A relay protection test line
By designing a reinforcement mechanism on the test line, utilizing the rotational symmetry of the push head and semi-cylinder, and the tension spring, the problem of unstable connection between the test line and the test object was solved, achieving stable connection and rapid separation, thus improving testing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI YULIN ENERGY GRP HENGSHAN COAL & ELECTRICITY
- Filing Date
- 2025-07-28
- Publication Date
- 2026-06-26
AI Technical Summary
The existing test leads have poor connection stability with the test object, and are prone to loosening or falling off, affecting the test results and efficiency.
A relay protection test lead was designed, employing a reinforcement mechanism including first and second mounting shells. Through the rotational symmetry of the push head and semi-cylinder, combined with a tension spring and operating rod, a stable connection and rapid separation of the test lead from the test hole can be achieved.
It improves the connection stability and efficiency between the test leads and test holes, ensuring test results, while also improving the efficiency of quick connection and disconnection of the test leads.
Smart Images
Figure CN224416924U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of relay protection technology, and in particular to a relay protection test line. Background Technology
[0002] With the continuous development of electrical equipment, the requirements for equipment testing conditions are becoming increasingly stringent, and the number of tests is also increasing. For example, when performing protection verification and AC withstand voltage tests, multiple current and voltage test leads are often required to meet the testing requirements. Relay protection is an anti-accident automation measure used to study power system faults and abnormal operating conditions that endanger safe operation, in order to explore countermeasures.
[0003] The existing test leads have poor stability after being connected to the test object. During testing, the test leads are prone to loosening or falling off, which affects the test results. In addition, some connecting leads cannot be quickly connected to the test object, thus affecting the test efficiency. Utility Model Content
[0004] Therefore, it is necessary to provide a relay protection test lead to address the problems of poor connection stability between the test lead and the object under test, easy disconnection, and inability to achieve rapid connection when connecting the test lead to the object under test.
[0005] A relay protection test lead includes: a test lead;
[0006] The reinforcement mechanism includes a first mounting shell and a second mounting shell. Each of the first and second mounting shells has a push head on its corresponding surface. Each of the two sets of push heads has a semi-cylinder rotatably mounted inside it, and each of the two sets of semi-cylinders has an operating structure on its side. The semi-cylinder, push head and operating structure inside the first and second mounting shells are all arranged in rotational symmetry.
[0007] The device under test has a test hole on the side of the device under test near the test line.
[0008] In one embodiment, the operating structure includes an operating lever and a tension spring. The operating lever is disposed on the outer arc surface of the semi-cylinder, one end of the tension spring is fixedly connected to the corresponding operating lever, and the other end of the tension spring is fixedly connected to the corresponding first mounting shell and second mounting shell.
[0009] In one embodiment, both the first mounting shell and the second mounting shell have an outer moving groove and an inner moving groove corresponding to the operating lever on their sides, and the outer moving groove and the corresponding inner moving groove are connected.
[0010] In one embodiment, the outer arc surface of the semi-cylinder is provided with a limiting post, and the four sets of semi-cylinders are rotatably disposed inside the corresponding first mounting shell and second mounting shell through the limiting post. One end of the limiting post is provided with a locking plate for limiting the semi-cylinder.
[0011] In one embodiment, one end of the push head is configured as an arc shape, the push head on the side of the first mounting shell is inserted into the interior of the second mounting shell, and the push head on the side of the second mounting shell is inserted into the interior of the first mounting shell.
[0012] In one embodiment, both the first mounting shell and the second mounting shell have connecting grooves inside, and the semi-cylinders inside the first mounting shell and the second mounting shell are rotatably disposed between the two sets of push heads.
[0013] In one embodiment, a connecting ring is fixedly provided on the outer arc surface of the test line, and two sets of the first mounting shells are symmetrically arranged on the outer arc surface of the connecting ring through connecting posts.
[0014] In one embodiment, the two sets of second mounting shells are connected by a connecting frame, and the two sets of second mounting shells are set on the side of the device under test near the test line by a suction cup, and the two sets of second mounting shells are symmetrically arranged on both sides of the test hole.
