TWM615727U - Lock member - Google Patents

Abstract

The lock piece of the present invention includes a screw head, a rod body, and a screw thread section. The rod body is protrudingly provided with first and The second cutting unit, and the two ends of the guide rib of the first cutting unit and the two ends of the convex rib of the second cutting unit are not connected with the threads, so there are gaps, and the gaps Connected with each other so that a chip-containing groove is formed between the threads provided for the first and second cutting units. Therefore, the first cutting unit assists the end of the rod to generate preliminary drilling of the object. The second cutting unit cooperates with the thread segment to quickly drill and cut into the object, effectively reducing the drilling torque to increase the locking speed, and the chip-containing groove is not only conducive to chip removal but also part of the chip It is accommodated inside to increase the fastening force between the locking piece and the object to achieve a quick drilling and locking effect.

Description

Locking pieces

This creation is related to the design of a kind of screw, especially a kind of lock.

Check, referring to Figure 1, the conventional screw 1 includes a screw head 11, a rod body 12 extending outward from the screw head 11, and a spiral ring arranged on the rod body 12 and composed of a plurality of threads 131 Thread section 13; wherein, the rod body 12 has an end 121 opposite to the screw head 11; therefore, when the screw 1 is used on an object 2 for locking operation, the free end can be caused by the screw head 11 Driven by the drive, the object 2 is screwed into the object 2 and the threaded segment 13 is guided to be continuously screwed into the object 2 so that the locking and positioning effect of the screw 1 can be achieved.

However, after actual use, it was found that in the process of locking the object 2 with the conventional screw 1, although the end 121 and the screws 131 can be used to drill and lock the object 2, in view of the The end 121 has a tapered design. Therefore, a pushing driving force must be used to force the end 121 to be pushed into the object 2 when it is locked, so that the object 2 and the object 2 The initial contact of the end 121 is to withstand the squeezing action instead of being effectively subjected to the drilling and cutting action. It will invisibly produce urgent resistance to the screws 131 that are subsequently engaged with the twist lock, and the chips generated during the lock will also be affected. The resistance caused by extrusion cannot be smoothly eliminated, which not only increases the torque of the drill lock of the screw 1, but also makes the screw 1 unable to enter the object 2 smoothly and quickly during the locking stroke, thereby affecting the locking industry. At the same time, when the object 2 is forced to enter by the screw 1, the object 2 will be cracked, which needs to be improved.

Therefore, the purpose of the present invention is to provide a lock that can use the auxiliary drilling and cutting effect generated in advance to effectively reduce the resistance and torque during the initial lock, so as to increase the drilling and locking speed and greatly improve the positioning and locking force. And other effects.

Therefore, a lock of the present invention includes a screw head, a rod body extending outward from the screw head, and a screw thread segment formed on the rod body and formed by a plurality of threads. The rod body is provided with a first cutting unit spaced apart from the end, and a second cutting unit located between the first cutting unit and the screw head, and the first cutting unit has at least two spaced and convex The guide ribs are provided on the rod body, and the two ends of each guide rib are not connected with the threads. In addition, the second cutting unit has at least two intervals and is protruding from the rod The convex ribs on the body, and the two ends of each convex rib are not connected with the threads, so that the second cutting unit and the first cutting unit are spaced apart from each other, and the guide ribs and the convex ribs Because it is not connected to the threads on the two sides, there are gaps, and the gaps communicate with each other to form an accommodating groove; therefore, the first cutting unit assists the end in the early stage of locking The parts of the drill lock form the positioning of the drilling and cutting to reduce the application of the driving force at the initial stage of the locking, and the ribs cooperate with the thread segment to continue the rapid rotary lock drilling and cutting entry, which greatly effectively increases the locking speed and reduces the locking The accommodating groove can be used for chip removal, and at the same time, the accommodating groove can be used for part of the chips to be appropriately accommodated in it to increase the locking and positioning of the locking member and The fastening force of the object to be locked, and to achieve the quick drilling and locking of the locking element in the object.

The foregoing and other technical contents, features and effects of the present invention will be clearly understood in the following detailed description of the preferred embodiment with reference to the drawings.

