Quick-opening blind plate structure

Abstract

The utility model discloses a quick-opening blind plate structure, which relates to a pipeline connecting device technology and comprises a blind plate cover and a blind plate seat, the blind plate seat is connected with the end part of a pipeline, the blind plate cover is covered with the blind plate seat, a gland assembly is arranged on the outer side of the blind plate cover, a plurality of groups of positioning rods are arranged on the inner side of the blind plate cover, and the positioning rods are arranged on the blind plate cover. An opening and closing mechanism is arranged between the blind plate cover and the blind plate seat, the outer edges of the blind plate cover and the blind plate seat are sleeved with hoops, and a driving mechanism is arranged between the hoops and the blind plate seat. According to the design scheme of the utility model, the blind plate cover of the motor is rotated to the blind plate seat, and the blind plate cover covers the blind plate seat through the matching of the positioning hole and the positioning rod, so that the friction and collision are reduced, the service life is prolonged, the third hydraulic cylinder extends, the wedge-shaped block is inserted into the wedge-shaped hole, the first hoop and the second hoop are locked, and the blind plate cover is pressed on the blind plate seat. Installation is convenient, manual operation is not needed, and sealing performance is high.

Description

Technical Field

[0001] The utility model relates to the technology of pipeline connection devices, in particular to a quick-opening blind plate structure. Background Art

[0002] A quick-opening blind plate is a mechanical device used for circular openings of pressure pipelines and pressure vessels, which can achieve quick opening and closing. It can quickly open and close the end covers of pig receivers, filters and other pressure-bearing equipment, and can also replace the flange covers on pipelines or containers that are frequently opened and closed in oil refining, chemical industry, medical treatment, papermaking, national defense, and water supply and drainage projects.

[0003] The quick-opening blind plates in the prior art are usually manually opened and closed. When operating some blind plates with larger diameter specifications, it is rather inconvenient. Moreover, due to the weight of the blind plate, it is very laborious to adjust the position of the blind plate, with low efficiency. Friction and bumps occur during the alignment of the blind plate, affecting the sealing performance of the blind plate when it is closed, and causing a series of problems. Summary of the Utility Model

[0004] In order to overcome the above-mentioned defects existing in the prior art, the utility model provides a quick-opening blind plate structure.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a quick-opening blind plate structure, including a blind plate cover and a blind plate seat. The blind plate seat is connected to the end of the pipeline, the blind plate cover covers the blind plate seat, a gland assembly is arranged on the outer side of the blind plate cover, a plurality of positioning rods are arranged on the inner side of the blind plate cover, an opening and closing mechanism is arranged between the blind plate cover and the blind plate seat, a clamp is sleeved on the outer edges of the blind plate cover and the blind plate seat, and a driving mechanism is arranged between the clamp and the blind plate seat.

[0006] Further, a boss is arranged in the blind plate seat, a positioning hole is arranged on the boss, the positioning hole matches the positioning rod and is circumferentially and evenly arranged on the boss, and the end of the positioning rod is chamfered.

[0007] Further, the opening and closing mechanism includes a first hydraulic cylinder, the first hydraulic cylinder is arranged perpendicular to the blind plate cover and the output end is fixedly connected to the outer side of the blind plate cover. The first hydraulic cylinder is fixedly arranged at one end of a mounting plate, the other end of the mounting plate is fixedly connected to the output shaft of a motor through a rotating shaft, and the motor is fixedly installed on the side wall of the blind plate seat through a bracket.

[0008] Further, a guide rod is arranged on the blind plate cover, the guide rod is arranged parallel to the first hydraulic cylinder and the guide rod is slidably connected to the through hole on the mounting plate.

[0009] Further, the clamp includes a first clamp and a second clamp. One end of the first clamp and the second clamp are respectively rotatably connected to the rotating shaft, and the other end is provided with mating engaging teeth. The engaging teeth are arranged on the side close to the motor. The rotating shaft is fixedly connected to the mounting bracket, and the mounting bracket is fixed on the side wall of the blind plate seat.

