Cement mortar vibration table with easily cleaned table

Abstract

This utility model relates to the field of cement mortar vibration table technology, specifically a cement mortar vibration table with an easy-to-clean surface. It includes a base, with the inner wall near the top of the base rotatably connected to the outer walls of the vibration component at both ends. Initially, the scraper is located on the far left and the baffle is on the far top. After cement mortar is injected into the mold, rotating the adjustment knob drives the adjustment rod to rotate. The adjustment rod, through a thread, drives the connecting plate and the baffle to descend along the guide rod. Simultaneously, the first bevel gear drives the transmission rod to rotate through the second bevel gear, thereby causing the transmission plate and scraper to move along the slide groove to the far right under the action of the slider. After vibration, rotating the adjustment knob in the opposite direction moves the baffle upward to release the lock. At the same time, the scraper moves from the left side of the far right box of the vibration table body, discharging the cement mortar spilled during vibration from the leftmost cleaning trough, ensuring a clean surface and avoiding impact on the next test, thus facilitating use.

Description

Technical Field

[0001] This utility model relates to the technical field of cement mortar vibration table, specifically a cement mortar vibration table with an easy-to-clean surface. Background Technology

[0002] In concrete production and testing, the cement mortar vibrating table is a very important piece of equipment. It is mainly used to prepare standard cement mortar specimens, which are then used for various performance tests, such as compressive strength and flexural strength.

[0003] Currently, most cement mortar vibrating tables on the market may spill mortar from the mold during the test vibration process, causing mortar to accumulate on the vibrating table and making it difficult to clean, which brings inconvenience to users. Utility Model Content

[0004] The purpose of this utility model is to provide a cement mortar compaction table that facilitates cleaning of the countertop, thereby solving the problem mentioned in the background art of the inconvenience of cleaning up the accumulated and spilled mortar on the compaction table. To achieve the above objective, this utility model provides the following technical solution: a cement mortar compaction table that facilitates cleaning of the countertop, comprising a base, wherein the inner wall of the base near the top is rotatably connected to the outer wall of the compaction member away from both ends, the bottom of the compaction member near the right side is fixedly connected to the top of the driving member, the bottom of the driving member is fixedly connected to the top of the base near the right side, and the right side of the compaction member is fixedly welded to the left side of the limiting member.

[0005] The outer wall of the limiting member is engaged with the outer wall of the cleaning member, and the bottom of the cleaning member is slidably connected with the inner bottom wall of the vibrating member. The cleaning member is composed of a second bevel gear, a transmission rod, a second limiting ring, a transmission plate, a slider, and a scraper.

[0006] Preferably, the base consists of a base, a collection box, and a support platform, with the top of the base near the center being fixedly connected to the bottom of the collection box, and the top of the base near the left side being fixedly connected to the bottom of the support platform.

[0007] Preferably, the vibratory compaction component includes a limiting rod, a rocker arm, a vibratory compaction platform body, a sliding groove, a rotating hole, a cleaning groove, a connecting rod, a placement plate, and a test mold. The outer walls of both ends of the limiting rod are fixedly welded to the outer wall of one end of the rocker arm. The outer wall of the other end of the rocker arm is fixedly welded to the left side of the vibratory compaction platform body. Sliding grooves are provided on the inner walls of the front and back sides of the vibratory compaction platform body. A rotating hole is provided on the right side of the vibratory compaction platform body. A cleaning groove is provided at the bottom of the left side of the vibratory compaction platform body. The inner walls of the front and back sides of the vibratory compaction platform body are fixedly welded to the outer wall of one end of the connecting rod. The outer wall of the other end of the connecting rod is fixedly welded to the front and back sides of the placement plate, respectively. The inner bottom wall of the placement plate is movably abutting against the bottom of the test mold. The outer walls of the limiting rod away from both ends are rotatably connected to the inner wall of the support platform near the top.

