Manually-controlled one-way valve

Abstract

An adjusting block is installed in a liquid outlet cavity, one side of the adjusting block is connected with a sleeve, the interior of the sleeve is connected with a lead screw mechanism, one end of the lead screw mechanism is connected with a rotating handle mechanism, a pressing limiting inserting rod is arranged in a valve body, the pressing limiting inserting rod comprises an inserting rod body, and the inserting rod body is connected with the rotating handle mechanism. One end of the inserting rod is connected with one side of a mounting plate, the mounting plate is located in a moving groove formed in the valve body, the other side of the mounting plate is connected with a moving plate through a connecting block, one side of the moving plate is connected with the inner wall of one side of the moving groove through a plurality of first springs, and the moving plate is slidably connected with the interior of the moving groove; and one side of the connecting block is connected with a pull handle arranged on the outer side of the valve body through a driving rod. According to the manually-controlled one-way valve, in order to solve the problem that due to the fact that a manually-rotated rotating handle of an existing one-way valve is prone to autorotation, the blocking force of a valve element is accidentally changed, a pressing limiting insertion rod used in cooperation with a rotating handle mechanism is arranged in a valve body.

Description

Technical Field

[0001] The utility model relates to the technical field of check valves, and particularly to a manually controlled check valve. Background Technique

[0002] For a check valve, the fluid can only flow along the inlet, and the medium at the outlet cannot flow back. A check valve is also called a non-return valve or a reflux valve, which is used in a hydraulic system to prevent the reverse flow of oil, or in a pneumatic system to prevent the reverse flow of compressed air. There are two types of check valves: straight-through type and right-angle type. The straight-through check valve is installed on the pipeline by threaded connection. The right-angle check valve has three forms: threaded connection, plate connection and flange connection.

[0003] After retrieval, it is found that in the prior art, such as a hydraulic check valve with a filtering structure disclosed in Publication No. CN218377843U, an inlet chamber and an outlet chamber are respectively arranged inside the valve body, and the diameter of the outlet chamber is larger than that of the inlet chamber. A filtering mechanism is detachably installed at the inlet of the inlet chamber. An outlet is opened on one side of the outlet chamber, and an adjusting block is installed inside the outlet chamber. One side of the adjusting block is connected to a threaded rotating rod, and the other side of the adjusting block is connected to the inner side of the moving groove through a spring. A blocking block is installed outside the moving groove, and a valve core is connected to one side of the anti-blocking block. For this hydraulic check valve with a filtering structure, by detachably installing a filtering mechanism at the inlet of the inlet chamber, and the filtering mechanism is composed of a hollow cylinder and a filter screen. The filter screen can filter impurities in the oil, and at the same time, the hollow cylinder can be taken out regularly to replace the filter screen to prevent the filter screen from being blocked, solving the problem that the traditional hydraulic check valve lacks an oil filtering device.

[0004] In summary, the existing check valve can filter impurities in the oil and manually adjust the blocking force of the valve core. However, the rotating handle of the existing check valve that is manually rotated is prone to self-rotation, resulting in an accidental change in the blocking force of the valve core. Therefore, a manually controlled check valve is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a manually controlled check valve to solve the problem that the rotating handle of the existing check valve that is manually rotated is prone to self-rotation, resulting in an accidental change in the blocking force of the valve core as proposed in the above background technique.

[0006] To achieve the above object, the present utility model provides the following technical solution: a manually controlled one-way valve, including a valve body, an inlet liquid cavity and an outlet liquid cavity are respectively arranged inside the valve body, and the cavity diameter of the outlet liquid cavity is larger than that of the inlet liquid cavity. An outlet is opened on one side of the outlet liquid cavity, and an adjusting block is installed inside the outlet liquid cavity. One side of the adjusting block is connected to a sleeve, and a lead screw mechanism is connected inside the sleeve. One end of the lead screw mechanism penetrates to the outside of the valve body and is connected to a rotary handle mechanism, and a pressing limit insertion rod used in cooperation with the rotary handle mechanism is arranged inside the valve body. The pressing limit insertion rod includes an insertion rod, and one end of the insertion rod is connected to one side of a mounting plate. The mounting plate is located inside a moving groove opened on the valve body, and the other side of the mounting plate is connected to a moving plate through a connecting block. One side of the moving plate is connected to the inner wall of one side of the moving groove through a plurality of groups of first springs, and the moving plate is slidably connected to the inside of the moving groove. One side of the connecting block is connected to a pull handle arranged outside the valve body through a driving rod.

[0007] Preferably, the other side of the adjusting block is connected to the inner side of the moving cylinder groove through a second spring. A blocking block is installed outside the moving cylinder groove, and a valve core is connected to one side of the blocking block.

[0008] Through the above technical solution: it is convenient to adjust the blocking force of the valve core.

[0009] Preferably, both the moving cylinder groove and the adjusting block are slidably connected to the inside of the outlet liquid cavity.

