Spring force-accumulating impact power source

Abstract

The application discloses a spring force-accumulating impact power source and a method thereof, and belongs to the technical field of mechanical power transmission. The power source comprises a driving unit, an intermittent driving module, an energy storage module, an impact mechanism and a power output interface. The intermittent driving module is in transmission connection with the driving unit and is used for converting the movement input by the driving unit into intermittent driving force; the energy storage module is arranged adjacent to the intermittent driving module and comprises a reciprocating driving hammer and an energy storage spring; the intermittent driving module is used for pushing the driving hammer to compress the energy storage spring and instantaneously releasing the driving hammer at a set position. The impact mechanism comprises at least one impact body which can reciprocate along a straight line, the mass of the impact body is smaller than that of the driving hammer, and when the impact mechanism comprises multiple impact bodies, the mass of each impact body decreases in turn along the impact transmission direction; the driving hammer impacts the impact body along a straight line. The power output interface is arranged in correspondence with the last-stage impact body and is used for outputting impact force. The application breaks through the limitation of input power on output strength by the synergic design of intermittent driving, energy storage and release and multi-stage impact multiplication, and converts continuous low-power input into instantaneous high-power impact output. The structure is simple and has strong function expansion.

Description

Technical Field

[0001] This invention relates to the field of mechanical power transmission technology, and more specifically, to a spring-loaded impact power source, particularly a device and its working method that can convert continuous, low-power mechanical energy input into instantaneous, high-power mechanical impact output. Background Technology

[0002] Impact power sources are widely used in construction, equipment maintenance, and emergency rescue. Existing impact tools generally suffer from a high dependence of output impact intensity on input power. High-power solutions such as electric hammers and electric picks, while providing high impact force, are bulky and lack portability; manual tools, while lightweight, have limited impact force and low work efficiency. Some impact mechanisms using spring energy storage lack effective energy amplification mechanisms, making it difficult to convert low-power input into high-intensity impact output, thus limiting their application in portable scenarios. Therefore, there is a need for an impact power source capable of generating high-power impact output with low-power input, while also considering portability and high-frequency operation capabilities. Summary of the Invention

[0003] The purpose of this invention is to provide a spring-loaded impact power source to overcome the technical bottleneck in existing impact tools where "high power is required to generate high impact force" due to the strong correlation between input power and output strength. The invention aims to achieve power reconstruction and amplification from low-power continuous input to high-power instantaneous impact through a unique structural design, thereby significantly reducing the power requirement of the power source while ensuring output strength. Based on this, the invention provides users with a method for generating impact power using the aforementioned spring-loaded impact power source.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A spring-loaded impact power source, comprising: One drive unit; An intermittent drive module, connected to the drive unit, is used to convert the motion input from the drive unit into intermittent drive force; An energy storage module is disposed adjacent to the intermittent drive module, including a reciprocating drive hammer and an energy storage spring abutting against the drive hammer; the intermittent drive module is drivenly connected to the drive hammer and is used to push the drive hammer to compress the energy storage spring, and to release the drive hammer instantaneously when it is compressed to a set position; An impact mechanism, disposed adjacent to the energy storage module, includes at least one impact body capable of reciprocating along a straight line; the mass of the impact body is less than that of the driving hammer in the direction of movement of the driving hammer, and when multiple impact bodies are included, the mass of each impact body decreases sequentially along the impact transmission direction; the driving hammer impacts the impact body in a straight line. A power output interface is provided, corresponding to the last stage impact body in the impact mechanism, for outputting impact force.

[0005] As a preferred embodiment, the impact mechanism includes at least two impact bodies arranged along the same straight line, with the mass of the driving hammer and each impact body decreasing sequentially. By setting up a multi-stage impact body with decreasing mass, the impact velocity can be significantly increased during the step-by-step transmission process, achieving efficient amplification of impact energy.

[0006] As a preferred embodiment, the intermittent drive module is an incomplete gear mechanism, including an incomplete gear connected to the drive unit; the incomplete gear meshes with a rack portion disposed on the drive hammer. The incomplete gear mechanism has a simple structure, reliable operation, and can realize high-frequency energy storage and release cycles.

[0007] As a preferred embodiment, the intermittent drive module is a cam mechanism, including a cam connected to the drive unit, which cooperates with a follower mounted on the drive hammer. The cam mechanism also enables the drive hammer to compress a spring and release at a set position.

[0008] As a preferred embodiment, the impact mechanism includes two stages of impact bodies: the first stage is an impact hammer, and the second stage is an impact finger; the impact hammer is reciprocally positioned in front of the drive hammer to receive the impact of the drive hammer; the impact finger is reciprocally positioned in front of the impact hammer and is connected to or correspondingly positioned to the power output interface to receive the impact of the impact hammer and transmit the impact to the power output interface; the impact hammer and the impact finger are respectively reset by return springs.

[0009] As a preferred embodiment, the impact finger is positioned between the impact hammer and the power output interface to receive the impact of the impact hammer and transmit the impact to the power output interface, while simultaneously isolating the impact hammer from direct contact with external actuators. This design effectively prevents damage to the internal core mechanism from external load backlash, improving the service life and reliability of the device.

[0010] As a preferred embodiment, the drive hammer, after being released and before impacting the impactor, has a free travel period without contacting the impactor. This design ensures that the drive hammer receives sufficient acceleration before impact, maximizing the utilization of the energy stored in the energy storage spring.

