A pipe wall testing device for PE pipe production
By introducing a combination structure of baffle, tie rod and torsion spring into the PE pipe testing device, the measurement error caused by the change of the sliding sleeve position is solved, high-precision pipe wall thickness measurement is achieved, and the accuracy and reliability of the measurement results are ensured.
Patent Information
- Authority / Receiving Office
- CN Β· China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JILIN CHANGDE NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-05-26
Smart Images

Figure CN224285886U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe wall thickness testing equipment, specifically a pipe wall testing device for PE pipe production. Background Technology
[0002] In the field of PE pipe production, pipe wall thickness is a key indicator for measuring product quality, and accurate testing is crucial to ensuring pipe performance and safety in use.
[0003] When placing pipes, the sliding sleeve of a conventional plastic pipe wall thickness measuring instrument is prone to positional shifts due to external impacts or the force of the pipe during placement. This positional shift directly leads to a deviation in the measurement reference, resulting in significant measurement errors and severely impacting the accuracy and reliability of the test results. Utility Model Content
[0004] The purpose of this invention is to provide a pipe wall testing device for PE pipe production, so as to solve the problem mentioned in the background art that conventional plastic pipe wall thickness measuring instruments are inconvenient to constrain the sliding sleeve when placing the pipe.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a pipe wall inspection device for PE pipe production, comprising a base, a thickness gauge, a vertical plate, and a pair of support rods for supporting pipe materials. The support rods are fitted with sliding sleeves, and the vertical plate is provided with a plurality of positioning grooves for accommodating the support rods. A baffle is rotatably mounted on the top of the base via a rotating shaft, and a pull rod is movably mounted at the center of the baffle. The other end of the pull rod extends to contact the vertical plate, and an elastic member connects the rotating shaft and the baffle.
[0006] Preferably, a pair of mounting ears are fixedly installed on the top of the base, the rotating shaft is rotatably installed between the pair of mounting ears, the elastic member is a torsion spring sleeved on the rotating shaft, and the two ends of the torsion spring are in contact with the baffle and the mounting ears respectively.
[0007] Preferably, one side of the mounting ear is provided with a slot for receiving the torsion spring.
[0008] Preferably, the baffle has a sliding hole at the center for accommodating the pull rod, and the upright plate near the pull rod has a U-shaped groove for accommodating the pull rod.
[0009] Preferably, the pull rod has a double-headed T-shaped structure.
[0010] Preferably, an elastic plate is fixedly installed on the top of the base, and the elastic plate has an arc-shaped segment adapted to the pull rod.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] This utility model, through the cooperation of a baffle, a pull rod, and a torsion spring, allows the baffle to rotate and contact the sliding sleeve when the sample is placed on the sliding sleeve. This prevents the sliding sleeve from shifting due to external force collisions or impacts during pipe placement, thus avoiding measurement errors and improving measurement accuracy. Furthermore, the structure is simple and the operation is convenient, bringing convenience to pipe wall testing. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the first state of this utility model;
[0014] Figure 2 This is a three-dimensional structural diagram of the second state of this utility model;
[0015] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention without the support rod installed;
[0016] Figure 4 This is an enlarged three-dimensional structural diagram of the connection between the mounting ear and the baffle of this utility model.
[0017] In the diagram: 1. Base; 2. Thickness gauge; 3. Vertical plate; 4. Support rod; 5. Sliding sleeve; 6. Baffle; 7. Elastic plate; 8. Tie rod; 9. Sliding hole; 10. Mounting ear; 11. Torsion spring; 12. Positioning groove. 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] Please see Figures 1-4This utility model provides a technical solution: a pipe wall testing device for PE pipe production, including a base 1, a thickness gauge 2, a vertical plate 3, and a pair of support rods 4 for supporting the pipe. The thickness gauge 2 is equipped with a high-precision digital display dial indicator to read the wall thickness data of the pipe. It is equipped with a measuring arm balancing and locking device to ensure that the contact between the measuring arm and the pipe wall reaches an ideal state, ensuring the accuracy of the measurement data. A sliding sleeve 5 is fitted on the support rod 4. During measurement, the pipe needs to be placed on the pair of sliding sleeves 5, which are equipped with rubber sleeves to increase friction. Then, the pipe and the sliding sleeves 5 are pushed together to approach the thickness gauge 2. The vertical plate 3 is provided with several positioning grooves 12 for accommodating the support rods 4 to accommodate samples of different pipe diameters. A baffle 6 is rotatably mounted on the top of the base 1 via a rotating shaft. A pair of mounting ears 10 are fixedly mounted on the top of the base 1, and the rotating shaft is rotatably mounted on the pair of mounting ears 10. Between them, a pull rod 8 is movably installed at the center of the baffle 6. The pull rod 8 has a double-headed T-shaped structure. The center of the baffle 6 has a sliding hole 9 for accommodating the pull rod 8. The upright plate 3 on the side near the pull rod 8 has a U-shaped groove for accommodating the pull rod 8. The advantage of this design is that it is convenient to limit the position of the pull rod 8. The other end of the pull rod 8 extends to contact the upright plate 3. An elastic component is connected between the rotating shaft and the baffle 6. The elastic component is a torsion spring 11 sleeved on the rotating shaft. The two ends of the torsion spring 11 contact the baffle 6 and the mounting ear 10 respectively. One side of the mounting ear 10 has a slot for accommodating the torsion spring 11. An elastic plate 7 is fixedly installed on the top of the base 1. The elastic plate 7 has an arc-shaped section that matches the pull rod 8. The elastic plate 7 is engaged with the pull rod 8. The advantage of this design is that when the pull rod 8 is not needed, it can be locked into the elastic plate 7 for positioning.
