Strain cart with adjustable layer height

Abstract

The strain cart comprises a movable frame, a plurality of adjusting frames are arranged on the front side and the rear side of the movable frame, a plurality of positioning holes which are vertically distributed in a display mode are formed in the middle of the front side and the middle of the rear side of the movable frame, and a connecting frame is fixedly arranged in the middle of each adjusting frame. The beneficial effects of the utility model are that by adopting the combined structure of the bolt-free plug-pull type positioning rods and the telescopic springs, an operator only needs to pull the handle to realize the rapid positioning and unlocking of the adjusting frame, tools such as a wrench are not needed, the strain transfer progress is obviously accelerated, the operation is simple, the operation is convenient, and the working efficiency is improved. The method is especially suitable for large-scale strain transportation scenes.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of strain culture, especially to a strain cart with adjustable layer height. BACKGROUND

[0002] The strain cart is a functional device specially designed for the storage, transportation and management of microbial strains, and is widely used in biological laboratories, strain production workshops, fermentation factories and other scenes. Its core function is to provide a safe and orderly storage space for strains while meeting the convenient movement needs in a sterile environment.

[0003] The existing strain transportation cart usually has multiple layers for placing various strains, but since each layer of the placing rack needs to be adjusted according to the actual strain height, the bolts need to be disassembled and installed to re-adjust the height of the placing rack. This adjustment method has many drawbacks. First, the operation efficiency is low, as the staff needs to carry tools such as wrenches to repeatedly disassemble and install the bolts, which may take 5-10 minutes to adjust the height of a single placing rack, and even more time to adjust multiple layers, affecting the strain transfer progress. Second, frequent disassembly may damage the structure, as repeatedly turning the bolts may cause wear of the screw holes in the cart stand, reducing the overall stability, and may cause problems such as loosening of the placing rack and decrease in load-bearing capacity over a long period of use. Third, there is a risk of contamination, as the bolts and nuts may fall during disassembly, or the hands may touch the strain containers during operation, which may introduce foreign bacteria, especially in a sterile operating environment, which cannot be ignored. In addition, the adjustment accuracy is limited, as it is difficult to ensure the absolute level of each layer of the placing rack by manual installation, which may cause the strain containers to tilt and affect the culture effect. Therefore, we propose a strain cart with adjustable layer height to solve the above-mentioned problems. SUMMARY

[0004] This section aims to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] The utility model aims at providing a layer height adjustable bacteria cart, can solve the existing bacteria transport cart, usually set up multiple layers for placing various bacteria, but due to each layer placing frame needs to be adjusted according to actual bacteria height, needs to dismount and install bolt, thereby re-adjusts the height of placing frame. This adjustment mode has many drawbacks, first, the operation efficiency is lower, and staff needs to carry spanner and other tools, repeatedly dismounts, installs bolt, and the height of adjusting single placing frame can consume 5~10 minutes, if need to adjust multiple layers, consume more time, influence bacteria transfer progress, second, frequent dismounting can damage structure, and multiple times of screwing bolt can cause the wear and tear of the screw hole of cart stand, reduce overall stability, and long -term use can appear placing frame loosening, descending capacity and other problems, third, there is pollution risk, if bolt, nut accidentally falls during dismounting process, or hand touches bacteria container during operation, can introduce miscellaneous bacteria, especially in the sterile operation environment, this hidden danger can not be ignored. In addition, the adjustment precision is limited, and it is difficult to guarantee that each layer placing frame is absolutely horizontal by manual installation, can cause bacteria container to incline, influence culture effect.

[0006] To solve the above technical problems, the utility model provides a layer height adjustable bacteria cart, adopts the following technical scheme: including mobile frame, the both sides of mobile frame are equipped with multiple adjusting frames, and the middle part of the both sides of mobile frame is equipped with multiple positioning holes that are vertically arranged, the middle part of each adjusting frame is fixedly provided with a connecting frame, each connecting frame is inserted with a positioning rod, one end of each positioning rod close to mobile frame is inserted in the surface of mobile frame through positioning hole, and the other end of each positioning rod away from mobile frame is fixedly provided with a handle, each positioning rod is fixedly provided with a limiting plate outside, the limiting plate is attached to the surface of mobile frame, each positioning rod is sleeved with a telescopic spring outside, and each telescopic spring is located between the inner wall of corresponding connecting frame and limiting plate, and the connecting frame is sleeved outside the middle part assembly of mobile frame.

