CN217056031U - Fixed-charging type hydraulic coupler connecting device - Google Patents
Fixed-charging type hydraulic coupler connecting device Download PDFInfo
- Publication number
- CN217056031U CN217056031U CN202220603625.7U CN202220603625U CN217056031U CN 217056031 U CN217056031 U CN 217056031U CN 202220603625 U CN202220603625 U CN 202220603625U CN 217056031 U CN217056031 U CN 217056031U
- Authority
- CN
- China
- Prior art keywords
- center
- hole
- spline
- driving shaft
- expansion
- 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
Landscapes
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model discloses a fixed-charge type hydraulic coupler connecting device, which comprises a mounting hole, a connecting hole, a locking mechanism, an expansion sleeve structure and a driving shaft; the clamping groove and the bulge are arranged in the utility model, thereby ensuring that the connecting seat can be driven to rotate together when the rotating seat rotates, and improving the subsequent locking and fixing effect; in the utility model, the internal hexagonal wrench drives the locking mechanism to rotate integrally, so that the outside of the driving shaft can be firmly fixed inside the connecting hole through the expansion taper sleeve, and the connection tightness can be ensured; the driving shaft is connected with the expansion taper sleeve through the spline, and the expansion taper sleeve is also connected with the inside of the connecting hole through the spline, thereby ensuring the stability and reliability of transmission; the utility model discloses in screw up all splines the screw, can be through only turning the tight connecting hole right flank in screw top, locking mechanism wholly can not take place rotatoryly when guaranteeing to use, stability and reliability when further having guaranteed the use.
Description
Technical Field
The utility model relates to a hydraulic coupling technical field, specific decide and fill type hydraulic coupling device that says so.
Background
The fixed-charge type (torque-limiting type and common type) hydraulic coupler has wide application in various fields, has precise assembly requirements, and generally adopts the assembly tolerance requirement of transition fit. In addition, the torque-limiting type hydraulic coupler is used as a transmission part between a power machine and a working machine, and in order to reduce the operation load of the torque-limiting type hydraulic coupler, a shell material generally adopts a cast aluminum piece and cannot bear heavy prying or impact. Therefore, during assembly and disassembly, the shell parts cannot be knocked or subjected to other stress methods; at present, users usually use a disassembling screw to disassemble the torque-limiting hydraulic coupler, that is, a screw sleeve specially arranged at the disassembling end of a main shaft of the torque-limiting hydraulic coupler is utilized, and the disassembling screw is screwed into the shaft end of a motor shaft or a speed reducer so as to push the torque-limiting hydraulic coupler up and down from the shaft end of the motor shaft or the speed reducer. However, the following problems exist: firstly, the thread machining precision of the thread sleeve is high in requirement, the machining difficulty is high, the quality is difficult to guarantee, the thread matching precision of the thread sleeve and a detachable screw rod is not high, the friction resistance is large, the strength of the thread is not enough, and the thread is easy to damage; secondly, the disassembly is inconvenient, in order to fix a motor shaft or a reducer shaft, a motor fan protective cover needs to be disassembled firstly, then fan blades need to be disassembled, and when a screw sleeve or the screw sleeve is not damaged, an old hydraulic coupler cannot be disassembled, only the disassembly can be damaged, the maintenance and the reuse cannot be carried out, so that certain economic loss is caused, and the normal production is delayed more seriously; therefore, the existing connecting device of the fixed charging type hydraulic coupler is time-consuming and labor-consuming to assemble and disassemble, and has poor stability in use.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned weak point that exists among the prior art, the utility model aims at providing a decide and fill type hydraulic coupling device has solved and has decided to fill the type hydraulic coupling device installation relatively time and energy consuming when dismantling now, the relatively poor problem of stability during the use.
