CN112271572A

CN112271572A - In put cabinet body

Info

Publication number: CN112271572A
Application number: CN202011278980.3A
Authority: CN
Inventors: 胡家林
Original assignee: Chongqing New Goldman Sachs Electric Co ltd
Current assignee: Chongqing New Goldman Sachs Electric Co ltd
Priority date: 2020-11-16
Filing date: 2020-11-16
Publication date: 2021-01-26

Abstract

The invention discloses a middle-placed cabinet body, relates to the technical field of middle-placed cabinets, and solves the problems that the existing middle-placed cabinet body needs to be carried by manpower in the using process, time and labor are wasted, and electric elements in the device are easily damaged by vibration generated in the carrying process. The utility model provides an in put cabinet body, includes cabinet body, and the mounting box has been cup jointed to the bottom of cabinet body, and the removal base is installed to the below of mounting box, removes under the base four equal fixed mounting of extreme angle department of terminal surface have the pulley, and one side of every pulley is all installed and is located the inside arrestment mechanism of removal base, and stop gear is all installed to four extreme angle departments of mounting box inside, and four extreme angle departments of terminal surface have first flexible post under the mounting box all fixed mounting, and No. two springs have been cup jointed in the outside of first flexible post. The invention has simple structure, convenient use, convenient movement of the device, braking function, labor saving, shock absorption function and convenient installation and disassembly.

Description

In put cabinet body

Technical Field

The invention relates to the technical field of centrally installed switchgear, in particular to a centrally installed switchgear body.

Background

With the rapid development of social economy, the built-in cabinets are increasingly applied to living buildings, the built-in cabinets are all called metal armored built-in withdrawable switchgear, belong to high-voltage power distribution devices, are indoor complete power distribution devices of a three-phase alternating-current 50Hz single-bus segmented system or a double-bus segmented system, are used for receiving and distributing 3.6-12kV network electric energy and carrying out control protection, monitoring and measurement on power circuits, and the built-in cabinets are mainly used for power plants, power transmission of small and medium-sized generators, power receiving and power transmission of secondary substations of the power systems, power distribution of industrial and mining enterprises and public institutions, starting of large high-voltage motors and the like.

However, the existing centrally installed switchgear cabinet body needs to be carried by manpower in the using process, time and labor are wasted, and the electric elements in the centrally installed switchgear cabinet body are easily damaged by vibration generated in the carrying process; therefore, the existing requirements are not met, and a centrally-mounted cabinet body is provided.

Disclosure of Invention

The invention aims to provide a centrally installed switchgear cabinet body, which solves the problems that the conventional centrally installed switchgear cabinet body in the background art needs to be transported by manpower in the using process, wastes time and labor, and easily damages electrical components in the device due to vibration generated in the transporting process.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an in put cabinet body, includes cabinet body, the mounting box has been cup jointed to the bottom of cabinet body, the removal base is installed to the below of mounting box, remove under the base equal fixed mounting of four end angle departments of terminal surface have the pulley, every the one side of pulley is all installed and is located the inside arrestment mechanism of removal base, stop gear is all installed to four inside end angle departments of mounting box, four equal fixed mounting of end angle departments of terminal surface have first flexible post under the mounting box, No. two springs have been cup jointed in the outside of first flexible post, four the internally mounted of first flexible post has damper.

Preferably, the brake mechanism includes electric putter, electric putter's bottom fixed mounting has the rack, the bracing piece No. one is installed to one side of rack, the bottom swing joint of bracing piece has the gear, one side fixed mounting of bracing piece has the bracing piece No. two that is located the removal base inside, the preceding terminal surface swing joint of gear has the connecting rod No. one, the one end swing joint of connecting rod has L type brake lever.

Preferably, electric putter and removal base are integrated structure, electric putter passes through screwed connection with the removal base, electric putter passes through screwed connection with the rack, rack and gear engagement, a bracing piece passes through the minor axis with the gear and is connected, a bracing piece passes through screwed connection with the removal base.

Preferably, a connecting rod is connected with the gear through a rotating shaft, the connecting rod is connected with the L-shaped brake rod through a rotating shaft, the L-shaped brake rod is connected with the second support rod through a rotating shaft, a rubber anti-skid base plate is fixedly mounted on one side of the L-shaped brake rod, and anti-skid particles are arranged on the outer surface of the rubber anti-skid base plate.