[0010] Through the above technical solution: it is convenient for the moving cylinder groove and the adjusting block to move.

[0011] Preferably, a stabilizing plate slidably connected to the sleeve is arranged inside the outlet liquid cavity.

[0012] Through the above technical solution: improve the moving stability of the sleeve.

[0013] Preferably, the rotary handle mechanism includes a rotary handle body, and a limit ring is installed on one side of the rotary handle body. A plurality of insertion rod grooves used in cooperation with the insertion rod are opened on the limit ring, and a plurality of anti-slip bumps are arranged on the outside of the rotary handle body.

[0014] Through the above technical solution: prevent the rotary handle from rotating self.

[0015] Preferably, a moving through groove used in cooperation with the driving rod is opened on the valve body.

[0016] Through the above technical solution: facilitate the movement of the driving rod.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: for this manually controlled one-way valve, the present device solves the problem that the rotating handle of the existing one-way valve for manual rotation is prone to self-rotation, resulting in accidental changes in the plugging force of the valve core. By arranging a pressing limit insertion rod inside the valve body for cooperating with the rotating handle mechanism, the pressing limit insertion rod includes an insertion rod, and one end of the insertion rod is connected to one side of the mounting plate. The mounting plate is located inside the moving groove opened in the valve body, and the other side of the mounting plate is connected to the moving plate through a connecting block. One side of the moving plate is connected to the inner wall of one side of the moving groove through several groups of first springs, and the moving plate is slidably connected inside the moving groove. One side of the connecting block is connected to a pull handle arranged outside the valve body through a driving rod. When the rotating handle mechanism rotates to a suitable position and then the pull handle is released, under the action of the first spring, the insertion rod moves, and the insertion rod is inserted into a group of insertion rod grooves, so as to limit the position of the rotating handle mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic front sectional structure view of the whole of the present utility model;

[0019] Figure 2 is a schematic structure view of the rotating handle mechanism of the present utility model;

[0020] Figure 3 is a schematic diagram of the positional relationship of the anti-slip bumps of the present utility model;

[0021] Figure 4 For the present utility model Figure 1 is an enlarged structure view at position A in the present utility model.

[0022] In the figure: 1, valve body; 2, liquid inlet cavity; 3, liquid outlet cavity; 4, liquid outlet; 5, adjusting block; 6, sleeve; 7, lead screw mechanism; 8, stabilizing plate; 9, rotating handle mechanism; 901, rotating handle body; 902, limiting ring; 903, insertion rod groove; 904, anti-slip bump; 10, pressing limit insertion rod; 1001, insertion rod; 1002, mounting plate; 1003, connecting block; 1004, moving plate; 1005, first spring; 1006, driving rod; 1007, pull handle; 11, second spring; 12, moving cylinder groove; 13, blocking block; 14, valve core. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1-4, the present utility model provides a technical solution: a manually controlled one-way valve. Inside the valve body 1, a liquid inlet cavity 2 and a liquid outlet cavity 3 are respectively arranged, and the cavity diameter of the liquid outlet cavity 3 is larger than that of the liquid inlet cavity 2. A liquid outlet 4 is opened on one side of the liquid outlet cavity 3, and an adjusting block 5 is installed inside the liquid outlet cavity 3.

[0025] Specifically, one side of the adjusting block 5 is connected to a sleeve 6, and the inside of the sleeve 6 is connected to a lead screw mechanism 7. One end of the lead screw mechanism 7 penetrates to the outside of the valve body 1 and is connected to a turning handle mechanism 9. And inside the valve body 1, there is a pressing limit insertion rod 10 that cooperates with the turning handle mechanism 9. The pressing limit insertion rod 10 includes an insertion rod 1001, and one end of the insertion rod 1001 is connected to one side of a mounting plate 1002. The mounting plate 1002 is located inside a moving groove opened on the valve body 1. And the other side of the mounting plate 1002 is connected to a moving plate 1004 through a connecting block 1003. One side of the moving plate 1004 is connected to the inner wall of one side of the moving groove through a plurality of groups of first springs 1005, and the moving plate 1004 is slidably connected inside the moving groove. One side of the connecting block 1003 is connected to a pull handle 1007 arranged outside the valve body 1 through a driving rod 1006.

[0026] Specifically, the other side of the adjusting block 5 is connected to the inside of a moving cylinder groove 12 through a second spring 11. A blocking block 13 is installed outside the moving cylinder groove 12, and a valve core 14 is connected to one side of the blocking block 13.

[0027] In a further embodiment, a sealing layer is provided on the outside of the moving cylinder groove 12 to prevent oil from seeping out from the periphery of the moving cylinder groove 12 in the later stage.

[0028] In a further embodiment, both the moving cylinder groove 12 and the adjusting block 5 are slidably connected to the inside of the liquid outlet cavity 3.

