Deep foundation pit dewatering well point pipe fixing clamping seat

Abstract

The utility model discloses deep foundation pit dewatering well point pipe fixed clamping seat, including with well point dewatering pipe cooperation's clamping seat device ontology, the outside fixed mounting of well point dewatering pipe has chuck, the clamping seat device ontology includes: support seat, its bottom is provided with annular groove, its top is provided with countersunk hole, and well point dewatering pipe verticals through the countersunk hole inside, and chuck movable sleeve is in the countersunk hole inside upper portion and with its step place inner wall movable contact, L shaped support, it is four groups, and is rectangular fixed connection in support seat bottom, and is provided with two installation perforation on its bottom inner wall. The utility model discloses through being provided with a series of structures, can be in upper portion to well point dewatering pipe card branch suspender anti -fall, and it is convenient to further hold positioning support in four directions in lower portion to well point dewatering pipe, carries out stable restriction work, convenient operation, reduces the phenomenon that well point dewatering pipe inclines or swings and is not stable in the water pumping dewatering work in deep foundation pit well mouth, improves use stability.

Description

Technical Field

[0001] This utility model relates to the field of dewatering technology in deep foundation pit construction, specifically to a fixing bracket for well point pipes in deep foundation pit dewatering. Background Technology

[0002] In the construction of deep foundation pits, dewatering is a crucial task. When the groundwater level is higher than the excavation bottom, groundwater will continuously seep into the pit. To ensure that the foundation pit can be constructed under dry conditions and to prevent problems such as slope instability, quicksand, pit bottom heave, piping at the pit bottom, and a decrease in the bearing capacity of the foundation, effective dewatering is required. Usually, after the foundation pit support structure (such as sheet pile support, steel section support, etc.) is completed, wellpoint dewatering pipes are installed in the manhole to achieve the dewatering effect. The fixing bracket is a support used to support the wellpoint dewatering pipes from above when they are inserted into the manhole, preventing them from falling or detaching. Existing deep foundation pit dewatering wellpoint pipe fixing brackets have the following shortcomings in use: during the upper clamping and supporting of the wellpoint dewatering pipe, there is a lack of a stability limiting mechanism for the wellpoint dewatering pipe. Simple clamping and supporting inevitably leads to severe tilting or swaying of the lower part under the impact of water generated during dewatering, resulting in poor stability. In view of this, this application proposes a deep foundation pit dewatering wellpoint pipe fixing bracket to solve the above-mentioned problems. Summary of the Invention

[0003] The purpose of this utility model is to provide a fixing bracket for the well point pipe of deep foundation pit dewatering, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a fixing bracket for deep foundation pit dewatering wellpoint pipes, comprising a bracket device body that cooperates with the wellpoint dewatering pipe, wherein a chuck is fixedly installed on the outer side of the wellpoint dewatering pipe, and the bracket device body comprises: The support base has an annular groove at its bottom and a countersunk hole at its top. The well point dewatering pipe passes vertically through the countersunk hole. The chuck is movably fitted inside the upper part of the countersunk hole and makes movable contact with the inner wall of its step. The countersunk hole is used to engage and position the chuck on its outer side after the well point dewatering pipe passes through and to provide vertical support. The L-shaped bracket consists of four sets, which are fixedly connected to the bottom of the support base in a rectangular shape. Two mounting holes are opened on the inner wall of the bottom of the bracket. An annular support plate is fixedly connected to the bottom of the support base and is adapted to the annular groove; The threaded tension clamp assembly consists of four sets, which are installed in a ring at equal intervals at the bottom of the ring support plate and surround the well point dewatering pipe. The four-point linkage rotary drive assembly is installed in the annular groove and fixedly connected to the top of the four threaded tension clamp assemblies. The four-point linkage rotary drive assembly is used to drive the four threaded tension clamp assemblies to rotate synchronously. The four threaded tension clamp assemblies are used to support and clamp the well point dewatering pipe synchronously from four directions towards the middle during rotation, or to move outward synchronously in four directions to release the support and clamping state. The four-way support and clamping is used to further clamp and position the well point dewatering pipe at the bottom, reducing its tilting or swaying instability.

[0005] Preferably, the four-point linkage rotary drive assembly includes an outer gear ring, four gears, a rotating shaft, and a rocker plate. The outer gear ring is rotatably sleeved on the inner wall of the annular groove. The four gears mesh in an annular pattern at equal intervals on the outer side of the outer gear ring. The rotating shaft is fixedly connected to the top of the gear on the left side, and the top end of the rotating shaft extends above the support base and is fixedly connected to the bottom of the rocker plate.

