Anti-interference ultrasonic liquid level meter

Abstract

The utility model belongs to the technical field of liquid level meters, and particularly relates to an anti-interference ultrasonic liquid level meter which comprises an ultrasonic liquid level meter body, and the ultrasonic liquid level meter body comprises a shell, a probe arranged below the shell and a displayer arranged on the front side of the shell. The shell is detachably installed on the front side of the back plate, a transverse sliding groove is formed in the front side of the back plate, a transverse positive and negative double-end lead screw is rotationally arranged on the side wall of the sliding groove, sliding blocks are symmetrically arranged on the inner side of the sliding groove in a sliding mode, and threads on the two sides of a rod body of the positive and negative double-end lead screw are in threaded connection with and penetrate through the side walls of the sliding blocks correspondingly. Lower clamping plates are fixedly arranged on the front side walls of the two sliding blocks, the two lower clamping plates are arranged in a bilateral symmetry mode relative to the shell, and the sides, close to the shell, of the lower clamping plates are inwards concavely provided with containing grooves used for clamping the lower edge of the shell. According to the ultrasonic liquid level meter, the back plate is fixed to the position needing to be fixed in advance, extra tools are not needed when the ultrasonic liquid level meter body is installed or detached and replaced in the later period, and convenience and rapidness are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid level meters, in particular to an anti-interference ultrasonic liquid level meter. Background Art

[0002] Existing authorization announcement number CN 215677215 U discloses an ultrasonic level meter with anti-electromagnetic interference capability, comprising a housing, a mounting cover fixedly connected to the top of the housing, a bottom of the housing fixedly connected to a base plate, a nut provided at the bottom of the base plate, a probe fixedly connected to the bottom of the nut, the housing comprising a substrate layer, an anti-interference layer fixedly connected to the outer wall of the substrate layer, a composite waterproof layer fixedly connected to the outer wall of the anti-interference layer, the composite waterproof layer comprising a resin layer, a waterproof membrane fixedly connected to the surface of the resin layer. The utility model, through the coordinated use of the housing, the mounting cover, the base plate, the nut, the probe, the substrate layer, the anti-interference layer, the composite waterproof layer, the resin layer and the waterproof membrane layer, can effectively solve the problem of poor anti-electromagnetic interference capability of traditional ultrasonic level meters during use, thereby resulting in poor use effect. The device can avoid external electromagnetic interference and improve detection accuracy.

[0003] Although the above-mentioned patent discloses that the ultrasonic level meter has an anti-interference function, in actual use, the ultrasonic level meter needs to be installed at the desired installation position. However, most existing ultrasonic level meters are fixed by bolts, which results in the need to use tools to gradually tighten the bolts during later disassembly or replacement, which is inconvenient for users. Therefore, it is necessary to develop an anti-interference ultrasonic level meter. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0006] An anti-interference ultrasonic liquid level meter, comprising:

[0007] The ultrasonic level meter body includes a housing, a probe disposed below the housing, and a display on the front side of the housing;

[0008] The back plate, the shell is detachably mounted on the front side of the back plate, the front side of the back plate is provided with a transverse slide groove, the side wall of the slide groove is rotatably provided with a transverse positive and negative double-headed screw, the inner side of the slide groove is symmetrically provided with a slider, and the two side threads on the rod body of the positive and negative double-headed screw are respectively screwed to the side wall of the slider;

[0009] The lower clamping plate and the front side walls of the two sliders are fixedly provided with a lower clamping plate, and the two lower clamping plates are symmetrically arranged with respect to the outer shell. The side of the lower clamping plate close to the outer shell is concave and provided with a placement groove for clamping the lower edge of the outer shell. The distance between the front and rear side walls in the placement groove is greater than the width of the front and rear side walls of the outer shell. A pull rod is slidingly provided through the front side wall of the lower clamping plate, and a clamping block is provided at the rear end of the pull rod for supporting the front side wall of the ultrasonic liquid level meter body. A spring in the same direction as the pull rod rod body is provided between the front side wall of the clamping block and the front side wall in the placement groove. The rod body gap of the pull rod passes through the inner ring of the spring, and a pull ring is provided at the front end of the spring.

[0010] As a preferred solution of the anti-interference ultrasonic liquid level meter described in the utility model, the shell includes a substrate layer, the outer wall of the substrate layer is fixedly connected to the anti-interference layer, the outer wall of the anti-interference layer is fixedly connected to a composite waterproof layer, the composite waterproof layer includes a resin layer, and the surface of the resin layer is fixedly connected to a waterproof membrane layer.

[0011] As a preferred solution of the anti-interference ultrasonic level meter described in the present invention, a transverse sliding rod is fixedly provided on the inner side wall of the sliding groove, and the rod body of the sliding rod slides through the side walls of the two sliders.

