Quick dismounting device for diaphragm capsule of differential pressure liquid level meter

Abstract

The utility model belongs to the technical field of differential pressure liquid level meters, and particularly relates to a quick dismounting device for a diaphragm capsule of a differential pressure liquid level meter, which is mounted on the diaphragm capsule of the differential pressure liquid level meter, the diaphragm capsule is mounted in the side wall of a container, a capillary tube is connected onto the diaphragm capsule, the quick dismounting device comprises a support ring, the support ring is sleeved on the diaphragm capsule, a notch is arranged on the support ring, and the capillary tube is arranged in the notch in a penetrating manner. The supporting ring is in threaded connection with at least three first threaded rods, the first threaded rods are arranged around the diaphragm capsule, the first threaded rods penetrate through the supporting ring, one ends of the first threaded rods abut against the diaphragm capsule, connecting plates are arranged on the two sides of the supporting ring, second threaded rods are in threaded connection with the interiors of the connecting plates, the second threaded rods penetrate through the connecting plates, and one ends of the second threaded rods abut against the container. The diaphragm capsule is clamped through the first threaded rod, then the second threaded rod is rotated to drive the diaphragm capsule to move, and therefore the diaphragm capsule is pulled out, quick disassembly of the diaphragm capsule is achieved, and damage to a differential pressure liquid level meter and potential safety hazards of operators are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of differential pressure level gauges, in particular to a quick disassembly device for a membrane box of a differential pressure level gauge. Background Art

[0002] A differential pressure level gauge is an instrument that measures the height of a liquid by measuring the pressure difference caused by the change in the liquid level in a container. In a differential pressure level gauge, a pressure sensor is usually installed in a pipe to measure the difference in static pressure of the liquid. When the liquid level changes, the height of the liquid affects the static pressure of the liquid, resulting in a change in the pressure difference, which is proportional to the height of the liquid level. The differential pressure level gauge can be applied to open or closed containers to measure the liquid level by measuring the pressure difference between the static pressure of the liquid level and the atmospheric pressure or the pressure difference caused by the change in the liquid level in the container.

[0003] The sensitive element of the differential pressure level gauge is a metal diaphragm box, which penetrates the side wall of the container and is in direct contact with the measured medium. The diaphragm box is connected to the measuring chamber of the transmitter through a capillary tube. The closed system composed of them is filled with silicone oil, which is the pressure transmission medium.

[0004] Every time the staff performs maintenance on the differential pressure level gauge, they will encounter a difficulty, that is, the scarring causes the diaphragm box to stick together with the pressure pipe and it is difficult to pull out. Every time maintenance is performed, a long time is wasted on pulling out the diaphragm box of the level gauge, and usually violent disassembly is performed. Violent disassembly not only causes damage to the differential pressure level gauge, but also may bring safety hazards to the operators. Utility Model Content

[0005] In order to solve the problems in the above-mentioned background technology, the utility model provides a quick disassembly device for the diaphragm box of a differential pressure level gauge, which clamps the diaphragm box by a first threaded rod on a support ring, and then moves the support ring away from the container by rotating the second threaded rod. The support ring drives the diaphragm box to move, thereby pulling out the diaphragm box, thereby realizing quick disassembly of the diaphragm box and reducing damage to the differential pressure level gauge and safety hazards to operators.

[0006] The utility model provides a quick disassembly device of a diaphragm box of a differential pressure level gauge, which is installed on the diaphragm box of the differential pressure level gauge. The diaphragm box is installed in the side wall of a container, a capillary is connected to the diaphragm box and comprises a support ring, the support ring is sleeved on the diaphragm box, a notch is opened on the support ring, the capillary is passed through the notch, at least three first threaded rods are threadedly connected on the support ring, the first threaded rods are arranged around the diaphragm box, the first threaded rods pass through the support ring and one end abuts against the diaphragm box, connecting plates are arranged on both sides of the support ring, second threaded rods are threadedly connected to the connecting plates, the second threaded rods pass through the connecting plates and one end abuts against the container.

[0007] Furthermore, a hexagonal nut is provided at one end of the first threaded rod away from the membrane box, and a hexagonal nut is also provided at one end of the second threaded rod away from the container.

[0008] Furthermore, a rotating rod is slidably inserted into the hexagonal nut, and the rotating rod passes through the hexagonal nut. Blocks for preventing the rotating rod from sliding out of the hexagonal nut are provided at both ends of the rotating rod.

[0009] Furthermore, the blocking block is threadedly connected to the rotating rod.

[0010] Furthermore, a rubber pad is provided at the end of the first threaded rod close to the membrane box, and the rubber pad abuts against the membrane box.

[0011] Furthermore, a clamping groove is provided in the end portion of the first threaded rod close to the rubber pad, and an elastic clamping block is provided on the rubber pad, and the clamping block is clamped in the clamping groove.

[0012] Furthermore, an end of the second threaded rod close to the container is rotatably connected to an abutment block, and the abutment block abuts against the container.

