Ball body supporting and adjusting device of floating ball valve

Abstract

The utility model relates to the technical field of floating ball valves, and discloses a floating ball valve ball supporting and adjusting device which comprises a valve ball, a valve seat and a valve cover, the valve ball is installed in the valve seat, the valve cover is installed on the side face of the valve seat, a supporting plane is arranged at the bottom of the valve ball, a supporting block is installed at the bottom of the inner wall of the valve seat, and the supporting block is installed on the inner wall of the valve seat. An adjustable supporting assembly is arranged in the supporting block; the adjustable supporting assembly comprises a steel ball, an ejector rod and an adjusting screw. According to the ball body supporting and adjusting device for the floating ball valve, after a valve seat is placed on a valve ball during assembly, a supporting block is inserted from the lower end of the ball body, an adjusting screw is rotated, the adjusting screw moves in a positioning pin hole, then an ejector rod is pushed to move, the ejector rod ejects a steel ball to a supporting plane of the valve ball, and then an anti-loosening screw is locked and fixed; the valve ball is positioned in the middle of a valve ball supporting plane, the center of the valve ball and the center line of a valve pipeline coincide and are positioned, and abrasion of the gravity of the ball to a valve seat sealing face is overcome.

Description

TECHNICAL FIELD

[0001] The utility model relates to floating ball valve technical field, concretely is a floating ball valve ball body support adjusting device. BACKGROUND

[0002] In the pipeline transportation medium of coal to oil and oil refining industry, many are solid particles, high hardness, and have special requirements for valve selection. Ball valve is low, switch time is short and other advantages are widely used, and floating ball valve is simple in structure, good in sealing performance, less in leakage point, and no fixed shaft and bearing blocking phenomenon.

[0003] But the floating ball is generally designed to be used in small caliber specification, and the application of ball valve is less than DN150, and an important reason is that the weight of the ball is large, and the non-uniform wear of the valve seat is caused, the lower port of the valve seat is worn more than the upper port, thereby reducing the service life of the valve. UTILITY MODEL CONTENT

[0004] In view of the deficiency of prior art, the utility model provides a floating ball valve ball body support adjusting device, which solves the problem mentioned in the above background.

[0005] The utility model provides the following technical scheme: a floating ball valve ball body support adjusting device, which comprises: a valve ball, a valve seat and a valve cover, the valve ball is installed in the inside of the valve seat, the valve cover is installed on the side surface of the valve seat, and the bottom of the valve ball is provided with a support plane, the bottom of the inner wall of the valve seat is provided with a support block, and the support block is provided with an adjustable support assembly;

[0006] The adjustable support assembly comprises a steel ball, a top rod and an adjusting screw, the top center of the support block is provided with a movable hole, the side surface of the support block is provided with a positioning pin hole, and the movable hole and the positioning pin hole are in communication, the steel ball is installed on the inner wall of the movable hole, the top rod is slidably connected in the inside of the positioning pin hole, the adjusting screw is threadedly connected on the inner wall of the positioning pin hole, one end of the top rod close to the steel ball is provided with a pushing inclined surface, and the pushing inclined surface of the top rod is attached to the surface of the steel ball, and the steel ball is abutted on the support plane.

[0007] Preferably, the adjustable support assembly further comprises a check screw, the check screw is threadedly connected on the inner wall of the positioning pin hole, and one end of the check screw abuts the adjusting screw.

[0008] Preferably, the adjusting screw and the check screw are both provided with an inner hexagonal groove at the end away from the steel ball.

[0009] Preferably, the inner wall of the positioning pin hole is provided with a first positioning groove, the inner wall of the first positioning groove is provided with a positioning pin, and the valve cover is connected to one end of the positioning pin.

[0010] Preferably, a second positioning groove is formed on the valve cover, and an inner wall of the second positioning groove is connected with one end of the positioning pin.

[0011] Preferably, a fixing groove is formed on an inner wall of the support block, a fixing pin is mounted on an inner wall of the fixing groove, a butt joint groove is formed on a side surface of the support block, and an inner wall of the butt joint groove is connected with one end of the fixing pin.

[0012] Preferably, the surface of the steel ball abuts against the center of the support plane.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1、the floating ball valve ball body support adjusting device, through setting when assembling the valve ball is put on the valve seat and then the support block is inserted from the lower end of the ball body, the adjusting screw is moved in the positioning pin hole by rotating the adjusting screw, and then the steel ball is pushed to the support plane of the valve ball by the top rod, and then the lock screw is locked and fixed, the valve ball body is positioned in the middle position of the valve ball support plane, the center of the valve ball is coincident with the center line of the valve pipe, and the wear of the valve seat sealing surface by the gravity of the ball body is overcome.

[0015] 2、the floating ball valve ball body support adjusting device, through setting the fixing pin and the positioning pin, the fixing pin is pre-installed in the fixing groove in the valve body, the butt joint groove on the support block is butted with the fixing pin when the support block is installed, the position of the support block is fixed and limited, the positioning pin is installed between the valve cover, the position of the two ends of the support block is fixed, and the position of the support block is prevented from moving. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0017] Figure 2 It is a side cut structure schematic view of the utility model;

[0018] Figure 3 It is a three-dimensional structure schematic view of the utility model; Figure 2 It is an enlarged structure schematic view of the position A of the utility model;

[0019] Figure 4 It is a support block side cut structure schematic view of the utility model.

