JP3152126U - Manual pump - Google Patents

Abstract

Provided is a manual pump which has a function of inflow and discharge of water and air, has a simple structure, and is easy to use. SOLUTION: A manual operation part 2 for moving a piston rod 5 up and down, a cylinder 1 having a space part where the piston rod 5 moves up and down, and an inflow for introducing water and air are provided at the lower part of the cylinder 1 An inflow portion provided in the vicinity A of the portion, a first valve provided in the inflow portion and allowing water / air only in the inflow direction, and provided at a position facing the inflow portion at a lower portion of the cylinder 1 A discharge part provided in the vicinity of the discharge part B to be discharged, a second valve provided in the discharge part and allowing water or air only in the discharge direction, and a first hose 20 for water inflow detachably attached to the inflow part And a second hose 30 for water / air discharge attached to the discharge part 11, and when the water is inflow / discharge, the first hose 20 is attached to the inflow part 10, and at the time of air inflow / discharge First ho When opening the scan 20, performs an operation by the manual operation section 2. [Selection] Figure 3A

Description

  The present invention relates to a manual pump, and more particularly, to a manual pump suitable for injecting air into a family pool used at home or discharging water in the pool.

  As a manual pump used at home, an air supply pump that pours air into a bicycle tire is generally used. In addition, pumps that inflate by inflating air into a vinyl family pool are also known.

  For example, Patent Document 1 below discloses a manual pump for charging and exhausting that can manually perform charging and exhausting operations. In this pump, a communication passage communicating with the inside of the cylinder is formed in the piston rod from the outer end surface of the piston fixed to one end of the piston rod, and the piston fixing direction of the piston rod is inserted into the cylinder and protrudes from the cylinder. The piston rod is provided with an air inlet that communicates with the communication passage via the air check valve, and an exhaust port that communicates with the communication passage via the exhaust check valve. A handle is formed.

Japanese Utility Model Publication No. 60-173678

  The above-mentioned manual pump is excellent in that it has a function of filling and exhausting air, but it has an air flow passage at the position of the handle and is not convenient. In addition, the structure does not take into account the inflow and discharge of water. In a family pool for home use, it has been desired not only to inject air but also to easily discharge water from the pool. Usually, the family pool is lifted and tilted or turned over to drain the water inside. Such work is inconvenient to handle and causes problems such as splashing on clothes. The above-mentioned patent document 1 cannot cope with the discharge of water contained in the family pool, and the development of a more convenient manual pump has been desired.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a manual pump that has a function of inflow and discharge of water or air, has a simple structure, and is easy to use.

In order to solve the above problems, the manual pump according to the present invention is:
A manual operation unit for moving the piston rod up and down;
A cylinder having a space in which the piston rod moves up and down;
An inflow part provided at the lower part of this cylinder, into which water or air flows,
A first valve provided in the inflow portion and allowing water or air only in the inflow direction;
A lower part of the cylinder, provided at a position facing the inflow part, and a discharge part for discharging water or air;
A second valve that is provided in the discharge section and allows water or air only in the discharge direction;
A first hose removably attached to the inflow portion;
A second hose attached to the discharge part,
At the time of inflow / discharge of water, with the first hose attached to the inflow portion, the manual operation portion is moved upward to cause water to flow into the cylinder from the first valve, and the manual operation portion is moved downward. And drain the water in the cylinder from the second valve.
At the time of inflow / discharge of air, with the first hose removed from the inflow portion, the manual operation portion is moved upward to cause air to flow into the cylinder from the first valve, and the manual operation portion is moved downward. Thus, the air in the cylinder is discharged from the second valve.

  The operation and effect of the manual pump according to this device will be described. By operating the manual operation unit up and down, the piston rod moves up and down in the space in the cylinder. An inflow portion and a discharge portion are provided at the lower portion of the cylinder. A first hose and a second hose are attached to the inflow portion and the discharge portion, respectively. At least the first hose is detachable. The second hose may be detachable or may be fixed from the beginning.

