CN115938834A

CN115938834A - Medium-voltage switch cabinet interlocking mechanism and machining process thereof

Info

Publication number: CN115938834A
Application number: CN202211333579.4A
Authority: CN
Inventors: 高中山; 李严
Original assignee: Wangu Electric Co ltd
Current assignee: Wangu Electric Co ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-04-07
Anticipated expiration: 2042-10-28
Also published as: CN115938834B

Abstract

An interlocking mechanism of a medium-voltage switch cabinet comprises an operating handle connecting piece, a first supporting piece, a grounding switch swing arm, a swing arm locking piece, a transmission connecting piece and a second supporting piece; the second support piece is provided with a first assembly base surface, the transmission connecting piece is provided with a second assembly base surface, a locking unit capable of swinging is arranged between the first assembly base surface and the second assembly base surface, and the locking unit is locked with/unlocked from the locked part when the locking unit is switched on/off; the second support element has a third assembly base surface, on which first connection nodes are arranged, on which first connection nodes an elastic pull element is arranged, which has a predetermined shape and is tensile, and the transmission connection element has a fourth assembly base surface, on which second connection nodes are arranged, which allow the elastic pull element to spring back to the predetermined shape and guide the movement of the transmission connection element when the locking element is unlocked. The invention has the advantages of convenient assembly, smooth use after assembly and good stability.

Description

Medium-voltage switch cabinet interlocking mechanism and machining process thereof

Technical Field

The invention relates to the technical field of interlocking mechanisms, in particular to a medium-voltage switch cabinet interlocking mechanism and a machining process thereof.

Background

The interlocking of the grounding switch in the switch cabinet is an important part of the switch cabinet body, when the grounding switch in the cabinet body is switched off, the rear door of the cabinet body is not allowed to be opened, so that an operator is prevented from entering an electrified interval by mistake; when the back door is not closed, the grounding switch can not be opened, thereby ensuring the safe operation of human bodies and the power grid. Therefore, the interlocking device matched with the back door is arranged in the interlocking part of the earthing switch of the switch cabinet.

The existing interlocking device for the rear door of the switch cabinet has two modes: 1. the grounding switch operating shaft directly extends to the cabinet and then is interlocked with the rear door, and the electrical insulation of the switch cabinet is met by sleeving an insulating tube on the outer layer of the operating shaft, so that the reliability is poor, and the insulating tube is easy to break down to cause faults; 2. the rear half section of the grounding switch operating shaft is replaced by an insulating rod and extends to the rear of the cabinet to be interlocked with the rear door, the mode enables the reliability of the insulating property of the switch cabinet to be improved, but the cost is higher, in order to solve the problem, the publication No. CN205428759U discloses a switch cabinet rear door interlocking device which comprises a door post, a supporting mechanism A, a supporting mechanism B, an operating shaft and a transmission mechanism arranged between the supporting mechanism A and the supporting mechanism B, wherein the transmission mechanism consists of a transmission rod, a pin shaft A, a pin shaft B, a reset spring and a connecting plate, the reset spring is sleeved on the pin shaft B, and the pin shaft A and the pin shaft B are connected with one end of the transmission rod through the connecting plate; one end of the transmission rod penetrates through a hole formed in the supporting mechanism A, the pin shaft A and the pin shaft B penetrate through corresponding holes formed in the supporting mechanism A respectively, the door post is matched with the pin shaft A, the pin shaft A is connected with the locking hook through the connecting shaft, and the … … rear door cannot be opened at the moment. Although the interlocking device can solve the problem of high cost of the interlocking device in the prior art, the following defects still exist:

1. the mechanical structure of the mechanism and the transmission efficiency of the mechanism are as follows: the three lines are completely misaligned, are arranged in a triangular manner, and are greatly subjected to resistance during movement, so that the mechanism cannot be reset by the reset spring, and the mechanical structure is completely unreasonable.

2. The operation stability and reliability are as follows: the precision requirement of the mechanism itself, the easy jamming of transmission, it is poor to the deformation adaptability of cabinet body, door plant, and the equipment is transported the back or the storage ground is slightly uneven and brings the tiny deformation all probably lead to mechanism's transmission or cooperation malfunctioning, so stability, reliability are all relatively poor.

3. In the aspect of processing efficiency: the workpieces are various in types, such as injection molding parts, steel casting parts, mechanical processing parts, sheet metal parts and the like; the variety of workpieces leads to the increase of related suppliers; the working procedures are more, turning, milling, planing, casting, drilling, tapping, plating and welding are involved, and the machining efficiency of the mechanism is seriously low.

4. Assembly and debugging accuracy: workpieces are various, the matching requirement precision is relatively high, but the machining precision of a sheet metal part of the mechanism can not be met frequently, the bending angle of the side plate is different from the pressing degree of the double sides, and the transmission precision requirement of the mechanism can not be met frequently due to the fact that the whole precision is caused.

5. Assembly and commissioning efficiency aspects: the work piece is various, and the cooperation requires the precision relatively higher, and the sheet metal component machining precision of mechanism self often can not satisfy, and the curb plate angle of bending is different with this limit die-pressing degree on two sides, leads to the requirement that whole precision often can not satisfy mechanism's transmission precision, so the efficiency of assembly and debugging is serious low.

6. The equipment transportation and storage conditions require the aspects that: the workpiece can accurately act only when the requirement on the assembly error, such as slight deformation of equipment or slight change of the position of an internal workpiece caused by vibration during transportation, and the mechanism can not necessarily meet the functional requirement of a product when working; similarly, if the foundation stored by the equipment is not flat enough, the foundation is slightly deformed and displaced, and the functional requirements of the product can not be met;

7. the motion stroke is little, and adaptability is poor: the main transmission stroke is only 12 mm, the width of the baffle is 10 mm, and the gap is too small.

Disclosure of Invention

The present invention is to solve the above-mentioned drawbacks of the prior art, and provides an interlocking mechanism for a medium voltage switchgear to solve the above-mentioned problems.

The invention adopts the technical scheme for solving the technical problems that: the interlocking mechanism of the medium-voltage switch cabinet comprises an operating handle connecting piece connected with an operating handle of an earthing switch, a first supporting piece, an earthing switch swinging arm, a swinging arm locking piece, a transmission connecting piece and a second supporting piece, wherein the first supporting piece is arranged on the operating handle connecting piece and is suitable for the operating handle connecting piece to rotate around the axis of the first supporting piece, the earthing switch swinging arm is arranged at the other end of the operating handle connecting piece and is positioned on one side of the first supporting piece, the swinging arm locking piece is arranged on the first supporting piece and is suitable for being subjected to opening-closing dislocation unlocking/closing overlapping locking with the earthing switch swinging arm, the transmission connecting piece is arranged on the swinging arm locking piece and is suitable for acting along with the locking/unlocking action of the swinging arm locking piece, and the second supporting piece is arranged on the transmission connecting piece and is suitable for the transmission connecting piece to move along the locking/unlocking direction;

the second supporting piece is provided with a first assembly base surface, the transmission connecting piece is provided with a second assembly base surface, a locking unit which can swing under the action of movement of the transmission connecting piece is arranged between the first assembly base surface and the second assembly base surface, and the locking unit is locked/unlocked with the locked component when opening/closing;

the second support element has a third assembly base surface on which connection nodes are arranged, on which connection nodes an elastic pull-out element is arranged, which has a predetermined shape and is pulled out and can be pulled out, and the transmission connection element has a fourth assembly base surface on which connection elements are arranged, which allow the elastic pull-out element to spring back to the predetermined shape when the locking element is unlocked and guide the transmission connection element to move to an initial position in the state assumed when the locking element is fully unlocked.

