CN211320166U - Battery pack and hoisting point assembly thereof - Google Patents
Battery pack and hoisting point assembly thereof Download PDFInfo
- Publication number
- CN211320166U CN211320166U CN201922394462.7U CN201922394462U CN211320166U CN 211320166 U CN211320166 U CN 211320166U CN 201922394462 U CN201922394462 U CN 201922394462U CN 211320166 U CN211320166 U CN 211320166U
- Authority
- CN
- China
- Prior art keywords
- sealing ring
- battery pack
- wall
- housing
- mounting
- 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.)
- Active
Links
Images
Classifications
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Battery Mounting, Suspending (AREA)
Abstract
The utility model relates to a battery pack and a hoisting point component thereof, wherein, the hoisting point component of the battery pack comprises an installation cylinder, a sealing ring and a fixed part; the mounting cylinder penetrates through a mounting hole of a shell of the battery pack and can be fixed with the whole vehicle through a long bolt; the sealing ring is sleeved outside the mounting cylinder, and an annular groove matched with the inner edge of the mounting hole is formed in the outer wall of the sealing ring along the circumferential direction; the outer wall of an installation cylinder is provided with an annular baffle plate, and the fixing part can be fixed on the outer wall of the installation cylinder and tightly presses the sealing ring between the fixing part and the annular baffle plate. Can guarantee the battery package with the leakproofness of whole car installation before, need not to establish auxiliary fixtures in addition for can labour saving and time saving, reduce cost during the installation.
Description
Technical Field
The utility model relates to a power battery technical field, concretely relates to battery package and hoisting point subassembly thereof.
Background
The hoisting point of battery package casing is used for with whole fixed structure of car, and to the battery package that the volume is great relatively, the middle part of casing often is equipped with the hoisting point that runs through the setting, specifically including the installation section of thick bamboo that runs through the casing, and this installation section of thick bamboo is fixed with the casing, and it can to pass the installation section of thick bamboo and fix with whole car through the stay bolt. Since the case of the battery pack needs to be sealed to prevent moisture or dust from entering the inside, a sealing process is also required between the mounting tube and the case.
In the prior art, the sealing rings are arranged on the upper side and the lower side of the shell respectively for the sealing of the hanging point, then the two sealing rings are clamped tightly through the clamping piece, and the sealing rings are attached to the installation cylinder, so that the sealing of the hanging point is realized, when the battery pack is not fixed with the whole vehicle, in order to guarantee the sealing performance, the two sealing rings are also required to be clamped tightly and fixed through an additionally arranged tool, the tool is required to be disassembled during installation, time and labor are wasted, and the cost is higher.
How to guarantee the leakproofness of battery package and hanging point before whole car installation, need not to establish auxiliary fixtures in addition for can labour saving and time saving, reduce cost when the installation, be the technical problem that technical personnel in the field need solve.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a battery package and hoisting point subassembly thereof can guarantee the battery package and install preceding leakproofness with whole car, need not to establish auxiliary fixtures in addition for can labour saving and time saving, reduce cost during the installation.
In order to solve the technical problem, the utility model provides a battery pack lifting point assembly, which comprises an installation cylinder, a sealing ring and a fixing part; the mounting cylinder penetrates through a mounting hole of a shell of the battery pack and can be fixed with the whole vehicle through a long bolt; the sealing ring is sleeved outside the mounting cylinder, and an annular groove matched with the inner edge of the mounting hole is formed in the outer wall of the sealing ring along the circumferential direction; the outer wall of the installation cylinder is provided with an annular baffle plate, and the fixing part can be fixed on the outer wall of the installation cylinder and tightly press the sealing ring between the fixing part and the annular baffle plate.
