Underground engineering supporting device capable of being recycled

Abstract

The utility model relates to the technical field of underground engineering construction auxiliary equipment, and discloses a recyclable underground engineering supporting device which comprises a fixed pipe and a telescopic ejector rod, the lower end of the telescopic ejector rod is in threaded connection with the upper end of the fixed pipe, the upper end of the telescopic ejector rod is connected with a top plate, the fixed pipe is fixedly sleeved with a fixed seat, and the fixed seat is fixedly connected with the telescopic ejector rod. Supporting legs are hinged to the left end and the right end of the fixing base respectively. The fixed pipe is slidably sleeved with a movable sleeve, connecting rods are hinged to the left side and the right side of the movable sleeve respectively, and the ends, away from the movable sleeve, of the connecting rods on the two sides are hinged to the supporting legs respectively. When the supporting legs are unfolded to the same horizontal plane with the bottoms of the fixing pipes, the connecting rods are in a horizontal state. During carrying, the supporting legs can be folded by upwards moving the movable sleeves, and transportation is convenient; the connecting rods are matched with the supporting legs to resist top pressure, the supporting legs and the fixing pipes support together, high stability is achieved, and flexibility and stability are both considered.

Description

Technical Field

[0001] The utility model relates to the technical field of underground engineering construction auxiliary equipment, in particular to a recyclable underground engineering support device. Background Art

[0002] In the field of underground engineering construction, such as subway tunnel excavation, underground parking lot construction, and various underground pipeline laying projects, support structures play a vital role. Traditional support devices are mostly based on the design concept of one-time use, and generally use wood, ordinary steel and precast concrete components. Wood, steel or concrete are selected for use according to different load requirements.

[0003] Traditional support structures have limitations. Disposable wooden or concrete support devices are usually not recyclable after the project is completed, resulting in a huge waste of resources. Although steel has good strength and plasticity, the current support devices mainly made of steel take up a lot of space, are heavy, and are not easy to carry. They cannot take into account both flexibility and stability. Utility Model Content

[0004] The utility model provides a recyclable underground engineering support device, which has both flexibility for convenient transportation and stability for easy support.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A recyclable underground engineering support device comprises a fixed tube and a telescopic top rod, the lower end of the telescopic top rod is threadedly connected to the upper end of the fixed tube, the upper end of the telescopic top rod is fixedly mounted with a top plate, the fixed tube is fixedly sleeved with a fixed seat, the left and right ends of the fixed seat are respectively hinged with supporting legs; a movable sleeve is slidably sleeved on the fixed tube, the left and right sides of the movable sleeve are respectively hinged with connecting rods, and the ends of the connecting rods on both sides away from the movable sleeve are respectively hinged with the supporting legs; when the bottom of the supporting leg is unfolded to the same horizontal plane as the bottom of the fixed tube, the connecting rod is in a horizontal state.

[0007] Furthermore, the top of the fixed tube is rotatably connected to a rotating tube, and the rotating tube can rotate along the circumference of the fixed tube; the interior of the fixed tube is a smooth tube wall, a first internal thread is provided in the rotating tube, and a first external thread is provided at the lower end of the push rod, and the first internal thread is meshed with the first external thread; an annular T-shaped protrusion is provided at the lower end of the rotating tube, and an annular T-shaped groove is provided at the upper end of the fixed tube, and the T-shaped protrusion is clamped in the T-shaped groove.

[0008] Furthermore, the lower ends of the fixing tube and the supporting legs are both provided with pads with rough surfaces.

[0009] Preferably, a limit block is installed at the bottom of the fixed tube, and when the legs are unfolded to the same horizontal plane as the bottom of the legs and the bottom of the fixed tube, the bottom of the movable sleeve abuts against the limit block.

[0010] Furthermore, it also includes a first connecting rod, a second connecting rod, a hoop and an adjusting tube; the hoop is a fixing part having a transverse through hole and a vertical through hole, and is locked by bolts; the hoop is sleeved on the fixing tube through the vertical through hole, the first connecting rod horizontally passes through the transverse through hole of the hoop, the right end of the first connecting rod is provided with a second external thread, the adjusting tube is provided with a second internal thread, and the right end of the first connecting rod is threadedly connected to the left end of the adjusting tube; the second connecting rod is connected to another fixing tube through another hoop, and the left end of the second connecting rod is rotatably connected to the right end of the adjusting tube, and the direction of the rotatable connection is circumferential rotation along the adjusting tube.

