Sealing detection device for water meter installation

Abstract

The utility model discloses a sealing detection device for water meter installation, and belongs to the technical field of water meter sealing detection. A water storage tank is arranged at the lower end of the mounting shell, an electric push rod is fixedly mounted at the top of the mounting shell, a push rod of the electric push rod extends into the mounting shell, an air guide pipe is fixedly connected to the bottom of the push rod of the electric push rod, a side pipe opening of the air guide pipe is fixedly connected with a barometer, and the other end of the barometer is fixedly connected with a valve. And a supporting rod is fixedly arranged at the bottom of the inner wall of the mounting shell, the inner wall of the sliding rod is slidably connected with the outer wall of the supporting rod, and the top of the sliding rod is fixedly connected with the other set of sealing bearing plugs. According to the utility model, the sealing bearing plug is arranged, so that the pipe orifice of the water meter can be sealed by applying small pressure to the water meter, and the water meter can be prevented from being damaged. The device is mainly used for detecting the sealing performance of the water meter.

Description

Technical Field

[0001] The utility model belongs to the technical field of water meter sealing detection, in particular to a sealing detection device used for water meter installation. Background Art

[0002] Water meters are generally divided into two categories: volumetric water meters and velocity water meters. When selecting the specifications of a water meter, you should first estimate the size and range of the flow rate normally used, and then choose the water meter with the specification that is closest to the commonly used flow rate as the first choice. The air tightness of the water meter is an important indicator of the water meter's performance. After the water meter is produced, it needs to be tested for air tightness to ensure normal use.

[0003] A Chinese patent with authorization announcement number "CN220893690U" discloses a sealing detection device for water meter processing, including a base plate, a mobile unit, a fixed sealing unit and a driven unit; the mobile unit is installed on the base plate, the fixed sealing unit is installed on the mobile unit and the driven unit, and the left side of the upper end of the base plate is fixedly connected to the bottom end of the rectangular sliding frame. The device can quickly detect whether the seal is complete by filling the water meter with air and placing it in water.

[0004] During the later use, the device still had the following problems: the overall structure was complex and required the cooperation of multiple power mechanisms to realize the detection operation; the fixed sealing unit achieved sealing by forcefully squeezing the water meter pipe mouth. If the squeezing force was too great, it would easily cause damage to the water pipe mouth. If the squeezing force was not enough, it would easily cause a loose seal, affecting the experimental results. Utility Model Content

[0005] The technical problem to be solved by the utility model is: to overcome the shortcomings of the prior art and provide a sealing detection device for water meter installation, which can complete the sealing operation of the water meter pipe mouth by applying a small pressure to the water meter by arranging a sealing bearing plug, and at the same time, pressure is applied to the inner wall and the outer wall of the water meter pipe mouth at the same time, and most of the inward and outward pressures can offset each other. Compared with traditional equipment that applies pressure to the side wall of the water meter pipe mouth, this equipment can better avoid damage to the water meter.

[0006] The sealing detection device for water meter installation comprises a mounting shell, an observation and operation port is provided at the upper end of the mounting shell, a water storage tank is provided at the lower end of the mounting shell, an electric push rod is fixedly mounted on the top of the mounting shell, the push rod of the electric push rod extends into the interior of the mounting shell, an air duct is fixedly connected to the bottom of the push rod of the electric push rod, a pressure gauge is fixedly connected to the side pipe opening of the air duct, a valve is fixedly connected to the other end of the pressure gauge, a group of sealing bearing plugs is fixedly connected to the bottom pipe opening of the air duct, a support rod is fixedly provided at the bottom of the inner wall of the mounting shell, a spring is fixedly connected to the top of the support rod, a sliding rod is fixedly connected to the other end of the spring, the inner wall of the sliding rod is slidably connected to the outer wall of the support rod, and another group of sealing bearing plugs are fixedly connected to the top of the sliding rod.

[0007] Preferably, the sealing bearing plug includes a plug body, an expansion rod is provided at the upper center end of the plug body, a fixing rod is fixedly provided at the lower center end of the plug body, an air supply hole is fixedly opened at the center of the plug body, the air supply hole passes through the expansion rod and the fixing rod, an expansion cylinder is provided at the upper outer end of the plug body, a guide hole three is fixedly opened on the inner middle part of the plug body, a guide hole one is fixedly opened on the outer middle part of the plug body, and a guide hole two is also fixedly opened in the middle part of the plug body, and the guide hole two is located between the guide hole three and the guide hole one.

