Flame-retardant optical fiber cable thermal deformation experimental device

Abstract

The utility model relates to the technical field of optical cable thermal deformation experiment devices, in particular to a flame-retardant optical fiber cable thermal deformation experiment device which comprises a box body, a telescopic rod and a mounting plate, the telescopic rod is fixedly mounted at the bottom of the box body, the other end of the telescopic rod is fixedly connected with the mounting plate, and a dial indicator is in threaded connection in a fixing opening. A heating plate is arranged on the inner side face of the box body, clamping jaws are arranged in the optical cable sleeves and connected with the inner side walls of the optical cable sleeves through telescopic guide rods, hydraulic assemblies are arranged between the optical cable sleeves and the clamping jaws, and one-way valve assemblies are arranged in the side walls of the optical cable sleeves. According to the utility model, the side wall of the optical cable is fixed, so that the optical cable is always kept in a vertical state in the detection process, the middle section of the optical cable is prevented from being bent in the detection process, and meanwhile, the reliability of data is improved in a mode of comprehensive calculation after a plurality of optical cables are detected.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of optical cable thermal deformation experimental devices, in particular to a kind of flame-retardant optical fiber cable thermal deformation experimental devices, belong to optical cable thermal deformation experimental device technical field. BACKGROUND

[0002] Optical fiber cable has different performance when being heated differently, and the performance of optical fiber manufactured by different preparation methods also has certain difference, and optical fiber is often subjected to thermal deformation experiment in the production process of optical fiber, so as to have sufficient understanding of its performance under high temperature environment, to improve the quality and reliability of product, and when detecting thinner optical cable in the production process of factory, the middle section of optical cable is easy to bend in length direction detection, and it is difficult to distinguish by naked eye, thereby causing inaccurate detection result.

[0003] Therefore, it is urgent to improve the flame-retardant optical fiber cable thermal deformation experimental device to solve the above problems. CONTENT OF UTILITY MODEL

[0004] The utility model aims at providing a kind of flame-retardant optical fiber cable thermal deformation experimental device, by the side wall of optical cable is fixed, make optical cable always keep vertical state in the detection process, avoid the middle section of optical cable bending when detecting, simultaneously, by the way of comprehensive calculation after detecting multiple optical cables, improve the reliability of data.

[0005] In order to achieve the above purpose, the main technical scheme of the utility model is as follows: box body, telescopic rod and mounting plate are fixedly installed with telescopic rod at the bottom of box body, the other end of telescopic rod is fixedly connected with mounting plate, guide rod is arranged at the four feet of the bottom of box body, guide rod penetrates mounting plate, fixed plate is arranged at the top of guide rod, a plurality of fixed ports are formed in the top of fixed plate, micrometer is threadedly connected in the fixed port, a plurality of mounting ports are formed in mounting plate, a plurality of optical cable sleeves are fixedly installed in the mounting port, positioning block is fixedly connected on the side surface of guide rod, heating plate is arranged on the inner side surface of box body, clamping jaw is arranged in optical cable sleeve, clamping jaw is connected with the inner side wall of optical cable sleeve through telescopic guide rod, hydraulic assembly is arranged between optical cable sleeve and clamping jaw, one-way valve assembly is arranged in the inner side wall of optical cable sleeve, hydraulic assembly and one-way valve assembly are communicated through oil passage.

[0006] Preferably, the one-way valve assembly includes a ball, a spring, and a mounting sleeve. One end of the spring is fixedly connected in the mounting sleeve, the other end of the spring abuts the ball, the opening of the mounting sleeve is smaller than the diameter of the ball, and the ball is arranged in the mounting sleeve.

[0007] Preferably, the hydraulic assembly comprises a hydraulic sleeve one, a hydraulic sleeve two and a sealing ring, the hydraulic sleeve one is fixedly connected with the clamp jaw, the hydraulic sleeve two is fixedly connected with the inner side wall of the optical cable sleeve, the hydraulic sleeve one is inserted into the inside of the hydraulic sleeve two, and the sealing ring is arranged on the outer side of the hydraulic sleeve one.

[0008] Preferably, an oil discharging port is arranged at the top of the mounting sleeve, and the oil discharging port penetrates the mounting sleeve.

[0009] Preferably, an oil injection port is arranged at the top of the optical cable sleeve, and the oil injection port is communicated with the oil channel.

