Isolating switch padlock mechanism and operating mechanism

Abstract

The invention provides a padlock mechanism of an isolating switch, which comprises a base, a padlock piece and a main shaft, the main shaft is arranged on the base, the main shaft is used for transmitting rotary motion to actuate a contact system of the isolating switch to realize opening and closing, the padlock piece is arranged on the base in a sliding manner, and the padlock piece is arranged on the base. And the padlock piece can slide relative to the main shaft, so that the padlock piece and the main shaft can be switched from a separated state to a clamped state, and the main shaft is switched from a rotatable state relative to the base to a rotary motion which is limited. The padlock piece is clamped with the main shaft, so that the rotation of the main shaft relative to the base is limited, compared with the mode that the rotation of the main shaft is limited through a locking handle, the rotation of the main shaft relative to the base is directly locked through the padlock piece, the locking is more reliable, and the safety is higher.

Description

Technical Field

[0001] This invention relates to the field of disconnector switch technology, and specifically to a disconnector switch padlock mechanism and operating mechanism. Background Technology

[0002] Disconnect switches are used to operate circuits by opening or closing them, and they feature rapid opening or closing to minimize the effects of electric arcs. These switching devices are typically constructed so that an operator manually or with other tools operates an lever to open or close the stationary contact via a series of linked components. When disconnected, a disconnect switch isolates non-energized parts from energized parts, creating a clear break point to isolate faulty equipment or equipment undergoing power outage maintenance. During power outage maintenance of electrical equipment, isolating the equipment from the power supply prevents safety accidents. Disconnect switches are widely used in power distribution and automation systems in construction, power, petrochemical, and other industries. Disconnect switches are equipped with padlock mechanisms to prevent accidental closing; therefore, a simpler and more reliable padlock mechanism is desirable. Summary of the Invention

[0003] Therefore, in response to at least one of the above problems, the present invention provides a disconnector padlock mechanism and an operating mechanism.

[0004] This invention is implemented using the following scheme:

[0005] This invention proposes a padlock mechanism for a disconnecting switch, comprising a base, a padlock component, and a main shaft. The main shaft is mounted on the base and is used to transmit rotational motion to actuate the contact system of the disconnecting switch to achieve opening and closing. The padlock component is slidably mounted on the base and can slide relative to the main shaft, allowing the padlock component and the main shaft to switch from a separated state to an engaged state, thereby restricting the rotational motion of the main shaft from being rotatable relative to the base.

[0006] In one embodiment, the padlock is provided with a first locking structure and the main shaft is provided with a second locking structure. The first locking structure and the second locking structure are a set of protrusions and locking grooves that can engage with each other. The padlock can slide relative to the main shaft, so that the first locking structure and the second locking structure can switch from a separated state to an engaged state, thereby allowing the padlock and the main shaft to switch from a separated state to an engaged state.

[0007] In one embodiment, the padlock component has a protrusion as a first engaging structure, and the main shaft has a locking groove as a second engaging structure; the locking groove extends along the axial direction of the main shaft, and the padlock component can slide relative to the main shaft along the axial direction.

[0008] In one embodiment, the spindle includes a diameter-increasing portion and a clearance portion, the locking groove is disposed on the diameter-increasing portion of the spindle, and the clearance portion is formed on the spindle adjacent to the diameter-increasing portion.

[0009] In one embodiment, one end of the lock groove is provided with a stop block to limit the sliding range of the padlock.

[0010] In one embodiment, the padlock is provided with a padlock portion, and when the padlock slides upward, the padlock portion can be exposed on the base so that it can be locked.

[0011] In one embodiment, the base is provided with a sliding groove, the padlock is slidably disposed in the sliding groove, the side wall of the sliding groove is provided with a first limiting structure, and the padlock is provided with a second limiting structure. The cooperation of the first limiting structure and the second limiting structure limits the sliding of the padlock when the padlock is separated from the main shaft.

[0012] In one embodiment, the sidewall of the slide is provided with a groove as a first limiting structure, and the padlock is provided with a padlock protrusion as a second limiting structure. The padlock protrusion can engage with the groove for limiting. The lower part of the padlock is provided with a slot, so that the lower part of the padlock is divided into two legs, and the padlock protrusion is provided on one of the legs.

[0013] In one embodiment, the padlock component has a semi-circular groove at the root of the support leg where the padlock protrusion is located.

[0014] The present invention also proposes an operating mechanism for a disconnecting switch, characterized in that it includes the padlock mechanism as described above.

