A sealing structure of an automation instrument

Abstract

The application belongs to the technical field of automatic instrument, and particularly relates to a sealing structure of an automatic instrument, which comprises a main body, a base fixedly arranged at a first end of the main body, an instrument shell fixedly arranged at a second end of the main body, and a sealing mechanism fixedly arranged on an inner wall of the instrument shell. The sealing mechanism comprises an instrument glass, a sealing rubber layer fixedly arranged around a front end face of the instrument glass away from the main body, a first sealing ring fixedly arranged around a front end face of the sealing rubber layer away from the main body, and a second sealing ring fixedly arranged around a rear end face of the instrument glass close to the main body. A space for accommodating the automatic instrument is formed in the main body, and a display part of the automatic instrument faces the instrument glass. The multiple sealing structure composed of the sealing rubber layer, the first sealing ring and the second sealing ring effectively solves the problems of poor waterproof performance and poor internal environment stability of the instrument, and significantly improves the sealing reliability, long-term operation stability and service life of the automatic instrument in a harsh industrial environment.

Description

Technical Field

[0001] This application relates to the field of automated instrumentation technology, and more particularly to a sealing structure for automated instruments. Background Technology

[0002] Automation instruments are key equipment used in industrial production to monitor, control, and measure various parameters, and are widely used in industries such as chemical, petroleum, and power. To ensure the stable operation of automation instruments in complex industrial environments, their sealing structure must effectively prevent the intrusion of corrosive gases, dust, and liquids from the outside, avoiding corrosion, short circuits, or damage to internal components.

[0003] In the existing technology, the sealing structure of automated instruments is mostly sealed by a single sealing ring or threaded connection. Some sealing structures use a shell and sealing elements to protect the instrument and allow internal readings to be observed through tempered glass.

[0004] However, existing technologies lack reliable waterproofing due to their simple sealing structure design and lack of multiple protective measures, thus failing to maintain a stable internal environment. Utility Model Content

[0005] This application provides a sealing structure for an automated instrument. Through a sealing mechanism comprised of an instrument glass, a sealing layer, a first sealing ring, and a second sealing ring, the various sealing components work together to form multiple sealing barriers. The stability of the sealing mechanism is enhanced by the abutting fit between the limiting shoulder and the second sealing ring. This improved sealing structure brings beneficial effects such as better sealing performance, excellent water resistance, and higher environmental stability.

[0006] To achieve the above objectives, this application provides a sealing structure for an automated instrument, comprising: a main body, a base, an instrument housing, and a sealing mechanism;

[0007] A base is fixedly installed at the first end of the main body; an instrument housing is fixedly installed at the second end of the main body; a sealing mechanism is fixedly installed on the inner wall of the instrument housing.

[0008] The sealing mechanism includes: an instrument glass; a sealing layer fixedly disposed around the front end face of the instrument glass away from the main body; a first sealing ring fixedly disposed around the front end face of the sealing layer away from the main body; and a second sealing ring fixedly disposed around the rear end face of the instrument glass close to the main body.

[0009] The main body forms a space to house the automated instruments, with the display section of the automated instruments facing the instrument glass.

[0010] Preferably, the inner wall of the instrument housing is provided with a limiting shoulder, which abuts against the end of the second sealing ring near the main body.

[0011] Preferably, a connecting seat is fixedly provided at the center of one side of the main body; a first connecting hole is provided at the center of the side of the connecting seat away from the main body, and a first mounting hole is provided at the edge of the connecting seat.

[0012] Preferably, a mounting base is fixedly provided at the center of the lower end face of the main body; the mounting base is close to the first end of the main body; and a second connecting hole is provided at the center of the side of the mounting base away from the main body.

[0013] Preferably, a boss is fixedly provided at the center of the side of the mounting base near the instrument housing.

[0014] Preferably, the main body is provided with a fixing seat; the fixing seat includes: a first fixing seat and a second fixing seat;

[0015] The first fixing seat is fixedly installed at the center of the upper end face of the main body; the first fixing seat is close to the first end of the main body; a second mounting hole is opened at the center of the first fixing seat;

[0016] The second fixing seat is disposed opposite to the connecting seat at the center position on the other side of the main body, and the second fixing seat is close to the first end of the main body; a third mounting hole is provided at the center position of the second fixing seat.

