Positioning caliper for mounting spray header

Abstract

The utility model provides a positioning caliper for spray header installation, which relates to the technical field of spray header installation and comprises an outer ruler and an inner ruler, two ends and one side of the outer ruler and one side of the inner ruler are mutually clamped through bending parts, and balls are arranged between the bending parts of the outer ruler and the inner ruler. The outer ruler and the inner ruler are connected through a plurality of bolts, corresponding through long sliding holes are formed in the outer ruler and the inner ruler in the length direction, the through long sliding holes are used for allowing the bolts to slide, and limiting nuts are arranged at the two ends, located on the outer sides of the outer ruler and the inner ruler, of the bolts. According to the utility model, the engineering accuracy can be greatly improved, secondary adjustment, rework and other losses are reduced, and the engineering quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of spray head installation, in particular to a positioning caliper used for spray head installation. Background Art

[0002] During the construction process, the installation of fire sprinklers and the construction of suspended ceilings are two professional subcontracts, with their own construction organization arrangements and mutual coordination. In the process of the cross-interface construction of the two special projects, the general principle is to stop the mechanical and electrical construction before the installation of the terminal DN25 riser and sprinkler after the installation of the main trunk pipe, trunk pipe, and horizontal branch pipe of the sprinkler system. The suspended ceiling professional begins to determine the position and height of the suspended ceiling according to the design drawings and the actual situation on site. After the suspended ceiling is installed, the commissioning and acceptance of the suspended ceiling are carried out to ensure that the position and height of the suspended ceiling meet the design requirements. After the suspended ceiling is commissioned and accepted, the final installation of the DN25 sprinkler riser and sprinkler head is carried out. This ensures that the position and height of the suspended ceiling have been determined when the sprinkler is installed, avoiding the situation of adjusting the suspended ceiling due to the installation of the sprinkler, but the rework of the sprinkler riser branch still exists.

[0003] Two professional teams are working on the project. Due to the construction site conditions and the quality of the installation workers, there will always be deviations. If they work according to the design drawings, there is a high probability that the branch nozzle position and the ceiling opening position will not match. If it is found that multiple nozzles are not in a straight line, it is necessary to check and adjust the installation position of the sprinkler riser branch and the nozzle. At this time, the ceiling has been installed and inspected. Smaller deviations can be compensated by covering the decorative nozzle protective cover. If there is a slightly larger deviation, the sprinkler installer will need to climb into the ceiling to rework, which will bring great inconvenience and cause huge economic losses. The construction quality is also difficult to guarantee. Summary of the invention

[0004] In view of the above-mentioned prior art, the utility model proposes a positioning caliper for installing a sprinkler head.

[0005] The utility model provides a positioning caliper for installing a sprinkler head, comprising an outer ruler and an inner ruler, wherein both ends and one side of the outer ruler and the inner ruler are engaged with each other through a bending portion, and a ball bearing is arranged between the bending portions of the outer ruler and the inner ruler; the outer ruler and the inner ruler are connected by a plurality of bolts, and corresponding through-length sliding holes are arranged on the outer ruler and the inner ruler along the length direction, and the through-length sliding holes are used for the bolts to slide, and limiting nuts are arranged at both ends of the bolts located on the outer side of the outer ruler and the inner ruler.

[0006] Preferably, a plurality of limiting posts are provided on the outer side of the bent portion at one end of the outer ruler.

[0007] Preferably, both the outer ruler and the inner ruler are provided with a through-length sliding groove for the limiting nut to slide.

[0008] Preferably, the measuring range of the outer ruler and the inner ruler are both 0-4.9m.

[0009] Preferably, the balls are made of stainless steel balls.

[0010] Preferably, the protrusion height of the limiting column is 10 mm.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention provides a positioning caliper for installation of a sprinkler head, which can greatly improve the accuracy of the project, reduce losses such as secondary adjustment and rework, and improve the quality of the project. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a top view schematic diagram of a positioning caliper used for installation of a sprinkler head in an embodiment of the utility model.

[0013] Figure 2 It is a front schematic diagram of a positioning caliper used for installation of a sprinkler head in an embodiment of the utility model.