[0008] Preferably, the sealing bearing plug also includes an outer extrusion support frame and an inner extrusion support frame, a sealing rubber sleeve is provided between the outer extrusion support frame and the inner extrusion support frame, a push ring 1 is fixedly provided at the bottom of the outer extrusion support frame, the outer extrusion support frame cooperates with the inner wall of the expansion tube, the outer extrusion support frame abuts against the guide hole 1, a push ring 2 is fixedly provided at the bottom of the inner extrusion support frame, the inner extrusion support frame cooperates with the outer wall of the expansion rod, and the inner extrusion support frame abuts against the guide hole 3.

[0009] Preferably, an expansion piece is fixedly provided at the top end of the inner extrusion support frame, a groove is provided at the inner rear portion of the expansion piece, and a concave platform is provided at the outer front portion of the expansion piece.

[0010] Preferably, the sealing bearing plug also includes a transmission push platform, a push platform is provided on the upper end of the transmission push platform, an opening one is fixedly opened on the outer side of the push platform, and the opening one abuts against the outer extrusion support frame, an opening two is fixedly opened on the inner side of the push platform, and the opening two abuts against the inner extrusion support frame, a guide rod is fixedly connected to the inner side of the bottom of the push platform, the guide rod is slidably connected to the guide hole two, a compression spring one is fixedly connected to the outer side of the bottom of the push platform, the other end of the compression spring one is fixedly connected to the plug body, a pressure ring is fixedly connected to the bottom of the guide rod, a vertical tube is fixedly connected to the bottom of the pressure ring, a pull ring is fixedly connected to the bottom of the vertical tube, a compression spring three is provided on the inner wall of the vertical tube, the top end of the compression spring three is fixedly connected to the pressure ring, the bottom end of the compression spring three is fixedly connected to the push ring two, a compression spring two is provided on the outer wall of the vertical tube, the top end of the compression spring two is fixedly connected to the pressure ring, and the bottom end of the compression spring two is fixedly connected to the push ring one.

[0011] Preferably, a water level scale is fixedly provided on the inner wall of the water storage tank.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. By setting a sealing bearing plug, a small pressure can be applied to the water meter to complete the sealing operation of the water meter nozzle. At the same time, pressure is applied to the inner and outer walls of the water meter nozzle at the same time. Most of the inward and outward pressures can offset each other. Compared with traditional equipment that applies pressure to the side wall of the water meter nozzle, this equipment can better avoid damage to the water meter;

[0014] 2. By setting up the sealing rubber sleeve, it can contact the inner and outer walls of the water meter pipe mouth at the same time. Compared with traditional equipment that can only contact the side wall of the water meter pipe mouth, the contact area is greatly increased, and the sealing effect of the water meter is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the overall structure of the sealing bearing plug;

[0018] Figure 4 It is a schematic diagram of the internal structure of the sealing bearing plug;

[0019] Figure 5 Schematic diagram of the internal structure of the plug body;

[0020] Figure 6 It is a schematic diagram of the structure of the plug body, the outer extrusion support frame and the inner extrusion support frame;

[0021] Figure 7 It is a structural schematic diagram of the transmission push table;

[0022] Figure 8 It is a schematic diagram of the internal structure of the transmission push table;

[0023] Fig. 9 It is a schematic diagram of the structure of the transmission push platform, the outer extrusion support frame and the inner extrusion support frame;

[0024] Fig.10 It is a schematic diagram of the internal structure of the transmission push platform, the outer extrusion support frame and the inner extrusion support frame;

[0025] Fig.11 This is the exploded structural diagram of the sealing bearing plug;

[0026] Fig.12 It is a schematic diagram of the structure of the inner extrusion support frame and the expansion piece;

[0027] Fig.13 Schematic diagram of the structure of the expansion piece.

[0028] In the figure, 1, installation shell; 101, observation operation port; 102, water tank; 103, support rod; 2, electric push rod; 3, air guide tube; 4, air pressure gauge; 5, valve; 6, water meter; 7, sealing bearing plug; 701, plug body; 701A, expansion rod; 701B, expansion cylinder; 701C, fixing rod; 701D, air delivery hole; 701E, guide hole 1; 701F, guide hole 2; 701G, guide hole 3; 702, compression spring 3; 703, sealing rubber sleeve; 704, outer extrusion support; 704A, push ring one; 705, inner extrusion support; 705A, push ring two; 706, transmission push table; 706A, pull ring; 706B, pressure ring; 706C, guide rod; 706D, push table; 706E, opening one; 706F, opening two; 706G, vertical pipe; 707, compression spring one; 708, compression spring two; 8, water level scale; 9, sliding rod; 10, spring; 11, expansion piece; 1101, groove; 1102, concave table. DETAILED DESCRIPTION

