Adjustable cleaning device for polyurethane reactor

Abstract

The utility model discloses a kind of adjustable cleaning devices for polyurethane reaction kettle, it includes pedestal, driving device and scraping mechanism, the four sides of the pedestal are equipped with the support with adjustable telescopic structure, buckle connection structure is equipped between the driving device and scraping mechanism;The scraping mechanism includes main shaft, multiple annular array arranged telescopic rod, the telescopic rod is equipped with at least two vertical rods, the vertical rod and the telescopic rod between, the vertical rod and vertical rod between are equipped with splicing structure, the vertical rod is also equipped with detachable connection's scraper plate.The utility model is equipped with adjustable telescopic structure on pedestal support and adjustable length telescopic rod and splicing vertical rod in scraping mechanism, realize the flexible, accurate adjustment of installation span and cleaning coverage range, to meet the cleaning demand of multiple different specifications size cylindrical polyurethane reaction kettle, improve universality, effectively avoid the high cost of special cleaning device for different reaction kettle.

Description

Technical Field

[0001] This utility model relates to the technical field of polyurethane processing equipment, and specifically to an adjustable cleaning device for a polyurethane reactor. Background Technology

[0002] In the polyurethane production process, the reactor is a core piece of equipment, and its inner wall is prone to adhering with residual materials after the reaction. If these residues are not cleaned promptly and thoroughly, they will not only affect the quality of subsequent batches of product but may also cause safety issues. Currently, the cleaning of reactors mostly relies on manual entry or the use of fixed-size mechanical cleaning devices. Manual cleaning suffers from low efficiency, high labor intensity, and high safety risks; while traditional mechanical cleaning devices usually have fixed structures (such as scraper arm length and scraper height), which can only be adapted to reactors of a single specification. For production enterprises with reactors of different diameters and depths, multiple sets of cleaning devices need to be purchased, resulting in high equipment costs, inconvenient management, large storage space requirements, and low applicability. Utility Model Content

[0003] This utility model addresses the shortcomings of current technology by providing an adjustable cleaning device for polyurethane reactors, aiming to solve the technical problems of slow cleaning efficiency and high safety risks in existing reactor cleaning technologies.

[0004] The technical solution adopted by this utility model to achieve the above objectives is as follows: An adjustable cleaning device for a polyurethane reactor includes a base with supports on its four sides for mounting on the polyurethane reactor. Each support has an adjustable telescopic structure. A driving device is located at the center of the base, and the driving device has a scraping mechanism. A snap-fit ​​connection structure is provided between the driving device and the scraping mechanism. The scraping mechanism includes a main shaft with multiple telescopic rods arranged in a circular array. Each end of the telescopic rod has at least two uprights. There are splicing structures between the uprights and the telescopic rods, and between the uprights themselves. Each upright also has a scraper, and the scraper is detachably connected to the upright.

[0005] As a further improvement, the adjustable telescopic structure includes support rods, each of which is provided with a sliding cavity. A support rod is provided inside the sliding cavity and can move along the direction of the sliding cavity. The support rod is provided with multiple arrayed through holes. One end of the support rod is provided with a top block assembly that is locked in the through hole after adjustment. The other end of the support rod is provided with an arc-shaped locking block, each of which is provided with a locking bolt that abuts against the outer wall.

[0006] As a further improvement, the base has a through hole at its center. The driving device includes a drive motor and a controller. The drive motor is fixed in the through hole of the base by screws. The controller is located next to the drive motor. The drive end of the drive motor passes through the through hole to the bottom of the base. A bearing is provided between the drive end and the through hole. As a further improvement, the snap-fit ​​connection structure includes at least two arrayed hooks and at least two arrayed snap holes. The hooks are located at the end of the drive end of the drive motor, and each hook includes an elastic connecting part and a hook part located at the end of the elastic connecting part. The snap holes are located on the spindle, and each snap hole includes an insertion part into which the hook is inserted and a snap hole part into which the hook is engaged and fixed during connection. The insertion part has a space for movement when the hook performs a release action.

