Cleaning scraper for chemical equipment
By designing a detachable mounting bracket and scraper assembly, combined with a tenon, slot, and locking pin structure, the problem of inconvenient scraper replacement in chemical equipment is solved, enabling quick disassembly and stable installation, and improving the scraper's service life and safety function.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUAIHUA WANGDA BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-05-15
AI Technical Summary
The existing chemical equipment scrapers are slow to disassemble and install during replacement, making replacement inconvenient.
The design features a detachable mounting bracket and scraper assembly, incorporating a snap-fit, slot, and locking pin structure to enable quick assembly and disassembly of the scraper assembly. The folded edges and locking pins further enhance installation stability.
It enables quick replacement and stable installation of the scraper, improves disassembly and assembly efficiency, and enhances the scraper's service life and safety.
Smart Images

Figure CN224237794U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of chemical equipment technology, specifically a cleaning scraper for chemical equipment. Background Technology
[0002] A reaction vessel is a common type of chemical equipment. To accelerate the chemical reaction inside the reaction vessel, a stirrer is usually installed inside. During the reaction, crystals will form on the wall of the reaction vessel. Some reaction vessels are equipped with a scraper on the stirrer to remove the crystals.
[0003] Normally, scrapers are connected to the agitator via a rotating shaft, rather than being directly fixed to the agitator. During the rotation of the agitator, the scraper moves around the shaft due to centrifugal force and contacts the reactor wall to scrape off crystals. This reduces the installation and manufacturing precision requirements of the scraper. However, scrapers wear down after prolonged use and need to be replaced when their service life is up. The problem is that the space inside the reactor is small, and it is usually necessary to remove the agitator and then loosen the screws holding the scraper in place with a wrench to remove it, which is very inconvenient. Therefore, a scraper that can solve the above problems and reduce the installation and disassembly time of the scraper is proposed. Utility Model Content
[0004] To address the above problems, this utility model provides a cleaning scraper for chemical equipment, which solves the problem of slow disassembly and installation speed during the replacement process of existing scrapers.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A cleaning scraper for chemical equipment includes a mounting bracket connected to a stirrer, on which a scraper assembly is detachably mounted. The scraper assembly includes a scraper holder and a scraper fixed together.
[0007] The mounting bracket is provided with a first extended side and a second extended side arranged in parallel to each other, and a third extended side arranged in parallel. The third extended side is arranged in pairs and is located between the first extended side and the second extended side. The first extended side, the second extended side and the third extended side form an installation space for mounting the tool holder.
[0008] The edges of the first, second, and third extended sides also have folded edges that secure the tool holder.
[0009] As a further improvement to the above solution, the width of the first extended side is narrower than the width of the second extended side, a first slot is provided on the first extended side, and a tenon that can be inserted into the first slot is provided on the tool holder.
[0010] As a further improvement to the above solution, a second slot is provided on the first extended side, and a clearance groove is provided on the tool holder that can overlap with the second slot. A locking pin is detachably provided on the second slot, and the locking pin extends into the clearance groove to lock the tool holder and the mounting bracket together.
[0011] As a further improvement to the above solution, the locking pin includes a support portion that extends into the clearance groove and the second slot and lifts the tool holder. A plug-in portion is provided on one side of the support portion, and the plug-in portion is inserted into a third slot provided on the first extended side.
[0012] A bending part is provided on the other side of the support part, and a limiting part is provided on the bending part to lock with the edge of the second slot. A handle is provided at the end of the bending part.
[0013] As a further improvement to the above solution, the scraper is provided with a first cutting edge, a second cutting edge, and a third cutting edge, and a partition groove is provided between the first cutting edge and the second cutting edge, and between the second cutting edge and the third cutting edge.
[0014] As a further improvement to the above solution, a reinforcing plate is also installed inside the scraper.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] By making the mounting bracket and scraper assembly detachable, the scraper assembly can be quickly removed when the scraper is replaced, improving disassembly and assembly efficiency. After the mounting bracket and scraper assembly are installed together, the blade holder can be clamped and fixed by the folded edges of the first, second, and third extended sides to improve the fixation effect of the scraper assembly.
[0017] The locking tabs and first slots improve the stability of the tool holder installation after the mounting bracket and tool holder are installed together. The locking pins further lock the tool holder and mounting bracket together. After removing the locking pins, the clearance slots on the tool holder make it easier to disassemble the tool holder and mounting bracket.
