CN113013772A - Safe compact high tension switchgear - Google Patents

Abstract

The invention discloses a safe compact high-voltage switch cabinet, which comprises a cabinet body, an instrument room, a bus room, a switch room and a cable outlet room, wherein the instrument room, the bus room, the switch room and the cable outlet room are arranged in the cabinet body, the instrument room and the switch room are arranged up and down and are positioned on one side of the bus room, the cable outlet room is positioned below the bus room, the high-voltage switch cabinet also comprises a valve mechanism, a movable handcart and a grounding mechanism, the valve mechanism is arranged in the switch room, the handcart is movably arranged in the switch room, and the grounding. According to the high-voltage switch cabinet, the instrument room, the bus room, the switch room and the cable outlet room are effectively arranged, so that the whole high-voltage switch cabinet is more compact in structure; meanwhile, due to the arrangement of the valve mechanism and the grounding mechanism, the valve mechanism is provided with the locking plate, the driving plate can be locked, and the overhauling safety of operators when the handcart is withdrawn is ensured.

Description

Safe compact high tension switchgear

Technical Field

The invention relates to a safe and compact high-voltage switch cabinet.

Background

The handcart type high-voltage switch cabinet is characterized in that main electrical elements in the switch cabinet are mounted on a drawable handcart, and under the condition that a switch is disconnected, the handcart type high-voltage switch cabinet can be drawn out of the switch cabinet by hands after a guide rail is laid, so that the handcart type high-voltage switch cabinet can be overhauled or replaced. The handcart type high-voltage switch cabinet is more convenient to overhaul and replace electrical elements in the cabinet, so that the handcart type high-voltage switch cabinet is more and more widely applied.

When the handcart-type switch cabinet works, a handcart needs to be shaken into a working position, so that a moving contact on the handcart is matched with a static contact in a contact box, the handcart is electrified, and when the handcart exits, the static contact is sealed through a valve in the switch cabinet, so that the danger of electric shock caused by mistaken touch of personnel is avoided. However, the existing handcart type high-voltage switch cabinet has low space utilization rate and relatively overstaffed overall structure; on the other hand, after the handcart withdraws, when operating personnel overhauls, the valve is touched and made to open by mistake easily, and the potential safety hazard is very big.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a safe and compact high-voltage switch cabinet.

In order to achieve the purpose, the invention adopts the technical scheme that:

a safe compact high-voltage switch cabinet comprises a cabinet body, an instrument room, a bus room, a switch room and a cable outlet room, wherein the instrument room, the bus room, the switch room and the cable outlet room are arranged in the cabinet body, the instrument room and the switch room are arranged up and down and are positioned on one side of the bus room, the cable outlet room is positioned below the bus room, the high-voltage switch cabinet also comprises a valve mechanism, a movable handcart and a grounding mechanism, the valve mechanism is arranged in the switch room, the handcart is movably arranged in the switch room, and the grounding mechanism is arranged on the outer wall of the cabinet body;

the valve mechanism comprises two valves which are arranged up and down and are respectively arranged in a lifting manner, two valve driving assemblies which are respectively arranged on two sides of the switch chamber and are used for driving the valves to lift, each valve driving assembly comprises a main shaft connected to the inner wall of the switch chamber, two driving plates which are respectively rotatably connected to the main shaft and are used for driving the ends of the valves to lift, a first elastic part which is sleeved on the main shaft and is provided with two ends which are respectively connected with the two driving plates, a first driving column arranged on each driving plate, a mounting plate arranged on the main shaft, two locking plates which are respectively rotatably arranged on two sides of the mounting plate and are opposite in rotating direction, locking grooves which are arranged on the locking plates and are used for being clamped with the first driving columns, and a second elastic part which is respectively provided with the two locking plates and is arranged on the locking plates, A second drive post disposed on each of said locking plates;

the handcart comprises a handcart body and trigger pieces, wherein the trigger pieces are arranged on two sides of the handcart body and are respectively used for pushing the second driving column and the first driving column on two sides of the switch chamber.

