Waste transmission device for kitchen waste processing equipment

Abstract

This invention relates to the field of solid waste treatment technology, and in particular to a waste conveying device for kitchen waste treatment equipment. The conveying chain in this design consists of an outer chain plate, an inner chain plate, and a chain sleeve, and is connected to a filter plate body via connecting accessories to form a conveying mesh chain. The conveying mesh chain is connected to a first drive sprocket and a second drive sprocket; that is, the drive shaft drives the first drive sprocket to rotate, thereby driving the conveying mesh chain to operate. Regarding the conveying mesh chain in this design, when it needs to be dismantled, it is not necessary to remove the first and second sleeves connected to it; that is, no overall dismantling is required. Simply release the fixing of the filter plate body and the chain by the connecting accessories and the limiting accessories, i.e., release the connection of one pair of adjacent filter plates, and then the entire conveying mesh chain can be removed. This saves maintenance time and improves the efficiency of kitchen waste conveying.

Description

Technical Field

[0001] This invention relates to the field of solid waste treatment technology, and in particular to a waste conveying device for kitchen waste treatment equipment. Background Technology

[0002] Food waste is the most significant type of food waste, including food processing scraps and leftovers from schools, households, canteens, and the catering industry. Its composition is complex, mainly consisting of a mixture of oil, water, fruit peels, vegetables, rice, flour, fish, meat, bones, as well as waste tableware, plastics, and paper towels. If food waste is not treated promptly, it will become sour and smelly, causing environmental pollution. When processing food waste, it is necessary to first crush the waste and then perform solid-liquid separation. This facilitates the classification and processing of different types of waste and makes transportation and recycling easier.

[0003] In existing technologies for conveying and processing food waste, to separate as much moisture as possible from the waste during transport, the conveying device is generally a conveyor chain with a filter component. Typically, a conveyor shaft drives a conveyor sprocket at one end, thus rotating the entire conveyor chain. However, when the conveyor chain needs maintenance after prolonged use, it usually requires complete disassembly. Firstly, the drive shaft is generally fixed to the conveyor sprocket, making disassembly and maintenance of the sprocket inconvenient. Secondly, disassembling and maintaining the conveyor chain typically requires removing both conveyor sprockets at both ends, then taking the entire chain out, and finally removing the conveyor chain itself – a very cumbersome process that negatively impacts the efficiency of food waste treatment.

[0004] Therefore, this invention proposes a waste conveying device for kitchen waste treatment equipment to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a waste conveying device for kitchen waste treatment equipment to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a waste conveying device for kitchen waste treatment equipment, comprising a first sleeve, a second sleeve, a transmission assembly, transmission accessories, and a filter conveying chain assembly; connecting rods are symmetrically fixedly arranged on the side wall of the first sleeve, and the other end of the connecting rods is fixedly arranged on the side wall of the second sleeve; the first sleeve is connected to the transmission assembly, the second sleeve is connected to the transmission accessories, and both the transmission assembly and the transmission accessories are connected to the filter conveying chain assembly, wherein the filter conveying chain assembly conveys kitchen waste.

[0007] Preferably, the transmission assembly includes a first sealed bearing, a first transmission sprocket, a first insert sleeve, a spacer sleeve, a first fixing member, a hexagonal shaft, a sleeve shaft member, and a transmission shaft; the first sealed bearing is symmetrically arranged at the opening positions at both ends of the first sleeve, and a first insert sleeve is fixedly provided at one end of the first transmission sprocket, and the first insert sleeve is adapted to be inserted into the inner ring of the first sealed bearing.

[0008] Preferably, the hexagonal shaft is inserted into the first insertion sleeve, and sleeve shafts are symmetrically arranged at both ends of the hexagonal shaft. A drive shaft is fixedly arranged at one end of one of the sleeve shafts. A spacer sleeve is sleeved on the sleeve shaft, and the first fixing member is sleeved on the sleeve shaft.

[0009] Preferably, the transmission component includes a second sealed bearing, a second transmission sprocket, a second insert sleeve, an auxiliary slot, a second fixing member, and a support pin; the second sealed bearing is symmetrically arranged at the opening positions at both ends of the second sleeve, and a second insert sleeve is fixedly arranged on one side of the second transmission sprocket, the second insert sleeve being adapted to be inserted into the inner ring of the second sealed bearing.

