CN210401041U - PVC pipeline tensile test chuck - Google Patents
PVC pipeline tensile test chuck Download PDFInfo
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- CN210401041U CN210401041U CN201921398211.XU CN201921398211U CN210401041U CN 210401041 U CN210401041 U CN 210401041U CN 201921398211 U CN201921398211 U CN 201921398211U CN 210401041 U CN210401041 U CN 210401041U
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- tensile test
- clamping
- pvc pipeline
- thread bush
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Abstract
The utility model relates to a pipeline tensile test field specifically indicates a PVC pipeline tensile test chuck, including the interior toper post that is used for withstanding PVC pipeline internal face, at least two are used for pressing from both sides the tight lamella of clamp of the outer wall of tight PVC pipeline, the coaxial fixedly connected with main shaft of interior toper post, the screw thread has been attacked on the main shaft, the cooperation has first rotation thread bush and second rotation thread bush on the main shaft screw thread, but first rotation thread bush has cup jointed the rotation hinge cover of relative pivoted, install articulated stand on the second rotation thread bush, press from both sides tight lamella afterbody and be equipped with the extension, the extension middle part articulates on articulated stand, the one end that the extension deviates from tight lamella is connected with rotation hinge cover through pulling the arm. The utility model discloses a first rotation thread bush, second rotation thread bush, pulling arm pulling press from both sides tight lamella upset and open for press from both sides tight lamella and add and hold the bore and can transfer, and the interior top toper post of cooperation toper column body component can press from both sides the PVC pipeline of the firm different bore models and carry out tensile test.
Description
Technical Field
The utility model relates to a pipeline tensile test field specifically indicates a PVC pipeline tensile test chuck.
Background
The PVC pipeline tensile test is a test method for measuring material characteristics under the condition of bearing axial tensile load, and data obtained by the tensile test can be used for determining the elastic limit, the elongation, the elastic modulus, the proportional limit, the area reduction, the tensile strength, the yield point, the yield strength and other tensile performance indexes of the material, so that the PVC pipeline tensile test is an important performance index evaluation means of the PVC pipeline.
At present, the existing PVC pipeline tensile test chuck adopts a multi-flap fixed chuck to clamp the inner wall and the outer wall of a pipeline, only a corresponding tensile test chuck can be adopted for a single PVB pipeline, the application range is small, the flexibility is low, and therefore, an adjustable PVC pipeline tensile test chuck is designed.
SUMMERY OF THE UTILITY MODEL
Based on above problem, the utility model provides a PVC pipeline tensile test chuck.
For solving the above technical problem, the utility model discloses a technical scheme as follows:
the utility model provides a PVC pipeline tensile test chuck, including the interior toper post that pushes up the PVC pipeline internal face, two at least tight lamella that press from both sides tight PVC pipeline outer wall face that are used for pressing from both sides, the coaxial fixedly connected with main shaft of interior toper post, the screw thread has been attacked on the main shaft, the cooperation has first rotation thread bush and second rotation thread bush on the main shaft screw thread, first rotation thread bush has cup jointed the rotation hinge cover that can rotate relatively, the second rotates and installs articulated stand on the thread bush, press from both sides tight lamella afterbody and be equipped with the extension, it articulates on articulated stand to extend the piece middle part, the extension deviates from the one end that presss from both sides tight lamella and is connected with rotation hinge cover through pulling the arm.
In the utility model, the inner top conical column is a conical cylindrical member, the inner wall surface of the clamping petal is attached to the conical arc surface of the inner top conical column, the conical surface of the inner top conical column can be matched with PVC pipelines with different calibers, in addition, the number of the clamping petals used for clamping the outer wall surface of the PVC pipeline can be two, three, four or more, and when the number of the clamping petals used for clamping the outer wall surface of the PVC pipeline is two, the clamping petals are respectively arranged in 180 degrees around the axis of the inner top conical column; when the number of the clamping petals used for clamping the outer wall surface of the PVC pipeline is three, the clamping petals are respectively arranged at 120 degrees around the axis of the inner top conical column; when the number of the clamping petals used for clamping the outer wall surface of the PVC pipeline is four, the clamping petals are respectively arranged at 90 degrees around the axis of the inner top conical column.
During specific work, the inner top conical column and the second rotating threaded sleeve are fixed firstly, the first rotating threaded sleeve is rotated forwards, the first rotating threaded sleeve releases a gap between the clamping flap and the inner top conical column through the pulling arm, then a PVC pipeline is inserted into the gap between the clamping flap and the inner top conical column, the first rotating threaded sleeve is rotated backwards, the first rotating threaded sleeve pushes the clamping flap to rotate through the pulling arm, and the first rotating threaded sleeve is matched with the inner top conical column to clamp the PVC pipeline. In addition, the inner top conical column and the first rotating threaded sleeve can be fixed firstly, and then the second rotating threaded sleeve is rotated forwards or backwards to pull the clamping valve to clamp or release the PVC pipeline.
Preferably, the inner top tapered column is a tapered cylindrical member, and the inner wall surface of the clamping flap is fitted to the tapered arc surface of the inner top tapered column.