[0029] In a further embodiment, the diameter of one end of the valve core 14 close to the liquid inlet cavity 2 is smaller than the cavity diameter of the liquid inlet cavity 2, the diameter of the end of the valve core 14 far from the liquid inlet cavity 2 is equal to the cavity diameter of the liquid inlet cavity 2, the diameter of the blocking block 13 is larger than the cavity diameter of the liquid inlet cavity 2, and the diameter of the blocking block 13 is smaller than the cavity diameter of the liquid outlet cavity 3.

[0030] In a further embodiment, a stabilizing plate 8 that is slidably connected to the sleeve 6 is arranged inside the liquid outlet cavity 3.

[0031] Specifically, the turning handle mechanism 9 includes a turning handle body 901. And a limiting ring 902 is installed on one side of the turning handle body 901. A plurality of insertion rod grooves 903 that cooperate with the insertion rod 1001 are opened on the limiting ring 902. A plurality of anti-slip convex points 904 are arranged on the outside of the turning handle body 901.

[0032] When the turning handle mechanism 9 rotates to a proper position, the pulling handle 1007 is released at this time. Under the action of the first spring 1005, the inserting rod 1001 moves, and the inserting rod 1001 inserts into a group of inserting rod grooves 903, so as to limit the position of the turning handle mechanism 9.

[0033] In a further embodiment, a moving through groove for cooperating with the driving rod 1006 is formed on the valve body 1.

[0034] During use, when no oil fluid flows into the liquid inlet cavity 2, the valve core 14 blocks one end of the liquid inlet cavity 2 at this time to prevent the oil fluid from flowing back. When oil fluid flows into the liquid inlet cavity 2, under the pressure action of the oil fluid, the valve core 14 moves to compress the second spring 11, and the oil fluid flows into the liquid outlet cavity 3 and finally flows out from the liquid outlet 4. When it is necessary to adjust the blocking force of the valve core 14 on one end of the liquid inlet cavity 2, rotate the turning handle mechanism 9, so that it drives the adjusting block 5 to move through the lead screw mechanism 7, change the extrusion degree of the second spring 11, and thus change the blocking force of the valve core 14 on one end of the liquid inlet cavity 2.

[0035] The orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and is a simplified description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation on the protection scope of the present invention.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A manually controlled one-way valve, comprising a valve body (1), wherein a liquid inlet chamber (2) and a liquid outlet chamber (3) are respectively arranged inside the valve body (1), and the cavity diameter of the liquid outlet chamber (3) is larger than that of the liquid inlet chamber (2). A liquid outlet (4) is formed on one side of the liquid outlet chamber (3), and an adjusting block (5) is installed inside the liquid outlet chamber (3), and it is characterized in that: One side of the adjusting block (5) is connected to the sleeve (6), and the inside of the sleeve (6) is connected to the lead screw mechanism (7). One end of the lead screw mechanism (7) penetrates to the outside of the valve body (1) and is connected to the handle mechanism (9). A pressing limit insertion rod (10) that cooperates with the handle mechanism (9) is arranged inside the valve body (1). The pressing limit insertion rod (10) includes an insertion rod (1001), and one end of the insertion rod (1001) is connected to one side of the mounting plate (1002). The mounting plate (1002) is located inside the moving groove opened in the valve body (1), and the other side of the mounting plate (1002) is connected to the moving plate (1004) through a connecting block (1003). One side of the moving plate (1004) is connected to the inner wall of one side of the moving groove through a plurality of groups of first springs (1005), and the moving plate (1004) is slidably connected to the inside of the moving groove. One side of the connecting block (1003) is connected to a pull handle (1007) arranged outside the valve body (1) through a driving rod (1006).

2. The one-way valve manually controlled according to claim 1, characterized in that: The other side of the adjusting block (5) is connected to the inner side of the moving cylinder groove (12) through a second spring (11). A blocking block (13) is installed on the outside of the moving cylinder groove (12), and a valve core (14) is connected to one side of the blocking block (13).

3. The one-way valve manually controlled according to claim 2, characterized in that: Both the moving cylinder groove (12) and the adjusting block (5) are slidably connected to the inside of the liquid outlet cavity (3).

4. A one-way valve controlled manually according to claim 1, characterized in that: A stabilizing plate (8) that is slidably connected to the sleeve (6) is arranged inside the liquid outlet cavity (3).

5. A one-way valve controlled manually according to claim 1, characterized in that: The handle mechanism (9) includes a handle body (901), and a limit ring (902) is installed on one side of the handle body (901). A plurality of insertion rod grooves (903) that cooperate with the insertion rod (1001) are opened on the limit ring (902). A plurality of anti-slip bumps (904) are arranged on the outside of the handle body (901).

6. A one-way valve manually controlled according to claim 1, characterized in that: A moving through groove that cooperates with the driving rod (1006) is opened on the valve body (1).

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