Drying oven for cable thermal extension experiment

Abstract

The utility model relates to the technical field of drying ovens for cable thermal extension experiments, in particular to a drying oven for cable thermal extension experiments, which comprises a drying oven body, a support frame is fixedly mounted in the drying oven body, a first fixing block is fixedly mounted on one side of the support frame, and a second fixing block is movably mounted on one side of the support frame. Two sliding rods are symmetrically installed between the bottom of the first fixing block and the inner wall of the drying oven body. According to the utility model, through the arrangement of the support frame, the first fixing block, the second fixing block, the balancing weights, the fixing plate, the first bolt and the threaded hole, when a cable needs to be tested, a proper number of balancing weights can be selected to match the corresponding weight to test the cable according to the specification of the cable and the test requirement; a large amount of time and energy do not need to be consumed to select weights with proper weights one by one and hang the weights on designated positions of the cable, the operation steps of the experiment are reduced, the working efficiency is improved, and the cable can be fixed and prevented from loosening and falling off through the arrangement of the clamping structure.

Description

Technical Field

[0001] This utility model relates to an oven for cable thermal stretching test, and in particular to an oven for cable thermal stretching test, belonging to the technical field of ovens for cable thermal stretching test. Background Technology

[0002] As the name suggests, a cable thermal elongation test oven is used to conduct thermal elongation tests on cables. This test is mainly used to measure the elongation and permanent deformation rate of cross-linked cable insulation and sheath materials under heat and load to determine the properties of the materials or to test the degree of cross-linking. By heating the cable sample and applying a certain load, the working environment of the cable in actual use is simulated.

[0003] However, traditional testing methods require manual hanging of weights on the cable for testing. According to the cable specifications and testing requirements, appropriate weights must be selected one by one and hung on the designated position of the cable. This method cannot directly select the appropriate counterweight, which requires a lot of time and effort to operate, increases the number of experimental steps, and reduces work efficiency.

[0004] Therefore, it is urgent to improve the oven used for cable thermal stretching tests to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this invention is to provide an oven for cable thermal extension testing. Through the arrangement of a support frame, a first fixing block, a second fixing block, a counterweight, a fixing plate, a first bolt, and threaded holes, when testing cables, it is convenient to select an appropriate number of counterweights to match the corresponding weight according to the cable specifications and testing requirements. This eliminates the need to spend a lot of time and effort selecting appropriate weights one by one and hanging them on the designated positions of the cable, reducing experimental steps and increasing work efficiency. The clamping structure can also fix the cable to prevent loosening and falling off.

[0006] In order to achieve the above object, the utility model adopts the main technical scheme including: the oven body, the support frame is fixedly installed in the oven body, the first fixed block is fixedly installed on one side of the support frame, the second fixed block is movably installed on one side of the support frame, two slide rods are symmetrically installed between the first fixed block bottom and the oven body inner wall, the second fixed block is connected between the two slide rods, a plurality of counterweights are connected between the two slide rods, the fixed plate is fixedly installed on the second fixed block bottom, a plurality of first bolts are screw threadedly connected on the fixed plate, the threaded hole that is matched with the first bolt is formed in the counterweight, the support block is fixedly installed on one side of the first fixed block and the second fixed block, the through hole is formed in the first fixed block and the second fixed block, and the clamping mechanism is arranged between the two through holes and the two support blocks

[0007] Preferably, the clamping mechanism comprises a first sliding groove formed in the top of the support block, a first threaded rod rotatably installed in the first sliding groove, a support plate screw threadedly connected on the first threaded rod, a push rod fixedly installed on one side of the support plate and an arc-shaped clamping plate arranged in the through hole, one end of the push rod is movably inserted into the through hole and connected with one side of the arc-shaped clamping plate, and the support block is rotatably installed with a handle connected with one end of the first threaded rod.

[0008] Preferably, the counterweight is located below the second fixed block, and the two through holes are located on the same vertical line.

[0009] Preferably, the scale is fixedly installed in the oven body, the thimble is fixedly installed on one side of the second fixed block, and the thimble is movably sleeved on the scale.

[0010] Preferably, the protective door is movably installed on the front end surface of the oven body, and the observation window is arranged on the protective door.

[0011] Preferably, two second sliding grooves are symmetrically formed in the inner wall of the oven body, a second threaded rod is rotatably installed in each of the two second sliding grooves, a scraper is screw threadedly connected between the two second threaded rods, and a driving motor connected with one end of the second threaded rod is fixedly installed on one side of the oven body.

