TWI684712B - Stainless screw pairs of free loose fastener structure with green process - Google Patents

Abstract

The two lockable stainless and lossless screw pairs at two ends of the bolt are provided both to avid screw pairs stained or destroyed by strain force from loading and to decrease the cost because of energy consumption in traditional process of bolt or its cost from environmental pollution.

Description

Environment-friendly screw structure of full latch type stainless steel spiral pair

The invention relates to a screw device, in particular to a screw full-latch type fastening device capable of preventing loosening and a screw structure for reducing noise and environmental pollution.

It is known that a screw made of steel to form a device to fasten two objects is often called a screw structure or a fastener (Fastener), hereinafter referred to as a screw structure. The bolts (or screw rods) and nuts (commonly known as nuts, hereinafter referred to as nuts) of screw structural components are manufactured separately. The screw without a bolt head, with two nuts rotating from both ends of the screw to lock the two connected objects, is the earliest use of the physical characteristics of the spiral thread inside the nut and the spiral thread outside the screw, which can be gradually adjusted in a fine-tuning manner. Tighten and use the friction length to avoid loosening, to achieve a screw combination that locks the two connected objects. After the screw assembly tightens the two objects, the force and strain of the two objects that are fastened and connected are constantly changing; this causes the screw structure to continuously expand and contract or vibrate, which causes the nut to loosen over time. Therefore, the occurrence of disaster caused by loosening of the nut is the first shortcoming of the conventional screw assembly structure.

In order to save the screw locking one of the two nuts, the screw with the bolt head is manufactured. A screw with a fixed nut at one end is generally called a bolt (the same below). Learn Knowing the manufacture of bolts, the end of a round steel bar is straightened and cut by cold punching and pressing plate elements, and a bolt head with a hexagonal shape like a nut is produced, and the bolt head is preformed. This stamping process produces huge impact noise, which is very unfavorable to the site workers and the surrounding environment; it even causes environmental pollution problems. This is the second disadvantage of bolt manufacturing.

The manufacture of bolts for screw components is usually started by heating the coiled Panyuan steel first to make the Panyuan steel lattice spherical and then annealing. It is to soften the rigidity of Panyuan, which is easy to straighten and cut, and it is easier to hit the bolt head and roll out the thread. The heat treatment of the formed bolts is hardened again. This repeated heat treatment process wastes a lot of energy. This is the third shortcoming of the conventional bolt head process that is very complicated and consumes energy and is not environmentally friendly.

The screw assembly utilizes the principle of the friction force of its own circular surface to increase its rotating slope, and can fasten two or more objects along the thread trajectory. Therefore, a pair of spiral pairs formed by the external thread of the bolt and the internal thread of the nut has a great stress on the spiral rotating slope; the thread is galvanized in order to withstand the corrosion caused by moisture to avoid deformation and damage of the spiral pair Anti-rust treatment or using all stainless steel bolts and nuts. In order to prevent the screw pair formed by the external thread of the bolt and the internal thread of the nut from collapsing due to rust, it is known to prevent rust by galvanizing the surface of the thread. And galvanized chromium to prevent rust, must invest a lot of money in heavy metal pollution prevention equipment, making the heavy metal pollution water treatment costly. Therefore, the increasing unit cost of screws has caused the screw industry to survive in the global cost competitiveness crisis. This is the fourth shortcoming of the conventional spiral rust prevention process.

The four shortcomings of the screw manufacturing process must be innovative screw manufacturing methods or tightening technology to change the product structure, in order to solve the thread rust and traditional Process noise, water quality and heavy metal pollution treatment costs, and energy consumption can only meet the standards of industrial safety and environmental protection with more advanced technology.