[0006] Preferably, the threaded tension clamp assembly includes a rectangular tube, a rectangular rod, a screw, a clamping rod, and a diagonal connecting rod. The four rectangular tubes are fixedly connected to the bottom of the annular support plate in a ring at equal intervals. The four rectangular rods are slidably sleeved in the corresponding rectangular tubes. The four screws are rotatably embedded in the bottom of the annular support plate in a ring at equal intervals. The four rectangular rods are threaded onto the corresponding screws. The tops of the four clamping rods are rotatably installed with the side of the corresponding rectangular tube near the well point dewatering pipe. The two opposite clamping rods are symmetrically arranged at an angle. The bottom of the clamping rod is set as a circular protruding structure. The diagonal connecting rod is rotatably installed between the bottom of the corresponding rectangular rod near the well point dewatering pipe and the side of the clamping rod away from the well point dewatering pipe. The two opposite diagonal connecting rods are symmetrically arranged. The tops of the four screws are fixedly connected to the bottom of the corresponding gears.

[0007] Preferably, an electric wrench hexagonal plug is fixedly connected to the top center of the chuck.

[0008] Preferably, an anti-slip rubber sheet is bonded and fixed to the outer side of the circular protrusion at the bottom end of the clamping rod.

[0009] Preferably, the top end of the rectangular rod has a threaded groove that is threaded to the corresponding screw.

[0010] Preferably, a U-shaped seat is fixedly connected to the side of the rectangular tube near the well point dewatering pipe, and a stainless steel shaft is fixedly connected between the inner walls of the two sides of the U-shaped seat. A first circular hole is opened on the top of one side of the clamping rod, and a first bearing is fixedly sleeved in the first circular hole. The inner ring of the first bearing is fixedly sleeved with the outer side of the corresponding stainless steel shaft.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. Through the combination of the L-shaped bracket, support base, countersunk hole, well point dewatering pipe and chuck, the well point dewatering pipe can be clamped and supported at the top to prevent it from falling. 2. By combining the four-point linkage rotary drive assembly, the threaded tension clamp assembly and the ring support plate, the well point dewatering pipe can be clamped, positioned and supported simultaneously from four directions at the bottom, and stabilized to reduce the phenomenon of well point dewatering pipe tilting or swaying during pumping and dewatering in deep foundation pit wellheads, thus improving the stability of use. It can also simultaneously release the four-way support clamping work, making it easy to operate.

[0012] This utility model, through the setting of a series of structures, can clamp and support the well point dewatering pipe at the top to prevent it from falling, and can also facilitate the simultaneous clamping, positioning and support of the well point dewatering pipe from four directions at the bottom to perform stable restraint work. It is easy to operate, reduces the phenomenon of well point dewatering pipe tilting or swaying and unstable during water pumping and dewatering in deep foundation pit wellheads, and improves the stability of use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the fixing bracket for the deep foundation pit dewatering well point pipe proposed in this utility model; Figure 2 This is a schematic diagram of the front sectional view of the fixing bracket for the deep foundation pit dewatering well point pipe proposed in this utility model; Figure 3 For the present utility model Figure 2 A magnified structural diagram of part A in the diagram.

[0014] In the diagram: 1. Wellpoint dewatering pipe; 101. Chuck; 2. Support base; 201. Countersunk hole; 202. L-shaped bracket; 203. Annular groove; 3. Annular support plate; 301. Rectangular tube; 302. Screw; 303. Rectangular rod; 304. Clamping rod; 305. Diagonal connecting rod; 306. Stainless steel shaft; 4. External gear ring; 401. Gear; 402. Rocking plate. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] like Figures 1 to 3 As shown, the deep foundation pit dewatering wellpoint pipe fixing bracket proposed in this embodiment includes a bracket device body that cooperates with the wellpoint dewatering pipe 1. A chuck 101 is fixedly installed on the outside of the wellpoint dewatering pipe 1. The bracket device body includes: The support base 2 has an annular groove 203 at its bottom and a countersunk hole 201 at its top. The well point dewatering pipe 1 vertically passes through the countersunk hole 201. The chuck 101 is movably fitted inside the upper part of the countersunk hole 201 and makes movable contact with the inner wall of its step. The countersunk hole 201 is used to engage and position the chuck 101 on its outer side after the well point dewatering pipe 1 passes through and to provide vertical support. The L-shaped bracket 202 consists of four sets, which are fixedly connected to the bottom of the support base 2 in a rectangular shape. Two mounting holes are provided on the inner wall of the bottom of the bracket. The mounting holes are provided for personnel to install and fix the L-shaped bracket 202 with external anchor rods or ground nails. The annular support plate 3 is fixedly connected to the bottom of the support base 2 and is adapted to the annular groove 203; The threaded tension clamp assembly consists of four sets, which are installed in a ring at equal intervals at the bottom of the ring support plate 3 and surround the well point dewatering pipe 1. The four-point linkage rotary drive assembly is installed in the annular groove 203 and fixedly connected to the top of the four threaded tension clamp assemblies. The four-point linkage rotary drive assembly is used to drive the four threaded tension clamp assemblies to rotate synchronously. The four threaded tension clamp assemblies are used to support and clamp the well point dewatering pipe 1 synchronously from four directions towards the center during rotation, or to move outward synchronously in four directions to release the support and clamping state. The four-way support and clamping is used to further clamp and position the well point dewatering pipe 1 at the bottom, reducing its tilting or swaying instability.