[0029] The utility model is further described below in conjunction with the accompanying drawings:

[0030] The directional nouns involved in the detailed description paragraphs are only for the convenience of those skilled in the art to understand the technical solutions described in this application according to the visual orientation shown in the accompanying drawings. Unless otherwise clearly specified and limited, the terms "setting", "installation", "connection", etc. should be understood in a broad sense. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0031] like Figure 1 , Figure 2 and Figure 3As shown, a sealing detection device for water meter installation includes an installation shell 1, and an observation operation port 101 is opened at the upper end of the installation shell 1. The water meter 6 can be installed in place through the observation operation port 101 for detection operation, and the detection result can be observed and confirmed; a water storage tank 102 is provided at the lower end of the installation shell 1, and a water level scale 8 is fixedly provided on the inner wall of the water storage tank 102. An electric push rod 2 is fixedly installed on the top of the installation shell 1, and the push rod of the electric push rod 2 extends into the interior of the installation shell 1. An air duct 3 is fixedly connected to the bottom of the push rod of the electric push rod 2. A pressure gauge 4 is fixedly connected to the side pipe opening of the air duct 3. A valve 5 is fixedly connected to the other end of the pressure gauge 4. A group of sealing bearing plugs 7 are fixedly connected to the bottom pipe opening of the air duct 3. By setting the sealing bearing plugs 7, a small pressure can be applied to the water meter 6 to complete the sealing operation of the pipe opening of the water meter 6. At the same time, pressure is applied to the inner wall and the outer wall of the pipe opening of the water meter 6 at the same time. Most of the inward and outward pressures can offset each other. Compared with traditional equipment that applies pressure to the side wall of the pipe opening of the water meter 6, this equipment can better avoid damage to the water meter 6.

[0032] A support rod 103 is fixedly provided at the bottom of the inner wall of the mounting shell 1, a spring 10 is fixedly connected to the top of the support rod 103, a slide rod 9 is fixedly connected to the other end of the spring 10, the inner wall of the slide rod 9 is slidably connected to the outer wall of the support rod 103, and another set of sealing bearing plugs 7 is fixedly connected to the top of the slide rod 9. When performing the inspection, the staff puts the water meter 6 into the sealing bearing plug 7 at the bottom, and moves the electric push rod 2 downward, so that the upper sealing bearing plug 7 also contacts the water meter 6 pipe mouth. As the electric push rod 2 continues to push, the spring 10 begins to compress, and the water meter 6 gradually moves down into the water storage tank 102 and is finally completely submerged in the water. The electric push rod 2 continues to push, and the two groups of sealing bearing plugs 7 begin to expand due to the squeezing force brought by the side wall of the water meter 6 pipe mouth, so that the sealing rubber sleeve 703 completely surrounds the water meter 6 pipe mouth, completing the sealing operation, opening the valve 5, and introducing compressed air. The compressed air enters the water meter 6 through the air guide pipe 3 and the air delivery hole 701D, and the pressure in the water meter 6 gradually increases. By observing the barometer 4, it is ensured that the internal air pressure of the water meter 6 meets the standard. After standing for a period of time, observe whether there is gas exposure to complete the inspection of the sealing of the water meter 6.

[0033] like Figure 4 , Figure 5 and Fig.11As shown, the sealing bearing plug 7 includes a plug body 701, an expansion rod 701A is provided at the central upper end of the plug body 701, a fixing rod 701C is fixedly provided at the central lower end of the plug body 701, an air delivery hole 701D is fixedly opened at the center of the plug body 701, and the air delivery hole 701D passes through the expansion rod 701A and the fixing rod 701C, an expansion cylinder 701B is provided at the outer upper end of the plug body 701, a guide hole three 701G is fixedly opened on the inner side of the middle of the plug body 701, a guide hole one 701E is fixedly opened on the outer side of the middle of the plug body 701, and a guide hole two 701F is also fixedly opened in the middle of the plug body 701, and the guide hole two 701F is located between the guide hole three 701G and the guide hole one 701E.

