阅读说明：本技术 一种轴流式止回阀用关闭阻尼结构 (Closing damping structure for axial-flow check valve ) 是由 卓振基 孙爱军 许新城 何崇林 卓志森 暨文洋 于 2020-05-26 设计创作，主要内容包括：本发明公开了一种轴流式止回阀用关闭阻尼结构,属于止回阀技术领域,包括阀体一,所述阀体一的内部固定有凹形座,所述凹形座的内部贯穿有T形杆,所述T形杆的一端固定有圆形堵板,所述圆形堵板靠近凹形座的一侧设置有控制组件,本发明通过在阀体一的上端贯穿连接杆,连接杆底端连接的固定圆柱的外侧固定有抵挡条,这种结构在弹簧发生损坏时通过转动把手带动抵挡条对圆形堵板施压堵住流道口；本发明通过在阀体一和阀体二之间设置连接件,连接件的顶端贯穿有紧固螺钉,这种结构通过使紧固螺钉螺纹嵌入螺纹孔内配合限位杆嵌入限位槽实现连接件与阀体一和阀体二的连接固定,拆卸时只需拧松紧固螺钉即可轻松实现。(The invention discloses a closing damping structure for an axial flow check valve, which belongs to the technical field of check valves and comprises a first valve body, wherein a concave seat is fixed inside the first valve body, a T-shaped rod penetrates through the concave seat, a circular blocking plate is fixed at one end of the T-shaped rod, and a control assembly is arranged on one side, close to the concave seat, of the circular blocking plate; according to the invention, the connecting piece is arranged between the first valve body and the second valve body, the fastening screw penetrates through the top end of the connecting piece, the connecting piece is connected and fixed with the first valve body and the second valve body by embedding the fastening screw thread into the threaded hole and matching with the limiting rod to be embedded into the limiting groove, and the disassembly can be easily realized by only unscrewing the fastening screw.)

1. The utility model provides an axial-flow is closing damping structure for check valve, includes valve body (1), its characterized in that: the inner part of the first valve body (1) is fixed with a concave seat (2), one side of the first valve body (1) is provided with a connecting piece (9), one side of the first valve body (1) far away from the connecting piece (9) is provided with a second valve body (7), a T-shaped rod (11) penetrates through the inner part of the concave seat (2), a spring (4) is sleeved on the periphery of the T-shaped rod (11), one end of the T-shaped rod (11) far away from the concave seat (2) is fixed with a circular blocking plate (5), one side of the circular blocking plate (5) close to the concave seat (2) is provided with a control assembly (10), the control assembly (10) comprises a blocking strip (103), a fixed cylinder (104), a connecting rod (106) and a handle (107), wherein the upper end of the first valve body (1) penetrates through a connecting rod (106), the lower end of the connecting rod (106) is connected with the fixed cylinder (104), and the top end of the connecting rod (106), one side of the fixed cylinder (104) is fixed with a resisting strip (103).

2. The closure damping structure for an axial flow check valve according to claim 1, wherein: the inside of spill seat (2) is provided with through-hole (3), and passes through spring (4) elastic connection between spill seat (2) and circular closure plate (5), the inside of connecting piece (9) is provided with runner port (6), the internal diameter of runner port (6) slightly is less than the diameter of circular closure plate (5).

3. The closure damping structure for an axial flow check valve according to claim 1, wherein: the control assembly (10) further comprises a limiting hole (101), a fixed circular plate (102) and a limiting screw (105), wherein the upper end of the connecting rod (106) penetrates through the fixed circular plate (102) which is arranged on the outer side of the valve body I (1), the limiting hole (101) is formed in the fixed circular plate (102), and the limiting screw (105) penetrates through the internal thread of the limiting hole (101).

4. The closure damping structure for an axial flow check valve according to claim 1, wherein: the valve body I (1) is provided with a limiting groove (15) on the side wall of one end close to the connecting piece (9), and a limiting rod (13) corresponding to the limiting groove (15) is fixed on the side wall of one end of the valve body II (7) close to the connecting piece (9).

5. The closure damping structure for an axial flow check valve according to claim 1, wherein: the upper ends of the first valve body (1) and the second valve body (7) are provided with threaded holes (12), and fastening screws (8) corresponding to the threaded holes (12) penetrate through the upper end extending part threads of the connecting piece (9).

6. The closure damping structure for an axial flow check valve according to claim 1, wherein: and a sealing gasket (14) is fixed on the outer side of the connecting piece (9).

Technical Field

The invention belongs to the technical field of check valves, and particularly relates to a closing damping structure for an axial-flow check valve.

Background

The check valve is a valve with a circular valve clack and acts by self weight and medium pressure to block the medium from flowing backwards. It belongs to the automatic valve category, also called check valve, reflux valve or isolation valve. The valve clack motion mode is divided into lifting type and swing type. The lift check valve is similar in construction to a stop valve, lacking only a valve stem to actuate the flap, and may also be used to supply lines to auxiliary systems where the pressure may rise above the system pressure.

