CN209425305U - It is a kind of for processing the special fixture of four-way union - Google Patents
It is a kind of for processing the special fixture of four-way union Download PDFInfo
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- CN209425305U CN209425305U CN201921053225.8U CN201921053225U CN209425305U CN 209425305 U CN209425305 U CN 209425305U CN 201921053225 U CN201921053225 U CN 201921053225U CN 209425305 U CN209425305 U CN 209425305U
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- fixedly connected
- processing
- way union
- pedestal
- special fixture
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Abstract
The utility model discloses a kind of for processing the special fixture of four-way union, belong to mechanical manufacturing field, including pedestal, the top quadrangle of the pedestal is fixedly connected to lifting device, it is fixedly connected with holder at the top of the lifting device, T-type mouth is offered at the top of the holder, is fixedly connected with clamping device on the right side of the pedestal, the side of the clamping device is rotatably connected to the snap-gauge inside T-type mouth, and the snap-gauge is rotatably connected to turning set away from the side of clamping device.Time needed for the utility model reduces repeatedly disassembly installation, solves the uniqueness due to four-way pipe connector area of bed and shape, so that it usually carries out centering clamping with chuck in processing, so that the time of processing increases, reduce formation efficiency, and need repeatedly to remove four-way union in use, it then reinstalls, to make the process time of four-way union longer problem.
Description
Technical field
The utility model relates to mechanical manufacturing fields, more specifically to a kind of for processing the special of four-way union
Use fixture.
Background technique
As range used in pipeline expands, and the environment used also becomes increasingly complex, and thus proposes to pipe fitting
Higher requirement, needs can to install and use under various circumstances, past in the construction and improvement project of urban sewage pipe network
Toward the structure for needing to use four-way union, this four-way union primarily serves blow-off line applying to different directions respectively
Work steering-effecting, and hydraulic and lubricant passage way is often used in machinery field, it is multi-pass that the connector of these oil circuits, which usually requires that,
Pipe fitting.
In four-way union process, it is often necessary to four-way union be fixed using fixture, due to four-way
The uniqueness of pipe joint and shape, so that it usually carries out centering clamping with chuck in processing, so that processing
Time increase, reduce formation efficiency, and need repeatedly to remove four-way union in use, then pacify again
Dress, to keep the process time of four-way union longer.
Utility model content
Aiming at the problems existing in the prior art, the purpose of this utility model is to provide one kind for processing four-way pipe connector
The special fixture of head, has more preferable to the fixed effect of four-way union, reduces the four-way union fixed required time, adds
The higher advantage of work efficiency rate solves the uniqueness due to four-way pipe connector area of bed and shape, so that it is usually wanted in processing
Centering clamping is carried out with chuck, so that the time of processing increases, reduces formation efficiency, and need in use more
It is secondary to remove four-way union, it then reinstalls, to make the process time of four-way union longer problem.
To solve the above problems, the utility model adopts the following technical scheme.
It is a kind of for processing the special fixture of four-way union, including pedestal, the top quadrangle of the pedestal is fixed to be connected
It is connected to lifting device, holder is fixedly connected at the top of the lifting device, T-type mouth is offered at the top of the holder, it is described
Clamping device is fixedly connected on the right side of pedestal, the side of the clamping device is rotatably connected to the snap-gauge inside T-type mouth,
The snap-gauge is rotatably connected to turning set away from the side of clamping device, and the other side of the holder is threaded with the first spiral shell
One end of bar, first screw rod through holder and is fixedly connected with positioning head, and the front and back of the pedestal offers
Through-hole, the through-hole wall are plugged with T-type column, and the surface of the T-type column is arranged with the spring inside through-hole, the T-type
The threaded one end of column is connected with fixed disk, and the other end of the T-type column is fixedly connected with supporting plate.
Preferably, the bottom of the pedestal is fixedly connected with resilient cushion, and the resilient cushion is rubber material component, and pedestal
Two sides are fixedly connected to latch.
