Locking device of fence double-leaf door of high-voltage electrical device

Abstract

The utility model discloses a locking device for a fence double-leaf door of a high-voltage electrical device, which relates to the field of high-voltage electrical devices and comprises a pair of net door upright posts, a pair of door spindles are mounted on each of the net door upright posts, and a first net door and a second net door are mounted on the net door upright posts through the door spindles. The first net door is provided with a door leaf baffle, the upper ends of the pair of net door stand columns are jointly provided with an upper cross beam, the upper cross beam is provided with travel switches, and the travel switches are further connected with a cable. The locking and signal feedback functions of the fence double-leaf net door of the high-voltage electrical device can be realized by using the single stroke switch and the door leaf baffle plate, the price of the door leaf baffle plate is far lower than that of the stroke switch, the cost is low, electrical contacts are fewer and are only half of that when two stroke switches are used, and the electrical fault probability is lower.

Description

Technical Field

[0001] The utility model is applicable to the field of high-voltage electrical devices, and specifically relates to a locking device for double-leaf doors of a high-voltage electrical device fence. Background Art

[0002] Electrical interlocking is achieved by connecting the auxiliary contacts of devices such as circuit breakers, disconnectors, earthing switches, and fence net doors to the operating power supply circuit of relevant electrical equipment. It is widely used in electrically operated equipment to ensure the safety of electric operation. When double-leaf net doors are used for the fence of high-voltage electrical devices, two travel switches are configured for the double-leaf net doors. Each travel switch needs to be connected to an 8-core cable. Firstly, the cost is relatively high and the economy is poor. Secondly, as the number of electrical nodes increases, the probability of electrical faults becomes larger, the wiring method is complex, operation and maintenance are difficult, and there are more auxiliary contacts in series. Content of the Utility Model

[0003] To solve the above problems, that is, to solve the problems raised in the above background art, the utility model patent proposes a locking device for double-leaf doors of a high-voltage electrical device fence, which includes a pair of net door columns. A pair of door shafts are installed on each of the pair of net door columns. A first net door and a second net door are installed on the pair of net door columns through the door shafts. A door leaf baffle is installed on the first net door. An upper cross beam is jointly installed at the upper ends of the pair of net door columns. A travel switch is installed on the upper cross beam, and the travel switch is also connected to a cable.

[0004] The further setting of the utility model patent is that: the travel switch includes a housing, and an operating head and a contact are installed inside the housing.

[0005] The further setting of the utility model patent is that: the door leaf baffle is installed at the upper end of one side of the first net door.

[0006] The further setting of the utility model patent is that: the door leaf baffle is made of a durable steel material.

[0007] The beneficial technical effect of the utility model patent is that: this application uses a mechanical + electrical interlocking form, and a total of 1 door leaf baffle + 1 travel switch are configured, which can realize the locking and feedback signal functions of the double-leaf net doors of the high-voltage electrical device fence. Using 1 travel switch + 1 door leaf baffle, the price of the door leaf baffle is much lower than that of the travel switch, the cost is low, and there are fewer electrical contacts, only half of that when using two travel switches, and the probability of electrical faults is lower. Description of the Drawings

[0008] Figure 1 It is a schematic structural diagram of the utility model;

[0009] Figure 2 It is a top view of the utility model;

[0010] Figure 3 Schematic diagram of the travel switch described in the present utility model.

[0011] Reference numerals: 1, gate post; 2, door hinge; 3, travel switch; 4, first gate; 5, door leaf baffle; 6, second gate; 7, upper crossbeam; 8, operating head; 9, contact; 10, housing. Specific embodiments

[0012] The following refers to the attached Figures 1-3 to describe the preferred embodiments of the patent of the present utility model. Those skilled in the art should understand that these embodiments are only used to explain the technical principle of the patent of the present utility model and are not intended to limit the protection scope of the patent of the present utility model.

