Novel hinge structure air supply device expansion joint
By designing a novel hinged structure expansion joint for the air supply device, the problem of stress not being released when the traditional expansion joint bends and deforms the pipe is solved, thus achieving stable operation of the air supply device and airflow delivery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN ZONGNENG TECH CO LTD
- Filing Date
- 2025-05-09
- Publication Date
- 2026-04-10
AI Technical Summary
Traditional expansion joints cannot bend properly when the pipe is bent and deformed because the metal rod restricts the bending, resulting in the inability to effectively release stress and affecting the stable operation of the air supply device.
The air supply device expansion joint adopts a new hinge structure. Through the design of the No. 1 and No. 2 connecting columns and the rotating arm, the No. 2 expansion tube can rotate back and forth at the top of the No. 1 expansion tube and rotate left and right at the bottom, so as to achieve small-scale bending adjustment and release pipeline stress.
Effectively relieves pipeline stress, ensures stable operation of the air supply device and smooth airflow, and prevents pipeline damage due to stress concentration.
Smart Images
Figure CN224107857U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to expansion joint technical field, concretely is a new -type hinge structure air supply device expansion joint. BACKGROUND
[0002] In industrial ventilation, heating, air conditioning and industrial pipeline transportation systems, air supply device is responsible for generating and transporting gas of specific pressure and flow, expansion joint can compensate the thermal expansion and cold shrinkage of pipeline caused by temperature and pressure change to reduce the stress of pipeline, and the two can maintain the balance of system pressure and flow, guarantee the stable and smooth flow of gas, and the expansion joint can also absorb the deformation of pipeline, prevent the damage caused by stress concentration, reduce vibration transmission, and ensure the normal operation of air supply device and stable air flow transportation.
[0003] In the traditional technology, in order to ensure the stability of the expansion joint in the working process, a plurality of metal rods are usually used to limit and fix the expansion joint after the installation is completed, the limiting of the traditional metal rod limits the free bending of the expansion joint in multiple directions, when the pipeline needs to be bent and deformed to a certain extent due to actual conditions, the expansion joint cannot normally bend and adjust due to the limitation of the metal rod, so that the stress in the pipeline cannot be effectively released and buffered, therefore, a new type of hinge structure air supply device expansion joint is particularly proposed to solve the above problems. UTILITY MODEL CONTENT
[0004] In view of the deficiencies of the prior art, the utility model provides a new type of hinge structure air supply device expansion joint to overcome the deficiencies in the prior art.
[0005] In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
[0006] A new type of hinge structure air supply device expansion joint, including a first expansion pipe, the top and bottom of the first expansion pipe are fixedly installed with a second expansion pipe, the left and right sides of the first expansion pipe are fixedly installed with a first connecting column close to the top thereof, the front and rear sides of the first expansion pipe are fixedly installed with a second connecting column close to the bottom thereof, the outer part of the two first connecting columns is rotatably installed with a first rotary arm, the outer part of the second expansion pipe at the top is fixedly installed with an upper fixed ring, the two first rotary arms are fixedly installed at the bottom of the upper fixed ring, the outer part of the two second connecting columns is rotatably installed with a second rotary arm, the outer part of the second expansion pipe at the bottom is fixedly installed with a lower fixed ring, and the two second rotary arms are fixedly installed at the top of the lower fixed ring.
[0007] On the basis of the above technical scheme, the utility model can also be improved as follows.
[0008] Furthermore, flanges are rotatably mounted on the outside of both expansion tubes, with each flange located at one end of the outer side of the two expansion tubes.
[0009] Furthermore, the first expansion tube includes a corrugated tube, with vertical cylinders fixedly installed at the top and bottom of the corrugated tube. Connecting rings are fixedly installed on the outside of the two vertical cylinders. A mating groove is opened on the outside of the two connecting rings. Multiple telescopic rods are arranged between the two connecting rings. Locking components for limiting the multiple telescopic rods are provided on the outside of the two connecting rings.
[0010] Furthermore, the locking assembly includes a stop rings fixedly installed on the top and bottom of multiple telescopic rods. The multiple stop rings are respectively located inside the two connecting rings. Bolts are fixedly installed on the outer sides of the multiple stop rings. The multiple bolts are respectively located inside the multiple mating grooves. Nuts located outside the two connecting rings are threaded onto the outer sides of the multiple bolts.
