Special diaphragm shock-proof pressure gauge for chemical industry

Abstract

The utility model relates to the technical field of pressure gauges, and discloses a special diaphragm shock-proof pressure gauge for the chemical industry, which comprises a chassis, the upper end of the chassis is provided with a fastening mechanism outer part and a fastening mechanism inner part which are fixedly connected, and the upper end of the fastening mechanism inner part is movably connected with a connecting structure. The connecting structure is movably connected with the outer part of the fastening mechanism in a sleeving manner, one end, far away from the outer part of the fastening mechanism and the inner part of the fastening mechanism, of the connecting structure is provided with a fixedly connected pressure gauge main body, and the rear end of the pressure gauge main body is provided with a cleaning mechanism. Through the adjustable installation orientation design, the installation flexibility of the pressure gauge is improved, it is ensured that the pressure gauge can be located in the position where observation is most easy all the time, through the arrangement of the cleaning mechanism, water mist on the dial plate can be removed, the problem that water mist is formed on the dial plate of the pressure gauge in the chemical environment is effectively solved, and the reading accuracy of the pressure gauge is improved.

Description

Technical Field

[0001] This utility model relates to the field of pressure gauge technology, and more specifically to a diaphragm shock-resistant pressure gauge for the chemical industry. Background Technology

[0002] The diaphragm shock-resistant pressure gauge is an instrument specifically designed for stable pressure measurement in harsh industrial environments. Its technological background integrates multiple fields such as materials science, precision mechanical design, and electronic sensing technology, aiming to meet the needs of industries such as chemical, petroleum, pharmaceutical, and food processing for high-precision, high-reliability, and corrosion-resistant pressure measurement.

[0003] Existing diaphragm shock-resistant pressure gauges have limitations in terms of installation orientation, making them difficult to adapt to the complex and ever-changing installation environments in the chemical industry. Furthermore, moisture and corrosive gases in chemical environments can easily form water mist on the pressure gauge dial, affecting reading accuracy and making cleaning difficult. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, this utility model provides a diaphragm shock-resistant pressure gauge for the chemical industry, so as to solve the problems existing in the background art.

[0005] This utility model provides the following technical solution: a diaphragm shock-resistant pressure gauge for the chemical industry, comprising a chassis, an external and an internal fastening mechanism fixedly connected to the upper end of the chassis, a connecting structure movably connected to the upper end of the internal fastening mechanism, the connecting structure being movably sleeved with the external fastening mechanism, a pressure gauge body fixedly connected to the end of the connecting structure away from the external and internal fastening mechanism, a cleaning mechanism being provided at the rear end of the pressure gauge body, and the internal fastening mechanism including a rotating handle, a washer, a ratchet gear, and a rotating shaft, wherein the rotating shaft is fixedly connected to the chassis, the bottom of the rotating shaft near the chassis has a thread, the rotating shaft is threadedly connected to the rotating handle, the upper end of the rotating handle is movably connected to the rotating shaft with a washer and a ratchet gear, the washer being snapped between the rotating shaft and the rotating handle;

[0006] Furthermore, the fastening mechanism includes an outer wall, a fixing plate, a fastening claw, a spring, a slot, an annular track, and a circular slot. The outer wall of the fastening mechanism has four fixedly connected fixing plates near the side wall of the pressure gauge body, with the fixing plates evenly distributed on the side wall. Fastening claws are movably connected to the fixing rods of the fixing plates. A spring is fixedly connected to the upper end of the fastening claw near the outer wall of the fastening mechanism, and the end of the spring away from the fastening claw is fixed to the side wall of the outer wall of the fastening mechanism. An integrally formed support rod is located at the lower end of the fastening claw near the outer wall of the fastening mechanism, facing the outer wall of the fastening mechanism. A circular slot is provided where the outer wall of the fastening mechanism connects with the support rod, and the support rod abuts against the lower part of the ratchet gear through the circular slot. Four circumferentially distributed slots are provided at the upper end of the outer wall of the fastening mechanism, each slot corresponding to a fastening claw. An annular track is provided on the inner wall below the slots, and the nut base plate is placed within the annular track, with the annular track movably sleeved with the nut base plate.