[0017] Furthermore, such as Figure 2 and 3 As shown, the four-point linkage rotary drive assembly includes an outer gear ring 4, four gears 401, a rotating shaft and a rocker plate 402. The outer gear ring 4 is rotatably sleeved on the inner side wall of the annular groove 203. The four gears 401 are meshed in annular and equally spaced on the outer side of the outer gear ring 4. The rotating shaft is fixedly connected to the top of the gear 401 on the left side. The top of the rotating shaft extends to the top of the support base 2 and is fixedly connected to the bottom of the rocker plate 402. In this embodiment, a second bearing is fixedly fitted inside the outer gear ring 4, and the inner ring of the second bearing is fixedly fitted to the inner side wall of the annular groove 203, so as to achieve the effect of rotating the outer gear ring 4; a circular movable through hole is provided on the top inner wall of the annular groove 203 for the rotating shaft to pass through. In this embodiment, through the cooperation of the external gear ring 4, four gears 401, rotating shaft and rocker plate 402, when the person rotates the rocker plate 402, the rocker plate 402 drives the left gear 401 to rotate through the rotating shaft, the left gear 401 drives the external gear ring 4 to rotate, and the external gear ring 4 drives the other three gears 401 meshing with it to rotate, so as to achieve the effect of driving the four gears 401 to rotate synchronously.

[0018] Furthermore, such as Figure 1 , 2As shown in Figure 3, the threaded tension clamp assembly includes rectangular tubes 301, rectangular rods 303, screws 302, clamping rods 304, and inclined connecting rods 305. Four rectangular tubes 301 are fixedly connected to the bottom of the annular support plate 3 at equal intervals in a ring. Four rectangular rods 303 are slidably sleeved within their respective rectangular tubes 301. Four screws 302 are rotatably embedded in the bottom of the annular support plate 3 at equal intervals in a ring. The four rectangular rods 303 are threaded onto their respective screws 302. The tops of the four clamping rods 304... The rectangular tubes 301 are rotatably installed on the side of the well point dewatering pipe 1, respectively. The two opposing clamping rods 304 are symmetrically arranged at an angle. The bottom end of the clamping rod 304 is set as a circular protruding structure. The inclined connecting rod 305 is rotatably installed between the bottom of the rectangular tube 303 on the side of the well point dewatering pipe 1 and the side of the clamping rod 304 away from the well point dewatering pipe 1. The two opposing inclined connecting rods 305 are symmetrically arranged. The top ends of the four screws 302 are fixedly connected to the bottom of the corresponding gears 401. In this embodiment, an anti-slip rubber sheet is bonded to the outer side of the circular protrusion at the bottom of the clamping rod 304, which enhances the anti-slip performance during clamping support. A threaded groove is provided at the top of the rectangular rod 303 for threaded connection with the corresponding screw 302. The threaded connection between the screw 302 and the threaded groove facilitates the vertical displacement of the corresponding rectangular rod 303 when the screw 302 rotates. A U-shaped seat is fixedly connected to the side of the rectangular tube 301 near the well point dewatering pipe 1. A stainless steel shaft 306 is fixedly connected between the inner walls of the two sides of the U-shaped seat. A top opening on one side of the clamping rod 304... A first circular hole is provided, and a first bearing is fixedly sleeved in the first circular hole. The inner ring of the first bearing is fixedly sleeved with the outer side of the corresponding stainless steel shaft 306, so as to achieve the effect of rotating the clamping rod 304. The rectangular rod 303 and the corresponding clamping rod 304 are both provided with grooves on the side close to each other. Stainless steel pins are fixedly connected between the inner walls of the two sides of the grooves. A second circular hole is provided on the top and bottom of one side of the inclined connecting rod 305. A third bearing is fixedly sleeved in the second circular hole. The inner ring of the third bearing is fixedly sleeved with the outer side of the corresponding stainless steel pin, so as to achieve the effect of rotating the inclined connecting rod 305. In this embodiment, the rectangular tube 301, rectangular rod 303, screw 302, clamping rod 304, and inclined connecting rod 305 work together. The synchronous rotation of the four gears 401 drives the synchronous rotation of the four screws 302. The rotation of the four screws 302 causes the four rectangular rods 303 to slide upwards or downwards synchronously within the four rectangular tubes 301. When the four rectangular rods 303 move upwards, they cause the four inclined connecting rods 305 to compress and drive the four clamping rods 304 to rotate and retract towards the center. The four clamping rods 304, rotating and retracting towards the center, allow the four... The wellpoint dewatering pipe 1 is simultaneously supported and clamped in four directions. Subsequently, when the four rectangular rods 303 move downward, they drive the four inclined connecting rods 305 to rotate downward, which in turn pulls the four clamping rods 304 to rotate outward and expand, thereby releasing the four-way clamping state. This achieves the effect of simultaneously clamping and positioning the wellpoint dewatering pipe 1 from four directions at the bottom, reducing the phenomenon of tilting or swaying of the wellpoint dewatering pipe 1 during the pumping and dewatering work in the deep foundation pit wellhead, improving the stability of use, and facilitating the subsequent simultaneous release of the four-way clamping work, making the operation convenient.

