Device for leveling height of small instrument in narrow space
By designing a height-leveling device with components such as a base, a limiting platform, and a height-adjusting nut in a confined space, the problem of leveling small instruments or mechanical equipment in confined spaces is solved, achieving efficient leveling and fastening, and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINAN WINNER PARTICLE INSTR
- Filing Date
- 2025-06-30
- Publication Date
- 2026-05-12
AI Technical Summary
Small instruments or mechanical equipment are difficult to level effectively in confined spaces. Existing leveling devices are either too large or lack sufficient tightness, resulting in low production efficiency and an inability to adapt to different thickness requirements.
A height leveling device was designed, comprising components such as a base, a limiting platform, a height adjusting nut, a lifting stud, a limiting bolt, and a locking nut. The device achieves height adjustment and fixation of small instruments through limiting grooves, through holes, and threaded connections, making it suitable for confined spaces.
It achieves efficient leveling in confined spaces, possesses a certain load-bearing capacity and tightness, avoids repeated installation of fillers, and improves production efficiency and leveling effect.
Smart Images

Figure CN224229670U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of leveling technology for small instruments, and more specifically, to a device for height leveling of small instruments in a confined space. Background Technology
[0002] Currently, during dry image testing, the vibratory feeder may become uneven, causing the material to fall to one side while adhering to the feeding trough. Furthermore, the required thickness for each small instrument or piece of machinery to be raised during production is unknown.
[0003] The conventional leveling method is to raise the bottom of small instruments with fillers to achieve leveling, such as using copper foil or leveling washers. However, this method is not suitable for instruments with a certain thickness. Furthermore, the inconsistent thickness of fillers means that each instrument needs to be raised and tightened before testing, resulting in low production efficiency.
[0004] Although there are many similar height adjustment products on the market, such as small lifting platforms, their size is generally too large to be installed in the confined space of small instruments or small machinery, or they lack sufficient tightness and load-bearing capacity. Therefore, the problem of how to design a height leveling device with a certain load-bearing capacity and tightness for the confined space of small instruments or small machinery urgently needs to be solved. Utility Model Content
[0005] The purpose of this invention is to solve the problems mentioned in the background art and to propose a device for height leveling of small instruments in a confined space.
[0006] The technical solution adopted by this utility model to solve its technical problem is:
[0007] A device for height leveling small instruments in confined spaces includes a base, a first through hole, a limiting platform, a second through hole, a limiting groove, a height adjusting nut, a lifting stud, a third through hole, mounting bolts, a keyway, a limiting bolt, a locking nut, and fasteners.
[0008] The first through hole is opened on the base;
[0009] The limiting platform is welded to the base, and the limiting platform is provided with a limiting groove and a second through hole with the same diameter as the first through hole and distributed vertically opposite each other;
[0010] The height adjustment nut mates with the limit groove and contacts the inner wall of the limit platform;
[0011] The lifting stud passes through the first through hole and the second through hole in sequence and is threadedly connected to the height adjustment nut. A third through hole with a narrow top and a wide bottom is opened inside the lifting stud.
[0012] The mounting bolt passes through the third through hole and connects to the foot of the small instrument;
[0013] The keyway is formed on the lifting stud along the height direction;
[0014] Two limiting bolts pass through the limiting platform and the base respectively and cooperate with the keyway to limit the horizontal degree of freedom of the lifting stud;
[0015] The locking nut is threaded to one end of the lifting stud.
[0016] Several fasteners are mounted on the base and connected to the table surface of the small instrument.
[0017] Furthermore, the height-adjusting nut has several auxiliary rotating holes on its circumference, one of which is engaged with a steel nail or a steel roller.
[0018] Furthermore, the base is provided with several auxiliary threaded holes, and the fasteners are fastening screws, which pass through the auxiliary threaded holes and are connected to the table surface of the small instrument.
[0019] Furthermore, the thickness of the height-adjusting nut and the width of the limiting groove are adjustable to further reduce the height to accommodate smaller spaces.
