Reset device and reset method for throttle lever of diesel engine

Abstract

The invention relates to the technical field of diesel engine parts, in particular to a reset device of a diesel engine throttle lever and a reset method.The reset device comprises a box body, a throttle lever operating mechanism, a limiting mechanism and a reset mechanism, the throttle lever operating mechanism comprises a sleeve, a telescopic rod and a first spring, and the other end of the sleeve is inserted into the telescopic rod; the sleeve is sleeved with the first spring, the two ends of the first spring are connected with the sleeve and the telescopic rod respectively, the limiting mechanism is rotationally connected with the box body, the limiting mechanism is inserted into the telescopic rod and connected with the telescopic rod, and the reset mechanism is rotationally connected with the box body and connected with the telescopic rod. Through mutual cooperation of the limiting mechanism and the resetting mechanism, the first spring can be adjusted from a normal state to a compressed state, and the compressed first spring is limited, so that closing of a diesel engine accelerator is achieved, resetting of the accelerator lever is achieved, and the resetting precision of the diesel engine accelerator is improved.

Description

Technical Field

[0001] This invention relates to the field of diesel engine component technology, and in particular to a diesel engine throttle lever reset device and reset method. Background Technology

[0002] The reset mechanism is a crucial control component in internal combustion engine systems such as diesel engines, primarily used for precise throttle control and rapid reset. During diesel engine operation, throttle control directly impacts engine power output and operational stability. The reset mechanism ensures that the throttle returns to a safe position quickly and accurately after operation, preventing engine malfunction, increased fuel consumption, or safety hazards caused by throttle jamming or delayed reset. Therefore, the performance of the reset mechanism directly affects the diesel engine's handling, safety, and fuel economy.

[0003] Currently, the reset mechanisms commonly used in diesel engines mainly rely on spring reset mechanisms. Their basic principle is to use the elastic force of the spring to pull the throttle lever back to its initial position. Common reset mechanisms include:

[0004] 1. Simple spring reset mechanism: The reset function is achieved by a single spring. The structure is simple, but the reset speed is slow, the accuracy is low, and the spring is easily worn out due to fatigue.

[0005] 2. Mechanical locking reset mechanism: The throttle position is fixed by a mechanical locking device (e.g., a buckle or a pin). With this design, manual unlocking is required to reset, which is cumbersome and poses a risk of misoperation.

[0006] 3. Hydraulic or pneumatic reset mechanism: Reset is achieved using a hydraulic or pneumatic system. The reset speed is relatively fast, but its structure is complex, the cost is high, and it has high requirements for sealing and is difficult to maintain. Summary of the Invention

[0007] In view of the shortcomings of the existing production technology, the applicant provides a reset device and method for a diesel engine throttle lever. By improving the diesel engine throttle reset method, the structure of the reset device is simplified, the reset accuracy of the diesel engine throttle is improved, and the safety of the diesel engine throttle reset operation is improved at the same time.

[0008] The technical solution adopted in this invention is as follows:

[0009] A reset device for a diesel engine throttle lever is disclosed. The reset device is installed between an actuator housing and the throttle lever, and is connected to the actuator housing. The drive end of the reset device is connected to the throttle lever. The device includes a housing, a throttle lever operating mechanism, a limiting mechanism, and a reset mechanism. The throttle lever operating mechanism passes through the housing and includes a sleeve, a telescopic rod, and a first spring. One end of the sleeve is connected to the actuator housing, and the other end of the sleeve is inserted into and slidably connected to the telescopic rod. The first spring is sleeved on the sleeve. The external part of the first spring is connected to the sleeve and the telescopic rod respectively. The end of the telescopic rod away from the sleeve is connected to the throttle lever. The limiting mechanism is rotatably connected to the housing. The limiting mechanism is inserted into the telescopic rod and connected to the telescopic rod. The limiting mechanism is used to switch the throttle lever from the reset state to the operating state to start the diesel engine throttle. The reset mechanism is rotatably connected to the housing and connected to the telescopic rod. The reset mechanism is used to switch the throttle lever operating state to the reset state to close the diesel engine throttle.

[0010] Therefore, by cooperating with the first spring, the limiting mechanism, and the reset mechanism, this method has a simpler structure and is easier to operate compared to existing reset methods. The limiting mechanism can adjust the first spring from a compressed state to a normal state to enable the diesel engine throttle to start. By cooperating with the limiting mechanism and the reset mechanism, the first spring can be adjusted from a normal state to a compressed state, and the compressed first spring is limited to close the diesel engine throttle and simultaneously reset the throttle lever. This simplifies the structure of the reset device, improves the reset accuracy of the diesel engine throttle, and enhances the safety of the diesel engine throttle reset operation.

[0011] As a further improvement to the above technical solution: the limiting mechanism includes a first rotating rod, a limiting block, and an adjusting block. The first rotating rod is connected to the housing. The limiting block is installed at one end of the first rotating rod and inserted into the telescopic rod, and is connected to the limiting block. The adjusting block is installed at the other end of the first rotating rod, passes through the housing, and is slidably connected to the housing. Therefore, the position of the limiting block can be adjusted by the adjusting rod to adjust the first spring from a compressed state to a normal state.

