KR101282395B1 - Operation aid for manual pump - Google Patents

Abstract

The pump body by reciprocating the piston rod protruding outward from the pump body, which is installed in the storage container by screwing a screwing member rotatably installed in the suction pipe portion extending from the pump body to the inlet of the storage container. An operation aid for a piston type manual pump for discharging liquid by operating a piston inside, having an opening for screwing the inlet portion of the storage container and the screwing member of the manual pump, the screwing member at the inlet portion through the opening. Rocking arm having a support plate fixed by screwing the support plate, a support stand erected on the support plate, a point portion axially supported on the support plate, a force point portion for applying force, and an action point portion formed at an internal or external position between these point portions and the point portion And a rocking arm having a piston rod connected to the working point thereof. The piston rod is characterized by being capable of reciprocating operation by holding and swinging the inverse point portion.

Description

Operation aid of manual pump {OPERATION AID FOR MANUAL PUMP}

The present invention relates to an assisting tool for reducing the operating force of a piston type manual pump.

As a pump which pumps liquids, such as water, kerosene, and a chemical, from a container with a large capacity | capacitance, such as a drum barrel, the cheap piston type manual pump made of resin like that disclosed by the nonpatent literature 1 is marketed, and is used a lot.

This piston type manual pump is rotatably provided with a lid-shaped screw engaging member suitable for the inlet of the liquid storage container, in a suction pipe portion extending from the pump body, and screwed the screw engaging member to the inlet of the storage container. It is a pump of a well-known structure which operates a piston in a pump main body to drain liquid from a storage container by reciprocating a piston rod which protrudes out of a pump main body, ie, repeating indentation and withdrawal several times.

[Non-Patent Document 1] Homepage of Koshin Corp.> Product Information> Home Industry> Kerosene Pump> Drum Bucket Type, [Online], [November 24, 2005 Search], Internet <URL: http://www.koshin-ltd.jp/products/domestic/kerosene/pp.html>

In recent years, an urea aqueous solution is used as an NO _x purification liquid reducing agent in an exhaust purification apparatus installed in a diesel vehicle. Manual pumps are used. However, in the case of a liquid having a high specific gravity such as urea aqueous solution or the like, the piston rod operating force of the pump becomes large and requires a considerable force, which is a difficult task.

In order to alleviate this, automatic pumps or hand-operated manual drum pumps may be used. However, this type of pump made of resin for chemicals such as urea solution is expensive, and it is currently hesitant to adopt only for the supply of urea solution. It is true. This is a social infrastructure (infrastructure) maintenance problem to be solved in spreading the exhaust purification device.

SUMMARY OF THE INVENTION The present invention has been made in view of this point, and proposes an operation aid that can reduce the operating force of a piston type manual pump, so that it can be easily replenished with a piston type manual pump made of resin which is inexpensive and easily available. It is.

The operation aid of the present invention is provided in the storage container by screwing a screw engagement member rotatably installed in the suction pipe portion extending from the pump body to the inlet of the storage container, and reciprocates a piston rod protruding out of the pump body. An operation aid for a piston type manual pump which operates by operating a piston in the pump main body to discharge liquid, and has an opening for screwing the inlet portion of the storage container and the screwing member of the manual pump. A support plate fixed by screwing a screwing member to an inlet portion through an opening, a support stand erected on the support plate, a point portion mobilized to the support support, and a pivot point for applying force ( A working point portion formed at a position which is internally or externally divided between the point portion and the reverse point portion Comprising: a swing arm, thereby to emphasize a portion phage (把持) of the swing arm connecting the piston rod to the working point portion pivot, characterized in that which is to operate the reciprocating piston rod.

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view which shows the state which installed the operation assistance tool which concerns on the 1st Embodiment of this invention to the drum container with a piston type manual pump.

2 is a side view of the operation aid and the piston type manual pump of the first embodiment.

3 is a side view of the operation aid and the piston type manual pump seen from the X direction in FIG. 2.

4 is a side view of the operation aid and the piston type manual pump according to the second embodiment of the present invention.

FIG. 5 is a side view of the operation aid and the piston type manual pump seen from the Y direction in FIG. 4. FIG.

