A pressure gauge housing with a pressure upper limit indicator

Abstract

This utility model relates to the field of pressure gauge technology, and more particularly to a pressure gauge housing with a pressure upper limit indicator. The pressure gauge housing includes a body, an indicator needle, an adjusting bolt, a base, and a certificate of conformity display window. The adjusting bolt passes through the indicator needle through-hole and the annular through-hole and is threadedly connected to the base. The advantages of this utility model are: by setting the pressure gauge housing on the pressure gauge dial, the indicator needle is accurately positioned and fixed by tightening the adjusting bolt at the base of the indicator needle. The indicator needle can be quickly and accurately installed to the predetermined position along the strip-shaped through-hole to intuitively distinguish between safe and dangerous pressure values. Furthermore, a fixed position for displaying the certificate of conformity label is designed, avoiding wear and loss of the certificate due to pasting, detachment, etc., and ensuring the integrity and readability of the certificate information.

Description

Technical Field

[0001] This utility model relates to the field of pressure gauge technology, and in particular to a pressure gauge housing with a pressure upper limit indication mark. Background Technology

[0002] Pressure gauges, as commonly used pressure measuring instruments, are widely used in various fields such as industrial production, machinery equipment, and fluid transportation. Pressure gauge manufacturers typically support multi-color printing on the dial, including red, yellow, and green, to distinguish between safe, warning, and dangerous pressure values. However, if the dial colors are not differentiated during manufacturing, or if on-site processes are modified, requiring temporary alterations to the safe and dangerous pressure indication areas, then traditional pressure gauges cannot meet these needs.

[0003] An adjustable pressure gauge cover is a supplementary accessory for a pressure gauge. It not only protects the pressure gauge itself, but also affects the ease of use and the display of the instrument's qualification information to some extent.

[0004] The existing pressure gauge housings have certain shortcomings in their structural design, lacking indicators that provide real-time corresponding markings for safe and hazardous numerical ranges. Furthermore, there is a lack of a dedicated window for displaying the certificate of conformity label; the labels are usually fixed by adhesive tape, which is prone to falling off and wear, making it difficult to completely preserve and clearly display information such as the certificate of conformity and calibration date, thus affecting the user's ability to view and confirm the pressure gauge's status. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a pressure gauge housing with a pressure upper limit indicator that is easy to install and adjust.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a pressure gauge cover with a pressure upper limit indicator is provided, which is installed on the scale of the pressure gauge. The pressure gauge cover includes a body, an indicator needle, an adjusting bolt, and a base. The body has an observation window facing the scale area, and the edge of the body has an annular strip-shaped through hole around the observation window. The end of the indicator needle has an indicator needle through hole, and the adjusting bolt passes through the indicator needle through hole and the annular through hole and is threaded to the base.

[0007] Furthermore, in the pressure gauge housing with the pressure upper limit indicator, a label placement groove is also provided on the surface of the main body. The edge of the label placement groove is hinged with a label protective cover that covers the label placement groove. A transparent label window is provided on the label protective cover corresponding to the label area.

[0008] Furthermore, in the pressure gauge housing with the pressure upper limit indicator, the end of the label protective cover away from the hinge is provided with a magnetic latch, and the label placement slot is fitted with a magnetic absorbing piece corresponding to the position of the magnetic latch.

[0009] Furthermore, the pressure gauge housing with the pressure upper limit indicator also includes a fixing bolt. The side wall of the main body is provided with a fixing through hole. The fixing bolt is threadedly connected to the fixing through hole and abuts against the side wall of the pressure gauge after passing through the fixing through hole.

[0010] Furthermore, in the pressure gauge housing with the pressure upper limit indicator, the top of the fixing bolt is provided with an anti-slip protrusion.

[0011] Furthermore, in the pressure gauge housing with the pressure upper limit indicator, a rubber buffer layer is provided at the bottom of the fixing bolt.

[0012] Furthermore, in the pressure gauge housing with the pressure upper limit indicator, there are three indicator needles: a safety value indicator needle, a warning value indicator needle, and a danger value indicator needle.

[0013] Furthermore, in the pressure gauge housing with the pressure upper limit indicator, the surface of the indicator needle is provided with a fluorescent layer.

[0014] Furthermore, in the pressure gauge housing with the pressure upper limit indicator, the top of the adjusting bolt is provided with an anti-slip protrusion.

[0015] Furthermore, in the pressure gauge housing with the pressure upper limit indicator, the width of the strip-shaped through hole is 1.2-1.5 times the diameter of the indicator needle through hole, and the width of the base is greater than the width of the strip-shaped through hole.