[0010] Further, the driving mechanism includes a second hydraulic cylinder. The output end of the second hydraulic cylinder is fixedly connected to a C-shaped connecting block. The two ends of the C-shaped connecting block are respectively rotatably connected to the first clamp and the second clamp. The second hydraulic cylinder is fixed on the mounting bracket.

[0011] Further, the gland assembly includes a plurality of third hydraulic cylinders. The third hydraulic cylinders are arranged on the outside of the blind plate cover along the radial direction of the blind plate cover. The output end of the third hydraulic cylinder is fixedly connected to a wedge block. The wedge block is matched with a wedge hole. The wedge holes are uniformly arranged at the first clamp, the second clamp, and the engaging teeth of the first clamp and the second clamp.

[0012] The beneficial effect of the present utility model is that in the design scheme of the present utility model, the motor drives the mounting plate to rotate, so that the blind plate cover rotates to the blind plate seat. The first hydraulic cylinder extends. Through the cooperation of the positioning hole and the positioning rod, the blind plate cover is covered on the blind plate seat. Subsequently, the second hydraulic cylinder extends to drive the first clamp and the second clamp to rotate around the rotating shaft, so that the first clamp and the second clamp are closed, locking the blind plate cover and the blind plate seat. The third hydraulic cylinder extends, so that the wedge block is inserted into the wedge hole, locking the first clamp and the second clamp, pressing the blind plate cover tightly on the blind plate seat. The installation is convenient, without manual operation. The blind plate cover can be quickly adjusted to the coaxial position of the blind plate seat, reducing friction and bumping, prolonging the service life, and pressing the blind plate cover tightly on the blind plate seat to enhance the sealing performance. Description of the Drawings

[0013] The following further describes the present utility model in conjunction with the drawings and embodiments.

[0014] Figure 1 is a schematic diagram of the present utility model;

[0015] Figure 2 is a top view of the present utility model;

[0016] Figure 3 is a schematic diagram of the blind plate cover of the present utility model;

[0017] Figure 4 is a schematic diagram of the blind plate seat of the present utility model;

[0018] Figure 5 is a schematic diagram of the engaging teeth of the present utility model;

[0019] Figure 6 is a schematic diagram of the wedge block and the wedge hole of the present utility model.

[0020] In the figure, 1. blind flange cover, 2. blind flange seat, 3. positioning rod, 4. boss, 5. positioning hole, 6. first hydraulic cylinder, 7. mounting plate, 8. rotating shaft, 9. motor, 10. guide rod, 11. first clamp, 12. second clamp, 13. rotating shaft, 14. engaging teeth, 15. mounting bracket, 16. second hydraulic cylinder, 17. C-shaped connecting block, 18. third hydraulic cylinder, 19. wedge block, 20. wedge hole. Detailed implementation manners

[0021] To more clearly illustrate the technical solution of the present utility model, the present utility model will be further described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only one embodiment of the present utility model. For those of ordinary skill in the art, without creative efforts, other embodiments obtained based on this drawing and embodiment all fall within the protection scope of the present utility model.

[0022] As Figures 1 to 6 shown, a quick-opening blind flange structure includes a blind flange cover 1 and a blind flange seat 2. The blind flange seat 2 is connected to the end of the pipeline. The blind flange cover 1 covers the blind flange seat 2. A gland assembly is provided on the outer side of the blind flange cover 1. A plurality of groups of positioning rods 3 are provided on the inner side of the blind flange cover 1. An opening and closing mechanism is provided between the blind flange cover 1 and the blind flange seat 2. Clamps are sleeved on the outer edges of the blind flange cover 1 and the blind flange seat 2. A driving mechanism is provided between the clamp and the blind flange seat 2.

[0023] As Figure 2 and Figure 4 shown, a boss 4 is provided in the blind flange seat 2. A positioning hole 5 is provided on the boss 4. The positioning hole 5 matches the positioning rod 3 and is circumferentially and uniformly arranged on the boss 4. The end of the positioning rod 3 is chamfered. Through the cooperation of the positioning hole 5 and the positioning rod 3, the blind flange seat 2 and the blind flange cover 1 are concentric.

[0024] As Figure 1 and Figure 2 shown, the opening and closing mechanism includes a first hydraulic cylinder 6. The first hydraulic cylinder 6 is vertically arranged with respect to the blind flange cover 1 and the output end is fixedly connected to the outer side of the blind flange cover 1. The first hydraulic cylinder 6 is fixedly arranged at one end of the mounting plate 7. The other end of the mounting plate 7 is fixedly connected to the output shaft of the motor 9 through a rotating shaft 8. The motor 9 is fixedly installed on the side wall of the blind flange seat 2 through a bracket. A guide rod 10 is provided on the blind flange cover 1. The guide rod 10 is arranged parallel to the first hydraulic cylinder 6 and the guide rod 10 is slidably connected to the through hole on the mounting plate 7. The motor 9 drives the mounting plate 7 to rotate through the rotating shaft 8. The blind flange cover 1 rotates to the blind flange seat 2 along with the mounting plate 7. The first hydraulic cylinder 6 extends. Through the cooperation of the positioning hole 5 and the positioning rod 3, the blind flange cover 1 is covered on the blind flange seat 2.

[0025] As Figure 1As shown, the clamp includes a first clamp 11 and a second clamp 12. One end of the first clamp 11 and the second clamp 12 is respectively rotatably connected to a rotating shaft 13, and the other end is provided with mating engaging teeth 14. The engaging teeth 14 are arranged on the side close to the motor 9, which facilitates the opening and closing of the clamp and avoids interference with the motor 9. The rotating shaft 13 is fixedly connected to a mounting bracket 15, and the mounting bracket 15 is fixed on the side wall of the blind plate seat 2.

[0026] As Figure 1 and Figure 2 shown, the driving mechanism includes a second hydraulic cylinder 16. The output end of the second hydraulic cylinder 16 is fixedly connected to a C-shaped connecting block 17. Both ends of the C-shaped connecting block 17 are respectively rotatably connected to the first clamp 11 and the second clamp 12. The second hydraulic cylinder 16 is fixed on the mounting bracket 15. When the second hydraulic cylinder 16 extends, it drives the first clamp 11 and the second clamp 12 to rotate around the rotating shaft 13, causing the first clamp 11 and the second clamp 12 to close and locking the blind plate cover 1 and the blind plate seat 2.

[0027] As Figure 5 and Figure 6 shown, the gland assembly includes a plurality of third hydraulic cylinders 18. The third hydraulic cylinders 18 are arranged on the outer side of the blind plate cover 1 along the radial direction of the blind plate cover 1. The output end of the third hydraulic cylinder 18 is fixedly connected to a wedge block 19. The wedge block 19 is matched with a wedge hole 20. The wedge holes 20 are uniformly arranged at the first clamp 11, the second clamp 12, and the engaging teeth 14 of the first clamp 11 and the second clamp 12, locking the first clamp 11 and the second clamp 12. At the same time, the wedge block 19 is inserted into the wedge hole 20, pressing the blind plate cover 1 against the blind plate seat 2.

[0028] When the present utility model is in use, the motor 9 drives the mounting plate 7 to rotate through the rotating shaft 8, causing the blind plate cover 1 to rotate to the position of the blind plate seat 2. The first hydraulic cylinder 6 extends, and through the cooperation of the positioning hole 5 and the positioning rod 3, the blind plate cover 1 is covered on the blind plate seat 2. Subsequently, the second hydraulic cylinder 16 extends to drive the first clamp 11 and the second clamp 12 to rotate around the rotating shaft 13, causing the first clamp 11 and the second clamp 12 to close and locking the blind plate cover 1 and the blind plate seat 2. The third hydraulic cylinder 18 extends, causing the wedge block 19 to be inserted into the wedge hole 20, locking the first clamp 11 and the second clamp 12, and pressing the blind plate cover 1 against the blind plate seat 2. It is convenient for installation, does not require manual operation, quickly adjusts the blind plate cover 1 to the coaxial position of the blind plate seat 2, reduces friction and bumps, extends the service life, and presses the blind plate cover 1 against the blind plate seat 2 to enhance the sealing performance.

