A pre-embedded part fixing device for concrete pouring

Abstract

This utility model relates to the field of building construction technology and discloses a fixing device for embedded parts in concrete pouring. It includes a top plate, with multiple legs fixedly connected to the bottom end of each top plate. Multiple fixing rings are rotatably connected to the outer sides of each of the legs, and multiple fixing mechanisms are installed on the outer sides of each fixing ring. Two reinforcing bars are installed inside each fixing mechanism. Each fixing mechanism includes a fixing block, with its outer side fixedly connected to the outer side of the fixing rings. A rotating rod is rotatably connected inside the fixing block, and a bevel gear is fixedly connected to the outer side of the rotating rod. In this utility model, the rotating rod drives the bevel gear set to rotate the semi-threaded rod, which in turn moves the moving rod and sliding rod. Through the connecting rod and slider, the clamping rods move towards each other to clamp the reinforcing bars. This device can evenly transmit external force to the reinforcing bar network, improving pull-out resistance, and is easy to install, thus accelerating construction.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a pre-embedded part fixing device for concrete pouring. Background Technology

[0002] Embedded parts for concrete pouring are metal components that are pre-embedded into concrete components. They are mostly made of carbon steel, stainless steel, etc., and common forms include steel plates, anchor bars, bolts, and lifting rings. Their core function is to provide connection points for subsequent equipment installation and component fixing, so that external components can be firmly connected to the concrete body. During construction, they must be precisely fixed according to the design position to ensure that they do not shift after pouring. They are widely used in building, bridge, rail transit and other projects, and are key basic components to ensure the stability of structural connections.

[0003] The concrete pouring embedded part fixing device is an auxiliary tool for positioning and fixing embedded parts in building pouring construction. Its core value lies in ensuring that the embedded parts do not shift or tilt during the pouring process, thus ensuring installation accuracy. This device is compatible with various specifications of embedded parts and different pouring scenarios. It can resist the impact of concrete flow and vibration force, and maintain the stability of the embedded parts.

[0004] In existing technologies, some pre-embedded parts for concrete pouring are fixed with steel wires or placed on two support rods during use. However, the steel wires themselves are not rigid enough to withstand the lateral pressure generated by the flow of concrete and the impact force brought by vibration. This can directly cause the pre-embedded parts to shift, tilt, and deviate from the preset installation position. When supported by only two support rods, the stress point of the pre-embedded parts is too singular, and the overall stability is poor. During the pouring process, it is easy for the pre-embedded parts to sink or overturn due to the impact of concrete or the weight of the pre-embedded parts themselves. Therefore, a fixing device for pre-embedded parts for concrete pouring is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a fixing device for embedded parts in concrete pouring, which aims to improve the poor stability of some of the fixing methods used in the prior art for embedded parts, which easily leads to problems such as displacement, tilting, and sinking of the embedded parts during pouring, causing them to deviate from the preset installation position and damage the installation posture.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A pre-embedded component fixing device for concrete pouring includes a top plate, with multiple legs fixedly connected to the bottom end of the top plate, multiple fixing rings rotatably connected to the outer side of the multiple legs, multiple fixing mechanisms installed on the outer side of the multiple fixing rings, and two steel bars installed inside the multiple fixing mechanisms. The fixing mechanism includes a fixing block, the outer side of which is fixedly connected to the outer side of the fixing ring. A rotating rod is rotatably connected inside the fixing block. A first bevel gear is fixedly connected to the outer side of the rotating rod. A semi-threaded rod is rotatably connected inside the fixing block. A second bevel gear is fixedly connected to the outer side of the semi-threaded rod. The outer side of the second bevel gear is meshed with the outer side of the first bevel gear. A moving rod is threadedly connected to the outer side of the semi-threaded rod. Two sliding rods are slidably connected inside each of the moving rods. A clamping mechanism is installed on the outer side of the two sliding rods. As a further description of the above technical solution: The clamping mechanism includes two connecting rods, the inside of which is fixedly connected to the outside of the sliding rod. The other end of each of the two connecting rods is fixedly connected to a slider. The inside of each of the two sliders is slidably connected to a slide rail. The other side of the slide rail is fixedly connected to a support rod. The other side of each of the two sliders is fixedly connected to two clamping rods. The outside of the rotating rod is fixedly connected to a ratchet. The inside of the fixing block is rotatably connected to a pawl. The inside of the fixing block is fixedly connected to a spring piece. As a further description of the above technical solution: Each of the movable rods has two sliding grooves inside, and the outer side of the sliding rod is slidably connected to the inside of the sliding grooves; As a further description of the above technical solution: The outer side of the movable rod is slidably connected to the inside of the fixed block, and the outer side of the support rod is fixedly connected to the inside of the fixed block; As a further description of the above technical solution: The two clamps are mounted on their adjacent sides on the outside of the reinforcing bar, and the outside of the pawl contacts the outside of the ratchet. As a further description of the above technical solution: The outer side of the ratchet contacts the outer side of the spring, and the outer side of the clamping rod is slidably connected to the inside of the fixing block.

