CN114991250B - Toothholder with protection function - Google Patents
Toothholder with protection function Download PDFInfo
- Publication number
- CN114991250B CN114991250B CN202210798055.6A CN202210798055A CN114991250B CN 114991250 B CN114991250 B CN 114991250B CN 202210798055 A CN202210798055 A CN 202210798055A CN 114991250 B CN114991250 B CN 114991250B
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- CN
- China
- Prior art keywords
- fixed
- block
- groove
- tooth tip
- mounting 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.)
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- 238000009434 installation Methods 0.000 claims description 17
- 230000000694 effects Effects 0.000 claims description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
- E02F9/2808—Teeth
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
- E02F9/2808—Teeth
- E02F9/2816—Mountings therefor
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
- E02F9/2808—Teeth
- E02F9/2816—Mountings therefor
- E02F9/2833—Retaining means, e.g. pins
- E02F9/2841—Retaining means, e.g. pins resilient
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Component Parts Of Construction Machinery (AREA)
Abstract
The invention provides a tooth holder with a protection function, which comprises a base fixed on an excavator, wherein a mounting sleeve is rotationally arranged on the base, a tooth tip is sleeved in the mounting sleeve, a fixing piece for fixing the tooth tip is arranged on the base, the base comprises a fixing block, one end of the fixing block is fixed on the excavator, and a connecting plate which is symmetrically distributed is fixed at the other end of the fixing block. According to the tooth holder disclosed by the invention, the mounting sleeve is rotated to enable the opening of the tooth holder to be positioned at one side, the tooth tip can be mounted in or taken out of the mounting sleeve, after the mounting sleeve is mounted in, the opening of the mounting sleeve is rotated to the lower part of the base, the rotation of the gear is controlled by the rotation driving piece, so that the first clamping block is controlled to be clamped into the clamping groove, the simultaneous limiting of the mounting sleeve and the tooth tip is realized, and when the excavator is used for excavating, the first clamping block is separated from the clamping groove only when the driving piece rotates to enable the first clamping block to be separated from the clamping groove, the mounting sleeve is positioned at one side of the opening of the mounting sleeve, and meanwhile, the tooth tip is required to be withdrawn from the mounting sleeve, so that the tooth tip can be separated, and therefore, the tooth holder greatly reduces the probability of self-falling of the tooth tip.
Description
Technical Field
The invention relates to a tooth holder, in particular to a tooth holder with a protection function.
Background
The excavator bucket tooth is an important part on the excavator, is similar to teeth of a person, is also a vulnerable part, and is a combined bucket tooth consisting of a tooth holder and a tooth tip, and the tooth holder and the tooth tip are connected through a pin shaft. Because the worn and failed part of the bucket tooth is the tooth tip, the tooth tip is only required to be replaced.
However, once the pin shaft of the conventional tooth holder of the excavator falls off, the tooth tip falls off, so that the tooth tip is easily lost in the process of excavating the excavator, and the problem is not solved, so that the tooth holder with the protection function is provided.
Disclosure of Invention
The invention aims to provide a tooth holder with a protection function, which is characterized in that an opening of a mounting sleeve is positioned at one side by rotating the mounting sleeve, a tooth tip can be mounted in or removed from the mounting sleeve, after the mounting sleeve is mounted, the opening of the mounting sleeve is rotated below a base, a gear is controlled to rotate by rotating a driving piece, so that a first clamping block is controlled to be clamped into a clamping groove, the mounting sleeve and the tooth tip are simultaneously limited, when an excavator excavates, the tooth tip can be caused to fall off only when the driving piece rotates to enable the first clamping block to be separated from the clamping groove, the mounting sleeve is positioned at one side of the opening of the mounting sleeve, and the tooth tip is required to be withdrawn from the mounting sleeve, so that the probability of self-falling of the tooth tip is greatly reduced; through setting up first elastic component in the below of first block for there is certain buffering to the tooth point when the excavator excavates, increases its life.
The aim of the invention can be achieved by the following technical scheme:
The tooth holder with the protection function comprises a base fixed on an excavator, a mounting sleeve is rotationally arranged on the base, a tooth tip is sleeved in the mounting sleeve, and a fixing piece for fixing the tooth tip is arranged on the base.
