CN220706197U - Anti-loosening structure for guide bearing bush strut screw - Google Patents
Anti-loosening structure for guide bearing bush strut screw Download PDFInfo
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- CN220706197U CN220706197U CN202322493475.6U CN202322493475U CN220706197U CN 220706197 U CN220706197 U CN 220706197U CN 202322493475 U CN202322493475 U CN 202322493475U CN 220706197 U CN220706197 U CN 220706197U
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- 238000009434 installation Methods 0.000 abstract description 6
- 239000011295 pitch Substances 0.000 description 27
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The utility model relates to the technical field of hydraulic generator bearing bush support anti-loosening, in particular to a guide bearing bush support screw anti-loosening structure, which comprises a guide bearing bush, a support screw, a support ring, a locking device and a fastening piece matched with the support screw, wherein the fastening piece is a nut or an anti-loosening bolt; the support ring is provided with a screw hole matched with the pillar screw, one end of the pillar screw is matched with the guide bearing bush, and the other end of the pillar screw is matched with the support ring; the locking device comprises a locking plate movably connected with the supporting ring, and the locking plate is provided with a clamping groove matched with the fastening piece and used for clamping the fastening piece and stopping the fastening piece. Through this locking structure, can effectively solve the locking problem of guide bearing supporting structure, installation adjustment that again can be convenient.
Description
Technical Field
The utility model relates to the technical field of support looseness prevention of guide bearing shoes of hydraulic generators, in particular to a support screw looseness prevention structure of a guide bearing shoe.
Background
The generator guide bearing generally adopts a multi-tile distributed structure, and the support of the guide tiles often adopts a strut screw structure with good rigidity. When the motor encounters impact load, the eccentric magnetic pulling force of the unit is increased instantaneously, so that the radial force born by one or more guide shoes on the side is increased, the locking structure of the strut screw is at failure risk under the influence of the impact force, the strut screw of the guide bearing is loosened, the gap of the guide shoes is increased, the swing degree of the shaft is increased, and long-term safe and stable operation of the unit is not facilitated.
The existing guide bearing bush support screw structure mainly comprises the following forms: 1. the support screw adopts threads with uniform specification, the support ring is radially provided with a counter bore, the sleeve with internal threads is embedded in the counter bore of the support ring, the sleeve is fixed with the support seat by adopting a set screw, the support screw is screwed into the sleeve during installation, the lock nut is screwed down after the support screw is screwed to a required position, finally the lock nut is fixed, the requirement of a screw sleeve structure on the machining precision is high, two matching surfaces between the sleeve and the support ring are more in the guide shoe support structure, the difficulty of preventing loosening of the support screw is increased by the matching surfaces, looseness is easy to generate between the sleeve and the support ring, the reliability of the double-nut locking structure with the threads with the same specification is low, and the support screw is difficult to ensure not to loosen; 2. the pillar screw adopts the screw thread of unifying the specification, and the radial screw that opens of holding collar, and the pillar screw screws in the holding collar during installation, screws up lock nut after screwing up to the required position, fixes lock nut at last, and the reliability of same specification screw thread double nut locking structure is low, exists the risk that the pillar screw is not hard up.
In the prior art, a Chinese patent document with publication number of CN202118079U and publication date of 2012, 01, 18 is proposed, and the technical scheme disclosed in the patent document is as follows: a thread connection anti-loose structure consists of a bolt, a connecting nut, a locking nut and a stop washer. The bolt is provided with a large thread and a small thread, the large thread part and the connecting nut are screwed together to play a role in fastening, and the small thread part and the locking nut are screwed together to play a role in preventing looseness. The two threads have the same sense of rotation (usually right-handed) but different pitches, the pitch of the small thread portions being smaller than the pitch of the large thread portions. The nominal diameter of the small thread part is smaller than that of the large thread part, so that the connecting nut can be conveniently screwed in.
