A simplified retroreflective detection structure
By introducing an anti-drop device into a simple retroreflective detector, which uses a rope and loop to bind it to the wrist, the problem of slipping off when held is solved, improving safety and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG HEZE ZHONGTONG ENGINEERING CO LTD
- Filing Date
- 2025-08-22
- Publication Date
- 2026-07-31
AI Technical Summary
Existing simple retroreflective testing instruments are prone to slipping and falling when handheld, causing collision damage and affecting safety.
A simple retroreflective detection structure was designed, including a body, an illumination head, a grip, a display screen, and an anti-drop device. The anti-drop device is tied to the wrist with a rope, a loop, and a coil to prevent the body from falling, and the rope is stored away when not in use to reduce hand slippage.
It effectively prevents the device from detaching and falling when held in the hand, improving safety and extending the lifespan of the strap and the stability of manual operation.
Smart Images
Figure CN224581398U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of retroreflection detection equipment technology, and in particular to a simplified retroreflection detection structure. Background Technology
[0002] Retroreflection refers to the phenomenon where light rays, after hitting the surface of an object, return in the opposite direction to the incident light rays. A retroreflection detector is a portable testing device used to quickly measure the retroreflection performance of facilities such as road markings and traffic signs. Its core function is to measure the intensity of reflected light from such markings and signs by simulating vehicle headlight illumination and the driver's visual angle, thereby assessing their nighttime visibility and providing data support for road traffic safety.
[0003] The existing simple retroreflection detector uses a built-in light source to simulate a car headlight, illuminating the object at a specific angle. At the same time, it receives the reflected light at an angle that simulates the driver's line of sight. The light signal is then converted into an electrical signal by a silicon diode sensor of model STT-101, which calculates the retroreflection coefficient and displays it on the screen, thus achieving retroreflection detection of the object.
[0004] However, when personnel hold the handle to move the machine for testing, their hands may slip, causing the machine to detach from their hands and fall to the ground, resulting in impact damage and affecting the safety of the machine's use. Utility Model Content
[0005] The technical problem this utility model aims to solve is that when personnel are holding the device for testing, their hands may slip, causing the device to detach from their hands and fall to the ground, resulting in impact damage and affecting the safety of the device.
[0006] The technical solution adopted by this utility model to solve its technical problem is: a simple retroreflective detection structure, comprising: a body, wherein an illumination head is provided on one side of the body, the illumination head is used to simulate the illumination of an object by a car headlight, and a handle is provided on one side of the body; a display screen is provided on the side of the body away from the illumination head, wherein the display screen is used to display detection data; and an anti-drop device is provided on the handle, wherein the anti-drop device is used to bind the handle to the wrist of a person, and to drag the body when it falls, thereby ensuring the safety of the body.
[0007] Preferably, the anti-fall device includes: a base, which is fixedly connected to the handle, wherein a shaft is rotatably connected to the inner wall of the hole of the base via a bearing, wherein the cross-section of the shaft is T-shaped; a spool, which is fixedly connected to the shaft, wherein the spool is placed inside the base and rotates; and a binding rope, one end of which is fixedly connected to the spool, wherein the spool can be used to wind the binding rope, wherein a collar is fixedly connected to the end of the binding rope away from the spool, wherein the collar is fitted onto the binding rope.
[0008] The aforementioned components achieve the following effects: By incorporating an anti-fall device, the loop is manually moved to slide along the surface of the binding rope, causing the loop to pull the binding rope away from the spool and form a circle with the rope itself. The circled portion of the binding rope is then placed on the wrist, and the loop is moved to a position close to the wrist, securing the rope to the user's wrist. If the machine slips from the hand and falls, the binding rope, along with the loop, spool, and base, assists in dragging the machine and tightens the rope under stress, preventing it from slipping from the hand. This effectively prevents the machine from falling. Simultaneously, when the machine is idle, the shaft is manually rotated to rotate the spool, causing it to wind up the binding rope during rotation, reducing the exposed length of the rope and thus storing it. This reduces the risk of the user slipping while holding the handle and moving the machine for testing, preventing the machine from slipping from their hand and falling to the ground, causing impact damage and improving the machine's safety.
