Counter-force box gravity scraper knife for removing stubborn deposits on joint

Abstract

The utility model relates to the field of underground diaphragm wall brushing construction equipment, in particular to a counter-force box gravity scraper knife used for removing stubborn deposits on a connector, which is an innovation and optimization of a common counter-force box gravity scraper knife and is characterized in that an obtuse triangle scraper knife is welded at the bottom of a counter-force box matched with an underground diaphragm wall I-shaped steel connector, and the counter-force box gravity scraper knife is used for removing stubborn deposits on the connector. Meanwhile, a right-angled triangular scraper knife is welded to the top of the counter-force box, and tool bits of the right-angled triangular scraper knife and the counter-force box are located in the same vertical plane, so that the scraper knife clings to the I-shaped steel joint and keeps vertical when impacting stubborn deposits under the action of gravity. On the basis of an original common counter-force box gravity scraper knife, cost is not increased as much as possible, convenience is not changed as much as possible, and the problems that contact between the common counter-force box gravity scraper knife and a diaphragm wall connector is poor, and the wall scraping effect is poor are solved.

Description

Technical Field

[0001] The utility model relates to the field of diaphragm wall brushing construction equipment, and particularly to a reaction box gravity shovel for removing stubborn accumulated sediments at joints. Background Art

[0002] The diaphragm wall is a main retaining structure commonly used in deep foundation pit projects. After the trench construction of the diaphragm wall is completed, there will inevitably be adherent silt at the joint between an adjacent completed trench section and an uncompleted trench section. If it is not removed in time, the phenomenon of mud inclusion will occur, which will cause water seepage in the diaphragm wall during the excavation of the foundation pit. When using an I-beam joint, measures such as backfilling sandbags are often taken on the outside of the I-shaped steel to block the lateral pressure generated during concrete pouring and prevent the steel reinforcement cage from moving. However, during the concrete pouring process, the flowing cement slurry will fill the voids in the sandbags. At the same time, during the trench construction process, the sedimentation of sand particles will also deposit a lot of stubborn silt in the notch of the I-beam joint at the joint, which is difficult to remove.

[0003] Please refer to Figure 1 , in which Figure 1 is a cross-sectional schematic diagram of a common reaction box gravity shovel in the prior art.

[0004] To ensure the anti-seepage quality of the joint, the prior art first uses a grab bucket scraper to remove the relatively easy-to-treat accumulated sediments. For the truly stubborn and uncleanable accumulated sediments, a reaction box gravity shovel is used, that is, a shovel 3' is directly welded to the bottom of the reaction box 1', and the method of relying on a crane to lift it for gravity impact is used for removal. However, the shovel 3' is a right-angled triangular shovel with the blade facing downwards and is parallel to the I-beam joint, which is prone to problems such as poor contact and wobbling during the descent, resulting in the separation of the tool head from the I-beam joint 5 and poor brushing effect.

[0005] Therefore, there is an urgent need for a reaction box gravity shovel with simple installation, low cost but better effect. Content of the Utility Model

[0006] The technical problem to be solved by the utility model is aimed at the deficiencies of the domestic prior art above. Without increasing the cost and changing the convenience, by welding an obtuse-angled triangular shovel inclined towards the I-beam joint at the bottom of the reaction box, it can be more closely attached to the I-beam joint under the action of gravity, thereby enhancing the removal effect. At the same time, a right-angled triangular shovel is welded to the top of the reaction box to make it closely attached to the I-beam joint, which can effectively prevent the reaction box gravity shovel from tilting in the opposite direction of the joint and play an effect of re-removing.

[0007] To solve the above technical problems, the utility model provides the following technical solutions:

[0008] A reaction box gravity scraper for removing stubborn deposits at joints, comprising: a reaction box matching the diaphragm wall I-beam joint; an obtuse triangle scraper; and a right triangle scraper.

[0009] Preferably, the reaction box matching the diaphragm wall I-beam joint is a cuboid structure.

[0010] Preferably, the obtuse triangle scraper is made of steel.

[0011] Preferably, the obtuse triangle scraper is located at the bottom of the reaction box, and one of its short sides is welded to the reaction box.

[0012] Preferably, the obtuse angle of the obtuse triangle scraper is 100° - 105°, that is, the included angle between one short side and the vertical side of the reaction box is 10° - 15°, and the angle can be changed according to the actual engineering requirements.

[0013] Preferably, the obtuse triangle scraper impacts the stubborn deposits obliquely.

[0014] Preferably, the right triangle scraper is made of steel.

[0015] Preferably, the right triangle scraper is located on one side of the top of the reaction box, one of its right sides is parallel to the top of the reaction box, and the other right side is welded to the reaction box.

[0016] Preferably, the cutter head of the right triangle scraper is perpendicular to the I-beam joint.

[0017] Preferably, the cutter head of the right triangle scraper and the cutter head of the obtuse triangle scraper are in the same vertical plane to keep the reaction box perpendicular downward under the action of gravity.

[0018] The beneficial effects of the present utility model are as follows: First, compared with the ordinary reaction box gravity scraper in the prior art, the cutter head of the obtuse triangle scraper is closer to the I-beam joint, thus enhancing the cleaning effect. And because a right triangle scraper is welded to the top of the reaction box, and its cutter head is in the same vertical plane as the cutter head of the obtuse triangle scraper, it can prevent the reaction box gravity scraper from tipping in the opposite direction of the joint during the impact process and can also achieve the effect of secondary cleaning. Second, the present utility model does not increase the cost on the basis of the ordinary reaction box gravity scraper in the prior art, nor does it change the convenience, thus not violating the original intention of choosing the reaction box gravity scraper. Description of the Drawings

[0019] Figure 1 It is a cross-sectional schematic diagram of an ordinary reaction box gravity scraper in the prior art.

