Operating handle and ring main unit

Abstract

The utility model discloses an operating handle and a ring main unit, the operating handle is used in cooperation with the ring main unit with a mounting cavity on the surface, the operating handle comprises an operating rod and a lever, and an anti-rotation clamping groove is formed on the operating rod in a penetrating manner in a direction perpendicular to the length direction of the operating rod; the section of the anti-rotation clamping groove is polygonal; a first through hole is formed in the operating rod in the length direction of the operating rod in a penetrating mode. The outer diameter of the operating rod is smaller than the inner diameter of the mounting cavity; the section, perpendicular to the length direction of the lever, of the lever is matched with the anti-rotation clamping groove. A first operating head is arranged at one end of the lever along the length direction of the lever; when the operating handle is in a storage state, the lever is inserted into the first through hole in a clearance fit manner; when the operating handle is in a using state, the lever penetrates through the anti-rotation clamping groove in a clearance fit and inserted mode. The size of the operating handle in a storage state can be reduced, and the occupied installation space of a ring main unit is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, in particular to an operating handle and a ring network cabinet. Background Art

[0002] Ring main unit is a set of electrical equipment with high voltage switchgear installed in metal or non-metal insulated cabinet or assembled into interval ring main unit. Its core part adopts load switch and fuse, which has the advantages of simple structure, small size, low price, improved power supply parameters and performance, and power supply safety. It is widely used in distribution stations and box-type substations in urban residential areas, high-rise buildings, large public buildings, factories and enterprises and other load centers.

[0003] An isolating switch is usually provided in the ring main unit, and an operating handle is provided on the ring main unit; when a fault occurs in the ring main unit, the operating handle needs to be used to connect to the isolating switch in the ring main unit, and the isolating switch is disconnected through the operating handle so as to carry out emergency repairs on the ring main unit.

[0004] Most of the existing operating handles have large structural dimensions, are not convenient for storage in the installation cavity of the ring network cabinet, and occupy the installation space of the ring network cabinet. Utility Model Content

[0005] Therefore, the technical problem to be solved by the utility model is to overcome the defects in the prior art that the operating handle is not convenient to be stored in the installation cavity of the ring network cabinet and occupies the installation space of the ring network cabinet, thereby providing an operating handle and a ring network cabinet.

[0006] According to the first aspect of the present invention, an operating handle is provided, which is used in conjunction with a ring main unit having an installation cavity on its surface. The operating handle comprises:

[0007] The operating rod is provided with an anti-rotation slot perpendicular to the length direction of the operating rod; the cross section of the anti-rotation slot is polygonal; a first through hole is formed on the operating rod along the length direction of the operating rod; the outer diameter of the operating rod is smaller than the inner diameter of the mounting cavity;

[0008] A lever, wherein a cross section perpendicular to the length direction of the lever is adapted to the anti-rotation slot; a first operating head is provided at one end of the lever along the length direction of the lever;

[0009] When the operating handle is in the storage state, the lever is inserted into the first through hole with clearance fit;

[0010] When the operating handle is in use, the lever is inserted through the anti-rotation slot with clearance fit.

[0011] An operating handle according to the utility model has at least the following technical effects:

[0012] 1. By setting the outer diameter of the lever to be smaller than the inner diameter of the first through hole, and the outer diameter of the operating rod to be smaller than the inner diameter of the installation cavity, when the operating handle needs to be stored, the lever can be hidden and inserted into the first through hole with a clearance fit, so that the operating handle is combined to form a straight line structure arranged parallel to the length direction of the operating rod, reducing the size of the operating handle in the storage state, thereby facilitating the storage and hidden installation of the operating handle in the installation cavity of the ring network cabinet and reducing the installation space occupied by the ring network cabinet.

[0013] 2. By connecting the lever to the anti-rotation slot, it is convenient to quickly assemble the lever in the anti-rotation slot, so that the operating handle can be quickly switched to the use state to operate the disconnect switch to open or close, thereby improving the efficiency of repairing the ring network cabinet; it is also convenient to remove the lever from the anti-rotation slot, so that the operating handle can be quickly switched to the storage state, thereby improving the efficiency of hiding the operating handle in the installation cavity of the ring network cabinet.

[0014] Preferably, a second operating head is provided at one end of the lever away from the first operating head along the length direction of the lever; the first operating head and the second operating head are respectively used to operate two isolating switches of different models and specifications;

[0015] And / or, the anti-rotation slot is a square slot with a square cross-section, and the lever is a column with a cross-section matching the square slot;

[0016] And / or, the anti-rotation slot is located on a side of the operating rod that deviates from the center of the operating rod along the length direction of the operating rod;

[0017] And / or, a third operating head is provided at one end of the operating rod along the length direction of the operating rod, the interior of the third operating head is communicated with the first through hole along the length direction of the operating rod, and the lever can be loosely fitted inside the third operating head; the first operating head and the third operating head are respectively used to operate two different types and specifications of disconnectors;

[0018] And / or, the outer periphery of the operating rod is sleeved with an insulating tube, and the insulating tube is provided with a through slot at a position corresponding to the anti-rotation slot; when the operating handle is in use, the lever passes through the through slot with clearance fit;

[0019] And / or, an insulating sleeve is provided inside the anti-rotation slot.

[0020] Preferably, the outer diameter of the first operating head is larger than the inner diameter of the anti-rotation slot, and the first operating head is detachably connected to the lever;

[0021] And / or, the outer diameter of the second operating head is larger than the inner diameter of the anti-rotation slot, and the second operating head is detachably connected to the lever;

[0022] And / or, the third operating head is detachably connected to a fourth operating head at one end away from the operating rod along the length direction of the operating rod, and the first operating head, the third operating head and the fourth operating head are respectively used to operate three different types and specifications of disconnectors;

[0023] And / or, the insulating tube can be slidably mounted on the operating rod along the length direction of the operating rod, a spring is disposed on the outer sleeve of the operating rod, the spring is arranged along the length direction of the operating rod, two ends of the spring respectively abut against the end surfaces of the insulating tube and the third operating head facing each other; when the operating handle is in use, the through groove is aligned with the anti-rotation slot, and the spring is in a compressed force storage state.