Preferably, stop gear includes the threaded rod, the locating piece that is located the mounting box inside is installed in the outside of threaded rod, trapezoidal movable block is installed to the bottom of threaded rod, one side fixed mounting of trapezoidal movable block has first slider, first slider's the outside is provided with first spout, the inserted bar is installed to the opposite side of trapezoidal movable block, the slide is installed in the outside of inserted bar, the fixed block that is located the inserted bar outside is installed to one side of slide, the opposite side fixed mounting of fixed block has a spring, the one end swing joint of inserted bar has the gyro wheel.

Preferably, the positioning block and the threaded rod are of an integrated structure, a threaded groove is formed in the positioning block, the positioning block is in threaded connection with the threaded rod, and the threaded rod is connected with the trapezoidal moving block through a roller bearing.

Preferably, the slide passes through bolted connection with the mounting box, sliding construction is constituteed with the slide to the inserted bar, the one end and the slide of a spring pass through bolted connection, the other end and the fixed block of a spring pass through bolted connection, the fixed block passes through bolted connection with the inserted bar.

Preferably, the outside of inserted bar other end is provided with the slot, and the inside of slot is equipped with the sealing strip, and the sealing strip passes through the grafting glue with the slot and is connected.

Preferably, damper includes an ear seat, the lower extreme swing joint of an ear seat has the connecting rod No. two, the bottom swing joint of No. two connecting rods has the ear seat No. two, one of them one side fixed mounting of No. two ear seats has a cover post, the inside sliding connection of cover post has the removal post, every the equal fixed mounting of opposite side of No. two ear seats has the flexible post of second, the outside fixed mounting of the flexible post of second has No. three springs, the one end fixed mounting of the flexible post of second has the fixed plate that is located the removal base up end, the bottom fixed mounting of No. two ear seats has second slider, second slider's the outside is provided with second spout.

Preferably, an ear seat passes through bolted connection with the mounting box, an ear seat is connected through a locating shaft with No. two connecting rods, No. two connecting rods and No. two ear seats pass through No. two locating shafts and are connected, another one side of No. two ear seats passes through bolted connection with the removal post, second slider passes through bolted connection with No. two ear seats, second slider card is gone into to the inside of second spout.

Compared with the prior art, the invention has the beneficial effects that:

1. the device is moved under the action of the pulley, so that labor is saved, the gear is driven to rotate through the movement of the rack, and the first connecting rod is driven to rotate, so that the L-shaped brake rod rotates, the pulley is conveniently braked through the matching of the L-shaped brake rod and the pulley, and the device is prevented from displacing when not required to move;

2. according to the invention, a part of vibration force is absorbed through the matching of the first telescopic column and the second spring, the first connecting rod is rotated by downward movement of the first ear seat through the matching of the first ear seat and the second ear seat, the second connecting rod is convenient to limit the movement of the second ear seat by sliding the movable column in the sleeve column, most of vibration force is absorbed through the matching of the second telescopic column and the third spring, so that the device has a damping function, and the electronic element in the device is prevented from being damaged by vibration generated in the moving process;

3. according to the invention, the threaded rod generates displacement in the rotating process under the action of the threads, the movement of the threaded rod drives the first sliding block to move, the movement of the first sliding block can limit the movement of the inserted link, the movement of the inserted link can be limited under the action of the first spring and the fixed block, and the installation and the disassembly of the installation box are facilitated through the matching of the inserted link and the slot, so that the utilization rate of the device is improved, and the storage space required by the device is saved.

Drawings

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

FIG. 2 is a schematic view of a partially cut-away structure of the cabinet body of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention;

FIG. 4 is an enlarged view of the structure at B in FIG. 2 according to the present invention;

FIG. 5 is an enlarged view of the structure of FIG. 2 at C according to the present invention;

FIG. 6 is an enlarged view of the structure shown in FIG. 2.