  For example, when injecting air into the family pool, the first hose is removed from the inlet. Connect the tip of the second hose to the air injection part of the family pool. Move the manual operation unit upward in the cylinder. At this time, inflow of air from the first valve is allowed, but inflow or discharge of air from the second valve cannot be performed. Next, the manual operation unit is moved downward. Thereby, air is discharged | emitted from a 2nd valve | bulb, air is inject | poured in a family pool via a 2nd hose, and a family pool can be expanded. At this time, air cannot be discharged from the first valve.

  On the other hand, when draining the water in the family pool, the first hose is attached to the inflow portion, and the tip portion is inserted into the puddle portion in the pool. The tip of the second hose is set at an appropriate location such as a drainage groove where water is to be discharged. Move the manual operation unit upward in the cylinder. At this time, inflow of water from the first valve is allowed through the first hose, but water cannot be discharged from the second valve. Next, the manual operation unit is moved downward. Thereby, water is discharged from the second valve. At this time, water cannot be discharged from the first valve.

  As described above, air can be flowed in and out and water can be flowed in and out with one manual pump, and the inflow and discharge sections are located at the bottom of the cylinder so that they face each other. The flow of water and air is smooth and the hose is easy to install, making it easy to use. Also, the structure is simple. Therefore, it is possible to provide a manual pump that has a function of inflow and discharge of water or air, has a simple structure, and is easy to use.

  In the present invention, it is preferable that a drain plug is provided on the bottom surface of the cylinder. Since the water flowing into the cylinder may not be completely discharged outside the cylinder, the remaining water can be discharged by providing a stopper on the bottom of the cylinder.

  It is preferable that the second hose according to the present invention is detachably attached to the discharge portion, and a plurality of types of air injection adapters are detachably attached to a distal end portion of the second hose.

  Since the second hose is also detachable from the discharge part, the manual pump can be stored and carried easily. Further, by making the adapter detachable at the tip of the second hose, it can be used for various family pools and other air injection targets (for example, bicycle tires, beach balls, etc.).

  In the present invention, each of the first valve and the second valve includes a vertical wall surface in which a plurality of holes are formed, and an elastic sheet positioned downstream of the water or air on the vertical wall surface. When allowing the inflow or discharge of water, it is configured so that gaps are formed between the plurality of holes in the vertical wall surface and the elastic sheet in conjunction with the operation of the manual operation unit, and inflow or discharge of water or air When prohibiting the movement, it is preferable that the plurality of holes in the vertical wall surface and the elastic sheet are in close contact with the operation of the manual operation unit.

  A plurality of holes can be formed in the vertical wall surface, and air and water can be introduced into the cylinder and discharged from the cylinder through the holes. In addition, an elastic sheet is provided on the downstream side where water and air move. In the first valve on the inflow portion side, when the manual operation portion is lifted, a gap is formed between the vertical wall surface and the elastic sheet, and air and water can flow in. At the same time, in the second valve, the vertical wall surface and the elastic sheet are in close contact with each other, so that air and water cannot be discharged. On the other hand, when the manual operation unit is moved downward, a gap is formed between the vertical wall surface and the elastic sheet in the second valve in the discharge unit, and air and water can be discharged. At the same time, in the first valve, a gap is formed between the vertical wall surface and the elastic sheet, so that air and water cannot flow. With the above configuration, the first and second valves can be reliably operated.

  The elastic sheet in the present invention is preferably engaged with a hole formed in a central portion of the vertical wall surface.

  Accordingly, the elastic sheet can be attached to the vertical wall surface by a simple method, the first and second valves can be reliably operated, and the first and second valves can be realized at low cost. .

  In the present invention, it is preferable to use both the first hose and the second hose. Accordingly, the hose can be attached and detached without worrying about which is the inflow portion or the discharge portion, and usability can be improved.

