CN219432529U

CN219432529U - Manual check valve convenient to change case

Info

Publication number: CN219432529U
Application number: CN202320703772.6U
Authority: CN
Inventors: 丁辉; 陈康; 丁杰
Original assignee: Anhui Longnai Intelligent Valve Co ltd
Current assignee: Anhui Longnai Intelligent Valve Co ltd
Priority date: 2023-04-03
Filing date: 2023-04-03
Publication date: 2023-07-28
Anticipated expiration: 2033-04-03

Abstract

The utility model provides a manual check valve convenient for replacing a valve core, and relates to the technical field of manual check valves. According to the utility model, through the clamping arrangement of the positioning ring and the positioning groove, the limiting of the rotation angle between the valve core and the valve body is facilitated, even if the adjusting shaft in the valve core is frequently rotated and adjusted, the looseness is difficult to be caused to the threaded connection between the valve core and the assembly groove, and the quick separation between the positioning block and the positioning groove is facilitated by matching with the dismounting mechanism.

Description

Manual check valve convenient to change case

Technical Field

The utility model relates to the technical field of manual check valves, in particular to a manual check valve with a valve core convenient to replace.

Background

The check valve is a valve with a circular valve clack and used for blocking the backflow of a medium by the action of the self weight and the pressure of the medium, and belongs to automatic valves, namely a check valve, a one-way valve, a reflux valve or an isolation valve, wherein the movement mode of the valve clack is divided into a lifting type and a swing type. The lifting check valve is similar to a stop valve in structure, and only lacks a valve rod for driving the valve clack, so that medium flows in from an inlet end (lower side) and flows out from an outlet end (upper side).

In the prior art, when a check valve core of a check valve assembled on a pipeline is installed, two ends of a valve body are communicated with the pipeline, the valve core of a manual check valve is installed by only carrying out threaded sealing connection between the valve core and the valve body, when the check valve is manually adjusted, a handle arranged outside the valve core is required to be rotated, and the rotation adjustment of the handle of the valve core is often carried out, so that the threaded connection between the valve core and the valve body is easily loosened to cause the reduction of tightness and the generation of water leakage, therefore, the utility model provides the manual check valve convenient for replacing the valve core, and the problems in the prior art are solved.

Disclosure of Invention

According to the manual check valve convenient for replacing the valve core, the positioning ring and the positioning groove are clamped, limiting of the rotation angle between the valve core and the valve body is facilitated, even if an adjusting shaft in the valve core is frequently rotated and adjusted, looseness is difficult to be caused to threaded connection between the valve core and the assembly groove, and the valve core is convenient to quickly separate from the positioning block and the positioning groove by being matched with the dismounting mechanism.

In order to solve the problems, the utility model provides a manual check valve convenient for replacing a valve core, which comprises a valve body and the valve core, wherein the valve core is detachably arranged above the inside of the valve body, an assembly groove is formed above the inside of the valve body, a sealing plug is arranged at the central position of the inside of the valve core through an adjusting shaft, the sealing plug is arranged on the inner side surface of the valve core, the outer wall of the valve core is in threaded sealing assembly connection with the assembly groove, a positioning ring is slidably arranged above the outer wall of the valve core, a positioning block is arranged below the positioning ring, the outer wall of the valve body is provided with a positioning groove which is appropriately matched with the positioning block, and a dismounting mechanism is arranged on the positioning ring.

The further improvement is that: the positioning ring is arranged in linkage with the outer wall of the valve core, and a hexagonal ring is arranged on the outer wall of the valve core above the positioning ring.

The further improvement is that: the dismounting mechanism comprises an end ring and a spring, the end ring is rotatably arranged above the positioning ring, a through groove is formed in the positioning ring, a fixed shaft is arranged at the upper end of the positioning block, the positioning block is connected with the through groove in an assembling mode through the spring, and the positioning block extends out of the through groove and is assembled with the positioning groove in a clamping mode.

The further improvement is that: the upper end of the spring is connected with the upper end of the through groove in an assembling mode, the lower end of the spring is connected with the upper portion of the positioning block in an assembling mode, the lower end of the fixed shaft is connected with the center position of the upper portion of the positioning block in an assembling mode, and the upper end of the fixed shaft penetrates through the spring and extends out of the through groove.

The further improvement is that: the end ring is provided with a plurality of limit grooves which are matched with the through grooves and are mutually communicated.

The further improvement is that: the lower part of the end ring is provided with a clamping groove, the upper part of the positioning ring is provided with a clamping ring which is rotationally clamped with the clamping groove, and the edge of the upper end of the fixed shaft is provided with a round corner.

The further improvement is that: the upper end of the sealing plug is arranged below the inner part of the valve core in a sliding manner, and the lower end thread of the adjusting shaft penetrates through the center of the valve core and is in rotary connection with the sealing plug.

