A multifunctional shaft-moving check valve

Abstract

When the valve body is opened, the cam is opened, and the cam is opened, so that the cam is opened and closed, and the cam is opened and closed, and the cam is opened and closed, and the cam is opened and closed. When the cam is opened, the cam is opened, and the cam is opened, the cam is opened and closed. When the cam is opened, the cam is opened, and the cam is opened, the cam is opened and closed. When the cam is opened, the cam is opened, and the cam is opened, the cam is opened and closed.

Description

Technical Field

[0001] The present invention relates to the technical field of water treatment, in particular to a multifunctional axially movable check valve. Background Art

[0002] A check valve is a valve with a circular disc as its opening and closing element. It relies on its own weight and the pressure of the medium to generate movement, preventing the backflow of the medium. It is an automatic valve and is also known as a non-return valve, one-way valve, reflux valve, or isolation valve. The disc movement is categorized as lift or swing. A lift check valve is similar in structure to a globe valve, lacking only the stem that drives the disc. The medium flows in from the inlet (lower side) and out from the outlet (upper side). When the inlet pressure is greater than the sum of the disc's weight and its flow resistance, the valve opens. Conversely, when the medium backflows, the valve closes. A swing check valve has an inclined disc that rotates about its axis, and its operating principle is similar to that of a lift check valve.

[0003] In actual use, lift check valves offer excellent sealing effects, but they can only be used in horizontal installations and are subject to significant environmental restrictions. Swing check valves, on the other hand, offer the advantage of being able to be installed vertically or horizontally, but suffer from a delayed closing response. When the disc is fully closed, fluid can already flow back into the inflow pipe. Furthermore, the reaction force on the disc during closing is large, which can easily lead to disc rupture. Furthermore, if impurities are present in the fluid medium, they will accumulate on the disc, significantly reducing the sealing effect. Cleaning requires disassembling the valve body, a cumbersome operation. Therefore, to avoid these shortcomings, we have developed a multifunctional, pivot-shift check valve. Summary of the Invention

[0004] The purpose of the present invention is to provide a multifunctional axially movable check valve to address the deficiencies of the prior art, and the multifunctional axially movable check valve can well solve the above-mentioned problems.

[0005] In order to achieve the above requirements, the technical solution adopted by the present invention to solve the technical problem is:

[0006] A multifunctional axially movable check valve is provided, including a valve body, and an inlet pipe and an outlet pipe connected to the valve body; the inlet pipe and the outlet pipe are coaxial; and also includes a sealing valve head coaxially rotatably arranged inside the valve body, and the front and rear ends of the sealing valve head are respectively coaxially provided with a first extension shaft and a second extension shaft, and the first extension shaft and the second extension shaft are both provided with a check platform arranged along the direction of fluid flow; the front end of the sealing valve head is provided with a conical first fitting position, and the inner wall of the valve body is recessed around the outlet of the inlet pipe to form a conical second fitting position, and a flexible scraper is also provided in the valve body above the sealing valve head, and the flexible scraper is in contact with the first fitting position, and a plurality of driving blades are circumferentially provided on the sealing valve head. When the fluid flows through the driving blades, the driving blades drive the sealing valve head to rotate.

[0007] The multifunctional axially movable check valve described in the present invention is characterized in that the first extension shaft and the second extension shaft extend into the inlet pipe and the outlet pipe respectively, and the check platforms on the first extension shaft and the second extension shaft are respectively located in the inlet pipe and the outlet pipe.

[0008] The multifunctional axially movable check valve described in the present invention is characterized in that a shaft sleeve is provided on the sliding sleeve of the second extension shaft, and the shaft sleeve is fixedly connected to the valve body through a connecting frame; when the first fitting position and the second fitting position are in a separated state, the sealing valve head rests on the shaft sleeve, and the flexible scraper is fitted on the first fitting position; when the first fitting position and the second fitting position are in a fitted state, the flexible scraper is separated from the first fitting position.

[0009] The multifunctional axially movable check valve of the present invention is characterized in that the flexible scraper is fixedly connected to the valve body via a fixing frame.

[0010] In the multifunctional axially movable check valve of the present invention, the check platform is in a frustum shape with its smaller end facing the direction of fluid inflow.

[0011] The multifunctional axially movable check valve described in the present invention, wherein the valve body includes a valve cavity body and a valve cover body cooperating with the valve cavity body; the inlet pipe and the outlet pipe are respectively connected to the front and rear ends of the valve cavity body.