[0024] Preferably, a first internal threaded hole is provided in the end surface of the first operating head facing the lever, and a first external threaded portion is provided on the outer peripheral surface of one end of the lever facing the first operating head, and the first external threaded portion matches the first internal threaded hole;

[0025] And / or, a second internal threaded hole is provided in the end surface of the second operating head facing the lever, and a second external threaded portion is provided on the outer peripheral surface of one end of the lever facing the second operating head, and the second external threaded portion matches the second internal threaded hole;

[0026] And / or, one end of the fourth operating head facing the third operating head is loosely fitted and inserted into the interior of the third operating head; a third internal threaded hole is provided on the side wall of the third operating head perpendicular to the length direction of the operating rod, and the third internal threaded hole is connected to the interior of the third operating head; when the third operating head is assembled and connected with the fourth operating head, the first fastening bolt is threadedly connected in the third internal threaded hole, and the tip is tightened against the outer wall of the fourth operating head.

[0027] Preferably, a connecting column is provided at one end of the fourth operating head facing the third operating head, the connecting column is inserted into the first through hole with clearance fit, a first annular groove is concavely provided on the outer circumferential surface of the connecting column, an elastic snap ring is embedded in the first annular groove, the outer diameter of the elastic snap ring is larger than the inner diameter of the first through hole, and a second annular groove is concavely provided on the inner wall of the first through hole corresponding to the position of the first annular groove; when the third operating head and the fourth operating head are assembled and connected, the elastic snap ring is embedded between the first annular groove and the second annular groove;

[0028] And / or, the inner wall of the third operating head is recessed with a mounting arc groove, and the mounting arc groove is arranged circumferentially around the length direction of the operating rod; the outer circumference of the operating rod is convexly provided with an arc key at a position corresponding to the mounting arc groove, and the arc key is arranged circumferentially around the length direction of the operating rod, the arc key has an arc smaller than the arc of the mounting arc groove, and the arc key is rotatably connected in the mounting arc groove.

[0029] Preferably, the third operating head is provided with a key groove in an inner wall along the length direction of the operating rod toward one end of the operating rod; the key groove is arranged parallel to the length direction of the operating rod, one end of the key groove is communicated with the mounting arc groove, and the other end passes through the third operating head along the length direction of the operating rod; the key groove is used for the arc-shaped card key to movably pass through;

[0030] And / or, an arc-shaped bearing is provided in the mounting arc groove, and the arc-shaped bearing is arranged circumferentially around the length direction of the operating rod; the outer diameter of the arc-shaped key is larger than the inner diameter of the arc-shaped bearing, and the sum of the curvature of the arc-shaped key and the curvature of the arc-shaped bearing is smaller than the curvature of the mounting arc groove; the operating rod is rotatably connected in the arc-shaped bearing.

[0031] Preferably, the outer peripheral surface of the arc-shaped bearing is provided with at least one fourth internal threaded hole, and the fourth internal threaded hole is arranged in a direction perpendicular to the length direction of the operating rod; the side wall of the third operating head is provided with a second through hole at a position corresponding to the fourth internal threaded hole, and the second through hole passes through the side wall of the third operating head in parallel with the fourth internal threaded hole; when the arc-shaped bearing is assembled and connected in the mounting arc groove, the second fastening bolt passes through the second through hole and is threadedly connected in the fourth internal threaded hole.

[0032] Preferably, the insulating tube can be connected to the operating rod rotatably around the length direction of the operating rod, and the inner wall of the end of the insulating tube away from the third operating head is evenly distributed with multiple bosses along the circumferential direction; the outer circumference of the end of the operating rod away from the third operating head is convexly provided with a round table, and the upper edge of the round table is evenly distributed with the same number of through grooves as the bosses in the circumferential direction, and the through grooves penetrate the round table along the length direction of the operating rod and match the bosses; when the insulating tube is assembled on the operating rod, the boss abuts against the end face of the round table along the length direction of the operating rod facing the third operating head, and the spring is in a compressed force storage state.

[0033] According to the second aspect of the utility model, a ring main unit is provided, comprising a cabinet body and an operating handle, wherein the operating handle adopts the operating handle provided by the first aspect; an installation cavity is arranged on the front side wall of the cabinet body along the length direction of the operating rod; when the operating handle is in the storage state, the operating rod is loosely fitted and embedded in the installation cavity.

[0034] A ring main unit according to the utility model has at least the following technical effects:

[0035] 1. By setting the outer diameter of the lever in the operating handle to be smaller than the inner diameter of the first through hole, and the outer diameter of the operating rod is smaller than the inner diameter of the installation cavity, when the operating handle needs to be stored, the lever can be hidden and inserted into the first through hole with a clearance fit, so that the operating handle is combined to form a straight line structure arranged parallel to the length direction of the operating rod, reducing the size of the operating handle in the storage state, thereby facilitating the storage and hidden embedding of the operating handle in the installation cavity of the ring network cabinet, and reducing the installation space occupied by the ring network cabinet.

[0036] 2. By connecting the lever in the operating handle to the anti-rotation slot, it is convenient to quickly assemble the lever in the anti-rotation slot, so that the operating handle can be quickly switched to the use state to operate the disconnect switch for opening or closing, thereby improving the efficiency of repairing the ring network cabinet; it is also convenient to remove the lever from the anti-rotation slot, so that the operating handle can be quickly switched to the storage state, thereby improving the efficiency of hiding the operating handle in the installation cavity of the ring network cabinet.

[0037] Preferably, the front side wall of the cabinet is provided with an elastic clamping portion, and the elastic clamping portion is located at the upper end of the mounting cavity along the length direction of the lever; an open slot is provided at one end of the elastic clamping portion away from the cabinet, and the open slot has an expanded open state and a reset initial state;

[0038] When the opening slot is in the expanded state, the lever is interference-fitted in the opening slot;

[0039] When the opening slot is in the initial state, the opening size of the opening slot is smaller than the outer diameter of the lever.

