CN2921414Y

CN2921414Y - Locking bolt

Info

Publication number: CN2921414Y
Application number: CN 200620109440
Authority: CN
Inventors: 吴健
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-06-05
Filing date: 2006-06-05
Publication date: 2007-07-11
Anticipated expiration: 2016-06-05

Abstract

The utility model discloses a locking bolt belonging to fastener aiming at providing a bolt with simple structure, convenient disassembly and good locking effect. The technical proposal comprises a bolt and a washer. The bolt head (8) is provided with a locking mechanism which consists of a pin hole (3) on the working face of the bolt head (8), a button hole (1) at the side face communicated with the pin hole, a spring (2) and a movable pin (5) arranged in the pin hole (3) and a button (4) arranged in the button hole (1). The button (4) is provided with a chute (14) at the end face and an inverted bevel (13) at the side face intersected with the chute (14). The middle section of the movable pin (5) is provided with a slider (16) fitted with the chute (14) and a bevel (15) fitted with the inverted bevel (13), and the contact surface between the washer (7) and the bolt head (8) is provided uniformly with positioning pits (12). The utility model has convenient disassembly and assembly and repeatable use, thus the utility model is an ideal locking bolt.

Description

Chek bolt

Technical field: the utility model relates to a kind of bolt, relates in particular to a kind of bolt of becoming flexible of can preventing.

Background technique: at present, the common method that prevents bolt looseness generally all is to adopt the mode that fasteners such as elastic washer, toothed washer or shell fragment are compressed to realize, but the occasion higher in some vibration frequencies, that Oscillation Amplitude is bigger, it is loosening that said method can not prevent effectively that still bolt or nut from producing, machinery equipment usually because of bolt looseness, come off and cause damage, even also can cause casualty accident.

Summary of the invention: at the above-mentioned defective that exists in the prior art, the utility model aims to provide a kind of simple in structure, convenient disassembly, chek bolt that anti-loosing effect is good.

To achieve these goals, the utility model by the following technical solutions: it comprises bolt and packing ring; Bolt head is provided with locking mechanism, this mechanism by the pin-and-hole that is located at the bolt head working surface, be located at that side and this hole pass through mutually by buttonhole, be installed in spring and loose pin in the pin-and-hole, be installed in by the button in the buttonhole and constitute; The contra bevel that the end face of button has chute, the side is provided with cuts mutually with chute, the stage casing of loose pin be provided with the suitable slide block of chute and with the suitable positive bevel of contra bevel; The surface that packing ring contacts with bolt head is evenly equipped with positioning pit.

The surface that packing ring contacts with workpiece is provided with reticulate pattern; The surface that packing ring contacts with workpiece is provided with the serrate slot that radially distributes; The surface that packing ring contacts with workpiece is provided with a projection; The bottom surface of positioning pit is downward-sloping along the opposite direction that bolt head screws direction; With the screw rod nut engaged on be provided with described locking mechanism, and adopt packing ring and nut supporting; With the screw rod nut engaged on be provided with described locking mechanism and adopt packing ring and nut supporting, the bus of screw rod is provided with groove, the interior circle of packing ring is provided with the projection suitable with this groove.

Compared with the prior art, the utility model is owing to increased the spring locking mechanism on the basis of plain bolt head or plain nut, and be provided with antiskid lock locking structures such as reticulate pattern or serrate slot on the surface of packing ring, therefore effectively overcome the defective of conventional method anti-loosing effect difference; In addition, the utility model also has convenient disassembly, advantage such as reusable.

Description of drawings:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the packing ring that adopts of the utility model and the structural representation of workpiece surface of contact;

Fig. 3 is the packing ring of the utility model embodiment two employings and the structural representation of workpiece surface of contact;

Fig. 4 is the packing ring of the utility model embodiment three employings and the structural representation of workpiece surface of contact;

Fig. 5 is the rear view of Fig. 2, Fig. 3, Fig. 4;

Fig. 6 is the A-A sectional view among Fig. 5;

Fig. 7 is a button structural representation of the present utility model;

Fig. 8 is the left view among Fig. 7;

Fig. 9 is the plan view among Fig. 7;

Figure 10 is a loose pin structural representation of the present utility model;

Figure 11 is the left view among Figure 10;

Figure 12 is the plan view among Figure 10;

Figure 13 is the utility model embodiment four a structural representation;

Figure 14 is the B-B sectional view among Figure 13.