Further perfection, the second supporting piece is set to be a thin plate component with thickness, the second supporting piece is bent twice to form three parts, one part is used for later-stage installation, the second part is perpendicular to the moving direction of the transmission connecting piece and is used for setting a third assembly base surface, and the third part is parallel to the moving direction of the transmission connecting piece and is used for setting the first assembly base surface.

Further perfected, the swing arm lock piece is provided with a fifth assembly base surface, and at least two positioning units are arranged on the fifth assembly base surface; the transmission connecting piece is provided with a first assembling matching surface which is opposite to the fourth assembling base surface and is contacted with the fifth assembling base surface, and the first assembling matching surface is provided with a plurality of positioning nodes for limiting the final mounting position of the transmission connecting piece on the swing arm locking piece; the positioning unit is arranged in the corresponding positioning node along the assembling direction and can generate extrusion force of the fifth assembling base surface and the first assembling matching surface when in contact and constraint force for preventing the transmission connecting piece from deflecting when moving; the number of positioning nodes is greater than the number of positioning units.

Further perfecting, a guide channel for the transmission connecting piece to pass through and providing at least four direction constraints is arranged on the third assembly base surface; the transmission connecting piece is provided with a dislocation part which is positioned between the part provided with the second assembly base surface and the part provided with the fourth assembly base surface and enables the two parts to be in front and back dislocation distribution, and the elastic dragging unit can generate a tension force which enables the elastic dragging unit to be always kept in a tight state when being connected with the connecting joint and the connecting unit through the dislocation arrangement of the dislocation part; the joint of the dislocation part and the part where the second assembly base surface is provided serves as a stop structure, and the lock unit completely exhibits a state exhibited by the complete unlocking when the stop structure is moved into the guide passage.

Further perfection, the locking unit comprises a connecting body and an extending body which extends out of the connecting body and forms an included angle of more than 90 degrees with the connecting body; the connecting body is provided with a second assembly matching surface which is respectively contacted with the first assembly base surface and a third assembly matching surface which is contacted with the second assembly base surface, and the first assembly base surface, the second assembly matching surface and the third assembly matching surface are all provided with plug-in connection nodes; a shaft piece used as a guide medium for the rotation of the connecting body is arranged in the plug-in connection point; the extension body is provided with a locking node and a guide passage for guiding the member to be locked to the locking node in the locking direction.

Further perfection, the shaft piece is provided with a fixed part which prevents the shaft piece from continuously moving towards the entering direction and being held when entering the insertion joint at one end close to the first assembly base surface or the end far away from the second assembly base surface, and is provided with a movable part which prevents the shaft piece from moving towards the direction far away from the entering direction and being held when entering the insertion joint at one end far away from the first assembly base surface or the end close to the second assembly base surface, and the movable part is allowed to rotate along the axial direction of the shaft piece and move when rotating.

And a limiting structure arranged on the shaft element is arranged between the second assembly matching surface and the third assembly base surface, and the limiting structure limits the swinging amplitude of the connecting body when the locking unit is locked with the to-be-locked part in the opening state so that the extending body and the transmission connecting part are in a parallel state to show the state that the to-be-locked part completely exists in the locking node on the extending body.

Further perfected, the locking node comprises a semi-surrounding wall formed on the extending body and a transition space which is limited in the semi-surrounding wall and allows the locked part to rapidly enter/rapidly exit the locking node after the locking unit is actively moved by the transmission connecting piece during switching on/off of the locked part; the half wall is provided with a side stop structure for extending the path length of the guide path in the extension body to first contact the member to be locked in the assembly direction and preventing the member to be locked from deviating from the position of the locking node.

Further preferably, the semi-surrounding wall is formed with an abutting wall which abuts completely on a surface of the member to be locked when the member to be locked reaches the locking node.

A process for manufacturing the interlocking mechanism of the medium voltage switch cabinet as claimed in claims 1 to 9, wherein the process comprises the following steps: including fixed frame, install conveyer on the bottom inner wall of fixed frame, conveyer's both sides all are equipped with the processing apparatus who fixes on fixed frame bottom inner wall, be fixed with the locating lever that the symmetry set up between the top inner wall of fixed frame and the bottom inner wall, the activity is equipped with reply device on the locating lever, install perforating device on the top inner wall of fixed frame, perforating device is last to be fixed with the reinforcing apparatus who is located its bilateral symmetry distribution, the drain device that the symmetry set up is installed to the top inner wall of fixed frame, every drain device is equipped with the liquid case that sets up at the top outer wall of fixed frame, be provided with the circulating filter who still uses with the processing apparatus cooperation between two liquid cases, concrete step is as follows:

s1, transmission: the transmission connecting piece or the second supporting piece needing to be punched is conveyed to the lower part of the punching device through the conveying device;

s2, punching: after the transmission connecting piece or the second supporting piece to be processed is in place, the punching device is started, so that the drill bit reaches a punching position on the transmission connecting piece or the second supporting piece, meanwhile, in order to ensure the stability and avoid the complexity of manual clamping, and when the drill bit is about to punch the hole in place, the reinforcing device firstly clamps and fixes the transmission connecting piece or the second supporting piece, so that the punching stability in the punching stage and the quality of a formed hole are ensured, and the liquid guide device is started to cool the drill bit in the punching process;

s3, cleaning: after the punching is finished, the processing device is started, and scraps generated by punching are mixed with cooling liquid for cleaning, so that the cleanliness of a table top on which the transmission connecting piece or the second supporting piece is placed is ensured, namely the stable placement of the transmission connecting piece or the second supporting piece is ensured;

s4, recycling: the cooling liquid with the chips after being cleaned is recycled through the circulating filter device, and the chips with the chips after being recycled are filtered to further distribute the basically pure cooling liquid into the two liquid tanks again to serve as the reusable cooling liquid.

