KR101209078B1 - Crusher having funcion of bucket - Google Patents

Abstract

PURPOSE: A crusher with a bucket function is provided to remarkably reduce work time by simultaneously performing excavating and crushing without the replacement of a bucket member. CONSTITUTION: A crusher(1) with a bucket function comprises a crusher body(10), a crushing unit(20), a water spraying device(30), a reinforcing plate(40), and an opening and closing unit(50). The crusher body has a housing space(11) and a discharge port(12). The housing space receives collected stones therein. The discharge port discharges the stones crushed by the crushing unit to the outside. The crushing unit is installed in the inner one side of the crusher body and crushes the collected stones. The reinforcing plate is installed on one inner surface of the crusher body where the collected stones touch and prevents damage to the crusher body. The opening and closing unit selectively opens and closes the discharge port of the crusher body and simultaneously performs excavation and crushing works. [Reference numerals] (52) Control unit; (53) Operation unit

Description

Crusher having funcion of bucket

The present invention relates to a crusher having a bucket function, and more particularly, it is possible not only to significantly reduce the working time by being able to perform the excavation work and the crushing work without replacing the replacement work with a separate bucket member. The present invention relates to a crusher having a bucket function that can be easily managed and can reduce work costs.

In general, quarry sites and other areas are excavated to collect the collected material, and then the collected sample is crushed to obtain sufficient properties according to the purpose of use. Crushers are used to crush the same harvest.

The crusher is a roll type for pulverizing the sample while interlocking a cylindrical crushing drum having a large number of crushing blades formed on the outer surface, and the sample is introduced between a pair of crushing plates, and the collected material is crushed by a pair of crushing plate pressing force. It can be divided into flat type jaw crusher. In the case of roll type crusher, there is a limit to the size of the crushed sample depending on the size of the crushing drum. have.

1 is a cross-sectional view schematically showing a conventional jaw crusher.

As shown in Figure 1, the conventional jaw crusher 100 has a receiving space 111 is formed therein and the upper portion is opened, the sample is introduced into the interior through the upper crusher body formed with an outlet 112 on one side ( 110, a fixed crushing unit 120 fixedly installed on one side of the inner surface of the crusher body 110, and disposed inside the crusher main body 110 to face the fixed crushing unit 120, on one side of the crusher main body 110. It is composed of a movable crushing unit 130 and a rotating force providing means 140 for applying a rotational force to the movable crushing unit 130 is installed rotatably.

The conventional jaw crusher 100 is fixed while the movable crushing unit 130 is repeatedly rotated by the rotational force providing means 140 while the sample is introduced between the fixed crushing unit 120 and the movable crushing unit 130. The crushed stone is discharged through the discharge hole 112 formed in the crusher main body 110 by crushing by impacting the inflow sample between the crushing unit 120 and the movable crushing unit 130.

However, in the quarry site and the like, in addition to the crushing work of the harvested excavation to collect the collected object area, and excavation work to move the collected sample to another place, the conventional jaw crusher 100 is a crusher body Since the outlet 112 is formed at the lower portion of the 110 to collect the sample, the collected sample is discharged to the outside through the outlet 112, so that the receiving space 111 is formed inside to execute the excavation work. As it needs to be replaced with a box-shaped bucket member that is formed and opened at the top, it takes a cost to purchase a bucket member separately, which increases the operating cost, and requires an operation to replace the bucket member with excavation and crushing. When the work is performed in parallel, the work time is significantly increased.

In addition, in order to perform the excavation work and the crushing work in parallel, the worker had to store, manage or transport the jaw crusher 100 and the bucket member at the same time, so there was a problem that it was very cumbersome to manage.

The present invention has been made to solve the above problems, the object of the present invention is to significantly reduce the work time by being able to perform the excavation work and the crushing work in parallel without replacing the replacement with a separate bucket member In addition, the present invention provides a crusher with a bucket function that can be easily managed and can reduce work costs.

Another object of the present invention is to remove the crushed stone that is deposited on the upper surface of the opening and closing means in the process of crushing the collected material is not required to separate the crushed stone removal work can be improved as well as The present invention provides a crusher having a bucket function that can prevent damage and breakage of other components according to the deposited crushed stone.

