CN211596790U - Foundation ditch is strutted with conversion head that can carry out steel pipe male - Google Patents

Abstract

The utility model discloses a conversion head capable of inserting steel pipes for foundation pit support. The conversion head comprises a casing. Each end of the casing is a joint for fixing a steel pipe. A fixed block with an adjustable diameter is provided inside, and each symmetrically distributed joint is provided with a baffle plate that can adjust the relative distance. The length of the steel pipe.

Description

A conversion head capable of inserting steel pipes for foundation pit support

technical field

The utility model relates to the technical field of foundation pit construction devices, in particular to a conversion head capable of inserting steel pipes for foundation pit support.

Background technique

Foundation pit support refers to the support, reinforcement and protection measures adopted for the side walls of the foundation pit and the surrounding environment in order to ensure the safety of the construction of the underground structure and the surrounding environment of the foundation pit. In the installation and splicing of multi-section steel pipes, the existing conversion head cannot adjust the length of the steel pipe. When there is an error in the overall length of the steel pipe, the steel pipe needs to be processed, so that the length of the steel pipe will be lost after multiple uses. It is convenient for the repeated use of the steel pipe. At the same time, when the length of the steel pipe is slightly smaller than the assembly length, the steel pipe needs to be replaced, which is not conducive to reducing the production cost.

Utility model content

In view of the deficiencies of the prior art, in order to overcome the defects of the prior art, the utility model provides a conversion head for foundation pit support that can insert steel pipes, the purpose is to solve the problem that the length of the steel pipes cannot be adjusted by the conversion head during the installation and splicing of multi-section steel pipes The problem.

Its technical scheme is that a conversion head for foundation pit support capable of inserting steel pipes comprises a shell, each end of the shell is a joint for fixing the steel pipe, the joints are symmetrically distributed, and the joints are arranged in a symmetrical manner. A fixed block with an adjustable diameter is arranged inside, and a baffle plate with adjustable relative distance is arranged in each of the symmetrically distributed joints.

Preferably, a worm gear mechanism for driving the movement of the baffles is provided between the baffles in each of the symmetrically distributed joints.

Preferably, the axial inner section of the opening of the joint is a trapezoid, the long side of the upper and lower sides of the trapezoid is located at the opening end of the joint, the inner side of the joint close to the opening is a columnar structure, and the blocking A plate is located within the columnar structure.

Preferably, the baffle includes a first baffle and a second baffle, the first baffle is fixedly connected to the joint, the second baffle is slidably connected to the joint, and the first baffle is and the second baffle plates are respectively located in the symmetrically distributed joints.

Preferably, the worm gear mechanism comprises a worm gear and a worm, the worm gear is fixedly connected with a connecting rod extending from both sides of the worm wheel, the connecting rod is coaxial with the worm gear, and one end of the connecting rod is connected to the first gear The plate is rotatably connected, one end of the connecting rod is threadedly connected with the second baffle plate, the worm is rotatably connected with the casing, and one end of the worm extends out of the casing.

Preferably, the diameter of the baffle is greater than or equal to the diameter of the fixed block.

Preferably, each of the fixing blocks is slidably connected to the inner side of the joint opening, and the inner side of each of the fixing blocks facing the axis is parallel to the axis.

Preferably, each of the fixing blocks is detachably and fixedly connected with a rod, each rod is slidably connected to the housing, and the part of each rod protruding from the housing is connected to the The casing can be slidably and fixedly connected.

Preferably, the casing is provided with a ring for synchronous movement of each of the rods, and the ring is in close contact with the rod.

Preferably, each of the fixing blocks is uniformly distributed in a ring shape in the joint.

The utility model provides a conversion head capable of inserting steel pipes for foundation pit support, and compared with the prior art, the beneficial effects are as follows:

1. Each joint is provided with a fixed block with an adjustable diameter. The axial inner section of the joint opening is a trapezoid. Each fixed block is slidably connected to the inner side of the joint opening. The inner side of each fixed block facing the axis is parallel to the axis. The sliding of the fixed block on the inclined surface makes the diameter of the fixed opening for clamping the steel pipe enclosed by the inner side of the fixed block toward the axis can be adjusted, so that each joint can be fixed with steel pipes of different diameters.