The invention uses the fastening device of the screw pair full latch type stainless steel screw pair and its noise reduction and environmental protection process, and at the same time solves the four major shortcomings of the foregoing prior art, creating an environmentally friendly screw structure of the full latch type stainless steel screw pair, such as Figure 1-1, Figure 1-2, Figure 1-3 and Figure 1-4 are shown. This structure can simultaneously prevent the screws from loosening to avoid the occurrence of public security accidents, reduce the noise pollution caused by the bolt heads to protect the physical and mental health of employees, reduce heat consumption to save energy and reduce pollution for the purpose of long-term maintenance of a healthy environment. Figure 1-1 is a perspective view of the structure of an environmentally friendly screw with a full latch stainless steel screw pair, Figure 1-2 is a perspective view of a screw structure with a screw thread and a single groove on the outer wall, and Figure 1-3 is a perspective view of the structure of the head nut 1-4 is a three-dimensional perspective view of the structure of the screw nut at the end of the three grooves. Figure 1-1 shows the structure of the environmentally-friendly screw of this full-latch stainless steel spiral pair, including the following components: 12 is a screw with a thread and a single groove on the outer wall, 13 is a head nut, and 14 is a three-groove tail screw Tight nut, 151 is the object to be locked, 152 is the object to be locked, 161 is a washer, 162 is a washer, 17 is a spring washer, 18 is a bolt and other components.

The environmentally friendly screw structure of the full-latch stainless steel spiral pair of the present invention is shown in the perspective view of the screw structure with screw thread and single groove on the outer wall of FIG. 1-2, and the screw 12 with screw thread and single groove on the outer wall is a round steel rod 121 Inserted by a stainless steel pipe sleeve 122 with a threaded outer wall and a single groove welded together, and the outer diameter of the round steel rod is equal to the inner diameter of the stainless steel pipe sleeve with a threaded outer wall and a single groove; The stainless steel pipe sleeve 122 is a screw thread from which the outer wall of a stainless steel pipe is rolled, and a parallel axis is formed on the outer wall A screw groove 1220 is cut in the direction of the center; the screw groove 1220 has a screw thread and a single groove on the outer wall. The head end portion of the screw 12 is called the screw head groove 1221, and the screw groove and the single groove are on the outer wall. The end portion of the screw 12 of the screw 12 is called the screw end groove 1222; Fig. 1-3 shows the perspective view of the structure of the head nut. The head nut 13 is made of a stainless steel pipe sleeve 132 with threads and a single groove on the inner wall , Which is welded into an equilateral hexagonal steel column 131 with a round hole, and the single groove of the stainless steel pipe sleeve 132 with a thread and a single groove on its inner wall is parallel to the axis of the head nut 13 Figure 1-4 is a perspective view of the structure of the three-groove end screw nut, in which the three-groove end screw nut 14 is made of a stainless steel pipe sleeve 142 with threads and three grooves on the inner wall. The equilateral hexagonal steel column 141 with a round hole is welded together. The three grooves of the stainless steel pipe sleeve 142 with threads and three grooves on the inner wall are parallel to the axis of the nut 14 that is parallel to the end of the three grooves. And are parallel to each other on the inner wall of the nut at an angle of 120 degrees; the first washer 161 of the two washer is placed between the aforementioned head nut 13 and the object to be locked 151, and the second washer 162 It is placed between the object to be locked 152 and the spring washer 17; the spring washer 17 is placed between the second washer 162 and the screw nut 14 at the end of the aforementioned three grooves.

The device first rotates the head end nut 13 into the aforementioned screw head end, and after using the single groove in the head end nut to align the screw head end groove 1221, the head end nut end inserts the plug 18 first The single groove in the head end nut and the common groove formed by the screw head end groove 1221 form a latchable screw head end screw pair. The lockable screw head end screw pair can provide the tail end tightening nut 14 that fixes the three grooves, and the end end rotates to apply force to fasten the locked object 151 and the locked object 152. According to the United States RCSC (Research Council on Structural Connections) nut tighten According to the standard, the rotation of the nut 14 is tightened by the end of the three grooves mentioned above, so that the spring washer 17 starts to form a tight state and then rotates 120±30 degrees, which can achieve the following two functions at the same time: its first role is to achieve Rotate to the expected tightening torque value at the beginning; its second function is to rotate one of the three grooves in the screw nut of the three grooves until the groove is aligned with the groove at the end of the screw After the common groove is formed, the same bolt 18 is extended into the common groove again, and a full latch stainless steel spiral pair structure can be formed at the same time, as shown in Figure 2 of the environmentally friendly screw structure of the full latch stainless steel spiral pair As shown in the sectional view. In addition, the bolt 18 not only prevents the bolt from being loosened due to vibration during fastening, but also can be used for repeated disassembly during maintenance operations. Figure 2 is a cross-sectional view of the structure of an environmentally friendly screw with a full latch stainless steel screw pair. The two stainless steel screw pairs of the aforementioned stainless steel screw pair at the head end and the stainless steel screw pair at the tail end form a fully latched stainless steel screw pair, which can prevent the screw thread in the screw pair from being damaged due to corrosion and locking the tightening screw device to never reach The purpose of loosening.

