Noise detection soundproof box with damping structure

Abstract

The utility model discloses a noise detection soundproof box with a damping structure, which relates to the field of soundproof boxes and comprises a metal plate upper cover and a metal plate lower box hinged to one end of the metal plate upper cover, a wire passing hole is formed in the lower end of one end of the metal plate lower box, and a bottom plate is arranged below the metal plate lower box. A damping mechanism used for reducing noise and preventing device position deviation is arranged below the metal plate lower box at the top end of the metal plate upper cover. According to the noise detection soundproof box with the damping structure, when a to-be-detected workpiece vibrates in the working process, the damping effect can be achieved through the dampers in order to avoid the problem that the position of the device deviates due to vibration, and in order to enhance the damping effect, when the metal plate lower box is subjected to vibration force, the metal plate lower box is not prone to vibration. And the elastic air bag below the mounting plate is stressed and conveys internal air into the piston rod through the hose, and the buffer spring is wound outside the piston rod, so that the buffer and shock absorption effects can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of sound insulation boxes, in particular to a noise detection sound insulation box provided with a shock absorbing structure. Background Art

[0002] After the motor is produced, it needs to be tested for noise. A motor with good performance makes less noise when in use. In order to ensure the quality of the motor before leaving the factory, the motor is tested in a running state using a soundproof box. This can not only ensure stable quality test results for the motor, but also prevent staff from being disturbed by noise when testing the motor.

[0003] In the prior art, the Chinese patent with authorization announcement number CN217842503U discloses a soundproof box with a shock-absorbing structure, and the key points of its technical solution include a soundproof outer box, a soundproof inner box, a plurality of first shock-absorbing devices, and a plurality of second shock-absorbing devices; the soundproof outer box includes an outer box body and an outer box door, the outer box door is hinged with the outer box body, and the two can form a closed cavity, and the plurality of the first shock-absorbing devices are supported at the bottom of the outer box body; the soundproof inner box is located in the soundproof outer box, and there is a gap between it and the soundproof outer box; the soundproof inner box includes an inner box body and an inner box door, the inner box door is hinged with the inner box body, and the two can form a closed cavity; all the second shock-absorbing devices are fixed to the bottom surface of the inner box body and supported on the outer box body. The utility model sets up a non-contacting inner and outer double box structure, and sets shock-absorbing devices at the bottom of the inner box body and the outer box body, so as to isolate vibrations from the outside and the ground, effectively eliminate low-frequency noise, and meet the noise requirements of acoustic performance testing.

[0004] The above mechanism reduces external and ground vibrations and eliminates low-frequency noise by means of the cooperation of the two boxes, a soundproof outer box and a soundproof inner box. However, in actual use, some noise will still be transmitted if the noise is eliminated only by reducing vibration. When workers are in a noisy environment for a long time, it will cause ear discomfort. Therefore, it is necessary to perform more thorough soundproofing on the test products. Utility Model Content

[0005] The purpose of the utility model is to provide a noise detection soundproof box with a shock-absorbing structure to solve the problems of ear discomfort and incomplete sound insulation when workers are in a noisy environment for a long time as mentioned in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a noise detection soundproof box with a shock-absorbing structure, comprising a sheet metal upper cover and a sheet metal lower box hinged at one end of the sheet metal upper cover, the inner side of the sheet metal lower box and the inner side of the sheet metal upper cover are both provided with step fitting plates, and the inner side of the sheet metal lower box is provided with a sound insulation component, both ends of the outer sides of the sheet metal lower box are equipped with handles through fasteners, a wire hole is provided at the lower end of one end of the sheet metal lower box, and a workpiece to be detected is placed inside the sheet metal lower box;

[0007] A bottom plate is provided below the sheet metal lower box, and a shock absorbing mechanism for reducing the position deviation of the noise prevention device is provided below the sheet metal lower box at the top of the sheet metal upper cover, the shock absorbing mechanism includes a shock absorber, and the shock absorber is fixedly connected to the four corners of the bottom end of the sheet metal lower box, and the bottom end of the shock absorber is connected to the top end of the sheet metal upper cover;

[0008] The upper ends of both sides of the outside of the sheet metal lower box are rotatably connected to the first pneumatic telescopic rod through a mounting seat, and the output ends of the first pneumatic telescopic rod are arranged on both sides of the outside of the sheet metal upper cover. One end of both sides of the sheet metal lower box is provided with an anti-closing mechanism, and the anti-closing mechanism is used to limit the opening angle of the sheet metal upper cover to prevent the sheet metal upper cover from falling due to weight and closing with the sheet metal lower box.