[0012] As a further improvement to the above technical solution, the limiting mechanism further includes a second spring, which is sleeved on the outside of the adjusting block, and both ends of the second spring are connected to the housing and the adjusting block, respectively. Thus, because the second spring has a certain degree of elasticity, it can adjust the rotation of the first rotating rod, so that the limiting block, which has been released from the telescopic rod, can automatically re-insert into the telescopic rod, thereby achieving automatic reset of the throttle lever.

[0013] As a further improvement to the above technical solution: the reset mechanism includes a second rotating rod, a gear, and a rack. The second rotating rod passes through the housing and is rotatably connected to the housing. The second rotating rod passes through the gear, which meshes with the rack. The rack is located outside the sleeve and is connected to the other end of the telescopic rod. Thus, through the cooperation of the second rotating rod, the gear, and the rack, the telescopic rod moves away from the throttle lever. Once the limiting block, which has been freed from the telescopic rod's restraint, automatically re-inserts into the telescopic rod, the throttle lever can be automatically reset.

[0014] As a further improvement to the above technical solution: the reset mechanism further includes: a locking plate, a pawl, a torsion spring, and a ratchet. The locking plate, the pawl, the torsion spring, and the ratchet are all located outside the housing. The locking plate and the pawl are both mounted on the second rotating rod and rotatably connected to it. The two ends of the torsion spring are respectively connected to the pawl and the housing. The ratchet passes through the second rotating rod and is rotatably connected to it. The ratchet is connected to the second rotating rod. The locking... The plate engages with one end of the pawl portion, and the ratchet engages with the other end of the pawl portion; the pawl portion includes: a first engaging portion, a third rotating rod, and a second engaging portion, the third rotating rod passing through the second rotating rod and rotatably connected to the second rotating rod, the first engaging portion and the second engaging portion being connected to both ends of the third rotating rod respectively, and the first engaging portion engaging with the locking plate, the second engaging portion engaging with the ratchet, and both ends of the torsion spring being connected to the first engaging portion and the second rotating rod respectively. Therefore, when the diesel engine throttle is activated, the wave-pulling locking plate disengages from the first engaging part and the second engaging part from the ratchet, thus preventing the entire reset mechanism from interfering with the throttle lever's activation. When the diesel engine throttle is engaged, the wave-pulling locking plate engages with the first engaging part and the second engaging part with the ratchet, thus limiting the second lever's position and ensuring that the reverse force of the first spring does not affect the throttle's closure. Furthermore, after the throttle lever is reset, the interaction between the limiting block and the limiting groove, the locking plate and the first engaging part, and the second engaging part and the ratchet further enhances the limiting effect of the throttle lever after reset.

[0015] As a further improvement to the above technical solution, it also includes a micro switch, which is installed on the side wall of the housing near the other end of the telescopic rod. Thus, the micro switch can monitor the movement position of the telescopic rod, thereby monitoring the movement state of the throttle lever, and consequently monitoring the opening and closing of the diesel engine throttle.

[0016] As a further improvement to the above technical solution, it also includes: an adjusting nut, which is threadedly connected to the sleeve, and the first spring is connected to the adjusting nut. Thus, the compression of the first spring can be adjusted by the adjusting nut to accommodate the starting and stopping operations of the throttle in different types of diesel engines.

[0017] A method for resetting a diesel engine throttle lever reset device includes the following steps:

[0018] S1. In the initial state: the other end of the limiting mechanism is inserted into the telescopic rod so that the first spring is in a compressed state, the throttle lever is in a reset state, and the diesel engine throttle is in a closed state.

[0019] S2. When starting the diesel engine throttle, press the torsion spring limiting mechanism so that the torsion spring telescopic rod is released from the restraint of the torsion spring limiting mechanism. The first torsion spring adjusts from the shortened state to the extended state, so as to drive the torsion spring telescopic rod to move closer to the throttle rod, so as to drive the throttle rod to move closer to the diesel engine throttle, so as to start the diesel engine throttle using the throttle rod.

[0020] S3. When the diesel engine throttle is closed, rotate the reset mechanism to move the torsion spring telescopic rod away from the throttle lever, thereby moving the throttle lever away from the diesel engine throttle. This allows the throttle lever to close the diesel engine throttle. During the movement of the torsion spring telescopic rod away from the throttle lever, one end of the torsion spring limiting mechanism is reinserted into the torsion spring telescopic rod, causing the first torsion spring to change from the extended state to the shortened state, the throttle lever to the reset state, and the diesel engine throttle to the closed state. This achieves the reset of the throttle lever and limits its movement.

