CN221038415U - Radial stretching device of PVC pipe - Google Patents
Radial stretching device of PVC pipe Download PDFInfo
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- CN221038415U CN221038415U CN202322666737.4U CN202322666737U CN221038415U CN 221038415 U CN221038415 U CN 221038415U CN 202322666737 U CN202322666737 U CN 202322666737U CN 221038415 U CN221038415 U CN 221038415U
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- pvc pipe
- radial
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- clamping plates
- plate
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- 238000003825 pressing Methods 0.000 claims abstract description 18
- 238000009434 installation Methods 0.000 claims description 6
- 238000012360 testing method Methods 0.000 abstract description 25
- 230000000694 effects Effects 0.000 abstract description 10
- 229920000915 polyvinyl chloride Polymers 0.000 description 61
- 239000004800 polyvinyl chloride Substances 0.000 description 61
- 238000009864 tensile test Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The application discloses a radial stretching device of a PVC pipe, wherein a chute is arranged on a bottom plate, paired clamping plates are arranged in the chute in a sliding manner, a first telescopic rod is fixed between the clamping plates, when the radial stretching device is used, the PVC pipe is sleeved on the outer sides of the two clamping plates, the PVC pipe is limited and fixed for the first time through the two clamping plates, meanwhile, a pressing component positioned above the clamping plates is fixed on the bottom plate through a mounting rod, when in a stretching test, the pressing component can limit the top of the PVC pipe, the first telescopic rod is controlled to stretch so as to drive the two clamping plates to move back to back along the chute, the radial stretching degree of the PVC pipe sleeved on the outer sides of the clamping plates can react through the stretching amount of the first telescopic rod, and the matching use of the clamping plates and the pressing component can effectively improve the stretching stability of the PVC pipe in the stretching test, further improve the testing effect of the stretching test, and accurately obtain the radial tensile strength of the PVC pipe.
Description
Technical Field
The utility model relates to the technical field of PVC pipe processing and production, in particular to a radial stretching device for PVC pipe.
Background
PVC pipe is mainly composed of polyvinyl chloride, and in actual production, other components are needed to be added to enhance heat resistance, toughness and ductility. In cold and hot water direct-buried pipe engineering, a direct-buried PVC pipe can generate expansion and contraction sites due to temperature difference, axial and/or radial stretching occurs, and if the stretching performance of the PVC pipe is weaker, the phenomena of pipeline deformation, necking and cracking leakage can occur generally, so that engineering safety accidents can occur.
Therefore, after the PVC pipe is processed, radial tensile test is required to be carried out on the PVC pipe generally, but the conventional radial tensile test equipment has poor fixing effect on the PVC pipe, and the PVC pipe is easy to move in the tensile test process, so that the tensile test effect is affected.
Disclosure of utility model
The application aims to provide a radial stretching device for a PVC pipe, which aims to solve the problems that the existing radial stretching test equipment has poor fixing effect on the PVC pipe, and the PVC pipe is easy to move in the stretching test process, so that the testing effect of the stretching test is affected.
In order to solve the technical problems, the application provides a radial stretching device for PVC pipe, comprising:
the bottom plate, be provided with the spout on the bottom plate, the slip is provided with paired grip block in the spout, be fixed with first telescopic link between the grip block, be fixed with on the bottom plate through the installation pole and be located the subassembly that pushes down of grip block top, PVC pipe box locates two the outside of grip block.
As a preferable implementation mode, a sliding block is fixed below the clamping plate, the sliding block is slidably arranged in the sliding groove, and the upper side surface of the sliding block is flush with the upper side surface of the bottom plate.
The number of the first telescopic rods is two, and the two first telescopic rods are located at the upper part and the lower part of the inner side of the clamping plate.
Further, the first telescopic rod is an air cylinder.
As a preferred embodiment, the clamping plate is a semicircular clamping plate.
It should be noted that, push down the subassembly including being fixed in the diaphragm on the installation pole, the downside of diaphragm is fixed with the second telescopic link, the lower extreme of second telescopic link is fixed with the pressure disk, the radius of pressure disk is greater than the radius of grip block.
As a preferred embodiment, a groove is further formed in one side, close to the clamping plate, of the pressure plate.
It should be noted that, one side of bottom plate still is fixed with and places the platform, place the bench and be provided with the standing groove.
Compared with the prior art, the radial PVC pipe stretching device comprises a bottom plate, a chute is formed in the bottom plate, paired clamping plates are slidably arranged in the chute, a first telescopic rod is fixed between the clamping plates, when the radial PVC pipe stretching device is used, the PVC pipe is sleeved on the outer sides of the two clamping plates, the two clamping plates are used for limiting and fixing the PVC pipe for the first time, meanwhile, a pressing component positioned above the clamping plates is fixed on the bottom plate through a mounting rod, when in a stretching test, the pressing component can be used for limiting from the top of the PVC pipe, the first telescopic rod is controlled to stretch to drive the two clamping plates to move back along the chute, the radial stretching of the PVC pipe sleeved on the outer sides of the clamping plates is realized, after the stretching test is finished, the radial stretching degree of the PVC pipe can react through the stretching amount of the first telescopic rod, and the clamping plates and the pressing component are matched for use, so that the stretching stability of the PVC pipe in the stretching test can be effectively improved, the testing effect of the stretching test is improved, and the radial stretching strength of the PVC pipe is accurately obtained.