In the practical use process, the following problems can occur:
in the technical scheme, a stop washer is adopted between the connecting nut and the locking nut, and the stop structure is mostly suitable for bolts and nuts with small diameters and is not suitable for guide bearing pillar screws. Because the hydraulic generator guide bearing support is required by the structure and the stress, the hydraulic generator guide bearing support usually adopts large-diameter threads, the large-diameter threads need larger stopping force, and if the hydraulic generator guide bearing support adopts a traditional stop washer structure, the thickness and the size of the stop washer are large, and the high-rigidity washer is not beneficial to locking flanging and the operation of multiple adjustment of the guide bearing support.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a guide bearing bush strut screw anti-loosening structure which can effectively solve the problem of loosening prevention of a guide bearing supporting structure and can be conveniently installed and adjusted.
The utility model is realized by adopting the following technical scheme:
the anti-loosening structure for the pillar screw of the guide bearing bush comprises the guide bearing bush, the pillar screw, a supporting ring, a locking device and a fastener used for being matched with the pillar screw, wherein the fastener is a nut or an anti-loosening bolt; the support ring is provided with a screw hole matched with the pillar screw, one end of the pillar screw is matched with the guide bearing bush, and the other end of the pillar screw is matched with the support ring; the locking device comprises a locking plate movably connected with the supporting ring, and the locking plate is provided with a clamping groove matched with the fastening piece and used for clamping the fastening piece and stopping the fastening piece.
The locking plate is connected with the support ring through a locking bolt.
The locking plate is provided with an arc waist-shaped hole matched with the locking bolt.
The strut screw is provided with an external thread and an internal thread, the pitch of the external thread is different from that of the internal thread, and the screwing directions of the threads are opposite; the fastening piece is a locking bolt with a reverse rotation direction, the locking bolt with the reverse rotation direction and the screw hole are respectively matched with the internal screw thread and the external screw thread, and the supporting ring is pressed more tightly with the locking bolt with the reverse rotation direction when the strut screw rotates outwards.
And a gasket is further arranged between the locking plate and the supporting ring.
The post screw comprises a first thread section and a second thread section which are connected, wherein the diameter of the first thread section is larger than that of the second thread section.
The pitches of the first thread section and the second thread section are different; the fastener is a nut, and the nut and the screw hole are respectively matched with the first thread section and the second thread section and are used for pressing and tightening the support ring and the nut when the strut screw rotates outwards.
The screw threads of the first screw thread section and the second screw thread section are opposite in screwing direction, the fastening piece is a nut, the nut and the screw hole are respectively matched with the first screw thread section and the second screw thread section, and the nut and the supporting ring move in opposite directions when the pillar screw outwards rotates, and the supporting ring is pressed more tightly with the nut.
The pillar screw is provided with an outer hexagon or a parallel surface.
Compared with the prior art, the utility model has the beneficial effects that:
1. in the utility model, the locking plate connected with the supporting ring is used for clamping the fastening piece, the limit locking effect on the fastening piece is better, and when the conventional stop washer is applied to the guide bearing bush, the guide bearing support of the hydraulic generator usually adopts large-diameter threads due to the structural and stress requirements, the thickness and the size of the stop washer are larger, and the rigidity of the washer is too large to be beneficial to locking and turning over and multiple installation and adjustment of the guide bearing support structure.
According to the utility model, the supporting ring screw sleeve structure is eliminated, the matching surface in the supporting system is reduced, and the structure is simpler and more stable.
2. According to the utility model, the arc waist-shaped holes are arranged, so that the angles of the clamping grooves on the locking plate can be adjusted according to different appearance states of the fastening pieces, the locking effect is better, and the locking plate is connected with the supporting ring, so that the locking plate is more flexible to use.
3. In the utility model, the pitches of the external thread and the internal thread on the strut screw are different, and the threads are opposite in rotation direction, so that the problem of loosening of the strut screw structure is conveniently and effectively avoided.
4. According to the utility model, the strut screw adopts a segmented thread structure, and the problem of loosening of the strut screw structure is effectively avoided by utilizing different rotation directions or pitches of the segmented threads, so that the risk of increasing the swing degree of the guide shoe gap caused by loosening of the strut screw is avoided, and the safe and stable operation of the generator set is ensured.
5. The pillar screw is provided with an outer hexagon or a parallel surface, which is convenient for the operation of the spanner.
