CN221574685U - Floor type switch cabinet grounding handcart - Google Patents

Abstract

The utility model discloses a ground type switch cabinet grounding handcart, which belongs to the technical field of power transmission and distribution and comprises a frame, a fixed breaker, a hand-operated propelling mechanism, a grounding contact, a grounding copper bar, a pole, an upper contact arm and an upper contact, wherein the fixed breaker is arranged on the frame, the hand-operated propelling mechanism is arranged on one side wall of the frame, the grounding contact is arranged on the other side wall of the frame, the grounding contact is close to the bottom of the frame, one end of the grounding contact is connected with one end of the grounding copper bar, the grounding copper bar is arranged to be parallel to the other side wall of the frame, the other end of the grounding copper bar is connected with one end of a pole, the pole is arranged on the fixed breaker, the upper contact is arranged at the end part of the upper contact arm and extends out of the other side wall of the frame, the upper contact and the grounding contact are arranged on one side of the frame, and the connection between the cable bus and the grounding system of the switch cabinet can be completed by simultaneously entering the switch cabinet under the pushing of the hand-operated propelling mechanism.

Description

Floor type switch cabinet grounding handcart

Technical Field

The utility model relates to the technical field of power transmission and distribution, in particular to a grounding handcart of a floor type switch cabinet.

Background

In a high-voltage power supply system, an electric control switch cabinet is divided into an oil switch, an SF6 switch, a vacuum switch and the like according to different arc extinguishing mediums, the vacuum switch is widely applied at the current of 35kV and below of rated voltage, the vacuum switch is environment-friendly, maintenance-free or maintenance-free, the current opening and closing capability is high, the oil switch and the SF6 switch are gradually replaced, the switch is divided into an electromagnetic mechanism, a spring mechanism, a permanent magnet mechanism and the like according to different working principles of an operating mechanism, the floor type high-voltage switch cabinet is lack of a device capable of hanging a temporary grounding wire when the circuit or the switch cabinet is overhauled, a bus chamber and a cable chamber have high safety risks before the bus does not have the grounding wire, the temporary grounding wire cannot be connected on a static contact on the bus side and the circuit side, the temporary grounding wire is inconvenient to operate and the safety is not high, and the device convenient to operate and the safety is suitable for the temporary frequent switch to perform grounding operation is needed.

The utility model discloses a portable vacuum circuit breaker equipment of permanent magnetism operating mechanism floor that current publication number is CN211125490U, belong to electrical equipment technical field, including car formula casing, the ground connection row, the propulsion semi-axis, the bearing frame, turbine reduction gear, handcart crank interlocking board, permanent magnetism operating mechanism movable core, the permanent magnetism operating mechanism, switch four-bar linkage, the interlocking round pin axle, the switch main shaft, the interlock pole, the running-board, pedal interlock travel switch, the switch contact, vacuum interrupter and secondary plug, this switch circuit breaker is equipped with the mechanism of permanent magnetism operation at the ground connection row and switch contact, be used for intercommunication busbar cable and ground wire, the upper contact arm of operation cabinet lacks the protection dustcoat, lack the aviation socket of connection regulator cubicle, the guard action that plays is limited.

Disclosure of utility model

The utility model aims to provide a grounding handcart for a floor type switch cabinet, which solves the problems that the existing switch cabinet lacks an upper contact protection structure and is not separated.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

The utility model provides a console mode cubical switchboard ground connection handcart, includes frame and fixed circuit breaker, fixed circuit breaker sets up on the frame, still include hand propulsion mechanism, ground contact, ground connection copper bar, utmost point post, go up contact arm and last contact, hand propulsion mechanism sets up on one lateral wall of frame, ground contact sets up on another lateral wall of frame, just ground contact is close to the bottom of frame, ground contact's one end with ground connection copper bar's one end links to each other, ground connection copper bar's the other end with the one end of utmost point post links to each other, the utmost point post sets up on fixed circuit breaker, the other end of utmost point post with it links to each other to go up the contact arm, go up the contact setting is in the tip of last contact arm, just go up the contact stretches out outside another lateral wall of frame, go up the contact with ground contact is in one side of frame can enter into the connection of hand cable in the cubical switchboard simultaneously under the promotion of hand propulsion mechanism.

