Torque-adjustable screw

Abstract

The utility model relates to the technical field of screws, in particular to a torque-adjustable screw. The adjustable torque screw rod comprises a fourth torque screw rod, a third torque screw rod, a second torque screw rod, a first torque screw rod and a screw cap are sequentially placed on the top of the fourth torque screw rod from bottom to top, a counter bore is formed in the top of the screw cap in a penetrating mode, and a first connecting groove is formed in the bottom of the screw cap. The first torque screw rod, the second torque screw rod, the third torque screw rod and the fourth torque screw rod are sequentially stacked and combined into the complete torque screw rod, and the complete torque screw rod and the nut are fixedly connected and combined into the torque bolt through the cross bolt. After the cross bolt is screwed off, one or more of the first torque screw, the second torque screw and the third torque screw can be taken down, so that the effect of quickly adjusting the length of the complete torque screw is achieved.

Description

Technical Field

[0001] This utility model relates to the field of screw technology, specifically an adjustable torque screw. Background Technology

[0002] Torque screws improve torque transmission efficiency by optimizing thread geometry. They are often combined with nuts to form torque bolts. Compared to traditional bolts or screws, torque bolts benefit from their advantages, providing better torque transmission and stable tightening force when used as fasteners. However, traditional torque screws have a fixed length, requiring the use of torque bolts of varying lengths for different applications. Forgetting to bring a matching bolt prevents operation, hindering the fulfillment of diverse needs and causing inconvenience. To address these issues, technological innovations are implemented based on existing torque screws. Utility Model Content

[0003] The purpose of this invention is to provide an adjustable torque screw to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an adjustable torque screw, comprising:

[0005] The fourth torque screw has a third torque screw, a second torque screw, a first torque screw, and a nut arranged sequentially from bottom to top on its top. The nut has a countersunk hole at its top and a first connecting groove at its bottom. The first, second, and third torque screws each have a set of second connecting grooves at their bottoms. The tops of the first, second, and third torque screws each have a set of first threaded holes. The fourth torque screw has a second threaded hole at its top. A cross bolt is installed in the countersunk hole and screwed into the first threaded hole, with its bottom screwed into the second threaded hole. A positioning component and a fixing component are installed on the outside of the cross bolt.

[0006] Preferably, the positioning component includes a first square connecting sleeve, a second square connecting sleeve, a third square connecting sleeve, and a fourth square connecting sleeve, which are respectively disposed on the top of the first torque screw, the second torque screw, the third torque screw, and the fourth torque screw.

[0007] Preferably, the first square connecting sleeve is inserted into the first connecting groove at the bottom of the nut, and the second, third, and fourth square connecting sleeves are respectively inserted into the second connecting grooves at the bottom of the first, second, and third torque screws. The first, second, third, and fourth square connecting sleeves are all fitted onto the outer ring of the stud of the cross bolt.

[0008] Preferably, the fixing component includes a spring, and a round-headed pin is provided on the outer side of the spring, with a magnet embedded in the round head portion of the round-headed pin.

[0009] Preferably, the inner wall of the countersunk hole is provided with two sets of mounting holes evenly spaced, and the outer side of the head of the cross bolt is provided with two sets of fixing holes evenly spaced.

[0010] Preferably, the spring is fixedly disposed in the mounting hole, the round-headed pin is slidably disposed in the mounting hole, the round head portion of the round-headed pin is inserted into the fixed hole, and the magnetic block is magnetically attracted in the fixed hole.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This invention involves stacking a first torque screw, a second torque screw, a third torque screw, and a fourth torque screw sequentially to form a complete torque screw. A cross bolt is then used to secure the complete torque screw to a nut, creating a torque bolt. When the length of the complete torque screw needs adjustment, simply unscrew the cross bolt to remove one or more of the first, second, and third torque screws, thus achieving a quick adjustment of the complete torque screw's length.

[0013] After the Phillips head bolt is tightened into the countersunk hole of the nut, the spring drives the round head pin to insert into the fixing hole of the Phillips head bolt. With the help of the magnetic block, the round head pin can improve the stability of the round head pin in the fixing hole by its own magnetic attraction. This stabilizes and limits the Phillips head bolt, preventing it from loosening and affecting the overall stability of the torque bolt, thereby improving the reliability of the entire torque bolt. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of an adjustable torque screw according to the present invention;

[0015] Figure 2 This is a front sectional view of an adjustable torque screw according to the present invention;

[0016] Figure 3 This utility model Figure 2 Enlarged view of part A;

[0017] Figure 4 This is a front sectional view of the present invention after length adjustment.

