CN213677837U - Anti-falling and dust-proof box for notebook computer - Google Patents
Anti-falling and dust-proof box for notebook computer Download PDFInfo
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- CN213677837U CN213677837U CN202021291692.7U CN202021291692U CN213677837U CN 213677837 U CN213677837 U CN 213677837U CN 202021291692 U CN202021291692 U CN 202021291692U CN 213677837 U CN213677837 U CN 213677837U
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Abstract
The utility model provides a notebook computer prevents falling dust proof box belongs to computer case technical field. The anti-falling dust-proof box for the notebook computer comprises a protective box and a fixing component. The protective box comprises a box body and a box cover. The fixed subassembly includes the holder, compresses tightly the piece, places board and elastic cushion. Rotatory first rotating member drives first threaded rod and rotates, it removes to the centre to drive first thread bush again, and then drive first guide pin bushing, first spring and first slide bar and splint remove, press from both sides the computer tightly, can carry out the shock attenuation buffering to the ascending impact of horizontal direction when the collision, rotatory second rotating member drives the second threaded rod and rotates, make second thread bush remove downwards, it drives the second guide pin bushing again, the second spring, second slide bar and clamp plate move downwards in step, compress tightly the computer, can carry out the shock attenuation buffering to the ascending impact of vertical side when the collision. The device is suitable for notebook computers with different sizes, and has better anti-falling performance.
Description
Technical Field
The utility model relates to a computer case technical field particularly, relates to notebook computer prevents falling dust proof box.
Background
A notebook computer case is a case for storing notebook computers, and can well store the built-in computers so as to prevent the computers from being damaged due to impact, friction or other external force factors in the transportation process.
However, most of existing notebook computer cases only have a basic placement function, and achieve the purpose of falling prevention through some internal fillers, so that the notebook computers with different sizes cannot be attached and fixed, and when collision occurs, a larger gap is generated between the notebook computer with a smaller size and surrounding buffering objects, so that the protection performance of the case body on the notebook computer is reduced.
SUMMERY OF THE UTILITY MODEL
In order to compensate the above deficiency, the utility model provides a notebook computer prevents falling dust-proof box aims at improving current notebook computer case and can not laminate fixedly to the notebook computer of unidimensional not, the relatively poor problem of barrier propterty.
The utility model discloses a realize like this:
the utility model provides a notebook computer prevents falling dust proof box, including protective housing and fixed subassembly.
The protective box comprises a box body and a box cover, wherein the box cover is rotatably arranged on the box body.
The fixing component comprises a clamping piece, a pressing piece, a placing plate and an elastic cushion pad, the clamping piece comprises a first threaded rod, a first rotating piece, a first threaded sleeve, a first guide sleeve, a first spring, a first sliding rod and a clamping plate, a cavity is formed in the bottom of the box body, the first threaded rod is rotatably arranged in the cavity, the end part of the first threaded rod is fixedly connected with the first rotating piece, the two first threaded sleeves are in threaded sleeve connection with the first threaded rod, the first guide sleeve is fixedly connected with the first threaded sleeve, the first sliding rod is connected with the first guide sleeve through the first spring, the clamping plate is fixed at the end part of the first sliding rod, the pressing piece comprises a threaded sleeve, a second threaded rod, a second rotating piece, a second threaded sleeve, a second guide sleeve, a second spring, a second sliding rod and a pressing plate, the threaded sleeve is fixedly arranged on the lower surface of the box cover, the second threaded rod is rotatably arranged in the threaded sleeve, the second rotating piece is fixed to the top end of the second threaded rod, the second threaded sleeve is in threaded sleeve connection with the second threaded sleeve, the top end of the second guide sleeve is fixedly connected with the bottom of the second threaded sleeve, the second sliding rod is connected with the second guide sleeve through the second spring, the pressing plate is fixedly arranged at the bottom end of the second sliding rod, the placing plate is fixedly arranged at the bottom in the box body, and the elastic buffer pad is fixed to the upper surface of the placing plate.
The utility model discloses an in one embodiment, the protective housing still includes articulated elements, sealing member and handheld portion, the case lid passes through the articulated elements with the box rotates to be connected, the sealing member is fixed to be set up the case lid with the kneck of box, the fixed setting of handheld portion is in box outer wall lateral part.
The utility model discloses an in one embodiment, the sealing member includes first sealing strip and second sealing strip, first sealing strip is fixed box inner wall top, the second sealing strip is fixed case lid lower surface one side, first sealing strip with second sealing strip overlap joint.