[0011] Furthermore, the two expansion tubes are respectively fixedly installed on the outside of the two vertical cylinders.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: By using two No. 1 connecting columns, two No. 1 rotating arms are respectively connected to the outside of the No. 1 expansion tube to achieve rotation. The upper fixing ring on the outside of the upper No. 2 expansion tube is connected to the No. 1 rotating arm, so that the upper No. 2 expansion tube can be adjusted to rotate back and forth at the top of the No. 1 expansion tube. At the same time, through the two No. 2 connecting columns, two No. 2 rotating arms are connected to the outside of the No. 1 expansion tube for rotation. The lower fixing ring on the outside of the lower No. 2 expansion tube is connected to the No. 2 rotating arm, so that the lower No. 2 expansion tube can be adjusted to rotate left and right at the bottom of the No. 1 expansion tube. After connecting the two No. 2 expansion tubes to the air supply device, small bending adjustment can be performed, effectively releasing pipeline stress. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of the expansion joint of the novel hinge structure air supply device of this utility model;
[0014] Figure 2 This is a schematic diagram of the exploded structure of the expansion joint of the novel hinge structure air supply device of this utility model;
[0015] Figure 3 This is a schematic diagram showing the connection between the locking assembly and the telescopic rod structure.
[0016] Figure 4 for Figure 2 Enlarged structural diagram at point A in the middle;
[0017] Figure 5 for Figure 2 Enlarged structural diagram at point B.
[0018] The attached diagram lists the components represented by each number as follows:
[0019] 1. Expansion tube No. 1; 2. Expansion tube No. 2; 3. Connecting column No. 1; 4. Connecting column No. 2; 5. Swing arm No. 1; 6. Upper fixing ring; 7. Swing arm No. 2; 8. Lower fixing ring; 9. Flange; 10. Connecting ring; 11. Butt groove; 12. Telescopic rod; 13. Stopping ring; 14. Bolt; 15. Nut. Detailed Implementation
[0020] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.
[0021] Example 1, as Figures 1-2 As shown, a novel hinged structure air supply device expansion joint includes a first expansion pipe 1, a second expansion pipe 2 fixedly installed at the top and bottom of the first expansion pipe 1, a first connecting post 3 fixedly installed near the top on both the left and right sides of the first expansion pipe 1, a second connecting post 4 fixedly installed near the bottom on both the front and rear sides of the first expansion pipe 1, a first rotating arm 5 rotatably installed on the outside of both first connecting posts 3, an upper fixing ring 6 fixedly installed on the outside of the top second expansion pipe 2, both first rotating arms 5 fixedly installed at the bottom of the upper fixing ring 6, a second rotating arm 7 rotatably installed on the outside of both second connecting posts 4, a lower fixing ring 8 fixedly installed on the outside of the bottom second expansion pipe 2, and both second rotating arms 7 fixedly installed on the top of the lower fixing ring 8.
[0022] Two No. 1 rotating arms 5 are connected to the outside of No. 1 expansion tube 1 by two No. 1 connecting columns 3 respectively. After the upper fixing ring 6 installed on the outside of the upper No. 2 expansion tube 2 is connected to the two No. 1 rotating arms 5, the upper No. 2 expansion tube 2 can be restricted to the top of No. 1 expansion tube 1 and rotated back and forth. Two No. 2 rotating arms 7 are connected to the outside of No. 1 expansion tube 1 by two No. 2 connecting columns 4 respectively. After the lower fixing ring 8 installed on the outside of the lower No. 2 expansion tube 2 is connected to the two No. 2 rotating arms 7, the lower No. 2 expansion tube 2 can be restricted to the bottom of No. 1 expansion tube 1 and rotated left and right. After the two No. 2 expansion tubes 2 are connected to the air supply device, they can be bent and adjusted in a small range, so that the pipeline stress can be effectively released.
[0023] Example 2, as Figures 1-2 As shown, this embodiment is a further improvement based on embodiment 1, and its specific details are as follows:
[0024] Both expansion tubes 2 are rotatably mounted with flanges 9 on their exteriors, with the two flanges 9 located at one end of the outer side of each expansion tube 2.
[0025] In this way, the two flanges 9 are convenient for connecting with the air supply device outside.
