Simple testing device for compressive property of pipe fitting
By designing a simple testing device, the problem of complex operation of existing equipment has been solved, enabling non-professionals to quickly test the pressure resistance of pipe fittings, thereby improving production efficiency and applicability.
Patent Information
- Application Number
- CN202520178423.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-05
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-02-05
AI Technical Summary
Existing pipe fitting pressure testing equipment is complex to operate and requires professional personnel. The lack of inspection personnel during night shifts leads to testing delays and slows down production efficiency.
A simple testing device for the compressive strength of pipe fittings was designed, including a support plate, a limiting component, a pressurizing mechanism, and a sliding component. Operators can determine whether the pipe fittings are qualified through simple steps of placing the fittings, pressing down, and observing. It is suitable for rapid testing by non-professionals.
The testing process has been simplified, making it easy for non-professionals to operate, improving production efficiency, enabling timely testing of the pressure resistance of pipe fittings, and adapting to adjustments for different pipe diameters and deformations.
Smart Images
Figure CN223955296U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to pipe fitting detection technical field more particularly, relate to a pipe fitting compression resistance performance simple and easy testing device. BACKGROUND
[0002] Compression resistance test as the core link in pipe fitting production flow, is vital to ensure pipe fitting quality and reliability.
[0003] However, compression resistance test usually needs professional inspector to operate, and current production flow faces the problem of inspector absence during night shift period, resulting in that pipe fitting sample of online production can be detected only after the next day when inspector goes to work, and the production efficiency is slowed down, and the existing detection equipment needs to use computer software to operate, and the operation difficulty is big, and non-professional production personnel are difficult to master, therefore, production personnel can not evaluate the compression resistance performance of pipe fitting in time, and the production efficiency is slowed down. UTILITY MODEL CONTENTS
[0004] The utility model aims at overcoming the problem that pipe fitting compression resistance detection device is difficult to master in prior art, and provides a pipe fitting compression resistance performance simple and easy testing device, so that production personnel can also easily operate, detect and evaluate the compression resistance performance of pipe fitting in time, and improve production efficiency.
[0005] To solve the above technical problem, the utility model adopts the technical scheme of:
[0006] Provide a kind of pipe fitting compression resistance performance simple and easy testing device, including the rack with support plate, limiting piece, install in the rack's pressurizing mechanism and install in the rack's sliding element, the pressurizing mechanism includes pressing plate, pressure rod and fixed rod, the pressing plate is parallel to the support plate, the pressing plate is slidably connected with the sliding element and sliding direction is along vertical direction, the fixed rod is connected with the rack, the pressure rod is rotatably connected with the fixed rod and its rotation axis is parallel to horizontal plane, the pressing plate is provided with support element, the support element is connected with the pressure rod, the limiting piece is connected with the sliding element or the rack, and the limiting piece is used to limit the sliding distance of the pressing plate.
[0007] The utility model discloses a pipe anti -pressure performance simple and easy testing device, in the anti -pressure performance detection of pipe, if the deformation of pipe reaches the preset value, and will not produce damage, can preliminary judge that the pipe is qualified, when the operator gets the sample of pipe, can utilize this device to the simple anti -pressure performance detection of sample, and the operator first puts the pipe sample on the support plate, then presses down the pressure rod, and the pressure rod is connected with the frame and is connected with the pressing plate through the support piece, therefore, the pressing plate will slide on the sliding part when the pressure rod is pressed down, when the bottom of the pressing plate contacts the pipe sample, the downward pressure is applied to the pipe sample, and the pipe is deformed, when the pressing plate is pressed down to the abutment of the limiting piece, the pressure rod cannot continue to press down, and the pressing plate stops moving, and the deformation of the pipe sample reaches the preset value, and then the operator observes whether the appearance of the pipe to be measured is damaged or not, so as to judge whether the anti -pressure performance of the pipe to be measured is qualified or not, the testing device is simple and easy to operate, and only needs to put, press down and observe a few steps, compared with the existing detection equipment, the computer software operation is not needed, and the production personnel can easily operate, when the inspector is not present, the anti -pressure performance of the pipe can be detected and evaluated in time by using the device, and the production efficiency is improved.
