TWI735178B - Screw member - Google Patents

Abstract

The invention relates to a screw member. It comprises a screw, a nut and a fixing pin. At least one first groove is provided on a surface of a rod body of the screw along an axial direction, and at least one second groove is provided on an inner surface of the nut along the axial direction. Accordingly, when the screw is screwed into the nut, the first groove of the screw and the second groove of the nut form an engaging space. Furthermore, the fixing pin is inserted into the engaging space, so that the screw is firmly locked with the nut.

Description

Screw components

The invention relates to a screw fixing element, in particular to an innovative structural design of a screw fixing element in which a screw rod and a nut are locked.

Generally, the screw and nut are locked in place by the mutual engagement of the external and internal threads provided with each other. However, due to the lock setting of the screw and the nut, only through the mutual thread engagement, in case of vibration Or external force will easily cause the screw and the nut to loosen; Moreover, when the length of the screw is long, the distance between the screw and the nut is longer, and the time it takes to lock the screw is long. The construction of the area is quite time-consuming and labor-intensive, which is not conducive to the development of the industry.

Now, the inventor of the present invention has developed the screw element of the present invention in view of the above-mentioned defect caused by the locking of the traditional screw and the nut.

The screw fixing element of the present invention is realized by the following technology:

A screw-fixing element includes a screw, a nut and a fixing pin; wherein: the screw has a head on a rod connected to the bottom surface of the head, and the rod is on the circumferential surface and along the axis At least one first groove is provided on the shaft, and at least one first threaded section is formed on the circumferential surface of the rod body where the first groove is not provided, and the first threaded section includes peaks and valleys; The nut is provided with at least one second groove along the axial direction on its inner ring surface, and at least one second groove is formed on the inner ring surface where the second groove is not provided on the inner ring surface of the nut. A threaded section, the second threaded section includes peaks and valleys, the second threaded section and the first threaded section are screw-locked in cooperation, and the second groove can correspond to the first groove and be formed together Detent space; the positioning pin is a round rod body for embedding in the detent space.

The screw fixing element as described above, wherein, on the outer peripheral surface of the rod body of the screw rod, there are provided two of the first recesses equally arranged, and the peripheral surface between the two first recesses The first threaded section is formed on the upper part, so that the two first threaded sections are also arranged in equal parts, and the inner ring surface of the nut is correspondingly provided with two equal second grooves. The second threaded section is formed on the circumferential surface between the second recesses, so that the two second threaded sections are also arranged equally.

The screwing element as described above, wherein the screwing element further includes a positioning piece, the positioning piece includes a first side, a second side, and a third side, and the two ends of the first side are respectively connected to the The second side and the third side make the positioning piece a horseshoe-shaped piece. The second side and the third side form a convex portion facing each other's inner edges. The first groove is adapted, and the distance between the inner edges of the second side and the third side facing each other is smaller than the peak-to-peak distance of the first threaded section, and is compared with the first threaded section. The distance between the valley to the valley is adapted.

The screw fixing element as described above, wherein the convex portion is provided with a hole.

The screw fixing element as described above, wherein, on the outer peripheral surface of the rod body of the screw, there are provided three of the first grooves equally arranged, and the circumferential surface between two of the first grooves The first threaded section is formed on the upper part, so that the three first threaded sections are also arranged in equal parts, and the inner ring surface of the nut is correspondingly provided with three equal second grooves. The second threaded section is formed on the circumferential surface between the second grooves, so that the three second threaded sections are also arranged equally.

The screw fixing element as described above, wherein the head of the screw is provided with a perforation penetrating the head, and the perforation corresponds to the first groove.

The effect of the present invention:

1. The screw fixing element of the present invention, when the screw is inserted into the nut, can use the first thread section of the screw to correspond to the second recessed groove of the nut without thread, and the first recess of the screw without thread Corresponding to the second thread section of the nut, so that the screw can quickly move in the nut without being blocked until it reaches the locked height, and then rotate the screw so that the first thread section of the screw corresponds to the second thread of the biting nut Section, set the screw and nut lock in position.

