Telescopic adjustable air pipe

Abstract

The utility model relates to the technical field of air pipes, in particular to a telescopic adjustable air pipe. The air duct mainly aims at solving the problems that a spring and a limiting clamping block of a common air duct are located in a fixing pipe, a user needs to insert the arm into a pipeline for adjustment during adjustment, due to blocking of a first telescopic pipe and a second telescopic pipe, the adjustment process is inconvenient, adjustment of the length of the air duct is affected, and meanwhile three pipelines need to be matched, and the adjustment efficiency is high. According to the technical scheme, the telescopic air pipe comprises a first telescopic assembly and is characterized in that the first telescopic assembly comprises an external pipeline, and a second telescopic assembly capable of being adjusted in a telescopic mode is arranged in the external pipeline. The length of the telescopic air pipe can be adjusted, meanwhile, the stability after adjustment is completed is improved, only the first telescopic assembly and the second telescopic assembly need to be matched, cost is reduced, and the purpose of conveniently positioning the movable position of the telescopic air pipe after adjustment is completed is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a duct technology field especially relates to a telescopic regulation duct. BACKGROUND

[0002] The duct plays a vital role in the ventilation and air conditioning system, and the duct is responsible for introducing fresh air from the outside into the room, ensuring indoor air quality, and discharging harmful gases such as indoor waste gas, pollutants and carbon dioxide, and maintaining a healthy indoor environment. Because the common duct is usually fixed as a whole, it is not convenient to adjust the length according to the installation environment, which affects the use.

[0003] Therefore, a rigid telescopic duct is proposed in Chinese patent publication No. CN 220523537 U, which utilizes a fixed pipe to cooperate with the first and second telescopic pipes symmetrically arranged inside to complete length adjustment, and through the elasticity of the first spring and the mutual cooperation of the limiting block, the limiting block is bounced into the clamping groove formed on the inner wall of the fixed pipe, thereby achieving the adjustment and fixation of the first and second telescopic pipes.

[0004] However, the spring and limiting block of this duct are located inside the fixed pipe, so the user needs to insert his arm into the pipe to adjust it, which is not convenient due to the obstruction of the first and second telescopic pipes, affecting the adjustment of the length of the duct, and three pipes are needed to cooperate, increasing the cost. In view of this, we propose a telescopic regulation duct. UTILITY MODEL CONTENT

[0005] The utility model aims at the problems in the background art and proposes a telescopic regulation duct.

[0006] The technical scheme of the utility model: a telescopic regulation duct, including telescopic duct including first telescopic component, its characterized in that: first telescopic component includes external pipeline, the second telescopic component that can be telescopic adjustment is arranged in the external pipeline, second telescopic component includes built-in pipeline, the outer surface wall of built-in pipeline is set with positioning slot, the top and bottom wall of built-in pipeline are symmetrically installed with sliding block, the other end wall of external pipeline is equipped with the positioning assembly that is convenient for the positioning of first telescopic component and second telescopic component activity, positioning assembly includes two-way threaded rod, the upper portion of two-way threaded rod is provided with guide rod, two-way threaded rod and guide rod are symmetrically equipped with vertical plate and movable plate, the bottom wall of movable plate is connected with tight clamp, the end of two-way threaded rod is connected with knob.

[0007] Preferably, a first collar is mounted on one end wall of the external pipeline, and a first screw hole lug is welded on the outer surface wall of the first collar.

[0008] Preferably, the end of the built-in pipeline is provided with a second collar, and a second threaded hole lug is welded on the outer surface wall of the second collar.

[0009] Preferably, symmetrical grooves are formed on the inner surface wall of the external pipeline, and two sliding blocks are symmetrically arranged in the corresponding grooves.

[0010] Preferably, two vertical plates are symmetrically arranged on the other end wall of the external pipeline, symmetrical first rotation holes are formed on the two vertical plates, bearings are arranged in the two first rotation holes, and the two bearings are symmetrically arranged on the outer ring surface of the bidirectional threaded rod.

[0011] Preferably, second rotation holes and threaded holes are formed on the two movable plates, and the bidirectional threaded rod and the guide rod are arranged in the threaded holes and the second rotation holes, respectively.