[0040] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0042] Figure 1 This is a three-dimensional structural schematic diagram of an operating handle of this embodiment in a use state;

[0043] Figure 2for Figure 1 Schematic diagram of the decomposition structure;

[0044] Figure 3 for Figure 1 A schematic diagram of a main structure in cross-section;

[0045] Figure 4 for Figure 3 The enlarged schematic diagram of point A in the middle;

[0046] Figure 5 This is a schematic diagram of the three-dimensional structure of an operating handle of this embodiment in a storage state;

[0047] Figure 6 is a schematic structural diagram of a fourth operating head in an operating handle of this embodiment;

[0048] Figure 7 is a schematic structural diagram of an operating rod in an operating handle of this embodiment;

[0049] Figure 8 This is a schematic structural diagram of an insulating tube in an operating handle of this embodiment;

[0050] Fig. 9 is a schematic structural diagram of a third operating head in an operating handle of this embodiment;

[0051] Fig.10 This is a schematic diagram of the structure of a ring main unit of this embodiment equipped with an operating handle in a storage state;

[0052] Fig.11 for Fig.10 The enlarged schematic diagram of point B in the middle;

[0053] Fig.12 This is a schematic diagram of the structure of a ring main unit of this embodiment equipped with an operating handle in use;

[0054] Fig.13 for Fig.12 Enlarged schematic diagram of point C in the middle.

[0055] Description of reference numerals:

[0056] 1-operating handle, 11-operating rod, 111-anti-rotation groove, 112-first through hole, 1121-second annular groove, 113-third operating head, 1131-installing arc groove, 1132-key groove, 1133-second through hole, 114-fourth operating head, 1141-connecting column, 1142-first annular groove, 1143-elastic snap ring, 115-arc-shaped key, 116-round table, 1161-through groove, 12-lever, 121-first operating head, 122-second operating head, 13-insulating tube, 131-through groove, 132-boss, 14-insulating sleeve, 15-spring, 161-first fastening bolt, 162-arc-shaped bearing, 1621-fourth internal threaded hole, 163-second fastening bolt;

[0057] 2-cabinet body, 21-installation cavity, 22-elastic clamping part. DETAILED DESCRIPTION

[0058] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0059] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0060] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" 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 or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0061] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0062] Embodiment 1

[0063] like Figures 1 to 7 The figure shows an operating handle provided in the present embodiment, which is used for use with a ring main unit having a mounting cavity 21 on its surface. The operating handle 1 includes an operating rod 11 and a lever 12. An anti-rotation slot 111 is formed on the operating rod 11 perpendicular to the length direction of the operating rod 11; the cross section of the anti-rotation slot 111 is polygonal; a first through hole 112 is formed on the operating rod 11 along the length direction of the operating rod 11; the outer diameter of the operating rod 11 is smaller than the inner diameter of the mounting cavity 21; the cross section of the lever 12 perpendicular to the length direction of the lever 12 is adapted to the anti-rotation slot 111; a first operating head 121 is provided at one end of the lever 12 along the length direction of the lever 12; when the operating handle 1 is in the storage state, the lever 12 is inserted into the first through hole 112 with a clearance fit; when the operating handle 1 is in use, the lever 12 is inserted through the anti-rotation slot 111 with a clearance fit. It can be understood that the length direction of the operating rod 11 in the present embodiment refers to Figure 1 or Figure 2 The length direction of the lever 12 in this embodiment refers to Figure 1 or Figure 2 The second direction in .

[0064] The operating handle of this embodiment is configured such that the outer diameter of the lever 12 is smaller than the inner diameter of the first through hole 112, and the outer diameter of the operating rod 11 is smaller than the inner diameter of the installation cavity 21. When the operating handle 1 of this embodiment needs to be stored, the lever 12 can be hidden and inserted into the first through hole 112 with a clearance fit, thereby combining the operating handle 1 of this embodiment to form a straight line structure arranged parallel to the length direction of the operating rod 11, reducing the size of the operating handle 1 of this embodiment in the storage state, thereby facilitating the storage and hidden installation of the operating handle 1 of this embodiment in the installation cavity 21 of the ring network cabinet, and reducing the installation space occupied by the ring network cabinet. By clamping the lever 12 in the anti-rotation slot 111, it is convenient to quickly assemble the lever 12 in the anti-rotation slot 111, so that the operating handle 1 of this embodiment can be quickly switched to the use state to operate the disconnect switch to open or close the switch, thereby improving the efficiency of repairing the ring network cabinet; it is also convenient to remove the lever 12 from the anti-rotation slot 111, so that the operating handle 1 of this embodiment can be quickly switched to the storage state, thereby improving the efficiency of storing the operating handle 1 of this embodiment in the installation cavity 21 of the ring network cabinet.

[0065] like Figures 1 to 3As shown, in some embodiments of the utility model, a second operating head 122 is provided at one end of the lever 12 away from the first operating head 121 along the length direction of the lever 12, and the first operating head 121 and the second operating head 122 are respectively used to operate two different models and specifications of disconnectors to open or close the circuit breaker, which has more comprehensive functions and improves the maintenance efficiency of more complex ring network cabinets.

[0066] Specifically, the anti-rotation slot 111 is a square slot with a square cross section, and the lever 12 is a column with a cross section that matches the square slot. This arrangement has a simple structure and is easy to process and form, and the four outer walls of the lever 12 and the four inner walls of the anti-rotation slot 111 are pressed against each other to achieve position limiting and torque transmission, ensuring that the lever 12 and the operating rod 11 can rotate synchronously.

