CN211364020U - Detachable automatic binding device for correcting test paper - Google Patents
Detachable automatic binding device for correcting test paper Download PDFInfo
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- CN211364020U CN211364020U CN201922074276.5U CN201922074276U CN211364020U CN 211364020 U CN211364020 U CN 211364020U CN 201922074276 U CN201922074276 U CN 201922074276U CN 211364020 U CN211364020 U CN 211364020U
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Abstract
The utility model relates to a can dismantle automatic binding means for examination paper wholesale, including the binding seat with be used for wearing the binding head of examination paper, the connection can be dismantled with the binding head to the binding seat, still includes: the binding head rotating and lifting device is used for driving the binding head to rotate and lift along the central axis of the binding head; the binding seat limiting device is positioned right below the binding head rotating and lifting device, the binding seat is detachably arranged in the binding seat limiting device, and the binding seat limiting device is used for limiting the binding seat to rotate along the binding seat; the pressing and fixing device is fixedly arranged on the binding head rotating and lifting device and is used for pressing and fixing the test paper on the binding seat limiting device; the utility model discloses repeatedly usable practices thrift the cost, application scope, and the practicality is strong.
Description
Technical Field
The utility model belongs to the technical field of the binding means technique and specifically relates to a can dismantle automatic binding means for examination paper wholesale is related to.
Background
Binding, namely processing printed pages and signatures into a book, or finishing and matching receipts, bills and the like, binding the printed pages and signatures into a book and binding books and periodicals, and the binding comprises two procedures of binding and binding. The book binding is to bind pages, namely the book block, the book cover, namely the binding, and the detachable automatic binding device for correcting the test paper is a device for binding the test paper.
Binding means who uses in the existing market all can realize binding file and bill automatically, but can't dismantle after binding, and the dismantlement of going on by force easily leads to the file to tear, is not suitable for the paper wholesale to bind, and the binding work piece after dismantling simultaneously can't carry out used repeatedly, causes the waste.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: in order to overcome the problems that the existing binding device is not suitable for test paper correction and binding, and the bound workpiece after disassembly cannot be reused to cause waste, the detachable automatic binding device for test paper correction is provided.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a can dismantle automatic binding means for examination paper wholesale, includes binding seat and the binding head that is used for wearing the examination paper, binding seat and binding head can dismantle the connection, still include: the binding head rotating and lifting device is used for driving the binding head to rotate and lift along the central axis of the binding head;
the binding seat limiting device is positioned right below the binding head rotating and lifting device, the binding seat is detachably arranged in the binding seat limiting device, and the binding seat limiting device is used for limiting the binding seat to rotate along the binding seat;
and the pressing and fixing device is fixedly arranged on the binding head rotating and lifting device and is used for pressing and fixing the test paper on the binding seat limiting device.
Further, the stapling head rotary lifting device includes:
the lifting mechanism: the lifting mechanism comprises a fixed base and a connecting transverse frame, a lifting assembly is fixedly arranged between the fixed base and the connecting transverse frame, and the lifting assembly drives the fixed base and the connecting transverse frame to approach or separate from each other;
the binding and pressing frame is fixedly arranged on the connecting cross frame, at least two binding heads are rotatably arranged on the binding and pressing frame and are arranged at intervals, and the connecting cross frame is fixedly provided with a rotating assembly which drives the at least two binding heads to rotate respectively.
Further, rotating assembly includes motor and drive connecting rod, motor fixed mounting is on connecting the crossbearer, the drive connecting rod rotates to be installed on connecting the crossbearer, the output and the coaxial fixed connection of drive connecting rod of motor, slidable mounting has the drive bevel gear on the drive connecting rod, locking screw is installed to the last screw thread of drive bevel gear, locking screw's tip and drive connecting rod contact setting, the one end fixed mounting of binding head has driven bevel gear, driven bevel gear and drive bevel gear meshing.
Furthermore, the binding head comprises a rotating shaft rod and a rotating shaft sleeve sleeved on the rotating shaft rod, a sliding block is arranged on the binding pressing frame in a sliding mode, the rotating shaft sleeve is fixedly installed on the sliding block, a locking screw is installed on the sliding block in a threaded mode, the end portion of the locking screw is in contact with the binding pressing frame, a driven bevel gear is fixedly installed at one end of the rotating shaft rod, and a threaded drill bit is detachably installed at the other end of the rotating shaft rod.
