Ball valve lining screwing equipment

Abstract

The utility model provides a ball valve lining screwing device, and belongs to the technical field of valve assembly. The problem that in the prior art, the working efficiency of screwing operation of a ball valve lining is low is solved. The ball valve lining screwing equipment comprises a rack, a positioning seat with a positioning groove and a rotating seat arranged above the positioning seat in a lifting mode are arranged on the rack, the rotating seat can rotate in the circumferential direction relative to the positioning seat, and a limiting column adjacent to the positioning groove is further arranged on the positioning seat. At least one pair of positioning columns capable of moving up and down relative to the rotating seat is vertically arranged on the lower end face of the rotating seat, elastic pieces acting on the positioning columns to enable the positioning columns to extend out of the lower end face of the rotating seat downwards are further arranged on the rotating seat, and the positioning columns can synchronously and circumferentially rotate along with the rotating seat. The utility model has the advantage that the working efficiency of the screwing operation of the ball valve lining can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of valve assembly and relates to a ball valve liner tightening device. Background Art

[0002] The ball valve liner refers to a sleeve installed inside the double-jointed ball valve body. The double-jointed ball valve body has internal threads at both ends, and the ball valve liner has matching external threads. The existing assembly stations mostly manually tighten the ball valve liner to the valve body. However, since the ball valve liner must be completely screwed into the valve body, the manual tightening operation is time-consuming and labor-intensive, and the assembly efficiency is low. Summary of the Invention

[0003] The purpose of the present invention is to solve the above problems in the existing technology and propose a ball valve liner tightening device. The technical problem to be solved by the present invention is how to improve the working efficiency of the ball valve liner tightening operation.

[0004] The purpose of this utility model can be achieved through the following technical solutions:

[0005] A ball valve liner tightening device includes a frame, characterized in that the frame is provided with a positioning seat with a positioning groove and a rotating seat that can be raised and lowered above the positioning seat, and the rotating seat can also rotate circumferentially relative to the positioning seat. The positioning seat also has a limit column arranged adjacent to the positioning groove, and the lower end surface of the rotating seat is vertically provided with at least one pair of positioning columns that can move up and down relative to the rotating seat. The rotating seat is also provided with an elastic member acting on the positioning column to make it extend downward from the lower end surface of the rotating seat, and the positioning column can rotate circumferentially synchronously with the rotating seat.

[0006] When the cam is in the closed position, the camming member is engaged with the camming member and the camming member is engaged with the camming member, thereby the camming member is engaged with the camming member and the camming member is engaged with the camming member, thereby the camming member is engaged with the camming member and the camming member is engaged with the camming member, thereby the camming member is engaged with the camming member and the camming member is engaged with the camming member,

[0007] In the above-mentioned ball valve liner tightening device, the lower end surface of the rotating seat has a telescopic groove extending from bottom to top, the groove wall of the telescopic groove has a limiting groove extending vertically, the upper end of the positioning column has a protruding portion protruding radially, the protruding portion is embedded in the limiting groove so as to be movable up and down, the elastic member is a spring provided in the telescopic groove, one end of the spring is fixedly connected to the top wall of the telescopic groove, and the other end is fixedly connected to the upper end of the positioning column, and under the action of the spring, the lower end of the positioning column extends out of the telescopic groove. Through the matching structure of the protruding portion and the limiting groove, on the one hand, the positioning column can be prevented from separating from the rotating seat, on the other hand, the positioning column can be rotated synchronously with the rotating seat, and on the third hand, the provision of the spring can prevent the positioning column from shaking up and down relative to the rotating seat, and at the same time, when the positioning column is subjected to force, the positioning column can better move up and down relative to the rotating seat.

[0008] In the aforementioned ball valve liner tightening device, the locating seat is detachably mounted on the frame, and the rotating seat is provided with multiple pairs of locating posts. By replacing locating seats with locating slots of varying sizes, and cooperating with the multiple pairs of locating posts on the rotating seat, the ball valve liner tightening device can be adapted for assembling ball valve bodies and liners of varying sizes with double-jointed joints, thereby enhancing the versatility of the ball valve liner tightening device.

[0009] In the above-mentioned ball valve liner tightening device, the limit column is arranged vertically. The vertically arranged limit column has better stability, so it can better limit the circumferential movement of the ball valve body on both sides.

