Movable base for nitrogen making machine

By introducing self-locking casters and a limiting mechanism onto the mobile base of the nitrogen generator, the problem of instability during movement of the nitrogen generator was solved, achieving stable fixation and convenient maintenance of the equipment.

CN224079932UActive Publication Date: 2026-04-03HANGZHOU OURUI AIR SEPARATION EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

The existing mobile base for nitrogen generators lacks a fixed limit for the nitrogen generator during use, which makes the equipment prone to displacement under external force, affecting normal operation and posing safety hazards.

Method used

The system employs self-locking moving wheels and a limiting mechanism. The self-locking moving wheels can be easily installed and disassembled through the assembly mechanism, while the limiting mechanism uses a drive motor to drive the rotating blade and the articulated arm to clamp and limit the nitrogen generator, ensuring the stability of the equipment.

Benefits of technology

This technology ensures the stability and ease of disassembly of the nitrogen generator during movement, reduces the risk of equipment displacement, improves safety, and simplifies wheel replacement and maintenance.

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Abstract

The utility model discloses a movable base for a nitrogen making machine, which comprises a nitrogen making machine supporting base and self-locking moving wheels, the self-locking moving wheels are arranged on both sides of the bottom end of the nitrogen making machine supporting base, and guide grooves are arranged on both sides of the top end of the nitrogen making machine supporting base; the four self-locking moving wheels are arranged at the bottom of the nitrogen making machine supporting base, and fixing blocks are fixed to the top ends of the self-locking moving wheels. According to the nitrogen making machine supporting base, the driving motor drives the main shaft and the rotating hinge plate to rotate, in the rotating process of the rotating hinge plate, the hinge arm is matched to pull the moving blocks to horizontally move along the limiting column, and in the process, the two moving blocks move oppositely and drive the guide block and the limiting plate to synchronously move, so that after a nitrogen making machine is placed on the nitrogen making machine supporting base, the nitrogen making machine can move horizontally. The limiting plate and the rubber plate can be attached to the outer wall of the nitrogen making machine to clamp and limit the nitrogen making machine, so that the placement stability of the nitrogen making machine is ensured, and position deviation is not prone to occurring in the moving process of the nitrogen making machine.
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Description

Technical Field

[0001] This utility model relates to the technical field of nitrogen generator bases, and in particular to a mobile base for a nitrogen generator. Background Technology

[0002] A nitrogen generator is a device that uses air as raw material and separates oxygen and nitrogen in it using physical methods to obtain nitrogen gas. According to the application category, nitrogen generators can be divided into two types: mobile and stationary. Among them, the mobile nitrogen generator is based on the stationary nitrogen generator with an additional base. The nitrogen generator is placed on the base and the nitrogen generator is moved by pushing the base. Due to its flexibility and convenience, the mobile nitrogen generator is more commonly used in industrial production.

[0003] A mobile base for a nitrogen generator, with publication number CN221801042U, is disclosed. It includes a nitrogen generator body, a nitrogen exhaust pipe located at the upper end of the nitrogen generator body, and a base located at the lower end of the nitrogen generator body. Fixed shells are located at the four corners of the upper end of the base. Each fixed shell has an end cap fixed to its upper end by bolts. A mounting block is spring-loaded to the lower end of each end cap. The lower end of the mounting block extends through to the bottom of the base and is equipped with casters. Positioning components are located inside the multiple fixed shells. The advantages of this invention are: by providing casters at the lower end of the end caps, and connecting the casters to the end caps via springs, a cushioning effect is achieved, effectively preventing violent shaking during movement. The bolted installation and fixation of the end caps facilitates installation and disassembly by workers, and makes it convenient for workers to replace the casters. This effectively avoids the inconvenience of replacing casters installed below the base.

