Device for measuring inner diameter and outer diameter of seamless steel tube
By designing a seamless steel pipe measuring device including measuring plates, fixed blocks, slide rods, conical blocks, trapezoidal blocks and arc plates, the problem of inaccurate measurement caused by the inability to fix the steel pipe is solved, and the stable fixation of the steel pipe and the accuracy of the inner and outer diameter measurement are achieved.
Patent Information
- Application Number
- CN202421893256.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-07
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-08-07
AI Technical Summary
The existing seamless steel pipe measurement devices cannot effectively fix the steel pipe, resulting in inconvenient measurement of the inner diameter and prone to deviation in readings.
A device including a measuring plate, a fixed block, a slider, a tapered block, a trapezoidal block and a arc plate is designed. Through the cooperation of the slider and a spring, the arc plate is made close to the inner wall of the steel pipe, and the interaction of the tapered block and the trapezoidal block is fixed to the steel pipe, and the limiting device ensures the position of the extrusion plate.
Effectively fix the steel pipe to avoid dislocation of the steel pipe, ensure the accuracy and reliability of inner and outer diameter measurements, and reduce reading deviations.
Smart Images
Figure CN222964574U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of seamless steel pipe inner and outer diameter measuring devices, in particular to a seamless steel pipe inner and outer diameter measuring device. Background Technique
[0002] A measuring device is a device used to measure the length or width of an object. When measuring a seamless steel pipe, a measuring device is often used for measurement. One end of the steel pipe is sleeved on the measuring device, and readings are taken through a clamping plate, thereby measuring the inner and outer diameters of the steel pipe.
[0003] The inventor found during daily use of the measuring device that the existing measuring device directly sleeves the steel pipe on the surface of the fixed block for measurement. Since there is no fixing component on the surface of the fixed block, the steel pipe cannot be fixed on the surface of the fixed block, resulting in the steel pipe moving during measurement, making it inconvenient to measure the inner diameter of the steel pipe, leading to deviation in readings, and thus causing an impact. Content of the Utility Model
[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and a seamless steel pipe inner and outer diameter measuring device is proposed.
[0005] To achieve the above purpose, the utility model adopts the following technical scheme: A seamless steel pipe inner and outer diameter measuring device includes a measuring plate. A rectangular plate is fixedly connected to the upper top of the measuring plate. A telescopic rod is fixedly connected to the side of the rectangular plate. A spring is sleeved on the surface of the telescopic rod. One end of the telescopic rod is fixedly connected to a pressing plate. A scale is arranged on the surface of the measuring plate. A fixed block is fixedly connected to the upper top of the measuring plate. A fixing device is arranged inside the fixed block. A handle is fixedly connected to the bottom of the measuring plate. A limiting device is fixedly connected to the side of the rectangular plate. The fixing device includes a circular groove opened inside the fixed block. A sliding rod is slidably connected to the surface of the measuring plate. A conical block is fixedly connected to one end of the sliding rod. A sliding rod is slidably connected to the inner wall of the circular groove. A trapezoidal block is fixedly connected to one end of the sliding rod. The trapezoidal block is arranged inside the circular groove. The other end of the sliding rod is fixedly connected to an arc plate.
[0006] The effects achieved by the above components are as follows: After the steel pipe is sleeved on the surface of the fixed block, the sliding rod is squeezed into the fixed block, so that the conical block squeezes the trapezoidal block. Thus, under the action of the sliding rod, the arc plate moves outwards, and then the steel pipe is fixed on the surface of the measuring plate for measurement. When it is necessary to measure the inner and outer diameters of the gear of the steel pipe, the steel pipe is sleeved on the surface of the fixed block. Under the influence of the fixing device, the steel pipe is fixed on the surface of the measuring plate. Under the action of the spring and the telescopic rod, the pressing plate is closely attached to the outer wall of the steel pipe. When the steel pipe is removed from the surface of the measuring plate, under the action of the limiting device, the pressing plate is limited, and then it is convenient to read the inner and outer diameter dimensions of the steel pipe.
