TWI734403B - Fixtures - Google Patents

Abstract

The present invention relates to a fixing device, which includes a sleeve, a fixing member and an outer sleeve. The perforated bottom of the sleeve is provided with a positioning portion for positioning at the hole of the first plate body, and the outer edge of the perforated top is provided with a stopper. The holding part is further provided with the head of the fixing part above the sleeve, and the bottom surface of the head extends downwards with a shaft penetrating into the through hole, and under the shaft is extended for abutting with the second plate body The fixing part in the keyhole is combined with an outer sleeve on the head of the fixing member, and the outer sleeve is formed with a housing space covering the sleeve and the outer side of the fixing member, and the upper side of the inner side of the housing space is provided Pushing part, when the fixing part of the fixing part is abutted in the key hole of the second plate, the pushing part is the resisting part that pushes against the sleeve, so that the fixing part and the outer tube are laterally offset, and then The side of the resisting part is in contact with the side of the accommodating space of the outer sleeve to increase the friction between the sleeve and the outer sleeve, thereby achieving the effect of improving the stability during use.

Description

Fixtures

The present invention provides a fixing device, especially when the fixing member is butted on the second plate, the pushing portion of the outer sleeve is the resisting portion that pushes against the sleeve, so that the fixing member and the outer sleeve are laterally deviated , So that the side of the resisting part is in contact with the side surface of the accommodating space of the outer sleeve, so as to increase the friction between the sleeve and the outer sleeve, thereby improving the stability during use.

Press, when the current panel (board to board) is assembled, it is locked by positioning screws with knobs, collars and screws. The screws and collars can be fixed on the first panel and turned on The knob enables the screw to be locked into the second panel to form a preset positioning. After the screw is locked with a hand tool, the first panel and the second panel are locked and fixed as a whole, and can be used in telecommunication bureau cabinets and industrial computers. 、Working machine and other equipments composed of multiple devices and mechanisms are used for board-to-board connection.

Furthermore, some companies have developed such a floating screw consisting of a cap, a screw and a positioning seat. After the positioning seat of the floating screw is fastened in the perforation of the plate, the screw is used to lock it to another plate. When the user removes the board, the floating screw can still be fixed in the perforation of the board through the positioning seat without causing loss. Please refer to Figures 8 and 9, which are conventional three-dimensional exploded views and The side sectional view when in use, it can be clearly seen from the figure that the positioning seat A of the conventional fixing device has a central perforation A0 inside and a central perforation A0 The outer side of the bottom is provided with a joint portion A1, and the outer side of the central hole A0 of the joint portion A1 is protruded with a ring convex portion A2. The central hole A0 of the positioning seat A can be used for the rod body B1 of the positioning element B to pass through, and the rod The body B1 has a rod head B2 on one side, and the surface of the rod head B2 is provided with a cross-shaped actuating groove B21, and a spring B11 is sleeved on the rod body B1, so that the two sides of the spring B11 are respectively against the bottom of the head B2. The center of the positioning seat A is perforated at the shoulder in A0, and the head B2 on the other side of the rod body B1 extends outside the positioning seat A, that is, an outer sleeve C is combined with the outside of the head B2, and the outer sleeve C is covered Outside the annular convex portion A2 covering the top of the positioning seat A, the annular resisting portion C1 at the bottom of the accommodating space C0 can be stopped by the annular convex portion A2, thereby preventing the outer sleeve C from leaving the positioning seat A.

However, in the actual application of the conventional fixing device, because the positioning element B can be driven to rotate by the power tool or hand tool through the actuating groove B21 of the head B2, so that the positioning element B passes through the second fixed position of the positioning seat A. After the through hole D0 of a plate D, it can be locked into the screw hole E0 of the second plate E, thereby achieving the purpose of locking and combining the first plate D and the second plate E.

If the power tool or hand tool drives the positioning element B to rotate too strongly, the locking urgency between the positioning element B and the screw hole E0 of the second plate E will be too tight, making the positioning element B difficult to unscrew, so use The user will control the locking force to avoid over-tightening. However, today's electronic devices are becoming lighter, thinner, shorter and smaller, so that the thickness of the plate is getting thinner and thinner. If the locking force is not well controlled, Insufficient locking force will occur, resulting in that the first plate D and the second plate E cannot be firmly combined, and because the locking force is small, if the outer sleeve C is collided or impacted by an external force, it is prone to axial rotation. In this case, the positioning element B is separated from the screw hole E0 of the second plate E, and then the unlocking and loosening phenomenon occurs, resulting in various It is inconvenient to use more.

