Clamp for tensile test of communication pipeline
By designing a tensile test fixture for communication pipelines, the combination of an annular sliding sleeve and sliding clamping blocks solves the problems of unstable and non-universal clamping of traditional clamps, and stable clamping and efficient detection of pipes of different sizes are achieved.
Patent Information
- Application Number
- CN202421222915.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-05-31
AI Technical Summary
The traditional communication pipeline overall tensile test fixture has problems such as unstable clamping, non-universal, and time-consuming operation, resulting in poor accuracy and timeliness of data results.
A clamping mechanism including an annular sliding sleeve, a sliding clamping block, an annular spring and a cover plate is designed, and connected to the universal testing machine through a pre-fixed mechanism. By using the cooperation of the annular sliding sleeve and a sliding clamping block, a clamping space suitable for communication pipes of different sizes is formed.
The stable clamping of the communication pipeline is achieved, the accuracy of the test data and the detection efficiency are improved, and the risk of the pipeline falling off on the fixture is avoided.
Smart Images
Figure CN223021722U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tensile test fixtures, and particularly relates to a fixture for the tensile test of communication pipelines. Background Art
[0002] In the tests of traffic engineering materials, the overall tensile test of the maximum traction load of communication pipelines is a crucial detection index, which represents the overall structural strength and flexibility of the pipelines and is also one of the important parameters for judging the quality of communication pipelines.
[0003] Currently, the biggest problems in the overall tensile test of communication pipelines are the non-uniformity, non-generality, inability to hold, great clamping difficulty, and long time consumption of traditional fixtures, which will ultimately lead to poor accuracy and timeliness of the obtained data results. Communication pipelines generally use silicon core plastic pipes. The inner walls of silicon core plastic pipes are smooth and the pipe diameters are different. At present, there is no overall tensile fixture in the known field that can both clamp the pipelines well and meet various inner diameters. Summary of the Utility Model
[0004] In order to solve the problems of poor clamping stability and time-consuming and laborious operation of the existing fixtures, the present application provides a fixture for the tensile test of communication pipelines.
[0005] To achieve the above object, the technical solution adopted in the present application is: a fixture for the tensile test of communication pipelines, comprising: a connecting member for connecting with a universal testing machine; a clamping mechanism, the clamping mechanism includes an annular sliding sleeve, a plurality of sliding clamping blocks, an annular spring and a cover plate. An accommodating space for accommodating a plurality of sliding clamping blocks is formed in the annular sliding sleeve. The accommodating space is a frustum of a cone structure. The cover plate is arranged at one end of the annular sliding sleeve. The inner diameter of the annular sliding sleeve on the side far from the cover plate is greater than the inner diameter of the annular sliding sleeve on the side close to the cover plate. The plurality of sliding clamping blocks are evenly spaced on the annular spring. The outer side wall of the sliding clamping block abuts against the inner side wall of the annular sliding sleeve, and the sliding clamping block can reciprocate along the inner side wall of the annular sliding sleeve. The plurality of sliding clamping blocks are used to form an annular clamping space for accommodating a communication pipeline. The clamping mechanism is connected to the connecting member through a pre-fixing mechanism, and the pre-fixing mechanism is used to push the plurality of sliding clamping blocks away from the cover plate.
[0006] In some embodiments of the present utility model, the above pre-fixing mechanism includes an adapter sleeve, a push plate and a push rod. The adapter sleeve is a cylindrical structure. The two ends of the adapter sleeve are respectively connected to the connecting member and the cover plate. The push plate is slidably arranged in the annular sliding sleeve and can reciprocate along the axial direction of the annular sliding sleeve. The push rod passes through the cover plate, and one end of the push rod located in the annular sliding sleeve is connected to the push plate. A limiting chute is opened on the adapter sleeve, and the opening direction of the limiting chute is parallel to the central axis of the adapter sleeve.
[0007] In some embodiments of the present utility model, a holding cross bar is provided at one end of the push rod away from the push plate, and the holding cross bar is slidably arranged in the limit sliding groove.
[0008] In some embodiments of the present utility model, an anti-slip groove is formed on one side of the sliding clamping block away from the annular sliding sleeve.
[0009] In some embodiments of the present utility model, the cover plate and the annular sliding sleeve are connected by screws. The screws sequentially pass through the cover plate and the annular sliding sleeve, and the screws are threadedly connected to the annular sliding sleeve.
[0010] In some embodiments of the present utility model, a rotating stop block is sleeved on the connecting sleeve, and the rotating stop block is threadedly connected to the connecting sleeve.
[0011] Compared with the prior art, the embodiments of the present utility model have at least the following advantages or beneficial effects:
[0012] 1. A connecting piece capable of being quickly connected to a universal testing machine is provided at the end, which is convenient for quickly fixing the communication pipeline to be tested on the testing machine, and improves the detection efficiency.