Preferably, the rotation axes of the two driving plates extend along the horizontal direction and are parallel to the rotation axes of the two locking plates, and the moving direction of the handcart is perpendicular to the extending direction of the rotation axes of the two driving plates.

Preferably, the two driving plates forming each valve driving assembly are respectively used for driving the adjacent end parts of the two valves to lift, and the valve driving assembly further comprises a connecting rod, two ends of the connecting rod are respectively connected with the end parts of the valves and the driving plates.

Further preferably, the connecting rod and the first driving column are respectively located at both ends of the driving plate.

Preferably, the two driving plates are respectively connected to two ends of the main shaft, the first elastic member is a torsion spring, and the torsion spring is arranged on the main shaft between the two driving plates.

Preferably, the second elastic element is a tension spring, and two ends of the tension spring are respectively connected with the end parts of the two locking plates.

Preferably, the trigger part comprises two push plates which are arranged up and down, and each push plate comprises two plate bodies which are integrally formed and are vertical to each other.

Preferably, the grounding mechanism comprises a grounding switch operating hole, a grounding switch operating shaft for performing switching-on and switching-off operations of the grounding mechanism in cooperation with the grounding switch operating hole, and a locking assembly located on one side of the grounding switch operating hole, wherein the locking assembly comprises a first locking plate rotatably arranged on the cabinet body, and a locking piece for locking or unlocking the first locking plate and the cabinet body relatively;

the first lock plate has a locking position and an unlocking position, and when the first lock plate is in the locking position, the first lock plate is parallel to the outer wall of the cabinet body and is shielded on the grounding switch operating hole; when the first locking plate is located at the unlocking position, the first locking plate is separated from the grounding knife operating hole and is perpendicular to the outer wall of the cabinet body.

Further preferably, the locking piece includes set up in locking mouth on the first jam plate, locate on the first jam plate and be located the second jam plate of locking mouth lateral part, locate cooperation board on the cabinet body, work as when first jam plate is in the latched position, cooperation board wear to locate in the locking mouth and with the laminating of second jam plate mutually, the locking piece still including be used for with the second jam plate with the tool to lock of cooperation board relative locking and unblock.

Further preferably, the grounding mechanism further comprises a movable baffle arranged on the side of the grounding switch operating hole, the baffle is provided with a first position which is sheltered from the grounding switch operating hole and a second position which is separated from the grounding switch operating hole, the first lock plate is provided with a first limit port and a second limit port which are respectively corresponding to the first position and the second position, and when the first baffle is located at the locking position, the baffle can penetrate through the first limit port or the second limit port.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: according to the high-voltage switch cabinet, the instrument room, the bus room, the switch room and the cable outlet room are effectively arranged, so that the whole high-voltage switch cabinet is more compact in structure; meanwhile, due to the arrangement of the valve mechanism and the grounding mechanism, the valve mechanism is provided with the locking plate, the driving plate can be locked, and the overhauling safety of operators when the handcart is withdrawn is ensured.

Drawings

Fig. 1 is a schematic diagram of an internal structure of a high voltage switchgear in an embodiment of the present invention;

FIG. 2 is a schematic view of the trigger and shutter drive assembly of an embodiment of the present invention;

FIG. 3 is a schematic view of the direction A in FIG. 1;

FIG. 4 is a schematic diagram of the grounding mechanism with the first locking plate in the locked position in an exemplary embodiment of the invention;

fig. 5 is a schematic structural diagram of the grounding mechanism when the first lock plate is in the unlocked position in the embodiment of the present invention.

