CN217272064U - Novel support floating ball valve ball body - Google Patents

Abstract

A novel support floating ball valve ball body comprises a valve core body, wherein a fluid channel is formed in the valve core body, a round block is arranged on the valve core body, a concave hole is formed in the round block, a first circular ring block is arranged on the round block, a connecting shaft is arranged above the first circular ring block, a first circular ring hole is formed in the connecting shaft, a first interval between the inner contour surface of the first circular ring hole and the inner hole contour surface of the first circular ring block is smaller than or equal to a second interval between the outer contour surface of the bottom of the connecting shaft and the contour surface of the concave hole, and a universal joint is arranged between the bottom surface of the connecting shaft and the bottom surface of the concave hole; be equipped with the cylinder on the case body, it has second ring hole to open on the cylinder, is equipped with second ring piece on the second ring hole, and interval three more than or equal to the interval between the interior profile face of first ring hole of the interior profile face of second ring hole and the hole profile face of second ring piece is one with the interval between the hole profile face of first ring piece, the utility model discloses can make the ball valve spheroid float and move to can ensure better leakproofness, be worth popularizing and applying.

Description

Novel support floating ball valve ball body

Technical Field

The utility model belongs to the technical field of a high-end device and specifically relates to an opening and closing piece, especially a new-type support floating ball valve spheroid.

Background

The valve core of the floating ball valve is floating, and under the action of medium pressure, the ball body can generate certain displacement and is tightly pressed on the sealing surface of the outlet section, so that the outlet end is sealed.

However, the existing ball valve rotates in a fixed position mode, a ball body can deflect and a valve rod can deform under high medium pressure, the deformation and bending amount of the valve rod is increased after a long time, the normal opening and closing use of the ball valve can be influenced, the ball valve can be seriously failed, and the maintenance cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve above-mentioned prior art's shortcoming, provide one kind can make the ball valve spheroid float the skew, not only increase sealed effect, can avoid the new-type support floating ball valve spheroid of valve rod by pressure deformation moreover, satisfied when the enterprise uses to the valve, the leakproofness is good, long service life's demand.

The utility model provides a technical scheme that its technical problem adopted: the novel support floating ball valve body comprises a valve core body, wherein a fluid channel is formed in the valve core body, a round block is fixed at the top end of the valve core body, a concave hole is formed in the round block, a first round block is fixed at the top end of the round block, an inner hole of the first round block is communicated with the concave hole, a connecting shaft is arranged above the first round block, a placing block with a section larger than that of the connecting shaft is fixed at the top end of the connecting shaft, a first round hole is formed in the outer contour surface of the connecting shaft, the first round block is inserted in the first round hole, a first distance between the inner contour surface of the first round hole and the inner hole contour surface of the first round block is smaller than or equal to a second distance between the outer contour surface at the bottom of the connecting shaft and the concave hole contour surface, and a universal joint is fixed between the bottom surface of the connecting shaft and the bottom surface of the concave hole; a cylinder is fixed at the bottom of the valve core body, a second circular ring hole is formed in the cylinder, a second circular ring block is inserted into the second circular ring hole, and the distance three between the inner contour surface of the second circular ring hole and the inner hole contour surface of the second circular ring block is larger than or equal to the distance I between the inner contour surface of the first circular ring hole and the inner hole contour surface of the first circular ring block. The fluid channel is used for fluid to pass through; the first circular ring block, the first circular ring hole, the cylinder, the second circular ring hole and the second circular ring block have the effects that longitudinal support can be provided for the valve core body, and the situation that the lower half part of the sealing ring is abraded too fast to enable the sealing ring to be replaced in advance and the problem of cost rise caused by frequent replacement of the sealing ring due to the fact that most of gravity of the valve core body presses the lower half part of the sealing ring is avoided; the universal joint has the effects that when a high-pressure medium impacts the valve core body, the valve core body can deviate and is tightly pressed on the sealing ring on the fluid blocking side, at the moment, the valve rod cannot be bent due to the deviation of the valve core body, and the universal joint can deviate and drive the universal joint to rotate through the valve rod, so that the valve core body is driven to rotate together; the first distance between the inner contour surface of the first circular ring hole and the inner hole contour surface of the first circular ring block is smaller than or equal to the second distance between the outer contour surface of the bottom of the connecting shaft and the contour surface of the concave hole, and the third distance between the inner contour surface of the second circular ring hole and the inner hole contour surface of the second circular ring block is larger than or equal to the first distance between the inner contour surface of the first circular ring hole and the inner hole contour surface of the first circular ring block, so that the transverse offset can be given to the valve core body, and the valve core body can move by the first distance displacement amount; the connecting shaft and the placing block have the functions of placing and fixing the connecting shaft and the placing block on the valve body of the valve, so that the ball body can be supported and rotated.