[0018] In the diagram: 1. Nut; 11. First torque screw; 12. Second torque screw; 13. Third torque screw; 14. Fourth torque screw; 15. Cross bolt; 111. First square connecting sleeve; 121. Second square connecting sleeve; 131. Third square connecting sleeve; 141. Fourth square connecting sleeve; 151. Spring; 152. Round head pin; 153. Magnetic block. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-4An adjustable torque screw includes a fourth torque screw 14. From bottom to top, a third torque screw 13, a second torque screw 12, a first torque screw 11, and a nut 1 are sequentially mounted on the top of the fourth torque screw 14. The top of the nut 1 has a countersunk hole, and the bottom of the nut 1 has a first connecting groove. The bottoms of the first torque screw 11, the second torque screw 12, and the third torque screw 13 each have a set of second connecting grooves. The tops of the first torque screw 11, the second torque screw 12, and the third torque screw 13 each have a set of first threaded holes. The top of the fourth torque screw 14 has a second threaded hole. A cross bolt 15 is rotatably disposed within the countersunk hole, and the cross bolt 15 is screwed into the first threaded hole. The bottom of the cross bolt 15... The cross bolt 15 is screwed into the second threaded hole. A positioning component and a fixing component are placed on the outside of the cross bolt 15. The positioning component includes a first square connecting sleeve 111, a second square connecting sleeve 121, a third square connecting sleeve 131, and a fourth square connecting sleeve 141. The first square connecting sleeve 111, the second square connecting sleeve 121, the third square connecting sleeve 131, and the fourth square connecting sleeve 141 are respectively fixed to the tops of the first torque screw 11, the second torque screw 12, the third torque screw 13, and the fourth torque screw 14. The first square connecting sleeve 111 is inserted into the first connecting groove at the bottom of the nut 1. The second square connecting sleeve 121, the third square connecting sleeve 131, and the fourth square connecting sleeve 141 are respectively inserted into the first torque screw 11, the second torque screw 12, the third torque screw 13, and the fourth torque screw 14. The second square connecting sleeve 121, the third square connecting sleeve 131, and the fourth square connecting sleeve 141 are inserted into the second connecting grooves at the bottom of the first torque screw 11, the second torque screw 12, and the third torque screw 13, respectively. This stacks the first torque screw 11, the second torque screw 12, the third torque screw 13, and the fourth torque screw 14 into a complete torque screw. Then, the first square connecting sleeve 111 is inserted into the first connecting groove at the bottom of the nut 1, and a cross bolt 15 is used to sequentially penetrate downwards through the nut 1, the first square connecting sleeve 111, the first torque screw 11, the second square connecting sleeve 121, the second torque screw 12, and the third square connecting sleeve 131. The third torque screw 13 and the fourth square connecting sleeve 141 are screwed into the second threaded hole of the fourth torque screw 14, thereby fixing the complete torque screw and nut 1 together to form a torque bolt. The first square connecting sleeve 111, the second square connecting sleeve 121, the third square connecting sleeve 131 and the fourth square connecting sleeve 141 are all fitted onto the outer ring of the stud of the cross bolt 15. When it is necessary to adjust the length of the complete torque screw, simply unscrew the cross bolt 15, and then move the nut 1 upward to remove it. In this way, one or more of the first torque screws 11, the second torque screw 12 and the third torque screw 13 can be removed, thereby achieving the effect of quickly adjusting the length of the complete torque screw. When the first torque screw 11 is removed...The second square connecting sleeve 121 can then be inserted into the first connecting groove at the bottom of the nut 1, and then secured with the cross bolt 15. Similarly, after the first torque screw 11 and the second torque screw 12 are removed, the third square connecting sleeve 131 can be inserted into the first connecting groove.

[0021] The fixing component includes a spring 151, with a round-headed pin 152 fixedly mounted on the outer side of the spring 151. A magnet 153 is embedded in the round head of the round-headed pin 152. Two sets of mounting holes are evenly formed on the inner sidewall of the countersunk hole. Two sets of fixing holes are evenly formed on the outer side of the head of the cross bolt 15. The spring 151 is fixedly mounted in the mounting holes, and the round headed pin 152 is slidably mounted in the mounting holes. The round head of the round headed pin 152 is inserted into the fixing holes, and the magnet 153 is magnetically attracted in the fixing holes. When the cross bolt 15 is tightened in the countersunk hole of the nut 1, the spring 151 drives the round headed pin 152 to insert into the fixing holes of the cross bolt 15, thereby limiting the cross bolt 15 and preventing it from loosening, which would affect the overall stability of the torque bolt. At the same time, the magnet 153 can improve the stability of the round headed pin 152 inserted into the fixing holes by its own magnetic attraction, thereby further improving the stability of the cross bolt 15 and thus further improving the overall stability of the torque bolt.

