Steel pipe length measuring instrument

Abstract

The utility model discloses a steel pipe length measuring instrument, which comprises a bottom plate, an equipment main body, a rhombic telescopic unit, an electric push rod and a push plate, the rhombic telescopic unit comprises a horizontal rhombic telescopic frame, a lead screw sliding table used for driving the rhombic telescopic frame to stretch out and draw back, a plurality of supporting mechanisms arranged at intervals in the telescopic direction of the rhombic telescopic frame, and a limiting mechanism assembled on the supporting mechanism located at the end, away from the bottom plate, of the rhombic telescopic frame and capable of making contact with the end of the steel pipe. The supporting mechanism comprises at least two pulleys in sliding contact with the ground, during carrying or non-use, the lead screw sliding table can drive the rhombic telescopic frame to be shortened, so that the size during storage is reduced, in the factory use environment and in the folded state, the size is small, so that carrying vehicles or personnel such as forklifts can pass through, and temporary use after carrying is facilitated; for example, when the device is used on a construction site, the device is small in size and convenient to carry and use, and after construction on the construction site is completed, the folded device can be carried away.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of steel pipe detection, in particular to a steel pipe length measuring instrument. BACKGROUND

[0002] Steel pipes are often used in construction, pipelines and mechanical structures, and their lengths must strictly match the design drawings. For example, in a pipeline system, excessively long steel pipes can cause the connection to be misaligned, and excessively short steel pipes can result in poor sealing or insufficient structural strength. Length detection can detect errors in advance and reduce the adjustment process during construction.

[0003] The patent document with Chinese application number CN202321033828.8, "Steel pipe length automatic detection mechanism", discloses a steel pipe length automatic detection mechanism. The position of the measuring mechanism is adjusted by an electric cylinder. The cylinder pushes the steel pipe through a spring buffer and ensures that the steel pipe is completely attached to the push pipe block. The length of the steel pipe is read by a magnetic scale. The electric cylinder of the measuring mechanism moves to adapt to the length of the steel pipe. The end face of the steel pipe is pressed against the measuring mechanism. The pipe blocking mechanism provides a measurement reference surface. The magnetic scale measures the length to ensure the accuracy of the steel pipe length detection and improve the measurement efficiency.

[0004] However, the above-mentioned patent still has the following disadvantages. The device is long and bulky, making it difficult to transport. It needs to be disassembled for transportation and assembled again at the use site. The operation is complicated, time-consuming and labor-intensive. In the construction site, a tape measure is usually used for measurement, but the measurement error is large. Therefore, a steel pipe length measuring instrument needs to be designed. Utility model content

[0005] To overcome the problem of the existing equipment being inconvenient to transport in the prior art, the utility model provides a steel pipe length measuring instrument.

[0006] To achieve the above-mentioned purpose, the utility model provides a steel pipe length measuring instrument, which comprises a bottom plate, a device main body assembled on the bottom plate, a rhombus telescopic unit assembled at one end of the bottom plate, an electric push rod assembled on the bottom plate and having an end part movable along the telescopic direction of the rhombus telescopic frame, and a vertical push plate assembled on the moving end of the electric push rod.

[0007] The rhombus telescopic unit comprises a horizontal rhombus telescopic frame, a lead screw sliding table assembled on the bottom plate for driving the rhombus telescopic frame to telescope, a plurality of sets of support mechanisms arranged at intervals along the telescopic direction of the rhombus telescopic frame and assembled on the rhombus telescopic frame, and a limiting mechanism assembled on the support mechanism at the end of the rhombus telescopic frame away from the bottom plate and capable of contacting the end part of the steel pipe. The support mechanism comprises at least two pulleys in sliding contact with the ground.

[0008] Preferably, the rhomboid telescopic frame includes a plurality of X-shaped deformable frames connected in sequence, and the X-shaped deformable frame includes a pair of first connecting rods hinged to each other at the center, and the two ends of the first connecting rods are respectively hinged to the ends of the corresponding first connecting rods in two adjacent X-shaped deformable frames;

[0009] The support mechanism further includes a horizontal support arm fixedly connected to the center of a corresponding first connecting rod and rotatably connected to the center of the first connecting rod, with its length direction perpendicular to the extension direction of the rhomboid telescopic frame, and at least one vertical second connecting rod slidably connected to the support arm along its length direction. A pair of pulleys are respectively assembled at both ends of the support arm. The lower end of the second connecting rod is hinged to two horizontal auxiliary rods. The ends of the pair of auxiliary rods away from the second connecting rod are respectively hinged to a pair of first connecting rods to form a parallelogram structure.

[0010] Preferably, the support mechanism further includes a pair of symmetrically arranged sliding members that are slidably connected to the support arm along its length, a double-threaded rod arranged parallel to the support arm and mounted on the support arm at both ends via bearing seats, and a handwheel mounted on one end of the double-threaded rod.