Furthermore, the one end fixed mounting who does not install driven bevel gear on the rotation axis pole has the connecting seat, the one end fixed mounting of screw drill has the fixing base, there is elastic convex block the bilateral symmetry of fixing base through spring coupling, fixed surface installs the commentaries on classics piece of ending on the fixing base, set up the holding opening who is used for holding the fixing base on the connecting seat, the joint recess that is used for holding elastic convex block is seted up to holding opening's both sides, holding opening's bottom is seted up and is ended the commentaries on classics groove of commentaries on classics piece complex.
Further, bind the seat including binding the connection pad, bind the central point department of putting of connection pad and seted up the drill bit recess, horizontal through-hole has been seted up to the bottom bilateral symmetry of drill bit recess, the horizontal through-hole inboard is connected with the joint round pin through supporting spring, the connection of after section of joint round pin has the connecting rod, the connecting rod extends to the horizontal through-hole outside, the last circumference of screw drill is offered and is used for holding the ring groove of joint round pin head.
Further, bind a stop device and include binding frame, binding frame is last to have seted up the spacing groove, spacing inslot fixed mounting has the regulation slide bar, slidable mounting has the binding base on the regulation slide bar, bind and seted up connecting groove on the base, bind the connection pad setting in connecting groove, bind the threaded mounting on the base and have locking screw, locking screw and the contact setting of spacing groove bottom.
Furthermore, compress tightly fixing device includes fixed pressing plate, fixed pressing plate passes through guide post slidable mounting on binding pressure frame, the guide post overcoat is equipped with reset spring, reset spring one end fixed mounting is on binding pressure frame, and other end fixed mounting is on fixed pressing plate.
In order to conveniently adjust the positions of the binding seat and the binding head, the binding seat and the binding head are arranged correspondingly, the binding frame and the binding pressing frame are both fixedly provided with graduated scales, and 0 graduation lines of the two graduated scales are overlapped.
Furthermore, the lifting assembly is an electric control telescopic rod.
The utility model has the advantages that the detachable automatic binding device for the test paper correction realizes the automatic binding of the test paper, and can drive the joint pin to rebound through the connecting rods on the two sides of the pull binding connecting disc after the binding so as to automatically take the binding connecting disc off from the thread drill bit on the binding connecting seat, thereby being more convenient to disassemble, not causing the bound test paper to be torn, and being capable of repeatedly using the binding connecting disc and the binding connecting seat after the disassembly and the taking out, thereby saving the cost; this a binding connection pad that can dismantle automatic binding means for paper wholesale can cooperate and bind the base and adjust wantonly in the rectangle recess of binding in the frame, and the head of binding simultaneously can be adjusted on binding the pressure frame to can satisfy the binding needs of different positions when binding the paper, convenience more when binding the operation, the increase should be used for the application scope of the dismantled automatic binding means that the paper was wholesale changed, improves its practicality.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a two-dimensional schematic view of the present invention;
FIG. 2 is a three-dimensional schematic view of the binding of the present invention;
FIG. 3 is a front view of the stapling head of the present invention;
FIG. 4 is a front view of a thread drill bit in the stapling head of the present invention;
fig. 5 is a plan view of the binding seat stopper of the present invention;
fig. 6 is a three-dimensional schematic view of a middle binding base according to the present invention.