[0016] The beneficial effects of this utility model are as follows: By setting a pressure gauge cover on the pressure gauge scale, the indicator needle is accurately positioned and fixed by tightening the adjusting bolt at the base of the indicator needle. The indicator needle can be quickly and accurately installed into the predetermined position along the strip-shaped through hole to intuitively distinguish between safe and dangerous pressure values. A fixed position for displaying the certificate of conformity is also designed. The indicator needle disassembly and assembly structure of this utility model effectively prevents the indicator needle from loosening or shifting, ensuring the accuracy and stability of the pressure data indicated by the indicator needle. The front of the cover has a transparent certificate of conformity compartment. The certificate of conformity can be placed directly inside the window, allowing users to clearly view the contents of the certificate, including the instrument number, calibration date, and calibration personnel, without opening the cover. This facilitates user confirmation of the pressure gauge's conformity status and avoids wear and loss of the certificate due to pasting or detachment, ensuring the integrity and readability of the certificate information. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a pressure gauge housing with a pressure upper limit indicator, according to a specific embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of the indicator needle of a pressure gauge housing with a pressure upper limit indicator, according to a specific embodiment of the present invention.

[0019] Figure 3 This is a specific embodiment of the present utility model. Figure 1 An enlarged view of point A;

[0020] Figure 4 This is a rear view of the mounting component of the pressure gauge housing with a pressure upper limit indicator, according to a specific embodiment of the present invention.

[0021] Figure 5 This is a specific embodiment of the present utility model. Figure 4 An enlarged view of point B;

[0022] Figure 6 This is a schematic diagram of the structure of the pressure gauge housing with the pressure upper limit indicator installed on the pressure gauge, according to a specific embodiment of the present invention.

[0023] Label Explanation:

[0024] 1. Body; 11. Strip-shaped through hole; 2. Indicator needle; 21. Indicator needle through hole; 3. Adjusting bolt; 4. Base; 5. Label placement slot; 6. Label protective cover; 7. Fixing bolt. Detailed Implementation

[0025] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0026] Please refer to Figure 1 and Figure 2 A pressure gauge housing with a pressure upper limit indicator is installed on the dial of the pressure gauge. The pressure gauge housing includes a body 1, an indicator needle 2, an adjusting bolt 3, and a base 4. The body 1 has an observation window facing the dial area. The edge of the body 1 has an annular strip-shaped through hole 11 around the observation window. The end of the indicator needle 2 has an indicator needle through hole 21. The adjusting bolt 3 passes through the indicator needle through hole 21 and the annular through hole and is threaded to the base 4.

[0027] As described above, the beneficial effects of this utility model are as follows: By installing a pressure gauge cover on the pressure gauge dial, the pressure gauge cover allows for accurate positioning and fixation of the indicator needle by tightening the adjusting bolt at the base of the indicator needle. The strip-shaped through-hole surrounds the observation window, allowing the indicator needle to be quickly and accurately installed into a predetermined position along the through-hole, thus visually distinguishing between safe and dangerous pressure values. The indicator needle assembly and disassembly structure of this utility model effectively prevents the indicator needle from loosening or shifting, ensuring the accuracy and stability of the pressure data indicated by the indicator needle.

[0028] Reference Figure 1 Furthermore, in the pressure gauge housing with the pressure upper limit indicator, a label placement groove 5 is also provided on the surface of the main body 1. The edge of the label placement groove 5 is hinged to a label protective cover 6 that covers the label placement groove 5. A transparent label window is provided on the label protective cover 6 corresponding to the label area.

[0029] As described above, the label placement slot 5 provides a dustproof and waterproof label storage space, and allows direct viewing of the certificate / calibration information through a transparent window, preventing labels from falling off.

[0030] Furthermore, in the pressure gauge housing with the pressure upper limit indicator, the label protection cover 6 is provided with a magnetic latch at the end away from the hinge, and the label placement slot 5 is fitted with a magnetic absorbing piece corresponding to the position of the magnetic latch.

[0031] As described above, the opening and closing structure of the protective cover enables one-handed opening and closing, improving operational convenience.

[0032] Furthermore, the pressure gauge housing with the pressure upper limit indicator also includes a fixing bolt 7. The side wall of the body 1 is provided with a fixing through hole, and the fixing bolt 7 passes through and is threaded into the fixing through hole and abuts against the side wall of the pressure gauge.