[0007] Preferably, the sliding rod penetrates through the handle. A first spring is sleeved on the surface of the sliding rod. A clamping rod is inserted into the side surface of the handle. The two ends of the first spring are respectively fixedly connected to the surface of the handle and the end of the sliding rod away from the handle.
[0008] The effects achieved by the above components are as follows: Under the action of the first spring, when it is not necessary to push out the arc plate, the conical block can be reset, thus avoiding the phenomenon that the conical block always squeezes the trapezoidal block.
[0009] Preferably, a second spring is fixedly connected to the side surface of the trapezoidal block. The other end of the second spring is fixedly connected to the inner wall of the circular groove. The second spring is sleeved on the surface of the sliding rod.
[0010] The effects achieved by the above components are as follows: Under the action of the second spring, after the conical block moves away from the trapezoidal block, the trapezoidal block can be reset under the elastic force of the second spring.
[0011] Preferably, a circular strip is fixedly connected to the side surface of the trapezoidal block. The circular strip is a rubber strip.
[0012] The effects achieved by the above components are as follows: Under the action of the circular strip, the phenomenon of rigid contact between the conical block and the trapezoidal block will not occur, avoiding the phenomenon that the conical block and the trapezoidal block collide with each other and are damaged.
[0013] Preferably, a rectangular strip is fixedly connected to the surface of the arc plate. The rectangular strip is a rubber strip.
[0014] The effects achieved by the above components are as follows: Under the action of the rectangular bar, the arc plate can closely adhere to the inner wall of the steel pipe, avoiding the phenomenon of steel pipe displacement. When fixing the steel pipe, the sliding rod is pushed into the circular groove, causing the conical block to squeeze the trapezoidal block, so that the sliding rod extends outwards, and then the arc plate closely adheres to the inner wall of the steel pipe. When it moves to the appropriate position, the clamping rod is inserted into the inside of the sliding rod for fixation. Under the action of the rectangular bar, the arc plate can closely adhere to the inner wall of the steel pipe, avoiding the phenomenon of steel pipe displacement. Under the action of the circular bar, there is no rigid contact between the conical block and the trapezoidal block, avoiding the phenomenon of damage caused by the mutual impact of the conical block and the trapezoidal block. After the reading is completed, the clamping rod is pulled out. Under the action of the first spring, when it is not necessary to push out the arc plate, the conical block can be reset, thus avoiding the phenomenon of the conical block continuously squeezing the trapezoidal block. Under the action of the second spring, after the conical block moves away from the trapezoidal block, the trapezoidal block can be reset under the elastic force of the second spring, thereby achieving the fixing effect.
[0015] Preferably, the limiting device includes a steel wire rope fixedly connected to one end of the telescopic rod. A wire roller is rotatably connected to the surface of the sliding rod. The two steel wire ropes are wound in a reverse direction on the surface of the wire roller. A clamping rod is inserted into the side surface of the handle, and the clamping rod is inserted into the inside of the wire roller.
[0016] The effects achieved by the above components are as follows: Under the action of the clamping rod, after the pressing plate presses against the outer wall of the steel pipe, the telescopic rod can be restricted, thereby avoiding the phenomenon that the telescopic rod is squeezed and moved by the spring when the steel pipe is removed.
[0017] Preferably, a clamping ring is fixedly connected to the side surface of the measuring plate, and the steel wire rope is slidably connected inside the clamping ring.
[0018] The effects achieved by the above components are as follows: Under the action of the clamping ring, the steel wire rope does not directly contact the measuring plate, avoiding the phenomenon that the steel wire rope is worn and broken.
[0019] Preferably, a third spring is sleeved on the surface of the clamping rod, and the two ends of the third spring are respectively fixedly connected to the side surface of the handle and the end of the clamping rod away from the handle.