The utility model discloses an in one embodiment, the handheld portion includes fixed axle and handheld portion body, first recess has been seted up to box outer wall lateral part, the fixed axle is fixed to be set up in the first recess, handheld portion body with the fixed axle rotates to be connected.
The utility model discloses an in one embodiment, the handheld portion still includes first antiskid cover, first antiskid cover is located on the handheld portion body.
The utility model discloses an in one embodiment, first rotating member includes first rotating member body and second antiskid cover, the second recess has been seted up on the box outer wall lateral part, first rotating member body is located in the second recess, second antiskid cover is located on the first rotating member body.
In an embodiment of the present invention, the first thread bush includes a first thread bush body and a first fixing rod, and the first thread bush body passes through the first fixing rod and the first guide sleeve fixed connection.
In an embodiment of the present invention, the clamping plate includes a first plate body and a first non-slip mat, the first non-slip mat is fixed to be disposed on a surface of the first plate body, the clamping plate includes a second plate body and a second non-slip mat, and the second non-slip mat is fixed to be disposed on a lower surface of the second plate body.
The utility model discloses an in one embodiment, the second rotating member includes second rotating member body and third sliding sleeve, the third recess has been seted up to the case lid upper surface, the second rotating member body is located in the third recess, the third sliding sleeve cover is established on the second rotating member body.
In an embodiment of the present invention, the second thread bushing includes a second thread bushing body and a second fixing rod, the second fixing rod is fixedly disposed at a side portion of the second thread bushing body, and the second fixing rod runs through the thread bushing side wall.
The utility model has the advantages that: the utility model discloses a notebook computer that obtains through above-mentioned design prevents falling dust proof box, when using, open the case lid, put the notebook computer on placing the board, rotatory first rotating member drives first threaded rod and rotates, and then drive two first thread bush on the first threaded rod and move to the centre, and then drive first guide pin bushing, first spring and first slide bar and splint to move to the notebook computer simultaneously, press from both sides with the computer clamp fixed, the first spring after the fixing is in the compression state, can carry out the shock attenuation buffering to the impact in the notebook computer horizontal direction when colliding, then close the case lid, rotatory second rotating member drives second threaded rod and rotates, makes the second thread bush on the second threaded rod move downwards, again drive second guide pin bushing, second spring, second slide bar and clamp plate move downwards in step, accomplish compressing tightly fixed to the computer, the second spring after the fixing is in the compression state, elastic buffer pad on the board is placed in the cooperation, can carry out the shock attenuation buffering to the ascending impact of notebook computer vertical side when the collision, and this device is applicable to not unidimensional notebook computer, and it is better to prevent falling the performance.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural view of a notebook computer crash-proof and dust-proof box according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a protective box according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a fixing assembly according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a clamping member according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a pressing member according to an embodiment of the present invention.
In the figure: 100-a protective box; 110-a box body; 120-box cover; 130-a hinge; 140-a seal; 141-a first sealing strip; 142-a second sealing strip; 150-a hand-held portion; 151-fixed shaft; 152-a handpiece body; 153-a first groove; 154-a first anti-slip sleeve; 200-a stationary component; 210-a clamp; 211-a first threaded rod; 212-a first rotating member; 2121-a first rotor body; 2122-a second anti-slip cover; 2123-a second groove; 213-a first threaded sleeve; 2131-a first thread sleeve body; 2132-a first fixing rod; 214-a first guide sleeve; 215-a first spring; 216-a first slide bar; 217-clamp plate; 2171-a first plate body; 2172 — first cleat; 220-a compression member; 221-a threaded sleeve; 222-a second threaded rod; 223-a second rotating member; 2231-a second swivel body; 2232-third sliding sleeve; 2233-a third groove; 224-a second threaded sleeve; 2241-a second thread bush body; 2242-a second fixing rod; 225-second guide sleeve; 226-a second spring; 227-a second slide bar; 228-a platen; 2281 — a second plate body; 2282 — a second cleat; 230-placing the plate; 240-a resilient cushion; 250-cavity.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but 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.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Examples
Referring to fig. 1-5, the present invention provides a technical solution: notebook computer prevents falling dust proof box, including protective housing 100 and fixed subassembly 200, fixed subassembly 200 sets up in protective housing 100, can fix the notebook computer of placing it in, has shock attenuation buffer function.