[0033] As described above, the fixing bolt 7 is set to achieve quick disassembly and assembly of the cover by lateral tightening, thus avoiding modification of the original structure of the pressure gauge.

[0034] Furthermore, in the pressure gauge housing with the pressure upper limit indicator, the top of the fixing bolt 7 is provided with an anti-slip protrusion.

[0035] As described above, the protruding ridge is designed to prevent the adjusting bolt 3 from slipping when it is manually tightened.

[0036] Furthermore, in the pressure gauge housing with the pressure upper limit indicator, the bottom of the fixing bolt 7 is provided with a rubber buffer layer.

[0037] As described above, the rubber buffer layer prevents the fixing bolt 7 from directly pressing on the side wall of the pressure gauge, thus avoiding damage to the paint surface, while also providing shock absorption and preventing loosening.

[0038] Reference Figure 1 Furthermore, in the pressure gauge housing with the pressure upper limit indicator, there are three indicator needles 2, namely a safety value indicator needle, a warning value indicator needle, and a danger value indicator needle.

[0039] As described above, multiple indicator needles can be used to visually distinguish between safe, warning, and dangerous pressure values.

[0040] Furthermore, in the pressure gauge housing with the pressure upper limit indicator, the surface of the indicator needle is provided with a fluorescent layer.

[0041] As described above, the above settings enable the indicator needle to light up automatically in dim environments, ensuring the visibility of the pressure zone markings.

[0042] Furthermore, in the pressure gauge housing with the pressure upper limit indicator, the top of the adjusting bolt 3 is provided with an anti-slip protrusion.

[0043] As described above, the top of the adjusting bolt 3 is provided with a protruding ridge to prevent slippage when the adjusting bolt 3 is manually tightened.

[0044] Furthermore, in the pressure gauge housing with the pressure upper limit indicator, the width of the strip-shaped through hole 11 is 1.2-1.5 times the diameter of the indicator needle through hole 21, and the width of the base 4 is greater than the width of the strip-shaped through hole 11.

[0045] As described above, the aforementioned design allows for adjustment slack to facilitate installation, while limiting the swing amplitude of the indicator needle to ensure stability. This achieves flexible adjustment and precise positioning of the indicator needle, overcoming the shortcomings of unreasonable pointer support design in existing technologies.

[0046] Example 1

[0047] like Figures 1 to 6 As shown, a pressure gauge housing with a pressure upper limit indicator is installed on the dial of the pressure gauge. The pressure gauge housing includes a body 1, an indicator needle 2, an adjusting bolt 3, and a base 4. The body 1 has an observation window facing the dial area. The edge of the body 1 has an annular strip-shaped through hole 11 around the observation window. The end of the indicator needle 2 has an indicator needle through hole 21. The adjusting bolt 3 passes through the indicator needle through hole 21 and the annular through hole and is threaded to the base 4.

[0048] In this embodiment, by setting a pressure gauge cover with a pressure upper limit indicator on the pressure gauge dial, the pressure gauge cover can accurately position and fix the indicator needle by tightening the adjusting bolt 3 at the root of the indicator needle, which effectively solves the problem of the indicator needle being easy to loosen and deviate in the prior art, and significantly improves the accuracy and stability of the indicated pressure data.

[0049] In one specific embodiment of this invention, a label placement groove 5 is further provided on the surface of the main body 1. A label protective cover 6 is hinged to the edge of the label placement groove 5 to cover the label placement groove 5. A transparent label window is provided on the label protective cover 6 corresponding to the label area. A magnetic latch is provided on the edge of the label protective cover 6, and a magnetic absorbing piece is embedded in the corresponding position of the label placement groove 5.

[0050] In this embodiment, a transparent label window is provided on the label protective cover 6 corresponding to the label area, providing a dustproof and waterproof label storage space, effectively solving the problem that inspection labels are easy to fall off and wear in the prior art; the edge of the label protective cover 6 is provided with a magnetic latch, and a magnetic absorbing piece is embedded in the corresponding position of the label placement slot 5, realizing the one-handed opening and closing operation of the protective cover, improving the convenience of operation, and overcoming the disadvantage of complex operation in the prior art.

[0051] In one specific embodiment of this example, there are three indicator needles: a safety indicator needle, a warning indicator needle, and a danger indicator needle. Each indicator needle is 120mm long and 10mm in diameter. The end of each indicator needle has a through-hole 21, and the surface of the indicator needle is covered with a fluorescent layer with a thickness of 0.8mm. In this embodiment, multiple indicator needles allow for a clear distinction between safe, warning, and danger pressure values, improving the comprehensiveness of the indicated pressure data.

