Operating mechanism of direct-acting three-position disconnecting switch

Abstract

The invention relates to the technical field of disconnecting switches of power systems, in particular to an operating mechanism of a direct-acting three-station disconnecting switch, which comprises a main body component, a high-voltage switch device, an operating panel arranged on the high-voltage switch device, an operating assembly arranged on the operating panel and an output assembly arranged on the operating assembly, the limiting assembly is connected with the output assembly; the functional component comprises a reset assembly arranged on the operation assembly and a limiting assembly arranged on the operation assembly, when the limiting assembly is in a closed state, the lower portion of the limiting assembly can press the limiting assembly by shifting the operation assembly to move towards the side edge, locking electric operation is achieved, in the process, the operation assembly can drive the output assembly to rotate, and locking electric operation is achieved. And the other hole is closed to realize operation locking. And after the operating handle is inserted, the output assembly is limited, and when the handle is rotated and the switch is in place, the limiting assembly can accurately indicate the state of the switch and form position locking.

Description

Technical Field

[0001] The invention relates to the technical field of disconnectors for power systems, in particular to an operating mechanism for a direct-acting three-position disconnector. Background Art

[0002] Direct-acting disconnectors have the advantages of intuitive and easy operation, simple maintenance, and large current carrying capacity. Therefore, in order to promote the use of direct-acting disconnectors, a safer and more reliable operating mechanism is needed. At the same time, in order to achieve the gradual miniaturization of disconnectors, current disconnectors mostly adopt a three-position solution, which reduces space occupation while also putting forward higher requirements on the safety and reliability of the operating mechanism of the three-position disconnector.

[0003] At present, there are many single-hole operating mechanisms for direct-acting three-position disconnecting switches on the market, that is, one operating hole and a group of transmission modules control the opening and closing and grounding of the three-position switch, which has a certain risk of misoperation under actual working conditions; electric operation is more efficient and convenient for the disconnecting switch operating mechanism, and some operating mechanisms on the market currently do not have reliable flashlight switching capabilities; some operating mechanisms do not have position locking devices, and there is no obvious mechanical or electrical feedback whether the operation is in place. Operators can only rely on signs and the number of turns to judge whether the switch is in place, and the operation reliability is poor. Although some operating mechanisms have position locking devices, their structures are complex, not precise enough, and the locking is unreliable; some operating mechanisms have low transmission efficiency, which makes it time-consuming and labor-intensive to drive the three-position disconnecting switch, and may cause a decrease in positioning accuracy. Summary of the invention

[0004] In view of the problems that the single-hole operating mechanism in the above or prior art has poor operating reliability, complex structure, insufficient precision and unreliable locking, the present invention is proposed.

[0005] Therefore, an object of the present invention is to provide an operating mechanism for a direct-acting three-position disconnector.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising:

[0007] The main body component includes a high-voltage switch device, an operating panel provided on the high-voltage switch device, an operating component provided on the operating panel, an output component provided on the operating component, and a limit component connected to the output component;

[0008] The functional component includes a reset component arranged on the operating component and a limit component arranged on the operating component.

[0009] As a preferred solution of the operating mechanism of the direct-acting three-position disconnector of the present invention, the operating assembly includes a reset fixing plate arranged in the high-voltage switch device, an interlocking plate arranged outside the reset fixing plate, a slide groove provided on the interlocking plate, and a slide rod arranged in the slide groove;

[0010] Wherein, the sliding rod is connected to the reset fixing plate, and the interlocking plate can slide outside the reset fixing plate.

[0011] As a preferred solution of the operating mechanism of the direct-acting three-position disconnector of the present invention, wherein: a hole is provided on the operating plate, and an arc-shaped groove is provided on the operating plate;

[0012] The output assembly includes a connecting rod arranged outside the interlocking plate, a shifting rod arranged at the end of the connecting rod, an operation hole baffle arranged at the end of the shifting rod, and a positioning rod arranged in the middle of the operation hole baffle.

[0013] As a preferred solution of the operating mechanism of the direct-acting three-position disconnector of the present invention, wherein: a guide groove is provided on the operating plate;

[0014] The limiting assembly includes a limiting plate arranged at the end of the operating hole baffle, a limiting column arranged at the end of the limiting plate, a position indicating plate connected to the operating plate, and a contact opening opened outside the position indicating plate.

[0015] As a preferred solution of the operating mechanism of the direct-acting three-position disconnector of the present invention, the reset assembly includes a sliding rod arranged on the side of the interlocking plate, and an elastic member 1 sleeved on the outside of the sliding rod.