[0012] Preferably, the scraper is attached to the surface of the observation window, and the two driving motors are synchronous motors with the same rotational speed and the same direction.

[0013] Preferably, a plurality of universal wheels are fixedly installed on the bottom of the oven body, and a plurality of anti-skid convex strips are arranged on one side of the arc-shaped clamping plate.

[0014] The utility model has at least the following beneficial effects: through the setting of support frame, first fixed block, second fixed block, counterweight block, fixed plate, first bolt, threaded hole, when needing to test the cable, can according to cable specification and test demand, select the proper number of counterweight block to test use, the first bolt of the selected counterweight block side is rotated, makes it continuously moves to the inside of threaded hole, limits and fixes the counterweight block, according to cable specification and test need, select the proper number of counterweight block to match the corresponding weight to test the cable, in this way, the proper counterweight can be selected directly, without spending a lot of time and energy to select the weight of the weight one by one and hang on the specified position of the cable, reduce the operation step of experiment, increase the working efficiency, through the cooperation of slide and second fixed block, first fixed block and second fixed can clamp and fix the cable of different lengths, increase the practicability, through the setting of clamping structure, the cable can be clamped and fixed between arc clamping plate and through hole tightly, prevent the situation of loosening and falling off. BRIEF DESCRIPTION OF DRAWINGS

[0015] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application, the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application. In the drawings:

[0016] Figure 1 It is the whole structure schematic diagram of the utility model;

[0017] Figure 2 It is the half cut structure schematic diagram of the utility model;

[0018] Figure 3 It is the utility model's Figure 2 A place amplification schematic diagram;

[0019] Figure 4 It is the counterweight block and first bolt structure schematic diagram of the utility model;

[0020] Figure 5 It is the second threaded rod and scraper structure schematic diagram of the utility model.

[0021] In the drawing, 1, oven body;2, support frame;3, first fixed block;4, second fixed;5, slide;6, counterweight block;7, fixed plate;8, first bolt;9, threaded hole;10, support block;11, through hole;12, clamping mechanism;13, first sliding slot;14, first threaded rod;15, support plate;16, push rod;17, arc clamping plate;18, scale;19, collar;20, protection door;21, observation window;22, second sliding slot;23, second threaded rod;24, scraper;25, driving motor;26, universal wheel;27, anti -skid convex strip;28, steering wheel. DETAILED DESCRIPTION

[0022] The embodiments of the present application will be described in detail with reference to the drawings and examples, so that the implementation process of how the present application applies technical means to solve technical problems and achieves technical effects can be fully understood and implemented.

[0023] As Figures 1-5 shown, the present embodiment provides an oven for cable thermal extension experiment, an oven for cable thermal extension experiment, including oven body 1, the inside of oven body 1 is fixedly installed with support frame 2, one side of support frame 2 is fixedly installed with first fixed block 3, one side of support frame 2 is movably installed with second fixed block 4, two slide rods 5 are symmetrically installed between the bottom of first fixed block 3 and the inner wall of oven body 1, second fixed block 4 is slidingly connected between the two slide rods 5, a plurality of counterweight blocks 6 are slidingly connected between the two slide rods 5, a fixed plate 7 is fixedly installed at the bottom of second fixed block 4, a plurality of first bolts 8 are threadedly connected on the fixed plate 7, threaded holes 9 adapted to the first bolts 8 are formed on the counterweight blocks 6, support blocks 10 are fixedly installed on one side of first fixed block 3 and second fixed block 4, through holes 11 are formed on first fixed block 3 and second fixed block 4, clamping mechanisms 12 are arranged between the two through holes 11 and the two support blocks 10, the counterweight blocks 6 are located below the second fixed block 4, the two through holes 11 are located on the same vertical line, the clamping mechanism 12 includes a first sliding groove 13 formed on the top of the support block 10, a first threaded rod 14 rotatably installed in the first sliding groove 13, a support plate 15 threadedly connected on the first threaded rod 14, a push rod 16 fixedly installed on one side of the support plate 15, and an arc-shaped clamping plate 17 arranged in the through hole 11, one end of the push rod 16 movably penetrates into the through hole 11 and is connected with one side of the arc-shaped clamping plate 17, a handle 28 connected with one end of the first threaded rod 14 is rotatably installed on one side of the support block 10.