[0052] Example 2

[0053] like Figure 1 and Figure 4 As shown, a pressure gauge housing with a pressure upper limit indicator is installed on the dial of the pressure gauge. The pressure gauge housing includes a body 1, an indicator needle, an adjusting bolt 3, and a base 4. The body 1 has an observation window facing the dial area. The edge of the body 1 has an annular strip-shaped through hole 11 around the observation window. The end of the indicator needle has an indicator needle through hole 21. The adjusting bolt 3 passes through the indicator needle through hole 21 and the annular through hole and is threadedly connected to the base 4.

[0054] In one specific implementation of this embodiment, such as Figure 3 As shown, the top of the adjusting bolt 3 is provided with anti-slip protrusions.

[0055] like Figure 5As shown, the pressure gauge housing with the pressure upper limit indicator also includes a fixing bolt 7. The side wall of the main body 1 has a fixing through hole, through which the fixing bolt 7 passes and is threaded to abut against the side wall of the pressure gauge. The top of the fixing bolt 7 has an anti-slip ridge. The bottom of the fixing bolt 7 has a rubber buffer layer.

[0056] In this embodiment, the top of the adjusting bolt 3 is provided with an anti-slip protrusion. The top of the fixing bolt 7 is also provided with an anti-slip protrusion, which effectively prevents the bolt from slipping when manually tightening, thus improving the stability and reliability of the operation.

[0057] In one specific embodiment of this example, the width of the strip-shaped through hole 11 is 1.2-1.5 times the diameter of the indicator needle through hole 21, and the width of the base 4 is greater than the width of the strip-shaped through hole 11.

[0058] In this embodiment, the edge of the body 1 is provided with an annular strip-shaped through hole 11 around the observation window. The indicator needle can be quickly and accurately installed to a predetermined position along the strip-shaped through hole 11, realizing flexible adjustment and precise positioning of the indicator needle, and overcoming the shortcomings of unreasonable pointer support position design in the prior art.

[0059] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A pressure gauge housing with a pressure upper limit indication mark, covering the dial of a pressure gauge, characterized in that, The pressure gauge housing includes a body, an indicator needle, an adjusting bolt, and a base. The body has an observation window facing the dial area, and the edge of the body has an annular strip-shaped through hole around the observation window. The end of the indicator needle has an indicator needle through hole, and the adjusting bolt passes through the indicator needle through hole and the annular through hole and is threaded to the base.

2. The pressure gauge housing with a pressure upper limit indicator according to claim 1, characterized in that, The surface of the main body is also provided with a label placement slot, and the edge of the label placement slot is hinged with a label protective cover that covers the label placement slot. A transparent label window is provided on the label protective cover corresponding to the label area.

3. The pressure gauge housing with a pressure upper limit indicator according to claim 2, characterized in that, The label protective cover is provided with a magnetic latch at the end away from the hinge, and a magnetic piece is embedded in the label placement slot corresponding to the position of the magnetic latch.

4. The pressure gauge housing with a pressure upper limit indicator according to claim 1, characterized in that, It also includes a fixing bolt, and the side wall of the body is provided with a fixing through hole. The fixing bolt is threadedly connected to the fixing through hole, and the fixing bolt passes through the fixing through hole and abuts against the side wall of the pressure gauge.

5. The pressure gauge housing with a pressure upper limit indicator according to claim 4, characterized in that, The top of the fixing bolt is provided with anti-slip protrusions.

6. The pressure gauge housing with a pressure upper limit indicator according to claim 4, characterized in that, The bottom of the fixing bolt is provided with a rubber buffer layer.

7. The pressure gauge housing with a pressure upper limit indicator according to claim 1, characterized in that, The number of indicator needles is three: a safety value indicator needle, a warning value indicator needle, and a danger value indicator needle.

8. The pressure gauge housing with a pressure upper limit indication as described in claim 1, characterized in that, The surface of the indicator needle is provided with a fluorescent layer.

9. The pressure gauge housing with a pressure upper limit indicator according to claim 1, characterized in that, The top of the adjusting bolt is provided with anti-slip protrusions.

10. The pressure gauge housing with a pressure upper limit indication according to claim 1, characterized in that, The width of the strip-shaped through hole is 1.2-1.5 times the diameter of the indicator needle through hole, and the width of the base is greater than the width of the strip-shaped through hole.

Images