High-strength ball valve rod piece

Abstract

The utility model provides a high-strength ball valve rod piece which comprises a valve rod body, the valve rod body is composed of a rod body part, a valve ball connecting part, an adjusting part and a handle connecting part, the valve ball connecting part is fixedly arranged at the bottom end of the rod body part, the adjusting part is arranged at the top end of the rod body part, and the handle connecting part is fixedly arranged at the top end of the adjusting part. A fixing ring is fixedly arranged in the adjusting part, the fixing ring is connected with the top of the rod body part in a nested mode, a plurality of positioning holes are formed in the top of the rod body part in the circumferential direction at equal intervals, and a plurality of telescopic positioning columns are arranged on the inner wall of the fixing ring at equal intervals. According to the valve rod piece, through the arrangement of the rod body part and the adjusting part, the length of the valve rod can be adjusted within a certain range according to requirements, the practicability of the valve rod is improved, meanwhile, the rod body part of the valve rod piece is provided with the I-shaped ring, the surface of the I-shaped ring is sleeved with the sealing ferrule, and the sealing performance of assembly of the valve rod piece and a valve body is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of ball valve, and relates to high strength ball valve stem spare. BACKGROUND

[0002] Ball valve is a kind of valve that controls fluid on-off by rotating ball, wherein valve stem spare is one of important components of ball valve, is connected with ball inside ball valve by valve stem, realizes rotation of ball, to realize opening and closing of ball valve.

[0003] According to the announcement number "CN220354496U", a kind of high-strength disc valve stem is disclosed, including valve stem;The upper end of the valve stem is provided with upper joint, and the upper part of the valve stem is provided with outer connecting thread section, the outer connecting thread section is installed with reinforcing sleeve. The upper thickening sleeve is assembled outside the middle part of the valve stem, to strengthen its strength and wear resistance, also convenient to replace after damage, help butterfly valve stem safe and reliable, and more durable.

[0004] The above-mentioned valve stem improves safety and reliability by increasing thickening sleeve, but we find that the length of the above-mentioned valve stem is fixed during use, the distance of handle part rotation is limited due to the influence of installation position when handle of valve stem rotates, thereby affecting the practicability of valve stem spare, therefore we design high-strength ball valve stem spare to solve the above technical problems. SUMMARY

[0005] The utility model aims at providing high-strength ball valve stem spare to solve the problems raised in the above background art.

[0006] The utility model discloses a high-strength ball valve stem spare can be achieved by the following technical scheme: high-strength ball valve stem spare, including valve stem body, the valve stem body is by stem part, valve ball connecting part, adjusting part and handle connecting part is composed, the bottom of stem part is fixed with valve ball connecting part, the top of stem part is provided with adjusting part, the top of adjusting part is fixed with handle connecting part, the inside of adjusting part is fixed with fixed ring, the fixed ring is nested with the top of stem part Connection, the top of stem part is provided with a plurality of positioning holes along the equidistant periphery, the inner wall of fixed ring is provided with a plurality of telescopic positioning columns, and the positioning column is nested with the corresponding positioning hole Connection.

[0007] In the high-strength ball valve stem spare described above, the inner wall of the fixed ring is provided with a convex mounting groove, the inside of the convex mounting groove is nested with a positioning column, the middle part of the positioning column is fixed with a limiting stopper, the bottom of the convex mounting groove is fixedly installed with a return spring, the return spring is connected with the end part of the positioning column, and the end of the return spring is fixedly connected with the limiting stopper.

[0008] The center of the bottom of the convex mounting groove is provided with a threaded hole in communication with the outside, a adjusting bolt is in threaded connection with the inside of the threaded hole, and the end of the adjusting bolt is in contact connection with the end of the positioning column.

[0009] The bottom of the rod body part is fixedly provided with a I-shaped ring connected as a whole, and the surface of the I-shaped ring is nested with a sealing sleeve ring.

[0010] The outer wall of the valve ball connecting part is fixedly provided with a plurality of limiting clamping strips connected as a whole at equal intervals in the circumferential direction, and the limiting clamping strips are clamped and connected with the limiting clamping grooves at the top end of the valve ball.

