CN114960658A - Concrete cut-off wall joint pipe interfacing apparatus - Google Patents

Abstract

The invention relates to a joint pipe butt joint device for a concrete impervious wall, which comprises a plurality of joint pipe bodies, a base and a connecting device, wherein the two joint pipe bodies are connected through the connecting device, and the base is arranged at the bottom of the joint pipe body positioned at the lowest part; the connecting device comprises a connecting chamber and a connecting pin, the connecting chamber is located at two ends of the joint pipe body and embedded in the joint pipe body, and the connecting pin is respectively connected with the connecting chamber of the joint pipe body. Owing to adopted the connected mode of linkage chamber and connecting pin, can realize right fast the connection or the dismantlement of joint pipe body are confirmed according to the deep basal pit degree of depth and are corresponded quantity the joint pipe body is connected, has improved the suitability of joint pipe, and is single moreover the laying and the transportation of joint pipe body are more convenient for the joint pipe of fixed length, through dismantling during the tube drawing, avoid the joint pipe body too high, make the tube drawing operation safer.

Description

A concrete anti-seepage wall joint pipe docking device

technical field

The invention relates to the technical field of building construction, in particular to a joint-pipe docking device for a concrete seepage-proof wall.

Background technique

At present, with the vigorous development of my country's construction market, underground diaphragm walls are more and more widely used as maintenance structures in large-scale deep foundation projects such as subways and housing construction. The underground diaphragm wall is composed of many wall sections. In order to maintain the continuous construction between the wall sections, the joint adopts the joint pipe process, that is, before pouring the concrete in the groove section, a diameter and groove width are pre-inserted at the end of the groove section. For the same joint pipe, after the concrete is initially set, the joint pipe is slowly pulled out by the extubation machine, so that the end of the concrete forms a semi-recessed tenon shape. Then the protruding opening of the reinforcement cage of the lower floor wall is put down and connected, and then concrete is poured to make the two floor walls form a whole.

The above is the traditional construction method, which has certain shortcomings. First, the length of the traditional joint pipe is fixed. When the depth of the deep foundation pit is inconsistent, the joint pipe of appropriate length must be replaced. Moreover, the length of the joint pipe is long, which is very difficult for the placement and transportation of the joint pipe. Both are subject to greater restrictions; secondly, when the tube is pulled out, as the joint tube is pulled up, it is prone to dumping, and there is a certain safety hazard.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is that the length of the traditional joint pipe is fixed. When the depth of the deep foundation pit is inconsistent, the joint pipe of suitable length must be replaced. Moreover, the length of the joint pipe is long, and the placement and transportation of the joint pipe are greatly affected. The second is when the tube is pulled out, as the joint tube is pulled up, it is prone to dumping, and there is a certain safety hazard.

In order to solve the above technical problems, the present invention provides a joint pipe docking device for a concrete seepage wall, which includes a plurality of joint pipe bodies, a base and a connecting device, and the two joint pipe bodies are connected by the connecting device. , the bottom of the joint pipe body located at the bottom is provided with the base; the connecting device includes a connecting chamber and a connecting pin, the connecting chamber is located at both ends of the joint pipe body, and is embedded in the In the joint pipe body, the connecting pins are respectively connected to the connecting chambers of the two joint pipe bodies.

Further, the connecting pin includes a connecting rod, a first end head and a second end head, and the first end head and the second end head are connected by the connecting rod.

Further, the shape of the end face of the first end head is different from the shape of the end face of the second end head.

Further, the shape of the end face of the first end head is a circle, and the shape of the end face of the second end head is a circle formed by cutting two parallel lines tangent to the connecting rod.

Further, the shape of the end face of the first end head is the same as the shape of the end face of the second end head, and is not circular.

Further, the end face shapes of the first end head and the second end head are both circular and formed by cutting two parallel lines tangent to the connecting rod.

