Detachable disconnecting link mechanical locking device and use method thereof

Abstract

The invention relates to the technical field of electrical equipment, in particular to a detachable disconnecting link mechanical locking device and a using method thereof, and the device comprises a limiting assembly which comprises a limiting groove capable of allowing a disconnecting link locking rod and an auxiliary fixture to penetrate through together, and at least one group of gaps for allowing the disconnecting link locking rod and the auxiliary fixture to pass through; the limiting assembly is provided with a notch, the connecting assembly is detachably installed at the notch of the limiting assembly, and when the connecting assembly is installed at the notch, the limiting groove prevents the disconnecting link locking rod from being separated from the auxiliary fixing object in the operation direction. According to the invention, through mutual cooperation between the limiting assembly with the gap and the connecting assembly which is detachably connected with the gap, the connecting part of the gap can be directly and rapidly detached when replacement is needed, and the problems that the disconnecting link locking hanging ring needs to be replaced in a power-off manner, the disconnecting link needs to be readjusted every time, and the operation difficulty is large are solved.

Description

Technical Field

[0001] The invention relates to the technical field of electrical equipment, in particular to a detachable knife switch mechanical locking device and a use method thereof. Background Art

[0002] The knife switch is one of the most important components in the power system. In order to limit the position of the knife switch, avoid misoperation or prevent the knife switch from malfunctioning during operation, a knife switch locking rod is often set to limit the operation of the knife switch. Specifically, the knife switch can be locked when the knife switch locking rod is rotated to a vertical state, and the knife switch cannot be operated at this time; and the knife switch can be unlocked when the knife switch locking rod is rotated to a horizontal state, and the knife switch can be operated at this time. The knife switch locking ring is used to keep the knife switch locking rod in a vertical locking state, and the knife switch locking rod is bound together with the nearest auxiliary fixture through a ring-shaped mechanical locking device. The knife switch locking rod and the selected nearest auxiliary fixture are blocked by other equipment at both ends, so that the knife switch locking ring will not be directly taken out, so that the knife switch locking rod cannot be directly rotated to break away from the auxiliary fixture to reach a horizontal state, thereby realizing the stable operation of the knife switch.

[0003] Then in the prior art, the knife gate locking rod is often bound to the nearest knife gate operation vertical main connecting rod, and the existing locking hanging ring is a complete metal ring, such as Figure 1 As shown, the upper and lower ends of the knife switch locking rod and the vertical main connecting rod will be blocked during normal use, so that the complete locking ring can only be removed in the direction of the arrow shown in the figure after the blockages at the upper and lower ends of the knife switch locking rod and the vertical main connecting rod are removed. When maintenance personnel replace the locking ring, they need to remove the clamp under the vertical connecting rod, disassemble the vertical main connecting rod for knife switch operation, and even cut the vertical connecting rod and re-weld it before inserting the locking ring. The removal of the clamp will also cause the knife switch to be misaligned, and continuous adjustments are required to make the knife switch operate in the correct position. Therefore, the power must be cut off to replace the knife switch locking ring. The replacement of the line-side knife switch requires the shutdown of the interval and line, and the replacement of the busbar-side knife switch requires the shutdown of the interval and busbar. Under high load conditions, it is difficult to stop the line or even the busbar, and the adjustment of the knife switch after reinstallation requires a high level of proficiency for the maintenance personnel and takes a long time. It takes about 2 people to cooperate with each other for 20 minutes for skilled personnel to replace the knife switch locking ring and adjust the knife switch into place. In addition, during outdoor operation, the knife switch locking ring is very prone to rust or even breakage, causing the knife switch to be misaligned and heated during operation or even an accident where the knife switch is pulled while energized. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the problems in the above or prior art that the knife switch locking ring needs to be replaced during power outage and the knife switch needs to be readjusted each time, which makes the operation difficult, the present invention is proposed.

[0006] Therefore, one of the objects of the present invention is to provide a detachable knife switch mechanical locking device.

[0007] In order to solve the technical problem, the present invention provides the following technical solution: a detachable knife switch mechanical locking device, comprising:

[0008] A limiting assembly, comprising a limiting groove capable of accommodating the knife gate locking rod and the auxiliary fixing object to pass through, and at least one set of notches for the knife gate locking rod and the auxiliary fixing object to pass through; and,

[0009] The connecting component is detachably mounted at the notch of the limiting component. When the connecting component is mounted at the notch, the limiting groove blocks the knife switch locking rod from separating from the auxiliary fixture in the operating direction.

