A wall-breaking machine cutter head structure that is easy to disassemble and assemble

Abstract

The present invention discloses a wall-breaking machine cutter head structure that is easy to disassemble and assemble. In this case, the entire cutter head can be disassembled and assembled by setting a first locking nut. The setting of the pin puller assembly of the cutter group makes it easy to disassemble and assemble the cutter group by pulling the pin puller assembly upward or retracting it downward, without the need for additional tools, and the disassembly and assembly is more convenient and quick. Moreover, the cutter group and the cutter group fixing seat of the cutter head can be separated and connected by the pin puller assembly. When either the blade or the cutter group fixing seat is damaged, only the damaged part needs to be replaced, and the other part does not need to be disassembled and replaced, which can reduce material waste, is more environmentally friendly, and is conducive to cost saving. By setting a spring, it is convenient to reinstall the cutter group without reusing tools. The elasticity of the spring can be used to retract the pin puller assembly to the installation position and re-match and connect with the cutter group fixing seat, which has higher installation efficiency and is conducive to wide application in the market.

Description

Technical Field

[0001] The present invention relates to the technical field of wall breaking machines, and in particular to a wall breaking machine cutter head structure that is easy to assemble and disassemble. Background Art

[0002] A food processor is a device that breaks down the cell walls of fruits and vegetables before the stomach and intestines enter, promoting better digestion and absorption. The processor's blades break down food during operation using high-speed rotation. However, after use, the blades need to be cleaned. However, installing the blades in the processor makes cleaning inconvenient, requiring the entire blade assembly to be disassembled for cleaning and then reinstalled. Furthermore, both removal and installation require tools, making the entire process cumbersome and inefficient.

[0003] Chinese patent publication number CN208551478U discloses a detachable structure of a cup body and a knife assembly for a wall breaking machine, wherein the lower bottom surface of the cup body is provided with a limiting member for clamping the limiting part.

[0004] When disassembling the blade assembly, one only needs to remove the stopper first to remove the blade assembly from the mounting hole. When installing the blade assembly, the lower end of the blade holder is inserted into the mounting hole, and then the stopper is installed to limit the position of the stopper, thereby fixing the blade assembly, making disassembly and assembly convenient. However, when the blade of the above-mentioned wall-breaking machine is damaged, the entire blade assembly is usually removed and replaced, resulting in unnecessary waste of resources and being unfavorable for cost savings. In addition, the disassembly efficiency of the above-mentioned disassembly method is still low, which is not conducive to widespread application.

[0005] Therefore, how to overcome the above-mentioned defects has become an important issue to be solved urgently by those skilled in the art. Summary of the Invention

[0006] The present invention overcomes the deficiencies of the above-mentioned technologies and provides a wall-breaking machine cutter head structure that is easy to assemble and disassemble.

[0007] To achieve the above object, the present invention adopts the following technical solutions:

[0008] A wall-breaking machine cutter head structure that is easy to disassemble and assemble includes a cutter group 1 and a cutter group fixing seat 2. The cutter group 1 includes a cutter group shaft 11 that extends vertically and is hollow inside, a blade 12 connected to the cutter group shaft 11, and a pin pulling assembly 13 arranged inside the cutter group shaft 11 and capable of being separated from the cutter group fixing seat 2 when pulled upward / connected to the cutter group fixing seat 2 when retracted downward.

[0009] Preferably, it also includes a first locking nut 3 for locking the knife group fixing seat 2 on the wall breaking machine, and the knife group fixing seat 2 is connected to the first locking nut 3.

[0010] Preferably, the knife set 1 further comprises a spring 14 disposed inside the knife set shaft 11 for causing the pin pulling assembly 13 to automatically retract downward when no force is applied.

[0011] Preferably, the tool group fixing seat 2 includes a fixing seat shell 21, a bearing assembly 22, and a drive shaft 23. The bearing assembly 22 is connected to the inner wall surface of the fixing seat shell 21. One end of the drive shaft 23 is connected to the inside of the fixing seat shell 21 through the bearing assembly 22, and the other end is connected to the external motor; a first installation groove 231 is opened inside the drive shaft 23 for the pin pulling assembly 13 to be inserted into it.