Further, the connection chamber has a cavity structure and is provided with an operation port, and the size of the operation port is larger than the outer contour of the connection pin.

Further, corresponding positions of the two connection chambers are provided with through holes matching the shape of the end face of the first end head.

Further, the base is provided with a connecting plate, and the connecting plate is provided with a clamping groove, and the base is buckled with the annular rib of the joint pipe body through the clamping groove and is connected with the joint pipe body. to connect.

Further, the base is provided with a ventilation hole, the ventilation hole is blocked by a shutter, the shutter can be opened and closed outwards, and is kept in a normally closed state by an elastic member.

The above technical solution of the present invention has the following advantages: since a plurality of the joint pipe bodies are connected by the connecting device, the detachability of the joint pipe bodies is realized, especially when a connecting chamber and a connecting pin are used. The connection method can quickly realize the connection or disassembly of the joint pipe body, which improves the convenience.

The corresponding number of the joint pipe bodies can be determined according to the depth of the deep foundation pit for connection, which improves the applicability of the joint pipe, and the placement and transportation of a single joint pipe body is more convenient than the fixed length joint pipe; at the same time; During extubation, along with the extubation process, the drawn joint pipe body can be disassembled one by one, thereby reducing the potential safety hazard caused by the high joint pipe.

Description of drawings

Fig. 1 is the structural representation of a kind of concrete anti-seepage wall joint pipe docking device of the present invention;

Fig. 2 is the A-A sectional schematic diagram of Fig. 1;

FIG. 3 is a three-dimensional schematic diagram of a connecting pin of some embodiments;

FIG. 4 is a three-dimensional schematic diagram of connecting pins of other embodiments;

Fig. 5 is the B-B sectional schematic diagram of Fig. 1;

Fig. 6 is the C-C sectional schematic diagram of Fig. 5;

In the figure: 1. Joint pipe body; 2. Base; 3. Connecting chamber; 4. Connecting pin; 40. Connecting rod; 41. The first end; 42. The second end; through hole; 20, connecting plate; 21, card slot; 10, annular rib plate; 22, ventilation hole; 23, valve; 5, elastic piece.

Detailed ways

The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments. The following examples are intended to illustrate the present invention, but not to limit the scope of the present invention.

In the description of the present invention, it should be understood that the terms "center", "portrait", "horizontal", "top", "bottom", "front", "rear", "left", "right", "vertical" The orientation or positional relationship indicated by "straight", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description , rather than indicating or implying that the indicated device or element must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

Referring to FIG. 1 , an embodiment provides a joint pipe docking device for a concrete seepage prevention wall, which includes a plurality of joint pipe pipe bodies 1 , a base 2 and a connecting device. The two joint pipe bodies 1 are connected by the connecting device, and the required number of joint pipes can be determined according to the depth of the deep foundation pit. Compared with the joint pipes of fixed length, the adaptability of the joint pipes is improved. In addition, the installation and transportation of a single joint pipe body 1 is also more convenient than a joint pipe of fixed length. The base 2 is provided at the bottom of the joint pipe body 1 located at the bottom, and the base 2 can prevent concrete from entering into the joint pipe body 1 and blocking the joint pipe body 1 during pouring.

The connecting device includes a connecting chamber 3 and a connecting pin 4. The connecting chamber 3 is located at both ends of the joint pipe body 1 and is embedded in the joint pipe body 1 without protruding from the joint. The installation form of the pipe body 1 can keep the overall consistency of the outer surface of the joint pipe body 1 and avoid movement interference during the extubation process. The connecting pins 4 are respectively connected to the connecting chambers 3 of the two joint pipe bodies 1, so that the two joint pipe bodies 1 are connected together through the connecting pins 4, and the connecting pins 4 are connected to the Compared with the bolt connection, the connection method of the chamber 3 is more convenient in the installation and disassembly process, and the use is faster and more efficient; at the same time, compared with the horizontally arranged plug, after the plug is inserted into the pin hole, due to the interference fit, it needs to be inserted from the opposite direction of the plug. The bolt is ejected, and the pipe fittings cannot adopt such an operation, which brings inconvenience to the disassembly. Therefore, the connection method of the connection chamber 3 and the connection pin 4 is developed and designed in consideration of the application scene of the joint pipe body 1 and the operability. During extubation, along with the extubation process, the drawn joint pipe body 1 can be easily disassembled one by one, thereby reducing the potential safety hazard caused by the high joint pipe.

