Fixing tool for measuring length and width of railway prefabricated box girder

Abstract

The utility model discloses a fixing tool for measuring length and width of a railway prefabricated box girder, which belongs to the technical field of railway box girders and comprises a tubular dynamometer, a fixing ring is arranged at one end of the tubular dynamometer, a convenient connecting component is arranged on one side of the fixing ring, and a steel tape is connected inside the convenient connecting component. A positioning and pressing assembly is arranged at one end of the steel tape; according to the utility model, through the arrangement of the positioning and pressing assembly, the steel tape box body can be conveniently installed and fixed, the steel tape box body can be conveniently carried, manpower resources are saved, the use convenience of equipment is improved, the measurement efficiency is improved, when the steel tape is used for measurement, the steel tape can be rapidly and stably pressed, the reading accuracy is ensured, and the working efficiency is improved. And by arranging the convenient connecting assembly, the steel tape can be conveniently inserted into the positioning plate for installation, and the convenience and firmness of connection between the steel tape and the tubular dynamometer are ensured.

Description

Technical Field

[0001] This utility model belongs to the field of railway box girder technology, specifically relating to a fixed tool for measuring the length and width of prefabricated railway box girders. Background Technology

[0002] Reinforced concrete box girders are divided into precast box girders and cast-in-place box girders. Precast box girders, fabricated on an independent site and then erected using a bridge-building machine after the substructure is completed, can accelerate the project and save time. Cast-in-place box girders are mostly used for large continuous bridges. Commonly categorized by material, there are two main types: prestressed reinforced concrete box girders and steel box girders. Prestressed reinforced concrete box girders are constructed on-site and, in addition to longitudinal prestressing, some also have transverse prestressing. Steel box girders are generally fabricated in a factory and then transported to the site for installation; some are entirely steel structures, while others have a reinforced concrete pavement layer.

[0003] In the current railway precast box girder laying process, only a steel tape measure is used to measure its length and width. This is prone to inaccurate readings, requiring multiple adjustments to the length of the steel tape measure for recording the readings. Furthermore, it is difficult to position the steel tape measure in actual use, affecting the convenience of measurement and wasting human resources. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides a fixed fixture for measuring the length and width of precast railway box girders, characterized by convenient measurement and accurate data.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fixed tooling for measuring the length and width of precast railway box girders, including a tubular force gauge, one end of which is provided with a fixing ring, one side of which is provided with a convenient connection component, a steel tape measure is internally connected to the convenient connection component, and one end of the steel tape measure is provided with a positioning and clamping component.

[0006] Preferably, the positioning and clamping assembly includes a threaded rod, a U-shaped frame, a side mounting bracket, a fixing device, a clamping plate, a rubber pad, and an iron pad. One end of the steel measuring tape is provided with a fixing device, the fixing device contains a side mounting bracket, one end of the side mounting bracket is provided with a U-shaped frame, the upper end of the U-shaped frame is connected to a threaded rod, the bottom end of the threaded rod is provided with an iron pad, the bottom end of the iron pad is provided with a rubber pad, and the bottom end of the rubber pad is provided with a clamping plate.

[0007] Preferably, a light is provided on one side of the upper end of the U-shaped frame, and a battery is provided inside the upper end of the U-shaped frame corresponding to the light.

[0008] Preferably, the side mounting bracket is fixed between the U-shaped frame and the fixing device by bolts, and the side mounting bracket is provided with an arc-shaped handle on the side near the U-shaped frame. The threaded rod and the iron pad are connected by bearings.

[0009] Preferably, the fixing device includes a guide rod, a two-way lead screw, a fixed handwheel, and a movable clamping plate. The guide rod is provided inside one end of the side mounting bracket, a two-way lead screw is provided on one side of the guide rod, a movable clamping plate is provided between the guide rod and the two-way lead screw, and a fixed handwheel is fixed to the middle surface of the two-way lead screw.