The invention has the beneficial effects that:

1. the mechanical structure of the mechanism and the transmission efficiency of the mechanism are as follows: the unreasonable structure that the elastic dragging unit and the auxiliary transmission line of one shaft member, the active transmission line matched with the other shaft member and the locking unit, and the passive transmission line connected with the transmission connecting piece in motion are changed, the three lines are not overlapped, the motion line is completely overlapped with the active or passive stress direction, the resistance force in motion is extremely small, the phenomenon that the reset spring cannot reset the mechanism can not occur, and the mechanical structure is completely reasonable;

2. the operation stability and reliability are as follows: the novel mechanism has reasonable mechanical structure and high transmission efficiency, so that the deformation adaptability to the cabinet body and the door plate is greatly improved, and the transmission or the matching failure of the mechanism cannot be caused by small deformation caused by slight unevenness of equipment or a storage foundation after the equipment is transported, so that the stability and the reliability are greatly improved;

3. in the aspect of processing efficiency: the types of the workpieces are reduced, injection molding parts, steel casting parts and mechanical machining parts are omitted, only sheet metal parts are reserved, the machining mode is single, and efficiency is improved; in the process aspect, the processes of turning, milling, planing, casting and the like are omitted, and the efficiency is obviously improved;

4. assembly and debugging accuracy: the number of workpieces is reduced, the number of connecting points is reduced, the matching required precision is relatively reduced, the reserved clearance of the sheet metal part processing design of the mechanism is enough, the bending angle of the side plate is different from the degree of dead pressing of the two sides, so that the integral precision error does not influence the transmission precision of the mechanism, the natural assembly efficiency is obviously improved, and the debugging workload is obviously reduced;

5. assembly and commissioning efficiency aspects: the number of workpieces is reduced, the number of connecting points is reduced, and the assembly efficiency is obviously improved; the design is reasonable, three-line motion transmission is changed into single-line motion transmission, and the device can be used after assembly is finished without debugging;

6. the equipment transportation and storage conditions require the aspects that: the mechanism has reasonable structure, high transmission efficiency, small design value of motion resistance and enough reserved clearance, so the mechanism can accurately act without high requirement on the difference form and position error, and the mechanism has no influence on meeting the functional requirement of a product when the mechanism works, if the position of an internal workpiece is slightly changed due to slight deformation or vibration of equipment in the process of transferring; similarly, if the foundation stored by the equipment is not flat enough, the foundation is slightly deformed and displaced, and the functional phenomenon that the product cannot be met does not occur;

7. the motion stroke is enlarged, and the adaptability is strengthened: the transmission stroke is changed into 16 mm, so that the fit clearance between the operation stopping key and the operation stopping groove is reasonable and moderate.

Drawings

Fig. 1 is a schematic structural view of the present invention disposed in a medium voltage switchgear, wherein a rear door of the medium voltage switchgear is opened, and a ground switch is closed;

fig. 2 is a schematic structural view of the present invention disposed in a medium voltage switchgear, wherein a rear door of the medium voltage switchgear is closed, and a grounding switch is in an open state;

FIG. 3 is a schematic structural view of the present invention;

FIG. 4 is a schematic enlarged partial view of the present invention from the front to the left;

FIG. 5 is a schematic enlarged partial view of the right side of the present invention;

FIG. 6 is a schematic view of a locking unit according to the present invention;

FIG. 7 is a schematic view of a partial full-section structure of the front face of the present invention;

FIG. 8 is a schematic diagram of a punching apparatus for implementing the process of the present invention;

FIG. 9 is a schematic diagram illustrating the operation of the circulating filter device in the punching apparatus according to the present invention;

FIG. 10 is a schematic view showing the construction of a pressurizing unit and a flow dividing unit in the circulating filter apparatus of the present invention;

FIG. 11 is a schematic view of a driving unit in the circulating filter apparatus according to the present invention;

fig. 12 is a partially enlarged view of a portion a of fig. 11 according to the present invention.

Detailed Description

The invention will be further described with reference to the accompanying drawings in which:

example 1

The interlocking mechanism of the medium-voltage switch cabinet shown in figures 1-3: the grounding switch comprises an operating handle connecting piece 1 connected with an operating handle of a grounding switch, a first supporting piece 2 arranged on the operating handle connecting piece 1 and suitable for the operating handle connecting piece 1 to rotate around the axis of the grounding switch, a grounding switch swing arm 3 arranged at the other end of the operating handle connecting piece 1 and positioned at one side of the first supporting piece 2, a swing arm locking piece 4 arranged on the first supporting piece 2 and suitable for being in opening-dislocation unlocking/closing overlapping locking with the grounding switch swing arm 3, a transmission connecting piece 5 arranged on the swing arm locking piece 4 and suitable for acting along with the locking/unlocking action of the swing arm locking piece 4, and a second supporting piece 6 arranged on the transmission connecting piece 5 and suitable for the transmission connecting piece 5 to move along the locking/unlocking direction; the above structure serves as a base structure connected to the earthing switch operating handle and connected to the earthing switch.

The second supporting member 6 has a first assembly base surface 61, the transmission connecting member 5 has a second assembly base surface 51, the first assembly base surface 61 and the second assembly base surface 51 are flat surfaces, a locking unit 7 which can swing under the action of the movement of the transmission connecting member 5 is arranged between the first assembly base surface 61 and the second assembly base surface 51, the swing of the locking unit 7 is firstly based on the driving force generated by the movement of the transmission connecting member 5, and the distance between the first assembly base surface 61 and the second assembly base surface 51 is just the thickness of the locking unit 7, so that the first assembly base surface 61 and the second assembly base surface 51 can contact with the corresponding surfaces of the locking unit 7, and friction force is generated when the first assembly base surface and the second assembly base surface 51 are contacted with the corresponding surfaces of the locking unit 7, and although the second supporting member 6, the transmission connecting member 5 and the locking unit 7 are all made of metal pieces, the surface roughness of each surface is large, so that the friction force generated by the contact is relatively small, the swing guarantee timeliness and the slip guarantee can not be influenced, and the locking unit 7 can be quickly connected with a locked part when the locked and unlocked when the locked part is unlocked.

The second supporting member 6 is provided with a third assembly base surface 62, the third assembly base surface 62 is a plane, a connecting node 62-a is arranged on the third assembly base surface 62, a preset shape and tensile elastic dragging unit 8 are arranged on the connecting node 62-a, namely, the connecting node 62-a is utilized to complete the assembly with the elastic dragging unit 8 and ensure that one end of the elastic dragging unit 8 is limited in the connecting node 62-a; the transmission connecting piece 5 is provided with a fourth assembly base surface 52, the fourth assembly base surface 52 is a plane, the fourth assembly base surface 52 is provided with a connecting unit 52-a which allows the elastic traction unit 8 to rebound to a preset shape when the locking unit 7 is unlocked and guides the transmission connecting piece 5 to move to an initial position in a state that the locking unit 7 is completely unlocked, the connecting unit 52-a is a component which is formed on the fourth assembly base surface 52 and has a structural shape, can be integrally formed on the fourth assembly base surface 52, can be fixedly connected to the fourth assembly base surface 52 through welding or fasteners, provides a connecting part for the other end of the elastic traction unit 8, and the distance between the connecting node 62-a and the connecting unit 52-a is matched with the length of the elastic traction unit 8 in the preset shape, so that the elastic traction unit 8 can be stretched and deformed at the first time when moving along with the transmission connecting piece 5 in a brake opening stage, and the transmission connecting piece 5 can be rapidly restored to the initial position in the unlocking state of the elastic traction unit 7 through the resilience force generated in the elastic traction unit 8 after the locking unit 7 is unlocked in the brake opening stage. In one embodiment, the elastic traction element 8 may be a spring; in another embodiment, the elastic traction unit 8 may be a member, such as a hydraulic telescopic rod, which has elasticity and is capable of self-restoring after being released.

