Electric cylinder with reminding function and quick release structure thereof

Abstract

The utility model discloses an electric cylinder with a reminding function and a quick release structure thereof, the electric cylinder is provided with a worm gear, the quick release structure comprises a clutch seat, a clutch plate, a linkage rod group, a position sensor and a warning indicator, and the clutch plate can be rotatably connected to the worm gear along with the worm gear and can move relative to the clutch seat so as to be connected with or separated from the clutch seat; one end of the linkage rod set is provided with a pullable part, the other end of the linkage rod set is fixedly connected to the clutch plate and provided with a sliding block arranged between the pullable part and the clutch plate, and the pullable part can drive the sliding block to move through the linkage rod set and then drive the clutch plate and the clutch base to be separated from each other. The position sensor is arranged corresponding to the slide block and can generate a displacement signal when sensing the movement of the slide block; the warning indicator sends out warning after receiving the displacement signal, so that the electric cylinder and the quick release structure have the function of starting early warning before quick release.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of electric cylinder structure, and particularly related to a kind of electric cylinder with reminding function and its quick release structure. BACKGROUND

[0002] Electric cylinder (Linear Actuator) is installed in electric sickbed, treadmill, wheelchair and other aspects, to be as the adjustment conversion of the height or the size of the angle of position. Among them in the process of first-aid treatment to patient, usually through quick release structure to make quick release to electric cylinder, so that sickbed can quickly recover flat state, to strive for the most precious golden rescue time.

[0003] However, in the process of quick release of electric cylinder, sickbed must quickly drop in extremely short time, and the impact generated is extremely easy to cause panic emotion of patient. Therefore, how to start early warning function before quick release of electric cylinder to improve the use safety of electric cylinder is the research and development emphasis of electric cylinder manufacturer.

[0004] Therefore, the utility model is targeted at the prior art, and carefully studies and cooperates with the use of theory, to solve the above problems, that is, the improvement target of the utility model. UTILITY MODEL CONTENT

[0005] The utility model provides a kind of electric cylinder with reminding function and its quick release structure, which utilizes pullable part to drive slider to move first, then drive clutch plate and clutch seat to separate each other through connecting rod group, position sensor senses that slider moves to generate displacement signal, warning device sends warning after receiving displacement signal, to achieve that the electric cylinder and quick release structure of the utility model have early warning function before quick release.

[0006] In the embodiment of the utility model, the utility model provides a kind of quick release structure with reminding function, is installed in an electric cylinder, the electric cylinder has a shell, a lead screw, a worm and a worm wheel, the worm wheel is arranged at the end of the lead screw and is engaged with the worm transmission, and the quick release structure includes: a clutch seat, which is sleeved on the lead screw and can rotate with the lead screw; a clutch plate, which is rotatably connected to the worm wheel and can move relative to the clutch seat to engage with the clutch seat or separate each other; a connecting rod group, which is movably installed in the shell, one end of the connecting rod group has a pullable part, the other end is fixed to the clutch plate and has a slider arranged between the pullable part and the clutch plate, the pullable part drives the slider to move first, then drives the clutch plate and the clutch seat to separate each other through the connecting rod group; a position sensor, which is configured corresponding to the slider and senses that the slider moves to generate a displacement signal; and a warning device, which sends a warning after receiving the displacement signal.

[0007] The slider extends a contact block, the position sensor has a micro switch, and the micro switch generates the displacement signal when the contact block presses the micro switch.

[0008] The linkage assembly includes the slider, a rocker, a pull rod, and at least one pull rope. The slider is movably mounted to the electric cylinder and located outside the housing. The rocker is pivotally connected to the housing and has an end fixed to the clutch plate. The pull rod has one end fixed to one end of the slider and another end fixed to the rocker. The at least one pull rope is connected to another end of the slider and partially exposed outside the slider.

[0009] The number of pull ropes is two. The slider has a container groove and a front sidewall and a rear sidewall formed on both sides of the container groove. The front sidewall has two first through holes. Each pull rope includes a rope body passing through each first through hole, a pull handle and a stop block fixed to both ends of the rope body, and an elastic element sleeved on the rope body. Each pull handle is exposed outside the slider to form the pullable part. Each stop block and the elastic element are accommodated in the container groove, and each elastic element is elastically supported between each stop block and the front sidewall.