The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is: a kind of fixed charging type fluid coupling device, including the fluid coupling basic shaft, its innovation point lies in, also include mounting hole, attachment hole, locking mechanism, expand and tighten the sleeve structure and drive shaft; the mounting hole is formed in the center of the right side of the main shaft of the hydraulic coupler; the connecting hole is formed in the center of the left side of the main shaft of the hydraulic coupler, and the center of the right side of the connecting hole is communicated with the center of the left side of the mounting hole; the left side of the locking mechanism is connected with the right side of the connecting hole, and the right side of the locking mechanism is positioned in the center of the left side of the mounting hole; and an expansion sleeve structure is arranged between the outer part of the left side of the driving shaft and the inner wall of the mounting hole, and the center of the left side of the driving shaft is connected with the right side of the locking mechanism.
Preferably, the locking mechanism comprises a rotating seat, an inner hexagonal groove, a locking screw, a rotation-stopping screw, a locking hole, a first threaded hole, a connecting seat, an external thread, a second threaded hole, a clamping groove and a protrusion; an inner hexagonal groove is formed in the center of the left side of the rotating seat, a locking hole is formed in the center of the right side of the inner hexagonal groove, rotation-stopping screws are connected in internal threads arranged inside the periphery of the left side of the rotating seat, and a protrusion is arranged in the center of the right side of the rotating seat; the outer part of the left side of the connecting seat is positioned in the center of the right side of the connecting hole, external threads are arranged on the outer part of the right side of the connecting seat, a clamping groove is formed in the center of the left side of the connecting seat, and the clamping groove is connected with the outer part of the bulge; a first threaded hole is formed in the center of the right side of the clamping groove; the left side of the locking screw is positioned in the locking hole, and the right side of the locking screw is connected with the first threaded hole; and the second threaded hole is formed in the center of the left side of the driving shaft and is connected with the external thread.
Preferably, the rotation-stopping screw is a socket head cap end fastening screw.
Preferably, the specific structure of the expansion sleeve structure comprises a first internal spline, an expansion taper sleeve, a first external spline, a second internal spline, a convex groove on the end face, a second external spline and a convex groove on the outer circle; the first internal spline is arranged on the inner wall of the connecting hole; the outer part of the expansion taper sleeve is provided with a first external spline, the first external spline is connected with the first internal spline, and the inner wall of the expansion taper sleeve is provided with a second internal spline; the second external spline is arranged on the outer circle on the left side of the driving shaft and connected with the second internal spline; the end face convex groove is arranged on the end face of the right side of the expansion taper sleeve; the excircle convex groove is arranged on the excircle of the left side of the driving shaft, and the left side surface of the excircle convex groove is connected with the right side surface of the end surface convex groove.
Preferably, the expansion taper sleeve is a small-left and large-right expansion taper sleeve.
The utility model has the advantages that:
(1) the utility model discloses in draw-in groove and the arch that sets up to can drive the connecting seat rotatory together when having ensured the roating seat rotation, just also improve follow-up fixed effect of locking.
(2) The utility model discloses in drive locking mechanism rotation entirely through interior hexagonal spanner to can just ensure the compactness of connecting through expand tight taper sleeve with the outside firm fixing of drive shaft inside the connecting hole.
(3) The utility model discloses well drive shaft passes through the spline and links to each other with the tight taper sleeve that expands, and the tight taper sleeve that expands also has ensured driven stability and reliability through spline and connecting hole internal connection.
(4) The utility model discloses in screw up all screws that spline, can push up the connecting hole right flank through the screw that splines to locking mechanism wholly can not take place rotatoryly when having ensured the use, stability and reliability when further ensuring the use.
(5) The utility model discloses unscrewing locking mechanism can directly order about the drive shaft right side and remove away from out the mounting hole when well dismantlement to improve the convenience of dismantlement, also avoided the damage of part.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the locking mechanism.
Fig. 3 is a side schematic view of fig. 2.
Fig. 4 is a structural schematic diagram of the expansion sleeve structure.