[0020] Furthermore, the outer walls of both the height adjustment nut and the locking nut are provided with several anti-slip grooves around their circumference.
[0021] Compared with the prior art, the beneficial effects of this utility model are:
[0022] Compared to existing technologies, this application allows for convenient adjustment of the height of small instruments or mechanical equipment, thus avoiding unevenness. It also possesses a certain load-bearing capacity and tightness, eliminating the need for repeated installation of fillers and testing after tightening. The height adjustment effect is significantly improved, and the device occupies a small area, making it suitable for height leveling operations in confined spaces, resulting in better performance. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0024] Figure 2 This is a schematic diagram of the keyway;
[0025] Figure 3 Schematic diagram of the first through hole and the second through hole;
[0026] Figure 4 This is a diagram showing the installation bolts;
[0027] Figure label:
[0028] 1. Base; 11. First through hole; 2. Limiting platform; 21. Second through hole; 22. Limiting groove; 3. Height adjustment nut; 31. Auxiliary rotation hole; 4. Lifting stud; 41. Third through hole; 42. Mounting bolt; 5. Keyway; 6. Limiting bolt; 7. Locking nut; 8. Auxiliary threaded hole; 9. Fastening screw. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. The present utility model will be further described with reference to the accompanying drawings and embodiments:
[0030] like Figures 1 to 4 As shown, a device for height adjustment of small instruments in a confined space includes a base 1, a first through hole 11, a limiting platform 2, a second through hole 21, a limiting groove 22, a height adjustment nut 3, a lifting stud 4, a third through hole 41, a mounting bolt 42, a keyway 5, a limiting bolt 6, a locking nut 7, and fasteners.
[0031] The first through hole 11 is formed on the base 1;
[0032] The limiting platform 2 is welded to the base 1, and the limiting platform 2 has a limiting groove 22 and a second through hole 21 with the same diameter as the first through hole 11 and arranged vertically opposite each other.
[0033] The height adjustment nut 3 engages with the limiting groove 22 and contacts the inner wall of the limiting platform 2;
[0034] The lifting stud 4 passes through the first through hole 11 and the second through hole 21 in sequence and is threadedly connected to the height adjustment nut 3. The lifting stud 4 has a third through hole 41 that is narrow at the top and wide at the bottom (the purpose of the narrow top and wide bottom design is to allow the mounting bolt 42 to be completely inside the third through hole 41, and the end of the mounting bolt 42 passes through the third through hole 41 and is connected to the foot of the small instrument).
[0035] Mounting bolt 42 passes through the third through hole 41 and is connected to the foot of the small instrument;
[0036] The keyway 5 is formed on the lifting stud 4 along the height direction;
[0037] Two limiting bolts 6 pass through the limiting platform 2 and the base 1 respectively and cooperate with the keyway 5 to limit the horizontal degree of freedom of the lifting stud 4;
[0038] The locking nut 7 is threaded to one end of the lifting stud 4;
[0039] Several fasteners are mounted on the base 1 and connected to the table surface of the small instrument.
[0040] To reduce the difficulty of rotating the adjusting nut 3 under heavy loads, further optimizations to the above-described embodiments are made, such as... Figure 1 , Figure 3 and Figure 4 As shown, the height adjustment nut 3 has several auxiliary rotation holes 31 on its circumference, one of which is matched with a steel nail or a steel roller (the steel nail and steel roller are not shown in the figure).
[0041] Specific implementation of the embodiments of this utility model, such as Figure 4 As shown, the base 1 has several auxiliary threaded holes 8, and the fasteners are fastening screws 9. The fastening screws 9 pass through the auxiliary threaded holes 8 and are connected to the table surface of the small instrument.
[0042] In a further refinement of the embodiment of this utility model, the thickness of the height nut 3 and the width of the limiting groove 22 are adjustable to further reduce the height to adapt to smaller spaces.
[0043] To further facilitate manual rotation of the locking nut 7 and the adjusting nut 3, the above embodiment is further optimized as shown in the figure. Figure 3 and Figure 4 As shown, the outer walls of both the adjusting nut 3 and the locking nut 7 are provided with several anti-slip grooves, which are not numbered in the figure.