Further, the fixed circuit breaker still includes installation skeleton and circuit breaker operating device, the installation skeleton sets up the frame top, circuit breaker operating device sets up on the installation skeleton, circuit breaker operating device includes button and energy storage hole, button and energy storage hole set up on the circuit breaker operating device, can realize frequent break-make operation after accomplishing cable bus ground connection to satisfy the requirement of test.

Preferably, the hand-operated pushing mechanism further comprises a shaking handle and an unlocking key, the hand-operated pushing mechanism comprises a rotating hole and a locking hole, the rotating hole and the locking hole are formed in one side wall of the frame, the shaking handle corresponds to the rotating hole and is used for providing power for pushing out the grounding handcart, and the unlocking key corresponds to the locking hole and is used for unlocking the grounding handcart.

Preferably, the circuit breaker further comprises a secondary aviation socket, wherein the secondary aviation socket is arranged at the top of the fixed circuit breaker and is used for connecting an aviation plug on the electrical switch cabinet, and the secondary aviation socket can be in signal communication with the switch cabinet after being connected to a cable bus, and frequent on-off operation is realized through control of the switch cabinet.

Further, the novel high-voltage power supply further comprises a vacuum bubble, wherein the vacuum bubble is arranged in the pole and used for switching on and off and arc extinction of a cable bus and a switch cabinet grounding system, and the novel high-voltage power supply can be used repeatedly, and is oil-free and pollution-free.

Still further still include the sleeve, the sleeve cover is established on the upper contact arm for the protection upper contact can also play the positioning effect when connecting the cable generating line.

Preferably, the three-phase cable bus comprises three upper contacts, and the three upper contacts are arranged in parallel, so that the three-phase cable bus can be simultaneously grounded.

Preferably, the post comprises an upper binding post and a lower binding post, and the upper binding post and the lower binding post are respectively arranged at two ends of the vacuum bulb, so that replacement and maintenance are facilitated.

Preferably, the upper contact arm comprises at least one bending part, so that the upper contact is parallel to the grounding contact, the connecting rear edge of the switch cabinet and the grounding handcart is tightly attached, no gap is reserved, and the use safety is improved.

More preferably, the ground connection handcart further comprises wheels, wherein the wheels are arranged at the bottom of the frame, so that the ground connection handcart is convenient to move.

The beneficial effects of the utility model are as follows:

(1) The grounding handcart of the floor type switch cabinet is provided with the fixed breaker, after the grounding contact and the upper contact of the handcart are communicated, the frequent on-off of a bus cable and a switch cabinet grounding system is realized through operating the fixed breaker, the bus cable grounding operation is realized by pushing the grounding handcart by a hand crank mechanism, the manual operation is safe, the failure rate is low, the grounding contact is connected with the upper contact through a grounding copper bar and after passing through an upper contact arm, the switching-on and switching-off operation is realized through the fixed breaking, the arc leakage is prevented by utilizing the insulation arc extinguishing characteristic of a vacuum bulb, the switching-off operation can be frequently performed, the frequent on-off grounding is realized, the field debugging requirement is met, and the sleeve is installed on the upper contact arm close to the upper contact, so that the functions of protecting the contact and assisting a plug wire are realized.

(2) The top on this console mode switch cabinet ground connection handcart is equipped with aviation socket, can link to each other with the aviation plug of cubical switchboard through aviation socket, realizes ground connection handcart and cubical switchboard electrical control signal intercommunication, through the control of cubical switchboard, can realize frequent break-make ground connection operation, stretches out outside another lateral wall of frame and ground contact parallel after the upper contact arm bending, can link to each other with the busbar ground steadily.

(3) The circuit breaker operating mechanism of the grounding handcart of the floor type switch cabinet is provided with an energy storage hole, the circuit breaker operating mechanism is operated by a manual operation handle, the pushing mechanism is provided with a rotating hole and a lock hole, the rotating hole and the lock hole correspond to a shaking handle and an unlocking key respectively, when the circuit breaker operating mechanism is operated, the locking of the pushing mechanism is released by using a key, and then the shaking handle is inserted into the rotating hole to operate the grounding handcart to be connected with or disconnected from a bus, so that the safety of an operator is improved.

