Anti-jamming lifting stage

Abstract

The present application relates to the field of lifting stage, specifically to a kind of anti-jamming lifting stage, including lifting mechanism, the top of the lifting mechanism is provided with stage, the lifting mechanism is used to drive stage to realize anti-jamming lifting, and can automatically discharge foreign matter;The lifting mechanism includes lifting box, the outside of the lifting box is provided with air hole, the inside of the lifting box is connected with connecting shaft by bearing, one end of the connecting shaft is connected with double-shaft motor by coupling, the outside of the connecting shaft is fixedly connected with toothed sheet, the outside of the toothed sheet is engaged with transmission one-sided rigid chain, the top of the one-sided rigid chain is fixedly connected with the bottom of the stage, by the meshing transmission of the toothed sheet and the one-sided rigid chain, stage lifting is driven, the anti-jamming lifting stage, small impurities on the surface are cleaned in real time by cleaning brush transmission with chain, impurities are automatically discharged by inclined guide plate, without manual regular cleaning.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lifting stage, in particular to a lifting stage capable of preventing jamming. BACKGROUND

[0002] Although the current traditional stage lifting device can meet the basic lifting requirements, there is still room for optimization in terms of "anti-jamming reliability", "safe locking response speed", "multi-scene adaptability", etc. In particular, in high-intensity use scenarios such as large-scale galas, equipment failure may cause the show to be interrupted, resulting in serious economic losses and reputation impact. Therefore, it is urgent to improve the stability and safety of the device through structural innovation.

[0003] There are a large number of dust (such as stage smoke agent residues, prop sawdust), paper scraps, metal scraps (such as prop connecting parts falling off), small tools (such as screws and hairpins dropped by performers) and other impurities in the stage environment. The existing equipment lacks an effective impurity treatment mechanism, which may cause:

[0004] 1. Dust and small debris may accumulate in the meshing part of the chain driving device and the groove of the pulley driven by the steel wire rope; 2. If larger foreign matter (such as screws, prop fragments) enters the driving mechanism (such as the gap between the chain and the guide rail, the gap between the steel wire rope and the pulley), it may directly jam the transmission components, causing the lifting to stop suddenly. SUMMARY

[0005] The present application provides a lifting stage capable of preventing jamming to solve the problems raised in the background.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a lifting stage capable of preventing jamming, comprising a lifting mechanism, a stage arranged on the top of the lifting mechanism, the lifting mechanism being used to drive the stage to realize anti-jamming lifting and automatically discharge foreign matter.

[0007] The lifting mechanism comprises a lifting box, a plurality of air holes are formed in the outer side of the lifting box, a connecting shaft is connected to the inside of the lifting box through a bearing, a double-shaft motor is connected to one end of the connecting shaft through a shaft coupling, a toothed plate is fixedly connected to the outer side of the connecting shaft, a one-way rigid chain is meshingly driven on the outer side of the toothed plate, the top end of the one-way rigid chain is fixedly connected to the bottom of the stage, and the stage is lifted through the meshing drive of the toothed plate and the one-way rigid chain.

[0008] A sliding plate is slidably fitted to the top of the lifting box, a first spring is fixedly connected to the outer side of the sliding plate, and one end of the first spring away from the sliding plate is fixedly connected to the outer side of the lifting box.

[0009] When foreign matter is stuck in the gap between the one-way rigid chain and the sliding plate, the foreign matter is extruded and pushed outwards to the sliding plate.

[0010] A locking mechanism is arranged outside the stage and corresponds to the lifting path of the stage, which is used to quickly lock the stage when the stage is stuck or vibrates frequently to prevent it from falling or deviating. The outside of the locking mechanism is provided with a vertical rail.

[0011] A fan assembly is arranged outside the lifting mechanism and includes a fan and a dust suction pipeline, which is used to suck the dust inside the lifting mechanism through the air holes of the lifting box and discharge it outward to avoid the accumulation of dust causing jamming. The outer side of the fan assembly is fixedly connected with a rack.

[0012] Preferably, the single rigid chain is slidably fitted with a U-shaped rail away from one side of the toothed sheet, and the U-shaped rail is fixedly installed inside the lifting box.

[0013] Preferably, a guide plate is fixedly installed inside the lifting box, which is an inclined metal plate with its high end close to the single rigid chain and its low end towards the side wall opening of the lifting box, which is used to guide the foreign matter falling off the single rigid chain to the outside of the lifting box to realize foreign matter removal.

