CN113746006A

CN113746006A - High-reliability distribution box

Info

Publication number: CN113746006A
Application number: CN202111060985.3A
Authority: CN
Inventors: 靳双源; 蔡丰田; 张海; 玄晓婷
Original assignee: Fushun Power Supply Co Of State Grid Liaoning Electric Power Supply Co ltd; State Grid Corp of China SGCC
Current assignee: Fushun Power Supply Co Of State Grid Liaoning Electric Power Supply Co ltd; State Grid Corp of China SGCC
Priority date: 2021-09-10
Filing date: 2021-09-10
Publication date: 2021-12-03
Anticipated expiration: 2041-09-10
Also published as: CN113746006B

Abstract

The invention provides a high-reliability distribution box, which relates to the technical field of power equipment and comprises a box body, a bottom plate and a top plate, wherein the box body is arranged between the bottom plate and the top plate, the front surface of the box body is hinged with a box cover, the right end of the inner side of the box cover is provided with a fixed lock, the box cover is fixed with the box body through the fixed lock, the right end of the box body is provided with an anti-theft groove, a nut groove is arranged in the anti-theft groove, and a threaded rod is arranged in the nut groove in a threaded manner; according to the invention, the first-step locking is carried out through the fixed lock, the second-step locking is carried out by inserting the inner end of the threaded rod into the fixed sleeve, after the second-step locking, the right end of the threaded rod and the notch of the nut groove are on the same plane, and the prism disassembly button is pressed into the threaded rod, so that the box cover cannot be opened.

Description

High-reliability distribution box

Technical Field

The invention relates to the technical field of power equipment, in particular to a high-reliability distribution box.

Background

The distribution box is a general name of a motor control center, the distribution box is used in occasions with dispersed loads and less loops, the motor control center is used in occasions with concentrated loads and more loops, the distribution box distributes the electric energy of a certain circuit of the upper-level distribution equipment to the nearby loads, the equipment provides protection, monitoring and control for the loads, various circuit elements are arranged in the distribution box, and a distribution box body is needed to protect the elements;

the existing distribution box generally fixes the box cover and the box body directly through a lock, so that a lawless person in the structure can steal internal elements of the distribution box only by prying the lock with a tool, and the distribution box is poor in anti-theft effect and not reliable enough; meanwhile, in the prior art, the distribution box is generally arranged on a wall, and is easily affected by factors such as wall humidity and the like, so that elements are damaged and are not reliable enough, and therefore the invention provides the distribution box with high reliability to solve the problems in the prior art.

Disclosure of Invention

In order to solve the problems, the invention provides a high-reliability distribution box which is good in anti-theft performance and more reliable.

In order to realize the purpose of the invention, the invention is realized by the following technical scheme: a high-reliability distribution box comprises a box body, a bottom plate and a top plate, wherein the box body is arranged between the bottom plate and the top plate, a box cover is hinged to the front side of the box body, a fixing lock is arranged at the right end of the inner side of the box cover, the box cover is fixed to the box body through the fixing lock, an anti-theft groove is formed in the right end of the box body, a nut groove is formed in the anti-theft groove, a threaded rod is mounted in the nut groove in a threaded manner, a fixing sleeve matched with the threaded rod is arranged at the right end of the inner side of the box cover, the right end of the threaded rod and a notch of the nut groove are located on the same plane, a prism disassembling button is movably inserted at the right end of the threaded rod, a limiting groove is formed in the threaded rod, a limiting piece matched with the limiting groove is arranged at the inner end of the prism disassembling button, and the prism disassembling button is used for extending out of the threaded rod or completely retracting into the threaded rod;

the threaded rod is dismantled through the dismantlement subassembly, the dismantlement subassembly includes knob, strong magnet and magnetism and inhales the groove, the strong magnet is established on the knob, the magnetism is inhaled the groove and is established in one side of strong magnet, and magnetism inhales the groove and dismantle button looks adaptation with prismatic.

The further improvement lies in that: the roof top of the inboard position department of slot all communicates there is the draw-in groove, install the suspension pole on the draw-in groove, and the lower extreme of suspension pole is equipped with the cardboard with slot, draw-in groove looks adaptation.

