Isolating switch padlock mechanism and operating mechanism

Abstract

The utility model provides an isolating switch padlock mechanism and an operating mechanism, the padlock mechanism comprises a base, a padlock member and a main shaft, the main shaft is installed on the base, the main shaft is used for transmitting rotation motion to actuate a contact system of an isolating switch to realize opening and closing, the padlock member is slidably installed on the base, and the padlock member is used for locking the contact system of the isolating switch. 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] The utility model relates to the technical field of isolating switches, in particular to a padlock mechanism and an operating mechanism of an isolating switch. Background Art

[0002] The isolating switch can be used to manipulate the opening or closing of the circuit, and has the function of rapid opening or closing to minimize the impact of the arc. This switching device is usually constructed so that the operator can operate the operating lever manually or through other tools to operate the moving contact to open or close the static contact through a series of linked components. When the isolating switch is disconnected, it can isolate the non-live part from the live part and create an obvious disconnection point to isolate the faulty equipment or the equipment that is undergoing power outage maintenance. When the electrical equipment is shut down for maintenance, the equipment that is undergoing power outage maintenance is isolated from the power supply to avoid safety accidents. Isolating switches are widely used in power distribution systems and automation systems in construction, electric power, petrochemical and other industries. The isolating switch is provided with a padlock mechanism to prevent the isolating switch from being accidentally closed. Therefore, it is desired to obtain a padlock mechanism that can have a simpler structure and can work more reliably. Utility Model Content

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

[0004] The utility model is implemented by the following scheme:

[0005] The present invention provides a padlock mechanism for an isolating switch, comprising a base, a padlock member, and a main shaft. The main shaft is mounted on the base, and is used to transmit rotational motion to actuate a contact system of the isolating switch to realize opening and closing. The padlock member is slidably mounted on the base, and the padlock member can slide relative to the main shaft, so that the padlock member and the main shaft can be switched from a separated state to an engaged state, thereby switching the main shaft from being rotatable relative to the base to having its rotational motion restricted.

[0006] In one embodiment, a first clamping structure is provided on the padlock member, and a second clamping structure is provided on the main shaft. The first clamping structure and the second clamping structure are a group of protrusions and lock grooves that can be clamped together. The padlock member can slide relative to the main shaft, so that the first clamping structure and the second clamping structure can be switched from a separated state to a clamped state, thereby enabling the padlock member and the main shaft to switch from a separated state to a clamped state.

[0007] In one embodiment, a protrusion is provided on the padlock as a first clamping structure, and a locking groove is provided on the main shaft as a second clamping structure; the locking groove extends along the axis of the main shaft, and the padlock can slide relative to the main shaft along the axis.

[0008] In one embodiment, the main shaft includes an increased diameter portion and an escape portion, the locking groove is provided on the increased diameter portion of the main shaft, and the escape portion is formed on the main shaft adjacent to the increased diameter portion.

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

[0010] In one embodiment, a padlock portion is provided on the padlock member, and when the padlock member slides upward, the padlock portion can be exposed from the base so as to be padlocked.

[0011] In one embodiment, a slide groove is provided on the base, and the padlock component is slidably arranged in the slide groove. The side wall of the slide groove is provided with a first limiting structure, and the padlock component is provided with a second limiting structure. By cooperating with the first limiting structure and the second limiting structure, the sliding of the padlock component is limited when the padlock component and the main shaft are in a separated state.

[0012] In one embodiment, a groove is provided on the side wall of the slide as a first limiting structure, and a padlock protrusion is provided on the padlock component as a second limiting structure, and the padlock protrusion can be engaged with the groove for limiting position; a slot is provided on the lower part of the padlock component, so that the lower part of the padlock component is divided into two legs, and the padlock protrusion is provided on one of the legs.

[0013] In one embodiment, the padlock member is provided with a long groove with a semicircular cross-section at the root of the supporting leg where the padlock protrusion is located.

[0014] The utility model also provides an operating mechanism of an isolating switch, which is characterized by comprising the padlock mechanism as described above.

