JPH028174Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a pressure gauge having an indicating mechanism for indicating a set pressure range in relation to a scale plate in order to supply appropriate pressure to pneumatic equipment.

(Problems to be solved by the prior art and invention) Conventional pressure gauges with a set pressure range indication mechanism have two methods: one in which the pointers indicating the upper and lower limits are mounted directly on the scale plate, and the other in which the pointers are attached between the outer cylinder and the transparent plate. There is a method in which a protective cover is attached.

In the former method, in order to adjust the indicating pointer, the transparent plate was removed and the indicating mechanism was moved directly, which could damage the pointer or the transparent plate, and the time required to adjust the indicating mechanism was wasted. It takes a lot, and
There were drawbacks such as the need for special tools.

In addition, in the latter method, the outer cylinder and the transparent plate are held together by a protective cover, and when the protective cover is removed to adjust the indicator, the outer cylinder and the transparent plate are separated, so the indicator There is a risk of loss or damage to the indicator, and the indicator pointer moves when the protective cover is attached after adjustment, making it impossible to accurately indicate the range.

An object of the present invention is to provide a pressure gauge having a set pressure range indicating mechanism that allows the set pressure range to be set simply and accurately.

(Means for Solving the Problems) In order to achieve the above object, a pressure gauge having a set pressure range indicating mechanism according to the present invention will be described in conjunction with an embodiment as follows.

The pressure gauge having the set pressure range indicating mechanism according to the present invention has a first set pressure range indicating mechanism in relation to the scale plate 5, 15, 25 indicating the position of the indicating pointer 6 which is rotated by the pressure detected by the pressure receiving part of the pressure gauge body 1. The setting value and the second
In a pressure gauge having a set pressure range indicating mechanism having an indicating mechanism for indicating a set value, the outer cylinders 2 and 12 rotate around the pressure gauge main body 1 or the transparent plate 27 rotates with respect to the outer cylinder 22. a rotating part that rotates around the central axes of the scale plates 5, 15, 25 and the indicating pointer 6, and an indicator part that indicates the first set value that rotates around the periphery of the scale plate 5. The fixed pointers 3, 13 are frictionally coupled to the scale plate, and the first pointers 3, 13 are engaged with the rotating portion and moved together to laterally engage with the fixed pointers 3, 13. An indicator part that indicates the second setting value by pushing and turning it to a setting position and moving it further is composed of movable pointers 4, 14, and 24 that are moved to the second setting position in front of the outer periphery of the scale plate. has been done.

(Example) Hereinafter, the present invention will be explained in more detail with reference to the drawings and the like.

FIG. 1 is a front view of a first embodiment of a pressure gauge having a set pressure range indicating mechanism according to the present invention.

FIG. 2 is a side view showing a part of the embodiment described above.

FIG. 3 is a partially enlarged sectional view showing the relationship between the scale plate and the fixed pointer in the embodiment, FIG. 4 is a partially enlarged sectional view showing the relationship between the rotating part and the movable pointer in the embodiment, and FIG. FIG. 6 is a partially enlarged sectional view showing an engaged state when the movable pointer of the embodiment presses the fixed pointer.

The pressure gauge according to this embodiment includes a pressure gauge body 1, an outer cylinder 2, a fixed pointer 3, a movable pointer 4, a scale plate 5, an indicator pointer 6, and a transparent plate 7.

The pressure gauge main body 1 includes a pressure receiving part such as an empty cup (not shown) and an enlargement mechanism for magnifying minute displacements caused by the pressure receiving part.

The displacement of the expansion mechanism of the pressure body 1 is indicated by the indicating pointer 6 on the pressure scale on the scale plate 5.

The scale plate 5 is supported by the pressure gauge main body 1.

A recess 1a is provided on the outer periphery of the pressure gauge main body 1, and a protrusion 2a extending from the base of the outer cylinder 2 is fitted into the recess 1a. Therefore, the outer cylinder 2 is rotatable with respect to the pressure gauge main body 1, and can be prevented from being pulled out and separated in the axial direction.

The fixed pointer 3, as shown in FIG.
The scale plate 5 is connected by friction so as to sandwich the outer periphery of the scale plate 5, and is provided so as to rotate around the periphery.

