KR101805751B1 - Inlet open & close device of mechanical pump - Google Patents

Abstract

The present invention provides an opening and closing device for opening and closing a suction part of a mechanical pump. The opening and closing device for opening and closing the suction part of the mechanical pump according to the present invention comprises: an opening and closing member which is provided on the outer surface of a pump body and has a lock for locking/unlocking the suction part as an end part of the suction part is engaged and rotated; and an opening and closing operation member which rotates the lock from a locked position to an unlocked position depending on the lifting height of a piston provided on the pump body. The opening and closing operation member comprises: a first moving bar which is installed on one side of an upper end of the pump body to be movable up and down, is lifted by the piston moving upward, and descends by its own weight when the piston moves down; a second moving bar which is disposed on one side of an upper end of the pump body in parallel with the first moving bar and is movably installed in a vertical direction; a wire member which is connected to a lower end of the second moving bar at one end, is connected to a rotary shaft connected to the lock at the other end, and rotates the rotary shaft in the unlocking direction of the lock by the upward movement of the second moving bar; and a clutch member which connects the first moving bar and the second moving bar when the lock is to be unlocked. The suction part opening and closing device of the mechanical pump according to the present invention has an automatic opening and closing control means capable of unlocking the lock of the opening and closing member directly by a crane driver operating a crane.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a mechanical pump,

The present invention relates to a mechanical pump.

Generally, on the construction site, the foundation excavation work is done in order to put the pile on the ground during the foundation civil works, and when the excavation work of the ground is completed, concrete work is done inside the excavated ground.

In order to perform the ground excavation work as described above, a drill hole is formed using an excavating machine such as an auger machine, and a pile foundation is inserted or installed in the drill hole. At this time, Since slime such as sand and foreign matter and groundwater remains, if not removed, it is not only difficult to construct the pile foundation, but also causes defects and causes insufficient construction.

Therefore, in order to remove the slime existing inside the excavation hole, a mechanical pump is installed in a device such as a crane, and then the mechanical pump is inserted into the excavation hole to remove the slime.

Such a conventional mechanical pump is disclosed in Korean Patent Registration No. 10-464234.

However, in order to unlock the opening / closing member provided in the conventional mechanical pump, there is a problem that it is inconvenient for the operator to rotate the rod constituted by the opening / closing control member by directly rotating the rod, and in the process, the operator often turns the sludge over The working environment was not good.

Korea Patent Office Registration No. 10-0464234 (Registered on December 21, 2004)

An object of the present invention is to provide a suction unit opening / closing device for a mechanical pump having an automatic opening / closing control means capable of directly releasing a lock of an opening / closing member by a crane driver operating a crane.

The problems to be solved by the present invention are not limited thereto, and other matters not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided an air conditioner comprising: an opening / closing member provided on an outer surface of a pump body and having a catch for locking / unlocking the suction portion by engaging an end portion of the suction portion; And an opening / closing member for pivoting the pawl from a locked position to a released position in accordance with an ascending / descending height of a piston provided on the pump body, Wherein the opening / closing operation member is installed on one side of the upper end of the pump body so as to be movable up and down, and is lifted by the upwardly moving piston and descends by its own weight when the piston is moved downward; A second moving bar disposed on one side of an upper end of the pump body in parallel with the first moving bar and movably installed in a vertical direction; And the other end is connected to a rotary shaft connected to the pawl, and the wire bar is provided to rotate the rotary shaft in the unlocking direction of the pawl by the upward movement of the second movable bar, ; And a clutch member interconnecting the first movement bar and the second movement bar when the lock is to be unlocked. The apparatus for opening and closing a suction port of a mechanical pump for slime removal may be provided.

Further, the clutch member may include a lower engaging pin and a upper engaging pin, which are spaced apart from each other in the vertical direction on one surface of the first moving bar. A main clutch rotatably installed on one surface of the second moving bar and configured to be engaged with the lower engaging pin; And an auxiliary clutch rotatably installed on one surface of the second moving bar so as to be positioned at an upper end of the main clutch and configured to be engaged with the upper engaging pin.

