Safe guided wave radar liquid level meter

Abstract

The utility model belongs to the field of guided wave radar liquid level meters, and particularly relates to a safety type guided wave radar liquid level meter which comprises a liquid level meter body, a flange plate is fixedly arranged on the surface of the liquid level meter body in a sleeved mode, a positioning frame is fixedly installed on the surface of the liquid level meter body through bolts, and a protection assembly is arranged on the front side of the positioning frame. The protection assembly comprises two fixing shells, the rear sides of the two fixing shells are fixedly connected with the positioning frame, and inner cavities of the fixing shells are fixedly connected with sliding rods. By arranging the protection assembly, under the action of the protection assembly, the connection position of the liquid level meter body and the wire can be protected, the connection position is prevented from being damaged due to corrosion influence of rainwater, sand wind and the like, and therefore the use safety of the liquid level meter body is improved, and the problems that an existing guided wave radar liquid level meter does not have a protection function at the connection position, is used outdoors for a long time and is inconvenient to use are solved. And corrosion damage is easily caused by environmental influence such as rainwater and sand wind, so that the use safety is influenced.

Description

Technical Field

[0001] The utility model relates to the field of guided wave radar liquid level gauges, in particular to a safe guided wave radar liquid level gauge. Background Art

[0002] Guided wave radar level meter is a liquid level measuring instrument in the chemical industry. It is a radar level meter based on the principle of time domain reflection. The electromagnetic pulse of the radar level meter propagates along the steel cable or probe at the speed of light. When encountering the surface of the medium to be measured, part of the pulse of the radar level meter is reflected to form an echo and returns to the pulse transmitter along the same path. The distance between the transmitter and the surface of the medium to be measured is proportional to the propagation time of the pulse between them, and the liquid level height is calculated.

[0003] The existing guided wave radar level gauge has no protective function at its joints. When used outdoors for a long time, it is easily corroded and damaged by environmental influences such as rain and sand, thus affecting its safety in use. Therefore, a safe guided wave radar level gauge is proposed to address the above problem. Utility Model Content

[0004] In order to make up for the deficiencies of the prior art and solve the problem that the existing guided wave radar level gauge has no protective function at the connection, is easily corroded and damaged by environmental influences such as rain, wind and sand when used outdoors for a long time, thereby affecting its safety in use, the utility model proposes a safe guided wave radar level gauge.

[0005] The technical solution adopted by the utility model to solve the technical problem is: a safe guided wave radar level gauge, comprising a level gauge body, a surface fixing sleeve of the level gauge body is provided with a flange, a positioning frame is fixedly installed on the surface of the level gauge body by bolts, and a protective component is provided on the front side of the positioning frame;

[0006] The protection component includes two fixed shells, the rear sides of the two fixed shells are fixedly connected to the positioning frame, the inner cavity of the fixed shell is fixedly connected with a sliding rod, the surface of the sliding rod is slidably connected with two sliding sleeves, the front side of the sliding sleeve is fixedly connected with an arc rod, the side of the arc rod away from the sliding sleeve is fixedly connected with a positioning shell, the number of the positioning shells is two, the front side of one of the positioning shells is fixedly connected with a limiting rod, the surface of the limiting rod is sleeved with a connecting rod, the rear side of the connecting rod is fixedly connected to a limiting block, and the front side of the other positioning shell is fixedly connected to a limiting disk.

[0007] Preferably, retaining blocks are provided on the top and the bottom of the fixed shell, and the rear side of the retaining blocks is fixedly connected to the front side of the positioning frame.

[0008] Preferably, a return spring is fixedly connected between opposite sides of the two sliding sleeves, and the return spring is sleeved on the surface of the sliding rod.

[0009] By providing a reset spring, the sliding sleeve can be reset, so that it is convenient for the user to connect the wire at the front end of the liquid level meter body.

[0010] Preferably, positioning blocks are fixedly connected to both sides of the sliding sleeve, positioning grooves are provided on both sides of the inner cavity of the fixed shell, and the side of the positioning block away from the sliding sleeve is slidably connected to the inner wall of the positioning groove.

[0011] Preferably, a slider is fixedly connected to the rear side of the positioning shell, a slide groove is provided on the front side of the liquid level meter body, and the rear side of the slider is slidably connected to the inner wall of the slide groove.

[0012] By arranging the cooperation between the slider and the slide groove, the stability of the movement of the positioning shell can be improved, and the position displacement of the positioning shell during the movement process can be avoided.

[0013] Preferably, a protective cover is provided on the top of the flange, a slot is provided on the top of the flange, and the bottom of the protective cover is plugged into the inner wall of the slot.

[0014] Preferably, a sealing gasket is provided on the top of the flange, and the sealing gasket is made of rubber.