The base comprises a fixed block, one end of the fixed block is fixed on the excavator, the other end of the fixed block is fixed with a symmetrically distributed connecting plate, and one end of the fixed block, which is close to the connecting plate, is provided with a groove.
The fixing plate is arranged in the groove, the annular groove is formed in the fixing plate, a first annular rotating groove is formed in the annular groove in a communicating mode, a mounting hole coaxial with the first annular rotating groove is formed in the fixing plate, and a sliding hole is formed in one side of the first annular rotating groove.
Further, the mounting includes first block, and during the tooth point installation, first block card goes into the block inslot, is fixed with first lead screw and slide bar on the first block, and first lead screw runs through the mounting hole, and the slide bar is located the slide hole and slides, and the mounting still includes the nut with first lead screw complex, is connected with annular rotating block on the nut, annular rotating block is located first annular rotating inslot and rotates.
Further, a first rotating connecting hole is formed in the connecting plate.
The installation sleeve comprises a sleeve body, one end of the sleeve body is a shrinkage opening, the two ends of the sleeve body are both fixed with first rotating shafts, and the installation sleeve is matched with the first rotating connecting holes through the first rotating shafts and is positioned on the base to rotate.
Further, the tooth point comprises a tooth point body, a clamping groove is formed in the tooth point body, the tooth point is sleeved in the sleeve body, and the tip of the tooth point extends out of the shrinkage opening of the installation sleeve.
Further, the fixed cover of outer wall of nut is equipped with the gear, and the cover is equipped with the rack with gear engagement on the fixed plate, and the one end of rack is equipped with the screw hole, and the mounting is still including being used for driving the gliding driving piece of rack, and the outer wall of fixed block is equipped with the guard piece, and one side that first block is close to the installation cover is fixed with first elastic component.
Further, a second rotating connecting hole communicated with the groove is formed in one side of the fixed block.
The driving piece is including being located the second rotation connecting hole internal rotation's second axis of rotation, and the both ends of second axis of rotation all are equipped with the stopper, are fixed with on the stopper of second axis of rotation one end with screw hole complex second lead screw, are equipped with the sliding tray on the stopper of the other end.
The invention has the beneficial effects that:
1. According to the tooth holder, the mounting sleeve is rotated to enable the opening of the tooth holder to be located at one side, the tooth tip can be mounted in or removed from the mounting sleeve, after the tooth holder is mounted in, the opening of the mounting sleeve is rotated to the lower side of the base, the rotation of the gear is controlled through the rotation driving piece, so that the first clamping block is controlled to be clamped into the clamping groove, the simultaneous limiting of the mounting sleeve and the tooth tip is realized, when the excavator is used for excavating, the first clamping block is separated from the clamping groove only when the driving piece is rotated, the mounting sleeve is positioned to one side of the opening of the mounting sleeve, and meanwhile the tooth tip needs to be withdrawn from the mounting sleeve, so that the tooth tip can be separated, and the tooth holder greatly reduces the probability of self-falling of the tooth tip;
2. According to the tooth holder, the first elastic piece is arranged below the first clamping block, so that the tooth tip is buffered to a certain extent when the excavator excavates, and the service life of the tooth holder is prolonged.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic view of a tooth holder according to the present invention;
FIG. 2 is an exploded view of a portion of the structure of the tooth holder of the present invention;
FIG. 3 is an exploded view of a portion of the structure of the tooth holder of the present invention;
FIG. 4 is a schematic cross-sectional view of a tooth holder according to the present invention;
FIG. 5 is a schematic view of a cross-sectional structure of a tooth holder according to the present invention;
FIG. 6 is an enlarged schematic view of the structure of FIG. 5 at B;
FIG. 7 is an enlarged schematic view of FIG. 4A;
FIG. 8 is an enlarged schematic view of the structure of FIG. 3 at C;
In the figure: 1. a base; 2. a mounting sleeve; 3. tooth tips; 4. a fixing member; 11. a fixed block; 12. a connecting plate; 13. a first rotation connection hole; 14. a groove; 16. a fixing plate; 18. an annular groove; 19. a first annular rotating groove; 17. a mounting hole; 110. a sliding hole; 15. a second rotation connection hole; 21. a sleeve body; 22. a first rotation shaft; 31. a tooth tip body; 32. a clamping groove; 41. a first engagement block; 42. a slide bar; 43. a first screw rod; 44. a screw cap; 45. an annular rotating block; 46. a gear; 47. a rack; 471. a threaded hole; 48. a driving member; 49. a guard; 410. a first elastic member; 481. a second rotation shaft; 482. a limiting block; 483. a second screw rod; 484. a sliding groove; 485. a sliding shaft; 486. a drive head; 487. a second elastic member; 488. a slot; 489. a second clamping block; 491. a protective sleeve; 492. a second annular rotating groove; 493. and (5) clamping teeth.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "open," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like indicate orientation or positional relationships, merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
The tooth holder with the protection function comprises a base 1 fixed on an excavator, as shown in fig. 1 and 2, a mounting sleeve 2 is rotatably arranged on the base 1, a tooth tip 3 is sleeved in the mounting sleeve 2, and a fixing piece 4 for fixing the tooth tip 3 is arranged on the base 1.