[0010] The rear sidewall has a second through hole. The pull rod includes a movable rod and a nut. One end of the movable rod passes through the second through hole and is screwed with the nut, and the other end of the movable rod is fixed to the rocker.

[0011] The linkage assembly further includes a support box frame mounted outside the housing and a box cover pivotally connected to the support box frame and covering the support box frame. The support box frame extends two first sliding rails. The slider is movably accommodated in the support box frame. The left and right sides of the slider extend two second sliding rails. The two first sliding rails are located above the two second sliding rails. The position sensor is accommodated in the support box frame. The support box frame is provided with two first through holes corresponding to the two first through holes and configured to pass the rope body, and a second through hole corresponding to the second through hole and configured to pass the movable rod. Each pull handle is arranged outside the support box frame.

[0012] The pull rod further includes a positioning member and a reset element. The positioning member is fixed to the housing and arranged between the nut and the rocker. The reset element is sleeved on the movable rod and elastically supported between the positioning member and the rocker.

[0013] The rocker is a U-shaped rocker. The middle segment of the U-shaped rocker is fixed to the movable rod. Both ends of the U-shaped rocker are fixed to both sides of the clutch plate. The U-shaped rocker has two pivot points pivotally connected to the housing between the middle segment and both ends.

[0014] In the embodiment of the utility model, the utility model provides a kind of electric cylinder with reminding function, it include: a electric cylinder body, including a shell and being arranged in the shell one motor, a lead screw and a worm gear, the motor has a worm, the worm gear is arranged in the lead screw end and is engaged with the worm transmission;And a quick-release structure, include: a clutch seat, sleeve solid in the lead screw and can be co-rotated with the lead screw;Clutch plate, can be rotatably connected in the worm gear and can be moved relative to the clutch seat, to be engaged with the clutch seat and be connected or be separated from each other;Linkage rod group, can be movably installed in the shell, the linkage rod group one end has a pullable part, the other end is fixed to the clutch plate and has a slider between the pullable part and the clutch plate, the pullable part can be moved by the linkage rod group first drive the slider, then drive the clutch plate and the clutch seat separate from each other;Position sensor, corresponding slider is configured and senses that the slider moves will generate a displacement signal;And alarm, after receiving the displacement signal, issue a warning.

[0015] Wherein, the slider extends a touch block, the position sensor has a microswitch, the microswitch is touched by the touch block and will generate the displacement signal.

[0016] Wherein, the linkage rod group includes the slider, a rocker arm, a pull rod and at least one pull rope, the slider is movably installed in the electric cylinder body and located outside the shell, the rocker arm is pivoted to the shell and the end is fixed to the clutch plate, the pull rod one end is fixed to the slider and the other end is fixed to the rocker arm, the at least one pull rope is connected to the other end of the slider and partially exposed to the slider.

[0017] Wherein, the number of pull rope is two, the slider is provided with a container groove and has a front side wall and a rear side wall formed on both sides of the container groove, the front side wall is provided with two first perforations, each pull rope includes a rope body passing through each first perforation, a pull handle and a stop block fixed to both ends of each rope body, and an elastic element sleeved on each rope body, each pull handle is exposed to the slider to form the pullable part, each stop block and each elastic element are accommodated in the container groove, and each elastic element is elastically supported between each stop block and the front side wall.

[0018] Wherein, the rear side wall is provided with a second perforation, the pull rod includes a movable rod and a nut, the movable rod one end passes through the second perforation and is screwed with the nut and the other end is fixed to the rocker arm.

[0019] The linkage assembly further includes a support frame installed outside the housing and a cover pivotally connected to and covering the support frame. The support frame extends with two first slide rails. The slider is movably accommodated in the support frame. Two second slide rails extend from the left and right sides of the slider. The two first slide rails are stopped and limited above the two second slide rails. The position sensor is accommodated in the support frame. The support frame has two first openings corresponding to the two first through holes for each rope to pass through and a second opening corresponding to the second through holes for the movable rod to pass through. Each pull handle is disposed outside the support frame.

