A stainless steel welded vertical water meter case

Abstract

The utility model provides a stainless steel welded vertical water meter case, including a case body, an inner ring is arranged inside the case body, a valve body is connected to one side of the case body, a pipe plug is arranged at one end of the valve body away from the case body, a water inlet pipe and a water outlet pipe are respectively arranged on both sides of the pipe plug and the valve body, a water inlet hole connected to the inside of the valve body is arranged below the inner ring of the case body, and a water outlet hole connected to the inside of the valve body is arranged on one side above the inner ring, an adjusting chamber is connected to the outside of the through hole inside the valve body, a valve ball is arranged inside the adjusting chamber, a valve stem is connected to the top of the valve ball, a polytetrafluoroethylene gasket is arranged on the outside of the valve ball of the adjusting chamber, and a sealing ring is arranged on the side of the adjusting chamber away from the through hole.

Description

Technical Field

[0001] The utility model belongs to the technical field of water meter cases, and in particular relates to a stainless steel welded vertical water meter case. Background Art

[0002] A water meter is a device for measuring water flow. Traditional water meters are mostly made of cast iron or copper to obtain blanks, which are then CNC cut and surface treated to obtain the final product. After the movement is installed inside, it becomes a usable water meter. The accuracy of water meters is not high. Whether it is an iron or copper case, different degrees of material precipitation will occur during the use of the water meter, which will pollute the water source. The water meter industry has recommended the elimination of iron cases, and the market is gradually moving towards stainless steel cases.

[0003] At present, most mechanical meters on the market are casting products, and the materials are generally cast iron or copper. The stainless steel case is expensive and difficult to process. The inner ring, inlet and outlet pipe sections, etc. in the common stainless steel case are welded and fixed by general welding technology. In the welding process, most of them are separated by injection molding, and then welded. The overall welding workload is large, and it is easy to have undercuts, weld nodules, depressions and welding deformation, or surface pores and surface cracks, which make the water meter poorly formed and cause dripping and leakage. Utility Model Content

[0004] The technical problem to be solved by the utility model is that many problems occur during the welding process of the existing stainless steel water meter shell, resulting in poor forming of the water meter and the phenomenon of dripping and leaking.

[0005] In order to solve the above technical problems, the technical solution provided by the utility model is: a stainless steel welded vertical water meter case, including a case body, an inner ring is arranged inside the case body, a valve body is connected to one side of the case body, a pipe plug is arranged at one end of the valve body away from the case body, and an inlet pipe and an outlet pipe are respectively arranged on both sides of the pipe plug on the valve body, a water inlet hole connected to the interior of the valve body is arranged below the inner ring of the case body, and a water outlet hole connected to the interior of the valve body is arranged on the upper side of the inner ring, an adjusting chamber is connected to the outside of the through hole inside the valve body, a valve ball is arranged inside the adjusting chamber, a valve stem is connected to the top of the valve ball, a polytetrafluoroethylene gasket is arranged on the outside of the valve ball in the adjusting chamber, and a sealing ring is arranged on the side of the adjusting chamber away from the through hole.

[0006] As an improvement, the case shell is formed into an integral structure by multiple stretching of stainless steel plates. The interior of the case body is welded and fixed to the inner ring, and the inner ring is at the same height as the central axis of the valve body. A middle cover brace is welded to the outside of the top of the case body, and head fixing blocks are welded on both sides of the outside of the case body.

[0007] As an improvement, the valve body is a gold-cast structure as a whole, and the water inlet pipe and the water outlet pipe of the valve body located on the side away from the case body are located on the same axis, and the axis is arranged parallel to the axis of the case body.

[0008] As an improvement, the pipe plug is connected to one end of the valve body via a thread, and a sealing ring is provided between the pipe plug and the valve body.

[0009] As an improvement, the water inlet pipe and the valve body are an integrated structure, the water outlet pipe and the valve body are welded and fixed, and connecting sleeves are provided on the outer sides of the ends of the water inlet pipe and the water outlet pipe away from the valve body, wherein the water outlet pipe and the connecting sleeves are welded and fixed.

[0010] As an improvement, a first O-ring is provided between the polytetrafluoroethylene gasket, the regulating cavity and the sealing ring.

