Self-locking bolt fastener

Abstract

The utility model discloses a self-locking type bolt fastener which comprises a supporting mechanism connected to a steel member, a limiting mechanism is installed on the supporting mechanism, a bolt mechanism is arranged on the limiting mechanism, the limiting mechanism comprises a pressing plate, a round rod and a spring, one end of the round rod is connected with the pressing plate, the other end of the round rod is connected with the spring, and the bolt mechanism is arranged on the pressing plate. The bolt mechanism comprises a bolt body and an annular groove, and the annular groove is formed in the upper end of the side wall of the bolt body; the round rod is pulled outwards, the round rod stretches the spring, meanwhile, the round rod pulls the pressing plate into the inner groove, the bolt body penetrates through the through hole, the bolt body is screwed into the mounting hole, at the moment, the bolt body drives the annular groove to move to be aligned with the inner groove, the round rod is loosened, and the round rod moves towards the inner groove under the elastic force effect of the spring; and the round rod pushes the pressing plate to be clamped into the annular groove, so that the effect of limiting displacement of the bolt body is achieved, and then the situation that the bolt body is loosened and falls off due to shaking is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to bolt fastener device field especially is self -locking bolt fastener. BACKGROUND

[0002] Bolt: mechanical parts, by head and screw rod (cylinder with external thread) two parts constitute a kind of fastener, need to cooperate with nut, used for fastening connection two parts with through hole. This connection form is called bolt connection.

[0003] When beam column and other structural members are connected, bolt is used for fixed connection, and the existing conventional bolt only realizes the function of screwing in fixedly, when beam column and other structural members vibrate or shake, bolt is prone to shake and loosen, thereby making the connection of beam column and other structural members ineffective, therefore, self-locking bolt fastener is needed to avoid bolt loosening and falling off due to shaking, leading to the ineffective connection of beam column and other structural members. UTILITY MODEL CONTENT

[0004] The utility model aims at overcoming the defect that conventional bolt is prone to shaking, loosening and falling off and provides self-locking bolt fastener.

[0005] The technical scheme for achieving the above-mentioned purpose is as follows: a self-locking bolt fastener, comprising a supporting mechanism connected to a steel member, a limiting mechanism is installed on the supporting mechanism, and a bolt mechanism is arranged on the limiting mechanism.

[0006] The limiting mechanism comprises a pressing plate, a round rod and a spring, one end of the round rod is connected with the pressing plate, and the other end of the round rod is connected with the spring.

[0007] The bolt mechanism comprises a bolt body and a ring groove, and the ring groove is formed in the side wall of the bolt body.

[0008] Preferably, the shape of the pressing plate is semicircular ring.

[0009] Preferably, the inner diameter of the pressing plate is equal to the inner diameter of the ring groove.

[0010] Preferably, the supporting mechanism comprises a connecting plate, a through hole, an inner groove and a sliding hole, the top end of the steel member is connected with the connecting plate, the top end of the connecting plate is provided with the through hole, the side wall of the through hole is provided with the inner groove, the side wall of the connecting plate is provided with two symmetrically distributed sliding holes, and the sliding holes are communicated with the inner groove.

[0011] Preferably, the pressing plate is located on the inner side of the inner groove, the side wall of the round rod is slidably connected with the sliding hole, and one end of the spring is connected with the side wall of the connecting plate.

[0012] Preferably, one end of the round rod away from the connecting plate is connected with a supporting plate, the shape of the supporting plate is L-shaped, and the two supporting plates are staggered.

[0013] Preferably, the side wall of the support plate is provided with a first limiting hole, the end of the support plate away from the round rod is provided with a second limiting hole, the side wall of the connecting plate is provided with a insertion hole, and a limiting rod is inserted into the insertion hole.

[0014] Preferably, the second limiting hole is in the shape of a semicircular hole.