[0013] 2. The inner side wall of the above-mentioned annular sliding sleeve is an inclined surface opened inward, and the inner diameter of the annular sliding sleeve gradually increases from outside to inside. The inner side wall of the annular sliding sleeve is adapted to the outer side wall of the sliding clamping block. The outer side wall of the sliding clamping block is tightly attached to the inner side wall of the annular sliding sleeve through an annular spring. A clamping space is formed by enclosing multiple sliding clamping blocks in the center. When clamping a communication pipeline, a pipe plug is pre-placed in the pipeline, and then the communication pipeline is extended into the clamping space to abut against the cover plate. The clamping space is continuously reduced to be adapted to the communication pipeline of this model through a pre-fixing mechanism. When a tensile force is applied to the connecting piece by the testing machine, the sliding clamping block slides outward along the annular sliding sleeve, and the clamping space is continuously reduced, so that the clamping becomes more stable as the tensile force increases, which is convenient for obtaining the tensile test data of the communication pipeline. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0015] Figure 1 Structural schematic of the embodiment of the present utility model Figure 1 ;
[0016] Figure 2 Structural schematic of the embodiment of the present utility model Figure 2 ;
[0017] Figure 3 The bottom view of the embodiment of the present utility model;
[0018] Figure 4 is Figure 3 the cross-sectional view of the A-A section in
[0019] Figure 5 the schematic diagram of the internal structure of the annular sliding sleeve of the embodiment of the present utility model.
[0020] In the figure: 1 - connecting piece; 2 - annular sliding sleeve; 3 - sliding clamping block; 4 - annular spring; 5 - cover plate; 6 - clamping space; 7 - connecting sleeve; 8 - push plate; 9 - push rod; 10 - limiting chute; 11 - anti-slip groove; 12 - screw; 13 - holding cross bar; 14 - rotating stopper. Detailed implementation manners
[0021] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. Usually, the components of the embodiments of the present application described and illustrated in the drawings here can be arranged and designed in various different configurations.
[0022] Therefore, the detailed description of the embodiments of the present application provided in the drawings below is not intended to limit the scope of the present application claimed, but merely represents the selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.
[0023] It should be noted that: like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0024] In the description of the present application, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship in which the product of this application is usually placed during use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present application. In addition, in the description of the present application, if terms such as "first", "second", etc. are used only for distinguishing descriptions, they cannot be understood as indicating or implying relative importance.
[0025] In addition, terms such as "horizontal" and "vertical" in the description of this application do not require the components to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.
[0026] In the description of this application, it should also be noted that unless otherwise clearly specified and limited, if terms such as "set", "installed", "connected", and "connected" appear, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.
[0027] Embodiment 1:
[0028] Please refer to Figures 1 - 5 , this embodiment provides a fixture for a tensile test of a communication pipeline, including: a connector 1 for connecting to a universal testing machine; a clamping mechanism, the clamping mechanism includes an annular sliding sleeve 2, a plurality of sliding clamping blocks 3, an annular spring 4 and a cover plate 5. An accommodation space for accommodating a plurality of sliding clamping blocks 3 is formed in the annular sliding sleeve 2. The accommodation space is a frustum of a cone structure. The cover plate 5 is arranged at one end of the annular sliding sleeve 2. The inner diameter of the annular sliding sleeve 2 on the side away from the cover plate 5 is larger than the inner diameter of the annular sliding sleeve 2 on the side close to the cover plate 5. A plurality of sliding clamping blocks 3 are evenly spaced on the annular spring 4. The outer side wall of the sliding clamping block 3 abuts against the inner side wall of the annular sliding sleeve 2, and the sliding clamping block 3 can reciprocate along the inner side wall of the annular sliding sleeve 2. A plurality of sliding clamping blocks 3 are used to form an annular clamping space 6 for accommodating the communication pipeline. The clamping mechanism is connected to the connector 1 through a pre-fixing mechanism, and the pre-fixing mechanism is used to push a plurality of sliding clamping blocks 3 away from the cover plate 5.
[0029] In this embodiment, the above-mentioned connector 1 is used to quickly connect the entire test fixture to a universal testing machine, facilitating the quick fixing of the communication pipeline to be tested on the testing machine and improving the detection efficiency.
[0030] In this embodiment, the above-mentioned clamping mechanism is used to clamp the communication pipeline to be tested. It should be noted that when the communication pipeline is subjected to a tensile test, since the pipeline is a hollow structure, a pipe plug is pre-filled at the end of the pipeline. The above-mentioned clamping mechanism can stably clamp the communication pipeline equipped with the pipe plug.
