Highway radar speed measuring device

Abstract

The embodiment of the utility model discloses an expressway radar speed measuring device. The expressway radar speed measuring device comprises a shell, a hoop, a cover body, a connecting assembly and speed measuring equipment. The shell is provided with an opening, and partial area of the shell is made of transparent materials to form a transparent area. The speed measuring device is detachably connected to the shell through the connecting assembly and can adjust the installation position around a reference axis, and the reference axis is perpendicular to the axis of the hoop. When the shell is locked and fixed to the mounting frame through the hoop, the speed measuring equipment penetrates through the transparent area and is arranged opposite to a target to be subjected to speed measurement, and the opening is located in the bottom of the shell. According to the embodiment of the invention, the mounting and dismounting efficiency of the camera, the light supplement lamp and the radar velocimeter can be remarkably improved, sunlight can be effectively shielded, the aging speed and the failure rate of the camera, the light supplement lamp and the radar velocimeter in the strip-shaped cover can be remarkably reduced, and the maintenance cost is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of road monitoring, and in particular to a highway radar speed measuring device. Background Art

[0002] The highway radar speed measuring device includes a camera, a fill light and a radar speed meter. The camera, fill light and radar speed meter are respectively installed on the crossbar of the gantry or L-shaped frame through clamps. Long-term exposure to wind and sun causes the highway radar speed measuring device to age easily, thereby increasing the failure rate. Utility Model Content

[0003] The embodiments of the present application provide a highway radar speed measuring device, which reduces device aging and lowers the failure rate.

[0004] In order to solve the above technical problems, the embodiments of the present application disclose the following technical solutions:

[0005] On the one hand, a highway radar speed measuring device is provided, including a shell, a clamp, a cover, a connecting assembly and a speed measuring device. The shell has an opening, and a part of the shell is made of a transparent material to form a transparent area. The clamp is connected to the shell. The cover is connected to the shell and can selectively open or close the opening. The connecting assembly is located in the shell. The speed measuring device is a camera, a fill light or a radar speed gun, and the speed measuring device is located in the shell. The speed measuring device is detachably connected to the shell through the connecting assembly, and the installation position can be adjusted around a reference axis, and the reference axis is perpendicular to the axis of the clamp, and the speed measuring device can enter and exit the shell through the opening. Among them, when the shell is locked to the mounting frame by the clamp, the speed measuring device is arranged opposite to the target to be measured through the transparent area, and the opening is located at the bottom of the shell.

[0006] In addition to one or more of the features disclosed above, or as an alternative, the connection assembly includes a connection seat and a clamping member. The connection seat is connected to the housing, and has a first limiting surface and a second limiting surface that intersect each other. The first limiting surface is parallel to the reference axis and is arranged outside the reference axis. The second limiting surface is perpendicular to the reference axis and is arranged opposite to the inner wall surface of the housing. The inner wall surface of the housing, the first limiting surface and the second limiting surface are arranged to form a limiting groove with an opening facing or away from the reference axis. The clamping member is connected to the speed measuring device, and a part of the clamping member is inserted into the limiting groove, fits with the first limiting surface, and abuts against the second limiting surface along the reference axis. Wherein, under the action of a first external force, the clamping member can be separated from the second limiting surface, thereby adjusting the posture of the speed measuring device around the reference axis. Under the action of a second external force, the connection seat or the clamping member can be elastically deformed along the radial direction of the first limiting surface so that the clamping member exits the limiting groove.

[0007] In addition to one or more of the features disclosed above, or as an alternative, there are multiple connecting seats, and the multiple connecting seats are arranged at intervals around the reference axis. The number of the clamping members is equal to that of the connecting seats, and they are arranged one by one, and a part of each clamping member is inserted into a limiting groove formed by the corresponding connecting seat and the inner wall surface of the shell.

[0008] In addition to or as an alternative to one or more features disclosed above, a portion of the clamping member abuts against the second limiting surface along the reference axis under the action of gravity of the speed measuring device, and the direction of action of the first external force is opposite to the direction of gravity.

[0009] In addition to or as an alternative to one or more of the features disclosed above, the clamping member includes an elastic arm and a limiting portion. One end of the elastic arm is connected to the speed measuring device. The limiting portion is connected to the other end of the elastic arm, and the limiting portion is inserted into the limiting groove, fits with the first limiting surface, and abuts against the second limiting surface along the reference axis. Wherein, under the action of a first external force, the limiting portion can be separated from the second limiting surface, thereby adjusting the posture of the speed measuring device around the reference axis, and under the action of a second external force, the limiting portion can swing around the connection end of the elastic arm and the speed measuring device, thereby exiting the limiting groove.