As a preferable mode, a bearing is arranged at the joint of the rotary hinge sleeve and the first rotary threaded sleeve.
Preferably, a positioning nut for limiting the first rotary threaded sleeve is screwed on the thread of the main shaft.
Preferably, the inner top conical column is provided with an annular step.
In a preferable mode, the number of the clamping flaps for clamping the outer wall surface of the PVC pipeline is two, and the two clamping flaps are respectively arranged at 180 degrees around the axis of the inner top conical column.
Preferably, three clamping flaps for clamping the outer wall surface of the PVC pipeline are arranged at 120 degrees around the axis of the inner top conical column respectively.
As a preferable mode, the number of the clamping flaps for clamping the outer wall surface of the PVC pipeline is four, and the four clamping flaps are respectively arranged around the axis of the inner top conical column at 90 degrees.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model pulls the clamping flap to turn and open through the first rotating thread sleeve, the second rotating thread sleeve and the pulling arm, so that the clamping flap can be used for holding the caliber to be adjustable, and can clamp and stabilize PVC pipelines with different calibers and models by matching with the inner top conical column of the conical columnar member to carry out the tensile test, thereby having the characteristics of large application range and high flexibility;
(2) the joint of the rotary hinge sleeve and the first rotary threaded sleeve is also provided with a bearing, so that the relative friction force between the rotary hinge sleeve and the first rotary threaded sleeve is reduced, and the rotary hinge sleeve and the first rotary threaded sleeve can rotate more flexibly;
(3) the utility model also has a positioning nut screwed on the thread of the main shaft for limiting the first rotary thread bush, thus avoiding the phenomenon that the first rotary thread bush shifts for a plurality of degrees and excessively strains the pulling arm to crush the test PVC pipeline;
(4) the utility model discloses be provided with a plurality of annular ladders on the interior toper post, a plurality of annular ladders correspond the PVC pipeline of a plurality of bore models, have increased the laminating area of PVC pipeline internal face and interior toper post to the relative frictional force of top toper post and PVC pipeline in the mode increase through increase friction area makes the PVC pipeline add to hold more firm, can apply bigger axial tension.
Drawings
Fig. 1 is a schematic structural diagram of an open state in embodiment 1.
Fig. 2 is a front view showing a closed state of embodiment 1.
Fig. 3 is a right side view of the closed state of embodiment 1.
Fig. 4 is a schematic structural view of embodiment 2.
The device comprises a main shaft 1, a positioning nut 2, a first rotating threaded sleeve 3, a second rotating threaded sleeve 4, a conical column 5, a clamping flap 6, a hinged upright column 7, a pulling arm 8 and a rotating hinged sleeve 9.
Detailed Description
The present invention will be further described with reference to the accompanying drawings. Embodiments of the present invention include, but are not limited to, the following examples.
Example 1:
referring to fig. 1-3, a PVC pipeline tensile test chuck, including the interior toper post 5 that is used for withstanding PVC pipeline internal face, at least two are used for pressing from both sides tight lamella 6 of the tight PVC pipeline outer wall face of clamp, the coaxial fixedly connected with main shaft 1 of interior toper post 5, the screw thread has been attacked on the main shaft 1, the cooperation has first rotatory thread bush 3 and second to rotate thread bush 4 on the main shaft 1 screw thread, it can relative pivoted rotation hinge cover 9 to cup joint on the first rotatory thread bush 3, install articulated stand 7 on the second rotation thread bush 4, the 6 afterbody of tight lamella of clamp is equipped with the extension, the extension middle part articulates on articulated stand 7, the one end that the extension deviates from tight lamella 6 of clamp is connected with rotation hinge cover 9 through pulling movable arm 8.
In this embodiment, the inner top tapered column 5 is a tapered cylindrical member, the inner wall surface of the clamping flap 6 is attached to the tapered arc surface of the inner top tapered column 5, the tapered surface of the inner top tapered column 5 can be used to match PVC pipes of different calibers, in addition, the number of the clamping flaps 6 for clamping the outer wall surface of the PVC pipe can be two, three, four or more, and when the number of the clamping flaps 6 for clamping the outer wall surface of the PVC pipe is two, the clamping flaps 6 are respectively arranged at 180 degrees around the axis of the inner top tapered column 5; when the number of the clamping petals 6 for clamping the outer wall surface of the PVC pipeline is three, the clamping petals 6 are respectively arranged at 120 degrees around the axis of the inner top conical column 5; when the number of the clamping flaps 6 for clamping the outer wall surface of the PVC pipeline is four, the clamping flaps 6 are respectively arranged at 90 degrees around the axis of the inner top conical column 5.
