A positioning tool for oblique connection pipe fittings in high-efficiency refrigeration room

Abstract

The present invention is a positioning tool for obliquely connected pipe fittings in a high-efficiency refrigeration room, comprising: a positioner comprising a positioning circular plate, a laser transmitter being installed at the top center position of the positioning circular plate, a first inner ring snap-in composed of a plurality of snap-ins arranged in a circular shape, and a first outer ring snap-in composed of a plurality of snap-ins arranged in a circular shape being welded at the bottom of the positioning circular plate, and the first inner ring snap-in and the first outer ring snap-in are arranged in concentric circles; a target device comprising a target circular plate, a small hole for aligning with the laser being provided at the top center position of the target circular plate as a target bull's eye, a second inner ring snap-in and a second outer ring snap-in are welded at the bottom of the target circular plate, and the second inner ring snap-in and the second outer ring snap-in are arranged in concentric circles; an auxiliary device comprising a platform, a telescopic rod and a base, the platform being welded on the top of the telescopic rod and the base being welded on the bottom, the platform comprising a platform circular plate, a third inner ring snap-in and a third outer ring snap-in are welded on the top of the platform circular plate, and the third inner ring snap-in and the third outer ring snap-in are arranged in concentric circles.

Description

Technical Field

[0001] The invention belongs to the field of building construction and relates to a positioning tool for obliquely connected pipe fittings in a high-efficiency refrigeration room, which improves positioning accuracy, reduces rework, and reduces labor demand. Background Art

[0002] From the "double control of energy consumption" policy to the "double carbon" strategy, in order to achieve energy conservation and emission reduction, the high-efficiency refrigeration room project that is gradually promoted needs to reduce the energy consumption of water system transportation. When laying out the pipeline, the 90-degree right-angle bend of the conventional pipeline connection is changed to a 45-degree oblique bend, and the right-angle tee is changed to a water-following tee. This design of "special-shaped angle connection" of the water pipe reduces the system resistance while adding a lot of difficulty to the on-site construction. During the construction process, whether it is the first branch pipe from the water-following tee of the main pipe to the oblique angle direction and then connect the equipment, this is the positive installation method from top to bottom, first horizontal pipe and then vertical pipe; or the reverse installation method of connecting the branch pipe from the equipment to the main pipe through a 45-degree bend and obliquely connected to the main pipe, the pipeline welding connection is ensured during construction, and the direction of the pipe fittings needs to be ensured to be aligned correctly. If the positioning deviation is large during the installation of the pipe fittings, the straight pipe section between them will not be able to be installed. At this time, it is necessary to readjust the installation angle of the pipe fittings, and even involve the complete reinstallation of the entire branch pipe.

[0003] The traditional construction method is to temporarily position the water-flowing tee on the main pipe by spot welding, and then spot weld the entire branch pipe and system during installation, and adjust while installing until the entire pipeline is in place, and then fully weld the pipe. The positioning defects of the pipe fittings can only be found after the pipeline is basically installed and the system is formed. At this time, it can only be corrected by disassembling and assembling the pipeline section by section. Although spot welding is used for easy disassembly and assembly, it is still a waste of time and materials, requires a lot of manual collaborative work, and also affects the welding quality.

[0004] Therefore, a positioning tool for the oblique connection pipe fittings in a high-efficiency refrigeration room is needed to optimize the on-site installation process. Summary of the invention

[0005] The present invention is based on the premise of quick assembly and disassembly, and realizes installation with pipe fittings through the built-in bayonet. It is suitable for the location of commonly used pipe fittings in high-efficiency refrigeration rooms such as water-following tees and 45-degree bends, especially the precise positioning of the pipe opening direction. The operation is simple, rework is avoided, and construction efficiency is improved.