[0008] Further, the support piece includes two support plates and a support part, the support plates are fixed at the center of the top surface of the pressing plate, the support part is installed between the two pressing plates, the pressure rod is provided with a movable slot, and the support part is located in the movable slot and movably connected with the movable slot. When the pressure rod is pressed down, the pressure rod will rotate around the fixed rod, and the inner wall of the movable slot will exert a pushing force on the support part, so that the pressing plate slides on the sliding part. Since the movement track of the support part is in the vertical direction, and the movement track of the pressure rod is arc-shaped, the support part can move in the movable slot, avoiding being stuck, and the support plates are located at the center, so that the pressing plate is centered under the pressure of the support plates, avoiding tilting of the pressing plate due to uneven force, resulting in uneven pressure applied to the pipe.
[0009] Further, the distance from the end of the pressure rod away from the fixed rod to the support piece is greater than the distance from the support piece to the fixed rod. According to the lever theorem, the distance from the end of the pressure rod away from the fixed rod to the support piece is the length of the power arm, and the distance from the support piece to the fixed rod is the length of the resistance arm. The power arm is greater than the resistance arm, and it is more labor-saving and convenient to press down.
[0010] Further, the rack comprises a first column and a second column, both of which are fixedly connected with the support plate, and both of the first column and the second column are provided with through holes arranged in the vertical direction, and both ends of the fixing rod are detachably connected with the through holes on the first column and the second column.
[0011] Further, both ends of the fixing rod are slidably connected with the first column and the second column, and the fixing rod is pin-connected with the through holes. The fixing rod is slidably connected with the first column and the second column at the same time, so that the fixing rod can be kept horizontal and can slide up and down, and the pin connection can realize quick disassembly and assembly, and the time for adjustment is less.
[0012] Further, the sliding member comprises at least two guide columns, one end of the guide column is fixed on the support plate, the pressing plate is slidably connected with the guide column, and the limiting piece is installed on the guide column. The guide column is fixed on the support plate, and there are at least two guide columns, which are more stable and can bear force more evenly. The limiting piece is arranged on the guide column, and when the pressing plate slides down to the limiting piece, the limiting piece will provide support force to the pressing plate, so as to ensure that the deformation amount of the pipe fitting does not exceed the preset value.
[0013] Further, the guide column is provided with a plurality of insertion holes arranged in the vertical direction, and the limiting piece is an insertion rod, which is inserted into the insertion hole. By inserting the limiting piece into the insertion hole at different heights, the height of the limiting piece can be adjusted, so that the preset value of the deformation amount of the pipe fitting can be adjusted, and the same deformation amount can be adjusted for pipe fittings of different diameters, which is more applicable.
[0014] Further, the guide column is provided with a scale. The radii of pipe fittings of different diameters can be marked beside different insertion holes, and the information is clear and easy to understand.
[0015] Further, the support plate is further provided with two limiting blocks, which are located on both sides of the vertical plane where the pipe fitting axis is located, and the limiting blocks are used to limit the rolling of the pipe fitting. When the pipe fitting to be tested is placed on the support plate, the limiting blocks will provide limiting to the pipe fitting when the pipe fitting has a rolling tendency, so as to avoid the rolling of the pipe fitting when the pressing plate is pressed, so as to avoid the deviation of the force direction of the pipe fitting and affect the test result.
[0016] Further, the side of the limiting block in contact with the pipe is beveled, a sliding groove is formed on the supporting plate, the limiting block is in sliding connection with the sliding groove and is fixed by a fastener, and the sliding direction of the limiting block is perpendicular to the axis of the pipe. The bevel can adapt to more pipe diameters, and by adjusting the position of the limiting block in the sliding groove, the limiting block can limit pipes of different diameters, and the applicability is better.
[0017] Compared with the prior art, the pipe anti-pressure performance simple testing device has the following beneficial effects:
[0018] 1. The pressure rod drives the pressing plate to press down, and when the pressing plate abuts against the limiting piece, whether the pipe is damaged is observed to determine whether the pipe is qualified. The testing device is simple to operate, only needs to be placed, pressed down and observed, does not need to use computer software for operation compared with the prior detection equipment, and production personnel can easily operate the device. The device can be used to detect and evaluate the compression resistance of the pipe in time when the inspector is not present, and the production efficiency is improved.
