TWM536292U - Fastening device - Google Patents

Description

Fixtures

The invention provides a fixing device, in particular, an outer sleeve is arranged on the head of the fixing component which is disposed inside the sleeve, and at least one set of opposite fastening surfaces is arranged outside the holding block of the head to form the outer jacket. The pulling portion of the tube has a plurality of pulling surfaces which are aligned with the plurality of engaging surfaces to have a large holding area for freehand operation, so as to facilitate the locking or unlocking.

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 plate is fixed, 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, please refer to the side view of the conventional fixing device as shown in the figure IX. The figure is clearly seen in the figure, wherein the sleeve A is internally assembled with a locking member B, and an elastic body A1 is sleeved outside the sleeve A, and the elastic body A1 One end is abutting against the stop collar A2 of the sleeve A, and the other end of the elastic body A1 is abutted against the inner side of the cap B1 of the lock member B, so that the screw B2 extending at the side of the cap B1 can be Inserted into the accommodating space A0 inside the sleeve A, and the stopper body A3 disposed at the inner side of the accommodating space A0 is blocked between the screw B2 of the lock member B and the sleeve A, and The screw B2 of the lock member B passes through the outside of the accommodating space A0 of the sleeve A, and a nut C is locked to the screw B2, so that the welded portion formed by the sleeve A at the bottom of the stop collar A2 can be transmitted. The A4 is welded on the plate D and is coupled to the other mating plate by the locking member B to be integrated.

However, since the thickness of the cap B1 of the lock member B is relatively small, the area of the peripheral force applying surface is relatively narrow, which is disadvantageous for the user to hold the force applying surface to rotate the cap B1 by hand, which is quite easy to occur. Sliding hand and falling off, so when the lock B is locked to the board, the metropolis is used with the hand tool or the power tool. However, because the hand tool or the power tool is easily restricted by the operation space and the use place, Causes the user to spend more time and manpower on the disassembly and assembly work, which is not conducive to the process of rapid disassembly and assembly, and if the appropriate hand tools or power tools are not prepared at the assembly site, or the user does not carry the appropriate hand tools Or power tools, will affect the delay in the assembly and disassembly of the sheet metal, resulting in the inconvenience of related operations, but also the required labor and cost, for today's work efficiency and operating speed In the competitive market, the consideration of operating time and convenience is a topic that must be taken seriously by relevant practitioners.

Therefore, how to solve the above problems and shortcomings in the past is the direction for the relevant manufacturers engaged in this industry to research and improve.

Therefore, the creators have collected relevant information in view of the above problems and shortcomings. Through multi-party evaluation and consideration, and through years of experience in the industry, through the continuous trial and modification, the new birth of such fixtures was designed.

The main purpose of the present invention is that the inside of the sleeve is a perforation having a longitudinal direction, and a positioning portion is provided below the perforation, and a head having a fixing member is disposed above the sleeve, and the periphery of the head is outward. A retaining block is convexly disposed, and at least one set of opposite engaging surfaces is disposed outside the retaining block, and a fixed portion of the shaft and the lower portion of the shaft penetrated into the through hole is extended on the bottom surface of the head, and the head is fixed on the head The outer sleeve can be formed by injection molding, and a fixing groove for the positioning of the holding block is concavely disposed above the working space formed inside the outer sleeve, and the pulling portion of the outer surface of the outer sleeve is aligned with the plurality of clamping portions. The surface direction is formed by at least one set of two opposite pulling surfaces, and the pulling surface can provide a larger holding area for the user to conveniently hold and operate, thereby allowing the user to easily and easily The first plate body is assembled or detached from the second plate body, and the hand tool or the power tool can be used without being used, so that the operation and application are less likely to be restricted by space and tools.

The secondary purpose of the creation is that the holding block of the head is embedded in the fixing groove above the working space of the outer sleeve. When the user holds the rotating part and rotates it, the outer part of the holding block can be The plurality of card fixing surfaces are used for abutting against the plurality of blocking surfaces of the inner wall surface of the fixing groove to provide a supporting surface for the outer sleeve to be easily rotated, thereby achieving the purpose of improving the overall operability and disassembly speed.