[0010] In addition to or as an alternative to one or more of the features disclosed above, the connection seat is arranged on the opposite side of the opening.

[0011] In addition to or as an alternative to one or more of the features disclosed above, the second limiting surface is provided with uneven texture, and / or the side of the clamping member facing the second limiting surface is provided with uneven texture.

[0012] In addition to or as an alternative to one or more of the features disclosed above, the highway radar speed measuring device further comprises an elastic member, which is configured to exert an elastic force on the cover body, wherein the cover body can overcome the elastic force and open the opening under the action of a third external force, and the cover body can be reset under the action of the elastic force to close the opening after the third external force is removed.

[0013] In addition to one or more of the features disclosed above, or as an alternative, the cover body is rotatably connected to the outer shell and can be rotated to a first posture corresponding to a closed opening, and to a second posture corresponding to an open opening. The elastic member is a torsion spring, which is respectively connected to the cover body and the outer shell, and applies a torsion force to the cover body around the rotation axis of the cover body so that the cover body is reset from the second posture to the first posture.

[0014] In addition to one or more of the features disclosed above, or as an alternative, the highway radar speed measuring device also includes a shielding member and a lifting member. The shielding member is arranged on the outside of the shell and is located on the side of the shell facing away from the outlet. The lifting member is connected to the shielding member and the shell respectively, and the lifting member is configured such that when the ambient temperature is greater than a first predetermined value, the size of the lifting member in a predetermined direction is greater than a first fixed value, thereby causing the shielding member to separate from the shell along the predetermined direction, and when the ambient temperature is lower than a second predetermined value, the size of the lifting member in the predetermined direction is smaller than the second fixed value, thereby causing the shielding member to abut against the shell along the predetermined direction, the second predetermined value is lower than the first predetermined value, and the second fixed value is smaller than the first fixed value.

[0015] In addition to or as an alternative to one or more of the features disclosed above, the lifting member includes a slide cylinder, a slide plate, a thermal expansion fluid, and a spring. The slide cylinder is fixedly connected to the housing, and the slide cylinder has a receiving cavity extending in a predetermined direction, and an assembly port opened in a predetermined direction. The slide plate is fixedly connected to the shielding member, inserted into the receiving cavity through the assembly port, and slidably cooperates with the slide cylinder through the cavity wall of the receiving cavity. The thermal expansion fluid is filled in the slide cylinder. One end of the spring along the predetermined direction is connected to the slide cylinder, and the other end is connected to the slide plate, and is in a stretched state.

[0016] One of the above technical solutions has the following advantages or beneficial effects:

[0017] In this technical solution, the shell can protect the speed measuring device, thereby slowing down the aging of the speed measuring device and further reducing the failure rate of the speed measuring device.

[0018] In addition, the installation posture of the speed measuring device can be adjusted around two intersecting axes, which improves the versatility of the product.

[0019] In addition, the speed measuring device can be easily taken out and placed in the housing through the opening, making maintenance more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The technical solutions and other beneficial effects of the present application will be made apparent by describing in detail the specific implementation modes of the present application in conjunction with the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the first-view axonometric structure of a highway radar speed measuring device proposed by the utility model;

[0022] Figure 2 This is a schematic diagram of the axonometric structure of a highway radar speed measuring device proposed by the utility model from a second viewing angle;

[0023] Figure 3 This is an exploded diagram of a highway radar speed measuring device proposed by the utility model;

[0024] Figure 4This is a schematic diagram of a partially cutaway axonometric structure of a highway radar speed measuring device proposed by the utility model;

[0025] Figure 5 This is a schematic diagram of the partial axonometric structure of a highway radar speed measuring device proposed by the utility model;

[0026] Figure 6 This is a schematic diagram of the camera axonometric structure of a highway radar speed measurement device proposed by the utility model;

[0027] Figure 7 A highway radar speed measuring device proposed by the utility model Figure 3 Schematic diagram of the structure of part A.

