Sound insulation device for waist support air bag detection

Abstract

The utility model provides a sound insulation device for waist support air bag detection. The sound insulation device comprises a main body frame, a partition plate, a composite plate, a grating door frame assembly, a sound insulation door and a lifting assembly, the partition plate is embedded in the main body frame in a bolt fixing mode, the composite plate is installed on the partition plate to form a sound insulation cavity in the main body frame, and the sound insulation cavity is provided with an inspection port at the front end of the main body frame; the grating door frame assembly is arranged at the front end of the inspection port to form an accommodating cavity; the sound insulation door is movably mounted in the accommodating cavity below the inspection port; the lifting assembly comprises a set of lifting mechanisms arranged in the containing cavity in a bilateral symmetry mode relative to the inspection port. According to the air bag noise detection device, the influence of noise in the air bag detection process on production can be reduced, meanwhile, the interference of external noise on air bag noise detection can be reduced, and the noise detection accuracy is improved while the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sound insulation, in particular to a sound insulation device for detecting lumbar support air bags. Background Art

[0002] At present, automobiles have become an essential means of transportation in people's daily lives, and people's requirements for the functions of automobiles are also getting higher and higher. The automobile seat, as an important part of the whole vehicle, is no exception. People's requirements for seats are no longer limited to just a simple seat, but also require the seat to provide a more comfortable and safe experience. Therefore, a pneumatic lumbar support is produced as an auxiliary device for the seat. Among them, the influence of the pneumatic lumbar support on the comfort and safety of the seat mainly focuses on the performance of the air bag installed on the lumbar support.

[0003] However, the existing lumbar support air bag detection devices have the following defects:

[0004] (1) During the detection process of the lumbar support air bag, huge noise will be generated due to the inflation and deflation operations. The noise pollution makes it necessary for the staff to wear noise reduction and protection equipment to reduce the damage of the noise to the human auditory system. However, the noise reduction and protection equipment will also affect the communication between the staff, and the ineliminable noise will lead to a reduction in production efficiency.

[0005] (2) In order to make the seat reach a better comfort level, in addition to the conventional durability detection, the air bag also needs to be detected for other performances, among which the noise detection is particularly important. However, the conventional lumbar support air bag detection process is easily affected by external noise, resulting in inaccurate results of the air bag noise detection. Summary of the Utility Model

[0006] Aiming at the deficiencies of the prior art, the utility model provides a sound insulation device for detecting lumbar support air bags, which can reduce the impact of the noise during the air bag detection process on production, and at the same time can also eliminate the interference of external noise on the air bag noise detection, improving the production efficiency and the accuracy of the noise detection.

[0007] The technical solution of the utility model is realized as follows:

[0008] A sound insulation device for detecting lumbar support air bags includes a main body frame, a partition board, a composite board, a grating door frame assembly, a sound insulation door and a lifting assembly;

[0009] The partition board is embedded in the main body frame by means of bolt fixation, and the composite board is installed on the partition board so as to form a sound insulation cavity in the main body frame. The sound insulation cavity is provided with a sample delivery port at the front end of the main body frame;

[0010] The grating door frame assembly is arranged at the front end of the sample delivery port to form a receiving cavity for installing the sound insulation door and the lifting assembly;

[0011] The soundproof door is movably installed in the accommodation cavity below the inspection port. The soundproof door sequentially includes a soundproof door frame, a composite board, a sealing strip frame, and at least three sealing strips arranged around the periphery of the sealing strip frame;

[0012] The lifting assembly includes a set of lifting mechanisms symmetrically arranged on the left and right of the inspection port in the accommodation cavity. The lifting mechanism includes a column installed on the composite board, a slide rail arranged on the column, a mounting plate slidably carried on the slide rail and connected to the soundproof door frame, and a pull rod cylinder for providing lifting power to the mounting plate.

[0013] As a preferred embodiment, the grating door frame assembly includes a front door frame and side door frames arranged on both sides of the front door frame and connecting the outer composite board of the main frame. A signal indicator light is arranged at the top of the front door frame, and an inspection window for maintaining the lifting assembly is detachably arranged in the middle of the side door frame through bolt connection.

[0014] As a preferred embodiment, a grating port symmetrical to the inspection port is arranged on the front door frame. Grating mounting plates are symmetrically arranged on the left and right of the grating port relative to the grating port. A grating for detecting the inspected workpiece is arranged on the inner side of the grating mounting plate at the grating port, and a button box for manually controlling the soundproof device is arranged on the opposite side of the grating on the grating mounting plate.