[0011] As a preferred embodiment, the stiffness of the energy storage spring is greater than that of any of the impact body's return springs. This configuration allows the energy storage spring to store more elastic potential energy within a limited compression stroke, while reducing the return spring resistance that the drive hammer needs to overcome during the process of pushing the impact body after release. This allows more of the potential energy stored in the energy storage spring to be converted into the kinetic energy of the impact body, thereby improving energy transfer efficiency.

[0012] As a preferred embodiment, the power output interface includes a quick-change interface and a push rod. The push rod constitutes an output component and is reciprocally mounted within the quick-change interface. One end of the push rod is used to abut against the impact mechanism to receive impact force, and the other end is used to abut against the working tool mounted on the quick-change interface. The quick-change interface is used for detachable connection with the working tool. The working tool includes, but is not limited to, chisels, punches, push rods, unclogging heads, hydraulic modules, etc. This design allows the present invention to quickly change different working tools, achieving multi-purpose functionality. As a variation, the power output interface can also be directly fixedly connected to the working tool to adapt to working conditions such as those requiring higher structural strength or special tools that do not need to be replaced.

[0013] The present invention also provides a method for generating impact power using the spring-loaded impact power source described in any of the above embodiments, comprising the following steps: Energy storage steps: The driving unit obtains driving force and transmits it to the intermittent driving module and the energy storage module; the intermittent driving module pushes the driving hammer to compress the energy storage spring, and releases the driving hammer instantaneously when the energy storage spring is compressed to a set position, so that it accelerates under the action of spring force to form an initial impact pulse; Impact step: The accelerating drive hammer strikes the first adjacent impactor in the impact mechanism, and the impact kinetic energy is transferred from the impactor to the next impactor or directly to the power output interface; when multiple impactors are included, each impactor transmits the impact force in sequence until it is transmitted to the power output interface. Output step: The impactor strikes the output component of the power output interface, transmitting the impact force to the external actuator.

[0014] Beneficial effects Compared with existing technologies, this invention achieves power reconstruction and amplification in the time dimension through the synergistic design of intermittent energy storage, multi-stage impact multiplication, and rigid impact, and has the following beneficial effects: First, it overcomes the limitation of input power on output intensity. This invention can significantly reduce the demand for drive power while ensuring the output impact intensity. Through an intermittent energy storage mechanism, continuous low-power input is converted into an instantaneously released high-energy pulse, and then the velocity is amplified step by step through a multi-stage impactor mass reduction configuration, enabling low-power input to produce an impact output far exceeding that of conventional methods. Secondly, it significantly reduces dependence on power sources. Based on the aforementioned power amplification characteristics, this invention requires extremely low output power from the drive unit, allowing for flexible adaptation to various power sources such as manual motors, small motors, electric drills, pneumatic motors, and hydraulic motors. Furthermore, the core mechanism is a purely mechanical structure with no electronic components, enabling reliable operation in humid or underwater environments. Additionally, a hydraulic transmission module can be integrated to transmit impact power to work points far from the power source. Third, it has a simple structure and strong functional expandability. The intermittent energy storage core and impact mechanism adopt a modular design, and the same core can be adapted to impact modules of different levels; the power output interface adopts a quick-change structure, which can quickly replace the actuating parts such as chisels, punches, and unclogging heads, realizing one machine for multiple uses. Attached Figure Description

[0015] Figure 1 Schematic diagram of module connection relationship of the present invention In the figure: 199, drive unit; 100, power input module; 200, transmission module; 300, intermittent energy storage module (i.e., the intermittent drive module and energy storage module described in claim 1); 400, impact mechanism; 500, power output interface; 600, hydraulic transmission module; 700, housing. Figure 2 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention (manual power source input). In the diagram: 101, manual rack; 102, handle; 201, transmission gear; 202, transmission belt; 203, one-way clutch; 301, incomplete gear; 302, drive hammer; 303, energy storage spring; 304, drive hammer rack section; 401, impact hammer; 402, impact finger; 501, push rod; 502, quick-change interface; 700, housing. Figure 3 This is a partial cross-sectional view of the intermittent drive module, energy storage module, and impact mechanism in Embodiment 1 of the present invention; In the diagram: 301, incomplete gear; 302, driving hammer; 303, energy storage spring; 304, rack section; 401, impact hammer; 402, impact finger; 403, impact hammer return spring; 404, impact finger return spring; 501, push rod; 405, push rod return spring; 706, guide cavity. Figure 4 This is a schematic diagram of the overall structure of Embodiment 2 of the present invention (electric power source input); In the diagram: 103, motor; 201, transmission gear; 106, reduction gear. Figure 5 This is a schematic diagram of the overall structure of Embodiment 3 of the present invention (electric drill power source input); In the diagram: 104, drill connecting shaft; 105, drill; 201, transmission gear; 106, reduction gear. Figure 6 This is a schematic diagram of the overall structure of Embodiment 4 of the present invention (hydraulic remote transmission system). In the diagram: 501, push rod; 502, quick-connect coupling; 601, hydraulic cylinder; 602, hydraulic piston; 603, hydraulic hose; 604, actuator cylinder; 605, actuator push rod; 606, hydraulic cylinder return spring (installed inside 601); 607, actuator cylinder return spring (installed inside 604); 609, quick coupling; 700, housing; 706, guide cavity. Figure 7 This is a schematic diagram of the overall structure of Embodiment 5 of the present invention (simplified single-stage impact type); In the diagram: 401, impact hammer; 501, push rod; 700, housing.