The indicating portion 3a of the fixed pointer 3 is a portion for indicating the first set pressure, and has an acute-angled tip so that it moves on the front surface of the scale plate 5 to indicate the scale. A click portion 3b that provides a click to the fixed pointer 3 on the back surface of the scale plate 5 in correspondence with the indicator portion 3a.
are provided, and the scale plate 5 is sandwiched therebetween.
Furthermore, the fixed pointer has a protrusion 3c that engages with a movable pointer 4, which will be described later.

As shown in FIG. 4, the movable pointer 4 is inscribed in the outer cylinder 2, inserted into the inner groove 2b of the groove in which the transparent plate 7 of the outer cylinder 2 fits, and is sandwiched between the groove 2b and the transparent plate 7. Thus, it is fixed to the outer cylinder 2.

Bent and raised indicator portion 4a at the other end of the movable pointer 4
The tip has an acute angle and can indicate the scale of the scale plate 5.

The smooth side surface of the indicator 4a of the movable pointer 4 can be engaged with the projection 3c of the fixed pointer 3 from the lateral direction.

Next, the operation for setting the pressure instruction range will be explained.

By rotating the outer tube 2 relative to the main body 1, the movable pointer 4 fixed to the inner surface of the outer tube 2 also rotates together, so that the side surface of the indicator 4a of the movable pointer 4 becomes the protrusion of the fixed pointer 3. 3c (Fig. 5)
Push and turn to bring the fixed pointer 3 to the desired setting value.

Thereafter, the outer cylinder 2 is further rotated in the opposite direction to the previous movement direction, and the second set value is indicated by the indicating portion 4a of the movable pointer 4.

In the case of FIG. 1, the upper limit of the setting instruction range is indicated by the indicator 3a of the fixed pointer 3, and the lower limit is indicated by the movable pointer 4.
The upper limit value may be indicated by the movable pointer 4, and the lower limit value may be indicated by the fixed pointer 3.

In this manner, in this embodiment, the set pressure range can be specified simply by rotating the outer cylinder 2, so that the range can be specified easily and accurately.

Further, the movable pointer 4 and the fixed pointer 3 can be moved without performing any operations such as removing the transparent plate 7. Therefore, there is no risk of dirt or the like getting into the pressure gauge, and the causes of malfunctions are reduced.

FIG. 6 is a front view showing a part of a second embodiment of a pressure gauge having a set pressure range indicating mechanism according to the present invention.

In this second embodiment, the fixed pointer 13 and the movable pointer 14 have the same shape, and are coupled by friction so that the outer peripheral edge of the scale plate 15 is sandwiched between them.

The fixed pointer 13 is pushed in the circumferential direction by the movable pointer 14, thereby sliding in the circumferential direction.

Both the fixed pointer 13 and the movable pointer 14 have a pointing portion having a symmetrical acute angle portion, and a recessed portion is provided on the end face opposite to the pointing portion, and both are attached to the outer periphery of a scale plate 15. .

The concave portion of the movable pointer 14 fits into a convex portion provided on the inner surface of the outer tube 12, and as the outer tube 12 rotates, it is guided by the outer periphery of the scale plate 15 and rotates, causing the fixed pointer 13 to slide. and bring it to the first setting position.

Then, the movable pointer moves to another setting position (second setting position) and gives an instruction.

According to this embodiment, since the fixed pointer and the movable pointer can be of the same shape, manufacturing convenience can be achieved.

FIG. 7 is a side sectional view showing a part of a third embodiment of a pressure gauge having a set pressure range indicating mechanism according to the present invention.

In this embodiment, the outer cylinder 22 is fixed to the main body, and a transparent plate 27 is provided to be rotatable with respect to the outer cylinder 22. This transparent plate 27 (rotating part) and the movable pointer 24 are connected It is engaged.

The outer cylinder 22 is provided with a recess 22a, and the recess 22a is fitted and guided by a projection 27b of a projection 27a of the transparent plate 27, which is a rotating part.
Rotate against.

