A diesel engine tailpipe segmented clamp

Abstract

The utility model discloses a kind of diesel engine tail gas pipe segmented clamps, applied in the technical field of clamp, including first clamping section, the back surface of first clamping section is welded with fixing frame, the back surface of fixing frame is provided with fixed plate, the front surface of fixed plate is symmetrically installed with connecting plate, the both sides of fixing frame are welded with first screw rod, the other end of first screw rod is threadedly connected with nut, the inside of first clamping section is rotatably connected with second clamping section and third clamping section respectively by rotating shaft, the inside of third clamping section is rotatably connected with second screw rod, the surface of second screw rod is threadedly connected with threaded seat. Good positioning effect can be realized, excessive shaking of internal pipeline can be limited, the stability of whole is enhanced, safety is high, and simultaneously can have elastic compensation function, when displacement is generated due to thermal expansion and cold shrink, automatically compensate gap, avoid loosening or excessive extrusion, good flexibility.

Description

Technical Field

[0001] This utility model belongs to the field of clamp technology, and specifically relates to a segmented clamp for the exhaust pipe of a diesel engine. Background Technology

[0002] Currently, Chinese utility model patent CN216590277U discloses a fixing clamp. Although this clamp is composed of multiple sections and can be inserted and tightened without removing the pipe, it still has other problems during use. For example, the positioning effect is poor. After installation, the clamp will adhere to the exhaust pipe and cannot be connected to the vehicle frame, which cannot limit its excessive shaking. Over time, this can cause metal fatigue or even breakage, reducing the product's service life. Moreover, it does not have an elastic compensation function. The groove inside the clamp is rigidly clamped to the pipe. When the pipe is displaced due to thermal expansion and contraction, it cannot be adjusted and the gap cannot be compensated in time, which can lead to loosening or excessive compression, resulting in poor flexibility. Utility Model Content

[0003] The purpose of this utility model is to provide a segmented clamp for the exhaust pipe of a diesel engine, which has the advantages of achieving good positioning effect and having elastic compensation function.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a segmented clamp for a diesel engine exhaust pipe, comprising a first clamping segment, a fixing frame welded to the back of the first clamping segment, a fixing plate provided on the back of the fixing frame, connecting plates symmetrically installed on the front of the fixing plate, first screws welded to both sides of the fixing frame, and nuts threadedly connected to the other end of the first screws, a second clamping segment and a third clamping segment rotatably connected inside the first clamping segment via a rotating shaft, a second screw rotatably connected inside the third clamping segment, a threaded seat threadedly connected to the surface of the second screw, and limiting plates provided inside the first, second, and third clamping segments, with a fixing spring bolted to the other side of the limiting plate and the first, second, and third clamping segments via a spring fixing plate.

[0005] The above technical solution achieves good positioning, limits excessive shaking of internal pipes, enhances overall stability, and provides high safety. It also has an elastic compensation function, which automatically compensates for gaps when displacement occurs due to thermal expansion and contraction, preventing loosening or excessive compression, and providing good flexibility.

[0006] The present invention is further configured such that a damper is installed between the other side of the limiting plate and the first card segment, the second card segment and the third card segment.

[0007] The above technical solution utilizes a damper to suppress the jumping of the fixed spring, consume the kinetic energy stored in the fixed spring, thereby reducing the resonance amplitude and improving stability.

[0008] The present invention is further configured such that a spring washer is slidably sleeved on the surface of the first screw, and the spring washer is located between the connecting plate and the nut.

[0009] The above technical solution improves the fixing effect of the nut after tightening by setting spring washers, thus playing a role in shock absorption and preventing loosening.

[0010] The present invention is further configured such that two mounting grooves are provided on the front side of the fixing plate.

[0011] The above technical solution allows for easy connection of the mounting plate to the frame using screws, reducing the hassle of temporary drilling.

[0012] The present invention is further configured such that a rotating component is integrally formed on one side of the threaded seat.

[0013] The above technical solution allows for easy rotation of the threaded seat by the use of a rotating component.

[0014] The present invention is further configured such that both the first screw and the nut are made of stainless steel.

[0015] The above technical solution features a first screw and nut with high strength, low density, and excellent corrosion resistance.

