Anti-corrosion radar instrument device

Abstract

The utility model relates to the technical field of radar instruments, in particular to an anti-corrosion radar instrument device which comprises a radar liquid level meter, a threaded sleeve is arranged below the radar liquid level meter, a mounting seat is embedded in the bottom end of the threaded sleeve, a wave guide tube is arranged on the mounting seat, a mounting ring is mounted below the threaded sleeve through a screw rod, and a conical sealing sleeve is clamped between the mounting seat and the mounting ring. A ring channel is arranged on the surface of the pressing edge at the upper end of the sealing sleeve and is inserted between the threaded sleeve and the mounting seat, so that the connection leakproofness between the mounting seat and the caulking groove is improved, and the leakproofness of the mounting seat for mounting the waveguide is greatly improved; a plurality of convex rings are arranged on the side wall of the waveguide, and annular grooves in one-to-one correspondence with the convex rings are formed in the inner wall of the lower end of the sealing sleeve. The protrusions are sleeved with the lower end of the sealing sleeve, the multiple annular grooves are matched with the multiple protrusions, so that the sealing sleeve is tightly connected with the waveguide, and the connection tightness of the sealing sleeve and the waveguide is improved. And through the sealing sleeve, water vapor and the like are prevented from entering the waveguide, so that the anti-corrosion capability of the radar instrument is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of radar instruments, in particular to an anti-corrosion radar instrument device. Background Art

[0002] Radar instruments are electronic devices that use electromagnetic waves to detect targets. For example, a radar level gauge, when in use, is fixed in the detection position. Electromagnetic pulses travel along a steel cable or probe at the speed of light. When they encounter the surface of the measured medium, part of the radar level gauge's pulse is reflected, forming an echo that returns along the same path to the pulse transmitter. The distance between the transmitter and the surface of the measured medium is proportional to the pulse's propagation time between them, and the liquid level is calculated.

[0003] The detection probes of radar level gauges are all equipped with waveguides. These waveguides are made of 304 stainless steel and offer excellent strength, high-temperature resistance, and corrosion resistance. However, the most common connection between the waveguide and the radar level gauge is via fasteners, with a flat sealing gasket, such as a rubber ring, placed at the connection. However, the waveguide is typically inserted into the tank body. As can be expected, after prolonged operation, moisture will inevitably penetrate through the tiny gaps between the flat surface of the sealing gasket and the remaining components, entering the tank and corroding the probe and other electronic components. Furthermore, radar level gauges are often fixed to their mounting bases, which are in turn secured to the tank body with screws. Damage to the mounting base requires the laborious process of removing the screws one by one.

[0004] To this end, the utility model provides an anti-corrosion radar instrument device, which improves the airtightness of the installation position of the instrument components and improves the maintenance convenience of the instrument. Utility Model Content

[0005] The purpose of the utility model is to solve the problems existing in the prior art and to propose an anti-corrosion radar instrument device.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A corrosion-resistant radar instrument device includes a water drop-shaped radar level gauge, a fixing seat is provided on the lower side wall of the radar level gauge, a hollow waveguide is provided at the bottom end of the radar level gauge, a probe is embedded in the waveguide, a screw sleeve detachably connected to the fixing seat is provided below the radar level gauge, a mounting seat is embedded at the bottom end of the screw sleeve, the upper end of the waveguide is embedded in the axis of the mounting seat, a mounting ring is provided below the mounting seat, a plurality of screws are inserted into the mounting ring, the screws pass through the mounting ring and are threadedly connected to the screw sleeve, an elastic sealing sleeve is embedded in the side wall of the waveguide, the sealing sleeve is in the shape of an inverted cone, a pressing edge is provided on the side of the conical upper end of the sealing sleeve, the pressing edge is pressed between the mounting seat and the mounting ring, a ring channel is provided at the upper end of the pressure plate, and the screws pass through the sealing sleeve from the ring channel.

[0008] Preferably, a plurality of convex rings are provided on the side wall of the waveguide, and an annular groove corresponding to the convex rings is provided on the inner wall of the lower end of the sealing sleeve.

[0009] Preferably, the bottom end of the screw sleeve is provided with an embedding groove, a plum blossom key is provided in the embedding groove, the mounting seat is embedded in the embedding groove and the side wall is provided with a plum blossom groove that matches the plum blossom groove.

[0010] Preferably, each convex key of the plum blossom key is provided with a threaded hole matched with the screw thread, and the number of screws corresponds to the number of convex keys of the plum blossom key.

