Foundation pit support pipe fitting connection device

Abstract

The present invention discloses a connecting device for foundation pit support pipe fittings, which includes a vertical pipe connecting mechanism and a horizontal pipe connecting mechanism that are vertically connected; a first connecting pipe head vertically arranged is detachably connected to the vertical pipe connecting mechanism, and at least one second connecting pipe head horizontally arranged is fixedly connected to the horizontal pipe connecting mechanism; both the first connecting pipe head and the second connecting pipe head are provided with connecting threads. By setting the vertical pipe connecting mechanism and the horizontal pipe connecting mechanism to fix the first connecting pipe head and the second connecting pipe head, and connecting and fixing the first connecting pipe head and the second connecting pipe head to different support pipe fittings in a threaded connection manner, the present invention realizes the rapid connection of different support pipe fittings, and the support pipe fittings and the connecting device for foundation pit support pipe fittings will not loosen and displace due to force, and the connection is stable and reliable, which can effectively ensure the quality and safety of foundation construction.

Description

Technical Field

[0001] The present invention relates to the technical field of foundation construction, and in particular to a connecting device for foundation pit support pipe fittings. Background Technique

[0002] Before foundation construction, it is necessary to conduct geological exploration in advance and understand the underground pipeline conditions, and then prepare a special construction plan according to the soil conditions and foundation depth. The construction plan is in line with the actual construction site and can guide the actual construction. The content of the construction plan includes: slope requirements or support structure design, selection of machinery type, excavation sequence and layered excavation depth, ramp position, side load of the pit, vehicle access road, precipitation and drainage measures, and monitoring requirements, etc. Corresponding measures should be taken for important underground pipelines. In particular, a special construction plan needs to be prepared for deep foundation pits, and construction can only be carried out after the foundation pit support meets the requirements.

[0003] In the current foundation pit support adopted in the industry, the connecting pipe fittings used for foundation pit support and support basically adopt fastener-type connectors for connection. Not only is the connection relatively troublesome, but also the strength and stability of its structure are poor. After being stressed for a long time, the connected pipe fittings are prone to looseness and displacement, which may cause quality and safety problems, and the construction safety cannot be guaranteed. Summary of the Invention

[0004] The technical problem to be solved by the present invention is: to provide a connecting device for foundation pit support pipe fittings with good pipe fitting connection stability.

[0005] The technical solution adopted by the present invention to solve the above technical problem is: a connecting device for foundation pit support pipe fittings, including a vertical pipe connecting mechanism and a horizontal pipe connecting mechanism connected vertically; a vertically arranged first connection pipe head is detachably connected to the vertical pipe connecting mechanism, and at least one horizontally arranged second connection pipe head is fixedly connected to the horizontal pipe connecting mechanism; connection threads are provided on both the first connection pipe head and the second connection pipe head.

[0006] Further: The vertical pipe connecting mechanism includes a support connection seat, a support connection pipe, a support plate, and at least one hydraulic cylinder; the support plate is fixedly connected to the horizontal pipe connecting mechanism, the hydraulic cylinder is fixed on the support plate, and the output end of the hydraulic cylinder is connected to the support connection seat; the support connection pipe is vertically arranged and rotatably connected to the support connection seat, and the other end of the support connection pipe is threadedly connected to the first connection pipe head.

[0007] Further: The number of the hydraulic cylinders is two, and the two hydraulic cylinders are symmetrically fixed at both ends of the support plate.

[0008] Further: The support connection pipe is rotatably connected to the support connection seat through a bearing.

[0009] Further: It further includes a motor fixed on the support connection seat. A driven gear is fixedly connected to the outer periphery of the support connection pipe, and the output end of the motor is connected to a driving gear that meshes with the driven gear in transmission.

[0010] Further: It further includes at least one guide rod fixed on the support connection seat. A limiting plate is fixed on the first connection pipe head, and a limiting hole corresponding to the guide rod is provided on the limiting plate.

[0011] Further: The horizontal pipe connection mechanism includes a connection head seat, and the connection head seat is fixedly connected to the vertical pipe connection mechanism; the number of the second connection pipe heads is two, and the two second connection pipe heads are coaxially arranged and are respectively fixed on both sides of the connection head seat.