[0016] In summary, this utility model has the following beneficial effects:

[0017] 1. By pulling the second and third clamp sections apart and placing them on the exhaust pipe, after the clamp is in place, adjust the position of the first clamp section so that it is at the top, and then pull the fixing plate upward. When the fixing plate is pulled up, it will drive the two connecting plates to move upward. After the fixing plate is pulled down to the bottom and fits against the bottom of the frame, fix it with screws. Finally, tighten the nuts. This can achieve good positioning effect, limit excessive shaking of the internal pipe, enhance overall stability, and ensure high safety.

[0018] 2. By grasping the lower ends of the second and third locking sections and pulling them downwards, the limiting plate will retract inwards due to the resistance from the pipe when the second and third locking sections are pulled down and pressed tightly. After the limiting plate retracts, it will compress the fixed spring and damper, causing them to contract. When the second and third locking sections are pulled down to the bottom, turn the second screw into the through groove below the second locking section. Finally, grasp the rotating part to drive the threaded seat to tighten until it fits against the second locking section. It has an elastic compensation function, which automatically compensates for the gap when displacement occurs due to thermal expansion and contraction, avoiding loosening or excessive compression, and has good flexibility. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a top sectional view of the present invention;

[0021] Figure 3 This is the utility model Figure 2 Enlarged diagram of point A in the middle.

[0022] Reference numerals in the attached drawings: 1. First locking segment; 2. Fixing frame; 3. Fixing plate; 4. Connecting plate; 5. First screw; 6. Nut; 7. Second locking segment; 8. Third locking segment; 9. Second screw; 10. Threaded seat; 11. Limiting plate; 12. Fixing spring; 13. Damper; 14. Spring washer; 15. Mounting groove; 16. Rotating component. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings.

[0024] Example 1:

[0025] refer to Figure 1 , Figure 2 and Figure 3 A segmented clamp for a diesel engine exhaust pipe includes a first clamp segment 1, a fixing bracket 2 welded to the back of the first clamp segment 1, a fixing plate 3 set on the back of the fixing bracket 2, and connecting plates 4 symmetrically installed on the front of the fixing plate 3. First screws 5 are welded to both sides of the fixing bracket 2, and nuts 6 are threaded to the other end of the first screws 5. The clamp is placed on the exhaust pipe by pulling apart the second clamp segment 7 and the third clamp segment 8. After the clamp is placed, the position of the first clamp segment 1 is adjusted to be at the top. Then, the fixing plate 3 is pulled upwards. When the fixing plate 3 is pulled upwards, it will drive the two connecting plates 4 to move upwards. When the fixing plate 3 is pulled all the way up and fits against the bottom of the frame, it is fixed with screws. Finally, the nuts 6 are tightened. This design achieves good positioning, limits excessive shaking of the internal pipes, enhances overall stability, and provides high safety.

[0026] refer to Figure 3 A spring washer 14 is slidably fitted onto the surface of the first screw 5. The spring washer 14 is located between the connecting plate 4 and the nut 6. By setting the spring washer 14, the fixing effect of the nut 6 after tightening can be improved, and it plays the role of shockproof and anti-loosening.

[0027] refer to Figure 1 and Figure 2 The front of the mounting plate 3 has two mounting slots 15. The mounting slots 15 make it easy for personnel to connect the mounting plate 3 to the frame with screws, reducing the trouble of temporary drilling.

[0028] refer to Figure 1 and Figure 3 Both the first screw 5 and the nut 6 are made of stainless steel, and the first screw 5 and the nut 6 have the characteristics of high strength, low density and excellent corrosion resistance.

[0029] Brief description of the usage process: Pull the second clip 7 and the third clip 8 apart and place them on the exhaust pipe. After the clamp is placed, adjust the position of the first clip 1 so that it is at the top. Then pull the fixing plate 3 up. When the fixing plate 3 is pulled up, it will drive the two connecting plates 4 to move upward. When the fixing plate 3 is pulled up to the bottom and fits against the bottom of the frame, fix it with screws. Finally, tighten the nut 6.

