A manually operated lift adjustment device
By introducing a limit structure and guide rod into the manual lifting adjustment device, the lifting platform is ensured to rise and fall to a fixed position each time, which solves the problem of inaccurate adjustment of existing devices, improves adjustment accuracy, and is suitable for high-precision equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN XINXINTENG TECH CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-05-29
Smart Images
Figure CN224298813U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical structure technology, specifically to a manual lifting and adjusting device. Background Technology
[0002] Lifting and adjusting devices are common structures on various types of mechanical equipment. Based on their adjustment methods, they can be divided into automatic and manual lifting and adjusting devices. Currently, most common manual lifting and adjusting devices are simple screw-slider structures, where rotating the screw drives the slider to move, thereby achieving lifting and adjusting.
[0003] Existing manual lifting adjustment devices lack a limiting mechanism after adjustment. Due to the clearance between the lead screw and the slider, which can widen over time, it's impossible to ensure consistent lifting height with each adjustment. For equipment requiring high precision, such as HUD high-temperature testing equipment, the existing manual lifting adjustment device is insufficient. This requires the product to be raised to a fixed height each time to ensure the HUD image is projected onto the test position for optimal testing. Therefore, it is necessary to improve the existing manual lifting adjustment device. Utility Model Content
[0004] To address some or all of the problems existing in the prior art, this utility model provides a manual lifting and adjusting device, including a fixed frame and a cross-shaped telescopic frame. The fixed frame is equipped with a rotatable adjusting screw, and a transverse slider is sleeved on the adjusting screw. One end of the cross-shaped telescopic frame is hinged to the fixed frame, and the other end is hinged to the transverse slider. A lifting platform is provided at the output end of the cross-shaped telescopic frame, and a product clamp is mounted on the lifting platform. The adjusting screw can drive the transverse slider to move, causing the cross-shaped telescopic frame to open or close, thereby driving the lifting platform to move up and down. The fixed frame is equipped with a first limiting structure and a second limiting structure, which can be connected to the lifting platform respectively. When the lifting platform rises to its limit position, the first limiting structure can engage and fix with the lifting platform. When the lifting platform descends to its limit position, the second limiting structure can abut against the lower end face of the lifting platform.
[0005] As a further improvement of this utility model, the fixed frame is provided with a plurality of lifting guide rods, and the lifting platform is provided with lifting guide sleeves at corresponding positions to the lifting guide rods. The lifting guide rods pass through the corresponding lifting guide sleeves, and the lifting guide rods are slidably connected to the lifting guide sleeves.
[0006] As a further improvement of this utility model, the first limiting structure includes a mounting block, which is connected to the end of the lifting guide rod away from the fixed frame. The mounting block is provided with a locking buckle, which can be engaged and fixed with the lifting platform.
[0007] As a further improvement of this utility model, the locking buckle includes a base, a handle, a latch, and a linkage. The base is connected to the mounting block, the handle and the latch are respectively hinged to the base, the two ends of the linkage are respectively hinged to the handle and the latch, the latch is provided with a locking rod, and the handle can drive the linkage to swing, thereby driving the latch and the locking rod to rotate and swing.
[0008] As a further improvement of this utility model, a rubber block is provided at the end of the locking rod away from the buckle.
[0009] As a further improvement of this utility model, there are four lifting guide rods, and the four lifting guide rods are distributed in a rectangular shape on the fixed frame.
[0010] As a further improvement of this utility model, the second limiting structure includes two limiting blocks disposed on the fixed frame, the limiting blocks being able to abut against the lower end surface of the lifting platform.
[0011] As a further improvement of this utility model, an adjusting handwheel is provided at one end of the adjusting screw.
[0012] As a further improvement of this utility model, a locking screw is provided on the fixed frame at a position corresponding to the adjusting screw. The locking screw is adjustablely limited to the fixed frame, and one end of the locking screw can abut against the adjusting screw.
[0013] As a further improvement of this utility model, the product clamp is detachably connected to the lifting platform, and the product clamp is provided with a handle.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] This utility model, by providing a first limiting structure and a second limiting structure on the fixed frame, can limit the extreme positions of the lifting platform's rise and fall, thereby ensuring that the lifting platform can rise and fall to a fixed position each time, improving the accuracy of lifting adjustment, and meeting the needs of high-precision processing equipment. Attached Figure Description
[0016] To more clearly illustrate the solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the structure of this utility model embodiment when it is reduced to its limit state;
[0018] Figure 2 This is a schematic diagram of the structure of this utility model embodiment at its limit state;
[0019] Figure 3 This is a schematic diagram of the locking buckle in an embodiment of this utility model. Detailed Implementation
[0020] Unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used in the specification is for the purpose of describing particular embodiments only and is not intended to limit the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order.
[0021] In this invention, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment to other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this invention can be combined with other embodiments.
