Drawer seat cover plate

Abstract

The utility model provides a drawer seat cover plate, which comprises a cover plate body, the cover plate body comprises a base top part used for being contacted with a circuit breaker and a base bottom part used for being connected with a drawer seat base, and the base top part is provided with an installation window used for connecting the circuit breaker with a contact inside a drawer seat. Sliding guide rails are arranged on the two sides of the installation window, an automatic closing isolation mechanism is arranged between the sliding guide rails, and the automatic closing isolation mechanism comprises an insulation baffle used for shielding the installation window and a driving assembly used for pushing the insulation baffle to slide along the sliding guide rails. According to the technical scheme, when the circuit breaker is replaced, the insulating baffle automatically shields an electrified part, prevents personnel contact, conforms to the safety standard, reduces dust or foreign matter entering, maintains cleaning and functions of internal parts, and further improves the safety by adopting the insulating baffle.

Description

Technical Field

[0001] This utility model relates to the field of circuit breakers, specifically to a drawer seat cover. Background Technology

[0002] Drawer-type circuit breakers are commonly used in power distribution systems, allowing for replacement or maintenance without interrupting the power supply, as their drawer-like structure allows them to be pulled out. The drawer base is the base for mounting the circuit breaker and needs to provide guiding, fixing, connecting, and interlocking functions.

[0003] Existing drawer-type circuit breakers may have the following problems: improper design of the isolation baffle may result in the inability to completely cover the live parts, so how can the safety of operators be ensured? And the complex structural design may lead to the need to keep the internal components of the drawer clean and prevent dust or foreign objects from entering when replacing or maintaining the circuit breaker. Utility Model Content

[0004] Based on the above problems, the purpose of this utility model is to provide a drawer seat cover.

[0005] To address the above problems, the following technical solution is provided: a drawer seat cover, comprising a cover body, the cover body including a base top for contacting a circuit breaker and a base bottom for connecting to a drawer seat base, the base top being provided with an installation window for connecting the circuit breaker to contacts inside the drawer seat, sliding guide rails being provided on both sides of the installation window, and an automatic closing isolation mechanism being provided between the sliding guide rails, the automatic closing isolation mechanism including an insulating baffle for blocking the installation window and a drive component for pushing the insulating baffle to slide along the sliding guide rails.

[0006] By adopting the above technical solution, the insulating baffle automatically shields the live parts when replacing the circuit breaker, preventing personnel from contacting them, meeting safety standards, reducing the entry of dust or foreign objects, maintaining the cleanliness and function of internal components, and further improving safety by using the insulating baffle.

[0007] The present invention further includes: an open end on the other end of the sliding guide rail relative to the mounting window, a limiting base plate detachably disposed between the two open ends, and a driving component including a spring disposed between the limiting base plate and the insulating baffle. The length of the insulating baffle is greater than the length of the mounting window, and the length of the sliding guide rail is greater than twice the length of the mounting window.

[0008] By adopting the above technical solution, the insulating baffle is first inserted between the sliding guide rails from the open end, and then the spring and the limiting base plate are installed. When the circuit breaker is connected to the drawer seat, the insulating baffle abuts against the circuit breaker, exposing the installation window. At this time, the spring is in a compressed state. When the circuit breaker is separated from the drawer seat, the spring is released and returns to its original state, pushing the insulating baffle to move towards the installation window until it abuts against the inner wall of the sliding guide rail, covering the entire installation window and automatically closing. This completely covers the interior, preventing personnel from accidentally touching the live area, ensuring high safety. After the baffle is closed, it forms a physical barrier to prevent dust, metal debris, etc. from entering the contact area, reducing the risk of poor contact or short circuit.

[0009] The present invention further comprises: a first receiving groove for accommodating one end of the spring is provided on both sides of the end face of the limiting base plate corresponding to the insulating baffle, and a second receiving groove for accommodating the other end of the spring is provided on both sides of the end face of the insulating baffle corresponding to the limiting base plate. The first receiving groove and the second receiving groove are arranged opposite to each other and are adapted to the spring. The spring is located below the sliding guide rail.

[0010] By adopting the above technical solution, the first and second receiving grooves are set to limit the spring, making it more stable and less prone to displacement during compression and recovery. The grooves are set below the sliding guide rail to provide shielding and anti-slip function, resulting in high stability.

[0011] The present invention further includes: the open end is provided with a countersunk hole for accommodating fasteners; the limiting base plate is provided with mounting holes adapted to the fasteners; and the limiting base plate is detachably connected to the open end of the sliding guide rail through the fasteners, mounting holes, and countersunk holes.

[0012] By adopting the above technical solution, the limiting base plate can be detachably connected to the open end of the sliding guide rail through fasteners, mounting holes and countersunk holes, which facilitates quick assembly. The fastener connection provides high stability, and the countersunk holes ensure that the fasteners do not protrude above the sliding guide rail, making the surface of the sliding guide rail flat and more aesthetically pleasing, while also preventing rubbing when connected to the circuit breaker.

