Large bore slow closing check valve

Abstract

The utility model discloses a large -caliber slow -closing check valve, including the conveying pipe, the mounting plate of solid setting in the left side of conveying pipe inside, the support plate of solid setting in the right side of conveying pipe inside. The utility model discloses through the design of the flow guide function, can shunt the water flow in conveying and then relieves the impact force when water flow delivery, thus can know, through using the device in the application, greatly reduced the impact force when water flow delivery, namely improved the service life of the device. Through the design of mechanical linkage, only staff can make motor linkage rotating sleeve rotation by starting motor, so that the drainage hole in the rotating sleeve and the communication hole in the support sleeve slowly dislocation operation, thus can know, through using the device in the application, the water flow in conveying pipe inside is in the slow -closing state.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically to a large-diameter slow-closing check valve. Background Technology

[0002] The main function of a check valve is to prevent backflow of the medium, protect the pump and drive motor from reversing, and prevent leakage of the medium in the container. It is widely used in pipeline systems to ensure unidirectional flow of the medium.

[0003] A patent search revealed a device, such as the one with publication number "CN221800699U," titled "Slow-closing Check Valve." This device fails to divert the water flow, resulting in significant impact forces during water transport. Over time, these impact forces damage the internal mechanical components of the check valve, affecting its lifespan. Therefore, this invention designs a large-diameter slow-closing check valve to address these issues. Utility Model Content

[0004] The purpose of this invention is to provide a large-diameter slow-closing check valve to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a large-diameter slow-closing check valve, comprising a delivery pipe; an mounting plate fixedly disposed on the left side inside the delivery pipe; a support plate fixedly disposed on the right side inside the delivery pipe; a support sleeve fixedly installed on the middle right side outside the mounting plate, and the support sleeve is fixedly inserted through the support plate; six partitions fixedly disposed outside the support sleeve, and the partitions are fixedly connected to the delivery pipe, the mounting plate, and the support plate; a flow guiding assembly assembled inside the mounting plate and the support sleeve, which can divert water flow into the interior of the support sleeve; and a drainage assembly assembled inside the support sleeve, which can discharge the diverted water flow from the right end of the delivery pipe.

[0006] Preferably, the flow guiding component includes six flow guiding holes integrally disposed inside the mounting plate, with an angle of 60 degrees between each pair of flow guiding holes; and six connecting holes integrally disposed inside the support sleeve, with an angle of 60 degrees between each pair of connecting holes.

[0007] Preferably, the drainage assembly includes a rotating sleeve rotatably disposed inside the support sleeve; and a drainage hole integrally disposed inside the rotating sleeve.

[0008] Preferably, the number of drainage holes is six, the angle between any two drainage holes is 60 degrees, and the cross-section of each drainage hole is the same as the cross-section of the connecting hole.

[0009] Preferably, a pivot pin is fixedly provided on the outer left side of the pivot sleeve, the pivot pin rotatably passes through the mounting plate, and a worm gear is fixedly sleeved on the outside of the pivot pin.

[0010] Preferably, a drive assembly is provided on the outside of the conveying pipe. The drive assembly controls the rotating pin to rotate. The drive assembly includes a motor fixed on the top left side of the conveying pipe; a worm fixed on the bottom of the motor, and the worm rotates through the conveying pipe and meshes with the teeth of a worm wheel; and a retaining sleeve fixed on the inside left side of the conveying pipe. The retaining sleeve is rotatably sleeved on the outside of the worm and is fixedly connected to the mounting plate. The retaining sleeve and the guide hole are misaligned.

[0011] Preferably, the motor is fitted with a protective cover, which is fixedly connected to the conveying pipe, and the protective cover has a number of clearance holes integrally formed inside.

[0012] Preferably, a controller is fixed to the outer wall of the protective cover. The controller is connected to the motor via a wire. The motor is a geared servo motor, and the motor stops running after rotating 30 degrees.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model, through its flow-guiding design, can divert water flow during transportation, thereby alleviating the impact force during water transportation. Thus, by using the device in this application, the impact force during water transportation is greatly reduced, which improves the service life of the device.