[0029] The above embodiments are only exemplary embodiments of the present utility model and are not intended to limit the present utility model. The protection scope of the present utility model is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions within the essence and protection scope of the present utility model, and such modifications or equivalent substitutions should also be regarded as falling within the protection scope of the present utility model.

Claims

1. A quick-opening blind plate structure, comprising a blind plate cover (1) and a blind plate seat (2), characterized in that: The blind plate seat (2) is connected to the end of the pipeline, the blind plate cover (1) covers the blind plate seat (2), a pressure cover assembly is provided on the outer side of the blind plate cover (1), a plurality of positioning rods (3) are provided on the inner side of the blind plate cover (1), an opening and closing mechanism is provided between the blind plate cover (1) and the blind plate seat (2), a clamp is sleeved on the outer edge of the blind plate cover (1) and the blind plate seat (2), and a driving mechanism is provided between the clamp and the blind plate seat (2).

2. A quick-open blind plate structure according to claim 1, characterized in that: A boss (4) is provided inside the blind plate seat (2), and a positioning hole (5) is provided on the boss (4). The positioning hole (5) matches the positioning rod (3) and is evenly arranged circumferentially on the boss (4), and the end of the positioning rod (3) is chamfered.

3. A quick-open blind plate structure according to claim 1, characterized in that: The opening and closing mechanism comprises a first hydraulic cylinder (6), the first hydraulic cylinder (6) is arranged vertically on the blind plate cover (1) and the output end is fixedly connected to the outer side of the blind plate cover (1), the first hydraulic cylinder (6) is fixedly arranged on one end of a mounting plate (7), the other end of the mounting plate (7) is fixedly connected to the output shaft of a motor (9) via a rotating shaft (8), and the motor (9) is fixedly mounted on the side wall of the blind plate seat (2) via a bracket.

4. A quick-open blind plate structure according to claim 3, characterized in that: The blind plate cover (1) is provided with a guide rod (10), the guide rod (10) is arranged parallel to the first hydraulic cylinder (6), and the guide rod (10) is slidably connected to a through hole on the mounting plate (7).

5. A quick-open blind plate structure according to claim 1, characterized in that: The clamp comprises a first clamp (11) and a second clamp (12); one end of the first clamp (11) and the second clamp (12) are respectively rotatably connected to a rotating shaft (13); the other end is provided with mutually matching engaging teeth (14); the engaging teeth (14) are provided on a side close to the motor (9); the rotating shaft (13) is fixedly connected to a mounting frame (15); and the mounting frame (15) is fixed on a side wall of the blind plate seat (2).

6. A quick-open blind plate structure according to claim 1, characterized in that: The driving mechanism comprises a second hydraulic cylinder (16), the output end of the second hydraulic cylinder (16) is fixedly connected to a C-shaped connecting block (17), the two ends of the C-shaped connecting block (17) are rotatably connected to the first clamp (11) and the second clamp (12) respectively, and the second hydraulic cylinder (16) is fixed on a mounting frame (15).

7. A quick-open blind plate structure according to claim 1, characterized in that: The gland assembly comprises a plurality of third hydraulic cylinders (18), wherein the third hydraulic cylinders (18) are arranged on the outer side of the blind cover (1) along the radial direction of the blind cover (1), and the output end of the third hydraulic cylinder (18) is fixedly connected to a wedge block (19), wherein the wedge block (19) matches the wedge hole (20), and the wedge hole (20) is evenly arranged at the first clamp (11), the second clamp (12) and the engaging teeth (14) of the first clamp (11) and the second clamp (12).

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