[0012] The beneficial effects of the present invention are that the check valve can be used not only in vertical installation occasions, but also in horizontal installation occasions, and is less restricted by the environment. Moreover, through the check platform arranged on the first extension shaft and the second extension shaft, whether it is the backflow of fluid in the inlet pipe or the backflow of fluid in the outlet pipe, it can respond to the backflow fluid in advance, and can be triggered in advance to make the sealing valve head close the inlet pipe, thereby ensuring that the sealing valve head can close the inlet pipe in time and quickly, and prevent the liquid in the outlet pipe from flowing back into the inlet pipe. At the same time, since the first extension shaft and the second extension shaft are both arranged on the sealing valve head, the structural strength of the sealing valve head can be greatly enhanced. In addition, due to the early response of the check platform, the sealing valve head can close the inlet pipe in advance, and the force of the backflow fluid on the sealing valve head can be prevented from reaching a peak, thereby reducing the risk of the sealing valve head being broken. In addition, the blade is driven by the fluid to rotate the sealing valve head, and then the impurities and dirt on the first fitting position of the sealing valve head are scraped off by the flexible scraper to ensure the tightness of the first fitting position at the second fitting position, thereby ensuring the sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below with reference to the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive efforts.

[0014] Figure 1 It is a schematic diagram of the internal structure of the multifunctional axial displacement check valve of the present invention.

[0015] Figure 2 It is a front view of the sealing valve head of the multifunctional axially movable check valve of the present invention. DETAILED DESCRIPTION

[0016] The terms "first," "second," "third," and "fourth," etc., in the specification, claims, and accompanying drawings of the present invention are used to distinguish between different items, not to describe a specific order. Furthermore, the terms "including," "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements, but may optionally include steps or elements not listed, or may optionally include other steps or elements inherent to the process, method, product, or apparatus.

[0017] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute a separate or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0018] "Multiple" refers to two or more. "And / or" describes the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0019] Moreover, the terms "up, down, left, right, upper end, lower end, longitudinal" and the like indicating directions are all based on the posture and position of the device or apparatus described in this solution during normal use.

[0020] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the following will be a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work shall fall within the scope of protection of the present invention.

[0021] The multifunctional shaft-moving check valve of the preferred embodiment of the present invention is as follows Figure 1-2As shown, it includes a valve body 1, and an inlet pipe 2 and an outlet pipe 3 connected to the valve body 1; the inlet pipe 2 and the outlet pipe 3 are coaxial; it also includes a sealing valve head 4 that is coaxially rotatable inside the valve body 1. Specifically, the sealing valve head 4 is cylindrical and its diameter is larger than the diameter of the inlet pipe 2. The front and rear ends of the sealing valve head 4 are coaxially provided with a first extension shaft 5 and a second extension shaft 6, respectively. The first extension shaft 5 and the second extension shaft 6 are both provided with a non-return platform 7 arranged along the direction of fluid flow; the front end of the sealing valve head 4 is provided with a conical first fitting position 8. The inner wall of the valve body 1 is concavely formed with a conical second fitting position 9 around the outlet of the inflow pipe 2. The first fitting position 8 and the second fitting position 9 are both annular and of equal diameter. A flexible scraper 10 is also provided above the sealing valve head 4 in the valve body 1. The flexible scraper 10 fits in the first fitting position 8. A plurality of drive blades 11 are provided on the sealing valve head 4 in the circumferential direction. When the fluid flows through the drive blades 11, the drive blades 11 drive the sealing valve head 4 to rotate. This check valve can be used not only for vertical installation but also for horizontal installation. The sealing valve head 4 is convenient to use and can be used for sealing purpose, and it is suitable for occasions where the environment is less restricted, and the check platform 7 arranged on the first extension shaft 5 and the second extension shaft 6 can respond to the reflux fluid in advance regardless of whether it is the reflux of the fluid in the inflow pipe 2 or the reflux of the fluid outflow pipe 3, and can be triggered in advance to make the sealing valve head 4 close the inflow pipe 2, thereby ensuring that the sealing valve head 4 can close the inflow pipe 2 quickly and in time to prevent the liquid in the outflow pipe 3 from flowing back into the inflow pipe 2. At the same time, since the first extension shaft 5 and the second extension shaft 6 are both arranged on the sealing valve head 4, the structural strength of the sealing valve head 4 can be greatly enhanced. In addition, due to the early response of the check platform 7, the sealing valve head 4 can close the inflow pipe 2 in advance to prevent the force of the reflux fluid on the sealing valve head 4 from reaching a peak, thereby reducing the risk of the sealing valve head 4 being broken; in addition, the sealing valve head 4 is rotated by driving the blade 11 by the fluid, and then the impurities and dirt on the first fitting position 8 on the sealing valve head 4 are scraped off by the flexible scraper 10 to ensure the tightness of the fitting between the first fitting position 8 and the second fitting position 9 to ensure the sealing performance.

