Tail gas recirculation conduit

Abstract

The utility model provides a tail gas recirculation conduit, and belongs to the technical field of conduits. The tail gas recirculation guide pipe comprises an adjusting mechanism and a main body, the adjusting mechanism comprises a sliding sleeve, connecting boxes are fixedly installed at the upper end and the lower end of the sliding sleeve, a transmission box is fixedly installed between one ends of the pair of connecting boxes, clamping blocks are slidably installed at the upper end and the lower end of the interior of the sliding sleeve, and a connecting piece is fixedly installed on one side of the upper end face of the sliding sleeve; the upper end and the lower end of the sliding sleeve are located in the pair of transmission boxes and rotationally connected with sleeves, the interiors of the sleeves are in threaded connection with screws, the threads of the pair of screws are opposite, and the bottom ends of the screws are fixedly connected with one sides of the pair of clamping blocks correspondingly. According to the tail gas recirculation guide pipe, the practicability of the tail gas recirculation guide pipe can be effectively improved, and the tail gas recirculation guide pipe has high practical value.

Description

Technical Field

[0001] The utility model relates to the technical field of conduits, and in particular to an exhaust gas recirculation conduit. Background Art

[0002] The core of the exhaust gas recirculation system is to reintroduce part of the exhaust gas into the engine's intake system, thereby increasing the heat capacity of the combustion mixture and reducing the oxygen concentration, thereby slowing down the combustion rate and lowering the peak combustion temperature, effectively reducing the generation of NOx. Therefore, an exhaust gas recirculation duct is used to introduce the exhaust gas into the engine's intake system.

[0003] Based on the above, the inventors have found the following problems: existing exhaust gas recirculation ducts are all welded with connectors for fixing the ducts, but since the positions of the connectors are fixed and cannot be adjusted, they cannot be installed on vehicles of different models, which greatly reduces the practicality of the exhaust gas recirculation ducts.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and an exhaust gas recirculation duct is provided, in order to achieve a purpose with greater practical value. Utility Model Content

[0005] In order to solve the above technical problems, the embodiment of the utility model provides an exhaust gas recirculation conduit, which is specifically implemented by the following technical solutions:

[0006] An exhaust gas recirculation duct comprises an adjustment mechanism and a main body, the adjustment mechanism comprises a sleeve, connecting boxes are fixedly installed at the upper and lower ends of the sleeve, a transmission box is fixedly installed between one ends of a pair of connecting boxes, clamping blocks are slidably installed at the upper and lower ends inside the sleeve, a connecting piece is fixedly installed on one side of the upper end surface of the sleeve, the upper and lower ends of the sleeve are rotatably connected with sleeves inside the pair of transmission boxes, the inside of the sleeve is threadedly connected with screws, the threads of the pair of screws are arranged oppositely, and the bottom ends of the screws are respectively fixedly connected to one side of a pair of clamping blocks, the main body comprises a duct body, the duct body is movably sleeved inside the sleeve, and connectors are provided at both ends of the duct body.

[0007] Furthermore, one end of the connection box is rotatably connected to a connecting rod, and one end of the connecting rod is sleeved with a worm.

[0008] The beneficial effect of adopting the above further solution is that the connecting rod is connected by rotation, so that the worm can be driven to rotate when the connecting rod rotates.

[0009] Furthermore, a worm gear is sleeved on one end of the sleeve, and the worm gear and the worm are meshed with each other.

[0010] The beneficial effect of adopting the above further solution is that by sleeve-arranging a worm wheel on one end of the sleeve so that the worm wheel is meshed with the worm, when the connecting rod rotates, the sleeve can be driven to rotate.

[0011] Furthermore, a rotating shaft is rotatably connected inside the transmission box, and first bevel gears are sleeved on both upper and lower ends of the rotating shaft.

[0012] The beneficial effect of adopting the above further solution is that by sleeve-arranging the first bevel gears at the upper and lower ends of the rotating shaft, when the rotating shaft rotates, a pair of first bevel gears can rotate synchronously.

[0013] Furthermore, one end of the connecting rod away from the worm gear extends to the interior of the transmission box and is sleeved with a second bevel gear, and the second bevel gear is meshed with the first bevel gear.

