CN217976985U - Fastening bolt - Google Patents

Abstract

The utility model discloses a fastening bolt, including head, screw rod, stop gear, spacing lid, the terminal surface is equipped with coaxial screw rod under the head, and stop gear adaptability is established in the inside of head, screw rod, and the head up end is equipped with spacing lid, and spacing lid suits with stop gear. The utility model discloses can make the bolt installation back, the cardboard withstands the mounting hole inner wall, and the frictional force between reinforcing screw rod and the mounting hole makes the bolt installation firm, and is difficult not hard up.

Description

Fastening bolt

[ technical field ] A

The utility model relates to a technical field of bolt, especially a fastening bolt's technical field.

[ background ] A method for producing a semiconductor device

The bolt is a fastener consisting of a head part and a screw rod (a cylinder with external threads), needs to be matched with a nut for use, is used for fastening and connecting two parts with through holes, and is an anchoring assembly for anchoring a connected piece to a hardened concrete substrate. The traditional bolt is easy to loosen after being installed, and is not beneficial to fastening and connecting the joint.

[ Utility model ] content

The utility model aims at solving the problem in the prior art, providing a fastening bolt, can make its installation back installation firm, difficult not hard up.

In order to achieve the purpose, the utility model provides a fastening bolt, including head, screw rod, stop gear, spacing lid, the terminal surface is equipped with coaxial screw rod under the head, and stop gear adaptability is established in the inside of head, screw rod, and the head up end is equipped with spacing lid, and spacing lid suits with stop gear.

Preferably, the upper end face of the head is provided with a coaxial first blind hole, the bottom of the first blind hole is provided with a coaxial internal threaded blind hole, the hole wall of the internal threaded blind hole is provided with a first sliding groove which is axially arranged, the first sliding groove extends downwards from the bottom of the first blind hole, the inner wall of the first sliding groove is provided with a clamping groove, the bottom of the internal threaded blind hole is provided with a coaxial first round blind hole, the first round blind hole extends downwards to the inside of the screw, the hole wall of the first round blind hole is provided with a second sliding groove which is axially arranged, the second sliding groove extends downwards from the bottom of the internal threaded blind hole, the groove bottom of the second sliding groove is provided with a radially arranged limiting hole, the right end of the limiting hole inclines upwards, and the limiting hole is arranged on the screw.

Preferably, the limiting mechanism comprises a first circular plate, a composite twisting groove, a first circular ring, a first sliding block, an external threaded rod, a first circular rod and a clamping plate, the composite twisting groove is formed in the upper end face of the first circular plate, the first circular plate is coaxially arranged on the outer annular wall of the first circular plate, the first circular plate and the first circular ring are hinged, a hinge rotating shaft is the axis of the first circular plate, the first sliding block is arranged on the outer side wall of the first circular ring and is matched with the first sliding groove, the first sliding block presses the bottom of the first blind hole, the external threaded rod is coaxially arranged on the lower end face of the first circular plate, the external threaded rod is screwed on the upper end of the internal threaded blind hole, the first circular rod is coaxially arranged on the lower end face of the external threaded rod, the first circular rod is hinged with the external threaded rod, the hinge rotating shaft is the axis of the external threaded rod, the clamping plate is arranged on the side wall of the first circular rod, and the clamping plate is arranged in the limiting hole.

Preferably, the limiting cover is arranged in the first blind hole, the upper end face of the limiting cover is provided with a pull ring, the lower end face of the limiting cover is provided with a limiting rod, the side wall of the limiting rod is provided with a spherical clamp, the limiting rod is adaptively arranged in the first sliding groove, and the spherical clamp is adaptively clamped in the clamping groove.

The utility model has the advantages that: the utility model can make the clamping plate support the inner wall of the mounting hole after the bolt is mounted, and enhance the friction force between the screw rod and the mounting hole, so that the bolt is firmly mounted and is not easy to loose; the first sliding block is pressed at the bottom of the first blind hole, the position of the clamping plate can be limited, the clamping plate can firmly and stably prop against the inner wall of the mounting hole, and meanwhile, after the clamping plate props against the inner wall of the mounting hole, the screw cannot move upwards, the position of the first sliding block is also limited, the first sliding block and the clamping plate are mutually limited, and the stability and the firmness of the clamping plate are ensured; the gag lever post adaptability of spacing lid is established in first spout, can inject first slider position, prevents that first slider from rotating to get into in the first spout, and then ensures the stability of cardboard.