[0028] Explanation of the reference numerals: 1-housing; 2-speed measuring device; 5-clamp; 6-connecting seat; 7-limiting groove; 8-elastic arm; 9-limiting part; 10-window groove; 11-transparent window; 12-cover; 13-rotating rod; 14-handle; 15-shielding member; 16-slide; 17-slide plate; 18-spring; 19-rubber wire tube; 20-opening; 21-connecting assembly; 22-first limiting surface; 23-second limiting surface; 25-clamping member; 28-lifting member; L1-axis; L2-reference axis. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and beneficial effects of this application more clear, the following further describes this application in detail in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described in this specification are only for explaining this application, not for limiting this application.

[0030] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" refers to two or more, unless otherwise clearly and specifically defined.

[0031] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] See also Figures 1 to 5 .

[0034] The highway radar speed measuring device includes a housing 1, a clamp 5, a cover 12, a connecting component 21 and a speed measuring device 2. The housing 1 has an opening 20, and a part of the housing 1 is made of a transparent material to form a transparent area (transparent window 11). The clamp 5 is connected to the housing 1. The cover 12 is connected to the housing 1 and can selectively open or close the opening 20. The connecting component 21 is located in the housing 1. The speed measuring device 2 is a camera, a fill light or a radar speed meter. The speed measuring device 2 is located in the housing 1. The speed measuring device 2 is detachably connected to the housing 1 through the connecting component 21, and can adjust the installation position around the reference axis L2. The reference axis L2 is perpendicular to the axis of the clamp 5. The speed measuring device 2 can enter and exit the housing 1 through the opening 20. Among them, when the housing 1 is locked to the mounting frame through the clamp 5, the speed measuring device 2 is arranged opposite to the target to be measured through the transparent area, and the opening 20 is located at the bottom of the housing 1.

[0035] Specifically, Figures 1 to 5 In the illustrated embodiment, the number of speed measuring devices 2 is three, and the three speed measuring devices 2 are respectively cameras, fill lights or radar speed guns. The connecting components 21 are arranged in a one-to-one correspondence with the speed measuring devices 2. Each speed measuring device 2 is connected to the housing 1 through a corresponding connecting component 21. The number of speed measuring devices 2 is not limited to three, and there may be only one, or there may be two, four or more. The speed measuring device 2 is also not limited to cameras, fill lights or radar speed guns, and may also be other devices used for speed measurement or auxiliary speed measurement.

[0036] In an assembly scenario, first open the opening 20, install the speed measuring device 2 in the housing 1, and then fix the housing 1 to the gantry above the road through the clamp 5. After completing the preliminary installation, debug work is performed. By loosening or tightening the clamp 5, adjust the posture of the housing 1 around the axis L1 of the clamp 5 itself. Adjust the posture of the speed measuring device 2 around the reference axis L2 through the connecting component 21. Thus, the installation posture of the speed measuring device 2 can be adjusted around two intersecting axes, thereby improving the versatility of the product. In the case where the speed measuring device 2 is a radar speed gun, the horizontal deflection angle and the vertical pitch angle of the radar speed gun can be adjusted.

[0037] In a maintenance scenario, the opening 20 is opened, and the operator takes out the speed measuring device 2 through the opening 20. After the speed measuring device 2 is maintained, it is installed in the housing 1 through the opening 20. The speed measuring device 2 can be conveniently taken out and put in the housing 1 through the opening 20, which is more convenient for maintenance.

[0038] In this technical solution, the housing 1 can protect the speed measuring device 2, thereby slowing down the aging of the speed measuring device 2 and further reducing the failure rate of the speed measuring device 2.

[0039] In addition, the opening 20 is disposed at the bottom of the housing 1 , which can reduce or even prevent rainwater or debris from entering the housing 1 through the opening 20 .

[0040] Please also read Figure 6 .

[0041] In some embodiments, the connection assembly 21 includes a connection seat 6 and a clamping member 25. There are multiple connection seats 6, and the multiple connection seats 6 are arranged at intervals around the reference axis L2. The number of the clamping members 25 is equal to that of the connection seats 6, and they are arranged one by one.

[0042] The connecting seat 6 is connected to the outer shell 1, and has an intersecting first limiting surface 22 and a second limiting surface 23. The first limiting surface 22 is parallel to the reference axis L2 and is arranged outside the reference axis L2. The second limiting surface 23 is perpendicular to the reference axis L2 and is arranged opposite to the inner wall surface of the outer shell 1. The inner wall surface of the outer shell 1, the first limiting surface 22 and the second limiting surface 23 are arranged to form a limiting groove 7 with the opening 20 facing or away from the reference axis L2.

