A ground terminal that is easy to replace

Abstract

The utility model belongs to the technical field of electric power engineering equipment, specifically discloses a ground terminal convenient to replace, including shell and detachable installation in the insulating seat of shell, and the insulating seat forms detachable connection through the elastic clamping structure with shell, the elastic clamping structure includes the elastic clamping piece of being located on the insulating seat and the clamping cooperation portion of being located in the inner wall of shell, be equipped with the operating portion of extending to the outside of shell on the insulating seat, the radial length of two operating portions exceeds the outer wall surface of shell, and the operating portion is used for exerting external force to make the elastic clamping piece deformation to realize the disassembly of insulating seat, the utility model discloses the setting through the elastic clamping structure, when needing to replace the insulating seat, the operating personnel pinch the operating portion extending to the outside of shell with the finger, and the operating portion is lifted upward, and the external force is passed through the insulating seat and is delivered to the elastic clamping piece, makes it produce lateral deformation and separate the clamping cooperation portion, at this moment, can directly extract the insulating seat from the shell, realizes quick replacement, and is convenient and fast.

Description

Technical Field

[0001] This application relates to the field of power engineering equipment technology, and more specifically, to a grounding terminal that is easy to replace. Background Technology

[0002] In the field of power engineering, power cabinets, as core equipment for circuit distribution, control, and protection, are widely used in substations, industrial plants, high-rise buildings, and other scenarios. To ensure the safe operation of the circuit system and the operational safety of personnel, power cabinets must be reliably grounded through grounding terminals.

[0003] The patent with publication number CN213151056U discloses a combined grounding terminal structure for power engineering. This patent uses the interlocking of the side fastening blocks of the grounding terminals to connect the grounding terminals together, thereby improving the stability of the installation between the grounding terminals and ensuring that the number of grounding terminals meets people's needs.

[0004] Although the patent enables the combination and connection of grounding terminals, it increases the number of grounding terminals by sliding them laterally, making it inconvenient to replace a single damaged grounding terminal. Utility Model Content

[0005] To address the aforementioned issues, this application provides a grounding terminal that is easy to replace.

[0006] The grounding terminal that is easy to replace provided in this application adopts the following technical solution:

[0007] A replaceable grounding terminal includes a housing and an insulating base that is detachably installed inside the housing. The insulating base is detachably connected to the housing via a resilient snap-fit ​​structure.

[0008] The flexible snap-fit ​​structure includes a flexible snap-fit ​​member disposed on an insulating base and a snap-fit ​​mating part disposed on the inner wall of the housing;

[0009] The insulating base is provided with operating parts extending to the outside of the housing. The radial length of the two operating parts exceeds the outer wall surface of the housing. The operating parts are used to apply external force to deform the elastic snap-fit ​​to achieve the disassembly of the insulating base.

[0010] With the above technical solution, when it is necessary to replace the insulating seat, the operator pinches the operating part that extends to the outside of the housing with his / her fingers, lifts the operating part upward, and the external force is transmitted to the elastic snap-fit ​​part through the insulating seat, causing it to deform laterally and disengage from the snap-fit ​​part. At this time, the insulating seat can be directly pulled out of the housing, realizing quick replacement, which is convenient and fast.

[0011] Furthermore, mounting plates are fixedly connected to both ends of the outer casing, and each mounting plate has mounting holes inside.

[0012] Furthermore, the outer casing and the insulating base are respectively provided with interconnected wire-laying holes at corresponding positions.

[0013] Furthermore, the insulating base has multiple fixing components inside, each of which is located between two wire feeding holes.

[0014] Furthermore, the fixing components include multiple sets, each set of fixing components includes a fixing ring, and elastic plates are fixedly connected to both ends of the top of the fixing ring.

[0015] Furthermore, each set of fixing components also includes a threaded rod, which is fixedly connected to one of the elastic plates and threadedly connected to the other elastic plate.

[0016] Furthermore, each threaded rod has a threaded nut on its outer wall, and two protrusions are fixedly connected inside the retaining ring.

[0017] With the above technical solution, simply rotating the fixing nut will drive the elastic plate to generate radial contraction force on the fixing ring. Combined with the protrusion, this creates a double clamping effect, effectively ensuring that the grounding wire will not loosen due to external forces such as vibration or pulling during long-term use, thus guaranteeing the stability of conductive contact.

[0018] Furthermore, each fixing ring has a fixing seat fixedly connected to its bottom, and each fixing seat is fixedly connected to the inner wall of the insulating seat. The outer walls of the two protrusions have an arc-shaped curved surface structure.

[0019] In summary, this application includes at least one of the following beneficial technical effects:

[0020] (1) With the setting of the elastic snap-fit ​​structure, when the insulating seat needs to be replaced, the operator pinches the operating part that extends to the outside of the shell with his fingers and lifts the operating part upward. The external force is transmitted to the elastic snap-fit ​​part through the insulating seat, causing it to deform laterally and disengage from the snap-fit ​​part. At this time, the insulating seat can be directly pulled out of the shell, realizing quick replacement, which is convenient and fast.

