Disclosure of Invention
In order to overcome the defects that the filtering time is long, the filtering is labor-consuming, the filtering screen can only filter the liquid medicine for one time, and the filtering effect is poor when a user continuously shakes the filtering screen to filter impurities in the liquid medicine, the invention aims to provide the high-efficiency filtering and purifying equipment for the medicinal materials during the bio-pharmacy, which can replace manual work to filter the impurities in the liquid medicine, is labor-saving, can filter the liquid medicine for the second time, and has a good filtering effect.
The technical scheme is as follows: a medicinal material high efficiency filtration purification equipment during bio-pharmaceuticals, including: the edge of one side of the outer side of the working box is provided with a support frame; the speed reducing motor is fixedly connected to one side of the support frame; the primary filtering component is arranged between the working box and the end part of the output shaft of the speed reducing motor and is used for filtering impurities in the liquid medicine; and the blanking assembly is arranged on the working box, is matched with the primary filtering assembly and is used for enabling the liquid medicine to fall off.
As an improvement of the above scheme, the primary filter assembly comprises: the first rotating shaft is rotatably connected between the two sides of the working box in a penetrating manner; the transmission device is arranged between the end part of the first rotating shaft and the end part of an output shaft of the speed reducing motor; the rotating frame is symmetrically and fixedly connected to the first rotating shaft, is positioned in the working box and is matched with the blanking assembly; the first filter sheet is fixedly connected to the inner side circumference of the rotating frame.
As the improvement of the scheme, the blanking assembly comprises: the discharging hopper is fixedly connected to one side, far away from the outer side of the working box of the speed reducing motor, of the working box and is communicated with the working box; the baffle is slidably connected to one side of the discharging hopper in a penetrating manner and matched with the discharging hopper; the L-shaped guide plate is fixedly connected to the middle of one side outside the working box; the u-shaped connecting rod is slidably connected to one side of the L-shaped guide plate in a penetrating manner, and the end part of the u-shaped connecting rod, which is far away from the speed reducing motor, is fixedly connected with one side of the baffle; the first wedge block is fixedly connected to the end part, far away from the blanking hopper, of the u-shaped connecting rod and penetrates through the working box to be matched with the rotating frame; and the first spring is connected between one side in the L-shaped guide plate and one side of the first wedge block far away from the rotating frame, and is sleeved on the u-shaped connecting rod.
As an improvement of the above scheme, the method further comprises the following steps: the guide rod is fixedly connected to one side, close to the L-shaped guide plate, outside the working box; the scraping plate is sleeved on the guide rod in a sliding manner, and the end part of the scraping plate is in contact fit with the first wedge-shaped block; and the second spring is wound between one side of the guide rod and the outer side of the scraping plate.
As the improvement of the scheme, the device also comprises a secondary filtering component, and the secondary filtering component comprises: the second rotating shaft is rotatably connected between two sides in the working box far away from the blanking hopper; the control frame is fixedly sleeved on the second rotating shaft, and a second filter sheet is fixedly connected to the inner side of the control frame close to the second rotating shaft in the circumferential direction; the magnetic block is fixedly connected to one side, close to the second rotating shaft, in the control frame; the scraping plate is sleeved on the outer circumferential side of the control frame close to the second filter sheet in a sliding mode and is in contact fit with the magnetic block; the first arc-shaped guide rail is fixedly connected to one side of the working box far away from the blanking hopper and the second rotating shaft, and one side of the control frame is slidably sleeved on the first arc-shaped guide rail; and the third spring is connected between one side of the control frame and one side of the working box and sleeved on the first arc-shaped guide rail.