[0010] As a preferred solution of the detachable knife switch mechanical locking device of the present invention, wherein: the connecting component comprises a docking member 1 and a docking member 2 respectively arranged on the limiting components on both sides of the notch, a locking member is connected between the docking member 1 and the docking member 2, and the locking member is used to fix the distance between the docking member 1 and the docking member 2;

[0011] Among them, the docking member 1 and the limiting assembly, or / and the docking member 2 and the limiting assembly, or / and the locking member and the docking member 1 and the docking member 2 are detachably connected.

[0012] As a preferred solution of the detachable knife switch mechanical locking device described in the present invention, wherein: the notches are provided with at least two groups, the limiting assembly is divided into a plurality of limiting parts by at least two groups of notches, two adjacent limiting parts are detachably connected at the notches by a connecting assembly, and the limiting groove is formed between the limiting parts connected by the connecting assembly.

[0013] As a preferred solution of the detachable knife switch mechanical locking device described in the present invention, wherein: the notch is provided with a group, the limit assembly also includes a group of rotation centers, the rotation center and the notch separate the limit assembly into two groups of limit parts, and the two groups of limit parts are rotationally connected through the rotation center.

[0014] As a preferred solution of the detachable knife switch mechanical locking device described in the present invention, the limiting portion includes a plurality of groups of strip segments and arc segments connected in sequence, at least one group of the strip segments is connected to the notch, and the docking piece 1 and the docking piece 2 are both arranged on the strip segment connected to the notch.

[0015] As a preferred solution of the detachable knife switch mechanical locking device of the present invention, wherein: the rotation center is a rotating shaft that passes through the two groups of the limiting parts, and the two groups of the limiting parts are both provided with a strip groove slidably connected to the rotating shaft.

[0016] As a preferred solution of the detachable knife gate mechanical locking device of the present invention, the radius size of the arc segment is matched with the shape of the knife gate locking rod, or the radius size of the arc segment is matched with the shape of the auxiliary fixture.

[0017] As a preferred solution of the detachable knife switch mechanical locking device of the present invention, wherein: the first docking piece and the second docking piece are both external threads arranged on the surface of the strip segment and in the same direction;

[0018] The locking member comprises a connecting sleeve provided with an internal thread. When the centers of the external threads of the docking member 1 and the docking member 2 are coaxial, the connecting sleeve slides through the threads between the internal thread and the external thread.

[0019] As a preferred solution of the detachable knife switch mechanical locking device of the present invention, the locking member further comprises a limiting nut arranged on the surface of the external thread.

[0020] The beneficial effect of the detachable knife switch mechanical locking device of the present invention: the present invention cooperates with each other through the setting of the limit component with the notch and the detachable connecting component connecting the notch, so that the connecting part of the notch can be directly and quickly disassembled when replacement is needed, thereby solving the problem of needing to shut down the power to replace the knife switch locking ring, and the knife switch needs to be readjusted every time, which makes the operation difficult.

[0021] Based on the same inventive concept, another object of the present invention is to provide a method for using a detachable knife switch mechanical locking device, using the detachable knife switch mechanical locking device, and operating according to the following steps:

[0022] The knife switch locking rod and the auxiliary fixing object are placed into the limiting groove formed by at least two limiting parts through the notch;

[0023] The gaps between two adjacent groups of limiting parts are connected by connecting components;

[0024] Connect the remaining groups of limit parts in sequence through the connecting components to complete the installation;

[0025] When replacement is required, disassemble the mechanical locking device of the knife switch by the reverse steps of the above steps, and then install it by the above steps to complete the replacement;

[0026] The method for installing and connecting the connection assembly includes:

[0027] Install two limiting nuts on the external threads of docking piece 1 and docking piece 2 on both sides of the notch respectively;

[0028] Install the connecting sleeve on the external thread of the docking piece 1 through threads;

[0029] Align the strip sections where the first and second butt joints are located so that the centers of the external threads of the two are coaxial;

[0030] Adjust the distance between the first and second docking parts as needed;

[0031] The connecting sleeve is screwed in the reverse direction, so that the internal thread of the connecting sleeve is matched with the external thread of the second docking piece at the same time and the threads slide;

[0032] Slide the limiting nuts on the docking piece 1 and the docking piece 2 onto the extruded connecting sleeve to fix the connecting sleeve.