[0020] The pull rod further includes a positioning element and a reset element. The positioning element is fixed to the housing and disposed between the nut and the rocker arm. The reset element is sleeved on the movable rod and elastically supported between the positioning element and the rocker arm.

[0021] The rocker arm is a U-shaped rocker arm. The middle section of the U-shaped rocker arm is fixedly connected to the movable rod, and the two ends of the U-shaped rocker arm are fixedly connected to both sides of the clutch plate. The U-shaped rocker arm has two pivot points that are pivotally connected to the housing between the middle section and the two ends.

[0022] Based on the above, the process of the pullable part being pulled can be achieved by first driving the slider to move through the linkage group, and then driving the clutch plate and clutch seat to separate from each other. Therefore, before the rocker arm moves the clutch plate and clutch seat to separate from each other, the position sensor will first sense the movement of the slider and generate a displacement signal. After receiving the displacement signal, the warning device will immediately issue a warning, so as to achieve the function of starting the warning before the electric cylinder and quick release structure of this utility model have a quick release warning function.

[0023] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention. Attached Figure Description

[0024] Figure 1 This is a three-dimensional assembly diagram of the electric cylinder of this utility model.

[0025] Figure 2 This is an exploded perspective view of the linkage assembly, position sensor, and housing of this utility model.

[0026] Figure 3 This is another perspective view of the electric cylinder of this utility model.

[0027] Figure 4 This is a cross-sectional schematic diagram of the electric cylinder of this utility model.

[0028] Figure 5 This is another cross-sectional view of the electric cylinder of this utility model.

[0029] Figure 6This is a perspective view of the electric cylinder of this utility model in use.

[0030] Figure 7 This is a partially enlarged schematic diagram of the electric cylinder of this utility model.

[0031] Figure 8 This is a three-dimensional schematic diagram of the pull handle of this utility model.

[0032] Figure 9 This is a perspective view of the slider-type micro switch of this utility model.

[0033] Figure 10 This is a three-dimensional schematic diagram of the electric cylinder of this utility model for quickly releasing the telescopic tube.

[0034] Figure 11 This is a three-dimensional schematic diagram of the slider of this utility model continuing to move.

[0035] Figure 12 This is a three-dimensional schematic diagram of the electric cylinder quick-release telescopic tube of this utility model.

[0036] In the attached figures, the following labels are used:

[0037] 10: Electric cylinder

[0038] 1: Electric cylinder body

[0039] 11: Shell

[0040] 111: Support box frame

[0041] 1111: First vent

[0042] 1112: Second vent

[0043] 1113: First slide rail

[0044] 112: Box lid

[0045] 12: Electric motor

[0046] 121: Worm gear

[0047] 13: Lead screw

[0048] 131: External thread

[0049] 14: Nuts

[0050] 15: Expansion pipe

[0051] 16: External pipe

[0052] 2: Fast-release structure

[0053] 21: Worm Gear

[0054] 22: Separation Seat

[0055] 23: Clutch plate

[0056] 3: Linkage rod assembly

[0057] 31: Pullable part

[0058] 32: Slider

[0059] 321: Container

[0060] 322: Anterior sidewall

[0061] 3221: First perforation

[0062] 323: Posterior sidewall

[0063] 3231: Second perforation

[0064] 324: Touch Block

[0065] 325: Second slide rail

[0066] 33: Rocker arm

[0067] 331: U-shaped joystick

[0068] 3311: Pivot Point

[0069] 34: Pull rod

[0070] 341: Movable rod

[0071] 342: Nut

[0072] 343: Positioning component

[0073] 344: Reset element

[0074] 35: Pull cord accessories

[0075] 351: Rope body

[0076] 352: Pull handle

[0077] 353: Stop block

[0078] 354: Elastic element

[0079] 4: Position sensor

[0080] 41: Micro switch

[0081] 5: Alarm device Detailed Implementation

[0082] The detailed description and technical content of this utility model will be explained in conjunction with the accompanying drawings. However, the accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this utility model.

[0083] Please refer to Figures 1 to 12 As shown, this utility model provides an electric cylinder with a reminder function and its quick-release structure. The electric cylinder 10 mainly includes an electric cylinder body 1 and a quick-release structure 2. The quick-release structure 2 mainly includes a clutch seat 22, a clutch plate 23, a linkage rod group 3, a position sensor 4 and an alarm 5.