In the figure: 1. a cabinet body; 2. mounting a box; 3. moving the base; 4. a pulley; 5. a brake mechanism; 501. an electric push rod; 502. a rack; 503. a first support rod; 504. a gear; 505. a second support rod; 506. a first connecting rod; 507. an L-shaped brake lever; 6. a limiting mechanism; 601. a threaded rod; 602. positioning blocks; 603. a trapezoidal moving block; 604. a first sliding block; 605. a first chute; 606. inserting a rod; 607. a slideway; 608. a fixed block; 609. a first spring; 610. a roller; 7. a first telescopic column; 8. a second spring; 9. a damping mechanism; 901. a first ear mount; 902. a second connecting rod; 903. a second ear mount; 904. sleeving a column; 905. moving the column; 906. b, telescopic columns; 907. a third spring; 908. a fixing plate; 909. a second sliding block; 910. and a second sliding groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 to 6, an embodiment of the present invention includes: a centrally-mounted cabinet body comprises a cabinet body 1, a mounting box 2, a movable base 3, pulleys 4, a braking mechanism 5, an electric push rod 501, a rack 502, a first support rod 503, a gear 504, a second support rod 505, a first connecting rod 506, an L-shaped brake rod 507, a limiting mechanism 6, a threaded rod 601, a positioning block 602, a trapezoidal moving block 603, an A sliding block 604, an A sliding groove 605, an insert rod 606, a sliding rail 607, a fixing block 608, a first spring 609, a roller 610, an A telescopic column 7, a second spring 8, a damping mechanism 9, a first lug seat 901, a second connecting rod 902, a second lug seat 903, a sleeve column 904, a movable column 905, a second telescopic column 906, a third spring 907, a fixing plate 908, a second sliding block 909 and a second sliding groove 910, wherein the mounting box 2 is sleeved at the bottom end of the cabinet body 1, the movable base 3 is mounted below the mounting box 2, the pulleys 4 are fixedly mounted at four corners of the lower end face of the, one side of every pulley 4 all installs and is located 3 inside arrestment mechanism 5 of removal base, stop gear 6 is all installed to four inside end angle departments of mounting box 2, the installation and the dismantlement of mounting box 2 of being convenient for, the device's utilization ratio has been improved, the equal fixed mounting of four end angle departments of mounting box 2 lower terminal surface has first flexible post 7, No. two spring 8 have been cup jointed in first flexible post 7's the outside, four first flexible post 7's internally mounted has damper 9, the vibrations of avoiding removing the in-process production make the device inside electronic component damage.

Further, the brake mechanism 5 includes electric putter 501, the bottom fixed mounting of electric putter 501 has rack 502, bracing piece 503 is installed No. one to one side of rack 502, the bottom swing joint of bracing piece 503 has gear 504, one side fixed mounting of bracing piece 503 has the bracing piece 505 No. two that is located mobile base 3 inside, the preceding terminal surface swing joint of gear 504 has connecting rod 506 No. one, the one end swing joint of connecting rod 506 has L type brake lever 507, the removal through rack 502 has driven the rotation of gear 504, and then has driven the rotation of connecting rod 506 and L type brake lever 507.

Further, the electric push rod 501 and the movable base 3 are of an integrated structure, the electric push rod 501 is connected with the movable base 3 through screws, the electric push rod 501 is connected with the rack 502 through screws, the rack 502 is meshed with the gear 504, the first support rod 503 is connected with the gear 504 through a short shaft, the first support rod 503 is connected with the movable base 3 through screws, the gear 504 can be driven to rotate through movement of the rack 502, and the gear 504 can be supported through the effect of the first support rod 503.

Further, a connecting rod 506 is connected with the gear 504 through a rotating shaft, a connecting rod 506 is connected with the L-shaped brake rod 507 through a rotating shaft, the L-shaped brake rod 507 is connected with the second support rod 505 through a rotating shaft, a rubber anti-slip pad is fixedly mounted on one side of the L-shaped brake rod 507, anti-slip particles are arranged on the outer surface of the rubber anti-slip pad, the rotation of the gear 504 can drive the rotation of the connecting rod 506, the rotation of the L-shaped brake rod 507 is further driven, and the braking effect on the pulley 4 can be achieved through the effect of the L-shaped brake rod 507 and the rubber anti-slip pad.

