Integrated radar level meter

Abstract

An integrated radar level meter comprises a window cover, a shell, a sensor, a positioning assembly and a limiting assembly, and a machine core shell is arranged in the shell in a sleeved mode. The overall size of the device is reduced, and the device is suitable for being installed and used in narrow space and wide in application range; the shell and the movement shell are sleeved into a whole, the sealing performance is good, and the service life is long; the installation positioning assembly is additionally arranged, so that an accurate position is provided for fixing a control part in the machine core shell, the stability is improved, the situations of wire breakage, wire pressing and the like generated in filling type installation are avoided, the service life is prolonged, and the monitoring accuracy is improved; the guide limiting assembly is additionally arranged, the installation precision of the sensor and the shell is improved, the installation efficiency is improved, the relative displacement in the circumferential direction and the axial direction is reduced, and the stability is improved.

Description

Technical Field

[0001] The present invention relates to the field of radar level gauges, and more specifically, to a highly integrated and compact radar level gauge. Background Art

[0002] Radar level gauges are widely used to determine the filling level of items contained in tanks. In existing radar level gauges, their main control components are all arranged inside the movement housing, usually suspended or simply inserted into the housing. During the installation process, due to human operation reasons, problems such as wire breakage, wire bridging, or loose connections are likely to occur, which not only affect the service life of the level gauge but also seriously affect the monitoring accuracy of the level gauge itself. Summary of the Invention

[0003] In view of the technical deficiencies mentioned in the background art, the present invention provides an integrated radar level gauge that is highly integrated, compact, has strong stability, and high monitoring accuracy.

[0004] To achieve the above technical objectives, the technical solution adopted by the present invention is: an integrated radar level gauge, including a window cover, a housing, and a sensor. A movement housing is sleeved inside the housing, and a positioning component and a limiting component are further included; The positioning component includes a positioning groove and a pad; A positioning groove is provided on the inner side wall of the movement housing; A pad is provided on the inner bottom wall of the housing, and the movement housing is placed on the pad; The limiting component includes a buckle and a clamping groove; The buckle is provided on the inner circumference of the installation opening at the lower part of the housing; The clamping groove is provided on the upper circumference of the sensor; The installation opening at the lower part of the housing is sleeved on the upper part of the sensor, and the buckle is arranged in the clamping groove.

[0005] As a preferred technical solution: a sealing component is further included; The sealing component includes a first sealing groove and a first sealing ring provided at the joint of the window cover and the upper part of the housing, a second sealing groove and a second sealing ring provided at the joint of the housing and the sensor, and a third sealing ring provided on the breather valve.

[0006] As a preferred technical solution: in the positioning component, the positioning groove is a long strip-shaped groove integral with the inner wall of the housing. A number of strip-shaped plates are fixedly connected to the inner wall of the housing in pairs, and a positioning groove is formed between two adjacent strip-shaped plates.

[0007] As a preferred technical solution: for the two strip-shaped plates forming each positioning groove, their inner sides are inclined surfaces and are fixedly connected to the inside of the housing; their outer sides are relatively close; the cross-section of the positioning groove is a trapezoidal structure that is wider on the inside and narrower on the outside.

[0008] As a preferred technical solution: In the positioning component, the cushion platform includes triangular cushion platforms arranged on both sides of the front end inside the housing and a strip-shaped cushion platform arranged at the central part of the rear end inside the housing.

[0009] As a preferred technical solution: Mounting holes are provided on the triangular cushion platform, the movement housing is arranged on the cushion platform, and the connecting piece connects and fixes the movement housing and the cushion platform through the mounting holes.

[0010] As a preferred technical solution: In the limiting component, at least two buckles are arranged on the inner circumference at the position of the housing mounting opening; the buckles protrude towards the center of the circle and are evenly distributed.

[0011] As a preferred technical solution: The clamping groove is arranged on the side wall of the upper part of the sensor, corresponding to the position of the buckle, and the number and shape of the clamping groove match those of the buckle.

[0012] As a preferred technical solution: The limiting component further includes a circlip; the circlip is sleeved on the outer side of the upper end of the sensor and is arranged at the joint of the sensor and the housing to limit the relative up and down movement of the housing and the sensor.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The overall volume of the device is reduced, suitable for installation and use in narrow spaces, with a wide range of applications; 2. The housing and the movement housing are sleeved together as a whole, with good sealing performance and long service life; 3. An installation and positioning component is added to provide a precise position for the fixation of the internal control components of the movement housing, improving stability, avoiding situations such as wire breakage and wire pressing in the stuffing installation, and improving service life and monitoring accuracy; 4. A guiding and limiting component is added to improve the installation accuracy of the sensor and the housing, improve the installation efficiency, reduce the relative displacement in the circumferential and axial directions, and improve stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 It is Figure 1 the A-A sectional view of

[0016] Figure 3 It is the front view of the housing in the present invention.

