Vehicle speed measuring device

Abstract

The utility model relates to the technical field of speed measurement, and discloses a vehicle speed measurement device which comprises an installation seat, a speed measurement sensor is arranged above the installation seat, a motor is fixedly installed on the side wall of the installation seat, a lead screw is fixedly installed at the output end of the motor, and the cambered surface of the lead screw is connected with a lead screw sliding block in a sliding mode. According to the vehicle speed measuring device, a motor starts a lead screw to rotate, a lead screw sliding block drives a fixing plate to clamp and fix the outer wall of a speed measuring sensor, meanwhile, a stabilizing frame rotates on the cambered surface of a straight rod in a self-adaptive mode under the action of a torsional spring, and then the stabilizing frame is attached to the surface of the speed measuring sensor; and secondly, the threaded strips are arranged on the cylinder to be matched with a plurality of grooves, so that a better lifting effect is provided for the surface of the speed measurement sensor in the vertical direction, and then the stability of the speed measurement sensor is guaranteed when a vehicle runs.

Description

Technical Field

[0001] The utility model relates to the technical field of speed measurement, in particular to a vehicle speed measurement device. Background Technique

[0002] When measuring the vehicle speed, a speed measurement device is needed. However, due to the fine internal structure of the speed measurement device, it needs to be stably and safely installed on the vehicle to ensure the accuracy of the speed measurement result.

[0003] According to a disclosed vehicle speed measurement device (Publication No.: CN212921358U), in the above application, the plug block is inserted into the connection block, and at the same time, the limiting component can prevent the plug block from separating from the connection block, so as to limit the speed measurement sensor on the top of the bottom plate. At the same time, a fixed clamping plate is fixedly installed on the bottom plate. After connecting one end of the speed measurement sensor to the fixed clamping plate, the driving gear is driven to rotate by the rotating part.

[0004] However, in the actual use process of the above device, due to the fine internal structure of the speed measurement device, vibrations will occur during driving, and it needs to be stably and safely installed on the vehicle to ensure the accuracy of the speed measurement result. In view of this, we propose a vehicle speed measurement device. Content of the Utility Model

[0005] The purpose of the utility model is to provide a vehicle speed measurement device to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A vehicle speed measurement device, including a mounting base, a speed measurement sensor is arranged above the mounting base, a motor is fixedly installed on the side wall of the mounting base, a lead screw is fixedly installed at the output end of the motor, a lead screw slider is slidably connected to the arc surface of the lead screw, a fixing plate is fixedly installed on the surface of the lead screw slider, a stabilizing mechanism is arranged above the mounting base, and a promoting mechanism is arranged above the mounting base. The stabilizing mechanism includes:

[0007] A mounting groove is opened on the side wall of the fixing plate. A straight rod is movably connected inside the mounting groove. A torsion spring is fixedly installed on the arc surface of the straight rod. One end of the torsion spring far from the arc surface of the straight rod is fixedly connected to a stabilizing frame. A round rod is fixedly installed on the outer wall of the stabilizing frame.

[0008] A cylinder is movably connected to the arc surface of the round rod. A threaded strip is fixedly installed on the surface of the cylinder. A groove is opened on the arc surface of the threaded strip.

[0009] Preferably, the promoting mechanism includes a mounting box fixedly installed on the upper surface of the fixing plate. A worm is movably connected to the inner wall of the mounting box. A worm gear is fixedly installed on the arc surface of the end of the straight rod.

[0010] Preferably, one end of the worm is movably connected to the inner wall of the installation box, and the other end of the worm penetrates through the installation box, so that the worm can be stably adjusted on the inner wall of the installation box.

[0011] Preferably, a rotation hole is formed on the surface of the stabilizing frame, the diameter of the rotation hole is adapted to the diameter of the straight rod, and the stabilizing frame is sleeved on the arc surface of the straight rod, so that the stabilizing frame can rotate on the arc surface of the straight rod.

[0012] Preferably, one end of the straight rod penetrates through the upper surface of the fixing plate, and the other end of the straight rod is movably connected to the inner wall of the installation groove, so that the straight rod can rotate on the surface of the fixing plate.

[0013] Preferably, a plurality of grooves are provided, and the plurality of grooves are evenly formed on the arc surface of the threaded bar along the arc surface of the threaded bar. The arrangement of multiple groups of grooves can increase the contact area with the speed measurement sensor and has a better effect of providing lifting support for the surface of the speed measurement sensor in the vertical direction.

[0014] Preferably, two installation grooves are provided, and the two installation grooves are mirror-symmetrically arranged at both ends of the fixing plate. The two installation grooves facilitate the installation and limit the two ends of the speed measurement sensor.