Further, the main clutch does not engage with the lower engaging pin when the first moving bar is moved from the highest height to the lowest height and when the first moving bar moves from the lowest height to the highest height, And the lower end of the lower latch when the latch is moved from a neutral height between the lowest height and the lowest height to a lower latch height than the neutral height.

The second shifting bar may further include a first stopper that interrupts the upward rotation of the main clutch engaged with the lower engaging pin so that the main clutch is retained in the lower engaging pin.

The second movement bar may further include a second stopper for restricting the downward rotation of the auxiliary clutch.

In addition, the second moving bar may be moved upward together with the first moving bar in a state where the main clutch is engaged with the lower engaging pin.

The main clutch includes a first protruding portion, which is pivotally connected to the second moving bar and has a concave curved surface on an upper surface and a concave curved surface on an upper surface so as to protrude at one end to be caught by the lower retaining pin. And a second protrusion protruding from a side opposite to the first protrusion and hooked to one side of the auxiliary clutch.

According to the embodiment of the present invention, a crane driver who operates a crane can automatically open a suction portion by adjusting the height of the cylinder up and down, thereby achieving a remarkable effect that a slime removal operation can be performed without a separate operator.

The effects of the present invention are not limited to the above-mentioned effects, and the effects not mentioned can be clearly understood by those skilled in the art from the present specification and the accompanying drawings.

1 is a perspective view showing a mechanical pump for slime removal according to an embodiment of the present invention.
2 is a front view of the mechanical pump shown in Fig.
3 is a side view of the mechanical pump shown in Fig.
4 is a cross-sectional view of the mechanical pump shown in Fig.
5 is a view showing a state where the first movable bar is located at the highest height.
6 is a view showing a state in which the first moving bar moves downward to the lowest position.
7 is a view showing the operating states of the main clutch and the auxiliary clutch when the first traveling bar is moved from the highest height to the lowest height.
FIG. 8 is a view showing a stepwise process of engaging the main clutch with the lower engaging pin.
9 is a view for explaining that the suction portion is opened.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated in the drawings and will be described in detail in the detailed description. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout the specification and claims. The description will be omitted.

FIG. 1 is a perspective view showing a mechanical pump for slime removal according to an embodiment of the present invention, FIGS. 2 and 3 are a front view and a side view of the mechanical pump shown in FIG. 1, and FIG. 4 is a sectional view of a mechanical pump .

1 to 4, a mechanical pump according to the present invention includes a pump body 100, a suction unit 110, a pressure generating member 120, a lid 130, an opening and closing member 140, And an opening / closing operation member (200).

The pump main body 100 has a cylindrical shape with an upper and a lower opening. A cylinder hole is formed therein. A support frame 101 protruded upward from the upper surface of the pump main body 100 is formed. The support frame 101 is formed with a circular through-hole passing vertically through the center of the support frame 101, and the piston rod 121, which will be described later, is inserted into the through-hole.

A rib 102 having a through hole at its center is formed on the outer surface of the pump main body 100 so that the rotation shaft 141 of the opening and closing member 140 is inserted into the through hole of the rib 102, 100). The hinge coupling portion 111 is formed at the hinge coupling portion 111 of the hinge coupling portion 111 of the suction unit 110 to be described later, 103, and the suction unit 110 is coupled to the pump body 100 so as to rotate.

The suction unit 110 is rotatably coupled to the lower surface of the pump body 100. The suction part 110 includes an inlet 112, a hinge coupling part 111, and a locking piece 113, which are vertically penetrated.

The hinge coupling part 111 is formed with a through hole and the hinge coupling part 111 is hinged to the hinge supporting part 103 formed on the pump main body 100. The engaging piece 113 is provided on the outer surface of the suction portion 110. [ The engaging piece 113 is formed with an engaging groove 113a having a predetermined width and elongated in the transverse direction so as to pass through the engaging groove 113a and the engaging piece 113a is inserted into the engaging piece 113, The suction unit 110 is engaged with the opening and closing member 140 and is coupled to the lower end of the pump body 100 by being placed on the upper surface of the catch 142.