In the figure: 1-a fluid coupling main shaft; 2-mounting holes; 3-connecting holes; 4-a locking mechanism; 5-expansion sleeve structure; 6-a drive shaft; 41-a rotating seat; 42-inner hexagonal groove; 43-locking screws; 44-rotation stop screws; 45-locking holes; 46-a first threaded hole; 47-a connection seat; 48-external thread; 49-threaded hole two; 410-a card slot; 411-bumps; 51-internal spline one; 52-expanding the taper sleeve; 53-external spline one; 54-internal spline two; 55-end face convex groove; 56-external spline II; 57-excircle convex groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Example 1
As shown in fig. 1, a fixed-charge type fluid coupling device comprises a fluid coupling main shaft 1, a mounting hole 2, a connecting hole 3, a locking mechanism 4, an expansion sleeve structure 5 and a driving shaft 6; the mounting hole 2 is formed in the center of the right side of the main shaft 1 of the hydraulic coupler; the connecting hole 3 is formed in the center of the left side of the main shaft 1 of the hydraulic coupler, and the center of the right side of the connecting hole 3 is communicated with the center of the left side of the mounting hole 2; the left side of the locking mechanism 4 is connected with the right side of the connecting hole 3, and the right side of the locking mechanism 4 is positioned in the center of the left side of the mounting hole 2; and an expansion sleeve structure 5 is arranged between the outer part of the left side of the driving shaft 6 and the inner wall of the mounting hole 2, and the center of the left side of the driving shaft 6 is connected with the right side of the locking mechanism 4.
Example 2
As shown in fig. 1, a fixed-charge type fluid coupling device comprises a fluid coupling main shaft 1, a mounting hole 2, a connecting hole 3, a locking mechanism 4, an expansion sleeve structure 5 and a driving shaft 6; the mounting hole 2 is formed in the center of the right side of the main shaft 1 of the hydraulic coupler; the connecting hole 3 is formed in the center of the left side of the main shaft 1 of the hydraulic coupler, and the center of the right side of the connecting hole 3 is communicated with the center of the left side of the mounting hole 2; the left side of the locking mechanism 4 is connected with the right side of the connecting hole 3, and the right side of the locking mechanism 4 is positioned in the center of the left side of the mounting hole 2; an expansion sleeve structure 5 is arranged between the outer portion of the left side of the driving shaft 6 and the inner wall of the mounting hole 2, and the center of the left side of the driving shaft 6 is connected with the right side of the locking mechanism 4.
As shown in fig. 2 and 3, the specific structure of the locking mechanism 4 includes a rotating base 41, an inner hexagonal groove 42, a locking screw 43, a rotation-stopping screw 44, a locking hole 45, a first threaded hole 46, a connecting base 47, an outer thread 48, a second threaded hole 49, a clamping groove 410 and a protrusion 411; an inner hexagonal groove 42 is formed in the center of the left side of the rotating base 41, a locking hole 45 is formed in the center of the right side of the inner hexagonal groove 42, rotation-stopping screws 44 are connected in internal threads arranged inside the periphery of the left side of the rotating base 41, and a protrusion 411 is formed in the center of the right side of the rotating base 41; the outer part of the left side of the connecting seat 47 is positioned in the center of the right side of the connecting hole 3, an external thread 48 is arranged on the outer part of the right side of the connecting seat 47, a clamping groove 410 is formed in the center of the left side of the connecting seat 47, and the clamping groove 410 is connected with the outer part of the protrusion 411; a first threaded hole 46 is formed in the center of the right side of the clamping groove 410; the left side of the locking screw 43 is positioned in the locking hole 45, and the right side of the locking screw 43 is connected with the first threaded hole 46; the second threaded hole 49 is formed in the center of the left side of the driving shaft 6, and the second threaded hole 49 is connected with the external thread 48.
The rotation-stopping screw 44 is a hexagon socket head cap end set screw, so that the rotation-stopping effect is improved.