In the figure: 1. a cabinet body; 2. an instrument room; 3. a bus chamber; 4. a switch chamber; 5. a cable outlet chamber; 6. a handcart; 6a, a handcart body; 6b, a trigger piece; 6b1, push plate; 7. a shutter; 8. a shutter drive assembly; 8a, a main shaft; 8b, a driving plate; 8c, a first drive column; 8d, mounting plates; 8e, a locking plate; 8e1, lock groove; 8f, a second elastic piece; 8g, a second driving column; 9. a connecting rod; 10. a grounding knife operation hole; 11. a locking assembly; 11a, a first locking plate; 11b, a locking member; 11b1, locking port; 11b2, a second locking plate; 11b3, mating plates; 12. a baffle plate; 13. a first limit port; 14. a second limit port; 15. a meter; 16. a bus bar; 17. an outgoing cable; 18. a contact box; 19. a lock hole; 20. a viewing port; 21. a fixing plate;

t, a grounding mechanism.

Detailed Description

The technical scheme of the invention is further explained by combining the attached drawings.

The invention relates to an improvement on a high-voltage switch cabinet, and the improved high-voltage switch cabinet has the advantages that the structure of the whole high-voltage switch cabinet is more compact through the effective arrangement of an instrument 15 chamber 2, a bus chamber 3, a switch chamber 4 and a cable outlet chamber 5; meanwhile, due to the arrangement of the valve mechanism and the grounding mechanism T, the valve mechanism is provided with the locking plate 8e, the driving plate 8b can be locked, and the overhauling safety of an operator when the handcart 6 is withdrawn is ensured.

Referring to fig. 1-5, a safe and compact high-voltage switch cabinet is shown, which comprises a cabinet body 1, an instrument 15 chamber 2, a bus chamber 3, a switch chamber 4 and a cable outlet chamber 5, wherein the instrument 15 chamber 2 and the switch chamber 4 are arranged up and down and are located on one side of the bus chamber 3, the cable outlet chamber 5 is located below the bus chamber 3, the high-voltage switch cabinet further comprises a valve mechanism arranged in the switch chamber 4, a movable handcart 6 arranged in the switch chamber 4 and a grounding mechanism T arranged on the outer wall of the cabinet body 1.

As shown in fig. 1, the instrument 15 chamber 2 is used for accommodating various instruments 15, the bus bar 16 is disposed in the bus chamber 3, the handcart 6 is used for entering and exiting from the switch chamber 4, the outgoing cable 17 is disposed in the cable outgoing chamber 5, and meanwhile, the contact boxes 18 with built-in static contacts are respectively disposed in the bus chamber 3 and the cable outgoing chamber 5 and used for enabling a moving contact on the handcart 6 to be matched with and electrified.

Further, the valve mechanism comprises two valves 7 which are arranged up and down and are respectively arranged in a lifting manner, and two valve driving assemblies 8 which are respectively arranged at two sides of the switch chamber 4 and are used for driving the valves 7 to lift.

As shown in fig. 2, each shutter driving assembly 8 includes a spindle 8a connected to the inner wall of the switch chamber 4, two driving plates 8b rotatably connected to the spindle 8a and having opposite rotation directions for driving the end of the shutter 7 to ascend and descend, a first elastic member (not shown in the figure) sleeved on the spindle 8a and having two ends respectively connected to the two driving plates 8b, a first driving post 8c disposed on each driving plate 8b, a mounting plate 8d disposed on the spindle 8a, two locking plates 8e rotatably disposed on two sides of the mounting plate 8d and having opposite rotation directions, a locking groove 8e1 opened on the locking plate 8e and used for being engaged with the first driving post 8c, a second elastic member 8f having two ends respectively connected to the two locking plates 8e, and a second driving post 8g disposed on each locking plate 8 e; the handcart 6 comprises a handcart body 6a, and triggering pieces 6b which are arranged on two sides of the handcart body 6a and are respectively used for pushing a second driving column 8g and a first driving column 8c on two sides of the switch chamber 4.