2. For the screw fixing element of the present invention, after the screw is penetrated into the nut, the positioning pin is inserted into the locking space formed by the first groove and the second groove, which can ensure the locking between the screw and the nut State, not easy to loosen.

3. The screw-fixing element of the present invention can further be set through the positioning piece, and firstly insert a large number of screws into the nut. After reaching the required height, the positioning piece is removed from the first thread section of the screw. The groove is inserted until the convex part is stuck in the first groove, so that the positioning piece is positioned on the screw. At the same time, the bottom surface of the first to the third side of the positioning piece is also attached to the top surface of the nut, so that the screw is positioned. The pieces are supported and erected, and after all the screws have roughly completed the movement of penetrating into each nut with an appropriate length, the screws are screwed into the nut one by one to lock the fixed position to speed up the locking time.

1: screw

11: head

111: Piercing

12: Rod body

13: The first groove

14: Circumferential surface

15: The first thread segment

151: Peak

152: Valley

2: nut

21: inner ring surface

22: second groove

23: The second thread segment

231: Peak

232: Valley

A: Card space

3: positioning piece

31: First side

32: second side

33: third side

321, 331: convex part

322, 332: hole

4: fixed pin

Figure 1: A three-dimensional exploded view of the screw fixing element of the present invention

Figure 2: A perspective view of the screw of the present invention penetrated into the nut

Figure 3: A side view of the screw rod of the present invention that can move up and down when inserted into the nut

Figure 4: The top view of the screw rod of the present invention that can move up and down when inserted into the nut

Figure 5: A three-dimensional view of the screw rod of the present invention that is inserted into the screw cap to a desired height after the positioning piece is inserted into the screw rod

Figure 6: A three-dimensional view of the screw of the present invention inserted into the nut to a desired height and the positioning piece is inserted on the screw

Figure 7: A side view of the positioning plate of the present invention after being inserted into the screw

Figure 8: The top view of the positioning plate of the present invention after being inserted into the screw

Figure 9: A three-dimensional view of another embodiment of the screw rod of the present invention in which the positioning piece is to be inserted into the screw after the screw is penetrated into the nut to a desired height

Figure 10: A three-dimensional view of the fixing pin of the present invention to be inserted into the detent space

Figure 11: A perspective view of the fixing pin of the present invention inserted into the detent space

Figure 12: A top view of the fixed pin of the present invention inserted into the detent space

Figure 13: A schematic top view of the screw rod of the present invention with three first grooves equally divided and three second grooves equally divided by the nut

Figure 14: In the embodiment shown in Figure 13, the top view of the fixed pin inserted into the detent space

Figure 15: A perspective view of the first thread section on the screw of the present invention being intermittently arranged

Figure 16: The three-dimensional exploded schematic diagram of the screw head of the present invention with perforations for the fixing pins to pass through

Figure 17: The three-dimensional schematic diagram of the screw head of the present invention with perforations for the fixing pins to pass through

In order to make a more complete and clear disclosure of the technical content, the purpose of the invention and the effects achieved by the present invention, we will explain them in detail below, and please also refer to the figures disclosed. Style and drawing number:

Please refer to the first and tenth pictures.

The screw element of the present invention includes a screw 1, a nut 2 and a fixing pin 4; wherein: the screw 1 has a head 11 and a rod 12 connected to the bottom surface of the head 11, and the circumferential surface of the rod 12 At least one first groove 13 is provided on 14 along the axial direction of the rod body 12. The present invention is illustrated by taking two first grooves 13 as an example in the first and tenth figures. The two first grooves 13 are arranged at equal angular intervals (please refer to the fourth figure). A first threaded section 15 is formed on the circumferential surface 14 between the two first grooves of the rod body 12 and the first threaded section 15 Contains peaks 151 and valleys 152; nut 2, at least one second groove 22 is provided on its inner ring surface 21 along the axial direction of the nut 2. The present invention uses two second grooves in the first and tenth figures 22 is an example description. The two second grooves 22 are arranged at equal angular intervals (please refer to the fourth figure). A second thread section 23 is formed between the two second grooves 22 of the inner ring surface 21 of the nut 2 and the second thread section 23 includes peaks 231 and valleys 232. The second threaded section 23 and the first threaded section 15 are screwed together. The first groove 13 can correspond to the second groove 22 and jointly form a latching space A (please refer to Figure 12). ); The fixing pin 4 is a round rod body for embedding in the detent space A (please refer to the tenth to twelfth figure).