[0007] This utility model has the following beneficial effects: In this invention, a rotating rod drives a bevel gear one to rotate, which in turn drives a bevel gear two and a semi-threaded rod to rotate. The semi-threaded rod is threadedly engaged with a moving rod. Under the constraint of a fixed block, the moving rod moves axially along the semi-threaded rod, pushing a sliding rod to move within a sliding groove. The sliding rod, through a connecting rod, drives a slider to move along a slide rail, causing the clamping rods to move towards each other and clamp the reinforcing bars. This device evenly transmits external force to the main reinforcing bar network through a fixing device, improving tensile and shear bearing capacity, reducing the risk of loosening of embedded parts, and is easy to install, which helps to shorten the process time and speed up the construction progress. Attached Figure Description

[0008] Figure 1 This is a three-dimensional schematic diagram of a pre-embedded part fixing device for concrete pouring proposed in this utility model; Figure 2 This is a schematic diagram of the fixing ring of a pre-embedded part fixing device for concrete pouring proposed in this utility model; Figure 3 This is a schematic diagram of the structure of the fixing block of the pre-embedded part fixing device for concrete pouring proposed in this utility model; Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0009] Legend: 1. Top plate; 2. Support leg; 3. Fixing ring; 4. Fixing mechanism; 41. Fixing block; 42. Rotating rod; 43. Bevel gear one; 44. Semi-threaded rod; 45. Bevel gear two; 46. Sliding groove; 47. Moving rod; 48. Sliding rod; 49. Clamping mechanism; 491. Connecting rod; 492. Slider; 493. Support rod; 494. Slide rail; 495. Clamping rod; 496. Ratchet; 497. Pad; 498. Spring; 5. Reinforcing bar. Detailed Implementation

