CN211474251U - Diesel generating set with external oil tank - Google Patents

Diesel generating set with external oil tank Download PDF

Info

Publication number
CN211474251U
CN211474251U CN202020101899.7U CN202020101899U CN211474251U CN 211474251 U CN211474251 U CN 211474251U CN 202020101899 U CN202020101899 U CN 202020101899U CN 211474251 U CN211474251 U CN 211474251U
Authority
CN
China
Prior art keywords
oil tank
external oil
base
groove
sleeve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN202020101899.7U
Other languages
Chinese (zh)
Inventor
张福泉
张继承
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xiamen Kangwo Electromechanical Equipment Co ltd
Original Assignee
Xiamen Kangwo Electromechanical Equipment Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xiamen Kangwo Electromechanical Equipment Co ltd filed Critical Xiamen Kangwo Electromechanical Equipment Co ltd
Priority to CN202020101899.7U priority Critical patent/CN211474251U/en
Application granted granted Critical
Publication of CN211474251U publication Critical patent/CN211474251U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

The utility model relates to a diesel generating set with an external oil tank, which comprises a base, wherein a generating set body is arranged on the base, the external oil tank is detachably arranged on the base, a holding tank for holding the external oil tank is arranged on the base, and a mounting plate is arranged at the bottom of the external oil tank; the top surface of the base is provided with two grooves, the two grooves are symmetrically distributed on two sides of the central line of the length direction of the accommodating groove, a sleeve is arranged in the groove along the width direction of the base, an installation seat used for installing the sleeve is arranged in the groove, and the sleeve is rotatably connected with the installation seat; a threaded rod is coaxially arranged in the sleeve and is in threaded connection with the sleeve, one end of the threaded rod penetrates through the side wall of the groove and is inserted into the accommodating groove, and a clamping groove for clamping the end part of the threaded rod is formed in the side wall of the mounting plate; and the driving device is used for generating acting force to drive the sleeve to rotate. The utility model has the advantages of easy to assemble or dismantle external oil tank in order to maintain and overhaul.

