Spherical check valve with high opening and closing efficiency

Abstract

The utility model relates to the technical field of spherical check valves, and discloses a spherical check valve with high opening and closing efficiency, which comprises a spherical check valve body and a connecting seat, one side of the connecting seat is fixedly connected to one side of the spherical check valve body, and the other side of the connecting seat is fixedly connected to the other side of the spherical check valve body. A detachable maintenance mechanism used for maintaining the spherical check valve body is installed at the end, away from the spherical check valve body, of the connecting base. The detachable maintenance mechanism comprises a fastening assembly installed in the connecting base and a supporting assembly installed on the side, close to the spherical check valve body, of the fastening assembly, an adjusting box is installed on the side, close to the spherical check valve body, of the supporting assembly, and a limiting assembly is installed in the adjusting box. The spherical check valve with the high opening and closing efficiency can be conveniently disassembled and assembled, the interior of the valve body of the spherical check valve is maintained through the connecting base, meanwhile, sealing loosening can be prevented, and therefore the using effect of an existing spherical check valve during disassembly and assembly is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ball check valves, in particular to a ball check valve with high opening and closing efficiency. Background Art

[0002] The ball check valve is a valve structure that is widely used in pipeline systems. It is generally composed of a valve body, a valve seat and a ball. The ball is movably arranged in the valve body and uses its own gravity to form a sealing contact with the valve seat. When water enters the valve body, the ball breaks away from the valve seat under the action of the water flow pressure, that is, the ball check valve opens to let water flow. When water stops entering the valve body, the ball re-forms a sealing contact with the valve seat under the action of its own gravity, that is, the ball check valve closes.

[0003] At oilfield drilling or underground construction sites, oilfield ground anchors are needed to fix ground pipelines to ensure construction safety. When in use, the safety anchors are screwed into the ground manually or mechanically to serve as anchor points for drilling derrick cable wind ropes.

[0004] The existing ball check valve with high opening and closing efficiency is generally aimed at the existing ball check valve. The internal ball valve disc is moved by the buoyancy and impact force of the water flow. When the backflow water flow is small, the reaction of the ball valve disc is slow, and it has certain limitations and is being improved. For example, the authorized Chinese patent CN219692351U discloses a ball check valve with high opening and closing efficiency, which can be improved through the valve body, mounting flange, water inlet, water outlet, ball valve disc, groove, sealing gasket, limit plate, positioning plate, connecting hole, positioning rod, connecting ... The connecting spring and other structures are used in combination. When water flows in from the water inlet, the water flow impacts the spherical valve disc and increases the force-bearing surface through the groove, so that the spherical valve disc is forced to move, and the water flows through the limit plates to flow out to the water outlet. When the water flow stops, the elasticity of the connecting spring allows the spherical valve disc to be reset. When the water flows through the water outlet to the water inlet, the water flow will cause the spherical valve disc and the sealing gasket to fit each other to achieve non-return. The elasticity of the connecting spring is used to facilitate the resetting movement of the spherical valve disc, thereby achieving efficient opening and closing and improving practicality.

[0005] However, during the use of the ball check valve in the above-cited document, the sealing plate on the maintenance port of the check valve is mostly fixed with bolts. When it is necessary to maintain the inside of the check valve through the maintenance port, multiple bolts need to be removed, which is inconvenient and also requires special tools for tightening the bolts, which affects the maintenance efficiency and is not convenient for quick maintenance. As a result, the use effect of the existing ball check valve during disassembly and assembly needs to be improved. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] In view of the deficiencies in the prior art, the utility model provides a ball check valve with high opening and closing efficiency, which has the advantages of being able to effectively improve the use effect of the existing ball check valve during disassembly and assembly, and solves the problem of poor use effect of the existing ball check valve during disassembly and assembly.