[0012] Preferably, the uppermost end of the fixed seat shell 21 is provided with a first convex edge 211 protruding outward in the circumferential direction, and the lower surface of the first convex edge 211 is recessed upwardly with a limiting installation groove 2111, and a first sealing ring 24 is installed on the limiting installation groove 2111, and a second sealing ring 25 is provided between the outer side of the drive shaft 23 and the fixed seat shell 21.

[0013] Preferably, the pin pulling assembly 13 includes a pull rod 131, a slider structure 132, a sliding pin pressing piece 133 and a guide rail structure for the slider structure 132 to slide up and down along the pull rod 131, the pull rod 131 is recessed with a second mounting groove 138, and the slider structure 132 slides up and down along the groove surface of the second mounting groove 138 through the guide rail structure. The knife group shaft 11 is provided with a through hole 111 for a part of the slider structure 132 to pass through and out, and the inner wall of the knife group fixing seat 2 is recessed with a first clamping groove 137 for the slider structure 132 to engage when the slider structure 132 passes through the through hole 111. The pull rod 131 is fixedly connected to the sliding pin pressing piece 133, and the slider structure 132 retracts into the knife group shaft 11 when moving downward along the guide rail structure, and extends out of the knife group shaft 11 through the through hole 111 and engages with the first clamping groove 137 when moving upward along the guide rail structure.

[0014] Preferably, the guide rail structure includes a first guide rail 1351 protruding from the groove surface of the second mounting groove 138 for the slider structure 132 to slide up and down, and a second guide rail 1352 protruding from the sliding pin pressing plate 133 for the slider structure 132 to slide up and down; the first guide rail 1351 is two guide rails that are symmetrical along the axis of the pull rod 131 and extend obliquely from top to bottom toward the axis of the pull rod 131, and the second guide rail 1352 is two guide rails that are symmetrical along the axis of the pull rod 131 and extend obliquely from top to bottom toward the axis of the pull rod 131; the slider structure 132 is two sliders that are symmetrical along the axis of the pull rod 131 and are arranged in coordination with the guide rail structure, and the slider structure 132 is provided with a first guide groove 1323 arranged in coordination with the first guide rail 1351 and a second guide groove 1324 arranged in coordination with the second guide rail 1352.

[0015] Preferably, the pull rod 131 is provided with a rod head 1311, a first mounting portion 1312, and a second mounting portion 1313 from top to bottom for facilitating manual pulling of the pull rod 131. The first mounting portion 1312 is provided with the second mounting groove 138. The second mounting portion 1313 is for the spring 14 to be mounted thereon. One end of the spring 14 is connected to the bottom end of the first mounting portion 1312, and the other end is connected to the bottom end of the knife group shaft 11.

[0016] Preferably, the blade 12 is detachably connected to the knife group shaft 11 through a second locking nut 15, the outer wall of the knife group shaft 11 is provided with a second flange 112, the second locking nut 15 is provided with a third flange 151, and the blade 12 is clamped and detachably connected between the second flange 112 and the third flange 151.

[0017] Preferably, the knife group 1 can rotate with the knife group fixing seat 2 through an engaging structure, and the engaging structure includes a tooth 41 arranged on the outer wall of the knife group shaft 11 of the knife group 1, and a second slot 42 arranged on the knife group fixing seat 2 to cooperate with the tooth 41.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. In this case, the entire cutter head can be disassembled and assembled by setting the first locking nut. The setting of the pin puller assembly of the knife group makes it easy to disassemble and install the knife group by pulling the pin puller assembly upward or retracting it downward, without the need for additional tools, making disassembly and assembly more convenient and quick. Moreover, unlike the knife assembly of a traditional wall-breaking machine, the cutter head of this case, i.e., the knife group and the knife group fixing seat of the knife assembly, can be separated and connected by the pin puller assembly. When either the blade or the knife group fixing seat is damaged, only the damaged part needs to be replaced, and the other part does not need to be disassembled and replaced, which can reduce material waste, be more environmentally friendly, and help save costs. By setting the spring, it is convenient to reinstall the knife group without reusing tools. The elasticity of the spring can be used to retract the pin puller assembly to the installation position and re-match and connect with the knife group fixing seat, which has higher installation efficiency and is conducive to wide application in the market.