[0031] Specifically, the above-mentioned annular sliding sleeve 2 is of an annular structure. The outer sidewall of the annular sliding sleeve 2 is parallel to the central axis of the annular sliding sleeve 2. The inner sidewall of the annular sliding sleeve 2 forms an angle of 10° - 30° with the central axis of the annular sliding sleeve 2. Preferably, the angle is 15°. The inclination of the outer surface of the sliding clamping block 3 is consistent with the inner sidewall of the annular sliding sleeve 2. It should be noted that the cavity formed in the annular sliding sleeve 2 is of a frustum of a cone structure, and the side with a smaller area of the frustum of a cone structure is away from the cover plate 5. Thus, the inner diameter of the annular sliding sleeve 2 away from the cover plate 5 gradually decreases. When the sliding clamping block 3 moves along the inner sidewall of the annular sliding sleeve 2 towards the side away from the cover plate 5, the clamping space 6 formed by the sliding clamping block 3 continuously shrinks, facilitating the tensile test of communication pipes of various different sizes. During the test, when pulling the communication pipe through the friction force between the inner sidewall of the sliding clamping block 3 and the outer sidewall of the communication pipe, the sliding clamping block 3 is driven to continue moving towards the end away from the cover plate 5, so that the clamping space 6 is squeezed, and the clamping of the communication pipe is more stable, effectively avoiding the communication pipe from falling off the fixture and greatly improving the clamping stability.
[0032] Among them, the above-mentioned annular spring 4 is used to expand the annular slider and abut it against the inner sidewall of the annular sliding sleeve 2 outwardly, facilitating the annular spring 4 to return to its original length after the test, thus facilitating secondary clamping.
[0033] Please refer to Figures 1 - 5 , in some implementation manners of this embodiment, the above-mentioned pre-fixing mechanism includes an adapter sleeve 7, a push plate 8 and a push rod 9. The adapter sleeve 7 is of a cylindrical structure. The two ends of the adapter sleeve 7 are respectively connected to the connecting member 1 and the cover plate 5. The push plate 8 is slidably arranged in the annular sliding sleeve 2, and the push plate 8 can reciprocate along the axial direction of the annular sliding sleeve 2. The push rod 9 passes through the cover plate 5, and one end of the push rod 9 located in the annular sliding sleeve 2 is connected to the push plate 8. A limiting chute 10 is opened on the adapter sleeve 7, and the opening direction of the limiting chute 10 is parallel to the central axis of the adapter sleeve 7.
[0034] In this embodiment, the above-mentioned adapter sleeve 7 is used to connect the above-mentioned cover plate 5 and the connecting member 1 and is used to accommodate the push rod 9. The above-mentioned push rod 9 is used to drive the push plate 8. The movement of the push plate 8 moves the communication pipe and the sliding clamping block 3 towards the side away from the cover plate 5, so that the clamping space 6 shrinks, and the inner sidewall of the sliding clamping block 3 abuts against the outer sidewall of the communication pipe, thereby realizing the pre-fixing of the communication pipe. After pre-fixing, through the stretching of the universal testing machine, the friction force formed between the outer wall of the communication pipe and the inner sidewall of the sliding clamping block 3 pulls the communication pipe and the sliding clamping block 3, so that the clamping space 6 shrinks again, realizing the secondary fixing of the communication pipe, further improving its clamping stability and also avoiding the communication pipe from falling off the fixture during subsequent pulling. The above-mentioned limiting chute 10 is used to provide a space for the operator to manipulate the push rod 9.
[0035] Please refer to Figures 1 - 5 , in some embodiments of this embodiment, a holding cross bar 13 is provided at one end of the push rod 9 away from the push plate 8, and the holding cross bar 13 is slidably arranged in the limit sliding groove 10.
[0036] In this embodiment, the above-mentioned holding cross bar 13 is used for the user to hold by hand, which is convenient for applying a thrust to the push rod 9 and improving the convenience of pre-fixing the communication pipeline.
[0037] Please refer to Figure 1 , Figure 4 and Figure 5 , in some embodiments of this embodiment, an anti-slip groove 11 is formed on one side of the sliding clamping block 3 away from the annular sliding sleeve 2.
[0038] It should be noted that the above-mentioned anti-slip groove 11 is an arc-shaped groove body, and the anti-slip grooves 11 at the same height form an annular groove body, and the central axis of this annular groove body coincides with the central axis of the annular sliding sleeve 2. In this embodiment, the above-mentioned anti-slip groove 11 is used to increase the friction between the communication pipeline and the sliding clamping block 3, thereby improving the clamping stability of the fixture.
[0039] Please refer to Figure 2 , in some embodiments of this embodiment, the cover plate 5 and the annular sliding sleeve 2 are connected by screws 12, and the screws 12 pass through the cover plate 5 and the annular sliding sleeve 2 in sequence, and the screws 12 are threadedly connected to the annular sliding sleeve 2.
