Portable electrical testing aid for switch cabinets

Abstract

The present invention discloses a portable electric test auxiliary tool for a switch cabinet, comprising a hollow support rod; a main crossbar housing and a main crossbar movably mounted in the main crossbar housing, wherein both ends of the main crossbar are respectively provided with a support arm for pushing an isolation baffle in the switch cabinet; a secondary crossbar housing and a secondary crossbar movably mounted in the secondary crossbar housing, wherein the secondary crossbar housing is arranged on the support rod and is located between the working end and the handle end; and a fixing buckle, wherein the fixing buckle is arranged on the support rod and is used to fix the electric test auxiliary tool after the isolation baffle in the switch cabinet is opened. The portable electric test auxiliary tool for a switch cabinet is intended to solve the technical problems in the prior art that the traditional electric test trolley is inconvenient to operate and requires a lot of manual labor.

Description

Technical Field

[0001] The invention belongs to the field of electrical engineering, and in particular relates to a portable auxiliary tool for testing electricity in a switch cabinet. Background Art

[0002] When the substation operation and maintenance personnel perform 10kV switching operations in the substation, before closing the line grounding switch, in order to prevent the live display from being unreliable, they use a contact tester to directly test the electricity (the live display is only used as a criterion for electricity, not as a criterion for no electricity). At present, the main defects of using traditional electricity test carts are:

[0003] 1. It is heavy (about 30 pounds), inconvenient for one person to operate, and requires two people to lift;

[0004] 2. The operation time is too long. Especially for multi-interval power outages and nuclear phase operations, frequent lifting and lowering will cause the power outage switching operation time to be too long, and the operator will be physically exhausted, which may lead to consequences such as personal injury and equipment damage;

[0005] 3. The division of labor among personnel is limited, and operation must be performed by men or personnel with strong physical strength. Summary of the invention

[0006] 1. Technical issues to be resolved

[0007] Based on this, the present invention proposes a portable electrical testing auxiliary tool for a switch cabinet, which is intended to solve the technical problems in the prior art that the traditional electrical testing trolley causes inconvenience in operation and consumes a lot of manual labor.

[0008] (II) Technical solution

[0009] In order to solve the above technical problems, the present invention proposes a portable power test auxiliary tool for a switch cabinet, wherein the portable power test auxiliary tool for a switch cabinet comprises:

[0010] A hollow support rod, one end of which is a working end and the other end is a handle end, and a first support wheel is provided below the support rod near the working end;

[0011] A main crossbar housing and a main crossbar movably sleeved in the main crossbar housing, the main crossbar housing being arranged at the working end of the support rod, the main crossbar being perpendicular to the support rod and the two ends of the main crossbar protruding from the main crossbar housing, the two ends of the main crossbar being respectively provided with a support arm for pushing the isolation baffle in the switch cabinet, the main crossbar housing being provided with a first limiter for limiting the main crossbar in the moving direction of the main crossbar to the main crossbar housing, the two ends of the main crossbar being respectively provided with a bracket, the two ends of the main crossbar being respectively provided with a main telescopic portion that can be telescoped along the length direction of the main crossbar and a main clamping bolt corresponding to the main telescopic portion;

[0012] A secondary cross bar housing and a secondary cross bar movably sleeved in the secondary cross bar housing, the secondary cross bar housing being arranged on the support bar and being located between the working end and the handle end, the secondary cross bar being perpendicular to the support bar and the two ends of the secondary cross bar protruding from the secondary cross bar housing, a second supporting wheel being arranged below each of the two ends of the secondary cross bar, a second limiting member for limiting the secondary cross bar to be located at the secondary cross bar housing along the moving direction of the secondary cross bar is installed on the secondary cross bar housing, and the two ends of the secondary cross bar are also respectively provided with a secondary telescopic portion that can be telescoped along the length direction of the secondary cross bar and a secondary clamping bolt arranged corresponding to the secondary telescopic portion;

[0013] A fixing buckle is arranged on the support rod and is used to fix the electrical testing auxiliary tool after the isolation baffle in the switch cabinet is opened.

[0014] Preferably, the fixing buckle includes a fixing part fixedly arranged on the support rod, the fixing part has a fixed handle above the support rod, the fixing part has a buckle below the support rod, the fixing buckle also includes a movable handle hinged to the fixed handle, a spring is connected between the movable handle and the fixed handle, and the movable handle is used to cooperate with the buckle to fix the electrical testing auxiliary tool.