Referring to fig. 2, the protective box 100 includes a box body 110 and a box cover 120, the box cover 120 is rotatably disposed on the box body 110, both the box body 110 and the box cover 120 are made of aluminum, the protective box 100 further includes a hinge 130, a sealing member 140 and a handheld portion 150, the box cover 120 is rotatably connected to the box body 110 through the hinge 130, the other side of the box cover 120 is locked by a locking member, the sealing member 140 is fixedly disposed at an interface between the box cover 120 and the box body 110, the sealing member 140 includes a first sealing strip 141 and a second sealing strip 142, the first sealing strip 141 is fixed at the top of the inner wall of the box body 110, the second sealing strip 142 is fixed at one side of the lower surface of the box cover 120, the first sealing strip 141 is overlapped with the second sealing strip 142 to prevent dust from entering from the interface between the box cover 120 and the box body 110, the handheld portion 150 is fixedly disposed at a, the fixed axle 151 is fixedly arranged in the first groove 153, the handheld part body 152 is rotatably connected with the fixed axle 151, the handheld part 150 further comprises a first anti-slip sleeve 154, the first anti-slip sleeve 154 is a rubber sleeve, the handheld part body 152 is sleeved with the first anti-slip sleeve 154, the hand gripping friction force is increased, and the handheld part body 152 is embedded in the first groove 153 and can reduce collision and abrasion.
Referring to fig. 3-5, the fixing assembly 200 includes a clamping member 210, a pressing member 220, a placing plate 230 and an elastic cushion 240, the clamping member 210 includes a first threaded rod 211, a first rotating member 212, a first threaded sleeve 213, a first guide sleeve 214, a first spring 215, a first sliding rod 216 and a clamping plate 217, a cavity 250 is formed in the bottom of the case 110, the first threaded rod 211 is rotatably disposed in the cavity 250, an end of the first threaded rod 211 is fixedly connected to the first rotating member 212, the first rotating member 212 includes a first rotating member body 2121 and a second anti-slip sleeve 2122, the second anti-slip sleeve 2122 is a rubber sleeve, a second groove 2123 is formed on a lateral portion of an outer wall of the case 110, the first rotating member body 2121 is disposed in the second groove 2123 to avoid collision and abrasion, the second anti-slip sleeve 2122 is sleeved on the first rotating member body 2121 to increase a contact friction force, both the first threaded sleeves 213 are threadedly sleeved on the first threaded rod 211, the first guide sleeve 214 is fixedly connected with the first threaded sleeve 213, the first threaded sleeve 213 includes a first threaded sleeve body 2131 and a first fixing rod 2132, the first threaded sleeve body 2131 is fixedly connected with the first guide sleeve 214 through the first fixing rod 2132, the first sliding rod 216 is connected with the first guide sleeve 214 through a first spring 215, the clamp 217 is fixed at the end of the first sliding rod 216, the clamp 217 includes a first plate 2171 and a first anti-slip pad 2172, the first anti-slip pad 2172 is a rubber pad, the first anti-slip pad 2172 is fixedly disposed on the surface of the first plate 2171, so as to enhance the contact friction with the side of the computer and play a role of soft contact, the first rotating body 2121 is rotated to drive the first threaded rod to rotate, then the two first threaded sleeve bodies 2131 on the first threaded rod 211 are driven to move towards the middle, and the first guide sleeve 214, the first sliding rod 215, the first sliding rod 216 and the first plate body 2171 are driven to move simultaneously through the first fixing rod 2132, the computer is clamped from both sides, and the first spring 215 is in a compressed state after the fixation.
