Thermal aging oven fixing frame for cable aging test

Abstract

The utility model discloses a thermal aging oven fixing frame for a cable aging test, which comprises a thermal aging oven, and a fixing frame is arranged in the thermal aging oven. The fixing frame comprises upper and lower rotating seats, a rotating column and a plurality of clamp assemblies, the rotating seats are connected through two ends of the rotating column, the plurality of clamp assemblies respectively surround the rotating seats at the upper and lower ends, and a cable to be tested is clamped and fixed through the clamp assemblies; the clamp assembly comprises a base, a stand column, a cross beam and clamping rings, the base is slidably connected with the inner side surface of the rotating seat, the stand column is vertically installed at the upper end of the base, the cross beam is horizontally installed at the upper end of the stand column, and the two sets of clamping rings are located on the cross beam on the two sides of the stand column correspondingly; and meanwhile, the to-be-tested cable is clamped through the clamping ring at the upper end of the clamping ring, so that the cable is stably fixed in the thermal aging box, the operation is simple and convenient, and the testing efficiency and accuracy are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical test equipment, in particular to a thermal aging box fixing frame for cable aging testing. Background Art

[0002] With the rapid development of modern communications technology, cables, as crucial carriers of information transmission, are increasingly valued for their performance, stability, and reliability. Over long-term use, cables can age due to environmental factors such as temperature and humidity, which can affect their transmission performance. Therefore, performing cable aging tests is crucial for evaluating their service life and reliability.

[0003] Existing thermal aging chambers are primarily used to simulate the aging process of cables in high-temperature environments, accelerating the aging process and thereby evaluating cable durability in a shorter period of time. However, in practical applications, the methods for securing the cables under test within thermal aging chambers are inadequate. Traditional securing methods often rely on simple clamps or hanging systems. These methods can easily lead to cable displacement, poor contact, or insecure fixation in high-temperature environments, thus affecting the accuracy and repeatability of test results.

[0004] Furthermore, the cables may undergo physical changes such as expansion and contraction during the thermal aging process, further exacerbating the fixation problem. If the cables move during testing, they may come into contact with the heat source or other components inside the thermal aging chamber, posing a safety hazard or even damaging the cables or test equipment.

[0005] Therefore, the market urgently needs a thermal aging box fixing frame that can effectively fix the cables to be tested. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model discloses a heat aging box fixing frame for cable aging testing, which solves the problem that the existing heat aging test box lacks a fixing mechanism for cables.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: a heat aging box fixing frame for cable aging test, comprising a heat aging box, wherein a fixing frame is provided inside the heat aging box;

[0008] The fixing frame includes a rotating seat, a rotating column and a plurality of clamp assemblies. The rotating seat includes two groups, the upper and lower groups. The rotating column is vertically located between the upper and lower rotating seats. The rotating seat is connected to the rotating seat through the two ends of the rotating column. The plurality of clamp assemblies surround the rotating seats at the upper and lower ends respectively. The cables to be tested are clamped and fixed by the clamp assemblies.

[0009] The clamp assembly includes a base, a column, a beam and a clamping ring. The base is slidably connected to the inner surface of the rotating seat, the column is vertically installed on the upper end of the base, and the beam is horizontally installed on the upper end of the column. Two groups of clamping rings are respectively located on the beams on both sides of the column. The clamping ring includes a collar and a snap ring. The collar provided at the lower end of the clamping ring is slidably engaged with the beam, and the cable to be tested is clamped by the snap ring provided at the upper end of the clamping ring.

[0010] Preferably, an adjusting bolt is provided on one side wall of the collar, and the adjusting bolt cooperates with the threaded hole provided on the collar, and then the position of the clamping rings on both sides on the beam is adjusted by the adjusting bolt to clamp and fix cables of different lengths.

[0011] Preferably, a first tooth is provided at the front end of the clamping ring, and a second tooth is provided at one side of the upper end of the ring. The first tooth and the second tooth are engaged with each other, thereby tightening the clamping ring and completing the clamping and fixing of the cable.