[0015] The utility model discloses the beneficial effect is:

[0016] 1) pull out the round rod, and the round rod stretches the spring, simultaneously, the round rod is entered into the inner groove with the pressing plate, and the bolt body is passed through the through -hole, and the bolt body is screwed into the mounting hole, at this time, the bolt body drives the annular groove to move into alignment with the inner groove, and the round rod is moved to the inner groove direction under the elastic force of the spring, and the round rod pushes the pressing plate and is clamped into the annular groove, thereby realizing the effect of limiting the displacement of the bolt body, and further avoiding the loosening and falling situation caused by the shaking of the bolt body.

[0017] 2) pull out the round rod, and the round rod pulls out the support plate, and the side wall of the one end of the two support plates is flush, and the two second limiting holes are flush and form a complete circle, at this time, the second limiting hole is aligned with the insertion hole, the limiting rod is passed through the second limiting hole, and then is inserted into the insertion hole, so that the support plate can not move inward, thereby conveniently keeping the state that the pressing plate is located in the inner groove, and when the pressing plate is clamped into the annular groove, the round rod will pull the support plate and move inward, and the two support plates will move towards each other, so that the first limiting hole can be aligned with the insertion hole, at this time, the limiting rod is passed through the first limiting hole and is inserted into the insertion hole, to further improve the fixing stability of the pressing plate. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0019] Figure 2 It is the sectional front view structure schematic diagram of the utility model;

[0020] Figure 3 It is the sectional left view structure schematic diagram of the utility model;

[0021] Figure 4 It is the sectional top view structure schematic diagram of the utility model;

[0022] Figure 5 It is the bolt body structure schematic diagram of the utility model;

[0023] Figure 6 It is Figure 4 The enlarged structure schematic diagram of A in the figure.

[0024] Reference numerals:

[0025] 1 steel member; 2 connecting piece; 3 supporting mechanism; 301 connecting plate; 302 through hole; 303 inner groove; 304 sliding hole; 4 limiting mechanism; 401 pressing plate; 402 round rod; 403 spring; 5 bolt mechanism; 501 bolt body; 502 ring groove; 6 supporting plate; 7 insertion hole; 8 limiting rod; 9 first limiting hole; 10 second limiting hole. DETAILED DESCRIPTION

[0026] The technical scheme of the present application will be described clearly and completely below in conjunction with the drawings. In the description of the present application, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying the importance of the opposite.

[0027] The present application will be further described below in conjunction with the drawings.

[0028] Reference is made to the accompanying drawings Figures 1-6 The self-locking bolt fastener comprises a supporting mechanism 3 connected to a steel member 1, a limiting mechanism 4 installed on the supporting mechanism 3, and a bolt mechanism 5 provided on the limiting mechanism 4.

[0029] The limiting mechanism 4 comprises a pressing plate 401, a round rod 402 and a spring 403, one end of the round rod 402 is connected with the pressing plate 401, the other end of the round rod 402 is connected with the spring 403, and the shape of the pressing plate 401 is a semicircular ring.

[0030] The bolt mechanism 5 comprises a bolt body 501 and a ring groove 502, the ring groove 502 is formed on the side wall of the bolt body 501, and the inner diameter of the pressing plate 401 is equal to the inner diameter of the ring groove 502.

[0031] The supporting mechanism 3 comprises a connecting plate 301, a through hole 302, an inner groove 303 and a sliding hole 304, the top end of the steel member 1 is connected with the connecting plate 301, the top end of the connecting plate 301 is provided with the through hole 302, the side wall of the through hole 302 is provided with the inner groove 303, the side wall of the connecting plate 301 is provided with two symmetrically distributed sliding holes 304, the sliding holes 304 are communicated with the inner groove 303, the pressing plate 401 is located on the inner side of the inner groove 303, the side wall of the round rod 402 is slidably connected with the sliding hole 304, and one end of the spring 403 is connected with the side wall of the connecting plate 301.

[0032] Weld the connecting plate 301 to the surface of the steel member 1, align the through hole 302 with the mounting hole on the steel member 1, align the mounting hole on the steel member 1 with the mounting hole on the connecting piece 2, at this time, pull the round rod 402 outward, the round rod 402 stretches the spring 403, at the same time, the round rod 402 pulls the pressing plate 401 into the inner groove 303, passes the bolt body 501 through the through hole 302, screws the bolt body 501 into the mounting hole, at this time, the bolt body 501 drives the ring groove 502 to move into alignment with the inner groove 303, loosen the round rod 402, the round rod 402 moves in the direction of the inner groove 303 under the elastic force of the spring 403, the round rod 402 pushes the pressing plate 401 to be clamped into the ring groove 502, so that the effect of limiting the displacement of the bolt body 501 is realized, and the loosening and falling off of the bolt body 501 due to shaking is avoided.

