A sand pack model tube
Through innovative design of the clamping and stabilizing structures, the problems of uneven clamping and easy slippage in traditional devices have been solved, achieving efficient and reliable clamping and stable support of pipelines, adapting to various experimental platforms, and improving the efficiency and stability of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU SHILI PETROLEUM SCI RES INSTR CO LTD
- Filing Date
- 2025-09-15
- Publication Date
- 2026-06-05
AI Technical Summary
Traditional sand-filling model devices lack synchronous clamping and flexible contact design, resulting in uneven clamping force, easy slippage of pipes or surface damage, affecting the normal use and working efficiency of the device.
The design incorporates a clamping and stabilizing structure, including the linkage between the bidirectional lead screw and the rotating plate, the mechanical interlock of the clamping plate and the flexible contact of the rubber pad, and the installation of silicone friction pads and rubber protective pads on the base, ensuring uniform clamping and stable support of the pipe.
It achieves rapid and uniform clamping and long-term stability of the pipeline, prevents slippage and surface damage, adapts to platforms of different sizes, resists vibration and fluid impact, and ensures experimental stability.
Smart Images

Figure CN224327971U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of clamping and stabilizing systems for sand-filled model tubes, specifically a sand-filled model tube. Background Technology
[0002] With the development of fields such as civil engineering, geological exploration, and petroleum engineering, the requirements for the accuracy, stability, and adaptability of sand-filled model experiments are increasing.
[0003] Traditional devices lack synchronous clamping and flexible contact design, resulting in uneven clamping force, easy slippage of pipes or surface damage. Over time, this affects the normal use of the device and thus its working efficiency. Utility Model Content
[0004] The purpose of this utility model is to provide a sand-filled model pipe to solve the problem that traditional devices lack synchronous clamping and flexible contact design, resulting in uneven clamping force, easy slippage of the pipe or surface damage, which in the long run affects the normal use of the device and thus affects the working efficiency of the device.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model relates to a sand-filled model pipe, comprising a base and a pipe. The pipe is fixedly connected to the surface of the base, and a clamping structure is provided on the surface of the pipe. The clamping structure includes a round rod, the surface of which is fixedly connected to the surface of the pipe. A connecting plate is fixedly connected to one end of the round rod. A groove is formed on the surface of the connecting plate, and a bidirectional lead screw is slidably connected to the inner wall of the groove. A clamping plate is slidably connected to the inner wall of the groove, and the surface of the clamping plate is threadedly connected to the arc surface of the bidirectional lead screw. A rotating plate is fixedly connected to one end of the bidirectional lead screw, and a bolt is rotatably connected to the surface of the rotating plate. One end of the bolt is threadedly connected to the surface of the connecting plate. The round rod connects the pipe and the connecting plate, fixing the clamping structure to the surface of the pipe. The connecting plate provides an installation base for the groove and the bidirectional lead screw, serving as the frame component of the clamping structure. The groove restricts the sliding direction of the clamping plate, ensuring its linear movement. The bidirectional lead screw drives the two clamping plates to move synchronously in opposite directions through rotation, achieving the clamping and releasing of the pipe. The rotating plate provides a rotation operating point for the bidirectional lead screw, facilitating manual adjustment of the clamping force. The bolts allow the rotating plate to be secured after the pipe is clamped by the clamping plate, preventing the double-ended screw from rotating due to vibration or external force and ensuring long-term clamping stability. The clamping plate design allows for direct contact and clamping of the core components of the pipe, enhancing the clamping effect.
[0007] Furthermore, a protrusion is fixedly connected to the surface of the clamping plate, and a recess is formed on the surface of the clamping plate. The size of the protrusion matches the size of the recess. A pad made of rubber is fixedly connected to the surface of the clamping plate. The protrusion and recess design allows the protrusion to engage with the recess of the other clamping plate when the two clamping plates are closed, forming a mechanical interlocking structure to prevent the pipe from sliding laterally during the experiment and improve clamping accuracy. The pad allows the rubber pad to directly contact the pipe surface, increasing friction to prevent slippage and avoiding surface wear or indentations caused by hard contact between the metal clamping plate and the pipe.