[0044] The working process of this utility model is as follows:
[0045] First, insert the height adjustment nut 3 into the limiting groove 22 and make it contact the inner wall of the limiting platform 2 and the upper surface of the base 1. Then, pass the lifting stud 4 through the first through hole 11 and the second through hole 21 in sequence and connect it with the height adjustment nut 3 by thread. The auxiliary rotation hole 31 on the height adjustment nut 3 can be used to insert a steel nail or steel roller lever to help it rotate when the load is large and it is difficult to turn by hand. Then, by rotating the height adjustment nut 3, the lifting stud 4 can be driven to rotate. When the keyway 5 of the lifting stud 4 turns to the position facing the limiting bolt 6, two limiting bolts 6 are installed one after another. The two limiting bolts 6 act as keys. After installation, they will be locked in the keyway 5 to prevent it from rotating horizontally, so that it only has the freedom of vertical movement. After the keyway 5 is locked by the limiting bolt 6, the height adjustment nut 3 can be rotated to drive the lifting stud 4 to rise and fall. When the desired height is adjusted, the locking nut 7 is locked to maintain the current desired height.
[0046] It should be noted that the locking nut 7 can also be installed at the lower end of the lifting stud 4, that is, below the base 1. The specific installation position depends on the situation and space arrangement.
[0047] After the height leveling is completed, the mounting bolt 42 is passed through the third through hole 41 and fixed to the foot of the small instrument. Then, the fastening screw 9 is passed through the base 1 and connected to the table of the small instrument to complete the installation. One of the application scenarios of this design is to connect to the foot of the vibrator for leveling and fixing, preventing deviation during vibration. It also has a strong load-bearing capacity for heavier components.
[0048] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A device for height leveling of small instruments in a confined space, characterized in that, Includes a base (1), a first through hole (11), a limiting platform (2), a second through hole (21), a limiting groove (22), a height adjustment nut (3), a lifting stud (4), a third through hole (41), a mounting bolt (42), a keyway (5), a limiting bolt (6), a locking nut (7), and fasteners. The first through hole (11) is opened on the base (1); The limiting platform (2) is welded to the base (1), and the limiting platform (2) has a limiting groove (22) and a second through hole (21) with the same diameter as the first through hole (11) and is distributed vertically opposite each other. The height adjustment nut (3) engages with the limiting groove (22) and contacts the inner wall of the limiting platform (2); The lifting stud (4) passes through the first through hole (11) and the second through hole (21) in sequence and is threadedly connected to the height adjustment nut (3). The lifting stud (4) has a third through hole (41) that is narrow at the top and wide at the bottom. The mounting bolt (42) passes through the third through hole (41) and is connected to the foot of the small instrument; The keyway (5) is formed on the lifting stud (4) along the height direction; Two limiting bolts (6) pass through the limiting platform (2) and the base (1) respectively and cooperate with the keyway (5) to limit the horizontal degree of freedom of the lifting stud (4); The locking nut (7) is threaded to one end of the lifting stud (4); Several fasteners are set on the base (1) and connected to the table surface of the small instrument.
2. The device for height leveling of small instruments in a confined space according to claim 1, characterized in that, The height adjustment nut (3) has several auxiliary rotating holes (31) on its circumference, one of which is matched with a steel nail or a steel roller.
3. The device for height leveling of small instruments in a confined space according to claim 1, characterized in that, The base (1) has several auxiliary threaded holes (8), and the fasteners are fastening screws (9). The fastening screws (9) pass through the auxiliary threaded holes (8) and are connected to the table surface of the small instrument.
4. The device for height leveling of small instruments in a confined space according to claim 1, characterized in that, The thickness of the height-adjusting nut (3) and the width of the limiting groove (22) are adjustable to further reduce the height to accommodate smaller spaces.
5. The device for height leveling of small instruments in a confined space according to claim 1, characterized in that, The outer walls of both the height adjustment nut (3) and the locking nut (7) are provided with several anti-slip grooves around their circumference.