According to an aspect of the present invention for achieving the above object, in the crusher having a bucket function for collecting the collected material from the sampling target area or crushed collected material, an accommodation space is formed therein, The crusher body is opened and the sample is introduced through the upper portion, and the crusher body having an outlet formed on one side of the lower surface, and installed on one side of the crusher body, and shredding means for crushing the sample introduced into the crusher body. And an opening / closing means installed on one side of the crusher body corresponding to the outlet, and selectively opening and closing the outlet while moving between an open position for opening the outlet and a shielding position for shielding the outlet. It provides a crusher having a bucket function.

The crushing means is fixedly coupled to one side of the inner wall of the crusher main body, and is rotatably coupled to one side of the crusher body facing the fixed crushing unit, and a lower end portion of the lower end of the fixed crushing unit. One side of the crusher main body and the movable crushing unit to rotate between the crushing position for crushing the rock flowing into the crusher main body and approaching the standby position to allow the crushed rock is discharged to the discharge port in close proximity It is preferred that the one side is connected to the movable crushing unit includes a rotational force providing means for providing a rotational force to the movable crushing unit.

In addition, the crusher may be installed on one side of the inside of the main body, the crusher may further include a watering device for spraying water to the sample introduced into the interior of the body.

In addition, it is preferable that the crusher further includes a reinforcing plate which is installed on one side of the sample that is introduced into the inside of the inner surface of the contact.

The opening and closing means may be interposed between a tip end portion of the crusher main body rotatably coupled to one side of the outer surface of the crusher main body and between the open position and the shielding position, between the crusher main body and the shielding plate, and the shielding plate. When the shielding plate is located at the shielding position of the elastic part and the outer surface of the crusher main body to apply an elastic force to the upper side is installed in a position corresponding to one side of the shielding plate, the shielding plate is opened by binding to one side of the shielding plate It may include an intermittent state to prevent movement to a position, and a locking means for performing a release state for releasing the intermittent state.

In addition, the upper end is rotatably coupled to the lower end of the movable crushing portion, the lower end is elastically contacted to one side of the upper surface of the shielding plate, when the movable crushing portion is rotated from the crushing position to the standby position the lower portion of the shielding plate It is preferable to further include a scratcher to move from one side of the upper surface of the shielding plate to the other side in contact with the upper surface and to press the upper surface of the shielding downward to rotate the shielding plate downward.

According to the present invention as described above, the opening and closing means is provided in the vicinity of the outlet of the crusher body, so that the operator can open and close the outlet of the crusher body in accordance with the selection of the excavation work and the crushing work without replacement work to replace the bucket member By doing so, not only can the work time be significantly shortened, but also the management is easy and the work cost can be reduced.

And, when the other end of the scratcher rotatably coupled to one side of the movable crushing part is in contact with one side of the upper surface of the opening and closing means, when the movable crushing part moves from the crushing position to the stand-by position, the scratcher presses the upper surface of the opening and closing means to the other side. It is possible to remove the crushed stone deposited on the upper surface of the opening and closing means as well as to press the upper surface of the opening and closing means to open and close the opening and closing means.

1 is a cross-sectional view schematically showing a conventional jaw crusher;
2 is a view showing a state in which a crusher having a bucket function is coupled to an excavator according to an embodiment of the present invention;
3 is a cross-sectional view of the crusher having a bucket function according to an embodiment of the present invention;
4 is a view showing a state in which the opening and closing means is operated according to an embodiment of the present invention,
5 is a view showing a state in which the shredding means is operated according to an embodiment of the present invention;
6 is a cross-sectional view of a crusher having a bucket function according to another embodiment of the present invention;
7 is a view illustrating a state in which a crusher having a bucket function is operated according to another embodiment of the present invention.

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

2 is a view showing a state in which a crusher having a bucket function according to an embodiment of the present invention is coupled to an excavator, and FIG. 3 is a cross-sectional view of the crusher having a bucket function according to an embodiment of the present invention.

As shown in FIG. 2, the crusher 1 having a bucket function according to an embodiment of the present invention includes a crusher body 10, a crushing means 20, a watering device 30, a reinforcing plate 40 and It is configured to include the opening and closing means (50).

The crusher main body 10 is formed in a box shape having an accommodation space 11 formed therein, and the collected material is introduced into the accommodation space 11 through the upper part of which the upper part is opened, and is described later on one side. A discharge port 12 through which the crushed stone is discharged by the crushing means 20 is formed.

