Air duct butt joint installation auxiliary device

Abstract

The utility model provides an air duct butt joint installation auxiliary device. The air duct butt joint installation auxiliary device comprises a butt joint mechanism located in the middle, positioning assemblies connected to the two sides of the butt joint mechanism in a telescopic mode, and telescopic parts arranged between the butt joint mechanism and the positioning assemblies. The butt joint mechanism comprises a fixing base and locking assemblies arranged at the two ends of the fixing base respectively. The locking assembly comprises two oppositely-arranged locking blocks and a transmission assembly connected to the fixing block, and the transmission assembly is driven to enable the two locking blocks to be relatively close to or away from each other. A limiting space is defined by the two locking blocks, a positioning space is formed in the positioning assembly, and the axis of the positioning space and the axis of the limiting space are arranged in the same straight line. According to the air duct centering device, the axes of the two air ducts can be determined to be in the same straight line, centering is achieved while locking is conducted, and the two air ducts do not need to be subjected to coaxiality adjustment preparation work independently.

Description

A duct connection and installation auxiliary device Technical Field

[0001] This utility model relates to the field of air duct construction technology, and in particular to an auxiliary device for air duct docking and installation. Background Technology

[0002] The existing duct system connection methods mainly adopt combined flange connection and welding. Among them, the combined flange connection has serious air leakage, resulting in excessive air volume loss of the entire system, which cannot meet the air volume requirements and causes serious energy waste. Therefore, it is necessary to add various types of seams, which increases the production cost of the connection structure.

[0003] While welding offers lower production costs, it demands higher skill levels from operators. Before welding, the ductwork needs to be fixed in place, and then the joints are welded. Before welding, the straightness of two adjacent ducts needs to be measured, and the coaxiality of the two ducts needs to be corrected. This increases the preparation steps before duct welding and requires specialized measuring tools and fixing devices, thereby increasing the production cost of duct system construction and severely impacting construction efficiency. Summary of the Invention

[0004] In view of this, the present invention aims to provide an auxiliary device for duct docking and installation, which can achieve the coaxiality and straightness requirements of two docking ducts in one installation, reduce the debugging process, and improve construction efficiency.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0006] A duct docking and installation auxiliary device includes a docking mechanism located in the middle, positioning components telescopically connected to both sides of the docking mechanism, and a telescopic part disposed between the docking mechanism and the positioning components;

[0007] The docking mechanism includes a fixed base and locking components respectively disposed at both ends of the fixed base;

[0008] The locking assembly includes two locking blocks arranged opposite each other, and a transmission assembly connected to the fixed base, which drives the transmission assembly to make the two locking blocks move closer or further apart.

[0009] The two locking blocks form a limiting space, and the positioning component has a positioning space formed on it. The positioning space and the axis of the limiting space are arranged in a straight line.

[0010] Furthermore, the fixing base includes a base plate and a column vertically connected to the corner of the base plate;

[0011] The two sets of locking components are spaced apart along the width direction of the base plate;

[0012] The docking mechanism further includes a first through shaft that passes through the column, and the first through shaft is arranged along the length direction of the base plate.

[0013] The two locking blocks are respectively screwed to both ends of the first through shaft. The first through shaft has first threaded sections with equal pitch and opposite rotation on both sides. The column is also provided with a second through shaft, which passes through the two locking blocks.

[0014] Furthermore, the two locking blocks are respectively screwed to both ends of the second through shaft, and both ends of the second through shaft are provided with second threaded sections with equal pitch and opposite directions of rotation;

[0015] The second thread segment has the same pitch as the first thread segment.

[0016] Furthermore, the transmission assembly includes a drive sprocket connected to one end of the first through shaft, a driven sprocket at one end of the second through shaft, and a double row of sprockets between the driven sprocket and the drive sprocket;

[0017] The double-row sprockets are pivotally connected to the column;

[0018] The driving sprocket and the double-row sprocket, as well as the double-row sprocket and the driven sprocket, are all connected by chain meshing.

