CN222044861U - A connection device for an exhaust duct - Google Patents

Abstract

The utility model discloses an exhaust passage connecting device which comprises a connecting piece for connecting an upper exhaust passage and a lower exhaust passage and a bracket for fixing the connecting piece to a floor plate, wherein at least one outer side surface of the upper exhaust passage and at least one outer side surface of the lower exhaust passage are opposite to a wall body when the upper exhaust passage and the lower exhaust passage are arranged on floors, the connecting piece comprises a bearing plate, an outer template and an inner template, and the outer template only exists on the outer side edge of the bearing plate which corresponds to the outer side surface of the lower end of the upper exhaust passage, opposite to the wall body, when the upper exhaust passage and the lower exhaust passage are arranged. The utility model can accurately position the upper exhaust passage to the upper port of the lower exhaust passage, allows the upper exhaust passage to be installed from the side surface, can block the gap of the non-wall, can effectively avoid the problems of air leakage and oil seepage at the joint of the exhaust passages, and can advantageously reduce the exhaust resistance caused by the cementing agent entering the exhaust passage.

Description

Connecting device for exhaust passage

Technical Field

The utility model relates to the field of building construction, in particular to a connecting device for an exhaust passage.

Background

In residential or commercial buildings, rooms requiring exhaust, such as kitchens and toilets, are often connected to a public exhaust duct or an outdoor space so as to exhaust smoke or turbid air into the exhaust duct or the outdoor space through an exhaust device, such as a smoke ventilator or an exhaust fan. For multi-story buildings, one exhaust duct is typically used per story. According to the residential exhaust passage 07J916-1, the interfaces of the exhaust passages of the upper layer and the lower layer are positioned at the floor slab and between floors and are in butt joint with a flat port; the upper exhaust passage is supported on the reinforced concrete floor surface by angle steel or round steel; the joint of the exhaust passage is sealed by polymer mortar; after the exhaust passage is installed in place, sealing and filling the gap twice by using C20 fine stone concrete, and performing waterproof treatment; the joint of the exhaust passage is tightly sealed and smoothed by adopting 1:3 cement mortar (1 volume cement: 3 volume sand) close to the wall surface (specifically shown in figures 1,2 and 3). However, the process is difficult to align the upper layer exhaust passage and the lower layer exhaust passage, the mortar at the joint is less, the gap at the wall is narrow, the mortar is difficult to pour, and the like, so that the air leakage and oil seepage conditions at the joint of the exhaust passages still exist at present.

Chinese patent CN109555293a proposes an oil-seepage-proof joint device for an indoor kitchen exhaust duct of a residence, wherein an upper socket embedded with an annular elastic rubber ring is connected with the lower end of the exhaust duct, then a weather-proof sealant is used to seal the joint between the upper socket and the upper exhaust duct, then a lower socket is inserted into the upper end of the lower exhaust duct and is temporarily fixed, a narrow gap between the exhaust duct and a wall is plugged by injecting a foaming glue into a long rubber pipe by using a foaming glue injection gun, and the joint between the upper and lower exhaust ducts and a non-adjacent wall surface is plugged by using polymer mortar. Compared with the traditional process, the joint device in the process has more complicated using steps, and adopts various materials and tools with higher cost, such as an elastic rubber ring, weather-proof sealant, foaming glue, an injection gun and the like; meanwhile, although the foam rubber is injected into a narrow gap between the exhaust passage and the wall body by adopting a foam rubber injection gun extension rubber tube, the leakage and oil seepage caused by the loose blocking still exist.

Accordingly, there remains a need for improved exhaust passage adapter devices that address the above-described issues.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a connecting device and a connecting method for an exhaust passage. Specifically, the present utility model provides the following technical solutions.

The utility model provides an exhaust passage connecting device which comprises a connecting piece for connecting an upper exhaust passage and a lower exhaust passage and a bracket for fixing the connecting piece to a floor plate, wherein at least one outer side surface of the upper exhaust passage and at least one outer side surface of the lower exhaust passage are opposite to a wall body when the upper exhaust passage and the lower exhaust passage are arranged on floors, and the connecting piece comprises a supporting plate, an outer template and an inner template; the bearing plate is provided with a shape matched with the lower end face of the upper exhaust passage or the upper end face of the lower exhaust passage when in installation; the outer template is formed by extending the outer side edge of the bearing plate upwards, and only exists on the outer side edge of the bearing plate corresponding to the outer side edge of the upper exhaust passage, which is opposite to the wall body when the installation is performed, at the lower end of the upper exhaust passage; the inner template is formed by extending the inner side edge of the supporting plate downwards, and exists on the inner side edge of the supporting plate corresponding to the inner side surface of the upper end of the lower exhaust passage when the installation is carried out.