[0011] Furthermore, an annular groove is arranged at the left end of the second connecting rod, and an annular protrusion is arranged at the right end of the adjusting cylinder, and the annular protrusion is clamped in the annular groove.

[0012] Furthermore, a first adjusting handle is fixedly mounted on the rotating tube.

[0013] Furthermore, a second adjusting handle is installed on the adjusting cylinder.

[0014] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0015] The legs and fixed tubes of the utility model are supporting elements. The legs support together with the fixed tube after being opened. A movable sleeve is slidably sleeved on the fixed tube, and the connecting rods hinged on the movable sleeve are respectively hinged to the legs, so that the legs are not completely fixed and can be unfolded when the supporting work is completed. When carrying, the legs can be folded by moving the movable sleeve upwards to facilitate transportation. In the supporting state, the utility model has to resist the pressure from the top, which will force the legs to unfold outward, and the unfolding of the legs is limited by the connecting rod. When the legs are unfolded to the same horizontal plane as the bottom of the legs and the bottom of the fixed tube, the connecting rod is in a horizontal state, and the legs can no longer be unfolded to a greater angle. The connecting rod cooperates with the legs to resist the pressure from the top, and the legs and the fixed tube support together to achieve higher stability, taking into account flexibility and stability. The utility model can be folded after use for easy transportation, and then used again in the next project to achieve the purpose of recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a single structural diagram of the utility model.

[0017] Figure 2 for Figure 1 A is an enlarged view of the

[0018] Figure 3This is a structural diagram of the combined use of two fixed pipes of the utility model.

[0019] Figure 4 This is a cross-sectional view of the adjustment cylinder.

[0020] The meanings of the numbers in the figure are: 1-fixed tube, 2-telescopic top rod, 3-fixed seat, 4-leg, 5-movable sleeve, 6-connecting rod, 7-foot, 8-top plate, 9-rotating cylinder, 10-T-shaped protrusion, 11-T-shaped groove, 12-first adjusting handle, 13-hoop, 14-first connecting rod, 15-second connecting rod, 16-adjusting cylinder, 17-second adjusting handle, 18-second external thread, 19-second internal thread, 20-annular protrusion, 21-annular groove. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the accompanying drawings in the embodiments of the utility model, so as to have a further understanding of the concept of the utility model, the technical problems solved, the technical features constituting the technical solutions and the technical effects brought about.

[0022] like Figure 1 As shown, a recyclable underground engineering support device includes a fixed pipe 1 and a telescopic top rod 2, the lower end of the telescopic top rod 2 is threadedly connected to the upper end of the fixed pipe 1, and the upper end of the telescopic top rod 2 is fixedly connected to a top plate 8. A fixed seat 3 is fixedly sleeved on the fixed pipe 1, and the left and right ends of the fixed seat 3 are respectively hinged with supporting legs 4. A movable sleeve 5 is slidably sleeved on the fixed pipe 1, and connecting rods 6 are respectively hinged on the left and right sides of the movable sleeve 5, and the ends of the connecting rods 6 on both sides away from the movable sleeve 5 are respectively hinged with the supporting legs 4. When the bottom of the supporting leg 4 is unfolded to the same horizontal plane as the bottom of the fixed pipe 1, the connecting rod 6 is in a horizontal state.

[0023] The threaded connection between the lower end of the telescopic top rod 2 and the upper end of the fixed tube 1 is a conventional setting of the support structure. By rotating the telescopic top rod 2 or the fixed tube 1, the overall length of the fixed tube 1 and the telescopic top rod 2 can be adjusted, thereby supporting objects to be supported at different heights. The main improvements of the utility model are the legs 4, the movable sleeve 5 and the connecting rod 6. Two legs 4 of equal length are respectively arranged on both sides of the fixed tube 1, and are respectively hinged on the movable sleeve 5 through a connecting rod 6. When the legs 4 are unfolded to the same horizontal plane as the bottom of the legs 4 and the bottom of the fixed tube 1, the connecting rod 6 is in a horizontal state. The unfolding of the legs 4 is not affected within a certain angle, and can only be unfolded to the horizontal state of the connecting rod 6, and cannot be unfolded any further. At this time, the lower end of the legs 4 is in the same horizontal plane as the lower end of the fixed tube 1. During the supporting process, the legs 4 and the fixed tube 1 can jointly withstand the pressure from the upper end of the telescopic top rod 2, so that the supporting process of the utility model achieves a higher stability. Moreover, the legs 4 can be folded inwardly, so that during transportation, the utility model in the folded state occupies less space and is easy to carry, so the utility model takes into account flexibility and stability. The utility model can be folded after use, which is convenient for transportation and can be used again in the next project to achieve the purpose of recycling.

