Novel pipe length measuring device

By using a cylinder-driven elastic joint in conjunction with a movable bracket, the problems of inaccurate measurement and easy damage to encoders in existing pipe length measuring devices are solved, achieving high-precision and reliable pipe length measurement that is adaptable to different pipe materials.

CN223741545UActive Publication Date: 2025-12-30HUNAN ZHONGCAI CHEM BUILDING MATERIALS CO LTD
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Patent Information

Application Number
CN202520274221.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-20
Publication Date
2025-12-30
Estimated Expiration
2035-02-20

AI Technical Summary

Technical Problem

Existing pipe length measuring devices are prone to slippage during measurement due to insufficient contact between the rollers and the pipe, affecting measurement accuracy. Furthermore, manual operation can easily damage the encoder, impacting the equipment's lifespan and measurement continuity.

Method used

A novel pipe length measuring device was designed, which uses a cylinder-driven elastic joint and a movable bracket to ensure that the coding wheel fits tightly with the pipe and reduces slippage through the rubber coding wheel. The cylinder automatically extends and retracts to adapt to pipes of different diameters and materials, and the length data is recorded in combination with a rotary encoder.

Benefits of technology

It improves measurement accuracy, reduces slippage, adapts to different pipe materials, extends equipment lifespan, and ensures the reliability and continuity of measurements.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a novel pipe length measuring device, which is characterized in that the upper end of a fixed bracket is rotatably connected with the bottom of a cylinder, the output end of the cylinder is adaptively provided with an elastic joint, the lower end of the elastic joint is rotatably connected with a movable bracket through a first pin shaft, and the upper end of the movable bracket is rotatably connected with the lower end of the fixed bracket; coding assemblies are arranged at the lower ends of the movable supports. The pipe length measuring device is simple in overall structure, the phenomenon that the device slips on a pipe in the measuring process is effectively reduced through cooperation of the coding wheel with the large friction coefficient, the air cylinder and the movable support, and the pipe length measuring accuracy is improved; and automatic stretching and retracting of the air cylinder are more fit for pressing of the pipes, the device can adapt to the pipes of different diameters and materials, and the application range is wide.
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Description

Technical Field

[0001] This utility model relates to the technical field of pipe length measuring devices, specifically to a novel pipe length measuring device. Background Technology

[0002] In industrial production, accurate measurement of pipe length is crucial for product quality control and subsequent processing. Current technology for measuring the length of processed pipes typically uses the weight of an encoder to compress the pipe. However, this method has several problems: First, weight compression may result in insufficient contact between the roller and the pipe, leading to slippage and affecting measurement accuracy. Second, manual operation can easily lead to forgetting to retract the encoder, causing it to be damaged during wire pulling, affecting the equipment's lifespan and measurement continuity.

[0003] Therefore, designing a new type of pipe length measuring device that can apply uniform and stable pressure as needed, so that the roller fits tightly with the pipe, better adapts to pipes of different diameters and materials, and ensures the reliability of the measurement, has become the direction for further improvement. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a novel pipe length measuring device, including a fixed bracket, a cylinder, a movable bracket, an elastic joint, and an encoding component. The upper end of the fixed bracket is rotatably connected to the bottom of the cylinder. An elastic joint is adapted to be installed at the output end of the cylinder. The lower end of the elastic joint is rotatably connected to the movable bracket through a first pin. The upper end of the movable bracket is rotatably connected to the lower end of the fixed bracket. An encoding component is provided at the lower end of the movable bracket.

[0005] Preferably, the movable bracket is an obtuse-angled bent plate, and the bending point of the movable bracket is not higher than the cylinder.

[0006] Preferably, the fixing bracket is L-shaped, and the fixing bracket has mounting holes at the bottom.

[0007] Preferably, the coding wheel is made of rubber.

[0008] Preferably, the encoding component includes a rotary encoder and an encoding wheel, with the rotary encoder fixedly threaded through the lower end of the movable bracket, and the output end of the rotary encoder being adapted and connected to the encoding wheel.

[0009] Preferably, a mounting joint is fixedly provided at the bottom of the cylinder, and the mounting joint is rotatably connected to the fixed bracket through a limiting pin.

[0010] Preferably, the lower end of the fixed bracket is rotatably connected to the movable bracket via a second pin, and a gasket is affixed between the movable bracket and the fixed bracket.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] (1) This utility model features a fixed bracket that is rotatably connected to the bottom of the cylinder. An elastic joint is fitted to the output end of the cylinder. The lower end of the elastic joint is rotatably connected to a movable bracket via a first pin. The upper end of the movable bracket is rotatably connected to the lower end of the fixed bracket. An encoding component is provided at the lower end of the movable bracket. The overall structure of this utility model is simple. By using an encoding wheel with a high coefficient of friction in conjunction with the cylinder and movable bracket, the device effectively reduces slippage on the pipe during measurement, improving the accuracy of pipe length measurement. Furthermore, the automatic extension and retraction of the cylinder provides a more secure fit to the pipe, adapting to pipes of different diameters and materials, thus having a wide range of applications. Attached Figure Description

[0013] Figure 1 This is one of the overall structural schematic diagrams of this utility model.

