Industrial pressure gauge with good moisture-proof performance

Abstract

The utility model discloses an industrial pressure gauge with good moisture-proof performance relates to industrial pressure gauge relevant technical field, including the body, back shell, screw ring and moisture-proof box, be equipped with positioning hole on the back shell, the body back department in -sliding installation has the positioning column corresponding with positioning hole, and the body is installed with the spring no.

Description

Technical Field

[0001] This utility model relates to the technical field of industrial pressure gauges, specifically an industrial pressure gauge with good moisture-proof performance. Background Technology

[0002] In the industrial production sector, industrial pressure gauges are core instruments for monitoring the pressure of media in pipelines and containers. Their measurement accuracy and stability are directly related to production safety and process control. Whether in the chemical, water conservancy, metallurgical, or energy industries, pressure gauges are required to provide real-time pressure data to avoid accidents such as equipment damage, leakage, or even explosions caused by abnormal pressure. With the increasing complexity of industrial environments, harsh conditions such as humidity, fog, and dust place higher demands on the performance of pressure gauges. Among these, moisture resistance has become a key indicator for ensuring the long-term reliable operation of pressure gauges, driving the upgrading of industrial pressure gauges towards higher protection and environmental resistance.

[0003] Existing industrial pressure gauges mainly consist of components such as a casing, movement, Bourdon tube (or diaphragm), pointer, and dial. For example, an improved structure of a pressure gauge, as disclosed in Chinese Patent Publication No. CN218955981U, includes a pressure gauge body. A threaded block is fixedly connected to the back of the pressure gauge body. A protective shell is threadedly connected to the surface of the threaded block, and a moisture-proof pad is fixedly connected to the inner wall of the protective shell. A threaded cylinder is fixedly connected to the bottom of the pressure gauge body. A threaded rod is threadedly connected inside the threaded cylinder, and a sensing rod is fixedly connected to the bottom of the threaded rod. A first arc-shaped plate is snapped onto the surface of the threaded cylinder, and a second arc-shaped plate is threadedly connected to the surface of the first arc-shaped plate. Soft pads are embedded in the inner walls of the first and second arc-shaped plates. This improved pressure gauge structure, through the arrangement of the threaded cylinder, threaded rod, and sensing rod, allows the user to easily adjust the sensing rod position by turning the threaded rod to the appropriate position according to the pressure depth being detected, thus facilitating the adjustment of the sensing rod's position.

[0004] Existing industrial pressure gauges enhance their moisture resistance by fixing a moisture-proof pad to the inner wall of the protective casing and installing moisture-proof components inside the gauge. However, in industrial production, pressure gauges are often installed in locations with significant vibration, such as pump bodies and pipe interfaces. Under continuous vibration, the spiral connection between the protective casing and the gauge body is prone to loosening, and prolonged use may even lead to the protective casing detaching. Loosening or detachment of the protective casing allows external humid air and moisture to penetrate the gauge body without hindrance, causing corrosion of the movement and pointer jamming, severely affecting the pressure gauge's moisture resistance and measurement accuracy. Furthermore, a detached protective casing may lose its protective function, exposing internal components to the external environment and increasing the risk of impact damage. Therefore, improvements to existing industrial pressure gauges are urgently needed. Summary of the Invention

[0005] Therefore, the purpose of this utility model is to provide an industrial pressure gauge with good moisture resistance to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an industrial pressure gauge with good moisture-proof performance, comprising a gauge body, a back shell, a threaded ring, and a moisture-proof box. The back shell is provided with a positioning hole, and a positioning post corresponding to the positioning hole is slidably installed inside the back of the gauge body. A spring connected to the positioning post is installed inside the gauge body.

[0007] An unlocking block for pushing the positioning pin out of the positioning hole is slidably installed inside the back shell, and a drive pin for pushing the unlocking block is slidably installed on the outer wall of the back shell, and a rotating rod is slidably installed on the drive pin. A positioning block is slidably installed inside the back shell, and a spring connected to the positioning block is installed inside the back shell. A positioning groove corresponding to the positioning block is opened on the outer wall of the drive pin. After the positioning block enters the positioning groove, the drive pin cannot slide.

[0008] A lifting block for pushing the positioning block out of the positioning slot is slidably installed inside the drive column, and a magnetic ring for pushing the lifting block is installed on the outer wall of the rotating rod.

