High-stability double-ball rubber movable joint

Abstract

The utility model discloses a high-stability double-ball rubber movable joint which comprises joints, a tubular part is connected between the two joints, the tubular part is of a double-section structure, and a stability augmentation assembly is arranged between the two sections of tubular parts. According to the high-stability double-ball rubber movable joint, through cooperation of the joint, the tubular part and the stability increasing assembly, when the tubular part is installed through the joint and used, a user instantly closes a valve, and after a water hammer phenomenon is generated in an installation pipeline, a cavity ring is communicated with the interior of the installation pipeline; in other words, the internal pressure of the cavity ring is increased when the water hammer phenomenon occurs, the stress strength of the surface, close to the interior of the cavity ring, of the sliding block can be increased, the sliding block and the resistance sleeve can slide in the direction of the compression spring, the compression spring conducts compression, elastic potential energy is increased, and then the pressure generated by the water hammer phenomenon can be absorbed and buffered; the tremor strength of the joint connecting part is reduced, and the loosening probability of the connecting part is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of double-ball rubber joints, in particular to a highly stable double-ball rubber flexible joint. Background Art

[0002] Rubber joints are also called rubber tube flexible joints. According to the connection method, they can be divided into loose flange type, fixed flange type and threaded type; according to the structure, they can be divided into single sphere, double sphere, reducer, curved sphere and wind pressure coil, etc. It is a tubular rubber part composed of inner and outer layers of rubber, cord layer and wire ring, which is combined with metal flange or parallel joint loose sleeve after vulcanization. This product can reduce vibration and noise, and compensate for thermal expansion and contraction caused by temperature changes. It is widely used in various pipeline systems. It is a high elastic, high airtight, medium-resistant and weather-resistant pipeline joint.

[0003] During the installation and use of the double-ball rubber joints currently on the market, users often close the valves instantly. During this process, water hammer will occur inside the installation pipeline. The water hammer will cause the internal pressure of the double-ball rubber joint to increase instantly and produce vibrations. Over time, this will lead to loosening of the connection of the double-ball rubber joint. The stability of the double-ball rubber joint during installation and use needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to provide a highly stable double-ball rubber joint to solve the problem raised in the above background technology that during the installation and use of the double-ball rubber joint currently on the market, the user often closes the valve instantly, and during this process, water hammer phenomenon will occur inside the installation pipeline. The water hammer phenomenon will cause the internal pressure of the double-ball rubber joint to increase instantly and produce vibration. In the long run, it will cause the connection of the double-ball rubber joint to loosen, and the stability of the double-ball rubber joint during installation and use needs to be improved.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a highly stable double-ball rubber flexible joint, comprising a joint, a tubular member connected between the two joints, the tubular member is a double-section structure, and a stabilization component is arranged between the double-section tubular members, the stabilization component comprises a cavity ring, a vertical tube, a sleeve, a rubber ring, a slider, a resistance sleeve and a compression spring, the cavity ring is fixedly connected between the double-section tubular members, the outer wall of the cavity ring is annularly threaded with a plurality of vertical tubes, the outer wall of the vertical tube is fixedly sleeved with a sleeve toward the direction of the cavity ring, the surface of the sleeve toward the direction of the cavity ring is fixedly connected with a rubber ring, the contact surface of the rubber ring is tightly abutted against the cavity ring, the inner wall of the vertical tube is provided with a slider toward the direction of the cavity ring, the outer wall of the slider is fixedly sleeved with a resistance sleeve, the outer wall of the resistance sleeve is tightly abutted against the inner wall of the vertical tube, the inner top end of the vertical tube is fixedly connected with a compression spring, and the other end of the compression spring is fixedly connected to the contact surface of the slider.

[0006] Preferably, a convex ring is fixedly connected to the top of the vertical cylinder.

[0007] Preferably, groove edges are processed on the upper part of the outer wall of the vertical cylinder.

[0008] Preferably, an auxiliary component is provided on the inner side of the compression spring, and the auxiliary component includes a square tube, a square rod and a ball. The square tube is vertically located on the inner side of the compression spring, and the top of the square tube is fixedly connected to the contact surface of the vertical tube. A square rod is provided inside the square tube, and a plurality of balls are slidably connected to the outer wall of the square rod in a square ring shape from top to bottom. The balls are in contact with the inner wall of the square tube, and the bottom end of the square rod is fixedly connected to the contact surface of the slider.

[0009] Preferably, the center points of the square rod and the slider are located on the same horizontal vertical line.

[0010] Compared with the prior art, the beneficial effects of the utility model are: the highly stable double-ball rubber joint has the following advantages over the traditional technology:

[0011] Through the cooperation between the joint, the tubular part and the stabilizing component, the tubular part is installed through the joint and used. When the user closes the valve instantly, water hammer occurs inside the installation pipe. Since the cavity ring is interconnected with the inside of the installation pipe, the pressure inside the cavity ring will increase during the water hammer phenomenon, which can increase the force strength of the surface of the slider toward the inside of the cavity ring. The slider and the resistance sleeve will slide toward the compression spring, and the compression spring will increase its potential energy of elastic force, thereby absorbing and buffering the pressure generated by the water hammer phenomenon, reducing the vibration intensity of the joint connection, and reducing the chance of looseness at the connection, so as to improve the stability during installation and use.

