Rail transit noise testing device

Abstract

The utility model discloses a rail transit noise testing device which comprises a supporting frame mechanism, a telescopic main rod matched with the supporting frame mechanism for installation and a probe detection mechanism installed on the telescopic main rod and used for noise testing. The probe detection mechanism comprises a probe positioning ring adjustably installed on the telescopic main rod, a probe positioning column arranged on the probe positioning ring and a probe supporting assembly installed in cooperation with the probe positioning column. The probe supporting assembly is used for being matched with positioning installation of the detection probe to achieve noise detection in different directions. According to the technical scheme, compared with a traditional rail transit noise testing mode that a crane is used, a scaffold is built and the like, the rail transit noise testing device has the advantages that the telescopic main rod is installed on the supporting frame mechanism and matched with the probe detection mechanism for positioning and installation, noise detection in multiple directions can be achieved, the whole device achieves the effects of being light in weight and easy to carry, and the cost is reduced. The test preparation work consumes short time, the test floor area is small, and rapid detection is convenient to realize.

Description

Technical Field

[0001] The utility model relates to the field of noise testing, in particular to a rail transit noise testing device. Background Art

[0002] The scope of rail transit noise detection includes: building air sound insulation, floor impact sound insulation, reverberation time, environmental noise, industrial enterprise noise, industrial enterprise factory boundary noise, residential indoor noise, rail transit, passenger car, automobile, ship and other noise detection.

[0003] For vertical testing of rail transit near-field noise, currently, cranes and scaffolding are mainly used, and the acoustic sensor is fixed vertically at the required position of the crane or scaffolding for measurement. This method uses cranes and scaffolding, which requires a large area of ​​site (even the roadway), requires the cooperation of multiple people, and takes a long time. Although the existing method of using cranes and scaffolding brackets can achieve fixed installation of sensors, it cannot be flexibly adjusted. After one test, it needs to be manually adjusted and then tied and fixed. The preparation process is time-consuming and labor-intensive, and the test efficiency is low.

[0004] Therefore, in order to solve the above problems, a rail transit noise testing device is needed to solve the above problems. Utility Model Content

[0005] In view of this, the rail transit noise testing device of this technical solution, compared with traditional rail transit noise testing methods such as using cranes and scaffolding, can realize noise detection in multiple directions by installing a telescopic main pole on the support frame mechanism and cooperating with the probe detection mechanism for positioning and installation. The overall device is lightweight and easy to carry, the test preparation work is time-saving, the test occupies a small area, and it is easy to achieve rapid detection.

[0006] A rail transit noise testing device comprises a support frame mechanism, a telescopic main pole installed in conjunction with the support frame mechanism, and a probe detection mechanism installed on the telescopic main pole for noise testing; the probe detection mechanism comprises a probe positioning ring adjustably installed on the telescopic main pole, a probe positioning post provided on the probe positioning ring, and a probe support assembly installed in conjunction with the probe positioning post; the probe support assembly is used to cooperate with the positioning installation of the detection probe to realize noise detection in different directions.

[0007] Furthermore, there are multiple probe positioning columns, and the multiple probe positioning columns are evenly distributed on the probe positioning ring. The probe positioning columns include a positioning column body that can be adjusted and installed along the radial direction of the probe positioning ring, an inner liner arranged on the positioning column body, and a magnetic seat installed on the outer end of the positioning column body. The probe support assembly is installed in conjunction with the magnetic seat.

[0008] Furthermore, the probe support assembly includes a probe cover, a probe arm hinged to the probe cover, and a magnetic pad arranged at the end of the probe arm. The probe cover is positioned and installed in conjunction with the detection probe, and the magnetic pad is adsorbed and installed in conjunction with the magnetic base.

[0009] Furthermore, the middle portion of the probe cover protrudes outward in a radial direction to form a sleeve arm that is hingedly installed to cooperate with the probe support arm, and the probe cover is made of elastic material.

[0010] Furthermore, the support frame mechanism includes a main telescopic support frame and a secondary telescopic support frame hingedly installed with the main telescopic support frame, and the end of the telescopic main rod passes through the main telescopic support frame and the secondary telescopic support frame and is locked and installed.

[0011] Furthermore, a positioning plate assembly is connected and installed at the bottom of the main telescopic support frame, and the positioning plate assembly includes a bottom rod installed on the main telescopic support frame, a ball joint installed in conjunction with the bottom rod, and a positioning plate installed in conjunction with the ball joint. A ball joint mounting seat installed in conjunction with the ball joint is provided in the middle of the positioning plate, and the ball joint is installed in conjunction with the ball joint mounting seat for angle adjustment.

[0012] Furthermore, the positioning plate is provided with ground nail holes for fastening to the ground.

[0013] Furthermore, a counterweight hook for adding a counterweight is provided on the secondary telescopic support frame.

[0014] Furthermore, it also includes a wind rope assembly installed in conjunction with the telescopic main pole, the wind rope assembly includes multiple wind ropes installed on the telescopic main pole and a wind rope ring installed on the telescopic main pole, and the end of the wind rope is provided with a wind rope positioning nail.

