CN214661343U

CN214661343U - Anti-disassembly bolt for high-speed rail equipment

Info

Publication number: CN214661343U
Application number: CN202022927211.3U
Authority: CN
Inventors: 陈娟
Original assignee: Shanghai Yirui Rail & Metro Engineering Technology Co ltd
Current assignee: Shanghai Keyirui Rail Transit Technology Co ltd
Priority date: 2020-12-09
Filing date: 2020-12-09
Publication date: 2021-11-09
Anticipated expiration: 2030-12-09

Abstract

The utility model discloses a high-speed railway is anti-disassembly bolt for equipment, including screw rod, spiral shell head, a side fixed surface of screw rod is provided with round platform shape equipment seat, a plurality of screens tooth's socket has evenly been seted up to the lateral surface of equipment seat, equipment seat is kept away from screw rod side surface middle part activity and is provided with the seat of connecing soon, circular transmission thread groove has been seted up at the side middle part of connecing the seat soon, equipment seat side fixed surface is provided with the expansion pipe to the screw rod, the expansion pipe is provided with the positioning lead screw through seting up the passageway activity with the screw rod inner wall middle part of screw rod junction, the positioning lead screw is located the fixed round platform shape that is provided with of side of the inside one end of expansion pipe and expands the position post, the spiral shell head is fixed to be set up and is keeping away from positioning lead screw side surface middle part at the position post. The utility model discloses utilize the position adjusting lead screw to drive and expand the position post and expand the expansion pipe in order to accomplish the operation of locking a position to the removal in the expansion pipe, adopt the dual structure to fix when satisfying the connection demand, anti-disassembly performance is strong, excellent in use effect.

Description

Anti-disassembly bolt for high-speed rail equipment

Technical Field

The utility model relates to a bolt technical field specifically is an anti-disassembly bolt for high-speed railway equipment.

Background

Bolt: mechanical parts, cylindrical threaded fasteners fitted with nuts. A fastener consisting of a head part and a screw (a cylinder with external threads) needs to be matched with a nut and is used for fastening and connecting two parts with through holes. This form of connection is known as a bolted connection. If the nut is unscrewed from the bolt, the two parts can be separated, so that the bolt connection belongs to detachable connection. According to the stress mode of connection: both plain and reamed. According to the shape of the head: hexagonal, round, square, countersunk, etc. With a hex head being the most common. A countersunk head is typically used where attachment is desired. The bolt that uses during current high-speed railway equipment is mostly hexagon bolt commonly used, receives high-speed railway operation vibration and safe actual user demand such as preventing tearing open, and present bolt reliability is not enough, and the practicality is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high-speed railway is anti-disassembly bolt for equipment to solve the problem among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high-speed railway is anti-disassembly bolt for equipment, includes screw rod, spiral shell head, one side fixed surface of screw rod is provided with round platform shape equipment seat, a plurality of screens tooth's socket has evenly been seted up to the lateral surface of equipment seat, equipment seat is kept away from screw rod side surface middle part and is provided with the seat of connecing soon through seting up the through-hole activity, the circular transmission thread groove has been seted up at the side middle part of connecing the seat soon, equipment seat side fixed surface is kept away from to the screw rod and is provided with the expansion pipe, the screw rod inner wall middle part of expansion pipe and screw rod junction is provided with the positioning lead screw through seting up the passageway activity, the positioning lead screw is located the fixed round platform shape that is provided with of side of the inside one end of expansion pipe and expands a post, the fixed setting of spiral shell head is being expanded a post and is kept away from positioning lead screw side surface middle part.

Preferably, the side section of the screw is of a T-shaped structure, and the assembling seat and the expansion pipe are respectively integrated with the screw into a whole by adopting a cutting process.

Preferably, the side of equipment seat is equipped with five screens tooth grooves, connect the seat soon for hexagonal internal thread structure.

Preferably, the screw rod is a hollow tube, and the position adjusting screw rod penetrates through one end of the screw rod, which is positioned in the screwing seat, and is meshed with the transmission screw groove.

Preferably, the position adjusting screw rod and the position expanding column are integrated into a whole by adopting a welding process, and the side surface of the position adjusting screw rod, which is far away from one end of the position expanding column, is provided with a limiting seat and is larger than the inner diameter of the transmission screw groove.

Preferably, the outer diameter of the screw head is larger than that of the expansion column and is integrated into a whole, and the maximum outer diameter of the expansion column is larger than the original inner diameter of the expansion pipe.

Compared with the prior art, the beneficial effects of the utility model are that:

1. keep away from the expansion pipe of equipment seat one side at the screw rod and run through the activity and be equipped with the positioning lead screw, the side that the positioning lead screw is located the inside one end of expansion pipe is equipped with expands the position post, utilizes the positioning lead screw to drive to expand the expansion pipe in order to accomplish the operation of locking a position to the removal expansion pipe in the expansion pipe that expands the position post, adopts the dual structure to fix when satisfying the connection demand, and anti-disassembly performance is strong, excellent in use effect.

2. Five screens tooth's socket have evenly been seted up in the side of equipment seat, utilize fastening equipment joints such as sleeve in the screens tooth's socket of equipment seat side and through rotating the equipment seat with the spiral shell head equipment in the fixed position of high-speed railway equipment, guarantee when satisfying the normal equipment demand of bolt and rotate reliably, the practicality is strong.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and 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 and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the present invention;

fig. 2 is a sectional view of the expanded structure of the present invention;

fig. 3 is a schematic view of a side surface structure of the screw of the present invention.