[0014] The beneficial effect of adopting the above further solution is that by sleeve-arranging the second bevel gear on one end of the connecting rod and making it mesh with the first bevel gear, when the rotating shaft rotates, the pair of sleeves can be driven to rotate synchronously.

[0015] Furthermore, a knob is rotatably connected to one side of the transmission box, one end of the knob extends to the interior of the transmission box and is sleeved with a third bevel gear.

[0016] The beneficial effect of adopting the above further solution is that by sleeve-arranging the third bevel gear on one end of the knob, the knob can be conveniently used to drive the third bevel gear to rotate.

[0017] Furthermore, a fourth bevel gear is sleeved at the center of the rotating shaft, and the fourth bevel gear and the third bevel gear are meshed with each other.

[0018] The beneficial effect of adopting the above further solution is that by meshing the fourth bevel gear with the third bevel gear, the rotating shaft can be driven to rotate when the knob is rotated.

[0019] Furthermore, the opposite surfaces of the clamping block are provided with a plurality of anti-skid textures, and the plurality of anti-skid textures are distributed at equal distances.

[0020] The beneficial effect of adopting the above further solution is that by providing a plurality of anti-skid textures on the opposite surfaces of the clamp block, the friction between the clamp block and the catheter body can be increased, thereby improving the firmness of the sliding sleeve on the catheter body.

[0021] The beneficial effects of the utility model are as follows: the utility model obtains an exhaust gas recirculation conduit through the above-mentioned design, and the exhaust gas recirculation conduit is connected by rotating the connecting sleeve at the upper and lower ends of the sliding sleeve, and the screw is threadedly connected inside the sleeve, and the bottom end of the screw is connected to the clamping block which is slidably connected at the upper and lower ends inside the sliding sleeve, and then when the sleeve rotates, since the thread arrangement of the screw is opposite, the screw can be used to drive the slidably connected clamping block to move relatively, and by movably sleeveing ​​the conduit body inside the sliding sleeve, the clamping block can clamp and fix the outer side of the conduit body when it moves relatively, thereby fixing the sliding sleeve on the conduit body, and when the conduit body needs to be connected, a connecting piece is installed on one side of the upper end of the sliding sleeve, and the user can move the sliding sleeve on the conduit body, and then fix the sliding sleeve after the connecting piece is fixed to a suitable position on the car by bolts. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the three-dimensional structure of an exhaust gas recirculation conduit provided by the utility model Figure 1 ;

[0024] Figure 2 A schematic diagram of the three-dimensional structure of an exhaust gas recirculation conduit provided by the utility model Figure 2 ;

[0025] Figure 3 A schematic diagram of the three-dimensional structure of an adjustment mechanism of an exhaust gas recirculation duct provided by the utility model;

[0026] Figure 4 A schematic side cross-sectional view of an adjustment mechanism of an exhaust gas recirculation duct provided by the utility model;

[0027] Figure 5 The utility model provides an exhaust gas recirculation conduit Figure 4 A magnified schematic diagram of the A structure.

[0028] In the figure: 100, adjusting mechanism; 1001, sliding sleeve; 1002, transmission box; 1003, connecting piece; 1004, connecting box; 1005, knob; 1006, clamping block; 1007, third bevel gear; 1008, fourth bevel gear; 1009, rotating shaft; 1010, first bevel gear; 1011, connecting rod; 1012, second bevel gear; 1013, sleeve; 1014, screw; 1015, worm wheel; 1016, worm; 200, main body; 2001, catheter body; 2002, connector. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0031] Embodiment 1 of the utility model of an exhaust gas recirculation conduit

