CN115268591A - Assembling connecting piece for computer host and use method - Google Patents

Assembling connecting piece for computer host and use method Download PDF

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Publication number
CN115268591A
CN115268591A CN202210959783.0A CN202210959783A CN115268591A CN 115268591 A CN115268591 A CN 115268591A CN 202210959783 A CN202210959783 A CN 202210959783A CN 115268591 A CN115268591 A CN 115268591A
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China
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plate
circuit board
mounting
clamping
adjusting
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Pending
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CN202210959783.0A
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Chinese (zh)
Inventor
林长蒴
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Individual
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Individual
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Priority to CN202210959783.0A priority Critical patent/CN115268591A/en
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16Constructional details or arrangements
    • G06F1/18Packaging or power distribution
    • G06F1/183Internal mounting support structures, e.g. for printed circuit boards, internal connecting means

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Power Engineering (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing Of Electrical Connectors (AREA)

Abstract

The invention relates to the technical field of assembly of a computer host circuit board, in particular to an assembly connecting piece for a computer host and a using method thereof.A mounting plate is inserted on a guide rail in a sliding way, a pair of sliding chutes are arranged on the mounting plate, a pair of upper clamping blocks are inserted on the sliding chutes in a sliding way, a lower clamping strip is inserted at the lower end of the sliding chute in a sliding way, and a host circuit board is clamped between the upper clamping blocks and the lower clamping strip, which has the advantages that: through setting up the cooperation of grip block and lower centre gripping strip on the setting, realize the fixed centre gripping installation of circuit board, reach the height of adjusting down centre gripping strip through adjusting part down, thereby make the height of circuit board installation realize convenient the regulation, thereby adaptation in the position of computer machine case mounting hole, through the cooperation that sets up extrusion screw and clamp plate, reach the purpose of adjusting the mounting panel lateral position, make the circuit board accurately peg graft to the mounting hole position, thereby reach the purpose convenient, accurate installation circuit board.

