A traffic safety height and width limiting device

Abstract

The utility model relates to traffic safety facilities technical field discloses a traffic transportation safety height -limiting width -limiting device, including support plate, stand, slide sleeve of setting on the slide sleeve of stand and the crossbeam of connecting on the slide sleeve, its is provided with quick -release assembly and adjusting assembly, quick -release assembly includes first threaded rod, with the quick -release post of this rod thread cooperation, connecting rod and card block, through rotating first threaded rod drive quick -release post removes, via connecting rod drive card block pivoting, to realize and the quick joint or separation of fixed groove on crossbeam, adjusting assembly includes the sliding block and bolt of setting in the plurality of fixed holes of stand, through the second threaded rod of detachable drive sliding block, make the bolt extend to lock slide sleeve at different height. The utility model has solved the problem that the existing device dismouting is complex, height fixed, has realized the quick assembly and flexible height adjustment of not needing the tool, and the operation is convenient, has improved installation maintenance efficiency and use flexibility significantly.

Description

Technical Field

[0001] This utility model relates to the field of traffic safety facilities technology, and in particular to a height and width restriction device for traffic safety. Background Technology

[0002] Height and width restriction devices for transportation safety are important facilities in road traffic management. They are widely used at the entrances of urban roads, bridges, tunnels, culverts, and specific construction sections. Their main function is to physically limit the external dimensions of passing vehicles, thereby effectively ensuring the safety of structures above or on both sides of bridges and tunnels and preventing collisions caused by vehicles exceeding height or width limits.

[0003] Currently, most height and width restriction devices on the market adopt a fixed gantry structure. During installation, the connection between the crossbeam and the two side columns usually relies on flanges and high-strength bolts for fastening. Although this connection method can ensure the stability and reliability of the structure, its inherent defects gradually become apparent in practical applications, especially in situations requiring temporary installation or frequent adjustments.

[0004] Specifically, assembling or disassembling devices using bolted connections requires multiple workers and specialized tools such as torque wrenches and sockets. When performing installation or disassembly on roads with heavy traffic, the cumbersome procedures and extended operation time undoubtedly prolong traffic control periods and exacerbate congestion. Furthermore, for devices intended for recycling and reuse, repeated disassembly and assembly can easily lead to wear on bolts and threads, affecting the safety and reliability of subsequent uses.

[0005] Therefore, existing height and width restriction devices suffer from complex assembly processes, low installation efficiency, and insufficient flexibility, making them unsuitable for the requirements of modern traffic management for rapid response and efficient deployment.

[0006] Therefore, this utility model proposes a height and width restriction device for transportation safety to address the shortcomings of the prior art. Utility Model Content

[0007] In view of the problems of complex structural connections, cumbersome installation and disassembly processes, and low operation efficiency of existing height and width restriction devices for transportation safety, this utility model aims to provide a transportation safety height and width restriction device with an improved structure that can effectively solve the above problems.

[0008] This utility model provides a height and width restriction device for transportation safety, including a support plate, a column vertically fixedly connected to the support plate, a sliding sleeve slidably fitted on the outer wall of the column, and a crossbeam connected to the sliding sleeve; the device also includes a quick-release assembly for connecting the sliding sleeve and the crossbeam.

[0009] The quick-release assembly includes a fixed sleeve fixed to a sliding sleeve, with a fixing block fixed to the inner wall of the fixed sleeve. The quick-release assembly also includes a first threaded rod rotatably connected to the fixed sleeve, and a quick-release pin threadedly engaged with the first threaded rod. The quick-release pin slides axially along the fixed sleeve and is slidably engaged with the fixing block. A connecting rod is rotatably connected to the quick-release pin, and a first locking block and a second locking block are rotatably connected to the end of the connecting rod. The first and second locking blocks are pivotally connected to the fixed sleeve for engaging or disengaging with a fixing groove formed on a crossbeam.

[0010] Preferably, in order to provide a stable mounting base and optimize the force transmission path, a connecting post is fixedly connected to one side of the outer wall of the sliding sleeve, and the retaining sleeve of the quick-release assembly is fixedly connected to the connecting post.

[0011] Further preferred, to enhance the structural stability of the connection and form a stable triangular support structure, a reinforcing rib is fixedly connected between the sliding sleeve and the connecting column, which effectively improves the bending stiffness of the device.

[0012] Preferably, in order to give the device flexible high adaptability, the device also includes an adjustment component for selectively locking the slide at a plurality of preset positions along the length of the column.

