KR101215553B1 - Actuator - Google Patents

Abstract

The present invention relates to a dust inflow prevention actuator that can be made more compact by improving its structure in an actuator operating forward and backward in conjunction with a solenoid, and in particular, by preventing dust from entering from the outside.
The present invention provides a solenoid device (2) for generating power; It is composed of a plunger device (P) connected to the solenoid device (2) to operate back and forth, the plunger device (P), one end is bent to form a hook (63), tapered inclined surface ( A shaft 6 in which 64 is formed; An elastic member 7 coupled to an outer side of the shaft 6 and mounted to the inclined surface 64; A main body (4) having a sleeve into which the other end of the shaft (6) is inserted and fitted; It is coupled to the outside of the main body 4 includes a cap (8) which is covered on the outside of the elastic member (7).

Description

Dust Ingress Actuator {ACTUATOR}

The present invention relates to an actuator, and more particularly, in an actuator that works in conjunction with a solenoid to move forward and backward, the structure thereof may be improved to be more compact, and in particular, the durability may be improved by blocking the inflow of dust from the outside. One dust ingress prevention actuator is related.

In general, the actuator acts to drive the accessories connected to the other side while the lifting operation or inching operation by the power transmitted from one side.

1 is a perspective view showing a conventional actuator, Figure 2 is an exploded perspective view of a conventional actuator.

As shown in Figs. 1 and 2, the conventional actuator A 'includes a solenoid device 2' that exerts power; A shaft 6 'coupled to the solenoid device 2' and operated forward and backward by power and having a coupler 62 'formed at one end thereof; A spring 7 'coupled to the shaft 6' to provide an elastic force; The shaft 6 'is composed of a body 4' which is coupled and operated.

When power is generated in the solenoid device 2 'and the shaft 6' is drawn into the body 4 ', the spring 7' is in a compressed state, whereby the other spring coupled to the coupler 62 '. The accessory will be pulled out.

On the contrary, when the operation of the solenoid device 2 'is stopped, the shaft 6' is pulled out while the spring 7 'is restored by the elasticity to be stretched, and other components coupled thereto are pushed out.

However, the prior art has a problem that it is difficult to miniaturize the spring (7 ') is made of a circular shape slightly larger than the outer circumferential surface of the shaft (6') because it is in close contact with each other and has a certain length even if reduced to a minimum volume.

In addition, in the prior art, since the spring 7 'is not a structure fixed to the shaft 6', the position is changed by frequent expansion and contraction, thereby causing a problem in that it does not play a role.

In addition, the prior art has a problem that the spring (7 ') is exposed to the outside, the dust is laminated from the outside to prevent the smooth operation, the durability is reduced.

The present invention has been made to solve the above-mentioned problems of the prior art, in the actuator operating in conjunction with the solenoid forward and backward to improve the structure of the plunger assembly to reduce the compressed length by using a compression spring of the two diameters. In addition, the object of the present invention is to provide an anti-dust actuator that can increase the elastic force to improve the more compact structure and durability.

It is another object of the present invention to provide a dust inflow prevention actuator which can improve durability and reliability by providing a cap to prevent inflow of dust from the outside.

An object of the present invention described above, the solenoid device for generating power; A plunger device connected to the solenoid device and operating forward and backward, the plunger device comprising: a shaft having one end bent to form a hook and a tapered inclined surface on an outer circumferential surface thereof; An elastic member coupled to the outer side of the shaft and mounted on the inclined surface; A main body having a sleeve into which the other end of the shaft is inserted; It is achieved by a dust inlet prevention actuator including a cap coupled to the outside of the main body and covered on the outside of the elastic member.

The inclined surface of the shaft is formed to be inclined so as to increase in diameter from the hook to the outer cylinder, characterized in that a ring groove for fixing one end of the elastic member is formed in a portion adjacent to the hook.

The elastic member is characterized in that the compression spring is larger in diameter from one end to the other end.

The cap may include a body having an upper portion and both ends opened therein and having a space therein, and a blocking plate having a through hole to which the hook and the shaft are fitted and attached to one end of the body.

According to the present invention, by using the compression spring of the two-diameter, the compressed length can be greatly reduced, which can be miniaturized, and it is possible to prevent dust from entering from the outside, thereby improving durability and reliability.

1 is a perspective view showing a conventional actuator,
Figure 2 is an exploded perspective view of a conventional actuator.
3 is a perspective view showing an actuator according to the present invention,
4 is an exploded perspective view showing an actuator according to the present invention.
5 is a sectional view showing a 'shaft' of the dust inflow prevention actuator according to the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 is a combined perspective view showing a dust inflow prevention actuator according to the present invention, Figure 4 is an exploded perspective view showing a dust inflow prevention actuator according to the present invention, Figure 5 is a sectional view showing a 'shaft' of the dust inflow prevention actuator according to the present invention to be.

As shown in Fig. 3 and Fig. 4, the dust inflow prevention actuator A according to the present invention includes: a solenoid device 2 for generating power; It is connected to the solenoid device 2 includes a plunger device (P) for operating forward and backward.

The plunger device (P) comprises: a shaft (6) having a hook (63) coupled to one end and having an inclined surface (64) tapered on an outer circumferential surface thereof; An elastic member (7) fitted to an outer side of the shaft (6) and mounted to the inclined surface (64); A main body 4 to which the shaft 6 is coupled; And a cap 8 coupled to the outside of the body 4 such that the shaft 6 and the elastic member 7 are coupled therein.