In the installation state, the sealing ring penetrates through the installation hole, the inner edge of the installation hole is located in the annular groove of the sealing ring, then the sealing ring is pressed and fixed through the fixing portion, the sealing ring is in the pressing state between the fixing portion and the annular baffle plate, at the moment, two side walls of the groove can clamp two end face ends of the installation hole tightly, namely the two side walls of the groove are respectively attached to two end face ends of the installation hole tightly, and sealing can be achieved between the sealing ring and the installation hole of the shell. Simultaneously, because the fixed part is fixed in between fixed part and the ring baffle with this sealing washer clamp tightly for the both ends of sealing washer are pasted tightly with fixed part and ring baffle respectively, can be at the sealed between this sealing washer and ring baffle, so, can realize better sealed effect between the mounting hole of casing and the installation section of thick bamboo outer wall.
The lifting point assembly can realize the condition that the mounting cylinder penetrates through the shell and is sealed with the shell under the condition that only one sealing ring is arranged, and further, the integral structure can be simplified. And after the fixing part is fixed with the mounting cylinder, the sealing ring can be in a compression state, and the sealing state between the sealing ring and the mounting hole and between the sealing ring and the annular baffle plate is ensured, so that the self-sealing of the battery pack can be realized without additionally arranging other auxiliary tools in the non-mounting state, the use of parts can be reduced, the operation is simplified, and the cost is reduced.
Optionally, the fixing portion includes a compression nut, and an outer wall of an end portion of the mounting cylinder is provided with an external thread adapted to the compression nut.
Optionally, the fixing portion further includes a gasket disposed between the compression nut and the sealing ring.
Optionally, the outer wall of the installation cylinder is further provided with a limiting structure, and when the fixing portion moves to the position where the limiting structure abuts against the fixing portion along the axial direction of the installation cylinder, the sealing ring is pressed between the fixing portion and the annular baffle.
Optionally, the limiting structure is a step structure arranged along the circumferential direction of the outer wall of the mounting cylinder.
Optionally, the casing includes lower casing and last casing, the one end of an installation section of thick bamboo with the mounting hole welded fastening of casing down, the other end passes through the sealing washer reaches the fixed part with the mounting hole of last casing is fixed.
Additionally, the utility model also provides a battery package, it includes the casing and as above hoisting point subassembly.
The technical effect of the battery pack with the suspension point assembly is similar to that of the suspension point assembly, and is not repeated herein for saving space.
Optionally, the surface of the casing is further provided with a groove, the mounting hole is formed in the bottom of the groove, and the fixing portion of the lifting point assembly is located in the groove.
Optionally, the number of the grooves is at least one, and the grooves are through grooves extending along the surface of the shell.
Optionally, the groove is formed by bending a surface of the housing.
Drawings
Fig. 1 is a schematic structural diagram of a battery pack according to an embodiment of the present invention;
FIG. 2 is a schematic view of the construction of the hanger assembly in an installed condition;
figure 3 is an exploded view of the drop point assembly.
In the accompanying fig. 1-3, the reference numerals are illustrated as follows:
10-a hoisting point assembly; 1-an installation cylinder, 11-an annular baffle and 12-a limiting structure; 2-sealing ring, 21-ring groove; 3-fixing part, 31-compression nut, 32-gasket; 4-shell, 41-mounting hole, 42-lower shell, 43-upper shell, 44-groove; 5-long bolt.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1-3, fig. 1 is a schematic structural diagram of a battery pack according to an embodiment of the present invention; FIG. 2 is a schematic view of the construction of the hanger assembly in an installed condition; figure 3 is an exploded view of the drop point assembly.
The embodiment of the utility model provides a battery package and hoisting point subassembly 10 thereof, wherein, as shown in fig. 1, this battery package includes casing 4 and at least one above-mentioned hoisting point subassembly 10 to install with whole car through hoisting point subassembly 10. Specifically, as shown in fig. 2 and 3, the suspension point assembly 10 includes a mounting tube 1, a sealing ring 2 and a fixing portion 3, wherein a mounting hole 41 is formed in the housing 4 of the battery pack in a penetrating manner, the mounting tube 1 penetrates through the mounting hole 41, the sealing ring 2 is sleeved outside the mounting tube 1, and an annular groove 21 adapted to an inner edge (inner edge) of the mounting hole 41 is formed in an outer wall of the sealing ring 2 along a circumferential direction; the outer wall of the installation cylinder 1 is provided with an annular baffle plate 11, and the fixing part 3 can be fixed on the outer wall of the installation cylinder 1 and tightly presses the sealing ring 2 between the fixing part 3 and the annular baffle plate 11. When the battery pack is fixed with the whole vehicle, the long bolt 5 can penetrate through the axial hole of the mounting cylinder 1 and be fixed with the whole vehicle.
