Novel hydraulic structure of check valve of circulating water pump

Abstract

The utility model discloses a novel circulating water pump check valve hydraulic structure which comprises a valve body, the bottom end of the valve body is fixedly communicated with a water inlet pipe, the right side face of the valve body is fixedly communicated with a water outlet pipe, a T-shaped groove is formed in the inner wall of the valve body, a stop valve clack is connected to the inner wall of the T-shaped groove in a clamped mode, and an oil storage cylinder barrel is fixedly embedded in the upper surface of the valve body. The inner wall of the oil storage cylinder barrel is fixedly connected with a working cylinder barrel, and the inner wall of the bottom end of the working cylinder barrel is fixedly connected with a piston oil seal seat. Through the working cylinder barrel, the oil storage cylinder barrel, the base compression valve seat, the piston block, the oil through hole, the rebound check block and the elastic extrusion spring, the piston block and the oil through hole can be used for limiting and blocking hydraulic oil, hydraulic oil damping rebound of the piston valve rod is achieved, the elastic compression force borne by the elastic extrusion spring is effectively reduced, and the service life of the piston valve rod is prolonged. Damage fatigue of the elastic extrusion spring is reduced, effective protection of the elastic extrusion spring is achieved, and effective and long-term use of the water pump check valve is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of water pumps, in particular to a hydraulic structure of a check valve for a new type of circulating water pump. Background Art

[0002] A circulating water pump is a machine for transporting fluids or increasing their pressure. It is mainly used in chemical plants for transporting, reacting, absorbing, analyzing, and circulating acid-base liquids. The circulating water pump is applicable to sewage, waste gas, electroplating, painting, printed circuit boards, chemical plants, photovoltaic, diamond wire, pharmaceutical, printing and dyeing, semiconductor, cleaning equipment and other fields. It is also applicable to the transportation of clear water, seawater, and chemical medium liquids with acidity and alkalinity. Among them, the check valve is a valve that only allows the medium to flow in one direction and prevents reverse flow, and it is an indispensable equipment component in the circulating water pump.

[0003] At present, when some water pump check valves are in use, generally, an elastic spring is used to elastically hold the check valve flap to achieve the sealing of the check valve. However, long-term water pressure impact is likely to cause fatigue damage to the elastic spring, resulting in ineffective sealing, and further affecting the safe and stable use of the check valve. For this reason, we propose a hydraulic structure of a check valve for a new type of circulating water pump to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a hydraulic structure of a check valve for a new type of circulating water pump to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A hydraulic structure of a check valve for a new type of circulating water pump, including a valve body. The bottom end of the valve body is fixedly communicated with a water inlet pipe, the right side surface of the valve body is fixedly communicated with a water outlet pipe. The inner wall of the valve body is provided with a T-shaped groove, and a stop valve flap is clamped on the inner wall of the T-shaped groove. The upper surface of the valve body is fixedly inlaid with an oil storage cylinder barrel, the inner wall of the oil storage cylinder barrel is fixedly connected with a working cylinder barrel, the bottom inner wall of the working cylinder barrel is fixedly connected with a piston oil seal seat, the inner top wall of the working cylinder barrel is fixedly inlaid with a base compression valve seat. The inside of the working cylinder barrel is provided with a piston valve rod. The bottom end of the piston valve rod penetrates through the piston oil seal seat and is fixedly connected with the top end of the stop valve flap. The outer surface of the piston valve rod is fixedly connected with a rebound block and a piston block. The piston block is located above the rebound block. The upper surface of the piston block is provided with oil through holes arranged in a circular pattern. The inner top wall of the working cylinder barrel is fixedly connected with an elastic extrusion spring, and the bottom end of the elastic extrusion spring is fixedly connected with the upper surface of the piston block.

[0007] In a further embodiment, the outer surface of the bottom end of the piston valve rod is fixedly connected with a stabilizing disc, and the bottom surface of the stabilizing disc is fixedly connected with the upper surface of the stop valve flap.

[0008] In a further embodiment, connection flanges are fixedly connected to the ends of the water inlet pipe and the water outlet pipe that are away from each other, and a set of mounting holes are formed in the side surfaces of the two connection flanges that are away from each other.

[0009] In a further embodiment, two protective sleeves are fixedly connected to the outer surface of the valve body, and the protective sleeves are made of rubber.