[0015] Compared with the prior art, the present utility model provides a vehicle speed measurement device, which has the following beneficial effects:

[0016] 1. For this vehicle speed measurement device, by providing a stabilizing mechanism, when the motor starts to rotate the lead screw, the lead screw slider drives the fixing plate to clamp and fix the outer wall of the speed measurement sensor. At the same time, under the action of the torsion spring, the stabilizing frame adaptively rotates on the arc surface of the straight rod, and then the stabilizing frame fits the surface of the speed measurement sensor, ensuring the stability of the fixing of the uneven surface of the speed measurement sensor. Secondly, the threaded bar is provided on the cylinder and cooperates with a plurality of grooves, which has a better effect of providing lifting support for the surface of the speed measurement sensor in the vertical direction, thereby ensuring the stability of the speed measurement sensor when the vehicle is running.

[0017] 2. For this vehicle speed measurement device, by providing a promoting mechanism, the adjustable worm can be adjusted to drive the worm wheel to rotate, and then the straight rod rotates to adjust the deformation degree of the torsion spring, so that the stabilizing frame stably clamps the surface of the speed measurement sensor. By utilizing the self-locking characteristic of the worm and worm wheel, the stable adjustment of the straight rod is ensured, and thus the stable clamping of the speed measurement sensor is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of the present utility model;

[0019] Figure 2 It is a partial schematic diagram of the fixing plate structure of the present utility model;

[0020] Figure 3 This is a partial explosion schematic diagram of the structure stabilizer of the present utility model;

[0021] Figure 4 This is a partial cross-sectional schematic diagram of the structure installation box of the present utility model.

[0022] In the figure: 1, mounting base; 2, speed measurement sensor; 3, stabilizing mechanism; 301, mounting groove; 302, straight rod; 303, torsion spring; 304, stabilizer; 305, round rod; 306, cylinder; 307, threaded bar; 308, groove; 4, promoting mechanism; 401, installation box; 402, worm gear; 403, worm; 5, motor; 6, lead screw; 7, lead screw slider; 8, fixing plate. Specific implementation mode

[0023] As Figures 1 - 4 shown, the present utility model provides a technical solution: a vehicle speed measurement device, including a mounting base 1, a speed measurement sensor 2 is arranged above the mounting base 1, a motor 5 is fixedly installed on the side wall of the mounting base 1, a lead screw 6 is fixedly installed at the output end of the motor 5, a lead screw slider 7 is slidably connected to the arc surface of the lead screw 6, a fixing plate 8 is fixedly installed on the surface of the lead screw slider 7, a stabilizing mechanism 3 is arranged above the mounting base 1, a promoting mechanism 4 is arranged above the mounting base 1, and the stabilizing mechanism 3 includes a mounting groove 301, a straight rod 302, a torsion spring 303, a stabilizer 304, a round rod 305, a cylinder 306, a threaded bar 307, and a groove 308.

[0024] In an embodiment of the present utility model, the mounting groove 301 is opened on the side wall of the fixing plate 8, a straight rod 302 is movably connected inside the mounting groove 301, a torsion spring 303 is fixedly installed on the arc surface of the straight rod 302, one end of the torsion spring 303 far from the arc surface of the straight rod 302 is fixedly connected to the stabilizer 304, a round rod 305 is fixedly installed on the outer wall of the stabilizer 304, the cylinder 306 is movably connected to the arc surface of the round rod 305, a threaded bar 307 is fixedly installed on the surface of the cylinder 306, and a groove 308 is opened on the arc surface of the threaded bar 307.

[0025] In addition, the promoting mechanism 4 includes an installation box 401, the installation box 401 is fixedly installed on the upper surface of the fixing plate 8, a worm 403 is movably connected to the inner wall of the installation box 401, a worm gear 402 is fixedly installed on the arc surface of the end of the straight rod 302, one end of the worm 403 is movably connected to the inner wall of the installation box 401, and the other end of the worm 403 penetrates through the installation box 401, so that the worm 403 can be stably adjusted on the inner wall of the installation box 401.

[0026] In an embodiment of the present utility model, a rotation hole is provided on the surface of the stabilizer 304. The diameter of the rotation hole is adapted to the diameter of the straight rod 302. The stabilizer 304 is sleeved on the arc surface of the straight rod 302, enabling the stabilizer 304 to rotate on the arc surface of the straight rod 302. One end of the straight rod 302 penetrates the upper surface of the fixed plate 8, and the other end of the straight rod 302 is movably connected to the inner wall of the installation groove 301, thereby enabling the straight rod 302 to rotate on the surface of the fixed plate 8. The number of grooves 308 is set to be several. The several grooves 308 are evenly opened on the arc surface of the threaded bar 307 along the arc surface of the threaded bar 307. The setting of multiple groups of grooves 308 can increase the contact area with the speed measurement sensor 2 and has a better effect of providing support for the surface of the speed measurement sensor 2 in the vertical direction, thereby ensuring the stability of the speed measurement sensor 2. The number of installation grooves 301 is set to be two. The two installation grooves 301 are mirror-symmetrically distributed at both ends of the fixed plate 8. The two installation grooves 301 facilitate the installation and limit the two ends of the speed measurement sensor 2. A limit mechanism is provided on the surface of the motor 5, which has a locking effect on the adjusted lead screw 6, preventing the lead screw 6 from sliding due to an accident and affecting the fixed clamping of the speed measurement sensor 2 by the fixed plate 8. The number of fixed plates 8 is set to be two. The two fixed plates 8 are mirror-symmetrically arranged on the arc surface of the lead screw 6. The lead screw 6 is a bidirectional lead screw, which facilitates the centering of the fixed plate 8 to clamp the speed measurement sensor 2 in the center.