[0017] Figure 4 It is Figure 3 the top view of

[0018] Figure 5 It is Figure 4 the D-D sectional view of

[0019] Figure 6It is a schematic diagram of the overall structure of the window cover in the present invention. Figure 7 It is a cross-sectional view of the window cover.

[0020] Figure 8 It is a schematic diagram of the overall structure of the sensor in the present invention.

[0021] Figure 9 It is a cross-sectional view of the sensor.

[0022] Figure 10 It is an isometric view of the internal structure in the present invention.

[0023] Figure 11 It is an isometric view of the internal structure of the outer shell.

[0024] In the figure: window cover 1, blind plug 2, outer shell 3, sensor 4, cable fixing part 5, breather valve 6, first sealing ring 7, first sealing groove 7-1, positioning groove 8, movement housing 9, second sealing ring 10, second sealing groove 10-1, pad table 11, triangular pad table 11-1, strip-shaped pad table 11-2, snap ring 12, third sealing ring 13, buckle 14, mounting hole 15, card slot 16, stop part 17. Specific embodiments

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] See the attached Figures 1-11 , the integrated radar level gauge disclosed by the present invention includes a window cover 1, an outer shell 3 and a sensor 4. A movement housing 9 is sleeved inside the outer shell 3, and a breather valve 6, a cable fixing part 5 and a blind plug 2 are arranged outside the outer shell; it also includes a positioning component and a limiting component.

[0027] The positioning component includes a positioning groove 8 and a pad table 11, and the pad table includes a triangular pad table 11-1 and a strip-shaped pad table 11-2. A positioning groove 8 is arranged on the inner side wall of the movement housing 9, which is mainly used for installing a circuit board to effectively prevent the circuit boards from being stacked. The inner bottom wall of the outer shell 3 is an inclined surface with a reduced diameter inward, and a pad table 11 is arranged on the inclined surface. The movement housing 9 is sleeved inside the outer shell and is arranged on the pad table.

[0028] As a preferred embodiment, the positioning groove 8 is a long strip-shaped groove body integrated with the inner wall of the outer shell. The positioning groove can be arranged on one side of the inner wall; or according to the specifications of the outer shell, the positioning grooves can be evenly distributed on the inner wall circumference. In this embodiment, the positioning groove 8 is only arranged on the inner wall of the front side of the outer shell. A plurality of strip-shaped plates are fixedly connected to the inner wall of the outer shell in pairs, and a positioning groove 8 is formed between two adjacent strip-shaped plates. For the specific structure, see Figure 11 .

[0029] As a preferred embodiment, the two strip-shaped plates forming each positioning groove 8 have inclined inner sides and are fixedly connected to the interior of the housing, causing the strip-shaped plates to be inclined; their outer sides are relatively close. The cross-section of the positioning groove is a trapezoidal structure that is wider on the inside and narrower on the outside.

[0030] As another preferred embodiment, the cushion platforms in the positioning assembly include triangular cushion platforms 11-1 provided on both sides at the front end inside the housing and strip-shaped cushion platforms 11-2 provided at the central part of the rear end inside the housing. Mounting holes 15 are provided on the upper surfaces of the triangular cushion platforms 11-1. The movement mechanism housing 9 is arranged on the cushion platforms, and its bottom surface is connected and fixed to the triangular cushion platforms 11-1 after smaller connecting parts such as rivets pass through the mounting holes 15.

[0031] The limiting assembly includes a buckle 14 and a clamping groove 16. The buckle 14 is a convex block provided on the inner circumference of the circular periphery at the lower mounting opening position of the housing 3; the clamping groove 16 is provided on the upper circumference of the sensor 4. The lower mounting opening of the housing 3 is sleeved on the upper part of the sensor 4, and the buckle 14 is arranged in the clamping groove 16.

