Protective worm gear lead screw elevator
By setting up plastic telescopic hoses at the upper and lower ends of the trapezoidal screw of the worm gear screw lift, and adding the cooperation between the guide rod and the guide sleeve at both ends of the hoisting platform, the problem of shaking during the fixing device of the worm gear screw lift is solved, the protection ability and service life are improved, and dustproof effect is provided.
Patent Information
- Application Number
- CN202422334931.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-09-24
AI Technical Summary
The existing worm gear screw lifts are prone to shaking when fixing devices, resulting in weakening of fixing effects, increasing wear of the screw and affecting service life.
A protective worm gear screw lift is designed. By installing plastic telescopic hoses on the upper and lower ends of the trapezoidal screw, and adding the cooperation between the guide rod and the guide sleeve at both ends of the hoisting platform, it provides accurate positioning and guidance functions, and can withstand certain lateral pressure, improve protection capabilities, and play a dust-proof role.
It effectively improves the protection ability of the worm gear screw lift to trapezoidal screw, reduces shaking at fixed contacts, extends service life, and provides dust protection effect.
Smart Images
Figure CN222974796U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of worm gear screw lifters, in particular to a protective worm gear screw lifter. Background Art
[0002] Worm gear screw lifts are widely used in machinery, metallurgy, construction, water conservancy equipment and other industries. They have many functions such as lifting, lowering, pushing with the help of accessories, flipping and various height position adjustments. Worm gear screw lifts are a basic lifting component with compact structure, small size, light weight, wide power source, no noise, easy installation, flexible use, multiple functions, multiple supporting forms, high reliability, long service life and many other advantages. They can be used alone or in combination, and can accurately control and adjust the lifting or pushing height according to a certain procedure. Worm gear screw lifts can be directly driven by an electric motor or other power, or manually.
[0003] It has different structural forms and assembly forms, and the lifting height can be customized according to user requirements, and it can be self-locking. When using a worm gear screw lift for lifting, the device to be lifted needs to be fixed on the screw of the worm gear screw lift, and the existing worm gear screw lifts are mostly fixed directly with bolts, which can easily cause the fixed contact area of the lift to shake, weakening the fixing effect of the worm gear screw lift on other devices, increasing the wear on the screw, and affecting the service life of the worm gear screw lift. Utility Model Content
[0004] The utility model provides a protective worm screw lifter to solve the problems in the background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a protective worm screw lift, comprising a fixed seat frame, a box body is installed in the middle of the fixed seat frame, and a cover plate is installed on the top of the box body, a trapezoidal screw rod is arranged in the box body, and the upper and lower ends of the trapezoidal screw rod extend outward from the bottom of the box body and the top of the cover plate respectively, a gear sleeve is installed on the nut of the trapezoidal screw rod, and a driven worm wheel is installed on the gear sleeve, and an active worm is installed in the box body through a bearing, and the active worm is meshed with the driven worm wheel The bottom end of the trapezoidal screw is installed with a lower end cover through a bearing, and a lower plastic telescopic hose is installed on the lower end cover, and the lower plastic telescopic hose is sleeved on the lower end of the trapezoidal screw, and the top end of the trapezoidal screw is installed with an upper end cover through a bearing, and an upper plastic telescopic hose is installed on the upper end cover, and the upper plastic telescopic hose is sleeved on the upper end of the trapezoidal screw, guide sleeves are embedded at both ends of the fixed seat frame, and a guide rod is slidably connected in the guide sleeve, a lifting platform is installed on the top of the guide rod, and the lifting platform is fixedly connected to the upper end cover.
[0006] Further, the upper and lower ends of the gear sleeve are mounted on the box body and the cover plate through bearings, and the input shaft of the driving worm extends outwards from the box body.
[0007] Further, a first snap ring is provided at the bottom of the fixed seat frame, and the lower end of the trapezoidal lead screw extends outwards from the first snap ring.
[0008] Further, the first snap ring is in clearance fit with the lower end of the trapezoidal lead screw, and one end of the lower plastic telescopic hose is clamped on the first snap ring.
[0009] Further, a second snap ring is provided at the top of the fixed seat frame, and the upper end of the trapezoidal lead screw extends outwards from the second snap ring.
[0010] Further, the second snap ring is in clearance fit with the upper end of the trapezoidal lead screw, and one end of the upper plastic telescopic hose is clamped on the second snap ring.