[0019] Furthermore, the first through shaft has a crank handle at its end, the crank handle has a hexagonal hole formed inside, the first through shaft has a hexagonal protrusion, and the crank handle is inserted into the first through shaft.

[0020] Furthermore, the upper end of the column is provided with an opening groove, the width of which is adapted to the diameter of the first through shaft;

[0021] The outer side of the column is provided with an internal hexagonal hole, and locking nuts are screwed to both sides of the first through shaft. The internal hexagonal hole is adapted to the shape of the locking nut.

[0022] Furthermore, the positioning assembly includes a positioning seat connected to the telescopic part, a positioning plate disposed on the positioning seat, and an elastic member connected between the positioning seat and the positioning plate;

[0023] The positioning seat has a support groove formed thereon, and the positioning plate is disposed in the support groove in a conformal manner.

[0024] Furthermore, the positioning plate has outwardly folded flanges at both ends, and adjusting bolts are threaded onto the flanges, which are pivotally connected to the positioning seat.

[0025] Furthermore, the positioning seat is provided with a through first positioning hole, and the base plate is provided with a through second positioning hole;

[0026] The first positioning hole and the second positioning hole are provided correspondingly and are arranged along the extension direction of the air duct.

[0027] Compared with the prior art, this utility model has the following advantages:

[0028] The duct splicing and installation auxiliary device of this utility model, by setting up a splicing mechanism and a positioning component, places the joint of two ducts to be spliced ​​on the splicing mechanism. Two spaced-apart locking components clamp the ends of the two ducts. A drive transmission component allows the two locking blocks to move closer or further apart, thereby ensuring that the axes of the two ducts are aligned. Alignment is achieved simultaneously with locking, eliminating the need for separate coaxiality adjustments of the two ducts. Furthermore, due to the connection of the telescopic section, the positioning component and the splicing mechanism are always connected along the extension direction of the telescopic section, ensuring the connection angle between the two ducts. This eliminates the need for measuring rulers and special fixing tools, improving construction efficiency and reducing operating costs.

[0029] In addition, by setting a fixed base as a base plate and a column structure at the corner of the base plate that is vertically connected, the installation auxiliary device can be easily disassembled after the air duct welding is completed, and the air duct can also be placed and taken away, thus improving the convenience of construction. Attached Figure Description

[0030] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0031] Figure 1 is a first-view perspective three-dimensional structural diagram of the air duct docking and installation auxiliary device according to an embodiment of the present utility model;

[0032] Figure 2 is a two-dimensional structural diagram of the air duct docking and installation auxiliary device according to an embodiment of the present invention from a second perspective.

[0033] Figure 3 is a front view structural schematic diagram of the air duct docking and installation auxiliary device according to an embodiment of the present utility model;

[0034] Figure 4 is a left-view structural schematic diagram of the air duct docking and installation auxiliary device according to an embodiment of the present utility model;

[0035] Figure 5 is a magnified view of part I in Figure 2.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. Docking mechanism; 2. Positioning component; 3. Telescopic part;

[0038] 101. Fixing base; 102. Locking assembly; 103. Limiting space; 104. First through shaft; 105. Second through shaft;

[0039] 201. Positioning space; 202. Positioning seat; 203. Positioning plate; 204. Elastic element; 205. Support groove; 206. Adjusting bolt;

[0040] 1011. Base plate; 1012. Column;

[0041] 1021. Locking block; 1022. Transmission assembly; 1023. Locking nut;

[0042] 1041, First thread segment;

[0043] 1051, Second thread segment;

[0044] 2021, First positioning hole;

[0045] 2031, Flipping the edge;

[0046] 10111, Second positioning hole;

[0047] 10121. Opening groove;

[0048] 10221. Drive sprocket; 10222. Driven sprocket; 10223. Double row sprocket; 10224. Crank handle. Detailed Implementation

[0049] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0050] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "back," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0051] Furthermore, in the description of this utility model, unless otherwise explicitly defined, the terms "installation," "connection," "joining," and "connector" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model in light of the specific circumstances.