[0009] Furthermore, the bottom end of the sheet metal lower box and the top end of the sheet metal upper cover are both fixedly connected to mounting plates, and an elastic airbag is fixedly connected to one end between the mounting plates.

[0010] Furthermore, a buffer spring is wound around the outer side of the piston rod, and the top end and the bottom end of the buffer spring are both connected to the mounting plate.

[0011] Furthermore, piston rods are arranged at the four corners of the mounting plate, and the elastic airbag is connected to the piston rods through a hose.

[0012] Furthermore, the anti-closing mechanism includes a mounting frame, and the mounting frame is fixedly connected to both sides of one end of the sheet metal lower box, a second pneumatic telescopic rod is fixedly connected to one side inside the mounting frame, and an output end of the second pneumatic telescopic rod is fixedly connected to a movable frame, limit rods are provided above and below the second pneumatic telescopic rod, and the limit rods are connected to the mounting frame, the movable frame is sleeved on the outside of the limit rod, and the top of the movable frame is fixedly connected to a blocking member through a connecting plate.

[0013] Furthermore, the cross section of the blocking member is trapezoidal, and the top end of the blocking member fits with the bottom end of the sheet metal upper cover, and the bottom end of the blocking member fits with the top end of the sheet metal lower box.

[0014] Furthermore, the inner sides of the sheet metal upper cover and the sheet metal lower box are provided with a damping layer and a sound insulation board, and the inner side of the step bonding plate is provided with sound-absorbing cotton.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. When the workpiece to be inspected is working, it will cause vibration. In order to avoid the device itself from being displaced due to vibration, the shock absorber can play a role in shock absorption. In order to enhance the shock absorption effect, when the sheet metal lower box is subjected to the force of vibration, the mounting plate at the bottom of the sheet metal lower box will be squeezed, so that the elastic airbag under the mounting plate is stressed and the internal gas is transported to the inside of the piston rod through the hose. In addition, the outside of the piston rod is wrapped with a buffer spring, which can play a role in buffering and shock absorption, avoiding problems such as poor shock absorption effect caused by relying solely on the shock absorber, so that the overall stability of the device is higher when in use;

[0017] Furthermore, the workpiece to be inspected is placed inside the sheet metal lower box, and the output end is retracted by the first pneumatic telescopic rod, so that the sheet metal upper cover and the sheet metal lower box are closed. A buffer pad is provided on the step laminating plate, so that the sheet metal upper cover and the sheet metal lower box are highly stable when closed, and the sheet metal upper cover and the sheet metal lower box are prevented from being closed due to impact caused by weight, which affects the service life.

[0018] Furthermore, the sheet metal upper cover and the sheet metal lower box can effectively play a role in sound insulation and reduce noise transmission. The sheet metal upper cover and the sheet metal lower box are both provided with a damping layer, a sound insulation board and a sound-absorbing cotton inside to reduce noise transmission and reduce the impact of noise on the staff, thereby ensuring the comfort of the working environment, while also avoiding vibration caused by noise and preventing the displacement of the device position.