The tip of the protruding portion 27a of the transparent plate 27, which is a rotating portion, fits into the groove of the movable pointer 24 to rotate the movable pointer together.

A fixed pointer (not shown) is frictionally coupled to the scale plate 25, and the indicator is positioned on the outer peripheral surface of the scale plate 25 and rotated.

According to this embodiment, since the only rotating part is the transparent plate on the front surface, it is less likely to be rotated than the outer cylinder, so that the movable pointer is less likely to be inadvertently moved to the set position.

Various modifications can be made to the embodiments described in detail above within the scope of the present invention.

The rotating part (transparent plate, etc.) is designed so that it can take two positions: a rotating position where it can rotate relative to the main body, and a rotation restriction position where rotation is restricted, and the fixed pointer is set by the movable pointer in the rotating position. After pushing and moving the movable pointer to a first set position, and then bringing the movable pointer to a second set position, the rotating part can be brought to a rotation restriction position to prevent the movable pointer from moving. .

Further, the structure of the fixed pointer only needs to be frictionally coupled to the scale plate so that it does not move unless pushed by the movable pointer, and its shape and structure can take various forms other than those shown in the drawings.

In the first embodiment, the protrusion 3c is provided, but any shape that can be pushed by the movable pointer from the circumferential direction is sufficient without the use of a special protrusion.

They may have the same shape and be connected to the scale plate in the same way as in the second embodiment.

(Description of Effects) As explained in detail above, the pressure gauge having the set pressure range indicating mechanism according to the present invention consists of an outer cylinder that rotates around the pressure gauge body or a transparent plate that rotates with respect to the outer cylinder. A rotating part that rotates around a central axis of the scale plate and the indicating pointer, and an indicator unit that indicates the first setting value are coupled to the scale plate by friction so as to rotate around the periphery of the scale plate. a fixed pointer that is engaged with the rotating portion and moved together, engages the fixed pointer from the lateral direction, is pushed and turned to the first setting position, and is further moved to the second setting position. An indicator indicating the set value is comprised of a movable pointer that is moved to the second set position in front of the outer peripheral edge of the scale plate.

Therefore, the first setting value can be set only by operating the rotating part that forms part of the sealed container, and the second setting value can be set by further moving the movable pointer with the rotating part. .

[Brief explanation of the drawing]

FIG. 1 is a front view of a first embodiment of a pressure gauge having a set pressure range indicating mechanism according to the present invention. FIG. 2 is a side view showing a part of the embodiment described above. FIG. 3 is a partially enlarged sectional view showing the relationship between the scale plate and the fixed pointer of the embodiment. FIG. 4 is a partially enlarged sectional view showing the relationship between the rotating part and the movable pointer of the embodiment. FIG. 5 is a partially enlarged view showing the engagement state when the movable pointer of the embodiment presses the fixed pointer. FIG. 6 is a front view showing a part of a second embodiment of the pressure gauge having a set pressure range indicating function according to the present invention. FIG. 7 is a side view showing a portion of a third embodiment of the pressure gauge having a set pressure range indicating function according to the present invention. 1... Pressure gauge body, 2, 12, 22... Outer cylinder,
3, 13... fixed pointer, 4, 14, 24... movable pointer, 5, 15, 25... scale plate, 6... indication pointer, 7, 27... transparent plate.

Claims (1)

[Scope of utility model registration request] A set pressure range indicating mechanism that has an indicating mechanism that indicates a first set value and a second set value in relation to a scale plate that indicates the position of an indicating pointer that is rotated by the pressure detected by the pressure receiving part of the pressure gauge body. a rotating part that rotates around a central axis of the scale plate and the indicator pointer, which comprises an outer cylinder that rotates around the pressure gauge body or a transparent plate that rotates with respect to the outer cylinder; A fixed pointer is coupled to the scale plate by friction so that the indicator indicating the first setting value rotates around the periphery of the scale plate, and a fixed pointer is engaged with the rotary part and moved together. The indicator section engages with the fixed pointer from the lateral direction, pushes it to the first setting position to set it, and moves further to indicate the second setting value. 1. A pressure gauge having a set pressure range indicating mechanism, characterized in that it is composed of a movable pointer that can be moved to a set position.