A drop-proof traffic sign retroreflection measuring instrument

Abstract

The utility model discloses a drop-proof traffic sign retroreflection measuring instrument, which relates to the field of traffic sign retroreflection measuring instruments, and includes a measuring instrument body, a telescopic rod is installed on the surface of the measuring instrument body, a support tube is sleeved on the outside of the telescopic rod, at least three support rods are installed on the surface of the support tube, and the three support rods are arranged in a circular array on the surface of the support tube. The drop-proof traffic sign retroreflection measuring instrument described in the utility model, by setting a first gear, a second gear and a tooth groove, ensures that the telescopic rod is located inside the support tube when it needs to be handheld, and ensures that the telescopic rod is located inside the support tube when it needs to be handheld, and pulls the telescopic rod out of the support tube, the tooth groove will cause the second gear to rotate, and due to the meshing of the second gear with the first gear, the support rod can be rotated and opened by the rotating rod, so that the use of the measuring instrument body can be stably guaranteed, thereby improving the scope of application of the measuring instrument body.

Description

Technical Field

[0001] The utility model relates to the field of traffic sign retroreflection measuring instruments, in particular to a fall-proof traffic sign retroreflection measuring instrument. Background Art

[0002] The road sign retroreflectometer is an instrument for measuring road signs made of all types of retroreflective materials. The retroreflection coefficient is obtained through a certain physical structure, sensor collection and data calculation. The user can determine whether the microprismatic sign reflective film material is correctly pasted. The configured telescopic aperture can measure small text and symbols on road signs. It has the advantages of stable performance, high measurement accuracy, compact structure, sturdy and beautiful appearance, small size and light weight.

[0003] A Chinese patent with patent number CN 202121526333.X discloses a drop-proof and shake-proof traffic sign retroreflection coefficient measurement. By setting a support column and a base, it can ensure that the measuring instrument can be placed directly on the ground for use to avoid shaking when held in hand. However, the device can only be placed on the ground for use, which is inconvenient to use for special occasions that require hand-holding. Utility Model Content

[0004] The main purpose of the utility model is to provide a drop-proof traffic sign retroreflection measuring instrument, which can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a fall-proof traffic sign retroreflection measuring instrument, including a measuring instrument body, a telescopic rod is installed on the surface of the measuring instrument body, a support tube is sleeved on the outside of the telescopic rod, at least three support rods are installed on the surface of the support tube, the three support rods are arranged in a circular array on the surface of the support tube, and a drive assembly is installed on the surface of the support rod for rotating the support rod to open it.

[0006] The driving assembly includes a first gear, a rotating rod is installed on the surface of the support rod, the first gear is fixedly sleeved on the surface of the rotating rod, a second gear is movably installed on the inside of the support tube on the rotating shaft, the first gear is meshed with the second gear, a plurality of longitudinally arranged tooth grooves are opened on the surface of the telescopic rod, and the teeth of the second gear are stuck in the inside of the tooth grooves.

[0007] A threaded rod is movably mounted on the end of the telescopic rod, the diameter of the threaded rod is larger than the diameter of the telescopic rod, a threaded groove is provided inside the support tube, and the threaded rod is clamped inside the threaded groove.

[0008] The end of the telescopic rod is inlaid with a fixed bearing, the bottom of the threaded rod is fixedly installed with a connecting rod, and the connecting rod is fixedly installed inside the fixed bearing.

[0009] The connecting rod and the threaded rod are an integrally formed structure.

[0010] The support rod is configured to be arc-shaped, and the first gear is located in the middle of the support rod.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] In the utility model, by providing the first gear, the second gear and the tooth groove, when it is needed to be used by hand, the telescopic rod is ensured to be located inside the support tube; when it is needed to be used by hand, the telescopic rod is ensured to be located inside the support tube; when the telescopic rod is pulled out from the inside of the support tube, the tooth groove will cause the second gear to rotate; due to the meshing of the second gear and the first gear, the support rod can be rotated and opened by the rotating rod, so that the use of the measuring instrument body can be stably guaranteed, thereby improving the application range of the measuring instrument body.