[0015] Beneficial effects
[0016] 1. The above-mentioned test lead uses a first mounting shell on both sides of the test lead. A second mounting shell, corresponding to the first mounting shell, is then attached to the side of the device under test using a suction cup. The first mounting shell is then inserted into the corresponding second mounting shell. At this point, a push head rotates the semi-cylinder, causing the semi-cylinders inside the first and second mounting shells to contact and form a complete cylinder. The two sets of semi-cylinders then rotate under the action of a tension spring, creating a strong constraint force. Simultaneously, the test lead is inserted into the test hole, ensuring the connection stability between the test lead and the test hole, improving the connection efficiency, and guaranteeing the test lead's effectiveness.
[0017] 2. When connecting the test lead to the test hole, simply connect the test lead and the test hole. At this time, the first and second mounting shells will automatically lock, thus quickly connecting the test lead and the test hole. When it is necessary to separate the test lead and the test hole, simply operate the operating lever to rotate the semi-cylinder to a horizontal position. This will cause the first and second mounting shells to separate, thereby quickly separating the test lead and the test hole, thus improving the testing efficiency of the test lead. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram showing the overall structure of this utility model after disassembly.
[0021] Figure 3 This is a cross-sectional view of the mounting shell structure of this utility model;
[0022] Figure 4 This is a cross-sectional view of the reinforcement mechanism of this utility model;
[0023] Figure 5 For the present utility model Figure 2 Left view.
[0024] Reference numerals: 100, test line; 200, reinforcement mechanism; 300, device under test; 201, first mounting shell; 202, second mounting shell; 203, semi-cylinder; 204, push head; 205, operating lever; 206, connecting ring; 207, tension spring; 208, outer moving groove; 209, inner moving groove; 210, limiting post; 211, locking plate; 212, connecting post; 301, test hole. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0026] The following is combined with Figures 1-5 This invention describes the relay protection test lead.
[0027] In one embodiment, a relay protection test lead includes: a test lead 100; and a reinforcement mechanism 200, which includes a first mounting shell 201 and a second mounting shell 202. Each of the first and second mounting shells 201 and 202 has a push head 204 on its corresponding surface. A semi-cylinder 203 is rotatably disposed inside each of the two sets of push heads 204, and an operating structure is provided on the side of each of the two sets of semi-cylinders 203. The semi-cylinders 203, push heads 204, and operating structures inside the first and second mounting shells 201 and 202 are arranged in a rotationally symmetrical manner. The device under test 300 can be a protection device in a power system, such as a relay, protection panel, or measurement and control device, or it can be a transformer. The test device 300, such as the electrical equipment body including the circuit breaker, transformer, etc., has a test hole 301 on the side of the device under test near the test lead 100. When it is necessary to connect the test lead 100 and the test hole 301, simply insert the test lead 100 into the test hole 301. Then, the semi-cylinder 203 and the push head 204 inside the first mounting shell 201 enter the second mounting shell 202, and the semi-cylinder 203 and the push head 204 inside the second mounting shell 202 enter the first mounting shell 201. The two sets of semi-cylinders 203 inside the first mounting shell 201 and the second mounting shell 202 form a complete cylinder, thereby ensuring the stability of the connection between the test lead 100 and the test hole 301.
[0028] like Figure 2 , Figure 3 and Figure 4 As shown, the operating structure includes an operating lever 205 and a tension spring 207. The operating lever 205 is disposed on the outer arc surface of the semi-cylinder 203. One end of the tension spring 207 is fixedly connected to the corresponding operating lever 205, and the other end of the tension spring 207 is fixedly connected to the corresponding first mounting shell 201 and second mounting shell 202. The sides of the first mounting shell 201 and the second mounting shell 202 are provided with an outer moving groove 208 and an inner moving groove 209 corresponding to the operating lever 205. The outer moving groove 208 and the corresponding inner moving groove 209 are connected. The outer moving groove 208 and the inner moving groove 209 are provided to ensure the smooth rotation of the operating lever 205 and to ensure that the semi-cylinder 203 can be rotated.
