A portable box of a mutual inductor comprehensive tester
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-24
- Publication Date
- 2026-08-11
AI Technical Summary
[0003]互感器综合测试仪常由检测人员携带外出使用,携带过程中如果产生剧烈颠簸,设备可能因此受损,一般的互感器综合测试仪便携性类似公文箱,互感器综合测试仪在其内容易受损,因此提出一种互感器综合测试仪便携箱
[0018] This invention, by incorporating a slider, support rod, positioning block, spring sleeve rod, and protective frame pad, allows for easy carrying of the current transformer integrated tester by simply closing the case and holding the handle. During transport, the current transformer integrated tester remains vertical, and the protective frame pad covers its exterior, preventing rigid impacts during bumps. The two spring sleeve rods on the same positioning block, when subjected to force, one compresses while the other stretches, reducing the peak impact on the current transformer integrated tester and lowering the risk of damage.
Smart Images

Figure CN224618402U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of portable tester cases, and in particular to a portable tester case for a mutual inductor integrated tester. Background Technology
[0002] The instrument transformer comprehensive tester is a multi-functional power testing device specifically designed for testing and verifying the performance of current transformers and voltage transformers. It is widely used in power systems, substations, industrial and mining enterprises, and metering and testing institutions to ensure that the accuracy, safety, and reliability of instrument transformers meet the standards.
[0003] Instrument transformer integrated testers are often carried by testing personnel when they are out and about. If there are severe bumps during the transport, the equipment may be damaged. The portability of a typical instrument transformer integrated tester is similar to that of a briefcase, and the instrument transformer integrated tester is easily damaged inside. Therefore, a portable case for an instrument transformer integrated tester is proposed. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a portable case for a comprehensive instrument for current transformers, which has a certain shock absorption effect and can reduce the risk of damage to the comprehensive instrument for current transformers.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0006] This utility model discloses a portable case for a comprehensive instrument for current transformers, including a case body, a case cover hinged to the top of the case body, a sliding groove formed on the inner bottom wall of the case body, a slider slidably disposed inside the sliding groove, a support rod fixedly disposed on the top of the slider, a tray fixedly disposed on the top of the support rod, and the top of the tray is used to fix the comprehensive instrument for current transformers.
[0007] A positioning block is fixedly installed on the inner bottom wall of the box and between the sliding grooves. Spring sleeve rods are fixedly installed on both the left and right sides of the positioning block. The end of the spring sleeve rod away from the positioning block is fixedly connected to the support rod.
[0008] The inner wall of the enclosure is fixedly provided with a protective frame pad, which is used to cover the outside of the instrument transformer integrated tester for protection.
[0009] As a preferred technical solution of this utility model, the interior of the box is provided with a guide device that extends through to the bottom of the box, and a base plate is fixedly provided at the bottom of the guide device.
[0010] As a preferred embodiment of this utility model, a rubber pad is fixedly provided at the bottom of the base plate, and a buffer airbag is fixedly provided at the top of the base plate.
[0011] As a preferred embodiment of this utility model, the guiding device includes a guide rod, a limiting disc, and a spring, wherein...
[0012] There are four guide rods, located at the four bottom corners of the box, which extend from the bottom of the box into the interior of the box.
[0013] The limiting plate is fixedly installed at the top of the guide rod;
[0014] There are eight springs in total. Two springs are fitted on the outside of each guide rod. The two springs are fixed to the bottom of the limiting plate and the top of the base plate, respectively, and their other ends are fixedly connected to the box body.
[0015] As a preferred embodiment of this utility model, the spring sleeve includes a sleeve and a telescopic spring. The telescopic spring is sleeved on the outside of the sleeve. The two ends of the telescopic spring are fixedly connected to the positioning block and the support rod, respectively. The sleeve includes an outer tube and an inner rod. The outer tube is fixedly connected to the positioning block, and the inner rod is fixedly connected to the support rod. One end of the inner rod extends into the interior of the outer tube.
