Testing device for plastic pipe test

Abstract

The utility model relates to the technical field of plastic pipeline testing, and discloses a plastic pipe testing device which comprises a base and a mounting table rotationally connected to the top of the base, and further comprises fixed rods fixed to the left side and the right side of the top of the mounting table, and movable frames are arranged on the upper side and the lower side of the surface of each fixed rod. A positioning structure is arranged in the movable frame; the mounting strip is fixed to the surface of the right movable frame, a through groove is formed in the surface of the mounting strip, and a first measuring block is rotationally connected into the through groove; aiming at the deformation condition of the pipeline during detection, the device adjusts the shape of the test block, can avoid the contact between the test rod and the inner wall of the pipeline in the test process so as to carry out a deformation test, is also provided with double stations, and can carry out transposition adjustment according to the inner diameter of the tested pipeline so as to adapt to different test conditions, so that the test efficiency is improved. The practicability of the device is effectively improved, and convenience is provided for testing work of workers.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic pipe testing, in particular to a plastic pipe material testing device. Background Art

[0002] Plastic pipes are a material widely used in industry, especially in building water supply and drainage, urban gas transportation, cable and wire sheathing, chemical fluid transportation, etc. These application environments usually require the pipes to be able to withstand a certain external pressure. Therefore, the ring stiffness of the pipe (that is, its ability to resist external pressure load) is a key performance indicator. Ring stiffness testing is an important means to evaluate the quality of plastic pipes. Through ring stiffness testing, it can be determined whether the pipe can maintain its shape and structural stability when subjected to external pressure, thereby ensuring its reliability and safety in actual use.

[0003] At present, a large deformation device needs to be installed in the ring stiffness test. In order to simulate and test the large deformation that plastic pipes may experience under actual use conditions, the ultimate bearing capacity and deformation characteristics of the pipes can be understood by gradually increasing the external force until the pipes are significantly deformed. Most of the current test devices are test rods and test blocks that are rotatably connected to the surface of the test rods to test plastic pipes. However, after the test blocks of the existing test devices come into contact with the inner wall of the pipe, the test rods will also come into contact with the inner wall of the pipe, which will cause the test rods to jam the pipes to support the inner wall of the pipes when the pipes are deformed, thereby affecting the final test results, especially when testing corrugated pipes. Utility Model Content

[0004] The purpose of the utility model is to provide a plastic pipe test device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a plastic pipe test device, comprising a base and a mounting table rotatably connected to the top of the base, and also comprising:

[0006] A fixed rod is fixed on the left and right sides of the top of the mounting platform, and a movable frame is arranged on the upper and lower sides of the surface of the fixed rod, and a positioning structure is arranged inside the movable frame;

[0007] A mounting bar is fixed on the surface of the right movable frame, and a through groove is provided on the surface of the mounting bar. A first measuring block is rotatably connected inside the through groove. A mounting rod is fixed on the surface of the left movable frame, and a fixed block is fixed on one end of the mounting rod away from the movable frame, and a second measuring block is rotatably connected to one side of the fixed block.

[0008] Preferably, the first measuring block extends to the outside of the through slot, and the first measuring block is in contact with and slidably connected to the inner wall of the through slot.

[0009] Preferably, the positioning structure includes a groove opened on the front side of the movable frame, a block slidably connected to one side of the inner wall of the groove, a slot opened on one side of the inner wall of the groove and on the surface of one side of the block, a threaded rod penetrating one side of the movable frame, and a turning handle fixed to one end of the threaded rod, and the threaded rod is threadedly connected to the movable frame.

[0010] Preferably, the diameter of the inner wall of the clamping groove is the same as the diameter of the fixing rod, and the end of the threaded rod away from the rotating handle is rotatably connected to the surface of the clamping block.

[0011] Preferably, an anti-skid pad is bonded to the surface of the inner wall of the card slot, the material of the anti-skid pad is rubber, and the surface of the anti-skid pad is provided with anti-skid textures.

