Anti-segregation device for concrete pouring and blanking

By designing a concrete casting and cutting anti-separation device including string cylinders, buffer plates and centering devices, the problems of unevenness and separation during the concrete cutting process are solved, and a more stable and accurate concrete cutting process is achieved.

CN222834762UActive Publication Date: 2025-05-06ZIBO LINXIANG CONSTR ENG CO LTD
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Patent Information

Application Number
CN202520539051.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-26
Publication Date
2025-05-06
Estimated Expiration
2035-03-26

AI Technical Summary

Technical Problem

In bridge construction, unevenness and separation are prone to occur during concrete cutting, mainly due to the instability of the cartridge and the unsolid connection structure.

Method used

A concrete casting and cutting anti-separation device is designed, including a plurality of string barrels connected in series along the vertical direction. Each string barrel is equipped with an inclined buffer plate. A firm connection between the string barrels is achieved through a combination structure connecting the string barrels, and a centering device is provided on the outside of the string barrel to maintain the center position of the string barrel.

Benefits of technology

It effectively reduces the unevenness and segregation phenomenon during concrete cutting process, improves the stability and accuracy of concrete cutting, and ensures uniform pouring of concrete in the formwork.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a concrete pouring blanking anti-segregation device, which belongs to the technical field of bridge construction, and comprises tumbling barrels, a blanking funnel and a buffer material plate, a plurality of connecting lifting claw plates are arranged on the blanking funnel and the outer side of the bottom of each tumbling barrel in a circular array mode, a lifting ring is fixed in an inner hole at the upper end of each tumbling barrel, a first lifting ring is fixed at the top of each tumbling barrel, and a second lifting ring is fixed at the bottom of each tumbling barrel. The first hanging ring is connected with a hook, a chain is fixed to the hook, at least one centering device is arranged on the outer side walls of the multiple tumbling barrels, each centering device comprises at least two horizontal telescopic rods arranged on the outer walls of the tumbling barrels in a circular array mode, and arc-shaped limiting plates are fixed to the outer ends of the telescopic rods. Adjacent tumbling barrels are connected through the hanging rings and the connecting hanging claw plates, the tumbling barrels and the discharging hopper are connected through the hanging rings and the connecting hanging claw plates, hanging and pulling are assisted through the hooks and the lock chains, connection is firmer, mutual collision is avoided, in addition, the tumbling barrels are arranged in the middle, the tumbling barrels can be kept in the middle, and the concrete segregation phenomenon is not prone to occurring.
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Description

Technical Field

[0001] The utility model relates to a concrete pouring material separation prevention device, belonging to the technical field of bridge construction. Background Art

[0002] The concrete piers of highway bridges are important supporting load-bearing structures of bridges. Most of the pier construction is carried out by casting on-site using vertical formwork. In the pier concrete construction, in order to reduce the unevenness and segregation problems in the concrete feeding process, the concrete is generally dropped to the casting surface through a string tube. During construction, the string tube is suspended, and the bottom of the string tube is not centered or swings due to the impact of the concrete feeding, which easily causes the concrete feeding to not be in the middle of the formwork and concrete segregation. In addition, the connection structure between the string tubes is suspended, which is easy to shake and the connection is not firm. Utility Model Content

[0003] The utility model provides a device for preventing concrete pouring and discharging from segregation, which solves the problems existing in the above-mentioned background technology.

[0004] The utility model relates to a device for preventing material from being segregated during concrete pouring, comprising a plurality of string tubes connected in series along a vertical direction, the topmost string tube being connected with a material discharge funnel, an inclined buffer material plate being fixed in each string tube, a plurality of connecting claw plates being arranged in a circular array on the outer side of the bottom of the material discharge funnel and each string tube, a hanging ring being fixed in an inner hole at the upper end of each string tube, a supporting recess being arranged on the outer side of the bottom of the inner hole of the hanging ring and cooperating with the connecting claw plate, a plurality of opening grooves for the connecting claw plates to pass through being arranged on the top of the hanging ring, a hanging ring 1 being fixed on the top of each string tube, a hanging ring 1 being connected with a hook, a chain being fixed on the hook, a hanging ring 2 being connected with the other end of the chain being fixed on the outer side wall of the lower part of the material discharge funnel and the string tube, at least one centering device being arranged on the outer side wall of the plurality of string tubes, the centering device comprising at least two horizontal telescopic rods being arranged in a circular array on the outer wall of the string tube, an arc-shaped limiting plate being fixed on the outer end of the telescopic rod.

[0005] As a preferred embodiment, the centering device also includes a fixing ring fixed on the outer wall of the string tube, the fixing ring is composed of two semicircular rings, both ends of the two semicircular rings are provided with connecting flanges, the connecting flanges are provided with fixing bolts, and the inner end of the telescopic rod is fixed on the fixing ring, which can facilitate the installation and disassembly of the centering device.