[0019] 2. The first vertical column and the second vertical column are both provided with through holes distributed in the vertical direction, and the fixing rod is in pin connection with the through holes. An operator can adjust the height of the fixing rod by installing the fixing rod in different through holes before pressing to adapt to pipes of different diameters.
[0020] 3. The sliding piece includes at least two guide columns, and the limiting piece is a plug rod. The limiting piece is inserted into the insertion hole. By inserting the limiting piece into the insertion hole at different heights, the height of the limiting piece can be adjusted, so that the preset value of the deformation amount of the pipe can be adjusted, and the same deformation amount can be adjusted for pipes of different diameters, and the applicability is better.
[0021] 4. The limiting block is arranged. When the pipe to be tested is placed on the supporting plate, the limiting block can limit the pipe when the pipe has a rolling tendency, so that the pipe does not roll when the pressing plate is pressed down, the direction of the force acting on the pipe is deviated, the test result is affected, and the accuracy is better. BRIEF DESCRIPTION OF DRAWINGS
[0022] Figure 1 It is a structural schematic view of a pipe anti-pressure performance simple testing device.
[0023] Figure 2 It is a structural schematic view of a rack.
[0024] Figure 3 It is a structural schematic view of a pressing mechanism.
[0025] Figure 4 It is a structural schematic view of a limiting piece, a sliding piece, a pressing plate, a supporting plate and a limiting block.
[0026] Figure 5It is a working state schematic view of a simple pipe compression resistance testing device.
[0027] In the drawings: 100, rack; 110, first column; 120, second column; 130, third column; 140, fourth column; 150, first cross beam; 160, second cross beam; 170, support plate; 171, sliding groove; 180, through hole; 200, limiting piece; 300, pressing mechanism; 310, pressing plate; 320, pressing rod; 321, movable groove; 330, fixed rod; 340, support piece; 341, support plate; 342, support part; 400, sliding piece; 410, guide column; 411, insertion hole; 500, limiting block. DETAILED DESCRIPTION
[0028] The utility model will be further explained in connection with specific implementation. Among them, the drawings are only for example explanation, show only is the schematic diagram, and cannot be understood as the restriction of this patent; in order to better illustrate the embodiment of the utility model, some components of the drawings will be omitted, enlarged or reduced, and the size of actual product is not represented; for those skilled in the art, it is understandable that some well-known structures and their description in the drawings can be omitted.
[0029] The same or similar reference numerals in the drawings of the embodiments of the utility model correspond to the same or similar parts;In the description of the utility model, it is understood that if the orientation or position relationship indicated by the terms "upper", "lower", "left", "right" etc. is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the device or element indicated must have a particular orientation, a particular orientation and operation, therefore the position relationship description in the drawings is only for example explanation, and cannot be understood as the restriction of this patent, for the ordinary skilled in the art, the specific meaning of the above terms can be understood according to the specific situation.
[0030] Embodiment one
[0031] A simple pipe compression resistance testing device, such as Figures 1-3 and Figure 5As shown, the device comprises a rack 100, a limiting piece 200, a pressing mechanism 300 mounted on the rack 100, and a sliding piece 400 mounted on the rack 100. The rack 100 comprises a first vertical column 110, a second vertical column 120, a third vertical column 130, a fourth vertical column 140, a first horizontal beam 150, a second horizontal beam 160, and a rectangular supporting plate 170. The first horizontal beam 150 connects the first vertical column 110 and the third vertical column 130, and the second horizontal beam 160 connects the second vertical column 120 and the fourth vertical column 140. The first vertical column 110, the second vertical column 120, the third vertical column 130, and the fourth vertical column 140 are fixed to the four corners of the supporting plate 170, respectively. The first vertical column 110 and the second vertical column 120 are located on the same side of the supporting plate 170. Ten through holes 180 are arranged on the first vertical column 110 and the second vertical column 120 in a vertical direction. The pressing mechanism 300 comprises a pressing plate 310, a pressing rod 320, and a fixing rod 330. The pressing plate 310 is parallel to the supporting plate 170. The pressing plate 310 is in sliding connection with the sliding piece 400 in a vertical direction. The two ends of the fixing rod 330 are in sliding connection with the first vertical column 110 and the second vertical column 120, respectively. The fixing rod 330 is in pin connection with the through holes 180. The pressing rod 320 is in hinged connection with the fixing rod 330, and the rotating axis of the pressing rod 320 is parallel to the horizontal plane. The pressing plate 310 is provided with a supporting piece 340. The supporting piece 340 comprises two supporting plates 341 and a supporting part 342. The supporting plates 341 are fixed to the center of the top surface of the pressing plate 310. The supporting part 342 is mounted between the two pressing plates 310. The pressing rod 320 is provided with a movable groove 321. The supporting part 342 is located in the movable groove 321 and is in movable connection with the movable groove 321. In this embodiment, the supporting part 342 is a bolt assembly. The bolt passes through the holes in the two supporting plates 341 and is in threaded connection with a nut. The distance between the end of the pressing rod 320 away from the fixing rod 330 and the supporting piece 340 is greater than the distance between the supporting piece 340 and the fixing rod 330. The limiting piece 200 is connected with the sliding piece 400 or the rack 100. The limiting piece 200 is used for limiting the downward sliding distance of the pressing plate 310.
