A water meter housing detection device

Abstract

The application provides a water meter shell detection device, and belongs to the technical field of detection devices. The device solves the problem of low detection precision of the inner contour of the existing water meter shell. The water meter shell detection device comprises a support plate which can be connected to a seat body and abuts against the outer wall of the seat body. The detection device further comprises a detection plate which is inserted into the support plate and can be embedded into the inner cavity of the seat body from the opening. The detection plate abuts against the lower side of the support plate. The outer side wall of the end of the detection plate embedded into the seat body is provided with a U-shaped clamping strip. The detection plate is provided with a U-shaped sealing ring on the clamping strip. The sealing ring can be embedded into a sealing groove, and the outer side wall of the sealing ring is attached to the sealing groove. The detection device further comprises a limiting plug plate which is provided with an insertion arm. One end of the detection plate protrudes from the support plate and is provided with a bayonet on the end. The limiting plug plate is placed on the support plate. The water meter shell detection device can detect water meter shells of different sizes, and improves the practicability of the detection device.

Description

A water meter casing testing device Technical Field

[0001] This invention belongs to the field of detection device technology and relates to a water meter casing detection device. Background Technology

[0002] The water meter housing is mainly used to count the flow of water into the house. Therefore, the water meter is equipped with an impeller bracket and an impeller assembly to accurately measure the flow of water through the water meter. The inner contour of the water meter housing has a sealing surface for the impeller bracket to be installed. The sealing surface needs to ensure dimensional accuracy to prevent some water from passing directly between the impeller bracket and the inner wall of the water meter housing, which would affect the measurement accuracy.

[0003] As shown in Figure 1, the existing water meter housing includes a columnar seat 1 with an opening 11 on the outer side wall, and an arc-shaped sealing groove 12 on the inner side wall of the middle part of the seat 1.

[0004] The current method of measuring the inner wall of a water meter casing relies on visual inspection by workers. However, since the inner wall is located inside the water meter casing, unevenness is difficult to detect. Therefore, measurements are usually taken after the internal components are assembled. However, this method is complex and cannot determine whether the problem stems from unevenness in the inner wall or a problem with the impeller support. Consequently, the accuracy of the measurement is low, making it impossible to precisely determine whether the issue lies with the inner wall or the impeller support. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a water meter housing detection device. The technical problem to be solved by this invention is: how to solve the problem of low detection accuracy of the inner contour of existing water meter housings.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] A water meter casing detection device includes a support plate that can be connected to a base and abuts against the outer wall of the base. The device further includes a detection plate inserted into the support plate and capable of being embedded into the inner cavity of the base through an opening. The detection plate abuts against the lower side of the support plate. A U-shaped retaining strip is provided on the outer wall of the end of the detection plate embedded in the base. A U-shaped sealing ring is installed on the retaining strip. The sealing ring can be embedded in a sealing groove, and its outer wall fits against the sealing groove. The device also includes a limiting insert plate with a connecting arm. One end of the detection plate protrudes from the support plate and has a locking slot. The limiting insert plate is placed on the support plate and is perpendicular to the detection plate, such that the connecting arm is inserted into the locking slot of the detection plate and abuts against the top wall of the locking slot. The support plate also has at least one observation hole communicating with the inner cavity of the base.