[0067] In some embodiments of the utility model, the outer diameter of the first operating head 121 is larger than the inner diameter of the anti-rotation slot 111, and the first operating head 121 is detachably connected to the lever 12. By detachably connecting the first operating head 121 to the lever 12, on the one hand, it is convenient to remove the first operating head 121 for replacement or repair; on the other hand, it is convenient to remove the lever 12 from the anti-rotation slot 111 and insert it into the first through hole 112 with clearance fit, so that the operating handle 1 of this embodiment can be quickly switched to the storage state, improving the efficiency of storing the operating handle 1 of this embodiment in the installation cavity 21 of the ring network cabinet; at the same time, by setting the outer diameter of the first operating head 121 larger than the inner diameter of the anti-rotation slot 111, in the process of using the second operating head 122 to operate the isolating switch of the corresponding model and specification to open or close the switch, it can effectively prevent the lever 12 from coming out of the anti-rotation slot 111.

[0068] This embodiment does not limit the detachable connection structure between the first operating head 121 and the lever 12. In order to improve the convenience of disassembling and assembling the first operating head 121 and the lever 12 while ensuring the tightness of the connection between the first operating head 121 and the lever 12, preferably, the first operating head 121 is provided with a first internal threaded hole in the end surface facing the lever 12, and the outer peripheral surface of one end of the lever 12 facing the first operating head 121 is provided with a first external threaded portion, and the first external threaded portion matches the first internal threaded hole. When the first operating head 121 and the lever 12 are assembled and connected as one, the first external threaded portion is screwed into the first internal threaded hole to complete the assembly, and the locking torque between the first external threaded portion and the first internal threaded hole is always greater than the torque of the first operating head 121 to operate the disconnector of the corresponding model and specification to open or close the switch. When the first operating head 121 is removed from the lever 12, it is only necessary to screw the first external threaded portion off from the first internal threaded hole, and the entire disassembly and assembly process is convenient to operate. Of course, in other embodiments, a first internal threaded hole is provided in the end face of the lever 12 facing the first operating head 121, and a first external threaded portion is provided on the outer peripheral surface of one end of the lever 12 facing the first operating head 121, and the first external threaded portion matches the first internal threaded hole; this connection structure can also achieve the same technical effect as above.

[0069] In some embodiments of the utility model, the outer diameter of the second operating head 122 is larger than the inner diameter of the anti-rotation slot 111, and the second operating head 122 is detachably connected to the lever 12. By detachably connecting the second operating head 122 to the lever 12, on the one hand, it is convenient to remove the second operating head 122 for replacement or repair; on the other hand, it is convenient to remove the lever 12 from the anti-rotation slot 111 and insert it into the first through hole 112 with clearance fit, so that the operating handle 1 of this embodiment can be quickly switched to the storage state, improving the efficiency of storing the operating handle 1 of this embodiment in the installation cavity 21 of the ring network cabinet; at the same time, by setting the outer diameter of the second operating head 122 larger than the inner diameter of the anti-rotation slot 111, in the process of using the first operating head 121 to operate the isolating switch of the corresponding model and specification to open or close the switch, it can effectively prevent the lever 12 from coming out of the anti-rotation slot 111.

[0070] This embodiment does not restrict the detachable connection structure between the second operating head 122 and the lever 12. In order to improve the convenience of disassembling and assembling the two on the basis of ensuring the tightness of the connection between the second operating head 122 and the lever 12; preferably, the second operating head 122 is provided with a second internal threaded hole in the end surface facing the lever 12, and the outer peripheral surface of one end of the lever 12 facing the second operating head 122 is provided with a second external threaded portion, and the second external threaded portion matches the second internal threaded hole; when the second operating head 122 and the lever 12 are assembled and connected as one, the second external threaded portion is screwed into the second internal threaded hole to complete the assembly, and the locking torque between the second external threaded portion and the second internal threaded hole is always greater than the torque of the second operating head 122 to operate the disconnector of the corresponding model and specification to open or close the switch. When the second operating head 122 is removed from the lever 12, it is only necessary to screw the second external threaded portion off from the second internal threaded hole, and the entire disassembly and assembly process is convenient to operate. Of course, in other embodiments, a second internal threaded hole is provided in the end face of the lever 12 facing the second operating head 122, and a second external threaded portion is provided on the outer peripheral surface of one end of the lever 12 facing the second operating head 122, and the second external threaded portion matches the second internal threaded hole; this connection structure can also achieve the same technical effect as above.

[0071] like Figures 1 to 3 and Figure 5 As shown, in some embodiments of the utility model, the anti-rotation slot 111 is located on a side of the operating rod 11 deviating from the center of the operating rod 11 along the length direction of the operating rod 11. This arrangement makes it easy to apply a small force to drive the lever 12 and the operating rod 11 to rotate synchronously to operate the disconnector to open or close.

[0072] like Figures 1 to 3 As shown, in some embodiments of the utility model, a third operating head 113 is provided at one end of the operating rod 11 along the length direction of the operating rod 11, the interior of the third operating head 113 is connected with the first through hole 112 along the length direction of the operating rod 11, and the lever 12 can be loosely fitted inside the third operating head 113; the first operating head 121, the second operating head 122 and the third operating head 113 are respectively used to operate three different models and specifications of disconnectors to open or close the circuit breaker, with more comprehensive functions, thereby improving the maintenance efficiency of more complex ring network cabinets.

[0073] Specifically, the third operating head 113 is detachably connected with a fourth operating head 114 at one end away from the operating rod 11 along the length direction of the operating rod 11, and the first operating head 121, the second operating head 122, the third operating head 113 and the fourth operating head 114 are respectively used to operate four different types and specifications of disconnectors for opening or closing, with more comprehensive functions, improving the maintenance efficiency of more complex ring network cabinets. At the same time, by detachably connecting the fourth operating head 114 to the third operating head 113, when the third operating head 113 is needed to operate the disconnector of the corresponding type and specification for opening or closing, the fourth operating head 114 can be removed from the third operating head 113, releasing the third operating head 113 to operate the disconnector of the corresponding type and specification for opening or closing.