The beneficial effects of the utility model are as follows: this manual check valve convenient to change case passes the mounting groove with the sealing plug of below through the case to with screw thread seal assembly connection between case and the mounting groove, after the assembly, the locating piece of holding ring below just aims at the mounting groove, through pressing down the holding ring, make the holding ring move down, make locating piece and holding groove block set up, make can not take place to rotate between valve body and the case, thereby even frequent rotation adjustment to the regulating spindle in the case, also be difficult to cause not hard up to screw thread connection between case and the mounting groove, thereby the leakproofness between valve body and the case has effectively been guaranteed, through the dismounting mechanism of setting, be convenient for separate between locating piece and the mounting groove to the holding ring below, thereby be convenient for dismantle between valve body and the case, the staff of being convenient for uses.

Drawings

Fig. 1 is a perspective view of the present utility model.

Fig. 2 is an exploded view of the present utility model.

FIG. 3 is a schematic view of a retaining ring according to the present utility model.

Fig. 4 is a schematic diagram of an end ring according to the present utility model.

Wherein: 1. a valve body; 2. a valve core; 3. an adjusting shaft; 4. an assembly groove; 5. a sealing plug; 6. a positioning ring; 7. a positioning block; 8. a positioning groove; 9. a hexagonal ring; 10. an end ring; 11. a spring; 12. a through groove; 13. a fixed shaft; 14. a limit groove; 15. a clamping groove; 16. and a clamping ring.

Description of the embodiments

The present utility model will be further described in detail with reference to the following examples, which are only for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.

According to the manual check valve convenient to replace the valve core, shown in fig. 1, 2, 3 and 4, the manual check valve comprises a valve body 1 and a valve core 2, the valve core 2 is detachably arranged above the inside of the valve body 1, an assembly groove 4 is formed in the upper portion inside the valve body 1, a sealing plug 5 is arranged at the center position inside the valve core 2 through an adjusting shaft 3, the sealing plug 5 is arranged on the inner side surface of the valve core 2, the outer wall of the valve core 2 is in threaded sealing assembly connection with the assembly groove 4, a positioning ring 6 is slidably arranged above the outer wall of the valve core 2, a positioning block 7 is arranged below the inner side of the positioning ring 6, the outer wall of the valve body 1 is provided with a positioning groove 8 which is appropriately matched with the positioning block 7, a dismounting mechanism is arranged on the positioning ring 6, when the valve body 1 and the valve core 2 are assembled, the sealing plug 5 below the valve core 2 penetrates through the assembly groove 4, the threaded sealing assembly connection between the valve core 2 and the assembly groove 4, after the assembly, a positioning block 7 below the positioning ring 6 is just aligned with the positioning groove 8, the positioning ring 6 is pressed, the positioning ring 6 is enabled to be convenient to rotate, the positioning ring 7 is enabled to be not to be in a loose condition that the axial connection between the positioning ring 2 and the valve core 2 is convenient to rotate, the positioning ring 2 is not easy to rotate, and the positioning groove 2 is conveniently arranged between the positioning ring 2 and the valve body 2 through the adjusting shaft 3 and the positioning groove 2, and the positioning groove is convenient to rotate, and the positioning groove is convenient to be conveniently arranged between the positioning groove 2 and the valve body.

The locating ring 6 and the outer wall of the valve core 2 are arranged in a linkage mode, a hexagonal ring 9 is arranged on the outer wall of the valve core 2 above the locating ring 6, and the hexagonal ring 9 is clamped by using a tool conveniently through the arranged hexagonal ring 9, so that the hexagonal ring 9 is clamped and rotated, and the valve core 2 and the valve body 1 are rotated and disassembled conveniently.

The dismounting mechanism comprises an end ring 10 and a spring 11, the end ring 10 is rotatably arranged above the positioning ring 6, a through groove 12 is formed in the positioning ring 6, a fixed shaft 13 is arranged at the upper end of the positioning block 7, the positioning block 7 is connected with the through groove 12 in an assembling manner through the spring 11, the positioning block 7 extends out of the through groove 12 and is assembled with the positioning groove 8 in a clamping manner, when the positioning block 7 is clamped, the end ring 10 is rotated above the through groove 12, the fixed shaft 13 is extruded into the through groove 12, the positioning block 7 is further driven to be clamped in the positioning groove 8, when the end ring 10 is removed, the spring 11 contracts under pressure, and the positioning block 7 is driven to move upwards, so that the positioning groove 8 is separated from the positioning block 7, and the dismounting is convenient.

The upper end of the spring 11 is assembled and connected with the upper end of the through groove 12, the lower end of the spring 11 is assembled and connected with the upper part of the positioning block 7, the lower end of the fixed shaft 13 is assembled and connected with the upper center position of the positioning block 7, the upper end of the fixed shaft 13 penetrates through the spring 11 and extends out of the through groove 12, the spring 11 in a relaxed state is arranged in the through groove 12, the positioning block 7 at the moment is completely contracted in the through groove 12, the upper end of the fixed shaft 13 extends out of the through groove 12, the spring 11 under the clamping assembly is stretched, the positioning block 7 is clamped with the positioning groove 8, and the upper end of the fixed shaft 13 is flush with the upper end of the through groove 12.

