Railway bridge culvert height limiting guard frame clearance measuring device

Abstract

This utility model relates to the field of railway bridge and culvert height restriction protection frame measurement technology, and discloses a railway bridge and culvert height restriction protection frame clearance measurement device, including a two-way laser rangefinder. The two-way laser rangefinder is installed on an adjustment component via an installation assembly. The adjustment component consists of multiple sets of rods and limiting parts. The multiple sets of rods are interlocked to adjust the overall height. The limiting parts are used to restrict the distance between the multiple sets of rods. This railway bridge and culvert height restriction protection frame clearance measurement device, through the set adjustment component, extends the distance between the rods by pulling the rods. When locking is required, simply rotate the collar, and the collar can move along the outer wall of the rod. The collar abuts against the protrusion, causing the compression block to be squeezed and bend inward. The compression block can squeeze the rod, thereby fixing the distance between the two sets of rods, ensuring stability during measurement. It can be operated by a single person, and the overall operation is convenient and the measurement efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of railway bridge and culvert height restriction protection frame measurement technology, specifically a railway bridge and culvert height restriction protection frame clearance measurement device. Background Technology

[0002] Railway bridge and culvert height restriction protection frames are important equipment used to protect railway bridges and culverts. Their main function is to prevent vehicles, pedestrians and other objects from colliding with railway bridge and culvert equipment, thereby ensuring the safety of railway transportation. Height restriction protection frames are usually installed at road locations under railway bridges and culverts.

[0003] Currently, there are roughly two measurement methods: one is for two people to work together to measure the data using a measuring tape. One person places the zero end of the measuring tape at the bottom of the crossbeam of the height restriction frame and holds the measuring tape vertically with both hands, while the other person stretches the measuring tape to the ground and takes the data. This measurement method is only suitable for measuring height restriction frames with a clearance of about 2.5m and requires two people to work together. In windy weather, the measuring tape is easily bent, affecting normal extension, and the verticality cannot be guaranteed. Secondly, while one person can operate a unidirectional laser rangefinder to measure the clearance from the ground, it is inconvenient to place the rangefinder on the ground and align it with the bottom of the height restriction protection frame beam. The measuring personnel must squat or bend down and look up to find the light point. Due to the influence of sunlight or bad weather, it is difficult to determine the position of the rangefinder's light point. The measuring personnel experience extreme discomfort in their neck and eyes during each measurement, and the verticality of the rangefinder's light cannot be guaranteed. In particular, it is difficult to ensure that the beam of the circular tube height restriction protection frame is at its lowest point, making it difficult to guarantee the accuracy of the measurement data. Therefore, we propose a clearance measurement device for railway bridge and culvert height restriction protection frames. Utility Model Content

[0004] The purpose of this utility model is to provide a clearance measurement device for railway bridge and culvert height restriction protection frames to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a clearance measuring device for a railway bridge and culvert height restriction protection frame, comprising a bidirectional laser rangefinder, wherein the bidirectional laser rangefinder is mounted on an adjustment assembly via an installation component, the adjustment assembly consists of multiple sets of rods and a limiting part, the multiple sets of rods are interlocked to adjust the overall height, the limiting part is used to restrict the multiple sets of rods, and the outer wall of each set of rods is provided with anti-slip texture.

[0006] Preferably, the limiting part includes a compression block, which is fixed to the top of the rod. The outer wall of the compression block is provided with a protrusion, and the outer wall of the rod is threaded with a collar. The rods are interlocked, and the rods are extended by pulling them. When locking is required, the collar is rotated, and the collar moves along the outer wall of the rod. The collar abuts against the protrusion, causing the compression block to bend inward. The compression block can then compress the rods, thus fixing the two sets of rods together and ensuring stability during measurement. It can be operated by a single person, and the overall operation is convenient and the measurement efficiency is high.