[0015] Preferably, the fixing buckle is located between the secondary cross bar housing and the handle end.

[0016] Preferably, the handle end is provided with an insulating handle.

[0017] Preferably, the first limiting member and the second limiting member are limiting bolts respectively.

[0018] Preferably, the main telescopic part and the auxiliary telescopic part are respectively multi-section sleeve rods.

[0019] Preferably, the support arm is perpendicular to the main crossbar.

[0020] Preferably, the bracket is an L-shaped bracket, and the lower crossbeam of the L-shaped bracket extends away from the support rod.

[0021] Preferably, the main cross bar housing is located above the support bar, and the secondary cross bar housing is located below the support bar.

[0022] (III) Beneficial effects

[0023] Compared with the prior art, the portable electric test auxiliary tool for switch cabinet of the present invention has the following beneficial effects:

[0024] 1) Improved safety: The portable power test auxiliary tool for switch cabinet is particularly suitable for 10kV switch cabinet. It is independent of the primary equipment of the substation. Under the premise of correct use, it does not affect the reliability and safety of the primary equipment. In addition, the invention is light in size, does not require a lot of physical strength, and has no risk of injury to personnel and equipment damage, so the safety performance of the staff is improved;

[0025] 2) Improved work efficiency: During use, it is no longer necessary for two people to carry out the operation, and one person can use it. Especially for multi-interval power outages and nuclear phase operations, the operating efficiency is improved, thereby reducing the power outage time for users, reducing the safety risks under abnormal operation of the power grid, and greatly improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The features and advantages of the present invention will be more clearly understood by referring to the accompanying drawings, which are schematic and should not be construed as limiting the present invention in any way. In the accompanying drawings:

[0027] Figure 1 It is a simplified three-dimensional schematic diagram of a portable electrical testing auxiliary tool for a switch cabinet according to an embodiment of the present invention;

[0028] Figure 2 It is a partially simplified schematic diagram of a portable electrical testing auxiliary tool for a switch cabinet according to an embodiment of the present invention.

[0029] Description of reference numerals:

[0030] 1-support rod, 2-first support wheel, 3-main cross bar, 4-main cross bar housing, 5-support arm, 6-first limiter, 7-bracket, 8-secondary cross bar, 9-secondary cross bar housing, 10-second support wheel, 11-second limiter, 12-fixing buckle, 13-insulating handle, 14-first telescopic section, 15-second telescopic section, 16-fixing belt, 17-positioning hole, 18-fastening bolt, 71-lower cross beam, 121-fixed handle, 122-buckle, 123-movable handle, 124-spring. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific implementation disclosed below.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements, or it can be a "transmission connection", that is, a power connection through various appropriate methods such as belt drive, gear drive or sprocket drive. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] See also Figure 1 The present invention provides a portable power test auxiliary tool for a switch cabinet, preferably used for but not limited to a 10kV switch cabinet, and the portable power test auxiliary tool for the switch cabinet includes:

[0034] A hollow support rod 1, one end of the support rod 1 is a working end, and the other end is a handle end. A first support wheel 2 is provided below the support rod 1 near the working end. The outer shell of the support rod 1 can be wrapped with a layer of insulating heat shrink sleeve (but not limited to this). The support rod 1 is light in size and has high material strength. The staff can use it with one hand, and there is no need for two people to repeatedly move it.

[0035] A main crossbar housing 4 and a main crossbar 3 movably mounted in the main crossbar housing 4, the main crossbar housing 4 is arranged (can be welded or other suitable mechanical connection methods) at the working end of the support rod 1, the main crossbar 3 is perpendicular to the support rod 1 and the two ends of the main crossbar 3 protrude from the main crossbar housing 4, and the two ends of the main crossbar 3 are respectively provided with a support arm 5 for pushing the isolation baffle in the switch cabinet, and the main crossbar housing 4 is installed with a first limit member 6 for limiting the main crossbar 3 along the moving direction of the main crossbar 3 to the main crossbar housing 4, and a bracket 7 is respectively provided below the two ends of the main crossbar 3. The two ends of the main crossbar 3 are also respectively provided with a main telescopic part that can be telescoped along the length direction of the main crossbar 3 and a main clamping bolt corresponding to the main telescopic part. Specifically, the length of the main telescopic part can be adjusted by rotating the bolt to realize the telescopic function of the main crossbar 3, but the present invention is not limited to this; the length of the main crossbar 3 can be adjusted according to different 10kV switch widths, and the two ends of the main crossbar 3 are connected to the support arm 5, which plays a major driving role.