[0032] The working principle of this embodiment is as follows:
[0033] The utility model discloses a pipe fitting compression resistance simple and easy testing device, in the compression resistance detection of pipe fitting, if the deformation of pipe fitting reaches the preset value, and will not produce damage, can preliminary judge that the pipe fitting is qualified, when the operator gets the sample of pipe fitting, can utilize this device to the simple compression resistance detection of sample, and the operator first puts the pipe fitting sample on the support plate 170, then through the height of pressing plate 310 and the angle of pressing rod 320 and horizontal plane are adjusted to different through -hole 180 by adjusting fixed link 330 installation, make pressing plate 310 and pipe fitting abut, and the angle of 30 degree -45 degree is formed to pressing rod 320 and horizontal plane, then press down pressing rod 320, and pressing rod 320 will rotate around fixed link 330, and the inner wall of movable slot 321 will exert the thrust to support part 342, thereby sliding pressing plate 310 on sliding part 400, when the bottom of pressing plate 310 contacts the sample of pipe fitting, will exert the downward pressure to it, make pipe fitting deformation, as shown in the figure, when pressing plate 310 press down to the contact of limiting piece 200, pressing rod 320 cannot continue to press down, and pressing plate 310 stops moving, and the deformation of pipe fitting sample reaches the preset value, then the operator observes whether the appearance of the pipe body to be measured is damaged, thereby judging whether the compression resistance of the pipe body to be measured is qualified. Figure 5
[0034] The utility model discloses a pipe fitting compression resistance simple and easy testing device, in the compression resistance detection of pipe fitting, if the deformation of pipe fitting reaches the preset value, and will not produce damage, can preliminary judge that the pipe fitting is qualified, when the operator gets the sample of pipe fitting, can utilize this device to the simple compression resistance detection of sample, and the operator first puts the pipe fitting sample on the support plate 170, then through the height of pressing plate 310 and the angle of pressing rod 320 and horizontal plane are adjusted to different through -hole 180 by adjusting fixed link 330 installation, make pressing plate 310 and pipe fitting abut, and the angle of 30 degree -45 degree is formed to pressing rod 320 and horizontal plane, then press down pressing rod 320, and pressing rod 320 will rotate around fixed link 330, and the inner wall of movable slot 321 will exert the thrust to support part 342, thereby sliding pressing plate 310 on sliding part 400, when the bottom of pressing plate 310 contacts the sample of pipe fitting, will exert the downward pressure to it, make pipe fitting deformation, as shown in the figure, when pressing plate 310 press down to the contact of limiting piece 200, pressing rod 320 cannot continue to press down, and pressing plate 310 stops moving, and the deformation of pipe fitting sample reaches the preset value, then the operator observes whether the appearance of the pipe body to be measured is damaged, thereby judging whether the compression resistance of the pipe body to be measured is qualified.
