Pressure gauge capable of being externally adjusted and indicated

Abstract

The utility model discloses a pressure gauge capable of external adjustment indication, comprising a pressure gauge main body, the pressure gauge main body is slidably sleeved with an adjusting ring used for external adjustment indication, and the adjusting ring is provided with an observation hole used for external observation of a pressure gauge dial plate. According to the utility model, the pointer is arranged between the first triangular indication board and the second triangular indication board by rotating the adjusting ring, and the pointer can be used as long as the pointer exceeds the range between the first triangular indication board and the second triangular indication board, so that the pressure gauge can be conveniently and rapidly adjusted. According to the utility model, the pointer can be observed from the outside, the observation is more convenient, only the adjusting ring needs to be adjusted, the problem of leakage caused by manual adjustment of the pointer in the prior art is avoided, and the adjusting ring is more convenient to adjust and disassemble.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure gauges, in particular to a pressure gauge capable of externally adjusting indication. Background Art

[0002] The pressure gauge uses the elastic deformation of the sensitive element in the gauge, and then the conversion mechanism in the gauge movement transmits the pressure deformation to the indicator needle, causing the indicator needle to rotate to display the pressure. The application of pressure gauge is relatively common. At present, traditional pressure gauges (such as Figure 1-3 As shown in the figure, it can be seen that the indicating mechanism is composed of four parts (O-ring 7, copper nut 8, indicating needle 9, gasket 10), which are installed on the surface of the pressure gauge by riveting. When adjusting, the indicating needle can be adjusted to a certain indicating range by manually twisting the copper nut 8. The structural disadvantages of the traditional pressure gauge are:

[0003] 1. There are many parts used, and the cost is high;

[0004] 2. It is an oil-filled pressure gauge with a sealed structure inside. The hole at the O-ring 7 and the shaft are sealed by a sealing ring, which is prone to leakage.

[0005] 3. When the indicator needle is out of range, it cannot be observed from a distance and must be observed at a close distance. In addition, the indicator needle must be adjusted to the numerical range, which is inconvenient in practice. Utility Model Content

[0006] The utility model aims to provide a pressure gauge with externally adjustable indication. By setting an adjustment ring and manually adjusting the adjustment ring, the indication of the indicator needle can be more intuitively observed from the outside, without the need to manually adjust the indicator needle, thus solving the problems in the prior art.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A pressure gauge with externally adjustable indication comprises a pressure gauge body, an adjustment ring for externally adjusting indication is slidably sleeved on the pressure gauge body, an observation hole for externally viewing the pressure gauge dial is provided on the adjustment ring, and two spaced-apart triangular indicator plates are arranged on the end face of the adjustment ring.

[0009] Furthermore, the adjustment ring is provided with a groove for the pressure gauge body to be nested.

[0010] Furthermore, the triangular indicator sign includes a first triangular indicator sign and a second triangular indicator sign, and an indication range is formed between the first triangular indicator sign and the second triangular indicator sign.

[0011] Furthermore, the adjustment ring, the first triangular indicator plate and the second triangular indicator plate are respectively set to three different colors.

[0012] Furthermore, the adjustment ring is a plastic part.

[0013] Furthermore, one of the arrows in the first triangular indicator and one of the arrows in the second triangular indicator both point inwardly to the numerical range of the dial.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model changes the traditional indication adjustment method. An adjustment ring is put on the pressure gauge. The adjustment ring, the first triangular indicator plate and the second triangular indicator plate are set to three colors that are easy to identify. By rotating the adjustment ring, the indicator needle is placed between the first triangular indicator plate and the second triangular indicator plate. As long as the indicator needle exceeds the range between the first triangular indicator plate and the second triangular indicator plate, it can be observed from the outside. There is no need to get close to observe the value like the traditional method. The observation is more convenient. The utility model only needs to adjust the adjustment ring, which also avoids the leakage problem caused by the traditional manual adjustment of the indicator needle.

[0016] 2. The utility model arranges the adjustment ring to have a groove structure. Since it is made of plastic, the cost is low and it has a certain elasticity, so it is convenient to adjust and disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the front view of the traditional pressure gauge;

[0018] Figure 2 It is a side view of a conventional pressure gauge;

[0019] Figure 3 It is a cross-sectional view of a conventional pressure gauge;

[0020] Figure 4 It is a front view of the adjustment ring of the utility model;

[0021] Figure 5 It is a schematic diagram of the assembly of the adjusting ring and the pressure gauge of the utility model;

[0022] Figure 6 The utility model shows that the adjusting ring can be adjusted to both sides;

[0023] Figure 7 This is a schematic diagram of an adjustment state of the adjustment ring of the utility model;

[0024] Figure 8 This is a schematic diagram of another adjustment state of the adjustment ring of the utility model.