[0013] In the utility model, by providing a threaded rod and a threaded groove, when the threaded rod is rotated, the threaded rod can move axially inside the support tube and unlock at the same time. Since the telescopic rod is connected to the threaded rod, the telescopic rod can also extend the axial direction of the support tube to move, and the tooth groove will cause the second gear to rotate. Since the second gear is meshed with the first gear, the support rod can be rotated and opened by the rotating rod, and will not move downward due to its own gravity. The structure is very simple and easy to operate when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a drop-proof traffic sign retroreflection measuring instrument of the utility model;

[0015] Figure 2 It is a schematic diagram of the structure of the threaded rod position of a drop-proof traffic sign retroreflection measuring instrument of the utility model;

[0016] Figure 3 It is a schematic diagram of the structure of the thread groove position of a drop-proof traffic sign retroreflection measuring instrument of the utility model;

[0017] Figure 4 The utility model is a schematic diagram of the structure of the first gear position of a drop-proof traffic sign retroreflection measuring instrument.

[0018] In the figure: 1. measuring instrument body; 2. telescopic rod; 3. support tube; 4. support rod; 5. first gear; 6. rotating rod; 7. second gear; 8. tooth groove; 9. threaded rod; 10. threaded groove; 11. fixed bearing; 12. connecting rod. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] like Figure 1-4 As shown, a fall-proof traffic sign retroreflection measuring instrument comprises a measuring instrument body 1, which can detect retroreflection data, a telescopic rod 2 is installed on the surface of the measuring instrument body 1, the measuring instrument body 1 is arranged at the end of the telescopic rod 2, a support tube 3 is sleeved on the outside of the telescopic rod 2, the telescopic rod 2 can move inside the support tube 3, at least three support rods 4 are installed on the surface of the support tube 3, the support rod 4 can rotate, the three support rods 4 are arranged in a circular array on the surface of the support tube 3, a driving assembly is installed on the surface of the support rod 4, which is used to rotate and open the support rod 4, and the lower end position of the support rod 4 is lower than the lower end position of the support tube 3.

[0021] When it needs to be used handheld, ensure that the telescopic rod 2 is located inside the support tube 3. At this time, the driving component is in a closed state and the support rod 4 is not opened. When it needs to be used standing, pull the telescopic rod 2 out from the inside of the support tube 3 and start the driving component at the same time, so that the support rod 4 rotates and opens, which can stably ensure the use of the measuring instrument body 1, thereby improving the applicability of the measuring instrument body 1.

[0022] The driving assembly includes a first gear 5, a rotating rod 6 is installed on the surface of the support rod 4, and the rotating rod 6 is movably installed on the inner wall of the support tube 3. The first gear 5 is fixedly sleeved on the surface of the rotating rod 6, and the first gear 5 drives the rotating rod 6 to rotate. The interior of the support tube 3 is movably installed with a second gear 7 on a rotating shaft, and the first gear 5 is meshed with the second gear 7. The surface of the telescopic rod 2 is provided with a plurality of longitudinally arranged tooth grooves 8, and the teeth of the second gear 7 are stuck in the interior of the tooth grooves 8.

[0023] When the telescopic rod 2 is pulled to move, the tooth groove 8 causes the second gear 7 to rotate. Due to the meshing of the second gear 7 with the first gear 5, the support rod 4 can be rotated and opened through the rotating rod 6, which simplifies the operation and reduces the cost.