[0010] In a further embodiment, a model label is fixedly connected to the front surface of the valve body, and the model label is located in the middle of the valve body.

[0011] In a further embodiment, lifting rings are fixedly connected to the left and right side surfaces of the valve body, and the lifting rings are made of metal.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] By means of the working cylinder barrel, the oil storage cylinder barrel, the base compression valve seat, the piston block, the oil passage hole, the rebound stopper and the elastic extrusion spring provided in the device, the hydraulic oil can be limited and blocked by the piston block and the oil passage hole, the hydraulic damping rebound of the piston valve rod can be realized, the elastic compression force on the elastic extrusion spring can be effectively reduced, the damage fatigue degree of the elastic extrusion spring can be reduced, the effective protection of the elastic extrusion spring can be realized, and the effective and long-term use of this water pump check valve can be facilitated. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 FIG. is an overall three-dimensional structure diagram of the hydraulic structure of the new type of circulating water pump check valve.

[0015] Figure 2 FIG. is an internal dissection structure diagram of the valve body in the hydraulic structure of the new type of circulating water pump check valve.

[0016] Figure 3 FIG. is a sectional view of the top view of the oil storage cylinder barrel in the hydraulic structure of the new type of circulating water pump check valve.

[0017] Figure 4 FIG. is a rear view of the valve body in the hydraulic structure of the new type of circulating water pump check valve.

[0018] In the figure: 1, valve body; 2, model label; 3, protective sleeve; 4, oil storage cylinder barrel; 5, lifting ring; 6, water outlet pipe; 7, mounting hole; 8, water inlet pipe; 9, connection flange; 10, T-shaped groove; 11, stop valve flap; 12, stabilizing disc; 13, rebound stopper; 14, oil passage hole; 15, elastic extrusion spring; 16, base compression valve seat; 17, working cylinder barrel; 18, piston block; 19, piston oil seal seat; 20, piston valve rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the 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. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0020] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific circumstances.

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with 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 the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-4, in the present utility model, a hydraulic structure of a new type of check valve for a circulating water pump includes a valve body 1. A water inlet pipe 8 is fixedly communicated with the bottom end of the valve body 1, and a water outlet pipe 6 is fixedly communicated with the right side surface of the valve body 1. A T-shaped groove 10 is formed in the inner wall of the valve body 1, and a stop valve flap 11 is clamped on the inner wall of the T-shaped groove 10. An oil storage cylinder 4 is fixedly embedded in the upper surface of the valve body 1. A working cylinder 17 is fixedly connected to the inner wall of the oil storage cylinder 4. A piston oil seal seat 19 is fixedly connected to the bottom inner wall of the working cylinder 17. A base compression valve seat 16 is fixedly embedded in the inner top wall of the working cylinder 17. A piston valve rod 20 is arranged inside the working cylinder 17. The bottom end of the piston valve rod 20 penetrates through the piston oil seal seat 19 and is fixedly connected to the top end of the stop valve flap 11. A rebound stop block 13 and a piston block 18 are fixedly connected to the outer surface of the piston valve rod 20. The piston block 18 is located above the rebound stop block 13. A group of oil through holes 14 are formed in an annular arrangement on the upper surface of the piston block 18. An elastic extrusion spring 15 is fixedly connected to the inner top wall of the working cylinder 17. The bottom end of the elastic extrusion spring 15 is fixedly connected to the upper surface of the piston block 18.

[0023] A stabilizing disc 12 is fixedly connected to the outer surface of the bottom end of the piston valve rod 20, and the bottom surface of the stabilizing disc 12 is fixedly connected to the upper surface of the stop valve flap 11, which can increase the stability of the stop valve flap 11 and enhance the sealing effect of the check valve. Connecting flanges 9 are fixedly connected to the mutually remote ends of the water inlet pipe 8 and the water outlet pipe 6. A group of mounting holes 7 are formed in the mutually remote side surfaces of the two connecting flanges 9, which can facilitate the installation and connection of this water pump check valve.

[0024] Two protective sleeves 3 are fixedly connected to the outer surface of the valve body 1. The protective sleeves 3 are made of rubber, which can protect the outside of the valve body 1 and facilitate the safe use of this water pump check valve. A model label 2 is fixedly connected to the front surface of the valve body 1. The model label 2 is located in the middle of the valve body 1, which can elaborate on the model of the valve body 1 and facilitate the installer's understanding and use of this water pump check valve. Hoisting rings 5 are fixedly connected to the left and right side surfaces of the valve body 1. The hoisting rings 5 are made of metal, which can conveniently lift the valve body 1 and facilitate the installation operation of this water pump check valve.