[0043] The clamping member 25 is connected to the speed measuring device 2, and a portion of the clamping member 25 is inserted into the limiting groove 7, fits with the first limiting surface 22, and abuts against the second limiting surface 23 along the reference axis L2. A portion of each clamping member 25 is inserted into the limiting groove 7 formed by the corresponding connecting seat 6 and the inner wall surface of the housing 1.

[0044] Among them, under the action of the first external force, the clamping member 25 can be separated from the second limiting surface 23, so as to adjust the posture of the speed measuring device 2 around the reference axis L2. Under the action of the second external force, the connecting seat 6 or the clamping member 25 can be elastically deformed along the radial direction of the first limiting surface 22, so that the clamping member 25 can exit the limiting groove 7.

[0045] Specifically, in the assembled state, Figure 6 The clamping member 25 on the left side of the middle is pressed against the first limiting surface 22 in the opposite direction of F2, and is pressed against the second limiting surface 23 in the opposite direction of F1. Figure 6 The clamping member 25 on the middle right side is pressed against the other first limiting surface 22 along the F2 direction, and is pressed against the other second limiting surface 23 along the opposite direction of F1.

[0046] Specifically, in Figure 6 In the illustrated embodiment, the number of the connecting seats 6 is two, and the two connecting seats 6 are evenly distributed around the reference axis L2. In other embodiments, the number of the connecting seat 6 may also be one, for example, Figure 6 The connection base 6 shown in FIG. 6 surrounds the reference axis L2 in a full circle. In other embodiments, the number of the connection bases 6 may be three or more than four.

[0047] exist Figure 6 In the illustrated embodiment, the limiting grooves 7 of each connection seat 6 are open toward the reference axis L2. The clamping member 25 abuts against the first limiting surface 22 from the inner side of the connection seat 6 to the outside. In other embodiments, the limiting grooves 7 of each connection seat 6 may also be open away from the reference axis L2. Correspondingly, the clamping member 25 abuts against the first limiting surface 22 from the outer side of the connection seat 6 to the inside.

[0048] In a scenario of installing a speed measuring device 2, the user squeezes the two clips 25 inward so that the two clips 25 are brought together and inserted into the space between the two connecting seats 6, and then releases the two clips 25. The two clips 25 expand outward and are respectively inserted into the two limiting grooves 7, and are elastically pressed against the first limiting surfaces 22 of the two connecting seats 6.

[0049] In a scenario of removing the speed measuring device 2 , the user presses the two clamping members 25 inwardly so that the two clamping members 25 are brought together and out of the space between the two connecting seats 6 , and then releases the two clamping members 25 .

[0050] In some embodiments, a portion of the clamping member 25 abuts against the second limiting surface 23 along the reference axis L2 under the action of gravity of the speed measuring device 2 , and the action direction of the first external force is opposite to the direction of gravity.

[0051] In this embodiment, in a scenario of adjusting the posture of the speed measuring device 2 around the reference axis L2, the user lifts the speed measuring device 2 along the F1 direction so that the clamp 25 is separated from the second limiting surface 23, and then the user rotates the speed measuring device 2 to a predetermined posture and releases the speed measuring device 2. The speed measuring device 2 is supported on the second limiting surface 23 by the clamp 25 under the action of its own gravity.

[0052] In other embodiments, the elastic force of the elastic member may also be used to make the clamping member 25 elastically press against the second limiting surface 23. When adjusting the posture of the speed measuring device 2 around the reference axis L2, the clamping member 25 overcomes the elastic force and separates from the second limiting surface 23, and the speed measuring device 2 is released after rotating to a predetermined posture, so that the clamping member 25 is pressed against the second limiting surface 23 again under the action of the elastic force.

[0053] In some embodiments, the clamping member 25 includes an elastic arm 8 and a limiting portion 9. One end of the elastic arm 8 is connected to the speed measuring device 2. The limiting portion 9 is connected to the other end of the elastic arm 8, and the limiting portion 9 is inserted into the limiting groove 7, fits with the first limiting surface 22, and abuts against the second limiting surface 23 along the reference axis L2. Under the action of the first external force, the limiting portion 9 can be separated from the second limiting surface 23, thereby adjusting the posture of the speed measuring device 2 around the reference axis L2, and under the action of the second external force, the limiting portion 9 can swing around the connection end of the elastic arm 8 and the speed measuring device 2, thereby exiting the limiting groove 7.

[0054] In some embodiments, the connection seat 6 is disposed on the opposite side of the opening 20 . In this way, it is more convenient for the operator to apply force to the clamping member 25 .

