Spring energy storage device with prepressing and locking functions

Abstract

The invention discloses a spring energy storage device with a prepressing locking function, and relates to the technical field of mechanical energy storage. Comprising a shell, a threaded spindle is rotatably mounted in the shell, a fixing seat is mounted at one end of the threaded spindle through a bearing, the end of the fixing seat is fixedly mounted on the inner wall of the shell, a rotating shaft is fixedly mounted at the end, away from the fixing seat, of the threaded spindle, and the rotating shaft rotationally penetrates through the end face of the shell and is fixedly provided with a transmission head; a pressing plate is fixedly arranged on the surface of the threaded sleeve, and a force storage elastic piece is fixedly arranged on the pressing plate and the end face of the fixing base jointly. The device can achieve energy storage through elastic potential energy of the force storage elastic piece, the pressing plate is pushed to reset after the force storage elastic piece is released and reset, the rotating shaft is driven to rotate through a thread pair of the threaded sleeve and the threaded main shaft, the transmission head rotates to release energy, and through mechanical structure conversion, the structure is simple, safe and environmentally friendly, energy storage and energy release can be circularly carried out; and the energy storage space is improved.

Description

Technical Field

[0001] This invention relates to the field of mechanical energy storage technology, and in particular to a spring energy storage device with a pre-compression locking function. Background Technology

[0002] Our daily lives are inseparable from energy storage devices, such as alkaline batteries for household appliances, lithium-ion batteries for mobile devices, and zinc-carbon batteries for low-power devices. Besides batteries, common energy storage devices also include capacitors, thermal energy storage, compressed air energy storage, and electrochemical energy storage. Existing energy storage devices have many drawbacks, and batteries, as the energy storage device most closely related to daily life, have the greatest impact on people due to their shortcomings. First, batteries have long charging times; second, battery energy density and lifespan remain challenges.

[0003] Despite technological advancements, some batteries still suffer from relatively short lifespans and limited energy storage capacities, restricting their application in certain fields. Secondly, battery production and recycling have environmental impacts. From raw material extraction to battery production and final disposal, the process can involve environmental effects such as resource depletion and chemical waste emissions. Furthermore, some battery types pose safety hazards, especially under extreme conditions, potentially leading to fires or explosions.

[0004] In summary, existing commonly used energy storage devices suffer from technical problems such as long charging time and poor reliability. Summary of the Invention

[0005] The purpose of this invention is to provide a spring energy storage device with a pre-compression locking function, which solves the aforementioned technical problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a spring energy storage device with pre-compression locking function, comprising a housing, a threaded spindle rotatably mounted inside the housing, a fixed seat mounted on one end of the threaded spindle, the end of the fixed seat being fixedly mounted on the inner wall of the housing, a rotating shaft fixedly mounted on the end of the threaded spindle away from the fixed seat, the rotating shaft passing through and rotating on the end face of the housing and having a transmission head fixedly mounted thereon, a threaded sleeve threaded onto the surface of the threaded spindle, a pressure plate fixedly mounted on the surface of the threaded sleeve, and a force-accumulating elastic element fixedly mounted together with the end face of the pressure plate and the fixed seat.

[0007] Preferably, a limiting groove is formed through the surface of the housing, and a limiting block is slidably sleeved on the inner wall of the limiting groove, and the limiting block is fixedly installed on the end face of the pressure plate.

[0008] Preferably, the end of the limiting groove extends to provide a locking groove that penetrates the surface of the housing, a top rod is fixedly installed on the end face of the limiting block, a second frustum is fixedly installed on the end of the top rod away from the limiting block, a locking sleeve is slidably installed on the inner wall of the locking groove, and the second frustum is elastically engaged with the inner wall of the locking sleeve.

[0009] Preferably, a protruding rod is fixedly provided at the end of the top rod away from the limiting block, the second truncated cone is fixedly installed on the end face of the protruding rod, and a first truncated cone is slidably sleeved on the surface of the protruding rod. The first truncated cone is located between the top rod and the second truncated cone, and the first truncated cone and the second truncated cone are symmetrically arranged. An adjusting seat is fixedly installed on the surface of the locking sleeve. A receiving cavity penetrating to the inner wall of the locking sleeve is opened inside the adjusting seat. A locking wedge is slidably sleeved on the inner wall of the receiving cavity. A sliding rod is fixedly installed on the end face of the locking wedge. The end of the sliding rod away from the locking wedge penetrates to the surface of the adjusting seat and is fixedly installed with a stop block. A second return spring is sleeved on the surface of the sliding rod. Both the first truncated cone and the second truncated cone are elastically engaged with the locking wedge.

