CN113847322B

CN113847322B - Hexagonal head bolt

Info

Publication number: CN113847322B
Application number: CN202111018091.8A
Authority: CN
Inventors: 徐勇; 张建东; 侯建良; 徐奇军; 张仕益; 杨安意
Original assignee: Ningbo Ningli High Strength Fastener Co ltd
Current assignee: Ningbo Ningli High Strength Fastener Co ltd
Priority date: 2021-09-01
Filing date: 2021-09-01
Publication date: 2023-04-25
Anticipated expiration: 2041-09-01
Also published as: CN113847322A

Abstract

The invention discloses a hexagon bolt, which comprises a hexagon head part and a screw rod, wherein the screw rod is connected to the hexagon head part, the upper end of the hexagon head part is provided with a ranging dial plate, a dial plate linkage assembly is arranged in the hexagon head part, the lower end of the hexagon head part is slidably connected with two thimble, the two thimble are symmetrically arranged by taking the screw rod as a center, the thimble is linked with the dial plate linkage assembly, and the dial plate linkage assembly is linked with the ranging dial plate.

Description

Hexagonal head bolt

Technical Field

The invention relates to the technical field of bolts, in particular to a hexagon head bolt.

Background

The hexagonal head bolt is widely used in boilers, railways, highway bridges, industrial plants and the like, the conventional large-sized hexagonal head bolt has to achieve a specified pretightening force during assembly construction, a worker cannot know when the bolt rotates to a corresponding position by using a special electric tool during construction, whether the bolt is twisted or not, if the bolt does not rotate to the corresponding position and needs to be repeatedly screwed down, if the bolt is twisted down and needs to be reinstalled, and if the unevenness degree of a fastened part (such as a plate) is large, the bolt is difficult to find that some earlier screwed bolts are under-screwed after all the assembly is completed.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a hexagon head bolt for solving the problems in the prior art.

In order to solve the technical problems, the invention is solved by the following technical scheme:

the utility model provides a hexagon head bolt, includes hexagon head portion and screw rod, the screw rod is connected in the hexagon head portion, hexagon head portion upper end is equipped with the range finding dial plate, be equipped with dial plate linkage subassembly in the hexagon head portion, hexagon head lower extreme slip has two thimble, two the thimble uses the screw rod to set up as central symmetry, the thimble links with dial plate linkage subassembly mutually, dial plate linkage subassembly links with the range finding dial plate mutually.

Preferably, the dial plate linkage assembly comprises two groups of transmission assemblies, a first gear assembly and a second gear assembly, wherein the two groups of transmission assemblies are symmetrically arranged, the two groups of transmission assemblies are respectively linked with the first gear assembly and the second gear assembly, the transmission assemblies comprise a shaft sleeve and a transmission rod, the shaft sleeve is rotationally connected in a hexagonal head part, a sliding groove is formed in the shaft sleeve, the sliding groove is rotationally connected with a thimble, the thimble can move up and down in the sliding groove to drive the shaft sleeve to rotate, and one end of the transmission rod is linked with the shaft sleeve.

Preferably, the first gear assembly comprises a first gear and a first gear shaft, the first gear shaft is rotationally connected in the hexagonal head, the first gear is connected to the first gear shaft, the second gear assembly comprises a second gear and a second gear shaft, the second gear shaft is rotationally connected in the hexagonal head, the second gear is connected to the second gear shaft, and the two transmission rods are respectively linked with the first gear shaft and the second gear shaft.

Preferably, the distance measuring dial plate comprises a dial surface and a pointer rotating assembly, numbers are carved on the dial surface, the pointer rotating assembly comprises a first pointer, a second pointer, a first rotating shaft, a second rotating shaft, a third gear and a fourth gear, the first pointer and the second pointer are located above the dial surface, the first pointer is connected with the first rotating shaft, the first rotating shaft is connected with the third gear, the third gear is meshed with the first gear, the second pointer is connected with the second rotating shaft, the second rotating shaft is connected with the fourth gear, and the fourth gear is meshed with the second gear.

Preferably, the first rotating shaft is sleeved outside the second rotating shaft, the third gear is located above the fourth gear, and the lower end of the second rotating shaft penetrates through the third gear to be connected with the fourth gear.

Preferably, an internal thread is arranged in the sliding groove, and an external thread matched with the internal thread is arranged at the rear part of the thimble.

Preferably, the outer side of the shaft sleeve is linked with a transmission rod through a first bevel gear assembly, and the two transmission rods are respectively linked with a first gear shaft and a second gear shaft through a second bevel gear assembly.

Preferably, the first bevel gear assembly and the second bevel gear assembly are each comprised of two bevel gears.