In detail, as shown in fig. 2, in the installation state, the sealing ring 2 passes through the installation hole 41, the inner edge of the installation hole 41 is located in the annular groove 21 of the sealing ring 2, and then the sealing ring 2 is pressed and fixed by the fixing portion 3, so that the sealing ring 2 is in the pressed state between the fixing portion 3 and the annular baffle plate 11, at this time, two side walls of the groove 44 can clamp end surfaces at two ends of the installation hole 41, that is, the two side walls of the groove 44 are respectively attached to end surfaces at two ends of the installation hole 41, and sealing can be achieved between the sealing ring 2 and the installation hole 41 of the housing 4; meanwhile, the sealing ring 2 is clamped and fixed between the fixing part 3 and the annular baffle plate 11 by the fixing part 3, so that two ends of the sealing ring 2 are respectively attached to the fixing part 3 and the annular baffle plate 11, and the sealing between the sealing ring 2 and the annular baffle plate 11 can be realized, and thus, a better sealing effect can be realized between the mounting hole 41 of the shell 4 and the outer wall of the mounting cylinder 1.
The lifting point assembly 10 provided by the embodiment can realize the condition that the installation cylinder 1 penetrates through the shell 4 and is sealed with the shell 4 under the condition that only one sealing ring 2 is arranged, and further can simplify the whole structure. And, after the fixed part 3 is fixed with the mounting tube 1, the sealing ring 2 can be in a compressed state, and the sealing state between the sealing ring 2 and the mounting hole 41 and between the sealing ring 2 and the annular baffle plate 11 can be ensured, so that the self-sealing of the battery pack can be realized without additionally arranging other auxiliary tools in the non-mounted state, the use of parts can be reduced, the operation is simplified, and the cost is reduced.
In the above embodiment, the fixing portion 3 includes the compression nut 31, and the outer wall of the end portion of the mounting barrel 1 is provided with an external thread adapted to the compression nut 31. Or, in this embodiment, the outer wall of the end portion of the mounting cylinder 1 may be provided with a clamping groove, the fixing portion 3 includes a clamping member, and after the housing 4 is mounted, the clamping member cooperates with the clamping groove to clamp the sealing ring 2 between the clamping member and the annular baffle plate 11. And through gland nut 31 with locate the external screw thread cooperation of installation section of thick bamboo 1 outer wall to when pressing from both sides tight sealing washer 2 between gland nut 31 and annular baffle 11, can simplify the installation operation, and, the cooperation position of gland nut 31 and external screw thread can be adjusted in the minizone, can guarantee that sealing washer 2 is in the state of compressing tightly between fixed part 3 and annular baffle 11, and then can simplify the requirement to machining precision.
In the above embodiment, as shown in fig. 2 and 3, the fixing portion 3 further includes a gasket 32 disposed between the compression nut 31 and the seal ring 2, the compression nut 31 compresses the seal ring 2 through the gasket 32, and the compression nut 31 and the seal ring 2 are not in direct contact with each other, so that the phenomenon that the seal ring 2 is torn due to an excessive friction force of the seal ring 2 in a rotating and tightening process when the nut and the seal ring 2 are in direct contact with each other can be prevented, and a service life of the seal ring 2 is ensured.