Therefore, when the grounding switch is applied to an actual use scene, before the middle-voltage switch cabinet is installed and debugged in preparation for power transmission, the rear door of the middle-voltage switch cabinet is in an open state, and the grounding switch is in a closed state, as shown in fig. 2, an operation preventing groove is formed in a swinging arm 3 of the grounding switch, the operation preventing groove is matched with an operation preventing key of a swinging arm locking piece 4 to cause that the operation handle connecting piece 1 cannot rotate, at the moment, the elastic pulling unit 8 has no tensile expression, if the elastic pulling unit 8 changes from the tensile expression to the non-tensile expression, the resilience of the elastic pulling unit 8 can pull the transmission connecting piece 5 to move, namely, the swinging arm locking piece 4 moves, so that the operation preventing key on the swinging arm locking piece 4 is separated from the first supporting piece 2, and the end of the swinging arm locking piece 4 originally placed in the first supporting piece 2 is 16 mm away from the outer surface of the first supporting piece 2 after being separated, so as to achieve the function that the grounding switch cannot be operated in the rear door open state; as shown in fig. 3, in order to close the rear door of the medium voltage switchgear before power transmission, only the through hole for the locking unit 7 to pass through is arranged on the rear door, so that the rear door is forced to move against the transmission connecting piece 5 in the process of closing the door, that is, the swing arm locking piece 4 moves, so that the operation preventing key of the swing arm locking piece 4 is separated from the operation preventing groove and enters the first supporting piece 2, thereby the constraint that the operating handle connecting piece 1 cannot rotate is removed, the operating handle connecting piece 1 can rotate, the opening operation of the grounding switch can be realized, and meanwhile, the locking unit 7 is locked with the locked part after passing through the through hole.

Referring to fig. 1, the second supporting member 6 is a thin plate member with a thickness, the second supporting member 6 is bent twice to form three parts, one part is used for later installation, the second part is perpendicular to the moving direction of the transmission connecting member 5 and is used for arranging a third assembly base surface 62, the third part is parallel to the moving direction of the transmission connecting member 5 and is used for arranging a first assembly base surface 61, the second supporting member 6 can increase the bending degree of the bending part through compression, and the second supporting member has a plurality of functional positions, so that the second supporting member can be installed in a medium voltage switchgear, can be arranged in parallel with the transmission connecting member 5 to form a locking unit 7 together with the transmission connecting member 5, can provide a connecting position for the elastic pulling unit 8, and has a thickness which can only be bent through processing equipment, and can generate good recovery resistance after bending, so that the part of the elastic pulling unit 8 can not be recovered to a state before bending due to acting force generated by stretching when the elastic pulling is expressed.

Referring to fig. 4, the swing arm lock 4 has a fifth assembly base 41, the fifth assembly base 41 is a plane, the fifth assembly base 41 is provided with at least two positioning units 41-a, the positioning units 41-a are structural components formed on the fifth assembly base 41, and are fixedly connected to the fifth assembly base 41 through fasteners; the transmission connecting piece 5 is provided with a first assembling surface 53 opposite to the fourth assembling base surface 52, the first assembling surface 53 is also a plane, and the fifth assembling base surface 41 and the first assembling surface 53 are always in mutual contact in the assembling and connecting process and after the swing arm locking piece 4 and the transmission connecting piece 5 are assembled and connected; the first assembling and combining surface 53 is provided with a plurality of positioning nodes 53-a, the positioning nodes 53-a define the final installation position of the transmission connecting piece 5 on the swing arm locking piece 4, namely the position of the positioning unit 41-a on the first assembling and combining surface 53 is defined at the positioning nodes 53-a after the assembly is finished; the positioning units 41-a enter along the assembling direction, the assembling direction is a linear direction, so the difficulty of the positioning units 41-a entering the positioning nodes 53-a is reduced, and the arrangement of at least two positioning units 41-a is adopted, so that the extrusion pressure degree of the fifth assembling base surface 41 and the first assembling combination surface 53 can be ensured when in contact, and the constraint force of deflection of the transmission connecting piece 5 can be prevented when in movement; the number of the positioning nodes 53-a is larger than that of the positioning units 41-a, so that the arrangement position of the transmission connecting piece 5 can be adjusted according to the cabinet body volume of the medium-voltage switch cabinet, namely, the distance between the end of the transmission connecting piece 5 close to the rear door and the end of the swing arm locking piece 4 close to the rear can be adjusted.

Referring to fig. 5, the third assembly base surface 62 is provided with a guide channel 62-b for the transmission connecting piece 5 to pass through and providing at least four direction constraints, and the guide channel 62-b is used for the transmission connecting piece 5 to pass through, so that the space provided by the guide channel 62-b can be used as a constraint space, the stability of the transmission connecting piece 5 during moving is met, and no over obvious deflection occurs; the transmission connecting piece 5 is composed of a left part, a middle part and a right part, namely the left part is used for arranging a second assembly base surface 51, the right part is used for arranging a fourth assembly base surface 52, the middle part is a dislocation part 54 which enables the left part and the right part to be distributed in a front and back dislocation way, the dislocation enables a connecting node 62-a to be adjacent to a guide channel 62-b and is positioned at the front end of the connecting node and not positioned at the same level with a connecting unit 52-a, so that two ends of an elastic dragging unit 8 which is respectively arranged at the connecting node 62-a and the connecting unit 52-a can also be distributed in a front and back dislocation way, as well known, the oblique distance is larger than the linear distance, and the two ends of the elastic dragging unit 8 generate a tension force which always keeps a tight state due to the increase of the distance after the two ends of the elastic dragging unit 8 are arranged; the joint of the dislocation part 54 and the left part is provided with a bend formed by dislocation, the bend enables the second assembly base surface 51, the dislocation part 54 and the side surface of the second assembly base surface 51 on the same side not to be arranged on the same level, so that the transmission connecting piece 5 cannot move continuously due to the dislocation arrangement when the bend enters the guide channel 62-b, the stop effect is achieved, the bend part is used as a stop structure 54-a, the bend part is also provided with an arc transition, the stop structure 54-a can be quickly guided to enter, and the locking unit 7 can be ensured to completely display a state of complete unlocking after unlocking.