[0014] The end of the guide plate away from the outer wall of the lifting box is fixedly connected with a cleaning brush, and the end of the cleaning brush away from the guide plate is in extrusion fitting with the single rigid chain, which is used to clean the dust and small impurities attached to the surface of the single rigid chain during transmission to avoid the impurities entering the meshing part causing jamming.

[0015] Preferably, the locking mechanism includes a first elastic rod, which is fixedly installed in the vertical rail, and a first built-in block is fixedly connected to the end of the first elastic rod away from the vertical rail.

[0016] The first elastic rod and the first built-in block are arranged in a linear array form in the vertical rail to form a multi-gear locking position and adapt to the locking requirements of different lifting heights.

[0017] Preferably, a sliding block is slidably fitted inside the vertical rail, and the end of the sliding block away from the vertical rail is fixedly connected with the outer side wall of the stage to slide synchronously with the stage along the vertical rail to provide guidance for the lifting of the stage.

[0018] An installation slot is formed in the inside of the sliding block, and a second elastic rod is fixedly installed in the installation slot. A second built-in block is fixedly connected to the end of the second elastic rod away from the sliding block, and the second built-in block is slidably fitted in the installation slot of the sliding block.

[0019] Preferably, a locking unit is arranged on the outer end face of the sliding block, and the locking unit is located between the sliding block and the first built-in block.

[0020] The locking unit comprises a hollow rod fixedly installed on the outer end surface of the sliding block, and symmetrical hollow pipes are fixedly installed on both ends of the hollow rod, the inside of the hollow pipe is provided with a bearing block, and the inside of the hollow pipe is communicated with the inside of the hollow rod.

[0021] Preferably, the inside of the hollow rod is provided with a pocket frame, the bottom of the pocket frame is fixedly connected with a bottom inclined rod, and the pocket frame and the bottom inclined rod are slidably matched in the inside of the hollow rod.

[0022] The bottom inclined rod is extruded with the second inner block, and is used for limiting the second inner block.

[0023] Preferably, the inner wall of the hollow rod is slidably matched with a sealing plate, the sealing plate is used for isolating the bearing block, one end of the sealing plate away from the bearing block is fixedly connected with a connecting strip, and a column is sleeved on the center part of the connecting strip.

[0024] Preferably, a support frame is fixedly installed on the top of the hollow rod, a shock absorber is fixedly installed on the outer side of the support frame, a spring support strip is fixedly installed on the bottom of the output end of the shock absorber, and the center part of the bottom of the spring support strip is fixedly connected with the top end of the column.

[0025] The shock absorber is used for reducing the vibration of the spring support strip caused by external force.

[0026] Preferably, a second hollow rod is fixedly installed on the outer end surface of the sliding block, the inside of the second hollow rod is slidably matched with the bottom inclined rod, the bottom of the bottom inclined rod is extruded and matched with a top inclined block, the contact parts of the bottom inclined rod and the top inclined block are both inclined surfaces, and the top inclined block penetrates through the side wall of the second hollow rod and extends to the outside thereof.

[0027] Preferably, U-shaped plates are symmetrically connected with both ends of the second hollow rod, second springs are fixedly connected with the inner sides of the U-shaped plates, one end of the second spring away from the U-shaped plate is fixedly connected with the top inclined block, and the second spring is used for giving the top inclined block a supporting force.

[0028] Compared with the prior art, the present application has the following beneficial effects:

[0029] 1. By constructing a triple protection system of dust prevention, impurity cleaning and foreign matter removal, the occurrence rate of jamming is greatly reduced. The fan assembly continuously absorbs the internal dust through the air holes of the lifting box, avoiding the accumulation of dust at the meshing part of the tooth piece and the single-sided rigid chain; the cleaning brush cleans the surface impurities in real time through the chain transmission, and the impurities are automatically discharged through the inclined guide plate, without the need for manual regular cleaning.

[0030] 2. In the face of larger foreign matter, the buffer design of the skateboard and the first spring can avoid the direct jamming of foreign matter to the chain. After the foreign matter is removed, the spring is automatically reset. This fully automated anti-jamming design not only significantly reduces the stage lifting jamming rate, meets the frequent lifting needs in the show scene, but also reduces the cost of manual maintenance and prolongs the service life of the equipment.

[0031] 3. In terms of safety and reliability, the "vibration sensing-mechanical triggering-rigid locking" linkage mechanism of the locking mechanism shows the dual advantages of fast response and power-off application. When the stage appears to be jammed and accompanied by high-frequency vibration, the shock absorber first buffers, and if the vibration cannot be offset, the subsequent mechanical action is triggered. The response time from jamming to completing the locking is much faster than manual intervention, effectively avoiding the risk of stage collapse.

