A test bench for sound insulation of passenger room doors

Abstract

This utility model discloses a sound insulation test bench for passenger compartment doors, relating to the technical field of sound insulation test benches. It includes a base plate, on the upper side of which a soundproof cover is mounted. The soundproof cover has a mounting frame groove on its side. Two soundproof panels and a soundproof frame are slidably fitted onto the inner walls and top wall of the mounting frame groove, respectively. An adjustment assembly is provided between the soundproof frame and the two soundproof panels and the soundproof cover. A fixing frame is installed between the soundproof frame and the two soundproof panels. The passenger compartment door body is mounted on the inner wall of the fixing frame. A disassembly assembly is provided between the fixing frame and the two soundproof panels. By adjusting the first servo motor, the second servo motor drive gear, and the bidirectional threaded rod in the adjustment assembly, the positions of the soundproof panels and the soundproof frame can be flexibly adjusted to accommodate passenger compartment door bodies of different sizes. The disassembly assembly allows for quick disassembly of the fixing frame and the passenger compartment door body, saving time and manpower compared to the traditional method of extensive bolt installation.

Description

Technical Field

[0001] This utility model relates to the technical field of sound insulation test benches, and more specifically, to a sound insulation test bench for passenger room doors. Background Technology

[0002] With the rapid development of rail transit and other fields, the sound insulation performance of passenger compartment doors is receiving increasing attention. Accurately testing the sound insulation of passenger compartment doors is of great significance for improving passenger comfort.

[0003] Existing sound insulation test benches are generally custom-made according to the size of the passenger door, which cannot accommodate passenger doors of different sizes. Furthermore, a large number of bolts are required for the test bench to be installed with the passenger door, making it inconvenient to install and disassemble the passenger door.

[0004] Therefore, we have made improvements to this and proposed a test bench for passenger door sound insulation. Utility Model Content

[0005] The purpose of this utility model is to address the fact that the size of existing sound insulation test benches is generally customized according to the size of the passenger door, which cannot adapt to passenger doors of different sizes. Furthermore, the test bench requires a large number of bolts for installation with the passenger door, which is inconvenient for the installation and disassembly of the passenger door.

[0006] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0007] A test bench for sound insulation of passenger room doors is provided to improve the above-mentioned problems.

[0008] The application is as follows:

[0009] The system includes a base plate, on the upper side of which a soundproof cover is installed. The side of the soundproof cover has a mounting frame groove. The inner walls on both sides and the top wall of the mounting frame groove are slidably fitted with two soundproof panels and a soundproof frame, respectively. An adjustment component is provided between the soundproof frame and the two soundproof panels and the soundproof cover. A fixing frame is installed between the soundproof frame and the two soundproof panels. The inner wall of the fixing frame is fitted with the main body of the passenger compartment door. A disassembly component is provided between the fixing frame and the two soundproof panels.

[0010] By adjusting the first servo motor, the second servo motor drive gear, and the bidirectional threaded rod in the assembly, the position of the sound insulation panel and the sound insulation frame can be flexibly adjusted to adapt to different sizes of passenger door bodies. There is no need to specially customize a test bench according to the size of the passenger door, which greatly reduces costs and improves the applicability of the equipment. Using the disassembly and assembly assembly, simply press the lever to overcome the spring force and separate the locking block from the locking slot to quickly disassemble the fixing frame and passenger door body. Compared with the traditional method of using a large number of bolts for installation, it greatly simplifies the installation and disassembly process of passenger door, saving time and manpower.

[0011] As a preferred embodiment of the sound insulation test bench for passenger room doors provided by this utility model, the two sound insulation boards are slidably fitted between the two sides of the sound insulation frame, the bottom of the fixed frame is equipped with a positioning block, and the upper side of the base plate is provided with a positioning groove that cooperates with the positioning block.

[0012] As a preferred embodiment of the passenger room door sound insulation test bench provided by this utility model, a connecting plate is installed on one side of each of the two sound insulation boards, and sound insulation pads are installed on the bottom of the sound insulation frame and the sides of the two sound insulation boards.