In the figure: 1. the binding machine comprises a binding seat, 1-1 binding connecting disc, 1-1-1 drill bit groove, 1-1-2 horizontal through holes, 1-2 clamping pins, 1-3 supporting springs and 1-4 connecting rods, wherein the binding seat is fixedly connected with the binding seat;
2. the binding head comprises a binding head, 2-1 parts of a rotating shaft rod, 2-2 parts of a rotating shaft sleeve, 2-3 parts of a sliding block, 2-4 parts of a thread drill bit, 2-4-1 parts of an annular clamping groove, 2-5 parts of a connecting seat, 2-6 parts of a fixed seat, 2-7 parts of an elastic lug, 2-8 parts of a rotation stopping block and 2-9 parts of a spring;
3. 3-1 parts of a binding head rotary lifting device, 3-1 parts of a fixed base, 3-2 parts of a connecting cross frame, 3-3 parts of a lifting assembly, 3-4 parts of a binding pressure frame, 3-5 parts of a motor, 3-6 parts of a driving connecting rod, 3-7 parts of a driving bevel gear and 3-8 parts of a driven bevel gear;
4. the binding machine comprises a binding seat limiting device, a binding frame, an adjusting slide rod, a binding base and a connecting groove, wherein the binding seat limiting device is 4-1, the binding frame is 4-2, the adjusting slide rod is 4-3, and the connecting groove is 4-3-1;
5. the device comprises a pressing fixing device, 5-1 parts of a fixing pressure plate, 5-2 parts of a guide column, 5-3 parts of a return spring, 6 parts of a locking screw and 7 parts of a graduated scale.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
As shown in figure 1, the detachable automatic binding device for correcting the test paper comprises a binding seat 1 and a binding head 2 for putting on the test paper, wherein the binding seat 1 is detachably connected with the binding head 2, the binding head 2 comprises a rotating shaft rod 2-1 and a rotating shaft sleeve 2-2 sleeved on the rotating shaft rod 2-1, a dovetail groove or a T-shaped groove is formed in a binding pressure frame 3-4, a sliding block 2-3 matched with the dovetail groove or the T-shaped groove is arranged in the dovetail groove or the T-shaped groove in a sliding clamping manner, the rotating shaft sleeve 2-2 is fixedly arranged on the sliding block 2-3, a locking screw 6 is arranged on the sliding block 2-3 in a threaded manner, the end part of the locking screw 6 is arranged in contact with the bottom of the dovetail groove or the T-shaped groove in the binding pressure frame 3-4, the sliding block 2-3 can move in the dovetail groove or the T-, and (3) screwing a locking screw 6 to press the bottom of the dovetail groove or the T-shaped groove, fixing the sliding block 2-3, fixing the rotating shaft sleeve 2-2 on the binding pressing frame 3-4, finally realizing the fixation after the adjustment of the binding head 2, fixedly mounting a driven bevel gear 3-8 at one end of the rotating shaft rod 2-1, and detachably mounting a threaded drill 2-4 at the other end as shown in figure 3. The connecting seat 2-5 is fixedly installed at one end, where the driven bevel gear 3-8 is not installed, of the rotating shaft rod 2-1, the fixing seat 2-6 is fixedly installed at one end of the threaded drill bit 2-4, the elastic bumps 2-7 are symmetrically connected to two sides of the fixing seat 2-6 through the springs 2-9, the rotation stopping block 2-8 is fixedly installed on the upper surface of the fixing seat 2-6, as shown in fig. 4, an accommodating opening for accommodating the fixing seat 2-6 is formed in the connecting seat 2-5, clamping grooves for accommodating the elastic bumps 2-7 are formed in two sides of the accommodating opening, and the rotation stopping groove matched with the rotation stopping block 2-8 is formed in the bottom of the accommodating opening.
The binding seat 1 comprises a binding connecting disc 1-1, as shown in figure 2, a drill bit groove 1-1-1 is formed in the center of the binding connecting disc 1-1, horizontal through holes 1-1-2 are symmetrically formed in two sides of the bottom of the drill bit groove 1-1-1, a clamping pin 1-2 is connected to the inner side of the horizontal through hole 1-1-2 through a supporting spring 1-3, a connecting rod 1-4 is connected to the tail of the clamping pin 1-2, the connecting rod 1-4 extends to the outer side of the horizontal through hole 1-1-2, and an annular clamping groove 2-4-1 for containing the head of the clamping pin 1-2 is circumferentially formed in the thread drill bit 2-4.