[0017] Preferably, a top cover is snapped onto the center of the upper surface of the main body.

[0018] Preferably, the instrument housing is connected to the second end of the main body via a quick-release latch.

[0019] This application provides a sealing structure for automated instruments. The multi-layered sealing arrangement of the sealing mechanism enhances the sealing protection of the automated instruments, solving the problems of poor waterproofing and insufficient environmental stability in existing technologies. In the sealing mechanism, the instrument glass provides an observation window. A sealant layer fills the space between the instrument glass and the first sealing ring to form a primary seal. The first and second sealing rings are respectively located around the front end of the sealant layer away from the main body and around the rear end of the instrument glass near the main body, forming multiple sealing barriers. A limiting shoulder on the inner wall of the instrument housing abuts against the end of the second sealing ring near the main body, enhancing the stability of the sealing mechanism. This improved sealing structure brings beneficial effects such as better sealing performance, excellent waterproofing, and higher environmental stability, while also enhancing impact and vibration resistance. Attached Figure Description

[0020] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1This is a three-dimensional structural diagram of the sealing structure of an automated instrument provided in an embodiment of the present invention;

[0022] Figure 2 A three-dimensional structural schematic diagram of the sealing structure of the automated instrument provided in an embodiment of the present invention;

[0023] Figure 3 A schematic diagram of the rear end face of the sealing structure of the automated instrument provided in an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the internal structure of the sealing structure of the automated instrument provided in an embodiment of the present invention.

[0025] Illustration:

[0026] The components are as follows: 1. Main body; 2. Base; 3. Instrument housing; 4. Sealing mechanism; 41. Instrument glass; 42. Sealing layer; 43. First sealing ring; 44. Second sealing ring; 5. Connecting seat; 51. First connecting hole; 52. First mounting hole; 6. Mounting seat; 61. Second connecting hole; 7. Boss; 8. Fixing seat; 81. First fixing seat; 811. Second mounting hole; 82. Second fixing seat; 821. Third mounting hole; 9. Top cover. Detailed Implementation

[0027] The embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described below do not represent all embodiments consistent with this application. They are merely examples of systems and methods consistent with some aspects of this application.

[0028] It should be noted that the brief descriptions of terms in this application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise stated, these terms should be understood in their ordinary and common meaning.

[0029] The terms "first," "second," "third," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar or related objects or entities, and do not necessarily imply a specific order or sequence, unless otherwise specified. It should be understood that such terms are interchangeable where appropriate.

[0030] The terms “comprising” and “having”, and any variations thereof, are intended to cover but not exclude inclusion, for example, a product or device that includes a range of components is not necessarily limited to all of the components that are clearly listed, but may include other components that are not clearly listed or that are inherent to such product or device.

[0031] In the field of automated instrumentation technology, existing instrument sealing structures often suffer from insufficient waterproofing and poor internal environmental stability. These sealing structures typically employ single-layer sealing rings or simple gasket designs, which are ineffective at preventing moisture intrusion in harsh environments. This leads to corrosion of internal instrument components, decreased measurement accuracy, and shortened service life, failing to meet the stringent environmental stability requirements of high-reliability industrial applications.

[0032] To address the aforementioned problems, this application provides a sealing structure for automated instruments.

[0033] The following description will be provided in conjunction with the accompanying drawings and specific embodiments.

[0034] In some embodiments, see Figures 1-4 The main body 1 is the core load-bearing component of the entire automated instrument sealing structure. It is used to integrate and support functional components such as the base 2, instrument housing 3, and sealing mechanism 4. The accommodating space formed inside the main body 1 is used to place the automated instrument and provide a closed and stable working environment for the automated instrument.

[0035] The base 2 is fixedly installed at the first end of the main body 1. Its main function is to provide stable support for the entire sealing structure, so that the sealing structure can be placed stably on the mounting platform or equipment frame. It can also serve as a transition component for connecting with the external fixed foundation.