[0009] Preferably, a metal ring is fixedly connected at the contact position between the base and the binding rope, wherein the metal ring is sleeved on the binding rope and the surface of the metal ring is smooth.
[0010] The effect achieved by the above components is that by setting a metal ring, the base can be replaced to contact the surface of the binding rope, and the smoothness of its own surface can be used to reduce the friction and wear generated with the binding rope, thereby improving the service life of the binding rope.
[0011] Preferably, an intercepting ring is fixed to one side of the binding rope, wherein the intercepting ring is placed inside the base, and a rubber ring is fixed to the side of the intercepting ring away from the spool, wherein the intercepting ring is smaller than the inner wall of the spool and larger than the inner wall of the metal ring.
[0012] The effect achieved by the above components is as follows: by setting up an intercepting ring, when the binding rope moves, the intercepting ring can contact the surface of the metal ring when the binding rope moves to the maximum pull-out position, and prevent the binding rope from continuing to move out of the base. This reduces the situation where the connection between the binding rope and the reel is subjected to excessive force and separation, which affects the stability of the machine body.
[0013] Preferably, a sponge pad is fixed to the side of the base near the handle.
[0014] The effect achieved by the above components is that by setting up a sponge pad, the sponge pad can separate the hand from the base surface, reducing the wear and tear on the skin of the hand after prolonged contact with the base surface when holding the handle.
[0015] Preferably, a plurality of anti-slip strips are fixedly attached to the surface of the shaft, and the plurality of anti-slip strips are arranged at equal intervals.
[0016] The effect achieved by the above components is as follows: by setting anti-slip strips, the friction between the hand and the shaft surface can be increased, reducing the possibility of slippage when manually rotating the shaft and improving the stability of manually rotating the shaft.
[0017] Preferably, two rubber blocks are symmetrically fixed to the inner wall of the groove on the side of the base near the contact position with the binding rope.
[0018] The effect achieved by the above components is as follows: by setting rubber blocks, when the rope is retracted into the base, the collar moves into the groove of the base, and then the rubber blocks on both sides intercept and limit the collar, preventing the collar from shaking, reducing the possibility of the rope slipping out of the base due to the shaking of the collar, and further improving the stability of storing the rope.
[0019] Preferably, two magnet plates are symmetrically fixed to the side of the base away from the handle.
[0020] The effect achieved by the above components is as follows: by setting up a magnetic plate, personnel can place the machine body on a table via the base. At the same time, the magnetic plate is used to attract some magnetically adsorbable metal tabletops to reinforce the base, assisting personnel in reinforcing the machine body and improving the placement stability of the machine body.
[0021] The beneficial effects of this utility model are: By installing an anti-fall device, the machine can be assisted in dragging if it falls accidentally, preventing it from colliding with the ground. This reduces the chance of the machine slipping from the hand when the operator is holding the handle and pulling the machine for inspection, thus preventing it from falling to the ground and being damaged by impact. This improves the safety of using the machine. Attached Figure Description
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0023] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This utility model Figure 1 Another perspective view; Figure 3 This is a partial sectional view of the base of this utility model; Figure 4 This is a cross-sectional view of the base of this utility model from another position; Figure 5 This is a three-dimensional structural diagram of the magnet plate of this utility model; Figure 6 This is a partial cross-sectional view of the spool of this utility model.
[0024] Legend: 1. Body; 2. Irradiation head; 3. Handle; 4. Display screen; 5. Anti-fall device; 51. Base; 52. Shaft; 53. Anti-slip strip; 54. Cable reel; 55. Tie rope; 56. Loop; 57. Magnetic plate; 58. Rubber block; 59. Metal ring; 510. Interception ring; 511. Sponge pad. Detailed Implementation
[0025] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.
[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0027] Figure 1-6 The simplified retroreflective detection structure shown includes: a body 1, an illumination head 2 on one side of the body 1, wherein the illumination head 2 is used to simulate the headlights of a car illuminating an object, and a handle 3 on one side of the body 1; a display screen 4, which is located on the side of the body 1 away from the illumination head 2, wherein the display screen 4 is used to display detection data; and an anti-drop device 5, which is located on the handle 3, wherein the anti-drop device 5 is used to bind the handle 3 to the wrist of a person, and to drag the body 1 in the event of a fall, thereby ensuring the safety of the body 1.