<Explanation of symbols for the main parts of the drawings>

1: piston type manual pump 2: pump body

3: suction pipe portion 4: screwing member

5: piston rod 6: hose

7: cap 10: operation aid

11: support plate 11a: leg member

12, 20, 21: Landlord 13: rocking cancer

13a: branch portion 13b: station portion

13c: working part 14: pump support ring

15: guide member 15a: guide groove

16, 30: connecting arm 17: retaining ring

22: guide arm

1 to 3 show a first embodiment of the present invention and describe it with reference to this.

The piston type manual pump 1 of 1st Embodiment is a pump made from commercially available resin for chemicals, and is provided in the inlet part of the drum cylinder D (an example of a storage container) in which the urea aqueous solution was put. That is, the screw engaging member 4 is rotatably provided around the suction pipe part 3 extending from the pump main body 2, and the suction pipe part 3 is inserted into the cylinder from the inlet part of the drum cylinder D. As shown in FIG. By screwing the screw engagement member 3 to the inlet part of the drum cylinder D, the pump main body 2 is provided on the inlet part. The piston rod 5 protrudes out of the pump main body 2 from the opposite side to the side where the suction pipe 3 of the pump main body 2 extends, i.e., at the top when it is installed in the drum barrel D. The piston in the pump main body 2 is operated by linearly reciprocating the piston rod 5 up and down, and the contents of the drum barrel D are pumped out from the suction pipe part 3 through the hose 6. If the cap 7 at the tip of the piston rod 5 is loosened after the predetermined amount of the urea aqueous solution is discharged from the drum, it is a well-known pump designed to stop the operation of discharging the urea aqueous solution.

The operation aid 10 provided in such a manual pump 1 includes a support plate 11, a support 12 erected on the support plate 11, and a rocking arm 13 supported by the support 12. It is configured to include.

The support plate 11 is made of a substantially rectangular stainless steel plate, and has an opening for screwing the inlet portion of the drum barrel D and the screwing member 4 therethrough, through which the inlet of the drum barrel D is opened. It is fixed not to move by screwing the screwing member 4 to a part. In other words, the screwing member 4 has a screwing portion 4a and a wider flange portion 4b, and the drum engaging portion 4a has a screwing portion 4a that protrudes through the opening of the support plate 11. When the screw is engaged with the inner peripheral surface of the inlet portion of the c), the support plate 11 is fixed by the flange portion 4b pressing the support plate 11. In this case, the support plate 11 may be fixed between the flange portion 4b and the inlet end, or the support plate 11 may be pressed against the surface of the drum cylinder D by pressing the flange portion 4b. It may be fixed. In addition to this, what is applicable to various application examples, such as the case where the screwing part 4a of the screwing member 4 is screwed to the outer peripheral surface of an inlet part, can be understood, without needing to demonstrate. Such an opening of the support plate 11 can be formed as a through hole or a cutout portion.

In the support plate 11, a leg member 11a protruding from the lower surface of the support plate 11 and contacting the surface of the drum cylinder D is an edge close to the installation site of the support 12 in the support plate 11. It is installed in two places. This leg member 11a is a screw-shaped thing which provided the handle part in the head part, is screwed to the support plate 11, and the protrusion amount from the support plate 11 can be adjusted. By providing the leg member 11a, when the height (protrusion amount from the surface) of the inlet part of the drum barrel D is high, or the spacer part is interposed in the inlet part of the drum barrel D, the screwing member 4 When a relatively wide gap is formed between the support plate 11 and the drum cylinder D, such as when it is necessary to screw-in, the leg member 11a protruding from the support plate 11 is formed in the drum cylinder D. It comes in contact with the surface and can support, and the shaking of the operation assistance tool 10 at the time of operation can be suppressed. In addition, since the amount of protrusion can be variably adjusted by simply holding the handle of the head and rotating the leg member 11a, it can be easily adapted even if the gap between the support plate 11 and the drum cylinder D is different. In addition, since the leg member 11a is provided in the corner part of the edge part which is separated from the opening part in the support plate 11 especially, when the leg member 11a is rotated and the protrusion amount is increased, the support plate 11 will be bent. Forces can be acted upon, and the reaction forces are the more effective in suppressing the shaking.