Please refer to FIG. 3 or FIG. 4 , in some embodiments, the connecting pin 4 includes a connecting rod 40 , a first end 41 and a second end 42 , the first end 41 and the second end 42 42 respectively enter the connecting chambers 3 of the two joint pipe bodies 1, and are connected with the connecting chambers 3, the first end 41 and the second end 42 are connected by the connecting rod 40 , the two joint pipe bodies 1 are connected together through the connecting rod 40 .

Referring to FIG. 3 , in some embodiments, the shape of the end surface of the first terminal 41 is different from that of the second terminal 42 . The shape of the end surface of the first end head 41 can be oval, polygon, etc., and the shape of the end surface of the second end head 42 can be oval, polygon and so on. For example, the shape of the end face of the first end head 41 is circular, which can increase the contact area with the connection chamber 3 , and the end face shape of the second end head 42 is circular through the tangent to the connecting rod 40 The formation of two parallel straight lines is not only convenient to manufacture, but also can avoid stress concentration when subjected to tensile force.

Referring to FIG. 4 , in some embodiments, the end face shape of the first end head 41 is the same as the end face shape of the second end head 42 , and is not circular, and the end face shape of the first end head 41 The shape of the end face of the second end head 42 may be an ellipse, a polygon, etc., wherein the projections of the end face of the first end head 41 on the end face of the second end head 42 substantially coincide with each other. For example, the end faces of the first end head 41 and the second end head 42 are both circular and formed by cutting two parallel lines tangent to the connecting rod 40, which is not only convenient to manufacture, but also avoids the need for The concentration of stress during tension.

Referring to FIG. 2 , in some embodiments, the connection chamber 3 is a cavity structure, and is provided with an operation port 30 . The size of the operation port 30 is larger than the outer contour of the connection pin 4 , which is convenient for the operator to pass through the The operation port 30 can take and place the connecting pin 4 .

Referring to FIG. 2 , in some embodiments, two connecting chambers 3 are provided at corresponding positions with through holes 31 that match the shape of the end face of the first end head 41 , and the inner contour of the through holes 31 is slightly larger than all of the through holes 31 The outer contour of the first end 41 is described. When two joint pipe bodies 1 need to be connected, the first end 41 of the connecting pin 4 passes through the through hole 31 by placing the connecting pin 4 in one of the connecting chambers 3 . , reach the other connecting chamber 3 , and then rotate the first end 41 by a certain angle, for example, the end face of the first end 41 has a circular shape and passes through two parallel tangents to the connecting rod 40 . When forming a straight line, the first end 41 can be rotated by 90°, so that the end face of the first end 41 close to the connecting rod 40 is in contact with the inner wall of the connecting chamber 3. At this time, the The end surface of the second end 42 close to the connecting rod 40 abuts against the inner wall of the other connecting chamber 3 . In the above embodiment, when the shape of the end face of the first end head 41 and the end face shape of the second end head 42 are different, it is necessary to use the first end head 41 to pass through the through hole 31 . . If the end face shape of the first end head 41 and the end face shape of the second end head 42 are the same, the operation of passing through the through hole 31 can be optionally performed at either end head, which reduces the difficulty of the operation.