For these innovative screw structures, in this device, the head nut 13 is rotated into the screw head end, and after the single groove in the head nut is aligned with the screw head end groove 1221, the plug 18 is inserted into The single groove in the head end nut and the common groove formed by the screw head end groove 1221 produce a nut that has a latching screw head end screw pair with a latching effect. The head of the screw structure is used to replace the bolt head of the conventional bolt to tighten the screw. This structure can solve the huge impact noise generated by the cold rolling stamping of the bolt head of the conventional bolt. It is beneficial to the health of on-site workers and the quiet effect of the surrounding environment, and solves the second shortcoming caused by the conventional screw assembly structure manufacturing.

The aforementioned two nuts having a combination of screw pairs with a latching effect, one of which replaces the fixed nut at the head end of the bolt head of the conventional bolt, in addition to avoiding the huge impact noise generated by the cold rolling stamping of the conventional bolt head; The biggest effect is to eliminate all shortcomings of the disk element process. Due to the conventional manufacturing of bolts for screw components, especially in the process of making bolts with bolt heads, the heat treatment process of Panyuan steel is first heated and annealed to make the lattice of the Panyuan steel be spherical. Then straighten and cut the Panyuan steel to make it easy to strike the bolt head and roll out the thread. After that, the heat treatment of the formed bolt hardening again is a waste of energy. In addition to the third shortcoming of this conventional bolt head energy-consuming process; the use of the process starting from Panyuan has the following disadvantages: (1) Panyuan process does not conform to linear manufacturing logic, (2) Panyuan storage space waste and Panyuan outdoor rust problems, (3) Panyuan must be rounded before the steel bar is shipped before delivery to the screw factory, (4) wasted energy before removing the rust, collimation, and sizing before the bolt is manufactured Huge equipment expenditures, (5) waste of energy and process time cost of Panyuan steel softening and hardening treatment, etc. Therefore, the problem of manufacturing the bolt head from the disk element must first be solved. The above-mentioned head nut with the combination of the latching screw pair is no longer necessary to hit the bolt head; it avoids the waste of the storage and transportation costs of the pan element and the cost of the rust and straightening of the pan element, and the lattice of the steel element of the pan element is shaped to Power consumption cost that is easy to make. Therefore, the third shortcoming of the conventional bolt head is very complicated and energy-consuming.

According to the innovative screw structure, a screw 12 with a threaded outer wall and a single groove in the present device is formed by welding a round steel rod 121 into a stainless steel pipe sleeve 122 with a threaded outer wall and a single groove. The stainless steel pipe sleeve 122 with screw threads and single grooves on the outer wall of the screw 12 is a rust-proof material of stainless steel, and does not have a large number of problems that are the cost of electroplating wastewater treatment and environmental pollution. Therefore, it can simultaneously solve the problems Cheng's water quality and heavy metal pollution treatment costs and energy consumption issues. In addition, the screw 12 with a thread and a single groove on the outer wall of the device is a round steel rod 121 made of a round steel rod material with a larger weight ratio, and is inserted into the outer wall with a smaller weight ratio with a thread and a single groove The anti-rust screw formed by welding in the grooved stainless steel pipe sleeve 122 can greatly reduce the cost of the entire conventional stainless steel bolt.

The environmentally friendly screw structure of the fully latched stainless steel screw pair of the present invention has the functions of saving energy, shortening the working process, reducing noise, reducing environmental pollution, reducing the pollution of working air and discharged water quality, and reducing the waste of ineffective space and transportation of the disk element. Transportation energy... and other environmental protection contributions, and can become a "green screw" structure called full latch stainless steel screw pair.