The lid 130 is formed in a substantially plate shape so that one side thereof is hinged to one side of the inlet 112 of the suction unit 110 to open / close the inlet 112.

The pressure generating member 120 mainly includes a piston rod 121, a coupling portion 122, and a piston 123. A vacuum force is generated inside the main body space portion 104 formed on the upper side of the lid 130 by the upward and downward movement of the piston rod 121 to open the lid 130 and to open the lid 130 through the inlet port 112 of the suction portion, Thereby providing a vacuum force that allows residual residues to flow into the pump body 110

The piston rod 121 is formed in a rod shape protruding upward through a through hole formed in the support frame 101 of the pump body 100 and has a coupling ring 126 coupled to the crane at an upper end thereof.

At the lower end of the piston rod 121, a coupling portion 122 is formed. One side of the engaging portion 122 is engaged with the end of the piston rod 121, and the other side thereof is engaged with the piston 123, which will be described later.

The piston rod 121 is provided with a scale 129. The scale 129 is provided so that the crane operator can visually confirm the descending position of the piston 123 (the position where the first moving bar has reached the stopping height). That is, the scale 129 can be positioned on the aperture of the support frame 101 at the position where the first movable bar 210 has been lowered to the engagement height (shown in Fig. 7).

The piston 123 is formed in a substantially disc shape and is fitted to the inner wall surface of the pump body 100 and is coupled to the lower end of the coupling portion 122 and flows in the same direction as the piston rod 121.

That is, when the piston rod 121 is moved upward by the crane, the piston 123 also flows upward, and a vacuum is formed in the main body space portion 104. The lid 130 hinged to the upper surface of the suction unit 110 by the vacuum force is rotated upward to be opened. In this state, since the inlet 112 is opened, the residues existing in the excavation soil through the inlet 112 are introduced into the main body space 104 by the vacuum pressure.

When the flow of the piston rod 121 is stopped in the above state, the degree of vacuum of the main body space portion 104 is lowered, so that the lid 130 is pivoted downward by gravity. Therefore, the inlet 112 is clogged, and the main body space 104 has residues introduced from the inside of the excavation soil. Then, the residue is discharged to the outside.

The discharge of the residue is discharged by opening the suction unit 110, and the suction unit 110 is locked / unlocked by the opening / closing member 140.

The opening and closing member 140 is integrally formed at the lower end of the rotary shaft 141 and rotatably coupled to the outer surface of the pump body 100. The upper and lower sides of the opening and closing member 140 are rectangular, And the other side is connected to the pump body 100 side to transmit the original recovery force to the rotation shaft 141. The lock 142 is engaged with the coupling groove 113a of the rotation shaft 141, And an elastic spring.

The width and the rectangular shape of the catch 142 are formed to be relatively smaller than the engaging recess formed in the catching piece 113 so that the lower end of the catch 142 is inserted through the coupling recess. Here, the length of the catch 142 in the rectangular transverse direction is greater than the width of the engaging groove 116.

When the pawl 142 is fully inserted into the engaging groove 113a by being inserted into the engaging groove 113a from the lower end of the pawl 142, when the pawl 142 is rotated a predetermined amount, 142 and the engaging pieces 113 are staggered from each other, the suction unit 110 is coupled to the pump body.

When the suction unit 110 is to be opened, the lock 142 and the lock piece 113 must be unlocked. When the rotation shaft 141 is rotated in a predetermined direction, (142) is rotated in a predetermined direction. The catch 142 is disposed in the transverse direction and is integrated with the direction of the engaging groove 113a of the catch piece 113 formed in the transverse direction so that the catch piece 113 can be released by the catch 142. [ The suction part 110 is rotated by a predetermined amount about the hinge axis by the gravity acting on the suction part 110 so that the lower end of the pump body 100 is opened and the residual part Is discharged to the outside.

