Pushing sealing upper cover capable of resisting positive pressure inflation

Abstract

The utility model discloses a push sealing upper cover capable of resisting positive pressure inflation. The push sealing upper cover comprises a base and an upper cover body. According to the push sealing upper cover resistant to positive pressure inflation, the upper cover air cylinder pushes the upper cover to move along the upper portion of the guide rail, so that the upper cover is controlled to be opened and closed, manual pushing is not needed for opening and closing, the labor amount of workers is reduced, and use is convenient; through cooperation of a first upper cover door pressing screw, a second upper cover door pressing screw, a third upper cover door pressing screw and a positioning hexagon nut at the top of the base, the upper cover is locked and fixed, safety is high, after the upper cover covers the top of the base and is fixed, air inflation is conducted through an air inflation sealing ring, and the safety is high. Air pressure inside the inflatable sealing ring is increased and expands to block a gap between the upper cover and the base, and the sealing effect is more remarkable compared with an existing pressing sealing mode.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing equipment, in particular to a positive pressure inflation resistant push sealing upper cover. Background Art

[0002] With the widespread advocacy and in-depth practice of the concept of "energy conservation and emission reduction, reducing carbon emissions", a large amount of carbon dioxide will be generated during the traditional concrete mixing process. In order to absorb carbon dioxide and reduce the use of cement during the concrete mixing process, a corresponding carbon-fixing vacuum mixer has been developed. During the mixing process, it is necessary not only to evacuate the vacuum, but also to fill the cylinder with carbon dioxide to achieve a positive pressure mixing environment of 0.3Mpa. Under this positive pressure condition, the concrete can effectively absorb the carbon dioxide reaction and achieve the carbon fixation effect. However, due to the limited space of the site and the large area of ​​the feed port, it becomes particularly difficult to achieve positive pressure-resistant sealing. Traditional sealing methods often have problems such as poor sealing effect and cumbersome operation, and cannot meet the functional requirements of carbon-fixing vacuum mixers. In view of the need to further improve the sealing performance of the carbon-fixing vacuum mixer, a positive pressure inflation-resistant push-sealed cover was designed and developed. Summary of the invention

[0003] In view of the deficiencies in the prior art, the utility model provides a positive pressure inflation resistant push-sealed upper cover, which solves the problems of small space for use of the mixing equipment, large feed port area, difficult positive pressure resistant sealing, poor sealing effect and complicated operation.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positive pressure inflation resistant push-sealed upper cover, comprising a base and an upper cover, the top of the base and the positions on the left and right sides are both equipped with positioning hexagonal nuts, the top of the base and the position behind the left positioning hexagonal nut are equipped with an upper cover fixing clip, the top of the upper cover fixing clip is equipped with a second upper cover door pressing screw, the top of the base and the position below the upper cover fixing clip are equipped with a guide rail, the front and rear sides of the upper cover are equipped with upper cover rollers, and the upper cover is arranged by the upper cover rollers. Placed above the guide rail, a cylinder seat is installed on the top of the base and at the front side, an upper cover cylinder is installed on the right side of the cylinder seat through a cylinder pin shaft, the right end of the upper cover cylinder is connected to the right side wall of the upper cover through a bracket, an inflatable sealing ring is installed on the bottom of the upper cover, a third upper cover door screw is threadedly installed on the top of the upper cover and at the left side, the third upper cover door screw and the upper cover are directly padded with a flat washer, a first upper cover door screw is threadedly installed on the top of the upper cover and at the right side, a flat washer is padded between the first upper cover door screw and the upper cover.

[0005] Preferably, the upper cover roller comprises a fastening hexagonal nut, a spring washer, a flat washer, a pulley fixing plate, a wheel axle, a first hole retaining spring, a deep groove ball shaft, a spacer sleeve, a roller and a second hole retaining spring, and the right side wall of the pulley fixing plate is provided with a mounting hole, the left end of the wheel axle is inserted into the mounting hole, a flat washer is padded between the wheel axle and the pulley fixing plate, and the wheel axle extends to the left side of the mounting hole. One end of the wheel axle is padded with a flat washer and a spring washer, and a fastening hexagonal nut is installed at a position where the left end of the wheel axle is located outside the spring washer, and the two deep groove ball shafts are clamped inside the roller, and a spacer sleeve is provided between the two deep groove ball shafts, and the first hole retaining spring for limiting the position of the deep groove ball shaft is respectively provided inside the roller and located on the front and rear sides of the two deep groove ball shafts, and the roller is sleeved on the right end of the wheel axle through the matching sleeves of the two deep groove ball shafts, and the right end of the wheel axle extends to the front of the deep groove ball shaft on the front side, and the second hole retaining spring is clamped on the front end outer wall of the wheel axle to limit the deep groove ball shaft.