[0016] As a preferred solution of the operating mechanism of the direct-acting three-position disconnector of the present invention, wherein: a protrusion is provided on the top of the interlocking plate, and a notch is provided on the bottom of the interlocking plate;

[0017] The limiting assembly includes a circuit breaker locking electromagnet installed on the operating panel above the interlocking plate, a manual switching micro switch located at the notch position on the operating panel, and a pressing member on the manual switching micro switch;

[0018] Wherein, the pressing piece conflicts with the notch.

[0019] As a preferred solution of the operating mechanism of the direct-acting three-position disconnector of the present invention, wherein: a locking component;

[0020] The invention comprises a connecting component arranged at the end of the operating component, a receiving component arranged outside the connecting component, and a fastening component arranged and connected to the high-voltage switch device.

[0021] As a preferred solution of the operating mechanism of the direct-acting three-position disconnector of the present invention, the connecting assembly includes an input crank arm arranged outside the interlocking plate, an interlocking bracket arranged at the end of the input crank arm, and an output crank arm arranged at the end of the interlocking bracket.

[0022] As a preferred solution of the operating mechanism of the direct-acting three-position disconnector of the present invention, the receiving component includes a baffle arranged at the end of the output crank arm, a square steel arranged on the side of the baffle, two elastic parts sleeved on the outside of the square steel, and a closing cam arranged at the end of the square steel.

[0023] As a preferred solution of the operating mechanism of the direct-acting three-position disconnector of the present invention, the fastening assembly includes a closing electromagnet arranged on the baffle, a sprocket arranged in the high-voltage switch device, and a chain arranged outside the sprocket.

[0024] The beneficial effects of the operating mechanism of the direct-acting three-position disconnector of the present invention are as follows: when the limiting component is closed, the operating component is moved to the side, at which time the lower part of the operating component will press the limiting component to achieve locked electric operation. During this process, the operating component will drive the output component to rotate and close another hole to achieve operational locking; then, after inserting the operating handle, the output component will be restricted, and the moving parts connected to it will also be locked. Turn the handle, and when the switch is in place, the limit component can accurately indicate the switch state and form a position lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] 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 work.

[0026] Figure 1 It is an overall schematic diagram of the operating mechanism of a direct-acting three-position disconnect switch.

[0027] Figure 2 This is a schematic diagram of the internal structure of the operating mechanism of a direct-acting three-position disconnect switch.

[0028] Figure 3 This is a schematic diagram of the output component and limit component structure of the operating mechanism of a direct-acting three-position isolating switch.

[0029] Figure 4 This is a schematic diagram of the operating component structure of the operating mechanism of a direct-acting three-position disconnect switch.

[0030] Figure 5This is a schematic diagram of the structure of the connecting components and receiving components of the operating mechanism of a direct-acting three-position disconnector.

[0031] Figure 6 This is a schematic diagram of the fastening assembly structure of the operating mechanism of a direct-acting three-position disconnect switch. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned 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.

[0033] 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.

[0034] 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.

[0035] Example 1, reference Figures 1 to 4 , which is the first embodiment of the present invention, and provides an operating mechanism of a direct-acting three-position disconnector, comprising a main body component 100, including a high-voltage switch device 101, an operating panel 102 arranged on the high-voltage switch device 101, an operating assembly 103 arranged on the operating panel 102, an output assembly 104 arranged on the operating assembly 103, and a limit assembly 105 connected to the output assembly 104; a functional component 200, including a reset assembly 201 arranged on the operating assembly 103, and a limit assembly 205 arranged on the operating assembly 103. 02. When the limiting component 202 is closed, the operating component 103 is moved to the side. At this time, the lower part of the operating component 103 will press the limiting component 202 to achieve the locked electric operation. During this process, the operating component 103 will drive the output component 104 to rotate and close the other hole 102b to achieve the operation lock; then, after inserting the operating handle, the output component 104 will be restricted, and the moving parts connected to it will also be locked. Turn the handle. When the switch is in place, the limit component 105 can accurately indicate the switch state and form a position lock.

[0036] Example 2, reference Figure 1 to Figure 4, which is the second embodiment of the present invention. Different from the previous embodiment, the operating assembly 103 includes a reset fixing plate 103a arranged in the high-voltage switch device 101, an interlocking plate 103b arranged outside the reset fixing plate 103a, a slide groove 103c opened on the interlocking plate 103b, and a slide rod 103d arranged in the slide groove 103c; wherein the slide rod 103d is connected to the reset fixing plate 103a, and the interlocking plate 103b can slide outside the reset fixing plate 103a. The high-voltage switch device 1 01 is equipped with an operating panel 102 outside, a reset fixing plate 103a is installed on the high voltage switch device 101, an interlocking plate 103b is arranged at the position of the reset fixing plate 103a, and a pair of sliding grooves 103c are provided on the interlocking plate 103b, a sliding rod 103d is movably connected in the pair of sliding grooves 103c, and the sliding rod 103d is connected to the reset fixing plate 103a. At this time, the interlocking plate 103b can slide left and right relative to the reset fixing plate 103a, and the sliding stroke satisfies the rotation stroke of the output component 104.

