Lifting motor

By introducing a damping telescopic rod and a locking slot and locking block into the lifting motor, the problems of unstable sleeve guidance and slippage are solved, achieving stable movement and safe locking of the sleeve, thus improving the safety of using the small treadmill.

CN224054029UActive Publication Date: 2026-03-27LUAN BAIXIN MACHINERY TECHNOLOGY CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-27
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

The existing lifting motor sleeve lacks a guide rod for fixation, making it difficult to move at a uniform speed. After prolonged use, it is prone to stripping and damage, causing the sleeve to slip off and the ramp to fall rapidly, increasing the risk to users.

Method used

The design employs a damping telescopic rod, a snap-fit ​​groove, and a snap-fit ​​block to provide stable guidance. A color sensor monitors the sleeve speed and triggers the snap-fit ​​locking mechanism in a timely manner to prevent the sleeve from slipping.

Benefits of technology

This ensures smooth movement of the casing, slows its descent, improves system stability and safety, reduces the risk of damage, and provides additional safety assurance.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224054029U_ABST
    Figure CN224054029U_ABST
Patent Text Reader

Abstract

The utility model discloses a lifting motor, and relates to the technical field of motors. The device comprises a first shell and a protection mechanism, wherein the protection mechanism comprises a sleeve. By arranging the damping telescopic rod, the clamping groove and the clamping block, a stable guiding function is provided for the sleeve, it is ensured that the sleeve can stably move along a correct path under driving of the screw, in addition, when the sleeve is accidentally impacted or starts to slip, the damping telescopic rod can absorb part of impact energy, the falling speed of the sleeve is reduced, and the service life of the sleeve is prolonged. The stability and safety of the whole lifting system are improved, when the sleeve slides down abnormally, the push rod can be rapidly driven to enable the clamping block to be clamped into the clamping groove, so that the sleeve is effectively prevented from sliding down continuously, the color sensor is arranged near the sleeve to monitor the moving speed of the red coating in real time, and when the sliding speed of the sleeve is too high, the color sensor can be used for detecting whether the sleeve slides down or not. The color sensor immediately detects the rapid movement of the red coating and triggers an alarm or control signal.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model relates to motor technical field, concretely is a lifting motor. BACKGROUND

[0002] The slope of the treadmill needs to be adjusted according to the needs of the user during use, and the existing motor for adjusting the slope of the treadmill is large in size and can only be used in large or medium-sized treadmills. Therefore, small household treadmills cannot be installed and used due to their small installation space.

[0003] After searching, the patent with the patent number CN221728077U discloses a lifting motor comprising a first housing and a second housing. The first housing comprises a driving shell and a transmission shell. The second housing is detachably installed on the connecting plate in the driving shell. The top of the installation groove in the transmission shell is provided with a cover body, and the bottom of the transmission shell is provided with a sleeve. The first housing is longitudinally movable and is arranged at the upper part of the sleeve. A driving assembly is arranged between the installation cavity in the driving shell and the installation cavity in the second housing. A power transmission structure is rotatably arranged in the installation groove in the transmission shell. The driving force generated by the driving assembly is transmitted to the sleeve through the power transmission structure, thereby controlling the vertical movement of the first housing along the longitudinal position at the upper part of the sleeve. The utility model sets driving assembly and power transmission structure, thereby reducing the overall size of the lifting motor and facilitating the installation and use of small treadmills.

[0004] The above-mentioned patent has the following disadvantages: the sleeve moves up and down by rotating the screw rod to adjust the slope of the treadmill. However, the sleeve lacks a guide rod fixing, and it is easy to rotate synchronously with the screw rod when the screw rod rotates, making it difficult to move at a constant speed. Moreover, after long-term use, the internal threads are easily damaged due to the large pressure required to support the slope of the treadmill, which can cause the sleeve to slip off, resulting in rapid falling of the slope and increasing the risk of user use. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model aims to provide a lifting motor to solve the technical problem of the sleeve lacking a guide rod fixing, which makes it difficult to move at a constant speed and the internal threads are easily damaged after long-term use, which can cause the sleeve to slip off, the slope to fall rapidly, and the risk of user use to increase.

