CN200975395Y

CN200975395Y - Locking mechanism

Info

Publication number: CN200975395Y
Application number: CN 200620036128
Authority: CN
Inventors: 何国福; 陈传彬
Original assignee: CSR Ziyang Locomotive Co Ltd
Current assignee: CRRC Ziyang Co Ltd
Priority date: 2006-11-06
Filing date: 2006-11-06
Publication date: 2007-11-14
Anticipated expiration: 2016-11-06

Abstract

The utility model discloses a locking mechanism, which belongs to the technological field of mechanical parts connecting device. The locking mechanism comprises a switch base with groove. The bottom of the groove is provided with a screw hole, and one end of the groove which is far from the screw hole is provided with a fastener. A moveable switch is installed slideably in the groove of the switch base and on the same end to the fastener. The moveable switch is provided with a spring cavity. One head surface of the moveable switch which is close to the screw hole is provided with teeth. The moveable switch comprises a flange which is opposite to the fastener. In addition, the moveable switch is provided with a pulling block which stretches beyond the fastener. One end of the spring which is positioned in the spring cavity of the moveable switch leans against lateral wall of the cavity, and the other end props against lateral wall of the groove. Rachet bolt is connected movably with the switch base through screw hole. Head of the rachet bolt is provided with socket hexagon hole. Edge of head of the rachet bolt is provided with a rachet which matches the teeth of the moveable switch. The utility model makes connection of the bolt reliable. In addition, the utility model with easy disassembly and simple structure is suitable using in connection of mechanical components with strong vibration.

Description

Locking mechanism

Technical field

The utility model relates to a kind of mechanical part connection set, especially relates to a kind of mechanical part connection set that is applicable to that vibration is stronger.

Background technique

At mechanical field, mechanical part connection set commonly used has screw connection, pin to connect and be connected or the like with rivet.Because screw connects just and dismounting, is extensively used, and in order to prevent screw counter-rotating or loosening, increases a spring washer usually in screw connects.But screw connects very unreliable, especially for the relatively more severe parts of some vibrations, only depend on spring washer can not stop screw counter-rotating or loosening, time one is long, the situation especially severe of screw loosening, thus influence the reliability of institute's connected element work.

The model utility content

The purpose of this utility model is: provide a kind of screw to connect locking mechanism very reliable, for convenience detach.

The technical solution of the utility model is: a kind of locking mechanism, comprise switch base, and switch base is provided with groove, and bottom portion of groove is provided with tapped hole, and groove departs from tapped hole one port part and is provided with buckle; Movable switch is slidably mounted in the groove of switch base and is positioned at buckle one end, wherein, be provided with the spring cavity of mounting spring in the movable switch, movable switch is provided with tooth near the end face of tapped hole one side, movable switch is provided with and the corresponding flange of buckle, also is provided with on the movable switch to stretch out the outer shifting block of buckle; Spring one end is positioned at the spring cavity of movable switch and withstands on this chamber sidewall, and the other end withstands on the corresponding grooves sidewall; The ratchet screw flexibly connects by tapped hole and switch base, and the head of ratchet screw has inner hexagonal hole, and the ratchet that is provided with around the head of ratchet screw cooperates with the tooth on the movable switch.

When the utility model is installed, install spring and movable switch by technique scheme, inner hexagonal hole by the ratchet screw head on parts to be connected, under the effect of spring, makes the tooth on the movable switch and the ratchet of ratchet screw head closely cooperate screw-driving.

The utility model working principle is as follows: be fastenedly connected by ratchet screw and parts to be connected, under the effect of spring, the ratchet of tooth on the movable switch and ratchet screw head closely cooperates, and can prevent the counter-rotating of ratchet screw effectively, reliably; When needs were dismantled, along the shifting block that promotes movable switch away from the ratchet screw orientation, with the ratchet disengagement of the head of the tooth above the movable switch and ratchet screw, the inner hexagonal hole by the ratchet screw head just can take out screw easily.

Described groove is provided with along the switch base length direction.Narrow that the width direction of switch capsule just can do is set like this, to save material.

Described tapped hole is arranged at the position of slightly departing from groove length direction middle part.Be provided with like this and can rationally utilize the space.

The buckle of described groove is the dovetail groove buckle.Movable switch can be stuck in the groove of switch base, guarantee that also the shifting block of movable switch can be free to slide along buckle.Certainly, the buckle of described groove can also be other shapes.

The beneficial effects of the utility model are: it is very reliable, for convenience detach to make that screw connects, and simple in structure.

Below in conjunction with the drawings and specific embodiments the utility model is further specified.

