CN213054639U - Blade bolt fastener - Google Patents

Abstract

The invention provides a blade bolt fastener, which comprises a connector and a transition head, wherein the connector comprises a connecting section and a driving section, an internal thread structure is arranged on the inner wall of the connecting section, an inner ring groove is arranged on the part, close to the connecting section, of the inner wall of the driving section, two cartridge grooves are symmetrically arranged on the inner wall of the driving section along the axial direction, and the cartridge grooves are communicated with the inner ring groove; the lower end of the transition head is symmetrically provided with side wings, the driving section is symmetrically provided with grooves, the transition head is provided with positioning holes along the radial direction corresponding to the grooves, and the side wings are matched with the inner ring groove after a positioning piece is inserted into the positioning holes; and an inner hexagonal structure or an inner square structure is arranged on the end face of one end of the transition head, which extends out of the connector. The screw rod structure is reasonable in structural design, can be conveniently screwed on the tail end of the screw rod of the bolt, is convenient for screwing operation, can be operated by hands, and is convenient to overhaul and maintain, wide in application range and good in using effect.

Description

Blade bolt fastener

Technical Field

The invention belongs to the technical field of wind power equipment installation, and particularly relates to a blade bolt fastener.

Background

The fastening bolt is one of mechanical parts, is fastened by a bolt, belongs to a detachable connection structure, generally comprises a head part and a screw rod, is matched with a nut and is used for fastening and connecting two parts with through holes, the connection form is called bolt connection, the fastening of the bolt is realized by screwing the nut, and the disassembly of the parts can be realized by screwing the nut down from the bolt. However, in the prior art, the bolt connection structure applied to the wind power equipment may loosen the nut as the fastener, and thus, regular maintenance and repair are required. Conventional maintenance operation need use instruments such as spanner, because bolt model specification is different, when the high altitude is overhauld and is maintained, need carry a large amount of instruments, not only the operation is inconvenient, and has certain safe risk.

Disclosure of Invention

In view of the above, the present invention provides a blade bolt fastener, which aims to overcome the defects in the prior art.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

a blade bolt fastener comprises a connector and a transition head, wherein the connector comprises a connecting section and a driving section, an internal thread structure is arranged on the inner wall of the connecting section, an inner ring groove is arranged on the part, close to the connecting section, of the inner wall of the driving section, two cartridge grooves are symmetrically arranged on the inner wall of the driving section along the axial direction, and the cartridge grooves are communicated with the inner ring groove; the lower end of the transition head is symmetrically provided with side wings, the driving section is symmetrically provided with grooves, the transition head is provided with positioning holes along the radial direction corresponding to the grooves, and the side wings are matched with the inner ring groove after a positioning piece is inserted into the positioning holes; and an inner hexagonal structure or an inner square structure is arranged on the end face of one end of the transition head, which extends out of the connector.

Further, the locating piece includes the cooperation section with locating hole complex, is equipped with the installation section at cooperation section both ends, and the installation section external diameter is less than cooperation section external diameter, is connected with the trigger on the installation section.

Further, the tail end of the mounting section is provided with an external thread structure, and the wrench handle is provided with a thread connecting structure matched with the external thread structure on the mounting section.

Furthermore, the installation sections at the two ends of the positioning piece respectively extend out of the connectors.

Furthermore, a transition section is arranged between the connecting section and the driving section, and the inner diameter of the transition section is larger than that of the connecting section.

Further, the inner diameter of the transition section is smaller than that of the inner ring groove.

Compared with the prior art, the invention has the following advantages:

the nut connecting structure is reasonable in structural design, can be conveniently screwed at the tail end of a screw of a bolt, the connector is used as a nut, and the transition head fixed on the connector is used for screwing operation, so that the bolt is very convenient to fasten. Later stage overhauls and maintains also more convenient, need not use tools even, with the help of the bare-handed operation of the trigger at setting element both ends, the range of application is wide, excellent in use effect.

In addition, the fastener can also be used as a connecting transition structure between parts, and is very convenient to connect and disassemble.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. In the drawings:

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

FIG. 2 is a schematic view of FIG. 1 with the trigger removed;

FIG. 3 is a schematic view of a positioning member according to an embodiment of the present invention;

FIG. 4 is a schematic view of a connector according to an embodiment of the present invention;

FIG. 5 is a top view of FIG. 4;

FIG. 6 is a schematic perspective view of the present invention;

FIG. 7 is a schematic perspective view of a connector according to an embodiment of the present invention;

fig. 8 is a schematic perspective view of a transition head in an embodiment of the present invention.

Description of reference numerals:

1-a connector; 2-a transition head; 3-a connecting segment; 4-a drive section; 5-internal thread structure; 6-inner ring groove; 7-inserting grooves; 8-flank; 9-a groove; 10-positioning holes; 11-inner square structure; 12-a mating segment; 13-a mounting section; 14-a trigger; 15-external thread connecting structure; 16-a positioning element; 17-transition section.

Detailed Description

It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.

In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.

The invention will be described in detail with reference to the following embodiments with reference to the attached drawings.

