Combined through-wall sheath

Abstract

The utility model discloses a combined type through-wall sheath which comprises a butt joint seat, two ends of the butt joint seat are respectively connected with a sheath body and a pipe body, and the inner wall of the sheath body is provided with a sealing layer which is usually made of flexible heat preservation cotton and used for filling a gap between a pipeline and the inner wall surface of the sheath body. The butt joint seat is formed by assembling and splicing a first semi-ring and a second semi-ring, and an annular groove is formed in the butt joint seat and used for connecting the sleeve body and the pipe body. A spacer block is arranged in the sleeve body in a sliding mode, the outer contour of the spacer block is attached to the sealing layer, and channels with different diameters are formed so as to adapt to air conditioner pipelines with different diameters. A step is arranged in the sleeve body and makes contact with the outer edge of the spacer block, the position of the spacer block is limited, and sealing failure is avoided. The first semi-ring is provided with a buckle, the second semi-ring is provided with a clamping groove, and when the buckle is inserted into the clamping groove, the strip-shaped protruding structure is tightly extruded and attached to the inner wall of the clamping groove, so that the connection stability is ensured. The second half ring is provided with air holes, the buckle is provided with a slope, and assembling and splicing are convenient. A flexible sleeve is further arranged at one end of the sleeve body and turned inwards in the cavity of the sleeve body to prevent dust from entering.

Description

Technical Field

[0001] The utility model relates to the technical field of wall-penetrating sheaths, in particular to a combined wall-penetrating sheath. Background Art

[0002] During the installation of split-type air conditioners, the pipeline connection between the indoor and outdoor units often needs to pass through the wall through the opening. In order to prevent the pipeline from being scratched by the inner wall of the hole, the traditional method is to wrap the outer surface of the pipeline with tape. In addition, after the installer has completed the installation of the pipeline through the wall, it is necessary to inject a foaming agent into the hole from the outside to fill the gap between the inner wall of the hole and the pipeline, so that the pipeline and the opening of the wall are sealed. The above operation process is relatively cumbersome, and it is considered high-altitude work when the floor is high. In addition to the normal installation of the air conditioner outdoor unit, the installer also needs to fill the foaming agent from the outside, which adds an additional risk factor.

[0003] Therefore, designing a new type of combined wall-penetrating sheath has become an inevitable trend in the development of technology in this field. Utility Model Content

[0004] The utility model aims to provide a combined wall-penetrating sleeve, which can effectively protect pipelines and realize sealing between the pipelines and the openings of the wall.

[0005] The technical solution adopted by the utility model to solve the above problems is: a combined wall-penetrating protective sleeve comprises a docking seat, two ends of the docking seat are respectively connected with a sleeve body and a tube body, and the inner wall of the sleeve body is provided with a sealing layer.

[0006] Preferably, the docking seat comprises a first half ring and a second half ring which are assembled and spliced, a first convex ring is provided at one end of the sleeve body, a second convex ring is provided at one end of the tube body, and an annular groove which is adapted to the first convex ring and the second convex ring is provided in the docking seat.

[0007] Preferably, a spacer is slidably provided in the sleeve body, the outer contour of the spacer is in contact with the sealing layer, and a plurality of channels with different diameters are provided.

[0008] Preferably, a step is provided in the sleeve, and the step is in contact with the outer edge of the spacer.

[0009] Preferably, the first half ring is provided with a buckle, the second half ring is provided with a slot, a strip-shaped protruding structure is provided on the outer side of the buckle, and the protruding structure is pressed and fitted against the inner wall of the slot when the buckle is inserted into the slot.

[0010] Preferably, the second half ring is provided with a vent hole communicating with the card slot, and the buckle is provided with a slope.

[0011] Preferably: a flexible sleeve is further provided at one end of the sleeve body, and the flexible sleeve is inverted in the cavity of the sleeve body.

[0012] Preferably: the tube body adopts a bellows structure.

[0013] Compared with the prior art, the utility model has the following advantages and effects:

[0014] The utility model includes a docking seat, and the two ends of the docking seat are respectively connected to a sleeve body and a pipe body, and the inner wall of the sleeve body is provided with a sealing layer. The sealing layer of the utility model is made of flexible thermal insulation cotton, which is used to fill the gap between the pipeline and the inner wall of the sleeve body. The sealing effect of the sleeve body is achieved through the built-in sealing layer. When installing a high-rise air conditioner, the foaming agent filling step in the traditional air conditioner installation is simplified, the risk of high-altitude operation is reduced, and the installation efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of a combined wall-penetrating sheath according to an embodiment of the utility model.

