Expansion and shrinkage degree detection device of key bar type expansion shaft

Abstract

The utility model discloses an expansion degree detection device for a key bar type expansion shaft, and relates to the technical field of expansion shaft detection. Comprising an expansion shaft body, an expansion key is arranged on one side of the expansion shaft body, a detection mechanism is arranged on one side of the expansion shaft body and used for detecting the expansion degree of the expansion shaft, and the detection mechanism comprises a sliding rail. Through the arrangement of the detection mechanism and the fixing mechanism, in the using process, firstly, the expansion shaft body is inserted into the expansion key and fixed to the fixing mechanism, then the first sliding plate is manually operated to adjust the position of the mounting plate under the action of the sliding rail, and then a crank is manually rotated to drive the two-way screw rod to move; when the expansion shaft body works, the detection plate drives the sliding column to move, the indication plate moves along the detection rod, observation and recording are carried out through the scales, high-precision measurement of the expansion degree of the expansion shaft can be achieved through the device, and use limitation is reduced.

Description

Technical Field

[0001] This utility model relates to the field of shaft expansion detection technology, specifically a device for detecting the expansion and contraction of a key-bar type shaft. Background Technology

[0002] For example, a key-bar type air shaft coaxiality detection device, disclosed in patent publication number CN110940258A, includes a frame, an air shaft driven support wheel assembly, an air shaft active rotating support wheel assembly, an air shaft driven support wheel assembly lateral movement device, a first coaxiality detection device, a second coaxiality detection device, and a control panel. The upper side of the frame is equipped with an air shaft active rotating support wheel assembly that can cooperate with one end of the air shaft. By setting the first and second coaxiality detection devices on the upper side of the frame, the coaxiality and surface smoothness of both ends of the air shaft can be automatically detected. The lateral movement device for the air shaft driven support wheel assembly allows for control of the lateral movement of the air shaft active rotating support wheel assembly, facilitating control of the distance between them. This device can detect air shafts of various models and lengths, improving detection efficiency, increasing detection accuracy, and reducing manual labor intensity.

[0003] However, the aforementioned equipment is inconvenient to test the expansion and contraction of the air shaft during use due to its internal air shaft design, which limits its use and reduces work efficiency. Therefore, we propose a more convenient and practical testing device to meet the usage requirements. Utility Model Content

[0004] The purpose of this invention is to provide a device for detecting the expansion and contraction of a key-bar type expansion shaft, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a key-bar type expansion shaft expansion degree detection device, comprising an expansion shaft body, an expansion key provided on one side of the expansion shaft body, and a detection mechanism provided on one side of the expansion shaft body for detecting the expansion degree of the expansion shaft. The detection mechanism includes a slide rail, a first sliding plate slidably connected to the top of the slide rail, a mounting plate fixedly connected to the top of the first sliding plate, a fixing component provided on one side of the top of the mounting plate, and a detection component provided on the other side. A fixing mechanism is provided on one side of the detection mechanism for fixing the expansion shaft body.

[0006] Furthermore, the fixing component includes a sliding block, and a through hole is provided on one side of the mounting plate. A bidirectional screw is rotatably connected in the through hole, and both ends of the bidirectional screw are screwed to the sliding block. A crank handle is fixedly connected to one end of the bidirectional screw.

[0007] Furthermore, the detection component includes a fixed plate connected to a sliding block. A through hole is provided on one side of the fixed plate, and a sliding column is slidably connected inside the through hole. A detection plate is fixedly connected to one end of the sliding column.

[0008] Furthermore, detection rods are fixedly connected to both sides of the fixed plate, and indicator plates are slidably connected to the outer walls of the detection rods. The indicator plates are connected to the sliding columns, and the outer walls of the detection rods are engraved with scales.

[0009] Furthermore, the fixing mechanism includes a second sliding plate, which is slidably connected to a slide rail. A fixing frame is fixedly connected to the top of the second sliding plate, and a sliding frame is slidably connected to the inner wall of one side of the fixing frame.

[0010] Furthermore, a through hole is provided at the center of the top of the fixed frame, and a lead screw is screwed into the through hole. One end of the lead screw is rotatably connected to the sliding frame, and the other end is fixedly connected to a control ring. A fixed ring is fixedly connected to one side of the sliding frame.

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

[0012] This key-bar type expansion shaft expansion degree detection device, through the setting of a detection mechanism and a fixing mechanism, first inserts the expansion shaft body into the expansion key and fixes it with the fixing mechanism. Then, manually operate the first sliding plate to adjust the position of the mounting plate under the action of the slide rail. Next, manually turn the crank to drive the bidirectional screw to move, so that the sliding block drives the fixing plate to move, so that the detection plate and the expansion shaft body come into contact. When the expansion shaft body is working, the detection plate drives the sliding column to move, so that the indicator plate moves along the detection rod, and the readings are observed and recorded through the scale. The device can achieve high-precision measurement of the expansion shaft expansion degree, reduce usage limitations, improve work efficiency, and is highly practical and suitable for promotion.

