Steady-flow air return pipe capable of being embedded with capillary tube

Abstract

The utility model discloses a steady flow air return pipe capable of embedding a capillary tube, which relates to the technical field of pipelines and comprises a main pipe body, a placing groove is arranged in the main pipe body, a capillary tube body is arranged in the placing groove, two clamping grooves are arranged in the main pipe body, and a fixing mechanism is arranged on the outer side of the main pipe body. A limiting mechanism is arranged on the outer side of the capillary tube body. According to the steady-flow air return pipe capable of embedding the capillary tube, the capillary tube body can be preliminarily limited by arranging the placing groove, the capillary tube body in the placing groove can be quickly fixed and limited by arranging the clamping groove and the limiting mechanism, and the limiting mechanism and the capillary tube body can be fixed and limited again by arranging the fixing mechanism; and the placement groove, the clamping groove, the fixing mechanism and the limiting mechanism are matched for use, so that the purpose of quickly mounting and nesting the capillary tube body can be achieved, the mounting process is simple, and fixation is easy.

Description

Technical Field

[0001] The utility model relates to the technical field of pipelines, in particular to a steady-flow air return pipe capable of being embedded with a capillary tube. Background Art

[0002] The return air duct in refrigeration equipment often needs to be installed simultaneously with the capillary tube. Existing return air ducts are generally circular. When the capillary tube is assembled, it only fits in a dotted and lined pattern on the outer circle, resulting in a small contact area and a difficult fix. As a piping system, special-shaped pipes are commonly used in engineering, each with its own unique structural characteristics and uses.

[0003] According to patent publication number CN204313686U, a return air pipe capable of embedding a capillary tube includes a main body, which is characterized in that a capillary groove with an outward opening is provided on the wall of the main body, and the opening size of the capillary groove is less than or equal to the diameter of the capillary tube.

[0004] The above solution can solve the problems of small contact area, difficult mutual fixation, and poor heat transfer when the return air duct and capillary tube are installed simultaneously in the heat exchange device. However, the above solution has certain shortcomings in actual use. After the capillary tube is inserted into the capillary tube groove, it needs to be fixed with a fixing strap. However, the process of fixing the capillary tube in the capillary tube groove with the fixing strap requires repeated use of multiple sections of fixing strap. Installing the nested capillary tube is cumbersome, time-consuming, and labor-intensive. To this end, we provide a stable flow return air duct that can be embedded with capillaries to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to make up for the deficiencies of the prior art and to provide a steady-flow air return pipe capable of embedding a capillary tube.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a steady-flow return air pipe in which a capillary can be embedded, comprising a main body, a placement groove is provided inside the main body, a capillary body is provided inside the placement groove, two clamping grooves are provided inside the main body, a fixing mechanism is provided on the outside of the main body, and a limiting mechanism is provided on the outside of the capillary body.

[0007] Furthermore, the limiting mechanism includes a limiting plate, and the outer surface of the limiting plate conflicts with the outer surface of the capillary body, and a pressing convex ball is fixedly connected to the outer surface of the limiting plate.

[0008] Furthermore, a first clamping strip is fixedly connected to the outer surface of the limiting plate, and the first clamping strip is clamped with the clamping groove. A second clamping strip is fixedly connected to the outer surface of the limiting plate, and the second clamping strip is clamped with the clamping groove.

[0009] Furthermore, the fixing mechanism includes a first connecting plate, and the outer surface of the first connecting plate is fixedly connected to the outer surface of the main pipe.

[0010] Furthermore, the internal thread of the first connecting plate is connected to a positioning screw, and the outer surface of the positioning screw is fixedly connected to an adjusting knob.

[0011] Furthermore, the outer surface of the positioning screw is threadedly connected to a second connecting plate, and the outer surface of the second connecting plate is fixedly connected to the outer surface of the limiting plate.