[0027] In the present utility model, during use, the speed measurement sensor 2 is placed on the upper surface of the mounting seat 1. The motor 5 is started to rotate the lead screw 6, so that the lead screw slider 7 drives the fixed plate 8 to clamp and fix the outer wall of the speed measurement sensor 2. At the same time, under the action of the torsion spring 303, the stabilizer 304 adaptively rotates on the arc surface of the straight rod 302. Then the stabilizer 304 fits the surface of the speed measurement sensor 2, ensuring the stability of the fixation of the uneven surface of the speed measurement sensor 2. Secondly, the threaded bar 307 provided on the cylinder 306 cooperates with several grooves 308, which has a better effect of providing support for the surface of the speed measurement sensor 2 in the vertical direction, thereby ensuring the stability of the speed measurement sensor 2 during vehicle driving.

[0028] Furthermore, the adjustable worm 403 can be adjusted, which drives the worm wheel 402 to rotate, and then the straight rod 302 rotates to adjust the deformation degree of the torsion spring 303. Then the stabilizer 304 stably clamps the surface of the speed measurement sensor 2. By utilizing the self-locking characteristic of the worm wheel 402 and the worm 403, the stable adjustment of the straight rod 302 is ensured, the stable clamping of the speed measurement sensor 2 is ensured, and the stability of the speed measurement sensor 2 during vehicle driving is ensured.

[0029] The above has generally described the present utility model in detail. However, based on the present utility model, some modifications or improvements can be made thereto, which are obvious to those of ordinary skill in the art. Therefore, modifications or improvements made without departing from the spirit and idea of the present utility model are all within the protection scope of the present utility model.

Claims

1. A vehicle speed measuring device, comprising a mounting seat (1), a speed measuring sensor (2) being arranged above the mounting seat (1), a motor (5) being fixedly mounted on a side wall of the mounting seat (1), a screw rod (6) being fixedly mounted on an output end of the motor (5), a screw rod slider (7) being slidably connected to an arc surface of the screw rod (6), and a fixing plate (8) being fixedly mounted on a surface of the screw rod slider (7), characterized in that: A stabilizing mechanism (3) is arranged above the mounting seat (1), and a promoting mechanism (4) is arranged above the mounting seat (1), wherein the stabilizing mechanism (3) comprises: A mounting groove (301), the mounting groove (301) being provided on a side wall of the fixing plate (8), a straight rod (302) being movably connected inside the mounting groove (301), a torsion spring (303) being fixedly mounted on the arc surface of the straight rod (302), an end of the torsion spring (303) away from the arc surface of the straight rod (302) being fixedly connected to a stabilizing frame (304), and a round rod (305) being fixedly mounted on the outer wall of the stabilizing frame (304); A cylinder (306) is movably connected to the arc surface of the round rod (305); a threaded strip (307) is fixedly mounted on the surface of the cylinder (306); and a groove (308) is provided on the arc surface of the threaded strip (307).

2. A vehicle speed measuring device according to claim 1, characterized in that: The promotion mechanism (4) comprises a mounting box (401), the mounting box (401) being fixedly mounted on the upper surface of the fixing plate (8), the inner wall of the mounting box (401) being movably connected to a worm (403), and the end arc surface of the straight rod (302) being fixedly mounted with a worm wheel (402).

3. A vehicle speed measuring device according to claim 2, characterized in that: One end of the worm (403) is movably connected to the inner wall of the installation box (401), and the other end of the worm (403) passes through the installation box (401).

4. A vehicle speed measuring device according to claim 1, characterized in that: A rotation hole is provided on the surface of the stabilizing frame (304), the diameter of the rotation hole matches the diameter of the straight rod (302), and the stabilizing frame (304) is sleeved on the arc surface of the straight rod (302).

5. A vehicle speed measuring device according to claim 1, characterized in that: One end of the straight rod (302) passes through the upper surface of the fixing plate (8), and the other end of the straight rod (302) is movably connected to the inner wall of the mounting groove (301).

6. A vehicle speed measuring device according to claim 1, characterized in that: The number of the grooves (308) is set to be a plurality, and the plurality of grooves (308) are evenly opened on the arc surface of the thread strip (307) along the arc surface of the thread strip (307).

7. A vehicle speed measuring device according to claim 1, characterized in that: The number of the mounting grooves (301) is two, and the two mounting grooves (301) are arranged at two ends of the fixing plate (8) in a mirror-image distribution.

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