TWM467753U - Fixing device - Google Patents

Description

Fixtures

The present invention provides a fixing device, in particular, a shaft through which a fixing member is inserted in a through hole of a sleeve, and a ring protrusion is formed at a periphery of the perforation, and a shaft of the fixing member is adjacent to the joint portion. An annular blocking portion is formed on the outer ring portion to form a stop position to ensure the function of the head leveling after the fixing element rises and rebounds.

Pressing, the general panel (board-to-board) is assembled by using a positioning screw with a knob, a collar and a screw to fix the screw and the collar to the first panel, and to rotate The knob is used to lock the screw into the second panel to form a preset position, and then the hand tool is used to lock the screw, so that the first panel and the second panel are locked and fixed into one body, and can be used in a telecom cabinet, an industrial computer. The working machine and the like use a device composed of a plurality of devices and a mechanism to be used for board-to-board connection.

Furthermore, some manufacturers have developed such a floating screw composed of a cap, a screw and a positioning seat, and fastened the positioning seat of the floating screw to the perforation of the plate, and then locked the screw with another screw. The fixing member is formed on the plate, and when the user removes the plate, the floating screw can still be fixed in the perforation of the plate through the positioning seat without loss, and a fixing device is developed in the sleeve for assembly. a locking member, and one end of the elastic body sleeved by the sleeve abuts against the stopping collar on the outside of the sleeve, and the other end of the elastic body abuts against the bottom of the head of the locking member At the surface, the screw extending from the bottom surface of the cap of the locking member is inserted into the accommodating space inside the sleeve, so that the stopper of the sleeve in the accommodating space can block the screw of the locking member. In the above, the locking member does not come out and form an active docking state with the sleeve.

However, when the external thread of the screw of the locking member is formed, an angle is formed between the axis and the spiral line, so that the screw of the locking member abuts against the stopping body, a slight deflection angle is generated, so that the locking member is The axis cannot be maintained at the central axis position, and the suction head is attracted to the cap of the lock member for movement, and the welding is difficult to align with the perforation on the plate, or even the screw cannot be aligned with the lock hole of the other plate. The screw must be deflected at an angle to be locked, so that the keyhole is prone to misalignment or deformation, and the inconvenience and difficulty of the locking operation is increased. If the motor or the hand tool is used to drive the locking member to lock When the force is too large, it is more likely to cause the occurrence of chipping or breakage of the screw, and the overall structural stability is also poor. This is the direction that the people who are still in the industry want to study and improve.

Therefore, the new creators, in view of the problems and shortcomings of the conventional fixed devices, collected the relevant materials through multi-party evaluation and consideration, and used the years of research and development experience in this industry to continuously try and modify, and began to design a new type of such fixed devices.

The main purpose of the creation is that the sleeve has a positioning portion positioned at the hole of the plate body at the lower side of the perforation, and a ring-shaped convex portion is formed at the periphery of the perforation, and the fixing element is located a head portion above the sleeve and extending downwardly from the bottom surface of the head portion and a joint portion penetrating into the through hole, and the shaft body is formed with an annular blocking portion adjacent to the joint portion, and then The rod body is provided with an elastic member between the sleeve and the fixing member, and when the head of the fixing member is pushed by pressing on the ring convex portion of the sleeve to deform and reduce the diameter, The elastic member can be elastically supported on the head, and the annular blocking portion is interlocked against the annular convex portion to form a stop position, so as to ensure that the center of gravity of the fixed component rises and rebounds, the overall center of gravity remains stable, and the head is leveled. The function is more accurate for subsequent welding or locking operations.

The secondary purpose of the present invention is that the positioning portion of the sleeve is formed with an annular abutting body outwardly, and one end of the elastic member sleeved on the fixing element rod is abutting against the annular abutting body of the positioning portion, and The elastic end of the elastic member is elastically deformed and displaced against the bottom surface of the head of the fixing member. The elastic member is sleeved outside the sleeve and is not limited by position and space, and the elastic member can be elastically supported to fix. The elastic displacement stroke of the component can provide sufficient rebound force of the fixing component when the overall height of the sleeve is lowered, so that the elastic component is less prone to stress concentration or elastic fatigue, and permanent deformation or service life is shortened. Maintain proper elastic preload without excessive deformation or structural damage.

