit piece located outside the space, push the extension plate 122 and the movable plate 123 into the vertical plate 12, and then open the confined space formed by the enclosure 1, so that the staff can move the detection equipment into the confined space, and then pull the extension plate 122 and the movable plate 123 out of the vertical plate 12 until the limit piece limits the movement of the movable plate 123 and the telescopic plate enters the insertion slot 13 and contacts the lifting plate 121, thereby closing the confined space.

[0036] Step 7: Repeat steps 1 to 6 to build a confined space on the upper end surface of the floor slab 2 to be tested. The upper and lower confined spaces of the floor slab 2 to be tested are relatively distributed, and the placement and positioning can be carried out by means of walls or columns.

[0037] The sound insulation test instrument is an existing instrument: it requires a sound source device with a regular dodecahedron and an amplifier (AHAI2032A), a mother-and-child router, a two-channel collector, and a tablet computer. The router, collector, and sound source device of the sound-generating room are placed in the sound-generating room, and the router and collector of the receiving room are placed in the receiving room. A person operates outdoors with a tablet computer. During the sound insulation test of floor slab 2, the space formed by the enclosure 1 above the floor slab 2 to be tested is the receiving room, and the space enclosed by the enclosure 1 below the floor slab 2 to be tested is the sound-generating room.

[0038] In addition, it can also be used for floor slab 2 impact testing, and only the detection instrument needs to be replaced.

[0039] The installation box 11, vertical plate 12, extension plate 122, and movable plate 123 are all equipped with sound insulation panels (not shown) on one side of the panel surface facing the space formed by the multiple enclosures 1. The sound insulation panels enhance the sound insulation effect of the space enclosed by the enclosures 1, reduce outward noise transmission, and facilitate detection by testing instruments. When each enclosure 1 is installed, the movement of the lifting plate 121, extension plate 122, and movable plate 123 creates multiple cavities within the enclosure 1. Cavities are an important and effective acoustic design method for achieving sound attenuation, converting sound energy into heat or other forms of energy for dissipation. The thickness of the lifting plate 121 is increased.

[0040] Or, as Figure 8 The installation box 11, the vertical plate 12, the extension plate 122 and the movable plate 123 all have a sound-absorbing panel 19 on the inside and a metal plate 191 on the outside covered with the sound-absorbing panel 19. The slide plate 181, the slide plate 2 182, the slide plate 3 184 and the slide plate 4 188 and the slide groove 18, the slide groove 2 183 and the slide groove 3 186 and the slide groove 4 187 are all arranged on the metal plate 191. The metal plate 191 is preferably an aluminum plate, so that the installation box 11, the vertical plate 12, the extension plate 122 and the movable plate 123 themselves have sound insulation performance, which can be selected according to needs.

[0041] like Figure 5 and Figure 6 The sliding member 1 includes two vertically distributed sliding grooves 18 provided on the opposite side surfaces of the two lifting plates 121. The two vertical plates 12 are each provided with a slide plate 181 that slides in the sliding groove 18. The slide plate 181 is a long strip plate, and its length direction is distributed along the height direction of the vertical plate 12. like Figure 5 and Figure 6 The second sliding member includes a second sliding plate 182 provided on two opposite sides of the extension plate 122. The length direction of the second sliding plate 182 is distributed along the length direction of the extension plate 122. The two lifting plates 121 are both provided with a second sliding groove 183 for the second sliding plate 182 to slide. The second sliding plate 182 is distributed near the upper end of the extension plate 122. like Figure 5 and Figure 6 , the sliding member three includes a slide plate three 184 provided on the two opposite sides of the moving plate 123, the slide plate three 184 is distributed parallel to the slide plate two 182, and the opposite inner walls of the installation box 11 are provided with a convex plate 185 located below the lifting plate 121, the convex plate 185 is distributed along the box wall of the installation box 11, and the two convex plates 185 are provided with a sliding groove three 186 for the sliding of the slide plate three 184, the thickness of the convex plate 185 is consistent with the thickness of the lifting plate 121 and when the lifting plate 121 is completely located in the two vertical plates 12, the convex plate 185 and the lifting plate 121 are in contact; or when the lifting plate 121 does not completely enter the two vertical plates 12, that is, when the lifting plate 121 drops to the lowest position, the convex plate 185 and the lifting plate 121 are in contact; like Figure 5 and Figure 6 The sliding member 4 includes a sliding groove 187 provided on the surface of the extension plate 122, and the sliding groove 187 is distributed in the vertical direction. The movable plate 123 is provided with a slide plate 188 that slides in the sliding groove 187.