A blade bolt fastener comprises a connector 1 and a transition head 2, wherein the connector comprises a connecting section 3 and a driving section 4, an internal thread structure 5 is arranged on the inner wall of the connecting section, an inner annular groove 6 is arranged on the part, close to the connecting section, of the inner wall of the driving section, two insertion grooves 7 are symmetrically arranged on the inner wall of the driving section along the axial direction, and the insertion grooves are communicated with the inner annular groove;

the lower end of the transition head is symmetrically provided with side wings 8, the driving section is symmetrically provided with grooves 9, the grooves are hollow structures, it is pointed out that the grooves are generally larger than the positioning holes, and the grooves can be designed into arc-shaped grooves along the circumferential direction of the connector, so that the positioning part 16 can be conveniently inserted into the positioning holes. The transition head corresponds the recess and radially is equipped with locating hole 10, utilizes setting element cartridge to go into the locating hole after, flank and interior annular groove cooperation, can be convenient insert the setting element into the locating hole through the recess on the drive section, cross and be equipped with interior hexagonal structure or interior cubic structure 11 on the terminal surface of the one end that the transition head stretches out the connector outward, the hexagonal structure or interior cubic structure in the design have further expanded the mode of twisting the operation, can be with the help of the convenient regulation connector of twisting of assorted spanner instrument, make the connector fix at the bolt end.

It should be noted that the above-mentioned insertion groove is for the convenience of inserting the flank part until the flank part is assembled into the inner ring groove, when the flank of the transition head is inserted into the inner ring groove, the transition head is properly screwed, so that the positioning hole is exposed at the groove after the transition head rotates a certain angle, and after the positioning piece is inserted, the transition head is rotated to form a limit, at this time, the flank is matched with the side wall of the inner ring groove and cannot be disengaged, and the transition head and the connector form a connection structure.

The positioning piece comprises a matching section 12 matched with the positioning hole, mounting sections 13 are arranged at two ends of the matching section, the outer diameter of each mounting section is smaller than that of the matching section, and a trigger 14 is connected to each mounting section. The wrench handles at the two ends can conveniently screw the fastener, so that the connector is screwed at the tail end of the screw part of the bolt. When overhauing and maintaining, need not extra instrument, can fasten the connector through the trigger, avoid not hard up, it is very convenient. The staff can fasten the operation with the help of a lesson sleeve, and is concrete, and the staff inserts sleeve one end on the spanner, utilizes the sleeve as the stress application pole, can be convenient carry on the operation of revolving soon of connector, labour saving and time saving.

In an alternative embodiment, the male connection 15 is provided on the part of the transition piece that protrudes beyond the connection head, i.e. on the side of the connection head, it is fastened to the end of the shank of the bolt, and on the transition piece, another part with a female connection can be connected. The fastener can be used as a fastener of a bolt (namely a nut when the bolt is fixed), and also can be used as an intermediate transition structure between parts to play a role in connecting parts on the other side. When the device is disassembled, only the positioning piece needs to be pulled out, so that the device is very convenient, and can be well applied even in a narrow space.

Usually, an external thread structure 13 is arranged at the tail end of the mounting section, and a thread connecting structure matched with the external thread structure on the mounting section is arranged on the trigger. The installation sections at the two ends of the positioning piece are extended out of the surface of the connector (namely extended out of the groove), so that the spanner is convenient to connect.

In an optional embodiment, a transition section 17 is arranged between the connecting section and the driving section, the inner diameter of the transition section is larger than that of the connecting section, and the inner diameter of the transition section is smaller than that of the inner ring groove.

The nut connecting structure is reasonable in structural design, can be conveniently screwed at the tail end of a screw of a bolt, the connector is used as a nut, and the transition head fixed on the connector is used for screwing operation, so that the bolt is very convenient to fasten. Later stage overhauls and maintains also more conveniently, need not use tools even, with the help of the bare-handed spanner at setting element both ends can operate, and especially during high altitude construction, the staff need not to carry a large amount of instruments, only need carry a stress beam can carry out the fastening of all kinds of bolts, consequently, this binding range of application is wide, excellent in use effect. The fastener can also be used as a connecting transition structure between parts.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, so that any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present invention, should be included in the scope of the present invention.

Claims (6)

1. A blade bolt fastener is characterized in that: the connector comprises a connecting head and a transition head, wherein the connecting head comprises a connecting section and a driving section, an internal thread structure is arranged on the inner wall of the connecting section, an inner ring groove is arranged on the part, close to the connecting section, of the inner wall of the driving section, two cartridge grooves are symmetrically arranged on the inner wall of the driving section along the axial direction, and the cartridge grooves are communicated with the inner ring groove; the lower end of the transition head is symmetrically provided with side wings, the driving section is symmetrically provided with grooves, the transition head is provided with positioning holes along the radial direction corresponding to the grooves, and the side wings are matched with the inner ring groove after a positioning piece is inserted into the positioning holes; and an inner hexagonal structure or an inner square structure is arranged on the end face of one end of the transition head, which extends out of the connector.

2. A blade bolt fastener according to claim 1, wherein: the locating piece comprises a matching section matched with the locating hole, mounting sections are arranged at two ends of the matching section, the outer diameter of each mounting section is smaller than that of the matching section, and a trigger is connected to each mounting section.

3. A blade bolt fastener according to claim 2, wherein: the tail end of the mounting section is provided with an external thread structure, and the wrench handle is provided with a thread connecting structure matched with the external thread structure on the mounting section.

4. A blade bolt fastener according to claim 1, wherein: the installation sections at the two ends of the positioning piece respectively extend out of the connectors.

5. A blade bolt fastener according to claim 1, wherein: a transition section is arranged between the connecting section and the driving section, and the inner diameter of the transition section is larger than that of the connecting section.

6. The blade bolt fastener according to claim 5, wherein: the inner diameter of the transition section is smaller than that of the inner ring groove.

Images