Another object of the present invention is that the bottom surface of the head of the fixing component is convexly provided with a resisting block, and at least one set of opposite side cutting planes are respectively arranged in parallel or perpendicular to the outer side of the blocking block. When the outer sleeve is formed by injection molding, the structural design of the plurality of side cut surfaces can be utilized to facilitate the plastic feeding, so as to facilitate the formation of the outer sleeve.

1‧‧‧ sleeve

11‧‧‧Perforation

111‧‧‧Top surface

12‧‧‧ Positioning Department

13‧‧‧ annular barrier

131‧‧‧ pushed top

132‧‧‧ stop surface

14‧‧‧ ring convex

141‧‧ ‧ blocking surface

142‧‧‧ ring groove

143‧‧‧stop washer

2‧‧‧Fixed components

21‧‧‧ head

211‧‧‧ holding block

2111‧‧‧卡固面

212‧‧‧Operation Department

2121‧‧‧ longitudinal section

213‧‧‧Resistance block

2131‧‧‧ side cut

22‧‧‧ shaft

23‧‧‧ Fixed Department

231‧‧‧ external thread

232‧‧‧ by face

24‧‧‧ Elastomers

3‧‧‧Outer casing

30‧‧‧Working space

301‧‧‧fixed slot

3011‧‧‧stop surface

31‧‧‧Turning Department

311‧‧‧ Pulling surface

32‧‧‧Ring-inhibiting body

4‧‧‧ first board

41‧‧‧ hole

5‧‧‧Second plate

51‧‧‧Keyhole

A‧‧‧ sleeve

A0‧‧‧ accommodating space

A1‧‧‧ Elastomer

A2‧‧‧stop collar

A3‧‧‧ stop body

A4‧‧‧welding section

B‧‧‧Locks

B1‧‧‧ hat head

B2‧‧‧ screw

C‧‧‧ nuts

D‧‧‧ plates

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 creation.

The fifth figure is a side cross-sectional view of the creation before the creation of the lock.

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

The seventh drawing is a perspective view of another embodiment of the present creation.

The eighth figure is a side cross-sectional view of another embodiment of the present invention after being locked.

Figure 9 is a side cross-sectional view of a conventional fixture.

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

Please refer to the first, second, third and fourth figures, which are the three-dimensional external view, the three-dimensional exploded view, the three-dimensional exploded view of the other perspective and the side cross-sectional view. The figure can clearly see that this The creation system includes a sleeve 1, a fixing member 2 and an outer sleeve 3, wherein: the sleeve 1 has a through hole 11 extending longitudinally therein, and a flat top surface 111 is formed outwardly at a periphery of the perforation 11 A positioning portion 12 is disposed under the through hole 11, and the sleeve 1 is provided with an annular blocking portion 13 extending obliquely toward the inside of the through hole 11 with respect to the other side of the positioning portion 12, and the upper and lower surfaces of the annular blocking portion 13 are respectively formed with a pushing portion. Top surface 13 1 and a stop surface 132; further, the sleeve 1 is provided with a ring protrusion 14 at a distance from the upper portion of the positioning portion 12, and a flat blocking surface 141 is formed on the top surface of the ring protrusion 14 The ring protrusion 14 is recessed with a ring groove 142 below the blocking surface 141.

The fixing member 2 has a head portion 21 located above the sleeve 1 and has a holding block 211 protruding outwardly at a periphery of the head portion 21, and at least one set of two opposite fixing faces 2111 is disposed outside the holding block 211. Further, the top surface of the head 21 is provided with a movable portion 212 which can be a cross, a hexagonal groove, a m-shaped groove or other various types, and the inside of the actuating portion 212 is aligned with the direction of the plurality of fastening faces 2111. At least one set of two opposite longitudinal planes 2121, and a bottom surface of the head portion 21 is convexly provided with a resisting block 213, and the outer side of the resisting block 213 is parallel or perpendicular to the direction of the plurality of fastening surfaces 2111, and at least one set of opposite sides is disposed. The cutting surface 2131 further extends on the bottom surface of the resisting block 213 with a shaft portion 22 penetrating into the through hole 11 and a fixing portion 23 having a large outer diameter below the shaft 22. The fixing portion 23 is provided with an external thread 231 and fixed. The top surface of the portion 23 is adjacent to the shaft 22 and has a matching surface 232. The shaft 22 and the fixing portion 23 are sleeved with an elastic body 24, and the outer diameter of the elastic body 24 is smaller than the outer portion of the head portion 21. The diameter is slightly larger than the outer diameter of the sleeve 1.