[0022] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
[0023] like Figure 1-3As shown, a manual lifting and adjusting device includes a fixed frame 1 and a cross-shaped telescopic frame 2. A rotatable adjusting screw 3 is mounted on the fixed frame 1, and a transverse slider 4 is sleeved on the adjusting screw 3. One end of the cross-shaped telescopic frame 2 is hinged to the fixed frame 1, and the other end is hinged to the transverse slider 4. A lifting platform 5 is mounted on the output end of the cross-shaped telescopic frame 2, and a product clamp 6 is mounted on the lifting platform 5. When adjustment is needed, rotating the adjusting screw 3 drives the transverse slider 4 to move, thereby driving the cross-shaped telescopic frame 2 to open or close. Specifically, opening the cross-shaped telescopic frame 2 drives the lifting platform 5 and the product clamp 6 to rise; closing the cross-shaped telescopic frame 2 drives the lifting platform 5 and the product clamp 6 to fall, thus achieving the purpose of driving the product clamp 6 to move up and down.
[0024] The cross telescopic frame 2 can adopt any existing telescopic cross structure device, and its specific structure will not be described in detail in this article.
[0025] The fixed frame 1 is equipped with a first limiting structure and a second limiting structure, which can be connected to the lifting platform 5 respectively. Specifically, when the lifting platform 5 rises to its limit position, the first limiting structure can engage and fix with the lifting platform 5, thereby limiting the limit position of the lifting platform 5's rise and ensuring that the lifting platform 5 can rise to the same position each time; when the lifting platform 5 descends to its limit position, the second limiting structure can abut against the lower end surface of the lifting platform 5, supporting the lifting platform 5 and thus limiting the limit position of the lifting platform 5's descent, ensuring that the lifting platform 5 can descend to the same position each time.
[0026] The manual lifting adjustment device can limit the extreme positions of the lifting platform 5 in terms of rising and falling through the first and second limit structures, ensuring that the lifting platform 5 can rise and fall to a fixed position each time, thereby improving the accuracy of the lifting adjustment and enabling it to meet the needs of high-precision processing equipment.
[0027] For easy adjustment, an adjustment handwheel 7 is installed at one end of the adjustment screw 3. The user can drive the adjustment screw 3 to rotate by turning the adjustment handwheel 7, which in turn drives the lifting platform 5 to move up and down, thus realizing the function of lifting and adjusting.
[0028] A locking screw 8 is provided on the fixed frame 1 at a position corresponding to the adjusting screw 3. The locking screw 8 is adjustablely limited to the fixed frame 1, and one end of the locking screw 8 can abut against the adjusting screw 3. Under normal circumstances, the locking screw 8 is in the locked state, with one end of the locking screw 8 abutting against the adjusting screw 3, thereby limiting and fixing the adjusting screw 3 so that it cannot rotate, ensuring the structural stability of the manual lifting adjustment device and preventing accidental contact with the adjusting handwheel 7 during operation, which would affect the accuracy of the operation. When it is necessary to adjust the lifting platform 5, the locking screw 8 can be loosened first to disengage it from the adjusting screw 3. Then, the adjusting handwheel 7 can be rotated to drive the adjusting screw 3 to rotate, thereby driving the lifting platform 5 to move up and down.
[0029] To limit and guide the lifting stroke of the lifting platform 5, four lifting guide rods 9 are installed on the fixed frame 1, and the four lifting guide rods 9 are rectangularly distributed at the four corner positions of the fixed frame 1. Lifting guide sleeves 10 are respectively provided at corresponding positions on the lifting platform 5, with the lifting guide rods 9 passing through the corresponding lifting guide sleeves 10, and the lifting guide rods 9 and lifting guide sleeves 10 slidably connected. During manual rotation of the adjusting handwheel 7, the lifting platform 5 is driven to move up and down, causing the lifting guide sleeves 10 to slide on the lifting guide rods 9. The cooperation between the lifting guide sleeves 10 and the lifting guide rods 9 limits and guides the lifting direction of the lifting platform 5, improving the accuracy and stability of the adjustment.
[0030] In other embodiments, the number of lifting guide rods 9 can also be any other number, and this utility model does not limit this.
[0031] The first limiting structure includes a mounting block 11, which is fixedly connected to the end of the lifting guide rod 9 away from the fixed frame 1. The mounting block 11 is equipped with a locking buckle 12, which can be engaged and fixed with the lifting platform 5. Normally, the locking buckle 12 is in the open state. When the lifting platform 5 rises to its limit position, the operator can manually operate the locking buckle 12 to engage and fix it with the lifting platform 5. This locking buckle 12 limits and fixes the lifting platform 5 to the fixed frame 1, ensuring that the lifting platform 5 rises to a consistent height each time, thus ensuring a consistent height of the product fixture 6 and improving processing stability.
[0032] Specifically, the locking buckle 12 includes a base 121, a handle 122, a latch 123, and a linkage 124. The base 121 is fixedly connected to the mounting block 11. The handle 122 and the latch 123 are hinged to the base 121, respectively. Both ends of the linkage 124 are hinged to the handle 122 and the latch 123, respectively. A locking lever 125 is provided on the latch 123. The handle 122 can drive the linkage 124 to swing, thereby causing the latch 123 and the locking lever 125 to rotate and swing. In use, the user rotates the handle 122, which drives the linkage 124 to swing. The linkage 124 drives the latch 123 to rotate and swing, and the latch 123 drives the locking lever 125 to swing, thereby causing the locking lever 125 to abut or disengage from the lifting platform 5. The locking lever 125 can lock or release the lifting platform 5.