[0008] Furthermore, a fixing block is fixedly connected to the surface of the clamping plate, and a connecting rod is slidably connected to the surface of the fixing block. The fixing block and the connecting rod are arranged so that the fixing block is symmetrically distributed on the surfaces of the two clamping plates, and the connecting rod passes through it, further restricting the relative displacement of the clamping plates and ensuring that the two clamping plates move synchronously during clamping, avoiding unilateral displacement.
[0009] Furthermore, the base surface is provided with a stabilizing structure, which includes a connecting column. A groove is formed on the surface of the connecting column, and a sliding plate is slidably connected to the inner wall of the groove. A bidirectional screw is rotatably connected to the inner wall of the groove, and the arc surface of the bidirectional screw is threadedly connected to the surface of the sliding plate. One end of the bidirectional screw is fixedly connected to an extension plate, and a fixing rod is rotatably connected to the surface of the extension plate. One end of the fixing rod is threadedly connected to the surface of the connecting column. A square block is fixedly connected to the surface of the sliding plate. The extension plate and fixing rod provide a rotation point for the bidirectional screw. The fixing rod is tightened after the sliding plate is adjusted to the correct position, locking the bidirectional screw through its threaded connection with the connecting column to prevent its rotation from causing the sliding plate to loosen. The connecting column is fixed to the base surface, providing an installation carrier for the stabilizing structure. Its internal groove accommodates the bidirectional screw and the sliding plate. The groove defines the sliding path of the sliding plate. The bidirectional screw drives the two sliding plates to slide in opposite directions along the groove by rotation, adjusting the extension length of the square block to adapt to experimental platforms of different sizes. The sliding plate moves the square block, achieving a "locking" effect between the base and the edge of the platform.
[0010] Furthermore, a friction pad made of silicone is fixedly connected to the surface of the square block. The silicone friction pad significantly increases surface friction, preventing the base from shifting due to vibration or fluid impact during the experiment, thus improving overall stability.
[0011] Furthermore, a protective pad made of rubber is fixedly connected to the surface of the skateboard. This protective pad adheres to the surface of the skateboard, preventing direct collision between the metal skateboard and the connecting post when the skateboard retracts into the groove, thus reducing wear and noise.
[0012] This utility model has the following beneficial effects:
[0013] This invention, through its clamping structure and the linkage between the bidirectional lead screw and the rotating plate, enables the clamping plates to move synchronously in opposite directions along the slide groove, thus achieving the beneficial effects of rapid and uniform clamping and long-term stable fixation of the pipeline. The rotating plate drives the bidirectional lead screw to rotate, and the threaded engagement causes the two clamping plates to move synchronously closer along the slide groove until the rubber pad adheres to the pipeline surface. Subsequently, the bolts are tightened to secure the rotating plate and prevent the lead screw from rotating on its own. The rigid frame formed by the round rod and the connecting plate ensures the stability of the clamping structure. The mechanical interlocking design of the protrusion and concave restricts the axial displacement of the pipeline, while the flexible contact of the rubber pad increases friction to prevent slippage and avoids damage to the pipeline surface from the metal clamping plates. Overall, this design achieves efficient and reliable clamping.
[0014] This invention, through the design of a stable structure and the operation of a bidirectional screw and sliding plate adjustment mechanism, enables the square block to self-adaptively lock onto the edge of the experimental platform, thus achieving the beneficial effects of stable support and vibration protection for the base on platforms of different sizes. Rotating the bidirectional screw on the extension plate drives the symmetrically distributed sliding plates to slide in the opposite direction along the groove of the connecting column, causing the square block to extend and contact the edge of the platform; the silicone friction pad increases the friction of the contact surface, and finally, the screw position is locked by the fixing rod. The cooperation between the groove and the bidirectional screw ensures the precise sliding trajectory of the sliding plate, the friction pad significantly improves the adhesion between the base and the platform, and the protective pad buffers the impact when the sliding plate resets. This design allows the device to quickly adapt to various experimental platform sizes and effectively resists displacement caused by fluid impact or vibration through the "locking" and shock-absorbing structure, ensuring experimental stability.