Referring to FIG. 2, a preferred embodiment of the locking element 3 of the present invention includes a screw head 31, a rod body 32 extending outward from the screw head 31, and a spiral ring arranged on the rod body 32 and composed of a plurality of A thread segment 33 composed of threads 331; wherein a thread pitch P is formed between any two adjacent threads 331, and the rod body 32 has an end 321 opposite to the thread head 31, and the rod body 32 defines a centerline α.

Following the foregoing, the rod body 32 is provided with a first cutting unit 34 spaced apart from the end portion 321, and a second cutting unit 35 located between the first cutting unit 34 and the screw head 31, and the aforementioned The first cutting unit 34 has at least two guide ribs 341 spaced apart and protruding from the rod body 32. Each guide rib 341 extends between the threads 331 of the thread segment 33, and each The guiding rib 341 is formed with a first upper end point 341a and a first lower end point 341b located in opposite directions, and the first upper and lower end points 341a, 341b are not connected to the first upper and lower end points 341a, 341b. The screws 331 are connected, and the second cutting unit 35 has at least two spaced apart protruding ribs 351 protruding from the rod body 31, and each protruding rib 351 extends on the screw teeth of the screw segment 33 331, and each rib 351 is formed with a second upper end 351a and a second lower end 351b in opposite directions, and the second upper and lower ends 351a, 351b are not connected to the second upper and lower ends. The threads 331 on the two sides of the points 351a and 351b are connected so that the second cutting unit 35 and the first cutting unit 34 are spaced apart from each other. At the same time, the guide ribs 341 and the protruding ribs 351 are not connected to the The threads 331 on the two sides leave gaps c, and the gaps c communicate with each other to form an accommodating groove d.

In particular, in this embodiment, the guiding ribs 341 of the first cutting unit 34 and the ribs 351 of the second cutting unit 35 are arranged alternately, and the first cutting unit 34 extends the screws. When the teeth 331 are located, each guide rib 341 crosses at least one thread 331 in the thread segment 33, and when the second cutting unit 35 is extended between the threads 331, each protrusion The rib 351 crosses at least one thread 331 in the thread segment 33, and the guide ribs 341 and the protruding ribs 351 are formed on the rod body 32 in parallel to the center line α, as shown in the figure. As shown in 2, or the guiding ribs 341 are formed on the rod body 32 in a manner parallel to the center line α, and the protruding ribs 351 are formed on the rod body in a manner inclined to the center line α 32, that is, as shown in FIG. 3, or the guiding ribs 341 are formed on the rod body 32 in a manner inclined to the center line α, and the protruding ribs 351 are arranged parallel to the center line α Is formed on the rod body 32, as shown in FIG. 4, or the guiding ribs 341 and the protruding ribs 351 are formed on the rod body in a shape inclined to the center line α. 32 upper-level settings, that is, as shown in Figure 5, the following is an example of Figure 5 for description.

5 and 6, when in use, the end portion 321 can be pressed against an object 4, and a torsion driving force is applied to the screw head 31 by a driving tool (not shown in the figure), so that the The end portion 32 is driven by the driving force to enter the object 4, and then the guide ribs 341 will use the end portion 321 as a positioning fulcrum to assist the end portion 321 to produce a rotary cutting action on the object 4. Through the design of the spacing between the guiding ribs 341, when the guiding ribs 341 contact the object 4, the drilling effect is immediately generated, so that the end portion 321 can enter smoothly with almost no resistance. In the object 4, at the same time, under the continuous linkage of the driving force, the ribs 351 which are arranged in a staggered arrangement with the guide ribs 341 further assist the screws 331 to continue the drilling and locking operation. , In order to drill and cut the fibers produced by the guide ribs 341, push them and properly cut them before they are wound around the threads 331, which greatly effectively improves the initial stage of the threads 331. The speed of locking into the object 4, and at the same time through the gap c and the accommodating groove d, can provide external discharge of the chips generated during drilling, and also allow part of the chips to be properly contained therein, thereby Increasing the fastening force between the locking member 3 and the object 4 after the locking and positioning, not only can effectively improve the smoothness of the initial drilling and cutting, and reduce the resistance and torque during drilling and cutting, but also can greatly improve the locking member 3 The overall drilling and locking speed effectively achieves the fast drilling and locking effect.

