A protective signal gate valve

Abstract

The utility model proposes a protective signal gate valve with a simple structure, a protective function and the ability to increase the service life of the valve, comprising a valve body, a valve cover arranged on the valve body, a valve stem for opening and closing the valve and a protective cover arranged on the valve body, the valve stem passing through the valve cover, a signal conversion device arranged on the valve cover, the signal conversion device and the valve stem are driven by gears, a connecting disk is arranged at the connection between the valve body and the valve cover, a placement groove is provided on the connecting disk for matching the protective cover, the protective cover is arranged in the placement groove, and an anti-detachment device for preventing the protective cover from detaching from the placement groove is arranged between the connecting disk and the protective cover.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a protective signal gate valve. Background Art

[0002] The gate valve is an on-off valve, and its opening and closing parts are gates. The movement direction of the gate is perpendicular to the direction of the fluid, and the purpose of opening and closing is achieved through the vertical movement of the gate. The signal gate valve is based on the gate valve and adds a signal conversion device. The opening and closing status of the gate valve can be transmitted through the signal conversion device, so as to facilitate real-time tracking of the working status of the gate valve.

[0003] When the existing signal gate valve is in use, since the signal conversion device and gear are installed outside the valve cover, the valve stem, the conversion device and the gear are easily damaged due to wind, sun and rain during long-term use, which is not conducive to the long-term use of the signal gate valve.

[0004] In order to solve this problem, the utility model is produced. Utility Model Content

[0005] Therefore, in view of the above problems, the utility model proposes a protective signal gate valve which has a simple structure, has a protective function and can increase the service life of the valve.

[0006] In order to solve the above technical problems, the solution adopted by the utility model is: a protective signal gate valve, including a valve body, a valve cover arranged on the valve body, a valve stem for opening and closing the valve, and a protective cover are arranged on the valve body, the valve stem passes through the valve cover, a signal conversion device is arranged on the valve cover, the signal conversion device and the valve stem are transmitted by gears, the valve body is provided with a connecting disk at the connection between the valve body and the valve cover, a placement groove is provided on the connecting disk to match the protective cover, the protective cover is arranged in the placement groove, and an anti-detachment device for preventing the protective cover from detaching from the placement groove is arranged between the connecting disk and the protective cover.

[0007] Further improvements are: the anti-slip device includes an anti-slip rod, the connecting disk is provided with a first channel, a fixed box is provided in the first channel, the anti-slip rod is passed through the fixed box, the protective cover is located at the first channel position and has an anti-slip channel, the connecting disk is provided with a sliding device for driving the anti-slip rod to slide into the fixed box, and the connecting disk is also provided with a reset device for driving the anti-slip rod to slide out of the anti-slip channel.

[0008] A further improvement is that the sliding device includes a rotating disk, which is rotatably arranged on the outer end of the connecting disk, and the rotating disk is located at the first channel position and has an inclined surface with a gradually increasing diameter, and the first channel is connected to the inclined surface so that the anti-slip rod resists the inclined surface.

[0009] A further improvement is that the reset device includes a sliding block, the sliding block is sleeved on an anti-slip rod and is located in a fixed box, the anti-slip rod is sleeved with a spring, one end of the spring is connected to the sliding block, and the other end of the spring is connected to the inner wall of the fixed box.

[0010] A further improvement is that a hand wheel is provided on the valve stem.

[0011] By adopting the above technical solution, the beneficial effects of the utility model are:

[0012] The structure is simple, has a protective function, and can improve the valve. The valve stem, the signal conversion device, and the gear are covered by the protective cover, so that the valve stem, the signal conversion device, and the gear will not be polluted by wind, sun, rain, or dust and rust, thereby protecting the valve stem, the signal conversion device, and the gear and improving their service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the cutaway structure of a protective signal gate valve according to an embodiment of the utility model.

[0014] Figure 2 It is a schematic diagram of the enlarged structure of A in the embodiment of the present utility model.

[0015] Figure 3 It is a schematic diagram of the cutaway structure of the anti-slip device of the utility model embodiment. DETAILED DESCRIPTION

[0016] The utility model is now further described in conjunction with the accompanying drawings and specific embodiments.

[0017] refer to Figure 1-3 The embodiment of the utility model discloses: a protective signal gate valve, comprising a valve body 1, a valve cover 2 arranged on the valve body 1, a valve stem 3 and a protective cover 5 for opening and closing the valve are arranged on the valve body 1, the valve stem 3 passes through the valve cover 2, a signal conversion device is arranged on the valve cover 2, the signal conversion device and the valve stem 3 are driven by gears, a connecting disk 6 is arranged at the connection between the valve body 1 and the valve cover 2, a placement groove is provided on the connecting disk 6 to match the protective cover 5, the protective cover 5 is arranged in the placement groove, and an anti-dropping device for preventing the protective cover 5 from escaping from the placement groove is arranged between the connecting disk 6 and the protective cover 5.