[0006] To achieve the above object, the utility model provides the following technical scheme: a lifting motor, including first shell and protection mechanism, the protection mechanism includes sleeve, the inside installation groove of sleeve is provided with damping telescopic link, one end of damping telescopic link is provided with fixed block, the outer surface of sleeve is provided with clamping groove, the below of clamping groove is provided with red coating, both sides of sleeve are provided with fixed plate, one side of fixed plate is provided with push rod, one end of push rod is provided with clamping block, the inside of one of fixed plate is provided with color sensor.

[0007] By adopting the above technical scheme, the fixed plate is arranged on both sides of the sleeve, which provides a stable support platform for the push rod, facilitating the clamping and unclamping of the clamping block and the clamping groove.

[0008] Further, the damping telescopic link is provided with four, and the four damping telescopic links are uniformly arranged in a circumferential array.

[0009] By adopting the above technical scheme, the four damping telescopic links are uniformly arranged in a circumferential array, so that the sleeve can provide stable support force from four directions when subjected to external force, and when the sleeve is subjected to accidental impact or starts to slip, the damping telescopic link can absorb part of the impact energy and slow down the falling speed of the sleeve.

[0010] Further, the clamping groove is provided with a plurality of clamping grooves, and the plurality of clamping grooves are uniformly arranged in a linear array.

[0011] By adopting the above technical scheme, the plurality of clamping grooves are uniformly arranged at equal intervals, so that the sleeve can be stably clamped with the clamping block at multiple positions.

[0012] Further, the clamping block is arranged in a circular arc shape, and the clamping block is matched with the clamping groove.

[0013] By adopting the above technical scheme, the circular arc shape of the clamping block makes the contact area larger and the contact more close, thereby enhancing the friction between the clamping block and the clamping groove and making the clamping more stable and not easy to fall off.

[0014] Further, the first shell is provided with a fixed frame on one side, and the fixed frame is provided with a second shell on one side.

[0015] By adopting the above technical scheme, the fixed frame serves as a bridge connecting the first shell and the second shell, and provides stable support for the entire lifting motor.

[0016] Further, the second shell is provided with a stator inside, the stator is rotatably connected with a rotor inside, and the rotor is provided with a worm inside.

[0017] By adopting the technical scheme, the stator is fixed in the second shell, and the rotor rotates inside the stator.

[0018] Further, the worm is engaged with a worm wheel, the worm wheel is connected with a screw rod through a connecting block, and the screw rod is rotationally connected with the sleeve through threads.

[0019] By adopting the technical scheme, the engagement design of the worm and the worm wheel realizes effective transmission of the rotating force.

[0020] Further, one end of the screw rod is provided with a rotating shaft, and the screw rod is provided with a connecting ring.

[0021] By adopting the technical scheme, the rotating shaft serves as a support point of the screw rod, and the stability of the screw rod during rotation can be enhanced.

[0022] In summary, the utility model mainly has the following beneficial effects:

[0023] 1. The damping telescopic rod, the clamping groove and the clamping block are arranged, the sleeve is provided with stable guiding effect, the sleeve can move along the correct path stably under the driving of the screw rod, in addition, when the sleeve is impacted accidentally or starts to slide off, the damping telescopic rod can absorb part of impact energy and slow down the falling speed of the sleeve, so that the damage risk caused by rapid falling is reduced, the stability and safety of the whole lifting system are improved, the clamping groove is arranged on the outer surface of the sleeve, the clamping block is connected with the push rod, under normal circumstances, the clamping block does not contact the clamping groove, but when the sleeve abnormally slides down, the push rod can be rapidly driven to make the clamping block clamped in the clamping groove, so that the continuous sliding down of the sleeve is effectively prevented, and the mechanical locking mechanism provides additional safety protection for the system.

[0024] 2. The color sensor, the red coating and the push rod are arranged, the color sensor is arranged near the sleeve, the moving speed of the red coating is monitored in real time, the red coating is coated on the outer surface of the sleeve and moves along with the movement of the sleeve, when the sleeve slides down too fast, the color sensor can immediately detect the rapid movement of the red coating and trigger an alarm or a control signal, the push rod can be rapidly driven to push the clamping block into the clamping groove, so that the sleeve can be locked in the initial stage of sliding down. DRAWINGS

[0025] Figure 1 It is a schematic view of the three-dimensional structure of the utility model;

[0026] Figure 2 It is a schematic view of the partial sectional structure of the utility model;

[0027] Figure 3 It is a schematic view of the protection mechanism of the utility model;

[0028] Figure 4 The structure diagram of the red coating of the utility model.