[0036] A secondary cross bar housing 9 and a secondary cross bar 8 movably mounted in the secondary cross bar housing 9, the secondary cross bar housing 9 is arranged (can be welded or other suitable mechanical connection methods) on the support rod 1 and is located between the working end and the handle end, the secondary cross bar 8 is perpendicular to the support rod 1 and the two ends of the secondary cross bar 8 protrude from the secondary cross bar housing 9, and a second supporting wheel 10 is arranged below each of the two ends of the secondary cross bar 8, and a second limiting member 11 is installed on the secondary cross bar housing 9 for limiting the secondary cross bar 8 along the moving direction of the secondary cross bar 8 to the secondary cross bar housing 9, and the two ends of the secondary cross bar 8 are also respectively provided with a secondary telescopic part that can be telescoped along the length direction of the secondary cross bar 8 and a secondary clamping bolt arranged corresponding to the secondary telescopic part. Similarly, the length of the secondary telescopic part can be adjusted by rotating the bolt to realize the telescopic function of the secondary cross bar 8, but the present invention is not limited to this; the length of the secondary cross bar 8 can be adjusted according to different 10kV switch widths to support and accurately position subsequent operations.

[0037] The fixing buckle 12 is arranged on the support rod 1 and is used to fix the electrical testing auxiliary tool after the isolation baffle in the switch cabinet is opened.

[0038] The main crossbar housing 9 is located above the support rod 1, and the secondary crossbar housing 9 is located below the support rod 1. This makes the force support of the entire tool more reasonable, but this is a preferred solution. Even if this specific arrangement is not adopted, it will fall within the protection scope of the present invention.

[0039] According to a specific embodiment of the present invention, the fixing buckle 12 includes a fixing part fixedly arranged on the support rod 1, the fixing part has a fixed handle 121 above the support rod 1, and the fixing part has a buckle 122 below the support rod 1. The fixing buckle 12 also includes a movable handle 123 hinged to the fixed handle 121, and a spring 124 is connected between the movable handle 123 and the fixed handle 121. The movable handle 123 is used to cooperate with the buckle 122 to fix the electrical test auxiliary tool. For example, the movable handle 123 can clamp the electrical test auxiliary tool through the elastic force of the spring 124 and then cooperate with the buckle. Of course, the present invention is not limited to this, and other tightening schemes can also be used. The fixing buckle 12 is located between the secondary cross bar housing 9 and the handle end. An insulating handle 13 is provided at the handle end to facilitate personnel operation. The material of the insulating handle 13 is preferably epoxy resin material or any other replaceable material.

[0040] According to a preferred embodiment of the present invention, the first limiter 6 and the second limiter 11 are limiter bolts. The main telescopic part and the auxiliary telescopic part are multi-section sleeve rods (the multi-section sleeve rods can adopt various known structures, which can be referred to Figure 2 The multi-section sleeve rod has a first telescopic section 14 and a second telescopic section 15, and the main clamp and the auxiliary clamp can also adopt various closable and openable fixed clamp structures in the prior art, which can fix the multi-section sleeve rod). Figure 2 A specific schematic structure of a main clamp is given (the auxiliary clamp can also refer to this figure), for example, the main telescopic part includes a first telescopic section 14 and a second telescopic section 15, of course, at this time, the arm 5 is arranged on the second telescopic section 15, in short, the arm 5 should be arranged on the telescopic section of the last section of the multi-section sleeve rod, the first telescopic section 14 can be telescopically mounted in the main cross bar housing 4, the second telescopic section 15 is mounted in the first telescopic section 14, the first telescopic section 14 has a fixed belt 16 with holes on both sides, and the second telescopic section 15 has a plurality of positioning holes 17 correspondingly arranged on both sides along its length direction, the second telescopic section 15 extends to the desired position, the main clamp and the auxiliary clamp can be fasteners such as a fastening bolt 18, and the fastening bolt 18 can be inserted into the hole of the fixing belt 16 and the positioning hole 17 of the second telescopic section 15 to achieve locking and positioning. The present invention is not limited to this, and other alternatives can also be used.