It should be specifically noted that the pressing member 220 includes a threaded sleeve 221, a second threaded rod 222, a second rotating member 223, a second threaded sleeve 224, a second guide sleeve 225, a second spring 226, a second sliding rod 227 and a pressing plate 228, the threaded sleeve 221 is fixedly disposed on the lower surface of the lid 120, the second threaded rod 222 is rotatably disposed in the threaded sleeve 221, the second rotating member 223 is fixed on the top end of the second threaded rod 222, the second rotating member 223 includes a second rotating member body 2231 and a third sliding sleeve 2232, the third sliding sleeve 2232 is a rubber sleeve, a third groove 2233 is disposed on the upper surface of the lid 120, the second rotating member body 2231 is disposed in the third groove 2233, the second rotating member body 2231 is embedded in the third groove 2233, so as to avoid collision and wear, the third sliding sleeve 2 is sleeved on the second rotating member body 2231, so as to increase contact friction force and facilitate holding the second threaded sleeve 224 is threadedly sleeved on the second threaded rod 222, the second screw sleeve 224 comprises a second screw sleeve body 2241 and a second fixing rod 2242, the second fixing rod 2242 is fixedly arranged at the side of the second screw sleeve body 2241, the second fixing rod 2242 is arranged through the side wall of the screw sleeve 221 to ensure the stability of one end of the second screw sleeve body 2241, the top end of the second guide sleeve 225 is fixedly connected with the bottom of the second screw sleeve 224, the second slide bar 227 is connected with the second guide sleeve 225 through a second spring 226, the pressing plate 228 is fixedly arranged at the bottom end of the second slide bar 227, the pressing plate 228 comprises a second plate body 2281 and a second non-slip pad 2282, the second non-slip pad 2282 is a rubber pad, the second non-slip pad 2282 is fixed at the lower surface of the second plate body 2281, so as to enhance the contact friction with the upper surface of the computer and play a role of soft contact, the placing plate 230 is fixedly arranged at the bottom inside the box 110, the elastic cushion 240 is fixed at the upper surface of the placing plate 230, the second rotating body 2231 is rotated to drive the second threaded rod 222 to rotate, so that the second threaded sleeve 2241 on the second threaded rod 222 moves downwards, and then drives the second guide sleeve 225, the second spring 226, the second slide bar 227 and the second plate 2281 to synchronously move downwards, thereby completing the pressing and fixing of the computer, and the second spring 226 is in a compressed state after the fixing.
Specifically, this notebook computer prevents falling the theory of operation of dust proof box: when the notebook computer compression box is used, the box cover 120 is opened, the notebook computer is placed on the placing plate 230, the first rotating piece body 2121 is rotated to drive the first threaded rod 211 to rotate, then the two first threaded sleeve bodies 2131 on the first threaded rod 211 are driven to move towards the middle, the first fixing rod 2132 drives the first guide sleeve 214, the first spring 215, the first sliding rod 216 and the first plate 2171 to move simultaneously, the computer is clamped and fixed from two sides, the fixed first spring 215 is in a compressed state and can absorb shock and buffer impact of the notebook computer in the horizontal direction during collision, then the box cover 120 is closed, the second rotating piece body 2231 is rotated to drive the second threaded rod 222 to rotate, so that the second threaded sleeve body 2241 on the second threaded rod 222 moves downwards, then the second guide sleeve 225, the second spring 226, the second sliding rod 227 and the second plate 2281 move downwards synchronously, and the compression and fixation of the computer is completed, the fixed second spring 226 is in a compressed state, and is matched with the elastic cushion 240 on the placing plate 230, so that the impact in the vertical direction of the notebook computer can be damped and buffered during collision.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The anti-falling dust-proof box for the notebook computer is characterized by comprising
The protective box (100) comprises a box body (110) and a box cover (120), wherein the box cover (120) is rotatably arranged on the box body (110);
the fixing assembly (200), the fixing assembly (200) comprises a clamping piece (210), a pressing piece (220), a placing plate (230) and an elastic cushion pad (240), the clamping piece (210) comprises a first threaded rod (211), a first rotating piece (212), a first threaded sleeve (213), a first guide sleeve (214), a first spring (215), a first sliding rod (216) and a clamping plate (217), a cavity (250) is formed in the bottom of the box body (110), the first threaded rod (211) is rotatably arranged in the cavity (250), the end of the first threaded rod (211) is fixedly connected with the first rotating piece (212), the two first threaded sleeves (213) are both in threaded sleeve connection with the first threaded rod (211), the first guide sleeve (214) is fixedly connected with the first threaded sleeve (213), and the first sliding rod (216) is connected with the first guide sleeve (214) through the first spring (215), the clamping plate (217) is fixed at the end of the first sliding rod (216), the pressing piece (220) comprises a threaded sleeve (221), a second threaded rod (222), a second rotating piece (223), a second threaded sleeve (224), a second guide sleeve (225), a second spring (226), a second sliding rod (227) and a pressing plate (228), the threaded sleeve (221) is fixedly arranged on the lower surface of the box cover (120), the second threaded rod (222) is rotatably arranged in the threaded sleeve (221), the second rotating piece (223) is fixed at the top end of the second threaded rod (222), the second threaded sleeve (224) is in threaded sleeve connection with the second threaded rod (222), the top end of the second guide sleeve (225) is fixedly connected with the bottom of the second threaded sleeve (224), and the second sliding rod (227) is connected with the second guide sleeve (225) through the second spring (226), the pressing plate (228) is fixedly arranged at the bottom end of the second sliding rod (227), the placing plate (230) is fixedly arranged at the inner bottom of the box body (110), and the elastic cushion pad (240) is fixedly arranged on the upper surface of the placing plate (230).