[0012] Through the cooperation among the joints, tubular parts, stabilizing components and auxiliary components, when the slider and the resistance sleeve slide inside the vertical tube, the square rod can slide inside the square tube, and the balls can roll during this period, which greatly improves the smoothness of the square rod sliding inside the square tube. In this process, the square tube can play the role of sliding limit for the square rod, and due to the fixed connection relationship between the square rod and the slider, the stability of the slider when sliding up and down inside the vertical tube can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. Throughout the accompanying drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and the originals and elements are not necessarily drawn to scale.

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 for Figure 1 A front partial sectional view of the

[0016] Figure 3 for Figure 2 A top view of a partial cross-section of a square tube, square rod and ball.

[0017] In the figure: 1, joint, 2, tubular member, 3, stabilizing component, 301, cavity ring, 302, vertical tube, 303, sleeve ring, 304, rubber ring, 305, slider, 306, resistance sleeve, 307, compression spring, 4, convex ring, 5, groove edge, 6, auxiliary component, 601, square tube, 602, square rod, 603, ball. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-3The utility model provides a technical solution: a highly stable double-ball rubber flexible joint, including a joint 1, which is a flexible joint made of forgeable cast iron, also known as an oil-free joint, a kind of pipe fitting, with a three-dimensional polygonal design in appearance, and a three-dimensional thread engraved on the inner layer. The connection form is a fixed joint and a flexible female joint for matching use, and the two ends are connected to the corresponding pipe threads, and the middle is sealed with a PVC pad or a rubber pad. A tubular member 2 is connected between the two joints 1. The tubular member 2 is composed of an inner rubber layer, a reinforcing layer with multiple layers of scraped rubber nylon cord fabric, and an outer rubber layer. The tubular member 2 is a double-section structure, and the double-section tubular member 2 is connected between the two joints 1. A stabilization component 3 is provided, which includes a cavity ring 301, a vertical tube 302, a collar 303, a rubber ring 304, a slider 305, a resistance sleeve 306 and a compression spring 307. The cavity ring 301 is fixedly connected between the double-section tubular member 2. The interiors of the cavity ring 301, the tubular member 2 and the joint 1 are interconnected. The outer wall of the cavity ring 301 is annularly threaded with a plurality of vertical tubes 302. The interiors of the vertical tubes 302 and the interior of the cavity ring 301 are interconnected. The outer wall of the vertical tube 302 is fixedly sleeved with the collar 303 toward the cavity ring 301. The surface of the collar 303 toward the cavity ring 301 is fixedly connected with The rubber ring 304 is made of rubber material and has a certain flexibility, which can ensure the sealing performance of the connection between the vertical tube 302 and the cavity ring 301. The contact surface of the rubber ring 304 and the cavity ring 301 is tightly pressed. The inner wall of the vertical tube 302 is close to the cavity ring 301 and a slider 305 is provided. The outer wall of the slider 305 is fixedly sleeved with a resistance sleeve 306. The resistance sleeve 306 is made of nitrile rubber and has a certain flexibility. The outer wall of the resistance sleeve 306 is tightly pressed against the inner wall of the vertical tube 302. The pressing force of the resistance sleeve 306 and the inner wall of the vertical tube 302 is smaller than that of the compression spring 307 on the slider 305 has a downward thrust. A compression spring 307 is fixedly connected to the top of the inner part of the vertical tube 302. The elastic coefficient of the compression spring 307 is 5-15N / CM. The other end of the compression spring 307 is fixedly connected to the contact surface of the slider 305. A convex ring 4 is fixedly connected to the top of the top vertical tube 302. After the installation is completed, the convex ring 4 can be hoisted by a binding rope or the like during the installation operation, so as to reduce the hanging feeling of the tubular member 2 caused by the cavity ring 301 and other structures. A groove ridge 5 is processed on the upper part of the outer wall of the vertical tube 302. The groove ridge 5 can increase the friction force on the upper part of the outer wall of the vertical tube 302, which can facilitate the operator to apply force to rotate the vertical tube 302.

[0020] An auxiliary component 6 is provided on the inner side of the compression spring 307, and the auxiliary component 6 includes a square tube 601, a square rod 602 and a ball 603. The square tube 601 is vertically located on the inner side of the compression spring 307, and the top of the square tube 601 is fixedly connected to the contact surface of the vertical tube 302. A square rod 602 is provided inside the square tube 601. The outer wall of the square rod 602 is successively slidably connected with a plurality of balls 603 in a square ring shape from top to bottom. The balls 603 can roll but cannot be separated from the square rod 602. The balls 603 fit the inner wall of the square tube 601, and the bottom end of the square rod 602 is fixedly connected to the contact surface of the slider 305. The center points of the square rod 602 and the slider 305 are both located on the same horizontal vertical line, so that the square rod 602 can apply uniform force to the slider 305.