[0015] In one embodiment, the system further includes an energy storage linkage component; the energy storage linkage component includes a linkage shaft, a gear shaft, an energy storage element, a connecting rod, and a support shaft; the end of the main shaft is a bevel gear structure, the gear shaft includes a bevel gear structure, and the bevel gear structures of the main shaft and the gear shaft cooperate with each other; the gear shaft and the linkage shaft are fitted with cylindrical structures through shaft holes to achieve synchronous rotation; the linkage shaft drives the actuation mechanism of the contact head system; one end of the connecting rod is hinged to the base through the support shaft, and the other end of the connecting rod is provided with a sliding groove, in which the cylindrical structure of the linkage shaft passes through; the energy storage element is sleeved on the connecting rod, and its two ends abut against the cylindrical structures of the support shaft and the linkage shaft, respectively.

[0016] The technical solution provided by this invention has the following technical effects:

[0017] This invention provides a padlock mechanism for a disconnecting switch, including a base, a padlock component, and a main shaft. The main shaft is mounted on the base and transmits rotational motion to actuate the contact system of the disconnecting switch to achieve opening and closing. The padlock component is slidably mounted on the base and can slide relative to the main shaft, allowing the padlock component and the main shaft to switch from a disengaged state to an engaged state. This restricts the rotational movement of the main shaft relative to the base. The engagement of the padlock component with the main shaft restricts the rotation of the main shaft relative to the base. Compared to restricting the rotational movement of the main shaft by locking a handle, this invention directly locks the rotational movement of the main shaft relative to the base through the padlock component, resulting in more reliable locking and higher security. Attached Figure Description

[0018] Figure 1 This is a perspective view of the operating mechanism of the disconnector switch in this embodiment, with part of the base hidden and the padlock not pulled out;

[0019] Figure 2 This is a perspective view of the operating mechanism of the disconnector switch in this embodiment, with part of the base hidden and the padlock pulled out.

[0020] Figure 3 This is a partially exploded view of the base of the operating mechanism of the disconnect switch in this embodiment, with the latter portion hidden.

[0021] Figure 4 This is a perspective view of the padlock and the main shaft in the unengaged state, as well as the energy storage linkage component in this embodiment.

[0022] Figure 5 This is a perspective view of the padlock engagement state with the main shaft and the energy storage linkage component in this embodiment;

[0023] Figure 6 This is a side view of the padlock component in this embodiment;

[0024] Figure 7 This is a perspective view of the padlock component in this embodiment;

[0025] Figure 8 This is a partial view of the groove of the base in this embodiment;

[0026] Figure 9 This is a perspective view of the padlock component in this embodiment. Detailed Implementation

[0027] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention, primarily used to illustrate the embodiments and to explain the operating principles of the embodiments in conjunction with the relevant descriptions in the specification. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0028] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0029] like Figure 1-7 As shown, this embodiment provides an operating mechanism for a disconnecting switch, including a base 10, a padlock 20, a main shaft 30, and an energy storage linkage component 40. The energy storage linkage component 40 includes a linkage shaft 41, a gear shaft 42, an energy storage element 43, a connecting rod 44, and a support shaft 45.

[0030] The main shaft 30 is a gear shaft used to transmit rotational motion, such as the rotation of a handle. This rotational motion actuates the contact system of the disconnector switch to open or close the circuit. Specifically, the end of the main shaft 30 has a bevel gear structure, and the gear shaft 42 also includes a bevel gear structure. The bevel gear structures of the main shaft 30 and the gear shaft 42 cooperate with each other to achieve vertical power transmission. The gear shaft 42 and the linkage shaft 41 are mated with a cylindrical structure through shaft holes to achieve synchronous rotation. The linkage shaft 41 drives the actuation mechanism of the contact system. The rotation of the main shaft 30 causes the linkage shaft 41 to rotate, thereby driving the contact system to open or close the circuit.

[0031] One end of the connecting rod 44 is hinged to the base 10 via a support shaft 45, and the other end of the connecting rod 44 is provided with a groove, in which a cylindrical structure of the linkage shaft 41 passes. The energy storage element 43 can be a compression spring. The energy storage element 43 is sleeved on the connecting rod 44, and its two ends abut against the cylindrical structures of the support shaft 45 and the linkage shaft 41, respectively. When the linkage shaft 41 rotates, it drives the cylindrical structure to move within the groove, causing the energy storage element 43 to compress and store energy. When it reaches the dead center position, the stored energy is at its maximum. After rotating past the dead center, the energy storage element 43 releases energy, driving the linkage shaft 41 to rotate rapidly.