Further, the outer formworks are only present on two adjacent outer sides of the support plate corresponding to the outer sides opposite to the wall body when the lower end of the upper exhaust passage is installed.

Further, the connecting member is arranged such that, when the mounting is performed, the outer die plate is closely attached to the outer side face of the upper layer exhaust passage, and the inner die plate is closely attached to the inner side face of the lower layer exhaust passage.

Further, a first slurry discharging hole is formed in the outer template and used for discharging redundant first cementing agent between the outer side face of the upper exhaust passage and the outer template during installation.

Further, the support plate is provided with a second slurry discharging hole for discharging the redundant first cementing agent between the lower end face of the upper exhaust passage and the support plate during the installation, and the inner template is provided with a first cementing agent preventing the discharge from protruding towards the middle of the lower exhaust passage along the direction perpendicular to the inner side face on the inner side face of the lower exhaust passage.

Further, the bracket includes a stringer for a support connector, the bracket being arranged such that one end of the stringer extends into and is supported on a support preformed hole in the wall and the other end is placed on the floor panel when the installation is performed, and the stringer is arranged to allow excess first cement to drain from the second grout outlet.

Further, the stringers are rebar stringers, angle steel stringers, or channel steel stringers, the slots of the channel steel stringers are opposite the second grout discharge holes for guiding the first cement discharged from the second grout discharge holes to flow along the channel steel stringers and discharge from the end openings of the channel steel stringers.

Compared with the prior art, the exhaust passage connecting device provided by the utility model has at least the following beneficial technical effects:

1. the inner template is inserted into the upper port of the lower exhaust passage, and then the lower port of the upper exhaust passage approaches from the upper side or the upper side and abuts against the bearing plate and the outer template, so that the upper exhaust passage to be connected can be conveniently and accurately positioned to the upper port of the lower exhaust passage.

2. The outer template is only arranged on the wall-leaning side, so that the upper exhaust passage can approach and lean against the bearing plate and the outer template from the position where the outer template is not arranged on the wall-leaning side, and therefore the upper exhaust passage can be hoisted downwards from the upper floor slab and can be installed from the side face of the same floor slab in a basically vertical translation mode, and the upper end of the upper exhaust passage only needs to slightly upwards penetrate out of the exhaust passage installation hole of the upper floor slab.

3. The outer template is only arranged on the side close to the wall, when the size of the upper exhaust passage is larger to a certain extent, one side of the upper exhaust passage can be abutted against the outer template, and the opposite side can extend out of the connecting piece from the side without the outer template of the connecting piece, so that the upper exhaust passage can still be normally installed. In addition, only the outer template is arranged on the wall-leaning side, so that operators can approach and block gaps between the upper exhaust passage and the lower exhaust passage on the non-wall-leaning side in an unobstructed manner, and higher working efficiency and blocking effect can be achieved.

4. When the lower port of the upper exhaust passage approaches from the upper side or the side upper side and abuts against the supporting plate and the outer mold plate, the pre-stacked first cementing agent can be blocked by the outer mold plate and extends upwards along a gap between the outer mold plate and the outer side surface of the exhaust passage, and the sealing of the wall side is enhanced particularly when the sealing is installed from the side upper side, so that the problems of air leakage and oil seepage caused by the fact that the gap of the wall side is narrow and the sealing is not tight in the traditional process are effectively avoided.

5. The connecting piece is fixed on the floor board and the inner template is inserted into the lower exhaust passage, and because the upper exhaust passage is not installed at the moment, an operator can favorably approach and plug the gap between the connecting piece and the lower exhaust passage by using the first cementing agent, and the first cementing agent attached to the inner wall of the lower exhaust passage can be cleaned, so that the plugging effect can be ensured, and the resistance caused by the cementing agent attached to the inner wall of the exhaust passage during exhaust can be reduced.