[0011] The center of the top end of the handle connecting part is provided with an assembly hole.

[0012] Compared with the prior art, the valve rod part has the advantages that the length of the valve rod can be adjusted within a certain range according to the requirements through the arrangement of the rod body part and the adjusting part, the utility of the valve rod is improved, and the sealing performance of the valve rod part and the valve body is improved through the arrangement of the I-shaped ring on the rod body part and the arrangement of the sealing sleeve ring on the surface of the I-shaped ring. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a structural schematic view of the high-strength ball valve rod part of the utility model.

[0014] Figure 2 is a bottom view structural schematic view of the high-strength ball valve rod part of the utility model.

[0015] Figure 3 is an internal structure schematic view of the adjusting part of the high-strength ball valve rod part of the utility model.

[0016] Figure 4 is a sectional view structural schematic view of the high-strength ball valve rod part of the utility model.

[0017] Figure 5 is a sectional view structural schematic view of the high-strength ball valve rod part of the utility model. Figure 4 is a local enlarged view of A in the high-strength ball valve rod part of the utility model.

[0018] In the figure, 1 is a valve rod body, 2 is a rod body part, 3 is a valve ball connecting part, 4 is an adjusting part, 5 is a handle connecting part, 6 is an adjusting bolt, 7 is a I-shaped ring, 8 is a sealing sleeve ring, 9 is a limiting clamping strip, 10 is a fixing ring, 11 is a positioning hole, 12 is a convex mounting groove, 13 is a positioning column, 14 is a limiting stopper, and 15 is a return spring. DETAILED DESCRIPTION

[0019] The utility model discloses a specific embodiment as follows and further describes the technical scheme of the utility model in connection with the drawings, but the utility model is not limited to these embodiments.

[0020] As Figures 1-5 The utility model discloses a high-strength ball valve stem piece, including the valve stem body 1, the valve stem body 1 is by the stem body part 2, valve ball connecting part 3, adjusting part 4 and handle connecting part 5, the bottom of stem body part 2 is fixed with valve ball connecting part 3, the top of stem body part 2 is provided with adjusting part 4, the top of adjusting part 4 is fixed with handle connecting part 5, the inside of adjusting part 4 is fixed with fixed ring 10, and fixed ring 10 is nested with the top of stem body part 2, and a plurality of positioning holes 11 are equidistantly formed in the top of stem body part 2 along the circumference, and a plurality of telescopic positioning columns 13 are equidistantly arranged on the inner wall of fixed ring 10, and the positioning column 13 is nested with the corresponding positioning hole 11.

[0021] Specifically, the valve stem piece can adjust the length of the valve stem within a certain range according to requirements by the arrangement of the stem body part 2 and the adjusting part 4, thereby improving the practicability of the valve stem, and meanwhile, the stem body part 2 of the valve stem piece is provided with the I-shaped ring 7, and the sealing sleeve 8 is sleeved on the surface of the I-shaped ring 7, thereby improving the sealing performance of the assembly of the valve stem piece and the valve body.

[0022] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 And Figure 5 The utility model discloses a high-strength ball valve stem piece, the inner wall of fixed ring 10 is provided with a convex mounting groove 12, the inside of the convex mounting groove 12 is nested with the positioning column 13, the middle part of the positioning column 13 is fixed with the limiting stopper 14, the bottom of the convex mounting groove 12 is fixedly installed with the reset spring 15, the reset spring 15 is sleeved with the end of the positioning column 13, and the end of the reset spring 15 is fixedly connected with the limiting stopper 14.

[0023] The center of the bottom of the convex mounting groove 12 is provided with a threaded hole in communication with the outside, the inside of the threaded hole is screwed with the adjusting bolt 6, and the end of the adjusting bolt 6 is in contact with the end of the positioning column 13.

[0024] Specifically, by the cooperation of the adjusting bolt 6 and the reset spring 15, the loosened positioning column 13 is reset by the tension of the reset spring 15, the nested positioning column 13 is pushed by the fastening adjusting bolt 6, and the fixing and loosening between the stem body part 2 and the fixed ring 10 can be realized.