[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the clamping structure in this utility model;
[0019] Figure 3 This is a schematic diagram of the stable structure in this utility model;
[0020] Figure 4This is a schematic diagram of the stabilizing structure from another angle in this utility model;
[0021] The attached diagram lists the components represented by each number as follows:
[0022] In the diagram: 1. Base; 2. Pipe; 3. Clamping structure; 31. Connecting plate; 32. Slide groove; 33. Two-way lead screw; 34. Rotating plate; 35. Clamping plate; 36. Protrusion; 37. Notch; 38. Pad; 39. Fixing block; 310. Connecting rod; 311. Round rod; 312. Bolt; 4. Stabilizing structure; 41. Connecting column; 42. Groove; 43. Two-way lead screw; 44. Slide plate; 45. Square block; 46. Friction pad; 47. Protective pad; 48. Extension plate; 49. Fixing rod. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figure 1 - Figure 4As shown, this utility model is a sand-filled model pipe, including a base 1 and a pipe 2. The pipe 2 is fixedly connected to the surface of the base 1. A clamping structure 3 is provided on the surface of the pipe 2. The clamping structure 3 includes a round rod 311, the surface of which is fixedly connected to the surface of the pipe 2. A connecting plate 31 is fixedly connected to one end of the round rod 311. A groove 32 is formed on the surface of the connecting plate 31. A bidirectional screw rod 33 is slidably connected to the inner wall of the groove 32. A clamping plate 35 is slidably connected to the inner wall of the groove 32. The surface of the clamping plate 35 is threadedly connected to the arc surface of the bidirectional screw rod 33. A rotating plate 34 is fixedly connected to one end of the bidirectional screw rod 33. A bolt 312 is rotatably connected to the surface of the rotating plate 34. One end of the bolt 312 is threadedly connected to the surface of the connecting plate 31. The round rod 311 connects the pipe 2 and the connecting plate 31, fixing the clamping structure 3 to the surface of the pipe. The connecting plate 31 provides an installation base for the groove 32 and the bidirectional screw rod 33, and is a frame component of the clamping structure. The sliding groove 32 restricts the sliding direction of the clamping plate 35, ensuring its linear movement. The bidirectional screw 33 drives the two clamping plates 35 to move synchronously in opposite directions via rotation, achieving the clamping and loosening of the pipeline. The rotating plate 34 provides a rotation operating point for the bidirectional screw 33, facilitating manual adjustment of the clamping force. The bolt 312 allows the rotating plate 34 to be fixed after the clamping plate 35 has clamped the pipeline, preventing the bidirectional screw 33 from rotating due to vibration or external force, thus ensuring long-term clamping stability. The clamping plate 35 directly contacts and clamps the core components of the pipeline, enhancing the clamping effect.
[0025] A protrusion 36 is fixedly connected to the surface of the clamping plate 35, and a recess 37 is formed on the surface of the clamping plate 35. The size of the protrusion 36 matches the size of the recess 37. A pad 38, made of rubber, is fixedly connected to the surface of the clamping plate 35. The arrangement of the protrusion 36 and the recess 37 allows the protrusion 36 to engage with the recess 37 of the other clamping plate when the two clamping plates 35 are closed, forming a mechanical interlocking structure to prevent the pipe from sliding laterally during the experiment and improve clamping accuracy. The pad 38 allows the rubber pad 38 to directly contact the pipe surface, increasing friction to prevent slippage and avoiding surface wear or indentations caused by hard contact between the metal clamping plate and the pipe.
[0026] A fixing block 39 is fixedly connected to the surface of the clamping plate 35, and a connecting rod 310 is slidably connected to the surface of the fixing block 39. The fixing block 39 and the connecting rod 310 are arranged so that the fixing block 39 is symmetrically distributed on the surfaces of the two clamping plates 35, and the connecting rod 310 passes through it, further restricting the relative displacement of the clamping plates, ensuring that the two clamping plates move synchronously during the clamping process, and avoiding unilateral displacement.
