A new type of switch handle locking device

Abstract

The present application relates to the field of power equipment, more particularly to a novel switch handle locking device, comprising a locking upper cover, a locking piece and a locking base arranged outside the switch handle, wherein a first limiting piece is arranged on the locking base, a second limiting piece matched with the first limiting piece is arranged on the locking upper cover, when the locking upper cover is installed on the locking base, the first limiting piece on the locking base clamps and sets the second limiting piece on the locking upper cover; the locking piece locks the locking upper cover on the locking base.

Description

Technical Field

[0001] This invention relates to the field of power equipment, and more specifically, to a novel switch handle locking device. Background Technology

[0002] High and low voltage switchgear is the core control and protection equipment in power distribution systems. It is widely used in various power scenarios such as industrial and mining enterprises, residential communities, and municipal power distribution. Its operational safety is directly related to the stable and reliable operation of the entire power distribution system. The switch handle configured in the switchgear is the core component for realizing the opening, closing, and energy storage operations of the equipment. In order to meet the needs of diverse operating conditions, some existing high and low voltage switchgear operating mechanism handles adopt a 360° full-range rotation structure design. Moreover, the equipment operation specifications require that each rotation position of the handle must be equipped with a reliable limit protection structure to prevent equipment failure, short circuit tripping, and even electric shock caused by misoperation or accidental contact.

[0003] Currently, for the safety protection of switchgear operating handles, the industry generally adopts conventional protective devices such as fixed protective covers, simple shielding sleeves, and gear limit buckles. However, in actual application, it has been found that the existing conventional protective devices have great limitations in adaptability and cannot meet the protection requirements of 360° rotating operating handles.

[0004] Firstly, existing conventional protective structures are mostly designed for fixed-angle swing handles or fixed handles, which cannot adapt to the 360° full-range rotation characteristics of the handle. This can easily hinder the normal rotation operation of the handle, and at the same time, it cannot achieve effective limit protection for all gear positions, resulting in blind spots and insufficient reliability of safety protection.

[0005] Secondly, the 360° rotating operating handles equipped with high and low voltage switchgear in existing power distribution rooms are of various models and specifications. The length, diameter, installation spacing, and structural shape of the handles vary greatly among different brands and models of switchgear. If a dedicated protective device is to be customized and developed for each type of handle, a large amount of investment in research and development, mold development, and manufacturing costs is required. The product has extremely poor versatility, and the investment in research and development and production resources is large, which greatly increases the cost of safety protection transformation of power distribution equipment and is not conducive to mass promotion and application.

[0006] Therefore, it is necessary to propose a new type of switch handle locking device to solve the above problems. Summary of the Invention

[0007] To overcome at least one of the defects (deficiencies) of the prior art described above, the present invention provides a novel switch handle locking device.

[0008] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows: a novel switch handle locking device, comprising a locking cover, a locking member and a locking base disposed on the outside of the switch handle; The locking base is provided with a first limiting member, and the locking cover is provided with a second limiting member that matches the first limiting member. When the locking cover is installed on the locking base, the first limiting member on the locking base locks and positions the second limiting member on the locking cover. The locking element locks the locking cover onto the locking base. By setting the locking base on the outside of the switch handle and providing a first limiting element on the locking base and a second limiting element on the locking cover, the switch handle can be locked even when rotated to different positions simply by setting the locking cover onto the locking base and locking it with the locking element. Therefore, it is compatible with various types of switch handles, has a wide range of applications, and can achieve 360° full-angle locking. It can lock any position according to the state of the switch handle and can be applied to installation in narrow spaces.

[0009] Furthermore, the locking cover is provided with at least one clearance hole for the switch handle to extend through. The clearance hole facilitates the extension of the switch handle and is suitable for use when the switch handle is long.

[0010] Furthermore, the first limiting member is a locking protrusion, and the second locking limiting block is a locking through hole or locking notch. When the locking cover is installed on the locking base, the locking protrusion on the locking base passes through the locking through hole or locking notch on the locking cover. The locking protrusion is provided with a locking hole for the locking member to pass through. Since the locking protrusion on the locking base passes through the locking through hole or locking notch on the locking cover, and the locking protrusion is provided with a locking hole for the locking member to pass through, locking can be completed simply by having the locking member pass through the locking hole, which is simple and convenient.

[0011] Furthermore, there is at least one locking protrusion. When there are two or more locking protrusions, the locking protrusions are evenly distributed on the locking base. Since there is at least one locking protrusion, different numbers of locking protrusions can be set as needed in actual applications, thereby facilitating the connection and fixation between the locking cover and the locking base.

[0012] Furthermore, the locking base and the first limiting member are an integral structure, and the locking top cover and the second limiting member are an integral structure. The integral locking base and the first limiting member, as well as the integral locking top cover and the second limiting member, can effectively simplify the structure of the locking base and the locking top cover.