Example 3
As shown in fig. 1, a fixed-charge type fluid coupling device comprises a fluid coupling main shaft 1, a mounting hole 2, a connecting hole 3, a locking mechanism 4, an expansion sleeve structure 5 and a driving shaft 6; the mounting hole 2 is formed in the center of the right side of the hydraulic coupler main shaft 1; the connecting hole 3 is formed in the center of the left side of the main shaft 1 of the hydraulic coupler, and the center of the right side of the connecting hole 3 is communicated with the center of the left side of the mounting hole 2; the left side of the locking mechanism 4 is connected with the right side of the connecting hole 3, and the right side of the locking mechanism 4 is positioned in the center of the left side of the mounting hole 2; an expansion sleeve structure 5 is arranged between the outer portion of the left side of the driving shaft 6 and the inner wall of the mounting hole 2, and the center of the left side of the driving shaft 6 is connected with the right side of the locking mechanism 4.
As shown in fig. 2 and 3, the specific structure of the locking mechanism 4 includes a rotating base 41, an inner hexagonal groove 42, a locking screw 43, a rotation-stopping screw 44, a locking hole 45, a first threaded hole 46, a connecting base 47, an outer thread 48, a second threaded hole 49, a clamping groove 410 and a protrusion 411; an inner hexagonal groove 42 is formed in the center of the left side of the rotating seat 41, a locking hole 45 is formed in the center of the right side of the inner hexagonal groove 42, rotation-stopping screws 44 are connected to internal threads arranged inside the periphery of the left side of the rotating seat 41, and a protrusion 411 is formed in the center of the right side of the rotating seat 41; the outer part of the left side of the connecting seat 47 is positioned in the center of the right side of the connecting hole 3, an external thread 48 is arranged on the outer part of the right side of the connecting seat 47, a clamping groove 410 is formed in the center of the left side of the connecting seat 47, and the clamping groove 410 is connected with the outer part of the protrusion 411; a first threaded hole 46 is formed in the center of the right side of the clamping groove 410; the left side of the locking screw 43 is positioned in the locking hole 45, and the right side of the locking screw 43 is connected with the first threaded hole 46; the second threaded hole 49 is formed in the center of the left side of the driving shaft 6, and the second threaded hole 49 is connected with the external thread 48.
The rotation-stopping screw 44 is a socket head cap end set screw, so that the rotation-stopping effect is improved.
As shown in fig. 4, the specific structure of the expansion sleeve structure 5 includes a first internal spline 51, an expansion taper sleeve 52, a first external spline 53, a second internal spline 54, a second end face convex groove 55, a second external spline 56 and a convex external groove 57; the first internal spline 51 is arranged on the inner wall of the connecting hole 3; the outer part of the expansion taper sleeve 52 is provided with a first external spline 53, the first external spline 53 is connected with a first internal spline 51, and the inner wall of the expansion taper sleeve 52 is provided with a second internal spline 54; the second external spline 56 is arranged on the outer circle at the left side of the driving shaft 6, and the second external spline 56 is connected with the second internal spline 54; the end face convex groove 55 is arranged on the end face of the right side of the expansion taper sleeve 52; the outer circular convex groove 57 is formed in the outer circle on the left side of the driving shaft 6, and the left side face of the outer circular convex groove 57 is connected with the right side face of the end face convex groove 55.
Wherein, the expansion taper sleeve 52 is a small left expansion taper sleeve and a large right expansion taper sleeve.
The utility model discloses a user state is, during the installation, at first insert connecting seat 47 left side through mounting hole 2 inside connecting hole 3 right side central authorities, then fix roating seat 41 in connecting seat 47 left side through spline screw 44, draw-in groove 410 and the arch 411 that set up here, thereby guaranteed that roating seat 41 can drive connecting seat 47 when rotatory and rotate together, just also improved the fixed effect of follow-up locking, then overlap the inside cover of bloated tight sleeve structure 5 outside drive shaft 6, then insert bloated tight sleeve structure 5 and drive shaft 6 inside mounting hole 2 together, drive locking mechanism 4 bodily rotation through interior hexagonal spanner simultaneously, thereby can screw up screw hole two 49 through external screw thread 48, just also can make drive shaft 6 move to the left firmly fix inside connecting hole 3, and the drive shaft 6 that moves to the left also can order about bloated tight taper sleeve 52 through excircle tongue 57 and terminal surface tongue 55 and move to the left wholly, thereby can be through bloated tight taper sleeve 52 with the outside firm fixing inside connecting hole 3 of drive shaft 6, just also ensure the compactness of connection, here drive shaft 6 links to each other with bloated tight taper sleeve 52 through the spline, and bloated tight taper sleeve 52 also is through spline and connecting hole 3 internal connection, thereby transmission stability and reliability have been ensured, screw up all rotation-stopping screws 44 in addition, can push up the right flank of connecting hole 3 through rotation-stopping screw 44, thereby it can not take place rotatoryly to have ensured that locking mechanism 4 is whole when using, just also further ensure stability and reliability when using, and unscrew locking mechanism 4 during the dismantlement and can directly order about drive shaft 6 and remove from mounting hole 2 to the right side, thereby the convenience of dismantlement has been improved, in addition also avoided the damage of part.