[0074] More specifically, one end of the fourth operating head 114 facing the third operating head 113 is inserted into the interior of the third operating head 113 with a clearance fit; a third internal threaded hole is provided on the side wall of the third operating head 113 perpendicular to the length direction of the operating rod 11, and the third internal threaded hole is connected to the interior of the third operating head 113; when the third operating head 113 and the fourth operating head 114 are assembled and connected, the first fastening bolt 161 is threadedly connected in the third internal threaded hole, and the tip is pressed against the outer side wall of the fourth operating head 114; the friction force between the tip of the first fastening bolt 161 and the outer side wall of the fourth operating head 114 is utilized to realize the fixed connection between the fourth operating head 114 and the third operating head 113, so that the fourth operating head 114 rotates with the operating rod 11 together with the third operating head 113, thereby realizing that the fourth operating head 114 operates the disconnector of the corresponding model and specification to open or close the switch. When the fourth operating head 114 is removed from the third operating head 113 , it is only necessary to loosen the first fastening bolt 161 so that the tip of the first fastening bolt 161 is out of contact with the outer side wall of the fourth operating head 114 . The entire disassembly and assembly process is easy to operate.

[0075] like Figures 2 to 4 and Figure 7As shown, more specifically, a connecting column 1141 is provided at one end of the fourth operating head 114 facing the third operating head 113, and the connecting column 1141 is inserted into the first through hole 112 with clearance fit, and a first annular groove 1142 is recessed on the outer circumferential surface of the connecting column 1141, and an elastic snap ring 1143 is embedded in the first annular groove 1142, and the outer diameter of the elastic snap ring 1143 is larger than the inner diameter of the first through hole 112, and a second annular groove 1121 is recessed on the inner wall of the first through hole 112 corresponding to the position of the first annular groove 1142; when the third operating head 113 and the fourth operating head 114 are assembled and connected, the elastic snap ring 1143 is embedded in the first annular groove 114 2 and the second annular groove 1121, so that the fourth operating head 114 will not fall off from the third operating head 113 due to its own weight, and it can not only ensure that it will not fall off after the connecting column 1141 is inserted into the set position in the first through hole 112, so that the first fastening bolt 161 can be threadedly connected in the third internal threaded hole until the tip of the first fastening bolt 161 is pressed against the outer wall of the fourth operating head 114 for locking operation; it can also ensure that after the first fastening bolt 161 is loosened until it is out of contact with the outer wall of the fourth operating head 114, the fourth operating head 114 will not fall off from the third operating head 113 due to its own weight and hurt people; and it can ensure that the fourth operating head 114 can be pulled out from the third operating head 113 only when a certain force value is exceeded. It should be noted that the elastic snap ring 1143 is selected as an O-type spring ring.

[0076] like Figures 1 to 3 and Figure 5 As shown, in some embodiments of the utility model, the outer periphery of the operating rod 11 is sleeved with an insulating tube 13, and the insulating tube 13 is provided with a through slot 131 at a position corresponding to the anti-rotation slot 111; when the operating handle 1 is in use, the lever 12 passes through the through slot 131 with clearance. The insulating tube 13 improves the insulation capacity of the operating handle 1 of this embodiment, and can effectively avoid electric shock accidents caused by poor grounding of the cabinet 2 of the ring network cabinet during the process of using the operating handle 1 of this embodiment to operate the disconnector to open or close the switch. It can be understood that the outer diameter of the insulating tube 13 is smaller than the inner diameter of the installation cavity 21.

[0077] like Figure 2 and Figure 3 As shown, specifically, an insulating sleeve 14 is provided in the anti-rotation slot 111; the insulating sleeve 14 further improves the insulation capacity of the operating handle 1 of this embodiment, and can more effectively avoid electric shock accidents caused by poor grounding of the cabinet body 2 of the ring network cabinet when using the operating handle 1 of this embodiment to operate the disconnect switch for opening or closing.

[0078] like Figures 2 to 5 and Figure 8As shown, in some embodiments of the utility model, the insulating tube 13 is slidably mounted on the operating rod 11 along the length direction of the operating rod 11, and a spring 15 is disposed on the outer sleeve of the operating rod 11. The spring 15 is arranged along the length direction of the operating rod 11, and the two ends of the spring 15 are respectively abutted against the end surfaces of the insulating tube 13 and the third operating head 113 facing each other; when the operating handle 1 is in use and the third operating head 113 is used to operate the isolating switch of the corresponding model and specification for opening or closing, the through groove 131 is in contact with the third operating head 113. The anti-rotation slot 111 is aligned, and the spring 15 is in a compressed force storage state; the spring 15 in the force storage state always provides a thrust toward the lever 12 along the length direction of the operating rod 11 for the insulating tube 13, so that the outer wall of the lever 12 and the inner wall of the through slot 131 are always in contact with each other, and the friction between the outer wall of the lever 12 and the inner wall of the through slot 131 effectively limits the free sliding of the lever 12 relative to the operating rod 11 along the length direction of the lever 12, thereby preventing the operator's hand from being pinched by the gap between the lever 12 and the anti-rotation slot 111.

