Digital instrument

Abstract

The utility model discloses a digital instrument, which comprises an instrument main body, an installation ring is integrally formed and connected on the instrument main body, a plurality of installation holes for fastening screws to pass through are arranged on the installation ring, two elastic sealing rings are fixedly connected on the installation ring along the circumferential direction of the installation ring, the two sealing rings are coaxial, and the installation holes are communicated with the installation ring. The two sealing rings are used for being tightly connected with the inner side surface of the equipment panel in an abutting mode. According to the utility model, the sealing effect between the digital instrument and the equipment panel can be improved, and the risk that water stains enter the equipment is reduced, thereby reducing the risk that the equipment is affected with damp.

Description

Technical Field

[0001] This utility model relates to the field of digital instruments, and in particular to a digital instrument. Background Technology

[0002] Digital instruments are instruments that display the measured value digitally, making the reading more intuitive and convenient. In industrial measurement, analog quantities such as the measured variable or displacement, current, voltage, and air pressure are converted into digital quantities by an analog-to-digital converter.

[0003] Digital instruments in related technologies typically include an instrument body with an integrally formed mounting ring and multiple mounting holes for fastening screws to pass through. The instrument body is placed inside the device, with the end of the instrument body positioned near its display screen inserted into the mounting hole on the device panel. The mounting ring is then secured to the device panel using fastening screws, thus completing the installation of the digital instrument.

[0004] However, the sealing effect between the instrument body and the equipment panel is relatively poor. Water stains can easily enter the equipment through the gap between the instrument body and the equipment panel, posing a risk of the equipment getting damp. This needs to be improved. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a digital instrument that can improve the sealing effect between the digital instrument and the equipment panel, reduce the risk of water stains entering the equipment, and thus reduce the risk of the equipment getting damp.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a digital instrument, including an instrument body, an integrally formed mounting ring on the instrument body, and the mounting ring having a plurality of mounting holes for fastening screws to pass through, and two elastic sealing rings fixedly connected to the mounting ring along its circumference, the two sealing rings being coaxial, and the two sealing rings being respectively used to tightly abut against the inner surface of the device panel.

[0007] In a preferred embodiment, the present invention can be further configured such that: the two sealing rings each include a sealing skeleton and a rubber sealing layer, the sealing skeleton is made of elastic plastic and is fixedly connected to the mounting ring, and the rubber sealing layer is vulcanized and fixed to the corresponding sealing skeleton.

[0008] In a preferred embodiment, the present invention can be further configured such that the cross-sections of the two sealing skeletons are S-shaped, and the two sealing skeletons are symmetrically arranged.

[0009] In a preferred embodiment, the present invention can be further configured such that the mounting hole is located at the outer edge of the mounting ring, and the two sealing rings are respectively located at the inner edge of the mounting ring.

[0010] In a preferred embodiment, the present invention can be further configured such that an adhesive layer is provided on the side of the rubber sealing layer away from the mounting ring, so that the rubber sealing layer can be bonded and fixed to the inner surface of the device panel.

[0011] In a preferred embodiment, the present invention can be further configured such that the inner wall of the mounting hole is provided with an internal thread that mates with a fastening screw.

[0012] In summary, this utility model has the following beneficial effects:

[0013] By setting a sealing ring on the mounting ring that can tightly abut against the inner wall of the instrument panel, the sealing effect between the instrument body and the instrument panel is improved, reducing the risk of water stains entering the equipment and thus reducing the risk of the equipment getting damp. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of an embodiment;

[0015] Figure 2 This is a cross-sectional view of an embodiment;

[0016] Figure 3 yes Figure 2 An enlarged schematic diagram of region A in the middle.

[0017] Reference numerals in the attached drawings: 1. Instrument body; 2. Mounting ring; 3. Mounting hole; 4. Sealing ring; 41. Sealing skeleton; 42. Rubber sealing layer; 43. Adhesive layer. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings.

[0019] Reference Figure 1 , Figure 2 A digital instrument includes an instrument body 1, on which an integrally formed mounting ring 2 is attached. The mounting ring 2 has multiple mounting holes 3 for fastening screws to pass through. Two elastic sealing rings 4 are fixedly connected to the mounting ring 2 along its circumference. The two sealing rings 4 are coaxial and are respectively used to tightly abut against the inner surface of the device panel to improve the sealing effect between the instrument body 1 and the instrument panel, reduce the risk of water stains entering the device, and thus reduce the risk of the device getting damp.