[0012] Preferably, two clamping jaws are symmetrically arranged, and the inner arc surfaces of the two clamping jaws are tightly attached to the groove walls of the positioning grooves.

[0013] Compared with the prior art, the utility model has the beneficial technical effects that:

[0014] The utility model discloses a telescopic air pipe, which comprises a built-in pipeline, an external pipeline, a first telescopic assembly, a second telescopic assembly and a positioning assembly. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic diagram of telescopic adjustable air pipe.

[0016] Figure 2 It is Figure 1 It is a three-dimensional structure schematic diagram of first telescopic assembly in the utility model.

[0017] Figure 3 It is Figure 1 It is a three-dimensional structure schematic diagram of second telescopic assembly in the utility model.

[0018] Figure 4 It is Figure 1 It is a three-dimensional structure schematic diagram of positioning assembly in the utility model.

[0019] Figure numerals: 1. retractable air duct; 11. first retractable component; 111. external pipe; 112. first sleeve; 113. first screw hole ear; 12. second retractable component; 121. internal pipe; 122. second sleeve; 123. second screw hole ear; 124. slider; 13. positioning component; 131. bidirectional threaded rod; 132. guide rod; 133. vertical plate; 134. movable plate; 135. clamp; 136. knob. DETAILED DESCRIPTION

[0020] The technical solution of the present invention is further described below with reference to the accompanying drawings and specific embodiments.

[0021] Example

[0022] like Figures 1 to 4 As shown, the utility model proposes a telescopic adjustable air duct, including a telescopic air duct 1, the telescopic air duct 1 includes a first telescopic component 11, the first telescopic component 11 includes an external pipe 111, a first sleeve 112 and a first screw hole ear 113, the first sleeve 112 is fixedly installed on the end of the external pipe 111, and a plurality of first screw hole ears 113 are fixedly installed on the outer ring surface of the first sleeve 112 and are distributed in an annular array, which is conducive to assisting the first sleeve 112 in installing and positioning the external pipe 111; a second telescopic component 12 that can be telescopically adjusted is provided in the external pipe 111, the second telescopic component 12 includes an internal pipe 121, a second sleeve 122, a second screw hole ear 123 and a slider 124, the second sleeve 122 is fixedly installed at the end of the internal pipe 121, and a plurality of second screw hole ears 123 are also welded on the outer ring surface of the second sleeve 122 in an annular array. The outer wall of the inner pipe 121 is also hexagonal, and the two are adapted to each other. In addition, the hexagonal arrangement makes it difficult for the inner pipe 121 and the external pipe 111 to rotate, thereby reducing the risk of movement when the inner pipe 121 and the external pipe 111 are connected, and improving the stability of the connection process. The two sliders 124 are symmetrically arranged in the sliding grooves symmetrically opened on the inner wall of the external pipe 111, and the opposite wall bodies of the two sliders 124 are fixedly connected to the outer wall body of the inner pipe 121. With the assistance of the sliding groove, it is beneficial to guide the inner pipe 121 or the external pipe 111 in the telescopic state, and can prevent the inner pipe 121 in the active state from being separated from the external pipe 111, so as to prevent it from affecting subsequent use.

