A constant temperature drying oven inner wall cleaning device
By designing an inner wall cleaning device that includes a U-shaped handle and a flexible cleaning cloth cover, the problem of laborious cleaning of the inner wall of a constant temperature drying oven is solved, achieving a convenient and efficient cleaning effect, and it is applicable to various models of constant temperature drying ovens.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIAONING LONGTIAN CHEM TECH CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-06-26
AI Technical Summary
Cleaning the inner walls of existing constant temperature drying ovens is labor-intensive, especially wiping deep areas, which is inconvenient and requires repeated manual application of cleaning agents.
An internal wall cleaning device was designed, comprising a U-shaped handle, a fixed base, a support tube, a cleaning agent storage box, a flexible cleaning cloth cover, an absorbent sponge, and an elastic clamping component. The combination of the U-shaped handle and the telescopic rod enables convenient internal wall cleaning. The flexible cleaning cloth cover is fixed by elastic clamping, and the absorbent sponge cooperates with the through hole to simplify the application of cleaning agent.
It enables convenient and uniform internal wall cleaning, reduces labor intensity, improves cleaning efficiency, is suitable for various models of constant temperature drying ovens, and the cleaning cloth cover is easy to replace and has a long service life.
Smart Images

Figure CN224405991U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drying oven cleaning technology, specifically a device for cleaning the inner wall of a constant temperature drying oven. Background Technology
[0002] Constant temperature drying ovens typically employ a double-layer steel plate structure, with an inner liner made of 304 stainless steel and an outer wall treated with powder coating. The middle layer is filled with aluminum silicate fiber insulation, providing excellent insulation performance. They are equipped with double-layer tempered glass observation windows (the inner layer being 12mm explosion-proof glass), and the door frame uses silicone sealing strips to ensure airtightness. Constant temperature drying ovens require regular cleaning and maintenance during actual use. Current technology typically involves the following steps for cleaning the inner walls of a constant temperature drying oven: power off and cooling → vacuuming → spot wiping with a neutral detergent → wiping with a dry cloth → allowing it to dry completely. However, wiping is mostly done manually with a soft cloth, requiring repeated application of cleaning agent, which is quite laborious, especially for deeper areas where the arm needs to be inserted, making wiping even more inconvenient and labor-intensive. Therefore, this project was developed to address these issues. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides a cleaning device for the inner wall of a constant temperature drying oven, which solves the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a cleaning device for the inner wall of a constant temperature drying oven, comprising a U-shaped handle and a fixed base at one end of the U-shaped handle. A support tube is provided on one side of the fixed base, and a cleaning agent storage box is installed at the lower end of the support tube. A flexible cleaning cloth is fitted over the cleaning agent storage box. An absorbent sponge and a squeezing component are provided inside the cleaning agent storage box. One end of the squeezing component extends through the center of the support tube and into the inside of the U-shaped handle. Several through holes are evenly provided on the contact surface between the cleaning agent storage box and the flexible cleaning cloth. An elastic clamping component is slidably installed on the support tube. One end of the elastic clamping component is tightly attached to the edge of the opening of the flexible cleaning cloth. A damping shaft is installed at the center of the U-shaped handle. A U-shaped bracket is connected to the exposed end of the damping shaft. A threaded interface is provided at the end of the U-shaped bracket, and a telescopic rod is assembled and connected at the threaded interface.
[0005] The cleaning agent storage box includes a box body and a cover. The box body has a rectangular groove structure. The opening end of the box body has a slot along the outer side. The opening end of the cover has a locking block that matches the slot along the inner side. The cover has several through holes.
[0006] The aforementioned extrusion component includes a pressure plate, a threaded sleeve, a threaded post, and a knob. The pressure plate is disposed inside the box and matches the absorbent sponge. The threaded sleeve is embedded in the support tube. The threaded post is helically inserted into the threaded sleeve and rotatably connected to the pressure plate. The knob is fixed on the exposed end of the threaded post.
