A foldable pipe cross-section measuring caliper device

Abstract

This utility model relates to the field of pipeline measurement technology and provides a foldable pipe cross-section measuring caliper device, including a pipe and a pipe-penetrating component that passes through one end of the pipe cross-section. A transmission component is rotatably mounted on the end of the pipe-penetrating component located outside the pipe. A foldable inner support component is mounted outside the pipe-penetrating component, which can expand or contract under the drive of the transmission component. A measuring component is mounted on the inner support component. The measuring component includes a first measuring element for measuring the pipe wall thickness after the inner support component expands to contact the inner wall of the pipe, and a second measuring element for measuring the inner diameter of the pipe. This utility model integrates pipe wall thickness measurement (caliper component) and pipe inner diameter measurement (infrared rangefinder) into the same device, allowing simultaneous acquisition of two key parameters through a single pipe-penetrating operation. This solves the problem of traditional step-by-step operations and low efficiency, thus improving measurement efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of pipeline measurement technology, and in particular relates to a foldable pipe cross-section measuring caliper device. Background Technology

[0002] When a pipe breaks, it is necessary to measure the pipe dimensions by examining the cross-section. A search revealed a pipe measuring device (publication number CN219454921U). The purpose of this utility model is to provide a pipe measuring device that is portable, has a relatively simple measurement process, is not easily corroded, and has small errors. The technical solution of this utility model is: a pipe measuring device, including an outer tube and an inner sliding rod that slides within its inner hole. A measuring claw is fixed to each end of the outer tube and the inner sliding rod on the same side, and the two measuring claws are parallel to each other. A scale is formed on the outer wall of the inner sliding rod.

[0003] However, the aforementioned pipe measuring device measures the pipe's inner diameter by fixing a measuring claw to each end of the outer sleeve and the inner slide rod on the same side, and by measuring the relative movement of the two measuring claws. This method makes it difficult to ensure the centering of the outer sleeve and the inner slide rod, which in turn causes the straight line connecting the positions of the two measuring claws to not pass through the pipe's axis, thus affecting the measurement accuracy. In addition, the pipe's thickness data is also important for pipe repair, but the aforementioned measuring device cannot simultaneously measure the pipe's inner diameter and wall thickness. Utility Model Content

[0004] This invention provides a foldable pipe cross-section measuring caliper device, which aims to solve the current problems of measurement accuracy and the inability to simultaneously measure the pipe inner diameter and pipe wall thickness.

[0005] This utility model is implemented as follows: a foldable pipe cross-section measuring caliper device includes a pipe and a pipe-penetrating component that passes through one end of the pipe cross-section. A transmission component is rotatably provided at one end of the pipe-penetrating component located outside the pipe. A foldable inner support component is provided outside the pipe-penetrating component, which can expand or contract under the drive of the transmission component. A measuring component is provided on the inner support component. The measuring component includes a first measuring component for measuring the pipe wall thickness after the inner support component expands to abut against the inner wall of the pipe, and a second measuring component for measuring the inner diameter of the pipe.

[0006] Preferably, the tube-passing component includes a central tube and a support ring, the central tube and the support ring being arranged along the same axial direction, and a handle being fixed between the central tube and the support ring.

[0007] Preferably, the transmission component includes a threaded rod, one end of which extends into the central tube and is rotatably connected to the central tube, and the other end of which passes through the support ring and is fixed with a crank handle.

[0008] Preferably, the inner support component includes a fixed ring and a movable ring. The fixed ring is fixed to the outside of the central tube. A threaded sleeve threaded to the outside of the threaded rod is fixed inside the movable ring. A plurality of first support rods are hinged to the outside of the fixed ring. Second support rods corresponding to the first support rods are hinged to the outside of the movable ring. A hinge seat is hinged between the first support rods and the second support rods.

[0009] Preferably, a rubber pad is fixed to the outer surface of the hinge seat.

[0010] Preferably, the first measuring component includes a first caliper base and a caliper fixed on the first caliper base, wherein the caliper base has graduation lines on its surface.

[0011] Preferably, the second measuring component includes a second mounting bracket and an infrared rangefinder fixed to the second mounting bracket.

[0012] Preferably, the first and second card holders are secured to the inner and outer sides of the hinge seat by bolts.