[0020] 2. In this case, the first convex edge of the fixed seat shell is set so that when it is installed in the wall-breaking machine, it can be stuck above the bottom of the wall-breaking machine cup as a protruding part; and the first sealing ring and the second sealing ring are set to play a waterproof role.

[0021] 3. The arrangement of the pull rod, slider structure, through hole, and first slot of the pin puller assembly in this case allows the slider structure to retract inward toward the center of symmetry when the pull rod is pulled upward, separating the slider structure from the first slot, thereby enabling the removal of the blade assembly and blade assembly fixing seat. Simultaneously, when the pull rod is inserted downward, the slider structure can extend outward and engage with the first slot, thereby enabling the reinstallation of the blade assembly and blade assembly fixing seat, making assembly and disassembly easy. The arrangement of the first guide rail, second guide rail, first guide slot, and second guide slot facilitates guiding and matching, thereby improving assembly and disassembly stability and ensuring the life of the blade head. The arrangement of the limiting space prevents the slider structure from slipping out and affecting disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the decomposed structure of the first embodiment of this case.

[0023] Figure 2 It is a structural diagram of the knife group fixing seat in this case.

[0024] Figure 3 yes Figure 2 AA cross-sectional view.

[0025] Figure 4 It is a sectional view of the main view of the knife assembly.

[0026] Figure 5 It is a structural diagram of the pin pulling assembly in this case.

[0027] Figure 6 This is a schematic diagram of the exploded structure of the knife set in this case.

[0028] Figure 7 It is a structural diagram of the second embodiment of this case.

[0029] Figure 8 This case Figure 7 BB cross-sectional view. DETAILED DESCRIPTION

[0030] The following examples further illustrate the features of the present invention and other related features to facilitate understanding by those skilled in the art:

[0031] Example 1

[0032] like Figures 1 to 6, a wall-breaking machine cutter head structure that is easy to disassemble and assemble, includes a knife group 1, a knife group fixing seat 2, and a first locking nut 3 for locking the knife group fixing seat 2 on the wall-breaking machine. The knife group 1 includes a knife group shaft 11 that extends vertically and is hollow inside, a blade 12 fixedly connected to the knife group shaft 11, a pin pulling assembly 13 arranged inside the knife group shaft 11 and capable of being separated from the knife group fixing seat 2 when pulled upward / connected to the knife group fixing seat 2 when retracted downward, and a spring 14 arranged inside the knife group shaft 11 for causing the pin pulling assembly 13 to automatically retract downward when no force is applied. The knife group fixing seat 2 is threadedly connected to the first locking nut 3.

[0033] As described above, the present invention can realize the disassembly and assembly of the entire cutter head by setting the first locking nut 3. The setting of the pin puller assembly 13 of the knife group 1 makes it easy to disassemble and install the knife group 1 by pulling the pin puller assembly 13 upward or retracting it downward, without the need for additional tools, making disassembly and assembly more convenient and quick. Moreover, unlike the knife assembly of a traditional wall-breaking machine, the cutter head of the present invention, i.e., the knife group 1 and the knife group fixing seat 2 of the knife assembly, can be separated and connected by the pin puller assembly 13. When either the blade 12 or the knife group fixing seat 2 is damaged, only the damaged part needs to be replaced, and the other part does not need to be disassembled and replaced, which can reduce material waste, is more environmentally friendly, and is also conducive to cost savings. By setting the spring 14, it is convenient to reinstall the knife group 1 without reusing tools. The elasticity of the spring 14 can be used to retract the pin puller assembly 13 to the installation position and re-match and connect with the knife group fixing seat 2, which is more efficient and conducive to widespread application in the market.