[0084] like Figure 1 , Figures 3 to 4 , Figures 6 to 12 As shown, the electric cylinder body 1 includes a housing 11, a motor 12, a lead screw 13, a nut 14, a worm gear 21, a telescopic tube 15, and an outer tube 16. The motor 12 and the lead screw 13 are disposed inside the housing 11. The motor 12 has a worm 121, and the lead screw 13 has an external thread 131. The nut 14 is sleeved on the lead screw 13 and is screwed to the external thread 131 of the lead screw 13 for transmission. The outer tube 16 is connected to the housing 11. The telescopic tube 15 is sleeved on the nut 14 and moves with the nut 14, extending and retracting relative to the outer tube 16. The worm gear 21 is housed in the housing 11, disposed at the end of the lead screw 13, and meshes with the worm 121 for transmission, so that the worm 121 can mesh with the worm gear 21 to drive the worm gear 21 to rotate.

[0085] like Figures 1 to 12 As shown, the quick-release structure 2 includes a clutch seat 22, a clutch plate 23, a linkage group 3, a position sensor 4, and an alarm 5. The clutch seat 22 and the clutch plate 23 are housed in the housing 11. The clutch seat 22 is fixed to the lead screw 13 so that it can rotate together with the lead screw 13. The clutch plate 23 is sleeved on the lead screw 13. The clutch plate 23 can rotate with the worm gear 21 and is connected to the worm gear 21. It can also move relative to the clutch seat 22. That is, the clutch plate 23 is movably disposed between the worm gear 21 and the clutch seat 22 so that the clutch plate 23 can engage and move with the clutch seat 22 or separate from it.

[0086] Furthermore, the linkage assembly 3 is movably installed on the housing 11. One end of the linkage assembly 3 has a pullable part 31, and the other end is fixed to the clutch plate 23 and has a slider 32 disposed between the pullable part 31 and the clutch plate 23. The pullable part 31 can first drive the slider 32 to move through the linkage assembly 3, and then drive the clutch plate 23 and the clutch seat 22 to separate from each other.

[0087] The linkage assembly 3 includes a slider 32, a rocker arm 33, a pull rod 34, and one or more pull ropes 35. The slider 32 is movably mounted on the outer tube 16 outside the housing 11 of the electric cylinder body 1. The rocker arm 33 is pivotally connected to the housing 11 and its end is fixed to the clutch plate 23. One end of the pull rod 34 is fixed to one end of the slider 32 and the other end is fixed to the rocker arm 33. One or more pull ropes 35 are connected to the other end of the slider 32 and are partially exposed outside the slider 32 so that the user can pull them.

[0088] The details are as follows: the fast-release structure 2 further includes a support box frame 111 installed on the outer tube 16 and a box cover 112 pivotally connected to the support box frame 111 and covering the support box frame 111. The support box frame 111 has two first openings 1111 and a second opening 1112 on its front and rear sides, and two first slide rails 1113 extend from the inner periphery of the left and right sides of the support box frame 111.

[0089] Furthermore, in this embodiment, a pressing block 324 extends from one side of the outer periphery of the slider 32, and two second slide rails 325 extend from the left and right sides. The two first slide rails 1113 are corresponding to the upper stops of the two second slide rails 325, so that the slider 32 is stopped by the first slide rails 1113 and will not detach from the support box frame 111. This allows the slider 32 to be stably and movablely housed in the support box frame 111. The support box frame 111 is installed on the outer tube 16, that is, the slider 32 is movably installed on the support box frame 111.

[0090] Furthermore, the slider 32 is provided with a receiving groove 321 and a front sidewall 322 and a rear sidewall 323 formed on both sides of the receiving groove 321. The front sidewall 322 is provided with two first through holes 3221 corresponding to the two first openings 1111, and the rear sidewall 323 is provided with a second through hole 3231 corresponding to the second opening 1112.