[0025] The bottom of the stem body part 2 is fixedly provided with the I-shaped ring 7, and the sealing sleeve 8 is nested on the surface of the I-shaped ring 7.

[0026] Specifically, the sealing performance at the connection between the valve stem body 1 and the valve body is improved by setting the sealing ring 8.

[0027] The outer wall of the valve ball connection part 3 is provided with multiple interconnected limiting strips 9 at equal intervals along the circumference. The limiting strips 9 are engaged with the limiting groove opened at the top of the valve ball.

[0028] Specifically, the use of the limit strip 9 improves the firmness of the connection between the valve stem body 1 and the valve ball.

[0029] An assembly hole is provided at the center of the top of the handle connector 5.

[0030] Specifically, the mounting holes facilitate the connection between the handle and the valve stem body 1.

[0031] In specific implementation, when it is necessary to adjust the length of the valve stem body 1, firstly, manually rotate the adjusting bolt 6 on the side of the adjusting part 4. By pushing out the adjusting bolt 6, the positioning pin 13 retracts into the convex mounting groove 12 by the tension of the return spring 15. Then, manually adjust the depth of the rod body 2 inserted into the adjusting part 4 according to the scale engraved on the top of the rod body 2, and align the positioning hole 11 on the surface of the rod body 2. Then, manually rotate the adjusting bolt 6 in the opposite direction. By rotating the adjusting bolt 6 in the opposite direction, the positioning pin 13 is pushed forward, so that the end of the positioning pin 13 is inserted into the positioning hole 11, thus completing the length adjustment of the valve stem body 1. During use, the sealing ring 8 provided at the bottom of the rod body 2 can increase the sealing between the valve stem body 1 and the valve body, thereby improving the sealing performance of the valve stem.

[0032] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.

Claims

1. A high-strength ball valve stem piece, comprising a valve stem body (1), the valve stem body (1) is composed of a stem body part (2), a valve ball connecting part (3), an adjusting part (4) and a handle connecting part (5), the bottom end of the stem body part (2) is fixedly provided with the valve ball connecting part (3), the top end of the stem body part (2) is provided with the adjusting part (4), and the top end of the adjusting part (4) is fixedly provided with the handle connecting part (5), characterized in that, The inside of the adjusting part (4) is fixedly provided with a fixing ring (10), the fixing ring (10) is nested and connected with the top of the rod body part (2), a plurality of positioning holes (11) are equidistantly arranged on the top of the rod body part (2) in the circumferential direction, and a plurality of telescopic positioning columns (13) are equidistantly arranged on the inner wall of the fixing ring (10).

2. The high-strength ball valve stem piece according to claim 1, characterized in that The inner wall of the fixing ring (10) is provided with a convex mounting groove (12), the convex mounting groove (12) is nested and connected with the positioning column (13), the middle part of the positioning column (13) is fixedly provided with a limiting stopper (14), the bottom of the convex mounting groove (12) is fixedly provided with a reset spring (15), the reset spring (15) is sleeved and connected with the end part of the positioning column (13), and the end part of the reset spring (15) is fixedly connected with the limiting stopper (14).

3. The high-strength ball valve stem piece of claim 2, wherein, The center of the bottom of the convex mounting groove (12) is provided with a threaded hole in communication with the outside, the threaded hole is internally and threadedly connected with an adjusting bolt (6), and the end part of the adjusting bolt (6) is in contact connection with the end part of the positioning column (13).

4. The high-strength ball valve stem piece of claim 1, wherein, The bottom of the rod body part (2) is fixedly provided with an integrated I-shaped ring (7), and the surface of the I-shaped ring (7) is nested and connected with a sealing sleeve ring (8).

5. The high-strength ball valve stem piece according to claim 1, wherein The outer wall of the valve ball connecting part (3) is equidistantly and fixedly provided with a plurality of integrated limiting clamping strips (9) in the circumferential direction, and the limiting clamping strips (9) are clamped and connected with the limiting clamping grooves arranged on the top end of the valve ball.

6. The high-strength ball valve stem piece according to claim 1, wherein The center of the top end of the handle connecting part (5) is provided with an assembling hole. The center of the top end of the handle connecting part (5) is provided with an assembling hole.

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