[0007] As a further improvement, the drive end of the drive motor is provided with a rectangular positioning post, and the end of the spindle is provided with a rectangular positioning hole for inserting the rectangular positioning post. Both the end of the rectangular positioning post and the rectangular positioning hole are provided with guide surfaces.

[0008] As a further improvement, the telescopic rod includes a first support rod, the first support rod having a first sliding cavity, a second support rod moving along the first sliding cavity within the first sliding cavity, the first support rod having a plurality of arrayed through holes II, and the end of the second support rod having a top block assembly II that is locked in the through holes II after adjustment.

[0009] As a further improvement, one end of the upright is connected to the end of the second support rod, and one end of the other upright is connected to the other end of the upright. The splicing structure includes a hook group and a buckle hole group. The hook group is set at one end of the second support rod and one end of the upright, and the buckle hole group is set at the other end of the upright.

[0010] As a further improvement, the hook assembly includes two oppositely arranged hooks, and the buckle hole assembly includes two oppositely arranged buckle holes, with each hook being inserted into the buckle hole during assembly.

[0011] As a further improvement, the scraper is provided with a mounting part, the cross-section of the mounting part is a convex structure, the detachable connection includes a slot for inserting the mounting part, one end of the slot is provided with a limiting block, the other end of the slot is provided with an insertion port, and the two oppositely arranged inner walls of the insertion port are provided with elastic sheets.

[0012] As a further improvement, the base is provided with two handles.

[0013] Compared with the prior art, the adjustable cleaning device for polyurethane reactors provided in this embodiment of the present invention has at least one of the following technical effects: 1. This utility model achieves flexible and precise adjustment of the installation span and cleaning coverage (including diameter and depth) by using an adjustable telescopic structure set on the base support and an adjustable telescopic rod and splicable uprights in the scraping mechanism. This meets the cleaning needs of various cylindrical polyurethane reactors of different specifications and sizes, greatly improves versatility, and effectively avoids the high cost of customizing special cleaning devices for different reactors.

[0014] 2. By using a snap-fit ​​connection structure between the drive unit and the scraping mechanism, and between each upright, and a quick assembly and disassembly structure consisting of slots and elastic plates between the scraper and the upright, the entire device can be quickly assembled and disassembled. It can be compactly stored when not in use, which greatly saves storage space and also facilitates transportation and maintenance.

[0015] 3. The rectangular positioning pins on the drive end cooperate with the rectangular positioning holes on the main shaft to ensure the stability and reliability of power transmission, prevent the scraping mechanism from slipping or shaking during operation, and ensure the smooth operation of the cleaning operation.

[0016] 4. The scraper is fixed to the upright via a detachable connection, which not only allows for flexible adjustment of the scraper's position and number according to the actual shape of the reactor and cleaning needs, but also facilitates easy replacement of worn scrapers, reducing long-term maintenance costs. The drive unit provides stable power for the entire cleaning process, ensuring thorough and efficient cleaning.

[0017] 5. By using arc-shaped locking blocks and bolts, the device can be securely locked at the reactor inlet, improving stability and safety during operation. The handles on the base also facilitate the handling and installation of the device. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the adjustable cleaning device for a polyurethane reactor in this embodiment. Figure 2 This is an exploded view of the adjustable cleaning device for a polyurethane reactor in this embodiment. Figure 3 This is a schematic diagram of the structure of the upright in this embodiment; Figure 4 This is a schematic diagram of the scraper structure in this embodiment; Figure 5 This is a top view schematic diagram of the adjustable cleaning device for a polyurethane reactor in this embodiment; Figure 6 for Figure 5 AA section view diagram; Figure 7 for Figure 6 An enlarged diagram of A in the diagram. Detailed Implementation

[0020] The following description is only a preferred embodiment of the present invention and does not limit the scope of protection of the present invention.

