Well point pipe drawing device

Abstract

The utility model relates to a well point pipe drawing device which comprises a movable sleeve, two movable arms and a rope. The movable sleeve comprises two semicircular pipe pieces, and one ends of the two semicircular pipe pieces are hinged to form a structure capable of being opened and closed; the middles of the two movable arms are connected through a pin shaft and can rotate relative to each other, the bottoms of the two movable arms are connected with the two semicircular pipe pieces respectively, and the two semicircular pipe pieces can be opened and closed by rotating the two movable arms; and a rope is connected with the tops of the two movable arms. When the device is specifically used, the movable sleeve is arranged on a well point pipe in a sleeving mode, a crowbar is used for picking up the rope and erecting the rope on the door-shaped fulcrum, the upper portions of the two movable arms are close to each other under the action of gravity, so that the two semicircular pipe pieces are driven to be closed, the well point pipe is tightly clamped, then the crowbar is lifted upwards, the well point pipe can be lifted at a time, and the well point pipe is lifted. And the well point pipe can be easily pulled out after being lifted for multiple times.

Description

Technical Field

[0001] The utility model belongs to the technical field of foundation pit dewatering, and particularly relates to a well point pipe pulling device. Background Technique

[0002] Light well point dewatering is a construction method for foundation pit dewatering. Well point pipes are arranged at certain intervals along the periphery of the foundation pit. The bottom of the well point pipe is provided with a filter pipe inserted into the permeable layer, and the upper part is connected to a flexible hose and a water collecting main pipe. The water collecting main pipe is a Φ150 steel pipe, and Φ40 water suction pipe orifices with the same spacing as the well point pipes are arranged all around. Then, the water in the water collecting pipe is pumped out by a vacuum water pump, so as to achieve the effect of lowering the groundwater level around the foundation pit and ensure the dryness of the foundation base without water.

[0003] The general insertion depth of the well point pipe is 4m - 6m. After the dewatering is completed, the well point pipe needs to be pulled out. Due to the long-term foundation pit excavation and dewatering, affected by soil displacement and soil layers, the well point pipe is tightly adsorbed. At present, workers pull out the pipe manually, which is inconvenient to hold the well point pipe and apply force, and it is very difficult to pull out the well point pipe. Content of the Utility Model

[0004] The main purpose of the utility model is to propose a well point pipe pulling device, which can effectively solve the problems in the background technique.

[0005] To achieve the above purposes, the utility model is realized through the following technical solutions:

[0006] A well point pipe pulling device, comprising

[0007] A movable sleeve, the movable sleeve includes two semi-circular pipe segments, and one end of the two semi-circular pipe segments is hinged to form a structure that can be opened and closed;

[0008] Two movable arms, connected by a pin shaft in the middle and can rotate relative to each other. The bottoms of the two movable arms are respectively connected to the two semi-circular pipe segments;

[0009] A rope, connecting the tops of the two movable arms.

[0010] Preferably, the two semi-circular pipe segments are hinged by a hinge.

[0011] Preferably, ear plates are fixed on the outer sides of the two semi-circular pipe segments, and the two ear plates are respectively connected to the bottoms of the two movable arms through connecting rods.

[0012] Preferably, the diameter of the movable sleeve is slightly smaller than the diameter of the well point pipe.

[0013] Preferably, anti-slip pads are provided on the inner walls of the two semi-circular pipe segments.

[0014] Preferably, the movable arm is a long strip-shaped steel plate.

[0015] The utility model provides a well point pipe pulling-out device, which has the following beneficial effects:

[0016] When the device is specifically used, the movable sleeve is sleeved on the well point pipe, the rope is lifted with a crowbar and placed on the gantry fulcrum. Under the action of gravity, the upper parts of the two movable arms approach each other, thereby driving the two semi-circular pipe segments to close, tightly clamping the well point pipe, and then the crowbar is lifted upward, and the well point pipe can be lifted once. After being lifted multiple times, the well point pipe can be easily pulled out. Description of the Drawings

[0017] Figure 1 is the front view of the well point pipe pulling-out device of the utility model;

[0018] Figure 2 is the side view of the well point pipe pulling-out device of the utility model;

[0019] Figure 3 is the top view of the well point pipe pulling-out device of the utility model;

[0020] Figure 4 is the usage schematic diagram of the well point pipe pulling-out device of the utility model.

