CN215768347U - Thermal extension test device - Google Patents
Thermal extension test device Download PDFInfo
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- CN215768347U CN215768347U CN202122088442.4U CN202122088442U CN215768347U CN 215768347 U CN215768347 U CN 215768347U CN 202122088442 U CN202122088442 U CN 202122088442U CN 215768347 U CN215768347 U CN 215768347U
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- clamping assembly
- extension test
- scale
- thermal extension
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Abstract
The utility model provides a thermal extension test device which comprises a square test box with an opening at the front side, wherein a bottom plate is arranged at the bottom of the test box, a heater is arranged inside the bottom plate, a support frame is arranged on the bottom plate, a plurality of vertical scales which are arranged at equal intervals are fixedly arranged at the top of the support frame, a clamping assembly is arranged on one side of each scale through a fixing piece, an experimental body is fixedly clamped on the clamping assembly, an indicating assembly corresponding to each scale is arranged on the experimental body, and a weight sleeve is arranged at the bottom of the clamping assembly. The utility model can assist the experimenter to clearly see the extension amount of the experimental body by arranging the indicating component, and replaces the traditional weight tray with the weight sleeve, thereby not only being convenient to use and not easy to fall off, but also greatly reducing the space occupied area of the clamping component and the weight sleeve, improving the space utilization rate in the test box, increasing the test amount of the experimental body and improving the experimental efficiency.
Description
Technical Field
The utility model relates to the technical field of extension detection experimental appliances, in particular to a thermal extension test device.
Background
The elastomer mixture of wires, cables and optical cables needs to be subjected to a thermal extension test, a correct method and a proper device are needed for reading data on a scale in the test process, and the reasonability of the thermal extension test device directly influences the accuracy and the working efficiency of the test result. In the existing thermal extension test device, in a thermal aging test box with specified temperature, a plurality of test samples are clamped by an upper chuck and hung on a bracket in parallel, the lower parts of the test samples are clamped by a lower chuck, a tray is hung on the lower chuck, and weights are placed in the tray.
The device with the structure in the prior art has the defects that the distance between a test sample and a scale is large, a needle-shaped reading indicating piece is not arranged, and the deviation is easy to occur due to different visual angles when an operator reads, so that the test accuracy is influenced; the tray is hung on the lower chuck, and when the tray is placed into the thermal ageing test box at a specified test temperature, weights in the tray easily fall off due to shaking, so that the test fails; meanwhile, the method has the defects of few suspended samples and low test efficiency, and has space and necessity for improvement.
SUMMERY OF THE UTILITY MODEL
The utility model provides a thermal extension test device, which aims to solve the problems that the existing test device in the background art is easy to deviate in reading, inaccurate in test result and easy to drop weights to influence the test efficiency during testing.
The technical scheme of the utility model is realized as follows:
the utility model provides a thermal extension test device, includes front side open-ended square proof box, the bottom of proof box is provided with the bottom plate, the inside of bottom plate is provided with the heater, be provided with the support frame on the bottom plate, the top fixed mounting of support frame has the vertical scale that a plurality of equidistance was arranged, one side of scale is equipped with and is fixed with the centre gripping subassembly through the mounting, the centre gripping is fixed on the experiment body on the centre gripping subassembly, install on the experiment body with the corresponding instruction subassembly of scale, the bottom of centre gripping subassembly is provided with the weight cover.
Preferably, the support frame include with bottom plate fixed connection's two vertical stands, be provided with the horizontal pole between the top of stand, the scale with the centre gripping subassembly is installed the horizontal pole front side.
Preferably, the clamping assembly comprises an upper clamping member and a lower clamping member, the upper clamping assembly and the lower clamping assembly are identical in structure, the upper clamping assembly comprises a fixed plate and a movable plate, and a fastening screw is arranged between the fixed plate and the movable plate.
Preferably, the opposite surfaces of the fixed plate and the movable plate are provided with clamping teeth.
Preferably, the indicating component comprises a fixing clamp, the fixing clamp is clamped and fixed on the experimental body, and a needle-shaped finger piece corresponding to the scale is arranged on the fixing clamp.