[0027] The surface of the base 1 is provided with a stabilizing structure 4, which includes a connecting post 41. A groove 42 is formed on the surface of the connecting post 41. A slide plate 44 is slidably connected to the inner wall of the groove 42. A bidirectional screw 43 is rotatably connected to the inner wall of the groove 42. The arc surface of the bidirectional screw 43 is threadedly connected to the surface of the slide plate 44. One end of the bidirectional screw 43 is fixedly connected to an extension plate 48. A fixing rod 49 is rotatably connected to the surface of the extension plate 48. One end of the fixing rod 49 is threadedly connected to the surface of the connecting post 41. A square block 45 is fixedly connected to the surface of the slide plate 44. The extension plate 48 and the fixing rod 49 provide a rotation point for the bidirectional screw 43. The fixing rod 49 is tightened after the slide plate 44 is adjusted into position, locking the bidirectional screw 43 through a threaded connection with the connecting post 41 to prevent its rotation from causing the slide plate to loosen. The connecting post 41 is fixed to the surface of the base 1, providing an installation carrier for the stabilizing structure. Its internal groove 42 is used to accommodate the bidirectional screw 43 and the slide plate 44. The groove 42 defines the sliding path of the slide plate 44; the bidirectional screw 43 drives the two slide plates 44 to slide in opposite directions along the groove 42 by rotation, adjusting the extension length of the square block 45 to adapt to experimental platforms of different sizes; the slide plate 44 drives the square block 45 to move, achieving the "clamping" effect between the base and the edge of the platform.
[0028] A friction pad 46, made of silicone, is fixedly connected to the surface of the square block 45. The silicone friction pad 46 can significantly increase the surface friction, prevent the base from shifting due to vibration or fluid impact during the experiment, and improve the overall stability.
[0029] A protective pad 47, made of rubber, is fixedly connected to the surface of the skateboard 44. The protective pad 47 is designed to adhere to the surface of the skateboard 44, preventing direct collision between the metal skateboard and the connecting post 41 when the skateboard retracts into the groove 42, thus reducing wear and noise.
[0030] The pipe to be tested is placed on pipe 2 on the base surface. Rotating the rotating plate 34 drives the bidirectional screw 33 to rotate, causing the two clamping plates 35 to move towards each other along the sliding groove 32 until the rubber pad 38 is tightly attached to the pipe surface. Then, tighten the bolt 312 to fix the rotating plate 34, completing the pipe clamping. The round rod 311 connects pipe 2 and connecting plate 31, fixing the clamping structure 3 to the pipe surface; the connecting plate 31 provides the mounting base for the sliding groove 32 and the bidirectional screw 33, and is the frame component of the clamping structure. The sliding groove 32 restricts the sliding direction of the clamping plates 35, ensuring that they move in a straight line; the bidirectional screw 33 drives the two clamping plates 35 to move synchronously towards or in opposite directions through rotation, realizing the clamping and releasing of the pipe; the rotating plate 34 provides a rotation operating point for the bidirectional screw 33, which is convenient for manual adjustment of the clamping force. The bolt 312 is designed to secure the rotating plate 34 after the pipe is clamped by the clamping plate 35, preventing the bidirectional screw 33 from rotating due to vibration or external force and ensuring long-term stability of the clamping. The clamping plate 35 directly contacts and clamps the core components of the pipe, enhancing the clamping effect. The protrusion 36 and recess 37 are designed so that when the two clamping plates 35 are closed, the protrusion 36 is embedded in the recess 37 of the other clamping plate, forming a mechanical interlock structure to prevent the pipe from sliding laterally during the experiment and improve clamping accuracy. The pad 38 is designed so that the rubber pad 38 directly contacts the pipe surface, increasing friction to prevent slippage and avoiding surface wear or indentations caused by hard contact between the metal clamping plate and the pipe. The fixing block 39 and connecting rod 310 are designed so that the fixing block 39 is symmetrically distributed on the surface of the two clamping plates 35, and the connecting rod 310 passes through it, further restricting the relative displacement of the clamping plates and ensuring that the two clamping plates move synchronously during the clamping process, avoiding unilateral offset.