Preferably, the lifting device includes screwed pipe, and the screw top of the screwed pipe is connected with the first threaded rod,
First threaded rod is fixedly connected with holder, and the bottom thread of the screwed pipe is connected with the second threaded rod, second spiral shell
Rasp bar is fixedly connected with pedestal, and the second threaded rod and the hand of spiral on the first threaded rod surface are opposite.
Preferably, the surface of four screwed pipes is socketed with first gear, and the surface of the first gear, which is engaged, to be connected
It is connected to tooth belt, servo motor is fixedly installed at the top of the pedestal, the output shaft of the servo motor is fixedly connected with
Second gear, the second gear engage connection with tooth belt.
Preferably, the clamping device includes U-shaped frame, and the side of the U-shaped frame is threaded with the second screw rod, described
Second screw rod is through U-shaped frame and is rotatably connected to rotation seat, and the rotation seat is fixedly connected with snap-gauge.
Preferably, the rotation seat is internally provided with bearing, and the bearing and the second screw rod be socketed.
Preferably, the phase back side of first screw rod and the second screw rod is fixedly connected to handle, and handle is rubber material
Expect component.
Preferably, the positioning head is circular platform type Rubber end, and the side of positioning head is provided with increasing resistance screw thread.
Preferably, the fixed disk with a thickness of five millimeters, and the side of fixed disk is fixedly connected with pull ring.
Preferably, the inner wall of the T-type mouth is fixedly connected with fender.
Compared with the prior art, utility model has the advantages that
(1) this programme lays flat four-way union blank material inside T-type mouth, and supporting plate is to four-way union blank material at this time
It is supported, the position of snap-gauge is then adjusted by clamping device, turning set is blocked by four-way union blank material, turns simultaneously
Dynamic first screw rod, compresses positioning head by four-way union blank material, so as to which four-way union blank material is blocked, blank material
Placement without finding angle accurately, and locating effect is more preferable, when blank material a connector after processing is completed, adjust clamping device and
First screw rod, blank material is removed, and the one end for then processing blank material is corresponding with turning set, and by clamping device and
First screw rod blocks blank material, and the end processed at this time extend into the inside of turning set, cooperates the clamping of positioning head, plays
The effect positioned to end, then again processes other ends of blank material, a blank material completes the process
Afterwards, under without inserting blank material, the first screw rod only need to be loosened, pulls fixed disk at this time, so that T-type column is pulled supporting plate, at this point, can make
Blank material rotates 90 degree around turning set, then unclamps fixed disk, unprocessed end can be made to be in top at this time, then twist
Tight first screw rod can be such that blank material is fixed, and after processing is completed, repeat this movement, the last one end is turned to
Side, completes the process, and blank material need to only be dismantled primary, time needed for reducing repeatedly disassembly installation, solution by whole process
The uniqueness determined due to four-way pipe connector area of bed and shape, so that it usually carries out centering dress with chuck in processing
Folder reduces formation efficiency, and need repeatedly to remove four-way union in use so that the time of processing increases,
Then it reinstalls, to make the process time of four-way union longer problem.
(2) special fixture for being used to process four-way union, by latch pedestal can be fixed on machine table or its
On his operating platform, and resilient cushion can reduce the vibration between pedestal and other platforms, to make the use of whole device more
Steadily.
(3) special fixture for being used to process four-way union can make the whole height of holder by the way that lifting device is arranged
It is adjusted, it, only need to be by servo motor and outside when needing to adjust height so that it can be suitble to the people of different habits to use
Power supply connection, servo motor work drive second gear rotation, and second gear rotates first gear by tooth belt, thus
Make rotated threaded tubular, due to the first threaded rod and the hand of spiral on the second threaded rod surface on the contrary, therefore rotated threaded tubular when,
Second threaded rod of one threaded rod sum is close to each other or is located remotely from each other, and so that the distance between pedestal and holder is changed, and bottom
Seat is fixed, therefore the height of holder can be made to be adjusted, and adjustment process does not need manually to exert a force, and use is very convenient.
(4) special fixture for being used to process four-way union, bearing can position to the first screw rod or the second screw rod into
Row limits, and prevents it from occurring tilting or deviate, and the rotation of the first screw rod and the second screw rod can be made more smooth, and user is adjusted
When it is more laborsaving.