[0013] In one specific embodiment of the adjustment assembly, multiple fixing holes are formed along the length of the outer wall of the column. The adjustment assembly includes a slide rail, a slider, and a pin respectively disposed inside the multiple fixing holes, and also includes a detachable second threaded rod. The second threaded rod can be inserted into any of the fixing holes to drive the slider inside to move.

[0014] Preferably, the slider is slidably mounted on the slide rail, and the rotation of the second threaded rod can drive the slider to move along the slide rail.

[0015] More preferably, the slider has an inclined groove. A connecting block is fixedly connected to the pin, and the connecting block slides within the groove. Through this engagement, the movement of the slider can cause the pin to extend out of the fixing hole and abut against the inner wall of the sleeve or retract into the fixing hole, thereby completing the locking or unlocking action.

[0016] Preferably, the device further includes a support beam, with both ends of the support beam connected between the connecting column and the crossbeam, to reinforce the overall structure of the height-limiting frame.

[0017] Preferably, a warning sign is also installed between the column and the support beam to provide a prominent safety reminder to drivers of passing vehicles.

[0018] This utility model has the following beneficial effects:

[0019] 1. This utility model solves the problems of complex structural connections, inconvenient assembly and disassembly, the need for multiple tools, and low operating efficiency of existing height and width limiting devices by setting up a quick-release assembly consisting of a first threaded rod, quick-release column, connecting rod, and locking block. It achieves the technical effect of modular rapid assembly and disassembly of the device without complex tools, greatly improving installation and maintenance efficiency, and facilitating transportation and storage.

[0020] 2. This utility model solves the problems of fixed height, difficulty in adjustment, and poor adaptability of existing height restriction devices by opening multiple fixing holes with built-in slider pin locking mechanisms on the column and driving them with a detachable second threaded rod. It achieves the technical effect of being able to quickly and accurately adjust the height restriction position and reliably lock it according to different road environments and traffic needs, significantly enhancing the flexibility and practicality of the device.

[0021] 3. This utility model, by setting up a support plate, column, sliding sleeve and reinforcing rib, forms a stable portal frame and triangular force-bearing structure, which solves the problems of thinness, instability and safety of traditional simple height restriction frame structures, and achieves the technical effect of stable overall structure, high bending stiffness and safe and reliable use. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of a height and width limiting device for transportation safety proposed in this utility model;

[0023] Figure 2 This is a schematic diagram of the quick-release component of a transportation safety height and width restriction device proposed in this utility model;

[0024] Figure 3 This is a schematic diagram of the first threaded rod portion of a transportation safety height and width limiting device proposed in this utility model;

[0025] Figure 4 This is a schematic diagram of the second threaded rod portion of a height and width limiting device for transportation safety proposed in this utility model.

[0026] Legend:

[0027] 1. Support plate; 2. Column; 3. Sliding sleeve; 4. Crossbeam; 5. Support beam; 6. Reinforcing rib; 7. Connecting column; 8. Quick-release assembly; 801. First threaded rod; 802. Fixing sleeve; 803. Fixing block; 804. Connecting rod; 805. First locking block; 806. Second locking block; 807. Fixing groove; 808. Quick-release column; 9. Adjustment assembly; 901. Second threaded rod; 902. Slide rail; 903. Slider; 904. Slide groove; 905. Pin; 906. Connecting block; 10. Warning sign. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0029] Example:

[0030] Please refer to Figures 1 to 4 This utility model provides a height and width restriction device for transportation safety, which aims to solve the problems of complex installation and disassembly and inconvenient height adjustment of existing traffic height and width restriction devices.

[0031] like Figure 1 As shown, the transportation safety height and width restriction device includes a support plate 1, with a column 2 vertically fixedly connected to the upper surface of the support plate 1. A sliding sleeve 3 is slidably fitted onto the outer wall of the column 2, and a crossbeam 4 is connected to the sliding sleeve 3. The basic frame of the device is supported by the support plate 1, with the column 2 serving as the vertical support. The sliding sleeve 3 can slide up and down along the axial direction of the column 2 to adjust the height of the height restriction structure. To achieve quick assembly and disassembly between the crossbeam 4 and the sliding sleeve 3, the device is equipped with a quick-release assembly 8. Figure 2 and Figure 3 As shown, a connecting post 7 is fixedly connected to one side of the outer wall of the sliding sleeve 3. A reinforcing rib 6 for enhancing structural rigidity is also fixedly connected between the sliding sleeve 3 and the connecting post 7. The quick-release assembly 8 is fixedly connected to the connecting post 7. The quick-release assembly 8 includes a fixing sleeve 802 fixedly connected to the connecting post 7. A fixing block 803 is fixed on the inner wall of the fixing sleeve 802.