Another object of the present invention is that the joint portion under the shaft of the fixing member has an external thread, and the outer diameter of the shaft is larger than the joint diameter of the joint portion, and the electric motor tool or the hand tool (such as a screwdriver or a wrench) can be added. The torsion strength when the shaft is connected to the head to drive the shaft and the joint to lock, to avoid cracking or breaking due to excessive shear force of the shaft adjacent to the joint due to insufficient strength of the overall structural strength of the fixing element occur.

A further object of the present invention is that the outer sleeve is assembled on the head of the fixing member by means of assembly or burying, and the outer sleeve can be covered by the outer sleeve to prevent foreign matter from entering the outside of the elastic member to ensure normal operation. The utility model has the function of protection, and the elastic element is hidden inside the outer sleeve without being exposed and the overall appearance is more beautiful, and the surface of the outer sleeve can also have characters, patterns, figures, marks, symbols, etc. of a specific color, in order to facilitate Identify features such as locking or dismounting, or marking the location of the location.

1‧‧‧ sleeve

11‧‧‧Perforation

111‧‧‧Top surface

12‧‧‧ Positioning Department

121‧‧‧Ring-inhibiting body

1211‧‧‧ by face

122‧‧‧Positioning column

1221‧‧‧Round groove

13‧‧‧ ring convex

131‧‧‧ pushed top

132‧‧‧ stop surface

2‧‧‧Fixed components

21‧‧‧ head

211‧‧‧ bottom

212‧‧‧Operation Department

213‧‧‧ docking

22‧‧‧ shaft

23‧‧‧Intersection

231‧‧‧ external thread

24‧‧‧ annular barrier

241‧‧‧Resistance

25‧‧‧Flexible components

26‧‧‧Outer casing

260‧‧‧ accommodating space

261‧‧‧fixed slot

3‧‧‧ board

31‧‧‧ hole

32‧‧‧ solder

The first picture is a three-dimensional appearance of the creation.

The second picture is a three-dimensional exploded view of the creation.

The third figure is a three-dimensional exploded view of another perspective of the creation.

The fourth figure is a side cross-sectional view of the original assembly.

The fifth figure is a side cross-sectional view of the original assembly.

The sixth figure is a side cross-sectional view of the original assembly.

Figure 7 is a side cross-sectional view of the preferred embodiment of the present invention.

Figure 8 is a side cross-sectional view of another preferred embodiment of the present invention.

Figure 9 is a side cross-sectional view of still another preferred embodiment of the present invention.

In order to achieve the above objectives and effects, the technical means and its construction adopted in the present invention are described in detail in the preferred embodiment of the present invention, and the structure and function are as follows.

Please refer to the first, second, third, fourth, fifth and sixth figures, which are respectively the three-dimensional appearance drawing, the three-dimensional exploded view, the three-dimensional exploded view of another perspective, the side cross-sectional view before assembly, and the assembly time. A side cross-sectional view of the side view and a side cross-sectional view after assembly, as is clear from the figure, the present invention includes a sleeve 1 and a fixing member 2, wherein the hollow interior of the sleeve 1 has a longitudinal perforation 11 A positioning portion 12 is disposed below the through hole 11 , and the positioning portion 12 is formed with an annular abutting body 121 outwardly and a hollow positioning post 122 extending from the annular abutting body 121 with a small outer diameter, and the positioning column An annular groove 1221 is formed on the outer surface of the 122, and a flattened top surface 111 is formed outwardly at the outer periphery of the through hole 11 of the sleeve 1. The top surface 111 is formed with an oblique extension adjacent to the through hole 11. The ring-shaped convex portion 13 is formed, and the top surface 131 and the stopper surface 132 are respectively formed on the upper and lower surfaces of the ring convex portion 13.

The fixing member 2 has a head portion 21 located above the sleeve 1 and extends downwardly from the bottom surface 211 of the head portion 21 with a joint portion 23 penetrating into the through hole 11 and a joint portion 23 below the shaft 22, The outer diameter D of the shaft 22 is greater than the pitch diameter d of the joint portion 23 (as shown in the seventh, eighth, and ninth views), and the joint portion 23 of the fixing member 2 is preferably provided with the external thread 231, but in practice In application, a protruding block (not shown) may be formed at the outer surface of the joint portion 23 at the outer surface of the joint portion 23 and at the lower side of the side portion having no longitudinal plane position. 2 The function of the screw or the screw member can be transmitted through the external thread 231 or the stopper of the joint portion 23.