[0035] Support plate 341 is located at the center of pressing plate 310, make pressing plate 310 be supported by the pressure of support plate 341 in the center, avoid the inclination of pressing plate 310 because of uneven force, lead to the inhomogeneous pressure that is applied to pipe fitting, adjust the height of fixed link 330 before pressing down make pressing plate 310 and pipe fitting abut, and the angle of pressing rod 320 and horizontal plane forms the angle of convenient pressing down, and the operator is more labor-saving when pressing down, and the better convenience, and fixed link 330 is simultaneously connected with the sliding of first stand 110 and second stand 120, make fixed link 330 can keep horizontal and can slide up and down, and pin connection can realize quick dismounting, and the time that adjustment spends is less, and the distance of pressing rod 320 far from the one end of fixed link 330 to support piece 340 is the length of power arm, and the distance of support piece 340 to fixed link 330 is the length of resistance arm, and power arm is greater than resistance arm, and it is more labor-saving when pressing down, and the better convenience.
[0036] In addition, fixed link 330 and first stand 110, second stand 120 can also be detachable connection mode such as screw connection, buckle connection.
[0037] Embodiment two
[0038] This embodiment is a second embodiment of a simple test device for the compression resistance of a pipe fitting. This embodiment is similar to the first embodiment, except that, as shown in Figure 1 , Figure 4 and Figure 5 , the sliding member 400 includes two guide posts 410, one end of each guide post 410 is fixed to the support plate 170 via a guide post sleeve, and the pressing plate 310 is in sliding connection with the guide posts 410. Each guide post 410 is provided with five insertion holes 411 arranged in the vertical direction, the limiting member 200 is an insertion rod, the insertion rod is inserted into the insertion hole 411, and each insertion hole 411 of the guide post 410 is marked with a scale, from top to bottom, 400, 200, 160, 125 and 110.
[0039] The working principle of this embodiment is as follows:
[0040] The deformation of the pipe fitting to be tested by the device needs to reach 50%, and pipe fittings with radii of 400mm, 200mm, 160mm, 125mm and 110mm are tested respectively. The limiting member 200 is inserted into the insertion hole 411 at different heights, and different scales correspond to different specifications of pipe fittings. The height of the limiting member 200 can be adjusted according to the specification of the pipe fitting to be tested, so that the deformation of the pipe fitting after compression reaches 50%. In addition, according to actual needs, the device can also be provided with more insertion holes 411, so as to be able to measure more other specifications of pipe fittings. Since the compression resistance of pipe fittings made of different materials is different, the preset value of the deformation can also be adjusted to 40%, 30% and the like, and the insertion hole 411 is set according to the preset value, so as to ensure that when the pressing plate 310 contacts the insertion rod, the deformation of the pipe fitting is consistent with the preset value.
[0041] The remaining working principle of this embodiment is the same as that of the first embodiment.
[0042] In addition, the sliding member 400 can also be a sliding rail fixed on the top of the support plate 170.
[0043] In addition, the limiting member 200 can also be fixed on the rack 100, which plays a role in limiting the sliding distance of the pressing plate 310.
[0044] Embodiment three
[0045] This embodiment is a third embodiment of a simple test device for the compression resistance of a pipe fitting. This embodiment is similar to the first embodiment and the second embodiment, except that, as shown in Figure 4As shown, two limiting blocks 500 are further included, sliding grooves 171 are formed through the top and bottom of the supporting plate 170, the limiting blocks 500 are in sliding connection with the sliding grooves 171 and are fixed through fasteners, the sliding direction of the limiting blocks 500 is perpendicular to the pipe axis, in this embodiment, the fasteners are nuts, the bottom of the limiting blocks 500 is provided with connecting blocks, the connecting blocks pass through the sliding grooves 171 and are in threaded connection with the nuts, the two limiting blocks 500 are respectively located on the two sides of the vertical plane where the pipe axis is located, the limiting blocks 500 are used for limiting the rolling of the pipe, in this embodiment, the limiting blocks 500 are straight triangular prisms, one surface of the limiting blocks 500 in contact with the pipe is a bevel surface, in addition, one surface of the limiting blocks 500 in contact with the pipe can also be an arc surface which is in close contact with the outer surface of the pipe.
[0046] The working principle of the embodiment is as follows:
[0047] The pipe to be tested is placed on the supporting plate 170, when the pipe has a rolling trend, the limiting blocks 500 can provide limiting for the pipe, so that the pipe does not roll when the pressing plate 310 is pressed, the direction of force of the pipe is not deviated, the test result is not affected, the accuracy is better, the bevel surface is suitable for more pipe diameters, by adjusting the position of the limiting blocks 500 in the sliding grooves 171, the limiting blocks 500 can limit the pipes with different diameters, the applicability is better.