[0024] like Figure 2 As shown, further, the top of the fixed tube 1 is rotatably connected with a rotating tube, and the rotating tube can rotate along the circumference of the fixed tube 1; the interior of the fixed tube 1 is a smooth tube wall, and a first internal thread is provided in the rotating tube, and a first external thread is provided at the lower end of the mandrel, and the first internal thread is meshed with the first external thread. An annular T-shaped protrusion 10 is provided at the lower end of the rotating tube, and an annular T-shaped groove 11 is provided at the upper end of the fixed tube 1, and the T-shaped protrusion 10 is clamped in the T-shaped groove 11. After the rotating tube is installed, when adjusting the overall height of the fixed tube 1 and the telescopic mandrel 2, only the rotating tube can be rotated for adjustment.

[0025] Furthermore, the lower ends of the fixing tube 1 and the legs 4 are both provided with feet 7 with rough surfaces. The feet 7 are provided at the lower ends of the fixing tube 1 and the legs 4 to prevent relative sliding of the utility model by increasing the friction between the fixing tube 1 and the legs 4, thereby improving stability.

[0026] Preferably, a limit block is installed at the bottom of the fixed tube 1, and when the legs 4 are unfolded to the same horizontal plane as the bottom of the fixed tube 1, the bottom of the movable sleeve 5 abuts against the limit block. Installing the limit block can prevent the movable sleeve 5 from sliding out of the fixed tube 1.

[0027] like Figure 3As shown, further, it also includes a first connecting rod 14, a second connecting rod 15, a hoop 13 and an adjusting tube 16; the hoop 13 is a fixing member having a transverse through hole and a vertical through hole, and is locked by bolts; the hoop 13 is sleeved on the fixed tube 1 through the vertical through hole, the first connecting rod 14 horizontally passes through the transverse through hole of the hoop 13, the right end of the first connecting rod 14 is provided with a second external thread 18, the adjusting tube 16 is provided with a second internal thread 19, and the right end of the first connecting rod 14 is threadedly connected to the left end of the adjusting tube 16; the second connecting rod 15 is connected to another fixed tube 1 through another hoop 13, and the left end of the second connecting rod 15 is rotatably connected to the right end of the adjusting tube 16, and the direction of the rotational connection is circumferential rotation along the adjusting tube 16.

[0028] A single fixed tube 1 and telescopic top rod 2 can only support one point of the object to be supported, and in special environments, such as when the ground is uneven or tilted, there is a risk of a single fixed tube 1 and telescopic top rod 2 falling over. The first connecting rod 14 is locked on the fixed tube 1 through a hoop 13 and a bolt, and the second connecting rod 15 is locked on another fixed tube 1 through a hoop 13 and a bolt. After the first connecting rod 14 and the second connecting rod 15 are connected through an adjustment tube 16, the two fixed tubes 1 and telescopic top rod 2 are connected through the first connecting rod 14 and the second connecting rod 15 to support the object to be supported together, and a single fixed tube 1 and telescopic top rod 2 are not easily affected by the terrain and fall over.

[0029] like Figure 4 As shown, further, an annular groove 21 is provided at the left end of the second connecting rod 15, and an annular protrusion 20 is provided at the right end of the adjusting cylinder 16, and the annular protrusion 20 is clamped in the annular groove 21. The above structure is a specific connection method between the second connecting rod 15 and the adjusting cylinder 16. After the adjusting cylinder 16 is provided, the distance between the two fixed pipes 1 can be adjusted without rotating the first connecting rod 14 and the second connecting rod 15, so that the adjustment process of the distance between the fixed pipes 1 can be more stable.

