Positioning device for mounting circular air pipe sealing gasket

Abstract

The utility model discloses a positioning device for installing a circular air pipe sealing gasket, which comprises a positioning component, one end of the positioning component is inserted into an air pipe and rotates along the inner wall, the other end of the positioning component is contacted with a flange plate at the end part of the air pipe and rotates along with the flange plate, and the sealing gasket is sleeved at the outer end of the positioning component and is kept contacted with the flange plate at the end part of the air pipe. According to the positioning device, the sealing gasket can be conveniently and coaxially attached to the flange plate at the end of the circular air pipe, so that the sealing gasket is located at the correct installation position, and the situation that errors are generated when the sealing gasket is manually positioned, and the sealing effect is affected is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of positioning device for circular air pipe sealing pad installation. BACKGROUND

[0002] In ventilation system, the splicing installation of air pipe is crucial, and its sealing performance directly affects the normal operation of the system. Currently, the sealing pad is usually arranged on the splicing installation surface of the air pipe to ensure the sealing effect. For circular air pipe, O-shaped sealing pad is the most widely used type during splicing. During installation, the O-shaped sealing pad is placed coaxially on the flange end face of the air pipe at both ends, and then the two flanges are connected by bolts and nuts, and the sealing of the connecting surface of the two flanges is realized by the elasticity of the O-shaped sealing pad, thereby completing the installation of the O-shaped sealing pad.

[0003] However, many problems are encountered during actual installation of the sealing pad. The flange end face of some air pipes is not designed with a sealing groove, which results in that the sealing pad can only be pasted on the flange end face by manual operation during installation. Due to the limitation of manual operation, it is difficult to accurately ensure that the sealing pad is coaxial with the air pipe. Once the sealing pad is installed out of alignment, it is likely that part of the sealing pad is located at the air inlet position of the air pipe. This deviation will adversely affect the key parameters such as air volume and air pressure of the ventilation system, thereby reducing the performance and efficiency of the entire ventilation system, increasing the instability factors of the system operation, and also possibly causing energy waste due to poor sealing effect, etc. Therefore, there is an urgent need for a technical solution to solve the above problems of sealing pad installation. CONTENT OF THE UTILITY MODEL

[0004] Therefore, in order to solve the above problems, the utility model provides a positioning device for circular air pipe sealing pad installation. The positioning device can install the sealing pad coaxially on the flange at the end of the air pipe through the arrangement of the positioning assembly, which facilitates the fixation of the sealing pad after the flange of another air pipe is spliced, effectively improves the installation precision of the sealing pad, ensures the installation quality of the air pipe, and reduces leakage.

[0005] The utility model is implemented by constructing a positioning device for circular air pipe sealing pad installation, which includes a positioning assembly. One end of the positioning assembly is inserted into the air pipe and rotates along the inner wall, and the other end contacts the flange at the end of the air pipe and rotates with it. The sealing pad is sleeved on the outer end of the positioning assembly to maintain contact with the flange at the end of the air pipe.

[0006] Preferably, the positioning assembly comprises an outer cylinder and an inner cylinder, the outer cylinder and the inner cylinder are kept inserted at any one end, a rotating first roller and a rotating second roller are arranged at the other end of the outer cylinder and the inner cylinder, the first roller is in contact with and rotates on the flange plate at the end of the air pipe, and the second roller is inserted into the air pipe and rotates along the inner wall.

[0007] Preferably, the inner cylinder is inserted into the outer cylinder and kept telescopic, an elastic member is arranged in the inner cylinder and the outer cylinder, and a supporting rod is coaxially arranged in the inner cylinder, the elastic member is sleeved on the outer end of the supporting rod and kept fixed at the inner end of the inner cylinder and the outer cylinder.

[0008] Preferably, a guide rail is arranged on the outer end of the inner cylinder along the length direction of the inner cylinder, and a sliding groove matched with the guide rail is formed on the inner wall of the outer cylinder.

[0009] Preferably, the first roller is rotatably arranged at the outer end of the outer cylinder and the inner cylinder, and the second roller is arranged at the side of the first roller and rotatably arranged on the outer side of the outer cylinder and the inner cylinder.

[0010] Preferably, the second rollers on the outer cylinder and the inner cylinder are arranged on the same plane.

[0011] Preferably, the rotation axes of the first roller and the second roller are perpendicular.

[0012] Compared with the prior art, the positioning device has the following advantages:

[0013] 1. The positioning device can accurately install the sealing gasket on the flange plate at the end of the air pipe in a coaxial manner by means of the positioning assembly. This feature greatly facilitates the subsequent flange plate of another air pipe to be spliced with the sealing gasket and effectively fixed, and fundamentally improves the installation accuracy of the sealing gasket. The high-precision sealing gasket installation can ensure that the sealing performance of the spliced part of the air pipe reaches an ideal state, effectively reduces or even eliminates the leakage phenomenon, thereby ensuring the air-tight integrity of the entire air pipe system, improving the operation stability and reliability of the related facilities such as ventilation or air conditioning systems, reducing the energy loss and system failure risk caused by leakage, prolonging the service life of the system and reducing the maintenance cost.

