Externally-attached ultrasonic liquid level meter

Abstract

The utility model discloses an externally attached ultrasonic level gauge, which relates to the technical field of detection equipment and comprises two arc-shaped frames, arc-shaped sliding grooves are formed in the side walls of the arc-shaped frames, arc-shaped sliding blocks are connected in the arc-shaped sliding grooves in a sliding mode, a plurality of bottom teeth are arranged on the outer walls of the ends, close to each other, of the bottoms of the arc-shaped frames, and the arc-shaped sliding blocks are connected with the arc-shaped sliding grooves in a sliding mode. A double-shaft motor drives a gear to rotate through a connecting shaft after working, the gear is meshed with bottom teeth at the bottom of an arc-shaped frame, so that after the double-shaft motor works, an inner support is connected with an arc-shaped sliding block in an arc-shaped sliding groove, and the arc-shaped sliding block can slide in the arc-shaped sliding groove in an arc-shaped reciprocating mode; the top plate between the inner supports can move in an arc shape along with the inner supports, the arc shape is a local circle and is more attached to the circular outer wall of the horizontal tank, a probe installed on the top plate is always kept close to the liquid level, the probe can better adapt to changes of the liquid level in the horizontal tank, the real situation of the liquid level can be better reflected, and the measurement precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to an external ultrasonic liquid level meter. Background Art

[0002] According to the application number "CN202222803577.9", the probe is first fixed in the mounting tube through the setting of a support plate, a motor, a screw, a mounting seat and a mounting tube. During measurement, the motor can be started to drive the screw to rotate, so that the screw drives the mounting seat to move along the screw, and the mounting seat drives the probe to move at the bottom of the horizontal tank through the mounting tube, so as to change the position of the probe, so that the probe can measure different positions of the horizontal tank, and measure multiple data for comparative analysis, without manual operation of the probe, saving manpower.

[0003] In the process of implementing this solution, the inventors found that the following problems in the prior art have not been well solved: if the liquid level is non-horizontal due to flow in the horizontal tank, then the lateral horizontal movement mechanism proposed by them may not be able to fully capture the actual height changes of the liquid level, especially when the liquid level fluctuates greatly, the measurement accuracy may be affected. Utility Model Content

[0004] The main purpose of the utility model is to provide an external ultrasonic level meter, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] An external ultrasonic level meter comprises an arc frame, wherein the number of the arc frames is two, the side walls of the arc frames are each provided with an arc groove, the interior of the arc groove is each slidably connected with an arc slider, a plurality of bottom teeth are provided on the outer wall close to one end of the bottom of the arc frame, a base is provided at the bottom between the arc frames, inner brackets are fixed at the top four corners of the base, a dual-axis motor is installed at the bottom of the base, connecting shafts are fixed to the output ends at both ends of the dual-axis motor, gears are fixed to the outer wall of the connecting shaft located at the bottom tooth position, and a top plate is fixedly connected to the top between the inner brackets.

[0007] Preferably, the top of the inner bracket is fixedly connected to the side walls of the arc-shaped sliding block respectively.

[0008] Preferably, the gears are respectively meshed and connected with bottom teeth at matching positions.

[0009] Preferably, two outer brackets are fixed to the sides of the arc-shaped sliding blocks away from each other, outer plates are fixed between the outer brackets, and the outer plates are respectively rotatably connected to one end of the connecting shaft away from the dual-axis motor.

[0010] Preferably, inner plates are fixed to both ends of the bottom of the base, and the connecting shafts penetrate through the inner plates respectively and are rotatably connected thereto.

[0011] Preferably, two inner support rods are fixed at both ends of the arc-shaped frames, and flange feet are fixed at both ends of the arc-shaped frames on the side away from each other.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] After working, the dual-axis motor drives the gear to rotate through the connecting shaft, and the gear engages with the bottom teeth of the bottom of the arc frame, so that after working, the dual-axis motor can be connected with the arc slider in the arc slide groove through the inner bracket, so that the arc slider can slide back and forth in the arc slide groove, and then the top plate between the inner brackets can follow the arc movement. The arc is partially circular and fits the outer wall of the circular tank more closely, so that the probe installed on the top plate always keeps a close distance to the liquid surface, which can better adapt to the changes of the liquid level in the tank, better reflect the real situation of the liquid level, and improve the measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the top view of the structure of an external ultrasonic level meter of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of an external ultrasonic level meter in a bottom-up view according to the utility model;

[0016] Figure 3 It is a partial structural schematic diagram of an external ultrasonic level meter of the utility model;

[0017] Figure 4 This is a schematic diagram of the enlarged structure of point A of an external ultrasonic level meter of the utility model.