The perspective view which shows the external appearance structure seen from the upper direction of a manual pump The perspective view which shows the external appearance structure seen from the bottom face of the manual pump Sectional view showing the internal structure of the manual pump Sectional view showing details of internal structure of manual pump Enlarged exploded perspective view of the valve External perspective view explaining air inflow operation Sectional drawing explaining inflow operation | movement of air External perspective view explaining air discharge operation Sectional drawing explaining air discharge operation External perspective view explaining the inflow operation of water Sectional drawing explaining inflow operation of water External perspective view explaining water discharge operation Cross-sectional view explaining the water discharge operation

  A preferred embodiment of a manual pump according to the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing an external configuration of the manual pump as viewed from above. FIG. 2 is a perspective view showing an external configuration viewed from the bottom of the manual pump.

<Appearance configuration of manual pump>
This manual pump is suitable for a family pool. A cylinder 1 having a vertical cylindrical shape is provided, and a manual operation unit 2 is provided on the cylinder 1. The manual operation unit 2 includes a handle 2a for manual operation. A cover 1a is provided on the upper surface of the cylinder 1, and a number of holes 1b are formed on the upper surface. This hole 1b is an air circulation hole and facilitates the movement operation of the manual operation unit 2 in the vertical direction.

  An inflow portion 10 and a discharge portion 11 are provided at the lower portion of the cylinder 1. Air or water flows into the cylinder 1 from the inflow portion 10. From the discharge part 11, the air or water in the cylinder 1 is discharged. A first hose 20 is detachably attached to the inflow portion 10. The second hose 30 is also detachably attached to the discharge unit 11. The inflow part 10 and the discharge part 11 are arranged so as to face each other, and their center lines are arranged in a straight line.

  The first hose 20 is used for the purpose of flowing water into the cylinder 1. When injecting air, it removes from the inflow part 10. FIG. The front end 20a of the first hose 20 is inserted into water stored in the family pool. A mounting nut 21 is rotatably provided at the base of the first hose 20. By rotating the mounting nut 21, the attaching / detaching operation of the first hose 20 with respect to the inflow portion 10 can be performed. A male screw corresponding to the mounting nut 21 is formed on the cylinder 1 side.

  A number of adapters 3 are configured to be detachable from the distal end portion 30 a of the second hose 30. These adapters 3 are used when injecting air. When discharging water, the adapters 3 may be removed from the distal end portion 30a, but may be appropriately attached. Each adapter 3 is provided with an attachment pin 3a, and the adapter 3 can be attached to the distal end portion 30a by being inserted along the guide groove 30b formed in the distal end portion 30a. An appropriate adapter 3 is selected and attached in order to cope with various air injection portions such as a family pool air injection portion, a beach ball, and a bicycle tire.

  The same adapter 3 can be attached to the tip of the first hose 20. This is used when the air injected into the family pool or the like is removed.

  A mounting nut 31 is rotatably provided at the base of the second hose 30. By rotating the mounting nut 31, the attaching / detaching operation of the second hose 30 with respect to the discharge portion 11 can be performed. A male thread corresponding to the mounting nut 31 is formed on the cylinder 1 side. These points are the same as those of the first hose 20.

  A support base 1c is integrally attached to the bottom surface of the cylinder 1 so that the cylinder 1 can be easily placed. As shown in FIG. 2, a drain plug 4 is provided at the center of the bottom surface. When the water in the cylinder 1 is discharged, the plug 4 may be removed.

<Internal structure>
Next, the internal structure of the manual pump will be described with reference to FIGS. 3A and 3B. 3A is an overall cross-sectional view, FIG. 3B (a) is an enlarged cross-sectional view of the vicinity of the inflow portion (indicated by A in FIG. 3A), and FIG. 3B (b) is the vicinity of the discharge portion (B in FIG. 3A). FIG. FIG. 4 is an enlarged exploded perspective view of the valve.