Drawings

Fig. 1 is a front view of a grounding handcart of a floor type switch cabinet provided by the utility model;

Fig. 2 is a side view of a grounding handcart of a floor type switch cabinet provided by the utility model;

Fig. 3 is a top view of a grounding handcart of a floor type switch cabinet.

Reference numerals:

1. A frame; 2. a secondary aviation socket; 3. a fixed circuit breaker; 4. a circuit breaker operating mechanism; 41. a button; 42. an energy storage hole; 5. installing a framework; 6. a hand-operated propulsion mechanism; 61. a rotation hole; 62. a lock hole; 63. shaking the handle; 64. unlocking the key; 65. an energy storage handle; 7. a ground contact; 71. a grounding copper bar; 72. a partition plate; 73. vacuum soaking; 74. a pole; 741. an upper binding post; 742. a lower terminal; 75. an upper contact arm; 76. a sleeve; 77. and an upper contact.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, based on the examples in the application, which a person of ordinary skill in the art would obtain without inventive faculty, are within the scope of the utility model.

Example 1

As shown in fig. 1-3, this embodiment discloses a grounding handcart for a floor-type switch cabinet, including a frame 1 and a fixed breaker 3, the fixed breaker 3 is arranged on the frame 1, the fixed breaker 3 is used for switching on and off, the ground bus of the control switch cabinet is connected with and disconnected from a grounding system of the switch cabinet, further comprising a hand-operated propulsion mechanism 6, a ground contact 7, a ground copper bar 71, a pole 74, an upper contact arm 75 and an upper contact 77, the hand-operated propulsion mechanism 6 is arranged on one side wall of the frame 1, the ground contact 7 is arranged on the other side wall of the frame 1, the ground contact 7 is close to the bottom of the frame 1, one end of the ground contact 7 is connected with one end of the ground copper bar 71, the ground copper bar 71 is arranged parallel to the other side wall of the frame 1, the other end of the ground copper bar 71 is connected with one end of the pole 74, the pole 74 is arranged on the fixed breaker 3, the upper contact 77 is arranged at the end of the upper contact arm 75, the upper contact 77 extends out of the other side wall of the frame 1, the upper contact 77 faces the ground contact 7 to the ground bus 6, and the ground contact 7 is connected with the temporary bus through the cable system by moving the ground contact 7.

The fixed breaker 3 is directly fixed on the frame 1, so that the installation strength is improved, and the overall dimension of the grounding handcart of the floor type switch cabinet is completely the same as that of the breaker in the switch cabinet, so that the grounding handcart can be directly exchanged for use.

Further, still include installation skeleton 5 and circuit breaker operating device 4, installation skeleton 5 sets up at frame 1 top, circuit breaker operating device 4 sets up on installation skeleton 5, circuit breaker operating device 4 includes button 41 and energy storage hole 42, button 41 and energy storage hole 42 set up on circuit breaker operating device 4, fixed circuit breaker 3 direct control cable busbar and the break-make of the earthing system of cubical switchboard, fixed circuit breaker 3 is controlled by circuit breaker operating device 4, button 41 includes closing key and separating brake key, the operation of closing and separating brake of fixed circuit breaker 3 is controlled respectively, need rotate energy storage hole 42 and carry out the energy storage to the power unit in the circuit breaker operating device 4 when closing.

Still further still include shaking handle 63 and unblock key 64, hand propulsion mechanism 6 includes rotation hole 61 and lockhole 62, rotation hole 61 and lockhole 62 set up on the lateral wall of frame 1, shaking handle 63 corresponds rotation hole 61 for provide the power that the ground connection handcart was advanced and is released, unblock key 64 corresponds lockhole 62 for the unlocking ground connection handcart, lockhole 62 interlocks hand propulsion mechanism 6 and rotation hole 61, prevents the maloperation of ground connection handcart, causes the incident.

Preferably, the circuit breaker further comprises a secondary aviation socket 2, the secondary aviation socket 2 is arranged at the top of the fixed circuit breaker 3, the secondary aviation socket 2 can be connected with an aviation plug of the switch cabinet, the grounding handcart and the switch cabinet are in electric control signal intercommunication, the frequent on-off grounding operation can be realized through the control of the switch cabinet, and the operation is convenient.