[0036] The instrument housing 3 is fixedly installed at the second end of the main body 1, forming a sealed space together with the main body 1 to house and protect the internal components of the automation instrument. The instrument housing 3 isolates the automation instrument from moisture, dust, and corrosive substances in the external environment, thus providing a stable installation and working environment for the automation instrument.

[0037] The sealing mechanism 4 is fixedly installed on the inner edge of the instrument housing 3 to prevent moisture, dust, and corrosive substances from the external environment from entering the enclosure space formed by the main body 1 and the instrument housing 3, thereby protecting the automated instrument located therein. At the same time, the sealing mechanism 4 ensures that the readings of the automated instrument can be clearly observed through the instrument glass 41. The sealing mechanism 4 consists of the instrument glass 41, the sealing layer 42, the first sealing ring 43, and the second sealing ring 44. The instrument glass 41, the sealing layer 42, the first sealing ring 43, and the second sealing ring 44 work together to achieve a multi-layered sealing protection effect.

[0038] The instrument glass 41 is a basic component of the sealing mechanism 4. The function of the instrument glass 41 is to allow the operator to clearly observe the readings, indicator lights or screen information displayed by the display section of the automation instrument housed inside the main body 1, while physically isolating the relevant components of the automation instrument from the external environment.

[0039] The sealant layer 42 is fixedly disposed around the front end face of the instrument glass 41 away from the main body 1, and is used to fill any small gaps that may exist between the instrument glass 41 and other components, thereby preventing external substances from entering the accommodating space formed by the main body 1 and the instrument housing 3, and enhancing the tightness of the seal.

[0040] The first sealing ring 43 is fixedly disposed around the front end face of the sealing layer 42 away from the main body 1. It is the front sealing component of the sealing mechanism 4, used to enhance the sealing effect and protect the sealing layer 42. The size of the first sealing ring 43 is adapted to the inner wall of the instrument housing 3 and the sealing layer 42, and after assembly, it fits tightly against the inner wall of the instrument housing 3.

[0041] The second sealing ring 44 is fixedly disposed around the rear end face of the instrument glass 41 near the main body 1. It is the rear sealing component of the sealing mechanism 4 and, together with the first sealing ring 43 and the sealing adhesive layer 42, forms a multi-layer seal. The size of the second sealing ring 44 matches the mating parts of the rear end face of the instrument glass 41 and the inner wall of the instrument housing 3, and they fit tightly together after assembly.

[0042] This embodiment effectively solves the problems of insufficient waterproof performance and poor internal environment stability in the prior art through a multi-seal structure composed of a first sealing ring 43, a sealing adhesive layer 42, and a second sealing ring 44. The first sealing ring 43 is located around the front end face of the sealing adhesive layer 42 away from the main body 1, and uses the properties of elastic material to fit tightly with the inner wall of the instrument housing 3, forming a main sealing barrier. The second sealing ring 44 is located around the rear end face of the instrument glass 41 near the main body 1, forming an auxiliary sealing barrier. The main sealing barrier and the auxiliary sealing barrier together block the intrusion of most external impurities. The sealing adhesive layer 42 fills around the front end face of the instrument glass 41 away from the main body 1, and uses the deformation ability of flexible material to adapt to assembly errors, effectively eliminating micro gaps between components. This multi-seal design can effectively resist the erosion of various harmful substances such as water vapor, dust, and corrosive gases, ensuring the cleanliness and dryness of the space containing the main body 1, and preventing internal components of the automated instrument from malfunctioning due to the intrusion of impurities, such as corrosion and short circuits. This structure achieves excellent waterproof performance while reliably maintaining the long-term stability of the internal environment of the instrument, meeting the stringent protection requirements of modern industry for the high-precision and high-stability operation of automated instruments in extreme environments. The multiple sealing structure also serves to fix and buffer the instrument glass, preventing it from shifting and breaking, thus significantly improving the instrument's service life and overall reliability.

[0043] In some embodiments, see Figure 4A limiting shoulder 45 is provided on the inner wall of the instrument housing 3 to position and support the protruding structure of the second sealing ring 44. Its main function is to restrict the assembly position of the sealing mechanism 4 within the instrument housing 3 by abutting against the end of the second sealing ring 44 near the main body 1. The limiting shoulder 45 is an integrally formed structure with the instrument housing 3, manufactured by casting or machining. Its cross-section is annular and stepped, continuously distributed along the circumference of the inner wall of the instrument housing 3, ensuring uniform and reliable support and positioning of the second sealing ring 44. At the same time, under the support of the limiting shoulder 45, the second sealing ring 44 will not be displaced due to external vibration, ensuring the stability of the sealing structure of the automated instrument.