[0020] The effects achieved by the above components are as follows: Under the action of the third spring, the clamping rod can be inserted into the interior of the wire roller in a self-locking manner. Pull the clamping rod outwards to separate the clamping rod from the wire roller. Then, under the action of the spring, the steel wire rope is released. When the pressing plate presses against the surface of the steel pipe, under the action of the third spring, the clamping rod can be inserted into the interior of the wire roller in a self-locking manner. After the steel pipe is lowered, take readings. When collecting, pull the clamping rod outwards to separate the clamping rod from the wire roller, press the pressing plate towards the rectangular plate, and at the same time rotate the wire roller to wind the steel wire rope around the surface of the wire roller. When the pressing plate moves to a certain position, under the action of the third spring, the clamping rod can be inserted into the interior of the wire roller in a self-locking manner, thus achieving the limiting effect.
[0021] Compared with the prior art, the advantages and positive effects of the present utility model are that
[0022] In the present utility model, by providing a fixing device, when fixing the steel pipe, push the sliding rod into the circular groove so that the conical block presses against the trapezoidal block, thereby causing the sliding rod to extend outwards, and then the arc plate closely adheres to the inner wall of the steel pipe. When it moves to a suitable position, insert the clamping rod into the sliding rod for fixation. Under the action of the rectangular strip, the arc plate can closely adhere to the inner wall of the steel pipe, avoiding the phenomenon of the steel pipe shifting. Under the action of the circular strip, no rigid contact occurs between the conical block and the trapezoidal block, avoiding the phenomenon of damage caused by the mutual impact of the conical block and the trapezoidal block. After taking readings, pull out the clamping rod. Under the action of the first spring, when it is not necessary to push out the arc plate, the conical block can be reset, thereby avoiding the phenomenon of the conical block continuously pressing against the trapezoidal block. Under the action of the second spring, after the conical block moves away from the trapezoidal block, the trapezoidal block can be reset under the elastic force of the second spring, thus achieving the fixing effect, and solving the problem that the inner diameter of the steel pipe is inconvenient to measure because the steel pipe cannot be fixed on the surface of the measuring device. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 is a three-dimensional structural schematic diagram of a seamless steel pipe inner and outer diameter measuring device proposed by the present utility model;
[0024] Figure 2 is a schematic diagram of the fixing device of a seamless steel pipe inner and outer diameter measuring device proposed by the present utility model;
[0025] Figure 3 is a partial schematic diagram of the fixing device of a seamless steel pipe inner and outer diameter measuring device proposed by the present utility model;
[0026] Figure 4 is a schematic diagram of the limiting device of a seamless steel pipe inner and outer diameter measuring device proposed by the present utility model.
[0027] Legend: 1. Measuring plate; 2. Fixing device; 21. Tapered block; 22. Slide bar; 23. First spring; 24. Clamping bar; 25. Trapezoidal block; 26. Sliding bar; 27. Arc plate; 28. Rectangular bar; 29. Second spring; 210. Round bar; 3. Limiting device; 31. Snap ring; 32. Steel wire rope; 33. Wire roller; 34. Third spring; 35. Positioning bar; 4. Rectangular plate; 5. Fixed block; 6. Telescopic rod; 7. Extrusion plate. Detailed implementation
[0028] Example 1, as Figures 1-4 shown, a seamless steel pipe inner and outer diameter measuring device, including a measuring plate 1, a rectangular plate 4 is fixedly connected to the upper top of the measuring plate 1, a telescopic rod 6 is fixedly connected to the side of the rectangular plate 4, a spring is sleeved on the surface of the telescopic rod 6, one end of the telescopic rod 6 is fixedly connected to an extrusion plate 7, the surface of the measuring plate 1 is provided with scales, a fixed block 5 is fixedly connected to the upper top of the measuring plate 1, a fixing device 2 is arranged inside the fixed block 5, a handle is fixedly connected to the bottom of the measuring plate 1, a limiting device 3 is fixedly connected to the side of the rectangular plate 4. When it is necessary to measure the inner and outer diameters of the steel pipe, the steel pipe is sleeved on the surface of the fixed block 5. Under the influence of the fixing device 2, the steel pipe is fixed on the surface of the measuring plate 1. Under the action of the spring and the telescopic rod 6, the extrusion plate 7 is closely attached to the outer wall of the steel pipe. The steel pipe is removed from the surface of the measuring plate 1. Under the action of the limiting device 3, the extrusion plate 7 is limited, so as to facilitate reading the inner and outer diameter dimensions of the steel pipe.