[0021] For examples, see the appendix. Figures 1-7 An adjustable cleaning device 1 for a polyurethane reactor includes a base 2. Supports 3 for mounting on the polyurethane reactor are provided on all four sides of the base 2. Each support 3 has an adjustable telescopic structure 4. A driving device 5 is located at the center of the base 2. The driving device 5 has a scraping mechanism 6. A snap-fit ​​connection structure 7 is provided between the driving device 5 and the scraping mechanism 6. The scraping mechanism 6 includes a main shaft 60. The main shaft 60 has multiple telescopic rods 61 arranged in a circular array. At least two uprights 62 are provided at the ends of each telescopic rod 61. A splicing structure 8 is provided between the uprights 62 and the telescopic rods 61, and between the uprights 62 themselves. Each upright 62 also has a scraper 63, which is detachably connected to the upright 62 9.

[0022] The adjustable telescopic structure 4 includes a support rod 40, each support rod 40 having a sliding cavity 41. A support rod 42 is housed within each sliding cavity 41 and can move along the direction of the sliding cavity 41. Each support rod 40 has multiple arrayed through holes 400. One end of each support rod 42 has a top block assembly 420 that, after adjustment, is locked within the through hole 400. The other end of each support rod 42 has an arc-shaped locking block 421, each arc-shaped locking block 421 having a locking bolt 421a abutting against the outer wall. Bolt 421a is threadedly connected to the arc-shaped locking block 421. Each end of the locking bolt 421a facing the central axis is provided with a pressure block. The surface of the pressure block is provided with anti-slip texture. The adjustable telescopic structure 4 is used to adjust the installation size of the adjustable cleaning device 1, so that the adjustable cleaning device 1 can be used on reactors of different diameters, improving its applicability. After the installation is completed, the adjustable cleaning device 1 is fixed by the locking bolt 421a. The outer end of the locking bolt 421a is provided with a manual operation part for manual operation.

[0023] The base 2 has a through hole at its center. The driving device 5 includes a drive motor 50 and a controller 51. The controller 51 is electrically connected to the drive motor 50. The controller 51 has a power interface and multiple control buttons. The driving device 5 is used to drive the scraper 63 along the axis. The drive motor 50 is fixed in the through hole of the base 2 by screws. The controller 51 is located next to the drive motor 50. The drive end of the drive motor 50 passes through the through hole to the bottom of the base 2. A bearing is provided between the drive end and the through hole. The snap-fit ​​connection structure 7 includes at least two arrayed hooks 70 and at least two arrayed holes 71. The hooks 70 are located at the end of the drive end of the drive motor 50, and each hook 70 includes an elastic connecting part and a hook part located at the end of the elastic connecting part. The holes 71 are located on the spindle 60, and each hole 71 includes an insertion part into which the hooks 70 are inserted and a hole 71 part into which the hooks 70 are engaged and fixed during connection. The insertion part has a space for the hooks 70 to move when they are released. The snap-fit ​​connection structure 7 facilitates the quick assembly and disassembly of the spindle 60 and the drive component, thereby facilitating subsequent use or storage and improving storage convenience.

[0024] The drive end of the drive motor 50 is provided with a rectangular positioning post 500, and the end of the spindle 60 is provided with a rectangular positioning hole 600 for the rectangular positioning post 500 to be inserted. Both the end of the rectangular positioning post 500 and the rectangular positioning hole 600 are provided with guide surfaces. The rectangular positioning post 500 and the rectangular positioning hole 600 are used to ensure the stability of the connection.