[0008] When inspecting the inner contour of the water meter casing, the inspection plate is first embedded into the base. The inspection plate is inserted into the inner cavity of the base through the opening. A U-shaped retaining strip is located on the outer wall of the end of the inspection plate embedded in the base, and a sealing ring is installed on the retaining strip. The sealing ring is embedded into the sealing groove of the base as the inspection plate is positioned. Then, a support plate is placed on the inspection plate. The support plate is connected to the base and abuts against the outer wall of the base, thus positioning the inspection plate on the base. The sealing ring abuts against the groove wall, and the fit between the sealing ring and the groove wall is observed through the observation holes on the support plate and the water passage holes at both ends of the base. The sealing ring design allows for... The device simulates the installation and use of the impeller bracket, and amplifies minute unevenness defects in the sealing groove wall through the elastic deformation of the sealing ring. If there are tiny protrusions in the sealing groove wall of the seat, it will cause excessive local pressure on the sealing ring. The state of the sealing ring can be directly observed, and the state of the inner contour of the water meter housing can be clearly observed, resulting in higher detection accuracy. By adopting a quick-connect and positioning method between the support plate and the detection plate, the detection plate can be replaced for water meter housings of different sizes. The detection plate and the support plate are stably connected by the limiting insert plate, thereby enabling the detection of water meter housings of different sizes and improving the practicality of the detection device.

[0009] In the above-mentioned water meter housing testing device, the inner wall of the sealing ring has a sealing groove for inserting a clip, and the inner wall of the sealing ring is in contact with the outer wall of the testing plate.

[0010] The sealing groove design allows the sealing ring to be stably and quickly engaged on the locking strip, improving its stability even after deformation. This facilitates observation, requiring only monitoring the state of the sealing ring and enhancing detection accuracy.

[0011] In the aforementioned water meter housing detection device, the outer wall of the sealing ring is an inwardly concave arc-shaped surface.

[0012] This structure allows the sealing ring to deform and fit better against the wall of the sealing groove, facilitating the inspection of the groove wall and improving inspection accuracy.

[0013] In the above-mentioned water meter housing detection device, there are two plug arms with abutting part between the two plug arms, and two bayonets. The plug arms are inserted into the corresponding bayonets and the end face of the abutting part is flat and abuts against the end face of the detection plate.

[0014] The two plug-in arms allow for stable mounting on the detection plate, and the abutment ensures stable positioning of the detection plate. This enables rapid installation of the detection device and improves the convenience and practicality of testing water meter housings of different sizes.

[0015] In the above-mentioned water meter housing detection device, the detection device also includes a baffle plate. The detection plate is a straight plate in the shape of a convex character. The wider end of the detection plate is the detection end, and the narrower end is the limiting end. The baffle plate is provided with a clearance hole for the limiting end to pass through. The baffle plate is sleeved on the limiting end and pressed tightly on the detection end by a support plate.

[0016] The shape of the detection plate allows its detection end to abut against the blocking plate. A limiting plate limits the limiting end, enabling the two to interlock. The blocking plate is limited by a support plate, and its circumferential limitation is achieved by the detection end of the detection plate. This allows for quick installation and limitation of the blocking plate, while also limiting the detection plate. This improves the installation efficiency of the blocking plate, detection plate, and support plate, thereby enhancing the detection effect on water meter housings of different sizes.

[0017] In the above-mentioned water meter housing detection device, the baffle plate can be located inside the base, and the outer wall of the baffle plate can fit against the opening wall of the base.

[0018] The baffle does not affect the installation of the support plate and the base, and can press the detection end of the detection plate into the base. The baffle can also be circumferentially limited by the base, which improves the stability of the detection device installation.

[0019] In the above-mentioned water meter housing detection device, the support plate is provided with an installation hole and two observation holes. The installation hole is located between the two observation holes, and the limiting plate is located between the two observation holes and outside the projection range of the observation holes.

[0020] By opening two observation holes on the left and right sides of the detection plate, it is convenient to inspect the detection plate. The limiting plate is located between the two observation holes and outside the projection range of the observation holes, so that the setting of the limiting plate will not affect the observation, making the observation convenient and further improving the detection accuracy.

[0021] In the above-mentioned water meter housing detection device, the left and right sides of the baffle plate are recessed to form relief walls, the relief walls are connected to the hole wall of the observation hole and the baffle plate is located outside the observation hole.

[0022] The placement of the buffer wall serves two purposes: firstly, it enhances the stability of the baffle plate within the mounting body; secondly, it facilitates observation and improves the ease of observation, thus improving both stability and convenience.