[0055] In some embodiments, the second limiting surface 23 is provided with uneven textures, and / or the clamping member 25 is provided with uneven textures on the side facing the second limiting surface 23. In this way, the clamping member 25 can be stably clamped in the limiting groove 7 and will not move.

[0056] The above embodiments can be reasonably combined to form a new solution. A preferred embodiment of the present application is described below.

[0057] See also Figure 1-Figure 5The embodiment of the present application provides a highway radar speed measuring device, comprising: a housing 1, the housing 1 having an opening 20, a part of the housing 1 being made of a transparent material to form a transparent area; a clamp 5, the clamp 5 being connected to the housing 1; a cover 12, the cover 12 being connected to the housing 1 and selectively opening or closing the opening 20; a connecting component 21, the connecting component 21 being located in the housing 1; a speed measuring device 2, the speed measuring device 2 being a camera, a fill light or a radar speed meter, the speed measuring device 2 being located in the housing 1, the speed measuring device 2 being detachably connected to the housing 1 through the connecting component 21, and being able to adjust the installation position around a reference axis L2, the reference axis L2 being perpendicular to the axis of the clamp 5, and the speed measuring device 2 being able to enter and exit the housing 1 through the opening 20; wherein, when the housing 1 is locked to the mounting frame through the clamp 5, the speed measuring device 2 is arranged opposite to the target to be measured through the transparent area, and the opening 20 is located at the bottom of the housing 1.

[0058] Specifically, the radar speed gun can measure the speed of cars on the highway in real time, the camera is used to capture the car image, and the fill light is used to fill the camera with light; in another implementation, the camera has a speed measurement function, and the fill light is used to fill the camera with light.

[0059] During the actual installation, the housing 1 can be fixed on the columnar crossbar or the bracket crossbar of the gantry through the clamp 5. During the fixing period, the housing 1 can be tilted on the crossbar by rotating the clamp 5, so as to complete the adjustment of the overall front and rear angle. During actual use, the camera, fill light and radar speed meter can complete the speed measurement and picture collection of the car through the transparent area of ​​the housing 1, and the housing 1 with only the opening 20 at the lower end can effectively block the sunlight and rain and snow, which can significantly reduce the aging speed and failure rate of the camera, fill light and radar speed meter in the housing 1, thereby reducing the maintenance cost;

[0060] In other embodiments, the transparent area may include a window groove 10 set on the shell 1, in which a transparent window 11 is fixedly installed. The material of the transparent window 11 can be transparent smooth glass or a highly transparent plastic plate, provided that it is sufficient to fill the window groove 10.

[0061] See also Figure 3-Figure 6The connection assembly 21 in the embodiment of the present application includes a connection seat 6, which is connected to the housing 1 and has a first limiting surface 22 and a second limiting surface 23 intersecting each other. The first limiting surface 22 is parallel to the reference axis L2 and is arranged outside the reference axis L2. The second limiting surface 23 is perpendicular to the reference axis L2 and is arranged opposite to the inner wall surface of the housing 1. The inner wall surface of the housing 1, the first limiting surface 22 and the second limiting surface 23 are surrounded to form a limiting groove 7 with an opening facing or away from the reference axis L2; The connecting member 25 and the clamping member 25 are connected to the speed measuring device 2, and a part of the clamping member 25 is inserted into the limiting groove 7, fits with the first limiting surface 22, and abuts against the second limiting surface 23 along the reference axis L2; ​​wherein, under the action of a first external force, the clamping member 25 can be separated from the second limiting surface 23, thereby adjusting the posture of the speed measuring device 2 around the reference axis L2, and under the action of a second external force, the connecting seat 6 or the clamping member 25 can be elastically deformed along the radial direction of the first limiting surface 22, so that the clamping member 25 exits the limiting groove 7.

[0062] See also Figure 3-Figure 6 The clamping member 25 in the embodiment of the present application includes an elastic arm 8, one end of which is connected to the speed measuring device 2; a limiting portion 9, which is connected to the other end of the elastic arm 8, and the limiting portion 9 is inserted into the limiting groove 7, fits with the first limiting surface 22, and abuts against the second limiting surface 23 along the reference axis L2; ​​wherein, under the action of a first external force, the limiting portion 9 can be separated from the second limiting surface 23, thereby adjusting the posture of the speed measuring device 2 around the reference axis L2, and under the action of a second external force, the limiting portion 9 can swing around the connection end of the elastic arm 8 and the speed measuring device 2, thereby exiting the limiting groove 7.

