A pre-embedded part fixing device

Abstract

The utility model relates to the technical field of foundation construction, concretely is a kind of embedded part fixing device. It includes pre -buried component, positioning assembly, first level and second level. Pre -buried component includes steel sheet and the reinforcement cage being arranged in the lower end of steel sheet, and the blanking hole is set up on steel sheet;Positioning assembly includes rectangular frame, two connecting sliding plates, four L type positioning rods and four positioning pieces;First level and second level are respectively installed on the adjacent two sides of rectangular frame. The core of the device is to physically separate the positioning assembly with temporary positioning, leveling function and permanently buried part, and greatly save material and labor cost.

Description

Technical Field

[0001] This utility model relates to the field of foundation construction technology, and in particular to a pre-embedded component fixing device. Background Technology

[0002] Foundation construction refers to a series of procedures carried out under the foundation of a building or structure, including earthwork excavation, foundation reinforcement, installation of embedded parts, and concrete pouring. Embedded parts refer to components that are pre-installed or buried in concealed works. These components are placed during the structural pouring to facilitate connection with the superstructure and form a stable connection point between the foundation and the superstructure. When installing existing embedded parts, they are usually first placed in the pre-set foundation soil layer, and then completely buried by pouring concrete. After the concrete has completely solidified, a stable connection foundation is formed.

[0003] The existing embedded parts have the following problems during installation: 1. It is difficult to achieve leveling and fixing in the limited space of the pit; 2. The fixing structure and leveling structure are usually integrated with the embedded parts and are permanently embedded in the concrete after pouring, which cannot be recycled. Utility Model Content

[0004] The purpose of this utility model is to address the problems existing in the background technology by proposing a pre-embedded part fixing device.

[0005] The technical solution of this utility model is a pre-embedded part fixing device, comprising:

[0006] The embedded component includes a steel plate and a steel cage set at the lower end of the steel plate, and the steel plate has a feeding hole.

[0007] The positioning assembly includes a rectangular frame, two connecting slides, four L-shaped positioning rods, and four positioning components. Each of the four corners at the bottom of the rectangular frame is connected to a rod with a pointed tip. The two connecting slides are slidably mounted inside the rectangular frame. A drive assembly for driving the two connecting slides to move closer or further apart is installed on the rectangular frame. The four L-shaped positioning rods are connected to the two ends of the two connecting slides respectively, and the four positioning components are connected to a steel plate.

[0008] The first level and the second level are respectively installed on the adjacent two sides of the rectangular frame.

[0009] Preferably, it also includes a funnel, which is mounted on a rectangular frame, and the bottom end of the funnel is connected to a discharge pipe, the outer diameter of which is smaller than the diameter of the discharge hole.

[0010] Preferably, the bottom of the funnel is connected to multiple positioning posts, and the rectangular frame is connected to multiple sleeves that correspond one-to-one with the multiple positioning posts.

[0011] Preferably, there are four sleeves, each located at the midpoint of the rectangular frame.

[0012] Preferably, the drive assembly includes a bidirectional lead screw and a knob. A lead screw mounting housing is provided on the side of the rectangular frame. The lower part of the lead screw mounting housing is open. Connecting rods are connected to two connecting slides. The ends of the two connecting rods are slidably mounted on the inside of the lead screw mounting housing. The bidirectional lead screw is rotatably mounted on the inside of the lead screw mounting housing. Both connecting rods are threadedly connected to the bidirectional lead screw. The knob is connected to the end of the bidirectional lead screw.

[0013] Preferably, the four positioning elements are arranged in a one-to-one correspondence with the four L-shaped positioning rods. The positioning elements are provided with positioning holes for the L-shaped positioning rods to be inserted. The positioning elements are roughly "n" shaped.

[0014] Compared with the prior art, the present invention has the following beneficial technical effects:

[0015] Summary of technical advantages and in-depth explanation of working principles:

[0016] 1. The core of this device lies in physically separating the positioning components with temporary positioning and leveling functions from the permanently embedded part. This completely solves the problem of temporary support structures being consumed at one time or difficult to recycle in traditional methods, and greatly saves material and labor costs.

[0017] 2. Using a rigid rectangular frame erected above the foundation pit as a reference platform, its position is higher than the ground space, and the open construction environment makes it more convenient to observe the level and perform leveling operations, overcoming the disadvantages of difficulty and poor accuracy in directly adjusting the level of embedded parts in narrow and deep foundation pits.

[0018] 3. The insertion rods at the four corners of the frame are deeply inserted into the foundation pit, providing strong resistance to displacement. This can effectively reduce the displacement of the embedded components caused by concrete pouring impact, vibration disturbance, and slight external force collision.

[0019] 4. When construction workers use string lines to measure elevations, the measuring points can be very close to the frame itself rather than the steel plates buried deep in the pit, making it easier to ensure the consistency of the installation height of multiple embedded parts. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is an exploded view of the present invention.

[0022] Figure 3 This is a schematic diagram of the structure at the bottom of the rectangular frame in this utility model.