[0020] When testing the pipe wall thickness, first slide the sliding sleeve 5 until its end contacts the vertical plate 3. Then pull the pull rod 8. The T-shaped end of the pull rod 8 drives the baffle 6 to rotate and compress the torsion spring 11. After the baffle 6 rotates to contact the sliding sleeve 5, insert the end of the pull rod 8 away from the baffle 6 into the U-shaped groove of the vertical plate 3. Then place the pipe to be tested above a pair of sliding sleeves 5, ensuring that the pipe end is in contact with the baffle 6. After the sample is placed, remove the pull rod 8 from the U-shaped groove. The torsion spring 11 releases its elastic potential energy, which drives the baffle 6 to rotate and reset, without affecting the sliding of the pipe on the support rod 4. Then push the sample to cooperate with the thickness gauge 2 to test the wall thickness of different depths of the inner wall of the sample. The purpose of this setting is that when the measuring arm performs wall thickness testing on different depths of the inner wall of the pipe, it can measure with the same benchmark, reduce measurement errors caused by the position change of the sliding sleeve 5, and improve measurement accuracy.
[0021] This application utilizes the cooperation of baffle 6, pull rod 8 and torsion spring 11 to rotate baffle 6 to contact slide sleeve 5 when placing sample on slide sleeve 5. This prevents slide sleeve 5 from changing position due to external force collision or impact force when placing pipe, thus improving measurement accuracy. The structure is simple and easy to operate, bringing convenience to pipe wall testing.
[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0023] 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 claims and their equivalents.
Claims
1. A pipe wall inspection device for PE pipe production, characterized in that: The device includes a base (1), a thickness gauge (2), a vertical plate (3), and a pair of support rods (4) for supporting the support material. The support rods (4) are fitted with sliding sleeves (5). The vertical plate (3) is provided with several positioning grooves (12) for accommodating the support rods (4). A baffle (6) is rotatably installed on the top of the base (1) via a rotating shaft. A pull rod (8) is movably installed at the center of the baffle (6). The other end of the pull rod (8) extends to contact the vertical plate (3). An elastic member connects the rotating shaft and the baffle (6).
2. The pipe wall inspection device for PE pipe production according to claim 1, characterized in that: A pair of mounting ears (10) are fixedly installed on the top of the base (1), and the rotating shaft is rotatably installed between the pair of mounting ears (10). The elastic member is a torsion spring (11) sleeved on the rotating shaft, and the two ends of the torsion spring (11) are in contact with the baffle (6) and the mounting ears (10) respectively.
3. The pipe wall inspection device for PE pipe production according to claim 2, characterized in that: The mounting ear (10) has a slot on one side for receiving the torsion spring (11).
4. The pipe wall inspection device for PE pipe production according to claim 1, characterized in that: The baffle (6) has a sliding hole (9) at the center for accommodating the pull rod (8), and the upright plate (3) near the pull rod (8) has a U-shaped groove for accommodating the pull rod (8).
5. The pipe wall inspection device for PE pipe production according to claim 1, characterized in that: The pull rod (8) has a double-headed T-shaped structure.
6. The pipe wall inspection device for PE pipe production according to claim 1, characterized in that: An elastic plate (7) is fixedly installed on the top of the base (1), and the elastic plate (7) is provided with an arc-shaped segment that is compatible with the pull rod (8).