Ultrasonic water meter shell structure

Abstract

The utility model belongs to the technical field of ultrasonic water meters, and particularly relates to an ultrasonic water meter shell structure which comprises a meter shell base, a meter shell cover body covers the top of the meter shell base, the meter shell cover body is connected with the meter shell base through connecting screws, a glass window adheres to the inner side of the meter shell cover body, and the top face of the meter shell cover body is rotationally connected with a meter cover through a connecting shaft. A clamping block is arranged on the bottom face of the meter cover, a clamping groove matched with the clamping block in a clamping mode is formed in the top face of the meter shell cover body, an outer edge body is arranged on the bottom edge of the meter shell cover body, the inner wall of the outer edge body is connected with the outer side face of a sealing ring in an attached mode, the sealing ring is sleeved on the outer side of an inner edge body, and the inner edge body is arranged on the top face of the meter shell base. The sealing ring can fully seal the joint of the meter shell cover body and the meter shell base after being extruded by the meter shell cover body, is more convenient to disassemble compared with glue sealing, and is better in sealing performance compared with a flat gasket structure. And the clamping groove can be clamped with the clamping block, so that the position of the meter cover is locked, and the meter cover is prevented from being automatically closed under the action of gravity.

Description

Technical Field

[0001] The utility model belongs to the technical field of ultrasonic water meters, and in particular relates to a shell structure of an ultrasonic water meter. Background Art

[0002] Ultrasonic water meter is a water meter that uses ultrasonic sensing technology to measure water flow. It uses a non-contact measurement method to calculate water flow by emitting ultrasonic signals and measuring the time required for the signal to be reflected from the water flow and the water flow velocity. It has the advantages of high measurement accuracy and small error, and has strong adaptability and stability. In addition, since ultrasonic water meters do not require mechanical transmission structures, they also have a longer service life and less maintenance costs.

[0003] In order to facilitate assembly, the existing ultrasonic water meter shell is divided into two structures. After the internal electrical components are installed, the two parts of the shell are assembled. In order to ensure the waterproof sealing of the shell, sealant is used to seal the connection gaps of the shell. Although this method ensures the waterproof effect, it is not convenient for subsequent maintenance work. In addition, in order to protect the glass window in the shell, a hinged meter cover is provided on the outside of the glass mirror. In actual use, some ultrasonic water meters are installed in a vertical manner due to the limitation of the installation position. This will result in the meter cover being held by the reader when it is opened for reading. Otherwise, when the reader lets go, the meter cover will automatically close under the action of its own weight, which brings great inconvenience to the normal meter reading operation. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide an ultrasonic water meter shell structure to solve the problem that the existing ultrasonic water meter shell uses sealant to seal the outer shell, which is not convenient for subsequent maintenance work, and the vertically installed water meter cover will automatically close under the action of its own weight.

[0005] To achieve the above objectives, the utility model adopts the following technical solution: an ultrasonic water meter shell structure, comprising a case base, the top cover of the case base is provided with a case cover body, the case cover body is connected to the case base by connecting screws, a glass window is bonded to the inner side of the case cover body, the top surface of the case cover body is rotatably connected to the cover by a connecting shaft, the bottom surface of the cover is provided with a snap-in block, the top surface of the case cover body is provided with a snap-in groove adapted to fit the snap-in block, the bottom edge of the case cover body is provided with an outer edge body, the inner wall of the outer edge body is fitted to the outer side surface of a sealing ring, the sealing ring is sleeved on the outer side of an inner edge body, and the inner edge body is provided on the top surface of the case base.

[0006] The beneficial effects of the utility model are as follows: the sealing ring can fully seal the connection between the case cover and the case base after being squeezed by the case cover. It is more convenient to disassemble than glue sealing and has better sealing than a flat gasket structure. The snap-fit ​​groove can snap-fit ​​the snap-fit ​​block, thereby locking the position of the watch cover and preventing the watch cover from closing automatically under the action of gravity.

[0007] In order to effectively seal the connection between the case base and the case cover;

[0008] As a further improvement of the above technical solution: the cross-sectional shape of the sealing ring in the axial direction is a right-angled trapezoidal structure, the cross-sectional shape of the outer body in the axial direction is a right-angled trapezoidal structure, and the hypotenuses of the right-angled trapezoidal sections of the outer body and the sealing ring are the same.