Drawings
The utility model will be described in further detail with reference to the drawings and detailed description, wherein:
FIG. 1 is a schematic cross-sectional view of one embodiment of the present utility model;
FIG. 2 is a schematic cross-sectional view of another embodiment of the present utility model;
FIG. 3 is a schematic side view of FIG. 1 or FIG. 2;
FIG. 4 is a schematic cross-sectional view of another embodiment of the present utility model;
FIG. 5 is a schematic side elevational view of FIG. 4;
FIG. 6 is a schematic cross-sectional view of another embodiment of the present utility model;
FIG. 7 is a schematic cross-sectional view of the support ring of FIG. 6;
FIG. 8 is a schematic view of the structure of the locking plate of the present utility model;
FIG. 9 is a schematic view of a pillar screw according to the present utility model;
FIG. 10 is a schematic view of another post screw according to the present utility model;
FIG. 11 is a schematic view of a post screw according to another embodiment of the present utility model;
the marks in the figure:
1. the guide bearing bush, 2, the pillar screw, 3, the nut, 4, the locking plate, 5, the locking bolt, 6, the supporting ring, 7, the locking washer, 8, the washer, 9, the kidney-shaped hole, 10, clamping grooves, 11, first thread sections, 12, second thread sections, 13, external hexagonal, 14, lockbolts, 15, external threads, 16 and internal threads.
Detailed Description
Example 1
As a basic embodiment of the present utility model, the present utility model includes a guide bearing bush stay screw locking structure including a guide bearing bush 1, a stay screw 2, a support ring 6, a locking means, and a fastener for cooperating with the stay screw 2, the fastener being a nut 3 or a locking bolt 14. The support ring 6 is provided with a screw hole matched with the support screw 2, one end of the support screw 2 is matched with the guide bearing bush 1, and the other end is matched with the support ring 6. The locking device comprises a locking plate 4 movably connected with a supporting ring 6. The locking plate 4 is provided with a clamping groove 10 matched with the fastening piece and used for clamping the fastening piece for stopping the fastening piece.
In use, the strut screw 2 is screwed into the support ring 6, and the strut screw 2 is adjusted to adjust the clearance of the guide bearing bush 1 to a prescribed position. The post screw 2 is locked against rotation, the nut 3 or the lockbolt 14 is screwed in, and the nut 3 or the lockbolt 14 is screwed in. The head of the nut 3 or the lockbolt 14 is clamped by the locking plate 4, and then the locking plate 4 is connected with the supporting ring 6.
Example 2
As a further preferred embodiment of the present utility model, referring to fig. 1 and 3 of the specification, the present utility model comprises a guide bearing bush post screw locking structure, which is a basic double-pitch structure, comprising a guide bearing bush 1, a post screw 2, a support ring 6, a locking device and a fastener, wherein the fastener is a nut 3. Referring to fig. 9 of the drawings, the post screw 2 includes a first thread segment 11 and a second thread segment 12 connected. Further, the post screw 2 is provided with an external hexagon 13 which is convenient for the operation of a spanner. The first thread segment 11 adopts a thread with a large diameter and a small pitch, and the second thread segment 12 adopts a thread with a small diameter and a large pitch. The nut 3 is matched to the first thread segment 11, i.e. the thread specification of the nut 3 corresponds to the specification of the first thread segment 11. The support ring 6 is radially provided with a screw hole, and the specification of the screw hole is consistent with that of the second thread section 12. One end of the pillar screw 2 is matched with the guide bearing bush 1, and the other end is matched with the supporting ring 6.
The locking means is used for locking the nut 3, and comprises a locking plate 4, a locking bolt 5 and a locking washer 7. Specifically, the locking plate 4 is provided with a clamping groove 10 matched with the nut 3 and used for clamping the nut 3. The locking plate 4 is provided with an arc waist-shaped hole 9 which is used for being matched with the locking bolt 5 to fix the locking plate 4 on the end face of the supporting ring 6. Further, a locking washer 7 is further arranged between the locking bolt 5 and the locking plate 4.
