Municipal road height limiting frame

Abstract

The municipal road height limiting frame comprises two supporting units arranged side by side and a height limiting rod arranged between the two supporting units, each supporting unit comprises a main rod, a lifting rod arranged in the main rod in a sliding mode and a limiting mechanism arranged between the main rod and the lifting rod, and a containing groove is formed in the inner wall of the main rod. A containing groove is formed in the outer wall of the main rod, an adjusting gear is rotationally connected into the containing groove, a transfer hole is formed in the outer wall of the main rod and communicates with the containing groove, an adjusting shaft is rotationally connected into the transfer hole and coaxially connected to the adjusting gear, a rectangular inserting opening is formed in the end of the adjusting shaft, and a mounting groove is formed in the outer wall of the lifting rod and extends in the axial direction of the lifting rod. An adjusting rack is fixedly connected in the mounting groove, and the side part of the adjusting gear extends into the mounting groove and is meshed with the adjusting rack. According to the height limiting frame, the lifting rod can be controlled to slide through the servo motor, and the height limiting frame has the advantage that height limiting adjustment is convenient.

Description

Technical Field

[0001] The utility model relates to a height-limiting frame, and particularly to a road height-limiting frame for municipal use. Background Art

[0002] At present, a Chinese patent with the publication number CN218405165U discloses a bridge height-limiting frame, which includes a main rod. An elevating rod is slidably connected inside the main rod, and a height-limiting frame is fixedly connected to the top of the elevating rod. Threaded holes are formed on the surface of the main rod, and bolts are threadedly connected inside the threaded holes. A number of elevating holes are formed on the surface of the elevating rod, and the elevating holes are adapted to the bolts. A warning screen is fixedly connected inside the height-limiting frame. A support rod is fixedly connected to the upper end of the height-limiting frame, a baffle is fixedly connected to the top of the support rod, and a solar module is fixedly connected to the upper end of the baffle. Reinforcement components are fixedly connected to the front and back surfaces of the main rod, and a fixing piece is fixedly connected to the bottom of the main rod. However, in the process of adjusting the height limit of the above bridge height-limiting frame, it is necessary to rely on a crane to control the sliding of the elevating rod inside the main rod, which has the defect of inconvenient height limit adjustment. Summary of the Invention

[0003] In view of this, the purpose of the utility model is to provide a road height-limiting frame for municipal use, which has the advantage of convenient height limit adjustment.

[0004] To solve the above technical problems, the technical solution of the utility model is: a road height-limiting frame for municipal use, which includes two support units arranged side by side and a height-limiting rod arranged between the two support units. The support unit includes a main rod, an elevating rod slidably arranged inside the main rod, and a limiting mechanism arranged between the main rod and the elevating rod. A receiving groove is formed on the inner wall of the main rod, an adjusting gear is rotatably connected in the receiving groove, a transfer hole is formed on the outer wall of the main rod, the transfer hole communicates with the receiving groove, an adjusting shaft is rotatably connected in the transfer hole, the adjusting shaft is coaxially connected to the adjusting gear, a rectangular insertion interface is formed at the end of the adjusting shaft, an installation groove is formed on the outer wall of the elevating rod, the installation groove extends along the axial direction of the elevating rod, an adjusting rack is fixedly connected in the installation groove, and the side part of the adjusting gear extends into the installation groove and meshes with the adjusting rack.

[0005] Through the above technical solution, when it is necessary to adjust the height limit of the above height limit frame, first control the limit mechanism to fail. Secondly, move the servo motor with a rectangular insertion block at the head to the side wall of the main rod, insert the rectangular insertion block into the rectangular insertion slot. Then, the servo motor drives the adjustment gear to rotate through the adjustment shaft, and the adjustment gear drives the lifting rod to slide up and down through the adjustment rack. When the height limit rod is at the specified height, lock the lifting rod through the limit mechanism, and move the servo motor away from the side wall of the main rod. The above height limit frame can control the sliding of the lifting rod through the servo motor, and has the advantage of relatively convenient height limit adjustment.