The inside of the outer sleeve 3 is formed with an operating space 30 covering the outer portion of the sleeve 1 and the fixing member 2, and a fixing groove 301 for positioning and holding the holding block 211 of the head 21 is recessed above the operating space 30. The inner wall surface of the fixing groove 301 is provided with a blocking surface 3011 for the plurality of fastening surfaces 2111 to abut, and the outer surface of the outer sleeve 3 is provided with a pulling portion 31, and the pulling portion 31 is aligned with the direction of the plurality of fastening surfaces 2111. At least one set of two opposing pulling faces 311 are cut away.

When assembling the above-mentioned components, the elastic body 24 is first sleeved on the sleeve 1 Externally, so that one end of the elastic body 24 abuts against the blocking surface 141 of the ring convex portion 14, and then the shaft 22 of the fixing member 2 is penetrated downward into the through hole 11 of the sleeve 1, and the other end of the elastic body 24 The elastic body 24 is elastically deformed at the bottom surface of the holding block 211 of the head portion 21 so that the elastic body 24 is located between the ring convex portion 14 of the sleeve 1 and the head portion 21 of the fixing member 2, and is to be fixed on the portion 23. The abutting surface 232 passes through the annular blocking portion 13 which is inclined at the upper periphery of the perforation 11 and can be stamped onto the head 21 by a pressing mold (not shown), that is, by the holding block. The bottom surface of the 211 is pushed on the top surface 131 of the annular blocking portion 13 to deform it to reduce the aperture, and the top surface 131 of the annular blocking portion 13 and the flat top surface 111 at the upper periphery of the through hole 11 are formed. A total plane is formed, and a gap is formed between the shaft 22 of the fixing member 2 and the annular blocking portion 13 of the sleeve 1, so that the fixing member 2 and the sleeve 1 caused by the annular blocking portion 13 being engaged with the shaft 22 can be avoided. The formation of the clamping between the two can be elastically supported by the elastic body 24 at the bottom surface of the holding block 211, and interlocked The abutting surface 232 of the fixed portion 23 is formed at the inner side of the stop surface 132 of the annular blocking portion 13 to form a stop position to effectively prevent the fixing member 2 from coming out of the sleeve 1 and thereby fixing the sleeve 1. The element 2 and the outer sleeve 3 assume an active docking state.

Furthermore, the sleeve 1 and the fixing member 2 are integrally formed of a metal material, and the head portion 21 of the fixing member 2 is preferably integrally molded with the outer sleeve 3 by means of plastic. At least one pair of opposite fastening surfaces 2111 on the holding block 211 forms a aligned state with at least one pair of oppositely facing surface 311 of the triggering portion 31, but in practical application, the holding block 211 of the head 21 is The fixing groove 301 of the outer sleeve 3 can also be integrated by means of assembly and positioning. However, the fixing means 2 and the outer sleeve 3 are assembled in many ways, and the simple modification and equivalent structural change of the present specification and the drawings are used. It should be included in the scope of the patent of this creation and be combined with Chen Ming.

However, the fixing member 2 is preferably configured to pass through the abutting surface 232 of the fixing portion 23 to abut against the stopping surface 132 at the inner side of the annular blocking portion 13 of the sleeve 1 to form a stop position, thereby effectively preventing The fixing element 2 is out of the sleeve 1 , but the blocking structure between the sleeve 1 and the outer sleeve 3 is designed in many ways, and a C-shaped buckle, washer or other stop element can also be used (not shown) After being sleeved on the shaft 22 of the fixing member 2, the elastic portion 24 is elastically supported to be displaced upward at the bottom surface of the holding block 211 of the head portion 21 of the fixing member 2, and the fixing portion 23 is resisted. Forming a stop position on the stop element, so that the sleeve 1, the fixed element 2 and the outer sleeve 3 are in an active docking state, and all the simple modifications and equivalent structural changes made by using the present specification and the drawings should be the same. It is included in the scope of this creation patent and is given to Chen Ming.

Please refer to the fourth, fifth and sixth figures for the side view of the creation, the side sectional view before locking and the side sectional view after locking. It can be clearly seen from the figure. The fixed device for creation is a device or device that can be applied to a telecom office cabinet, a computer server, a work machine or other machine board group, a drawer, a keyboard frame, etc., and is only a preferred implementation state, and may also be The first board body 4 and the second board body 5 respectively serve as a panel and a frame, thereby forming a server chassis, and a host board, a power supply, and an access device (such as a hard disk and a disc) are housed inside the server case. Machines, etc.), interface cards or other electronic devices.

