A glass linear thermal expansion coefficient tester

Abstract

This utility model relates to the field of glass wire testing technology, specifically a glass wire thermal expansion coefficient tester, including a base plate, a laser rangefinder sensor, and a heating assembly. A support frame is fixedly installed on the top side of the base plate, and a laser rangefinder sensor is fixedly installed on the bottom surface of the top center of the support frame. A chassis is fixedly installed at the center of the top surface of the base plate, and a connecting groove is formed around the side of the chassis. A heat insulation sleeve is installed on the chassis, and a heat-conducting layer is fixedly installed on the inner wall of the heat insulation sleeve. A heating assembly is installed inside the heat-conducting layer, and the heating assembly extends and is fixedly installed on the top surface of the heat insulation sleeve. In this utility model, the quartz push rod, quartz bottom ball, and limiting ball achieve stable vertical lifting and lowering through an alloy guide sleeve, facilitating subsequent contact between the quartz bottom ball and the top surface of the glass wire. Furthermore, the limiting ball prevents detachment during subsequent disassembly, thus facilitating assembly and disassembly.

Description

Technical Field

[0001] This utility model relates to the field of glass wire testing technology, and in particular to a glass wire thermal expansion coefficient tester. Background Technology

[0002] Glass wires are commonly used in fields such as optical fibers and composite material reinforcement. The coefficient of thermal expansion is important for the stability of these applications. Glass wire testing is used to inspect glass wires, including testing the coefficient of thermal expansion. The coefficient of thermal expansion test includes the displacement method using a quartz pusher, which measures the change in the height of the quartz rod to infer the coefficient of thermal expansion of the glass wire.

[0003] Existing glass wire thermal expansion coefficient testers determine the glass wire expansion coefficient by locking the bottom of the glass wire in place and using a quartz rod to hold the top of the glass wire in place, and by measuring the change in the height of the quartz rod. However, during operation, the adjustment is not convenient or quick due to the different diameters and heights of the glass wires. In addition, the assembly structure is cumbersome and subsequent maintenance is inconvenient.

[0004] Therefore, to address the above issues, an innovative design was developed based on the existing glass linear thermal expansion coefficient tester. Utility Model Content

[0005] To overcome the problem that common glass wire thermal expansion coefficient testers have inconsistent glass wire diameters and heights, making adjustment operations inconvenient and slow.

[0006] The technical solution of this utility model is as follows: a glass linear thermal expansion coefficient tester, comprising a base plate, a laser rangefinder sensor, and a heating assembly. A support frame is fixedly installed on the top side of the base plate, and a laser rangefinder sensor is fixedly installed on the bottom side of the top center of the support frame. A chassis is fixedly installed at the center of the top surface of the base plate, and a connecting ring groove is formed around the side of the chassis. A heat insulation sleeve is installed on the chassis, and a heat-conducting layer is fixedly installed on the inner wall of the heat insulation sleeve. A heating assembly is installed inside the heat-conducting layer, and the heating assembly extends and is fixedly installed on the top surface of the heat insulation sleeve. An alloy guide sleeve is installed through the center of the top of the heat insulation sleeve, and a quartz push rod is installed through the center of the alloy guide sleeve. A quartz bottom ball is provided at the bottom end of the quartz push rod, and a limit ball is fixedly installed at the top end of the quartz push rod.

[0007] Preferably, the heat insulation sleeve is connected to the chassis via a snap-fit ​​connection through a connecting ring groove, and the centerline of the heat insulation sleeve is aligned with the centerline of the chassis and the longitudinal centerline of the laser rangefinder.

[0008] Preferably, the alloy guide sleeve and the heat insulation sleeve are connected by an embedded fixing method, and the alloy guide sleeve and the quartz push rod are connected by a rotary sliding connection, and the outer surface of the quartz push rod is provided with scale lines.

[0009] Preferably, the quartz push rod and the quartz base ball are integrated into one structure, and the diameter of the quartz base ball and the limiting ball is larger than the diameter of the quartz push rod.