[0025] The telescopic rod 61 includes a first support rod 610, which has a first sliding cavity 611. A second support rod 612, which moves along the first sliding cavity 611, is provided in the first sliding cavity 611. The first support rod 610 has a plurality of arrayed through holes 613. The end of the second support rod 612 has a top block assembly 614, which is locked in the through hole 613 after adjustment. Both the top block assembly 420 and the top block assembly 614 include a placement cavity, a spring, and a top block, which are provided in the first support rod 42 and the second support rod 612, respectively. The placement cavity has an opening, and the top block has a guide block that moves up and down in the placement cavity. The spring is provided at the tail end of the guide block. The diameter of the placement cavity is larger than the opening. The top block extends out or retracts from the opening. The telescopic rod 61 is used to quickly adjust according to the diameter of the reactor being cleaned, so that the adjustable cleaning device 1 can be used to clean round reactors of different sizes, improving applicability and reducing customization costs.

[0026] One end of one of the uprights 62 is connected to the end of the second support rod 612, and one end of the other upright is connected to the other end of the upright. Each splicing structure 8 includes a hook group 80 and a hole group 81. The hook group 80 is located at one end of the second support rod 612 and one end of the upright 62, and the hole group 81 is located at the other end of the upright 62. The hook group 80 includes two hooks arranged opposite each other, and the hole group 81 includes two holes arranged opposite each other. The hooks are respectively used to be inserted into the holes during assembly. Each hole has a space for the hooks to be pushed in when they are unhooked. Each hole has an opening for the hook ends to be engaged. The splicing structure 8 can be freely assembled to form uprights 62 of different sizes according to the depth of the reactor being cleaned, and can be combined with scrapers 63 to form scraper groups of different sizes, thereby improving the applicability of the adjustable cleaning device 1.

[0027] The scraper 63 is provided with a mounting part 630, the cross-section of which is a convex-shaped structure. The detachable connection 9 includes a slot 90 for inserting the mounting part 630. One end of the slot 90 is provided with a limiting block 91, and the other end of the slot 90 is provided with an insertion port 900. Two opposing inner walls of the insertion port 900 are each provided with an elastic sheet 92, preferably a metal elastic sheet. A gap is provided between the elastic sheets 92, and one end of each elastic sheet 92 is fixedly connected to the inner wall of the slot 90. The other end of each elastic sheet 92 has an opening. When the scraper 63 needs to be installed, after the mounting part 630 is inserted into the insertion port 900, the elastic force of the spring sheet returns, locking the mounting part 630 into the slot 90. The tail end of the mounting part 630 has a rounded or inclined surface for guiding disassembly, realizing the guiding and pressing function of the spring sheet. The base 2 is provided with two handles 21, which facilitate the holding of the adjustable cleaning device 1, thereby making it convenient to install during cleaning or disassemble after cleaning.

[0028] This invention utilizes an adjustable telescopic structure mounted on the base support, along with an adjustable-length telescopic rod and connectable uprights in the scraping mechanism. This allows for flexible and precise adjustment of the installation span and cleaning coverage (including diameter and depth), meeting the cleaning needs of various cylindrical polyurethane reactors of different sizes. This significantly improves versatility and effectively avoids the high costs associated with custom-designed cleaning devices for different reactors. By employing snap-fit ​​connections between the drive unit and the scraping mechanism, and between each upright, and a quick-assembly / disassembly structure consisting of slots and elastic plates between the scraper and the uprights, the entire device can be quickly assembled and disassembled. When not in use, it can be compactly stored, greatly saving storage space and facilitating transportation and maintenance. The rectangular positioning post at the drive end, in conjunction with the rectangular positioning hole on the main shaft, ensures the stability and reliability of power transmission, preventing slippage or shaking of the scraping mechanism during operation and guaranteeing smooth cleaning operation. The scraper is detachably fixed to the upright, allowing for flexible adjustment of its position and number according to the actual shape of the reactor and cleaning needs. It also facilitates easy replacement of worn scrapers, reducing long-term maintenance costs. The drive unit provides stable power throughout the cleaning process, ensuring thorough and efficient cleaning. Arc-shaped locking blocks and bolts securely fasten the device to the reactor inlet, enhancing stability and safety during operation. Handles on the base facilitate easy transport and installation.