[0011] Compared with the prior art, the present utility model provides a protective worm and lead screw lift, which has the following beneficial effects:
[0012] For this protective worm and lead screw lift, after the lifting platform is connected to the top end of the trapezoidal lead screw through the upper end cover, guide rods are added at both ends of the lifting platform. Through the cooperation of the guide rods and the guide sleeves, precise positioning and guiding functions are provided, and at the same time, it can withstand a certain lateral pressure, thereby improving the protection ability for the trapezoidal lead screw. At the same time, plastic telescopic hoses are provided at the upper and lower ends of the trapezoidal lead screw, which can play a role in dust protection. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 is a schematic structural diagram of the present utility model;
[0014] Figure 2 is a cross-sectional view of the present utility model;
[0015] Figure 3 is a side view of the present utility model.
[0016] In the figure: 1, fixed seat frame; 2, box body; 3, cover plate; 4, trapezoidal lead screw; 5, gear sleeve; 6, driven worm gear; 7, driving worm; 8, lower end cover; 9, lower plastic telescopic hose; 10, upper end cover; 11, upper plastic telescopic hose; 12, guide sleeve; 13, guide rod; 14, lifting platform; 15, first snap ring; 16, second snap ring. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0017] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0018] Please refer to Figures 1 - 3 , the present utility model discloses a protective worm screw lift, which includes a fixed seat frame 1. A box body 2 is installed in the middle of the fixed seat frame 1, and a cover plate 3 is installed on the top of the box body 2. A trapezoidal screw rod 4 is arranged in the box body 2, and the upper and lower ends of the trapezoidal screw rod 4 respectively extend outwards from the bottom of the box body 2 and the top of the cover plate 3. A gear sleeve 5 is installed on the nut of the trapezoidal screw rod 4, and a driven worm wheel 6 is installed on the gear sleeve 5. A driving worm 7 is installed in the box body 2 through bearings, and the driving worm 7 is meshed with the driven worm wheel 6. The bottom end of the trapezoidal screw rod 4 is installed with a lower end cover 8 through a bearing, and a lower plastic telescopic hose 9 is installed on the lower end cover 8. The lower plastic telescopic hose 9 is sleeved on the lower end of the trapezoidal screw rod 4. The top end of the trapezoidal screw rod 4 is installed with an upper end cover 10 through a bearing, and an upper plastic telescopic hose 11 is installed on the upper end cover 10. The upper plastic telescopic hose 11 is sleeved on the upper end of the trapezoidal screw rod 4. Guide sleeves 12 are embedded at both ends of the fixed seat frame 1, and guide rods 13 are slidably connected in the guide sleeves 12. After the lifting platform 14 is connected to the top end of the trapezoidal screw rod 4 through the upper end cover 10, guide rods 13 are added at both ends of the lifting platform 14. Through the cooperation of the guide rods 13 and the guide sleeves 12, precise positioning and guiding functions are provided, and at the same time, a certain lateral pressure can be borne, thereby improving the protection ability for the trapezoidal screw rod 4. At the same time, plastic telescopic hoses are arranged at the upper and lower ends of the trapezoidal screw rod 4, which can play a role in dust protection. The top of the guide rod 13 is installed with a lifting platform 14, and the lifting platform 14 is fixedly connected to the upper end cover 10.
[0019] Specifically, the upper and lower ends of the gear sleeve 5 are installed on the box body 2 and the cover plate 3 through bearings, and the input shaft of the driving worm 7 extends outwards from the box body 2.
[0020] In this implementation scheme, the gear sleeve 5 is a connecting structure for connecting the driven worm wheel 6 and the nut on the trapezoidal screw rod 4. By rotating the driving worm 7, the driven worm wheel 6 is driven to rotate. Thus, under the thread fit of the nut and the screw rod, the rotational motion is converted into a linear motion, driving the screw rod to move up and down.
[0021] Specifically, a first clamping ring 15 is provided at the bottom of the fixed seat frame 1, and the lower end of the trapezoidal screw rod 4 extends outwards from the first clamping ring 15.
[0022] In this embodiment, the first snap ring 15 is a connecting structure for installing the lower plastic telescopic hose 9.
[0023] Specifically, the first snap ring 15 is in clearance fit with the lower end of the trapezoidal lead screw 4, and one end of the lower plastic telescopic hose 9 is clamped on the first snap ring 15.
[0024] In this embodiment, the lower plastic telescopic hose 9 has elasticity and can move up and down together with the lower end of the trapezoidal lead screw 4, while playing a dust-proof role.