[0015] The utility model is beneficial in that:

[0016] 1. The utility model is provided with a protective component, which can protect the connection between the liquid level meter body and the wire under the action of the protective component, so as to prevent the connection from being damaged by corrosion such as rain, wind and sand, thereby improving the safety of the use of the liquid level meter body;

[0017] 2. The utility model can position the protective cover by arranging a slot, and the protective cover can be used to protect the bolts on the surface of the flange to prevent rainwater from corroding the bolts and causing difficulty in disassembly, thereby affecting the user's maintenance of the liquid level meter body. 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 This is a schematic diagram of the structure of the safety guided wave radar level meter of the utility model;

[0020] Figure 2 It is a structural split cross-sectional view of the flange and the protective cover of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the liquid level meter body and flange of the utility model;

[0022] Figure 4 It is a schematic diagram of the structure of the positioning frame and the protection assembly of the utility model;

[0023] Figure 5 For the utility model Figure 4 A magnified view of the structure at center A;

[0024] Figure 6 It is a structural sectional view of the positioning shell of the utility model.

[0025] In the figure: 1. Liquid level meter body; 2. Flange; 3. Positioning frame; 4. Protective assembly; 401. Fixed shell; 402. Slide rod; 403. Slide sleeve; 404. Arc rod; 405. Positioning shell; 406. Limit rod; 407. Connecting rod; 408. Limit block; 409. Limit plate; 410. Retaining block; 411. Reset spring; 412. Positioning block; 413. Positioning slot; 414. Slider; 5. Slide slot; 6. Protective cover; 7. Slot; 8. Sealing pad. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of 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 are within the scope of protection of the utility model.

[0027] The following is combined with Figure 1-6 To further explain this application in detail,

[0028] The present application embodiment discloses a safe guided wave radar level meter. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 A safety guided wave radar level gauge comprises a level gauge body 1, a flange 2 is fixedly mounted on the surface of the level gauge body 1, a positioning frame 3 is fixedly mounted on the surface of the level gauge body 1 by bolts, and a protective component 4 is arranged on the front side of the positioning frame 3;

[0029] The protection component 4 includes two fixed shells 401, the rear sides of the two fixed shells 401 are fixedly connected to the positioning frame 3, the inner cavity of the fixed shell 401 is fixedly connected with a sliding rod 402, the surface of the sliding rod 402 is slidably connected with two sliding sleeves 403, the front side of the sliding sleeve 403 is fixedly connected with an arc rod 404, and the side of the arc rod 404 away from the sliding sleeve 403 is fixedly connected with a positioning shell 405, the number of the positioning shells 405 is two, the front side of one of the positioning shells 405 is fixedly connected with a limiting rod 406, the surface of the limiting rod 406 is sleeved with a connecting rod 407, the rear side of the connecting rod 407 is fixedly connected with a limiting block 408, and the front side of the other positioning shell 405 is fixedly connected with a limiting disk 409; by setting the protection component 4, the liquid level meter body 1 and the wire connection can be protected under the action of the protection component 4 to prevent the connection from being damaged by corrosion such as rain, wind and sand, thereby improving the safety of the use of the liquid level meter body 1.

[0030] Reference Figure 4 The top and bottom of the fixed shell 401 are both provided with retaining blocks 410, and the rear side of the retaining block 410 is fixedly connected to the front side of the positioning frame 3; by providing the retaining block 410, the fixed shell 401 can be limited to prevent the fixed shell 401 from falling off during use.

[0031] Reference Figure 5 A reset spring 411 is fixedly connected between the two opposite sides of the two sliding sleeves 403, and the reset spring 411 is sleeved on the surface of the sliding rod 402; by setting the reset spring 411, the sliding sleeve 403 can be reset, so that it is convenient for the user to connect the wire at the front end of the liquid level meter body 1.

[0032] Reference Figure 5 , positioning blocks 412 are fixedly connected to both sides of the sliding sleeve 403, and positioning grooves 413 are opened on both sides of the inner cavity of the fixed shell 401, and the side of the positioning block 412 away from the sliding sleeve 403 is slidably connected to the inner wall of the positioning groove 413; by setting the positioning block 412 and the positioning groove 413 in coordination, the sliding sleeve 403 can be limited to avoid the position displacement of the sliding sleeve 403 when the sliding sleeve 403 moves vertically.

[0033] Reference Figure 3 and Figure 6 A slider 414 is fixedly connected to the rear side of the positioning shell 405, a slide groove 5 is provided on the front side of the liquid level meter body 1, and the rear side of the slider 414 is slidably connected to the inner wall of the slide groove 5; by arranging the slider 414 and the slide groove 5 in coordination, the stability of the movement of the positioning shell 405 can be improved, and the position displacement of the positioning shell 405 during the movement can be avoided.

