Check valve with quick release structure

Abstract

The utility model provides a check valve with a quick release structure, which comprises a check valve main body, a valve body upper component and a sealing gasket, and a lower connecting plate used for being connected with the valve body upper component is arranged at the upper end of the middle position in the internal composition of the check valve main body. The check valve has the advantages that the check valve body, the valve body upper assembly, the connecting bolt and the sealing gasket are additionally arranged, a valve element and other components are guided in from the upper portion of the lower connecting plate, the sealing gasket is placed on the inner side of the sealing ring groove and tightly pressed by the sealing ring, the quick connecting column is pulled upwards to enable the quick connecting spring to be stretched, and therefore the check valve is formed. The check valve has the advantages that the check valve body is provided with the quick-connecting holes, the quick-connecting columns are embedded into the quick-connecting holes, the upper valve body assembly is fixed by the resilience force of the quick-connecting springs, and two groups of connecting bolts are screwed into the inner sides of the first connecting threaded holes and the second connecting threaded holes to reinforce fixation, so that the quick-detaching effect can be achieved; and assembly and disassembly of components on the valve body can be assisted.

Description

Technical Field

[0001] The utility model belongs to the technical field of check valves, and in particular relates to a check valve equipped with a quick-disassembly structure. Background Art

[0002] A check valve, also known as a non-return valve or one-way valve, is an automatic valve whose main function is to prevent backflow in the direction of the medium's flow. When the medium flows in the predetermined direction, the valve opens; when the flow direction of the medium reverses, the valve automatically closes to prevent backflow. Most check valves consist of two major parts: the valve body and its check assembly. The multi-part connection in a check valve is mostly fixed by using four sets of bolts distributed equally around the circumference. During use, the check valve faces problems such as regular cleaning and maintenance, which requires the disassembly of the check valve. The disassembly of a check valve fixed with four sets of bolts requires the removal of each of the four sets of bolts separately, resulting in a longer disassembly time and increased overall inspection and maintenance time for the check valve, which may delay the normal use of the check valve.

[0003] In summary, the check valve without a quick-release structure has some problems in use, so it is hoped to propose a new structure to solve the above technical problems. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention aims to provide a check valve equipped with a quick-release structure to solve the problems raised in the above-mentioned background technology.

[0005] The utility model is achieved through the following technical solutions: a check valve equipped with a quick-release structure, comprising: a check valve body, a valve body upper component and a sealing gasket, the check valve body having an upper middle position in its internal composition provided with a lower connecting plate for connecting to the valve body upper component, the upper surface of the lower connecting plate having an interlocking ring groove, the lower end of the inner side of the interlocking ring groove being installed with a sealing gasket for improving the sealing, the valve body upper component being provided above the valve body upper component, the upper end of the internal composition of the valve body upper component being provided with an upper connecting plate, the upper surface of the upper connecting plate having two groups of connecting threaded holes two, the inner side of the connecting threaded hole two being provided with a connecting bolt for connecting and fixing the check valve body to the valve body upper component, the front and rear sides of the lower connecting plate being fixedly connected with a group of quick-connect seats for quick release.

[0006] As a preferred embodiment, a chimeric ring is fixedly connected to the center of the lower surface of the upper connecting plate, the chimeric ring and the chimeric ring groove are chimeric with each other and press the sealing gasket tightly, and a check column is provided below the chimeric ring.

[0007] As a preferred embodiment, a check spring for checking the medium is fixedly connected to the inner side of the check column, a valve core is provided below the check spring, a sealing ring is provided on the lower surface of the valve core, and a valve body shell is provided below the lower connecting plate, so that the check spring can drive the valve core to move downward and engage with the valve core engaging groove, so that the sealing ring and the sealing ring groove engage with each other to cut off the medium.

[0008] As a preferred embodiment, a valve core engaging groove is provided at the lower end of the inner side surface of the valve main body shell, and the valve core engages with the valve core engaging groove under the action of the rebound force of the check spring. A sealing ring groove is provided on the inner upper surface of the valve core engaging groove, and the sealing ring engages with the sealing ring groove.