And, the crusher body 10 is coupled to the boom front end of the excavator is formed with a coupling flange 13 on one side of the outer surface, a plurality of excavator blades 14 are formed on one side of the upper end to facilitate the excavation work.

The crusher main body 10 excavates the area to be collected during the excavation work, and also allows the collected sample to flow into the interior, thereby providing the receiving space 11 of the sample during the excavation work and collecting the sample during the shredding work. After the introduction into the crushing means 20 to be described later serves to provide an inlet and the discharge passage of the crushed stone so that the crushed crushed stone can be discharged to the outside.

The crushing means 20 is a fixed crushing part 21 fixedly installed on one side of the inner surface of the crusher body 10 and a movable crushing part provided in an area of the crusher body 10 facing the fixed crushing part 21. And a rotational force providing means 23 installed at one side of the inner surface of the crusher main body 10 and connected to the movable crushing unit 22, and introduced into the crusher main body 10 during the crushing operation. It acts to crush the harvest.

The fixed crushing portion 21 is formed in a substantially flat plate shape and is formed in a plurality of uneven shapes on one surface of the first support plate 21a and the first support plate 21a fixedly installed on one side of the inner surface of the crusher body 10. Including the first jaw plate 21b, and as described above, when the movable crushing unit 22 is rotated in a state of being fixed to one side of the inner surface of the crusher body 10 introduced into the crusher body 10 By repeatedly compressing the sample to serve to crush the sample with the movable crushing unit 22.

The movable crushing portion 22 is fixed in the second support plate 22a and the second support plate 22a, the upper end of which is rotatably coupled to one side of the crusher main body 10 that faces the fixed crushing portion 21. And a second jaw plate 22b formed in a plurality of concavo-convex shapes on one surface facing the crushing portion 21, and when rotated to approach the fixed crushing portion 21, into the inside of the crusher main body 10. By crimping the incoming sample and serves to crush the sample together with the fixed crushing portion (21).

The second support plate 22a is formed in a substantially plate shape, and the upper end portion is rotatably coupled to one side of the upper end of the inside of the crusher main body 10 so that the lower end approaches the lower end of the fixed crushing part 21 so that the crusher main body ( 10) Rotates between the crushed position for crushing the sample flowed into and the standby position so that the crushed rock is rotated from the crushed position to be discharged to the outlet 12 of the main body.

The second support plate 22a provides an installation area of the second jaw plate 22b and allows the second jaw plate 22b to rotate so that the second jaw plate 22b of the fixed crushing portion 21 can be rotated. Together with the first set plate 21b serves to crush the harvest.

As described above, the second jaw plate 22b is formed in a plate shape in which a plurality of uneven parts are formed, and when the second support plate 22a is rotated by being coupled to the second support plate 22a, the first jaw plate is rotated together. Together with (21b) it also serves to crush the harvest.

Although not shown in the drawing, the rotational force providing means 23 may use a motor provided on one side of the excavator, that is, the power generated from the motor is transmitted to the rotating shaft connected to the belt, and the upper end is coupled to the rotating shaft. 2 serves to provide rotational force to the support plate (22a).

The gap adjusting means 24 includes a main body portion 24a, a support 24b which is coupled to one side of the main body portion 24a and the other side to be rotatably coupled to one side of the second support plate 22a, and a main body portion ( The other end of the elastic member 24c and the elastic member 24c installed inside the 24a and having one end supported by one side of the support 24b to apply an elastic force to the support 24b in the direction of the second support plate 22a. It is configured to include a nut member (24d) for adjusting the elastic force applied to the support (24b) while being supported in the forward and backward direction, the nut member (24d) is moved to the front and rear direction and the elastic force applied to the support (24b) By applying it serves to adjust the gap between the fixed crushing portion 21 and the movable crushing portion 22.

In addition, the gap adjusting means 24 further includes a toggle plate (not shown) whose ends are supported on one side of the main body portion 24a and one side of the second support plate 22a, although not shown in the drawings. It is preferable that the toggle plate (not shown) is broken when an overload acts on the movable crushing unit to prevent the movable crushing unit 22 from being broken or the rotating shaft or the like is deformed.

The watering device 30 is coupled to the front end of the body portion 31 and the body portion 31 is installed on the top of the fixed crushing portion 21 of the inner surface of the crusher body 10 to spray water supplied from the outside It includes a water spray nozzle 32, the fixed crushed portion 21 and the movable crushed portion 22 when the crushed the sample collected between the fixed crushed portion 21 and the movable crushed portion 22 Water is sprayed on to prevent dust from being generated when the sample is crushed.