[0008] Preferably, the driving component comprises a support plate, a protective block, a motor, a rotating shaft, a cam, a rubber sleeve, a roller, a fixed shaft, and a connecting block. The number of support plates and connecting blocks is set to two. The front of one support plate is fixedly connected to the back of the protective block by bolts, and the inner wall of the protective block is fixedly connected to the outer wall of the motor. The output end of the motor is fixedly connected to one end of the rotating shaft via a coupling, and the outer wall of the other end of the rotating shaft is fixedly connected to the inner wall of the cam. The outer wall of the cam movably abuts against the outer wall of the rubber sleeve, and the inner wall of the rubber sleeve is fixedly connected to the outer wall of the roller. The inner wall of the roller is rotatably connected to the outer wall of the fixed shaft, and the outer walls at both ends of the fixed shaft are respectively fixedly welded to the outer walls of the two connecting blocks. The tops of both connecting blocks are fixedly connected to the bottom of the vibratory table body near the right side, and the bottoms of both support plates are fixedly connected to the top of the base near the right side.

[0009] Preferably, the limiting component includes an adjusting knob, an adjusting rod, a first bevel gear, a limiting plate, a first limiting ring, a connecting plate, a guide rod, and a baffle. The bottom of the adjusting knob is fixedly connected to the top of the adjusting rod. The outer wall of the bottom end of the adjusting rod is fixedly connected to the inner wall of the first bevel gear. The outer wall of the adjusting rod near the bottom end is rotatably connected to the inner wall of the limiting plate. The outer wall of the limiting plate is movably abutting against the outer wall of the first limiting ring. The inner wall of the first limiting ring is fixedly connected to the outer wall of the adjusting rod near the limiting plate. The outer wall of the adjusting rod away from the bottom end is threadedly connected to the inner wall of the right side of the connecting plate. The inner wall of the connecting plate near the center is slidably connected to the outer wall of the guide rod. The left side of the connecting plate is fixedly welded to the right side of the baffle. The bottom end of the guide rod is fixedly connected to the top of the vibratory table body near the right side. The left side of the limiting plate is fixedly welded to the right side of the vibratory table body.

[0010] Preferably, the inner wall of the second bevel gear is fixedly connected to the outer wall of one end of the transmission rod, and the outer wall of the transmission rod near the second bevel gear is fixedly connected to the inner wall of the second limiting ring. The outer wall of the transmission rod away from the second bevel gear is threadedly connected to the inner wall of the transmission plate. The front and back of the transmission plate are provided with sliders. The left side of the transmission plate is fixedly connected to the right side of the scraper. The outer wall of the slider is slidably connected to the inner wall of the groove. The outer wall of the transmission rod near the second limiting ring is rotatably connected to the inner wall of the rotating hole. The bottom of the scraper is slidably connected to the inner bottom wall of the vibrating table body. The outer wall of the second bevel gear is meshed with the outer wall of the first bevel gear.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] In this invention, in the initial state, the scraper is located on the far left and the baffle is located on the far top. After the cement mortar is injected into the mold, rotating the adjustment knob drives the adjustment rod to rotate. The adjustment rod drives the connecting plate and the baffle to descend along the guide rod through the thread. At the same time, the first bevel gear drives the transmission rod to rotate through the second bevel gear, which in turn drives the transmission plate and the scraper to move along the slide groove to the far right under the action of the slider. After the compaction work, rotating the adjustment knob in the opposite direction drives the baffle to move upward to release the lock. At the same time, the scraper moves from the left side of the far right box of the compaction table body, and discharges the cement mortar spilled during the compaction process from the cleaning tank on the far left, ensuring that the table surface is clean and avoiding affecting the next test, which is convenient for people to use.

[0013] In this invention, the cement mortar spilled during the compaction process is discharged from the leftmost cleaning trough and collected in the collection box below. When the motor starts, it drives the cam to rotate via the shaft. When the cam rotates, it pushes the connecting block up and down via the rubber sleeve and roller, thereby causing the compaction table body to vibrate up and down around the axis of the limit rod via the rocker arm. The test mold placed on the placement plate vibrates together with the compaction table body, thereby achieving the compaction of cement mortar. The rubber sleeve avoids direct contact between the cam and the roller, reducing mechanical wear and extending the equipment life. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the present invention;

[0016] Figure 3 This is an exploded view of the present invention;

[0017] Figure 4 This is an exploded view of the driving component in this utility model;

[0018] Figure 5 This is an exploded view of the limiting component and the cleaning component in this utility model.