The opening and closing member 200 is provided to pivot the catch 142 from the locked position to the released position in accordance with the lifting height of the piston 123.

The opening and closing member 200 may include a first moving bar 210, a second moving bar 220, a wire member 230, and a clutch member 240.

FIG. 5 is a view showing a state where the first movable bar is located at the highest height, and FIG. 6 is a view showing a state in which the first movable bar is moved downward to the lowest level.

5, the mechanical pump 10 is lifted by a crane (not shown). At this time, since the piston 123 is moved to the upper portion of the pump body 100, Is moved to the highest height. 6 shows a state in which the mechanical pump 10 is placed on the ground, the crane wire is lowered, and the piston 123 is lowered. At this time, the first moving bar 210 is moved to the lowest position together with the descent of the piston 123.

The first movable bar 210 is installed on one side of the upper end of the pump body 100 so as to be movable up and down. The first bar 210 includes an outer bar 212 and an inner bar 214. The outer bar 212 is located on the outside of the pump body 100 and the inner bar 214 is located on the outer bar 212 And is located inside the pump main body 100. [0053] As shown in Fig.

The end of the inner bar 214 is brought into contact with the circular ring member 128 provided on the upper surface of the piston 123 when the piston 123 is moved upward. Although the end of the inner bar is illustrated as being in contact with the circular ring member in this embodiment, if necessary, it can be configured to directly contact the upper surface of the piston without the circular ring member.

The first movable bar 210 may be lifted by the lifting piston 123 and may be shaped to descend by its own weight when the lifting piston 123 moves downward.

A guide bracket 290 for guiding the first movement bar 210 and the second movement bar 220 up and down is installed on the upper surface of the pump main body 100. [

The second movable bar 220 may be disposed alongside the first movable bar 210 on one side of the upper end of the pump body 100. The second movement bar 220 may be installed on the guide bracket 290 so as to be movable in the vertical direction. A stopper 222 is provided at the upper end of the second movement bar 220 and a descending height of the second movement bar 220 is limited by the first stopper 222.

The wire member 230 may be connected to the rotation shaft 141, one end of which is connected to the lower end of the second moving bar 220 and the other end is connected to the catch 142. The wire member 230 can be provided to rotate the rotation shaft 141 in the unlocking direction of the lock 142 by the upward movement of the second movement bar 220. [ For reference, the pump main body 100 may be provided with a wire roller 238 for changing the direction of the wire member. The wire member 230 may be connected to the rotating shaft 141 through a separate connecting bar.

The clutch member 240 is provided to interconnect the first and second travel bars 210 and 220 when the lock 142 is to be unlocked. The clutch member 240 includes a top engaging pin 242 and a bottom engaging pin 244 which are spaced apart from each other in the vertical direction on one surface of the first moving bar 210, And a main clutch 250 and an auxiliary clutch 260, When viewed from the front, the upper latching pin 242 may be disposed closer to the second shift bar 220 than the lower latching pin 244.

The main clutch 250 is configured to engage with the lower engaging pin 244 when the first moving bar is moved upward.

When the first moving bar 210 moves down from the highest height (see FIG. 5) to the lowest height (see FIG. 6) and when the first moving bar 210 moves up from the lowest height to the highest height The first movement bar 210 is moved from the lowermost height to the neutral height (the height of FIG. 8B) and then moved back to the engagement height (the height of FIG. 8C) without being caught by the lower engagement pin 244 The lower latching pin 244 is engaged. Here, the neutral height is higher than the latching height and lower than the highest height.

The second movement bar 220 is provided with a first stopper (not shown) for blocking the upward rotation of the main clutch 250 engaged with the lower end stop pin 244 so that the main clutch 250 is retained in the lower end stop pin 244 228 are provided.

The auxiliary clutch 260 is located above the main clutch 250. The auxiliary clutch 260 is rotatably coupled to the second moving bar 220. The auxiliary clutch 260 is shaped so that one end is caught by the upper engagement pin 242. The auxiliary clutch (260) has a latching jaw for receiving the second projection (256) of the main clutch (250).

The second movement bar 220 is provided with a second stopper 229 for restricting the downward rotation of the auxiliary clutch 260.

The movement of the first movable bar 210 is achieved by a work of a crane operator lifting and lowering the crane.

8, the second moving bar 220 may be moved up with the first moving bar 210 in a state where the main clutch 250 is engaged with the lower end locking pin 244.

Referring again to FIG. 5, the main clutch 250 is rotatably hinged to the second moving bar 220. The main clutch 250 has a first protruding portion 254 protruding from one end and having a convex curved surface on the upper surface and a concave curved surface on the lower surface so as to be caught by the lower end stop pin 244, And a second protrusion 256 which is engaged with one side of the clutch.

7 is a view showing the operating states of the main clutch and the auxiliary clutch when the first traveling bar is moved from the highest height to the lowest height.

7, when the first moving bar 210 is moved from the highest position to the lowest position, the upper engaging pin 244 pushes the main clutch 250 while passing through the main clutch 250. At this time, (Clockwise), and the second projection 256 is caught by the engagement jaw of the auxiliary clutch 260 (the main clutch is in the locked state). Therefore, in a state in which the main clutch 250 is locked by the auxiliary clutch 260, the operation of turning upward in the counterclockwise direction is blocked by the center of gravity. In this state, the lower end stop pin 244 is not caught by the main clutch 250 even if the first movable bar 210 moves upward. In other words, when the first movable bar 210 is moved from the highest height to the lowest level, the main clutch 250 is in a locked state, and at this time, the first engaging bar 210 is not caught by the lower engaging pin 244.

FIG. 8 is a view showing a stepwise process of engaging the main clutch with the lower engaging pin.

8, when the first moving bar 210 is moved from the lowest level to the neutral height through the crane operation, the upper latching pin 242 rotates the auxiliary clutch 260 upward (counterclockwise) The main clutch 250 is unlocked (FIGS. 8A and 8B). When the main clutch 250 is unlocked, the lower engaging pin 244 passes through the main clutch 250. The unlocked main clutch 250 is naturally rotated upward (counterclockwise) by the center of gravity. When the first shift bar 210 is moved up and down to the stopping height (C in FIG. 8) in a state where the main clutch 250 is unlocked, the lower end stop pin 244 is moved The first moving bar 210 and the second moving bar 220 are moved upward together with the first protruding portion 254 engaged with the first protruding portion 254 (FIG. 8D).

9, the wire member is pulled upward by the upward movement of the second movable bar 220, whereby the rotary shaft 141 is rotated in the unlocking direction of the catch 142. Thus, the suction unit 110 is rotated around the hinge shaft in a predetermined direction, so that the lower end of the pump body 100 is opened, and the residue remaining in the main body space unit 104 is discharged to the outside.

For example, when the first moving bar 210 is moved to the lowest position, the lower engaging pin 244 is disengaged from the main clutch 250, and the main clutch 250 is rotated in the locked state by the upper engaging pin 242 (State C in Fig. 7).

The operation of the mechanical pump 100 according to the preferred embodiment of the present invention is as follows.

A mechanical pump 100 is installed in an equipment such as a crane while the excavator is excavated on the ground by the excavator, and the mechanical pump 10 is put into the excavator. When the crane wire is further lowered while the suction unit 110 is in contact with the bottom surface of the excavator, the piston 123 of the pump main body 110 is positioned at the lower end of the main body space 104. In this state, The piston 123 is moved upward while the piston rod 121 connected to the piston rod 121 is lifted and a vacuum force is generated inside the body space 104 formed on the cover 130, The lid 130 is opened by the vacuum force and the residue (slime) remaining in the excavation ground is introduced into the pump main body 110 through the inlet 112 of the suction unit 110.

When the piston 123 is moved by the stroke distance corresponding to the uppermost side of the pump body 100, no vacuum force is applied and the lid 130 is rotated by gravity to close the inlet port 112. The mechanical pump 10 is lifted from the excavation hole by using a crane and placed on a slime reservoir (not shown) located on the ground while the inlet 112 is blocked by the lid 130.

Thereafter, the crane operator moves the first moving bar 210 from the lowest height (C in Fig. 7) to the neutral height (B in Fig. 8) in order to discharge the residue introduced into the main body space portion 104 to the outside. The lower end latching pin 244 is moved downward by releasing the lock of the main clutch 250 and releasing the crane wire again to lower the latching height to the latching height (FIG. 8C) (Step C in FIG. 8) when the crane wire is positioned below the first protrusion 254 of the crane 250 (FIG. 8C). The crane operator displays a scale 129 (shown in Figs. 1 and 2) on the piston rod 121 to detect the rising position of the piston 123 (the position where the first moving bar has reached the neutral height) and the lowering position The position at which it has descended to the engagement height) can be more clearly controlled.

When the mechanical pump 10 is lifted up to a height at which the suction unit 110 is separated from the ground, the crane rotates in the unlocking direction when the weight of the suction unit 110 So that the lower end of the pump body 9100 is opened, and the residue remaining in the main body space portion 104 is discharged to the outside.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

100: pump main body 110:
120: pressure generating member 130: cover
140: opening / closing member 200: opening / closing operation member

Claims (7)

An opening and closing apparatus for opening and closing a suction portion of a mechanical pump,
An opening / closing member provided on an outer surface of the pump main body and having a catch for locking / unlocking the suction portion by a rotation operation of an end portion of the suction portion; And
And an opening / closing member for pivoting the pawl from a locked position to a released position in accordance with an ascending / descending height of a piston provided on the pump body;
The opening / closing operation member
A first moving bar which is installed on one side of an upper end of the pump body so as to be movable up and down and which is lifted by the upwardly moving piston and descends by its own weight when the piston is moved down;
A second moving bar disposed on one side of an upper end of the pump body in parallel with the first moving bar and movably installed in a vertical direction;
And the other end is connected to a rotary shaft connected to the pawl, and the wire bar is provided to rotate the rotary shaft in the unlocking direction of the pawl by the upward movement of the second movable bar, ; And
And a clutch member interconnecting the first movement bar and the second movement bar when the lock is to be unlocked. The method according to claim 1,
The clutch member
A lower engaging pin and a upper engaging pin located on one surface of the first moving bar and spaced apart from each other in a vertical direction;
A main clutch rotatably installed on one surface of the second moving bar and configured to be engaged with the lower engaging pin; And
And an auxiliary clutch rotatably mounted on one surface of the second moving bar so as to be positioned at an upper end of the main clutch and configured to be engaged with the upper engaging pin. 3. The method of claim 2,
The main clutch
When the first movement bar is moved from the highest height to the lowest height and when the first movement bar is moved from the lowest height to the highest height, the first movement bar is not engaged with the lower end engagement pin, And is configured to be caught by the lower latching pin when the latching pin is moved from a neutral height to a latching height lower than the neutral height. The method of claim 3,
Further comprising a first stopper for blocking the upward rotation of the main clutch engaged with the lower engaging pin so that the main clutch is retained in the lower engaging pin, . The method of claim 3,
The second movement bar
And a second stopper for restricting the downward rotation of the auxiliary clutch. The method of claim 3,
The second moving bar
Wherein the main clutch is lifted together with the first moving bar in a state in which the main clutch is engaged with the lower engaging pin. The method of claim 3,
The main clutch
A first projecting portion which is pivotally connected to the second movement bar and has a curved surface with a concave curved surface on an upper surface and a concave curved surface on an upper surface so as to protrude at one end to be caught by the lower retaining pin; And
And a second protrusion protruding from a side opposite to the first protrusion and hooked to one side of the auxiliary clutch.

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