12‧‧‧ Screw with screw thread and single groove on the outer wall

121‧‧‧round steel rod

122‧‧‧Outer wall stainless steel pipe sleeve with thread and single groove

123‧‧‧Outer wall with threaded and single groove notched stainless steel pipe sleeve

1220‧‧‧Screw groove

1221‧‧‧ Groove at the end of the screw

1222‧‧‧End groove of screw

13‧‧‧Head nut

132‧‧‧ Stainless steel pipe sleeve with thread and single groove on the inner wall

131‧‧‧ Equilateral hexagonal steel column with round holes

14‧‧‧Tight end nut with three grooves

142‧‧‧Stainless steel pipe sleeve with thread and three grooves on the inner wall

141‧‧‧ Equilateral hexagonal steel column with round holes

15‧‧‧ locked object

151‧‧‧ locked object

152‧‧‧ Locked object

161‧‧‧ Gasket

162‧‧‧Gasket

17‧‧‧Spring washer

18‧‧‧ latch

32‧‧‧Screws with thread and single groove on the outer wall at both ends

321‧‧‧round steel rod

322‧‧‧Outer wall stainless steel pipe sleeve with thread and single groove

323‧‧‧Outer end stainless steel pipe sleeve with thread and single groove on the outer wall

320‧‧‧Outer wall stainless steel pipe sleeve without thread and single groove

3221‧‧‧ Groove at the end of the screw

3231‧‧‧End groove of screw

381‧‧‧Head end latch

382‧‧‧End latch

Figure 1-1 A perspective view of the structure of a fully latched stainless steel spiral pair of environmentally friendly screws

Figure 1-2 The perspective view of the screw structure with screw thread and single groove on the outer wall

Figure 1-3 The perspective view of the head nut structure

Figure 1-4 The perspective view of the structure of the three-groove end screw nut

Figure 2 Cross-sectional view of the structure of an environmentally friendly screw with full latch stainless steel screw pair

Figure 3-1 Cross-sectional view of the structure of an environmentally friendly screw with full latch stainless steel screw pairs at both ends

Figure 3-2 Perspective view of a screw structure with threads and single grooves on the outer walls of both ends

Figure 4 Perspective view of a stainless steel pipe socket with a thread and single groove on the outer wall

Figure 5 A perspective view of the basic structure of a screw with a single-end full latch stainless steel screw pair

Example: An environmentally friendly screw structure with a full latch stainless steel spiral pair is an environmentally friendly screw structure with a full latch stainless steel spiral pair at both ends

This embodiment illustrates an environmentally friendly screw structure with stainless steel spiral pairs with full latches at both ends. Figure 3-1 is a sectional view of an environmentally friendly screw structure with stainless steel spiral pairs with full latches at both ends. Figure 3-2 shows the ends The perspective view of the screw structure with screw thread and single groove on the outer wall. The structure shown in Figure 3-1 includes the following components: 32 is a screw with a thread and a single groove on both ends of the outer wall, 13 is a head nut, 14 is a three-groove end screw nut, and 151 is a locked object , 152 is the object to be locked, 161 is the washer, 162 is the washer, 17 is the spring washer, 381 is the head end latch, 382 is the tail end latch and other components.