[0022] Preferably, the first extension shaft 5 and the second extension shaft 6 extend into the inlet pipe 2 and the outlet pipe 3 respectively, and the check platform 7 on the first extension shaft 5 and the second extension shaft 6 is located in the inlet pipe 2 and the outlet pipe 3 respectively, so as to improve the response speed of the check platform 7 to the backflow of the fluid, and push the sealing valve head 4 in time to close the inlet pipe 2 in advance.

[0023] Preferably, a sleeve 12 is provided on the sliding sleeve of the second extension shaft 6, and the sleeve 12 is fixedly connected to the valve body 1 through a connecting frame 13; when the first fitting position 8 and the second fitting position 9 are in a separated state, the sealing valve head 4 rests on the sleeve 12, and the flexible scraper 10 is fitted on the first fitting position 8. When the first fitting position 8 and the second fitting position 9 are in a fitted state, the flexible scraper 10 is separated from the first fitting position 8, thereby realizing that the first fitting position 8 can be cleaned when the sealing valve head 4 is opened, and the flexible scraper 10 is separated from the first fitting position 8 when closed, and the flexible scraper 10 is automatically engaged and disengaged with the first by the flow of fluid, and when the valve body 1 is in a normally open state, the first fitting position 8 can be kept free of dirt at all times.

[0024] Preferably, the flexible scraper 10 is fixedly connected to the valve body 1 via a fixing frame 14 to ensure that the flexible scraper 10 can be separated at the first fitting position 8 when the sealing valve head 4 is closed.

[0025] Preferably, the check valve 7 is in the shape of a cone and its smaller end faces the direction of fluid inflow. Specifically, the smaller end of the check valve 7 on the first extension shaft 5 has the same diameter as the first extension shaft 5, and the smaller end of the check valve 7 on the second extension shaft 6 has the same diameter as the second extension shaft 6, so as to reduce the resistance encountered by the fluid when flowing through the check valve 7 in the forward direction.

[0026] Preferably, the valve body 1 includes a valve cavity body 101 and a valve cover body 102 that cooperates with the valve cavity body 101; an inner cavity 1a is formed inside the valve cavity body 101, and the inlet pipe 2 and the outlet pipe 3 are both connected to the inner cavity 1a. The sealing valve head 4 is arranged in the inner cavity 1a, and the inlet pipe 2 and the outlet pipe 3 are respectively connected to the front and rear ends of the valve cavity body. The valve cover body is provided to facilitate maintenance and regular replacement of the flexible scraper 10.

[0027] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A multifunctional axial-shift check valve, characterized in that:

18. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 17, wherein said linking rod and said adjusting base are pivotally connected to each other with a bolt, and said bolt has a round shank to contact with said linking rod. said linking rod having a check valve in said valve seat and said adjusting base. said check valve having a check valve in said position. The first extension shaft and the second extension shaft extend into the inlet pipe and the outlet pipe respectively, and the anti-return platforms on the first extension shaft and the second extension shaft are located in the inlet pipe and the outlet pipe respectively; The sliding sleeve on the second extension shaft is provided with a shaft sleeve, and the shaft sleeve is fixedly connected to the valve body through a connecting frame; when the first fitting position and the second fitting position are in a separated state, the sealing valve head abuts against the shaft sleeve, and the flexible scraper is in contact with the first fitting position; when the first fitting position and the second fitting position are in a fitted state, the flexible scraper is separated from the first fitting position; The anti-return platform is in a frustum shape with its smaller end facing the direction of fluid inflow.

2. The multifunctional axial-sliding check valve according to claim 1, characterized in that: The flexible scraper is fixedly connected to the valve body via a fixing frame.

3. The multifunctional axial-sliding check valve according to claim 1, characterized in that: The valve body includes a valve cavity body and a valve cover body matched with the valve cavity body; the inflow pipe and the outflow pipe are respectively connected to the front and rear ends of the valve cavity body.

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