  A piston rod 5 is integrally attached to the manual operation unit 2. A piston head 6 is attached to the lower end side of the piston rod 5. By operating the manual operation unit 2 up and down, the piston rod 5 and the piston head 6 integrally move up and down in the space in the cylinder 1.

  The structure of the 1st valve | bulb 7 provided in the inflow part 11 is demonstrated. A first valve 7 is attached to the lower part of the support base 1c attached to the bottom surface of the cylinder 1 by press-fitting or the like. An O-ring 71 is fitted on the outer peripheral surface of the first valve 7.

  A nut attachment member 22 is fixed to the root portion of the first hose 20, and the attachment nut 21 is rotatably attached to the nut attachment member 22. A holding member 23 is provided so that the mounting nut 21 does not come off in the axial direction. The female screw formed on the inner surface of the mounting nut 21 is screwed into the male screw formed on the support base 1c.

  A vertical wall surface 7a is integrally formed on the first valve 7, and holes 7b are formed at six locations along the circumferential direction, as shown in FIG. Further, a hole 7c is formed in the central portion of the vertical wall surface 7a.

  The first valve 7 includes an elastic sheet 70. The elastic sheet 70 is made of rubber and includes a sheet main body portion 70a, a small diameter portion 70b, and a locking large diameter portion 70c. The inflow direction of water or air is from the left side to the right side as indicated by an arrow C in FIG. 3B (a). The seat body 70a is located downstream of the vertical wall surface 7a in the moving direction of water or air (on the right side of the vertical wall surface 7a), and the large-diameter portion 70c is positioned upstream of the vertical wall surface 7a in the moving direction. To do. The elastic sheet 70 can be incorporated into the vertical wall surface 7a by inserting the large locking portion 70c from the right side of the vertical wall surface 7a shown in the drawing. Although the outer diameter of the large-diameter portion 7c is larger than the hole 7c of the vertical wall surface 7a, it can be inserted by being elastically deformed. After the insertion, the large-diameter portion 7c is assembled so as not to be easily detached from the hole 7c.

  In the state shown in FIG. 3B (a), the elastic sheet 70 closes the hole 7b of the vertical wall surface 7a, and there is no movement through the water or air hole 7b. By forming a gap between the vertical wall surface 7 a and the sheet main body portion 70 a of the elastic sheet 70, water or air can flow into the cylinder 1 from the direction of arrow C.

  The structure of the 2nd valve | bulb 8 provided in the discharge part 11 is demonstrated. The configuration of the second valve 8 is basically the same as that of the first valve 7.

  A nut attachment member 32 is fixed to the root portion of the second hose 30, and the attachment nut 31 is rotatably attached. Similarly, a pressing member 33 is provided. The internal thread formed on the inner surface of the mounting nut 31 is screwed into the external thread formed on the support base 1c.

  A vertical wall surface 8 a is also formed integrally with the second valve 8, and holes (not shown) are formed at six locations along the circumferential direction as in the case of the first valve 7. Moreover, a hole is formed in the central part of the vertical wall surface 8a.

  The elastic sheet 80 having the same shape as the elastic sheet 70 is made of rubber, and includes a sheet main body portion 80a, a small diameter portion, and a locking large diameter portion 80c. The discharge direction of water or air is from the left side to the right side as indicated by the arrow D in FIG. 3B (b). The seat body 80a is located on the downstream side of the vertical wall surface 8a in the direction of movement of water or air (the right side of the vertical wall surface 8a), and the locking large-diameter portion 80c is located on the upstream side of the vertical wall surface 8a in the movement direction. To do. The elastic sheet 80 can be incorporated into the vertical wall surface 8a by inserting the large locking portion 80c from the right side of the vertical wall surface 8a. Although the outer diameter of the locking large-diameter portion 8c is larger than the central hole of the vertical wall surface 8a, it can be inserted by elastic deformation. After the insertion, the large-diameter portion 8c is assembled so as not to be easily detached from the hole at the center.