2. Each symmetrically distributed joint is provided with a baffle that can adjust the relative distance, and between the baffles in each symmetrically distributed joint is a worm gear and worm mechanism that drives the movement of the baffle, and drives the worm wheel by rotating the extension end of the worm The rotation of the connecting rod is threaded with the second baffle through one end of the connecting rod, so that the second baffle slides relative to the joint, thereby adjusting the length of the installed steel pipe.

Description of drawings

FIG. 1 is a front sectional view of the utility model.

Figure 2 is a left side view of the utility model.

FIG. 3 is a top view of the utility model.

In the picture: 1 housing, 1.1 joint, 2 fixed block, 4 worm gear mechanism, 4.1 worm gear, 4.2 worm, 5 connecting rod, 6 rod, 7 fastener, 8 ring, 9 first baffle, 10 first Two baffles.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to 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 implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Example 1:

Please refer to FIG. 1, the present utility model provides a technical solution: a conversion head for foundation pit support that can insert steel pipes, comprising a shell 1, the outer surface of the shell 1 is a prismatic structure, and each end of the shell 1 is a prismatic structure. The head is the joint 1.1 for fixing the steel pipe. Each joint 1.1 is symmetrically distributed. The number of joints 1.1 is two, which are symmetrically distributed at both ends of the shell 1. The axial inner section of the opening of the joint 1.1 is a trapezoid. The long side of the joint is located at the open end of the joint 1.1. As shown in Figure 2, the inner side of the opening of the joint 1.1 is a quadrangular pyramid structure, and the inner side of the joint 1.1 that is close to the opening is a columnar structure. Each joint 1.1 has an adjustable diameter. The number of fixed blocks 2 in each joint 1.1 is four, and each fixed block 2 is evenly distributed in a ring shape in the joint 1.1, and each fixed block 2 is slidably connected to the inside of the opening of the joint 1.1. 2 is located at the quadrangular pyramid-shaped structure of the joint 1.1, and the inner side of each fixing block 2 toward the axis is parallel to the axis. The diameter of the fixed port connected to the steel pipe can be adjusted, so that each joint 1.1 can be fixed with steel pipes of different diameters. At the same time, both ends of the shell 1 can be fixed with steel pipes of the same diameter or different diameters of steel pipes. Each fixing block 2 can be detached , A rod 6 is fixedly connected, and the rod 6 is threadedly connected with the fixed block 2, which can be fixed or removed and replaced to form a structure in which the fixed block 2 and the rod 6 are detachably and fixedly connected. Each rod 6 It is slidably connected with the housing 1, the joint 1.1 on the housing 1 is provided with a through hole, and each rod 6 is threadedly connected to the fastener 7 through the through hole extending out of the housing 1, and the fastener 7 is a nut , through the tightening of the fastener 7, the fastener 7 and the fixed block 2 clamp the joint 1.1, so that the fixed block 2, the rod 6 and the joint 1.1 are fixed, and after the fastener 7 is loosened, the rod 6 can be driven to fix The block 2 slides relative to the joint 1.1 to form a structure in which each rod 6 is slidably and fixedly connected to the housing 1 through the fastener 7, wherein there are two rods 6 threadedly connected to each fixed block 2, and the housing 1 The outer casing is provided with a ring member 8 for synchronous movement of each rod member 6, the ring member 8 is close to the rod member 6, and the ring member 8 is located between the two rod members 6 on the same fixed block 2, so that the fixed block 2 moves synchronously.

Each symmetrically distributed joint 1.1 is provided with a baffle that can adjust the relative distance. The baffle is located in the columnar structure of the joint 1.1. The baffle includes a first baffle 9, a second baffle 10, and the first baffle 9 and the joint 1.1. Welding, the second baffle 10 is slidably connected with the joint 1.1, the first baffle 9 and the second baffle 10 are respectively located in the joints 1.1 symmetrically distributed, that is, the first baffle 9 is located in the joint 1.1 at one end of the shell 1, The second baffle 10 is located in the joint 1.1 at the other symmetrical end of the housing 1. By adjusting the movement of the second baffle 10 relative to the first baffle 9, the relative distance of the baffles in each of the symmetrically distributed joints 1.1 can be adjusted. The structure of each symmetrically distributed joint 1.1 between the baffles, that is, between the first baffle 9 and the second baffle 10, is provided with a worm gear mechanism 4 that drives the baffle to move. The worm gear mechanism 4 includes a worm wheel 4.1, a worm screw 4.2, the worm wheel 4.1 is connected with a connecting rod 5 extending from both sides of the worm wheel 4.1, the connecting rod 5 is coaxial with the worm wheel 4.1, one end of the connecting rod 5 is rotationally connected with the first baffle 9, and one end of the connecting rod 5 is connected with the second baffle 10 Threaded connection, the worm 4.2 is rotatably connected to the housing 1 through a bearing, and one end of the worm 4.2 extends out of the housing 1. By rotating the extension end of the worm 4.2, the worm wheel 4.1 is driven to rotate, and one end of the connecting rod 5 is connected to the second gear. The plate 10 is threadedly connected, so that the second baffle 10 slides relative to the joint 1.1, so as to adjust the length of the steel pipe to be clamped. Thereby adjusting the length of the steel pipe.

