Foundation pit trench backfill device

Abstract

This utility model discloses a pit backfilling device, including a movable support frame and a connecting plate. Rollers are provided on both sides of the movable support frame, and a mixing cylinder is mounted on its upper end. The connecting plate is placed on the inner wall of the mixing cylinder, and a fixing adhesive is provided on its outer wall. A feeding screw motor is installed on the right side of the mixing cylinder, and a feeding shell is provided on the left side. This pit backfilling device effectively pushes the backfilled material to the outlet through the feeding screw inside the feeding shell. Simultaneously, a vibrator provides power to the feeding shell and the outlet, reducing blockage at the outlet. A protective film protects the sealing cap, preventing material from adhering to its inner wall and ensuring its cleanliness. The connecting rod rotates the material, preventing stagnation, and a scraper scrapes away material from the inner wall of the connecting plate as the connecting rod rotates.

Description

Technical Field

[0001] This utility model relates to the field of foundation pit backfilling technology, specifically a foundation pit backfilling device. Background Technology

[0002] The excavation trench refers to the space between the exterior wall of a building's basement or foundation and the edge of the foundation pit, an additional excavation to provide a working surface. Excavation trenches are a crucial detail in construction engineering, and their design and construction must comprehensively consider waterproofing, structural stability, and cost factors, strictly adhering to specifications. Backfilling the trench refers to the process of filling the space between the exterior wall of the basement or foundation and the edge of the foundation pit (called the trench) with backfill material to the natural site elevation. Backfilling is a key step in ensuring structural safety and waterproofing performance in construction engineering. Appropriate materials (such as fluid lightweight soil or graded sand and gravel) must be selected based on the project characteristics, and construction quality must be strictly controlled. The foundation pit trench backfilling device is a piece of equipment used to solve the problem of backfilling soil in the narrow trench space of deep foundation pits. It solves the problem of construction workers being unable to enter the foundation pit or the foundation pit working environment seriously affecting their personal safety. It saves labor costs, improves construction efficiency, and overcomes the common industry difficulty of not being able to properly compact and fill the corners of the foundation pit.

[0003] As disclosed in application number CN202420630654.1, this utility model discloses a backfilling device for narrow trenches in deep foundation pits, specifically relating to the field of building construction technology. It includes a funnel with a conveying pipe connected to its lower part. A U-shaped rod is connected to the bottom of the conveying pipe. The bottom of the funnel is connected to the conveying pipe via a connecting assembly. A support mechanism is provided on the upper outer side of the funnel. This utility model uses the support mechanism to synchronously drive two rotating shafts to rotate. Through transmission, two screws on the same side rotate and drive a connected adjusting cylinder to move outwards relative to each other. This allows the adjusting cylinder to push the connected support seat to move, changing the distance between the two support seats and adapting it to different trenches, thus broadening its applicability. The use of a sleeve and telescopic rod further enhances the support effect on the funnel, making it more stable and practical. The connecting assembly facilitates the assembly and disassembly of the conveying pipe and the funnel, making transportation and use convenient.

[0004] Similar to the above applications, the following shortcomings still exist:

[0005] The poor material flow inside the storage structure can cause materials to accumulate and remain stationary, reducing the efficiency of backfilling.

[0006] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and proposed a foundation pit backfilling device in order to achieve a more practical purpose. Utility Model Content

[0007] The purpose of this invention is to provide a backfilling device for foundation pits and trenches to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a foundation pit backfilling device, comprising a movable support frame and a connecting piece, wherein rollers are provided on both sides of the movable support frame and a mixing cylinder is installed at the upper end of the movable support frame, the connecting piece is installed on the inner wall of the mixing cylinder and a fixing adhesive is provided on the outer wall of the connecting piece, a feeding screw motor is installed on the right side of the mixing cylinder and a feeding shell is provided on the left side of the mixing cylinder.

[0009] Furthermore, the outer wall of the feeding shell is provided with a vibrator, and four vibrators are provided.

[0010] Furthermore, the end of the feeding shell is provided with a discharge port, and the bottom of the feeding shell is provided with a movable support frame 2.

[0011] Furthermore, a sealing cap is provided at the upper end of the mixing cylinder, and a protective film is provided on the inner wall of the sealing cap.

[0012] Furthermore, a servo motor is installed at the upper end of the sealing cover, and a rotating rod is provided at the bottom of the sealing cover.

[0013] Furthermore, connecting rods are provided around the rotating rod, and a scraper is provided at the end of the connecting rod.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model utilizes a feeding screw rod inside the feeding housing to effectively push the backfilled material to the discharge port. Simultaneously, a vibrator provides power to both the feeding housing and the discharge port, reducing clogging. A protective film protects the sealing cap, preventing material from adhering to its inner wall and ensuring its cleanliness. A connecting rod rotates the material, preventing stagnation. A scraper removes material from the inner wall of the connecting plate as the connecting rod rotates. The connecting plate is also detachable for replacement. A fixing adhesive positions the connecting plate. Two movable support frames facilitate movement, ensuring the discharge port aligns well with the foundation pit, preventing material leakage. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of a foundation pit backfilling device according to the present invention;

[0017] Figure 2This is a bottom-view three-dimensional structural diagram of the sealing cover of the foundation pit backfilling device of this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the connecting piece of the foundation pit backfilling device of this utility model.