[0011] Preferably, a sealing ring is provided at the lower end of the mounting seat, the outer wall of the sealing ring is in contact with the inner wall of the annular channel, and the sum of the height of the sealing ring and the mounting seat is equal to the depth of the embedding groove.

[0012] Preferably, the pressing edge is provided with a plurality of through holes in the annular channel corresponding to the screw rods one by one.

[0013] Preferably, the bottom end of the mounting ring is provided with an open recessed groove corresponding one-to-one to the screw rod.

[0014] Preferably, the fixing seat is a flange, the axis of the flange is provided with an internal threaded barrel, the screw sleeve is installed in the internal threaded barrel and the screw sleeve passes through the internal threaded barrel.

[0015] Preferably, a limiting ring is provided on the side wall of the radar level gauge above the screw sleeve, and a sealing gasket is placed between the upper end surface of the internal threaded barrel and the ground of the limiting ring.

[0016] Compared with the prior art, the present invention provides an anti-corrosion radar instrument device with the following beneficial effects:

[0017] 1. The present invention comprises a threaded sleeve below a radar level gauge, a groove below the threaded sleeve, a mounting seat embedded in the groove, a mounting ring below the mounting seat, a sealing sleeve sandwiched between the mounting seat and the mounting ring, the sealing sleeve being in the shape of an inverted cone, a pressing edge provided on the tapered upper end of the sealing sleeve, the pressing edge being pressed between the mounting seat and the mounting ring, and a ring channel provided on the upper end of the pressing plate; a plurality of protruding rings provided on the side wall of the waveguide, and an annular groove corresponding to each of the protruding rings provided on the inner wall of the lower end of the sealing sleeve. The lower end of the sealing sleeve is sleeved on the protrusion of the waveguide, and the plurality of annular grooves and the plurality of protrusions cooperate to tightly connect the sealing sleeve to the waveguide, thereby improving the tightness of the connection between the sealing sleeve and the waveguide; the ring channel is inserted between the groove and the sealing ring, and the ring channel increases the tightness of the connection between the mounting seat and the groove, thereby greatly improving the tightness of the mounting seat for mounting the waveguide, reducing the probability of water vapor and the like entering the interior of the waveguide, thereby improving the corrosion resistance of the radar instrument.

[0018] 2. A plum blossom key is provided in the embedded groove, and a plum blossom slot is provided on the side wall of the mounting seat to cooperate with the plum blossom slot. Through the cooperation of the plum blossom key and the plum blossom slot, the mounting seat is embedded in the embedded groove and can only move axially, thereby avoiding the problem of loosening of the installation part after long-term operation, which causes the mounting seat to deviate, making the mounting seat more stable.

[0019] 3. A fixing seat is installed on the side wall of the screw sleeve, so that the radar level meter and the fixing seat can be detachably connected. The radar level meter can be disassembled by twisting it, thereby improving the convenience of maintenance and replacement.

[0020] Other advantages, objectives and features of the present invention will be described in the following description to some extent; and will be apparent to those skilled in the art based on an examination of the following; or may be taught from the practice of the present invention to some extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the present utility model.

[0022] Figure 2 It is a cross-sectional schematic diagram of the present utility model.

[0023] Figure 3 For the utility model Figure 2 A partial schematic diagram of point A.

[0024] Figure 4 It is an isometric bottom view of the present invention.

[0025] Figure 5 For the utility model Figure 4 Explosion diagram.

[0026] Figure 6 It is a three-dimensional view and a cross-sectional view of the sealing sleeve of the present invention.

[0027] In the figure: 1. Radar level gauge; 2. Screw sleeve; 3. Fixing seat; 4. Groove; 5. Plum blossom key; 6. Mounting seat; 7. Plum blossom slot; 8. Mounting ring; 9. Screw; 10. Sealing sleeve; 11. Ring channel; 12. Annular groove; 13. Waveguide; 14. Limiting ring. DETAILED DESCRIPTION

[0028] The following is a combination of the appended examples of the present invention Figure 1-6 , the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] Example 1, in order to improve the sealing performance of the installation part of the waveguide 13, this embodiment provides an anti-corrosion radar instrument device, including a water drop type radar level gauge 1, the radar level gauge 1 is a prior art, refer to the attached Figure 1 As shown, the radar level gauge 1 is provided with a display screen and matching buttons at the top, a line connection port at the side, a screw sleeve 2 is provided at the bottom of the radar level gauge 1, and a fixing seat 3 is provided on the side wall of the screw sleeve 2, which is fastened to the detection port of the tank body through the fixing seat 3;