Description

Assembly connecting piece for computer host and use method
Technical Field
The invention relates to the technical field of assembly of a circuit board of a computer mainframe, in particular to an assembly connecting piece for the computer mainframe and a using method thereof.
Background
In the installation process of the computer host, the circuit board is usually required to be installed on the board wall of the computer, and the common installation is mostly screw fastening installation.
During the installation process of the circuit board, a large number of USB sockets and other connection ports are disposed on the circuit board, and these ports usually need to penetrate through the board of the computer case to extend to the outside, so as to be convenient for use.
In actual installation, the mounted position required precision of circuit board is high, in order to avoid quick-witted incasement portion entering dust, socket size one-to-one on the mounting hole that sets up on the computer boxboard and the circuit board usually avoids producing the clearance, and current circuit board screw fastening installation back is difficult to adjust, when the installation computer boxboard, often causes the problem of socket and mounting hole dislocation to need dismantle the installation repeatedly.
Disclosure of Invention
The invention aims to provide an assembling connecting piece for a computer host and a using method thereof, which are used for solving the problem of accurate installation and adjustment of a circuit board.
In order to achieve the purpose, the invention provides the following technical scheme:
an assembly connector for a computer host, the assembly connector comprising:
the back plate is fixed on the wall of the computer case, a pair of guide rails which are symmetrical up and down are arranged on the back plate, an extrusion screw is inserted into one side of the back plate, and the end part of the extrusion screw is rotatably connected with a pressing plate;
the mounting plate is inserted on the guide rail in a sliding manner, a pair of sliding grooves is formed in the mounting plate, a pair of upper clamping blocks is inserted on the sliding grooves in a sliding manner, a lower clamping strip is inserted at the lower end of each sliding groove in a sliding manner, and a host circuit board is clamped and mounted between the upper clamping blocks and the lower clamping strip;
the lower adjusting assembly comprises an adjusting frame and a screw pipe, a first bevel gear and a second bevel gear which are connected in a vertical meshing mode are arranged in the adjusting frame, a rotating handle extending to the outer side of the adjusting frame is laterally inserted into the first bevel gear in a splicing mode, a screw rod is vertically fixedly inserted into the second bevel gear in a splicing mode, the upper end of the screw rod penetrates through the adjusting frame and is connected with the screw pipe in a threaded rotating mode, the upper end of the screw pipe is fixed to the lower end face of the lower clamping strip, and an inserting block inserted into the sliding groove is arranged on the lower clamping strip in a splicing mode.
Preferably, a pair of vertically welded and installed extension plates is arranged on the rear side of the installation plate in an up-down symmetrical manner, a T-shaped slot is formed in the end portion of each extension plate, and the slots are inserted in the guide rails in a sliding manner.
Preferably, the lower end of the upper clamping block is provided with a U-shaped clamping groove, the inner wall of the front end of the clamping groove is pressed on the front end face of the host circuit board, the inner wall of the rear end of the clamping groove is pressed on the rear end face of the mounting plate, and the inner wall of the upper end of the clamping groove is pressed on the upper end of the host circuit board.
Preferably, the vertical fixed welding of up end front end of going up the grip block has fixed end plate, and the up end rear side of going up the grip block is provided with the adjustment tank, vertical slip grafting is installed movable end plate on the adjustment tank, the horizontal width of fixed end plate and movable end plate is greater than the width of spout, passes through connecting bolt fixed connection between fixed end plate and the movable end plate.
Preferably, a side plate is vertically arranged on one side of the front end face of the back plate, a screw hole penetrates through the middle of the side plate, and the thread of the extrusion screw is rotatably inserted into the screw hole.
Preferably, the end part of the extrusion screw is rotatably connected with a bearing at one side of the pressing plate, the pressing plate is slidably mounted on the front end face of the back plate, and the pressing plate is pressed on the side wall of the mounting plate.
Preferably, the end face of the rear side of the upper clamping block is provided with a T-shaped insertion rod, the end part of the T-shaped insertion rod is inserted with a pressing block in a sliding mode, a vertical plate at the end part of the T-shaped insertion rod is inserted into an inner cavity of the pressing block, a limiting end plate is arranged at the port of the inner cavity of the pressing block, and a spring is pressed between the limiting end plate and the vertical plate of the T-shaped insertion rod.
