Ultrasonic liquid level meter convenient to overhaul

Abstract

The utility model provides an ultrasonic level gauge convenient to overhaul, which comprises a level gauge, a hemisphere sleeved on the outer wall of the level gauge, an inner mounting ring sleeved on the outer wall of the hemisphere, a fixing ring connected to the top end of the inner mounting ring through a fixing rod, a plurality of groups of supports connected to the outer side of the fixing ring, and an outer mounting ring connected to the other ends of the plurality of groups of supports together. A gear ring is rotatably mounted on the inner wall of the outer mounting ring, multiple sets of gears are meshed with the inner wall of the gear ring, and racks are meshed with one sides of the multiple sets of gears. According to the utility model, the plurality of groups of balls are rotationally mounted on the inner side of the inner mounting ring, and the balls are matched with the hemispheroid, so that a user does not need to carry out positioning measurement during mounting, and the ultrasonic generator at the bottom end of the liquid level meter can be in a horizontal state by utilizing the self weight of the liquid level meter and the matched use of the hemispheroid and the plurality of groups of balls; the installation efficiency is improved, and the measurement accuracy is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of instruments and meters, and more specifically, particularly relates to an ultrasonic level meter which is easy to repair. Background Art

[0002] Ultrasonic level meter is a digital level meter controlled by a microprocessor. During measurement, ultrasonic pulses are emitted by a sensor (transducer). After being reflected by the liquid surface, the sound waves are received by the same sensor or ultrasonic receiver, and converted into electrical signals through piezoelectric crystals or magnetostrictive devices. The distance from the sensor to the surface of the measured liquid is calculated by the time between the emission and reception of the sound waves. Existing ultrasonic level meters are mainly divided into ultrasonic manhole level meters, pressure manhole level meters and radar manhole level meters.

[0003] At present, ultrasonic manhole level meters are mainly used in municipal pipe networks to monitor the water level changes of related facilities such as sewers, rainwater wells, and sewage wells. Through real-time measurement data, it can help municipal departments to effectively arrange and deploy flood control and waterlogging prevention work. In the prior art, when the ultrasonic manhole level meter is installed on the inner wall of the sewer, in order to ensure the accuracy of the ultrasonic manhole level meter, it is necessary to manually use a tape measure to locate it during installation, and then use mechanical equipment to drill holes on the inner wall of the sewer, so that the ultrasonic manhole level meter can be fixed and installed with fasteners. The installation process is dangerous and labor-intensive, and when the ultrasonic manhole level meter needs to be repaired in the later stage, the disassembly process is relatively cumbersome. Therefore, in view of this, the existing structure and defects are studied and improved, and an ultrasonic level meter that is easy to repair is provided, in order to achieve a more practical purpose. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides an ultrasonic liquid level meter that is easy to repair, which is achieved by the following specific technical means:

[0005] An ultrasonic level meter that is easy to maintain, comprises a level meter, the outer wall of the level meter is covered with a hemisphere, the outer wall of the hemisphere is covered with an inner mounting ring, the top of the inner mounting ring is connected to a fixing ring via a fixing rod, the outer side of the fixing ring is connected to multiple groups of brackets, the other ends of the multiple groups of brackets are commonly connected to an outer mounting ring, the inner wall of the outer mounting ring is rotatably mounted with a gear ring, the inner wall of the gear ring is meshingly connected to multiple groups of gears, one group of the gears is transmission-connected to a driving mechanism, one side of the multiple groups of gears is meshingly connected to a rack, one end of each of the racks is fixedly connected to a mounting block, and the outer wall of the rack is slidably connected to the outer mounting ring.

[0006] Furthermore, the driving mechanism includes a driving motor fixedly connected to the outer mounting ring via a fastener.

[0007] Furthermore, the cross section of the mounting block is L-shaped.

[0008] Furthermore, the plurality of groups of gears are at least two groups.

[0009] Furthermore, multiple groups of balls are rotatably mounted on the inner side of the inner mounting ring, and the multiple groups of balls are evenly arranged and in contact with the hemisphere, and the top of the hemisphere is provided with a through groove that matches the shape of the liquid level meter, and the bottom end of the head of the liquid level meter is set against the opening of the through groove.