Thus, when the handcart 6 is shaken in, the triggering pieces 6b on the two sides of the handcart can firstly push the second driving column 8g to enable the locking plate 8e to rotate, the first driving column 8c is separated from the locking groove 8e1, then the triggering pieces 6b reach the first driving column 8c to push the first driving column 8c to enable the driving plate 8b to rotate, so that the valve 7 is driven to lift and open, and finally, the moving contact on the handcart 6 can be inserted into the contact box 18 and is matched with the static contact to enable the handcart 6 to be electrified, so that the high-voltage switch cabinet is switched on;

after the handcart 6 is shaken out, the two driving plates 8b reset under the action of the first elastic piece and drive the valve 7 to be closed, then the two locking plates 8e reset under the drive of the second elastic piece 8f, and the locking grooves 8e1 are clamped with the first driving columns 8c again, so that the valve 7 is prevented from being opened by mistake.

In the present embodiment, the rotation axes of the two drive plates 8b extend in the horizontal direction and are parallel to the rotation axes of the two lock plates 8e, and the moving direction of the hand truck 6 is perpendicular to the extending direction of the rotation axes of the two drive plates 8 b.

The two driving plates 8b forming each valve driving assembly 8 are respectively used for driving the adjacent end portions of the two valves 7 to lift, each valve driving assembly 8 further comprises a connecting rod 9, two ends of each connecting rod 9 are respectively connected with the end portion of each valve 7 and the corresponding driving plate 8b, each connecting rod 9 and the corresponding first driving column 8c are respectively located at two ends of each driving plate 8b, each connecting rod 9 is connected to one end, close to the corresponding contact box 18, of each driving plate 8b, and each first driving column 8c is located at one end, far away from the corresponding contact box 18, of each.

Further, the two driving plates 8b are respectively connected to two ends of the main shaft 8a, the first elastic member is a torsion spring, and the torsion spring is arranged on the main shaft 8a between the two driving plates 8 b. The second elastic element 8f is a tension spring, and two ends of the tension spring are respectively connected with the end parts of the two locking plates 8 e. Here, the two ends of the tension spring are connected to the ends of the two locking plates 8e remote from the contact box 18.

In this embodiment, as shown in fig. 2, the trigger 6b includes two push plates 6b1 arranged up and down, and each push plate 6b1 includes two plate bodies that are integrally formed and perpendicular to each other. Wherein, push pedal 6b1 becomes the L type, and two board bodies include the first board body that extends along the horizontal direction and the second board body that extends along upper and lower direction, second board body connect in the one end that contact box 18 is close to first board body has the clearance between two push pedal 6b1, and when handcart 6 shakes in, valve drive assembly 8 can penetrate in the clearance.

In this embodiment, as shown in fig. 4 to 5, the grounding mechanism T includes a grounding switch operating hole 10, a grounding switch operating shaft for performing switching operation of the grounding mechanism T in cooperation with the grounding switch operating hole 10, and a locking assembly 11 located at one side of the grounding switch operating hole 10, where the locking assembly 11 includes a first locking plate 11a rotatably disposed on the cabinet body 1, and a locking member 11b for locking or unlocking the first locking plate 11a and the cabinet body 1 relatively. The rotation axis of the first lock plate 11a extends in the vertical direction, and the ground blade operating hole 10 is located on one side of the first lock plate 11a in the horizontal direction.

In this example, the first lock plate 11a has a locking position and an unlocking position, and when the first lock plate 11a is in the locking position, the first lock plate 11a is parallel to the outer wall of the cabinet body 1 and is shielded on the grounding switch operating hole 10; when the first locking plate 11a is in the unlocking position, the first locking plate 11a is separated from the grounding switch operating hole 10 and is perpendicular to the outer wall of the cabinet body 1. Therefore, after the opening and closing operation is finished, only the first locking plate 11a needs to be rotated to the locking position and the grounding switch operation hole 10 is shielded, and meanwhile, the first locking plate 11a and the cabinet body 1 are locked relatively by the locking piece 11b, so that the occurrence of misoperation can be thoroughly avoided; when the switch is required to be switched on and switched off, the switch-off operation can be completed by freely inserting the grounding switch operating shaft into the grounding switch operating hole 10 only by unlocking the locking piece 11b and rotating the first locking plate 11a to the unlocking position.