[0016] Example 1: Basic type of manual drive like Figure 1 , Figure 2 , Figure 3 As shown, the transmission path of the present invention is as follows: the drive unit transmits external driving force to the intermittent drive module. In this embodiment, the drive unit (199) is composed of a power input module (100) and a transmission module (200), wherein the power input module includes a manual rack (101) and its handle (102), and the transmission module includes a transmission gear (201) and a transmission belt (202). The manual rack drives the transmission gear to rotate, and the transmission gear drives the incomplete gear (301) of the intermittent drive module to rotate through the transmission belt. The incomplete gear then meshes with the rack part (304) on the drive hammer (302). It should be noted that the transmission connection between the incomplete gear and the drive unit described in claim 3 needs to be flexibly set according to the power source output form: for example, when the power source output is reciprocating linear motion, it is preferable to set a motion conversion mechanism such as a gear to convert the reciprocating motion into rotational motion, and a speed reduction mechanism can be combined to match the speed and torque; when the power source output is rotational motion, it can be directly connected through a transmission element, and the reduction ratio can also be set as needed. This embodiment uses a manual rack and pinion with a transmission gear and a transmission belt as an example, but the present invention is not limited thereto.

[0017] This embodiment provides a manually driven spring-loaded impact power source, the overall structure of which is as follows: Figure 1 As shown, a partial cross-section is as follows Figure 2 , 3 As shown.

[0018] 1. Overall Structure The device in this embodiment includes a drive unit (199), an intermittent energy storage module (300) (i.e., the intermittent drive module and energy storage module described in claim 1), an impact mechanism (400), and a power output interface (500), with the main working components integrated on the housing (700). The drive unit (199) consists of a power input module (100) and a transmission module (200).

[0019] The power input module includes a manual rack (101) and a handle (102) connected to the manual rack. The manual rack is slidably mounted in a guide rail within the housing, and the handle extends to the outside of the housing for easy gripping and pushing / pulling by the operator. The manual rack has teeth that mesh with the transmission gears of the transmission module.

[0020] The transmission module includes a transmission gear (201) and a transmission belt (202). The transmission gear is rotatably fixed to the housing and is connected to an incomplete gear (301), which is also rotatably fixed to the housing, via the transmission belt. Preferably, the transmission gear (201) integrates a one-way clutch (203) for driving the incomplete gear (301) to rotate only during the manual downward push stroke, thereby compressing the energy storage spring (303); during the manual upward pull stroke, the power transmission between the transmission gear and the incomplete gear is cut off, allowing it to idle.

[0021] The intermittent energy storage module (300) includes an intermittent drive module and an energy storage module. The intermittent drive module is composed of an incomplete gear (301), and the energy storage module is composed of a drive hammer (302) and an energy storage spring (303). The incomplete gear (301) intermittently meshes with a rack portion (304) provided on the drive hammer. The drive hammer is reciprocally slidably mounted in a guide cavity (706) of the housing, which restricts the drive hammer to only perform linear reciprocating motion along the axial direction. One end of the energy storage spring abuts against the drive hammer, and the other end abuts against a spring seat of the housing.

[0022] Impact mechanism: includes an impact hammer (401) and an impact finger (402), both of which are reciprocally slidably mounted in the guide cavity of the housing along the same straight line, located in front of the drive hammer. The guide cavity restricts the impact body to only make linear reciprocating motion along the axial direction. The impact hammer and the impact finger are reset by return springs (403) and (404) respectively, with one end of the spring abutting against their respective impact bodies and the other end abutting against the spring seat of the housing.

[0023] In this embodiment, the mass of the driving hammer is 0.5 kg, the mass of the impact hammer is 0.3 kg, and the mass of the impact finger is 0.1 kg, satisfying the requirement of claim 1 that "the mass of the impact body in the direction of movement of the driving hammer is less than that of the driving hammer," and the masses of the three decrease sequentially, realizing the technical feature of claim 1 that "when multiple impact bodies are included, the mass of each impact body decreases sequentially along the impact transmission direction." It should be noted that the above mass values ​​are only examples, and those skilled in the art can adjust the mass ratio of each impact body according to the different required output impact forces, all of which fall within the scope of the present invention.

[0024] The power output interface includes a push rod (501) and a quick-change interface (502). The quick-change interface is fixedly installed, with its rear end corresponding to the front end of the impact finger (402). The push rod is reciprocally slidably installed within the quick-change interface, with its rear end receiving the impact of the impact finger and its front end impacting the working tool installed at the front end of the quick-change interface. The quick-change interface is used for detachable connection with the working tool, which includes, but is not limited to, chisels, punches, push rods, unclogging heads, hydraulic modules, etc. This design allows the invention to quickly change different working tools, achieving multi-purpose functionality. As a variation, the power output interface can also be directly and fixedly connected to the working tool to adapt to working conditions such as those requiring higher structural strength or special tools that do not need to be replaced.

[0025] 2. Work Process The working process of this embodiment includes four stages: energy storage, impact, output, and reset.

[0026] Energy storage stage: The operator holds the handle (102) and pushes the manual rack (101) downwards. The manual rack drives the transmission gear (201) to rotate, which in turn drives the incomplete gear (301) to rotate synchronously via the transmission belt (202). The teeth of the incomplete gear mesh with the rack portion (304) on the drive hammer (302), pushing the drive hammer backward and compressing the energy storage spring (303). When the incomplete gear rotates to the toothless region, it disengages from the rack portion, and the drive hammer is released instantaneously.

[0027] Impact phase: The released drive hammer accelerates forward under the force of the energy storage spring. In this embodiment, after being released and before impacting the impact hammer (401), the drive hammer has a free motion stroke during which it does not come into contact with the impact hammer. Preferably, this free motion stroke is set to be slightly less than the maximum compression of the energy storage spring to ensure that the drive hammer impacts the impact hammer before the spring force has completely dissipated, thereby maximizing energy transfer efficiency. However, those skilled in the art will understand that, depending on different working conditions, this free motion stroke can also be equal to or slightly greater than the maximum compression of the spring, as long as sufficient acceleration of the drive hammer can be achieved, it falls within the scope of the present invention.