Disclosure of Invention

To solve the problems set forth in the background art described above. The invention provides a closing damping structure for an axial flow type check valve, which has the characteristics of good water stopping effect and simplicity in disassembly.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an axial-flow check is with closing damping structure, includes valve body one, the inside of valve body one is fixed with the spill seat, and one side of valve body one is provided with the connecting piece, one side that valve body one was kept away from to the connecting piece is connected with valve body two, the inside of spill seat is run through there is T shape pole, the periphery cover of T shape pole is equipped with the spring, and the T shape pole one end of keeping away from the spill seat is fixed with circular closure plate, one side that circular closure plate is close to the spill seat is provided with control assembly, control assembly includes offset strip, fixed cylinder, connecting rod and handle, wherein, the upper end of valve body one is run through there is the connecting rod, the lower extreme of connecting rod is connected with the stationary cylinder, and the top of connecting rod is connected with the handle, one side of stationary.

Preferably, the inside of spill seat is provided with the through-hole, and passes through spring elastic connection between spill seat and the circular closure plate, the inside of connecting piece is provided with the runner mouth, the internal diameter of runner mouth slightly is less than the diameter of circular closure plate, circular closure plate just closely pastes with the runner mouth when the spring is in natural state and is in the same place.

Preferably, the control assembly still includes spacing hole, fixed plectane and stop screw, wherein, the upper end of connecting rod runs through and is fixed with the fixed plectane that sets up a valve body outside, the inside of fixed plectane is provided with spacing hole, the inside screw thread in spacing hole runs through there is stop screw, the length of resisting strip slightly is greater than the interval size of circular closure plate and concave seat bulge end when the spring is in natural state.

Preferably, the side wall of one end of the first valve body, which is close to the connecting piece, is provided with a limit groove, and the side wall of one end of the second valve body, which is close to the connecting piece, is fixed with a limit rod corresponding to the limit groove.

Preferably, the upper ends of the first valve body and the second valve body are both provided with threaded holes, and fastening screws corresponding to the threaded holes penetrate through the upper end extending part threads of the connecting piece.

Preferably, a sealing gasket is fixed on the outer side of the connecting piece.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the structure, the T-shaped rod with the spring sleeved on the periphery is arranged in the valve body I, the round blocking plate is fixed at one end of the T-shaped rod, the connecting rod with the top end connected with the handle penetrates through the upper end of the valve body I, and the blocking strip is fixed on the outer side of the fixed cylinder connected with the bottom end of the connecting rod;

2. according to the invention, the connecting piece with the sealing gasket bonded on the outer side is arranged between the first valve body and the second valve body, the fastening screw penetrates through the top end extension part of the connecting piece in a threaded manner, the structure realizes the connection and fixation of the connecting piece and the first valve body and the second valve body by embedding the fastening screw thread into the threaded hole and matching with the structure that the limiting rod is embedded into the limiting groove, and the disassembly can be easily realized by only unscrewing the fastening screw.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the connection structure of the connector of the present invention;

FIG. 3 is a schematic top view of the present invention;

FIG. 4 is a schematic structural diagram of a control assembly according to the present invention;

in the figure: 1. a first valve body; 2. a concave seat; 3. a through hole; 4. a spring; 5. a circular closure plate; 6. a runner port; 7. a second valve body; 8. fastening screws; 9. a connecting member; 10. a control component; 101. a limiting hole; 102. fixing the circular plate; 103. a resist strip; 104. fixing the cylinder; 105. a limit screw; 106. a connecting rod; 107. a handle; 11. a T-shaped rod; 12. a threaded hole; 13. a limiting rod; 14. a gasket; 15. a limiting groove.

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.

Referring to fig. 1-4, the present invention provides the following technical solutions: the utility model provides an axial-flow check valve is with closing damping structure, including valve body 1, the inside of valve body 1 is fixed with spill seat 2, and one side of valve body 1 is provided with connecting piece 9, one side that valve body 1 was kept away from to connecting piece 9 is connected with valve body two 7, the inside of spill seat 2 is run through there is T shape pole 11, the periphery cover of T shape pole 11 is equipped with spring 4, and the one end that spill seat 2 was kept away from to T shape pole 11 is fixed with circular closure plate 5, one side that circular closure plate 5 is close to spill seat 2 is provided with control assembly 10, control assembly 10 includes offset strip 103, fixed cylinder 104, connecting rod 106 and handle 107, wherein, the upper end of valve body 1 is run through there is connecting rod 106, the lower extreme of connecting rod 106 is connected with fixed cylinder 104, and the top of connecting rod 106 is connected with handle 107, one side of fixed cylinder 104 is fixed.

Specifically, the T-shaped rod 11 is connected with the concave seat 2 through a linear bearing, the through hole 3 is formed in the concave seat 2, the concave seat 2 is elastically connected with the circular blocking plate 5 through the spring 4, the flow passage opening 6 is formed in the connecting piece 9, the inner diameter of the flow passage opening 6 is three centimeters smaller than the diameter of the circular blocking plate 5, and the circular blocking plate 5 is tightly attached to the flow passage opening 6 when the spring 4 is in a natural state.