[0009] As a preferred embodiment, an inner groove is provided on the inner side of the quick-connect seat, a quick-connect spring is provided on the inner side of the inner groove, a limit plate is provided above the quick-connect spring, a quick-connect column is provided above the limit plate, and two groups of quick-connect holes are provided on the upper surface of the upper connecting plate.

[0010] As a preferred embodiment, the quick-connect column and the quick-connect hole are interlocked, and the upper surface of the lower connecting plate is also provided with two groups of connecting threaded holes with the same center as the connecting threaded hole. The connecting bolt is screwed into the inner side of the connecting threaded hole two and the connecting threaded hole one for reinforced fixation. The quick-connect column is pulled upward and the quick-connect spring is stretched, so that the quick-connect column and the quick-connect hole are interlocked, and the upper connecting plate and the lower connecting plate can be connected and fixed under the action of the rebound force of the quick-connect spring.

[0011] As a preferred embodiment, the inner side of the valve body shell is provided with two sets of symmetrically distributed auxiliary guide grooves, and the outer side of the check column is provided with two sets of symmetrically distributed ball grooves, and the inner sides of the ball grooves are provided with guide balls;

[0012] An oil filling hole is provided above the ball groove, and a connecting hole is provided between the left and right groups of oil filling holes, which are respectively connected with the two groups of oil filling holes, so that the guide ball moves up and down in the auxiliary guide groove, thereby assisting the linear movement of the valve core.

[0013] After adopting the above technical scheme, the beneficial effects of the utility model are as follows: by adding the check valve body, the valve body upper component, the connecting bolt and the sealing gasket, the valve core and other components are introduced from above the lower connecting plate, the sealing gasket is placed in the inner side of the sealing ring groove and the sealing ring is pressed against it, the quick-connect column is pulled upward to stretch the quick-connect spring, so that the quick-connect column is embedded in the quick-connect hole. The rebound force of the quick-connect spring fixes the valve body upper component, and two sets of connecting bolts are screwed into the inner sides of the connecting threaded hole one and the connecting threaded hole two to strengthen the fixation, thereby achieving the effect of quick disassembly, and by adding the check valve body and the valve body upper component, the guide ball is moved up and down in the auxiliary guide groove, which can assist in the disassembly and assembly of the valve body upper component. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0015] Figure 1 This is a schematic diagram of the overall structure of a check valve equipped with a quick-release structure according to the present invention.

[0016] Figure 2 The utility model is a cross-sectional schematic diagram of a check valve equipped with a quick-disassembly structure.

[0017] Figure 3 The utility model is a structural schematic diagram of a check valve body in a check valve equipped with a quick-disassembly structure.

[0018] Figure 4 The utility model is a cross-sectional schematic diagram of a check valve body in a check valve equipped with a quick-disassembly structure.

[0019] Figure 5 The utility model is a structural schematic diagram of the upper assembly of the valve body in a check valve equipped with a quick-disassembly structure.

[0020] Figure 6 The utility model is a cross-sectional schematic diagram of a valve body upper component in a check valve equipped with a quick-disassembly structure.

[0021] In the figure, 100-check valve body, 101-lower connecting plate, 102-connecting threaded hole 1, 103-quick-connect seat, 104-quick-connect spring, 105-limiting plate, 106-quick-connect column, 107-sealing ring groove, 108-valve body shell, 109-auxiliary guide groove, 110-valve core fitting groove, 111-sealing ring groove;

[0022] Valve body upper assembly, 201-upper connecting plate, 202-quick-connect hole, 203-sealing ring, 204-check column, 205-guide ball, 206-oil filling hole, 207-connecting hole, 208-check spring, 209-valve core, 210-sealing ring;

[0023] 300-connecting bolt;

[0024] 400-Sealing gasket. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figures 1 to 6 The present invention provides a technical solution: a check valve with a quick-release structure, comprising: a check valve body 100, a valve body upper assembly 200, and a sealing gasket 400. The check valve body 100 has a lower connecting plate 101 at the upper middle end thereof for connecting with the valve body upper assembly 200;