[0023] In the aforementioned water meter housing testing device, the mounting hole and the clearance hole are of equal size, and the wall of the clearance hole is connected to the wall of the mounting hole.

[0024] The installation holes and clearance holes ensure that the setting of the baffle plate does not affect the limiting effect of the support plate on the detection plate, and also improve the limiting effect of the baffle plate and support plate on the detection plate, thereby improving the stability of the detection plate.

[0025] In the above-mentioned water meter housing detection device, the hole walls at both ends of the mounting hole protrude outward to form a clearance opening, the two ends of the limiting end fit against the hole walls at both ends of the mounting hole, and an installation gap is formed between the limiting end and the clearance opening.

[0026] The design of the clearance opening and installation gap facilitates the insertion of the limiting end into the installation hole, improving the ease of installation, and does not affect the circumferential limiting of the limiting end.

[0027] Compared with existing technologies, this water meter casing detection device has the following advantages:

[0028] 1. The elastic deformation of the sealing ring amplifies the minute unevenness defects of the sealing groove wall. If there are minute protrusions in the sealing groove wall of the seat, it will cause excessive local pressure on the sealing ring. The state of the sealing ring can be directly observed, and the state of the inner contour of the water meter housing can be clearly observed, making the detection accuracy higher. By adopting a quick insertion and positioning method between the support plate and the detection plate, the detection plate can be replaced when dealing with water meter housings of different sizes. The detection plate and the support plate are stably inserted through the limiting insert plate, thereby enabling the detection of water meter housings of different sizes and improving the practicality of the detection device.

[0029] 2. The baffle plate is limited by the support plate, and the circumferential limitation of the baffle plate is achieved by the detection end of the detection plate. This allows for quick installation and limitation of the baffle plate, while also limiting the detection plate. This improves the installation efficiency of the baffle plate, detection plate, and support plate, thereby enhancing the detection effect on water meter housings of different sizes. Attached Figure Description

[0030] Figure 1 is a schematic diagram of the existing water meter casing.

[0031] Figure 2 is a schematic diagram of the assembled structure of the present invention.

[0032] Figure 3 is a top view of the assembled invention.

[0033] Figure 4 is a cross-sectional view of AA in Figure 3.

[0034] Figure 5 is a cross-sectional view of BB in Figure 3.

[0035] Figure 6 is a magnified view of part A in Figure 5.

[0036] Figure 7 is a partial exploded view of the present invention.

[0037] In the diagram, 1 is the base; 11 is the opening; 12 is the sealing groove; 2 is the support plate; 21 is the observation hole; 22 is the mounting hole; 22a is the clearance opening; 3 is the detection plate; 31 is the retaining strip; 32 is the bayonet; 33 is the detection end; 34 is the limiting end; 4 is the sealing ring; 41 is the sealing groove; 5 is the limiting insert plate; 51 is the insertion arm; 52 is the abutment part; 6 is the blocking plate; 61 is the clearance hole; 62 is the clearance wall; and 7 is the installation gap. Detailed Implementation

[0038] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0039] As shown in Figure 2-5, the water meter housing detection device includes a support plate 2 that can be connected to the base 1 and abut against the outer wall of the base 1.

[0040] Specifically, as shown in Figures 2-5, this detection device also includes a detection plate 3 inserted into the support plate 2 and embedded into the inner cavity of the seat 1 through the opening 11. The detection plate 3 abuts against the lower end of the support plate 2. The outer wall of one end of the detection plate 3 that can be embedded in the seat 1 has a U-shaped retaining strip 31. A U-shaped sealing ring 4 is installed on the retaining strip 31 of the detection plate 3. The sealing ring 4 can be embedded in the sealing groove 12 and the outer wall of the sealing ring 4 fits against the sealing groove 12. This detection device also includes a limiting insert plate 5 with a plug arm 51. One end of the detection plate 3 protrudes from the support plate 2 and has a retaining slot 32 at this end. The limiting insert plate 5 is placed on the support plate 2 and is perpendicular to the detection plate 3 so that the plug arm 51 is inserted into the retaining slot 32 of the detection plate 3 and abuts against the top wall of the retaining slot 32. The support plate 2 also has at least one observation hole 21 that communicates with the inner cavity of the seat 1.

