Chamber Box

Abstract

To provide a chamber box that can be used in construction B without replacement for a chamber box installed in construction A, and can be easily changed to settings corresponding to specifications in construction B, thereby contributing to simplifying the work arrangements in construction B, shortening the construction period, and reducing costs. [Configuration] A chamber box that is connected to a duct and used to stably and efficiently branch, merge, and mix gases, and is composed of at least one gas inlet and at least one gas outlet, each of which is equipped with a volume damper, and the chamber box body is provided with an inspection hatch for adjusting the volume damper, with the door of the inspection hatch opening to the inside of the chamber box body.

Description

[Technical Field]

[0001] This invention relates to a chamber box that is connected to a duct installed in a building and is used to stably and efficiently branch, merge, and mix gases, and adjust air volume and temperature. [Background technology]

[0002] Conventionally, chamber boxes have been known that are connected to ducts installed in buildings and placed between ducts. These chamber boxes are used to stably and efficiently branch, merge, and mix gases such as air flowing through the ducts, and to adjust the air volume and temperature.

[0003] For example, in the process of constructing a new building, ducts and chamber boxes are installed in the ceiling or other spaces during the stage of constructing the building's basic structure and equipment (this stage of construction is called "Construction A"). In this A project, chamber boxes etc. are installed to provide air conditioning or ventilation to each room within the building, and basic air conditioning and ventilation equipment is installed within the building.

[0004] On the other hand, when it comes to air conditioning settings, etc., the specifications set in Construction A may need to be changed in response to tenant (lessee) requests. Construction in response to such tenant requests is sometimes called Construction B, and refers mainly to construction on parts of the tenant's exclusive area that affect the entire building.

[0005] In other words, chamber boxes, etc. installed during construction A may need to be re-installed during construction B depending on the specifications required by the tenant, and the chamber boxes, etc. installed during construction A may be removed and new equipment may be installed during construction B.

[0006] In this way, the chamber boxes, etc. installed in Construction A were removed in Construction B, and new chamber boxes, etc. configured to meet the tenant's specifications were installed. This overlapping work made the arrangements for Construction B more cumbersome and complicated, lengthened the construction period, and increased costs. Furthermore, when the tenant moved out, the premises had to be restored to their original condition, which meant that the chamber boxes etc. installed in construction B had to be removed and replaced with the chamber boxes etc. installed in construction A, which was a problem.

[0007] The technology disclosed in Patent Document 1 aims to "provide a chamber box that can be easily replaced and maintained after installation." As a means to solve this problem, a technology has been disclosed that is "a chamber box that communicates with a duct and can accommodate an object to be contained, comprising a first chamber section connected to the duct, and a second chamber section that can communicate with the first chamber section and is detachable from the first chamber section, the second chamber section having an overlapping section that overlaps at least a portion of the first chamber section."

[0008] With the technology disclosed in Patent Document 1, after the chamber box is attached, it can be easily replaced and furthermore, maintenance can be easily performed.

[0009] On the other hand, this does not address the reconfiguration of the chamber box by construction B after construction A mentioned above, and there is a problem that in order to change the chamber box settings, the chamber box needs to be replaced, which does not solve the problems mentioned above. [Prior art documents] [Patent documents]

[0010] [Patent Document 1] Patent Publication No. 2023-80628 Summary of the Invention [Problem to be solved by the invention]

[0011] Therefore, the objective of this invention is to provide a chamber box that can be used in construction B without replacement after being installed in construction A, and that can be easily changed to a setting that corresponds to the specifications in construction B, thereby contributing to simplifying the work arrangements in construction B, shortening the construction period, and reducing costs. [Means for solving the problem]

[0012] The above problem of the present invention is solved by the following configuration.

[0013] 1. A chamber box connected to a duct to stably and efficiently perform branching, merging, and mixing of gases, comprising at least one gas inlet and at least one gas outlet; Each of the gas outlets is provided with a volume damper; The chamber box body is provided with an inspection port for adjusting the volume damper, A chamber box characterized in that the inspection hatch door opens toward the inside of the chamber box body.

[0014] 2. The inspection hatch is located on the side of the chamber box body. 2. The chamber box according to claim 1, characterized in that it is configured to open and close by tilting inward around the bottom side of the chamber box body as an axis.