[0041] According to a specific embodiment of the present invention, the support arm 5 is perpendicular to the main cross bar 3, but the present invention is not limited thereto, and even if the support arm 5 is not perpendicular to the main cross bar 3, it will fall within the protection scope of the present invention.

[0042] In addition, the bracket 7 is an L-shaped bracket, and the lower crossbeam 71 of the L-shaped bracket extends away from the support rod 1. Of course, the bracket 7 can also adopt other replaceable shapes.

[0043] When the portable electrical testing auxiliary tool for a switch cabinet is used in a switch cabinet, only one person needs to hold the insulating handle 13 to operate the entire tool so that the support arm 5 pushes the isolation baffle in the switch cabinet. The lengths of the main cross bar 3 and the secondary cross bar 8 can be adjusted before operation to make it suitable for 10kV switch cabinets of different sizes and site working environments.

[0044] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A portable electrical testing auxiliary tool for a switch cabinet, characterized in that: The portable electrical testing auxiliary tool for switch cabinet comprises: A hollow support rod, one end of which is a working end and the other end is a handle end, and a first support wheel is provided below the support rod near the working end; A main crossbar housing and a main crossbar movably sleeved in the main crossbar housing, the main crossbar housing being arranged at the working end of the support rod, the main crossbar being perpendicular to the support rod and the two ends of the main crossbar protruding from the main crossbar housing, the two ends of the main crossbar being respectively provided with a support arm for pushing the isolation baffle in the switch cabinet, the main crossbar housing being provided with a first limiter for limiting the main crossbar in the moving direction of the main crossbar to the main crossbar housing, the two ends of the main crossbar being respectively provided with a bracket, the two ends of the main crossbar being respectively provided with a main telescopic portion that can be telescoped along the length direction of the main crossbar and a main clamping bolt corresponding to the main telescopic portion; A secondary cross bar housing and a secondary cross bar movably sleeved in the secondary cross bar housing, the secondary cross bar housing being arranged on the support bar and being located between the working end and the handle end, the secondary cross bar being perpendicular to the support bar and the two ends of the secondary cross bar protruding from the secondary cross bar housing, a second supporting wheel being arranged below each of the two ends of the secondary cross bar, a second limiting member for limiting the secondary cross bar to be located at the secondary cross bar housing along the moving direction of the secondary cross bar is installed on the secondary cross bar housing, and the two ends of the secondary cross bar are also respectively provided with a secondary telescopic portion that can be telescoped along the length direction of the secondary cross bar and a secondary clamping bolt arranged corresponding to the secondary telescopic portion; A fixing buckle, which is arranged on the support rod and is used to fix the electrical testing auxiliary tool after the isolation baffle in the switch cabinet is opened; The fixing buckle is located between the secondary cross bar housing and the handle end, and the handle end is provided with an insulating handle.

2. The portable electrical testing auxiliary tool for switch cabinet according to claim 1, characterized in that: The fixing buckle includes a fixing part fixedly arranged on the support rod, the fixing part has a fixed handle above the support rod, the fixing part has a buckle below the support rod, the fixing buckle also includes a movable handle hinged to the fixed handle, a spring is connected between the movable handle and the fixed handle, and the movable handle is used to cooperate with the buckle to fix the electrical testing auxiliary tool.

3. The portable electrical testing auxiliary tool for a switch cabinet according to any one of claims 1 to 2, characterized in that: The first limiting member and the second limiting member are limiting bolts respectively.

4. The portable electrical testing auxiliary tool for a switch cabinet according to any one of claims 1 to 2, characterized in that: The main telescopic part and the auxiliary telescopic part are respectively multi-section sleeve rods.

5. The portable electrical testing auxiliary tool for a switch cabinet according to any one of claims 1 to 2, characterized in that: The support arm is perpendicular to the main crossbar.

6. The portable electrical testing auxiliary tool for a switch cabinet according to any one of claims 1 to 2, characterized in that: The bracket is an L-shaped bracket, and the lower cross beam of the L-shaped bracket extends away from the support rod.

7. The portable electrical testing auxiliary tool for a switch cabinet according to any one of claims 1 to 2, characterized in that: The main cross bar housing is located above the support bar, and the secondary cross bar housing is located below the support bar.

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