[0034] like Figure 2 and Figure 3 As shown, the tool assembly mount 2 comprises a mount housing 21, a bearing assembly 22 connected to the inner wall of the mount housing 21, and a drive shaft 23 coupled to the bearing assembly 22 and driven by an external motor. The upper portion of the drive shaft 23 is connected to the interior of the mount housing 21 via the bearing assembly 22, while the lower portion extends through the mount housing 21, exposed to the outside, to facilitate connection to the external motor. A first mounting slot 231 is defined within the drive shaft 23, into which the pin puller assembly 13 engages. Specifically, the bearing assembly 22 comprises, from top to bottom, a first bearing 221, a bearing support ring 222, and a second bearing 223, mounted sequentially within the mount housing 21. This facilitates mounting the drive shaft 23 within the mount housing 21 via the bearing assembly 22. The first mounting slot 231 connects the tool assembly 1 to the tool assembly mount 2, allowing subsequent rotation of the external motor to drive the drive shaft 23 and, consequently, the tool assembly 1.

[0035] like Figure 2 and Figure 3As shown, in a specific implementation, the uppermost end of the fixed seat housing 21 is provided with a first flange 211 protruding outward along the circumferential direction. The lower surface of the first flange 211 is provided with a position-limiting mounting groove 2111, and a first sealing ring 24 is mounted in the position-limiting mounting groove 2111. A second sealing ring 25 is provided between the outer side of the upper end of the drive shaft 23 and the fixed seat housing 21. In a specific implementation, a gasket 26 is provided between the second sealing ring 25 and the first bearing 221 to limit and secure the second sealing ring 25.

[0036] In this way, the first protrusion 211 is provided so that when installed in a wall-breaking machine, it can be stuck above the bottom of the wall-breaking machine cup as a protruding part; and the first sealing ring 24 and the second sealing ring 25 are provided to play a waterproof role.

[0037] like Figures 4 to 6 As shown, the pin extraction assembly 13 includes a vertically extending pull rod 131, a slider structure 132, a slider pressure plate 133, a fixing screw 134, and a guide rail structure along which the slider structure 132 slides up and down. A second mounting slot 138 is recessed in the center of the pull rod 131, along which the slider structure 132 slides up and down. The tool assembly shaft 11 includes a through hole 111 for the slider structure 132 to pass through. The inner wall of the drive shaft 23 / the first mounting slot 231 includes a first retaining groove 137, which engages the slider structure 132 when the slider structure 132 passes through the through hole 111. The pull rod 131 is connected to the slider pressure plate 133 via a fixing screw 134, which is used to press the slider structure 132. The groove surface of the second mounting slot 138 and the slider pressure plate 133 form a retaining space within which the slider pressure plate 133 is retained. The slider structure 132 retracts into the blade assembly shaft 11 during downward movement and extends out of the blade assembly shaft 11 through the through hole 111 during upward movement, engaging with the first engaging slot 137. In a specific implementation, the slider structure 132 can be a single guide rail extending downward toward the axis of the pull rod 131, or multiple parallel guide rails, or two guide rails symmetrically arranged along the axis. The slider structure 132 can be a single slider configured in conjunction with the guide rail, or two symmetrical sliders configured in conjunction with two guide rails symmetrically arranged along the axis.

[0038] As a preferred embodiment, Figures 4 to 6As shown, the guide rail structure includes a first guide rail 1351 protruding from the groove surface of the second mounting groove 138 for the slider structure 132 to slide up and down along, and a second guide rail 1352 protruding from the slider pressure plate 133 for the slider structure 132 to slide up and down along. The first guide rail 1351 is a pair of guide rails that are symmetrical about the axis of the pull rod 131 and extend obliquely from top to bottom toward the axis of the pull rod 131. The second guide rail 1352 is a pair of guide rails that are symmetrical about the axis of the pull rod 131 and extend obliquely from top to bottom toward the axis of the pull rod 131. The first guide rail 1351 and the second guide rail 1352 are arranged parallel to each other, respectively, between the front and back surfaces of the slider structure 132, so that the slider structure 132 can slide more stably. The slider structure 132 is two sliders that are symmetrical about the axis of the pull rod 131 and are arranged in conjunction with the guide rail structure. Each slider is provided with a clamping portion 1320 at the upper end that can pass through the through hole 111. The two sliders are a first slider 1321 and a second slider 1322. The slider structure 132 is provided with a first guide groove 1323 that cooperates with the first guide rail 1351, and a second guide groove 1324 that cooperates with the second guide rail 1352. The symmetrical arrangement of the two sliders ensures balanced force during sliding and allows them to engage with different portions of the first engaging groove 137, resulting in a more secure engagement. The arrangement of the first guide rail 1351, first guide groove 1323, second guide rail 1352, and second guide groove 1324 ensures a consistent sliding path for the slider structure 132, facilitating efficient disassembly.

[0039] As described above, the matching arrangement of the pull rod 131, the slider structure 132, the through hole 111 and the first card slot 137 of the pin pulling assembly 13 makes it possible for the slider structure 132 to retract inward in the direction of the symmetrical center when the pull rod 131 is pulled upward, so that the slider structure 132 is separated from the first card slot 137, thereby realizing the disassembly of the knife group 1 and the knife group fixing seat 2; at the same time, when the pull rod 131 is inserted back downward, the slider structure 132 can be extended outward and engaged with the first card slot 137, thereby realizing the reinstallation of the knife group 1 and the knife group fixing seat 2, and the disassembly and assembly are convenient. The first guide rail, the second guide rail 136, the first guide groove 1323 and the second guide groove 1324 are arranged so as to play a guiding role, which is beneficial to improving the stability of disassembly and assembly and ensuring the life of the cutter head. The setting of the limiting space is so as to prevent the slider structure 132 from slipping out and affecting disassembly.

[0040] like Figure 6As shown, in a specific embodiment, the lever 131 is sequentially configured from top to bottom with a rod head 1311, a first mounting portion 1312, and a second mounting portion 1313. The rod head 1311 has a larger diameter than the rod body, facilitating manual lifting of the lever 131. The first mounting portion 1312 is provided with a second mounting slot 138, and the second mounting portion 1313 accommodates the spring 14. One end of the spring 14 is connected to the bottom of the first mounting portion 1312, and the other end is connected to the bottom of the blade assembly shaft 11. This arrangement of the rod head 1311 facilitates manual removal of the blade assembly 1 by pulling up on the rod head 1311, facilitating assembly and removal while protecting the user's hand from scratches caused by the blade 12. The arrangement of the first mounting portion 1312 and the second mounting portion 1313 effectively utilizes the space within the lever 131, allowing the slider structure 132 and the spring 14 to be mounted separately. Furthermore, the structure is compact and space-saving. The spring 14 is connected to the first mounting portion 1312 so that the spring 14 is stretched when the pull rod 131 is pulled up, so that the pull rod 131 can be retracted by the rebound force of the spring 14 when the pull rod 131 is subsequently released, thereby realizing automatic installation of the knife group 1 and improving installation efficiency.

[0041] like Figure 4 As shown, a second locking nut 15 is threadedly connected to the outer wall of the blade shaft 11 for securing the blade 12. A second flange 112 is formed on the outer wall of the blade shaft 11, and a third flange 151 is formed on the second locking nut 15. The blade 12 is sandwiched and secured between the second flange 112 and the third flange 151. This simplifies assembly and disassembly of the blade 12, allowing for detachable connection and individual assembly and disassembly of the blade 12.

[0042] like Figure 6 As shown, the knife set 1 is able to rotate along with the knife set fixing base 2 through an engagement structure. The engagement structure includes teeth 41 provided on the outer wall of the knife set shaft 11 of the knife set 1 and second engaging grooves 42 provided on the drive shaft 23 of the knife set fixing base 2 and configured to cooperate with the teeth 41. This ensures that the knife set 1 does not slip when the drive shaft 23 rotates, thereby ensuring close rotation.

[0043] Example 2

[0044] like Figure 7 and Figure 8 As shown, a wall breaking machine includes a cup body 100 and a base 200. The bottom of the cup body 1 is detachably connected to the top of the base 2. A motor 300 for driving the drive shaft 23 is installed inside the base 200. The bottom of the cup body 1 is provided with the above-mentioned wall breaking machine blade structure.