Therefore, how to try to solve the above-mentioned deficiencies and inconveniences of conventional use is the direction that relevant industries in this industry urgently want to study and improve.

Therefore, in view of the above-mentioned deficiencies, the inventor collected relevant information, and after multiple evaluations and considerations, he designed the invention patent holder of this kind of fixing device.

The main purpose of the present invention is that the hollow interior of the sleeve has a through hole, and the bottom of the hole is provided with a positioning part for positioning at the hole of the first plate body, and the outer edge of the top of the hole is provided with a resisting part , The head of the fixing part is arranged above the sleeve, and the bottom surface of the head extends downwards with a shaft penetrating into the through hole, and under the shaft is extended a second plate for docking The fixing part in the keyhole is combined with an outer sleeve on the head of the fixing member, and the outer sleeve is formed with a housing space covering the sleeve and the outer side of the fixing member, and the upper side of the inner side of the housing space is provided Pushing part, when the fixing part of the fixing piece is butted in the lock hole of the preset second plate body, the pushing part is the resisting part that pushes against the sleeve, and the fixing piece and the outer tube are laterally offset , And the side of the resisting part contacts the side of the accommodating space of the outer tube to increase the friction between the sleeve and the outer tube, thereby preventing insufficient locking force when the fixing member is in the locked state , So as to achieve the purpose of improving the stability during use.

The secondary purpose of the present invention is that the convex rib of the pushing portion is semi-cylindrical, so the contact surface of the convex rib on the ring body of the abutting portion is a circular arc surface, so that the convex rib is located on the side of the ring body When rotating on the side, it can smoothly rotate and slide, so as to achieve the purpose of not affecting the locking or unlocking action.

1: sleeve

11: Piercing

111: accommodating slot

12: Positioning department

121: Ring groove

13: Resistance Department

131: Ring

2: fixed parts

21: head

211: Butt Surface

212: Driver

2121: Actuation Department

22: Shaft

23: Fixed part

231: External thread

24: Elastic element

3: Outer tube

30: accommodating space

301: fixed slot

302: Ring Resistor

31: Push to the Ministry

311: Convex Rib

32: Trigger

321: anti-slip strip

4: The first board

41: Hole

5: The second board

51: keyhole

A: Positioning seat

A0: Center perforation

A1: Joint

A2: Ring convex part

B: Positioning components

B1: Rod body

B11: Spring

B2: Head

B21: Actuating groove

C: Outer sleeve

C0: accommodating space

C1: Annular resisting part

C2: Turning part

D: The first board

D0: Through hole

E: Second board

E0: screw hole

[Figure 1] is a perspective view of the present invention.

[Figure 2] is a three-dimensional exploded view of the present invention.

[Figure 3] is a three-dimensional exploded view of the present invention from another perspective.

[Figure 4] is a top cross-sectional view of the present invention before locking.

[Figure 5] is a cross-sectional side view of the present invention before locking.

[Figure 6] is a cross-sectional side view of the present invention after being locked.

[Figure 7] is a top sectional view of the present invention after being locked.

[Figure 8] This is a three-dimensional exploded view for conventional use.

[Figure 9] is a side sectional view of conventional use.

In order to achieve the above-mentioned purpose and effect, the technical means and structure adopted by the present invention are illustrated below in detail to illustrate the features and functions of the preferred embodiments of the present invention, so as to fully understand.

Please refer to Figures 1, 2 and 3, which are the three-dimensional appearance view, the three-dimensional exploded view and the three-dimensional exploded view of the present invention from another perspective. Piece 2 and outer tube 3, of which:

The hollow interior of the sleeve 1 has a longitudinal through hole 11, and a recessed accommodating groove 111 is provided above the through hole 11, and a positioning portion 12 is provided at the bottom of the through hole 11, and the positioning portion 12 is provided on the outer surface The annular groove 121 is formed on the outer edge of the top of the through hole 11 with a resisting portion 13, and the resisting portion 13 is located at the outer edge of the top of the through hole 11 and a ring body 131 is protrudingly provided.