The base 1 comprises a fixed block 11, as shown in fig. 3-6, one end of the fixed block 11 is fixed on the excavator, the other end is fixed with a connecting plate 12 which is symmetrically distributed, a first rotating connecting hole 13 is formed in the connecting plate 12, one end, close to the connecting plate 12, of the fixed block 11 is an arc-shaped concave surface, and a cavity 14 is formed in the arc-shaped concave surface.
The cavity 14 is internally provided with a fixed plate 16, the fixed plate 16 is provided with an annular groove 18, the annular groove 18 is internally provided with a first annular rotating groove 19, the fixed plate 16 is provided with a mounting hole 17 coaxial with the first annular rotating groove 19, one side of the first annular rotating groove 19 is provided with a sliding hole 110, and one side of the fixed block 11 is provided with a second rotating connecting hole 15 communicated with the cavity 14.
The installation sleeve 2 comprises a sleeve body 21, one end of the sleeve body 21 is an arc convex surface, the other end is a shrinkage mouth, both ends of the sleeve body 21 are fixedly provided with first rotating shafts 22, and the installation sleeve 2 is matched with the first rotating connecting holes 13 through the first rotating shafts 22 and is positioned on the base 1 to rotate.
The tooth point 3 comprises a tooth point body 31, a clamping groove 32 is formed in the tooth point body 31, the tooth point 3 is sleeved in the sleeve body 21, and the tip of the tooth point 3 extends out of the shrinkage opening of the mounting sleeve 2.
The fixing piece 4 comprises a first clamping block 41, when the tooth tip 3 is installed, the first clamping block 41 is clamped into the clamping groove 32, a first screw rod 43 and a sliding rod 42 are fixed on the first clamping block 41, the first screw rod 43 penetrates through the installation hole 17, the sliding rod 42 is located in the sliding hole 110 to slide, the fixing piece 4 further comprises a nut 44 matched with the first screw rod 43, and an annular rotating block 45 is connected to the nut 44.
The annular rotating block 45 is positioned in the first annular rotating groove 19 for rotating, a gear 46 is fixedly sleeved on the outer wall of the nut 44, a rack 47 meshed with the gear 46 is sleeved on the fixing plate 16, a threaded hole 471 is formed in one end of the rack 47, the fixing piece 4 further comprises a driving piece 48 for driving the rack 47 to slide, a protecting piece 49 is arranged on the outer wall of the fixing block 11, and a first elastic piece 410 is fixed on one side, close to the mounting sleeve 2, of the first clamping block 41.
The driving member 48 includes a second rotating shaft 481 rotating in the second rotating connection hole 15, as shown in fig. 7, both ends of the second rotating shaft 481 are provided with a limiting block 482, a second screw 483 engaged with the threaded hole 471 is fixed on the limiting block 482 at one end of the second rotating shaft 481, and a sliding groove 484 is provided on the limiting block 482 at the other end.
The sliding shaft 485 is slidably disposed in the sliding groove 484, as shown in fig. 8, a driving head 486 is fixed on the sliding shaft 485, a second elastic member 487 is connected between the driving head 486 and the limiting block 482 exposed to the outside, a slot 488 for inserting a driving tool such as a screwdriver is disposed on the driving head 486, and a second engaging piece 489 is fixed on one side of the driving head 486.