[0033] The beneficial effects of the method for using the detachable knife switch mechanical locking device of the present invention are the same as the beneficial effects of the detachable knife switch mechanical locking device, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0035] Figure 1 The figure is a schematic diagram of the structure after the locking hanging ring of the prior art is installed.

[0036] Figure 2 This is a schematic diagram of the three-dimensional structure of Example 1 of the present invention when the gaps are not connected.

[0037] Figure 3 This is a schematic diagram of the three-dimensional structure after the gaps are connected in Example 1 of the present invention.

[0038] Figure 4 This is a schematic diagram of the three-dimensional structure of Example 2 of the present invention when the gaps are not connected.

[0039] Figure 5 This is a schematic diagram of the three-dimensional structure after the gaps are connected in Example 2 of the present invention.

[0040] Figure 6 This is a schematic diagram of the three-dimensional structure after the gaps are connected in Example 3 of the present invention.

[0041] Figure 7 This is a schematic diagram of the three-dimensional structure of Example 3 of the present invention when the gaps are not connected.

[0042] Figure 8 This is a schematic diagram of the three-dimensional structure when the connecting sleeve is installed in Example 4 of the present invention.

[0043] Fig. 9 It is a schematic diagram of the three-dimensional structure when adjusting the limit groove according to embodiment 4 of the present invention.

[0044] Fig.10 It is a schematic structural diagram of the external thread direction of docking component 1 and docking component 2 in embodiment 4 of the present invention. DETAILED DESCRIPTION

[0045] In order to make the objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0046] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0047] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0048] Example 1

[0049] Reference Figure 2 and Figure 3 , which is the first embodiment of the present invention, provides a detachable knife switch mechanical locking device, which can achieve the effect of replacing the knife switch locking ring without power outage, and there is no need to readjust the knife switch, and the operation is easy. It includes: a limit component 100 with a notch and a detachable connecting component 200 with a notch.

[0050] Specifically, the limiting assembly 100 is the main body of the locking ring, which is not limited to a circular ring shape, and includes a limiting groove 101 that can accommodate the knife gate locking rod and the auxiliary fixture to pass through, and at least one group of notches for the knife gate locking rod and the auxiliary fixture to pass through. The remaining parts of the limiting assembly 100 except the notches are continuous. The auxiliary fixture is fixed by itself and is close to the knife gate locking rod. In this embodiment, the auxiliary fixture is a knife gate vertical main connecting rod parallel to and close to the knife gate locking rod in the vertical state. The knife gate locking rod and the auxiliary fixture can pass through the notch and enter the limiting groove 101.

[0051] Further, the connecting component 200 can be detachably mounted at the notch of the limiting component 100. After the knife gate locking rod and the auxiliary fixture enter the limiting groove 101 through the notch, the connecting component 200 is installed at the notch to block them. When the connecting component 200 is installed at the notch, the limiting groove 101 can block the knife gate locking rod from separating from the auxiliary fixture in the operating direction in all directions, so as to keep the knife gate locked.

[0052] Preferably, the connecting component 200 includes a docking member 201 and a docking member 202 which are respectively arranged on the limiting components 100 on both sides of the notch. It is worth noting that the structures of the docking member 201 and the docking member 202 can be the same. The naming and labeling of the docking member 201 and the docking member 202 here are only for the convenience of description, and no specific restriction is imposed on which side of the notch or the structure they are located on. A locking member 203 is connected between the docking member 201 and the docking member 202, and the locking member 203 is used to fix the distance between the docking member 201 and the docking member 202. The main body of the locking ring is a non-elastic structure, so that after the locking piece 203 fixes the distance between the docking piece 1 201 and the docking piece 202, the size of the limiting groove 101 remains fixed and no longer changes, thereby preventing the knife gate locking rod from compressing and increasing the limiting groove 101 and then detaching from the auxiliary fixing object; or the elastic range of the locking ring is limited, so that after the locking piece 203 fixes the distance between the docking piece 1 201 and the docking piece 202, the limiting groove 101 can still prevent the knife gate locking rod from detaching from the auxiliary fixing object and rotating to the unlocked state when the elastic force is deformed to the maximum range.