[0019] 2. By engaging the blocking member in the gap between the sheet metal upper cover and the sheet metal lower box, the sheet metal upper cover can be made more stable in the open state, avoiding the sheet metal upper cover from closing suddenly when the staff places the workpiece to be tested inside the sheet metal lower box. The cross section of the blocking member is trapezoidal, which can better adapt to the gap between the sheet metal upper cover and the sheet metal lower box;

[0020] Furthermore, the output end of the first pneumatic telescopic rod can also control the angle between the sheet metal upper cover and the sheet metal lower box, so that the opening angle of the sheet metal upper cover is sufficient to engage and limit the blocking member, and the lifting angle of the sheet metal upper cover is controlled by the output end of the first pneumatic telescopic rod, so that the movement and storage of the blocking member is also more convenient, avoiding the blocking member from being stuck in the gap between the sheet metal upper cover and the sheet metal lower box. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0022] Figure 2 This is a rear-view stereoscopic structural schematic diagram of the utility model;

[0023] Figure 3 This is a schematic diagram of the anti-closing mechanism structure of the utility model;

[0024] Figure 4 This is a schematic diagram of the three-dimensional structure of the utility model when viewed from above;

[0025] Figure 5 This is a schematic diagram of the structure of the sound-absorbing cotton of the utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the shock absorbing mechanism of the utility model;

[0027] Figure 7 It is a schematic diagram of the three-dimensional structure of the first pneumatic telescopic rod of the utility model.

[0028] In the figure: 1. sheet metal upper cover; 2. sheet metal lower box; 3. bottom plate; 4. step bonding plate; 5. sound-absorbing cotton; 6. workpiece to be tested; 7. handle; 8. shock absorber; 9. first pneumatic telescopic rod; 10. mounting seat; 11. blocking member; 12. connecting plate; 13. second pneumatic telescopic rod; 14. limiting rod; 15. movable frame; 16. mounting frame; 17. wire hole; 18. mounting plate; 19. elastic airbag; 20. buffer spring; 21. piston rod. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Embodiment 1:

[0031] like Figure 1 , Figure 2 and Figure 6The technical solution shown is to solve the problem that the position of the device itself is offset due to the vibration of the workpiece 6 to be detected inside the soundproof box during detection: the noise detection soundproof box with a shock-absorbing structure discloses a shock-absorbing mechanism, including a sheet metal upper cover 1 and a sheet metal lower box 2 hinged at one end of the sheet metal upper cover 1, the inner side of the sheet metal lower box 2 and the inner side of the sheet metal upper cover 1 are both provided with a step fitting plate 4, and the inner side of the sheet metal lower box 2 is provided with a sound insulation component, both ends of the outer side of the sheet metal lower box 2 are installed with handles 7 through fasteners, a wire hole 17 is provided at the lower end of one end of the sheet metal lower box 2, and the workpiece 6 to be detected is placed inside the sheet metal lower box 2, a bottom plate 3 is provided below the sheet metal lower box 2, and the sheet metal upper A shock absorbing mechanism for slowing down the position deviation of the noise prevention device is arranged below the sheet metal lower box 2 at the top of the cover 1, and the shock absorbing mechanism includes a shock absorber 8, and the shock absorber 8 is fixedly connected to the four corners of the bottom end of the sheet metal lower box 2, and the bottom end of the shock absorber 8 is connected to the top of the sheet metal upper cover 1, and the bottom end of the sheet metal lower box 2 and the top end of the sheet metal upper cover 1 are fixedly connected with a mounting plate 18, and one end between the mounting plates 18 is fixedly connected with an elastic air bag 19, a buffer spring 20 is wound around the outer side of the piston rod 21, and the top and bottom ends of the buffer spring 20 are connected to the mounting plate 18, piston rods 21 are arranged at the four corners of the mounting plate 18, and the elastic air bag 19 is connected to the piston rod 21 through a hose.