[0019] In the diagram: 1. Base; 101. Base; 102. Collection box; 103. Support platform; 2. Vibrating component; 201. Limiting rod; 202. Rocker arm; 203. Vibrating platform body; 204. Slide groove; 205. Rotary hole; 206. Cleaning tank; 207. Connecting rod; 208. Placement plate; 209. Trial mold; 3. Driving component; 301. Support plate; 302. Protective block; 303. Motor; 304. Rotating shaft; 305. Cam; 306. Rubber... 307. Rubber sleeve; 308. Roller; 309. Fixed shaft; 4. Connecting block; 4. Limiting component; 401. Adjusting knob; 402. Adjusting rod; 403. First bevel gear; 404. Limiting plate; 405. First limiting ring; 406. Connecting plate; 407. Guide rod; 408. Baffle; 5. Cleaning component; 501. Second bevel gear; 502. Transmission rod; 503. Second limiting ring; 504. Transmission plate; 505. Slider; 506. Scraper. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1 to 5 This utility model provides a technical solution: a cement mortar compaction table that is easy to clean, including a base 1, the inner wall of the base 1 near the top is rotatably connected to the outer wall of the compaction member 2 away from both ends, the bottom of the compaction member 2 near the right side is fixedly connected to the top of the driving member 3, the bottom of the driving member 3 is fixedly connected to the top of the base 1 near the right side, and the right side of the compaction member 2 is fixedly welded to the left side of the limiting member 4.

[0022] The outer wall of the limiting member 4 is engaged with the outer wall of the cleaning member 5, and the bottom of the cleaning member 5 is slidably connected to the inner bottom wall of the vibrating member 2. The cleaning member 5 is composed of a second bevel gear 501, a transmission rod 502, a second limiting ring 503, a transmission plate 504, a slider 505, and a scraper 506.

[0023] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the base 1 consists of a base 101, a collection box 102 and a support platform 103. The top of the base 101 near the center is fixedly connected to the bottom of the collection box 102, and the top of the base 101 near the left side is fixedly connected to the bottom of the support platform 103. The collection box 102 can collect clean waste.

[0024] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the vibratory compactor 2 includes a limiting rod 201, a rocker arm 202, a vibratory compactor body 203, a sliding groove 204, a rotating hole 205, a cleaning groove 206, a connecting rod 207, a placement plate 208, and a test mold 209. The outer walls at both ends of the limiting rod 201 are fixedly welded to the outer wall of one end of the rocker arm 202, and the outer wall of the other end of the rocker arm 202 is fixedly welded to the left side of the vibratory compactor body 203. Sliding grooves 204 are provided on the inner walls of both the front and back sides of the vibratory compactor body 203. A rotating hole 205 is provided on the right side of 3, and a cleaning groove 206 is provided on the bottom left side of the vibrating table body 203. The inner sidewalls of the front and back of the vibrating table body 203 are fixedly welded to the outer wall of one end of the connecting rod 207, and the outer wall of the other end of the connecting rod 207 is fixedly welded to the front and back of the placement plate 208 respectively. The inner bottom wall of the placement plate 208 is in movable contact with the bottom of the test mold 209, and the outer wall of the limiting rod 201 away from both ends is rotatably connected to the inner wall of the support table 103 near the top.