[0028] Figure 2-6The anti-drop device 5 shown includes: a base 51, which is fixedly connected to the handle 3. A shaft 52 is rotatably connected to the inner wall of the hole in the base 51 via a bearing. The shaft 52 has a T-shaped cross-section. A spool 54 is fixedly connected to the shaft 52 and rotates inside the base 51. A binding rope 55 has one end fixedly connected to the spool 54, which can be used to wind the binding rope 55. A loop 56 is fixedly connected to the end of the binding rope 55 away from the spool 54. The loop 56 is fitted onto the binding rope 55. By setting the anti-drop device 5, the loop 56 is first manually moved to slide along the surface of the binding rope 55, causing the loop 56 to pull the side of the binding rope 55 away from the spool 54 to form a circle with the binding rope itself. Then, the circle formed by the binding rope 55 is placed on the wrist, and the loop 56 is closed. Move the device to a position that fits against the wrist, so that the strap 55 is secured to the wrist of the user using the loop 56. When the device 1 is accidentally dropped, the strap 55, together with the loop 56, the reel 54, and the base 51, assists in dragging the device 1 and tightens the strap 55 under stress, preventing it from slipping off the hand. This completes the anti-drop protection for the device 1. When the device 1 is idle, manually rotate the shaft 52 to rotate the reel 54, which then winds up the strap 55 during rotation, reducing the exposed length of the strap 55 and storing it. This reduces the risk of the user slipping when holding the handle 3 to move the device 1 for testing, which could cause the device 1 to slip off the hand and fall to the ground, resulting in impact damage. This improves the safety of using the device 1.
[0029] Figure 2-6 A metal ring 59 is fixedly connected to the contact position between the base 51 and the binding rope 55. The metal ring 59 is sleeved on the binding rope 55, and its surface is smooth. By setting the metal ring 59, it can replace the base 51 in contact with the surface of the binding rope 55, and the smoothness of its own surface reduces the friction and wear generated with the binding rope 55, thereby improving the service life of the binding rope 55. An intercepting ring 510 is fixedly connected to one side of the binding rope 55. The intercepting ring 510 is placed inside the base 51. A rubber ring is fixedly connected to the side of the intercepting ring 510 away from the coil 54. The intercepting ring 510 is smaller than the inner wall of the coil 54 and larger than the inner wall of the metal ring 59. By setting the intercepting ring 510, when the binding rope 55 moves, the intercepting ring 510 can contact the surface of the metal ring 59 when the binding rope 55 moves to the maximum pull-out position, and prevent the binding rope 55 from moving further out of the base 51. This reduces the possibility of separation due to excessive force at the connection between the binding rope 55 and the coil 54, which would affect the stability of the machine body 1.
[0030] Figure 2-6A sponge pad 511 is fixed to the side of the base 51 near the handle 3. By setting the sponge pad 511, the sponge pad 511 can separate the hand from the surface of the base 51, reducing the wear and tear on the skin of the hand after prolonged contact with the surface of the base 51 when holding the handle 3. Multiple anti-slip strips 53 are fixed to the surface of the shaft 52. The multiple anti-slip strips 53 are arranged at equal intervals. By setting the anti-slip strips 53, the friction between the hand and the surface of the shaft 52 can be increased, reducing the slippage of the hand when manually rotating the shaft 52 and improving the stability of manually rotating the shaft 52.
[0031] Figure 2-6 Two rubber blocks 58 are symmetrically fixed to the inner wall of the groove on the side of the base 51 near the contact position with the binding rope 55. By setting the rubber blocks 58, when the binding rope 55 is retracted into the base 51, the collar 56 moves into the groove of the base 51. Then, the rubber blocks 58 on both sides intercept and limit the collar 56, preventing the collar 56 from shaking and reducing the possibility of the binding rope 55 slipping out of the base 51 due to the shaking of the collar 56, thus further improving the stability of storing the binding rope 55. Two magnetic plates 57 are symmetrically fixed to the side of the base 51 away from the handle 3. By setting the magnetic plates 57, the user can place the machine body 1 on a table through the base 51. At the same time, the magnetic plates 57 can attract some magnetic metal tabletops to reinforce the base 51, assisting the user in reinforcing the machine body 1 and improving the placement stability of the machine body 1.