Preferably, the spring is sleeved on a cross rod of the T-shaped insertion rod, the end part of the spring is pressed on a vertical plate of the T-shaped insertion rod, the outer wall of the pressing block is provided with a pair of rollers, and the rollers are pressed on the front end face of the back plate.
Preferably, the inner cavity of the adjusting frame is an adjusting inner cavity, the lower end of the screw rod is inserted into the adjusting inner cavity, and the outer wall of the lower end of the screw rod is rotatably connected with the inner wall of the adjusting inner cavity through a bearing.
A method for using the assembly connector for the computer mainframe, the method comprising the following steps:
the clamping piece is installed, the upper clamping block is inserted in the sliding groove in a sliding mode, the lower clamping strip is inserted at the lower end of the sliding groove in a sliding mode, and the lower end of the lower clamping strip is rotatably connected with the adjusting frame through a screw rod;
the circuit board clamping is to clamp and insert the host circuit board between the upper clamping block and the lower clamping strip, and the height of the lower clamping strip is adjusted through the rotation of the rotating handle, so that the purpose of adjusting the installation height of the host circuit board is achieved;
the back plate is installed, a back plate screw is installed on a computer case plate, the installation of the installation plate in a plugging mode is achieved through the matching of the guide rail and the slot, the extrusion screw is used for extruding the pressing plate, the transverse installation position of the installation plate is adjusted, and the plug connection position of the host circuit board corresponds to the installation hole of the computer case side plate.
Compared with the prior art, the invention has the beneficial effects that:
the invention realizes the fixed clamping and installation of the circuit board by arranging the matching of the upper clamping block and the lower clamping strip, and the height of the lower clamping strip is adjusted by the lower adjusting component, so that the installation height of the circuit board is conveniently adjusted, the circuit board is adapted to the position of the mounting hole of the computer case, the transverse position of the mounting plate is adjusted by arranging the matching of the extrusion screw and the pressing plate, the circuit board is accurately inserted to the position of the mounting hole, and the circuit board is conveniently and accurately installed.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1;
FIG. 3 is a schematic perspective view of an upper clamping block according to the present invention;
FIG. 4 is a perspective view of the mounting plate of the present invention;
FIG. 5 is a schematic perspective view of the present invention;
fig. 6 is a schematic perspective view of a back plate according to the present invention.
In the figure: 1. mounting a plate; 2. a back plate; 3. a host circuit board; 4. a chute; 5. an upper clamping block; 6. a lower clamping bar; 7. a clamping groove; 8. a guide rail; 9. an extension plate; 10. briquetting; 11. a roller; 12. a spring; 13. a solenoid; 14. a screw rod; 15. an adjusting frame; 16. adjusting the inner cavity; 17. a handle is rotated; 18. a first bevel gear; 19. a bearing; 20. a second bevel gear; 21. a slot; 22. inserting a block; 23. a side plate; 24. extruding the screw; 25. pressing a plate; 26. a screw hole; 27. fixing the end plate; 28. a connecting bolt; 29. a movable end plate; 30. an adjustment groove; 31. t-shaped inserted link.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 6, the present invention provides a technical solution:
example 1:
the utility model provides an assembly connector for computer mainframe, assembly connector includes mounting panel 1, backplate 2 and lower adjusting part.
The back plate 2 is fixed on the wall of the computer case, a pair of guide rails 8 which are symmetrical up and down are arranged on the back plate 2, an extrusion screw 24 is inserted into one side of the back plate 2, and the end part of the extrusion screw 24 is rotatably connected with a pressing plate 25.
Through the cooperation that sets up extrusion screw 24 and clamp plate 25, realize adjusting the lateral position of mounting panel 1, and then make host computer circuit board 3 peg graft with the computer case board.
The mounting panel 1 slides and is pegged graft on guide rail 8, is provided with a pair of spout 4 on the mounting panel 1, and the slip is pegged graft on spout 4 has a pair of grip block 5 of going up, and the lower extreme of spout 4 slides and is pegged graft and has lower grip block 6, goes up the grip block 5 and installs host computer circuit board 3 with centre gripping between the grip block 6 down.
The clamping installation of the host circuit board 3 is realized through the upper clamping block 5 and the lower clamping strip 6.