[0015] As a preferred embodiment, the materials of the composite board arranged from the inside to the outside of the soundproof cavity sequentially include first glass wool, a damping plate, and second glass wool.

[0016] As a preferred embodiment, the volume density range of the first glass wool and the second glass wool is 20KG / m 3 -80KG / m 3 , and the volume density of the second glass wool is not less than that of the first glass wool.

[0017] As a preferred embodiment, the lifting mechanism further includes at least two pressing plates arranged on the mounting plate and a pressing plate cylinder for controlling the pressing plate to press the soundproof door.

[0018] As a preferred embodiment, the gap between the main frame and the partition board is subjected to caulking and sealing treatment after grinding operation.

[0019] As a preferred embodiment, a maintenance window is opened at the rear end of the main frame, a maintenance door with a movable switch is arranged on the maintenance window, and the maintenance door is connected to the composite board on the main frame by means of hinge.

[0020] As a preferred embodiment, a handwheel clamping plate for locking the maintenance door is arranged beside the maintenance window, and a rotating handwheel for controlling the rotation of the handwheel clamping plate is connected to the handwheel clamping plate.

[0021] As a preferred embodiment, the materials of the maintenance door arranged from inside to outside of the sound insulation cavity sequentially include first glass wool, a damping plate, and second glass wool.

[0022] Compared with the prior art, the present utility model has the following advantages:

[0023] The present utility model combines a main body frame, a partition board with sound insulation effect, and a composite board to form a sound insulation cavity with a sample submission port. Further, a grating door frame assembly arranged at the front end of the sample submission port constitutes a receiving cavity for installing a sound insulation door and a lifting assembly. The sound insulation door moves up and down in the receiving cavity through the lifting assembly, thereby changing the sound insulation cavity to an open state or a closed state. The sound insulation door is also composed of a sound insulation door frame, a composite board, and a sealing strip frame, which seals the sample submission port that is the only opening on the sound insulation cavity, so that the sound insulation device achieves the effect of isolating external noise interference. At the same time, the noise generated by the airbag detection is retained inside the sound insulation cavity, which not only reduces the impact of the detection noise on the production process but also improves the accuracy of the airbag noise detection result, further improving the working efficiency of the lumbar support airbag detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0025] Figure 1 It is a schematic structural diagram of a sound insulation device for lumbar support airbag detection of the present utility model;

[0026] Figure 2 It is a schematic structural diagram of the main body frame in a sound insulation device for lumbar support airbag detection of the present utility model;

[0027] Figure 3 It is a schematic structural diagram of the partition board in a sound insulation device for lumbar support airbag detection of the present utility model;

[0028] Figure 4 It is a schematic structural diagram of the composite board in a sound insulation device for lumbar support airbag detection of the present utility model;

[0029] Figure 5 It is a schematic structural diagram of the grating door frame assembly in a sound insulation device for lumbar support airbag detection of the present utility model;

[0030] Figure 6 This is a schematic structural diagram of a sound insulation door in a sound insulation device for detecting a lumbar support air bag according to the present utility model;

[0031] Figure 7 This is a schematic structural diagram of a lifting assembly in a sound insulation device for detecting a lumbar support air bag according to the present utility model;

[0032] Figure 8 is Figure 7 a side schematic view of;

[0033] Figure 9 is Figure 1 a structural schematic view from another perspective;

[0034] Figure 10 This is a schematic structural diagram of a maintenance door in a sound insulation device for detecting a lumbar support air bag according to the present utility model.

[0035] Reference signs in the drawings:

[0036] 1 - Main body frame, 11 - Submission port, 12 - Maintenance window, 13 - Handwheel clamping plate, 14 - Rotating handwheel;

[0037] 2 - Partition board;

[0038] 3 - Composite board, 31 - First glass wool, 32 - Damping plate, 33 - Second glass wool;

[0039] 4 - Grating door frame assembly, 41 - Front door frame, 411 - Signal indicator light, 412 - Grating opening, 42 - Side door frame, 421 - Inspection window, 43 - Grating mounting plate, 44 - Grating, 45 - Button box;

[0040] 5 - Sound insulation door, 51 - Sound insulation door frame, 52 - Sealing strip frame, 53 - Sealing strip;