As the improvement of above-mentioned scheme, still include and strike the subassembly, strike the subassembly including: the third rotating shaft is rotatably connected to one side outside the working box; the special-shaped limiting rod is slidably connected to one side of the third rotating shaft far away from the working box in a penetrating manner, and one end of the special-shaped limiting rod is in contact fit with the rotating frame; the eighth spring is connected between the outer side of the special-shaped limiting rod far away from the working box and the inner side of the third rotating shaft; the L-shaped connecting rod is rotatably sleeved on the third rotating shaft, and one end of the L-shaped connecting rod is in sliding fit with one end of the special-shaped limiting rod; the sixth spring is wound between one side in the L-shaped connecting rod and one side in the special-shaped limiting rod; the special-shaped guide rail is fixedly connected to one side outside the L-shaped connecting rod; the knocking rod is rotatably connected to the end part of the L-shaped connecting rod far away from the sixth spring and matched with the rotating frame; the fifth spring is wound between one side of the knocking rod and one side of the special-shaped guide rail; the arc-shaped table is slidably connected to one side of the working box close to the L-shaped connecting rod in a penetrating manner and matched with the special-shaped limiting rod; the third wedge block is fixedly connected to one side, far away from the arc table of the working box, of the third wedge block and is in contact fit with one side of the L-shaped connecting rod; the seventh spring is wound between one side inside the arc-shaped table and one side outside the working box; the sliding rod is fixedly connected to one side of the third rotating shaft close to the working box; the second wedge-shaped block is fixedly connected to one side, close to the sliding rod, of the outer side of the working box and matched with the special-shaped limiting rod; the second arc-shaped guide rail is fixedly connected to one side of the second wedge-shaped block, and the end part of the sliding rod is sleeved on the second arc-shaped guide rail in a sliding manner; the fourth spring is wound between one side, far away from the second arc-shaped guide rail of the second wedge-shaped block, of the second arc-shaped guide rail and one side of the sliding rod; and the stop block is fixedly sleeved on the circumferential direction of one side of the second arc-shaped guide rail and is in contact fit with the knocking rod.
As an improvement of the above scheme, the method further comprises the following steps: the guide block is fixedly connected to one side, close to the outer side of the working box, of the support frame, and a clamping groove is formed in one side of the guide block; the cover plate is placed on one side of the guide block in a sliding mode, and the speed reducing motor is positioned in the cover plate; and the clamping block is fixedly connected to one side in the cover plate close to the guide block and matched with the clamping groove of the guide block.
As an improvement of the scheme, the cover plate is made of iron.
The invention has the following advantages:
1. through pouring the liquid medicine into the unloading subassembly in, start gear motor reversal and drive a filtering component reversal, when a filtering component reversal and unloading subassembly contact, the unloading subassembly makes the liquid medicine drop to a filtering component on, a filtering component then filters the impurity in the liquid medicine, so, need not the manual impurity to the liquid medicine of people and filters, and is more laborsaving.
2. Through secondary filter assembly, can filter the impurity in the liquid medicine once more, so, it is better to the filterable effect of liquid medicine.
3. Through the effect of beating the subassembly, can beat vibrations to the rotating frame, so, can make the better impurity to in the liquid medicine of first cassette filter.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic sectional perspective view of a first embodiment of the present invention.
Fig. 3 is an enlarged perspective view of the present invention a.
Fig. 4 is an enlarged perspective view of the present invention B.
Fig. 5 is a schematic cross-sectional three-dimensional structure of the present invention.
Fig. 6 is an enlarged perspective view of the present invention C.
Fig. 7 is a schematic view of a first partial body structure according to the present invention.
FIG. 8 is a schematic view of a second partial body structure according to the present invention.
Number designation in the figure: 1-a working box, 2-a support frame, 3-a speed reducing motor, 4-a primary filtering component, 41-a first rotating shaft, 42-a transmission device, 43-a rotating frame, 44-a first filter sheet, 5-a blanking component, 51-a blanking hopper, 52-an L-shaped guide plate, 53-a first wedge-shaped block, 54-a u-shaped connecting rod, 55-a first spring, 56-a baffle plate, 6-a guide rod, 7-a scraping plate, 8-a second spring, 9-a secondary filtering component, 91-a first arc-shaped guide rail, 92-a second rotating shaft, 93-a control frame, 94-a third spring, 95-a second filter sheet, 96-a magnetic block, 97-a scraping plate, 10-a special-shaped knocking component, 101-a third rotating shaft, 102-a limiting rod, 103-a second wedge-shaped block, 104-a second arc-shaped guide rail, 105-a sliding rod, 106-a fourth spring, 107-an L-shaped connecting rod, 108-a special-shaped guide rail, 109-a knocking rod, 110-a fifth spring, 111-a stop block, 112-a sixth spring, a seventh wedge-shaped spring, 114-a seventh spring, 11-a guide block, 11-a third wedge-shaped block, 11-shaped block, and 11-a third wedge-shaped block.