[0030] The bottom end of the screw sleeve 2 is provided with a embedding groove 4, a plum blossom key 5 is provided in the embedding groove 4, a mounting seat 6 is embedded in the embedding groove 4, and the side wall of the mounting seat 6 is provided with a plum blossom groove 7 that cooperates with the plum blossom groove 7. A hollow waveguide 13 is embedded in the axis of the mounting seat 6, and a probe is embedded in the waveguide 13;

[0031] A mounting ring 8 is provided below the mounting seat 6. The mounting ring 8 is provided with a plurality of circular holes. A screw 9 is inserted into each circular hole. The diameter of the circular hole is larger than the diameter of the threaded portion of the screw 9 and smaller than the size of the end of the screw 9. The number of convex keys of the plum blossom key 5 corresponds to the number of screws 9. Each convex key of the plum blossom key 5 is provided with a threaded hole. The screw 9 passes through the mounting ring 8 from the circular hole and is threadedly connected to the threaded hole.

[0032] An elastic sealing sleeve 10 is embedded in the side wall of the waveguide 13. The sealing sleeve 10 is in the shape of an inverted cone. A pressing edge is provided on the side of the conical upper end of the sealing sleeve 10. The pressing edge is pressed between the mounting seat 6 and the mounting ring 8. A ring channel 11 is provided on the upper end of the pressure plate. A plurality of through holes corresponding to the screws 9 are provided on the pressing edge in the ring channel 11, so that the screws 9 can pass through the through holes in the ring channel 11 and penetrate the sealing sleeve 10.

[0033] The side wall of the waveguide 13 is provided with a plurality of convex rings, and the inner wall of the lower end of the sealing sleeve 10 is provided with an annular groove 12 corresponding to the convex rings one by one.

[0034] A sealing ring is provided at the lower end of the mounting seat 6. There is a gap between the sealing ring and the inner wall of the embedding groove 4. The outer wall of the sealing ring fits in with the inner wall of the annular channel 11. The inner wall of the embedding groove 4 fits in with the outer wall of the annular channel 11. The sum of the height of the sealing ring and the mounting seat 6 is equal to the depth of the embedding groove 4.

[0035] After the lower end of the sealing sleeve 10 is sleeved onto the protrusion of the waveguide 13, the sealing sleeve 10 and the waveguide 13 are tightly connected through the cooperation of multiple annular grooves 12 and multiple protrusions, thereby improving the tightness of the connection between the sealing sleeve 10 and the waveguide 13; after the screw 9 is screwed on, the pressure edge at the upper end of the sealing sleeve 10 is squeezed by the mounting seat 6 and the mounting ring 8. The tightness of the screw 9 and the deformation characteristics of the pressure edge reduce the gap between the mounting seat 6 and the mounting ring 8. At the same time, the ring channel 11 is inserted between the embedded groove 4 and the sealing ring, and the ring channel 11 increases the tightness of the connection between the mounting seat 6 and the lower end of the embedded groove 4. The provision of the sealing sleeve 10 greatly improves the tightness of the mounting seat 6 for mounting the waveguide 13, reduces the probability of water vapor and the like entering the interior of the waveguide 13, and thus improves the corrosion resistance of the radar instrument;

[0036] The mounting seat 6 is embedded in the embedding groove 4, and the multiple convex keys of the plum blossom key 5 are respectively inserted into the corresponding side grooves of the plum blossom slot 7. Through the matching arrangement of the plum blossom key 5 and the plum blossom slot 7, the mounting seat 6 is embedded in the embedding groove 4 and can only move axially, thereby avoiding the problem of loosening of the installation part after long-term operation, which causes the mounting seat 6 to deviate, and makes the mounting seat 6 more secure.

[0037] In this embodiment, a stepped hole is provided at the axis of the mounting seat 6, the inner diameter of the upper end of the stepped hole is smaller than the inner diameter of the lower end, the lower end of the stepped hole is provided with an internal thread, and the outer wall of the upper end of the waveguide 13 is provided with an external thread, so that the waveguide 13 and the mounting seat 6 can be detachably connected, which facilitates the installation of the sealing sleeve 10.

[0038] In this embodiment, an open recessed groove corresponding to the circular hole is provided at the bottom end of the mounting ring 8, so that the screw rod 9 can be installed in a hidden manner, making the threaded installation more beautiful.

[0039] In this embodiment, a tightening ring, such as a cable tie, is provided at the connection portion between the lower end of the sealing sleeve 10 and the waveguide 13 to improve the connection stability between the sealing sleeve 10 and the waveguide 13 .