[0034] like Figure 6 and Fig.10 As shown, the sealing bearing plug 7 also includes an outer extrusion support frame 704 and an inner extrusion support frame 705, and a sealing rubber sleeve 703 is provided between the outer extrusion support frame 704 and the inner extrusion support frame 705. By providing the sealing rubber sleeve 703, the inner wall and the outer wall of the pipe mouth of the water meter 6 can be contacted at the same time. Compared with the traditional equipment that can only contact the side wall of the pipe mouth of the water meter 6, the contact area is greatly increased, and the sealing effect of the water meter 6 is greatly improved; a push ring 1 704A is fixedly provided at the bottom of the outer extrusion support frame 704, the outer extrusion support frame 704 cooperates with the inner wall of the expansion cylinder 701B, the outer extrusion support frame 704 abuts against the guide hole 1 701E, and a push ring 2 705A is fixedly provided at the bottom of the inner extrusion support frame 705, the inner extrusion support frame 705 cooperates with the outer wall of the expansion rod 701A, and the inner extrusion support frame 705 abuts against the guide hole 3 701G. When the push ring 1 704A and the push ring 2 705A are pushed downward, the outer extrusion support frame 704 and the inner extrusion support frame 705 move downward and deform under the limiting action of the expansion cylinder 701B and the expansion rod 701A. The outer extrusion support frame 704 contracts inward, and the sealing rubber sleeve 703 is squeezed to fit the outer wall of the water meter 6 pipe mouth. The inner extrusion support frame 705 expands outward, and the sealing rubber sleeve 703 is squeezed to fit the inner wall of the water meter 6 pipe mouth, thereby completing the sealing operation.

[0035] like Fig.12 and Fig.13 As shown, an expansion piece 11 is fixedly provided at the top of the inner extrusion support frame 705, a groove 1101 is provided at the inner rear part of the expansion piece 11, and a concave platform 1102 is provided at the outer front part of the expansion piece 11. By providing the expansion piece 11, the inner extrusion support frame 705 can be more fully contacted with the sealing rubber sleeve 703 to ensure the sealing effect, and the concave platform 1102 and the groove 1101 cooperate with each other to ensure that the expansion piece 11 can still keep in line with each other during the process of following the expansion of the inner extrusion support frame 705, avoiding the high and low staggered arrangement, which affects the extrusion effect on the sealing rubber sleeve 703.

[0036] like Figure 7 , Figure 8 and Fig. 9As shown, the sealing bearing plug 7 also includes a transmission push platform 706, a push platform 706D is provided at the upper end of the transmission push platform 706, an opening 706E is fixedly provided on the outer side of the push platform 706D, and the opening 706E is abutted against the outer extrusion support frame 704, an opening 706F is fixedly provided on the inner side of the push platform 706D, and the opening 706F is abutted against the inner extrusion support frame 705, a guide rod 706C is fixedly connected to the inner side of the bottom of the push platform 706D, and the guide rod 706C is slidably connected to the guide hole 701F, and a compression spring 707 is fixedly connected to the outer side of the bottom of the push platform 706D, and the compression spring 707 is fixedly connected to the outer side of the bottom of the push platform 706D. The other end is fixedly connected to the plug body 701, a pressure ring 706B is fixedly connected to the bottom of the guide rod 706C, a vertical tube 706G is fixedly connected to the bottom of the pressure ring 706B, a pull ring 706A is fixedly connected to the bottom of the vertical tube 706G, a compression spring 702 is arranged on the inner wall of the vertical tube 706G, the top of the compression spring 702 is fixedly connected to the pressure ring 706B, the bottom of the compression spring 702 is fixedly connected to the push ring 2 705A, a compression spring 2 708 is arranged on the outer wall of the vertical tube 706G, the top of the compression spring 708 is fixedly connected to the pressure ring 706B, and the bottom of the compression spring 708 is fixedly connected to the push ring 1 704A. When the side wall of the pipe mouth of the water meter 6 contacts and squeezes the transmission push platform 706, the transmission push platform 706 moves downward, the compression spring 1 707 is compressed, the compression ring 706B squeezes the compression spring 2 708 and the compression spring 3 702 downward, the compression spring 2 708 squeezes the push ring 1 704A downward, drives the outer extrusion support frame 704 to move downward, the compression spring 3 702 squeezes the push ring 2 705A downward, and drives the inner extrusion support frame 705 to move downward, completing the sealing operation of the water meter 6.

[0037] The utility model provides a sealing bearing plug 7, so that a small pressure can be applied to the water meter 6 to complete the sealing operation of the water meter 6 pipe mouth, and pressure is applied to the inner wall and the outer wall of the water meter 6 pipe mouth at the same time. Most of the inward and outward pressures can offset each other. Compared with the traditional equipment that applies pressure to the side wall of the water meter 6 pipe mouth, the utility model can better avoid damage to the water meter 6; by providing a sealing rubber sleeve 703, it can contact the inner wall and the outer wall of the water meter 6 pipe mouth at the same time. Compared with the traditional equipment that can only contact the side wall of the water meter 6 pipe mouth, the contact area is greatly increased, and the sealing effect of the water meter 6 is greatly improved.