[0023] Further, the other end wall of the external pipeline 111 is provided with a positioning assembly 13 for positioning the active part of the first telescopic assembly 11 and the second telescopic assembly 12. The positioning assembly 13 comprises a bidirectional threaded rod 131, a guide rod 132, vertical plates 133, movable plates 134, clamping rings 135, and knobs 136. The two vertical plates 133 are symmetrically installed on the other end wall of the external pipeline 111. The guide rod 132 is arranged between the two vertical plates 133 and fixedly connected to the opposite wall surfaces of the two vertical plates 133. The guide rod 132 is also arranged in the second through holes symmetrically opened in the two movable plates 134, for guiding the movable plates 134 in the moving state, facilitating the movement of the two clamping rings 135 symmetrically fixedly installed on the bottom wall of the two movable plates 134, and facilitating the subsequent fixing of the active part position of the external pipeline 111 and the internal pipeline 121, preventing the connection from moving after adjustment. The bidirectional threaded rod 131 is arranged in the first through holes symmetrically opened in the two vertical plates 133 and connected to the inner ring surface of the bearing arranged in the first through holes, so that the bidirectional threaded rod 131 is installed on the two vertical plates 133 with the assistance of the bearing and can rotate. The bidirectional threaded rod 131 is also arranged in the threaded holes symmetrically opened in the two movable plates 134, so that the bidirectional threaded rod 131 in the rotating state can drive the two movable plates 134 to move in the same direction or in the opposite direction. The knob 136 is fixedly installed at one end of the bidirectional threaded rod 131, facilitating the user to rotate the bidirectional threaded rod 131. When the two clamping rings 135 move in the same direction, they can be inserted into the positioning grooves opened in the outer surface wall of the internal pipeline 121, so that the inner arc surface of the clamping ring 135 tightly abuts against the groove wall of the positioning groove. The positioning groove blocks the clamping ring 135, fixes the position of the connection between the external pipeline 111 and the internal pipeline 121, and vice versa. The user can adjust the telescopic length of the second telescopic assembly 12 and the first telescopic assembly 11. Since the positioning assembly 13 is externally arranged, the user can directly operate and position, without the need to stretch into the pipeline to adjust, reducing the difficulty of positioning operation. The telescopic length adjustment of the telescopic air pipe 1 is completed by the telescopic movement of the external pipeline 111 and the internal pipeline 121, without the need to install a fixed pipeline at the connection between the two, achieving the purpose of saving cost.

[0024] The above specific embodiments are only several preferred embodiments of the present application. Based on the technical solutions of the present application and the related inspiration of the above embodiments, those skilled in the art can make various alternative improvements and combinations on the above specific embodiments.

Claims

1. A telescopic adjustable air duct comprising a telescopic air duct (1) comprising a first telescopic assembly (11), characterized in that: The first telescopic assembly (11) comprises an external pipeline (111), a second telescopic assembly (12) which can be adjusted in extension and retraction is arranged in the external pipeline (111), the second telescopic assembly (12) comprises an internal pipeline (121), a positioning groove is formed in the outer surface wall of the internal pipeline (121), the top and bottom wall of the internal pipeline (121) is symmetrically provided with a sliding block (124), the other end wall of the external pipeline (111) is provided with a positioning assembly (13) which is convenient for positioning the movable part of the first telescopic assembly (11) and the second telescopic assembly (12), the positioning assembly (13) comprises a bidirectional threaded rod (131), the upper portion of the bidirectional threaded rod (131) is provided with a guide rod (132), the bidirectional threaded rod (131) and the guide rod (132) are symmetrically provided with a vertical plate (133) and a movable plate (134), the bottom wall of the movable plate (134) is connected with a tight clamp (135), the end of the bidirectional threaded rod (131) is connected with a knob (136).

2. The telescoping adjustable air duct of claim 1, wherein, The end wall of the external pipeline (111) is provided with a first ring (112), the outer surface wall of the first ring (112) is welded with a first screw hole lug (113).

3. The telescoping adjustable air duct of claim 1, wherein, The end of the internal pipeline (121) is provided with a second ring (122), the outer surface wall of the second ring (122) is welded with a second screw hole lug (123).

4. The telescoping adjustable air duct of claim 1, wherein, The inner surface wall of the external pipeline (111) is symmetrically provided with a sliding groove, the two sliding blocks (124) are symmetrically arranged in the corresponding sliding grooves.

5. The telescoping adjustable air duct of claim 1, wherein, The other end wall of the external pipeline (111) is symmetrically provided with two vertical plates (133), the two vertical plates (133) are symmetrically provided with a first rotating hole, the two first rotating holes are arranged with a bearing, and the two bearings are symmetrically arranged on the outer ring surface of the bidirectional threaded rod (131).

6. The telescoping adjustable air duct of claim 1, wherein, The two movable plates (134) are provided with a second rotating hole and a threaded hole, and the bidirectional threaded rod (131) and the guide rod (132) are arranged in the threaded hole and the second rotating hole, respectively.

7. The telescoping adjustable air duct of claim 1, wherein, The two tight clamps (135) are symmetrically arranged, and the inner arc surfaces of the two tight clamps (135) are tightly attached to the groove wall of the positioning groove.

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