[0010] Preferably, the convenient connection assembly includes a fixing sleeve, a clamping tooth block, a guide groove, a limiting spring, and a positioning plate. The fixing sleeve is sleeved on the surface of the fixing ring, a positioning plate is provided on one side of the fixing sleeve, a limiting spring is fixed inside the positioning plate, a clamping tooth block is provided at one end of the limiting spring, and a guide groove is provided inside the positioning plate corresponding to the clamping tooth block.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model, by setting a positioning and clamping component, can conveniently install and fix the steel tape measure box, and at the same time, it can be easily carried, saving manpower, improving the convenience of equipment use, improving measurement efficiency, and when using the steel tape measure for measurement, it can quickly and stably clamp the steel tape measure to ensure accurate readings and improve the quality of equipment use.

[0013] 2. By setting up a convenient connection component, this utility model allows for easy insertion of a steel tape measure into the positioning plate for installation, ensuring the convenience and firmness of its connection with the tubular force gauge, ensuring the stability of subsequent tensioning, and improving the measurement accuracy of precast box girders. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the positioning and clamping assembly structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the fixing device structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the convenient connection component structure of this utility model.

[0018] In the diagram: 1. Tubular force gauge; 2. Convenient connection assembly; 21. Fixing sleeve; 22. Clamping tooth block; 23. Guide groove; 24. Limiting spring; 25. Positioning plate; 3. Steel tape measure; 4. Positioning and clamping assembly; 41. Lighting lamp; 42. Threaded rod; 43. U-shaped frame; 44. Side mounting bracket; 45. Fixing device; 451. Guide rod; 452. Two-way screw; 453. Fixed handwheel; 454. Movable clamping plate; 46. Clamping plate; 47. Rubber pad; 48. Iron pad; 5. Fixing ring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1

[0021] Please see Figure 1-4 The present invention provides the following technical solution: a fixed tool for measuring the length and width of precast railway box girders, including a tubular force gauge 1, a fixing ring 5 at one end of the tubular force gauge 1, a convenient connection component 2 on one side of the fixing ring 5, a steel tape measure 3 connected inside the convenient connection component 2, and a positioning and clamping component 4 at one end of the steel tape measure 3.

[0022] Specifically, the positioning and clamping assembly 4 includes a threaded rod 42, a U-shaped frame 43, a side mounting bracket 44, a fixing device 45, a clamping plate 46, a rubber pad 47, and an iron pad 48. The steel tape measure 3 is provided with a fixing device 45 at one end, a side mounting bracket 44 is provided inside the fixing device 45, a U-shaped frame 43 is provided at one end of the side mounting bracket 44, a threaded rod 42 is connected to the upper end of the U-shaped frame 43, an iron pad 48 is provided at the bottom end of the threaded rod 42, a rubber pad 47 is provided at the bottom end of the iron pad 48, and a clamping plate 46 is provided at the bottom end of the rubber pad 47.

[0023] By adopting the above technical solution, during the measurement work, the tubular force gauge 1 is pulled to stretch the steel tape measure 3 and measure the length and width of the precast railway box girder template. While the tubular force gauge 1 is stretching the steel tape measure 3, the threaded rod 42 is rotated to move the iron pad 48 downward. The clamping plate 46 at the lower end of the iron pad 48 moves downward and clamps the steel tape measure 3. At this time, the tension value of the tubular force gauge 1 and the length reading of the steel tape measure 3 are read.

[0024] Specifically, a light 41 is provided on one side of the upper end of the U-shaped frame 43, and a battery is provided inside the upper end of the U-shaped frame 43 corresponding to the light 41.

[0025] By adopting the above technical solution, the steel tape measure 3 can be illuminated in dim environments, making it easier for staff to read the measurement and improving the effectiveness of the equipment.

[0026] Specifically, the side mounting bracket 44 is fixed between the U-shaped bracket 43 and the fixing device 45 by bolts. The side mounting bracket 44 is provided with an arc-shaped handle on the side near the U-shaped bracket 43. The threaded rod 42 and the iron pad block 48 are connected by bearings.

[0027] By adopting the above technical solution, it is convenient for staff to hold and use the side mounting bracket 44, improving the portability of the equipment and ensuring measurement efficiency.