In the above embodiment, as shown in fig. 3, the outer wall of the mounting tube 1 is further provided with the limiting structure 12, the fixing portion 3 can be engaged with the external thread and move along the axial direction of the mounting tube 1 to abut against the limiting structure 12, when the fixing portion 3 (the compression nut 31 or the gasket 32) moves along the axial direction of the mounting tube 1 to abut against the limiting structure 12, it is described that the sealing ring 2 is already in a compressed state at this time, and the sealing property between the mounting tube 1 and the mounting hole 41 of the housing 4 can be ensured, the arrangement of the limiting structure 12 can prompt the operation of the compression nut 31, so that the situation that the sealing performance of the sealing ring 2 is insufficient due to insufficient pressing force of the fixing portion 3 is avoided, and the situation that the sealing ring 2 is crushed and damaged due to an excessively large axial moving distance of the.
In the above-mentioned embodiment, limit structure 12 is the stair structure that sets up along 1 outer wall circumference of installation section of thick bamboo, of course, in this embodiment, do not do the restriction to this limit structure 12's concrete structure, if still can set up it to all can for a plurality of spacing archs that set up along the outer wall circumference interval of installation section of thick bamboo 1, and set up this limit structure 12 into stair structure, can guarantee that the effort between this limit structure 12 and the fixed part 3 is even, avoid fixed part 3 to take place the circumstances such as warp, make the effort between the two stable, and then guarantee fixed part 3 to the pressure effect of sealing washer 2, guarantee sealed effect.
In the above embodiment, the housing 4 includes the lower housing 42 and the upper housing 43, the lower housing 42 and the upper housing 43 are fixed by bolts during installation, and the lower housing 42 and the upper housing 43 are further provided with sealing members along the circumferential direction, so as to ensure the sealing performance of the housing 4. In this embodiment, one end of the mounting tube 1 is welded and fixed to the mounting hole 41 of the lower housing 42 to achieve sealing, and the other end is fixed to the mounting hole 41 of the upper housing 43 through the seal ring 2 and the fixing portion 3 to achieve sealing. That is, the end of the mounting tube 1 facing the upper housing 43 is provided with the above-described annular baffle 11, the stopper structure 12 and the external thread.
When the installation is carried out, the outer wall of one end of the installation cylinder 1 facing the lower shell 42 is welded and fixed with the inner edge of the installation hole 41 of the lower shell 42, and the sealing performance between the outer wall and the inner edge is ensured; the sealing ring 2 penetrates through the mounting hole 41 of the upper shell 43, so that the inner edge of the mounting hole 41 is located in the annular groove 21, then the upper shell 43 is sleeved outside the mounting cylinder 1 and is fixedly connected with the lower shell 42 through a bolt, after the shell 4 is mounted, the gasket 32 is sleeved at the end part of the mounting cylinder 1 and then is matched with the external thread through the compression nut 31 and moves along the axial direction of the mounting cylinder 1 until the gasket 32 is abutted against the limiting structure 12, at the moment, the two side walls of the groove 44 clamp the inner edge of the mounting hole 41 of the upper shell 43, and the sealing ring 2 is clamped between the gasket 32 and the annular baffle plate 11, so that the sealing performance between the mounting hole 41 of the upper shell 43 and the mounting cylinder 1 is ensured.
Alternatively, in this embodiment, both ends of the mounting tube 1 may be fixed and sealed with the mounting hole 41 of the housing 4 through the sealing ring 2 and the fixing portion 3. And when one end of the mounting cylinder 1 is welded and fixed, and the other end of the mounting cylinder is fixed and sealed through the sealing ring 2 and the fixing part 3, the same sealing performance is ensured, the whole structure is effectively simplified, the mounting operation is effectively simplified, and the mounting efficiency is improved.
In the above embodiment, the surface of the housing 4 (here, the upper housing 43, if both ends of the mounting tube 1 are fixed to the housing 4 through the sealing ring 2 and the fixing portion 3, and then, the lower housing 42 and the upper housing 43) is provided with the groove 44, the mounting hole is formed at the bottom of the groove 44, and the fixing portion 3 of the lifting point assembly 10 is located in the groove 44, so that the height of the lifting point assembly 10 protruding out of the surface of the housing 4 can be reduced, the interference with the whole vehicle structure during mounting can be avoided, and the smooth mounting can be ensured.
