JPS5834322A - Recorder for flowmeter - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a recording device used with a type of flowmeter in which an indicator shaft rotates in accordance with the flow rate. It can be recorded moment by moment on a circular piece of paper that rotates slowly and continuously at high speed. now,
Referring to the drawings, as shown in FIGS. 1 and 2, the recording device 10 of the present invention is used with a flowmeter 12 having a rotating shaft 14. As shown in FIGS. The rotational position of the shaft 14 indicates the flow rate. Since the flowmeter 12 is of a known type equipped with rotary blades, detailed description thereof will be omitted.

The recording device 10 includes a housing 13 consisting of a back wall 14A, a side wall 16, a top wall 18, and a bottom wall 20.
2 to close (Figure 2 shows the open state). The door 22 is hinged to the side wall 16 of the housing 13 with a hinge 24.

A back wall 14A of the housing 16 is fixed to the flow meter 12. A latch is mounted around the periphery of the housing 13 to keep the door 22 closed when desired. Furthermore, when door 22 closes,
The door cooperates with the housing to form an interior room 28 with a rectangular cross section, but a window 30 in the door 22 allows a free view of the interior from the outside.

As shown in FIGS. 1, 2 and 6, the recording device is located on the back wall 14A.
The rectangular plate 64 is fixed by the boss 36 and screws 68 so that the plate 34 is parallel to the closed door 22.

As shown in FIG. 6, the shaft 40 is rotatably supported by a bearing 42 fixed to the back surface 44 of the plate 34.
4 has a portion 46 projecting outward from the front surface 48 of 4. The opposite end of the shaft 40 connects the connecting piece 5 to the rotation shaft 14 of the flowmeter.
0 (FIG. 2), the shaft 40 can rotate together with the rotating body 14 of the flowmeter.

A motor 52 with a shaft 54 as shown in FIGS.
is fixed to the back surface 44 of the plate 64, and the shaft 54 is inserted into the hole 56 of the plate 64.
It protrudes forward from the front surface 48 through. In the present invention, it is preferable that the driving source 52 rotate once a day using a clock.
−・Rotate at a constant speed.

The shaft 54 of the clock 52 is a bifurcated shaft provided with a groove 58, and circular recording papers 60 each having a semicircular hole 62 fitted therein are attached to the bifurcated shaft of the clock. Portion 64 of paper 60 is located within groove 58 of the bifurcated shaft. With this configuration, the paper 60 is gradually rotated by rotation of the shaft 54. - set of restraining pieces 66 (first
It is preferable to fix the paper 60 to the plate 64 and press down the outer edge of the paper 60 slightly to keep the paper 60 parallel to the plate 64.

As shown in FIGS. 1, 3, and 4, the recording arm shaft 70 is rotatably inserted into the sleeve IJ-b 72.

The sleeve 72 is fixed to the back surface 44 of the plate 64 and is further attached to the shaft.
- A portion 76 projects forward from the front surface 48 of the plate 64. - A stop 78 with an upwardly projecting ear 80 is fixed to the rear end of the shaft 70 by a screw 82 (FIG. 6).

The ear 80 cooperates with the protruding boss 84 of the sleeve 72 to allow the shaft 70 to swing between two swing positions shown in dotted and solid lines in FIG.

As shown in FIGS. 1 and 6, the recording arm 86 has one end connected to the shaft 70.
It is fixed to the outwardly protruding portion 76 with a screw 88. The recording arm 86 also includes a spring piece 90 whose lower end projects into a portion 92 of the recording device 94 and the spring 90 bends to press the recording pen 96 against the paper 60.

The recording arm 94 is a so-called felt-tip pen (of course, other suitable pens can also be used). Further, the restraining piece 78 (FIG. 4) restrains the rotation of the arm 96 between the inner diameter and the outer diameter of the circular paper 60.

The length of the arm 86 is designed so that it can radially cross the circular paper 60.