[0032] The base 10, padlock 20, and main shaft 30 form a padlock mechanism for the disconnecting switch, used to lock the rotation of the main shaft 30, thereby preventing the disconnecting switch from being accidentally closed. The padlock 20 is slidably mounted on the base 10 and can slide relative to the main shaft 30, allowing the padlock 20 and the main shaft 30 to switch from a disengaged state to an engaged state, thus changing the main shaft 30 from being rotatable relative to the base 10 to having its rotational movement restricted.

[0033] In other application scenarios, a padlock mechanism that restricts the rotational movement of the spindle by locking the handle can also be used to prevent the disconnect switch from being accidentally closed. However, in this embodiment, the padlock engages directly with the spindle, acting on it to restrict its rotation relative to the base. Compared to restricting the spindle's rotational movement by locking the handle, this embodiment directly locks the spindle's rotation relative to the base using the padlock, making the locking more reliable and providing higher security.

[0034] The padlock 20 has a first engaging structure, and the main shaft 30 has a second engaging structure. The first and second engaging structures are a set of protrusions and locking grooves that can engage with each other. When the padlock 20 slides relative to the main shaft 30, the first and second engaging structures can switch from a separated state to an engaged state, thereby locking the rotational movement of the main shaft 30. In some other embodiments, the padlock 20 and the main shaft 30 can be separated or engaged, for example, through a magnetic attraction structure, or through a clamping structure.

[0035] In this embodiment, the padlock 20 has a protrusion 21 as a first engaging structure, and the main shaft 30 has a locking groove 31 as a second engaging structure. The base 10 has a sliding groove 11, and the padlock 20 is slidably disposed within the sliding groove 11. When the padlock 20 slides upward, the protrusion 21 of the padlock 20 engages with the locking groove 31 of the main shaft 30, thereby restricting the rotational movement of the main shaft 30. The structure is simple and the locking is reliable. In this embodiment, the protrusion 21 is a protrusion structure. In some other embodiments, the protrusion 21 can also be a protruding post, a protruding point, etc.

[0036] The padlock 20 is provided with a padlock part 23. When the padlock 20 slides upward, the rotational movement of the main shaft 30 is restricted. At this time, the padlock part 23 protrudes outside the base 10 and can be padlocked. That is, the padlock 20 is locked in the position that restricts the rotational movement of the main shaft 30 by using the padlock part 23 to prevent accidental operation and improve safety.

[0037] Reference Figure 4-5 In this embodiment, the locking groove 31 extends along the axial direction of the main shaft 30, and the padlock member 20 can slide relative to the main shaft 30 along the axial direction, so that the protrusion 21 of the padlock member 20 can engage or disengage from the locking groove 31 of the main shaft 30. In some other embodiments, the padlock member 20 can also slide relative to the main shaft 30 in a direction perpendicular to the axial direction, so that the protrusion 21 of the padlock member 20 can engage or disengage from the locking groove 31 of the main shaft 30. However, this method results in an increase in the size of the base 10 in the direction perpendicular to the axial direction of the main shaft 30, and is not conducive to the effective setting of the padlock part. In this embodiment, the padlock member 20 can slide relative to the main shaft 30 along the axial direction, resulting in a smaller product size and easier setting of the padlock part.

[0038] The locking groove 31 is provided on the diameter-enlarged portion 32 of the main shaft 30. The main shaft 30 is adjacent to the diameter-enlarged portion 32 to form a clearance portion 33. When the protrusion 21 of the padlock 20 is separated from the locking groove 31 of the main shaft 30, the protrusion 21 of the padlock 20 is located within the range of the clearance portion 33 and does not contact the main shaft 30. The main shaft 30 forms a clearance structure with the protrusion 21 of the padlock 20 through the clearance portion 33.

[0039] One end of the lock groove 31 is provided with a stop block 311, which is used to limit the sliding range of the padlock 20 to prevent the padlock 20 from sliding out completely from the base 10 and affecting the normal use of the padlock 20.

[0040] The sidewall of the slide groove 11 is provided with a first limiting structure 12, and the padlock 20 is provided with a second limiting structure 22. The cooperation of the first limiting structure 12 and the second limiting structure 22 limits the sliding of the padlock 20 when it is separated from the main shaft 30. Specifically, when the padlock 20 slides downwards and the protrusion 21 separates from the locking groove 31, the first limiting structure 12 and the second limiting structure 22 cooperate to limit the movement, ensuring that the protrusion 21 and the locking groove 31 remain stably separated, preventing the padlock 20 from sliding out unintentionally and affecting the rotational movement of the main shaft 30. In this embodiment, the first limiting structure 12 and the second limiting structure 22 are a set of protrusions and grooves that can engage and limit each other. In other embodiments, the first limiting structure 12 and the second limiting structure 22 may also be a limiting structure including an elastic top ball, etc.

