A construction weight limit sign

Abstract

The utility model discloses a construction weight limit sign, including a sign detachable from the top of a support rod surface, a driving box body is provided at the bottom of the support rod, the bottom of the support rod passes through the driving box body, and is rotatably connected to the bottom of the inner cavity of the driving box body through a bearing seat, the bottom of the driving box body is fixedly connected to a support connecting plate, and the bottom of the support rod surface is fixedly connected to a gear. When the utility model needs to adjust a suitable observation angle, it only needs to drive the rack to move through the driving structure, thereby driving the gear to rotate through the meshing between the teeth, thereby driving the support rod to rotate through the bearing seat at its bottom, and at the same time causing the sign connected to the support rod surface to rotate, and when it rotates to an appropriate rotation angle, it stops rotating, completing the adjustment of the observation angle, thereby facilitating the observation of the construction sign, and reducing the blind area of ​​the observation field.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction signboards, in particular to a building construction weight limit signboard. Background Art

[0002] At construction sites, weight limit signs are installed on roads where transport vehicles travel to warn them to avoid overloading. However, due to the different sections where the signs are installed or their location, the drivers of transport vehicles may not notice some weight limit signs, which may lead to blind spots in the warnings, making it impossible to observe the signs and increasing the difficulty of observation.

[0003] To this end, we propose a construction weight limit sign that can adjust the viewing angle to facilitate observation, in order to solve the above-mentioned shortcomings. Utility Model Content

[0004] The purpose of the utility model is to provide a construction weight limit sign, which has the function of adjusting the observation angle to facilitate observation of the construction sign, so as to solve the above-mentioned background technical problems.

[0005] The technical solution of the utility model for solving the above-mentioned technical problems is as follows: A construction weight limit sign, including a sign that can be removed from the top of the support rod surface, a drive box body is provided at the bottom of the support rod, the bottom of the support rod passes through the drive box body, and is rotatably connected to the bottom of the inner cavity of the drive box body through a bearing seat, the bottom of the drive box body is fixedly connected to a support connecting plate, the bottom of the support rod surface is fixedly connected to a gear one, the back of the gear one is engaged with a rack, the back of the rack is slidingly arranged with the back of the inner cavity of the drive box body, and a driving structure for moving the rack is provided on one side of the rack.

[0006] Preferably, the driving structure includes a servo motor fixedly connected to the bottom of the inner cavity of the driving box body, the output shaft of the servo motor passes through the driving box body and extends to the outside of the driving box body and is fixedly connected to gear 2, the surface of gear 2 is engaged with gear 3, the inner surface of gear 3 is fixedly connected to a threaded barrel, one side of the threaded barrel is rotatably connected to the driving box body through bearing seat 2, and the inner surface of the threaded barrel is threadedly connected to a threaded rod.

[0007] Preferably, the threaded rod passes through the driving box body and extends into the interior of the driving box body, and the threaded rod passes through the end surface of the driving box body and is fixedly connected to the end surface of the rack.

[0008] Preferably, a guide groove is provided on the back of the inner cavity of the drive box body, a guide seat is slidably connected to the inner surface of the guide groove, and the front side of the guide seat is fixedly connected to the back side of the rack.

[0009] Preferably, the front and back surfaces of the support rod are detachably connected to the connection point of the identification plate via limiting bolts.

[0010] Preferably, threaded mounting holes are provided at the four corners of the top of the supporting connecting plate, and an inspection plate is detachably connected to the front of the driving box body.

[0011] The beneficial effects of the utility model are:

[0012] 1. When the present invention needs to adjust the viewing angle, it is only necessary to move the rack through the driving structure, thereby driving the gear 1 to rotate through the meshing between the teeth, thereby driving the support rod to rotate through the bearing seat 1 at the bottom thereof, and at the same time causing the sign connected to the surface of the support rod to rotate. When the rotation reaches the appropriate rotation angle, the rotation stops, and the viewing angle is adjusted, thereby facilitating the observation of construction signboards and reducing blind spots in the field of view.