[0032] The utility model provides the following technical solutions: Figure 1-Figure 5As shown, an exhaust gas recirculation duct includes an adjustment mechanism 100 and a main body 200. The adjustment mechanism 100 includes a sleeve 1001. The upper and lower ends of the sleeve 1001 are fixedly installed with connection boxes 1004. A transmission box 1002 is fixedly installed between one end of a pair of connection boxes 1004. Clamps 1006 are slidably installed at the upper and lower ends of the sleeve 1001. A connector 1003 is fixedly installed on one side of the upper end surface of the sleeve 1001. The upper and lower ends of the sleeve 1001 are fixedly installed with a connection box 1004. A sleeve 1013 is rotatably connected inside a pair of transmission boxes 1002, and a screw 1014 is threadedly connected inside the sleeve 1013. The threads of the pair of screws 1014 are arranged oppositely, and the bottom ends of the screws 1014 are respectively fixedly connected to one side of a pair of clamping blocks 1006. The main body 200 includes a catheter body 2001, which is movably sleeved inside the sliding sleeve 1001. Both ends of the catheter body 2001 are provided with connectors 2002. The upper and lower ends of the sleeve 1001 are rotatably connected to the sleeve 1013, and the screw 1014 is threadedly connected therein. The bottom end of the screw 1014 is connected to the clamping block 1006 which is slidably connected to the upper and lower ends of the sleeve 1001. When the sleeve 1013 rotates, since the thread arrangement of the screw 1014 is opposite, the screw 1014 can be used to drive the slidably connected clamping block 1006 to move relatively. By movably sleeve-arranging the catheter body 2001 inside the sleeve 1001, the clamping block 1006 can clamp and fix the outer side of the catheter body 2001 when the clamping block 1006 moves relatively, thereby fixing the sleeve 1001 on the catheter body 2001. When the catheter body 2001 needs to be connected, a connector 1003 is installed on one side of the upper end of the sleeve 1001. The user can move the sleeve 1001 on the catheter body 1001, and then fix the sleeve 1001 to a suitable position on the car by bolts.

[0033] Embodiment 2 of an exhaust gas recirculation conduit of the utility model

[0034] Reference Figure 1-Figure 5As shown, a pair of connecting boxes 1004 are rotatably connected to one end of the inner part with a connecting rod 1011, one end of the connecting rod 1011 is sleeved with a worm 1016, one end of the sleeve 1013 is sleeved with a worm wheel 1015, the worm wheel 1015 and the worm 1016 are meshed with each other, the inner part of the transmission box 1002 is rotatably connected to a rotating shaft 1009, the upper and lower ends of the rotating shaft 1009 are sleeved with a first bevel gear 1010, and the connecting rod 1011 extends away from one end of the worm 1016. To the inside of the transmission box 1002, and are sleeved with a second bevel gear 1012, the second bevel gear 1012 and the first bevel gear 1010 are meshed with each other, one side of the transmission box 1002 is rotatably connected to a knob 1005, one end of the knob 1005 extends to the inside of the transmission box 1002, and is sleeved with a third bevel gear 1007, the center of the rotating shaft 1009 is sleeved with a fourth bevel gear 1008, the fourth bevel gear 1008 and the third bevel gear 1007 are meshed with each other , the connecting rod 1011 is connected by rotation, so that when it rotates, the worm 1016 can be driven to rotate. By sleeved with a worm wheel 1015 at one end of the sleeve 1013, it is meshed with the worm 1016. When the connecting rod 1011 rotates, the sleeve 1013 can be driven to rotate. The first bevel gears 1010 are sleeved at the upper and lower ends of the rotating shaft 1009, so that when the rotating shaft 1009 rotates, a pair of first bevel gears 1010 can rotate synchronously. A second bevel gear 1012 is sleeved on one end of 11 and meshed with the first bevel gear 1010. When the rotating shaft 1009 rotates, a pair of sleeves 1013 can be driven to rotate synchronously. By sleeved on one end of the knob 1005, the knob 1005 can drive the third bevel gear 1007 to rotate. By meshing the fourth bevel gear 1008 with the third bevel gear 1007, the rotating shaft 1009 can be driven to rotate when the knob 1005 rotates.

[0035] Embodiment 3 of an exhaust gas recirculation conduit of the utility model

[0036] Reference Figure 1-Figure 5 As shown, the opposing surfaces of a pair of clamps 1006 are provided with a plurality of anti-slip textures, and the plurality of anti-slip textures are equidistantly distributed. By providing a plurality of anti-slip textures on the opposing surfaces of the clamps 1006, the friction between the clamps 1006 and the catheter body 2001 can be increased, and the firmness of the sliding sleeve 1001 on the catheter body 2001 can be improved.