[0012] Preferably, a locking plate is provided on the outer wall surface of the retaining ring, and the first latching tooth and the second latching tooth are engaged with each other by pressing the locking plate. An unlocking plate is provided on the outer wall surface of the second latching tooth, and the second latching tooth is tilted outward by pressing the unlocking plate, and the second latching tooth is separated from the first latching tooth.

[0013] Preferably, a slider is provided at the lower end of the base, and a plurality of sliding grooves are respectively provided on the inner side wall of the rotating seat. The base slides and engages with the sliding grooves on the rotating seat through the slider, so as to facilitate disassembly and assembly.

[0014] Preferably, a sliding shaft is provided at the center of the outer wall of the rotating seat, and sliding grooves are provided on the upper and lower end walls of the heat aging box respectively, and the sliding grooves and the slide shaft cooperate with each other to slide, thereby pushing the rotating seat into the heat aging box.

[0015] Preferably, a rotating shaft is provided at the lower end of the sliding shaft on the rotating seat at the lower end, and a rotating groove is provided at the center position of the tail of the sliding groove at the lower end. The rotating shaft and the rotating groove can rotate freely. After the rotating seat moves to the tail end along the sliding groove through the sliding shaft, the rotating shaft moves down and rotates with the rotating groove, and rotates freely inside the heat aging box, so as to facilitate the placement and removal of the fixture assembly.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention can maintain a stable fixing effect in a high-temperature environment to prevent the cable from shifting. It can adapt to the physical changes of the cable during the thermal aging process, and ensure the accuracy and safety of cable testing by adjusting the structure of the bolts and clamping ring, thereby preventing potential safety accidents. The structural design should be simple and reliable, easy to install and maintain, and provide strong support for cable quality control and performance evaluation.

[0018] 2. In the present invention, the fixing frame can adapt to cables of different diameters and lengths through the sliding and rotating mechanism. The first and second teeth on the clamping ring cooperate with each other to effectively fix the cables, ensuring the stability and uniform heating of the cables during the thermal aging test, thereby improving the versatility and flexibility of the equipment.

[0019] 3. In the present invention, the sliding fit design of the sliding groove and the sliding shaft makes the loading and unloading of the fixing frame simple, reducing the labor intensity of the operator. The structural design of the fixing frame takes into account the space utilization inside the heat aging box, so that multiple fixture assemblies can be placed around the rotating seat. By rotating the rotating seat, the cables on the fixture assembly can be easily taken away, thereby improving the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0021] In the attached figure:

[0022] Figure 1 This is a schematic diagram of the overall structure of the thermal aging box of the utility model;

[0023] Figure 2 This is a schematic diagram of the internal structure of the thermal aging box of the utility model;

[0024] Figure 3 It is a schematic structural diagram of the entire fixing frame of the utility model;

[0025] Figure 4 This is a structural diagram of the rotating seat of the utility model;

[0026] Figure 5 It is a structural diagram of the fixture assembly of the utility model;

[0027] Figure 6 This is a schematic structural diagram of the clamping ring of the utility model;

[0028] Numbers in the figure: 1. Heat aging box; 101. Sliding groove; 102. Rotating groove; 201. Rotating seat; 202. Rotating column; 203. Sliding groove; 204. Sliding shaft; 205. Rotating shaft; 301. Base; 302. Column; 303. Beam; 304. Slider; 401. Ring; 402. Retaining ring; 403. Threaded hole; 404. First tooth; 405. Second tooth; 406. Locking plate; 407. Unlocking plate; 5. Adjusting bolt. DETAILED DESCRIPTION

[0029] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0030] Example: Figure 1 As shown, a heat aging box fixing frame for cable aging test includes a heat aging box 1, and a fixing frame is provided inside the heat aging box 1.

[0031] like Figure 2-Figure 6 As shown, the fixing frame includes a rotating seat 201, a rotating column 202 and a plurality of clamp assemblies. The rotating seat 201 includes two upper and lower groups. The rotating column 202 is vertically located between the upper and lower rotating seats 201. The rotating seat 201 is connected to the rotating seat 201 through the two ends of the rotating column 202. Several clamp assemblies surround the rotating seats 201 at the upper and lower ends respectively. The rotating seats 201 at the upper and lower ends can clamp and fix the cables through the clamp assemblies, and the cables to be tested are clamped and fixed through the clamp assemblies.