[0007] The aforementioned flexible cleaning cloth cover is made of 100% continuous polyester fiber double-woven fabric and has an elastic cord loop at the open end.
[0008] The aforementioned elastic clamping component includes a compression spring, a sliding sleeve, and a clamping plate. The compression spring is fitted on the outside of the support tube and one end is connected to the fixed seat. The sliding sleeve is fastened to the outside of the compression spring and slides in cooperation with the support tube. The clamping plate is fixed on one end of the sliding sleeve.
[0009] The support tube is provided with symmetrical grooves on both sides, and the sliding sleeve is provided with symmetrical limiting protrusions inside, and the limiting protrusions slide in cooperation with the grooves. Beneficial effects
[0010] This utility model provides a cleaning device for the inner wall of a constant temperature drying oven. It offers the following advantages: This cleaning device is specifically designed for cleaning the inner wall of a constant temperature drying oven. It uses a flexible cleaning cloth sleeve, which is fitted over the outside of the cleaning agent storage box and secured by an elastic clamping component. This effectively prevents the cloth sleeve from shifting during cleaning and is easy to replace. It is equipped with a U-shaped handle, providing a comfortable grip, convenient wiping, and even pressure application. After absorbing cleaning agent into the storage box, the absorbent sponge can be placed inside. During wiping, the cleaning agent can be squeezed through the through-hole into the cloth sleeve, simplifying operation and eliminating the need for repeated application of cleaning agent. Furthermore, one end of the U-shaped handle is connected to a U-shaped bracket via a damping pivot, and the other end of the bracket is connected to a telescopic rod. The length of the telescopic rod and the orientation of the handle can be adjusted according to actual needs, facilitating thorough cleaning of the deepest parts and innermost surfaces of the constant temperature drying oven. It is applicable to various models of constant temperature drying ovens or similar equipment. Attached Figure Description
[0011] Figure 1 This is a three-dimensional structural diagram of the constant temperature drying oven inner wall cleaning device described in this utility model.
[0012] Figure 2 This is an isometric structural diagram of the constant temperature drying oven inner wall cleaning device described in this utility model.
[0013] Figure 3 This utility model Figure 1 A schematic diagram of a partial front view cross-section structure.
[0014] Figure 4 This utility model Figure 1 A partial top-view cross-sectional structural diagram.
[0015] In the diagram: 1. U-shaped handle; 2. Fixing base; 3. Support tube; 4. Cleaning agent storage box; 5. Flexible cleaning cloth cover; 6. Absorbent sponge; 7. Through hole; 8. Damping pivot; 9. U-shaped bracket; 10. Telescopic rod; 11. Pressure plate; 12. Threaded sleeve; 13. Threaded post; 14. Knob; 15. Compression spring; 16. Sliding sleeve; 17. Clamping plate; 18. Slide groove; 19. Limiting protrusion; 401. Box body; 402. Cover. Detailed Implementation
[0016] 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. Example
[0017] Refer to the instruction manual. Figure 1-4 As can be seen, this application specifically designs a cleaning device for the inner wall of a constant temperature drying oven, including a U-shaped handle 1 and a fixed base 2 set at one end of the U-shaped handle 1. A support tube 3 is set on one side of the fixed base 2, and a cleaning agent storage box 4 is installed at the lower end of the support tube 3. A flexible cleaning cloth cover 5 is fitted on the outside of the cleaning agent storage box 4. An absorbent sponge 6 and a squeezing component are set inside the cleaning agent storage box 4. One end of the squeezing component extends through the center of the support tube 3 and extends to the inside of the U-shaped handle. Several through holes 7 are evenly opened on the contact surface between the cleaning agent storage box 4 and the flexible cleaning cloth cover 5. An elastic clamping component is slidably installed on the support tube 3. One end of the elastic clamping component is tightly attached to the edge of