[0012] Preferably, positioning grooves are provided on both the left and right sides of the top of the base, a positioning block is fixed to the surface of one side of the mounting platform, a fixing pin is provided through the top of the positioning block, and the fixing pin is threadedly connected to the positioning block, and the bottom end of the fixing pin extends to the inside of the left positioning groove and is slidably connected to the inner wall of the positioning groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model aims at the situation that the pipeline is deformed during detection. The device adjusts the shape of the test block, which can avoid the contact between the test rod and the inner wall of the pipeline during the test, so as to carry out the deformation test. The test device is also provided with a double station, which can be adjusted according to the inner diameter of the tested pipeline to adapt to different test conditions, effectively improving the practicability of the device and providing convenience for the testing work of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a three-dimensional schematic diagram of the installation strip in the utility model;

[0017] Figure 3 It is a three-dimensional schematic diagram of the installation rod in the utility model;

[0018] Figure 4 It is a three-dimensional schematic diagram of the movable frame in the utility model.

[0019] In the figure: 1. base; 2. mounting table; 3. fixing rod; 4. movable frame; 5. positioning structure; 51. groove; 52. clamping block; 53. clamping slot; 54. threaded rod; 55. turning handle; 6. mounting strip; 7. through slot; 8. first measuring block; 9. mounting rod; 10. fixing block; 11. second measuring block; 12. positioning slot; 13. positioning block; 14. fixing pin; 15. anti-slip pad. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 As shown, a plastic pipe testing device comprises a base 1, the top of the base 1 is rotatably connected to a mounting platform 2, fixing rods 3 are fixed to the left and right sides of the top of the mounting platform 2, movable frames 4 are arranged on the upper and lower sides of the surface of the fixing rod 3, a positioning structure 5 is arranged inside the movable frame 4, a mounting bar 6 is fixed to the surface of the right movable frame 4, a through groove 7 is opened on the surface of the mounting bar 6, a first measuring block 8 is rotatably connected inside the through groove 7, a mounting rod 9 is fixed to the surface of the left movable frame 4, a fixing block 10 is fixed to one end of the mounting rod 9 away from the movable frame 4, and a second measuring block 11 is rotatably connected to one side of the fixing block 10.

[0022] The first measuring block 8 extends to the outside of the through groove 7, and the first measuring block 8 is in contact with the inner wall of the through groove 7 and is slidably connected with the inner wall of the through groove 7. When the first measuring block 8 enters the interior of the plastic pipe to be inspected, the first measuring block 8 will directly contact the inner wall of the pipe, and the first measuring block 8 will move after deformation occurs.

[0023] The positioning structure 5 includes a groove 51, a block 52, a groove 53, a threaded rod 54 and a handle 55. The groove 51 is arranged on the front side of the movable frame 4. The block 52 is slidably connected to one side of the inner wall of the groove 51. The groove 53 is arranged on one side of the inner wall of the groove 51 and on the surface of one side of the block 52. The threaded rod 54 is penetrated and arranged on one side of the movable frame 4, and the threaded rod 54 and the movable frame 4 are threadedly connected. The handle 55 is fixed to one end of the threaded rod 54. The diameter of the inner wall of the groove 53 is the same as the diameter of the fixed rod 3. The end of the threaded rod 54 away from the handle 55 is rotatably connected to the surface of the block 52. When the handle 55 is rotated, the handle 55 drives the threaded rod 54 to rotate, so that the threaded rod 54 drives the block 52 to move left and right inside the groove 51, so as to adjust the height of the movable frame 4.

[0024] The surface of the inner wall of the card slot 53 is bonded with an anti-skid pad 15, the material of the anti-skid pad 15 is rubber, and the surface of the anti-skid pad 15 is provided with anti-skid texture. When the card block 52 moves to fit the surface of the fixed rod 3, the anti-skid pad 15 can improve the positioning effect of the movable frame 4 and prevent the movable frame 4 from moving during the test.

