CN115921055A - Semi-automatic type special tool for dredging accumulated coal in channel - Google Patents
Semi-automatic type special tool for dredging accumulated coal in channel Download PDFInfo
- Publication number
- CN115921055A CN115921055A CN202211657788.4A CN202211657788A CN115921055A CN 115921055 A CN115921055 A CN 115921055A CN 202211657788 A CN202211657788 A CN 202211657788A CN 115921055 A CN115921055 A CN 115921055A
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- 239000003245 coal Substances 0.000 title claims abstract description 48
- 230000001105 regulatory effect Effects 0.000 claims description 12
- 230000002457 bidirectional effect Effects 0.000 claims description 7
- 238000005457 optimization Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention discloses a semi-automatic tool special for dredging accumulated coal in a channel, which comprises a drill bit, a base and a motor base plate, wherein a shaft rod is connected inside the drill bit in a sliding manner, a first bolt is connected inside the drill bit and the shaft rod in a sliding manner, a joint bearing seat is fixedly connected to the upper end of the base, a joint bearing is installed inside the joint bearing seat, a joint bearing cover is contacted with the upper end of the joint bearing seat, a joint bearing vertical sleeve is installed inside the joint bearing, a one-way thrust ball bearing is installed inside the joint bearing vertical sleeve, and a rotating shaft is installed inside the one-way thrust ball bearing. This scheme has constituted the mediation specialized tool to the long-pending coal of channel of semi-automatic formula through parts such as design drill bit, axostylus axostyle, joint bearing, revolving axle, axis of rotation, buncher, speed regulator, but greatly reduced channel long-pending coal processing's cost, and more safe high efficiency, easy to operate has nimble handy characteristics moreover.
Description
Technical Field
The invention relates to the technical field of channel accumulated coal dredging, in particular to a semi-automatic special tool for channel accumulated coal dredging.
Background
Large factories and mines generally adopt a channel type discharging structure, such as a coal discharging ditch, an ash discharging ditch and the like. Although the coal discharge ditch equipment is provided with the air cannon and the air hammer, under the background that the fuel price is extremely high at present, more and more factories and mines begin to mix and burn high-ash high-sulfur high-cohesiveness inferior coals, and the problems of blockage of a coal discharge ditch channel, unsmooth blanking, difficulty in dredging after the coal discharge ditch is blocked, personal safety endangered in the dredging process and the like are caused. At present, the modes for cleaning accumulated coal in a coal unloading ditch mainly comprise two methods: (1) The method has the advantages that the coal grate is lifted by a crane, and the hardened accumulated coal is dug by an excavator, so that the method is high in cost and is greatly influenced by space limitation; (2) The workman gets into the inside clearance that carries out of coal unloading ditch, and this kind of clearance mode has the potential safety hazard. Therefore, there is a need to design a coal deposit blockage removing device which is safe, low in cost, easy to operate, flexible and portable.
Disclosure of Invention
The invention aims to provide a semi-automatic special tool for dredging accumulated coal in a channel, which solves the problems of high cost, insufficient safety, difficult operation and insufficient flexibility in use of the conventional tool for dredging accumulated coal in a channel.