[0010] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0011] Example: A fixing device for embedded parts in concrete pouring, referring to... Figure 1 , Figure 3 and Figure 4 The system includes a top plate 1, with multiple support legs 2 fixedly connected to the bottom of the top plate 1. The top plate 1 serves as a connector, linking the support legs 2 together. The support legs 2 provide connection points for the entire device to the required fixing position. Multiple fixing rings 3 are rotatably connected to the outer sides of the support legs 2, and multiple fixing mechanisms 4 are installed on the outer sides of the fixing rings 3. The fixing rings 3 can rotate around the support legs 2 at a certain angle and are mainly used to install the fixing mechanisms 4. Through their rotational characteristics, the orientation and position of the fixing mechanisms 4 can be adjusted to adapt to the installation requirements of steel bars 5 at different angles and positions. The fixing mechanisms 4, through the coordinated action of their internal components, can fix the device to the connecting parts. Two steel bars 5 are installed inside the multiple fixing mechanisms 4. The steel bars 5 form a stable connection with the entire fixing device, ensuring that the embedded parts can be firmly bonded to the steel bars 5. After the concrete solidifies, they together form a building structure with sufficient strength and stability. The fixing mechanism 4 includes a fixing block 41, which is fixedly connected to the outside of the fixing ring 3. Its interior provides space for the installation and movement of the components inside the fixing mechanism 4, serving both load-bearing and limiting functions. A rotating rod 42 is rotatably connected inside the fixing block 41. Driven by external force, it can transmit power to connected components, thereby driving the transmission structure inside the entire fixing mechanism 4. A bevel gear 43 is fixedly connected to the outside of the rotating rod 42. A semi-threaded rod 44 is rotatably connected inside the fixing block 41. A bevel gear 45 is fixedly connected to the outside of the semi-threaded rod 44. The outer side of the bevel gear 45 meshes with the outer side of the bevel gear 43. A moving rod 47 is threadedly connected to the outer side of the semi-threaded rod 44. The bevel gear 43 converts the rotational motion of the rotating rod 42 into power perpendicular to the axis of the rotating rod 42 and transmits it to the meshing bevel gear 45, thus changing the direction of power transmission. The semi-threaded rod 44 rotates under the drive of the second bevel gear 45, and its outer threaded structure converts the rotational motion into the linear reciprocating motion of the moving rod 47. The second bevel gear 45 receives the power transmitted by the first bevel gear 43, driving the semi-threaded rod 44 to rotate synchronously, completing the power transmission from the rotating rod 42 to the semi-threaded rod 44. Driven by the rotation of the semi-threaded rod 44, the moving rod 47 can move linearly along the internal track of the fixed block 41, and drives the connected components to move through its own movement. Two sliding rods 48 are slidably connected inside the moving rod 47, and clamping mechanisms 49 are installed on the outer side of the two sliding rods 48. The sliding rods 48 transmit the linear motion of the moving rod 47 to the clamping mechanisms 49, and the clamping mechanisms 49 receive the motion from the sliding rods 48. Through the coordinated action of the internal components, the embedded parts are fixed. The clamping mechanism 49 includes two connecting rods 491, which are internally and fixedly connected to the outside of the sliding rod 48. Each connecting rod 491 has a slider 492 fixedly connected to its other end. The connecting rods 491 connect the sliding rod 48 and the slider 492, smoothly transmitting the power from the sliding rod 48 to the slider 492, allowing the slider 492 to move in sync with the sliding rod 48. A slide rail 494 is internally slidably connected to each slider 492, providing a sliding track for the slider 492. Its extension direction determines the movement direction of the slider 492 and the clamping rod 495. A support rod 493 is fixedly connected to the other side of the slide rail 494, supporting and fixing the slide rail 494 to ensure it maintains a stable position and state during device operation, providing a reliable track foundation for the sliding of the slider 492. Two clamping rods 495 are fixedly connected to the other side of each of the two sliders 492. The clamping rods 495 are the components that directly clamp and fix the rebar 5. By the relative proximity of the two clamping rods 495, the friction between their inner sides and the outer side of the rebar 5 is used to tightly clamp the rebar 5. A ratchet 496 is fixedly connected to the outer side of the rotating rod 42, and a pawl 497 is rotatably connected inside the fixing block 41. The ratchet 496, through its cooperation with the pawl 497, achieves one-way locking of the rotating rod 42, preventing the rotating rod 42 from reversing due to external force, thereby ensuring that the clamping force of the clamping mechanism 49 on the rebar 5 remains stable. A spring piece 498 is fixedly connected inside the fixing block 41. The spring piece 498 provides continuous elastic force to the pawl 497, so that the pawl 497 always closely fits the tooth surface of the ratchet 496, ensuring that the locking cooperation between the pawl 497 and the ratchet 496 can be reliably achieved. Specifically, when fixing the embedded parts, rotate the fixing ring 3, adjust the angle of the fixing mechanism 4, and rotate the rotating rod 42 so that the rotating rod 42 receives external force and rotates. The movement of the rotating rod 42 drives the first bevel gear 43 to move. The first bevel gear 43 transmits its own movement to the meshing second bevel gear 45, so that the second bevel gear 45 drives the semi-threaded rod 44 to rotate. Under the action of the thread on the semi-threaded rod 44 and the restriction of the fixing block 41, the moving rod 47 can move linearly on the outside of the semi-threaded rod 44. The movement of the moving rod 47 drives the sliding rod 48 to move through the sliding groove 46. When the moving rod 48 moves to the side of the sliding groove 46 that is close to it, the sliding rod 48 drives the connecting rod 491 to move to the side that is far away, thereby causing the slider 492 to slide on the slide rail 494, causing the clamping rod 495 to clamp and fix the steel bar 5. When the sliding rod 48 moves to the side of the sliding groove 46 that is far away, the sliding rod 48 drives the above-mentioned components to move in the opposite direction, thereby realizing the clamping and disassembly of the steel bar 5. When the rotating rod 42 rotates, the ratchet 496 moves with the rotation of the rotating rod 42. When the movement stops, the spring piece 498 and the pawl 497 can fix the movement state of the mechanism inside the fixing mechanism 4.

[0012] Reference Figures 2 to 4 Each movable rod 47 has two sliding grooves 46 inside. The outer side of the sliding rod 48 is slidably connected to the inside of the sliding groove 46. The sliding groove 46 serves as the movement track for the sliding rod 48, strictly limiting the sliding direction of the sliding rod 48 and ensuring that the sliding rod 48 can only move along the extension direction of the sliding groove 46, preventing it from deviating during movement. The outer side of the movable rod 47 is slidably connected to the inside of the fixed block 41. The fixed block 41 provides support for the movement of the movable rod 47, ensuring its stability during operation. The outer side of the support rod 493 is fixedly connected to the inside of the fixed block 41. The fixing of the support rod 493 ensures the stability of the slide rail 494 and provides support for the slider 492. The adjacent sides of the two clamping rods 495 are installed on the outer side of the reinforcing bar 5, thereby clamping and fixing the reinforcing bar 5. The outer side of the pawl 497 contacts the outer side of the ratchet 496. The pawl 497 can be locked between the teeth of the ratchet 496 when the ratchet 496 stops moving, fixing the movement state of the ratchet 496. The outer side of the ratchet 496 contacts the outer side of the spring 498, while the spring 498 applies pressure to the pawl 497, ensuring that the pawl 497 can contact the ratchet 496. The outer side of the clamping rod 495 is slidably connected to the inside of the fixing block 41, limiting and supporting the clamping rod 495. Specifically, the sliding groove 46 moves along with the moving rod 47, and through its own movement, it drives the sliding rod 48 to move along its track, so that the sliding rod 48 drives the subsequent components to clamp and fix the steel bar 5. The fixing block 41 provides stable support for the moving rod 47 and the support rod 493. The coordinated action of the ratchet 496, the pawl 497 and the spring piece 498 can fix the movement state of the internal components of the fixing mechanism 4.