It should be noted that, in this document, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus. without more restrictions. An element defined by the phrase "comprising an... does not preclude the presence of additional identical elements in a process, method, article or apparatus comprising said element".

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. A conversion head capable of inserting steel pipes for foundation pit support, comprising a casing (1), each end of the casing (1) is a joint (1.1) for fixing a steel pipe, and each of the joints ( 1.1) Symmetrical distribution, characterized in that: each of the joints (1.1) is provided with a fixed block (2) with an adjustable diameter, and each of the symmetrically distributed joints (1.1) is provided with a baffle with an adjustable relative distance. 2. A conversion head capable of inserting steel pipes for foundation pit support according to claim 1, characterized in that: a drive baffle is arranged between the baffle plates in each of the symmetrically distributed joints (1.1) to move. worm gear mechanism (4). 3. A conversion head capable of inserting steel pipes for foundation pit support according to claim 1, characterized in that: the axial inner section of the opening of the joint (1.1) is a trapezoid, and the upper and lower sides of the trapezoid are trapezoidal. The long side of the middle is located at the open end of the joint (1.1), the inner side of the joint (1.1) that is close to the opening is a columnar structure, and the baffle is located in the columnar structure. 4. A conversion head for foundation pit support capable of inserting steel pipes according to claim 2, wherein the baffle plate comprises a first baffle plate (9) and a second baffle plate (10). The first baffle (9) is fixedly connected to the joint (1.1), the second baffle (10) is slidably connected to the joint (1.1), the first baffle (9), the second baffle (1.1) Plates (10) are located in each of said symmetrically distributed joints (1.1). 5. A conversion head for foundation pit support capable of inserting steel pipes according to claim 4, wherein the worm gear mechanism (4) comprises a worm gear (4.1) and a worm (4.2), and the worm gear (4.1) A connecting rod (5) protruding from both sides of the worm wheel (4.1) is fixedly connected, the connecting rod (5) is coaxial with the worm wheel (4.1), and one end of the connecting rod (5) is connected to the first A baffle (9) is rotatably connected, one end of the connecting rod (5) is threadedly connected to the second baffle (10), the worm (4.2) is rotatably connected to the housing (1), and the One end of the worm (4.2) protrudes out of the casing (1). 6. A conversion head for foundation pit support capable of inserting steel pipes according to claim 4, characterized in that the diameter of the baffle plate is greater than or equal to the diameter of the fixed block (2). 7. A conversion head capable of inserting steel pipes for foundation pit support according to claim 3, characterized in that: each of the fixing blocks (2) is slidably connected to the inner side of the opening of the joint (1.1), and each The inner side of the fixing block (2) facing the axis is parallel to the axis. 8. A conversion head for foundation pit support capable of inserting steel pipes according to claim 7, characterized in that: each said fixing block (2) is detachable and fixedly connected with a rod (6), and each The rod (6) is slidably connected to the housing (1), and the part of each rod (6) protruding from the housing (1) is connected to the housing (1) through a fastener (7). 1) Sliding and fixed connection. 9 . A conversion head capable of inserting steel pipes for foundation pit support according to claim 8 , wherein the casing ( 1 ) is covered with a ring for synchronous movement of each of the rods ( 6 ). 10 . A piece (8), the ring piece (8) is in close contact with the rod piece (6). 10. A conversion head for foundation pit support capable of inserting steel pipes according to claim 7, wherein each of the fixing blocks (2) is uniformly distributed in a ring shape in the joint (1.1).

Images