[0052] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0053] This embodiment relates to an auxiliary device for duct docking and installation. As shown in Figures 1 and 2, the auxiliary device includes a docking mechanism 1 located in the middle, positioning components 2 telescopically connected to both sides of the docking mechanism 1, and a telescopic portion 3 located between the docking mechanism 1 and the positioning components 2. The docking mechanism 1 includes a fixed base 101 and locking components 102 respectively located at both ends of the fixed base 101. The locking components 102 include two opposing locking blocks 1021 and a transmission component 1022 connected to the fixed base 101, driving the transmission component 1022 to move the two locking blocks 1021 closer together or further apart. The two locking blocks 1021 form a limiting space 103. The positioning components 2 have a positioning space 201 formed on them, and the axes of the positioning space 201 and the limiting space 103 are aligned linearly.

[0054] Through the above structural design, the duct docking installation auxiliary device of this embodiment sets the joint of the two ducts to be docked on the docking mechanism 1 by setting the docking mechanism 1 and the positioning component 2. The two locking components 102 are set at intervals to clamp the ends of the two ducts. The drive transmission component 1022 can make the two locking blocks 1021 move closer or further apart, thereby determining that the axes of the two ducts are in a straight line. The centering is achieved at the same time as locking, without the need to make separate coaxiality adjustment preparations for the two ducts.

[0055] In terms of overall structure, as shown in Figures 1 to 4, in this embodiment, due to the connection of the telescopic part 3, the positioning component 2 and the docking mechanism 1 are always connected along the extension direction of the telescopic part 3, ensuring the connection angle between the two air ducts. This eliminates the need for measuring rulers and special fixing tools, improving construction efficiency and reducing operating costs.

[0056] Based on the above general introduction, specifically as shown in Figures 1 and 2, the limiting space 103 between the two locking blocks 1021 in this embodiment is made according to the circular air duct as an example. For other shapes such as rectangular air ducts, the positioning space 201 of the locking block 1021 and the positioning component 2 can be adaptively adjusted according to the shape of the air duct, which will not be described in detail here.

[0057] As a preferred embodiment, as shown in Figures 1 and 2, the fixing base 101 includes a base plate 1011 and a column 1012 vertically connected to the corner of the base plate 1011. Two sets of locking components 102 are spaced apart along the width direction of the base plate 1011. The docking mechanism 1 also includes a first through shaft 104 that passes through and connects to the column 1012. The first through shaft 104 is arranged along the length direction of the base plate 1011. Two locking blocks 1021 are respectively screwed to both ends of the first through shaft 104. The first through shaft 104 has first threaded sections 1041 with equal pitch and opposite rotation directions on both sides. The column 1012 is also provided with a second through shaft 105, which passes through the two locking blocks 1021.

[0058] As shown in Figure 1, the second through shaft 105 prevents the locking block 1021 from rotating. When the first through shaft 104 is driven to rotate, the two locking blocks 1021 move closer or further apart, locking and fixing the air duct to the middle of the two columns 1012. Furthermore, by setting the fixing base 101 as the base plate 1011 and the vertically connected column 1012 at the corner of the base plate 1011, the installation auxiliary device can be easily disassembled after the air duct welding is completed, and the air duct can also be easily placed and removed, improving the convenience of construction.

[0059] Furthermore, as shown in Figures 1 to 4, a second through shaft 105 is also connected through the column 1012, and the second through shaft 105 is arranged parallel to the first through shaft 104 below. Two locking blocks 1021 are respectively screwed to both ends of the second through shaft 105. The two ends of the second through shaft 105 are provided with second threaded sections 1051 with equal pitch and opposite directions of rotation. The pitch of the second threaded section 1051 is equal to that of the first threaded section 1041. Through the above arrangement, the locking force of the locking block 1021 can be improved, so that both the upper and lower parts of the locking block 1021 can lock the air duct, improve the stability of the air duct, ensure the positional accuracy of the two connected air ducts, and ensure effective welding results.

