JP2006336609A - Connection pipe used in water feeding device for well - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connection pipe connectable to a suction port and a return port of a water feeding device by keeping a pitch allowing a suction pipe and a return pipe to be inserted into a well reasonably even if sizes of pitch of the suction port and the return port of the water feeding device do not correspond to bore of a well. <P>SOLUTION: This connection pipe 30 is attached to the suction port and the return port of the water feeding device for the well and is used to connect the suction pipe and the return pipe for inserting into the well with the suction port and the return port. This connection pipe is formed into an integral cylindrical shape having a pair of connection holes 31, 32. In a part of its basic part 33a, pitch a of arrangement of the connection holes 31, 32 is same as pitch of arrangement of the suction port and the return port of the water feeding device. In a part of an insertion part on its opposite side, pitch b of arrangement of the connection holes 31, 32 is smaller than pitch of arrangement of the suction port and the return port of the water feeding device. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a connecting pipe used in a jet type water supply device for sucking water from a well and supplying water.

  FIG. 5 shows the structure of a jet type water supply device for a well. The water supply device 1 includes a casing 2 constituting a pump unit, and an impeller (not shown) driven by a motor 3 is provided in the casing 2. It is stored.

  A suction port 5 and a return port 6 are provided side by side on one side of the casing 2, a discharge port 7 is provided on the other side, and an automatic pressure regulating valve 8 is provided on the upper side. Is provided. A water supply pipe 9 is connected to the discharge port 7.

  Flange 10 and 11 are attached to the suction port 5 and the return port 6 via bolts 12, respectively, and sockets 13 and 14 are attached to the flanges 10 and 11, respectively, and the suction port 5 is connected via these sockets 13 and 14. A suction pipe 16 and a return pipe 17 are connected to the return port 6.

  The suction pipe 16 and the return pipe 17 are inserted into the well 19, respectively, and the tips of the suction pipe 16 and the return pipe 17 are connected to each other through a jet portion (not shown) in the ground water in the well 19. Yes.

  The sockets 13 and 14, the suction pipe 16 and the return pipe 17 are each made of vinyl chloride. Moreover, 20 shown in the figure is a pressure accumulation tank.

  During operation, the impeller in the casing 2 is driven by the motor 3 to rotate, and the water in the casing 2 is pumped into the return pipe 17 from the return port 6 by this rotation. The water pumped into the return pipe 17 is jetted as high-pressure water through the nozzle into the suction pipe 16 in the jet portion in the well 19, and energy is given to the surrounding water by the jetting, and the water in the well 19 is used with this energy. Is sucked into the suction pipe 16, and this water is further sucked into the casing 2 through the suction pipe 16.

  The water sucked into the casing 2 is adjusted by the automatic pressure control valve 8, and a part thereof is sent from the return port 6 to the jet section in the well 19 through the return pipe 17, and the rest is sent to the discharge port 7. . By continuing such an operation, the water in the well 19 is sequentially supplied from the discharge port 7 to the predetermined water supply section through the water supply pipe 9.

  Incidentally, the suction port 5 and the return port 6 provided in the water supply device 1 are arranged at a predetermined pitch L, and the suction pipe 16 and the return pipe 17 are led out in parallel from the suction port 5 and the return port 6 and inserted into the well 19. Is done.

  In a normal case, the diameter of the well 19 is larger than the size corresponding to the pitch L between the suction port 5 and the return port 6 of the water supply apparatus 1, that is, the interval S between the outer surfaces of the suction pipe 16 and the return pipe 17. Therefore, the suction pipe 16 and the return pipe 17 can be inserted into the well 19 while being kept parallel.

  However, as shown in FIG. 5, a well 19 having a diameter smaller than the interval S between the outer surfaces of the suction pipe 16 and the return pipe 17 may be an object of construction. In such a case, the suction pipe 16 is used. It is difficult to insert the return pipe 17 into the well 19 while keeping the return pipe 17 in parallel.

  For this reason, in this case, the suction pipe 16 and the return pipe 17 are pressed so that the distal end sides thereof are close to each other to narrow the interval, and in this state, the suction pipe 16 and the return pipe 17 are placed in the well 19. I try to insert it.

  However, when the suction pipe 16 and the return pipe 17 are pressed into the well 19 so as to approach each other, the suction pipe 16 and the return pipe 17 and the suction port 5 and the return port 6 of the water supply apparatus 1 are inserted. An unreasonable force is applied to the connection part, causing water leakage.

  This invention was made paying attention to such a point, and the object of the invention is when the size of the pitch between the suction port and the return port of the water supply device does not correspond to the diameter of the well to be constructed. Even so, it is an object of the present invention to provide a connecting pipe that can be connected to the suction port and the return port of the water supply apparatus while keeping the pitch so that the suction pipe and the return pipe can be easily inserted into the well.

The present invention attaches to a suction port and a return port provided in a well water supply apparatus so as to be arranged at a constant pitch, and connects a suction pipe and a return pipe for insertion into the well to the suction port and the return port. A connecting pipe used for making an integral cylindrical shape having a pair of parallel connecting holes, and one end side of the cylindrical body in the axial direction is a base connected to the suction port and the return port The other end side is an insertion portion into which the suction pipe and the return pipe are inserted, and the pitch of the pair of connection holes in the base portion is the pitch of the suction port and the return port of the water supply device. Similarly, in the insertion portion, the pitch of the pair of connection holes is smaller than the pitch of the suction port and the return port of the water supply device. A connecting pipe used in water system.
The connecting pipe is preferably formed integrally with vinyl chloride as a material.

