Concrete anti-throwing device of material distributing machine for house building construction

Abstract

The utility model discloses a spreader concrete anti-throwing device for house building construction, and relates to the technical field of concrete anti-throwing devices, the spreader concrete anti-throwing device for house building construction comprises a first pipe body and a gear, the bottom of the first pipe body is provided with a sliding groove matched with a curtain board, the curtain board is in sliding connection with the sliding groove, the top of the first pipe body is provided with a blanking pipe, and the blanking pipe is connected with the gear. A fixing block is fixedly welded to the outer side of the discharging pipe. According to the concrete anti-throwing device of the material distributing machine for house building construction, the top of a second pipe body is in butt joint with the bottom of a discharging pipe, when the inclined face of one side of a clamping rod makes contact with a fixing block, the clamping rod can rotate and extrude a spring on one side so that the spring can contract, when the clamping rod makes contact with a clamping groove in the fixing block, the spring can reset, and therefore the concrete can be thrown out. And the clamping rod is pushed to be clamped with the fixing block, connection of the discharging pipe and the second pipe body is completed, and therefore the anti-throwing device can be conveniently installed on the material distributing machine through the operation.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete anti-spillage devices, in particular to a concrete anti-spillage device for a placing machine used in building construction. Background Art

[0002] The concrete placing machine is the terminal equipment for pumping concrete. Its function is to deliver the pumped concrete through the pipe to the formwork of the component to be cast. The concrete placing machine is used to place the concrete instead of the tower crane, which greatly saves the construction cost and improves the casting efficiency. After the concrete placing machine stops pumping concrete, a small amount of concrete in the pump pipe will flow everywhere when it moves, causing concrete waste. A small amount of concrete in the pump pipe will flow out during the movement process, causing the contamination of steel bars, formwork and various water and electricity pipes, and causing inconvenience to the on-site construction workers. It is necessary to install an anti-spill device at the end of the pump pipe to seal the pump pipe.

[0003] After the concrete placing boom stops pumping concrete, in order to prevent a small amount of concrete in the pump pipe from flowing onto the steel bars and formwork and causing pollution to them, an anti-spill device needs to be installed at the end of the pump pipe. When the existing concrete anti-spill device of the placing boom is connected to the pump pipe, it needs to be tied to the outside of the anti-spill device with a metal strapping tape, and fastened to the end of the concrete placing boom pipe by winding or welding the strapping steel tape. This fixing method is not convenient for fixing the concrete anti-spill device to the placing boom. Utility Model Content

[0004] The utility model aims to provide a concrete anti-spill device for a concrete placing machine used in building construction, so as to solve the problem that the existing concrete anti-spill device for a concrete placing machine proposed in the above background technology is inconvenient to install.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a concrete spill prevention device for a concrete placing machine for building construction, comprising: a first tube body and a gear, a slide groove matching a shield plate is provided at the bottom of the first tube body, and the shield plate is slidably connected to the slide groove, and a feed pipe is provided at the top of the first tube body,

[0006] A fixed block is welded and fixed on the outer side of the feeding tube, a second tube body is welded and fixed on the top of the first tube body, a connecting block is welded and fixed on the outer side of the second tube body, one side of the connecting block is movably connected to a clamping rod through a rotating shaft, one side of the clamping rod is connected to a spring, a sliding groove matching the slider inside the moving sleeve is provided on the outer side of the second tube body, and the slider inside the moving sleeve is slidably connected to the sliding groove.

[0007] Preferably, a conical groove is provided inside the movable sleeve, a clamping groove matching the clamping rod is provided inside the fixed block, and the clamping rod is engaged and connected with the clamping groove.

[0008] Preferably, the outer side of the feed tube is connected through the top of the second tube body, and one end of the spring is fixedly connected to the second tube body.

[0009] Preferably, a motor is fixedly connected to the bottom of the first tube body via a mounting plate, a connecting shaft is fixedly connected to the output end of the motor, and a gear is fixedly connected to the outer side of the connecting shaft.

[0010] Preferably, a rack is meshingly connected to the outer side of the gear, the top of the rack is fixedly connected to the shield plate, and a material guide box is welded and fixed to the inner side of the first tube body.

[0011] Preferably, a scraper is welded and fixed on one side of the material guide box close to the baffle, a limiting block is welded and fixed on the bottom of the baffle, and one end of the connecting shaft is movably connected to the first tube body through a bearing.

[0012] Preferably, a movable groove matching the shielding plate is provided inside the material guiding box, and the shielding plate is slidably connected to the movable groove.

[0013] Compared with the prior art, the beneficial effect of the concrete anti-spill device of the concrete placing machine for building construction is: by docking the top of the second pipe body with the bottom of the discharge pipe, when the inclined surface on one side of the clamping rod contacts the fixed block, the clamping rod will rotate and squeeze the spring on one side to shrink it, and when the clamping rod contacts the clamping groove inside the fixed block, the spring will reset and push the clamping rod to engage with the fixed block to complete the connection between the discharge pipe and the second pipe body, and by installing a material guide box in the first pipe body, the trapezoidal groove in the material guide box will guide the concrete so that the concrete is misaligned with the chute when it is discharged, and at the same time, the top of the shield will contact the two sets of scrapers when moving, and the scrapers will scrape the concrete on the scrapers to prevent the concrete from entering the chute.