[0010] Preferably, an auxiliary slot is provided at the center of the other side of the second transmission sprocket, and a support pin is fixedly provided at the center of one side of the auxiliary slot, with one end of the support pin being adapted to be inserted into the auxiliary slot.

[0011] Preferably, the filter conveyor chain assembly includes a filter plate body, a docking protrusion, a docking recess, a docking sleeve, an outer chain plate, an inner chain plate, a chain sleeve, connecting accessories, and limiting accessories; the filter plate body has a docking protrusion on one side and a docking recess on the other side, and a docking sleeve is provided at the end of the docking protrusion, and the filter plate body also has a docking sleeve at the end of the side with the docking recess.

[0012] Preferably, the outer chain plate, the inner chain plate, and the chain sleeve form a transmission chain, and the transmission chain is connected to the filter plate body through a connecting fitting.

[0013] Preferably, the connecting accessories include a connecting pin, a limiting disc, a receiving groove, a first auxiliary ball, a through hole, a limiting cover, a first auxiliary sleeve groove, a connecting screw groove, and a connecting screw; a limiting disc is fixedly provided at one end of the connecting pin, the limiting disc has symmetrically arranged through holes, and the side wall of the limiting disc connected to the connecting pin is provided with receiving grooves at equal intervals, and the receiving grooves contain the first auxiliary ball. The receiving grooves are arranged in a ring at equal intervals on the limiting disc. The limiting cover is provided with first auxiliary sleeve grooves at equal intervals, and the first auxiliary sleeve grooves and the receiving grooves are arranged in corresponding positions and have the same number of sets. A connecting screw groove is symmetrically provided on one side of the limiting cover. The limiting cover and the limiting disc are fitted together and connected and fixed by the connecting screws.

[0014] Preferably, the other end of the connecting pin is provided with a limiting accessory, which includes a connecting thread, a fastening groove, a limiting collar, a threaded cavity, a second auxiliary groove, a second auxiliary ball, a limiting cover, a threaded protrusion, and an annular groove. The connecting thread is located on the side wall of one end of the connecting pin, and a fastening groove is also provided at the location of the connecting thread. The fastening groove is annular. The limiting collar is sleeved on the connecting pin, and one end of the limiting collar is provided with a threaded cavity. The threaded cavity is provided with second auxiliary grooves at equal intervals, and a second auxiliary ball is placed in the second auxiliary groove. The limiting cover is sleeved on the connecting pin, and one end of the limiting cover is fixedly provided with a threaded protrusion. The threaded protrusion is threadedly connected to the threaded cavity, and the end face of the threaded protrusion is provided with an annular groove.

[0015] Preferably, the limiting collar is limited by a fastening structure, which includes an internal threaded fastening cap, a threaded through hole, a rotating auxiliary ridge, and a locking screw. The internal threaded fastening cap is threadedly connected to the connecting thread on one side wall of the connecting pin, and the rotating auxiliary ridge is symmetrically fixed on the outer side wall of the internal threaded fastening cap. The internal threaded fastening cap has a threaded through hole, which is threadedly connected to the locking screw. One end of the locking screw is engaged with a fastening groove.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The waste conveying device for food waste treatment equipment designed in this scheme includes a first sleeve, a second sleeve, a transmission assembly, transmission accessories, and a filter conveyor chain assembly. Connecting rods are symmetrically fixed to the side walls of the first sleeve, with the other end of each connecting rod fixed to the side wall of the second sleeve. The first sleeve is connected to the transmission assembly, and the second sleeve is connected to the transmission accessories. Both the transmission assembly and the transmission accessories are connected to the filter conveyor chain assembly, which conveys the food waste. The conveyor chain in this scheme consists of an outer chain plate, an inner chain plate, and a chain sleeve, and is connected to the filter plate body via connecting accessories to form a conveyor chain. The conveyor chain is connected to the first and second drive sprockets. The drive shaft drives the first drive sprocket to rotate, which in turn drives the conveyor chain to operate and achieve its conveying function. Furthermore, regarding the conveyor chain in this solution, when it needs to be dismantled, it is not necessary to remove the first and second sleeves connected to it, i.e., no overall dismantling is required. When the conveyor chain needs to be dismantled as a whole, simply release the fixing accessories and limiting accessories from the filter plates and chain, i.e., release the connection of one pair of adjacent filter plates, and then the entire conveyor chain can be removed. This saves maintenance time and improves the efficiency of food waste conveying. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the left side of the transmission device structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the transmission device structure and connection on the right side of the present invention;

[0020] Figure 3 This is a schematic diagram showing the structural connection between the first sleeve, the second sleeve, the connecting rod, the transmission assembly, and the transmission accessories of the present invention.

