Special clamp for pull-out test of silicon core pipe
By using a combined structure of outer ring sleeve, inner jig, fastening column, tooth ring and elastic components in the silicon core tube pulling test fixture, the problems of existing jigs are solved, and the accuracy of silicon core tubes is achieved Fixed and stable detection.
Patent Information
- Application Number
- CN202420671656.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-02
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-02
AI Technical Summary
Existing silicon core tube pulling test fixtures are prone to dissipation and looseness during use, resulting in distortion of test data or damage to the equipment, especially when external shaking or high tension.
A special fixture for the drawing test of silicon core tubes including outer ring sleeves and inner fixtures is designed. The combination of fastening columns, tooth rings, elastic components and anti-slip textures is used to ensure the accuracy of the position of the silicon core tubes in the tensile test. Fixed and provide continuous support through elastic components to prevent loosening.
The stable and reliable fixing of the silicon core tube is achieved, which avoids test data distortion and equipment damage, ensures the firmness of the fixing during the inspection process, and can withstand the influence of vibration and external forces.
Smart Images
Figure CN222188987U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fixtures for silicon core tube tests, in particular to a special fixture for silicon core tube pulling tests. Background Art
[0002] As we all know, the silicone core tube is a high-density polyethylene-silicon composite pipe with a silicone solid lubricant on the inner wall. It has good sealing performance, chemical corrosion resistance, and low engineering cost. It is widely used in optical cable communication network systems such as highways and railways. The performance indicators of the silicone core tube, such as tensile strength and longitudinal shrinkage, need to be obtained through tensile tests. Tensile test refers to a test method for measuring material properties under axial tensile load, which is a common test method. During the tensile test, it is necessary to clamp the two ends of the silicone core tube sample on the tensile testing machine through a special fixture. However, the existing special fixture will cause slippage when the tension is too large during use, and it will become loose due to external shaking during use. The test data is distorted or the equipment is damaged due to the movement of the pipe. Therefore, it is necessary to propose a solution to this technical problem. Utility Model Content
[0003] 1. Technical issues to be resolved
[0004] In view of the deficiencies in the prior art, the utility model provides a special fixture for silicon core tube pulling test.
[0005] (II) Technical solution
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a special fixture for silicon core tube pulling test, comprising an outer ring sleeve and an inner fixture body, the top of the outer ring sleeve is provided with a washer and a gear ring, the inner fixture body is provided with a threaded layer and a connecting mechanism, one end of the inner fixture body is provided with a tapered ring, the threaded layer is provided with a nut, the nut is provided with a fastening box, the top of the fastening box is provided with a fastening hole, the fastening hole is connected to the bottom end of the nut, a fastening groove is provided between the fastening hole and the inside of the fastening box, a fastening column is provided on the fastening hole, a fastening plate is provided between the fastening groove and the fastening column, an elastic component is provided between the fastening plate and the fastening groove, and a tooth head is provided at the bottom end of the fastening column.
[0007] Furthermore, the utility model is improved in that the connecting mechanism includes a pin hole, and the pin hole is opened on the inner clamp body.
[0008] Furthermore, the utility model is improved in that two fastening grooves are provided and are symmetrically arranged.
[0009] Furthermore, the utility model is improved in that two fastening boxes are provided and are symmetrically arranged.
[0010] Furthermore, the utility model is improved in that the outer surface of the conical ring is provided with anti-slip grooves.
[0011] Furthermore, the utility model is improved in that a handle is provided on the outer side of the nut.
[0012] Furthermore, the utility model is improved in that the elastic component is a spring.
[0013] Furthermore, the utility model is improved in that the anti-slip pattern is a diamond knurled structure.
[0014] (III) Beneficial effects
[0015] Compared with the prior art, the utility model provides a special fixture for silicon core tube pulling test, which has the following beneficial effects:
[0016] This special fixture for silicon-core tube pulling test achieves all-round tight fitting of the inner and outer surfaces of the silicon-core tube by combining the inner fixture body with the outer ring sleeve, ensuring the precise fixation of the position of the silicon-core tube during the test and avoiding distortion of test data or equipment damage due to tube movement. The coordination of the tooth head and tooth ring of the fastening column and the design of the elastic component jointly construct a stable and reliable fastening system. During the process of tightening the nut, the silicon-core tube obtains sufficient clamping force, and after the nut is fixed, the elastic component can also provide continuous support to prevent the nut from loosening due to vibration or external force, ensuring the firm fixation of the silicon-core tube during the entire testing process. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the structure of the utility model;
[0018] Figure 2 For this utility model Figure 1 A half-section front view of the enlarged structure of the middle fastening box;
[0019] Figure 3 For this utility model Figure 1 A half-section top view of the enlarged structure of the middle fastening box;
[0020] Figure 4 For this utility model Figure 1 Half-section top view of the enlarged structure of the middle gear ring.
[0021] In the figure: 1. outer ring sleeve; 2. inner clamp body; 3. washer; 4. gear ring; 5. threaded layer; 6. tapered ring; 7. nut; 8. fastening box; 9. fastening groove; 10. fastening column; 11. fastening plate; 12. elastic component; 13. tooth head; 14. pin hole; 15. anti-slip pattern; 16. handle. DETAILED DESCRIPTION
[0022] 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.
