Detecting tool for tachymeter

Abstract

The utility model relates to the technical field of tachymeter detection, in particular to a tachymeter detection tool, which comprises a track seat transversely fixed on a roadside vertical frame, a plurality of groups of sliding blocks are arranged on the track seat in a sliding manner, and the plurality of groups of sliding blocks are connected through a scissor fork mechanism, so that the plurality of groups of sliding blocks can be adjusted at equal intervals on the track seat. Each group of sliding blocks is provided with a group of connecting shafts, each connecting shaft is fixedly provided with a mounting groove seat, the mounting groove seat is provided with a clamping groove in which a handle part of the tachymeter is inserted, the mounting groove seat is provided with a fixing assembly extending into the clamping groove, and the handle part of the tachymeter can be fixed through intermittent connection among the plurality of groups of fixing assemblies. And the speedometer can be quickly mounted and dismounted.

Description

Technical Field

[0001] The utility model relates to the technical field of speedometer detection, in particular to a speedometer detection tool. Background Technique

[0002] Speedometer detection is used to ensure that the device accurately and reliably evaluates the speed. During detection, the laser speedometer is fixed on a stable bracket and its alignment with the test lane is ensured. The height and angle of the device are adjusted so that it can accurately measure the speed of passing vehicles.

[0003] For example, the publication (announcement) number: CN220709344U, a speedometer verification device, although it can simultaneously fix multiple groups of speedometers, each group of speedometers needs to be independently operated and fixed. The more test positions there are, the more time-consuming the installation and disassembly process is. This solution provides a speedometer detection tool to achieve synchronous installation and fixation of multiple groups of speedometers. Content of the Utility Model

[0004] The utility model aims to at least solve the problem that each group of speedometers in the prior art needs to be independently installed and disassembled.

[0005] This solution provides a speedometer detection tool, which is achieved by the following specific technical means: including a track seat horizontally fixed on a roadside stand, multiple groups of sliders sliding on the track seat, and multiple groups of sliders are connected by a scissor mechanism. Each group of sliders is provided with a group of connecting shafts, and an installation groove seat is fixed on the connecting shafts. A card slot for inserting the handle part of the speedometer is opened on the installation groove seat. At the same time, a fixing component extending into the card slot is arranged on the installation groove seat. When the end of the fixing component extends into the card slot, it presses and fixes the handle part of the speedometer. Adjacent two groups of the fixing components are intermittently connected. When connected, by operating one group of the fixing components, the technical effect of simultaneously controlling multiple groups of the fixing components to extend into or away from the card slot can be achieved.

[0006] Preferred Technical Solution 1: The fixing component includes an internally threaded cylinder rotatably installed on the rear wall of the installation groove seat. A threaded rod is engaged in the internally threaded cylinder. The front end of the threaded rod extends out of a hole opened on the rear wall of the installation groove seat and then extends into the card slot through an extrusion part fixed at the front end. A gear is fixedly sleeved on the internally threaded cylinder. When the sliders approach each other, adjacent two groups of gears are in a meshing state, achieving the technical effect that when one internally threaded cylinder rotates, multiple groups of internally threaded cylinders will rotate synchronously.

[0007] Preferred Technical Solution 2: The connecting shaft is rotatably and penetratingly connected with the slider. At the same time, an angle adjustment mechanism is arranged on the track seat. The angle adjustment mechanism is connected with multiple groups of connecting shafts at the same time and is used to control the rotation angles of multiple groups of connecting shafts.

[0008] Optimal Technical Solution Three: A first crank is fixed to the bottom end of the connecting shaft. At the same time, a first convex shaft is fixed to the end of the first crank. At the same time, second convex shafts are rotatably installed at both ends of the track seat. A second crank is fixed to the second convex shaft. Both ends of the movable track between the two second cranks are respectively hinged to the ends of the two second cranks. At the same time, extension handles that form an acute angle with the second cranks are fixed to both of the second convex shafts. A linkage rod is hinged between the two extension handles. The linkage rod, the movable track and the two second cranks form a parallelogram structure.