In the figure: 1. a screw; 2. a screw head; 3. assembling a seat; 4. a blocking tooth groove; 5. a screwing seat; 6. a transmission screw groove; 7. an expansion tube; 8. adjusting a position screw rod; 9. expanding the position column; 10. a limiting seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1, fig. 2, and fig. 3, in an embodiment of the present invention, an anti-disassembly bolt for high-speed rail equipment includes a screw rod 1 and a screw head 2, a truncated cone-shaped assembling seat 3 is fixedly disposed on a surface of one side of the screw rod 1, a plurality of clamping tooth grooves 4 are uniformly disposed on an outer side surface of the assembling seat 3, a screwing seat 5 is movably disposed in a middle portion of a surface of one side of the assembling seat 3, which is away from the screw rod 1, of the assembling seat 3, a circular transmission screw groove 6 is disposed in a middle portion of a side surface of the screwing seat 5, an expansion pipe 7 is fixedly disposed on a surface of one side of the screw rod 1, which is away from the assembling seat 3, a positioning screw rod 8 is movably disposed in a middle portion of an inner wall of the screw rod 1, which is located at a connection portion between the expansion pipe 7 and the expansion pipe, a truncated cone-shaped expansion column 9 is fixedly disposed on a side surface of one end of the positioning screw rod 8, and the screw head 2 is fixedly disposed in a middle portion of a surface of one side of the expansion column 9, which is away from the positioning screw rod 8; the side section of the screw 1 is of a T-shaped structure, and the assembling seat 3 and the expansion pipe 7 are respectively integrated with the screw 1 into a whole by adopting a cutting process, so that the structural performance is ensured; the side surface of the assembling seat 3 is provided with five clamping tooth grooves 4, and the screwing seat 5 is of a hexagonal internal thread structure, so that the wrench is ensured to be fixed and reliable in position during rotation; the screw rod 1 is a hollow pipe, and the position adjusting screw rod 8 penetrates through one end of the screw rod 1, which is positioned in the rotary connection seat 5, and is meshed with the transmission screw groove 6, so that the transmission connection is reliable when the position locking is adjusted; the position adjusting screw rod 8 and the position expanding column 9 are integrated into a whole by adopting a welding process, the side surface of one end of the position adjusting screw rod 8, which is far away from the position expanding column 9, is provided with a limiting seat 10 which is larger than the inner diameter of the transmission screw groove 6, so that the screw head 2 is prevented from being separated from the screw rod 1 due to over adjustment of the screwing seat 5; the outer diameter of the screw head 2 is larger than that of the expansion column 9 and is integrated into a whole, and the maximum outer diameter of the expansion column 9 is larger than the original inner diameter of the expansion pipe 7, so that the expansion operation requirement on the expansion pipe 7 during locking is met.

The utility model discloses a theory of operation and use flow: utilize fastening equipment joints such as sleeve to assemble in the screens tooth's socket 4 of 3 sides of seat and through rotating the fixed position of assembling the spiral shell head 2 at high-speed railway equipment, reuse allen key control connects seat 5 soon after fixed completion to rotate in order to shrink positioning lead screw 8 under the effect of transmission spiral shell groove 6, positioning lead screw 8 drives and expands a post 9 and remove in order to expand expansion pipe 7 and accomplish the operation of locking a position in expansion pipe 7, adopt the dual structure to fix when satisfying the connection demand, anti-disassembly performance is strong, excellent in use effect.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a high-speed railway is anti-disassembly bolt for equipment, includes screw rod (1), spiral shell head (2), its characterized in that: a round table-shaped assembling seat (3) is fixedly arranged on the surface of one side of the screw rod (1), a plurality of clamping tooth grooves (4) are uniformly arranged on the outer side surface of the assembling seat (3), the middle part of the surface of one side of the assembling seat (3) far away from the screw rod (1) is movably provided with a rotary connecting seat (5) through a through hole, a circular transmission screw groove (6) is arranged in the middle of the side surface of the rotary connection seat (5), an expansion pipe (7) is fixedly arranged on the surface of one side of the screw rod (1) far away from the assembly seat (3), a position adjusting screw rod (8) is movably arranged in the middle of the inner wall of the screw rod (1) at the joint of the expansion pipe (7) and the screw rod (1) through a channel, the side surface of one end of the position adjusting screw rod (8) positioned in the expansion pipe (7) is fixedly provided with a round table-shaped position expanding column (9), the screw head (2) is fixedly arranged in the middle of the surface of one side, away from the position adjusting screw rod (8), of the position expanding column (9).

2. The disassembly-preventing bolt for high-speed rail equipment according to claim 1, characterized in that: the side section of the screw rod (1) is of a T-shaped structure, and the assembling seat (3) and the expansion pipe (7) are respectively integrated with the screw rod (1) into a whole by adopting a cutting process.

3. The disassembly-preventing bolt for high-speed rail equipment according to claim 1, characterized in that: the side of equipment seat (3) is equipped with five screens tooth's socket (4), connect seat (5) for hexagonal internal thread structure soon.

4. The disassembly-preventing bolt for high-speed rail equipment according to claim 1, characterized in that: the screw rod (1) is a hollow pipe, and the position adjusting screw rod (8) penetrates through one end, located inside the rotary connection seat (5), of the screw rod (1) and is connected with the transmission screw groove (6) in a meshed mode.

5. The disassembly-preventing bolt for high-speed rail equipment according to claim 1, characterized in that: the position adjusting screw rod (8) and the position expanding column (9) are integrated into a whole by adopting a welding process, and the side surface of one end, far away from the position expanding column (9), of the position adjusting screw rod (8) is provided with a limiting seat (10) and is larger than the inner diameter of the transmission screw groove (6).

6. The disassembly-preventing bolt for high-speed rail equipment according to claim 1, characterized in that: the outer diameter of the screw head (2) is larger than that of the expansion column (9) and is integrated into a whole, and the maximum outer diameter of the expansion column (9) is larger than the original inner diameter of the expansion pipe (7).