(5) special fixture for being used to process four-way union, the handle person of being convenient to use rotate the first screw rod or second
Screw rod, and handle is arranged to rubber material, keeps handle quality more soft, it is more comfortable so as to hold user.
(6) special fixture for being used to process four-way union, positioning head are arranged to circular platform type Rubber end, increase positioning
Friction between head and blank material, and under the action of increasing resistance screw thread, the friction between positioning head and blank material is bigger, to make
Positioning head is more preferable to the clamping effect of blank material.
(7) special fixture for being used to process four-way union, fender can prevent in blank material switching process with T-type mouth
Wiping is touched, and blank material is avoided to scratch.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of the utility model pedestal；
Fig. 3 is the structural schematic diagram of the utility model lifting device；
Fig. 4 is the side view of the utility model holder.
Figure label explanation:
1, pedestal；2, lifting device；21, screwed pipe；22, the first threaded rod；23, the second threaded rod；3, holder；4, first
Gear；5, tooth belt；6, servo motor；7, second gear；8, T-type mouth；9, clamping device；91, U-shaped frame；92, the second spiral shell
Bar；93, rotation seat；10, snap-gauge；11, turning set；12, the first screw rod；13, positioning head；14, through-hole；15, T-type column；16, bullet
Spring；17, fixed disk；18, supporting plate.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe；Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment, based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
In the description of the present invention, it should be noted that term " on ", "lower", "inner", "outside" " top/bottom end " etc.
The orientation or positional relationship of instruction is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model
It is described with simplifying, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation structure
It makes and operates, therefore should not be understood as limiting the present invention.In addition, term " first ", " second " are only used for description mesh
, it is not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " being provided with ", " be arranged/connect ", " connection " etc., shall be understood in a broad sense, such as " connection ", may be a fixed connection, can also be with
It is to be detachably connected, or be integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be with
Indirectly connected through an intermediary, it can be the connection inside two elements.For the ordinary skill in the art, may be used
The concrete meaning of above-mentioned term in the present invention is understood with concrete condition.
Fig. 1-4 is please referred to, it is a kind of for processing the special fixture of four-way union, including pedestal 1, the top four of pedestal 1
Angle is fixedly connected to lifting device 2, and the top of lifting device 2 is fixedly connected with holder 3, and the top of holder 3 offers T-type mouth
8, T-type mouth 8 is designed according to the shape of four-way union, and general four-way union can be placed into the interior of T-type mouth 8
Portion, in addition can also be according to actual cross using needing for opening being arranged to, to be applicable in cross four-way union, bottom
The right side of seat 1 is fixedly connected with clamping device 9, and the side of clamping device 9 is rotatably connected to the snap-gauge 10 inside T-type mouth 8,
Snap-gauge 10 is rotatably connected to turning set 11 away from the side of clamping device 9, and turning set 11 can be rubber material component, quality compared with
It is soft, it is not easy that four-way union blank material is caused to damage, and the inner wall of turning set 11 can be arranged to smooth shape, facilitates four-way pipe
Connector blank material is stirred, and the other side of holder 3 is threaded with the first screw rod 12, and holder 3 is run through in one end of the first screw rod 12
And it is fixedly connected with positioning head 13, the front and back of pedestal 1 offers through-hole 14, and 14 inner wall of through-hole is plugged with T-type column 15,
The surface of T-type column 15 is arranged with the spring 16 inside through-hole 14, and spring 16 plays the role of pushing T-type column 15, thus
Supporting plate 18 can be enable to stretch out, to be supported to four-way union blank material, the threaded one end of T-type column 15 is connected with fixation
Disk 17, the other end of T-type column 15 are fixedly connected with supporting plate 18, and supporting plate 18 can be supported four-way pipe adapter tube blank material, keep away
Exempt from four-way pipe blank material processing Shi Congcong T-type mouth 8 to drop out.