[0004] In the prior art, the nitrogen generator is placed directly on the base, but there is no fixed limit for the nitrogen generator. The nitrogen generator is prone to displacement when subjected to external forces (such as vibration during operation, accidental touch by personnel, or slight vibration of the external environment). This instability not only affects the normal operation of the equipment, but may also pose a safety hazard to the surrounding environment. Therefore, the nitrogen generator has certain safety hazards during the movement of the base, and corresponding improvements are needed. Utility Model Content

[0005] The purpose of this utility model is to provide a mobile base for a nitrogen generator, so as to solve the problem mentioned in the background art that the existing mobile bases for nitrogen generators are inconvenient to fix the nitrogen generator during use.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a mobile base for a nitrogen generator, comprising a nitrogen generator support base and self-locking casters, wherein self-locking casters are provided on both sides of the bottom end of the nitrogen generator support base, and guide grooves are provided on both sides of the top end of the nitrogen generator support base;

[0007] Four self-locking casters are provided at the bottom of the nitrogen generator support base. Each caster has a fixed block at its top and an assembly mechanism at one end. The nitrogen generator support base has an internal cavity with a limit mechanism inside. A battery is connected inside the internal cavity. A sound-insulating pad is connected to the top of the nitrogen generator support base.

[0008] Preferably, the assembly mechanism includes a snap-fit ​​groove, which is located at the bottom of the nitrogen generator support base. Support plates are fixed on both sides inside the snap-fit ​​groove, and a rotating shaft is connected to one side of each support plate. One end of each rotating shaft extends to the outside of the nitrogen generator support base and is connected to a handle.

[0009] Preferably, a locking block is sleeved on the outer side of the rotating shaft, and a compression spring is connected to one side of the locking block. One end of the compression spring is connected to the inner wall of the locking groove. An active insertion block is connected inside the locking groove between the locking blocks, and one side of the active insertion block is fixedly connected to one side of the fixed block.

[0010] Preferably, the end of the active insertion block is arc-shaped, and the active insertion block is engaged between two locking blocks.

[0011] Preferably, the limiting mechanism includes a drive motor, which is disposed inside the built-in cavity. The drive motor and the built-in cavity are electrically connected by a wire. A main shaft is fixed to the output shaft end of the drive motor, and a rotating plate is sleeved on the outside of the main shaft. Connecting posts are fixed on both sides of the top of the rotating plate, and hinge arms are sleeved on the outside of the connecting posts. A movable seat is movably connected to one end of each hinge arm, and a moving block is fixed to one end of the movable seat. Limiting posts penetrate both sides of the interior of the moving block.

[0012] Preferably, each of the limiting posts has a slider fixed at its bottom, and the slider slides in a groove located inside the built-in cavity.

[0013] Preferably, each of the movable blocks has a guide block fixed to its top, and each guide block has a limit plate fixed to its top, with a rubber plate connected to one side of each limit plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the movable base of the nitrogen generator not only has the effect of fixing and limiting the nitrogen generator to ensure that the nitrogen generator can remain stable during movement, but also the movable wheels can be easily disassembled for later maintenance and replacement.

[0015] The drive motor drives the main shaft and rotating blade to rotate. During the rotation of the rotating blade, the hinged arm pulls the moving block to move horizontally along the limiting post. During this process, the two moving blocks move towards each other and drive the guide block and the limiting plate to move synchronously. After the nitrogen generator is placed on the nitrogen generator support base, the limiting plate and rubber plate can be used to stick to the outer wall of the nitrogen generator to clamp and limit the nitrogen generator, so as to ensure the stability of the nitrogen generator and prevent the position from shifting during its movement.

[0016] By rotating the handle that extends from the shaft to the outside of the nitrogen generator support base, the shaft and the locking block are rotated until the locking block separates from the active insertion block. This allows the self-locking moving wheel and the fixed block to be pulled, causing the active insertion block to disengage from the locking groove. The self-locking moving wheel can then be removed from the nitrogen generator support base, replacing the traditional bolt-type fixing. This method is convenient and facilitates future inspection, maintenance, and replacement of the self-locking moving wheel. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of 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 based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0019] Figure 2 This is a top view of the structure of this utility model;

[0020] Figure 3 This is a top view cross-sectional structural diagram of the present invention;

[0021] Figure 4 For the present utility model Figure 1 Schematic diagram of the structure at point A in the middle;

[0022] Figure 5 This is a partial three-dimensional structural diagram of the limiting mechanism of this utility model.

