Smoothly closed gate valve
阅读说明：本技术 一种闭合顺畅的闸阀 (Smoothly closed gate valve ) 是由 夏微微 包碎潘 于 2020-06-09 设计创作，主要内容包括：本发明涉及一种闭合顺畅的闸阀,所述阀板组件包括：定位机构,所述定位机构包括一体成型的定位板和连接杆；左密封板和右密封板,所述左密封板和右密封板旋转连接在定位板的两侧；上弹簧和下弹簧,所述上弹簧的两端连接在左密封板和右密封板上方,所述下弹簧的两端连接在左密封板和右密封板下方,且上弹簧弹力向外的弹力大于下弹簧的弹力。通过设置具有弹性的阀板组件,在闭合的时候,阀板组件的左密封板和右密封板在弹力的作用下向内收缩,从而使得阀板组件能够轻松的进入阀座完成阀门的闭合,有效提高闸阀闭合的顺畅性,避免出现卡滞问题。(The invention relates to a gate valve capable of being closed smoothly, which comprises a valve plate assembly and a valve seat, wherein the valve plate assembly comprises: the positioning mechanism comprises a positioning plate and a connecting rod which are integrally formed; the left sealing plate and the right sealing plate are rotatably connected to two sides of the positioning plate; go up spring and lower spring, the both ends of going up the spring are connected in left sealing plate and right sealing plate top, the both ends of lower spring are connected in left sealing plate and right sealing plate below, and go up the outside elasticity of spring force and be greater than the elasticity of lower spring. Have elastic valve plate subassembly through the setting, in the closure, the left sealing plate and the right sealing plate of valve plate subassembly are inside shrink under the effect of elasticity to make the entering disk seat that the valve plate subassembly can be relaxed accomplish the closure of valve, effectively improve the closed smooth and easy nature of gate valve, avoid appearing the jamming problem.)
1. The utility model provides a closed smooth and easy gate valve, includes the valve body, be equipped with top open-ended valve pocket in the valve body, the opening part fixed mounting of valve pocket top has the valve gap, and the both sides of valve body are equipped with water inlet and the delivery port that communicates to the valve pocket, water inlet and the coaxial setting of delivery port, be equipped with drive assembly on the valve gap, the last valve plate subassembly that is used for sealed water inlet and delivery port that is connected with of drive assembly, its characterized in that the valve plate subassembly includes:
the positioning mechanism comprises a positioning plate and a connecting rod which are integrally formed;
the left sealing plate and the right sealing plate are rotatably connected to two sides of the positioning plate;
go up spring and lower spring, the both ends of going up the spring are connected in left sealing plate and right sealing plate top, the both ends of lower spring are connected in left sealing plate and right sealing plate below, and go up the outside elasticity of spring force and be greater than the elasticity of lower spring.
2. The smoothly closed gate valve of claim 1, wherein: the driving assembly comprises a screw rod and a handle, one end of the screw rod penetrates through the valve cover to extend into the valve cavity, and the other end of the screw rod is arranged outside the valve body and fixedly connected with the handle.
3. The gate valve of claim 2, wherein: and a filler is arranged between the screw rod and the valve cover.
4. A gate valve according to claim 2 or 3, wherein: the upper end of connecting rod has the connecting block, is equipped with the spread groove on the connecting block shown, the lead screw passes through the bearing and is connected with the connecting block.
5. The smoothly closed gate valve of claim 1, wherein: the water inlet and the water outlet form a valve plate cavity for pressing the valve plate assembly into, and the valve plate cavity is of a square or rectangular structure.
6. The smoothly closed gate valve of claim 5, wherein: and a chamfer is arranged on the step above the valve plate cavity, and the outer sides of the bottoms of the left sealing plate and the right sealing plate are provided with fillets.
7. The gate valve of claim 5 or 6, wherein: and a circle of sealing ring is arranged on the inner wall of the valve plate cavity.
8. The smoothly closed gate valve of claim 1, wherein: the left sealing plate and the right sealing plate are rotatably connected in the groove of the positioning plate through a rotating shaft.
9. The smoothly closed gate valve of claim 5, wherein: the valve plate cavity is characterized in that embedded grooves are formed in two sides of the valve plate cavity, embedded steps used for being embedded into the embedded grooves are arranged at the lower ends of the left sealing plate and the right sealing plate, and sealing gaskets are arranged in the embedded grooves.