[0012] Compared with the existing technology, the capillary-embedded steady-flow return air duct has the following beneficial effects:

[0013] 1. The utility model can preliminarily limit the capillary body by setting the placement groove, and can quickly fix and limit the capillary body in the placement groove by setting the clamping groove and the limiting mechanism. By setting the fixing mechanism, the limiting mechanism and the capillary body can be fixed and limited again. By the mutual cooperation between the placement groove, the clamping groove, the fixing mechanism and the limiting mechanism, the purpose of quickly installing the nested capillary body can be achieved, and the installation process is simple and easy to fix.

[0014] 2. The utility model can drive the positioning screw to rotate by rotating the adjusting knob clockwise, so that the positioning screw can be screwed into the interior of the first connecting plate and the second connecting plate in turn, thereby achieving a fixed limit between the first connecting plate and the second connecting plate. Similarly, by rotating the adjusting knob counterclockwise, the positioning screw can be driven to be screwed out from the interior of the second connecting plate and the first connecting plate in turn, thereby releasing the limit between the first connecting plate and the second connecting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional front view structure of the utility model;

[0016] Figure 2 It is a partial structural diagram of the utility model;

[0017] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 4 Schematic diagram of the limiting mechanism of the present utility model;

[0019] Figure 5 This is a schematic diagram of the fixing mechanism of the present utility model.

[0020] In the picture:

[0021] 1. Main body; 2. Placement groove; 3. Capillary body; 4. Snap-in groove;

[0022] 5. Fixing mechanism; 501. First connecting plate; 502. Positioning screw; 503. Adjusting knob; 504. Second connecting plate;

[0023] 6. Limiting mechanism; 601. Limiting plate; 602. Pressing convex ball; 603. First clamping strip; 604. Second clamping strip. DETAILED DESCRIPTION

[0024] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0025] This embodiment provides a steady-flow return air duct in which a capillary can be embedded. The utility model can preliminarily limit the capillary body 3 by setting a placement groove 2, and can quickly fix and limit the capillary body 3 in the placement groove 2 by setting a snap-fit ​​groove 4 and a limiting mechanism 6. By setting a fixing mechanism 5, the limiting mechanism 6 and the capillary body 3 can be fixed and limited again. By using the placement groove 2, the snap-fit ​​groove 4, the fixing mechanism 5 and the limiting mechanism 6 in coordination with each other, the purpose of quickly installing the nested capillary body 3 can be achieved, and the installation process is simple and easy to fix.

[0026] See also Figures 1 to 5 A steady-flow return air pipe in which a capillary can be embedded comprises a main body 1, a placement groove 2 is provided inside the main body 1, a capillary body 3 is provided inside the placement groove 2, and the inner diameter of the placement groove 2 is greater than or equal to the capillary body 3, which can achieve the initial rapid limiting effect of the capillary body 3.

[0027] Two engaging grooves 4 are defined inside the main body 1 .

[0028] A first clamping strip 603 is fixedly connected to the outer surface of the limiting plate 601 , and the first clamping strip 603 is clamped to the clamping slot 4 . A second clamping strip 604 is fixedly connected to the outer surface of the limiting plate 601 , and the second clamping strip 604 is clamped to the clamping slot 4 .

[0029] There are two snap-in slots 4, the size of which matches the first snap-in strip 603 and the second snap-in strip 604. The first snap-in strip 603 and the second snap-in strip 604 are made of PVC material, which is elastic. The first snap-in strip 603 and the second snap-in strip 604 can be snapped into the snap-in slot 4, thereby achieving a limiting effect on the first snap-in strip 603 and the second snap-in strip 604.

[0030] A fixing mechanism 5 is provided on the outside of the main body 1 .

[0031] The fixing mechanism 5 includes a first connecting plate 501 , and an outer surface of the first connecting plate 501 is fixedly connected to an outer surface of the main pipe 1 .

[0032] The inner thread of the first connecting plate 501 is connected to a positioning screw 502 , and the outer surface of the positioning screw 502 is fixedly connected to an adjusting knob 503 .

[0033] The outer surface of the positioning screw 502 is threadedly connected to the second connecting plate 504 , and the outer surface of the second connecting plate 504 is fixedly connected to the outer surface of the limiting plate 601 .