The lower adjusting assembly comprises an adjusting frame 15 and a screw tube 13, a first bevel gear 18 and a second bevel gear 20 which are vertically meshed and connected are arranged in the adjusting frame 15, a rotating handle 17 extending to the outer side of the adjusting frame 15 is inserted in the lateral direction of the first bevel gear 18, a screw rod 14 is vertically fixed and inserted in the second bevel gear 20, the upper end of the screw rod 14 penetrates through the adjusting frame 15 and is connected with the screw tube 13 in a threaded rotating mode, an inner cavity of the adjusting frame 15 is set to be an adjusting inner cavity 16, the lower end of the screw rod 14 is inserted in the adjusting inner cavity 16, the outer wall of the lower end of the screw rod 14 is rotatably connected with the inner wall of the adjusting inner cavity 16 through a bearing 19, the upper end of the screw tube 13 is fixed to the lower end face of the lower clamping strip 6, and an insert block 22 inserted in the sliding groove 4 is arranged on the lower clamping strip 6.
The rotating handle 17 drives the first bevel gear 18 and the second bevel gear 20 to rotate in a meshed mode, the screw rod 14 can be rotated forcefully, the solenoid 13 is driven to ascend and descend, the purpose of adjusting the height of the lower clamping strip 6 is achieved, the height of the host circuit board 3 is adjusted, the socket on the host circuit board 3 is opposite to the mounting hole of the computer case board, and therefore the purpose of conveniently and accurately mounting the host circuit board 3 is achieved.
Example 2:
in addition to embodiment 1, in order to realize the insertion mounting between the mounting plate 1 and the back plate 2, a pair of vertically welded and mounted extension plates 9 is provided at the rear side of the mounting plate 1, which are vertically symmetrical, and a T-shaped slot 21 is provided at the end of the extension plate 9, and the slot 21 is slidably inserted into the guide rail 8.
Through the cooperation of guide rail 8 and slot 21, realize the plug-in type slidable mounting of mounting panel 1.
Example 3:
on the basis of embodiment 1, in order to realize the clamping of the upper end of the host circuit board 3, the clamping device further comprises a clamping groove 7 which is provided with a U shape at the lower end of the upper clamping block 5, the front end inner wall of the clamping groove 7 is pressed on the front end surface of the host circuit board 3, the rear end inner wall of the clamping groove 7 is pressed on the rear end surface of the mounting plate 1, the upper end inner wall of the clamping groove 7 is pressed on the upper end of the host circuit board 3, a fixed end plate 27 is vertically and fixedly welded at the front end of the upper end surface of the upper clamping block 5, an adjusting groove 30 is arranged at the rear side of the upper end surface of the upper clamping block 5, a movable end plate 29 is vertically and slidably inserted and installed on the adjusting groove 30, the transverse width of the fixed end plate 27 and the movable end plate 29 is larger than the width of the sliding groove 4, and the fixed end plate 27 and the movable end plate 29 are fixedly connected through a connecting bolt 28.
The clamping installation of the upper end of the host circuit board 3 is realized by arranging the clamping groove 7, and the fixed end plate 27 and the movable end plate 29 are fixed on the front end surface and the rear end surface of the mounting plate 1 in an extruding way through the locking of the connecting bolt 28, so that the purpose of fixing the position of the upper clamping block 5 is achieved.
Example 4:
on the basis of embodiment 3, in order to further limit the gap width between the back plate 2 and the mounting plate 1, a T-shaped insertion rod 31 is arranged on the rear end face of the upper clamping block 5, a pressing block 10 is slidably inserted into the end of the T-shaped insertion rod 31, an end vertical plate of the T-shaped insertion rod 31 is inserted into an inner cavity of the pressing block 10, a limiting end plate is arranged at the port of the inner cavity of the pressing block 10, and a spring 12 is pressed between the limiting end plate and the vertical plate of the T-shaped insertion rod 31.
Through the extrusion connection between the T-shaped insertion rod 31 and the pressing block 10, the upper clamping block 5 is pressed on the end face of the back plate 2, and the front end of the mounting plate 1 is improved.
Example 5:
on the basis of embodiment 1, in order to realize the extrusion type propulsion adjustment of the pressing plate 25, a side plate 23 is vertically arranged on one side of the front end face of the back plate 2, a screw hole 26 is formed in the middle of the side plate 23 in a penetrating mode, the pressing screw 24 is screwed and inserted into the screw hole 26 in a rotating mode, the end portion of the pressing screw 24 is connected with one side bearing of the pressing plate 25 in a rotating mode, the pressing plate 25 is installed on the front end face of the back plate 2 in a sliding mode, the pressing plate 25 is pressed on the side wall of the installing plate 1, the spring 12 is sleeved on the cross rod of the T-shaped inserting rod 31 in a sleeved mode, the end portion of the spring 12 is pressed on the vertical plate of the T-shaped inserting rod 31 in a pressing mode, a pair of rollers 11 is arranged on the outer wall of the pressing block 10, and the rollers 11 are pressed on the front end face of the back plate 1 in a pressing mode.