The solenoid device 2 is a long coil that generates a magnetic field when current flows. The solenoid, in consultation, refers to an electromechanical device that generates dynamics using current as energy.

Therefore, the shaft 6 can be moved forward and backward by driving the solenoid device 2.

As shown in Figures 4 and 5,

The shaft 6 is formed with a coupling hole 620 having a screw portion inside the front end, a cylindrical portion 62 is formed with an inclined surface 64 on the front outer peripheral surface,

The outer side is reduced in diameter to form an annular groove (65) and the screw portion is formed to be coupled to the coupling hole 620, and includes a coupling hole 69 formed with a fastening hole 690 having a screw portion inside the front end.

The hook 63 is formed in a substantially 'b' shape by bending a round rod having a diameter smaller than that of the shaft 6 to one end, and a rear end of the hook 63 is screwed into a fastening hole 690 of the coupler 69. Threaded parts are formed.

Preferably, the inclined surface 64 is formed to be inclined upward so as to increase in diameter from the hook 63 toward the main body 4.

In addition, the coupler 69 is formed at the beginning of the inclined surface 64 and the annular groove 65 for fixing one end of the elastic member 7 in the portion adjacent to the hook 63.

That is, the ring groove 65 is formed by stepping the outer circumferential surface of the coupler 69 by making the diameter smaller.

The elastic member 7 is preferably a compression spring of a two-diameter conical shape having a small diameter portion and a large diameter portion of the other end so as to increase in diameter from one end to the other end.

Since the elastic member 7 has a shape that gradually increases in diameter from one end to the other end, the thickness of the elastic member 7 may be significantly reduced by overlapping when compressed, so that the volume may be minimized.

When the small diameter portion (meaning left shear in FIG. 4) of the elastic member 7 is brought into close contact with the rear end of the shaft 6 and is forcibly opened, the small diameter portion having elasticity is expanded and tightly fitted to the outer circumferential surface of the shaft 6. When the small diameter portion is inserted into the annular groove 65 through the inclined surface 64 in this state, it can be coupled to fit.

The cap 8 has a semicircular body 82 having an upper and rear end openings and a space therein, and a through hole formed at a front end of the body 82 and fitted with the hook 63 and the shaft 6. 840 is formed and includes a blocking plate 84, the upper surface of the upper side of the body 82 is formed with a fastener 86 bent inwardly.

The main body 4 has a box shape having a sleeve into which the other end of the shaft 6 is inserted and fitted therein, and a cover 42 is coupled to an upper portion thereof, and the cover 42 extends longer in the front to form a cap. (8) is joined to cover up to the top.

In addition, a locking jaw 422 is formed at an upper portion of the cover 42 so as to be engaged with the fastener 86 of the cap 8.

The combination and operation relationship of the present invention configured as described above will be described.

When power is applied to the solenoid device 2, the plunger device P is driven.

That is, the shaft 6 is drawn into the main body 4, whereby the elastic member 7 is compressed to minimize the thickness, and the hook 63 is also drawn toward the main body 4 by following it.

Therefore, by pulling the accessory (not shown) connected to the hook 63 will cause the operation of other components (not shown).

On the other hand, when the power supply of the solenoid device 2 is stopped, the shaft 6 and the hook 63 are drawn out by the original restoring force of the elastic member 7.

Thus, by pushing the accessory (not shown) connected to the hook 63 in reverse, it causes a different operation of the component (not shown).

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it will be apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the invention, It is obvious that the claims fall within the scope of the claims.

2: solenoid device 4: body
6 shaft 7 elastic member
8: cap 63: hook
64: slope 65: round groove

Claims (5)

A solenoid device 2 for generating power;
It is composed of a plunger device (P) which is connected to the solenoid device (2) to operate back and forth,
The plunger device P,
A shaft 6 having a hook 63 coupled to one end and having an inclined surface 64 formed on an outer circumferential surface thereof;
An elastic member 7 fitted to an outer side of the shaft 6 and installed on the inclined surface 64;
A main body 4 to which the shaft 6 is coupled;
A cap 8 coupled to the outside of the main body 4 such that the shaft 6 and the elastic member 7 are coupled therein,
The main body 4 is
It is box-shaped with a sleeve into which the shaft 6 is inserted,
The upper cover 42 is formed to cover the upper portion of the cap 8 is coupled,
Dust cover prevention actuator, characterized in that the upper portion of the cover 42 is formed with a locking step (422) coupled to the cap (8). delete The method of claim 1,
The shaft 6
A cylindrical portion 62 having a coupling hole 620 having a screw portion inside the front end, and having an inclined surface 64 formed on the front outer circumferential surface thereof;
The outer side is reduced in diameter to form an annular groove (65) and the screw portion is formed to be coupled to the coupling hole 620, the coupling hole 69 is formed with a fastening hole 690 having a screw portion inside the front end
Dust inflow prevention actuator comprising a. The method of claim 1,
The elastic member 7 is a dust inflow prevention actuator, characterized in that the conical shape of the conical shape having a small diameter portion and a large diameter portion of the other end so as to increase in diameter from one end to the other end. The method of claim 1,
The cap 8 is
A semicircular body 82 having an upper end and a rear end open and having a space therein;
Fixtures (86) are bent inwardly on both sides of the upper portion of the body (82) and coupled to the locking jaw (422);
A blocking plate 84 formed at a front end of the body 82 and having a through hole 840 into which the hook 63 and the shaft 6 are fitted;
Dust inflow prevention actuator comprising a.

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