The utility model also comprises a binding head rotary lifting device 3, a binding seat limiting device 4 and a pressing and fixing device 5, wherein the binding head 2 is rotatably arranged on the binding head rotary lifting device 3, and the binding head rotary lifting device 3 is used for driving the binding head 2 to rotate and lift along the central axis of the binding head; the lifting mechanism comprises a fixed base 3-1 and a connecting cross frame 3-2, a lifting component 3-3 is fixedly arranged between the fixed base 3-1 and the connecting cross frame 3-2, the lifting component 3-3 is an electric control telescopic rod, and the lifting component 3-3 drives the fixed base 3-1 and the connecting cross frame 3-2 to mutually approach or depart; the rotating mechanism comprises a binding pressure frame 3-4, the binding pressure frame 3-4 is fixedly arranged on a connecting cross frame 3-2, at least two binding heads 2 are rotatably arranged on the binding pressure frame 3-4, the at least two binding heads 2 are arranged at intervals, a rotating assembly is fixedly arranged on the connecting cross frame 3-2 and drives the at least two binding heads 2 to rotate respectively at the same time, the rotating assembly comprises a motor 3-5 and a driving connecting rod 3-6, the motor 3-5 is fixedly arranged on the connecting cross frame 3-2, the driving connecting rod 3-6 is rotatably arranged on the connecting cross frame 3-2, the output end of the motor 3-5 is coaxially and fixedly connected with the driving connecting rod 3-6, a driving bevel gear 3-7 is slidably arranged on the driving connecting rod 3-6, and a locking screw 6 is arranged on the driving bevel gear 3-7 in a threaded manner, the end part of the locking screw 6 is arranged in contact with the driving connecting rod 3-6, the driving bevel gear 3-7 is fixed after being adjusted through the arrangement of the locking screw 6, one end of the binding head 2 is fixedly provided with a driven bevel gear 3-8, and the driven bevel gear 3-8 is meshed with the driving bevel gear 3-7.
The binding seat limiting device 4 is positioned right below the binding head rotating and lifting device 3, the binding seat 1 is detachably arranged in the binding seat limiting device 4, the binding seat limiting device 4 is used for limiting the binding seat 1 to rotate along the binding seat, the binding seat limiting device 4 comprises a binding frame 4-1, as shown in figure 5, a limiting groove is formed in a binding frame 4-1, an adjusting slide bar 4-2 is fixedly installed in the limiting groove, a binding base 4-3 is slidably installed on the adjusting slide bar 4-2, a connecting groove 4-3-1 is formed in the binding base 4-3, a binding connecting disc 1-1 is arranged in the connecting groove 4-3-1, a locking screw 6 is installed on the binding base 4-3 in a threaded mode, the locking screw 6 is arranged in contact with the bottom of the limiting groove, and the binding base 4-3 is fixed after adjustment through the locking screw 6.
The pressing and fixing device 5 is fixedly arranged on the binding head rotary lifting device 3 and is used for pressing and fixing the test paper on the binding seat limiting device 4. The pressing and fixing device 5 comprises a fixing pressing plate 5-1, the fixing pressing plate 5-1 is slidably mounted on the binding pressing frame 3-4 through a guide post 5-2, a reset spring 5-3 is sleeved outside the guide post 5-2, one end of the reset spring 5-3 is fixedly mounted on the binding pressing frame 3-4, and the other end of the reset spring is fixedly mounted on the fixing pressing plate 5-1.
The binding frame 4-1 and the binding pressing frame 3-4 are both fixedly provided with graduated scales 7, and 0 graduation lines of the two graduated scales 7 are overlapped.
The utility model discloses an application procedure does: before binding, according to the test paper specification size, adjust the utility model discloses: arranging the test paper to be bound on a fixing base 3-1, covering one side of the test paper on a binding frame 4-1, arranging a binding seat 1 in the binding base 4-3, enabling a thread drill 2-4 in a binding head 2 to be arranged corresponding to a drill groove 1-1-1 in a binding connecting disc 1-1, fixing the binding base 4-3 and the binding head 2 by using a locking screw 6, then enabling a driving bevel gear 3-7 to be meshed with a driven bevel gear 3-8 in the binding head 2, and fixing the driving bevel gear 3-7 by using the locking screw 6;