  In the state shown in FIG. 3B (b), the elastic sheet 80 is in a state of closing the hole of the vertical wall surface 8a (corresponding to the hole 7b in FIG. 4), and the movement through the water or air hole is Absent. By forming a gap between the vertical wall surface 8a and the sheet main body 80a of the elastic sheet 8, water or air can be discharged out of the cylinder 1 from the direction of arrow D.

<Operation>
<Air inflow / discharge operation>
Next, the operation at the time of air inflow / outflow will be described with reference to FIGS. 5A and 6A are external perspective views. 5B and 6B show the internal operation.

  The inflow / exhaust of air is performed, for example, when air is injected into the family pool. First, the first hose 20 is removed from the inflow portion 10. The second hose 30 is attached to the discharge unit 11. An appropriate adapter 3 is attached to the tip 30 a of the second hose 30. Insert the tip of the adapter 3 into the air injection part of the family pool.

  Next, as shown in FIGS. 5A and 5B, the manual operation unit 2 is lifted upward. Thereby, the elastic sheet 70 is pulled in the arrow C direction on the first valve 7 side. As a result, the seat body 70a moves to the right, a gap is formed between the seat body 70a and the vertical wall 7a (the first valve 7 is opened), and six holes are formed in the vertical wall 7a. It flows into the inside of the cylinder 1 through 7b. At this time, the second valve 8 acts in the direction in which the seat body 80a sucks into the vertical wall surface 8a, so that air is not discharged or inflowed through the second valve 8.

  Next, as shown in FIGS. 6A and 6B, the manual operation unit 2 is pushed downward. Thereby, the elastic sheet 80 is pushed out in the direction of the arrow D on the second valve 8 side. As a result, the seat body 80a moves to the right, a gap is formed between the seat body 80a and the vertical wall surface 8a (the second valve 8 is opened), and six holes are formed in the vertical wall surface 8a. And is discharged to the outside of the cylinder 1 and discharged to the second hose 30. Accordingly, air is injected into the family pool connected to the second hose 30. At this time, the first valve 7 acts in the direction in which the seat body 70a is pressed against the vertical wall surface 7a, so that air is not discharged or inflowed through the first valve 7.

<Water inflow / discharge operation>
Next, the operation | movement at the time of inflow / discharge of water is demonstrated with reference to FIG. 7, FIG. 7A and 8A are external perspective views. 7B and 8B show the internal operation.

  The inflow / discharge of water is performed, for example, when discharging water accumulated in the family pool. First, the first hose 20 is attached to the inflow portion 10. The second hose 30 is also attached to the discharge unit 11. If necessary, an appropriate adapter 3 is attached to the tip 30a of the second hose 30. The tip 30a is set at an appropriate location such as a drainage groove. If necessary, an appropriate adapter 3 is also attached to the distal end portion 20a of the first hose 20, and the distal end portion 20a is inserted into the water reservoir in the family pool.

  Next, as shown in FIGS. 7A and 7B, the manual operation unit 2 is lifted upward. Thereby, the elastic sheet 70 is pulled in the arrow C direction on the first valve 7 side. As a result, the seat body 70a moves to the right, a gap is formed between the seat body 70a and the vertical wall surface 7a (the first valve 7 is opened), and six holes are formed in the vertical wall surface 7a. It flows into the inside of the cylinder 1 through 7b. Thereby, the water in the pool is once flowed into the cylinder 1. At this time, the second valve 8 acts in the direction in which the seat main body 80a sucks the vertical wall surface 8a, so that the water is not discharged or inflowed through the second valve 8.