[0016] As a preferred embodiment of this utility model, a handle is fixedly provided on the right side of the box body, and buckles are fixedly provided on the right side of the box body and the box lid.
[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0018] This invention, by incorporating a slider, support rod, positioning block, spring sleeve rod, and protective frame pad, allows for easy carrying of the current transformer integrated tester by simply closing the case and holding the handle. During transport, the current transformer integrated tester remains vertical, and the protective frame pad covers its exterior, preventing rigid impacts during bumps. The two spring sleeve rods on the same positioning block, when subjected to force, one compresses while the other stretches, reducing the peak impact on the current transformer integrated tester and lowering the risk of damage. Attached Figure Description
[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0020] Figure 1 This is a cross-sectional view of the present invention;
[0021] Figure 2 This is a front view of the present invention;
[0022] Figure 3 This is a utility model Figure 1 Enlarged view of point A in the middle;
[0023] Figure 4 This is a schematic diagram of an embodiment of the present invention when carried out.
[0024] In the diagram: 1. Box body; 101. Handle; 102. Buckle; 2. Box cover; 3. Slide groove; 4. Slider; 5. Support rod; 6. Tray; 7. Positioning block; 8. Spring sleeve rod; 9. Guide device; 91. Guide rod; 92. Limiting plate; 93. Spring; 10. Base plate; 11. Buffer airbag; 12. Protective frame pad; 13. Current transformer comprehensive tester. Detailed Implementation
[0025] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.
[0026] In the attached diagram, all identical reference numerals refer to the same components.
[0027] Example 1
[0028] like Figure 1-3 As shown, this utility model provides a portable case for a comprehensive transformer tester, including a case body 1, a case cover 2 hinged to the top of the case body 1, a handle 101 fixedly provided on the right side of the case body 1, and a buckle 102 fixedly provided on the right side of the case body 1 and the case cover 2. The buckle 102 includes a buckle seat and a buckle hook. The buckle seat is riveted to the right side of the case cover 2, and the buckle hook is riveted to the right side of the case body 1. A sliding groove 3 is provided on the inner bottom wall of the case body 1. A slider 4 is slidably arranged inside the sliding groove 3. A support rod 5 is fixedly provided on the top of the slider 4. A support plate 6 is fixedly provided on the top of the support rod 5. The top of the support plate 6 is used to fix the comprehensive transformer tester 13.
[0029] It should be noted that a rubber pad is glued to the top of the tray 6, and the current transformer integrated tester 13 is fixed to the tray 6 with screws.
[0030] In this embodiment, a positioning block 7 is fixedly installed on the inner bottom wall of the housing 1 and between the slide grooves 3. Spring sleeve rods 8 are fixedly installed on both the left and right sides of the positioning block 7. The end of the spring sleeve rod 8 away from the positioning block 7 is fixedly connected to the support rod 5. The spring sleeve rod 8 includes a sleeve rod and a telescopic spring. The telescopic spring is sleeved on the outside of the sleeve rod. The two ends of the telescopic spring are fixedly connected to the positioning block 7 and the support rod 5 respectively. The sleeve rod includes an outer tube and an inner rod. The outer tube is fixedly connected to the positioning block 7, and the inner rod is fixedly connected to the support rod 5. One end of the inner rod extends into the interior of the outer tube.
[0031] In addition, a protective frame pad 12 is adhered to the inner wall of the housing 1. The protective frame pad 12 is used to cover the outside of the transformer integrated tester 13 for protection.
[0032] In this embodiment, the interior of the box 1 is provided with a guide device 9 that extends through to the bottom of the box 1. A base plate 10 is fixedly installed at the bottom of the guide device 9. A rubber pad is fixedly installed at the bottom of the base plate 10. A buffer airbag 11 is fixedly installed at the top of the base plate 10.