Description

Diesel generating set with external oil tank
Technical Field
The utility model belongs to the technical field of diesel generating set's technique and specifically relates to a diesel generating set with external oil tank is related to.
Background
The diesel generator is a power supply device which takes a diesel engine as a prime mover and drives a synchronous generator to generate electricity, and is a power generation device which has the advantages of rapid driving, convenient operation and maintenance, less investment and stronger adaptability to the environment. Diesel generating set's bottom generally all is equipped with the bottom oil tank, but the bottom oil tank can lead to hydraulic fluid port and filter screen to block up after long-time the use, and then can lead to the fuel feeding not enough, influences the generating efficiency. Therefore, a diesel generator set with high power generally needs to be provided with an external oil tank so as to meet the long-time normal use of the generator set.
The current application publication number is CN 107975444A's chinese patent discloses a generating set's independent oil tank, including the oil tank body of cuboid structure and set up a plurality of mountings on this oil tank body, the oil tank body is including relative first lateral wall and the fourth lateral wall that sets up, relative second lateral wall and the fifth lateral wall that sets up, and the third lateral wall, first lateral wall is adjacent with the second lateral wall is perpendicular, the third lateral wall is perpendicular in first lateral wall and second lateral wall respectively, be equipped with oil inlet and the oil return opening with the oil storage chamber intercommunication of oil tank body on the first lateral wall, the mounting sets up respectively in first lateral wall, the edge that intersects with the third lateral wall on second lateral wall and the fifth lateral wall. The fixed piece is a direct bending piece extending outwards, and a fixed hole is arranged on the extending surface of the fixed piece parallel to the third side wall. The independent oil tank in the above-mentioned patent that discloses can realize freely dismantling and changing of oil tank through the mounting that sets up on the oil tank body, needs the prosthetic problem of complete machine when having solved the oil tank and leaking oil.
The above prior art solutions have the following drawbacks: when the independent oil tank in the above-mentioned patent is installed or is dismantled, through installing bolt or bolt in the fixed orifices or dismantling bolt or bolt from the fixed orifices in order to realize installing independent oil tank on generating set or dismantling the purpose that independent oil tank from generating set got off one by one, bolt or bolt when more, install or dismantle the bolt one by one again and just comparatively loaded down with trivial details complicacy, reduced work efficiency to a certain extent.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, one of the purposes of the utility model is to provide a diesel generating set with external oil tank, it has easy to assemble or dismantles the advantage of external oil tank in order to maintain and overhaul.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
a diesel generating set with an external oil tank comprises a base, wherein a generating set body is arranged on the base, the external oil tank is detachably arranged on the base, the external oil tank is provided with an oil conveying pipe communicated with the generating set body, and the oil conveying pipe is detachably connected with the generating set body;
the base is provided with an accommodating groove for accommodating an external oil tank, and the bottom of the external oil tank is provided with an installation plate;
the top surface of the base is provided with two grooves, the two grooves are symmetrically distributed on two sides of the central line of the length direction of the accommodating groove, a sleeve is arranged in each groove along the width direction of the base, an installation seat used for installing the sleeve is arranged in each groove, and the sleeve is rotatably connected with the installation seat;
a threaded rod is coaxially arranged in the sleeve and is in threaded connection with the sleeve, one end of the threaded rod penetrates through the side wall of the groove and is inserted into the accommodating groove, and a clamping groove for clamping the end part of the threaded rod is formed in the side wall of the mounting plate;
and the driving device is used for generating acting force to drive the sleeve to rotate.
Through adopting above-mentioned technical scheme, place external oil tank in the holding tank, utilize drive arrangement drive sleeve to rotate to drive the threaded rod and rotate, and then can make the tip card of threaded rod go into in the draw-in groove, thereby can fix external oil tank in the holding tank, reach the purpose of installing external oil tank. When external oil tank needs to be dismantled, the driving device is recycled to rotate the threaded rod reversely so that the end part of the threaded rod is separated from the clamping groove, and therefore the external oil tank can be dismantled for maintenance and overhaul. Compared with the prior art, the scheme can realize the installation or the disassembly of the external oil tank without installing or disassembling the bolt or the bolt one by one, the operation is simple and rapid, and the working efficiency is improved to a certain extent.
The present invention may be further configured in a preferred embodiment as: the driving device comprises a bevel gear ring coaxially sleeved on the sleeve, a rotating rod is arranged in the groove along the length direction of the base, a supporting plate used for installing the rotating rod is arranged in the groove, and the rotating rod penetrates through the supporting plate and is rotatably connected with the supporting plate;
one end of the rotating rod is provided with a transition bevel gear which is meshed with the bevel gear ring;