[0040] In this embodiment, the cover plate 5 and the annular sliding sleeve 2 are detachably connected by screws 12, which is convenient for overhauling and replacing the sliding clamping block 3 and the annular spring 4 installed in the annular sliding sleeve 2, and improves the convenience of overhauling and replacing parts.
[0041] Please refer to Figures 1 - 5 , in some embodiments of this embodiment, a rotating stop block 14 is sleeved on the connecting sleeve 7, and the rotating stop block 14 is threadedly connected to the connecting sleeve 7.
[0042] In this embodiment, the rotating stop block 14 is threadedly connected to the connecting sleeve 7, and the spiral side effect between the connecting sleeve 7 and the rotating stop block 14 realizes the conversion of rotational motion and linear motion. By driving the rotating stop block 14 through a screw, the rotating stop block 14 can move along the central axis direction of the connecting sleeve 7, thereby pushing the holding cross bar 13 to slide along the opening direction of the limit sliding groove 10.
[0043] In use, the two ends of the communication pipeline to be tested are respectively inserted into the corresponding pipe plugs, and the two ends of the communication pipeline are respectively inserted into the clamping spaces 6 of the corresponding fixtures. Hold the holding cross bar 13 with the hand and push the holding cross bar 13 towards the cover plate 5. The push plate 8 pushes the sliding clamping block 3 in the direction away from the cover plate 5. As the clamping space 6 continuously shrinks and the push plate 8 is difficult to move further, stop. Connect the connecting piece 1 to the clamping mechanisms at the upper and lower ends of the universal testing machine respectively, start the universal testing machine. As the tensile force continuously increases, the clamping space 6 is continuously compressed, making the clamping of the communication pipeline more stable. Finally, the tensile test data value of the communication pipeline can be obtained.
[0044] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A clamp for a communication pipeline tensile test, characterized in that: include: A connector (1) for connecting to a universal testing machine; The clamping mechanism comprises an annular sleeve (2), a plurality of sliding clamping blocks (3), an annular spring (4) and a cover plate (5); a receiving space for receiving the plurality of sliding clamping blocks (3) is formed in the annular sleeve (2); the receiving space is a truncated cone structure; the cover plate (5) is arranged at one end of the annular sleeve (2); the inner diameter of the side of the annular sleeve (2) away from the cover plate (5) is larger than the inner diameter of the side of the annular sleeve (2) close to the cover plate (5); the plurality of sliding clamping blocks (3) are evenly spaced. The partition is arranged on the annular spring (4), the outer wall of the sliding clamping block (3) abuts against the inner wall of the annular sleeve (2), and the sliding clamping block (3) can reciprocate along the inner wall of the annular sleeve (2), and a plurality of the sliding clamping blocks (3) are used to form an annular clamping space (6), and the annular clamping space (6) is used to accommodate the communication pipeline. The clamping mechanism is connected to the connecting member (1) through a pre-fixing mechanism, and the pre-fixing mechanism is used to push the plurality of sliding clamping blocks (3) away from the cover plate (5).
2. A clamp for communication pipeline tensile test according to claim 1, characterized in that: The pre-fixing mechanism comprises a connecting sleeve (7), a push plate (8) and a push rod (9); the connecting sleeve (7) is a cylindrical structure; the two ends of the connecting sleeve (7) are respectively connected to the connecting member (1) and the cover plate (5); the push plate (8) is slidably arranged in the annular sleeve (2); the push plate (8) can reciprocate along the axial direction of the annular sleeve (2); the push rod (9) is passed through the cover plate (5); the push rod (9) is located at one end of the annular sleeve (2) and is connected to the push plate (8); a limiting groove (10) is provided on the connecting sleeve (7); the opening direction of the limiting groove (10) is parallel to the central axis of the connecting sleeve (7).
3. A clamp for communication pipeline tensile test according to claim 2, characterized in that: A holding cross bar (13) is provided at one end of the push rod (9) away from the push plate (8), and the holding cross bar (13) is slidably disposed in the limiting sliding groove (10).
4. A clamp for communication pipeline tensile test according to claim 1, characterized in that: An anti-slip groove (11) is provided on a side of the sliding clamping block (3) away from the annular sliding sleeve (2).
5. A clamp for communication pipeline tensile test according to claim 1, characterized in that: The cover plate (5) and the annular sleeve (2) are connected via screws (12), the screws (12) are sequentially inserted into the cover plate (5) and the annular sleeve (2), and the screws (12) are threadedly connected to the annular sleeve (2).
6. A clamp for communication pipeline tensile test according to claim 2, characterized in that: A rotating stopper (14) is sleeved on the connecting sleeve (7), and the rotating stopper (14) is threadedly connected to the connecting sleeve (7).