The support 12 standing on the support plate 11 is formed of an elongated stainless steel plate, and is provided by bolting the base flange 12a of the support 12 to the support plate 11. Ribs 12b for reinforcement are provided on both sides of the support 12 from the base flange 12a to the height of the way, and the paper for holding the swing arm 13 from both sides above the rib 12b. The member 12c is fixed. Moreover, in addition to forming the support | pillar 12 with one sheet and the storage member fixed to it in this way, the metal plate and the resin plate of the same shape are erected on the support plate 11 in parallel, and the rocking arm 13 is moved from both sides. It is also possible to set it as the support | pillar 12 of the 2-piece board structure to support.

In addition, a pump support ring 14 for bolting is provided at the intermediate portion of the support 12 to enclose, fasten and fix the pump main body 2. The pump support ring 14 is a semi-circular dividing type. The support 12 and the pump main body 2 move with each other by surrounding the pump main body 2 in this manner. So that they are not interlocked. By doing in this way, the shake when the piston rod 5 reciprocates can be suppressed, and reciprocating operation can be performed smoothly.

In addition, the guide member 15 is fastened to the intermediate part of the support 12 by the bolt fixing together with the bearing member 12c, and along the operation direction of the piston rod 5 to the guide member 15. The guide groove 15a is formed.

The upper end portion of the support 12 is supported by the support 12 and the retaining member 12c on both sides, and the swinging arm 13 is pivoted so as to swing the bolt about the axis. The swinging arm 13 has an internal portion (or an external powder) at the point portion 13a borne by the support 12, the force point portion 13b for applying a force, and the line portion (line segment) between the point portion 13a and the point portion 13b. Has a working point portion 13c formed at one position. The piston rod 5 is connected to this working point part 13c via a link mechanism, and the piston rod 5 is moved by the lever principle by rocking the swinging arm 13 by holding the reverse point part 13b. Easily reciprocating operation. Since the acting point 13c of the swinging arm 13 has an arch shape between the pointed portion 13a and the pointed portion 13b, since the stationary point and the point of action are in the form of a lever belonging to the same side (i.e. On the other hand, in the case of a lever type in which the station and the operating point are located opposite to each other with the point in between (ie, divided), the working point portion 13c of the rocking arm 13 is the branch portion ( 13a is provided so as to be on the opposite side of the power point portion 13b, as long as the working point portion 13c is closer to the point portion 13a than the power point portion 13b, although any form may be used, the first embodiment An anticorrosion form such as is advantageous in terms of compactness.

The connection arm 16 is pin-connected to the working point 13c of the rocking arm 13 so that rocking is possible. Moreover, the fixing ring 17 which surrounds, fastens, and fixes the piston rod 5 is connected to this connection arm 16 so that rotation is possible. Specifically, one connecting pin 16a penetrates through the lower end of the connecting arm 16 hung from the swinging arm 13, and the support arm 16b of "L-shape" is provided at both ends of the connecting pin 16a. These two shafts are supported, and the side surface of the fixing ring 17 is welded to the front-end | tip of these support arms 16b. By providing the link mechanism by this connecting arm 16 and the fixed ring 17, the rotational movement of the rocking arm 13 is converted into linear motion in the fixed ring 17, and the piston rod 5 which reciprocates is moved. Can be operated without difficulty.

In addition, the connecting pin 16a of the connecting arm 16 is arranged to slide inside the guide groove 15a formed in the above-described guide member 15. In this way, the connecting arm 16 guides the guide groove 15a. Guided to and reciprocating. By guiding the connecting arm 16 by the guide groove 15a formed in accordance with the operating direction of the piston rod 5, the operating direction of the connecting arm 16 is regulated, the shaking is suppressed, and the piston rod is unreasonable. The reciprocating operation can be performed smoothly without adding.

According to the operation assistance tool 10 of the structure mentioned above, it assembles to a commercial hand pump 1 later, and the reciprocating operation of a piston rod can be performed more easily than before by the principle of the lever by the rocking arm 13. Can be. The assembling method can also be carried out by a simple method of fitting the support plate 11 between the screw engagement member 4 of the manual pump 1 to be screwed to the inlet of the drum barrel D and the drum barrel D. Since it is a simple mechanical mechanism including the support plate 11 which can be press-molded, the support 12, and the rocking arm 13, it can be made much cheaper than an automatic pump or a drum pump.

