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CN-224214735-U - Simple sealing gate valve

CN224214735UCN 224214735 UCN224214735 UCN 224214735UCN-224214735-U

Abstract

The utility model discloses a simple sealing gate valve, which comprises a valve body, a gate plate and a valve rod with a driving structure, wherein the gate plate comprises two relatively movable plate bodies, a guide plate is arranged on the inner side of the valve body, guide blocks sliding along the guide plate are arranged on the plate bodies corresponding to the guide plate, guide shafts for the plate bodies are arranged between the plate bodies, and the simple sealing gate valve is provided with a double-sided sealing plate body structure and a sealing seat to realize double sealing and double sealing effects.

Inventors

  • YU MEI

Assignees

  • 浙江高电阀门有限公司

Dates

Publication Date
20260508
Application Date
20250530

Claims (5)

  1. 1. A simple sealing gate valve comprises a valve body (1), a gate plate (2) and a valve rod (4) with a driving structure (3), and is characterized in that the gate plate (2) comprises two relatively movable plate bodies (21), guide plates (11) are arranged on the inner sides of the valve body (1), guide blocks (22) sliding along the guide plates (11) are arranged on the corresponding guide plates (11) of the plate bodies (21), and guide shafts (26) used for providing limit for the relatively approaching or separating movement of the two plate bodies (21) are further arranged between the plate bodies (21).
  2. 2. The simple sealing gate valve of claim 1, wherein the valve rod (4) is rotatably arranged relative to the valve body (1), a spiral groove (41) is further formed in the outer side surface of the valve rod (4), a mounting groove (24) and a sliding block (23) positioned in the mounting groove (24) are formed in the upper end of the gate plate (2), and the valve rod (4) and the inner hole of the sliding block (23) are in threaded fit to drive the sliding block (23) to drive the gate plate (2) to lift.
  3. 3. The simple sealing gate valve of claim 2, wherein the axial height of the mounting groove (24) is larger than the thickness of the sliding block (23), a pull arm (25) is arranged between the sliding block (23) and the plate body (21), one end of the pull arm (25) is hinged to the sliding block (23), and the other end of the pull arm is arranged in a waist-shaped groove (27) obliquely arranged on the plate body (21) in a sliding manner.
  4. 4. A simple sealing gate valve as claimed in claim 1, wherein the guide plate (11) is provided with an inclined sliding groove (12) on the surface which is in opposite contact with the guide block (22), the sliding groove (12) is provided with a radian groove bottom, and the guide block (22) is provided with a hemispherical sliding surface (29) matched with the hemispherical sliding surface.
  5. 5. The simple sealing gate valve of claim 1, wherein the valve body (1) is provided with a sealing seat (5) with a sealing ring (51), and the gate plate (2) is provided with a sealing plate (52) matched with the sealing ring (51).

Description

Simple sealing gate valve Technical Field The utility model relates to the technical field of gate valves, in particular to a simple sealing gate valve. Background Gate valves are used as key components in fluid control systems, and the gate valves realize full-opening or full-closing control of fluid through vertically moving gate plates, and although the gate valves cannot be used for flow regulation, the gate valves adopt a wedge-shaped structure to drive a rapid radial cutting medium passage stroke seal through a valve rod. The typical structure comprises a valve body, a valve rod, a flashboard and an actuating mechanism, wherein the linkage mode of the valve rod and the flashboard is divided into a light rod (the lifting of the valve rod is visible) and a dark rod. In order to obtain a better sealing effect, a flashboard in the prior art is generally designed on a sealing inclined angle of a valve body and the flashboard through design, so that when the flashboard is lowered and cut off, extrusion sealing force of an inclined plane is formed through downward thrust, one of the structure needs to be precisely designed on the matching of a sealing surface, sealing materials need to be carefully designed, the problem of aging sealing failure is solved, the two seals completely depend on middle pressure given by a valve rod, and the flashboard is easy to deform due to the fact that the two opposite valve rods are stressed under the medium pressure. Disclosure of utility model In view of the prior art, the utility model aims to provide a sealing gate valve structure, which improves sealing effect through the relative movement of a double sealing plate body and a valve body guiding driving close sealing seat. In order to achieve the purpose, the simple sealing gate valve comprises a valve body, a gate plate and a valve rod with a driving structure, wherein the gate plate comprises two relatively movable plate bodies, guide plates are arranged on the inner sides of the valve body, guide blocks sliding along the guide plates are arranged on the corresponding guide plates of the plate bodies, and guide shafts for the plate bodies are further arranged between the plate bodies. As a further setting of above-mentioned scheme, the valve rod rotates the setting relative valve body, and the valve rod lateral surface still is equipped with the helicla flute, the flashboard upper end is equipped with the mounting groove and is located the slider of mounting groove, valve rod and slider hole screw thread cooperation drive and slider drive flashboard lift. As a further arrangement of the scheme, the axial height of the mounting groove is larger than the thickness of the sliding block, a pull arm is arranged between the sliding block and the plate body, one end of the pull arm is hinged to the sliding block, and the other end of the pull arm is arranged in the waist-shaped groove in a sliding mode. As a further arrangement of the scheme, the surface of the guide plate, which is in opposite contact with the guide block, is provided with an inclined sliding groove, the sliding groove is provided with a radian groove bottom, and the guide block is provided with a hemispherical sliding surface matched with the sliding groove. As a further arrangement of the scheme, the valve body is provided with a sealing seat with a sealing ring, and the flashboard is provided with a sealing plate matched with the sealing ring. The simple sealing gate valve has the beneficial effects that the double-sided sealing and double-sealing effects are realized by arranging the double-sided sealing plate body structure to be matched with the sealing seat, and the improved relatively movable plate body structure is arranged, so that the gate valve can be driven by pressing down the excessive gate plate during sealing, and the two plates are driven by the inclined guide plate to be relatively far away from the abutting sealing seat, so that the sealing of the gate valve is enhanced, and a stronger cutting sealing effect is obtained during use. Drawings Fig. 1 is a schematic view of the seal gate valve of the present utility model. Fig. 2 is a schematic view of the internal structure of the gate valve according to the present embodiment. Fig. 3 is a schematic view of the interior of the valve body of the present embodiment. Fig. 4 is a schematic diagram showing the cooperation of the slider and the valve stem in the present embodiment. Fig. 5 is a schematic diagram showing another state of the shutter, the slider and the valve stem at a in fig. 4 according to the present embodiment. Reference numeral 1, valve body; 11, guide plates, 12, sliding grooves, 2, flashboard, 21, plate body, 22, guide blocks, 23, sliding blocks, 24, installation grooves, 25, pull arms, 26, guide shafts, 27, waist-shaped grooves, 29, hemispherical sliding surfaces, 3, driving structures, 4, valve rods, 41, spiral grooves, 5, sealing seats, 51, sealing rings, 52 and sealing plat