A scraping mechanism applicable to precision grid equipment

Abstract

The utility model proposes a scraping mechanism applicable to precision grille equipment, including a rotating shaft and a scraper; the rotating shaft is vertically arranged, and the upper end of the rotating shaft is connected to the reducer in transmission; the scraper includes at least one group of upper scrapers that scrape the lower part of the upper ring of the screen bucket, lower scrapers that scrape the lower ring of the screen bucket, and bottom scrapers that scrape the bottom of the screen bucket, and the upper scrapers, lower scrapers, and bottom scrapers of the same group are arranged close to each other in sequence, the bottom scraper is connected to the rotating shaft, and the upper scrapers and lower scrapers are connected to the rotating shaft through mounting rods; the rotating shaft rotates under the drive of the reducer and drives the scraper to scrape the inner wall of the screen bucket. The scraping mechanism can scrape the screen residue from the inner wall of the screen bucket, and can scrape the screen residue to the residue outlet under the flushing and cooperation of the water flow.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a scraping mechanism suitable for precision grille equipment. Background Art

[0002] like Figure 1 As shown, the figure shows a screen bucket 100 for precision screen equipment, which is roughly bowl-shaped, and has an upper edge 101, a ring body and a bottom 104 connected in sequence, wherein the ring body includes an upper ring body 102 and a lower ring body 103, and a slag outlet 105 is arranged at the center of the bottom 104, and the upper edge 101 has an annular water outlet weir, and sewage can spread from various places of the water outlet weir and fall onto the inner wall of the ring body, and a plurality of sieve holes 106 are arranged on the inner wall of the ring body. Under the action of gravity, the sewage quickly passes through the sieve holes 106 and separates solid impurities, which are screen residues.

[0003] Based on the above-mentioned screen residue, how to automatically scrape it out of the sieve holes and drop it at the residue outlet is a technical problem that needs to be solved in this application. Utility Model Content

[0004] In order to solve the above technical problems, the utility model proposes a scraping mechanism with a new structure which can be applicable to precision grid equipment, so as to realize automatic scraping of grid residue and the problem of residue falling at a discharge port.

[0005] To this end, the scraping mechanism of the utility model includes a rotating shaft and a scraper; the rotating shaft is vertically arranged, and the upper end of the rotating shaft is transmission-connected to the reducer; the scraper includes at least one group of upper scrapers that scrape the lower part of the upper ring of the screen bucket, lower scrapers that scrape the lower ring of the screen bucket, and bottom scrapers that scrape the bottom of the screen bucket, and the upper scrapers, lower scrapers, and bottom scrapers of the same group are arranged close to each other in sequence, the bottom scraper is connected to the rotating shaft, and the upper scrapers and lower scrapers are connected to the rotating shaft through mounting rods; the rotating shaft rotates under the drive of the reducer and drives the scrapers to scrape the inner wall of the screen bucket.

[0006] In some embodiments, the scrapers are arranged in two groups, and the two groups are symmetrically arranged with the rotating shaft as a reference.

[0007] In some embodiments, the upper scraper, the lower scraper, and the bottom scraper in each group are all in the same vertical plane.

[0008] In some embodiments, the reducer is installed on the top of the cover of the precision grid equipment, and the rotating shaft extends upward to be transmission-connected with the output end of the reducer.

[0009] In some embodiments, a hollow cylindrical body is installed on the top of the cover, the reducer is installed on the top of the cylindrical body, the rotating shaft is rotatably installed in the inner cavity of the cylindrical body through a bearing, and the output end of the reducer extends downward into the inner cavity of the cylindrical body to connect with the top of the rotating shaft.

[0010] In some embodiments, the top end of the rotating shaft and the output end of the reducer are both provided with connecting flanges, and the two are connected in transmission via the connecting flanges.

[0011] In some embodiments, the upper scraper and the lower scraper are both straight single scrapers, and the bottom scraper is a V-shaped scraper composed of two straight single scrapers. The length of the linear single scraper at the front of the V-shaped scraper is shorter than that of the linear single scraper at the rear, and the linear single scraper at the front is arranged close to the lower scraper of the same group, while the linear single scraper at the rear extends from the outer end of the bucket bottom to the slag outlet at the bucket bottom and extends a distance to the slag outlet.