The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.

[ description of the drawings ]

Fig. 1 is a front view of a fastening bolt of the present invention;

fig. 2 is a schematic top view of a fastening bolt according to the present invention;

fig. 3 is a schematic view of the top view structure of the fastening bolt limiting cover of the present invention.

[ detailed description ] embodiments

Referring to fig. 1, fig. 2 and fig. 3, the utility model relates to a fastening bolt, including head 1, screw rod 2, stop gear 3, spacing lid 4, the terminal surface is equipped with coaxial screw rod 2 under the head 1, and stop gear 3 adaptability is established in the inside of head 1, screw rod 2, and 1 up end of head is equipped with spacing lid 4, and spacing lid 4 suits with stop gear 3.

Wherein, 1 up end of head is equipped with coaxial first blind hole 11, the hole bottom of first blind hole 11 is equipped with coaxial internal thread blind hole 12, internal thread blind hole 12 pore wall is equipped with the first spout 121 of axial setting, first spout 121 is from the hole bottom downwardly extending of first blind hole 11, first spout 121 inner wall is equipped with draw-in groove 122, internal thread blind hole 12 hole bottom is equipped with coaxial first circle blind hole 13, first circle blind hole 13 downwardly extending to the screw rod 2 inside, first circle blind hole 13 pore wall is equipped with the second spout 131 of axial setting, second spout 131 is from internal thread blind hole 12 hole bottom downwardly extending, the tank bottom of second spout 131 is equipped with radial spacing hole 21 that sets up, spacing hole 21 right-hand member tilt up, spacing hole 21 is established on screw rod 2.

The limiting mechanism 3 comprises a first circular plate 31, a composite screwing groove 310, a first circular ring 311, a first sliding block 312, an external threaded rod 32, a first circular rod 33 and a clamping plate 331, wherein the composite screwing groove 310 is arranged on the upper end face of the first circular plate 31, the first circular ring 311 which is coaxial is arranged on the outer annular wall of the first circular plate 31, the first circular plate 31 and the first circular ring 311 are hinged and the hinge rotating shaft is the axis of the first circular plate 31, the first sliding block 312 is arranged on the outer side wall of the first circular ring 311, the first sliding block 312 is adapted to the first sliding groove 121, the first sliding block 312 is pressed at the bottom of the first blind hole 11, the external threaded rod 32 which is coaxial is arranged on the lower end face of the first circular plate 31, the external threaded rod 32 is screwed on the upper end of the internal threaded blind hole 12, the first circular rod 33 which is coaxial is arranged on the lower end face of the external threaded rod 32, the first circular rod 33 is hinged and the external threaded rod 32 and the hinge rotating shaft is the axis of the external threaded rod 32, the clamping plate 331 is arranged on the side wall of the first circular rod 33, and the clamping plate 331 is arranged in the limiting hole 21.

Wherein, spacing lid 4 is established in first blind hole 11, and spacing lid 4 up end is equipped with pull ring 41, and spacing lid 4 bottom end face is equipped with gag lever post 42, and the gag lever post 42 lateral wall is equipped with globular card 421, and gag lever post 42 adaptability is established in first spout 121, and globular card 421 adaptability card is in draw-in groove 122.

The utility model discloses the working process:

in the working process of the fastening bolt, before the bolt is installed, the limiting cover 4 and the first blind hole 11 are in a separated state, the first sliding block 312 is arranged in the first sliding groove 121, and the clamping plate 331 retracts into the limiting hole 21;

a bolt mounting step;

the first step is as follows: screwing the screw rod 2 in place;

the second step is that: the external thread rod 32 is rotated through the composite screwing groove 310, the external thread rod 32 moves upwards, and the clamping plate 331 gradually extends to the outside along the limiting hole 21;

the third step: when the lower end surface of the first sliding block 312 is coplanar with the bottom of the first blind hole 11, the external threaded rod 32 stops rotating, at this time, the clamping plate 331 just props against the inner wall of the mounting hole, then the first circular ring 311 is rotated, and the first sliding block 312 is pressed on the bottom of the first blind hole 11;

the fourth step: the limit cover 4 is arranged in the first blind hole 11, the limit rod 42 is adaptively arranged in the first sliding groove 121, and the spherical card 421 is adaptively clamped in the clamping groove 122.