[0006] Preferably, a first extension plate is installed on the left side wall of the upper cover and at a middle position, a third upper cover door screw is installed above the first extension plate, a positioning hexagonal nut on the top of the base and located on the left side is located directly below the third upper cover door screw, a second extension plate is installed on the top of the upper cover and at a right side position, two first upper cover door screws are installed on the top of the second extension plate, and two positioning hexagonal nuts on the top of the base and located on the right side are respectively located directly below the two first upper cover door screws.

[0007] Preferably, two extended pressing plates are provided on the top of the upper cover and on the left side, and the extended pressing plates are located below the second upper cover door pressing screws.

[0008] Preferably, a limiting clamp is provided at the top of the base and between the guide rail and the upper cover cylinder, and the top end of the limiting clamp is bent inward and extends above the upper cover roller.

[0009] Preferably, a groove is provided on the top of the guide rail.

[0010] Compared with the prior art, the utility model provides a push-sealed upper cover resistant to positive pressure inflation, which has the following beneficial effects:

[0011] 1. The positive pressure-resistant push-sealed upper cover is pushed by the upper cover cylinder to move along the upper side of the guide rail, thereby controlling the upper cover to perform the switch operation. There is no need for manual push to switch, which reduces the labor of manual work and is easy to use;

[0012] 2. The positive pressure-resistant push-sealed upper cover controls the upper cover cylinder to pull the upper cover to move above the base for sealing. The upper cover is locked and fixed by the cooperation between the first upper cover door screw, the second upper cover door screw, the third upper cover door screw and the positioning hexagonal nut on the top of the base, which has high safety.

[0013] 3. The positive pressure-resistant push-sealed upper cover is covered on the top of the base and fixed. Then, the inflatable sealing ring is inflated. The air pressure inside the inflatable sealing ring increases and expands to seal the gap between the upper cover and the base. The sealing effect is more significant than the current press-sealing method. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the general assembly of a push-sealed upper cover resistant to positive pressure inflation described in the utility model;

[0015] Figure 2 It is a cross-sectional view of a push-sealed upper cover resistant to positive pressure inflation according to the utility model;

[0016] Figure 3 It is a schematic diagram of the structural decomposition of a push-sealed upper cover resistant to positive pressure inflation according to the utility model;

[0017] Figure 4 This is a schematic diagram of the exploded structure of the upper cover roller of the positive pressure inflation resistant push-sealed upper cover of the utility model;

[0018] Figure 5 The utility model is a schematic diagram of the open state of the push-sealed upper cover resistant to positive pressure inflation.

[0019] The symbols in the accompanying drawings are described as follows:

[0020] 1. Upper cover cylinder; 2. Upper cover roller; 21. Fastening hexagonal nut; 22. Spring washer; 23. Flat washer; 24. Pulley fixing plate; 25. Wheel axle; 26. Circlip for the first hole; 27. Deep groove ball bearing; 28. Spacer; 29. ​​Roller; 30. Circlip for the second hole; 3. Guide rail; 4. Upper cover; 5. First upper cover pressure screw; 6. Second upper cover pressure screw; 7. Third upper cover pressure screw; 8. Inflatable sealing ring; 9. Cylinder seat; 10. Cylinder pin shaft; 11. Upper cover fixing clip; 12. Base; 13. Positioning hexagonal nut. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figures 1 to 5The utility model provides a positive pressure inflation resistant push seal upper cover, comprising a base 12 and an upper cover 4, a positioning hexagonal nut 13 is installed at the top of the base 12 and at the left and right positions, a cover fixing clip 11 is installed at the top of the base 12 and at the rear side of the left positioning hexagonal nut 13, a second cover door pressing screw 6 is installed at the top of the cover fixing clip 11, a guide rail 3 is installed at the top of the base 12 and at the position below the cover fixing clip 11, and upper cover rollers 2 are installed at the front and rear sides of the upper cover 4, and the upper cover 4 is arranged above the guide rail 3 through the upper cover rollers 2, and the bottom A cylinder seat 9 is installed on the top of the seat 12 and at the front side, an upper cover cylinder 1 is installed on the right side of the cylinder seat 9 through a cylinder pin shaft 10, the right end of the upper cover cylinder 1 is connected to the right side wall of the upper cover 4 through a bracket, an inflatable sealing ring 8 is installed on the bottom of the upper cover 4, a third upper cover door screw 7 is threadedly installed on the top of the upper cover 4 and at the left side, the third upper cover door screw 7 and the upper cover 4 are directly padded with a flat washer 23, a first upper cover door screw 5 is threadedly installed on the top of the upper cover 4 and at the right side, a flat washer 23 is padded between the first upper cover door screw 5 and the upper cover 4.