[0013] As a preferred embodiment of the passenger room door sound insulation test bench provided by this utility model, the adjustment component includes a first movable groove formed on the inner walls of both sides of the mounting frame groove, both sound insulation plates are slidably fitted in the first movable groove, and a second movable groove is formed on the top wall of the mounting frame groove to slidably fit with the sound insulation frame.

[0014] As a preferred embodiment of the sound insulation test bench for guest room doors provided by this utility model, a first servo motor is installed on the top of the sound insulation cover, a gear is installed on the output shaft of the first servo motor, and a toothed block that penetrates the second moving groove to the outside and meshes with the gear is installed on the top of the sound insulation frame.

[0015] As a preferred embodiment of the sound insulation test bench for passenger room doors provided by this utility model, a second servo motor is installed on the side of the base plate, and the output shaft of the second servo motor is equipped with a bidirectional threaded rod located in the first moving groove. The bottom of the two sound insulation plates is respectively equipped with moving blocks that cooperate with the threads on both sides of the bidirectional threaded rod.

[0016] As a preferred embodiment of the passenger room door sound insulation test bench provided by this utility model, the disassembly and assembly assembly includes mounting blocks installed on the outer walls of both sides of the fixed frame with the inclined sides facing downwards. Both sides of the connecting plates are slidably fitted with prying blocks that cooperate with the mounting blocks. The lower side of the mounting block is provided with a slot, and the upper side of the prying block is provided with a locking block that cooperates with the slot.

[0017] As a preferred embodiment of the passenger room door sound insulation test bench provided by this utility model, the connecting plate has a first through groove that cooperates with the mounting block on the side facing the fixed frame, and a second through groove that communicates with the first through groove on the side facing the outside of the connecting plate. A spring is installed between the bottom of the lever block and the bottom of the second through groove.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: By adjusting the first servo motor and the second servo motor in the component to drive the bidirectional threaded rod and gear, the position of the sound insulation board and the sound insulation frame can be flexibly adjusted to adapt to different sizes of passenger door bodies. There is no need to specially customize the test bench according to the size of the passenger door, which greatly reduces the cost and improves the applicability of the equipment. Using the disassembly and assembly component, you only need to press the lever to overcome the spring force and separate the block from the slot to quickly disassemble the fixed frame and passenger door body. Compared with the traditional method of using a lot of bolts for installation, it greatly simplifies the installation and disassembly process of the passenger door, saving time and manpower. Attached Figure Description

[0019] Figure 1 A schematic diagram of the overall structure of the passenger compartment door sound insulation test bench provided in this application;

[0020] Figure 2 A schematic diagram of the overall front sectional structure of the passenger compartment door sound insulation test bench provided in this application;

[0021] Figure 3 A schematic diagram of the connection structure between the sound insulation panel and the sound insulation frame and the sound insulation cover provided in this application;

[0022] Figure 4 A schematic diagram of the connection structure between the two sound insulation panels and the sound insulation frame provided in this application;

[0023] Figure 5 A schematic diagram of the connection structure between the sound insulation panel and the fixing frame provided in this application;

[0024] Figure 6 This is a schematic diagram of the disassembly and assembly components provided in this application.

[0025] The image shows:

[0026] 1. Base plate; 2. Soundproof cover; 3. Mounting frame; 4. Soundproof panel; 5. Soundproof frame; 6. Adjustment assembly; 601. First moving slot; 602. Second moving slot; 603. First servo motor; 604. Gear; 605. Gear block; 606. Second servo motor; 607. Bidirectional threaded rod; 608. Moving block; 7. Fixed frame; 8. Passenger door body; 9. Disassembly assembly; 901. Mounting block; 902. Pulling block; 903. Slot; 904. First through slot; 905. Second through slot; 906. Slot; 907. Spring; 10. Positioning block; 11. Positioning slot; 12. Connecting plate; 13. Soundproof pad. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0028] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0029] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0033] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0034] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0035] Example 1