[0015] 3. A chamber box according to claim 1 or 2, characterized in that the operating unit for operating the movable blades of the volume damper is configured to be operable from inside the chamber box body.

[0016] 4. A chamber box according to claim 1 or 2, characterized in that the chamber box body is formed by assembling panels whose main material is rigid polyurethane foam. [Effects of the Invention]

[0017] According to the invention shown in claim 1, an operator can insert his / her hands or tools through an inspection hatch provided in the chamber box body to access the volume damper provided at the gas outlet, thereby making it possible to change the angle of the volume damper, etc., and adjust the air volume, etc. With this configuration, it is possible to adjust the amount of air that can pass through the airflow outlet without having to replace the chamber box according to the tenant's specifications.

[0018] Furthermore, according to the invention shown in claim 1, the inspection hatch door is configured to open inside the chamber box body, so no external space is required to open the inspection hatch door, and the inspection hatch can be opened and closed even in a small space such as the ceiling where the chamber box and the duct connected to it are installed.

[0019] With these configurations, even if the air conditioning specifications are changed at the request of the tenant, the chamber box installed in construction A can be used in construction B without replacement, and the settings can be easily changed to match the specifications in construction B. This makes it possible to provide a chamber box that can contribute to simplifying the work setup for construction B, shortening the construction period, and reducing costs. Furthermore, since the chamber box installed in construction A can also be used in construction B, there is no need to carry out construction work related to the chamber box when restoring the premises to their original condition when the tenant moves out.

[0020] According to the invention shown in claim 2, the door of the inspection hatch is configured to open and close by tilting inward around the bottom side of the chamber box body as an axis. Therefore, when the inspection hatch is open, the door is tilted inward against the bottom of the chamber box, which does not hinder workers from inserting their hands or tools through the inspection hatch and changing the angle of the volume damper, etc., thereby improving work efficiency.

[0021] According to the invention shown in claim 3, the operating part for operating the movable blades of the volume damper is configured to be operable from inside the chamber box body, so all adjustment work for the volume damper can be performed from the inspection hatch.

[0022] According to the invention described in claim 4, the chamber box body is formed by assembling panels made primarily of rigid polyurethane foam, making it lighter than conventional metal chamber boxes. This reduces the workload associated with installation and the risk of it falling. Furthermore, because the system is assembled on-site, the volume required for transportation and delivery can be reduced, reducing the workload and costs involved in transportation and delivery. [Brief explanation of the drawings]

[0023] [Figure 1] 1 is a schematic diagram illustrating an embodiment of a chamber box according to the present invention; [Figure 2] Schematic diagram showing an example of how the chamber box is installed in a building [Figure 3] Schematic diagram showing an example of a volume damper installed at a gas outlet. [Figure 4] Schematic diagram showing an example of opening and closing an inspection hatch DETAILED DESCRIPTION OF THE INVENTION

[0024] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

[0025] As shown in FIG. 1, the chamber box (hereinafter simply referred to as the “chamber box”) 1 according to the present invention is composed of a chamber box body 2, a gas inlet 3, a gas outlet 4, and an inspection hatch 5. As shown in Figure 2, the chamber box 1 is installed in the ceiling of a building in combination with a duct 6, and is responsible for the air conditioning and ventilation of the building. In particular, the chamber box is used to stably and efficiently branch, merge, and mix the gas flowing inside the duct 6, and adjust the air volume and temperature.

[0026] The chamber box main body 2 is a member that serves as the base of the chamber box 1, and a gas inlet 3, a gas outlet 4, and an inspection port 5 are provided on the surface of this chamber box main body 2. There are no limitations on the configuration of the chamber box body 2, and any known configuration or shape for a chamber box can be used without any particular restrictions. Also, although the shape is shown as rectangular in the drawings, there are known examples of other shapes such as circular, and the chamber box body 2 of the present invention can also use any known shape without any restrictions.

[0027] The gas inlet 3 is an opening for connection to the duct 6, and is provided on the side, top or bottom surface constituting the chamber box main body 2. In particular, it is an opening that is connected to the upstream duct 61 (a duct connected to the gas supply side, mainly outside the building), and allows the gas flowing in the duct 6 to flow into the chamber box 1. In Figure 1, the upstream duct 61 is depicted as having a rectangular cylindrical shape, and therefore the gas inlet 3 is also rectangular, but there is no limitation on the shape, and any shape corresponding to the shape of the upstream duct 61 can be adopted without any particular restrictions.