Through the cooperation that sets up curb plate 23 and screw 26, realize extrusion screw 24's screw thread rotation installation, screw through extrusion screw 24 rotates and impels for the clamp plate 25 pressfitting realizes mounting panel 1's horizontal propulsion on mounting panel 1, and then makes host computer circuit board 3 on mounting panel 1 peg graft with the quick-witted case board mounting hole.
The use method of the assembly connecting piece for the computer mainframe comprises the following steps:
the clamping piece is installed, the upper clamping block 5 is inserted in the sliding groove 4 in a sliding mode, the lower clamping strip 6 is inserted at the lower end of the sliding groove 4 in a sliding mode, and the lower end of the lower clamping strip 6 is rotatably connected with the adjusting frame 5 through the screw rod 14;
the circuit board clamping, the host circuit board 3 is clamped and inserted between the upper clamping block 5 and the lower clamping strip 6, the height of the lower clamping strip 6 is adjusted through the rotation of the rotating handle 17, so that the purpose of adjusting the installation height of the host circuit board 3 is achieved, and the height of the upper clamping block 5 is fixed through the fastening bolt 28, so that the purpose of fixedly clamping the host circuit board 3 is achieved;
mounting the back plate, namely mounting the back plate 1 on a computer case plate through screws, realizing the plug-in mounting of the mounting plate 1 through the matching of the guide rail 8 and the slot 21, and adjusting the transverse mounting position of the mounting plate 1 through the extrusion of the extrusion screw rod 24 on the pressing plate 25 so that the plug connection position of the host circuit board 3 corresponds to the mounting hole of the computer case side plate
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides a computer is assembly connection spare for host computer which characterized in that: the assembly connector comprises:
the computer case comprises a back plate (2), wherein the back plate (2) is fixed on the wall of the computer case, a pair of guide rails (8) which are symmetrical up and down are arranged on the back plate (2), an extrusion screw (24) is inserted into one side of the back plate (2), and the end part of the extrusion screw (24) is rotatably connected with a pressing plate (25);
the mounting plate (1) is inserted on the guide rail (8) in a sliding manner, a pair of sliding grooves (4) are formed in the mounting plate (1), a pair of upper clamping blocks (5) are inserted on the sliding grooves (4) in a sliding manner, a lower clamping strip (6) is inserted at the lower end of the sliding grooves (4) in a sliding manner, and a host circuit board (3) is clamped and mounted between the upper clamping blocks (5) and the lower clamping strip (6);
the lower adjusting assembly comprises an adjusting frame (15) and a spiral tube (13), a first bevel gear (18) and a second bevel gear (20) which are connected in a vertical meshing mode are arranged in the adjusting frame (15), a rotating handle (17) extending to the outer side of the adjusting frame (15) is laterally inserted into the first bevel gear (18), a lead screw (14) is vertically and fixedly inserted into the second bevel gear (20), the upper end of the lead screw (14) penetrates through the adjusting frame (15) and is connected with the spiral tube (13) in a threaded rotating mode, the upper end of the spiral tube (13) is fixed to the lower end face of the lower clamping strip (6), and an inserting block (22) inserted into the sliding groove (4) is arranged on the lower clamping strip (6).
2. The assembly connector of claim 1, wherein: the rear side of the mounting plate (1) is provided with a pair of vertically welded and mounted extension plates (9) which are vertically symmetrical, the end parts of the extension plates (9) are provided with T-shaped slots (21), and the slots (21) are inserted on the guide rails (8) in a sliding manner.
3. The assembly connector of claim 1, wherein: the lower end of the upper clamping block (5) is provided with a U-shaped clamping groove (7), the inner wall of the front end of the clamping groove (7) is pressed on the front end face of the host circuit board (3), the inner wall of the rear end of the clamping groove (7) is pressed on the rear end face of the mounting plate (1), and the inner wall of the upper end of the clamping groove (7) is pressed on the upper end of the host circuit board (3).