[0009] By adopting the above technical solution, the positioning post and positioning hole cooperate to fix the back shell, the drive post and unlocking block work together to achieve convenient disassembly and assembly, the positioning block locks the drive post to prevent accidental contact, ensures that the back shell is installed firmly, and enhances the moisture-proof performance.

[0010] Furthermore, multiple sets of positioning posts are installed at equal angles on the watch body, and the ends of the positioning posts are fitted with ball bearings that are in contact with the end face of the unlocking block.

[0011] By adopting the above technical solution, the multiple sets of positioning posts are distributed at equal angles to ensure uniform force distribution, and the ball bearings reduce friction when the unlocking block is pushed, ensuring smooth extension and retraction of the positioning posts and reliable fixation of the back shell.

[0012] Furthermore, a connecting ring is slidably installed inside the back shell, and multiple sets of unlocking blocks are connected to the outer wall of the connecting ring. A transmission frame connected to the connecting ring and the drive column is also slidably installed inside the back shell.

[0013] By adopting the above technical solution, the connecting ring synchronously drives multiple sets of unlocking blocks, and the transmission frame transmits the driving force, so as to realize that the positioning pins synchronously disengage from the positioning holes, simplifying the unlocking operation and improving the convenience of disassembly and assembly.

[0014] Furthermore, the transmission frame has a polygonal cross-section and is restricted by the back shell, allowing it to slide only within the back shell. A second spring connected to the transmission frame is installed inside the back shell.

[0015] By adopting the above technical solution, the polygonal design restricts the transmission frame to slide without rotating, and the second spring provides a restoring force, ensuring accurate transmission of driving force, reducing component wear, and extending service life.

[0016] Furthermore, the rotating rod has an "I" shaped cross-section, and when the back cover is connected and fixed to the watch body, the rotating rod is in a vertically downward state.

[0017] By adopting the above technical solutions, the "I"-shaped structure is easy to hold and drive, adapts to the needs of industrial field operation, and improves ease of use.

[0018] Furthermore, the area of ​​the part of the lifting block that is in contact with the bottom surface of the positioning block is less than two-thirds of the area of ​​the top surface of the lifting block, and the thickness of the top surface of the lifting block is greater than the thickness of its bottom surface.

[0019] By adopting the above technical solution, the top of the lifting block is thick enough to prevent it from falling off, while ensuring that it can effectively push the positioning block out of the positioning slot, thus ensuring the accuracy of the unlocking action.

[0020] Furthermore, two sets of magnetic seats are symmetrically installed on the drive column. When the rotating rod is not in use, its top is magnetically attracted to the magnetic seat. When the magnetic ring slides upward, it will be magnetically attracted to the magnetic seat, and during the upward movement of the magnetic ring, it will push the top of the lifting block.

[0021] By adopting the above technical solution, the magnetic base adsorbs the rotating rod and magnetic ring, keeping the components stable when idle, avoiding accidental movement that could affect fixation, and improving the safety and reliability of the equipment.

[0022] In summary, the present invention has the following main advantages:

[0023] This utility model incorporates components such as positioning columns and positioning holes. The positioning columns and positioning holes work together to precisely fix the back cover to the gauge body, and multiple sets of positioning columns distributed at equal angles ensure uniform force distribution. The drive column, unlocking block, and transmission frame are linked to facilitate easy release of the fixation, while the positioning block and positioning groove lock the drive column to prevent accidental loosening. The magnetic ring and lifting block work together to achieve rapid switching between unlocking and locking, and the ball bearings reduce friction and wear. The overall structure ensures a secure installation of the back cover, and the moisture-proof components prevent the intrusion of humid air, ensuring long-term stable operation of the pressure gauge in high-vibration and high-humidity industrial environments, thus extending its service life. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the structure of this utility model after the back shell has been removed;

[0026] Figure 3This is a structural schematic diagram of the present invention from another perspective after the back cover has been removed;

[0027] Figure 4 This is a schematic diagram of the structure of the back shell of this utility model after it has been cut open;

[0028] Figure 5 This utility model Figure 4 A magnified structural diagram of point A in the middle;

[0029] Figure 6 This is a schematic diagram of the drive column of this utility model after being cut open;

[0030] Figure 7 This is a schematic diagram of the planar structure of the drive column and transmission frame of this utility model after being cut open;

[0031] Figure 8 This is a schematic diagram of the drive column and transmission frame after the magnetic ring and magnetic base of this utility model are attracted to each other.