[0037] Furthermore, a hole 102b is provided on the operating plate 102, and an arc-shaped groove 102a is provided on the operating plate 102; the output assembly 104 includes a connecting rod 104a arranged outside the interlocking plate 103b, a lever 104b arranged at the end of the connecting rod 104a, an operating hole baffle 104c arranged at the end of the lever 104b, and a positioning rod 104d arranged in the middle of the operating hole baffle 104c, the end of the interlocking plate 103b is rotatably connected to the connecting rod 104a, the connecting rod 104a is fixedly connected to the lever 104b at a position corresponding to the arc-shaped groove 102a on the operating plate 102, and the end of the connecting rod 104a away from the interlocking plate 103b is rotatably connected to An operation hole baffle 104c is connected, and a corresponding hole is opened on the operation hole baffle 104c corresponding to the position of the hole 102b on the operation plate 102. A positioning rod 104d is also provided in the middle of the operation hole baffle 104c, and the end of the positioning rod 104d is connected to the main body of the high-voltage switch device 101. Clockwise or counterclockwise turning the paddle can drive the interlocking plate 103b to move sideways. At this time, the lower part of the interlocking plate 103b will press the limiting component 202 to lock the electric operation, and the connecting rod 104a drives the operation hole baffle 104c to rotate, and the operation hole baffle 104c exposes one hole 102b and closes the other operation hole at the same time, thereby realizing operation locking.

[0038] Furthermore, a guide groove 102c is provided on the operating plate 102; the limiting assembly 105 includes a limiting plate 105a provided at the end of the operating hole baffle 104c, a limiting column 105b provided at the end of the limiting plate 105a, a position indicating plate 105c connected to the operating plate 102, and a contact opening 105d provided outside the position indicating plate 105c, and the end of the operating hole baffle 104c away from the connecting rod 104a is rotatably connected to a pair of limiting plates 105a, the pair of limiting plates 105a is arranged in an inclined shape, and the ends of the pair of limiting plates 105a are rotatably connected to the limiting column 105b, and the limiting column 105b is movably connected in the guide groove 102c, and the operating plate 102 is located between the pair of limiting plates 104c and the limiting column 105b. 5a is rotatably connected with a position indicating plate 105c, the operation hole baffle 104c drives the limit plate 105a to rotate, and the limit column 105b on the limit plate 105a slides to the specified position along the guide groove 102c of the operation panel 102. After the operation handle is inserted, the operation hole baffle 104c is stuck by the operation handle, and the moving parts connected thereto are also locked, so that all moving parts on the operation panel are locked; rotate the position indicating plate 105c, when the switch is in place, the protruding position on the position indicating plate 105c rotates to the limit column 105b and is stuck by the limit column 105b, the handle can no longer be operated, and the position indicating plate 105c can accurately indicate the switch state and form a position lock.

[0039] Furthermore, the reset assembly 201 includes a sliding rod 201a disposed on the side of the interlocking plate 103b, and an elastic member 201b sleeved on the outside of the sliding rod 201a. The side of the interlocking plate 103b is fixedly connected to the sliding rod 201a, and the sliding rod 201a is slidably connected to the side of the reset fixing plate 103a. At the same time, an elastic member 201b is disposed between the side of the interlocking plate 103b and the reset fixing plate 103a, and the elastic member 201b is sleeved on the sliding rod 201a. Rod 201a, when the connecting rod 104a is rotated, the interlocking plate 103b drives the elastic member 201b to be compressed to the right. After the handle is inserted into the operating hole, the moving parts are locked. When the operating handle is pulled out and the elastic member 201b recovers to its original length, the interlocking plate 103b is pushed to reset. At the same time, the interlocking plate 103b drives the connecting rod 104a, the connecting rod 104a drives the operating hole baffle 104c, and the operating hole baffle 104c drives the limiting plate 105a to realize the reset of each moving part.