[0032] The quick-release assembly 8 also includes a first threaded rod 801, which is rotatably connected to the end of the fixed sleeve 802 and its axial position remains fixed. The quick-release assembly 8 further includes a quick-release pin 808, which has an internal thread that mates with the first threaded rod 801, so that the quick-release pin 808 and the first threaded rod 801 are threadedly engaged. The quick-release pin 808 is slidably engaged with the fixed block 803. When the first threaded rod 801 rotates, the quick-release pin 808 slides back and forth along the axial direction of the fixed sleeve 802 under the drive of the first threaded rod 801. A connecting rod 804 is rotatably connected to the quick-release pin 808. A first locking block 805 and a second locking block 806 are rotatably connected to the end of the connecting rod 804. Both the first locking block 805 and the second locking block 806 are pivotally connected to the fixed sleeve 802. A fixing groove 807 is provided at the end of the crossbeam 4 for the first locking block 805 and the second locking block 806 to engage or disengage.

[0033] To allow for flexible adjustment of the height restriction position, this transportation safety height and width restriction device also includes an adjustment component 9. The adjustment component 9 is used to quickly and securely lock the sliding sleeve 3 at different height positions of the column 2; please refer to [the relevant documentation / reference]. Figure 1 and Figure 4 The structure of adjustment component 9 will be described in detail below:

[0034] The outer wall of the column 2 has multiple fixing holes for positioning along its length. The adjustment component 9 includes a slide rail 902, a slider 903 and a pin 905 respectively disposed inside each fixing hole. The slide rail 902 is fixedly installed on the inner wall of the fixing hole, and the slider 903 is slidably connected to the slide rail 902. The adjustment component 9 also includes a second threaded rod 901, which is detachably inserted into the selected fixing hole during use. The rotation of the second threaded rod 901 is used to drive the slider 903 inside the fixing hole into which it is inserted to move smoothly along the slide rail 902.

[0035] The slider 903 has an inclined groove 904 inside, and a connecting block 906 is fixedly connected to the pin 905. The connecting block 906 slides against the inner wall of the groove 904. In the assembled state, when the slider 903 moves, the connecting block 906 slides along the inclined groove 904, thereby converting the linear motion of the slider 903 into the extension and retraction motion of the pin 905. This causes the pin 905 to extend out of the fixing hole and abut against the inner wall of the sleeve 3 to lock the sleeve 3, or causes the pin 905 to retract into the fixing hole to release the lock on the sleeve 3.

[0036] Based on the above embodiments, the present invention may further include the following preferred technical solutions:

[0037] In a preferred embodiment, a connecting column 7 is fixedly connected to one side of the outer wall of the sliding sleeve 3, and the fixing sleeve 802 of the quick-release assembly 8 is fixedly connected to the connecting column 7. To further enhance the structural stability of the connection, a reinforcing rib 6 is also fixedly connected between the sliding sleeve 3 and the connecting column 7. In the specific structure of the adjusting assembly 9, the connecting block 906 is fixedly connected to one end of the pin 905, and the connecting block 906 slides within the groove 904 of the slider 903. To form a complete height and width limiting frame and provide safety warnings, the device also includes a support beam 5, with both ends of the support beam 5 connected between the connecting column 7 and the crossbeam 4, respectively. A warning sign 10 is also provided between the column 2 and the support beam 5.

[0038] The working principle of this utility model's transportation safety height and width restriction device is as follows:

[0039] When it is necessary to install or remove the crossbeam 4, the operator rotates the first threaded rod 801. Since the first threaded rod 801 and the quick-release pin 808 are threadedly engaged, the rotation of the first threaded rod 801 will drive the quick-release pin 808 to reciprocate along the axial direction of the fixed sleeve 802. During installation, the quick-release pin 808 is pushed forward, and the connecting rod 804 pushes the first locking block 805 and the second locking block 806 to pivot outward synchronously, so that they slide out of the fixed sleeve 802 and are locked into the fixing groove 807 of the crossbeam 4, thus achieving a firm lock. During disassembly, the first threaded rod 801 is rotated in the opposite direction, and the quick-release pin 808 moves backward. The connecting rod 804 pulls the first locking block 805 and the second locking block 806 to pivot inward, so that they are retracted from the fixing groove 807 into the fixed sleeve 802, thereby releasing the fixation to the crossbeam 4.