[0019] In the diagram: 1. Mobile support frame one; 2. Roller; 3. Feeding screw motor; 4. Mixing cylinder; 5. Sealing cover; 6. Servo motor; 7. Feeding shell; 8. Mobile support frame two; 9. Vibrator; 10. Discharge port; 11. Protective film; 12. Rotating rod; 13. Connecting rod; 14. Scraper; 15. Connecting piece; 16. Fixing adhesive. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0022] Example

[0023] like Figures 1-3 As shown, it includes a movable support frame 1 and a connecting piece 15. Rollers 2 are provided on both sides of the movable support frame 1, and a mixing cylinder 4 is installed at the upper end of the movable support frame 1. The connecting piece 15 is installed on the inner wall of the mixing cylinder 4, and a fixing adhesive 16 is provided on the outer wall of the connecting piece 15. A feeding screw motor 3 is installed on the right side of the mixing cylinder 4, and a feeding shell 7 is provided on the left side of the mixing cylinder 4.

[0024] In summary: the connecting piece 15 can be disassembled and replaced with a new one; the fixing adhesive 16 can position the connecting piece 15; the movable support frame 1 and the movable support frame 2 facilitate the movement of the device, so that the discharge port 10 can be well aligned with the foundation pit and prevent material leakage.

[0025] like Figures 1-3 As shown, the outer wall of the feeding shell 7 is provided with a vibrator 9, and there are four vibrators 9. The end of the feeding shell 7 is provided with a discharge port 10, and the bottom of the feeding shell 7 is provided with a movable support frame 8. The upper end of the mixing cylinder 4 is provided with a sealing cover 5, and the inner wall of the sealing cover 5 is provided with a protective film 11. The upper end of the sealing cover 5 is equipped with a servo motor 6, and the bottom of the sealing cover 5 is provided with a rotating rod 12. The rotating rod 12 is surrounded by connecting rods 13, and the end of the connecting rod 13 is provided with a scraper 14.

[0026] In summary: the feeding screw inside the feeding housing 7 can effectively push the backfilled material to the discharge port 10. At the same time, the vibrator 9 can provide power to the feeding housing 7 and the discharge port 10, reducing the blockage of the discharge port 10. The protective film 11 can protect the sealing cover 5, preventing material from adhering to the inner wall of the sealing cover 5, thus ensuring the cleanliness of the sealing cover 5. The connecting rod 13 can drive the material to rotate, preventing the material from not flowing. At the same time, the scraper 14 can scrape off the material on the inner wall of the connecting plate 15 as the connecting rod 13 rotates.

[0027] Working principle: When this type of foundation pit backfilling device is used, it first... Figures 1-3 Place the connecting piece 15 inside the mixing cylinder 4 and press it so that the fixing adhesive 16 on the outer wall can contact the inner wall of the mixing cylinder 4, thus positioning the connecting piece 15. Then, put the mixed backfill material into the mixing cylinder 4, and then cover it with the sealing cover 5. Turn on the servo motor 6 to start the rotating rod 12, which will cause the connecting rod 13 and the scraper 14 to move. The connecting rod 13 can drive the material inside the mixing cylinder 4 to rotate, ensuring the flow of the material. At the same time, when the scraper 14 moves, it can scrape off the material accumulated on the connecting piece 15 in the mixing cylinder 4. Next, turn on the feeding screw motor 3 to make the screw inside the feeding shell 7 rotate, which can transport the mixed material to the discharge port 10 and put the material into the foundation pit fertilizer tank. At the same time, the vibrator 9 can provide power to the feeding shell 7 and the discharge port 10, reducing the blockage of the discharge port 10. The protective film 11 on the inner wall of the sealing cover 5 can protect the sealing cover 5 and prevent the material from adhering to the inner wall of the sealing cover 5, thus ensuring the cleanliness of the sealing cover 5.

[0028] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A backfilling device for foundation pits and trenches, comprising a movable support frame (1) and a connecting piece (15), characterized in that, The movable support frame (1) is provided with rollers (2) on both sides, and a mixing cylinder (4) is provided at the upper end of the movable support frame (1). The connecting piece (15) is placed on the inner wall of the mixing cylinder (4), and a fixing adhesive (16) is provided on the outer wall of the connecting piece (15). A feeding screw motor (3) is installed on the right side of the mixing cylinder (4), and a feeding shell (7) is provided on the left side of the mixing cylinder (4).

2. The foundation pit backfilling device according to claim 1, characterized in that, The outer wall of the feeding shell (7) is provided with a vibrator (9), and there are four vibrators (9).

3. The foundation pit backfilling device according to claim 1, characterized in that, The feeding shell (7) is provided with a discharge port (10) at its end, and a movable support frame (8) is provided at the bottom of the feeding shell (7).

4. The foundation pit backfilling device according to claim 1, characterized in that, The upper end of the mixing cylinder (4) is provided with a sealing cap (5), and the inner wall of the sealing cap (5) is provided with a protective film (11).

5. A backfilling device for foundation pits and trenches according to claim 4, characterized in that, A servo motor (6) is installed at the upper end of the sealing cover (5), and a rotating rod (12) is provided at the bottom of the sealing cover (5).

6. The foundation pit backfilling device according to claim 5, characterized in that, The rotating rod (12) is surrounded by connecting rods (13), and the end of the connecting rod (13) is provided with a scraper (14).

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