Artificial ladder for foundation trench construction

Abstract

The utility model relates to the technical field of infrastructure construction, and specifically discloses a manual ladder stand for foundation trench construction, which comprises a ladder stand, a first fixing part and a second fixing part. The bottom and top of the ladder stand are fixed by the first fixing part and the second fixing part respectively, which can avoid the problem of easy sliding or tilting of the ladder stand on soft or uneven ground after being fixed. The first fixing part comprises a mounting plate connected to the ladder stand, a threaded rod and a supporting bottom plate. The threaded rod is made to move vertically by rotating the threaded rod, and then the supporting bottom plate is pressed against the ground, so that the bevel gears of the supporting bottom plate are embedded in the ground to avoid sliding of the bottom of the ladder stand. The second fixing part comprises a supporting frame mounted on an unfolding plate, a sliding groove, a sliding block, a round block and a threaded taper rod. The bottom of the threaded taper rod is made to move downward by rotating the threaded taper rod, and the threaded taper rod is inserted into the ground to fix the top of the ladder stand.

Description

Technical Field

[0001] This utility model relates to the field of infrastructure construction technology, specifically to a manual ladder for foundation trench construction. Background Technology

[0002] Foundation trench: A foundation trench is a special trench excavated specifically for the construction of strip foundations, and it has a long strip geometric feature.

[0003] Foundation trench construction is a common construction process, typically used for underground infrastructure projects such as laying underground pipelines and excavating tunnels. It requires construction workers to frequently climb up and down. Since the foundation trench will eventually be filled in, temporary ladders are needed for workers to move up and down within the trench.

[0004] Existing temporary ladders are usually placed directly on the ground, which can easily slide or tilt on soft or uneven ground, posing a safety hazard. Utility Model Content

[0005] The purpose of this invention is to provide a manual ladder for foundation trench construction to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A manual ladder for foundation trench construction includes a ladder, a first fixing component, and a second fixing component. One or more first fixing components are installed on the left and right sides of the bottom of the ladder, and an unfolding plate is connected to the left and right sides of the top of the ladder. One or more second fixing components are installed on each of the two unfolding plates. The first fixing component includes a mounting plate connected to the ladder, with a vertically arranged threaded rod threaded into the mounting plate. A support base plate with tapered teeth is installed at the bottom of the threaded rod. The second fixing component includes a support frame installed on the unfolding plate. A vertical sliding groove is provided on the left and right sides inside the support frame. It also includes a sliding block, with its left and right ends located within the two sliding grooves, allowing the sliding block to slide vertically. A rotatable circular block is installed inside the sliding block, through which a threaded tapered rod is passed and fixedly installed. The bottom of the threaded tapered rod passes through the support frame and is threadedly connected to the support frame. Rotating the threaded tapered rod adjusts its height.

[0007] Furthermore, the connection between the top of the ladder and the unfolding plate is a sliding connection, with the unfolding plate slidably connected to the inside of the top of the ladder. The two unfolding plates unfold along the left and right sides of the top of the ladder, respectively. Locking bolts are installed on the top of the ladder to lock the unfolding plates and fix them in place.

[0008] Furthermore, each of the two unfolding plates has a roller installed at its bottom, and the ladder also has a pair of rollers installed at its bottom.

[0009] Furthermore, safety railings are installed on both sides of the ladder.

[0010] Furthermore, one or more third fixing members are installed on each side of the ladder. The third fixing member includes a horizontally arranged rotating shaft, one end of which is fixedly connected to the ladder. A rotatable fixing plate is provided on the rotating shaft, and through holes are provided at both ends of the fixing plate.

[0011] Compared with the prior art, this utility model has the following advantages and beneficial effects: The bottom and top of the ladder are secured by a first fixing component and a second fixing component, respectively. This secure fixing prevents the ladder from easily sliding or tilting on soft or uneven ground. The first fixing component includes a mounting plate, a threaded rod, and a support base plate. Rotating the threaded rod causes it to move vertically, which in turn causes the support base plate to press against the ground, embedding its conical teeth into the ground and preventing the bottom of the ladder from sliding. The second fixing component includes a support frame, a sliding groove, a sliding block, a circular block, and a threaded conical rod. Rotating the threaded conical rod causes its bottom to move downwards, inserting it into the ground to secure the top of the ladder. The sliding groove and sliding block limit the upper end of the threaded conical rod, preventing it from deflecting at an angle. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0013] Figure 2 This is a front view of the present utility model.