[0044] In some embodiments, see Figure 1 The connecting seat 5 is fixedly installed at the center of one side of the main body 1. The connecting seat 5 is used to connect with other components to realize the material transmission or signal transmission function between the main body 1 and external equipment.

[0045] The first connecting hole 51 is located at the center of the side of the connector 5 away from the main body 1. The first connecting hole 51 is the core structure for the connector 5 to achieve functional docking and is used to connect with other corresponding components.

[0046] The first mounting hole 52 is located at the edge of the connector 5 and is a structure that helps to enhance the stability of the connection between the connector 5 and the external device. When used in conjunction with the first connection hole 51, the first mounting hole 52 further enhances the connection function of the connector 5.

[0047] It should be noted that, in this embodiment, by setting a connecting seat 5 at the center of one side of the main body 1 and opening a first connecting hole 51 and a first mounting hole 52 on the connecting seat 5, various connection operations can be performed between the components, which effectively solves the problems of inconsistent connection interfaces between the sealing structure and external equipment and poor connection stability. It has significantly improved in terms of connection convenience, structural stability and functional adaptability.

[0048] In some embodiments, see Figures 1-4 The mounting base 6 is fixedly set at the center of the lower end face of the main body 1 and close to the first end of the main body 1. Its function is to provide a basic structure for the installation of the entire sealing structure, and to serve as a transition component for the connection between the sealing structure and the installation carrier, supporting and assisting in the installation and fixing of the entire sealing structure.

[0049] The second connecting hole 61 is located at the center of the side of the mounting base 6 away from the main body 1. It functions similarly to the connecting hole on the connecting base and is mainly used to connect with other corresponding components, so that various connection operations can be performed between the components.

[0050] It is understood that this embodiment effectively solves the problem of lack of a dedicated installation base and inconvenient installation operation of the sealing structure by setting an installation base 6 at the center of the lower end face of the main body 1 and near the first end of the main body 1, and opening a second connection hole 61 on the installation base 6, thus providing a reliable installation base structure for the entire sealing structure, and achieving stable connection with other corresponding components through the second connection hole 61.

[0051] In some embodiments, see Figure 1 and Figure 4 The boss 7 is fixedly positioned at the center of the side of the mounting base 6 near the instrument housing 3. It serves as a positioning auxiliary structure during installation, primarily used to cooperate with the corresponding positioning structure on the external mounting carrier during the installation of the sealing structure. This enables rapid alignment and position calibration, ensuring that the mounting base 6 and the entire sealing structure are accurately fixed in the preset installation position. Its center position is consistent with the center of the mounting base 6, guaranteeing positioning accuracy.

[0052] This embodiment effectively solves the problems of inaccurate positioning and difficulty in aligning holes during the installation of the sealing structure by setting a boss 7 at the center position of the mounting base 6 near the instrument housing 3.

[0053] In some embodiments, see Figure 2 and Figure 4 The main body 1 is provided with a fixing seat 8, which includes a first fixing seat 81 and a second fixing seat 82, for connecting other components. It can serve as a mounting bracket, support structure, or connection point for connecting with external equipment, pipes, or other related components. The first fixing seat 81 is fixedly disposed at the center of the upper surface of the main body 1, near the first end of the main body 1, and has a second mounting hole 811 at its center. The second fixing seat 82 is disposed opposite to the connecting seat 5 at the center of the other side of the main body 1, near the first end of the main body 1; and has a third mounting hole 821 at its center. The second mounting hole 811 and the third mounting hole 821 provide connectivity for the fixing seat 8 and are structures specifically designed for connecting with other components.

[0054] This embodiment effectively solves the problems of insufficient connection interfaces between the sealing structure and external components and the single connection method by setting a first fixing seat 81 and a second fixing seat 82 on the main body 1, and respectively opening a second mounting hole 811 and a third mounting hole 821, providing diversified connection operations and providing necessary connection guarantees for the realization of the functions of automated instruments.