[0091] Furthermore, the pull rod 34 includes a movable rod 341, a nut 342, a positioning member 343, and a reset element 344. The nut 342 is accommodated in the receiving groove 321. One end of the movable rod 341 passes through the second through hole 1112 and the second through hole 3231 and is screwed to the nut 342, while the other end is fixed to the rocker arm 33, so that the slider 32, the movable rod 341, and the rocker arm 33 are fixed together and move together. The positioning member 343 is fixed to the housing 11 and is disposed between the nut 342 and the rocker arm 33. The reset element 344 is sleeved on the movable rod 341 and elastically supported between the positioning member 343 and the rocker arm 33. In this embodiment, the reset element 344 is a helical spring, but this is not a limitation. The reset element 344 is used to push the rocker arm 33 back to the position where the clutch plate 23 and the clutch seat 22 are engaged and linked.

[0092] In this embodiment, the rocker arm 33 is a U-shaped rocker arm 331, but this is not a limitation. The middle section of the U-shaped rocker arm 331 is fixedly connected to the movable rod 341, and the two ends of the U-shaped rocker arm 331 are fixedly connected to both sides of the clutch plate 23. The U-shaped rocker arm 331 has two pivot points 3311 pivotally connected to the housing 11 between the middle section and the two ends, so that the movable rod 341 can drive the U-shaped rocker arm 331 to swing around the two pivot points 3311 to pull the clutch plate 23 to translate between the worm gear 21 and the clutch seat 22.

[0093] Furthermore, in this embodiment, the number of pull cord components 35 is two, but this is not a limitation. Each pull cord component 35 includes a rope body 351 passing through each first opening 1111 and each first through hole 3221, a pull handle 352 and a stop block 353 fixed to both ends of each rope body 351, and an elastic element 354 sleeved on each rope body 351. Each pull handle 352 is disposed outside the support box frame 111, and the support box frame 111 is mounted on the outer tube 16 outside the housing 11. Each pull handle 352 (partial pull cord 35) is exposed outside the support box frame 111, forming a pullable part 31 that can be pulled out by the user. Each stop block 353 and each elastic element 354 are accommodated in the receiving groove 321, and each elastic element 354 is elastically supported between each stop block 353 and the front side wall 322, so that when the pull handle 352 is pulled, the cord 351, the stop block 353 and the slider 32 can be moved in sequence, and the slider 32 then drives the movable rod 341 to move. In this embodiment, the elastic element 354 is a helical spring, but it is not a limitation. The elastic element 354 is used to pull the pull handle 352 back to the position against the support box frame 111.

[0094] Furthermore, the position sensor 4 is configured corresponding to the slider 32, and sensing the movement of the slider 32 generates a displacement signal. The alarm 5 receives the displacement signal and issues an alarm. In this embodiment, the position sensor 4 has a micro switch 41. When the micro switch 41 is pressed by the contact block 324, it generates a displacement signal. However, this is not a limitation; the position sensor 4 can also be a capacitance, Hall effect, inductance, LVDT, LVIT, magnetoresistive, optical, or resistive sensor. The alarm 5 is mounted on the support box frame 111, but this is not a limitation; the alarm 5 can also be installed in an external control box or other areas. The alarm 5 can be an alarm light or a buzzer. The alarm light illuminates after receiving the displacement signal, and the buzzer sounds an alarm after receiving the displacement signal.

[0095] like Figures 5 to 12 The image shows the usage state of the electric cylinder 10 and the fast-release structure 2 of this utility model. Firstly, as shown... Figures 5 to 7 As shown, when the electric cylinder 10 is adjusting its position (height or elevation angle), the worm gear 21 engages with the clutch plate 23 and the clutch seat 22, causing the worm 121 to drive the lead screw 13 to rotate sequentially through the worm gear 21, the clutch plate 23, and the clutch seat 22. The lead screw 13 then drives the telescopic tube 15 to extend or retract relative to the outer tube 16 through the nut 14.

[0096] In addition, such as Figures 8 to 12As shown, when the electric cylinder 10 needs to be quickly released or reset, the user can pull the handle 352. The handle 352 then sequentially drives the rope 351, the stop block 353, the slider 32, the movable rod 341 and the rocker arm 33 to move. The rocker arm 33 moves the clutch plate 23 and the clutch seat 22 to separate from each other, so that the lead screw 13 is not controlled by the worm gear 121 but is freely rotated by the gravity pull of the nut 14, so that the telescopic tube 15 can quickly retract into the outer tube 16, so that the electric cylinder 10 and the quick-release structure 2 of this utility model have the function of quickly resetting the telescopic tube 15.