[0023] The following are the annotations in the diagram: 1. Nitrogen generator support base; 101. Guide groove; 2. Self-locking moving wheel; 3. Fixing block; 4. Assembly mechanism; 401. Snap-fit ​​groove; 402. Snap-fit ​​block; 403. Support plate; 404. Rotating shaft; 405. Compression spring; 406. Active insertion block; 5. Internal cavity; 6. Limiting mechanism; 601. Drive motor; 602. Main shaft; 603. Rotating leaf plate; 604. Hinge arm; 605. Moving block; 606. Limiting post; 607. Connecting post; 608. Movable seat; 7. Limiting plate; 701. Rubber plate; 8. Sound insulation base pad; 9. Guide block; 10. Battery. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] Please see Figures 1-5 The present invention provides the following technical solution:

[0026] Example 1

[0027] To address the cumbersome disassembly and assembly of the self-locking casters 2 on existing mobile bases for nitrogen generators, the following technical solution is proposed. Please refer to the following for details. Figure 1 , Figure 4 A movable base for a nitrogen generator includes a nitrogen generator support base 1 and self-locking casters 2. Self-locking casters 2 are provided on both sides of the bottom end of the nitrogen generator support base 1, and guide grooves 101 are provided on both sides of the top end of the nitrogen generator support base 1. Four self-locking casters 2 are provided at the bottom of the nitrogen generator support base 1, and a fixing block 3 is fixed to the top of each self-locking caster 2. An assembly mechanism 4 is provided at one end of each fixing block 3. The assembly mechanism 4 includes a snap-fit ​​groove 401, which is located at the bottom end of the nitrogen generator support base 1. Support plates 40 are fixed to both sides inside the snap-fit ​​groove 401. 3. A rotating shaft 404 is connected to one side of the support plate 403. One end of the rotating shaft 404 extends to the outside of the nitrogen generator support base 1 and is connected to a handle. A locking block 402 is sleeved on the outside of the rotating shaft 404. A compression spring 405 is connected to one side of the locking block 402. One end of the compression spring 405 is connected to the inner wall of the locking groove 401. An active insertion block 406 is connected inside the locking groove 401 between the locking blocks 402. One side of the active insertion block 406 is fixedly connected to one side of the fixed block 3. The end of the active insertion block 406 is arc-shaped. The active insertion block 406 is locked between the two locking blocks 402.

[0028] In this embodiment, the active insert 406 is inserted into the locking slot 401. The end of the active insert 406 is arc-shaped, which pushes the outer wall of the locking block 402, causing it to flip outward and compressing the compression spring 405. When the active insert 406 is fully inserted, the compression spring 405 returns to its original position, pushing the corresponding locking block 402 to lock on both sides of the active insert 406, thus fixing and limiting the active insert 406. This allows the self-locking moving wheel 2 and the fixing block 3 to be fixedly installed on the nitrogen generator support base 1, enabling the nitrogen generator support base 1 to move freely. One end of the rotating shaft 404 extends to the outside of the nitrogen generator support base 1 and is connected to a handle. Later, rotating the handle causes the rotating shaft 404 to rotate, thereby moving the locking block 402 away from the active insert 406, making it easy to remove the active insert 406 and the self-locking moving wheel 2 for later inspection, replacement, and maintenance.

[0029] Example 2

[0030] This embodiment differs from Embodiment 1 in that it utilizes the limiting mechanism 6 to fix and limit the placement of the nitrogen generator, ensuring its stability. Therefore, the following technical solution is disclosed; please refer to it for details. Figure 1 , Figure 2 , Figure 3 , Figure 5 The nitrogen generator support base 1 has an internal cavity 5, and a limiting mechanism 6 is installed inside the internal cavity 5. The limiting mechanism 6 includes a drive motor 601, which is located inside the internal cavity 5. The drive motor 601 and the internal cavity 5 are electrically connected by a wire. A main shaft 602 is fixed to the output shaft end of the drive motor 601, and a rotating blade 603 is sleeved on the outside of the main shaft 602. Connecting posts 607 are fixed on both sides of the top of the rotating blade 603, and hinge arms 604 are sleeved on the outside of each connecting post 607. One end of each is movably connected to a movable seat 608, and one end of the movable seat 608 is fixed with a movable block 605. Both sides of the movable block 605 are through-through limit posts 606. The bottom of each limit post 606 is fixed with a slider, which slides in a slide groove. The slide groove is set inside the internal cavity 5. The top of each movable block 605 is fixed with a guide block 9, and the top of each guide block 9 is fixed with a limit plate 7. One side of each limit plate 7 is connected with a rubber plate 701. The internal cavity 5 is connected with a storage battery 10. The top of the nitrogen generator support base 1 is connected with a sound insulation pad 8.

