CN211011823U

CN211011823U - Central air conditioning outward opening type access door frame

Info

Publication number: CN211011823U
Application number: CN201921861327.2U
Authority: CN
Inventors: 侯东明; 王四海; 张晶轩; 李朝文
Original assignee: Tongfang Refine Energy Saving Technology Co ltd
Current assignee: Tongfang Refine Energy Saving Technology Co ltd
Priority date: 2019-11-01
Filing date: 2019-11-01
Publication date: 2020-07-14
Anticipated expiration: 2029-11-01

Abstract

The utility model discloses a central air-conditioning outward-opening access door frame, which is arranged on a door opening arranged on a panel of a central air-conditioning, and comprises an inner door frame, an outer door frame and a tightening strip, wherein the inner door frame, the outer door frame and the tightening strip are formed by bending metal plates; the cross section of the frame strip of the inner door frame is of a J-shaped structure and comprises an inner pressing plate, an inner frame plate and a clamping plate, wherein the inner frame plate is connected with one end of the inner pressing plate in a bending mode, and the clamping plate is connected with one end of the inner frame plate in a bending mode; the cross section of the tightening strip is of a G-shaped structure, and the tightening strip is fixed between the inner pressing plate and the clamping plate; the cross section of the frame strip of the outer door frame is of a Z-shaped structure and comprises an outer pressing plate, an outer frame plate and a fixed connecting plate, wherein the outer frame plate is connected with one end of the outer pressing plate in a bending mode, and the fixed connecting plate is connected with one end of the outer frame plate in a bending mode; the fixing plate is fixedly connected with the tightening strip through a screw; the inner frame plate and the outer frame plate are embedded in a door opening of the panel; the inner pressing plate and the outer pressing plate respectively clamp the panel of the central air conditioner from two sides.

Description

Central air conditioning outward opening type access door frame

Technical Field

The utility model relates to an air conditioning equipment field especially relates to a central air conditioning outward opening access door frame.

Background

Most of the existing central air conditioners are of an aluminum alloy frame and foam plate structure, and an access door is an essential part. In the combined central air conditioner, the access door of the positive pressure section is an inward opening type, and the access door of the negative pressure section is an outward opening type. The door can be a door frame under the action of air pressure, so that the good effect of the door is not good and the key lies in the design of the door frame. The general access door frame adopts plastic steel or aluminum profile to customize, needs to open the mould in advance according to the installation condition, appears not enough when small batch or nonstandard preparation, and the manufacturing cost of mould is very high.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a central air conditioning open access door frame outward can solve current access door frame and need the die sinking manufacturing to lead to problem with high costs.

The technical scheme of the utility model is realized like this:

a central air conditioner outward opening type access door frame is arranged on a door opening formed in a panel of a central air conditioner and comprises an inner door frame, an outer door frame and a tightening strip, wherein the inner door frame, the outer door frame and the tightening strip are formed by bending metal plates; the cross section of the frame strip of the inner door frame is of a J-shaped structure and comprises an inner pressing plate, an inner frame plate and a clamping plate, wherein the inner frame plate is connected with one end of the inner pressing plate in a bending mode, and the clamping plate is connected with one end of the inner frame plate in a bending mode; the cross section of the tightening strip is of a G-shaped structure, and the tightening strip is fixed between the inner pressing plate and the clamping plate; the cross section of the frame strip of the outer door frame is of a Z-shaped structure and comprises an outer pressing plate, an outer frame plate and a fixed connecting plate, wherein the outer frame plate is connected with one end of the outer pressing plate in a bending mode, and the fixed connecting plate is connected with one end of the outer frame plate in a bending mode; the fixing plate is fixedly connected with the tightening strip through a screw; the inner frame plate and the outer frame plate are embedded in a door opening of the panel; the inner pressing plate and the outer pressing plate respectively clamp the panel of the central air conditioner from two sides.

As a further alternative of the central air conditioner outward opening type access door frame, a plurality of first connecting holes are formed in the fixing plate, second connecting holes corresponding to the first connecting holes are formed in the tightening strip, and the second connecting holes are threaded holes; and fixedly connecting the first connecting hole and the second connecting hole in sequence by using a countersunk head screw, and embedding a nut of the countersunk head screw into the first connecting hole.

As a further alternative of the central air conditioner outward opening type access door frame, sealing cotton is attached to the fixing plate, and covers a nut of the countersunk head screw.

As a further alternative of the central air conditioner outward opening type access door frame, a plurality of third connecting holes are formed in the inner pressing plate, and the inner pressing plate penetrates through the third connecting holes through self-plugging rivets to be riveted with a panel of the central air conditioner.

As a further alternative of the central air-conditioning outward-opening type access door frame, the outer side edges of the inner pressure plate and the outer pressure plate are respectively bent and connected with an anti-warping edge; the anti-warping edge is bent towards the panel by the inner pressing plate or the outer pressing plate.

As a further alternative of the central air-conditioning outward-opening type access door frame, the anti-warping side is bent towards the panel by 5-10 degrees.

As a further alternative of the central air conditioner outward opening type access door frame, the length of the cross section of the anti-warping edge is 3-8 mm.