[0019] Furthermore, an electric wrench hexagonal plug is fixedly connected to the top center of the chuck plate 402; the electric wrench hexagonal plug is provided to allow personnel to quickly rotate the chuck plate 402 by electric drive through an external electric wrench, which allows personnel to flexibly choose according to site conditions and further improves the flexibility of use.

[0020] It should be noted that the external gear ring 4, gear 401, rectangular tube 301, rectangular rod 303, screw 302, clamping rod 304, and inclined connecting rod 305 are all preferably made of stainless steel. The screw 302 has a high wear-resistant load-bearing specification with a thread clearance of 1-2mm on the outer side. The stainless steel material has the advantages of high hardness, high wear resistance, and good maintenance-free effect, which ensures long-term connection and drive support stability.

[0021] The method of use in this embodiment is as follows: When using the deep foundation pit dewatering well point pipe fixing bracket, it is fixed by using external anchor rods or ground nails in conjunction with the installation holes on the L-shaped bracket 202. Before the well point dewatering pipe 1 is inserted into the deep foundation pit well opening, it is inserted into the countersunk hole 201 in advance. When the well point dewatering pipe 1 moves down, it drives the chuck 101 to move and be clamped into the countersunk hole 201. The inner wall of the step of the countersunk hole 201 supports the chuck 101, so as to achieve the effect of clamping and supporting the well point dewatering pipe 1 at the top to prevent it from falling. Rotating the rocker 402 forward causes the left gear 401 to rotate via a rotating shaft. The left gear 401 then rotates the outer gear ring 4, which in turn rotates the other three gears 401 meshing with it. This achieves the effect of driving the four gears 401 to rotate synchronously. The four gears 401 drive the four screws 302 to rotate synchronously. The rotation of the four screws 302 causes the four rectangular rods 303 to slide synchronously upward within the four rectangular tubes 301. When the four rectangular rods 303 move upward, they drive the four inclined connecting rods 305 to squeeze and drive the four clamping rods 304 to rotate and retract towards the center. By using the four clamping rods 304 that rotate and retract towards the center, the well point dewatering pipe 1 can be clamped and supported synchronously from four directions. This allows the well point dewatering pipe 1 to be connected to an external water pump through an external pipe for dewatering. This achieves the effect of further clamping and positioning support for the well point dewatering pipe 1 from four directions synchronously at the bottom, reducing the phenomenon of tilting or swaying of the well point dewatering pipe 1 during dewatering in the deep foundation pit wellhead, and improving the stability of use. When it is necessary to release the clamping support, rotate the rocker 402 in the opposite direction. Similarly, the movement of the rocker 402 is completely opposite to that of rotating it in the forward direction. At this time, the four rectangular rods 303 move downward. The four rectangular rods 303 drive the four inclined connecting rods 305 to rotate downward and pull, causing the four clamping rods 304 to rotate outward and expand, thereby releasing the four-way clamping support. This facilitates the subsequent simultaneous release of the four-way clamping support and makes the operation convenient. The electric wrench hexagonal plug is provided to allow personnel to quickly rotate the rocker 402 electrically via an external electric wrench, allowing personnel to flexibly choose according to the site conditions and further improving the flexibility of use.