[0021] As a further improvement to the above technical solution: In S1, in the initial state, the locking plate is engaged with the first locking part, and the second locking part is engaged with the ratchet; In S2, the adjusting block is pressed towards the side closer to the first rotating rod, and the second spring is adjusted from the normal state to the compressed state, so that the first rotating rod rotates, thereby driving the limiting block to rotate away from the telescopic rod, so that the telescopic rod is released from the constraint of the limiting block; In S2, the locking plate is oscillated, so that the locking plate is released from the constraint of the first locking part and the second locking part is released from the constraint of the ratchet.

[0022] As a further improvement to the above technical solution: In S3, after the limiting block is re-inserted into the telescopic rod, the second spring is adjusted from the compressed state to the normal state, so that the first rotating rod rotates, thereby driving the limiting block to rotate towards the side closer to the telescopic rod, so that the limiting block is re-inserted into the telescopic rod, so that the first spring changes from the extended state to the shortened state, the throttle lever is in the reset state, and the diesel engine throttle is in the closed state, thereby realizing the reset of the throttle lever and limiting the throttle lever; In S3, the locking piece is oscillated again, so that the locking piece is re-inserted into the first locking part and the second locking part is re-inserted into the ratchet.

[0023] The beneficial effects of this invention are as follows:

[0024] By cooperating with the first spring, the limiting mechanism, and the reset mechanism, this method has a simpler structure and is easier to operate compared to existing reset methods. The limiting mechanism can adjust the first spring from a compressed state to a normal state to enable the diesel engine throttle to start. By cooperating with the limiting mechanism and the reset mechanism, the first spring can be adjusted from a normal state to a compressed state, and the compressed first spring is limited to close the diesel engine throttle and simultaneously reset the throttle lever. This simplifies the structure of the reset device, improves the reset accuracy of the diesel engine throttle, and enhances the safety of the diesel engine throttle reset operation.

[0025] The present invention also includes the following advantages:

[0026] 1. The present invention allows the position of the limiting block to be adjusted by adjusting the adjusting rod, so as to adjust the first spring from the compressed state to the normal state; the second spring, due to its certain elasticity, can adjust the rotation of the first rotating rod, so as to automatically reinsert the limiting block, which is freed from the telescopic rod, into the telescopic rod, thereby realizing the automatic reset of the throttle lever.

[0027] 2. The present invention uses the cooperation of the second rotating rod, gear and rack to make the telescopic rod move away from the throttle rod. Once the limiting block that has been freed from the telescopic rod is automatically reinserted into the telescopic rod, the throttle rod can be automatically reset.

[0028] 3. When the diesel engine throttle is activated, the present invention uses a wave-like locking plate to disengage the locking plate from the first engaging part and the second engaging part from the ratchet, thus ensuring that the entire reset mechanism does not interfere with the activation of the throttle lever. When the diesel engine throttle is engaged, the wave-like locking plate engages with the first engaging part and the second engaging part with the ratchet, thus limiting the second lever to ensure that the throttle closure is not affected by the reverse force of the first spring. Furthermore, after the throttle lever is reset, the mutual cooperation between the limiting block and the limiting groove, the locking plate and the first engaging part, and the second engaging part and the ratchet further enhance the limiting effect of the throttle lever after reset. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of the diesel engine throttle lever reset device of the present invention;

[0030] Figure 2 This is an exploded view from a first perspective of the diesel engine throttle lever reset device of the present invention;

[0031] Figure 3 This is an exploded view from a second perspective of the diesel engine throttle lever reset device of the present invention;

[0032] Figure 4 This is an exploded view of the throttle lever operating mechanism of the present invention;

[0033] Figure 5 An exploded view showing the installation of the telescopic rod and the limiting mechanism of the present invention.

[0034] Figure 6 An exploded view from a first perspective of the installation of the telescopic rod and the reset mechanism of the present invention;

[0035] Figure 7 An exploded view from a second perspective of the installation of the telescopic rod and the reset mechanism of the present invention;

[0036] Figure 8 This is a schematic diagram of the pawl portion of the present invention;

[0037] Figure 9 A schematic diagram showing the installation effect of the diesel engine throttle lever reset device of the present invention;

[0038] Figure 10 This is a flowchart of the reset method of the diesel engine throttle lever reset device of the present invention.

[0039] Among them: 1. Box body;

[0040] 2. Throttle lever operating mechanism;

[0041] 201. Sleeve; 202. Telescopic rod; 2021. Limiting groove; 203. First spring;

[0042] 3. Limiting mechanism;

[0043] 301. First rotating rod; 302. Limiting block; 303. Adjusting block; 304. Second spring;

[0044] 4. Reset mechanism;

[0045] 401. Second rotating rod; 402. Gear; 403. Rack; 404. Locking plate; 405. Pawl part; 4051. First locking part; 40511. Slot; 4052. Third rotating rod; 4053. Second locking part; 406. Torsion spring; 407. Ratchet;

[0046] 5. Micro switch;

[0047] 6. Adjusting nut. Detailed Implementation

[0048] The specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0049] like Figures 1 to 9As shown, a reset device for a diesel engine throttle lever is installed between the actuator housing and the throttle lever, and the reset device is connected to the actuator housing. The drive end of the reset device is connected to the throttle lever. The device includes: a housing 1, a throttle lever operating mechanism 2, a limiting mechanism 3, and a reset mechanism 4. The throttle lever operating mechanism 2 penetrates the housing 1 and includes: a sleeve 201, a telescopic rod 202, and a first spring 203. One end of the sleeve 201 is connected to the actuator housing, and the other end of the sleeve 201 is inserted into the telescopic rod 202 and slidably connected to it. The first spring 203 is sleeved... The first spring 203 is located outside the sleeve 201, and its two ends are connected to the sleeve 201 and the telescopic rod 202 respectively. The end of the telescopic rod 202 away from the sleeve 201 is connected to the throttle lever. The limiting mechanism 3 is rotatably connected to the housing 1. The limiting mechanism 3 is inserted into the telescopic rod 202 and connected to the telescopic rod 202. The limiting mechanism 3 is used to switch the throttle lever from the reset state to the operating state to start the diesel engine throttle. The reset mechanism 4 is rotatably connected to the housing 1 and connected to the telescopic rod 202. The reset mechanism 4 is used to switch the throttle lever from the operating state to the reset state to close the diesel engine throttle. Therefore, through the cooperation of the first spring 203, the limiting mechanism 3, and the reset mechanism 4, this method has a simpler structure and is easier to operate compared to existing reset methods. The limiting mechanism 3 can adjust the first spring 203 from a compressed state to a normal state to start the diesel engine throttle. Through the cooperation of the limiting mechanism 3 and the reset mechanism 4, the first spring 203 can be adjusted from a normal state to a compressed state, and the compressed first spring 203 is limited to close the diesel engine throttle and reset the throttle lever at the same time. This simplifies the structure of the reset device, improves the reset accuracy of the diesel engine throttle, and improves the safety of the diesel engine throttle reset operation (i.e., the throttle lever can quickly and accurately return to the reset position (i.e., the safe position), avoiding increased engine fuel consumption or even engine loss of control due to untimely reset).

[0050] In other words, this solution can control the diesel engine throttle through the cooperation of the limiting mechanism 3 and the reset mechanism 4, without the need for complicated unlocking steps, thus simplifying the structure of the entire reset device and improving the user experience.

[0051] It should be noted that:

[0052] 1. The throttle lever reset state refers to the following state: the limit block 302 is inserted into the limit groove 2021, the locking piece 404 is engaged with the first locking part 4051, the second locking part 4053 is engaged with the ratchet 407, the first spring 203 is in a compressed state, and the throttle lever is not in contact with the diesel engine throttle.

[0053] II. The throttle lever operation state refers to the state in which the telescopic lever 202 is released from the restraint of the limit block 302, the locking plate 404 is released from the restraint of the first locking part 4051, the second locking part 4053 is released from the restraint of the ratchet 407, the first spring 203 is in the normal state, and the throttle lever is in contact with the diesel engine throttle.

[0054] In this embodiment, the limiting mechanism 3 includes: a first rotating rod 301, a limiting block 302, an adjusting block 303, and a second spring 304. The first rotating rod 301 is connected to the housing 1. The limiting block 302 is installed at one end of the first rotating rod 301 and is inserted into the telescopic rod 202 and connected to the limiting block 302. The adjusting block 303 is installed at the other end of the first rotating rod 301 and passes through the housing 1 and is slidably connected to the housing 1. The second spring 304 is sleeved on the outside of the adjusting block 303, and both ends of the second spring 304 are connected to the housing 1 and the adjusting block 303, respectively. Therefore, the position of the limiting block 302 can be adjusted by adjusting the adjusting rod to adjust the first spring 203 from the compressed state to the normal state; the second spring 304, due to its certain elasticity, can adjust the rotation of the first rotating rod 301 so that the limiting block 302, which is freed from the restraint of the telescopic rod 202, can be automatically reinserted into the telescopic rod 202, thus realizing the automatic reset of the throttle lever.

[0055] Specifically, a limiting groove 2021 is provided on the outer peripheral surface of the telescopic rod 202. When the limiting block 302 is inserted into the limiting groove 2021, the throttle rod is in the reset state. Through the mutual cooperation between the limiting block 302 and the limiting groove 2021, the throttle rod can be limited (that is, the throttle rod is indirectly limited by directly limiting the telescopic rod 202).

[0056] Specifically: The adjustment block 303 adopts both manual triggering and electronic firing modes. The manual triggering mode ensures that manual operation can be performed when the electronic firing mode fails, while the electronic firing mode enables automatic start of the diesel engine throttle. The manual triggering mode is triggered by the operator manually pressing the adjustment block 303, while the electronic firing mode is triggered by operating the adjustment block 303 using the electronic firing button.