[0063] Specifically, before installing the entire device on the gantry, the ends of the two elastic arms 8 are brought close to each other by a second external force, and the two elastic arms 8 will drive the two limiting parts 9 to approach each other, and then the camera is extended into the housing 1, and the two limiting parts 9 are directed toward two symmetrically arranged limiting grooves 7. By removing the second external force, the two limiting parts 9 will be reset away from each other, and the two limiting parts 9 will be clamped in the two limiting grooves 7, and the installation of the camera can be completed. During the installation process, the camera lens needs to be directed toward the transparent area of ​​the housing 1 to facilitate the shooting of the camera. In summary, the camera, fill light and radar speed meter are all clamped in the housing 1 by the limiting parts 9 on the elastic arms 8, making the overall modular design, which will significantly improve the installation and disassembly efficiency of the camera, fill light and radar speed meter, and indirectly improve the work efficiency of the maintenance personnel;

[0064] When the direction of the speed measuring device 2 needs to be adjusted, a second external force is applied to the two elastic arms 8, and then the speed measuring device 2 is rotated, so that the direction adjustment of the speed measuring device 2 can be completed efficiently and conveniently.

[0065] In other embodiments, arc-shaped limiting grooves 7 are provided on the opposite surfaces of the two connecting seats 6 , and the two limiting portions 9 are respectively snap-fitted into the two limiting grooves 7 .

[0066] Specifically, there are multiple connection seats 6, which are arranged at intervals around the reference axis L2; ​​the number of the clamping members 25 is equal to that of the connection seats 6, and they are arranged one by one, and a part of each clamping member 25 is inserted into the limiting groove 7 formed by the corresponding connection seat 6 and the inner wall surface of the housing 1, and the connection seat 6 is arranged on the opposite side of the opening 20;

[0067] Specifically, a portion of the clamping member 25 abuts against the second limiting surface 23 along the reference axis L2 under the action of gravity of the speed measuring device 2 , and the action direction of the first external force is opposite to the direction of gravity.

[0068] In other embodiments, the second limiting surface 23 is provided with uneven texture, and / or the clamping member 25 is provided with uneven texture on the side facing the second limiting surface 23 , and the texture is used to increase the friction resistance between the limiting portion 9 and the limiting groove 7 .

[0069] See also Figure 2-Figure 4 as well as Figure 7 In some embodiments, it also includes an elastic member, which is configured to apply an elastic force to the cover body 12; wherein the cover body 12 can overcome the elastic force and open the opening 20 under the action of a third external force, and the cover body 12 can reset under the action of the elastic force to close the opening 20 after the third external force is removed.

[0070] Specifically, before the entire device is installed on the gantry, a third external force is applied to the cover body 12, and the cover body 12 will open from the opening 20 of the outer shell 1. After the speed measuring device 2 is installed, the third external force is removed, and the elasticity of the elastic member will cause the cover body 12 to block the opening 20 of the outer shell 1 again.

[0071] In some embodiments, the cover 12 is provided with mesh holes, so that the speed measuring device 2 in the housing 1 can dissipate heat through the mesh holes, while also preventing foreign matter from entering the housing 1 and contaminating the speed measuring device 2 .

[0072] In some embodiments, the cover body 12 is rotatably connected to the housing 1 and is capable of rotating to a first posture corresponding to a closed opening 20, and to a second posture corresponding to an open opening 20. The elastic member is a torsion spring, which is respectively connected to the cover body 12 and the housing 1, and applies a torsion force to the cover body 12 around the rotation axis of the cover body 12 so that the cover body 12 is reset from the second posture to the first posture.

[0073] In some embodiments, the cover 12 can be rotatably connected to the opening 20 of the housing 1 via rotating rods 13 on both sides, and the torsion spring is sleeved on the outer wall of the rotating rod 13 .

[0074] In some embodiments, a handle 14 is fixedly mounted on the outer wall of the movable end of the cover body 12. The handle 14 is used to pull the cover body 12. When opening the cover body 12, pulling the handle 14 can facilitate the installer to open the cover body 12, and the shape of the handle 14 can be set to be T-shaped.