[0014] 2. The positioning component is designed with a unique structure of an outer and inner cylinder, with an elastic element cleverly placed between them, giving the positioning device excellent adaptability. It can automatically adjust the length of the outer and inner cylinders according to the diameter differences of different ducts, and quickly and automatically tension and conform to the inner diameter of the duct when inserted into it. When the positioning device rotates, it can automatically and evenly press the gasket tightly against the flange end of the duct, further ensuring that the gasket always remains in a coaxial installation state, achieving a stable and efficient ideal sealing effect, unaffected by changes in duct specifications. This greatly improves the versatility and practicality of the positioning device in different duct installation scenarios, providing a convenient, efficient, and precise solution for duct gasket installation, and powerfully promoting the development and progress of duct installation technology. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the specific embodiments of the present invention to explain the present invention, but do not constitute any limitation on the present invention. In the drawings:

[0016] Figure 1 This is a schematic diagram of the structure of the present invention, showing the installation of the sealing gasket on the air duct;

[0017] Figure 2 This is a schematic diagram showing the disassembly of the sealing gasket, air duct, and positioning component in this utility model;

[0018] Figure 3 This is a schematic diagram of the positioning component of this utility model;

[0019] Figure 4 for Figure 3 A schematic diagram of the frontal view;

[0020] Figure 5 for Figure 4 A schematic diagram of the AA section;

[0021] Figure 6 This is a schematic diagram of the structure of the outer tube and its connecting components in this utility model;

[0022] In the diagram: 1. Duct; 2. Flange; 3. Sealing gasket; 4. Outer cylinder; 5. Inner cylinder; 6. First roller; 7. Second roller; 8. Guide rail; 9. Support rod; 10. Elastic element; 11. Slide groove. Detailed Implementation

[0023] The technical scheme of the utility model will be further specifically explained below by means of specific embodiments and in conjunction with the drawings; it should be understood that the specific embodiments described herein are only used for illustrating and explaining the utility model and should not be regarded as any limitation on the utility model; the drawings in the utility model are only used for describing the embodiments and facilitating understanding and use and should not be regarded as any relevant limitation on the utility model.

[0024] It should be noted that the structure, proportion, size and the like shown in the drawings of the present specification are only used to cooperate with the content disclosed in the specification so as to be understood and read by those skilled in the art and should not be used to limit the limiting conditions of the utility model that can be implemented. Any modification of structure, change of proportion relationship or adjustment of size, which does not affect the effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model.

[0025] As described in the background, when the current air pipe sealing gasket is installed, if the air pipe end is not provided with a sealing groove, it is inconvenient to position the sealing gasket, and the staff cannot guarantee that the sealing gasket is coaxial with the air pipe when the sealing gasket is pasted to the air pipe end, so that a part of the sealing gasket may be located on the air port of the air pipe, which not only affects the ventilation of the air pipe, but also leads to poor sealing effect.

[0026] Based on the above reasons, in order to solve the above problems, the utility model provides the following technical scheme:

[0027] Embodiment 1,

[0028] Please refer to the drawings Figure 1 and the drawings Figure 2 A positioning device for installing a circular air pipe sealing gasket, comprising a positioning assembly, one end of which is inserted into the air pipe 1 and rotates along the inner wall, the other end of which is in contact with the flange plate 2 on the end of the air pipe 1 and rotates with it, and the sealing gasket 3 is sleeved on the outer end of the positioning assembly to keep in contact with the flange plate 2 on the end of the air pipe 1.

[0029] Please refer to the drawings Figure 1 and the drawings Figure 3 In the embodiment, the positioning assembly specifically comprises an outer cylinder 4 and an inner cylinder 5, and any one end of the outer cylinder 4 and the inner cylinder 5 is kept in insertion, and the other end of the outer cylinder 4 and the inner cylinder 5 is provided with a rotating first roller 6 and a second roller 7, the first roller 6 is in contact with the flange plate 2 on the end of the air pipe 1 and rotates on the flange plate 2, and the second roller 7 is inserted into the air pipe 1 and in contact with the inner wall to rotate along the inner wall.

[0030] In the embodiment, the inner cylinder 5 is inserted into the outer cylinder 4 and kept telescopic, an elastic member 10 is arranged in the inner cylinder 5 and the outer cylinder 4, and a supporting rod 9 is coaxially arranged in the outer cylinder 4, the elastic member 10 is sleeved on the outer end of the supporting rod 9 and kept fixed on the inner end of the inner cylinder 5 and the outer cylinder 4 respectively.

[0031] In the embodiment, the first roller 6 is rotatably arranged on the outer end of the outer cylinder 4 and the inner cylinder 5, and the second roller 7 is arranged on the side of the first roller 6 and rotatably arranged on the outer side of the outer cylinder 4 and the inner cylinder 5.