[0006] The present invention solves the above technical problems through the following technical solutions:

[0007] The present invention provides a positioning tool for obliquely connected pipe fittings in a high-efficiency refrigeration room, which is characterized in that it includes a positioner, a target device, and an auxiliary device. The positioner includes a positioning circular plate, a laser emitter is installed at the top center position of the positioning circular plate, and a first inner circle snap-in composed of a plurality of circularly arranged snap-ins and a first outer circle snap-in composed of a plurality of circularly arranged snap-ins are welded to the bottom of the positioning circular plate. The first inner circle snap-in and the first outer circle snap-in are arranged in concentric circles.

[0008] The target device includes a target circular plate, a small hole for aligning with the laser emitted by the laser emitter is opened at the top center position of the target circular plate as the target bull's eye, a second inner circle snap-in composed of a plurality of circularly arranged snap-ins and a second outer circle snap-in composed of a plurality of circularly arranged snap-ins are welded to the bottom of the target circular plate, and the second inner circle snap-in and the second outer circle snap-in are arranged in concentric circles.

[0009] The auxiliary device includes a platform for temporarily fixing pipe fittings, a telescopic rod and a base. The platform is welded on the top of the telescopic rod and the base is welded on the bottom. The platform includes a platform circular plate. The top of the platform circular plate is welded with a third inner circle snap-in composed of a plurality of circularly arranged snap-ins and a third outer circle snap-in composed of a plurality of circularly arranged snap-ins. The third inner circle snap-in and the third outer circle snap-in are arranged in concentric circles.

[0010] Preferably, the telescopic rod comprises a DN100 steel pipe with a length of 1m and a DN50 steel pipe with a length of 1.5m, the lower part of the DN50 steel pipe is placed in the DN100 steel pipe, and the two side walls of the DN100 steel pipe are respectively penetrated with fastening screws to fasten the DN50 steel pipe.

[0011] Preferably, the base is two cross-fixed channel steels.

[0012] Preferably, the positioning circular plate is made of a steel plate with a thickness of 2 mm and a circular shape with a diameter of 350 mm. The diameter of the first inner ring bayonet is 200 mm, and the diameter of the first outer ring bayonet is 324 mm.

[0013] Preferably, each of the first inner ring bayonet, the second inner ring bayonet and the third inner ring bayonet is relatively long, and each of the first outer ring bayonet, the second outer ring bayonet and the third outer ring bayonet is relatively short.

[0014] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present invention.

[0015] The positive and progressive effects of the present invention are:

[0016] This tool ensures accurate positioning of pipe fittings and enables one-step installation of pipelines, replacing the traditional process of "making changes while doing" or even "making first and then turning over", saving a lot of construction time and labor costs, avoiding dismantling and modification and greatly improving construction quality.

[0017] This tool can be used in both the normal installation method and the reverse installation method, and has a wide range of applications.

[0018] The tool has a simple design and is made of locally available materials, so it is easy to manufacture.

[0019] This tool is easy to operate and requires little labor.

[0020] The connection of this tool adopts a bayonet design, which is easy to disassemble and assemble. The inner ring bayonet is longer and can be directly embedded in the pipe mouth of DN200 pipe fittings. At the same time, the length is only 50mm, which can also firmly fix shallow-mouth pipe fittings such as 45-degree bends. The outer ring bayonet is shorter and is sleeved on the outer diameter of DN300 pipe fittings. Although the length is 30mm, it can be tightly clamped and is not easy to fall off during use.

[0021] The tool has a simple shape and a firm structure and can be reused in traditional construction environments.

[0022] The size of the invention can be adjusted according to the needs of the project. The inner and outer ring design is suitable for pipes of two sizes, which can meet the positioning requirements of the obliquely connected pipes in the efficient machine room. The auxiliary device can be telescopically adjusted to facilitate elevation adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Schematic diagram of the structure of a positioner according to a preferred embodiment of the present invention.

[0024] Figure 2 Schematic diagram of the structure of the target device of a preferred embodiment of the present invention.