Claims

1. A sealing detection device for water meter installation, characterized in that: The utility model comprises a mounting shell (1), wherein an observation operation port (101) is provided at the upper end of the mounting shell (1), a water storage tank (102) is provided at the lower end of the mounting shell (1), an electric push rod (2) is fixedly mounted on the top of the mounting shell (1), a push rod of the electric push rod (2) extends into the mounting shell (1), an air guide tube (3) is fixedly connected to the bottom of the push rod of the electric push rod (2), a pressure gauge (4) is fixedly connected to the side pipe opening of the air guide tube (3), a valve (5) is fixedly connected to the other end of the pressure gauge (4), a group of sealing bearing plugs (7) are fixedly connected to the bottom pipe opening of the air guide tube (3), a support rod (103) is fixedly provided at the bottom of the inner wall of the mounting shell (1), a spring (10) is fixedly connected to the top of the support rod (103), a slide rod (9) is fixedly connected to the other end of the spring (10), an inner wall of the slide rod (9) is slidably connected to the outer wall of the support rod (103), and another group of sealing bearing plugs (7) are fixedly connected to the top of the slide rod (9).

2. A sealing detection device for water meter installation according to claim 1, characterized in that: The sealing bearing plug (7) comprises a plug body (701), an expansion rod (701A) is provided at the central upper end of the plug body (701), a fixing rod (701C) is fixedly provided at the central lower end of the plug body (701), a gas transmission hole (701D) is fixedly provided at the center of the plug body (701), the gas transmission hole (701D) passes through the expansion rod (701A) and the fixing rod (701C), an expansion cylinder (701B) is provided at the outer upper end of the plug body (701), a guide hole three (701G) is fixedly provided at the inner side of the middle of the plug body (701), a guide hole one (701E) is fixedly provided at the outer side of the middle of the plug body (701), and a guide hole two (701F) is also fixedly provided at the middle of the plug body (701), and the guide hole two (701F) is located between the guide hole three (701G) and the guide hole one (701E).

3. A sealing detection device for water meter installation according to claim 2, characterized in that: The sealing bearing plug (7) further comprises an outer extrusion support frame (704) and an inner extrusion support frame (705); a sealing rubber sleeve (703) is provided between the outer extrusion support frame (704) and the inner extrusion support frame (705); a push ring 1 (704A) is fixedly provided at the bottom of the outer extrusion support frame (704); the outer extrusion support frame (704) cooperates with the inner wall of the expansion cylinder (701B); the outer extrusion support frame (704) abuts against the first guide hole (701E); a push ring 2 (705A) is fixedly provided at the bottom of the inner extrusion support frame (705); the inner extrusion support frame (705) cooperates with the outer wall of the expansion rod (701A); and the inner extrusion support frame (705) abuts against the third guide hole (701G).

4. A sealing detection device for water meter installation according to claim 3, characterized in that: An expansion piece (11) is fixedly provided at the top end of the inner extrusion support frame (705), a groove (1101) is provided at the inner rear portion of the expansion piece (11), and a concave platform (1102) is provided at the outer front portion of the expansion piece (11).

5. A sealing detection device for water meter installation according to claim 2, characterized in that: The sealing bearing plug (7) further comprises a transmission push platform (706), wherein a push platform (706D) is provided at the upper end of the transmission push platform (706), an opening (706E) is fixedly provided on the outer side of the push platform (706D), the opening (706E) is in contact with the outer extrusion support frame (704), an opening (706F) is fixedly provided on the inner side of the push platform (706D), the opening (706F) is in contact with the inner extrusion support frame (705), a guide rod (706C) is fixedly connected to the inner side of the bottom of the push platform (706D), the guide rod (706C) is slidably connected to the guide hole (701F), a compression spring (707) is fixedly connected to the outer side of the bottom of the push platform (706D), the compression spring (707) The other end is fixedly connected to the plug body (701); a pressure ring (706B) is fixedly connected to the bottom of the guide rod (706C); a vertical tube (706G) is fixedly connected to the bottom of the pressure ring (706B); a pull ring (706A) is fixedly connected to the bottom of the vertical tube (706G); a compression spring three (702) is provided on the inner wall of the vertical tube (706G); the top end of the compression spring three (702) is fixedly connected to the pressure ring (706B); the bottom end of the compression spring three (702) is fixedly connected to the push ring two (705A); a compression spring two (708) is provided on the outer wall of the vertical tube (706G); the top end of the compression spring two (708) is fixedly connected to the pressure ring (706B); and the bottom end of the compression spring two (708) is fixedly connected to the push ring one (704A).

6. A sealing detection device for water meter installation according to claim 1, characterized in that: A water level scale (8) is fixedly provided on the inner wall of the water storage tank (102).

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