[0032] In this example, the workpiece 6 to be inspected is placed inside the sheet metal lower box 2, and the output end is retracted by the first pneumatic telescopic rod 9 to close the sheet metal upper cover 1 and the sheet metal lower box 2. A buffer pad is provided on the step bonding plate 4, which can make the sheet metal upper cover 1 and the sheet metal lower box 2 highly stable when closed, avoiding the problem of the sheet metal upper cover 1 and the sheet metal lower box 2 being closed due to impact caused by weight, which affects the service life. After the workpiece 6 to be inspected is opened, the workpiece 6 to be inspected is tested inside the sheet metal lower box 2. When the workpiece 6 to be inspected is working, it will cause vibration. In order to avoid In order to prevent the device itself from being displaced due to vibration, the shock absorber 8 can play a role in shock absorption. In order to enhance the shock absorption effect, when the sheet metal lower box 2 is subjected to the force of vibration, the mounting plate 18 at the bottom of the sheet metal lower box 2 will be squeezed, so that the elastic airbag 19 under the mounting plate 18 is stressed and the internal gas is transported to the inside of the piston rod 21 through a hose. In addition, a buffer spring 20 is wrapped around the outside of the piston rod 21, which can play a role in buffering and shock absorption, avoiding problems such as poor shock absorption effect caused by relying solely on the shock absorber 8, so that the overall stability of the device is higher when in use.

[0033] Embodiment 2:

[0034] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 7The technical solution shown is to solve the problem that when the sheet metal upper cover 1 is opened, the sheet metal upper cover 1 is not stable enough and has a low safety factor because it is supported only by the first pneumatic telescopic rod 9: the noise detection soundproof box with a shock-absorbing structure discloses an anti-closing mechanism, and the upper ends of both sides of the outer side of the sheet metal lower box 2 are rotatably connected to the first pneumatic telescopic rod 9 through the mounting seat 10, and the output ends of the first pneumatic telescopic rod 9 are arranged on both sides of the outer side of the sheet metal upper cover 1, and one end of both sides of the sheet metal lower box 2 is provided with an anti-closing mechanism, and the anti-closing mechanism is used to limit the opening angle of the sheet metal upper cover 1 to prevent the sheet metal upper cover 1 from falling and closing with the sheet metal lower box 2 due to weight. The anti-closing mechanism includes A mounting frame 16 is provided, and the mounting frame 16 is fixedly connected to both sides of one end of the sheet metal lower box 2. A second pneumatic telescopic rod 13 is fixedly connected to one side inside the mounting frame 16, and a movable frame 15 is fixedly connected to the output end of the second pneumatic telescopic rod 13. Limit rods 14 are arranged above and below the second pneumatic telescopic rod 13, and the limit rods 14 are connected to the mounting frame 16. The movable frame 15 is sleeved on the outside of the limit rods 14. The top of the movable frame 15 is fixedly connected to a blocking member 11 through a connecting plate 12. The cross-section of the blocking member 11 is trapezoidal, and the top of the blocking member 11 is in contact with the bottom end of the sheet metal upper cover 1, and the bottom end of the blocking member 11 is in contact with the top of the sheet metal lower box 2.

[0035] In this example, by engaging the blocking member 11 in the gap opened between the sheet metal upper cover 1 and the sheet metal lower box 2, the sheet metal upper cover 1 can be made more stable in the open state, thereby preventing the sheet metal upper cover 1 from suddenly closing when the staff places the workpiece 6 to be inspected into the interior of the sheet metal lower box 2. The output end of the first pneumatic telescopic rod 9 can also control the angle between the sheet metal upper cover 1 and the sheet metal lower box 2, so that the opening angle of the sheet metal upper cover 1 is sufficient to engage and limit the blocking member 11. The output end of the second pneumatic telescopic rod 13 is retracted to move the movable frame 15 to one side, so that the movable frame 15 can drive the connecting plate 12 and the blocking member 11 to move inward until the blocking member 11 is engaged with the gap between the sheet metal upper cover 1 and the sheet metal lower box 2.

[0036] Embodiment three:

[0037] like Figure 1 , Figure 2 , Figure 4 and Figure 5 The technical solution shown is to solve the problem that noise is emitted from the soundproof box when it is in use, affecting the working state of the staff: the noise detection soundproof box with a shock-absorbing structure discloses a soundproof mechanism, the inner sides of the sheet metal upper cover 1 and the sheet metal lower box 2 are provided with a damping layer and a soundproof board, and the inner side of the step bonding plate 4 is provided with sound-absorbing cotton 5.