[0042] like Figure 5 and Figure 6 The cross-sections of slide plate 181, slide plate 2 182, slide plate 3 184 and slide plate 4 188 are all T-shaped, and the cross-sections of chute 18, chute 2 183, chute 3 186 and chute 4 187 are all T-shaped grooves. The chute 18, chute 2 183, chute 3 186 and chute 4 187 are all through grooves, which are convenient for installation and removal.

[0043] like Figure 7 and Figure 9 In addition, in order to increase the sound insulation performance of the enclosure, the extension plate 122 and the movable plate 123 are located flush on one side of the two lifting plates 121, and the extension plate 122 is provided with a sound insulation baffle 1222 on one side of the two lifting plates 121, the width of which extends to the opposite side of the two lifting plates 121. The sound insulation baffle 1222 slides on the opposite side of the two lifting plates 121, and the length of the sound insulation baffle 1222 is consistent with the length of the extension plate 122, that is, the upper and lower ends of the sound insulation baffle 1222 extend to the upper and lower ends of the extension plate 122 respectively, and the two ends of the width direction of the sound insulation baffle 1222 extend to the opposite side of the two lifting plates 121, in order to reduce the gap between the extension plate 122 and the lifting plate 121. Figure 7 and Figure 9As shown, the second slide plate 182 is provided at the upper end of the extension plate 122, and the second chute 183 is provided on the lifting plate 121. In this case, the lifting plate 121 is first provided with a protrusion extending toward the extension plate 122, and then the second chute 183 is opened on the protrusion. The protrusion is located at the inner upper end of the lifting plate 121 and is flush with the upper end of the lifting plate 121. The protrusion contacts one side of the extension plate 122. Therefore, in this case, the upper end of the sound insulation baffle 1222 can be set starting from below the protrusion. like Figure 7 and Figure 9 The two vertical plates 12 are provided with a second sound insulation baffle 1223 extending to one side of the lifting plate 121 on the side where the movable plate 123 moves out. The upper end of the second sound insulation baffle 1223 is flush with the vertical plate 12, and the lower end extends to the convex plate 185 and is connected to the side wall of the convex plate 185. The plate surface of the sound insulation baffle 1223 is in contact with one side of the lifting plate 121, the purpose of which is to reduce the gap between the upper end of the convex plate 185 and the lower end of the lifting plate 121, thereby further improving the sound insulation effect.

[0044] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A movable enclosed space detection device for testing the sound insulation of floors or walls, characterized in that: The invention comprises enclosures (1) which are spliced ​​to each other on one side of a floor slab (2) and a wall (3) to form a closed space, wherein each enclosure (1) comprises an installation box (11) with an opening facing upward, and a vertical plate (12) arranged at the upper end of a box wall opposite to the installation box (11), wherein the two vertical plates (12) are distributed along the length direction of the installation box (11) and the length of the vertical plates (12) is consistent with the length of the installation box (11), and the installation box (11) and the two vertical plates (12) are provided with extension pieces extending along the length and height direction of the vertical plates (12).

2. The movable enclosed space detection device for testing the sound insulation of a floor or wall according to claim 1, characterized in that: The extension member comprises a lifting plate (121) connected to opposite sides of the two vertical plates (12) by sliding member 1 in a vertical direction, an extension plate (122) connected between the two lifting plates (121) by sliding member 2 in a horizontal direction, and a movable plate (123) connected to the box wall of the installation box (11) in a relative length direction by sliding member 3 in a horizontal direction, wherein the longitudinal section of the movable plate (123) is a U-shaped plate with an opening facing upward, and the extension plate (122) is connected to the opposite inner wall of the movable plate (123) by sliding member 4 in a vertical direction. A through opening (124) for the movable plate (123) to be moved out is provided on one side wall of the installation box (11).