[0025] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the driving component 3 consists of a support plate 301, a protective block 302, a motor 303, a rotating shaft 304, a cam 305, a rubber sleeve 306, a roller 307, a fixed shaft 308, and a connecting block 309. Two support plates 301 and two connecting blocks 309 are used. The front of one support plate 301 is fixedly connected to the back of the protective block 302 by bolts, and the inner wall of the protective block 302 is fixedly connected to the outer wall of the motor 303. The output end of the motor 303 is fixedly connected to one end of the rotating shaft 304 via a coupling, and the outer wall of the other end of the rotating shaft 304 is fixedly connected to the inner wall of the cam 305. The outer wall of the cam 305 movably abuts against the outer wall of the rubber sleeve 306, and the inner wall of the rubber sleeve 306 is fixedly connected to the outer wall of the roller 307. The inner wall of the roller 307 is rotatably connected to the outer wall of the fixed shaft 308. The outer walls of the fixed shaft 308 at both ends are fixedly welded to the outer walls of the two connecting blocks 309 respectively. The tops of the two connecting blocks 309 are fixedly connected to the bottom of the vibratory table body 203 near the right side. The bottoms of the two support plates 301 are fixedly connected to the top of the base 101 near the right side. When the motor 303 starts, it drives the cam 305 to rotate through the rotating shaft 304. When the cam 305 rotates, it pushes the connecting blocks 309 up and down through the rubber sleeve 306 and the roller 307. This causes the vibratory table body 203 to vibrate up and down around the axis of the limit rod 201 through the rocker arm 202. The test mold 209 placed on the placement plate 208 vibrates together with the vibratory table body 203, thereby achieving the compaction of cement mortar. The rubber sleeve 306 avoids direct contact between the cam 305 and the roller 307, reducing mechanical wear and extending the equipment life.

[0026] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the limiting component 4 includes an adjusting knob 401, an adjusting rod 402, a first bevel gear 403, a limiting plate 404, a first limiting ring 405, a connecting plate 406, a guide rod 407, and a baffle 408. The bottom of the adjusting knob 401 is fixedly connected to the top of the adjusting rod 402. The outer wall of the bottom end of the adjusting rod 402 is fixedly connected to the inner wall of the first bevel gear 403. The outer wall of the adjusting rod 402 near the bottom end is rotatably connected to the inner wall of the limiting plate 404. The outer wall of the limiting plate 404 is in movable contact with the outer wall of the first limiting ring 405. The inner wall of the first limiting ring 405 is in contact with the adjusting rod 402. The outer wall of the limiting plate 404 is fixedly connected to the adjusting rod 402. The outer wall of the adjusting rod 402 away from the bottom is threadedly connected to the inner wall of the right side of the connecting plate 406. The inner wall of the connecting plate 406 near the center is slidably connected to the outer wall of the guide rod 407. The left side of the connecting plate 406 is fixedly welded to the right side of the baffle 408. The bottom end of the guide rod 407 is fixedly connected to the top of the vibrating table body 203 near the right side. The left side of the limiting plate 404 is fixedly welded to the right side of the vibrating table body 203. When the adjusting rod 402 rotates, it can drive the connecting plate 406 and the baffle 408 to move along the axis of the guide rod 407 through the thread.

[0027] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the inner wall of the second bevel gear 501 is fixedly connected to the outer wall of one end of the transmission rod 502, and the transmission rod 502 is fixedly connected to the inner wall of the second limiting ring 503 near the outer wall of the second bevel gear 501. The transmission rod 502 is threadedly connected to the inner wall of the transmission plate 504 away from the outer wall of the second bevel gear 501. Slider 505s are provided on both the front and back of the transmission plate 504. The left side of the transmission plate 504 is fixedly connected to the right side of the scraper 506, and the outer wall of the slider 505 is slidably connected to the inner wall of the groove 204. The outer wall of the transmission rod 502 near the second limiting ring 503 is rotatably connected to the inner wall of the rotating hole 205. The bottom of the scraper 506 is slidably connected to the inner bottom wall of the vibrating table body 203. The outer wall of the second bevel gear 501 meshes with the outer wall of the first bevel gear 403. In the initial state, the scraper 506... Located on the far left and with baffle 408 at the top, after cement mortar is injected into the mold 209, rotating the adjustment knob 401 drives the adjustment rod 402 to rotate. The adjustment rod 402 drives the connecting plate 406 and baffle 408 to descend along the guide rod 407 via a thread. At the same time, the first bevel gear 403 drives the transmission rod 502 to rotate via the second bevel gear 501, which in turn drives the transmission plate 504 and scraper 506 to move to the far right along the slide groove 204 under the action of the slider 505. After the compaction work is completed, rotating the adjustment knob 401 in the opposite direction drives the baffle 408 to move upward to release the lock. At the same time, the scraper 506 moves from the left side of the far right box of the compaction table body 203 to discharge the cement mortar spilled during the compaction process from the cleaning trough 206 on the far left, ensuring that the table surface is clean and avoiding affecting the next test, which is convenient for people to use.