When the sleeve 1 and the first plate 4 are assembled, the suction head of the suction device (not shown) is firstly adsorbed on the head 21 for the overall center of gravity during subsequent riveting or welding operations. It can be kept stable, which makes the alignment assembly more precise, and is not easy to be biased by the elastic force of the elastic body 24 on the head 21 of the fixing member 2 by the external force shock. The situation of shifting or shaking occurs, so that the assembly can achieve the effect of positioning, improving the quality and yield of manufacturing, and reducing the production cost.

During the adsorption process of the suction device, the suction head can be attached to the head 21 of the fixing component 2 for picking up, and the positioning portion 12 of the sleeve 1 is aligned with the periphery of the hole 41 of the first plate body 4. Or the downwardly penetrating into the hole 41, the head 21 of the fixing member 2 can be released through the suction head, and then stamped onto the head 21 by means of a punching jig (not shown). After the elastic body 24 is squeezed, it will be elastically deformed and displaced from the bottom surface of the holding block 211 of the head 21 to the top of the sleeve 1, so that the positioning portion 12 can be tightened to the first plate body 4. The hole 41 is integrated into one, and a soldering machine (not shown) may be used to perform subsequent welding work on the solder brushed around the hole 41, or the positioning portion 12 of the sleeve 1 may be stabilized after tin plating. The welding is integrated into the hole 41 of the first plate body 4 to be integrated.

However, the positioning portion 12 of the sleeve 1 and the hole 41 of the first plate body 4 are preferably integrally formed by riveting or welding, but in actual application, the positioning portion 12 of the sleeve 1 can also be used. The inner surface of the sleeve 1 is provided with internal and external threads which are screwed to each other, so that the positioning portion 12 of the sleeve 1 can be screwed to the first plate 4 by internal or external threads (not shown). The external thread or the internal thread (not shown) of the hole 41 is integrated by means of screwing and fixing, and the simple modification and equivalent structural change which are used in the present specification and the drawings should be included in the same reason. Within the scope of this patent, it is given to Chen Ming.

In actual use, the first plate body 4 (such as a panel) is firstly closed over the second plate body 5 (such as a frame) so that the hole 41 of the first plate body 4 is aligned with the first The keyhole 51 of the second plate 5 can be pressed against the head 21 of the fixing member 2 to squeeze the elasticity The body 24 is in an elastic deformation displacement, and the fixing portion 23 is inserted through the through hole 11 of the sleeve 1, and the pulling surface 311 of the surface pulling portion 31 of the outer sleeve 3 can be reused, with a freehand or hand tool (such as An open-end wrench, an open-end wrench or a socket wrench, etc., is fitted with a hand-operated hand tool to drive the outer sleeve 3 to rotate the fixing member 2, or through a power tool (such as an electric screwdriver) or a hand tool (such as a screw) a driver or a wrench or the like is attached to the actuating portion 213 of the head portion 21 to drive the fixing member 2 to quickly lock, so that the external thread 231 of the fixing portion 23 is locked into the locking hole 51 of the second plate body 5, thereby achieving tightness. The function of the solid locking connection is to make the first plate body 4 and the second plate body 5 integrated by means of locking and fixing, and the second plate body can be prevented when the fixing portion 23 of the fixing component 2 is locked and locked. The keyhole 51 of the 5 is damaged or broken due to structural damage, and the locking is not smoothly performed even if the operation is inadvertently caused by the fixing portion 23 to be broken or broken, thereby achieving the effects of stable structure, firm assembly and accurate positioning.

