CN219712000U - Torsional shear type high-strength bolt for steel structure - Google Patents

Abstract

The utility model relates to the technical field of bolts and provides a torsion shear type high-strength bolt for a steel structure, which comprises an outer side screw rod, wherein a screwing head is fixedly connected to the bottom of the outer side screw rod, fourth threads are formed in the outer side screw rod and the screwing head, a reinforcing screw rod is movably connected to the inner parts of the outer side screw rod and the screwing head, the reinforcing screw rod is matched with the fourth threads, and the reinforcing screw rod which can be filled is arranged in the outer side screw rod.

Description

Torsional shear type high-strength bolt for steel structure

Technical Field

The utility model relates to the technical field of nuts, in particular to a torsion shear type high-strength bolt for a steel structure.

Background

The steel structure torsional shear bolt is a high-strength bolt, is widely applied to various civil buildings and bridge road construction fields, and is widely used for pipeline installation and various hoisting machine tool installation due to good fastening performance.

The utility model discloses a torsional shear type high-strength bolt for a steel structure, which comprises a screw, wherein the top of the screw is provided with a bolt head, the bottom of the screw is provided with a wrench head, one end of the screw, which is close to the wrench head, is provided with threads, and one end of the screw, which is close to the bolt head, is provided with a groove; a cutting groove is arranged between the screw and the spanner head, the cutting groove is of a concave isosceles trapezoid structure, the cutting groove diameter of the cutting groove is 0.5mm-2mm, and the angle formed by two waists of the cutting groove is 50 degrees to 60 degrees. The bolt increases the cutting channel diameter size of the bolt product, so that the nut product in the connecting pair can enable the fastening shaft force value of the steel structure torsional shear bolt connecting pair to be qualified without a surface treatment process, the nut does not need to be used as a phosphating process, the fastening shaft force detection is qualified, one process is omitted, the cost is saved, the exchange period of customers can be shortened, and the economic benefit is improved.

However, the above-mentioned torsion shear type high strength bolt for a steel structure has a problem in that the torsion shear type high strength bolt for a steel structure does not have an additional high strength screw added to the inside thereof, and thus the overall strength of the bolt is easily made poor.

Disclosure of Invention

The utility model provides a torsion shear type high-strength bolt for a steel structure, which solves the problem that the whole strength of the bolt is poor because no additional high-strength screw is added in the torsion shear type high-strength bolt for the steel structure.

The technical scheme of the utility model is as follows: the utility model provides a steel construction is with turning round high strength bolt of cutting, includes outside screw rod, the bottom fixedly connected with of outside screw rod twists the solid, the outside screw rod has seted up the fourth screw thread with the inside of twisting the solid, outside screw rod and the inside swing joint who twists the solid have the reinforcing screw rod, reinforcing screw rod and fourth screw thread assorted.

Preferably, the outer side of the outer side screw rod is fixedly connected with a first thread.

Preferably, the top of outside screw rod fixedly connected with bolt head, the outside annular array of bolt head has seted up anti-skidding groove.

Preferably, a screwing groove is formed in the top of the bolt head, and an information mark is formed in the bottom of the screwing groove.

Preferably, the outside of outside screw rod is equipped with supporting nut, the second screw thread has been seted up at the middle part of supporting nut, second screw thread and first screw thread assorted, supporting nut passes through second screw thread threaded connection in the outside of outside screw rod.

Preferably, the outside of the outside screw rod is movably connected with a matched top disc.

Preferably, a screwing cap is arranged on the outer side of the screwing head, and a third thread is fixedly connected to the inner wall of the circular groove at the top of the screwing cap.

Preferably, the screwing cap is in threaded connection with the outer side of the screwing head through a third thread on the inner wall of the circular groove at the top of the screwing cap.

Technical effects and advantages of the utility model

1. According to the utility model, the reinforced screw rod which can be filled is arranged in the outer screw rod, and when the whole bolt is used, a worker can fill the reinforced screw rod into the outer screw rod along the outer screw rod and the fourth thread matched with the reinforced screw rod in the screwing head, so that the use strength of the whole bolt is increased by adding the reinforced screw rod with high strength into the outer screw rod.

2. According to the utility model, the screw-in head is arranged at the bottom of the outer screw, after the reinforcing screw is filled into the outer screw, a worker can take out the screw-in cap matched with the screw-in head, and screw-in is performed along the screw-in head through the third thread of the circular slotted inner wall at the top of the screw-in cap, so that the reinforcing screw filled into the outer screw is fixed.

Drawings

Fig. 1 is a schematic front view of the whole device structure of the present utility model.

FIG. 2 is a schematic top view of the overall device structure of the present utility model.

Fig. 3 is an exploded view of the outboard screw and mating nut and mating top disk configuration.

Fig. 4 is an exploded view of the outboard screw and reinforcing screw and screw cap structure.

Fig. 5 is an exploded view of the screw cap and reinforcing screw structure.

Fig. 6 is an enlarged view of area a of fig. 4.

The reference numerals are: 1. a bolt head; 2. an outer screw; 3. a first thread; 4. a matched screw cap; 5. a matched top plate; 6. screwing the cap; 7. an anti-skid groove; 8. twisting grooves; 9. an information label; 10. a second thread; 11. reinforcing the screw; 12. a third thread; 13. screwing the head; 14. and fourth threads.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described in the following in conjunction with the embodiments of the present utility model, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-6, the utility model provides a torsion shear type high strength bolt for a steel structure, which comprises an outer screw rod 2, wherein a screwing head 13 is fixedly connected to the bottom of the outer screw rod 2, fourth threads 14 are formed in the outer screw rod 2 and the screwing head 13, a reinforcing screw rod 11 is movably connected to the inner parts of the outer screw rod 2 and the screwing head 13, the reinforcing screw rod 11 is matched with the fourth threads 14, the reinforcing screw rod 11 which can be filled is arranged in the outer screw rod 2, and when the whole bolt is used, a worker can fill the reinforcing screw rod 11 into the outer screw rod 2 along the inner parts of the outer screw rod 2 and the screwing head 13 by the fourth threads 14 which are matched with the reinforcing screw rod 11.

