Test clamp for dynamic friction coefficient of silicon core pipe
By introducing abutting bolts and extension plates into the silicon core tube dynamic friction coefficient test fixture, combined with the detachable connecting plate and anti-slip layer, the problem of short service life of the fixture is solved and higher clamping stability and service life are achieved.
Patent Information
- Application Number
- CN202422508209.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-16
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-10-16
AI Technical Summary
After long-term use of existing silicon core tube dynamic friction coefficient test fixtures, stress concentration is prone to occur at the connection between the horizontal part and the vertical part, resulting in a decrease in the clamping capacity and a lower service life.
By providing abutting bolts and extension plates on the clamp body, the pressing block is allowed to slide on the horizontal part and stuck on the side of the silicon core tube. Combined with the removable connecting plate and anti-slip layer, the stability and strength of the clamp are enhanced and deformation is reduced.
It improves the service life and clamping stability of the fixture, extends the service life of the fixture, reduces the bending degree of the horizontal part relative to the vertical part, and improves the strength and friction of the fixture.
Smart Images
Figure CN223172819U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of optical cable engineering test equipment, and particularly to a dynamic friction coefficient test fixture for silicon core pipes. Background Art
[0002] In the process of modern highway traffic construction and operation, the transmission of information such as data, messages, and images has become increasingly important. Optical cable engineering plays an important role in the transmission channel of mechanical and electrical engineering. The laying distance of highway optical cables is long and the maintenance cost is high after accidental fracture. In order to improve the stability of its transmission performance and the economy of maintenance and use, the protection of optical cable sleeves has become an important means, that is, pre-burying silicon core pipes as sleeves and then threading optical cables inside the sleeves. During the construction process, when blowing and threading the optical cable through the pipe, the magnitude of the frictional resistance on the inner wall of the silicon core pipe directly affects the efficiency of the blowing and threading construction. Therefore, it is necessary to conduct a dynamic friction coefficient test on the silicon core pipe before construction use.
[0003] For the relevant dynamic friction coefficient test, the silicon core pipe needs to be fixed, and then the frictional force on the inner wall of the silicon core pipe is detected. The fixation of the silicon core pipe is completed by a fixture. The fixture includes two horizontal parts and a vertical part. The two horizontal parts are arranged parallel to each other. One end of the vertical part is connected to one horizontal part. An abutting bolt is arranged on one horizontal part. The abutting bolt penetrates through the horizontal part and is threadedly connected to the horizontal part. A pressing block is arranged between the two horizontal parts. The end of the abutting bolt is connected to the pressing block. The pressing block can move through the abutting bolt. By clamping the silicon core pipe jointly with the pressing block and the horizontal part, the purpose of detecting the dynamic friction coefficient of the inner wall of the silicon core pipe is achieved.
[0004] The above-mentioned related technical solutions have the following defects: When the pressing block abuts against the silicon core pipe for a long time or multiple times, there is a large stress concentration at the connection between the two horizontal parts and the vertical part, which is likely to cause the horizontal part to skew relative to the vertical part, thereby reducing the clamping ability of the fixture and having a low service life. Utility Model Content
[0005] In order to improve the service life of the fixture, this application provides a dynamic friction coefficient test fixture for silicon core pipes.
[0006] The dynamic friction coefficient test fixture for silicon core pipes provided by this application adopts the following technical solutions:
[0007] A dynamic friction coefficient test fixture for silicon core pipes includes a fixture main body, a pressing block, and an abutting bolt. The fixture main body includes two horizontal parts and a vertical part. The horizontal parts are parallel to each other. Both ends of the vertical part are respectively fixed on the two horizontal parts. The abutting bolt is arranged on one horizontal part. The abutting bolt penetrates through the horizontal part and is threadedly connected to the horizontal part. The pressing block is arranged between the two horizontal parts. The end of the abutting bolt is connected to the pressing block. Extension plates are connected to both horizontal parts. The extension plates are parallel to the vertical part. One end of the extension plate is connected to the horizontal part, and the other end extends towards the other horizontal part.