[0029] This utility model is not limited to the above-described embodiments. Other adjustable cleaning devices for polyurethane reactors obtained by using the same or similar structures or devices as the above-described embodiments of this utility model are all within the protection scope of this utility model.

Claims

1. An adjustable cleaning device for a polyurethane reactor, characterized in that: The adjustable cleaning device includes a base with supports on its four sides for mounting on a polyurethane reactor. Each support has an adjustable telescopic structure. A driving device is located at the center of the base, and the driving device has a scraping mechanism. A snap-fit ​​connection structure is provided between the driving device and the scraping mechanism. The scraping mechanism includes a main shaft with multiple telescopic rods arranged in a circular array. Each end of the telescopic rod has at least two uprights. There are splicing structures between the uprights and the telescopic rods, and between the uprights themselves. Each upright also has a scraper, and the scraper is detachably connected to the upright.

2. The adjustable cleaning device for a polyurethane reactor according to claim 1, characterized in that: The adjustable telescopic structure includes support rods, each of which has a sliding cavity. A support rod is installed inside the sliding cavity and can move along the direction of the sliding cavity. Each support rod has multiple arrayed through holes. One end of the support rod is provided with a top block assembly that is locked in the through hole after adjustment. The other end of the support rod is provided with an arc-shaped locking block, each of which has a locking bolt that abuts against the outer wall.

3. The adjustable cleaning device for a polyurethane reactor according to claim 2, characterized in that: The base has a through hole at its center. The driving device includes a drive motor and a controller. The drive motor is fixed in the through hole of the base by screws. The controller is located next to the drive motor. The drive end of the drive motor passes through the through hole to the bottom of the base. A bearing is provided between the drive end and the through hole.

4. The adjustable cleaning device for a polyurethane reactor according to claim 3, characterized in that: The snap-fit ​​connection structure includes at least two arrayed hooks and at least two arrayed snap holes. The hooks are located at the end of the drive end of the drive motor and include an elastic connecting part and a hook part located at the end of the elastic connecting part. The snap holes are located on the spindle and include an insertion part for inserting the hook and a snap hole part for the hook to engage and fix during connection. The insertion part has a space for the hook to release during the release action.

5. The adjustable cleaning device for a polyurethane reactor according to claim 4, characterized in that: The drive end of the drive motor is provided with a rectangular positioning post, and the end of the spindle is provided with a rectangular positioning hole for inserting the rectangular positioning post. Both the end of the rectangular positioning post and the rectangular positioning hole are provided with guide surfaces.

6. The adjustable cleaning device for a polyurethane reactor according to claim 5, characterized in that: The telescopic rod includes a first support rod, the first support rod having a first sliding cavity, a second support rod that moves along the first sliding cavity inside the first sliding cavity, the first support rod having a plurality of arrayed through holes II, and the end of the second support rod having a top block assembly II that is locked in the through holes II after adjustment.

7. The adjustable cleaning device for a polyurethane reactor according to claim 6, characterized in that: One end of the upright is connected to the end of the second support rod, and one end of the other upright is connected to the other end of the upright. The splicing structure includes a hook group and a buckle hole group. The hook group is set at one end of the second support rod and one end of the upright, and the buckle hole group is set at the other end of the upright. The hook assembly includes two oppositely arranged hooks, and the buckle hole assembly includes two oppositely arranged buckle holes. The hooks are respectively used to be inserted into the buckle holes during assembly.

8. The adjustable cleaning device for a polyurethane reactor according to claim 7, characterized in that: The scraper is provided with a mounting part, the cross-section of which is a convex structure. The detachable connection includes a slot for inserting the mounting part. One end of the slot is provided with a limiting block, and the other end of the slot is provided with an insertion port. The two opposing inner walls of the insertion port are provided with elastic sheets.

9. The adjustable cleaning device for a polyurethane reactor according to claim 8, characterized in that: The base is equipped with two handles.

Images