Three-phase relay protection comprehensive tester

Abstract

The utility model discloses a three-phase relay protection comprehensive tester, which relates to the technical field of testers and comprises a tester body and a positioning mechanism, the positioning mechanism is arranged between the tester body and a U-shaped frame and comprises a fixed disc, a plurality of movable holes are arranged on one side of the fixed disc, and the movable holes are arranged on the other side of the fixed disc. Positioning rods are movably connected to the inner walls of the multiple movable holes in a penetrating and inserting mode, a rotating disc is fixedly connected to the end of the U-shaped frame, multiple positioning holes are formed in one side of the rotating disc, and a rotating mechanism is arranged between the rotating disc and the fixed disc. Through the arrangement of the fixed disc, the rotating disc and the plurality of positioning rods, after the U-shaped frame rotates to a proper angle, the plurality of positioning rods are inserted out of the movable holes and are inserted into the corresponding positioning holes, so that the rotating disc and the fixed disc can be fixed, and the U-shaped frame stops rotating; therefore, the U-shaped frame can stably work whether being used for supporting or serving as a handle, and the use stability of the U-shaped frame is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of testers, in particular to a three-phase relay protection comprehensive tester. Background Art

[0002] The three-phase relay protection comprehensive tester is a device used for testing three-phase relay protection, which is mainly composed of a tester body and a rotatable U-shaped frame.

[0003] The U-shaped frame below the tester body can support the tester, and the U-shaped rotation below the tester body can serve as a handle to move the tester.

[0004] Currently, U-shaped frames are all rotatably mounted on the outer wall of the machine body, and most testers can only fix the U-shaped frame after it is rotated to the bottom of the tester. As a result, when the U-shaped frame acts as a handle to move the tester, the tester will shake during the movement, thereby reducing the stability of the U-shaped frame. Utility Model Content

[0005] The purpose of the utility model is to provide a three-phase relay protection comprehensive tester to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a three-phase relay protection comprehensive tester, comprising:

[0007] A tester body, wherein a U-shaped frame is provided below the tester body;

[0008] The positioning mechanism is arranged between the tester body and the U-shaped frame, and is used to fix the U-shaped frame after rotation adjustment. The positioning mechanism includes a fixed plate fixedly connected to the outer wall of the tester body, and a plurality of movable holes are opened on one side of the fixed plate. The inner walls of the plurality of movable holes are movably connected with positioning rods. The end of the U-shaped frame is fixedly connected with a rotating plate, and a plurality of positioning holes are opened on one side of the rotating plate. The outer walls of the plurality of positioning rods are movably connected with the inner walls of the plurality of positioning holes respectively, and a rotating mechanism is arranged between the rotating plate and the fixed plate.

[0009] Preferably, the rotating mechanism includes a rotating shaft fixedly connected to one side of the fixed disk, a rotating hole is opened on one side of the rotating disk, the outer wall of the rotating shaft is rotatably connected to the inner wall of the rotating hole, and a synchronization mechanism is provided between the multiple positioning rods.

[0010] Preferably, the synchronization mechanism includes a connecting disk fixedly connected to one end of multiple positioning rods, a movable cavity is opened inside the fixed disk, the outer wall of the connecting disk is slidably connected to the inner wall of the movable cavity, and an extrusion mechanism is provided on one side of the connecting disk.

[0011] Preferably, the extrusion mechanism includes a spring provided on a side of the connection disk away from the positioning rod, for providing the connection disk with a tendency to move toward the position of the positioning rod, and a limiting mechanism is provided inside the movable cavity.

[0012] Preferably, the limiting mechanism includes a fixing rod, which is fixedly connected to the inner wall of the movable cavity, a limiting hole is opened on one side of the connecting disk, the outer wall of the fixing rod is movably connected to the inner wall of the limiting hole, and an unlocking mechanism is provided on the side of the connecting disk close to the positioning rod.

[0013] Preferably, the unlocking mechanism includes a pressing block fixedly connected to the side of the connecting disk close to the positioning rod, a connecting hole is opened on one side of the rotating shaft, the outer wall of the pressing block and the inner wall of the connecting hole are movably connected, and a contact mechanism is provided between the fixed disk and the rotating disk.

[0014] Preferably, the contact mechanism includes a plurality of rolling balls arranged in contact with one side of the fixed disk, a plurality of ball grooves are opened on one side of the rotating disk, and the plurality of rolling balls are movably clamped on the inner walls of the plurality of ball grooves.

[0015] The technical effects and advantages of this utility model are:

[0016] The present invention utilizes the arrangement of a fixed disk, a rotating disk and a plurality of positioning rods. When the U-shaped frame is rotated to a suitable angle, the plurality of positioning rods are inserted out of the movable holes and into the corresponding positioning holes to fix the rotating disk and the fixed disk, thereby stopping the rotation of the U-shaped frame. The number of positioning rods is at least fifteen. The more the number of positioning rods, the smaller the minimum rotation adjustment angle of the U-shaped frame can be, so that the U-shaped frame can be fixed at more angles, so that the U-shaped frame can work stably whether it is used for support or as a handle, thereby improving the stability of the U-shaped frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 This is a front sectional structural diagram of the fixed disk of the utility model.