the opening of the flexible cleaning cloth cover 5. A damping shaft 8 is installed at the center of the U-shaped handle 1. The exposed end of the damping shaft 8 is connected to a U-shaped bracket 9. A threaded interface is set at the end of the U-shaped bracket 9. The interface is equipped with a telescopic rod 10, designed for cleaning the inner wall of the constant temperature drying oven. A flexible cleaning cloth 5 is used, which is fitted over the outside of the cleaning agent storage box 4 and fixed by an elastic clamping component to effectively prevent the cloth from shifting during cleaning and wiping, and is easy to replace. It is equipped with a U-shaped handle 1, which is comfortable to hold, convenient to wipe, and applies even pressure. After the absorbent sponge 6 absorbs the cleaning agent, it is placed in the storage box. During wiping, the cleaning agent can be squeezed through the through hole 7 into the cloth sleeving by the squeezing component. The operation is simple and does not require repeated dipping of cleaning agent. In addition, one end of the U-shaped handle 1 is connected to a U-shaped bracket 9 through a damping pivot 8, and the other end of the bracket is connected to the telescopic rod 10. The length of the telescopic rod 10 and the direction of the handle can be adjusted according to actual needs, which facilitates thorough cleaning of the deep and innermost end face of the constant temperature drying oven. It can be used in various models of constant temperature drying ovens or similar equipment.
[0018] In the specific implementation process, the cleaning agent storage box 4 mentioned above includes a box body 401 and a cover 402. The box body 401 has a rectangular groove structure. The opening end of the box body 401 has a slot along the outer side. The opening end of the cover 402 has a locking block that matches the slot along the inner side. The cover 402 has several through holes 7. The box body 401 and the cover 402 adopt a split structure design, which facilitates the placement and removal of the water-absorbing sponge 6.
[0019] In the specific implementation process, the above-mentioned extrusion components include a pressure plate 11, a threaded sleeve 12, a threaded post 13, and a knob 14. The pressure plate 11 is set inside the box body 401 and matches the absorbent sponge 6. The threaded sleeve 12 is embedded in the support tube 3. The threaded post 13 is screwed into the threaded sleeve 12 and rotatably connected to the pressure plate 11. The knob 14 is fixed on the exposed end of the threaded post 13. In use, the threaded post 13 is rotated by rotating the knob 14 on the exposed end of the threaded post 13. Then, under the limiting action of the threaded sleeve 12, the threaded post 13 moves inward to the box body 401, thereby pushing the pressure plate 11 to extrude the absorbent sponge 6, squeezing out the cleaning agent adsorbed in the absorbent sponge 6, and further allowing the cleaning agent to enter the flexible cleaning cloth 5 through the through hole 7, so that the flexible cleaning cloth 5 remains moist, improving the cleaning effect on the inner wall of the constant temperature drying oven and the cleaning operation efficiency.
[0020] In practical implementation, the aforementioned flexible cleaning cloth cover 5 is made of 100% continuous polyester double-woven fabric with an elastic cord loop at the open end. 100% continuous polyester double-woven fabric is highly durable, possessing high tear strength and abrasion resistance. Its tear strength is more than five times that of natural fibers, and its abrasion resistance index far exceeds that of cotton fabric. This characteristic allows it to withstand frequent use and high-friction environments, resulting in a longer service life. It can withstand strong tensile forces, making it suitable for handling stubborn stains or cleaning tasks requiring vigorous wiping. It is easy to clean and maintain; the fabric can be directly washed or dry-cleaned. It has good elasticity, quickly recovers its shape after stretching, and is not easily deformed or shrunk after washing, maintaining stable flatness. It is suitable for cleaning scenarios with high dimensional accuracy requirements. It dries quickly after washing and is not prone to leaving marks, allowing for repeated use after washing.
