Flexible protective sleeve device for improving recovery rate of H-shaped steel of equal-thickness cement-soil wall

Abstract

The utility model discloses a flexible protective sleeve device for improving the recovery rate of H-shaped steel of an equal-thickness cement-soil wall, and relates to the field of pile loading and unloading equipment. The flexible protective sleeve device for improving the recovery rate of the H-shaped steel of the equal-thickness cement-soil wall comprises a flexible protective sleeve body capable of being arranged on the H-shaped steel in a sleeving mode, a hard fixed protective base and a hard plastic blade foot connected to the bottom end of the hard fixed protective base. An H-shaped protection fixing clamping groove used for clamping the bottom of H-shaped steel is formed in the top of the hard fixing protection base, and the bottom of the flexible protection sleeve body is connected to the top of the hard fixing protection base. According to the flexible protective sleeve device for improving the recovery rate of the H-shaped steel of the equal-thickness cement-soil wall, the influence of insertion and recovery of the H-shaped steel into the equal-thickness cement-soil wall can be reduced, and the purpose of improving the quality of the recovered H-shaped steel is achieved.

Description

Technical Field

[0001] This application relates to the field of pile handling equipment, and more particularly, to a flexible protective sleeve device for improving the recovery rate of H-shaped steel in equal-thickness cement-soil walls. Background Art

[0002] The equal-thickness cement-soil wall support structure has attracted much attention for its advantages such as strong applicability, low enclosure cost, short construction period, and environmental friendliness. It also has the advantages of no noise, small vibration, little impact on the surrounding environment, and low project cost during construction, and has certain popularization value in foundation pit support construction. It has strong applicability in hard soil layers such as gravel soil and clay rock, and is especially suitable for the water-stop curtain in the ultra-deep water-rich area reserved for the planned subway shield section.

[0003] The extraction and recycling of H-shaped steel is a major advantage of the equal-thickness cement-soil wall support structure. After the underground main structure is completed and the support mission is over, the H-shaped steel can be extracted from the mixing pile using a jacking device for recycling, and then can be reused after shaping and maintenance. However, during the extraction and recycling process, the construction efficiency and recycling efficiency are often affected by the following reasons: First, the uneven thickness of the traditional release agent coating, excessive adhesion to the cement soil, and large friction force cause the H-shaped steel to be unable to be recycled or difficult to recycle. Second, the deformation of the H-shaped steel due to torque increases the friction force, resulting in difficult recycling. Third, some H-shaped steels are not firmly welded, and the pulling force during extraction is too large, resulting in breakpoints, etc.

[0004] Therefore, a device is needed to improve the recovery rate of H-shaped steel in equal-thickness cement-soil walls to meet the construction requirements. Summary of the Utility Model

[0005] The purpose of this application is to provide a flexible protective sleeve device for improving the recovery rate of H-shaped steel in equal-thickness cement-soil walls, which can reduce the influence of inserting and recycling the H-shaped steel in the equal-thickness cement-soil wall and achieve the purpose of improving the quality of the recycled H-shaped steel.

[0006] This application is implemented as follows:

[0007] This application provides a flexible protective sleeve device for improving the recovery rate of H-shaped steel in equal-thickness cement-soil walls, which includes a flexible protective sleeve main body that can be sleeved on the H-shaped steel, a rigid fixed protective seat, and a rigid plastic cutting edge connected to the bottom end of the rigid fixed protective seat; the top of the rigid fixed protective seat is provided with an H-shaped protective fixed card slot for clamping the bottom of the H-shaped steel, and the bottom of the flexible protective sleeve main body is connected to the top of the rigid fixed protective seat.

[0008] In some alternative embodiments, the rigid plastic cutting edge includes two end cutting edges with a triangular cross-section and a connecting cutting edge with a triangular cross-section. The two ends of the connecting cutting edge are respectively connected to the middle parts of the two end cutting edges, and the ends of the connecting cutting edge and the end cutting edges connected to the rigid fixed protective seat are the bottom ends with a triangular cross-section.

[0009] In some alternative embodiments, the flexible protective sleeve body is composed of a graphite coating, a fiber fabric layer, and a polymer layer arranged in sequence from the inside to the outside.

[0010] In some alternative embodiments, an opening is provided on the flexible protective sleeve body, and a rubber zipper strip is provided at the opening. The rubber zipper strip is connected to a zipper, and the zipper is used to move along the rubber zipper strip to open and close the opening.

[0011] In some alternative embodiments, the bottom of the rubber zipper strip is connected to the protective fixing card slot, and the zipper is arranged above the protective fixing card slot.

