A convenient relay protection connection

Abstract

The present invention discloses a convenient relay protection connecting piece, comprising an upper fixed connecting piece, an upper limit piece group, a lower fixed connecting piece, a lower limit piece group, a movable connecting piece, a knob, a connecting rod, and an elastic part; the upper limit piece group is installed on the inner side of the second end of the upper fixed connecting piece; the first end of the upper fixed connecting piece and the first end of the lower fixed connecting piece are both connected to the screen cabinet panel; the present invention adjusts the position of the movable connecting piece by rotating the knob, and through the cooperation of the knob, the connecting rod, and the elastic part, when the knob is pressed downward, the movable connecting piece can be pushed into the opening between the upper fixed connecting piece and the lower fixed connecting piece, and then the movable connecting piece can be rotated and then released to respectively insert the two ends of the fixed connecting piece into the upper limit piece group and the lower limit piece group. The operation of the present application only requires a slight rotation and pressing of the knob to be achieved, avoiding the tedious and time-consuming process of loosening and tightening the nut in the prior art; it also avoids poor contact caused by loosening that may occur when the nut is fixed.

Description

Technical Field

[0001] The present invention relates to the technical field of protection link operation of protection devices, and in particular to a portable relay protection link. Background Art

[0002] The relay protection connector is the bridge and link between the relay protection device and the external wiring. It is related to whether the relay protection function and action output can function normally. It is one of the important guarantees for the safe and stable operation of the power system. The protection connector commonly used in the relay protection device of the existing technology (see attached Figure 1 , Attachment Figure 2 ) Two sections of metal are partially exposed. The relay protection device of the prior art includes a rotating column 11, a mounting column 12, a tensioning nut 121, a mounting seat 122, a connecting piece 13, and a mounting bayonet 131. The first end of the connecting piece 13 can be rotatably mounted on the rotating column 11, and the mounting bayonet 131 is set on the second end of the connecting piece 13. When connecting, the second end of the connecting piece 13 is inserted between the tensioning nut 121 and the mounting seat 122 through the mounting bayonet 131, and then the connection is completed by tightening the tensioning nut 121. This device has the risk of accidentally touching adjacent connecting pieces or causing electric shock when performing operations such as inserting and withdrawing the protection connecting piece, and the operation of inserting and withdrawing the connecting piece 13 through the tensioning nut 121 is relatively cumbersome and time-consuming. In addition, the loosening of the tensioning nut during the operation of the protection device may cause poor contact of the connecting piece, affecting the operation of the protection device.

[0003] Therefore, it is necessary to develop a convenient relay protection connector to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to design a convenient relay protection connector in order to solve the above problems.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0006] A convenient relay protection connection piece, comprising:

[0007] Upper fixed connecting piece;

[0008] Upper limit piece assembly; the upper limit piece assembly is installed on the inner side of the second end of the upper fixed connecting piece;

[0009] Lower fixed connecting piece; the upper fixed connecting piece and the lower fixed connecting piece are both formed in an L shape, and the first end of the upper fixed connecting piece and the first end of the lower fixed connecting piece are both connected to the screen cabinet panel; an opening for the movable connecting piece to be pushed in laterally is formed between the second end of the upper fixed connecting piece and the second end of the lower fixed connecting piece;

[0010] Lower limit piece assembly; the lower limit piece assembly is installed on the inner side of the second end of the lower fixed connecting piece;

[0011] An active connecting piece; the middle portion of the inner surface of the active connecting piece is connected to the first end of the connecting rod;

[0012] Knob; the knob is fixed on the middle part of the outer side of the movable connecting piece;

[0013] Connecting rod;

[0014] The second end of the connecting rod is connected to the screen cabinet panel through the elastic member;

[0015] When the connecting piece is put in, the movable connecting piece is rotated horizontally and pushed in from the opening between the upper fixed connecting piece and the lower fixed connecting piece. After further rotation, under the action of the rebound force of the elastic member, the first end of the movable connecting piece is clamped into the upper limit piece group, and the second end of the movable connecting piece is clamped into the lower limit piece group.