[0031] Based on the dimensions of the experimental platform, rotating the bidirectional screw 43 causes the sliding plate 44 to slide along the groove 42, adjusting the contact position between the square block 45 and the edge of the experimental platform. The friction pad 46 increases the friction force, and finally, tightening the fixing rod 49 locks the bidirectional screw 43, ensuring the stable placement of the base 1. The connecting column 41 is fixed to the surface of the base 1, providing an installation carrier for the stable structure. Its internal groove 42 accommodates the bidirectional screw 43 and the sliding plate 44. The groove 42 defines the sliding path of the sliding plate 44; the bidirectional screw 43, through rotation, drives the two sliding plates 44 to slide in opposite directions along the groove 42, adjusting the extension length of the square block 45 to adapt to experimental platforms of different sizes; the sliding plate 44 moves the square block 45, achieving a "locking" effect between the base and the platform edge. The square block 45 and the friction pad 46 ensure contact between the square block 45 and the edge of the experimental platform. The silicone friction pad 46 significantly increases surface friction, preventing displacement of the base due to vibration or fluid impact during the experiment, thus improving overall stability. The extension plate 48 and the fixing rod 49 provide a rotation point for the bidirectional screw 43. The fixing rod 49 is tightened after the slide plate 44 is adjusted into position, locking the bidirectional screw 43 through a threaded connection with the connecting post 41 to prevent its rotation and subsequent loosening of the slide plate. The protective pad 47 adheres to the surface of the slide plate 44, preventing direct collision between the metal slide plate and the connecting post 41 when the slide plate retracts into the groove 42, thus reducing wear and noise.
[0032] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A sand-filled model pipe, comprising a base (1) and a pipe (2), characterized in that: The base (1) is fixedly connected to a pipe (2), and the surface of the pipe (2) is provided with a clamping structure (3). The clamping structure (3) includes a round rod (311), the surface of the round rod (311) is fixedly connected to the surface of the pipe (2), one end of the round rod (311) is fixedly connected to a connecting plate (31), the surface of the connecting plate (31) is provided with a sliding groove (32), the inner wall of the sliding groove (32) is slidably connected to a two-way screw rod (33), the inner wall of the sliding groove (32) is slidably connected to a clamping plate (35), the surface of the clamping plate (35) is threadedly connected to the arc surface of the two-way screw rod (33), one end of the two-way screw rod (33) is fixedly connected to a rotating plate (34), the surface of the rotating plate (34) is rotatably connected to a bolt (312), one end of the bolt (312) is threadedly connected to the surface of the connecting plate (31).
2. The sand-filled model pipe according to claim 1, characterized in that: The surface of the clamp (35) is fixedly connected with a protrusion (36), and the surface of the clamp (35) is provided with a notch (37). The size of the protrusion (36) is matched with the size of the notch (37). The surface of the clamp (35) is fixedly connected with a pad (38), and the pad (38) is made of rubber.
3. The sand-filled model pipe according to claim 1, characterized in that: A fixing block (39) is fixedly connected to the surface of the clamp (35), and a connecting rod (310) is slidably connected to the surface of the fixing block (39).
4. A sand-filled model pipe according to claim 1, characterized in that: The base (1) has a stabilizing structure (4) on its surface. The stabilizing structure (4) includes a connecting column (41). The surface of the connecting column (41) has a groove (42). The inner wall of the groove (42) is slidably connected to a sliding plate (44). The inner wall of the groove (42) is rotatably connected to a bidirectional screw (43). The arc surface of the bidirectional screw (43) is threadedly connected to the surface of the sliding plate (44). One end of the bidirectional screw (43) is fixedly connected to an extension plate (48). The surface of the extension plate (48) is rotatably connected to a fixing rod (49). One end of the fixing rod (49) is threadedly connected to the surface of the connecting column (41). The surface of the sliding plate (44) is fixedly connected to a square block (45).
5. A sand-filled model pipe according to claim 4, characterized in that: A friction pad (46) is fixedly connected to the surface of the square block (45), and the friction pad (46) is made of silicone.
6. A sand-filled model pipe according to claim 4, characterized in that: The surface of the skateboard (44) is fixedly connected to a protective pad (47), which is made of rubber.