[0008] (II) Technical solution

[0009] In order to achieve the above-mentioned purpose of effectively improving the use effect of the existing ball check valve when disassembling and assembling, the utility model provides the following technical solutions: a ball check valve with high opening and closing efficiency, comprising a ball check valve body and a connecting seat, one side of the connecting seat is fixedly connected to one side of the ball check valve body, and one end of the connecting seat away from the ball check valve body is equipped with a detachable maintenance mechanism for maintaining the ball check valve body;

[0010] The detachable maintenance mechanism includes a fastening component installed in the connecting seat and a supporting component installed on a side of the fastening component close to the valve body of the ball check valve, an adjusting box is installed on the side of the supporting component close to the valve body of the ball check valve, a limiting component is installed in the adjusting box, two groups of auxiliary moving components for limiting the moving distance of the limiting component are installed on both sides of the limiting component, and the two groups of auxiliary moving components are distributed in a mirror-symmetrical manner, the limiting component moves in the adjusting box through the auxiliary moving component, the limiting component limits the rotation of the fastening component, and a sealing component useful for sealing is installed on an end face of the connecting seat away from the valve body of the ball check valve.

[0011] Furthermore, the fastening assembly includes a sealing cover and a sealing block; one end of the sealing block away from the valve body of the spherical check valve is fixedly connected to one side of the sealing cover;

[0012] The outer side of the sealing block is provided with an external thread line, the inner side of the connecting seat is provided with an internal thread line, and the sealing block is threadedly connected with the internal thread line inside the connecting seat through the external thread line on the outer side;

[0013] The sealing block drives the sealing cover to move under the thrust of the outer thread rotation, and is connected to the connecting seat by pressing the sealing component.

[0014] Furthermore, the support assembly includes a support block and a connecting block; the side of the support block away from the ball check valve body is fixedly mounted on one side of the sealing cover by bolts, and the side of the connecting block close to the sealing cover is fixedly mounted on one side of the support block by bolts.

[0015] Furthermore, the limit assembly includes a pull rod, a pull handle, a moving block, an insert block and a return spring; the inner side of the return spring is sleeved on the outer side of the pull rod, one end of the pull rod passes through the adjustment box and is fixedly connected to one side of the pull handle, and the other end is fixedly installed on one side of the moving block by a bolt, and the other side of the moving block is fixedly connected to the insert block;

[0016] The pull handle is connected to the plug block fixed on the moving block through the pull rod. The pull handle pulls the pull rod to move, thereby driving the moving block to move, and the plug block follows the movement. The return spring contracts under the thrust generated by the movement of the moving block.

[0017] Furthermore, a slot for the plug-in block to fit and engage is provided on the outer side of the connecting seat.

[0018] Furthermore, the auxiliary moving component includes an adjusting block, a sliding block and an adjusting rail; one side of the adjusting block is fixedly mounted on the outer side of the moving block, and the other side is fixedly connected to one side of the sliding block, the outer side of the sliding block slides on the inner side of the adjusting rail, and one side of the adjusting rail is fixedly mounted on the inner wall of the adjusting box by bolts.

[0019] Furthermore, the sealing assembly includes a limiting protrusion and a sealing ring; one side of the limiting protrusion is fixedly connected to a side of the connecting seat away from the valve body of the spherical check valve, and the inner side of the sealing ring is fitted over the outer side of the limiting protrusion.

[0020] (III) Beneficial effects

[0021] Compared with the prior art, the utility model provides a ball check valve with high opening and closing efficiency, which has the following beneficial effects:

[0022] The ball check valve with high opening and closing efficiency can avoid the need for multiple mounting bolts for installation and fixing when sealing through the mutual use of the connecting seat and the detachable maintenance mechanism on the ball check valve body, and can be conveniently disassembled and assembled, and the inside of the ball check valve body can be maintained through the connecting seat, thereby improving the maintenance efficiency. The device is easy to operate and easy to use, and at the same time, it can also prevent the seal from loosening and improve the sealing effect of the connection, thereby effectively improving the use effect of the existing ball check valve when disassembling and assembling. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2 for Figure 1 A schematic cross-sectional view of the connection structure of the middle support block;

[0025] Figure 3 for Figure 2 A partial enlarged schematic diagram of the middle A part;

[0026] Figure 4 for Figure 1 A three-dimensional schematic diagram of the middle sealing block connection structure.