[0025] Positioning grooves 12 are provided on the left and right sides of the top of the base 1, and a positioning block 13 is fixed to the surface of one side of the mounting platform 2. A fixing pin 14 is provided on the top of the positioning block 13, and the fixing pin 14 is threadedly connected to the positioning block 13. The bottom end of the fixing pin 14 extends to the inside of the left positioning groove 12 and is slidably connected to the inner wall of the positioning groove 12. The staff rotates the mounting platform 2 according to the test needs, and uses the first measuring block 8 or the second measuring block 11 to detect the pipe according to the inner diameter of the plastic pipe. After the adjustment is completed, the staff can insert the fixing pin 14 into the corresponding positioning groove 12 to position the mounting platform 2.

[0026] Working principle: When the staff conducts ring stiffness test on the plastic pipe, the staff takes out the device, and then rotates the mounting table 2 according to the inner diameter of the plastic pipe to be tested, and then extends the mounting bar 6 or the mounting rod 9 into the plastic pipe. The staff then rotates the handle 55 on the corresponding side to adjust the distance between the mounting bars 6 or the mounting rods 9, so that the first measuring block 8 or the second measuring block 11 fits with the inner wall of the pipe, and then pressure can be applied to the tested pipe. When the inside of the pipe is deformed, the first measuring block 8 or the second measuring block 11 will move, thereby completing the test operation of the plastic pipe.

[0027] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic pipe test device, comprising a base (1) and a mounting platform (2) rotatably connected to the top of the base (1), characterized in that: Also includes: A fixed rod (3) is fixed on the left and right sides of the top of the mounting platform (2), and a movable frame (4) is arranged on the upper and lower sides of the surface of the fixed rod (3), and a positioning structure (5) is arranged inside the movable frame (4); A mounting bar (6) is fixed on the surface of the right movable frame (4), the surface of the mounting bar (6) is provided with a through slot (7), the interior of the through slot (7) is rotatably connected to a first measuring block (8), a mounting rod (9) is fixed on the surface of the left movable frame (4), a fixed block (10) is fixed at one end of the mounting rod (9) away from the movable frame (4), and a second measuring block (11) is rotatably connected to one side of the fixed block (10).

2. A plastic pipe test device according to claim 1, characterized in that: The first measuring block (8) extends to the outside of the through slot (7), and the first measuring block (8) is in contact with the inner wall of the through slot (7) and is slidably connected to the inner wall of the through slot (7).

3. A plastic pipe test device according to claim 1, characterized in that: The positioning structure (5) comprises a groove (51) provided on the front side of the movable frame (4), a clamping block (52) slidably connected to one side of the inner wall of the groove (51), a clamping groove (53) provided on one side of the inner wall of the groove (51) and on one side surface of the clamping block (52), a threaded rod (54) penetrating one side of the movable frame (4), and a rotating handle (55) fixed to one end of the threaded rod (54), wherein the threaded rod (54) is threadedly connected to the movable frame (4).

4. A plastic pipe test device according to claim 3, characterized in that: The diameter of the inner wall of the clamping groove (53) is the same as the diameter of the fixing rod (3), and one end of the threaded rod (54) away from the rotating handle (55) is rotatably connected to the surface of the clamping block (52).

5. A plastic pipe test device according to claim 3, characterized in that: An anti-skid pad (15) is bonded to the surface of the inner wall of the card slot (53); the anti-skid pad (15) is made of rubber, and the surface of the anti-skid pad (15) is provided with anti-skid patterns.

6. A plastic pipe test device according to claim 1, characterized in that: The left and right sides of the top of the base (1) are provided with positioning grooves (12); a positioning block (13) is fixed to the surface of one side of the mounting platform (2); a fixing pin (14) is provided through the top of the positioning block (13); the fixing pin (14) is threadedly connected to the positioning block (13); the bottom end of the fixing pin (14) extends to the inside of the left positioning groove (12) and is slidably connected to the inner wall of the positioning groove (12).

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