Detailed Description
The following further describes the technical solution with reference to specific embodiments, and it should be noted that: the words upper, lower, left, right, etc. used herein to indicate orientation are simply for the location of the illustrated structure in the corresponding figures. The serial numbers of the parts are themselves numbered herein, for example: first, second, etc. are used solely to distinguish one from another as to objects described herein, and do not have any sequential or technical meaning. The application states that: the connection and coupling, unless otherwise indicated, include both direct and indirect connections.
Example 1
The utility model provides a medicinal material high efficiency filter purification equipment during bio-pharmaceuticals, as shown in fig. 1-3, including work box 1, support frame 2, gear motor 3, a filtering component 4 and unloading subassembly 5, 1 rear portion upside of work box is equipped with unloading subassembly 5, 1 outer leading flank lower part left side rigid coupling of work box has support frame 2, installs gear motor 3 on the support frame 2, is equipped with a filtering component 4 between gear motor 3 and 1 upper portion of work box, a filtering component 4 and the cooperation of unloading subassembly 5.
Primary filtering component 4 is including first pivot 41, transmission 42, revolving frame 43 and first cassette 44, the cross-under of rotary type has first pivot 41 between the upper portion front side of the left and right sides of work box 1, be connected with transmission 42 between the output shaft tip of first pivot 41 left end and gear motor 3, transmission 42 comprises belt pulley and flat belt, the rigid coupling of first pivot 41 middle part circumference symmetry formula has revolving frame 43, the inboard rigid coupling of revolving frame 43 has first cassette 44, revolving frame 43 and the cooperation of unloading subassembly 5.
The blanking assembly 5 comprises a blanking hopper 51, an L-shaped guide plate 52, a first wedge-shaped block 53, a u-shaped connecting rod 54, a first spring 55 and a baffle 56, wherein the blanking hopper 51 is fixedly connected in the middle of the upper part of the outer rear side surface of the working box 1, the blanking hopper 51 is communicated with the inside of the working box 1, the L-shaped guide plate 52 is fixedly connected in the middle of the upper part of the outer rear side surface of the working box 1, the L-shaped guide plate 52 is positioned below the blanking hopper 51, the U-shaped connecting rod 54 is slidably connected in a penetrating manner to the upper part of the L-shaped guide plate 52, the front end of the U-shaped connecting rod 54 is fixedly connected with the first wedge-shaped block 53, the first wedge-shaped block 53 is matched with the rotating frame 43, the front end of the first wedge-shaped block 53 penetrates through the working box 1 to be slidably matched with the working box, the first spring 55 is connected between the rear side surface of the first wedge-shaped block 53 and the inner rear side surface of the L-shaped guide plate 52, the first spring 55 is sleeved with the u-shaped connecting rod 54, the baffle 56 is fixedly connected at the front end of the upper part of the u-shaped connecting rod 54, and the baffle 56 penetrates through the lower hopper 51 to be matched with the lower part.
At first, operating personnel pours into unloading subassembly 5 with appropriate amount of liquid medicine into, start gear motor 3 reversal, gear motor 3 reverses and drives a filtering component 4 reversal, a filtering component 4 reversal and unloading subassembly 5 contact, a filtering component 4 drives unloading subassembly 5 function, unloading subassembly 5 function makes the liquid medicine drop to a filtering component 4, a filtering component 4 then filters the impurity in the liquid medicine, the liquid medicine after filtering impurity drops to the bottom in the work box 1, when a filtering component 4 continues the reversal and breaks away from with unloading subassembly 5, unloading subassembly 5 function resets, the liquid medicine then stops to drop, and a filtering component 4 continues to reverse and drives the impurity reversal, when impurity reverses to the front side, impurity drops to subaerial from a filtering component 4, so relapse, can be continuous to filter the impurity in the liquid medicine. After all the impurities in the liquid medicine are filtered, the speed reducing motor 3 is turned off, the primary filtering component 4 stops reversing, and the liquid medicine with the impurities filtered can be taken out from the working box 1.