[0006] Preferably, a sliding groove is formed in the outer wall of the main rod. The inner diameter of the sliding groove is larger than the inner diameter of the transfer hole, and the sliding groove is coaxially communicated with the transfer hole. A plurality of limiting grooves are formed in the inner groove wall of the sliding groove along the circumferential direction. The limit mechanism includes a limit sleeve slidably arranged outside the adjustment shaft. A limiting protrusion is arranged on the outer wall of the limit sleeve, and the limiting protrusion is used to be stuck into one of the limiting grooves. A positioning protrusion is arranged on the inner wall of the limit sleeve, and a positioning groove is formed in the outer wall of the adjustment shaft along the axial direction. The positioning protrusion is slidably connected to the positioning groove.

[0007] Through the above technical solution, when the limit sleeve is close to the main rod and the limiting protrusion is stuck into the limiting groove, at this time, the limiting protrusion and the limiting groove cooperate to limit the sliding of the lifting rod. When the limit sleeve is far away from the main rod and the limiting protrusion is separated from the limiting groove, the limiting effect of the limit mechanism fails, and the lifting rod can slide inside the main rod. The positioning protrusion and the positioning groove cooperate with each other to limit the relative rotation of the limit sleeve and the adjustment shaft, thereby improving the transmission efficiency of the movement.

[0008] Preferably, a through hole is formed in the outer wall of the limit sleeve along the radial direction. An installation screw is inserted through the through hole, and the threaded section of the installation screw is threadedly connected to the positioning protrusion to press and fix the positioning protrusion and the limit sleeve.

[0009] Through the above technical solution, the installation screw presses and fixes the positioning protrusion and the limit sleeve, making the disassembly and assembly of the positioning protrusion more convenient and fast.

[0010] Preferably, a buffer rubber is fixedly connected to the surface of the positioning protrusion, and the buffer rubber is pressed and fixed by the positioning protrusion and the limit sleeve.

[0011] Through the above technical solution, the buffer rubber can play a buffering role. In this way, during the installation process of the positioning protrusion, the positioning protrusion is not easy to collide with the inner wall of the limit sleeve, and neither the positioning protrusion nor the limit sleeve is easy to deform.

[0012] Preferably, a support frame is arranged on the outer wall of the main rod, and the support frame is located below the adjustment shaft.

[0013] Through the above technical solution, the support frame can be used to support the servo motor, making the height limit adjustment process of the above height limit frame more convenient.

[0014] Preferably, the support frame includes a support base arranged on the outer wall of the main rod and a support flap hinged to the outside of the support base. A limit baffle is arranged at the outer bottom of the support base. The limit baffle is located below the support flap. When the support flap abuts against the limit baffle, the support flap and the support base are in the same plane.

[0015] Through the above technical solution, the support flap is hinged to the support base. After the height limit of the height limit frame is adjusted, the support flap can be controlled to turn upwards, thereby reducing the space occupied by the support frame. The limit baffle can be used to limit and support the support flap to ensure the support performance of the support flap.

[0016] Preferably, a guide groove is axially formed on the outer wall of the main rod. A guide slider is arranged inside the support base. The guide slider is slidably connected to the guide groove. A locking mechanism is arranged between the main rod and the guide slider.

[0017] Through the above technical solution, the guide slider and the guide groove cooperate with each other to limit and guide the sliding of the support base.

[0018] Preferably, the guide groove is a T-shaped groove. The locking mechanism includes a locking bolt and a locking nut. The locking bolt passes through the notch of the guide groove, and both ends of the locking bolt are respectively connected to the guide slider and the support base. The locking nut is threadedly connected to the locking bolt to abut against the outer wall of the main rod, thereby driving the guide slider to abut against the inner wall of the guide groove.

[0019] Through the above technical solution, when the locking nut abuts against the outer wall of the main rod and the guide slider abuts against the inner wall of the guide chute, the height of the support base is fixed, and the support frame can stably support the servo motor. When the locking nut is separated from the outer wall of the main rod and the guide slider is separated from the inner wall of the chute, the support base can slide along the guide groove to adapt to servo motors of different models. Description of the Drawings

[0020] Figure 1 is a schematic structural diagram of the embodiment;

[0021] Figure 2 is Figure 1 an enlarged view of part A of

[0022] Figure 3 is Figure 1 an enlarged view of part B of

[0023] Reference numerals: 1, height limit pole; 2, storage groove; 3, support unit; 31, main pole; 32, lifting pole; 33, limiting mechanism; 4, adjusting gear; 5, transfer hole; 6, adjusting shaft; 7, insertion interface; 8, installation groove; 9, adjusting rack; 10, sliding groove; 11, limiting groove; 12, limiting sleeve; 13, limiting protrusion; 14, positioning protrusion; 15, positioning groove; 16, through hole; 17, installation screw; 18, buffer rubber; 19, support frame; 191, support base; 192, support flap; 20, limiting baffle; 21, guiding groove; 22, guiding slider; 23, locking mechanism; 231, locking bolt; 232, locking nut. Embodiment

[0024] The following further details the specific embodiments of the present invention in conjunction with the accompanying drawings, so that the technical solutions of the present invention are easier to understand and master.

