Press fitting device for valve string production

Abstract

The utility model provides a press fitting device for valve string production. The press fitting device comprises a base, a pressing assembly, a limiting assembly and a guiding assembly. The base is internally provided with a containing cavity for the guide assembly to slide and contain, the guide assembly is in sliding connection with the base, and the guide assembly forms a slope for a valve string to move when being in a drawn-out state; the limiting assembly is arranged on the upper surface of the base and used for limiting a valve string. The downward pressing assembly is arranged above the base and used for jacking and pressing the valve string placed in the limiting assembly. According to the press-fitting device for valve string production, full guiding can be conducted during valve string assembling, and assembling, disassembling and moving of the valve string are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary tools for valve string assembly, specifically, to a press-fitting device for valve string production. Background Technology

[0002] A valve string is a device composed of multiple parts arranged in a specific order and connection method. These valves work together to achieve more complex control functions of fluids. For example, in some chemical processes or water supply systems, valve strings can precisely regulate parameters such as flow rate and pressure. During valve string assembly, multiple parts are typically placed alternately, with disc springs added to the ends, and finally secured with press-fit bolts. However, during press-fitting, the valve string is subjected to continuous force, causing misalignment and affecting the press-fitting effect.

[0003] Patent CN109277802B discloses a valve string pressing device and pressing method, including a base with a pressing area, and a pressing assembly for pressing valve strings slidably mounted on the base in the horizontal direction. The pressing assembly has a pressing position for pressing valve strings that are vertically stacked in the pressing area and a clearance position for avoiding the valve strings. The base is provided with a limiting member that restricts the upward movement of the pressing assembly when it is in the pressing position. The limiting member is a U-shaped limiting member fixed on the base with its opening facing the horizontal direction. The pressing assembly has a limiting engagement portion that extends into a U-shaped limiting block when in the pressing position. The U-shaped limiting block limits the upward movement of the pressing assembly by restricting the limiting engagement portion. The pressing assembly is a gantry-type pressing assembly, including two gantry columns and a crossbeam connecting the two gantry columns. The base is equipped with a slide rail, and the bottom of the gantry columns has a transition plate that extends into the U-shaped limiting block when the pressing assembly is in the pressing position. The bottom of the transition plate has a slider that mates with the slide rail, and the transition plate constitutes the limiting engagement portion. This pressing device does not require adjusting the height of the valve plate and radiator via a slider, resulting in high pressing efficiency. However, the disclosed structure of this device has a certain height difference, which is inconvenient for the installation, removal, and movement of the valve string. Utility Model Content

[0004] In order to provide sufficient guidance during valve string assembly and facilitate valve string loading, unloading and movement, the technical solution adopted by this utility model is: a pressure fitting device for valve string production, including a base, a pressing component, a limiting component and a guiding component;

[0005] The base has a storage cavity for the sliding and storage of the guide component. The guide component is slidably connected to the base, and when the guide component is in the withdrawn state, it forms a ramp for the valve string to move.

[0006] The limiting component is disposed on the upper surface of the base and is used to limit the valve string.

[0007] The pressing component is disposed above the base and is used to press down on the valve string placed inside the limiting component.

[0008] Based on the above, in order to facilitate storage and pull-out, and at the same time achieve full contact with the ground, the guide assembly includes a guide plate, a fixed rod, and a rotation damper set at the front end of the fixed rod. The front end of the guide plate forms an inclined surface that contacts the ground, and the two sides of the guide plate are provided with sliding grooves that slide in cooperation with the rotation damper.

[0009] Based on the above, in order to reduce the friction during valve string movement, multiple rolling bars are rolled on the upper surface of the guide plate.

[0010] Based on the above, in order to position and limit the valve string during pressing and assembly, the limiting assembly includes a limiting plate formed on the upper surface of the base and a plurality of placement slots, the limiting plate being located around the placement slots.

[0011] Based on the above, in order to achieve non-damaging downward pressure, the downward pressure assembly includes a support frame connected to the base, a hydraulic cylinder is provided at the top of the support frame, a push rod is provided at the telescopic end of the hydraulic cylinder, a sleeve is provided at the top of the push rod, and a circular pressure plate is connected to the top of the sleeve. The hydraulic cylinder presses the valve string through the circular pressure plate.

[0012] Based on the above, the limiting plate is a side U-shaped limiting plate, and the opening of the side U-shaped limiting plate is set towards the guide component.

[0013] Based on the above, in order to improve the flexibility of the device and lock it during the pressing operation, the lower surface of the base is provided with multiple pulley mounting seats, on which pulleys are mounted. Each pulley has several slots, and the square plate of the pulley mounting seat is provided with a rod for inserting into the slot. The rod cooperates with the slot to lock the pulley.

[0014] Based on the above, the front end of the base is also vertically slidably provided with an insert plate, one end of which is inserted into the storage cavity. The insert plate is used to lock the guide plate in the pulled-out state.

[0015] Based on the above, a buffer pad is provided on the inner side wall of the limiting plate.

[0016] This utility model has substantial features and advancements compared to existing technologies. Specifically, it provides a press-fitting device for valve string production. A sliding groove is formed in the side wall of the base; a guide plate is slidably connected to the groove via a fixed rod and a rotation damper, and multiple rolling rods are rotatably connected to the surface of the guide plate. This allows the guide plate to increase the ease of valve string movement and provides guidance during valve string placement. Simultaneously, when the valve string contacts the rolling rods, the rolling rods rotate, reducing the contact between the valve string and the rolling rods, allowing the valve string to quickly pass through the guide plate to the surface of the base, thereby reducing resistance during valve string movement.

[0017] Furthermore, by adding a placement slot, the valve string can be guided during placement, thereby increasing the placement speed and reducing adjustment time. Simultaneously, the limit plate also blocks the movement of the valve string, reducing force-induced positional shift and enhancing the press-fit effect of the push rod.

[0018] Furthermore, by adding a circular pressure plate, the contact between the push rod and the valve string can be increased when the push rod presses the valve string, and the pushing force of the push rod can be distributed to the top of the valve string, making the valve string more uniformly stressed, thereby increasing the average stress on the valve plate.

[0019] Therefore, this pressure fitting device for valve string production can provide sufficient guidance during valve string assembly, facilitating the loading, unloading, and movement of the valve string. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a pressure fitting device for valve string production provided by this utility model.

[0021] Figure 2 This is a schematic diagram of the bottom structure of a pressure fitting device for valve string production provided by this utility model.

[0022] Figure 3 This is a partial structural diagram of a pressure fitting device for valve string production provided by this utility model.

[0023] In the diagram: 1. Slide groove; 2. Fixed rod; 3. Base; 4. Pulley; 5. Support frame; 6. Limiting plate; 7. Buffer pad; 8. Circular pressure plate; 9. Hydraulic cylinder; 10. Placement slot; 11. Insert plate; 12. Rolling rod; 13. Guide plate; 14. Push rod; 15. Sleeve; 16. Slot; 17. Pulley mounting seat; 18. Storage cavity; 19. Square plate; 20. Insert rod; 21. Rotation damper. Detailed Implementation

[0024] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0025] Example 1

[0026] This embodiment provides a press-fitting device for valve string production, such as... Figure 1 , Figure 2 , Figure 3 As shown, the system includes a base 3, a pressing component, a limiting component, and a guiding component. The base 3 has a storage cavity 18 for the sliding and retraction of the guiding component. The guiding component is slidably connected to the base, and when withdrawn, it forms a ramp for the movement of the valve string. The limiting component is located on the upper surface of the base 3 and is used to limit the movement of the valve string. The pressing component is located above the base 3 and is used to press down on the valve string placed within the limiting component.

[0027] In this embodiment, to facilitate storage and pull-out, and to achieve full contact with the ground, the guiding assembly includes a guide plate 13, a fixing rod 2, and a rotation damper 21 disposed at the front end of the fixing rod 2. The front end of the guide plate 13 forms an inclined surface that contacts the ground, and the two sides of the guide plate 13 are provided with grooves 1 that slide in cooperation with the rotation damper 21.

[0028] Example 2

[0029] This embodiment provides a press-fitting device for valve string production. The main difference from Embodiment 1 is that, in order to reduce the friction during valve string movement, multiple rolling bars 12 are rolled on the upper surface of the guide plate 13.

[0030] Example 3

[0031] This embodiment provides a press-fitting device for valve string production. The main difference from Embodiment 1 is that, in this embodiment, to improve the device's flexibility and to lock it during pressing, the lower surface of the base 3 is provided with multiple pulley mounting seats 17. Pulleys 4 are mounted on the pulley mounting seats 17. Several slots 16 are provided on the pulleys 4, and the square plate 19 of the pulley mounting seat 17 is provided with a rod 20 for inserting into the slots 16. The rod 20 cooperates with the slots 16 to lock the pulleys 4.

[0032] Example 4

[0033] This embodiment provides a press-fitting device for valve string production. The main difference from Embodiment 1 is that, in this embodiment, to position and limit the valve string during pressing and assembly, the limiting component includes a limiting plate 6 formed on the upper surface of the base 3 and multiple placement slots 10. The limiting plate 6 is located around the placement slots 10. The limiting plate 6 is a side-U-shaped limiting plate, with its opening facing the guide component. A buffer pad 7 is provided on the inner wall of the limiting plate 6.

[0034] Example 5

[0035] This embodiment provides a pressing device for valve string production. The main difference from Embodiment 1 is that, in this embodiment, in order to achieve non-damaging pressing, the pressing assembly includes a support frame 5 connected to the base 3. A hydraulic cylinder 9 is provided on the top of the support frame 5. A push rod 14 is provided on the telescopic end of the hydraulic cylinder 9. A sleeve 15 is provided on the top of the push rod 14. A circular pressure plate 8 is connected to the top of the sleeve 15. The hydraulic cylinder 9 presses the valve string through the circular pressure plate 8.