When a proper amount of liquid medicine is poured into the blanking assembly 5, the speed reduction motor 3 is started to rotate reversely, the speed reduction motor 3 drives the transmission device 42 to rotate reversely in a reverse mode, the transmission device 42 drives the first rotating shaft 41 to rotate reversely, the first rotating shaft 41 drives the rotating frame 43 to rotate reversely, the rotating frame 43 drives the first filtering sheet 44 to rotate reversely in a reverse mode, when the rotating frame 43 rotates reversely to be in contact with the blanking assembly 5, the rotating frame 43 drives the blanking assembly 5 to operate, the liquid medicine drops onto the first filtering sheet 44 due to operation of the blanking assembly 5, the first filtering sheet 44 filters impurities in the liquid medicine, the liquid medicine with the filtered impurities drops to the bottom in the working box 1, the filtered impurities are left on the first filtering sheet 44, the rotating frame 43 continuously rotates reversely to be separated from the blanking assembly 5, the liquid medicine stops dropping, further, the first filtering sheet 44 continuously rotates reversely to drive the impurities to rotate reversely, and the impurities drop to the ground when the impurities rotate to the front side, and the impurities in the liquid medicine are repeatedly filtered. When all the impurities in the liquid medicine are filtered, the speed reducing motor 3 is turned off, the transmission device 42 stops driving the first rotating shaft 41 to rotate reversely, and the rotating frame 43 stops rotating reversely.
Firstly, an operator pours a proper amount of liquid medicine into the lower hopper 51, the baffle 56 blocks the liquid medicine, when the speed reduction motor 3 is started, the first rotating shaft 41 drives the rotating frame 43 to rotate reversely, when the rotating frame 43 rotates reversely to contact with the first wedge-shaped block 53, the rotating frame 43 drives the first wedge-shaped block 53 to move backwards, the first spring 55 is compressed, the first wedge-shaped block 53 moves backwards to drive the u-shaped connecting rod 54 to move backwards, the u-shaped connecting rod 54 moves backwards to drive the baffle 56 to move backwards, the baffle 56 moves backwards to not block the liquid medicine in the lower hopper 51, the liquid medicine drops from the lower hopper 51 to the first filter sheet 44 to filter impurities, when the rotating frame 43 continues to rotate reversely to be separated from the first wedge-shaped block 53, the first wedge-shaped block 53 moves forwards to drive the u-shaped connecting rod 54 to move forwards to reset, the baffle 56 also moves forwards to reset to block the lower hopper 51, and the liquid medicine drops out of the lower hopper 51.
Example 2
On the basis of the embodiment 1, as shown in fig. 1 to 4, the device further comprises a guide rod 6, a scraper 7 and a second spring 8, the guide rod 6 is fixedly connected in the middle of the upper portion of the outer rear side of the work box 1, the guide rod 6 is located above the L-shaped guide plate 52, the scraper 7 is slidably arranged on the guide rod 6, the bottom end of the scraper 7 is in contact fit with the first wedge block 53, and the second spring 8 is wound between the outer top of the scraper 7 and the upper portion of the guide rod 6.
The secondary filter assembly 9 comprises a first arc-shaped guide rail 91, a second rotating shaft 92, a control frame 93, a third spring 94, a second filter sheet 95, a magnetic block 96 and a scraper 97, the second rotating shaft 92 is rotatably connected between the rear sides of the lower parts of the left side surface and the right side surface in the work box 1, the control frame 93 is fixedly connected with the middle part of the second rotating shaft 92 in the circumferential direction, the control frame 93 is matched with the rotating frame 43, the second filter sheet 95 is fixedly connected with the rear part of the inner side surface of the control frame 93, the first arc-shaped guide rail 91 is fixedly connected with the front side of the bottom in the work box 1, the front part of the bottom in the work box 93 is sleeved on the first arc-shaped guide rail 91 in a sliding manner, the scraper 97 is matched with the second filter sheet 95 in a contact manner, the third spring 94 is connected between the front side of the bottom of the control frame 93 and the bottom in the work box 1, the third spring 94 is sleeved on the first arc-shaped guide rail 91, the scraper 97 is slidably connected between the left side and the rear part of the outer side of the control frame 93, the scraper 97 is matched with the second filter sheet 95 in a contact manner, the upper part of the rear side surface of the control frame 93, the upper part of the rear side surface, the rear part of the control frame 93 is sleeved on the upper part, 96, and the magnetic block 97 is matched with the magnetic block 97 in a contact manner.