[0015] Among them, in one embodiment, 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, 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 plugged into and matched with the cylindrical structure through the shaft hole to achieve synchronous rotation; the linkage shaft transmission connects the actuating mechanism of the contact 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 slide groove, and the cylindrical structure of the linkage shaft is passed through the slide groove; the energy storage element is sleeved on the connecting rod, and the two ends respectively abut against the support shaft and the cylindrical structure of the linkage shaft.

[0016] The technical solution provided by the utility model has the following technical effects:

[0017] The present invention provides a padlock mechanism for an isolating switch, comprising a base, a padlock and a main shaft, wherein the main shaft is mounted on the base, the main shaft is used to transmit rotational motion to actuate the contact system of the isolating switch to realize opening and closing, the padlock is slidably mounted on the base, the padlock can slide relative to the main shaft, so that the padlock and the main shaft can be switched from a separated state to an engaged state, thereby switching the main shaft from being rotatable relative to the base to having its rotational motion restricted. The padlock is engaged with the main shaft, so that the rotation of the main shaft relative to the base is restricted. Compared with limiting the rotational motion of the main shaft by locking the handle, the present invention directly locks the rotational motion of the main shaft relative to the base by the padlock, and the locking is more reliable and safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional diagram of the operating mechanism of the disconnector of this embodiment with a portion of the base hidden and the padlock not pulled out;

[0019] Figure 2 This is a three-dimensional diagram of the operating mechanism of the disconnector of this embodiment with a portion of the base hidden and the padlock member pulled out;

[0020] Figure 3 This is a partial exploded view of the operating mechanism of the disconnector in this embodiment, with part of the base hidden;

[0021] Figure 4 is a three-dimensional diagram of the padlock and the main shaft in the unengaged state and the energy storage linkage component of this embodiment;

[0022] Figure 5 This is a three-dimensional diagram of the engagement state of the padlock and the main shaft and the energy storage linkage component of this embodiment;

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

[0024] Figure 7 is a perspective view of the padlock member of this embodiment;

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

[0026] Figure 9 2 is a perspective view of the padlock of this embodiment. DETAILED DESCRIPTION

[0027] To further illustrate various embodiments, the present invention is provided with accompanying drawings. These drawings form part of the disclosure of this invention and are primarily used to illustrate the embodiments and, in conjunction with the relevant description in the specification, to explain the operating principles of the embodiments. By referring to these drawings, those skilled in the art will understand other possible implementations and the advantages of this invention. The components in the figures are not drawn to scale, and similar reference numerals are generally used to represent similar components.

[0028] The present invention will now be further described with reference to the accompanying drawings and specific implementation methods.

[0029] like Figure 1-7 As shown, this embodiment provides an operating mechanism for an isolating switch, comprising a base 10, a padlock 20, a main shaft 30, and an energy storage linkage member 40. The energy storage linkage member 40 comprises 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, which is used to transmit rotational motion, such as the rotational motion of the handle. The rotational motion can actuate the contact system of the disconnector to achieve opening and closing. Specifically, the end of the main shaft 30 is 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 plugged into the cylindrical structure through the shaft hole to achieve synchronous rotation. The linkage shaft 41 drives the actuating mechanism of the contact system. The rotation of the main shaft 30 realizes the rotation of the linkage shaft 41, thereby driving the contact system to achieve opening and closing.

[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 slide groove, in which the cylindrical structure of the linkage shaft 41 is inserted. 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 respectively abut against the support shaft 45 and the cylindrical structure of the linkage shaft 41. When the linkage shaft 41 rotates, it drives the cylindrical structure to move in the slide groove, driving the energy storage element 43 to compress and store energy. When it reaches the dead point, the energy storage is maximum; after rotating past the dead point, the energy storage element 43 releases energy, driving the linkage shaft 41 to rotate rapidly.

[0032] The base 10, padlock 20, and spindle 30 form the isolator's padlock mechanism, which locks the spindle 30's rotation to prevent accidental closing. The padlock 20 is slidably mounted on the base 10. It slides relative to the spindle 30, allowing the padlock 20 and spindle 30 to switch from a disengaged state to an engaged state, thereby restricting the spindle 30's rotation relative to the base 10.