[0012] As a preferred solution of the anti-interference ultrasonic level meter described in the utility model, an "L"-shaped mounting bracket is provided around the rear side wall of the back plate, and a mounting nail is screwed through the front side wall of the mounting bracket.

[0013] As a preferred solution of the anti-interference ultrasonic liquid level meter described in the utility model, one end of the forward and reverse double-ended screw extends and rotates through the side wall of the back plate and is provided with a knob 1.

[0014] As a preferred solution of the anti-interference ultrasonic liquid level meter described in the utility model, wherein: the side wall of each lower clamping plate is screwed through with a vertical threaded column, the lower end of the threaded column is provided with knob 2, the upper end of the threaded column is provided with a pressure plate rotated through the bearing seat, the pressure plate is used to press down on the top wall of the outer shell, vertical guide rods are fixed on both sides of the bottom of the pressure plate, and the rod body of the guide rod slides through the upper and lower walls of the lower clamping plate.

[0015] The beneficial effect of the utility model is that the back plate is fixed at a desired fixed position in advance, and no additional tools are required when the ultrasonic level meter body is installed or disassembled and replaced later, which is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive labor. Among them:

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the utility model in the rear view direction;

[0019] Figure 3 This is a schematic diagram of the structure of the utility model when viewed from the side;

[0020] Figure 4 For this utility model Figure 1 Schematic diagram of the structure after adjusting the height of the high-voltage board;

[0021] Figure 5 For this utility model Figure 4 Schematic diagram of the structure after the distance between the two lower splints is increased;

[0022] Figure 6 This is a schematic diagram of the structure of the ultrasonic level meter of the utility model after the main body is disassembled;

[0023] Figure 7 For this utility model Figure 5 Schematic diagram of the structure from a side view.

[0024] In the figure: ultrasonic liquid level meter body 100, housing 110, probe 120, display 130, back plate 200, slide groove 210, positive and negative double-ended screw 220, slide rod 230, slider 240, mounting bracket 250, mounting pin 260, knob 1 270, lower clamping plate 300, pull rod 310, clamping block 320, spring 330, pull ring 340, threaded column 350, pressure plate 360, guide rod 370, knob 2 380, placement slot 390. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing the embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0029] See also Figure 1-Figure 7 , shows a schematic diagram of the structure of an anti-interference ultrasonic level meter implementation of the utility model, please refer to Figure 1-Figure 7 , a detailed introduction to an anti-interference ultrasonic level meter:

[0030] An anti-interference ultrasonic level gauge includes an ultrasonic level gauge body 100, the ultrasonic level gauge body 100 including a housing 110, a probe 120 disposed below the housing 110, and a display 130 on the front side of the housing 110; the housing 110 includes a substrate layer, an anti-interference layer fixedly connected to an outer wall of the substrate layer, a composite waterproof layer fixedly connected to an outer wall of the anti-interference layer, the composite waterproof layer including a resin layer, a waterproof membrane layer fixedly connected to a surface of the resin layer. For details, reference may be made to existing published patents and will not be repeated here.

[0031] The housing 110 is detachably mounted on the front side of the back plate 200. A transverse slide groove 210 is provided on the front side of the back plate 200. A transverse double-ended screw rod 220 is rotatably provided on the side wall of the slide groove 210. A slider 240 is symmetrically slidably provided on the inner side of the slide groove 210. The threads on both sides of the rod body of the double-ended screw rod 220 are respectively screwed to the side wall of the slider 240.

[0032] A transverse sliding rod 230 is fixedly provided on the inner side wall of the sliding groove 210. The rod body of the sliding rod 230 slides through the side walls of the two sliders 240, and the sliding rod 230 serves as a limiting guide for the sliders 240.

[0033] An L-shaped mounting bracket 250 is provided around the rear side wall of the back plate 200. A mounting nail 260 is screwed through the front side wall of the mounting bracket 250 to initially fix the back plate 200 in a desired position. When installing or removing the ultrasonic level meter body 100 later, no additional tools are required, which is convenient and quick.

[0034] One end of the double-ended screw 220 extends and rotates through the side wall of the back plate 200 and is provided with a knob 270. The knob 270 is used to conveniently drive the double-ended screw 220 to rotate, thereby adjusting the distance between the two lower clamping plates 300 to facilitate clamping the left and right lower edges of the housing 110.