Further, as shown in fig. 4, the locking member 11b includes a locking opening 11b1 opened on the first locking plate 11a, a second locking plate 11b2 provided on the first locking plate 11a and located at a side of the locking opening 11b1, and an engaging plate 11b3 provided on the cabinet body 1, wherein when the first locking plate 11a is in the locking position, the engaging plate 11b3 is inserted into the locking opening 11b1 and engaged with the second locking plate 11b2, and the locking member 11b further includes a lock (not shown in the figure) for locking and unlocking the second locking plate 11b2 and the engaging plate 11b3 relatively. The second locking plate 11b2 and the matching plate 11b3 are locked relatively by the lock, so that the first locking plate 11a and the cabinet body 1 can be locked, and misoperation is avoided.

The lock is a padlock which is purchased from other places, and the second lock plate 11b2 and the matching plate 11b3 are respectively provided with a lock hole 19 which is matched with the padlock.

The grounding mechanism T further comprises a baffle 12 movably arranged on the side of the grounding knife operating hole 10, and the baffle 12 has a first position for shielding the grounding knife operating hole 10 and a second position for separating from the grounding knife operating hole 10. The blocking plate 12 is a mechanical interlocking blocking plate 12, which can be interlocked with the grounding mechanism T, when the grounding mechanism T is opened, the blocking plate 12 is located at a first position and can block the grounding switch operating hole 10, and when the grounding mechanism T is closed, the blocking plate 12 is located at a second position and is separated from the grounding switch operating hole 10. The specific structure of the baffle 12 is prior art and will not be described herein.

The innovation points of the embodiment are as follows: as shown in fig. 4, the first locking plate 11a is provided with a first limiting opening 13 and a second limiting opening 14 corresponding to the first position and the second position, respectively, and when the first blocking plate 12 is located at the locking position, the blocking plate 12 can be inserted into the first limiting opening 13 or the second limiting opening 14. Therefore, the first limiting opening 13 and the second limiting opening 14 can accommodate the baffle 12, and after the grounding switch mechanism is switched on and off, no matter the baffle 12 is in the first position or the second position, the relative locking between the first locking plate 11a and the cabinet body 1 is not influenced; meanwhile, the first limiting port 13 and the second limiting port 14 can also play a role in limiting the baffle 12, and the influence on the normal operation of the grounding mechanism T caused by mistakenly pushing the baffle 12 is avoided.

Furthermore, the locking assembly 11 further includes an observation port 20 having two ends respectively communicated with the first limiting port 13 and the second limiting port 14, and a caliber of the observation port 20 is smaller than calibers of the first limiting port 13 and the second limiting port 14. By arranging the observation port 20, the observation of the switching-on and switching-off conditions can be realized without influencing the shielding of the grounding knife operation hole 10.

The locking assembly 11 further comprises a fixing plate 21 for connecting with the outer wall of the cabinet body 1, the fixing plate 21 is connected with the outer wall of the cabinet body 1 through bolts, and the first locking plate 11a is hinged on the fixing plate 21.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims (10)

1. The utility model provides a safe compact high tension switchgear, includes the cabinet body, locates this internal instrument room, generating line room, cubical switchboard and the cable room of being qualified for the next round of competitions of cabinet, its characterized in that: the high-voltage switch cabinet also comprises a valve mechanism arranged in the switch chamber, a movable handcart arranged in the switch chamber and a grounding mechanism arranged on the outer wall of the cabinet body;