[0014] 1. After the concrete placing boom stops pumping concrete, in order to prevent a small amount of concrete in the pump pipe from flowing onto the steel bars and formwork and causing pollution to them, it is necessary to install an anti-spill device at the end of the pump pipe. When connecting the anti-spill device with the feed pipe of the placing boom, the top of the second pipe body is docked with the bottom of the feed pipe. When the inclined surface on one side of the clamping rod contacts the fixed block, the clamping rod will rotate and squeeze the spring on one side to shrink it. When the clamping rod contacts the slot inside the fixed block, the spring will reset and push the clamping rod to engage with the fixed block, completing the connection between the feed pipe and the second pipe body. The above operation can facilitate the installation of the anti-spill device on the placing boom.

[0015] 2. After the concrete placing boom stops pumping concrete, in order to prevent a small amount of concrete in the pump pipe from flowing onto the steel bars and formwork and causing pollution to them, it is necessary to install an anti-spill device at the end of the pump pipe. When the shutter of the first tube body is opened, in order to prevent the concrete from entering the chute for the movement of the shutter, a guide box is installed in the first tube body. The trapezoidal groove in the guide box will guide the concrete so that the concrete is misaligned with the chute when it is discharged. At the same time, the top of the shutter will contact the two sets of scrapers when it moves. The scrapers will scrape the concrete on the scrapers to prevent the concrete from entering the chute. The above operation can facilitate the opening of the concrete anti-spill device of the placing boom. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the main cross-section of the utility model;

[0018] Figure 3 It is a right side cross-sectional schematic diagram of the utility model;

[0019] Figure 4 This is a schematic diagram of the main cross-section of the material guide box of the utility model;

[0020] Figure 5 It is a right side view schematic diagram of the utility model;

[0021] Figure 6 It is a three-dimensional schematic diagram of the material guide box of the utility model.

[0022] In the figure: 1. first tube body; 2. shield plate; 3. feed tube; 4. fixed block; 5. connecting block; 6. clamping rod; 7. spring; 8. movable sleeve; 9. conical groove; 10. second tube body; 11. motor; 12. connecting shaft; 13. gear; 14. rack; 15. material guide box; 16. scraper; 17. limit block. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-Figure 5The utility model provides a technical solution: a concrete spill prevention device for a concrete placing machine for building construction, comprising: a first tube body 1 and a gear 13, a chute matching with a shield 2 is provided at the bottom of the first tube body 1, and the shield 2 is slidably connected with the chute, and a feed pipe 3 is provided at the top of the first tube body 1,

[0025] A fixing block 4 is welded and fixed to the outer side of the feeding tube 3, a second tube body 10 is welded and fixed to the top of the first tube body 1, a connecting block 5 is welded and fixed to the outer side of the second tube body 10, one side of the connecting block 5 is movably connected to a clamping rod 6 through a rotating shaft, one side of the clamping rod 6 is connected to a spring 7, a sliding groove matching the slider inside the moving sleeve 8 is provided on the outer side of the second tube body 10, and the slider inside the moving sleeve 8 is slidably connected to the sliding groove; a conical groove 9 is provided inside the moving sleeve 8, a clamping groove matching the clamping rod 6 is provided inside the fixing block 4, and the clamping rod 6 is clamped and connected to the clamping groove; the outer side of the feeding tube 3 is connected through the top of the second tube body 10, one end of the spring 7 is fixedly connected to the second tube body 10, the connecting block 5 forms a rotating structure with the clamping rod 6 through the rotating shaft, and the fixing block 4 and the clamping rod 6 form a clamping structure.

[0026] In specific implementation, after the concrete placing machine stops pumping concrete, in order to prevent a small amount of concrete in the pump pipe from flowing onto the steel bars and formwork and causing pollution to them, it is necessary to install an anti-spill device at the end of the pump pipe. When the anti-spill device is connected to the feed pipe 3 of the placing machine, by docking the top of the second tube body 10 with the bottom of the feed pipe 3, when the inclined surface of one side of the clamping rod 6 contacts the fixed block 4, the clamping rod 6 will rotate and squeeze the spring 7 on one side to make it contract. When the clamping rod 6 contacts the clamping groove inside the fixed block 4, the spring 7 will reset and push the clamping rod 6 to engage with the fixed block 4, thereby completing the connection between the feed pipe 3 and the second tube body 10.

[0027] When it is necessary to separate the anti-spillage device from the feed pipe 3 of the material placing machine, the movable sleeve 8 is pushed upward. When the movable sleeve 8 moves, the internal conical groove 9 will synchronously squeeze the four groups of clamping rods 6 to rotate the clamping rods 6. When the clamping rods 6 rotate and disengage from the fixed block 4, the movable second tube body 10 is separated from the feed pipe 3. The above operation can facilitate the installation of the anti-spillage device on the material placing machine.