the other end of dwang runs through the lateral wall of recess and is connected with and is used for driving dwang pivoted drive assembly.
Through adopting above-mentioned technical scheme, utilize drive assembly drive dwang to rotate in order to drive transition bevel gear and rotate to utilize transition bevel gear to drive bevel gear ring and rotate, and then utilize the muffjoint rotation to remove along telescopic length direction in order to order about the threaded rod, thereby can make the tip card of threaded rod go into or break away from the draw-in groove, reach the purpose of installation or dismantlement external oil tank.
The present invention may be further configured in a preferred embodiment as: the driving assembly comprises a rotating handle arranged at the end part of the rotating rod.
Through adopting above-mentioned technical scheme, rotate rotatory handle and remove in order to order about the threaded rod along telescopic length direction to make the tip card of threaded rod go into or break away from the draw-in groove, and then reach the purpose of installation or dismantlement external oil tank.
The present invention may be further configured in a preferred embodiment as: the driving assembly comprises a driven bevel gear arranged at the end part of the rotating rod and also comprises a driving bevel gear meshed with the driven bevel gear, and the two driving bevel gears are sleeved on the same connecting rod together and are arranged oppositely at the ends with larger diameters of the two driving bevel gears;
the connecting rod is arranged along the width direction of the base, a connecting plate for mounting the connecting rod is arranged on the side wall of the base, and the connecting rod is rotatably connected with the connecting plate;
the device also comprises a driving piece for driving the rotating rod to rotate.
Through adopting above-mentioned technical scheme, utilize driving piece drive connecting rod to rotate, and then two threaded rods of simultaneous drive move along telescopic length direction to make the tip card of two threaded rods go into simultaneously or break away from the draw-in groove, and then reach the purpose of installation or dismantlement external oil tank.
The present invention may be further configured in a preferred embodiment as: the driving piece comprises a rotating handle arranged at one end of the rotating rod.
Through adopting above-mentioned technical scheme, rotate the rotation handle and block in or break away from the draw-in groove with two threaded rods of drive simultaneously to reach the purpose of installation or dismantlement external oil tank.
The present invention may be further configured in a preferred embodiment as: the top surface of base is equipped with the spigot surface that communicates in the holding tank along the length direction of base, the holding tank is located between generating set body and the spigot surface.
Through adopting above-mentioned technical scheme, when installation or dismantlement external oil tank, usable spigot surface will be external oil tank push in the holding tank or will be external oil tank from the holding tank, the staff of being convenient for installs or dismantles external oil tank.
The present invention may be further configured in a preferred embodiment as: and a protective pad is arranged on the side wall of the accommodating groove opposite to the guide surface.
Through adopting above-mentioned technical scheme, when pushing external oil tank into the holding tank, utilize the protection pad to slow down the impact force of external oil tank to the holding tank lateral wall, also protect external oil tank not hindered by the collision simultaneously.
The present invention may be further configured in a preferred embodiment as: the external oil tank is provided with a handle.
Through adopting above-mentioned technical scheme, the staff of being convenient for is in order to remove external oil tank through holding the handle.
To sum up, the utility model discloses a following at least one useful technological effect:
1. by arranging the threaded rod and the sleeve, the sleeve is rotated to drive the threaded rod to be clamped into or separated from the clamping groove, so that the purpose of mounting or dismounting the external oil tank is achieved, the operation is simple and rapid, and the working efficiency is improved to a certain extent;
2. through setting up the connecting rod and overlapping the initiative bevel gear on locating the connecting rod, rotate the connecting rod and block into or break away from the draw-in groove simultaneously with the tip of drive two threaded rods to realize the installation and the dismantlement of external oil tank, further improvement work efficiency.
Drawings
FIG. 1 is a schematic structural diagram of a diesel generator set with an external oil tank in one embodiment;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is an exploded view of a diesel generator set with an external fuel tank according to one embodiment;
FIG. 4 is an enlarged view of portion B of FIG. 3;
fig. 5 is an exploded view of a diesel generator set with an external fuel tank according to the second embodiment.
In the figure, 1, a base; 11. a generator set body; 111. a receiving tube; 112. a second flange; 12. accommodating grooves; 121. a protective pad; 13. a guide surface; 14. a groove; 141. a mounting seat; 142. a support plate; 15. a connecting plate; 16. a plugging plate; 2. an external oil tank; 21. an oil delivery pipe; 211. a first flange; 212. a bolt; 22. a handle; 23. mounting a plate; 231. a card slot; 3. a sleeve; 31. a bevel gear ring; 32. a threaded rod; 5. rotating the rod; 51. a transition bevel gear; 52. rotating the handle; 53. a driven bevel gear; 6. a connecting rod; 61. a drive bevel gear; 62. the handle is rotated.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example one