[0021] The highly stable double-ball rubber flexible joint is used. During use, after the tubular member 2 with the stabilizing component 3 is installed between the two pipes to be connected through the joint 1, the interior of the joint 1, the tubular member 2 and the cavity ring 301 can be used for the flow of the medium between the two pipes after the connection. During use, when the valve is closed instantly, water hammer occurs inside the installation pipe. Since the cavity ring 301 is interconnected with the interior of the installation pipe, the pressure inside the cavity ring 301 will increase during the water hammer phenomenon. The force strength of the slider 305 on the surface toward the interior of the cavity ring 301 will increase, and the slider 305 and the resistance sleeve 306 will slide in the direction of the compression spring 307. At this time, the square rod 602 can slide inside the square tube 601, and the ball 603 can roll during this period, which greatly improves the sliding of the square rod 602 inside the square tube 601. The square tube 601 can play a role of sliding limit to the square rod 602 during the process. Because of the fixed connection between the square rod 602 and the slider 305, the stability of the slider 305 when sliding inside the vertical tube 302 can be improved. During this period, the compression spring 307 is compressed and the elastic potential energy is increased, so that the pressure generated by the water hammer phenomenon can be absorbed and buffered, the vibration intensity at the connection of the joint 1 is reduced, and the probability of looseness at the connection is reduced, so that the stability during installation and use can be improved. As the internal pressure of the cavity ring 301 gradually tends to normal, due to the close relationship between the resistance sleeve 306 and the inner wall of the vertical tube 302, damping can be provided for the compression spring 307 when it rebounds, so that the compression spring 307 can rebound slowly, and then the internal pressure of the cavity ring 301 and the tubular member 2 will not be significantly increased during the rebound of the compression spring 307.

[0022] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0024] It should also be noted that, for ease of description, only the parts related to the relevant disclosure are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other; it should be noted that the concepts of "first", "second", etc. mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units; it should be noted that the modifications of "one" and "multiple" mentioned in the present disclosure are schematic and not restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more"; the names of the messages or information exchanged between multiple devices in the embodiments of the present disclosure are only for illustrative purposes, and are not used to limit the scope of these messages or information.

[0025] The machinery, parts and equipment used in the present invention are all conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A highly stable double-ball rubber joint, comprising a joint (1), characterized in that: A tubular member (2) is connected between the two joints (1); the tubular member (2) is a double-section structure, and a stabilization component (3) is provided between the double-section tubular members (2); The stabilization assembly (3) comprises a cavity ring (301), a vertical cylinder (302), a sleeve ring (303), a rubber ring (304), a slider (305), a resistance sleeve (306) and a compression spring (307); The cavity ring (301) is fixedly connected between the double-section tubular members (2); the outer wall of the cavity ring (301) is annularly threaded with a plurality of vertical tubes (302); the outer wall of the vertical tube (302) is fixedly sleeved with a collar (303) close to the cavity ring (301); the surface of the collar (303) close to the cavity ring (301) is fixedly connected with a rubber ring (304); the connection between the rubber ring (304) and the cavity ring (301) is The contact surfaces are tightly pressed against each other, a slider (305) is provided on the inner wall of the vertical cylinder (302) close to the direction of the cavity ring (301), a resistance sleeve (306) is fixedly sleeved on the outer wall of the slider (305), the outer wall of the resistance sleeve (306) is tightly pressed against the inner wall of the vertical cylinder (302), a compression spring (307) is fixedly connected to the inner top end of the vertical cylinder (302), and the other end of the compression spring (307) is fixedly connected to the contact surface of the slider (305).

2. A highly stable double-ball rubber joint according to claim 1, characterized in that: A convex ring (4) is fixedly connected to the top of the vertical cylinder (302).

3. A highly stable double-ball rubber joint according to claim 1, characterized in that: A groove edge (5) is processed on the upper portion of the outer wall of the vertical cylinder (302).

4. A highly stable double-ball rubber joint according to claim 1, characterized in that: An auxiliary component (6) is provided on the inner side of the compression spring (307); The auxiliary component (6) comprises a square tube (601), a square rod (602) and a ball (603); The square tube (601) is vertically located on the inner side of the compression spring (307), the top end of the square tube (601) is fixedly connected to the contact surface of the vertical tube (302), a square rod (602) is arranged inside the square tube (601), and a plurality of balls (603) are slidably engaged with the outer wall of the square rod (602) in a square ring shape from top to bottom, the balls (603) are in contact with the inner wall of the square tube (601), and the bottom end of the square rod (602) is fixedly connected to the contact surface of the slider (305).

5. A highly stable double-ball rubber joint according to claim 4, characterized in that: The center points of the square rod (602) and the slider (305) are both located on the same horizontal vertical line.

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