[0032] In the diagram: 1. Watch body; 2. Back cover; 21. Threaded ring; 3. Moisture-proof component; 4. Positioning hole; 5. Positioning post; 6. Spring 1; 7. Ball bearing; 8. Unlocking block; 81. Connecting ring; 82. Transmission frame; 83. Spring 2; 9. Drive post; 10. Rotating rod; 11. Positioning block; 12. Positioning groove; 13. Spring 3; 14. Lifting block; 15. Magnetic ring; 16. Magnetic base. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0034] The embodiments of this utility model will be described below based on its overall structure.

[0035] An industrial pressure gauge with good moisture resistance, such as Figure 1 - Figure 8 As shown, it includes a body 1, a back cover 2, a threaded ring 21, and a moisture-proof component 3;

[0036] The pressure gauge body 1 is the core component, used to measure and display pressure data. The back cover 2 is connected to the pressure gauge body 1 via a threaded ring 21, providing protection. The moisture-proof component 3 enhances the pressure gauge's moisture resistance, preventing humid air from affecting the internal components. The back cover 2 has a positioning hole 4, and a positioning post 5 is slidably installed inside the back of the pressure gauge body 1, corresponding to the positioning hole 4. A spring 6 connected to the positioning post 5 is installed inside the pressure gauge body 1, providing the spring 6 with the ejection force to insert the positioning post 5 into the positioning hole 4 and fix the relative position of the back cover 2 and the pressure gauge body 1.

[0037] In this embodiment, an unlocking block 8 is slidably installed inside the back shell 2. The unlocking block 8 is used to push the positioning pin 5 out of the positioning hole 4 and release the fixation. At the same time, a drive pin 9 is slidably installed on the outer wall of the back shell 2. The drive pin 9 is used to push the unlocking block 8. A rotating rod 10 is slidably installed on the drive pin 9. The rotating rod 10 facilitates the operator to push or rotate the drive pin 9. A positioning block 11 is slidably installed inside the back shell 2. A spring 13 connected to the positioning block 11 is installed inside the back shell 2. A positioning groove 12 corresponding to the positioning block 11 is opened on the outer wall of the drive pin 9. After the positioning block 11 enters the positioning groove 12, the drive pin 9 cannot slide, thus achieving locking. A lifting block 14 is slidably installed inside the drive pin 9. The lifting block 14 is used to push the positioning block 11 out of the positioning groove 12. A magnetic ring 15 is installed on the outer wall of the rotating rod 10. The magnetic ring 15 is used to push the lifting block 14.

[0038] For example, multiple sets of positioning pins 5 are installed at equal angles on the body 1 to ensure that the back cover 2 is subjected to uniform force; a ball bearing 7 is installed at the end of the positioning pin 5, and the ball bearing 7 is in contact with the end face of the unlocking block 8 to reduce friction when the unlocking block 8 pushes the positioning pin 5; a connecting ring 81 is slidably installed inside the back cover 2, and multiple sets of unlocking blocks 8 are connected to the outer wall of the connecting ring 81. The connecting ring 81 is used to synchronously drive multiple sets of unlocking blocks 8; a transmission frame 82 is slidably installed inside the back cover 2. The transmission frame 82 is connected to the connecting ring 81 and the drive pin 9 to transmit driving force.

[0039] For example, the transmission frame 82 has a polygonal cross-section and can only slide within the back shell 2 due to the restriction of the back shell 2, thus avoiding rotational interference. A second spring 83 connected to the transmission frame 82 is installed inside the back shell 2, and the second spring 83 provides the reset power for the transmission frame 82. At the same time, the rotating rod 10 has an "I" shaped cross-section. When the back shell 2 is connected and fixed to the watch body 1, the rotating rod 10 is in a vertically downward state, which is convenient for operation and does not occupy extra space.

[0040] In this embodiment, the area of ​​the bottom surface of the lifting block 14 that is in contact with the positioning block 11 is less than two-thirds of the area of ​​the top surface of the lifting block 14, ensuring that the positioning block 11 can be effectively pushed. The thickness of the top surface of the lifting block 14 is greater than the thickness of its bottom surface, ensuring that the lifting block 14 will not fall off the drive column 9. At the same time, two sets of magnetic seats 16 are symmetrically installed on the drive column 9. When the rotating rod 10 is not in use, its top surface is magnetically attracted to the magnetic seat 16, maintaining stability. After the magnetic ring 15 slides upward, it will be magnetically attracted to the magnetic seat 16, and during the movement, it will push the top surface of the lifting block 14 to achieve linkage.