[0023] Reference numerals: 1. Reinforcing cage; 2. Steel plate; 201. Discharge hole; 3. Rectangular frame; 41. First level; 42. Second level; 5. Insert rod; 6. Funnel; 7. Discharge pipe; 8. Connecting slide plate; 9. L-shaped positioning rod; 10. Sleeve; 11. Positioning post; 12. Screw mounting housing; 13. Positioning component; 14. Two-way screw; 15. Connecting rod; 16. Knob. Detailed Implementation

[0024] Example 1

[0025] like Figures 1-3 As shown, the embedded part fixing device proposed in this embodiment includes an embedded component, a positioning component, a first level 41 and a second level 42.

[0026] The embedded component includes a steel plate 2 and a reinforcing cage 1 set at the lower end of the steel plate 2. The steel plate 2 has a material discharge hole 201.

[0027] The positioning assembly includes a rectangular frame 3, two connecting slide plates 8, four L-shaped positioning rods 9, and four positioning components 13. Each of the four corners at the bottom of the rectangular frame 3 is connected to a rod 5, with a pointed tip at the bottom. The two connecting slide plates 8 are slidably mounted inside the rectangular frame 3. A drive assembly for moving the two connecting slide plates 8 closer together or further apart is mounted on the rectangular frame 3. The drive assembly includes a two-way lead screw 14 and a knob 16. A lead screw mounting housing 12 is located on the side of the rectangular frame 3, with an opening at the bottom. Each of the two connecting slide plates 8 is connected to... The device is equipped with connecting rods 15, the ends of which are slidably mounted on the inner side of the lead screw mounting housing 12. The bidirectional lead screw 14 is rotatably mounted on the inner side of the lead screw mounting housing 12. Both connecting rods 15 are threadedly connected to the bidirectional lead screw 14. The knob 16 is connected to the end of the bidirectional lead screw 14. Four L-shaped positioning rods 9 are respectively connected to the two ends of the connecting slide plates 8 on both sides. Four positioning parts 13 are connected to the steel plate 2. The four positioning parts 13 are set one-to-one with the four L-shaped positioning rods 9. The positioning parts 13 are provided with positioning holes for the L-shaped positioning rods 9 to be inserted. The positioning parts 13 are roughly "n" shaped.

[0028] The first level 41 and the second level 42 are respectively installed on the adjacent two sides of the rectangular frame 3.

[0029] The following is the specific working principle of this technical solution:

[0030] Assembly of the pre-embedded components and positioning components: Cover the pre-embedded components with the rectangular frame 3 of the positioning components, drive the rotary knob 16 to rotate the bidirectional lead screw 14, the rotation of the bidirectional lead screw 14 drives the two connecting rods 15 to move in opposite directions within the lead screw mounting housing 12, thereby driving the two connecting slide plates 8 to slide synchronously inside the rectangular frame 3; when the two connecting slide plates 8 move in opposite directions, the four L-shaped positioning rods 9 fixed at both ends move inward accordingly, and the knob 16 is precisely adjusted so that the lower end of each L-shaped positioning rod 9 is accurately inserted into the positioning hole of the corresponding positioning component 13. Since the rectangular frame 3 is rigid and the fit between the L-shaped positioning rods 9 and the positioning component 13 is precise, this ensures that the plane of the steel plate 2 is basically parallel to the plane of the rectangular frame 3.

[0031] Pit placement and leveling of rectangular frame 3: Excavate a pit slightly larger than the pre-embedded component, mainly the steel cage 1, at the designated location; place the entire pre-embedded component into the pit, suspending it inside, while the rectangular frame 3 is erected above the pit opening; use the insert rods 5 at the four corners of the bottom of the rectangular frame 3 and their pointed structures to firmly nail the insert rods 5 into the solid soil around the pit, which initially fixes the position of the rectangular frame 3 to prevent it from moving easily; during this process, observe the first level 41 and the second level 42 installed on the adjacent sides of the rectangular frame 3, and ensure the two levels by slightly adjusting, such as by tapping or prying, the depth of the rectangular frame 3 or its insert rods 5 in the soil.

[0032] The advantages of the above structure are: 1. Because the rectangular frame 3 is located above the ground, there is ample operating space and the level reading is clearly visible, making the leveling operation very convenient and intuitive; 2. Because the steel plate 2 is rigidly connected to the L-shaped rod, once the rectangular frame 3 is precisely adjusted to a horizontal state, it means that the steel plate 2 below is also precisely adjusted to a horizontal state, which fundamentally solves the problem that the embedded parts themselves are difficult to achieve precise leveling in the pit.

[0033] Concrete pouring and auxiliary material placement: Concrete is poured into the inside of the pit through the material placement hole 201. At the same time, a concrete vibrator is inserted into the material placement hole 201 to compact the concrete, reduce air bubbles, and make the concrete evenly fill the inside of the pit.