[0040] When the height limit needs to be adjusted, the operator first slides the sliding sleeve 3 along the column 2 to the target height, aligning the sliding sleeve 3 with a fixed hole on the column 2. Then, the operator inserts the second threaded rod 901 into the fixed hole and rotates it. The rotation of the second threaded rod 901 drives the slider 903 inside the fixed hole to move smoothly along the slide rail 902. Since the slider 903 has an inclined groove 904 inside, and the connecting block 906 slides in cooperation with the groove 904, the movement of the slider 903 will cause the pin 905, which is fixedly connected to the connecting block 906, to extend out of the fixed hole and abut against the inner wall of the sliding sleeve 3, thereby reliably locking the sliding sleeve 3 in the current position. When it is necessary to unlock, the second threaded rod 901 is rotated counterclockwise to drive the slider 903 to slide in the opposite direction, thereby driving the pin 905 back to the unlocked state and retracting into the fixed hole. At this time, the sliding sleeve 3 can slide freely along the column 2 again.

[0041] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A height and width restriction device for transportation safety, characterized in that, include: The support plate (1) and the column (2) vertically fixedly connected to the support plate (1) also include a sliding sleeve (3) slidably sleeved on the outer wall of the column (2), and a crossbeam (4) is connected to the sliding sleeve (3). The device also includes a quick-release assembly (8) for connecting the sliding sleeve (3) and the crossbeam (4), the quick-release assembly (8) including a fixing sleeve (802) fixed on the sliding sleeve (3), and a fixing block (803) fixed on the inner wall of the fixing sleeve (802). The quick-release assembly (8) further includes a first threaded rod (801) rotatably connected to the fixed sleeve (802), and a quick-release pin (808) threadedly engaged with the first threaded rod (801) and sliding along the axial direction of the fixed sleeve (802). The quick-release pin (808) is slidably fitted onto the fixing block (803); A connecting rod (804) is rotatably connected to the quick-release column (808). A first locking block (805) and a second locking block (806) are rotatably connected to the end of the connecting rod (804). The first locking block (805) and the second locking block (806) are pivotally connected to the fixing sleeve (802) for engaging or disengaging with the fixing groove (807) opened on the crossbeam (4).

2. The height and width restriction device for transportation safety according to claim 1, characterized in that, A connecting column (7) is fixedly connected to one side of the outer wall of the sliding sleeve (3), and the fixing sleeve (802) is fixedly connected to the connecting column (7).

3. The height and width restriction device for transportation safety according to claim 2, characterized in that, A reinforcing rib (6) is also fixedly connected between the sliding sleeve (3) and the connecting column (7).

4. The height and width restriction device for transportation safety according to claim 1, characterized in that, It also includes an adjustment assembly (9) for locking the sliding sleeve (3) at different height positions on the column (2).

5. The height and width restriction device for transportation safety according to claim 4, characterized in that, The column (2) has multiple fixing holes along its length on its outer wall. The adjustment assembly (9) includes a slide rail (902), a slider (903) and a pin (905) respectively disposed inside the multiple fixing holes. It also includes a second threaded rod (901) that can be detachably inserted into any of the fixing holes to drive the slider (903).

6. The height and width restriction device for transportation safety according to claim 5, characterized in that, The slider (903) is slidably disposed on the slide rail (902), and the rotation of the second threaded rod (901) drives the slider (903) to move along the slide rail (902).

7. The transportation safety height and width restriction device according to claim 6, characterized in that, An inclined groove (904) is provided inside the slider (903), and a connecting block (906) is fixedly connected to the pin (905). The connecting block (906) is slidably engaged in the groove (904) so ​​that when the slider (903) moves, it drives the pin (905) to extend out of the fixing hole and abut against the inner wall of the sleeve (3) or retract into the fixing hole.

8. The height and width restriction device for transportation safety according to claim 1, characterized in that, It also includes a support beam (5), the two ends of which are connected between the connecting column (7) and the crossbeam (4).

9. The height and width restriction device for transportation safety according to claim 8, characterized in that, A warning sign (10) is provided between the column (2) and the support beam (5).

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