The reinforcement plate 40 is formed in a substantially plate shape and is installed at one side of the inner surface of the crusher main body 10 to be contacted with the crusher, and the crusher as the crusher contacts or collides with the crusher main body 10. In this embodiment, the upper surface of the inner surface of the inner surface of the crusher body 10 to which the fixed crushing portion 21 is coupled, and the crusher body 10 are prevented from being damaged or broken in advance. It is installed on both sides of the inner surface.

The opening and closing means 50 is a shielding plate 51 installed at one side of the region corresponding to the outlet 12 of the crusher main body 10 and a control unit installed at one side of the excavator and electrically connected to the shielding plate 51 ( 52) and an operation unit 53 installed on one side of the excavator and electrically connected to the control unit 52, and serves to allow the excavation work and the crushing work to be performed in parallel while opening and closing the outlet 12.

The shielding plate 51 is an open position for opening the outlet 12 while the guide portion 51a formed on the outer surface of the crusher body 10 and a plurality of plate bodies formed in a substantially rectangular shape are coupled to each other and slide along the guide portion. It comprises a plate portion 52b for moving between the shielding position shielding the outlet 12 and the power means 52c connected to one side of the plate portion to provide power for sliding the plate, the crusher body 10 By selectively opening and closing the outlet (12) of the) serves to selectively perform excavation work or crushing work.

As described above, the control unit 52 is electrically connected to the operation unit 53 and the power means 52c of the shielding plate 51 so that when the open signal or the closing signal is applied from the control unit 53, the shielding plate is applied according to the applied signal. It serves to control the shielding plate 51 so that 51 can move between the open position and the shielding position.

4 is a view showing a state in which the shredding means is operated according to an embodiment of the present invention, Figure 5 is a view showing a state in which the opening and closing means is operated according to an embodiment of the present invention.

Referring to Figures 4 and 5 attached to the operation of the crusher 1 having a bucket function according to an embodiment of the present invention having such a configuration as follows.

First, when the sample is collected from the region to be collected using the excavation blade 14 formed in the crusher body 10, the collected sample is introduced into the crusher body 10.

The sample flowed into the crusher main body 10 is introduced between the fixed crushing portion 21 and the movable crushing portion 22, and as shown in FIG. 4, the second support plate 22a provides the rotational force providing means 23. As shown in FIG. The second jaw plate 22b is co-rotated while approaching the first jaw plate 21b while rotating from the stand-by position to the crushing position.

In this case, the sample interposed between the fixed crushing unit 21 and the movable crushing unit 22 is squeezed. The second crushing plate 22a is crushed by the pressing operation while repeating the above-described rotation operation. , The crushed harvest, that is, crushed stone falls in the direction of the outlet 12 of the crusher body (10).

At this time, while the shielding plate 51 of the opening and closing means 50 is located in the open position, the crushed stone is discharged to the outside through the outlet 12 of the crusher body 10.

On the other hand, in the case of the excavation work, the operator applies the shielding signal to the control unit 52 through the operation unit 53, so that the shielding plate 51 is moved to the shielding position as shown in Figure 5 of the crusher body 10 The outlet 12 is shielded, and the second support plate 22a of the movable crushing portion 22 is positioned at the standby position.

Thereafter, when the sample is collected from the region to be collected using the excavation blade 14 formed in the crusher body 10, the collected sample is introduced into the crusher body 10, as described above. As the outlet 12 of the c) is shielded by the shielding plate 51, the collected water introduced into the crusher main body 10 is accommodated in the crusher main body 10 without being discharged to the outside through the outlet 12.

6 is a cross-sectional view of a crusher having a bucket function according to another embodiment of the present invention, Figure 7 is a view showing a state in which a crusher having a bucket function according to another embodiment of the present invention is operated.

The basic configuration of the embodiment of Figure 6 is the same as the embodiment of Figures 2 to 5 but is formed in a structure that can remove the crushed stone deposited on the upper surface of the opening and closing means 50 'during the shredding operation in the process of crushing the collected material .

As shown in Fig. 6, in the present embodiment, the opening and closing means 50 'includes a shielding plate 51', an elastic portion (not shown), a locking means 53 ', a control portion 54' and an operation portion 55. ').