[0034] Reference Figure 1 , Figure 2 and Figure 3A protective cover 6 is provided on the top of the flange 2, and a slot 7 is opened on the top of the flange 2. The bottom of the protective cover 6 is plugged into the inner wall of the slot 7; by setting the slot 7, the protective cover 6 can be positioned, and the protective cover 6 can be used to protect the bolts on the surface of the flange 2 to prevent rainwater from corroding the bolts, causing difficulty in disassembly, thereby affecting the user's maintenance of the liquid level meter body 1.

[0035] Reference Figure 2 A sealing gasket 8 is arranged on the top of the flange 2, and the material of the sealing gasket 8 is rubber. By arranging the sealing gasket 8 made of rubber material, the sealing performance of the connection between the flange 2 and the device can be improved, thereby preventing gas from entering the inner cavity of the device and causing pollution.

[0036] Working principle: When in use, the user connects the wire to the interface at the front end of the liquid level meter body 1, and then presses the two positioning shells 405 in opposite directions. When the two positioning shells 405 move in opposite directions, the four arc rods 404 drive the four sliding sleeves 403 to move in opposite directions. When the four sliding sleeves 403 move in opposite directions, they squeeze the two reset springs 411. When the two positioning shells 405 move in opposite directions to the specified position, the user rotates the connecting rod 407 to insert the limit block 408 into the inner cavity of the limit plate 409 to position the positioning shell 405. By moving the position of the two positioning shells 405, the interface between the wire and the liquid level meter body 1 can be protected to prevent rainwater from corroding the joint and causing damage, thereby improving the safety of the use of the liquid level meter body 1. At the same time, the protective cover 6 can be used to protect the bolts on the surface of the flange 2 to prevent rainwater from corroding the bolts, causing disassembly difficulties, thereby affecting the user's maintenance of the liquid level meter body 1.

[0037] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A safe guided wave radar level meter, characterized in that: The liquid level meter comprises a liquid level meter body (1), a flange (2) is fixedly mounted on the surface of the liquid level meter body (1), a positioning frame (3) is fixedly mounted on the surface of the liquid level meter body (1) by means of bolts, and a protective component (4) is arranged on the front side of the positioning frame (3); The protection component (4) comprises two fixed shells (401), the rear sides of the two fixed shells (401) are fixedly connected to the positioning frame (3), the inner cavity of the fixed shell (401) is fixedly connected to a sliding rod (402), the surface of the sliding rod (402) is slidably connected to two sliding sleeves (403), the front side of the sliding sleeve (403) is fixedly connected to an arc rod (404), the side of the arc rod (404) away from the sliding sleeve (403) is fixedly connected to a positioning shell (405), the number of the positioning shells (405) is two, the front side of one of the positioning shells (405) is fixedly connected to a limiting rod (406), the surface of the limiting rod (406) is sleeved with a connecting rod (407), the rear side of the connecting rod (407) is fixedly connected to a limiting block (408), and the front side of the other positioning shell (405) is fixedly connected to a limiting disk (409).

2. A safe guided wave radar level gauge according to claim 1, characterized in that: The top and bottom of the fixed shell (401) are both provided with retaining blocks (410), and the rear side of the retaining block (410) is fixedly connected to the front side of the positioning frame (3).

3. The safe guided wave radar level gauge according to claim 1, characterized in that: A return spring (411) is fixedly connected between opposite sides of the two sliding sleeves (403), and the return spring (411) is sleeved on the surface of the sliding rod (402).

4. The safe guided wave radar level gauge according to claim 1, characterized in that: Positioning blocks (412) are fixedly connected to both sides of the sliding sleeve (403), positioning grooves (413) are provided on both sides of the inner cavity of the fixed shell (401), and the side of the positioning block (412) away from the sliding sleeve (403) is slidably connected to the inner wall of the positioning groove (413).

5. The safe guided wave radar level gauge according to claim 1, characterized in that: A slider (414) is fixedly connected to the rear side of the positioning shell (405), a slide groove (5) is provided on the front side of the liquid level meter body (1), and the rear side of the slider (414) is slidably connected to the inner wall of the slide groove (5).

6. The safety guided wave radar level gauge according to claim 1, characterized in that: A protective cover (6) is arranged on the top of the flange (2), a slot (7) is opened on the top of the flange (2), and the bottom of the protective cover (6) is plugged into the inner wall of the slot (7).

7. The safety guided wave radar level gauge according to claim 1, characterized in that: A sealing gasket (8) is arranged on the top of the flange (2), and the sealing gasket (8) is made of rubber.

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