[0018] In the figure: 1. arc frame; 2. arc slide; 3. inner bracket; 4. base; 5. dual-axis motor; 6. connecting shaft; 7. gear; 8. arc slider; 9. outer plate; 10. inner plate; 11. top plate; 12. bottom gear; 13. inner support rod; 14. flange support foot; 15. outer bracket. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] like Figure 1-4As shown, an external ultrasonic level meter includes an arc frame 1, the number of the arc frames 1 is two, the side walls of the arc frames 1 are each opened with an arc groove 2, the interior of the arc groove 2 is slidably connected with an arc slider 8, a plurality of bottom teeth 12 are arranged on the outer wall close to one end of the bottom of the arc frame 1, a base 4 is arranged at the bottom between the arc frames 1, inner brackets 3 are fixed to the top four corners of the base 4, a dual-axis motor 5 is installed at the bottom of the base 4, connecting shafts 6 are fixed to the output ends at both ends of the dual-axis motor 5, gears 7 are fixed to the outer wall of the connecting shaft 6 located at the position of the bottom teeth 12, and a top plate 11 is fixedly connected to the top between the inner brackets 3.

[0021] Specifically, the top of the inner bracket 3 is fixedly connected to the side walls of the arc-shaped sliding block 8 respectively.

[0022] Specifically, the gears 7 are meshed and connected with the bottom teeth 12 at matching positions respectively.

[0023] Specifically, two outer brackets 15 are fixed on the sides of the arc-shaped sliders 8 that are away from each other, and outer plates 9 are fixed between the outer brackets 15. The outer plates 9 are respectively rotatably connected to the ends of the connecting shaft 6 away from the dual-axis motor 5. Inner plates 10 are fixed to both ends of the bottom of the base 4. The connecting shaft 6 is respectively penetrated by the inner plates 10 and rotatably connected, thereby increasing the stability and support of the connecting shaft 6 when rotating.

[0024] Specifically, two inner support rods 13 are fixed at both ends of the arc frame 1, and flange feet 14 are fixed at both ends of the arc frame 1 away from each other, so as to increase the stability of the arc frame 1 during operation.

[0025] Working principle:

[0026] After working, the dual-axis motor 5 drives the gear 7 to rotate through the connecting shaft 6. The gear 7 engages with the bottom tooth 12 at the bottom of the arc frame 1, so that after working, the dual-axis motor 5 is connected with the arc slider 8 in the arc slide 2 through the inner bracket 3, so that the arc slider 8 can slide back and forth in the arc slide 2, thereby making the top plate 11 between the inner brackets 3 able to follow the arc motion. The arc is partially circular and fits the outer wall of the circular tank more closely, so that the probe installed on the top plate 11 always keeps a close distance from the liquid surface, which can better adapt to the changes of the liquid surface in the tank, better reflect the real situation of the liquid surface, and improve the measurement accuracy.

[0027] The circuits, electronic components and control modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by the utility model does not involve improvements to software and methods.

[0028] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. 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, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An external ultrasonic level meter, comprising an arc frame (1), characterized in that: The number of the arc-shaped frames (1) is two, the side walls of the arc-shaped frames (1) are all provided with arc-shaped slide grooves (2), the interior of the arc-shaped slide grooves (2) are all slidably connected with arc-shaped sliders (8), a plurality of bottom teeth (12) are arranged on the outer wall close to one end of the bottom of the arc-shaped frames (1), a base (4) is arranged at the bottom between the arc-shaped frames (1), the top four corners of the base (4) are all fixed with inner brackets (3), a dual-axis motor (5) is installed at the bottom of the base (4), the output ends of both ends of the dual-axis motor (5) are all fixed with connecting shafts (6), the outer wall of the connecting shaft (6) located at the position of the bottom teeth (12) is fixed with gears (7), and the top between the inner brackets (3) is fixedly connected with a top plate (11).

2. The external ultrasonic level meter according to claim 1, characterized in that: The top of the inner bracket (3) is fixedly connected to the side walls of the arc-shaped sliding block (8) respectively.

3. The external ultrasonic level meter according to claim 1, characterized in that: The gears (7) are respectively meshed and connected with the bottom teeth (12) at matching positions.

4. The external ultrasonic level meter according to claim 1, characterized in that: Two outer brackets (15) are fixed on the sides of the arc-shaped sliders (8) that are away from each other, and outer plates (9) are fixed between the outer brackets (15). The outer plates (9) are respectively rotatably connected to one end of the connecting shaft (6) away from the dual-axis motor (5).

5. The external ultrasonic level meter according to claim 1, characterized in that: Inner plates (10) are fixed to both ends of the bottom of the base (4), and the connecting shaft (6) passes through the inner plates (10) and is rotatably connected thereto.

6. The external ultrasonic level meter according to claim 1, characterized in that: Two inner support rods (13) are fixed at both ends of the arc frame (1), and flange support feet (14) are fixed at both ends of the arc frame (1) on the side away from each other.

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