An environmentally friendly screw structure of a stainless steel screw pair with full latches at both ends of the embodiment of the present invention, wherein Figure 3-2 is a perspective view of a screw structure with threads and single grooves on the outer walls of both ends. The grooved screw 32 is formed by inserting a round steel column rod 321 at each end into a threaded and single-groove head stainless steel sleeve 322 on the outer wall and a threaded and single-groove stainless steel sleeve 323 on the outer wall. The middle section of the head end and the tail end is formed by welding the middle section stainless steel sleeve 320 with no thread on the outer wall and no single groove; the outer diameter of the head end of the round steel rod 321 is equal to the head end with the thread and single groove on the outer wall The inner diameter of the stainless steel sleeve 322 and the outer diameter of the tail end of the round steel rod 321 are equal to the above The inner diameter of the end stainless steel sleeve 323 with threads and single grooves on the wall, and the outer diameter of the middle section of the round steel rod 321 is equal to the inner diameter of the aforementioned middle section stainless steel sleeve 320 without threads and single grooves; The head end stainless steel pipe sleeve 322 with a thread and a single groove on the outer wall is a screw thread for rolling a screw out of the outer wall of a stainless steel pipe, and the screw head end groove 3221 is cut on the outer wall in a parallel axis direction; the screw head end groove The groove 3221 is called the screw head end groove 3221 at the head end portion of the screw 32 with threads and single grooves on the outer walls of the two ends; the tail end stainless steel pipe sleeve 323 with threads and single grooves on the outer wall is to roll the outer wall of a stainless steel pipe Thread the screw and cut the following screw tail groove 3231 in parallel on the outer wall along the axis direction; the screw tail groove 3231 has threads on the outer wall of the two ends and the single groove of the screw 32 The part is called the screw end groove 3231. The head nut 13 is shown in the perspective view of the head nut structure in Figure 1-3 above. It is made of a stainless steel pipe sleeve 132 with threads and a single groove on the inner wall, which is inserted into an equilateral hexagonal steel column with a round hole. 131 is composed of welding, the single groove of the stainless steel sleeve 132 with threads and single grooves on the inner wall is parallel to the axis of the head nut 13; the screw nut 14 at the end of the three grooves is as shown in FIG. 1 above -4 The three-groove end-end screw nut structure is shown in a three-dimensional view, which is composed of a stainless steel pipe sleeve 142 with a thread on the inner wall and three grooves, which is welded into an equilateral hexagonal steel column 141 with a round hole The three grooves of the stainless steel pipe sleeve 142 with threads and three grooves on the inner wall are respectively parallel to the end of the three grooves and the axis of the nut 14 is tightened and are parallel to the inner wall of the nut at an angle of 120 degrees Top; the first washer 161 is placed between the aforementioned head nut 13 and the locked object 151, the second washer 162 is placed between the locked object 152 and the spring washer 17; and the spring washer 17 It is placed between the second washer 162 and the rear end screw nut 14 of the three grooves; and the length of the head pin 381 is not less than that of the outer wall with threads and single groove The length of the groove 3221 at the head end of the screw and the length of the tail pin 382 are not less than the length of the groove 3231 at the end of the screw with a thread on the outer wall and a single groove.

The device first rotates the head end nut 13 into the head end portion of the screw 32 described above, and after the single groove in the head end nut is aligned with the screw head end groove 3221, the head end pin 381 is inserted to form a screw head end The screw pair that has been latched. It can fix the rear end tightening nut 34 for the three grooves to apply force from the end end rotation to fasten the locked object 151 and the locked object 152. According to the American RCSC (Research Council on Structural Connections) nut tightening standard, the end of the three grooves is tightened to tighten the nut 14 so that the spring washer 17 starts to be tightly connected, and then rotates 120±30 degrees, while achieving two items Function: The first function is to achieve the rotation to the expected tightening torque value, and the second function is to rotate one of the three grooves in the screw nut of the three grooves, until this groove is After forming the common groove at the tail groove 3231 of the quasi-screw, inserting the tail pin 382 into the common groove at the same time can achieve the formation of a fully latched stainless steel spiral pair structure at both ends. The two stainless steel screw pairs of the aforementioned stainless steel screw pair at the head end and the stainless steel screw pair at the tail end form a fully latched stainless steel screw pair, which can prevent the screw thread in the screw pair from being damaged due to corrosion and locking the tightening screw device to never reach The purpose of loosening.

The above-mentioned contents of the description and the embodiments of the present invention describe various details. The elements cited by the reference numbers can be regarded as the same or functionally similar elements, and it is intended to illustrate the main implementation characteristics of the examples in a very simplified graphical manner; therefore, This illustration is not intended to depict all the features of actual embodiments, nor is it intended to depict the relative sizes and numbers of the elements drawn. Therefore, the picture shown is not drawn to scale, It is an environmentally friendly screw structure made of a fully latched stainless steel spiral pair according to the structure of the present invention, and the variable structure of each element and its complete realization can be achieved by using a full latch type stainless steel spiral pair to prevent corrosion damage and lock the tightening screw device In order to draw the basic spirit of the components in the structure that never loosens. And it is only used as a representative of the full-latch type stainless steel screw pair to prevent rust damage and to lock the tightening screw device that will never loosen. It can be equivalent to various functions and applications. One of them is as shown in the perspective view of the screw structure with screw thread and single groove on the outer wall of Figure 1-2. The stainless steel pipe sleeve 122 with screw thread and single groove on the outer wall can also be shown in Figure 4. The notched stainless steel pipe sleeve 123 forms a screw structure with a thread on the outer wall and a single groove. The notched stainless steel pipe sleeve 123 with threads and single grooves on the outer wall can also be made of a square stainless steel sheet by rolling with a rolling machine (Rolling Machine) and cold rolling at the same time. Fig. 4 is a perspective view of a notched stainless steel pipe sleeve with a thread on the outer wall and a single groove. Furthermore, as shown in Fig. 3-2, a screw structure with screw threads and single grooves on both ends of the outer wall, a middle section stainless steel pipe sleeve 320 with no threads and no single groove on the outer wall, can also be composed of a waterproof coated pipe sleeve to form a component structure. Or according to cost requirements, the conventional screw with a bolt head is made into a screw structure with a single-end full-latch type stainless steel spiral pair shown in Figure 5 to prevent loosening function. Although it is an all-stainless steel bolt, it is not made of all-stainless steel The process started at Panyuan is less an environmentally friendly screw structure; but its progress is in preventing loosening. 5 is a perspective view of the basic structure of a screw with a single-end full-latch type stainless steel spiral pair. All of the above can be used as a supplement to the present invention for more precise application, so that in the environmentally friendly screw structure device of the full latch type stainless steel screw pair, the structure of each element can be completely realized to achieve the full latch type stainless steel screw pair To prevent corrosion damage and tighten the tightening screw device never loose the purpose of the device should be Use, more exciting and diverse.