Summarizing the foregoing, the present invention protrudes from the rod body with first and second cutting units spaced apart from each other and extending between the threads of the thread segment, and passing through the guide ribs of the first cutting unit The two ends and the two ends of the ribs of the second cutting unit are not connected with the threads, so there are gaps, and the gaps are connected to each other so that the first and second cutting units are provided with the The design of a chip-containing groove is formed between the equal threads, so that the first cutting unit is used to assist the end point to locate the fulcrum of the object to be locked during the locking process, and to achieve the preliminary drilling and cutting effect, and then the first cutting unit The two cutting units assist the threads to continue the end point to perform rotary cutting of the object, and appropriately push and cut the fibers formed during the locking process, so as to reduce the torque generated by the threads during drilling and cutting. , Effectively improve the smoothness of the screw locking, and then use the chip-containing groove to remove chips and allow some chips to be properly contained therein, so as to enhance the fastening force between the fastener and the object, and Achieve the effect of fast drilling and locking.

However, what has been described above is only to illustrate the preferred embodiments of the present model, and should not be used to limit the scope of implementation of the present model, that is, the simple equivalent changes and modifications made in accordance with the scope of the patent application of the present model and the content of the model specification , Should still fall within the scope of this new patent.

(Acquaintance) 1: screw 11: Screw head 12: Rod body 13: Thread segment 121: end 131: Thread 2: Object (This new model) 3: Locking parts 31: Screw head 32: Rod body 33: Thread segment 34: The first cutting unit 35: The second cutting unit 321: Endpoint 331: Thread 341: Guiding Rib 341a: The first upper endpoint 341b: The first lower endpoint 351: Convex Rib 351a: second upper end point 351b: second lower endpoint 4: Object c: gap d: accommodating groove P: Pitch α: Center line of rod

Figure 1 is a schematic diagram of a conventional screw. Figure 2 is a schematic diagram of a preferred embodiment of the present invention. 3 to 5 are schematic diagrams of other arrangements of the first and second reaming units of the preferred embodiment. FIG. 6 is a schematic diagram of the locked state of the preferred embodiment of FIG. 5. FIG.

3: Locking parts

31: Screw head

32: Rod body

33: Thread segment

34: The first cutting unit

35: The second cutting unit

321: Endpoint

331: Thread

341: Guiding Rib

341a: The first upper endpoint

341b: The first lower endpoint

351: Convex Rib

351a: second upper end point

351b: second lower endpoint

c: gap

d: accommodating groove

P: Pitch

α: Center line of rod

Claims (5)

A lock piece, comprising a screw head, a rod body extending outward from the screw head, and a screw thread segment formed by a plurality of threads arranged on the rod body and a spiral ring; wherein, any two phases A thread pitch is formed between adjacent threads, and the rod body has an end opposite to the thread head; it is characterized in that: The rod body is provided with a first cutting unit spaced apart from the end, and a second cutting unit located between the first cutting unit and the screw head; wherein the first cutting unit has at least two spaced apart And the guiding ribs protruding on the rod body, each guiding rib is formed with a first upper end point and a first lower end point located in opposite directions, and the first upper and lower end points are not connected to the first upper end point and the first lower end point located on the The threads on the two sides of an upper and lower end are connected; in addition, the second cutting unit has at least two spaced apart convex ribs protruding from the rod body, and each convex rib is formed with an opposite direction The second upper end point and the second lower end point, and the second upper and lower end points are not connected with the threads on the two sides of the second upper and lower end points, so that the second cutting unit and the first The cutting units are spaced apart, and the guiding ribs and the protruding ribs are not connected to the threads on the two sides, leaving gaps, and the gaps are communicated with each other to form an accommodating groove. The lock according to claim 1, wherein the rod body defines a center line, and the guiding ribs are inclined to the center line. The lock according to claim 1, wherein the rod body defines a center line, and the protruding ribs are inclined to the center line. The lock according to claim 1, wherein the guiding ribs of the first cutting unit and the protruding ribs of the second cutting unit are arranged in a staggered arrangement with each other. The lock according to claim 1, wherein when the first cutting unit extends between the threads, each guide rib spans at least one thread in the thread segment, and the first cutting unit When the two cutting units extend between the threads, each protruding rib spans at least one thread in the thread segment.

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