[0060] In this embodiment, as an exemplary implementation, as shown in FIG4, the transmission assembly 1022 includes a drive sprocket 10221 connected to one end of the first through shaft 104, a driven sprocket 10222 at one end of the second through shaft 105, and a double-row sprocket 10223 between the driven sprocket 10222 and the drive sprocket 10221. The double-row sprocket 10223 is pivotally connected to the column 1012. The drive sprocket 10221 and the double-row sprocket 10223, as well as the double-row sprocket 10223 and the driven sprocket 10222, are all connected by chain meshing. This embodiment simultaneously drives the first through shaft 104 and the second through shaft 105 to rotate, thereby driving the two locking blocks 1021 to move and clamp.

[0061] Secondly, for ease of operation, as shown in Figures 1 to 3, a crank handle 10224 is provided at the end of the first through shaft 104. The crank handle 10224 has a hexagonal hole formed inside, and a hexagonal protrusion is provided on the first through shaft 104. The crank handle 10224 is inserted into the first through shaft 104. The setting of the crank handle 10224 can refer to the prior art, and will not be described in detail here.

[0062] In addition, as shown in Figure 5, the upper end of the column 1012 is provided with an opening groove 10121, the width of the opening groove 10121 is adapted to the diameter of the first through shaft 104, the outer side of the column 1012 is provided with an internal hexagonal hole, and the two sides of the first through shaft 104 are screwed with locking nuts 1023, the internal hexagonal hole is adapted to the shape of the locking nut 1023.

[0063] In actual construction, to facilitate the placement of the duct, the second through shaft 105 and locking block 1021 are first connected between the two columns 1012. The upper space is used to place the duct. After the duct is placed, it is first suspended in the limiting space 103 and the positioning space 201, and then the first through shaft 104 is installed. The operator drives the crank 10224 to rotate so that the two locking blocks 1021 lock the duct. Before locking, the joint ends of the two opposing ducts can be manually abutted together to prevent the gap from being too large after locking.

[0064] After the duct is fixed, the joint of the duct is welded circumferentially. After welding, the chain is first disassembled, and then a wrench is used to rotate the second through shaft 105 to disengage it from the locking block 1021 and the column 1012. The second through shaft 105 can be provided with a shoulder for placing the wrench. After the second through shaft 105 is disassembled, the locking nuts 1023 on both sides of the first through shaft 104 are removed, and the first through shaft 104, together with the locking block 1021, can be detached from the column 1012, thus achieving the auxiliary function of welding at the joint. This auxiliary device is easy to install and remove, and can be reused in multiple places, reducing construction costs and improving construction efficiency.

[0065] As a preferred embodiment, as shown in Figures 1 and 2, the positioning component 2 includes a positioning seat 202 connected to the telescopic part 3, a positioning plate 203 disposed on the positioning seat 202, and an elastic member 204 connecting the positioning seat 202 and the positioning plate 203. A support groove 205 is formed on the positioning seat 202, and the positioning plate 203 is disposed within the support groove 205.

[0066] Furthermore, as shown in Figures 1 and 2, the positioning plate 203 has outwardly folded flanges 2031 at both ends, and adjusting bolts 206 are threaded onto the flanges 2031. The adjusting bolts 206 are pivotally connected to the positioning seat 202.

[0067] In this embodiment, the telescopic part 3 is a telescopic steel pipe, which can be a rectangular or round pipe. For ducts that are angled together, the telescopic pipe can be set to the same shape as the angle between the two ducts, thereby playing a positioning role. In actual production, the positioning seat 202 can be set at the other end of the duct, and the positioning plate 203 set on the positioning seat 202 can adjust the overall height of the duct, ensuring the horizontal straightness of the entire duct and further improving the welding effect of the duct.

[0068] Furthermore, to further ensure the positional accuracy and stability of the positioning component 2 and the docking mechanism 1, as shown in Figures 1 and 2, the positioning base 202 is provided with a through first positioning hole 2021, and the base plate 1011 is provided with a through second positioning hole 10111. The first positioning hole 2021 and the second positioning hole 10111 are correspondingly arranged and are arranged along the extension direction of the air duct. Reinforcing bars or optical shafts are inserted into the first positioning hole 2021 and the second positioning hole 10111 to make the connection between the positioning component 2 and the docking mechanism 1 more stable and improve the structural strength of the auxiliary device.