[0015] 2. Through the mechanical linkage design, this utility model only requires the operator to turn on the motor, which will cause the motor to rotate in conjunction with the rotating sleeve. This causes the drain hole in the rotating sleeve to slowly misalign with the connecting hole in the support sleeve. Thus, by using the device in this application, the water flow inside the delivery pipe is kept in a slowly closed state. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a front perspective view of a large-diameter slow-closing check valve according to this utility model;

[0018] Figure 2 This is a perspective view of the internal structure of a large-diameter slow-closing check valve according to this utility model;

[0019] Figure 3 A 3D view of the support sleeve;

[0020] Figure 4 This is a three-dimensional diagram of the rotating case.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1-Conveying pipe, 2-Mounting plate, 3-Support plate, 4-Support sleeve, 5-Baffle, 6-Flow guiding assembly, 7-Drainage assembly, 601-Flow guiding hole, 602-Connecting hole, 701-Rotating sleeve, 702-Drainage hole, 8-Rotating pin, 9-Worm gear, 10-Motor, 11-Worm, 12-Side sleeve, 13-Protective cover, 14-Leaning hole, 15-Controller. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1

[0025] A preferred embodiment of the large-diameter slow-closing check valve provided by this utility model is, for example... Figures 1 to 4 As shown: A large-diameter slow-closing check valve includes a delivery pipe 1; a mounting plate 2 fixed inside the left side of the delivery pipe 1; a support plate 3 fixed inside the right side of the delivery pipe 1; a support sleeve 4 fixedly installed on the right side of the mounting plate 2, and the support sleeve 4 is fixedly inserted through the support plate 3; six partitions 5 fixed outside the support sleeve 4, and the partitions 5 are fixedly connected to the delivery pipe 1, the mounting plate 2 and the support plate 3; and a flow guiding component 6 assembled inside the mounting plate 2 and the support sleeve 4, which can divert water flow into the interior of the support sleeve 4.

[0026] The flow guiding component 6 includes six flow guiding holes 601 integrally disposed inside the mounting plate 2, with an angle of 60 degrees between each pair of flow guiding holes 601; and six connecting holes 602 integrally disposed inside the support sleeve 4, with an angle of 60 degrees between each pair of connecting holes 602.

[0027] It should be noted that existing large-diameter slow-closing check valves still have certain shortcomings in actual use. They cannot transport water in a diversion state, which causes damage to the internal mechanical components of the check valve due to the large impact force during water transport, thus reducing the service life of the check valve.

[0028] In this embodiment, water first enters the left side of the inside of the delivery pipe 1. Several guide holes 601 divert the water flow into the position between the mounting plate 2 and the support plate 3. In addition, the design of the partition 5 can prevent the water flow diverted between the support plate 3 and the mounting plate 2 from accumulating. At this time, the water flow in the support plate 3 and the mounting plate 2 is then discharged into the inside of the support sleeve 4 through several connecting holes 602. In the above way, the impact force generated when the water flows is relieved, and the mechanical parts inside the device are protected.

[0029] In a further preferred embodiment of this utility model, a drainage component 7 is assembled inside the support sleeve 4. The drainage component 7 can discharge the diverted water flow from the right end of the delivery pipe 1. The drainage component 7 includes a rotating sleeve 701 rotatably disposed inside the support sleeve 4; and six drainage holes 702 integrally disposed inside the rotating sleeve 701. The angle between any two drainage holes 702 is 60 degrees, and the cross-section of the drainage hole 702 is the same as the cross-section of the connecting hole 602.

[0030] In this embodiment, the drain hole 702 and the connecting hole 602 are initially aligned. The diverted water flows through the connecting hole 602 and drain hole 702 into the interior of the rotating sleeve 701. Simultaneously, as the water flows into the interior of the rotating sleeve 701, several diverted water flows along the axial direction of the rotating sleeve 701. That is, the diverted water flows into the interior of the rotating sleeve 701 are in a convection state, which reduces the impact force of the water flowing into the interior of the rotating sleeve 701. The water flowing into the interior of the rotating sleeve 701 is collected and then discharged from the support sleeve 4 through the right end of the conveying pipe 1.

[0031] Example 2

[0032] Based on Example 1, a preferred embodiment of the large-diameter slow-closing check valve provided by this utility model is as follows: Figures 1 to 4As shown: A pivot pin 8 is fixedly installed on the left side of the rotating sleeve 701. The pivot pin 8 rotatably passes through the mounting plate 2. A worm gear 9 is fixedly sleeved on the outside of the pivot pin 8. A drive assembly is provided on the outside of the conveying pipe 1. The drive assembly controls the pivot pin 8 to rotate. The drive assembly includes a motor 10 fixedly installed on the top left side of the conveying pipe 1; a worm 11 fixedly installed at the bottom of the motor 10, and the worm 11 rotatably passes through the conveying pipe 1, with the worm 11 meshing with the worm gear 9; and a retaining sleeve 12 fixedly installed on the left side inside the conveying pipe 1. The retaining sleeve 12 is rotatably sleeved on the outside of the worm gear 11, and the retaining sleeve 12 is fixedly connected to the mounting plate 2. The retaining sleeve 12 and the guide hole 601 are misaligned. The motor 10 is covered with a protective cover 13, which is fixedly connected to the conveying pipe 1. The protective cover 13 has several clearance holes 14 integrally provided inside. The outer wall of the protective cover 13 is fixedly equipped with a controller 15, which is connected to the motor 10 through a wire. The motor 10 is a geared servo motor, and the motor 10 stops running after rotating 30 degrees.