[0012] In some embodiments, the straight single scraper includes a scraper body, a mounting part, and a connecting part. The connecting parts of the upper scraper and the lower scraper are used to connect to the mounting rod, and the connecting part of the bottom scraper is used to connect to the rotating shaft. The mounting part is used to install the scraper body. The mounting part and the connecting part are connected by bolts and nuts, and a spring is sleeved on the bolt, and the two ends of the spring respectively abut the connecting part and the mounting part.

[0013] In some embodiments, the mounting rod is connected to the rotating shaft via a connecting sleeve, and the connecting sleeve includes a first connecting sleeve and a second connecting sleeve, wherein the first connecting sleeve is used to connect the mounting rod connected to the upper scraper and the lower scraper, and the second connecting sleeve is used to connect to the connecting piece of the bottom scraper;

[0014] The first connecting sleeve includes a first sleeve for being sleeved on the rotating shaft, and a first connecting wing plate symmetrically arranged on the left and right side walls of the first sleeve, the first connecting wing plate includes two pieces arranged in front and back, each piece is provided with a connecting hole, and the first sleeve is provided with a first mounting hole for the connecting fastener to pass through; the second connecting sleeve includes a second sleeve for being sleeved on the rotating shaft, and a second connecting wing plate symmetrically arranged on the left and right side walls of the second sleeve, the second connecting wing plate is horizontally provided with an insertion slot for the end of the connecting piece to be inserted, and the second sleeve is provided with a second mounting hole for the connecting fastener to pass through.

[0015] Beneficial effect: The scraping mechanism of the present application can be applied to the screen bucket of precision grid equipment through the arrangement of multiple scrapers. Automatic scraping can be achieved under the drive of the reducer. In addition, under the dual effects of water flow and scrapers, the screen residue can be automatically washed to the residue outlet at the bottom of the screen bucket and fall down. The entire scraping process is automatic, because the ring body and the bottom of the screen bucket are scraped by scrapers, which can effectively scrape off the solid impurities in the sieve holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the internal structure when the scraping mechanism is arranged in the screening bucket;

[0017] Figure 2 It is a structural schematic diagram of the first connecting sleeve of the scraping mechanism;

[0018] Figure 3 It is a schematic structural diagram of the second connecting sleeve of the scraping mechanism.

[0019] Figure 4 It is a schematic diagram of the structure of the lower scraper of the scraping mechanism.

[0020] Figure 5 It is a three-dimensional structural schematic diagram of the scraping mechanism.

[0021] Reference numerals

[0022] 1. Rotating shaft,

[0023] 2. Scraper, 21 upper scraper, 22 lower scraper, 23 bottom scraper,

[0024] 200, scraper body, 201, mounting part, 202, connecting part,

[0025] 3. Reducer, 4. Mounting rod, 5. Cylindrical seat, 6. Connecting flange, 7. Spring,

[0026] 8. first connecting sleeve, 81. first sleeve, 82. first connecting wing plate, 83. connecting hole, 84. first mounting hole,

[0027] 9. second connecting sleeve, 91. second sleeve, 92. second connecting wing plate, 93. insertion slot, 94. second mounting hole,

[0028] 100, sieve bucket, 101, upper edge, 102, upper ring body, 103, lower ring body, 104, bucket bottom, 105, slag outlet, 106, sieve hole. DETAILED DESCRIPTION

[0029] To solve Figure 1 The scraping mechanism of the screen bucket 100 shown in the figure is used to scrape the screen residue in the screen bucket 100 and make it fall to the residue outlet 105 of the bottom of the bucket 104. The present invention provides a scraping mechanism that can be applied to precision screen equipment. Figure 1-Figure 5 The scraping mechanism comprises a rotating shaft 1 and a scraper 2. The rotating shaft 1 is vertically arranged, and the upper end of the rotating shaft 1 is transmission-connected with a reducer 3. The vertically arranged rotating shaft 1 can be adapted to a bowl-shaped sieve bucket 100 that is vertically arranged with an opening facing upward.