The utility model can make the clamping plate 331 support the inner wall of the mounting hole after the bolt is mounted, and enhance the friction force between the screw rod 2 and the mounting hole, so that the bolt is firmly mounted and is not easy to loose; after the first sliding block 312 is pressed at the bottom of the first blind hole 11, the position of the clamping plate 331 can be limited, so that the clamping plate 331 firmly and stably props against the inner wall of the mounting hole, meanwhile, after the clamping plate 331 props against the inner wall of the mounting hole, the screw rod 2 cannot move upwards, the position of the first sliding block 312 is also limited, the first sliding block 312 and the clamping plate 331 are mutually limited, and the stability and the firmness of the clamping plate 331 are ensured; the limiting rod 42 of the limiting cover 4 is adaptively arranged in the first sliding groove 121, so that the position of the first sliding block 312 can be limited, the first sliding block 312 is prevented from rotating to enter the first sliding groove 121, and the stability of the clamping plate 331 is further ensured.

The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.

Claims (4)

1. A fastening bolt is characterized in that: including head (1), screw rod (2), stop gear (3), spacing lid (4), the terminal surface is equipped with coaxial screw rod (2) under head (1), and stop gear (3) adaptability is established in the inside of head (1), screw rod (2), and head (1) up end is equipped with spacing lid (4), and spacing lid (4) suit with stop gear (3).

2. A fastening screw according to claim 1, wherein: the screw rod is characterized in that a first coaxial blind hole (11) is formed in the upper end face of the head (1), a coaxial internal thread blind hole (12) is formed in the hole bottom of the first blind hole (11), a first sliding groove (121) axially arranged is formed in the hole wall of the internal thread blind hole (12), the first sliding groove (121) extends downwards from the hole bottom of the first blind hole (11), a clamping groove (122) is formed in the inner wall of the first sliding groove (121), a first coaxial round blind hole (13) is formed in the hole bottom of the internal thread blind hole (12), the first round blind hole (13) extends downwards into the screw rod (2), a second sliding groove (131) axially arranged is formed in the hole wall of the first round blind hole (13), the second sliding groove (131) extends downwards from the hole bottom of the internal thread blind hole (12), a radially arranged limiting hole (21) is formed in the groove bottom of the second sliding groove (131), the right end of the limiting hole (21) inclines upwards, and the limiting hole (21) is formed in the screw rod (2).

3. A fastening screw as defined in claim 1, wherein: the limiting mechanism (3) comprises a first circular plate (31), a composite screwing groove (310), a first circular ring (311), a first sliding block (312), an external threaded rod (32), a first circular rod (33) and a clamping plate (331), the composite screwing groove (310) is arranged on the upper end face of the first circular plate (31), the first circular ring (311) which is coaxial is arranged on the outer annular wall of the first circular plate (31), the first circular plate (31) and the first circular ring (311) are hinged and the hinge rotating shaft is the axis of the first circular plate (31), the first sliding block (312) is arranged on the outer side wall of the first circular ring (311), the first sliding block (312) is adaptive to the first sliding groove (121), the first sliding block (312) is pressed at the bottom of the first blind hole (11), the external threaded rod (32) which is coaxial is arranged on the lower end face of the first circular plate (31), the external threaded rod (32) is screwed on the upper end of the blind hole (12), the first circular rod (32) which is coaxial with the external threaded rod (33), the first circular rod (33) is hinged with the outer threaded rod (331), and the inner side wall of the clamping plate (21) which is hinged.

4. A fastening screw according to claim 1, wherein: spacing lid (4) are established in first blind hole (11), and spacing lid (4) up end is equipped with pull ring (41), and the terminal surface is equipped with gag lever post (42) under spacing lid (4), and gag lever post (42) lateral wall is equipped with globular card (421), and gag lever post (42) adaptability is established in first spout (121), and globular card (421) adaptability card is in draw-in groove (122).

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