[0028] Specifically, the fixing device 45 includes a guide rod 451, a two-way lead screw 452, a fixed handwheel 453, and a movable clamping plate 454. The guide rod 451 is provided inside one end of the side mounting bracket 44, the two-way lead screw 452 is provided on one side of the guide rod 451, the movable clamping plate 454 is provided between the guide rod 451 and the two-way lead screw 452, and the fixed handwheel 453 is fixed on the middle surface of the two-way lead screw 452.

[0029] By adopting the above technical solution, when measuring the length and width of precast railway box girders, one end of the steel tape measure 3 is first installed. The box body of the steel tape measure 3 is placed on the surface of the movable clamping plate 454. At the same time, the fixed handwheel 453 is rotated to drive the bidirectional screw 452 to rotate. At this time, the two sets of movable clamping plates 454 approach each other along the guide rod 451 and clamp and position the box body of the steel tape measure 3, ensuring that the box body of the steel tape measure 3 is easy and stable to install and improving the efficiency of equipment use.

[0030] In this embodiment, when measuring the length and width of a precast railway box girder, one end of the steel tape measure 3 is first installed. The box of the steel tape measure 3 is placed on the surface of the movable clamping plate 454. At the same time, the fixed handwheel 453 is rotated to drive the bidirectional screw 452 to rotate. At this time, the two sets of movable clamping plates 454 approach each other along the guide rod 451 and clamp and position the box of the steel tape measure 3, ensuring that the box of the steel tape measure 3 is easy and stable to install and improving the efficiency of the equipment.

[0031] During the measurement work, the tubular force gauge 1 is pulled to stretch the steel tape measure 3 and measure the length and width of the precast box girder template of the railway. While the tubular force gauge 1 is stretching the steel tape measure 3, the threaded rod 42 is rotated to move the iron pad 48 down. The clamping plate 46 at the lower end of the iron pad 48 moves down and clamps the steel tape measure 3. At this time, the tension value of the tubular force gauge 1 and the length reading of the steel tape measure 3 are read.

[0032] Example 2

[0033] The difference between this embodiment and embodiment 1 is that, specifically, the convenient connection component 2 includes a fixing sleeve 21, a clamping tooth block 22, a guide groove 23, a limiting spring 24, and a positioning plate 25. The fixing sleeve 21 is sleeved on the surface of the fixing ring 5. A positioning plate 25 is provided on one side of the fixing sleeve 21. A limiting spring 24 is fixed inside the positioning plate 25. A clamping tooth block 22 is provided at one end of the limiting spring 24. A guide groove 23 is opened inside the positioning plate 25 corresponding to the clamping tooth block 22.

[0034] In this embodiment, when in use: pull the steel tape measure 3 to engage it inside the positioning plate 25, and at the same time slide the pressing tooth block 22 along the guide groove 23 to compress the limiting spring 24. After the steel tape measure 3 is stably inserted into the positioning plate 25, release the pressing tooth block 22 to reset the limiting spring 24. At this time, the pressing tooth block 22 bites and presses one end of the steel tape measure 3 to ensure the firmness of the installation of one end of the steel tape measure 3.

[0035] The tube-type force gauge 1 of this utility model is a publicly available technology, and the selected model is LTZ-30.

[0036] The working principle and usage process of this utility model: When using this utility model to measure the length and width of precast railway box girders, first install one end of the steel tape measure 3, place one side of the box of the steel tape measure 3 on the surface of the movable clamping plate 454, and at the same time rotate the fixed handwheel 453 to drive the bidirectional lead screw 452 to rotate. At this time, the two sets of movable clamping plates 454 approach each other along the guide rod 451 and clamp and position the box of the steel tape measure 3, ensuring that the box of the steel tape measure 3 is easy and stable to install and improving the efficiency of the equipment.