[0021] Figure 4 This is an exploded view of the structural connection between the first sleeve, the second sleeve, the connecting rod, the transmission assembly, and the transmission accessories of the present invention.

[0022] Figure 5 for Figure 4 Enlarged schematic diagram of the structural connection at point A;

[0023] Figure 6 for Figure 4 Enlarged schematic diagram of the structural connection at point B;

[0024] Figure 7 This is a top view of the filter plate structure connection of the present invention;

[0025] Figure 8 This is a top view of the filter plate structure connection of the present invention;

[0026] Figure 9 This is a schematic diagram on the right side showing the connection between the connecting accessory and the limiting accessory structure of the present invention;

[0027] Figure 10 for Figure 9 Enlarged schematic diagram of the structural connection at point C;

[0028] Figure 11 for Figure 9 Enlarged schematic diagram of the structural connection at point D;

[0029] Figure 12 This is a schematic diagram of the connection between the connecting accessory and the limiting accessory of the present invention on the left side;

[0030] Figure 13 for Figure 12 Enlarged schematic diagram of the structural connection at point E in the middle;

[0031] Figure 14 for Figure 12 Enlarged schematic diagram of the structural connection at point F.

[0032] In the diagram: First sleeve 1, Second sleeve 2, Connecting rod 3, First sealed bearing 401, First transmission sprocket 402, First insertion sleeve 403, Spacer sleeve 404, First fixing member 405, Hexagonal shaft 406, Sleeve shaft 407, Transmission shaft 408, Second sealed bearing 501, Second transmission sprocket 502, Second insertion sleeve 503, Auxiliary slot 504, Second fixing member 505, Support pin 506, Filter plate 601, Connecting protrusion 602, Connecting recess 603, Connecting sleeve 604, Outer chain plate 605, Inner chain plate 606, Chain The components include: sleeve 607, connecting pin 701, limiting disc 702, receiving groove 703, first auxiliary ball 704, through hole 705, limiting cover 706, first auxiliary sleeve groove 707, connecting screw groove 708, connecting screw 709, connecting thread 801, fastening slot 802, limiting collar 803, threaded cavity 804, second auxiliary sleeve groove 805, second auxiliary ball 806, limiting cover 807, threaded protrusion 808, annular groove 809, internal thread fastening cap 901, threaded through hole 902, rotating auxiliary protrusion 903, and locking screw 904. Detailed Implementation

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below. All other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the present invention.

[0034] Example 1: Please refer to Figures 1-14A waste conveying device for food waste treatment equipment includes a first sleeve 1, a second sleeve 2, a transmission assembly, transmission accessories, and a filter conveying chain assembly. Connecting rods 3 are symmetrically fixed to the side wall of the first sleeve 1, and the other end of the connecting rods 3 is fixed to the side wall of the second sleeve 2. The first sleeve 1 is connected to the transmission assembly, the second sleeve 2 is connected to the transmission accessories, and both the transmission assembly and the transmission accessories are connected to the filter conveying chain assembly, which conveys the food waste.