[0022] Working principle: The second square connecting sleeve 121, the third square connecting sleeve 131, and the fourth square connecting sleeve 141 are respectively inserted into the second connecting grooves at the bottom of the first torque screw 11, the second torque screw 12, and the third torque screw 13. This stacks the first torque screw 11, the second torque screw 12, the third torque screw 13, and the fourth torque screw 14 to form a complete torque screw. Then, the first square connecting sleeve 111 is inserted into the first connecting groove at the bottom of the nut 1. A cross bolt 15 is then used to sequentially thread through the nut 1, the first square connecting sleeve 111, the first torque screw 11, the second square connecting sleeve 121, the second torque screw 12, the third square connecting sleeve 131, the third torque screw 13, and the fourth square connecting sleeve 141 to the second threaded hole of the fourth torque screw 14, thus fixing the complete torque screw to the nut 1 to form a torque bolt. When the length of the complete torque screw needs to be adjusted, simply unscrew the cross bolt 15, and the nut 1 can be moved upwards. By removing the screws, one or more of the first torque screw 11, the second torque screw 12, and the third torque screw 13 can be removed, thus achieving a quick adjustment of the length of the complete torque screw. When the first torque screw 11 is removed, the second square connecting sleeve 121 can be inserted into the first connecting groove at the bottom of the nut 1, and then fixed with the cross bolt 15. Similarly, after the first torque screw 11 and the second torque screw 12 are removed, the third square connecting sleeve 131 can be inserted into the first connecting groove. After the cross bolt 15 is tightened in the countersunk hole of the nut 1, the round head pin 152 is driven by the spring 151 to insert into the fixing hole of the cross bolt 15, thereby limiting the cross bolt 15 and preventing it from loosening, which would affect the overall stability of the torque bolt. At the same time, the magnetic block 153 can improve the stability of the round head pin 152 inserted into the fixing hole by its own magnetic attraction, thereby further improving the stability of the cross bolt 15 and thus further improving the overall stability of the torque bolt.

Claims

1. An adjustable torque screw, characterized in that, include: The fourth torque screw (14) has a third torque screw (13), a second torque screw (12), a first torque screw (11), and a nut (1) arranged sequentially from bottom to top on its top. The top of the nut (1) has a countersunk hole, and the bottom of the nut (1) has a first connecting groove. The bottoms of the first torque screw (11), the second torque screw (12), and the third torque screw (13) each have a set of second connecting grooves. The tops of the first torque screw (11), the second torque screw (12), and the third torque screw (13) each have a set of first threaded holes, and the top of the fourth torque screw (14) has a second threaded hole. A cross bolt (15) is provided in the countersunk hole. The cross bolt (15) is screwed into the first threaded hole, and the bottom of the cross bolt (15) is screwed into the second threaded hole. A positioning component and a fixing component are placed on the outside of the cross bolt (15).

2. The adjustable torque screw according to claim 1, characterized in that: The positioning component includes a first square connecting sleeve (111), a second square connecting sleeve (121), a third square connecting sleeve (131), and a fourth square connecting sleeve (141), which are respectively disposed on the top of the first torque screw (11), the second torque screw (12), the third torque screw (13), and the fourth torque screw (14).

3. The adjustable torque screw according to claim 2, characterized in that: The first square connecting sleeve (111) is inserted into the first connecting groove at the bottom of the nut (1). The second square connecting sleeve (121), the third square connecting sleeve (131) and the fourth square connecting sleeve (141) are respectively inserted into the second connecting groove at the bottom of the first torque screw (11), the second torque screw (12) and the third torque screw (13). The first square connecting sleeve (111), the second square connecting sleeve (121), the third square connecting sleeve (131) and the fourth square connecting sleeve (141) are all fitted onto the outer ring of the stud of the cross bolt (15).

4. The adjustable torque screw according to claim 1, characterized in that: The fixing component includes a spring (151), and a round-headed pin (152) is provided on the outside of the spring (151). A magnet (153) is embedded in the round-headed part of the round-headed pin (152).

5. An adjustable torque screw according to claim 4, characterized in that: The inner wall of the countersunk hole is provided with two sets of mounting holes evenly spaced, and the outer side of the head of the cross bolt (15) is provided with two sets of fixing holes evenly spaced.

6. An adjustable torque screw according to claim 5, characterized in that: The spring (151) is fixedly installed in the mounting hole, the round-headed pin (152) is slidably installed in the mounting hole, the round head of the round-headed pin (152) is inserted into the fixed hole, and the magnetic block (153) is magnetically attracted in the fixed hole.

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