[0030] The scraper 2 includes at least one group of upper scrapers 21 for scraping the lower part of the upper ring 102 of the screen bucket 100, lower scrapers 22 for scraping the lower ring 103 of the screen bucket 100, and bottom scrapers 23 for scraping the bottom 104 of the screen bucket 100, and the upper scrapers 21, lower scrapers 22, and bottom scrapers 23 of the same group are arranged close to each other in sequence, so that the ring body and the bottom 104 of the screen bucket are scraped by scrapers, and no screen residue will be missed. It should be noted that the upper and middle parts of the upper ring 102 will basically not have screen residue left under the impact of water flow, and it has a certain verticality, so there is basically no need to set scrapers.

[0031] Regarding the connection between the scraper 2 and the rotating shaft 1 , in this embodiment, the bottom scraper 23 is connected to the rotating shaft 1 , and the upper scraper 21 and the lower scraper 22 are connected to the rotating shaft 1 via the mounting rod 4 .

[0032] In order to realize automatic scraping, the rotating shaft 1 is driven by the reducer 3 to rotate and drive the scraper 2 to scrape the inner wall of the screen bucket 100.

[0033] As for the number of scraper groups, in this embodiment, considering that the filtering amount of the screen bucket 100 is multiplied compared with the conventional fine grid equipment, the amount of screen residue will also be multiplied, so in this embodiment, two groups are preferably set. Specifically, the two groups are symmetrically arranged with the rotating shaft 1 as the reference, and the upper scraper 21, the lower scraper 22, and the bottom scraper 23 in each group are all in the same vertical plane, so that the two groups of scrapers 2 are symmetrically arranged on both sides of the rotating shaft 1 in the most labor-saving and regular state, and the two groups of scrapers 2 cooperate with each other to timely and effectively process the scraping residue on the inner wall of the screen bucket 100 at an interval angle of 180 degrees.

[0034] Considering the installation of the reducer 3, in this embodiment, the reducer 3 is installed on the top of the cover (not shown) of the precision grid equipment, and the rotating shaft 1 extends upward to be transmission-connected with the output end of the reducer 3. Specifically, a hollow cylindrical seat body 5 is installed on the top of the cover, the reducer 3 is installed on the top of the cylindrical seat body 5, the rotating shaft 1 is rotationally installed in the inner cavity of the cylindrical seat body 5 through a bearing, and the output end of the reducer 3 extends downward into the inner cavity of the cylindrical seat body 5 to be connected with the top of the rotating shaft 1. At the same time, the top of the rotating shaft 1 and the output end of the reducer 3 are both provided with a connecting flange 6, and the two are transmission-connected by relying on the connecting flange 6. After adopting the above-mentioned structural setting, on the one hand, the installation of the reducer 3 on the cylindrical seat body 5 is realized, and on the other hand, the rotating shaft 1 can be rotatably installed in the cylindrical seat body 5, so that under the self-rotation of the output end of the reducer 3, the top of the rotating shaft 1 can rotate in the cylindrical seat body 5 without interference.

[0035] In this embodiment, with regard to the specific structure of the scraper 2, specifically, the upper scraper 21 and the lower scraper 22 are both straight single scrapers, and the bottom scraper 23 is a V-shaped scraper composed of two straight single scrapers, in which the length of the front straight single scraper is shorter than that of the rear straight single scraper, and the front straight single scraper is arranged close to the lower scraper 22 of the same group, while the rear straight single scraper extends from the outer end of the bucket bottom 104 to the slag outlet 105 of the bucket bottom 104 and extends to a distance from the slag outlet 105 so that the grating slag around the slag outlet 105 can also be scraped. It can be seen that the upper scraper 21 and the lower scraper 22 are both straight single scrapers, which can meet the demand of simple structure on the one hand, and on the other hand, the upper scraper 21 and the lower scraper 22 are mainly used to scrape the lower part of the upper ring body 102 and the lower ring body 103, and the upper ring body 102 and the lower ring body 103 have a large verticality, and the use of a straight single scraper can meet the scraping needs. The bottom scraper 23 is a V-shaped scraper, mainly considering that the bottom 104 of the bucket is relatively flat. Although it has a certain inclination, the inclination is basically not large. The screen residues of the upper ring body 102 and the lower ring body 103 will gather under the action of the upper scraper 21 and the lower scraper 22 as well as the water flow. If only a straight single scraper is used, the scraping force is relatively insufficient, which will make it impossible to bring the screen residue to the slag outlet 105 in a quick and labor-saving manner. The structural design of the V-shaped scraper is that the straight single scraper in the front position can scrape the screen residue first, reducing the scraping force required for the straight single scraper in the rear position when scraping, and can also make the screen residue be squeezed and driven in the direction of the slag outlet 105. In this way, under the joint action of the straight single scraper in the front position, the straight single scraper in the rear position and the water flow, the screen residue can be scraped clean and pushed to the slag outlet 105 more labor-saving, convenient and smooth, and the screen residue will not gather at the bottom 104 of the bucket.

