A retractable dust cover for teaching microscopes

Abstract

This utility model relates to the field of protective equipment for teaching instruments, specifically disclosing a retractable dust cover for a teaching microscope. The cover includes a body with four slidable support rods inside. A folding assembly connects every two support rods, and a storage assembly is located at the top of the cover. The folding assembly includes a scissor lift hinged between the support rods, with a reinforcing rod rotatably connected to the middle of the scissor lift. A slot is formed at the bottom of one end of the reinforcing rod. A sliding plate is formed inside the support rod, and a spring slides within the sliding plate. A limit rod is fixedly connected to one side of the sliding plate. The spring pushes the limit rod into the slot, pressing the reinforcing rod against the side wall of the support rod, thereby locking the unfolded scissor lift structure, providing stable support for the cover, effectively preventing the cover from collapsing, and ensuring dustproof sealing. This utility model has a stable structure, is easy to operate, and combines excellent protective effect with convenient storage function.

Description

Technical Field

[0001] This utility model relates to the field of protective equipment for teaching instruments, and in particular to a retractable dust cover for a teaching microscope. Background Technology

[0002] Microscopes are precision optical instruments widely used in teaching laboratories, and their lenses and mechanical structures require a high degree of cleanliness. In daily teaching activities, microscopes are used frequently and are often left open, making them prone to dust accumulation. Dust contamination not only affects observation results but can also damage the instrument's optical components and mechanical precision.

[0003] Currently, flexible fabric dust covers are commonly used to protect microscopes in teaching environments. These dust covers typically cover the microscope body by using the flexibility of the fabric, with elastic bands or ropes at the opening. While these dust covers are convenient to store when not in use, they have significant drawbacks: due to the lack of an internal support structure, the overall softness of the cover makes it prone to collapse when subjected to external airflow disturbances, accidental contact, or improper storage. Once collapsed, the inner wall of the cover can easily come into contact with protruding parts of the microscope, such as eyepieces, objectives, and focusing knobs, potentially causing lens contamination or mechanical damage. More importantly, a collapsed cover cannot form a sealed space with the instrument table, allowing dust to still enter through gaps, significantly reducing its dust-proof effect. Furthermore, existing dust covers often rely on simple binding for storage, lacking a sturdy structure, resulting in unsatisfactory shape recovery upon reuse, affecting ease of use and reliability of protection. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a retractable dust cover for teaching microscopes. It can provide stable internal support to maintain the shape of the cover, prevent collapse, and ensure effective dustproof sealing. It can also achieve quick and neat folding and storage, adapting to the needs of efficient and frequent use in teaching scenarios.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a retractable dust cover for a teaching microscope, comprising a cover body, wherein four slidable support rods are provided inside the cover body, a folding assembly is connected between every two adjacent support rods, and a storage assembly is provided on the top of the cover body; the folding assembly includes a scissor bracket connected between two support rods, a reinforcing rod is rotatably connected to the middle of the scissor bracket, and a slot is provided at the bottom of the other end of the reinforcing rod; each support rod has a sliding groove inside, a sliding plate is slidably disposed in the sliding groove, a limiting rod is fixedly connected to one side of the sliding plate, the limiting rod extends out of the support rod and can be locked into the slot; a spring is provided between the sliding plate and the end of the sliding groove, the spring is used to push the sliding plate and the limiting rod toward the reinforcing rod, so that the limiting rod presses against the reinforcing rod; the scissor bracket and the support rods together constitute a foldable support frame for supporting and shaping the cover body.

[0006] Furthermore, the storage component includes a strap fixed to the top of the cover, one end of the strap has a hook side and the other end has a rough side, the hook side and the rough side can be glued to each other; the bottom inner side of the cover is provided with an elastic band.

[0007] Furthermore, the inner wall of the cover is also fixed with a plurality of positioning blocks, and the support rod is provided with a groove or hole that cooperates with the positioning block. The positioning block can be inserted into the groove or hole to realize a detachable connection between the positioning block and the support rod.

[0008] Furthermore, the positioning block and the support rod are connected by magnetic attraction.

[0009] Furthermore, the limiting rod has a T-shaped structure, and its head is used for limiting and preventing it from coming out of the slot.

[0010] Furthermore, when the limiting rod is engaged in the slot, the side of the reinforcing rod abuts against the inner wall of the supporting rod.

[0011] Furthermore, the spring is always in a compressed state, providing a continuous clamping force to keep the limiting rod in a locked state.

[0012] This utility model has the following beneficial effects:

[0013] 1. This utility model, through the setting of a folding support mechanism composed of scissor arms, reinforcing rods, limiting rods, and springs, provides stable internal skeletal support for the dust cover during use, effectively avoiding the drawbacks of traditional flexible dust covers that are prone to collapse due to their soft structure and susceptibility to external pressure or airflow. This support structure reliably maintains the shape of the dust cover, forming and maintaining a complete and sealed protective space between it and the microscope and its stage, significantly improving the reliability and effectiveness of dust protection.