In order to achieve the purpose, the invention provides the following technical scheme: a semi-automatic tool special for dredging accumulated coal in a channel comprises a drill bit, a base and a motor base plate, wherein a shaft rod is connected inside the drill bit in a sliding manner, a first bolt is connected inside the drill bit and the shaft rod in a sliding manner, a joint bearing seat is fixedly connected to the upper end of the base, a joint bearing is installed inside the joint bearing seat, a joint bearing cover is contacted with the upper end of the joint bearing seat, a joint bearing vertical sleeve is installed inside the joint bearing, a one-way thrust ball bearing is installed inside the joint bearing vertical sleeve, a rotating shaft is installed inside the one-way thrust ball bearing, an angular contact ball bearing is installed inside the joint bearing vertical sleeve, a rotating shaft is installed inside the angular contact ball bearing, and a vertical sleeve end cover is installed at the upper end of the joint bearing vertical sleeve;
the motor seat plate is characterized in that a shaft lever is connected in the rotating shaft in a sliding manner, a first pin shaft is connected in the shaft lever in a sliding manner, the first pin shaft is connected with the rotating shaft in a sliding manner, a rotating shaft is connected in the rotating shaft in a sliding manner, a second pin shaft is connected in the rotating shaft and the rotating shaft in a sliding manner, the right end of the motor seat plate is fixedly connected with a handrail frame, the upper end of the motor seat plate is fixedly connected with a speed regulator support, and a speed regulator is arranged on the speed regulator support;
the upper end of the motor seat plate is in contact with a speed regulating motor, a second spring washer is sleeved on the outer side of the third screw in a sliding mode and is in contact with the motor seat plate, an output shaft of the speed regulating motor is connected with a rotating shaft through a key, a screw locking retaining ring is sleeved on the outer side of the rotating shaft in a sliding mode and is connected with a locking screw through threads, the locking screw is in locking contact with the rotating shaft, and the lower end of the motor seat plate is in contact with an upper end cover;
the bidirectional thrust ball bearing is mounted on the inner side of the motor seat plate, a rotating shaft is mounted on the inner side of the bidirectional thrust ball bearing, a felt retainer ring is mounted in the motor seat plate, a shaft sleeve is mounted on the outer side of the rotating shaft, and the lower end of the shaft sleeve is in contact with a screw locking retainer ring;
and the joint bearing seat is respectively provided with a joint type pressure filling oil cup and a straight-through type pressure filling oil cup.
In order to mount the drill bit on the shaft, it is preferable that, as a tool dedicated for semi-automatic channeling accumulated coal dredging of the present invention, a first locking nut is screwed to an outer side of the first bolt, and the first locking nut is in contact with an outer surface of the drill bit.
In order to install the joint bearing cover on the joint bearing seat, the special semi-automatic tool for dredging the accumulated coal in the channel is preferably used, the first screw is connected to the inside of the joint bearing cover in a sliding mode, and the first screw is connected with the joint bearing seat through threads.
In order to ensure that the first screw is not easy to loosen, the semi-automatic tool special for dredging the accumulated coal in the ditch is preferably used, a first elastic washer is sleeved on the outer side of the first screw in a sliding mode, and the first elastic washer is in contact with the upper end of the joint bearing seat.
In order to limit the first pin shaft and the second pin shaft, the special semi-automatic tool for dredging the accumulated coal in the channel is preferred.
In order to install the speed regulating motor on the motor seat plate, the semi-automatic special tool for dredging the accumulated coal in the ditch is preferably used, the motor seat plate is internally and slidably connected with a third screw, and the third screw is in threaded connection with the speed regulating motor.
In order to mount the speed regulator on the speed regulator bracket, the semi-automatic special tool for dredging the accumulated coal in the ditch is preferably used, the speed regulator bracket is internally and slidably connected with a fourth screw, the fourth screw is slidably connected with the speed regulator, and the outer side of the fourth screw is connected with a second locking nut through threads.
In order to prevent the second screw from loosening easily, the special semi-automatic tool for dredging the accumulated coal in the channel is preferably used, the second screw is connected with the motor base plate in the upper end cover in a sliding mode, the second screw is connected with the motor base plate through threads, a first spring washer is sleeved on the outer side of the second screw in a sliding mode, and the first spring washer is in contact with the motor base plate.
Compared with the prior art, the invention has the following beneficial effects:
this scheme has constituted the mediation specialized tool to the long-pending coal of channel of semi-automatic formula through parts such as design drill bit, axostylus axostyle, joint bearing, revolving axle, axis of rotation, buncher, speed regulator, can greatly reduced the cost that the long-pending coal of channel was handled, and more safe high efficiency, easy to operate has nimble handy characteristics moreover.
Drawings
FIG. 1 is a front view of the overall structure of the present invention;
fig. 2 is a top view of fig. 1 in accordance with the present invention.