[0008] By adopting the above technical solution, a butting bolt is arranged on the fixture body, and a pressing block is arranged at the end of the butting bolt. The user rotates the butting bolt, so that the butting bolt can slide on the horizontal part, and then the pressing block can move to any position between the two horizontal parts. By arranging an extension plate on the horizontal part, the extension plate can be stuck on the side of the silicon core pipe. When the two horizontal parts are bent relative to the vertical part, the horizontal part can continue to be connected with the silicon core pipe through the extension plate, so that the fixture body can continue to fix the silicon core pipe after deformation, and the service life of the fixture is improved.
[0009] Optionally, a connecting column is fixed at one end of the butting bolt away from the pressing block, and an installation hole is opened on the connecting column. The length direction of the installation hole is perpendicular to the length direction of the butting bolt.
[0010] By adopting the above technical solution, by arranging a connecting column on the butting bolt and opening an installation hole on the connecting column, the user can pry the butting bolt to rotate by inserting a hard rod into the installation hole, and then it is convenient for the user to control the movement of the pressing block.
[0011] Optionally, a stud is fixedly connected to the fixture body, and one end of the stud is fixed on the fixture body.
[0012] By adopting the above technical solution, by arranging a stud on the fixture body, the user can fix the fixture body on different devices through the stud, which is convenient for the user to install the fixture body.
[0013] Optionally, a plurality of through holes are opened on the fixture body.
[0014] By adopting the above technical solution, by opening through holes on the fixture body, the user can insert connecting pieces such as bolts into the through holes, so that the fixture body is fixedly connected to different devices.
[0015] Optionally, a connecting plate is detachably connected to the fixture body. The connecting plate is a flat plate, and one end of the connecting plate is detachably connected to an extension plate.
[0016] By adopting the above technical solution, by detachably connecting the connecting plate to the fixture body, the connecting plate connects the two horizontal parts, and then the connecting plate and the fixture body jointly form a square structure. When the pressing block presses on the silicon core pipe, the force on the fixture body is more uniform, thereby reducing the degree of bending of the horizontal part relative to the vertical part and improving the strength of the fixture body.
[0017] Optionally, a connecting bolt is arranged on the extension plate. The connecting bolt penetrates through the extension plate and the connecting plate, and a fixing nut is threadedly connected to the connecting bolt.
[0018] By adopting the above technical solution, by arranging connecting bolts on the extension plate, the connecting bolts can penetrate through the extension plate and the connecting plate, so that the extension plate can be detachably connected to the connecting plate.
[0019] Optionally, a counterbore is formed on the extension plate, and the counterbore is formed on one side surface of the extension plate close to the vertical portion. The head of the connecting bolt is arranged in the counterbore. The cross-section of the counterbore is in the shape of a regular hexagon, and the inner wall of the counterbore is stuck on the head of the connecting bolt.
[0020] By adopting the above technical solution, by forming a counterbore on the extension plate, when the connecting bolt is inserted into the extension plate and connected to the connecting plate, the head of the connecting bolt can be inserted into the counterbore, so that the inner wall of the extension plate remains flat, and the pressing block can slide inside the extension plate. By setting the counterbore as a regular hexagon hole, when the connecting bolt is inserted into the counterbore, the head of the connecting bolt can be stuck in the counterbore, so that the connecting bolt is fixed on the extension plate. At this time, the user can rotate the fixing nut to thread the fixing nut and the connecting bolt.
[0021] Optionally, an anti-slip layer is bonded on the horizontal portion. The anti-slip layer is made of a rubber material with a rough surface, and the anti-slip layer is used to increase the friction between the fixture body and the silicon core pipe.
[0022] By adopting the above technical solution, by arranging an anti-slip layer on the horizontal portion, the anti-slip layer increases the friction between the fixture body and the silicon core pipe, thereby reducing the probability of the silicon core pipe slipping on the horizontal portion and improving the stability of the fixture body for clamping the silicon core pipe.