Further, stop gear 6 includes threaded rod 601, the locating piece 602 that is located the inside of mounting box 2 is installed in the outside of threaded rod 601, trapezoidal movable block 603 is installed to the bottom of threaded rod 601, one side fixed mounting of trapezoidal movable block 603 has first slider 604, the outside of first slider 604 is provided with first spout 605, inserted bar 606 is installed to the opposite side of trapezoidal movable block 603, slide 607 is installed in the outside of inserted bar 606, fixed block 608 that is located the inserted bar 606 outside is installed to one side of slide 607, the opposite side fixed mounting of fixed block 608 has a spring 609, the one end swing joint of inserted bar 606 has gyro wheel 610, the removal of trapezoidal movable block 603 has been driven through the rotation of threaded rod 601, and then the inserted bar 606 has been driven and has moved to one side.

Further, the positioning block 602 and the threaded rod 601 are of an integrated structure, a threaded groove is formed in the positioning block 602, the positioning block 602 is connected with the threaded rod 601 through threads, the threaded rod 601 is connected with the trapezoidal moving block 603 through a roller bearing, and the threaded rod 601 can generate displacement in the rotating process through the action of the threads.

Further, the slide rail 607 is connected with the mounting box 2 through screws, the insertion rod 606 and the slide rail 607 form a sliding structure, one end of a first spring 609 is connected with the slide rail 607 through screws, the other end of the first spring 609 is connected with a fixed block 608 through screws, the fixed block 608 is connected with the insertion rod 606 through screws, and the movement of the fixed block 608 is controlled under the action of the first spring 609, so that the insertion rod 606 is controlled to move in the slide rail 607.

Further, the outside of the other end of the inserted link 606 is provided with a slot, and the inside of the slot is provided with a sealing strip, and the sealing strip is connected with the slot through the graft glue, and the sealing performance of the device connection is improved through the matching of the sealing strip and the slot.

Further, the shock-absorbing mechanism 9 includes a first ear seat 901, the lower end of the first ear seat 901 is movably connected with a second connecting rod 902, the bottom end of the second connecting rod 902 is movably connected with a second ear seat 903, one side of one second ear seat 903 is fixedly provided with a sleeve column 904, the inner part of the sleeve column 904 is slidably connected with a movable column 905, the other side of each second ear seat 903 is fixedly provided with a second telescopic column 906, the outer side of the second telescopic column 906 is fixedly provided with a third spring 907, one end of the second telescopic column 906 is fixedly provided with a fixing plate 908 located on the upper end surface of the movable base 3, the bottom end of the second ear seat 903 is fixedly provided with a second sliding block 909, the outer side of the second sliding block 909 is provided with a second sliding groove 910, most of vibration force is absorbed through the actions of the second connecting rod 902, the second telescopic column 906 and the third spring 907, so that.

Further, a first ear seat 901 passes through bolted connection with the mounting box 2, a first ear seat 901 is connected through a locating shaft with No. two connecting rods 902, No. two connecting rods 902 are connected through a locating shaft with No. two ear seats 903, one side of another No. two ear seats 903 passes through bolted connection with removal post 905, No. two slider 909 passes through bolted connection with No. two ear seats 903, second slider 909 blocks into the inside to second spout 910, through the cooperation of second slider 909 and second spout 910, be convenient for the removal of No. two ear seats 903, through the cooperation of cover post 904 and removal post 905, be convenient for play limiting action to the removal of No. two ear seats 903.

The working principle is as follows: when the device is moved to a required area, the user can open the electric push rod 501, the electric push rod 501 drives the rack 502 to move downwards, the rack 502 is meshed with the gear 504, the gear 504 rotates due to the downward movement of the rack 502, the first connecting rod 506 rotates under the action of the first rotating shaft, the L-shaped brake rod 507 rotates conveniently through the matching of the second rotating shaft and the third rotating shaft, when one side of the L-shaped brake rod 507 rotates to be in contact with the outer surface of the pulley 4, the L-shaped brake rod 507 is convenient to brake the pulley 4 through the matching of the L-shaped brake rod 507 and a rubber anti-skid pad plate, and the device is prevented from being displaced when not required to move;