[0025] A road height limit pole for municipal use, as Figures 1 to 3 shown, includes two support units 3 arranged side by side and a height limit pole 1 disposed between the two support units 3.

[0026] The support unit 3 includes a main pole 31, a lifting pole 32 slidably disposed inside the main pole 31, and a limiting mechanism 33 disposed between the main pole 31 and the lifting pole 32. A storage groove 2 is formed in the inner wall of the main pole 31, and an adjusting gear 4 is rotatably connected in the storage groove 2. A transfer hole 5 is formed in the outer wall of the main pole 31, and the transfer hole 5 communicates with the storage groove 2. An adjusting shaft 6 is rotatably connected in the transfer hole 5, the adjusting shaft 6 is coaxially connected to the adjusting gear 4, and a rectangular insertion interface 7 is formed at the end of the adjusting shaft 6. An installation groove 8 is formed in the outer wall of the lifting pole 32, the installation groove 8 extends along the axial direction of the lifting pole 32, and an adjusting rack 9 is fixedly connected in the installation groove 8. The side part of the adjusting gear 4 extends into the installation groove 8 and meshes with the adjusting rack 9.

[0027] A sliding groove 10 is formed in the outer wall of the main pole 31, the inner diameter of the sliding groove 10 is larger than the inner diameter of the transfer hole 5, and the sliding groove 10 is coaxially communicated with the transfer hole 5. A plurality of limiting grooves 11 are formed in the inner groove wall of the sliding groove 10 along the circumferential direction. The limiting mechanism 33 includes a limiting sleeve 12 slidably disposed outside the adjusting shaft 6. A limiting protrusion 13 is disposed on the outer wall of the limiting sleeve 12, and the limiting protrusion 13 is used to be caught in one of the limiting grooves 11. A positioning protrusion 14 is disposed on the inner wall of the limiting sleeve 12, and a positioning groove 15 is formed in the outer wall of the adjusting shaft 6 along the axial direction. The positioning protrusion 14 is slidably connected to the positioning groove 15.

[0028] A through hole 16 is radially formed in the outer wall of the limit sleeve 12. An installation screw 17 is inserted through the through hole 16. The threaded section of the installation screw 17 is threadedly connected to the positioning protrusion 14 to press and fix the positioning protrusion 14 and the limit sleeve 12. A buffer rubber 18 is fixedly connected to the surface of the positioning protrusion 14, and the buffer rubber 18 is pressed and fixed by the positioning protrusion 14 and the limit sleeve 12.

[0029] A support frame 19 is arranged on the outer wall of the main rod 31. The support frame 19 is located below the adjusting shaft 6. The support frame 19 includes a support base 191 arranged on the outer wall of the main rod 31 and a support flap 192 hinged to the outside of the support base 191. A limit baffle 20 is arranged at the outer bottom of the support base 191. The limit baffle 20 is located below the support flap 192. When the support flap 192 abuts against the limit baffle 20, the support flap 192 and the support base 191 are in the same plane. A guide groove 21 is axially formed in the outer wall of the main rod 31. A guide slider 22 is arranged inside the support base 191. The guide slider 22 is slidably connected to the guide groove 21. A locking mechanism 23 is arranged between the main rod 31 and the guide slider 22. The guide groove 21 is a T-shaped groove. The locking mechanism 23 includes a locking bolt 231 and a locking nut 232. The locking bolt 231 passes through the notch of the guide groove 21, and both ends of the locking bolt 231 are respectively connected to the guide slider 22 and the support base 191. The locking nut 232 is threadedly connected to the locking bolt 231 to abut against the outer wall of the main rod 31, thereby driving the guide slider 22 to abut against the inner wall of the guide groove 21.