[0007] Furthermore, the pressure gauge body includes a casing, a pressure gauge, and a filling fluid, wherein the pressure gauge is located at the front end inside the casing, and the front end inside the casing is filled with filling fluid.

[0008] Furthermore, the cleaning mechanism includes a motor, a drive rod, and a water mist scraper. The motor is located at the rear end outside the watch case. The output end of the motor is fixedly connected to the drive rod, and the end of the drive rod away from the motor is fixedly connected to the water mist scraper. The drive rod rotates with the fixed rod bearing of the pressure gauge pointer, and the water mist scraper is in contact with the front dial of the watch case.

[0009] Furthermore, according to the claim 1, a diaphragm shock-resistant pressure gauge for the chemical industry is characterized in that: the connecting structure includes a connecting rod, a sealing nut, and a nut base plate, wherein the end of the connecting rod near the pressure gauge body is fixedly connected to the detection end of the pressure gauge body, the end of the connecting rod away from the pressure gauge body is threadedly connected to the sealing nut, and the end of the sealing nut near the outside of the fastening mechanism has an integrally formed nut base plate.

[0010] Furthermore, the chassis includes a shell, mounting screw holes, an isolation diaphragm, an anti-impact component, an inner cavity, a liquid guiding cavity, a conduction channel, and a connecting block. The shell has through mounting screw holes around its circumference. The shell has a downward-opening inner cavity. An isolation diaphragm is located above the inner cavity. The isolation diaphragm is fixedly connected to the connecting block. The isolation diaphragm and the upper part of the inner cavity form a closed liquid guiding cavity. An anti-impact component is located within the liquid guiding cavity. The lower part of the anti-impact component abuts against the isolation diaphragm, and the upper part abuts against the top wall of the liquid guiding cavity. A conduction channel is located above the liquid guiding cavity.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] This invention features a cleaning mechanism that removes water mist from the dial, effectively solving the problem of water mist formation on pressure gauge dials in chemical environments and improving the accuracy of pressure gauge readings.

[0013] This utility model improves the installation flexibility of the pressure gauge by providing an external and internal fastening mechanism and an adjustable installation orientation design, ensuring that the pressure gauge can always be located in the most easily observable position. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the overall structure and a partial cross-section of the present invention.

[0016] Figure 3 This is a cross-sectional schematic diagram of the chassis of this utility model.

[0017] Figure 4 For the present utility model Figure 2 Schematic diagram of the structure at point A in the middle.

[0018] The attached figures are labeled as follows: 1. Pressure gauge body; 101. Gauge case; 102. Pressure instrument; 103. Filling fluid; 2. Cleaning mechanism; 201. Motor; 202. Drive rod; 203. Water mist scraper; 3. Connecting structure; 301. Connecting rod; 302. Sealing nut; 303. Nut base plate; 4. External part of fastening mechanism; 401. Outer wall of fastening mechanism; 402. Fixing plate; 403. Fastening claw; 404. 405. Spring; 406. Circular track; 407. Circular groove; 5. Internal part of fastening mechanism; 501. Rotating handle; 502. Washer; 503. Ratchet; 504. Rotating shaft; 6. Chassis; 601. Outer shell; 602. Mounting screw hole; 603. Isolation diaphragm; 604. Anti-impact component; 605. Inner cavity; 606. Liquid guiding cavity; 607. Conduction channel; 608. Connecting block. Detailed Implementation

[0019] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The chemical industry-specific diaphragm shock-resistant pressure gauge involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Reference Figure 1-4This utility model provides a diaphragm shock-resistant pressure gauge for the chemical industry, including a chassis 6. The upper end of the chassis 6 is equipped with a fixedly connected fastening mechanism exterior 4 and a fastening mechanism interior 5. The upper end of the fastening mechanism interior 5 is movably connected to a connecting structure 3, which is movably sleeved with the fastening mechanism exterior 4. The end of the connecting structure 3 away from the fastening mechanism exterior 4 and the fastening mechanism interior 5 is fixedly connected to a pressure gauge body 1. A cleaning mechanism 2 is provided at the rear end of the pressure gauge body 1.