[0079] like Figure 2 , Figure 7 and Figure 8 As shown, specifically, the insulating tube 13 can be rotatably connected to the operating rod 11 around the length direction of the operating rod 11, and the inner wall of one end of the insulating tube 13 away from the third operating head 113 is evenly distributed with a plurality of bosses 132 along the circumferential direction, preferably two bosses 132 here; a round table 116 is convexly provided on the outer circumference of one end of the operating rod 11 away from the third operating head 113, and the round table 116 is evenly distributed with the same number of through grooves 1161 as the bosses 132 along the circumferential direction, and the through grooves 1161 penetrate the round table 116 along the length direction of the operating rod 11 and match the bosses 132; when the insulating tube 13 is assembled on the operating rod 11, the boss 132 abuts against the end face of the round table 116 facing the third operating head 113 along the length direction of the operating rod 11, and the spring 15 is at In the compressed power storage state; at this time, the spring 15 is used to provide the insulating tube 13 with a thrust toward the round table 116 along the length direction of the operating rod 11, ensuring that the friction between the boss 132 and the round table 116 limits the two and is not easy to rotate relative to each other, thereby ensuring that the boss 132 and the through groove 1161 are staggered along the circumferential direction, so that the insulating tube 13 is stably assembled on the operating rod 11; when one of the insulating tube 13 and the operating rod 11 is damaged and needs to be separated, an external force away from the round table 116 along the length direction of the operating rod 11 is applied to the insulating tube 13 to further compress the spring 15, so that the end faces of the boss 132 and the round table 116 facing each other are disengaged, and the insulating tube 13 is driven to rotate until the boss 132 is aligned with the through groove 1161, and then the insulating tube 13 can be removed from the operating rod 11, and the entire disassembly and assembly process is easy to operate.

[0080] like Figure 2 , Figure 3 , Figure 4 , Figure 7 and Fig. 9 As shown, specifically, the inner wall of the third operating head 113 is recessed with a mounting arc groove 1131, and the mounting arc groove 1131 is arranged circumferentially around the length direction of the operating rod 11; the outer circumferential surface of the operating rod 11 is convexly provided with an arc key 115 at a position corresponding to the mounting arc groove 1131, and the arc key 115 is arranged circumferentially around the length direction of the operating rod 11, the curvature of the arc key 115 is smaller than the curvature of the mounting arc groove 1131, and the arc key 115 is rotatably connected in the mounting arc groove 1131. Because the arc of the installation arc groove 1131 is greater than the arc of the arc-shaped card key 115, after the operating handle 1 of this embodiment operates the disconnector to open or close the dead point, the spring energy release of the disconnector will cause the third operating head 113 to continue to rotate under the action of inertia, and the installation arc groove 1131 can provide a large range of idle travel, thereby avoiding the spring energy release of the disconnector from causing impact damage to the operator's arm; at the same time, by hiding and embedding the arc-shaped card key 115 in the installation arc groove 1131, it can avoid the situation where the arc-shaped card key 115 is exposed and interferes with the panel (or dust cover) of the ring network cabinet, and it can also avoid the arc-shaped card key 115 being exposed and loosened or falling off due to external impact, and the overall appearance is more beautiful. It can be understood that the idle travel range provided by the installation arc groove 1131 is at least 180°.

[0081] like Figure 7 and Fig. 9 As shown, specifically, the third operating head 113 is provided with a key slot 1132 on the inner wall of one end of the operating rod 11 along the length direction of the operating rod 11; the key slot 1132 is arranged parallel to the length direction of the operating rod 11, one end of the key slot 1132 is connected to the installation arc slot 1131, and the other end passes through the third operating head 113 along the length direction of the operating rod 11; the key slot 1132 is used for the arc-shaped card key 115 to move through. The key slot 1132 provides a channel for the arc-shaped card key 115 to move in and out of the installation arc slot 1131, so that the arc-shaped card key 115 can be disassembled and assembled in the installation arc slot 1131.

[0082] like Figures 2 to 4As shown, more specifically, an arc-shaped bearing bush 162 is arranged in the installation arc groove 1131, and the arc-shaped bearing bush 162 is arranged circumferentially around the length direction of the operating rod 11; the outer diameter of the arc-shaped clamping key 115 is larger than the inner diameter of the arc-shaped bearing bush 162, and the sum of the arcs of the arc-shaped clamping key 115 and the arcs of the arc-shaped bearing bush 162 is smaller than the arc of the installation arc groove 1131; the operating rod 11 is rotatably connected in the arc-shaped bearing bush 162. The arc-shaped bearing bush 162 provides a transition component for the operating rod 11 to be rotatably connected to the installation arc groove 1131, eliminating the direct rotation connection between the arc-shaped clamping key 115 and the installation arc groove 1131, so that the arc-shaped clamping key 115 rotates relative to the installation arc groove 1131 with an idle stroke.

[0083] like Figure 2 and Fig. 9 As shown, more specifically, the outer peripheral surface of the arc-shaped bearing 162 is provided with at least one fourth internal threaded hole 1621, and preferably there are two fourth internal threaded holes 1621 here, and the two fourth internal threaded holes 1621 are arranged circumferentially at intervals around the length direction of the operating rod 11, and the fourth internal threaded holes 1621 are arranged in a direction perpendicular to the length direction of the operating rod 11; the side wall of the third operating head 113 is provided with a second through hole 1133 at a position corresponding to the fourth internal threaded hole 1621, and the second through hole 1133 passes through the side wall of the third operating head 113 in parallel with the fourth internal threaded hole 1621; when the arc-shaped bearing 162 is assembled and connected in the mounting arc groove 1131, the second fastening bolt 163 passes through the second through hole 1133 and is threadedly connected in the fourth internal threaded hole 1621. The arc-shaped bearing 162 is connected to the third operating head 113 by a detachable connection method in which the second fastening bolt 163 is threadedly connected to the fourth internal threaded hole 1621, so that when the arc-shaped bearing 162 is damaged and cannot be used normally, the arc-shaped bearing 162 can be removed for repair or replacement. It should be noted that the third operating head 113 and the operating rod 11 are assembled in the following manner: first, the arc-shaped bearing 162 is embedded in the installation arc groove 1131, and then the arc-shaped key 115 on the operating rod 11 is aligned with the key groove 1132 and inserted into the installation arc groove 1131, and then the third operating head 113 is rotated until the second through hole 1133 is aligned with the corresponding fourth internal threaded hole 1621, and finally the second fastening bolt 163 is passed through the second through hole 1133 and screwed into the corresponding fourth internal threaded hole 1621.

