Positioning device for mounting sleeve valve pipe assembly

Abstract

The utility model discloses a locating device used for installing a sleeve valve pipe assembly, which comprises an installing sleeve seat, a heightening frame, a pneumatic telescopic rod and a pipe body calibration pressurization buckling unit. In the using process of the locating device, a valve pipe is tightly wrapped by a first elastic rubber ring, and when the valve pipe is inserted downwards, the first elastic rubber ring is driven to move; the first elastic rubber ring moves to generate vertical traction on the rubber sleeve part, the rubber sleeve part can be matched with the fixing ring to achieve real-time traction on the surface of the upper end of the valve pipe, vertical uniform depth control over the top of the valve pipe can be achieved under the traction body, so that the vertical insertion effect of the valve pipe is improved, the first spraying head can lubricate the surface of the valve pipe in a power-assisted guide roller area, and the spraying effect of the valve pipe is improved. The second material spraying pipes installed on the two sides of the sliding assisting liquid bin can be annularly and symmetrically arranged through the second material spraying heads, so that the second material spraying heads can conduct lubrication assisting on the surfaces of the valve pipes in the areas of the two sides of the assisting guide roller, and abrasion between the valve pipes and valve seat end sockets is reduced.

Description

Technical Field

[0001] This utility model relates to the field of valve tube assembly positioning and calibration technology, specifically a positioning device for installing valve tube assemblies. Background Technology

[0002] The sleeve valve assembly is a key functional unit in industrial valve systems. Its core structure and application characteristics are as follows: Sleeve and valve body: The core components of a single-seat sleeve control valve include the valve body, valve seat, valve core, and sleeve. The sleeve, through precise design, achieves throttling control of the fluid medium. Drive and sealing components: The solenoid valve assembly typically includes a pilot head, valve core, and magnetically shielded sleeve. The magnetically shielded sleeve optimizes electromagnetic control performance through magnetic isolation. Sealing structure design: The metal bellows assembly, through spring preload and stationary ring cooperation, prevents the sealing end face from detaching during rapid valve opening and closing, ensuring that leakage meets standards.1 When selecting a model, the bellows inner diameter should be matched according to the valve stem diameter (generally 1.5mm larger than the valve stem), and the stroke should be controlled to not exceed 25% of the free length to ensure service life. Flexible sealing accessories: The rubber clamp valve sleeve uses a flexible material to adapt to different interface shapes and maintain sealing integrity under high pressure.

[0003] In the prior art, publication number "CN204590026U" discloses a positioning device for installing a sleeve valve tube assembly. The sleeve valve tube assembly includes multiple sleeve valve tube sections. Two of these sections are vertically positioned at the opening of a working hole formed by drilling a follower pipe, and then connected via a connecting socket before being lowered into the working hole. The positioning device includes: a support member installed on the upper part of the lower sleeve valve tube section, which is already positioned in the working hole, to keep the lower sleeve valve tube section centered in the working hole and prevent it from falling into the working hole; and a bracket above the support member and clamping the outer wall of the lower sleeve valve tube section, used to connect the lower sleeve valve tube section to the upper sleeve valve tube section after ensuring that the central axis of the lower sleeve valve tube section is parallel to the central axis of the follower pipe located outside it. This utility model is simple to manufacture, has a simple structure, and is economical and practical.

[0004] However, existing technologies still have significant shortcomings, such as:

[0005] In the aforementioned devices and existing technologies, the lack of pressure guidance on the outer surface of the valve tube during the snap-fit ​​installation of the valve body end cap and valve tube makes it difficult to maintain a uniform and stable depth of the valve tube, which can cause excessive wear on the side wall of the valve tube and affect the sealing effect of the valve tube and end cap. Utility Model Content

[0006] The purpose of this invention is to provide a positioning device for installing a sleeve valve tube assembly, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a positioning device for installing a valve tube assembly, comprising a mounting sleeve, an extension frame, a pneumatic telescopic rod, and a tube body calibration and pressurizing fastening unit. The mounting sleeve has an assembly cavity on its surface, the extension frame is installed at the bottom of the mounting sleeve, and the bottom of the mounting sleeve has a pressurizing and unloading structure for pressurizing and unloading the valve tube. The pneumatic telescopic rod is installed in the top area of ​​the mounting sleeve, and the tube body calibration and pressurizing fastening unit is located on the outer surface of the mounting sleeve for calibration assistance during the tube body fastening process. A fixing ring is installed at the top of the output end of the pneumatic telescopic rod. Preferably, the tube body calibration and pressure fastening unit includes a calibration section, the calibration section includes a lateral clamping platform, the lateral clamping platform is arranged in a ring array on the outer surface of the mounting sleeve, a linear guide rail is embedded in the surface of the lateral clamping platform, the linear guide rail is symmetrically arranged in two sets, a movable seat is installed on the moving end of the linear guide rail, the movable seat is provided with a mounting cavity, an assisting guide roller is installed on one side of the movable seat, and an anti-slip rubber layer is provided on the surface of the assisting guide roller.

[0008] Preferably, the tube body calibration and pressure fastening unit further includes a lubrication part, the lubrication part including a lubricating fluid chamber, the lubricating fluid chamber being embedded in the mounting cavity, a fixing frame being installed on the top of the lubricating fluid chamber, a first spray pipe being connected to the top of the lubricating fluid chamber, one end of the first spray pipe being installed through the fixing frame, a first spray head being provided at one end of the first spray pipe, and second spray pipes being symmetrically installed on both sides of the lubricating fluid chamber, a second spray head being installed at one end of the second spray pipe.

[0009] Preferably, the angle between the first spray nozzle and the second spray nozzle is set to 60°.

[0010] Preferably, the angle between the second nozzle and the second nozzle tube is set to 30°.

[0011] Preferably, the pressurized unloading structure includes a movable cylinder, which is installed between adjacent lifting frames. A through hole is provided at the bottom of the assembly cavity, and a column top block is installed on the output end of the movable cylinder. The column top block is movably inserted into the through hole.

[0012] Preferably, a rubber sleeve is installed at the bottom of the fixing ring, and an elastic rubber ring is installed at the bottom of the rubber sleeve. The cross-sectional area of ​​the elastic rubber ring is smaller than that of the fixing ring.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. During use, to prevent the valve tube tip from not being able to maintain verticality during insertion, the elastic rubber ring 1 and the fixing ring 1 are directly connected by a rubber sleeve. The valve tube is tightly covered by the elastic rubber ring 1. When the valve tube is inserted downwards, it will drive the elastic rubber ring 1 to move. The movement of the elastic rubber ring 1 will generate vertical traction on the rubber sleeve part. The rubber sleeve part will work with the fixing ring to achieve real-time traction on the upper surface of the valve tube. Under the traction state, the vertical uniform depth control of the top of the valve tube can be achieved to improve the vertical insertion effect of the valve tube.

[0015] 2. In order to further reduce the wear of the valve tube during the insertion process, the inner cavity of the moving seat is equipped with a lubricating fluid tank. The lubricating fluid sprayed in the lubricating fluid tank can be sprayed from the nozzle one installed on the spray pipe one in a top view. The nozzle one can lubricate the surface of the valve tube in the area of ​​the assisting guide roller. The spray pipe two installed on both sides of the lubricating fluid tank can be symmetrically arranged in a ring with the nozzle two, so that the nozzle two can lubricate the surface of the valve tube in the area of ​​both sides of the assisting guide roller, reducing the wear between the valve tube and the valve seat end cap. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall device of this utility model;

[0017] Figure 2 This is a schematic diagram of the movable cylinder and the top block of the column in this utility model;

[0018] Figure 3 This is a schematic diagram of the lateral clamping platform and linear guide rail in this utility model;

[0019] Figure 4 This is a schematic diagram of the movable seat and the lubrication fluid tank in this utility model.

[0020] In the diagram: 1. Mounting sleeve; 11. Assembly cavity; 2. Elevator frame; 3. Movable cylinder; 31. Column top block; 4. Pneumatic telescopic rod; 5. Fixing ring one; 51. Elastic rubber ring one; 52. Rubber sleeve; 6. Lateral clamping platform; 61. Linear guide rail; 7. Moving seat; 71. Mounting cavity; 8. Lubricating fluid tank; 81. Fixing frame; 82. Spray pipe one; 821. Spray head one; 83. Spray pipe two; 831. Spray head two; 9. Assisting guide roller. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 This utility model provides a technical solution:

[0023] Example 1: A positioning device for installing a valve tube assembly: including a mounting sleeve 1, an extension frame 2, a pneumatic telescopic rod 4, and a tube body calibration and pressurizing fastening unit. The mounting sleeve 1 has an assembly cavity 11 on its surface. The extension frame 2 is installed at the bottom of the mounting sleeve 1. The bottom of the mounting sleeve 1 is provided with a pressurizing and unloading structure for pressurizing and unloading the valve tube. The pneumatic telescopic rod 4 is installed in the top area of ​​the mounting sleeve 1. The tube body calibration and pressurizing fastening unit is located on the outer surface of the mounting sleeve 1 for calibration assistance during the tube body fastening process. A fixing ring 5 is installed at the top of the output end of the pneumatic telescopic rod 4. The tube body calibration and pressure fastening unit includes a calibration section, which includes a lateral clamping platform 6. The lateral clamping platform 6 is arranged in a ring array on the outer surface of the mounting sleeve 1. A linear guide rail 61 is embedded in the surface of the lateral clamping platform 6. The linear guide rail 61 is symmetrically arranged in two sets. A movable seat 7 is installed on the moving end of the linear guide rail 61. The movable seat 7 has a mounting cavity 71 inside. An auxiliary guide roller 9 is installed on one side of the movable seat 7. The surface of the auxiliary guide roller 9 is provided with an anti-slip rubber layer.