In the figure: 1. a drill bit; 2. a first bolt; 3. a first lock nut; 4. a shaft lever; 5. a knuckle bearing; 6. a base; 7. a joint bearing seat; 8. a knuckle bearing cap; 9. a first screw; 10. a first resilient gasket; 11. a joint bearing vertical sleeve; 12. a one-way thrust ball bearing; 13. a rotating shaft; 14. angular contact ball bearings; 15. vertically sleeving an end cover; 16. a first pin shaft; 17. a cotter pin; 18. a second pin shaft; 19. a rotating shaft; 20. a screw locking retainer ring; 21. an upper end cover; 22. a first spring washer; 23. a second screw; 24. a second spring washer; 25. a third screw; 26. a speed-regulating motor; 27. a speed regulator; 28. a speed regulator bracket; 29. a fourth screw; 30. a second lock nut; 31. a bidirectional thrust ball bearing; 32. a felt retainer ring; 33. a motor base plate; 34. an armrest frame; 35. a shaft sleeve; 36. a locking screw; 37. a joint type pressure filling oil cup; 38. straight-through type pressure injection oil cup.
Detailed Description
Referring to fig. 1-2, a semi-automatic tool special for dredging accumulated coal in a channel comprises a drill bit 1, a base 6 and a motor seat plate 33, wherein a shaft lever 4 is slidably connected inside the drill bit 1, a first bolt 2 is slidably connected inside the drill bit 1 and the shaft lever 4, a joint bearing seat 7 is fixedly connected at the upper end of the base 6, a joint bearing 5 is installed inside the joint bearing seat 7, a joint bearing cover 8 is contacted at the upper end of the joint bearing seat 7, a joint bearing vertical sleeve 11 is installed inside the joint bearing 5, a one-way thrust ball bearing 12 is installed inside the joint bearing vertical sleeve 11, a rotating shaft 13 is installed inside the one-way thrust ball bearing 12, an angular contact ball bearing 14 is installed inside the joint bearing vertical sleeve 11, a rotating shaft 13 is installed inside the angular contact ball bearing 14, and a vertical sleeve end cover 15 is installed at the upper end of the joint bearing vertical sleeve 11;
a shaft lever 4 is connected in the rotating shaft 13 in a sliding manner, a first pin shaft 16 is connected in the shaft lever 4 in a sliding manner, the first pin shaft 16 is connected with the rotating shaft 13 in a sliding manner, a rotating shaft 19 is connected in the rotating shaft 13 in a sliding manner, a second pin shaft 18 is connected in the rotating shaft 13 and the rotating shaft 19 in a sliding manner, a handrail frame 34 is fixedly connected at the right end of the motor seat plate 33, a speed regulator support 28 is fixedly connected at the upper end of the motor seat plate 33, and a speed regulator 27 is installed on the speed regulator support 28;
the upper end of the motor seat plate 33 is in contact with a speed regulating motor 26, the outer side of the third screw 25 is in sliding sleeve connection with a second spring washer 24, the second spring washer 24 is in contact with the motor seat plate 33, the output shaft of the speed regulating motor 26 is connected with a rotating shaft 19 through a key, the outer side of the rotating shaft 19 is in sliding sleeve connection with a screw locking check ring 20, the screw locking check ring 20 is internally connected with a locking screw 36 through threads, the locking screw 36 is in locking contact with the rotating shaft 19, and the lower end of the motor seat plate 33 is in contact with an upper end cover 21;
the inner side of the motor seat plate 33 is provided with a bidirectional thrust ball bearing 31, the inner side of the bidirectional thrust ball bearing 31 is provided with a rotating shaft 19, the motor seat plate 33 is internally provided with a felt retainer ring 32, the outer side of the rotating shaft 19 is provided with a shaft sleeve 35, and the lower end of the shaft sleeve 35 is contacted with a screw locking retainer ring 20;
the joint type pressure filling oil cup 37 and the straight-through type pressure filling oil cup 38 are respectively arranged on the joint bearing seat 7.