Referring to fig. 6, the locking unit 7 includes a connecting body 71 and an extending body 72 extending from the connecting body 71 and having an included angle of more than 90 ° with the connecting body 71, and the locking unit 7 is a thick and nonstandard L-shaped structure as a whole; the connecting body 71 is provided with a second assembling surface 71-a and a third assembling surface 71-b which are respectively contacted with the first assembling base surface 61 and the second assembling base surface 51, the second assembling surface 71-a and the third assembling surface 71-b are all flat surfaces, so that contact gaps are not generated when the connecting body is contacted with the first assembling base surface 61 and the second assembling base surface 51, contact tightness is ensured, and friction force can be ensured; because the locking unit 7 can swing under the traction of the transmission connecting piece 5, the locking unit can not be fixedly connected with the transmission connecting piece 5 and the second supporting piece 6, a shaft piece 91 serving as a guide medium for the rotation of the connecting piece 71 is arranged in the insertion joint 9, the shaft piece 91 can enter in a linear insertion mode, the shape of the shaft piece is consistent with the shape of the insertion joint 9 and is round, and the swinging of the connecting piece 71 can be realized; the extension 72 is provided with a locking node 72-a and a guide passage 72-b for guiding the member to be locked to the locking node 72-a in the locking direction, the locking node 72-a is independently formed on the extension 72, the locking node 72-a is used for limiting the final position of the member to be locked on the extension 72, and the member to be locked can be smoothly slid from the guide passage 72-b into the locking member 72-a.

Meanwhile, the included angle larger than 90 ° is set because the swinging part of the locking unit 7 is on the connecting body 71, and the included angle between the connecting body 71 and the moving direction of the transmission connecting piece 5 is substantially 45 ° when the connecting body 71 is in the initial state, but the changed angle between the connecting body 71 and the extension body 72 when the transmission connecting piece 5 moves to the specified position is substantially 60 °, if the included angle between the connecting body 71 and the extension body 72 is smaller than or equal to 90 °, the extension body 72 cannot be in the parallel state with the transmission connecting piece 5 after swinging, and the locked component only partially exists on the locking joint 72-a, so that the locking stability is poor.

The shaft 91 is provided with a fixed part 91-a at one end close to the first assembly base surface 61 or far from the second assembly base surface 51 for preventing the shaft 91 from moving to the entering direction and being held when entering the insertion joint 9, and a movable part 91-b at one end far from the first assembly base surface 61 or close to the second assembly base surface 52 for preventing the shaft 91 from moving to the entering direction and being held when entering the insertion joint 9, and allowing the movable part 91-b to rotate along the axial direction of the shaft 91 and move when rotating, and the arrangement is mainly to ensure the stability of the shaft 91 existing in the insertion joint 9, namely, the shaft 91 cannot be separated from the insertion joint 9 under the influence of the swinging stress of the locking unit 7, thereby achieving the continuous guiding effect, and also ensuring the stable matching of the locking unit 7 with the transmission connecting piece 5 and the second supporting piece 6, and the whole structure is simple, namely, a spiral surface is arranged at one end of the shaft 91 provided with the movable part 91-b, and the movable part 91-b is a nut, so that the spiral matching can be realized, the contact surface of the movable part 91-b is abutted with the pressure surface, and the contact degree of the movable part is extruded.

Referring to fig. 7, a limiting structure 10 is provided on the shaft member 91 between the second assembly mating surface 71-a and the third assembly base surface 71-b, the limiting structure 10 limits the swing range of the connecting body 71 when the locking unit 7 is locked with the locked member in the opening state so that the extending body 72 and the transmission connecting member 5 are in a parallel state to exhibit a state where the locked member is completely present in the locking node 72-a on the extending body 72 to prevent the locking unit 7. In one embodiment, the limiting structure 10 is a spacer having a through hole, the through hole forms a space for the shaft 91 to pass through, and the spacer itself uses the area of the spacer itself as a stop structure for the transmission connecting member 5 during the opening movement stage by using the arrangement that the outer diameter of the spacer itself is larger than that of the through hole, thereby preventing the transmission connecting member 5 from moving excessively.

The locking node 72-a includes a semi-surrounding wall 72-a1 formed on the extension 72, and a transition space 72-a11 defined in the semi-surrounding wall 72-a1 and allowing the locked member to be quickly moved into/out of the locking node 72-a after the locking unit 7 is moved by the driving link 5 actively at the time of closing/opening; the half wall 72-a1 is provided with a side stopper structure 72-b1 for extending the passage length of the guide passage 72-b in the extension 72 to come into contact with the member to be locked first in the assembling direction and generating a position for preventing the member to be locked from deviating from the position of the locking node 72-a, and when the member to be locked reaches the transition space 72-a11 of the locking node 72-a, the half wall 72-a1 serves as a stopper against the member to be locked and comes into abutment against the member to be locked at least in the direction opposite to the locking direction to prevent the member to be locked from returning along the original path, thereby completing the locked state of the locking unit and the member to be locked in the final position, while in the process of generating the locked state, the side stopper structure 72-b1 comes into contact with the member to be locked first, and the side stopper structure 72-b1 is integrally formed with the extension 72, whereby the accuracy of the falling point of the locking node 72-a can be increased, that is achieved by using the side stopper structure 72-b1 to come into contact with the member to come into contact with the planar surface during the swinging of the locking unit 7, thereby extending the passage length of the guide passage 72-b. In one embodiment, the locking node 72-a is embodied as a through-groove penetrating the extension 72, the wall of the through-groove forming a semi-circumferential wall 72-a1, the through-groove allowing a space into which the member to be locked enters to form a transition space 72-a11, and the transition space 72-a11 being a portion where the through-groove extends while matching the area of the member to be locked, thereby improving the ejection efficiency.

The semi-surrounding wall 72-a1 is formed with an abutting wall 72-a12 which completely abuts on a surface of a part of the to-be-locked member when the to-be-locked member reaches the locking node 72-a, so that the to-be-locked member is accurately positioned at the locking node 72-a to match the accuracy of the to-be-locked member entering the guide passage 72-b.