[0021] The pressure gauge body 1 includes a housing 101, a pressure instrument 102, and a filling fluid 103. The pressure instrument 102 is located at the front end inside the housing 101, and the front end inside the housing 101 is filled with the filling fluid 103. The filling fluid 103 is used to make the pressure instrument 102 shockproof.

[0022] The cleaning mechanism 2 includes a motor 201, an active rod 202, and a water mist scraper 203. The motor 201 is located at the rear end outside the housing 101. The output end of the motor 201 is fixedly connected to the active rod 202. The end of the active rod 202 away from the motor 201 is fixedly connected to the water mist scraper 203. The active rod 202 rotates with the fixed rod bearing of the pointer of the pressure gauge 102. The water mist scraper 203 is in contact with the front end of the dial of the housing 101. The rotation of the water mist scraper 203 can remove water mist on the dial, effectively solving the problem of water mist forming on the dial of the pressure gauge in the chemical environment and improving the reading accuracy of the pressure gauge.

[0023] The connecting structure 3 includes a connecting rod 301, a sealing nut 302, and a nut base plate 303. The end of the connecting rod 301 near the pressure gauge body 1 is fixedly connected to the detection end of the pressure gauge body 1, and the end of the connecting rod 301 away from the pressure gauge body 1 is threadedly connected to the sealing nut 302. The end of the sealing nut 302 near the outside of the fastening mechanism 4 has an integrally formed nut base plate 303.

[0024] The internal fastening mechanism 5 includes a rotating handle 501, a washer 502, a ratchet 503, and a rotating shaft 504. The rotating shaft 504 is fixedly connected to the chassis 6. The bottom of the rotating shaft 504 near the chassis 6 has threads, and the rotating handle 501 is threadedly connected to the rotating shaft 504. The washer 502 and the ratchet 503 are movably connected to the upper end of the rotating handle 501 and the rotating shaft 504. The washer 502 is engaged between the rotating shaft 504 and the rotating handle 501 to increase stability. Turning the rotating handle 501 counterclockwise causes the washer 502 to rotate counterclockwise, thereby causing the ratchet 503 to rotate counterclockwise.

[0025] The outer wall 4 of the fastening mechanism includes an outer wall 401, a fixing plate 402, a fastening claw 403, a spring 404, a slot 405, an annular track 406, and a circular groove 407. Four fixing plates 402 are fixedly connected to the side wall of the outer wall 401 near the pressure gauge body 1. The fixing plates 402 are equidistantly distributed on the side wall. Fastening claws 403 are movably connected to the fixing rods of the fixing plates 402. A spring 404 is fixedly connected to the upper end of the fastening claw 403 near the outer wall 401. The end of the spring 404 away from the fastening claw 403 is fixed to the side wall of the outer wall 401. An integrally formed support is located at the lower end of the fastening claw 403 near the outer wall 401. The rod and the support rod face the outer wall 401 of the fastening mechanism. A circular groove 407 is provided where the outer wall 401 of the fastening mechanism connects with the support rod. The support rod abuts against the low part of the ratchet 503 through the circular groove 407. Four circumferentially distributed slots 405 are provided at the upper end of the outer wall 401 of the fastening mechanism. The slots 405 correspond one-to-one with the fastening claws 403. An annular track 406 is provided on the inner wall below the slots 405. The nut base plate 303 is placed in the annular track 406. The annular track 406 and the nut base plate 303 are movably connected, so that the nut base plate 303 can be rotated to adjust the angle. Through the adjustable installation orientation design, the installation flexibility of the pressure gauge is improved, ensuring that the pressure gauge can always be located in the most easily observable position.