[0024] The tube body calibration and pressure fastening unit also includes a lubrication part, which includes a lubricating fluid tank 8. The lubricating fluid tank 8 is embedded in the mounting cavity 71. A fixing frame 81 is installed on the top of the lubricating fluid tank 8. A first spray pipe 82 is connected to the top of the lubricating fluid tank 8. One end of the first spray pipe 82 is installed through the fixing frame 81. A first spray head 821 is provided at one end of the first spray pipe 82. Second spray pipes 83 are symmetrically installed on both sides of the lubricating fluid tank 8. A second spray head 831 is installed at one end of the second spray pipe 83.

[0025] The angle between the spray nozzle 82 and the spray nozzle 82 is set to 60°.

[0026] The angle between the second nozzle 831 and the second nozzle 83 is set to 30°.

[0027] In this embodiment, the lubricating liquid sprayed in the lubricating liquid tank 8 can be sprayed in a top view through the spray nozzle 821 installed on the spray pipe 82. The spray nozzle 821 can lubricate the valve tube surface in the area of ​​the guide roller 9. The spray pipes 83 installed on both sides of the lubricating liquid tank 8 can be arranged symmetrically in a ring with the spray nozzles 831, so that the spray nozzles 831 can lubricate the valve tube surface in the area on both sides of the guide roller 9, reducing the wear between the valve tube and the valve seat end cap.

[0028] The pressurized unloading structure includes a movable cylinder 3, which is installed between adjacent heightening frames 2. A through hole is provided at the bottom of the assembly cavity 11. A column top block 31 is installed on the output end of the movable cylinder 3, and the column top block 31 is movably inserted into the through hole.

[0029] In this embodiment, after the valve tube and valve seat end cap are pressurized and fastened, in order to facilitate the quick removal of the valve seat from the assembly cavity 11, the movable cylinder 3 can be driven to push the column top block 31 to be inserted into the through hole, thereby pushing the valve seat out of the assembly cavity 11 and realizing the quick removal of the valve seat.

[0030] Example 2:

[0031] Based on Embodiment 1, this embodiment takes into account that if the valve tube is vertically transported by the cooperation between the elastic rubber ring 51 and the fixed ring 5, and if the fixed ring 5 and the elastic rubber ring 51 are rigidly connected, the elastic rubber ring will not be able to extend and cover the valve tube. This means that the elastic rubber ring 51 can only position and calibrate the shorter area at the upper end of the valve tube, and it is difficult to achieve smooth control of the valve tube positioning and insertion. Therefore, in this embodiment, a rubber sleeve 52 is provided to avoid the above problems.

[0032] A rubber sleeve 52 is installed at the bottom of the fixing ring 5, and an elastic rubber ring 51 is installed at the bottom of the rubber sleeve 52. The cross-sectional area of ​​the elastic rubber ring 51 is smaller than that of the fixing ring 5.

[0033] In this embodiment, the elastic rubber ring 51 and the fixing ring 5 are directly connected by the rubber sleeve 52. The valve tube is tightly covered by the elastic rubber ring 51. When the valve tube is inserted downward, it will drive the elastic rubber ring 51 to move. The movement of the elastic rubber ring 51 will generate vertical traction on the rubber sleeve 52. The rubber sleeve 52 will cooperate with the fixing ring to realize real-time traction on the upper surface of the valve tube. Under the traction state, the vertical uniform depth control of the top of the valve tube can be realized to improve the vertical insertion effect of the valve tube.

[0034] Working principle: The operator inserts the valve tube into the elastic rubber ring 51, places the valve body end cap to be fastened into the assembly cavity 11, and then performs the fastening steps of the valve body end cap and the valve tube. The operator presses the valve tube to insert one end of the valve tube into multiple sets of lateral clamps 6. In order to ensure that the valve tube surface between the multiple sets of lateral clamps 6 is evenly pressed and maintains a vertical insertion state, the moving seat 7 and the auxiliary guide roller 9 can be moved and calibrated towards the valve tube surface by driving the linear guide rail 61. After the multiple sets of moving seats 7 move into place synchronously, the auxiliary guide roller 9 on one side of the moving seat 7 will be arranged in a ring and attached to the valve tube surface, thereby forming a ring support for the valve tube surface, ensuring that the valve tube maintains a vertical and uniform depth when it is pressed and fastened into the valve seat end cap.

[0035] When the guide roller 9 is attached to the surface of the valve tube, the valve tube is simultaneously pressed from the top because the anti-slip rubber layer on the surface of the guide roller 9 is in contact with the surface of the valve tube. In order to prevent the top of the valve tube from being unable to maintain verticality during insertion, the elastic rubber ring 51 and the fixing ring 5 are directly connected through the rubber sleeve 52. The valve tube is tightly wrapped by the elastic rubber ring 51. When the valve tube is inserted downward, it will drive the elastic rubber ring 51 to move. The movement of the elastic rubber ring 51 will generate vertical traction on the rubber sleeve 52. The rubber sleeve 52 will cooperate with the fixing ring to achieve real-time traction on the upper surface of the valve tube. Under the traction state, the vertical uniform depth control of the top of the valve tube can be achieved to improve the vertical insertion effect of the valve tube.

[0036] To further reduce wear on the valve tube during insertion, the inner cavity of the movable seat 7 is equipped with a lubricating fluid tank 8. The lubricating fluid sprayed from the lubricating fluid tank 8 can be sprayed from the nozzle 821 installed on the nozzle 82 in a top-down view. The nozzle 821 can lubricate the surface of the valve tube in the area of ​​the guide roller 9. The nozzles 83 installed on both sides of the lubricating fluid tank 8 can be arranged symmetrically in a ring with the nozzles 831, so that the nozzles 831 can lubricate the surface of the valve tube in the area of ​​both sides of the guide roller 9, reducing wear between the valve tube and the valve seat end cap.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning device for installing a sleeve valve tube assembly, characterized in that: The device includes a mounting sleeve (1), a heightening bracket (2), a pneumatic telescopic rod (4), and a pipe body calibration and pressurization fastening unit. The mounting sleeve (1) has an assembly cavity (11) on its surface. The heightening bracket (2) is installed at the bottom of the mounting sleeve (1). The bottom of the mounting sleeve (1) has a pressurization and unloading structure for pressurizing and unloading the valve pipe. The pneumatic telescopic rod (4) is installed in the top area of ​​the mounting sleeve (1). The pipe body calibration and pressurization fastening unit is located on the outer surface of the mounting sleeve (1) for calibration assistance during the pipe body fastening process. A fixing ring (5) is installed at the top of the output end of the pneumatic telescopic rod (4).

2. The positioning device for installing a sleeve valve assembly according to claim 1, characterized in that: The tube body calibration and pressure fastening unit includes a calibration section, which includes a lateral clamp (6). The lateral clamp (6) is arranged in a ring array on the outer surface of the mounting sleeve (1). A linear guide rail (61) is embedded in the surface of the lateral clamp (6). The linear guide rail (61) is symmetrically arranged in two sets. A movable seat (7) is installed on the moving end of the linear guide rail (61). An installation cavity (71) is provided inside the movable seat (7). An auxiliary guide roller (9) is installed on one side of the movable seat (7). An anti-slip rubber layer is provided on the surface of the auxiliary guide roller (9).

3. A positioning device for installing a sleeve valve assembly according to claim 2, characterized in that: The tube body calibration and pressure fastening unit also includes a lubrication part, which includes a lubricating fluid tank (8). The lubricating fluid tank (8) is embedded in the mounting cavity (71). A fixing frame (81) is installed on the top of the lubricating fluid tank (8). A first spray pipe (82) is connected to the top of the lubricating fluid tank (8). One end of the first spray pipe (82) is installed through the fixing frame (81). A first spray head (821) is provided at one end of the first spray pipe (82). A second spray pipe (83) is symmetrically installed on both sides of the lubricating fluid tank (8). A second spray head (831) is installed at one end of the second spray pipe (83).

4. A positioning device for installing a sleeve valve tube assembly according to claim 3, characterized in that: The angle between the first spray pipe (82) and the first spray pipe (82) is set to 60°.

5. A positioning device for installing a sleeve valve assembly according to claim 3, characterized in that: The angle between the second nozzle (831) and the second nozzle (83) is set to 30°.

6. A positioning device for installing a sleeve valve assembly according to claim 1, characterized in that: The pressurized unloading structure includes a movable cylinder (3), which is installed between adjacent heightening frames (2). A through hole is provided at the bottom of the assembly cavity (11). A column top block (31) is installed on the output end of the movable cylinder (3), and the column top block (31) is movably inserted into the through hole.

7. A positioning device for installing a sleeve valve assembly according to claim 1, characterized in that: A rubber sleeve (52) is installed at the bottom of the fixing ring (5), and an elastic rubber ring (51) is installed at the bottom of the rubber sleeve (52). The cross-sectional area of ​​the elastic rubber ring (51) is smaller than that of the fixing ring (5).

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