In this embodiment: when needs dredge the channel coal deposit, handheld base 6, start buncher 26, buncher 26 works, buncher 26's output shaft drives axis of rotation 19 and rotates, axis of rotation 19 drives axostylus axostyle 4 and rotates, axostylus axostyle 4 drives drill bit 1 and rotates, can clear up the coal deposit in the channel through drill bit 1, smash the coal cake, the work of dredging of being convenient for, through design joint bearing 5, can make drill bit 1 realize certain angle swing, make the working range of drill bit 1 extensive, relative position through adjusting shaft 4 and revolving axle 13, can adjust the position of axostylus axostyle 4, thereby the channel that can the different degree of depth is handled, can realize in the different hole sites of installing first round pin axle 16 on axostylus axostyle 4.
Through designing the drill bit 1, the shaft lever 4, the joint bearing 5, the rotating shaft 13, the rotating shaft 19, the speed regulating motor 26, the speed regulator 27 and other parts, a semi-automatic special tool for dredging the channel accumulated coal is formed, the cost of treating the channel accumulated coal can be greatly reduced, and the special tool is safer and more efficient, is easy to operate and has the characteristics of flexibility and portability.
As a technical optimization scheme of the invention, a first locking nut 3 is connected to the outer side of the first bolt 2 through threads, and the first locking nut 3 is in contact with the outer surface of the drill bit 1.
In this embodiment: by designing the first bolt 2 and the first locking nut 3, the drill bit 1 can be mounted on the shaft 4.
As a technical optimization scheme of the invention, a first screw 9 is connected inside the joint bearing cover 8 in a sliding mode, and the first screw 9 is connected with the joint bearing seat 7 through threads.
In this embodiment: the joint bearing cap 8 can be mounted on the joint bearing housing 7 by mounting the first screw 9.
As a technical optimization scheme of the present invention, a first elastic washer 10 is slidably sleeved on the outer side of the first screw 9, and the first elastic washer 10 is in contact with the upper end of the joint bearing seat 7.
In this embodiment: by installing the first elastic washer 10, the first screw 9 can be provided with an elastic function, so that the first screw 9 is not easy to loosen.
As a technical optimization scheme of the invention, a cotter 17 is connected in the first pin shaft 16 through a thread, and a cotter 17 is connected in the second pin shaft 18 through a thread.
In this embodiment: the first pin 16 and the second pin 18 can be restrained by mounting the cotter 17.
As a technical optimization scheme of the invention, a third screw 25 is connected in the motor seat plate 33 in a sliding manner, and the third screw 25 is connected with the speed regulating motor 26 through threads.
In this embodiment: the adjustable speed motor 26 can be mounted on the motor base plate 33 by mounting the third screw 25.
As a technical optimization scheme of the invention, a fourth screw 29 is slidably connected in the speed regulator bracket 28, the fourth screw 29 is slidably connected with the speed regulator 27, and a second lock nut 30 is connected to the outer side of the fourth screw 29 through threads.
In this embodiment: governor 27 can be mounted to governor bracket 28 by mounting fourth screw 29.
As a technical optimization scheme of the invention, the upper end cover 21 is connected with a second screw 23 in a sliding manner, the second screw 23 is connected with the motor seat plate 33 through threads, the outer side of the second screw 23 is sleeved with a first spring washer 22 in a sliding manner, and the first spring washer 22 is contacted with the motor seat plate 33.
In this embodiment: by installing the first spring washer 22, the second screw 23 can be made less susceptible to loosening.