[0030] Example 2:

[0031] refer to Figure 1 and Figure 2 A segmented clamp for a diesel engine exhaust pipe, wherein a second segment 7 and a third segment 8 are rotatably connected inside a first segment 1 via a rotating shaft, and a second screw 9 is rotatably connected inside the third segment 8. A threaded seat 10 is threaded onto the surface of the second screw 9. Limiting plates 11 are provided inside each of the first segment 1, second segment 7, and third segment 8. A fixing spring 12 is bolted to the other side of the limiting plate 11 and the first segment 1, second segment 7, and third segment 8 via a spring fixing plate. The clamp can be tightened by manually gripping the second segment 7 and the third segment 8. When the lower end is pulled down, the second locking section 7 and the third locking section 8 are pulled down and pressed tightly. The limiting plate 11 is pushed inward by the pipe. After the limiting plate 11 is pushed in, it will compress the fixed spring 12 and the damper 13, causing them to contract. When the second locking section 7 and the third locking section 8 are pulled down to the bottom, the second screw 9 is turned into the through groove below the second locking section 7. Finally, the rotating part 16 is grasped to drive the threaded seat 10 to tighten until it fits with the second locking section 7. It has an elastic compensation function, which automatically compensates for the gap when displacement occurs due to thermal expansion and contraction, avoiding loosening or excessive compression, and has good flexibility.

[0032] refer to Figure 2 A damper 13 is installed on the other side of the limiting plate 11 between the first locking segment 1, the second locking segment 7 and the third locking segment 8. The damper 13 can be used to suppress the jumping of the fixed spring 12 and consume the kinetic energy stored in the fixed spring 12, thereby reducing the resonance amplitude and improving stability.

[0033] refer to Figure 1 and Figure 2 One side of the threaded seat 10 is integrally formed with a rotating part 16. The rotating part 16 makes it easy for personnel to rotate the threaded seat 10.

[0034] Brief description of the usage process: By grasping the lower ends of the second locking segment 7 and the third locking segment 8 and pulling them down, the limiting plate 11 will be pushed inward by the pipe when the second locking segment 7 and the third locking segment 8 are pulled down and pressed tightly. After the limiting plate 11 is pushed inward, it will compress the fixed spring 12 and the damper 13, causing them to contract. When the second locking segment 7 and the third locking segment 8 are pulled down to the bottom, the second screw 9 will be turned into the through groove below the second locking segment 7. Finally, grasp the rotating part 16 to drive the threaded seat 10 to tighten until it fits with the second locking segment 7.

[0035] It should be noted that parts have a lifespan and can be replaced during regular maintenance when they no longer meet performance requirements. Deterioration in performance due to prolonged use of parts is not a design defect of this application.

[0036] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A segmented clamp for a diesel engine exhaust pipe, comprising a first clamping segment (1), characterized in that: A fixing frame (2) is welded to the back of the first card segment (1). A fixing plate (3) is provided on the back of the fixing frame (2). A connecting plate (4) is symmetrically installed on the front of the fixing plate (3). A first screw (5) is welded to both sides of the fixing frame (2). A nut (6) is threaded to the other end of the first screw (5). A second card segment (7) and a third card segment (8) are rotatably connected to the inside of the first card segment (1) through a rotating shaft. A second screw (9) is rotatably connected to the inside of the third card segment (8). A threaded seat (10) is threaded to the surface of the second screw (9). A limit plate (11) is provided inside the first card segment (1), the second card segment (7), and the third card segment (8). A fixing spring (12) is bolted to the other side of the limit plate (11) and the first card segment (1), the second card segment (7), and the third card segment (8) through a spring fixing plate.

2. The diesel engine exhaust pipe segment clamp according to claim 1, characterized in that: A damper (13) is installed between the other side of the limiting plate (11) and the first locking segment (1), the second locking segment (7) and the third locking segment (8).

3. The diesel engine exhaust pipe segment clamp according to claim 1, characterized in that: A spring washer (14) is slidably sleeved on the surface of the first screw (5), and the spring washer (14) is located between the connecting plate (4) and the nut (6).

4. A segmented clamp for a diesel engine exhaust pipe according to claim 1, characterized in that: The front of the fixing plate (3) has two mounting slots (15).

5. A segmented clamp for a diesel engine exhaust pipe according to claim 1, characterized in that: One side of the threaded seat (10) has an integrally formed rotating part (16).

6. A segmented clamp for a diesel engine exhaust pipe according to claim 1, characterized in that: The first screw (5) and nut (6) are both made of stainless steel.

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