[0013] Meanwhile, the fixing mechanism ensures that the expansion shaft will not move or loosen due to external forces during the testing process, thereby guaranteeing the accuracy and safety of the testing and adapting to expansion shafts of different lengths. Attached Figure Description

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

[0015] Figure 2 This is a schematic diagram of the detection mechanism structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the fixing mechanism of this utility model.

[0017] In the diagram: 1. Expansion shaft body; 2. Expansion key; 3. Detection mechanism; 301. Slide rail; 302. First sliding plate; 303. Mounting plate; 304. Sliding block; 305. Bidirectional screw; 306. Handle; 307. Fixing plate; 308. Sliding column; 309. Detection plate; 310. Indicator plate; 311. Detection rod; 312. Scale; 4. Fixing mechanism; 401. Second sliding plate; 402. Fixing frame; 403. Sliding frame; 404. Lead screw; 405. Control ring; 406. Fixing ring. Detailed Implementation

[0018] 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.

[0019] During the use of the expansion shaft, testing equipment is required. The testing equipment provided by this utility model is specifically designed for testing the expansion and contraction of the expansion shaft during its use. When using this equipment for testing, it is necessary to ensure a stable connection between the expansion shaft body 1 and the testing mechanism 3 to prevent shaking or detachment during the testing process, thereby ensuring the accuracy of the measurement results. Before testing, it should be checked whether the equipment is suitable for the current working environment. During the testing process, operators should wear appropriate safety protective equipment, such as gloves and goggles, to prevent accidents. During the testing process, the test data should be recorded in detail and necessary analysis should be performed to promptly detect any abnormalities in the expansion and contraction of the expansion shaft and take appropriate measures.

[0020] like Figures 1-3 As shown, this utility model provides a technical solution: a key-bar type expansion shaft expansion degree detection device, including an expansion shaft body 1, an expansion key 2 is provided on one side of the expansion shaft body 1, and a detection mechanism 3 is provided on one side of the expansion shaft body 1 for detecting the expansion degree of the expansion shaft. The detection mechanism 3 includes a slide rail 301, a first sliding plate 302 is slidably connected to the top of the slide rail 301, and a mounting plate 303 is fixedly connected to the top of the first sliding plate 302. A fixing component is provided on one side of the top of the mounting plate 303, and a detection component is provided on the other side. A fixing mechanism 4 is provided on one side of the detection mechanism 3 for fixing the expansion shaft body 1.

[0021] like Figure 2As shown, the fixing component includes a sliding block 304. A through hole is provided on one side of the mounting plate 303. A bidirectional screw 305 is rotatably connected in the through hole. Both ends of the bidirectional screw 305 are screwed to the sliding block 304. A crank 306 is fixedly connected to one end of the bidirectional screw 305. The detection component includes a fixing plate 307. The fixing plate 307 is connected to the sliding block 304. A through hole is provided on one side of the fixing plate 307. A sliding column 308 is slidably connected in the through hole. A detection plate 309 is fixedly connected to one end of the sliding column 308. Detection rods 311 are fixedly connected to both sides of the fixing plate 307. An indicator plate 310 is slidably connected to the outer wall of the detection rod 311. The indicator plate 310 is connected to the sliding column 308. A scale 312 is engraved on the outer wall of the detection rod 311.

[0022] It should be noted that during use, firstly, the expansion shaft body 1 is inserted into the expansion key 2 and fixed with the fixing mechanism 4. Then, the first sliding plate 302 is manually operated to adjust the position of the mounting plate 303 under the action of the slide rail 301. Next, the crank handle 306 is manually turned to drive the bidirectional screw 305 to move, so that the sliding block 304 drives the fixing plate 307 to move, so that the detection plate 309 contacts the expansion shaft body 1. When the expansion shaft body 1 is working, the detection plate 309 drives the sliding column 308 to move, so that the indicator plate 310 moves along the detection rod 311, and is observed and recorded through the scale 312. The detection mechanism 3 can adapt to expansion shafts of different specifications and sizes, easily realize the expansion and contraction detection of different expansion shafts, and improve the versatility and practicality of the equipment.