[0032] 4. The multi-gear arrangement of the first built-in block can adapt to the locking needs of different lifting heights, ensuring that the stage can be quickly locked at any height, and the entire locking process does not require power driving, relying only on mechanical structure and gravity triggering. Even if the power is suddenly cut off, it can still work normally, providing solid protection for the safety of performers and equipment. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is an external structure diagram of the anti-jamming lifting stage of the present application.

[0034] Figure 2 It is a structure diagram of the double-shaft motor in the lifting stage equipment of the present application.

[0035] Figure 3 It is a structure diagram of the lifting mechanism of the present application.

[0036] Figure 4 It is an internal structure diagram of the lifting mechanism of the present application.

[0037] Figure 5 It is a structure diagram of the locking mechanism of the present application.

[0038] Figure 6 It is a full-section structure diagram of the locking mechanism of the present application.

[0039] Figure 7 It is an enlarged sectional structure diagram of the second built-in block in the locking mechanism of the present application.

[0040] Figure 8 It is a structure diagram of the locking unit of the present application.

[0041] Figure 9 It is an enlarged sectional structure diagram of the receiving pipe in the locking unit of the present application.

[0042] Figure 10It is the enlarged sectional view structure schematic diagram of spring support strip in the locking unit of the application.

[0043] Figure 11 It is the enlarged sectional view structure schematic diagram of top inclined block in the locking unit of the application.

[0044] In the figure:

[0045] 1, stage;

[0046] 2, lifting mechanism; 21, lifting box; 22, air hole; 23, connecting shaft; 24, toothed piece; 25, unilateral rigid chain; 26, U-shaped rail; 27, sliding plate; 28, No. 1 spring; 29, guide plate; 20, cleaning brush;

[0047] 3, locking mechanism; 31, No. 1 elastic rod; 32, No. 1 inner block; 33, sliding block; 34, No. 2 elastic rod; 35, No. 2 inner block; 36, locking unit;

[0048] 361, No. 1 hollow rod; 362, receiving pipe; 363, bearing block; 364, pocket frame; 365, bottom inclined rod; 366, sealing plate; 367, connecting strip; 368, column body; 369, spring support strip; 360, shock absorber; 3601, support frame; 3602, No. 2 hollow rod; 3603, top inclined block; 3604, No. 2 spring; 3605, U-shaped plate;

[0049] 4, vertical rail;

[0050] 5, fan assembly;

[0051] 6, rack;

[0052] 7, double-shaft motor. DETAILED DESCRIPTION

[0053] In the following, the application will be further described in conjunction with the drawings and specific embodiments. It should be noted that the following described embodiments or technical features can be combined in any manner to form new embodiments, provided that there is no conflict. It should be understood that the described embodiments are only a part of the embodiments of the application, rather than all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the application.

[0054] Please refer to Figures 1 to 11 The application provides a technical solution:

[0055] Embodiment one, stage lifting driving stage.

[0056] As Figure 1 , Figure 2 , Figure 3 andFigure 4 As shown, the bottom of the stage 1 is fixedly connected with the top end of the single-sided rigid chain 25 of the lifting mechanism 2, and the lifting box 21 of the lifting mechanism 2 is fixed on the ground under the stage through the rack 6. When the height of the stage 1 needs to be adjusted, the operator starts the double-shaft motor 7 through the control console, and the output end of the double-shaft motor 7 transmits the torque to the connecting shaft 23 inside the lifting box 21 through the shaft coupling. The connecting shaft 23 is connected with the inner wall of the lifting box 21 through bearings at both ends to ensure stable rotation. The toothed plate 24 fixedly connected to the outer side of the connecting shaft 23 rotates synchronously with the connecting shaft 23, and the teeth of the toothed plate 24 are embedded in the gap between the chain links of the single-sided rigid chain 25, forming a meshing transmission relationship, which converts the rotary motion into the linear motion of the single-sided rigid chain 25. The side of the single-sided rigid chain 25 away from the toothed plate 24 is slidably fitted with the U-shaped rail 26 fixed inside the lifting box 21, which provides guidance for the lifting of the single-sided rigid chain 25 and avoids chain deviation. With the lifting or lowering of the single-sided rigid chain 25, the stage 1 fixed at the top end moves synchronously to achieve height adjustment. At the same time, the sliding block 33 fixedly connected to the outside of the stage 1 slides along the vertical rail 4, which is fixed on the fixed frame around the stage 1, further limiting the lateral displacement of the stage 1, ensuring smooth lifting process and avoiding stage tilting.