10. The smoothly closed gate valve of claim 9, wherein: the embedded groove is matched with the embedded step, and the cross sections of the embedded groove and the embedded step are both of inverted trapezoidal structures.
Technical Field
The invention relates to the technical field of the invention, in particular to a gate valve which is smoothly closed.
Background
The gate valve is a valve which uses a flashboard as an opening and closing piece and moves along the vertical direction of the axis of a valve seat so as to realize opening and closing actions; the valve has wide application on pipelines and is suitable for being manufactured into a large-caliber valve; the main advantages are smooth flow channel, small fluid resistance and small opening and closing torque. The gate valve has the advantages that the gate valve is obvious, the defects are also obvious, in order to guarantee the sealing performance of the valve when the gate valve is closed, the fitting degree between the valve plate and the valve seat (equivalent to the step in fig. 5) of the common gate valve is very high, the friction between the gate plate and the valve seat is huge when the gate valve is opened and closed, and the gate plate is easy to clamp on the valve seat and cannot move downwards when the gate valve is closed, so that the gate valve is difficult to close or the gate valve is directly failed to close. And long-term friction between the valve plate and the valve seat causes serious abrasion, and the problem of leakage caused by reduction of the sealing degree is easy to occur.
Disclosure of Invention
Aiming at the defects in the background technology, the invention provides a gate valve which is closed smoothly.
The technical scheme adopted by the invention is as follows: the utility model provides a closed smooth and easy gate valve, includes the valve body, be equipped with top open-ended valve pocket in the valve body, the opening part fixed mounting of valve pocket top has the valve gap, and the both sides of valve body are equipped with water inlet and the delivery port that communicates to the valve pocket, water inlet and the coaxial setting of delivery port, be equipped with drive assembly on the valve gap, the last valve plate subassembly that is used for sealed water inlet and delivery port that is connected with of drive assembly, the valve plate subassembly includes:
the positioning mechanism comprises a positioning plate and a connecting rod which are integrally formed;
the left sealing plate and the right sealing plate are rotatably connected to two sides of the positioning plate;
go up spring and lower spring, the both ends of going up the spring are connected in left sealing plate and right sealing plate top, the both ends of lower spring are connected in left sealing plate and right sealing plate below, and go up the outside elasticity of spring force and be greater than the elasticity of lower spring.
Furthermore, the driving assembly comprises a screw rod and a handle, one end of the screw rod penetrates through the valve cover and extends into the valve cavity, and the other end of the screw rod is arranged outside the valve body and fixedly connected with the handle.
Furthermore, a filler is arranged between the screw rod and the valve cover.
Furthermore, the upper end of connecting rod has the connecting block, is equipped with the spread groove on the shown connecting block, the lead screw passes through the bearing and is connected with the connecting block.
Further, the water inlet and the water outlet form a valve plate cavity for pressing the valve plate assembly into, and the valve plate cavity is of a square or rectangular structure.
Furthermore, a chamfer is arranged on the step above the valve plate cavity, and the outer sides of the bottoms of the left sealing plate and the right sealing plate are provided with fillets.
Furthermore, a circle of sealing ring is arranged on the inner wall of the valve plate cavity.
Furthermore, the left sealing plate and the right sealing plate are rotatably connected in the groove of the positioning plate through a rotating shaft.
Furthermore, embedded grooves are formed in two sides of the valve plate cavity, embedded steps used for being embedded into the embedded grooves are formed in the lower ends of the left sealing plate and the right sealing plate, and sealing gaskets are arranged in the embedded grooves.
Furthermore, the embedded groove is matched with the embedded step, and the cross sections of the embedded groove and the embedded step are both of inverted trapezoidal structures.
The invention has the beneficial effects that: according to the invention, the elastic valve plate assembly is arranged, and the left sealing plate and the right sealing plate of the valve plate assembly contract inwards under the action of elasticity when the valve plate assembly is closed, so that the valve plate assembly can easily enter the valve seat to complete the closing of the valve, the closing smoothness of the gate valve is effectively improved, and the clamping stagnation problem is avoided.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided.
The present invention will be described in further detail below with reference to the drawings.
Drawings
FIG. 1 is a schematic view of the present invention in the closed state.
Fig. 2 is a schematic view of the present invention in an open state.
