An operating mechanism capable of quickly adding a mechanical interlocking device

Abstract

The utility model belongs to the field of power supply equipment, and specifically relates to an operating mechanism that can be quickly equipped with a mechanical interlocking device, including a double-hole operating mechanism, on which a grounding gear shaft, a switch-on and switch-off gear shaft and a linkage gear shaft are installed, and the grounding gear shaft and the switch-on and switch-off gear shaft are linked through a linkage gear shaft that cooperates in the middle, and a baffle is installed on the linkage gear shaft, and the baffle rotates with the rotation of the linkage gear shaft, and when the grounding gear shaft is in the grounding closing state, the baffle blocks the switch-on and switch-off gear shaft; when the switch gear shaft is in the switch closing state, the baffle blocks the grounding gear shaft. The utility model can realize the rapid installation of a mechanical interlocking device, can effectively prevent misoperation, and has high safety of the switch equipment. In a multi-unit, multi-level ring network configuration, the interlocking function can be realized by connecting the upper and lower interlocking keys in series.

Description

Technical Field

[0001] The utility model belongs to the field of power supply equipment, and in particular relates to an operating mechanism capable of quickly adding a mechanical interlocking device. Background Art

[0002] The ring network switch cabinet is one of the main equipment used for ring network power supply, and the safety of its operation process is particularly important; the medium-voltage ring network cabinet disconnector and load switch operating mechanism currently used generally adopts a double-hole operating mechanism, and the load switch drive shaft and the grounding switch drive shaft are interlocked by gear linkage, thereby meeting the daily requirement of "preventing live earthing knife". In medium-voltage ring network cabinet equipment, a slide plate is generally used to cover the load switch operating hole and disconnector operating hole to achieve interlocking between cabinets and interlocking between box transformers. This method is not effective, has simple functions, and is prone to misoperation. Especially in large-scale photovoltaic, wind power and other projects with many upper and lower interlocking requirements, electrical misoperation accidents are prone to occur, electric shock accidents occur during maintenance, the safety of switch equipment is low, and the safety of maintenance personnel is low. Utility Model Content

[0003] The utility model aims to provide a novel double-hole mechanism which can realize rapid installation of a mechanical interlocking device, effectively prevent misoperation and has high safety for switch equipment.

[0004] An operating mechanism to which a mechanical interlocking device can be quickly added comprises a double-hole operating mechanism, on which a grounding gear shaft, an opening and closing gear shaft and a linkage gear shaft are installed, the grounding gear shaft and the opening and closing gear shaft are linked via a linkage gear shaft that fits in the middle, a baffle is installed on the linkage gear shaft, the baffle rotates with the rotation of the linkage gear shaft, when the grounding gear shaft is in the grounding closing state, the baffle blocks the opening and closing gear shaft; when the switch gear shaft is in the switch closing state, the baffle blocks the grounding gear shaft.

[0005] Furthermore, the grounding gear shaft and the opening and closing gear shaft are both rotated by an operating handle, a flat key is provided on the operating handle, and limiting grooves are provided on the grounding gear shaft and the opening and closing gear shaft. The operating handle realizes the operation of the grounding gear shaft or the opening and closing gear shaft through the cooperation of the flat key and the limiting groove.

[0006] Furthermore, mechanical locks are provided on the outer sides of the grounding gear shaft and the opening and closing gear shaft, and interlocking grooves are provided on the grounding gear shaft and the opening and closing gear shaft. The mechanical lock includes a retractable mechanical lock rod, and the mechanical lock rod cooperates with the interlocking groove to lock the grounding gear shaft or the opening and closing gear shaft, and when the mechanical lock rod is extended and inserted into the interlocking groove, the flat key on the operating handle cannot be inserted into the limiting groove of the grounding gear shaft or the opening and closing gear shaft corresponding to the interlocking groove.

[0007] Furthermore, the mechanical lock controls the extension and retraction of the mechanical lock rod by means of a key.

[0008] Furthermore, when the mechanical lock rod of the mechanical lock is in an extended state, the key can be pulled out; when the mechanical lock rod of the mechanical lock is in a retracted state, the key cannot be pulled out.