[0057] In this embodiment, the reset mechanism 4 includes: a second rotating rod 401, a gear 402, a rack 403, a locking plate 404, a pawl 405, a torsion spring 406, and a ratchet 407. The second rotating rod 401 passes through the housing 1 and is rotatably connected to the housing 1. The second rotating rod 401 passes through the gear 402, and the gear 402 meshes with the rack 403. The rack 403 is located outside the sleeve 201 and is connected to the other end of the telescopic rod 202. The locking plate 404, the pawl 405, the torsion spring 406, and the ratchet 407 are all located outside the housing 1. The locking plate 404 and the pawl 405 are both mounted on the second rotating rod 401 and are rotatably connected to the second rotating rod 401. The two ends of the torsion spring 406 are respectively connected to the pawl 405 and the housing 1. The ratchet 407 passes through the second rotating rod 401. The second rotating rod 401 is rotatably connected to the second rotating rod 401. The ratchet 407 is connected to the second rotating rod 401. The locking plate 404 is engaged with one end of the pawl portion 405, and the ratchet 407 is engaged with the other end of the pawl portion 405. The pawl portion 405 includes: a first engaging portion 4051, a third rotating rod 4052, and a second engaging portion 4053. The third rotating rod 4052 passes through the second rotating rod 401 and is rotatably connected to the second rotating rod 401. The first engaging portion 4051 and the second engaging portion 4053 are respectively connected to both ends of the third rotating rod 4052. The first engaging portion 4051 is engaged with the locking plate 404, and the second engaging portion 4053 is engaged with the ratchet 407. The two ends of the torsion spring 406 are respectively connected to the first engaging portion 4051 and the second rotating rod 401. Thus, through the mutual cooperation of the second rotating rod 401, gear 402, and rack 403, the telescopic rod 202 moves away from the throttle lever. Once the limiting block 302, freed from the restraint of the telescopic rod 202, automatically re-inserts into the telescopic rod 202, the throttle lever automatically resets. When the diesel engine throttle is activated, the wave-operating locking plate 404 disengages from the first engaging part 4051 and the second engaging part 4053 disengages from the ratchet 407, ensuring the entire reset mechanism 4 does not interfere with the throttle lever's activation. When the diesel engine throttle is engaged, the wave-operating locking plate 404 engages with the first engaging part 4051 and the second engaging part 4053 engages with the ratchet 407. The wheel 407 engages with the throttle, thus limiting the second lever 401 to ensure that the diesel engine throttle closure is not affected by the reverse force of the first spring 203. Simultaneously, after the throttle lever is reset, the engagement of the limiting block 302 and the limiting groove 2021, the engagement of the locking plate 404 and the first engaging part 4051, and the engagement of the second engaging part 4053 and the ratchet 407 further enhance the limiting effect of the throttle lever after reset (i.e., through the engagement of the locking plate 404, the pawl part 405, and the ratchet 407, the second lever 401 is prevented from reversing (i.e., preventing rotation during the throttle lever reset), thereby reducing operational risks and ensuring operational safety.

[0058] Specifically, the torsion spring 406 can constrain the pawl portion 405 to ensure that when the locking piece 404 is engaged in the first engaging portion 4051, the torsion spring 406 can press down on the first engaging portion 4051, and the locking piece will not disengage from the first engaging portion 4051, thereby improving the engagement constraint effect between the locking piece 404 and the first engaging portion 4051.

[0059] Specifically, the first snap-fit ​​part 4051 has a snap-fit ​​groove 40511, through which the snap-fit ​​piece 404 and the first snap-fit ​​part 4051 are snapped together.

[0060] Specifically, the housing 1 is provided with positioning holes for the positioning telescopic rod 202 and the gear 402, so that the gear 402 and the rack 403 can be accurately positioned to reduce friction and wear during the movement process, thereby extending the service life of the entire reset device.

[0061] Specifically, the part of the second lever 401 located outside the housing 1 is provided with an adjustment knob. The outer circumference of the adjustment knob is provided with anti-slip texture to increase the grip of the throttle lever reset operation, prevent slippage, and thus improve the convenience and safety of the reset operation. The locking plate 404 and the pawl part 405 are both installed on the adjustment knob.

[0062] Specifically, gear 402 is made of high-strength alloy materials (e.g., 20CrMnTi, 20CrMo, 20CrNiMo, 20CrMnMoH) to improve the wear resistance and fatigue resistance of gear 402, so that it can still maintain accurate transmission performance after long-term use.

[0063] Specifically, the housing 1 has a lubricating grease injection hole, which facilitates regular lubrication and maintenance of the gear 402 and rack 403 to reduce mechanical wear and ensure that the entire reset device can operate stably for a long time.

[0064] It should be noted that:

[0065] 1. When starting the diesel engine throttle, simply press the adjusting block 303 towards the side closest to the sleeve 201 (i.e., inward) to rotate the first rotating rod 301, thereby causing the limiting block 302 to rotate away from the telescopic rod 202. After the limiting block 302 is released from the restraint of the limiting groove 2021, the first spring 203, which is in a compressed state, needs to return to its state, which will cause the telescopic rod 202 to move towards the side closer to the throttle lever, and then drive the throttle lever towards the side closer to the diesel engine throttle. In this way, the diesel engine throttle can be started (i.e., the control of starting the diesel engine throttle can be realized). In addition, during this process, the locking plate 404 is vibrated so that the locking plate 404 is released from the restraint of the first locking part 4051 and the second locking part 4053 is released from the restraint of the ratchet 407. The reset mechanism 4 will not affect the starting of the diesel engine throttle.