[0029] Refer to Figures 2-3, the fixing device 2 includes a circular groove formed inside the fixing block 5. A sliding rod 22 is slidably connected to the surface of the measuring plate 1. One end of the sliding rod 22 is fixedly connected to a conical block 21. A sliding rod 26 is slidably connected to the inner wall of the circular groove. One end of the sliding rod 26 is fixedly connected to a trapezoidal block 25. The trapezoidal block 25 is arranged inside the circular groove. The other end of the sliding rod 26 is fixedly connected to an arc plate 27. When the steel pipe is sleeved on the surface of the fixing block 5, the sliding rod 22 is pushed towards the inside of the fixing block 5, so that the conical block 21 squeezes the trapezoidal block 25. Thus, under the action of the sliding rod 26, the arc plate 27 moves outwards, and then the steel pipe is fixed on the surface of the measuring plate 1 for measurement. When it is necessary to measure the inner and outer diameters of the gear of the steel pipe, the steel pipe is sleeved on the surface of the fixing block 5. Under the influence of the fixing device 2, the steel pipe is fixed on the surface of the measuring plate 1. Under the action of the spring and the telescopic rod 6, the pressing plate 7 is tightly attached to the outer wall of the steel pipe. When the steel pipe is removed from the surface of the measuring plate 1, under the action of the limiting device 3, the pressing plate 7 is limited, and then it is convenient to read the inner and outer diameter dimensions of the steel pipe. The sliding rod 22 penetrates through the handle. A first spring 23 is sleeved on the surface of the sliding rod 22. A clamping rod 24 is inserted into the side of the handle. Both ends of the first spring 23 are fixedly connected to the surface of the handle and the end of the sliding rod 22 away from the handle respectively. Under the action of the first spring 23, when it is not necessary to push out the arc plate 27, the conical block 21 can be reset, thus avoiding the phenomenon that the conical block 21 always squeezes the trapezoidal block 25. A second spring 29 is fixedly connected to the side of the trapezoidal block 25. The other end of the second spring 29 is fixedly connected to the inner wall of the circular groove. The second spring 29 is sleeved on the surface of the sliding rod 26. Under the action of the second spring 29, after the conical block 21 moves away from the trapezoidal block 25, the trapezoidal block 25 can be reset under the elastic force of the second spring 29. A circular strip 210 is fixedly connected to the side of the trapezoidal block 25. The circular strip 210 is a rubber strip. Under the action of the circular strip 210, there will be no rigid contact between the conical block 21 and the trapezoidal block 25, avoiding the phenomenon that the conical block 21 and the trapezoidal block 25 collide with each other and are damaged. A rectangular strip 28 is fixedly connected to the surface of the arc plate 27. The rectangular strip 28 is a rubber strip. Under the action of the rectangular strip 28, the arc plate 27 can be tightly attached to the inner wall of the steel pipe, avoiding the phenomenon of the steel pipe shifting. When fixing the steel pipe, the sliding rod 22 is pushed towards the inside of the circular groove to make the conical block 21 squeeze the trapezoidal block 25, so that the sliding rod 26 extends outwards, and then the arc plate 27 is tightly attached to the inner wall of the steel pipe. When it moves to the appropriate position, the clamping rod 24 is inserted into the inside of the sliding rod 22 for fixation. Under the action of the rectangular strip 28, the arc plate 27 can be tightly attached to the inner wall of the steel pipe, avoiding the phenomenon of the steel pipe shifting. Under the action of the circular strip 210, there will be no rigid contact between the conical block 21 and the trapezoidal block 25, avoiding the phenomenon that the conical block 21 and the trapezoidal block 25 collide with each other and are damaged. After the reading is completed, the clamping rod 24 is pulled out. Under the action of the first spring 23, when it is not necessary to push out the arc plate 27,The conical block 21 can be reset, thus avoiding the phenomenon that the conical block 21 continuously presses the trapezoidal block 25. Under the action of the second spring 29, after the conical block 21 moves away from the trapezoidal block 25, the trapezoidal block 25 can be reset under the elastic force of the second spring 29, thereby achieving a fixing effect.