The further improvement lies in that: the top of suspension pole is equipped with the stationary blade, and is equipped with the mounting hole on the stationary blade, the stationary blade passes through the mounting hole and constructs the fixed base face installation, all be equipped with the spacer on the roof of suspension pole both sides position department, and the spacer passes through the bolt and fixes with the roof, the spacer is used for fixing a position the suspension pole.

The further improvement lies in that: the bottom of the box inside is equipped with the supporting seat, and the front side of supporting seat is equipped with the seal groove, the top of supporting seat is equipped with the sealed passageway of circuit, and the sealed passageway of circuit runs through out bottom half and bottom plate, the inboard below of case lid is equipped with the sealed piece of gluing with seal groove looks adaptation, and is equipped with the passageway breach with the sealed passageway looks adaptation of circuit on the sealed piece of gluing.

The further improvement lies in that: the box cover is characterized in that supporting plates are arranged at the upper end and the lower end of the inner side of the box cover, sliding rods are arranged inside the supporting plates at the upper end and the lower end, sliding plates are movably mounted on the sliding rods, fans are arranged on the sliding plates, and the output ends of the fans face the interior of the box body.

The further improvement lies in that: the middle position of the inner side of the box cover is rotatably provided with a threaded lead screw through a shaft plate, the threaded lead screw penetrates through the sliding plate and is in threaded adaptation, and the threaded lead screw is driven to rotate through a motor.

The further improvement lies in that: the right-hand member at bottom plate top is equipped with the dust catcher, and the input of dust catcher is connected with the hose, the input of hose with the box intercommunication.

The further improvement lies in that: the both sides and the back of box are equipped with cooling channel, and cooling channel from top to bottom equidistance is equipped with the multiunit, multiunit crisscross intercommunication between the cooling channel.

The further improvement lies in that: the left end of the top of the bottom plate is provided with a cooling liquid tank and a liquid pump, cooling liquid is filled in the cooling liquid tank, the input end of the liquid pump is communicated with the cooling liquid tank, and the output end of the liquid pump is communicated with the cooling channel at the lower end.

The further improvement lies in that: the top intercommunication of coolant liquid case has the filter box, and the inside of filter box is equipped with the filter screen, the front of filter box is equipped with the cleaning door, the last intercommunication of filter box has the pipe, and the input of pipe and upper end cooling channel intercommunication.

The further improvement lies in that: the front of coolant liquid case is equipped with the scale window, and the scale window is used for showing the coolant liquid level of coolant liquid incasement portion, the below intercommunication of coolant liquid case left end has the filling tube, and is equipped with the closing cap on the filling tube.

The invention has the beneficial effects that:

1. according to the invention, the box cover and the box body are locked through the fixed lock, the first-step locking is carried out, the threaded rod rotates and moves in the nut groove, the inner end of the threaded rod is inserted into the fixed sleeve to carry out the second-step locking, after the second-step locking, the right end of the threaded rod and the notch of the nut groove are on the same plane, the prism disassembly button is pressed into the threaded rod to prevent burglary, so that the box cover cannot be opened, when an operator needs to open the box cover, the prism disassembly button is adsorbed out by the magnetic attraction groove of the strong magnet, the knob is rotated to drive the prism disassembly button and the threaded rod to rotate, the threaded rod can be disassembled from the nut groove, the locking is released, and in sum, the anti-theft performance is good, and the anti-theft performance is more reliable.

2. The fixing piece is fixed below the building base surface, so that the suspension rods are used for suspending and installing the box body, the box body is not required to be adsorbed on the wall in the suspending and installing mode, the effects of factors such as wall moisture and the like are avoided, the suspending and installing mode is high, the anti-theft effect is better achieved, the reliability is high, the suspension rods are installed on the clamping grooves through the clamping plates, the distance between the two groups of suspension rods can be changed randomly, the suspension rods are locked through the positioning pieces, the box body is convenient to adapt to building installation base surfaces with different sizes, and the installation is convenient.

3. According to the invention, the screw lead screw rotates to drive the sliding plate to move along the sliding rod, so that the fan can be conveniently driven to move to blow and remove dust from the internal elements of the box body, and the suction force generated in the box body by matching with the dust collector is convenient to clean the internal elements, thereby avoiding the influence of dust and improving the overall stability and reliability.