[0041] Through the coordinated operation of the above components, when installing the back cover 2, it is first initially connected through the threaded ring 21. Pushing the rotating rod 10 causes the lifting block 14 to release the locking of the positioning block 11 on the drive column 9. Pushing and rotating the drive column 9 causes the back cover 2 to tighten. After loosening, the positioning column 5 is inserted into the positioning hole 4 for fixation. After the rotating rod 10 is reset, the positioning block 11 relocks the drive column 9. When disassembling, the operation is reversed. The unlocking block 8 pushes out the positioning column 5 and rotates away from the back cover 2. This structure ensures that the back cover 2 is installed firmly. With the moisture-proof component 3, it effectively improves the moisture-proof performance and is suitable for humid and vibrating industrial environments.

[0042] The working principle of this utility model is as follows: During installation, the back cover 2 is first screwed onto the watch body 1 through the threaded ring 21. At this time, the back cover 2 is not in contact with the outer wall of the watch body 1, leaving a certain adjustment space.

[0043] Next, push the rotating rod 10 upward so that the magnetic ring 15 on its outer wall gradually approaches and eventually magnetically attracts the magnetic seat 16 on the drive column 9; during this process, the pushing lifting block 14 of the magnetic ring 15 slides upward, and the top of the lifting block 14 presses against the positioning block 11, forcing the positioning block 11 to compress the spring 13 and be pulled out from the positioning groove 12, thus releasing the sliding restriction on the drive column 9.

[0044] After the restriction is lifted, push the rotating rod 10 towards the back shell 2. The rotating rod 10 drives the drive column 9 to move synchronously. The drive column 9 pushes the connecting ring 81 through the transmission frame 82. The connecting ring 81 then drives multiple sets of unlocking blocks 8 to slide towards the positioning hole 4, so that the unlocking blocks 8 partially block the opening position of the positioning hole 4. At the same time, the transmission frame 82 compresses the second spring 83, so that it stores elastic potential energy.

[0045] At this time, the drive column 9 is driven to rotate by the rotating rod 10. Since the drive column 9 is fixedly connected to the transmission frame 82, and the transmission frame 82 is restricted by the back shell 2 to slide but not rotate, the driving force of rotation will be transmitted to the back shell 2, so that the back shell 2 is gradually tightened through the threaded ring 21 and gradually approaches the watch body 1.

[0046] As the distance between the back cover 2 and the watch body 1 decreases, the inner wall of the back cover 2 will contact the ball 7 at the end of the positioning post 5; because the unlocking block 8 has blocked the positioning hole 4, the positioning post 5 cannot enter the positioning hole 4, thus avoiding the positioning post 5 from accidentally getting stuck during rotation and causing the back cover 2 to be unable to continue to tighten; while the rolling contact of the ball 7 reduces the friction between the back cover 2 and the positioning post 5, preventing both from excessive wear.

[0047] When the back cover 2 is rotated to the specified position and its outer wall is completely in contact with the outer wall of the watch body 1, the rotating rod 10 is released; the spring 2 83 releases its elastic potential energy, pushing the transmission frame 82, the drive column 9 and the rotating rod 10 to reset, and the unlocking block 8 moves away from the positioning hole 4 along with the connecting ring 81, so that the positioning hole 4 is fully exposed.

[0048] At this time, the positioning pin 5 pops out under the elastic force of the spring 6 and inserts into the corresponding positioning hole 4 to fix the back shell 2 and prevent it from loosening; then, press down the rotating rod 10 to separate the magnetic ring 15 from the magnetic seat 16 above until the top of the rotating rod 10 is magnetically attracted to another set of magnetic seats 16.

[0049] After the magnetic ring 15 is disengaged, the lifting block 14 loses its thrust and slides down under its own weight and the push of the positioning block 11; the positioning block 11 then slides back into the positioning groove 12 under the action of the spring 13, locking the position of the drive column 9, preventing accidental unlocking, and ensuring that the back shell 2 is securely installed.