[0012] In some alternative embodiments, a plurality of anti-pulling convex ribs are formed by the convexity of the outer wall of the rigid fixing protective seat.

[0013] In some alternative embodiments, blade foot convex ribs connected to the anti-pulling convex ribs are provided on the outer wall of the rigid plastic blade foot.

[0014] In some alternative embodiments, a buffer layer filled between the H-shaped steel and the flexible protective sleeve body is further included.

[0015] The beneficial effects of the present application are as follows: The flexible protective sleeve device for improving the recovery rate of H-shaped steel in equal-thickness cement soil walls provided by the present application includes a flexible protective sleeve body that can be sleeved on the H-shaped steel, a rigid fixing protective seat, and a rigid plastic blade foot connected to the bottom end of the rigid fixing protective seat; a protective fixing card slot in the shape of an H for clamping the bottom of the H-shaped steel is provided at the top of the rigid fixing protective seat, and the bottom of the flexible protective sleeve body is connected to the top of the rigid fixing protective seat. The flexible protective sleeve device for improving the recovery rate of H-shaped steel in equal-thickness cement soil walls provided by the present application can reduce the influence of inserting and recovering the H-shaped steel into the equal-thickness cement soil wall, and achieve the purpose of improving the quality of the recovered H-shaped steel. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is a schematic structural diagram of the first use state of the flexible protective sleeve device for improving the recovery rate of H-shaped steel in equal-thickness cement soil walls provided in Embodiment 1 of the present application;

[0018] Figure 2 It is a schematic structural diagram of the second use state of the flexible protective sleeve device for improving the recovery rate of H-shaped steel in equal-thickness cement soil walls provided in Embodiment 1 of the present application;

[0019] Figure 3 Structural schematic diagram of the first use state of the flexible protective sleeve device for improving the recovery rate of H-shaped steel in an equal-thickness cement soil wall, connecting the H-shaped steel inserted into the equal-thickness cement soil wall;

[0020] Figure 4 Structural schematic diagram of the second use state of the flexible protective sleeve device for improving the recovery rate of H-shaped steel in an equal-thickness cement soil wall, connecting the H-shaped steel inserted into the equal-thickness cement soil wall;

[0021] Figure 5 Structural schematic diagram of the flexible protective sleeve device for improving the recovery rate of H-shaped steel in an equal-thickness cement soil wall provided in Embodiment 2 of the present application.

[0022] In the figure: 100, H-shaped steel; 110, flexible protective sleeve main body; 111, graphite coating; 112, fiber fabric layer; 113, polymer layer; 114, opening; 115, rubber zipper chain; 116, zipper; 120, rigid fixed protective seat; 130, rigid plastic cutting edge; 131, end cutting edge; 132, connecting cutting edge; 140, protective fixed card slot; 150, anti-pulling convex rib; 160, cutting edge convex rib; 200, equal-thickness cement soil wall. Detailed implementation manners

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. Usually, the components of the embodiments of the present application described and illustrated herein can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application claimed, but merely represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0025] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0026] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is usually placed when in use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In addition, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0027] In addition, terms such as "horizontal", "vertical", "hanging" do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0028] In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0029] In the present application, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature can include the first and second features being in direct contact, or can include the first and second features not being in direct contact but being in contact through other features between them. Moreover, the first feature being "above", "over", and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher horizontal level than the second feature. The first feature being "below", "beneath", and "under" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature is at a lower horizontal level than the second feature.

[0030] The features and performance of the flexible protective sleeve device for improving the recovery rate of H-shaped steel in equal-thickness cement soil walls of the present application will be further described in detail below in conjunction with embodiments.

[0031] Embodiment 1

[0032] Such as Figure 1 、 Figure 2 、 Figure 3 And Figure 4As shown in the figure, an embodiment of the present application provides a flexible protective sleeve device for improving the recovery rate of H-shaped steel in an equal-thickness cement soil wall, which includes a flexible protective sleeve body 110 that can be sleeved on the H-shaped steel 100, a rigid fixed protective seat 120, and a rigid plastic blade foot 130 connected to the bottom end of the rigid fixed protective seat 120. The rigid fixed protective seat 120 and the rigid plastic blade foot 130 are connected into an integral body;

[0033] Among them, the flexible protective sleeve body 110 is composed of a graphite coating 111, a fiber fabric layer 112, and a polymer layer 113 arranged in sequence from the inside to the outside. An opening 114 and a rubber zipper chain 115 provided at the opening 114 are provided on the flexible protective sleeve body 110. The rubber zipper chain 115 is connected with a zipper 116, and the zipper 116 is used to move along the rubber zipper chain 115 to open and close the opening 114. In this embodiment, the polymer layer is a rubber layer.