[0007] Preferably, the inner side of each adjusting frame is provided with a first sliding groove, the inner wall of the both sides of the middle part of mobile frame is fixedly provided with a first sliding strip, and the adjusting frame is slidably arranged on the surface of the first sliding strip through the first sliding groove.

[0008] Preferably, the inner wall of the both sides of mobile frame is provided with a second sliding groove, the both sides of each adjusting frame are fixedly provided with a second sliding strip, and the adjusting frame is slidably arranged between the inner wall of the both sides of mobile frame through the second sliding strip.

[0009] Preferably, the inner side of each adjusting frame is provided with two placing grooves, and two placing frames are arranged between the two adjusting frames with the same horizontal height, and each placing frame is inserted between the two adjusting frames through the placing grooves on the both sides.

[0010] Preferably, the middle part of the two sides of the moving frame is fixed with multiple groups of cross reinforcing frames, and each group of reinforcing frames is arranged in a staggered manner.

[0011] Preferably, the bottom of the moving frame is movably provided with multiple self-locking universal wheels.

[0012] In summary, the utility model has at least one beneficial effect: 1, by adopting the boltless plug-in type positioning rod and telescopic spring combination structure, the operator only needs to pull the handle to realize the quick positioning and unlocking of the adjusting frame, without using tools such as wrench, which significantly speeds up the strain transport progress, especially suitable for large-scale strain transport scene.

[0013] 2, through the precise cooperation of the sliding groove and the sliding bar and the accurate positioning of the positioning rod, the adjusting frame remains stable without deviation during vertical movement, and the high-precision mounting structure of the placing rack ensures that each layer of placing rack is in an absolutely horizontal state, effectively preventing the strain container from tilting, providing a stable placing environment for strain culture and improving the culture success rate. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0015] Figure 1 It is the overall structure schematic diagram of the utility model;

[0016] Figure 2 It is the placing rack mounting structure schematic diagram of the utility model;

[0017] Figure 3 It is the overall structure overhead perspective schematic diagram of the utility model;

[0018] Figure 4 It is the Figure 3 It is the structure enlarged schematic diagram of the utility model in A place.

[0019] In the drawings, the component list represented by each sign is as follows: 1, moving frame;2, adjusting frame;3, positioning hole;4, connecting frame;5, positioning rod;6, handle;7, limiting plate;8, telescopic spring;9, first sliding groove;10, first sliding bar;11, second sliding groove;12, second sliding bar;13, placing groove;14, placing rack;15, reinforcing frame;16, universal wheel. DETAILED DESCRIPTION

[0020] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the range of protection of the utility model.

[0021] The following will be combined with the drawings of the embodiments of the utility model to make further detailed description of the utility model. Figure 1 —4 make further detailed description of the utility model.

[0022] In the embodiment, in order to be able to solve the existing strain transport cart, usually set up multiple layers for placing various strains, but due to the height of each layer of placing frame needs to be adjusted according to actual strain, needs to disassemble and install bolt, thereby the height of placing frame is readjusted. This adjusting mode has many disadvantages, first, the operation efficiency is low, the staff needs to carry wrench and other tools, repeatedly disassembles, installs bolt, and the height of adjusting single placing frame may consume 5-10 minutes, if need to adjust multiple layers, consume more time, influence strain transfer progress;Second, frequent disassembly is easy to damage structure, multiple times of screwing bolt can cause the screw hole of trolley column to wear, reduce overall stability, long-term use can appear problems such as placing frame loosening, load capacity decline;Third, there is pollution risk, if bolt, nut falls accidentally during disassembly process, or hand touches strain container during operation, all can introduce miscellaneous bacteria, especially in aseptic operation environment, this hidden danger cannot be ignored. In addition, the adjusting precision is limited, and it is difficult to ensure that each layer of placing frame is absolutely horizontal by manual installation, which can cause the strain container to be inclined, affecting the culture effect. The utility model discloses a strain cart with adjustable layer height;