[0020] Figure 1In it, the corresponding relationship between the component names and the reference numerals is as follows: 1': the reaction box that matches the diaphragm wall I-beam joint in the prior art; 3': the bottom scraper of the reaction box in the prior art; 5: the I-beam joint

[0021] Figure 2 This is a schematic diagram of the planar working state of the gravity scraper of the reaction box for removing stubborn deposits at the joint of the present utility model.

[0022] Figure 3 This is a cross-sectional schematic diagram of the gravity scraper of the reaction box for removing stubborn deposits at the joint of the present utility model.

[0023] Figure 4 This is a diagram showing the close situation between the cutter head of the gravity scraper of the reaction box for removing stubborn deposits at the joint of the present utility model and the I-beam joint.

[0024] Figures 2 to 4 In it, the corresponding relationship between the component names and the reference numerals is as follows: 1: the reaction box that matches the diaphragm wall I-beam joint; 2: the right-angled triangular scraper; 3: the obtuse-angled triangular scraper; 4: the steel bar; 5: the I-beam joint; 6: the joint box (lock pipe); 7: the already constructed groove section. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model 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 utility model.

[0027] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "several" means two or more, unless otherwise clearly and specifically defined.

[0029] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail in combination with specific embodiments and drawings. Please refer to Figures 2 to 4 :

[0030] The utility model provides a reaction box gravity scraper for removing stubborn sediment from a joint, such as Figure 2 , during the trenching construction of the ground-connected wall, there will inevitably be silt adhering to the I-beam joint 5 between the adjacent constructed trench section 7 and the unconstructed trench section. In order to prevent water seepage from the underground continuous wall during the excavation of the foundation pit, the silt on the joint must be cleaned. After the grab scraper has cleaned the silt that is easier to fall off, use a crane to lift the reaction box gravity blade used to remove stubborn silt from the joint close to the I-beam joint, and then place a joint box (locking pipe) 6 behind the reaction box gravity blade to resist the reaction box gravity blade, so that it is close to the joint without tilting. Then, let it impact the stubborn silt on the joint under the action of gravity, and repeat several times to achieve the cleaning effect.

[0031] If Figure 3 , a reaction box gravity scraper for clearing stubborn sediment from joints is composed of a reaction box 1 that matches the I-beam joint of the ground-connected wall, a right-angled triangle scraper 2 and an obtuse triangle scraper 3. When installing the scraper, welding is used, wherein the right-angled triangle scraper 2 is relatively small in size and is mainly used to keep the reaction box gravity scraper vertical as a whole and to assist in impacting stubborn sediment; the obtuse triangle scraper 3 plays the main role in clearing stubborn sediment, and the obtuse angle should not be too large to avoid making it difficult to manufacture. When welding, ensure that the blade head of the obtuse triangle scraper 3 is in the same vertical plane as the blade head of the right-angled triangle scraper 2.

[0032] If Figure 4, a reaction box gravity scraper for removing stubborn sediment from joints. When the reaction box gravity scraper impacts the stubborn sediment under the action of gravity, the blade head of the obtuse triangle scraper 3 impacts the stubborn sediment obliquely. Compared with the parallel relationship between the blade head of the ordinary reaction box gravity scraper 3' and the joint, the impact effect on the stubborn sediment is stronger: the right triangle scraper 2 is perpendicular to the I-beam joint 5, which has the effect of clearing again, and the overall scraping effect is better.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A reaction box gravity scraper for removing stubborn sediment from a joint, characterized in that: The invention comprises a reaction box (1) matched with an I-beam joint of a ground-connected wall, a right-angled triangular scraper (2) and an obtuse-angled triangular scraper (3); the right-angled triangular scraper (2) is located at one side of the top of the reaction box (1), one of its right-angled sides is parallel to the top of the reaction box (1), and the other right-angled side is welded to the reaction box (1); the obtuse-angled triangular scraper (3) is located at the bottom of the reaction box (1), one of its short sides is welded to the bottom of the reaction box (1), and the other short side forms an angle of 10° to 15° with the vertical side of the reaction box (1).

2. A reaction box gravity scraper for removing stubborn sediment from a joint according to claim 1, characterized in that: A reaction box (1) matched with the I-beam joint of the ground-connected wall is a rectangular parallelepiped structure.

3. A reaction box gravity scraper for removing stubborn sediment from joints according to claim 1, characterized in that: The right-angled triangular scraper (2) is located on one side of the top of the reaction box (1) matching the I-beam joint of the ground-connected wall, one right-angle side of which is parallel to the top of the reaction box (1), and the side in contact with the I-beam joint is a sharp scraper.

4. A reaction box gravity scraper for removing stubborn sediment from a joint according to claim 1, characterized in that: The obtuse triangle scraper (3) is located at the bottom of the reaction box (1) matching the I-beam joint of the ground-connected wall, one short side of which is connected to the bottom of the reaction box, the other short side forms an angle of 10° to 15° with the vertical side of the reaction box, and the side in contact with the I-beam joint is a sharp scraper.

5. A reaction box gravity scraper for removing stubborn sediment from a joint according to claim 1, characterized in that: The blade head of the right-angled triangle scraper (2) and the blade head of the obtuse-angled triangle scraper (3) are located in the same vertical plane.

6. A reaction box gravity scraper for removing stubborn sediment from a joint according to claim 1, characterized in that: The connection mode of the right-angled triangle scraper (2) and the reaction box (1) is welding, and the connection mode of the obtuse triangle scraper (3) and the reaction box (1) is also welding.

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