When the present invention is to be released to the first plate 4, it is only necessary to pull the trigger portion 31 of the outer sleeve 3 again, so as to interlock the head 21 of the fixing member 2 to rotate at the same time, that is, the fixing member 2 can be The fixing portion 23 is rotatably and withdrawn from the locking hole 51 of the second plate body 5. When the fixing portion 23 of the fixing member 2 is withdrawn from the locking hole 51 of the second plate body 5, the sleeve can be engaged by the outer sleeve 3 1 interlocking the first plate body 4 and withdrawing from the second plate body 5, so that the user can quickly lock or separate the first plate body 4 and the second plate body 5 by manual torque rotation. And has the effect of simple operation and plate-to-board separation more labor-saving; or can be fitted to the trigger portion 31 of the outer sleeve 3 through a manual hand tool (such as an open-end wrench, a movable ammonium hand or a socket wrench, etc.) The fixing surface 23 of the fixing component 2 can be rotated and the second plate can be rotated by the manual manipulation of the hand tool to rotate the outer sleeve 3 to be linked to the head 21 of the fixing component 2 to be simultaneously rotated. The locking hole 51 of the body 5, thereby completing the disassembly of the first plate 4 The action from the second plate body 5.

In the present invention, since the outer side of the holding block 211 of the head portion 21 of the fixing member 2 is provided with at least one pair of opposite engaging surfaces 2111, when the head portion 21 is formed by the injection molding, the pulling portion 31 is formed. Forming a plurality of clamping faces 311 opposite to at least one pair of two clamping faces 311 will form a larger holding area for the user to conveniently hold and operate, thereby allowing the user to easily and in a freehand manner. The first plate body 4 is assembled or detached from the second plate body 5, and the hand tool or the electric tool is not required to be used, and the application is less susceptible to space and tools, so that the manual or electric screwdriver cannot be obtained. The mechanical tool is not working.

In addition, the holding block 211 of the head 21 of the present fixing member 2 is embedded in the fixing groove 301 above the working space 30 of the outer sleeve 3, and the plurality of fixing surfaces 2111 outside the holding block 211 are abutted against the fixing groove. When a plurality of blocking surfaces 3011 of the inner wall surface of the 301 are held by the user and are rotated by the pulling portion 31 of the outer sleeve 3, the plurality of locking surfaces 2111 can be used to abut the plurality of blocking surfaces 3011. A support surface is provided to enable the outer sleeve 3 to be easily rotated, thereby improving the overall operability and disassembly speed.

However, at the bottom surface of the head portion 21 of the present fixing member 2, a resisting block 213 is convexly disposed, and at least one set of two opposite side cutting surfaces 2131 are formed in a direction parallel to or perpendicular to the outer side of the plurality of engaging surfaces 2111. When the outer casing 3 is formed by inserting a mold (not shown) outside the head 21 and by injection molding, a plurality of side cut surfaces 2131 can be used to form a gap with the mold, and the gap can be used as a gap. The plastic feed hole is convenient for forming the outer sleeve 3.

Please refer to the seventh and eighth figures again. The external view and the side cross-sectional view after the lock is shown in the figure. It can be clearly seen that the ring groove 142 of the annular protrusion 14 of the sleeve 1 of the other embodiment can be further installed. Stopping washer 143, and the outer sleeve 3 can lengthen the overall height of the outer sleeve 3 according to the assembled form of the sleeve 1, and extend in the lower opening of the operating space 30 to form an annularly resisting body 32 bent inwardly. When the sleeve 1 is to be assembled on the first plate 4, it is first pressed against the surface 21 of the fixing member 2 or the surface of the outer sleeve 3, so that the annular abutting body 32 passes over the stop washer 143 and the ring is resisted. The inner side of the body 32 abuts against the lower portion of the stop washer 143, and when the sleeve 1 is assembled to the first plate body 4, the annular abutting body 32 can be pressed against the lower side of the stop washer 143. The overall center of gravity can be further stabilized, and it is not easy to cause the offset or sway caused by the external force vibration due to the elastic body 24 elastically supporting the head 21 of the fixing member 2, and the height of the outer sleeve 3 is increased. The inner fixing member 2 and the sleeve 1 can be protected, and the pulling and holding area of the pulling portion 31 can be increased. In order to improve the assembly, operational stability and smoothness of the effect.