[0033] In this embodiment, when it is necessary to stop the water flow, the operator starts the motor 10. The motor 10 drives the worm gear 11 to rotate the worm wheel 9, which in turn rotates the pivot pin 8 and the rotating sleeve 701. After the motor 10 and the pivot pin 701 rotate 30 degrees, the motor 10 stops running. At this time, the drain hole 702 and the connecting hole 602 are misaligned. In this way, the water flow in the delivery pipe 1 is slowly closed. The baffle 12 prevents the water flow from contacting the worm gear 11, the worm wheel 9, and the pivot pin 8. The protective cover 13 isolates the motor 10 from the outside world, and the clearance hole 14 connects the internal space of the cover to the outside world, ensuring the stability of heat dissipation when the motor 10 is in use.

[0034] In summary, this application, through its flow-guiding design, can divert water flow during transportation, thereby mitigating the impact force during water transport and significantly reducing it, thus extending the service life of the device. Through a mechanical linkage design, the drain hole inside the rotating sleeve and the connecting hole inside the support sleeve are slowly misaligned, thus keeping the water flow inside the transport pipe in a gradually closed state.

Claims

1. A large-diameter slow-closing check valve, characterized in that, include: Delivery pipe (1); mounting plate (2) fixed inside the left side of the delivery pipe (1); A support plate (3) is fixed inside the right side of the conveying pipe (1); A support sleeve (4) is fixedly installed on the middle of the right side of the mounting plate (2), and the support sleeve (4) is fixedly inserted through the support plate (3). A partition (5) is fixedly installed outside the support sleeve (4). There are six partitions (5), and the partitions (5) are fixedly connected to the conveying pipe (1), the mounting plate (2) and the support plate (3). The flow guiding component (6) assembled inside the mounting plate (2) and the support sleeve (4) can divert water flow into the interior of the support sleeve (4) in a split state; The drainage assembly (7) installed inside the support sleeve (4) can discharge the diverted water flow from the right end of the delivery pipe (1).

2. The large-diameter slow-closing check valve according to claim 1, characterized in that: The flow guiding component (6) includes: The guide holes (601) are integrally set inside the mounting plate (2), and there are six guide holes (601), with an angle of 60 degrees between each pair of guide holes (601); A connecting hole (602) is integrally set inside the support sleeve (4), and there are six connecting holes (602), with an angle of 60 degrees between each pair of connecting holes (602).

3. The large-diameter slow-closing check valve according to claim 1, characterized in that: The drainage assembly (7) includes: Rotate the rotating sleeve (701) located inside the support sleeve (4). The drain hole (702) is integrally provided inside the rotating sleeve (701).

4. The large-diameter slow-closing check valve according to claim 3, characterized in that: The number of drainage holes (702) is six, the angle between each pair of drainage holes (702) is 60 degrees, and the cross-section of each drainage hole (702) is the same as the cross-section of the connecting hole (602).

5. The large-diameter slow-closing check valve according to claim 3, characterized in that: A pivot pin (8) is fixedly provided on the left side of the outer side of the pivot sleeve (701). The pivot pin (8) rotates through the mounting plate (2). A worm gear (9) is fixedly sleeved on the outside of the pivot pin (8).

6. The large-diameter slow-closing check valve according to claim 1, characterized in that: A drive assembly is provided on the outside of the conveying pipe (1). The drive assembly controls the rotating pin (8) to rotate. The drive assembly includes: A motor (10) is fixed on the top left side of the conveying pipe (1); A worm (11) is fixed at the bottom of the motor (10), and the worm (11) rotates through the conveying pipe (1), and the worm (11) meshes with the teeth of the worm wheel (9); A retaining sleeve (12) is fixedly installed inside the left side of the conveying pipe (1). The retaining sleeve (12) is rotatably sleeved on the outside of the worm (11), and the retaining sleeve (12) is fixedly connected to the mounting plate (2). The retaining sleeve (12) and the guide hole (601) are misaligned.

7. The large-diameter slow-closing check valve according to claim 6, characterized in that: The motor (10) is covered with a protective cover (13), which is fixedly connected to the conveying pipe (1). The protective cover (13) has several clearance holes (14) integrally provided inside.

8. The large-diameter slow-closing check valve according to claim 7, characterized in that: The outer wall of the protective cover (13) is fixed with a controller (15), which is connected to the motor (10) by a wire. The motor (10) is a geared servo motor, and the motor (10) stops running after rotating 30 degrees.

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