[0035] The conveyor chain in this solution consists of an outer chain plate 605, an inner chain plate 606, and a chain sleeve 607. It is connected to the filter plate body 601 via connecting accessories to form a conveyor chain. The conveyor chain is connected to the first drive sprocket 402 and the second drive sprocket 502. Specifically, the drive shaft 408 drives the first drive sprocket 402 to rotate, thereby driving the conveyor chain to operate and achieve its conveying function. The first sealed bearing 401 in the transmission assembly is symmetrically arranged at the openings at both ends of the first sleeve 1. A first insertion cylinder 403 is fixedly installed at one end of the first drive sprocket 402, and the first insertion cylinder 403 is fitted and inserted into the inner ring of the first sealed bearing 401. A hexagonal shaft 406 is inserted into the first insertion cylinder 403, and the hexagonal shaft... The shaft body 406 has symmetrically arranged sleeve shaft parts 407 at both ends, and a drive shaft 408 is fixedly arranged at one end of one of the sleeve shaft parts 407. A spacer sleeve 404 is sleeved on the sleeve shaft part 407. A first fixing member 405 is sleeved on the sleeve shaft part 407. The second sealing bearing 501 in the transmission accessories is symmetrically arranged at the cylinder opening positions at both ends of the second sleeve 2. A second insertion cylinder 503 is fixedly arranged on one side of the second transmission sprocket 502. The second insertion cylinder 503 is adapted to be inserted into the inner ring of the second sealing bearing 501. An auxiliary slot 504 is arranged at the center position of the other side of the second transmission sprocket 502. A support pin 506 is fixedly arranged at the center position of one side of the auxiliary slot 504. One end of the support pin 506 is adapted to be inserted into the auxiliary slot 504.

[0036] Regarding the conveyor chain setup in this solution, when it needs to be dismantled, it is not necessary to remove the first sleeve 1 and the second sleeve 2 connected to it; that is, no overall dismantling is required. When the conveyor chain needs to be dismantled as a whole, simply release the fixing of the connecting accessories and limiting accessories to the filter plate 601 and the chain. Specifically, release the connection of one pair of adjacent filter plates 601, and then the entire conveyor chain can be removed. The filter plate 601 in the filter conveyor chain assembly has a mating protrusion 602 on one side and a mating recess 603 on the other side. A mating sleeve 604 is provided at the end of the mating protrusion 602, and a mating sleeve 604 is also provided at the end of the filter plate 601 on the side with the mating recess 603. The outer chain plate 605, the inner chain plate 606, and the chain sleeve 607 form a transmission system. The chain and the transmission chain are connected to the filter plate 601 through the provided connecting accessories. One end of the connecting pin 701 in the connecting accessories is fixedly provided with a limiting disc 702. The limiting disc 702 has symmetrically provided through holes 705. The side wall of the end where the limiting disc 702 is connected to the connecting pin 701 is provided with equidistant receiving grooves 703. The receiving grooves 703 are placed in the receiving grooves 703. The receiving grooves 703 are arranged in a ring at equal intervals on the limiting disc 702. The limiting cover 706 is provided with equidistantly provided first auxiliary sleeve grooves 707. The first auxiliary sleeve grooves 707 and the receiving grooves 703 are positioned correspondingly and have the same number of sets. One side of the limiting cover 706 is symmetrically provided with connecting screw grooves 708. The limiting cover 706 and the limiting disc 702 are fitted together and connected and fixed by the provided connecting screws 709.

[0037] To limit the connection between the filter plate 601 and the drive chain, this solution uses a limiting accessory at the other end of the connecting pin 701 to cooperate with the connecting accessory. The limiting accessory has a connecting thread 801 located on the side wall of one end of the connecting pin 701, and a fastening groove 802 is also provided at the location of the connecting thread 801. The fastening groove 802 is annular. A limiting collar 803 is sleeved on the connecting pin 701, and one end of the limiting collar 803 has a threaded groove 804. Second auxiliary grooves 805 are evenly spaced within the threaded grooves 804, and second auxiliary balls 806 are placed in the second auxiliary grooves 805. A limiting cover 807 is sleeved on the connecting pin 701, and the limiting cover 807... One end is fixedly provided with a threaded protrusion 808, which is threadedly connected to the threaded groove 804. The end face of the threaded protrusion 808 is provided with an annular groove 809. The connecting pin 701 passes through the outer chain plate 605, the inner chain plate 606, the chain sleeve 607, and the inner chain plate 606 and the outer chain plate 605 at the other end of the chain sleeve 607 in sequence. Then it passes through the mating sleeve 604 in the filter plate body 601. Finally, it passes through the outer chain plate 605, the inner chain plate 606, and the chain sleeve 607 on the other side of the filter plate body 601, and tightens the connecting pin 701 so that the limiting disc 702 at one end of the connecting pin 701 limits the outer chain plate 605 on one side of the transmission chain. Then the limiting accessories are installed.