[0021] (2) By setting a fixing component, this utility model can drive the elastic plate to drive the fixing ring to generate radial contraction force by simply rotating the fixing nut. Combined with the protrusion, it forms a double clamping effect, which can effectively ensure that the grounding wire will not loosen due to external forces such as vibration and pulling during long-term use, thereby ensuring the stability of conductive contact. Attached Figure Description

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

[0023] Figure 2 This is a side view of the present invention;

[0024] Figure 3This is a schematic diagram of the connection structure between the card block and the card slot of this utility model;

[0025] Figure 4 This is a plan view of the present invention;

[0026] Figure 5 This is a partial view of the present invention.

[0027] Explanation of reference numerals in the attached drawings: 1. Outer shell; 2. Mounting plate; 3. Insulating base; 4. Operating part; 5. Cable release hole; 6. Elastic snap-fit ​​part; 7. Snap-fit ​​mating part; 8. Fixed base; 9. Fixed ring; 10. Elastic plate; 11. Threaded rod; 12. Fixing nut; 13. Protrusion. Detailed Implementation

[0028] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0029] Reference Figures 1-5 A grounding terminal that is easy to replace includes a housing 1 and an insulating base 3 that can be detachably installed inside the housing 1. The insulating base 3 is detachably connected to the housing 1 by an elastic snap-fit ​​structure.

[0030] The elastic snap-fit ​​structure includes an elastic snap-fit ​​member 6 disposed on the insulating base 3 and a snap-fit ​​mating part 7 disposed on the inner wall of the outer shell 1;

[0031] The insulating base 3 is provided with an operating part 4 extending to the outside of the housing 1. The radial length of the two operating parts 4 exceeds the outer wall surface of the housing 1. The operating parts 4 are used to apply external force to deform the elastic snap-fit ​​6 to achieve the disassembly of the insulating base 3.

[0032] During assembly, the insulating base 3 is inserted along the inner wall of the outer shell 1. At this time, the elastic snap-fit ​​parts 6 on both sides of the insulating base 3 align with the snap-fit ​​mating parts 7 on the inner wall of the outer shell 1. The elastic snap-fit ​​parts 6 are embedded into the snap-fit ​​mating parts 7 under their own elasticity, forming a snap-fit, so that the insulating base 3 is stably fixed inside the outer shell 1, and the insulating base 3 is completely aligned with the wire release hole 5 of the outer shell 1, forming a through wire channel.

[0033] When it is necessary to replace the insulating base 3, the operator pinches the operating part 4 that extends to the outside of the outer shell 1 with his / her fingers (because the radial length of the operating part 4 exceeds the outer wall of the outer shell 1, force can be applied directly), lifts the operating part 4 upward, and the external force is transmitted to the elastic snap-fit ​​6 through the insulating base 3, causing it to deform laterally and disengage from the snap-fit ​​mating part 7. At this time, the insulating base 3 can be directly pulled out of the outer shell 1 to achieve quick replacement.

[0034] Reference Figures 1-3 Both ends of the outer shell 1 are fixedly connected to mounting plates 2. Each mounting plate 2 has an internal mounting hole. The outer shell 1 and the insulating base 3 have interconnected wire-laying holes 5 at corresponding positions. The insulating base 3 has multiple fixing components inside, and each fixing component is located between two wire-laying holes 5.

[0035] The mounting plates 2 at both ends of the outer casing 1 are the fixed base for the entire terminal. The mounting holes on the mounting plates 2 can be used to insert bolts, screws and other fasteners to firmly connect the outer casing 1 to the preset position of the power cabinet.

[0036] The wire-laying holes 5 at corresponding positions on the outer casing 1 and the insulating base 3 are interconnected, forming a through-through conductor channel. When the grounding wire is inserted from the outside, it is first positioned through the wire-laying hole 5 of the outer casing 1, then enters the wire-laying hole 5 of the insulating base 3, and finally reaches the internal fixing component, and then exits through the wire-laying holes 5 of the insulating base 3 and the outer casing 1.

[0037] Reference Figures 4-5 The fixing components include multiple sets, each set of fixing components includes a fixing ring 9, with elastic plates 10 fixedly connected to both ends of the top of the fixing ring 9. Each set of fixing components also includes a threaded rod 11, which is fixedly connected to one of the elastic plates 10 and threadedly connected to the other elastic plate 10. A fixing nut 12 is threadedly connected to the outer wall of each threaded rod 11. Two protrusions 13 are fixedly connected inside the fixing ring 9. A fixing seat 8 is fixedly connected to the bottom of each fixing ring 9. Each fixing seat 8 is fixedly connected to the inner wall of the insulating seat 3. The outer walls of the two protrusions 13 have an arc-shaped curved surface structure.

[0038] The fixing ring 9 is fixed to the inner wall of the insulating base 3 by the fixing seat 8 at the bottom, forming a stable support base; after the grounding wire passes through the wire release hole 5, it enters the interior of the fixing ring 9. The two arc-shaped protrusions 13 on the inner wall can initially fit against the surface of the wire, increasing the contact friction; when the fixing nut 12 is rotated, the two elastic plates 10 approach each other under the action of thread transmission, causing the fixing ring 9 to generate radial contraction force, which, together with the protrusions 13, tightly clamps the grounding wire, thereby realizing the reliable fixing and conductive connection of the grounding wire.

[0039] Working principle: First, the housing 1 is fixed to the preset position of the power cabinet using bolts or screws through the mounting holes on the mounting plates 2 at both ends of the housing 1, completing the overall installation of the grounding terminal. Next, the insulating base 3 is inserted along the inner wall of the housing 1. At this time, the elastic snap-fit ​​pieces 6 on both sides of the insulating base 3 align with the snap-fit ​​mating parts 7 on the inner wall of the housing 1. The elastic snap-fit ​​pieces 6 embed into the snap-fit ​​mating parts 7 under their own elasticity to form a snap-fit, so that the insulating base 3 is stably fixed inside the housing 1, and the insulating base 3 is completely aligned with the wire release hole 5 of the housing 1, forming a through conductor channel. Subsequently, the grounding wire is passed in from the outside, first positioned through the wire release hole 5 of the housing 1, then enters the wire release hole 5 of the insulating base 3, reaches the fixing component inside the insulating base 3, and then exits through the wire release hole 5 of the insulating base 3 and the housing 1.

[0040] For fixing the grounding wire, since the fixing ring 9 is fixed to the inner wall of the insulating seat 3 through the fixing seat 8 at the bottom, after the grounding wire enters the interior of the fixing ring 9, the two arc-shaped protrusions 13 on the inner wall initially fit against the surface of the wire, increasing the contact friction. When the fixing nut 12 is rotated, the two elastic plates 10 move closer to each other under the action of thread transmission, which drives the fixing ring 9 to generate radial contraction force, which, together with the protrusions 13, tightly clamps the grounding wire, achieving reliable fixing and conductive connection.

[0041] When it is necessary to replace the insulating base 3, the operator pinches the operating part 4 that extends to the outside of the outer shell 1 with his / her fingers, lifts the operating part 4 upward, and the external force is transmitted through the insulating base 3 to the elastic snap-fit ​​6, causing it to deform laterally and disengage from the snap-fit ​​mating part 7. The insulating base 3 can be directly pulled out of the outer shell 1 without disassembling the outer shell or adjacent parts.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A grounding terminal that is easy to replace, characterized in that, include: The housing (1) and the insulating seat (3) detachably installed inside the housing (1) are provided with a flexible snap-fit ​​structure to form a detachable connection with the housing (1). The elastic snap-fit ​​structure includes an elastic snap-fit ​​member (6) provided on the insulating base (3) and a snap-fit ​​mating part (7) provided on the inner wall of the outer shell (1); The insulating base (3) is provided with an operating part (4) extending to the outside of the outer shell (1). The radial length of the two operating parts (4) exceeds the outer wall surface of the outer shell (1). The operating part (4) is used to apply external force to deform the elastic snap-fit ​​member (6) to disassemble the insulating base (3).

2. The easily replaceable grounding terminal according to claim 1, characterized in that: Both ends of the outer shell (1) are fixedly connected to mounting plates (2), and each mounting plate (2) has mounting holes inside.

3. The easily replaceable grounding terminal according to claim 1, characterized in that: The outer shell (1) and the insulating base (3) are respectively provided with interconnected wire-laying holes (5).

4. The easily replaceable grounding terminal according to claim 3, characterized in that: The insulating base (3) is provided with multiple fixing components inside, each of which is located between two wire release holes (5).

5. A replaceable grounding terminal according to claim 4, characterized in that: The fixing components include multiple sets, and each set of fixing components includes a fixing ring (9), with elastic plates (10) fixedly connected to both ends of the top of the fixing ring (9).

6. A replaceable grounding terminal according to claim 5, characterized in that: Each set of the fixing components also includes a threaded rod (11), which is fixedly connected to one of the elastic plates (10) and threadedly connected to the other elastic plate (10).

7. A replaceable grounding terminal according to claim 6, characterized in that: Each of the threaded rods (11) has a fixed nut (12) threaded to its outer wall, and the fixed ring (9) has two protrusions (13) fixedly connected inside.

8. A replaceable grounding terminal according to claim 7, characterized in that: Each of the fixed rings (9) is fixedly connected to a fixed seat (8) at its bottom. Each fixed seat (8) is fixedly connected to the inner wall of the insulating seat (3). The outer walls of the two protrusions (13) are arc-shaped curved surfaces.

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