[0032] As another preferred embodiment, at least two buckles 14 are provided on the inner circumference at the housing mounting opening position. In this embodiment, the buckles 14 protrude towards the center of the circle and are evenly distributed. The clamping grooves 16 are provided on the side wall of the upper part of the sensor 4. The sensor 4 is sleeved inside the housing, that is, the outer diameter of the upper part of the sensor is smaller than the inner diameter of the housing mounting opening position. The buckles 14 protrude inwards and are directly embedded in the clamping grooves on the upper end circumference of the sensor. The lower part of the sensor 4 is a threaded part, and a stop portion 17 is provided on the threaded part. The positions of the clamping grooves 16 and the buckles 14 correspond to each other, and the number and shape of the clamping grooves match those of the buckles.

[0033] As a preferred embodiment, the limiting assembly further includes a snap ring 12. The snap ring 12 is sleeved on the outer side of the upper end of the sensor 4 and is arranged between the joint of the sensor 4 and the housing 3 to limit the relative up and down movement of the housing and the sensor 4.

[0034] As another preferred embodiment, the level gauge disclosed in the present invention further includes a sealing assembly. The sealing assembly includes a first sealing groove 7-1 and a first sealing ring 7 provided at the joint of the window cover 1 and the upper part of the housing 3, a second sealing groove 10-1 and a second sealing ring 10 provided at the joint of the housing 3 and the sensor 4, and a third sealing ring 13 provided on the breather valve 6.

[0035] In the present invention, the window cover 1 includes a window 1-1, a cover body 1-2, a first groove 1-3, a second groove 1-4, and an internal thread 1-5. The upper circumference of the cover body 1-2 is evenly divided into four arc-shaped structures. A second groove 1-4 is formed between adjacent arc-shaped structures. Two flat first grooves 1-3 are provided on the outer side of the cover body on the outer side of each arc-shaped structure. The first grooves facilitate the disassembly of the window cover, and the second groove 1-4 is a drainage groove to prevent water accumulation on the window cover.

Claims

1. An integrated radar level meter, comprising a window cover, a housing and a sensor, wherein a core housing is provided inside the housing, characterized in that: It also includes a positioning component and a limiting component; The positioning assembly includes a positioning groove and a pad; A positioning groove is provided on the inner side wall of the movement housing; The inner wall at the bottom of the shell is provided with a pad, and the movement shell is arranged on the pad; The limiting assembly includes a buckle and a slot; The buckle is arranged on the inner side of the circumference of the mounting opening at the lower part of the housing; The card slot is arranged on the upper circumference of the sensor; The mounting opening at the lower part of the shell is sleeved on the upper part of the sensor, and the buckle is arranged in the card slot.

2. The integrated radar level meter according to claim 1, characterized in that: Also included is a sealing assembly; The sealing assembly comprises a first sealing groove and a first sealing ring arranged at the junction of the window cover and the upper part of the shell, a second sealing groove and a second sealing ring arranged at the junction of the shell and the sensor, and a third sealing ring arranged on the breathing valve.

3. The integrated radar level meter according to claim 1, characterized in that: In the positioning assembly, the positioning groove is a long strip groove body integrated with the inner wall of the shell, and a plurality of strip plates are fixedly connected to the inner wall of the shell in groups of two, and the positioning groove is formed between two adjacent strip plates.

4. The integrated radar level meter according to claim 3, characterized in that: The two strip plates constituting each positioning groove have inclined inner sides fixedly connected to the inner part of the shell; their outer sides are relatively close; and the cross section of the positioning groove is a trapezoidal structure with a wide inner side and a narrow outer side.

5. The integrated radar level meter according to claim 1, characterized in that: In the positioning component, the pad includes a triangular pad arranged on both sides of the front end of the inner side of the shell and a strip pad arranged at the central part of the rear end of the inner side of the shell.

6. The integrated radar level meter according to claim 5, characterized in that: The triangular pad is provided with a mounting hole, the movement shell is arranged on the pad, and the connecting piece is connected and fixed to the movement shell and the pad through the mounting hole.

7. The integrated radar level meter according to claim 1, characterized in that: In the limiting assembly, at least two buckles are arranged on the inner circumference of the housing installation opening; the buckles protrude toward the center of the circle and are evenly distributed.

8. The integrated radar level meter according to claim 7, characterized in that: The card slot is arranged on the side wall of the upper part of the sensor, which corresponds to the position of the buckle, and the number and shape of the card slot match the buckle.

9. The integrated radar level meter according to claim 1, characterized in that: The limit assembly also includes a retaining spring; the retaining spring is sleeved on the outer side of the upper end of the sensor and is arranged at the junction of the sensor and the shell to limit the relative up and down movement of the shell and the sensor.

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