[0057] Through the transmission structure of "double-shaft motor 7-connecting shaft 23-toothed plate 24-single-sided rigid chain 25", stable lifting driving force is provided, which avoids the faults caused by hydraulic oil leakage compared with traditional hydraulic lifting. The double-guiding design of U-shaped rail 26 and sliding block 33 controls the lateral deviation of the stage lifting process within 2mm, ensuring the safety of performance equipment and personnel. The synchronous driving characteristics of the double-shaft motor 7 ensure that the lifting speeds of the two single-sided rigid chains 25 are consistent, avoiding stage jamming or tilting due to uneven stress.

[0058] Example two, multi-dimensional anti-jamming processing stage.

[0059] As shown in Figure 3 and Figure 4 The fan assembly 5 is continuously working, which is fixed on the rack 6 and includes a centrifugal fan and a dust suction pipeline. The negative pressure generated by the fan sucks air into the inside of the lifting box 21 through the air holes 22 on the outside of the lifting box 21, and the dust in the air is discharged to the external dust collection equipment through the dust suction pipeline, preventing dust accumulation at the meshing part of the toothed plate 24 and the single-sided rigid chain 25, and avoiding transmission obstruction caused by dust jamming.

[0060] The guide plate 29 fixedly installed inside the lifting box 21 is an inclined metal plate with an inclination of 15°, the high end of which is close to the single-sided rigid chain 25, and the low end thereof faces the opening of the side wall of the lifting box 21 and is fixedly connected therewith; the end of the guide plate 29 close to the single-sided rigid chain 25 is fixedly connected with the cleaning brush 20, and the bristles of the cleaning brush 20 are in extrusion fit with the surface of the single-sided rigid chain 25, so that the cleaning brush 20 can brush off the small impurities such as paper scraps and metal scraps attached to the surface of the single-sided rigid chain 25 during the transmission of the single-sided rigid chain 25, and the impurities fall on the guide plate 29 and are discharged from the opening of the side wall of the lifting box 21 along the inclined surface, thereby avoiding the impurities from entering the meshing part; in addition, the outer side of the sliding plate 27 slidingly fitted at the top of the lifting box 21 is fixedly connected with the first spring 28, and the other end of the first spring 28 is fixed to the outer side of the lifting box 21; if a larger foreign matter such as a screw or a small tool is stuck between the single-sided rigid chain 25 and the sliding plate 27, the foreign matter will extrude and push the sliding plate 27 to move outward, and the first spring 28 will be elastically deformed to produce a buffer, thereby avoiding the foreign matter from being directly stuck in the chain; after the foreign matter moves away from the stuck position along with the chain, the first spring 28 is reset to pull the sliding plate 27 back to the original position, and the foreign matter is discharged out of the lifting box 21 along the guide plate 29.

[0061] The triple anti-jamming design comprehensively guarantees smooth transmission from the three dimensions of dust prevention, impurity cleaning and foreign matter discharge, reduces the occurrence rate of jamming during the stage lifting process, and meets the needs of frequent lifting during the evening show; the cooperation of the cleaning brush 20 and the guide plate 29 realizes automatic discharge of impurities, and manual regular cleaning is not needed, thereby reducing the maintenance cost; the buffer design of the sliding plate 27 avoids motor overload damage caused by foreign matter sticking, and prolongs the service life of the equipment.

[0062] Embodiment three, safety locking stage after stage jamming.

[0063] As shown in Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 and Figure 11 , the shock absorber 360 installed on the support frame 3601 fixedly connected to the outer end surface of the sliding block 33 first senses the vibration, and can preliminarily buffer and release the vibration generated by the stage 1; if the vibration frequency exceeds the preset threshold value, i.e. 0.5 Hz, and the shock absorber 360 cannot offset it, the center part of the spring support bar 369 connected to the output end of the shock absorber 360 will swing with the vibration, and drive the column 368 fixedly connected to the bottom to reciprocate up and down;

[0064] The column 368 passes through the center of the connecting strip 367, the two ends of the connecting strip 367 are fixedly connected with the sealing plate 366 sliding on the inner wall of the first hollow rod 361, the sealing plate 366 is moved by the column 368 and drives the connecting strip 367 to pull the opening of the receiving pipe 362 fixedly connected at the two ends of the first hollow rod 361 to open, and the weight block 363 in the receiving pipe 362 falls into the pocket frame 364 below, wherein the weight block 363 is made of metal material and weighs 500g;