The working principle is as follows: when needs dredge the channel coal deposit, handheld base 6, start buncher 26, buncher 26 works, buncher 26's output shaft drives axis of rotation 19 and rotates, axis of rotation 19 drives axostylus axostyle 4 and rotates, axostylus axostyle 4 drives drill bit 1 and rotates, can clear up the coal deposit in the channel through drill bit 1, smash the coal cake, the work of dredging of being convenient for, through design joint bearing 5, can make drill bit 1 realize certain angle swing, make the working range of drill bit 1 extensive, relative position through adjusting shaft 4 and revolving axle 13, can adjust the position of axostylus axostyle 4, thereby the channel that can the different degree of depth is handled, can realize in the different hole sites of installing first round pin axle 16 on axostylus axostyle 4.
Through designing the drill bit 1, the shaft lever 4, the joint bearing 5, the rotating shaft 13, the rotating shaft 19, the speed regulating motor 26, the speed regulator 27 and other parts, a semi-automatic special dredging tool for the channel accumulated coal is formed, the cost for treating the channel accumulated coal can be greatly reduced, and the special dredging tool is safer and more efficient, is easy to operate and has the characteristics of flexibility and portability.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a semi-automatic formula channel is long-pending coal and is dredged specialized tool, includes drill bit (1), base (6), motor bedplate (33), its characterized in that: the drill bit is characterized in that a shaft rod (4) is connected to the inside of the drill bit (1) in a sliding manner, a first bolt (2) is connected to the drill bit (1) and the shaft rod (4) in the sliding manner, a joint bearing seat (7) is fixedly connected to the upper end of a base (6), a joint bearing (5) is installed in the joint bearing seat (7), a joint bearing cover (8) is contacted with the upper end of the joint bearing seat (7), a joint bearing vertical sleeve (11) is installed in the joint bearing (5), a one-way thrust ball bearing (12) is installed in the joint bearing vertical sleeve (11), a rotating shaft (13) is installed in the one-way thrust ball bearing (12), an angular contact ball bearing (14) is installed in the joint bearing vertical sleeve (11), the rotating shaft (13) is installed in the angular contact ball bearing (14), and a vertical sleeve end cover (15) is installed at the upper end of the joint bearing vertical sleeve (11);
the electric bicycle is characterized in that a shaft lever (4) is connected in the revolving shaft (13) in a sliding manner, a first pin shaft (16) is connected in the shaft lever (4) in the sliding manner, the first pin shaft (16) is connected with the revolving shaft (13) in the sliding manner, a rotating shaft (19) is connected in the revolving shaft (13) in the sliding manner, a second pin shaft (18) is connected in the revolving shaft (13) and the rotating shaft (19) in the sliding manner, a handrail frame (34) is fixedly connected to the right end of the motor seat plate (33), a speed regulator support (28) is fixedly connected to the upper end of the motor seat plate (33), and a speed regulator (27) is installed on the speed regulator support (28);
the upper end of the motor seat plate (33) is in contact with a speed regulating motor (26), the outer side of a third screw (25) is sleeved with a second spring washer (24) in a sliding mode, the second spring washer (24) is in contact with the motor seat plate (33), an output shaft of the speed regulating motor (26) is connected with a rotating shaft (19) through a key, the outer side of the rotating shaft (19) is sleeved with a screw locking check ring (20) in a sliding mode, a locking screw (36) is connected in the screw locking check ring (20) through threads, the locking screw (36) is in locking contact with the rotating shaft (19), and the lower end of the motor seat plate (33) is in contact with an upper end cover (21);
a bidirectional thrust ball bearing (31) is mounted on the inner side of the motor seat plate (33), a rotating shaft (19) is mounted on the inner side of the bidirectional thrust ball bearing (31), a felt retainer ring (32) is mounted in the motor seat plate (33), a shaft sleeve (35) is mounted on the outer side of the rotating shaft (19), and the lower end of the shaft sleeve (35) is in contact with a screw locking retainer ring (20);
and a joint type pressure filling oil cup (37) and a straight-through type pressure filling oil cup (38) are respectively arranged on the joint bearing seat (7).
2. The semi-automatic special tool for dredging accumulated coal in a ditch according to claim 1, wherein: the outer side of the first bolt (2) is connected with a first locking nut (3) through threads, and the first locking nut (3) is in contact with the outer surface of the drill bit (1).