[0013] Furthermore, the locking cover is equipped with an embedded magnet. With the embedded magnet, the locking cover can be directly attached and fixed to the operation panel of the switch cabinet. Then the switch handle can be operated. After the switch handle is operated, the locking can be completed again according to the locking steps.

[0014] Furthermore, the height of the first limiting member is lower than the height of the switch handle. Since the height of the first limiting member is lower than the height of the switch handle, the rotation of the switch handle will not cause it to collide with the first limiting member.

[0015] Furthermore, the locking cover is provided with a receiving cavity for placing the locking component. The locking cover and the receiving cavity are an integral structure. In practical applications, the locking cover can be provided with a receiving cavity for placing the locking component, so that the locking cover forms a structure similar to a locking cover, thereby facilitating the locking base to be locked.

[0016] Furthermore, the locking component can be a padlock, a lock pin, a lock cylinder, or an electronic lock. In practical applications, different locks can be used depending on the needs of the usage scenario, and these are all alternative solutions that are easily conceived by those skilled in the art.

[0017] Furthermore, the locking cover is made of transparent plastic material, which allows people to easily see the rotation scale and rotation status of the switch handle.

[0018] Compared with the prior art, the beneficial effects of the technical solution of the present invention are: The novel switch handle locking device disclosed in this invention features a locking base positioned on the outside of the switch handle, with a first limiting member on the locking base and a second limiting member on the locking cover. Therefore, even when the switch handle is rotated to different positions, simply placing the locking cover on the locking base and locking it with the locking member will lock the switch handle's position. This design allows for compatibility with various types of switch handles, a wide range of applications, and 360° omnidirectional locking. It enables locking at any position based on the switch handle's state and can be used for installation in confined spaces. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the novel switch handle locking device of the present invention, which is installed on the operation panel.

[0020] Figure 2 This is a schematic diagram of the switch handle locking device in this invention.

[0021] Figure 3 This is a schematic diagram of the switch handle locking device from another angle in this invention.

[0022] Figure 4 This is a schematic diagram of the structure of locking the front of the top cover in this invention.

[0023] Figure 5 This is a schematic diagram of the structure of the locking top cover back in this invention.

[0024] Figure 6 This is a schematic diagram of the structure in this invention where the locking base is located on the outside of the switch handle.

[0025] In the diagram, 1 is the locking cover, 2 is the locking component, 3 is the switch handle, 4 is the locking base, 5 is the first limiting component, 6 is the second limiting component, 7 is the clearance hole, 8 is the locking hole, 9 is the magnet, and 10 is the operation panel. Detailed Implementation

[0026] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0027] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The technical solution of this invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] like Figure 1-6As shown, a novel switch handle locking device includes a locking cover 1, a locking element 2, and a locking base 4 disposed on the outside of the switch handle 3. The locking base 4 is provided with a first limiting element 5, and the locking cover 1 is provided with a second limiting element 6 that matches the first limiting element 5. When the locking cover 1 is installed on the locking base 4, the first limiting element 5 on the locking base 4 engages with the second limiting element 6 on the locking cover 1. The locking element 2 locks the locking cover 1 onto the locking base 4. By placing the locking base 4 on the outside of the switch handle 3, and providing the first limiting element 5 on the locking base 4 and the second limiting element 6 on the locking cover 1, even if the switch handle 3 is rotated to different positions, simply placing the locking cover 1 on the locking base 4 and locking it with the locking element 2 will lock the state of the switch handle 3. Therefore, it is compatible with various types of switch handles 3, has a wide range of applications, and can achieve 360° omnidirectional locking. It can lock at any position according to the state of the switch handle 3 and can be applied to installation in narrow spaces.

[0029] In this invention, at least one clearance hole 7 is provided on the locking cover 1 for the switch handle 3 to extend through. The clearance hole 7 facilitates the extension of the switch handle 3, making it suitable for use when the switch handle 3 is long. The first limiting member 5 is a locking protrusion, and the second locking limiting block is a locking through hole or locking notch. When the locking cover 1 is installed on the locking base 4, the locking protrusion on the locking base 4 passes through the locking through hole or locking notch on the locking cover 1. The locking protrusion has a locking hole 8 for the locking member 2 to pass through. Because the locking protrusion on the locking base 4 passes through the locking through hole or locking notch on the locking cover 1, and the locking protrusion has a locking hole 8 for the locking member 2 to pass through, therefore, only... Locking can be completed by passing the locking member 2 through the locking hole 8, which is simple and convenient. In this invention, there is at least one locking protrusion. When there are two or more locking protrusions, the locking protrusions are evenly arranged on the locking base 4. Since there is at least one locking protrusion, different numbers of locking protrusions can be set as needed in actual application, which facilitates the connection and fixation between the locking cover 1 and the locking base 4. The locking base 4 and the first limiting member 5 are integrated structures, and the locking cover 1 and the second limiting member 6 are integrated structures. The integrated locking base 4 and the first limiting member 5, as well as the integrated locking cover 1 and the second limiting member 6, can effectively simplify the structure of the locking base 4 and the locking cover 1.