[0012] Further: It further includes at least one set of strengthening mechanisms. The strengthening mechanism is composed of a fixing plate, a connecting hoop and two telescopic rods; the fixing plate is fixed on the connection head seat, one ends of the two telescopic rods are hinged on the connecting hoop, and the other ends are respectively hinged on the vertical pipe connection mechanism and the fixing plate; the connecting hoop is coaxially opposite to the second connection pipe head.

[0013] Further: The connecting hoop is composed of two relatively connected semi-circular clamping plates, and the edge parts of the semi-circular clamping plates are provided with folded edges and are connected by bolts.

[0014] Further: The number of the strengthening mechanisms is two groups, and the two groups of strengthening mechanisms are respectively arranged on both sides of the connection head seat, and the connecting hoops of the two groups of strengthening mechanisms are respectively coaxially opposite to the two second connection pipe heads.

[0015] The beneficial effects of the present invention are: By setting the vertical pipe connection mechanism and the horizontal pipe connection mechanism to fix the first connection pipe head and the second connection pipe head, and connecting and fixing the first connection pipe head and the second connection pipe head to different support pipe fittings by means of threaded connection, the rapid connection of different support pipe fittings is realized. There will be no loosening and displacement due to force between the support pipe fittings and the foundation pit support pipe fitting connection device of the present invention, and the connection is stable and reliable, which can effectively ensure the quality and safety of foundation construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present invention;

[0017] Figure 2 is an exploded view of the structure of the present invention;

[0018] The labels in the figure are: 100 - the first connecting pipe head, 110 - the limiting plate, 200 - the second connecting pipe head, 310 - the supporting connecting seat, 311 - the guiding rod, 320 - the supporting connecting pipe, 321 - the driven gear, 330 - the supporting plate, 340 - the hydraulic cylinder, 350 - the motor, 351 - the driving gear, 410 - the connecting head seat, 420 - the strengthening mechanism, 421 - the fixing plate, 422 - the connecting hoop, 423 - the telescopic rod, 424 - the semi-circular clamping plate. Detailed implementation mode

[0019] For the convenience of understanding the present invention, the present invention will be further described below with reference to the accompanying drawings.

[0020] As Figure 1 and Figure 2 shown, the connecting device for the foundation pit support pipe fittings disclosed by the present invention includes a vertical pipe connecting mechanism and a horizontal pipe connecting mechanism that are perpendicularly connected to each other. The vertical pipe connecting mechanism is used to connect and fix the support pipe fittings in the vertical direction, and the horizontal pipe connecting mechanism is used to connect the support pipe fittings in the horizontal direction. A first connecting pipe head 100 detachably connected to the vertical pipe connecting mechanism is provided on the vertical pipe connecting mechanism, and the first connecting pipe head 100 is vertically connected to the vertical pipe connecting mechanism; a second connecting pipe head 200 fixedly connected to the horizontal pipe connecting mechanism is provided on the horizontal pipe connecting mechanism, and the number of the second connecting pipe heads 200 is set according to the number of the horizontal support pipe fittings to be connected; connecting threads for threadedly matching with the support pipe fittings are provided on both the first connecting pipe head 100 and the second connecting pipe head 200, and the connecting threads can be external threads or internal threads.