[0013] The implementation principle of this application embodiment is as follows: Rotating the rotating rod 42 causes it to rotate, which in turn drives the first bevel gear 43 to rotate. The movement of the first bevel gear 43 causes the second bevel gear 45, which meshes with it, to rotate. The rotation of the second bevel gear 45 causes the semi-threaded rod 44 to rotate accordingly, and drives the moving rod 47 to move along with the semi-threaded rod 44. The semi-threaded rod 44 and the moving rod 47 are threadedly connected, and the movement of the moving rod 47 is restricted by the fixed block 41, causing the moving rod 47 to move along the axial direction of the semi-threaded rod 44 on its outer side. This causes the sliding rod 48 to move within its internal sliding groove 46, thereby driving the connecting rod 491 to move... The movement involves connecting rod 491 to slider 492. Through the coordinated action of slider 492, slide rail 494, and support rod 493, clamping rod 495 moves to the nearest side, thereby clamping and fixing the reinforcing bar 5. This achieves the fixation of the embedded part, which can evenly transfer the external force borne by the embedded part to the main reinforcing bar 5 network through the fixing device, rather than relying solely on the bond force between the embedded part and the concrete. This significantly improves the pull-out and shear bearing capacity of the joint, reduces structural safety hazards caused by loosening of the embedded part during long-term use, and shortens the construction time of a single process. The device is easy to install and simple for workers to operate, which can shorten the installation time of a single set of embedded parts, speed up the overall construction progress, and save on construction costs.

[0014] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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.

Claims

1. A pre-embedded component fixing device for concrete pouring, comprising a top plate (1), characterized in that: The bottom end of the top plate (1) is fixedly connected to multiple legs (2), and multiple fixing rings (3) are rotatably connected to the outside of the multiple legs (2). Multiple fixing mechanisms (4) are installed on the outside of the multiple fixing rings (3), and two steel bars (5) are installed inside the multiple fixing mechanisms (4). The fixing mechanism (4) includes a fixing block (41), the outer side of the fixing block (41) is fixedly connected to the outer side of the fixing ring (3), the inner side of the fixing block (41) is rotatably connected to a rotating rod (42), the outer side of the rotating rod (42) is fixedly connected to a bevel gear one (43), the inner side of the fixing block (41) is rotatably connected to a semi-threaded rod (44), the outer side of the semi-threaded rod (44) is fixedly connected to a bevel gear two (45), the outer side of the bevel gear two (45) is meshed with the outer side of the bevel gear one (43), the outer side of the semi-threaded rod (44) is threadedly connected to a moving rod (47), the inner side of the moving rod (47) is slidably connected to two sliding rods (48), and the outer side of the two sliding rods (48) is equipped with a clamping mechanism (49).

2. The pre-embedded part fixing device for concrete pouring according to claim 1, characterized in that: The clamping mechanism (49) includes two connecting rods (491). The inside of the connecting rods (491) is fixedly connected to the outside of the sliding rod (48). The other end of each of the two connecting rods (491) is fixedly connected to a slider (492). The inside of each of the two sliders (492) is slidably connected to a slide rail (494). The other side of the slide rail (494) is fixedly connected to a support rod (493). The other side of each of the two sliders (492) is fixedly connected to two clamping rods (495). The outside of the rotating rod (42) is fixedly connected to a ratchet (496). The inside of the fixing block (41) is rotatably connected to a pawl (497). The inside of the fixing block (41) is fixedly connected to a spring piece (498).

3. The pre-embedded part fixing device for concrete pouring according to claim 1, characterized in that: The movable rod (47) has two sliding grooves (46) inside, and the outer side of the sliding rod (48) is slidably connected to the inside of the sliding groove (46).

4. The pre-embedded part fixing device for concrete pouring according to claim 2, characterized in that: The outer side of the movable rod (47) is slidably connected to the inside of the fixed block (41), and the outer side of the support rod (493) is fixedly connected to the inside of the fixed block (41).

5. A pre-embedded part fixing device for concrete pouring according to claim 2, characterized in that: The two clamps (495) are mounted on the outer side of the reinforcing bar (5) with their adjacent sides in contact with the outer side of the ratchet (497).

6. The pre-embedded part fixing device for concrete pouring according to claim 2, characterized in that: The outer side of the ratchet (496) contacts the outer side of the spring (498), and the outer side of the clamp (495) is slidably connected to the inside of the fixing block (41).

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