Further, for a battery pack having a large volume, in order to ensure stable installation, the number of the suspension point assemblies 10 is at least two, and in this embodiment, as shown in fig. 1, the groove 44 is a through groove extending along the surface of the housing 4, and the number of the groove 44 is at least one. Or, in this embodiment, the groove 44 may be configured to correspond to each suspension point assembly 10, that is, each suspension point assembly 10 corresponds to one circular groove 44, and when the groove 44 is configured as a through groove extending along the surface of the housing 4, the groove 44 is equivalent to a reinforcing structure formed on the surface of the housing 4, so as to further enhance the structural strength of the housing 4, and make the structural stability of the housing 4 after being mounted on the entire vehicle better. Each suspension point assembly 10 can be located in any one of the grooves 44 for better compatibility.
When only one end of the mounting tube 1 is fixed to the upper housing 43 through the seal ring 2 and the fixing portion 3, only the upper housing 43 may be provided with the above-mentioned groove 44, or both the lower housing 42 and the upper housing 43 may be provided with the above-mentioned groove 44, so as to ensure the overall structural strength of the housing 4.
Specifically, the number, positions, and the like of the grooves 44 and the suspension point assemblies 10 are not required, and as shown in fig. 1, four grooves 44 are formed in the surface of the housing 4, and one groove 44 intersects with the other three grooves 44, so that the overall structural strength of the housing 4 is further ensured, and the mounting stability is improved. The housing 4 is provided with six suspension point assemblies 10 and is distributed in three of the grooves 44. The fixing portions 3 of the respective lifting point assemblies 10 may be arranged in one, two or more rows, and at least one lifting point assembly 10 is provided in each row, so that the overall structure can be simplified and made more regular.
In the above embodiment, the groove 44 is formed by bending the surface of the housing 4, or the groove 44 may be formed by stamping the housing 4, and the bending of the groove 44 can simplify the manufacturing process and ensure the overall structural strength.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A battery pack lifting point assembly is characterized by comprising an installation cylinder (1), a sealing ring (2) and a fixing part (3);
the mounting cylinder (1) penetrates through a mounting hole (41) of a shell (4) of the battery pack and can be fixed with the whole vehicle through a long bolt (5);
the sealing ring (2) is sleeved outside the mounting cylinder (1), and an annular groove (21) matched with the inner edge of the mounting hole (41) is formed in the outer wall of the sealing ring (2) along the circumferential direction;
the outer wall of the installation cylinder (1) is provided with an annular baffle plate (11), and the fixing part (3) can be fixed on the outer wall of the installation cylinder (1) and tightly press the sealing ring (2) between the fixing part (3) and the annular baffle plate (11).
2. The lifting point assembly according to claim 1, characterized in that the fixing part (3) comprises a compression nut (31), and the outer wall of the end part of the mounting cylinder (1) is provided with an external thread matched with the compression nut (31).
3. The lifting point assembly according to claim 2, characterized in that the fixing portion (3) further comprises a gasket (32) provided between the compression nut (31) and the sealing ring (2).
4. The assembly of any one of claims 1 to 3, wherein the outer wall of the mounting cylinder (1) is further provided with a limiting structure (12), and when the fixing portion (3) moves to abut against the limiting structure (12) along the axial direction of the mounting cylinder (1), the sealing ring (2) is compressed between the fixing portion (3) and the annular baffle (11).
5. The lifting point assembly according to claim 4, characterized in that the limiting structure (12) is a step structure arranged along the circumference of the outer wall of the mounting cylinder (1).