[0011] A pair of sliding parts are threadedly sleeved on both ends of a double-threaded rod, and a support wheel is mounted on each sliding part.

[0012] Preferably, the limiting mechanism includes a mounting frame mounted on the side of the corresponding support arm away from the base plate, a limiting plate arranged parallel to the push plate and located on the side of the mounting frame closer to the base plate, a pressure sensor mounted on the mounting frame and in contact with the limiting plate, and several slide rods fixedly connected to the limiting plate and sliding through the mounting frame along the telescopic direction of the rhomboid telescopic frame. At least one slide rod is fitted with a spring at both ends that abut against the mounting frame and the limiting plate respectively. A limiting ring is fixedly connected to the end of the slide rod away from the limiting plate.

[0013] Preferably, the moving end of the lead screw slide is hinged to one end of the corresponding X-shaped deformable frame near the base plate, and the base of the lead screw slide is hinged to the other end of the corresponding X-shaped deformable frame near the base plate.

[0014] Preferably, a strip slide of the same length is fixedly connected to the support arm, and the sliding member is slidably assembled on the strip slide.

[0015] According to the above technical solution, the steel pipe length measuring instrument provided by this utility model has the following beneficial effects when in use:

[0016] When not in use or during transport, the screw slide can shorten the diamond telescopic frame, bringing several rod support mechanisms together and moving them close to the base plate, thereby reducing the volume when stored. In a factory environment, the folded size allows for passage of transport vehicles or personnel, such as forklifts, and is also convenient for temporary use after transport. For example, when used on a construction site, the small size makes it easy to carry and use. After the construction is completed, the folded equipment can be moved away.

[0017] Other features and advantages of this utility model will be described in detail in the following detailed description section; and all parts not covered in this utility model are the same as or can be implemented using existing technology. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a three-dimensional structural diagram of a steel pipe length measuring instrument provided in this utility model.

[0020] Figure 2 This is a three-dimensional structural diagram of a steel pipe length measuring instrument provided in this utility model;

[0021] Figure 3 This utility model provides a steel pipe length measuring instrument. Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 This is a three-dimensional structural diagram of the limiting mechanism of a steel pipe length measuring instrument provided in this utility model.

[0023] Explanation of reference numerals in the attached figures

[0024] 1. Base plate; 2. Equipment body; 3. Electric push rod; 4. Push plate; 5. Diamond telescopic frame; 6. Screw slide table; 7. Support mechanism; 8. Pulley; 9. X-shaped deformable frame; 10. Support arm; 11. Second connecting rod; 12. Auxiliary rod; 13. Sliding component; 14. Double-ended threaded rod; 15. Handwheel; 16. Support wheel; 17. Mounting frame; 18. Limiting plate; 19. Pressure sensor; 20. Slide rod; 21. Spring; 22. Strip slide block. Detailed Implementation

[0025] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0026] In this utility model, unless otherwise stated, directional words such as "upper," "lower," "inner," and "outer" included in the terminology only represent the orientation of the term in its conventional use or are common terms understood by those skilled in the art, and should not be regarded as limitations on the term.

[0027] like Figures 1-4 As shown, a steel pipe length measuring instrument includes: a base plate 1, a main body 2 mounted on the base plate 1, a diamond-shaped telescopic unit with one end mounted on the base plate 1, an electric push rod 3 mounted on the base plate 1 and whose end can move along the telescopic direction of the diamond-shaped telescopic frame 5, and a vertical push plate 4 mounted on the moving end of the electric push rod 3.

[0028] The rhomboid telescopic unit includes a horizontal rhomboid telescopic frame 5, a screw slide 6 mounted on the base plate 1 for driving the rhomboid telescopic frame 5 to extend and retract, several sets of support mechanisms 7 arranged at intervals along the extension and retraction direction of the rhomboid telescopic frame 5 and all mounted on the rhomboid telescopic frame 5, and a limiting mechanism mounted on the support mechanism 7 located at the end of the rhomboid telescopic frame 5 away from the base plate 1 and capable of contacting the end of the steel pipe. The support mechanism 7 includes at least two pulleys 8 that slide in contact with the ground.

[0029] In the above technical solution, the main body 2 of the equipment is based on existing mature technology and generally includes: a main control unit, commonly a microcontroller such as an ARM chip, responsible for processing sensor data, executing measurement algorithms, and controlling equipment operation; a display module, usually a touch screen or high-definition LCD screen, which displays the steel pipe length, measurement status, and operation menu in real time, allowing users to operate directly by clicking; an input module, including physical buttons, a keyboard, or a touch screen input, used for manually adjusting parameters, starting / stopping measurements, or switching modes; a communication module, supporting wired and wireless connections such as Ethernet, RS485, Wi-Fi, and Bluetooth, used for transmitting data with a host computer, factory network, or mobile devices; and a data storage module, with a built-in hard drive, SD card, or solid-state drive, to save historical measurement data, calibration records, and system logs for easy subsequent traceability.