[0032] Working principle: When in use, the built-in light source inside the body 1 simulates the headlights of a car and shines the light at a specific angle through the irradiation head 2 onto the object being tested. At the same time, the hand grip 3 moves the body 1 to an angle that simulates the driver's line of sight to receive the reflected light. The light signal is then converted into an electrical signal by the STT-101 silicon diode sensor inside the body 1, and the retroreflection coefficient is calculated and displayed on the display screen 4, thus achieving retroreflection detection of the object.
[0033] First, manually move the collar 56 to slide along the surface of the binding rope 55, so that the collar 56 pulls the binding rope 55 away from the coil 54 to form a circle with the binding rope 55 itself. At this time, put the circled part of the binding rope 55 on the wrist, and move the collar 56 to a position that fits against the wrist, so that the binding rope 55 is tied to the person's wrist by the collar 56. When the machine body 1 is slipped from the hand and falls, the binding rope 55, together with the collar 56, coil 54 and base 51, assists in dragging the machine body 1, and tightens the binding rope 55 while under force to prevent the binding rope 55 from falling off the palm, thus completing the anti-fall treatment of the machine body 1. At the same time, when the machine body 1 is idle, manually rotate the shaft 52 to drive the coil 54 to rotate, so that the coil 54 winds up the binding rope 55 during the rotation until the collar 56 moves to a position that fits against the base 51 and stops winding, reducing the exposed length of the binding rope 55 and completing the storage of the binding rope 55.
[0034] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A simplified retroreflective detection structure, characterized by comprising: The body (1) has an illumination head (2) on one side, which is used to simulate the headlights of a car illuminating an object. The body (1) also has a handle (3) on one side. Display screen (4), which is located on the side of the body (1) away from the irradiation head (2), wherein the display screen (4) is used to display detection data; Anti-fall device (5) is installed on the handle (3). The anti-fall device (5) is used to bind the handle (3) to the wrist of the person and to drag the machine (1) when the machine (1) falls, so as to ensure the safety of the machine (1).
2. The simplified retroreflection detection structure according to claim 1, characterized in that: The anti-fall device (5) includes: a base (51), which is fixedly connected to the handle (3), wherein the inner wall of the hole of the base (51) is rotatably connected to a shaft (52) through a bearing, wherein the cross section of the shaft (52) is T-shaped; A spool (54) is fixedly connected to a shaft (52), wherein the spool (54) is placed inside the base (51) and rotates. A binding rope (55) is provided, one end of which is fixedly connected to a spool (54), wherein the spool (54) is used to wind up the binding rope (55), wherein a collar (56) is fixedly connected to the end of the binding rope (55) away from the spool (54), wherein the collar (56) is fitted onto the binding rope (55).
3. The simplified retroreflection detection structure according to claim 2, characterized in that: A metal ring (59) is fixedly connected to the contact position between the base (51) and the binding rope (55), wherein the metal ring (59) is sleeved on the binding rope (55), and the surface of the metal ring (59) is smooth.
4. The simplified retroreflection detection structure according to claim 3, characterized in that: An intercepting ring (510) is fixed to one side of the binding rope (55), wherein the intercepting ring (510) is placed inside the base (51), wherein a rubber ring is fixed to the side of the intercepting ring (510) away from the coil (54), wherein the intercepting ring (510) is smaller than the inner wall of the coil (54) and larger than the inner wall of the metal ring (59).
5. A simplified retroreflective detection structure according to claim 2, characterized in that: A sponge pad (511) is fixed to the side of the base (51) near the handle (3).
6. The simplified retroreflection detection structure according to claim 2, characterized in that: The surface of the shaft (52) is fixed with a plurality of anti-slip strips (53), which are arranged at equal intervals.
7. A simplified retroreflective detection structure according to claim 2, characterized in that: Two rubber blocks (58) are symmetrically fixed to the inner wall of the groove on one side of the base (51) near the contact position with the binding rope (55).
8. A simplified retroreflection detection structure according to claim 2, characterized in that: Two magnet plates (57) are symmetrically fixed to the side of the base (51) away from the handle (3).