[0037] Specifically, the working principle of the exhaust gas recirculation duct is as follows: when in use, the user connects the two ends of the duct body 2001 to the exhaust pipe and the engine intake system respectively, and then the user slides the sleeve 1001 on the duct body 1001. A connector 1003 is installed on one side of the upper end of the sleeve 1001. After the user moves it to a suitable position inside the car, the connector 1003 is fixed to the internal frame of the car by bolts. Then, the user turns the knob 1005. One end of the knob 1005 is sleeved with a third bevel gear 1007. The third bevel gear 1007 is meshed with a fourth bevel gear 1008 sleeved at the center of the rotating shaft 1009, so that the rotating shaft 1009 can rotate. The upper and lower ends of the rotating shaft 1009 are sleeved with a first bevel gear 1010. The first bevel gear 1010 is sleeved with a fourth bevel gear 1008 at the center of the rotating shaft 1009. 010 is meshed with a second bevel gear 1012 sleeved on one end of a connecting rod 1011, thereby driving the connecting rod 1011 to rotate; a worm 1016 is sleeved on one end of the connecting rod 1011, and the worm 1016 is meshed with a worm wheel 1015 sleeved on one end of a sleeve 1013, so that the sleeve 1013 can rotate synchronously; a screw 1014 is threadedly connected to the bottom end of the sleeve 1013, and the thread settings of a pair of screws 1014 are opposite, and one end of the screw 1014 is connected to a clamping block 1006 slidably connected to the upper and lower ends of the sliding sleeve 1001, and then when the sleeve 1013 rotates synchronously, the screw 1014 can be used to drive the clamping block 1006 to move relative to each other, so as to clamp and fix the outer side surface of the catheter body 2001, thereby facilitating the fixation of the catheter body 2001 to the internal frame of the automobile.

[0038] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An exhaust gas recirculation duct, characterized in that: The invention comprises an adjusting mechanism (100) and a main body (200), wherein the adjusting mechanism (100) comprises a sliding sleeve (1001), a connecting box (1004) is fixedly installed at both upper and lower ends of the sliding sleeve (1001), a transmission box (1002) is fixedly installed between one end of a pair of the connecting boxes (1004), a clamping block (1006) is slidably installed at both upper and lower ends of the interior of the sliding sleeve (1001), a connecting piece (1003) is fixedly installed on one side of the upper end surface of the sliding sleeve (1001), and the upper and lower ends of the sliding sleeve (1001) are located between a pair of the connecting boxes (1004). The transmission box (1002) is rotatably connected to a sleeve (1013) inside, and the sleeve (1013) is threadedly connected to a screw (1014) inside. The threads of a pair of screws (1014) are arranged oppositely, and the bottom ends of the screws (1014) are respectively fixedly connected to one side of a pair of clamping blocks (1006). The main body (200) includes a catheter body (2001), and the catheter body (2001) is movably sleeved inside the sliding sleeve (1001), and connectors (2002) are provided at both ends of the catheter body (2001).

2. An exhaust gas recirculation duct according to claim 1, characterized in that: One end of each of the connection boxes (1004) is rotatably connected to a connection rod (1011), and one end of each of the connection rods (1011) is sleeved with a worm (1016).

3. An exhaust gas recirculation duct according to claim 2, characterized in that: A worm wheel (1015) is sleeved on one end of the sleeve (1013), and the worm wheel (1015) and the worm (1016) are meshed with each other.

4. An exhaust gas recirculation conduit according to claim 3, characterized in that: The transmission box (1002) is rotatably connected to a rotating shaft (1009) inside, and the upper and lower ends of the rotating shaft (1009) are sleeved with first bevel gears (1010).

5. An exhaust gas recirculation conduit according to claim 4, characterized in that: One end of the connecting rod (1011) away from the worm (1016) extends to the interior of the transmission box (1002) and is sleeved with a second bevel gear (1012), and the second bevel gear (1012) and the first bevel gear (1010) are meshed with each other.

6. An exhaust gas recirculation conduit according to claim 5, characterized in that: A knob (1005) is rotatably connected to one side of the transmission box (1002), and one end of the knob (1005) extends into the interior of the transmission box (1002) and is sleeved with a third bevel gear (1007).

7. An exhaust gas recirculation conduit according to claim 6, characterized in that: A fourth bevel gear (1008) is sleeved at the center of the rotating shaft (1009), and the fourth bevel gear (1008) and the third bevel gear (1007) are meshed with each other.

8. The exhaust gas recirculation conduit according to claim 1, characterized in that: The opposing surfaces of a pair of the clamping blocks (1006) are provided with a plurality of anti-skid textures, and the plurality of anti-skid textures are distributed at equal distances.

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