[0028] After its free-movement stroke, the driving hammer makes a rigid impact with the impact hammer (401) in a straight line at a high speed. "Rigid impact" refers to a direct contact between the driving hammer and the impact body, and between the impact bodies themselves, without any independently installed elastic buffer elements (such as springs or rubber pads) in between. After the rigid impact, the impact hammer moves forward and also impacts the impact finger (402) in a straight line. It is estimated that, under the mass configuration of this embodiment, the output speed of the impact finger is higher than the initial speed of the driving hammer, thus giving the impact body a significant impact speed amplification effect.

[0029] As an alternative implementation, if it is necessary to reduce noise or extend the service life of components under specific operating conditions, flexible buffer pads can be installed on the impact end faces of the drive hammer, impactor, or push rod. This solution reduces some impact energy in exchange for lower operating noise and a longer component service life, and is suitable for scenarios where impact strength requirements are not high but the operating environment has special requirements.

[0030] Output stage: The final stage impactor (impact finger) is set in correspondence with the push rod. The push rod is the power output component. The impact finger impacts the push rod (501) rigidly to make it impact forward, and then transmits the impact force through the push rod to the external actuator, such as chisel, punch, hydraulic module, etc., to perform operations on the external workpiece.

[0031] Reset Phase: The operator pushes the handle downwards, causing the manual rack to move downwards. This drives the incomplete gear to rotate via the transmission gear. The next set of teeth on the incomplete gear re-engages with the rack of the drive hammer, driving the drive hammer to move backwards and compressing the energy storage spring (303). The impact hammer (401) and impact finger (402) return to their initial positions under the action of their respective reset springs (403) and (404). The equipment then begins to store energy, preparing for the next impact.

[0032] It should be noted that, depending on the layout requirements of the manual rack and pinion and the transmission gear, an idler gear can be selectively added to adjust the rotation direction, ensuring that the drive hammer correctly compresses the energy storage spring. Furthermore, to ensure the accurate reset sequence and initial position of the drive hammer, impactor, and push rod, a limit device can be installed to ensure that, together with the reset spring, it constrains each component to reset quickly, thereby ensuring that the movement and stopping position of each component are consistent in each impact cycle.

[0033] 3. Structural Features and Effects Description Explanation of the implementation of feature weight 1: This embodiment fully realizes the technical features defined in claim 1: the driving hammer (302) performs linear reciprocating motion under the constraint of the guide cavity (706); the impact hammer (401) and impact finger (402) in the impact mechanism can both reciprocate along the same straight line; the mass of the impact hammer and the impact finger are both less than that of the driving hammer, and their masses decrease sequentially; the driving hammer rigidly impacts the impact hammer along the straight line, and the impact hammer then impacts the impact finger along the straight line; the power output interface is correspondingly set with the last stage impact body, i.e., the impact finger (402), and the push rod (501) directly outputs the impact force. The structure and working process of this embodiment provide complete technical support for claim 1.

[0034] Regarding the shock absorption function: In this embodiment, the impact finger is positioned between the impact hammer and the push rod (501). When an external load recoils, such as when the push rod bounces back after hitting a hard object, the recoil force is first applied to the impact finger, which bears and disperses the impact force, preventing the impact hammer and drive hammer from being directly subjected to the reverse impact and thus avoiding damage. Furthermore, as a consumable part, the impact finger has a simple structure and is easy to replace, significantly reducing maintenance costs.

[0035] Regarding the configuration of spring stiffness: In this embodiment, the stiffness of the energy storage spring (303) is configured to be significantly greater than that of the return spring. A larger energy storage spring stiffness allows for the storage of more elastic potential energy within a limited compression stroke; while a smaller return spring stiffness only requires overcoming frictional resistance to reset the impactor, avoiding excessive energy consumption. This stiffness configuration helps improve the overall energy utilization efficiency of the device.

[0036] Regarding rigid impact: In this invention, the energy transfer between the driving hammer and the impact body, and between the impact bodies, is preferably achieved through rigid impact. Compared with buffered impact using hydraulic or elastic pads, rigid impact has the advantages of fast energy transfer speed, high transfer efficiency, and sharper impact pulse. It can maximize the use of the energy stored in the energy storage spring to generate instantaneous high-intensity impact force, making it particularly suitable for crushing, chiseling, and other operations that require instantaneous high force.

[0037] As a variant, flexible buffer pads can be installed on the impact end face of the drive hammer, impact body, or push rod as needed to reduce operating noise and extend the service life of components. It is suitable for scenarios where the impact strength requirement is relatively low but the working environment has special requirements.

[0038] Regarding the power output interface: The quick-change interface is used for quickly replacing different actuators. Its combination with the push rod enables the device to be used for multiple purposes, significantly expanding its application scenarios. This is the quick-change interface described in claim 9, and its versatility is one of the beneficial features of this invention.