[0018] By setting a first cutting edge, a second cutting edge, and a third cutting edge on the scraper, the second and third cutting edges can participate in the scraping work after the first cutting edge is completely worn, serving as a backup and improving the safety function of the scraper. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 for Figure 1 Schematic diagram of the structure in direction A;
[0021] Figure 3 This is a schematic diagram of the exploded structure of this utility model;
[0022] Figure 4 for Figure 2 Schematic diagram of the cross-sectional structure in the middle BB direction;
[0023] Figure 5 for Figure 4 A magnified schematic diagram of the local structure at point C;
[0024] Figure 6 This is a schematic diagram of the tool holder structure;
[0025] Figure 7 This is a structural diagram of the mounting bracket.
[0026] In the diagram: 10. Mounting bracket; 101. First extended side; 102. Second extended side; 103. Third extended side; 104. Mounting space; 105. First slot; 106. Second slot; 107. Third slot; 11. Tool holder; 111. Locking tenon; 112. Clearance groove; 12. Scraper; 121. First cutting edge; 122. Second cutting edge; 123. Third cutting edge; 124. Dividing groove; 125. Reinforcing plate; 13. Locking pin; 131. Support part; 132. Insertion part; 133. Restriction part; 134. Hand-held part; 135. Bending part. Detailed Implementation
[0027] To enable those skilled in the art to better understand the technical solution, the present invention will be described in detail below with reference to the embodiments. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.
[0028] like Figure 1-7 As shown, the specific solution of this embodiment is: a cleaning scraper for chemical equipment, including a mounting frame 10 connected to a stirrer. The mounting frame 10 is specifically made of metal sheet. A scraper assembly is detachably mounted on the mounting frame 10. The scraper assembly includes a blade holder 11 and a scraper 12 fixed together.
[0029] For details, please refer to the instruction manual appendix. Figure 5 As shown, the mounting frame 10 is provided with a first extended side 101 and a second extended side 102 arranged in parallel with each other, and a third extended side 103 arranged in parallel. The first extended side 101 and the second extended side 102 are two long sides on the mounting frame 10. The third extended side 103 is arranged in pairs and is located between the first extended side 101 and the second extended side 102. The first extended side 101, the second extended side 102 and the third extended side 103 form a mounting space 104 for mounting the tool holder 11. The mounting space 104 is a cavity used to accommodate the tool holder 11.
[0030] The edges of the first extension side 101, the second extension side 102, and the third extension side 103 also have folded edges that clamp and fix the tool holder 11. The folded edges can limit the edge of the tool holder 11, preventing the tool holder 11 from falling out of the mounting bracket 10, thereby improving the installation stability between the two. By directly inserting the tool holder 11 into the installation space 104, the disassembly and assembly process can be greatly reduced, improving the efficiency of disassembly and assembly. At the same time, the folded edges on the first extension side 101, the second extension side 102, and the third extension side 103 can limit the installation and maintain stability, preventing it from falling out during use.
[0031] like Figure 1 , 3 As shown, in a preferred embodiment, the width of the first extended side 101 is narrower than the width of the second extended side 102. A first slot 105 is provided on the first extended side 101, and a tenon 111 that can be inserted into the first slot 105 is provided on the tool holder 11. By inserting the tenon 111 into the first slot 105, the mounting bracket 10 and the tool holder 11 can be further limited and fixed.
[0032] like Figure 4 , 5 As shown, in a preferred embodiment, the first extended side 101 is provided with a second slot 106, and the tool holder 11 is provided with a relief groove 112 that overlaps with the second slot 106. A locking pin 13 is detachably provided on the second slot 106. The locking pin 13 extends into the relief groove 112. The function of the locking pin 13 is also to lock the tool holder 11 and the mounting bracket 10 together to achieve a better fixing effect.