Preferably, the weight sleeve comprises a hanging rod connected with the clamping component through a bolt, a weight string is connected to the bottom of the hanging rod, and a fixing nut is installed on the bottom of the weight string through a thread.
Preferably, the bottom plate is a good heat conducting metal plate.
Preferably, the top and the bottom of the test chamber are respectively provided with an air outlet and an air inlet.
Preferably, a movable cover is arranged at the opening of the front side of the test box, and an observation window and a handle are respectively arranged on the movable cover.
Preferably, the inner wall of the test box is provided with a heat-insulating layer, and the heat-insulating layer is made of glass wool.
By adopting the technical scheme, the utility model has the beneficial effects that:
1. according to the utility model, the indicating assembly is arranged to assist an experimenter to clearly see the extension amount of the experimental body, and the weight sleeve replaces the traditional weight tray, so that the weight tray is replaced by the weight string, the operation space is saved, the distance between the ruler and the sample is reduced, and the reading is facilitated; not only convenient to use is difficult for dropping, reduces the space occupation area of centre gripping subassembly and weight cover moreover greatly, improves the space utilization in the proof box, increases the experimental volume of the experimental body, improves experimental efficiency.
2. The clamping component is fixedly provided with an experimental body in a clamping manner, the experimental body is provided with an indicating component corresponding to the scale, and the bottom of the clamping component is provided with a weight sleeve. The indicating component is a needle-shaped indicating component, two indicating chucks with needle-shaped reading indicating parts are additionally arranged on the indicating component, reading can be accurately positioned, reading accuracy is achieved, and accuracy of an experimental result is guaranteed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a front view of the present invention;
FIG. 2 is a schematic diagram of the internal structure of the present invention;
FIG. 3 is a schematic view of the clamping assembly of the present invention;
fig. 4 is a side view of the clamping assembly of the present invention.
The attached drawings are as follows:
1. a test chamber; 2. a base plate; 3. a heater; 4. a support frame; 401. a column; 402. a cross bar; 5. a scale; 6. a clamping assembly; 601. an upper clamping member; 6011. a fixing plate; 6012. a movable plate; 6013. fastening screws; 6014. clamping teeth; 602. a lower clamping member; 7. an indicating component; 701. a fixing clip; 702. a needle-type finger; 8. a weight sleeve; 801. a boom; 802. fixing a nut; 803. a weight string; 9. a fixing member; 10. an exhaust port; 11. an air inlet; 12. a movable cover; 13. an observation window; 14. a handle.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 4, a thermal extension test device, including front side open-ended square test box 1, the bottom of test box 1 is provided with bottom plate 2, the inside of bottom plate 2 is provided with heater 3, heater 3 can adopt the electric stove silk, electric stove pipe etc. heats, be provided with support frame 4 on the bottom plate 2, the top fixed mounting of support frame 4 has the vertical scale 5 that a plurality of equidistance was arranged, one side of scale 5 is equipped with and is fixed with centre gripping subassembly 6 through mounting 9, mounting 9 can be screw or other fixing device, the centre gripping is fixed with the experimental body on the centre gripping subassembly 6, install the instruction subassembly 7 corresponding with scale 5 on the experimental body, the bottom of centre gripping subassembly 6 is provided with weight cover 8.
Specifically, the support frame 4 comprises two vertical columns 401 fixedly connected with the bottom plate 2, a cross rod 402 is arranged between the tops of the columns 401, and the scale 5 and the clamping assembly 6 are installed on the front side of the cross rod 402.
Specifically, the clamping assembly 6 comprises an upper clamping member 601 and a lower clamping member 602, the upper clamping assembly 6 and the lower clamping assembly 6 have the same structure, the surfaces of the upper clamping assembly 6 and the lower clamping assembly 6 are provided with wavy lines, the upper clamping assembly 6 comprises a fixed plate 6011 and a movable plate 6012, and a fastening screw 6013 is arranged between the fixed plate 6011 and the movable plate 6012; with such an arrangement, in use, the experimental body is placed between the movable plate 6012 and the fixed plate 6011, and the movable plate 6012 and the fixed plate 6011 are combined together by the fastening screws 6013, so as to clamp and fix the experimental body.