[0027] In the figure: 1 ball check valve body, 2 connecting seat, 300 detachable maintenance mechanism, 3011 sealing cover, 3012 sealing block, 3021 supporting block, 3022 connecting block, 303 adjusting box, 3041 pull rod, 3042 pull handle, 3043 moving block, 3044 insert block, 3045 return spring, 3051 adjusting block, 3052 sliding block, 3053 adjusting slide rail, 3061 limiting protrusion, 3062 sealing ring. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-4 The utility model provides a technical solution: a ball check valve with high opening and closing efficiency, comprising a ball check valve body 1 and a connecting seat 2, one side of the connecting seat 2 is fixedly connected to one side of the ball check valve body 1, and a detachable maintenance mechanism 300 for maintaining the ball check valve body 1 is installed at one end of the connecting seat 2 away from the ball check valve body 1;

[0030] Through the mutual cooperation between the connecting seat 2 and the detachable maintenance mechanism 300 on the ball check valve body 1, it is possible to avoid the need for multiple mounting bolts for installation and fixing during sealing, and it is possible to conveniently perform disassembly and assembly, and then perform internal maintenance on the ball check valve body 1 through the connecting seat 2, thereby improving maintenance efficiency. The device is easy to operate and easy to use, and at the same time, it can also prevent the seal from loosening and improve the sealing effect of the connection, thereby effectively improving the use effect of the existing ball check valve during disassembly and assembly.

[0031] In this embodiment, the detachable maintenance mechanism 300 is a structure for improving the convenience of assembly and disassembly, and further maintaining the interior of the ball check valve body 1 through the connecting seat 2 .

[0032] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the detachable maintenance mechanism 300 includes a fastening component installed in the connecting seat 2 and a supporting component installed on the side of the fastening component close to the ball check valve body 1, an adjusting box 303 is installed on the side of the supporting component close to the ball check valve body 1, a limiting component is installed in the adjusting box 303, two groups of auxiliary moving components for limiting the moving distance of the limiting component are installed on both sides of the limiting component, and the two groups of auxiliary moving components are distributed in a mirror-symmetrical manner, the limiting component moves in the adjusting box 303 through the auxiliary moving component, the limiting component limits the rotation of the fastening component, and a sealing component useful for sealing is installed on the end surface of the connecting seat 2 away from the ball check valve body 1.

[0033] It should be noted that the fastening assembly includes a sealing cover 3011 and a sealing block 3012; one end of the sealing block 3012 away from the ball check valve body 1 is fixedly connected to one side of the sealing cover 3011;

[0034] The outer side of the sealing block 3012 is provided with an external thread line, and the inner side of the connecting seat 2 is provided with an internal thread line. The sealing block 3012 is threadedly connected with the internal thread line inside the connecting seat 2 through the external thread line on the outer side;

[0035] The sealing block 3012 drives the sealing cover 3011 to move under the thrust of the outer thread rotation, and is connected to the connecting seat 2 by pressing the sealing component, so as to ensure the sealing performance and prevent the seal from loosening.

[0036] It can be understood that the support assembly includes a support block 3021 and a connecting block 3022; the side of the support block 3021 away from the ball check valve body 1 is fixedly installed on the side of the sealing cover 3011 by bolts, and the side of the connecting block 3022 close to the sealing cover 3011 is fixedly installed on the side of the support block 3021 by bolts, so as to be able to stably support the adjustment box 303 for limiting use.