The fixing member 2 has a head 21 located above the sleeve 1, and is attached to the head The periphery of the portion 21 is formed with a plurality of convex teeth, embossed surfaces, positioning convex points or other abutting surfaces 211 with positioning function, and the top surface of the head 21 is provided with a driving member 212, and the surface of the driving member 212 may be a cross A groove, a groove, an inner hexagonal groove, a Pozi-shaped groove, a hexagonal boss or other various types of actuating parts 2121, and then extend downwards at the bottom surface of the head 21 to penetrate into the perforation 11 The shaft 22 and the fixing part 23 with a smaller outer diameter under the shaft 22, and the surface of the fixing part 23 is provided with an external thread 231, and an elastic element 24 is sleeved on the shaft 22, and the elastic element 24 is located in the sleeve There is an elastic deformation displacement between 1 and the fixing member 2.

The outer sleeve 3 has an accommodating space 30 covering the outside of the sleeve 1 and the fixing member 2, and above the accommodating space 30 is recessed a fixing groove 301 for the abutting surface 211 of the head 21 to be combined and positioned. , And the lower opening of the accommodating space 30 is formed with an inwardly turning annular resisting body 302, and the upper inner side of the accommodating space 30 is provided with a pushing portion 31, and the pushing portion 31 has at least one semi-cylindrical shape The protruding rib 311 is provided with a flip portion 32 on the outer surface of the outer sleeve 3, and a plurality of anti-slip strips 321 are longitudinally sectioned on the side surface of the flip portion 32.

The head 21 of the above-mentioned fixing member 2 is preferably implemented to be integrally molded with the outer tube 3 by coating and injection using plastic. However, in practical applications, the head 21 of the fixing member 2 and the outer tube 3 can also be assembled in a manner The embedded card is fixed as a whole, so all simple modifications and equivalent structural changes made by using the description and drawings of the present invention should be included in the scope of the patent of the present invention for the same reason, and shall be stated.

However, the shape of the pull portion 32 of the outer sleeve 3 may preferably be a circle, but in practical applications, it may also be an ellipse, square, rectangle, parallelogram, or rhombus. Therefore, the description of the present invention is used everywhere. The simple modifications and equivalent structural changes made by the content of the drawings should be included in the scope of the patent of the present invention for the same reason, and shall be stated.

When the components of the present invention are assembled, the elastic element 24 can be sleeved on the shaft 22 of the fixing part 2 first, and the shaft 22 of the fixing part 2 can be inserted downward into the perforation 11 of the sleeve 1 , One end of the elastic element 24 will be held in the accommodating groove 111, and the other end of the elastic element 24 will be elastically supported at the bottom surface of the head 21, so that the elastic element 24 is located in the accommodating groove 111 of the through hole 11 and the fixing member There is an elastic deformation displacement between the heads 21 of 2, and then force is applied to sleeve the outer sleeve 3 downwards to the outside of the sleeve 1, and make the annular resisting body 302 at the lower opening of the outer sleeve 3 abut the sleeve 1. On the surface of the resisting portion 13, and after the annular resisting body 302 is elastically deformed and reset, it will pass under the ring body 131 of the resisting portion 13, and the sleeve 1 can be accommodated in the outer tube 3 In the accommodating space 30, at the same time, the elastic element 24 is elastically supported on the bottom surface of the head 21, and the annular resisting body 302 of the outer sleeve 3 is resisted to the bottom surface of the ring body 131 of the resisting portion 13 to form a stop position , In order to effectively prevent the fixing member 2 from falling out of the sleeve 1, thereby making the sleeve 1, the fixing member 2 and the outer sleeve 3 appear to be in a movable docking state.