[0045] As mentioned above, the specific disassembly and assembly process of the wall-breaking machine blade structure in this case is as follows:

[0046] Disassembly and assembly of the knife group:

[0047] When the knife group 1 needs to be removed for replacement or cleaning, the user pulls up the pull rod 131, and the slider structure 132 slides downward along the guide rail and retracts, and the slider structure 132 is separated from the first slot 137, so that the knife group 1 can be removed from the knife group fixing seat 2.

[0048] When the knife set 1 needs to be reinstalled, the user first pulls up the pull rod 131 to retract the slider structure 132, then inserts the knife set axis of the knife set 1 downward into the knife set fixing seat 2, and then releases the pull rod 131, so that the pull rod 131 retracts to the original position due to the rebound force of the spring 14. At this time, the slider structure 132 extends again to the first slot 137, so that the knife set fixing seat 2 is re-fixed together, thereby completing the installation of the knife set 1.

[0049] Disassembly and assembly of the entire wall breaking machine blade structure:

[0050] When the entire cutter head needs to be disassembled, disassembly and assembly can be achieved by unscrewing / retightening the first locking nut 3.

[0051] As mentioned above, this case protects a wall-breaking machine blade structure that is easy to disassemble and assemble. All technical solutions that are the same or similar to this case should be deemed to fall within the scope of protection of this case.

Claims

1. A wall-breaking machine cutter head structure that is easy to disassemble and assemble, characterized in that The utility model comprises a knife group, a knife group fixing seat, and a first locking nut for locking the knife group fixing seat on the wall breaking machine. The knife group comprises a knife group shaft extending vertically and having a hollow interior, a blade connected to the knife group shaft, a pin pulling component arranged inside the knife group shaft and capable of being separated from the knife group fixing seat when pulled upward and connected to the knife group fixing seat when retracted downward, and a spring arranged inside the knife group shaft for causing the pin pulling component to automatically retract downward when no force is applied. The knife group fixing seat is connected to the first locking nut; The guide rail structure comprises a first guide rail convexly provided on the groove surface of the second mounting groove for the slider structure to slide up and down, a first guide rail convexly provided on the slide pin pressing piece for the slider structure to slide up and down along the groove surface of the second mounting groove through the guide rail structure, and a through hole is provided on the inner wall of the knife group fixing seat for the slider structure to pass through and out of the through hole for the slider structure to engage therein when the slider structure passes through the through hole. The cam is connected with the second guide rail of the pull rod, and the cam is connected with the second guide rail by the second cam.

2. The wall-breaking machine cutter head structure that is easy to disassemble and assemble according to claim 1 is characterized in that The knife group fixing seat includes a fixing seat shell, a bearing assembly, and a drive shaft. The bearing assembly is connected to the inner wall surface of the fixing seat shell. One end of the drive shaft is connected to the inside of the fixing seat shell through the bearing assembly, and the other end is connected to the external motor. A first mounting groove is opened inside the drive shaft for the pin puller assembly to be inserted into it.

3. The wall-breaking machine cutter head structure that is easy to disassemble and assemble according to claim 2 is characterized in that The uppermost end of the fixed seat shell is provided with a first convex edge protruding outward along the circumferential direction, and the lower surface of the first convex edge is provided with a limit installation groove concave upward, a first sealing ring is installed on the limit installation groove, and a second sealing ring is provided between the outer side of the drive shaft and the fixed seat shell.

4. The wall-breaking machine cutter head structure that is easy to disassemble and assemble according to claim 1 is characterized in that The blade is detachably connected to the knife assembly shaft via a second locking nut, a second convex edge is protruding from the outer wall of the knife assembly shaft, a third convex edge is protruding from the second locking nut, and the blade is clamped and detachably connected between the second convex edge and the third convex edge.

5. The wall-breaking machine cutter head structure that is easy to disassemble and assemble according to claim 1 is characterized in that The knife group can rotate together with the knife group fixing seat through an engaging structure, and the engaging structure includes teeth arranged on the outer side wall of the knife group shaft of the knife group, and a second card groove arranged on the knife group fixing seat to cooperate with the teeth.

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