[0033] Specifically, in this embodiment, the locking pin 13 is integrally formed, and the locking pin 13 includes a support portion 131 that extends into the relief groove 112 and the second slot 106 and lifts up the tool holder 11, such as... Figure 5As shown, the support portion 131 extends into the clearance groove 112, specifically as an extended support platform, mainly supporting the top wall of the second cutting edge 122 to hold the tool holder 11 on the mounting bracket 10. The upper side of the support portion 131 has a insertion portion 132, which engages with the third slot 107 on the first extended side 101. The insertion portion 132 is specifically a pivot that can rotate within the range defined by the third slot 107. The lower side of the support portion 131 has a bent portion 135, which engages with the second slot 112. The limiting part 133 with edge clamping is specifically a limiting platform. The end of the bent part 135 is provided with a handle part 134, which is an outwardly protruding part. In actual use, first insert the plug part 132 into the third slot 107, and then press the bent part 135 inward to lock the limiting part 133 into the second slot 106. When disassembling, press the handle part 134 upward to deform the bent part 135, and the limiting part 133 can come out from the second slot 106, thereby removing the locking pin 13.
[0034] like Figure 4 As shown, in a preferred embodiment, the scraper 12 is provided with a first cutting edge 121, a second cutting edge 122, and a third cutting edge 123. A partition groove 124 is provided between the first cutting edge 121 and the second cutting edge 122, and between the second cutting edge 122 and the third cutting edge 123. The partition groove 124 facilitates the discharge of scraped crystals to both sides, preventing them from getting stuck between the two cutting edges. By providing different first cutting edges 121, second cutting edges 122, and third cutting edges 123, the remaining cutting edges can still maintain basic working requirements when one of the cutting edges cannot work, thus serving as a backup and improving the safety function of the scraper. In addition, a reinforcing plate 125 is also provided inside the scraper 12. The reinforcing plate 125 mainly supports the strength of the entire scraper 12, and when it is installed and fixed with the blade holder 11, the fixing screws on the scraper 12 are fixedly installed on the reinforcing plate 125.
[0035] It should be noted that, in this document, the terms "including," "comprising," 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. Specific examples have been used in this document to illustrate the principles and implementation methods of the present invention. These examples are merely for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be pointed out that, due to the limitations of written expression and the objective existence of infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the present invention to other situations without modification, should all be considered within the scope of protection of the present invention.
Claims
1. A cleaning scraper for chemical equipment, characterized in that, Includes a mounting bracket (10) connected to the mixer, on which a scraper assembly is detachably mounted, the scraper assembly including a blade holder (11) and a scraper (12) fixed together. The mounting bracket (10) is provided with a first extension side (101) and a second extension side (102) arranged in parallel with each other, and a third extension side (103) arranged in parallel. The third extension side (103) is arranged in pairs and is located between the first extension side (101) and the second extension side (102). The first extension side (101), the second extension side (102) and the third extension side (103) form an installation space (104) for mounting the tool holder (11). The edges of the first extension edge (101), the second extension edge (102), and the third extension edge (103) also have folded edges that clamp and fix the tool holder (11).
2. The cleaning scraper for chemical equipment according to claim 1, characterized in that, The width of the first extended side (101) is narrower than the width of the second extended side (102). The first extended side (101) is provided with a first slot (105), and the tool holder (11) is provided with a tenon (111) that can be inserted into the first slot (105).
3. A cleaning scraper for chemical equipment according to claim 1, characterized in that, A second slot (106) is provided on the first extended side (101), and a clearance groove (112) is provided on the tool holder (11) that can overlap with the second slot (106). A locking pin (13) is detachably provided on the second slot (106). The locking pin (13) extends into the clearance groove (112) to lock the tool holder (11) and the mounting bracket (10) together.
4. A cleaning scraper for chemical equipment according to claim 3, characterized in that, The locking pin (13) includes a support part (131) that extends into the relief groove (112) and the second slot (106) and lifts the tool holder (11). A plug-in part (132) is provided on one side of the support part (131), and the plug-in part (132) is inserted into the third slot (107) provided on the first extension side (101). A bending part (135) is provided on the other side of the support part (131). A limiting part (133) that is locked to the edge of the second slot (106) is provided on the bending part (135). A hand-held part (134) is provided at the end of the bending part (135).
5. A cleaning scraper for chemical equipment according to claim 1, characterized in that, The scraper (12) is provided with a first cutting edge (121), a second cutting edge (122) and a third cutting edge (123), and a partition groove (124) is provided between the first cutting edge (121) and the second cutting edge (122), and between the second cutting edge (122) and the third cutting edge (123).
6. A cleaning scraper for chemical equipment according to claim 1, characterized in that, The scraper (12) is also equipped with a reinforcing plate (125).