[0028] See also Figure 1-Figure 6The bottom of the first tube body 1 is fixedly connected with a motor 11 through a mounting plate, the output end of the motor 11 is fixedly connected with a connecting shaft 12, and the outer side of the connecting shaft 12 is fixedly connected with a gear 13; the outer side of the gear 13 is meshingly connected with a rack 14, the top of the rack 14 is fixedly connected with the baffle 2, and a material guide box 15 is welded and fixed on the inner side of the first tube body 1; a scraper 16 is welded and fixed on the side of the material guide box 15 close to the baffle 2, a limiting block 17 is welded and fixed on the bottom of the baffle 2, and one end of the connecting shaft 12 is movably connected with the first tube body 1 through a bearing; a moving groove matching the baffle 2 is opened inside the material guide box 15, and the baffle 2 is slidably connected with the moving groove, the rack 14 and the gear 13 constitute a meshing transmission structure, and the baffle 2 and the material guide box 15 constitute a sliding structure.

[0029] In specific implementation, after the concrete placing machine stops pumping concrete, in order to prevent a small amount of concrete in the pump pipe from flowing onto the steel bars and formwork and causing pollution to them, it is necessary to install an anti-spill device at the end of the pump pipe. When the shutter 2 of the first tube body 1 is opened, the connecting shaft 12 is driven to rotate by starting the motor 11. When the connecting shaft 12 rotates, it drives the gear 13 to rotate. The gear 13 will mesh with the rack 14, so that the rack 14 drives the shutter 2 to move out, and the limit block 17 will limit the shutter 2. , to prevent the shield 2 from moving out. In order to prevent the concrete from entering the chute for the shield 2 to move when it is discharged, a guide box 15 is installed in the first tube body 1. The trapezoidal groove in the guide box 15 will guide the concrete, so that the concrete is misaligned with the chute when it is discharged. At the same time, the top of the shield 2 will contact the two sets of scrapers 16 when it moves, and the scrapers 16 will scrape the concrete on the scrapers 16 to prevent the concrete from entering the chute. In this way, the above operation can facilitate the opening of the concrete anti-spill device of the placing crane.

[0030] To sum up: when using the concrete anti-spillage device of the concrete placing boom for building construction, first connect the second pipe body 10 to the discharge pipe 3. When the concrete placing boom stops pumping concrete, the shield 2 is driven to move by starting the motor 11 to block the bottom of the first pipe body 1. At this time, concrete can be prevented from being spilled when the concrete placing boom is moved. This is the feature of the concrete anti-spillage device of the concrete placing boom for building construction. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A concrete spill prevention device for a placing machine for building construction, comprising: A first tube body (1) and a gear (13), a slide groove matching the baffle (2) is provided at the bottom of the first tube body (1), and the baffle (2) is slidably connected to the slide groove, and a feed pipe (3) is provided at the top of the first tube body (1), characterized in that: A fixing block (4) is welded and fixed on the outer side of the feed tube (3); a second tube body (10) is welded and fixed on the top of the first tube body (1); a connecting block (5) is welded and fixed on the outer side of the second tube body (10); one side of the connecting block (5) is movably connected to a clamping rod (6) via a rotating shaft; one side of the clamping rod (6) is connected to a spring (7); a sliding groove matching the slider inside the moving sleeve (8) is provided on the outer side of the second tube body (10); and the slider inside the moving sleeve (8) is slidably connected to the sliding groove.

2. The concrete spill prevention device for a placing machine for building construction according to claim 1, characterized in that: The movable sleeve (8) is provided with a conical groove (9) inside, the fixed block (4) is provided with a slot matching the clamping rod (6) inside, and the clamping rod (6) is clamped and connected with the slot.

3. The concrete spill prevention device for a placing machine for building construction according to claim 2, characterized in that: The outer side of the feed tube (3) is connected to the top of the second tube body (10) through the outer side, and one end of the spring (7) is fixedly connected to the second tube body (10).

4. The concrete spill prevention device for a placing machine for building construction according to claim 1, characterized in that: The bottom of the first tube (1) is fixedly connected to a motor (11) via a mounting plate, the output end of the motor (11) is fixedly connected to a connecting shaft (12), and the outer side of the connecting shaft (12) is fixedly connected to a gear (13).

5. The concrete spill prevention device for a placing machine for building construction according to claim 4, characterized in that: The outer side of the gear (13) is meshingly connected with a rack (14), the top of the rack (14) is fixedly connected to the shielding plate (2), and the inner side of the first tube body (1) is welded and fixed with a material guide box (15).

6. The concrete spill prevention device for a placing machine for building construction according to claim 5, characterized in that: A scraper (16) is welded and fixed on one side of the material guide box (15) close to the baffle (2), a limit block (17) is welded and fixed on the bottom of the baffle (2), and one end of the connecting shaft (12) is movably connected to the first tube body (1) via a bearing.

7. The concrete spill prevention device for a placing machine for building construction according to claim 6, characterized in that: The material guide box (15) is provided with a movable groove matching the shielding plate (2) inside, and the shielding plate (2) is slidably connected to the movable groove.

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