2. The notebook computer crash-proof and dust-proof box according to claim 1, wherein the protective box (100) further comprises a hinge (130), a sealing member (140) and a handheld portion (150), the box cover (120) is rotatably connected with the box body (110) through the hinge (130), the sealing member (140) is fixedly arranged at the interface of the box cover (120) and the box body (110), and the handheld portion (150) is fixedly arranged at the side portion of the outer wall of the box body (110).
3. The notebook computer crash-proof and dustproof box as claimed in claim 2, wherein the sealing element (140) comprises a first sealing strip (141) and a second sealing strip (142), the first sealing strip (141) is fixed on the top of the inner wall of the box body (110), the second sealing strip (142) is fixed on one side of the lower surface of the box cover (120), and the first sealing strip (141) is overlapped with the second sealing strip (142).
4. The notebook computer anti-falling dustproof box according to claim 2, wherein the handheld part (150) comprises a fixed shaft (151) and a handheld part body (152), a first groove (153) is formed in the side part of the outer wall of the box body (110), the fixed shaft (151) is fixedly arranged in the first groove (153), and the handheld part body (152) is rotatably connected with the fixed shaft (151).
5. The notebook computer crash-proof and dust-proof box according to claim 4, wherein the handheld portion (150) further comprises a first anti-slip sleeve (154), and the first anti-slip sleeve (154) is sleeved on the handheld portion body (152).
6. The notebook computer anti-falling dust-proof box according to claim 1, wherein the first rotating member (212) comprises a first rotating member body (2121) and a second anti-slip sleeve (2122), a second groove (2123) is formed on the outer wall side of the box body (110), the first rotating member body (2121) is located in the second groove (2123), and the second anti-slip sleeve (2122) is sleeved on the first rotating member body (2121).
7. The notebook computer crash-proof and dust-proof box as claimed in claim 1, wherein the first thread bushing (213) comprises a first thread bushing body (2131) and a first fixing rod (2132), and the first thread bushing body (2131) is fixedly connected with the first guide bushing (214) through the first fixing rod (2132).
8. The notebook computer crash-proof and dust-proof box according to claim 1, wherein the clamping plate (217) comprises a first plate body (2171) and a first non-slip mat (2172), the first non-slip mat (2172) is fixedly arranged on the surface of the first plate body (2171), the pressing plate (228) comprises a second plate body (2281) and a second non-slip mat (2282), and the second non-slip mat (2282) is fixedly arranged on the lower surface of the second plate body (2281).
9. The notebook computer anti-falling dustproof box according to claim 1, wherein the second rotating member (223) comprises a second rotating member body (2231) and a third sliding sleeve (2232), a third groove (2233) is formed in the upper surface of the box cover (120), the second rotating member body (2231) is located in the third groove (2233), and the third sliding sleeve (2232) is sleeved on the second rotating member body (2231).
10. The notebook computer anti-falling dustproof box according to claim 1, wherein the second threaded sleeve (224) comprises a second threaded sleeve body (2241) and a second fixing rod (2242), the second fixing rod (2242) is fixedly arranged at the side part of the second threaded sleeve body (2241), and the second fixing rod (2242) is arranged through the side wall of the threaded sleeve (221).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021291692.7U CN213677837U (en) | 2020-07-03 | 2020-07-03 | Anti-falling and dust-proof box for notebook computer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021291692.7U CN213677837U (en) | 2020-07-03 | 2020-07-03 | Anti-falling and dust-proof box for notebook computer |
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| CN213677837U true CN213677837U (en) | 2021-07-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117840602A (en) * | 2024-02-05 | 2024-04-09 | 江南大学 | Plastic laser marking device |
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2020
- 2020-07-03 CN CN202021291692.7U patent/CN213677837U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117840602A (en) * | 2024-02-05 | 2024-04-09 | 江南大学 | Plastic laser marking device |
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