The invention has the advantages that:

according to the invention, when the bolt is installed, the two ejector pins move upwards and drive the pointer to rotate, whether the bolt is screwed up or not can be known by watching the distance measuring dial, the two ejector pins are respectively positioned at the left side and the right side of the bolt, whether the bolt is screwed up or not can be judged by watching whether the rotation angles of the two pointers are the same or not, the design is reasonable, the market demand is met, and the bolt is suitable for popularization.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following discussion will discuss the embodiments or the drawings required in the description of the prior art, and it is obvious that the technical solutions described in connection with the drawings are only some embodiments of the present invention, and that other embodiments and drawings thereof can be obtained according to the embodiments shown in the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a cross-sectional view of the present invention;

FIG. 4 is a schematic view of the pointer rotating assembly of the present invention.

Detailed Description

The following description of the embodiments of the present invention will be made in detail and with reference to the accompanying drawings, wherein it is apparent that the embodiments described are only some, but not all embodiments of the present invention. All other embodiments, which can be made by a person of ordinary skill in the art without the need for inventive faculty, are within the scope of the invention, based on the embodiments described in the present invention.

As shown in fig. 1 to 4, a hexagon head bolt comprises a hexagon head 1 and a screw 2, wherein the screw 2 is connected with the hexagon head 1, the upper end of the hexagon head 1 is provided with a ranging dial, a dial linkage assembly is arranged in the hexagon head 1, two thimble 3 are slidingly connected with the lower end of the hexagon head 1, the two thimble 3 are symmetrically arranged by taking the screw 2 as the center, the thimble 3 is linked with the dial linkage assembly, the dial linkage assembly is linked with the ranging dial, the dial linkage assembly comprises two groups of transmission assemblies and a first gear assembly and a second gear assembly which are symmetrically arranged, the two groups of transmission assemblies are respectively linked with the first gear assembly and the second gear assembly, the transmission assemblies comprise a shaft sleeve 7 and a transmission rod 8, the shaft sleeve 7 is rotationally connected in the hexagon head 1, a chute is arranged in the shaft sleeve 7, the sliding chute is rotatably connected with the thimble 3, the thimble 3 can move up and down in the sliding chute to drive the shaft sleeve 7 to rotate, one end of the transmission rod 8 is linked with the shaft sleeve 7, the first gear assembly comprises a first gear 12 and a first gear shaft 11, the first gear shaft 11 is rotationally connected in the hexagonal head part 1, the first gear 12 is connected on the first gear shaft 11, the second gear assembly comprises a second gear 10 and a second gear shaft 9, the second gear shaft 9 is rotationally connected in the hexagonal head part 1, the second gear 10 is connected on the second gear shaft 9, the two transmission rods 8 are respectively linked with the first gear shaft 11 and the second gear shaft 9, the distance measuring dial comprises a dial face 4 and a pointer rotating assembly, numbers are carved on the dial face 4, the pointer rotating assembly comprises a first pointer 5, a second pointer 6, a first rotating shaft 15, a second pointer 15, the second rotating shaft 16, the third gear 13 and the fourth gear 14, the first pointer 5 and the second pointer 6 are all located above the disc surface 4, the first pointer 5 is connected with the first rotating shaft 15, the first rotating shaft 15 is connected with the third gear 13, the third gear 13 is meshed with the first gear 12, the second pointer 6 is connected with the second rotating shaft 16, the second rotating shaft 16 is connected with the fourth gear 14, the fourth gear 14 is meshed with the second gear 10, the first rotating shaft 15 is sleeved outside the second rotating shaft 16, the third gear 13 is located above the fourth gear 14, the lower end of the second rotating shaft 16 penetrates through the third gear 13 and is connected with the fourth gear 14, internal threads are formed in the sliding groove, external threads matched with the internal threads are formed in the rear portion of the thimble 3, the outer side of the shaft sleeve 7 is meshed with the transmission rod 8 through a first bevel gear assembly, the two transmission rods 8 are respectively meshed with the first bevel gear shaft assembly and the second bevel gear assembly 11 and the second bevel gear assembly, and both the second bevel gear assembly and the second bevel gear assembly are respectively formed by the second bevel gear assembly and the second bevel gear assembly.