[0026] The chassis 6 includes a housing 601, mounting screw holes 602, an isolation diaphragm 603, an anti-impact component 604, an inner cavity 605, a fluid guiding cavity 606, a conduction channel 607, and a connecting block 608. The housing 601 has through mounting screw holes 602 arranged around its circumference. The outer casing 601 has an inner cavity 605 with an opening facing downwards. An isolation diaphragm 603 is located above the inner cavity 605. The isolation diaphragm 603 is fixedly connected to a connecting block 608 to prevent the isolation diaphragm 603 from moving. The isolation diaphragm 603 and the upper part of the inner cavity 605 form a closed liquid guiding cavity 606. An anti-impact component 604 is provided in the liquid guiding cavity 606. The lower part of the anti-impact component 604 abuts against the isolation diaphragm 603, and the upper part abuts against the top wall of the liquid guiding cavity 606, so that the isolation diaphragm 603 will not undergo drastic deformation and the service life of the isolation diaphragm 603 is increased. A conduction channel 607 is provided above the liquid guiding cavity 606.

[0027] The working principle of this utility model:

[0028] First: Secure the base 6 to the pipe to be tested with bolts. Rotate the pressure gauge body 1 to the required angle. After adjusting the angle, turn the handle 501 counterclockwise to rotate the washer 502 that is engaged with the handle 501 counterclockwise, thereby causing the ratchet 503 to rotate counterclockwise. The counterclockwise rotation of the ratchet 503 causes the support rod of the fastening claw 403 to move from the lower position to the higher position. The support rod pushes the lower end of the fastening claw 403 outward, and the compression spring 404 at the lower end of the fastening claw 403 gathers towards the slot 405, which can fix it to the nut base plate 303 below the slot 405. If the angle needs to be adjusted again, turn the handle 501 clockwise to make the ratchet 503 rotate clockwise, and the support rod of the fastening claw 403 reaches the lower position of the ratchet 503. The spring 404 springs the fastening claw 403 away from the nut base plate 303, and the required angle can be adjusted again.

[0029] Next: Start measuring the pressure of the object to be measured. The measuring unit inside the pressure gauge body 1 is the test unit inside a traditional diaphragm pressure gauge. The conduction of the liquid causes the free end of the elastic element (spring tube) in the pressure instrument 102 to produce a corresponding elastic deformation and displacement. Then, according to the working principle of the pressure instrument 102, the measured pressure value is displayed. This is common knowledge, so it will not be described in detail.

[0030] Finally: If there is water mist on the dial, start motor 201. The output end of motor 201 is fixedly connected to drive rod 202, and drive rod 202 is fixedly connected to water mist scraper 203. This allows water mist scraper 203 to receive the power transmitted by drive rod 202 and rotate, which can remove water mist on the dial. This effectively solves the problem of water mist forming on the pressure gauge dial in the chemical environment and improves the accuracy of pressure gauge readings.

[0031] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0032] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0033] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A shock proof pressure gauge for chemical industry, characterized in that: The utility model provides a pressure gauge, including chassis (6), the upper end of chassis (6) is equipped with fixedly connected fastening mechanism outside (4) and fastening mechanism inside (5), the upper end of fastening mechanism inside (5) is movably connected with connecting structure (3), connecting structure (3) is movably sleeved with fastening mechanism outside (4), the one end of connecting structure (3) away from fastening mechanism outside (4) and fastening mechanism inside (5) has fixedly connected pressure gauge body (1), the rear end of pressure gauge body (1) is provided with cleaning mechanism (2), fastening mechanism inside (5) includes rotating handle (501), gasket (502), ratchet wheel (503), pivot (504), wherein pivot (504) is fixedly connected with chassis (6), the bottom of one end of pivot (504) close to chassis (6) has the screw thread, pivot (504) is connected with rotating handle (501) with screw thread, the upper end of rotating handle (501) is movably connected with gasket (502) and ratchet wheel (503) with pivot (504), gasket (502) is clamped between pivot (504) and rotating handle (501).