3. The movable enclosed space detection device for testing the sound insulation of a floor or wall according to claim 2, characterized in that: The bottom of the installation box (11) is provided with a removal outlet (125) for the lower end of the movable plate (123) to extend out of the bottom of the installation box (11), and the bottom of the movable plate (123) is flush with the bottom of the installation box (11); The outer sides of the two vertical walls of the movable plate (123) are in contact with the plate surfaces of the two vertical plates (12) respectively; The inner sides of the two vertical walls of the movable plate (123) are in contact with the two plate surfaces of the extension plate (122) respectively; The extension plate (122) and the movable plate (123) are consistent in length direction; The upper end surface of the extension plate (122) is flush with the upper end surface of the lifting plate (121); The extension plate (122) is provided with a telescopic plate on a side wall thereof as the movable plate (123) moves out of the installation box (11); and an insertion slot (13) for inserting the telescopic plate is provided on a vertical plate (12) of another enclosure (1); The installation box (11) is provided with an inserting plate (14) located between the two vertical plates (12) on the upper end surface away from the through opening (124), and one side of the two lifting plates (121) is connected by an adjusting plate (141), and both ends of the adjusting plate (141) respectively extend to the side opposite to the two vertical plates (12), and the side of the adjusting plate (141) facing away from the lifting plate (121) extends to a position flush with one side of the two vertical plates (12), and the side of the adjusting plate (141) facing away from the lifting plate (121) is also flush with a side wall of the installation box (11), and a slot (142) for inserting the inserting plate (14) is provided on the adjusting plate (141).

4. The movable enclosed space detection device for testing the sound insulation of a floor or wall according to claim 3, characterized in that: The telescopic plate includes a moving groove (143) provided on a side surface of the extension plate (122) flush with the moving plate (123); a resisting plate (144) is slidably connected in the moving groove (143); and a plurality of compression springs (145) are provided at the bottom of the moving groove (143) for enabling one end of the resisting plate (144) to move out of the notch of the moving groove (143).

5. The movable enclosed space detection device for testing the sound insulation of a floor or wall according to claim 4, characterized in that: When testing the floor slab (2), the upper and lower end surfaces of the floor slab (2) are each provided with a rectangular frame-shaped enclosure (1); when testing the wall (3), the left and right side surfaces of the wall (3) are each provided with a U-shaped enclosure (1); The upper and lower ends of each of the above-mentioned enclosures (1) are in contact between the upper and lower floor slabs (2).

6. The movable enclosed space detection device for testing the sound insulation of a floor or wall according to claim 5, characterized in that: Two adjacent enclosures (1) that are vertically distributed are placed in positions where the extension plate (122) and the movable plate (123) of one enclosure (1) are in contact with the vertical plate (12) of the other enclosure (1) and the telescopic plate is inserted into the insertion groove (13). The two adjacent enclosures (1) that are vertically distributed are connected via a connecting piece. The connecting member comprises a plurality of angle irons (15), one side of each angle iron (15) is fixed to the adjustment plate (141) by screws, and the other side is fixed to the vertical plate (12) by screws, and each angle iron (15) is distributed along the height direction of the vertical plate (12); The connecting member further comprises a rectangular frame (16) located within the space formed by the enclosure (1), the mounting box (11) of each enclosure (1) being fixedly connected to the side wall corresponding to the frame (16) via a locking screw, and each enclosure (1) is provided with a limiting member for limiting the horizontal movement of the movable plate (123).

7. The movable enclosed space detection device for testing the sound insulation of a floor or wall according to claim 6, characterized in that: The limiting member includes a mounting plate (17) arranged on one of the vertical plates (12) and distributed toward the surface of the movable plate (123); a pull column (171) is slidably connected to the mounting plate (17); both ends of the pull column (171) extend out of the mounting plate (17) and one end of the pull column (171) enters the surface of the movable plate (123); a plurality of entry slots for one end of the pull column (171) to enter are provided on the surface of the movable plate (123); and the pull column (171) is provided on the surface of the movable plate (123). The outer sleeve of the column (171) is provided with a compression spring (172) that allows one end of the pull column (171) to abut against the entry groove, and the end of the pull column (171) away from the movable plate (123) is provided with a pull plate (173) whose size is larger than the diameter of the pull column (171), and the two ends of the compression spring (172) are respectively fixed on the opposite side of the pull plate (173) and the mounting plate (17), wherein the mounting plates (17) on two enclosures (1) are located on different vertical plates (12).

8. The movable enclosed space detection device for testing the sound insulation of a floor or wall according to claim 2, characterized in that: The sliding member 1 includes two vertically distributed sliding grooves 1 (18) provided on opposite sides of the two lifting plates (121), and the two vertical plates (12) are both provided with a slide plate 1 (181) that slides in the sliding groove 1 (18), and the slide plate 1 (181) is a long strip plate, and the length direction is distributed along the height direction of the vertical plate (12); The sliding member 2 includes a sliding plate 2 (182) provided on two opposite sides of the extension plate (122), the length direction of the sliding plate 2 (182) is distributed along the length direction of the extension plate (122), and the two lifting plates (121) are both provided with a sliding groove 2 (183) for the sliding plate 2 (182) to slide, and the sliding plate 2 (182) is distributed near the upper end of the extension plate (122); The sliding member three includes a sliding plate three (184) arranged on two opposite sides of the moving plate (123), the sliding plate three (184) is distributed parallel to the sliding plate two (182), and the relative inner walls of the installation box (11) are provided with a convex plate (185) located below the lifting plate (121), the convex plates (185) are distributed along the box wall of the installation box (11), and the two convex plates (185) are provided with a sliding groove three (186) for the sliding of the sliding plate three (184), and the thickness of the convex plate (185) is consistent with the thickness of the lifting plate (121); The sliding member four includes a sliding groove four (187) opened on the surface of the extension plate (122), the sliding groove four (187) is distributed along the vertical direction, and the movable plate (123) is provided with a sliding plate four (188) sliding in the sliding groove four (187).

9. The movable enclosed space detection device for testing the sound insulation of a floor or wall according to claim 8, characterized in that: The cross sections of the slide plate 1 (181), slide plate 2 (182), slide plate 3 (184) and slide plate 4 (188) are all T-shaped, and the cross sections of the chute 1 (18), chute 2 (183), chute 3 (186) and chute 4 (187) are all T-shaped grooves; a sealing gasket 1 is provided at the upper end of each enclosure (1), and a sealing gasket 2 is provided on the side of the two adjacent enclosures (1) that are in contact with each other.

10. The movable enclosed space detection device for testing the sound insulation of a floor or wall according to claim 8, characterized in that: The installation box (11), the vertical plate (12), the extension plate (122) and the movable plate (123) are all provided with a sound insulation plate on one side facing the space formed by the plurality of enclosures (1); Alternatively, the installation box (11), the vertical plate (12), the extension plate (122), and the movable plate (123) all have a sound absorbing plate (19) inside and a metal plate (191) covering the sound absorbing plate (19) outside; The extension plate (122) and the movable plate (123) are flush with each other on one side of the two lifting plates (121), and a sound insulation baffle (1222) having a width extending to the opposite side of the two lifting plates (121) is provided on one side of the extension plate (122) within the two lifting plates (121). The sound insulation baffle (1222) slides on the opposite side of the two lifting plates (121), and the length of the sound insulation baffle (1222) is consistent with the length of the extension plate (122); The two vertical plates (12) are provided with a second sound insulation baffle (1223) extending to one side of the lifting plate (121) on the side where the movable plate (123) moves out. The upper end of the second sound insulation baffle (1223) is flush with the vertical plate (12), and the lower end extends to the convex plate (185) and is connected to the side wall of the convex plate (185). The plate surface of the sound insulation baffle (1223) is in contact with one side of the lifting plate (121).

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