[0034] The top of the rigid fixed protective seat 120 is provided with an H-shaped protective fixed clamping groove 140 for clamping the bottom of the H-shaped steel 100. The bottom of the flexible protective sleeve body 110 is connected to the inner wall of the protective fixed clamping groove 140 at the top of the rigid fixed protective seat 120. The bottom of the rubber zipper chain 115 is connected to the inner wall of the protective fixed clamping groove 140, and the zipper 116 is arranged above the protective fixed clamping groove 140;

[0035] The rigid plastic blade foot 130 includes two end blade feet 131 with a triangular cross-section and a connecting blade foot 132 with a triangular cross-section. The two ends of the connecting blade foot 132 are respectively connected to the middle parts of the two end blade feet 131. The end where the connecting blade foot 132 and the end blade foot 131 are connected to the rigid fixed protective seat 120 is the bottom end of the triangular cross-section.

[0036] When the flexible protective sleeve device for improving the recovery rate of H-shaped steel in the equal-thickness cement soil wall provided by the embodiment of the present application is in use, first, construct the equal-thickness cement soil wall 200, and position the H-shaped steel 100 before construction before the cement soil of the equal-thickness cement soil wall 200 has finally set; then connect the bottom of the flexible protective sleeve main body 110 to the inner wall of the protective fixing groove 140 at the top of the rigid fixing protective seat 120, move the zip fastener 116 along the rubber zip fastener strip 115 to above the protective fixing groove 140 to open the opening 114 and unfold the flexible protective sleeve main body 110, lift the H-shaped steel 100 and pass it through the flexible protective sleeve main body 110, and then the bottom is clamped in the protective fixing groove 140 at the top of the rigid fixing protective seat 120. Subsequently, lift the H-shaped steel 100, the flexible protective sleeve main body 110 and the rigid fixing protective seat 120 and insert them into the construction of the equal-thickness cement soil wall 200, so that the rigid plastic cutting edge 130 provided at the bottom of the rigid fixing protective seat 120 cuts the soil and inserts into the equal-thickness cement soil wall 200. As the depth of the rigid plastic cutting edge 130 inserted into the equal-thickness cement soil wall 200 increases, move the zip fastener 116 upward along the rubber zip fastener strip 115 to close the opening 114, so that the flexible protective sleeve main body 110 is closed and sleeved outside the H-shaped steel 100 for protection until the H-shaped steel 100 is inserted to the designed elevation and depth of the equal-thickness cement soil wall 200, and the zip fastener 116 is pulled to the top of the rubber zip fastener strip 115 and fixed, and the construction is completed.

[0037] The flexible protective sleeve device for improving the recovery rate of H-shaped steel in the equal-thickness cement soil wall provided by the embodiment of the present application clamps the bottom of the H-shaped steel 100 by providing a protective fixing groove 140 at the top of the rigid fixing protective seat 120, and sets a flexible protective sleeve main body 110 connected to the inner wall of the protective fixing groove 140 to wrap the outer wall of the H-shaped steel 100 to isolate the cement soil of the equal-thickness cement soil wall 200. The graphite coating 111 provided on the inner wall of the flexible protective sleeve main body 110 provides certain lubrication and compressive properties, and the polymer layer 113 provided on the outer wall of the flexible protective sleeve main body 110 can ensure the transmission of the mechanical action of the H-shaped steel 100 and greatly reduce the viscous action and friction force of the cement soil when the H-shaped steel 100 is recovered, and will not damage the structure of the cement mixing pile wall. It can abandon the complicated process of brushing traditional anti-friction agents, the construction is simple and reliable, the maintenance times of the H-shaped steel are reduced, and the purpose of improving the construction efficiency is achieved.

[0038] Among them, by providing an opening 114 on the flexible protective sleeve body 110, a rubber drawstring 115 provided at the opening 114, and a zipper 116 connected to the rubber drawstring 115, the zipper 116 is used to move along the rubber drawstring 115 to open and close the opening 114, which can facilitate the construction personnel to unfold the flexible protective sleeve body 110 and connect it to the inner wall of the protective fixing slot 140 and allow the H-shaped steel 100 to pass through. At the same time, it is convenient to connect the flexible protective sleeve body 110 to form a ring and sleeved on the H-shaped steel 100 for comprehensive protection; the hard plastic cutting edge 130 is in an H shape and is formed by connecting two end cutting edges 131 with a triangular cross-section and a connecting cutting edge 132 with a triangular cross-section, which can ensure that the H-shaped hard plastic cutting edge 130 is adapted to the H-shaped steel 100 and stably separates the cement soil and inserts it downward into the equal-thickness cement soil wall 200.

