A top-mounted antenna fixture for automotive testing

Abstract

The utility model relates to the field of automobile test especially relates to a roof antenna fixing clamp for automobile test, including clamping seat, sliding slot, telescopic arm, spring and pivot no.

Description

Technical Field

[0001] This utility model relates to the field of automotive testing, and in particular to a top-mounted antenna fixing clamp for automotive testing. Background Technology

[0002] In the process of automotive R&D, whole vehicle electromagnetic compatibility testing, wireless communication performance verification and autonomous driving sensor calibration, it is often necessary to temporarily install various test antennas on the top of the vehicle, such as GPS antennas, 5G communication antennas and radar calibration antennas. These antennas are usually small in size and light in weight, but have extremely high requirements for installation position, height and stability. Vibration or displacement during the experiment may affect the signal reception accuracy and the reliability of test data.

[0003] Currently, most test sites use adhesive and suction cups to install antennas. While adhesive methods can provide some stability, they can leave residue after disassembly, damaging the paint and making them unusable. Suction cup structures rely on vacuum adsorption, but they are prone to falling off under high temperatures and sunlight due to material aging or decreased airtightness. They can also lose adhesion when subjected to airflow impacts at high speeds, posing safety hazards. In other words, they suffer from problems such as insecure installation, susceptibility to wind resistance, difficulty in disassembly, and damage to the paint.

[0004] Therefore, it is necessary to design a top-mounted antenna mounting clamp for automotive testing. Utility Model Content

[0005] In order to overcome the shortcomings of existing antenna mounting and fixing methods, such as unstable installation and susceptibility to external factors, the purpose of this utility model is to provide a top-mounted antenna fixing clamp for automotive testing.

[0006] The technical solution is as follows: A top-mounted antenna fixing fixture for automobile testing includes a clamping base, a sliding groove, a telescopic arm, a spring, a first rotating shaft, a connecting rod, a second rotating shaft, a fixing block, a screw, an adjusting handwheel, a stop block, and a test antenna. Sliding grooves are provided in the middle of both sides of the clamping base. Telescopic arms are slidably mounted in the sliding grooves on both sides of the clamping base. Springs are fixed between the end of each telescopic arm near the clamping base and the bottom surface of the sliding groove. A first rotating shaft is fixedly mounted at the end of each telescopic arm away from the clamping base. A connecting rod is rotatably mounted on each of the two first rotating shafts. A second rotating shaft is fixedly mounted on the lower side of each connecting rod that is close to each other. A fixing block is rotatably mounted on each of the two second rotating shafts. A screw is threaded through the middle of the fixing block. An adjusting handwheel is fixedly connected to the lower end of the screw, and a stop block is fixedly connected to the upper end of the screw. A test antenna is fixedly mounted on the right side of the upper surface of the clamping base.

[0007] As a further preferred option, the end of the telescopic arm away from the clamping seat is an arc-shaped structure.

[0008] As a further preferred option, the abutment block is made of soft rubber.

[0009] As a further preferred option, it also includes handles, with handles fixedly installed on the upper surface of both telescopic arms away from the clamping seat.

[0010] As a further preferred option, it also includes an anti-slip pad, with the lower end face of the clamp fixedly installed with an anti-slip pad.

[0011] As a further preferred option, the anti-slip mat has a certain number of anti-slip patterns.

[0012] The present invention has the following advantages: 1. The present invention sets up a clamping mechanism consisting of a connecting rod, a fixing block, a screw, an adjusting handwheel and an abutting block. By rotating the adjusting handwheel, the abutting block is pressed against the roof of the car, thereby achieving clamping and fixing from both the inside and outside of the roof. This significantly improves the clamping firmness and effectively resists vibration and wind resistance.

[0013] 2. This utility model, by setting up a telescopic mechanism consisting of a telescopic arm, a handle, and a spring, adjusts the extension length of the telescopic arm according to the width of the car, so that the connecting rod and fixing components can be adapted to the window positions of different car models, thereby improving the versatility and installation flexibility of the clamp. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the spring, shaft 1, and connecting rod of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the adjusting handwheel, test antenna, and anti-slip pad of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the screw, adjusting handwheel, and abutment block of this utility model.

[0018] The labels in the diagram are as follows: 1-Clamping seat, 101-Sliding groove, 2-Telescopic arm, 3-Spring, 4-Shaft 1, 5-Connecting rod, 6-Shaft 2, 7-Fixing block, 8-Screw, 9-Adjusting handwheel, 10-Abutting block, 11-Handle, 12-Test antenna, 13-Anti-slip pad. Detailed Implementation

[0019] Example: A top-mounted antenna mounting clamp for automotive testing, such as... Figures 1-4As shown, the device includes a clamping base 1, a sliding groove 101, a telescopic arm 2, a spring 3, a first rotating shaft 4, a connecting rod 5, a second rotating shaft 6, a fixing block 7, a screw 8, an adjusting handwheel 9, a contact block 10, and a test antenna 12. Sliding grooves 101 are provided in the middle of both the left and right sides of the clamping base 1. Telescopic arms 2 are slidably mounted within the sliding grooves 101 on both sides of the clamping base 1. A spring 3 is fixed between the end of each telescopic arm 2 closest to the clamping base 1 and the bottom surface of the sliding groove 101. The ends of each telescopic arm 2 furthest from the clamping base 1 are fixed. The device is equipped with a first rotating shaft 4, and two connecting rods 5 are rotatably mounted on each of the two first rotating shafts 4. The lower part of the two connecting rods 5 is fixedly mounted on the side close to each other. The two second rotating shafts 6 are rotatably mounted on each of the two second rotating shafts 6. A screw 8 is threaded through the middle of the upper part of the fixed block 7. An adjusting handwheel 9 is fixedly connected to the lower end of the screw 8. An abutment block 10 is fixedly connected to the upper end of the screw 8. A test antenna 12 is installed on the right side of the upper end face of the clamping seat 1 by screws. The end of the telescopic arm 2 away from the clamping seat 1 is an arc-shaped structure. The abutment block 10 is made of soft rubber.