6. The assembly of any one of claims 1 to 3, wherein the housing (4) comprises a lower housing (42) and an upper housing (43), one end of the mounting cylinder (1) is fixed to the mounting hole (41) of the lower housing (42) by welding, and the other end is fixed to the mounting hole (41) of the upper housing (43) by the sealing ring (2) and the fixing portion (3).
7. A battery pack, characterized by comprising a housing (4) and a lifting point assembly (10) according to any of claims 1-6.
8. The battery pack according to claim 7, wherein the surface of the housing (4) is further provided with a groove (44), the mounting hole (41) is provided at the bottom of the groove (44), and the fixing portion (3) of the lifting point assembly (10) is located in the groove (44).
9. A battery pack, according to claim 8, characterized in that said number of grooves (44) is at least one, said grooves (44) being through slots extending along the surface of said casing (4).
10. Battery pack according to claim 9, characterized in that the groove (44) is formed by a surface fold of the housing (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922394462.7U CN211320166U (en) | 2019-12-26 | 2019-12-26 | Battery pack and hoisting point assembly thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922394462.7U CN211320166U (en) | 2019-12-26 | 2019-12-26 | Battery pack and hoisting point assembly thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211320166U true CN211320166U (en) | 2020-08-21 |
Family
ID=72058093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922394462.7U Active CN211320166U (en) | 2019-12-26 | 2019-12-26 | Battery pack and hoisting point assembly thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211320166U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112576403A (en) * | 2020-12-01 | 2021-03-30 | 一汽解放汽车有限公司 | Sealing structure and vehicle |
| CN113241493A (en) * | 2021-05-11 | 2021-08-10 | 中航锂电（洛阳）有限公司 | Battery pack box, battery pack with box and vehicle with battery pack |
-
2019
- 2019-12-26 CN CN201922394462.7U patent/CN211320166U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112576403A (en) * | 2020-12-01 | 2021-03-30 | 一汽解放汽车有限公司 | Sealing structure and vehicle |
| CN113241493A (en) * | 2021-05-11 | 2021-08-10 | 中航锂电（洛阳）有限公司 | Battery pack box, battery pack with box and vehicle with battery pack |
| CN113241493B (en) * | 2021-05-11 | 2023-09-26 | 中创新航科技股份有限公司 | Battery pack box, battery pack with box and vehicle with battery pack |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211320166U (en) | Battery pack and hoisting point assembly thereof | |
| JPH0215425B2 (en) | ||
| CN217773598U (en) | Splicing type filter cylinder structure | |
| CN107355529B (en) | Gearbox vent plug and installation method thereof | |
| CN112582966B (en) | Sealing structure of cable and motor with same | |
| CN211701685U (en) | New energy automobile motor waterproof connection structure of easy location installation | |
| CN209896334U (en) | Anti-dropping retainer ring for aviation electric connector | |
| CN217002720U (en) | Combined sealing element for automobile bearing | |
| CN218509600U (en) | Convex top piston ring set of piston engine | |
| CN220151874U (en) | Full-elastic slip ring sealing structure | |
| CN218624578U (en) | Universal pressing plate for air inlet and outlet of compressor, compressor assembly and vehicle | |
| CN204986019U (en) | Fastener | |
| CN216839906U (en) | Fabricated building structure | |
| CN114542622B (en) | Clutch and pressure plate assembly thereof | |
| CN213036928U (en) | Vacuum adsorption device | |
| CN216078032U (en) | Hydraulic coupler | |
| CN211202279U (en) | Air booster pump shell | |
| CN220185551U (en) | Riveting sleeve with high sealing performance | |
| CN215908224U (en) | Self-sealing hollow bolt | |
| CN220890337U (en) | Exhaust structure of engine cylinder head | |
| CN218325159U (en) | Straight pin crosshead | |
| CN219003163U (en) | Cone crusher and processing system of optimizing assembly | |
| CN218498285U (en) | Case lid, box and battery package | |
| CN218625340U (en) | Motorcycle engine crankshaft tensioning structure | |
| CN217582869U (en) | Roller pressing sleeve convenient to install and position |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |