Power driving assembly of metallurgical valve

Abstract

The utility model discloses a power driving assembly of a metallurgical valve, which comprises a valve main body, a fixing frame, a driving rod, a limiting mechanism and a connecting mechanism, and the limiting mechanism is used for forming extrusion structures on two sides of the driving rod and extruding and fixing the driving rod. The connecting mechanism is used for forming a movable structure on the limiting mechanism and driving the limiting mechanism to move. The fixing rods are pulled upwards, the two fixing blocks are driven to rotate upwards together, the two threaded rods are driven to rotate together, the threaded rods move on the mounting pipe in a threaded mode, the two fixing rods are driven to move, the two ends of the connecting rod slide into an inner cavity of a connecting groove, the connecting rod is supported, one end of each threaded rod drives the limiting block to move in the horizontal direction, and the limiting blocks are driven to move in the horizontal direction. And the two limiting blocks oppositely move on the two sides of the driving rod, the inner walls of the two limiting blocks extrude the two sides of the outer wall of the driving rod, the stability of the driving rod is improved, the driving rod is prevented from rotating due to mistaken touch, and the production safety is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of metallurgical valves, in particular to a power drive component of a metallurgical valve. Background Art

[0002] Metallurgical valves are valves used in the metallurgical industry. They are resistant to high temperatures and corrosion. They are used to connect pipelines in metallurgical processes and control the on-off of pipelines. Common metallurgical valves include globe valves, ball valves, butterfly valves, gate valves and check valves.

[0003] Common metallurgical valves use screws as their main driving components. By rotating the screw outside the valve, the internal components of the valve are driven to move, the inside of the valve is opened or closed, and the flow and closure of the pipeline are controlled. However, since valves are often opened manually and the screw outside the valve is manually rotated, when workers make operating errors or the valve is hit, the screw driving the valve may be accidentally touched, causing the screw to rotate, which in turn affects the normal operation of the valve and affects the safety of production. Utility Model Content

[0004] The purpose of the utility model is to provide a power drive assembly for a metallurgical valve to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a power drive assembly for a metallurgical valve, comprising a valve body;

[0006] A fixing frame, the bottom end of which is fixedly connected to the top of the outer wall of the valve body;

[0007] A driving rod, the top of which is rotatably interlaced with the top of the fixing frame;

[0008] It also includes a limiting mechanism, which is arranged on both sides of the fixing frame, and is used to form an extrusion structure on both sides of the driving rod and to squeeze and fix the driving rod;

[0009] The connecting mechanism is arranged on the limiting mechanism, and is used to form a movable structure on the limiting mechanism and drive the limiting mechanism to move.

[0010] Preferably, the limiting mechanism comprises:

[0011] A limit block, the limit block is arranged on one side of the driving rod, and the limit block is arranged in an arc shape;

[0012] A mounting tube, one end of which is fixedly interlaced and connected to one side of the fixing frame;

[0013] A screw rod, one end of which is threadedly connected to the inner wall of the mounting tube, and the other end of which is rotatably connected to one side of the limiting block.

[0014] Preferably, the limiting mechanism comprises:

[0015] A connecting block, the upper surface of which is fixedly connected to the middle portion of the lower surface of the limiting block;

[0016] A limiting rod, one end of which is fixedly connected to one side of the connecting block, and the other end of which is slidably and interlacedly connected to one side of the inner wall of the fixing frame;

[0017] A fixed block, one end of which is fixedly interlaced with one end of the screw rod.

[0018] Preferably, the connecting mechanism comprises:

[0019] A fixing rod, one end of which is fixedly connected to one side of the other end of the fixing block;

[0020] A connecting rod is arranged between the fixing rods and is used to connect the fixing rods.

[0021] Preferably, the connecting mechanism comprises:

[0022] A connecting groove, which is arranged in the middle of the other end of the fixing rod, and the inner cavity of the connecting groove is slidably connected with one end of the connecting rod;

[0023] A compression spring is arranged in the inner cavity of the connecting groove, and one end of the compression spring is fitted with one end of the connecting rod.

[0024] Preferably, the limit block is arranged in the inner cavity of the fixing frame, and the inner wall of the limit block is in contact with the outer wall of the driving rod.

[0025] Technical effects and advantages of the utility model:

[0026] The utility model utilizes a setting mode that matches the mounting tube, the screw rod, the limit block, the fixing block, the fixing rod and the connecting rod, and pulls the fixing rod upward to drive the two fixing blocks to rotate upward together, drive the two screw rods to rotate together, the screw rod moves on the mounting tube threadably, and drives the two fixing rods to move toward each other as the screw rod moves, the two ends of the connecting rod slide into the inner cavity of the connecting groove, compresses and deforms the compression spring, and utilizes the elastic effect of the compression spring to support the connecting rod, one end of the screw rod drives the limit block to move in the horizontal direction, so that the two limit blocks move toward each other on both sides of the driving rod, the inner walls of the two limit blocks squeeze the two sides of the outer wall of the driving rod, improve the stability of the driving rod, prevent the driving rod from rotating due to accidental touch, and ensure the safety of production. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0028] Figure 2 This is a schematic diagram of the structure of the driving rod of the utility model.

[0029] Figure 3 It is a schematic diagram of the front structure of the limit block of the utility model.

[0030] Figure 4 It is a front sectional structural schematic diagram of the fixing rod of the utility model.

[0031] In the figure: 1. valve body; 2. fixing frame; 3. driving rod; 4. limiting mechanism; 41. limiting block; 42. mounting pipe; 43. screw; 44. connecting block; 45. limiting rod; 46. fixing block; 5. connecting mechanism; 51. fixing rod; 52. connecting rod; 53. connecting groove; 54. compression spring. DETAILED DESCRIPTION

[0032] 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.

[0033] The utility model provides Figure 1-4 A power drive assembly of a metallurgical valve shown in the figure includes a valve body 1, a fixing frame 2, a driving rod 3, a limiting mechanism 4 and a connecting mechanism 5. The valve body 1 is used for metallurgical production. The bottom end of the fixing frame 2 is fixedly connected to the top of the outer wall of the valve body 1. The fixing frame 2 is U-shaped and is used to install the driving rod 3. The top of the driving rod 3 is rotatably and interlacedly connected with the top of the fixing frame 2. The driving rod 3 is a threaded rod. The on and off of the valve body 1 is controlled by rotating the driving rod 3. The limiting mechanism 4 is arranged on both sides of the fixing frame 2. The limiting mechanism 4 is used to form an extrusion structure on both sides of the driving rod 3 and to squeeze and fix the driving rod 3. The driving rod 3 is squeezed by the limiting mechanism 4 to improve the stability of the driving rod 3 and prevent the driving rod 3 from being accidentally touched. The connecting mechanism 5 is arranged on the limiting mechanism 4. The connecting mechanism 5 is used to form an active structure on the limiting mechanism 4 and drive the limiting mechanism 4 to move. The limiting mechanisms 4 on both sides are connected by the connecting mechanism 5 so that the two limiting mechanisms 4 move together.

[0034] The limiting mechanism 4 includes a limiting block 41, a mounting tube 42, a screw 43, a connecting block 44, a limiting rod 45 and a fixing block 46. The limiting block 41 is arranged on one side of the driving rod 3. The limiting block 41 is arranged in an arc shape. Two limiting blocks 41 are arranged on both sides of the driving rod 3. The driving rod 3 is squeezed and fixed by the two limiting blocks 41 to prevent the driving rod 3 from rotating due to accidental touch. One end of the mounting tube 42 is fixedly connected with one side of the fixing frame 2 through insertion. The mounting tube 42 is used to install the screw 43. The screw 43 is threadedly rotated on the mounting tube 42. One end of the screw 43 is threadedly connected with the inner wall of the mounting tube 42, and the other end of the screw 43 is rotationally connected with one side of the limiting block 41. By rotating the screw 43, the drive The movable limit block 41 moves in the horizontal direction to squeeze the outer wall of the driving rod 3. The upper surface of the connecting block 44 is fixedly connected to the middle part of the lower surface of the limit block 41. The connecting block 44 is used to connect the limit rod 45 and the limit block 41, so that the limit block 41 drives the limit rod 45 to move together. One end of the limit rod 45 is fixedly connected to one side of the connecting block 44, and the other end of the limit rod 45 is slidably connected to one side of the inner wall of the fixed frame 2. The limit rod 45 is used to limit the movement of the limit block 41 so that the limit block 41 cannot rotate. One end of the fixed block 46 is fixedly connected to one end of the screw rod 43. The fixed block 46 is arranged in a long strip and tilted, and is used to drive the screw rod 43 to rotate.

[0035] The connecting mechanism 5 includes a fixing rod 51, a connecting rod 52, a connecting groove 53 and a compression spring 54. One end of the fixing rod 51 is fixedly connected to one side of the other end of the fixing block 46. The two fixing rods 51 are arranged between the opposite sides of the two fixing blocks 46 to drive the fixing blocks 46 to rotate. The connecting rod 52 is arranged between the fixing rods 51. The connecting rod 52 is used to connect the fixing rods 51. The two fixing rods 51 are connected by the connecting rod 52 so that the two fixing rods 51 and the fixing block 46 rotate together. The connecting groove 53 is arranged in the middle of the other end of the fixing rod 51. The inner cavity of the connecting groove 53 is slidably inserted and connected with one end of the connecting rod 52. The connecting groove 53 is used to install the connecting rod 52 and the compression spring 54. The two ends of the connecting rod 52 are respectively slidably inserted in the two fixing rods 51. In the inner cavity of the upper connecting groove 53, and when the two fixing blocks 46 drive the screw rod 43 to rotate, the two fixing rods 51 are driven to move toward the connecting rod 52 together, and one end of the connecting rod 52 slides in the inner cavity of the connecting groove 53. The compression spring 54 is arranged in the inner cavity of the connecting groove 53, and one end of the compression spring 54 is in contact with one end of the connecting rod 52. The compression spring 54 is used to push and squeeze the connecting rod 52 to ensure that the connecting rod 52 is stably arranged between the two fixing rods 51. When the two fixing rods 51 move toward each other, the two ends of the connecting rod 52 are driven to compress and deform the two compression springs 54 respectively, and the elastic action of the compression spring 54 is used to push the connecting rod 52. The limit block 41 is arranged in the inner cavity of the fixed frame 2, and the inner wall of the limit block 41 is in contact with the outer wall of the driving rod 3.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A power drive assembly for a metallurgical valve, comprising: Valve body (1); A fixing frame (2), the bottom end of the fixing frame (2) being fixedly connected to the top of the outer wall of the valve body (1); A driving rod (3), the top of the driving rod (3) being rotatably interlaced with the top of the fixing frame (2); The invention is characterized in that it also comprises a limiting mechanism (4), wherein the limiting mechanism (4) is arranged on both sides of the fixing frame (2), and the limiting mechanism (4) is used to form an extrusion structure on both sides of the driving rod (3) and to squeeze and fix the driving rod (3); A connecting mechanism (5), wherein the connecting mechanism (5) is arranged on the limiting mechanism (4), and the connecting mechanism (5) is used to form a movable structure on the limiting mechanism (4) and drive the limiting mechanism (4) to move.

2. A power drive assembly for a metallurgical valve according to claim 1, characterized in that: The limiting mechanism (4) comprises: A limit block (41), wherein the limit block (41) is arranged on one side of the driving rod (3), and the limit block (41) is arranged in an arc shape; A mounting tube (42), one end of which is fixedly connected to one side of the fixing frame (2) by insertion; A screw rod (43), one end of which is threadedly connected to the inner wall of the mounting tube (42), and the other end of which is rotatably connected to one side of the limiting block (41).

3. A power drive assembly for a metallurgical valve according to claim 2, characterized in that: The limiting mechanism (4) comprises: A connecting block (44), the upper surface of the connecting block (44) being fixedly connected to the middle portion of the lower surface of the limiting block (41); A limiting rod (45), one end of which is fixedly connected to one side of the connecting block (44), and the other end of which is slidably connected to one side of the inner wall of the fixing frame (2); A fixed block (46), one end of which is fixedly interlaced with one end of the screw rod (43).

4. A power drive assembly for a metallurgical valve according to claim 3, characterized in that: The connecting mechanism (5) comprises: A fixing rod (51), one end of which is fixedly connected to one side of the other end of the fixing block (46); A connecting rod (52), wherein the connecting rod (52) is arranged between the fixing rods (51), and the connecting rod (52) is used to connect the fixing rods (51).

5. A power drive assembly for a metallurgical valve according to claim 4, characterized in that: The connecting mechanism (5) comprises: A connecting groove (53), wherein the connecting groove (53) is arranged in the middle of the other end of the fixing rod (51), and the inner cavity of the connecting groove (53) is slidably interlaced with one end of the connecting rod (52); A compression spring (54), wherein the compression spring (54) is arranged in the inner cavity of the connecting groove (53), and one end of the compression spring (54) is in contact with one end of the connecting rod (52).

6. A power drive assembly for a metallurgical valve according to claim 5, characterized in that: The limit block (41) is arranged in the inner cavity of the fixing frame (2), and the inner wall of the limit block (41) is in contact with the outer wall of the driving rod (3).

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