[0009] Beneficial effects:

[0010] The operating mechanism capable of quickly adding a mechanical interlocking device described in the utility model can realize the rapid installation of a mechanical interlocking device, can effectively prevent misoperation, and has high switch equipment safety. In a multi-unit, multi-level ring network configuration, the interlocking function can be realized by connecting the upper and lower interlocking keys in series. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a front view of the operating mechanism of the utility model that can be quickly equipped with a mechanical interlocking device;

[0012] Figure 2 This is a diagram of the operating components of the double-hole mechanism of the utility model;

[0013] Figure 3 This is a diagram showing the coordination of the operating components of the double-hole mechanism of the utility model;

[0014] Figure 4.1 This is a schematic diagram of the unlocked state of the mechanical lock of the double-hole mechanism of the utility model;

[0015] Figure 4.2 This is a schematic diagram of the locked state of the mechanical lock of the double-hole mechanism of the utility model;

[0016] Figure 5 It is a schematic diagram of the mechanical locking function of the double-hole mechanism of the utility model.

[0017] Among them, double-hole operating mechanism-1; grounding gear shaft-2; opening and closing gear shaft-3; mechanical lock-4; mechanical lock rod-4.2; key-5; operating handle 6; interlocking slot-7; limit slot-8; flat key-9, baffle-10. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. The preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0019] like Figure 1-4.2As shown, the operating mechanism that can be quickly equipped with a mechanical interlocking device includes a double-hole operating mechanism 1, on which a grounding gear shaft 2, a switching gear shaft 3 and a linkage gear shaft are installed. The grounding gear shaft 2 and the switching gear shaft 3 are linked through a linkage gear shaft that fits in the middle. When the operating handle 6 is inserted into the grounding gear shaft 2 and rotated, the grounding gear shaft 2 is linked with the switching gear shaft 3 through the linkage gear shaft; when the operating handle 6 is inserted into the switching gear shaft 3, the switching gear shaft 3 is linked with the grounding gear shaft 2 through the linkage gear shaft. A baffle 10 is also installed on the linkage gear shaft, which rotates with the rotation of the linkage gear shaft, as shown in FIG. Figure 5 As shown, when the grounding gear shaft 2 is in the grounding closing state, the baffle 10 blocks the opening and closing gear shaft 3 to prevent the switch closing operation from being performed; when the switch gear shaft 3 is in the switch closing state, the baffle 10 blocks the grounding gear shaft 2 to prevent the grounding closing operation from being performed. The present invention realizes the interlocking of the grounding switch and the load switch operation by means of gear linkage and baffle shielding, meeting the requirement of "preventing the earthing knife from being energized". Mechanical locks 4 are provided on the outside of the grounding gear shaft 2 and the opening and closing gear shaft 3. The grounding gear shaft 2 and the opening and closing gear shaft 3 are milled with limit grooves 8 and interlocking grooves 7, and the position of the interlocking groove 7 on the gear shaft matches the corresponding mechanical lock 4.

[0020] The mechanical lock 4 includes a retractable mechanical lock rod 4.2, which is used in conjunction with the interlocking grooves 7 on the grounding gear shaft 2 and the opening and closing gear shaft 3; the head of the operating handle 6 is provided with a flat key 9, which is used in conjunction with the limiting grooves 8 on the grounding gear shaft 2 and the opening and closing gear shaft 3.