[0033] In other application scenarios, a padlock mechanism that restricts the rotational movement of the main shaft by locking the handle can also be used to prevent the disconnector from being accidentally closed. However, this embodiment uses a padlock member that engages with the main shaft and can directly act on the main shaft to restrict the rotation of the main shaft relative to the base. Compared to restricting the rotational movement of the main shaft by locking the handle, this embodiment directly locks the rotational movement of the main shaft relative to the base through the padlock member, which is more reliable and safer.

[0034] The padlock 20 is provided with a first engaging structure, and the spindle 30 is provided with a second engaging structure. The first and second engaging structures comprise a pair of protrusions and locking grooves that engage with each other. When the padlock 20 slides relative to the spindle 30, the first and second engaging structures can switch from a disengaged state to an engaged state, thereby locking the rotational movement of the spindle 30. In other embodiments, the padlock 20 and spindle 30 can be separated or engaged, for example, using a magnetic structure, or by using a clamping structure.

[0035] In this embodiment, the padlock 20 is provided with a protrusion 21 as a first engaging structure, and the spindle 30 is provided with a locking groove 31 as a second engaging structure. The base 10 is provided with a slide groove 11, into which the padlock 20 is slidably mounted. When the padlock 20 slides upward, the protrusion 21 of the padlock 20 engages with the locking groove 31 of the spindle 30, thereby restricting the rotational movement of the spindle 30. This provides a simple structure and reliable locking. In this embodiment, the protrusion 21 is a bump. In other embodiments, the protrusion 21 may alternatively be a column, a bump, or the like.

[0036] The padlock member 20 is provided with a padlock portion 23. When the padlock member 20 slides upward, the rotational movement of the main shaft 30 is restricted. At this time, the padlock portion 23 is exposed outside the base 10 and can be padlocked. That is, the padlock member 20 is locked to a position where the rotational movement of the main shaft 30 is restricted by the padlock portion 23 using a padlock, thereby preventing misoperation and providing higher safety.

[0037] Reference Figure 4-5In this embodiment, the locking groove 31 extends along the axis of the main shaft 30, and the padlock 20 can slide relative to the main shaft 30 in the axial direction, so that the protrusion 21 of the padlock 20 can engage or disengage with the locking groove 31 of the main shaft 30. In other embodiments, the padlock 20 can also slide relative to the main shaft 30 in a direction perpendicular to the axis, so that the protrusion 21 of the padlock 20 can engage or disengage with the locking groove 31 of the main shaft 30. However, this method increases the size of the base 10 in the direction perpendicular to the axis of the main shaft 30 and is not conducive to the effective placement of the padlock. In this embodiment, the padlock 20 can slide relative to the main shaft 30 in the axial direction, resulting in a smaller product volume and more convenient placement of the padlock.

[0038] The locking groove 31 is provided on the enlarged diameter portion 32 of the main shaft 30. An escape portion 33 is formed on the main shaft 30 adjacent to the enlarged diameter portion 32. 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 escape portion 33 and does not contact the main shaft 30. The escape portion 33 forms an escape structure between the main shaft 30 and the protrusion 21 of the padlock 20.

[0039] A stop block 311 is provided at one end of the lock slot 31 for limiting the sliding range of the padlock 20 to prevent the padlock 20 from completely sliding out of the base 10 and affecting the normal use of the padlock 20 .

[0040] A first limiting structure 12 is provided on the sidewall of the slideway 11, and a second limiting structure 22 is provided on the padlock 20. The cooperation of the first limiting structure 12 and the second limiting structure 22 limits the sliding movement of the padlock 20 when the padlock 20 is separated from the main shaft 30. Specifically, when the padlock 20 slides downward and the protrusion 21 separates from the lock groove 31, the first limiting structure 12 and the second limiting structure 22 cooperate to limit the position, allowing the protrusion 21 and the lock groove 31 to remain stably separated, preventing the padlock 20 from unexpectedly sliding out 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 with each other to limit the position. In other embodiments, the first limiting structure 12 and the second limiting structure 22 can also be a matching limiting structure including an elastic top ball, etc.