6. The first slurry discharging holes and the second slurry discharging holes are arranged on the outer template and the bearing plate, and can be used for discharging redundant first cementing agent extruded by the upper layer exhaust passage, so that the first cementing agent can be reduced from entering the exhaust passage from a gap between the bearing plate and the lower end surface of the upper layer exhaust passage, and the exhaust resistance caused by the cementing agent entering the exhaust passage can be reduced.

7. The cementing agent discharged from the first slurry discharge holes of the outer template and the second slurry discharge holes close to the wall body can enter the gap between the exhaust passage and the wall body, so that the gap is favorably blocked.

8. The inner template is arranged and inserted into the upper port of the lower exhaust passage, and the cementing agent discharged from the second slurry discharge hole can flow along the gap between the inner template and the inner side surface of the exhaust passage, so that the protrusion of the cementing agent on the inner wall of the exhaust passage for obstructing the exhaust is reduced.

9. Compared with the process of CN109555293A, the utility model can more effectively solve the problems of air leakage and oil seepage at the joint of the exhaust passage under the condition of adopting traditional materials and tools.

In the description of the present utility model, "substantially" does not exclude the meaning of "complete". Such as a component "substantially free" of Y, or may be completely free of Y. "substantially" may be eliminated from the definition of the utility model, if desired. "comprising" includes both the mentioned factors and allows for the inclusion of additional, uncertain factors. "about", "about" and "about" in the case of the concentration system of each component are +/-5%, +/-4%, +/-3%, +/-2%, +/-1%, +/-0.5% of the index value. "and/or" means that the plurality of terms connected thereby may each be used alone or in any combination with one another.

In the present utility model, examples are generally illustrated by a certain range, but are merely for conciseness and clarity of explanation and are not limiting. The described ranges include subranges as well as all individual values within the range. For example, a range of 1 to 6 includes subranges such as 1 to 3, 1 to 4, 1 to 5, 2 to 4, 2 to 6, 3 to 6, and the like, as well as individual values within the range such as 1, 2, 3, 4, 5, 6.

In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

Drawings

FIG. 1 is a plan view of a prior art exhaust duct construction;

FIG. 2 is a cross-sectional view in the A-A direction of the prior art exhaust passage construction shown in FIG. 1;

FIG. 3 is a B-B cross-sectional view of the prior art exhaust passage construction of FIG. 1;

FIG. 4 is a schematic perspective view of a connector device according to one embodiment of the present utility model;

FIG. 5 is a right side view of the connector device of FIG. 4;

FIG. 6 is a schematic perspective view of a bracket for use with the connector of FIG. 4;

FIG. 7 is a schematic perspective view of another bracket for use with the connector of FIG. 4;

FIG. 8 is a schematic illustration of the mounting of the bracket of FIG. 6 above an underlying stack in stack construction according to the present utility model;

FIG. 9 is a schematic illustration of the mounting of the connector of FIG. 5 to a bracket in an exhaust stack construction according to the present utility model;

FIG. 10 is a schematic view of a process of installing an upper layer exhaust duct on a connection member in the construction of an exhaust duct according to the present utility model;

FIG. 11 is a schematic view showing the result of installing an upper layer exhaust passage on a connection member in the construction of an exhaust passage according to the present utility model;

FIG. 12 is an enlarged view of a portion of FIG. 10;

In the figure:

1-angle steel, 2-reserved hole edges, 3-exhaust ducts, 4-walls, 5-upper exhaust ducts, 6-lower exhaust ducts, 7-polymer mortar joints, 8-reinforced concrete floors, 9-cement mortar layers, 10-facing layers and 11-C20 fine stone concrete;

12-supporting plates, 13-outer templates, 14-gaps, 15-inner templates, 16-first slurry discharge holes, 17-second slurry discharge holes, 18-baffle plates, 19-channel steel longitudinal beams, 20-slurry guide grooves, 21-channel steel cross beams, 22-slurry discharge gaps, 23-angle steel longitudinal beams, 24-round steel cross beams, 25-floor plates, 26-exhaust passage reserved holes, 27-supporting reserved holes, 28-lower exhaust passages and 29-upper exhaust passages.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 4 to 12, an aspect of the present utility model provides an exhaust duct connecting device including a connector for connecting an upper exhaust duct 29 and a lower exhaust duct 28, and a bracket for fixing the connector to a floor panel 25, wherein the upper exhaust duct 29 and the lower exhaust duct 28 have two adjacent outer sides opposite to a wall body 4 when installed on a floor.