The beneficial effects of the utility model are that: on the basis of satisfying the stable installation of the door frame, the structure of each component part of the door frame is simplified, each component part of the door frame can be formed by bending a metal plate, so that the door frame is manufactured in a die-casting mode without a die, the step of manufacturing the die is omitted, and the production cost is effectively reduced; on the basis of no restriction of a die, the design of the door frame is more free and can be more suitable for the structure of a non-standard central air-conditioning unit; the whole door frame is simple to assemble and higher in production efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of the outward opening type access door frame of the central air conditioner of the present invention;

FIG. 2 is an exploded view of the outward opening type access door frame of the central air conditioner of the present invention;

FIG. 3 is a sectional view showing the installation of the door frame of the outward opening type access door of the central air conditioner;

fig. 4 is a schematic cross-sectional view of a frame strip of the inner door frame;

FIG. 5 is a schematic cross-sectional view of a frame strip of the take-up strip;

fig. 6 is a schematic cross-sectional view of a frame strip of the outer door frame;

FIG. 7 is a schematic structural view of the tightening strip and the inner door frame;

fig. 8 is a schematic structural view of the anti-warping edge.

In the figure: 100. an inner door frame; 110. an inner pressure plate; 120. an inner frame plate; 130. a clamping and fixing plate; 140. a third connection hole; 200. an outer door frame; 210. an outer pressing plate; 220. an outer frame plate; 230. fixing and connecting the plates; 240. a first connection hole; 300. tightening the strip; 310. a second connection hole; 400. sealing cotton; 5. countersunk head screws; 600. self-plugging rivets; 700. a panel; 800. the edge is prevented from being warped.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "above," and "over" a second feature may mean that the first feature is directly above or obliquely above the second feature, or that only the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1 to 8, there is shown a central air-conditioning outward opening type access door frame which is provided on a door opening formed in a panel 700 of a central air-conditioning, and includes an inner door frame 100, an outer door frame 200, and a tightening strip 300, each of which is formed by bending a metal plate; the cross section of the frame strip of the inner door frame 100 is a J-shaped structure, and comprises an inner pressing plate 110, an inner frame plate 120 bent and connected with one end of the inner pressing plate 110, and a clamping and fixing plate 130 bent and connected with one end of the inner frame plate 120; the cross section of the tightening strip 300 is a G-shaped structure, and the tightening strip 300 is fixed between the inner pressing plate 110 and the clamping plate 130; the cross section of the frame strip of the outer door frame 200 is a Z-shaped structure, and comprises an outer pressure plate 210, an outer frame plate 220 bent and connected with one end of the outer pressure plate 210, and a fixed connection plate 230 bent and connected with one end of the outer frame plate 220; the fixing plate 230 and the tightening strip 300 are fixed by screw connection; the inner frame plate 120 and the outer frame plate 220 are embedded in the door opening of the panel 700; the inner platen 110 and the outer platen 210 clamp the panel 700 of the central air conditioner from both sides, respectively.

Specifically, each component of the door frame, such as the inner door frame 100, the outer door frame 200 and the tightening strip 300, is formed by bending a metal plate; referring to fig. 4 and 7, the inner door frame 100 may be formed by welding a plurality of frame strips, and the cross section of the frame strip of the inner door frame 100 is a J-shaped structure, and includes an inner pressing plate 110, an inner frame plate 120 bent and connected to one end of the inner pressing plate 110, and a fastening plate 130 bent and connected to one end of the inner frame plate 120; referring to fig. 3, 5 and 6 again, the fastening plate 130 is used to fix a tightening strip 300 with a cross section of a G-shaped structure, and after the tightening strip 300 is placed between the inner pressing plate 110 and the fastening plate 130, the tightening strip 300 and the inner door frame 100 are welded; the tightening strip 300 protrudes from the fastening plate 130, and the fastening plate 230 of the outer door frame 200 abuts against the protruding portion of the tightening strip 300 on the fastening plate 130, and the fastening plate 230 and the tightening strip 300 are connected by screws; thus, the inner door frame 100 is coupled to the outer door frame 200.

The outer door frame 200 may also be formed by welding a plurality of frame strips, wherein a sheet metal is bent into a frame strip with a cross section like a Z-shaped structure shown in fig. 6, and then the frame strips are welded into the outer door frame 200, generally speaking, the door frame is square, and four frame strips are formed and welded to form the outer door frame 200; the inner door frame 100 may be manufactured in the same manner as the outer door frame 200. The tightening strip is bent by a sheet metal to have a G-shaped cross section as shown in fig. 5, and then the tightening strip is placed between the inner pressure plate 110 and the fastening plate 130 and welded thereto.

Therefore, on the basis of meeting the requirement of stable installation of the door frame, the structure of each component part of the door frame is simplified, each component part of the door frame can be formed by bending a metal plate, so that the door frame is manufactured in a die-casting mode without a die, the step of manufacturing the die is omitted, and the production cost is effectively reduced; on the basis of no restriction of a die, the design of the door frame is more free and can be more suitable for the structure of a non-standard central air-conditioning unit; the whole door frame is simple to assemble and higher in production efficiency.