[0021] In the specific implementation process, the above-mentioned elastic clamping component includes a compression spring 15, a sliding sleeve 16, and a clamping plate 17. The compression spring 15 is fitted on the outside of the support tube 3 and one end is connected to the fixed base 2. The sliding sleeve 16 is fastened to the outside of the compression spring 15 and slides in cooperation with the support tube 3. The clamping plate 17 is fixed on one end of the sliding sleeve 16. The support tube has symmetrically opened grooves 18 on both sides. The sliding sleeve 16 has symmetrically arranged limiting protrusions 19 inside. The limiting protrusions 19 slide in cooperation with the grooves 18. When the inner wall of the constant temperature drying oven is seriously dirty, a flexible cleaning cloth can be used. Replace the flexible cleaning cloth cover 5. When replacing, press down on the sliding sleeve 16, so that the sliding sleeve 16 slides along the slide groove 18 towards the fixed seat 2, and then compresses the compression spring 15. At this time, the clamping plate 17 at one end of the sliding sleeve 16 moves away from the position of the flexible cleaning cloth cover 5. After removing the flexible cleaning cloth cover 5, replace it with a new flexible cleaning cloth cover 5. Then release the sliding sleeve 16, and the sliding sleeve 16 moves towards the box body 401 under the return force of the compression spring 15. Then the clamping plate 17 clamps the flexible cleaning cloth cover 5 on the end face of the box body 401. The operation is simple and the replacement is convenient.
[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A device for cleaning the inner wall of a constant temperature drying oven, characterized in that, The device includes a U-shaped handle and a fixed base at one end of the U-shaped handle. A support tube is provided on one side of the fixed base, and a cleaning agent storage box is installed at the lower end of the support tube. A flexible cleaning cloth cover is fitted over the cleaning agent storage box. An absorbent sponge and a squeezing component are provided inside the cleaning agent storage box. One end of the squeezing component extends through the center of the support tube and into the inside of the U-shaped handle. Several through holes are evenly distributed on the contact surface between the cleaning agent storage box and the flexible cleaning cloth cover. An elastic clamping component is slidably installed on the support tube, and one end of the elastic clamping component is in close contact with the opening edge of the flexible cleaning cloth cover. A damping shaft is installed at the center of the U-shaped handle, and the exposed end of the damping shaft is connected to a U-shaped bracket. A threaded interface is provided at the end of the U-shaped bracket, and a telescopic rod is fitted and connected at the threaded interface.
2. The constant temperature drying oven inner wall cleaning device according to claim 1, characterized in that, The cleaning agent storage box includes a box body and a cover. The box body has a rectangular groove structure. The opening end of the box body has a slot along the outer side. The opening end of the cover has a locking block that matches the slot along the inner side. The cover has several through holes.
3. The constant temperature drying oven inner wall cleaning device according to claim 2, characterized in that, The extrusion component includes a pressure plate, a threaded sleeve, a threaded post, and a knob. The pressure plate is disposed inside the box and matches the absorbent sponge. The threaded sleeve is embedded in the support tube. The threaded post is helically inserted into the threaded sleeve and rotatably connected to the pressure plate. The knob is fixed on the exposed end of the threaded post.
4. The constant temperature drying oven inner wall cleaning device according to claim 1, characterized in that, The flexible cleaning cloth cover is made of 100% continuous polyester fiber double-woven fabric and has an elastic cord loop at the open end.
5. The constant temperature drying oven inner wall cleaning device according to claim 1, characterized in that, The elastic clamping component includes a compression spring, a sliding sleeve, and a clamping plate. The compression spring is fitted on the outside of the support tube and one end is connected to the fixed seat. The sliding sleeve is fastened to the outside of the compression spring and slides in cooperation with the support tube. The clamping plate is fixed on one end of the sliding sleeve.
6. The constant temperature drying oven inner wall cleaning device according to claim 5, characterized in that, The support tube has symmetrical grooves on both sides, and the sliding sleeve has symmetrical limit protrusions inside, which slide in cooperation with the grooves.