Although this article is based on the example of an environmentally friendly screw structure with full latch stainless steel screw pairs at both ends, the variable structure of each element and its complete implementation can be achieved by using a full latch stainless steel screw pair to prevent rust damage and lock the tightening screw device The structure that never loosens the purpose; or an environmentally friendly screw structure with a fully latched stainless steel spiral pair as described in the specification. The change structure of each element and the like can be completely achieved. The fully latched stainless steel spiral pair is used to prevent corrosion and damage. The structure that locks the tightening screw device never loosens; but this is not intended to limit the invention only to the details shown in the drawings, because the invention can be implemented before being brought in any way without departing from the spirit of the invention Various modifications and structural changes and the application of existing knowledge to incorporate prior art ideas, and then apply the modifications of the present invention to various applications or other materials applied to the present invention, and therefore, such modifications should and are intended to be included in the accompanying patent application The equivalent meaning and scope of the scope.

12‧‧‧ Screw with screw thread and single groove on the outer wall

121‧‧‧round steel rod

122‧‧‧Outer wall stainless steel pipe sleeve with thread and single groove

1220‧‧‧Screw groove

1221‧‧‧ Groove at the end of the screw

1222‧‧‧End groove of screw

13‧‧‧Head nut

132‧‧‧ Stainless steel pipe sleeve with thread and single groove on the inner wall

131‧‧‧ Equilateral hexagonal steel column with round holes

14‧‧‧Tight end nut with three grooves

142‧‧‧Stainless steel pipe sleeve with thread and three grooves on the inner wall

141‧‧‧ Equilateral hexagonal steel column with round holes

15‧‧‧ locked object

151‧‧‧ locked object

152‧‧‧ Locked object

161‧‧‧ Gasket

162‧‧‧Gasket

17‧‧‧Spring washer

18‧‧‧ latch

Claims (10)

