CN219350062U

CN219350062U - Safety handle mechanism of rotary switch

Info

Publication number: CN219350062U
Application number: CN202320050992.3U
Authority: CN
Inventors: 谢奉孟; 姜华; 余明锋
Original assignee: Taizhou Baoluda Electrical Technology Co ltd
Current assignee: Taizhou Baoluda Electrical Technology Co ltd
Priority date: 2023-01-08
Filing date: 2023-01-08
Publication date: 2023-07-14
Anticipated expiration: 2033-01-08

Abstract

The utility model discloses a safety handle mechanism of a rotary switch, which comprises a mechanism seat, a driving shaft and a handle, wherein the handle is fixed at the upper end of the driving shaft; the handle is internally provided with a locking component, the locking component comprises a driving block, a locking block and an elastic component, a hanging lock hole is formed in the handle at a position corresponding to the driving block, the upper end of the locking block is connected with the driving block through an inclined plane in a matched manner, a clamping position is formed on the upper surface of the mechanism seat, when the handle is at a separating gate angle position, the clamping position is positioned below the locking block, the locking block is pushed to move downwards through the inclined plane when the driving block is pushed to move transversely, locking fit is formed with the clamping position, and at the moment, a padlock is arranged in the padlock hole to limit the driving block to move so that the locking block and the clamping position are kept locked. According to the utility model, the handle structure is optimally designed, and the handle can be locked at the opening angle position during installation and use so as to prevent the situation of being switched on by mistake, thereby ensuring the use safety and having good practicability.

Description

Safety handle mechanism of rotary switch

Technical Field

The utility model relates to the field of rotary switch structure design, in particular to a safety handle mechanism of a rotary switch.

Background

The rotary switch is usually used as an isolating switch and used for controlling the on-off of a circuit, and the rotary switch is controlled to be switched between a closing state and a separating state by rotating an operating handle during operation. A combination rotary switch as disclosed in patent document CN202384232U, a rotary switch as disclosed in patent document CN217507177U, and an operating mechanism of a rotary switch as disclosed in patent document CN 217405308U. The problem that the locking structure of the handle is easy to cause in actual use is that when the rotary switch is in the opening state, even after the rotary switch is opened when a worker rotates the handle to the opening angle position, when a circuit is overhauled, other people can recover to close the rotary switch when the handle is rotated under the unknowing condition, and then electric shock accidents are easy to cause.

Disclosure of Invention

Aiming at the defects pointed out in the background art, the utility model aims to provide a safety handle mechanism of a rotary switch, which is reasonable in structure, and can lock the handle when the rotary switch is in a switching-off state through optimizing the structure so as to prevent the situation of being switched on by mistake.

The technical scheme for realizing the aim of the utility model is as follows:

the utility model provides a safety handle mechanism of a rotary switch, which comprises a mechanism seat, a driving shaft and a handle, wherein the driving shaft penetrates through the mechanism seat and can rotate around the axis of the driving shaft, the handle is fixed at the upper end of the driving shaft, and the handle is positioned at a closing angle position when the rotary switch is closed and at a separating angle position when the rotary switch is separated; the handle is internally provided with a locking component, the locking component comprises a driving block capable of transversely moving, a locking block capable of vertically moving and an elastic component for providing upward elastic force for the locking block, a hanging lock hole is formed in the position, corresponding to the driving block, of the handle, the upper end of the locking block is connected with the driving block through inclined plane fit, a clamping position is formed in the upper surface of the mechanism seat, when the handle is at a separating angle position, the clamping position is located below the locking block, and when the driving block is pushed to transversely move, the locking block is pushed to move downwards through the inclined plane and form locking fit with the clamping position, and at the moment, a padlock is installed in the padlock hole to limit the movement of the driving block so that the locking block and the clamping position are kept locked.

In a further technical scheme of the utility model, a brake block is arranged on the upper surface of the mechanism seat, and the brake block is positioned below the locking block when the handle is at a closing angle position so as to prevent the locking block from moving downwards.

In a further technical scheme of the utility model, a sliding groove is arranged on the surface of the handle, a pushing handle is movably arranged in the sliding groove, and the pushing handle is connected with the driving block.