[0014] Figure 3 This is a side view of the present invention.

[0015] Figure 4 This is a structural diagram of the second fastener.

[0016] Figure 5 This is a diagram of the connection structure of the unfolded plate.

[0017] The labels in the diagram are as follows: 1-ladder, 2-roller, 3-mounting plate, 4-threaded rod, 5-support base plate, 6-support frame, 7-sliding groove, 8-sliding block, 9-threaded cone rod, 10-round block, 11-locking bolt, 12-rotating shaft, 13-fixing plate, 14-perforation, 15-safety fence, 16-expanding plate. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model, so as to provide a better understanding of the concept of the present utility model, the technical problem solved, the technical features constituting the technical solution and the technical effects brought about.

[0019] like Figures 1-4 As shown, a manual ladder for foundation trench construction includes a ladder 1, a first fixing component, and a second fixing component. One or more first fixing components are installed on the left and right sides of the bottom of the ladder 1, and an unfolding plate 16 is connected to the left and right sides of the top of the ladder 1. One or more second fixing components are installed on each of the two unfolding plates 16. The first fixing component includes a mounting plate 3 connected to the ladder 1, with a vertically arranged threaded rod 4 threadedly connected to the mounting plate 3. A support base plate 5 with tapered teeth is installed at the bottom of the threaded rod 4. The second fixing component includes a support frame 6 installed on the unfolding plate 16. A vertical sliding groove 7 is provided on the left and right sides inside the support frame 6, and a sliding block 8 is also included. The left and right ends of the sliding block 8 are located within the two sliding grooves 7, allowing the sliding block 8 to slide vertically. A rotatable circular block 10 is installed inside the sliding block 8, through which a threaded conical rod 9 is passed and fixedly installed. The bottom of the threaded conical rod 9 passes through the support frame 6 and is threadedly connected to the support frame 6. Rotating the threaded conical rod 9 can adjust its height.

[0020] This invention features a first fixing component and a second fixing component installed at the bottom and top of the ladder 1, respectively, to secure the temporary ladder 1 and prevent it from sliding. The first fixing component consists of a threaded rod 4 on a mounting plate 3. The threaded rod 4 has external threads on its surface, and the mounting plate 3 has a threaded hole. The threaded rod 4 passes through the threaded hole to complete the threaded connection. Rotating the threaded rod 4 causes it to move vertically, thereby pressing the support base plate 5 against the ground and embedding the conical teeth of the support base plate 5 into the ground, preventing the bottom of the ladder 1 from sliding. The second fixing component consists of a sliding block 8 slidably connected within a sliding groove 7. A rotatable circular block 10 is mounted on the sliding block 8, through which a threaded conical rod 9 is fixedly installed. The bottom of the threaded conical rod 9 passes through a support frame 6 and is threadedly connected to it. Unidirectional rotation of the threaded conical rod 9 causes its bottom to move downwards, allowing it to be inserted into the ground to secure the top of the ladder 1. The bottom of ladder 1 is located at the bottom of the foundation trench, so the impact of ladder 1 sliding is minimal. A support base plate 5 with conical teeth is sufficient to meet safety requirements and facilitates disassembly. However, the top of ladder 1 is located at the edge of the foundation trench, and sliding at the top of ladder 1 poses a greater risk. Therefore, a threaded conical rod 9 is used for fixation. Inserting the threaded conical rod 9 into the ground provides better fixation. The second fixing component adds a sliding groove 7 and a sliding block 8 compared to the first fixing component. The sliding groove 7 and sliding block 8 restrict the upper end of the threaded conical rod 9 because the resistance encountered when inserting the threaded conical rod 9 into the ground is significant. Adding the sliding groove 7 and sliding block 8 prevents the threaded conical rod 9 from deflecting at an angle.