the valve mechanism comprises two valves which are arranged up and down and are respectively arranged in a lifting manner, two valve driving assemblies which are respectively arranged on two sides of the switch chamber and are used for driving the valves to lift, each valve driving assembly comprises a main shaft connected to the inner wall of the switch chamber, two driving plates which are respectively rotatably connected to the main shaft and are used for driving the ends of the valves to lift, a first elastic part which is sleeved on the main shaft and is provided with two ends which are respectively connected with the two driving plates, a first driving column arranged on each driving plate, a mounting plate arranged on the main shaft, two locking plates which are respectively rotatably arranged on two sides of the mounting plate and are opposite in rotating direction, locking grooves which are arranged on the locking plates and are used for being clamped with the first driving columns, and a second elastic part which is respectively provided with the two locking plates and is arranged on the locking plates, A second drive post disposed on each of said locking plates;

the handcart comprises a handcart body and trigger pieces, wherein the trigger pieces are arranged on two sides of the handcart body and are respectively used for pushing the second driving column and the first driving column on two sides of the switch chamber.

2. A safe and compact high voltage switchgear, according to claim 1, characterized in that: the rotation axis of two drive plates extend along the horizontal direction and with the rotation axis of two lockplates parallel, the moving direction of handcart with the extending direction of the rotation axis of two drive plates mutually perpendicular.

3. A safe and compact high voltage switchgear, according to claim 1, characterized in that: the two driving plates forming each valve driving assembly are respectively used for driving the adjacent end parts of the two valves to lift, and the valve driving assembly further comprises a connecting rod, two ends of the connecting rod are respectively connected with the end parts of the valves and the driving plates.

4. A safe and compact high voltage switchgear, according to claim 3, characterized in that: the connecting rod and the first driving column are respectively positioned at two ends of the driving plate.

5. A safe and compact high voltage switchgear, according to claim 1, characterized in that: the two driving plates are respectively connected to two ends of the main shaft, the first elastic piece is a torsion spring, and the torsion spring is arranged on the main shaft between the two driving plates.

6. A safe and compact high voltage switchgear, according to claim 1, characterized in that: the second elastic piece is a tension spring, and two ends of the tension spring are respectively connected with the end parts of the two locking plates.

7. A safe and compact high voltage switchgear, according to claim 1, characterized in that: the trigger piece includes two push plates of arranging from top to bottom, every the push plate respectively including integrated into one piece and mutually perpendicular's two board bodies.

8. A safe and compact high voltage switchgear, according to claim 1, characterized in that: the grounding mechanism comprises a grounding knife operating hole, a grounding knife operating shaft and a locking assembly, the grounding knife operating shaft is used for being matched with the grounding knife operating hole to carry out switching-on and switching-off operation of the grounding mechanism, the locking assembly is positioned on one side of the grounding knife operating hole, and the locking assembly comprises a first locking plate and a locking piece, the first locking plate is rotatably arranged on the cabinet body, and the locking piece is used for locking or unlocking the first locking plate and the cabinet body relatively;

the first lock plate has a locking position and an unlocking position, and when the first lock plate is in the locking position, the first lock plate is parallel to the outer wall of the cabinet body and is shielded on the grounding switch operating hole; when the first locking plate is located at the unlocking position, the first locking plate is separated from the grounding knife operating hole and is perpendicular to the outer wall of the cabinet body.

9. A safe and compact high voltage switchgear, according to claim 8, characterized in that: the locking piece is including seting up in locking mouth on the first jam plate, locating just be located on the first jam plate the second jam plate of locking mouth lateral part, locating cooperation board on the cabinet body works as when first jam plate is in locking position, cooperation board wears to locate in the locking mouth and with the second jam plate is laminated mutually, the locking piece still including be used for with the second jam plate with the tool to lock of cooperation board relative locking and unblock.

10. A safe and compact high voltage switchgear, according to claim 8, characterized in that: earthing mechanism still includes mobilizable locating the baffle of ground connection sword handle hole lateral part, the baffle have shelter from in first position on the ground connection sword handle hole and break away from the second position of ground connection sword handle hole, seted up on the first jam plate respectively with first position with the corresponding first spacing mouth of second and the spacing mouth of second position, work as when first baffle is in latched position, the baffle can wear to locate first spacing mouth or in the spacing mouth of second.

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