[0029] In this embodiment, after the first mounting shell 201 and the second mounting shell 202 are connected, the two sets of semi-cylinders 203 rotate under the action of the operating rod 205 and the tension spring 207, and the two sets of semi-cylinders 203 still form a complete cylinder after rotation. At this time, the semi-cylinders 203 inside the first mounting shell 201 are blocked by the push head 204 of the second mounting shell 202, and the semi-cylinders 203 inside the second mounting shell 202 are blocked by the push head 204 of the first mounting shell 201. Thus, the two sets of semi-cylinders 203 form a strong constraint force inside the first mounting shell 201 and the second mounting shell 202, from... The strength of the connection between the first mounting shell 201 and the second mounting shell 202 is ensured, thereby guaranteeing the stability of the connection between the test lead 100 and the test hole 301. This also improves the connection strength between the test lead 100 and the test hole 301, ensuring the effectiveness of the test lead 100 during testing. When it is necessary to separate the test lead 100 from the test hole 301, simply operate the operating lever 205 to rotate the semi-cylinder 203 to a horizontal position. This will cause the first mounting shell 201 and the second mounting shell 202 to separate, thus quickly separating the test lead 100 from the test hole 301 and improving the testing efficiency of the test lead 100.
[0030] like Figure 4 and Figure 5 As shown, a limiting post 210 is provided on the outer arc surface of the semi-cylinder 203. Four sets of semi-cylinders 203 are rotatably mounted inside the corresponding first mounting shell 201 and second mounting shell 202 via the limiting post 210. One end of the limiting post 210 is provided with a retaining plate 211 to limit the semi-cylinder 203. The first mounting shell 201 and the second mounting shell 202 are both provided with grooves corresponding to the limiting post 210 to ensure that the semi-cylinder 203 can rotate normally. The diameter of the retaining plate 211 is twice the diameter of the limiting post 210, and the retaining plate 211 is located in the gap inside the first mounting shell 201 and the second mounting shell 202. Thus, the retaining plate 211 limits the limiting post 210, thereby ensuring that the semi-cylinder 203 can rotate while preventing the semi-cylinder 203 from detaching from the first mounting shell 201 and the second mounting shell 202.
[0031] like Figure 2 , Figure 3 and Figure 4As shown, one end of the push head 204 is set in an arc shape. The push head 204 on the side of the first mounting shell 201 is inserted into the interior of the second mounting shell 202, and the push head 204 on the side of the second mounting shell 202 is inserted into the interior of the first mounting shell 201. Both the first mounting shell 201 and the second mounting shell 202 are provided with connecting grooves. The connecting grooves ensure that the push head 204 on the side of the first mounting shell 201 can be inserted into the interior of the second mounting shell 202, and the push head 204 on the side of the second mounting shell 202 can be inserted into the interior of the first mounting shell 201. The semi-cylinder 203 inside the first mounting shell 201 and the second mounting shell 202 is rotatably disposed between the two sets of push heads 204.
[0032] In this embodiment, when the first mounting shell 201 and the second mounting shell 202 are connected, the arc end of the push head 204 on the side of the first mounting shell 201 will squeeze the semi-cylinder 203 inside the second mounting shell 202, causing the semi-cylinder 203 inside the second mounting shell 202 to rotate to a horizontal state. Similarly, the semi-cylinder 203 inside the first mounting shell 201 will also rotate to a horizontal state, thereby ensuring that the first mounting shell 201 and the second mounting shell 202 can be completely connected without other operations, thus ensuring the stability and strength of the connection between the test line 100 and the test hole 301.
[0033] like Figure 1 and Figure 2 As shown, a connecting ring 206 is fixedly installed on the outer arc surface of the test line 100. Two sets of first mounting shells 201 are symmetrically arranged on the outer arc surface of the connecting ring 206 via connecting posts 212. Two sets of second mounting shells 202 are connected by a connecting frame. Each set of second mounting shells 202 has a suction cup on the side away from the first mounting shell 201. The two sets of second mounting shells 202 are set on the side of the device under test 300 near the test line 100 via the suction cups, and the two sets of second mounting shells 202 are symmetrically arranged on both sides of the test hole 301. The two sets of first mounting shells 201 are connected to the test line 100 via the connecting ring 206 and connecting posts 212. The second mounting shells 202 are adsorbed onto the side of the device under test 300. The first mounting shells 201 and the second mounting shells 202 are rotationally symmetrical, thereby ensuring the stability of the connection between the test line 100 and the test hole 301 after the first mounting shells 201 and the second mounting shells 202 are connected.