In the installation, the nut 3 is first screwed onto the first thread segment 11. The second thread section 12 of the post screw 2 is screwed into the radial screw hole of the support ring 6, and the diameter of the first thread section 11 is larger than that of the second thread section 12 in order to facilitate the installation of the nut 3. The adjustment post screw 2 adjusts the clearance of the guide bearing bush 1 to a prescribed position. The post screw 2 is blocked from rotating, the nut 3 is screwed down, and the nut 3 and the support ring 6 are abutted together. The nut 3 is caught by the locking plate 4, and the locking bolt 5 is tightened to lock the locking plate 4. The locking bolt 5 is locked with a locking washer 7.
If the strut screw 2 rotates outwards for one turn, the supporting ring 6 moves inwards by one pitch relative to the strut screw 2, the nut 3 also moves inwards by one pitch relative to the strut screw 2, and since the pitch of the second thread section 12 is larger than that of the first thread section 11, the relative displacement between the strut screw 2 and the supporting ring 6 is larger than that between the strut screw 2 and the nut 3, so that the relative distance between the supporting ring 6 and the nut 3 becomes smaller, the mutual extrusion between the supporting ring 6 and the nut 3 becomes more and more serious, and the strut screw 2 is prevented from loosening outwards. The principle that the moving distance is different due to different pitches by utilizing the double-pitch threads effectively ensures that the strut screw 2 cannot loosen, ensures safe and stable operation of the generator set, and avoids the risk that the guide shoe gap is enlarged and the swing degree is increased due to loosening of the strut screw 2.
Example 3
As a preferred embodiment of the utility model, the utility model comprises a guide bearing bush support screw locking structure which is of a positive and negative thread structure and comprises a guide bearing bush 1, a support screw 2, a support ring 6, a locking device and a fastening piece, wherein the fastening piece is a nut 3. The post screw 2 comprises a first thread segment 11 and a second thread segment 12 connected, the diameter of the first thread segment 11 being larger than the diameter of the second thread segment 12. The support ring 6 is provided with a screw hole matched with the second thread section 12, one end of the support column screw 2 is matched with the guide bearing bush 1, and the other end is matched with the support ring 6. The nut 3 is matched to the first thread segment 11.
The locking device comprises a locking plate 4 movably connected with a supporting ring 6. Specifically, the locking plate 4 is connected with the support ring 6 through a locking bolt 5. The locking plate 4 is provided with a clamping groove 10 matched with the nut 3 and used for clamping the nut 3, and the clamping groove is used for enabling the nut 3 to abut against the support ring 6. In order to achieve a better anti-loosening effect, the first thread segment 11 and the second thread segment 12 are threaded in opposite directions.
If the strut screw 2 rotates outwards for one turn, the supporting ring 6 moves inwards by one pitch relative to the strut screw 2, and the nut 3 moves outwards by one pitch relative to the strut screw 2, so that the relative distance between the supporting ring 6 and the nut 3 becomes smaller, the supporting ring 6 and the nut 3 are pressed tightly and tightly, and the strut screw 2 is prevented from loosening outwards.
Example 4
As a further preferred embodiment of the utility model, the utility model comprises a guide bearing bush support screw locking structure which is a double-pitch back locking structure, and referring to fig. 2 and 3 of the specification, the guide bearing bush locking structure comprises a guide bearing bush 1, a support screw 2, a support ring 6, a locking device and a fastening piece, wherein the fastening piece is a nut 3. Referring to fig. 10 of the specification, the pillar screw 2 includes a first thread segment 11 and a second thread segment 12 connected, wherein the first thread segment 11 adopts a large-diameter, small-pitch thread, and the second thread segment 12 adopts a small-diameter, large-pitch thread. The nut 3 is matched with the second thread segment 12, i.e. the thread specification of the nut 3 is in accordance with the specification of the second thread segment 12. The support ring 6 is radially provided with a screw hole matched with the first thread section 11, and the thread specification of the screw hole is consistent with that of the first thread section 11. One end of the pillar screw 2 is matched with the guide bearing bush 1, and the other end is matched with the supporting ring 6.