[0036] The stable, reliable and convenient installation of the scraper 2 is also a technical issue that needs to be focused on in this application. Specifically, in this embodiment, the linear single scraper includes a scraper body 200, a mounting member 201, and a connecting member 202. The connecting member 202 of the upper scraper 21 and the lower scraper 22 is used to connect with the mounting rod 4, and the connecting member 202 of the bottom scraper 23 is used to connect with the rotating shaft 1. The mounting member 201 is used to install the scraper body 200. The mounting member 4 and the connecting member 202 are connected by bolts and nuts, and a spring 7 is sleeved on the bolt, and the two ends of the spring 7 abut against the connecting member 202 and the mounting member 201 respectively. The connecting member 202 of the upper scraper 21 and the lower scraper 22 is used to connect with the mounting rod 4, mainly considering that the upper scraper 21 and the lower scraper 22 are far away from the rotating shaft 1, and the mounting rod 4 needs to be provided as an intermediate transition rod, while the bottom scraper 23 is close to the rotating shaft 1 and can be directly connected to the rotating shaft 1, so there is no need to provide an intermediate transition rod. The spring 7 used in the above structure can play an elastic scraping role, avoiding the scraping jam caused by the inner walls of the upper ring body 102 and the lower ring body 103 being partially slightly convex.

[0037] In order to realize the installation of the scraper 2 on the rotating shaft 1, the mounting rod 4 is connected to the rotating shaft 1 through a connecting sleeve, and the connecting sleeve includes a first connecting sleeve 8 and a second connecting sleeve 9. The first connecting sleeve 8 is used to connect the mounting rod 4 connected to the upper scraper 21 and the lower scraper 22, and the second connecting sleeve 9 is used to connect the connecting piece 202 of the bottom scraper 23.

[0038] Specifically, the first connecting sleeve 8 includes a first sleeve 81 for being sleeved on the rotating shaft 1, and a first connecting wing plate 82 symmetrically arranged on the left and right side walls of the first sleeve 8. The first connecting wing plate 82 includes two pieces arranged front and back, each piece is provided with a connecting hole 83, and the first sleeve 8 is provided with a first mounting hole 84 for the connecting fastener to pass through. With such a design, the end of the mounting rod 4 can be placed in the two first connecting wing plates 82 arranged front and back, and then the mounting rod 4 and the first connecting wing plate 82 can be connected together by using the connecting fastener. It should be noted that the two first connecting wing plates 82 arranged front and back are mainly used because the end of the mounting rod 4 is a cylindrical structure, and after the connection, there is an angle of less than 90 degrees between the end of the mounting rod 4 and the rotating shaft 1. And the first sleeve 81 can be fastened to the rotating shaft 1 through the first mounting hole 84.

[0039] In this embodiment, the second connecting sleeve 9 includes a second sleeve 91 for sleeved on the rotating shaft 1, and second connecting wing plates 92 symmetrically arranged on the left and right side walls of the second sleeve 91. The second connecting wing plates 92 are horizontally provided with an insertion slot 93 for the end of the connecting member 202 to be inserted, and the second sleeve 91 is provided with a second mounting hole 94 for the connecting fastener to be installed. The second connecting sleeve 9 is provided with the insertion slot 93 horizontally, mainly considering that the bottom scraper 23 is arranged in a substantially horizontal state, resulting in the connecting member 202 being arranged substantially horizontally, so the connecting member 202 can be directly inserted and fixed in the insertion slot 93, and the second sleeve 91 can be fastened to the rotating shaft 1 through the second mounting hole 94.