An environmentally friendly screw structure of a fully latched stainless steel spiral pair. The structure includes: a screw with a thread on the outer wall and a single groove. The screw is a circular steel rod inserted into the outer wall with a thread and a single groove. The stainless steel pipe sleeve of the groove is welded; and a circular steel rod, the outer diameter of which is equal to the inner diameter of a stainless steel pipe sleeve with a thread on the outer wall and a single groove; and a thread on the outer wall And single-groove stainless steel pipe sleeve. This one-slot stainless steel pipe sleeve with thread and outer groove is to screw the screw thread of the outer wall of a stainless steel pipe, and cut the following screw groove on the outer wall in parallel axis direction Groove; and a screw groove, the screw groove is called the screw head groove at the head end of the screw with a thread and single groove on the outer wall, and the screw with a screw and single groove on the outer wall The tail part is called the screw tail groove; and a head nut, this head nut is a stainless steel pipe sleeve with a thread on the inner wall and a single groove, sleeved into an equilateral hexagonal steel column with a round hole The inner groove is welded together. The single groove of the stainless steel pipe sleeve with a thread and a single groove on the inner wall is parallel to the axis of the nut at the head end; and a three-groove end is screwed to the nut, and the three-groove end is screwed. The end tightening nut is composed of a stainless steel pipe sleeve with a thread and three grooves on the inner wall, which is welded into an equilateral hexagonal steel column with a round hole. The stainless steel pipe sleeve with threads and three grooves on the inner wall is Three grooves, each of which is parallel to the end of the three grooves and the axis of the nut is tightened and parallel to each other on the inner wall of the nut at an angle of 120 degrees; and two objects to be locked; and Two gaskets, the first gasket is placed between the aforementioned head nut and the locked object, the second gasket is placed between the locked object and the following spring gasket; and one spring gasket, This spring washer is placed between the second washer and the tightening nut at the end of the aforementioned three grooves; and a tightening screw device composed of a bolt element, wherein the length of the bolt is not less than that of the outer wall with threads and single groove The length of the screw, and the device first rotates the head end nut into the aforementioned screw head end, and after the single groove in the head end nut is aligned with the groove at the head end of the screw, the bolt end Insert into the common groove formed by the single groove in the head end nut and the screw head end groove to form a latchable screw head end screw pair, and the head end nut is first inserted into the bolt to form a screw head The screw pair of the end latch can be fixed and then the end of the three grooves is tightened. The nut is rotated and applied by the end to tighten the two locked objects; and the end of the three grooves is used to tighten the screw. Tighten the two locked objects by the cap, so that the spring gasket starts to rotate and then rotate 120±30 degrees, and at the same time achieve two functions: its first function is to achieve the expected rotation torque to the expected tightening torque; its second function is After one of the three grooves in the screw nut of the three grooves is rotated to align with the groove of the screw end, the same plug is extended into the screw nut of the three grooves In the common groove after the groove of the screw end and the groove at the end of the screw are aligned, it simultaneously achieves the purpose of a full latch type stainless steel screw pair to prevent corrosion and damage and to lock the fastening screw device never loose. For example, an environmentally friendly screw structure with a fully latched stainless steel screw pair in item 1 of the patent scope, in which a stainless steel pipe sleeve with a thread on the outer wall and a single groove is a stainless steel with a thread on the outer wall and a single groove with a parallel groove cut Component junction Constructor. For example, an environmentally friendly screw structure with a fully latched stainless steel screw pair in item 1 of the patent scope, where a stainless steel pipe sleeve with a thread on the outer wall and a single groove is a single threaded outer wall at both ends with a thread and the middle outer wall is unthreaded. The component structure of the grooved stainless steel tube sleeve. For example, an environmentally friendly screw structure of a fully latched stainless steel screw pair in the first item of the patent scope. The head nut of the component in this device is a stainless steel nut with a thread on the inner wall and a single groove, in which there is a circle The equilateral hexagonal steel column of the hole is a stainless steel column. For example, an environmentally friendly screw structure of a full-latch stainless steel screw pair in item 1 of the patent application scope. In this device, the three-groove end screw nut of the component is a stainless steel nut with threads and three grooves on the inner wall. Among them, the equilateral hexagonal steel columns with round holes are stainless steel columns. An environmentally friendly screw structure with full latch type stainless steel spiral pairs at both ends is an environmentally friendly screw structure with full latch type stainless steel spiral pairs at both ends. The structure includes: a screw with threads and single grooves on the outer walls of both ends. A screw is a round steel column bar at the two ends of which is inserted into a stainless steel pipe sleeve with a threaded outer wall and a single groove at the end and a stainless steel pipe sleeve with a threaded outer wall and a single groove at the end The middle section between the end and the end is composed of a middle section stainless steel pipe sleeve with no thread and no single groove on the outer wall; and a round steel rod, the outer diameter of the round steel rod is equal to the following. The inner