In a further technical scheme of the utility model, the elastic component is a spiral pressure spring, the upper end of the elastic component is connected with the locking piece, and the lower end of the elastic component is connected with a limiting block on the handle.

In a further technical scheme of the utility model, the locking block is provided with a slotted hole, the spiral pressure spring is arranged in the slotted hole, and a positioning column sleeved with the spiral pressure spring is arranged in the slotted hole.

In a further technical scheme of the utility model, a sleeve hole is formed in the handle, and the upper end of the driving shaft is inserted into the sleeve hole and locked by a fixing screw.

In a further technical scheme of the utility model, two spaced baffle tables are arranged on the upper surface of the mechanism seat, a stop block is arranged at the bottom of the handle, the stop block rotates between the two baffle tables when the handle rotates, the stop block stops at one baffle table when the handle rotates to a switching-off angle position, and the stop block stops at the other baffle table when the handle rotates to a switching-on angle position.

In a further technical scheme of the utility model, the clamping position is a groove part arranged at the upper part of the mechanism seat.

The utility model has the positive effects that:

(1) The handle mechanism is provided with the locking component, and the handle can be locked through the locking component when being positioned at the opening angle position, so that the handle can not rotate in the opening state, and the rotary switch is kept in the opening state.

(2) The handle mechanism is characterized in that the handle is provided with the locking block, the locking block is arranged on the handle seat, and the locking block is arranged below the handle when the handle is in a closing angle position so as to prevent the locking block from moving downwards.

Drawings

These and/or other aspects, features and advantages of the present disclosure will become more apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, wherein:

FIG. 1 is a schematic perspective view of a handle mechanism according to the present utility model;

FIG. 2 is a top view of the handle mechanism of FIG. 1;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a schematic view of a mechanism seat according to the present utility model;

FIG. 5 is a schematic view of the handle of the present utility model;

fig. 6 is an exploded view of the handle mechanism of the present utility model.

The reference numerals shown in the figures are: 1-a mechanism seat; 11-clamping; 12-a brake pad; 13-a baffle; 2-driving shaft; 3-a handle; 31-a hanging lock hole; 32-sliding grooves; 33-stop; 34-trepanning; 35-a stop block; 4-a driving block; 5-locking blocks; 51-slots; 52-positioning columns; 6-elastic members; 7-inclined plane; 8-push handle.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model.

As shown in fig. 1 to 6, the safety handle mechanism of the rotary switch in this embodiment includes a mechanism seat 1, a driving shaft 2 and a handle 3, the driving shaft 2 penetrates through the mechanism seat 1 and can rotate around its own axis, the handle 3 is fixed at the upper end of the driving shaft 2, the handle 3 is at a closing angle position when the rotary switch is closed and at a breaking angle position when the rotary switch is broken, an included angle between the closing angle position and the breaking angle position is usually 90 degrees, and the prize cover handle mechanism is applied to the switch and drives the driving shaft 2 to rotate through the rotating handle 3 when operated, so as to control the state of the rotary switch to switch; in this embodiment, the structure of the handle mechanism is further optimized, a locking assembly is disposed in the handle 3, the locking assembly includes a driving block 4 capable of moving transversely, a locking block 5 capable of moving up and down, and an elastic component 6 for providing an upward elastic force for the locking block 5, a padlock hole 31 is disposed on the handle 3 at a position corresponding to the driving block 4, the padlock hole 31 is used for installing a padlock, the upper end of the locking block 5 is connected with the driving block 4 in a matching manner through an inclined plane 7, a clamping position 11 is disposed on the upper surface of the mechanism seat 1, when the handle 3 is in a separating angle position, the clamping position 11 is located below the locking block 5, and when the driving block 4 is pushed to move transversely, the locking block 5 is pushed to move downwards and form a locking fit with the clamping position 11, and a padlock (not shown in the drawing) is mounted in the padlock hole 31 to limit the driving block 4 to move so that the locking block 5 and the clamping position 11 are kept locked, thereby locking the handle 3 in a current position, namely, the separating angle position.

Through setting up locking subassembly in this embodiment, can lock through locking subassembly when handle 3 is in the switching-off angular position to make handle 3 can not rotate under this state, make rotary switch keep in the switching-off state, the benefit of doing so is that the staff is when overhauling the circuit with handle 3 locking, thereby avoids other people to close a floodgate the switch by mistake and causes the incident.