The above-mentioned outer sleeve 3 is preferably implemented such that the annular resisting body 302 can be used to resist the resisting portion 13 of the sleeve 1 to form a stop position, so as to effectively prevent the fixing member 2 from falling out of the sleeve 1, but There are many ways to design the blocking structure between the outer sleeve 3 and the sleeve 1, and a C-shaped buckle, washer or other blocking element (not shown in the figure) can also be used to sleeve on the shaft 22 of the fixing member 2. , The bottom surface of the head 21 of the fixing element 2 can be elastically supported by the elastic element 24 to move upward, and the fixing portion 23 of the fixing element 2 will be held against the stop element to form a stop position, thereby making the sleeve 1. The fixed part 2 and the outer sleeve 3 are in a movable docking state, so all simple modifications and equivalent structural changes made by using the description and schematic content of the present invention should be included in the scope of the patent of the present invention for the same reason, and shall be combined. bright.

Please refer to Figures 4, 5, 6, and 7 for the combination, which is the lock of the present invention The front cross-sectional view, the side cross-sectional view before locking, the side cross-sectional view after locking, and the top cross-sectional view after locking. Office cabinets, computer servers, work machines, or other equipment or devices composed of machine board sets, drawers, keyboard racks, etc. are only a preferred implementation state. The first board 4 and the second board can also be used. The body 5 is used as a panel and a frame to form a server chassis. Inside the server chassis, it houses a motherboard, a power supply, access devices (such as hard disks or optical drives, etc.), interface cards or other electronics. equipment.

When the sleeve 1 and the first plate body 4 are assembled, the suction head of the suction device (not shown in the middle) can be used to suck on the head 21 of the fixing member 2 for subsequent riveting or welding. The overall center of gravity can be kept stable during the operation, thereby making the alignment and assembly more accurate, and it is not easy to shift or shake due to the elastic element 24 elastically supporting the head 21 of the fixing member 2 and being affected by external force vibration Occurs, so that after assembly, the positioning can be confirmed, the quality and yield of manufacturing can be improved, and the effect of reducing production costs can be achieved.

In the suction process of the suction device, the suction head can be used to suck on the head 21 of the fixing member 2 to take it up, and the positioning portion 12 of the sleeve 1 is aligned with the periphery of the hole 41 of the first plate 4 together. The head 21 of the fixing member 2 can be released through the suction head, or the head 21 of the fixing member 2 can be released through the suction head, and then punched on the surface of the head 21 in a punching manner using a punching jig (not shown in the figure). After the elastic element 24 is squeezed, it will exhibit an elastic deformation and displacement, and will be pushed against the top of the sleeve 1 from the bottom surface of the head 21 of the fixing member 2, and then the annular groove 121 of the positioning part 12 can be tightened. The hole 41 of the first board 4 is combined into one body. A reflow machine (not shown in the figure) can also be used to perform subsequent soldering operations on the solder brushed around the hole 41, or to coat after tinning The positioning portion 12 of the cylinder 1 is firmly welded to the hole of the first plate 4 Holes 41 are combined into one body.

However, the positioning portion 12 of the sleeve 1 and the hole 41 of the first plate 4 are preferably implemented to be integrated by riveting or welding. However, in practical applications, the positioning portion 12 of the sleeve 1 and the hole 41 The hole 41 of the first plate 4 is provided with internal threads and external threads that are screwed together, so that the positioning portion 12 of the sleeve 1 can be screwed on with internal threads or external threads (not shown in the figure). The holes 41 of the first plate body 4 are integrated with external threads or internal threads (not shown in the figure) by screwing and fixing. For example, the simple modification and equivalent structural changes made by using the description and drawings of the present invention are used. All should be included in the scope of the patent of the present invention for the same reason, and should be stated.

When the present invention is to be locked in the locking hole 51 of the second plate 5, the first plate 4 (e.g., panel) can be first covered on the upper side of the second plate 5 (e.g., frame). , So that the hole 41 of the first plate 4 is aligned with the key hole 51 of the second plate 5, and tools such as electric tools (such as electric screwdrivers, etc.) or hand tools (such as screwdrivers or wrenches) are used To butt against the actuating portion 2121 of the driving member 212, and push the head 21 of the fixing member 2 downward, so that the elastic element 24 is elastically compressed and deformed, and the fixing portion 23 of the fixing member 2 penetrates the sleeve The perforation 11 of 1 is outside and is located in the key hole 51 of the second plate 5, and then an electric tool or hand tool is used to drive the head 21 to quickly lock (such as clockwise), so that the fixing part 23 is externally threaded The 231 is locked into the locking hole 51 of the second plate body 5, thereby achieving the effect of tightening and locking, so that the first plate body 4 and the second plate body 5 are combined into one body by means of locking and fixing.