The guard 49 includes the lag 491 fixed at the fixed block 11 outer wall, and the drive head 486 is located the lag 491, and the inner wall of lag 491 is equipped with second annular rotation groove 492, and one side that second annular rotation groove 492 kept away from driving piece 48 is equipped with latch 493, under the effect of second elastic component 487, and second block 489 block is on latch 493, realizes spacing to driving piece 48, after inserting driving tool such as screwdriver, compresses second elastic component 487, and second block 489 gets into second annular rotation groove 492, rotates driving tool control driving piece 48 rotation.
In practice, the installation sleeve 2 is rotated to enable the opening of the installation sleeve 2 to be located at one side, the tooth tip 3 can be installed in or removed from the installation sleeve 2, after the installation sleeve 2 is installed in, the opening of the installation sleeve 2 is rotated to the lower side of the base 1, the rotation of the gear 46 is controlled through the rotation driving piece 48, so that the first clamping block 41 is controlled to be clamped into the clamping groove 32, the simultaneous limiting of the installation sleeve 2 and the tooth tip 3 is realized, and when the excavator excavates, the tooth tip 3 can be caused to fall off only when the driving piece 48 rotates to enable the first clamping block 41 to be separated from the clamping groove 32, and the installation sleeve 2 is located at one side until the tooth tip 3 is required to be withdrawn from the installation sleeve 2, so that the tooth tip 3 can fall off automatically; by arranging the first elastic member 410 below the first engaging block 41, the tooth tip is buffered to a certain extent when the excavator excavates, and the service life of the excavator is prolonged.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims.
Claims (2)
1. The tooth holder with the protection function comprises a base (1) fixed on an excavator, and is characterized in that a mounting sleeve (2) is rotatably arranged on the base (1), a tooth tip (3) is sleeved in the mounting sleeve (2), and a fixing piece (4) for fixing the tooth tip (3) is arranged on the base (1);
The base (1) comprises a fixed block (11), one end of the fixed block (11) is fixed on the excavator, the other end of the fixed block is fixed with a symmetrically distributed connecting plate (12), and one end, close to the connecting plate (12), of the fixed block (11) is provided with a cavity (14);
A fixed plate (16) is arranged in the cavity (14), an annular groove (18) is formed in the fixed plate (16), a first annular rotating groove (19) is formed in the annular groove (18), a mounting hole (17) coaxial with the first annular rotating groove (19) is formed in the fixed plate (16), and a sliding hole (110) is formed in one side of the first annular rotating groove (19);
The fixing piece (4) comprises a first clamping block (41), when the tooth tip (3) is installed, the first clamping block (41) is clamped into the clamping groove (32), a first screw rod (43) and a sliding rod (42) are fixed on the first clamping block (41), the first screw rod (43) penetrates through the installation hole (17), the sliding rod (42) is located in the sliding hole (110) to slide, the fixing piece (4) further comprises a nut (44) matched with the first screw rod (43), an annular rotating block (45) is connected to the nut (44), and the annular rotating block (45) is located in the first annular rotating groove (19) to rotate;
the connecting plate (12) is provided with a first rotating connecting hole (13), the mounting sleeve (2) comprises a sleeve body (21), one end of the sleeve body (21) is provided with a shrinkage opening, both ends of the sleeve body (21) are fixedly provided with first rotating shafts (22), and the mounting sleeve (2) is matched with the first rotating connecting hole (13) through the first rotating shafts (22) and is positioned on the base (1) to rotate;
The tooth tip (3) comprises a tooth tip body (31), a clamping groove (32) is formed in the tooth tip body (31), the tooth tip (3) is sleeved in the sleeve body (21), and the tip of the tooth tip (3) extends out of a shrinkage opening of the mounting sleeve (2);
The outer wall of the nut (44) is fixedly sleeved with a gear (46), the fixed plate (16) is sleeved with a rack (47) meshed with the gear (46), one end of the rack (47) is provided with a threaded hole (471), the fixed part (4) further comprises a driving part (48) for driving the rack (47) to slide, the outer wall of the fixed block (11) is provided with a protection part (49), and one side, close to the mounting sleeve (2), of the first clamping block (41) is fixed with a first elastic part (410);
A second rotating connecting hole (15) communicated with the cavity (14) is formed in one side of the fixed block (11), the driving piece (48) comprises a second rotating shaft (481) which is positioned in the second rotating connecting hole (15) and rotates, limiting blocks (482) are arranged at two ends of the second rotating shaft (481), a second screw rod (483) matched with the threaded hole (471) is fixed on the limiting block (482) at one end of the second rotating shaft (481), and a sliding groove (484) is formed in the limiting block (482) at the other end;
a sliding shaft (485) is arranged in the sliding groove (484) in a sliding manner, a driving head (486) is fixed on the sliding shaft (485), a second elastic piece (487) is connected between the driving head (486) and a limiting block (482) exposed outside, a slot (488) for inserting a driving tool is arranged on the driving head (486), and a second clamping block (489) is fixed on one side of the driving head (486);
The protection piece (49) is including fixing lag (491) at fixed block (11) outer wall, driving head (486) is located lag (491), the inner wall of lag (491) is equipped with second annular rotation groove (492), one side that driving piece (48) was kept away from to second annular rotation groove (492) is equipped with latch (493), under the effect of second elastic component (487), second block (489) block is on latch (493), realize spacing to driving piece (48), after inserting the driving tool, compress second elastic component (487), second block (489) gets into second annular rotation groove (492), rotate driving tool control driving piece (48) rotation.