[0023] It comprises a moving frame 1, multiple adjusting frames 2 are arranged on the front and rear sides of the moving frame 1, multiple positioning holes 3 vertically arranged and distributed are formed in the middle portions of the front and rear sides of the moving frame 1, a connecting frame 4 is fixedly arranged in the middle portion of each adjusting frame 2, a positioning rod 5 is inserted on the surface of each connecting frame 4, one end of each positioning rod 5 close to the moving frame 1 is inserted on the surface of the moving frame 1 through the positioning hole 3, a handle 6 is fixedly arranged at the end of each positioning rod 5 away from the moving frame 1, a limiting plate 7 is fixedly arranged outside each positioning rod 5, the limiting plate 7 is attached to the surface of the moving frame 1, a telescopic spring 8 is sleeved outside each positioning rod 5, and each telescopic spring 8 is located between the inner wall of the corresponding connecting frame 4 and the limiting plate 7. The connecting frame 4 is sleeved outside the middle portion assembly of the moving frame 1.

[0024] Specifically, when the operator needs to adjust the height of the bacteria cart, first hold the handle 6 at the end of the positioning rod 5, exert an outward force to overcome the elastic resistance of the extension spring 8, and pull out the positioning rod 5 from the positioning hole 3 of the moving frame 1 to release the fixing constraint on the adjusting frame 2. At this time, the adjusting frame 2 can be freely adjusted in the vertical direction on the moving frame 1 by virtue of the precise sliding fit of the first sliding bar 10 and the first sliding groove 9, and the second sliding bar 12 and the second sliding groove 11. Due to the double guiding effect of the T-shaped and H-shaped groove tracks, the adjusting frame 2 remains stable during the adjustment process and does not shake or deviate. The operator moves the adjusting frame 2 to the appropriate position according to the actual height of the bacteria container, releases the handle 6, and the extension spring 8 immediately releases the elastic force to push the positioning rod 5 to accurately insert into the corresponding positioning hole 3, realizing the rapid positioning and locking of the adjusting frame 2.

[0025] A first sliding groove 9 is formed in the inner side of each adjusting frame 2, and a first sliding bar 10 is fixedly arranged on the inner wall of the moving frame 1;

[0026] Specifically, the first sliding groove 9 and the first sliding bar 10 adopt a precise T-shaped structure design, and the inner wall of the sliding groove and the outer surface of the sliding bar are mirror polished to ensure smooth movement of the adjusting frame 2 in the vertical direction of the moving frame 1. At the same time, the first sliding bar 10 is provided with a anti-dropping limiting block at the end to prevent the adjusting frame 2 from accidentally falling off during movement, providing stable guiding support for the adjusting frame 2.

[0027] A second sliding groove 11 is formed in the four inner walls of the moving frame 1, and a second sliding bar 12 is fixedly arranged on the two sides of each adjusting frame 2, and the adjusting frame 2 is slidably arranged between the inner walls of the moving frame 1 through the second sliding bar 12;

[0028] Specifically, the second sliding groove 11 and the second sliding bar 12 adopt an H-shaped groove track cooperation structure.

[0029] Two placing grooves 13 are formed in the inner side of each adjusting frame 2, and two placing frames 14 are arranged between the two adjusting frames 2 with the same horizontal height, and each placing frame 14 is inserted between the two adjusting frames 2 through the placing grooves 13 on the front and back sides;

[0030] Specifically, the cooperation gap between the placing groove 13 and the placing frame 14 is controlled to be within 0.1mm to ensure that the placing frame 14 does not shake after installation.

[0031] A plurality of cross-shaped reinforcing frames 15 are fixedly arranged in the middle of the two sides of the moving frame 1, and each group of reinforcing frames 15 is arranged in a regular staggered manner;

[0032] Specifically, each group of reinforcing frames 15 are staggered in an equilateral triangle array, which can improve the overall torsional strength of the mobile frame 1 and effectively enhance the structural stability of the mobile frame 1 during adjustment and transportation.