The connector comprises a carrier plate 12, an outer die plate 13 and an inner die plate 15. The support plate 12 has a shape that mates with the lower end surface of the upper exhaust passage 29 or the upper end surface of the lower exhaust passage 28 when the mounting is performed. In some cases, the contour of the inner edge of the support plate 12 does not exceed or coincide with the contour of the inner edge of the lower end surface of the upper exhaust passage 29 or the upper end surface of the lower exhaust passage 28; and, the outer edge profile of the supporting plate 12 slightly exceeds or coincides with the inner edge profile of the lower end surface of the upper exhaust passage 29 or the outer end surface of the lower exhaust passage 28.

The outer form 13 is formed by extending upward from the outer side of the support plate 12, and is present only on the outer side of the support plate 12 corresponding to the outer side of the lower end of the upper layer exhaust duct 29 opposite to the wall 4 at the time of the installation. Preferably, the outer formworks 13 are provided at the outer sides of all the support plates 12 corresponding to the outer sides of the lower end of the upper exhaust duct 29 opposite to the wall 4 when the installation is performed. Preferably, the outer formworks 13 are present only on two adjacent outer sides of the support plate 12 corresponding to the outer sides of the upper layer exhaust duct 29 opposite to the wall body 4 when mounted.

The inner die plate 15 is formed by extending downward from the inner side of the support plate 12 and is present on at least part, preferably all, of the inner side of the support plate 12 corresponding to the inner side of the upper end of the lower stack 28 when the installation is performed.

The connection piece is arranged such that, when the installation is performed, the outer formwork 13 is in close contact with the outer side of the upper stack 29 and the inner formwork 15 is in close contact with the inner side of the lower stack 28.

The outer die plate 13 is provided with a first slurry discharging hole 16 for discharging the surplus first cementing agent between the outer side surface of the upper exhaust passage 29 and the outer die plate 13 during the installation. The first binder may be any suitable binder in the art, preferably a polymer mortar for construction.

The support plate 12 is provided with a second slurry discharging hole 17 for discharging the surplus first cement between the lower end face of the upper exhaust passage 29 and the support plate 12 when the mounting is performed, and the inner die plate 15 is provided to prevent the thus discharged first cement from protruding toward the middle of the lower exhaust passage 28 on the inner side face of the lower exhaust passage 28 in the direction perpendicular to the inner side face.

The inner templates 15 are provided with gaps 14 between each other, and the width of the gaps 14 can be determined according to the internal chamfering condition at the corresponding position of the lower exhaust passage 28; in general, the smaller the width of the notch 14, the better the inner die 15 can be inserted into the lower exhaust passage 28 smoothly.

The outer side edges of the second pulp discharge holes 17 extend downwards to form baffle plates 18. In some cases, the baffle 18 is formed by bending down the material forming the second pulp holes 17. In one aspect, the baffle 18 may be used to connect the connector to the bracket; on the other hand, the baffles 18 may also increase the flexural strength of the carrier plate to facilitate the use of thinner sheet material for the connector.

In some cases, the bracket includes stringers for the bearing connectors, the bracket being arranged such that one end of the stringers extends into and bears against the bearing preformed holes 27 in the wall 4 and the other end rests on the floor panel 25 when the installation is made, and the stringers are arranged to allow excess first cement to drain from the second grout outlet 17.

In some cases, as shown in fig. 6, the bracket includes two channel stringers 19 and a channel beam 21 connecting the two channel stringers 19, the channel stringers 19 having a slot opposite the second grout discharge hole 17 for guiding the first cement discharged from the second grout discharge hole 17 to flow along the channel stringers 19 and to be discharged from the end openings of the channel stringers 19. In some cases, a slurry discharging gap 22 is formed on a side wall of the channel beam 21 on a side far away from the lower exhaust passage 28, and at least part of the slurry discharging gap 22 is not blocked by the baffle 18 when the installation is performed, so that the first cementing agent in the channel beam 21 is discharged from the slurry discharging gap 22. In the bracket shown in fig. 6, both the channel beam 19 and the channel beam 21 support the carrier plate 12 during the installation, advantageously increasing the strength and load bearing capacity of the connection.

In some cases, as shown in fig. 7, the bracket includes two angle steel stringers 23 and two round steel beams 24 connecting the two angle steel stringers 23, and the round steel beams 24 do not block the second grout hole 17.

In other cases, the bracket may also comprise only two stringers, for example a channel stringer 19 or an angle stringer 23 or two round steels (not shown).