[0041] 6 - Lifting assembly, 61 - Lifting mechanism, 62 - Column, 63 - Slide rail, 64 - Mounting plate, 65 - Tie rod cylinder, 66 - Pressing plate, 67 - Pressing plate cylinder;

[0042] 7 - Maintenance door. Detailed implementation manners

[0043] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0044] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third", "fourth", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0045] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0046] See Figures 1 to 10 , an embodiment of the present utility model discloses a sound insulation device for detecting lumbar support air bags, including a main body frame 1, a partition 2, a composite board 3, a grating door frame assembly 4, a sound insulation door 5, and a lifting assembly 6;

[0047] The partition 2 is embedded in the main body frame 1 by means of bolt fixation. The composite board 3 is installed on the partition 2 so as to form a sound insulation cavity inside the main body frame 1. The sound insulation cavity is provided with a sample submission port 11 at the front end of the main body frame 1;

[0048] Specifically, the sample submission port 11 is for the convenience of users to place the air bag to be tested into the sound insulation cavity, and at the same time cooperate with the detection device arranged in the sound insulation cavity to perform the performance detection of the air bag. Especially for the noise detection of the air bag, it can effectively reduce the interference of external noise on the detection result. It is easy for those skilled in the art to know after reading this application that in addition to performing the performance detection of the lumbar support air bag, this sound insulation device can also be used in other detection processes that require shielding noise interference. Placing the corresponding detection device in the sound insulation device can also achieve the effect of sound insulation and shielding noise interference, and has high practicability.

[0049] The grating door frame assembly 4 is arranged at the front end of the sample submission port 11 to form a receiving cavity for installing the sound insulation door 5 and the lifting assembly 6;

[0050] Specifically, the accommodation cavity can provide an installation and movement position for the sound insulation door 5 and the lifting assembly 6, facilitating the sound insulation door 5 to rise to the position of the inspection port 11 below the inspection port 11 to perform sound insulation sealing on the sound insulation cavity, and the sound insulation door 5 can be lowered below the inspection port 11 through the lifting assembly 6 to achieve the open state of the sound insulation cavity, so as to facilitate the inspection of the lumbar support airbag. At the same time, the accommodation cavity can protect the sound insulation door 5 and the lifting assembly 6 exposed outside the main frame 1.

[0051] The sound insulation door 5 is movably installed in the accommodation cavity below the inspection port 11. The sound insulation door 5 successively includes a sound insulation door frame 51, a composite board 3, a sealing strip frame 52, and at least three sealing strips 53 arranged around the periphery of the sealing strip frame 52.

[0052] Specifically, multiple sealing strips provided on the sound insulation door 5 can perform sound insulation treatment on the gap between the sound insulation door 5 and the inspection port 11, improving the sound insulation effect of the sound insulation cavity in the sound insulation device.

[0053] The lifting assembly 6 includes a set of lifting mechanisms 61 symmetrically arranged on the left and right of the inspection port 11 in the accommodation cavity. The lifting mechanism 61 includes a column 62 installed on the composite board 3, a slide rail 63 provided on the column 62, a mounting plate 64 slidably mounted on the slide rail 63 and connected to the sound insulation door frame 51, and a tie rod cylinder 65 for providing lifting power for the mounting plate 64.

[0054] Specifically, the sound insulation door 5 is evenly lifted or lowered by two symmetrically arranged lifting mechanisms 61, realizing the smooth movement of the sound insulation door 5.

[0055] As a preferred embodiment, the grating door frame assembly 4 includes a front door frame 41 and side door frames 42 provided on both sides of the front door frame 41 and connecting the outer composite board 3 of the main frame 1. A signal indicator light 411 is provided at the top of the front door frame 41, and an inspection window 421 for maintaining the lifting assembly 6 is detachably provided in the middle of the side door frame 42 through bolt connection.

[0056] Specifically, the signal indicator light 411 can prompt the current state of the sound insulation device, such as the open state, closed state, working state, and maintenance state, etc. The opening position of the inspection window 421 is directly opposite to the lifting assembly 6, which can facilitate users to perform regular maintenance on the lifting assembly 6 protected by the grating door frame assembly 4.