[0033] The bottom of the mobile frame 1 is movably provided with a plurality of universal wheels 16 with self-locking function.

[0034] Specifically, the steering mechanism of the universal wheel 16 is provided with a 360° rotation limiting device to prevent the trolley from losing control due to excessive steering.

[0035] The specific working principle is: when the height of the bacteria trolley needs to be adjusted, the operator only needs to hold the handle 6 at the end of the positioning rod 5, pull the positioning rod 5 outward, overcome the elastic force of the extension spring 8, and make the positioning rod 5 disengage from the positioning hole 3 on the mobile frame 1. At this time, the adjusting frame 2 is free to slide in the vertical direction along the first sliding bar 10 and the second sliding bar 12. The operator moves the adjusting frame 2 to the appropriate position according to the height of the bacteria container, releases the handle 6, and the extension spring 8 resets to push the positioning rod 5 to reinsert into the positioning hole 3 of the corresponding height, completing the positioning of the adjusting frame 2. The placing frame 14 is embedded into the placing slot 13 of the two adjusting frames 2 with consistent front and rear horizontal height through the dovetail groove structure, realizing the installation of the placing frame 14. Since the adjusting process does not require the use of tools, it avoids the problems of low efficiency, structural damage, pollution risk and poor adjustment accuracy caused by traditional bolt disassembly and installation. During transportation, the cross-type reinforcing frame 15 enhances the structural stability of the mobile frame 1, and the universal wheel 16 with self-locking function facilitates the movement and fixation of the trolley, ensuring the safety of the bacteria during transportation.

[0036] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or equipment.

[0037] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A height-adjustable bacteria cart comprising a moving frame (1), characterized in that: The mobile frame (1) is provided with a plurality of adjusting frames (2) on both sides, and a plurality of positioning holes (3) are vertically arranged in the middle of both sides of the mobile frame (1), a connecting frame (4) is fixedly arranged in the middle of each adjusting frame (2), a positioning rod (5) is inserted on the surface of each connecting frame (4), one end of each positioning rod (5) near the mobile frame (1) is inserted into the surface of the mobile frame (1) through the positioning hole (3), and the other end of each positioning rod (5) away from the mobile frame (1) is fixedly provided with a handle (6), a limiting plate (7) is fixedly arranged outside each positioning rod (5), the limiting plate (7) is attached to the surface of the mobile frame (1), a telescopic spring (8) is sleeved outside each positioning rod (5), and each telescopic spring (8) is located between the inner wall of the corresponding connecting frame (4) and the limiting plate (7). The connecting frame (4) is sleeved outside the middle component of the mobile frame (1).

2. The height-adjustable bacteria cart according to claim 1, wherein: First sliding grooves (9) are formed in the inner sides of each adjusting frame (2), first sliding strips (10) are fixedly arranged on the inner walls of the front and rear sides of the middle of the mobile frame (1), and the adjusting frames (2) are slidingly arranged on the surfaces of the first sliding strips (10) through the first sliding grooves (9).

3. The height adjustable bacteria cart of claim 1, wherein: Second sliding grooves (11) are formed in the four inner walls of both sides of the mobile frame (1), second sliding strips (12) are fixedly arranged on both sides of each adjusting frame (2), and the adjusting frames (2) are slidingly arranged between the inner walls of both sides of the mobile frame (1) through the second sliding strips (12).

4. The height adjustable bacteria cart of claim 1, wherein: Two placing grooves (13) are formed in the inner sides of each adjusting frame (2), two placing frames (14) are arranged between the two adjusting frames (2) with the same horizontal height, and each placing frame (14) is inserted between the two adjusting frames (2) through the placing grooves (13) on the front and rear sides.

5. The height adjustable bacteria cart of claim 1, wherein: A plurality of groups of cross reinforcing frames (15) are fixedly arranged in the middle of both sides of the mobile frame (1), and the reinforcing frames (15) in each group are regularly staggered.

6. The height adjustable bacteria cart of claim 1, wherein: A plurality of universal wheels (16) with self-locking function are movably arranged at the bottom of the mobile frame (1).

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