However, when the head 21 of the fixing member 2 is moved downward, the outer sleeve 3 will move downward. At this time, the outer sleeve 3 will pass through the rib 3 of the pushing portion 31. 11 to push against the side of the ring body 131 of the upper resisting portion 13 of the sleeve 1, so that the fixing member 2 and the outer sleeve 3 are laterally offset, and the accommodating space 30 of the outer sleeve 3 is in contact with the side At the side of the ring body 131 of the abutting portion 13 to increase the friction between the sleeve 1 and the outer tube 3, the fixing member 2 can be locked in a locked state to increase the strength of the locking, thereby preventing the occurrence of damage. The locking force is insufficient, and the assembly and combination of the first plate body 4 and the second plate body 5 are not reliable.

Furthermore, the accommodating space 30 of the outer sleeve 3 is in the shape of a circular hole, and when there are two or more protruding ribs 311 of the pushing portion 31, the plurality of protruding ribs 311 cannot be formed on the center of the accommodating space 30 It is arranged on the opposite side to avoid the situation that the fixing member 2 and the outer sleeve 3 will not shift laterally due to the forces of the plurality of ribs 311 canceling each other, and the plurality of ribs 311 are preferably arranged at the same side semicircular wall surface, It is possible to effectively cause the fixing member 2 and the outer sleeve 3 to shift laterally by arranging a plurality of ribs 311 on the same side semicircular wall surface.

Moreover, the head 21 of the above-mentioned fixing member 2 can preferably be used to lock the fixing portion 23 of the fixing member 2 into the locking hole 51 of the second plate 5 through tools such as electric tools or hand tools, but in actual application, The user can also use fingers to hold on the surface of the flip portion 32 of the outer sleeve 3 to move the outer sleeve 3 downwards, and then the fixed portion 23 of the linkage fixing member 2 to pass through the perforation 11 of the sleeve 1 , And then rotate the outer sleeve 3 to lock the fixing portion 23 of the fixing member 2 into the lock hole 51 of the second plate 5.

When the present invention intends to release the first plate 4 on the second plate 5, it only needs to be held on the flip portion 32 of the outer tube 3 with bare hands, and the outer tube 3 is turned and rotated in the reverse direction. The head 21 of the linkage fixing member 2 can rotate accordingly, and the fixing portion 23 of the fixing member 2 can be rotated out of the lock hole 51 of the second plate body 5. When the fixing portion 23 of the fixing member 2 is withdrawn from the second plate body 5. When the lock hole 51 of the plate body 5 is located, the elastic element 24 of the fixing member 2 generates an elastic restoring force , To push on the bottom surface of the head 21 of the fixing member 2, and then the outer sleeve 3 moves back, and the outer sleeve 3 will cooperate with the sleeve 1 to move the first plate 4 together at the second plate 5 The withdrawal action allows the user to quickly separate the first plate body 4 and the second plate body 5 by manual torsion rotation, and has the effect of simple operation and more labor-saving separation of the plate to the plate.

In addition, the above unlocking operation can also be connected to the actuating portion 2121 of the driving member 212 through an electric tool (such as an electric screwdriver, etc.) or a hand tool (such as a screwdriver or a wrench, etc.) to drive the head 21 of the fixing member 2 Fast reverse rotation (for example, counterclockwise rotation), the fixing part 23 of the fixing member 2 can be rotated out of the lock hole 51 of the second plate body 5, and the first plate body 4 can be separated from the second plate body 5. Action on board 5.

The present invention has the following advantages:

(1) When the fixing member 2 is displaced downwards, the pushing portion 31 of the outer sleeve 3 will push against the side of the resisting portion 13 of the sleeve 1, so that the fixing member 2 and the outer sleeve 3 will deviate laterally. This phenomenon causes the side surface of the accommodating space 30 of the outer sleeve 3 to contact the side of the resisting portion 13 of the sleeve 1, so as to increase the friction between the sleeve 1 and the outer sleeve 3, thereby making the fixing member 2 lock In the solid state, insufficient locking force is not easy to occur, and it is not easy to unlock the fixing member 2 on the second plate 5 due to collisions, impacts, etc., so as to achieve the effect of improving the stability of use.