[0013] 2. The utility model drives the second gear to rotate by the servo motor, thereby driving the third gear meshing on its surface to rotate, thereby causing the threaded barrel connected to its axis to rotate. At the same time, the threaded barrel rotates through the second bearing seat, thereby driving the threaded rod to rotate on the inner surface of the threaded barrel, thereby driving the rack connected to it to move, thereby driving the first gear to rotate;

[0014] 3. The utility model guides the movement of the rack by arranging a guide groove whose inner surface is slidably connected to a guide seat;

[0015] 4. The utility model provides a detachable connection between the front and back surfaces of the support rod and the connection point of the identification plate through limit bolts, which makes it convenient to replace different identification plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] in:

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the drive box of the utility model;

[0019] Figure 3 This is a partial enlarged view of point A of the present invention.

[0020] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0021] 1. Support connecting plate; 2. Drive box body; 3. Bearing seat 1; 4. Support rod; 5. Identification plate; 6. Gear 1; 7. Rack; 8. Drive structure; 9. Guide groove; 10. Guide seat; 81. Servo motor; 82. Gear 2; 83. Gear 3; 84. Threaded barrel; 85. Bearing seat 2; 86. Threaded rod. DETAILED DESCRIPTION

[0022] Hereinafter, an embodiment of a construction weight limit signboard of the present invention will be described with reference to the accompanying drawings. Example 1

[0023] Figure 1-3The utility model shows an embodiment of a construction weight limit sign, including a sign 5 that can be removed from the top of the support rod 4 surface. The bottom of the support rod 4 is provided with a drive box body 2. The bottom of the support rod 4 passes through the drive box body 2 and is rotatably connected to the bottom of the inner cavity of the drive box body 2 through a bearing seat 3. The bottom of the drive box body 2 is fixedly connected to a support connecting plate 1. The bottom of the support rod 4 surface is fixedly connected to a gear 6. The back of the gear 6 is meshed with a rack 7. The back of the rack 7 is slidably arranged with the back of the inner cavity of the drive box body 2. One side of the rack 7 is provided with a driving structure for moving the rack 7 8. The driving structure 8 includes a servo motor 81 fixedly connected to the bottom of the inner cavity of the driving box body 2. The output shaft of the servo motor 81 passes through the driving box body 2 and extends to the outside of the driving box body 2 and is fixedly connected to the second gear 82. The surface of the second gear 82 is meshed with the third gear 83. The inner surface of the third gear 83 is fixedly connected to the threaded cylinder 84. One side of the threaded cylinder 84 is rotatably connected to the driving box body 2 through the second bearing seat 85. The inner surface of the threaded cylinder 84 is threadedly connected to a threaded rod 86. The threaded rod 86 passes through the driving box body 2 and extends to the interior of the driving box body 2. The threaded rod 86 passes through the driving box body 2. The end face is fixedly connected to the end face of the rack 7, and a guide groove 9 is provided on the back of the inner cavity of the driving box body 2. The inner surface of the guide groove 9 is slidably connected to a guide seat 10. The front of the guide seat 10 is fixedly connected to the back of the rack 7. The inner surface of the guide groove 9 is slidably connected to the guide seat 10 to guide the movement of the rack 7. The servo motor 81 drives the gear 2 82 to rotate, thereby driving the gear 3 83 engaged on its surface to rotate, so that the threaded cylinder 84 connected to its axis rotates, and at the same time, the threaded cylinder 84 rotates through the bearing seat 2 85, thereby driving the threaded rod 86 on the threaded The inner surface thread of the cylinder 84 rotates, thereby driving the connected rack 7 to move, thereby driving the gear 6 to rotate. When it is necessary to adjust the appropriate observation angle, it is only necessary to drive the rack 7 to move through the driving structure 8, thereby driving the gear 6 to rotate through the engagement between the teeth, thereby driving the support rod 4 to rotate through the bearing seat 3 at its bottom, and at the same time causing the sign 5 connected to the surface of the support rod 4 to rotate. When it rotates to the appropriate rotation angle, it stops rotating, completing the adjustment of the observation angle, thereby facilitating the observation of construction signboards and reducing blind spots in the field of view. Example 2