[0055] In some embodiments, see Figure 2 and Figure 3The top cover 9 is snap-fitted and located at the center of the upper end face of the main body 1. It is a component that covers the upper opening of the main body 1. It is detachably connected to the main body 1 by snap-fitting and is used to seal the internal space of the main body 1, protect the internal automated instruments from the intrusion of external dust and impurities, and facilitate the later inspection or maintenance of internal components.

[0056] In some embodiments, see Figures 1-4 The instrument housing 3 is connected to the second end of the main body 1 via a quick-release latch. It consists of a latch base fixed on the main body 1 and a movable lock body fixed on the instrument housing 3. Locking or unlocking can be completed by simple operations such as rotating, pressing or turning the lock body, without the need for tools, and it has both a firm connection and convenient disassembly and assembly.

[0057] This embodiment uses a quick-release latch to connect the instrument housing 3 to the second end of the main body 1, effectively solving the problems of cumbersome disassembly and assembly and low maintenance efficiency of traditional bolt connections. Its core advantage lies in balancing the firmness of the connection and the convenience of operation, making it suitable for the needs of industrial environments.

[0058] Similar parts between the embodiments provided in this application can be referred to mutually. The specific implementation methods provided above are only a few examples under the overall concept of this application and do not constitute a limitation on the scope of protection of this application. For those skilled in the art, any other implementation methods extended from the solution of this application without creative effort shall fall within the scope of protection of this application.

Claims

1. A sealing structure for an automated instrument, characterized in that, include: Main body (1); a base (2) is fixedly provided at the first end of the main body (1); an instrument housing (3) is fixedly provided at the second end of the main body (1); a sealing mechanism (4) is fixedly provided on the inner wall of the instrument housing (3); The sealing mechanism (4) includes: an instrument glass (41); a sealing layer (42) fixedly disposed around the front end face of the instrument glass (41) away from the main body (1); a first sealing ring (43) fixedly disposed around the front end face of the sealing layer (42) away from the main body (1); and a second sealing ring (44) fixedly disposed around the rear end face of the instrument glass (41) close to the main body (1). The main body (1) forms a space for accommodating an automated instrument, the display of which faces the instrument glass (41).

2. The sealing structure of the automated instrument according to claim 1, characterized in that, The inner wall of the instrument housing (3) is provided with a limiting shoulder (45), which abuts against the end of the second sealing ring (44) near the main body (1).

3. The sealing structure of the automated instrument according to claim 1, characterized in that, A connecting seat (5) is fixedly provided at the center of one side of the main body (1); a first connecting hole (51) is provided at the center of the side of the connecting seat (5) away from the main body (1), and a first mounting hole (52) is provided at the edge of the connecting seat (5).

4. The sealing structure of the automated instrument according to claim 1, characterized in that, A mounting base (6) is fixedly provided at the center of the lower end face of the main body (1); the mounting base (6) is close to the first end of the main body (1); a second connecting hole (61) is provided at the center of the side of the mounting base (6) away from the main body (1).

5. The sealing structure of the automated instrument according to claim 4, characterized in that, A boss (7) is fixedly provided at the center of the side of the mounting base (6) near the instrument housing (3).

6. The sealing structure of the automated instrument according to claim 3, characterized in that, The main body (1) is provided with a fixing seat (8); the fixing seat (8) includes: A first fixing seat (81) is fixedly disposed at the center of the upper end face of the main body (1); the first fixing seat (81) is close to the first end of the main body (1); a second mounting hole (811) is provided at the center of the first fixing seat (81); The second fixing seat (82) is disposed opposite to the connecting seat (5) at the center position on the other side of the main body (1), and the second fixing seat (82) is close to the first end of the main body (1); a third mounting hole (821) is provided at the center position of the second fixing seat (82).

7. The sealing structure of the automated instrument according to claim 1, characterized in that, A top cover (9) is snapped onto the center of the upper end face of the main body (1).

8. The sealing structure of the automated instrument according to claim 1, characterized in that, The instrument housing (3) is connected to the second end of the main body (1) by a quick-release latch.

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