[0028] The usage and advantages of this utility model: The working process of this easy-to-clean cement mortar compaction table is as follows:

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, in the initial state, the scraper 506 is located on the far left and the baffle 408 is located on the far top. After the cement mortar is injected into the test mold 209, rotating the adjustment knob 401 drives the adjustment rod 402 to rotate. The adjustment rod 402 drives the connecting plate 406 and the baffle 408 to descend along the guide rod 407 through the thread. At the same time, the first bevel gear 403 drives the transmission rod 502 to rotate through the second bevel gear 501, which in turn drives the transmission plate 504 and the scraper 506 to move to the far right along the slide groove 204 under the action of the slider 505. After the vibration work, rotating the adjustment knob 401 in the opposite direction drives the baffle 408 to move upward to release the lock. At the same time, the scraper 506 moves from the left side of the far right box of the vibration table body 203, and discharges the cement mortar spilled during the vibration process from the leftmost cleaning tank 206. To ensure the platform is clean and avoid affecting the next test, and to facilitate use, the cement mortar spilled during the compaction process is discharged from the leftmost cleaning trough 206 and collected in the collection box 102 below. When the motor 303 starts, it drives the cam 305 to rotate through the rotating shaft 304. When the cam 305 rotates, it pushes the connecting block 309 up and down through the rubber sleeve 306 and the roller 307, so that the compaction table body 203 vibrates up and down around the axis of the limit rod 201 through the rocker arm 202. The test mold 209 placed on the placement plate 208 vibrates together with the compaction table body 203, thereby achieving the compaction of cement mortar. The rubber sleeve 306 avoids direct contact between the cam 305 and the roller 307, reducing mechanical wear and extending the equipment life.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cement mortar compaction table that is easy to clean, comprising a base (1), characterized in that: The inner wall of the base (1) near the top is rotatably connected to the outer wall of the vibrating element (2) away from both ends. The bottom of the vibrating element (2) near the right side is fixedly connected to the top of the driving element (3). The bottom of the driving element (3) is fixedly connected to the top of the base (1) near the right side. The right side of the vibrating element (2) is fixedly welded to the left side of the limiting element (4). The outer wall of the limiting member (4) is engaged with the outer wall of the cleaning member (5), and the bottom of the cleaning member (5) is slidably connected with the inner bottom wall of the vibrating member (2). The cleaning member (5) is composed of a second bevel gear (501), a transmission rod (502), a second limiting ring (503), a transmission plate (504), a slider (505), and a scraper (506).

2. The cement mortar compaction table for easy cleaning as described in claim 1, characterized in that: The base (1) consists of a base (101), a collection box (102) and a support platform (103), with the top of the base (101) near the center being fixedly connected to the bottom of the collection box (102), and the top of the base (101) near the left side being fixedly connected to the bottom of the support platform (103).

3. A cement mortar compaction table for easy cleaning as described in claim 2, characterized in that: The vibratory component (2) includes a limiting rod (201), a rocker arm (202), a vibratory table body (203), a sliding groove (204), a rotating hole (205), a cleaning groove (206), a connecting rod (207), a placement plate (208), and a test mold (209). The outer walls of both ends of the limiting rod (201) are fixedly welded to the outer wall of one end of the rocker arm (202), and the outer wall of the other end of the rocker arm (202) is fixedly welded to the left side of the vibratory table body (203). The inner walls of the front and back sides of the vibratory table body (203) are provided with sliding grooves (204). A rotating hole (205) is provided on the right side of the body (203), and a cleaning groove (206) is provided at the bottom left side of the vibrating table body (203). The inner sidewalls of the front and back sides of the vibrating table body (203) are fixedly welded to the outer wall of one end of the connecting rod (207), and the outer wall of the other end of the connecting rod (207) is fixedly welded to the front and back sides of the placement plate (208), respectively. The inner bottom wall of the placement plate (208) is movably abutted against the bottom of the test mold (209), and the outer wall of the limiting rod (201) away from both ends is rotatably connected to the inner wall of the support platform (103) near the top.

