JPS6367038B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of a submersible pump device with a built-in operation panel, which is operated and stopped by two float switches.

Conventionally, a submersible pump device in which a single short rod with a starting float switch attached to the upper part is attached to the pump so that the vertical position can be adjusted freely by bolt or pin operation, and the float position on the short rod can be changed. A submersible pump device with a built-in operation panel was installed.

However, when changing the float position in these pump devices, it is necessary to either go down into the tank after draining the water in the tank each time, or raise the pump and make the adjustment. In any case, the operation is extremely troublesome and requires a lot of time.

In view of the above-mentioned current situation, the present invention includes a cord led out from an operation panel built into a pump, a starting float switch attached to the tip of the cord, and a vertical long tube to which the middle part of the cord is attached. It is characterized by comprising a support device provided on the side of the pump and equipped with a guide means for guiding the elongated tube up and down, and a locking means for locking the elongated tube at a desired elevating position,
This invention relates to a submersible pump device with a built-in operation panel in which the control water level can be easily changed by changing the vertical position of a starting float switch by manually pushing and pulling a long pipe from the top of the water tank.

To explain in detail based on the illustrated embodiment, 1 is a submersible pump to which an L-shaped bracket 2 is fixed, and 3 is a long pipe fixing fitting to which the lower part of a long pipe 4 is fixed. Reference numerals 5 and 6 denote float switches for starting and stopping, which are attached to the ends of two cords 5a and 6a, respectively, which are led out from an operation panel 1a built into the pump 1 through a head cover 1b. Among these, the starting float switch 5 is supported by the long tube 4 so that it can float and hang by anchoring the vicinity of the tip of the cord 5a to a suitable position above the fixing fitting 3 of the long tube 4,
Furthermore, the stop float switch 6 is attached to a bracket 7 that fixes the vicinity of the tip of the cord 6a to the lower part of the pump 1.
It is supported by the pump 1 so that it can float and hang.

Reference numerals 8 and 9 denote first and second links, whose respective ends are pivotally supported on the bracket 2 and the long tube fixing fitting 3, and the fixing fitting 3 changes the position up and down while maintaining the vertical state of the long tube 4. As much as possible, they are connected in the form of parallel links. Of these, the first link 8 extends at least the pivot shaft 2a on the bracket 2 side and connects the C ring 1 via a compression spring 10 and a flat washer 11 as appropriate.
2 allows the link end on this side to move in the axial direction.

Reference numeral 13 designates a wavy leaf spring for holding the first link 8 which is appropriately fixed on the bracket 2, and is wavy so as to correspond to the raised position of the first link 8 shown by the solid line in FIG. A stepped portion is formed so that the first link 8 can be held at each position. As described above, the support device for the long tube 4 includes the guide means consisting of the bracket 2, the long tube fixing fitting 3, the first and second links 8 and 9, and the locking means consisting of the wavy leaf spring 13. It is made up of more.

As shown in FIG. 1, when the upper end of the long tube 4 is pushed down at the upper position of the starting float switch 5 when the submersible pump 1 is installed vertically, the first
While the link 8 moves toward the end of the shaft 2a against the compression spring 10, it overcomes the stepped portion of the wavy leaf spring 13 and is held in the lower groove as shown by the two-dot chain line in FIG.
This causes the starting float switch 5 to reach the sewage level control position.

To move from the lower level to the upper level, it is sufficient to simply pull up the long tube 4 upward, contrary to the above.

FIG. 3 shows an embodiment of a support device having a structure different from that of the support device for the long tube 4 in the first embodiment, in which an appropriate number of semicircles are provided on the outer periphery of the pivot portion of the first link 108 on the side of the bracket 102. A notch 108a is cut out, and a compression spring 111 built in a housing 110 fixed on the bracket 102 on the side of the pivot engages with the semicircular notch 108a to prevent rotation of the first link 108. A ball 112 is pressed against the bracket 102, the long pipe fixing fitting (not shown), the first and second links 108,
109 and the semicircular cutout 1
08a, a compression spring 111, and a locking means consisting of a notch mechanism composed of a ball 112.

In this case as well, the position of the float switch 5 can be easily changed by pushing and pulling the long tube 4 against the spring force of the compression spring 111.