Further, the bottom of pedestal 1 is fixedly connected with resilient cushion, and resilient cushion is rubber material component, and the two sides of pedestal 1
It is fixedly connected to latch, pedestal 1 can be fixed on machine table or other operating platforms by latch, and resilient cushion can
The vibration between pedestal 1 and other platforms is reduced, to keep the use of whole device more steady.
Further, lifting device 2 includes screwed pipe 21, and the screw top of screwed pipe 21 is connected with the first threaded rod
22, the first threaded rod 22 is fixedly connected with holder 3, and the bottom thread of screwed pipe 21 is connected with the second threaded rod 23, the second screw thread
Bar 23 is fixedly connected with pedestal 1, and the hand of spiral on 22 surface of the second threaded rod 23 and the first threaded rod is on the contrary, four screwed pipes
21 surface is socketed with first gear 4, and the surface engagement of first gear 4 is connected with tooth belt 5, and the top of pedestal 1 is fixed
Servo motor 6 is installed, the output shaft of servo motor 6 is fixedly connected with second gear 7, and second gear 7 is engaged with tooth belt 5
Connection can be such that the whole height of holder 3 is adjusted, so that it can be suitble to the people of different habits by the way that lifting device 2 is arranged
It uses, when needing to adjust height, servo motor 6 need to only be connect with external power supply, the work of servo motor 6 drives second gear
7 rotations, second gear 7 rotate first gear 4 by tooth belt 5, to make screwed pipe 21 rotate, due to the first threaded rod
22 and 23 surface of the second threaded rod hand of spiral on the contrary, therefore screwed pipe 21 rotate when, the second spiral shell of 22 sum of the first threaded rod
Rasp bar 23 is close to each other or is located remotely from each other, and the distance between pedestal 1 and holder 3 is made to change, but pedestal 1 be it is fixed, because
This can be such that the height of holder 3 is adjusted, adjustment process, not need manually to exert a force, use is very convenient.
Further, clamping device 9 includes U-shaped frame 91, and the side of U-shaped frame 91 is threaded with the second screw rod 92, the
Two screw rods 92 are through U-shaped frame 91 and are rotatably connected to rotation seat 93, and rotation seat 93 is fixedly connected with snap-gauge 10, is needing turning set
11 with the end of blank material when connecting, and rotates the second screw rod 92, the second screw rod 92 pushes snap-gauge 10 mobile, so that end be made to be inserted into
To inside turning set 11, to can be fallen down from T-type mouth 8 when avoidable blank material is stirred.
Further, rotation seat 93 is internally provided with bearing, and bearing and the second screw rod 92 are socketed, bearing can be to the first spiral shell
The position of bar 12 or the second screw rod 92 is defined, and prevents it from occurring tilting or deviate, and can make the first screw rod 12 and the second spiral shell
The rotation of bar 92 is more smooth, and user is more laborsaving when adjusting.
Further, the phase back side of the first screw rod 12 and the second screw rod 92 is fixedly connected to handle, and handle is rubber
Material members, the handle person of being convenient to use rotates the first screw rod 12 or the second screw rod 92, and handle is arranged to rubber material, makes hand
Handle quality is more soft, more comfortable so as to hold user, to make the fixation and disassembly of four-way union blank material
It is more convenient.
Further, positioning head 13 is circular platform type Rubber end, and the side of positioning head 13 is provided with increasing resistance screw thread, positioning head
13 are arranged to circular platform type Rubber end, increase the friction between positioning head 13 and blank material, and under the action of increasing resistance screw thread, fixed
Friction between potential head 13 and blank material is bigger, to keep positioning head 13 more preferable to the clamping effect of blank material.
Further, fixed disk 17 with a thickness of five millimeters, and the side of fixed disk 17 is fixedly connected with pull ring, and pull ring can
Keep the pulling of fixed disk 17 more convenient, only need finger to intert the inside into pull ring when user pulls, then pulling pull ring is
Fixed disk 17 can be pulled, it is more convenient to use.
Further, the inner wall of T-type mouth 8 is fixedly connected with fender, fender can prevent in blank material switching process with T
The wiping of type mouth 8 is touched, and blank material is avoided to scratch.