Furthermore, the shaft 22 of the fixing member 2 is formed outwardly adjacent to the joint portion 23 with an annular blocking portion 24 having an outer diameter larger than that of the shaft 22, and the annular blocking portion 24 is formed adjacent to the lateral surface of the shaft 22. The flat surface resisting surface 241, and the elastic member 25 is sleeved on the shaft 22, and the outer diameter of the elastic member 25 is smaller than the head portion 21 and slightly larger than the outer diameter of the annular blocking portion 24; The surface of the head 21 is provided with a cross portion, a hexagonal groove, a m-shaped groove, a hexagonal protrusion or other various types of acting portions 212, and a plurality of convex teeth and pressure are formed at the periphery of the head portion 21. Flower surface, positioning bumps or other mating surfaces 213 with a slip-resistant effect.

When the present invention is assembled, the elastic member 25 is first sleeved on the outside of the sleeve 1, and one end of the elastic member 25 is abutted on the sleeve 1 and the positioning portion 12 is formed outward. After the annular abutting body 121 is attached, the shaft 22 of the fixing member 2 is inserted into the through hole 11 of the sleeve 1 downwardly, and the other end of the elastic member 25 is elastically supported against the bottom surface 211 of the head portion 21. There is an elastic deformation displacement such that the elastic member 25 is located between the positioning portion 12 of the sleeve 1 and the head portion 21 of the fixing member 2, and the annular blocking portion 24 of the shaft 22 adjacent to the engaging portion 23 passes through the through hole 11 The oblique ring-shaped convex portion 13 formed at the upper peripheral edge is stamped onto the head portion 21 by a press mold (not shown), and the bottom surface 211 of the head portion 21 is pushed against the annular convex portion 13 The top surface 131 is deformed and the aperture is reduced, and the top surface 131 of the annular protrusion 13 forms a coplanar with the flat top surface 111 at the upper periphery of the through hole 11, and the shaft of the fixing member 2 A gap is formed between the 22 and the ring protrusion 13 of the sleeve 1 to avoid the occurrence of the locking of the fixing member 2 and the sleeve 1 due to the engagement of the ring protrusion 13 on the shaft 22. The element 25 is elastically supported on the bottom surface 211 of the head 21, and interlocks the annular blocking portion 24 against the stop surface 132 of the annular protrusion 13 Stop positioned to effectively prevent the fixing member 2 prolapse outer sleeve 1, the fixing member 2 and thus the sleeve 1 presents a rendezvous state.

Please refer to the seventh, eighth and ninth drawings, which are respectively a side cross-sectional view of a preferred embodiment, a side cross-sectional view of another preferred embodiment, and a side cross-sectional view of still another preferred embodiment. As can be clearly seen from the figure, the fixture of the present invention is applied to a telecom office cabinet, a computer server, a work machine or other equipment or device having a machine board set, a drawer, a keyboard stand, and the like. When the sleeve 1 and the plate body 3 are assembled, the positioning portion 12 of the sleeve 1 is first aligned with the hole 31 of the plate body 3, and then stamped and stamped by a stamping jig (not shown). On the head 21, after the elastic member 25 is pressed, it will be elastically deformed and displaced from the bottom surface 211 of the head 21 to the flat top surface at the upper periphery of the through hole 11 of the sleeve 1. 111, the positioning post 122 of the positioning portion 12 can be riveted down to the hole 31 of the plate body 3, and the positioning portion 12 of the sleeve 1 can also be used by the annular groove 1221 on the outer surface of the positioning post 122. It is tightly integrated into the hole 31 of the plate body 3 to be integrated.