[0029] In the figure: 1, first shell; 2, fixed frame; 3, second shell; 4, stator; 5, rotor; 6, worm; 7, worm wheel; 8, rotating shaft; 9, connecting block; 10, screw; 11, connecting ring; 12, protection mechanism; 1201, sleeve; 1202, damping telescopic rod; 1203, fixed block; 1204, clamping groove; 1205, fixed plate; 1206, push rod; 1207, clamping block; 1208, color sensor; 1209, red coating. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are used only for explaining the utility model and cannot be understood as limiting the utility model.

[0031] A lifting motor, as shown in Figures 1-4 , comprising a first shell 1 and a protection mechanism 12, the protection mechanism 12 comprises a sleeve 1201, a damping telescopic rod 1202 is arranged in the inside mounting groove of the sleeve 1201, one end of the damping telescopic rod 1202 is provided with a fixed block 1203, a clamping groove 1204 is formed on the outer surface of the sleeve 1201, a red coating 1209 is arranged below the clamping groove 1204, two fixed plates 1205 are arranged on the two sides of the sleeve 1201, a push rod 1206 is arranged on one side of the fixed plate 1205, one end of the push rod 1206 is provided with a clamping block 1207, a color sensor 1208 is arranged on the inner side of one of the fixed plates 1205, and the fixed plate 1205 is arranged on the two sides of the sleeve 1201, so as to provide a stable support platform for the push rod 1206, facilitate the clamping and unclamping of the clamping block 1207 and the clamping groove 1204, and the color sensor 1208 is arranged near the sleeve 1201 to monitor the moving speed of the red coating 1209 in real time.

[0032] Referring to Figure 3 , the damping telescopic rod 1202 is arranged in four, and the four damping telescopic rods 1202 are arranged in a circumferential array at equal intervals, so that the sleeve 1201 can provide stable support force from four directions at the same time when subjected to external force.

[0033] Referring to Figure 3 , Figure 4The sleeve 1201 is provided with several locking grooves 1204, which are arranged in a linear array at equal intervals. The equal intervals of the locking grooves 1204 enable the sleeve 1201 to be securely locked with the locking block 1207 at multiple positions. The equal intervals of the locking grooves 1204 also help to form a uniform stress distribution on the sleeve 1201.

[0034] See Figure 3 , Figure 4 The snap-fit ​​block 1207 is arc-shaped and fits into the snap-fit ​​groove 1204. The arc shape of the snap-fit ​​block 1207 increases the contact area between it and the snap-fit ​​groove 1204, making the contact tighter and enhancing the friction between the snap-fit ​​block 1207 and the snap-fit ​​groove 1204. This makes the snap-fit ​​more stable and less likely to fall off. The arc shape of the snap-fit ​​block 1207 also allows it to distribute stress more evenly during the snap-fit ​​process.

[0035] See Figure 1 A fixing frame 2 is provided on one side of the first outer shell 1, and a second outer shell 3 is provided on one side of the fixing frame 2. The fixing frame 2 serves as a bridge connecting the first outer shell 1 and the second outer shell 3, providing stable support for the entire lifting motor. The addition of the fixing frame 2 enhances the overall structural strength of the motor.

[0036] See Figure 2 The second housing 3 contains a stator 4, and a rotor 5 is rotatably connected inside the stator 4. A worm gear 6 is installed inside the rotor 5. By fixing the stator 4 inside the second housing 3, the rotor 5 rotates inside the stator 4. The stator 4 and the rotor 5 are the core components of the motor, and their electromagnetic interaction is the key to realizing the energy conversion of the motor.

[0037] See Figure 2 The worm 6 meshes with the worm wheel 7, and the worm wheel 7 is connected to the screw 10 through the connecting block 9. The screw 10 is rotatably connected to the sleeve 1201 through the thread. The meshing design of the worm 6 and the worm wheel 7 realizes the effective transmission of rotational force. The meshing of the worm 6 and the worm wheel 7 has a self-locking characteristic, that is, when the worm 6 stops rotating, the worm wheel 7 will also stop rotating due to the meshing action.