[0010] Preferably, an oil cover is threadedly connected to the top of the oil injection port, the top of the oil discharging port is the same as the top of the oil injection port, and the oil cover can be threadedly connected to the oil discharging port.

[0011] Preferably, a buffer spring is fixedly connected to the top of the telescopic rod, the other end of the buffer spring is fixedly connected with the mounting plate, and a sleeve is fixedly connected to the bottom of the box body.

[0012] The utility model at least has the following beneficial effects:

[0013] 1. The side wall of the optical cable is fixed, so that the optical cable remains vertical during detection, avoiding bending of the middle section of the optical cable during detection, and the reliability of data is improved through comprehensive calculation after detection of multiple optical cables. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and serve to explain the application without imposing undue limitation thereon. In the drawings:

[0015] Figure 1 An isometric structural schematic view is provided for the utility model;

[0016] Figure 2 An isometric structural schematic view of part of the structure is provided for the utility model;

[0017] Figure 3 An isometric structural schematic view of the optical cable sleeve is provided for the utility model;

[0018] Figure 4 An isometric structural schematic view of the utility model is provided Figure 3 An enlarged schematic view of the structure at A is provided;

[0019] Figure 5 An isometric structural schematic view of the optical cable sleeve is provided for the utility model;

[0020] Figure 6 An exploded structural schematic view of the one-way valve assembly is provided for the utility model;

[0021] Figure 7 The box cross section structure schematic view is provided.

[0022] In the figure, 1, box; 2, telescopic rod; 3, mounting plate; 4, guide rod; 5, fixed plate; 6, fixed mouth; 7, micrometer; 8, hydraulic assembly; 9, one-way valve assembly; 10, mounting mouth; 11, optical cable cover; 12, positioning block; 13, heating plate; 14, clamping jaw; 15, telescopic guide rod; 16, oil way; 17, oil discharge port; 18, oil inlet; 19, oil cover; 20, sleeve; 21, buffer spring; 801, hydraulic cover one; 802, hydraulic cover two; 803, sealing ring; 901, ball; 902, spring; 903, mounting cover. DETAILED DESCRIPTION

[0023] The embodiments of the present application will be described in detail with the accompanying drawings and examples, so that the realization process of how to apply technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.

[0024] As Figures 1-7As shown, the thermal deformation experiment device for the flame-retardant optical fiber cable provided by the embodiment comprises a box body 1, an extension rod 2 and a mounting plate 3, the extension rod 2 is fixedly installed at the bottom of the box body 1, the other end of the extension rod 2 is fixedly connected with the mounting plate 3, each of the four feet at the bottom of the box body 1 is provided with a guide rod 4, the guide rod 4 penetrates through the mounting plate 3 and plays a guiding role on the mounting plate 3, a fixed plate 5 is arranged at the top end of the guide rod 4, a plurality of fixed ports 6 are formed at the top of the fixed plate 5, a micrometer 7 is threadedly connected in each fixed port 6, a plurality of installation ports 10 are formed in the mounting plate 3, a plurality of cable sleeves 11 are fixedly installed in the installation ports 10, a positioning block 12 is fixedly connected to the side surface of the guide rod 4, a heating plate 13 is arranged on the inner side surface of the box body 1, the positioning block 12 is located between the mounting plate 3 and the fixed plate 5 and is used for positioning the mounting plate 3, fixing the optical cable in the cable sleeve 11, then moving the mounting plate 3 upwards by the extension rod 2, stopping the movement of the mounting plate 3 after the mounting plate 3 moves to the positioning plate, at this time, the top of the optical cable in the cable sleeve 11 contacts the micrometer 7, the micrometer 7 is zeroed, then the extension rod 2 moves downwards to place the cable sleeve 11 in the box body 1, the heating plate 13 is started, the inside of the box body 1 and the inside of the cable sleeve 11 are both provided with a heat-conducting medium, the heating plate 13 heats the optical cable through the heat-conducting medium, after the temperature is constant, the optical cable moves upwards by the extension rod 2, the top of the optical cable contacts the micrometer 7 again, the micrometer 7 is read again, the expansion and contraction amount of the optical cable is calculated through the readings of the plurality of optical cables, a clamping jaw 14 is arranged in the cable sleeve 11, the clamping jaw 14 is connected with the inner side wall of the cable sleeve 11 through an extension guide rod 15, a hydraulic assembly 8 is arranged between the cable sleeve 11 and the clamping jaw 14, a one-way valve assembly 9 is arranged in the inner side wall of the cable sleeve 11, the hydraulic assembly 8 and the one-way valve assembly 9 are communicated through an oil path 16, the optical cable is placed in the clamping jaw 14 and keeps a straight state under the pressure of the hydraulic assembly 8, the optical cable is heated and becomes thick after heating, the clamping jaw 14 is pressed and moves outward, the hydraulic oil in the hydraulic assembly 8 flows out through the one-way valve under the pressure of the clamping jaw 14, the one-way valve needs to meet a certain pressure to be pushed, the pressure is greater than the force for keeping the optical cable straight, the side wall of the optical cable is fixed, so that the optical cable always keeps a vertical state during the detection process and avoids the bending of the middle section of the optical cable during the detection, and the reliability of the data is improved through the comprehensive calculation mode after the detection of the plurality of optical cables.

