Column type inspection pit structure

Abstract

A stand column type inspection pit structure comprises a base and a plurality of prefabricated stand columns, a plurality of positioning parts are arranged on the upper side of the base at intervals, each prefabricated stand column is vertically connected to the upper side of the base through the corresponding positioning part, and fixing parts are connected to the peripheral faces, close to the upper ends, of the prefabricated stand columns. A first connecting piece is connected between every two adjacent fixing pieces in the length direction of the base, and a second connecting piece is connected between every two adjacent fixing pieces in the width direction of the base. The prefabricated stand columns are adopted for assembly, the site construction period of the stand columns can be effectively shortened, the construction efficiency is improved, and meanwhile the positioning precision of the stand columns can be improved by arranging the positioning pieces; by arranging the fixing pieces and the connecting pieces, the multiple stand columns can be hoisted at the same time, the installation efficiency of the stand columns can be improved, the height and the position of each stand column are adjusted before installation, and therefore the construction precision of the prefabricated stand columns is improved.

Description

Technical Field

[0001] This utility model relates to the field of track construction technology, and in particular to a column-type inspection pit structure. Background Technology

[0002] Rail transit, as a fast, punctual, high-capacity, and pollution-free green transportation mode, is widely used in urbanization. To create a safe and high-quality service environment and meet the needs of daily train inspection and maintenance, a good inspection and maintenance facility is required, and column-type inspection pits are an essential component of the depot's maintenance workshop.

[0003] Currently, most of the columns for column-type inspection pits are constructed using cast-in-place methods. Due to the large number of columns, the construction period for formwork and cast-in-place construction is long, resulting in low overall construction efficiency. After the columns are poured, tracks need to be installed on the top surface of the columns. However, due to the difficulty in controlling the on-site pouring accuracy, the overall accuracy is insufficient to meet the requirements for track construction. Summary of the Invention

[0004] The purpose of this invention is to overcome the defects and problems of low construction efficiency and low construction accuracy in the existing technology, and to provide a column-type inspection pit structure with higher construction efficiency and higher construction accuracy.

[0005] To achieve the above objectives, the technical solution of this utility model is: a column-type inspection pit structure, including a base and multiple prefabricated columns. Multiple positioning members are spaced apart on the upper side of the base. Each prefabricated column is vertically connected to the upper side of the base through the positioning member. A fixing member is connected to the outer peripheral surface of the prefabricated column near the upper end. A first connecting member is connected between two adjacent fixing members along the length direction of the base, and a second connecting member is connected between two adjacent fixing members along the width direction of the base.

[0006] The positioning component includes multiple embedded sleeves, and the upper side of the base has multiple mounting grooves. The embedded sleeves are installed in the mounting grooves, and the upper end of the embedded sleeves is threaded with a support rod. The lower end face of the precast column has a connecting hole that matches the support rod.

[0007] The upper side of the base is provided with positioning grooves that correspond one-to-one with the multiple prefabricated columns, and the positioning grooves are matched with the shape of the prefabricated columns.

[0008] The fastener includes four square clamps, the inner walls of which are fitted against the outer surface of the precast column, and adjacent square clamps are connected to each other by fasteners.

[0009] The square clamp includes a bent component and two bent lugs. The bent component is L-shaped, and its inner sidewall is fitted with the adjacent two sides of the precast column. The two bent lugs are respectively connected to the left and right sides of the bent component.

[0010] The fastener includes a bolt, the tail of which passes through the bending lugs on two adjacent bending members and is threaded with a nut, the nut abutting against one side of the bending lug.

[0011] The first connector includes a first connecting rod, and the outer side wall of the fixing member is provided with a first connecting groove. The two ends of the first connecting rod are respectively slidably connected to the first connecting grooves of two adjacent fixing members.

[0012] The first connecting groove is dovetail-shaped, and the two ends of the first connecting rod are connected to the first tenon that matches the shape of the first connecting groove. The first tenon is slidably connected to the first connecting groove.