[0014] 2. This utility model's folding support mechanism combines the advantages of stable support and convenient storage. The support structure can be quickly unfolded and locked through simple pulling and rotating operations, making it easy to operate. When storing, the locking state can be easily released by releasing the limiting rod, allowing the entire support structure to fold and retract quickly. Its compact size greatly saves storage space, making it ideal for the frequent access and storage needs in teaching settings.

[0015] 3. This utility model achieves rapid and accurate positioning and connection between the cover and the support frame through the cooperation of the magnetic positioning block set on the cover and the support rod, ensuring that the cover can be evenly tensioned and covered on the support structure, avoiding the cover from tilting or twisting, and further ensuring the protective effect.

[0016] 4. The elastic band at the bottom of the cover can be tightened adaptively to effectively seal the gap between the bottom of the cover and the tabletop, preventing dust from entering from the bottom and forming a complete dust barrier.

[0017] 5. The hook-and-loop fasteners on the top of the cover allow for quick and neat binding and securing of the folded cover and supporting structure during storage, resulting in a smaller overall size and more regular shape after storage, making it easier to store and manage, and further enhancing the practicality and convenience of the product. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of a retractable dust cover for a teaching microscope proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of a folding assembly for storing a dust cover on a teaching microscope, as proposed in this utility model.

[0020] Figure 3 This is a schematic diagram of the structure of a support rod for a teaching microscope with a retractable dust cover, as proposed in this utility model.

[0021] Figure 4 This is a schematic diagram of the limiting rod for a retractable dust cover for a teaching microscope proposed in this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of a storage component for a dust cover retractable on a teaching microscope, as proposed in this utility model.

[0023] Legend:

[0024] 1. Cover; 2. Support rod; 3. Folding assembly; 4. Storage assembly; 31. Scissor lift; 32. Reinforcing rod; 33. Limiting rod; 34. Spring; 35. Slide plate; 36. Slide groove; 37. Card slot; 41. Strap; 42. Hook surface; 43. Textured surface; 44. Elastic band; 45. Positioning block. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figures 1-5 The present invention provides a retractable dust cover for a teaching microscope, comprising a cover body 1, a support rod 2, a folding assembly 3, and a storage assembly 4.

[0027] The cover 1 is made of flexible dustproof fabric, and its shape is adapted to the shape of the microscope to be protected. The interior of the cover 1 forms a space to accommodate the microscope. Four support rods 2 are slidably connected inside the cover 1, forming the main support frame of the dust cover. The support rods 2 can be made of lightweight metal or high-strength plastic to ensure support rigidity while facilitating operation.

[0028] The folding assembly 3 is disposed between every two adjacent support rods 2, and mainly consists of a scissor lift 31, a reinforcing rod 32, a limiting rod 33, a spring 34, a sliding plate 35, a sliding groove 36, and a locking slot 37. The two ends of the scissor lift 31 are hinged to the two support rods 2 respectively, forming a telescopic X-shaped frame structure. The reinforcing rod 32 is rotatably connected to the middle of the scissor lift 31 via a pivot. The locking slot 37 is provided at the bottom end of the reinforcing rod 32. The sliding groove 36 is provided inside each support rod 2, and the sliding plate 35 is disposed within the sliding groove 36, allowing the sliding plate 35 to slide along the sliding groove 36. The limiting rod 33 is fixedly connected to one side of the sliding plate 35. The limiting rod 33 has a T-shaped structure, and its head can extend out of the side wall of the support rod 2. The spring 34 is sleeved on the limiting rod 33 and located inside the slide groove 36. One end of the spring abuts against the slide plate 35 and the other end abuts against the inner end wall of the slide groove 36, so that the spring 34 is always in a compressed state, providing a continuous outward pushing force for the slide plate 35 and the limiting rod 33.

[0029] The storage component 4 includes a strap 41, a hook surface 42, a textured surface 43, an elastic band 44, and positioning blocks 45. The strap 41 is fixedly connected to the top of the cover 1. The hook surface 42 is fixedly connected to the left side wall of the strap 41, and the textured surface 43 is fixedly connected to the right side wall. The hook surface 42 and the textured surface 43 together form a hook-and-loop fastener structure. The elastic band 44 is fixedly connected to the bottom of the side wall of the cover 1 to tighten the bottom of the cover and enhance the sealing performance. Two positioning blocks 45 are fixedly connected to the left and right inner walls of the cover 1. The support rod 2 has grooves or holes that match the shape of the positioning blocks 45. The positioning blocks 45 can be made of magnetic material, and the grooves or holes of the support rod 2 can have magnets built into them, or vice versa, so that the positioning blocks 45 and the support rod 2 are attracted and fixed to each other by magnetic force.

[0030] The working principle and usage process of this utility model are as follows:

[0031] When the dust cover is needed, first pull the four support rods 2 outwards. The movement of the support rods 2 causes the scissor lift 31 to extend, thus unfolding the entire support frame into the working state. Then, pull the limiting rod 33 outwards with your fingers. The limiting rod 33 causes the sliding plate 35 to slide within the groove 36 and further compress the spring 34. Next, rotate the reinforcing rod 32 so that the slot 37 at its bottom end aligns with the head of the limiting rod 33. Release the limiting rod 33. Under the restoring force of the spring 34, the sliding plate 35 pushes the limiting rod 33 outwards, causing the T-shaped head of the limiting rod 33 to engage in the slot 37 at the bottom end of the reinforcing rod 32. At this time, the reinforcing rod 32 is firmly fixed, and its side is pressed against the side wall of the support rod 2, thus forming a rigid support for the unfolded scissor lift 31 and effectively preventing the entire support frame from deforming or accidentally folding during use. Then, the cover 1 is fitted onto the unfolded support frame, aligning the positioning block 45 on the inner wall of the cover with and inserting it into the corresponding slot on the support rod 2. Through the magnetic attraction between the two, the cover 1 is quickly and accurately positioned and fixed on the support frame. At the same time, the elastic band 44 at the bottom of the cover adaptively tightens, making the bottom of the cover 1 fit tightly against the experimental table surface, preventing dust from entering from the bottom gaps, forming a complete sealed dustproof space.

[0032] When the dust cover needs to be stored, first remove the cover 1 from the support frame. Then, the cover 1 can be rolled up or folded to organize it, and the top strap 41 can be used to wrap and secure it. Finally, the hook side 42 and the napped side 43 are glued together to secure the cover. For the support frame, pull the limiting rod 33 with your fingers to disengage its head from the slot 37 of the reinforcing rod 32. After unlocking, push the support rod 2 inward, and the scissor lift 31 can be easily folded, bringing the four support rods 2 together for compact storage of the support frame.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dust cover for a microscope for teaching purposes, comprising a cover body (1), characterized in that: The cover (1) is provided with four slidable support rods (2) inside, and a folding assembly (3) is connected between every two adjacent support rods (2). A storage assembly (4) is provided on the top of the cover (1). The folding assembly (3) includes a scissor lift (31) connected between two support rods (2). A reinforcing rod (32) is rotatably connected to the middle of the scissor lift (31). A slot (37) is provided at the bottom of the other end of the reinforcing rod (32). A sliding groove (36) is provided inside each support rod (2), and a sliding plate (35) is slidably disposed in the sliding groove (36). A limiting rod (33) is fixedly connected to one side of the slide plate (35). The limiting rod (33) extends out of the support rod (2) and can be inserted into the slot (37). A spring (34) is provided between the end of the slide plate (35) and the slide groove (36). The spring (34) is used to push the slide plate (35) and the limiting rod (33) toward the reinforcing rod (32) so that the limiting rod (33) presses the reinforcing rod (32). The scissor lift (31) and the support rod (2) together form a foldable support frame for supporting and shaping the cover (1).

2. A dust cover for a microscope according to claim 1, wherein: The storage component (4) includes a strap (41) fixed to the top of the cover (1). One end of the strap (41) is provided with a hook surface (42) and the other end is provided with a rough surface (43). The hook surface (42) and the rough surface (43) can be glued to each other. The bottom inner side of the cover (1) is provided with an elastic band (44).

3. A dust cover for a microscope according to claim 1, wherein: The inner wall of the cover (1) is also fixed with a plurality of positioning blocks (45). The support rod (2) is provided with a groove or hole that cooperates with the positioning block (45). The positioning block (45) can be inserted into the groove or hole to realize a detachable connection between the positioning block (45) and the support rod (2).

4. A dust cover for a microscope according to claim 3, wherein: The positioning block (45) is connected to the support rod (2) by magnetic attraction.

5. A dust cover for storing a microscope according to claim 1, characterized in that: The limiting rod (33) has a T-shaped structure, and its head is used for limiting to prevent it from coming out of the slot (37).

6. A dust cover for a microscope according to claim 1, wherein: When the limiting rod (33) is inserted into the slot (37), the side of the reinforcing rod (32) abuts against the inner wall of the support rod (2).

7. A dust cover for a microscope according to claim 1, wherein: The spring (34) is always in a compressed state, providing a continuous clamping force to keep the limiting rod (33) in a locked state.

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