[0033] Reference is made to the accompanying drawings Figures 3-6 The end of the round rod 402 away from the connecting plate 301 is connected with a branch plate 6, the branch plate 6 is in the shape of an L-shaped, the two branch plates 6 are staggered, the side wall of the branch plate 6 is provided with a first limiting hole 9, the end of the branch plate 6 away from the round rod 402 is provided with a second limiting hole 10, the side wall of the connecting plate 301 is provided with a plug hole 7, a limiting rod 8 is inserted into the plug hole 7, and the second limiting hole 10 is in the shape of a semicircular hole.

[0034] Pull the round rod 402 outward, the round rod 402 pulls the branch plate 6 outward, so that the side walls of the two branch plates 6 are flush at one end, and the two second limiting holes 10 are flush to form a complete circle, at this time, the second limiting hole 10 is aligned with the plug hole 7, the limiting rod 8 is passed through the second limiting hole 10 and then inserted into the plug hole 7, so that the branch plate 6 cannot move inward, thereby facilitating the pressing plate 401 to be kept in the state of being located in the inner groove 303, and when the pressing plate 401 is clamped into the ring groove 502, the round rod 402 pulls the branch plate 6 to move inward, the two branch plates 6 move towards each other, so that the first limiting hole 9 can be aligned with the plug hole 7, at this time, the limiting rod 8 is passed through the first limiting hole 9 and inserted into the plug hole 7, so as to further improve the fixing stability of the pressing plate 401.

[0035] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A self-locking bolt fastener characterized by, Including support mechanism (3) connected on steel component (1), limit mechanism (4) is installed on the support mechanism (3), bolt mechanism (5) is arranged on the limit mechanism (4); The limit mechanism (4) includes a pressing plate (401), a round rod (402) and a spring (403), one end of the round rod (402) is connected with the pressing plate (401), the other end of the round rod (402) is connected with the spring (403); The bolt mechanism (5) includes a bolt body (501) and a ring groove (502), the sidewall of the bolt body (501) is provided with the ring groove (502).

2. The self-locking bolt fastener of claim 1, wherein, The shape of the pressing plate (401) is semicircular ring.

3. The self-locking bolt fastener of claim 1, wherein, The inner diameter of the pressing plate (401) is equal to the inner diameter of the ring groove (502).

4. The self-locking bolt fastener of claim 1, wherein, The support mechanism (3) includes a connecting plate (301), a through hole (302), an inner groove (303) and a sliding hole (304), the top end of the steel component (1) is connected with the connecting plate (301), the top end of the connecting plate (301) is provided with the through hole (302), the sidewall of the through hole (302) is provided with the inner groove (303), the sidewall of the connecting plate (301) is provided with two symmetrically distributed sliding holes (304), and the sliding holes (304) are communicated with the inner groove (303).

5. The self-locking bolt fastener of claim 4, wherein, The pressing plate (401) is located inside the inner groove (303), the sidewall of the round rod (402) is slidably connected with the sliding hole (304), and one end of the spring (403) is connected with the sidewall of the connecting plate (301).

6. The self-locking bolt fastener of claim 4, wherein, The end of the round rod (402) away from the connecting plate (301) is connected with a support plate (6), the shape of the support plate (6) is L-shaped, and the two support plates (6) are staggered.

7. The self-locking bolt fastener of claim 6, wherein, The sidewall of the support plate (6) is provided with a first limiting hole (9), the end of the support plate (6) away from the round rod (402) is provided with a second limiting hole (10), the sidewall of the connecting plate (301) is provided with a plug hole (7), and the plug hole (7) is inserted with a limiting rod (8).

8. The self-locking bolt fastener of claim 7, wherein, The second limiting hole (10) is semicircular hole.

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