[0021] The mechanical lock rod 4.2 in the mechanical lock 4 is controlled by a key 5. When the operating mechanism of the mechanical interlocking device that can be quickly installed is in an unlocked state, the flat key 9 on the head of the operating handle 6 is engaged with the limit groove 8 of the grounding gear shaft 2. When the operating handle 6 rotates, the operating handle 6 drives the grounding gear shaft 2 to rotate, and the grounding gear shaft 2 drives the linkage gear shaft to rotate, thereby driving the opening and closing gear shaft 3 to be linked, and synchronous locking and opening and closing are achieved; until the grounding gear shaft interlocking groove 7 rotates to correspond to the position of the mechanical lock rod 4.2, at this time, the mechanical lock rod is inserted into the grounding gear shaft interlocking groove 7 by inserting the key 5 on one side of the grounding gear shaft, and the grounding gear shaft is in a locked state due to the engagement of the lock rod and the interlocking groove, and when the mechanical lock rod 4.2 is inserted into the grounding gear shaft interlocking groove, the lock rod pushes out the flat key of the operating handle, and the flat key on the head of the operating handle can no longer drive the grounding gear shaft to operate. At this time, the operating mechanism of the mechanical interlocking device that can be quickly installed is in a locked state. When the operating mechanism of the mechanical interlocking device that can be quickly installed is in a locked state, the lock rod 4.2 of the mechanical lock is in an extended state, and the key 5 can be pulled out; when the operating mechanism of the mechanical interlocking device that can be quickly installed is in an unlocked state, the lock rod 4.2 of the mechanical lock is in a retracted state, and the key 5 cannot be pulled out. Similarly, when the operating handle 6 is inserted into the grounding gear shaft 2, locking can also be achieved by inserting the key 5 on one side of the opening and closing gear shaft 3; when the operating handle 6 is inserted into the opening and closing gear shaft 3, locking can be achieved by inserting the key 5 on one side of the grounding gear shaft 2 or the opening and closing gear shaft 3. In this way, the locking of the opening and closing position of the device, the locking of the grounding position, and the locking of the closing position can be achieved through the mechanical locks 4 respectively arranged at both ends of the grounding gear shaft 2 and the opening and closing gear shaft 3. Through this structure, in a multi-unit, multi-level ring network configuration, the interlocking function can be achieved by connecting the upper and lower interlocking keys in series ("two locks and one key", "three locks and two keys") mode. Interlocking principle: By connecting interlocking keys in series, or using two lock cylinders to share a key, when you want to operate a switch, you must lock one of the switches before you can pull out the interlocking key to operate the other switch, thereby realizing the interlocking function between multiple switch cabinets.

Claims

1. An operating mechanism that can be quickly equipped with a mechanical interlocking device, characterized in that It comprises a double-hole operating mechanism, on which a grounding gear shaft, an opening and closing gear shaft and a linkage gear shaft are installed. The grounding gear shaft and the opening and closing gear shaft are linked via a linkage gear shaft that fits in the middle. A baffle is installed on the linkage gear shaft, and the baffle rotates with the rotation of the linkage gear shaft. When the grounding gear shaft is in the grounding and closing state, the baffle blocks the opening and closing gear shaft; when the switch gear shaft is in the switch closing state, the baffle blocks the grounding gear shaft.

2. The operating mechanism capable of quickly adding a mechanical interlocking device according to claim 1, characterized in that The grounding gear shaft and the opening and closing gear shaft are both rotated by an operating handle, on which a flat key is provided, and on which limiting grooves are provided. The operating handle realizes the operation of the grounding gear shaft or the opening and closing gear shaft through the cooperation of the flat key and the limiting groove.

3. The operating mechanism capable of quickly adding a mechanical interlocking device according to claim 2, characterized in that: Mechanical locks are provided on the outer sides of the grounding gear shaft and the opening and closing gear shaft, and interlocking grooves are provided on the grounding gear shaft and the opening and closing gear shaft. The mechanical lock includes a retractable mechanical lock rod, and the mechanical lock rod cooperates with the interlocking groove to lock the grounding gear shaft or the opening and closing gear shaft, and when the mechanical lock rod is extended and inserted into the interlocking groove, the flat key on the operating handle cannot be inserted into the limiting groove of the grounding gear shaft or the opening and closing gear shaft corresponding to the interlocking groove.

4. The operating mechanism capable of quickly adding a mechanical interlocking device according to claim 3, characterized in that: The mechanical lock controls the extension and retraction of the mechanical lock rod through a key.

5. The operating mechanism capable of quickly adding a mechanical interlocking device according to claim 4, characterized in that: When the mechanical lock rod of the mechanical lock is in an extended state, the key can be pulled out; when the mechanical lock rod of the mechanical lock is in a retracted state, the key cannot be pulled out.

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