[0025] In the figure: 1. Pressure gauge body; 2. Adjustment ring; 3. Observation hole; 4. Groove; 5. First triangular indicator plate; 6. Second triangular indicator plate; 7. O-ring; 8. Copper nut; 9. Indicator needle; 10. Gasket. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 4-5 A pressure gauge with externally adjustable indication includes a pressure gauge body 1, an adjustment ring 2 for externally adjusting indication is slidably sleeved on the pressure gauge body 1, and the adjustment ring 2 can be manually rotated by sliding sleeve. An observation hole 3 for externally viewing the pressure gauge dial is opened on the adjustment ring 2, and the observation hole 3 is circular, just showing the numerical area of ​​the pressure gauge. Two spaced-apart triangular indicator signs are arranged on the end surface of the adjustment ring 2, and the triangular indicator signs include a first triangular indicator sign 5 and a second triangular indicator sign 6. An indication range is formed between the first triangular indicator sign 5 and the second triangular indicator sign 6. One of the arrows in the first triangular indicator sign 5 and one of the arrows in the second triangular indicator sign 6 both point inwardly to the numerical range of the dial. There are two ranges between the first triangular indicator sign 5 and the second triangular indicator sign 6, wherein the small range ( Figure 6 The area shown in a is the adjustment range.

[0028] A groove 4 for nesting the pressure gauge body 1 is provided on the adjustment ring 2, which can prevent the adjustment ring 2 from falling off the pressure gauge body 1 and is easy to disassemble. The adjustment ring 2 can be directly removed when not needed, and the adjustment ring 2 is installed on the outside of the pressure gauge, which will not affect the internal structure of the pressure gauge and does not need to manually adjust the direction of the indicator needle of the pressure gauge, thereby avoiding the occurrence of leakage.

[0029] The adjustment circle 2, the first triangular indicator sign 5 and the second triangular indicator sign 6 are set to three different colors respectively. For example, if the adjustment circle 2 is set to black, the first triangular indicator sign 5 can be set to red, and the second triangular indicator sign 6 can be set to green. In short, the colors are not fixed, as long as they are three colors that are easy to distinguish. This is more convenient to watch, so that you can see from the outside or from a distance whether the indicator needle is between the two arrows.

[0030] The adjusting ring 2 is a plastic part with low cost.

[0031] Adjustment process: See Figure 7-8 , turn the adjustment circle 2 to place the indicator needle 9 in the middle of the first triangular indicator sign 5 and the second triangular indicator sign 6. As long as the indicator needle exceeds the range of the first triangular indicator sign 5 and the second triangular indicator sign 6, it indicates that the pressure is abnormal. No matter where the indicator needle is, just turn the adjustment circle 2 to place the indicator needle in the middle of the first triangular indicator sign 5 and the second triangular indicator sign 6. As long as the indicator needle deviates from the range between the first triangular indicator sign 5 and the second triangular indicator sign 6, it indicates that the pressure is abnormal.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressure gauge with externally adjustable indication, comprising a pressure gauge body (1), characterized in that: An adjustment ring (2) for external adjustment indication is slidably sleeved on the pressure gauge body (1), an observation hole (3) for externally viewing the pressure gauge dial is provided on the adjustment ring (2), and two spaced-apart triangular indicator plates are provided on the end surface of the adjustment ring (2).

2. The pressure gauge with external adjustable indication according to claim 1, characterized in that: The adjustment ring (2) is provided with a groove (4) for the pressure gauge body (1) to be nested.

3. The pressure gauge with external adjustable indication according to claim 1, characterized in that: The triangular indicator sign comprises a first triangular indicator sign (5) and a second triangular indicator sign (6), and an indication range is formed between the first triangular indicator sign (5) and the second triangular indicator sign (6).

4. The pressure gauge with external adjustable indication according to claim 3, characterized in that: The adjustment ring (2), the first triangular indicator plate (5) and the second triangular indicator plate (6) are respectively set to three different colors.

5. The pressure gauge with external adjustable indication according to claim 1, characterized in that: The adjustment ring (2) is a plastic part.

6. The pressure gauge with external adjustable indication according to claim 3, characterized in that: One of the arrows in the first triangular indicator (5) and one of the arrows in the second triangular indicator (6) both point inwards to the numerical range of the dial.

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