[0027] An engaging ring groove 107 is formed on the upper surface of the lower connecting plate 101 , and a sealing gasket 400 for improving sealing performance is installed at the lower end of the inner side of the engaging ring groove 107 . A valve body upper assembly 200 is provided above the valve body upper assembly 200 ;

[0028] The upper end of the internal structure of the valve body upper component 200 is provided with an upper connecting plate 201, and two groups of connecting threaded holes 2 are opened on the upper surface of the upper connecting plate 201. The inner side of the connecting threaded hole 2 is provided with a connecting bolt 300 for connecting and fixing the check valve body 100 to the valve body upper component 200. A group of quick-connect seats 103 for quick disassembly are fixedly connected on the front and rear sides of the lower connecting plate 101.

[0029] A fitting ring 203 is fixedly connected to the center of the lower surface of the upper connecting plate 201 . The fitting ring 203 fits into the fitting ring groove 107 and presses the sealing gasket 400 . A check post 204 is provided below the fitting ring 203 .

[0030] A check spring 208 for checking the medium is fixedly connected to the inner side of the check column 204, a valve core 209 is provided below the check spring 208, a sealing ring 210 is provided on the lower surface of the valve core 209, and a valve body shell 108 is provided below the lower connecting plate 101, which can enable the check spring 208 to drive the valve core 209 to move downward and engage with the valve core engaging groove 110, so that the sealing ring 210 and the sealing ring groove 111 engage with each other to cut off the medium.

[0031] A valve core engaging groove 110 is provided at the lower end of the inner side surface of the valve main body shell 108, and the valve core 209 is engaged with the valve core engaging groove 110 under the action of the rebound force of the check spring 208. A sealing ring groove 111 is provided on the inner upper surface of the valve core engaging groove 110, and the sealing ring 210 is engaged with the sealing ring groove 111.

[0032] An inner groove is provided inside the quick-connect seat 103 , a quick-connect spring 104 is provided inside the inner groove, a limit plate 105 is provided above the quick-connect spring 104 , a quick-connect column 106 is provided above the limit plate 105 , and two sets of quick-connect holes 202 are provided on the upper surface of the upper connecting plate 201 .

[0033] The quick-connect column 106 and the quick-connect hole 202 are interlocked. The upper surface of the lower connecting plate 101 is also provided with two groups of connecting threaded holes 102 with the same center as the connecting threaded holes. The connecting bolt 300 is screwed into the inner side of the connecting threaded hole 2 and the connecting threaded hole 102 for reinforced fixation. The quick-connect column 106 is pulled upward and the quick-connect spring 104 is stretched, so that the quick-connect column 106 and the quick-connect hole 202 are interlocked. Under the action of the rebound force of the quick-connect spring 104, the upper connecting plate 201 and the lower connecting plate 101 can be connected and fixed.

[0034] See also Figures 1-6 Then, the check spring 208 drives the valve core 209 downward and engages with the valve core engaging groove 110, so that the sealing ring 210 and the sealing ring groove 111 engage with each other, thereby cutting off the medium. Secondly, the user can pull the quick-connect post 106 upward and stretch the quick-connect spring 104, so that the quick-connect post 106 and the quick-connect hole 202 engage with each other, and the upper connecting plate 201 and the lower connecting plate 101 can be connected and fixed by the rebound force of the quick-connect spring 104, and two sets of connecting bolts 300 are screwed into the inner sides of the connecting threaded hole 102 and the connecting threaded hole 2 to strengthen the fixation, reduce the use of the connecting bolt 300, and thus achieve the effect of quick disassembly.

[0035] The inner side of the valve body shell 108 is provided with two sets of symmetrically distributed auxiliary guide grooves 109, and the outer side of the check column 204 is provided with two sets of symmetrically distributed ball grooves, and the inner side of the ball grooves is provided with guide balls 205;

[0036] An oil filling hole 206 is provided above the ball groove, and a connecting hole 207 is provided between the left and right groups of oil filling holes 206, which are respectively connected to the two groups of oil filling holes 206, so that the guide ball 205 can move up and down in the auxiliary guide groove 109, which can assist the disassembly and assembly of the valve body upper component 200.