2. The toothholder with the protection function according to claim 1, wherein one end of the fixed block (11) close to the connecting plate (12) is an arc concave surface, and one end of the sleeve body (21) far away from the shrinkage port is an arc convex surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210798055.6A CN114991250B (en) | 2022-07-08 | 2022-07-08 | Toothholder with protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210798055.6A CN114991250B (en) | 2022-07-08 | 2022-07-08 | Toothholder with protection function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114991250A CN114991250A (en) | 2022-09-02 |
| CN114991250B true CN114991250B (en) | 2024-06-07 |
Family
ID=83020716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210798055.6A Active CN114991250B (en) | 2022-07-08 | 2022-07-08 | Toothholder with protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114991250B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207260233U (en) * | 2017-08-29 | 2018-04-20 | 南京市溧水中山铸造有限公司 | A kind of excavator bucket teeth casting |
| CN108729498A (en) * | 2018-08-16 | 2018-11-02 | 山东同其智能科技有限公司 | A kind of excavator bucket teeth being conveniently replaceable |
| CN211421228U (en) * | 2019-12-10 | 2020-09-04 | 平阴县胡庄制修厂 | Excavator excavating bucket tooth mounting structure of loader |
| CN213625812U (en) * | 2020-08-18 | 2021-07-06 | 长兴德田工程机械股份有限公司 | Bucket tooth assembly |
| CN216428399U (en) * | 2021-12-22 | 2022-05-03 | 沂南县鑫昌机械有限公司 | Excavator bucket tooth capable of adjusting direction |
| CN216586759U (en) * | 2021-09-29 | 2022-05-24 | 陕西华诚电力设备工程有限公司 | Bucket tooth convenient to tear open and trade fill prong |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6467203B2 (en) * | 1999-04-05 | 2002-10-22 | Trn Business Trust | Removable tooth assembly retention system and method |
| US20140331480A1 (en) * | 2013-05-13 | 2014-11-13 | Calvin H. WARNER | Secure Mounting of Excavation Equipment Teeth |
-
2022
- 2022-07-08 CN CN202210798055.6A patent/CN114991250B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207260233U (en) * | 2017-08-29 | 2018-04-20 | 南京市溧水中山铸造有限公司 | A kind of excavator bucket teeth casting |
| CN108729498A (en) * | 2018-08-16 | 2018-11-02 | 山东同其智能科技有限公司 | A kind of excavator bucket teeth being conveniently replaceable |
| CN211421228U (en) * | 2019-12-10 | 2020-09-04 | 平阴县胡庄制修厂 | Excavator excavating bucket tooth mounting structure of loader |
| CN213625812U (en) * | 2020-08-18 | 2021-07-06 | 长兴德田工程机械股份有限公司 | Bucket tooth assembly |
| CN216586759U (en) * | 2021-09-29 | 2022-05-24 | 陕西华诚电力设备工程有限公司 | Bucket tooth convenient to tear open and trade fill prong |
| CN216428399U (en) * | 2021-12-22 | 2022-05-03 | 沂南县鑫昌机械有限公司 | Excavator bucket tooth capable of adjusting direction |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114991250A (en) | 2022-09-02 |
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