[0010] Preferably, the top surface of the chassis has a limiting groove and a positioning hole, and the positioning hole is located at the center of the top surface of the chassis. A load-bearing block is installed on the chassis, and the bottom end of the load-bearing block is located inside the limiting groove. An alloy straight rod is fixedly installed at the center of the top surface of the load-bearing block, and a quartz connecting rod is fixedly installed on the alloy straight rod. A quartz limiting sleeve is fixedly installed at the end of the quartz connecting rod.

[0011] Preferably, the load-bearing base block and the alloy straight rod are integrated into one structure, and the load-bearing base block is connected to the limiting groove by a snap-fit ​​connection. Furthermore, the load-bearing base block, the alloy straight rod, and the quartz connecting rod are symmetrically distributed on the quartz limiting sleeve.

[0012] Preferably, the centerline of the quartz limiting sleeve is aligned with the centerlines of the alloy guide sleeve, the quartz push rod, the quartz bottom ball, the limiting ball, and the positioning hole groove, and the diameter of the positioning hole groove decreases in a stepped manner from top to bottom.

[0013] The beneficial effects of this utility model are:

[0014] 1. The quartz push rod, quartz bottom ball, and limit ball are raised and lowered vertically smoothly through the alloy guide sleeve, which facilitates the bottom ball of the quartz bottom ball to rest against the top surface of the glass line, and the limit ball prevents it from falling off during subsequent disassembly, thus facilitating disassembly and assembly.

[0015] 2. The glass wire can be fixed to the chassis by high-temperature adhesive and positioning slots to maintain verticality. The structure of the positioning slots facilitates the insertion and positioning of glass wires of different diameters.

[0016] 3. By engaging the load-bearing base block with the limiting groove, the position of the quartz limiting sleeve can be precisely positioned, facilitating the alignment of the axis and enabling the glass wire to pass through the quartz limiting sleeve for support and restriction, preventing lateral displacement. Different types of alloy straight rods and quartz limiting sleeves can be installed according to the diameter and height of the glass wire. As the glass wire is longer, more quartz limiting sleeves can be installed. Attached Figure Description

[0017] Figure 1 The diagram shown is a three-dimensional structural illustration of the present invention.

[0018] Figure 2 The diagram shown is a three-dimensional structural illustration of the heat insulation sleeve of this utility model.

[0019] Figure 3 The diagram shown is a three-dimensional structural illustration of the load-bearing base block and chassis of this utility model.

[0020] Figure 4 The diagram shown is a three-dimensional cross-sectional view of the chassis of this utility model.

[0021] Figure 5 The diagram shown is a three-dimensional structural schematic of the heat insulation sleeve of this utility model from an upward perspective.

[0022] Figure 6 The diagram shown is a three-dimensional cross-sectional view of the heat insulation sleeve of this utility model.

[0023] Explanation of reference numerals in the attached drawings: 1. Base plate; 2. Support frame; 3. Laser rangefinder sensor; 4. Chassis; 5. Connecting ring groove; 6. Heat insulation sleeve; 7. Heat-conducting layer; 8. Heating component; 9. Alloy guide sleeve; 10. Quartz push rod; 11. Quartz bottom ball; 12. Limiting ball; 13. Limiting groove; 14. Positioning hole groove; 15. Load-bearing base block; 16. Alloy straight rod; 17. Quartz connecting rod; 18. Quartz limiting sleeve. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-6 This utility model provides a technical solution: a glass linear thermal expansion coefficient tester, including a base plate 1, a laser rangefinder 3, and a heating component 8. A support frame 2 is fixedly installed on the top side of the base plate 1, and a laser rangefinder 3 is fixedly installed on the bottom side of the top center of the support frame 2. A chassis 4 is fixedly installed at the center of the top surface of the base plate 1, and a connecting ring groove 5 is formed around the side of the chassis 4. A heat insulation sleeve 6 is installed on the chassis 4, and a heat-conducting layer 7 is fixedly installed on the inner wall of the heat insulation sleeve 6. A heating component 8 is installed inside the heat-conducting layer 7, and the heating component 8 extends and is fixedly installed on the top surface of the heat insulation sleeve 6. An alloy guide sleeve 9 is installed through the center of the top of the heat insulation sleeve 6, and a quartz push rod 10 is installed through the center of the alloy guide sleeve 9. A quartz bottom ball 11 is provided at the bottom end of the quartz push rod 10, and a limit ball 12 is fixedly installed at the top end of the quartz push rod 10.