[0066] When the diesel engine throttle is closed, simply rotate the second lever 401 to rotate the gear 402. Since the gear 402 meshes with the rack 403, the rotation of the gear 402 drives the rack 403 to move, thus moving the telescopic lever 202 away from the throttle lever. During this process, the limiting block 302 remains in contact with the outer circumferential surface of the telescopic lever 202. When the limiting groove 2021 on the telescopic lever 202 moves to the position corresponding to the limiting block 302, the limiting block 302, due to the second spring 304 being compressed, needs to return to its original state, causing the first lever 301 to rotate. This, in turn, causes the limiting block 302 to rotate closer to the telescopic lever 202, allowing the limiting block 302 to re-insert into the limiting groove 2021. (The rotation of the limiting block 302 is due to the second spring 304 being compressed.) Spring 304 rotates automatically to restore its state (i.e., automatic limit after reset). When limit block 302 is reinserted into limit groove 2021, telescopic rod 202 is locked (i.e., it will not move towards or away from the throttle lever). Telescopic rod 202 is limited by limit block 302, thus realizing the reset operation of throttle lever and the limit operation after the reset operation (i.e., after the throttle lever is reset to a specific position (i.e., the position of limit groove 2021), it will not move towards or away from the throttle lever without the action of external force). In addition, during this process, locking plate 404 is vibrated again so that locking plate 404 is reinserted into first locking part 4051 and second locking part 4053 is reinserted into ratchet 407, so that second rotating rod 401 will not rotate in the opposite direction (i.e., the diesel engine throttle will not be affected by the reverse force of first spring 203).

[0067] It also includes a micro switch 5, which is installed on the side wall of the housing 1 near the other end of the telescopic rod 202. Thus, the micro switch 5 can monitor the movement position of the telescopic rod 202, thereby monitoring the movement state of the throttle lever, and consequently monitoring the opening and closing of the diesel engine throttle.

[0068] In this embodiment, an adjusting nut 6 is further included, which is threadedly connected to the sleeve 201, and the first spring 203 is connected to the adjusting nut 6. Thus, the compression of the first spring 203 can be adjusted via the adjusting nut 6 to accommodate the starting and stopping operations of different diesel engine throttle models.

[0069] Specifically, since the adjusting nut 6 is threadedly connected to the sleeve 201, in the initial state, by rotating the adjusting nut 6, the position of the adjusting nut 6 relative to the sleeve 201 can be adjusted. In this way, the compression of the adjusting nut 6 relative to the first spring 203 can be adjusted, thereby satisfying the start and stop operations of the throttle of different models of diesel engines.

[0070] The working process of the diesel engine throttle of this invention is as follows: First, in the initial state, the limiting block 302 is inserted into the limiting groove 2021, the first spring 203 is in a shortened state, and the diesel engine throttle is in a closed state. Next, when it is necessary to start the diesel engine throttle, the adjusting block 303 is pressed towards the side near the telescopic rod 202, so that the limiting block 302 is freed from the constraint of the limiting groove 2021. The first spring 203, which is in a compressed state, needs to return to its state, which will drive the telescopic rod 202 to move towards the side near the throttle lever, thereby driving the throttle lever to move towards the side near the diesel engine throttle. At the same time, the locking plate 404 is activated, so that the locking plate 404 is released from the constraint of the first locking part 4051 and the second locking part 4053 is released from the constraint of the ratchet 407. In this way, the diesel engine throttle can be started. Finally, when it is necessary to shut off the diesel engine throttle... When the throttle is closed, the second lever 401 is rotated, and the gear 402 and rack 403 cooperate to move the telescopic lever 202 away from the throttle lever, so that the throttle lever moves away from the diesel engine throttle. In this way, the diesel engine throttle can be closed. When the limiting groove 2021 of the telescopic lever 202 moves to the position corresponding to the limiting block 302, the second spring 304, which is in a compressed state, needs to return to its state and will drive the limiting block 302 to rotate towards the telescopic lever 202. When the limiting block 302 is re-inserted into the limiting groove 2021, at the same time, the locking piece 404 is vibrated again, so that the locking piece 404 is re-inserted into the first locking part 4051 and the second locking part 4053 is re-inserted into the ratchet 407, thus realizing the throttle lever reset operation and the limiting operation after the reset operation.

[0071] like Figure 10As shown, a reset method for a diesel engine throttle lever reset device includes the following steps:

[0072] S1. In the initial state: the other end of the limiting mechanism 3 is inserted into the telescopic rod 202 so that the first spring 203 is in a compressed state, the throttle lever is in a reset state, and the diesel engine throttle is in a closed state.

[0073] S2. When the diesel engine throttle is started, the limit mechanism 3 is pressed to release the telescopic rod 202 from the restraint of the limit mechanism 3. The first spring 203 is adjusted from the shortened state to the extended state to drive the telescopic rod 202 to move closer to the throttle lever, so as to drive the throttle lever to move closer to the diesel engine throttle, so as to start the diesel engine throttle using the throttle lever.