[0040] Example 2. In order to improve the convenience of maintenance and replacement of the radar instrument, in this embodiment, the fixing seat 3 is a flange, the axis of the flange is provided with an internal threaded barrel, and the outer wall of the screw sleeve 2 is provided with an external thread, so that the screw sleeve 2 is threadedly connected to the internal threaded barrel and the screw sleeve 2 passes through the threaded barrel, thereby making the radar level meter 1 and the fixing seat 3 detachable. The radar level meter 1 can be disassembled by twisting it, thereby improving the convenience of maintenance and replacement.

[0041] In this embodiment, a limiting ring 14 is provided on the side wall of the radar level gauge 1 above the screw sleeve 2, which is used to limit the connection between the screw sleeve 2 and the internal threaded barrel. When the limiting ring 14 rests against the upper end face of the internal threaded barrel, the screw sleeve 2 can no longer descend, and the radar level gauge 1 is now installed.

[0042] In this solution, sealing gaskets are placed between the upper end surface of the internal threaded cylinder and the ground of the limiting ring 14, and between the connection parts of the waveguide 13 and the mounting seat 6 to increase the airtightness of the contact parts of the components.

[0043] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0044] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0045] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An anti-corrosion radar instrument device, comprising a water drop-shaped radar level gauge (1), a fixing seat (3) being provided on the lower side wall of the radar level gauge (1), a hollow waveguide (13) being provided at the bottom end of the radar level gauge (1), a probe being embedded in the waveguide (13), and characterized in that: A screw sleeve (2) detachably connected to a fixing seat (3) is provided below the radar level gauge (1), a mounting seat (6) is embedded in the bottom end of the screw sleeve (2), an upper end of the waveguide (13) is embedded in the axis of the mounting seat (6), a mounting ring (8) is provided below the mounting seat (6), a plurality of screws (9) are inserted into the mounting ring (8), the screws (9) pass through the mounting ring (8) and are threadedly connected to the screw sleeve (2), an elastic sealing sleeve (10) is embedded in the side wall of the waveguide (13), the sealing sleeve (10) is in an inverted cone shape, a pressing edge is provided on the side of the tapered upper end of the sealing sleeve (10), the pressing edge is pressed between the mounting seat (6) and the mounting ring (8), a ring channel (11) is provided on the upper end of the pressure plate, and the screws (9) pass through the sealing sleeve (10) from the ring channel (11).

2. The anti-corrosion radar instrument device according to claim 1, characterized in that: A plurality of convex rings are provided on the side wall of the waveguide (13), and an annular groove (12) corresponding to the convex rings is provided on the inner wall of the lower end of the sealing sleeve (10).

3. The anti-corrosion radar instrument device according to claim 1, characterized in that: The bottom end of the screw sleeve (2) is provided with an embedding groove (4), a plum blossom key (5) is provided in the embedding groove (4), the mounting seat (6) is embedded in the embedding groove (4), and the side wall is provided with a plum blossom groove (7) that matches the plum blossom groove (7).

4. The anti-corrosion radar instrument device according to claim 3, characterized in that: Each convex key of the plum blossom key (5) is provided with a threaded hole that matches the thread of the screw rod (9), and the number of the screw rods (9) corresponds to the number of convex keys of the plum blossom key (5).

5. The anti-corrosion radar instrument device according to claim 3, characterized in that: A sealing ring is provided at the lower end of the mounting seat (6), the outer wall of the sealing ring is in contact with the inner wall of the annular channel (11), and the sum of the heights of the sealing ring and the mounting seat (6) is equal to the depth of the embedding groove (4).

6. The anti-corrosion radar instrument device according to claim 1, characterized in that: The pressing edge is provided with a plurality of through holes located in the ring channel (11) and corresponding to the screw rods (9) one by one.

7. The anti-corrosion radar instrument device according to claim 1, characterized in that: The bottom end of the mounting ring (8) is provided with an open sink groove corresponding one-to-one to the screw rod (9).

8. The anti-corrosion radar instrument device according to claim 1, characterized in that: The fixing seat (3) is a flange, and the axis of the flange is provided with an internal threaded barrel. The screw sleeve (2) is installed in the internal threaded barrel and the screw sleeve (2) passes through the internal threaded barrel.

9. The anti-corrosion radar instrument device according to claim 8, characterized in that: The side wall of the radar level gauge (1) located above the screw sleeve (2) is provided with a limiting ring (14), and a sealing gasket is placed between the upper end surface of the internal threaded barrel and the ground of the limiting ring (14).

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