[0038] To improve its stability, this solution uses a fastening structure for limiting and stabilizing. Specifically, the internal threaded fastening cap 901 in the fastening structure is threadedly connected to the connecting thread 801 on one side wall of the connecting pin 701. The outer side wall of the internal threaded fastening cap 901 is symmetrically equipped with rotating auxiliary protrusions 903. The internal threaded fastening cap 901 has a threaded through hole 902, which is threadedly connected to a locking screw 904. The locking screw 904... One end is fitted and snapped into the fastening slot 802; that is, the internal thread fastening cap 901 is threadedly connected to the connecting thread 801 on the side wall of one end of the connecting pin 701, and after the internal thread fastening cap 901 is tightened, the threaded through hole 902 in the internal thread fastening cap 901 is aligned with the slot of the fastening slot 802. Then, the locking screw 904 is threadedly connected to the threaded through hole 902, so that one end of the locking screw 904 is snapped into the fastening slot 802.

[0039] When disassembling the connecting pin 701, the first step is to release the limiting mechanism of the fastening structure. This involves first releasing the lock on the internal thread fastening cap 901 by rotating the locking screw 904, causing one end of the locking screw 904 to separate from the fastening slot 802, thereby releasing the lock on the internal thread fastening cap 901. Then, rotate the internal thread fastening cap 901 to release the limiting collar 803. After that, remove the limiting collar 803 and finally pull out the connecting pin 701. At this point, the connection between the two adjacent filter plates 601 is released, and the conveyor belt can be disassembled. The operation is convenient.

[0040] If it is necessary to disassemble or replace a section or part of the filter plate 601, it is only necessary to disassemble the connecting pin 701 connected to the corresponding filter plate 601, which makes the maintenance work more flexible. In this solution, the use of the limiting disc 702 and the limiting collar 803, through the setting of the first auxiliary ball 704 and the second auxiliary ball 806, also has a corresponding friction protection effect on the outer chain plate 605 during transmission, thereby improving its service life.

[0041] To further improve the maintenance of the conveyor chain, save maintenance time, and meet the needs of food waste conveying, this solution uses connecting and limiting accessories between each pair of adjacent filter plates 601. This allows for targeted replacement of a specific section or filter plate 601 during maintenance, making replacement convenient. Furthermore, compared to the traditional solution with only one disconnectable connector, this solution eliminates the need to spend time searching for the appropriate disconnectable connector. While existing conveyor chains typically have a disconnectable connector for easy replacement, locating it usually requires time. Therefore, this solution offers greater operational flexibility.

[0042] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A waste conveying device for kitchen waste treatment equipment, characterized in that: It includes a first sleeve (1), a second sleeve (2), a transmission assembly, a transmission accessory, and a filter conveying chain assembly; the first sleeve (1) has a connecting rod (3) symmetrically fixed on its side wall, and the other end of the connecting rod (3) is fixed on the side wall of the second sleeve (2); the first sleeve (1) is connected to the transmission assembly, the second sleeve (2) is connected to the transmission accessory, and both the transmission assembly and the transmission accessory are connected to the filter conveying chain assembly, which conveys kitchen waste; The transmission components include a second sealed bearing (501), a second transmission sprocket (502), a second insert sleeve (503), an auxiliary slot (504), a second fixing member (505), and a support pin (506); the second sealed bearing (501) is symmetrically arranged at the opening positions at both ends of the second sleeve (2), and a second insert sleeve (503) is fixedly arranged on one side of the second transmission sprocket (502), and the second insert sleeve (503) is adapted to be inserted into the inner ring of the second sealed bearing (501); The filter conveyor chain assembly includes a filter plate body (601), a docking protrusion (602), a docking recess (603), a docking sleeve (604), an outer chain plate (605), an inner chain plate (606), a chain sleeve (607), connecting accessories, and limiting accessories; the filter plate body (601) is provided with a docking protrusion (602) on one side and a docking recess (603) on the other side, and a docking sleeve (604) is provided at the end of the docking protrusion (602), and a docking sleeve (604) is also provided at the end of the filter plate body (601) on the side where the docking recess (603) is provided; The connecting accessories include a connecting pin (701), a limiting disc (702), a receiving groove (703), a first auxiliary ball bearing (704), a through hole (705), a limiting cover plate (706), a first auxiliary sleeve groove (707), a connecting screw groove (708), and a connecting screw (709); one end of the connecting pin (701) is fixedly provided with a limiting disc (702), the limiting disc (702) is symmetrically provided with through holes (705), and the side wall of the limiting disc (702) connected to the connecting pin (701) is provided with receiving grooves (703) at equal intervals. The receiving groove (703) contains a first auxiliary ball (704). The receiving groove (703) is arranged in a ring at equal intervals on the limiting disc (702). The limiting cover (706) is provided with a first auxiliary sleeve groove (707) at equal intervals. The first auxiliary sleeve groove (707) and the receiving groove (703) are positioned in the same way and have the same number of sets. The limiting cover (706) is provided with a connecting screw groove (708) on one side. The limiting cover (706) and the limiting disc (702) are fitted together and connected and fixed by the connecting screw (709).