[0010] Preferably, a pull ring is fixedly provided at the end of the locking sleeve, the vertical end of the pull ring is slidably sleeved on the inner wall of the locking groove, the horizontal end of the pull ring is slidably sleeved on the surface of the housing, and the surface of the horizontal end of the pull ring is provided with anti-slip texture. A fixing block is fixedly provided on the surface of the fixing seat away from the threaded spindle, and a return spring is fixedly installed on the surface of the fixing block. The end of the return spring away from the fixing block is fixedly provided on the vertical end of the pull ring.

[0011] Preferably, a limiting block is fixedly installed at one end of the limiting groove near the locking groove, and a through hole is opened through the surface of the limiting block, and the first frustum and the second frustum are slidably sleeved on the inner wall of the through hole.

[0012] Preferably, the limiting groove is arranged symmetrically with the threaded spindle as the center.

[0013] Compared with related technologies, the spring energy storage device with pre-compression locking function provided by the present invention has the following beneficial effects: This invention provides a spring energy storage device with a pre-compression locking function. It connects to an external power source via a transmission head, drives a threaded spindle to rotate via a rotating shaft, and a limiting block slides within a limiting groove, causing a pressure plate to slide on the inner wall of the housing. This compresses the energy-storing elastic element between the pressure plate and the fixed seat, causing the elastic element to contract and store energy. The device stores energy through the elastic potential energy of the elastic element. After the elastic element releases and resets, it pushes the pressure plate to reset. The threaded pair between the threaded sleeve and the threaded spindle drives the rotating shaft to rotate, and the transmission head rotates to release energy. Through this mechanical structure transformation, the device is simple, safe, and environmentally friendly. Energy storage and release can be cyclical, increasing the energy storage capacity.

[0014] This invention provides a spring energy storage device with a pre-compression locking function. During the energy storage process of the energy storage elastic element, the limiting block slides on the inner wall of the limiting groove, thereby driving the push rod to slide towards the inner wall of the lock sleeve. When the second truncated cone moves to the inner wall of the lock sleeve, the inclined surface of the second truncated cone gradually presses against the inclined surface of the locking wedge, and the elastic force of the second return spring causes the locking wedge to retract into the receiving cavity. When the plane of the second truncated cone moves above the plane of the locking wedge, the second return spring releases energy and rebounds, thereby making the plane of the locking wedge fit together with the plane of the second truncated cone. This ensures that after the transmission head is separated from the external power source, the pressure plate in the energy storage state will not rebound and reset. The pure mechanical locking method of wedge self-locking has strong anti-vibration and anti-impact capabilities, and there is no risk of electronic component failure. It is particularly suitable for harsh environments or safety-critical applications. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the shell structure of the present invention; Figure 3 This is a cross-sectional view of the locking sleeve structure of the present invention.

[0016] In the diagram: 1. Housing, 11. Limiting groove, 12. Locking groove, 13. Limiting block, 14. Through hole, 15. Limiting block, 16. Top rod, 17. Locking sleeve, 18. Pull ring, 19. Rotating shaft, 2. Transmission head, 21. Protruding rod, 22. First frustum, 23. Second frustum, 24. Pressure plate, 25. Screw sleeve, 26. Threaded spindle, 27. Energy storage elastic element, 28. Fixed seat, 29. Fixed block, 3. Return spring, 31. Adjusting seat, 32. Receiving cavity, 33. Slide rod, 34. Stop block, 35. Second return spring, 36. Locking wedge block. Detailed Implementation

[0017] Please see Figures 1-3 The present invention provides a technical solution comprising a housing 1, a threaded spindle 26 rotatably mounted inside the housing 1, a fixed seat 28 bearing mounted on one end of the threaded spindle 26, the end of the fixed seat 28 being fixedly mounted on the inner wall of the housing 1, a rotating shaft 19 fixedly mounted on the end of the threaded spindle 26 away from the fixed seat 28, the rotating shaft 19 passing through and rotating on the end face of the housing 1 and fixedly mounted with a transmission head 2, a threaded sleeve 25 threadedly fitted on the surface of the threaded spindle 26, a pressure plate 24 fixedly mounted on the surface of the threaded sleeve 25, and a force-accumulating elastic element 27 fixedly mounted together with the end face of the pressure plate 24 and the fixed seat 28; a limiting groove 11 is formed through the surface of the housing 1, a limiting block 15 is slidably fitted on the inner wall of the limiting groove 11, and the limiting block 15 is fixedly mounted on the end face of the pressure plate 24; The drive head 2 is connected to an external power source. The drive shaft 19 drives the threaded spindle 26 to rotate. The limiting block 15 slides inside the limiting groove 11, which in turn drives the pressure plate 24 to slide on the inner wall of the housing 1. This compresses the energy storage elastic element 27 between the pressure plate 24 and the fixed seat 28, causing the energy storage elastic element 27 to contract and store energy. The device can store energy through the elastic potential energy of the energy storage elastic element 27. After the energy storage elastic element 27 is released and reset, it pushes the pressure plate 24 to reset. The threaded pair between the threaded sleeve 25 and the threaded spindle 26 drives the drive shaft 19 to rotate and the drive head 2 to rotate and release energy. Through mechanical structure conversion, the structure is simple, safe and environmentally friendly. Energy storage and release can be carried out in cycles, which improves the energy storage space.