Please refer to FIG. 5 and FIG. 6 , in some embodiments, the base 2 is provided with a connecting plate 20 , the connecting plate 20 is provided with a card slot 21 , and the base 2 is fastened by the card slot 21 . The annular rib 10 of the joint pipe body 1 is connected with the joint pipe body 1 . The connecting plate 20 includes six pieces, which are symmetrically distributed at different positions on the base 2 along the horizontal axis, and are connected with the annular rib plate 10 , and the connection is firm, and the base 2 is not easy to fall off the joint pipe body 1.

Please refer to FIG. 1 and FIG. 5 , in some embodiments, the base 2 is provided with a ventilation hole 22 , the ventilation hole 22 is blocked by a shutter 23 , and one end of the shutter 23 is hinged with the base 2 . The shutter 23 can be opened and closed outward, and is kept in a normally closed state by the elastic member 5 . The elastic member 5 can be a rubber strip. One end of the rubber strip is set on the inner wall of the joint pipe body 1, and the other end is set on the shutter 23. The elastic contraction of the rubber strip is used to tighten the The shutter 23 is kept in a normally closed state, which can prevent concrete from entering into the joint pipe body 1 and blocking the joint pipe body 1 during pouring. During the extubation operation, the gas can enter through the joint pipe body 1, and flow out from the valve 23 to the bottom of the base 2 to balance the pressure, avoid negative pressure under the base 2, and increase the difficulty of extubation .

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the technical principles of the present invention, several improvements and modifications can also be made. These improvements and modifications It should also be regarded as the protection scope of the present invention.

Claims (10)

1. a concrete anti-seepage wall joint pipe docking device, it is characterized in that: comprise a plurality of joint pipe bodies, base and connecting device, between two described joint pipe bodies are connected by described connecting device, be positioned at the bottom The bottom of the joint pipe body is provided with the base; the connecting device includes a connecting chamber and a connecting pin, and the connecting chamber is located at both ends of the joint pipe body and embedded in the joint pipe body. , the connecting pins are respectively connected to the connecting chambers of the two joint pipe bodies. 2. a kind of concrete seepage-proof wall joint pipe docking device as claimed in claim 1, is characterized in that: described connecting pin comprises connecting rod, first end and second end, described first end and all The second end is connected by the connecting rod. 3. a kind of concrete seepage wall joint pipe docking device as claimed in claim 2, is characterized in that: the end face shape of described first end is different from the end face shape of described second end. 4. a kind of concrete seepage-proof wall joint pipe docking device as claimed in claim 3, is characterized in that: the end face shape of described first end head is circular, and the end face shape of described second end head is that circle passes through Two parallel straight lines tangent to the connecting rod are formed by cutting. 5. a kind of concrete seepage-proof wall joint pipe docking device as claimed in claim 2, is characterized in that: the end face shape of described first end head is identical with the end face shape of described second end head, and is not circular . 6. a kind of concrete seepage-proof wall joint pipe docking device as claimed in claim 5, is characterized in that: the end face shape of described first end head and described second end head are circular and pass through with described connecting rod The formation of two parallel straight lines that are tangent to each other. 7. A concrete seepage-proof wall joint pipe docking device according to any one of claims 1 to 6, characterized in that: the connecting chamber is a cavity structure, and is provided with an operation port, and the size of the operation port is larger than the outer contour of the connecting pin. 8. A concrete seepage-proof wall joint pipe docking device according to any one of claims 2 to 6, characterized in that: the corresponding positions of the two connecting chambers are provided with a shape matching the end face of the first end. through holes. 9. a kind of concrete seepage-proof wall joint pipe docking device as claimed in claim 1, is characterized in that: described base is provided with connecting plate, and described connecting plate is provided with clamping groove, described base passes through described clamping The groove engages the annular rib of the joint pipe body and is connected with the joint pipe body. 10. a kind of concrete anti-seepage wall joint pipe docking device as claimed in claim 9, is characterized in that: described base is provided with vent hole, and described vent hole is shielded by shutter, and described shutter can be opened and closed outwards , and is kept normally closed by elastic parts.

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