[0069] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A duct connection and installation auxiliary device, characterized in that: The device includes a docking mechanism (1) located in the middle, positioning components (2) telescopically connected to both sides of the docking mechanism (1), and a telescopic part (3) disposed between the docking mechanism (1) and the positioning components (2); the docking mechanism (1) includes a fixed base (101) and locking components (102) respectively disposed at both ends of the fixed base (101); the locking components (102) include two locking blocks (1021) disposed opposite to each other, and a transmission component (1022) connected to the fixed base (101), driving the transmission component (1022) to make the two locking blocks (1021) move closer or further apart; a limiting space (103) is formed between the two locking blocks (1021), and a positioning space (201) is formed on the positioning component (2), the axis of the positioning space (201) and the limiting space (103) are arranged in a straight line.

2. The duct docking and installation auxiliary device according to claim 1, characterized in that: The fixing base (101) includes a base plate (1011) and a column (1012) vertically connected to the corner of the base plate (1011); two sets of locking components (102) are spaced apart along the width direction of the base plate (1011); the docking mechanism (1) further includes a first through shaft (104) that passes through the column (1012), the first through shaft (104) being arranged along the length direction of the base plate (1011); the upper ends of the two locking blocks (1021) are respectively screwed to both ends of the first through shaft (104), and the first through shaft (104) has first threaded sections (1041) with equal pitch and opposite rotation on both sides; the column (1012) is also provided with a second through shaft (105), the second through shaft (105) passing through the two locking blocks (1021).

3. The duct docking and installation auxiliary device according to claim 2, characterized in that: The two locking blocks (1021) are respectively screwed to both ends of the second through shaft (105). The two ends of the second through shaft (105) are provided with second threaded sections (1051) with equal pitch and opposite rotation directions; the second threaded section (1051) has the same pitch as the first threaded section (1041).

4. The duct docking and installation auxiliary device according to claim 3, characterized in that: The transmission assembly (1022) includes a drive sprocket (10221) connected to one end of the first through shaft (104), a driven sprocket (10222) at one end of the second through shaft (105), and a double-row sprocket (10223) between the driven sprocket (10222) and the drive sprocket (10221); the double-row sprocket (10223) is pivotally connected to the column (1012); the drive sprocket (10221) and the double-row sprocket (10223), as well as the double-row sprocket (10223) and the driven sprocket (10222), are all connected by chain meshing.

5. The duct docking and installation auxiliary device according to claim 4, characterized in that: The first through shaft (104) has a crank handle (10224) at its end. The crank handle (10224) has a hexagonal hole formed inside. The first through shaft (104) has a hexagonal protrusion. The crank handle (10224) is inserted into the first through shaft (104).

6. The duct docking and installation auxiliary device according to claim 5, characterized in that: The upper end of the column (1012) is provided with an opening groove (10121), the width of which is adapted to the diameter of the first through shaft (104); the outer side of the column (1012) is provided with an internal hexagonal hole, and locking nuts (1023) are screwed on both sides of the first through shaft (104), the internal hexagonal hole being adapted to the shape of the locking nut (1023).

7. The duct docking and installation auxiliary device according to claim 2, characterized in that: The positioning component (2) includes a positioning seat (202) connected to the telescopic part (3), a positioning plate (203) disposed on the positioning seat (202), and an elastic member (204) connecting the positioning seat (202) and the positioning plate (203); a support groove (205) is formed on the positioning seat (202), and the positioning plate (203) is disposed in the support groove (205).

8. The duct docking and installation auxiliary device according to claim 7, characterized in that: The positioning plate (203) has outwardly folded flanges (2031) at both ends, and adjusting bolts (206) are threaded onto the flanges (2031). The adjusting bolts (206) are pivotally connected to the positioning seat (202).

9. The duct docking and installation auxiliary device according to claim 8, characterized in that: The positioning seat (202) is provided with a through first positioning hole (2021), and the base plate (1011) is provided with a through second positioning hole (10111); the first positioning hole (2021) and the second positioning hole (10111) are provided correspondingly and are arranged along the extension direction of the air duct.

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