[0025] Specifically, a second snap ring 16 is provided at the top of the fixed seat frame 1, and the upper end of the trapezoidal lead screw 4 extends outwards from the second snap ring 16.
[0026] In this embodiment, the second snap ring 16 is a connecting structure for installing the upper plastic telescopic hose 11.
[0027] Specifically, the second snap ring 16 is in clearance fit with the upper end of the trapezoidal lead screw 4, and one end of the upper plastic telescopic hose 11 is clamped on the second snap ring 16.
[0028] In this embodiment, the upper plastic telescopic hose 11 has elasticity and can move up and down together with the upper end of the trapezoidal lead screw 4, while playing a dust-proof role.
[0029] During use, after the lifting platform 14 is connected to the top end of the trapezoidal lead screw 4 through the upper end cover 10, guide rods 13 are added at both ends of the lifting platform 14. Through the cooperation of the guide rods 13 and the guide sleeves 12, precise positioning and guiding functions are provided, and at the same time, a certain lateral pressure can be borne, thereby improving the protection ability for the trapezoidal lead screw 4. At the same time, plastic telescopic hoses are provided at the upper and lower ends of the trapezoidal lead screw 4, which can play a dust-proof protection role.
[0030] In summary, for this protective worm gear screw jack, after the lifting platform 14 is connected to the top end of the trapezoidal lead screw 4 through the upper end cover 10, guide rods 13 are added at both ends of the lifting platform 14. Through the cooperation of the guide rods 13 and the guide sleeves 12, precise positioning and guiding functions are provided, and at the same time, a certain lateral pressure can be borne, thereby improving the protection ability for the trapezoidal lead screw 4. At the same time, plastic telescopic hoses are provided at the upper and lower ends of the trapezoidal lead screw 4, which can play a dust-proof protection role.
[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A protective worm screw lift, comprising a fixed frame (1), characterized in that: A box body (2) is installed in the middle of the fixed seat frame (1), and a cover plate (3) is installed on the top of the box body (2). A trapezoidal screw rod (4) is arranged in the box body (2), and the upper and lower ends of the trapezoidal screw rod (4) extend outward from the bottom of the box body (2) and the top of the cover plate (3) respectively. A gear sleeve (5) is installed on the nut of the trapezoidal screw rod (4), and a driven worm wheel (6) is installed on the gear sleeve (5). An active worm gear (7) is installed in the box body (2) through a bearing, and the active worm gear (7) is meshedly connected with the driven worm wheel (6). A lower end cover (8) is installed at the bottom end of the trapezoidal screw rod (4) through a bearing, and the lower end cover (8) is installed at the bottom end of the trapezoidal screw rod (4). A lower plastic telescopic hose (9) is installed on the end cover (8), and the lower plastic telescopic hose (9) is sleeved on the lower end of the trapezoidal screw (4). An upper end cover (10) is installed on the top of the trapezoidal screw (4) through a bearing, and an upper plastic telescopic hose (11) is installed on the upper end cover (10), and the upper plastic telescopic hose (11) is sleeved on the upper end of the trapezoidal screw (4). Guide sleeves (12) are embedded at both ends of the fixed seat frame (1), and a guide rod (13) is slidably connected in the guide sleeve (12). A lifting platform (14) is installed on the top of the guide rod (13), and the lifting platform (14) is fixedly connected to the upper end cover (10).
2. A protective worm gear screw lift according to claim 1, characterized in that: The upper and lower ends of the gear sleeve (5) are mounted on the housing (2) and the cover plate (3) via bearings, and the input shaft of the active worm (7) protrudes outward from the housing (2).
3. A protective worm gear screw lift according to claim 1, characterized in that: A first clamping ring (15) is provided at the bottom of the fixed seat frame (1), and the lower end of the trapezoidal screw rod (4) protrudes outward from the first clamping ring (15).
4. A protective worm gear screw lift according to claim 3, characterized in that: The first clamping ring (15) is loosely matched with the lower end of the trapezoidal screw rod (4), and one end of the lower plastic telescopic hose (9) is clamped on the first clamping ring (15).
5. A protective worm gear screw lift according to claim 1, characterized in that: A second clamping ring (16) is provided on the top of the fixed seat frame (1), and the upper end of the trapezoidal screw rod (4) protrudes outward from the second clamping ring (16).
6. A protective worm gear screw lift according to claim 5, characterized in that: The second clamping ring (16) is loosely matched with the upper end of the trapezoidal screw rod (4), and one end of the upper plastic telescopic hose (11) is clamped on the second clamping ring (16).