Further perfecting, the top of first ring piece and the top surface of second ring piece all are provided with self-lubricating metal layer. The self-lubricating metal layer has the functions of reducing the offset and resistance in rotation of the valve core body and reducing the difficulty in rotation and offset of the valve core body; the self-lubricating metal layer is made of tin bronze material.

Further perfect, the cylinder is opened there is circular track groove, installs a set of ball in the circular track inslot, is fixed with on the cylinder to be used for the spacing holder in circular track groove department of ball. The circular track groove, the balls and the retainer have the effects that the valve core body can be supported and can roll through the balls when the valve core body rotates, so that the resistance of the valve on opening and closing the pipeline is greatly reduced, and the pipeline is opened and closed more laborsavingly by the balls.

The utility model discloses profitable effect is: the utility model has the advantages of structural design ingenious, it is reasonable, utilize fluid passage, be used for the fluid to pass through, utilize first ring piece, first ring hole, the cylinder, second ring hole, second ring piece can give valve element body longitudinal support, the most the latter half of having avoided valve element body to press at the sealing washer, thereby cause the latter half wearing and tearing of sealing washer to change at the excessive speed and make the sealing washer change in advance, cause often to change the sealing washer and the problem of the cost-push that causes, utilize universal joint to make when the valve element body is strikeed to high pressure medium, valve element body can take place the skew and compress tightly on the sealing washer that the side was blocked to the fluid, at this moment, valve element body skew can not the bending valve rod, universal joint can follow the skew and drive universal joint through the valve rod rotatory, thereby it is rotatory to drive valve element body in the lump, interval between the interior profile face that utilizes first ring hole and the interior profile face of first ring piece is less than or equal to connect axle bottom profile face and outer wheel Interval two between the shrinkage pool profile surface, interval three more than or equal to between the interior profile surface of second ring hole and the hole profile surface of second ring piece and the effect of interval one between the interior profile surface of first ring hole and the hole profile surface of first ring piece are, can give case body lateral offset, and the case body can remove the interval displacement volume of interval one, the utility model discloses structural design is ingenious, reasonable, can make the case body receive fluid high pressure impact when, can squint the unsteady sealing washer department that compresses tightly in the side is blocked to the fluid, and is sealed more firm, prevents that the medium from revealing to case body skew floats can not make the valve rod by the buckling, thereby ensures the normal use of ball valve, and long service life is worth popularizing and applying.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of a portion of the area A of FIG. 1;

fig. 3 is a state diagram of the present invention when mounted on a ball valve.

Description of the reference numerals: the valve core comprises a valve core body 1, a fluid channel 1-1, a circular block 2, a concave hole 2-1, a circular ring block 2-2, a connecting shaft 3, a placing block 3a, a first circular ring hole 3-1, a first interval a, a second interval b, a third interval c, a universal joint 4, a cylinder 5, a second circular ring hole 5-1, a circular track groove 5-2, a second circular ring block 6, a self-lubricating metal layer 7, a ball 8 and a holder 9.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

