TWI873785B - Fixing device - Google Patents

Abstract

The present invention is a fixing device, which includes a sleeve and a locking element, wherein the sleeve includes a base and a sleeve, and the base is a cylinder with a through-shaped through-space formed inside, and a compression annular groove is formed around the periphery of the outer wall of the cylinder, and a receiving hole is provided at the supporting annular edge above the cylinder, and the inner wall of the cylinder has a protruding inner annular edge, and the sleeve is a tube with an accommodating space for the cylinder to pass through, and one side of the head of the locking element is a rod body extending downward and being able to be inserted into the through-space of the sleeve and movable, and the bottom surface of the head has a The rod body has a locking portion extending from the sleeve at the lower part of the other side away from the head, wherein the head is displaced downward after being pressed by a preset die head of a preset pressure mold, so that the pushing surface of the head pushes against the barrel of the base to cause deformation and the supporting ring expands outward. The compression ring groove of the cylinder is closed after stamping and a limiting flange protrudes from the inner side of the inner ring edge and is located above the locking portion. The supporting ring edge and the limiting flange are deformed by stamping once to prevent the sleeve and the locking element from separating, thereby saving the cost and time of secondary stamping.

Description

Fixed device

The present invention relates to a fixing device, in particular, a fixing device, which is provided with a supporting ring edge and a compression ring groove on the base of a sleeve, and is deformed by being pushed and squeezed after being pressed downward by the die head of a pressurized die, so that the supporting ring edge is expanded outward and the compression ring groove is closed by a single punching, so as to push the protrusion inward to prevent the locking element from coming out, thereby saving the cost and time of a secondary punching.

Generally, when assembling panels (board to board), they are locked using positioning screws with knobs, collars and screws. The screws and collars are fixed on the first panel, and the knob is rotated to lock the screws into the second panel to form a preset position. After the screws are tightened with hand tools, the first panel is locked and fixed with the second panel to form a whole. It can be used on machine tools or other board-to-board connection panels.

Furthermore, some industry insiders have developed a fixing device composed of a cap, a screw and a positioning seat. The positioning seat of the fixing device is first fastened into the through hole of the plate, and then the screw is used to lock it to another plate to form a fixation. When the user removes the plate, the fixing device can still be fixed in the through hole of the plate through the positioning seat and will not be lost due to the user's negligence. However, since the caps of the commonly used fixing devices are mostly made of metal materials, and the screws and caps are combined in After that, it is necessary to use a pressurized mold or processing machine to stamp and press the cap to produce a buckle bump, and then the buckle bump of the cap can be embedded in the positioning seat to form a barrier so that the screw will not fall out of the positioning seat. In addition, a secondary processing assembly process is required to stabilize the screw in the fixing device, thereby increasing the overall assembly time and cost. This is the key point that those engaged in this industry are eager to study and improve.

Therefore, in view of the above problems and deficiencies, the inventor collected relevant information, evaluated and considered various aspects, and used his many years of experience in this industry to continuously try and modify, and finally designed this invention patent with a fixed device.

The main purpose of the present invention is that the fixing device includes a sleeve and a locking element, wherein the sleeve includes a base and a sleeve, and the base is a cylinder with a through-shaped through-space formed inside, and a compression annular groove is formed around the periphery of the outer wall of the cylinder, and a receiving hole is provided at the supporting annular edge above the cylinder, and the inner wall of the cylinder has a protruding inner annular edge, and the sleeve is a tube with a receiving space for the cylinder to pass through, and the head of the locking element has a rod body extending downward on one side that can be inserted into the through-space of the sleeve and move, and the bottom surface of the head has The rod body has a push surface, and a locking portion extending from the sleeve is provided at the lower part of the other side of the rod body away from the head, wherein the head is displaced downward after being pressed by a preset die head of a preset pressure mold, so that the push surface of the head pushes against the barrel of the base to cause deformation and the supporting ring expands outward, and at the same time The compression ring groove of the cylinder is closed after stamping and a limiting flange protrudes from the inner side of the inner ring edge and is located above the locking portion. The supporting ring edge and the limiting flange are deformed by stamping once to prevent the sleeve and the locking element from separating, thereby saving the cost and time of secondary stamping.

The secondary purpose of the present invention is that the inner wall surface of the tube portion of the sleeve has a protruding supporting inner edge.

Another purpose of the present invention is to expand the top side of the tube portion of the sleeve outward to form a handle.