[0015] The beneficial effects of the present invention are as follows: compared with traditional rail transit noise testing methods such as using cranes and scaffolding, the rail transit noise testing device of the present technical solution can realize noise detection in multiple directions by installing a telescopic main pole on the support frame mechanism and cooperating with the probe detection mechanism for positioning and installation. The overall device is lightweight and easy to carry, the test preparation work is time-saving, the test occupies a small area, and it is easy to realize rapid detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 It is an overall schematic diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the installation of the wind rope ring in this practical application;

[0019] Figure 3 This is a schematic diagram of the probe support assembly of the utility model;

[0020] Figure 4 This is a schematic diagram of the positioning plate assembly of the utility model;

[0021] Figure 5 This is a schematic diagram of the counterweight hook of the utility model;

[0022] Figure 6 This is a schematic diagram of the support frame mechanism of the present utility model. DETAILED DESCRIPTION

[0023] Figure 1 It is an overall schematic diagram of the utility model; Figure 2 This is a schematic diagram of the installation of the wind rope ring in this practical application; Figure 3 This is a schematic diagram of the probe support assembly of the utility model; Figure 4 This is a schematic diagram of the positioning plate assembly of the utility model; Figure 5 This is a schematic diagram of the counterweight hook of the utility model; Figure 6 This is a schematic diagram of the support frame mechanism of the present invention; as shown in the figure, a rail transit noise testing device comprises a support frame mechanism 2, a telescopic main rod 1 (an existing telescopically adjustable rod can be used) installed in conjunction with the support frame mechanism 2, and a probe detection mechanism installed on the telescopic main rod 1 for noise testing; the probe detection mechanism comprises a probe positioning ring 7 adjustably installed on the telescopic main rod, a probe positioning column 8 provided on the probe positioning ring 7, and a probe support assembly installed in conjunction with the probe positioning column 8; the probe support assembly is used to cooperate with the positioning installation of the detection probe to realize noise detection in different directions; the rail transit noise testing device of this technical solution, compared with traditional rail transit noise testing methods such as using cranes and scaffolding, can realize noise detection in multiple directions by installing a telescopic main rod installed on the support frame mechanism in conjunction with the probe detection mechanism for positioning and installation, and the overall device is lightweight and easy to carry, the test preparation work is time-saving, the test occupies a small area, and is convenient for rapid detection.

[0024] In this embodiment, the probe positioning posts 8 are multiple and evenly distributed on the probe positioning ring 7. The probe positioning posts 8 include a positioning post body that can be adjusted and installed along the radial direction of the probe positioning ring, an inner liner provided on the positioning post body, and a magnetic seat installed at the outer end of the positioning post body. The probe support assembly is installed in conjunction with the magnetic seat. Figure 3As shown, the probe positioning ring 7 is a lockable and adjustable clamp structure, which is convenient for positioning and installation in conjunction with the telescopic main rod 1. The probe positioning column 8 includes a positioning column body that is passed through the probe positioning ring 7 for telescopic adjustment. The inner end of the positioning column body is connected and installed with an inner liner, and the outer end is correspondingly installed with a magnetic seat. The radial adjustment of the positioning column body and the inner liner can be achieved by rotating and adjusting the magnetic seat. When the positioning column body is radially adjusted in conjunction with the inner liner, it can be further locked and adjusted to ensure the stability of the overall structural installation.

[0025] In this embodiment, the probe support assembly includes a probe cover 11, a probe arm 10 hingedly connected to the probe cover 11, and a magnetic pad 9 disposed at the end of the probe arm 10. The probe cover 11 is mounted to the detection probe for positioning, and the magnetic pad 9 is attached to the magnetic base for attachment. The magnetic pad 9 is attached to the end of the probe arm 10 via a ball joint structure. The positioning post 8 and the magnetic pad 9 can be attached to each other, saving installation time. The multiple positioning posts 8 distributed on the probe positioning ring 7 facilitate detection in multiple directions.

[0026] In this embodiment, the central portion of the probe cover 11 protrudes radially outward to form a sleeve arm that is hingedly mounted with the probe support arm. The probe cover 11 is made of an elastic material. The probe support arm 10 is hingedly mounted with the sleeve arm, which facilitates angle adjustment. The probe cover 11 is correspondingly made of rubber or other materials to facilitate positioning and mounting with the detection probe 12.

[0027] In this embodiment, the support frame mechanism 2 includes a main telescopic support frame and a secondary telescopic support frame 22 that is hingedly mounted with the main telescopic support frame 21. The end of the telescopic main rod 1 passes through the main telescopic support frame and the secondary telescopic support frame and is locked and mounted. Figure 6 As shown, the main telescopic support frame is distributed in a triangular structure, and the auxiliary telescopic support frame 22 is a double-rod structure, the ends of which are hingedly installed with the main telescopic support frame 21. The main and auxiliary telescopic support frames are positioned and locked with the telescopic main rod 1 to ensure the installation stability of the overall structure.

