Airtight plugging device for EGR (Exhaust Gas Recirculation) cooler
By designing an EGR cooler air-sealing blocking device including threaded through, movable parts, silicone rods, movable sleeves, press handles and nuts, the complex and inconvenient problems of traditional sealing structure is solved, and simple operation and adaptation to different pipe diameters is achieved. sealing effect.
Patent Information
- Application Number
- CN202421201204.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-29
AI Technical Summary
Traditional EGR cooler sealing structures have many components and complex operations, so it is impossible to quickly replace seals suitable for different pipe diameters, resulting in inconvenience in use.
Design an air-sealed sealing device including threaded through, movable parts, silicone rods, movable sleeves, pressing handles and nuts. Through the cooperation of movable parts and pressing handles, the silicone rods are extruded and deformed in the movable parts and nuts, which is suitable for Sealing and sealing of different pipe diameters.
It realizes simple operation and one-hand grip, suitable for sealing and sealing of different pipe diameters, and is easy to replace. Just replace the silicone rod to adapt to different pipe diameters.
Smart Images
Figure CN222276806U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of airtight plugging, in particular to an airtight plugging device for an EGR cooler. Background Art
[0002] The EGR cooling system is a device designed to reduce NOx emissions from automobile exhaust. It is an exhaust gas recirculation system that redirects a small amount of exhaust gas into the intake valve when the automobile is at a higher speed. During the inspection or repair of the EGR cooler, it is usually necessary to seal the pipes of the EGR cooler for subsequent operations. However, the traditional technology has more sealing structural components, the operation is more cumbersome and complicated, and it is impossible to quickly replace different seals according to different pipe diameters, which makes it more inconvenient during use. Utility Model Content
[0003] The purpose of the utility model is to solve the problems that there are many sealing structure components in the background, the operation is cumbersome and complicated, and different seals cannot be quickly replaced according to different pipe diameters, resulting in inconvenience in its use, and an EGR cooler airtight sealing plugging device is proposed.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] An EGR cooler airtight sealing device is designed, comprising a threaded through-hole and an EGR cooler, wherein a main component is sleeved and fixed on the outer wall of the threaded through-hole, and the upper and lower parts of the right side outer wall of the main component are rotatably connected to a pressure handle through a pin shaft, a movable component is sleeved on the right side outer wall of the threaded through-hole, a silicone rod is distributed on the right side of the movable component, and the silicone rod is sleeved on the right side outer wall of the threaded through-hole, a nut is threadedly connected to the right end of the threaded through-hole, and the inner ends of the nut and the movable component are tightly pressed against the silicone rod, and a movable sleeve is sleeved on the outer wall of the main component.
[0006] Preferably, the inner and outer walls of the pressure handle are processed with inclined corner blocks, and the inclined surfaces of the corner blocks of the pressure handle fit with the notched grooves on the upper and lower sides of the movable sleeve.
[0007] Preferably, the EGR cooler is located on one side of the silicone rod, and an interface is processed at the lower left end of the EGR cooler.
[0008] Preferably, the inner wall of the interface is tightly fitted with the outer wall of the silicone rod.
[0009] The utility model provides an EGR cooler airtight plugging device, which has the following beneficial effects:
[0010] Through the cooperation among the movable part, the silicone rod, the movable sleeve, the pressure handle and the nut, the movable part and the silicone rod are first installed in sequence on the right outer wall of the threaded straight through, and then the nut is tightened to make the silicone rod on the inner side of the movable part and the nut, and then the main part is held and the pressure handles on the upper and lower sides are pinched to move inward, so that the inner end inclined angle block of the pressure handle is against the notch of the movable sleeve, and the movable sleeve is pushed to move to the right to squeeze the silicone rod, that is, the movable sleeve is transmitted by the pressure handle, and the movable sleeve squeezes the movable part, thereby squeezing the fixed silicone rod to deform and expand, and then against the inner wall of the interface to play a role in sealing the pipe. Compared with the prior art, this case has the following advantages: 1. Simple operation, can be held with one hand; 2. Easy to replace, can be applied to water pipes of different diameters, and only needs to replace the silicone rod. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 This is a schematic diagram of the structure of the utility model in an unconnected state;
[0012] Figure 2 This is a schematic diagram of the connection state structure of the utility model;
[0013] Figure 3 It is a structural schematic diagram of the silicone rod, main parts and movable parts in the utility model;
[0014] Figure 4 For this utility model Figure 3 Exploded diagram of .
