Hydraulic transmission deck surface valve

Abstract

The hydraulic transmission deck surface valve comprises a valve body, the bottom of the valve body is installed in a sealed mode, a valve disc is arranged on the inner side of the valve body in an attached and sealed mode, the top of the valve disc is connected to the bottom of a vertical valve rod, and the top of the vertical valve rod is inserted into a hydraulic cylinder in a sealed mode; the top of the vertical valve rod protrudes outwards to form a cylinder attached to the inner wall of the hydraulic cylinder in a sealed mode, the cylinder divides the interior of the hydraulic cylinder into an upper cavity and a lower cavity, and an upper oil inlet and outlet and a lower oil inlet and outlet are formed in the top of one side of the upper cavity and the bottom of one side of the lower cavity respectively. Opening and closing of the valve can be remotely controlled without manpower.

Description

Technical Field

[0001] The present invention relates to a valve structure, and more particularly to a hydraulically driven deck surface valve. Background Art

[0002] Ordinary deck surface valves can only be opened and closed by manually operating the handwheel on site to drive the valve stem and valve disc to rise and fall. The valve cannot be opened and closed by remote control. When the valve is installed in an inconvenient position, it is difficult to operate. Utility Model Content

[0003] The utility model aims to provide a hydraulic transmission deck surface valve, which can realize the opening and closing of the valve by remote control without manpower.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions.

[0005] The embodiment of the present application discloses a hydraulic transmission deck surface valve, including a valve body, the bottom of the valve body is sealed, the inner side of the valve body is sealed and provided with a valve disc, the top of the valve disc is connected to the bottom of a vertical valve stem, the top of the vertical valve stem is sealed and inserted into a liquid cylinder, the top of the vertical valve stem protrudes outward to form a column that is sealed and fitted to the inner wall of the liquid cylinder, the column divides the interior of the liquid cylinder into an upper cavity and a lower cavity, the top of one side of the upper cavity and the bottom of one side of the lower cavity are respectively formed with an upper oil inlet and a lower oil inlet,

[0006] When the upper oil inlet and outlet is filled with oil, the column moves downward, driving the vertical valve stem to move downward, and then the valve disc fits against the valve body, and the valve is closed;

[0007] When oil is added to the lower oil inlet and outlet, the column moves upward, driving the vertical valve stem to move upward, and then the valve disc moves away from the valve body, and the valve opens.

[0008] Preferably, in the above-mentioned hydraulic transmission deck surface valve, a sealing gasket is provided between the column and the inner wall of the cylinder.

[0009] Preferably, in the above-mentioned hydraulic transmission deck surface valve, a cylinder screw plug is provided inside the cylinder, and the vertical valve stem seal passes through the cylinder screw plug.

[0010] Preferably, in the above-mentioned hydraulic transmission deck surface valve, the hydraulic cylinder and the valve body are connected by bolts.

[0011] Preferably, in the above-mentioned hydraulic transmission deck surface valve, the bottom of the valve body is connected by bolts.

[0012] Preferably, in the above-mentioned hydraulic transmission deck surface valve, the contact surface between the valve disc and the valve body is an inner inclined circular ring, and a sealing ring is arranged on the inclined surface.

[0013] Preferably, in the above-mentioned hydraulic transmission deck surface valve, the top of the valve disc is connected to the vertical valve stem through the valve stem head and the clamping nut in sequence.