[0016] The beneficial effects of the present invention are:

[0017] The position of the movable link is adjusted by rotating the knob. Through the cooperation of the knob, connecting rod and elastic part, when the knob is pressed downward, the movable link can be pushed into the opening between the upper fixed link and the lower fixed link. Then the movable link is rotated and the hands are released to respectively insert the two ends of the fixed link into the upper limit plate group and the lower limit plate group. The operation of this application only requires a slight rotation and pressing of the knob to be achieved, avoiding the tedious and time-consuming method of loosening and tightening the nut in the prior art; it also avoids poor contact caused by loosening of the nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the existing technical structure Figure 1 ;

[0019] Figure 2 Schematic diagram of the existing technical structure Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the structure of the unconnected state of the movable connection in this application;

[0021] Figure 4 This is a schematic diagram of the connection state structure of the active connecting pieces in this application;

[0022] Figure 5 Schematic diagram of the structure of the connecting rod in this application;

[0023] Figure 6 This is a schematic diagram of the connection structure of the upper fixed connecting piece, the lower fixed connecting piece, and the movable connecting piece in this application;

[0024] Figure 7 This is a schematic diagram of the structure of the knob in this application;

[0025] Numbers in the figure: 11, rotating column; 12, mounting column; 121, tightening nut; 122, mounting seat; 13, connecting piece; 131, mounting bayonet; 21, screen cabinet panel; 22, upper fixed connecting piece; 23, lower fixed connecting piece; 24, upper limit piece group; 25, lower limit piece group; 26, movable connecting piece; 27, knob; 271, indicator line; 28, connecting rod; 281, first threaded section; 282, second threaded section; 283, limit block; 284, first limit nut; 285, second limit nut; 29, spring; 210, insulating sleeve. DETAILED DESCRIPTION

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the embodiments of the present invention. It should be understood that the described embodiments are only a portion of the embodiments of the present invention, not all of them. Generally, the components of the embodiments of the present invention described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0029] In the description of the present invention, it should be understood that the terms "upper", "lower", "inside", "outside", "left", "right", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. These are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] Furthermore, the terms “first”, “second”, etc. are merely used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0031] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, terms such as "disposed" and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can also mean internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0032] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0033] like Figure 3 As shown, a convenient relay protection connection piece includes:

[0034] Upper fixed connecting piece 22;

[0035] Upper limit piece group 24; The upper limit piece group 24 is installed on the inner side of the second end of the upper fixed connecting piece 22;

[0036] The lower fixed connecting piece 23; the upper fixed connecting piece 22 and the lower fixed connecting piece 23 are both formed in an L shape, and the first end of the upper fixed connecting piece 22 and the first end of the lower fixed connecting piece 23 are both connected to the screen cabinet panel 21; an opening for the movable connecting piece 26 to be pushed in laterally is formed between the second end of the upper fixed connecting piece 22 and the second end of the lower fixed connecting piece 23;

[0037] Lower limit piece group 25; The lower limit piece group 25 is installed on the inner side of the second end of the lower fixed connecting piece 23;

[0038] The movable connecting piece 26; the middle portion of the inner surface of the movable connecting piece 26 is connected to the first end of the connecting rod 28;

[0039] Knob 27; Knob 27 is fixed to the middle portion of the outer side of the movable connecting piece 26;

[0040] Connecting rod 28;

[0041] The second end of the connecting rod 28 is connected to the screen cabinet panel 21 through an elastic member;

[0042] When the connecting piece is put in, the movable connecting piece 26 is rotated horizontally and pushed in from the opening between the upper fixed connecting piece 22 and the lower fixed connecting piece 23. After further rotation, under the action of the rebound force of the elastic member, the first end of the movable connecting piece 26 is clamped into the upper limit piece group 24, and the second end of the movable connecting piece 26 is clamped into the lower limit piece group 25.

[0043] like Figure 3 As shown, the elastic member is a spring 29.

[0044] like Figure 5As shown, a second threaded section 282 is provided on the connecting rod 28 near the second end, and a second limiting nut 285 is threadedly connected to the second threaded section 282. A limiting block 283 is provided at the second end of the connecting rod 28, and a first through hole is provided on the screen cabinet panel 21. The diameter of the limiting block 283 is larger than the diameter of the first through hole. The second end of the connecting rod 28 is provided through the first through hole, and the limiting block 283 is placed on the inner surface of the screen cabinet panel 21. The spring 29 is placed between the outside of the screen cabinet panel 21 and one end surface of the second limiting nut 285.