[0021] As Figure 1 and Figure 2 ​As shown in the figure, the vertical pipe connection mechanism adopted in the present invention includes a support connection seat 310, a support connection pipe 320, a support plate 330, and a hydraulic cylinder 340; the support plate 330 is horizontally arranged and fixedly connected to the horizontal pipe connection mechanism, the hydraulic cylinder 340 is vertically arranged and its bottom is fixed on the top surface of the support plate 330, the output end of the hydraulic cylinder 340 is fixedly connected to the bottom surface of the support connection seat 310, the support connection seat 310 is arranged to be liftable on the vertical pipe connection mechanism, and the support connection seat 310 can be limited by the vertical pipe limiting structure. The support connection seat 310 is sleeved on the vertical pipe limiting structure, so that the support connection seat 310 can be vertically lifted and lowered along the vertical pipe limiting structure under the drive of the hydraulic cylinder 340, so that the height of the support pipe fitting in the vertical direction is adjustable; in the present invention, in order to ensure the stability of the lifting of the support connection seat 310, two hydraulic cylinders 340 are used to support and lift the support connection seat 310, and the two hydraulic cylinders 340 are symmetrically fixed at both ends of the support plate 330. The support connection pipe 320 is vertically arranged, the bottom end of the support connection pipe 320 is rotatably connected to the support connection seat 310, the top end of the support connection pipe 320 is provided with an external thread, and an internal thread is arranged inside the first connection pipe head 100, so that the support connection pipe 320 is threadedly connected to the first connection pipe head 100. The rotatable connection between the support connection pipe 320 and the support connection seat 310 is realized by means of a bearing. The bearing is fixed in the vertical pipe limiting structure, and the bottom of the support connection pipe 320 is fixedly connected to the inner ring of the bearing.

[0022] In the present invention, the motor 350 can be used to drive the support connection pipe 320 to rotate to fix the first connection pipe head 100. As Figure 1 and Figure 2 shown, the motor 350 is vertically fixed on the support connection seat 310, the output end of the motor 350 is connected to a driving gear 351, and a ring of driven gears 321 is fixed on the outer periphery of the support connection pipe 320, and the driving gear 351 and the driven gears 321 are meshed with each other. When the motor 350 works, it can drive the driving gear 351 to rotate, the driving gear 351 rotates to drive the meshed driven gears 321 to rotate, so as to drive the support connection pipe 320 to rotate, keep the first connection pipe head 100 fixed, and relative rotation occurs between the support connection pipe 320 and the first connection pipe head 100, so that the support connection pipe 320 can be screwed into the first connection pipe head 100, thereby realizing the threaded connection between the first connection pipe head 100 and the support connection pipe 320.

[0023] Furthermore, in the present invention, a guide rod 311 is provided on the support connection seat 310 to assist in realizing the connection between the support connection pipe 320 and the first connection pipe head 100. The guide rod 311 is vertically fixed on the top surface of the support connection seat 310. A limit plate 110 is fixed on the first connection pipe head 100, and a limit hole through which the guide rod 311 can pass is provided on the limit plate 110. The number of the guide rods 311 is preferably two, and the two guide rods 311 are respectively located on both sides of the support connection pipe 320. When fixing the first connection pipe head 100, the guide rod 311 is passed through the limit plate 110 on the first connection pipe head 100 and fastened by bolts. Then, the motor 350 operates to drive the support connection pipe 320 to rotate. Due to the limiting effect of the guide rod 311, the first connection pipe head 100 cannot rotate, so that relative rotation occurs between the first connection pipe head 100 and the support connection pipe 320, and the support connection pipe 320 is screwed into the first connection pipe head 100 to realize the threaded connection between the first connection pipe head 100 and the support connection pipe 320, reducing the manual labor intensity, facilitating the construction quickly and effectively saving the construction time.

[0024] As Figure 1 and Figure 2 shown, the main body of the horizontal pipe connection mechanism adopted in the present invention is a connection head seat 410, and the connection head seat 410 is fixed below the support plate 330 in the vertical pipe connection mechanism. The number of the second connection pipe heads 200 is two, and the two second connection pipe heads 200 are coaxially arranged and respectively fixed on both sides of the connection head seat 410. External threads or internal threads are provided on the two second connection pipe heads 200 to realize the threaded connection with the support pipe fittings in the horizontal direction.