[0023] In summary, the beneficial technical effects of the present application are as follows:
[0024] 1. By arranging a butt bolt on the fixture body and a pressing block at the end of the butt bolt, the user can rotate the butt bolt to make the butt bolt slide on the horizontal portion, so that the pressing block can move to any position between the two horizontal portions. By arranging an extension plate on the horizontal portion, the extension plate can be stuck on the side of the silicon core pipe. When the two horizontal portions are bent relative to the vertical portion, the horizontal portion can continue to be connected to the silicon core pipe through the extension plate, so that the fixture body can continue to fix the silicon core pipe after deformation, improving the service life of the fixture;
[0025] 2. By detachably connecting the connecting plate to the fixture body, the connecting plate connects the two horizontal portions, so that the connecting plate and the fixture body together form a square structure. When the pressing block presses on the silicon core pipe, the force on the fixture body is more uniform, thereby reducing the degree of bending of the horizontal portion relative to the vertical portion and improving the strength of the fixture body;
[0026] 3. By providing counterbores on the extension plate, when the connecting bolts are inserted into the extension plate and connected to the connecting plate, the heads of the connecting bolts can be inserted into the counterbores, thereby keeping the inner wall of the extension plate flat and enabling the pressing block to slide inside the extension plate. By setting the counterbores as regular hexagonal holes, when the connecting bolts are inserted into the counterbores, the heads of the connecting bolts can be stuck in the counterbores, further fixing the connecting bolts on the extension plate. At this time, the user can rotate the fixing nut to thread the fixing nut onto the connecting bolt. Description of the Drawings
[0027] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present application Figure 1 。
[0028] Figure 2 is a schematic diagram of the overall structure of an embodiment of the present application Figure 2 。
[0029] Figure 3 is a schematic diagram of the position of the connecting plate in an embodiment of the present application Figure 1 。
[0030] Figure 4 is a schematic diagram of the position of the connecting plate in an embodiment of the present application Figure 2 。
[0031] Reference numerals: 1, fixture body; 11, horizontal part; 111, extension plate; 112, counterbore; 113, anti-slip layer; 12, vertical part; 2, pressing block; 3, abutting bolt; 31, connecting column; 311, mounting hole; 41, stud; 42, through hole; 5, connecting plate; 51, connecting bolt; 52, fixing nut. Detailed Description of the Embodiment
[0032] The following further describes the present application in detail with reference to the drawings.
[0033] An embodiment of the present application discloses a test fixture for the dynamic friction coefficient of silicon core pipes. Refer to Figure 1 and Figure 2, including a fixture body 1, a pressing block 2 and an abutting bolt 3. The fixture body 1 includes two horizontal parts 11 and a vertical part 12. Both the horizontal parts 11 and the vertical part 12 are flat plate structures. The two horizontal parts 11 are parallel to each other, and the vertical part 12 is perpendicularly arranged with respect to the horizontal parts 11. One end of the vertical part 12 is connected to one horizontal part 11, and the horizontal parts 11 and the vertical part 12 form a semi-enclosed frame structure. The silicon core pipe is arranged in the space between the two horizontal parts 11. The pressing block 2 is a flat plate structure, and the pressing block 2 is arranged between the two horizontal parts 11 and is parallel to the horizontal parts 11. The abutting bolt 3 penetrates through one horizontal part 11 and is threadedly connected to the horizontal part 11. The length direction of the abutting bolt 3 is perpendicular to the horizontal part 11, and one end of the abutting bolt 3 is rotatably connected to the pressing block 2. By screwing the abutting bolt 3, the user can make the abutting bolt 3 reciprocate along the length direction on the horizontal part 11, so that the abutting bolt 3 can control the position of the pressing block 2. By arranging the silicon core pipe in the fixture body 1, the pressing block 2 and the horizontal part 11 can jointly squeeze the silicon core pipe, so that the silicon core pipe is fixed in the fixture body 1. At this time, the user can conduct a dynamic friction coefficient test on the silicon core pipe.