[0037] See also Figures 1-6As the second embodiment of the present utility model: Based on the above-mentioned first embodiment, when the valve body upper component 200 is disassembled and assembled, the guide ball 205 can roll inside the auxiliary guide groove 109, thereby assisting in guiding the valve body upper component 200 and reducing friction, and oil can be injected into the inside of the ball groove through the oil injection hole 206, and oil can be injected into the ball grooves on both sides through the connecting hole 207, thereby reducing friction when the guide ball 205 rolls.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A check valve with a quick-release structure, comprising: A check valve body (100), a valve body upper component (200), and a sealing gasket (400), characterized in that: the check valve body (100) is provided with a lower connecting plate (101) at the upper end of the middle position of its internal components for connecting with the valve body upper component (200); The upper surface of the lower connecting plate (101) is provided with an interlocking ring groove (107), and a sealing gasket (400) for improving sealing performance is installed at the lower end of the inner side of the interlocking ring groove (107). A valve body upper component (200) is provided above the valve body upper component (200); The upper end of the valve body upper component (200) is provided with an upper connecting plate (201) in its internal composition. Two groups of connecting threaded holes (2) are opened on the upper surface of the upper connecting plate (201). Connecting bolts (300) for connecting and fixing the check valve body (100) and the valve body upper component (200) are provided inside the connecting threaded holes (2). A group of quick-connect seats (103) for quick disassembly are fixedly connected to the front and rear sides of the lower connecting plate (101).

2. A check valve with a quick-release structure according to claim 1, characterized in that: A chimeric ring (203) is fixedly connected to the center of the lower surface of the upper connecting plate (201), the chimeric ring (203) and the chimeric ring groove (107) are chimeric with each other and press-connected to the sealing gasket (400), and a check column (204) is provided below the chimeric ring (203).

3. A check valve with a quick-release structure according to claim 2, characterized in that: A check spring (208) for checking the medium is fixedly connected to the inner side of the check column (204), a valve core (209) is provided below the check spring (208), a sealing ring (210) is provided on the lower surface of the valve core (209), and a valve body shell (108) is provided below the lower connecting plate (101).

4. A check valve with a quick-release structure according to claim 3, characterized in that: A valve core engaging groove (110) is provided at the lower end of the inner side surface of the valve main body shell (108), and the valve core (209) engages with the valve core engaging groove (110) under the action of the rebound force of the check spring (208). A sealing ring groove (111) is provided on the inner upper surface of the valve core engaging groove (110), and the sealing ring (210) engages with the sealing ring groove (111).

5. The check valve with a quick-release structure according to claim 1, characterized in that: An inner groove is provided on the inner side of the quick-connect seat (103), a quick-connect spring (104) is provided on the inner side of the inner groove, a limiting plate (105) is provided above the quick-connect spring (104), a quick-connect column (106) is provided above the limiting plate (105), and two groups of quick-connect holes (202) are provided on the upper surface of the upper connecting plate (201).

6. The check valve with a quick-release structure according to claim 5, characterized in that: The quick-connect column (106) and the quick-connect hole (202) are interlocked, and the upper surface of the lower connecting plate (101) is further provided with two groups of connecting threaded holes (102) with the same center as the connecting threaded holes. The connecting bolt (300) is screwed into the inner side of the connecting threaded hole (2) and the connecting threaded hole (102) for reinforced fixation.

7. The check valve with a quick-release structure according to claim 3, characterized in that: The inner side of the valve body shell (108) is provided with two sets of symmetrically distributed auxiliary guide grooves (109), and the outer side of the check column (204) is provided with two sets of symmetrically distributed ball grooves, and the inner sides of the ball grooves are provided with guide balls (205); An oil filling hole (206) is provided above the ball groove, and a communication hole (207) is provided between the left and right groups of the oil filling holes (206), which are respectively communicated with the two groups of oil filling holes (206).

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