[0065] The pocket frame 364 slides downward along the inside of the first hollow rod 361 after bearing the weight, driving the bottom inclined rod 365 fixed at the bottom to slide downward synchronously, the bottom inclined rod 365 passes through the inside of the second hollow rod 3602 fixedly connected with the outer end surface of the sliding block 33, the inclined surface thereof is pressed against the inclined surface of the top inclined block 3603 in the second hollow rod 3602, and the top inclined block 3603 is stretched out outward under the support of the second spring 3604, wherein the two ends of the second spring 3604 are fixed with the top inclined block 3603 and the U-shaped plate 3605 respectively, and the U-shaped plate 3605 is fixed at the two ends of the second hollow rod 3602, until the bottom inclined rod 365 completely passes through the top inclined block 3603 and is received in the second hollow rod 3602, at this time the bottom inclined rod 365 releases the limiting of the second inner block 35 in the installation groove of the sliding block 33, wherein the second spring 3604 plays a role of resetting the top inclined block 3603;

[0066] The second inner block 35 is stretched out outward under the elastic force of the second elastic rod 34, wherein one end of the second elastic rod 34 is connected with the inner wall of the installation groove of the sliding block 33, and the other end is welded with the second inner block 35, and in addition, the second inner block 35 is pressed and matched with the first inner block 32 linearly arranged in the vertical rail 4, wherein the first inner block 32 is fixed with the inner wall of the vertical rail 4 through the first elastic rod 31, with the downward movement of the bottom inclined rod 365, the second inner block 35 no longer limited, and stretched out outward under the elastic force of the second elastic rod 34, finally the second inner block 35 will be pressed with the first inner block 32 at the same height, and the first elastic rod 31 will be compressed, thereby forming a rigid locking structure to prevent the stage 1 from continuing to move or falling.

[0067] The locking mechanism 3 has a response time far faster than the artificial intervention speed from the occurrence of the jam to the completion of the locking through the linkage mechanism of "vibration sensing-mechanical triggering-rigid locking", effectively avoiding the risk of stage falling; the first inner block 32 arranged in multiple gears can adapt to the locking demand of different lifting heights, ensuring that the jam at any height can be quickly locked; the whole locking process does not need power driving, relying on mechanical structure and gravity triggering, and can work normally even if power is cut off, ensuring the safety of the performance.

[0068] The first spring 28 and the second spring 3604 will be matched with damping structures to realize stable work in actual setting.

[0069] The working principle of this invention is as follows: When it is necessary to drive the stage 1 to rise or fall, the dual-axis motor 7 starts first. Its output end transmits torque to the connecting shaft 23 through a coupling. The connecting shaft 23 rotates stably under the support of bearings inside the lifting box 21. Since a toothed plate 24 is fixedly connected to the outside of the connecting shaft 23, the toothed plate 24 rotates synchronously with the connecting shaft 23 and forms a meshing transmission relationship with the single-sided rigid chain 25. The teeth of the toothed plate 24 are embedded in the gaps between the links of the single-sided rigid chain 25, and the rotational motion is converted into the linear motion of the single-sided rigid chain 25. The top end of the single-sided rigid chain 25 is fixedly connected to the bottom of the stage 1. Therefore, the rise or fall of the single-sided rigid chain 25 will directly drive the stage 1 to move synchronously, realizing the adjustment of the stage height. At the same time, the slider 33 fixedly connected to the outside of the stage 1 slides along the vertical rail 4, further providing longitudinal guidance for the rise and fall of the stage 1.

[0070] The anti-jamming measures are implemented in three aspects: First, the fan assembly 5 operates continuously, absorbing internal dust through the air vents 22 of the lifting box 21 and discharging it through the dust extraction pipe, preventing dust accumulation at the meshing points of the toothed plate 24 and the single-sided rigid chain 25; Second, the cleaning brush 20 inside the lifting box 21 is squeezed and fitted to the single-sided rigid chain 25, cleaning small impurities on the surface during chain drive. The impurities fall onto the inclined guide plate 29 and are discharged from the side wall opening of the lifting box 21 along the inclined surface; Third, if a foreign object is stuck between the single-sided rigid chain 25 and the slide plate 27, the foreign object squeezes and pushes the slide plate 27, causing the slide plate 27 to move outward. At the same time, the deformation of the first spring 28 provides buffering. After the foreign object is discharged, the spring returns to its original position, pulling the slide plate 27 back to its original position to avoid jamming. In addition, the fallen foreign object is discharged outward along the guide plate 29 from the side wall opening.