[0057] As a preferred embodiment, a grating opening 412 symmetrical to the inspection port 11 is provided on the front door frame 41. On both sides of the grating opening 412, grating mounting plates 43 are symmetrically arranged left and right with respect to the grating opening 412. Inside the grating opening 412, a grating 44 for detecting the inspected workpiece is provided on the grating mounting plate 43. On the opposite side of the grating 44 on the grating mounting plate 43, a button box 45 for manually controlling the sound insulation device is provided.

[0058] Specifically, through the detection of the grating 44, it can be determined whether there is an airbag to be inspected for inspection, which can be used as a function to realize automatic inspection. The button box 45 can manually control the sound insulation device to temporarily maintain production operations when the automatic inspection function fails or maintenance is required.

[0059] As a preferred embodiment, the materials of the composite board 3 arranged from the inside to the outside of the sound insulation cavity sequentially include a first glass wool 31, a damping plate 32, and a second glass wool 33. The volume density range of the first glass wool 31 and the second glass wool 33 is 20KG / m 3 -80KG / m 3 , and the volume density of the second glass wool 33 is not less than that of the first glass wool 31.

[0060] Specifically, through the design of the composite board 3 with a multi-layer structure, the interference of external noise on the sound insulation cavity can be effectively reduced. According to the on-site test results, building a composite board 3 with a thickness of 16mm and a sound insulation device with a glass wool of 80KG / m 3 volume density can achieve a sound insulation effect of less than 35dB inside the sound insulation cavity in an environment where the external noise is 75 - 80dB. And it is easy for those skilled in the art to know that other sound insulation materials can still be used for stacking the composite board 3, and the volume density of the glass wool can be adjusted according to the actual sound insulation requirements. In this application, the preferred volume density range of the sound insulation cotton is only set according to the detection requirements of the lumbar support airbag. In actual production requirements, not only the volume density of the sound insulation cotton can be adjusted, but also the structure of the composite board can be adjusted, such as adding shock pads and keel wooden frames. At the same time, for the partition 2, a sheet metal material is used to further increase the sound insulation effect of the sound insulation device.

[0061] As a preferred embodiment, the lifting mechanism 61 further includes at least two pressing plates 66 provided on the mounting plate 64 and a pressing plate cylinder 67 for controlling the pressing plate 66 to press the sound insulation door 5.

[0062] Specifically, when the sound-insulating door 5 is lifted to the inspection port 11 through the lifting mechanism 61 to form a sealed sound-insulating state in the sound-insulating cavity, the sound-insulating door 5 at the inspection port 11 can be further pressed by the pressing plate 66 to reduce the tiny gap between the sound-insulating door 5 and the inspection port 11, which affects the sound-insulating effect and can further enhance the sound-insulating ability of the sound-insulating device.

[0063] As a preferred embodiment, the gap between the main body frame 1 and the partition plate 2 is subjected to caulking and sealing treatment after scraping operation.

[0064] As a preferred embodiment, a maintenance window 12 is provided at the rear end of the main body frame 1, and a maintenance door 7 with an active switch is arranged on the maintenance window 12. The maintenance door 7 is connected to the composite board 3 on the main body frame 1 by means of hinge.

[0065] As a preferred embodiment, a handwheel clamping plate 13 for locking the maintenance door 7 is arranged beside the maintenance window 12, and the handwheel clamping plate 13 is connected with a rotating handwheel 14 for controlling the rotation of the handwheel clamping plate 13.

[0066] As a preferred embodiment, the materials of the maintenance door 7 arranged from the inside to the outside of the sound-insulating cavity include a first glass wool 31, a damping plate 32, and a second glass wool 33 in sequence.

[0067] Specifically, as Figure 9 shown, a plurality of sliding rollers are further arranged at the bottom of the main body frame 1, and the moving mode of the sound-insulating device can be realized through the sliding rollers, which can improve the efficiency of carrying the sound-insulating device and thus improve the production efficiency.

[0068] The utility model combines the main body frame, the partition plate with sound-insulating effect and the composite board to form a sound-insulating cavity with an inspection port. Further, a receiving cavity for installing the sound-insulating door and the lifting assembly is formed by the grating door frame assembly arranged at the front end of the inspection port. The sound-insulating door moves up and down in the receiving cavity through the lifting assembly, so as to change the sound-insulating cavity into an open state or a closed state. The sound-insulating door is also composed of a sound-insulating door frame, a composite board and a sealing strip frame, and seals the inspection port which is the only opening on the sound-insulating cavity, so that the sound-insulating device achieves the effect of isolating external noise interference. At the same time, the noise generated by the airbag detection is retained inside the sound-insulating cavity, which not only reduces the influence of the detection noise on the production process, but also improves the accuracy of the airbag noise detection result and further improves the working efficiency of the lumbar support airbag detection.