4. According to the invention, the cooling liquid in the cooling liquid tank is sent into the cooling channels through the liquid pump, flows in the multiple groups of cooling channels, circulates into the filter box for filtering, and then flows back to the cooling liquid tank, so that the process is favorable for radiating the tank body, heat accumulation of internal elements is avoided, and the functions are diversified.

Drawings

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

FIG. 2 is a schematic view of the present invention with the lid open;

FIG. 3 is a schematic view of the structure at position A of the present invention;

FIG. 4 is a schematic view of the structure at B of the present invention;

FIG. 5 is a schematic view of a threaded rod and removal assembly of the present invention;

fig. 6 is a schematic view of the suspension bar installation of the present invention.

Wherein: 1. a box body; 2. a base plate; 3. a top plate; 4. a box cover; 5. fixing a lock; 6. an anti-theft slot; 7. a nut groove; 8. a threaded rod; 9. fixing a sleeve; 10. a prism removal knob; 11. a limiting groove; 12. a limiting sheet; 13. a knob; 14. strong magnets; 15. a magnetic attraction groove; 16. a slot; 17. a card slot; 18. a suspension rod; 19. clamping a plate; 20. a fixing sheet; 21. mounting holes; 22. positioning plates; 23. a bolt; 24. a supporting seat; 25. a sealing groove; 26. a line sealing channel; 27. sealing the rubber block; 28. a channel gap; 29. a support plate; 30. a slide rod; 31. a slide plate; 32. a fan; 33. a threaded lead screw; 34. a vacuum cleaner; 35. a cooling channel; 36. a coolant tank; 37. a liquid pump; 38. a filter cartridge; 39. a conduit; 40. and (4) a scale window.

Detailed Description

In order to further understand the present invention, the following detailed description will be made with reference to the following examples, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.

Example one

According to fig. 1, 2, 3, 4, 5, and 6, this embodiment provides a high-reliability distribution box, which includes a box body 1, a bottom plate 2, and a top plate 3, wherein the box body 1 is disposed between the bottom plate 2 and the top plate 3, and the front surface of the box body 1 is hinged with a box cover 4, the right end of the inner side of the box cover 4 is provided with a fixing lock 5, and the box cover 4 is fixed with the box body 1 through the fixing lock 5, the right end of the box body 1 is provided with an anti-theft groove 6, and a nut groove 7 is disposed in the anti-theft groove 6, a threaded rod 8 is mounted in the nut groove 7 through an internal thread, the right end of the inner side of the box cover 4 is provided with a fixing sleeve 9 adapted to the threaded rod 8, the right end of the threaded rod 8 and the notch of the nut groove 7 are on the same plane, and a prismatic disassembly button 10 is movably inserted at the right end of the threaded rod 8, a limiting groove 11 is disposed inside the threaded rod 8, the inner end of the prismatic disassembly button 10 is provided with a limiting piece 12 adapted to the limiting groove 11, the prism disassembly button 10 is used for extending out of the threaded rod 8 or being completely retracted into the threaded rod 8;

threaded rod 8 is dismantled through the dismantlement subassembly, the dismantlement subassembly includes knob 13, strong magnet 14 and magnetism inhales groove 15, strong magnet 14 is established on knob 13, magnetism inhales groove 15 and establishes in one side of strong magnet 14, and magnetism inhales groove 15 and prismatic 10 looks adaptations of dismantling of button. During the use, through fixed lock 5 locking case lid 4 and box 1, carry out the locking of first step, through threaded rod 8 swivelling movement in nut groove 7, make the inner of threaded rod 8 insert fixed cover 9 and carry out the locking of second step, after the locking of second step, the right-hand member of threaded rod 8 is on the coplanar with the notch of nut groove 7, press into threaded rod 8 prism dismantlement button 10 in, guard against theft, make the case lid unable by the opening, when operating personnel need open, only need utilize magnetism to inhale prism dismantlement button 10 with strong magnet 14's magnetism groove 15, rotatory knob 13, it is rotatory to drive prism dismantlement button 10 and threaded rod 8, can follow nut groove 7 and dismantle, remove the locking.