[0033] Specifically, the guide device 9 includes guide rods 91, limiting discs 92, and springs 93. There are four guide rods 91, which are located at the four bottom corners of the box 1 and extend from the bottom of the box 1 into the interior of the box 1. The limiting discs 92 are fixedly installed on the top of the guide rods 91. There are eight springs 93, with two springs 93 sleeved on the outside of each guide rod 91. The two springs 93 are fixed to the bottom of the limiting discs 92 and the top of the base plate 10, respectively, and their other ends are fixedly connected to the box 1.
[0034] Please see Figure 4 This utility model, by setting up a slider 4, support rod 5, positioning block 7, spring sleeve rod 8 and protective frame pad 12, allows the current transformer integrated tester 13 to be carried out by simply closing the case cover 2 and holding the handle 101. During the carrying process, the current transformer integrated tester 13 is in a vertical position. The protective frame pad 12 covers the outside of the current transformer integrated tester 13, so it will not be subjected to rigid impact when bumped. When the two spring sleeve rods 8 on the same positioning block 7 are subjected to force, one is compressed and the other is stretched, which can reduce the peak impact of the current transformer integrated tester 13 and reduce the risk of damage to the current transformer integrated tester 13.
[0035] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A portable case for a comprehensive tester of mutual inductors, comprising a case body (1), wherein a case cover (2) is hinged to the top of the case body (1), characterized in that, The inner bottom wall of the box (1) is provided with a sliding groove (3), and a slider (4) is slidably arranged inside the sliding groove (3). A support rod (5) is fixedly arranged on the top of the slider (4), and a tray (6) is fixedly arranged on the top of the support rod (5). The top of the tray (6) is used to fix the transformer integrated tester (13). A positioning block (7) is fixedly installed on the inner bottom wall of the box (1) and between the slide grooves (3). A spring sleeve rod (8) is fixedly installed on both the left and right sides of the positioning block (7). The end of the spring sleeve rod (8) away from the positioning block (7) is fixedly connected to the support rod (5). The inner wall of the housing (1) is fixedly provided with a protective frame pad (12), which is used to cover the outside of the transformer integrated tester (13) for protection.
2. The portable case for a comprehensive tester of mutual inductors according to claim 1, characterized in that, The box (1) is provided with a guide device (9) that extends through to the bottom of the box (1), and a bottom plate (10) is fixedly provided at the bottom of the guide device (9).
3. The portable case for a comprehensive tester of mutual inductors according to claim 2, characterized in that, A rubber pad is fixedly installed at the bottom of the base plate (10), and a buffer airbag (11) is fixedly installed at the top of the base plate (10).
4. A portable case for a comprehensive tester of mutual inductors according to claim 2, characterized in that, The guiding device (9) includes a guide rod (91), a limiting disc (92), and a spring (93), wherein, There are four guide rods (91), which are located at the four bottom corners of the box (1) and extend from the bottom of the box (1) into the interior of the box (1); The limiting plate (92) is fixedly installed on the top of the guide rod (91); There are eight springs (93), and two springs (93) are fitted on the outside of each guide rod (91). The two springs (93) are fixed to the bottom of the limiting plate (92) and the top of the base plate (10), respectively, and their other ends are fixedly connected to the box (1).
5. A portable case for a comprehensive tester of instrument transformers according to claim 1, characterized in that, The spring sleeve (8) includes a sleeve and a telescopic spring. The telescopic spring is sleeved on the outside of the sleeve. The two ends of the telescopic spring are fixedly connected to the positioning block (7) and the support rod (5) respectively. The sleeve includes an outer tube and an inner rod. The outer tube is fixedly connected to the positioning block (7). The inner rod is fixedly connected to the support rod (5). One end of the inner rod extends into the interior of the outer tube.
6. A portable case for a comprehensive tester of mutual inductors according to claim 1, characterized in that, A handle (101) is fixedly provided on the right side of the box body (1), and a buckle (102) is fixedly provided on the right side of the box body (1) and the lid (2).