Still further, still include sleeve 76, sleeve 76 cover is established on last contact arm 75 for the protection upper contact 77, and sleeve 76 is made by insulating material, and sleeve 76 is close to upper contact 77 and is arranged, can play the effect of auxiliary connection cable busbar location, and sleeve 76 covers the part that upper contact arm 75 stretches out to the frame 1 outside.

Preferably, the post 74 includes an upper post 741 and a lower post 742, the upper post 741 and the lower post 742 are respectively disposed at two ends of the vacuum bulb 73, and are connected to the upper contact arm 75 by the upper post 741, and the lower post 742 is connected to the ground copper bar 71, so that replacement is facilitated.

More preferably, a partition 72 is provided on the side of the pole 74 facing the switchgear cabinet for protection.

More preferably, the upper contact arm 75 includes at least one bending portion, and the upper contact arm 75 changes the connection direction with the pole 74, so that the upper contact 77 on the upper contact arm 75 can be directly pushed into the switch cabinet to complete the connection of the cable bus, the cable bus is not required to be taken out from the switch cabinet, the safety of overhauling and installation is improved, and the upper contact arm is convenient to replace in maintenance.

More preferably, the bicycle frame also comprises wheels 11, wherein the wheels 11 are arranged at the bottom of the bicycle frame 1, so that the bicycle frame is convenient to move and use.

More preferably, the vacuum bulb 73 is further included, the vacuum bulb 73 is arranged in the pole 74 for switching on and off the cable bus and the grounding system of the switch cabinet and extinguishing arc, and the vacuum bulb 73 is surrounded by the pole 74 and prevented from being subjected to external physical operation.

The vacuum bulb 73 is suitable for arc extinction of a 3-10 kV power distribution cabinet, when a movable contact and a static contact are switched off under the action of an action mechanism, an electric arc is generated between the contacts, steam is volatilized from the surface of the contact at high temperature, a magnetic field is generated when current passes through the contact, the electric arc rapidly moves along the tangential direction of the surface of the contact under the action of the magnetic field, partial metal steam is condensed on a metal cylinder, the electric arc is extinguished when natural zero crossing occurs, the medium strength between the contacts is rapidly recovered, the contact opening distance is small, the contact opening distance of a 10kV vacuum circuit breaker is only about 10mm, the operation work of the operation mechanism is small, the stroke of a mechanical part is also small, and the mechanical life is prolonged; the arcing time is short and is irrelevant to the magnitude of the switching current; after arc extinction, the recovery speed of the contact gap medium is high, and the fault performance of the close-break zone is good; the contact has small abrasion loss when the current is cut off, so that the electrical service life of the contact is prolonged, the noise is low during operation, and the contact is suitable for frequent operation; small volume and light weight.

The use process of the grounding handcart of the floor type switch cabinet is as follows:

The handcart frame 1 connects an upper contact 77 with a bus cable of a switch cabinet, connects a grounding contact 7 with a grounding system of the switch cabinet, inserts an unlocking key 64 into a lock hole 62 to open a rotating hole 61 for locking, inserts a shaking handle 63 into the rotating hole 61, rotates the shaking handle 63 to push the grounding handcart to move by a hand-operated propulsion mechanism 6, connects the bus cable with the upper contact 77, connects the grounding contact 7 with the grounding system of the switch cabinet, locks the rotating hole 61 by the unlocking key 64 after connection is completed, inserts an energy storage handle 65 into the energy storage hole 42, rotates clockwise, presses a closing key of a button 41 on the breaker operating mechanism 4 after energy storage of the breaker operating mechanism 4 is completed, operates the breaker operating mechanism 4 to close a vacuum bulb 73, and the fixed breaker 3 is in a closing state at the moment, so that connection between a cable bus of the switch cabinet and the grounding system of the switch cabinet is realized, and when connection between the cable bus and the grounding system of the switch cabinet is required to be disconnected, the breaking key of the button 41 is pressed by hand, the breaker operating mechanism 4 operates to separate the vacuum bulb 73, and the breaker operating mechanism 3 is in a state of breaking the cable of the switch cabinet and the switch cabinet.