During specific work, the inner top conical column 5 and the second rotary threaded sleeve 4 are fixed firstly, the first rotary threaded sleeve 3 is rotated forwards, the first rotary threaded sleeve 3 releases a gap between the clamping flap 6 and the inner top conical column 5 through the pull arm 8, then a PVC pipeline is inserted into the gap between the clamping flap 6 and the inner top conical column 5, the first rotary threaded sleeve 3 is rotated backwards, the first rotary threaded sleeve 3 pushes the clamping flap 6 to rotate through the pull arm 8, and the first rotary threaded sleeve 3 is matched with the inner top conical column 5 to clamp the PVC pipeline tightly. In addition, the working process of clamping or releasing the PVC pipeline can be realized by fixing the inner top conical column 5 and the first rotating threaded sleeve 3 and then rotating the second rotating threaded sleeve 4 forwards or backwards to pull the clamping flap 6.
Further, the joint of the rotary hinge sleeve 9 and the first rotary threaded sleeve 3 is further provided with a bearing, so that the relative friction between the rotary hinge sleeve 9 and the first rotary threaded sleeve 3 is reduced, and the rotary hinge sleeve 9 and the first rotary threaded sleeve 3 can rotate more flexibly.
Furthermore, the positioning nut 2 for limiting the first rotating threaded sleeve 3 is screwed on the thread of the main shaft 1 in this embodiment, so as to avoid the phenomenon that the first rotating threaded sleeve 3 is displaced for many degrees and the pull arm 8 is excessively pulled to crush the test PVC pipe.
Example 2:
this embodiment is the same as embodiment 1 in other parts, and only the differences are pointed out here.
The main differences between this embodiment and embodiment 1 are: referring to fig. 2, this embodiment is provided with a plurality of annular ladders on top of the toper post 5 in, and a plurality of annular ladders correspond the PVC pipeline of a plurality of bore models, have increased the laminating area of PVC pipeline internal face and top of the toper post 5 in to the relative frictional force of top of the toper post 5 in the mode increase through increase friction area with the PVC pipeline, make the PVC pipeline add hold more firm, can apply bigger axial tension.
The embodiment of the present invention is the above. The above embodiments and the specific parameters in the embodiments are only for the purpose of clearly expressing the verification process of the utility model, and are not used to limit the patent protection scope of the present invention, the patent protection scope of the present invention is still subject to the claims, all the structural changes equivalent to the contents of the description and the drawings of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a PVC pipeline tensile test chuck, is used for pressing from both sides tight lamella (6) of the interior top toper post (5), at least two tight PVC pipeline outer wall surfaces of clamp that are used for withstanding PVC pipeline internal face, its characterized in that: interior top toper post (5) coaxial fixedly connected with main shaft (1), it has the screw thread to attack on main shaft (1), main shaft (1) is threaded to go up the cooperation and has first rotation thread bush (3) and second rotation thread bush (4), but first rotation thread bush (3) go up cup joint relative pivoted rotation hinge cover (9), install articulated stand (7) on the second rotation thread bush (4), press from both sides tight lamella (6) afterbody and be equipped with the extension, it articulates on articulated stand (7) to extend the piece middle part, the one end that the extension deviates from and presss from both sides tight lamella (6) is connected with rotation hinge cover (9) through pulling movable arm (8).
2. The PVC pipe tensile test chuck of claim 1, wherein: the inner top conical column (5) is a conical cylindrical member, and the inner wall surface of the clamping valve (6) is attached to the conical cambered surface of the inner top conical column (5).
3. The PVC pipe tensile test chuck of claim 1, wherein: and a bearing is arranged at the joint of the rotary hinge sleeve (9) and the first rotary threaded sleeve (3).
4. The PVC pipe tensile test chuck of claim 1, wherein: and a positioning nut (2) for limiting the first rotating threaded sleeve (3) is screwed on the thread of the main shaft (1).
5. The PVC pipe tensile test chuck of claim 1, wherein: and an annular step is arranged on the inner top conical column (5).
6. The PVC pipe tensile test chuck according to any one of claims 1 to 5, wherein: the two clamping flaps (6) for clamping the outer wall surface of the PVC pipeline are respectively arranged at 180 degrees around the axis of the inner top conical column (5).
7. The PVC pipe tensile test chuck according to any one of claims 1 to 5, wherein: the number of the clamping flaps (6) for clamping the outer wall surface of the PVC pipeline is three, and the clamping flaps are respectively arranged around the axis of the inner top conical column (5) in an angle of 120 degrees.
8. The PVC pipe tensile test chuck according to any one of claims 1 to 5, wherein: the number of the clamping flaps (6) for clamping the outer wall surface of the PVC pipeline is four, and the clamping flaps are respectively arranged around the axis of the inner top conical column (5) in an angle of 90 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921398211.XU CN210401041U (en) | 2019-08-26 | 2019-08-26 | PVC pipeline tensile test chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921398211.XU CN210401041U (en) | 2019-08-26 | 2019-08-26 | PVC pipeline tensile test chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210401041U true CN210401041U (en) | 2020-04-24 |
Family
ID=70338210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921398211.XU Active CN210401041U (en) | 2019-08-26 | 2019-08-26 | PVC pipeline tensile test chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210401041U (en) |
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2019
- 2019-08-26 CN CN201921398211.XU patent/CN210401041U/en active Active
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