[0018] A locking groove 12 extending through the surface of the housing 1 is provided at the end of the limiting groove 11. A push rod 16 is fixedly installed on the end face of the limiting block 15. A second frustum 23 is fixedly installed on the end of the push rod 16 away from the limiting block 15. A locking sleeve 17 is slidably installed on the inner wall of the locking groove 12. The second frustum 23 is elastically engaged with the inner wall of the locking sleeve 17. A protrusion 21 is fixedly provided on the end of the push rod 16 away from the limiting block 15. The second frustum 23 is fixedly installed on the end face of the protrusion 21. A first frustum 22 is slidably sleeved on the surface of the protrusion 21. The first frustum 22 is located between the push rod 16 and the second frustum 23. Between them, the first truncated cone 22 and the second truncated cone 23 are symmetrically arranged. An adjusting seat 31 is fixedly installed on the surface of the locking sleeve 17. The adjusting seat 31 has a receiving cavity 32 that extends through to the inner wall of the locking sleeve 17. A locking wedge 36 is slidably sleeved on the inner wall of the receiving cavity 32. A sliding rod 33 is fixedly installed on the end face of the locking wedge 36. The end of the sliding rod 33 away from the locking wedge 36 extends through to the surface of the adjusting seat 31 and is fixedly installed with a stop block 34. A return spring 35 is sleeved on the surface of the sliding rod 33. The first truncated cone 22 and the second truncated cone 23 are elastically engaged with the locking wedge 36. During the energy storage process of the energy storage elastic element 27, the limiting block 15 slides on the inner wall of the limiting groove 11, thereby driving the push rod 16 to slide towards the inner wall of the locking sleeve 17. When the second truncated cone 23 moves to the inner wall of the locking sleeve 17, the inclined surface of the second truncated cone 23 gradually presses against the inclined surface of the locking wedge 36. And by the elastic force of the second return spring 35, the locking wedge 36 is driven to retract into the receiving cavity 32. When the plane of the second truncated cone 23 moves above the plane of the locking wedge 36, the second return spring 35 releases energy and rebounds, so that the plane of the locking wedge 36 is in contact with the plane of the second truncated cone 23. This ensures that after the transmission head 2 is separated from the external power source, the pressure plate 24 in the energy storage state will not rebound and reset. The pure mechanical locking method of wedge self-locking has strong anti-vibration and anti-impact capabilities, and there is no risk of electronic component failure. It is particularly suitable for harsh environments or safety-critical applications.

[0019] A pull ring 18 is fixedly provided at the end of the lock sleeve 17. The vertical end of the pull ring 18 is slidably sleeved on the inner wall of the locking groove 12, and the horizontal end of the pull ring 18 is slidably sleeved on the surface of the housing 1. The horizontal end of the pull ring 18 is provided with anti-slip texture. A fixing block 29 is fixedly provided on the surface of the fixing seat 28 away from the threaded spindle 26. A return spring 3 is fixedly installed on the surface of the fixing block 29. The end of the return spring 3 away from the fixing block 29 is fixedly provided on the vertical end of the pull ring 18. When the pressure plate 24 needs to be released, the pull ring 18 is pushed against the inner wall of the locking groove 12 to move the locking wedge 36. During this process, the return spring 3 is stretched and can prevent the energy storage elastic element 27 from being released by pulling the limit block 15 on the inner wall of the limit groove 11. As a result, the inclined surface of the locking wedge 36 is squeezed into the receiving cavity 32 by the first truncated cone 22. When the locking wedge 36 moves to the inclined surface position of the first truncated cone 22, the pull ring 18 is released, causing the return spring 3, which is in a stretched state, to spring back to its original position. The pulling force of the locking wedge 36 drives the return spring 3 to move. The first frustum 22 slides on the surface of the protruding rod 21, causing the flat end of the first frustum 22 to fit against the flat end of the second frustum 23. As a result, after the tip of the locking wedge 36 disengages from the inclined surface of the first frustum 22, it will not continue to fit against the flat end of the second frustum 23, but will instead slide directly from the inclined end of the second frustum 23. This causes the second frustum 23 to lose its engagement with the locking wedge 36, thus smoothly releasing the energy storage elastic element 27. The threaded spindle 26 is driven to rotate by the threaded sleeve 25, which in turn drives the transmission head 2 to rotate and output energy.