[0038] In this example, the sheet metal upper cover 1 and the sheet metal lower box 2 can effectively play a role in sound insulation and reduce noise transmission. The interior of the sheet metal upper cover 1 and the sheet metal lower box 2 are both provided with a damping layer, a sound insulation board and a sound-absorbing cotton 5 to reduce noise transmission and reduce the impact of noise on the staff, thereby ensuring the comfort of the working environment, while also avoiding vibration caused by noise and preventing displacement of the device position.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A noise detection soundproof box with a shock-absorbing structure, comprising a sheet metal upper cover (1) and a sheet metal lower box (2) hinged at one end of the sheet metal upper cover (1), the inner side of the sheet metal lower box (2) and the inner side of the sheet metal upper cover (1) are both provided with a step bonding plate (4), and the inner side of the sheet metal lower box (2) is provided with a soundproofing component, both ends of the outer side of the sheet metal lower box (2) are equipped with handles (7) through fasteners, the lower end of one end of the sheet metal lower box (2) is provided with a wire hole (17), and a workpiece (6) to be detected is placed inside the sheet metal lower box (2); Features: A bottom plate (3) is arranged below the sheet metal lower box (2), and a shock absorbing mechanism for reducing the position deviation of the noise prevention device is arranged below the sheet metal lower box (2) at the top of the sheet metal upper cover (1), the shock absorbing mechanism comprising a shock absorber (8), and the shock absorber (8) is fixedly connected to the four corners of the bottom end of the sheet metal lower box (2), and the bottom end of the shock absorber (8) is connected to the top end of the sheet metal upper cover (1); The upper ends of both sides of the outside of the sheet metal lower box (2) are rotatably connected to the first pneumatic telescopic rod (9) through a mounting seat (10), and the output ends of the first pneumatic telescopic rod (9) are arranged on both sides of the outside of the sheet metal upper cover (1). One end of both sides of the sheet metal lower box (2) is provided with an anti-closing mechanism, and the anti-closing mechanism is used to limit the opening angle of the sheet metal upper cover (1) to prevent the sheet metal upper cover (1) from falling due to weight and closing with the sheet metal lower box (2).

2. A noise detection soundproof box with a shock absorbing structure according to claim 1, characterized in that: The bottom end of the sheet metal lower box (2) and the top end of the sheet metal upper cover (1) are both fixedly connected to a mounting plate (18), and one end between the mounting plates (18) is fixedly connected to an elastic air bag (19).

3. A noise detection soundproof box with a shock absorbing structure according to claim 2, characterized in that: A piston rod (21) is provided at each of the four corners of the mounting plate (18), a buffer spring (20) is wound around the outer side of the piston rod (21), and the top and bottom ends of the buffer spring (20) are connected to the mounting plate (18).

4. A noise detection soundproof box with a shock absorbing structure according to claim 3, characterized in that: The elastic airbag (19) is connected to the piston rod (21) via a hose.

5. The noise detection soundproof box with a shock absorbing structure according to claim 4, characterized in that: The anti-closing mechanism comprises a mounting frame (16), and the mounting frame (16) is fixedly connected to both sides of one end of the sheet metal lower box (2), one side inside the mounting frame (16) is fixedly connected to a second pneumatic telescopic rod (13), and the output end of the second pneumatic telescopic rod (13) is fixedly connected to a movable frame (15), and a limit rod (14) is arranged above and below the second pneumatic telescopic rod (13), and the limit rod (14) is connected to the mounting frame (16), the movable frame (15) is sleeved on the outside of the limit rod (14), and the top end of the movable frame (15) is fixedly connected to a blocking member (11) through a connecting plate (12).

6. The noise detection soundproof box with a shock absorbing structure according to claim 5, characterized in that: The cross section of the blocking member (11) is trapezoidal, and the top end of the blocking member (11) fits with the bottom end of the sheet metal upper cover (1), and the bottom end of the blocking member (11) fits with the top end of the sheet metal lower box (2).

7. The noise detection soundproof box with a shock absorbing structure according to claim 1, characterized in that: The inner sides of the sheet metal upper cover (1) and the sheet metal lower box (2) are both provided with a damping layer and a sound insulation board, and the inner side of the step laminating plate (4) is provided with sound absorbing cotton (5).

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