Referring to fig. 1, for the utility model discloses a diesel generating set with external oil tank, including square base 1, be equipped with generating set body 11 on the base 1, can dismantle on the base 1 and be equipped with square external oil tank 2, external oil tank 2 is located base 1 length direction's one end. The lateral wall of external oil tank 2 is equipped with defeated oil pipe 21 that is used for communicateing generating set body 11, and generating set body 11 is equipped with receiver tube 111, and defeated oil pipe 21 keeps away from the one end of external oil tank 2 and inserts in receiver tube 111. Referring to fig. 2, a first flange 211 is provided on an outer circumferential side wall of the oil pipe 21, a second flange 112 is provided on an outer circumferential side wall of the receiver pipe 111, and the first flange 211 and the second flange 112 are connected by a bolt 212 after the oil pipe 21 is inserted into the receiver pipe 111.
Referring to fig. 3, two U-shaped handles 22 are disposed at the top of the external fuel tank 2, and the two handles 22 are symmetrically disposed on two sides of the central line of the external fuel tank 2 in the length direction. The top surface of base 1 is opened there is holding tank 12 that is used for placing external oil tank 2, and base 1's top surface is equipped with the spigot surface 13 that communicates in holding tank 12, and holding tank 12 is located between generating set body 11 and spigot surface 13. The guide surface 13 is an inclined surface, and one end of the guide surface 13 close to the accommodating groove 12 is inclined towards the bottom of the accommodating groove 12, so that the external oil tank 2 can be conveniently pushed into the accommodating groove 12 or pulled out of the accommodating groove 12 by a worker.
Referring to fig. 4, a protection pad 121 is disposed on a side wall of the receiving groove 12 opposite to the guide surface 13 to reduce an impact force of the external fuel tank 2 on the receiving groove 12, so as to prevent the external fuel tank 2 from being damaged by the impact.
Referring to fig. 4, the bottom of the external fuel tank 2 is provided with a mounting plate 23 for being placed in the receiving groove 12. The top surface of base 1 is opened along the length direction of base 1 has two square recesses 14, and two recesses 14 symmetric distribution are in the both sides of holding tank 12 length direction central line. A hollow cylindrical sleeve 3 is arranged in the groove 14 along the width direction of the base 1, a square mounting seat 141 for mounting the sleeve 3 is arranged in the groove 14, and the sleeve 3 penetrates through the mounting seat 141 and is rotatably connected with the mounting seat 141.
Referring to fig. 4, a cylindrical threaded rod 32 is coaxially disposed in the sleeve 3, and the threaded rod 32 is threadedly coupled to the sleeve 3. One end of the threaded rod 32 penetrates through the side wall of the groove 14 and extends into the accommodating groove 12, and a clamping groove 231 for clamping the end part of the threaded rod 32 is formed in the side wall of the mounting plate 23.
Referring to fig. 4, a cylindrical rotating rod 5 is disposed in the groove 14 along the length direction of the base 1, a supporting plate 142 for mounting the rotating rod 5 is disposed in the groove 14, and the rotating rod 5 penetrates through the supporting plate 142 and is rotatably connected to the supporting plate 142. The peripheral lateral wall cover of sleeve 3 is equipped with bevel gear ring 31, and the one end that dwang 5 is close to sleeve 3 is equipped with the transition bevel gear 51 with bevel gear ring 31 intermeshing. The end of the rotating rod 5 away from the transition bevel gear 51 penetrates the side wall of the groove 14 and is provided with a rotating handle 52. Referring to fig. 3, a blocking plate 16 is disposed at the notch of the groove 14 to block the notch of the groove 14, so as to prevent impurities from falling into the groove 14 and affecting the normal rotation of the bevel gear ring 31 and the transition bevel gear 51.
The rotating handle 52 is rotated to rotate the rotating rod 5, so that the transition bevel gear 51 is utilized to drive the sleeve 3 to rotate, the threaded rod 32 is further moved along the axis of the sleeve 3, the end part of the threaded rod 32 can be clamped into or separated from the clamping groove 231, and the purpose of mounting or dismounting the external oil tank 2 is achieved.
The implementation principle of the embodiment is as follows: when the external oil tank 2 is mounted, the external oil tank 2 is pushed into the accommodating groove 12, and the oil delivery pipe 21 of the external oil tank 2 is connected to the receiving pipe 111 on the generator set body 11. The rotating handle 52 is rotated to clamp the end of the threaded rod 32 into the clamping groove 231, so that the external oil tank 2 can be fixed in the accommodating groove 12, and the purpose of installing the external oil tank 2 is achieved. When the external oil tank 2 needs to be overhauled or replaced, the rotating handle 52 is rotated, so that the end part of the threaded rod 32 is separated from the clamping groove 231, and the external oil tank 2 can be disassembled for overhauling or maintenance. Compared with the prior art in which bolts need to be installed or detached one by one, the operation of the embodiment is simple, the external oil tank 2 can be installed or detached conveniently and quickly, and the working efficiency is improved to a certain extent.
Example two
A diesel generating set with an external oil tank is disclosed, referring to FIG. 5, based on the first embodiment, the difference between the first embodiment and the second embodiment is as follows: the one end that dwang 5 stretches out recess 14 is equipped with driven bevel gear 53, and base 1 length direction's one end is equipped with a columniform connecting rod 6 along base 1's width direction, and base 1 length direction's terminal surface is equipped with two parallel connecting plates 15, and connecting rod 6 runs through two connecting plates 15 and is connected with connecting plate 15 rotation. The connecting rod 6 is provided with a driving bevel gear 61 which is meshed with the two driven bevel gears 53 respectively, and the ends with larger diameters of the two driving bevel gears 61 are arranged oppositely, so that the connecting rod 6 can drive the two threaded rods 32 to be close to or far away from each other when rotating, and the end parts of the two threaded rods 32 are clamped into or separated from the clamping grooves 231 simultaneously. One end of the connecting rod 6 is provided with a rotating handle 62, so that a worker can rotate the connecting rod 6 by holding the rotating handle 62.