The two sides of the top plate 3 are provided with slots 16, the tops of the top plates 3 at the inner side positions of the slots 16 are communicated with clamping grooves 17, suspension rods 18 are mounted on the clamping grooves 17, and clamping plates 19 matched with the slots 16 and the clamping grooves 17 are arranged at the lower ends of the suspension rods 18. The top of suspension pole 18 is equipped with stationary blade 20, and is equipped with mounting hole 21 on the stationary blade 20, stationary blade 20 passes through the mounting hole and constructs the fixed base face installation, all be equipped with spacer 22 on the roof 3 of suspension pole 18 both sides position department, and spacer 22 passes through bolt 23 and roof 3 is fixed, spacer 22 is used for fixing a position suspension pole 18. During the use, through fixing the stationary blade 20 under the building base face, thereby utilize suspension rod 18 to suspend installation box 1 in midair, this kind of installation of suspending in midair, box 1 need not to adsorb on the wall, avoid receiving the influence of factors such as wall moisture, suspend the installation in midair, it is high, be favorable to the theftproof more, the reliability is high, and suspension rod 18 passes through cardboard 19 to be installed on draw-in groove 17, can change the interval between two sets of suspension rods 18 wantonly, rethread spacer 22 locks, conveniently be fit for not unidimensional building installation base face.

The inside bottom of box 1 is equipped with supporting seat 24, and the front side of supporting seat 24 is equipped with seal groove 25, the top of supporting seat 24 is equipped with circuit seal passageway 26, and circuit seal passageway 26 runs through out box 1 bottom and bottom plate, the inboard below of case lid 4 is equipped with the sealed piece 27 of gluing with seal groove 25 looks adaptation, and is equipped with the passageway breach 28 with circuit seal passageway 26 looks adaptation on the sealed piece 27 of gluing. When the box cover is used, the box cover 4 is closed, the sealing rubber block 27 is inserted into the sealing groove 25, the sealing performance of the box body 1 is improved, and when wires are wired, the wires penetrate through the line sealing channel 26 to be wired.

Example two

As shown in fig. 1, 2, 3, 4, and 5, this embodiment provides a high-reliability distribution box, which includes a box body 1, a bottom plate 2, and a top plate 3, wherein the box body 1 is disposed between the bottom plate 2 and the top plate 3, and the front surface of the box body 1 is hinged with a box cover 4, the right end of the inner side of the box cover 4 is provided with a fixing lock 5, the box cover 4 is fixed to the box body 1 through the fixing lock 5, the right end of the box body 1 is provided with an anti-theft groove 6, a nut groove 7 is disposed in the anti-theft groove 6, a threaded rod 8 is mounted in the nut groove 7 via a thread, a fixing sleeve 9 adapted to the threaded rod 8 is disposed at the right end of the inner side of the box cover 4, the right end of the threaded rod 8 and the notch of the nut groove 7 are on the same plane, a prismatic dismounting button 10 is movably inserted at the right end of the threaded rod 8, a limiting groove 11 is disposed in the threaded rod 8, a limiting piece 12 adapted to the limiting groove 11 is disposed at the inner end of the prismatic dismounting button 10, the prism disassembly button 10 is used for extending out of the threaded rod 8 or being completely retracted into the threaded rod 8;

The upper end and the lower end of the inner side of the box cover 4 are both provided with a support plate 29, a slide rod 30 is arranged inside each support plate 29 at the upper end and the lower end, a slide plate 31 is movably mounted on each slide rod 30, a fan 32 is arranged on each slide plate 31, and the output end of each fan 32 faces the inside of the box body 1. The middle position of the inner side of the box cover 4 is rotatably provided with a thread screw rod 33 through a shaft plate, the thread screw rod 33 penetrates through the sliding plate 31 and is in thread fit, and the thread screw rod 33 is driven to rotate through a motor. The right-hand member at bottom plate 2 top is equipped with dust catcher 34, and the input of dust catcher 34 is connected with the hose, the input of hose with box 1 intercommunication. When the box body 1 is used, the threaded screw rod 33 rotates to drive the sliding plate 31 to move along the sliding rod 30, the fan 32 is conveniently driven to move to blow and remove dust from internal elements of the box body 1, and the suction force generated in the box body 1 by matching with the dust collector 34 is convenient to clean the internal elements.