In some specific embodiments, in order to make the structure of the door frame more beautiful, referring to fig. 3, 5 and 6, a plurality of first connection holes 240 are provided on the fixing plate 230, a second connection hole 310 corresponding to the first connection hole 240 is provided on the tightening strip 300, and the second connection hole 310 is a threaded hole; the first connection hole 240 and the second connection hole 310 are fixedly connected in sequence by using a countersunk head screw 5, and a nut of the countersunk head screw 5 is embedded in the first connection hole 240. In addition, a sealing cotton 400 is adhered to the fixing plate 230, and the sealing cotton 400 covers the nut of the countersunk head screw 5. Therefore, on one hand, the countersunk head screw 5 is hidden, and the connecting structure of the door frame can not be seen from the outside, so that the door frame is more attractive; on the other hand, when the access door abuts against the outer door frame 200, the sealing cotton 400 can increase the sealing property between the access door and the outer door frame 200. Wherein the first connection hole 240 is a counter-bore or a counter-bore.

In some specific embodiments, in order to make the installation between the door frame and the panel 700 of the central air conditioner more stable and to adapt to the aesthetic appearance of the installed door frame, referring to fig. 3 and 4, a plurality of third connection holes 140 are provided on the inner pressure plate 110, and the inner pressure plate 110 is riveted with the panel 700 of the central air conditioner by blind rivets 600 passing through the third connection holes 140. Specifically, the panel 700 of the general central air conditioner is filled with a foaming material, holes are formed in the panel 700, and then the connection between the inner pressure plate 110 and the panel 700 is reinforced by the blind rivet 600; the blind rivet 600 is disposed on the inner pressing plate 110, and after the door frame is mounted, any mounting structure cannot be seen from the direction of the outer door frame 200, so that the door frame is more attractive.

In some embodiments, in order to prevent the inner pressing plate 110 and the outer pressing plate 210 from tilting after the door frame is used for a long time, referring to fig. 3, 4, 6 and 8, the outer edges of the inner pressing plate 110 and the outer pressing plate 210 are bent and connected with an anti-warping edge 800; the anti-warping edge 800 is bent toward the panel 700 at the inner platen 110 or the outer platen 210. More specifically, the anti-warping edge 800 is bent towards the panel 700 by 5 degrees to 10 degrees; the length of the cross section of the anti-warping edge 800 is 3-8 mm. Thus, the edge of the inner platen 110 or the outer platen 210 may be effectively prevented from being tilted.

In addition, in order to prevent the door frame from being cut, the corner positions of the inner door frame 100 and the outer door frame 200 may be rounded or chamfered.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A central air conditioner outward opening type access door frame is arranged on a door opening formed in a panel of a central air conditioner and is characterized in that the door frame comprises an inner door frame, an outer door frame and a tightening strip, wherein the inner door frame, the outer door frame and the tightening strip are formed by bending metal plates; the cross section of the frame strip of the inner door frame is of a J-shaped structure and comprises an inner pressing plate, an inner frame plate and a clamping plate, wherein the inner frame plate is connected with one end of the inner pressing plate in a bending mode, and the clamping plate is connected with one end of the inner frame plate in a bending mode; the cross section of the tightening strip is of a G-shaped structure, and the tightening strip is fixed between the inner pressing plate and the clamping plate; the cross section of the frame strip of the outer door frame is of a Z-shaped structure and comprises an outer pressing plate, an outer frame plate and a fixed connecting plate, wherein the outer frame plate is connected with one end of the outer pressing plate in a bending mode, and the fixed connecting plate is connected with one end of the outer frame plate in a bending mode; the fixing plate is fixedly connected with the tightening strip through a screw; the inner frame plate and the outer frame plate are embedded in a door opening of the panel; the inner pressing plate and the outer pressing plate respectively clamp the panel of the central air conditioner from two sides.

2. The doorframe of claim 1, wherein the fastening plate is provided with a plurality of first connecting holes, the tightening strip is provided with second connecting holes corresponding to the first connecting holes, and the second connecting holes are threaded holes; and fixedly connecting the first connecting hole and the second connecting hole in sequence by using a countersunk head screw, and embedding a nut of the countersunk head screw into the first connecting hole.

3. The doorframe of claim 2, wherein the fastening plate is adhered with a sealing cotton, and the sealing cotton covers the nut of the countersunk head screw.

4. The central air-conditioning outward opening type access door frame as claimed in claim 1, wherein the inner pressing plate is provided with a plurality of third connecting holes, and the inner pressing plate is riveted with a panel of the central air-conditioning by passing through the third connecting holes through blind rivets.

5. The central air-conditioning outward opening type access door frame as claimed in claim 1, wherein the outer side edges of the inner pressing plate and the outer pressing plate are respectively connected with an anti-warping edge in a bending way; the anti-warping edge is bent towards the panel by the inner pressing plate or the outer pressing plate.

6. The doorframe of claim 5, wherein the anti-warping side is bent 5 ° to 10 ° in the direction of the panel.

7. The door frame of claim 6, wherein the length of the cross section of the anti-warping side is 3-8 mm.