A concrete pump pipe blocking mechanism

Abstract

The utility model provides a kind of plugging mechanism of concrete pump pipe, including the outer tube being arranged in pump pipe output end, the output end of the outer tube is equipped with discharge pipe, the inner wall of the outer tube is equipped with inner cylinder piece moving along its length direction, the top of the inner cylinder piece is used to accept the concrete input into outer tube and transport concrete to the bottom of the outer tube;It further includes plugging part and linear power device, the linear power device is connected with the plugging part, for pushing the plugging part into the outer tube and pushing plugging part from the outer tube, to plugging the inner cylinder piece and remove the plugging of inner cylinder piece bottom;When conveying material, maximum limit clean concrete residue in discharge pipe, avoid concrete falling everywhere in the process of shifting pump pipe;Can be according to the need of use to clean silt ball or plugging part or entire plugging mechanism, and there is no fine small parts, small gap in plugging part, greatly improve cleaning efficiency and quality.

Description

Technical Field

[0001] This utility model relates to the field of sealing mechanism technology, specifically to a sealing mechanism for a concrete pump pipe. Background Technology

[0002] The statements herein provide only background information related to this invention and do not necessarily constitute prior art.

[0003] Construction projects often involve the flooring of large steel structure factory buildings. During the concrete pouring process, residual concrete material from the pump pipes can spill onto the already finished floor surface as the pump pipes move, causing unevenness. Construction workers need to clean up the spilled concrete material and smooth out the affected areas, resulting in poor surface quality and low construction efficiency.

[0004] In existing technology, a valve-like sealing mechanism is installed at the front end of the pump pipe. This mechanism blocks the inside of the pump pipe during concrete pouring at different locations, preventing excessive spillage of concrete during transport. The sealing mechanism is released when the pump pipe reaches the construction site. However, concrete is viscous, and the discharge pipe at the bottom of the sealing mechanism is often made of the same material as the pump pipe, so it can also be called a pump pipe. Concrete tends to adhere to and accumulate on the inner wall of the discharge pipe, causing concrete to fall everywhere during the transfer of the pump pipe, damaging the already finished floor surface and polluting the construction environment. Furthermore, the numerous small internal parts make disassembly and cleaning difficult. Utility Model Content

[0005] The main purpose of this utility model is to provide a sealing mechanism for concrete pump pipes.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows: a sealing mechanism for a concrete pump pipe includes an outer cylinder disposed at the output end of the pump pipe, the output end of the outer cylinder being provided with a discharge pipe, and an inner cylinder component that moves along its length on the inner wall of the outer cylinder, the top of the inner cylinder component being used to receive the concrete input into the outer cylinder and to transport the concrete to the bottom of the outer cylinder.

[0007] It also includes a sealing part and a linear power device, the linear power device being connected to the sealing part for pushing the sealing part into the outer cylinder and pushing the sealing part out of the outer cylinder, thereby sealing the inner cylinder and releasing the sealing of the bottom of the inner cylinder;

[0008] The sealing part is provided with a sludge-clearing chamber for the sludge-clearing ball to pass through. The sealing part is provided with a side opening and a bottom opening that communicate with the sludge-clearing chamber. When the sealing part seals the inner cylinder, the bottom opening of the sludge-clearing chamber is connected to the discharge pipe.

[0009] Furthermore, when the sealing part seals the inner cylinder, it is located below the inner cylinder. The sealing part includes a sealing plate and a sludge removal block that are fixedly connected at the top and bottom. The sealing plate is used to seal the bottom of the inner cylinder, and the sludge removal cavity is located inside the sludge removal block.

[0010] Furthermore, the lower opening of the sludge-clearing chamber corresponds to the upper opening of the discharge pipe, and the radius of the sludge-clearing ball is equal to the inner diameter of the discharge pipe.

[0011] Furthermore, the cross-section of the inner wall of the outer cylinder is rectangular, the sealing part matches the outer cylinder, and the side wall of the outer cylinder is provided with an opening a. When sealing, the sealing part passes through the opening a and seals inside the outer cylinder. When conveying materials, the inner cylinder moves downward and seals at the opening a.