[0009] Optimal Technical Solution Four: The scissor mechanism is composed of multiple groups of scissor rod groups arranged in sequence on the connecting shaft. At the same time, a driving rod group is arranged at one end of the track seat. The driving rod group is connected to the adjacent group of scissor rod groups to control the synchronous expansion and contraction of the multiple groups of scissor rod groups.

[0010] Optimal Technical Solution Five: Each scissor rod group includes a first rod and a second rod. The middle parts of the first rod and the second rod are rotatably sleeved on the connecting shaft. At the same time, both ends of the first rod in one group of scissor rod groups are hinged to the ends of the second rods in the adjacent two groups of scissor rod groups. Both ends of the second rod in one group of scissor rod groups are hinged to the ends of the first rods in the adjacent two groups of scissor rod groups. The driving rod group includes a third convex shaft fixed to the end of the track seat, a driving rod rotatably connected to the third convex shaft, and a driven rod. The end of the driving rod and the end of the second driven rod are respectively hinged to the ends of the first rod and the second rod in the adjacent group of scissor rod groups.

[0011] Adopting the above structure makes the present solution have the following beneficial effects:

[0012] 1. By using the scissor mechanism, when installing and disassembling the speedometer, the installation groove seats for installing multiple speedometers can be brought closer to each other, realizing the linkage between multiple fixing components, so as to synchronously and quickly control multiple fixing components.

[0013] 2. By using the angle adjustment mechanism, the angles of multiple connecting shafts can be adjusted after the connecting shafts move away from each other, so as to control the observation angles of multiple speedometers to adapt to the oncoming vehicle direction. Description of the Drawings

[0014] The drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention, and do not constitute a limitation to the present invention. In the drawings:

[0015] Figure 1 is the overall structural schematic diagram of the present solution;

[0016] Figure 2 is the top view of the present solution;

[0017] Figure 3 is the structural schematic diagram of the installation groove seat of the present solution;

[0018] Figure 4 It is a structural schematic diagram of the scissor mechanism of this solution;

[0019] Figure 5 It is a structural schematic diagram of the angle adjustment mechanism of this solution.

[0020] Among them, 1. Rail seat, 2. Slide block, 3. Scissor mechanism, 31. Scissor rod group, 311. Rod one, 312. Rod two, 4. Connecting shaft, 5. Installation groove seat, 51. Card slot, 6. Fixing component, 61. Internal thread cylinder, 62. Extrusion piece, 63. Gear, 7. Angle adjustment mechanism, 71. Crank one, 72. Convex shaft one, 73. Crank two, 74. Convex shaft two, 75. Movable rail, 76. Extension handle, 77. Linking rod, 8. Driving rod group, 81. Driving rod, 82. Driven rod, 83. Convex shaft three, 84. Extension arm, 85. Convex handle. Specific implementation manner

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1 - 3 , a speedometer detection tool, including a rail seat 1 horizontally fixed on a roadside stand, a plurality of groups of slide blocks 2 sliding in a damping manner on the rail seat 1, and the plurality of groups of slide blocks 2 are connected by a scissor mechanism 3 to realize the equal-spacing adjustment of the plurality of groups of slide blocks 2 on the rail seat 1. A connecting shaft 4 is arranged on each group of slide blocks 2, an installation groove seat 5 is fixed on the connecting shaft 4, a card slot 51 for inserting the handle part of the speedometer is opened on the installation groove seat 5, and at the same time, a fixing component 6 extending into the card slot 51 is arranged on the installation groove seat 5. When the end of the fixing component 6 extends into the card slot 51, the handle part of the speedometer is pressed and fixed. Adjacent two groups of fixing components 6 are intermittently connected, and linkage control is realized when the fixing components 6 are connected, that is, by operating one group of fixing components 6, the technical effect of simultaneously controlling the plurality of groups of fixing components 6 to extend into or away from the card slot 51 can be achieved;