[0053] There is a detachable connection between the docking member 1 201 and the limit assembly 100, or / and between the docking member 202 and the limit assembly 100, or / and between the locking member 203 and the docking member 1 201 and the docking member 2 202. The connecting assembly 200 is detachably mounted at the notch of the limit assembly 100. For easy replacement, any two of the docking member 1 201, the docking member 202 and the locking member 203 can be detachably connected. When replacement is required, only the detachable part thereof needs to be disassembled so that the knife switch locking rod and the auxiliary fixing can pass through the notch, and then the locking ring of the limit assembly 100 can be disassembled and removed for easy replacement.

[0054] Example 2

[0055] Reference Figure 4 and Figure 5 , which is the second embodiment of the present invention. Different from the previous embodiment, this embodiment provides a limiting component 100 with no less than two groups of notches, and the limiting component 100 is divided into at least two groups of limiting parts 102 to facilitate the installation of the locking ring.

[0056] Specifically, there are at least two groups of notches, and the limiting assembly 100 is separated by at least two groups of notches to form a plurality of limiting parts 102. Two adjacent limiting parts 102 are detachably connected at the notches by the connecting assembly 200, and the limiting groove 101 is formed between the limiting parts 102 connected by the connecting assembly 200. In this embodiment, the notches are set to two groups, and the limiting assembly 100 is separated by two groups of notches to form two groups of limiting parts 102. During installation, the two groups of limiting parts 102 are respectively surrounded by the knife gate locking rod and the auxiliary fixing object in sequence, so that the knife gate locking rod and the auxiliary fixing object are in the limiting groove 101, and then the connecting assembly 200 at the two groups of notches is respectively installed.

[0057] Furthermore, the limiting portion 102 includes a plurality of groups of bar segments 102a and arc segments 102b connected in sequence, at least one group of bar segments 102a is connected to the notch, and the docking piece 1 201 and the docking piece 202 are both arranged on the bar segment 102a connected to the notch. Since the locking hook body is mostly a circular ring shape formed by scanning along a certain trajectory, in this embodiment, the bar segment 102a refers to the locking hook body part of the segment whose circular scanning trajectory is a straight line, and the appearance shows that it forms a straight line segment, and the arc segment 102b refers to the locking hook body part of the segment whose circular scanning trajectory is a circular arc or an elliptical arc.

[0058] Among them, the radius size of the arc segment 102b is adapted to the shape of the knife gate locking rod, or the radius size of the arc segment 102b is adapted to the shape of the auxiliary fixture. Since the knife gate locking rod and the auxiliary fixture knife gate vertical main connecting rod in this embodiment are both approximately cylindrical, the radius of the two arc segments 102b located on the two limiting parts 102 can be respectively adapted to the radius of the knife gate locking rod and the knife gate vertical main connecting rod, which can not only save materials and occupy space, but also make the formed limiting groove 101 more adapted to the shape of the knife gate locking rod and the knife gate vertical main connecting rod, so that the movable gap of the knife gate locking rod in each angular direction in the limiting groove 101 is similar, preventing a certain angular gap from being too large, causing the knife gate locking rod to rotate significantly and causing the knife gate to tend to unlock. Both the docking member 1 201 and the docking member 2 202 are arranged on the strip segment 102a connected to the notch, and when the docking member 1 201 and the docking member 2 202 are fixed by the locking member 203, the strip segments 102a where the docking member 1 201 and the docking member 2 202 are located are parallel to each other, so that the docking member 1 201 and the docking member 2 202 can directly approach or move away from each other along the direction of the strip segment 102a during installation or disassembly and replacement, thereby quickly realizing the combination or separation between the two limit parts 102.

[0059] The rest of the structure is the same as that of Example 1.

[0060] Example 3

[0061] Reference Figure 6 and Figure 7 , which is the third embodiment of the present invention. Different from the previous embodiment, this embodiment provides only one group of notches and one group of rotation centers 103. The limiting component 100 is separated by the group of notches and the rotation center 103 to form two groups of limiting parts 102, which solves the problem of cumbersome installation caused by too many groups of notches and matching connecting components 200.

[0062] Specifically, there is a group of notches, and the limiting assembly 100 further includes a group of rotation centers 103. The rotation centers 103 and the notches separate the limiting assembly 100 to form two groups of limiting parts 102, and the two groups of limiting parts 102 are rotatably connected through the rotation centers 103. The two groups of limiting parts 102 rotate through the rotation centers 103, so that the size of the notch between the two groups of limiting parts 102 can be adjusted with the rotation, and the notch is enlarged after the rotation so that the knife gate locking rod and the auxiliary fixing object pass into the limiting groove 101, and then the notch is reduced by rotation, and then the spacing between the docking piece 1 201 and the docking piece 2 202 on both sides of the notch is fixed by the locking piece 203, so as to complete the limiting locking of the knife gate locking rod.