(2) The protruding rib 311 of the pushing portion 31 is semi-cylindrical, so the contact surface of the protruding rib 311 on the ring body 131 of the resisting portion 13 is a circular arc surface, so that the protruding rib 311 is located on the ring body When the side of the 131 is rotated, it can rotate and slide smoothly without affecting the locking or unlocking action.

The above are only the preferred embodiments of the present invention, which does not limit the scope of the patent of the present invention. Therefore, all simple modifications and etc. made by using the description and drawings of the present invention are given. All changes in the effective structure should be included in the scope of the patent of the present invention for the same reason, and shall be stated.

In summary, the fixing device of the present invention can indeed achieve its effect and purpose when used. Therefore, the present invention is an invention with excellent practicality. This case will be granted as soon as possible to protect the inventor’s hard work. If there are any doubts from the Junju Bureau’s review committee, please write to us and give instructions.

1: sleeve

11: Piercing

111: accommodating slot

12: Positioning department

121: Ring groove

13: Resistance Department

131: Ring

2: fixed parts

21: head

211: Butt Surface

212: Driver

2121: Actuation Department

22: Shaft

23: Fixed part

231: External thread

24: Elastic element

3: Outer tube

30: accommodating space

301: fixed slot

32: Trigger

321: anti-slip strip

Claims (10)

A fixing device includes a sleeve, a fixing piece and an outer tube, in which: The hollow interior of the sleeve is provided with a through hole, and a positioning part for positioning at the hole of the preset first plate is provided at the bottom of the hole, and a resisting part is provided on the outer edge of the top of the hole; The fixing member has a head located above the sleeve, and extends downwards at the bottom surface of the head with a shaft penetrating into the through hole, and extends below the shaft to be connected to a predetermined second plate. The fixed part in the keyhole; The outer sleeve is combined with the head of the fixing member, and an accommodating space covering the sleeve and the outer side of the fixing member is formed inside the outer sleeve. When the fixing part of the element is abutted in the lock hole of the preset second plate, the pushing part is the resisting part that pushes against the sleeve, and the fixing part and the outer sleeve are laterally offset, and the resisting part The side is in contact with the side of the accommodating space of the outer sleeve. For the fixing device described in item 1 of the scope of patent application, the upper part of the perforation of the sleeve is provided with a recessed accommodating groove, and the shaft of the fixing member is sleeved with an elastic support against the accommodating groove and the head The elastic element at the bottom of the section. As for the fixing device described in item 1 of the scope of patent application, the outer surface of the positioning portion of the sleeve is provided with an annular groove for riveting on the inner wall of the hole of the preset first plate. The fixing device described in item 1 of the scope of patent application, wherein the abutting portion of the sleeve is located at the outer edge of the top of the perforation and is provided with a ring body protruding, and the pushing portion of the outer sleeve has at least one for pushing against the ring body At the side, the other side of the ring body is in contact with the convex rib at the side of the accommodating space. In the fixing device described in item 4 of the scope of patent application, the convex rib is semi-cylindrical. In the fixing device described in item 1 of the scope of patent application, a butting surface is formed at the periphery of the head of the fixing member, and a fixing groove for positioning with the butting surface is recessed above the accommodating space of the outer sleeve. The fixing device described in item 1 of the scope of patent application, wherein the top surface of the head of the fixing member is provided with a driving member for driving to drive the fixing member to rotate, and an actuating part on the surface of the driving member, and the actuating part is a cross recess Slots, slotted grooves, hexagonal inner grooves, podium-shaped grooves or hexagonal bosses. As for the fixing device described in item 1 of the scope of patent application, the surface of the fixing part of the fixing member is provided with an external thread. As for the fixing device described in item 1 of the scope of patent application, the lower opening of the accommodating space of the outer sleeve is formed with a ring-shaped resisting body that turns inward and is movably resisted at the bottom surface of the pushing portion. For the fixing device described in item 1 of the scope of patent application, the outer surface of the outer tube is provided with a flip part, and a plurality of anti-slip strips are longitudinally sectioned on the side of the flip part.

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