In the assembly of the manual pump 1 and the operation aid 10, the operation aid 10 is arranged by first bringing the opening of the support plate 11 into the inlet of the drum D. FIG. In addition, the suction pipe part 3 is inserted into the inlet part through the opening part, and the screwing member 4 is screwed into the inlet part. When the screwing member 4 is screwed, the support plate 11 presses the drum cylinder D, and the leg member 11a contacts and supports the surface of the drum cylinder D. The degree of contact of the leg member 11a can be adjusted by holding the handle of the head and rotating it.

Thereafter, the pump support ring 14 enclosing the pump body 2 is bolted to the support 12, and the piston rod 5 is enclosed with the fixing ring 17 to connect the connecting arm 16. To the swinging arm (13) through. When the connecting pin 16a of the connecting arm 16 is accommodated in the guide groove 15a and the guide member 15 is bolted to the support 12, the manual pump 1 and the operation aid 10 Assembly is completed. After assembling, if the pivot point 13b of the swing arm 13 of the operation aid 10 is held by hand and swings up and down, the piston rod 5 is connected via the connection arm 16 from the action point 13c. ) Is reciprocated and the urea aqueous solution in the drum can be easily pumped out by the lever principle. Loosening the cap 7 after the required amount is carried out can stop the pouring.

4 and 5 show a second embodiment of the present invention. In addition, the same code | symbol is attached | subjected to the part same as 1st Embodiment shown in FIGS. 1-3, and duplication description is abbreviate | omitted.

The operation assistance tool 10 is comprised including the support plate 11, the support posts 20 and 21 which were erected on this support plate 11, and the rocking arm 13 supported by this support post 20 and 21. As shown in FIG.

In the second embodiment, two elongated stainless steel plates 20, 21 are erected on the support plate 11 on which the leg member 11a is provided, as in the first embodiment, and the support post is formed. The plates 20 and 21 having the same shape forming the support are bolted to the support plate 11 with the base flanges 20a and 21a so as to face each other at a predetermined interval and stand in parallel to support the swinging arm 13 from both sides. Is in the form of Ribs 20b and 21b are provided on both sides of the plates 20 and 21 over the entire length for reinforcement. The pump support ring 14 similar to 1st Embodiment which encloses and fastens the pump main body 2 may be provided in the intermediate part of the support | pillar 20 and 21 which have such a structure. In addition, the guide arm 22 is prevented from falling off by the snap pin 22a in the support | pillar 22, and it is provided in the intermediate | middle part of the board | substrate 20 so that it can be swung and oscillated. In addition, the guide arm 22 may be provided in both boards 20 and 21.

The upper end portions of the support posts 20 and 21 are supported by two plates 20 and 21 on both sides thereof, and the swing arm 13 is pivoted so as to swing around the bolt. The connecting arm 30 is connected to the working point part 13c of the rocking arm 13 so that rocking is possible. The connecting arm 30 is configured by holding two arm members having the same shape on both sides of the swinging arm 13. The intermediate | middle part is bent, and this connection arm 30 has the form which integrally formed the support arm 16b in 1st Embodiment. Moreover, the fixing ring 17 which surrounds, fastens, and fixes the piston rod 5 is connected to the front-end | tip part of the connection arm 30 bent and formed in this way by welding.

The guide arm 22 is prevented from falling off by the snap pin 22b, and is connected to the intermediate | middle part of this connection arm 30 so that rotation is possible. The guide arm 22 swings together in accordance with the motion of the swinging arm 13, and supports the intermediate portion of the connecting arm 30 so as not to swing back and forth or sideways. That is, unnecessary movement of the connecting arm 30 when the force is received from the swinging arm 13 can be suppressed, and the operation direction can be restrained to smoothly reciprocate the operation without applying force to the piston rod 5. .

Since the fluctuation of the guide arm 22 shows a large arc trajectory, convex portions of about several millimeters occur with respect to the linear trajectory of the reciprocating motion, but the piston rod 5 originally has a play (operation clearance) of several millimeters or more. Therefore, in consideration of this, the assembly is operated smoothly without problems.

Similarly to the first embodiment, the operation aid 10 of the second embodiment is also assembled to a commercially available manual pump 1 later, and the piston rod is more easily driven than the conventional one by the principle of the lever by the swinging arm 13. Reciprocating operation can be performed. The assembling method may also be performed by simply inserting the support plate 11 between the screw engaging member 4 of the manual pump 1 which is screwed to the inlet of the drum barrel D and the drum barrel D. Since it is a simple mechanical mechanism including the support plate 11, the support 20, 21, and the swing arm 13 which can be press-molded, it can be made much cheaper than an automatic pump or a drum pump.