[0021] In the figure: 1, movable sleeve; 2, movable arm; 4, pin shaft; 3, rope; 5, hinge; 6, ear plate; 7, connecting rod; 8, well point pipe; 9, gantry fulcrum; 10, crowbar. Detailed Embodiments

[0022] In order to make the purpose, technical solutions and advantages of the utility model clearer, the technical solutions in the utility model will be clearly and completely described below in conjunction with the drawings of the utility model.

[0023] The technical solutions of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are some, but not all, of the embodiments of the utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the utility model without creative efforts shall fall within the protection scope of the utility model.

[0024] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "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 drawings. It 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.

[0025] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically defined. In addition, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] Embodiment

[0027] Referring to Figures 1-4 , a well point pipe pulling device, comprising a movable sleeve 1, two movable arms 2 and a rope 3;

[0028] The movable sleeve 1 includes two semi-circular pipe segments, and one end of the two semi-circular pipe segments is hinged to form a structure that can be opened and closed;

[0029] The middle parts of the two movable arms 2 are connected by a pin shaft 4 to form a scissor shape and can rotate relative to each other. The bottoms of the two movable arms 2 are respectively connected to the two semi-circular pipe segments. By rotating the two movable arms 2, the two semi-circular pipe segments can be opened and closed;

[0030] The rope 3 is connected to the tops of the two movable arms 2.

[0031] To facilitate pulling the rope 3, a portal fulcrum 9 and a crowbar 10 can be set up on-site. When this device is specifically used, the movable sleeve 1 is sleeved on the well point pipe 8. The crowbar 10 is used to lift the rope 3 and place it on the portal fulcrum 9. Under the action of gravity, the upper parts of the two movable arms 2 approach each other, thereby driving the two semi-circular segments to close and tightly clamp the well point pipe 8. Then, the crowbar 10 is lifted upward, and the well point pipe 8 can be lifted once. After multiple lifts, the well point pipe 8 can be easily pulled out.

[0032] Of course, before placing the crowbar 10 on the portal fulcrum 9, the rope 3 can also be wound by rotating the crowbar 10, that is, by shortening the rope 3 to tighten the upper parts of the two movable arms 2, so as to ensure that the two semi-circular segments can further clamp the well point pipe 8.

[0033] It is worth mentioning that when this device is in use, the two semi-circular segments can also be directly clamped on the well point pipe 8 by holding the two movable arms 2 by hand and then lifted and pulled out, but this is more laborious than using the crowbar 10.

[0034] In a specific embodiment, a specific hinged manner of the semi-circular segments is provided. The two semi-circular segments are hingedly connected by a hinge 5.

[0035] In a specific embodiment, a specific connection manner between the bottom of the movable arm 2 and the semi-circular segment is provided. Ear plates 6 are fixed on the outer sides of the two semi-circular segments, and the two ear plates 6 are respectively connected to the bottoms of the two movable arms 2 through connecting rods 7.

[0036] In a specific embodiment, the diameter of the movable sleeve 1 is slightly smaller than the diameter of the well point pipe 8 to ensure that the two semi-circular segments can clamp the well point pipe 8.

[0037] In a specific embodiment, anti-slip pads are provided on the inner walls of the two semi-circular segments to increase the friction between the semi-circular segments and the well point pipe 8.

[0038] In a specific embodiment, the movable arm 2 is a long strip-shaped steel plate.

[0039] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A well point pipe extraction device, characterized in that: including a movable casing, the movable casing includes two semi-circular segments, one end of the two semi-circular segments is hinged to form a structure that can be opened and closed; two movable arms, connected by a pin shaft in the middle and can rotate relative to each other, the bottoms of the two movable arms are respectively connected to the two semi-circular segments; a rope, connecting the tops of the two movable arms.

2. The well point pipe extraction device according to claim 1, characterized in that: The two semi-circular segments are hinged by hinges.

3. The well point pipe pulling device according to claim 1, characterized in that: Lugs are fixed on the outer sides of the two semi-circular segments, and the two lugs are respectively connected to the bottoms of the two movable arms through connecting rods.

4. The well point pipe extraction device according to claim 1, characterized in that: The diameter of the movable casing is slightly smaller than the diameter of the well point pipe.

5. A well point pipe extraction device according to claim 1, characterized in that: Anti-slip pads are provided on the inner walls of the two semi-circular segments.

6. The well point pipe extraction device according to claim 1, characterized in that: The movable arms are strip-shaped steel plates.

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