[0025] The working principle of the present utility model is:

[0026] During use, first use a hoisting device to lift this water pump check valve through the lifting ring 5, install the water inlet pipe 8 to the outlet end of the circulating water pump through the connecting flange 9, and connect the water outlet pipe 6 to the port of the drain pipe to complete the installation of this water pump check valve. During use, the elastic extrusion spring 15 squeezes the piston valve rod 20 and the stop valve flap 11 downward and extends into the interior of the T-shaped groove 10 to achieve the water stop effect of this check valve. When the circulating water pump works to pump water, the liquid enters the water inlet pipe 8 and impacts the stop valve flap 11 upward to lift the stop valve flap 11 upward, and the liquid enters the water outlet pipe 6 to complete drainage. At the same time, during the drainage process, the hydraulic oil compressed up and down inside the oil storage cylinder 4 and the working cylinder 17 enters and exits the piston block 18 and the oil passage hole 14, and the hydraulic oil rebound damping of the piston valve rod 20 is realized, so as to achieve the hydraulic oil rebound buffer protection for the elastic extrusion spring 15, reduce the elastic compression fatigue degree of the elastic extrusion spring 15, and reduce the damage of the elastic extrusion spring 15, thereby realizing the safe and stable use of this water pump check valve.

[0027] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0028] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. The new circulating water pump check valve hydraulic structure is characterized by: The invention comprises a valve body (1), the bottom end of the valve body (1) is fixedly connected to a water inlet pipe (8), the right side of the valve body (1) is fixedly connected to a water outlet pipe (6), the inner wall of the valve body (1) is provided with a T-shaped groove (10), the inner wall of the T-shaped groove (10) is clamped with a stop valve flap (11), the upper surface of the valve body (1) is fixedly inlaid with an oil storage cylinder (4), the inner wall of the oil storage cylinder (4) is fixedly connected to a working cylinder (17), the inner wall of the bottom end of the working cylinder (17) is fixedly connected to a piston oil seal seat (19), the inner top wall of the working cylinder (17) is fixedly inlaid with a base compression valve seat (16), and the working cylinder (17) is fixedly inlaid with a base compression valve seat (16). A piston valve rod (20) is provided inside the working cylinder (17). The bottom end of the piston valve rod (20) passes through the piston oil seal seat (19) and is fixedly connected to the top end of the stop valve disc (11). The outer surface of the piston valve rod (20) is fixedly connected to a rebound block (13) and a piston block (18). The piston block (18) is located above the rebound block (13). The upper surface of the piston block (18) is provided with oil holes (14) arranged in an annular manner. The inner top wall of the working cylinder (17) is fixedly connected to an elastic extrusion spring (15). The bottom end of the elastic extrusion spring (15) is fixedly connected to the upper surface of the piston block (18).

2. The novel circulating water pump check valve hydraulic structure according to claim 1 is characterized in that: The outer surface of the bottom end of the piston valve stem (20) is fixedly connected to a stabilizing plate (12), and the bottom surface of the stabilizing plate (12) is fixedly connected to the upper surface of the stop valve flap (11).

3. The novel hydraulic structure of the check valve of the circulating water pump according to claim 1 is characterized in that: The ends of the water inlet pipe (8) and the water outlet pipe (6) that are away from each other are fixedly connected with a connecting flange (9), and the side surfaces of the two connecting flanges (9) that are away from each other are each provided with a group of mounting holes (7).

4. The novel hydraulic structure of the check valve of the circulating water pump according to claim 1 is characterized in that: Two protective sleeves (3) are fixedly connected to the outer surface of the valve body (1), and the protective sleeves (3) are made of rubber.

5. The novel circulating water pump check valve hydraulic structure according to claim 1 is characterized in that: A model mark (2) is fixedly connected to the front side of the valve body (1), and the model mark (2) is located in the middle of the valve body (1).

6. The novel hydraulic structure of the check valve of the circulating water pump according to claim 1 is characterized in that: The left and right side surfaces of the valve body (1) are both fixedly connected with lifting rings (5), and the lifting rings (5) are made of metal.

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