[0034] Working principle: First, the second mounting shell 202 is attached to the side of the device under test 300 that requires frequent testing using a suction cup. When the test lead 100 is connected to the test hole 301, simply insert the test lead 100 into the test hole 301. At this time, the first mounting shell 201 and the second mounting shell 202 are connected simultaneously. Then, the push head 204 squeezes the semi-cylinder 203, making the semi-cylinders 203 inside the first mounting shell 201 and the second mounting shell 202 contact each other horizontally. Then, the two sets of semi-cylinders 203 are connected by the operating rod 205 and the tensioning... The test wire 100 rotates under the action of the spring 207. At this time, the two sets of semi-cylinders 203 that form a complete cylindrical shape form a strong constraint force inside the first mounting shell 201 and the second mounting shell 202, thereby quickly connecting the test wire 100 and the test hole 301. When it is necessary to separate the test wire 100 and the test hole 301, simply operate the operating rod 205 to drive the semi-cylinders 203 to rotate to a horizontal state. At this time, the first mounting shell 201 and the second mounting shell 202 can be separated, thereby quickly separating the test wire 100 and the test hole 301.
[0035] It should be noted that the test line 100 and the device under test 300 mentioned above are all devices with relatively mature existing technologies. The specific models can be selected according to actual needs, and will not be elaborated here.
[0036] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A relay protection test line, characterized in that, include: Test line (100); The reinforcement mechanism (200) includes a first mounting shell (201) and a second mounting shell (202). The first mounting shell (201) and the second mounting shell (202) are provided with push heads (204) on their corresponding surfaces. The push heads (204) are rotatably provided with semi-cylinders (203) inside each set of push heads (204). The semi-cylinders (203), push heads (204) and operating structures inside the first mounting shell (201) and the second mounting shell (202) are all arranged in a rotationally symmetrical manner. The device under test (300) has a test hole (301) on the side of the device under test (300) near the test line (100).
2. The relay protection test lead according to claim 1, characterized in that, The operating structure includes an operating lever (205) and a tension spring (207). The operating lever (205) is disposed on the outer arc surface of the semi-cylinder (203). One end of the tension spring (207) is fixedly connected to the corresponding operating lever (205), and the other end of the tension spring (207) is fixedly connected to the corresponding first mounting shell (201) and second mounting shell (202).
3. The relay protection test lead according to claim 2, characterized in that, The first mounting shell (201) and the second mounting shell (202) are each provided with an outer moving groove (208) and an inner moving groove (209) corresponding to the operating lever (205) on their sides, and the outer moving groove (208) and the corresponding inner moving groove (209) are connected.
4. The relay protection test lead according to claim 1, characterized in that, The outer arc surface of the semi-cylinder (203) is provided with a limiting post (210). The four sets of semi-cylinders (203) are rotatably set inside the corresponding first mounting shell (201) and second mounting shell (202) through the limiting post (210). One end of the limiting post (210) is provided with a retaining plate (211) for limiting the semi-cylinder (203).
5. The relay protection test lead according to claim 1, characterized in that, One end of the push head (204) is set in an arc shape. The push head (204) on the side of the first mounting shell (201) is inserted into the interior of the second mounting shell (202), and the push head (204) on the side of the second mounting shell (202) is inserted into the interior of the first mounting shell (201).
6. The relay protection test lead according to claim 1, characterized in that, The first mounting shell (201) and the second mounting shell (202) are both provided with connecting grooves. The semi-cylinder (203) inside the first mounting shell (201) and the second mounting shell (202) is rotatably disposed between the two sets of push heads (204).
7. The relay protection test lead according to claim 1, characterized in that, The outer arc surface of the test line (100) is fixedly provided with a connecting ring (206), and the two sets of the first mounting shells (201) are symmetrically arranged on the outer arc surface of the connecting ring (206) through the connecting post (212).
8. The relay protection test lead according to claim 1, characterized in that, The two sets of second mounting shells (202) are connected by a connecting bracket. The two sets of second mounting shells (202) are set on the side of the device under test (300) near the test line (100) by a suction cup, and the two sets of second mounting shells (202) are symmetrically arranged on both sides of the test hole (301).