Drawings
For a clearer description of the technical solutions of the present application, the drawings that are required to be used in the embodiments will be briefly described, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without making any effort.
FIG. 1 is a schematic view of a radial drawing device for PVC pipe according to an embodiment of the present application;
Fig. 2 is a schematic diagram of an installation structure of a clamping plate and a first telescopic rod according to an embodiment of the present application;
In the figure: 1. a bottom plate; 2. a chute; 3. a clamping plate; 4. a first telescopic rod; 5. a mounting rod; 6. a slide block; 7. a cross plate; 8. a second telescopic rod; 9. a pressure plate; 10. a placement table; 11. and (5) placing a groove.
Detailed Description
In order to enable those skilled in the art to better understand the technical solutions of the present application, the following description will make clear and complete descriptions of the technical solutions of the embodiments of the present application with reference to the accompanying drawings.
The application aims to provide a radial stretching device for a PVC pipe, which can solve the problems that the existing radial stretching test equipment has poor fixing effect on the PVC pipe, and the PVC pipe is easy to move in the stretching test process, so that the testing effect of the stretching test is affected.
Fig. 1 is a schematic structural diagram of a radial drawing device for PVC pipe according to an embodiment of the present application, and fig. 2 is a schematic structural diagram of a mounting structure of a clamping plate and a first telescopic rod according to an embodiment of the present application, which is shown in fig. 1 to 2.
Example 1
The utility model provides a radial stretching device of PVC pipe, including bottom plate 1, the shape and the size of bottom plate 1 all can be confirmed according to actual conditions, be provided with spout 2 on the length direction of bottom plate 1, the both ends of spout 2 can be the shutoff setting, it is provided with paired grip block 3 to slide in spout 2, be fixed with first telescopic link 4 between two grip block 3, during the use, need establish the PVC pipe box in the outside of two grip block 3, can drive two grip block 3 and move in opposite directions through controlling the extension of first telescopic link 4, and then realize the radial stretching operation to the PVC pipe, be fixed with the subassembly that pushes down that is located grip block 3 top on bottom plate 1 through installation pole 5, the accessible pushes down the subassembly and pushes down spacingly from the upper end of PVC pipe, can effectively improve the radial stretching operation stability and the experimental accuracy of detecting of PVC pipe. It should be noted that the upper end contact force of the pressing component and the PVC pipe needs to be smaller than the deformation force of radial stretching of the PVC pipe by the first telescopic rod 4, that is, the setting of the pressing component needs to be based on the normal stretching test of the PVC pipe.
Example 2
In order to improve the moving stability of the clamping plate 3, in this embodiment, preferably, a sliding block 6 is fixed below the clamping plate 3, the sliding block 6 and the clamping plate 3 are integrally formed, after being installed, the sliding block 6 is slidably arranged in the sliding groove 2, the upper side surface of the sliding block 6 is flush with the upper side surface of the bottom plate 1, and when in use, the sliding block 6 is driven to slide along the sliding groove 2 through the extension of the first telescopic rod 4, so that the movement of the clamping plate 3 is realized.
On the basis of example 2, as a preferred embodiment, in order to improve the radial stretching uniformity of the PVC pipe, preferably, two first telescopic rods 4 may be disposed between the clamping plates 3, after the installation, the two first telescopic rods 4 may be respectively located at the upper and lower parts of the inner sides of the clamping plates 3, of course, a first telescopic rod 4 may be disposed at the middle part of the two clamping plates 3, after the test is finished, the radial tensile strength of the PVC pipe may be represented by the elongation of the 3 first telescopic rods 4, the average value of the elongation of the 3 first telescopic rods 4 may be taken, and the radial tensile strength at different positions of the PVC pipe may also be represented by the elongation of the first telescopic rods 4 at different points. In this embodiment, preferably, the first telescopic rod 4 may be a cylinder.
Example 3
In order to facilitate improvement of the degree of adhesion of the PVC pipe to the clamping plate 3 and to improve the radial tensile test effect, preferably, both clamping plates 3 may be provided as semicircular clamping plates. The outer circumference of the semicircular clamping plate is attached to the inner side wall of the PVC pipe.