[0030] Of course, the above are only typical examples of the present invention. In addition, the present invention can also have many other specific implementation manners. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. A road height limit frame for municipal use, comprising two support units (3) arranged side by side, and a height limit rod (1) arranged between the two support units (3). The support unit (3) includes a main rod (31), a lifting rod (32) slidably arranged inside the main rod (31), and a limiting mechanism (33) arranged between the main rod (31) and the lifting rod (32), characterized in that: A receiving groove (2) is formed in the inner wall of the main rod (31). An adjusting gear (4) is rotatably connected in the receiving groove (2). A transfer hole (5) is formed in the outer wall of the main rod (31). The transfer hole (5) communicates with the receiving groove (2). An adjusting shaft (6) is rotatably connected in the transfer hole (5). The adjusting shaft (6) is coaxially connected to the adjusting gear (4). A rectangular insertion port (7) is formed at the end of the adjusting shaft (6). An installation groove (8) is formed in the outer wall of the lifting rod (32). The installation groove (8) extends along the axial direction of the lifting rod (32). An adjusting rack (9) is fixedly connected in the installation groove (8). The side of the adjusting gear (4) extends into the installation groove (8) and meshes with the adjusting rack (9).

2. The height-limiting overhead road sign for municipal use according to claim 1, wherein: A sliding groove (10) is formed in the outer wall of the main rod (31). The inner diameter of the sliding groove (10) is larger than the inner diameter of the transfer hole (5), and the sliding groove (10) is coaxially communicated with the transfer hole (5). A plurality of limiting grooves (11) are formed in the inner groove wall of the sliding groove (10) in the circumferential direction. The limiting mechanism (33) includes a limiting sleeve (12) slidably arranged outside the adjusting shaft (6). A limiting protrusion (13) is arranged on the outer wall of the limiting sleeve (12). The limiting protrusion (13) is used for being clamped into one of the limiting grooves (11). A positioning protrusion (14) is arranged on the inner wall of the limiting sleeve (12). A positioning groove (15) is formed in the outer wall of the adjusting shaft (6) in the axial direction. The positioning protrusion (14) is slidably connected to the positioning groove (15).

3. The road height limit frame for municipal use according to claim 2, characterized in that: A through hole (16) is formed in the outer wall of the limiting sleeve (12) in the radial direction. An installation screw (17) is inserted through the through hole (16). The threaded section of the installation screw (17) is threadedly connected to the positioning protrusion (14) for pressing and fixing the positioning protrusion (14) and the limiting sleeve (12).

4. The road height limit frame for municipal use according to claim 3, characterized in that: A buffer rubber (18) is fixedly connected to the surface of the positioning protrusion (14), and the buffer rubber (18) is pressed and fixed by the positioning protrusion (14) and the limiting sleeve (12).

5. The height-limiting gantry for municipal roads according to claim 1, characterized in that: A support frame (19) is arranged on the outer wall of the main rod (31). The support frame (19) is located below the adjusting shaft (6).

6. The road height limit frame for municipal use according to claim 5, characterized in that: The support frame (19) includes a support base (191) arranged on the outer wall of the main rod (31), and a support flap (192) hinged outside the support base (191). A limiting baffle (20) is arranged at the outer bottom of the support base (191). The limiting baffle (20) is located below the support flap (192). When the support flap (192) abuts against the limiting baffle (20), the support flap (192) and the support base (191) are in the same plane.

7. The road height limit frame for municipal use according to claim 6, characterized in that: A guiding groove (21) is axially formed in the outer wall of the main rod (31). A guiding slider (22) is arranged inside the support base (191). The guiding slider (22) is slidably connected to the guiding groove (21). A locking mechanism (23) is arranged between the main rod (31) and the guiding slider (22).

8. A road height limit frame for municipal use according to claim 7, characterized in that: The guiding groove (21) is a T-shaped groove. The locking mechanism (23) includes a locking bolt (231) and a locking nut (232). The locking bolt (231) passes through the notch of the guiding groove (21). The two ends of the locking bolt (231) are respectively connected to the guiding slider (22) and the support base (191). The locking nut (232) is threadedly connected to the locking bolt (231) and is used to abut against the outer wall of the main rod (31), so as to drive the guiding slider (22) to abut against the inner wall of the guiding groove (21).

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