CN217983183U - Multiple-insurance isolating switch box - Google Patents

Abstract

The utility model provides a multi-safety isolating switch box, which belongs to the technical field of isolating switch boxes and comprises a box body, a box cover, an operating handle and an isolating switch, wherein the operating handle is arranged on the outer wall of the box body and a transmission rod is arranged between the operating handle and the isolating switch; the utility model is provided with a breaking safety mechanism, in the process of opening the brake, the rotary operating handle drives the safety interlocking mechanism to rotationally touch the breaking safety mechanism, so that a superior control loop is firstly disconnected, the brake is opened after the power is cut off, one more safety of the electric interlock is added, and the power utilization safety is improved; in the switching-on process, the rotary operating handle drives the safety interlocking mechanism to rotationally touch the breaking safety mechanism, the upper control loop still can keep a channel, normal use is not influenced, the structure is reasonable, and the safety is high.

Description

Multiple insurance's isolator case

Technical Field

The utility model relates to an isolator box technical field, concretely relates to multiple insurance's isolator box.

Background

The isolating switch box plays a role in power utilization isolation, is a switch box for overhauling, emergency disconnection and on-site safe power failure of industrial field electric equipment, enables the switch contact separation and combination state to be clear at a glance, and has a field hang tag locking function, thereby protecting the safety of machinery equipment and people.

The interlocking that current isolator case mostly adopted electromagnetic lock and mechanical lock prevents the maloperation, and under the electrified circumstances of isolator promptly, the electromagnetic lock is electrified to pass through mechanical interlocking for the unable divide-shut brake operation of manual work, but the phenomenon that takes place the electromagnet coil to burn out when the long-time circular telegram of electromagnetic lock leads to preventing the maloperation functional failure, can't avoid the on-load operation completely, thereby appears drawing the arc because of the on-load operation and causes conflagration or injure people's safety risk.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the shortcoming and not enough that prior art exists, and provide the isolator case of a multiple insurance.

The utility model adopts the following technical scheme: the utility model provides a isolator case of multiple insurance, includes box, case lid, operating handle and sets up isolator in the box, operating handle sets up the box outer wall and with be equipped with the transfer line between the isolator, be equipped with on the transfer line with the safe interlocking device of operating handle linkage just is located the box, be equipped with disconnected insurance mechanism in the box, disconnected insurance mechanism is connected with the higher level control circuit electricity of outside and is formed the route, disconnected insurance mechanism is used for locating the separating brake in-process and realizes higher level control circuit disconnection in advance under the rotatory touching of safe interlocking device.

The breaking safety mechanism comprises a circuit connecting support, a first elastic sheet is arranged on one side, close to the safety interlocking mechanism, of the circuit connecting support, and the first elastic sheet is provided with a first position enabling a superior control loop to be electrically disconnected and a second position enabling the superior control loop to be electrically connected.

One end of the first elastic sheet is hinged with the circuit connecting support, and a first reset piece is arranged between the other end of the first elastic sheet and the circuit connecting support and used for enabling the first elastic sheet to be located at the second position when the first elastic sheet is not stressed.

The safety interlocking mechanism is provided with a rotary contact, a second elastic sheet is hinged to the first elastic sheet, a second reset piece is arranged between the first elastic sheet and the second elastic sheet, and the second elastic sheet has a closing rotation direction which does not block rotation of the rotary contact and an opening rotation direction which blocks rotation of the rotary contact.

And a pulley is arranged on the second elastic sheet and is positioned on a rotating path of the rotating contact.

The rotating contact rotates a certain angle towards the closing rotating direction and can be touched with the pulley, and the first elastic sheet keeps a second position.

The rotating contact rotates a certain angle towards the opening rotating direction, and can be touched with the pulley, so that the first elastic sheet is located at the first position.

The breaking safety mechanism further comprises a fixed support arranged on the inner wall of the box body, the fixed support is connected with the inner wall of the box body through bolts, and the circuit connecting support is arranged on the fixed support.

The operating handle is provided with a rotary locking mechanism for switching-on operation after three keys are simultaneously inserted.

The box cover is provided with a visible window.

The utility model has the advantages as follows: the utility model discloses be equipped with disconnected insurance mechanism, disconnected insurance mechanism is connected with the higher level control circuit electricity of outside and is formed the route, in the separating brake process, rotatory operating handle drives safe interlocking device and disconnected insurance mechanism and carries out rotatory touching, break off higher level control circuit earlier, realize breaking off the brake after the elder generation outage earlier, because the direction that the direction of rotation that uses operating handle to open the isolator case and the position of closing the floodgate rotates to the separating brake position is unanimous, consequently must break off higher level control circuit earlier when opening the isolator case, add the many insurances of electric interlocking, promote the power consumption safety; in the switching-on process, the rotary operating handle drives the safety interlocking mechanism to rotationally touch the breaking safety mechanism, the upper control loop still can keep a channel, normal use is not influenced, the structure is reasonable, and the safety is high.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings obtained from these drawings still belong to the scope of the present invention without inventive laboriousness.