Initially, the second spring 8 is in a compressed state, when the first wedge-shaped block 53 moves backwards, the inclined surface of the first wedge-shaped block 53 contacts with the scraping plate 7, and along with the continuous backward movement of the first wedge-shaped block 53, the scraping plate 7 continuously moves downwards along the inclined surface of the first wedge-shaped block 53 under the action of the second spring 8, and the scraping plate 7 moves downwards to scrape off impurities on the inclined surface of the first wedge-shaped block 53. When the first wedge-shaped block 53 moves forwards and returns, the first wedge-shaped block 53 drives the scraper plate 7 to move upwards and return, and the second spring 8 compresses. Therefore, the influence of a large amount of impurities left on the first wedge-shaped block 53 on subsequent use can be avoided.
After the liquid medicine is filtered by the first filter sheet 44, the liquid medicine falls onto the second filter sheet 95, the second filter sheet 95 filters impurities in the liquid medicine again, the liquid medicine with the impurities filtered again falls to the bottom in the work box 1, and the impurities are left on the second filter sheet 95, at this time, the rotating frame 43 rotates reversely and contacts with the control frame 93, the rotating frame 43 drives the control frame 93 to swing downwards, the third spring 94 compresses, the control frame 93 swings downwards and drives the scraper 97 to swing downwards, when the scraper 97 swings downwards and contacts with the work box 1, the work box 1 enables the scraper 97 to move forwards for a certain distance, the scraper 97 moves forwards and is separated from the magnetic block 96, because the control frame 93 is in an inclined state, the scraper 97 moves forwards and scrapes the impurities left on the second filter sheet 95, the scraped impurities fall onto the ground from the second filter sheet 95, when the rotating frame 43 continues to rotate reversely and is separated from the control frame 93, the control frame 93 swings upwards and drives the scraper 97 to swing upwards and reset, at this time, the rotating frame 43 contacts with the scraper 97 and the scraper 43 and then drives the scraper 97 to move backwards and further to suck the impurities in the rotating frame 96 repeatedly.
Example 3
On the basis of the embodiment 1 and the embodiment 2, as shown in fig. 1, fig. 5, fig. 6, fig. 7 and fig. 8, the knocking device 10 further comprises a knocking component 10, wherein the knocking component 10 comprises a third rotating shaft 101, a special-shaped limiting rod 102, a second wedge-shaped block 103, a second arc-shaped guide rail 104, a sliding rod 105, a fourth spring 106, an L-shaped connecting rod 107, a special-shaped guide rail 108, a knocking rod 109, a fifth spring 110, a stopper 111, a sixth spring 112, an arc-shaped platform 113, a seventh spring 114, a third wedge-shaped block 115 and an eighth spring 116, the upper front side of the outer right side surface of the work box 1 is rotatably connected with the third rotating shaft 101, the special-shaped limiting rod 102 is slidably connected to the right part of the third rotating shaft 101 in a penetrating manner, the front part of the special-shaped limiting rod 102 is in contact with the rotating frame 43, an eighth spring 116 is connected between the middle part of the outer right side surface of the special-shaped limiting rod 102 and the inner right side surface of the third rotating shaft 101, an L-shaped connecting rod 107 is sleeved on the left part of the third rotating shaft 101 in a circumferential rotating mode, the lower part of the L-shaped connecting rod 107 is connected with the left side of the lower part of the special-shaped limiting rod 102 in a sliding mode, a sixth spring 112 is wound between the rear side of the inner top part of the L-shaped connecting rod 107 and the left side of the inner bottom part of the special-shaped limiting rod 102, a special-shaped guide rail 108 is fixedly connected to the front side of the outer top part of the L-shaped connecting rod 107, a stop block 111 is fixedly connected to the upper part of the special-shaped guide rail 108, a knocking rod 109 is rotatably connected to the front end of the L-shaped connecting rod 107, the left part of the knocking rod 109 is sleeved on the special-shaped guide rail 108 in a sliding mode, a fifth spring 110 is wound between the left side of the bottom part of the knocking rod 109 and the lower part of the special-shaped guide rail 108, an arc-shaped table 113 is movably arranged on the front side of the upper part of the outer right side of the working box 1, a seventh spring 114 is wound between the inner right side surface of the arc-table 113, a third wedge-shaped block 115 is fixedly connected with the rear side of the outer side of the L-shaped connecting rod 107 in a contacting and matching manner, a slide bar 105 is fixedly connected to the left side of the top of the third rotating shaft 101, a second wedge block 103 is fixedly connected to the front side of the upper portion of the outer right side surface of the work box 1, a second arc-shaped guide rail 104 is fixedly connected to the front side surface of the second wedge block 103, the upper portion of the slide bar 105 is slidably sleeved on the second arc-shaped guide rail 104 to be matched with the second arc-shaped guide rail 104, a fourth spring 106 is wound between the upper portion of the front side surface of the slide bar 105 and the front portion of the second arc-shaped guide rail 104, and the second wedge block 103 is matched with the special-shaped limiting rod 102.