Example 2

Referring to fig. 8-12, a process applied to the interlocking mechanism of the medium voltage switch cabinet according to claims 1-9, which includes a fixing frame 20, a transmission device 30 is installed on the bottom inner wall of the fixing frame 20, processing devices 40 fixed on the bottom inner wall of the fixing frame 20 are respectively disposed on both sides of the transmission device 30, symmetrically disposed positioning rods 201 are fixed between the top inner wall and the bottom inner wall of the fixing frame 20, a recovery device 50 is movably disposed on the positioning rods 201, a punching device 60 is installed on the top inner wall of the fixing frame 20, reinforcing devices 70 symmetrically disposed on both sides of the punching device 60 are fixed on the punching device 60, symmetrically disposed liquid guiding devices 80 are installed on the top inner wall of the fixing frame 20, each liquid guiding device 80 is equipped with a liquid tank 90 disposed on the top outer wall of the fixing frame 20, a circulating filter device 100 is disposed between the two liquid tanks 90 and further used in cooperation with the processing devices 40, and the process includes the following specific steps:

s1, transmission: the transmission connection 5 or the second support 6 to be perforated is conveyed by the conveying means 30 under the perforating device 60;

s2, punching: after the transmission connecting piece 5 or the second supporting piece 6 to be processed is in place, the punching device 60 is started at the moment, so that the drill bit reaches a punching hole position on the transmission connecting piece 5 or the second supporting piece 6, meanwhile, in order to ensure the stability and avoid the complexity of manual clamping, and when the drill bit is about to punch the hole position in place, the reinforcing device 70 firstly clamps and fixes the transmission connecting piece 5 or the second supporting piece 6, so that the punching stability in the punching stage and the quality of a formed hole are ensured, and the liquid guide device 80 is started to cool the drill bit in the punching process;

s3, cleaning: after the punching is finished, the processing device 40 is started, and scraps generated by punching are mixed with cooling liquid for cleaning, so that the cleanliness of a table top on which the transmission connecting piece 5 or the second supporting piece 6 is placed is ensured, namely the stable placement of the transmission connecting piece 5 or the second supporting piece 6 is ensured;

s4, recycling: the coolant with the chips after cleaning is recovered by the circulation filter device 100, and the chips attached to the coolant are filtered after recovery to redistribute the substantially pure coolant to the two-tank 90 as a reusable coolant.

The circulation filter device 100 according to the above step S4 includes:

the three-way valve 101 is connected with the two liquid tanks 90 through connecting pipelines, one liquid tank 90 is used for storing cooling liquid with high cleanliness, and the other liquid tank 90 is used for storing used cooling liquid containing chips; and

a pressurizing unit 102 connected with the three-way valve 101 through a connecting pipeline to enable the cooling liquid to enter, and rapidly conveying the cooling liquid to the liquid guiding device 80 through the connecting pipeline after pressurizing, wherein the pressurizing unit 102 comprises a first shell 102-a, a first power chamber 102-b arranged in the first shell 102-a, a first movable plug 102-c which moves along the length direction of the first power chamber 102-b and generates negative pressure, the first power chamber 102-b is internally provided with a first flow passage 102-b1 which is communicated with the first power chamber 102-b and is positioned above the first power chamber 102-b, a second flow passage 102-b2 positioned below the first power chamber 102-b, and a third flow passage 102-b3 positioned at the right side of the first power chamber 102-b in the first shell 102-a, the first flow passage 102-b1 is provided with a first liquid inlet port 102-b11 connected to the three-way valve 101 through a connecting pipe in the first housing 102-a, a first liquid outlet port 102-b12 for guiding the liquid into the first power chamber 102-b, the second flow passage 102-b2 is provided with a first chip inlet port 102-b21 for guiding the chips to be filtered into the second flow passage 102-b2 in the first housing 102-a, a first chip outlet port 102-b22 for guiding the chips to the outside from the second flow passage 102-b2, the third flow passage 102-b3 is provided with a third liquid inlet port 102-b31 for guiding the cooling liquid without use marks from the first power chamber 102-b into the third flow passage 102-b3, a third liquid outlet port 102-b32 for guiding the cooling liquid from the third flow passage 102-b3 to the outside in the first housing 102-a, and a third flow passage 102-b1 and a second flow passage 102-b2 are provided therebetween, and the first flow passage 102-b1 and the second flow passage 102-b2 are provided with a first liquid inlet port 102-b11 for guiding the cooling liquid to the chips to be present in the power chamber 102-b for filtering the chips A cylindrical screen 102-d; and

a flow dividing unit 103 connected with the pressurizing unit 102 through a connecting pipeline to enable the cooling liquid to be output from the first liquid outlet 102-b2 or the second liquid outlet 102-b3 after entering the pressurizing unit 102, wherein the flow dividing unit 103 comprises a second housing 103-a, a second power chamber 103-b and a third power chamber 103-c which are arranged in the second housing 103 and distributed and communicated left and right, a second movable plug 103-d which moves along the length direction of the second power chamber 103-b and generates negative pressure is arranged in the second power chamber 103-b, a third movable plug 103-e which moves along the length direction of the third power chamber 103-b and generates negative pressure is arranged in the third power chamber, the second power chamber 103-b is provided with a fourth fluid inlet 103-b1 communicated with the second housing 103-a at the second housing 103-a, a fourth fluid outlet 103-b11 connected with the third fluid outlet 102-b32 through a connecting pipeline and a fourth fluid outlet 103-b12 for delivering the cleaning fluid to the fluid guiding device 80 through a connecting pipeline are provided at the second housing 103-a of the fourth fluid channel 103-b1, the third power chamber 103-c is provided with a second chip inlet 103-c1 connected with the first chip outlet 102-b22 through a connecting pipeline and a second chip outlet 103-c2 connected with a connecting pipeline between the three-way valve 101 and the cooling fluid for storing used chips and containing chips through a connecting pipeline and a two-way valve 103-d at the second housing 103-a; and

the driving unit 104 is used for driving the pressurizing unit 102 and the flow dividing unit 103 respectively, the driving unit 104 comprises a driving rotary disc 104-a, a driven rotary disc 104-b, a first unidirectional rotary disc 104-c, a second unidirectional rotary disc 104-d, a first driving rod 104-e and a second driving rod 104-f, the driving rotary disc 104-a provides power and is in meshing transmission fit with the driven rotary disc 104-b, the central positions of the driving rotary disc 104-a and the driven rotary disc 104-b are respectively provided with a containing cavity 104-g with consistent configuration, the inner circumferential surface of the containing cavity 104-g and the outer circumferential surface of the first unidirectional rotary disc 104-c or the second unidirectional rotary disc 104-d are provided with a reserved space d1, the containing cavity 104-g is provided with at least four deviation cavities 104-g1 which are distributed along the circumferential direction of the driving rotary disc 104-a or the driven rotary disc 104-b and deviate from the axial direction and the radial direction and are communicated with the containing cavity, the outer circumferential surfaces of the first unidirectional rotary disc 104-c and the second unidirectional rotary disc 104-d are provided with an eccentric stopping arm 104-h, the inner surface of the driving rotary disc 104-e and the second unidirectional rotary disc 104-b is provided with an adjustable stopping arm 104-h, the inner surface of the driving rotary disc 104-h and the second unidirectional rotary disc 104-b is provided with an eccentric stopping arm 104-h, and an eccentric stopping arm 104-h and an adjustable spacing d 1.

