Material stirrer

Abstract

The utility model provides a material stirrer. The material stirrer comprises a stirrer body, the water adding assembly is mounted at the top of the stirring machine body and is provided with a plurality of water outlets, and the water outlets are distributed around an opening in the top end of the stirring machine body in an annular array manner; the water inlet hopper is connected with the water adding assembly, a fixed clamping plate is fixedly connected to one side of the water inlet hopper, a movable clamping plate is arranged at the top of the fixed clamping plate, and a vertical driving mechanism used for driving the movable clamping plate to move up and down is installed above the water inlet hopper; the vertical driving mechanism drives the movable clamping plate to be close to the fixed clamping plate so as to clamp an external water pipe on the fixed clamping plate. By arranging the fixed clamping plate, the movable clamping plate and the vertical driving mechanism, an external water pipe can be clamped, and the problem that the external water pipe slides off from the top of the material stirring machine due to the gravity of the external water pipe and other external forces is solved.

Description

Technical Field

[0001] The utility model relates to the field of material mixing, in particular to a material mixer. Background Art

[0002] A material mixer is a mechanical device widely used in various industrial fields, mainly used for processes such as mixing, stirring, dispersing, and emulsifying various materials. During the material mixing process, adding water is a common operation.

[0003] When a traditional material mixer is in use, during the water addition process with an external water pipe, the water pipe is generally directly placed on the top of the material mixer or held manually by an operator. When the water pipe is directly placed on the top of the material mixer, due to the self - gravity of the water pipe and other external forces, the water pipe is likely to slip from the top of the material mixer, and the water in the water pipe flows outside the material mixer, causing waste. When held manually, during the continuous stirring and processing of materials, it will increase the labor intensity of the staff and waste manpower. Summary of the Utility Model

[0004] The utility model provides a material mixer to solve the technical problem of the lack of limit for the external water pipe.

[0005] The utility model solves the above - mentioned technical problem through the following technical solutions:

[0006] The utility model provides a material mixer, including a mixer body; further including: a water - adding component, the water - adding component is installed on the top of the mixer body, the water - adding component has a plurality of water outlets, and the plurality of water outlets are distributed in an annular array around the top opening of the mixer body; a water inlet hopper, the water inlet hopper is connected to the water - adding component, and a fixed clamping plate is fixedly connected to one side of the water inlet hopper, a movable clamping plate is arranged on the top of the fixed clamping plate, and a vertical driving mechanism for driving the movable clamping plate to move up and down is installed above the water inlet hopper; the vertical driving mechanism drives the movable clamping plate to approach the fixed clamping plate to clamp the external water pipe on the fixed clamping plate; a filter screen plate, the filter screen plate is installed in the water inlet hopper through a self - locking mechanism; an unlocking mechanism, the unlocking mechanism is connected to the movable clamping plate to automatically unlock the self - locking mechanism after the movable clamping plate moves up to the highest position.

[0007] In this technical solution, the water - adding component can provide the function of uniformly adding water around the material mixer; the added water is filtered through the filter screen plate; at the same time, the external water pipe can be clamped and limited through the movable clamping plate, the fixed clamping plate and the vertical driving mechanism to prevent the external water pipe from detaching.

[0008] Preferably, the water adding component includes a circular ring housing and a connecting pipe. The circular ring housing is fixedly connected to the top port of the mixer body, and the circular ring housing and the mixer body are coaxially arranged. The bottom end of the connecting pipe is fixedly connected to one side of the circular ring housing, and the connecting pipe is communicated with the circular ring housing. The water outlet is fixedly connected to the inner wall of the circular ring housing and is communicated with the circular ring housing. The top end of the connecting pipe is fixedly communicated with the bottom port of the water inlet hopper.

[0009] In this technical solution, water enters through the water inlet hopper and is evenly added to the periphery of the top of the mixer body through a plurality of water outlets.

[0010] Preferably, an embedding groove is formed on one side wall of the water inlet hopper, and the embedding groove is aligned with the fixed clamping plate.