[0013] The patent of the present utility model proposes a locking device for a double-leaf door of a high-voltage electrical device fence, which includes a pair of gate posts 1. A pair of door hinges 2 are installed on each of the pair of gate posts 1. A first gate 4 and a second gate 6 are installed on the pair of gate posts 1 through the door hinges 2. A door leaf baffle 5 is installed on the first gate 4. An upper crossbeam 7 is jointly installed at the upper ends of the pair of gate posts 1. A travel switch 3 is installed on the upper crossbeam 7. The travel switch 3 is also connected with a cable; the travel switch 3 includes a housing 10, and an operating head 8 and a contact 9 are installed in the housing 10; the door leaf baffle 5 is installed at the upper end of one side of the first gate 4; the door leaf baffle 5 is made of a steel durable material.

[0014] The gate post 1 is fixedly welded to the embedded foundation of the high-voltage electrical device peripheral fence. The gate uses the door hinge 2 to open outwards. The travel switch 3 is fixed on the upper crossbeam 7 of the gate. The double-leaf gates are the first gate 4 and the second gate 6 respectively. The door leaf baffle 5 is fixedly welded to the first gate 4. The door leaf baffle 5 is made of a steel durable material.

[0015] When the gate changes from the closed state to the open state, due to the effect of the door leaf baffle 5, only the first gate 4 can be opened first. The operating head 8 of the travel switch 3 is released, and the switching state of the internal contact 9 changes, realizing electrical locking. At the same time, a feedback action signal - the gate is opened is sent, and then the second gate 6 is opened, and this process ends.

[0016] When the gate changes from the open state to the closed state, due to the effect of the door leaf baffle 5, only the second gate 6 can be closed first, and then the first gate 4 is closed. The operating head 8 of the travel switch 3 is pressed, and the switching state of the internal contact 9 changes, realizing electrical locking. At the same time, a feedback action signal - the gate is closed is sent, and this process ends.

[0017] In the above operation process, through the action of the door leaf baffle 5, the control of the door opening and closing sequence is realized, and through the action of the travel switch 3, the electrical interlock and the feedback of the net door state signal are realized. Thus, by using the mechanical + electrical interlock form, that is, by configuring 1 door leaf baffle 5 + 1 travel switch 3, the form of setting travel switches for both double-leaf net doors can be completely replaced.

[0018] Although the patent of the present utility model has been described with reference to the preferred embodiments, various improvements can be made to it and the components therein can be replaced with equivalents without departing from the scope of the patent of the present utility model. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way. The patent of the present utility model is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

[0019] In the description of the patent of the present utility model, the terms indicating directions or position relationships such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or position relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the patent of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0020] In addition, it should be noted that in the description of the patent of the present utility model, unless otherwise clearly specified and limited, the terms "installation", "connection", "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 or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the patent of the present utility model can be understood according to specific situations.

[0021] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, so that a process, article, or device / equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes the elements inherent in these processes, articles, or devices / equipment.

[0022] So far, the technical solution of the utility model patent has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easily understood by those skilled in the art that the protection scope of the utility model patent is obviously not limited to these specific embodiments. Without departing from the principle of the utility model patent, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the utility model patent.

Claims

1. A locking device for a double-leaf door of a high-voltage electrical device fence, comprising a pair of mesh door posts (1), characterized in that: A pair of door shafts (2) are installed on each of the pair of net door columns (1); a first net door (4) and a second net door (6) are installed on the pair of net door columns (1) through the door shafts (2); a door leaf baffle (5) is installed on the first net door (4); an upper crossbeam (7) is installed on the upper ends of the pair of net door columns (1); a travel switch (3) is installed on the upper crossbeam (7); and the travel switch (3) is also connected to a cable.

2. A locking device for double-leaf doors of a high-voltage electrical device fence according to claim 1, characterized in that: The travel switch (3) comprises a housing (10), in which an operating head (8) and a contact (9) are installed.

3. The locking device for double-leaf doors of a high-voltage electrical device fence according to claim 1, characterized in that: The door leaf baffle (5) is installed on an upper end of one side of the first mesh door (4).

4. The locking device for double-leaf doors of a high-voltage electrical device fence according to claim 1, characterized in that: The door leaf baffle (5) is made of durable steel material.

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