The end ring 10 is provided with a plurality of limiting grooves 14, and the limiting grooves 14 are matched with the through grooves 12 and are mutually communicated.

The lower part of end ring 10 is equipped with block groove 15, the top of holding ring 6 be equipped with block groove 15 rotates the block ring 16 that the block set up, the upper end edge of fixed axle 13 is the fillet setting, rotates the setting through the block of block groove 15 with block ring 16, is convenient for rotate end ring 10 on holding ring 6, and when spacing groove 14 and logical groove 12 intercommunication, convenient to detach carries out the block setting on the contrary.

The upper end of the sealing plug 5 is slidably arranged below the inner part of the valve core 2, the lower end thread of the adjusting shaft 3 penetrates through the central position of the valve core 2 and is rotationally connected with the sealing plug 5, and the valve core 2 is conveniently adjusted up and down by rotationally connecting the adjusting shaft 3 with the valve core 2 through the thread, so that the opening and closing operation of the valve body 1 is realized.

When the manual check valve convenient for replacing the valve core is used for assembling the valve body 1 and the valve core 2, the valve core 2 and the sealing plug 5 below penetrate through the assembling groove 4, the valve core 2 and the assembling groove 4 are in threaded sealing assembling connection, after the valve core 2 and the assembling groove 4 are assembled, the positioning block 7 below the positioning ring 6 is just aligned with the positioning groove 8, the positioning ring 6 is pressed, the positioning ring 6 moves downwards, the positioning block 7 and the positioning groove 8 are clamped, the valve body 1 and the valve core 2 cannot rotate, even if the adjusting shaft 3 in the valve core 2 is frequently rotated and adjusted, looseness is difficult to be caused for threaded connection between the valve core 2 and the assembling groove 4, sealing performance between the valve body 1 and the valve core 2 is effectively guaranteed, and through the dismounting mechanism, the positioning block 7 below the positioning ring 6 and the positioning groove 8 are separated conveniently, so that the valve body 1 and the valve core 2 are dismounted conveniently, and workers can use conveniently.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A manual check valve convenient to change case, its characterized in that: including valve body (1) and case (2), case (2) can dismantle the setting and be in the inside top of valve body (1), the inside top of valve body (1) is equipped with mounting groove (4), case (2) inside central point puts department and is equipped with sealing plug (5) through regulating spindle (3), sealing plug (5) set up case (2) medial surface, the outer wall of case (2) with mounting groove (4) screw thread seal assembly connection, the outer wall top of case (2) is slided and is equipped with holding ring (6), the inside below of holding ring (6) is equipped with locating piece (7), the outer wall of valve body (1) be equipped with holding tank (8) of locating piece (7) card suitable cooperation, be equipped with disassembly body on holding ring (6).

2. A manual check valve for facilitating replacement of a valve cartridge as defined in claim 1, wherein: the positioning ring (6) is arranged in linkage with the outer wall of the valve core (2), and a hexagonal ring (9) is arranged on the outer wall of the valve core (2) above the positioning ring (6).

3. A manual check valve for facilitating replacement of a valve cartridge as defined in claim 2, wherein: the dismounting mechanism comprises an end ring (10) and a spring (11), the end ring (10) is rotatably arranged above the positioning ring (6), a through groove (12) is formed in the positioning ring (6), a fixed shaft (13) is arranged at the upper end of the positioning block (7), the positioning block (7) is assembled and connected with the through groove (12) through the spring (11), and the positioning block (7) extends out of the through groove (12) and is assembled and arranged with the positioning groove (8) in a clamping mode.

4. A manual check valve for facilitating replacement of a valve cartridge as defined in claim 3, wherein: the upper end of the spring (11) is connected with the upper end of the through groove (12) in an assembling mode, the lower end of the spring (11) is connected with the upper portion of the positioning block (7) in an assembling mode, the lower end of the fixed shaft (13) is connected with the central position above the positioning block (7) in an assembling mode, and the upper end of the fixed shaft (13) penetrates through the spring (11) and extends out of the through groove (12).

5. A manual check valve for facilitating replacement of a valve cartridge as defined in claim 4 wherein: a plurality of limiting grooves (14) are formed in the end ring (10), and the limiting grooves (14) are matched with the through grooves (12) and are communicated with each other.

6. A manual check valve for facilitating replacement of a valve cartridge as defined in claim 5, wherein: the lower part of the end ring (10) is provided with a clamping groove (15), the upper part of the positioning ring (6) is provided with a clamping ring (16) which is rotationally clamped with the clamping groove (15), and the edge of the upper end of the fixed shaft (13) is provided with a round corner.

7. A manual check valve for facilitating replacement of a valve cartridge as defined in claim 1, wherein: the upper end of the sealing plug (5) is arranged below the inside of the valve core (2) in a sliding manner, and the lower end thread of the adjusting shaft (3) penetrates through the center of the valve core (2) and is rotationally connected with the sealing plug (5).