FIG. 3 is a schematic top view of a valve plate cavity.
Fig. 4 is a schematic view of the connection between the left and right sealing plates and the positioning plate.
Fig. 5 is an enlarged schematic view of a portion a in fig. 1.
Fig. 6 is an enlarged schematic view of B in fig. 1.
In FIGS. 1-6: 1. a valve body; 2. a valve cavity; 3. a valve cover; 5. a water inlet; 6. a water outlet; 7. positioning a plate; 8. a connecting rod; 9. a left seal plate; 10. a right sealing plate; 11. an upper spring; 12. a lower spring; 13. a screw rod; 14. a handle; 15. a filler; 16. connecting blocks; 17. connecting grooves; 18. a valve plate cavity; 19. chamfering; 20. rounding off; 21. a seal ring; 22. a rotating shaft; 23. a groove; 24. a step; 25. a groove is embedded; 26. embedding a step; 27. and a gasket.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
The invention provides a gate valve which can be smoothly closed.
In this embodiment, referring to fig. 1 to 4, this gate valve that closes smoothly includes
the positioning mechanism comprises a
the left sealing plate 9 and the
go up
As shown in fig. 2, under the gate valve is in the on-state, valve plate assembly went upward the state promptly, and the left sealing plate and the right sealing plate of valve plate assembly make left sealing plate and right sealing plate be little big-end-up's V-arrangement structure under the effect of last spring and lower spring to when closing the gate valve, left sealing plate and right sealing plate just can stretch into the valve plate chamber between water inlet and the delivery port very easily and realize sealing, effectively improve the closed smooth and easy nature of gate valve, avoid appearing the jamming problem.
After adopting above-mentioned technical scheme, though contact each other certainly between the seal face of left valve plate and right valve plate and water inlet and delivery port, still can the looks mutual friction when opening and close, but because the setting of spring has fine elastic buffer effect, greatly reduced the friction of the seal face of left valve plate and right valve plate and water inlet and delivery port, help improving the life of left valve plate and right valve plate.
Specifically, the driving assembly comprises a
In order to improve the sealing performance between the screw rod and the valve cover, a
Specifically, the upper end of the connecting rod is provided with a connecting block 16, the connecting block 16 is provided with a connecting groove 17, and the screw rod is connected with the connecting block through a bearing; the water inlet and the water outlet form a
As shown in fig. 1-3, the terminal surface is the seal face of water inlet and delivery port about the valve plate chamber, its surface be with left sealing plate and right sealing plate assorted planar structure, water inlet and delivery port inwards extend and
Specifically, a circle of sealing
When the left sealing plate and the right sealing plate return, the maximum width between the left sealing plate and the right sealing plate is smaller than or equal to the distance between the left inner wall and the right inner wall of the valve clack cavity, and the sealing ring is attached and sealed with the left sealing plate and the right sealing plate.
Specifically, two sides of the valve plate cavity are provided with embedded grooves 25, the lower ends of the left sealing plate and the right sealing plate are provided with embedded steps 26 for embedding the embedded grooves 25, and the embedded grooves are internally provided with sealing gaskets 27; the embedded groove is matched with the embedded step, and the cross sections of the embedded groove and the embedded step are both of inverted trapezoidal structures.
Among the above-mentioned technical scheme, the lower extreme at left side closing plate and right closing plate sets up the embedding step, and when sealed at every turn, the embedding step of valve plate all can be embedded into the embedded groove to guarantee that the gate valve is sealed to withdraw the vertical sealed position of valve plate, avoid the slight rotation of valve plate appearance when sealed about the free rotation, lead to sealing performance to descend, help improving the sealing performance of gate valve. Wherein embedding step and embedding groove looks adaptation adopt the trapezoidal structure of falling to be convenient for imbed the step embedding groove, avoid appearing the jamming problem.
According to the invention, the elastic valve plate assembly is arranged, and the left sealing plate and the right sealing plate of the valve plate assembly contract inwards under the action of elasticity when the valve plate assembly is closed, so that the valve plate assembly can easily enter the valve seat to complete the closing of the valve, the closing smoothness of the gate valve is effectively improved, and the clamping stagnation problem is avoided.
The skilled person should understand that: although the invention has been described in terms of the above specific embodiments, the inventive concept is not limited thereto and any modification applying the inventive concept is intended to be included within the scope of the patent claims.
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