The implementation principle of the embodiment is as follows: the connecting rod 6 is rotated to enable the two driving bevel gears 61 to drive the two driven bevel gears 53 to rotate, so that the two transition bevel gears 51 drive the two sleeves 3 to rotate, the two threaded rods 32 are enabled to be close to or away from each other at the same time, the end portions of the two threaded rods 32 are simultaneously clamped into or separated from the clamping grooves 231, and the external oil tank 2 is convenient to install or disassemble by workers. In this embodiment, the worker only needs to rotate the rotating handle 62 to clamp or separate the ends of the two threaded rods 32 into the clamping groove 231, so that the operation is simple and fast, and the efficiency of installing or disassembling the external oil tank 2 can be improved to a certain extent.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. The utility model provides a diesel generating set with external oil tank, includes base (1), its characterized in that: the generator set is characterized in that a generator set body (11) is arranged on the base (1), an external oil tank (2) is detachably arranged on the base (1), an oil delivery pipe (21) communicated with the generator set body (11) is arranged on the external oil tank (2), and the oil delivery pipe (21) is detachably connected with the generator set body (11);
an accommodating groove (12) for accommodating the external oil tank (2) is formed in the base (1), and an installing plate (23) is arranged at the bottom of the external oil tank (2);
the top surface of the base (1) is provided with two grooves (14), the two grooves (14) are symmetrically distributed on two sides of the central line of the length direction of the accommodating groove (12), a sleeve (3) is arranged in each groove (14) along the width direction of the base (1), an installation seat (141) for installing the sleeve (3) is arranged in each groove (14), and the sleeve (3) is rotatably connected with the installation seat (141);
a threaded rod (32) is coaxially arranged in the sleeve (3), the threaded rod (32) is in threaded connection with the sleeve (3), one end of the threaded rod (32) penetrates through the side wall of the groove (14) and is inserted into the accommodating groove (12), and a clamping groove (231) for clamping the end part of the threaded rod (32) is formed in the side wall of the mounting plate (23);
and the driving device is used for generating acting force to drive the sleeve (3) to rotate.
2. The diesel generator set with the external oil tank as set forth in claim 1, wherein: the driving device comprises a bevel gear ring (31) coaxially sleeved on the sleeve (3), a rotating rod (5) is arranged in the groove (14) along the length direction of the base (1), a supporting plate (142) used for installing the rotating rod (5) is arranged in the groove (14), and the rotating rod (5) penetrates through the supporting plate (142) and is rotatably connected with the supporting plate (142);
one end of the rotating rod (5) is provided with a transition bevel gear (51) which is meshed with the bevel gear ring (31);
the other end of dwang (5) runs through the lateral wall of recess (14) and is connected with and is used for driving dwang (5) pivoted drive assembly.
3. The diesel generator set with the external oil tank as set forth in claim 2, wherein: the driving assembly comprises a rotating handle (52) arranged at the end part of the rotating rod (5).
4. The diesel generator set with the external oil tank as set forth in claim 2, wherein: the driving assembly comprises driven bevel gears (53) arranged at the end parts of the rotating rods (5) and driving bevel gears (61) meshed with the driven bevel gears (53), the two driving bevel gears (61) are jointly sleeved on the same connecting rod (6), and the ends of the two driving bevel gears (61) with larger diameters are oppositely arranged;
the connecting rod (6) is arranged along the width direction of the base (1), a connecting plate (15) for mounting the connecting rod (6) is arranged on the side wall of the base (1), and the connecting rod (6) is rotatably connected with the connecting plate (15);
the device also comprises a driving piece for driving the rotating rod (5) to rotate.
5. The diesel generator set with the external oil tank as set forth in claim 4, wherein: the driving part comprises a rotating handle (62) arranged at one end of the rotating rod (5).
6. The diesel generator set with the external oil tank as set forth in claim 1, wherein: the top surface of base (1) is equipped with direction (13) that communicate in holding tank (12) along the length direction of base (1), holding tank (12) are located between generating set body (11) and direction (13).
7. The diesel generator set with the external oil tank as set forth in claim 6, wherein: and a protective pad (121) is arranged on the side wall of the accommodating groove (12) opposite to the guide surface (13).
8. The diesel generator set with the external oil tank as set forth in claim 1, wherein: the external oil tank (2) is provided with a handle (22).
CN202020101899.7U 2020-01-16 2020-01-16 Diesel generating set with external oil tank Expired - Fee Related CN211474251U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020101899.7U CN211474251U (en) 2020-01-16 2020-01-16 Diesel generating set with external oil tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020101899.7U CN211474251U (en) 2020-01-16 2020-01-16 Diesel generating set with external oil tank