Description of drawings

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

Fig. 2 is the left view of Fig. 1;

Fig. 3 is the plan view of Fig. 1;

Fig. 4 is the plan view of movable switch in the utility model;

Fig. 5 is the left view of Fig. 4;

Fig. 6 is the plan view of Fig. 4;

Fig. 7 is the structural representation of ratchet screw in the utility model;

Fig. 8 is that the A of Fig. 7 is to local enlarged diagram;

Fig. 9 is the structural representation of switch base in the utility model;

Figure 10 is the left view of Fig. 9;

Figure 11 is the plan view of Fig. 9;

Wherein, reference character is: 1 is spring, and 2 is movable switch, and 2-1 is a shifting block, and 2-2 is a flange, and 2-3 is the spring cavity, and 2-4 is a tooth, and 3 is the ratchet screw, and 3-1 is an inner hexagonal hole, and 3-2 is a ratchet, and 4 is switch base, and 4-1 is a groove, and 4-2 is a tapped hole, and 4-3 is a buckle.

Embodiment

To shown in Figure 11, a kind of locking mechanism comprises switch base 4 as Fig. 1, switch base 4 is provided with groove 4-1, and groove 4-1 bottom is provided with tapped hole 4-2, and groove 4-1 departs from tapped hole 4-2 one port part and is provided with buckle 4-3, buckle 4-3 is the dovetail groove buckle, deviates from groove 4-1 to prevent movable switch 2; Movable switch 2 is slidably mounted in the groove 4-1 of switch base 4 and is positioned at buckle 4-3 one end, make movable switch 2 to be free to slide along buckle 4-3, wherein, be provided with the spring cavity 2-3 of mounting spring 1 in the movable switch 2, movable switch 2 is provided with tooth 2-4 near the end face of tapped hole 4-2 one side, this tooth is used for cooperating with the ratchet 3-2 of the head of ratchet screw 3, and movable switch 2 is provided with the corresponding flange 2-2 with buckle 4-3, and the shifting block 2-1 that movable switch 2 is provided with stretches out outside the buckle 4-3; Spring 1 one ends are positioned at the spring cavity 2-3 of movable switch 2 and withstand on this chamber sidewall, and the other end withstands on the groove 4-1 sidewall of relevant position, and under the active force of spring 1, the ratchet 3-2 of tooth 2-4 on the movable switch 2 and ratchet screw 3 heads closely cooperates; Ratchet screw 3 flexibly connects by tapped hole 4-2 and switch base 4, the head of ratchet screw 3 has inner hexagonal hole 3-1, by inner hexagonal hole 3-1 ratchet screw 3 is tightened on the parts to be connected, the ratchet 3-2 that is provided with around the head of ratchet screw 3 cooperates with the tooth 2-4 on the movable switch 2.

Describe structure of the present utility model, feature and function in detail though it is pointed out that embodiment, be not limited in said structure, such as, described groove can be provided with along the switch base length direction, like this width direction of switch capsule just can do narrow, to save material; Described tapped hole is arranged at the position of slightly departing from groove length direction middle part, is provided with like this and can rationally utilizes the space; Described dovetail groove buckle can also be other buckle shapes, as long as possess the function that prevents that movable switch from deviating from groove and movable switch can be slided along buckle.

Claims

1, a kind of locking mechanism is characterized in that: comprise switch base (4), switch base (4) is provided with groove (4-1), and groove (4-1) bottom is provided with tapped hole (4-2), and groove (4-1) departs from tapped hole (4-2) port part and is provided with buckle (4-3); Movable switch (2) is slidably mounted in the groove (4-1) of switch base (4) and is positioned at buckle (4-3) end, wherein, be provided with the spring cavity (2-3) of mounting spring (1) in the movable switch (2), movable switch (2) is provided with tooth (2-4) near the end face of tapped hole (4-2) side, movable switch (2) is provided with and the corresponding flange of buckle (4-3) (2-2), also is provided with on the movable switch (2) to stretch out the outer shifting block (2-1) of buckle (4-3); Spring (1) one end is positioned at the spring cavity (2-3) of movable switch (2) and withstands on this chamber sidewall, and the other end withstands on corresponding grooves (4-1) sidewall; Ratchet screw (3) flexibly connects by tapped hole (4-2) and switch base (4), and the head of ratchet screw (3) has inner hexagonal hole (3-1), and the ratchet (3-2) that is provided with around the head of ratchet screw (3) cooperates with the tooth (2-4) on the movable switch (2).

2, a kind of locking mechanism according to claim 1 is characterized in that: described groove (4-1) is along switch base (4) length direction setting.

3, a kind of locking mechanism according to claim 1 and 2 is characterized in that: tapped hole (4-2) is arranged at the position of slightly departing from groove (4-1) length direction middle part.

4, a kind of locking mechanism according to claim 1 and 2 is characterized in that: the buckle (4-3) of described groove (4-1) is the dovetail groove buckle.