Therefore, the above description is only a preferred embodiment of the present invention, and thus is not limited to the patent scope of the present invention. The head 21 of the fixing member 2 is disposed above the creation sleeve 1 and is adjacent to the periphery of the head 21. The holding block 211 is convexly disposed, and at least one pair of opposite engaging faces 2111 are disposed outside the holding block 211, and the shaft 22 and the rod penetrating into the through hole 11 of the sleeve 1 are extended on the bottom surface of the head 21 a fixing portion 23 at the lower portion of the body 22, and an outer sleeve 3 is formed on the head portion 21 by injection molding, and a fixing groove 301 for positioning and holding the holding block 211 is formed above the operating space 30 inside the outer sleeve 3, and The triggering portion 31 of the outer surface of the outer sleeve 3 is formed with at least one set of two opposite pulling surfaces 311 in the direction of the plurality of engaging surfaces 2111, so as to have a large holding area for hand holding and manipulation, thereby facilitating for The user can easily assemble or detach the first plate body 4 on the second plate body 5 in a freehand manner, thereby achieving the effect of being less susceptible to space and tools. Therefore, the structure and device that can achieve the aforementioned effects are subject to the present invention. Such simple modifications and equivalent structural changes shall be included in the scope of the patent of this creation and shall be combined with Chen Ming.

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

13‧‧‧ annular barrier

131‧‧‧ pushed top

14‧‧‧ ring convex

141‧‧ ‧ blocking surface

142‧‧‧ ring groove

2‧‧‧Fixed components

21‧‧‧ head

211‧‧‧ holding block

2111‧‧‧卡固面

212‧‧‧Operation Department

2121‧‧‧ longitudinal section

22‧‧‧ shaft

23‧‧‧ Fixed Department

231‧‧‧ external thread

232‧‧‧ by face

24‧‧‧ Elastomers

3‧‧‧Outer casing

30‧‧‧Working space

3011‧‧‧stop surface

31‧‧‧Turning Department

311‧‧‧ Pulling surface

Claims (10)

The fixing device comprises a sleeve, a fixing component and an outer sleeve, wherein: the sleeve has a longitudinal through hole and a positioning portion disposed at a hole below the through hole for positioning the preset first plate body; The fixing element has a head portion located above the sleeve, and a retaining block is convexly protruded outwardly at the periphery of the head, and at least one set of opposite engaging surfaces is disposed outside the holding block, and then extends on the bottom surface of the head. a shaft penetrating into the perforation, and a fixing portion for fixing in a locking hole of the preset second plate body is extended under the shaft body, and the elastic member is elastically supported between the fixing member and the sleeve; the outer casing The inside of the tube is formed with an operating space covering the sleeve and the outside of the fixing component, and a fixing groove for positioning and holding the fixing block is recessed above the working space, and then a pulling part is arranged on the outer surface of the outer sleeve, and the pulling part is The moving portion is provided with at least one set of two opposite pulling faces in the direction of the solid surface of the plurality of cards. The fixing device according to claim 1, wherein the peripheral edge of the perforation of the sleeve is formed with a flattened top surface facing outward. The fixing device according to claim 1, wherein the sleeve is provided with an annular blocking portion extending obliquely toward the perforation with respect to the other side of the positioning portion, and the upper and lower surfaces of the annular blocking portion are respectively formed with Push the top surface and the stop surface. The fixing device according to claim 1, wherein a distance between the outer portion of the sleeve and the upper portion of the positioning portion is a ring convex portion, and a flat shape is formed on the top surface of the annular convex portion for the elastic body. One end supports the blocking surface. The fixing device of claim 4, wherein the ring protrusion of the sleeve is located below the blocking surface, and is provided with a ring groove, and a retaining washer is arranged in the ring groove, and the outer ring is provided. An opening of the sleeve below the opening of the casing extends inwardly and is supported by the annular abutting body at a position below the stop washer. The fixing device of claim 1, wherein the top surface of the head of the fixing component is provided with an actuating portion, and the inner portion of the actuating portion is disposed at least in the direction of the plurality of rigid faces. section. The fixing device according to claim 1, wherein the fixing member has a bottom portion at a bottom surface of the fixing member, and at least one of the outer side of the resisting block is parallel or perpendicular to the plurality of fixing surfaces. Two opposite side cuts. The fixing device according to claim 1, wherein a fixing portion of the fixing member has a large outer diameter extending portion, and an external thread is provided on the surface of the fixing portion, and the top surface of the fixing portion is adjacent to There is a hinge on the shaft. The fixing device according to claim 1, wherein the shaft and the fixing portion of the fixing member are sleeved with an elastic body, and an outer diameter of the elastic body is smaller than an outer diameter of the head and larger than a sleeve. Outer diameter. The fixing device according to claim 1, wherein the inner wall surface of the fixing groove of the outer sleeve is provided with a stopping surface for a plurality of fastening surfaces to abut.