[0036] Please refer to Figure 1-6 A sound insulation test bench for passenger door includes: a base plate 1; a soundproof cover 2 is mounted on the upper side of the base plate 1; a mounting frame groove 3 is provided on the side of the soundproof cover 2; two soundproof panels 4 and a soundproof frame 5 are slidably fitted on the inner walls and top wall of the mounting frame groove 3, respectively; an adjustment component 6 is provided between the soundproof frame 5, the two soundproof panels 4, and the soundproof cover 2; a fixing frame 7 is installed between the soundproof frame 5 and the two soundproof panels 4; a passenger door body 8 is mounted on the inner wall of the fixing frame 7; and a disassembly component 9 is provided between the fixing frame 7 and the two soundproof panels 4. The two soundproof panels 4 are slidably fitted between the two sides of the soundproof frame 5; a positioning block 10 is installed at the bottom of the fixing frame 7; and a positioning groove 11 that mates with the positioning block 10 is provided on the upper side of the base plate 1. The adjustment assembly 6 includes a first movable groove 601 formed on the inner walls of both sides of the mounting frame groove 3. Both sound insulation plates 4 are slidably fitted within the first movable groove 601. The top wall of the mounting frame groove 3 has a second movable groove 602 that slidably fits with the sound insulation frame 5. A first servo motor 603 is mounted on the top of the sound insulation cover 2. A gear 604 is mounted on the output shaft of the first servo motor 603. A toothed block 605, which passes through the second movable groove 602 and meshes with the gear 604, is mounted on the top of the sound insulation frame 5. A second servo motor 606 is mounted on the side of the base plate 1. A bidirectional threaded rod 607 located in the first movable groove 601 is mounted on the output shaft of the second servo motor 606. Movable blocks 608, which engage with the threads on both sides of the bidirectional threaded rod 607, are respectively mounted on the bottom of the two sound insulation plates 4.

[0037] Implementation process: When using the passenger door sound insulation test bench, first install the passenger door body 8 into the fixed frame 7. At this time, the positioning block 10 is aligned with the positioning groove 11 on the base plate 1 and put down to play a preliminary positioning role. Then, start the second servo motor 606, and its output shaft drives the bidirectional threaded rod 607 to rotate. Since the threads on both sides of the bidirectional threaded rod 607 rotate in opposite directions, the two moving blocks 608 that cooperate with it will drive the two sound insulation plates 4 to move relative to or opposite to each other in the first moving groove 601. When the two soundproof panels 4 move towards each other, they gradually approach the sides of the fixed frame 7 until the soundproof pads 13 on both sides are tightly fitted with the fixed frame 7, achieving sealing and initial fixation of both sides of the passenger door body 8. Then, the first servo motor 603 is started, and its output shaft drives the gear 604 to rotate. The gear block 605 meshing with the gear 604 will drive the soundproof frame 5 to move up and down in the second moving groove 602, so that the soundproof pads 13 at the bottom of the soundproof frame 5 are in close contact with the top of the fixed frame 7, further fixing the passenger door body 8 from above and enhancing the sealing. The overall soundproof cover 2 isolates external noise from the outside, avoiding interference from external environmental noise to the test process. Soundproof pads 13 are provided between the soundproof panels 4 and the soundproof frame 5 and the fixed frame 7. Under the action of the adjustment component 6, they are tightly fitted, effectively reducing sound leakage and ensuring the sealing of the test environment. This provides a strong guarantee for accurately testing the sound insulation of the passenger door and improves the accuracy of the test results.

[0038] Benefits of implementation: The position of the sound insulation panel 4 and the sound insulation frame 5 can be flexibly adjusted to adapt to different sizes of the guest room door body 8.

[0039] Example 2

[0040] Each of the two soundproof panels 4 has a connecting plate 12 installed on one side, and the bottom of the soundproof frame 5 and the sides of the two soundproof panels 4 are equipped with soundproof pads 13. The disassembly assembly 9 includes mounting blocks 901 installed on the outer walls of the fixed frame 7 with their inclined edges facing downwards. Each of the two connecting plates 12 has a sliding engagement block 902 that engages with the mounting block 901. The lower side of the mounting block 901 has a slot 903, and the upper side of the engagement block 902 has a locking block 906 that engages with the slot 903. The side of the connecting plate 12 facing the fixed frame 7 has a first through groove 904 that engages with the mounting block 901, and the side of the connecting plate 12 facing outwards has a second through groove 905 that communicates with the first through groove 904. A spring 907 is installed between the bottom of the engagement block 902 and the bottom of the second through groove 905.