The screw component of the present invention may further include a positioning piece 3 (please refer to the eighth figure together), which includes a first side 31, a second side 32, and a third side 33. The two ends of the first side 31 are connected to each other. The second side 32 and the third side 33 make the positioning piece 3 a horseshoe-shaped piece. The second side 32 and the third side 33 form convex portions 321, 331 facing each other's inner edges, and the convex portions 321, 331 and the first side A groove 13 is fitted, and the distance between the inner edges of the second side 32 and the third side 33 facing each other is smaller than the distance from the peak 151 to the peak 151 of the first thread section 15, and is with the valley of the first thread section 15 The distance between 152 and valley 152 is adapted.

When implementing, please refer to the second to twelfth pictures. Firstly, a large number of screws 1 are initially inserted into the nut 2 (please refer to the second to fourth pictures). Because the first thread section 15 of the screw 1 corresponds to the inner peripheral wall of the nut 2 without threads (that is, the second concave Groove 22), and the outer peripheral wall of the screw 1 without threads (ie, the first groove 13) corresponds to the second thread section 23 of the nut 2, so that the screw 1 can be quickly moved in the nut 2 without being blocked. , Move down until the screw 1 reaches the required height for locking, and then lock the screw 1 so that the first threaded section 15 of the screw 1 corresponds to the second threaded section 23 of the nut 2 to be locked and locked, and the screw 1 is quickly completed. It is fixed with the lock of the nut 2. Of course, after the screw 1 penetrates the nut 2 and reaches the required height for locking, the positioning piece 3 can be inserted into the valley 152 of the first thread section 15 above the screw 1 relative to the nut 2 (please refer to the fifth ~8), when the two convex parts 321, 331 of the positioning piece 3 are respectively locked into the two first grooves 13 on the rod body 12, the positioning piece 3 will be positioned on the screw 1. At this time, even if the screw 1 is released, The bottom surface of the first side 31 to the third side 33 of the positioning piece 3 is still attached to the top surface of the nut 2, so that the screw 1 will not fall as if supported by the positioning piece 3, and wait until all the screws 1 are roughly completed. After the length of each nut 2 is inserted into the action, then remove the positioning piece 3 one by one while turning The screw 1 is screwed into the nut 2 to lock the fixed position, and the fixing pin 4 is inserted into the locking space A formed by the first groove 13 and the second groove 22 (please refer to the tenth to twelfth figure), and it is completed quickly The screw 1 and the nut 2 are locked and fixed. Of course, as shown in the ninth figure, the positioning piece 3 can be inserted into the valley 152 of the first thread section 15 under the screw cap 2 relative to the screw 1, so that the first side 31 to the third side 33 of the positioning piece 3 The top surface of the screw nut is attached to the bottom end surface of the nut 2, which can also achieve the effect of preliminary fixing of the combined height between the screw 1 and the nut 2. In addition, in order to facilitate the removal of the positioning piece 3, holes 322, 332 can be further provided on the convex portions 321, 331 of the positioning piece 3, so that tools can be inserted into the holes 322, 332 to force the convex portion 321 to escape from the first recess of the screw 1. Ditch 13.

Please refer to Figures 13 to 14 again, which is another embodiment of the present invention. Its structure is roughly the same as that of the embodiment in Figures 1 to 12, except for the screw rod 1 of this embodiment. Three first grooves 13 are provided on 12, and first thread segments 15 are provided between two adjacent first grooves 13; and the inner ring surface 21 of the nut 2 is provided with three second grooves 22 , And a second threaded section 23 is provided between the two adjacent second grooves 22, which can also achieve the implementation aspects as shown in the first to the twelfth figures.