[0025] Wherein, the one-way valve assembly 9 includes a ball 901, a spring 902 and a mounting sleeve 903, one end of the spring 902 is fixedly connected in the mounting sleeve 903, the other end of the spring 902 abuts against the ball 901, the mounting sleeve 903 opening is smaller than the diameter of the ball 901, the ball 901 is arranged in the mounting sleeve 903, the hydraulic assembly 8 includes a hydraulic sleeve one 801, a hydraulic sleeve two 802 and a sealing ring 803, the hydraulic sleeve one 801 is fixedly connected with the jaw 14, the hydraulic sleeve two 802 is fixedly connected with the inner side wall of the cable sleeve 11, the hydraulic sleeve one 801 is inserted into the inside of the hydraulic sleeve two 802, the sealing ring 803 is arranged on the outside of the hydraulic sleeve one 801, and the sealing ring 803 plays a sealing role between the hydraulic sleeve one 801 and the hydraulic sleeve two 802, the mounting sleeve 903 is provided with a oil drain port 17 at the top, the oil drain port 17 penetrates through the mounting sleeve 903, the cable sleeve 11 is provided with an oil inlet 18 at the top, the oil inlet 18 is communicated with the oil way 16, the oil inlet 18 is threadedly connected with an oil cover 19 at the top, the top of the oil drain port 17 is same with the top of the oil inlet 18, the oil cover 19 is threadedly connected with the oil inlet 18, and the oil cover 19 can also be threadedly connected with the oil drain port 17, after the cable is placed in the jaw 14, the oil cover 19 is screwed to the oil drain port 17, then the oil is injected into the oil inlet 18 under pressure, at this time the oil drain port 17 is blocked, the jaw 14 extrudes the cable, so that the jaw 14 is attached to the surface of the cable, then the oil cover 19 is screwed to the oil inlet 18, in the heating process, the jaw 14 moves backward due to the expansion of the cable, the hydraulic oil pushes open the one-way valve assembly 9 under pressure, the oil flows out from the oil drain port 17, and the hydraulic oil stops flowing out after the pressure is insufficient to push open the one-way valve, at this time the pressure can still keep the cable vertical.

[0026] Wherein, as shown in the figure, Figure 7 The top of the telescopic rod 2 is fixedly connected with a buffer spring 21, the other end of the buffer spring 21 is fixedly connected with the mounting plate 3, the bottom of the box body 1 is fixedly connected with a sleeve 20, the sleeve 20 is located outside the telescopic rod 2 and plays a protection role on the telescopic rod 2, when the telescopic rod 2 rises, the mounting plate 3 is in contact with the positioning block 12, and the buffer spring 21 plays a buffering role.

[0027] As shown in the figure, Figures 1-7 The principle of the flame-retardant optical fiber cable thermal deformation experiment device provided by the embodiment is as follows: the positioning block 12 is located between the mounting plate 3 and the fixed plate 5 and is used for positioning the mounting plate 3, the cable is fixed in the cable sleeve 11, then the telescopic rod 2 drives the mounting plate 3 to move upward, the mounting plate 3 stops after moving to the positioning plate, at this time the top of the cable in the cable sleeve 11 is in contact with the dial gauge 7, the dial gauge 7 is zeroed, then the telescopic rod 2 moves downward to place the cable sleeve 11 in the box body 1, the heating plate 13 is started, the inside of the box body 1 and the inside of the cable sleeve 11 are both provided with a heat-conducting medium, the heating plate 13 heats the cable through the heat-conducting medium, after the temperature is constant, the telescopic rod 2 drives the cable to move upward, the top of the cable is in contact with the dial gauge 7 again, the dial gauge 7 is read again, and the expansion amount of the cable is calculated through the readings of a plurality of cables.