[0033] To reduce wear on the lifting platform 5 caused by the locking rod 125, a rubber block 126 is provided at the end of the locking rod 125 away from the latch rod 123. By providing the rubber block 126, the locking rod 125 and the lifting platform 5 can achieve soft contact, which can reduce wear on the lifting platform 5 caused by the locking rod 125 and increase the friction between the locking rod 125 and the lifting platform 5, prevent unnecessary displacement of the locking rod 125, and improve the stability of the structure.
[0034] The second limiting structure includes two limiting blocks 13 fixedly installed on the fixed frame 1. The two limiting blocks 13 are symmetrically distributed along the center line of the fixed frame 1, and the limiting blocks 13 can abut against the lower end face of the lifting platform 5. When the adjusting handwheel 7 drives the lifting platform 5 to descend, when the lifting platform 5 descends to its limit position, the lower end face of the lifting platform 5 will abut against the two limiting blocks 13. The two limiting blocks 13 are used to position the lower limit position of the lifting platform 5, thereby ensuring that the lifting platform 5 can descend to a uniform height each time.
[0035] In this embodiment, the product clamp 6 and the lifting platform 5 are detachably connected by screws, which facilitates the replacement of the product clamp 6 to meet the processing needs of different products. To facilitate the removal of the product clamp 6, a handle 14 is installed on the product clamp 6. When it is necessary to replace the product clamp 6, the connecting screws between the product clamp 6 and the lifting platform 5 can be loosened, and then the product clamp 6 can be removed from the lifting platform 5 by holding the handle 14.
[0036] The above-described specific embodiments are preferred embodiments of this utility model, and are not intended to limit the specific scope of this utility model. The scope of this utility model includes but is not limited to the specific embodiments described above. All equivalent changes made in accordance with this utility model are within the protection scope of this utility model.
Claims
1. A manual lifting and adjusting device, characterized in that: It includes a fixed frame and a cross telescopic frame. The fixed frame is equipped with a rotatable adjusting screw, and a transverse slider is sleeved on the adjusting screw. One end of the cross telescopic frame is hinged to the fixed frame, and the other end is hinged to the transverse slider. The output end of the cross telescopic frame is equipped with a lifting platform, and a product clamp is installed on the lifting platform. The adjusting screw can drive the horizontal slider to move, thereby opening or closing the cross telescopic frame and driving the lifting platform to move up and down. The fixed frame is provided with a first limiting structure and a second limiting structure, which can be connected to the lifting platform respectively. When the lifting platform rises to its limit position, the first limiting structure can be engaged and fixed with the lifting platform. When the lifting platform descends to its limit position, the second limiting structure can abut against the lower end surface of the lifting platform.
2. The manual lifting and adjusting device according to claim 1, characterized in that: The fixed frame is provided with multiple lifting guide rods, and the lifting platform is provided with lifting guide sleeves at corresponding positions to the lifting guide rods. The lifting guide rods pass through the corresponding lifting guide sleeves, and the lifting guide rods are slidably connected to the lifting guide sleeves.
3. The manual lifting and adjusting device according to claim 2, characterized in that: The first limiting structure includes a mounting block, which is connected to the end of the lifting guide rod away from the fixed frame. The mounting block is provided with a locking buckle, which can be engaged and fixed with the lifting platform.
4. The manual lifting and adjusting device according to claim 3, characterized in that: The locking buckle includes a base, a handle, a latch, and a linkage. The base is connected to the mounting block. The handle and the latch are respectively hinged to the base. Both ends of the linkage are respectively hinged to the handle and the latch. The latch is provided with a locking rod. The handle can drive the linkage to swing, thereby causing the latch and the locking rod to rotate and swing.
5. The manual lifting and adjusting device according to claim 4, characterized in that: A rubber block is provided at the end of the locking rod away from the buckle.
6. The manual lifting and adjusting device according to claim 2, characterized in that: There are four lifting guide rods, and the four lifting guide rods are distributed in a rectangular shape on the fixed frame.
7. The manual lifting and adjusting device according to claim 1, characterized in that: The second limiting structure includes two limiting blocks disposed on the fixed frame, the limiting blocks being able to abut against the lower end surface of the lifting platform.
8. The manual lifting and adjusting device according to any one of claims 1-7, characterized in that: One end of the adjusting screw is equipped with an adjusting handwheel.
9. The manual lifting and adjusting device according to claim 8, characterized in that: A locking screw is provided on the fixed frame at a position corresponding to the adjusting screw. The locking screw is adjustablely limited to the fixed frame, and one end of the locking screw can abut against the adjusting screw.
10. The manual lifting and adjusting device according to any one of claims 1-7, characterized in that: The product clamp is detachably connected to the lifting platform, and the product clamp is equipped with a handle.