[0039] Regarding the adjustment mechanism for output impact force: This invention has the ability to adjust the magnitude of the output impact force, and the specific implementation method is as follows: Controlling the amount of stored energy: The output impact force is directly related to the compression of the energy storage spring (303). The compression of the spring can be changed by adjusting the stroke of the drive hammer driven by the intermittent drive module. For example, in this embodiment, a special wrench can be added to adjust the initial phase angle at which the incomplete gear (301) and the rack part (304) of the drive hammer begin to mesh, thereby changing the moment when the incomplete gear and the rack part of the drive hammer begin to mesh, and thus changing the effective drive arc length of the incomplete gear, controlling the effective compression stroke of the drive hammer. The greater the stroke of the drive hammer, the deeper the spring is compressed, the more energy is stored, and the greater the final output impact force, and vice versa. This mechanism of adjusting the output force by controlling the stroke of the drive hammer allows the present invention to flexibly meet the operational needs of different intensities, from precision hammering to heavy crushing.

[0040] Safety and Energy Release Mechanism As a further improvement, the incomplete gear is equipped with a compound ratchet mechanism that can switch working states, and this mechanism has three modes: Working mode: One-way locking, only allowing the incomplete gear to rotate in the direction of compressing the energy storage spring, and automatically locking in the opposite direction to prevent the incomplete gear from reversing, so that the impact reaction force is intercepted at the incomplete gear and cannot be transmitted back to the upstream of the transmission system; Pause mode: bidirectional locking (such as locking with the housing) can lock the incomplete gear at any position during energy storage, thereby locking the drive unit and drive hammer, which facilitates equipment pause or standby; Dissipation mode: bidirectional freedom, the incomplete gear can rotate freely on the shaft, so that the energy storage spring will automatically return to its original position and release its elastic force after the machine stops, and the return torque is stopped at the incomplete gear and does not enter the drive shaft, thus not being transmitted to the drive belt and handle.

[0041] The three modes can be manually switched using a lever or knob located on the outside of the housing.

[0042] Example 2: Electric drive type This implementation example Figure 4 As shown, the drive unit (199) is composed of a power input module (100) and a transmission module (200). The power input module includes a motor (103) and a speed reduction transmission device (106), and the transmission module includes a transmission gear (201) and a transmission belt (202).

[0043] This embodiment is basically the same in structure as Embodiment 1, the difference being the specific implementation method of the power input module in the drive unit: In this embodiment, the power input module includes a motor and a reduction gear. The motor can be a DC motor or an AC motor, and its output shaft is connected to the input end of the reduction gear. The output end of the reduction gear is connected to the transmission gear of the transmission module to reduce the high speed of the motor to a suitable input speed.

[0044] This embodiment is completely identical to Embodiment 1 in terms of the guidance of the driving hammer, the linear reciprocating motion of the impactor, the mass reduction configuration, the driving hammer impacting the impactor along a straight line, and the corresponding setting of the power output interface and the last stage impactor, and fully satisfies the technical features defined in Claim 1.

[0045] During operation, the motor is started, and the rotational power is transmitted to the transmission belt through the reduction gear, driving the incomplete gear (301) to rotate continuously. The subsequent energy storage, impact, output, and reset processes are the same as in Example 1, and will not be described again here.

[0046] This embodiment achieves continuous automated operation through motor drive, and the impact frequency can be steplessly adjusted by adjusting the motor speed, making it suitable for long-term, high-intensity operation scenarios.

[0047] Example 3: Drill-compatible type This implementation example Figure 5 As shown, the drive unit (199) is composed of a power input module (100) and a transmission module (200). The power input module includes a hand drill (105), a drill connecting shaft (104), and a drill power input wheel, i.e., a reduction gear (106); the transmission module includes a transmission gear (201) and a transmission belt (202).

[0048] One end of the electric drill connecting shaft is a standardized hexagonal or round shank, used to insert into and clamp the chuck of the electric drill (105), and the other end is connected to the electric drill power input wheel (106); the electric drill power input wheel (106) is connected to the input shaft of the transmission module.

[0049] This embodiment has a basically the same structure as Embodiment 1, the difference being that the specific implementation of the power input module in the drive unit is different.

[0050] This embodiment is completely identical to Embodiment 1 in terms of the guidance of the driving hammer, the linear reciprocating motion of the impactor, the mass reduction configuration, the driving hammer impacting the impactor along a straight line, and the corresponding setting of the power output interface and the last stage impactor, and fully satisfies the technical features defined in Claim 1.

[0051] During operation, the electric drill is clamped onto the drill connecting shaft and started. The rotational power of the electric drill is transmitted to the drill power input wheel (106) via the drill connecting shaft (104), and after deceleration, it is transmitted to the transmission gear (201), and then drives the incomplete gear (301) to rotate continuously via the transmission belt (202). The subsequent energy storage, impact, output and reset processes are the same as in Example 1, and will not be described again here.

[0052] This embodiment can utilize the user's existing electric drill as a power source, eliminating the need to purchase a dedicated motor, and features low cost and high versatility. In addition, the electric drill power input wheel (106) itself is a speed reduction transmission device, which can be adapted to electric drills of different speed specifications, further expanding the compatibility range of the power source.

[0053] Example 4: Hydraulic remote transmission type This embodiment is an extension of the spring-loaded impact power source described in embodiments 1, 2, 3, and 5, and is adapted to embodiments 1, 2, 3, and 5.

[0054] As described in Example 1, this example connects to the quick-change interface of Example 1 via a quick connector to remotely transmit the impact force generated by Example 1 hydraulically, thereby expanding the operating range of Example 1 and making it suitable for special scenarios such as confined spaces, hazardous environments, or underwater operations.

[0055] like Figure 6 As shown, the hydraulic system described in this embodiment includes: a hydraulic transmission module including a hydraulic cylinder (601), a hydraulic piston (602), a hydraulic hose (603), an actuator cylinder (604), an actuator push rod (605), and a quick connector (609).