Specifically, the facing surfaces of the fixed plate 6011 and the movable plate 6012 are provided with clamping teeth 6014; so set up, can increase the coefficient of friction between fixed plate 6011 and movable plate 6012 and the experimental body through setting up centre gripping tooth 6014, and then strengthen the centre gripping effect of fixed plate 6011 and movable plate 6012 to the experimental body.
Specifically, the indicating assembly 7 comprises a fixing clamp 701, the fixing clamp 701 is clamped and fixed on the experimental body, and a needle-shaped finger 702 corresponding to the scale 5 is arranged on the fixing clamp 701; with the arrangement, the indicating component 7 is mounted on the experimental body through the fixing clamp 701, the needle-shaped finger 702 can be accurately combined with the scale 5, and the experimenter can clearly see the extension amount of the experimental body.
Specifically, the weight sleeve 8 comprises a suspension rod 801 bolted to the clamping assembly 6, a weight string 803 is connected to the bottom of the suspension rod 801, and a fixing nut 802 is threadedly mounted on the bottom of the weight string 803; replace traditional weight dish through setting up weight cover 8, can reduce the space area that occupies of weight cover 8, and then improve the space utilization in proof box 1, promote the experiment quantity of the experimental body, improve the experiment effect.
Specifically, the bottom plate 2 is made of a good heat conducting material, such as a metal material, and a 304 stainless steel plate is used in the present embodiment; so set up, make bottom plate 2 can be quick with the heat transfer of heater 3 production to proof box 1 inside, improve the heating effect of device.
Specifically, the top and the bottom of the test chamber 1 are respectively provided with an exhaust port 10 and an air inlet 11; the air in the test chamber 1 can be circulated by providing the exhaust port 10 and the intake port 11.
Specifically, a movable cover 12 is arranged at the front opening of the test box 1, and an observation window 13 and a handle 14 are respectively arranged on the movable cover 12; the movable cover 12 and the handle 14 are arranged to facilitate taking and placing of the experimental body, and the observation window 13 is arranged to facilitate observation and reading of numerical values corresponding to the indication component 7 and the scale 5 by an experimenter. The indicating component 7 comprises a needle-shaped pointer and an indicating chuck which are fixed together, the indicating chuck is made of fluoroplastic, can work within the temperature range of-80 to 250 ℃ for a long time, and has strong mechanical strength. Can resist high temperature without deformation, and realize good measurement precision and accuracy.
Specifically, the inner wall of the test box 1 is provided with a heat-insulating layer, and the heat-insulating layer is made of glass wool; the heat dissipation in the test box 1 can be reduced by arranging the heat preservation layer, and the heat preservation effect of the test box 1 is improved.
The working principle of the scheme is as follows:
when the device is used, the temperature is set, the test box 1 is heated through the heater 3, two gauge distances with the distance of 20mm (the distance can be positioned with any value, and 20mm is assumed in the specification) are drawn on a middle narrow strip of the test body, two ends of the test body are fixed in the clamping component 6, two marking lines with the gauge distance of 20mm are respectively clamped by the fixing clamps 701 of the two indicating components 7, the needle-shaped fingers on the indicating components 7 point to two scale values of the scale 5, a proper weight string 803 is selected according to the test requirements of a sample, the weight string 803 is sleeved on the hanging rod 801, the weight string 803 is fixed through the fixing nuts 802, after the test box 1 reaches the specified temperature, the support frame 4 with the test body is placed in the test box 1, after the specified time, the verticality of the two needle-shaped fingers 702 corresponding to the scale 5 is observed through the observation window 13, the difference between the readings of the two needle-type fingers 702 is the distance between the two marked lines in the extended state, and the thermal elongation of the sample is calculated according to the formula { X-20)/20 × 100% }, where X is the difference between the readings of the two needle-type fingers 702.