[0063] Furthermore, the rotation center 103 is a rotation shaft that passes through the two sets of limit parts 102, and the two sets of limit parts 102 are provided with a strip groove 102c that is slidably connected to the rotation shaft. The two sets of limit parts 102 are connected by the rotation shaft, and at least one of the two sets of limit parts 102 is provided with a strip groove 102c that is slidably connected to the rotation shaft, and the rotation shaft can rotate and slide in the strip groove 102c at the same time. In this embodiment, both groups of limiting portions 102 are provided with strip grooves 102c, and the rotating shaft passes through the two strip grooves 102c at the same time. Limiting structures are provided at both ends of the rotating shaft to prevent them from escaping from the strip grooves 102c. When the two groups of limiting portions 102 are rotated through the rotating shaft until the strip segments 102a where the docking member 1 201 and the docking member 2 202 are located are parallel to each other, at this time, the strip grooves 102c of the two groups of limiting portions 102 are parallel in the same direction. In this way, the size of the internally formed limiting grooves 101 can be adjusted by moving the two groups of limiting portions 102 closer or farther away along the direction of the strip grooves 102c to improve adaptability.

[0064] The limit assembly 100 and the connecting assembly 200 that constitute the locking ring are generally made of metal materials with sufficient strength. However, in outdoor environments, especially in some coastal cities, the surface of the locking ring is easily corroded, which is not conducive to its effective use. In this embodiment, each component of the limit assembly 100 and each component of the connecting assembly 200 are made of stainless steel or galvanized material to enhance the service life. The connection between the limit assembly 100 and the connecting assembly 200 is more susceptible to rust due to the difficulty of rust-proof processing and the wear caused during installation and disassembly. Therefore, the fewer notches are set, the less impact on the overall service life, and the installation steps can be simplified, which can be promoted for use.

[0065] The remaining structures are the same as those in Example 2.

[0066] Example 4

[0067] Reference Figure 8-Figure 10 , which is the fourth embodiment of the present invention. Different from the previous embodiment, this embodiment provides a preferred implementation structure of the connecting component 200.

[0068] Specifically, both the docking piece 1 201 and the docking piece 202 are provided with external threads in the same direction on the surface of the strip segment 102a, and the same direction here means that when the docking piece 1 201 and the docking piece 202 are installed and docked through the locking piece 203, the external threads on the two surfaces are in the same rotation direction. In addition, the other dimensions of the external threads of the docking piece 1 201 and the docking piece 202 are the same. The locking piece 203 includes a connecting sleeve 203a with internal threads, so when the docking piece is installed and the external threads of the docking piece 1 201 and the docking piece 202 are coaxial, the connecting sleeve 203a can slide between the external threads of the docking piece 1 201 and the docking piece 202 through the internal threads, and then the spacing between the docking piece 1 201 and the docking piece 2 202 is fixed through the threaded matching.

[0069] Furthermore, the locking member 203 also includes a limiting nut 203b disposed on the surface of the external thread. In this embodiment, there are two groups of limiting nuts 203b, and the two groups of limiting nuts 203b are respectively detachably threaded and slide on the external threads on the surfaces of the docking member 1 201 and the docking member 2 202. When the distance between the docking member 1 201 and the docking member 2 202 is fixed by the connecting sleeve 203a, the limiting nuts 203b on both sides are respectively screwed and squeezed to squeeze the connecting sleeve 203a, so as to limit the connecting sleeve 203a, prevent it from being accidentally touched and causing the thread to slide, and delay the loosening of the connecting sleeve 203a after long-term use. In order to facilitate installation and replacement, in this embodiment, the cross-section of the outer surface of the connecting sleeve 203a is set to the same hexagon as the limiting nut 203b, so that the operator can perform unified operations with the same type of wrench.

[0070] The rest of the structure is the same as that of Example 3.