4. A cement mortar compaction table for easy cleaning according to claim 3, characterized in that: The driving component (3) consists of a support plate (301), a protective block (302), a motor (303), a rotating shaft (304), a cam (305), a rubber sleeve (306), a roller (307), a fixed shaft (308), and a connecting block (309). The support plate (301) and the connecting block (309) are both two in number. The front of one of the support plates (301) is fixedly connected to the back of the protective block (302) by bolts, and the inner wall of the protective block (302) is fixedly connected to the outer wall of the motor (303). The output end of the motor (303) is fixedly connected to one end of the rotating shaft (304) via a coupling. The outer wall of the other end of 304 is fixedly connected to the inner wall of the cam (305). The outer wall of the cam (305) is in movable contact with the outer wall of the rubber sleeve (306). The inner wall of the rubber sleeve (306) is fixedly connected to the outer wall of the roller (307). The inner wall of the roller (307) is rotatably connected to the outer wall of the fixed shaft (308). The outer walls of both ends of the fixed shaft (308) are fixedly welded to the outer walls of the two connecting blocks (309). The tops of the two connecting blocks (309) are fixedly connected to the bottom of the vibrating table body (203) near the right side. The bottoms of the two support plates (301) are fixedly connected to the top of the base (101) near the right side.

5. A cement mortar compaction table for easy cleaning according to claim 3, characterized in that: The limiting component (4) includes an adjusting knob (401), an adjusting rod (402), a first bevel gear (403), a limiting plate (404), a first limiting ring (405), a connecting plate (406), a guide rod (407), and a baffle (408). The bottom of the adjusting knob (401) is fixedly connected to the top of the adjusting rod (402). The outer wall of the bottom end of the adjusting rod (402) is fixedly connected to the inner wall of the first bevel gear (403). The outer wall of the adjusting rod (402) near the bottom end is rotatably connected to the inner wall of the limiting plate (404). The outer wall of the limiting plate (404) is connected to the outer wall of the first limiting ring (405). The first limiting ring (405) is fixedly connected to the inner wall of the adjusting rod (402) near the outer wall of the limiting plate (404). The outer wall of the adjusting rod (402) away from the bottom end is threadedly connected to the inner wall of the right side of the connecting plate (406). The inner wall of the connecting plate (406) near the center is slidably connected to the outer wall of the guide rod (407). The left side of the connecting plate (406) is fixedly welded to the right side of the baffle (408). The bottom end of the guide rod (407) is fixedly connected to the top of the vibrating table body (203) near the right side. The left side of the limiting plate (404) is fixedly welded to the right side of the vibrating table body (203).

6. A cement mortar compaction table for easy cleaning according to claim 5, characterized in that: The inner wall of the second bevel gear (501) is fixedly connected to the outer wall of one end of the transmission rod (502), and the transmission rod (502) is fixedly connected to the inner wall of the second limiting ring (503) near the outer wall of the second bevel gear (501). The outer wall of the transmission rod (502) away from the second bevel gear (501) is threadedly connected to the inner wall of the transmission plate (504). The transmission plate (504) has sliders (505) on both its front and back sides. 4) The left side is fixedly connected to the right side of the scraper (506), and the outer wall of the slider (505) is slidably connected to the inner wall of the slide groove (204). The transmission rod (502) is rotatably connected to the inner wall of the rotating hole (205) near the outer wall of the second limiting ring (503), and the bottom of the scraper (506) is slidably connected to the inner bottom wall of the vibrating table body (203). The outer wall of the second bevel gear (501) is meshed with the outer wall of the first bevel gear (403).

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