[0025] Figure 3 It is a schematic structural diagram of an auxiliary device according to a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] like Figure 1-3 As shown, this embodiment provides a positioning tool for obliquely connected pipes in a high-efficiency refrigeration room, which includes a positioner 10, a target device 20, and an auxiliary device 30.

[0028] The positioner 10 includes a positioning circular plate 11, a laser emitter 12 is installed at the top center position of the positioning circular plate 11, and a first inner circle snap-in 13 consisting of a plurality of circularly arranged snap-ins and a first outer circle snap-in 14 consisting of a plurality of circularly arranged snap-ins are welded to the bottom of the positioning circular plate 11. The first inner circle snap-in 13 and the first outer circle snap-in 14 are concentrically arranged.

[0029] The positioning circular plate 11 is made of 2mm thick steel plate and is 350mm in diameter. A green laser emitter 12 is installed at the top center of the positioning circular plate 11, and a bayonet made of 2mm thick steel plate is installed at the bottom. It is divided into 2 groups, which are arranged in a circular array in two concentric circles with a diameter of 200mm and a diameter of 324mm. The outer circle (the first outer circle bayonet 14) has 4 bayonet lengths of 30mm, and the inner circle (the first inner circle bayonet 13) has 4 bayonet lengths of 50mm. The design of the inner and outer circles can be used for pipe diameters of DN200 and DN300.

[0030] The target device 20 includes a target circular plate 21, a small hole 22 for aligning with the laser emitted by the laser emitter 12 is opened at the top center position of the target circular plate 21 as the target bull's eye, and a second inner circle snap-in 23 composed of a plurality of circularly arranged snap-ins and a second outer circle snap-in 24 composed of a plurality of circularly arranged snap-ins are welded to the bottom of the target circular plate 21, and the second inner circle snap-in 23 and the second outer circle snap-in 24 are arranged in concentric circles.

[0031] The auxiliary device 30 includes a platform 31 for temporarily fixing pipe fittings, a telescopic rod 32 and a base 33. The platform 31 is welded on the top of the telescopic rod 32 and the base 33 is welded on the bottom. The platform 31 includes a platform circular plate 311. The top of the platform circular plate 311 is welded with a third inner circle snap-in 312 consisting of a plurality of circularly arranged snap-ins and a third outer circle snap-in 313 consisting of a plurality of circularly arranged snap-ins. The third inner circle snap-in 312 and the third outer circle snap-in 313 are arranged in concentric circles.

[0032] The telescopic rod 32 includes a DN100 steel pipe 321 with a length of 1m and a DN50 steel pipe 322 with a length of 1.5m. The lower part of the DN50 steel pipe 322 is placed in the DN100 steel pipe 321 and is telescopic. The two side walls of the DN100 steel pipe 321 are respectively penetrated with fastening screws 323 to fasten the DN50 steel pipe 322.

[0033] The base 33 is two cross-fixed channel steels.

[0034] After the pipe is fixed on the platform, the horizontal position, elevation and direction of the pipe opening are adjusted by moving the auxiliary device 30 and the telescopic rod 32 to achieve spatial positioning.

[0035] The new pipe positioning tool is composed of a positioner 10, a target 20, and an auxiliary 30. The main bodies of the three are designed with inner and outer rings, corresponding to the two pipe diameters of DN200 and DN300. The inner ring has a longer bayonet, which can be directly embedded in the pipe mouth of the DN200 pipe, and the outer ring has a shorter bayonet, which is directly sleeved on the outer diameter of the DN300 pipe when in use.

[0036] Two points in three-dimensional space determine a line to achieve spatial docking of two pipe fittings.