[0013] The second connector includes a second connecting rod, and the outer side wall of the fixing member is provided with a second connecting groove. The two ends of the second connecting rod are respectively slidably connected to the second connecting grooves of two adjacent fixing members.

[0014] The second connecting groove is dovetail-shaped, and the two ends of the second connecting rod are connected to second tenons that match the shape of the second connecting groove. The second tenons are slidably connected to the second connecting groove.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. In this utility model, the prefabricated column assembly method for the inspection pit structure effectively shortens the on-site construction period and improves construction efficiency compared to existing cast-in-place technology. Furthermore, the positioning accuracy of the columns is improved by using positioning components; and multiple columns can be hoisted simultaneously using fixing and connecting components. This not only improves installation efficiency but also ensures that the height and position of each column are adjusted before installation, thus enhancing the construction accuracy of the prefabricated columns and guaranteeing the construction effect of the column-type inspection pit. Therefore, this utility model offers high construction efficiency and high construction accuracy.

[0017] 2. In this utility model's column-type inspection pit structure, by setting a pre-embedded sleeve and a support rod, the support rod can rotate within the pre-embedded sleeve, thereby adjusting its height. Simultaneously, the precast column has corresponding connecting holes, allowing the precast column to be placed on the support rod. This provides a coarse adjustment of the precast column's elevation, enabling effective control over its height. Furthermore, the positioning groove facilitates the positioning of the precast column, ensuring its adjustment accuracy. Therefore, this utility model is convenient to use and offers high construction precision.

[0018] 3. In this utility model's column-type inspection pit structure, the fixing components are connected by four clamps. The sidewalls of the clamps fit snugly against the outer surface of the precast column, increasing the friction between them and preventing slippage during the hoisting of the precast column. The clamps are connected by bolts and nuts, accommodating columns of different sizes. The use of mortise and tenon joints ensures a tighter connection between adjacent fixing components, resulting in high stability. Therefore, this utility model offers stable operation and a wide range of applications. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a cross-sectional schematic diagram of the prefabricated column and base in this utility model.

[0021] Figure 3 This is a structural schematic diagram of the prefabricated column, fixing component, first connecting component, and second connecting component of this utility model.

[0022] Figure 4 This is a structural schematic diagram of the fastener and fastener of this utility model.

[0023] Figure 5 This is a structural schematic diagram of the square clamp and the first connecting member of this utility model.

[0024] Figure 6 This is a structural schematic diagram of the square clamp and the second connecting member of this utility model.

[0025] In the diagram: Base 1, Positioning groove 11, Mounting groove 12, Precast column 2, Connecting hole 21, Positioning component 3, Embedded sleeve 31, Support rod 32, Fixing component 4, Square clamp 41, Bending component 411, Bending ear 412, First connecting groove 42, Second connecting groove 43, Fastener 5, Bolt 51, Nut 52, First connector 6, First connecting rod 61, First tenon 62, Second connector 7, Second connecting rod 71, Second tenon 72. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Example 1:

[0028] See Figure 1 and Figure 2 A column-type inspection pit structure includes a base 1 and multiple prefabricated columns 2. Multiple positioning elements 3 are spaced apart on the upper side of the base 1. Each prefabricated column 2 is vertically connected to the upper side of the base 1 via the positioning element 3. A fixing element 4 is connected to the outer circumferential surface of the prefabricated column 2 near its upper end. A first connecting element 6 connects two adjacent fixing elements 4 along the length direction of the base 1, and a second connecting element 7 connects two adjacent fixing elements 4 along the width direction of the base 1. Positioning grooves 11, corresponding one-to-one with the multiple prefabricated columns 2, are opened on the upper side of the base 1. The positioning grooves 11 match the shape of the prefabricated columns 2. Each positioning element 3 includes multiple embedded sleeves 31. Multiple mounting grooves 12 are opened on the upper side of the base 1, and the embedded sleeves 31 are installed in the mounting grooves 12. A support rod 32 is threadedly connected to the upper end of each embedded sleeve 31. A connecting hole 21 matching the support rod 32 is opened on the lower end face of the prefabricated column 2.