[0010] In the aforementioned ball valve liner tightening device, a sliding seat is provided on the frame and is movable up and down. A motor is fixed to the sliding seat, and the output shaft of the motor is vertically downwardly disposed. The rotating seat is disposed on the output shaft of the motor. By arranging the rotating seat on the output shaft of the motor, the rotating seat can better rotate circumferentially relative to the positioning seat under the drive of the motor.

[0011] In the aforementioned ball valve liner tightening device, the frame is vertically provided with slide rails and a screw-nut mechanism. The sliding seat is mounted on the slide rails via a slider, and the sliding seat is driven by the screw-nut mechanism to move up and down along the slide rails. The screw-nut mechanism and slide rails allow the sliding seat to better drive the rotating seat to move vertically, thereby improving the efficiency of the ball valve liner tightening operation.

[0012] Compared with the existing technology, the advantages of the ball valve liner tightening device are: the ball valve liner tightening device can realize the automation of the ball valve liner tightening operation, thereby greatly improving the work efficiency of the ball valve liner tightening operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1It is a three-dimensional structural diagram of the ball valve liner tightening device.

[0014] Figure 2 It is a partial three-dimensional structural diagram of the ball valve liner tightening device.

[0015] Figure 3 It is a cross-sectional view of the ball valve liner tightening device.

[0016] Figure 4 It is a three-dimensional structural diagram of the positioning column of the ball valve liner tightening device.

[0017] In the figure, 1, frame; 2, positioning seat; 2a, positioning slot; 3, rotating seat; 3a, telescopic slot; 3b, limit slot; 4, limit column; 5, positioning column; 5a, protrusion; 6, spring; 7, sliding seat; 8, motor; 8a, output shaft; 9, slide rail; 10, screw-nut mechanism; 11, slider. DETAILED DESCRIPTION

[0018] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0019] A ball valve liner tightening device, refer to Figure 1-4 , including a frame 1, a positioning seat 2 with a positioning groove 2a and a rotating seat 3 which is liftably arranged above the positioning seat 2, the rotating seat 3 can also rotate circumferentially relative to the positioning seat 2, the positioning seat 2 also has a limiting column 4 arranged adjacent to the positioning groove 2a, the lower end surface of the rotating seat 3 is vertically provided with at least one pair of positioning columns 5 which can move up and down relative to the rotating seat 3, the rotating seat 3 is also provided with an elastic member acting on the positioning column 5 to make it extend downward from the lower end surface of the rotating seat 3, and the positioning column 5 can rotate synchronously with the rotating seat 3 in the circumferential direction.

[0020] Specifically, refer to Figure 1-4 The lower end surface of the rotating seat 3 has a telescopic slot 3a opened from bottom to top, and the slot wall of the telescopic slot 3a has a limit slot 3b opened vertically. The upper end of the positioning column 5 has a radially protruding protrusion 5a, and the protrusion 5a can be embedded in the limit slot 3b so as to move up and down. The elastic member is a spring 6 arranged in the telescopic slot 3a, one end of the spring 6 is fixedly connected to the top wall of the telescopic slot 3a, and the other end is fixedly connected to the upper end of the positioning column 5, and under the action of the spring 6, the lower end of the positioning column 5 extends out of the telescopic slot 3a.

[0021] More specifically, refer to Figure 1-4The frame 1 is provided with a sliding seat 7 that can move up and down. A motor 8 is fixed to the sliding seat 7. The output shaft 8a of the motor 8 is vertically downwardly arranged. The rotating seat 3 is arranged on the output shaft 8a of the motor 8. The frame 1 is provided with slide rails 9 and a screw-nut mechanism 10 along the vertical direction. The sliding seat 7 is provided on the slide rails 9 via a slider 11. The sliding seat 7 is driven by the screw-nut mechanism 10 to move up and down along the slide rails 9.

[0022] Further, refer to Figure 1-4 The positioning seat 2 is detachably arranged on the frame 1, and a plurality of pairs of positioning columns 5 are arranged on the rotating seat 3.