The positioning portion 12 of the creating sleeve 1 and the hole 31 of the plate body 3 are integrally joined by riveting, which is only a preferred embodiment. The suction head of the suction device (not shown) can also be used to adsorb the fixing member. The surface of the head portion 21 of the sleeve 2 is taken up, and the positioning portion 12 of the sleeve 1 is inserted into the hole 31 of the plate body 3 with the positioning post 122, so as to be released through the suction head to the fixing member 2. After the head 21 and the annular abutting body 121 are abutted against the solder 32 brushed around the hole 31 toward the facing surface 1211 formed by the positioning post 122, the reflow soldering machine can be utilized (not shown in the drawing) The welding operation for subsequent heating of the solder 32 is integrally performed by welding the positioning portion 12 of the sleeve 1 to the hole 31 of the plate body 3 after the tin plating.

During the welding process of the sleeve 1, the elastic member 25 can be elastically supported against the bottom surface 211 of the head portion 21 of the fixing member 2, and the annular blocking portion 24 is interlocked to abut the ring projection 13 of the sleeve 1. The stop position is formed on the surface 132, and the thread 231 does not abut against the ring protrusion 13 due to the joint portion 23, and it can be ensured that the shaft 22 is not displaced or shaken at the center axis position after the fixing member 2 is raised and rebounded. The whole center of gravity is kept stable, and has the function of flattening the head 21, so as to facilitate the subsequent suction device to take the head 21 of the fixing member 2 for welding work, and to prevent the joint portion 23 of the fixing member 2 from being biased. When the oblique lock is inserted, the shape is changed and the lock cannot be smoothly performed, and even the thread 231 of the joint portion 23 is broken or broken, thereby improving the quality of the surface adhesion technology (SMT) welding or locking operation. Yield to achieve cost reduction.

When the present invention is used, the bottom surface of the plate body 3 is first placed against the other plate body (not shown), and the hole 31 of the plate body 3 is aligned with the keyhole of the other plate body. The elastic member 25 can be pressed down to the head 21 to be elastically deformed, and the elastic member 25 can be sleeved on the outside of the sleeve 1 without being restricted by position and space, thereby increasing the elastic support of the elastic member 25. Abutting against the elastic displacement stroke of the fixing member 2, and providing sufficient rebound force of the fixing member 2 when the overall height of the sleeve 1 is lowered, the elastic member 25 is less prone to stress concentration or elastic fatigue and is permanently deformed or used. The problem of shortened life can also maintain proper elastic preload without excessive deformation or structural damage.

During the pressing of the fixing element 2, the engaging portion 23 will pass through the through hole 11 of the sleeve 1, and the engaging portion 23 of the fixing member 2 is pre-locked to the locking hole of the other plate by the external thread 231. After the inner portion, the motor portion or the hand tool (such as a screwdriver or a wrench) is used to drive the engaging portion 212 that is butted against the head portion 21 to quickly lock the joint portion 23 below the shaft 22, thereby fixing the component 2 The bottom surface 211 of the head portion 21 abuts against the upper periphery of the through hole 11 of the sleeve 1 so that the sleeve 1 fits the plate body 3 against the other plate body, and the plate body 3 and the other plate body are fixed by locking. In combination, the plate body 3 and the other plate body can be quickly assembled or disassembled to form a locked or separated state, and the outer diameter D of the shaft 22 of the fixing member 2 is larger than the pitch diameter d of the joint portion 23, The strength of the torsion force when the head 21 drives the shaft 22 and the engaging portion 23 to be locked can be increased to avoid cracking or breaking due to excessive shearing force of the shaft 22 adjacent to the joint portion 23 due to insufficient structural strength of the fixing member 2. The situation occurs, which in turn achieves the effects of structural stability, robust assembly and accurate positioning.

However, the head 21 of the fixing member 2 is further provided with an outer sleeve 26, and an accommodation space 260 is formed inside the outer sleeve 26 and is located in the accommodating space. The top of the 260 is provided with a fixing groove 261, and the head 21 of the fixing member 2 can be integrally molded with the outer sleeve 26 by means of plastic, or the abutting surface 213 at the periphery of the head 21 and the outer sleeve 26 can be fixed. The slot 261 is combined and positioned by the assembly, that is, the outer sleeve 26 is covered on the outside of the sleeve 1 and the elastic member 25 to prevent foreign matter from entering, so as to ensure the function of the normal use and protect, and the elastic member 25 is hidden in the outer sleeve. 26 The interior is not exposed and the overall appearance is more beautiful, and the outer sleeve 26 may also have a specific color of characters, patterns, figures, marks, symbols, etc., in order to facilitate the identification of functions (such as locking or dismounting) or label positioning. The location and so on.