[0014] Figure 2 This is the second schematic diagram of the overall structure of this utility model. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0016] like Figures 1 to 2 As shown, a novel pipe length measuring device includes a fixed bracket 1, a cylinder 2, a movable bracket 3, an elastic joint 4, a first pin 5, a rotary encoder 6, an encoder wheel 7, a mounting joint 8, a limit pin 9, a second pin 10, a gasket 11, a pipe 12, and a mounting hole 13.

[0017] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] like Figures 1 to 2 As shown, the upper end of the fixed bracket 1 is rotatably connected to the bottom of the cylinder 2. Specifically, the bottom of the cylinder 2 is fixedly provided with an installation joint 8, which is rotatably connected to the fixed bracket 1 through a limit pin 9.

[0020] The output end of cylinder 2 is fitted with a flexible joint 4. The lower end of the flexible joint 4 is rotatably connected to the movable bracket 3 via a first pin 5. The upper end of the movable bracket 3 is rotatably connected to the lower end of the fixed bracket 1. Specifically, the lower end of the fixed bracket 1 is rotatably connected to the movable bracket 3 via a second pin 10. A gasket 11 is attached between the movable bracket 3 and the fixed bracket 1. The movable bracket 3 is an obtuse-angle bent plate, and the bending point of the movable bracket 3 is not higher than that of cylinder 2.

[0021] The lower end of the movable support 3 is equipped with an encoding component. The encoding component includes a rotary encoder 6 and an encoding wheel 7. The rotary encoder 6 is fixedly inserted through the lower end of the movable support 3. The output end of the rotary encoder 6 is adapted to connect with the encoding wheel 7. The encoding wheel 7 is made of rubber, which can significantly reduce the slippage between the encoding wheel 7 and the tube 12, thereby improving the measurement accuracy.

[0022] The fixed bracket 1 is L-shaped, and the bottom of the fixed bracket 1 is provided with mounting holes 13. The mounting holes 13 on the fixed bracket 1 are used to fix and connect with the front end of the traction machine. When the pipe 12 is produced and pulled out by the traction machine, the rotary encoder 6 calculates the length of the pulled-out pipe 12 in time, so that the subsequent cutting machine can accurately cut the pipe 12.

[0023] The stable pressure provided by cylinder 2 ensures that the encoder wheel 7 fits tightly against the tube 12. As the tube 12 moves, the encoder wheel 7 rotates, and the rotation signal is converted into length data by the rotary encoder 6.

[0024] The working principle of this utility model is as follows:

[0025] During the measurement process, cylinder 2 extends, causing the lower end of the movable bracket 3 to face downwards, so that the encoder wheel 7 is pressed against the pipe 12, and the length of the pulled-out pipe 12 is recorded by the rotary encoder 6. In the non-measurement state, cylinder 2 retracts, causing the lower end of the movable bracket 3 to face upwards and lift the encoder wheel 7, effectively preventing the rotary encoder 6 from being damaged due to the operator forgetting to retract it when pulling the wire.

[0026] The overall structure of this utility model is simple, which improves the accuracy of measuring the length of the pipe 12; and the automatic extension and retraction of the cylinder 2 provides a more fitting compression of the pipe 12, which can adapt to pipes 12 of different diameters and materials, and has a wide range of applications.

[0027] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of this utility model. Therefore, any modifications, equivalent changes, or improvements made in accordance with the claims of this utility model shall still fall within the scope of this utility model.

Claims

1. A novel pipe length measuring device characterized by: The utility model provides a kind of fixed support (1), cylinder (2), movable support (3), elastic joint (4) and encoding assembly, the upper end of the fixed support (1) is rotatably connected with the bottom of cylinder (2), the output end of the cylinder (2) is adapted to install elastic joint (4), the lower end of the elastic joint (4) is rotatably connected with movable support (3) by first pin shaft (5), the upper end of the movable support (3) is rotatably connected with the lower end of the fixed support (1), and the lower end of the movable support (3) is equipped with encoding assembly.

2. A novel pipe length measuring device as claimed in claim 1, wherein: The movable support (3) is obtuse angle bending plate, and the bending point of the movable support (3) is not higher than the cylinder (2).

3. A novel pipe length measuring device as claimed in claim 2, wherein: The fixed support (1) is L-shaped, and the bottom of the fixed support (1) is provided with a mounting hole (13).

4. A novel pipe length measuring device as claimed in claim 3, wherein: The encoding wheel (7) is made of rubber.

5. A novel pipe length measuring device as claimed in claim 4, wherein: The encoding assembly comprises a rotary encoder (6) and an encoding wheel (7), the lower end of the movable support (3) is fixedly provided with the rotary encoder (6), and the output end of the rotary encoder (6) is connected with the encoding wheel (7).

6. A novel pipe length measuring device according to claim 3 or 4, characterized in that: The bottom of the cylinder (2) is fixedly provided with a mounting connector (8), and the mounting connector (8) is rotatably connected with the fixed support (1) by a limiting pin (9).

7. A novel pipe length measuring device as claimed in claim 6, wherein: The lower end of the fixed support (1) is rotatably connected with the movable support (3) by a second pin shaft (10), and a gasket (11) is attached between the movable support (3) and the fixed support (1). The lower end of the fixed support (1) is rotatably connected with the movable support (3) by a second pin shaft (10), and a gasket (11) is attached between the movable support (3) and the fixed support (1).