[0020] like Figure 1 , Figure 2 and Figure 4 As shown, it also includes handles 11. The upper surfaces of the two telescopic arms 2, away from the clamping seat 1, are each fitted with handles 11 by screws.

[0021] like Figure 3 and Figure 4 As shown, it also includes an anti-slip pad 13. The lower end face of the clamping seat 1 is fitted with an anti-slip pad 13 by screws, and the anti-slip pad 13 has a certain number of anti-slip patterns.

[0022] This device is used when a test antenna 12 needs to be temporarily installed on the roof of a vehicle. First, the clamping seat 1 is placed in the middle of the car roof. An anti-slip pad 13 is fixedly installed on the lower end of the clamping seat 1. The anti-slip pad 13 has a certain number of anti-slip textures to increase the friction between it and the roof and prevent the clamp from slipping. The operator pulls the handle 11 on the side of the upper end of the two telescopic arms 2 away from the clamping seat 1, so that the telescopic arms 2 slide outward against the elastic force of the spring 3 and extend out of the sliding grooves 101 on both sides of the clamping seat 1. At this time, the spring 3 is stretched and stores the return elastic force. When the pivot 4 at the end of the telescopic arm 2 is above the left and right side windows of the car, the connecting rod 5 is rotated downward around the pivot 4. At the same time, the fixing block 7 swings around the pivot 6, so that the fixing assembly composed of the screw 8, adjusting handwheel 9 and abutment block 10 passes through the gap in the window from the outside of the window and rotates into the car body. At this time, the fixing block 7 is located in the car body. Inside the car, the screw 8 is driven upward by rotating the adjustment handwheel 9. The abutment block 10 fixed to the upper end of the screw 8 moves upward until it contacts the car's interior roof and applies continuous pressure. The abutment block 10 is made of soft rubber and can firmly and undamagedly abut against the interior roof. Through the squeezing and clamping action of the fixing block 7 and the abutment block 10, the clamp is firmly fixed to the roof structure. After tightening, the handle 11 is released, and the stretched spring 3 continuously applies an inward restoring force, so that the telescopic arm 2 always tends to retract towards the center of the clamping seat 1. This force is transmitted through the telescopic arm 2 and the rotating shaft 4, so that the connecting rod 5 fits more tightly against the outer edge of the upper edge of the window, further enhancing the stability and vibration resistance of the clamping. The test antenna 12 is fixedly installed on the right side of the upper end face of the clamping seat 1, which can ensure that the test antenna 12 maintains a stable position and height during the test, meeting the requirements of high-precision testing.

Claims

1. A top-mounted antenna fixing clamp for automotive testing, characterized in that: The device includes a clamping base (1), a sliding groove (101), a telescopic arm (2), a spring (3), a rotating shaft one (4), a connecting rod (5), a rotating shaft two (6), a fixing block (7), a screw (8), an adjusting handwheel (9), a contact block (10), and a test antenna (12). Sliding grooves (101) are provided in the middle of both the left and right sides of the clamping base (1). Telescopic arms (2) are slidably installed in the sliding grooves (101) on both sides of the clamping base (1). A spring (3) is fixedly connected between the end of each telescopic arm (2) near the clamping base (1) and the bottom surface of the sliding groove (101). Two telescopic arms (2) are fixed with a rotating shaft (4) at the end away from the clamping seat (1). A connecting rod (5) is rotatably installed on each of the two rotating shafts (4). A rotating shaft (6) is fixed on the side of the lower part of the two connecting rods (5) that is close to each other. A fixing block (7) is rotatably installed on each of the two rotating shafts (6). A screw (8) is threaded through the middle of the upper part of the fixing block (7). An adjusting handwheel (9) is fixedly connected to the lower end of the screw (8). An abutment block (10) is fixedly connected to the upper end of the screw (8). A test antenna (12) is fixedly installed on the right side of the upper end face of the clamping seat (1).

2. The overhead antenna fixing clamp for automotive testing as described in claim 1, characterized in that: The end of the telescopic arm (2) away from the clamping seat (1) is an arc-shaped structure.

3. The overhead antenna fixing clamp for automotive testing as described in claim 2, characterized in that: The abutment block (10) is made of soft rubber.

4. The overhead antenna fixing clamp for automotive testing as described in claim 3, characterized in that: It also includes handles (11), and handles (11) are fixedly installed on the side of the upper end face of the two telescopic arms (2) away from the clamping seat (1).

5. A top-mounted antenna fixing clamp for automotive testing as described in claim 4, characterized in that: It also includes an anti-slip pad (13), and the lower end face of the clamping seat (1) is fixedly installed with an anti-slip pad (13).

6. The overhead antenna fixing clamp for automotive testing as described in claim 5, characterized in that: The anti-slip mat (13) has a certain number of anti-slip patterns.

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