Through adopting above-mentioned technical scheme, when getting into rivers in the valve body two 7, rivers exert pressure the cooperation to circular closure plate 5 and promote T shape pole 11 and remove, thereby realize opening of runner port 6, rivers then flow through runner port 6 and get into the play of rethread through-hole 3 in the valve body 1, circular closure plate 5 pressurized disappears when rivers stop, thereby spring 4 begins to reset and drives circular closure plate 5 and remove and plug up runner port 6, can realize the stagnant water process like this and avoid appearing the backward flow condition.

Specifically, the control assembly 10 further includes a limiting hole 101, a fixed circular plate 102 and a limiting screw 105, wherein the connecting rod 106 is connected to the top end of the first valve body 1 through a rotating bearing, the upper end of the connecting rod 106 penetrates through and is fixed with the fixed circular plate 102 arranged on the outer side of the first valve body 1, the limiting hole 101 is arranged inside the fixed circular plate 102, the limiting screw 105 penetrates through the internal thread of the limiting hole 101, and the length of the blocking strip 103 is five centimeters larger than the distance between the protruding end of the concave seat 2 and the circular blocking plate 5 when the spring 4 is in a natural state.

Through adopting above-mentioned technical scheme, when spring 4 takes place to damage and can't reset when kick-backing, rotate handle 107, handle 107 rotates and drives connecting rod 106 and rotate and further drive fixed cylinder 104 and rotate, the rotation of keeping off strip 103 cooperation fixed cylinder 104 also rotates and exert pressure to circular closure plate 5 simultaneously, when the rotation process of handle 107 appears hindering, the rotation that stops handle 107 then screws up the fastening screw 8 that corresponds the spacing hole 101 of screw thread embedding and can realize spacing to fixed plectane 102, avoid handle 107 automatic reversal.

Specifically, a limiting groove 15 is formed in the side wall of one end, close to the connecting piece 9, of the first valve body 1, a limiting rod 13 corresponding to the limiting groove 15 is fixed to the side wall of one end, close to the connecting piece 9, of the second valve body 7, and a through groove with the same end diameter as the limiting groove 15 is formed in the connecting piece 9 and the sealing gasket 14, corresponding to the limiting rod 13.

Through adopting above-mentioned technical scheme, closely laminating connecting piece 9 and placing between valve body 1 and valve body two 7, then make gag lever post 13 correspond and insert in spacing groove 15, can realize the location to valve body 1 and valve body two 7 fast like this.

Specifically, threaded holes 12 are formed in the upper ends of the first valve body 1 and the second valve body 7, and fastening screws 8 corresponding to the threaded holes 12 penetrate through the upper end extending portions of the connecting pieces 9 in a threaded mode.

Through adopting above-mentioned technical scheme, make fastening screw 8 screw thread embedding screw hole 12 in and screw up fastening screw 8, can realize the fixed between valve body 1 and valve body two 7 and connecting piece 9 like this.

Specifically, a gasket 14 is adhesively fixed to the outer side of the connector 9.

Through adopting above-mentioned technical scheme, can improve the leakproofness of being connected between valve body 1 and valve body two 7 and the connecting piece 9.

The working principle and the using process of the invention are as follows: when the check valve needs to work, firstly, the connecting piece 9 is tightly attached and placed between the first valve body 1 and the second valve body 7, then the limiting rod 13 is correspondingly inserted into the limiting groove 15, so that the positioning of the first valve body 1 and the second valve body 7 can be quickly realized, then the fastening screw 8 is embedded into the threaded hole 12 in a threaded manner and the fastening screw 8 is screwed, the first valve body 1 and the second valve body 7 are further connected and fixed, and when the connecting piece 9 needs to be disassembled, the first valve body 1 and the second valve body 7 can be moved only by unscrewing the fastening screw 8;

in the working process, when water flows enter the valve body II 7, the water flows press the circular blocking plate 5 to push the T-shaped rod 11 to move in a matched mode, so that the opening of the runner port 6 is realized, the water flows enter the valve body I1 through the runner port 6 and then flow out through the through hole 3, when the water flows stop, the circular blocking plate 5 is pressed to disappear, the spring 4 starts to reset to drive the circular blocking plate 5 to move so as to block the runner port 6, and therefore the backflow situation can be avoided in the water stopping process;

when the spring 4 is damaged and cannot be reset and rebounded, the handle 107 is rotated, the handle 107 rotates to drive the connecting rod 106 to rotate to further drive the fixed cylinder 104 to rotate, meanwhile, the blocking strip 103 is also rotated in cooperation with the rotation of the fixed cylinder 104 and presses the circular blocking plate 5 to block the runner opening 6, and when the rotation process of the handle 107 is blocked, the rotation of the handle 107 is stopped, and then the fastening screw 8 which is embedded into the limiting hole 101 through corresponding threads is screwed down, so that the fixed circular plate 102 can be limited, and the handle 107 is prevented from being automatically reversed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.