[0075] See also Figure 1-Figure 3 In some embodiments, it also includes a shielding member 15, which is arranged on the outside of the shell 1 and is located on the side of the shell 1 away from the opening 20; a lifting member 28, which is respectively connected to the shielding member 15 and the shell 1, and the lifting member 28 is configured so that when the ambient temperature is greater than a first predetermined value, the size of the lifting member 28 in a predetermined direction is greater than a first fixed value, so that the shielding member 15 is separated from the shell 1 along the predetermined direction; when the ambient temperature is lower than a second predetermined value, the size of the lifting member 28 in the predetermined direction is smaller than the second fixed value, so that the shielding member 15 is in contact with the shell 1 along the predetermined direction, the second predetermined value is lower than the first predetermined value, and the second fixed value is smaller than the first fixed value.

[0076] Specifically, when the temperature of the external environment reaches above 50 degrees Celsius (mainly in the hot summer), the lifting member 28 will drive the shielding member 15 to no longer be close to the upper end surface of the outer shell 1, so that the temperature on the shielding member 15 is not easily transferred to the outer shell 1, so that the heat insulation effect of the shielding member 15 is significantly improved; and when the temperature is lower (mainly in the cold winter of 10 degrees Celsius or below zero), the lifting member 28 will drive the shielding member 15 to be close to the upper end surface of the outer shell 1 again. At this time, the heat given to the shielding member 15 by the sunlight can be transferred to the outer shell 1, and the outer shell 1 can be transferred to the camera, fill light and radar speed gun, so that the operation of the camera, fill light and radar speed gun is more stable.

[0077] See also Figure 1-Figure 3 In some embodiments, the lifting member 28 includes a slide cylinder 16 fixedly connected to the outer wall of the shell 1, and the lower end of the shell 1 is fixedly connected to a slide plate 17 slidably connected to the slide cylinder 16. The inner bottom of the slide cylinder 16 is filled with a thermal expansion liquid. The thermal expansion liquid has the characteristics of thermal expansion and contraction. When the temperature reaches 50 degrees Celsius, the thermal expansion liquid expands significantly. When the temperature reaches below 10 degrees Celsius, the thermal expansion liquid shrinks significantly. The expanded thermal expansion liquid can make the slide plate 17 lift upward, thereby making the shielding member 15 upward. Otherwise, the shielding member 15 will move downward and reset. The thermal expansion liquid can be an organic solvent such as ethanol, methanol, and benzene.

[0078] In other embodiments, the shielding member 15 may be shaped to be high in the middle and low on both sides, so that rainwater and some foreign matter on the shielding member 15 can slide to both sides to prevent accumulation on the shielding member 15. In order to protect the clamp 5, the width of the shielding member 15 may extend to the top of the clamp 5, such as Figure 1As shown, the shielding member 15 can shield the clamp 5 from sunlight and rain.

[0079] In other embodiments, a spring 18 is installed between the bottom of the slide plate 17 and the inner bottom of the slide cylinder 16, and the spring 18 is used to pull the slide plate 17 to move downward and reset.

[0080] See also Figure 3 In some embodiments, it also includes a rubber wire tube 19 with elastic contraction characteristics. The rubber wire tube 19 runs through the rear wall of the shell 1. The rubber wire tube 19 is used to fix the wires. When it is necessary to lead out the connecting wires of the camera, fill light and radar speed meter, the connecting wires can be passed through the rubber wire tube 19.

[0081] The introduction provided in the above steps is only used to help understand the method, structure and core idea of ​​the present application. For ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A highway radar speed measuring device, characterized in that: include: A shell, wherein the shell has an opening, and a partial area of ​​the shell is made of a transparent material to form a transparent area; A clamp connected to the housing; a cover body, the cover body being connected to the housing and selectively opening or closing the opening; a connecting assembly, the connecting assembly being located in the housing; A speed measuring device, wherein the speed measuring device is a camera, a fill light or a radar speed meter, the speed measuring device is located in the housing, the speed measuring device is detachably connected to the housing through the connecting assembly, and the installation position can be adjusted around a reference axis, the reference axis is perpendicular to the axis of the clamp, and the speed measuring device can enter and exit the housing through the opening; When the housing is locked on the mounting frame by the clamp, the speed measuring device is arranged opposite to the target to be measured through the transparent area, and the opening is located at the bottom of the housing.