[0084] Embodiment 2

[0085] like Figures 1 to 11As shown in the present embodiment, a ring main unit is provided, comprising a cabinet body 2 and an operating handle 1, wherein the operating handle 1 adopts the operating handle 1 described in Embodiment 1; a mounting cavity 21 is arranged on the front side wall of the cabinet body 2 along the length direction of the operating rod 11; when the operating handle 1 is in the storage state, the operating rod 11 is loosely fitted and embedded in the mounting cavity 21.

[0086] The ring network cabinet of this embodiment sets the outer diameter of the lever 12 in the operating handle 1 to be smaller than the inner diameter of the first through hole 112, and the outer diameter of the operating rod 11 is smaller than the inner diameter of the installation cavity 21. When the operating handle 1 needs to be stored, the lever 12 can be hidden and inserted in the first through hole 112 with a clearance fit, so that the operating handle 1 is combined to form a straight line structure arranged parallel to the length direction of the operating rod 11, reducing the size of the operating handle 1 in the storage state, thereby facilitating the storage and hidden installation of the operating handle 1 in the installation cavity 21 of the ring network cabinet of this embodiment, and reducing the installation space occupied by the ring network cabinet of this embodiment. By clamping the lever 12 in the operating handle 1 into the anti-rotation slot 111, it is convenient to quickly assemble the lever 12 in the anti-rotation slot 111, so that the operating handle 1 is quickly switched to the use state to operate the disconnect switch to open or close the switch, thereby improving the efficiency of repairing the ring network cabinet of this embodiment; it is also convenient to remove the lever 12 from the anti-rotation slot 111, so that the operating handle 1 is quickly switched to the storage state, thereby improving the efficiency of hiding the operating handle 1 in the installation cavity 21 of the ring network cabinet of this embodiment.

[0087] like Fig.12 and Fig.13 As shown, specifically, the front side wall of the cabinet 2 is provided with an elastic clamping portion 22, and the elastic clamping portion 22 is located at the relatively upper end of the mounting cavity 21 along the length direction of the lever 12; the elastic clamping portion 22 is provided with an opening groove at the end away from the cabinet 2, and the opening groove has an expanded open state and a reset initial state; when the opening groove is in the expanded state, the lever 12 is interference fit in the opening groove; when the opening groove is in the initial state, the opening size of the opening groove is smaller than the outer diameter of the lever 12. When the operating handle 1 needs to be temporarily stored on the cabinet 2 and is used again after a short interval, in order to shorten the transition time of switching the operating handle 1 from the storage state to the use state, the operating rod 11 of the operating handle 1 in use state can be inserted into the installation cavity 21 with a clearance fit, and the lever 12 can be inserted into the open groove with an interference fit, and the friction force between the inner wall of the open groove and the outer wall of the lever 12 can be used to clamp the lever 12, so that the operating handle 1 can be stored on the cabinet 2 without switching the operating handle 1 to the storage state.

[0088] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. An operating handle, characterized in that: Applicable for use with a ring network cabinet having a mounting cavity (21) on the surface, the operating handle comprises: The operating rod (11) is provided with an anti-rotation groove (111) extending perpendicularly to the length direction of the operating rod (11); the cross section of the anti-rotation groove (111) is polygonal; a first through hole (112) is formed on the operating rod (11) extending along the length direction of the operating rod (11); the outer diameter of the operating rod (11) is smaller than the inner diameter of the mounting cavity (21); A lever (12), wherein a cross section perpendicular to the length direction of the lever (12) is adapted to the anti-rotation slot (111); a first operating head (121) is provided at one end of the lever (12) along the length direction of the lever (12); When the operating handle (1) is in a storage state, the lever (12) is inserted into the first through hole (112) with a clearance fit; When the operating handle (1) is in use, the lever (12) is inserted through the anti-rotation slot (111) with clearance fit.

2. An operating handle according to claim 1, characterized in that: A second operating head (122) is provided at one end of the lever (12) away from the first operating head (121) along the length direction of the lever (12); the first operating head (121) and the second operating head (122) are respectively used to operate disconnectors of two different models and specifications; And / or, the anti-rotation slot (111) is a square slot with a square cross-section, and the lever (12) is a column with a cross-section that matches the square slot; And / or, the anti-rotation slot (111) is located on a side of the operating rod (11) deviating from the center of the operating rod (11) along the length direction of the operating rod (11); And / or, a third operating head (113) is provided at one end of the operating rod (11) along the length direction of the operating rod (11), the interior of the third operating head (113) is connected to the first through hole (112) along the length direction of the operating rod (11), and the lever (12) can be loosely fitted inside the third operating head (113); the first operating head (121) and the third operating head (113) are respectively used to operate two different types of disconnectors; And / or, the outer periphery of the operating rod (11) is sleeved with an insulating tube (13), and the insulating tube (13) is provided with a through slot (131) at a position corresponding to the anti-rotation slot (111); when the operating handle (1) is in use, the lever (12) passes through the through slot (131) with clearance fit; And / or, an insulating sleeve (14) is provided inside the anti-rotation slot (111).

3. An operating handle according to claim 2, characterized in that: The outer diameter of the first operating head (121) is greater than the inner diameter of the anti-rotation slot (111), and the first operating head (121) is detachably connected to the lever (12); And / or, the outer diameter of the second operating head (122) is greater than the inner diameter of the anti-rotation slot (111), and the second operating head (122) is detachably connected to the lever (12); And / or, the third operating head (113) is detachably connected to a fourth operating head (114) at one end of the operating rod (11) away from the operating rod (11) along the length direction of the operating rod (11), and the first operating head (121), the third operating head (113) and the fourth operating head (114) are respectively used to operate disconnectors of three different models and specifications; And / or, the insulating tube (13) is slidably mounted on the operating rod (11) along the length direction of the operating rod (11), a spring (15) is disposed on the outer sleeve of the operating rod (11), the spring (15) is arranged along the length direction of the operating rod (11), and two ends of the spring (15) respectively abut against the end surfaces of the insulating tube (13) and the third operating head (113) facing each other; when the operating handle (1) is in use, the through groove (131) is aligned with the anti-rotation groove (111), and the spring (15) is in a compressed force storage state.