Furthermore, the first threaded section 15 on the rod body 12 of the screw 1 can be continuously arranged at the same equal division as shown in the first figure, or can be separated at the same equal division as shown in the fifteenth figure. Continue setting.

Please refer to the sixteenth to seventeenth figures, the head 11 of the screw 1 is provided with a perforation 111 penetrating the head 11, and the perforation 111 corresponds to the first recess 13 and serves as a screw After the rod 1 is locked with the nut 2, the fixing pin 4 is inserted through the through hole 111 into the latching space A formed by the first groove 13 and the second groove 22.

The above-mentioned examples are only part of the embodiments of the present invention, and are not intended to limit the present invention. Any modification based on the creative spirit and characteristics of the present invention should also be included in the scope of this patent.

In summary, the embodiments of the present invention can indeed achieve the expected use effects, and the specific technical means disclosed by it have not been seen in similar products, nor have they been disclosed before the application. It is in full compliance with the patent law. Regulations and requirements, Yan submits an application for a patent for invention in accordance with the law, and asks for favors for examination, and grants a patent for approval, which is really convenient.

1: screw

11: head

12: Rod body

13: The first groove

14: Circumferential surface

15: The first thread segment

2: nut

21: inner ring surface

22: second groove

23: The second thread segment

3: positioning piece

31: First side

32: second side

33: third side

321, 331: convex part

322, 332: hole

Claims (8)

A screw-fixing element includes a screw, a nut, a fixing pin, and a positioning piece; wherein: the screw has a head connected to a rod body connected to the bottom surface of the head, and a circumferential surface of the rod body And at least one first groove is provided along the axial direction, and at least one first thread section is formed on the circumferential surface of the rod body where the first groove is not provided, and the first thread section includes a peak and Valley; the nut on its inner ring surface is provided with at least one second groove along the axial direction, and the nut inner ring surface is formed on the inner ring surface where the second groove is not provided At least one second threaded section, the second threaded section includes peaks and valleys, the second threaded section and the first threaded section are screw-locked in cooperation, and the second groove can correspond to the first groove Grooves and jointly form a latching space; the positioning pin is a round rod body for inserting into the latching space; the positioning piece includes a first side, a second side, and a third side, and the first side has two ends The second side and the third side are connected to each other so that the positioning piece is a horseshoe-shaped piece. The inner edges of the second side and the third side facing each other form a convex portion, and the convex portion Fitted with the first groove, the distance between the inner edges of the second side and the third side facing each other is less than the peak-to-peak distance of the first thread segment, and is compared with the first The distance between the valley to the valley of the thread segment is adapted. The screw-fastening element according to claim 1, wherein two of the first grooves are provided on the outer peripheral surface of the rod body of the screw, and two first grooves are provided between the two first grooves. The first threaded section is formed on the circumferential surface, so that the two first threaded sections are also arranged equally, and the inner ring surface of the nut is correspondingly provided with two equally divided second grooves. The second threaded section is formed on the circumferential surface between the two second grooves, so that the two second threaded sections are also arranged equally. The screw-fastening element according to claim 1 or 2, wherein the convex portions of the second side and the third side are provided with holes. The screw fixing element according to claim 3, wherein the head of the screw is provided with a perforation penetrating the head, and the perforation corresponds to the first groove. The screw fixing element according to claim 1 or 2, wherein the head of the screw is provided with a perforation penetrating the head, and the perforation corresponds to the first groove. The screw-fastening element according to claim 1, wherein the outer peripheral surface of the shaft of the screw is provided with three first grooves equally arranged, and all the first grooves are located between two of the first grooves. The first threaded section is formed on the circumferential surface, so that the three first threaded sections are also arranged equally; and the inner ring surface of the nut is correspondingly provided with three equally divided second grooves. The second threaded section is formed on the circumferential surface between the two second grooves, so that the three second threaded sections are also arranged equally. The screw-fastening element according to claim 6, wherein the convex portions of the second side and the third side are provided with holes. The screw fixing element according to claim 6 or 7, wherein the head of the screw is provided with a perforation penetrating the head, and the perforation corresponds to the first groove.

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