[0006] As a preferred embodiment, anti-slip positioning columns are fixed on the inner walls of the two semicircular rings, and anti-slip positioning holes that cooperate with the anti-slip positioning columns are provided on the outer wall of the string tube. The anti-slip positioning columns and the anti-slip positioning holes cooperate to quickly locate the position of the centering device and better prevent the centering device from sliding downward after installation.

[0007] As a preferred embodiment, an anti-collision rubber layer is provided on the outer wall of the limiting plate, and fixed recesses are provided on the upper and lower outer walls of the anti-collision rubber layer, and a clamping plate is provided at the fixed recess, and a clamping screw is fixed to the inner end of the clamping plate, and the other end of the clamping screw passes through the anti-collision rubber layer and the limiting plate and is connected with a clamping nut. The provision of the anti-collision rubber layer can greatly reduce the noise generated by the collision and protect the limiting plate. In addition, the anti-collision rubber layer can be easily disassembled and replaced.

[0008] As a preferred embodiment, a buffer guide rod is provided in the inner hole of the outer end of the telescopic rod, and a guide slider is fixed to the inner end of the buffer guide rod and slides axially in the inner hole of the outer end of the telescopic rod, and a plug plate is fixed in the inner hole of the outer end of the telescopic rod, and the outer end of the buffer guide rod passes through the plug plate and is fixedly connected to a limit plate, and a buffer spring is provided at the inner end of the guide slider, and when the limit plate is collided, the limit plate can slide along the axial direction of the telescopic rod, and combined with the buffer spring, the damage to the connection of the inner end of the telescopic rod caused by the collision can be reduced.

[0009] As a preferred embodiment, a guide rod is sleeved in the inner hole of the buffer spring, the outer end of the guide rod is fixed to the guide slider, the inner end of the guide rod is sleeved with a guide sleeve, the guide sleeve is fixed in the inner hole of the outer end of the telescopic rod, and the inner end of the buffer spring contacts the guide sleeve, which facilitates the installation and support of the buffer spring and better guides.

[0010] The utility model has the following beneficial effects:

[0011] Adjacent string tubes and the string tube and the discharge funnel are connected by hanging rings and connecting claw plates, and then assisted by hooks and chains for lifting, which makes the connection more firm and avoids collision between each other. In addition, a centering device is arranged on the string tube to keep the string tube in the middle, making concrete segregation less likely to occur. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0013] Figure 2 for Figure 1 Schematic diagram of some structures;

[0014] Figure 3 for Figure 2 Schematic diagram of some structures;

[0015] Figure 4 for Figure 3 Schematic diagram of some structures;

[0016] Figure 5 It is a schematic diagram of the top structure of the hanging ring;

[0017] Figure 6 It is a schematic diagram of the top structure of the fixing ring;

[0018] In the figure: 1. feeding funnel; 2. chain; 3. limit plate; 4. string tube; 5. buffer material plate; 6. support plate; 7. hanging ring; 8. connecting claw plate; 9. telescopic rod; 10. fixing ring; 11. hook; 12. opening groove; 13. anti-skid positioning column; 14. buffer guide rod; 15. guide rod; 16. guide slide block; 17. anti-collision rubber layer; 18. guide sleeve; 19. buffer spring; 20. plug plate; 21. clamping plate; 22. clamping screw. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with embodiments.

[0020] Embodiment 1, as Figures 1 to 6 As shown, the utility model is a concrete pouring material discharging and anti-segregation device, comprising a plurality of string tubes 4 connected in series in a vertical direction, the topmost string tube 4 is connected to a discharging funnel 1, and hanging pull rings are fixed on both sides of the top of the discharging funnel 1, and an inclined buffer material plate 5 is fixed in each string tube 4, and the bottom outer sides of the discharging funnel 1 and each string tube 4 are both circularly arrayed with a plurality of connecting hanging claw plates 8, a hanging ring 7 is fixed in the inner hole at the upper end of each string tube 4, and a supporting concave platform cooperating with the connecting hanging claw plate 8 is provided on the outer side of the bottom of the inner hole of the hanging ring 7, and a plurality of opening grooves 12 for the connecting hanging claw plates 8 to pass through are provided on the top of the hanging ring 7, and each string tube 4 is provided with a plurality of opening grooves 12 on the top of the hanging ring 7. A lifting ring 1 is fixed, the lifting ring 1 is connected to a hook 11, the hook 11 is fixed to a chain 2, a lifting ring 2 connected to the other end of the chain 2 is fixed on the lower outer wall of the discharge funnel 1 and the string tube 4, and at least one centering device is provided on the outer walls of multiple string tubes 4. Two centering devices are used here, and the two centering devices are respectively arranged on the topmost string tube 4 and the bottommost string tube 4. The centering device includes at least two horizontal telescopic rods 9 arranged in a circular array on the outer wall of the string tube 4. The best choice is three telescopic rods 9. A locking bolt is provided in the middle of the telescopic rod 9, and an arc-shaped limit plate 3 is fixed to the outer end of the telescopic rod 9.