[0020] In the drawing: 1, valve ball;2, valve seat;3, valve cover;4, support plane;5, movable hole;6, support block;71, steel ball;72, top rod;73, adjusting screw;8, positioning pin hole;9, top pushing inclined surface;10, lock screw;11, inner hexagonal groove;12, first positioning groove;13, positioning pin;14, second positioning groove;15, fixing groove;16, fixing pin;17, butt joint groove. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0022] Please refer to Figures 1-4 A floating ball valve ball body support adjusting device, comprising: a valve ball 1, a valve seat 2 and a valve cover 3, the valve ball 1 is installed inside the valve seat 2, the valve cover 3 is installed on the side of the valve seat 2, and the bottom of the valve ball 1 is provided with a support plane 4, the bottom of the inner wall of the valve seat 2 is provided with a support block 6, and the support block 6 is provided with an adjustable support assembly;

[0023] The adjustable support assembly comprises a steel ball 71, a top rod 72 and an adjusting screw 73, the top center of the support block 6 is provided with a movable hole 5, the side of the support block 6 is provided with a positioning pin hole 8, and the movable hole 5 and the positioning pin hole 8 are in communication, the steel ball 71 is installed on the inner wall of the movable hole 5, the top rod 72 is slidingly connected in the inside of the positioning pin hole 8, the adjusting screw 73 is threadedly connected on the inner wall of the positioning pin hole 8, one end of the top rod 72 close to the steel ball 71 is provided with a pushing inclined surface 9, and the pushing inclined surface 9 of the top rod 72 is attached to the surface of the steel ball 71, the steel ball 71 is abutted on the support plane 4, and the surface of the steel ball 71 is abutted with the center of the support plane 4.

[0024] The adjustable support assembly further comprises a check screw 10, the check screw 10 is threadedly connected on the inner wall of the positioning pin hole 8, and one end of the check screw 10 is abutted on the adjusting screw 73, and the other end of the adjusting screw 73 and the check screw 10 away from the steel ball 71 is provided with an internal hexagonal groove 11.

[0025] The inner wall of the positioning pin hole 8 is provided with a first positioning groove 12, the inner wall of the first positioning groove 12 is provided with a positioning pin 13, one end of the valve cover 3 is connected with the positioning pin 13, the valve cover 3 is provided with a second positioning groove 14, and the inner wall of the second positioning groove 14 is connected with one end of the positioning pin 13.

[0026] The inner wall of the support block 6 is provided with a fixing groove 15, the inner wall of the fixing groove 15 is provided with a fixing pin 16, the side of the support block 6 is provided with a butt joint groove 17, and the inner wall of the butt joint groove 17 is connected with one end of the fixing pin 16.

[0027] The fixed pin 16 is pre-installed in the fixed groove 15 in the valve body, when the support block 6 is installed, the butt joint groove 17 on the support block 6 is butted with the fixed pin 16, the position of the support block 6 is fixed and limited, when the valve ball 1 is put on the valve seat 2, the support block 6 is inserted from the lower end of the ball, a hexagonal wrench is used to rotate the adjusting screw 73, the adjusting screw 73 is moved in the positioning pin hole 8, the top rod 72 is further pushed to move, the steel ball 71 is pushed to the support plane 4 of the valve ball 1, then the lock screw 10 is locked and fixed, the valve ball is positioned in the middle position of the support plane 4 of the valve ball 1, then the positioning pin 13 is installed, when the valve cover 3 is installed, the second positioning groove 14 on the valve cover 3 is butted with the positioning pin 13, the support block 6 is limited between the positioning pin 13 and the valve cover 3, the position of the two ends of the support block 6 is fixed, the position of the support block 6 is prevented from moving.

[0028] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A floating ball valve ball support adjustment device, characterized by, The utility model relates to a valve, including: Valve ball (1), valve seat (2) and valve cover (3), valve ball (1) is installed inside valve seat (2), valve cover (3) is installed on the side of valve seat (2), and the bottom of valve ball (1) is equipped with support plane (4), the bottom of the inner wall of valve seat (2) is installed with support block (6), adjustable support assembly is arranged in support block (6), Adjustable support assembly includes steel ball (71), top rod (72) and adjusting screw (73), the top center of support block (6) is equipped with movable hole (5), the side of support block (6) is equipped with positioning pin hole (8), and movable hole (5) is communicated with positioning pin hole (8), steel ball (71) is installed on the inner wall of movable hole (5), top rod (72) is slidably connected in the inside of positioning pin hole (8), adjusting screw (73) is threadedly connected on the inner wall of positioning pin hole (8), the end of top rod (72) near steel ball (71) is equipped with push inclined plane (9), and the push inclined plane (9) of top rod (72) is attached to the surface of steel ball (71), and steel ball (71) is abutted on support plane (4).

2. A floating ball valve ball (1) body support adjustment device according to claim 1, characterized in that, The adjustable support assembly further includes a check screw (10) threadedly connected to the inner wall of the positioning pin hole (8), and the check screw (10) abuts one end of the adjusting screw (73).

3. A floating ball valve ball (1) body support adjustment device according to claim 2, characterized in that, The end of the adjusting screw (73) and the check screw (10) away from the steel ball (71) is provided with an inner hexagonal groove (11).

4. A floating ball valve ball (1) body support adjustment device according to claim 1, characterized in that, The inner wall of the positioning pin hole (8) is provided with a first positioning groove (12), and the inner wall of the first positioning groove (12) is provided with a positioning pin (13).

5. A floating ball valve ball (1) body support adjustment device according to claim 4, characterized in that, The valve cover (3) is connected to one end of the positioning pin (13).

6. A floating ball valve ball (1) body support adjustment device according to claim 1, characterized in that, The valve cover (3) is provided with a second positioning groove (14), and the inner wall of the second positioning groove (14) is connected to one end of the positioning pin (13).

7. A floating ball valve ball (1) body support adjustment device according to claim 1, characterized in that, The inner wall of the support block (6) is provided with a fixing groove (15), and the inner wall of the fixing groove (15) is provided with a fixing pin (16). The surface of the steel ball (71) is abutted to the center of the support plane (4).

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