[0026] Embodiment 3, as shown in the figure, is a further improvement based on embodiment 1, which is as follows: Figures 1-2
[0027] The first expansion pipe 1 comprises a corrugated pipe, the top and bottom of which are fixedly installed with vertical cylinders, the outer sides of which are fixedly installed with connecting rings 10, the outer sides of which are provided with butt joints 11, and the connecting rings 10 are provided with a plurality of telescopic rods 12.
[0028] In this way, the telescopic rods 12 are limited between the two connecting rings 10 by the locking assembly, and since the two connecting rings 10 are fixed to the outer sides of the two vertical cylinders, when the first expansion pipe 1 is stretched or contracted, the telescopic rods 12 will be adjusted, and at this time, the installed telescopic rods 12 can effectively prevent the first expansion pipe 1 from bending.
[0029] Embodiment 4, as shown in the figure, is a further improvement based on embodiment 1, which is as follows: Figures 3-5
[0030] The locking assembly comprises a plurality of stop rings 13 fixedly installed on the top and bottom of the telescopic rods 12, which are respectively located on the inner sides of the two connecting rings 10, and the outer sides of the stop rings 13 are fixedly installed with bolts 14, which are respectively located in the inner sides of the butt joints 11, and the outer sides of the bolts 14 are respectively screwed with nuts 15 located on the outer sides of the connecting rings 10.
[0031] In this way, the nuts 15 are installed on the outer sides of the bolts 14 and approach the stop rings 13, so that the telescopic rods 12 can be reinforced in the inner sides of the connecting rings 10.
[0032] Embodiment 5, as shown in the figure, is a further improvement based on embodiment 3, which is as follows: Figures 1-2
[0033] The two second expansion pipes 2 are respectively fixedly installed on the outer sides of the two vertical cylinders.
[0034] In this way, the two second expansion pipes 2 can be bent at the top and bottom of the first expansion pipe 1 to release stress.
[0035] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model, and the ordinary skilled in the art can change, modify, replace and transform the above-mentioned embodiments within the scope of the utility model.
Claims
1. A novel hinged structure air supply device expansion joint, comprising an expansion pipe (1), characterized in that: The first expansion tube (1) is fixedly installed with a second expansion tube (2) at both the top and bottom. The first expansion tube (1) is fixedly installed with a first connecting post (3) near its top on both the left and right sides. The first expansion tube (1) is fixedly installed with a second connecting post (4) near its bottom on both the front and rear sides. The first connecting post (3) is rotatably installed with a first rotating arm (5) on the outside of both first connecting posts (3). The second expansion tube (2) at the top is fixedly installed with an upper fixing ring (6). The first rotating arm (5) is fixedly installed at the bottom of the upper fixing ring (6). The second rotating arm (7) is rotatably installed on the outside of both second connecting posts (4). The second expansion tube (2) at the bottom is fixedly installed with a lower fixing ring (8). The second rotating arm (7) is fixedly installed on the top of the lower fixing ring (8).
2. The expansion joint of the novel hinged air supply device according to claim 1, characterized in that: Flanges (9) are rotatably mounted on the outside of the two expansion tubes (2), and the two flanges (9) are located at one end of the outside of the two expansion tubes (2).
3. The expansion joint of the novel hinged air supply device according to claim 1, characterized in that: The first expansion tube (1) includes a corrugated tube, and vertical cylinders are fixedly installed at the top and bottom of the corrugated tube. Connecting rings (10) are fixedly installed on the outside of the two vertical cylinders. A docking groove (11) is opened on the outside of the two connecting rings (10). Multiple telescopic rods (12) are arranged between the two connecting rings (10). Locking components for limiting the multiple telescopic rods (12) are provided on the outside of the two connecting rings (10).
4. The expansion joint of the novel hinged air supply device according to claim 3, characterized in that: The locking assembly includes a stop ring (13) fixedly installed on the top and bottom of a plurality of telescopic rods (12). The plurality of stop rings (13) are respectively located inside the two connecting rings (10). Bolts (14) are fixedly installed on the outer side of the plurality of stop rings (13). The plurality of bolts (14) are respectively located inside the plurality of mating grooves (11). Nuts (15) located outside the two connecting rings (10) are threaded onto the outer side of the plurality of bolts (14).
5. The expansion joint of the novel hinged air supply device according to claim 3, characterized in that: The two expansion tubes (2) are respectively fixedly installed on the outside of the two vertical cylinders.