[0022] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A fixing bracket for a deep foundation pit dewatering wellpoint pipe, comprising a bracket device body that cooperates with a wellpoint dewatering pipe (1), wherein a chuck (101) is fixedly installed on the outer side of the wellpoint dewatering pipe (1), characterized in that: The card holder device body includes: The support base (2) has an annular groove (203) at its bottom and a countersunk hole (201) at its top. The well point dewatering pipe (1) vertically penetrates the countersunk hole (201). The chuck (101) is movably fitted inside the upper part of the countersunk hole (201) and makes contact with the inner wall of its step. The L-shaped bracket (202) consists of four sets and is fixedly connected to the bottom of the support base (2) in a rectangular shape. Two mounting holes are opened on the inner wall of its bottom. The annular support plate (3) is fixedly connected to the bottom of the support base (2) and is adapted to the annular groove (203); The threaded tension clamp assembly consists of four sets, which are installed in a ring at equal intervals at the bottom of the ring support plate (3) and surround the well point dewatering pipe (1); The four-point linkage rotary drive assembly is installed in the annular groove (203) and fixedly connected to the top of the four threaded tension clamp assemblies.

2. The fixing bracket for the deep foundation pit dewatering well point pipe according to claim 1, characterized in that: The four-point linkage rotary drive assembly includes an outer gear ring (4), four gears (401), a rotating shaft, and a rocker plate (402). The outer gear ring (4) is rotatably sleeved on the inner wall of the annular groove (203). The four gears (401) mesh in an annular pattern at equal intervals on the outer side of the outer gear ring (4). The rotating shaft is fixedly connected to the top of the gear (401) on the left side. The top of the rotating shaft extends to the support base (2) and is fixedly connected to the bottom of the rocker plate (402).

3. The fixing bracket for the deep foundation pit dewatering well point pipe according to claim 2, characterized in that: The threaded tension clamp assembly includes rectangular tubes (301), rectangular rods (303), screws (302), clamping rods (304), and diagonal connecting rods (305). Four rectangular tubes (301) are fixedly connected in a ring at equal intervals to the bottom of the annular support plate (3). Four rectangular rods (303) are slidably fitted into their respective rectangular tubes (301). Four screws (302) are rotatably fitted in a ring at equal intervals to the bottom of the annular support plate (3). Four rectangular rods (303) are threaded onto their respective screws (302). Four clamping rods (304)... The top ends are rotatably installed on the side of the corresponding rectangular tube (301) near the well point dewatering pipe (1). The two opposing clamping rods (304) are symmetrically arranged. The bottom end of the clamping rod (304) is set as a circular protruding structure. The oblique connecting rod (305) is rotatably installed between the bottom of the side of the corresponding rectangular rod (303) near the well point dewatering pipe (1) and the side of the clamping rod (304) away from the well point dewatering pipe (1). The two opposing oblique connecting rods (305) are symmetrically arranged. The top ends of the four screws (302) are fixedly connected to the bottom of the corresponding gear (401).

4. The fixing bracket for the deep foundation pit dewatering well point pipe according to claim 2, characterized in that: An electric wrench hexagonal plug is fixedly connected to the top center of the rocker plate (402).

5. The fixing bracket for the deep foundation pit dewatering well point pipe according to claim 3, characterized in that: The outer side of the circular protrusion at the bottom of the clamping rod (304) is glued and fixed with anti-slip rubber.

6. The fixing bracket for the deep foundation pit dewatering well point pipe according to claim 3, characterized in that: The top end of the rectangular rod (303) is provided with a threaded groove that is threaded to the corresponding screw (302).

7. The fixing bracket for the deep foundation pit dewatering well point pipe according to claim 3, characterized in that: A U-shaped seat is fixedly connected to the side of the rectangular tube (301) near the well point dewatering pipe (1). A stainless steel shaft (306) is fixedly connected between the inner walls of the two sides of the U-shaped seat. A first round hole is opened on the top of one side of the clamping rod (304). A first bearing is fixedly sleeved in the first round hole. The inner ring of the first bearing is fixedly sleeved with the outer side of the corresponding stainless steel shaft (306).

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