[0015] In the figure: 1. nut, 2. silicone rod, 3. pressure handle, 4. movable sleeve, 5. movable part, 6. main part, 7. threaded straight through, 8. EGR cooler, 9. interface. DETAILED DESCRIPTION
[0016] The utility model is further described below in conjunction with the accompanying drawings:
[0017] Refer to the attached Figure 1-4In the present embodiment, an EGR cooler airtight plugging device comprises a threaded through-hole 7 and an EGR cooler 8. A main component 6 is sleeved and fixed on the outer wall of the threaded through-hole 7. The upper and lower parts of the right side outer wall of the main component 6 are rotatably connected to the pressure handle 3 through a pin shaft. A movable component 5 is sleeved on the right side outer wall of the threaded through-hole 7. A silicone rod 2 is distributed on the right side of the movable component 5, and the silicone rod 2 is sleeved on the right side outer wall of the threaded through-hole 7. A nut 1 is threadedly connected to the right end of the threaded through-hole 7, and the inner end of the nut 1 and the movable component 5 is tightly pressed against the silicone rod 2, so that the fixed silicone rod 2 is squeezed, deformed and expanded, and then pressed against the inside of the interface 9. The wall plays the role of sealing inside the tube. The outer wall of the main part 6 is sleeved with a movable sleeve 4. The pressure handles 3 on the upper and lower sides are pinched to move inward, so that the inner end inclined angle block of the pressure handle 3 is against the notch of the movable sleeve 4, and the movable sleeve 4 is pushed to move to the right. The inner and outer walls of the pressure handle 3 are processed with inclined angle blocks, and the inclined surfaces of the angle blocks of the pressure handle 3 are fitted with the notch grooves on the upper and lower sides of the movable sleeve 4. The model of the EGR cooler 8 can be determined according to the specific usage. The EGR cooler 8 is located on one side of the silicone rod 2, and the lower left end of the EGR cooler 8 is processed with an interface 9, and the inner wall of the interface 9 is tightly fitted with the outer wall of the silicone rod 2.
[0018] Scope of application of this case: Applicable to inflation sealing or plugging of water pipes within the range of 14-50mm.
[0019] Through the cooperation among the movable part 5, the silicone rod 2, the movable sleeve 4, the pressure handle 3 and the nut 1, the movable part 5 and the silicone rod 2 are first installed in sequence on the right outer wall of the threaded straight through 7, and then the nut 1 is tightened to make the silicone rod 2 on the inner side of the movable part 5 and the nut 1, and then the main part 6 is held and the pressure handles 3 on the upper and lower sides are pinched to move inward, so that the inner end inclined angle block of the pressure handle 3 is against the notch of the movable sleeve 4, and the movable sleeve 4 is pushed to move to the right to squeeze the silicone rod 2, that is, the movable sleeve 4 is transmitted by the pressure handle 3, and the movable sleeve 4 squeezes the movable part 5, so that the fixed silicone rod 2 is squeezed, deformed and expanded, and then against the inner wall of the interface 9 to play the role of sealing and plugging inside the pipe. Compared with the prior art, this case has the following advantages: 1. Simple operation, can be held with one hand; 2. Easy to replace, can be applied to water pipes of different diameters, and only needs to replace the silicone rod.
[0020] Working principle:
[0021] When the EGR cooler airtight plugging device is needed, the user can first install the EGR cooler 8 at the corresponding position, and then install the movable part 5 and the silicone rod 2 on the right outer wall of the threaded straight through 7 in sequence, and then tighten the nut 1 to make the silicone rod 2 on the inner side of the movable part 5 and the nut 1, and then hold the main part 6, and pinch the pressure handles 3 on the upper and lower sides to move inward, so that the inner end inclined angle block of the pressure handle 3 is against the notch of the movable sleeve 4, and the movable sleeve 4 is pushed to move to the right, squeezing the silicone rod 2, that is, the movable sleeve 4 is transmitted by the pressure handle 3, and the movable sleeve 4 squeezes the movable part 5, so that the fixed silicone rod 2 is squeezed, deformed and expanded, and then against the inner wall of the interface 9 to play the role of sealing inside the pipe. Compared with the prior art, this case has the following advantages: 1. Simple operation, can be held with one hand; 2. Easy to replace, can be applied to water pipes of different diameters, and only needs to replace the silicone rod.
[0022] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.
Claims
1. An EGR cooler gas-tight plugging device, comprising a threaded through-hole (7) and an EGR cooler (8), characterized in that: The outer wall of the threaded through-hole (7) is sleeved and fixed with a main part (6); the upper and lower parts of the right side outer wall of the main part (6) are rotatably connected to the pressure handle (3) through a pin shaft; the right side outer wall of the threaded through-hole (7) is sleeved with a movable part (5); a silicone rod (2) is distributed on the right side of the movable part (5), and the silicone rod (2) is sleeved on the right side outer wall of the threaded through-hole (7); a nut (1) is threadedly connected to the right end of the threaded through-hole (7), and the inner ends of the nut (1) and the movable part (5) are tightly pressed against the silicone rod (2); and the outer wall of the main part (6) is sleeved with a movable sleeve (4).
2. The EGR cooler airtight plugging device according to claim 1, characterized in that: The inner and outer walls of the pressing handle (3) are both processed with inclined corner blocks, and the inclined surfaces of the corner blocks of the pressing handle (3) fit with the notched grooves on the upper and lower sides of the movable sleeve (4).
3. The EGR cooler airtight plugging device according to claim 1, characterized in that: The EGR cooler (8) is located on one side of the silicone rod (2), and an interface (9) is processed at the lower left end of the EGR cooler (8).
4. The EGR cooler airtight plugging device according to claim 3, characterized in that: The inner wall of the interface (9) is tightly fitted to the outer wall of the silicone rod (2).
5. The EGR cooler airtight plugging device according to claim 3, characterized in that: The lower left end of the EGR cooler (8) is processed with an interface (9).