[0037] Then pull the steel tape measure 3 to engage it inside the positioning plate 25. At the same time, slide the pressing tooth block 22 along the guide groove 23 to compress the limiting spring 24. When the steel tape measure 3 is stably inserted into the positioning plate 25, release the pressing tooth block 22 to reset the limiting spring 24. At this time, the pressing tooth block 22 bites and presses one end of the steel tape measure 3 to ensure the firmness of the installation of one end of the steel tape measure 3.

[0038] During measurement, the tubular force gauge 1 is pulled to stretch the steel tape measure 3 and measure the length and width of the precast railway box girder template. While the tubular force gauge 1 is stretching the steel tape measure 3, the threaded rod 42 is rotated to move the iron pad 48 downward. The clamping plate 46 at the lower end of the iron pad 48 moves downward and clamps the steel tape measure 3. At this time, the tension value of the tubular force gauge 1 and the length reading of the steel tape measure 3 are read. The length and width of the precast box girder are measured and the tension and length are recorded. Using the template value as a reference, the actual length and width of the precast box girder are measured. If the values ​​differ from the template values, the size of the data can be compared to determine whether the precast box girder is too large or too small, thus improving measurement efficiency, ensuring work quality, and saving human resources.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixed fixture for measuring the length and width of precast railway box girders, comprising a tubular force gauge (1), characterized in that: One end of the tubular force gauge (1) is provided with a fixing ring (5), and a convenient connection component (2) is provided on one side of the fixing ring (5). A steel tape measure (3) is connected inside the convenient connection component (2), and a positioning and clamping component (4) is provided at one end of the steel tape measure (3).

2. The fixing fixture for measuring the length and width of precast railway box girders according to claim 1, characterized in that: The positioning and clamping assembly (4) includes a threaded rod (42), a U-shaped frame (43), a side mounting bracket (44), a fixing device (45), a clamping plate (46), a rubber pad (47), and an iron pad (48). The steel tape measure (3) is provided with a fixing device (45) at one end. The fixing device (45) is provided with a side mounting bracket (44) inside. The side mounting bracket (44) is provided with a U-shaped frame (43) at one end. The threaded rod (42) is connected to the upper end of the U-shaped frame (43). The iron pad (48) is provided at the bottom end of the threaded rod (42). The rubber pad (47) is provided at the bottom end of the iron pad (48). The clamping plate (46) is provided at the bottom end of the rubber pad (47).

3. The fixing fixture for measuring the length and width of precast railway box girders according to claim 2, characterized in that: A light (41) is provided on one side of the upper end of the U-shaped frame (43), and a battery is provided inside the upper end of the U-shaped frame (43) corresponding to the light (41).

4. The fixing fixture for measuring the length and width of precast railway box girders according to claim 2, characterized in that: The side mounting bracket (44) is fixed between the U-shaped frame (43) and the fixing device (45) by bolts. The side mounting bracket (44) is provided with an arc-shaped handle on the side near the U-shaped frame (43). The threaded rod (42) and the iron pad (48) are connected by bearings.

5. A fixing fixture for measuring the length and width of precast railway box girders according to claim 2, characterized in that: The fixing device (45) includes a guide rod (451), a two-way lead screw (452), a fixed handwheel (453), and a movable clamping plate (454). The guide rod (451) is provided inside one end of the side mounting bracket (44), the two-way lead screw (452) is provided on one side of the guide rod (451), the movable clamping plate (454) is provided between the guide rod (451) and the two-way lead screw (452), and the fixed handwheel (453) is fixed on the middle surface of the two-way lead screw (452).

6. The fixing fixture for measuring the length and width of precast railway box girders according to claim 1, characterized in that: The convenient connection component (2) includes a fixing sleeve (21), a clamping tooth block (22), a guide groove (23), a limiting spring (24), and a positioning plate (25). The fixing sleeve (21) is sleeved on the surface of the fixing ring (5). A positioning plate (25) is provided on one side of the fixing sleeve (21). A limiting spring (24) is fixed inside the positioning plate (25). A clamping tooth block (22) is provided at one end of the limiting spring (24). A guide groove (23) is opened inside the positioning plate (25) corresponding to the clamping tooth block (22).

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