[0037] In addition, the limit assembly includes a pull rod 3041, a pull handle 3042, a moving block 3043, an insert block 3044 and a reset spring 3045; the inner side of the reset spring 3045 is sleeved on the outer side of the pull rod 3041, one end of the pull rod 3041 passes through the adjustment box 303 and is fixedly connected to one side of the pull handle 3042, and the other end is fixedly installed on one side of the moving block 3043 by bolts, and the other side of the moving block 3043 is fixedly connected to the insert block 3044;

[0038] The pull handle 3042 is connected to the plug block 3044 fixed on the moving block 3043 through the pull rod 3041. The pull handle 3042 pulls the pull rod 3041 to move, thereby driving the moving block 3043 to move, and the plug block 3044 follows the movement. The return spring 3045 contracts under the thrust generated by the movement of the moving block 3043 to limit the rotation of the sealing cover 3011.

[0039] In this embodiment, a slot for the inserting block 3044 to fit and engage is provided on the outer side of the connecting seat 2 in order to achieve stable positioning.

[0040] It should also be noted that the auxiliary moving component includes an adjusting block 3051, a sliding block 3052 and an adjusting rail 3053; one side of the adjusting block 3051 is fixedly mounted on the outer side of the moving block 3043, and the other side is fixedly connected to one side of the sliding block 3052, the outer side of the sliding block 3052 slides on the inner side of the adjusting rail 3053, and one side of the adjusting rail 3053 is fixedly mounted on the inner wall of the adjusting box 303 by bolts, so as to limit the moving distance of the moving block 3043 while the auxiliary moving block 3043 moves stably.

[0041] It should be further explained that the sealing assembly includes a limiting protrusion 3061 and a sealing ring 3062; one side of the limiting protrusion 3061 is fixedly connected to the side of the connecting seat 2 away from the valve body 1 of the spherical check valve, and the inner side of the sealing ring 3062 is fitted onto the outer side of the limiting protrusion 3061 in order to improve the sealing effect at the connection between the sealing cover 3011 and the connecting seat 2.

[0042] The working principle of the above embodiment is:

[0043] When it is necessary to maintain the ball check valve body 1, first hold the pull handle 3042 and pull it in the direction away from the connecting seat 2. Since the moving block 3043 can only move in the adjusting box 303 under the sliding connection between the sliding block 3052 and the adjusting slide rail 3053 on the adjusting block 3051, and the reset spring 3045 is compressed by the squeezing force of the moving block 3043. When the moving block 3043 is separated from the slot, the sealing cover 3011 can be rotated and moved on the inner side of the connecting seat 2 under the thrust of the rotation of the outer thread of the sealing block 3012, the sealing block 3012 can be taken out. When it is necessary to install it, the above principle is reversed and the sealing ring 3062 is pressed against the connecting seat 2 through the sealing cover 3011. At this time, the position of the plug block 3044 corresponds to the slot, and the reset spring 3045 resets and pushes the plug block 3044 to move, so that the plug block 3044 can be fit and stuck in the slot.

[0044] Compared with the prior art: the ball check valve with high opening and closing efficiency can avoid the need for multiple mounting bolts for installation and fixing when sealing through the mutual cooperation between the connecting seat 2 on the ball check valve body 1 and the detachable maintenance mechanism 300, and can be conveniently disassembled and assembled, and then the internal part of the ball check valve body 1 can be maintained through the connecting seat 2, thereby improving the maintenance efficiency. The device is easy to operate and easy to use. At the same time, it can also prevent the seal from loosening and improve the sealing effect of the connection, thereby effectively improving the use effect of the existing ball check valve during disassembly and assembly, and solving the problem of poor use effect of the existing ball check valve during disassembly and assembly.