[0040] Furthermore, a protrusion 103e is provided on the top of the interlocking plate 103b, and a notch 103f is provided on the bottom of the interlocking plate 103b; the limiting assembly 202 includes a circuit breaker locking electromagnet 202a installed on the operating panel 102 above the interlocking plate 103b, a manual switching micro switch 202b provided on the operating panel 102 at the notch 103f position, and a pressing member 202c provided on the manual switching micro switch 202b; wherein the pressing member 202c is in conflict with the notch 103f, the operating panel 102 is provided with a circuit breaker locking electromagnet 202a at a position above the interlocking plate 103b in the moving direction, and a protrusion 103 is provided on the top of the interlocking plate 103b at the position of the circuit breaker locking electromagnet 202a. e. A notch 103f is provided at the bottom of the interlocking plate 103b, and a manual switching micro switch 202b is installed on the operating panel 102 at the position of the notch 103f of the interlocking plate 103b. A pressing piece 202c is provided on the manual switching micro switch 202b, and the pressing piece 202c conflicts with the notch 103f. If the locking electromagnet of the circuit breaker locking electromagnet 202a is attracted, the protrusion 103e will not be restricted by the circuit breaker locking electromagnet 202a. At this time, turning the dial plate clockwise or counterclockwise can drive the interlocking plate 103b to move sideways. At this time, the lower part of the interlocking plate 103b will conflict with the pressing piece 202c and deform. The pressing piece 202c will press the auxiliary contact of the flashlight switching micro switch to lock the electric operation.

[0041] The rest of the structure is the same as that of Example 1.

[0042] Example 3, reference Figure 1 to Figure 6 , which is the third embodiment of the present invention. Different from the previous embodiment, the locking component 300 includes a connecting component 301 arranged at the end of the operating component 103, a receiving component 302 arranged outside the connecting component 301, and a fastening component 303 connected to the high-voltage switch device 101. During the sliding process of the above-mentioned operating component 103, the connecting component 301 will be driven to rotate. At this time, the connecting component 301 will toggle the receiving component 302 to descend, and then block the fastening component 303 through the receiving component 302, so that it cannot be electrically closed. When the circuit breaker is in the closed state, the receiving component 302 will be blocked by the fastening component 303 and cannot move downward, that is, the operating component 103 cannot slide to the right, thereby realizing the locking of the three-position disconnector when the circuit breaker is closed.

[0043] Specifically, the connecting assembly 301 includes an input crank arm 301a disposed outside the interlocking plate 103b, an interlocking bracket 301b disposed at the end of the input crank arm 301a, and an output crank arm 301c disposed at the end of the interlocking bracket 301b. The receiving assembly 302 includes a baffle 302a disposed at the end of the output crank arm 301c, a square steel 302b disposed on the side of the baffle 302a, an elastic member 302c sleeved outside the square steel 302b, and a closing cam 302 disposed at the end of the square steel 302b. d, the fastening assembly 303 includes a closing electromagnet 303a arranged on the baffle plate 302a, a sprocket 303b arranged in the high-voltage switch device 101, and a chain 303c arranged outside the sprocket 303b, the side of the interlocking plate 103b is rotatably connected to the input crank arm 301a, and the end of the input and output crank arm is fixedly connected to the interlocking bracket 301b, and the interlocking bracket 301b is rotatably connected to the operating panel 102, and the outer side of the end of the interlocking bracket 301b away from the input crank arm 301a is fixedly connected There is an output crank arm 301c, and the end of the output crank arm 301c is also rotatably connected to the output arm, the bottom end of the output arm is fixedly connected to a baffle 302a, the side of the baffle 302a is fixedly connected to a square steel 302b, the square steel 302b is also sleeved with an elastic member 302c, and a cam 302d is also provided under the end of the square steel 302b. When the lever 104b is moved to drive the interlocking plate 103b to move sideways, the input crank arm 301a drives the interlocking bracket 301b to rotate, and the output crank arm 301c rotates with the interlocking bracket 301b. The lock bracket 301b rotates, causing the baffle 302a to block the closing electromagnet 303a downward, making it impossible to close the circuit breaker electrically. When the circuit breaker is in the closed state, the square steel 302b will be blocked by the closing cam 302d and cannot move downward, that is, the interlocking plate 103b cannot move to the right, and the connecting rod 104a is stuck, realizing the locking of the three-position disconnector when the circuit breaker is closed. Similarly, when the operating handle is pulled out, the second elastic member 302c pushes the square steel 302b to reset, so that the entire circuit breaker interlocking mechanism is reset;

[0044] In addition, the mechanism adopts a sprocket 303b transmission group form for external output. The output sprocket 303b is installed at the end of the output shaft of the mechanism, and is arranged in a triangle with the sprockets 303b on the B and C phase input shafts of the three-position switch. The chain 303c is used to connect the transmission. The sprocket 303b of the A phase input shaft is driven by the B phase. When the mechanism outputs torque, the output sprocket 303b directly drives the B and C phase three-position switches to rotate, and the A phase input shaft is driven by the B phase to rotate. The sprocket 303b is arranged in a triangle, which reduces the use of the sprocket 303b and avoids the use of large gears or multiple gear sets for transmission. The structure is stable, and the chain 303c can be tensioned to reduce transmission losses and avoid tooth disengagement.