[0032] In use, first, the air pipe 1 is laid flat and fixed, then the second roller 7 at the end of the inner cylinder 5 and the outer cylinder 4 in the positioning assembly is inserted into the air pipe 1 from the end of the flange plate 2, the two second rollers 7 are automatically tensioned on the inner wall of the air pipe 1 under the action of the elastic member 10, the diameter of the air pipe 1 is formed, and the first roller 6 is kept on the end surface of the flange plate 2, then the sealing gasket 3 is sleeved on the outer end of the inner cylinder 5 and the outer cylinder 4, and the part of the sealing gasket 3 close to the first roller 6 is contacted and compressed on the end of the flange plate 2 (glue or the like for easy sticking can be arranged on the end of the sealing gasket 3, so that the sealing gasket will not fall off after being compressed), then the positioning assembly is rotated, the second roller 7 rolls around the center on the inner wall of the air pipe 1, and at the same time, the two first rollers 6 on the outer end roll around the center on the flange plate 2, in the rolling process, the rest of the sealing gasket 3 is contacted and compressed on the rest of the flange plate 2 with the rolling of the first roller 6, finally, after one rotation, the sealing gasket 3 is completely attached to the flange plate 2, the coaxial positioning of the sealing gasket 3 is realized, and finally the positioning assembly is removed, and the flange plate 2 of another air pipe 1 is aligned with the flange plate 2 and connected and fixed through the bolt and nut.

[0033] Embodiment 2,

[0034] Please combine 3~appendix Figure 6 Based on the embodiment 1, in order to avoid the rotation of the inner cylinder and the outer cylinder in the telescopic process, causing the two second rollers 7 in the positioning assembly not in the same plane, and unable to be automatically tensioned and rolled on the inner wall of the air pipe, a feasible solution is provided, a guide rail 8 is arranged on the outer end of the inner cylinder 5 along the length direction of the inner cylinder 5, and a sliding groove 11 matched with the guide rail 8 is arranged on the inner wall of the outer cylinder 4.

[0035] In the embodiment, the second rollers 7 on the outer cylinder 4 and the inner cylinder 5 are kept arranged in the same plane.

[0036] Embodiment 3,

[0037] Based on the embodiment 1, because the inner wall of the air pipe and the end of the air pipe are perpendicular, in order to realize the rolling of the first roller and the second roller around the center of the air pipe on the inner wall of the air pipe and the end of the air pipe respectively, the rotation axis of the first roller 6 and the second roller 7 is kept perpendicular.

[0038] The above description is a detailed description of the preferred and feasible embodiments of the present application, but the embodiments are not intended to limit the patent application range of the present application. Any equivalent changes or modified changes completed under the technical spirit of the present application should belong to the patent range covered by the present application.

Claims

1. A positioning device for round duct gasket installation, characterized by: The positioning assembly is inserted into the air duct at one end and rotates along the inner wall, and the other end is in contact with the flange plate on the end of the air duct and rotates with the flange plate, and the sealing gasket is sleeved on the outer end of the positioning assembly to keep in contact with the flange plate on the end of the air duct.

2. A positioning device for mounting a sealing gasket for a circular duct according to claim 1, characterized in that: The positioning assembly specifically comprises an outer cylinder and an inner cylinder, and any one end of the outer cylinder and the inner cylinder is kept in insertion, and the other end of the outer cylinder and the inner cylinder is provided with a rotating first roller and a second roller, the first roller is in contact with the flange plate on the end of the air duct and rotates on the flange plate, and the second roller is inserted into the air duct and is in contact with the inner wall and rotates along the inner wall.

3. A positioning device for mounting a sealing gasket for a circular duct according to claim 2, characterized in that: The inner cylinder is inserted into the inner part of the outer cylinder and is kept telescopic, and an elastic member is arranged in the inner part of the inner cylinder and the outer cylinder, and a supporting rod is coaxially arranged in the inner part of the outer cylinder, the elastic member is sleeved on the outer end of the supporting rod and is kept fixed at two ends on the inner end of the inner cylinder and the outer cylinder respectively.

4. A positioning device for mounting a sealing gasket for a circular duct according to claim 3, characterized in that: A guide rail is arranged on the outer end of the inner cylinder along the length direction of the inner cylinder, and a sliding groove matched with the guide rail is formed on the inner wall of the outer cylinder.

5. The positioning device for mounting a sealing gasket of a circular air duct according to claim 2, characterized in that: The first roller is rotatably mounted on the outer end of the outer cylinder and the inner cylinder, and the second roller is arranged on the side of the first roller and is rotatably mounted on the outer side of the outer cylinder and the inner cylinder.

6. A positioning device for mounting a sealing gasket for a circular duct according to claim 5, characterized in that: The second rollers on the outer cylinder and the inner cylinder are kept arranged in the same plane.

7. A positioning device for mounting a sealing gasket for a circular duct according to claim 5, characterized in that: The rotation axes of the first roller and the second roller are kept perpendicular.

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