The principle of the circulating filter device is that when the pressurizing unit 102 is started, namely the first movable plug 102-c is started, the cooling liquid in the liquid tank 90 for storing the cooling liquid without using marks enters the first flow channel 102-b1 through the first liquid inlet 102-b11 via the three-way valve 101, and reaches the first power chamber 102-b from the first liquid outlet 102-b12, the cooling liquid existing in the first power chamber 102-b enters the third flow channel 102-b3 through the third liquid inlet 102-b31, and then is conveyed to the fourth liquid inlet 103-b11 and enters the fourth flow channel 103-b1 through the third liquid outlet 102-b32, the cooling liquid immediately enters the second power chamber 103-b and reaches the fourth liquid outlet 103-b12, the fourth liquid outlet 103-b12 conveys the cooling liquid to the liquid guiding device 80 through a connecting pipeline to realize cooling treatment on a drill bit being drilled, the cooling liquid after the cooling treatment contains chips and enters the treatment device 40, and at the moment, when the second movable plug 103-d is started, the cooling liquid containing the cooling liquid returns to the pressurizing liquid in the first power chamber 102-b, and then flows through the filtering unit 102-b; when the chips on the cylindrical filter screen 102-d reach a certain degree, the second movable plug 103-d drives the third movable plug 103-e to move together, so that the chips enter the second flow channel 102-b, are conveyed to the second chip inlet 103-c1 through the first chip outlet 102-b22, enter the third power chamber 103-c, and are conveyed to the collecting container through the second chip outlet 103-c2 to be collected together; and each connecting pipeline is provided with a one-way valve, so that the cooling liquid or the fragments can be prevented from flowing backwards, and the working efficiency is ensured;

the first moving plug 102-c is actuated by the driving turntable 104-a, the second moving plug 103-d and the third moving plug 103-e are actuated by the driven turntable 104-b, the principle is that the driven turntable 104-b rotates counterclockwise when the driving turntable 104-a rotates clockwise, similarly, the driven turntable 104-b rotates clockwise when the driving turntable 104-a rotates counterclockwise, and the driving force generated by the first driving rod 104-e or the second driving rod 104-f is realized by the driving turntable 104-a or the driven turntable 104-b rotating counterclockwise, specifically, the first unidirectional rotating disk 104-c and the second unidirectional rotating disk 104-d are installed to the accommodating cavity 104-g, the rotation is realized by the rotating shaft arranged at the center of the accommodating cavity 104-g, the stopping arm 104-h is arranged in the deviation cavity 104-g1, since the stopping arm 104-h is in contact with the outer peripheral surface of the first unidirectional rotating disk 104-c or the second unidirectional rotating disk 104-d, the stopping arm 104-h has an adjustable distance d3 from the outer surface of the first unidirectional rotating disk 104-c or the second unidirectional rotating disk 104-g, and the stopping arm 104-h can not contact with the inner surface of the first unidirectional rotating disk 104-g, and the stopping arm 104-h can not generate a distance reduced from 2-b, when the stopping arm 104-b rotates clockwise, therefore, the stop arm 104-h does not play a stop role, and only the first one-way rotating disc 104-c or the second one-way rotating disc 104-d can rotate, so that the most terminal point of the deviation cavity 104-g1 acts as a stop surface during counterclockwise rotation and is in stop contact with the stop arm 104-h, so that the first one-way rotating disc 104-c or the second one-way rotating disc 104-d rotates along with the driving turntable 104-a or the driven turntable 104-b, thereby driving the first driving rod 104-e or the second driving rod 104-f to swing, and meanwhile, according to a rotation mechanism defined by the matching of the driving turntable 104-a and the driven turntable 104-b, the first driving rod 104-e or the second driving rod 104-f can only drive one of the driving rods, namely, when the liquid tank 90 for storing the cooling liquid with high cleanliness is used, the driving turntable 104-a rotates counterclockwise and the first driving rod 104-e moves; when the backflowing and debris-containing coolant is filtered and reused, the driven turntable 104-b rotates counterclockwise and the second movable plug 103-d moves; when cleaning the chips on the cylindrical screen 102-d, the driven turntable 104-b rotates counterclockwise and the second moving plug 103-d moves into the third power chamber 103-c to drive the third moving plug 103-e to move together, thereby discharging the chips through the second chip outlet 103-c 2.

Through foretell technical mode, can realize the automatic liquid and the clastic effect of automatic filtration of sending of efficient, the convenience is showing and is promoting.

While the invention has been shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the appended claims.

Claims

1. A medium-voltage switch cabinet interlocking mechanism comprises an operating handle connecting piece (1) connected with an operating handle of an earthing switch, a first supporting piece (2) which is arranged on the operating handle connecting piece (1) and is suitable for the operating handle connecting piece (1) to rotate around the axis of the operating handle connecting piece, an earthing switch swing arm (3) which is arranged at the other end of the operating handle connecting piece (1) and is positioned on one side of the first supporting piece (2), an oscillating arm locking piece (4) which is arranged on the first supporting piece (2) and is suitable for being subjected to opening dislocation unlocking/closing overlapping locking with the earthing switch swing arm (3), a transmission connecting piece (5) which is arranged on the oscillating arm locking piece (4) and is suitable for acting along with locking/unlocking actions of the oscillating arm locking piece (4), and a second supporting piece (6) which is arranged on the transmission connecting piece (5) and is suitable for the transmission connecting piece (5) to move along the locking/unlocking directions;

the method is characterized in that: the second supporting piece (6) is provided with a first assembly base surface (61), the transmission connecting piece (5) is provided with a second assembly base surface (51), a locking unit (7) which can swing under the action of movement of the transmission connecting piece (5) is arranged between the first assembly base surface (61) and the second assembly base surface (51), and the locking unit (7) is locked/unlocked with a locked component during opening/closing;

the second support member (6) has a third assembly base surface (62), a connection node (62-a) is arranged on the third assembly base surface (62), an elastic pulling unit (8) which has a preset shape and is pulled and stretched is arranged on the connection node (62-a), the transmission connecting member (5) has a fourth assembly base surface (52), and a connection unit (52-a) which allows the elastic pulling unit (8) to rebound to the preset shape and guides the transmission connecting member (5) to move to an initial position of a state assumed when the locking unit (7) is completely unlocked is arranged on the fourth assembly base surface (52).

2. The medium voltage switchgear interlock mechanism according to claim 1, characterized in that: the second supporting piece (6) is a thin plate component with thickness, the second supporting piece (6) is bent twice to form three parts, one part is used for later installation, the second part is perpendicular to the moving direction of the transmission connecting piece (5) and used for arranging the third assembly base surface (62), and the third part is parallel to the moving direction of the transmission connecting piece (5) and used for arranging the first assembly base surface (61).