The working principle of the handle mechanism in the embodiment is as follows: when the rotary switch is in a brake-separating state (the handle 3 is correspondingly in a brake-separating angle position), the driving block 4 is controlled to move transversely, the locking block 5 is pushed to move downwards by the inclined surface 7 against the elastic action of the elastic component 6, the handle 3 is locked by the clamping fit formed by the lower end of the locking block 5 and the clamping position 11 on the mechanism seat 1, at the moment, a padlock is hung in the padlock hole 31 and locked to limit the reset movement of the driving block 4, so that the handle 3 is kept to be locked, and only after a worker opens and removes the padlock, the locking block 5 moves upwards to reset under the action of the elastic component 6, and the driving block 7 is pushed to move to reset under the action of the inclined surface 7, so that the handle 3 can be operated to rotate at the moment, and the rotary switch is controlled.

The clamping position 11 in the embodiment is a groove part arranged at the upper part of the mechanism seat 1, two bosses are arranged on the upper surface of the mechanism seat 1, and the groove part is formed between the two bosses; alternatively, the locking portion 11 may be a protrusion provided on the mechanism base 1, and the bottom end of the corresponding locking piece 5 is provided with a slot adapted to form a fit with the protrusion, so that when the handle 3 is at the opening angle position, the locking piece 5 is controlled to move downward and then form a fit with the protrusion on the mechanism base 1 through the slot at the bottom end of the locking piece to achieve locking.

As shown in fig. 3, in this embodiment, the driving block 4 and the locking block 5 are both provided with the inclined planes 7 to ensure stable connection therebetween; as an alternative first embodiment: in actual operation, the inclined surface 7 can be arranged at one end of the driving block 4, which is close to the locking block 5, and the upper end of the locking block 5 is in interference fit with the inclined surface 7; as an alternative second embodiment: the upper end of the locking block 5 is provided with the inclined plane 7, and the corresponding part of the driving block 4 is in interference fit with the inclined plane 7.

In a further preferred embodiment, a brake block 12 is disposed on the upper surface of the mechanism seat 1 in this embodiment, and the brake block 12 is located below the lock block 5 when the handle 3 is in the closing angle position, so as to block the lock block 5 from moving downward, so that the lock block 5 cannot be driven to move downward when the rotary switch is in the closing state, and the handle 3 cannot be locked, so that the rotary switch can perform the opening operation through the handle 3 at any time in the closing state.

Referring to fig. 3, for convenience in operation, in this embodiment, a chute 32 is provided on the upper surface of the handle 3, a push handle 8 is movably provided in the chute 32, the push handle 8 is limited and guided by the chute 32, and the push handle 8 is prevented from completely protruding from the surface of the handle 3, the push handle 8 is connected with the driving block 4 through a connecting piece (such as a screw), and when the handle 3 is locked, a lateral thrust is applied to the push handle 8 by a finger to control the driving block 4 to move in a corresponding direction, so as to control the locking block 5 to move downward; the upper surface of the push handle 8 may be provided with a concave-convex structure to increase the friction between the finger and the push handle 8.

The elastic component 6 in this embodiment is a spiral compression spring, the upper end of which is connected with the locking piece 5, and the lower end of which is connected with the limiting block 33 on the handle 3, so that an upward elastic force is provided for the locking piece 5 by the spiral compression spring, and the locking piece 5 always keeps a trend of upward movement.

The locking piece 5 in this embodiment is provided with a slot 51, the spiral compression spring is installed in the slot 51, a positioning column 52 sleeved with the spiral compression spring is arranged in the slot 51, the limiting block 33 extends into the slot 51, and the positioning column 52 can be used for positioning the spiral compression spring to prevent the spiral compression spring from falling off and failing.