[0040] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A scraping mechanism applicable to precision grid equipment, characterized in that: It includes a rotating shaft and a scraper; the rotating shaft is vertically arranged, and the upper end of the rotating shaft is transmission-connected to the reducer; the scraper includes at least one group of upper scrapers that scrape the lower part of the upper ring of the screen bucket, lower scrapers that scrape the lower ring of the screen bucket, and bottom scrapers that scrape the bottom of the screen bucket, and the upper scrapers, lower scrapers, and bottom scrapers of the same group are arranged close to each other in sequence, the bottom scraper is connected to the rotating shaft, and the upper scrapers and lower scrapers are connected to the rotating shaft through mounting rods; the rotating shaft rotates under the drive of the reducer and drives the scrapers to scrape the inner wall of the screen bucket.

2. The scraping mechanism applicable to precision grid equipment according to claim 1 is characterized in that: The scrapers are arranged in two groups, and the two groups are symmetrically arranged with the rotating shaft as a reference.

3. The scraping mechanism applicable to precision grid equipment according to claim 2 is characterized in that: The upper scraper, lower scraper and bottom scraper in each group are all in the same vertical plane.

4. The scraping mechanism applicable to precision grid equipment according to claim 1, characterized in that: The reducer is installed on the top of the cover of the precision grid equipment, and the rotating shaft extends upward to be transmission-connected with the output end of the reducer.

5. The scraping mechanism applicable to precision grid equipment according to claim 4 is characterized in that: A hollow cylindrical body is installed on the top of the cover, the reducer is installed on the top of the cylindrical body, the shaft is rotatably installed in the inner cavity of the cylindrical body through a bearing, and the output end of the reducer extends downward into the inner cavity of the cylindrical body to connect with the top of the shaft.

6. The scraping mechanism applicable to precision grid equipment according to claim 5, characterized in that: The top end of the rotating shaft and the output end of the reducer are both provided with connecting flanges, and the two are connected in transmission by means of the connecting flanges.

7. The scraping mechanism applicable to precision grid equipment according to claim 1, characterized in that: The upper scraper and the lower scraper are both straight single scrapers, and the bottom scraper is a V-shaped scraper composed of two straight single scrapers. The length of the straight single scraper at the front of the V-shaped scraper is shorter than that of the straight single scraper at the rear, and the straight single scraper at the front is arranged close to the lower scraper of the same group, while the straight single scraper at the rear extends from the outer end of the bucket bottom to the slag outlet at the bottom of the bucket and extends to a distance from the slag outlet at the bottom of the screening bucket.

8. The scraping mechanism applicable to precision grid equipment according to claim 7, characterized in that: The straight single scraper includes a scraper body, a mounting part, and a connecting part. The connecting parts of the upper scraper and the lower scraper are used to connect with the mounting rod, and the connecting part of the bottom scraper is used to connect with the rotating shaft. The mounting part is used to install the scraper body. The mounting part and the connecting part are connected by bolts and nuts, and a spring is sleeved on the bolt, and the two ends of the spring respectively abut the connecting part and the mounting part.

9. The scraping mechanism applicable to precision grid equipment according to claim 8, characterized in that: The mounting rod and the rotating shaft are connected via a connecting sleeve, and the connecting sleeve includes a first connecting sleeve and a second connecting sleeve, wherein the first connecting sleeve is used to connect the mounting rod connected to the upper scraper and the lower scraper, and the second connecting sleeve is used to connect the connecting piece to the bottom scraper; The first connecting sleeve comprises a first sleeve for being sleeved on the rotating shaft, and first connecting wing plates symmetrically arranged on the left and right side walls of the first sleeve, the first connecting wing plates comprising two front and rear plates, each of which is provided with a connecting hole, and the first sleeve is provided with a first mounting hole for the connecting fastener to pass through; The second connecting sleeve includes a second sleeve for being sleeved on the rotating shaft, and second connecting wing plates symmetrically arranged on the left and right side walls of the second sleeve. The second connecting wing plates are horizontally provided with insertion slots for the ends of the connecting pieces to be inserted. The second sleeve is provided with a second mounting hole for the connecting fastener to be installed.

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