The shielding plate 51 ′ is rotatably coupled to one side of the outer surface of the crusher main body 10 so that the rear end is rotated in the up and down direction to shield the outlet 12 and an open position to open the outlet 12. Rotate between.

The elastic part (not shown) is interposed between the shielding plate 51 'and the outer surface of the crusher body 10 to apply an elastic force upward to the shielding plate 51' so that no external force is applied to the shielding plate 51 '. In this case, the shield plate 51 'serves to move to the shielding position.

The locking means 53 'is a locking body 53'a installed at a position corresponding to one side of the shielding plate 51' when the shielding plate 51 'is located at a shielding position among the outer surfaces of the crusher body 10. And a supporting rod 53'b which is drawn in or drawn out of the locking body 53'a, and is supported on one side of the shielding plate 51 'under the control of the controller 54'. It plays a role of performing an intermittent state that prevents the 51 'from being moved to the open position and a release operation of releasing the intermittent state.

In other words, the locking means 53 ′ performs the release operation while fixing the shielding position of the shielding plate 51 ′ shielding the crusher body 10 when performing the intermittent state and performing the release operation. In this case, as the shielding plate 51 'is rotated downward by the scratcher 60 to be described later, the crushed stone can be discharged to the outside through the outlet 12 of the crusher body 10 so that the crushing work can be performed. The operation of the locking means 53 ′ will be described in more detail with reference to FIG. 6.

In addition, the present embodiment further comprises a scratcher 60, the upper end of which is rotatably coupled to the lower end of the movable crushing part 22 and the lower end of which is elastically supported on one side of the upper surface of the shielding plate 51 '.

The scratcher 60 includes a coupling body 61 having an upper end rotatably coupled to a lower end of the movable crushing part 22, and an elastic extension 62 extending downwardly downward from the lower end of the coupling body 61. ), And a pressing portion 63 bent downward from the extended end of the elastic portion (not shown) and the lower portion is elastically supported on the upper surface of the shielding plate 51 ', and the movable crushing portion 22 Is moved from the crushed position to the standby position from one side of the upper surface of the shielding plate 51 'while allowing the crushed stone deposited on the upper surface of the shielding plate 51' to be removed from the upper surface of the shielding plate 51 ' Pressing the upper surface of the shielding plate 51 'serves to rotate the shielding plate 51' from the shielding position to the open position.

Here, the elastic extension part 62 is formed to be bent downward in the forward direction as described above, the elastic force is generated, and serves to transfer the generated elastic force to the pressing portion 63 downward.

The pressing unit 63 presses the upper surface of the shielding plate 51 'to allow the shielding plate 51' to rotate and to remove the crushed stone deposited on the upper surface of the shielding plate 51 '. Although not shown in the drawings, the reference numeral 63 may be moved along the guide groove formed on the upper surface of the shielding plate 51 'and stably moved on the upper surface of the shielding plate 51'.

Crusher 1 having a bucket function according to another embodiment of the present invention having such a configuration, when the operator wants to excavation work, if the operator applies a shielding signal to the control unit 54 ' 54 ′ causes the locking means 53 ′ to perform the intermittent state according to the applied shielding signal so that the shielding plate 51 ′ shields the outlet 12 of the crusher body 10, and accordingly the crusher body The collected material introduced into the 10 may be accommodated inside the crusher main body 10 without being discharged to the outside through the outlet 12.

On the other hand, when the shredding operation is to be performed, the operator operates the operation unit 55 'to apply an open signal to the control unit 54', and the control unit 54 'releases the locking means 53' according to the applied open signal. The intermittent state of the shielding plate 51 'according to the locking means 53' is released by performing the state.

Thereafter, when the movable shredding unit 22 is driven to shred the collected water introduced into the crusher main body 10, the pressurizing unit 63 of the scratcher 60 waits at the shredding position. As it rotates to the position, the lower end portion is in contact with the upper surface of the shielding plate 51 ', the other side from one side of the upper surface of the shielding plate 51', and more specifically, one side of the rear end from the one end of the upper surface of the shielding plate 51 '. While moving in the direction to remove the crushed stone deposited on the upper surface of the shielding plate (51 ').

In addition, the pressing portion 63 of the scratcher 60 pressurizes the upper surface of the shielding plate 51 'by the elastic force transmitted from the elastic extension portion 62 so that the shielding plate 51' is moved from the shielding position to the open position. To be rotated.

In other words, when the movable shredding portion 22 is located at the shredding position, the shielding plate 51 'is positioned at the shielding position, and when the movable shredding portion 22 moves to the standby position, the shielding plate 51' is positioned at the skipper. The crushed stone crushed by the crushing means 20 is discharged to the outside through the outlet 12 of the open crusher body 10 while being moved to the open position by the pressing portion 63 of the.

As such, the crusher 1 having the bucket function according to another embodiment of the present invention allows the crushed stone deposited on the upper surface of the opening and closing means 50 'to be removed during the crushing operation, and the crushed crushed crusher body By discharging through the outlet 12 of (10), it is possible not only to remove the crushed stone deposited on the upper surface of the shielding plate 51 'without separate removal work, but also to damage and breakage of other components according to the deposited crushed stone. There is a characteristic that can be prevented in advance.

Since the rest of the structure is the same as the above-described basic embodiment, the rest of the description will be omitted.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it is possible to make various modifications and variations without departing from the spirit and scope of the invention. Accordingly, the appended claims are intended to cover such modifications or changes as fall within the scope of the invention.

1: Crusher with bucket function 10: Crusher body
11: receiving space 12: outlet
13: coupling flange 14: excavator blade
20: shredding means 21: fixed shredding unit
21a: first support plate 21b: first jaw plate
22: movable crushing portion 22a: second support plate
22b: Article 2 Plate 23: Rotation force providing means
24: spacing means 24a: main body
24b: support 24c: elastic member
24d: nut member not shown: toggle plate
30: watering device 31: body
32: spray nozzle 40: reinforcement plate
50: opening and closing means 51: shielding plate
52: control unit 53: operation unit
50 ': opening and closing means 51': shielding plate
Not shown: Elastic part 53 ': Locking means
54 'control part 55' control panel
60: scratcher 61: combined body
62: elastic extension portion 63: pressing portion

Claims (6)

In the crusher having a bucket function to collect the collected material from the region to be collected or to crush the collected material,
A crusher body having a receiving space formed therein, an upper portion of which is opened to allow the sample to be introduced into the upper portion, and a discharge hole formed at one side of the lower surface;
The crusher main body is fixedly installed on one side of the inner wall of the crusher body and rotatably coupled to one side of the crusher main body facing the fixed crusher, and the lower end approaches the lower end of the fixed crusher body so that the crusher main body A movable crushing unit and a movable crushing unit rotating between a crushing position for crushing the collected water introduced into the standby position to rotate the crushed rock from the crushing position to the discharge port and one side of the crusher main body is installed A crushing means connected to a movable crushing unit, the crushing means including a rotational force providing means for providing a rotational force to the movable crushing unit;
It is installed on one side of the crusher body corresponding to the outlet, including opening and closing means for selectively opening and closing the outlet while moving between the open position for opening the outlet and the shielding position for shielding the outlet,
The opening and closing means is
A shielding plate having a distal end rotatably coupled to one side of an outer surface of the crusher body and rotating between the open position and the shielding position;
An elastic part interposed between the crusher main body and the shielding plate and applying an elastic force upwardly to the shielding plate; And
When the shielding plate is located in the shielding position of the outer surface of the crusher main body is installed in a position corresponding to one side of the shielding plate, the intermittent state to bind to one side of the shielding plate to prevent the shielding plate from moving to the open position, Crusher having a bucket function, characterized in that it comprises a locking means for performing a release state for releasing the interrupted state.
delete The method of claim 1,
The crusher having a bucket function, characterized in that it is installed on one side of the crusher main body, further comprising a watering device for injecting a fluid to the collected water introduced into the crusher body.
The method of claim 1,
Crusher having a bucket function, characterized in that it further comprises a reinforcement plate is installed on one side of the inner surface of the crusher body to be brought into contact with the sample.
delete The method of claim 1,
When the upper end is rotatably coupled to the lower end of the movable crushing portion, the lower end is elastically contacted to one side of the upper surface of the shield plate, when the movable crushing portion is rotated from the crushing position to the standby position, the lower end is on the upper surface of the shielding plate The bucket function further comprises a scratcher to move from one side of the upper surface of the shielding plate to the other side in contact with the other side and to press the upper surface of the shielding downward to rotate the shielding plate downward. Having crusher.

Images