[0034] Refer to Figure 1 and Figure 2 , an extension plate 111 is connected to the end of the horizontal part 11 away from the vertical part 12. The extension plate 111 is parallel to the vertical part 12. One end of the extension plate 111 is fixed to the horizontal part 11, and the other end extends towards the other horizontal part 11. The extension plate 111 is used to hold the silicon core pipe. After the silicon core pipe is placed into the fixture body 1 through the space between the two extension plates 111, when the user makes the pressing block 2 press on the silicon core pipe through the abutting bolt 3, the extension plate 111 is located on one side of the silicon core pipe, thereby reducing the probability of the silicon core pipe slipping horizontally and coming out of the fixture body 1.
[0035] Refer to Figure 1 , a connecting part is arranged on the fixture body 1, and the connecting part is used to mount the fixture body 1 on the test equipment. The connecting part is set as a stud 41, and one end of the stud 41 is fixed to the side of the vertical part 12 away from the pressing block 2.
[0036] In other embodiments, refer to Figure 2 , a plurality of through holes 42 are formed in the vertical part 12, and the user can insert connecting parts such as bolts into the through holes 42, so that the fixture body 1 can be fixed on the test equipment.
[0037] Refer to Figure 1, a connecting column 31 is fixed at one end of the abutting bolt 3 away from the pressing block 2. The connecting column 31 is of a cylindrical structure and is coaxially connected to the abutting bolt 3. An installation hole 311 is provided in the middle of the connecting column 31. The length direction of the installation hole 311 is perpendicular to the axis of the connecting column 31, and the installation hole 311 penetrates through the connecting column 31. The user can insert a rigid rod into the installation hole 311, thereby facilitating the user to screw the abutting bolt 3.
[0038] Referring to Figure 3 and Figure 4 , a connecting plate 5 is provided on the fixture main body 1. The connecting plate 5 is of a flat plate structure. One end of the connecting plate 5 is connected to an extension plate 111, and the connecting plate 5 is arranged parallel to the vertical portion 12. The connecting plate 5 is used to connect the two horizontal portions 11. When the pressing block 2 presses on the silicon core pipe through the abutting bolt 3, the horizontal portion 11 where the abutting bolt 3 is located bears stress, causing a large stress at the connection between the horizontal portion 11 and the vertical portion 12 of the fixture main body 1 and resulting in deformation. By providing the connecting plate 5 on the fixture main body 1, the connecting plate 5 and the fixture main body 1 form a frame structure, so that the horizontal portion 11 where the abutting bolt 3 is located can maintain a straight state, reducing the probability of deformation or fracture of the fixture main body 1 and improving the service life of the fixture main body 1.
[0039] Referring to Figure 3 and Figure 4 , connecting bolts 51 are respectively provided at both ends of the connecting plate 5. The connecting bolts 51 penetrate through the extension plate 111 and the connecting plate 5, and fixing nuts 52 are threadedly connected to the connecting bolts 51. The connecting bolts 51 and the fixing nuts 52 are used to detachably connect the connecting plate 5 to the extension plate 111.
[0040] Referring to Figure 3 and Figure 4 , a counterbore 112 is provided on the extension plate 111. The counterbore 112 is used to insert the head of the connecting bolt 51, so that the surface of the extension plate 111 near the vertical portion 12 is flat, enabling the pressing block 2 to slide freely between the two horizontal portions 11. The counterbore 112 is opened as a regular hexagonal hole, and the inner wall of the counterbore 112 can hold the head of the connecting bolt 51, so that the connecting bolt 51 remains fixed after being inserted into the extension plate 111. At this time, the user can install the fixing nut 52 on the connecting bolt 51, facilitating the user to load and unload the connecting plate 5 on the fixture main body 1.