[0024] In this embodiment, when the cable needs to be tested, the appropriate number of counterweights 6 can be selected according to the cable specifications and test requirements for testing. The first bolt 8 on one side of the selected counterweight 6 is rotated to move inward to the inside of the threaded hole 9, and the counterweight 6 is limited and fixed, so that the appropriate counterweight can be directly selected, and the appropriate weight of the weight is not needed to be selected one by one and hung on the specified position of the cable, which reduces the operation steps of the experiment and increases the work efficiency. The cable is placed between the two through holes 11 and fixed by the two clamping mechanisms 12. When fixing, the handle 28 is rotated to drive the first threaded rod 14 to rotate. The first threaded rod 14 is continuously rotated to drive the support plate 15 to push the push rod 16 to move continuously into the through hole 11. The cable is firmly clamped between the arc-shaped clamping plate 17 and the through hole 11 by the arc-shaped clamping plate 17, so that the cable is prevented from loosening and falling off. The second fixing block 4 can move up and down on the surface of the slide rod 5, so that the distance between the first fixing block 3 and the second fixing block 4 can be adjusted according to the length of the cable, and the first fixing block 3 and the second fixing block 4 can clamp and fix cables of different lengths, thereby increasing the practicability. The oven body 1 can heat the cable to test the elongation and permanent deformation of the cable under the action of heat and weight.

[0025] As shown in Figure 4 , the oven body 1 is fixedly installed with a scale 18 inside, and the second fixing block 4 is fixedly installed with a sleeve ring 19 on one side. The sleeve ring 19 is movably sleeved on the scale 18.

[0026] In this embodiment, when the tested cable is elongated and deformed under heat and weight, the second fixing block 4 moves downward with the elongation and deformation of the cable, and the sleeve ring 19 moves downward synchronously with the second fixing block 4. By observing the position of the sleeve ring 19 on the scale 18, the length change of the cable before and after being stressed can be accurately measured, and the length of the cable after stretching can be timely checked, so that the staff can timely record the relevant data.

[0027] As shown in Figure 2 and Figure 5 , the oven body 1 is movably installed with a protective door 20 at the front end, the protective door 20 is provided with an observation window 21, the inner wall of the oven body 1 is symmetrically provided with two second sliding grooves 22, the second threaded rods 23 are rotatably installed in the two second sliding grooves 22, the scraper 24 is threadedly connected between the two second threaded rods 23, the drive motors 25 are fixedly installed on one side of the oven body 1 and connected with one ends of the second threaded rods 23, the scraper 24 is attached to the surface of the observation window 21 on one side, and the two drive motors 25 are synchronous motors with the same speed and direction.

[0028] In the embodiment, the setting of the observation window 21 facilitates observation of the inside of the oven body 1 without opening the protective door 20. When the protective door 20 is opened, external moisture may adhere to the observation window 21 to form fog, affecting the line of sight. At this time, the protective door 20 is closed, and the driving motor 25 is started to drive the second threaded rod 23 to rotate. The second threaded rod 23 continuously rotates to drive the scraper 24 to move. The scraper 24 can scrape off the fog on the surface of the observation window 21, preventing the fog from affecting the line of sight, and ensuring that the experimenter can clearly see the inside of the oven body 1 through the observation window 21.

[0029] As shown in Figure 1 The oven body 1 is fixedly installed with a plurality of universal wheels 26 at the bottom, and the arc-shaped clamping plate 17 is provided with a plurality of anti-skid protrusions 27 on one side.

[0030] In the embodiment, the setting of the universal wheels 26 facilitates the movement of the oven body 1 to various positions as needed, increasing the overall flexibility. When the cable is clamped and fixed, the setting of the anti-skid protrusions 27 can increase the friction between the arc-shaped clamping plate 17 and the cable, preventing sliding.

[0031] As shown in Figures 1-5 The principle of the oven for cable thermal extension experiment provided in the embodiment is as follows: when the cable needs to be tested, a proper number of counterweights 6 can be selected for testing according to the cable specifications and testing needs. The first bolt 8 on one side of the selected counterweight 6 is rotated to continuously move inward into the threaded hole 9 to position and fix the counterweight 6. A proper number of counterweights 6 can be selected to match the corresponding weight for testing the cable according to the cable specifications and testing needs. In this way, the appropriate counterweight can be directly selected without spending a lot of time and effort to select the appropriate weight of the weight and hang it at the specified position of the cable, reducing the operation steps of the experiment and increasing the work efficiency. The cable is placed between the two through holes 11 and fixed by the two clamping mechanisms 12. When fixing, the handle 28 is rotated to drive the first threaded rod 14 to rotate. The first threaded rod 14 continuously rotates to drive the support plate 15 to push the push rod 16 to continuously move into the through hole 11. The arc-shaped clamping plate 17 can firmly clamp the cable between the arc-shaped clamping plate 17 and the through hole 11, preventing loosening and falling. The second fixing block 4 can move up and down on the surface of the slide rod 5, facilitating adjustment of the distance between the first fixing block 3 and the second fixing block 4 according to the length of the cable, so that the first fixing block 3 and the second fixing block 4 can clamp and fix cables of different lengths, increasing the practicability. The oven body 1 can heat the cable to test the elongation and permanent deformation of the cable under the action of heat and weight.