[0010] Furthermore, the outer wall of the rack is fixedly connected with a convex strip, and the side surface of the outer mounting ring is provided with a plurality of sliding grooves adapted to the convex strip, and the rack is slidably connected to the outer mounting ring via the convex strip.

[0011] Furthermore, the bottom end of the outer mounting ring is fixedly connected with a mounting shaft for mounting a gear, and the gear is sleeved on the outer wall of the mounting shaft.

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

[0013] The utility model rotatably installs multiple sets of balls on the inner side of the inner installation ring, and uses the balls in combination with the hemisphere. During installation, the user does not need to perform positioning measurement. The ultrasonic generator at the bottom of the liquid level meter can be placed in a horizontal state by using the deadweight of the liquid level meter and the combination of the hemisphere and the multiple sets of balls, thereby improving the installation efficiency and ensuring the accuracy of the measurement. The through groove is provided at the top of the hemisphere, which provides convenience for the installation and disassembly of the liquid level meter, and is convenient for the staff to disassemble and repair the liquid level meter in the later stage.

[0014] The utility model can realize the synchronous extension and retraction of multiple sets of racks through the coordinated use of the gear ring, gear, drive motor and rack, and is thus suitable for installation operations in manholes of different diameters. By providing a carrying block, the utility model can be placed in a manhole cover placement groove, and the deadweight of the manhole cover can be utilized to ensure the stability of the installation of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the utility model.

[0016] Figure 2 It is a bottom view schematic diagram of the utility model.

[0017] Figure 3 It is a top view schematic diagram of the utility model.

[0018] Figure 4 It is a schematic diagram of the explosion structure of the utility model.

[0019] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0020] 1. Liquid level meter; 2. Outer mounting ring; 3. Rack; 4. Raised bar; 5. Gear; 6. Gear ring; 7. Bracket; 8. Carrying block; 9. Driving motor; 10. Hemisphere; 11. Inner mounting ring. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0022] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0024] As attached Figure 1 To Attachment Figure 4 As shown:

[0025] The utility model provides an ultrasonic level meter which is easy to maintain, comprising a level meter 1, wherein the outer wall of the level meter 1 is covered with a hemispherical body 10, the outer wall of the hemispherical body 10 is covered with an inner mounting ring 11, the top of the inner mounting ring 11 is connected with a fixing ring through a fixing rod, the outer side of the fixing ring is connected with a plurality of brackets 7, the other ends of the plurality of brackets 7 are commonly connected with an outer mounting ring 2, a gear ring 6 is rotatably mounted on the inner wall of the outer mounting ring 2, the inner wall of the gear ring 6 is meshingly connected with a plurality of gears 5, one group of the gears 5 is transmission-connected with a driving mechanism, one side of the plurality of gears 5 is meshingly connected with a rack 3, one end of each of the racks 3 is fixedly connected with a carrying block 8, and the outer wall of the rack 3 is slidably connected with the outer mounting ring 2.

[0026] The driving mechanism includes a driving motor 9 fixedly connected to the outer mounting ring 2 via fasteners.

[0027] Among them, the cross section of the carrying block 8 is L-shaped, and this design makes the carrying block 8 more stable for carrying.

[0028] There are at least two groups of gears 5 .

[0029] Among them, multiple groups of balls are rotatably installed on the inner side of the inner mounting ring 11, and the multiple groups of balls are evenly arranged and all contact the hemisphere 10, and the top of the hemisphere 10 is provided with a through groove adapted to the shape of the liquid level meter 1, and the bottom end of the head of the liquid level meter 1 is set against the opening of the through groove. By rotatably installing multiple groups of balls on the inner side of the inner mounting ring 11, the contact between the outer wall of the hemisphere 10 and the inner side of the inner mounting ring 11 is converted into rolling friction, and then through the dead weight of the liquid level meter 1 and the cooperation of multiple groups of balls, the ultrasonic generator at the bottom end of the liquid level meter 1 can be kept in a horizontal state, thereby improving the accuracy of the measurement data.