[0037] During the construction of the upright method, a locator 10 is installed on the branch side of the water tee on the main pipe, and the 45-degree bend on the branch riser system is fixed on the auxiliary device 30, and the target device 20 is installed on the other end. Since the branch section has not yet been constructed, refer to the orientation, elevation and direction of the pipe fittings in the drawings or BIM models, and locate it on site through the auxiliary device 30. Turn on the laser transmitter 12, rotate the water tee vertically along the center line of the main pipe, and adjust the direction of its branch side until the laser passes through the target center 22 of the target device and aligns. At this time, the positioning of the water tee is completed, and then the installation and construction are carried out in the order of connecting the miter branch pipe, 45-degree bend, and riser to the equipment section by section.

[0038] When the reverse installation method is used, the construction sequence is reversed. Start the branch pipe project from the equipment end, install the locator 10 at the 45-degree bend on the branch pipe riser, install the target device 20 on the branch pipe side of the main pipe along the water tee, turn on the laser transmitter 12, turn the 45-degree bend horizontally along the center line of the branch pipe riser, adjust the direction of its pipe mouth, until the laser passes through the target bull's eye 22 of the target device, at this time, the pipe mouth centers of the two pipes are aligned, the 45-degree bend positioning is completed, install the branch pipe, and connect the main pipe with a miter.

[0039] Although the specific embodiments of the present invention are described above, those skilled in the art should understand that these are only examples, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A positioning tool for oblique connection pipe fittings in high-efficiency refrigeration room, characterized in that: It includes a locator, a target device, and an auxiliary device. The locator includes a positioning circular plate. A laser emitter is installed at the top center of the positioning circular plate. A first inner ring bayonet consisting of a plurality of bayonet holes arranged in a circular shape and a first outer ring bayonet consisting of a plurality of bayonet holes arranged in a circular shape are welded to the bottom of the positioning circular plate. The first inner ring bayonet and the first outer ring bayonet are arranged in concentric circles. The target device comprises a target circular plate, a small hole for aligning with the laser emitted by the laser emitter is opened at the top center of the target circular plate as the target bull's eye, a second inner ring bayonet consisting of a plurality of bayonet arranged in a circle and a second outer ring bayonet consisting of a plurality of bayonet arranged in a circle are welded to the bottom of the target circular plate, and the second inner ring bayonet and the second outer ring bayonet are arranged in concentric circles; The auxiliary device includes a platform for temporarily fixing pipe fittings, a telescopic rod and a base. The platform is welded on the top of the telescopic rod and the base is welded on the bottom. The platform includes a platform circular plate. The top of the platform circular plate is welded with a third inner circle snap-in composed of a plurality of circularly arranged snap-ins and a third outer circle snap-in composed of a plurality of circularly arranged snap-ins. The third inner circle snap-in and the third outer circle snap-in are arranged in concentric circles.

2. The positioning tool for the oblique connection pipe fittings in a high-efficiency refrigeration room according to claim 1, characterized in that: The telescopic rod comprises a DN100 steel pipe with a length of 1m and a DN50 steel pipe with a length of 1.5m. The lower part of the DN50 steel pipe is placed in the DN100 steel pipe. The pipe walls on both sides of the DN100 steel pipe are respectively provided with fastening screws to fasten the DN50 steel pipe.

3. The positioning tool for the oblique connection pipe fittings in a high-efficiency refrigeration room according to claim 1, characterized in that: The base is two cross-fixed channel steels.

4. The positioning tool for the oblique connection pipe fittings in a high-efficiency refrigeration room according to claim 1, characterized in that: The positioning circular plate is made of a steel plate with a thickness of 2 mm and a circular shape with a diameter of 350 mm. The diameter of the first inner ring bayonet is 200 mm, and the diameter of the first outer ring bayonet is 324 mm.

5. The positioning tool for the oblique connection pipe fittings in a high-efficiency refrigeration room according to claim 1, characterized in that: Each of the first inner ring bayonet, the second inner ring bayonet and the third inner ring bayonet is relatively long, and each of the first outer ring bayonet, the second outer ring bayonet and the third outer ring bayonet is relatively short.

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