[0023] See also Figure 1-4 The utility model is a special fixture for silicon core tube pulling test, comprising an outer ring sleeve 1 and an inner fixture body 2, the top of the outer ring sleeve 1 is provided with a washer 3 and a toothed ring 4, the inner fixture body 2 is provided with a threaded layer 5 and a connecting mechanism, one end of the inner fixture body 2 is provided with a conical ring 6, the threaded layer 5 is provided with a nut 7, the nut 7 is provided with a fastening box 8, the top of the fastening box 8 is provided with a fastening hole, the fastening hole is connected to the bottom end of the nut 7, a fastening groove 9 is provided between the fastening hole and the inside of the fastening box 8, a fastening column 10 is provided on the fastening hole, a fastening plate 11 is provided between the fastening groove 9 and the fastening column 10, an elastic component 12 is provided between the fastening plate 11 and the fastening groove 9, and a tooth head 13 is provided at the bottom end of the fastening column 10. In this embodiment, the inner fixture body 2 is first placed in the test tube The inner surface of the material is inserted into the outer ring sleeve 1, and then the outer ring sleeve 1 is installed on the outside of the tested pipe. Then the fastening column 10 is pulled, so that one end of the fastening column 10 drives the tooth head 13 to enter the inner surface of the fastening hole. The elastic component 12 in the fastening groove 9 is squeezed and contracted by the fastening plate 11, and then the nut 7 is rotated to tighten. During the tightening process, the nut 7 lifts the inner clamp body 2 and presses down the outer ring sleeve 1, so that the inner and outer surfaces of the pipe are finally closely fitted with the outer ring sleeve 1 and the conical ring 6, and the silicon core tube is fastened. Then, it is convenient to connect with the tensile machine through the connecting mechanism, and then the fastening column 10 is loosened, so that the elastic component 12 supports the fastening plate 11, so that the fastening plate 11 drives the fastening column 10 to move, and the tooth head 13 at one end of the fastening column 10 is meshed against the tooth ring 4, so that the nut 7 is firmly and reliably fixed, and will not be loosened due to shaking, etc., thereby ensuring the firmness of the fixation of the silicon core tube.
[0024] In this solution, the connection mechanism includes a pin hole 14, and the pin hole 14 is provided on the inner fixture body 2. The pin hole 14 facilitates personnel to connect the inner fixture body 2 to the tensile machine using parts.
[0025] In this solution, two fastening grooves 9 are provided and are symmetrically arranged. The elastic components 12 in the two symmetrically arranged fastening grooves 9 can make the fastening column 10 more stably fixed.
[0026] In this solution, two fastening boxes 8 are provided and are symmetrically arranged. The two symmetrically arranged fastening boxes 8 can more firmly fix the nut 7.
[0027] In this solution, the outer surface of the tapered ring 6 is provided with anti-skid patterns 15, which can improve the anti-skid performance of the tapered ring 6, increase the friction resistance on its surface and increase the locking force.
[0028] In this solution, a handle 16 is provided on the outer side of the nut 7 , and a person can rotate the nut 7 by holding the handle 16 .
[0029] In this solution, the elastic component 12 is a spring, which has the characteristic of good elasticity, so it can stably and reliably support the fastening plate 11.
[0030] In this solution, the anti-slip pattern 15 is a diamond knurled structure, which can increase its friction resistance and achieve an anti-slip effect.
[0031] Although 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 special fixture for silicon core tube pulling test, comprising an outer ring sleeve (1) and an inner fixture body (2), characterized in that: The top of the outer ring sleeve (1) is provided with a washer (3) and a gear ring (4), the inner clamp body (2) is provided with a threaded layer (5) and a connecting mechanism, one end of the inner clamp body (2) is provided with a conical ring (6), the threaded layer (5) is provided with a nut (7), the nut (7) is provided with a fastening box (8), the top of the fastening box (8) is provided with a fastening hole, the fastening hole is connected to the bottom end of the nut (7), a fastening groove (9) is provided between the fastening hole and the inside of the fastening box (8), a fastening column (10) is provided on the fastening hole, a fastening plate (11) is provided between the fastening groove (9) and the fastening column (10), an elastic component (12) is provided between the fastening plate (11) and the fastening groove (9), and a tooth head (13) is provided at the bottom end of the fastening column (10).
2. A special fixture for silicon core tube pulling test according to claim 1, characterized in that: The connection mechanism comprises a pin hole (14), and the pin hole (14) is provided on the inner clamp body (2).
3. A special fixture for silicon core tube pulling test according to claim 2, characterized in that: The fastening grooves (9) are provided with two and are symmetrically arranged.
4. A special fixture for silicon core tube pulling test according to claim 3, characterized in that: The fastening boxes (8) are provided with two and are symmetrically arranged.
5. A special fixture for silicon core tube pulling test according to claim 4, characterized in that: The outer surface of the conical ring (6) is provided with anti-slip grooves (15).
6. A special fixture for silicon core tube pulling test according to claim 5, characterized in that: A handle (16) is provided on the outer side of the nut (7).
7. A special fixture for silicon core tube pulling test according to claim 6, characterized in that: The elastic component (12) is a spring.
8. A special fixture for silicon core tube pulling test according to claim 7, characterized in that: The anti-slip pattern (15) is in the form of a diamond knurling structure.