[0041] Referring to Figure 3 , an anti-slip layer 113 is bonded on the horizontal portion 11. The anti-slip layer 113 is made of a rubber material with a rough surface and is bonded on the surface of the horizontal portion 11 that abuts against the silicon core pipe. The anti-slip layer 113 can increase the surface friction of the horizontal portion 11, thereby reducing the probability of the silicon core pipe rolling on the horizontal portion 11.
[0042] The implementation principle of the embodiment of this application is as follows: By threadedly connecting the abutting bolt 3 to the fixture main body 1, the user can move the pressing block 2 by screwing the abutting bolt 3, so that the pressing block 2 and a horizontal portion 11 jointly clamp the silicon core pipe. By providing an extension plate 111 on the horizontal portion 11, the extension plate 111 can hold the silicon core pipe, thereby reducing the probability of the silicon core pipe sliding on the horizontal portion 11 and improving the connection stability between the fixture main body 1 and the silicon core pipe.
[0043] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.
Claims
1. A test fixture for the dynamic friction coefficient of silicon core pipes, characterized in that: It includes a fixture body (1), a pressing block (2) and a contact bolt (3). The fixture body (1) includes two horizontal parts (11) and a vertical part (12). The horizontal parts (11) are parallel to each other. The two ends of the vertical part (12) are respectively fixed on the two horizontal parts (11). The contact bolt (3) is arranged on one horizontal part (11). The contact bolt (3) penetrates through the horizontal part (11) and is threadedly connected to the horizontal part (11). The pressing block (2) is arranged between the two horizontal parts (11). The end of the contact bolt (3) is connected to the pressing block (2). Extension plates (111) are connected to both horizontal parts (11). The extension plates (111) are parallel to the vertical part (12). One end of the extension plate (111) is connected to the horizontal part (11), and the other end extends towards the other horizontal part (11).
2. The dynamic friction coefficient test fixture for silicon core pipes according to claim 1, wherein: A connecting column (31) is fixed to the end of the contact bolt (3) away from the pressing block (2). An installation hole (311) is formed in the connecting column (31). The length direction of the installation hole (311) is perpendicular to the length direction of the contact bolt (3).
3. The dynamic friction coefficient test fixture for silicon core pipes according to claim 1, characterized in that: A stud (41) is fixedly connected to the fixture body (1). One end of the stud (41) is fixed to the fixture body (1).
4. A dynamic friction coefficient test fixture for silicon core pipes according to claim 1, characterized in that: A number of through holes (42) are formed in the fixture body (1).
5. A test fixture for the dynamic friction coefficient of a silicon core pipe according to claim 1, characterized in that: A connecting plate (5) is detachably connected to the fixture body (1). The connecting plate (5) is a flat plate. One end of the connecting plate (5) is detachably connected to one extension plate (111).
6. The dynamic friction coefficient test fixture for silicon core pipe according to claim 5, characterized in that: A connecting bolt (51) is arranged on the extension plate (111). The connecting bolt (51) penetrates through the extension plate (111) and the connecting plate (5). A fixing nut (52) is threadedly connected to the connecting bolt (51).
7. The dynamic friction coefficient test fixture for silicon core pipes according to claim 6, characterized in that: A counterbore (112) is formed in the extension plate (111). The counterbore (112) is formed on the surface of the extension plate (111) close to the vertical part (12). The head of the connecting bolt (51) is arranged in the counterbore (112). The cross-section of the counterbore (112) is in the shape of a regular hexagon. The inner wall of the counterbore (112) is stuck on the head of the connecting bolt (51).
8. A test fixture for the dynamic friction coefficient of a silicon core pipe according to claim 1, characterized in that: An anti-slip layer (113) is adhered to the horizontal part (11). The anti-slip layer (113) is made of a rubber material with a rough surface. The anti-slip layer (113) is used to increase the friction between the fixture body (1) and the silicon core pipe.