[0014] In the figure: 1. Outside ruler; 2. Inside ruler; 3. Ball bearing; 4. Limit column; 5. Bolt; 6. Through-length sliding hole; 7. Limit nut; 8. Through-length sliding groove. DETAILED DESCRIPTION

[0015] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific illustrations.

[0016] Example: Figure 1 , 2 The positioning caliper for installing a sprinkler head shown in the figure comprises an outer ruler 1 and an inner ruler 2. The two ends and one side of the outer ruler 1 and the inner ruler 2 are mutually engaged through a bending portion, and a ball 3 is arranged between the bending portions of the outer ruler 1 and the inner ruler 2. The ball 3 is made of stainless steel balls, which is convenient for extension and carrying during use. In order to prevent the inner ruler 2 from slipping, two limit posts 4 are arranged on the outer side of the bending portion at one end of the outer ruler 1. The protrusion height of the limit post 4 is 10mm. The measuring range of the outer ruler 1 and the inner ruler 2 is 0-4.9m.

[0017] Furthermore, the outer ruler 1 and the inner ruler 2 are connected by a plurality of bolts 5, and corresponding through-length sliding holes 6 are provided on the outer ruler 1 and the inner ruler 2 along the length direction, and the through-length sliding holes 6 are used for the bolts 5 to slide left and right, and limiting nuts 7 are provided at both ends of the bolts 5 located on the outside of the outer ruler 1 and the inner ruler 2, and through-length sliding grooves 8 for the limiting nuts 7 to slide are provided on the outer ruler 1 and the inner ruler 2.

[0018] This embodiment is based on the principle of two points determining a straight line. During the installation and construction process, in order to ensure that the later sprinkler heads are installed on a straight line, first adjust the caliper to the direction of the sprinkler heads on a straight line. Align the 0 scale line of the outer ruler 1 with the first sprinkler head position and fix it with the bolts 5 at both ends. Determine the second sprinkler head position according to the sprinkler head spacing of the design drawing, fix it at the second position with the bolts 5 at both ends of the second position, and determine the third sprinkler head position by analogy, and start installing the DN25 vertical pipe branch, and complete the installation of the drooping sprinkler head. After completion, take the ruler to other areas for installation. When the dark transfer of the entire area is completed, the professional decoration workers start the construction. They only need to install the gypsum ceiling with holes opened according to the design drawings, and all the hole positions and sprinkler head positions will be completely matched. They only need to install the decorative cover (no need for sprinkler heads under the ceiling) at the end. In this way, the accuracy of the project is greatly improved, the losses such as secondary adjustment and rework are reduced, and the quality of the project is improved.

[0019] The above are only implementation methods of the present utility model, and are not intended to limit the patent scope of the present utility model. Any equivalent structure made using the contents of the specification and drawings of the present utility model, directly or indirectly used in other related technical fields, are also within the patent protection scope of the present utility model.

Claims

1. A positioning caliper for installing a sprinkler head, characterized in that: It includes an outer ruler and an inner ruler, both ends and one side of which are engaged with each other through a bending portion, and a ball bearing is arranged between the bending portions of the outer ruler and the inner ruler; the outer ruler and the inner ruler are connected by a plurality of bolts, and corresponding through-length sliding holes are arranged on the outer ruler and the inner ruler along the length direction, and the through-length sliding holes are used for the bolts to slide, and both ends of the bolts located on the outside of the outer ruler and the inner ruler are provided with limiting nuts.

2. The positioning caliper for installation of a sprinkler head according to claim 1, characterized in that: A plurality of limiting posts are arranged on the outer side of the bent portion at one end of the outer ruler.

3. The positioning caliper for installation of a sprinkler head according to claim 1 or 2, characterized in that: The outer ruler and the inner ruler are both provided with a full-length sliding groove for the limiting nut to slide.

4. The positioning caliper for installation of a sprinkler head according to claim 1 or 2, characterized in that: The measuring ranges of the outer and inner rulers are both 0-4.9m.

5. The positioning caliper for installing a sprinkler head according to claim 1 or 2, characterized in that: The balls are made of stainless steel balls.

6. The positioning caliper for installation of a sprinkler head according to claim 2, characterized in that: The protrusion height of the limiting column is 10 mm.

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