[0012] Furthermore, the inner cylinder includes an inner cylinder, a handle, and an inclined surface. The outer wall of the inner cylinder is provided with the handle, and the inner wall of the outer cylinder is vertically provided with a long, narrow sliding hole for the handle to pass through. The top of the inner cylinder is provided with an inwardly inclined surface.

[0013] Furthermore, the cross-section of the outer contour of the inner cylinder is rectangular, and the inner cylinder is adapted to the outer cylinder; the cross-section of the inner contour of the inner cylinder is circular, and the inner cylinder is adapted to the pump pipe.

[0014] Furthermore, it also includes limiting cylinders and sliding rods arranged laterally on both sides of the outer cylinder. The sliding rods slide along the inner wall of the limiting cylinder. The outer wall of the sealing part is provided with a positioning groove with an opening facing downward. The sliding rods on both sides are fixedly connected by a connecting rod. A positioning block is fixedly provided at the end of the sliding rod away from the connecting rod. The positioning blocks on both sides control the displacement of the sealing part through the positioning groove.

[0015] Furthermore, the linear power device includes a lead screw, a second handle, and a lead screw nut. The lead screw is rotatably mounted on the outer wall of the outer cylinder. The end of the lead screw passes through the connecting rod and is provided with the second handle. The inner wall of the connecting rod is provided with a lead screw nut, which cooperates with the lead screw.

[0016] The beneficial effects of this utility model are reflected in:

[0017] This invention can simultaneously block and isolate the concrete above the sealing plate during each sealing process, while scraping and cleaning the concrete below the sealing plate. The outer contour of the sludge-removing ball fits snugly against the inner wall of the discharge pipe, maximizing the removal of concrete residue from the discharge pipe and preventing concrete from falling everywhere during the transfer of the pump pipe, thus protecting the already finished floor surface. The sludge-removing ball, the sealing part, or the entire sealing mechanism can be cleaned according to the needs of use, and the sealing part has no fine small parts or gaps, greatly improving cleaning efficiency and quality. Attached Figure Description

[0018] In the attached diagram:

[0019] Figure 1 This is a three-dimensional structural diagram of the entire utility model;

[0020] Figure 2 This is a three-dimensional structural diagram of the internal structure of this utility model;

[0021] Figure 3 This is a cross-sectional view of the present invention;

[0022] Figure 4 This is a bottom perspective view of the positioning groove in this utility model;

[0023] Figure 5 This is a three-dimensional sectional view of the inner cylinder component in this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Pump pipe; 2. Outer cylinder; 3. Discharge pipe; 4. Inner cylinder components; 5. Sealing part; 6. Dredging ball; 7. Dredging chamber; 8. Sliding hole; 9. Positioning groove;

[0026] 51. Sealing plate; 52. Dredging block;

[0027] 41. Inner cylinder; 42. Handle 1; 43. Incline;

[0028] 61. Limiting cylinder; 62. Slide rod; 63. Connecting rod; 64. Positioning block;

[0029] 71. Lead screw; 72. Handle 2. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of the utility model, and not all of them. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of the utility model without creative effort are within the scope of protection of the utility model.

[0031] See Figures 1 to 5 .

[0032] This utility model discloses a sealing mechanism for a concrete pump pipe, including an outer cylinder 2 disposed at the output end of a pump pipe 1, a discharge pipe 3 disposed at the output end of the outer cylinder 2, the top end of the outer cylinder 2 being connected to the pump pipe 1 via a flange, the bottom end of the outer cylinder 2 being connected to the discharge pipe 3 via a flange, and an inner cylinder 4 disposed on the inner wall of the outer cylinder 2, which moves along its length direction. The top of the inner cylinder 4 is used to receive the concrete input into the outer cylinder 2 and transport the concrete to the bottom of the outer cylinder 2.