[0030] When in use, the lead screw slide 6 drives the diamond telescopic frame 5 to extend. In the prior art, the lead screw slide 6 is a stepper motor. Therefore, the extension length of the diamond telescopic frame 5 can be obtained. The steel pipe is placed on several sets of support mechanisms 7. The electric push rod 3 is started and pushes the steel pipe through the push plate 4 so that the other end of the steel pipe contacts the limiting mechanism. The actual length of the steel pipe can be obtained. The actual length of the steel pipe is equal to the extension length of the diamond telescopic frame 5 minus the moving length of the moving end of the electric push rod 3.

[0031] When not in use or during transport, the lead screw slide 6 can drive the diamond telescopic frame 5 to shorten, and move several rod support mechanisms 7 close to the base plate 1, thereby reducing the volume when stored. In a factory environment, the folded size is small, allowing passage for transport vehicles or personnel, such as forklifts, and is also convenient for temporary use after transport. For example, when used on a construction site, the small size makes it easy to carry and use. After the construction is completed, the folded equipment can be moved away.

[0032] The rhomboid telescopic frame 5 includes several X-shaped deformable frames 9 connected in sequence. Each X-shaped deformable frame 9 includes a pair of first connecting rods that are hinged to each other at the center. The two ends of the first connecting rods are respectively hinged to the ends of the corresponding first connecting rods in two adjacent X-shaped deformable frames 9.

[0033] The support mechanism 7 further includes a horizontal support arm 10 fixedly connected in the middle and rotatably connected to the center of the corresponding first connecting rod, with its length direction perpendicular to the extension direction of the rhomboid telescopic frame 5, and at least one vertical second connecting rod 11 slidably connected to the support arm 10 along its length direction. A pair of pulleys 8 are respectively assembled at both ends of the support arm 10. The lower end of the second connecting rod 11 is hinged to two horizontal auxiliary rods 12. The ends of the pair of auxiliary rods 12 away from the second connecting rod 11 are respectively hinged to a pair of first connecting rods to form a parallelogram structure.

[0034] In the above technical solution, the middle part of the support arm 10 is rotatably connected to the middle part of the corresponding first connecting rod, and a pair of auxiliary rods 12 and a pair of first connecting rods form a parallelogram structure, so that the length direction of the support arm 10 is always perpendicular to the extension direction of the rhomboid telescopic frame 5. No matter how the length of the rhomboid telescopic frame 5 continues to extend or retract, several sets of support mechanisms 7 can support the steel pipe of the corresponding length.

[0035] The support mechanism 7 also includes a pair of sliding members 13 that are symmetrically arranged and slidably connected to the support arm 10 along its length direction, a double-threaded rod 14 that is parallel to the support arm 10 and is mounted on the support arm 10 at both ends through a bearing seat, and a handwheel 15 that is mounted on one end of the double-threaded rod 14.

[0036] A pair of sliding members 13 are threadedly sleeved on both ends of the double-threaded rod 14, and a support wheel 16 is mounted on the sliding member 13.

[0037] In the above technical solution, turning the handwheel 15 can drive the double-ended threaded rod 14 to rotate, thereby causing a pair of sliding parts 13 to slide relative to or opposite to each other on the support arm 10, thereby adjusting the distance between the two support wheels 16. The larger the diameter of the steel pipe to be measured, the larger the distance between the two support wheels 16 needs to be. This method is suitable for measuring the length of steel pipes with different diameters.

[0038] The limiting mechanism includes a mounting frame 17 mounted on the side of the corresponding support arm 10 away from the base plate 1, a limiting plate 18 arranged parallel to the push plate 4 and located on the side of the mounting frame 17 close to the base plate 1, a pressure sensor 19 mounted on the mounting frame 17 and in contact with the limiting plate 18, and several slide rods 20 fixedly connected to the limiting plate 18 and sliding through the mounting frame 17 along the telescopic direction of the rhomboid telescopic frame 5. At least one slide rod 20 is fitted with a spring 21 at both ends that abut against the mounting frame 17 and the limiting plate 18 respectively. A limiting ring is fixedly connected to the end of the slide rod 20 away from the limiting plate 18.

[0039] In the above technical solution, after the steel pipe is placed on several support wheels 16, the electric push rod 3 will push the steel pipe to slide on several support wheels 16 through the push plate 4, so that the end of the steel pipe contacts the limiting plate 18 and pushes the limiting plate 18 to move together until the limiting plate 18 contacts the pressure sensor 19, the pressure sensor 19 detects the pressure value, and the moving end of the electric push rod 3 stops moving.