[0021] like Figure 5As shown, furthermore, the connection between the top of the ladder 1 and the unfolding plate 16 is a sliding connection. The unfolding plate 16 is slidably connected to the inside of the top of the ladder 1, and the two unfolding plates 16 unfold along the left and right sides of the top of the ladder 1, respectively. A locking bolt 11 is installed on the top of the ladder 1 to lock the unfolding plate 16, thus fixing the unfolding plate 16 in place. The unfolding plate 16 allows adjustment of the contact area between the top of the ladder 1 and the ground, and allows adjustment of the insertion position of the threaded tapered rod 9 according to the site conditions.

[0022] Furthermore, each of the two unfolding plates 16 has a roller 2 installed at its bottom, and the ladder 1 also has a pair of rollers 2 installed at its bottom. The ladder 1 of this invention has a pair of rollers 2 installed at its top and bottom, which facilitates the transfer of this invention.

[0023] Furthermore, safety railings 15 are installed on both sides of the ladder 1.

[0024] Furthermore, one or more third fixing members are installed on each side of the ladder 1. Each third fixing member includes a horizontally arranged rotating shaft 12, one end of which is fixedly connected to the ladder 1. A rotatable fixing plate 13 is provided on the rotating shaft 12, and through holes 14 are provided at both ends of the fixing plate 13. The fixing plate 13 in the third fixing member can be rotated to adjust its angle to match the slope angle of the side wall of the foundation trench. Then, a structure such as a conical rod or bolt is inserted into the through holes 14 of the fixing plate 13 to restrict the fixing plate 13, further preventing the ladder 1 from sliding.

[0025] The terms "connection" and "fixing" appearing in this utility model description can refer to fixed connection, processing and forming, welding, or mechanical connection. The specific meaning of the above terms in this utility model should be understood according to the specific circumstances.

[0026] In the description of this utility model, the terms "center", "upper", "lower", "horizontal", "inner", "outer", etc., are used only to indicate the orientation or positional relationship for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A manual ladder for foundation trench construction, characterized in that: Includes a ladder (1), a first fixing component, and a second fixing component; One or more first fixing parts are installed on the left and right sides of the bottom of the ladder (1), and one or more unfolding plates (16) are connected to the left and right sides of the top of the ladder (1). One or more second fixing parts are installed on the two unfolding plates (16). The first fastener includes a mounting plate (3) connected to the ladder (1), a vertically arranged threaded rod (4) is threaded in the mounting plate (3), and a support base plate (5) with conical teeth is installed at the bottom of the threaded rod (4). The second fixing component includes a support frame (6) installed on the unfolding plate (16). The support frame (6) has a vertical sliding groove (7) on the left and right sides inside, and also includes a sliding block (8). The left and right ends of the sliding block (8) are located in the two sliding grooves (7) respectively, so that the sliding block (8) can slide vertically. A rotatable round block (10) is installed inside the sliding block (8). The round block (10) passes through and is fixedly installed with a threaded cone rod (9). The bottom of the threaded cone rod (9) passes through the support frame (6) and is threadedly connected to the support frame (6). Rotating the threaded cone rod (9) can adjust the height of the threaded cone rod (9).

2. The manual ladder for foundation trench construction according to claim 1, characterized in that: The connection between the top of the ladder (1) and the unfolding plate (16) is a sliding connection. The unfolding plate (16) is slidably connected to the inside of the top of the ladder (1). The two unfolding plates (16) unfold along the left and right sides of the top of the ladder (1) respectively. The top of the ladder (1) is fitted with a locking bolt (11), which is used to lock the unfolding plate (16) so that the unfolding plate (16) is fixed.

3. The manual ladder for foundation trench construction according to claim 2, characterized in that: Each of the two unfolding plates (16) has a roller (2) installed at its bottom, and the ladder (1) also has a pair of rollers (2) installed at its bottom.

4. The manual ladder for foundation trench construction according to claim 1, characterized in that: Safety railings (15) are installed on both sides of the ladder (1).

5. The manual ladder for foundation trench construction according to claim 1, characterized in that: The ladder (1) is equipped with one or more third fixing members on each side. The third fastener includes a horizontally arranged rotating shaft (12), one end of which is fixedly connected to the ladder (1). A rotatable fixing plate (13) is provided on the rotating shaft (12), and perforations (14) are provided at both ends of the fixing plate (13).

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