2. The waste conveying device for kitchen waste treatment equipment according to claim 1, characterized in that: The transmission assembly includes a first sealed bearing (401), a first transmission sprocket (402), a first insert sleeve (403), a spacer sleeve (404), a first fixing member (405), a hexagonal shaft (406), a sleeve shaft member (407), and a transmission shaft (408). The first sealed bearing (401) is symmetrically arranged at the opening positions at both ends of the first sleeve (1). One end of the first transmission sprocket (402) is fixedly provided with the first insert sleeve (403), and the first insert sleeve (403) is adapted to be inserted into the inner ring of the first sealed bearing (401).

3. The waste conveying device for kitchen waste treatment equipment according to claim 2, characterized in that: The hexagonal shaft (406) is inserted into the first insertion sleeve (403), and the two ends of the hexagonal shaft (406) are symmetrically provided with sleeve shafts (407), and one end of one of the sleeve shafts (407) is fixedly provided with a drive shaft (408). A spacer sleeve (404) is sleeved on the sleeve shaft (407), and the first fixing member (405) is sleeved on the sleeve shaft (407).

4. The waste conveying device for kitchen waste treatment equipment according to claim 1, characterized in that: An auxiliary slot (504) is provided at the center of the other side of the second transmission sprocket (502). A support pin (506) is fixedly provided at the center of one side of the auxiliary slot (504). One end of the support pin (506) is adapted to be inserted into the auxiliary slot (504).

5. The waste conveying device for kitchen waste treatment equipment according to claim 1, characterized in that: The outer chain plate (605), the inner chain plate (606), and the chain sleeve (607) form a transmission chain, and the transmission chain is connected to the filter plate body (601) through the provided connecting accessories.

6. The waste conveying device for kitchen waste treatment equipment according to claim 1, characterized in that: The other end of the connecting pin (701) is provided with a limiting accessory, which includes a connecting thread (801), a fastening groove (802), a limiting collar (803), a threaded cavity (804), a second auxiliary groove (805), a second auxiliary ball (806), a limiting cover (807), a threaded protrusion (808), and an annular groove (809); the connecting thread (801) is located on the side wall of one end of the connecting pin (701), and a fastening groove (802) is also provided at the location where the connecting thread (801) is located. The fastening groove (802) is annular, and the limiting collar (803) is... 03) The sleeve is set on the connecting pin (701), and one end of the limiting collar (803) is provided with a threaded groove cavity (804). The threaded groove cavity (804) is provided with a second auxiliary sleeve groove (805) at equal intervals, and a second auxiliary ball (806) is placed in the second auxiliary sleeve groove (805). The limiting cover (807) is sleeved on the connecting pin (701), and one end of the limiting cover (807) is fixedly provided with a threaded protrusion (808). The threaded protrusion (808) is threadedly connected to the threaded groove cavity (804), and the end face of the threaded protrusion (808) is provided with an annular groove (809).

7. The waste conveying device for kitchen waste treatment equipment according to claim 6, characterized in that: The limiting collar (803) is limited by a fastening structure, which includes an internal thread fastening cap (901), a threaded through hole (902), a rotating auxiliary protrusion (903), and a locking screw (904). The internal thread fastening cap (901) is threadedly connected to the connecting thread (801) on one side wall of the connecting pin (701), and the rotating auxiliary protrusion (903) is symmetrically fixed on the outer side wall of the internal thread fastening cap (901). The internal thread fastening cap (901) is provided with a threaded through hole (902), and the threaded through hole (902) is threadedly connected to the locking screw (904). One end of the locking screw (904) is fitted and engaged with the fastening slot (802).

Images