[0018] Specifically, the anti-slip device includes an anti-slip rod 7, a rotating disk 12, and a sliding block 10. The connecting disk 6 is provided with a first channel 9, a fixed box 8 is provided in the first channel 9, the anti-slip rod 7 is penetrated by the fixed box 8, the protective cover 5 is located at the first channel 9 and has an anti-slip channel, the rotating disk 12 is rotatably arranged on the outer end of the connecting disk 6, the rotating disk 12 is located at the first channel 9 and has an inclined surface 13 with a gradually increasing diameter, the first channel 9 is connected to the inclined surface 13 so that the anti-slip rod 7 resists the inclined surface 13, the sliding block 10 is sleeved on the anti-slip rod 7 and is located in the fixed box 8, the anti-slip rod 7 is sleeved with a spring 11, one end of the spring 11 is connected to the sliding block 10, and the other end of the spring 11 is connected to the inner wall of the fixed box 8. When in use, after the valve is opened or closed, the protective cover 5 is inserted into the placement groove, thereby covering the valve stem 3, the signal conversion device and the gear, and then the rotating disk 12 is rotated along the direction B, at which time the inclined surface 13 resists the anti-slip rod 7, and the diameter of the inclined surface 13 gradually decreases, thereby pushing the anti-slip rod 7 to slide into the anti-slip channel to engage, thereby preventing the protective cover 5 from escaping from the anti-slip groove, and at this time the spring 11 is stretched. When the protective cover 5 is to be opened, the rotating disk 12 is reversed, at which time the diameter of the inclined surface 13 gradually increases, the spring 11 is reset, and the anti-slip rod 7 resists the inclined surface 13 and resets, thereby making the anti-slip rod 7 slide out of the anti-slip channel, so that the protective cover 5 can be taken out. The valve stem 3, the signal conversion device and the gear are covered by the protective cover 5, so that the valve stem 3, the signal conversion device and the gear will not be polluted by wind, sun, rain or dust, and rust, thereby protecting the valve stem 3, the signal conversion device and the gear and improving their service life.

[0019] In order to facilitate the rotation of the valve stem 3 , a hand wheel is provided on the valve stem 3 .

[0020] The basic principles, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which shall fall within the scope of the utility model to be protected. The scope of protection of the utility model shall be defined by the attached claims and their equivalents.

Claims

1. A protective signal gate valve, comprising a valve body, a valve cover arranged on the valve body, a valve stem for opening and closing the valve is arranged on the valve body, the valve stem passes through the valve cover, a signal conversion device is arranged on the valve cover, the signal conversion device and the valve stem are driven by gears, and the characteristics are: It also includes a protective cover, wherein the valve body is provided with a connecting plate at the connection between the valve body and the valve cover, a placement groove is provided on the connecting plate to match the protective cover, the protective cover is arranged in the placement groove, and an anti-dropping device is provided between the connecting plate and the protective cover to prevent the protective cover from escaping from the placement groove.

2. A protective signal gate valve according to claim 1, characterized in that: The anti-slip device includes an anti-slip rod, a first channel is opened on the connecting disk, a fixed box is arranged in the first channel, the anti-slip rod is passed through the fixed box, the protective cover is located at the first channel position and has an anti-slip channel opened, a sliding device for driving the anti-slip rod to slide into the fixed box is provided on the connecting disk, and a reset device for driving the anti-slip rod to slide out of the anti-slip channel is also provided on the connecting disk.

3. A protective signal gate valve according to claim 2, characterized in that: The sliding device includes a rotating disk, which is rotatably arranged on the outer end of the connecting disk. The rotating disk is located at the first channel position and has an inclined surface with a gradually increasing diameter. The first channel is connected to the inclined surface so that the anti-slip rod resists the inclined surface.

4. A protective signal gate valve according to claim 2, characterized in that: The reset device comprises a sliding block, the sliding block is sleeved on the anti-slip rod and is located in the fixed box, the anti-slip rod is sleeved with a spring, one end of the spring is connected to the sliding block, and the other end of the spring is connected to the inner wall of the fixed box.

5. The protective signal gate valve according to claim 1, characterized in that: A hand wheel is arranged on the valve stem.

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