[0030] Referring to Figure 4 , the limiting device 3 includes a steel wire rope 32 fixedly connected to one end of the telescopic rod 6. A wire roller 33 is rotatably connected to the surface of the sliding rod 22. The two steel wire ropes 32 are wound in opposite directions on the surface of the wire roller 33. A positioning rod 35 is inserted into the side of the handle. The positioning rod 35 is inserted into the inside of the wire roller 33. Under the action of the positioning rod 35, after the pressing plate 7 presses against the outer wall of the steel pipe, the telescopic rod 6 can be restricted, thereby avoiding the phenomenon that the telescopic rod 6 is squeezed and moved by the spring when the steel pipe is removed. A snap ring 31 is fixedly connected to the side of the measuring plate 1. The steel wire rope 32 is slidably connected inside the snap ring 31. Under the action of the snap ring 31, the steel wire rope 32 does not directly contact the measuring plate 1, avoiding the phenomenon that the steel wire rope 32 wears and breaks. A third spring 34 is sleeved on the surface of the positioning rod 35. The two ends of the third spring 34 are respectively fixedly connected to the side of the handle and the end of the positioning rod 35 away from the handle. Under the action of the third spring 34, the positioning rod 35 can be self-locked and inserted into the inside of the wire roller 33. Pull the positioning rod 35 outwards to separate the positioning rod 35 from the wire roller 33, and then under the action of the spring, the steel wire rope 32 is released. When the pressing plate 7 presses on the surface of the steel pipe, under the action of the third spring 34, the positioning rod 35 can be self-locked and inserted into the inside of the wire roller 33, and then read the value after the steel pipe is removed. When collecting, pull the positioning rod 35 outwards to separate the positioning rod 35 from the wire roller 33, press the pressing plate 7 towards the rectangular plate 4, and at the same time rotate the wire roller 33 to wind the steel wire rope 32 on the surface of the wire roller 33. When the pressing plate 7 moves to a certain position, under the action of the third spring 34, the positioning rod 35 can be self-locked and inserted into the inside of the wire roller 33, thereby achieving a limiting effect.
[0031] Working principle: When the seamless steel pipe inner and outer diameter measuring device is needed and when it is necessary to measure the inner and outer diameters of the steel pipe by gears, the steel pipe is sleeved on the surface of the fixed block 5. Under the influence of the fixing device 2, the steel pipe is fixed on the surface of the measuring plate 1. Under the action of the spring and the telescopic rod 6, the pressing plate 7 is tightly attached to the outer wall of the steel pipe. When the steel pipe is removed from the surface of the measuring plate 1, under the action of the limiting device 3, the pressing plate 7 is limited, thus facilitating the reading of the inner and outer diameter dimensions of the steel pipe. When fixing the steel pipe, the sliding rod 22 is pushed into the circular groove, causing the conical block 21 to press the trapezoidal block 25, so that the sliding rod 26 extends outwards, and then the arc plate 27 is tightly attached to the inner wall of the steel pipe. When it moves to the appropriate position, the clamping rod 24 is inserted into the sliding rod 22 for fixation. Under the action of the rectangular strip 28, the arc plate 27 can be tightly attached to the inner wall of the steel pipe, avoiding the phenomenon of the steel pipe shifting. Under the action of the round bar 210, the rigid contact between the conical block 21 and the trapezoidal block 25 is avoided, and the phenomenon of damage caused by the mutual impact of the conical block 21 and the trapezoidal block 25 is avoided. After reading the data, the clamping rod 24 is pulled out. Under the action of the first spring 23, when the arc plate 27 does not need to be pushed out, the conical block 21 can be reset, thus avoiding the phenomenon that the conical block 21 always presses the trapezoidal block 25. Under the action of the second spring 29, after the conical block 21 moves away from the trapezoidal block 25, the trapezoidal block 25 can be reset under the elastic force of the second spring 29, thus achieving the fixing effect. Pull the clamping position rod 35 outwards, causing the clamping position rod 35 to separate from the wire roller 33. Then, under the action of the spring, the steel wire rope 32 is released. When the pressing plate 7 presses on the surface of the steel pipe, under the action of the third spring 34, the clamping position rod 35 can be self-locked and inserted into the wire roller 33. After the steel pipe is removed, the reading is taken. When collecting, pull the clamping position rod 35 outwards, causing the clamping position rod 35 to separate from the wire roller 33. Press the pressing plate 7 towards the rectangular plate 4, and at the same time rotate the wire roller 33, causing the steel wire rope 32 to wind on the surface of the wire roller 33. When the pressing plate 7 moves to a certain position, under the action of the third spring 34, the clamping position rod 35 can be self-locked and inserted into the wire roller 33, thus achieving the limiting effect.