[0019] Figure 3 For this utility model Figure 2 Schematic diagram of the local enlarged structure at point A.

[0020] In the figure: 101, tester body; 102, U-shaped frame; 201, fixed disk; 202, rotating disk; 203, positioning hole; 204, positioning rod; 205, movable hole; 301, movable cavity; 302, connecting disk; 401, rotating hole; 402, rotating shaft; 501, spring; 601, fixed rod; 602, limiting hole; 701, connecting hole; 702, pressing block; 801, ball groove; 802, rolling ball. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] The utility model provides Figure 1-3 The three-phase relay protection integrated tester shown includes a tester body 101 and a positioning mechanism. A U-shaped frame 102 is provided below the tester body 101. The U-shaped frame 102 is rotated to the bottom of the tester body 101 to support the tester body 101, ensuring stable use of the tester body 101. The U-shaped frame 102 is rotated to the top of the tester body 101 to move the tester body 101 by lifting the U-shaped frame 102.

[0023] In a preferred embodiment, a positioning mechanism is provided between the tester body 101 and the U-shaped frame 102, and is used to fix the U-shaped frame 102 after rotation adjustment. The positioning mechanism includes a fixed disk 201 fixedly connected to the outer wall of the tester body 101, a plurality of movable holes 205 are provided on one side of the fixed disk 201, and the inner walls of the plurality of movable holes 205 are movably connected with positioning rods 204. The end of the U-shaped frame 102 is fixedly connected to a rotating disk 202, a plurality of positioning holes 203 are provided on one side of the rotating disk 202, and the outer walls of the plurality of positioning rods 204 are movably connected with the inner walls of the plurality of positioning holes 203. A rotating mechanism is provided between the rotating disk 202 and the fixed disk 201. By setting the rotating mechanism, the rotating disk 202 can rotate around the fixed disk 201, so as to rotate the U-shaped frame 102. When the U-shaped frame 102 is rotated to a suitable angle, the rotating disk 202 and the fixed disk 201 can be fixed by inserting a plurality of positioning rods 204 from the movable holes 205 and inserting them into the corresponding positioning holes 203, thereby stopping the rotation of the U-shaped frame 102. The number of positioning rods 204 is at least fifteen. The more the number of positioning rods 204 is, the smaller the minimum rotation adjustment angle of the U-shaped frame 102 can be. The U-shaped frame 102 can be fixed at more angles, so that the U-shaped frame 102 can work stably whether it is used for support or as a handle, thereby improving the stability of the U-shaped frame 102.

[0024] Among them, the rotating mechanism includes a rotating shaft 402 fixedly connected to one side of the fixed disk 201, a rotating hole 401 is opened on one side of the rotating disk 202, the outer wall of the rotating shaft 402 is rotatably connected to the inner wall of the rotating hole 401, and a synchronization mechanism is arranged between multiple positioning rods 204. By setting the rotating shaft 402 in the rotating hole 401, the rotating disk 202 can be rotated on the outer wall of the rotating shaft 402, thereby improving the convenience of rotation adjustment of the U-shaped frame 102.

[0025] Preferably, the synchronization mechanism includes a connecting disk 302 fixedly connected to one end of multiple positioning rods 204, a movable cavity 301 is opened inside the fixed disk 201, the outer wall of the connecting disk 302 is slidably connected to the inner wall of the movable cavity 301, and an extrusion mechanism is provided on one side of the connecting disk 302. Through the connection of the connecting disk 302, multiple positioning rods 204 can move synchronously, thereby improving the convenience of the positioning mechanism. The positioning rod 204 is provided with a frustum block at the end away from the connecting disk 302, which makes it more convenient for the positioning rod 204 to be inserted into the positioning hole 203, further improving the convenience of the positioning mechanism.

[0026] Among them, the extrusion mechanism includes a spring 501 arranged on the side of the connecting disk 302 away from the positioning rod 204, which is used to provide the connecting disk 302 with a tendency to move toward the position of the positioning rod 204. A limiting mechanism is arranged inside the movable cavity 301. Through the elastic action of the spring 501, the spring 501 always squeezes the connecting disk 302, so that the positioning rod 204 can be stably inserted into the positioning hole 203, ensuring the stability of the positioning mechanism.

[0027] Preferably, the limiting mechanism includes a fixing rod 601, which is fixedly connected to the inner wall of the movable cavity 301. A limiting hole 602 is opened on one side of the connecting disk 302. The outer wall of the fixing rod 601 is movably connected to the inner wall of the limiting hole 602. An unlocking mechanism is provided on the side of the connecting disk 302 close to the positioning rod 204. Through the setting of the fixing rod 601, the longitudinal deformation of the spring 501 when it is compressed can be avoided, thereby improving the stability of the spring 501 and extending the service life of the spring 501.