[0033] It also includes a sealing part 5 and a linear power device, the linear power device being connected to the sealing part 5 for pushing the sealing part 5 into the outer cylinder 2 and pushing the sealing part 5 out of the outer cylinder 2, thereby sealing the inner cylinder 4 and releasing the sealing of the bottom of the inner cylinder 4;

[0034] The sealing part 5 is provided with a sludge-clearing cavity 7 for the sludge-clearing ball 6 to pass through. The sealing part 5 is provided with a side opening and a bottom opening that communicate with the sludge-clearing cavity 7. When the sealing part 5 seals the inner cylinder 4, the bottom opening of the sludge-clearing cavity 7 is connected to the discharge pipe 3.

[0035] Furthermore, when the sealing part 5 seals the inner cylinder 4, it is located below the inner cylinder 4. The sealing part 5 includes a sealing plate 51 and a sludge removal block 52 that are fixedly connected vertically. The sealing plate 51 is used to seal the bottom of the inner cylinder 4, and the sludge removal cavity 7 is located inside the sludge removal block 52.

[0036] Furthermore, the lower opening of the sludge removal chamber 7 corresponds to the upper opening of the discharge pipe 3, and the radius of the sludge removal ball 6 is equal to the inner diameter of the discharge pipe 3.

[0037] Furthermore, the cross-section of the inner wall of the outer cylinder 2 is rectangular, the sealing part 5 matches the outer cylinder 2, and the side wall of the outer cylinder 2 is provided with an opening a. When sealing, the sealing part 5 passes through the opening a and seals inside the outer cylinder 2. When conveying materials, the inner cylinder 4 moves downward to seal at the opening a.

[0038] Furthermore, the inner cylinder 4 includes an inner cylinder 41, a handle 42, and an inclined surface 43. The outer wall of the inner cylinder 41 is provided with a handle 42. The inner wall of the outer cylinder 2 is vertically provided with a long strip-shaped sliding hole 8 for the handle 42 to pass through. The top of the inner cylinder 41 is provided with an inclined surface 43 that is inclined inward to prevent concrete from accumulating on the top of the inner cylinder 41.

[0039] Furthermore, the cross-section of the outer contour of the inner cylinder 41 is rectangular, the inner cylinder 41 is adapted to the outer cylinder 2, the inner cylinder 41 and the outer cylinder 2 are tightly connected, the cross-section of the inner contour of the inner cylinder 41 is circular, and the inner cylinder 41 is adapted to the pump pipe 1.

[0040] Furthermore, it also includes limiting cylinders 61 and sliding rods 62 arranged laterally on both sides of the outer cylinder 2. The sliding rods 62 slide along the inner wall of the limiting cylinder 61. The outer wall of the sealing part 5 is provided with a positioning groove 9 with an opening facing downward. The sliding rods 62 on both sides are fixedly connected by a connecting rod 63. A positioning block 64 is fixedly provided at the end of the sliding rod 62 away from the connecting rod 63. The positioning blocks 64 on both sides control the displacement of the sealing part 5 through the positioning groove 9.

[0041] The discharge pipe 3 is made of the same material as the pump pipe 1. In order to improve the tightness of the seal, the outer cylinder 2 is made of rigid material. It is equivalent to cutting off a whole section of the pump pipe 1 from the front end and then installing a detachable outer cylinder 2 at the cut-off point. In the prior art, deformable materials are mostly used for the discharge pipe 3 to facilitate feeding.

[0042] The linear power device includes a lead screw 71, a second handle 72, and a lead screw nut. The lead screw 71 is rotatably mounted on the outer wall of the outer cylinder 2. The end of the lead screw 71 passes through the connecting rod 63 and is provided with a second handle 72. The inner wall of the connecting rod 63 is provided with a lead screw nut, which cooperates with the lead screw 71.

