Novel electric heat tracing eye washer and low-temperature welding shower hand-pull valve thereof

Abstract

The novel electric heat tracing eye washer comprises an inner valve seat and a valve rod, the valve rod is connected with a valve ball arranged in a channel through a valve body neck arranged on the inner valve seat, the center height of the valve body neck is larger than 68 mm, the diameter of the valve body neck is larger than 32.5 mm, and the diameter of the valve body neck is larger than 32.5 mm. The valve rod is arranged in the neck of the valve body, a heat preservation layer is arranged on the neck of the valve body, an inlet pipe is arranged at one end of the internal valve seat, an outlet pipe is arranged at the other end of the internal valve seat, a sealing assembly surrounding the valve ball is arranged in the inlet pipe and the outlet pipe, and the distance between the end of the inlet pipe and the center of the valve ball is larger than 134.5. And the length from the end part of the outlet pipe to the center of the valve ball is greater than 122.5 mm. According to the novel structure, the neck of the valve body can also be taken as a heat preservation measure, the spraying hand-pulling valve of the electric heat tracing eye washing device can be effectively prevented from being frozen and deformed by low temperature, the sealing ring of the inner valve seat can be prevented from being heated and deformed during welding, and the service life of the spraying hand-pulling valve and the service life of the eye washing device are prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of eyewashers, in particular to a new type of electric tracing eyewasher and its low-temperature welding flushing hand valve. Background Art

[0002] The existing electric tracing eyewashers usually use welded ball valves as flushing hand valves, such as DN25 welded ball valves or female threaded ball valves. However, due to the structural design space limitation of the above ball valves, no heat preservation components are designed. In winter, the hand valves of the electric tracing eyewashers are easily frozen and damaged, resulting in the inability to use the electric tracing eyewashers properly. Moreover, the designed total length of the existing welded ball valves on the market is relatively short, and it is easily affected by the conduction of welding high temperature during welding with the pipeline, resulting in the deformation or leakage of the internal valve seat sealing ring, and the service life is not long. Summary of the Utility Model

[0003] In view of the above problems, our company has developed a new type of electric tracing eyewasher and its low-temperature welding flushing hand valve.

[0004] In order to solve the above technical problems, the utility model provides a low-temperature welding flushing hand valve for a new type of electric tracing eyewasher, which includes an internal valve seat and a valve stem. The valve stem is connected to a valve ball placed inside the channel through a valve body neck provided by the internal valve seat. The central height of the valve body neck is greater than 68 mm, the diameter of the valve body neck is greater than 32.5 mm, the valve stem is arranged inside the valve body neck, a heat preservation layer is arranged on the valve body neck, an inlet pipe is arranged at one end of the internal valve seat and an outlet pipe is arranged at the other end. Sealing components surrounding the valve ball are arranged inside the inlet pipe and the outlet pipe. The length from the end of the inlet pipe to the center of the valve ball is not less than 134.5 mm, and the length from the end of the outlet pipe to the center of the valve ball is not less than 122.5 mm.

[0005] Preferably, the end of the valve stem is connected to a handle, and a multi-stage adjustable pull rod mounting hole is arranged at the end of the handle.

[0006] The utility model also provides a new type of electric tracing eyewasher, which includes an eyewasher body, and the flushing hand valve of the eyewasher adopts the above-mentioned low-temperature welding flushing hand valve for a new type of electric tracing eyewasher.

[0007] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0008] Through the re-design of the structure, the flushing hand valve of the present application can withstand low temperatures down to -40 degrees Celsius. The new structure enables heat preservation measures to be taken on the valve body neck, which can effectively prevent the flushing hand valve of the electric tracing eyewasher from being deformed by low temperatures, and can avoid the heat deformation of the internal valve seat sealing ring during welding, thereby improving the service life of the flushing hand valve and the eyewasher. Brief Description of the Drawings

[0009] To more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for description in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0010] Figure 1 It is the front view of the low-temperature welded flushing hand valve of the new electric tracing eyewash of this embodiment;