[0038] See Figure 2 One end of the screw 10 is provided with a rotating shaft 8, and a connecting ring 11 is provided on the screw 10. The rotating shaft 8 serves as a support point for the screw 10, which can enhance the stability of the screw 10 during rotation. The connecting ring 11 serves as an additional structure on the screw 10, which can increase the overall strength and rigidity of the screw 10.

[0039] The utility model discloses an implementation principle is: first, stator 4 is fixed in second shell 3, and rotor 5 rotates in stator, and rotation is produced through electromagnetic action, and rotor 5 is provided with worm 6 inside, and worm 6 is engaged with worm wheel 7, and rotation is transmitted to worm wheel 7, and worm wheel 7 is connected with screw rod 10 through connecting block 9, and drives screw rod 10 to rotate, and screw rod 10 is rotatably connected with sleeve pipe 1201 through thread, when screw rod 10 rotates, can drive sleeve pipe 1201 move along the axial movement of screw rod 10, and the damping telescopic rod 1202 that is fixed simultaneously provides the guiding effect for sleeve pipe 1201 movement, simultaneously when sleeve pipe 1201 slips, slows down the falling speed of sleeve pipe 1201, and simultaneously color sensor 1208 detects red coating 1209 moving speed, when moving speed is too fast, and color sensor 1208 controls push rod 1206 to extend through the external control console control signal time, makes the clamping block 1207 clamp sleeve pipe 1201 and slip into the clamping groove 1204, and prevent sleeve pipe 1201 from continuing to fall.

[0040] The parts not involved in the utility model are the same as the prior art or can be realized by using the prior art, and will not be described in detail here.

[0041] Although the embodiments of the utility model have been shown and described, the specific embodiments are only the explanation of the utility model, and are not the limitation of the utility model, and the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable way, and the person skilled in the art can make the modification, replacement and change without creative contribution after reading the specification without departing from the principles and purposes of the utility model, and the utility model is protected by the patent law as long as in the claim range of the utility model.

Claims

1. A lifting motor, characterized by: Including first shell (1) and protection mechanism (12), the protection mechanism (12) includes sleeve (1201), the inside mounting groove of sleeve (1201) is provided with damping telescopic rod (1202), one end of damping telescopic rod (1202) is provided with fixed block (1203), the outer surface of sleeve (1201) is provided with clamping groove (1204), the lower part of clamping groove (1204) is provided with red coating (1209), both sides of sleeve (1201) are provided with fixed plate (1205), one side of fixed plate (1205) is provided with push rod (1206), one end of push rod (1206) is provided with clamping block (1207), the inside of one of fixed plate (1205) is provided with color sensor (1208).

2. A lifting motor according to claim 1, characterized in that: The damping telescopic rod (1202) is provided with four, four damping telescopic rods (1202) are uniformly arranged in a circumferential array.

3. A lift motor according to claim 1, wherein: The clamping groove (1204) is provided with a plurality of, a plurality of clamping grooves (1204) are uniformly arranged in a linear array.

4. The lift motor of claim 1, wherein: The clamping block (1207) is arranged in a circular arc shape, and the clamping block (1207) is matched with the clamping groove (1204).

5. A lifting motor according to claim 4, characterised in that: One side of the first shell (1) is provided with a fixed frame (2), and one side of the fixed frame (2) is provided with a second shell (3).

6. A lifting motor according to claim 5, characterised in that: The inside of the second shell (3) is provided with a stator (4), the inside of the stator (4) is rotatably connected with a rotor (5), the inside of the rotor (5) is provided with a worm (6).

7. A lifting motor according to claim 6, characterised in that: The worm (6) is engaged with a worm wheel (7), the worm wheel (7) is connected with a screw rod (10) through a connecting block (9), and the screw rod (10) is rotatably connected with the sleeve (1201) through threads.

8. A lifting motor according to claim 7, characterised in that: One end of the screw rod (10) is provided with a rotating shaft (8), and the screw rod (10) is provided with a connecting ring (11).

Citation Information

Patent Citations

  • Lifting motor

    CN221728077U