[0011] As an improvement, the valve body is provided with a shaft sleeve on the outer side of the valve stem, and a plurality of second O-rings are provided between the valve stem and the shaft sleeve.

[0012] As an improvement, one side of the sealing ring is connected to one side of the regulating chamber through a thread.

[0013] The advantages of the utility model compared with the prior art are:

[0014] The case of the vertical water meter is composed of an integrally formed shell, a stamped inner ring and a gold-cast integral valve body, which reduces the number of parts required to be welded during the installation process. At the same time, since the connection between the inner ring, the valve body, the water outlet pipe and the case body is basically annular, not only can the welding workload be reduced, but the annular welding method can also ensure the uniformity of the welding, thereby reducing the defects generated during the welding process and avoiding dripping and leakage of the water meter. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a structural diagram of a stainless steel welded vertical water meter case.

[0016] Figure 2 The utility model is a cross-sectional structural diagram of a stainless steel welded vertical water meter case.

[0017] As shown in the figure: 1. Case body; 2. Inner ring; 3. Valve body; 4. Pipe plug; 5. Water inlet pipe; 6. Water outlet pipe; 7. Water inlet hole; 8. Water outlet hole; 9. Adjustment chamber; 10. Valve ball; 11. Valve stem; 12. PTFE gasket; 13. Sealing ring; 14. Middle cover sleeve; 15. Head fixing block; 16. Sealing ring; 17. Connecting sleeve; 18. First O-ring; 19. Multiple second O-rings; 20. Bushing DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0020] Embodiment 1:

[0021] As the instruction manual Figure 1-2 As shown, a stainless steel welded vertical water meter case includes a case body 1, an inner ring 2 is arranged inside the case body 1, the case shell is formed into an integral structure by multiple stretching of a stainless steel plate, the inside of the case body 1 is welded and fixed to the inner ring 2, and the inner ring 2 is at the same height as the center axis of the valve body 3, a middle cover sleeve 14 is welded to the outside of the top of the case body 1, and a meter head fixing block 15 is welded to both sides of the outside of the case body 1.

[0022] In the utility model, a valve body 3 is connected to one side of the case body 1, and a pipe plug 4 is provided at one end of the valve body 3 away from the case body 1. The pipe plug 4 is connected to one end of the valve body 3 by threads, and a sealing ring 16 is provided between the pipe plug 4 and the valve body 3. Water inlet pipe 5 and water outlet pipe 6 are respectively provided on both sides of the pipe plug 4 on the valve body 3. The valve body 3 is a gold-cast structure as a whole. The water inlet pipe 5 and the water outlet pipe 6 on the side of the valve body 3 away from the case body 1 are located on the same axis, and the axis is arranged parallel to the axis of the case body 1. The water inlet pipe 5 and the valve body 3 are an integral structure, and the water outlet pipe 6 is welded and fixed to the valve body 3. Connecting sleeves 17 are provided on the outer sides of the ends of the water inlet pipe 5 and the water outlet pipe 6 away from the valve body 3, and the water outlet pipe 6 is welded and fixed to the connecting sleeve 17.

[0023] In the utility model, the case body 1 is provided with a water inlet hole 7 connected to the inside of the valve body 3 below the inner ring 2, and a water outlet hole 8 connected to the inside of the valve body 3 is provided on the upper side of the inner ring 2. The inside of the valve body 3 is connected to an adjusting chamber 9 located on the outside of the through hole, a valve ball 10 is provided inside the adjusting chamber 9, and a valve stem 11 is connected to the top of the valve ball 10. A polyfluoro gasket 12 is provided on the outside of the valve ball 10 in the adjusting chamber 9, and a first O-ring 18 is provided between the polyfluoro gasket 12, the adjusting chamber 9 and the sealing ring 13. A sealing ring 13 is provided on the side of the adjusting chamber 9 away from the through hole, and one side of the sealing ring 13 is connected to one side of the adjusting chamber 9 through a thread.