the device can generate vibration in the moving process, the vibration can drive the cabinet body 1 and the mounting box 2 to move up and down, a part of vibration force is absorbed through the matching of the first telescopic column 7 and the second spring 8, meanwhile, through the matching of the first ear seat 901 and the second ear seat 903, the downward movement of the mounting box 2 and the mounting box 2 drives the downward movement of the first ear seat 901, so that the second connecting rod 902 rotates, the second ear seat 903 and the second sliding block 909 move to one side in the second sliding groove 910, the movement of the second ear seat 903 is limited by the sliding of the moving column 905 in the sleeve column 904, most of vibration force is absorbed through the matching of the second telescopic column 906 and the third spring 907, when the vibration disappears, the third spring 907 rebounds to drive the second telescopic column 906 to extend, so that the second ear seat 903 is pushed to move to the other side, so that the second connecting rod 902 rotates reversely, the mounting box 2 is pushed to the original position, so that the device has a damping function, and the electronic elements in the device are prevented from being damaged by vibration generated in the moving process;

when the device is not in use, a user may grasp the threaded rod 601, and rotate the threaded rod 601, through the action of the positioning block 602, the threaded rod 601 moves upwards in the rotating process, the stability of the movement of the trapezoidal moving block 603 is improved through the matching of the first sliding block 604 and the first sliding groove 605, when the trapezoidal moving block 603 is disconnected with the roller 610, since spring one 609 is initially compressed, spring one 609 rebounds, pushing anchor block 608 to move to one side, thereby driving the inserted link 606 to move to one side, when the inserted link 606 is disconnected with the slot, the user can separate the cabinet body 1 from the mounting box 2, the mounting and dismounting of the mounting box 2 are convenient, the utilization ratio of the device is improved, the required accommodating space of the device is saved, which is the using process of the cabinet body of the centrally-mounted cabinet, and those not described in detail in this specification are well within the skill of those in the art.

In conclusion, the centrally installed switchgear cabinet body can be moved under the action of the pulley 4 in the use process, labor is saved, the gear 504 is driven to rotate through the movement of the rack 502, the first connecting rod 506 is driven to rotate, the L-shaped brake rod 507 is made to rotate, the pulley 4 is conveniently braked through the matching of the L-shaped brake rod 507 and the pulley 4, the device is prevented from being displaced when not required to be moved, meanwhile, a part of vibration force is absorbed through the matching of the first telescopic column 7 and the second spring 8, the first ear seat 901 is downwards moved to rotate the second connecting rod 902 through the matching of the first ear seat 901 and the second ear seat 903, the second ear seat 903 is conveniently limited through the sliding of the movable column 905 in the sleeve column 904, most of vibration force is absorbed through the matching of the second telescopic column 906 and the third spring 907, and the device has a damping function, avoid the vibrations that the removal in-process produced to make the inside electronic component of the device damage, effect through the screw thread, threaded rod 601 produces the displacement at rotatory in-process, the removal of threaded rod 601 has driven the removal of first slider 604, the removal of first slider 604 can play the limiting displacement to the removal of inserted bar 606, through a spring 609, the effect of fixed block 608, can play limiting displacement to the removal of inserted bar 606, through the cooperation of inserted bar 606 and slot, be convenient for the installation and the dismantlement of mounting box 2, the utilization ratio of the device has been improved, the storage space that the device needs has been saved.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a put cabinet body in, includes cabinet body (1), its characterized in that: mounting box (2) have been cup jointed to the bottom of cabinet body (1), install removal base (3) in the below of mounting box (2), remove under base (3) four equal fixed mounting of extreme angle department of terminal surface have pulley (4), every one side of pulley (4) is all installed and is located the inside arrestment mechanism (5) of removal base (3), stop gear (6) are all installed to four extreme angle departments of mounting box (2) inside, four equal fixed mounting of extreme angle departments of terminal surface have first flexible post (7) under mounting box (2), No. two spring (8) have been cup jointed in the outside of first flexible post (7), four the internally mounted of first flexible post (7) has damper (9).

2. The centrally installed switchgear cabinet body according to claim 1, wherein: brake mechanism (5) include electric putter (501), the bottom fixed mounting of electric putter (501) has rack (502), bracing piece (503) are installed to one side of rack (502), the bottom swing joint of bracing piece (503) has gear (504), one side fixed mounting of bracing piece (503) has and is located No. two bracing pieces (505) of mobile base (3) inside, the preceding terminal surface swing joint of gear (504) has connecting rod (506), the one end swing joint of connecting rod (506) has L type brake lever (507).