  According to the present invention, the pitch of the connection hole on the side where the suction pipe and the return pipe of the connecting pipe are inserted is smaller than the pitch between the suction port and the return port of the water supply device, and therefore the bore diameter of the well is reduced. Even when the diameter is smaller than the predetermined diameter corresponding to the pitch between the mouth and the return port, the suction pipe and the return pipe are kept parallel without reducing the interval between the suction pipe and the return pipe. It can be inserted into a well having a small diameter.

  For this reason, an unreasonable force is not applied to the connection portion between the suction pipe and the return pipe and the suction port and the return port of the water supply device, that is, the connecting pipe, thereby eliminating the cause of water leakage.

  Embodiments of the present invention will be described below with reference to the drawings.

  In FIG. 1, the state which connected the suction piping 16 and the return piping 17 to the suction inlet 5 and the return port 6 of the water supply apparatus 1 using the connecting pipe 30 of this invention is shown.

  2 is a cross-sectional view of the connecting pipe 30, FIG. 3 is a front view of the connecting pipe 30, and FIG. 4 is a rear view of the connecting pipe 30. The connecting pipe 30 is constituted by a cylindrical body 33 having a pair of connecting holes 31 and 32 arranged in parallel. The cylindrical body 33 is integrally formed of a synthetic resin such as vinyl chloride.

  The end of one end side in the axial direction of the cylindrical body 33 is a base 33a. A flange 34 projects integrally on the outer periphery of the base 33a, and mounting holes 35 are formed at four equal positions of the flange 34. Yes.

  The pair of connection holes 31, 32 extend in parallel along the axial direction of the cylindrical body 33, and the arrangement pitch a of the base portion 33 a is the arrangement pitch of the return port 6 and the suction port 5 in the water supply device 1. In the same manner as L, at the tip side opposite to the base portion 33a, the pitch b is smaller than the pitch L between the return port 6 and the suction port 5 in the water supply apparatus 1.

  That is, while the center axis of one connection hole 31 of the pair of connection holes 31 and 32 extends linearly, the center axis of the other connection hole 32 is bent in the middle, whereby pitch a> b A relationship has arisen.

  The connecting pipe 30 configured in this way has a flange 34 of its base 33a so that one connection hole 31 faces the suction port 5 in the water supply apparatus 1 and the other connection hole 32 faces the return port 6. Fastened to the side surface of the casing 2 via bolts 36. The bolts 36 are screwed into the side surfaces of the casing 2 through the attachment holes 35 formed at four locations on the flange 34.

  A suction pipe 16 is inserted into one connection hole 31 of the connecting pipe 30 from the opposite side of the base 33a, and a return pipe 17 is inserted into the other connection hole 32 from the opposite side of the base 33a. The distal end side of the return pipe 17 is inserted into the well 19.

  Here, the pitch b of the connection holes 31 and 32 on the side into which the suction pipe 16 and the return pipe 17 are inserted is smaller than the pitch L between the suction port 5 and the return port 6 of the water supply device 1, and therefore the diameter of the well 19. Is smaller than a predetermined diameter corresponding to the pitch L between the suction port 5 and the return port 6 of the water supply device 1, without reducing the interval between the suction piping 16 and the return piping 17. 16 and the return pipe 17 can be inserted into the well 19 having a small diameter while being kept in parallel.

  For this reason, an excessive force is not applied to the connection portion between the suction pipe 16 and the return pipe 17 and the suction port 5 and the return port 6 of the water supply device 1, that is, the connecting pipe 30, thereby eliminating the cause of water leakage. be able to.

  Conventionally, as shown in FIG. 5, a socket 13 for connecting the suction pipe 16 and a socket 14 for connecting the return pipe 17 are individually separated, and the sockets 13, 14 are individually connected to the casing 2. However, in this embodiment, the connecting tube 30 is formed in an integral cylindrical shape having a pair of connection holes 31 and 32, and this single unit is a single unit. It is only necessary to attach the connecting pipe 30 to the casing 2. Therefore, the attaching operation can be performed easily and efficiently, and the flange 34 of the connecting pipe 30 is fastened to the casing 2 with the bolts 36 at four equal positions. Can be attached stably.

The top view which shows the state which attached the connecting pipe which concerns on one Embodiment of this invention to the water supply apparatus for wells. Sectional drawing of the connecting pipe shown in FIG. The front view of the connecting pipe shown in FIG. The rear view of the connecting pipe shown in FIG. The top view for demonstrating background art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Water supply apparatus 2 ... Casing 3 ... Motor 5 ... Suction port 6 ... Return port 7 ... Discharge port 8 ... Automatic pressure control valve 16 ... Suction pipe 17 ... Return pipe 19 ... Well 30 ... Connecting pipe 31.32 ... Connection hole 33 ... Cylindrical body 33a ... Base 34 ... Flange 36 ... Bolt

Claims (2)

Attached to the suction port and return port that are arranged in the well water supply device so as to be arranged at a constant pitch, and used to connect the suction pipe and the return pipe for insertion into the well to the suction port and the return port A connecting pipe,
The cylindrical body is formed in an integral cylindrical shape having a pair of connecting holes, one end side in the axial direction of the cylindrical body is a base connected to the suction port and the return port, and the other end side is the suction pipe and the return pipe. In the base portion, the pitch of the pair of connection holes is the same as the pitch of the suction port and the return port of the water supply device, and in the plug portion, A connecting pipe used for a water supply device for a well, wherein a pitch of a pair of connection holes is smaller than a pitch of a suction port and a return port of the water supply device.   The connecting pipe used for the water supply device for wells according to claim 1, wherein the pipe is integrally formed of vinyl chloride.

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