[0029] In this embodiment, the base 1 can be cast first, and the precast column 2 can be prefabricated during the curing stage after casting. In addition, the cast base 1 has a positioning groove 11 and an installation groove 12. There are 4 installation grooves 12. Then, the pre-embedded sleeve 31 is installed in the installation groove 12, and the support rod 32 is rotated so that the height of the support rod 32 is consistent with the set height. Then, the four connecting holes 21 on the precast column 2 are aligned with the four support rods 32, and the precast column 2 is placed vertically in the positioning groove 11 from top to bottom.

[0030] Meanwhile, steel bars are vertically connected to the base 1 and horizontally connected to the lower end of the precast column 2. After the precast column 2 is placed, the two steel bars overlap to form a steel mesh. Then, a reverse wall is poured at the steel mesh and the poured reverse wall is in contact with the precast column 2. The reverse wall 4 covers the two steel bars. The reverse wall is a structure used to make the base 1 and the precast column 2 stably connected.

[0031] Once the curing strength of the back wall reaches the set strength, grouting is finally performed into the positioning groove 11 to fill the gap between the base 1 and the precast column 2.

[0032] Example 2:

[0033] The basic content is the same as in Example 1, except that:

[0034] See Figure 3 and Figure 4The fixing component 4 includes four square clamps 41. The inner sidewalls of the four square clamps 41 are fitted with the outer sidewalls of the precast column 2. Adjacent square clamps 41 are connected to each other by fasteners 5. Each square clamp 41 includes a bent part 411 and two bent ears 412. The bent part 411 is L-shaped. The inner sidewall of the bent part 411 is fitted with the two adjacent sides of the precast column 2. The two bent ears 412 are respectively connected to the left and right sides of the bent part 411.

[0035] The fastener 5 includes a bolt 51, the tail of which passes through the bending lugs 412 on two adjacent bending members 411 and is threaded with a nut 52, the nut 52 abutting against one side of the bending lug 412.

[0036] In this embodiment, the included angle between the bending ear 412 and the bending piece 411 is 90 degrees. Both the bending ear 412 and the bending piece 411 are covered with protective pads. The protective pads are made of rubber. Setting rubber protective pads to cover the bending ear 412 and the bending piece 411 can reduce frictional wear.

[0037] During installation, the tail of the bolt 51 is passed through the connecting hole of the bending lug 412, and the head of the bolt 51 abuts against the bending lug 412. Then, the nut 52 is tightened to achieve a fixed connection between the two square clamps 41. During disassembly, the nut 52 is rotated to disengage the head of the bolt 51 from the bending lug 412, and the two square clamps 41 can be separated.

[0038] Example 3:

[0039] The basic content is the same as in Example 1, except that:

[0040] See Figure 4 and Figure 5 The first connecting member 6 includes a first connecting rod 61. The outer side wall of the fixing member 4 is provided with a first connecting groove 42. The two ends of the first connecting rod 61 are respectively slidably connected to the first connecting groove 42 of two adjacent fixing members 4. The first connecting groove 42 is dovetail shaped. The two ends of the first connecting rod 61 are connected to a first tenon 62 that matches the shape of the first connecting groove 42. The first tenon 62 is slidably connected to the first connecting groove 42.

[0041] In this embodiment, multiple precast columns 2 can be connected and fixed by multiple first connectors 6. Lifting lugs can be installed on the first connecting rod 61. The first connecting rod 61 is lifted by the lifting equipment, thereby driving multiple precast columns 2 to be lifted synchronously. After the precast columns 2 are installed, the two precast columns 2 are separated by pulling the first connecting rod 61.

[0042] Example 4:

[0043] The basic content is the same as in Example 1, except that:

[0044] See Figure 4 and Figure 6 The second connecting member 7 includes a second connecting rod 71. The outer side wall of the fixing member 4 is provided with a second connecting groove 43. The two ends of the second connecting rod 71 are respectively slidably connected to the second connecting groove 43 of two adjacent fixing members 4. The second connecting groove 43 is dovetail-shaped. The two ends of the second connecting rod 71 are connected to a second tenon 72 that matches the shape of the second connecting groove 43. The second tenon 72 is slidably connected to the second connecting groove 43.