Still including guide block 11, apron 12 and fixture block 13, 1 outer leading flank lower part left side rigid couplings of work box have guide block 11, and the bottom left side is opened there is the draw-in groove in the guide block 11, and 11 internal sliding formula of guide block are equipped with apron 12, and gear motor 3 is located apron 12, and 12 internal top rear side left sides rigid couplings have fixture block 13, and fixture block 13 is located the draw-in groove rather than the cooperation.
When the rotating frame 43 rotates reversely to contact with the special-shaped limiting rod 102, the rotating frame 43 drives the special-shaped limiting rod 102 to rotate reversely, the sixth spring 112 is compressed, the special-shaped limiting rod 102 also drives the third rotating shaft 101 to rotate reversely, the third rotating shaft 101 rotates reversely to drive the sliding rod 105 to rotate reversely, the fourth spring 106 is compressed, when the special-shaped limiting rod 102 rotates reversely to contact with the arc-shaped table 113, the special-shaped limiting rod 102 drives the arc-shaped table 113 to move leftwards, the seventh spring 114 is compressed, the arc-shaped table 113 moves leftwards to drive the third wedge-shaped block 115 to move leftwards, the third wedge-shaped block 115 is separated from the L-shaped connecting rod 107, the third wedge-shaped block 115 does not limit the L-shaped connecting rod 107, due to the action of the sixth spring 112, the L-shaped connecting rod 107 rotates reversely to drive the knocking rod 109 to rotate reversely, the knocking rod 109 rotates reversely to knock the rotating frame 43, the rotating frame 43 vibrates to enable the first filter sheet 44 to vibrate, and the first filter sheet 44 to enable impurities to fall better, when the special-shaped limiting rod 102 continuously rotates reversely to be separated from the arc-shaped platform 113, the arc-shaped platform 113 moves rightwards to drive the third wedge-shaped block 115 to move rightwards to reset due to the action of the seventh spring 114, the special-shaped limiting rod 102 rotates reversely to be contacted with the second wedge-shaped block 103, the second wedge-shaped block 103 enables the special-shaped limiting rod 102 to move rightwards, the eighth spring 116 is compressed, the special-shaped limiting rod 102 moves rightwards to be separated from the rotating frame 43, the sliding rod 105 rotates forwards to drive the third rotating shaft 101 to rotate forwards due to the action of the fourth spring 106, the third rotating shaft 101 rotates forwards to drive the special-shaped limiting rod 102 to rotate forwards to reset due to the action of the eighth spring 116, meanwhile, the special-shaped limiting rod 102 drives the L-shaped connecting rod 107 to rotate forwards to reset through the sixth spring 112, the L-shaped connecting rod 107 rotates forwards to reset and slides over the third wedge-shaped block 115, the L-shaped connecting rod 107 drives the knocking rod 109 to rotate forwards, and the knocking rod 109 contacts with the rotating frame 43, the knock lever 109 is normally rotated and slid over the rotation frame 43 to be returned by the fifth spring 110. Thus, the first filter sheet 44 can better filter impurities in the liquid medicine.
When the speed reducing motor 3 is in use, the cover plate 12 can protect the speed reducing motor 3, and further when the speed reducing motor 3 needs maintenance, the cover plate 12 is pulled to move rightwards, the cover plate 12 moves rightwards to drive the clamping block 13 to move rightwards, the clamping block 13 moves rightwards to be separated from the clamping groove of the guide block 11, and after the cover plate 12 moves rightwards to be separated from the guide block 11, the speed reducing motor 3 can be maintained. After the maintenance of the gear motor 3 is completed, the movable cover plate 12 is in contact with the guide block 11, the cover plate 12 is pushed to move leftwards to reset, and the clamping block 13 is matched with the clamping groove of the guide block 11 to clamp the cover plate 12. Therefore, the gear motor 3 can be prevented from being broken by foreign matters.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.