[0041] In this specific embodiment, a groove 12 is provided on the sidewall of the chute 11 as a first limiting structure 12, and a padlock protrusion 22 is provided on the padlock member 20 as a second limiting structure 22. The padlock protrusion 22 can engage with the groove 12 to limit the position. A slot 24 is provided at the lower portion of the padlock member 20, dividing the lower portion of the padlock member 20 into two legs. The padlock protrusion 22 is provided on one of the legs. The padlock member 20 is more likely to elastically deform at this leg, making it easier for the padlock protrusion 22 to engage with the groove 12, making operation more convenient.

[0042] In this embodiment, the padlock 20 is provided with a long groove 25 with a semicircular cross section at the root of the support leg where the padlock protrusion 22 is located, so as to further increase the elasticity of the support leg and make the operation more convenient.

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

Claims

1. A padlock mechanism for an isolating switch, comprising a base, a padlock member, and a main shaft, wherein the main shaft is mounted on the base and is used to transmit rotational motion to actuate a contact system of the isolating switch to open or close the switch, characterized in that: The padlock is slidably mounted on the base and can slide relative to the spindle, so that the padlock and the spindle can be switched from a separated state to an engaged state, thereby switching the spindle from being rotatable relative to the base to having its rotational motion restricted.

2. The isolating switch padlock mechanism according to claim 1, characterized in that: The padlock is provided with a first clamping structure, and the main shaft is provided with a second clamping structure. The first clamping structure and the second clamping structure are a set of protrusions and locking grooves that can be clamped together. The padlock can slide relative to the main shaft, so that the first clamping structure and the second clamping structure can be switched from a separated state to a clamped state, thereby enabling the padlock and the main shaft to be switched from a separated state to a clamped state.

3. The isolating switch padlock mechanism according to claim 2, characterized in that: The padlock is provided with a convex portion as a first clamping structure, and the main shaft is provided with a locking groove as a second clamping structure; the locking groove extends along the axis of the main shaft, and the padlock can slide relative to the main shaft along the axis.

4. The isolating switch padlock mechanism according to claim 3, characterized in that: The main shaft includes a diameter-enlarged portion and an escape portion. The locking groove is provided on the diameter-enlarged portion of the main shaft. The escape portion is formed on the main shaft adjacent to the diameter-enlarged portion.

5. The isolating switch padlock mechanism according to claim 3, characterized in that: One end of the lock slot is provided with a stop block for limiting the sliding range of the padlock.

6. The isolating switch padlock mechanism according to claim 1, characterized in that: The padlock member is provided with a padlock portion, and when the padlock member slides upward, the padlock portion can be exposed from the base so as to be padlocked.

7. The isolating switch padlock mechanism according to claim 1, characterized in that: The base is provided with a slide groove, and the padlock component is slidably arranged in the slide groove. The side wall of the slide groove is provided with a first limiting structure, and the padlock component is provided with a second limiting structure. By cooperating with the first limiting structure and the second limiting structure, the sliding of the padlock component is limited when the padlock component and the main shaft are in a separated state.

8. The isolating switch padlock mechanism according to claim 7, characterized in that: A groove is provided on the side wall of the slide as a first limiting structure, and a padlock protrusion is provided on the padlock member as a second limiting structure, and the padlock protrusion can be engaged with the groove for limiting position; a slot is provided on the lower part of the padlock member, so that the lower part of the padlock member is divided into two legs, and the padlock protrusion is provided on one of the legs.

9. The isolating switch padlock mechanism according to claim 8, characterized in that: The padlock component is provided with a long groove with a semicircular cross section at the root of the supporting foot where the padlock protrusion is located.

10. An isolating switch operating mechanism, characterized in that: The invention comprises the isolating switch padlock mechanism according to any one of claims 1 to 9.

11. The isolating switch 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, 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 plugged into and matched with the cylindrical structure through the shaft hole to achieve synchronous rotation; the linkage shaft transmission connects the actuating mechanism of the contact 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 slide groove, and the cylindrical structure of the linkage shaft is passed through the slide groove; the energy storage element is sleeved on the connecting rod, and its two ends respectively abut against the support shaft and the cylindrical structure of the linkage shaft.

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