[0032] like Figure 4-Figure 6As shown, the clamp assembly includes a base 301, a column 302, a crossbeam 303 and a clamping ring. The base 301 is slidably connected to the inner surface of the rotating base 201. A slider 304 is provided at the lower end of the base 301. The inner wall of the rotating base 201 is respectively provided with a plurality of slide grooves 203. The base 301 slides and engages with the slide grooves 203 on the rotating base 201 through the slider 304, which is convenient for disassembly and assembly. A sliding shaft 204 is provided at the center of the outer wall of the rotating base 201. The upper and lower end walls of the heat aging box 1 are respectively provided with sliding grooves 101. The sliding grooves 101 cooperate with the slide shaft to slide The rotating seat 201 is moved so as to be pushed into the thermal aging box 1; a rotating shaft 205 is provided at the lower end of the sliding shaft 204 on the rotating seat 201 at the lower end, and a rotating groove 102 is provided at the center position of the tail end of the sliding groove 101 at the lower end. The rotating shaft 205 rotates freely with the rotating groove 102. After the rotating seat 201 moves to the tail end along the sliding groove 101 through the sliding shaft 204, the rotating shaft 205 moves down and rotates with the rotating groove 102, and rotates freely inside the thermal aging box 1, so as to facilitate the placement and removal of the fixture assembly; the column 302 is vertically mounted on the base 301 At the end, the beam 303 is horizontally installed on the upper end of the column 302, and the two groups of clamping rings are respectively located on the beams 303 on both sides of the column 302. The clamping ring includes a ring 401 and a clamping ring 402. The ring 401 provided at the lower end of the clamping ring slides with the beam 303, and the clamping ring 402 provided at the upper end of the clamping ring is used to clamp the cable to be tested. The front end of the clamping ring 402 is provided with a first clamping tooth 404, and one side of the upper end of the ring 401 is provided with a second clamping tooth 405. The outer wall of the clamping ring 402 is provided with a locking plate 406. By pressing the locking plate 406, the first clamping tooth 404 and the second clamping tooth 405 are engaged. The teeth 405 are engaged with each other, and an unlocking plate 407 is provided on the outer wall of the second tooth 405. By pressing the unlocking plate 407, the second tooth 405 is tilted outward, and the second tooth 405 is separated from the first tooth 404, thereby realizing the tightening and release of the clamping ring 402, and completing the clamping, fixing and removal of the cable; wherein, an adjusting bolt 5 is provided on one side wall of the ring 401, and the adjusting bolt 5 cooperates with the threaded hole 403 provided on the ring 401, and then the position of the clamping rings on both sides on the beam 303 is adjusted by the adjusting bolt 5, thereby realizing the clamping and fixing of cables of different lengths.

[0033] Specific working principle:

[0034] First, the rotating seat 201 is engaged with the sliding groove 101 inside the thermal aging box 1 through the sliding shaft 204, and the fixed frame is pushed into the thermal aging box 1; the rotating shaft 205 on the rotating seat 201 at the lower end of the sliding shaft 204 is engaged with the rotating groove 102 at the tail of the sliding groove 101, so that the rotating seat 201 can rotate freely in the thermal aging box 1, which is convenient for loading and unloading the fixture assembly; then, the base 301 is slidably engaged with the sliding groove 203 on the rotating seat 201 through the slider 304 to achieve quick disassembly and assembly. The column 302 is vertically mounted on the base 301, and the beam 303 is horizontally mounted on the column 302. Two sets of clamping rings are respectively located on the beams 303 on both sides of the column 302. The cable to be tested is placed in the collar 401 of the clamping ring and initially clamped by the clamping ring 402. By pressing the locking plate 406, the first clamping tooth 404 and the second clamping tooth 405 are engaged with each other to achieve a tight clamping of the cable. If the position of the clamping ring needs to be adjusted, the clamping rings on both sides can be adjusted on the beam 303 by adjusting the bolt 5 to cooperate with the threaded hole 403 on the collar 401. The position can be adjusted to accommodate cables of different lengths; after the cable is clamped and fixed, the thermal aging box 1 is started for testing. During the test, the fixing frame ensures that the cable remains in the predetermined position to avoid deviation in the test results due to cable movement; after the test, the second latching tooth 405 is tilted outward by pressing the unlocking plate 407 and separated from the first latching tooth 404, thereby releasing the tightening of the clamping ring 402 and easily removing the cable; the rotating seat 201 can be easily removed from the thermal aging box 1 through the cooperation of the sliding shaft 204 and the rotating groove 102 for the next round of testing or maintenance.