[0045] In this embodiment, two precast columns 2 can be connected and fixed by two second connecting parts 7. Lifting lugs can be installed on the second connecting rod 71. The second connecting rod 71 can be lifted by the lifting equipment, thereby driving the two precast columns 2 to be lifted synchronously. After the precast columns 2 are installed, the two precast columns 2 can be separated by pulling the second connecting rod 71. This can be used in conjunction with the first connecting part 6 to realize the array-style lifting and transportation of the precast columns 2, which greatly improves the overall construction efficiency.

Claims

1. A column-style inspection pit structure, characterized by: The base includes a base (1) and multiple prefabricated columns (2). Multiple positioning elements (3) are spaced apart on the upper side of the base (1). Each prefabricated column (2) is vertically connected to the upper side of the base (1) through the positioning element (3). A fixing element (4) is connected to the outer peripheral surface of the prefabricated column (2) near the upper end. A first connecting element (6) is connected between two adjacent fixing elements (4) along the length direction of the base (1), and a second connecting element (7) is connected between two adjacent fixing elements (4) along the width direction of the base (1).

2. A column inspection pit structure according to claim 1, wherein: The positioning component (3) includes multiple embedded sleeves (31), and the upper side of the base (1) is provided with multiple mounting grooves (12). The embedded sleeves (31) are installed in the mounting grooves (12). The upper end of the embedded sleeves (31) is threadedly connected to a support rod (32), and the lower end face of the precast column (2) is provided with a connecting hole (21) that matches the support rod (32).

3. A column inspection pit structure according to claim 1, wherein: The upper side of the base (1) is provided with positioning grooves (11) that correspond one-to-one with the multiple prefabricated columns (2), and the positioning grooves (11) match the shape of the prefabricated columns (2).

4. A column inspection pit structure according to claim 1, wherein: The fastener (4) includes four square clamps (41), the inner walls of the four square clamps (41) are attached to the outer side of the precast column (2), and adjacent square clamps (41) are connected to each other by fasteners (5).

5. A column inspection pit structure according to claim 4, wherein: The square clamp (41) includes a bent part (411) and two bent ears (412). The bent part (411) is L-shaped. The inner sidewall of the bent part (411) is attached to the adjacent two sides of the precast column (2). The two bent ears (412) are respectively connected to the left and right sides of the bent part (411).

6. A column inspection pit structure according to claim 5, wherein: The fastener (5) includes a bolt (51), the tail of which passes through the bending lugs (412) on two adjacent bending members (411) and is threaded with a nut (52), the nut (52) abutting against one side of the bending lugs (412).

7. A column inspection pit structure according to claim 1, wherein: The first connector (6) includes a first connecting rod (61), and the outer side wall of the fixing member (4) is provided with a first connecting groove (42). The two ends of the first connecting rod (61) are respectively slidably connected to the first connecting groove (42) of two adjacent fixing members (4).

8. A column inspection pit structure according to claim 7, wherein: The first connecting groove (42) is dovetail shaped, and the two ends of the first connecting rod (61) are connected to the first tenon (62) that matches the shape of the first connecting groove (42). The first tenon (62) is slidably connected to the first connecting groove (42).

9. A column inspection pit structure according to claim 1, wherein: The second connector (7) includes a second connecting rod (71), and the outer side wall of the fixing member (4) is provided with a second connecting groove (43). The two ends of the second connecting rod (71) are respectively slidably connected to the second connecting groove (43) of two adjacent fixing members (4).

10. A column inspection pit structure according to claim 9, wherein: The second connecting groove (43) is dovetail-shaped, and two ends of the second connecting rod (71) are connected with second tenons (72) matching the shape of the second connecting groove (43), and the second tenons (72) are slidingly connected to the second connecting groove (43).

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