[0071] A method for using a detachable knife switch mechanical locking device:

[0072] When the gaps of the limiting assembly 100 are set to be no less than two groups: first, the two adjacent limiting parts 102 are surrounded by the limiting grooves 101 to surround the knife switch locking rod and the auxiliary fixing object, and then the gaps between the two groups of limiting parts 102 are installed and connected through the connecting assembly 200, and then the remaining groups of limiting parts 102 are installed and connected with the current two groups of limiting parts 102 in sequence through the connecting assembly 200, until the knife switch locking rod and the auxiliary fixing object are completely surrounded and fixed;

[0073] The installation and connection method of the connecting component 200 is as follows: first, two limiting nuts 203b are respectively installed on the external threads of the docking piece 1 201 and the docking piece 202 on both sides of the notch through threaded sliding, and the limiting nuts 203b are rotated as far away from the notch as possible, and then the connecting sleeve 203a is installed on the external threads of the docking piece 1 201 through threads, and as many internal threads of the connecting sleeve 203a as possible are connected to the external threads of the docking piece 1 201. The connecting sleeve 203a can be screwed until all the internal threads are connected to the external threads of the docking piece 1 201, and then the strip segment 102a where the docking piece 1 201 and the docking piece 202 are located are aligned, so that the external thread centers of the docking piece 1 201 and the docking piece 202 are coaxial, and the distance between the docking piece 1 201 and the docking piece 202 is maintained as needed. The distance between the two pieces is fixed. Then the connecting sleeve 203a is rotated in the reverse direction so that the internal thread of the connecting sleeve 203a gradually slides out of the external thread of the docking piece 1 201. Then the internal thread of the connecting sleeve 203a cooperates with the external thread of the docking piece 202 and the thread slides. When the internal thread of the connecting sleeve 203a is connected with the external threads of the docking piece 1 201 and the docking piece 202 at the same time, the distance between the docking piece 1 201 and the docking piece 202 is fixed. At this time, the connecting sleeve 203a is rotated so that the internal thread of the connecting sleeve 203a is close to the external thread connection part of the docking piece 1 201 and the docking piece 202 so that the forces on both sides are balanced. Then the limiting nut 203b on the docking piece 1 201 and the docking piece 202 is threadedly slid to squeeze the connecting sleeve 203a to fix the connecting sleeve 203a.

[0074] When it is necessary to operate the knife switch or replace the knife switch mechanical locking device, the limiting nut 203b of the docking piece 1 201 on any notch side can be first screwed away from the connecting sleeve 203a, and then the connecting sleeve 203a can be screwed to slide toward the same side thread, so that the internal thread of the connecting sleeve 203a is disengaged from the external thread of the docking piece 202 on the other side, and then the docking piece 1 201 and the docking piece 202 on both sides of the notch are disassembled and separated, and the docking piece 1 201 and the docking piece 2 202 on the other sides of the notch are disassembled and separated in the same way, and the disassembly action is completed. The installation process when the knife switch is operated or a new knife switch mechanical locking device is used has been described above and will not be repeated, so the replacement process can be completed without power outage;

[0075] When the gap of the limiting component 100 is set as one group: first, the two groups of limiting parts 102 are rotated by the rotating shaft of the rotation center 103, so that the size of the gap between the two groups of limiting parts 102 can be adjusted with the rotation. The gap is enlarged by the rotation, so that the knife gate locking rod and the auxiliary fixing object pass into the limiting groove 101, and then the gap is reduced by rotation until the docking piece 1 201 on both sides of the gap is aligned with the strip segment 102a where the docking piece 202 is located, so that the external thread center of the docking piece 1 201 and the docking piece 2 202 are coaxial. At this time, the strip grooves 102c of the two groups of limiting parts 102 are also parallel in the same direction. The size of the formed limiting groove 101 can be adjusted by moving the two groups of limiting parts 102 closer or farther away along the direction of the strip groove 102c, and then the distance between the docking piece 1 201 and the docking piece 2 202 on both sides of the gap is fixed by the locking piece 203 to complete the limiting locking of the knife gate locking rod. The installation and removal process of the locking member 203 and the docking member 1 201 and the docking member 202 is consistent with the above process and will not be repeated here.

[0076] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0077] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0078] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0079] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A detachable knife switch mechanical locking device, characterized in that: include, A limiting assembly (100) comprising a limiting groove (101) capable of accommodating a knife switch locking rod and an auxiliary fixing object to pass through, and at least one group of notches for the knife switch locking rod and the auxiliary fixing object to pass through; as well as, A connecting assembly (200) is detachably mounted at the notch of the limiting assembly (100); when the connecting assembly (200) is mounted at the notch, the limiting groove (101) blocks the knife switch locking rod from being separated from the auxiliary fixture in the operating direction.