The control mode of the present invention is controlled by manual starting or by the existing automation technology, the connection diagram of the power element and the power supply belong to the common knowledge in the field, and the present invention is mainly used to protect the mechanical device, so the present invention does not explain the control mode and the wiring arrangement in detail.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the present invention, unless otherwise explicitly specified or limited, the terms "mounted", "disposed", "connected", "fixed", "screwed" and the like are to be understood broadly, and may be, for example, a fixed connection, a detachable connection, or an integral body; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate medium, and may be used for communicating the inside of two elements or for interacting with each other, unless otherwise specifically defined, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to the specific circumstances.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above, and it should be understood by those skilled in the art that the present invention is not limited by the above embodiments, which are only illustrative, but also various changes and modifications may be made without departing from the spirit and scope of the present invention, which fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.
Claims (5)
1. A fixed-charge type hydraulic coupler connecting device comprises a hydraulic coupler main shaft (1), and is characterized by further comprising a mounting hole (2), a connecting hole (3), a locking mechanism (4), an expansion sleeve structure (5) and a driving shaft (6);
the mounting hole (2) is formed in the center of the right side of the hydraulic coupler spindle (1);
the connecting hole (3) is formed in the center of the left side of the hydraulic coupler spindle (1), and the center of the right side of the connecting hole (3) is communicated with the center of the left side of the mounting hole (2);
the left side of the locking mechanism (4) is connected with the right side of the connecting hole (3), and the right side of the locking mechanism (4) is positioned in the center of the left side of the mounting hole (2);
and an expansion sleeve structure (5) is arranged between the outer part of the left side of the driving shaft (6) and the inner wall of the mounting hole (2), and the center of the left side of the driving shaft (6) is connected with the right side of the locking mechanism (4).
2. The coupling device of the fixed-charge type hydraulic coupling as claimed in claim 1, wherein the specific structure of the locking mechanism (4) comprises a rotary seat (41), an inner hexagonal groove (42), a locking screw (43), a rotation-stopping screw (44), a locking hole (45), a first threaded hole (46), a connecting seat (47), an external thread (48), a second threaded hole (49), a clamping groove (410) and a protrusion (411);
an inner hexagonal groove (42) is formed in the center of the left side of the rotating seat (41), a locking hole (45) is formed in the center of the right side of the inner hexagonal groove (42), rotation-stopping screws (44) are connected in internal threads formed in the periphery of the left side of the rotating seat (41), and a protrusion (411) is formed in the center of the right side of the rotating seat (41);
the outer part of the left side of the connecting seat (47) is positioned in the center of the right side of the connecting hole (3), an external thread (48) is arranged on the outer part of the right side of the connecting seat (47), a clamping groove (410) is formed in the center of the left side of the connecting seat (47), and the clamping groove (410) is connected with the outer part of the bulge (411);
a first threaded hole (46) is formed in the center of the right side of the clamping groove (410);
the left side of the locking screw (43) is positioned in the locking hole (45), and the right side of the locking screw (43) is connected with the first threaded hole (46);
the second threaded hole (49) is formed in the center of the left side of the driving shaft (6), and the second threaded hole (49) is connected with the external thread (48).