[0056] The hydraulic cylinder is fixedly mounted on the machine housing, with its open end corresponding to the push rod. A hydraulic piston is reciprocally slidably mounted inside the hydraulic cylinder, dividing the cylinder's interior into a front chamber and a rear chamber. The rear chamber of the hydraulic cylinder, i.e., the side containing the hydraulic hose, may be equipped with a return spring (606) or have the piston reset via a hydraulic circuit.

[0057] The hydraulic cylinder's cavity is filled with hydraulic oil and connected to the actuator cylinder via a hydraulic hose. The hydraulic hose is a high-pressure hose, and its length can be selected according to the required working distance. In this embodiment, a standard hydraulic hose is used to achieve short-to-medium distance long-distance operation. For scenarios requiring longer distances, longer hoses can also be selected.

[0058] The actuator cylinder is equipped with a reciprocating actuator rod. One end of the actuator rod is in contact with hydraulic oil, and the other end extends to the outside of the actuator cylinder to output impact force. The end of the actuator rod can be equipped with a quick-change interface similar to that in Embodiment 1 for detachable connection with different external actuators such as chisels, punches, actuator rods, and drain heads.

[0059] Work process The working process of this embodiment includes two main stages: hydraulic transmission and remote output. Hydraulic transmission stage: When the push rod (501) of Embodiment 1 moves forward and outputs an impact force, the push rod strikes the hydraulic piston (602) inside the hydraulic cylinder (601). After being compressed, the hydraulic piston moves forward, compressing the hydraulic oil in the front chamber of the hydraulic cylinder. Since the hydraulic oil can be considered approximately incompressible, the pressure wave is transmitted instantaneously through the hydraulic oil and propagates through the hydraulic hose (603) to the remote actuator cylinder (604).

[0060] Remote output stage: The hydraulic oil in the cylinder pushes the actuator rod (605) forward under the action of pressure waves. The actuator rod impacts the external workpiece, and the output impact force is equivalent to the input force. Due to the high pressure transmission efficiency of the hydraulic system, the impact force output by the actuator rod is basically equivalent to the impact force input by the actuator rod, realizing the long-distance and high-fidelity transmission of impact power.

[0061] Reset phase: In Example 1, the push rod moves backward under the action of the push rod return spring (405), disengaging from the hydraulic piston (602). The hydraulic piston can move backward under the action of the return spring (606) in the hydraulic cylinder or the return oil channel, returning to its initial position. At the same time, the push rod moves backward under the action of the return spring (607) in the actuator cylinder or the return oil channel, returning to its initial position, waiting for the next impact.

[0062] It should be noted that the impact force in this embodiment is derived from Embodiment 1. The features of the driving hammer impacting the impactor in a straight line, the mass of the impactor decreasing and amplifying, and the power output interface corresponding to the last stage impactor in Embodiment 1 have been fully implemented in Embodiment 1. This embodiment only extends its output method to a hydraulic remote extension.

[0063] Example 5: Simplified Single-Stage Impact In this embodiment, the drive unit (199) is composed of a power input module (100) and a transmission module (200). The power input module includes a manual rack (101) and a handle (102), and the transmission module includes a transmission gear (201) and a transmission belt (202).

[0064] This embodiment provides a simplified scheme for a single-stage impact, the overall structure of which is as follows: Figure 7 As shown. The main difference between this embodiment and Embodiment 1 is that the impact mechanism contains only one impactor and does not have a secondary impact finger. This embodiment has a simpler structure and lower cost, and is suitable for scenarios where the impact force requirement is not high.

[0065] 1. Overall Structure like Figure 1 As shown, the device in this embodiment includes a drive unit (199), an intermittent energy storage module (300) (i.e., the intermittent drive module and energy storage module described in claim 1), an impact mechanism (400), and a power output interface (500), all of which are integrated on the housing (700).

[0066] like Figure 7 As shown, the drive unit consists of a power input module (100) and a transmission module (200).

[0067] The power input module includes a manual rack (101) and a handle (102) connected to the manual rack. The manual rack is slidably mounted in a guide rail within the housing, and the handle extends to the outside of the housing. The manual rack has teeth that mesh with the drive gears of the transmission module.

[0068] The transmission module includes a transmission gear (201) and a transmission belt (202). The transmission gear is rotatably fixed to the housing and is connected to an incomplete gear (301) that is also rotatably fixed to the housing via the transmission belt. Preferably, a one-way clutch is used to prevent the intermittent drive module and energy storage module from moving in the opposite direction during the pulling stroke.

[0069] The intermittent energy storage module (300) includes an intermittent drive module and an energy storage module. The intermittent drive module is composed of an incomplete gear (301), and the energy storage module is composed of a drive hammer (302) and an energy storage spring (303). The incomplete gear (301) intermittently meshes with a rack portion (304) provided on the drive hammer. The drive hammer is reciprocally slidably mounted in a guide cavity (706) of the housing, which restricts the drive hammer to only perform linear reciprocating motion along the axial direction. One end of the energy storage spring abuts against the drive hammer, and the other end abuts against a spring seat of the housing.

[0070] The impact mechanism includes an impact hammer (401) which is slidably mounted in a guide cavity of the housing in a straight line, located in front of the drive hammer. The impact hammer is reset by a return spring (403), one end of which abuts against the impact hammer and the other end against a spring seat of the housing.

[0071] In this embodiment, the mass of the driving hammer is greater than the mass of the impact hammer, satisfying the requirement of claim 1 that "the mass of the impact body in the direction of movement of the driving hammer is less than that of the driving hammer". It should be noted that the above mass relationship is merely an example; those skilled in the art can adjust the mass ratio of the driving hammer and the impact hammer according to the different required output impact forces, all of which fall within the scope of this invention.