4. An operating handle according to claim 3, characterized in that: A first internal threaded hole is provided in the end surface of the first operating head (121) facing the lever (12), and a first external threaded portion is provided on the outer peripheral surface of one end of the lever (12) facing the first operating head (121), and the first external threaded portion matches the first internal threaded hole; And / or, a second internal threaded hole is provided in the end surface of the second operating head (122) facing the lever (12), and a second external threaded portion is provided on the outer peripheral surface of one end of the lever (12) facing the second operating head (122), and the second external threaded portion matches the second internal threaded hole; And / or, one end of the fourth operating head (114) facing the third operating head (113) is inserted into the interior of the third operating head (113) with a clearance fit; a third internal threaded hole is provided on the side wall of the third operating head (113) perpendicular to the length direction of the operating rod (11), and the third internal threaded hole is connected to the interior of the third operating head (113); when the third operating head (113) is assembled and connected with the fourth operating head (114), the first fastening bolt (161) is threadedly connected in the third internal threaded hole, and the tip is pressed against the outer wall of the fourth operating head (114).

5. An operating handle according to claim 4, characterized in that: A connecting column (1141) is provided at one end of the fourth operating head (114) facing the third operating head (113); the connecting column (1141) is inserted into the first through hole (112) with clearance fit; a first annular groove (1142) is concavely provided on the outer circumferential surface of the connecting column (1141); an elastic snap ring (1143) is embedded in the first annular groove (1142); the outer diameter of the elastic snap ring (1143) is larger than the inner diameter of the first through hole (112); a second annular groove (1121) is concavely provided on the inner wall of the first through hole (112) at a position corresponding to the first annular groove (1142); when the third operating head (113) and the fourth operating head (114) are assembled and connected, the elastic snap ring (1143) is embedded between the first annular groove (1142) and the second annular groove (1121); And / or, the inner wall of the third operating head (113) is recessed with a mounting arc groove (1131), and the mounting arc groove (1131) is arranged circumferentially around the length direction of the operating rod (11); the outer circumferential surface of the operating rod (11) is convexly provided with an arc-shaped latch key (115) at a position corresponding to the mounting arc groove (1131), and the arc-shaped latch key (115) is arranged circumferentially around the length direction of the operating rod (11), the arc of the arc-shaped latch key (115) is smaller than the arc of the mounting arc groove (1131), and the arc-shaped latch key (115) is rotatably connected in the mounting arc groove (1131).

6. An operating handle according to claim 5, characterized in that: The third operating head (113) is provided with a key groove (1132) on the inner wall of one end of the operating rod (11) along the length direction of the operating rod (11); the key groove (1132) is arranged parallel to the length direction of the operating rod (11); one end of the key groove (1132) is connected to the installation arc groove (1131), and the other end passes through the third operating head (113) along the length direction of the operating rod (11); the key groove (1132) is used for the arc-shaped key (115) to movably pass through; And / or, an arc-shaped bearing (162) is arranged in the mounting arc groove (1131), and the arc-shaped bearing (162) is arranged circumferentially around the length direction of the operating rod (11); the outer diameter of the arc-shaped key (115) is larger than the inner diameter of the arc-shaped bearing (162), and the sum of the curvature of the arc-shaped key (115) and the curvature of the arc-shaped bearing (162) is smaller than the curvature of the mounting arc groove (1131); the operating rod (11) is rotatably connected in the arc-shaped bearing (162).

7. An operating handle according to claim 6, characterized in that: The outer peripheral surface of the arc-shaped bearing (162) is provided with at least one fourth internal threaded hole (1621), and the fourth internal threaded hole (1621) is arranged in a direction perpendicular to the length direction of the operating rod (11); the side wall of the third operating head (113) is provided with a second through hole (1133) at a position corresponding to the fourth internal threaded hole (1621), and the second through hole (1133) passes through the side wall of the third operating head (113) in parallel with the fourth internal threaded hole (1621); when the arc-shaped bearing (162) is assembled and connected in the mounting arc groove (1131), the second fastening bolt (163) passes through the second through hole (1133) and is threadedly connected in the fourth internal threaded hole (1621).

8. An operating handle according to claim 3, characterized in that: The insulating tube (13) is connected to the operating rod (11) in a rotatable manner around the length direction of the operating rod (11); a plurality of bosses (132) are evenly distributed along the circumferential direction on the inner wall of one end of the insulating tube (13) away from the third operating head (113); a truncated platform (116) is convexly provided on the outer circumference of one end of the operating rod (11) away from the third operating head (113); and the truncated platform (116) is evenly distributed along the circumferential direction with the same number of through grooves as the bosses (132). (1161), the through groove (1161) passes through the round table (116) along the length direction of the operating rod (11) and matches the boss (132); when the insulating tube (13) is assembled on the operating rod (11), the boss (132) abuts against the end face of the round table (116) along the length direction of the operating rod (11) toward the third operating head (113), and the spring (15) is in a compressed force storage state.

9. A ring main unit, characterized in that: The invention comprises a cabinet (2) and an operating handle (1), wherein the operating handle (1) is an operating handle (1) according to any one of claims 1 to 8; a mounting cavity (21) is arranged on the front side wall of the cabinet (2) along the length direction of the operating rod (11); when the operating handle (1) is in a storage state, the operating rod (11) is loosely fitted and embedded in the mounting cavity (21).

10. The ring main unit according to claim 9, characterized in that: The front side wall of the cabinet (2) is provided with an elastic clamping portion (22), and the elastic clamping portion (22) is located at the upper end of the mounting cavity (21) along the length direction of the lever (12); an open groove is provided at one end of the elastic clamping portion (22) away from the cabinet (2), and the open groove has an expanded open state and a reset initial state; When the opening slot is in the expanded state, the lever (12) is interference-fitted in the opening slot; When the opening slot is in the initial state, the opening size of the opening slot is smaller than the outer diameter of the lever (12).

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