[0074] S3. When the diesel engine throttle is closed, the reset mechanism 4 is rotated to move the telescopic rod 202 away from the throttle lever, thereby moving the throttle lever away from the diesel engine throttle. The throttle lever is used to close the diesel engine throttle. During the process of the telescopic rod 202 moving away from the throttle lever, one end of the limiting mechanism 3 is re-inserted into the telescopic rod 202, so that the first spring 203 changes from the extended state to the shortened state, the throttle lever is in the reset state, and the diesel engine throttle is in the closed state, thereby realizing the reset of the throttle lever and limiting the throttle lever.

[0075] In this embodiment, in S1, in the initial state, the locking plate 404 is engaged with the first engaging part 4051, and the second engaging part 4053 is engaged with the ratchet 407; in S2, the adjusting block 303 is pressed towards the side closer to the first rotating rod 301, and the second spring 304 is adjusted from the normal state to the compressed state, so that the first rotating rod 301 rotates, thereby driving the limiting block 302 to rotate away from the telescopic rod 202, so that the telescopic rod 202 is released from the restraint of the limiting block 302; in S2, the locking plate 404 is undulated, so that the locking plate 404 is released from the restraint of the first engaging part 4051 and the second engaging part 4053 is released from the restraint of the ratchet 407.

[0076] In this embodiment, in S3, the limiting block 302 is re-inserted into the telescopic rod 202, and the second spring 304 is adjusted from the compressed state to the normal state, so that the first rotating rod 301 rotates, thereby driving the limiting block 302 to rotate towards the side closer to the telescopic rod 202, so that the limiting block 302 is re-inserted into the telescopic rod 202, so that the first spring 203 is adjusted from the extended state to the shortened state, the throttle lever is in the reset state, and the diesel engine throttle is in the closed state, so as to realize the reset of the throttle lever and limit the throttle lever; in S3, the locking piece 404 is undulated again, so that the locking piece 404 is re-inserted into the first locking part 4051 and the second locking part 4053 is re-inserted into the ratchet 407.

[0077] In summary, the present invention, through the cooperation of the first spring 203, the limiting mechanism 3, and the reset mechanism 4, has a simpler structure and is easier to operate compared to existing reset methods. The limiting mechanism 3 can adjust the first spring 203 from a compressed state to a normal state to enable the diesel engine throttle to start. Through the cooperation of the limiting mechanism 3 and the reset mechanism 4, the first spring 203 can be adjusted from a normal state to a compressed state, and the compressed first spring 203 is limited to close the diesel engine throttle and simultaneously reset the throttle lever. This simplifies the structure of the reset device, improves the reset accuracy of the diesel engine throttle, and enhances the safety of the diesel engine throttle reset operation.

[0078] The above description is an explanation of the present invention and not a limitation thereof. The scope of the present invention is defined by the claims. Within the scope of protection of the present invention, any form of modification may be made.

Claims

1. A reset device for a diesel engine throttle lever, wherein the reset device is installed between an actuator housing and a throttle lever, and the reset device is connected to the actuator housing, and the drive end of the reset device is connected to the throttle lever, characterized in that, include: Box (1), and A throttle lever operating mechanism (2) extends through the housing (1) and includes: The device comprises a sleeve (201), a telescopic rod (202), and a first spring (203). One end of the sleeve (201) is connected to the actuator housing, and the other end of the sleeve (201) is inserted into the telescopic rod (202) and slidably connected to the telescopic rod (202). The first spring (203) is sleeved on the outside of the sleeve (201), and both ends of the first spring (203) are connected to the sleeve (201) and the telescopic rod (202) respectively. The end of the telescopic rod (202) away from the sleeve (201) is connected to the throttle lever. Limiting mechanism (3), the limiting mechanism (3) is rotatably connected to the housing (1), the limiting mechanism (3) is inserted into the telescopic rod (202) and connected to the telescopic rod (202), the limiting mechanism (3) is used to switch the throttle lever from the reset state to the operating state to start the diesel engine throttle; The reset mechanism (4) is rotatably connected to the housing (1) and connected to the telescopic rod (202). The reset mechanism (4) is used to switch the throttle lever operation state to the reset state to close the diesel engine throttle.

2. The diesel engine throttle lever reset device as described in claim 1, characterized in that: The limiting mechanism (3) includes: The first rotating rod (301), the limiting block (302), and the adjusting block (303) are connected to the housing (1). The limiting block (302) is installed at one end of the first rotating rod (301) and is inserted into the telescopic rod (202) and connected to the limiting block (302). The adjusting block (303) is installed at the other end of the first rotating rod (301) and passes through the housing (1) and is slidably connected to the housing (1).

3. The diesel engine throttle lever reset device as described in claim 2, characterized in that: The limiting mechanism (3) also includes: The second spring (304) is sleeved on the outside of the adjusting block (303), and the two ends of the second spring (304) are respectively connected to the housing (1) and the adjusting block (303).