3. The medium voltage switchgear interlock mechanism according to claim 1, characterized in that: the swing arm lock piece (4) is provided with a fifth assembly base surface (41), and at least two positioning units (41-a) are arranged on the fifth assembly base surface (41); the transmission connector (5) is provided with a first assembly matching surface (53) which is opposite to the fourth assembly base surface (52) and is in contact with the fifth assembly base surface (41), and the first assembly matching surface (53) is provided with a plurality of positioning nodes (53-a) which define the final installation position of the transmission connector (5) on the swing arm lock (4); the positioning unit (41-a) is embedded into the corresponding positioning node (53-a) along the assembling direction, and can generate the extrusion degree of the fifth assembling base surface (41) and the first assembling matching surface (53) when in contact and the constraint force for preventing the transmission connecting piece (5) from swinging when moving; the number of positioning nodes (53-a) is greater than the number of positioning units (41-a).

4. The medium voltage switchgear interlock mechanism according to claim 1, characterized in that: the third assembly base surface (62) is provided with a guide channel (62-b) for the transmission connecting piece (5) to pass through and providing at least four direction constraints; the transmission connecting piece (5) is provided with a dislocation part (54) which is positioned between the part provided with the second assembly base surface (51) and the part provided with the fourth assembly base surface (52) and enables the two parts to be distributed in a front and back dislocation way, and the elastic dragging unit (8) can generate a tension force which enables the elastic dragging unit to be always kept in a tight state when being connected with the connecting joint (62-a) and the connecting unit (52-a) through the dislocation arrangement of the dislocation part (54); the connection of the dislocation part (54) and the part where the second assembly base surface (51) is provided is made as a stop structure (54-a), and the lock unit (7) completely exhibits a state exhibited by complete unlocking when the stop structure (54-a) is moved into the guide passage (62-b).

5. The medium voltage switchgear interlocking mechanism according to claim 1, characterized in that: the locking unit (7) comprises a connecting body (71) and an extending body (72) which extends out of the connecting body (71) and has an included angle of more than 90 degrees with the connecting body (71); the connecting body (71) is provided with a second assembly matching surface (71-a) which is respectively contacted with the first assembly base surface (61) and a third assembly matching surface (71-b) which is contacted with the second assembly base surface (51), and plug-in connection points (9) are arranged on the first assembly base surface (61), the second assembly base surface (51), the second assembly matching surface (71-a) and the third assembly matching surface (71-b); a shaft piece (91) serving as a guide medium for the rotation of the connecting body (71) is arranged in the plug-in joint (9); the extension body (72) is provided with a locking node (72-a) and a guide passage (72-b) for guiding the member to be locked to reach the locking node (72-a) through the locking direction.

6. The medium voltage switchgear interlock mechanism according to claim 5, wherein: the shaft piece (91) is provided with a fixed part (91-a) which prevents the shaft piece (91) from moving to the entering direction and being held when entering the insertion joint (9) at one end close to the first assembly base surface (61) or away from the second assembly base surface (51), a movable part (91-b) which prevents the shaft piece (91) from moving to the direction away from the entering direction and being held when entering the insertion joint (9) and allows the movable part (91-b) to rotate along the axial direction of the shaft piece (91) and move when rotating, at one end away from the first assembly base surface (61) or close to the second assembly base surface (52).

7. The medium voltage switchgear interlock mechanism according to claim 5, wherein: the second assembling combination surface (71-a) and the third assembling base surface (71-b) are provided with a limiting structure (10) arranged on the shaft element (91), the limiting structure (10) limits the swinging amplitude of the connecting body (71) when the locking unit (7) is locked with the locked part in the opening state, so that the extending body (72) and the transmission connecting piece (5) are in a parallel state, and the state that the locked part completely exists in the locking joint (72-a) is shown on the extending body (72).

8. The medium voltage switchgear interlock mechanism according to claim 5, wherein: the locking node (72-a) comprises a semi-surrounding wall (72-a 1) formed on the extension body (72), and a transition space (72-a 11) which is defined in the semi-surrounding wall (72-a 1) and allows the locking unit (7) to be quickly entered/removed from the locking node (72-a) by the locked component after the active movement action of the transmission connecting piece (5) during closing/opening of the locked component; the semi-surrounding wall (72-a 1) is provided with a side stop structure (72-b 1) which extends the passage length of the guide passage (72-b) to contact with the member to be locked first in the assembly direction and prevent the member to be locked from deviating from the position of the locking node (72-a) in the extension body (72).

9. The medium voltage switchgear interlock mechanism according to claim 8, wherein: the semi-surrounding wall (72-a 1) is formed with an abutting wall (72-a 12) which abuts completely on a surface of a part of the member to be locked when the member to be locked reaches the locking junction (72-a).

10. A process applied to the interlocking mechanism of the medium voltage switch cabinet as claimed in claims 1 to 9, wherein: including fixed frame (20), install conveyer (30) on the bottom inner wall of fixed frame (20), the both sides of conveyer (30) all are equipped with to be fixed processing apparatus (40) on fixed frame (20) bottom inner wall, be fixed with locating lever (201) that the symmetry set up between the top inner wall of fixed frame (20) and the bottom inner wall, the activity is equipped with reply device (50) on locating lever (201), install perforating device (60) on the top inner wall of fixed frame (20), be fixed with reinforcing apparatus (70) that are located its bilateral symmetry distribution on perforating device (60), drain device (80) that the symmetry set up are installed to the top inner wall of fixed frame (20), every drain device (80) are equipped with the setting and are in liquid case (90) of the top outer wall of fixed frame (20), two be provided with between liquid case (90) still with circulating filter equipment (100) that processing apparatus (40) cooperation was used, concrete step is as follows:

s1, transmission: conveying the transmission connecting piece (5) or the second supporting piece (6) to be punched below the punching device (60) through a conveying device (30);

s2, punching: after the transmission connecting piece (5) or the second supporting piece (6) needing to be processed is in place, the punching device (60) is started at the moment, so that the drill bit reaches a punching position on the transmission connecting piece (5) or the second supporting piece (6), meanwhile, in order to ensure the stability and avoid the complexity of manual clamping, when the drill bit is about to be in place and punch the hole, the reinforcing device (70) firstly clamps and fixes the transmission connecting piece (5) or the second supporting piece (6), the punching stability in the punching stage and the quality of a formed hole are ensured, and the liquid guide device (80) is started to carry out cooling treatment on the drill bit in the punching process;

s3, cleaning: after the punching is finished, the processing device (40) is started, and scraps (fused with cooling liquid) generated by punching are cleaned, so that the cleanliness of a table top on which the transmission connecting piece (5) or the second supporting piece (6) is placed is ensured, namely the stable placement of the transmission connecting piece (5) or the second supporting piece (6) is ensured;

s4, recycling: the cooling liquid with the scraps after being cleaned is recovered through the circulating filter device (100), the scraps attached to the cooling liquid are filtered after being recovered, and then the basically pure cooling liquid is distributed into the two liquid tanks (90) again to be used as the reusable cooling liquid.