According to the utility model, the indicating assembly 7 is arranged to assist an experimenter to clearly see the extension amount of the experimental body, and the weight sleeve 8 is used for replacing the traditional weight tray, so that the experimental box is convenient to use and not easy to fall off, the occupied space areas of the clamping assembly 6 and the weight sleeve 8 are greatly reduced, the space utilization rate in the experimental box 1 is improved, the experimental amount of the experimental body is increased, and the experimental efficiency is improved. The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a hot extension test device, includes front side open square proof box (1), the bottom of proof box (1) is provided with bottom plate (2), the inside of bottom plate (2) is provided with heater (3), its characterized in that: be provided with support frame (4) on bottom plate (2), the top fixed mounting of support frame (4) has vertical scale (5) that a plurality of equidistance was arranged, one side of scale (5) is equipped with and is fixed with centre gripping subassembly (6) through mounting (9), the centre gripping is fixed with the experiment body on centre gripping subassembly (6), install on the experiment body with corresponding instruction subassembly (7) of scale (5), the bottom of centre gripping subassembly (6) is provided with weight cover (8).
2. The thermal extension test apparatus of claim 1, wherein: the support frame (4) comprises two vertical upright posts (401) fixedly connected with the bottom plate (2), a cross rod (402) is arranged between the tops of the upright posts (401), and the scale (5) and the clamping assembly (6) are installed on the front side of the cross rod (402).
3. The thermal extension test apparatus of claim 1, wherein: the clamping assembly (6) comprises an upper clamping piece (601) and a lower clamping piece (602), the upper clamping assembly (6) and the lower clamping assembly (6) are identical in structure, the upper clamping assembly (6) comprises a fixed plate (6011) and a movable plate (6012), and a fastening screw (6013) is arranged between the fixed plate (6011) and the movable plate (6012).
4. The thermal extension test apparatus of claim 3, wherein: clamping teeth (6014) are arranged on the opposite surfaces of the fixed plate (6011) and the movable plate (6012).
5. The thermal extension test apparatus of claim 1, wherein: the indicating component (7) comprises a fixing clamp (701), the fixing clamp (701) is clamped and fixed on the experimental body, and a needle-shaped finger piece (702) corresponding to the scale (5) is arranged on the fixing clamp (701).
6. The thermal extension test apparatus of claim 1, wherein: the weight sleeve (8) comprises a hanging rod (801) in bolted connection with the clamping assembly (6), a weight string (803) is connected to the bottom of the hanging rod (801), and a fixing nut (802) is installed on the bottom of the weight string (803) in a threaded mode.
7. The thermal extension test apparatus of claim 1, wherein: the bottom plate (2) is a heat-conducting metal plate.
8. The thermal extension test apparatus of claim 1, wherein: the top and the bottom of the test box (1) are respectively provided with an exhaust port (10) and an air inlet (11).
9. The thermal extension test apparatus of claim 1, wherein: a movable cover (12) is arranged at the opening of the front side of the test box (1), and an observation window (13) and a handle (14) are respectively arranged on the movable cover (12).
10. The thermal extension test apparatus of claim 1, wherein: the inner wall of the test box (1) is provided with a heat-insulating layer, and the heat-insulating layer is made of glass wool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122088442.4U CN215768347U (en) | 2021-09-01 | 2021-09-01 | Thermal extension test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122088442.4U CN215768347U (en) | 2021-09-01 | 2021-09-01 | Thermal extension test device |
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| Publication Number | Publication Date |
|---|---|
| CN215768347U true CN215768347U (en) | 2022-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122088442.4U Active CN215768347U (en) | 2021-09-01 | 2021-09-01 | Thermal extension test device |
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| Country | Link |
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| CN (1) | CN215768347U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115753443A (en) * | 2022-12-05 | 2023-03-07 | 杭州应敏科技有限公司 | Tool for thermal extension test and thermal extension test device |
| CN116337652A (en) * | 2023-04-18 | 2023-06-27 | 河南检亿科技有限公司 | Intelligent thermal extension measurement system, method and detection equipment |
-
2021
- 2021-09-01 CN CN202122088442.4U patent/CN215768347U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115753443A (en) * | 2022-12-05 | 2023-03-07 | 杭州应敏科技有限公司 | Tool for thermal extension test and thermal extension test device |
| CN116337652A (en) * | 2023-04-18 | 2023-06-27 | 河南检亿科技有限公司 | Intelligent thermal extension measurement system, method and detection equipment |
| CN116337652B (en) * | 2023-04-18 | 2023-11-03 | 河南检亿科技有限公司 | Intelligent thermal extension measurement system, method and detection equipment |
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