[0043] The linear power unit controls the sealing section 5 to perform sealing or material conveying operations. The power unit can be a cylinder, an electric push rod, or a screw 71, a handle 72, and a screw nut that work together. The linear power unit includes a screw 71, a handle 72, and a screw nut. The screw 71 is rotatably mounted on the outer wall of the outer cylinder 2. The end of the screw 71 passes through the connecting rod 63 and is provided with a handle 72. The screw nut is provided on the inner wall of the connecting rod 63 and works in conjunction with the screw 71.

[0044] In practice, during installation, the top of the outer cylinder 2 is connected to the front end of the pump pipe 1 through a flange, and the bottom of the outer cylinder 2 is connected to the discharge pipe 3 through a flange. The sealing part 5 is located outside the inner cylinder 41 and cannot block the inner cylinder 41. The end of the sealing part 5 near the outer cylinder 2 rests on the bottom surface of the opening a. The sealing part 5 is supported by the positioning block 64 and the bottom surface of the opening a. Therefore, when the sealing of the bottom of the inner cylinder 4 is released, the sealing part 5 is not completely separated from the outer cylinder 2.

[0045] During material conveying, the handle 42 is pulled down along the sliding hole 8. The handle 42 drives the inner cylinder 4 to move down along the inner wall of the outer cylinder 2 until the inner cylinder 41 is sealed at the opening a. During this process, the handle 42 is always located above the sealing part 5. The concrete is discharged outward in sequence through the pump pipe 1, the top of the outer cylinder 2, the inner cylinder 4, the bottom of the outer cylinder 2 and the discharge pipe 3.

[0046] During sealing, the external power supply to the pump pipe 1 stops delivering concrete. Pulling handle 42 upwards opens opening a. Rotating handle 72 causes the lead screw 71 to rotate synchronously. The lead screw 71 engages with the lead screw nut on the inner wall of the connecting rod 63, thereby driving the connecting rod 63 and the sliding rod 62. The sliding rod 62 then moves along the limiting cylinder 61. Through the positioning block 64 and positioning groove 9, the sliding rod 62 drives the sealing part 5 to move synchronously, allowing the sealing part 5 to pass through opening a and enter the outer cylinder 2. The sealing plate 51... The sealing is performed to prevent the concrete above the sealing plate 51 from falling further. The sludge removal ball 6 is then placed into the sludge removal chamber 7 through the side opening. The sludge removal ball 6 falls due to its own weight. After passing through the lower opening of the sludge removal chamber 7 and the discharge pipe 3, the sludge removal ball 6 leaves the discharge pipe 3, thereby scraping off the concrete on the side wall of the discharge pipe 3. This cleans the concrete at the bottom of the sealing plate 51 and prevents the concrete from falling during the transfer process. When it is necessary to continue conveying material, the sealing part 5 can be reset by turning the handle 2 72 in the opposite direction.

[0047] During cleaning, the sludge-removing ball 6 can be cleaned separately, the sealing part 5 can be cleaned separately, or the entire sealing mechanism can be disassembled for cleaning. Specifically: the sludge-removing ball 6 can be cleaned after it comes out of the discharge pipe 3; in the unsealed state, pull the sealing part 5 upward to separate the positioning groove 9 of the sealing part 5 from the positioning block 64, and the sealing part 5 can be removed for cleaning. The sealing part 5 has no fine small parts or gaps, making it easy to clean; detach the flange connection of the outer cylinder 2, and the entire sealing mechanism can be completely removed from the pump pipe 1 for cleaning. The sludge-removing ball, the sealing part, or the entire sealing mechanism can be cleaned according to the needs of use, and the sealing part has no fine small parts or gaps, which greatly improves the cleaning efficiency and quality.

[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0049] It should be noted that if the utility model embodiment involves directional indicators (such as up and down), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0050] Furthermore, the meaning of "and / or" throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that simultaneously satisfies A and B. Additionally, if the utility model embodiments involve descriptions of "first," "second," etc., these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" can explicitly or implicitly include at least one of those features. Furthermore, "multiple" refers to two or more. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by the utility model.