[0024] Figure 1-3The utility model shows an embodiment of a construction weight limit sign, including a sign board 5 that can be detached from the top of the support rod 4 surface. The front and back surfaces of the support rod 4 are detachably connected to the connection points of the sign board 5 by limit bolts. By setting the front and back surfaces of the support rod 4 to be detachably connected to the connection points of the sign board 5 by limit bolts, different sign boards can be easily replaced. A driving box body 2 is provided at the bottom of the support rod 4. The bottom of the support rod 4 passes through the driving box body 2 and is rotatably connected to the bottom of the inner cavity of the driving box body 2 through a bearing seat 1. The bottom of the driving box body 2 is fixedly connected to a supporting connecting plate 1. The four corners of the top of the supporting connecting plate 1 are provided with threaded mounting holes. The front of the driving box body 2 is detachably connected to an inspection plate. The bottom of the support rod 4 surface is fixedly connected to a gear 1 6. The back of the gear 1 6 is meshed with a rack 7. The back of the rack 7 is slidably arranged with the back of the inner cavity of the driving box body 2. A driving structure 8 for moving the rack 7 is provided on one side of the rack 7.

[0025] Working principle: When the present invention is used, when it is necessary to adjust the appropriate viewing angle, the servo motor 81 is started, and the servo motor 81 drives the gear 2 82 to rotate, thereby driving the gear 3 83 engaged on its surface to rotate, so that the threaded cylinder 84 connected at its axis rotates, and at the same time the threaded cylinder 84 rotates through the bearing seat 2 85, thereby driving the threaded rod 86 to rotate on the inner surface of the threaded cylinder 84, thereby driving the rack 7 connected to it to move, thereby driving the gear 1 6 to rotate through the engagement between the teeth, thereby driving the support rod 4 to rotate through the bearing seat 1 3 at its bottom, and at the same time making the sign 5 connected to the surface of the support rod 4 rotate, and when it rotates to the appropriate rotation angle, it stops rotating, completing the adjustment of the viewing angle, thereby facilitating the observation of construction signboards and reducing blind spots in the field of view.

Claims

1. A weight limit sign for construction, comprising a sign (5) detachable from the top of a support rod (4), characterized in that: A driving box body (2) is arranged at the bottom of the support rod (4); the bottom of the support rod (4) passes through the driving box body (2) and is rotatably connected to the bottom of the inner cavity of the driving box body (2) through a bearing seat (3); a supporting connecting plate (1) is fixedly connected to the bottom of the driving box body (2); a gear (6) is fixedly connected to the bottom of the surface of the support rod (4); a rack (7) is meshed on the back of the gear (6); the back of the rack (7) is slidably arranged with the back of the inner cavity of the driving box body (2); and a driving structure (8) for moving the rack (7) is arranged on one side of the rack (7).

2. A construction weight limit sign according to claim 1, characterized in that: The driving structure (8) comprises a servo motor (81) fixedly connected to the bottom of the inner cavity of the driving box body (2); the output shaft of the servo motor (81) penetrates the driving box body (2) and extends to the outside of the driving box body (2) and is fixedly connected to a second gear (82); a third gear (83) is meshed on the surface of the second gear (82); a threaded barrel (84) is fixedly connected to the inner surface of the third gear (83); one side of the threaded barrel (84) is rotatably connected to the driving box body (2) via a second bearing seat (85); and a threaded rod (86) is threadedly connected to the inner surface of the threaded barrel (84).

3. A construction weight limit sign according to claim 2, characterized in that: The threaded rod (86) passes through the drive box body (2) and extends into the interior of the drive box body (2); the threaded rod (86) passes through the end surface of the drive box body (2) and is fixedly connected to the end surface of the rack (7).

4. A construction weight limit sign according to claim 1, characterized in that: A guide groove (9) is provided on the back of the inner cavity of the drive box body (2), a guide seat (10) is slidably connected to the inner surface of the guide groove (9), and the front surface of the guide seat (10) is fixedly connected to the back surface of the rack (7).

5. A construction weight limit sign according to claim 1, characterized in that: The front and back surfaces of the support rod (4) are detachably connected to the connection point of the identification plate (5) via limiting bolts.

6. A construction weight limit sign according to claim 5, characterized in that: The four corners of the top of the supporting connecting plate (1) are provided with threaded mounting holes, and the front of the driving box body (2) is detachably connected with an inspection plate.

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