FIG. 1 is a schematic view of the present invention;

fig. 2 is a schematic diagram of a safety interlocking mechanism and a breaking safety mechanism in the present invention;

fig. 3 is a schematic diagram of the closing action of the safety interlocking mechanism and the breaking safety mechanism of the present invention;

FIG. 4 is a schematic diagram of the tripping action of the safety interlock mechanism and the breaking safety mechanism of the present invention;

in the figure, 1-box body, 2-box cover, 3-operating handle, 4-box body, 5-box body, 6-safety interlocking mechanism, 61-rotating contact, 7-breaking safety mechanism, 71-circuit connecting bracket, 72-first elastic sheet, 73-first resetting piece, 74-second elastic sheet, 75-pulley and 76-fixed bracket.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings.

It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it is understood that "first" and "second" are only used for convenience of expression and should not be construed as limitations to the embodiments of the present invention, and the following embodiments do not describe the embodiments one by one.

The terms of direction and position in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., refer to the direction and position of the attached drawings. Accordingly, the use of directional and positional terms is intended to illustrate and understand the present invention and is not intended to limit the scope of the invention.

As shown in fig. 1 to 4, for the present invention provides an embodiment:

the multi-insurance isolating switch box comprises a box body 1, a box cover 2, an operating handle 3 and an isolating switch 4 arranged in the box body 1, wherein the operating handle 3 is arranged on the outer wall of the box body 1, a transmission rod 5 is arranged between the operating handle 3 and the isolating switch 4, a safety interlocking mechanism 6 which is linked with the operating handle 3 is arranged on the transmission rod 5 and is positioned in the box body 1, the multi-insurance isolating switch box is characterized in that a breaking safety mechanism 7 is arranged in the box body 1, the breaking safety mechanism 7 is electrically connected with an external superior control loop to form a passage, and the breaking safety mechanism 7 is used for realizing the pre-disconnection of the superior control loop under the rotary touch of the safety interlocking mechanism 6 in the switching process.

In the process of opening the brake, the rotary operating handle 3 drives the safety interlocking mechanism 6 to rotationally touch the breaking safety mechanism 7, a superior control loop is firstly disconnected, the disconnection after the power failure is realized, and the rotating direction of opening the isolating switch box by using the operating handle 3 is consistent with the direction of rotating the switch-on position to the switch-off position, so that the superior control loop is firstly disconnected when the isolating switch box is opened, and the misoperation during the manual opening and closing of the load is effectively prevented; in the switching-on process, the rotary operating handle 3 drives the safety interlocking mechanism 6 to rotationally touch the breaking safety mechanism 7, the superior control loop still can keep a channel, normal use is not influenced, the structure is reasonable, and the safety is high.

In this embodiment, the breaking safety mechanism 7 includes a circuit connecting support 71, a first elastic sheet 72 is disposed on one side of the circuit connecting support 71 close to the safety interlocking mechanism 6, and the first elastic sheet 72 has a first position for electrically disconnecting the superior control circuit and a second position for electrically connecting the superior control circuit; the circuit connecting bracket 71 is electrically connected with an external superior control loop, and the first position is that the first elastic sheet 72 abuts against the circuit connecting bracket 71, as shown in e in fig. 4; the second position is that the first elastic sheet 72 is separated from the circuit connecting bracket 71, for example, the first elastic sheets 72 of a, b and c in fig. 3 are all in the second position.

One end of the first elastic sheet 72 is hinged to the circuit connecting bracket 71, and a first reset piece 73 is arranged between the other end of the first elastic sheet and the circuit connecting bracket 71 and used for enabling the first elastic sheet 72 to be in a second position when the first elastic sheet is not stressed; the first reset element 73 is a compression spring, one end of which abuts against the circuit connecting bracket 71, and the other end of which abuts against the first elastic sheet 72, and the first elastic sheet 72 is located at the second position under the support of the spring, if the first elastic sheet 72 is forced to rotate around the hinge point.

Safety interlocking device 6 is equipped with rotating contact 61, articulated on the first shell fragment 72 have second shell fragment 74 and be equipped with the second between the two and reset the piece, second shell fragment 74 has and does not block the rotation rotating contact 61 rotatory combined floodgate direction of rotation and block the rotatory separating brake direction of rotation of rotating contact 61, be equipped with pulley 75 on the second shell fragment 74, pulley 75 is located on rotating contact 61's the rotatory route, can take place the touching with pulley 75 when rotating contact 61 is rotatory, and adopt the friction between the reducible touching point of pulley 75, protection device, increase of service life.

In this embodiment, as shown in fig. 3, the closing rotation direction of the rotating contact 61 is counterclockwise rotation, at this time, the rotating contact 61 contacts the pulley 75, the second elastic sheet 74 rotates downward to let the rotating contact 61 pass, and the first elastic sheet 72 keeps the second position, so as to keep the upper control loop path; as shown in fig. 4, the opening direction of the rotary contact 61 is clockwise rotation, at this time, the rotary contact 61 touches the pulley 75, the second elastic piece 74 moves the first elastic piece 72 from the second position to the first position, so that the upper control circuit is disconnected, and then the first elastic piece 72 is reset under the action of the first reset piece 73, so as to realize first power off and then opening.