[0026] The heat insulation sleeve 6 is connected to the chassis 4 by a snap-fit ​​connection through the connecting ring groove 5. The axis of the heat insulation sleeve 6 is aligned with the axis of the chassis 4 and the longitudinal center line of the laser rangefinder 3, which facilitates the assembly of the heat insulation sleeve 6 and the chassis 4 and also makes it easy to disassemble. When internal components are damaged, they can be quickly replaced and maintained.

[0027] The alloy guide sleeve 9 is connected to the heat insulation sleeve 6 by embedding and fixing, and the alloy guide sleeve 9 is connected to the quartz push rod 10 by rotating and sliding connection. The outer surface of the quartz push rod 10 is provided with scale lines. The quartz push rod 10 can maintain precise vertical sliding operation through the alloy guide sleeve 9. The scale lines on the quartz push rod 10 can be easily judged by visual inspection.

[0028] The quartz push rod 10 and the quartz bottom ball 11 are integrated into one structure. The diameter of the quartz bottom ball 11 and the limiting ball 12 is larger than the diameter of the quartz push rod 10. The quartz bottom ball 11 can abut against the top of the glass wire. When the glass wire extends due to thermal expansion, it can push the quartz bottom ball 11 and the quartz push rod 10 to rise.

[0029] The top surface of the chassis 4 has a limiting groove 13 and a positioning hole 14, with the positioning hole 14 located at the center of the top surface of the chassis 4. A load-bearing base block 15 is installed on the chassis 4, with the bottom end of the load-bearing base block 15 located inside the limiting groove 13. An alloy straight rod 16 is fixedly installed at the center of the top surface of the load-bearing base block 15, and a quartz connecting rod 17 is fixedly installed on the alloy straight rod 16. A quartz limiting sleeve 18 is fixedly installed at the end of the quartz connecting rod 17. 5 and alloy straight rod 16 are integrated into a single structure, and the load-bearing base block 15 and the limiting groove 13 are connected by a snap-fit ​​connection. The load-bearing base block 15, alloy straight rod 16 and quartz connecting rod 17 are symmetrically distributed on the quartz limiting sleeve 18. Due to the snap-fit ​​between the load-bearing base block 15 and the limiting groove 13, the overall installation is convenient, and the load-bearing base block 15 maintains the stability and accuracy of the alloy straight rod 16, quartz connecting rod 17 and quartz limiting sleeve 18 after installation.

[0030] The axis of the quartz limiting sleeve 18 is aligned with the axis of the alloy guide sleeve 9, the quartz push rod 10, the quartz bottom ball 11, the limiting ball 12 and the positioning hole groove 14. The diameter of the positioning hole groove 14 decreases in a stepped manner from top to bottom. The glass wire can be fixed at the bottom by inserting it into the positioning hole groove 14 with high temperature glue, which facilitates subsequent testing. The glass wire can also pass through the quartz limiting sleeve 18 to keep it vertical.

[0031] Working principle: According to Figures 2-4First, the bottom end of the glass wire can be inserted into the positioning hole groove 14 for initial assembly and positioning. Then, the bottom end of the glass wire is fixed with high temperature glue to fix it in the center position of the positioning hole groove 14. Then, according to the diameter and height of the glass wire, a quartz limiting sleeve 18 of appropriate height is matched. At the same time, the inner diameter of the quartz limiting sleeve 18 matches the diameter of the glass wire, so that the quartz limiting sleeve 18 can be sleeved through the outside of the glass wire. At the same time, the uppermost quartz limiting sleeve 18 is sleeved on the top outside of the glass wire. Meanwhile, the quartz limiting sleeve 18 drives the load-bearing bottom block 15 to engage with the limiting groove 13 through the quartz connecting rod 17 and the alloy straight rod 16 to maintain the stability and accuracy of the installation.