In the assembly of the manual pump 1 and the operation aid 10, first, as in the first embodiment, the operation aid 10 is arranged so that the opening of the support plate 11 is aligned with the inlet of the drum barrel D. FIG. do. In addition, the suction pipe part 3 is inserted into the inlet part through the opening part, and the screwing member 4 is screwed into the inlet part. When the screwing member 4 is screwed, the support plate 11 presses the drum cylinder D, and the leg member 11a contacts and supports the surface of the drum cylinder D. The degree of contact of the leg member 11a can be adjusted by holding the handle of the head and rotating it.

Thereafter, the piston rod 5 is enclosed by the fixing ring 17 and connected to the swinging arm 13 via the connecting arm 30. When the guide arm 22 is connected to the connecting arm 30 with the snap pin 22b, the assembly of the manual pump 1 and the operation aid 10 is completed. After assembling, if the pivot point 13b of the swing arm 13 of the operation aid 10 is held by hand and swings up and down, the piston rod 5 is connected via the connection arm 30 from the acting point 13c. ) Is reciprocated and the urea aqueous solution in the drum can be easily pumped out by the lever principle. Loosening the cap 7 after the required amount is carried out can stop the pouring.

According to this operation aid, it can be assembled later on a piston type manual pump made of a commercially available resin, and the reciprocating operation of the piston rod can be performed more easily than conventionally by the principle of the lever by the rocking arm. The assembling method may also be a simple method of simply inserting a support plate between the screwing member of the manual pump which is screwed to the inlet of the storage container and the storage container. In addition, since it is a simple mechanical mechanism including a support plate, a strut and a rocking arm, it can be manufactured at a much lower cost than an automatic pump or a drum pump.

That is, according to the operation assistance tool of the manual pump of this invention, since the assistance tool itself can be manufactured cheaply and can be easily assembled later in a piston type manual pump, it is much easier to employ | adopt compared with expensive automatic pump etc. In addition, since the pump operation force can be reduced on the principle of the lever, even a piston-type manual pump made of resin which is inexpensive and easy to obtain can be easily replenished. Therefore, maintenance of the operation aid of the present invention as an infrastructure for urea aqueous solution replenishment operation is helpful for the replenishment of the exhaust purification apparatus of diesel vehicles.

Claims (7)

The pump main body is reciprocally operated by a reciprocating operation of a piston rod protruding out of the pump main body, by screwing a screwing member rotatably installed at a suction pipe portion extending from the pump main body to an inlet of the storage container. As an operation aid of a piston type manual pump which operates a piston inside and delivers liquid, A support plate having an opening for screwing the inlet to the screw engaging member and fixed by screwing the screw engaging member to the inlet through the opening; A prop built on the support plate, And a rocking arm having a point portion moistened to the support, a force point for applying a force, and an action point portion formed at an internal or external position between the point and the power point, An operation assisting tool for a manual pump, characterized in that the piston rod can be reciprocated by holding and swinging the reverse point portion of the swinging arm that connects the piston rod to the working point portion. The method of claim 1, A connecting arm is pivotably connected to an action point portion of the swinging arm, and a fixing ring for swinging and fastening the piston rod is connected to the connecting arm so as to be swingable. . 3. The method of claim 2, A guide member extends from the support and is provided. A guide groove is formed in the guide member along the direction of operation of the piston rod, and the connecting arm is guided by the guide groove to reciprocate. Pump operation aid. The method of claim 1, A connecting arm is pivotably connected to an action point of the swinging arm, and a fixed ring for enclosing and fastening the piston rod is connected to a distal end of the connecting arm, and at the middle of the connecting arm, A guide pump operated by a prop is oscillatingly coupled to an oscillating guide arm. The method of claim 1, A pump support ring for enclosing and fastening the pump main body and extending from the support is provided. The method of claim 1, And a leg member protruding from the lower surface of the support plate to contact the storage container. The method of claim 6, The leg member is screwed to the support plate, and the operation aid of the manual pump, characterized in that the amount of projection is adjustable.

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