[0023] Furthermore, the upper cover roller 2 includes a fastening hexagonal nut 21, a spring washer 22, a flat washer 23, a pulley fixing plate 24, an axle 25, a first hole retaining spring 26, a deep groove ball shaft 27, a spacer 28, a roller 29 and a second hole retaining spring 30. The right side wall of the pulley fixing plate 24 is provided with a mounting hole, the left end of the axle 25 is inserted into the mounting hole, a flat washer 23 is padded between the axle 25 and the pulley fixing plate 24, and the end of the axle 25 extending to the left side of the mounting hole is padded with a flat washer 23 and a spring washer 22, and the left end of the axle 25 is located outside the spring washer 22. A fastening hexagonal nut 21 is installed at the side position, two deep groove ball shafts 27 are clamped in the inside of the roller 29, a spacer sleeve 28 is arranged between the two deep groove ball shafts 27, and the inside of the roller 29 and the front and rear sides of the two deep groove ball shafts 27 are respectively provided with a first hole retaining spring 26 for limiting the position of the deep groove ball shaft 27, the roller 29 is sleeved on the right end of the wheel axle 25 through the matching sleeve of the two deep groove ball shafts 27, the right end of the wheel axle 25 extends to the front of the deep groove ball shaft 27 on the front side, and the second hole retaining spring 30 is clamped on the outer wall of the front end of the wheel axle 25 to limit the deep groove ball shaft 27.

[0024] Furthermore, a first extension plate is installed on the left side wall of the upper cover 4 and at the middle position, the third upper cover door screw 7 is installed above the first extension plate, the positioning hexagonal nut 13 on the top of the base 12 and on the left side is directly below the third upper cover door screw 7, and a second extension plate is installed on the top of the upper cover 4 and on the right side, two first upper cover door screws 5 are installed on the top of the second extension plate, and two positioning hexagonal nuts 13 on the top of the base 12 and on the right side are respectively located directly below the two first upper cover door screws 5. By rotating the first upper cover door screw 5 and the third upper cover door screw 7, the first upper cover door screw 5 and the third upper cover door screw 7 are moved downward to connect with the positioning hexagonal nuts 13 below them, thereby fixing the upper cover 4.

[0025] Furthermore, two extended pressure plates are provided on the top and on the left side of the upper cover 4, and the extended pressure plates are located below the second upper cover pressure screw 6. By rotating the second upper cover pressure screw 6, the bottom end of the second upper cover pressure screw 6 is controlled to move downward to press the extended pressure plates, thereby pressing and fixing the top and on the left side of the upper cover 4.

[0026] Furthermore, a limiting clamp is provided at the top of the base 12 and between the guide rail 3 and the upper cover cylinder 1. The top of the limiting clamp is bent inward and extends to the top of the upper cover roller 2. The limiting clamp is used to limit a certain distance on the top of the upper cover roller 2 to prevent the upper cover 4 from bouncing upward and causing danger due to high pressure inside when the upper cover 4 is released.

[0027] Furthermore, a groove is provided at the top of the guide rail 3, and the position of the upper cover roller 2 during sealing is positioned through the groove, so as to facilitate the control of the upper cover 4 to move accurately to the sealing position, and the pre-tightening function can also be achieved through the height difference.