[0035] The entire workflow achieves stable fixation of the cables in the thermal aging chamber 1 through the design of the fixing frame, is easy to operate, and improves test efficiency and accuracy.

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A heat aging box fixing frame for cable aging test, comprising a heat aging box, characterized in that: A fixing frame is provided inside the thermal aging box; The fixing frame includes a rotating seat, a rotating column and a plurality of clamp assemblies. The rotating seat includes two groups, the upper and lower groups. The rotating column is vertically located between the upper and lower rotating seats. The rotating seat is connected to the rotating seat through the two ends of the rotating column. The plurality of clamp assemblies surround the rotating seats at the upper and lower ends respectively. The cables to be tested are clamped and fixed by the clamp assemblies. The clamp assembly includes a base, a column, a beam and a clamping ring. The base is slidably connected to the inner surface of the rotating seat, the column is vertically installed on the upper end of the base, and the beam is horizontally installed on the upper end of the column. Two groups of clamping rings are respectively located on the beams on both sides of the column. The clamping ring includes a collar and a snap ring. The collar provided at the lower end of the clamping ring is slidably engaged with the beam, and the cable to be tested is clamped by the snap ring provided at the upper end of the clamping ring.

2. The heat aging box fixing frame for cable aging test according to claim 1, characterized in that: An adjusting bolt is provided on one side wall of the collar, and the adjusting bolt cooperates with the threaded hole provided on the collar, and then the position of the clamping rings on both sides on the beam is adjusted by the adjusting bolt to clamp and fix cables of different lengths.

3. The heat aging box fixing frame for cable aging test according to claim 2, characterized in that: A first locking tooth is provided at the front end of the clamping ring, and a second locking tooth is provided at one side of the upper end of the ring. The first locking tooth and the second locking tooth are engaged with each other to tighten the clamping ring and complete the clamping and fixing of the cable.

4. The heat aging box fixing frame for cable aging test according to claim 3, characterized in that: A locking plate is provided on the outer wall of the retaining ring, and the first latching tooth and the second latching tooth are engaged with each other by pressing the locking plate. An unlocking plate is provided on the outer wall of the second latching tooth, and the second latching tooth is tilted outward by pressing the unlocking plate, and the second latching tooth is separated from the first latching tooth.

5. The heat aging box fixing frame for cable aging test according to claim 1, characterized in that: A slider is provided at the lower end of the base, and a plurality of sliding grooves are respectively provided on the inner sidewalls of the rotating base. The base is slidably engaged with the sliding grooves on the rotating base through the slider.

6. The heat aging box fixing frame for cable aging test according to claim 1, characterized in that: A sliding shaft is provided at the center of the outer wall of the rotating seat, and sliding grooves are respectively provided on the upper and lower end walls of the inner side of the thermal aging box. The sliding grooves and the slide shaft cooperate with each other to slide, thereby pushing the rotating seat into the thermal aging box.

7. The heat aging box fixing frame for cable aging test according to claim 6, characterized in that: A rotating shaft is provided at the lower end of the sliding shaft on the rotating seat at the lower end, and a rotating groove is provided at the center position of the tail of the sliding groove at the lower end. The rotating shaft and the rotating groove can rotate freely. After the rotating seat moves to the tail end along the sliding groove through the sliding shaft, the rotating shaft moves down and rotates with the rotating groove, and rotates freely inside the heat aging box, which is convenient for placing and taking out the fixture assembly.

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