Further, the pillar screw 2 is provided with a parallel surface which is convenient for the operation of a spanner.
The locking means are used for locking the nut 3. Specifically, the locking means includes a locking plate 4 and a locking bolt 5. The locking plate 4 is provided with an arc waist-shaped hole 9 matched with the locking bolt 5, and the bottom is also provided with a clamping groove 10 matched with the nut 3 and used for clamping the nut 3. The locking plate 4 is connected with the support ring 6 through a locking bolt 5.
When the support ring is installed, the first thread section 11 of the support screw 2 is screwed into the radial threaded hole of the support ring 6, the nut 3 is screwed onto the second thread section 12, and the support screw 2 is adjusted to adjust the clearance of the guide bearing bush 1 to a specified position. The post screw 2 is blocked from rotating, the nut 3 is screwed down, and the nut 3 and the support ring 6 are abutted together. The nut 3 is caught by the locking plate 4, and the locking bolt 5 is tightened to lock the locking plate 4.
After the nut 3 is locked, if the pillar screw 2 rotates outwards for one circle, the nut 3 and the supporting ring 6 respectively move for one screw pitch, but the movement amount of the nut 3 relative to the pillar screw is larger than that of the supporting ring and the pillar screw, at this time, the nut 3 and the supporting ring 6 are pressed more tightly, the rotation of the pillar screw 2 is effectively prevented, and the problem of loosening of the structure of the pillar screw 2 is avoided.
Example 5
As another preferred embodiment of the present utility model, referring to fig. 4 and 5, the present utility model includes a locking structure for a pillar screw of a guide bearing bush, which is a back bolt structure with a front and back screw, and includes a guide bearing bush 1, a pillar screw 2, a supporting ring 6, a locking device and a fastener. The fastener is a counter-rotating lockbolt 14. One end of the pillar screw 2 is matched with the guide bearing bush 1, and the other end is matched with the supporting ring 6. Specifically, referring to fig. 11 of the specification, the post screw 2 includes an external thread 15 and an internal thread 16, the pitch of the external thread 15 is smaller than that of the internal thread 16, and the threads of the external thread 15 and the internal thread 16 are opposite in rotation. Further, the post screw 2 is provided with an external hexagon 13 which is convenient for the operation of a spanner. The support ring 6 is provided with a screw hole matched with the external thread 15, namely, the screw specification of the screw hole is consistent with that of the external thread 15. The counter-rotating lockbolt 14 mates with internal threads 16.
The locking device comprises a locking plate 4, and referring to fig. 8 of the specification, a waist-shaped hole 9 which is in arc shape is arranged on the locking plate 4, and the locking plate 4 is connected with the end face of the supporting ring 6 through a locking bolt 5. The bottom of the locking plate 4 is also provided with a clamping groove 10 which is matched with the head of the anti-rotation locking bolt 14 and is used for clamping the anti-rotation locking bolt 14. A gasket 8 is also arranged between the locking plate 4 and the support ring 6. A locking washer 7 is also arranged between the locking bolt 5 and the locking plate 4. Referring to fig. 6 of the specification and fig. 7 of the specification, the washer 8 may be omitted when the support ring 6 is a stepped hole.
When the bearing bush is mounted, the strut screw 2 is screwed into the support ring 6, and the gap between the guide bearing bush 1 is adjusted to a prescribed position by adjusting the strut screw 2. The stay screw 2 is locked against rotation, and the anti-rotation lock bolt 14 is screwed in from the outside of the support ring 6, and the anti-rotation lock bolt 14 is tightened. The locking plate 4 is clamped by the locking plate 4, and the locking bolt 5 is screwed to fix the locking plate 4.
If the strut screw 2 rotates outwards for one turn, the supporting ring 6 moves inwards by one screw pitch relative to the strut screw 2, the screw pitch of the anti-rotation check bolt 14 is increased by one screw pitch, and the anti-rotation check bolt 14 and the supporting ring 6 are pressed more tightly because the screw pitch of the anti-rotation check bolt 14 is larger than the screw pitch of the external screw thread 15 and the screw thread is opposite in rotation direction, so that the rotation of the strut screw 2 is effectively prevented, and the problem of loosening of the structure of the strut screw 2 is avoided.