[0032] according to Figures 1-2 and Figures 5-6 The heat insulation sleeve 6 is fitted onto the outside of the fixedly installed glass wire for covering. At the same time, the heat insulation sleeve 6 is engaged with the chassis 4 through the connecting ring groove 5. Then, the heating component 8, the thermocouple installed in the center of the chassis 4, and the laser range sensor 3 can be connected to an external power source through the power cord and started. This allows the heating component 8 to heat the glass wire inside the heat insulation sleeve 6. At the same time, the bottom of the heat insulation sleeve 6 is heated by the thermocouple. When the heat insulation sleeve 6 thermally expands and extends radially, the top of the heat insulation sleeve 6 will extend and push the quartz push rod 10 and the limiting ball 12 through the quartz bottom ball 11 to rise smoothly through the alloy guide sleeve 9. Thus, the size change is recorded according to the scale line on the quartz push rod 10, and the laser range sensor 3 can accurately record the laser range of the limiting ball 12.

[0033] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A glass linear thermal expansion coefficient tester comprising a base plate (1), a laser distance measuring sensor (3) and a heating assembly (8), characterized in that: A support frame (2) is fixedly installed on the top side of the base plate (1), and a laser rangefinder (3) is fixedly installed on the bottom side of the top center of the support frame (2). A chassis (4) is fixedly installed at the center of the top surface of the base plate (1), and a connecting ring groove (5) is opened around the side of the chassis (4). A heat insulation sleeve (6) is installed on the chassis (4), and a heat-conducting layer (7) is fixedly installed on the inner wall of the heat insulation sleeve (6). A heating component (8) is installed inside the heat-conducting layer (7), and the heating component (8) extends and is fixedly installed on the top surface of the heat insulation sleeve (6). An alloy guide sleeve (9) is installed through the center of the top of the heat insulation sleeve (6), and a quartz push rod (10) is installed through the center of the alloy guide sleeve (9). A quartz bottom ball (11) is provided at the bottom end of the quartz push rod (10), and a limit ball (12) is fixedly installed at the top end of the quartz push rod (10).

2. The glass linear thermal expansion coefficient tester of claim 1, wherein: The heat insulation sleeve (6) is connected to the chassis (4) by a snap-fit ​​connection through the connecting ring groove (5), and the axis of the heat insulation sleeve (6) is aligned with the axis of the chassis (4) and the longitudinal center line of the laser rangefinder (3).

3. The glass linear thermal expansion coefficient tester of claim 1, wherein: The alloy guide sleeve (9) is connected to the heat insulation sleeve (6) by embedding and fixing, and the alloy guide sleeve (9) is connected to the quartz push rod (10) by rotating and sliding connection, and the outer surface of the quartz push rod (10) is provided with scale lines.

4. The glass linear thermal expansion coefficient tester of claim 1, wherein: The quartz push rod (10) and the quartz bottom ball (11) are integrated into one structure, and the diameters of the quartz bottom ball (11) and the limiting ball (12) are larger than the diameter of the quartz push rod (10).

5. The glass linear thermal expansion coefficient tester of claim 1, wherein: The top surface of the chassis (4) is provided with a limiting groove (13) and a positioning hole groove (14), and the positioning hole groove (14) is located at the center of the top surface of the chassis (4). A load-bearing base block (15) is installed on the chassis (4), and the bottom end of the load-bearing base block (15) is located inside the limiting groove (13). An alloy straight rod (16) is fixedly installed at the center of the top surface of the load-bearing base block (15), and a quartz connecting rod (17) is fixedly installed on the alloy straight rod (16), and a quartz limiting sleeve (18) is fixedly installed at the end of the quartz connecting rod (17).

6. The glass linear thermal expansion coefficient tester of claim 5, wherein: The load-bearing base block (15) and the alloy straight rod (16) are integrated structures, and the load-bearing base block (15) and the limiting groove (13) are connected by a snap-fit ​​connection. The load-bearing base block (15), the alloy straight rod (16) and the quartz connecting rod (17) are symmetrically distributed on the quartz limiting sleeve (18).

7. The glass linear thermal expansion coefficient tester of claim 5, wherein: The axis of the quartz limiting sleeve (18) is aligned with the axis of the alloy guide sleeve (9), quartz push rod (10), quartz bottom ball (11), limiting ball (12) and positioning hole groove (14), and the diameter of the positioning hole groove (14) decreases in a step-like manner from top to bottom.

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