Working principle: four-way union blank material is laid flat inside T-type mouth 8, and supporting plate 18 is to four-way pipe connector capillus at this time
Blank is supported, and the position of snap-gauge 10 is then adjusted by clamping device 9, rotates the second screw rod 92, and the second screw rod 92 pushes
Snap-gauge 10 is mobile, so that end be made to be inserted into inside turning set 11, blocks turning set 11 by four-way union blank material, simultaneously
The first screw rod 12 is rotated, compresses positioning head 13 by four-way union blank material, so as to which four-way union blank material is blocked,
The placement of blank material is without finding angle accurately, and locating effect is more preferable, when blank material a connector after processing is completed, adjust and clamp
Device 9 and the first screw rod 12, blank material are removed, the one end for then processing blank material is corresponding with turning set 11, and passes through
Clamping device 9 and the first screw rod 12 block blank material, and the end processed at this time extend into the inside of turning set 11, cooperation
The clamping of positioning head 13 plays the effect positioned to end, then processes again to other ends of blank material,
One blank material after processing is completed, under inserting blank material, only need to loosen the first screw rod 12, pull fixed disk 17 at this time, make T
Type column 15 pulls supporting plate 18, at this point, blank material can be made to rotate 90 degree around turning set 11, then unclamps fixed disk 17, at this time
Unprocessed end can be made to be in top, then tightening the first screw rod 12 can be such that blank material is fixed, after processing is completed, weight
This multiple movement, is turned to top for the last one end, completes the process, and whole process need to only dismantle blank material once,
Reduce repeatedly disassembly installation needed for time, solve the uniqueness due to four-way pipe connector area of bed and shape so that its
Centering clamping usually is carried out with chuck when processing, so that the time of processing increases, reduces formation efficiency, and using
It needs repeatedly to remove four-way union in the process, then reinstall, to keep the process time of four-way union longer
In addition problem can be such that the whole height of holder 3 is adjusted, so that it can be suitble to different habits by the way that lifting device 2 is arranged
Used people uses, and when needing to adjust height, only need to connect servo motor 6 with external power supply, and servo motor 6 works drive the
The rotation of two gears 7, second gear 7 rotate first gear 4 by tooth belt 5, to make screwed pipe 21 rotate, due to first
The hand of spiral on 23 surface of threaded rod 22 and the second threaded rod on the contrary, when therefore screwed pipe 21 rotates, 22 sum of the first threaded rod
Second threaded rod 23 is close to each other or is located remotely from each other, and the distance between pedestal 1 and holder 3 is made to change, and pedestal 1 is fixed
, therefore the height of holder 3 can be made to be adjusted, adjustment process does not need manually to exert a force, and use is very convenient.
The preferable specific embodiment of the above, only the utility model；But the protection scope of the utility model is not
It is confined to this.Anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its improvement design is subject to equivalent substitution or change, should all cover in the protection scope of the utility model
It is interior.
Claims (10)
1. a kind of for processing the special fixture of four-way union, including pedestal (1), it is characterised in that: the top of the pedestal (1)
Portion quadrangle is fixedly connected to lifting device (2), is fixedly connected with holder (3), the holder at the top of the lifting device (2)
(3) it is offered at the top of T-type mouth (8), is fixedly connected with clamping device (9), the clamping device on the right side of the pedestal (1)
(9) side is rotatably connected to the snap-gauge (10) internal positioned at T-type mouth (8), and the snap-gauge (10) deviates from the one of clamping device (9)
Side is rotatably connected to turning set (11), and the other side of the holder (3) is threaded with the first screw rod (12), first screw rod
(12) one end is through holder (3) and is fixedly connected with positioning head (13), and the front and back of the pedestal (1) offers logical
Hole (14), through-hole (14) inner wall are plugged with T-type column (15), and the surface of the T-type column (15) is arranged with positioned at through-hole (14)
Internal spring (16), the threaded one end of the T-type column (15) are connected with fixed disk (17), the other end of the T-type column (15)
It is fixedly connected with supporting plate (18).