2. A shock proof pressure gauge for use in chemical industry as claimed in claim 1, wherein: Connecting structure (3) includes connecting rod (301), sealing nut (302), nut bottom plate (303), wherein the one end close to pressure gauge body (1) of connecting rod (301) is fixedly connected with the detection end of pressure gauge body (1), the one end away from pressure gauge body (1) of connecting rod (301) is screwly connected with sealing nut (302), the one end close to fastening mechanism outside (4) of sealing nut (302) has the nut bottom plate (303) of integrative forming with it.

3. A shock proof pressure gauge for chemical industry as claimed in claim 2 wherein: The fastening mechanism outer part (4) includes a fastening mechanism outer wall (401), a fixed plate (402), a fastening claw (403), a spring (404), a clamping groove (405), an annular track (406), and a circular groove (407), wherein the fastening mechanism outer wall (401) is provided with four fixedly connected fixed plates (402) close to the side wall of the pressure gauge main body (1), the fixed plates (402) are equidistantly distributed on the side wall, a fastening claw (403) is movably connected to the fixed rod of the fixed plate (402), a spring (404) is fixedly connected to the upper end of one side of the fastening claw (403) close to the fastening mechanism outer wall (401), one end of the spring (404) away from the fastening claw (403) is fixed to the side wall of the fastening mechanism outer wall (401), the lower end of one side of the fastening claw (403) close to the fastening mechanism outer wall (401) is integrally formed with a support rod, the support rod faces the fastening mechanism outer wall (401), a circular groove (407) is formed at the joint of the fastening mechanism outer wall (401) and the support rod, the support rod abuts against the low part of the ratchet gear (503) through the circular groove (407), four circumferentially distributed clamping grooves (405) are formed in the upper end of the fastening mechanism outer wall (401), the clamping grooves (405) correspond to the fastening claws (403) one by one, an annular track (406) is formed in the inner wall below the clamping groove (405), the nut bottom plate (303) is placed in the annular track (406), and the annular track (406) movably sleeves the nut bottom plate (303).

4. A shock proof pressure gauge for use in chemical industry as claimed in claim 1, wherein: The pressure gauge main body (1) includes a watch case (101), a pressure instrument (102), and a filling liquid (103), wherein the front end of the inside of the watch case (101) is provided with the pressure instrument (102), and the front end of the inside of the watch case (101) is filled with the filling liquid (103).

5. A diaphragm-type shock-resistant pressure gauge for the chemical industry according to claim 1, characterized in that: The cleaning mechanism (2) includes a motor (201), a driving rod (202), and a water mist scraper (203), wherein the motor (201) is located at the rear end outside the watch case (101), the output end of the motor (201) is fixedly connected with the driving rod (202), one end of the driving rod (202) away from the motor (201) is fixedly connected with the water mist scraper (203), the driving rod (202) rotates with the fixed rod bearing of the pointer of the pressure instrument (102), and the water mist scraper (203) is attached to the front dial plate of the watch case (101).

6. A pressure gauge with diaphragm for use in chemical industry as claimed in claim 1, wherein: The bottom plate (6) comprises a shell (601), a mounting screw hole (602), a separation membrane (603), a anti-collision assembly (604), an inner cavity (605), a liquid guide cavity (606), a conduction channel (607), and a connecting block (608), wherein the shell (601) is provided with a through mounting screw hole (602) in the circumference, the shell (601) is internally provided with an inner cavity (605) with an opening downward, the upper portion of the inner cavity (605) is provided with a separation membrane (603), the separation membrane (603) is fixedly connected with the connecting block (608), the separation membrane (603) and the upper portion of the inner cavity (605) constitute a closed liquid guide cavity (606), the liquid guide cavity (606) is internally provided with an anti-collision assembly (604), the lower portion of the anti-collision assembly (604) abuts against the separation membrane (603), and the upper portion of the anti-collision assembly (604) abuts against the top wall of the liquid guide cavity (606), and the upper portion of the liquid guide cavity (606) is provided with a conduction channel (607).

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