[0023] The following describes the working principle of the ball valve liner tightening device:

[0024] During use, the user first pre-connects the ball valve liner to one end of the double-sided union ball valve body, and then places the double-sided union ball valve body in the positioning groove 2a of the positioning seat 2. During the tightening operation, the limit column 4 vertically arranged on the positioning seat 2 can abut against the raised part of the side wall of the double-sided union ball valve body to form a circumferential movement limit for the double-sided union ball valve body. Then the user starts the screw nut mechanism 10 and the motor 8, and the screw nut mechanism 10 drives the sliding seat 7 to move downward along the slide rail 9. When the positioning column 5 on the rotating seat 3 contacts the ball valve liner, the positioning column 5 can self-align with the groove on the ball valve liner.

[0025] Specifically, if the positioning column 5 is opposite to the groove on the ball valve lining up and down (the two positioning columns 5 are opposite to the two grooves on the ball valve lining up and down at the same time), the two positioning columns 5 are smoothly inserted into the two grooves on the ball valve lining respectively. When the positioning column 5 and the groove on the ball valve lining are misaligned up and down, the positioning column 5 is in contact with the ball valve lining and subjected to force, causing the positioning column 5 to move up and down relative to the rotating seat 3 (when subjected to force, the positioning column 5 compresses the spring 6 and moves upward along the limit groove 3b. After the external force is removed, the positioning column 5 moves downward along the limit groove 3b under the action of the spring 6. This process is performed alternately, thereby forming up and down movement).

[0026] At the same time, motor 8 drives rotating seat 3 to rotate circumferentially relative to positioning seat 2. When positioning posts 5 and the grooves on the ball valve liner become aligned vertically, the two positioning posts 5, under the elastic force of spring 6, smoothly snap into the two grooves on the ball valve liner. At this point, rotating seat 3 drives the ball valve liner to rotate synchronously until the ball valve liner and the double-jointed ball valve body are threaded into place. Then, screw-nut mechanism 10 drives sliding seat 7 upward along slide rail 9 to reset. The motor 8 on sliding seat 7 and rotating seat 3 are synchronously reset, ready for the next tightening operation of the ball valve liner.

[0027] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A ball valve liner tightening device, comprising a frame (1), characterized in that: The frame (1) is provided with a positioning seat (2) having a positioning groove (2a) and a rotating seat (3) which is arranged above the positioning seat (2) in a liftable manner. The rotating seat (3) can also rotate circumferentially relative to the positioning seat (2). The positioning seat (2) is also provided with a limiting column (4) arranged adjacent to the positioning groove (2a). The lower end surface of the rotating seat (3) is provided with at least one pair of positioning columns (5) which can move up and down relative to the rotating seat (3) in the vertical direction. The rotating seat (3) is also provided with an elastic member which acts on the positioning columns (5) to make them extend downward from the lower end surface of the rotating seat (3), and the positioning columns (5) can rotate circumferentially synchronously with the rotating seat (3).

2. A ball valve liner tightening device according to claim 1, characterized in that: The lower end surface of the rotating seat (3) has a telescopic groove (3a) opened from bottom to top, and the groove wall of the telescopic groove (3a) has a limiting groove (3b) opened vertically. The upper end of the positioning column (5) has a protruding portion (5a) protruding in the radial direction, and the protruding portion (5a) is embedded in the limiting groove (3b) so as to be movable up and down. The elastic member is a spring (6) arranged in the telescopic groove (3a), one end of the spring (6) is fixedly connected to the top wall of the telescopic groove (3a), and the other end is fixedly connected to the upper end of the positioning column (5), and under the action of the spring (6), the lower end of the positioning column (5) extends out of the telescopic groove (3a).

3. A ball valve liner tightening device according to claim 1 or 2, characterized in that: The positioning seat (2) is detachably arranged on the frame (1), and a plurality of pairs of positioning columns (5) are arranged on the rotating seat (3).

4. A ball valve liner tightening device according to claim 1 or 2, characterized in that: The limiting column (4) is arranged vertically.

5. A ball valve liner tightening device according to claim 1 or 2, characterized in that: The frame (1) is provided with a sliding seat (7) that can move up and down, a motor (8) is fixedly provided on the sliding seat (7), an output shaft (8a) of the motor (8) is vertically arranged downward, and the rotating seat (3) is arranged on the output shaft (8a) of the motor (8).

6. A ball valve liner tightening device according to claim 5, characterized in that: The frame (1) is respectively provided with a slide rail (9) and a screw nut mechanism (10) in the vertical direction; the slide seat (7) is provided on the slide rail (9) via a slider (11); and the slide seat (7) is driven by the screw nut mechanism (10) to move up and down along the slide rail (9).

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