Claims
1. A device for measuring inner and outer diameters of seamless steel pipes, comprising a measuring plate (1), characterized in that: The upper top of the measuring plate (1) is fixedly connected to a rectangular plate (4), the side of the rectangular plate (4) is fixedly connected to a telescopic rod (6), the surface of the telescopic rod (6) is sleeved with a spring, one end of the telescopic rod (6) is fixedly connected to an extrusion plate (7), the surface of the measuring plate (1) is provided with a scale, the upper top of the measuring plate (1) is fixedly connected to a fixing block (5), the interior of the fixing block (5) is provided with a fixing device (2), the bottom of the measuring plate (1) is fixedly connected to a handle, the rectangular plate (4) The side of the measuring plate (1) is fixedly connected to a limiting device (3), the fixing device (2) comprises a circular groove provided inside the fixing block (5), the surface of the measuring plate (1) is slidably connected to a sliding rod (22), one end of the sliding rod (22) is fixedly connected to a conical block (21), the inner wall of the circular groove is slidably connected to a sliding rod (26), one end of the sliding rod (26) is fixedly connected to a trapezoidal block (25), the trapezoidal block (25) is arranged inside the circular groove, and the other end of the sliding rod (26) is fixedly connected to an arc plate (27).
2. The device for measuring inner and outer diameters of seamless steel pipes according to claim 1, characterized in that: The slide bar (22) penetrates the handle, a first spring (23) is sleeved on the surface of the slide bar (22), a clamping rod (24) is inserted on the side of the handle, and two ends of the first spring (23) are respectively fixedly connected to the surface of the handle and an end of the slide bar (22) away from the handle.
3. The device for measuring inner and outer diameters of seamless steel pipes according to claim 2, characterized in that: A second spring (29) is fixedly connected to the side of the trapezoidal block (25), the other end of the second spring (29) is fixedly connected to the inner wall of the circular groove, and the second spring (29) is sleeved on the surface of the sliding rod (26).
4. The device for measuring inner and outer diameters of seamless steel pipes according to claim 3, characterized in that: A round bar (210) is fixedly connected to the side surface of the trapezoidal block (25), and the round bar (210) is a rubber bar.
5. The device for measuring inner and outer diameters of seamless steel pipes according to claim 4, characterized in that: A rectangular strip (28) is fixedly connected to the surface of the arc plate (27), and the rectangular strip (28) is a rubber strip.
6. The device for measuring inner and outer diameters of seamless steel pipes according to claim 5, characterized in that: The limiting device (3) comprises a steel wire rope (32) fixedly connected to one end of the telescopic rod (6); the surface of the sliding rod (22) is rotatably connected to a wire roller (33); the two steel wire ropes (32) are wound in positive and negative directions on the surface of the wire roller (33); a locking rod (35) is inserted into the side of the handle; and the locking rod (35) is inserted into the inside of the wire feed roller (33).
7. The device for measuring inner and outer diameters of seamless steel pipes according to claim 6, characterized in that: A clamping ring (31) is fixedly connected to the side surface of the measuring plate (1), and the steel wire rope (32) is slidably connected inside the clamping ring (31).
8. The device for measuring inner and outer diameters of seamless steel pipes according to claim 7, characterized in that: A third spring (34) is sleeved on the surface of the locking rod (35), and two ends of the third spring (34) are respectively fixedly connected to an end of the locking rod (35) away from the handle at the side of the handle.