  Next, as shown in FIGS. 8A and 8B, the manual operation unit 2 is pushed downward. Thereby, the elastic sheet 80 is pushed out in the direction of the arrow D on the second valve 8 side. As a result, the seat body 80a moves to the right, a gap is formed between the seat body 80a and the vertical wall surface 8a (the second valve 8 is opened), and water is formed in the six holes formed in the vertical wall surface 8a. And is discharged to the outside of the cylinder 1 and discharged to the second hose 30. Therefore, water can be discharged from the tip 30a of the second hose 30 to the drainage groove or the like. At this time, the first valve 7 acts in the direction in which the seat body 70a is pressed against the vertical wall surface 7a, so that the water is not discharged or inflowed through the first valve 7.

  In addition, when inflow / discharge of water is performed, water may remain in the cylinder 1. Therefore, as described with reference to FIG. 3, the water can be directly discharged to the outside by removing the plug 4 on the bottom surface.

  The manual pump according to the present invention can be used not only when draining water but also when draining air. In this case, an appropriate adapter 3 is attached to the distal end portion 20a of the first hose 20, and is inserted into an air injection portion such as a family pool. Thereby, the air in a family pool can be extracted. The air can be used not only for the family pool but also for beach balls and the like for the same purpose.

  According to the manual pump of the present invention, it is possible to provide a manual pump that has a function of inflow and discharge of water or air, has a simple structure, and is easy to use.

<Another embodiment>
Although this embodiment has been described for the family pool, the manual pump according to the present invention is not limited to a specific application.

  In the present embodiment, the first hose 20 and the second hose 30 have been described as being separate hoses, but it is preferable that both be the same shape hose. In other words, the first hose 20 may be used, and the second hose may be used. Thereby, the user can use it without worrying about the mounting position of the hose.

DESCRIPTION OF SYMBOLS 1 Cylinder 2 Manual operation part 3 Adapter 4 Plug 5 Piston rod 7 1st valve 7a Vertical wall surface 8 Second valve 8a Vertical wall surface 10 Inflow part 11 Discharge part 20 1st hose 30 2nd hose 70, 80 Elastic sheet 70a, 80a Sheet Main body 70c, 80c Large diameter section

Claims (6)

A manual operation unit for moving the piston rod up and down;
A cylinder having a space in which the piston rod moves up and down;
An inflow part provided at the lower part of this cylinder, into which water or air flows,
A first valve provided in the inflow portion and allowing water or air only in the inflow direction;
A lower part of the cylinder, provided at a position facing the inflow part, and a discharge part for discharging water or air;
A second valve that is provided in the discharge section and allows water or air only in the discharge direction;
A first hose removably attached to the inflow portion;
A second hose attached to the discharge part,
At the time of inflow / discharge of water, with the first hose attached to the inflow portion, the manual operation portion is moved upward to cause water to flow from the first valve into the cylinder, and the manual operation portion is moved downward. To drain the water in the cylinder from the second valve,
At the time of inflow / discharge of air, with the first hose removed from the inflow portion, the manual operation portion is moved upward to cause air to flow into the cylinder from the first valve, and the manual operation portion is moved downward. A manual pump characterized in that the air in the cylinder is discharged from the second valve. The manual pump according to claim 1, wherein a drain plug is provided on a bottom surface of the cylinder. 2. The second hose is detachably attached to the discharge portion, and a plurality of types of air injection adapters are detachably attached to a distal end portion of the second hose. Or the manual pump of 2. The first valve and the second valve include a vertical wall surface in which a plurality of holes are formed, and an elastic sheet positioned downstream of the water or air on the vertical wall surface. Is allowed to form a gap between the plurality of holes in the vertical wall surface and the elastic sheet in conjunction with the operation of the manual operation unit, and prohibits inflow or discharge of water or air The manual operation according to claim 1, wherein the plurality of holes in the vertical wall surface and the elastic sheet are in close contact with the operation of the manual operation unit. pump. The manual pump according to claim 4, wherein the elastic body is engaged with a hole formed in a central portion of the vertical wall surface. The manual pump according to any one of claims 1 to 5, wherein the first hose and the second hose are also used.

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