[0023] The fixing component 6 includes an internally threaded cylinder 61 rotatably mounted on the rear wall of the mounting groove base 5. A threaded rod is engaged in the internally threaded cylinder 61. The front end of the threaded rod extends through a hole formed in the rear wall of the mounting groove base 5 and then extends into the clamping groove 51 through an extrusion member 62 fixed at the front end. By screwing the threaded rod, the threaded rod is pushed out to drive the extrusion member 62 to contact the handle part of the speedometer. A gear 63 is fixedly sleeved on the internally threaded cylinder 61. When the sliders 2 approach each other, two adjacent groups of gears 63 are in an engaged state, achieving the technical effect that when one group of internally threaded cylinders 61 rotates, multiple groups of internally threaded cylinders 61 will rotate synchronously, enabling the synchronous and rapid fixing of multiple speedometers. After installation, by extending the scissor mechanism 3, the distance between multiple groups of sliders 2 is increased, thereby controlling the multiple speedometers to move away from each other to avoid mutual interference during operation.

[0024] Please refer to Figures 2 - 3 and Figure 5 , a speedometer detection tool. The connecting shaft 4 is rotatably and damping-connected to the slider 2 through and through. At the same time, an angle adjustment mechanism 7 is provided on the track base 1. The angle adjustment mechanism 7 is connected to multiple groups of connecting shafts 4 at the same time, and is used to control the rotation angles of multiple groups of connecting shafts 4, so as to change the observation angles of multiple speedometers after moving away from each other. A crank one 71 is fixed at the bottom end of the connecting shaft 4. At the same time, a convex shaft one 72 is fixed at the end of the crank one 71. At the same time, convex shafts two 74 are rotatably mounted at both ends of the track base 1. A crank two 73 is fixed on the convex shaft two 74. The two ends of the movable rail 75 located between the two crank two 73 are respectively hinged to the ends of the two crank two 73. At the same time, extension handles 76 forming an acute angle with the crank two 73 are fixed on both convex shafts two 74. A linkage rod 77 is hinged between the two extension handles 76. The linkage rod 77, the movable rail 75 and the two crank two 73 enclose a parallelogram structure. The linkage rod 77 is provided to link the two extension handles 76 to control the rotation postures of the two convex shafts two 74. When the convex shaft two 74 rotates, the movable rail 75 will be driven to swing by the crank two 73. Since the convex shaft one 72 is slidably connected to the movable rail 75 transversely, when the movable rail 75 swings, the crank one 71 will be driven to swing by the convex shaft one 72, achieving the technical effect of driving the rotation of multiple connecting shafts 4 after moving away from each other, so that the sight lines of multiple speedometers are directed towards the oncoming vehicle.

[0025] Please refer to Figures 3 - 4, a speedometer detection tool, the scissor mechanism 3 is composed of a plurality of groups of scissor rod groups 31 sequentially connected to a connecting shaft 4. At the same time, a driving rod group 8 is arranged at one end of the track base 1. The driving rod 81 group is connected to a nearby group of scissor rod groups 31 to control the synchronous expansion and contraction of the plurality of groups of scissor rod groups 31. The scissor rod group 31 includes a rod one 311 and a rod two 312. The middle parts of the rod one 311 and the rod two 312 are rotatably sleeved on the connecting shaft 4. At the same time, the two ends of the rod one 311 in a group of scissor rod groups 31 are hinged to the ends of the rod two 312 in adjacent two groups of scissor rod groups 31. The two ends of the rod two 312 in a group of scissor rod groups 31 are hinged to the ends of the rod one 311 in adjacent two groups of scissor rod groups 31. The driving rod group 8 includes a convex shaft three 83 fixed at the end of the track base 1, a driving rod 81 and a driven rod 82 rotatably connected to the convex shaft three 83. The end of the driving rod 81 and the end of the driven rod 82 are respectively hinged to the ends of the rod one 311 and the rod two 312 in an adjacent group of scissor rod groups 31. A convex handle 85 is fixed on the extended arm 84 fixed on the driving rod 81. By operating the driving rod 81 group through the convex handle 85, the expansion and contraction of the scissor mechanism 3 can be linked;