Publications (1)

Publication Number Publication Date
CN211474251U true CN211474251U (en) 2020-09-11

Family

ID=72380114

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020101899.7U Expired - Fee Related CN211474251U (en) 2020-01-16 2020-01-16 Diesel generating set with external oil tank

Country Status (1)

Country Link
CN (1) CN211474251U (en)

Similar Documents

Publication Publication Date Title
CN211474251U (en) Diesel generating set with external oil tank
CN201588809U (en) Coupling shaft device inside pump body
CN201690160U (en) Cable bending straightener
CN213817606U (en) Protective housing for AC-DC power supply
CN220711152U (en) Overvoltage protection component for high-power new energy source
CN214488682U (en) Scroll rewinding device
CN220653158U (en) Concealed motor rotor disassembling tool
CN215800496U (en) Liquid replenishing box for public washing machine
CN214142674U (en) Spindle bearing maintenance equipment of chemical fiber two-for-one twister
CN217300758U (en) Precise pneumatic control mechanism
CN217225354U (en) Coupler disassembling tool set
CN210997373U (en) Tool for disassembling and assembling core package of double-cylinder multistage centrifugal pump
CN214787786U (en) Turbine generator flow guide structure for wireless drilling instrument in petroleum drilling
CN213592132U (en) Valve seat welding positioning structure
CN220446364U (en) Dismounting device for foot roller bearing seat
CN213229844U (en) Alcohol-based fuel movable anti-collision ton barrel
CN219924586U (en) Special cutter for boring of stern shaft tube
CN201824176U (en) Steam cylinder body fixing frame
CN215617898U (en) Automobile engine assembly disassembling platform
CN214418671U (en) Core pulling tool for main water feeding pump of nuclear power plant
CN219120461U (en) Novel rear combination lamp protection device of loader
CN213106635U (en) Frock is demolishd to circulating water pump bearing body
CN221188177U (en) Dilatation formula storehouse that charges
CN221609668U (en) Support frame of four inner cylinders
CN220428578U (en) Clean structure is used in cardboard cutting production

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20200911