[0023] like Figure 3 As shown, the fixing mechanism 4 includes a second sliding plate 401, which is slidably connected to the slide rail 301. A fixing frame 402 is fixedly connected to the top of the second sliding plate 401, and a sliding frame 403 is slidably connected to the inner wall of one side of the fixing frame 402. A through hole is opened in the center of the top of the fixing frame 402, and a screw rod 404 is screwed into the through hole. One end of the screw rod 404 is rotatably connected to the sliding frame 403, and the other end is fixedly connected to a control ring 405. A fixing ring 406 is fixedly connected to one side of the sliding frame 403.

[0024] It should be noted that during use, the second sliding plate 401 first passes through the position of the fixed frame 402 under the action of the slide rail 301. Then, the expansion shaft body 1 is inserted into the fixed ring 406. Then, the control ring 405 is manually rotated to drive the lead screw 404 to move, so that the sliding frame 403 moves along the fixed frame 402. The height of the sliding frame 403 is adjusted. The fixing mechanism 4 ensures that the expansion shaft will not move or loosen due to external force during the testing process, thereby ensuring the accuracy and safety of the test and adapting to expansion shafts of different lengths.

[0025] During use, the expansion shaft body 1 is first inserted into the expansion key 2. Then, the second sliding plate 401 passes through the position of the fixed frame 402 under the action of the slide rail 301. Next, the expansion shaft body 1 is inserted into the fixed ring 406. Then, the control ring 405 is manually rotated to drive the lead screw 404 to move, so that the sliding frame 403 moves along the fixed frame 402. The height of the sliding frame 403 is adjusted, and the first sliding plate 302 is manually operated to adjust the position of the mounting plate 303 under the action of the slide rail 301. Then, the rocker handle 306 is manually rotated to drive the bidirectional screw 305 to move, so that the sliding block 304 drives the fixed plate 307 to move, so that the detection plate 309 and the expansion shaft body 1 come into contact. When the expansion shaft body 1 is working, the detection plate 309 drives the sliding column 308 to move, so that the indicator plate 310 moves along the detection rod 311, and the observation and recording are made through the scale 312. The device can realize high-precision measurement of the expansion shaft expansion degree, reduce usage limitations, and improve work efficiency.

[0026] 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 embodiments and their equivalents.

Claims

1. A device for detecting the expansion and contraction of a key-bar type expansion shaft, comprising an expansion shaft body (1), characterized in that: An expansion key (2) is provided on one side of the expansion shaft body (1), and a detection mechanism (3) is provided on one side of the expansion shaft body (1) for detecting the expansion and contraction of the expansion shaft. The detection mechanism (3) includes a slide rail (301), a first sliding plate (302) is slidably connected to the top of the slide rail (301), and an mounting plate (303) is fixedly connected to the top of the first sliding plate (302). A fixing component is provided on one side of the top of the mounting plate (303), and a detection component is provided on the other side. A fixing mechanism (4) is provided on one side of the detection mechanism (3) for fixing the expansion shaft body (1).

2. The expansion and contraction detection device for a key-bar type expansion shaft according to claim 1, characterized in that: The fixing component includes a sliding block (304), and a through hole is provided on one side of the mounting plate (303). A bidirectional screw (305) is rotatably connected in the through hole. Both ends of the bidirectional screw (305) are screwed to the sliding block (304). A crank (306) is fixedly connected to one end of the bidirectional screw (305).

3. The expansion and contraction detection device for a key-bar type expansion shaft according to claim 1, characterized in that: The detection component includes a fixed plate (307), which is connected to a sliding block (304). A through hole is provided on one side of the fixed plate (307), and a sliding column (308) is slidably connected in the through hole. A detection plate (309) is fixedly connected to one end of the sliding column (308).

4. The expansion and contraction detection device for a key-bar type expansion shaft according to claim 3, characterized in that: The fixed plate (307) is fixedly connected to both sides of the detection rod (311), and the outer wall of the detection rod (311) is slidably connected to the indicator plate (310). The indicator plate (310) is connected to the sliding column (308), and the outer wall of the detection rod (311) is engraved with a scale (312).

5. The expansion and contraction detection device for a key-bar type expansion shaft according to claim 1, characterized in that: The fixing mechanism (4) includes a second sliding plate (401), which is slidably connected to the slide rail (301). A fixing frame (402) is fixedly connected to the top of the second sliding plate (401), and a sliding frame (403) is slidably connected to the inner wall of one side of the fixing frame (402).

6. The expansion and contraction detection device for a key-bar type expansion shaft according to claim 5, characterized in that: The fixed frame (402) has a through hole at the top center, and a screw rod (404) is screwed into the through hole. One end of the screw rod (404) is rotatably connected to the sliding frame (403), and the other end is fixedly connected to a control ring (405). A fixed ring (406) is fixedly connected to one side of the sliding frame (403).

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