EXAMPLE III

The both sides and the back of box 1 are equipped with cooling channel 35, and cooling channel 35 from top to bottom equidistance is equipped with multiunit, multiunit crisscross intercommunication between the cooling channel 35. A cooling liquid tank 36 and a liquid pump 37 are arranged at the left end of the top of the bottom plate 2, cooling liquid is filled in the cooling liquid tank 36, the input end of the liquid pump 37 is communicated with the cooling liquid tank 36, and the output end of the liquid pump 37 is communicated with the cooling channel 35 at the lower end. The top of coolant liquid case 36 communicates with filter box 38, and filter box 38's inside is equipped with the filter screen, filter box 38's front is equipped with the cleaning door, filter box 38 is last to communicate with pipe 39, and the input of pipe 39 and upper end cooling channel 35 communicate. During the use, send into cooling channel 35 through the coolant liquid of liquid pump 37 in with coolant liquid case 36, flow and circulate in multiunit cooling channel 35 and filter 38 internal filtration, flow back to coolant liquid case 36 again, this process is favorable to dispelling the heat to box 1, avoids the thermal siltation of internal component.

The front of coolant liquid case 36 is equipped with scale window 40, and scale window 40 is used for showing the inside coolant liquid level of coolant liquid case 36, the below intercommunication of the 36 left ends of coolant liquid case has the filling tube, and is equipped with the closing cap on the filling tube. It is convenient to observe the amount of coolant inside the coolant tank 36 for addition.

The high-reliability distribution box locks the box cover 4 and the box body 1 through the fixed lock 5 to perform first-step locking, the threaded rod 8 rotates and moves in the nut groove 7 to enable the inner end of the threaded rod 8 to be inserted into the fixed sleeve 9 to perform second-step locking, after the second-step locking, the right end of the threaded rod 8 and the notch of the nut groove 7 are on the same plane, the prism disassembly button 10 is pressed into the threaded rod 8 to prevent theft, the box cover cannot be opened, when an operator needs to open the distribution box, the prism disassembly button 10 is adsorbed by the magnetic attraction groove 15 of the strong magnet 14, the knob 13 is rotated to drive the prism disassembly button 10 and the threaded rod 8 to rotate, the threaded rod can be disassembled from the nut groove 7, the locking is released, and the anti-theft performance is good and more reliable, meanwhile, the distribution box body 1 is hung and installed by the hanging rod 18 through the fixed sheet 20 fixed under the building base surface, in the suspension installation, the box body 1 is not required to be adsorbed on a wall, the influence of factors such as wall moisture is avoided, the suspension installation is high, the height is higher, the anti-theft effect is better facilitated, the reliability is high, the suspension rods 18 are installed on the clamping grooves 17 through the clamping plates 19, the distance between the two groups of suspension rods 18 can be changed at will, the suspension rods are locked through the positioning plates 22, the suspension installation is convenient to adapt to building installation base surfaces with different sizes, in addition, the threaded screw rods 33 rotate to drive the sliding plates 31 to move along the sliding rods 30, the fans 32 to move to blow and remove dust on internal elements of the box body 1, the suction force is generated in the box body 1 by matching with the dust collectors 34, the internal elements are convenient to clean, the influence of dust is avoided, the integral stability and reliability are improved, finally, the cooling liquid in the cooling liquid box 36 is sent into the cooling channels 35 through the liquid pumps 37, flows in the multiple groups of the cooling channels 35 and circulates into the filter boxes 38 to be filtered, and then flows back to the cooling liquid tank 36, so that the heat dissipation of the tank body 1 is facilitated, the heat accumulation of internal elements is avoided, and the functions are diversified.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a block terminal of high reliability, includes box (1), bottom plate (2) and roof (3), its characterized in that: the box body (1) is arranged between the bottom plate (2) and the top plate (3), the front of the box body (1) is hinged with a box cover (4), the right end of the inner side of the box cover (4) is provided with a fixed lock (5), the box cover (4) is fixed with the box body (1) through the fixed lock (5), the right end of the box body (1) is provided with an anti-theft groove (6), a nut groove (7) is arranged in the anti-theft groove (6), a threaded rod (8) is installed in the nut groove (7) through internal threads, the right end of the inner side of the box cover (4) is provided with a fixed sleeve (9) matched with the threaded rod (8), the right end of the threaded rod (8) and the notch of the nut groove (7) are on the same plane, a prism disassembly button (10) is movably inserted at the right end of the threaded rod (8), a limit groove (11) is arranged in the threaded rod (8), a limit sheet (12) matched with the limit groove (11) is arranged at the inner end of the prism disassembly button (10), the prism disassembly button (10) is used for extending out of the threaded rod (8) or completely retracting into the threaded rod (8);

threaded rod (8) are dismantled through the dismantlement subassembly, the dismantlement subassembly includes that knob (13), strong magnet (14) and magnetism inhale groove (15), strong magnet (14) are established on knob (13), groove (15) are inhaled in the magnetism and are established in one side of strong magnet (14), and inhale groove (15) and prismatic dismantlement button (10) looks adaptation.