[0028] The gas outlet 4 is an opening for connection to the duct 6, and is provided on the side, top, or bottom of the chamber box main body 2. In particular, it is an opening that is connected to the downstream duct 62 (a duct connected to the gas discharge side, mainly inside the building), and allows the gas that has flowed into the chamber box 1 to be discharged to the downstream duct 62. In FIG. 1, the downstream duct 62 is depicted as having a cylindrical shape, and therefore the gas outlet 4 is also depicted as having a circular shape, but there is no limitation on the shape, and any shape corresponding to the shape of the downstream duct 62 can be adopted without any particular restriction. The chamber box 1 is configured such that a volume damper 41 is installed at the gas outlet 4, which will be described later.

[0029] The inspection hatch 5 is an opening through which workers or the like can insert their hands or tools to access the inside of the chamber box 1, and is provided on the side, top or bottom surface constituting the chamber box main body 2. It can be opened and closed by an opening and closing door 51. In Figure 2, an inspection hatch T1 is provided in the ceiling panel T below the inspection hatch 5 of the chamber box 1. With this configuration, the inspection hatch T1 in the ceiling is first opened, and then the inspection hatch 5 in the chamber box 1 can be accessed from there, eliminating the need for workers to crawl into the ceiling to perform their work. The specific configuration of this inspection hatch 5 will be described later.

[0030] In implementing this invention, the chamber box body 2 and the duct 6 are preferably formed by assembling plate-shaped panels primarily made of rigid foamed plastic. The rigid foamed plastic is preferably a rigid polyurethane foam, more specifically, a polyisocyanurate foam. Furthermore, by using this rigid foamed plastic as a core material and sandwiching the front and back surfaces between thin aluminum plates or the like, impact resistance, chemical resistance, durability, and the like can be improved.

[0031] These plate-shaped panels are lighter than conventional metal materials, weighing approximately one-fifth of metal (mainly steel) materials and half of glass wool ducts, which improves transportability, ease of installation, and on-site construction.

[0032] It is also preferable to transport and bring in the chamber box body 2 and the duct 6 in the form of the above-mentioned plate-like panels and assemble them at the construction site. By adopting this method, it is possible to improve the ease of transport and delivery to the construction site, and it is also easy to install in narrow spaces such as above the ceiling.

[0033] It should be noted that the chamber box 1 of the present invention is not limited to the materials and assembly means described above, and does not exclude the possibility of it being formed from metal materials such as steel or stainless steel, like conventional chamber boxes, being assembled outside a factory, etc., and then being transported to a construction site and installed.

[0034] Next, the volume damper 41 provided at the gas outlet 4 will be described. Fig. 3 shows an embodiment of the gas outlet 4 and the volume damper 41 installed therein. Fig. 3 is a schematic cross-sectional view of the chamber box 1 from the side (however, the cross-sectional lines are omitted).

[0035] A volume damper is a device that adjusts the volume of air flowing through a duct by changing the angle of movable blades installed in the gas flow path with a manual handle or lever. For example, it is installed in air conditioning systems to equalize the volume of air flow to each room, and is structured to adjust the volume by closing the movable blades when the volume of air is too high, and by opening the movable blades when the volume is too low. In the chamber box 1 according to the present invention, the volume damper 41 is installed at the gas outlet 4 to which the downstream duct 62 is connected.

[0036] Known volume dampers have a variety of movable blade operating means, including worm gear, lever, slide, air cylinder, and wire types. Other types include panker louver types, which have spherical louvers that rotate to freely adjust the airflow direction, electric dampers, which electrically operate the movable blades, and check dampers, which allow gas to flow in one direction while preventing gas from flowing out in the opposite direction, thereby preventing backflow. The volume damper 41 used in the present invention can be any known or used volume damper of this type without any particular restrictions. Two or more types of volume dampers can also be used in combination.