[0072] The power output component is a push rod (501), which is reciprocally slidably mounted in a quick-change interface (502) in front of the impact hammer (401) to receive the impact of the impact hammer. Its front end is used to impact the working tool mounted at the front end of the quick-change interface. The quick-change interface is used for detachable connection with the working tool, which includes, but is not limited to, chisels, punches, push rods, unclogging heads, hydraulic modules, etc. This design allows the present invention to quickly change different working tools, realizing multi-purpose functionality.

[0073] 2. Work Process The working process of this embodiment includes four stages: energy storage, impact, output, and reset.

[0074] Energy storage stage: as in Example 1.

[0075] Impact phase: The released drive hammer accelerates forward under the force of the energy storage spring. After being released and before impacting the impact hammer, the drive hammer has a free motion stroke without contacting the impact hammer, ensuring sufficient acceleration before impact. After the free motion stroke, the drive hammer impacts the impact hammer in a straight line. Because the mass of the impact hammer is less than that of the drive hammer, the impact hammer gains a higher velocity after impact than the drive hammer before impact, achieving single-stage impact velocity amplification.

[0076] Output phase: The impact hammer strikes the push rod (501) to make it impact forward. The push rod, as a power output component, is set in correspondence with the impact hammer. After being impacted, it directly transmits the impact force to external actuators, such as chisels, punches, hydraulic modules, etc., to perform operations on external workpieces.

[0077] Reset phase: After the impact is completed, the impact hammer (401) moves backward under the action of the return spring (403) and returns to the initial position; the operator pulls the handle (102) upward to move the manual rack upward. At this time, the one-way clutch (203) in the transmission gear rotates freely, the incomplete gear remains stationary, and the drive hammer remains in the initial position under the action of the energy storage spring.

[0078] It should be noted that the direction of force transmission of the transmission gear and the incomplete gear can be adjusted by selectively adding an idler gear to adjust the direction of rotation. In addition, a limit device can also be set to ensure that the reset sequence and initial position of the drive hammer and the impact hammer are accurate, thereby ensuring that the movement and stopping position of each component are consistent in each impact cycle.

[0079] 3. Structural Features Description Compared with the two-stage impact scheme of Example 1, this embodiment omits the impact finger and the corresponding return spring, resulting in a simpler structure and a reduced number of parts.

[0080] In this embodiment, the stiffness of the energy storage spring (303) is greater than that of the return spring, so as to ensure that more elastic potential energy is stored within a limited compression stroke, while avoiding excessive energy consumption during the impact of the return spring.

[0081] This embodiment is completely identical to Embodiment 1 in terms of the power input module, transmission module, intermittent drive module, and energy storage module. The same power core is adapted to the first-level impact mechanism, which reduces research and development and production costs.

[0082] Example 6: Modified Example of Cam Mechanism As another implementation of the intermittent drive module, the present invention can also employ a cam mechanism. This cam mechanism includes a cam connected to the drive unit and a follower cooperating with the cam, the follower being connected to the drive hammer. The drive unit drives the cam to rotate continuously, and the cam's profile pushes the follower and drive hammer backward, compressing the energy storage spring. When the cam rotates to the release section of its profile, the follower disengages from the cam, and the drive hammer is instantaneously released, achieving an intermittent energy storage and release function equivalent to an incomplete gear mechanism. Those skilled in the art can design the cam's profile curve and the follower's form according to the required impact frequency and stroke.

[0083] The following are some exemplary variations: 1. Variations regarding power source adaptation:

[0084] The drive unit of this invention is adaptable to various power sources capable of outputting driving force, including but not limited to electric motors, pneumatic motors, hydraulic motors, internal combustion engines, and human-powered or vehicle-driven mechanisms. Any device capable of providing driving force to the drive unit can serve as the power source of this invention.

[0085] 2. Regarding variations in the implementation of the drive unit: The driving unit of this invention is used to acquire driving force and transmit it to the intermittent driving module. Its specific implementation can be flexibly varied, such as: Discrete type: It is composed of discrete power input modules and transmission modules (as shown in Examples 1-5). Combined type: The power input, transmission and intermittent drive functions are combined into one. For example, a manual rack is set as an incomplete rack and directly meshes with the rack part on the drive hammer to drive, and intermittent drive is directly achieved by manual push and pull action; or a flexible component such as an incomplete chain or a belt with intermittent release function is used to directly pull the drive hammer. Direct connection: The output shaft of the power source is directly coaxially connected to the intermittent drive module, so that the power source directly outputs intermittent driving force. For example, the power source is coaxially connected to an incomplete gear, cam mechanism, etc. The variations that include, but are not limited to, those that can achieve the core function of "directly acquiring or indirectly converting intermittent driving force to drive the driving hammer to intermittently compress the energy storage spring and release it instantaneously, thereby obtaining impact force, impacting the impact body with the impact force, and gradually amplifying the impact force by means of the progressively decreasing mass of the impact body" are all equivalent embodiments of the present invention.

[0086] 3. Variations regarding the number of impactors: The above embodiments employ single-stage impact (Example 5) and two-stage impact (Examples 1-4), respectively. Depending on the needs, three or more stages of impact bodies can also be used, with the impact velocity gradually amplified through a configuration of progressively decreasing mass.

[0087] 4. Regarding variations of the intermittent drive module: The intermittent drive module used in the above embodiments is an incomplete gear mechanism. Any mechanism that can achieve the function of "pushing the drive hammer to compress the energy storage spring to a set position and then releasing it instantaneously" can be used as an optional embodiment of the present invention, such as cam mechanism, ratchet mechanism, crank-rocker mechanism, friction wheel mechanism, electromagnetic release device, etc.