[0045] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0046] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A ball check valve with high opening and closing efficiency, comprising a ball check valve body (1) and a connecting seat (2), one side of the connecting seat (2) being fixedly connected to one side of the ball check valve body (1), characterized in that: A detachable maintenance mechanism (300) for maintaining the spherical check valve body (1) is installed at one end of the connection seat (2) away from the spherical check valve body (1); The detachable maintenance mechanism (300) comprises a fastening assembly installed in the connecting seat (2) and a supporting assembly installed on a side of the fastening assembly close to the ball check valve body (1); an adjusting box (303) is installed on a side of the supporting assembly close to the ball check valve body (1); a limit assembly is installed in the adjusting box (303); two groups of auxiliary moving assemblies for limiting the moving distance of the limit assembly are installed on both sides of the limit assembly, and the two groups of auxiliary moving assemblies are distributed in a mirror-symmetrical manner; the limit assembly moves in the adjusting box (303) through the auxiliary moving assembly; the limit assembly limits the rotation of the fastening assembly; and a sealing assembly for sealing is installed on an end face of the connecting seat (2) away from the ball check valve body (1).

2. A ball check valve with high opening and closing efficiency according to claim 1, characterized in that: The fastening assembly comprises a sealing cover (3011) and a sealing block (3012); one end of the sealing block (3012) away from the ball check valve body (1) is fixedly connected to one side of the sealing cover (3011); The outer side of the sealing block (3012) is provided with an external thread, the inner side of the connecting seat (2) is provided with an internal thread, and the sealing block (3012) is threadedly connected with the internal thread on the inner side of the connecting seat (2) via the external thread on the outer side; The sealing block (3012) drives the sealing cover (3011) to move under the thrust of the rotation of the outer thread, and is connected to the connecting seat (2) by pressing the sealing component.

3. A ball check valve with high opening and closing efficiency according to claim 2, characterized in that: The support assembly comprises a support block (3021) and a connection block (3022); a side of the support block (3021) away from the ball check valve body (1) is fixedly mounted on a side of the sealing cover (3011) by means of bolts, and a side of the connection block (3022) close to the sealing cover (3011) is fixedly mounted on a side of the support block (3021) by means of bolts.

4. A ball check valve with high opening and closing efficiency according to claim 1, characterized in that: The limit assembly comprises a pull rod (3041), a pull handle (3042), a moving block (3043), an insert block (3044) and a return spring (3045); the inner side of the return spring (3045) is sleeved on the outer side of the pull rod (3041); one end of the pull rod (3041) passes through the adjustment box (303) and is fixedly connected to one side of the pull handle (3042); the other end is fixedly installed on one side of the moving block (3043) by bolts; the other side of the moving block (3043) is fixedly connected to the insert block (3044); The pull handle (3042) is connected to the plug block (3044) fixed on the moving block (3043) through the pull rod (3041). The pull handle (3042) pulls the pull rod (3041) to move, thereby driving the moving block (3043) to move, and the plug block (3044) follows the movement. The return spring (3045) contracts under the thrust generated by the movement of the moving block (3043).

5. A ball check valve with high opening and closing efficiency according to claim 4, characterized in that: A slot for the insert block (3044) to fit and snap into is provided on the outer side of the connecting seat (2).

6. A ball check valve with high opening and closing efficiency according to claim 5, characterized in that: The auxiliary moving component comprises an adjusting block (3051), a sliding block (3052) and an adjusting slide rail (3053); one side of the adjusting block (3051) is fixedly mounted on the outer side of the moving block (3043), and the other side is fixedly connected to one side of the sliding block (3052); the outer side of the sliding block (3052) slides in contact with the inner side of the adjusting slide rail (3053), and one side of the adjusting slide rail (3053) is fixedly mounted on the inner side wall of the adjusting box (303) by means of bolts.

7. A ball check valve with high opening and closing efficiency according to claim 1, characterized in that: The sealing assembly comprises a limiting protrusion (3061) and a sealing ring (3062); one side of the limiting protrusion (3061) is fixedly connected to a side of the connecting seat (2) away from the ball check valve body (1), and the inner side of the sealing ring (3062) is fitted over the outer side of the limiting protrusion (3061).

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