[0013] Compared with related technologies, the foldable pipe cross-section measuring caliper device provided by this utility model has the following advantages: 1. This utility model integrates pipe wall thickness measurement (caliper assembly) and pipe inner diameter measurement (infrared rangefinder) into the same device, and can obtain two key parameters simultaneously through a single pipe insertion operation, solving the problem of traditional detection requiring step-by-step operation and low efficiency, and improving measurement efficiency; 2. This utility model adopts a composite mechanism of threaded transmission and connecting rod hinge (threaded rod + moving ring + support rod assembly). The moving ring is driven to move axially by rotating the crank handle, so as to realize the automatic expansion and contraction of the support rod assembly, making the expansion force uniform and controllable, adapting to different pipe diameters, and allowing for repeated positioning. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the application of this utility model to a cross-sectional pipeline; Figure 2 This is a schematic diagram of the foldable pipe cross-section measuring caliper device proposed in this utility model; Figure 3 This is a schematic diagram of the pipe-through component and transmission component proposed in this utility model; Figure 4 This is a schematic diagram of the internal support component structure proposed in this utility model; Figure 5 This is a schematic diagram of the disassembled structure of the measuring component proposed in this utility model.

[0015] In the diagram: 1. Pipe insertion component; 11. Central tube; 12. Support ring; 13. Handle; 2. Transmission component; 21. Threaded rod; 22. Crank handle; 3. Internal support component; 31. Fixed ring; 32. Moving ring; 33. Threaded sleeve; 34. First support rod; 35. Second support rod; 36. Hinge seat; 37. Rubber pad; 4. Measuring component; 41. First measuring assembly; 411. Caliper; 412. First caliper seat; 42. Second measuring assembly; 421. Infrared rangefinder; 422. Second caliper seat; 43. Bolt; 5. Pipe. Detailed Implementation

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0017] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0018] Example Please see Figure 1 , Figure 2 A foldable pipe cross-section measuring caliper device includes a pipe 5 and a pipe-penetrating component 1 that passes through one end of the pipe 5 cross-section. A transmission component 2 is rotatably installed at one end of the pipe-penetrating component 1 located outside the pipe 5. A foldable inner support component 3, which can expand or contract under the drive of the transmission component 2, is installed outside the pipe-penetrating component 1. A measuring component 4 is installed on the inner support component 3. The measuring component 4 includes a first measuring component 41 for measuring the pipe wall thickness of the pipe 5 after the inner support component 3 expands to abut against the inner wall of the pipe 5, and a second measuring component 42 for measuring the inner diameter of the pipe 5. The pipe wall thickness measurement (caliper component) and the pipe inner diameter measurement (infrared rangefinder) are integrated into the same device, and two key parameters can be obtained simultaneously through a single pipe-penetrating operation.

[0019] Please see Figure 2 , Figure 3The tube-through component 1 includes a central tube 11 and a support ring 12, which are arranged along the same axial direction. A handle 13 is fixed between the central tube 11 and the support ring 12. The transmission component 2 includes a threaded rod 21, one end of which extends into the central tube 11 and is rotatably connected to the central tube 11. The other end of the threaded rod 21 passes through the support ring 12 and is fixed with a crank 22.

[0020] Please see Figure 2 , Figure 4 The inner support component 3 includes a fixed ring 31 and a movable ring 32. The fixed ring 31 is fixed to the outside of the central tube 11. The movable ring 32 has a threaded sleeve 33 that is threaded to the outside of the threaded rod 21. Several first support rods 34 are hinged to the outside of the fixed ring 31. Second support rods 35, which are distributed corresponding to the first support rods 34, are hinged to the outside of the movable ring 32. A hinge seat 36 is hinged between the first support rods 34 and the second support rods 35. A composite mechanism of threaded transmission and connecting rod hinge (threaded rod + movable ring + support rod group) is adopted. The movable ring 32 is driven to move axially by rotating the crank handle 22 to realize the automatic expansion and contraction of the support rod group, so that the expansion force is uniform and controllable, adaptable to different pipe diameters, and can be repeatedly positioned. A rubber pad 37 is fixed on the outer surface of the hinge seat 36. The rubber pad 37 is embedded in the outer surface of the hinge seat 36. The adaptive fit of the inner wall of the pipe is achieved by optimizing the material friction coefficient, which solves the problem of easy slippage of hard metal parts and ensures the stability of the measurement reference surface. It is especially suitable for polyethylene (PE) pipe inspection in humid environments.

[0021] Please see Figure 2 , Figure 5 The first measuring component 41 includes a first clasp 412 and a caliper 411 fixed on the first clasp 412. The caliper 411 has scale lines on its surface. The second measuring component 42 includes a second clasp 422 and an infrared rangefinder 421 fixed on the second clasp 422. The mechanical caliper 411 and the infrared rangefinder 421 form a collaborative measuring system, establishing a dual-function measuring mechanism of "physical contact + non-contact optics". The first clasp 412 and the second clasp 422 are clasped on the inner and outer sides of the hinge 36 and fixed by bolts 43. A split clasp design is adopted, and the measuring component and the support rod assembly can be quickly disassembled and assembled by bolts 43. Multi-diameter adapters are provided.

[0022] The working principle of this utility model is as follows: When in use, the central tube 11 is inserted through one end of the cross-section of the pipe 5. Then, the handle 13 is gripped and the crank 22 is turned simultaneously. Through the thread action of the threaded rod 21 and the inner threaded sleeve 33 of the moving ring 32, and the hinge restriction between the first support rod 34 and the second support rod 35 between the moving ring 32 and the fixed ring 31, the moving ring 32 can move towards the fixed ring 31. Then, the first support rod 34 and the second support rod 35 push the hinge seat 36 outward until the rubber pad 37 on the surface of the hinge seat 36 abuts against the inner wall of the pipe 5. Then, the entire device is pushed towards the pipe 5 so that the caliper 411 abuts against the cross-section of the pipe 5. The pipe wall thickness of the pipe 5 can be obtained through the scale line on the surface of the caliper 411. The inner diameter of the pipe 5 can be calculated by measuring the vertical distance between the infrared rangefinder 421 and the pipe-penetrating component 1.

[0023] It is worth noting that the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0024] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative; the division of units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; the indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0025] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A folding pipe section measuring caliper device comprising a pipe (5), characterized in that, It also includes a pipe-penetrating component (1) that passes through one end of the cross section of the pipe (5). The pipe-penetrating component (1) includes a central pipe (11) and a support ring (12). The central pipe (11) and the support ring (12) are arranged along the same axial direction. A handle (13) is fixed between the central pipe (11) and the support ring (12). The pipe-penetrating component (1) is rotatably equipped with a transmission component (2) at one end outside the pipe (5). The transmission component (2) includes a threaded rod (21). One end of the threaded rod (21) extends into the central pipe (11) and is rotatably connected to the central pipe (11). The other end of the threaded rod (21) passes through the support ring (12) and is fixed with a crank handle (22). The tube-through component (1) is provided with a foldable inner support component (3) that can expand or contract under the drive of the transmission component (2). The inner support component (3) includes a fixed ring (31) and a movable ring (32). The fixed ring (31) is fixed to the outside of the central tube (11). The movable ring (32) has a threaded sleeve (33) that is threaded to the outside of the threaded rod (21). The fixed ring (31) is hinged with a number of first support rods (34). The movable ring (32) is hinged with second support rods (35) that are distributed corresponding to the first support rods (34). A hinge seat (36) is hinged between the first support rods (34) and the second support rods (35). The inner support component (3) is provided with a measuring component (4), which includes a first measuring component (41) for measuring the wall thickness of the pipe (5) after the inner support component (3) is expanded to abut against the inner wall of the pipe (5), and a second measuring component (42) for measuring the inner diameter of the pipe (5); the first measuring component (41) includes a first caliper (412) and a caliper (411) fixed on the first caliper (412), and the caliper (411) has scale lines on its surface; the second measuring component (42) includes a second caliper (422) and an infrared rangefinder (421) fixed on the second caliper (422).

2. A folding pipe section caliper device as defined in claim 1, wherein, A rubber pad (37) is fixed to the outer surface of the hinge (36).

3. A folding pipe section caliper device as defined in claim 1 wherein, The first card holder (412) and the second card holder (422) are locked on the inner and outer sides of the hinge (36) and fixed by bolts (43).

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