3. The centrally installed switchgear cabinet body according to claim 2, wherein: electric putter (501) and removal base (3) are integrated structure, electric putter (501) pass through screwed connection with removal base (3), electric putter (501) pass through screwed connection with rack (502), rack (502) and gear (504) meshing, bracing piece (503) and gear (504) pass through the minor axis and are connected, bracing piece (503) and removal base (3) pass through screwed connection.

4. The centrally installed switchgear cabinet body according to claim 2, wherein: a connecting rod (506) is connected through a rotation axis with gear (504), a connecting rod (506) is connected through No. two rotation axes with L type brake lever (507), L type brake lever (507) is connected through No. three rotation axes with No. two bracing pieces (505), one side fixed mounting of L type brake lever (507) has rubber anti-skidding backing plate, and the surface of rubber anti-skidding backing plate is provided with anti-skidding granule.

5. The centrally installed switchgear cabinet body according to claim 1, wherein: stop gear (6) include threaded rod (601), locating piece (602) that are located mounting box (2) inside are installed in the outside of threaded rod (601), trapezoidal movable block (603) is installed to the bottom of threaded rod (601), one side fixed mounting of trapezoidal movable block (603) has first slider (604), the outside of first slider (604) is provided with first spout (605), inserted bar (606) are installed to the opposite side of trapezoidal movable block (603), slide (607) are installed in the outside of inserted bar (606), fixed block (608) that are located the inserted bar (606) outside are installed to one side of slide (607), the opposite side fixed mounting of fixed block (608) has a spring (609), the one end swing joint of inserted bar (606) has gyro wheel (610).

6. The centrally installed switchgear cabinet body according to claim 5, wherein: the positioning block (602) and the threaded rod (601) are of an integrated structure, a threaded groove is formed in the positioning block (602), the positioning block (602) is connected with the threaded rod (601) through threads, and the threaded rod (601) is connected with the trapezoidal moving block (603) through a roller bearing.

7. The centrally installed switchgear cabinet body according to claim 5, wherein: slide (607) pass through bolted connection with mounting box (2), sliding structure is constituteed with slide (607) in inserted bar (606), the one end and the slide (607) of a spring (609) pass through bolted connection, the other end and the fixed block (608) of a spring (609) pass through bolted connection, fixed block (608) pass through bolted connection with inserted bar (606).

8. The centrally installed switchgear cabinet body according to claim 5, wherein: the outside of inserted bar (606) other end is provided with the slot, and the inside of slot is equipped with the sealing strip, and the sealing strip passes through grafting glue with the slot and is connected.

9. The centrally installed switchgear cabinet body according to claim 1, wherein: the shock absorption mechanism (9) comprises a first ear seat (901), the lower end of the first ear seat (901) is movably connected with a second connecting rod (902), the bottom end of the second connecting rod (902) is movably connected with a second ear seat (903), one side of one of the second ear seats (903) is fixedly provided with a sleeve column (904), a movable column (905) is connected inside the sleeve column (904) in a sliding manner, an B telescopic column (906) is fixedly arranged on the other side of each second ear seat (903), a third spring (907) is fixedly arranged on the outer side of the second telescopic column (906), one end of the second telescopic column (906) is fixedly provided with a fixed plate (908) positioned on the upper end surface of the movable base (3), the bottom end of the second lug seat (903) is fixedly provided with a second sliding block (909), and the outer side of the second sliding block (909) is provided with a second sliding groove (910).

10. The centrally installed switchgear cabinet body according to claim 9, wherein: the utility model discloses a No. one ear seat (901) and mounting box (2) are through bolted connection, No. one ear seat (901) are connected through a locating shaft with No. two connecting rods (902), No. two connecting rods (902) are connected through No. two locating shafts with No. two ear seats (903), another one side and the removal post (905) of No. two ear seats (903) pass through bolted connection, second slider (909) passes through bolted connection with No. two ear seats (903), second slider (909) card is gone into to the inside of second spout (910).