The rotating contact 61 rotates a certain angle towards the closing rotation direction and can touch the pulley 75, and the first elastic sheet 72 keeps a second position; the rotating contact 61 rotates a certain angle towards the opening rotation direction to touch the pulley 75 and make the first elastic sheet 72 at the first position. The certain angle is that the rotary contact 61 can touch the pulley 75 when rotating by 40-45 degrees, preferably 45 degrees, and the interlocking superior control loop is disconnected, so that the pre-brake-separating function of firstly powering off and then separating brake is realized.

The breaking safety mechanism 7 further comprises a fixing support 76 arranged on the inner wall of the box body 1, the fixing support 76 is in bolt connection with the inner wall of the box body 1, the circuit connecting support 71 is arranged on the fixing support 76, a pulley 75 on the circuit connecting support 71 and the rotary contact 61 are located on the same plane through the fixing support 76, and the pulley 75 can be effectively touched when the rotary contact 61 rotates.

Operating handle 3 is equipped with rotary locking mechanism and is used for just can closing a floodgate operation after inserting three keys simultaneously, under the outage condition, case lid 2 is opened the back, this operating handle 3 can't rotate, only close case lid 2 after, it can just close a floodgate to insert three keys simultaneously again, this operating handle 3 structure is prior art, do not do the detail, the further promotion power consumption security of structure more than adopting, combine electromagnetic lock and mechanical interlocking simultaneously, in addition electrical interlocking, multiple insurance, the safety of equipment and person has been ensured.

The case cover 2 is provided with a visible window, and the internal condition of the case body can be observed in the power-on state.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.

Claims (10)

1. The multi-insurance isolating switch box comprises a box body (1), a box cover (2), an operating handle (3) and an isolating switch (4) arranged in the box body (1), wherein the operating handle (3) is arranged on the outer wall of the box body (1), a transmission rod (5) is arranged between the operating handle (3) and the isolating switch (4), a safety interlocking mechanism (6) linked with the operating handle (3) is arranged on the transmission rod (5) and is positioned in the box body (1), the multi-insurance isolating switch box is characterized in that a breaking safety mechanism (7) is arranged in the box body (1), the breaking safety mechanism (7) is electrically connected with an external superior control loop to form a passage, and the breaking safety mechanism (7) is used for realizing the pre-disconnection of the superior control loop under the rotary touch of the safety interlocking mechanism (6) in the breaking process.

2. A multiple-safety isolating switch box according to claim 1, characterized in that the breaking safety mechanism (7) comprises a circuit connecting bracket (71), a first spring plate (72) is arranged on one side of the circuit connecting bracket (71) close to the safety interlocking mechanism (6), and the first spring plate (72) has a first position for electrically breaking the superior control circuit and a second position for electrically breaking the superior control circuit.

3. The multiple-safety isolating switch box according to claim 2, wherein one end of the first elastic sheet (72) is hinged to the circuit connecting bracket (71), and a first reset member (73) is disposed between the other end of the first elastic sheet and the circuit connecting bracket (71) for keeping the first elastic sheet (72) in the second position when the first elastic sheet is not stressed.

4. The multiple-safety disconnecting switch box according to claim 2, wherein the safety interlocking mechanism (6) is provided with a rotating contact (61), the first elastic sheet (72) is hinged with a second elastic sheet (74) and a second resetting piece is arranged between the first elastic sheet and the second elastic sheet, and the second elastic sheet (74) has a closing rotating direction which does not block the rotating contact (61) from rotating and an opening rotating direction which blocks the rotating contact (61) from rotating.

5. A multiple-safety disconnector box according to claim 4, characterized in that the second spring plate (74) is provided with a pulley (75), the pulley (75) being located in the rotation path of the rotary contact (61).

6. The multiple-safety disconnecting switch box according to claim 5, wherein the rotating contact (61) is rotated to a certain angle in the closing rotating direction to touch the pulley (75) and the first resilient piece (72) keeps the second position.

7. A multiple-safety disconnector box according to claim 5, characterized in that the rotary contact (61) is brought into contact with the pulley (75) and the first spring (72) is brought into the first position by turning it at an angle in the opening rotation direction.

8. A multiple safety isolation switch box according to claim 2, characterized in that the safety disconnecting mechanism (7) further comprises a fixing bracket (76) arranged on the inner wall of the box body, the fixing bracket (76) is connected with the inner wall of the box body (1) through bolts, and the circuit connecting bracket (71) is arranged on the fixing bracket (76).

9. A multiple-safety disconnector box according to claim 1, characterized in that the operating handle (3) is provided with a rotary locking mechanism for enabling a closing operation only after three keys have been inserted simultaneously.

10. A multiple-safety disconnector box according to claim 1, characterized in that a visual window is provided in the box cover (2).

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