FIG. 4 shows yet another embodiment of the support device, in which a through hole 202a is vertically cut in a holding fitting 202 fixed to the submersible pump 1.
Seals 208 are fitted to the upper and lower ends of 02a, and semicircular grooves 204a are cut out at appropriate vertical intervals on the lower outer periphery of the elongated rod 204, which replaces the elongated tube 4, and the elongated rod 204 lower part with the seal 2
08, 208 into the through hole 202a, and is engaged with the semicircular groove 204a by the compression spring 209 built into the hole 202b drilled in the center side of the holding fitting 202. A ball 210 is pressed against the ball 204 so as to hold the ball 204 in place. However, the support device in this embodiment includes a guide means consisting of the holding fitting 202, the through hole 202a, and the seal 208, the hole 202b,
Compression spring 209, ball 210 and semicircular groove 20
4a. still,
The elongated rod 204 may be inserted and fixed into the lower part of the elongated tube 4 and connected in a single shape.

In this case, the holding metal fitting 202 directly holds the long bar 204 without using the parallel links as in the first and second embodiments, and the float switch 5 is attached below the long bar 204 as described above, and the operation procedure is as follows. are exactly the same.

FIG. 5 shows an example of use in which two submersible pumps with floats are installed.
are installed oppositely at the bottom of the water tank P, and the long pipe 304,
The upper part of 304' protrudes above the cover plate C, and the pump 30
0 is used to control the water level, and pump 300' is used to control the water level.

In this pump device, only pump 300' is operated during normal use when the amount of inflow water is small, and when the amount of inflow increases, such as during heavy rain, pump 300' is operated.
In addition to the operation of 0', the pump 300 is also operated automatically, so only one side is used constantly and the other side is used as a backup, but it is possible to average the life of the pump. In order to achieve this, switching between the two can be performed periodically by operating a long pipe from outside the tank, or both can be operated at the sewage level if necessary, such as in an emergency.

As detailed above, when using the pump device of the present invention, the controlled water level can be easily changed by simply pushing and pulling the long pipe from outside the tank, and unlike conventional pumps, the water level in the tank can be changed once. After discharging everything or lifting the pump, there is no need to change the mounting position of the float by operating bolts or pins, and therefore the time required for switching is only seconds. This makes management very easy.

[Brief explanation of drawings]

Fig. 1 is an external side view showing the submersible pump device of the present invention, Fig. 2 is a sectional view taken from A to A in Fig. 1, and Figs. 3 and 4 are details of main parts showing another embodiment of only the support device section. FIG. 5 is a layout diagram showing an example of use in which two submersible pump devices are installed. In the figure, 1 is a submersible pump, 2 is a bracket, 3 is a long pipe fixing fitting, 4 is a long pipe, 5 and 6 are float switches for starting and stopping, 8 and 9 are first and second links, 13 indicates a wavy leaf spring.

Claims (1)

[Scope of Claims] 1. A cord led out from an operation panel built into the pump, a starting float switch attached to the tip of the cord, a vertical long tube to which the intermediate portion of the cord is attached, and the pump. An underwater submersible with a built-in operation panel, characterized by comprising a support device provided on a side and equipped with a guide means for guiding the elongated tube up and down and a locking means for locking the elongated tube at a desired elevating position. pump equipment. 2. The support device includes a bracket fixed to the side of the pump, a long tube fixing fitting fixed to the long tube, and both ends of the guide means are pivotally connected to the bracket and the long tube fixing fitting, respectively. and the locking means is constituted by a wavy leaf spring which is fixed to the bracket and has one of the parallel links in close contact with the wavy stepped portion by elastic biasing. A submersible pump device with a built-in operation panel as described in Scope 1. 3. The support device includes a bracket fixed to the side of the pump, a long tube fixing fitting fixed to the long tube, and both ends of the guide means are pivotally connected to the bracket and the long tube fixing fitting, respectively. and the locking means is configured such that a ball provided on the bracket is fitted into a semicircular notch formed at one bracket side end of the parallel link with an elastic force. A submersible pump device with a built-in operation panel according to claim 1, which is configured by a notch mechanism. 4. The support device connects the guide means via a seal that is fixedly attached to the side of the pump, has a vertical through hole, and arranges a long rod in place of the long tube above and below the through hole. The locking means is configured by a holding metal fitting inserted into the through hole in a honeycomb shape, and the locking means is elastically biased into a hole drilled in communication with the through hole so that the built-in ball can be inserted into the through hole. A submersible pump device with a built-in operation panel according to claim 1, comprising a notch mechanism that is engaged with semicircular grooves cut in a plurality of places in the long rod.