[0034] Disassembly and Recycling of Positioning Components: The positioning components can be disassembled when the concrete to be poured has a certain strength to maintain the position of the embedded parts without deformation, but has not yet fully hardened. Rotating the knob 16 in the opposite direction drives the bidirectional lead screw 14 to rotate, causing the two connecting slide plates 8 to move away from each other. The connecting slide plates 8 drive the four L-shaped positioning rods 9 to move outward synchronously, so that the bottom end of the L-shaped positioning rods 9 completely exits from the positioning hole. At this point, the positioning components are completely separated from the embedded components. Then, the rectangular frame 3 along with all the positioning component inserts 5 on it is pulled out of the ground. The removed positioning components are cleaned to remove the adhering concrete residue and check the integrity of each component. The entire positioning component can be used for the installation and fixing of the next embedded component.

[0035] The advantages of the above structure are: traditional temporary supports and fixing structures are usually embedded in concrete after one-time casting, while the positioning components of this device completely avoid this waste, thereby realizing the recycling of the device and significantly reducing construction costs.

[0036] Example 2

[0037] like Figure 1 and Figure 2 As shown, the embedded part fixing device proposed in this embodiment, compared with the first embodiment, also includes a funnel 6. The funnel 6 is installed on the rectangular frame 3. The bottom end of the funnel 6 is connected to a discharge pipe 7. The outer diameter of the discharge pipe 7 is smaller than the diameter of the discharge hole 201. The bottom end of the funnel 6 is connected to a plurality of positioning posts 11. The rectangular frame 3 is connected to a plurality of sleeves 10 corresponding to the plurality of positioning posts 11.

[0038] There are four sleeves 10, which are located at the midpoints of the four sides of the rectangular frame 3. When the auxiliary positioning line passes through the connection of two sleeves 10, it proves that the installation position of the rectangular frame 3 meets the requirements.

[0039] In this embodiment, the funnel 6 is quickly and accurately positioned and installed by inserting multiple positioning posts 11 at its bottom into the corresponding sleeves 10 on the rectangular frame 3. When pouring concrete, the concrete is poured into the funnel 6 and flows out through the discharge pipe 7. The outer diameter of the discharge pipe 7 is designed to be smaller than the diameter of the discharge holes 201 of the steel plate 2, so the operator can easily align and insert or place the discharge pipe 7 close to the discharge holes 201 of the steel plate 2.

[0040] The quick-installable funnel 6 and discharge pipe 7 design guides concrete into the reinforcing cage of the core area of ​​the embedded part and injects it from the discharge hole 201 of the steel plate 2. This greatly reduces the free fall height of the concrete and the direct impact force on the embedded part, avoiding concrete splashing and damage to the positioning accuracy.

[0041] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A device for fixing a preform, characterized in that, include: The embedded component includes a steel plate (2) and a steel cage (1) set at the lower end of the steel plate (2). The steel plate (2) has a feeding hole (201). The positioning component includes a rectangular frame (3), two connecting slide plates (8), four L-shaped positioning rods (9) and four positioning parts (13). The four corners at the bottom of the rectangular frame (3) are connected to insert rods (5), and the bottom of the insert rods (5) is provided with a pointed structure. The two connecting slide plates (8) are slidably installed on the inside of the rectangular frame (3). The rectangular frame (3) is equipped with a driving component for driving the two connecting slide plates (8) to move closer or further apart. The four L-shaped positioning rods (9) are respectively connected to the two ends of the two connecting slide plates (8). The four positioning parts (13) are all connected to the steel plate (2). The first level (41) and the second level (42) are respectively installed on the adjacent two sides of the rectangular frame (3).

2. A device according to claim 1, wherein It also includes a funnel (6), which is installed on a rectangular frame (3). The bottom end of the funnel (6) is connected to a discharge pipe (7), the outer diameter of which is smaller than the diameter of the discharge hole (201).

3. A device according to claim 2, wherein The bottom of the funnel (6) is connected to multiple positioning posts (11), and the rectangular frame (3) is connected to multiple sleeves (10) that correspond one-to-one with the multiple positioning posts (11).

4. A device according to claim 3, wherein There are four sleeves (10) located at the midpoints of the rectangular frame (3).

5. The device of claim 1, wherein: The drive assembly includes a bidirectional lead screw (14) and a knob (16). A lead screw mounting housing (12) is provided on the side of the rectangular frame (3). The lower part of the lead screw mounting housing (12) is open. Two connecting slides (8) are connected to connecting rods (15). The ends of the two connecting rods (15) are slidably mounted on the inside of the lead screw mounting housing (12). The bidirectional lead screw (14) is rotatably mounted on the inside of the lead screw mounting housing (12). The two connecting rods (15) are threadedly connected to the bidirectional lead screw (14). The knob (16) is connected to the end of the bidirectional lead screw (14).

6. The device of claim 1, wherein: Four positioning parts (13) are set one-to-one with four L-shaped positioning rods (9). The positioning parts (13) have positioning holes for the L-shaped positioning rods (9) to be inserted. The positioning parts (13) are roughly "n" shaped.

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