when binding, a motor 3-5 is started, the motor 3-5 drives a driving connecting rod 3-6 to rotate, the driving connecting rod 3-6 drives a driven bevel gear 3-8 on a binding head 2 to rotate through a driving bevel gear 3-7 on the driving connecting rod, the driven bevel gear 3-8 drives a thread drill bit 2-4 to rotate through a rotating shaft rod 2-1, meanwhile, an electric control telescopic rod drives a binding pressure frame 3-4 to press downwards, the binding pressure frame 3-4 drives a fixed pressure plate 5-1 to press downwards, the fixed pressure plate 5-1 presses a test paper on the binding frame 4-1, the binding pressure frame 3-4 continues to press downwards, the thread drill bit 2-4 drills the test paper and is embedded into a drill bit groove 1-1-1-1 on the binding connecting disc 1-1, and a clamping pin 1-2 on the inner side of the binding connecting disc 1-1 is clamped in the supporting spring 1-3 Automatically clamped in an annular clamping groove 2-4-1 on the thread drill 2-4, and the binding head 2 is detachably connected with the binding to complete the binding of the test paper;
when the binding connecting disc is disassembled, the connecting rods 1-4 on the two sides of the binding connecting disc 1-1 are pulled, the connecting rods 1-4 drive the clamping pins 1-2 to rebound, so that the binding connecting disc 1-1 is automatically removed from the thread drill 2-4 on the binding connecting seat 2-5, the disassembly is more convenient, and the bound test paper cannot be torn.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. The utility model provides a can dismantle automatic binding means for examination paper wholesale, includes binding seat (1) and binding head (2) that are used for wearing the examination paper, binding seat (1) can dismantle with binding head (2) and be connected its characterized in that: further comprising:
the binding head rotating and lifting device (3), the binding head (2) is rotatably arranged on the binding head rotating and lifting device (3), and the binding head rotating and lifting device (3) is used for driving the binding head (2) to rotate and lift along the central axis of the binding head;
the binding seat limiting device (4) is positioned under the binding head rotating and lifting device (3), the binding seat (1) is detachably mounted in the binding seat limiting device (4), and the binding seat limiting device (4) is used for limiting the binding seat (1) to rotate along the binding seat (1);
and the pressing fixing device (5) is fixedly arranged on the binding head rotating and lifting device (3) and is used for pressing and fixing the test paper on the binding seat limiting device (4).
2. The detachable automatic binding apparatus for test paper modification according to claim 1, wherein: the stapling head rotary lifting device (3) comprises:
the lifting mechanism: the lifting mechanism comprises a fixed base (3-1) and a connecting transverse frame (3-2), a lifting assembly (3-3) is fixedly arranged between the fixed base (3-1) and the connecting transverse frame (3-2), and the lifting assembly (3-3) drives the fixed base (3-1) and the connecting transverse frame (3-2) to approach or separate from each other;
the binding and binding device comprises a rotating mechanism, wherein the rotating mechanism comprises a binding and pressing frame (3-4), the binding and pressing frame (3-4) is fixedly installed on a connecting transverse frame (3-2), at least two binding heads (2) are installed on the binding and pressing frame (3-4) in a rotating mode, the at least two binding heads (2) are arranged at intervals, a rotating assembly is fixedly installed on the connecting transverse frame (3-2), and the rotating assembly drives the at least two binding heads (2) to rotate respectively.
3. The detachable automatic binding apparatus for test paper modification according to claim 2, wherein: the rotating component comprises a motor (3-5) and a driving connecting rod (3-6), the motor (3-5) is fixedly arranged on the connecting transverse frame (3-2), the driving connecting rods (3-6) are rotatably arranged on the connecting transverse frame (3-2), the output ends of the motors (3-5) are coaxially and fixedly connected with the driving connecting rods (3-6), a driving bevel gear (3-7) is slidably arranged on the driving connecting rod (3-6), a locking screw (6) is arranged on the driving bevel gear (3-7) in a threaded manner, the end part of the locking screw (6) is contacted with the driving connecting rod (3-6), one end of the binding head (2) is fixedly provided with a driven bevel gear (3-8), and the driven bevel gear (3-8) is meshed with a driving bevel gear (3-7).
4. The detachable automatic binding apparatus for test paper modification according to claim 3, wherein: the binding head (2) comprises a rotating shaft rod (2-1) and a rotating shaft sleeve (2-2) sleeved on the rotating shaft rod (2-1), a sliding block (2-3) is arranged on a binding pressure frame (3-4) in a sliding manner, the rotating shaft sleeve (2-2) is fixedly installed on the sliding block (2-3), a locking screw (6) is installed on the sliding block (2-3) in a threaded manner, the end part of the locking screw (6) is in contact with the binding pressure frame (3-4), a driven bevel gear (3-8) is fixedly installed at one end of the rotating shaft rod (2-1), and a thread drill bit (2-4) is detachably installed at the other end of the rotating shaft rod.