[0030] In this invention, an embedded magnet 9 is provided on the locking cover 1. Through the embedded magnet 9, the locking cover 1 can be directly attached and fixed to the operation panel 10 of the switch cabinet. Then, the switch handle 3 can be operated. After the switch handle 3 is operated, the locking process can be repeated. The height of the first limiting member 5 is lower than the height of the switch handle 3. Because the height of the first limiting member 5 is lower than the height of the switch handle 3, the rotation of the switch handle 3 will not collide with the first limiting member 5. Furthermore, a receiving cavity (not shown in the figure) for placing the locking member 2 can be provided on the locking cover 1. The locking cover 1 and... The receiving cavity is an integral structure. In practical applications, a receiving cavity for placing the locking element 2 can be provided on the locking cover 1, so that the locking cover 1 forms a structure similar to a locking cover, thereby facilitating the locking base 4 to be locked. In this invention, the locking element 2 is a padlock, a lock pin, a lock cylinder, or an electronic lock. In practical applications, the locking element 2 can be different locks depending on the needs of the usage scenario. These are all alternative solutions that are easy for a person skilled in the art to think of. The locking cover 1 is made of transparent plastic material. The locking cover 1 made of transparent plastic material can make it easy for people to see the rotation scale and rotation status of the switch handle 3. Example

[0031] In this embodiment, a locking protrusion is provided on the locking base, and a locking through hole or locking notch is provided on the locking cover to match the first limiting member. When the locking cover is installed on the locking base, the first limiting member on the locking base engages with the second limiting member on the locking cover, and the locking member locks the locking cover on the locking base. By setting the locking base on the outside of the switch handle and providing a locking protrusion on the locking base, and providing a locking through hole or locking notch on the locking cover, even if the switch handle is turned to different positions, the state of the switch handle can be locked simply by setting the locking cover on the locking base and locking it with the locking member. Therefore, it is compatible with various types of switch handles, has a wide range of applications, and can achieve 360° all-angle locking. It can lock any position according to the state of the switch handle and can be applied to installation in narrow spaces.

[0032] In addition, in practical applications, a receiving cavity can be provided in the locking cover, and the locking element can be placed in the receiving cavity, thereby setting the locking cover as a locking cover structure, which can also realize the locking function of the switch handle.

[0033] The positional relationships described in the figures are for illustrative purposes only and should not be construed as limiting this patent. Clearly, the above embodiments of the present invention are merely examples to clearly illustrate the invention and are not intended to limit the implementation of the invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of this invention.

Claims

1. A novel switch handle locking device, comprising a locking cover, a locking element, and a locking base disposed on the outside of the switch handle, characterized in that: The locking base is provided with a first limiting member, and the locking cover is provided with a second limiting member that matches the first limiting member. When the locking cover is installed on the locking base, the first limiting member on the locking base locks and positions the second limiting member on the locking cover. The locking element locks the top cover onto the locking base.

2. The novel switch handle locking device according to claim 1, characterized in that: The locking cover is provided with at least one clearance hole for the switch handle to pass through.

3. The novel switch handle locking device according to claim 1, characterized in that: The first limiting member is a locking protrusion, and the second locking limiting block is a locking through hole or a locking notch. When the locking cover is installed on the locking base, the locking protrusion on the locking base passes through the locking through hole or locking notch on the locking cover. The locking protrusion is provided with a locking hole for the locking member to pass through.

4. The novel switch handle locking device according to claim 3, characterized in that: There is at least one locking protrusion. When there are two or more locking protrusions, the locking protrusions are evenly distributed on the locking base.

5. The novel switch handle locking device according to claim 1, characterized in that: The locking base and the first limiting member are an integral structure, and the locking top cover and the second limiting member are an integral structure.

6. The novel switch handle locking device according to claim 1, characterized in that: The locking cover is equipped with an embedded magnet.

7. The novel switch handle locking device according to claim 1, characterized in that: The height of the first limiting member is lower than the height of the switch handle.

8. The novel switch handle locking device according to claim 1, characterized in that: The locking cover has a cavity for holding the locking component, and the locking cover and the cavity are an integral structure.

9. The novel switch handle locking device according to claim 1, characterized in that: The locking element is a padlock, a lock pin, a lock cylinder, or an electronic lock.

10. The novel switch handle locking device according to claim 1, characterized in that: The locking cover is made of transparent plastic material.

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