[0069] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A sound insulation device for waist support air bag detection, characterized in that: It comprises a main frame (1), a partition (2), a composite board (3), a grating door frame assembly (4), a soundproof door (5) and a lifting assembly (6); The partition (2) is embedded in the main frame (1) by means of bolt fixing, and the composite plate (3) is installed on the partition (2) to form a sound insulation cavity in the main frame (1), and the sound insulation cavity is located at the front end of the main frame (1) and is provided with an inspection port (11); The grating door frame assembly (4) is arranged at the front end of the inspection port (11) to form a receiving cavity for installing the soundproof door (5) and the lifting assembly (6); The soundproof door (5) is movably installed in the accommodating cavity below the inspection port (11), and the soundproof door (5) comprises in sequence a soundproof door frame (51), a composite plate (3), a sealing strip frame (52), and at least three sealing strips (53) arranged around the periphery of the sealing strip frame (52); The lifting assembly (6) includes a group of lifting mechanisms (61) symmetrically arranged in the accommodating cavity relative to the inspection port (11), and the lifting mechanism (61) includes a column (62) installed on the composite plate (3), a slide rail (63) arranged on the column (62), a mounting plate (64) slidably mounted on the slide rail (63) and connected to the soundproof door frame (51), and a pull rod cylinder (65) for providing lifting power for the mounting plate (64).

2. The sound insulation device for waist support air bag detection according to claim 1, characterized in that: The grating door frame assembly (4) comprises a front door frame (41) and side door frames (42) arranged on both sides of the front door frame (41) and connected to the outer composite plate (3) of the main frame (1); a signal indicator light (411) is arranged on the top of the front door frame (41); and an inspection window (421) for maintaining the lifting assembly (6) is detachably arranged in the middle of the side door frame (42) via bolt connection.

3. The sound insulation device for waist support air bag detection according to claim 2, characterized in that: The front door frame (41) is provided with a grating port (412) symmetrical to the inspection port (11); grating mounting plates (43) are symmetrically arranged on both sides of the grating port (412) relative to the grating port (412); a grating (44) for detecting the inspected workpiece is arranged on the inner side of the grating port (412); and a button box (45) for manually controlling the sound insulation device is arranged on the opposite side of the grating mounting plate (43) from the grating (44).

4. The sound insulation device for waist support air bag detection according to claim 1, characterized in that: The materials of the composite plate (3) arranged from the inside to the outside of the sound insulation cavity include first glass wool (31), a damping plate (32) and second glass wool (33).

5. The sound insulation device for waist support air bag detection according to claim 4, characterized in that: The capacity density of the first glass wool (31) and the second glass wool (33) is in the range of 20 KG / m 3 -80KG / m 3 , wherein the capacity density of the second glass wool (33) is not less than the capacity density of the first glass wool (31).

6. The sound insulation device for waist support air bag detection according to claim 1, characterized in that: The lifting mechanism (61) further comprises at least two pressing plates (66) arranged on the mounting plate (64) and a pressing plate cylinder (67) for controlling the pressing plates (66) to press the soundproof door (5).

7. The sound insulation device for waist support air bag detection according to claim 1, characterized in that: The gap between the main frame (1) and the partition (2) is scraped and then filled with glue for sealing.

8. The sound insulation device for waist support air bag detection according to claim 1, characterized in that: A maintenance window (12) is provided at the rear end of the main frame (1), and a maintenance door (7) with a movable switch is provided on the maintenance window (12), and the maintenance door (7) is connected to the composite plate (3) on the main frame (1) in a hinged manner.

9. The sound insulation device for waist support air bag detection according to claim 8, characterized in that: A handwheel clamp (13) for locking the maintenance door (7) is arranged beside the maintenance window (12), and a rotating handwheel (14) for controlling the handwheel clamp (13) is connected to the handwheel clamp (13).

10. The sound insulation device for waist support air bag detection according to claim 8, characterized in that: The materials of the maintenance door (7) arranged from the inside to the outside of the sound insulation cavity include first glass wool (31), a damping plate (32) and second glass wool (33).

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