5. The detachable automatic binding apparatus for test paper modification according to claim 4, wherein: the thread drill is characterized in that a connecting seat (2-5) is fixedly mounted at one end, not provided with a driven bevel gear (3-8), of the rotating shaft rod (2-1), a fixing seat (2-6) is fixedly mounted at one end of the thread drill (2-4), elastic lugs (2-7) are connected to two sides of the fixing seat (2-6) symmetrically through springs (2-9), a rotation stopping block (2-8) is fixedly mounted on the upper surface of the fixing seat (2-6), an accommodating opening used for accommodating the fixing seat (2-6) is formed in the connecting seat (2-5), clamping grooves used for accommodating the elastic lugs (2-7) are formed in two sides of the accommodating opening, and rotation stopping grooves matched with the rotation stopping block (2-8) are formed in the bottom of the accommodating opening.
6. The detachable automatic binding apparatus for test paper modification according to claim 5, wherein: the binding seat (1) comprises a binding connecting disc (1-1), a drill bit groove (1-1-1) is arranged at the central position of the binding connecting disc (1-1), horizontal through holes (1-1-2) are symmetrically arranged at two sides of the bottom of the drill bit groove (1-1-1), the inner side of the horizontal through hole (1-1-2) is connected with a clamping pin (1-2) through a supporting spring (1-3), the tail part of the clamping pin (1-2) is connected with a connecting rod (1-4), the connecting rod (1-4) extends to the outer side of the horizontal through hole (1-1-2), and an annular clamping groove (2-4-1) for accommodating the head of the clamping pin (1-2) is formed in the circumferential direction of the threaded drill bit (2-4).
7. The detachable automatic binding apparatus for test paper modification according to claim 6, wherein: binding seat stop device (4) is including binding frame (4-1), the spacing groove has been seted up on binding frame (4-1), spacing inslot fixed mounting has adjusting slide bar (4-2), slidable mounting has binding base (4-3) on adjusting slide bar (4-2), binding base (4-3) is last to have seted up connecting groove (4-3-1), binding connection pad (1-1) sets up in connecting groove (4-3-1), binding base (4-3) is gone up the screw thread and is installed locking screw (6), locking screw (6) and the contact setting of spacing groove bottom.
8. The detachable automatic binding apparatus for test paper modification according to claim 7, wherein: the pressing and fixing device (5) comprises a fixing pressing plate (5-1), the fixing pressing plate (5-1) is slidably mounted on the binding pressing frame (3-4) through a guide post (5-2), a reset spring (5-3) is sleeved outside the guide post (5-2), one end of the reset spring (5-3) is fixedly mounted on the binding pressing frame (3-4), and the other end of the reset spring is fixedly mounted on the fixing pressing plate (5-1).
9. The detachable automatic binding apparatus for test paper modification according to claim 8, wherein: and the binding frame (4-1) and the binding pressing frame (3-4) are fixedly provided with graduated scales (7), and 0 graduation lines of the two graduated scales (7) are overlapped.
10. The detachable automatic binding apparatus for test paper modification according to claim 2, wherein: the lifting component (3-3) is an electric control telescopic rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922074276.5U CN211364020U (en) | 2019-11-26 | 2019-11-26 | Detachable automatic binding device for correcting test paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922074276.5U CN211364020U (en) | 2019-11-26 | 2019-11-26 | Detachable automatic binding device for correcting test paper |
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| Publication Number | Publication Date |
|---|---|
| CN211364020U true CN211364020U (en) | 2020-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922074276.5U Active CN211364020U (en) | 2019-11-26 | 2019-11-26 | Detachable automatic binding device for correcting test paper |
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| CN (1) | CN211364020U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114568801A (en) * | 2022-02-23 | 2022-06-03 | 重庆工业职业技术学院 | Install handle additional suitable for cylinder cavity umbrella stick |
-
2019
- 2019-11-26 CN CN201922074276.5U patent/CN211364020U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114568801A (en) * | 2022-02-23 | 2022-06-03 | 重庆工业职业技术学院 | Install handle additional suitable for cylinder cavity umbrella stick |
| CN114568801B (en) * | 2022-02-23 | 2023-05-23 | 重庆工业职业技术学院 | Install handle additional suitable for cylinder cavity umbrella stick |
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