[0048] The remaining working principles of the embodiment are consistent with those of the first and second embodiments.
[0049] In the specific contents of the above specific embodiments, each technical feature can be combined arbitrarily without contradiction, in order to make the description simple, all possible combinations of the above technical features are not described, however, as long as the combination of the technical features does not exist contradiction, it should be considered that it is within the scope of the present application.
[0050] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to enumerate all the implementation modes. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A simple device for testing the pressure resistance of a pipe fitting, characterized in that The rack (100) is provided with a supporting plate (170), a limiting piece (200), a pressing mechanism (300) installed on the rack (100) and a sliding piece (400) installed on the rack (100), the pressing mechanism (300) comprises a pressing plate (310), a pressing rod (320) and a fixed rod (330), the pressing plate (310) is parallel to the supporting plate (170), the pressing plate (310) is in sliding connection with the sliding piece (400) and the sliding direction is along the vertical direction, the fixed rod (330) is connected with the rack (100), the pressing rod (320) is in rotary connection with the fixed rod (330) and the rotary axis is parallel to the horizontal plane, the pressing plate (310) is provided with a supporting piece (340), the supporting piece (340) is connected with the pressing rod (320), the limiting piece (200) is connected with the sliding piece (400) or the rack (100), and the limiting piece (200) is used for limiting the sliding distance of the pressing plate (310) in the downward direction.
2. A simple test device for testing the pressure resistance of a pipe according to claim 1, characterized in that The supporting piece (340) comprises two supporting plates (341) and a supporting part (342), the supporting plates (341) are fixed at the center of the top surface of the pressing plate (310), the supporting part (342) is installed between the two pressing plates (310), the pressing rod (320) is provided with a movable groove (321), and the supporting part (342) is located in the movable groove (321) and in movable connection with the movable groove (321).
3. A simple test device for testing the pressure resistance of a pipe according to claim 2, characterized in that The distance from the end of the pressing rod (320) away from the fixed rod (330) to the supporting piece (340) is greater than the distance from the supporting piece (340) to the fixed rod (330).
4. The simple testing device for the compressive resistance of a pipe according to claim 1, wherein The rack (100) comprises a first vertical column (110) and a second vertical column (120), the first vertical column (110) and the second vertical column (120) are fixedly connected with the supporting plate (170), the first vertical column (110) and the second vertical column (120) are provided with through holes (180) arranged along the vertical direction, and the two ends of the fixed rod (330) are detachably connected with the through holes (180) on the first vertical column (110) and the second vertical column (120) respectively.
5. A simple test device for testing the pressure resistance of a pipe according to claim 4, characterized in that The two ends of the fixed rod (330) are in sliding connection with the first vertical column (110) and the second vertical column (120) respectively, and the fixed rod (330) is in pin connection with the through holes (180).
6. The simple device for testing the pressure resistance of a pipe according to claim 1, wherein The sliding piece (400) comprises at least two guide columns (410), one end of the guide column (410) is fixed on the supporting plate (170), the pressing plate (310) is in sliding connection with the guide column (410), and the limiting piece (200) is installed on the guide column (410).
7. A simple test device for testing the pressure resistance of a pipe according to claim 6, characterized in that The guide column (410) is provided with a plurality of insertion holes (411) arranged along the vertical direction, the limiting piece (200) is an insertion rod, and the limiting piece (200) is inserted into the insertion hole (411).
8. The simple testing device for the compressive resistance of a pipe according to claim 7, wherein, The guide column (410) is provided with a scale.
9. A simple test device for testing the pressure resistance of a pipe according to any one of claims 1-8, characterized in that Two limiting blocks (500) are arranged on the supporting plate (170), and are respectively located on two sides of a vertical plane where the pipe axis is located, and are used for limiting rolling of the pipe.
10. The simple device for testing the pressure resistance of a pipe according to claim 9, wherein One side of the limiting block (500) in contact with the pipe is a bevel, a sliding groove (171) is arranged on the supporting plate (170), the limiting block (500) is in sliding connection with the sliding groove (171) and is fixed through a fastener, and a sliding direction of the limiting block (500) is perpendicular to the axis of the pipe.