Another purpose of the present invention is to provide a driving part on the top surface of the head of the locking element that can drive the head to rotate at an angle.

Another purpose of the present invention is to further sleeve an elastic element on the outside of the rod body of the locking element, and the elastic element is respectively supported on the bottom surface of the head and the bottom side of the receiving hole.

Another purpose of the present invention is that the bottom side of the tube portion of the base expands outward to form a bottom plate.

Another purpose of the present invention is that the base has a positioning portion on one side away from the tube.

1: Sleeve

11: Base

111: Cylinder

1110: Traversing Space

1111:Condensation annular groove

1112: Supporting the environment

1113: Accommodation hole

1114: Inner Ring

1115: Limiting flange

112: Base plate

113: Positioning unit

12: Casing

121: Management Department

1210: Accommodation space

1211: Support the inner edge

1212: Pull handle

2: Locking element

21: Head

211: Drive Department

212: Pushing surface

22:Shaft

23: Locking part

3: Elastic components

4: Pressurized mold

41:Mold base

42: Die head

[Figure 1] is a three-dimensional appearance diagram of the present invention.

[Figure 2] is a three-dimensional external view of the present invention from another viewing angle.

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

[Figure 4] is a three-dimensional exploded view of the present invention from another viewing angle.

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

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

Please refer to Figures 1 to 4, which are the three-dimensional appearance diagram, another perspective three-dimensional appearance diagram, three-dimensional exploded diagram and another perspective three-dimensional exploded diagram of the present invention. It can be clearly seen from the figures that the present invention mainly includes a sleeve 1 and a locking element 2, and the connection relationship between the aforementioned components is as follows:

The sleeve 1 comprises a base 11 and a sleeve 12, wherein the base 11 is a cylinder 111 having a through-shaped through-space 1110 formed inside, and a compression annular groove 1111 is formed around the outer wall of the cylinder 111, and a receiving hole 1113 is formed at the supporting edge 1112 above the cylinder 111, and the inner wall of the cylinder 111 has a protruding inner edge 1110. 114, and then the bottom side of the tube 111 is expanded outward to form a bottom plate 112, and a positioning portion 113 is protruded from the bottom side of the bottom plate 112, and the sleeve 12 is a tube 121 with a through-shaped accommodating space 1210 formed inside, and a protruding supporting inner edge 1211 is provided on the inner wall surface of the tube 121, and then a handle 1212 is expanded outward to form the top side of the tube 121.

The locking element 2 includes a head 21, and a driving part 211 of various types is provided on the top of the head 21, and the bottom of the head 21 has a push surface 212, and the head 21 extends downward from the center of the bottom of the other side of the driving part 211 to have a rod 22 that is inserted into the insertion space 1110 of the base 11 and moves, and the rod 22 is provided with a locking part 23 that passes through the sleeve 1 and is locked on a plate (not shown) at the bottom of the other side of the rod 22 that is away from the head.

Between the bottom side of the head 21 of the locking element 2 and the inner rim 1114 of the base 11, there is a resilient element 3 sleeved on the rod body 22, and the top surface of the head 21 of the locking element 2 is provided with the driving part 211 for locking or unlocking by hand tools, and the driving part 211 refers to a groove in the shape of a straight line, a cross, a hexagon or a plum blossom.

Please refer to Figures 5 and 6, which are the front and rear side cross-sectional views of the present invention after stamping. It can be clearly seen from the figures that when assembling the present invention, the sleeve 12 of the sleeve 1 is first sleeved on the barrel 111 of the base 11, so that the barrel 111 is located in the accommodating space 1210 of the sleeve 12, and then the rod 22 of the locking element 2 is inserted into the insertion space 1110 of the base 11 of the sleeve 1, so that the locking portion 22 below the rod 22 is locked. After passing through the receiving hole 1113 and the inner ring 1114, the bottom side of the sleeve 1 can be positioned in a die base 41 of a pressurizing die 4 and the bottom surface of the bottom plate 112 of the base 11 is abutted against the periphery of the top surface of the die base 41. Then, a die head 42 of the pressurizing die 4 is used to press downward on the head 21 of the locking element 2. The die base 41 can be stopped below the bottom plate 112 of the sleeve 1, so that the abutting surface 212 of the head 21 of the locking element 2 is pushed downward against the die base 41. The supporting ring edge 1112 on the outer side of the receiving hole 1113 of the base 11 is subjected to force to generate deformation, and the hole diameter is contracted and squeezed, so that the supporting ring edge 1112 is expanded and deformed outward and stops at the top side of the supporting inner edge 1211 of the sleeve 12 (as shown in FIG. 6 ), and the inner ring edge 1114 is affected by the force, and further squeezes the compression groove 1111 downward to form a closure, and the compression groove 1111 is closed. 1After closing, the inner ring edge 1114 forms a stop flange 1115 (as shown in FIG. 6) that protrudes inwardly into the insertion space 1110 and blocks the top side of the locking portion 23, thereby preventing the locking element 2 from being separated from the outside of the sleeve and presenting a movable docking state. The above-mentioned components can simultaneously expand the supporting ring edge 1112 outward and make the inner ring edge 1114 protrude inward to form the stop flange 1115 through one stamping, thereby saving the cost and time of secondary stamping.