[0028] Furthermore, the unlocking mechanism includes a pressing block 702 fixedly connected to the side of the connecting disk 302 close to the positioning rod 204, and a connecting hole 701 is opened on one side of the rotating shaft 402. The outer wall of the pressing block 702 is movably connected to the inner wall of the connecting hole 701, and a contact mechanism is provided between the fixed disk 201 and the rotating disk 202. By pressing the pressing block 702 in the connecting hole 701, the connecting disk 302 can be moved in the movable cavity 301, so that multiple positioning rods 204 move synchronously until the positioning rod 204 is separated from the positioning hole 203, and the positioning of the contact positioning mechanism can be achieved. At this time, the U-shaped frame 102 can be rotated for adjustment.

[0029] Furthermore, the contact mechanism includes a plurality of rolling balls 802 that are fitted to one side of the fixed disk 201, and a plurality of ball grooves 801 are opened on one side of the rotating disk 202. The plurality of rolling balls 802 are movably clamped on the inner walls of the plurality of ball grooves 801. When the U-shaped frame 102 rotates, it will drive the rotating disk 202 to rotate, so that the ball groove 801 can roll along the outer wall of the fixed disk 201, thereby reducing the friction force when the rotating disk 202 rotates and improving the smoothness of the rotation of the tester body 101.

[0030] Finally, it should be noted that the above is only 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 can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A three-phase relay protection comprehensive tester, characterized in that: include: A tester body (101), wherein a U-shaped frame (102) is provided below the tester body (101); A positioning mechanism is provided between the tester body (101) and the U-shaped frame (102) and is used to fix the U-shaped frame (102) after rotation adjustment. The positioning mechanism comprises a fixed disk (201) fixedly connected to the outer wall of the tester body (101), a plurality of movable holes (205) are provided on one side of the fixed disk (201), and the inner walls of the plurality of movable holes (205) are movably connected with positioning rods (204). The end of the U-shaped frame (102) is fixedly connected to a rotating disk (202), a plurality of positioning holes (203) are provided on one side of the rotating disk (202), and the outer walls of the plurality of positioning rods (204) are movably connected with the inner walls of the plurality of positioning holes (203). A rotating mechanism is provided between the rotating disk (202) and the fixed disk (201).

2. A three-phase relay protection comprehensive tester according to claim 1, characterized in that: The rotating mechanism comprises a rotating shaft (402) fixedly connected to one side of a fixed disk (201); a rotating hole (401) is provided on one side of the rotating disk (202); the outer wall of the rotating shaft (402) is rotatably connected to the inner wall of the rotating hole (401); and a synchronization mechanism is provided between the plurality of positioning rods (204).

3. A three-phase relay protection comprehensive tester according to claim 2, characterized in that: The synchronization mechanism comprises a connecting disk (302) fixedly connected to one end of a plurality of positioning rods (204); a movable cavity (301) is provided inside the fixed disk (201); an outer wall of the connecting disk (302) is slidably connected to an inner wall of the movable cavity (301); and a squeezing mechanism is provided on one side of the connecting disk (302).

4. A three-phase relay protection comprehensive tester according to claim 3, characterized in that: The squeezing mechanism includes a spring (501) arranged on a side of the connecting disk (302) away from the positioning rod (204), which is used to provide the connecting disk (302) with a tendency to move toward the position of the positioning rod (204). A limiting mechanism is provided inside the movable cavity (301).

5. A three-phase relay protection comprehensive tester according to claim 4, characterized in that: The limiting mechanism includes a fixing rod (601), the fixing rod (601) is fixedly connected to the inner wall of the movable cavity (301), a limiting hole (602) is provided on one side of the connecting disk (302), the outer wall of the fixing rod (601) and the inner wall of the limiting hole (602) are movably connected, and an unlocking mechanism is provided on the side of the connecting disk (302) close to the positioning rod (204).

6. A three-phase relay protection comprehensive tester according to claim 5, characterized in that: The unlocking mechanism comprises a pressing block (702) fixedly connected to a side of the connecting disk (302) close to the positioning rod (204); a connecting hole (701) is provided on one side of the rotating shaft (402); the outer wall of the pressing block (702) is movably connected to the inner wall of the connecting hole (701); and a contact mechanism is provided between the fixed disk (201) and the rotating disk (202).

7. A three-phase relay protection comprehensive tester according to claim 6, characterized in that: The contact mechanism comprises a plurality of rolling balls (802) arranged in contact with one side of the fixed disk (201); a plurality of ball grooves (801) are provided on one side of the rotating disk (202); and the plurality of rolling balls (802) are movably mounted on the inner walls of the plurality of ball grooves (801).

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