[0028] When the optical cable is inside the optical cable sleeve 11, it is positioned within the clamp 14. Under the pressure of the hydraulic component 8, the optical cable remains straight. After heating, the optical cable thickens and presses against the clamp 14, causing it to move outward. The hydraulic oil in the hydraulic component 8 flows out through the check valve under the pressure of the clamp 14. The check valve requires a certain pressure to be pushed, and this pressure is greater than the force that keeps the optical cable straight. By fixing the sidewalls of the optical cable, it is ensured that the optical cable remains vertical during the testing process, preventing bending in the middle section of the optical cable during testing. At the same time, by comprehensively calculating the results after testing multiple optical cables, the reliability of the data is improved.

[0029] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0030] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.

[0031] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A kind of flame-retardant optical fiber cable thermal deformation experimental device, including box (1), telescopic rod (2) and mounting plate (3), it is characterized by: The box (1) bottom fixed installation has telescopic link (2), telescopic link (2) other end and the mounting plate (3) fixed connection, the box (1) bottom four legs are equipped with guide rod (4), the guide rod (4) passes through the mounting plate (3), the guide rod (4) top is equipped with fixed plate (5), the fixed plate (5) top is equipped with multiple fixed mouth (6), the fixed mouth (6) is screwed in the micrometer (7), the mounting plate (3) is equipped with multiple installation mouth (10), the installation mouth (10) is fixedly installed in multiple optical cable sleeve (11), the guide rod (4) side fixed connection has location block (12), the box (1) inner side is equipped with heating plate (13), the optical cable sleeve (11) is equipped with clamp jaw (14), the clamp jaw (14) is connected with the optical cable sleeve (11) inner side wall through telescopic guide rod (15), the optical cable sleeve (11) and the clamp jaw (14) between be equipped with hydraulic assembly (8), the optical cable sleeve (11) side wall inside is equipped with check valve assembly (9), the hydraulic assembly (8) and the check valve assembly (9) are communicated through oil circuit (16).

2. The thermal deformation test apparatus for a flame-retardant optical fiber cable according to claim 1, characterized by: The check valve assembly (9) includes a ball (901), a spring (902) and a mounting sleeve (903), one end of the spring (902) is fixedly connected in the mounting sleeve (903), the other end of the spring (902) abuts against the ball (901), the mounting sleeve (903) opening is smaller than the diameter of the ball (901), and the ball (901) is arranged in the mounting sleeve (903).

3. The thermal deformation test apparatus for a flame-retardant optical fiber cable according to claim 1, characterized by: The hydraulic assembly (8) includes a hydraulic sleeve one (801), a hydraulic sleeve two (802) and a sealing ring (803), the hydraulic sleeve one (801) is fixedly connected with the clamp jaw (14), the hydraulic sleeve two (802) is fixedly connected with the inner side wall of the optical cable sleeve (11), the hydraulic sleeve one (801) is inserted into the hydraulic sleeve two (802), and the sealing ring (803) is sleeved on the outer side of the hydraulic sleeve one (801).

4. The thermal deformation test apparatus for a flame-retardant optical fiber cable according to claim 2, characterized by: The mounting sleeve (903) top is equipped with oil drain port (17), the oil drain port (17) penetrates the mounting sleeve (903).

5. The thermal deformation test apparatus for a flame-retardant optical fiber cable according to claim 4, characterized by: The optical cable sleeve (11) top is equipped with oil inlet (18), and the oil inlet (18) is communicated with the oil circuit (16).

6. The thermal deformation test apparatus for a flame-retardant optical fiber cable according to claim 5, characterized by: The oil inlet (18) top is screwed with an oil cover (19), the oil drain port (17) top is same with the oil inlet (18) top, and the oil cover (19) can be screwed with the oil drain port (17).

7. The thermal deformation test apparatus for a flame-retardant optical fiber cable according to claim 1, characterized by: The telescopic link (2) top is fixedly connected with a buffer spring (21), the other end of the buffer spring (21) is fixedly connected with the mounting plate (3), and the box (1) bottom is fixedly connected with a sleeve (20).

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