In view of the foregoing, it will be appreciated by those skilled in the art that, after reading the present specification, various other modifications can be made in accordance with the technical scheme and concepts of the present utility model without the need for creative mental efforts, and the modifications are within the scope of the present utility model.
Claims (9)
1. A guide bearing bush pillar screw locking structure which characterized in that: the anti-loosening device comprises a guide bearing bush (1), a strut screw (2), a supporting ring (6), a locking device and a fastener used for being matched with the strut screw (2), wherein the fastener is a nut (3) or a locking bolt (14); the support ring (6) is provided with a screw hole matched with the pillar screw (2), one end of the pillar screw (2) is matched with the guide bearing bush (1), and the other end of the pillar screw is matched with the support ring (6); the locking device comprises a locking plate (4) movably connected with the supporting ring (6), and a clamping groove (10) matched with the fastening piece and used for clamping the fastening piece is arranged on the locking plate (4) and used for stopping the fastening piece.
2. The guide bearing bush support screw locking structure according to claim 1, wherein: the locking plate (4) is connected with the supporting ring (6) through a locking bolt (5).
3. The guide bearing bush support screw locking structure according to claim 2, wherein: the locking plate (4) is provided with an arc waist-shaped hole (9) matched with the locking bolt (5).
4. A guide bearing bush support screw anti-loosening structure as claimed in claim 1 or claim 3, wherein: the strut screw (2) is provided with an external thread (15) and an internal thread (16), wherein the pitch of the external thread (15) is different from that of the internal thread (16) and the threads are opposite in rotation direction; the fastening piece is a locking bolt (14) with a reverse rotation direction, the locking bolt (14) with the reverse rotation direction and the screw hole are respectively matched with the internal screw thread (16) and the external screw thread (15), and the locking bolt is used for pressing and tightening the supporting ring (6) and the locking bolt (14) with the reverse rotation direction when the strut screw (2) rotates outwards.
5. The guide bearing bush support screw locking structure according to claim 4, wherein: a gasket (8) is arranged between the locking plate (4) and the supporting ring (6).
6. A guide bearing bush support screw anti-loosening structure as claimed in claim 1 or claim 3, wherein: the strut screw (2) comprises a first thread section (11) and a second thread section (12) which are connected, wherein the diameter of the first thread section (11) is larger than that of the second thread section (12).
7. The guide bearing bush support screw locking structure according to claim 6, wherein: the pitch of the first thread section (11) and the second thread section (12) are different; the fastening piece is a nut (3), the nut (3) and the screw hole are respectively matched with the first screw thread section (11) and the second screw thread section (12), and the fastening piece is used for pressing and tightening the support ring (6) and the nut (3) when the strut screw (2) rotates outwards.
8. The guide bearing bush support screw locking structure according to claim 6, wherein: the screw threads of the first screw thread section (11) and the screw threads of the second screw thread section (12) are opposite in screwing direction, the fastening piece is a nut (3), the nut (3) and the screw hole are matched with the first screw thread section (11) and the second screw thread section (12) respectively, and when the strut screw (2) rotates outwards, the nut (3) and the supporting ring (6) move in opposite directions, and the supporting ring (6) and the nut (3) are pressed more tightly.
9. The guide bearing bush support screw locking structure according to claim 1, wherein: the pillar screw (2) is provided with an outer hexagon (13) or a parallel surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322493475.6U CN220706197U (en) | 2023-09-14 | 2023-09-14 | Anti-loosening structure for guide bearing bush strut screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322493475.6U CN220706197U (en) | 2023-09-14 | 2023-09-14 | Anti-loosening structure for guide bearing bush strut screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220706197U true CN220706197U (en) | 2024-04-02 |
Family
ID=90437590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322493475.6U Active CN220706197U (en) | 2023-09-14 | 2023-09-14 | Anti-loosening structure for guide bearing bush strut screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220706197U (en) |
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2023
- 2023-09-14 CN CN202322493475.6U patent/CN220706197U/en active Active
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