[0024] A threaded rod 9 is movably installed at the end of the telescopic rod 2. The diameter of the threaded rod 9 is larger than the diameter of the telescopic rod 2. A threaded groove 10 is opened inside the support tube 3. At this time, it can be ensured that the telescopic rod 2 can pass through the part of the threaded groove 10. The threaded rod 9 is stuck inside the threaded groove 10. When the threaded rod 9 is rotated, the threaded rod 9 can move axially inside the support tube 3 and unlock at the same time. Since the telescopic rod 2 is connected to the threaded rod 9, the telescopic rod 2 can also extend the axial direction of the support tube 3 to move, and will not move downward due to its own gravity. The structure is very simple and easy to operate when used.

[0025] A fixed bearing 11 is embedded at the end of the telescopic rod 2, and a connecting rod 12 is fixedly installed at the bottom of the threaded rod 9. The connecting rod 12 is fixedly installed inside the fixed bearing 11 to ensure the stability of the connection between the threaded rod 9 and the telescopic rod 2.

[0026] The connecting rod 12 and the threaded rod 9 are an integrally formed structure.

[0027] The support rod 4 is configured to be arc-shaped, and the first gear 5 is located in the middle of the support rod 4, so that the support rod 4 is evenly stressed.

[0028] It should be noted that the utility model is a fall-proof traffic sign retroreflection measuring instrument. During use, when it needs to be used handheld, ensure that the telescopic rod 2 is located inside the support tube 3 and the support rod 4 is not opened. When it needs to be used standing, when the threaded rod 9 is rotated, the threaded rod 9 can move axially inside the support tube 3 and unlock at the same time. Since the telescopic rod 2 is connected to the threaded rod 9, the telescopic rod 2 can also extend the axial direction of the support tube 3 to move, and the tooth groove 8 will cause the second gear 7 to rotate. Due to the meshing of the second gear 7 with the first gear 5, the support rod 4 can be rotated and opened through the rotating rod 6, and will not rotate to the initial position due to the gravity of the telescopic rod 2, so the use of the measuring instrument body 1 can be stably guaranteed, thereby improving the scope of application of the measuring instrument body 1.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A drop-proof traffic sign retroreflection measuring instrument, comprising a measuring instrument body (1), characterized in that: A telescopic rod (2) is mounted on the surface of the measuring instrument body (1); a support tube (3) is sleeved on the outside of the telescopic rod (2); at least three support rods (4) are mounted on the surface of the support tube (3); the three support rods (4) are arranged in a circular array on the surface of the support tube (3); and a drive assembly is mounted on the surface of the support rod (4) for rotating the support rod (4) to open.

2. The anti-fall traffic sign retroreflection measuring instrument according to claim 1, characterized in that: The driving assembly comprises a first gear (5), a rotating rod (6) is mounted on the surface of the support rod (4), the first gear (5) is fixedly sleeved on the surface of the rotating rod (6), a second gear (7) is movably mounted on the inside of the support tube (3), the first gear (5) meshes with the second gear (7), a plurality of longitudinally arranged tooth grooves (8) are formed on the surface of the telescopic rod (2), and the teeth of the second gear (7) are inserted into the inside of the tooth grooves (8).

3. The anti-fall traffic sign retroreflection measuring instrument according to claim 2, characterized in that: A threaded rod (9) is movably mounted at the end of the telescopic rod (2); the diameter of the threaded rod (9) is larger than the diameter of the telescopic rod (2); a threaded groove (10) is provided inside the support tube (3), and the threaded rod (9) is clamped inside the threaded groove (10).

4. The anti-fall traffic sign retroreflection measuring instrument according to claim 3, characterized in that: A fixed bearing (11) is embedded at the end of the telescopic rod (2), a connecting rod (12) is fixedly mounted at the bottom of the threaded rod (9), and the connecting rod (12) is fixedly mounted inside the fixed bearing (11).

5. The anti-fall traffic sign retroreflection measuring instrument according to claim 4, characterized in that: The connecting rod (12) and the threaded rod (9) are an integrally formed structure.

6. The anti-fall traffic sign retroreflection measuring instrument according to claim 2, characterized in that: The support rod (4) is arranged in an arc shape, and the first gear (5) is located in the middle of the support rod (4).

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