4. The assembly connector of claim 3, wherein: go up the vertical fixed welding in up end front end of grip block (5) and have fixed end plate (27), the up end rear side of going up grip block (5) is provided with adjustment tank (30), vertical slip grafting is gone up in adjustment tank (30) and is installed movable end plate (29), the horizontal width of fixed end plate (27) and movable end plate (29) is greater than the width of spout (4), passes through connecting bolt (28) fixed connection between fixed end plate (27) and the movable end plate (29).
5. The assembly connector of claim 1, wherein: a side plate (23) is vertically arranged on one side of the front end face of the back plate (2), a screw hole (26) penetrates through the middle of the side plate (23), and the extrusion screw rod (24) is rotatably inserted into the screw hole (26) in a threaded mode.
6. The assembly connector of claim 5, wherein: the end part of the extrusion screw rod (24) is rotatably connected with a bearing at one side of the pressing plate (25), the pressing plate (25) is slidably arranged on the front end surface of the back plate (2), and the pressing plate (25) is pressed on the side wall of the mounting plate (1).
7. The assembly connector of claim 1, wherein: the clamping device is characterized in that a T-shaped insert rod (31) is arranged on the end face of the rear side of the upper clamping block (5), a pressing block (10) is inserted into the end portion of the T-shaped insert rod (31) in a sliding mode, a vertical plate of the end portion of the T-shaped insert rod (31) is inserted into an inner cavity of the pressing block (10), a limiting end plate is arranged at the port of the inner cavity of the pressing block (10), and a spring (12) is pressed between the limiting end plate and the vertical plate of the T-shaped insert rod (31).
8. The assembly connector of claim 7, wherein: the spring (12) is sleeved on a cross rod of the T-shaped insertion rod (31), the end portion of the spring (12) is pressed on a vertical plate of the T-shaped insertion rod (31), the outer wall of the pressing block (10) is provided with a pair of rollers (11), and the rollers (11) are pressed on the front end face of the back plate (1).
9. The assembly connector of claim 1, wherein: the inner cavity of the adjusting frame (15) is set to be an adjusting inner cavity (16), the lower end of the screw rod (14) is inserted into the adjusting inner cavity (16), and the outer wall of the lower end of the screw rod (14) is rotatably connected with the inner wall of the adjusting inner cavity (16) through a bearing (19).
10. A method of using an assembly connector for a computer host according to any one of claims 1 to 9, wherein: the use method comprises the following steps:
the clamping piece is installed, the upper clamping block (5) is inserted into the sliding groove (4) in a sliding mode, the lower clamping strip (6) is inserted into the lower end of the sliding groove (4) in a sliding mode, and the lower end of the lower clamping strip (6) is rotatably connected with the adjusting frame (5) through a screw rod (14);
the circuit board clamping is characterized in that a host circuit board (3) is clamped and inserted between an upper clamping block (5) and a lower clamping strip (6), the height of the lower clamping strip (6) is adjusted through rotation of a rotating handle (17), so that the purpose of adjusting the installation height of the host circuit board (3) is achieved, and the purpose of fixedly clamping the host circuit board (3) is achieved through fixing the height of the upper clamping block (5) through a fastening bolt (28);
the mounting of the back plate realizes the plug-in mounting of the mounting plate (1) by mounting the back plate (1) on the computer case plate through the matching of the guide rail (8) and the slot (21), and adjusts the transverse mounting position of the mounting plate (1) through the extrusion of the extrusion screw (24) on the pressing plate (25), so that the plug connection position of the host circuit board (3) corresponds to the mounting hole of the computer case side plate.
CN202210959783.0A 2022-08-11 2022-08-11 Assembling connecting piece for computer host and use method Pending CN115268591A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210959783.0A CN115268591A (en) 2022-08-11 2022-08-11 Assembling connecting piece for computer host and use method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210959783.0A CN115268591A (en) 2022-08-11 2022-08-11 Assembling connecting piece for computer host and use method

Publications (1)

Publication Number Publication Date
CN115268591A true CN115268591A (en) 2022-11-01

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ID=83750716

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Application Number Title Priority Date Filing Date
CN202210959783.0A Pending CN115268591A (en) 2022-08-11 2022-08-11 Assembling connecting piece for computer host and use method

Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117093064A (en) * 2023-10-20 2023-11-21 宿迁硕磊通信发展有限公司 Communication equipment case

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117093064A (en) * 2023-10-20 2023-11-21 宿迁硕磊通信发展有限公司 Communication equipment case
CN117093064B (en) * 2023-10-20 2024-01-09 宿迁硕磊通信发展有限公司 Communication equipment case

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Application publication date: 20221101

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