[0041] In this specific embodiment, the sidewall of the slide groove 11 is provided with a groove 12 as a first limiting structure 12, and the padlock member 20 is provided with a padlock protrusion 22 as a second limiting structure 22. The padlock protrusion 22 can engage with the groove 12 for limiting. The lower part of the padlock member 20 is provided with a slot 24, so that the lower part of the padlock member 20 is divided into two legs. The padlock protrusion 22 is provided on one of the legs. The padlock member 20 is more likely to undergo elastic deformation at this leg, so that the padlock protrusion 22 is more likely to engage with the groove 12, making the operation more convenient.

[0042] In this embodiment, the padlock 20 has a long groove 25 with a semi-circular cross-section at the root of the support leg where the padlock protrusion 22 is located, which further increases the elasticity of the support leg and makes operation more convenient.

[0043] Although the invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the invention without departing from the spirit and scope of the invention as defined in the appended claims, all of which shall be within the scope of protection of the invention.

Claims

1. A padlock mechanism for a disconnecting switch, comprising a base, a padlock component, and a main shaft, wherein the main shaft is mounted on the base, and the main shaft is used to transmit rotational motion to actuate the contact system of the disconnecting switch to achieve opening and closing, characterized in that, The padlock is slidably mounted on the base and can slide relative to the main shaft, so that the padlock and the main shaft can switch from a separated state to an engaged state, thereby restricting the rotational movement of the main shaft from being rotatable relative to the base.

2. The padlock mechanism according to claim 1, characterized in that: The padlock component is provided with a first locking structure, and the main shaft is provided with a second locking structure. The first locking structure and the second locking structure are a set of protrusions and locking grooves that can engage with each other. The padlock component can slide relative to the main shaft, so that the first locking structure and the second locking structure can switch from a separated state to an engaged state, thereby allowing the padlock component and the main shaft to switch from a separated state to an engaged state.

3. The padlock mechanism according to claim 2, characterized in that: The padlock component has a protrusion as a first locking structure, and the main shaft has a locking groove as a second locking structure; the locking groove extends along the axis of the main shaft, and the padlock component can slide relative to the main shaft along the axis.

4. The padlock mechanism according to claim 3, characterized in that: The spindle includes a diameter-increasing portion and a clearance portion. The locking groove is provided on the diameter-increasing portion of the spindle, and the clearance portion is formed on the spindle adjacent to the diameter-increasing portion.

5. The padlock mechanism according to claim 3, characterized in that: One end of the lock groove is provided with a stop block to limit the sliding range of the padlock.

6. The padlock mechanism according to claim 1, characterized in that: The padlock is provided with a padlock part. When the padlock slides upward, the padlock part can be exposed on the base so that it can be locked.

7. The padlock mechanism according to claim 1, characterized in that: The base is provided with a sliding groove, and the padlock is slidably disposed in the sliding groove. The side wall of the sliding groove is provided with a first limiting structure, and the padlock is provided with a second limiting structure. The cooperation of the first limiting structure and the second limiting structure limits the sliding of the padlock when it is separated from the main shaft.

8. The padlock mechanism according to claim 7, characterized in that: The sidewall of the slide is provided with a groove as a first limiting structure, and the padlock is provided with a padlock protrusion as a second limiting structure. The padlock protrusion can engage with the groove for limiting. The lower part of the padlock is provided with a slot, so that the lower part of the padlock is divided into two legs, and the padlock protrusion is provided on one of the legs.

9. The padlock mechanism according to claim 8, characterized in that: The padlock component has a long groove with a semi-circular cross-section at the root of the support leg where the padlock protrusion is located.

10. An operating mechanism for a disconnecting switch, characterized in that, Includes the padlock mechanism as described in any one of claims 1-9.

11. The operating mechanism according to claim 10, characterized in that: It also includes an energy storage linkage component; the energy storage linkage component includes a linkage shaft, a gear shaft, an energy storage element, a connecting rod, and a support shaft. The end of the main shaft is a bevel gear structure, and the gear shaft includes a bevel gear structure. The bevel gear structures of the main shaft and the gear shaft cooperate with each other. The gear shaft and the linkage shaft are fitted with a cylindrical structure through shaft holes to achieve synchronous rotation. The linkage shaft drives the actuation mechanism of the contact head system. One end of the connecting rod is hinged to the base through the support shaft, and the other end of the connecting rod is provided with a sliding groove in which the cylindrical structure of the linkage shaft passes. The energy storage element is sleeved on the connecting rod, and its two ends abut against the cylindrical structures of the support shaft and the linkage shaft, respectively.

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