[0026] At the same time, a set of mounting groove seats 5 are also fixedly installed on the convex shaft three 83 to increase the number of mounting groove seats 5. Before loading and unloading the speedometer, first rotate the control connecting shaft 4 by manipulating the extension handle 76 until the mounting groove seat 5 is perpendicular to the track base 1, so that the plurality of groups of gears 63 are in the same plane. At this time, the mounting groove seat 5 on the convex shaft three 83 is parallel to the side end of the track base 1. When the convex handle 85 is pulled to drive the scissor mechanism 3 to fold, the plurality of sliders 2 approach each other. At this time, the plurality of groups of gears 63 in the same plane mesh with each other. At this time, the plurality of fixing components 6 can be controlled simultaneously to fix or disassemble the speedometer.

[0027] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A speed meter detection tool, comprising a track seat (1) transversely fixed on a roadside stand, characterized in that: A plurality of groups of sliders (2) are slidably mounted on the track seat (1). The plurality of groups of sliders (2) are connected to each other via a scissor mechanism (3). Each group of sliders (2) is provided with a group of connecting shafts (4). A mounting slot seat (5) is fixed to the connecting shaft (4). The mounting slot seat (5) is provided with a slot (51) for inserting a handle of the speed meter. The mounting slot seat (5) is provided with a fixing assembly (6) extending into the slot (51). When the end of the fixing assembly (6) is inserted into the slot (51), the handle of the speed meter is pressed and fixed. Two adjacent groups of fixing assemblies (6) are intermittently connected.

2. A speed meter detection tool according to claim 1, characterized in that: The fixing assembly (6) comprises an internally threaded barrel (61) rotatably mounted on the rear wall of the mounting groove seat (5), a threaded rod being meshed in the internally threaded barrel (61), the front end of the threaded rod extending from a hole provided on the rear wall of the mounting groove seat (5) and then extending into the clamping groove (51) through an extrusion piece (62) fixed at the front end, and a gear (63) being fixedly sleeved on the internally threaded barrel (61).

3. A speed meter detection tool according to claim 1, characterized in that: The connecting shaft (4) is rotatably connected to the slider (2), and an angle adjustment mechanism (7) is provided on the track seat (1). The angle adjustment mechanism (7) is simultaneously connected to multiple groups of connecting shafts (4) and is used to control the rotation angles of the multiple groups of connecting shafts (4).

4. A speed meter detection tool according to claim 3, characterized in that: A crank 1 (71) is fixed at the bottom end of the connecting shaft (4), and a convex shaft 1 (72) is fixed at the end of the crank 1 (71). Convex shafts 2 (74) are rotatably mounted at both ends of the track seat (1), and cranks 2 (73) are fixed on the convex shafts 2 (74). Both ends of a movable rail (75) located between the two groups of cranks 2 (73) are hinged to the ends of the two groups of cranks 2 (73) respectively. Extension handles (76) that form an acute angle with the cranks 2 (73) are fixed on the two groups of convex shafts 2 (74), and a linkage rod (77) is hingedly connected between the two groups of extension handles (76).

5. A speed meter detection tool according to claim 1, characterized in that: The scissor mechanism (3) is composed of a plurality of scissor rod groups (31) arranged on a connecting shaft (4) connected in sequence, and a driving rod group (8) is arranged at one end of the track seat (1), and the driving rod group (8) is connected to a group of scissor rod groups (31) adjacent to the track seat, and is used to control the synchronous extension and retraction of the plurality of scissor rod groups (31).

6. A speed meter detection tool according to claim 1, characterized in that: The sliding block (2) and the track seat (1) are connected in a damping sliding manner.

7. A speed meter detection tool according to claim 3, characterized in that: The connecting shaft (4) and the slider (2) are also connected in a damping rotational manner.

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