[0009] The beneficial effect of this improvement is that during the tightening of the connecting screws, the case cover moves toward the case base, the outer edge body squeezes the side of the sealing ring, so that the sealing ring is pressed tightly against the case base, and at the same time, the inclined surface of the outer edge body is pressed tightly against the inclined surface of the sealing ring, thereby effectively sealing the connection between the case base and the case cover.

[0010] In order to facilitate the installation of the sealing ring;

[0011] As a further improvement of the above technical solution: the inner edge body is an annular block structure, and the inner edge body and the sealing ring are clearance-fitted.

[0012] The beneficial effect of this improvement is that the sealing ring can be slidably sleeved on the outer side of the inner edge body from top to bottom, so that it can be easily installed and disassembled.

[0013] In order to ensure that the sealing ring plays an effective sealing role on the connection between the case base and the case cover;

[0014] As a further improvement of the above technical solution: the height of the outer edge body is not greater than the height of the sealing ring.

[0015] The beneficial effect of this improvement is that the outer edge body can effectively contact and squeeze the sealing ring, so that the sealing ring is evenly squeezed and pressed against the outer edge body and the base of the case.

[0016] In order to ensure the stability of the connection between the case base and the case cover;

[0017] As a further improvement of the above technical solution: the edge of the watch case cover is provided with a plurality of upper connecting seats for plug-in connecting screws, and the edge of the watch case base is provided with a plurality of lower connecting seats for threaded connecting screws.

[0018] The beneficial effect of this improvement is that a plurality of connecting screws can be inserted into the lower connecting seat and the upper connecting seat to stably connect the watch case base and the watch case cover.

[0019] In order to lock the position of the watch cover conveniently and stably;

[0020] As a further improvement of the above technical solution: the number of the clamping grooves is two, and they are symmetrically arranged on the watch case cover with the axis of the connecting shaft as the symmetry axis.

[0021] The beneficial effect of this improvement is that after the clamping block is clamped on the inner side of the clamping groove, the position of the watch cover on the watch case cover can be stably locked.

[0022] In order to save effort in pushing the cover;

[0023] As a further improvement of the above technical solution: a push block is provided on the top surface of the watch cover.

[0024] The beneficial effect of this improvement is that the operator's fingers can push out the raised push block, thereby pushing the table cover to rotate with less effort.

[0025] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a cross-sectional structural diagram of the utility model;

[0027] Figure 2 It is a schematic diagram of the structure of the utility model;

[0028] Figure 3 This is a schematic diagram of the structure of the utility model without the table cover;

[0029] Figure 4 It is a structural schematic diagram of the table cover in the utility model;

[0030] Figure 5 It is an enlarged view of A in the utility model;

[0031] In the figure: 1. case base; 11. inner edge body; 12. lower connecting seat; 2. case cover body; 21. outer edge body; 22. upper connecting seat; 3. connecting screws; 4. glass window; 5. connecting shaft; 6. case cover; 61. snap-fit ​​block; 62. push block; 7. snap-fit ​​groove; 8. sealing ring. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the present invention.

[0033] Embodiment 1:

[0034] like Figure 1—5 shows: an ultrasonic water meter shell structure, including a case base 1, the top cover of the case base 1 is equipped with a case cover 2, the case cover 2 is connected to the case base 1 by connecting screws 3, the inner side of the case cover 2 is bonded with a glass window 4, the top surface of the case cover 2 is rotatably connected to a cover 6 by a connecting shaft 5, the bottom surface of the cover 6 is provided with a snap-in block 61, the top surface of the case cover 2 is provided with a snap-in groove 7 adapted to fit the snap-in block 61, the bottom edge of the case cover 2 is provided with an outer edge body 21, the inner wall of the outer edge body 21 is fitted with the outer side of a sealing ring 8, the sealing ring 8 is sleeved on the outer side of an inner edge body 11, and the inner edge body 11 is provided The top surface of the case base 1, the sealing ring 8 can fully seal the connection between the case cover 2 and the case base 1 after being squeezed by the case cover 2. Compared with glue sealing, it is more convenient to disassemble and has better sealing than a flat gasket structure; the snap-in groove 7 can snap-in the snap-in block 61, thereby realizing the position locking of the watch cover 6 to prevent the watch cover 6 from automatically closing under the action of gravity. The cross-sectional shape of the sealing ring 8 in the axial direction is a right-angled trapezoidal structure, and the cross-sectional shape of the outer edge body 21 in the axial direction is a right-angled trapezoidal structure. The outer edge body 21 and the sealing ring 8 have the same slope of the hypotenuse of the right-angled trapezoidal cross section. During the tightening process of the connecting screw 3, the case cover 2 moves toward the case base 1, and the outer edge body 21 squeezes the side of the sealing ring 8, so that the sealing ring 8 is pressed tightly on the case base 1, and at the same time, the inclined surface of the outer edge body 21 is pressed tightly on the inclined surface of the sealing ring 8, thereby effectively sealing the connection between the case base 1 and the case cover 2. The inner edge body 11 is an annular block structure, and the inner edge body 11 and the sealing ring 8 are clearance-matched. The sealing ring 8 can be slidably sleeved on the outer side of the inner edge body 11 from top to bottom for convenient installation and disassembly. The height of the outer edge body 21 is not greater than the height of the sealing ring 8. The outer edge body 21 can effectively contact and squeeze the sealing ring 8, so that the sealing ring 8 is evenly squeezed and pressed against the outer edge body 21 and the case base 1. The edge of the case cover 2 is provided with An upper connecting seat 22 with multiple plug-in connecting screws 3 is provided, and the edge of the case base 1 is provided with a lower connecting seat 12 with multiple threaded connecting screws 3. The multiple connecting screws 3 can be inserted into the lower connecting seat 12 and the upper connecting seat 22 to stably connect the case base 1 and the case cover 2. The number of the clamping grooves 7 is two, and they are symmetrically arranged on the case cover 2 with the axis of the connecting shaft 5 as the symmetry axis. After the clamping block 61 is clamped on the inner side of the clamping groove 7, the position of the cover 6 on the case cover 2 can be stably locked. The top surface of the cover 6 is provided with a push block 62, and the operator's fingers can push out the raised push block 62, thereby pushing the cover 6 to rotate more effortlessly.

[0035] When the cover 6 is opened, the operator pushes the push block 62 to rotate the cover 6 with the connecting shaft 5 as support, and then rotates the cover 6 to one side of the glass window 4, and then the cover 6 is locked.

[0036] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0037] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. An ultrasonic water meter housing structure, characterized in that: The invention comprises a watch case base (1), the top cover of the watch case base (1) is provided with a watch case cover body (2), the watch case cover body (2) is connected to the watch case base (1) by connecting screws (3), a glass window (4) is bonded to the inner side of the watch case cover body (2), the top surface of the watch case cover body (2) is rotatably connected to a watch cover (6) by a connecting shaft (5), the bottom surface of the watch cover (6) is provided with a snap-fit ​​block (61), the top surface of the watch case cover body (2) is provided with a snap-fit ​​groove (7) adapted to snap-fit ​​the snap-fit ​​block (61), the bottom edge of the watch case cover body (2) is provided with an outer edge body (21), the inner wall of the outer edge body (21) is fitted to the outer side surface of a sealing ring (8), the sealing ring (8) is sleeved on the outer side of an inner edge body (11), and the inner edge body (11) is provided on the top surface of the watch case base (1).

2. The ultrasonic water meter housing structure according to claim 1, characterized in that: The cross-sectional shape of the sealing ring (8) in the axial direction is a right-angled trapezoidal structure, the cross-sectional shape of the outer edge body (21) in the axial direction is a right-angled trapezoidal structure, and the right-angled trapezoidal cross-sectional shapes of the outer edge body (21) and the sealing ring (8) have the same slope.

3. The ultrasonic water meter housing structure according to claim 1, characterized in that: The inner edge body (11) is an annular block structure, and the inner edge body (11) and the sealing ring (8) are clearance-matched.

4. The ultrasonic water meter housing structure according to claim 1, characterized in that: The height of the outer edge body (21) is not greater than the height of the sealing ring (8).

5. The ultrasonic water meter housing structure according to claim 1, characterized in that: The edge of the watch case cover (2) is provided with a plurality of upper connection seats (22) for plugging in connection screws (3), and the edge of the watch case base (1) is provided with a plurality of lower connection seats (12) for threaded connection screws (3).

6. The ultrasonic water meter housing structure according to claim 1, characterized in that: The number of the clamping grooves (7) is two, and they are symmetrically arranged on the watch case cover (2) with the axis of the connecting shaft (5) as the symmetry axis.

7. The ultrasonic water meter housing structure according to claim 1, characterized in that: A push block (62) is provided on the top surface of the cover (6).

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