[0097] Furthermore, the process of pulling the handle 352 can be achieved by the stop block 353 first driving the slider 32 to move, and then driving the clutch plate 23 to separate from the clutch seat 22. Therefore, before the rocker arm 33 moves the clutch plate 23 to separate from the clutch seat 22, the contact block 324 of the slider 32 first touches the micro switch 41, so that the position sensor 4 is triggered by the slider 32 to generate a displacement signal. After receiving the displacement signal, the alarm 5 immediately issues an alarm, so as to achieve the function of starting the warning before the electric cylinder 10 and the quick release structure 2 of this utility model have a quick release warning function.

[0098] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the claims of this utility model.

Claims

1. A quick-release structure with a reminder function, installed in an electric cylinder, the electric cylinder having a housing, a lead screw, a worm gear, and a worm wheel, the worm wheel being disposed at the end of the lead screw and meshing with the worm gear for transmission, characterized in that, The rapid-release structure includes: A clutch seat is fitted onto the lead screw and can rotate together with the lead screw; A clutch plate is rotatably connected to the worm gear and can move relative to the clutch seat to engage or disengage with the clutch seat. A linkage assembly is movably mounted on the housing. One end of the linkage assembly has a pullable part, the other end is fixed to the clutch plate, and a slider is disposed between the pullable part and the clutch plate. The pullable part first drives the slider to move through the linkage assembly, and then drives the clutch plate to separate from the clutch seat. A position sensor is configured to correspond to the slider and senses movement of the slider to generate a displacement signal; and An alarm device that issues an alert upon receiving the displacement signal.

2. The fast-release structure with reminder function according to claim 1, characterized in that, The slider extends to a pressure block, and the position sensor has a micro switch that generates the displacement signal when the micro switch is pressed by the pressure block.

3. The fast-release structure with reminder function according to claim 1, characterized in that, The linkage assembly includes the slider, a rocker arm, a pull rod, and at least one pull rope. The slider is movably mounted on the electric cylinder and located outside the housing. The rocker arm is pivotally connected to the housing and its end is fixed to the clutch plate. One end of the pull rod is fixed to one end of the slider and the other end is fixed to the rocker arm. The at least one pull rope is connected to the other end of the slider and is partially exposed to the slider.

4. The fast-release structure with reminder function according to claim 3, characterized in that, The number of pull rope components is two. The slider has a receiving groove and a front sidewall and a rear sidewall formed on both sides of the receiving groove. The front sidewall has two first through holes. Each pull rope component includes a rope body passing through each of the first through holes, a pull handle and a stop block fixed to both ends of each rope body, and an elastic element sleeved on each rope body. Each pull handle is exposed on the slider to form the pullable part. Each stop block and each elastic element are received in the receiving groove, and each elastic element is elastically supported between each stop block and the front sidewall.

5. The fast-release structure with reminder function according to claim 4, characterized in that, The rear side wall is provided with a second through hole. The pull rod includes a movable rod and a nut. One end of the movable rod passes through the second through hole and is screwed to the nut, and the other end is fixed to the rocker arm.

6. The fast-release structure with reminder function according to claim 5, characterized in that, The linkage assembly further includes a support frame mounted on the outside of the housing and a cover pivotally connected to and covering the support frame. The support frame extends with two first slide rails. The slider is movably accommodated in the support frame. Two second slide rails extend on the left and right sides of the slider. The two first slide rails are stopped and limited above the two second slide rails. The position sensor is accommodated in the support frame. The support frame has two first openings corresponding to the two first through holes for each rope to pass through and a second opening corresponding to the second through holes for the movable rod to pass through. Each pull handle is disposed outside the support frame.

7. The fast-release structure with reminder function according to claim 5, characterized in that, The pull rod further includes a positioning element and a reset element. The positioning element is fixed to the housing and disposed between the nut and the rocker arm. The reset element is sleeved on the movable rod and elastically supported between the positioning element and the rocker arm.