[0050] When it is necessary to remove the back cover 2, the operation process is reversed and coordinated with the installation process; first, push the rotating rod 10 upward so that the magnetic ring 15 and the magnetic seat 16 above are re-adsorbed, and the lifting block 14 pushes the positioning block 11 away from the positioning groove 12 again, releasing the restriction on the drive column 9.

[0051] Next, push the rotating rod 10 towards the back shell 2. The drive column 9 drives the unlocking block 8 to block the positioning hole 4 again through the transmission frame 82 and the connecting ring 81. At the same time, the unlocking block 8 squeezes the ball 7, causing the positioning column 5 to compress the spring 6 and slide out of the positioning hole 4, thus releasing the fixation of the back shell 2.

[0052] Finally, the drive column 9 is rotated in the opposite direction by the rotating rod 10, and the back cover 2 is gradually rotated away from the watch body 1 under the action of the threaded ring 21, thus completing the disassembly.

[0053] This industrial pressure gauge achieves convenient installation and secure fixation of the back cover 2 through precise mechanical linkage, while ensuring long-term stability of moisture-proof performance through anti-loosening design, making it suitable for humid and vibration-prone industrial environments.

[0054] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. An industrial pressure gauge with good moisture-proof performance, characterized in that, The watch includes a body (1), a back cover (2), a threaded ring (21), and a moisture-proof component (3). The back cover (2) has a positioning hole (4). A positioning post (5) corresponding to the positioning hole (4) is slidably installed inside the back of the watch body (1). A spring (6) connected to the positioning post (5) is installed inside the watch body (1). The back shell (2) is slidably installed with an unlocking block (8) for pushing the positioning pin (5) out of the positioning hole (4), and the outer wall of the back shell (2) is slidably installed with a drive pin (9) for pushing the unlocking block (8), and a rotating rod (10) is slidably installed on the drive pin (9). The back shell (2) is slidably installed with a positioning block (11), and the back shell (2) is installed with a spring three (13) connected to the positioning block (11). The outer wall of the drive pin (9) is provided with a positioning groove (12) corresponding to the positioning block (11). After the positioning block (11) enters the positioning groove (12), the drive pin (9) cannot slide. A lifting block (14) for pushing the positioning block (11) out of the positioning groove (12) is slidably installed inside the drive column (9), and a magnetic ring (15) for pushing the lifting block (14) is installed on the outer wall of the rotating rod (10).

2. The industrial pressure gauge with good moisture-proof performance according to claim 1, characterized in that: The positioning pins (5) are installed at equal angles on the watch body (1), and the end of the positioning pins (5) is fitted with a ball bearing (7) that is in contact with the end face of the unlocking block (8).

3. The industrial pressure gauge with good moisture-proof performance according to claim 1, characterized in that: A connecting ring (81) is slidably installed inside the back shell (2), and multiple sets of unlocking blocks (8) are connected to the outer wall of the connecting ring (81). A transmission frame (82) connected to the connecting ring (81) and the drive column (9) is slidably installed inside the back shell (2).

4. The industrial pressure gauge with good moisture-proof performance according to claim 3, characterized in that: The transmission frame (82) has a polygonal cross-section and is restricted by the back shell (2), so it can only slide inside the back shell (2). A spring (83) connected to the transmission frame (82) is installed inside the back shell (2).

5. An industrial pressure gauge with good moisture-proof performance according to claim 1, characterized in that: The rotating rod (10) has an "I" shaped cross section. When the back shell (2) is connected and fixed to the watch body (1), the rotating rod (10) is in a vertically downward state.

6. An industrial pressure gauge with good moisture-proof performance according to claim 1, characterized in that: The area of ​​the part of the lifting block (14) that is in contact with the bottom surface of the positioning block (11) is less than two-thirds of the area of ​​the top surface of the lifting block (14), and the thickness of the top surface of the lifting block (14) is greater than the thickness of its bottom surface.

7. An industrial pressure gauge with good moisture-proof performance according to claim 1, characterized in that: Two sets of magnetic seats (16) are symmetrically installed on the drive column (9). When the rotating rod (10) is not in use, its top is magnetically attracted to the magnetic seat (16). When the magnetic ring (15) slides upward, it will be magnetically attracted to the magnetic seat (16). During the upward movement of the magnetic ring (15), it will push the top of the lifting block (14).

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