[0071] When stage 1 experiences a jam accompanied by high-frequency vibration, locking mechanism 3 is activated quickly. After the shock absorber 360 senses the vibration and is unable to counteract it, the center of the spring support bar 369 will swing with the vibration, causing the column 368 to move up and down reciprocally. The connecting bar 367 then pulls the sealing plate 366 to shift, at which point the load-bearing block 363 inside the receiving pipe 362 falls into the pocket frame 364. After the frame 364 bears the weight, it causes the bottom inclined rod 365 to slide down, squeezing the top inclined block 3603. The top inclined block 3603 extends outward under the support of the second spring 3604 until the bottom inclined rod 365 passes through the top inclined block 3603. Finally, the top of the bottom inclined rod 365 will retract into the second hollow rod 3602, so that the bottom inclined rod 365 no longer limits the second inner block 35. Then, under the elastic force of the second elastic rod 34, the second inner block 35 will extend outward and squeeze the first inner block 32 at the same height, so as to realize the stage 1 quickly locking, prevent falling or displacement, and ensure safety.

[0072] The above embodiments are only the preferred embodiments of the present application, and cannot be used to limit the protection scope of the present application, and any changes made by those skilled in the art based on the above concept without creative labor, all fall within the protection scope of the present application.

Claims

1. A non-stuck lift stage, characterized in that, Include: Lifting mechanism, the top of the lifting mechanism is provided with a stage, the lifting mechanism is used to drive the stage to realize the anti-jamming lifting, and can automatically discharge foreign matter; The lifting mechanism includes a lifting box, a gas hole is formed on the outer side of the lifting box, a connecting shaft is connected to the inside of the lifting box through a bearing, one end of the connecting shaft is connected with a double-shaft motor through a shaft coupling, the outer side of the connecting shaft is fixedly connected with a toothed plate, the outer side of the toothed plate is engaged with a single-sided rigid chain, the top end of the single-sided rigid chain is fixedly connected with the bottom of the stage, the single-sided rigid chain is driven to lift the stage through the engagement transmission of the toothed plate and the single-sided rigid chain; The inside of the lifting box is fixedly installed with a guide plate, the guide plate is an inclined metal plate, the high end of the guide plate is close to the single-sided rigid chain, and the low end of the guide plate is towards the side wall opening of the lifting box, which is used to guide the foreign matter falling off from the single-sided rigid chain to the outside of the lifting box, so as to realize the foreign matter removal; One end of the guide plate fixedly connected with the outer wall of the lifting box is fixedly connected with a cleaning brush, one end of the cleaning brush away from the guide plate is in extrusion fit with the single-sided rigid chain, which is used to clean the dust and small impurities attached to the surface of the single-sided rigid chain during the transmission process of the single-sided rigid chain, so as to avoid the impurities entering the engagement part to cause jamming; The top of the lifting box is slidably fitted with a sliding plate, the outer side of the sliding plate is fixedly connected with a first spring, one end of the first spring away from the sliding plate is fixedly connected to the outer side of the lifting box; The foreign matter is extruded and pushed outwards to the sliding plate by being stuck in the gap between the single-sided rigid chain and the sliding plate; The locking mechanism is arranged on the outer side of the stage and corresponds to the lifting path of the stage, which is used to quickly lock the stage when the stage appears jamming or high-frequency vibration, so as to prevent the stage from falling or deviating, and the outer side of the locking mechanism is provided with a vertical rail; The fan assembly is arranged on the outer side of the lifting mechanism and includes a fan and a dust suction pipeline, which is used to suck the dust in the inside of the lifting mechanism through the gas hole of the lifting box and discharge it outward, so as to avoid the dust accumulation to cause jamming, and the outer side of the fan assembly is fixedly connected with a rack.

2. The anti-jamming lifting stage according to claim 1, characterized in that: The single-sided rigid chain away from the toothed plate is slidably fitted with a U-shaped rail, and the U-shaped rail is fixedly installed in the inside of the lifting box.

3. The anti-jamming lifting stage according to claim 1, characterized in that: The locking mechanism includes a first elastic rod, the first elastic rod is fixedly installed in the vertical rail, one end of the first elastic rod away from the vertical rail is fixedly connected with a first inner block; The first elastic rod and the first inner block are provided with a plurality of groups and are arranged in a linear array in the vertical rail to form a multi-gear locking position and adapt to the locking requirements of different lifting heights.

4. The anti-jamming lifting stage according to claim 3, characterized in that: The inside of the vertical rail is slidably fitted with a sliding block, one end of the sliding block away from the vertical rail is fixedly connected with the outer side wall of the stage, and the sliding block slides synchronously with the stage along the vertical rail to provide guidance for the stage lifting; The inside of the sliding block is provided with a mounting groove, and a second elastic rod is fixedly installed in the mounting groove, one end of the second elastic rod away from the sliding block is fixedly connected with a second inner block, and the second inner block is slidably fitted in the mounting groove of the sliding block.

5. The anti-stuck lift stage according to claim 4, characterized in that: The outer end surface of the sliding block is provided with a locking unit between the sliding block and the first inner block; The locking unit comprises a first hollow rod fixedly installed on the outer end surface of the sliding block, and symmetrical hollow pipes are fixedly installed at both ends of the first hollow rod, the inside of the hollow pipe is provided with a bearing block, and the inside of the first hollow rod is communicated with the inside of the first hollow rod.

6. The anti-jamming lifting stage according to claim 5, characterized in that: The inside of the first hollow rod is provided with a pocket frame, the bottom of the pocket frame is fixedly connected with a bottom inclined rod, and the pocket frame and the bottom inclined rod are slidably fitted in the inside of the first hollow rod. The bottom inclined rod is in extrusion with the second inner block, and is used for limiting the second inner block.

7. The anti-jamming lifting stage according to claim 5, characterized in that: The inner wall of the first hollow rod is slidably fitted with a sealing plate, the sealing plate is used for isolating the bearing block, one end of the sealing plate away from the bearing block is fixedly connected with a connecting strip, and the center of the connecting strip is sleeved with a column.

8. The anti-stuck lift stage according to claim 7, characterized in that: The top of the first hollow rod is fixedly installed with a support frame, the outer side of the support frame is fixedly installed with a shock absorber, the bottom of the output end of the shock absorber is fixedly installed with a spring support strip, and the center of the bottom of the spring support strip is fixedly connected with the top end of the column. The shock absorber is used for reducing the vibration of the spring support strip caused by external force.