[0020] A limiting block 13 is fixedly installed at one end of the limiting groove 11 near the locking groove 12. A through hole 14 is opened through the surface of the limiting block 13. The first truncated cone 22 and the second truncated cone 23 are slidably sleeved on the inner wall of the through hole 14. The stroke of the energy storage elastic member 27 will be limited by the contact between the through hole 14 and the limiting block 15.

[0021] The limiting groove 11 is symmetrically arranged with the threaded spindle 26 as the center, which makes the device operation more stable and improves the locking effect of the device in the energy storage state.

Claims

1. A spring energy storage device with preload locking function, comprising a housing (1), characterized in that: A threaded spindle (26) is rotatably mounted inside the housing (1). A fixed seat (28) is mounted on one end of the threaded spindle (26) with a bearing. The end of the fixed seat (28) is fixedly mounted on the inner wall of the housing (1). A rotating shaft (19) is fixedly mounted on the end of the threaded spindle (26) away from the fixed seat (28). The rotating shaft (19) rotates through the end face of the housing (1) and is fixedly mounted with a transmission head (2). A threaded sleeve (25) is threaded on the surface of the threaded spindle (26). A pressure plate (24) is fixedly mounted on the surface of the threaded sleeve (25). A force-accumulating elastic element (27) is fixedly mounted on the end face of the pressure plate (24) and the fixed seat (28).

2. The spring energy storage device with pre-compression locking function according to claim 1, characterized in that: A limiting groove (11) is formed through the surface of the housing (1), and a limiting block (15) is slidably sleeved on the inner wall of the limiting groove (11). The limiting block (15) is fixedly installed on the end face of the pressure plate (24).

3. A spring energy storage device with pre-compression locking function according to claim 2, characterized in that: The end of the limiting groove (11) extends into a locking groove (12) that penetrates the surface of the housing (1). A top rod (16) is fixedly installed on the end face of the limiting block (15). A second frustum (23) is fixedly installed on the end of the top rod (16) away from the limiting block (15). A lock sleeve (17) is slidably installed on the inner wall of the locking groove (12). The second frustum (23) is elastically engaged with the inner wall of the lock sleeve (17).

4. A spring energy storage device with pre-compression locking function according to claim 3, characterized in that: A protruding rod (21) is fixedly provided at one end of the top rod (16) away from the limiting block (15). The second truncated cone (23) is fixedly installed on the end face of the protruding rod (21). A first truncated cone (22) is slidably sleeved on the surface of the protruding rod (21). The first truncated cone (22) is located between the top rod (16) and the second truncated cone (23), and the first truncated cone (22) and the second truncated cone (23) are symmetrically arranged. An adjusting seat (31) is fixedly installed on the surface of the locking sleeve (17). An adjusting seat (31) is provided inside the adjusting seat (31). A receiving cavity (32) extends through the inner wall of the locking sleeve (17). A locking wedge (36) is slidably fitted on the inner wall of the receiving cavity (32). A slide rod (33) is fixedly installed on the end face of the locking wedge (36). One end of the slide rod (33) away from the locking wedge (36) extends through the surface of the adjusting seat (31) and is fixedly fitted with a stop block (34). A second reset spring (35) is fitted on the surface of the slide rod (33). The first frustum (22) and the second frustum (23) are both elastically engaged with the locking wedge (36).

5. A spring energy storage device with pre-compression locking function according to claim 4, characterized in that: The end of the lock sleeve (17) is fixedly provided with a pull ring (18). The vertical end of the pull ring (18) is slidably sleeved on the inner wall of the locking groove (12). The horizontal end of the pull ring (18) is slidably sleeved on the surface of the housing (1). The horizontal end of the pull ring (18) is provided with anti-slip texture. The surface of the fixed seat (28) away from the threaded spindle (26) is fixedly provided with a fixing block (29). The surface of the fixing block (29) is fixedly installed with a return spring (3). The end of the return spring (3) away from the fixing block (29) is fixedly provided on the vertical end of the pull ring (18).

6. A spring energy storage device with pre-compression locking function according to claim 5, characterized in that: A limiting block (13) is fixedly installed at one end of the limiting groove (11) near the locking groove (12). A through hole (14) is opened through the surface of the limiting block (13). The first frustum (22) and the second frustum (23) are slidably sleeved on the inner wall of the through hole (14).

7. A spring energy storage device with pre-compression locking function according to claim 6, characterized in that: The limiting groove (11) is arranged symmetrically with the threaded spindle (26) as the center.

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