[0041] When inspecting the inner contour of the water meter casing, the detection plate 3 is first embedded into the base 1. The detection plate 3 is inserted into the inner cavity of the base 1 through the opening 11. A U-shaped retaining strip 31 is located on the outer wall of the end of the detection plate 3 embedded in the base 1, and a sealing ring 4 is installed on the retaining strip 31. The sealing ring 4 is embedded into the sealing groove 12 of the base 1 as the detection plate 3 is positioned. Then, the support plate 2 is fitted onto the detection plate 3. The support plate 2 is connected to the base 1 and abuts against the outer wall of the base 1, thus positioning the detection plate 3 on the base 1. The sealing ring 4 abuts against the groove wall of the sealing groove 12. The fit between the sealing ring 4 and the groove wall of the sealing groove 12 is then observed through the observation hole 21 of the support plate 2 and the water passage holes at both ends of the base 1. By setting the sealing ring 4, the usage state of the impeller bracket installation can be simulated. Through the elastic deformation of the sealing ring 4, the small unevenness defects of the sealing groove 12 wall can be magnified. If there is a small protrusion in the sealing groove 12 wall of the seat 1, it will cause the sealing ring 4 to be under excessive pressure locally. The state of the sealing ring 4 can be directly observed, and the state of the inner contour of the water meter shell can be clearly observed, which makes the detection accuracy higher. By adopting the method of quick insertion and positioning of the support plate 2 and the detection plate 3, when dealing with water meter shells of different sizes, the detection plate 3 can be replaced. The detection plate 3 and the support plate 2 are stably inserted through the limiting insert plate 5, thereby realizing the detection of water meter shells of different sizes and improving the practicality of the detection device.

[0042] As shown in Figures 4-6, the inner wall of the sealing ring 4 has a sealing groove 41 into which the clip 31 can be inserted. The inner wall of the sealing ring 4 fits against the outer wall of the detection plate 3. The outer wall of the sealing ring 4 is an inwardly concave arc surface. There are two insertion arms 51, and there is an abutment part 52 between the two insertion arms 51. There are two slots 32. The insertion arm 51 is inserted into the corresponding slot 32 and the end face of the abutment part 52 is flat and abuts against the end face of the detection plate 3.

[0043] As shown in Figures 4 and 7, the detection device also includes a baffle plate 6. The detection plate 3 is a straight plate in the shape of a convex character. The wider end of the detection plate 3 is the detection end 33, and the narrower end is the limiting end 34. The baffle plate 6 has a clearance hole 61 for the limiting end 34 to pass through. The baffle plate 6 is fitted onto the limiting end and pressed onto the detection end 33 by the support plate 2. The baffle plate 6 can be located inside the base 1, and the outer wall of the baffle plate 6 can fit against the opening wall of the opening 11 of the base 1.

[0044] As shown in Figures 3, 5, and 7, the support plate 2 has an installation hole 22 and two observation holes 21 as described above. The installation hole 22 is located between the two observation holes 21. The limiting plate 5 is located between the two observation holes 21 and outside the projection range of the observation holes 21. The left and right sides of the blocking plate 6 are recessed to form relief walls 62. The relief walls 62 are in contact with the hole walls of the observation holes 21 and the blocking plate 6 is outside the projection range of the observation holes 21. The installation hole 22 and the relief holes 61 are equal in size, and the hole walls of the relief holes 61 are in contact with the hole walls of the installation hole 22. The hole walls at both ends of the installation hole 22 protrude outward to form relief openings 22a. The two ends of the limiting end 34 are in contact with the hole walls at both ends of the installation hole 22, and an installation gap 7 is formed between the limiting end 34 and the relief openings 22a.