2. A high reliability electrical distribution box according to claim 1, characterized in that: the roof (3) top both sides all are equipped with slot (16), and two sets of roof (3) top of slot (16) inboard position department all communicates there is draw-in groove (17), install suspension pole (18) on draw-in groove (17), and the lower extreme of suspension pole (18) is equipped with cardboard (19) with slot (16), draw-in groove (17) looks adaptation.

3. A high reliability electrical distribution box according to claim 2, characterized in that: the top of suspension pole (18) is equipped with stationary blade (20), and is equipped with mounting hole (21) on stationary blade (20), stationary blade (20) are through the mounting hole and the installation of the fixed base face of building, all be equipped with spacer (22) on roof (3) of suspension pole (18) both sides position department, and spacer (22) are fixed through bolt (23) and roof (3), spacer (22) are used for fixing a position suspension pole (18).

4. A high reliability electrical distribution box according to claim 3, characterized in that: the inside bottom of box (1) is equipped with supporting seat (24), and the front side of supporting seat (24) is equipped with seal groove (25), the top of supporting seat (24) is equipped with circuit seal passageway (26), and circuit seal passageway (26) run through box (1) bottom and bottom plate, the inboard below of case lid (4) is equipped with sealed gluey piece (27) with seal groove (25) looks adaptation, and is equipped with on sealed gluey piece (27) with passageway breach (28) of circuit seal passageway (26) looks adaptation.

5. A high reliability electric box according to any of claims 1 to 4, characterized in that: the box cover is characterized in that supporting plates (29) are arranged at the upper end and the lower end of the inner side of the box cover (4), sliding rods (30) are arranged inside the supporting plates (29) at the upper end and the lower end, sliding plates (31) are movably mounted on the sliding rods (30), fans (32) are arranged on the sliding plates (31), and the output ends of the fans (32) face the inside of the box body (1).

6. A high reliability electric box according to claim 5, characterized in that: the middle position of the inner side of the box cover (4) is provided with a threaded screw rod (33) in a rotating mode through a shaft plate, the threaded screw rod (33) penetrates through the sliding plate (31) and is matched with threads, and the threaded screw rod (33) is driven to rotate through a motor.

7. The high reliability electrical distribution box of claim 6, wherein: the right-hand member at bottom plate (2) top is equipped with dust catcher (34), and the input of dust catcher (34) is connected with the hose, the input of hose with box (1) intercommunication.

8. A high reliability electric box according to any of claims 1 to 4, characterized in that: the both sides and the back of box (1) are equipped with cooling channel (35), and cooling channel (35) from top to bottom equidistance is equipped with the multiunit, multiunit crisscross intercommunication between cooling channel (35).

9. A high reliability electrical distribution box according to claim 8, wherein: the left end at the top of the bottom plate (2) is provided with a cooling liquid tank (36) and a liquid pump (37), cooling liquid is filled in the cooling liquid tank (36), the input end of the liquid pump (37) is communicated with the cooling liquid tank (36), and the output end of the liquid pump (37) is communicated with the cooling channel (35) at the lower end.

10. A highly reliable electrical distribution box according to claim 9, characterized in that: the top of the cooling liquid tank (36) is communicated with a filtering box (38), a filter screen is arranged in the filtering box (38), a cleaning door is arranged on the front face of the filtering box (38), a guide pipe (39) is communicated with the filtering box (38), and the input end of the guide pipe (39) is communicated with the cooling channel (35) at the upper end;

the front of coolant liquid case (36) is equipped with scale window (40), and scale window (40) are used for showing the inside coolant liquid level of coolant liquid case (36), the below intercommunication of coolant liquid case (36) left end has the filling tube, and is equipped with the closing cap on the filling tube.