[0011] Figure 2 It is the top view of the low-temperature welded flushing hand valve of the new electric tracing eyewash of this embodiment;

[0012] Figure 3 It is the three-dimensional view of the low-temperature welded flushing hand valve of the new electric tracing eyewash of this embodiment;

[0013] Among them, 1. Inner valve seat, 2. Valve stem, 3. Valve body neck, 4. Inlet pipe, 5. Outlet pipe, 6. Handle. Specific embodiments

[0014] The following will further describe the specific embodiments of the present utility model in conjunction with the drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solutions of the present utility model and cannot be used to limit the protection scope of the present utility model.

[0015] Embodiment 1

[0016] As shown in Figure 1 、 2 and 3, a new type of low-temperature welded flushing hand valve for an electric tracing eyewash includes an inner valve seat 1 and a valve stem 2. The valve stem 2 is connected to a valve ball placed inside the channel through a valve body neck 3 provided by the inner valve seat 1. The central height of the valve body neck 3 is 68 mm, the diameter of the valve body neck 3 is 32.5 mm, the valve stem 2 is arranged inside the valve body neck 3, and a heat preservation layer is arranged on the valve body neck 3. The new structure of this embodiment enables heat preservation measures to be taken on the valve body neck 3, which can effectively prevent the flushing hand valve of the electric tracing eyewash from being deformed by low temperature, so that the flushing hand valve of this application can withstand a low temperature of minus 40 degrees Celsius and can be used normally.

[0017] One end of the inner valve seat 1 is provided with an inlet pipe 4 and the other end is provided with an outlet pipe 5. Sealing components surrounding the valve ball are arranged inside the inlet pipe 4 and the outlet pipe 5. The length from the end of the inlet pipe 4 to the center of the valve ball is 134.5 mm, and the length from the end of the outlet pipe 5 to the center of the valve ball is 122.5 mm, avoiding the heat deformation of the inner valve seat sealing ring during welding and improving the service life of the flushing hand valve and the eyewash.

[0018] The end of the valve stem 2 is connected to the handle 6, and a three-stage adjustable pull rod mounting hole 6 is provided at the end of the handle 6 for adjusting the mounting force arm of the flushing pull rod and adaptively adjusting the pull rod tension.

[0019] Embodiment 2

[0020] This embodiment provides a new type of electric tracing eyewash, including an eyewash body. The flushing hand-operated valve of the eyewash adopts the new type of electric tracing eyewash low-temperature welding flushing hand-operated valve as described above.

[0021] It should be noted here that the description of the above embodiments is only used to help understand the present invention, but does not constitute a limitation to the present invention. Those skilled in the relevant technical fields can also make various changes, modifications, substitutions, integrations and variations without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also belong to the scope of the present invention and should be defined by each claim.

Claims

1. A new type of electric tracing eyewash low-temperature welding flushing hand valve, comprising an internal valve seat and a valve rod. The valve rod is connected to a valve ball placed inside a channel through a valve body neck provided on the internal valve seat, and is characterized in that: The central height of the valve body neck is greater than 68 mm, the diameter of the valve body neck is greater than 32.5 mm, the valve stem is arranged inside the valve body neck, a heat preservation layer is arranged on the valve body neck, one end of the internal valve seat is provided with an inlet pipe and the other end is provided with an outlet pipe, a sealing assembly surrounding the valve ball is arranged in the inlet pipe and the outlet pipe, the length from the end of the inlet pipe to the center of the valve ball is not less than 134.5 mm, and the length from the end of the outlet pipe to the center of the valve ball is not less than 122.5 mm.

2. The low-temperature welded flushing hand valve of the new electric tracing eyewash according to claim 1, wherein: The end of the valve stem is connected to a handle, and a multi-stage adjustable pull rod mounting hole is arranged at the end of the handle.

3. A new type of electric tracing eyewash, comprising an eyewash body, characterized in that: The flushing hand valve of the eyewash uses the novel electric tracing eyewash low-temperature welding flushing hand valve according to any one of claims 1 to 2.

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