[0045] like Figure 5 As shown, a first threaded segment 281 is provided on the first end of the connecting rod 28, a second through hole is provided at the center of the movable connecting piece 26, a screw hole is provided at the center of the knob 27, and a first limiting nut 284 is threadedly connected to the first threaded segment 281. The first end of the connecting rod 28 passes through the second through hole and is screwed into the screw hole. The movable connecting piece 26 is clamped and installed between the knob 27 and the first limiting nut 284.

[0046] like Figure 6 As shown, the upper limit piece group 24 and the lower limit piece group 25 each include two limit pieces, and a slot is formed between the two limit pieces. When the connecting pieces are put in, the two ends of the movable connecting piece 26 are respectively inserted into the two slots.

[0047] like Figure 7 As shown, an indicator line 271 is provided on the surface of the knob 27 .

[0048] like Figure 3 As shown, the first end of the upper fixing connecting piece 22 and the first end of the lower fixing connecting piece 23 are both connected to the screen cabinet panel 21 through the insulating sleeve 210.

[0049] It should be noted that the parts of the upper fixed connecting piece 22 and the lower fixed connecting piece 23 that are in contact with the movable connecting piece 26 are exposed metal parts, and the rest of the upper fixed connecting piece 22, the lower fixed connecting piece 23 and the movable connecting piece 26 are all wrapped with insulating sleeves 210 or insulating sleeves.

[0050] Functional realization of the convenient relay protection connection:

[0051] Connecting piece insertion operation: When it is necessary to insert the connecting piece, adjust the direction of the knob 27 (for example, when it is in the initial position, the indicator line 271 on the surface of the knob 27 is vertical), and the movable connecting piece 26 changes from vertical to horizontal. The movable connecting piece 26 is aligned with the opening between the second end of the upper fixed connecting piece 22 and the second end of the lower fixed connecting piece 23. At this time, press the knob 27 inward, the spring 29 is compressed, and after the movable connecting piece 26 passes the upper limit piece group 24 and the lower limit piece group 25 inward, the movable connecting piece 26 is further turned by the knob 27. From horizontal to vertical, slowly release the pressure on the knob 27, and the movable connecting piece 26 will rebound under the action of the spring 29 until the upper end of the movable connecting piece 26 is stuck in the slot of the upper limit piece group 24, and the lower end of the movable connecting piece 26 is stuck in the slot of the lower limit piece group 25. At this time, the spring 29 will give the movable connecting piece 26 a partial outward force, and the elastic potential energy of the spring 29 will ensure that the movable connecting piece 26 is in reliable contact with the metal parts of the upper fixed connecting piece 22 and the lower fixed connecting piece 23, thus realizing the connecting piece input function. Figure 5 Shown is a schematic diagram of the final connected input state.

[0052] To exit the continuous piece: just reverse the above steps. Figure 4 Shown is a schematic diagram of the final connected exit state.

[0053] Detailed introduction of each component:

[0054] The cabinet panel 21 is made of metal and serves as the base for the fixed connecting piece and the movable connecting piece 26. Both the front and back sides are covered with an insulating coating and are non-conductive under normal circumstances. An insulating sleeve 210 is installed on the first through hole.

[0055] Insulating sleeve 210: Made of plastic, used to insulate the contact portion between the upper fixing connecting piece 22, the lower fixing connecting piece 23, the connecting rod 28 and the cabinet panel 21;

[0056] Upper fixed connecting piece 22 and lower fixed connecting piece 23: both are made of metal. The rear end of the cabinet panel 21 is electrically connected to the protection circuit line. The front end of the cabinet panel 21 is in reliable contact with the movable connecting piece 26 to conduct the protection circuit.