[0035] The front side walls of the two sliders 240 are fixedly provided with lower clamping plates 300, and the two lower clamping plates 300 are symmetrically arranged with respect to the shell 110. The side of the lower clamping plates 300 close to the shell 110 is concave and has a placement groove 390 for clamping the lower edge of the shell 110. The spacing between the front and rear side walls in the placement groove 390 is greater than the width of the front and rear side walls of the shell 110. The front side wall of the lower clamping plates 300 is slidably penetrated by a pull rod 310, and the rear end of the pull rod 310 is provided with a A clamping block 320 rests against the front side wall of the ultrasonic level meter body 100. A spring 330 is provided between the front side wall of the clamping block 320 and the front side wall of the placement slot 390, in the same direction as the shaft of the pull rod 310. The shaft of the pull rod 310 passes through the inner ring of the spring 330. A pull ring 340 is provided at the front end of the spring 330. The pull ring 340 facilitates pulling the pull rod 310, further compressing the spring 330, so that the clamping block 320 is away from the front side wall of the housing 110, making it easier to insert into the housing 110.

[0036] The side wall of each lower splint 300 is screwed through with a vertical threaded column 350, and the lower end of the threaded column 350 is provided with a knob 2 380, and the upper end of the threaded column 350 is provided with a pressure plate 360 through a bearing seat. The pressure plate 360 is used to press down on the top wall of the shell 110, and vertical guide rods 370 are fixed on both sides of the bottom of the pressure plate 360. The rod body of the guide rod 370 slides through the upper and lower walls of the lower splint 300, and the threaded column 350 is driven to rotate by knob 2 380, thereby adjusting the height of the pressure plate 360, so that the pressure plate 360 is pressed down on both sides of the top of the shell 110 to better fix the shell 110.

[0037] While the present invention has been described above with reference to specific embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as no structural conflicts exist, the various features of the embodiments disclosed herein may be combined with one another in any manner, and the omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. An anti-interference ultrasonic level meter, characterized in that: include: An ultrasonic liquid level meter body (100), comprising a housing (110), a probe (120) disposed below the housing (110), and a display (130) on the front side of the housing (110); The back plate (200) is provided with a housing (110) which is detachably mounted on the front side of the back plate (200). A transverse sliding groove (210) is provided on the front side of the back plate (200). A transverse positive and negative double-ended screw rod (220) is provided on the side wall of the sliding groove (210) for rotation. A slider (240) is provided on the inner side of the sliding groove (210) for symmetrical sliding movement. The threads on both sides of the rod body of the positive and negative double-ended screw rod (220) are respectively screwed to the side wall of the slider (240). A lower clamping plate (300) is fixedly provided on the front side walls of the two sliders (240), and the two lower clamping plates (300) are symmetrically arranged with respect to the shell (110). A side of the lower clamping plate (300) close to the shell (110) is concavely provided with a placement groove (390) for clamping the lower edge of the shell (110). The spacing between the front and rear side walls in the placement groove (390) is greater than the width of the front and rear side walls of the shell (110). The lower clamping plate (300) A pull rod (310) is provided on the front side wall of the pull rod (310) so as to slide through the front side wall thereof, a clamping block (320) is provided at the rear end of the pull rod (310) for abutting against the front side wall of the ultrasonic level meter body (100), a spring (330) in the same direction as the rod body of the pull rod (310) is provided between the front side wall of the clamping block (320) and the front side wall of the placement groove (390), the rod body of the pull rod (310) has a gap passing through the inner ring of the spring (330), and a pull ring (340) is provided at the front end of the spring (330).

2. The anti-interference ultrasonic level meter according to claim 1, characterized in that: The housing (110) comprises a substrate layer, an anti-interference layer is fixedly connected to the outer wall of the substrate layer, a composite waterproof layer is fixedly connected to the outer wall of the anti-interference layer, the composite waterproof layer comprises a resin layer, and a waterproof membrane layer is fixedly connected to the surface of the resin layer.

3. The anti-interference ultrasonic level meter according to claim 1, characterized in that: A transverse sliding rod (230) is fixedly provided on the inner side wall of the sliding groove (210), and the rod body of the sliding rod (230) slides through the side walls of the two sliding blocks (240).

4. The anti-interference ultrasonic level meter according to claim 1, characterized in that: An "L"-shaped mounting frame (250) is provided around the rear side wall of the back plate (200), and a mounting nail (260) is screwed and penetrated through the front side wall of the mounting frame (250).

5. The anti-interference ultrasonic level meter according to claim 1, characterized in that: One end of the forward and reverse double-ended screw rod (220) extends and rotates through the side wall of the back plate (200) and is provided with a knob (270).

6. The anti-interference ultrasonic level meter according to claim 1, characterized in that: A vertical threaded column (350) is screwed through the side wall of each lower splint (300), and a knob 2 (380) is provided at the lower end of the threaded column (350). A pressure plate (360) is provided at the upper end of the threaded column (350) through a bearing seat. The pressure plate (360) is used to press down on the top wall of the shell (110). Vertical guide rods (370) are fixed on both sides of the bottom of the pressure plate (360), and the rod body of the guide rod (370) slides through the upper and lower walls of the lower splint (300).

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