[0036] Example 6

[0037] This embodiment provides a press-fitting device for valve string production. The main difference from Embodiment 1 is that, in this embodiment, the front end of the base 3 is also vertically slidably provided with an insert plate 11. One end of the insert plate 11 is inserted into the receiving cavity 18. The insert plate 11 is used to lock the guide plate 13 in the withdrawn state.

[0038] Specifically, the operation steps of the pressure fitting device for valve string production provided by this utility model are as follows:

[0039] First, the valve seat is placed into the middle of the base through the opening of the limiting plate, and then the valve string parts are assembled in sequence. During assembly, the valve string is pressed in by the push rod.

[0040] When placing the valve seat, the bottom bolt is inserted into the placement groove 10 to position the valve seat, thereby reducing the alignment time with the push rod after placement. Then, the hydraulic cylinder 9 is activated, causing the push rod 14 to move closer to the top of the valve string. As the push rod 14 continuously applies force to the top of the valve string, the inside of the valve string is continuously compressed. When the valve string moves under pressure, it contacts the limiting plate 6, which then blocks the movement of the valve string under pressure.

[0041] Before pressing the valve string, the sleeve 15 is first installed onto the push rod 14. Then, during the pressing of the valve string, the circular pressure plate 8 will contact the top of the valve string. At this time, the circular pressure plate 8 will distribute the pushing force of the push rod 14, thereby increasing the uniformity of the force inside the valve string. Since the valve string consists of multiple parts, moving it to the base is too time-consuming. When placing the valve string, the guide plate can be pulled out from inside the slide groove so that the end of the guide plate contacts the ground.

[0042] As the guide plate 13 approaches the ground, the rotary damper 21 rotates, causing the guide plate 13 to change angle. Simultaneously, after the guide plate 13 completes its rotation, the rotary damper 21 generates resistance on the guide plate, allowing the valve string to move through the guide plate 13 to the base surface. As the valve string passes the guide plate 13, it contacts the rolling rod 12, which rotates due to the movement of the valve string, thereby accelerating the movement of the valve string.

[0043] When the base needs to be moved, first pull out the insert rod 20 inside the insert 16. When pulling out the insert rod 20, it will first leave the pulley's interior and then be pulled out through the slot 16, thus unlocking the pulley. The base can then be pushed to move. During base movement, the circular plate will adjust the pulley's direction of movement according to the direction of force. When the guide plate needs to be used, the square slot must first be lifted to unlock the slide. The guide plate can then be pulled out from inside the slide to assist in the movement of the valve train.

[0044] After the guide plate is stored, the insert plate 11 can be inserted into the storage cavity 18 to block the storage cavity 18 and prevent the guide plate from sliding out. After the valve string is placed, it will come into contact with the limiting plate under pressure. At this time, the buffer pad 7 will be located between the limiting plate and the valve string, thereby reducing the direct contact between the valve string and the limiting plate.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A press-fitting device for valve string production, characterized by: The utility model provides a valve string pressing device, including base, press down subassembly, limiting component, guide component, The guide component is slidably connected with the base, and the guide component forms a slope for the valve string to move in the extracted state; The limiting component is arranged on the upper surface of the base and is used for limiting the valve string; The press down subassembly is arranged above the base and is used for pressing the valve string placed in the limiting component.

2. The press fitting device for valve string production according to claim 1, characterized in that: The guide component includes a guide plate, a fixed rod, and a rotary damper arranged at the front end of the fixed rod.

3. The press fitting device for valve string production according to claim 2, characterized in that: The front end of the guide plate forms an inclined surface that is in contact with the ground.

4. The press fitting device for valve string production according to claim 1 or 2 or 3, characterized in that: A plurality of rolling bars are arranged on the upper surface of the guide plate.

5. The press fitting device for valve string production according to claim 4, characterized in that: The limiting component includes a limiting plate and a plurality of placing grooves arranged on the upper surface of the base.

6. The press fitting device for valve string production according to claim 5, characterized in that: The press down subassembly includes a support frame connected with the base.

7. The press fitting device for valve string production according to claim 2 or 3, characterized in that: The support frame is provided with a hydraulic cylinder at the top.

8. The press fitting device for valve string production according to claim 7, characterized in that: The hydraulic cylinder is provided with a push rod at the telescopic end.

9. The press fitting device for valve string production according to claim 6, characterized in that: The push rod is provided with a sleeve at the top end. The sleeve is connected with a circular pressing plate at the top end. The hydraulic cylinder presses the valve string through the circular pressing plate. The limiting plate is a side U-shaped limiting plate. The opening direction of the side U-shaped limiting plate faces the guide component. The base is provided with a plurality of pulley mounting seats at the lower surface. The pulley mounting seat is provided with a plurality of insertion grooves. The pulley mounting seat is provided with an insertion rod for inserting into the insertion grooves. The insertion rod cooperates with the insertion grooves to lock the pulley. The front end of the base is also vertically slidably provided with an insertion plate. One end of the insertion plate is inserted into the receiving cavity. The insertion plate is used for locking the guide plate in the extracted state. The inner side wall of the limiting plate is provided with a buffer pad.

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