diameter of the stainless steel pipe sleeve at the end of the thread and single groove and the outer wall has a thread and single groove The inner diameter of the stainless steel sleeve at the end of the end, and the outer diameter of the middle section of the round steel rod is equal to the inner diameter of the middle section of the stainless steel pipe sleeve with no thread and no single groove on the outer wall; and a thread and single groove on the outer wall The head end stainless steel pipe sleeve, this one stainless steel pipe sleeve with thread and single groove on the outer wall is to screw the screw thread of the outer wall of a stainless steel pipe, and cut the following screw groove on the outer wall in the direction of the parallel axis; And a screw head end groove, the screw head end groove is called the screw head end groove at the head end portion of the screw with a thread and a single groove on the outer wall of the two ends; and a tail with a screw thread and a single groove on the outer wall End stainless steel pipe sleeve, this end stainless steel pipe sleeve with thread and single groove on the outer wall is to screw the screw thread of the outer wall of a stainless steel pipe, and the following screw end is cut in parallel on the outer wall along the axis direction Groove; and a screw tail groove, this screw tail groove has a thread on the outer wall of the two ends and a single groove of the tail end of the screw is called the screw tail groove; and an outer wall without thread and no single The middle section stainless steel pipe sleeve of the groove, the middle section stainless steel pipe sleeve with no thread on the outer wall and no single groove is a stainless steel pipe sleeve without screw thread and screw groove on the outer wall of the stainless steel pipe; and a head end nut, The head nut is composed of a stainless steel pipe sleeve with a thread on the inner wall and a single groove, which is welded into an equilateral hexagonal steel column with a round hole, and the stainless steel pipe with a thread and single groove on the inner wall The single groove of the sleeve is parallel to the axis of the head nut; and a three-groove end screw nut is made of stainless steel pipe with threads and three grooves on the inner wall. Set into an equilateral hexagon with round holes The steel column is welded. The three grooves of the stainless steel pipe sleeve with threads and three grooves on the inner wall are parallel to the end of the three grooves. The axis of the nut is tightened and are parallel to the main screw at an angle of 120 degrees. On the inner wall of the cap; and two locked objects; and two gaskets, the first gasket is placed between the aforementioned head nut and the locked object, and the second gasket is placed on the locked object and Between the following spring washers; and a spring washer placed between the second washer and the three-groove end screw nut; and a head end latch and a tail end latch element The tightening screw device is composed of a length of the head end bolt not less than the length of the screw head groove with a thread on the outer wall and a single groove, and a length of the tail end bolt not less than the length of the screw end groove with a thread on the outer wall and a single groove The length of the groove, and the device first rotates the head end nut into the aforementioned head end portion of the screw, and the single groove in the head end nut is aligned with the head end groove of the screw, then the head end head Insert the pin at the head end to form a screw pair that can be latched at the head end of the screw, which can be fixed and then the tail end of the three grooves is tightened. The nut is rotated and applied by the tail end to fasten the two locked objects; The end of the aforementioned three grooves tightens the nut to tighten the two locked objects, so that the spring gasket starts to close and then rotates 120±30 degrees, and at the same time achieves two functions: its first role is to achieve the initial rotation to the expected rotation Tightening torque value; and its second function is to rotate the tail of the three grooves and tighten one of the three grooves in the nut until it is aligned with the tail groove of the screw, and then insert the tail pin into the In the common groove aligned with one groove in the screw cap of the three grooves and the groove at the end of the screw, a fully latched stainless steel screw can be achieved at the same time The purpose of the rotary pair is to prevent rust damage and to lock the tightening screw device never loose. For example, an environmentally friendly screw structure with a fully latched stainless steel spiral pair in item 6 of the patent scope, in which the outer walls of both ends have threads and single-groove screws, this screw is a circular steel rod at both ends, each inserted into an outer wall The head end stainless steel pipe sleeve with thread and single groove and the tail end stainless steel pipe sleeve with thread and single groove on the outer wall, and the middle section of the screw is a waterproof coated pipe sleeve to constitute the component structure. For example, an environmentally friendly screw structure of a fully latched stainless steel screw pair in the 6th range of the patent application, in which the outer walls of both ends have threads and single grooved screws, the round steel rod of this screw is a round stainless steel rod component Constructor. For example, an environmentally friendly screw structure of a full-latch stainless steel screw pair in item 6 of the patent scope. The head nut of the component in this device is a stainless steel nut with a thread on the inner wall and a single groove, in which there is a circle The equilateral hexagonal steel column of the hole is a stainless steel column. For example, an environmentally-friendly screw structure of a full-latch stainless steel screw pair in item 6 of the patent scope. In this device, the three-groove end screw nut of the component is a stainless steel nut with threads and three grooves on the inner wall. Among them, the equilateral hexagonal steel columns with round holes are stainless steel columns.

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