3. A coupling device according to claim 2, wherein said rotation stop screw (44) is a socket head cap set screw.
4. The coupling device of claim 1, wherein the expansion sleeve structure (5) comprises a first internal spline (51), an expansion taper sleeve (52), a first external spline (53), a second internal spline (54), a head face convex groove (55), a second external spline (56) and an external convex groove (57);
the first internal spline (51) is arranged on the inner wall of the connecting hole (3);
the outer part of the expansion taper sleeve (52) is provided with a first external spline (53), the first external spline (53) is connected with a first internal spline (51), and the inner wall of the expansion taper sleeve (52) is provided with a second internal spline (54);
the second external spline (56) is arranged on the outer circle on the left side of the driving shaft (6), and the second external spline (56) is connected with the second internal spline (54);
the end face convex groove (55) is arranged on the end face of the right side of the expansion taper sleeve (52);
the excircle convex groove (57) is arranged on the excircle on the left side of the driving shaft (6), and the left side surface of the excircle convex groove (57) is connected with the right side surface of the end face convex groove (55).
5. A fixed-charge fluid coupling device as claimed in claim 4, wherein said expansion cone (52) is a small left-to-large right-to-small expansion cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220603625.7U CN217056031U (en) | 2022-03-20 | 2022-03-20 | Fixed-charging type hydraulic coupler connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220603625.7U CN217056031U (en) | 2022-03-20 | 2022-03-20 | Fixed-charging type hydraulic coupler connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217056031U true CN217056031U (en) | 2022-07-26 |
Family
ID=82491526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220603625.7U Active CN217056031U (en) | 2022-03-20 | 2022-03-20 | Fixed-charging type hydraulic coupler connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217056031U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116123205A (en) * | 2023-04-20 | 2023-05-16 | 宁波东力传动设备有限公司 | Conical surface matched type shaft connecting structure |
-
2022
- 2022-03-20 CN CN202220603625.7U patent/CN217056031U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116123205A (en) * | 2023-04-20 | 2023-05-16 | 宁波东力传动设备有限公司 | Conical surface matched type shaft connecting structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN217056031U (en) | Fixed-charging type hydraulic coupler connecting device | |
| CN105690314A (en) | Electrified bolt fastening tool | |
| CN203426959U (en) | Dismounting tool for stud used on airplane | |
| CN216099711U (en) | Diamond saw blade convenient to install | |
| CN217736068U (en) | Torque-limiting type hydraulic coupler expansion sleeve connecting device | |
| CN212272848U (en) | Coupling convenient to replace | |
| CN211127445U (en) | Universal type generator test run connection transmission device | |
| CN109746856A (en) | One kind is electronic to determine torsional impact spanner | |
| CN209294113U (en) | A kind of water pump stainless steel shaft coupling that transmission performance is good | |
| CN209923703U (en) | Novel torque wrench | |
| CN207373059U (en) | One kind is electronic to determine torsional impact spanner | |
| CN213270689U (en) | Detachable engine crankshaft | |
| CN210531439U (en) | Quick-release coupler | |
| CN211423200U (en) | Shaft and coupling matching device | |
| CN109253176B (en) | Fixed-charging type hydraulic coupler connecting device and application | |
| CN211389628U (en) | Multi-saw-blade double-nut locking device for stone mechanical main shaft | |
| CN217943187U (en) | Screw rotating tool for maintaining photovoltaic equipment | |
| CN217761639U (en) | Bolt structure capable of reducing disassembly and assembly | |
| CN220539570U (en) | Drilling machine power head | |
| CN215548240U (en) | Special wrench for solving interference of automobile part assembly | |
| CN216000342U (en) | Pump shaft sleeve dismounting tool | |
| CN217046207U (en) | Novel beat screw device | |
| CN216741047U (en) | Lock cylinder convenient to disassemble and assemble | |
| CN213684652U (en) | Coupling connecting structure of magnetic pump | |
| CN211615407U (en) | Multihead is spanner in coordination |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |