JP3093931U - Concrete injection equipment - Google Patents

Abstract

(57) [Problem] To provide a concrete press-fitting device in which a rotating shaft is maintained at a correct position and a pressing force to a shutter side is excellent. SOLUTION: In a concrete press-fitting device, the opening and closing state of a shutter 10 is determined by a pressing force due to a contact between a washer 14 through which a bolt 8a of a rotating shaft 8 is inserted and a spring washer 15 and a forward bent piece 11b of a stopper body 11. It is maintained by abutment on the side portion 4 a of the one side flange 4 provided on the outside of the plate 3 or the outside surface of the connection pipe 6.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

  The present invention is a concrete for supplying ready-mixed concrete into a formwork at a construction site. The present invention relates to a press-fitting device.

[Prior art]

[0002]   Conventionally, various types of press-fitting devices have been developed for this type of concrete press-fitting device. ing. For example, the device disclosed in Japanese Patent No. 2764793 is known. However, it has the following defects.

[0003]

[Patent Document 1]   Japanese Patent No. 2764793

[0004]   In the patent, the shutter is kept open / closed outside the mounting plate. A lever that opens and closes the shutter is attached to the protruding rotation axis to open and close the shutter. To maintain the spring force of the spring, the stopper locked to the shutter, and the lever It is held by its own weight. Then, attach the shutter to the inner surface of the mounting plate. The spring force of the spring is used to adjust the strength of sliding contact.

[0005]   However, in the case of the above-mentioned patent, since the rotating shaft has a simple shaft structure, There is a defect that the holding power is insufficient and the accurate open / closed state cannot be maintained. In addition, in the above patent Therefore, the lever of the rotating shaft is permanently attached to the end of the rotating shaft. There is a defect that the lever is an obstacle to work at work sites and lacks stability in work. is there. Moreover, in the above patent, there is a stopper for opening and closing inside the plate for mounting. Since the bulge is protruding, lumps of ready-mixed concrete adhere to it, and the shutter The shutter open / closed, causing a shutter failure or closing the shutter. There are things that do not happen.

[0006]

[Problems to be solved by the device]

  The present invention has been made in view of the above problems, and the rotation axis is maintained at the correct position. Due to its excellent pressure force on the shutter side, it is present at the work site during its rotation operation. Double-sided ratchet wrench can be used, and a stopper for opening and closing is inside the plate. Shutter and plate failure without sticking out lumps of ready-mixed concrete without protruding The purpose is to provide an excellent concrete press-fitting device that eliminates such problems.

[0007]

[Means for Solving the Problems]

  In order to achieve the above object, the first invention is to form a concrete casting formwork. A play with a flange that fits into the mounting hole while recessing from the concrete pouring surface And a pressure inlet having an inner peripheral wall inclined upward is formed in the plate. The connecting pipe arranged at the same inclination angle as the inclined inner peripheral wall is fixed to the outside of the plate, A plate is provided with a shutter of a size that slidably contacts the inside of the plate to block the pressure inlet. It has a screw part that protrudes outward so that it is orthogonal to the plate through the bearing provided in It is pivotally attached to the inner end of the bolt that constitutes the rotary shaft, and is attached to the rotary shaft of the plate. Install a washer and spring washer to adjust the crimping force of the The spring washer and the washer with the rotary shaft bolt inserted are brought into contact with the ejected bearing. The spring washer and the washer against the bearing side with a nut, and place the upper part between the nuts with a small Stand up with a support plate that is a convex piece interposed, and attach the front bending piece to the outer surface of the plate slightly. Arrange them with a gap in between, and put the rear bent piece on the outer end of the bolt through the nut for rotation. The upper small protrusion of the support plate in the opening of the belt-shaped part in the middle of the stopper body A nut for rotation is attached to the outer end of the rotating shaft that is inserted into the plate and projects to the outside of the plate. Is attached to the turning nut, and the mouth is attached to the turning nut. Synchronize the bolt, shutter, and stopper body by fitting and rotating the nut part Use a double-ended ratchet wrench to By turning, the front bent piece of the stopper body is provided on the outside of the plate. Rotate it so that it abuts the side surface of the side flange or the outer surface of the connecting pipe. Therefore, the open / closed state of the shutter is maintained, and the open / closed state of the shutter is maintained by The pressing force due to the contact between the washer and the spring washer that have been inserted through the rotating shaft bolt, and the stopper The front bending piece of the body is provided on the outside of the plate on one side of the flange or It is characterized in that it is maintained by abutting on the outer surface of the connecting pipe.

[0008]   The second invention is that the periphery of the shutter is formed as a blade-like taper. Is characterized by.

[0009]   A third invention is that the outer peripheral surface of the rotating shaft of the bearing, which penetrates and is fixed to the plate, and the bearing. It is characterized by filling the space with the inner peripheral surface with a lubricant such as grease. It

[0010]

[Action]

  According to the first invention, the rotation nag is provided at the outer end portion of the rotation shaft protruding to the outside of the plate. The rotation nut is detachably attached to the rotation nut, and the rotation nut is provided. Align the mouth of the and rotate the nut to rotate the bolt, shutter and stopper By using a double-ended ratchet wrench that synchronizes with, by the rotation axis of this bolt, Front side bent piece of stopper body is provided on the outside of the plate Of the connection pipe or the outer surface of the connecting pipe, and the shank is rotated accordingly. It keeps the open / closed state. In other words, opening and closing the shutter like this Is maintained by the pressing force due to the contact between the washer and the spring washer, through which the bolt of the rotating shaft is inserted, The front bent piece of the stopper body is provided on the outer side of the plate on one side or Since it is maintained by abutting on the outer surface of the connecting pipe, the rotating shaft is It is firmly maintained and the pressing force on the shutter side is excellent. Also, during the turning operation, The double-sided ratchet wrench that exists at the work site can be used for excellent convenience. Shi Even if the stopper for opening and closing does not protrude inside the plate, It is excellent in that the plate and shutter will not be broken because no lumps of toner will adhere. It becomes a concrete press-fitting device.

[0011]   According to the second invention, the edge of the shutter is formed with a blade-like tapered portion. Since there is no friction resistance with the fresh concrete when opening and closing, Bending can be prevented.

[0012]   According to the third invention, a grease is formed in the space between the outer peripheral surface and the inner peripheral surface of the rotating shaft of the bearing. Since the lubricant such as grease is filled, the rotating shaft can rotate efficiently.

[0013]

[Embodiment of device]

  Embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows the concrete according to the present invention. 2 is a perspective view of the press-fitting device, FIG. 2 is a side view in which the same portion is cut away, and FIG. 3 omits the same portion. 4 is a rear view showing the operating state of the shutter.

[0014]   In the figure, 1 is for placing concrete for constructing a concrete building. It is a mold, and a rectangular mounting hole 2 of a predetermined size is formed in this mold 1. As shown in the drawing, the attachment hole 2 has a flange which is fitted in a state of being recessed from the concrete pouring surface. A plate 3 with a flange 4 is constructed.

[0015]   As shown in the figure, the plate 3 has an inclination upward with respect to the plate 3. The pressurizing port 5 having a circular inner peripheral wall is bored, and the inner peripheral wall of the pressurizing port 5 is inclined. The reason is that the concrete supplied into the formwork 1 is filled almost upward. Then, the internal pressure is prevented from increasing due to the lateral supply as in the conventional case, and This is because the fresh concrete of the above is smelted and filled.

[0016]   The plate 3 is slidably contacted with the inside of the plate 3 to block the pressure inlet 5. A shutter 10 is provided. Specifically, this shutter 10 plays The bearing 7 provided on the carriage 3 is projected outward so as to be orthogonal to the plate 3, It is pivotally attached to the inner end portion of a bolt 8a that constitutes the rotary shaft 8 having the jagged portion 8c.

[0017]   A washer for adjusting the pressing force of the shutter 10 is attached to the rotary shaft 8 of the plate 3. 14 and a spring washer 15 and nuts 8b and 8b are provided, respectively. The washer 14 in which the bolt 8a of the rotating shaft 8 is inserted into the bearing 7 protruding outward from The spring washer 15 is brought into contact with the spring washer 15. In addition, the washer 14 and the spring washer 15 are It is pressed against the bearing 7 side via the gutters 8b, 8b.

[0018]   Then, a support plate 11a having a small convex portion on the upper side is interposed between the nuts 8b and 8b. And the front bent piece 11b is provided on the outer surface of the plate 3 with a slight gap. And the rear bending piece 11c is attached to the outer end of the bolt 8a. The opening of the intermediate strip of the stopper body 11 which is attached and fixed through the stopper portion 13. The upper small convex piece of the support plate 11a is fitted into the portion 11e.

[0019]   On the other hand, a nut for rotation is attached to the outer end of the rotating shaft 8 protruding to the outside of the plate 3. 13 is provided, and is detachably attached to the turning nut portion 13 and has a turning nut. The nut portion 13 is rotated by fitting the mouth portion 12a of the bolt portion 13 into the bolt 8a. And double-ended ratchet lens for synchronizing the shutter 10 and the stopper body 10 Ji 12 should be used.

[0020]   This double-sided ratchet wrench 12 is used to rotate the bolt 8a to make a stop. The front bent piece 11b of the par body 11 is provided on the outside of the plate 3 on one side. The side 4a of the lunge 4 or the outer surface of the connecting pipe 6 is rotated so as to abut, and Accordingly, the open / closed state of the shutter 10 is maintained.

[0021]   That is, in order to maintain the open / closed state of the shutter 10, the bolt 8a of the rotary shaft 8 is inserted. The pressing force due to the contact between the washer 14 and the spring washer 15 that have passed through the front of the stopper body 11 Side portion of the flange 4 on one side provided on the outside of the plate 3 with the bending piece 11b It is maintained by abutting against the outer surface of 4a or the connecting pipe 6.

[0022]   The end of the connecting pipe 6 is provided with fresh concrete from a supply source (not shown). It is connected to the concrete pumping pipe to be supplied, and the bearing 7 has an outer peripheral surface of the rotating shaft 8 and a shaft. A filling tool 7b for filling a lubricant such as grease in a space 7a with the inner peripheral surface of the receptacle 7. There is. Further, 16 is a brim-shaped support tool.

[0023]   Here, a method of using the concrete press-fitting device of the present invention will be described. Concrete pouring By fitting the plate 3 into the mounting hole 2 of the installation form 1, the inner surface of the plate 3 is The concrete press-fitting device of the present invention is installed in a state where it is recessed from the contact surface. So Then, it is sent from the concrete supply source to the end of the connecting pipe 6 provided in the inclined pressure inlet 5. Connect a concrete pressure pipe (not shown) to supply ready-mixed concrete There is.

[0024]   Further, the mouth portion 12a of the double-sided ratchet wrench 12 is provided on the rotation shaft 8 for rotation. The shutter 10 is opened by fitting the shutter 13 to rotate the rotating shaft 8. The side portion 4a of the flange 4 on one side is brought into contact with the side portion 4a. In this open state, raw concrete The mold is filled into the mold 1 from the pressure inlet 5 along the inclined connecting pipe 6.

[0025]   When the ready-mixed concrete is sufficiently filled in the mold 1, the double-sided ratchet tray is The shutter 12 is rotated in the opposite direction to bring the shutter 10 into contact with the outer surface of the connecting pipe 6. Then, the shutter 10 is brought into sliding contact with the inner surface of the plate 3 to close the pressure inlet 5.

[0026]   In this way, the bolt 8a of the rotary shaft 8 is inserted to maintain the open / closed state of the shutter 10. The pressing force by the contact between the washer 14 and the spring washer 15 and the front of the stopper body 11 The bent piece 11b is provided on the outside of the plate 3, and the side portion 4 of the flange 4 on one side is provided. It is firmly maintained by a contact with the outer surface of the connection pipe 6 or the connecting pipe 6.

[0027]

[Effect of device]

  The present invention having the above configuration has the following effects.   According to the present invention, the opening / closing state of the shutter is maintained by inserting the bolt of the rotating shaft. The pressing force generated by the contact between the washer and the spring washer, and the front bending piece of the stopper body is played. Abut on one side of the flange on the outside of the connector or on the outside of the connecting pipe It is firmly maintained by. Therefore, the rotation axis is maintained in the correct position and accurately. Therefore, the pressing force to the shutter side is excellent.   According to the present invention, the rotating operation on the rotating shaft is performed by the double-sided lens existing at the work site. You can use the checker wrench, and there are some that are very convenient. Also, this double-sided ratchet The stock wrench can be removed when it is not needed and does not interfere with the work site. Is.   According to the present invention, the stopper for opening and closing does not protrude inside the plate. Therefore, lumps of ready-mixed concrete do not adhere and the shutter bends Can be prevented.   According to the present invention, the edge of the shutter is formed with a blade-like taper. In order to reduce the frictional resistance with concrete when opening and closing the shutter, It is possible to prevent the bending of.   According to the present invention, since the space of the bearing is filled with the lubricant, the rotation of the rotating shaft is prevented. It is an excellent concrete press-fitting device that can move smoothly.

[Brief description of drawings]

FIG. 1 is a perspective view of a concrete press-fitting device according to the present invention.

FIG. 2 is a side view in which the same portion is cut away.

FIG. 3 is a front view in which the same portion is omitted.

FIG. 4 is a rear view showing an operating state of the shutter.

[Explanation of symbols]

3 Plate 4 Flange 4a Side 6 Connection tube 7 Bearing 8 Rotating shaft 8a bolt 14 washer 15 spring washer

Claims (3)

[Scope of utility model registration request] 1. A mounting plate formed in a concrete pouring form is provided with a plate with a flange that fits in a recessed state from the concrete pouring surface, and the plate is provided with an inner peripheral wall inclined upward. A plate is provided with a pressurizing port, and a connecting pipe arranged at the same inclination angle as the slanted inner peripheral wall is fixed to the outside of the plate and slidably contacting the inside of the plate to shield the pressurizing port. Through a bearing provided on the outer side of the bolt so as to project outward so as to be orthogonal to the plate and pivotally attached to an inner end of a bolt that constitutes a rotating shaft having a threaded portion, and a pressing force of the shutter is applied to the rotating shaft of the plate. A washer for adjusting, a spring washer, and a nut are provided, and a bearing projecting to the outside of the plate is brought into contact with the washer and the spring washer in which the bolt of the rotating shaft is inserted, and the washer and the spring washer are supported by the nut. Pressed to the side Then, a supporting plate having a small convex upper part is erected between the nuts, and the front bending piece is arranged with a slight gap on the outer side surface of the plate. The upper small convex piece of the support plate is inserted into the opening of the belt-shaped portion of the intermediate portion of the stopper body that is attached and fixed to the above-mentioned portion through the rotation nut portion, and the outer end of the rotation shaft protruding outside the plate. Part is provided with a turning nut part, is detachably attached to the turning nut part, and the mouth part is fitted to the turning nut part to turn the nut part, thereby synchronizing the bolt, the shutter and the stopper body. A double-ended ratchet wrench is used to rotate the bolt by the double-sided ratchet wrench so that the front bent piece of the stopper body is brought into contact with the side portion of the flange on one side provided on the outside of the plate or the outer surface of the connecting pipe. Rotate to touch Along with this, the open / closed state of the shutter is maintained. To maintain the open / closed state of the shutter, the pressing force due to the contact between the washer and the spring washer inserted through the bolt of the rotation shaft and the front bent piece of the stopper body A concrete press-fitting device, which is maintained by abutting on a side portion of a flange on one side provided on the outside of the base or an outer surface of a connecting pipe. 2. The concrete press-fitting device according to claim 1, wherein a rim of the shutter is formed into a blade-like taper. 3. A lubricant such as grease is filled in the space between the outer peripheral surface of the rotating shaft of the bearing and the inner peripheral surface of the bearing which penetrates and is fixed to the plate. The concrete press-fitting device according to 1 or 2.