Referring to fig. 1-6, the outside fixedly connected with first screw thread 3 of outside screw rod 2, the screw thread size of first screw thread 3 can be formulated according to specific service conditions in practice, the top fixedly connected with bolt head 1 of outside screw rod 2, anti-skidding groove 7 has been seted up to the outside annular array of bolt head 1, friction when increasing bolt head 1 and twist through having seted up anti-skidding groove 7 at anti-skidding groove 7's outside annular array, twist groove 8 has been seted up at the top of bolt head 1, information mark 9 has been seted up to the bottom of twist groove 8, the concrete size design of twist groove 8 should be consistent with the screwing tool of its adaptation, and the staff can mark the information through information mark 9 according to the concrete design size model of bolt.

Referring to fig. 1-6, the outside of the outside screw rod 2 is provided with a matched nut 4, the middle part of the matched nut 4 is provided with a second thread 10, the second thread 10 is matched with the first thread 3, the matched nut 4 is in threaded connection with the outside of the outside screw rod 2 through the second thread 10, the outside of the outside screw rod 2 is movably connected with a matched top plate 5, the matched nut 4 and the matched top plate 5 are both parts of bolts, a worker can select in actual use, the outside of the screwing head 13 is provided with a screwing cap 6, the top circular slotting inner wall of the screwing cap 6 is fixedly connected with a third thread 12, the screwing cap 6 is in threaded connection with the outside of the screwing head 13 through the third thread 12 of the top circular slotting inner wall of the screwing cap 6, the bottom of the outside screw rod 2 is provided with a screwing head 13, after the reinforcing screw rod 11 is filled into the inside of the outside screw rod 2, the worker can take out to screw the screwing cap 6 matched with the screwing head 13, and screw the reinforcing screw rod 11 filled inside the outside screw rod 2 is screwed along the screwing head 13 through the third thread 12 of the top circular slotting inner wall of the screwing cap 6.

The working principle of the utility model is as follows: before the installation work is carried out through the bolt, the staff can fill the reinforcing screw 11 into the inside of the outer screw 2 along the outer screw 2 and the fourth thread 14 matched with the reinforcing screw 11 in the screwing head 13, the design increases the overall use strength of the bolt by adding the reinforcing screw 11 with high strength into the inside of the outer screw 2, after the reinforcing screw 11 is filled into the inside of the outer screw 2, the staff can take out the screwing cap 6 matched with the screwing head 13, the third thread 12 of the circular grooved inner wall at the top of the screwing cap 6 is screwed in along the screwing head 13, thereby completing the fixing work of the reinforcing screw 11 filled into the inside of the outer screw 2, in particular, the top of the bolt head 1 is provided with the screwing groove 8, the bottom of the screwing groove 8 is provided with the information mark 9, the specific size design of the screwing groove 8 is consistent with the driving tool matched with the specific size of the bolt, and the staff can mark the information through the information mark 9 according to the specific design size of the bolt.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (8)

1. The utility model provides a high strength bolt is cut with turning round to steel construction, includes outside screw rod (2), its characterized in that, the bottom fixedly connected with of outside screw rod (2) is twisted and is fixed head (13), outside screw rod (2) and the inside of twisting and fixed head (13) have been seted up fourth screw thread (14), outside screw rod (2) and the inside swing joint who twists fixed head (13) have reinforcing screw rod (11), reinforcing screw rod (11) and fourth screw thread (14) assorted.

2. The torsional shear type high-strength bolt for steel structures according to claim 1, wherein the outer side of the outer side screw rod (2) is fixedly connected with a first thread (3).

3. The torsional shear type high-strength bolt for the steel structure according to claim 1, wherein the top of the outer side screw rod (2) is fixedly connected with a bolt head (1), and an anti-skid groove (7) is formed in an outer side annular array of the bolt head (1).

4. A high strength bolt for steel construction according to claim 3, characterized in that the top of the bolt head (1) is provided with a screw groove (8), the bottom of the screw groove (8) is provided with an information sign (9).

5. The torsional shear type high-strength bolt for steel structures according to claim 1, wherein a matched screw cap (4) is arranged on the outer side of the outer side screw rod (2), a second thread (10) is arranged in the middle of the matched screw cap (4), the second thread (10) is matched with the first thread (3), and the matched screw cap (4) is in threaded connection with the outer side of the outer side screw rod (2) through the second thread (10).

6. The torsional shear type high-strength bolt for steel structures according to claim 1, wherein the outer side of the outer side screw rod (2) is movably connected with a matched top disc (5).

7. The torsional shear type high-strength bolt for steel structures according to claim 1, wherein a screwing cap (6) is arranged on the outer side of the screwing head (13), and a third thread (12) is fixedly connected to the inner wall of a circular groove at the top of the screwing cap (6).

8. The torsional shear type high-strength bolt for steel structures according to claim 7, wherein the screwing cap (6) is screwed on the outer side of the screwing head (13) through a third thread (12) of the inner wall of the circular groove at the top of the screwing cap.