[0045] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A water meter housing detection device, comprising a support plate (2) that can be connected to a base (1) and abuts against the outer wall of the base (1), characterized in that, The detection device also includes a detection plate (3) that is inserted into the support plate (2) and can be embedded into the inner cavity of the seat (1) through the opening (11). The detection plate (3) abuts against the lower side of the support plate (2). The outer side wall of the detection plate (3) that can be embedded in the seat (1) has a U-shaped retaining strip (31). A U-shaped sealing ring (4) is installed on the retaining strip (31) of the detection plate (3). The sealing ring (4) can be embedded in the sealing groove (12) and the outer side wall of the sealing ring (4) is flush with the sealing groove (12). In addition to the fit, the detection device also includes a limiting plate (5) with a plug arm (51). One end of the detection plate (3) protrudes from the support plate (2) and has a bayonet (32) on the end. The limiting plate (5) is placed on the support plate (2) and the limiting plate (5) is set perpendicular to the detection plate (3) so that the plug arm (51) is inserted into the bayonet (32) of the detection plate (3) and abuts against the top wall of the bayonet (32). The support plate (2) is also provided with at least one observation hole (21) that communicates with the inner cavity of the seat body (1).

2. The water meter housing detection device according to claim 1, characterized in that, The inner wall of the sealing ring (4) has a sealing groove (41) into which the card strip (31) can be inserted, and the inner wall of the sealing ring (4) is in contact with the outer wall of the detection plate (3).

3. The water meter housing detection device according to claim 1 or 2, characterized in that, The outer wall of the sealing ring (4) is an inwardly concave arc-shaped surface.

4. The water meter housing detection device according to claim 1 or 2, characterized in that, Two plug arms (51) are provided, and there is an abutment part (52) between the two plug arms (51). Two bayonets (32) are provided. The plug arms (51) are inserted into the corresponding bayonets (32) and the end face of the abutment part (52) is flat and abuts against the end face of the detection plate (3).

5. The water meter housing detection device according to claim 1 or 2, characterized in that, The detection device also includes a baffle plate (6). The detection plate (3) is a straight plate in the shape of a convex character. The wider end of the detection plate (3) is the detection end (33), and the narrower end is the limiting end (34). The baffle plate (6) has a clearance hole (61) through which the limiting end (34) can pass. The baffle plate (6) is fitted on the limiting end (34) and pressed on the detection end (33) by the support plate (2).

6. The water meter housing detection device according to claim 5, characterized in that, The baffle plate (6) can be located inside the seat (1), and the outer wall of the baffle plate (6) can fit against the opening wall of the opening (11) of the seat (1).

7. The water meter housing detection device according to claim 5, characterized in that, The support plate (2) is provided with an installation hole (22) and two observation holes (21). The installation hole (22) is located between the two observation holes (21), and the limiting plate (5) is located between the two observation holes (21) and outside the projection range of the observation holes (21).

8. The water meter housing detection device according to claim 7, characterized in that, The left and right sides of the baffle plate (6) are recessed to form a relief wall (62), the relief wall (62) is connected to the hole wall of the observation hole (21) and the baffle plate (6) is located outside the projection range of the observation hole (21).

9. The water meter housing detection device according to claim 7, characterized in that, The mounting hole (22) and the clearance hole (61) are of equal size, and the wall of the clearance hole (61) is connected to the wall of the mounting hole (22).

10. The water meter housing detection device according to claim 7, characterized in that, The hole walls at both ends of the mounting hole (22) protrude outward to form a relief opening (22a). The two ends of the limiting end (34) fit against the hole walls at both ends of the mounting hole (22), and an installation gap (7) is formed between the limiting end (34) and the relief opening (22a).

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