[0013] Furthermore, two baffles are arranged on the outer peripheral wall of the support ring, and the two baffles are located on both sides of the capillary.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) When disassembling the diaphragm box of the differential pressure level gauge, first put the support ring on the diaphragm box, then rotate the first threaded rod to make the first threaded rod press against the diaphragm box, thereby clamping the diaphragm box through multiple first threaded rods, and then rotate the second threaded rod. After the second threaded rod presses against the container, continue to rotate the second threaded rod. At this time, the second threaded rod drives the support ring to move away from the container through the connecting plate, and the support ring drives the diaphragm box to move through the first threaded rod, thereby pulling out the diaphragm box, thereby realizing rapid disassembly of the diaphragm box and reducing damage to the differential pressure level gauge and safety hazards to operators.

[0016] (2) The first threaded rod and the second threaded rod are both provided with a hexagonal nut and a rotating rod. The hexagonal nut can be adapted to most working tools, so that the operator can use the tool to rotate the first threaded rod and the second threaded rod. When the operator forgets to carry the tool, the first threaded rod and the second threaded rod can also be rotated by the rotating rod.

[0017] (3) A rubber pad is provided at one end of the first threaded rod close to the membrane box. On the one hand, the rubber pad can reduce the squeezing force of the first threaded rod on the membrane box and reduce damage to the membrane box. On the other hand, the rubber pad itself is elastic and can be deformed. After the first threaded rod is pressed against the membrane box, the rubber pad is deformed to better fit the outer wall of the membrane box, thereby increasing the contact area between the rubber pad and the membrane box, thereby increasing the friction. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of a quick disassembly device for a differential pressure level gauge diaphragm box;

[0020] Figure 2 is a cross-sectional view of the first threaded rod and the rubber pad;

[0021] Figure 3 is a cross-sectional view of the second threaded rod and the abutment block;

[0022] Explanation of the reference numerals: 1. container; 10. membrane box; 11. capillary; 2. support ring; 20. notch; 21. baffle; 3. first threaded rod; 30. hexagonal nut; 31. rotating rod; 32. blocking block; 33. rubber pad; 34. snap-in groove; 35. snap-in block; 4. connecting plate; 5. second threaded rod; 50. abutment block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the utility model.

[0024] The following is combined with Figure 1 To Attachment Figure 3 And specific embodiments discuss the utility model in detail.

[0025] Reference Figure 1-3 The utility model provides a quick disassembly device of a differential pressure level gauge diaphragm box, which is installed on a diaphragm box 10 of the differential pressure level gauge. The diaphragm box 10 is installed in a container 1. The container 1 shown in the figure is only a part of the container 1, not the entire structure of the container 1. A capillary 11 is connected to the diaphragm box 10, and the diaphragm box 10 is communicated with the measuring chamber of the transmitter through the capillary 11.

[0026] A quick disassembly device for a differential pressure level gauge diaphragm box comprises a circular support ring 2, the support ring 2 is sleeved on the diaphragm box 10, a notch 20 is opened on the support ring 2, a capillary 11 is passed through the notch 20, the notch 20 is used to make room for the capillary 11 so that the capillary 11 passes through the support ring 2, two baffles 21 are fixedly connected to the outer peripheral wall of the support ring 2, the two baffles 21 are located on both sides of the capillary 11, and the baffles 21 are used to protect the capillary 11 to prevent the capillary 11 from being damaged by collision during operation.

[0027] At least three first threaded rods 3 are threadedly connected in the support ring 2. In the present embodiment, four first threaded rods 3 are provided. The four first threaded rods 3 are provided around the membrane box 10. The first threaded rods 3 are provided along the diameter direction of the support ring 2 and penetrate the support ring 2. A hexagonal nut 30 is fixedly connected to the end of the first threaded rod 3 away from the membrane box 10. The hexagonal nut 30 can be adapted to most working tools, so that the operator can use the tool to rotate the first threaded rod 3; a rotating rod 31 is slidably inserted in the hexagonal nut 30. The rotating rod 31 is provided perpendicular to the length direction of the first threaded rod 3 and penetrates the hexagonal nut 30. A blocking block 32 is threadedly connected at both ends of the rotating rod 31. The blocking block 32 can prevent the rotating rod 31 from slipping out of the hexagonal nut 30. When the operator forgets to carry tools, the operator can rotate the first threaded rod 3 by means of the rotating rod 31. When the working space is narrow and it is not convenient to rotate the rotating rod 31, the blocking block 32 can also be unscrewed to take out the rotating rod 31.