[0021] During operation, the feeding funnel 1 is connected to the string tube 4, and the adjacent string tubes 4 are connected. When connecting, the upper connecting claw plate 8 is passed through the open groove 12 and enters the supporting recess, and then the lower string tube 4 is rotated to make the connecting claw plate 8 away from the open groove 12, and then the lower string tube 4 is pushed upward to leave enough space for the hook 11 to be hung in the lifting ring 1, and then the hook 11 at the corresponding position is hung on the lifting ring 1. When the chain 2 is tightened, the connecting claw plate 8 is tightened on the supporting recess. Then install the centering device, then hang the top of the feeding funnel 1 and put the string tube 4 into the inner hole of the steel cage of the pier, stop when the bottom string tube 4 is about 1.5 meters away from the bottom of the steel cage, and then pour concrete. The concrete enters from the feeding funnel 1 and then falls along multiple string tubes 4. Since the buffer material plate 5 is arranged inside the string tube 4, the vertical falling distance of the concrete can be effectively reduced, and the impact force of the vertical falling concrete can be effectively buffered. When the string tube 4 is impacted and shaken, the centering device can keep the string tube 4 in the middle position. When a section is poured and the concrete is about to reach the bottom of the lowest string tube 4, lift the feeding funnel 1 to drive the string tube 4 to move upward, and then remove the string tube 4 in the middle of the next section, and continue pouring until all the pouring is completed.

[0022] Embodiment 2, on the basis of embodiment 1, the centering device also includes a fixing ring 10 fixed on the outer wall of the string tube 4, the fixing ring 10 is composed of two semicircular rings, both ends of the two semicircular rings are provided with connecting flanges, the connecting flanges are provided with fixing bolts, and the inner end of the telescopic rod 9 is fixed on the fixing ring 10. The inner holes of the two semicircular rings are conical in shape to match the outer wall of the string tube 4. Each section of the string tube 4 is about 1.5 meters long. When adjusting the length of the telescopic rod 9, each limit plate 3 is about 5 cm away from the inner side of the steel cage. It can effectively control the swing from being centered, and prevent contact or scratching the steel cage to affect the lifting.

[0023] The inner wall of the two semicircular rings is fixed with an anti-skid positioning column 13, and the outer wall of the string tube 4 is provided with an anti-skid positioning hole that matches the anti-skid positioning column 13. The inner end of the buffer material plate 5 is provided with a positioning platform, and the inner wall of the string tube 4 is provided with a positioning groove 1 that matches the positioning platform. The outer wall of the lower end of the buffer material plate 5 is provided with a supporting groove, and a support plate 6 is provided in the supporting groove. The inner end of the support plate 6 is welded and fixed to the string tube 4, and the inner wall of the string tube 4 is provided with a positioning groove 2 for positioning the outer end of the support plate 6. When installing the centering device, the two semicircular rings are wrapped around the outer side of the string tube 4, and the anti-skid positioning column 13 is inserted into the anti-skid positioning hole, and then the fixing bolts are tightened to complete the installation.

[0024] An anti-collision rubber layer 17 is provided on the outer wall of the limit plate 3, and a fixed concave platform is provided on the upper and lower outer walls of the anti-collision rubber layer 17, and a clamping plate 21 is provided at the fixed concave platform, and a clamping screw 22 is fixed to the inner end of the clamping plate 21, and the other end of the clamping screw 22 passes through the anti-collision rubber layer 17 and the limit plate 3 to be connected with a clamping nut. When the anti-collision rubber layer 17 is seriously worn and needs to be replaced after a long period of use, the clamping nut is screwed off, and then the clamping plate 21 is removed, and then a new anti-collision rubber layer 17 is replaced, and then the clamping plate 21 is re-placed on the fixed concave platform, and the clamping screw 22 is inserted into the mounting hole to connect the clamping nut, and then the clamping nut is tightened.

[0025] A buffer guide rod 14 is provided in the inner hole of the outer end of the telescopic rod 9, and a guide slider 16 is fixed at the inner end of the buffer guide rod 14, which slides axially in the inner hole of the outer end of the telescopic rod 9. A plug plate 20 is fixed in the inner hole of the outer end of the telescopic rod 9, and the outer end of the buffer guide rod 14 passes through the plug plate 20 and is fixedly connected to the limit plate 3, and a buffer spring 19 is provided at the inner end of the guide slider 16.