[0040] The movable end of the lead screw slide 6 is hinged to one end of the corresponding X-shaped deformable frame 9 near the base plate 1, and the base of the lead screw slide 6 is hinged to the other end of the corresponding X-shaped deformable frame 9 near the base plate 1.

[0041] In the above technical solution, the lead screw slide 6 is an existing mature technology, and its principle and structure will not be described in this article. The moving end of the lead screw slide 6 drives the two ends of the X-shaped deformable frame 9 to move closer to each other, and the X-shaped deformable frame 9 will extend. The moving end of the lead screw slide 6 drives the two ends of the X-shaped deformable frame 9 to move further apart, and the X-shaped deformable frame 9 will shorten.

[0042] A strip slide 22 of the same length direction is fixedly connected to the support arm 10, and the sliding member 13 is slidably assembled on the strip slide 22.

[0043] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0044] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0045] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A steel pipe length measuring instrument, characterized in that, include: The base plate (1), the main body of the equipment (2) mounted on the base plate (1), the rhomboid telescopic unit mounted on the base plate (1) at one end, the electric push rod (3) mounted on the base plate (1) and whose end can move along the telescopic direction of the rhomboid telescopic frame (5), and the vertical push plate (4) mounted on the moving end of the electric push rod (3). The rhomboid telescopic unit includes a horizontal rhomboid telescopic frame (5), a screw slide (6) mounted on the base plate (1) for driving the rhomboid telescopic frame (5) to extend and retract, several sets of support mechanisms (7) spaced along the extension and retraction direction of the rhomboid telescopic frame (5) and all mounted on the rhomboid telescopic frame (5), and a limiting mechanism mounted on the support mechanism (7) located at the end of the rhomboid telescopic frame (5) away from the base plate (1) and capable of contacting the end of the steel pipe. The support mechanism (7) includes at least two pulleys (8) that slide in contact with the ground.

2. The steel pipe length measuring instrument according to claim 1, characterized in that, The rhomboid telescopic frame (5) includes several X-shaped deformable frames (9) connected in sequence. The X-shaped deformable frame (9) includes a pair of first connecting rods that are hinged to each other in the center. The two ends of the first connecting rods are respectively hinged to the ends of the corresponding first connecting rods in two adjacent X-shaped deformable frames (9). The support mechanism (7) further includes a horizontal support arm (10) fixedly connected in the middle and rotatably connected to the center of the corresponding first connecting rod and whose length direction is perpendicular to the extension direction of the rhomboid telescopic frame (5), and at least one vertical second connecting rod (11) slidably connected to the support arm (10) along its length direction. A pair of pulleys (8) are respectively assembled at both ends of the support arm (10). The lower end of the second connecting rod (11) is hinged to two horizontal auxiliary rods (12). The ends of the pair of auxiliary rods (12) away from the second connecting rod (11) are respectively hinged to a pair of first connecting rods to form a parallelogram structure.

3. The steel pipe length measuring instrument according to claim 2, characterized in that, The support mechanism (7) further includes a pair of sliding members (13) arranged symmetrically and slidably connected to the support arm (10) along its length direction, a double-threaded rod (14) arranged parallel to the support arm (10) and mounted on the support arm (10) at both ends through a bearing seat, and a handwheel (15) mounted on one end of the double-threaded rod (14); A pair of sliding parts (13) are threadedly sleeved on both ends of a double-threaded rod (14), and a support wheel (16) is mounted on the sliding parts (13).

4. A steel pipe length measuring instrument according to claim 2, characterized in that, The limiting mechanism includes a mounting frame (17) mounted on the side of the corresponding support arm (10) away from the base plate (1), a limiting plate (18) arranged parallel to the push plate (4) and located on the side of the mounting frame (17) close to the base plate (1), a pressure sensor (19) mounted on the mounting frame (17) and in contact with the limiting plate (18), and several slide rods (20) fixedly connected to the limiting plate (18) and sliding through the mounting frame (17) along the telescopic direction of the rhomboid telescopic frame (5). At least one slide rod (20) is fitted with a spring (21) with both ends abutting against the mounting frame (17) and the limiting plate (18) respectively. A limiting ring is fixedly connected to the end of the slide rod (20) away from the limiting plate (18).

5. A steel pipe length measuring instrument according to claim 2, characterized in that, The moving end of the lead screw slide (6) is hinged to one end of the corresponding X-shaped deformable frame (9) near the base plate (1), and the base of the lead screw slide (6) is hinged to the other end of the corresponding X-shaped deformable frame (9) near the base plate (1).

6. A steel pipe length measuring instrument according to claim 3, characterized in that, A strip slide (22) of the same length direction is fixedly connected to the support arm (10), and the sliding member (13) is slidably assembled on the strip slide (22).

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