Claims

1. A sealing mechanism for a concrete pump pipe, characterized in that, It includes an outer cylinder (2) set at the output end of the pump pipe (1), the output end of the outer cylinder (2) is provided with a discharge pipe (3), the inner wall of the outer cylinder (2) is provided with an inner cylinder component (4) that moves along its length direction, the top of the inner cylinder component (4) is used to receive the concrete input into the outer cylinder (2) and transport the concrete to the bottom of the outer cylinder (2); It also includes a sealing part (5) and a linear power device, the linear power device being connected to the sealing part (5) for pushing the sealing part (5) into the outer cylinder (2) and pushing the sealing part (5) out of the outer cylinder (2), thereby sealing the inner cylinder (4) and releasing the sealing of the bottom of the inner cylinder (4); The sealing part (5) is provided with a sludge removal cavity (7) for the sludge removal ball (6) to pass through. The sealing part (5) is provided with a side opening and a bottom opening that communicate with the sludge removal cavity (7). When the sealing part (5) seals the inner cylinder (4), the bottom opening of the sludge removal cavity (7) is connected to the discharge pipe (3).

2. The sealing mechanism for the concrete pump pipe according to claim 1, characterized in that, When the sealing part (5) seals the inner cylinder (4), it is located below the inner cylinder (4). The sealing part (5) includes a sealing plate (51) and a sludge removal block (52) that are fixedly connected at the top and bottom. The sealing plate (51) is used to seal the bottom of the inner cylinder (4). The sludge removal cavity (7) is located inside the sludge removal block (52).

3. The sealing mechanism for the concrete pump pipe according to claim 2, characterized in that, The lower opening of the sludge removal chamber (7) corresponds to the upper opening of the discharge pipe (3), and the radius of the sludge removal ball (6) is equal to the inner diameter of the discharge pipe (3).

4. The sealing mechanism for the concrete pump pipe according to claim 1, characterized in that, The cross-section of the inner wall of the outer cylinder (2) is rectangular. The sealing part (5) matches the outer cylinder (2). The side wall of the outer cylinder (2) is provided with an opening a. When sealing, the sealing part (5) passes through the opening a and seals inside the outer cylinder (2). When conveying materials, the inner cylinder part (4) moves downward and seals at the opening a.

5. The sealing mechanism for the concrete pump pipe according to claim 4, characterized in that, The inner cylinder (4) includes an inner cylinder (41), a handle (42) and an inclined surface (43). The outer wall of the inner cylinder (41) is provided with a handle (42). The inner wall of the outer cylinder (2) is vertically provided with a long strip-shaped sliding hole (8) for the handle (42) to pass through. The top of the inner cylinder (41) is provided with an inclined surface (43) that slopes inward.

6. The sealing mechanism for the concrete pump pipe according to claim 5, characterized in that, The cross-section of the outer contour of the inner cylinder (41) is rectangular, the inner cylinder (41) is adapted to the outer cylinder (2), the cross-section of the inner contour of the inner cylinder (41) is circular, and the inner cylinder (41) is adapted to the pump pipe (1).

7. The sealing mechanism for the concrete pump pipe according to claim 1, characterized in that, It also includes a limiting cylinder (61) and a sliding rod (62) arranged laterally on both sides of the outer cylinder (2). The sliding rod (62) slides along the inner wall of the limiting cylinder (61). The outer wall of the sealing part (5) is provided with a positioning groove (9) with an opening facing downward. The sliding rods (62) on both sides are fixedly connected by a connecting rod (63). A positioning block (64) is fixedly provided at one end of the sliding rod (62) away from the connecting rod (63). The positioning blocks (64) on both sides control the displacement of the sealing part (5) through the positioning groove (9).

8. The sealing mechanism for the concrete pump pipe according to claim 7, characterized in that, The linear power device includes a lead screw (71), a second handle (72), and a lead screw nut. The outer wall of the outer cylinder (2) is rotatably provided with the lead screw (71). The end of the lead screw (71) passes through the connecting rod (63) and is provided with the second handle (72). The inner wall of the connecting rod (63) is provided with the lead screw nut, which cooperates with the lead screw (71).

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