[0057] Upper limit piece group 24, lower limit piece group 25: the width of the slot is greater than the width of the movable connecting piece 26;

[0058] The movable connecting piece 26 is made of metal, and its surface is covered with an insulating sleeve 210 or an insulating sleeve except the contact area with the upper fixed connecting piece 22 and the lower fixed connecting piece 23;

[0059] Knob 27: Made of plastic, with movable connecting piece 26 at the operation point, and the cylindrical shell surface adopts a frosted structure to increase friction;

[0060] Screw: can be made of metal or plastic, and is the transmission rod of the movable connecting piece 26;

[0061] Spring 29: Made of metal, its deformation and direction change synchronously with the magnitude and direction of the force applied to knob 27. When the link is engaged, spring 29's compression increases, and its own elastic potential energy drives connecting rod 28 to securely press movable link 26 against the contact surfaces of the upper and lower fixed links 23. When the link is withdrawn, spring 29's compression decreases, and connecting rod 28 ejects movable link 26 out of the upper and lower fixed links 23, achieving reliable isolation.

[0062] The technical solution of the present invention is not limited to the above-mentioned specific embodiments. Any technical variations made according to the technical solution of the present invention fall within the protection scope of the present invention.

Claims

1. A portable relay protection connector, characterized in that: include: Upper fixed connecting piece; Lower fixed connecting piece; the upper fixed connecting piece and the lower fixed connecting piece are both formed in an L shape, and the first end of the upper fixed connecting piece and the first end of the lower fixed connecting piece are both connected to the screen cabinet panel; an opening for the movable connecting piece to be pushed in laterally is formed between the second end of the upper fixed connecting piece and the second end of the lower fixed connecting piece; Upper limit piece assembly; the upper limit piece assembly is installed on the inner side of the second end of the upper fixed connecting piece; Lower limit piece assembly; the lower limit piece assembly is installed on the inner side of the second end of the lower fixed connecting piece; Connecting rod; An active connecting piece; the middle portion of the inner surface of the active connecting piece is connected to the first end of the connecting rod; Knob; the knob is fixed on the middle part of the outer side of the movable connecting piece; Elastic member; the second end of the connecting rod is connected to the screen cabinet panel through the elastic member; the upper limit piece group and the lower limit piece group each include two limit pieces, the two limit pieces of the upper limit piece group are perpendicular to the inner side of the upper fixed connecting piece and are arranged parallel to each other; the two limit pieces of the lower limit piece group are perpendicular to the inner side of the lower fixed connecting piece and are arranged parallel to each other; the two limit pieces of the upper limit piece group form a slot with the inner side of the upper fixed connecting piece, and the two limit pieces of the lower limit piece group form a slot with the inner side of the lower fixed connecting piece; When the relay protection link is put into operation, the movable link is rotated horizontally and pushed in from the opening between the upper fixed link and the lower fixed link. After further rotation, under the action of the rebound force of the elastic member, the two ends of the movable link are respectively snapped into the two slots in the direction away from the connecting rod.

2. A portable relay protection connector according to claim 1, characterized in that: The elastic member is a spring.

3. A portable relay protection connector according to claim 2, characterized in that: A second threaded section is provided on the connecting rod near the second end, and the second limiting nut is threadedly connected to the second threaded section. A limiting block is provided on the second end of the connecting rod, and a first through hole is provided on the screen cabinet panel. The diameter of the limiting block is larger than the diameter of the first through hole. The second end of the connecting rod is provided through the first through hole, and the limiting block is placed on the inner surface of the screen cabinet panel. The spring is placed between the outside of the screen cabinet panel and one end face of the second limiting nut.

4. A portable relay protection connector according to claim 2, characterized in that: A first threaded section is provided on the first end of the connecting rod, a second through hole is provided at the center of the movable connecting piece, a screw hole is provided at the center of the knob, a first limiting nut is threadedly connected to the first threaded section, the first end of the connecting rod passes through the second through hole and is screwed into the screw hole, and the movable connecting piece is clamped and installed between the knob and the first limiting nut.

5. The portable relay protection connector according to claim 1, characterized in that: An indicator line is provided on the surface of the knob.

6. The portable relay protection connector according to claim 1, characterized in that: The first end of the upper fixed connecting piece and the first end of the lower fixed connecting piece are both connected to the screen cabinet panel through the insulating sleeve.

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