[0028] In this embodiment, the bottom 13 of the main telescopic support frame 21 is connected to a positioning plate assembly 5, and the positioning plate assembly includes a bottom rod 14 installed on the main telescopic support frame 21, a ball joint 15 installed in conjunction with the bottom rod 14, and a positioning plate 16 installed in conjunction with the ball joint 15. A ball joint mounting seat 18 is provided in the middle of the positioning plate 16 to be installed in conjunction with the ball joint. The ball joint is installed in conjunction with the ball joint mounting seat for angle adjustment. The bottom rod 14 is telescopically adjustable and installed on the bottom 13 of the main telescopic support frame 21, and a ball joint 15 is installed at its end. The ball joint 15 is installed in conjunction with the ball joint mounting seat 18. A bearing is installed in conjunction with the lower end of the ball joint mounting seat 18, such as Figure 4As described above, when the positioning plate 16 is in a horizontal state, the positioning plate cooperates with the ball joint 15 to achieve the role of positioning support. When the positioning plate 16 is perpendicular to the ground, the bearing and the ball joint mounting seat 18 rotate and cooperate. At this time, the positioning plate 16 acts as a wheel, which facilitates the movement of the overall structure. The ball joint mounting seat 18 contains a ball joint locking knob so that the positioning plate maintains stability in the positioning support or wheel state.

[0029] In this embodiment, the positioning plate 16 is provided with ground nail holes 17 for fastening to the ground. When the positioning plate 16 serves as a ground positioning support, the ground nails are locked in the ground nail holes 17 to ensure the stability of the structural installation.

[0030] In this embodiment, the auxiliary telescopic support frame 22 is provided with a counterweight hook for adding a counterweight. Figure 5 As shown, a counterweight hook 20 is provided on the secondary telescopic support frame 22 , and the counterweight block 4 is used in conjunction with the counterweight hook 20 .

[0031] This embodiment also includes a wind rope assembly installed in conjunction with the telescopic main pole. The wind rope assembly includes multiple wind ropes installed on the telescopic main pole 1 and a wind rope collar 6 installed on the telescopic main pole. The ends of the wind ropes are provided with wind rope positioning nails 3. The wind rope positioning nails 3 pass through the wind rope collar 6 and are positioned with the reference surface to improve the stability of the overall structure.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A rail transit noise testing device, characterized by: It includes a support frame mechanism, a telescopic main pole installed in conjunction with the support frame mechanism, and a probe detection mechanism installed on the telescopic main pole for noise testing; the probe detection mechanism includes a probe positioning ring adjustably installed on the telescopic main pole, a probe positioning column set on the probe positioning ring, and a probe support assembly installed in conjunction with the probe positioning column; the probe support assembly is used to cooperate with the positioning installation of the detection probe to realize noise detection in different directions.

2. The rail transit noise testing device according to claim 1, characterized in that: There are multiple probe positioning columns, and the multiple probe positioning columns are evenly distributed on the probe positioning ring. The probe positioning columns include a positioning column body that can be adjusted and installed along the radial direction of the probe positioning ring, an inner liner arranged on the positioning column body, and a magnetic seat installed on the outer end of the positioning column body. The probe support assembly is installed in conjunction with the magnetic seat.

3. The rail transit noise testing device according to claim 2, characterized in that: The probe support assembly includes a probe cover, a probe support arm hinged on the probe cover, and a magnetic pad arranged at the end of the probe support arm. The probe cover is positioned and installed in conjunction with the detection probe, and the magnetic pad is adsorbed and installed in conjunction with the magnetic base.

4. The rail transit noise testing device according to claim 3, characterized in that: The middle portion of the probe cover protrudes outward in a radial direction to form a sleeve arm which is hingedly installed to match the probe support arm. The probe cover is made of elastic material.

5. The rail transit noise testing device according to claim 4, characterized in that: The support frame mechanism includes a main telescopic support frame and a secondary telescopic support frame hingedly installed with the main telescopic support frame. The end of the telescopic main rod passes through the main telescopic support frame and the secondary telescopic support frame and is locked and installed.

6. The rail transit noise testing device according to claim 5, characterized in that: A positioning plate assembly is connected to the bottom of the main telescopic support frame, and the positioning plate assembly includes a bottom rod installed on the main telescopic support frame, a ball joint installed in conjunction with the bottom rod, and a positioning plate installed in conjunction with the ball joint. A ball joint mounting seat installed in conjunction with the ball joint is provided in the middle of the positioning plate, and the ball joint is installed in conjunction with the ball joint mounting seat for angle adjustment.

7. The rail transit noise testing device according to claim 6, characterized in that: The positioning plate is provided with ground nail holes for fastening and installing on the ground.

8. The rail transit noise testing device according to claim 5, characterized in that: The secondary telescopic support frame is provided with a counterweight hook for adding a counterweight.

9. The rail transit noise testing device according to claim 1, characterized in that: It also includes a wind rope assembly installed in conjunction with the telescopic main pole. The wind rope assembly includes multiple wind ropes installed on the telescopic main pole and a wind rope ring installed on the telescopic main pole. Wind rope positioning nails are provided at the ends of the wind ropes.

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