The above detailed description is intended to illustrate a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and other equivalents and modifications may be made without departing from the spirit of the invention. Changes are to be included in the scope of patents covered by this creation.

In summary, the above-mentioned fixed device can achieve its efficacy and purpose. Therefore, this creation is a practical and excellent creation, which is in line with the application requirements of the new patent, and the application is submitted according to law. This case is intended to protect the hard work of the new creators. If there is any doubt in the bureau, please do not hesitate to give instructions. The new creators will try their best to cooperate with them.

1‧‧‧ sleeve

11‧‧‧Perforation

111‧‧‧Top surface

12‧‧‧ Positioning Department

121‧‧‧Ring-inhibiting body

122‧‧‧Positioning column

1221‧‧‧Round groove

13‧‧‧ ring convex

131‧‧‧ pushed top

132‧‧‧ stop surface

2‧‧‧Fixed components

21‧‧‧ head

211‧‧‧ bottom

212‧‧‧Operation Department

213‧‧‧ docking

22‧‧‧ shaft

23‧‧‧Intersection

231‧‧‧ external thread

24‧‧‧ annular barrier

241‧‧‧Resistance

25‧‧‧Flexible components

Claims (10)

A fixing device includes a sleeve and a fixing component, wherein: the hollow interior of the sleeve has a perforation, and a positioning portion positioned at a hole of the predetermined plate body is disposed below the perforation, and the periphery of the perforation is provided Forming a ring-shaped annular protrusion; the fixing element is a head having a position above the sleeve and pushing on the ring protrusion to deform and narrowing the aperture, and extending downwardly at the bottom surface of the head a shaft formed in the perforation and a joint below the shaft, and the shaft of the fixing member adjacent to the joint portion is formed with an annular blocking portion that is formed to be outwardly formed to resist the positioning of the ring convex portion. The rod body is provided with an elastic member which is elastically deformed and displaced between the sleeve and the fixing member. The fixing device according to claim 1, wherein a peripheral surface of the through hole of the sleeve is formed with a flat top surface facing outward, and the upper and lower sides of the annular convex portion are respectively formed with fixing elements. The bottom surface of the head is pushed up and forms a coplanar ejector surface with the top holding surface and a stop surface for the annular blocking portion to abut against the stop. The fixing device according to claim 1, wherein the positioning portion of the sleeve is formed with an annular abutting body outwardly, and one end of the elastic member sleeved on the fixing element rod is a ring-shaped abutting against the positioning portion. The body is elastically deformed by the elastic end of the elastic member at the bottom of the head of the fixing member. The fixing device of claim 3, wherein the annular abutting body of the sleeve positioning portion extends a hollow positioning post having a smaller outer diameter, and an annular groove is disposed on the outer surface of the positioning post. groove. The fixing device of claim 3, wherein the annular abutting body of the sleeve positioning portion extends a hollow positioning post having a smaller outer diameter, and the annular abutting body faces the positioning post The lateral surface is formed with a mating surface. The fixing device according to claim 1, wherein the fixing portion has an external thread on the joint portion, and the outer diameter of the shaft is larger than the joint diameter of the joint portion. The fixing device according to claim 1, wherein the annular blocking portion of the fixing member is larger than the outer diameter of the shaft, and a ring abutting the sleeve is formed on the lateral surface of the annular blocking portion adjacent to the shaft. A resisting surface for stopping the positioning is formed on the convex portion. The fixing device according to claim 1, wherein the surface of the head of the fixing member is provided with a cross, a hexagonal groove, a m-shaped groove or a hexagonal protrusion, and is around the head. A mating surface of a plurality of convex teeth, embossed surfaces or positioning bumps is formed. The fixing device of claim 8, wherein the fixing member has an outer sleeve assembled by means of assembly, and a receiving space covering the sleeve and the outer portion of the elastic member is formed inside the outer sleeve. And a fixing groove is formed on the top of the accommodating space and combined with the abutting surface positioned on the head of the fixing component. The fixing device of claim 8, wherein the fixing member has an outer sleeve integrally formed by a burying method, and a cover is formed on the outer sleeve to cover the sleeve and the outer portion of the elastic member. Accommodate space.