[0014] Compared with the prior art, the advantage of this technical solution is that the hydraulic transmission deck surface valve has an additional hydraulic transmission device compared to the traditional deck surface valve. The hydraulic transmission device controls the start, stop, movement direction, speed, etc. of the hydraulic actuator by controlling the pressure, flow and flow direction of the oil, thereby meeting the equipment's requirements for various tasks. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 Shown is a schematic diagram of a hydraulically driven deck surface valve in an embodiment of the utility model. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to describe the technical solutions in the embodiments of the utility model in detail. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0018] Combination Figure 1 As shown, the hydraulic transmission deck surface valve 100 includes a valve body 101, the bottom of the valve body 101 is sealed, the inner side of the valve body 101 is sealed and provided with a valve disc 102, the top of the valve disc 102 is connected to the bottom of a vertical valve stem 103, the top of the vertical valve stem 103 is sealed and inserted into a liquid cylinder 104, the top of the vertical valve stem 103 protrudes outward to form a column 105 that is sealed and fitted to the inner wall of the liquid cylinder 104, the column 105 divides the interior of the liquid cylinder 104 into an upper cavity 106 and a lower cavity 107, and an upper oil inlet and outlet 108 and a lower oil inlet and outlet 109 are formed at the top of one side of the upper cavity 106 and the bottom of one side of the lower cavity 107, respectively.

[0019] When oil is added to the upper oil inlet and outlet 108, the column 105 moves downward, driving the vertical valve stem 103 to move downward, and then the valve disc 102 fits against the valve body 101, and the valve is closed;

[0020] When oil is added to the lower oil inlet and outlet 109, the column 105 moves upward, driving the vertical valve stem 103 to move upward, and then the valve disc 102 moves away from the valve body 101, and the valve opens.

[0021] In this embodiment, compared with the traditional deck surface valve, a hydraulic transmission device is installed. The hydraulic transmission device transmits power through a liquid medium. The incompressibility of the liquid makes the transmission process smoother, easier to realize automatic working cycle and automatic overload protection, and realizes remote control.

[0022] Furthermore, a sealing gasket 110 is provided between the column 105 and the inner wall of the liquid cylinder 104. The contact surface between the valve disc 102 and the valve body 101 is an inner inclined circular ring, and a sealing ring 114 is provided on the inclined surface.

[0023] In this embodiment, the sealing performance is improved.

[0024] Furthermore, a cylinder plug 111 is provided inside the cylinder 104, and the vertical valve stem 103 seals through the cylinder plug 111. The cylinder 104 is connected to the valve body 101 by a bolt 112. The bottom of the valve body 101 is connected by a bolt 113. The top of the valve disc 102 is connected to the vertical valve stem 103 by a valve stem head 115 and a clamping nut 116 in sequence.

[0025] In this embodiment, it is used to improve the stability of the entire structure and facilitate installation.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0027] The above is only a specific implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A hydraulically driven deck surface valve, characterized in that: The utility model comprises a valve body, the bottom of the valve body is sealed and installed, the inner side of the valve body is sealed and provided with a valve disc, the top of the valve disc is connected to the bottom of the vertical valve stem, the top of the vertical valve stem is sealed and inserted into the liquid cylinder, the top of the vertical valve stem protrudes outward to form a column body which is sealed and fitted to the inner wall of the liquid cylinder, the column body divides the interior of the liquid cylinder into an upper cavity and a lower cavity, the top of one side of the upper cavity and the bottom of one side of the lower cavity are respectively formed with an upper oil inlet and a lower oil inlet and a lower oil inlet, When the upper oil inlet and outlet is filled with oil, the column moves downward, driving the vertical valve stem to move downward, and then the valve disc fits against the valve body, and the valve is closed; When the lower oil inlet and outlet is filled with oil, the column moves upward, driving the vertical valve stem to move upward, and then the valve disc moves away from the valve body, and the valve opens. A sealing gasket is arranged between the column and the inner wall of the liquid cylinder, a liquid cylinder plug is arranged inside the liquid cylinder, the vertical valve stem seal passes through the liquid cylinder plug, the liquid cylinder and the valve body are connected by bolts, the bottom of the valve body is connected by bolts, the contact surface between the valve disc and the valve body is an inner inclined ring, a sealing ring is arranged on the inclined surface, and the top of the valve disc is connected to the vertical valve stem through a valve stem head and a clamping nut in sequence.

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