In order to effectively connect the handle 3 with the driving shaft 2, as shown in fig. 4 to 6, in this embodiment, a sleeve hole 34 is disposed on the handle 3, the upper end of the driving shaft 2 is inserted into the sleeve hole 34 and locked by a fixing screw, the sleeve hole 34 may adopt a non-circular hole (such as a square hole, a semicircular hole, a triangular hole, etc.), and the upper end of the driving shaft 2 is correspondingly a non-circular cylinder structure (such as a square cylinder structure, a semicircular cylinder structure, a triangular cylinder structure, etc.), so that after the upper end of the driving shaft 2 is plugged into the sleeve hole 34, the two parts can be prevented from rotating relatively, and the driving shaft 2 can be effectively driven to rotate when the handle 3 rotates.

Furthermore, in order to limit the rotation angle of the handle 3, in this embodiment, two spaced blocking platforms 13 are provided on the upper surface of the mechanism seat 1, a stop block 35 is provided at the bottom of the handle 3, the stop block 35 rotates between the two blocking platforms 13 when the handle 3 rotates, and the stop block 35 stops at one blocking platform 13 when the handle 3 rotates to the opening angle position, and the stop block 35 stops at the other blocking platform 13 when the handle 3 rotates to the closing angle position, that is, the stop block is limited by the interference fit of the blocking platform 13 and the stop block 35 when the handle 3 rotates.

It is to be understood that the above examples of the present utility model are provided by way of illustration only and not by way of limitation of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While those obvious variations or modifications which come within the spirit of the utility model remain within the scope of the utility model.

Claims

1. The safety handle mechanism of the rotary switch comprises a mechanism seat (1), a driving shaft (2) and a handle (3), wherein the driving shaft (2) penetrates through the mechanism seat (1) and can rotate around the axis of the driving shaft, the handle (3) is fixed at the upper end of the driving shaft (2), and the handle (3) is positioned at a closing angle position when the rotary switch is closed and at a separating angle position when the rotary switch is separated; the method is characterized in that: be equipped with locking subassembly in handle (3), but locking subassembly includes lateral shifting's driving piece (4), locking piece (5) that reciprocate and is used for providing elastic component (6) upwards for locking piece (5), be equipped with on handle (3) in the position corresponding with driving piece (4) and hang lockhole (31), be connected through inclined plane (7) cooperation between locking piece (5) upper end and driving piece (4) be equipped with screens (11) on mechanism seat (1) upper surface, handle (3) are in the time of separating brake angular position, screens (11) are in locking piece (5) below, promote when driving piece (4) lateral shifting pass through inclined plane (7) promote locking piece (5) move downwards and with screens (11) form locking cooperation, to padlock in order to restrict in padlock hole (31) are moved and are kept the lock with screens (11) this moment.

2. Safety handle mechanism of a rotary switch according to claim 1, characterized in that a brake block (12) is provided on the upper surface of the mechanism seat (1), the brake block (12) being under the lock block (5) in the closing angle position of the handle (3) to block the lock block (5) from moving downwards.

3. Safety handle mechanism of a rotary switch according to claim 1, characterized in that the surface of the handle (3) is provided with a chute (32), a push handle (8) is movably arranged in the chute (32), and the push handle (8) is connected with the driving block (4).

4. The safety handle mechanism of the rotary switch according to claim 1, wherein the elastic component (6) is a spiral compression spring, the upper end is connected with the locking piece (5), and the lower end is connected with a limiting block (33) on the handle (3).

5. The safety handle mechanism of the rotary switch according to claim 4, wherein the locking piece (5) is provided with a slot hole (51), the spiral compression spring is arranged in the slot hole (51), and a positioning column (52) sleeved with the spiral compression spring is arranged in the slot hole (51).

6. Safety handle mechanism for a rotary switch according to claim 1, characterized in that the handle (3) is provided with a socket (34), the upper end of the drive shaft (2) being inserted into the socket (34) and locked with a set screw.

7. The safety handle mechanism of a rotary switch according to claim 1, characterized in that the upper surface of the mechanism seat (1) is provided with two spaced baffle tables (13), the bottom of the handle (3) is provided with a stop block (35), the stop block (35) rotates between the two baffle tables (13) when the handle (3) rotates, and the stop block (35) stops at one baffle table (13) when the handle (3) rotates to a switching-off angle position, and the stop block (35) stops at the other baffle table (13) when the handle (3) rotates to a switching-on angle position.

8. The safety handle mechanism of a rotary switch according to claim 1, wherein the detent (11) is a groove provided in an upper portion of the mechanism base (1).