[0030] Further, the rotating tube is fixedly mounted with a first adjustment handle 12, and the adjusting cylinder 16 is mounted with a second adjustment handle 17. The first adjustment handle 12 and the second adjustment handle 17 are installed to facilitate the operator to exert force during the adjustment of the rotating tube and the adjusting cylinder 16.

[0031] The words “connection” and “fixation” appearing in the description of the present invention may refer to fixed connection, processing and forming, welding, or mechanical connection. The specific meanings of the above terms in the present invention shall be understood according to the specific circumstances.

[0032] In the description of the present invention, the terms "center", "upper", "lower", "horizontal", "inner", "outer", etc., which indicate the orientation or position relationship, are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying a specific orientation that the device or element referred to must have, and therefore cannot be understood as a limitation on the present invention.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A recyclable underground engineering support device, comprising a fixed pipe (1) and a telescopic top rod (2), wherein the lower end of the telescopic top rod (2) is threadedly connected to the upper end of the fixed pipe (1), and a top plate (8) is fixedly mounted on the upper end of the telescopic top rod (2), characterized in that: A fixing seat (3) is fixedly sleeved on the fixing tube (1), and legs (4) are hingedly connected to the left and right ends of the fixing seat (3); a movable sleeve (5) is slidably sleeved on the fixing tube (1), and connecting rods (6) are hingedly connected to the left and right sides of the movable sleeve (5), and the ends of the connecting rods (6) on both sides away from the movable sleeve (5) are hingedly connected to the legs (4); when the bottom of the leg (4) is unfolded to the same horizontal plane as the bottom of the fixing tube (1), the connecting rod (6) is in a horizontal state.

2. A recyclable underground engineering support device according to claim 1, characterized in that: The top of the fixed tube (1) is rotatably connected to a rotating tube, and the rotating tube can rotate along the circumference of the fixed tube (1); the interior of the fixed tube (1) is a smooth tube wall, a first internal thread is provided inside the rotating tube, and a first external thread is provided at the lower end of the push rod, and the first internal thread is meshed with the first external thread; an annular T-shaped protrusion (10) is provided at the lower end of the rotating tube, and an annular T-shaped groove (11) is provided at the upper end of the fixed tube (1), and the T-shaped protrusion (10) is clamped in the T-shaped groove (11).

3. A recyclable underground engineering support device according to claim 1, characterized in that: The lower ends of the fixed tube (1) and the supporting legs (4) are both provided with pads (7) with rough surfaces.

4. The recyclable underground engineering support device according to claim 1, characterized in that: A limit block is installed at the bottom of the fixed tube (1), and when the legs (4) are unfolded to the point where the bottom of the legs (4) and the bottom of the fixed tube (1) are on the same horizontal plane, the bottom of the movable sleeve (5) abuts against the limit block.

5. The recyclable underground engineering support device according to claim 1, characterized in that: It also comprises a first connecting rod (14), a second connecting rod (15), a hoop (13) and an adjusting tube (16); the hoop (13) is a fixing member having a transverse through hole and a vertical through hole and being locked by a bolt; the hoop (13) is sleeved on the fixing tube (1) through the vertical through hole, the first connecting rod (14) passes horizontally through the transverse through hole of the hoop (13), the right end of the first connecting rod (14) is provided with a second external thread (18), the adjusting tube (16) is provided with a second internal thread (19), and the right end of the first connecting rod (14) is threadedly connected to the left end of the adjusting tube (16); the second connecting rod (15) is connected to another fixing tube (1) through another hoop (13), the left end of the second connecting rod (15) is rotatably connected to the right end of the adjusting tube (16), and the direction of the rotatable connection is circumferential rotation along the adjusting tube (16).

6. A recyclable underground engineering support device according to claim 5, characterized in that: The left end of the second connecting rod (15) is provided with an annular groove (21), and the right end of the adjustment cylinder (16) is provided with an annular protrusion (20), and the annular protrusion (20) is clamped in the annular groove (21).

7. The recyclable underground engineering support device according to claim 2, characterized in that: A first adjustment handle (12) is fixedly mounted on the rotating tube.

8. The recyclable underground engineering support device according to claim 5, characterized in that: A second adjustment handle (17) is mounted on the adjustment cylinder (16).

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