[0007] Preferably, each set of rods is provided with a corresponding limiting part. Through the limiting part provided on each set of rods, multiple sections can be extended and fixed to meet the measurement of the height restriction protection frame for railway bridges and culverts of different heights.

[0008] Preferably, the installation assembly includes a fixing frame, and two sets of fixing frames are provided. The two sets of fixing frames are fixed together by bolts and nuts. A mounting bracket is fixed on the front of the left-side fixing frame. By clamping the two sets of fixing frames onto a rod and locking the two sets of fixing frames with bolts and nuts, the two sets of fixing frames are installed on the rod. Then, the bidirectional laser rangefinder is clipped onto the mounting bracket to complete the installation. The operation is convenient.

[0009] Preferably, the bidirectional laser rangefinder is clipped onto a mounting frame, which is equipped with a bubble level. During measurement, the measurement operation can be performed by observing that the bubble level and the electronic bubble of the bidirectional laser rangefinder are centered, effectively ensuring the accuracy of the measurement.

[0010] Compared with the prior art, this utility model provides a clearance measurement device for railway bridge and culvert height restriction protection frames, which has the following beneficial effects:

[0011] 1. This railway bridge and culvert height restriction protection frame clearance measurement device, through the set adjustment components, extends the distance between the rods by pulling them. When locking is required, simply rotate the collar, and the collar can move along the outer wall of the rod. The collar abuts against the protrusion, causing the compression block to be squeezed and bend inward. The compression block can then compress the rod, thus fixing the two sets of rods together and ensuring stability during measurement. It can be operated by a single person, and the overall operation is convenient and the measurement efficiency is high.

[0012] 2. The clearance measurement device for the height restriction protection frame of the railway bridge and culvert is equipped with a two-way laser rangefinder and a bubble level on the pole through an installation component. During measurement, the measurement operation can be carried out by observing that the bubble level and the electronic bubble of the two-way laser rangefinder are centered, which effectively ensures the accuracy of the measurement. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall front view of the present invention;

[0014] Figure 2 This is a schematic diagram of the state structure of the present invention, excluding the bidirectional laser rangefinder and the bubble level.

[0015] Figure 3 This is an exploded view of the installation components of this utility model;

[0016] Figure 4 This is a schematic diagram of the adjustment component structure of this utility model;

[0017] Figure 5 This is a cross-sectional view of the connection between the rod body and the limiting part of this utility model.

[0018] In the diagram: 1. Two-way laser rangefinder; 2. Mounting assembly; 21. Fixing bracket; 22. Bolt; 23. Nut; 24. Mounting bracket; 3. Adjustment assembly; 31. Rod; 32. Limiting part; 321. Extrusion block; 322. Protrusion; 323. Collar; 4. Bubble level; 5. Anti-slip texture. Detailed Implementation

[0019] like Figures 1-5 As shown, this utility model provides a technical solution: a clearance measuring device for a railway bridge and culvert height restriction protection frame, including a two-way laser rangefinder 1. The two-way laser rangefinder 1 is installed on an adjustment assembly 3 via an installation component 2. The adjustment assembly 3 consists of multiple sets of rods 31 and a limiting part 32. The multiple sets of rods 31 are interlocked to adjust the overall height. The limiting part 32 is used to restrict the distance between the multiple sets of rods 31. The outer wall of each set of rods 31 is provided with anti-slip textures 5, which can effectively improve the anti-slip effect.

[0020] The limiting part 32 includes a pressing block 321, which is fixed to the top of the rod 31. The outer wall of the pressing block 321 is provided with a protrusion 322. The outer wall of the rod 31 is threadedly connected with a collar 323. The rods 31 are interlocked. By pulling the rods 31, the rods 31 are extended. When locking is required, simply rotate the collar 323. The collar 323 can move along the outer wall of the rod 31. The collar 323 abuts against the protrusion 322, causing the pressing block 321 to be pressed and bent inward. The pressing block 321 can then press the rods 31, thereby fixing the two sets of rods 31 together, ensuring stability during measurement. It can be operated by a single person, and the overall operation is convenient and the measurement efficiency is high.