[0034] By rotating the adjusting knob 503 clockwise, the positioning screw 502 can be driven to rotate accordingly, so that the positioning screw 502 can be screwed into the interior of the first connecting plate 501 and the second connecting plate 504 in succession, thereby achieving a fixed limit between the first connecting plate 501 and the second connecting plate 504. Similarly, by rotating the adjusting knob 503 counterclockwise, the positioning screw 502 can be driven to be screwed out from the interior of the second connecting plate 504 and the first connecting plate 501 in succession, thereby releasing the limit between the first connecting plate 501 and the second connecting plate 504.

[0035] A limiting mechanism 6 is provided on the outer side of the capillary body 3 .

[0036] The limiting mechanism 6 includes a limiting plate 601 , and the outer surface of the limiting plate 601 contacts the outer surface of the capillary body 3 . A pressing convex ball 602 is fixedly connected to the outer surface of the limiting plate 601 . The pressing convex ball 602 is made of rubber and can protect the palm.

[0037] Place the limiting mechanism 6 on the outside of the capillary body 3, press the limiting plate 601 with a tool or your palm and press it in the direction of the capillary body 3, and insert the first clamping strip 603 and the second clamping strip 604 into the inside of the clamping groove 4. At this time, the outer surface of the limiting plate 601 contacts and presses against the outer surface of the capillary body 3, and the capillary body 3 can be limited.

[0038] Working principle: When the present invention is in use, the capillary body 3 can be inserted into the placement groove 2, and then the limiting mechanism 6 can be placed on the outside of the capillary body 3. The limiting plate 601 can be pressed with a tool or the palm of your hand and pressed in the direction of the capillary body 3 to insert the first clamping strip 603 and the second clamping strip 604 into the inside of the clamping groove 4. At this time, the outer surface of the limiting plate 601 contacts and presses the outer surface of the capillary body 3. Then, by turning the adjusting knob 503 clockwise, the positioning screw 502 can be driven to rotate accordingly, and the positioning screw 502 can be screwed into the inside of the first connecting plate 501 and the second connecting plate 504 in turn, so that the fixed limit between the first connecting plate 501 and the second connecting plate 504 can be achieved. Because the second connecting plate 504 is fixedly connected to the limiting plate 601, the fixed limit effect of the limiting mechanism 6 as a whole can be achieved, thereby achieving a quick fixing effect on the capillary body 3, and the installation is simple and convenient.

[0039] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0040] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A capillary-embedded steady-flow return air duct, comprising a main body (1), characterized in that: A placement groove (2) is provided inside the main body (1), a capillary body (3) is provided inside the placement groove (2), two clamping grooves (4) are provided inside the main body (1), a fixing mechanism (5) is provided on the outside of the main body (1), and a limiting mechanism (6) is provided on the outside of the capillary body (3).

2. The capillary-embedded steady-flow return air duct according to claim 1, characterized in that: The limiting mechanism (6) comprises a limiting plate (601), and the outer surface of the limiting plate (601) is in conflict with the outer surface of the capillary body (3), and a pressing convex ball (602) is fixedly connected to the outer surface of the limiting plate (601).

3. The capillary-embedded steady-flow return air duct according to claim 2, characterized in that: The outer surface of the limiting plate (601) is fixedly connected to a first clamping strip (603), and the first clamping strip (603) is clamped to the clamping slot (4); the outer surface of the limiting plate (601) is fixedly connected to a second clamping strip (604), and the second clamping strip (604) is clamped to the clamping slot (4).

4. The capillary-embedded steady-flow return air duct according to claim 1, characterized in that: The fixing mechanism (5) comprises a first connecting plate (501), and the outer surface of the first connecting plate (501) is fixedly connected to the outer surface of the main body (1).

5. The capillary-embedded steady-flow return air duct according to claim 4, characterized in that: The internal thread of the first connecting plate (501) is connected to a positioning screw (502), and the outer surface of the positioning screw (502) is fixedly connected to an adjusting knob (503).

6. The capillary-embedded steady-flow return air duct according to claim 5, characterized in that: The outer surface of the positioning screw (502) is threadedly connected to the second connecting plate (504), and the outer surface of the second connecting plate (504) is fixedly connected to the outer surface of the limiting plate (601).

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