CN218670108U - Can dismantle and change from locking-type one-way bolt - Google Patents

Abstract

The utility model relates to an one-way bolt technical field provides a can dismantle to change from locking-type one-way bolt, including the shank of bolt, the shank of bolt overcoat is equipped with gasket and sleeve pipe, and integrated into one piece has the hexagon head after the shank of bolt head passes the gasket, and its afterbody has the conical head nut after passing the sleeve pipe, and the locating hole of circle forms mortise and tenon joint in the location tenon of sleeve pipe head and the gasket, and the crack of sleeve pipe afterbody forms mortise and tenon joint with the locking tenon that distributes on the conical head nut external conical surface to the sleeve pipe afterbody adopts conical surface cooperation with the conical head nut. When the detachable replaceable self-locking one-way bolt is installed and used, the bolt rod is screwed to ensure that the conical head nut gradually attacks the sleeve and expands to achieve the purpose of fastening; when the bolt needs to be replaced, the bolt rod is screwed to enable the conical head nut to be loosened, so that the bolt can be detached and replaced, the operation is convenient and fast, the application range is wide, the large-scale popularization and use of the fastener market are facilitated, and the practicability is high.

Description

Can dismantle and change from locking-type one-way bolt

Technical Field

The utility model relates to an one-way bolt technical field, concretely relates to can dismantle change from locking-type one-way bolt.

Background

The Chinese utility model with the application number of 201621179019.8 discloses a torsional shear type self-locking high-strength one-way bolt connection pair, which comprises a torsional shear type bolt rod, a sleeve, a nut, a flat washer and a spring washer; one end of the torsional shear type bolt rod is provided with a torsional shear groove, and the other end of the torsional shear type bolt rod is provided with a conical bottom; one end of the sleeve is provided with a slot; the maximum diameter of the tapered bottom is smaller than the outer diameter of the sleeve. When the bolt connecting pair is used, once the sleeve is fixed on the metal plate after being installed, the conical bottom of the bolt rod is abutted against the sleeve, so that the bolt connecting pair cannot be detached and replaced from the outside and is inconvenient to use; in addition, the bolt bar protrudes out of the steel structure, so that the bolt bar is not easy to hide, and the attractiveness of the surface of the steel structure is affected.

Therefore, the self-locking one-way bolt capable of being detached and replaced is provided.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a detachable replaceable self-locking one-way bolt, which makes up the defects of the prior art, and solves the problems that after the existing one-way bolt is installed, the tapered bottom of the bolt rod is in conflict with the sleeve, the bolt rod cannot be detached and replaced from the outside, and the use is inconvenient; in addition, the bolt bar protrudes out of the steel structure, so that the bolt bar is not easy to hide, and the technical problem of the attractive appearance of the surface of the steel structure is influenced.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

the utility model provides a can dismantle and change from locking-type one-way bolt which characterized in that: including the shank of bolt, the shank of bolt overcoat is equipped with gasket and sleeve pipe, integrated into one piece has the hexagon head after the shank of bolt passes the gasket, and threaded connection has the conical head nut after its afterbody passes the sleeve pipe, the locating tenon of sleeve pipe head forms tenon fourth of the twelve earthly branches with the locating hole of the interior circle of gasket, the crack of sleeve pipe afterbody forms tenon fourth of the twelve earthly branches with the locking tenon that distributes on the conical surface outside the conical head nut, and sleeve pipe afterbody and conical head nut adopt conical surface cooperation.

Preferably, the stop tenon is inserted into the slit of the tail part of the casing and slides along the extending direction of the slit.

Preferably, the positioning tenon is provided with a pair of positioning tenons which are respectively arranged at the radial two ends of the head part of the sleeve.

Preferably, the slot is provided with four slots which are respectively arranged at the tail part of the sleeve, and the stop tenon is provided with four slots, and the outer edge of the stop tenon is flush with the side wall of the conical tail part and the expansion sleeve.

Preferably, the inner side wall of the sleeve is provided with a chamfer of which one end extends to the tail end of the sleeve, and the chamfer is attached to the outer conical surface of the conical head nut.

(III) advantageous effects

The utility model provides a can dismantle and change from locking-type one-way bolt possesses following beneficial effect:

1. when the utility model is installed and used, the bolt rod is screwed to lead the cone head nut to gradually attack into the sleeve pipe to expand so as to achieve the fastening purpose; when the bolt needs to be replaced, the bolt rod is screwed to loosen the conical head nut, so that the bolt can be detached and replaced, and the operation is convenient and quick;

2. the positioning tenon at the head of the sleeve and the positioning hole at the inner circle of the gasket form tenon-and-mortise connection, the slot at the tail of the sleeve and the stop tenon distributed on the outer conical surface of the conical nut form tenon-and-mortise connection, and during installation, the gasket is fixed only by a wrench, so that the radial positions of the three can be fixed, and the expansion sleeve and the conical bolt rod are prevented from rotating;

3. the tail part of the bolt rod of the utility model protrudes in the same direction as the expansion end of the sleeve and is hidden inside the steel structure, and only the hexagonal head part of the bolt rod is left on the outer surface of the steel structure, so that the attractiveness of the outer surface of the steel structure is improved; and the projecting part outside the steel structure can be prevented from accidentally injuring the worker;

4. after the bolt rod is disassembled, only the sleeve can be scrapped as a vulnerable part, and other parts can be reused, so that the cost is saved;

5. the utility model discloses be not limited to high strength bolt, ordinary bolt, stainless steel bolt use, application scope is extensive, does benefit to the extensive using widely of fastener market, and the practicality is high.