[0024] During the specific implementation of the utility model, the inner ring 2 is welded to the inside of the case body 1, and then the middle cover tooth sleeve 14 is welded and fixed to the outer side of the upper end of the case body 1, and the valve body 3 is welded and fixed to the water inlet hole 7 and the water outlet hole 8 on one side of the case body 1, and then the water outlet pipe 6 is welded and fixed to the valve body 3, and the connecting tooth sleeve 17 is welded and fixed to the end of the water outlet pipe 6 away from the valve body 3 to form a water outlet, and finally the meter head fixing block 15 is welded and fixed to the case body 1 to complete the external welding and fixing of the case of the vertical water meter;

[0025] Before the valve body 3 is welded, the internal thread that is threadedly connected to the sealing ring 13 on one side of the regulating chamber 9, the internal thread that connects the pipe valve and the valve body 3, and the connecting sleeve 17 on the water inlet pipe 5 are machined; and after the valve body 3 is welded, the first O-ring 18 is placed between the polytetrafluoroethylene gasket 12 and the water outlet 8 through the pipe valve, and the polytetrafluoroethylene gasket 12 is placed inside the regulating chamber 9, and then the ball valve is placed in the regulating chamber 9, and the valve stem 11 with multiple second O-rings 19 on the outside is fixedly connected to the top of the ball valve from the top of the valve body 3, and then the polytetrafluoroethylene gasket 12 is placed on the other side of the ball valve, and the first O-ring 18 is placed on the outside of the polytetrafluoroethylene gasket 12 on this side, and then the sealing ring 13 is connected and fixed to one side of the regulating chamber 9 through the thread, and finally the sealing ring 16 is put on the pipe valve, and the pipe valve is connected and sealed to one end of the valve body 3 through the thread, and the structural installation of the case body 1 can be completed.

[0026] The above describes the utility model and its implementation methods, which are not restrictive. The specific implementation method is only one of the implementation methods of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it, without departing from the purpose of the invention of the utility model, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the utility model.

Claims

1. A stainless steel welded vertical water meter case, comprising a case body, characterized in that: An inner ring is provided inside the case body, a valve body is connected to one side of the case body, a pipe plug is provided at one end of the valve body away from the case body, a water inlet pipe and a water outlet pipe are respectively provided on both sides of the pipe plug on the valve body, a water inlet hole connected to the inside of the valve body is provided below the inner ring of the case body, and a water outlet hole connected to the inside of the valve body is provided on the upper side of the inner ring, an adjusting chamber is connected to the outside of the through hole in the valve body, a valve ball is provided inside the adjusting chamber, a valve stem is connected to the top of the valve ball, a polytetrafluoroethylene gasket is provided on the outside of the valve ball in the adjusting chamber, and a sealing ring is provided on the side of the adjusting chamber away from the through hole.

2. The stainless steel welded vertical water meter case according to claim 1, characterized in that: The case shell is formed into an integral structure by multiple stretching of stainless steel plates. The interior of the case body is welded and fixed to the inner ring, and the inner ring is at the same height as the central axis of the valve body. A middle cover brace is welded to the outer side of the top of the case body, and head fixing blocks are welded on both sides of the exterior of the case body.

3. The stainless steel welded vertical water meter case according to claim 1, characterized in that: The valve body is a gold-cast structure as a whole. The water inlet pipe and the water outlet pipe of the valve body located on the side away from the case body are located on the same axis, and the axis is arranged parallel to the axis of the case body.

4. The stainless steel welded vertical water meter case according to claim 1, characterized in that: The pipe plug is connected to one end of the valve body through threads, and a sealing ring is arranged between the pipe plug and the valve body.

5. The stainless steel welded vertical water meter case according to claim 1, characterized in that: The water inlet pipe and the valve body are an integrated structure, the water outlet pipe and the valve body are welded and fixed, and connecting sleeves are provided on the outer sides of the ends of the water inlet pipe and the water outlet pipe away from the valve body, wherein the water outlet pipe and the connecting sleeves are welded and fixed.

6. The stainless steel welded vertical water meter case according to claim 1, characterized in that: A first O-ring is arranged between the polytetrafluoroethylene gasket, the regulating cavity and the sealing ring.

7. The stainless steel welded vertical water meter case according to claim 1, characterized in that: The valve body is provided with a shaft sleeve on the outer side of the valve stem, and a plurality of second O-rings are provided between the valve stem and the shaft sleeve.

8. The stainless steel welded vertical water meter case according to claim 1, characterized in that: One side of the sealing ring is matched and connected with one side of the regulating cavity through a thread.

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