[0032] As used in the specification and claims, some terms can have particular meanings. Those of skill in the art will understand that different manufacturers can refer to a component by different names. The specification and claims should not be construed as limited to the aforementioned terms that are merely exemplary. The specification and claims should be construed to refer to the component by any name, including but not limited to the name used herein, that is equivalent in function to the reference component. As used in the specification and claims, "comprising" is to be read as "comprising, without limitation." "Approximately" means within a range that is acceptable for the technical effect, and that a person of skill in the art would recognize as acceptable.

[0033] It is to be understood that the terms "including", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0034] The above description illustrates and describes several preferred embodiments of the present application, but as stated above, the present application is not to be limited to the specific forms or methods disclosed. Rather, it is to be understood that the present application is to be measured in terms of the claims appended hereto, and that various modifications, changes, and substitutions can be made therein without departing from the spirit of the present application.

Claims

1. An oven for cable thermal extension experiments, comprising an oven body (1), characterized in that: The oven body (1) is internally fixedly installed with a support frame (2), one side of the support frame (2) is fixedly installed with a first fixed block (3), one side of the support frame (2) is movably installed with a second fixed block (4), two slide rods (5) are symmetrically installed between the first fixed block (3) bottom and the oven body (1) inner wall, the second fixed block (4) is slidably connected between the two slide rods (5), a plurality of counterweight blocks (6) are slidably connected between the two slide rods (5), the second fixed block (4) bottom is fixedly installed with a fixed plate (7), a plurality of first bolts (8) are threadedly connected on the fixed plate (7), the counterweight blocks (6) are provided with threaded holes (9) matched with the first bolts (8), the first fixed block (3) and the second fixed block (4) are both fixedly installed with support blocks (10), the first fixed block (3) and the second fixed block (4) are both provided with through holes (11), and clamping mechanisms (12) are arranged between the two through holes (11) and the two support blocks (10).

2. The oven for cable heat run test according to claim 1, characterized in that: The clamping mechanism (12) comprises a first sliding groove (13) formed in the top of the support block (10), a first threaded rod (14) rotatably installed in the first sliding groove (13), a support plate (15) threadedly connected on the first threaded rod (14), a push rod (16) fixedly installed on one side of the support plate (15), and an arc-shaped clamping plate (17) arranged in the through hole (11), one end of the push rod (16) is movably inserted into the through hole (11) and connected with one side of the arc-shaped clamping plate (17), and the support block (10) is rotatably installed with a handle (28) connected with one end of the first threaded rod (14).

3. The oven for cable heat run test according to claim 1, characterized in that: The counterweight blocks (6) are located below the second fixed block (4), and the two through holes (11) are located on the same vertical line.

4. The oven for cable heat run test according to claim 1, characterized in that: The oven body (1) is internally fixedly installed with a scale (18), and the second fixed block (4) is fixedly installed with a sleeve ring (19) on one side.

5. The oven for cable heat run test according to claim 1, wherein: The oven body (1) is movably installed with a protective door (20) on the front end face, and the protective door (20) is provided with an observation window (21).

6. The oven for cable heat run test according to claim 5, characterized in that: The oven body (1) is internally fixedly installed with a scale (18), and the second fixed block (4) is fixedly installed with a sleeve ring (19) on one side.

7. The oven for cable heat run test according to claim 6, characterized in that: The side of the scraper (24) is attached to the surface of the observation window (21), and the two drive motors (25) are synchronous motors with the same rotational speed and direction.

8. The oven for cable heat run test according to claim 2, characterized in that: The oven body (1) is internally fixedly installed with a scale (18), and the second fixed block (4) is fixedly installed with a sleeve ring (19) on one side. The side of the scraper (24) is attached to the surface of the observation window (21), and the two drive motors (25) are synchronous motors with the same rotational speed and direction. The oven body (1) is internally fixedly installed with a scale (18), and the second fixed block (4) is fixedly installed with a sleeve ring (19) on one side.

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