[0026] The inner hole of the buffer spring 19 is sleeved with a guide rod 15, the outer end of the guide rod 15 is fixed with a guide slider 16, the inner end of the guide rod 15 is sleeved with a guide sleeve 18, the guide sleeve 18 is fixed in the inner hole of the outer end of the telescopic rod 9, and the inner end of the buffer spring 19 contacts the guide sleeve 18. During installation, the guide sleeve 18 is first welded and fixed in the inner hole of the outer end of the telescopic rod 9, and then the buffer spring 19 is sleeved on the guide rod 15, the guide slider 16 is inserted into the inner hole of the outer end of the telescopic rod 9, and then the plug plate 20 is sleeved on the buffer guide rod 14, the plug plate 20 is welded and fixed to the end of the inner hole of the outer end of the telescopic rod 9, and then the limit plate 3 is welded and fixed to the outer end of the buffer guide rod 14. When in use, the limit plate 3 is hit, and the buffer guide rod 14 will compress the buffer spring 19 to shrink toward the inner end of the telescopic rod 9 for buffering.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0028] In the description of the present invention, the terms "inside", "outside", "longitudinal", "lateral", "upper", "lower", "top", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

Claims

1. A device for preventing material segregation during concrete pouring, comprising a plurality of string tubes (4) connected in series in a vertical direction, wherein the topmost string tube (4) is connected to a material discharge hopper (1), and an inclined buffer plate (5) is fixed in each string tube (4), characterized in that: The bottom outer sides of the feeding hopper (1) and each string tube (4) are provided with a plurality of connecting claw plates (8) in a circular array, a hanging ring (7) is fixed in the inner hole at the upper end of each string tube (4), a supporting concave platform cooperating with the connecting claw plate (8) is provided on the outer side of the bottom inner hole of the hanging ring (7), a plurality of opening grooves (12) for the connecting claw plates (8) to pass through are provided on the top of the hanging ring (7), a hanging ring 1 is fixed on the top of each string tube (4), the hanging ring 1 is connected to a hook (11), a chain (2) is fixed to the hook (11), a hanging ring 2 connected to the other end of the chain (2) is fixed on the lower outer side wall of the feeding hopper (1) and the string tube (4), and at least one centering device is provided on the outer side wall of the plurality of string tubes (4), the centering device comprises at least two horizontal telescopic rods (9) arranged in a circular array on the outer wall of the string tube (4), and an arc-shaped limiting plate (3) is fixed to the outer end of the telescopic rod (9).

2. The device for preventing concrete pouring and discharging from segregation according to claim 1, characterized in that: The centering device also includes a fixing ring (10) fixed on the outer wall of the string tube (4), the fixing ring (10) is composed of two semicircular rings, both ends of the two semicircular rings are provided with connecting flanges, and the connecting flanges are provided with fixing bolts, and the inner end of the telescopic rod (9) is fixed on the fixing ring (10).

3. A device for preventing concrete pouring and discharging from segregation according to claim 2, characterized in that: Anti-skid positioning columns (13) are fixed on the inner side walls of the two semicircular rings, and anti-skid positioning holes cooperating with the anti-skid positioning columns (13) are provided on the outer side wall of the string tube (4).

4. The device for preventing concrete pouring and discharging from segregation according to claim 1, characterized in that: An anti-collision rubber layer (17) is provided on the outer side wall of the limit plate (3), and fixing recesses are provided on the upper and lower outer side walls of the anti-collision rubber layer (17), and a clamping plate (21) is provided at the fixing recess, and a clamping screw (22) is fixed to the inner end of the clamping plate (21), and the other end of the clamping screw (22) passes through the anti-collision rubber layer (17) and the limit plate (3) and is connected to a clamping nut.

5. The device for preventing concrete pouring and discharging from segregation according to claim 1, characterized in that: A buffer guide rod (14) is provided in the inner hole at the outer end of the telescopic rod (9); a guide slider (16) is fixed at the inner end of the buffer guide rod (14) and slides axially in the inner hole at the outer end of the telescopic rod (9); a plug plate (20) is fixed in the inner hole at the outer end of the telescopic rod (9); the outer end of the buffer guide rod (14) passes through the plug plate (20) and is fixedly connected to the limit plate (3); and a buffer spring (19) is provided at the inner end of the guide slider (16).

6. The device for preventing concrete pouring and discharging from segregation according to claim 5, characterized in that: A guide rod (15) is sleeved in the inner hole of the buffer spring (19), the outer end of the guide rod (15) is fixed to the guide slider (16), the inner end of the guide rod (15) is sleeved with a guide sleeve (18), the guide sleeve (18) is fixed in the inner hole of the outer end of the telescopic rod (9), and the inner end of the buffer spring (19) is in contact with the guide sleeve (18).