[0030] Among them, the outer wall of the rack 3 is fixedly connected with a convex strip 4, and the side of the outer mounting ring 2 is provided with multiple groups of sliding grooves adapted to the convex strip 4. The rack 3 is slidably connected to the outer mounting ring 2 through the convex strip 4. The coordinated use of the convex strip 4 and the sliding groove provides a guiding effect for the sliding of the rack 3, and at the same time, the rack 3 can be restricted to prevent the rack 3 from falling off.

[0031] Among them, the bottom end of the outer mounting ring 2 is fixedly connected with a mounting shaft for mounting the gear 5, and the gear 5 is sleeved on the outer wall of the mounting shaft. This design can ensure the stable operation of the gear 5 and prevent the gear 5 from being out of engagement with the gear ring 6.

[0032] The working principle of this embodiment: during installation, the user holds the bracket 7 and starts the drive motor 9 at the same time, drives the gear 5 to rotate through the drive motor 9, and then uses the gear ring 6 to drive the remaining groups of gears 5 to rotate. During the rotation of the gear 5, the rack 3 is driven to slide. The user can start and stop the drive motor 9 according to the size of the sewer bore, and then place it through the carrying block 8. After that, the user inserts the liquid level meter 1 into the through groove of the hemisphere 10, and places the hemisphere 10 in the middle of the inner mounting ring 11, and then places the sewer cover; when maintenance is required, the user can directly take the liquid level meter 1 out of the hemisphere 10 for maintenance.

[0033] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. An ultrasonic level meter that is easy to maintain, comprising a level meter (1), characterized in that: The outer wall of the liquid level meter (1) is sleeved with a hemispherical body (10), and the outer wall of the hemispherical body (10) is sleeved with an inner mounting ring (11). The top of the inner mounting ring (11) is connected to a fixing ring via a fixing rod. The outer side of the fixing ring is connected to multiple groups of brackets (7), and the other ends of the multiple groups of brackets (7) are commonly connected to the outer mounting ring (2). The inner wall of the outer mounting ring (2) is rotatably mounted with a gear ring (6), and the inner wall of the gear ring (6) is meshingly connected to multiple groups of gears (5), one group of which is transmission-connected to a driving mechanism, and one side of the multiple groups of gears (5) is meshingly connected to a rack (3), one end of each of the racks (3) is fixedly connected to a carrying block (8), and the outer wall of the rack (3) is slidably connected to the outer mounting ring (2).

2. The ultrasonic level meter that is easy to maintain as claimed in claim 1 is characterized in that: The driving mechanism comprises a driving motor (9) fixedly connected to the outer mounting ring (2) via a fastener.

3. The ultrasonic level meter that is easy to maintain as claimed in claim 1 is characterized in that: The cross section of the carrying block (8) is L-shaped.

4. The ultrasonic level meter that is easy to maintain as claimed in claim 1 is characterized in that: The plurality of groups of gears (5) are at least two groups.

5. The ultrasonic level meter that is easy to maintain as claimed in claim 1 is characterized in that: A plurality of groups of balls are rotatably mounted on the inner side of the inner mounting ring (11), and the groups of balls are evenly arranged and all contact the hemisphere (10). A through groove matching the shape of the liquid level meter (1) is provided at the top of the hemisphere (10), and the bottom end of the meter head of the liquid level meter (1) is arranged to abut against the opening of the through groove.

6. The ultrasonic level meter that is easy to maintain as claimed in claim 1 is characterized in that: The outer wall of the rack (3) is fixedly connected with a convex strip (4), the side surface of the outer mounting ring (2) is provided with a plurality of groups of sliding grooves adapted to the convex strip (4), and the rack (3) is slidably connected to the outer mounting ring (2) via the convex strip (4).

7. The ultrasonic level meter that is easy to maintain as claimed in claim 1 is characterized in that: The bottom end of the outer mounting ring (2) is fixedly connected to a mounting shaft for mounting a gear (5), and the gear (5) is sleeved on the outer wall of the mounting shaft.

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