[0037] Many of the known volume dampers exemplified above have a structure in which the movable blades are moved by operating a handle or lever from outside the duct or chamber box, but the volume damper 41 used in the present invention is preferably configured so that the angle of the movable blades can be adjusted from inside the chamber box 1. That is, the volume damper may be configured so that an operating unit such as a handle or lever for adjusting the angle of the movable blades is provided inside the chamber box 1, or it may be configured so that the angle is adjusted by directly operating the movable blades without providing an operating unit such as a handle or lever. By adopting this configuration, all volume damper adjustment work can be performed inside the chamber box, which is accessed through the inspection hatch 5.

[0038] Next, the inspection hatch 5 will be described in detail. Fig. 4 shows an embodiment of the inspection hatch 5. Fig. 4 is a schematic cross-sectional view of the chamber box 1 from the side (however, the cross-sectional lines are omitted). As shown in Figure 4, the inspection hatch 5 is provided in the chamber box main body 2. In Figure 4, the inspection hatch 5 is provided on the side of the chamber box main body 2, but it may be provided on another surface such as the top or bottom surface.

[0039] The inspection hatch 5 is provided with an opening / closing door 51. This opening / closing door 51 allows the inspection hatch 5 to be closed or opened. In order to prevent the gas that has flowed into the chamber box 1 from flowing out from any place other than the gas outlet 4, the opening / closing door 51 is normally kept closed. On the other hand, when work needs to be done inside the chamber box 1, the door 51 is opened and workers can put their hands and tools in through the opened inspection hatch 5. The work mainly involves adjusting the angle of the movable blades of the volume damper 41. It can also be used for cleaning the inside of the chamber box 1, as well as for regular inspections and maintenance.

[0040] The opening and closing door 51 is configured to open inward of the chamber box main body 2. By adopting this configuration, no external space is required to open the opening and closing door 51, and the inspection hatch 5 can be opened and closed even in a small space such as the ceiling where the chamber box 1 and the duct 6 connected to it are installed.

[0041] It is preferable to provide the opening / closing door 51 with a handle 52 to be used when opening and closing the door. In particular, having a handle makes it easier to return the opening / closing door 51 to the inspection hatch 5 after it has been opened and is inside the chamber box 1. It is also preferable to provide a locking mechanism (not shown) to prevent the opening / closing door 51 from being opened unintentionally.

[0042] The opening and closing door 51 is preferably provided on the side of the chamber box main body 2 and is configured to open and close by tilting inward using a shaft 53 provided on the bottom side of the chamber box main body 2. When this inspection hatch 5 is open, the opening and closing door 51 is tilted inward against the bottom of the chamber box main body 2, so that workers can insert their hands or tools through this inspection hatch 5 without being hindered when changing the angle of the volume damper 41, etc., thereby improving work efficiency. Furthermore, as shown in Figure 4, if an inspection hatch T1 is provided in the ceiling panel T below the inspection hatch 5 provided in the chamber box 1, the inspection hatch T1 can be first opened and then the inspection hatch 5 provided in the chamber box 1 can be accessed from there, eliminating the need for workers to crawl into the ceiling to perform their work, thereby improving work efficiency. [Explanation of symbols]

[0043] 1 chamber box 2 Chamber box body 3 Gas inlet 4 Gas outlet 41 Volume Damper 5 Inspection hatch 51 Opening and closing doors 52 Handle 53 axes 6 Duct 61 Upstream duct 62 Downstream duct S slab T Ceiling board T1 Ceiling-mounted inspection hatch B Hanging bolt

Claims

1. A chamber box connected to a duct and used to stably and efficiently branch, merge, and mix gases, comprising at least one gas inlet and at least one gas outlet; Each of the gas outlets is provided with a volume damper; The chamber box body is provided with an inspection port for adjusting the volume damper, A chamber box characterized in that the inspection hatch door opens toward the inside of the chamber box body.

2. The inspection hatch is located on the side of the chamber box body.

2. The chamber box according to claim 1, wherein the chamber box is opened and closed by tilting inward around the bottom side of the chamber box body as an axis.

3. 3. The chamber box according to claim 1, wherein an operating portion for operating the movable blades of the volume damper is configured to be operable from inside the chamber box body.

4. 3. The chamber box according to claim 1, wherein the chamber box body is formed by assembling panels whose main material is rigid polyurethane foam.

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