[0039] Embodiment 2

[0040] As Figure 5 shown, the embodiment of the present application provides a flexible protective sleeve device for improving the recovery rate of H-shaped steel in an equal-thickness cement soil wall, which has substantially the same structure as the flexible protective sleeve device for improving the recovery rate of H-shaped steel in an equal-thickness cement soil wall provided in Embodiment 1. The difference is that anti-pulling convex ribs 150 are arranged at intervals on the outer wall of the hard fixed protective seat 120, and cutting edge convex ribs 160 are arranged at intervals on the outer wall of the hard plastic cutting edge 130 and are connected to the anti-pulling convex ribs 150.

[0041] The flexible protective sleeve device for improving the recovery rate of H-shaped steel in an equal-thickness cement soil wall provided in the embodiment of the present application forms anti-pulling convex ribs 150 on the outer wall of the hard fixed protective seat 120, and cutting edge convex ribs 160 connected to the anti-pulling convex ribs 150 are provided on the outer wall of the hard plastic cutting edge 130, which can improve the connection stability between the hard fixed protective seat 120 and the cutting edge convex ribs 160 and the equal-thickness cement soil wall 200 by using the anti-pulling convex ribs 150 and the cutting edge convex ribs 160, and facilitate pulling out the H-shaped steel 100 from the hard fixed protective seat 120 for separation.

[0042] In other optional embodiments, a buffer layer made of rubber can also be filled between the H-shaped steel 100 and the flexible protective sleeve body 110. By using the buffer layer, the friction between the H-shaped steel 100 and the flexible protective sleeve body 110 is increased to ensure the transmission of the mechanical action of the H-shaped steel 100, and the H-shaped steel 100 is further protected by the buffer layer.

[0043] The embodiments described above are some embodiments of the present application, rather than all embodiments. The detailed description of the embodiments of the present application is not intended to limit the scope of the present application claimed, but merely represents the selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the scope of protection of the present application.

Claims

1. A flexible protective sleeve device for improving the recovery rate of H-shaped steel in equal-thickness cement soil walls, characterized in that, It includes a flexible protective sleeve body that can be sleeved on the H-shaped steel, a rigid fixed protective seat, and a rigid plastic blade foot connected to the bottom end of the rigid fixed protective seat; a protective fixed clamping groove in the shape of an H for clamping the bottom of the H-shaped steel is provided at the top of the rigid fixed protective seat, and the bottom of the flexible protective sleeve body is connected to the top of the rigid fixed protective seat.

2. The flexible protective sleeve device for improving the recovery rate of H-shaped steel in equal-thickness cement soil walls as claimed in claim 1, wherein The rigid plastic blade foot includes two end blade feet with a triangular cross-section and a connecting blade foot with a triangular cross-section. The two ends of the connecting blade foot are respectively connected to the middle parts of the two end blade feet. One end of the connecting blade foot and the end blade foot connected to the rigid fixed protective seat is the bottom end of the triangular cross-section.

3. The flexible protective sleeve device for improving the recovery rate of H-shaped steel in an equal-thickness cement soil wall as claimed in claim 1, wherein, The flexible protective sleeve body is composed of a graphite coating, a fiber fabric layer, and a polymer layer arranged in sequence from the inside to the outside.

4. The flexible protective sleeve device for improving the recovery rate of H-shaped steel in an equal-thickness cement soil wall, characterized in that, An opening is provided on the flexible protective sleeve body, and a rubber zipper chain is provided at the opening. The rubber zipper chain is connected with a zipper, and the zipper is used to move along the rubber zipper chain to open and close the opening.

5. The flexible protective sleeve device for improving the recovery rate of H-shaped steel in the equal-thickness cement soil wall, as claimed in claim 4, is characterized in that The bottom of the rubber zipper chain is connected to the protective fixed clamping groove, and the zipper is arranged above the protective fixed clamping groove.

6. The flexible protective sleeve device for improving the recovery rate of H-shaped steel in the equal-thickness cement soil wall, as claimed in claim 1, is characterized in that Multiple anti-pulling convex ribs are formed by the convexity of the outer wall of the rigid fixed protective seat.

7. The flexible protective sleeve device for improving the recovery rate of H-shaped steel in equal-thickness cement soil walls according to claim 6, characterized in that, Blade foot convex ribs connected to the anti-pulling convex ribs are provided on the outer wall of the rigid plastic blade foot.

8. The flexible protective sleeve device for improving the recovery rate of H-shaped steel in an equal-thickness cement soil wall, characterized in that, It also includes a buffer layer filled between the H-shaped steel and the flexible protective sleeve body.

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