With reference to the accompanying drawings: the novel support floating ball valve body comprises a valve core body 1, wherein a fluid channel 1-1 is formed in the valve core body 1, a round block 2 is fixed at the top end of the valve core body 1, a concave hole 2-1 is formed in the round block 2, a first circular block 2-2 is fixed at the top end of the round block 2, an inner hole of the first circular block 2-2 is communicated with the concave hole 2-1, a connecting shaft 3 is arranged above the first circular block 2-2, a placing block 3a with a section larger than that of the connecting shaft 3 is fixed at the top end of the connecting shaft 3, a first circular hole 3-1 is formed in the outer contour surface of the connecting shaft 3, the first circular block 2-2 is inserted in the first circular hole 3-1, a distance a between the inner contour surface of the first circular hole 3-1 and the inner hole contour surface of the first circular block 2-2 is smaller than or equal to a distance b between the bottom contour surface of the connecting shaft 3 and the concave hole 2-1, a universal joint 4 is fixed between the bottom surface of the connecting shaft 3 and the bottom surface of the concave hole 2-1; the bottom of the valve core body 1 is fixed with a cylinder 5, the cylinder 5 is provided with a second circular ring hole 5-1, a second circular ring block 6 is inserted into the second circular ring hole 5-1, and the distance "ic" between the inner contour surface of the second circular ring hole 5-1 and the inner hole contour surface of the second circular ring block 6 is greater than or equal to the distance "a" between the inner contour surface of the first circular ring hole 3-1 and the inner hole contour surface of the first circular ring block 2-2.

The top end of the first circular ring block 2-2 and the top surface of the second circular ring block 6 are both provided with a self-lubricating metal layer 7.

The cylinder 5 is provided with a circular track groove 5-2, a group of balls 8 are arranged in the circular track groove 5-2, and the cylinder 5 is fixed with a retainer 9 for limiting the balls 8 at the circular track groove 5-2.

The utility model discloses a theory of operation: when the ball valve needs to be closed, the valve rod is driven to rotate and the connecting shaft 3 is driven to rotate, at the moment, the valve core body 1 rotates, the support of each ball 8 and the transverse displacement limit of the first circular ring block 2-2 and the second circular ring hole 5-1 ensure that the sealing ring towards the medium blocking side continuously deflects in the process that the valve core body 1 rotates to close the pipeline, the offset of the valve core body 1 is offset by driving the offset of the universal joint 4 in the process that the valve core body 1 rotates to deflect, so that the valve rod is ensured to drive the connecting shaft 3 to rotate in a vertical state, the valve rod cannot be driven by medium pressure to press and bend to cause the failure of the ball valve, and the medium pressure is higher when the valve core body 1 rotates in place and closes the pipeline, the valve core body 1 deflects and tightly presses the sealing ring at the medium blocking side, the better the sealing effect, is worth popularizing and applying.

While the invention has been shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the appended claims.

Claims (3)

1. A novel support floating ball valve ball body comprises a valve core body (1), wherein a fluid channel (1-1) is formed in the valve core body (1), and the novel support floating ball valve ball body is characterized in that: the valve core is characterized in that a round block (2) is fixed to the top end of the valve core body (1), a concave hole (2-1) is formed in the round block (2), a first ring block (2-2) is fixed to the top end of the round block (2), the inner hole of the first ring block (2-2) is communicated with the concave hole (2-1), a connecting shaft (3) is arranged above the first ring block (2-2), a placing block (3a) with a cross section larger than that of the connecting shaft (3) is fixed to the top end of the connecting shaft (3), a first ring hole (3-1) is formed in the outer contour face of the connecting shaft (3), the first ring block (2-2) is inserted in the first ring hole (3-1), and one (a) of the interval between the inner contour face of the first ring hole (3-1) and the inner contour face of the first ring block (2-2) is smaller than or equal to the outer contour face of the bottom of the connecting shaft (3) and the concave hole (2-1) A second interval (b) is formed between the profile surfaces, and a universal joint (4) is fixed between the bottom surface of the connecting shaft (3) and the bottom surface of the concave hole (2-1); the valve core is characterized in that a cylinder (5) is fixed at the bottom of the valve core body (1), a second circular ring hole (5-1) is formed in the cylinder (5), a second circular block (6) is inserted into the second circular ring hole (5-1), and a distance III (c) between an inner contour surface of the second circular ring hole (5-1) and an inner hole contour surface of the second circular block (6) is larger than or equal to a distance I (a) between an inner contour surface of the first circular ring hole (3-1) and an inner hole contour surface of the first circular block (2-2).

2. The new support floating ball valve body of claim 1, wherein: and self-lubricating metal layers (7) are arranged at the top ends of the first circular ring blocks (2-2) and the top surface of the second circular ring block (6).

3. The new support floating ball valve body of claim 2, wherein: circular track groove (5-2) have been opened in cylinder (5), install a set of ball (8) in circular track groove (5-2), be fixed with on cylinder (5) and be used for ball (8) spacing holder (9) in circular track groove (5-2) department.

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