2. The highway radar speed measuring device as claimed in claim 1, characterized in that: The connection component comprises: A connecting seat, the connecting seat is connected to the housing, and has a first limiting surface and a second limiting surface intersecting each other, the first limiting surface is parallel to the reference axis and is arranged outside the reference axis, the second limiting surface is perpendicular to the reference axis and is arranged opposite to the inner wall surface of the housing, and the inner wall surface of the housing, the first limiting surface and the second limiting surface are surrounded to form a limiting groove with an opening facing toward or away from the reference axis; A clamping member, the clamping member is connected to the speed measuring device, a part of the clamping member is inserted into the limiting groove, fits with the first limiting surface, and abuts against the second limiting surface along the reference axis; Among them, under the action of a first external force, the clamping part can be separated from the second limiting surface, so as to adjust the posture of the speed measuring device around the reference axis. Under the action of a second external force, the connecting seat or the clamping part can be elastically deformed along the radial direction of the first limiting surface, so that the clamping part can withdraw from the limiting groove.

3. The highway radar speed measuring device as claimed in claim 2, characterized in that: There are multiple connecting seats, and the multiple connecting seats are arranged at intervals around the reference axis; The number of the clamping parts is equal to that of the connecting seats, and they are arranged in one-to-one correspondence, and a part of each of the clamping parts is inserted into the limiting groove formed by the corresponding connecting seat and the inner wall surface of the shell.

4. The highway radar speed measuring device as claimed in claim 2, characterized in that: A portion of the clamping member abuts against the second limiting surface along the reference axis under the action of gravity of the speed measuring device, and the action direction of the first external force is opposite to the direction of gravity.

5. The highway radar speed measuring device as claimed in claim 2, characterized in that: The card connector comprises: An elastic arm, one end of which is connected to the speed measuring device; a limiting portion, the limiting portion being connected to the other end of the elastic arm, the limiting portion being inserted into the limiting groove, being fitted with the first limiting surface, and being in contact with the second limiting surface along the reference axis; Among them, under the action of the first external force, the limiting portion can be separated from the second limiting surface, thereby adjusting the posture of the speed measuring device around the reference axis. Under the action of the second external force, the limiting portion can swing around the connecting end between the elastic arm and the speed measuring device, thereby exiting the limiting groove.

6. The highway radar speed measuring device as claimed in claim 2, characterized in that: The connecting seat is arranged at the opposite side of the opening.

7. The highway radar speed measuring device as claimed in claim 2, characterized in that: The second limiting surface is provided with uneven textures, and / or the side of the clamping member facing the second limiting surface is provided with uneven textures.

8. The highway radar speed measuring device as claimed in claim 1, characterized in that: Also includes: an elastic member, wherein the elastic member is configured to apply an elastic force to the cover body; Wherein, the cover body can overcome the elastic force and open the opening under the action of the third external force, and the cover body can be reset under the action of the elastic force to close the opening after the third external force is removed.

9. The highway radar speed measuring device as claimed in claim 8, characterized in that: The cover body is rotatably connected to the shell and can be rotated to a first posture corresponding to closing the opening, and to a second posture corresponding to opening the opening. The elastic member is a torsion spring, which is respectively connected to the cover body and the shell, and applies a torsion force to the cover body around the rotation axis of the cover body so that the cover body is reset from the second posture to the first posture.

10. The highway radar speed measuring device as claimed in claim 1, characterized in that: Also includes: A shielding member, the shielding member is arranged outside the housing and located at a side of the housing away from the opening; A lifting member, the lifting member is respectively connected to the shielding member and the shell, and the lifting member is configured such that when the ambient temperature is greater than a first predetermined value, the size of the lifting member in a predetermined direction is greater than a first fixed value, thereby causing the shielding member to separate from the shell along the predetermined direction; when the ambient temperature is lower than a second predetermined value, the size of the lifting member in the predetermined direction is smaller than a second fixed value, thereby causing the shielding member to abut against the shell along the predetermined direction, the second predetermined value is lower than the first predetermined value, and the second fixed value is smaller than the first fixed value.

11. The highway radar speed measuring device as claimed in claim 10, characterized in that: The lifting member comprises: A slide cylinder, the slide cylinder is fixedly connected to the housing, the slide cylinder has a receiving cavity extending along the predetermined direction, and an assembly opening opened toward the predetermined direction; A slide plate, the slide plate is fixedly connected to the shielding member, inserted into the accommodating cavity through the assembly opening, and slidably matched with the slide cylinder through the cavity wall of the accommodating cavity; Thermal expansion liquid, the thermal expansion liquid is filled in the slide cylinder; A spring, wherein one end of the spring along the predetermined direction is connected to the slide cylinder, and the other end of the spring is connected to the slide plate, and is in a stretched state.

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