[0013] The present invention further comprises: the sliding guide rail being higher than the plane of the installation window; a connecting boss being provided at the other end of the sliding guide rail opposite to the opening end; the connecting boss and the sliding guide rail surrounding the installation window on three sides; the connecting boss and the sliding guide rail being integrally formed; the height of the connecting boss being adapted to the height of the sliding guide rail; and operating protrusions being provided at both ends of the insulating baffle, the operating protrusions being set at the same height as the connecting boss.

[0014] By adopting the above technical solution, the connecting boss, sliding guide rail and operating protrusion surround the installation window on all four sides, further protecting the connection between the circuit breaker and the inside of the drawer seat, preventing dust and moisture from seeping in from the joints. The four parts are set at the same height to keep the contact surface with the circuit breaker flat, which facilitates installation and connection and improves stability.

[0015] The present invention further comprises: receiving protrusions on both sides of the top of the base for cooperating with the circuit breaker, the length of the receiving protrusions being adapted to the length of the top of the base, and the height of the receiving protrusions being higher than the sliding guide rail.

[0016] By adopting the above technical solution, the circuit breaker is raised by supporting the protrusion, and a gap is created between the insulating baffle and the circuit breaker. Its movement is not suppressed by the gravity of the circuit breaker, reducing friction and further improving the stability of the insulating baffle's movement.

[0017] The present invention is further provided with an adhesive strip on the end face of the operating protrusion near the installation window corresponding to the connecting protrusion.

[0018] By adopting the above technical solution, the rubber strip is elastic, which firstly reduces the noise generated when the insulating baffle closes automatically, thus playing a role in silencing, and secondly plays a role in buffering.

[0019] The present invention is further provided with: positioning holes are symmetrically arranged on the sliding guide rails on both sides, and ball springs adapted to the positioning holes are arranged on both sides of the insulating baffle.

[0020] By adopting the above technical solution, when the drawer base is connected to the circuit breaker, the position of the insulating baffle can be adjusted by operating the protrusion, so that it moves to engage with the ball spring and the positioning hole, which is convenient for assembly. The use of ball spring is low in cost, simple in structure, and convenient and quick in positioning and unpositioning, making it easy to use. Attached Figure Description

[0021] Figure 1 The three-dimensional representation of this utility model Figure 1 .

[0022] Figure 2 The three-dimensional representation of this utility model Figure 2 .

[0023] Figure 3 This is a perspective view of the cover plate body of this utility model.

[0024] Figure 4 for Figure 3 Enlarged view of part A.

[0025] Figure 5 This is a cross-sectional view of the present invention.

[0026] The labels in the diagram mean: 1. Cover plate body, 11. Base top, 111. Receiving protrusion, 12. Base bottom, 13. Mounting window, 2. Sliding guide rail, 21. Opening end, 22. Countersunk hole, 23. Positioning hole, 3. Insulating baffle, 31. Second receiving groove, 32. Operating protrusion, 33. Ball spring, 4. Drive assembly, 41. Spring, 5. Limiting base plate, 51. First receiving groove, 52. Mounting hole, 6. Connecting boss, 7. Adhesive strip. Detailed Implementation

[0027] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0028] Reference Appendix Figure 1-5 A drawer seat cover includes a cover body 1, the cover body 1 including a base top 11 for contacting a circuit breaker and a base bottom 12 for connecting to a drawer seat base. The base top 11 is provided with an installation window 13 for connecting the circuit breaker to the contacts inside the drawer seat. Sliding guide rails 2 are provided on both sides of the installation window 13. An automatic closing isolation mechanism is provided between the sliding guide rails 2. The automatic closing isolation mechanism includes an insulating baffle 3 for blocking the installation window 13 and a driving component 4 for pushing the insulating baffle 3 to slide along the sliding guide rails 2.

[0029] This embodiment further includes the following configuration: the sliding guide rail 2 has an open end 21 at the other end relative to the mounting window 13, and a limiting base plate 5 is detachably provided between the two open ends 21. The driving assembly 4 includes a spring 41 disposed between the limiting base plate 5 and the insulating baffle 3. The length of the insulating baffle 3 is greater than the length of the mounting window 13, and the length of the sliding guide rail 2 is greater than twice the length of the mounting window 13.

[0030] This embodiment further includes the following configuration: the limiting base plate 5 is provided with a first receiving groove 51 on both sides of the end face of the insulating baffle 3 for accommodating one end of the spring 41, and the insulating baffle 3 is provided with a second receiving groove 31 on both sides of the end face of the limiting base plate 5 for accommodating the other end of the spring 41. The first receiving groove 51 and the second receiving groove 31 are arranged opposite to each other and are adapted to the spring 41. The spring 41 is located below the sliding guide rail 2.

[0031] This embodiment further includes the following features: the open end 21 is provided with a countersunk hole 22 for accommodating fasteners, and the limiting base plate 5 is provided with an mounting hole 52 adapted to the fasteners. The limiting base plate 5 is detachably connected to the open end 21 of the sliding guide rail 2 through the fasteners, the mounting hole 52, and the countersunk hole 22.

[0032] In this embodiment, the sliding guide rail 2 is higher than the plane of the mounting window 13. A connecting boss 6 is provided at the other end of the sliding guide rail 2 opposite to the opening end 21. The connecting boss 6 and the sliding guide rail 2 surround the mounting window 13 on three sides. The connecting boss 6 and the sliding guide rail 2 are integrally formed. The height of the connecting boss 6 is adapted to the height of the sliding guide rail 2. The two ends of the insulating baffle 3 are respectively provided with operating protrusions 32. The operating protrusions 32 are set at the same height as the connecting boss 6.

[0033] In this embodiment, the base top 11 is further provided with receiving protrusions 111 on both sides for cooperating with the circuit breaker. The length of the receiving protrusions 111 is adapted to the length of the base top 11, and the height of the receiving protrusions 111 is higher than that of the sliding guide rail 2.

[0034] In this embodiment, an adhesive strip 7 is provided on the end face of the operating protrusion 32 near the mounting window 13 corresponding to the connecting boss 6.

[0035] In this embodiment, the sliding guide rails 2 on both sides are symmetrically provided with positioning holes 23, and the insulating baffle 3 is provided with ball springs 33 on both sides that are adapted to the positioning holes 23.

[0036] Although this document frequently uses terms such as cover plate body 1, base top 11, receiving protrusion 111, base bottom 12, mounting window 13, sliding guide rail 2, opening end 21, countersunk hole 22, positioning hole 23, insulating baffle 3, second receiving groove 31, operating protrusion 32, ball spring 33, drive assembly 4, spring 41, limiting base plate 5, first receiving groove 51, mounting hole 52, connecting protrusion 6, and adhesive strip 7, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A drawer seat cover plate, characterized by: The device includes a cover plate body, which comprises a base top for contacting a circuit breaker and a base bottom for connecting to a drawer seat base. The base top is provided with an installation window for connecting the circuit breaker to the contacts inside the drawer seat. Sliding guide rails are provided on both sides of the installation window, and an automatic closing isolation mechanism is provided between the sliding guide rails. The automatic closing isolation mechanism includes an insulating baffle for blocking the installation window and a drive assembly for pushing the insulating baffle to slide along the sliding guide rails.

2. The drawer gasket of claim 1, wherein: The sliding guide rail has an open end at the other end relative to the mounting window, and a limiting base plate is detachably provided between the two open ends. The driving component includes a spring disposed between the limiting base plate and the insulating baffle. The length of the insulating baffle is greater than the length of the mounting window, and the length of the sliding guide rail is greater than twice the length of the mounting window.

3. A drawer gasket according to claim 2, wherein: The limiting base plate has a first receiving groove on each side of the end face corresponding to the insulating baffle for accommodating one end of the spring, and the insulating baffle has a second receiving groove on each side of the end face corresponding to the limiting base plate for accommodating the other end of the spring. The first receiving groove and the second receiving groove are arranged opposite to each other and are adapted to the spring. The spring is located below the sliding guide rail.

4. The drawer gasket of claim 2, wherein: The open end is provided with a countersunk hole for accommodating fasteners, and the limiting base plate is provided with mounting holes adapted to the fasteners. The limiting base plate is detachably connected to the open end of the sliding guide rail through fasteners, mounting holes and countersunk holes.

5. The drawer gasket of claim 2, wherein: The sliding guide rail is higher than the plane of the installation window. A connecting boss is provided at the other end of the sliding guide rail opposite to the opening end. The connecting boss and the sliding guide rail surround the installation window on three sides. The connecting boss and the sliding guide rail are integrally formed. The height of the connecting boss is adapted to the height of the sliding guide rail. The two ends of the insulating baffle are respectively provided with operating protrusions. The operating protrusions are set at the same height as the connecting boss.

6. A drawer gasket according to claim 5, wherein: An adhesive strip is provided on the end face of the operating protrusion near the installation window corresponding to the connecting boss.

7. The drawer gasket of claim 5, wherein: The base has receiving protrusions on both sides for cooperating with the circuit breaker. The length of the receiving protrusions is adapted to the length of the base top, and the height of the receiving protrusions is higher than that of the sliding guide rail.

8. The drawer gasket of claim 1, wherein: The sliding guide rails on both sides are symmetrically provided with positioning holes, and the insulating baffle is provided with ball springs on both sides that are adapted to the positioning holes.

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