[0031] In this embodiment, the drive motor 601 drives the main shaft 602 and the rotating plate 603 to rotate. During the rotation of the rotating plate 603, the hinge arm 604 pulls the moving block 605 to move horizontally along the limiting post 606. During this process, the two moving blocks 605 move towards each other and drive the guide block 9 and the limiting plate 7 to move synchronously. After the nitrogen generator is placed on the nitrogen generator support base 1, the limiting plate 7 and the rubber plate 701 can be used to adhere to the outer wall of the nitrogen generator to clamp and limit the nitrogen generator, so as to ensure the stability of the nitrogen generator and prevent positional displacement during its movement. A sound insulation pad 8 is provided on the nitrogen generator support base 1. Placing the nitrogen generator on the sound insulation pad 8 on the nitrogen generator support base 1 can achieve a certain sound insulation and vibration isolation effect.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A movable base for a nitrogen generator, comprising a nitrogen generator support base (1) and self-locking moving wheels (2), wherein the nitrogen generator support base (1) is provided with self-locking moving wheels (2) on both sides of the bottom end, and the nitrogen generator support base (1) is provided with guide grooves (101) on both sides of the top end. Its features are: Four self-locking moving wheels (2) are provided at the bottom of the nitrogen generator support base (1). Each self-locking moving wheel (2) has a fixing block (3) fixed at its top. Each fixing block (3) has an assembly mechanism (4) at one end. The nitrogen generator support base (1) has an internal cavity (5) and a limit mechanism (6) inside the internal cavity (5). A storage battery (10) is connected inside the internal cavity (5). A sound insulation pad (8) is connected to the top of the nitrogen generator support base (1).

2. The movable base for a nitrogen generator according to claim 1, characterized in that: The assembly mechanism (4) includes a snap-fit ​​groove (401), and the snap-fit ​​groove (401) is located at the bottom of the nitrogen generator support base (1). Both sides of the snap-fit ​​groove (401) are fixed with support plates (403), and one side of the support plate (403) is connected with a rotating shaft (404). One end of the rotating shaft (404) extends to the outside of the nitrogen generator support base (1) and is connected with a handle.

3. The movable base for a nitrogen generator according to claim 2, characterized in that: A locking block (402) is sleeved on the outside of the rotating shaft (404), and a compression spring (405) is connected to one side of the locking block (402). One end of the compression spring (405) is connected to the inner wall of the locking groove (401). An active insert block (406) is connected inside the locking groove (401) between the locking blocks (402), and one side of the active insert block (406) is fixedly connected to one side of the fixed block (3).

4. A movable base for a nitrogen generator according to claim 3, characterized in that: The active plug (406) has an arc-shaped end and is engaged between two plugs (402).

5. A movable base for a nitrogen generator according to claim 1, characterized in that: The limiting mechanism (6) includes a drive motor (601), and the drive motor (601) is located inside the built-in cavity (5). The drive motor (601) and the built-in cavity (5) are electrically connected by a wire. The output shaft end of the drive motor (601) is fixed with a main shaft (602), and a rotating plate (603) is sleeved on the outside of the main shaft (602). Connecting posts (607) are fixed on both sides of the top of the rotating plate (603), and hinge arms (604) are sleeved on the outside of the connecting posts (607). A movable seat (608) is movably connected to one end of the hinge arm (604), and a moving block (605) is fixed to one end of the movable seat (608). Limiting posts (606) pass through both sides of the moving block (605).

6. A movable base for a nitrogen generator according to claim 5, characterized in that: Each of the limiting posts (606) has a slider fixed at its bottom, and the slider slides in the groove, which is located inside the built-in cavity (5).

7. A movable base for a nitrogen generator according to claim 5, characterized in that: Each of the moving blocks (605) has a guide block (9) fixed at its top, and each of the guide blocks (9) has a limit plate (7) fixed at its top. Each of the limit plates (7) has a rubber plate (701) connected to one side.

Citation Information

Patent Citations

  • Movable base for nitrogen making machine

    CN221801042U