9. The anti-stuck lift stage according to claim 6, characterized in that: The outer end surface of the sliding block is provided with a locking unit between the sliding block and the first inner block; 10. The anti-stuck lift stage according to claim 9, wherein: The locking unit comprises a first hollow rod fixedly installed on the outer end surface of the sliding block, and symmetrical hollow pipes are fixedly installed at both ends of the first hollow rod, the inside of the hollow pipe is provided with a bearing block, and the inside of the first hollow rod is communicated with the inside of the first hollow rod. The inside of the first hollow rod is provided with a pocket frame, the bottom of the pocket frame is fixedly connected with a bottom inclined rod, and the pocket frame and the bottom inclined rod are slidably fitted in the inside of the first hollow rod. The bottom inclined rod is in extrusion with the second inner block, and is used for limiting the second inner block. The inner wall of the first hollow rod is slidably fitted with a sealing plate, the sealing plate is used for isolating the bearing block, one end of the sealing plate away from the bearing block is fixedly connected with a connecting strip, and the center of the connecting strip is sleeved with a column. The top of the first hollow rod is fixedly installed with a support frame, the outer side of the support frame is fixedly installed with a shock absorber, the bottom of the output end of the shock absorber is fixedly installed with a spring support strip, and the center of the bottom of the spring support strip is fixedly connected with the top end of the column. The shock absorber is used for reducing the vibration of the spring support strip caused by external force. The outer end surface of the sliding block is provided with a locking unit between the sliding block and the first inner block; The locking unit comprises a first hollow rod fixedly installed on the outer end surface of the sliding block, and symmetrical hollow pipes are fixedly installed at both ends of the first hollow rod, the inside of the hollow pipe is provided with a bearing block, and the inside of the first hollow rod is communicated with the inside of the first hollow rod. The inside of the first hollow rod is provided with a pocket frame, the bottom of the pocket frame is fixedly connected with a bottom inclined rod, and the pocket frame and the bottom inclined rod are slidably fitted in the inside of the first hollow rod. The bottom inclined rod is in extrusion with the second inner block, and is used for limiting the second inner block. The inner wall of the first hollow rod is slidably fitted with a sealing plate, the sealing plate is used for isolating the bearing block, one end of the sealing plate away from the bearing block is fixedly connected with a connecting strip, and the center of the connecting strip is sleeved with a column. The top of the first hollow rod is fixedly installed with a support frame, the outer side of the support frame is fixedly installed with a shock absorber, the bottom of the output end of the shock absorber is fixedly installed with a spring support strip, and the center of the bottom of the spring support strip is fixedly connected with the top end of the column. The shock absorber is used for reducing the vibration of the spring support strip caused by external force. The outer end surface of the sliding block is provided with a locking unit between the sliding block and the first inner block; The locking unit comprises a first hollow rod fixedly installed on the outer end surface of the sliding block, and symmetrical hollow pipes are fixedly installed at both ends of the first hollow rod, the inside of the hollow pipe is provided with a bearing block, and the inside of the first hollow rod is communicated with the inside of the first hollow rod. The inside of the first hollow rod is provided with a pocket frame, the bottom of the pocket frame is fixedly connected with a bottom inclined rod, and the pocket frame and the bottom inclined rod are slidably fitted in the inside of the first hollow rod. The bottom inclined rod is in extrusion with the second inner block, and is used for limiting the second inner block. The inner wall of the first hollow rod is slidably fitted with a sealing plate, the sealing plate is used for isolating the bearing block, one end of the sealing plate away from the bearing block is fixedly connected with a connecting strip, and the center of the connecting strip is sleeved with a column. The top of the first hollow rod is fixedly installed with a support frame, the outer side of the support frame is fixedly installed with a shock absorber, the bottom of the output end of the shock absorber is fixedly installed with a spring support strip, and the center of the bottom of the spring support strip is fixedly connected with the top end of the column. The shock absorber is used for reducing the vibration of the spring support strip caused by external force. The outer end surface of the sliding block is provided with a locking unit between the sliding block and the first inner block; The locking unit comprises a first hollow rod fixedly installed on the outer end surface of the sliding block, and symmetrical hollow pipes are fixedly installed at both ends of the first hollow rod, the inside of the hollow pipe is provided with a bearing block, and the inside of the first hollow rod is communicated with the inside of the first hollow rod. The inside of the first hollow rod is provided with a pocket frame, the bottom of the pocket frame is fixedly connected with a bottom inclined rod, and the pocket frame and the bottom inclined rod are slidably fitted in the inside of the first hollow rod. The bottom inclined rod is in extrusion with the second inner block, and is used for limiting the second inner block. The inner wall of the first hollow rod is slidably fitted with a sealing plate, the sealing plate is used for isolating the bearing block, one end of the sealing plate away from the bearing block is fixedly connected with a connecting strip, and the center of the connecting strip is sleeved with a column. The top of the first hollow rod is fixedly installed with a support frame, the outer side of the support frame is fixedly installed with a shock absorber, the bottom of the output end of the shock absorber is fixedly installed with a spring support strip, and the center of the bottom of the spring support strip is fixedly connected with the top end of the column. The shock absorber is used for reducing the vibration of the spring support strip caused by external force. The outer end surface of the sliding block is provided with a locking unit between the sliding block and the first inner block; The locking unit comprises a first hollow rod fixedly installed on the outer end surface of the sliding block, and symmetrical hollow pipes are fixedly installed at both ends of the first hollow rod, the inside of the hollow pipe is provided with a bearing block, and the inside of the first hollow rod is communicated with the inside of the first hollow rod. The inside of the first hollow rod is provided with a pocket frame, the bottom of the pocket frame is fixedly connected with a bottom inclined rod, and the pocket frame and the bottom inclined rod are slidably fitted in the inside of the first hollow rod. The bottom inclined rod is in extrusion with the second inner block, and is used for limiting the second inner block. The inner wall of the first hollow rod is slidably fitted with a sealing plate, the sealing plate is used for isolating the bearing block, one end of the sealing plate away from the bearing block is fixedly connected with a connecting strip, and the center of the connecting strip is sleeved with a column. The top of the first hollow rod is fixedly installed with a support frame, the outer side of the support frame is fixedly installed with a shock absorber, the bottom of the output end of the shock absorber is fixedly installed with a spring support strip, and the center of the bottom of the spring support strip is fixedly connected with the top end of the column. The shock absorber is used for reducing the vibration of the spring support strip caused by external force. The outer end surface of the sliding block is provided with a locking unit between the sliding block and the first inner block; The locking unit comprises a first hollow rod fixedly installed on the outer end surface of the sliding block, and symmetrical hollow pipes are fixedly installed at both ends of the first hollow rod

Images