[0088] 5. Regarding variations of the reset mechanism: In the above embodiments, a helical spring is used as the reset element. The reset element can also be a leaf spring, a spring sheet, a magnetic reset mechanism, a pneumatic reset mechanism, etc., as long as it can restore the impact body to its initial position after the impact is completed, it can be used as the reset mechanism described in this invention.

[0089] 6. Regarding variations of the hydraulic transmission module: The hydraulic transmission module in Embodiment 4 described above can be adopted in various variations, such as using a double-acting hydraulic cylinder, adding an accumulator, multiple outputs, or using other incompressible liquids such as antifreeze or flame-retardant liquid as the transmission medium. These variations are all within the scope of the present invention.

[0090] 7. Regarding the fit between the impact finger and the actuator: There are various ways for the impact finger and the actuator to cooperate. For example, the impact finger can transmit the impact force to the power output interface by striking a push rod, or it can directly strike the external actuator without omitting the push rod. When the impact finger and the actuator are separate structures, they transmit the impact through contact, and a guide structure can be provided to ensure coaxiality. The above cooperation methods are only examples; any method that uses the same principle to achieve impact transmission falls within the protection scope of this invention.

[0091] Industrial applicability The spring-loaded impact power source provided by this invention can be widely used in fields requiring impact operations, such as pipeline dredging, equipment maintenance, building construction, automobile repair, mining operations, emergency rescue, underwater operations, precision assembly, cultural relic restoration, and home DIY, and has industrial applicability.

[0092] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, equivalent substitutions, modifications, or variations can be made to the above embodiments without departing from the spirit and principle of the present invention, and all such modifications should be considered within the scope of protection of the present invention.

Claims

1. A spring-loaded impact power source, characterized in that, include: One drive unit; An intermittent drive module, connected to the drive unit, is used to convert the motion input from the drive unit into intermittent drive force; An energy storage module is disposed adjacent to the intermittent drive module, including a reciprocating drive hammer and an energy storage spring abutting against the drive hammer; the intermittent drive module is drivenly connected to the drive hammer and is used to push the drive hammer to compress the energy storage spring, and to release the drive hammer instantaneously when it is compressed to a set position; An impact mechanism, disposed adjacent to the energy storage module, includes at least one impact body capable of reciprocating along a straight line; the mass of the impact body is less than that of the driving hammer in the direction of movement of the driving hammer, and when multiple impact bodies are included, the mass of each impact body decreases sequentially along the impact transmission direction; the driving hammer impacts the impact body in a straight line. A power output interface is provided, corresponding to the last stage impact body in the impact mechanism, for outputting impact force.

2. The spring-loaded impact power source according to claim 1, characterized in that, The impact mechanism includes at least two impactors, which are arranged along the same straight line and have decreasing mass sequentially.

3. The spring-loaded impact power source according to claim 1, characterized in that, The intermittent drive module is an incomplete gear mechanism, including an incomplete gear connected to the drive unit; the incomplete gear meshes with a rack portion disposed on the drive hammer.

4. The spring-loaded impact power source according to claim 1, characterized in that, The intermittent drive module is a cam mechanism, including a cam connected to the drive unit, and the cam cooperates with a follower disposed on the drive hammer.

5. The spring-loaded impact power source according to claim 2, characterized in that, The impact mechanism includes two stages of impact bodies: the first stage is an impact hammer, and the second stage is an impact finger; the impact hammer is reciprocally positioned in front of the drive hammer to receive the impact of the drive hammer; the impact finger is reciprocally positioned in front of the impact hammer, abutting against or corresponding to the power output interface, to receive the impact of the impact hammer and transmit the impact to the power output interface; the impact hammer and the impact finger are respectively reset by return springs.

6. The spring-loaded impact power source according to claim 5, characterized in that, The impact finger is disposed between the impact hammer and the power output interface, and is used to receive the impact of the impact hammer and transmit the impact to the power output interface, while isolating the impact hammer from direct contact with external actuators.

7. The spring-loaded impact power source according to claim 1, characterized in that, After the drive hammer is released and before it strikes the impact body, it has a free movement stroke that does not contact the impact body.

8. The spring-loaded impact power source according to claim 5, characterized in that, The stiffness of the energy storage spring is greater than the stiffness of any of the impact body return springs.

9. The spring-loaded impact power source according to claim 1, characterized in that, The power output interface includes a quick-change interface and a push rod. The push rod constitutes an output component and is reciprocally installed in the quick-change interface. One end of the push rod is used to abut against the impact mechanism to receive impact force, and the other end is used to abut against the working tool installed on the quick-change interface. The quick-change interface is used for detachable connection with the working tool.

10. A method for generating impact power using a spring-loaded impact power source according to any one of claims 1 to 9, characterized in that, Includes the following steps: Energy storage steps: The driving unit obtains driving force and transmits it to the intermittent driving module and the energy storage module; the intermittent driving module pushes the driving hammer to compress the energy storage spring, and releases the driving hammer instantaneously when the energy storage spring is compressed to a set position, so that it accelerates under the action of spring force to form an initial impact pulse; Impact step: The accelerating drive hammer strikes the first adjacent impactor in the impact mechanism, and the impact kinetic energy is transferred from the impactor to the next impactor or directly to the power output interface; when multiple impactors are included, each impactor transmits the impact force in sequence until it is transmitted to the power output interface. Output step: The impactor strikes the output component of the power output interface, transmitting the impact force to the external actuator.

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