As shown in FIGS. 1 and 6, the arm 100 is fixed to the outward protrusion 46 of the shaft 40 via a screw 102, and the arm 100 is attached to the shaft 40.
Therefore, it was designed so that it could be rotated around the rotation axis of the flowmeter. The negative end of the arm 100 is rotated by the shaft 400 to form a scale plate 106.
A pointer 104 is formed that moves across the area. A scale plate 106 indicates the amount of liquid that has passed through the flowmeter 12, and a pointer 104 and a scale plate 1G
6 can be seen from the window 60 of the front door 22. arm 10
0 has a portion 110 projecting radially from the shaft 40 at a position opposite to the pointer 104, in which a longer groove 112 is bored.

As shown in FIG. 1, FIG. 6, and FIG.
At 6, the arm 100 is pivoted into a groove 112. As shown in FIG. 6, a screw 118 screwed into a nut 120 is used at the pivot point between the connecting rod 114 and the groove 112. Furthermore, screw 11
A nut 120 with an 8-piece is adjustably connected along the groove 112 of the arm 100 so as not to hinder the rotation of the shaft 14.

As shown in FIG. 6, the other end 128 of arm 114 (FIG. 1) is also pivotally connected to recording arm 86 by a pin 160 at a position radially spaced from shaft 70.

To explain the operation, the rotational position of the shaft 40 by the arm 100, the arm 114, and the recording arm 86 determines the rotational position of the recording arm 86. For example, when arm 100 is in a zero flow position, arm 114 rotates recording arm 86 radially to its innermost position. Conversely, when the arm 100 rotates counterclockwise (FIG. 1) to indicate the maximum flow rate, the arm 100 becomes the recording arm 86.
is moved radially through arm 114 to the outermost position. A circular piece of paper 60 indicates the change in flow rate during a certain period of time.

As shown in FIGS. 1 and 5, a lifting piece 140 is provided which is pivotally connected to an L-shaped piece fixed on the plate 64 with a pin 142. Its lower portion extends below the recording arm 94 and allows the puller 140 to rotate between a pulled-up position (dotted line) and a non-pulled position (solid line). At the pull-up position, pull up the recording arm 94 to the paper 6.
The paper 60 can be replaced by raising it from 0. new paper 6
0 is mounted on the motor shaft 54, the lifting piece 140 returns to the lower non-lifting position and the tip 96 of the recording arm 94 comes into contact with the paper 60 again.

As is clear from the above, according to the present invention, the flow rate within a certain period of time can be recorded, and the construction cost of the device is not only low, but also the maintenance cost is low. Furthermore, not only can the device of the present invention be used in various flowmeters, but also the swing angle of the recording arm 94 can be adjusted to be large or small depending on the position of the arm 114 attached to the groove 112 of the arm 100.

[Brief explanation of the drawing]

FIG. 1 is a front view of the device of the present invention, FIG. 2 is a partial side view,
6 is a side view along line 3-3 in FIG. 1, FIG. 4 is a partial front view, FIG. 5 is a side view along m5-5 in FIG. 1, and FIG. 6 is a side view along line 6 in FIG. -6 is a side view. 10. Recording device, 12 so-called flow rate, 14 pointer axis, 50
・ Connecting piece, 52 Clock, 54 Forked shaft at 11 o'clock,
60 Circular paper, 86.94 Recording arm, 100
Indicator arm, 106 ・Scale plate, 114 Link rod, 140・
Record arm lift piece. Patent Applicant Nils O Rosain Fig-4 Fig-6 128-

Claims (1)

[Claims] An indicator arm that indicates the flow rate is fixed to a shaft connected to the indicator shaft of the flowmeter, which cooperates with a flow rate scale plate provided on the recording device, and this is connected to the recording arm via a horizontal connecting rod to control the indicator arm. A recording device for a flowmeter that transmits rotational motion to a recording arm and records data between the center and the periphery of a circular piece of paper that rotates slowly and continuously at a constant speed.