[0041] Implementation process: When it is necessary to disassemble the main body 8 of the passenger door, press the lever 902 to disengage the locking block 906 from the slot 903, and compress the spring 907. At this time, the fixing frame 7 can be removed from the installation structure composed of the two sound insulation panels 4 and the sound insulation frame 5, completing the disassembly. The operation is convenient and efficient. During the testing process, the sound insulation cover 2 provides a sound insulation environment for the whole, reducing external noise interference. The internal components work together to ensure the stable installation of the passenger door. Microphones and other testing equipment are placed on both sides of the passenger door to collect sound data from both sides of the passenger door for subsequent sound insulation calculation.

[0042] Benefits of implementation: The fixed frame 7 between the sound insulation panel 4 and the sound insulation frame 5 and the main body of the passenger door 8 can be quickly disassembled and assembled.

[0043] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the utility model, are covered within the scope of the claims of the present utility model.

Claims

1. A test bench for sound insulation volume of a passenger door, characterized in that, include: A base plate (1) is provided with a soundproof cover (2) installed on the upper side of the base plate (1). The side of the soundproof cover (2) is provided with a mounting frame groove (3). The inner walls on both sides and the top wall of the mounting frame groove (3) are respectively slidably fitted with two soundproof panels (4) and a soundproof frame (5). An adjustment component (6) is provided between the soundproof frame (5) and the two soundproof panels (4) and the soundproof cover (2). A fixing frame (7) is installed between the soundproof frame (5) and the two soundproof panels (4). The inner wall of the fixing frame (7) is fitted with the main body of the passenger door (8). A disassembly and assembly component (9) is provided between the fixing frame (7) and the two soundproof panels (4).

2. The test bench for sound insulation volume of a passenger door according to claim 1, characterized in that, The two sound insulation panels (4) are slidably fitted between the two sides of the sound insulation frame (5). The bottom of the fixed frame (7) is equipped with a positioning block (10), and the upper side of the base plate (1) is provided with a positioning groove (11) that cooperates with the positioning block (10).

3. The test bench for sound insulation volume of a passenger door according to claim 1, characterized in that, A connecting plate (12) is installed on one side of each of the two sound insulation panels (4), and a sound insulation pad (13) is installed on the bottom of the sound insulation frame (5) and the sides of the two sound insulation panels (4).

4. A test bench for sound insulation of passenger room doors according to claim 1, characterized in that, The adjustment component (6) includes a first moving groove (601) opened on the inner walls of both sides of the mounting frame groove (3), and both sound insulation plates (4) are slidably fitted in the first moving groove (601). The top wall of the mounting frame groove (3) is provided with a second moving groove (602) that slidably fits the sound insulation frame (5).

5. A bench for testing the sound insulation of a door according to claim 4, characterized in that The top of the soundproof cover (2) is equipped with a first servo motor (603), the output shaft of the first servo motor (603) is equipped with a gear (604), and the top of the soundproof frame (5) is equipped with a toothed block (605) that passes through the second moving groove (602) to the outside and meshes with the gear (604).

6. A bench for testing the sound insulation of a door according to claim 5, characterized in that, The bottom plate (1) is equipped with a second servo motor (606) on its side. The output shaft of the second servo motor (606) is equipped with a bidirectional threaded rod (607) located in the first moving groove (601). The bottom of the two sound insulation plates (4) is respectively equipped with moving blocks (608) that cooperate with the threads on both sides of the bidirectional threaded rod (607).

7. The test bench for sound insulation volume of a passenger door according to claim 3, characterized in that, The assembly / disassembly assembly (9) includes mounting blocks (901) installed on the outer walls of the fixed frame (7) with the inclined sides facing downwards. Both sides of the connecting plates (12) are slidably fitted with prying blocks (902) that cooperate with the mounting blocks (901). The mounting blocks (901) have a slot (903) on their lower side, and the prying blocks (902) have a locking block (906) that cooperates with the slot (903) on their upper side.

8. The test bench for sound insulation volume of a passenger door according to claim 7, characterized in that, The connecting plate (12) has a first through groove (904) on the side facing the fixed frame (7) that cooperates with the mounting block (901). The connecting plate (12) has a second through groove (905) on the side facing outward that communicates with the first through groove (904). A spring (907) is installed between the bottom of the push block (902) and the bottom of the second through groove (905).

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