4. The diesel engine throttle lever reset device as described in claim 1, characterized in that: The reset mechanism (4) includes: The second rotating rod (401), the gear (402), and the rack (403) are connected. The second rotating rod (401) passes through the housing (1) and is rotatably connected to the housing (1). The second rotating rod (401) passes through the gear (402). The gear (402) meshes with the rack (403). The rack (403) is located outside the sleeve (201) and is connected to the other end of the telescopic rod (202).

5. The diesel engine throttle lever reset device as described in claim 4, characterized in that: The reset mechanism (4) further includes: The locking plate (404), pawl (405), torsion spring (406), and ratchet (407) are all located outside the housing (1). The locking plate (404) and pawl (405) are both mounted on the second rotating rod (401) and rotatably connected to the second rotating rod (401). The torsion spring (406)... The two ends of the ratchet (406) are respectively connected to the pawl (405) and the housing (1). The ratchet (407) passes through the second rotating rod (401) and is rotatably connected to the second rotating rod (401). The ratchet (407) is connected to the second rotating rod (401). The locking piece (404) is engaged with one end of the pawl (405), and the ratchet (407) is engaged with the other end of the pawl (405). The pawl portion (405) includes: The device comprises a first locking part (4051), a third rotating rod (4052), and a second locking part (4053). The third rotating rod (4052) passes through the second rotating rod (401) and is rotatably connected to the second rotating rod (401). The first locking part (4051) and the second locking part (4053) are respectively connected to both ends of the third rotating rod (4052). The first locking part (4051) is engaged with the locking piece (404), and the second locking part (4053) is engaged with the ratchet (407). Both ends of the torsion spring (406) are respectively connected to the first locking part (4051) and the second rotating rod (401).

6. The diesel engine throttle lever reset device as described in claim 1, characterized in that: Also includes: A micro switch (5) is installed on the side wall of the housing (1) near the other end of the telescopic rod (202).

7. The diesel engine throttle lever reset device as described in claim 1, characterized in that: Also includes: Adjusting nut (6), which is threadedly connected to sleeve (201), and the first spring (203) is connected to adjusting nut (6).

8. A reset method for the diesel engine throttle lever reset device as described in claims 1-7, characterized in that: Includes the following steps: S1. In the initial state, the limiting mechanism (3) is inserted into the telescopic rod (202) so that the first spring (203) is in a compressed state, the throttle lever is in a reset state, and the diesel engine throttle is in a closed state. S2. When the diesel engine throttle is started, the limiting mechanism (3) is pressed so that the telescopic rod (202) is released from the restraint of the limiting mechanism (3), and the first spring (203) is adjusted from the shortened state to the extended state so as to drive the telescopic rod (202) to move closer to the throttle rod, so as to drive the throttle rod to move closer to the diesel engine throttle so as to start the diesel engine throttle using the throttle rod. S3. When the diesel engine throttle is closed, the reset mechanism (4) is rotated to move the telescopic rod (202) away from the throttle lever, thereby moving the throttle lever away from the diesel engine throttle and using the throttle lever to close the diesel engine throttle. During the process of the telescopic rod (202) moving away from the throttle lever, one end of the limiting mechanism (3) is re-inserted into the telescopic rod (202), so that the first spring (203) changes from the extended state to the shortened state, the throttle lever is in the reset state, and the diesel engine throttle is in the closed state, thereby realizing the reset of the throttle lever and limiting the throttle lever.

9. The reset method of the diesel engine throttle lever reset device as described in claim 8, characterized in that: In S1, in the initial state, the locking piece (404) is engaged with the first locking part (4051), and the second locking part (4053) is engaged with the ratchet (407); In S2, the adjusting block (303) is pressed towards the side closer to the first rotating rod (301), and the second spring (304) is adjusted from the normal state to the compressed state, so that the first rotating rod (301) rotates, thereby driving the limiting block (302) to rotate away from the telescopic rod (202), so that the telescopic rod (202) is freed from the restraint of the limiting block (302); In S2, the locking piece (404) is oscillated so that the locking piece (404) is disengaged from the first latching part (4051) and the second latching part (4053) is disengaged from the ratchet (407).

10. The reset method of the diesel engine throttle lever reset device as described in claim 9, characterized in that: In S3, after the limiting block (302) is reinserted into the telescopic rod (202), the second spring (304) is adjusted from the compressed state to the normal state, so that the first rotating rod (301) rotates, thereby driving the limiting block (302) to rotate towards the side closer to the telescopic rod (202), so that the limiting block (302) is reinserted into the telescopic rod (202), so that the first spring (203) changes from the extended state to the shortened state, the throttle lever is in the reset state, and the diesel engine throttle is in the closed state, thereby realizing the reset of the throttle lever and limiting the throttle lever; In S3, the locking piece (404) is oscillated again so that the locking piece (404) is reinserted into the first latching part (4051) and the second latching part (4053) is reinserted into the ratchet (407).

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