In order to improve the limiting stability of the downward pressing of the PVC pipe, in the embodiment, preferably, the downward pressing component comprises a transverse plate 7 fixed on the mounting rod 5, the transverse plate 7 and the mounting rod 5 are integrally formed to be of a structure, the transverse plate 7 is located above the clamping plate 3, a second telescopic rod 8 is fixed on the lower side of the transverse plate 7, a pressing plate 9 is fixed at the lower end of the second telescopic rod 8, the radius of the pressing plate 9 is larger than that of the clamping plate 3, and when the PVC pipe is used, the pressing plate 9 is driven to be downward pressed to be in contact with the upper end of the PVC pipe sleeved on the clamping plate 3 by controlling the elongation of the second telescopic rod 8, so that the limiting fixation of the PVC pipe is realized, but the pressure of the pressing plate 9 to the PVC pipe is required to be in order not to influence the radial stretching test of the PVC pipe.
In order to improve the stability of the downward pressing limit of the PVC pipe, a groove is preferably further provided on the side of the pressure plate 9 close to the clamping plate 3, the upper end of the PVC pipe is located in the groove, which is not shown in the figure, and the radius of the groove is larger than that of the PVC pipe.
On the basis of the above embodiment, in order to facilitate storage of the test sample, preferably, a placement table 10 is further fixed on one side of the bottom plate 1, and a placement groove 11 is provided on the placement table 10, and when in use, the PVC pipe sample can be stored in the placement groove 11, and the shapes and sizes of the placement table 10 and the placement groove 11 can be determined according to practical situations.
According to the radial stretching device for the PVC pipe, the working principle is that when the radial stretching device is used, the PVC pipe is sleeved on the outer sides of the two clamping plates 3, the PVC pipe is limited and fixed for the first time through the two clamping plates 3, meanwhile, the limiting can be carried out from the top of the PVC pipe through the pushing-down assembly, the first telescopic rod 4 is controlled to stretch to drive the two clamping plates 3 to move back to back along the sliding groove 2, the radial stretching of the PVC pipe sleeved on the outer sides of the clamping plates 3 is achieved, after the stretching test is finished, the radial stretching degree of the PVC pipe can be reacted through the stretching amount of the first telescopic rod 4, the stretching stability of the PVC pipe in the stretching test can be effectively improved through the cooperation of the clamping plates 3 and the pushing-down assembly, the testing effect of the stretching test is improved, and the radial stretching strength of the PVC pipe is accurately obtained.
Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope of the application being indicated by the following claims.
It is to be understood that the application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The embodiments of the present application described above do not limit the scope of the present application.
Claims (8)
1. A radial drawing device for PVC pipe, comprising:
bottom plate (1), be provided with spout (2) on bottom plate (1), the spout (2) is slided and is provided with paired grip block (3), be fixed with first telescopic link (4) between grip block (3), be fixed with on bottom plate (1) through installation pole (5) and be located the subassembly pushes down of grip block (3) top, the PVC pipe box is located two the outside of grip block (3).
2. The radial drawing device for PVC pipe according to claim 1, wherein a sliding block (6) is fixed below the clamping plate (3), the sliding block (6) is arranged in the sliding groove (2) in a sliding manner, and the upper side surface of the sliding block (6) is flush with the upper side surface of the bottom plate (1).
3. The PVC pipe radial stretching apparatus according to claim 2, wherein the number of the first telescopic rods (4) is two, and the two first telescopic rods (4) are located at the inner upper and lower portions of the clamping plate (3).
4. A radial drawing device for PVC pipes according to claim 3, characterised in that the first telescopic rod (4) is a cylinder.
5. A radial drawing device for PVC pipe according to claim 1, wherein the clamping plate (3) is a semicircular clamping plate.
6. The radial drawing device of PVC pipe according to claim 5, wherein the pressing assembly includes a cross plate (7) fixed to the mounting bar (5), a second telescopic bar (8) is fixed to the lower side of the cross plate (7), a pressing plate (9) is fixed to the lower end of the second telescopic bar (8), and the radius of the pressing plate (9) is larger than the radius of the clamping plate (3).
7. Radial drawing device for PVC pipes according to claim 6, characterized in that the pressure plate (9) is also provided with grooves on the side close to the clamping plate (3).
8. PVC pipe radial stretching apparatus according to any of claims 1 to 7, wherein a placement table (10) is further fixed to one side of the base plate (1), the placement table (10) being provided with a placement groove (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322666737.4U CN221038415U (en) | 2023-10-07 | 2023-10-07 | Radial stretching device of PVC pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322666737.4U CN221038415U (en) | 2023-10-07 | 2023-10-07 | Radial stretching device of PVC pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221038415U true CN221038415U (en) | 2024-05-28 |
Family
ID=91135233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322666737.4U Active CN221038415U (en) | 2023-10-07 | 2023-10-07 | Radial stretching device of PVC pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221038415U (en) |
-
2023
- 2023-10-07 CN CN202322666737.4U patent/CN221038415U/en active Active
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