[0016] Figure 2 It is a cross-sectional view of a combined wall-penetrating sheath according to an embodiment of the utility model.

[0017] Figure 3 It is a connection schematic diagram of a combined wall penetration sheath according to an embodiment of the utility model.

[0018] Figure 4 It is a structural schematic diagram of a docking seat according to an embodiment of the utility model.

[0019] Figure 5 It is a partial enlarged view of the first half ring of the embodiment of the utility model.

[0020] Figure 6 It is a partially enlarged schematic diagram of the second half ring of the embodiment of the utility model.

[0021] Figure numbers: docking seat 1, annular groove 11, sleeve body 2, first convex ring 21, sealing layer 22, step 23, tube body 3, second convex ring 31, first half ring 4, buckle 41, protruding structure 42, slope 43, second half ring 5, groove 51, air vent 52, spacer block 6, channel 61, flexible sleeve 7. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are provided to explain the present invention, but the present invention is not limited to the following examples.

[0023] See also Figure 1 - Figure 6In this embodiment, a combined wall-penetrating protective sleeve is involved, which is specifically used to achieve the wall-penetrating connection of pipelines between indoor and outdoor units when installing an air-conditioning system in a building. It specifically includes: a docking socket 1, and the two ends of the docking socket 1 are respectively connected to a sleeve body 2 and a pipe body 3, and the inner wall of the sleeve body 2 is provided with a sealing layer 22.

[0024] Specifically, in this embodiment, the installer first drills a hole in the wall, and installs the casing 2 (the casing 2 is made of PVC or metal material) in the drilled hole, the pipe body 3 is connected to the docking seat 1, and then the air conditioning pipeline is inserted from the pipe body 3 and passed out from the docking seat 1. The pipeline passes through the wall through the casing 2 to achieve the connection between the internal and external pipelines. The sealing layer 22 in this embodiment is made of flexible thermal insulation cotton, which is used to fill the gap between the pipeline and the inner wall of the casing 2. The sealing effect of the casing 2 is achieved through the built-in sealing layer 22. When installing a high-rise air conditioner, the installer does not need to fill the hole with a foaming agent from the outside, which reduces the risk of high-altitude operations.

[0025] See also Figure 4 - Figure 6 The docking seat 1 includes a first half ring 4 and a second half ring 5 that are assembled and spliced. A first convex ring 21 is provided at one end of the sleeve 2, and a second convex ring 31 is provided at one end of the tube body 3. An annular groove 11 that is adapted to the first convex ring 21 and the second convex ring 31 is provided in the docking seat 1. When installing the sleeve 2, the first convex ring 21 needs to be exposed to the wall surface on the indoor side, and the pipe fitting is sleeved on the indoor section of the air-conditioning pipeline. The second convex ring 31 of the pipe fitting contacts the first convex ring 21. The docking seat 1 is a split design. The first half ring 4 and the second half ring 5 are assembled so that the first convex ring 21 and the second convex ring 31 are inserted into the annular groove 11 of the docking seat 1 after splicing, so that the sleeve 2, the docking seat 1 and the tube body 3 are connected in sequence. The outer diameter of the docking seat 1 in this embodiment should be larger than the wall hole diameter, so that the docking seat 1 can cover the edge of the wall hole, increase the aesthetics, and improve the sealing effect.

[0026] See also Figure 5 The first half ring 4 is provided with a buckle 41, and the second half ring 5 is provided with a slot 51. The outer side of the buckle 41 is provided with a strip-shaped protrusion structure 42. When the buckle 41 is inserted into the slot 51, the protrusion structure 42 is pressed and fitted with the inner wall of the slot 51. During installation, the buckle 41 is pushed into the slot 51, so that the strip-shaped protrusion structure 42 on the buckle 41 is tightly pressed and fitted with the inner wall of the slot 51. The buckle 41 forms a firm lock inside the slot 51 to reduce looseness, thereby ensuring the connection stability between the first half ring 4 and the second half ring 5.

[0027] See also Figure 6The second half ring 5 is provided with an air vent 52 which is in communication with the card slot 51. When the buckle 41 is inserted into the card slot 51, the air in the card slot 51 is discharged through the air vent 52. The buckle 41 is provided with a slope 43, so that the buckle 41 can slide in more smoothly when inserted into the card slot 51, which is convenient for the assembly and splicing of the docking seat 1.