Furthermore, the outer part of the shaft 22 of the locking element 2 of the present invention can be further covered with the elastic element 3, and the two sides of the elastic element 3 are respectively supported against the bottom surface of the head 21 and the bottom side of the receiving hole 1113 of the base 11, so that the elastic element 3 can be elastically supported against the bottom surface of the head 21 of the locking element 2, and the locking part 23 on the shaft 22 can be stopped and positioned by the inner ring 1114 at the bottom side of the receiving hole 1113. The sleeve 1 and the locking element 2 are in a state of active docking to prevent the locking element 2 from being separated from the sleeve 1 by external forces. Furthermore, the locking element 2 can be made of aluminum, copper, zinc alloy or other metal materials, but the technical features of the present invention are not limited thereto. Any changes or modifications that can be easily thought of by anyone familiar with the art within the field of the present invention should be covered within the scope of the patent application of the following case, which is for Chen Ming

The above is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Therefore, all simple modifications and equivalent structural changes made by using the contents of the present invention's specification and drawings should be included in the patent scope of the present invention and should be stated.

In summary, the fixing device of this invention can achieve its effect and purpose when it is actually applied. Therefore, this invention is a research and development with excellent practicality. In order to meet the application requirements of invention patents, an application is filed in accordance with the law. I hope that the review committee will approve this case as soon as possible to protect the inventor's hard work in research and development and creation. If the review committee of the Jun Bureau has any doubts, please feel free to write to instruct. The inventor will do his best to cooperate and feel very grateful.

1: Sleeve

11: Base

111: Cylinder

1110: Traversing Space

1111:Condensation annular groove

1112: Supporting the environment

1113: Accommodation hole

1114: Inner Ring

112: Base plate

12: Casing

121: Management Department

1210: Accommodation space

1211: Support the inner edge

1212: Pull handle

2: Locking element

21: Head

211: Drive Department

22:Shaft

23: Locking part

3: Elastic components

Claims (7)

A fixing device includes a sleeve and a locking element, wherein: the sleeve includes a base and a sleeve, and the base is a cylinder with a through-shaped through-space formed inside, and a compression annular groove is formed around the outer wall of the cylinder, and a receiving hole is provided at the supporting annular edge above the cylinder, and the inner wall of the cylinder has a protruding inner annular edge, and the sleeve is a tube with an accommodating space for the cylinder to pass through; one side of the head of the locking element is downwardly extended and can be inserted into the The rod body is movable and displaced in the insertion space of the sleeve, and the bottom surface of the head has a push surface, and a locking portion that penetrates the sleeve is provided at the lower part of the rod body far from the head, wherein the head is displaced downward after being stamped by the preset die head of the preset pressure mold, so that the push surface of the head pushes against the barrel of the base to produce deformation and the supporting ring expands outward, and at the same time, the compression ring groove of the barrel is closed after stamping and a limiting flange protrudes from the inner side of the inner ring and is located above the locking portion. A fixing device as described in claim 1, wherein the inner wall surface of the tube portion of the sleeve has a protruding supporting inner edge. A fixing device as described in claim 1, wherein the top side of the tube portion of the sleeve expands outward to form a handle. The fixing device as described in claim 1, wherein the top surface of the head of the locking element is provided with a driving portion that can drive the head to rotate at an angle. As described in claim 1, the fixing device, wherein the outer part of the rod body of the locking element is further provided with an elastic element, and the elastic element is respectively supported on the bottom surface of the head and the bottom side of the receiving hole. A fixing device as described in claim 1, wherein the bottom side of the tube portion of the base expands outward to form a bottom plate. A fixing device as described in claim 1, wherein the base has a positioning portion on a side away from the barrel.

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