[0025] In order to enhance the reliability of the connection of the support pipe fittings in the horizontal direction, a strengthening mechanism 420 is also provided in the present invention to strengthen the support pipe fittings; the number of the strengthening mechanisms 420 corresponds to the number of the second connection pipe heads 200, and each group of the strengthening mechanisms 420 is matched with one second connection pipe head 200. Two second connection pipe heads 200 are adopted in the present invention, and correspondingly, two groups of the strengthening mechanisms 420 need to be provided. As Figure 1As shown in the figure, each set of strengthening mechanism 420 is composed of a fixed plate 421, a connecting hoop 422 and two telescopic rods 423; the fixed plate 421 is fixed on the connecting head seat 410, and all the strengthening mechanisms 420 can share one fixed plate 421; one end of the two telescopic rods 423 is hinged on the connecting hoop 422, and the other ends are respectively hinged on the vertical pipe connecting mechanism and the fixed plate 421; the connecting hoop 422 is coaxially opposite to the second connecting pipe head 200. The connecting hoop 422 is composed of two relatively connected semi-circular clamping plates 424, and the edges of the semi-circular clamping plates 424 are provided with flanges and are connected by bolts. Pass the support pipe fitting threadedly connected to the first connecting pipe head 200 through the connecting hoop 422 of the corresponding strengthening mechanism 420, and use bolts to lock the connecting hoop 422 to fix the support pipe fitting passing through the connecting hoop 422, so as to strengthen and reinforce the support pipe fitting in the horizontal direction and prevent it from loosening.

Claims

1. Foundation pit support pipe fitting connection device, characterized in that: It includes a vertical pipe connection mechanism and a horizontal pipe connection mechanism connected vertically; a vertically arranged first connection pipe head (100) is detachably connected to the vertical pipe connection mechanism, and at least one horizontally arranged second connection pipe head (200) is fixedly connected to the horizontal pipe connection mechanism; connection threads are provided on both the first connection pipe head (100) and the second connection pipe head (200). The vertical pipe connection mechanism includes a support connection seat (310), a support connection pipe (320), a support plate (330), and at least one hydraulic cylinder (340); the support plate (330) is fixedly connected to the horizontal pipe connection mechanism, the hydraulic cylinder (340) is fixed on the support plate (330), and the output end of the hydraulic cylinder (340) is connected to the support connection seat (310); the support connection pipe (320) is arranged vertically and is rotatably connected to the support connection seat (310), and the other end of the support connection pipe (320) is threadedly connected to the first connection pipe head (100). It further includes a motor (350) fixed on the support connection seat (310), a driven gear (321) is fixedly connected to the outer periphery of the support connection pipe (320), and the output end of the motor (350) is connected to a driving gear (351) that is in transmission engagement with the driven gear (321). It further includes at least one guide rod (311) fixed on the support connection seat (310), a limit plate (110) is fixed on the first connection pipe head (100), and limit holes corresponding to the guide rod (311) are provided on the limit plate (110). The horizontal pipe connection mechanism includes a connection head seat (410), and the connection head seat (410) is fixedly connected to the vertical pipe connection mechanism; the number of the second connection pipe heads (200) is two, and the two second connection pipe heads (200) are arranged coaxially and are respectively fixed on both sides of the connection head seat (410). It further includes at least one set of strengthening mechanisms (420), and the strengthening mechanism (420) is composed of a fixing plate (421), a connecting hoop (422), and two telescopic rods (423). The fixing plate (421) is fixed on the connection head seat (410), one ends of the two telescopic rods (423) are hinged to the connecting hoop (422), and the other ends are respectively hinged to the vertical pipe connection mechanism and the fixing plate (421); the connecting hoop (422) is coaxially opposite to the second connection pipe head (200). The connecting hoop (422) is composed of two relatively connected semi-circular clamping plates (424), and the edges of the semi-circular clamping plates (424) are provided with flanges and are connected by bolts. The number of the strengthening mechanisms (420) is two groups, and the two groups of strengthening mechanisms (420) are respectively arranged on both sides of the connection head seat (410), and the connecting hoops (422) of the two groups of strengthening mechanisms (420) are respectively coaxially opposite to the two second connection pipe heads (200).

2. The connecting device for foundation pit support pipe fittings according to claim 1, characterized in that: The number of the hydraulic cylinders (340) is two, and the two hydraulic cylinders (340) are symmetrically fixed at both ends of the support plate (330).

3. The connecting device for foundation pit support pipe fittings according to claim 1, characterized in that: The support connection pipe (320) is rotatably connected to the support connection seat (310) through a bearing.

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