[0011] In this technical solution, the embedding groove provides a position and an installation position for an external water pipe to extend into the water inlet hopper.

[0012] Preferably, the vertical driving mechanism includes a support frame, an upper housing, a knob, a guide sleeve, a guide rod, a screw rod, a screw hole, a worm and a worm gear. The support frame is fixedly installed on one side of the top of the water inlet hopper, and the top of the support frame is fixedly connected with the upper housing. The upper housing is internally rotatably installed with the worm gear and the worm. The worm is meshed and connected with the worm gear, and one end of the worm is fixedly connected with the knob. The knob is rotatably installed on the outer wall of the upper housing. The bottom of the upper housing is fixedly connected with the guide sleeve. The guide sleeve is in clearance fit with the guide rod. The bottom end of the guide rod is fixedly connected with the top surface of the movable clamping plate. A screw hole with an open top end is vertically formed in the guide rod, and the screw hole is in threaded connection with the screw rod. The top end of the screw rod is fixedly connected with the middle part of the worm gear.

[0013] In this technical solution, the vertical driving mechanism provides driving for the movable clamping plate to approach or move away from the fixed clamping plate.

[0014] Preferably, the number of the self-locking mechanisms is two, and the two self-locking mechanisms are respectively located on both sides of the filter screen plate. The self-locking mechanism includes a side groove, a second spring and an inclined surface insert. The side groove is formed on the side wall of the filter screen plate. One side of the inclined surface insert is in fit connection with the side groove. The second spring is arranged in the side groove. The filter screen plate and the inclined surface insert are elastically connected through the second spring. The bottom of the side of the inclined surface insert away from the second spring is provided with an inclined surface. Insert slots are formed on the inner walls of the left and right sides of the water inlet hopper, and the side with the inclined surface of the inclined surface insert is inserted into the insert slots.

[0015] In this technical solution, the self-locking mechanism is used for locking when the filter screen plate is installed.

[0016] Preferably, chamfers adapted to the inclined surfaces are arranged on the inner edges of both sides of the top of the water inlet hopper.

[0017] In this technical solution, through the chamfer design, when the filter screen plate is inserted into the water inlet hopper from above, the chamfer squeezes the inclined surface of the inclined surface insert, causing the inclined surface insert to be received into the side groove.

[0018] Preferably, a retaining ring is fixedly connected to the inner wall of the water inlet hopper, and the retaining ring contacts the bottom edge of the filter screen plate; a first spring in a compressed state is arranged inside the water inlet hopper, the bottom end of the first spring abuts against the bottom inner wall of the water inlet hopper, and the top end of the first spring abuts against the bottom surface of the filter screen plate.

[0019] In this technical solution, the retaining ring is used to block the filter screen plate, and after the self-locking mechanism is unlocked, the first spring uses its elastic force to push the filter screen plate above the top of the insertion groove, facilitating the removal of the filter screen plate.

[0020] Preferably, the unlocking mechanism includes two push bars; the two push bars are respectively slidably connected to the two slots, and a connecting rod is fixedly connected to each of the two push bars, a third spring is arranged between the two connecting rods, and the two connecting rods are elastically connected through the third spring.

[0021] In this technical solution, the unlocking mechanism is used to unlock the self-locking mechanism.

[0022] Preferably, a first vertical groove and a horizontal groove are formed in the back side wall of the water inlet hopper, the connecting rod is L-shaped and is placed in the first vertical groove and the horizontal groove, and the top end of the connecting rod extends above the top opening of the first vertical groove; the bottom end of the first vertical groove communicates with the horizontal groove, and both ends of the horizontal groove communicate with the ends of the two slots respectively.

[0023] In this technical solution, the first vertical groove and the horizontal groove provide space for the movement of the push bar.