[0045] The rest of the structure is the same as that of Example 2.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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 may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An operating mechanism for a direct-acting three-position isolating switch, characterized in that: include, A main body component (100) comprises a high-voltage switch device (101), an operating panel (102) provided on the high-voltage switch device (101), an operating component (103) provided on the operating panel (102), an output component (104) provided on the operating component (103), and a limit component (105) connected to the output component (104); The functional component (200) comprises a reset component (201) arranged on the operating component (103), and a limit component (202) arranged on the operating component (103).

2. The operating mechanism of the direct-acting three-position disconnector according to claim 1 is characterized in that: The operating assembly (103) comprises a reset fixing plate (103a) arranged in the high-voltage switch device (101), an interlocking plate (103b) arranged outside the reset fixing plate (103a), a sliding groove (103c) provided on the interlocking plate (103b), and a sliding rod (103d) arranged in the sliding groove (103c); The sliding rod (103d) is connected to the reset fixing plate (103a), and the interlocking plate (103b) can slide outside the reset fixing plate (103a).

3. The operating mechanism of the direct-acting three-position disconnector according to claim 2 is characterized in that: The operating panel (102) is provided with a hole (102b), and the operating panel (102) is provided with an arc-shaped groove (102a); The output assembly (104) comprises a connecting rod (104a) arranged outside the interlocking plate (103b), a shifting rod (104b) arranged at the end of the connecting rod (104a), an operating hole baffle (104c) arranged at the end of the shifting rod (104b), and a positioning rod (104d) arranged in the middle of the operating hole baffle (104c).

4. The operating mechanism of the direct-acting three-position disconnector according to claim 3 is characterized in that: The operating plate (102) is provided with a guide groove (102c); The limiting assembly (105) comprises a limiting plate (105a) arranged at the end of the operating hole baffle (104c), a limiting column (105b) arranged at the end of the limiting plate (105a), a position indicating plate (105c) connected to the operating plate (102), and a contact opening (105d) opened outside the position indicating plate (105c).

5. The operating mechanism of the direct-acting three-position disconnector according to claim 4, characterized in that: The reset assembly (201) comprises a sliding rod (201a) arranged on the side of the interlocking plate (103b), and an elastic member (201b) sleeved on the outside of the sliding rod (201a).

6. The operating mechanism of the direct-acting three-position disconnector according to claim 5, characterized in that: The top of the interlocking plate (103b) is provided with a protrusion (103e), and the bottom of the interlocking plate (103b) is provided with a notch (103f); The limiting assembly (202) comprises a circuit breaker locking electromagnet (202a) installed on the operating panel (102) above the interlocking plate (103b), a manual switching micro switch (202b) located on the operating panel (102) at the position of the notch (103f), and a pressing member (202c) provided on the manual switching micro switch (202b); Wherein, the pressing member (202c) is in conflict with the notch (103f).

7. The operating mechanism of the direct-acting three-position disconnector according to claim 5 or 6, characterized in that: A locking member (300); It comprises a connecting component (301) arranged at the end of an operating component (103), a receiving component (302) arranged outside the connecting component (301), and a fastening component (303) arranged and connected to the high-voltage switch device (101).

8. The operating mechanism of the direct-acting three-position disconnector according to claim 7, characterized in that: The connection assembly (301) comprises an input crank arm (301a) arranged outside the interlocking plate (103b), an interlocking bracket (301b) arranged at the end of the input crank arm (301a), and an output crank arm (301c) arranged at the end of the interlocking bracket (301b).

9. The operating mechanism of the direct-acting three-position disconnector according to claim 8, characterized in that: The receiving assembly (302) comprises a baffle (302a) arranged at the end of the output crank arm (301c), a square steel (302b) arranged on the side of the baffle (302a), a second elastic member (302c) sleeved on the outside of the square steel (302b), and a closing cam (302d) arranged at the end of the square steel (302b).

10. The operating mechanism of the direct-acting three-position disconnector according to claim 9, characterized in that: The fastening assembly (303) comprises a closing electromagnet (303a) arranged on the baffle (302a), a sprocket (303b) arranged in the high-voltage switch device (101), and a chain (303c) arranged outside the sprocket (303b).

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