[0028] A rubber pad 33 is provided at the end of the first threaded rod 3 close to the diaphragm box 10, and the rubber pad 33 abuts against the diaphragm box 10. On the one hand, the rubber pad 33 can reduce the squeezing force of the first threaded rod 3 on the diaphragm box 10 and reduce the damage to the diaphragm box 10. On the other hand, the rubber pad 33 itself is elastic and can be deformed. After the first threaded rod 3 is pressed against the diaphragm box, the rubber pad 33 is deformed to better fit the outer wall of the diaphragm box 10, thereby increasing the contact area between the rubber pad 33 and the diaphragm box 10, and then increasing the friction force; a T-shaped clamping groove 34 is provided on the inner side of the end of the first threaded rod 3 close to the rubber pad 33, and an elastic T-shaped clamping block 35 is fixedly connected to the rubber pad 33, and the clamping block 35 is clamped in the clamping groove 34, so that the rubber pad 33 can be detachably connected to the first threaded rod 3, which is convenient for replacing the rubber pad 33.

[0029] Two connecting plates 4 are fixedly connected to the outer peripheral wall of the support ring 2, and the two connecting plates 4 are located on both sides of the support ring 2. A second threaded rod 5 is threadedly connected to the connecting plate 4. The second threaded rod 5 is arranged along the axial direction of the support ring 2 and penetrates the connecting plate 4. The end of the second threaded rod 5 away from the container 1 is also provided with a hexagonal nut 30, a rotating rod 31 and a blocking block 32, and the structure is consistent with the first threaded rod 3; an abutment block 50 is rotatably connected to the end of the second threaded rod 5 close to the container 1, and the abutment block 50 abuts on the outer wall of the container 1. If the second threaded rod 5 directly abuts on the outer wall of the container 1, the second threaded rod 5 will continue to rotate after the abutment, which will cause friction with the container 1, thereby causing damage to the container 1. The setting of the abutment block 50 avoids damage to the container 1. After the second threaded rod 5 abuts on the container 1 through the abutment block 50, the abutment block 50 abuts against the container 1 and does not rotate. When the second threaded rod 5 rotates, it rotates relative to the abutment block 50, so the rotation of the second threaded rod 5 will not cause damage to the container 1.

[0030] The utility model is further described above with the help of specific embodiments, but it should be understood that the specific description here should not be construed as limiting the essence and scope of the utility model. Various modifications made to the above embodiments by ordinary technicians in this field after reading this specification are all within the scope of protection of the utility model.

Claims

1. A quick disassembly device for a differential pressure level gauge diaphragm box, installed on a diaphragm box (10) of the differential pressure level gauge, wherein the diaphragm box (10) is installed in a side wall of a container (1), and a capillary tube (11) is connected to the diaphragm box (10), characterized in that: The invention comprises a support ring (2), wherein the support ring (2) is sleeved on the membrane box (10), a notch (20) is provided on the support ring (2), the capillary (11) is inserted into the notch (20), at least three first threaded rods (3) are threadedly connected to the support ring (2), the first threaded rods (3) are arranged around the membrane box (10), the first threaded rods (3) pass through the support ring (2) and one end abuts against the membrane box (10), connecting plates (4) are provided on both sides of the support ring (2), the connecting plates (4) are internally threadedly connected with second threaded rods (5), the second threaded rods (5) pass through the connecting plates (4) and one end abuts against the container (1).

2. The quick disassembly device of the differential pressure level gauge diaphragm box according to claim 1 is characterized in that: A hexagonal nut (30) is provided at one end of the first threaded rod (3) away from the membrane box (10), and a hexagonal nut (30) is also provided at one end of the second threaded rod (5) away from the container (1).

3. The quick disassembly device of the differential pressure level gauge diaphragm box according to claim 2 is characterized in that: A rotating rod (31) is slidably inserted into the hexagonal nut (30), and the rotating rod (31) passes through the hexagonal nut (30). Blocks (32) for preventing the rotating rod (31) from sliding out of the hexagonal nut (30) are provided at both ends of the rotating rod (31).

4. The quick disassembly device of the differential pressure level gauge diaphragm box according to claim 3 is characterized in that: The blocking block (32) is threadedly connected to the rotating rod (31).

5. The quick disassembly device of the differential pressure level gauge diaphragm box according to claim 1 is characterized in that: A rubber pad (33) is provided at the end of the first threaded rod (3) close to the membrane box (10), and the rubber pad (33) abuts against the membrane box (10).

6. The quick disassembly device of the differential pressure level gauge diaphragm box according to claim 5, characterized in that: A clamping groove (34) is provided in the end of the first threaded rod (3) close to the rubber pad (33), and an elastic clamping block (35) is provided on the rubber pad (33), and the clamping block (35) is clamped in the clamping groove (34).

7. The quick disassembly device of the differential pressure level gauge diaphragm box according to claim 1, characterized in that: One end of the second threaded rod (5) close to the container (1) is rotatably connected to an abutment block (50), and the abutment block (50) abuts against the container (1).

8. The quick disassembly device of the differential pressure level gauge diaphragm box according to claim 1, characterized in that: Two baffles (21) are arranged on the outer peripheral wall of the support ring (2), and the two baffles (21) are located on both sides of the capillary (11).

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