8. The fast-release structure with reminder function according to claim 5, characterized in that, The rocker arm is a U-shaped rocker arm. The middle section of the U-shaped rocker arm is fixedly connected to the movable rod, and the two ends of the U-shaped rocker arm are fixedly connected to both sides of the clutch plate. The U-shaped rocker arm has two pivot points that are pivotally connected to the housing between the middle section and the two ends.

9. An electric cylinder with a reminder function, characterized in that, include: An electric cylinder body includes a housing and an electric motor, a lead screw, and a worm gear disposed within the housing. The electric motor has a worm, and the worm gear is disposed at the end of the lead screw and meshes with the worm for transmission. A fast-release structure, comprising: A clutch seat is fitted onto the lead screw and can rotate together with the lead screw; A clutch plate is connected to the worm gear and can rotate with it, and can move relative to the clutch seat to engage or disengage with the clutch seat. A linkage assembly is movably mounted on the housing. One end of the linkage assembly has a pullable part, and the other end is fixed to the clutch plate and has a slider disposed between the pullable part and the clutch plate. The pullable part can first drive the slider to move through the linkage assembly, and then drive the clutch plate to separate from the worm gear and the clutch seat. A position sensor is configured to correspond to the slider and senses movement of the slider to generate a displacement signal; and An alarm device that issues an alert upon receiving the displacement signal.

10. The electric cylinder with a reminder function according to claim 9, characterized in that, The slider extends to a pressure block, and the position sensor has a micro switch that generates the displacement signal when the micro switch is pressed by the pressure block.

11. The electric cylinder with a reminder function according to claim 9, characterized in that, The linkage assembly includes the slider, a rocker arm, a pull rod, and at least one pull rope. The slider is movably mounted on the electric cylinder body and located outside the housing. The rocker arm is pivotally connected to the housing and its end is fixed to the clutch plate. One end of the pull rod is fixed to one end of the slider and the other end is fixed to the rocker arm. The at least one pull rope is connected to the other end of the slider and is partially exposed on the slider.

12. The electric cylinder with a reminder function according to claim 11, characterized in that, The number of pull rope components is two. The slider has a receiving groove and a front sidewall and a rear sidewall formed on both sides of the receiving groove. The front sidewall has two first through holes. Each pull rope component includes a rope body passing through each of the first through holes, a handle and a stop block fixed to both ends of each rope body, and an elastic element sleeved on each rope body. Each handle is exposed on the slider to form the pullable part. Each stop block and each elastic element are received in the receiving groove, and each elastic element is elastically supported between each stop block and the front sidewall.

13. The electric cylinder with a reminder function according to claim 12, characterized in that, The rear side wall is provided with a second through hole. The pull rod includes a movable rod and a nut. One end of the movable rod passes through the second through hole and is screwed to the nut, and the other end is fixed to the rocker arm.

14. The electric cylinder with a reminder function according to claim 13, characterized in that, The linkage assembly further includes a support frame mounted on the outside of the housing and a cover pivotally connected to and covering the support frame. The support frame extends with two first slide rails. The slider is movably accommodated in the support frame. Two second slide rails extend on the left and right sides of the slider. The two first slide rails are corresponding to the upper stops of the two second slide rails. The position sensor is accommodated in the support frame. The support frame has two first openings corresponding to the two first through holes for each rope to pass through and a second opening corresponding to the second through holes for the movable rod to pass through. Each pull handle is disposed outside the support frame.

15. The electric cylinder with a reminder function according to claim 13, characterized in that, The pull rod further includes a positioning element and a reset element. The positioning element is fixed to the housing and disposed between the nut and the rocker arm. The reset element is sleeved on the movable rod and elastically supported between the positioning element and the rocker arm.

16. The electric cylinder with a reminder function according to claim 13, characterized in that, The rocker arm is a U-shaped rocker arm. The middle section of the U-shaped rocker arm is fixedly connected to the movable rod, and the two ends of the U-shaped rocker arm are fixedly connected to both sides of the clutch plate. The U-shaped rocker arm has two pivot points that are pivotally connected to the housing between the middle section and the two ends.

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