[0021] Each set of poles 31 is equipped with a corresponding limiting part 32. Through the limiting part 32 on each set of poles 31, multiple sections can be extended and fixed to meet the measurement requirements of the height restriction protection frame for railway bridges and culverts of different heights.

[0022] Mounting assembly 2 includes a mounting bracket 21, which has two sets. The two sets of mounting brackets 21 are fixed together by bolts 22 and nuts 23. A mounting bracket 24 is fixed to the front of the left mounting bracket 21. By clamping the two sets of mounting brackets 21 onto a rod 31 and locking the two sets of mounting brackets 21 with bolts 22 and nuts 23, the two sets of mounting brackets 21 can be installed on the rod 31. Then, the bidirectional laser rangefinder 1 is clipped onto the mounting bracket 24, and the installation is completed. The operation is convenient.

[0023] The bidirectional laser rangefinder 1 is clipped onto the mounting bracket 24, which is equipped with a bubble level 4. During measurement, the measurement operation can be performed by observing that the electronic bubble level of the bubble level 4 and the bidirectional laser rangefinder 1 are centered, which effectively ensures the accuracy of the measurement.

[0024] In this utility model, during use, the corresponding rod 31 is pulled out as needed, causing multiple sets of rods 31 to extend as a whole. This allows the top of the top rod 31 to contact the bottom of the railway bridge and culvert height restriction protection frame, and the bottom of the bottom rod 31 to contact the ground, thus completing the adjustment. After adjustment, simply rotate the collar 323, which moves along the outer wall of the rod 31. The collar 323 contacts the protrusion 322, causing the compression block 321 to be compressed and bend inward. The compression block 321 then compresses the rod 31, fixing the two sets of rods 31 together and ensuring stability during measurement.

[0025] During measurement, the measurement operation can be carried out by observing that the electronic bubble of the bubble level 4 and the two-way laser rangefinder 1 are centered, which effectively ensures the accuracy of the measurement.

[0026] After the measurement is completed, simply rotate the collar 323 in the opposite direction to release the lock on the rod 31, and the rod 31 can be retracted, making it easy for the operator to carry.

[0027] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A railway bridge culvert height protection frame clearance measuring device comprising a bidirectional laser range finder (1), characterized in that: The bidirectional laser rangefinder (1) is mounted on the adjustment assembly (3) via the mounting assembly (2). The adjustment assembly (3) consists of multiple sets of rods (31) and a limiting part (32). The multiple sets of rods (31) are interlocked to adjust the overall height. The limiting part (32) is used to restrict the multiple sets of rods (31).

2. The clearance measuring device for height limiting guard frame of railway bridge and culvert according to claim 1, characterized in that: The limiting part (32) includes a pressing block (321), which is fixed to the top of the rod (31). The outer wall of the pressing block (321) is provided with a protrusion (322), and the outer wall of the rod (31) is threaded with a collar (323).

3. The clearance measuring device for height limiting guard frame of railway bridge and culvert according to claim 2, characterized in that: Each rod (31) has anti-slip texture (5) on its outer wall.

4. The device for measuring the clearance of height-limiting guard frames of railway bridges and culverts according to claim 1, characterized in that: Each rod (31) is provided with a corresponding limiting part (32).

5. The height clearance measuring device for a height guard of a railway bridge or culvert according to claim 1, characterized in that: The mounting assembly (2) includes a mounting bracket (21), which is provided in two sets. The two sets of mounting brackets (21) are fixed together by bolts (22) and nuts (23). A mounting bracket (24) is fixed on the front of the mounting bracket (21) on the left side.

6. The device for measuring the clearance of a height-limiting protective frame of a railway bridge or culvert according to claim 5, characterized in that: The bidirectional laser rangefinder (1) is snapped onto the mounting bracket (24), and a bubble level (4) is installed on the mounting bracket (24).

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