2. The detachable knife switch mechanical locking device according to claim 1, characterized in that: The connecting component (200) comprises a first docking component (201) and a second docking component (202) respectively arranged on the limiting components (100) at both sides of the notch, a locking component (203) being connected between the first docking component (201) and the second docking component (202), and the locking component (203) being used to fix the distance between the first docking component (201) and the second docking component (202); Wherein, the docking member 1 (201) and the limiting assembly (100), or / and the docking member 2 (202) and the limiting assembly (100), or / and the locking member (203) and the docking member 1 (201) and the docking member 2 (202) are detachably connected.

3. The detachable knife switch mechanical locking device according to claim 2, characterized in that: The notches are provided with at least two groups, the limiting assembly (100) is divided into a plurality of limiting parts (102) by at least two groups of notches, two adjacent limiting parts (102) are detachably connected at the notches by a connecting assembly (200), and the limiting groove (101) is formed between the limiting parts (102) connected by the connecting assembly (200).

4. The detachable knife switch mechanical locking device according to claim 2, characterized in that: The notch is provided with a group, and the limiting assembly (100) further comprises a group of rotation centers (103). The rotation centers (103) and the notch separate the limiting assembly (100) into two groups of limiting portions (102), and the two groups of limiting portions (102) are rotationally connected via the rotation centers (103).

5. The detachable knife switch mechanical locking device according to claim 3 or 4, characterized in that: The limiting portion (102) comprises a plurality of groups of strip segments (102a) and arc segments (102b) connected in sequence, at least one group of the strip segments (102a) is connected to the notch, and the docking piece 1 (201) and the docking piece 2 (202) are both arranged on the strip segment (102a) connected to the notch.

6. The detachable knife switch mechanical locking device according to claim 4, characterized in that: The rotation center (103) is a rotating shaft that passes through the two groups of limiting parts (102), and the two groups of limiting parts (102) are both provided with a strip groove (102c) that is slidably connected to the rotating shaft.

7. The detachable knife switch mechanical locking device according to claim 5, characterized in that: The radius size of the arc segment (102b) is matched with the shape of the knife switch locking rod, or the radius size of the arc segment (102b) is matched with the shape of the auxiliary fixing object.

8. The detachable knife switch mechanical locking device according to claim 6 or 7, characterized in that: The first docking piece (201) and the second docking piece (202) are both external threads provided on the surface of the strip segment (102a) and in the same direction; The locking member (203) comprises a connecting sleeve (203a) provided with an internal thread. When the centers of the external threads of the first docking member (201) and the second docking member (202) are coaxial, the connecting sleeve (203a) slides through the threads between the internal thread and the external thread.

9. The detachable knife switch mechanical locking device according to claim 8, characterized in that: The locking member (203) further comprises a limiting nut (203b) arranged on the outer thread surface.

10. A method for using a detachable knife switch mechanical locking device, using the detachable knife switch mechanical locking device according to claim 9, characterized in that: Follow these steps: The knife switch locking rod and the auxiliary fixing object are placed into the limiting groove (101) formed by at least two limiting parts (102) through the notch; The gaps between two adjacent groups of limiting portions (102) are installed and connected via a connecting assembly (200); The remaining groups of limiting parts (102) are connected in sequence through the connecting components (200) to complete the installation; When replacement is required, disassemble the mechanical locking device of the knife switch by the reverse steps of the above steps, and then install it by the above steps to complete the replacement; The method for installing and connecting the connection assembly (200) comprises: Install two limiting nuts (203b) on the external threads of the docking piece 1 (201) and the docking piece 2 (202) on both sides of the notch respectively; Installing the connecting sleeve (203a) on the external thread of the docking piece 1 (201) via threads; Align the strip segments (102a) where the first docking piece (201) and the second docking piece (202) are located, so that the centers of the external threads of the two are coaxial; Adjust the distance between the first docking piece (201) and the second docking piece (202) as needed; The connecting sleeve (203a) is screwed in the reverse direction, so that the internal thread of the connecting sleeve (203a) is matched with the external thread of the second docking member (202) to slide in the threads; The limiting nuts (203b) on the docking piece 1 (201) and the docking piece 2 (202) are both threadedly slid onto the extruded connecting sleeve (203a) to fix the connecting sleeve (203a).

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