3. The semi-automatic special tool for dredging accumulated coal in a ditch according to claim 1, wherein: the joint bearing cover (8) is connected with a first screw (9) in a sliding mode, and the first screw (9) is connected with the joint bearing seat (7) through threads.
4. The semi-automatic special tool for dredging accumulated coal in a ditch according to claim 3, wherein: the outer side of the first screw (9) is sleeved with a first elastic washer (10) in a sliding mode, and the first elastic washer (10) is in contact with the upper end of the joint bearing seat (7).
5. The semi-automatic special tool for dredging accumulated coal in a ditch according to claim 1, wherein: a split pin (17) is connected into the first pin shaft (16) through threads, and a split pin (17) is connected into the second pin shaft (18) through threads.
6. The semi-automatic type special tool for dredging accumulated coal in a channel as claimed in claim 1, characterized in that: the motor seat plate (33) is connected with a third screw (25) in a sliding mode, and the third screw (25) is connected with the speed regulating motor (26) through threads.
7. The semi-automatic special tool for dredging accumulated coal in a ditch according to claim 1, wherein: and a fourth screw (29) is connected in the speed regulator bracket (28) in a sliding manner, the fourth screw (29) is connected with the speed regulator (27) in a sliding manner, and the outer side of the fourth screw (29) is connected with a second locking nut (30) through a thread.
8. The semi-automatic type special tool for dredging accumulated coal in a channel as claimed in claim 1, characterized in that: the sliding connection has second screw (23) in upper end cover (21), second screw (23) pass through threaded connection with motor bedplate (33), first spring washer (22) have been cup jointed in the outside slip of second screw (23), first spring washer (22) and motor bedplate (33) contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211657788.4A CN115921055A (en) | 2022-12-22 | 2022-12-22 | Semi-automatic type special tool for dredging accumulated coal in channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211657788.4A CN115921055A (en) | 2022-12-22 | 2022-12-22 | Semi-automatic type special tool for dredging accumulated coal in channel |
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| Publication Number | Publication Date |
|---|---|
| CN115921055A true CN115921055A (en) | 2023-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211657788.4A Pending CN115921055A (en) | 2022-12-22 | 2022-12-22 | Semi-automatic type special tool for dredging accumulated coal in channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115921055A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2814771A (en) * | 1953-07-14 | 1957-11-26 | Philips Corp | Shaft-positioning device |
| CN108194521A (en) * | 2018-03-02 | 2018-06-22 | 福建龙溪轴承(集团)股份有限公司 | The changeable hinged and rigidly connected thrust articulated bearing node of one kind |
| CN211690610U (en) * | 2019-12-06 | 2020-10-16 | 福建联森环保科技有限公司 | Dredging device based on pipeline blockage |
| CN213616452U (en) * | 2020-10-28 | 2021-07-06 | 无锡先导智能装备股份有限公司 | Connecting joint and press-fitting equipment |
| CN218079446U (en) * | 2022-09-26 | 2022-12-20 | 天瑞集团禹州水泥有限公司 | Drill bit for dredging pipeline |
-
2022
- 2022-12-22 CN CN202211657788.4A patent/CN115921055A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2814771A (en) * | 1953-07-14 | 1957-11-26 | Philips Corp | Shaft-positioning device |
| CN108194521A (en) * | 2018-03-02 | 2018-06-22 | 福建龙溪轴承(集团)股份有限公司 | The changeable hinged and rigidly connected thrust articulated bearing node of one kind |
| CN211690610U (en) * | 2019-12-06 | 2020-10-16 | 福建联森环保科技有限公司 | Dredging device based on pipeline blockage |
| CN213616452U (en) * | 2020-10-28 | 2021-07-06 | 无锡先导智能装备股份有限公司 | Connecting joint and press-fitting equipment |
| CN218079446U (en) * | 2022-09-26 | 2022-12-20 | 天瑞集团禹州水泥有限公司 | Drill bit for dredging pipeline |
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