[0028] When in use, the sealed upper cover is installed above the feeding port at the top of the stirring device. When opening, the upper cover cylinder 1 is controlled to extend, and the upper cover cylinder 1 drives the right end of the upper cover 4 to move to the right. The upper cover 4 slides to the right along the upper side of the guide rail 3 through the upper cover roller 2, so that the upper cover 4 slides to the right side of the base 12, so that raw materials can be added through the top opening of the base 12. After the addition is completed, the upper cover cylinder 1 is controlled to retract, and the upper cover cylinder 1 pushes the upper cover 4 to move to the left along the upper side of the guide rail 3. When the upper cover roller 2 rolls into the groove at the top of the guide rail 3, the upper cover 4 is moved downward for pre-tightening, and then by screwing the first upper cover door screw 5, the second upper cover door screw 6 and the third upper cover door screw 7, the bottom end of the second upper cover door screw 6 is installed on the top of the upper cover 4, and the first upper cover door screw 5 and the third upper cover door screw 7 are connected with the positioning hexagonal nut 13 above the base 12 below them, so as to fix the upper cover 4, and then the inside of the inflatable sealing ring 8 is inflated, and the air pressure inside the inflatable sealing ring 8 is increased to expand, and the gap between the upper cover 4 and the base 12 is blocked, so as to achieve the sealing function.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A push-sealed upper cover resistant to positive pressure inflation, comprising a base (12) and an upper cover (4), characterized in that: A positioning hexagonal nut (13) is installed at the top of the base (12) and at the left and right positions. A top cover fixing clamp (11) is installed at the top of the base (12) and at the rear side of the left positioning hexagonal nut (13). A second top cover door pressing screw (6) is installed at the top of the top cover fixing clamp (11). A guide rail (3) is installed at the top of the base (12) and at the position below the top cover fixing clamp (11). Top cover rollers (2) are installed at the front and rear sides of the top cover (4). The top cover (4) is arranged above the guide rail (3) through the top cover rollers (2). The top of the base (12) and at the front position A cylinder seat (9) is installed, and an upper cover cylinder (1) is installed on the right side of the cylinder seat (9) through a cylinder pin shaft (10). The right end of the upper cover cylinder (1) is connected to the right side wall of the upper cover (4) through a bracket. An inflatable sealing ring (8) is installed at the bottom of the upper cover (4). A third upper cover door screw (7) is threadedly installed at the top of the upper cover (4) and located on the left side. The third upper cover door screw (7) and the upper cover (4) are directly padded with a flat washer (23). A first upper cover door screw (5) is threadedly installed at the top of the upper cover (4) and located on the right side. A flat washer (23) is padded between the first upper cover door screw (5) and the upper cover (4).

2. The push-sealed upper cover resistant to positive pressure inflation according to claim 1, characterized in that: The upper cover roller (2) comprises a fastening hexagonal nut (21), a spring washer (22), a flat washer (23), a pulley fixing plate (24), a wheel axle (25), a first hole retaining spring (26), a deep groove ball shaft (27), a spacer (28), a roller (29) and a second hole retaining spring (30).

3. The push-sealed upper cover resistant to positive pressure inflation according to claim 2, characterized in that: The right side wall of the pulley fixing plate (24) is provided with a mounting hole, the left end of the wheel axle (25) is inserted into the mounting hole, a flat washer (23) is padded between the wheel axle (25) and the pulley fixing plate (24), one end of the wheel axle (25) extending to the left side of the mounting hole is padded with a flat washer (23) and a spring washer (22), a fastening hexagonal nut (21) is installed at the left end of the wheel axle (25) and at a position outside the spring washer (22), two deep groove ball shafts (27) are clamped in the interior of the roller (29), and a spacer (28) is arranged between the two deep groove ball shafts (27).

4. The push-sealed upper cover resistant to positive pressure inflation according to claim 3, characterized in that: A first hole retaining spring (26) for limiting the position of the deep groove ball shaft (27) is respectively arranged inside the roller (29) and located at the front and rear sides of the two deep groove ball shafts (27). The roller (29) is sleeved on the right end of the axle (25) through the cooperation of the two deep groove ball shafts (27). The right end of the axle (25) extends to the front of the deep groove ball shaft (27) on the front side. The second hole retaining spring (30) is clamped on the outer wall of the axle (25) near the front end to limit the deep groove ball shaft (27).

5. The push-seal upper cover resistant to positive pressure inflation according to claim 1, characterized in that: A first extension plate is installed on the left side wall of the upper cover (4) and at a middle position, a third upper cover door screw (7) is installed above the first extension plate, a positioning hexagonal nut (13) located on the top of the base (12) and on the left side is located directly below the third upper cover door screw (7), a second extension plate is installed on the top of the upper cover (4) and on the right side, two first upper cover door screws (5) are installed on the top of the second extension plate, and two positioning hexagonal nuts (13) located on the top of the base (12) and on the right side are respectively located directly below the two first upper cover door screws (5).

6. The push-sealed upper cover resistant to positive pressure inflation according to claim 1, characterized in that: Two extended pressing plates are arranged on the top of the upper cover (4) and on the left side, and the extended pressing plates are located below the second upper cover door pressing screw (6).

7. The push-sealed upper cover resistant to positive pressure inflation according to claim 1, characterized in that: A limiting clamp is provided at the top of the base (12) and between the guide rail (3) and the upper cover cylinder (1), and the top end of the limiting clamp is bent inward and extends above the upper cover roller (2).

8. The push-seal upper cover resistant to positive pressure inflation according to claim 1, characterized in that: A groove is provided on the top of the guide rail (3).

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