The working principle of the invention is that a worker uses a tool to rotate the hexagonal head 1, so that the screw 2 is gradually screwed into a fastening part, when the screw 2 is screwed into one end for a distance, the thimble 3 is abutted against the outer wall of the fastening part, and the thimble 3 gradually slides upwards along with the continuous screwing of the screw 2, in the upward moving process of the thimble 3, the thimble 3 can drive the shaft sleeve 7 to rotate due to the matching of the external thread and the internal thread of the chute, the shaft sleeve 7 drives the transmission rod 8 to rotate through the first bevel gear, the two transmission rods 8 respectively drive the first gear shaft 11 and the second gear shaft 9 to rotate through the second bevel gear, so that the first gear 12 and the second gear 10 rotate, the first gear 12 and the second gear 10 respectively drive the third gear 13 and the fourth gear 14 to rotate, the third gear 13 and the fourth gear 14 respectively drive the first rotary shaft 15 and the second rotary shaft 16 to rotate, the first rotating shaft 15 and the second rotating shaft 16 drive the first pointer 5 and the second pointer 6 to rotate respectively, numbers are engraved on the disc surface 4, a worker can judge the screw-in length or the residual length of the bolt by observing the numbers pointed by the first pointer 5 and the second pointer 6, so that the bolt can be accurately rotated to the corresponding position, if the bolt is twisted, a certain included angle can be formed between the hexagonal head 1 and the outer surface of the fastening part, when the bolt is gradually screwed in, as the two thimble 3 are symmetrically arranged by taking the screw 2 as the center, the sliding distance of one thimble 3 is larger than that of the other thimble 3, and the worker can judge whether the screw 2 is twisted or not by observing whether the numbers pointed by the first pointer 5 and the second pointer 6 are the same or not, so that the screw is quite convenient and visual.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. Accordingly, the embodiments are to be considered in all respects as illustrative and not restrictive. The scope of the invention is indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. The utility model provides a hexagon head bolt, its characterized in that includes hexagon head (1) and screw rod (2), screw rod (2) are connected at hexagon head (1), hexagon head (1) upper end is equipped with the range finding dial plate, be equipped with dial plate linkage subassembly in hexagon head (1), hexagon head (1) lower extreme sliding connection has two thimble (3), two thimble (3) set up with screw rod (2) as central symmetry, thimble (3) are linked with dial plate linkage subassembly, dial plate linkage subassembly links with the range finding dial plate; the dial plate linkage assembly comprises two groups of symmetrically arranged transmission assemblies, a first gear assembly and a second gear assembly, the two groups of transmission assemblies are respectively linked with the first gear assembly and the second gear assembly, the transmission assemblies comprise a shaft sleeve (7) and a transmission rod (8), the shaft sleeve (7) is rotationally connected in a hexagonal head part (1), a sliding groove is formed in the shaft sleeve (7), the sliding groove is rotationally connected with the thimble (3), the thimble (3) moves up and down in the sliding groove to drive the shaft sleeve (7) to rotate, and one end of the transmission rod (8) is linked with the shaft sleeve (7); the first gear assembly comprises a first gear (12) and a first gear shaft (11), the first gear shaft (11) is rotationally connected in the hexagonal head (1), the first gear (12) is connected to the first gear shaft (11), the second gear assembly comprises a second gear (10) and a second gear shaft (9), the second gear shaft (9) is rotationally connected in the hexagonal head (1), the second gear (10) is connected to the second gear shaft (9), and the two transmission rods (8) are respectively linked with the first gear shaft (11) and the second gear shaft (9); the distance measuring dial comprises a dial surface (4) and a pointer rotating assembly, numbers are engraved on the dial surface (4), the pointer rotating assembly comprises a first pointer (5), a second pointer (6), a first rotating shaft (15), a second rotating shaft (16), a third gear (13) and a fourth gear (14), the first pointer (5) and the second pointer (6) are both positioned above the dial surface (4), the first pointer (5) is connected with the first rotating shaft (15), the first rotating shaft (15) is connected with the third gear (13), the third gear (13) is connected with the first gear (12) in a toothed manner, the second pointer (6) is connected with the second rotating shaft (16), the second rotating shaft (16) is connected with the fourth gear (14), and the fourth gear (14) is connected with the second gear (10) in a toothed manner. The first rotating shaft (15) is sleeved outside the second rotating shaft (16), the third gear (13) is positioned above the fourth gear (14), and the lower end of the second rotating shaft (16) passes through the third gear (13) to be connected with the fourth gear (14); an internal thread is arranged in the sliding groove, and an external thread matched with the internal thread is arranged at the rear part of the thimble (3); the outer side of the shaft sleeve (7) is linked with the transmission rods (8) through first bevel gear assemblies, and the two transmission rods (8) are respectively linked with the first gear shaft (11) and the second gear shaft (9) through second bevel gear assemblies.

2. The hex head bolt of claim 1 wherein the first and second bevel gear assemblies are each comprised of two bevel gears.