Example two

The embodiment also discloses a console mode cubical switchboard ground connection handcart, and its difference lies in: the three upper contacts 77 are arranged in parallel, and the three upper contacts 77 are connected with one grounding contact 7 after being short-circuited through the grounding copper bar 71 and are used for realizing three-phase simultaneous grounding.

Variations and modifications to the above would be obvious to persons skilled in the art to which the utility model pertains from the foregoing description and teachings. Therefore, the utility model is not limited to the specific embodiments disclosed and described above, but some modifications and changes of the utility model should be also included in the scope of the claims of the utility model. In addition, although specific terms are used in the present specification, these terms are for convenience of description only and do not limit the present utility model in any way.

Claims (10)

1. The utility model provides a console mode cubical switchboard ground connection handcart, includes frame (1) and fixed circuit breaker (3), fixed circuit breaker (3) set up on frame (1), its characterized in that: still include hand propulsion mechanism (6), ground connection contact (7), ground connection copper bar (71), utmost point post (74), go up contact arm (75) and last contact (77), hand propulsion mechanism (6) set up on one lateral wall of frame (1), ground connection contact (7) set up on the other lateral wall of frame (1), just ground connection contact (7) are close to the bottom of frame (1), the one end of ground connection contact (7) with the one end of ground connection copper bar (71) links to each other, the other end of ground connection copper bar (71) with the one end of utmost point post (74) links to each other, utmost point post (74) set up on fixed circuit breaker (3), the other end of utmost point post (74) with go up contact arm (75) link to each other, go up contact (77) set up the tip of going up contact arm (75), just go up contact (77) stretch out to outside the other lateral wall of frame (1).

2. The floor-standing switchgear grounding handcart of claim 1, wherein:

The fixed circuit breaker (3) further comprises a mounting framework (5) and a circuit breaker operating mechanism (4), the mounting framework (5) is arranged at the top of the frame (1), the circuit breaker operating mechanism (4) is arranged in the mounting framework (5), the circuit breaker operating mechanism (4) comprises a button (41) and an energy storage hole (42), and the button (41) and the energy storage hole (42) are arranged on the circuit breaker operating mechanism (4).

3. The floor-standing switchgear grounding handcart of claim 1, wherein:

Still include shaking handle (63) and unlocking key (64), hand propulsion mechanism (6) are including rotating hole (61) and lockhole (62), rotate hole (61) with lockhole (62) set up on one lateral wall of frame (1), shake handle (63) correspond rotate hole (61) for provide the power that the ground connection handcart was advanced and is released, unlocking key (64) correspond lockhole (62) is used for unlocking the ground connection handcart.

4. A floor switch cabinet grounding handcart as claimed in claim 3, wherein:

The secondary aviation socket (2) is arranged at the top of the fixed breaker (3) and is used for being connected with an aviation plug on the electrical switch cabinet.

5. The floor-standing switchgear grounding handcart of claim 1, wherein:

The vacuum bulb (73) is arranged in the pole (74) and is used for switching on and switching off and arc extinction of the cable bus and the grounding system of the switch cabinet.

6. The floor-standing switchgear grounding handcart of claim 5, wherein:

The device further comprises a sleeve (76), wherein the sleeve (76) is sleeved on the upper contact arm (75) and is used for protecting the upper contact (77).

7. The floor-standing switchgear grounding handcart of claim 6, wherein:

comprises three upper contacts (77), and the three upper contacts (77) are arranged in parallel.

8. The floor-standing switchgear grounding handcart of claim 5, wherein:

the post (74) comprises an upper binding post (741) and a lower binding post (742), and the upper binding post (741) and the lower binding post (742) are respectively arranged at two ends of the vacuum bulb (73).

9. The floor-standing switchgear grounding handcart of claim 8, wherein:

The upper contact arm (75) comprises at least one curved portion.

10. The floor switch cabinet grounding handcart of any one of claims 1-9, wherein:

the bicycle frame also comprises wheels (11), wherein the wheels (11) are arranged at the bottom of the bicycle frame (1).