2. according to claim 1 a kind of for processing the special fixture of four-way union, it is characterised in that: the pedestal
(1) bottom is fixedly connected with resilient cushion, and the resilient cushion is rubber material component, and the two sides of pedestal (1) are fixedly connected to
Latch.
3. according to claim 1 a kind of for processing the special fixture of four-way union, it is characterised in that: the lifting
Device (2) includes screwed pipe (21), and the screw top of the screwed pipe (21) is connected with the first threaded rod (22), and described first
Threaded rod (22) is fixedly connected with holder (3), and the bottom thread of the screwed pipe (21) is connected with the second threaded rod (23), described
Second threaded rod (23) is fixedly connected with pedestal (1), and the screw thread side of the second threaded rod (23) and the first threaded rod (22) surface
To opposite.
4. according to claim 1 or 3 a kind of for processing the special fixture of four-way union, it is characterised in that: four
The surface of the screwed pipe (21) is socketed with first gear (4), and the surface engagement of the first gear (4) is connected with gear skin
With (5), it is fixedly installed with servo motor (6) at the top of the pedestal (1), the output shaft of the servo motor (6) is fixedly connected
Have second gear (7), the second gear (7) engages connection with tooth belt (5).
5. according to claim 1 a kind of for processing the special fixture of four-way union, it is characterised in that: the clamping
Device (9) includes U-shaped frame (91), and the side of the U-shaped frame (91) is threaded with the second screw rod (92), second screw rod
(92) run through U-shaped frame (91) and be rotatably connected to rotation seat (93), the rotation seat (93) is fixedly connected with snap-gauge (10).
6. according to claim 5 a kind of for processing the special fixture of four-way union, it is characterised in that: the rotation
Seat (93) is internally provided with bearing, and the bearing and the second screw rod (92) are socketed.
7. a kind of for processing the special fixture of four-way union according to claim 1 or 5, it is characterised in that: described
The phase back side of first screw rod (12) and the second screw rod (92) is fixedly connected to handle, and handle is rubber material component.
8. according to claim 1 a kind of for processing the special fixture of four-way union, it is characterised in that: the positioning
Head (13) is circular platform type Rubber end, and the side of positioning head (13) is provided with increasing resistance screw thread.
9. according to claim 1 a kind of for processing the special fixture of four-way union, it is characterised in that: the fixation
Disk (17) with a thickness of five millimeters, and the side of fixed disk (17) is fixedly connected with pull ring.
10. according to claim 1 a kind of for processing the special fixture of four-way union, it is characterised in that: the T-type
The inner wall of mouth (8) is fixedly connected with fender.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921053225.8U CN209425305U (en) | 2019-07-08 | 2019-07-08 | It is a kind of for processing the special fixture of four-way union |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921053225.8U CN209425305U (en) | 2019-07-08 | 2019-07-08 | It is a kind of for processing the special fixture of four-way union |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209425305U true CN209425305U (en) | 2019-09-24 |
Family
ID=67979539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921053225.8U Active CN209425305U (en) | 2019-07-08 | 2019-07-08 | It is a kind of for processing the special fixture of four-way union |
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| CN (1) | CN209425305U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110726042A (en) * | 2019-10-10 | 2020-01-24 | 山东轻工职业学院 | Electromechanical device mounting base based on multiple protection structures |
| CN113458990A (en) * | 2021-04-07 | 2021-10-01 | 瑞安市瑞鑫电器有限公司 | Positioning device for multi-positioning fixed carbon brush holder and use method thereof |
-
2019
- 2019-07-08 CN CN201921053225.8U patent/CN209425305U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110726042A (en) * | 2019-10-10 | 2020-01-24 | 山东轻工职业学院 | Electromechanical device mounting base based on multiple protection structures |
| CN110726042B (en) * | 2019-10-10 | 2021-09-21 | 山东轻工职业学院 | Electromechanical device mounting base based on multiple protection structures |
| CN113458990A (en) * | 2021-04-07 | 2021-10-01 | 瑞安市瑞鑫电器有限公司 | Positioning device for multi-positioning fixed carbon brush holder and use method thereof |
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