Sound insulation performance detection equipment for sound insulation door and window sales

Abstract

The invention relates to the technical field of door and window sound insulation detection, in particular to sound insulation performance detection equipment for sound insulation door and window sales, and solves the problem that an existing detection device cannot fix and clamp doors and windows of different sizes. The sound insulation performance detection equipment comprises a sound insulation box, a first U-shaped plate and two second U-shaped plates are arranged in the sound insulation box, and a sound outlet is formed in the front side wall of the sound insulation box; a placing opening is formed in the upper side wall of the soundproof box, a door and window sample is detachably connected to the first U-shaped plate, and a cover plate is arranged at the upper end of the second U-shaped plate; an L-shaped plate and a push plate are slidably connected into the soundproof box, a spring is arranged between the push plate and the vertical portion of the L-shaped plate, a baffle and a sealing gasket are slidably connected to the horizontal portion of the L-shaped plate, a sound player is arranged on the vertical portion of the L-shaped plate, and the left end and the right end of the push plate are hinged to the baffle through connecting rods. According to the invention, frames of door and window samples with different sizes can be clamped and sealed, so that the detection result of the sound insulation performance is more accurate, and workers can conveniently transfer the samples to different positions.

Description

Technical Field

[0001] The present invention relates to the technical field of door and window sound insulation detection, and in particular to a sound insulation performance detection device for sound insulation doors and windows. Background Art

[0002] The sound insulation performance test of doors and windows is an important part of ensuring that door and window products can meet specific sound insulation requirements. Through professional sound insulation performance testing, the ability of doors and windows to block sound transmission can be evaluated to ensure that they meet the expected sound insulation level, thereby improving the comfort of the living or working environment. In the process of decoration, many families usually choose soundproof glass when choosing door and window glass to avoid being disturbed by outdoor noise, and use double-layer hollow laminated glass to improve the sound insulation effect of the door and window system. However, the actual sound insulation effect is affected by the materials and processing technology and appears uneven.

[0003] At present, the sound insulation performance test of glass is mainly carried out in a sound insulation laboratory, which is mainly composed of a sound wave generating box, a computer and a test box. During the test, a few glass doors and windows are randomly sampled, and then the test pieces are installed in the opening with positioning strips. After curing, the test is carried out. The construction cost of this professional sound insulation laboratory is high. At the same time, the device is fixed as a whole, and the device is not convenient to transfer. The testers need to transport the produced samples to the laboratory for testing, which cannot meet the testing needs of the testers. Some door and window sound insulation performance testing devices on the market are fixed in size and can only be used for testing doors and windows of fixed sizes. The panels of doors and windows have many different sizes. When testing the sound insulation performance, it is not convenient to fix and clamp doors and windows of different sizes. It is necessary to select different types of testing devices according to different sizes, and the scope of application is relatively low.

[0004] Therefore, the present invention provides a sound insulation performance detection device for sound insulation doors and windows for sale to solve the above problems. Summary of the invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a sound insulation performance testing device for sound insulation doors and windows for sale, so as to solve the problem that the above-mentioned existing testing devices cannot fix and clamp doors and windows of different sizes.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

[0007] A sound insulation performance testing device for soundproof doors and windows for sale, comprising a sound insulation box, a first U-shaped plate in the left and right directions and with an opening facing upwards is provided at the bottom of the sound insulation box, a second U-shaped plate in the up and down directions is slidably connected to the left and right parts of the sound insulation box, the two second U-shaped plates can move in opposite directions or in opposite directions, the left and right openings of the two second U-shaped plates are opposite to each other, the lower end surface of the second U-shaped plate is fitted with the inner surface of the first U-shaped plate, a sound outlet located between the two second U-shaped plates is provided on the front side wall of the sound insulation box, a placement opening located directly above the two second U-shaped plates and in the left and right directions is provided on the upper side wall of the sound insulation box, a door and window sample located between the two second U-shaped plates is detachably connected to the first U-shaped plate, the upper end of the door and window sample extends out of the placement opening, a left and right cover plate is provided on the upper end of the second U-shaped plate, and the cover plate is located so as to cover the edge portions on both sides of the placement opening;

[0008] The upper inner part of the soundproof box is provided with two cylindrical rods in the front-to-back direction and opposite to each other left and right, the two cylindrical rods are located behind the door and window samples, an L-shaped plate is slidably connected to the two cylindrical rods, the horizontal part of the L-shaped plate can contact the rear end surface of the door and window sample, the left and right ends of the horizontal part of the L-shaped plate are laterally slidably connected with baffles in the left and right directions, the two baffles are provided with sealing gaskets at the opposite ends, the vertical part of the L-shaped plate is provided with a sound player, the two cylindrical rods are provided with a push plate located behind the L-shaped plate and capable of moving forward and backward, the cylindrical rods are provided with a spring located between the push plate and the vertical part of the L-shaped plate, the left and right ends of the push plate are hinged with connecting rods, and the free ends of the connecting rods are hingedly connected to the baffles on the corresponding sides.

[0009] Preferably, the left and right ends of the sound insulation box are both provided with a first waist-shaped ring in the up-down direction, the two second U-shaped plates are both provided with a second waist-shaped ring in the up-down direction, the left and right parts of the sound insulation box are both laterally slidably connected with an X-shaped unit located between the first waist-shaped ring and the second waist-shaped ring, each free end of the X-shaped unit is provided with a front-to-back axial plug column, one side of the plug column is located in the first waist-shaped ring, and the other side of the plug column is located in the second waist-shaped ring, the sound insulation box is rotatably connected to a turntable located between the two X-shaped units, and the left and right parts of the turntable are both hinged with pull rods The free end of the pull rod is hingedly connected to the middle part of the X-shaped unit on the corresponding side. When the turntable rotates clockwise, the turntable drives the two pull rods to move in opposite directions, and the pull rod drives the middle part of the X-shaped unit on the corresponding side to move. The two X-shaped units gradually shrink, and the X-shaped unit drives the second waist-shaped ring on the corresponding side to move through the plug column, and the two second waist-shaped rings drive the two second U-shaped plates to move in opposite directions. When the turntable rotates counterclockwise, the turntable drives the two pull rods to move in opposite directions, and the pull rods drive the two second U-shaped plates to move in opposite directions through the X-shaped unit.

[0010] Preferably, a rotating shaft coaxial with the turntable is provided in the soundproof box, the rotating shaft is fixedly connected to the turntable, the rear end of the rotating shaft extends out of the soundproof box and is provided with a first hand wheel. When the staff turns the first hand wheel, the first hand wheel can drive the rotating shaft to rotate, and the rotating shaft drives the turntable to rotate, thereby facilitating the staff to control the rotation of the turntable in the soundproof box.

[0011] Preferably, both the upper and lower parts of the sound insulation box are provided with guide cross bars in the left and right directions, and both the upper and lower parts of the second U-shaped plate are provided with guide blocks, and the guide blocks are slidably connected to the guide cross bars on the corresponding sides, thereby realizing a lateral sliding connection between the second U-shaped plate and the sound insulation box without contact, and the two guide cross bars make the lateral sliding of the second U-shaped plate more stable.

[0012] Preferably, the horizontal portion of the L-shaped plate is provided with two sliding grooves in left and right directions and opposite to each other, and the upper portion of the baffle is located in the sliding grooves and is slidably connected to the sliding grooves, thereby realizing a transverse sliding connection between the baffle and the horizontal portion of the L-shaped plate.

[0013] Preferably, a lead screw located between the two cylindrical rods and axially arranged in the front-to-back direction is rotatably connected inside the sound insulation box, the lead screw is threadedly connected to the push plate, the rear end of the lead screw extends out of the sound insulation box and is provided with a second hand wheel. When the staff turns the second hand wheel, the second hand wheel drives the lead screw to rotate, and the lead screw drives the push plate to move, that is, the staff can turn the second hand wheel to drive the push plate to move forward and backward.

[0014] Preferably, the vertical portion of the L-shaped plate is provided with a circular hole which is coaxial with the lead screw and passes through from front to back, and the lead screw passes through the center of the circular hole. The circular hole can prevent the L-shaped plate from colliding with the lead screw when moving.

[0015] Preferably, sound insulation cotton is provided on the inner surfaces of the first U-shaped plate and the second U-shaped plate, and the sound insulation cotton can fill the gap between the first U-shaped plate, the second U-shaped plate and the door and window samples, thereby enhancing the sealing effect of the sound insulation box and making the detection result more accurate.

[0016] Preferably, the opening ends of the first U-shaped plate and the second U-shaped plate are both in a gradually opening and tilting shape, so as to facilitate clamping the frame of the door and window sample in the first U-shaped plate and the second U-shaped plate.

[0017] Preferably, a plurality of universal wheels distributed in a rectangular array are provided at the lower end of the soundproof box, so as to facilitate the staff to push the door and window samples to different positions for testing.

[0018] The beneficial effects of the present invention are:

[0019] 1. The first U-shaped plate and the placement opening provided in the present invention can limit the position of the door and window sample in the front and rear directions, seal the lower frame of the door and window sample, so that the door and window sample is located between the two second U-shaped plates. The two second U-shaped plates can push the door and window sample to between the sound outlet and the sound player, and seal the left and right frames of the door and window sample. The staff can control the distance between the two second U-shaped plates by turning the first hand wheel. When testing the sound insulation performance, doors and windows of different sizes can be fixed and clamped, thereby expanding the application scope of the device. Sound insulation cotton is provided on the inner surfaces of the first U-shaped plate and the second U-shaped plate, which can improve the sealing effect on the frame of the door and window sample, thereby enhancing the sealing function of the sound insulation box. The L-shaped plate and two baffles can contact the glass surface in the middle of the door and window sample, seal the upper part of the door and window sample, and seal the door and window sample in four directions, so that the sound insulation performance test result of the door and window sample is more accurate.

[0020] 2. The present invention is provided with a plurality of universal wheels, so that the staff can push the sound insulation box equipped with the door and window samples to different testing positions, and then test the sound insulation performance of the door and window samples to meet the testing needs of the testers. The provided spring can push the L-shaped plate forward when the push plate moves forward, and when the horizontal part of the L-shaped plate contacts the door and window samples, the two baffles are pushed apart gradually, thereby blocking the gap on the upper part of the door and window samples, and can be suitable for door and window samples of different sizes.

[0021] 3. The turntable, pull rod and X-shaped unit provided in the present invention enable the staff to drive the two second U-shaped plates to move through the X-shaped unit only by turning the first hand wheel, and the moving distance of the second U-shaped plate is twice the moving distance of the middle part of the X-shaped unit, which can significantly improve the efficiency of the staff in adjusting the second U-shaped plate. The guide cross bars and guide blocks provided enable the two second U-shaped plates to move left and right only along the distribution direction of the guide cross bars, and there are two upper and lower guide cross bars, which can improve the stability of the second U-shaped plate when moving. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a main axonometric schematic diagram of the present invention.

[0023] Figure 2 It is a front view cutaway axonometric schematic diagram of the present invention.

[0024] Figure 3 It is a left-side cutaway axonometric schematic diagram of the present invention.

[0025] Figure 4 It is a full-section left-view axonometric schematic diagram of the present invention.

[0026] Figure 5 It is a rear cutaway axonometric schematic diagram of the present invention.

[0027] Figure 6 It is a rear axonometric schematic diagram of the present invention.

[0028] Figure 7 It is a top view cutaway axonometric schematic diagram of the present invention.

[0029] Figure 8 It is a left axonometric schematic diagram of the L-shaped plate, push plate and cylindrical rod in the present invention.

[0030] Fig. 9 It is a bottom-up axonometric schematic diagram of the L-shaped plate, push plate and cylindrical rod in the present invention.

[0031] Fig.10 For the present invention Figure 7 Enlarged schematic diagram of part A.

[0032] In the figure: 1. sound insulation box; 2. first U-shaped plate; 3. second U-shaped plate; 4. sound outlet; 5. placement port; 6. door and window samples; 7. cover plate; 8. cylindrical rod; 9. L-shaped plate; 10. baffle; 11. sealing gasket; 12. sound player; 13. push plate; 14. spring; 15. connecting rod; 16. first waist-shaped ring; 17. second waist-shaped ring; 18. X-shaped unit; 19. plug column; 20. turntable; 21. pull rod; 22. rotating shaft; 23. first hand wheel; 24. guide cross bar; 25. guide block; 26. slide groove; 27. screw; 28. second hand wheel; 29. ​​round hole; 30. sound insulation cotton; 31. universal wheel. DETAILED DESCRIPTION

[0033] The following will refer to the attached Figures 1 to 10 The embodiments of the present invention are described in detail. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0034] A sound insulation performance testing device for sound insulation doors and windows, such as the attached Figures 1 to 10 As shown, it includes a soundproof box 1, a first U-shaped plate 2 with a left-right direction and an opening facing upward is provided at the bottom of the soundproof box 1, and second U-shaped plates 3 with a vertical direction are slidably connected to the left and right parts of the soundproof box 1, and the two second U-shaped plates 3 can move in opposite directions or opposite directions, and the left and right openings of the two second U-shaped plates 3 are opposite to each other, and the lower end surface of the second U-shaped plate 3 is fitted with the inner surface of the first U-shaped plate 2, and a sound outlet 4 located between the two second U-shaped plates 3 is provided on the front side wall of the soundproof box 1, and a placement opening 5 located directly above the two second U-shaped plates 3 and in the left and right directions is provided on the upper side wall of the soundproof box 1, and a door and window sample 6 located between the two second U-shaped plates 3 is detachably connected to the first U-shaped plate 2, and the upper end of the door and window sample 6 extends out of the placement opening 5, and a left-right cover plate 7 is provided on the upper end of the second U-shaped plate 3, and the cover plate 7 is located so as to block the edge portions on both sides of the placement opening 5;

[0035] The upper inner part of the soundproof box 1 is provided with two cylindrical rods 8 in the front-to-back direction and opposite to each other left and right. The two cylindrical rods 8 are located behind the door and window sample 6. An L-shaped plate 9 is slidably connected to the two cylindrical rods 8. The horizontal part of the L-shaped plate 9 can contact the rear end surface of the door and window sample 6. The left and right ends of the horizontal part of the L-shaped plate 9 are laterally slidably connected with baffles 10 in the left and right directions. The two baffles 10 are provided with sealing gaskets 11 at the opposite ends. The vertical part of the L-shaped plate 9 is provided with a sound player 12. The two cylindrical rods 8 are provided with a push plate 13 located behind the L-shaped plate 9 and can move forward and backward. The cylindrical rods 8 are provided with a spring 14 located between the push plate 13 and the vertical part of the L-shaped plate 9. The left and right ends of the push plate 13 are hinged with connecting rods 15, and the free ends of the connecting rods 15 are hingedly connected to the baffle 10 on the corresponding side.

[0036] As attached Figure 2 , Figure 4 and Figure 5 As shown, the left and right ends of the sound insulation box 1 are both provided with a first waist-shaped ring 16 in the up-down direction, and the two second U-shaped plates 3 are both provided with a second waist-shaped ring 17 in the up-down direction. The left and right parts of the sound insulation box 1 are both laterally slidably connected with an X-shaped unit 18 located between the first waist-shaped ring 16 and the second waist-shaped ring 17. Each free end of the X-shaped unit 18 is provided with a front-to-back axial plug post 19, wherein the plug post 19 on one side is located in the first waist-shaped ring 16, and the plug post 19 on the other side is located in the second waist-shaped ring 17. A turntable 20 located between the two X-shaped units 18 is rotatably connected in the sound insulation box 1, and the left and right parts of the turntable 20 are both hinged with a pull rod 21. The free end of the rod 21 is hingedly connected to the middle part of the X-shaped unit 18 on the corresponding side. When the turntable 20 rotates clockwise, the turntable 20 drives the two pull rods 21 to move in opposite directions, and the pull rods 21 drive the middle part of the X-shaped unit 18 on the corresponding side to move. The two X-shaped units 18 gradually shrink, and the X-shaped unit 18 drives the second waist-shaped ring 17 on the corresponding side to move through the plug column 19. The two second waist-shaped rings 17 drive the two second U-shaped plates 3 to move in opposite directions. When the turntable 20 rotates counterclockwise, the turntable 20 drives the two pull rods 21 to move in opposite directions, and the pull rods 21 drive the two second U-shaped plates 3 to move in opposite directions through the X-shaped unit 18.

[0037] As attached Figure 4 and Figure 5 As shown, a rotating shaft 22 coaxial with the turntable 20 is provided in the soundproof box 1, and the rotating shaft 22 is fixedly connected to the turntable 20. The rear end of the rotating shaft 22 extends out of the soundproof box 1 and is provided with a first hand wheel 23. When the staff turns the first hand wheel 23, the first hand wheel 23 can drive the rotating shaft 22 to rotate, and the rotating shaft 22 drives the turntable 20 to rotate, thereby facilitating the staff to control the rotation of the turntable 20 in the soundproof box 1.

[0038] As attached Figure 3 and Figure 5As shown, the upper and lower parts of the sound insulation box 1 are both provided with left and right guide cross bars 24, and the upper and lower parts of the second U-shaped plate 3 are both provided with guide blocks 25, and the guide blocks 25 are slidably connected with the guide cross bars 24 on the corresponding side, so as to realize the lateral sliding connection between the second U-shaped plate 3 and the sound insulation box 1 without contact, and the two guide cross bars 24 make the lateral sliding of the second U-shaped plate 3 more stable.

[0039] As attached Figure 7 , Figure 8 and Fig.10 As shown, the horizontal portion of the L-shaped plate 9 is provided with two left and right opposite sliding grooves 26, the upper portion of the baffle 10 is located in the sliding grooves 26 and is slidably connected to the sliding grooves 26, thereby realizing a transverse sliding connection between the baffle 10 and the horizontal portion of the L-shaped plate 9.

[0040] As attached Figure 4 and Figure 7 As shown, a lead screw 27 located between the two cylindrical rods 8 and axially arranged in the front-to-back direction is rotatably connected inside the sound insulation box 1. The lead screw 27 is threadedly connected to the push plate 13. The rear end of the lead screw 27 extends out of the sound insulation box 1 and is provided with a second hand wheel 28. When the staff rotates the second hand wheel 28, the second hand wheel 28 drives the lead screw 27 to rotate, and the lead screw 27 drives the push plate 13 to move. That is, the staff can rotate the second hand wheel 28 to drive the push plate 13 to move forward and backward.

[0041] As attached Figure 4 and Fig. 9 As shown, the vertical portion of the L-shaped plate 9 is provided with a circular hole 29 which is coaxial with the lead screw 27 and passes through the front and back. The lead screw 27 passes through the center of the circular hole 29. The circular hole 29 can prevent the L-shaped plate 9 from colliding with the lead screw 27 when moving.

[0042] As attached Figure 3 , Figure 4 , Figure 7 and Fig.10 As shown, sound insulation cotton 30 is provided on the inner surfaces of the first U-shaped plate 2 and the second U-shaped plate 3. The sound insulation cotton 30 can fill the gap between the first U-shaped plate 2 and the second U-shaped plate 3 and the door and window sample 6, thereby enhancing the sealing effect of the sound insulation box 1 and making the detection result more accurate.

[0043] As attached Figure 3 , Figure 4 , Figure 7 and Fig.10 As shown, the opening ends of the first U-shaped plate 2 and the second U-shaped plate 3 are both in a gradually opening and tilting shape, which makes it easy to clamp the frame of the door and window sample 6 in the first U-shaped plate 2 and the second U-shaped plate 3.

[0044] As attached Figures 1 to 6As shown, the lower end of the soundproof box 1 is provided with a plurality of universal wheels 31 distributed in a rectangular array, so that the staff can push the door and window samples 6 to different positions for testing.

[0045] When the present invention is in use, in the initial state, the door and window sample 6 is located outside the soundproof box 1, the L-shaped plate 9 and the push plate 13 are located behind the two cylindrical rods 8, the spring 14 is at its original length, and the distance between the two X-shaped units 18 is at its maximum;

[0046] The soundproof box 1 in the present invention refers to a box with a soundproofing function. The staff needs to insert the door and window sample 6 into the soundproof box 1 from the placement opening 5 so that the lower end of the door and window sample 6 is stuck in the first U-shaped plate 2, and the soundproof cotton 30 on the inner surface of the first U-shaped plate 2 is in contact with the frame of the door and window sample 6, and the opening end of the first U-shaped plate 2 is in a gradually opening and tilting shape. The staff can easily align the frame of the door and window sample 6 with the first U-shaped plate 2, and the upper end of the door and window sample 6 is located above the placement opening 5, which is convenient for the staff to take out the door and window sample 6, and then push the soundproof box 1 to the wall of the room through the universal wheel 31, so that the sound outlet 4 on the soundproof box 1 faces the center of the room;

[0047] The staff first rotates the first hand wheel 23 counterclockwise, the first hand wheel 23 drives the rotating shaft 22 to rotate counterclockwise, the rotating shaft 22 drives the turntable 20 to rotate counterclockwise, the turntable 20 drives the two pull rods 21 to move in opposite directions, the two pull rods 21 drive the middle parts of the two X-shaped units 18 to move in opposite directions, because the plug post 19 on one side of the X-shaped unit 18 is located in the first waist-shaped ring 16, and the first waist-shaped ring 16 is fixed on the sound insulation box 1, the middle part of the X-shaped unit 18 will gradually expand when it moves toward the middle of the sound insulation box 1, and the X-shaped unit 18 drives the plug post 19 on the other side to move , since the plug post 19 on the other side of the X-shaped unit 18 is located in the second waist-shaped ring 17, the two X-shaped units 18 will drive the two second waist-shaped rings 17 to move in opposite directions, and the two second waist-shaped rings 17 drive the two second U-shaped plates 3 to move in opposite directions, and the second U-shaped plate 3 drives the guide block 25 to slide along the guide cross bar 24. The upper and lower guide cross bars 24 can improve the stability of the second U-shaped plate 3 when moving, and the moving distance of the second U-shaped plate 3 is twice that of the middle part of the X-shaped unit 18, which can significantly improve the efficiency of the staff in adjusting the second U-shaped plate 3;

[0048] When the second U-shaped plate 3 moves toward the middle of the soundproof box 1, the cover plate 7 moves with the second U-shaped plate 3 and moves along the placement opening 5, thereby blocking the opening at the edge of the placement opening 5, enhancing the sealing effect of the soundproof box 1, and the two second U-shaped plates 3 gradually approach the left and right frames of the door and window sample 6. When the frame on one side first enters the second U-shaped plate 3 on the corresponding side, the second U-shaped plate 3 on this side pushes the door and window sample 6 to the middle of the soundproof box 1 and is located directly behind the sound outlet 4. When the left and right frames of the door and window sample 6 are both stuck in the second U-shaped plate 3 on the corresponding side, the sound insulation cotton 30 on the inner surface of the second U-shaped plate 3 contacts the frame of the door and window sample 6, and can fill the gap between the frame of the door and window sample 6 and the second U-shaped plate 3. At this time, the door and window sample 6 blocks the sound outlet 4;

[0049] The staff stops turning the first hand wheel 23, and then turns the second hand wheel 28 counterclockwise. The second hand wheel 28 drives the lead screw 27 to rotate counterclockwise. The lead screw 27 drives the push plate 13 to slide forward along the two cylindrical rods 8. A spring 14 is provided between the push plate 13 and the vertical portion of the L-shaped plate 9. The push plate 13 will push the L-shaped plate 9 forward through the spring 14. The horizontal portion of the L-shaped plate 9 gradually approaches the door and window sample 6. The circular hole 29 opened on the vertical portion of the L-shaped plate 9 moves along the lead screw 27, which can avoid the L-shaped plate 9 from colliding with the lead screw 27 when moving.

[0050] When the front end surface of the horizontal part of the L-shaped plate 9 contacts the plane in the middle of the door and window sample 6, the L-shaped plate 9 cannot move forward any further, and the staff member continues to rotate the second hand wheel 28 counterclockwise, and the push plate 13 continues to move forward, and the push plate 13 begins to squeeze the spring 14 between the vertical part of the L-shaped plate 9, and at the same time, the push plate 13 drives the two connecting rods 15 to swing in opposite directions, and the two connecting rods 15 gradually open, and the front ends of the two connecting rods 15 drive the two baffles 10 to move in opposite directions, and the baffles 10 move along the slide groove 26, and at the same time, the baffles 10 drive the sealing gasket 11 to move, and when the sealing gasket 11 contacts the frame part of the door and window sample 6, the interior of the soundproof box 1 is completely sealed, and the staff member stops rotating the second hand wheel 28, and because the threaded connection between the lead screw 27 and the push plate 13 is self-locking, the sealing gasket 11 and the frame of the door and window sample 6 will be in a fitted state;

[0051] The staff can start the sound player 12, and the sound emitted by the sound player 12 is transmitted to the outside of the soundproof box 1 through the door and window sample 6. The staff can hold a decibel meter to detect the sound level in each area of ​​the room, so as to detect the sound insulation performance of the door and window sample 6. During the detection, the staff can control the distance between the two second U-shaped plates 3 by turning the first hand wheel 23, and control the distance between the two baffles 10 by turning the second hand wheel 28, so as to be applicable to door and window samples 6 of different sizes;

[0052] After the test is completed, the staff can rotate the second hand wheel 28 clockwise, and the second hand wheel 28 drives the lead screw 27 to rotate counterclockwise, and the lead screw 27 drives the push plate 13 and the L-shaped plate 9 to slide backward along the cylindrical rod 8, and the spring 14 between the vertical part of the L-shaped plate 9 and the push plate 13 is restored to the initial length, and the push plate 13 drives the two baffles 10 to move in opposite directions through the connecting rod 15, and the sealing gasket 11 on the baffle 10 is separated from the frame of the door and window sample 6, and then the horizontal part of the L-shaped plate 9 is out of contact with the center of the door and window sample 6;

[0053] When the L-shaped plate 9 returns to the initial position, stop rotating the second hand wheel 28, and then rotate the first hand wheel 23 clockwise. The first hand wheel 23 drives the rotating shaft 22 and the turntable 20 to rotate clockwise. The turntable 20 drives the two pull rods 21 to move in opposite directions. The two pull rods 21 drive the middle parts of the two X-shaped units 18 to move in opposite directions. The two X-shaped units 18 drive the two second waist-shaped rings 17 and the two second U-shaped plates 3 to move in opposite directions. The second U-shaped plates 3 are separated from the left and right frames of the door and window sample 6. At this time, the staff can take the door and window sample 6 out of the placement port 5. The door and window sample 6 after testing will not affect the continued sales.

[0054] The sound player 12 in the present invention is a prior art that can be understood by those skilled in the art, and its circuit adopts a currently commonly used connection method, and its internal structure will not be described in detail here.

[0055] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0056] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A sound insulation performance testing device for sound insulation doors and windows for sale, comprising a sound insulation box (1), characterized in that: The bottom of the soundproof box (1) is provided with a first U-shaped plate (2) in the left and right directions and with an opening facing upwards. The left and right parts of the soundproof box (1) are both laterally slidably connected with second U-shaped plates (3) in the up and down directions. The two second U-shaped plates (3) can move in opposite directions or in opposite directions. The left and right openings of the two second U-shaped plates (3) are opposite to each other. The lower end surface of the second U-shaped plate (3) is in contact with the inner surface of the first U-shaped plate (2). The front side wall of the soundproof box (1) is provided with a second U-shaped plate (3) located between the two second U-shaped plates (3). ), a placement opening (5) is provided on the upper side wall of the soundproof box (1) and is located directly above the two second U-shaped plates (3) and in the left and right directions; a door and window sample (6) is detachably connected to the first U-shaped plate (2) and is located between the two second U-shaped plates (3); the upper end of the door and window sample (6) extends out of the placement opening (5); a cover plate (7) is provided on the upper end of the second U-shaped plate (3) and is in the left and right directions; the cover plate (7) is located so as to cover the edge portions on the left and right sides of the placement opening (5); The soundproof box (1) is provided with two cylindrical rods (8) in the front-to-back direction and opposite to each other left and right at the upper inner part. The two cylindrical rods (8) are located behind the door and window sample (6). An L-shaped plate (9) is slidably connected to the two cylindrical rods (8). The horizontal part of the L-shaped plate (9) can contact the rear end surface of the door and window sample (6). The left and right ends of the horizontal part of the L-shaped plate (9) are both laterally slidably connected with baffles (10) in the left and right directions. The two baffles (10) are both provided with sealing gaskets (11) at the opposite ends. The vertical part of the L-shaped plate (9) is provided with a sound player (12). The two cylindrical rods (8) are provided with a push plate (13) located behind the L-shaped plate (9) and capable of moving forward and backward. The cylindrical rods (8) are provided with a spring (14) located between the push plate (13) and the vertical part of the L-shaped plate (9). The left and right ends of the push plate (13) are both hinged with connecting rods (15). The free end of the connecting rod (15) is hingedly connected to the baffle (10) on the corresponding side.

2. The sound insulation performance testing device for sound insulation doors and windows according to claim 1 is characterized in that: The left and right ends of the sound insulation box (1) are both provided with first waist-shaped rings (16) in the up-down direction, and the two second U-shaped plates (3) are both provided with second waist-shaped rings (17) in the up-down direction. The left and right parts of the sound insulation box (1) are both laterally slidably connected with an X-shaped unit (18) located between the first waist-shaped ring (16) and the second waist-shaped ring (17). Each free end of the X-shaped unit (18) is provided with a front-to-back axial plug post (19), wherein the plug post (19) on one side is located in the first waist-shaped ring (16), and the plug post (19) on the other side is located in the second waist-shaped ring (17). A turntable (20) located between the two X-shaped units (18) is rotatably connected in the sound insulation box (1), and the left and right parts of the turntable (20) are both hinged with a pull rod (21), and the free end of the pull rod (21) is hingedly connected to the middle part of the X-shaped unit (18) on the corresponding side.

3. The sound insulation performance testing device for sound insulation doors and windows according to claim 1 is characterized in that: A rotating shaft (22) coaxial with the rotating disk (20) is arranged in the soundproof box (1), the rotating shaft (22) is fixedly connected to the rotating disk (20), and the rear end of the rotating shaft (22) extends out of the soundproof box (1) and is provided with a first hand wheel (23).

4. The sound insulation performance testing device for sound insulation doors and windows according to claim 1 is characterized in that: The upper and lower parts of the sound insulation box (1) are both provided with guide cross bars (24) in the left and right directions, and the upper and lower parts of the second U-shaped plate (3) are both provided with guide blocks (25), and the guide blocks (25) are slidably connected to the guide cross bars (24) on the corresponding sides, thereby realizing a lateral sliding connection between the second U-shaped plate (3) and the sound insulation box (1) without contact.

5. The sound insulation performance testing device for sound insulation doors and windows sold according to claim 1 is characterized in that: The horizontal portion of the L-shaped plate (9) is provided with two sliding grooves (26) in left and right directions and opposite to each other. The upper portion of the baffle plate (10) is located in the sliding grooves (26) and is slidably connected to the sliding grooves (26), thereby realizing a transverse sliding connection between the baffle plate (10) and the horizontal portion of the L-shaped plate (9).

6. The sound insulation performance testing device for sound insulation doors and windows according to claim 1 is characterized in that: A lead screw (27) is rotatably connected in the soundproof box (1) and is located between the two cylindrical rods (8) and is axially connected to the front and rear. The lead screw (27) is threadedly connected to the push plate (13). The rear end of the lead screw (27) extends out of the soundproof box (1) and is provided with a second hand wheel (28).

7. The sound insulation performance testing device for sound insulation doors and windows sold according to claim 1 is characterized in that: The vertical portion of the L-shaped plate (9) is provided with a circular hole (29) which is coaxial with the lead screw (27) and penetrates from front to back. The lead screw (27) passes through the center of the circular hole (29). The circular hole (29) can prevent the L-shaped plate (9) from colliding with the lead screw (27) when moving.

8. The sound insulation performance testing device for sound insulation doors and windows according to claim 1 is characterized in that: Sound insulation cotton (30) is provided on the inner surface of the first U-shaped plate (2) and the second U-shaped plate (3), and the sound insulation cotton (30) can fill the gap between the first U-shaped plate (2), the second U-shaped plate (3) and the door and window sample (6), thereby enhancing the sealing effect of the sound insulation box (1).

9. The sound insulation performance testing device for sound insulation doors and windows sold according to claim 1 is characterized in that: The opening ends of the first U-shaped plate (2) and the second U-shaped plate (3) are both in a gradually opening and tilting shape, so as to facilitate the frame of the door and window sample (6) to be clamped in the first U-shaped plate (2) and the second U-shaped plate (3).

10. The sound insulation performance testing device for sound insulation doors and windows sold according to claim 1, characterized in that: The lower end of the sound insulation box (1) is provided with a plurality of universal wheels (31) distributed in a rectangular array.

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