[0028] See also Figure 2 , a spacer block 6 is slidably provided inside the casing 2, the outer contour of the spacer block 6 is in contact with the sealing layer 22, and a plurality of channels 61 with different diameters are provided. The pipelines that need to pass through the wall of the split air conditioner include refrigerant pipes (high pressure and low pressure), drainage pipes, power lines, control lines, fresh air pipes, etc., wherein the outer side of the refrigerant pipe also needs to be wrapped with a layer of insulation sleeve, and the diameters of these air conditioning pipelines are different. The spacer block 6 in this embodiment is made of a flexible material, and its channel 61 can be deformed and enlarged, which is convenient for the air conditioning pipeline to pass through. The outer contour of the spacer block 6 is in contact with the sealing layer 22, so that the gaps between the air conditioning pipelines are correspondingly filled with the spacer block 6, thereby increasing the sealing inside the casing 2.

[0029] The casing 2 is provided with a step 23, and the step 23 contacts the outer edge of the spacer 6. The outer edge of the spacer 6 in this embodiment is made of hard materials such as PVC or metal materials. When the air conditioning pipeline passes through the spacer 6, the spacer 6 is restricted in the casing 2 by the step 23 in the casing 2, which can prevent the spacer 6 from being pulled out of the casing 2 when the pipeline is pulled out of the casing 2, thereby preventing the sealing of the casing 2 from failing.

[0030] A flexible sleeve 7 is also provided at one end of the sleeve 2, and the flexible sleeve 7 is turned inward in the cavity of the sleeve 2. The sleeve 2 is installed from the indoor side and needs to pass through the opening of the wall. When drilling, there will be dust and other impurities on the inner wall of the hole. The flexible sleeve 7 is turned inward in the cavity of the sleeve 2 to form a tight structure, which helps to prevent dust from entering the interior of the sleeve 2 when installing the sleeve 2, thereby keeping the sleeve 2 clean. The opening of the flexible sleeve 7 covers the step 23. After the sleeve 2 is installed, the spacer 6 slides in from the other end of the sleeve 2, so that the opening of the flexible sleeve 7 is clamped by the spacer 6 and the step 23, which increases the sealing of the sleeve 2.

[0031] The pipe body 3 adopts a bellows structure. The installation position of the air conditioner indoor unit is different, and the distance between it and the wall opening is also different. The exposed length of the air conditioning pipeline on the indoor side is also inconsistent. The pipe body 3 with a bellows structure can adjust the length of the pipe body 3 according to the actual situation to meet different installation situations, providing higher installation flexibility.

[0032] The above contents described in this specification are merely examples of the present utility model. Those skilled in the art of the present utility model may make various modifications or additions to the specific embodiments described, or replace them in similar ways, as long as they do not deviate from the contents of the present utility model specification or exceed the scope defined in the claims, they shall all fall within the protection scope of the present utility model.

Claims

1. A combined wall-penetrating sheath, characterized in that: It includes a docking seat, the two ends of which are respectively connected to a sleeve and a tube body, and the inner wall of the sleeve is provided with a sealing layer; the docking seat includes a first half ring and a second half ring that are assembled and spliced, one end of the sleeve is provided with a first convex ring, one end of the tube body is provided with a second convex ring, and an annular groove that is adapted to the first convex ring and the second convex ring is opened in the docking seat.

2. A combined wall-penetrating sheath according to claim 1, characterized in that: A spacer is slidably arranged in the sleeve body, the outer contour of the spacer is fitted with the sealing layer, and a plurality of channels with different diameters are opened.

3. A combined wall-penetrating sheath according to claim 2, characterized in that: The sleeve body is provided with a step, and the step is in contact with the outer edge of the spacer.

4. The combined wall-penetrating sheath according to claim 1, characterized in that: The first half ring is provided with a buckle, the second half ring is provided with a slot, and a strip-shaped protruding structure is provided on the outer side of the buckle. When the buckle is inserted into the slot, the protruding structure is pressed and fitted with the inner wall of the slot.

5. A combined wall-penetrating sheath according to claim 4, characterized in that: The second half ring is provided with a vent hole which is in communication with the clamping groove, and the buckle is provided with a slope.

6. The combined wall-penetrating sheath according to claim 1, characterized in that: One end of the sleeve body is also provided with a flexible sleeve, which is inverted in the cavity of the sleeve body.

7. The combined wall-penetrating sheath according to claim 1, characterized in that: The tube body adopts a bellows structure.

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