[0020] Reference Figure 2 , Figure 3, two sealing rings 4 respectively include sealing skeletons 41 and rubber sealing layers 42, the sealing skeletons 41 are made of elastic plastic and are fixedly connected with the mounting ring 2, and the rubber sealing layers 42 are vulcanized and fixed on the corresponding sealing skeletons 41. Meanwhile, the cross sections of the two sealing skeletons 41 are respectively S-shaped, and the two sealing skeletons 41 are symmetrically arranged, that is, the cross section of one of the sealing skeletons 41 is S-shaped, and the cross section of the other sealing skeleton 41 is anti-S-shaped.

[0021] When the mounting ring 2 is connected with the instrument panel through the fastening screw, the sealing skeletons 41 can be elastically deformed to ensure the abutting effect between the sealing ring 4 and the instrument panel, thereby ensuring the sealing effect. Meanwhile, the sealing skeletons 41 with the S-shaped cross section have greater elastic potential energy and can play the role of elastic gaskets, so that the screw threads between the fastening screw and the instrument panel can be more tightly abutted, thereby improving the anti-backout effect of the fastening screw and ensuring the installation stability of the digital instrument.

[0022] With reference to Figure 2 , Figure 3 The mounting hole 3 is located at the outer edge position of the mounting ring 2, and the two sealing rings 4 are respectively located at the inner edge positions of the mounting ring 2, that is, the mounting hole 3 is located at the outer side position of the sealing ring 4, thereby effectively ensuring the sealing effect between the mounting ring 2 and the instrument panel, and thereby ensuring the sealing stability between the instrument main body 1 and the instrument panel.

[0023] With reference to Figure 2 , Figure 3 The rubber sealing layer 42 is provided with a sticking layer 43 on the side away from the mounting ring 2, so that the rubber sealing layer 42 can be fixedly bonded with the inner side surface of the equipment panel, which can not only improve the connection stability of the rubber sealing layer 42 and the instrument panel, but also improve the sealing effect therebetween.

[0024] With reference to Figure 1 , Figure 2 The inner side wall of the mounting hole 3 is provided with an inner thread (not shown in the figure) matched with the fastening screw, which can not only improve the connection stability of the fastening screw and the mounting ring 2 and effectively improve the anti-backout ability of the fastening screw, but also can connect the fastening screw with the mounting ring 2 when the digital instrument is disassembled, that is, the fastening screw is separated from the instrument panel, thereby reducing the risk of losing the fastening screw.

[0025] The specific embodiments are only an explanation of the present application, and are not a limitation of the present application, and those skilled in the art can make modifications to the embodiments without creative contribution after reading the present specification, as long as the modifications are within the scope of the claims of the present application.

Claims

1. A digital instrument comprising an instrument body (1), a mounting ring (2) integrally formed on the instrument body (1), and a plurality of mounting holes (3) provided on the mounting ring (2) for fastening screws to pass through, characterized in that: Two elastic sealing rings (4) are fixedly connected on the mounting ring (2) along the circumference thereof, the two sealing rings (4) are coaxial, and the two sealing rings (4) are respectively used for abutting against the inner side surface of the equipment panel.

2. A digital instrument as claimed in claim 1, characterized in that: Each of the two sealing rings (4) comprises a sealing framework (41) made of elastic plastic and fixedly connected with the mounting ring (2) and a rubber sealing layer (42) vulcanized on the corresponding sealing framework (41).

3. A digital instrument as claimed in claim 2, characterized in that: The cross sections of the two sealing frameworks (41) are respectively S-shaped, and the two sealing frameworks (41) are symmetrically arranged.

4. A digital instrument as claimed in claim 2, characterized in that: The mounting holes (3) are located at the outer edge of the mounting ring (2), and the two sealing rings (4) are respectively located at the inner edge of the mounting ring (2).

5. A digital instrument as claimed in claim 2, characterized in that: The rubber sealing layer (42) is provided with a sticking layer (43) on the side away from the mounting ring (2), so that the rubber sealing layer (42) can be adhesively fixed with the inner side surface of the equipment panel.

6. A digital instrument as claimed in claim 1, characterized in that: The inner side wall of the mounting hole (3) is provided with an inner thread matched with the fastening screw.

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