Among the figure: press buttonhole 1 spring 2 pin-and-holes 3 buttons 4 loose pins 5 screw rods 6 packing rings 7 bolt heads 8 protruding 9 reticulate patterns, 10 serrate slots, 11 positioning pits, 12 contra bevels, 13 chutes, 14 positive bevels, 15 slide blocks, 16 nuts, 17 grooves, 18 projections 19

Embodiment: the utility model is described in further detail below in conjunction with accompanying drawing and specific embodiment:

Embodiment 1, Fig. 1,2 and Fig. 5～12 in: the surface of contact of packing ring 7 and workpiece is provided with the reticulate pattern 10, the another side that are used to increase friction and is evenly equipped with positioning pit 12.Bolt head 8 is provided with locking mechanism, this mechanism by the pin-and-hole 3 that is located at bolt head 8 working surfaces, be located at that bolt head 8 sides and this hole pass through mutually by buttonhole 1, be installed in spring 2 and loose pin 5 in the pin-and-hole 3, be installed in by the button in the buttonhole 14 and constitute, loose pin 5 inserts in the positioning pit 12 under the effect of spring 2.The end face of button 4 has the chute that runs through 14, a side along axial direction and is provided with a contra bevel 13 with 14 sections friendships of chute, the stage casing of loose pin 5 be provided with the suitable slide block 16 of chute 14 and with the suitable positive bevel 15 of contra bevel 13; The chute 14 of button 4, contra bevel 13 match with slide block 16, the positive bevel 15 of loose pin 5 respectively.In order to be convenient to operation when the fastening nut, the bottom surface of positioning pit 12 can be made into the plane of inclination that is similar to ratchet, and its true dip direction is downward-sloping along the opposite direction that bolt screws direction; Corresponding therewith, the end face of loose pin 5 is also correspondingly made and suitable inclined-plane, the bottom surface of positioning pit 12.

Embodiment 2, and as shown in Figure 3: under the identical situation of other structure and embodiment 1, the reticulate pattern 10 that is located at packing ring 7 surfaces also can be substituted by the serrate slot 11 that radially distributes.

Embodiment 3, and shown in Fig. 1,4: under the identical situation of other structure and embodiment 1, the reticulate pattern 10 that is located at packing ring 7 surfaces can also be substituted by a projection 9.Certainly, at the corresponding position of workpiece positioning holes adaptive with projection 9 to be set correspondingly also.

Embodiment 4, shown in Figure 13,14: for the workpiece that is connected and fixed by screw bolt and nut, locking mechanism described in the embodiment 1 can be arranged on the nut 17, a groove 18 is set on the bus of screw rod 6 simultaneously, and the interior circle of packing ring 7 be provided with one with the suitable projection 19 of this groove.

Claims

1. a chek bolt comprises bolt and packing ring; It is characterized in that: bolt head (8) is provided with locking mechanism, this mechanism by the pin-and-hole (3) that is located at bolt head (8) working surface, be located at that side and this hole pass through mutually by buttonhole (1), be installed in spring (2) and loose pin (5) in the pin-and-hole (3), be installed in by the button (4) in the buttonhole (1) and constitute; The contra bevel (13) that the end face of button (4) has chute (14), the side is provided with cuts mutually with chute (14), the stage casing of loose pin (5) be provided with the suitable slide block (16) of chute (14) and with the suitable positive bevel (15) of contra bevel (13); The surface that packing ring (7) contacts with bolt head (8) is evenly equipped with positioning pit (12).

2. chek bolt according to claim 1 is characterized in that: the surface that packing ring (7) contacts with workpiece is provided with reticulate pattern (10).

3. chek bolt according to claim 1 is characterized in that: the surface that packing ring (7) contacts with workpiece is provided with the serrate slot (11) that radially distributes.

4. chek bolt according to claim 1 is characterized in that: the surface that packing ring (7) contacts with workpiece is provided with a projection (9).

5. according to any described chek bolt in the claim 1～4, it is characterized in that: the bottom surface of positioning pit (12) is downward-sloping along the opposite direction that bolt head (8) screws direction.

6. according to any described chek bolt in the claim 1～4, it is characterized in that: with screw rod (6) nut engaged (17) on be provided with described locking mechanism, and adopt packing ring (7) and nut (17) supporting.

7. chek bolt according to claim 5 is characterized in that: with screw rod (6) nut engaged (17) on be provided with described locking mechanism, and adopt packing ring (7) and nut (17) supporting.

8. chek bolt according to claim 1, it is characterized in that: with screw rod (6) nut engaged (17) on be provided with described locking mechanism and adopt packing ring (7) and nut (17) supporting, the bus of screw rod (6) is provided with groove (18), and the interior circle of packing ring (7) is provided with the projection suitable with this groove (19).