The method for connecting exhaust passages by using the connecting device comprises the following steps:

S100, providing the exhaust passage connecting device of any one of the above;

S200, fixing the connecting piece at the floor plate 25 where the upper end of the installed lower exhaust passage 28 is located through a bracket, inserting the inner template 15 into the lower exhaust passage 28, filling the gap between the connecting piece and the upper end surface of the lower exhaust passage 28 with a first cementing agent, and stacking the first cementing agent on the upper surface of the bearing plate 12 and the inner side surface of the optional outer template 13;

and S300, the upper exhaust duct 29 to be installed is made to approach the connecting member from above the connecting member or from above the side of the connecting member on the side where the outer mold plate 13 does not exist, and then the lower end of the upper exhaust duct 29 contacts and presses the first cement stacked in step S200 until the upper exhaust duct 29 abuts against the support plate 12 and the outer mold plate 13.

Step S200 further includes: the bracket is first fixed to the floor panel and the space between the bracket and the upper end surface of the lower stack 28 is filled with the first adhesive, and then the connector is attached to the bracket and the inner form 15 is inserted into the lower stack 28.

Step S300 further includes: the extruded first cement is discharged from the second discharge holes 17, and optionally, the extruded first cement is discharged from the first discharge holes 16.

The utility model can accurately position the upper exhaust passage to the upper port of the lower exhaust passage, allows the upper exhaust passage to be installed from the side surface, can block the gap of the non-wall, can effectively avoid the problems of air leakage and oil seepage at the joint of the exhaust passages, and can advantageously reduce the exhaust resistance caused by the cementing agent entering the exhaust passage.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (7)

1. The utility model provides a connecting device for exhaust passage, is including the connecting piece that is used for connecting upper exhaust passage and lower floor's exhaust passage and the bracket that is used for being fixed in the floor with the connecting piece, at least one lateral surface is relative with the wall body when upper exhaust passage and lower floor's exhaust passage are installed in the floor, its characterized in that: the connecting piece comprises a bearing plate, an outer template and an inner template; the bearing plate is provided with a shape matched with the lower end face of the upper exhaust passage or the upper end face of the lower exhaust passage when in installation; the outer template is formed by extending the outer side edge of the bearing plate upwards, and only exists on the outer side edge of the bearing plate corresponding to the outer side edge of the upper exhaust passage, which is opposite to the wall body when the installation is performed, at the lower end of the upper exhaust passage; the inner template is formed by extending the inner side edge of the supporting plate downwards and exists on the inner side edge of the supporting plate corresponding to the inner side surface of the upper end of the lower exhaust passage when the installation is carried out.

2. An exhaust passage coupling device according to claim 1, wherein the outer formworks are present only on two adjacent outer sides of the support plate which, when mounted on the lower end of the upper exhaust passage, face the outer side opposite the wall.

3. An exhaust passage connection according to claim 1, wherein the connection is arranged such that, in the event of the installation, the outer mould plate abuts the outer side of the upper exhaust passage and the inner mould plate abuts the inner side of the lower exhaust passage.

4. The exhaust passage connecting device according to claim 1, wherein the outer die plate is provided with a first slurry discharge hole for discharging surplus first cement between the outer side surface of the upper exhaust passage and the outer die plate when the mounting is performed.

5. An exhaust passage connecting device according to any one of claims 1 to 4, wherein the carrier plate is provided with a second slurry discharge hole for discharging surplus first cement between the lower end face of the upper exhaust passage and the carrier plate at the time of the installation, and the inner die plate is provided with a second slurry discharge hole for preventing the thus discharged first cement from protruding toward the middle of the lower exhaust passage on the inner side face of the lower exhaust passage in a direction perpendicular to the inner side face.

6. An exhaust passage connection according to claim 5, wherein the carrier comprises stringers for supporting the connection, the carrier being arranged such that one end of the stringers extends into and is supported by a support preformed hole in the wall and the other end is placed on the floor panel when the installation is performed, and the stringers being arranged to allow excess first cement to drain from the second grout outlet.

7. The exhaust passage connection of claim 6, wherein the stringers are rebar stringers, angle steel stringers, or channel steel stringers and the slots of the channel steel stringers are opposite the second grout discharge holes for directing the first cement discharged from the second grout discharge holes to flow along the channel steel stringers and discharge from the end openings of the channel steel stringers.