Drawings

Fig. 1 is an exploded schematic view of the present invention;

fig. 2 is a perspective view of the present invention, wherein the sleeve tail is not expanded;

fig. 3 is a perspective view of the present invention, wherein the tail of the sleeve is expanded;

fig. 4 is a schematic cross-sectional view corresponding to fig. 2 of the present invention;

fig. 5 is a schematic cross-sectional view corresponding to fig. 3 of the present invention.

In the figure: a bolt shank 1; a hexagonal head 11; a gasket 2; a positioning hole 21; a sleeve 3; a positioning tenon 31; slotting 32; a cone head nut 4; an outer tapered surface 41; a stop tenon 42; a steel structure 5.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to the attached drawings 1-5, the detachable replaceable self-locking type one-way bolt comprises a bolt rod 1, wherein a gasket 2 and a sleeve 3 are sleeved outside the bolt rod 1, the head of the bolt rod 1 penetrates through the gasket 2 and then is integrally formed with a hexagon head 11, the tail of the bolt rod penetrates through the sleeve 3 and then is in threaded connection with a cone head nut 4, a positioning tenon 31 at the head of the sleeve 3 and a positioning hole 21 in the inner circle of the gasket 2 form mortise and tenon joint, a slit 32 at the tail of the sleeve 3 and a stop tenon 42 distributed on an outer conical surface 41 of the cone head nut 4 form mortise and tenon joint, and the stop tenon 42 is inserted into the slit 32 at the tail of the sleeve 3 and slides along the extending direction of the slit 32.

When the utility model is installed and used, the main body of the bolt rod 1 and the main body of the sleeve are arranged in the mounting hole of the steel structure 5, the hexagonal head 11 of the bolt rod 1 is arranged outside the steel structure 5, the tail part of the bolt rod 1 and the expansion end of the sleeve 3 are hidden inside the steel structure 5, the gasket 2 is fixed only by a wrench, the radial positions of the gasket 2, the sleeve 3 and the cone head nut 4 can be fixed, the expansion sleeve and the cone head bolt rod 1 are prevented from rotating, the bolt rod 1 is screwed, and the cone head nut 4 is gradually attacked into the sleeve 3 to expand to achieve the fastening purpose; when the bolt needs to be replaced, the bolt rod 1 is screwed to loosen the conical head nut 4, so that the bolt can be detached and replaced, and the operation is convenient and fast.

When the utility model is installed and used, only the hexagonal head 11 part of the bolt rod 1 is left on the outer surface of the steel structure 5, so that the beauty of the outer surface of the steel structure 5 can be improved; and the workers are prevented from being accidentally injured by the convex part on the outer side of the steel structure 5.

In this embodiment, the positioning tenon 31 is provided with a pair and is respectively arranged at the two radial ends of the head of the casing 3; the slot 32 is provided with four paths and is arranged at the tail part of the sleeve 3, and the stop tenon 42 is provided with four paths, and the outer edge of the stop tenon is flush with the side wall of the conical tail part and the expansion sleeve.

In this embodiment, sleeve pipe 3 afterbody and conical head nut 4 adopt conical surface cooperation, and is concrete, be provided with the scarf that one end extends to sleeve pipe 3 end on the inside wall of sleeve pipe 3, the scarf is laminated with conical head nut 4's outer conical surface 41. When the cone head nut 4 is screwed with the bolt rod 1 to tap the sleeve 3, the sleeve 3 expands along the inclined plane 2.3, the expansion movement is smooth, and the installation and the use are time-saving and labor-saving.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (5)

1. The utility model provides a can dismantle and change from locking-type one-way bolt which characterized in that: including the shank of bolt, the shank of bolt overcoat is equipped with gasket and sleeve pipe, integrated into one piece has the hexagon head after the shank of bolt passes the gasket, and threaded connection has the conical head nut after its afterbody passes the sleeve pipe, the locating tenon of sleeve pipe head forms tenon fourth of the twelve earthly branches with the locating hole of the interior circle of gasket, the crack of sleeve pipe afterbody forms tenon fourth of the twelve earthly branches with the locking tenon that distributes on the conical surface outside the conical head nut, and sleeve pipe afterbody and conical head nut adopt conical surface cooperation.

2. The self-locking one-way bolt capable of being disassembled and replaced according to claim 1, is characterized in that: the stop tenon is inserted into the slot at the tail part of the sleeve and slides along the slot.

3. The self-locking one-way bolt capable of being disassembled and replaced according to claim 1, is characterized in that: the positioning tenon is provided with a pair of positioning tenons which are respectively arranged at the two radial ends of the head part of the sleeve.

4. The self-locking one-way bolt capable of being disassembled and replaced according to claim 1, is characterized in that: the slot is provided with four slots which are respectively arranged at the tail part of the sleeve, and the stop tenon is provided with four slots, and the outer edge of the stop tenon is flush with the side walls of the conical tail part and the expansion sleeve.

5. The self-locking one-way bolt capable of being disassembled and replaced according to claim 1, is characterized in that: be provided with the scarf that one end extends to the sleeve pipe end on the sheathed tube inside wall, the outer conical surface laminating of scarf and conical head nut.

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