[0024] Preferably, the unlocking mechanism further includes a vertical bar, a connecting shaft and a magnetic block; the bottom end of the vertical bar is fixedly connected to the top surface of the movable clamping plate, a second vertical groove is formed in the side wall of the guide sleeve, the vertical bar is slidably connected to the second vertical groove, a connecting shaft is fixedly connected to the vertical bar, a magnetic block is fixedly connected to the bottom end of the connecting shaft, and the magnetic block is located between the two connecting rods, and iron blocks are fixedly connected to the top ends of the two connecting rods.

[0025] In this technical solution, the unlocking mechanism is connected to the movable clamping plate, and the up and down movement of the movable clamping plate provides drive for the unlocking mechanism.

[0026] On the basis of conforming to the common knowledge in the art, the above preferred conditions can be combined arbitrarily to obtain various preferred examples of the present invention.

[0027] The positive and progressive effects of the present invention are as follows:

[0028] The above-mentioned material mixer, through the design that the water adding component and a plurality of water outlets on the water adding component are distributed in an annular array around the top opening of the mixer body, during the process of adding water to the mixer body, the water can be evenly added to the periphery of the top opening of the mixer body through the plurality of water outlets, improving the uniformity of water addition; further, a fixed clamping plate, a movable clamping plate and a vertical driving mechanism are arranged on the water inlet hopper, which can provide a clamping effect on the external water pipe, avoiding the problem that the external water pipe slides off the top of the material mixer due to the self-gravity of the external water pipe and other external forces; furthermore, a filter screen plate is arranged inside the water inlet hopper, which can filter the added water, reducing the impurities in the external water from entering the material mixer. The filter screen plate is locked and installed in the water inlet hopper through a self-locking mechanism, and an unlocking mechanism is also arranged, and the unlocking mechanism is connected to the movable clamping plate. When maintaining the filter screen plate, the movable clamping plate is driven to move to the highest position, the clamping of the external water pipe is released, and the external water pipe is removed to prevent blocking the top of the water inlet hopper. During the above process, when the movable clamping plate moves upward to the highest position, it can drive the unlocking mechanism to automatically unlock the self-locking mechanism, eliminating the need for manual unlocking operation, providing convenience for the removal of the filter screen plate. Brief Description of the Drawings

[0029] Figure 1 It is a schematic structural diagram of the whole external part of the present utility model.

[0030] Figure 2 It is a schematic cross-sectional structural diagram of the water adding component and the water inlet hopper of the present utility model.

[0031] Figure 3 It is a schematic structural diagram of the present utility model in the installed state of the filter screen plate.

[0032] Figure 4 For the present utility model Figure 3 It is a schematic enlarged structural diagram of part A in the present utility model.

[0033] Figure 5 It is a schematic structural diagram of the external part of the vertical driving mechanism of the present utility model.

[0034] Figure 6 It is a schematic structural diagram of the vertical driving mechanism of the present utility model.

[0035] Figure 7 It is a schematic structural diagram of the connection between the magnetic block and the movable clamping plate of the present utility model.

[0036] Figure 8 It is a schematic structural diagram inside the wall of the water inlet hopper of the present utility model.

[0037] Description of the Reference Numerals

[0038] 1. Mixer body;

[0039] 2. Water adding component; 201. Ring-shaped housing; 202. Connecting pipe; 203. Water outlet;

[0040] 3. Water inlet hopper; 301. Chamfer; 302. Slot; 303. Retaining ring; 304. Horizontal groove; 305. First vertical groove; 306. Insertion groove;

[0041] 4. Fixed clamping plate;

[0042] 5. Movable clamping plate;

[0043] 6. Vertical driving mechanism; 601. Support frame; 602. Upper housing; 603. Knob; 604. Guide sleeve; 605. Guide rod; 606. Screw; 607. Threaded hole; 608. Worm; 609. Worm gear;

[0044] 7. Filter screen plate;

[0045] 8. First spring;

[0046] 9. Connecting rod; 901. Iron block;

[0047] 10. Self-locking mechanism; 1001. Side groove; 1002. Second spring; 1003. Inclined surface insert;

[0048] 11. Pushing bar;

[0049] 12. Second vertical groove;

[0050] 13. Vertical bar;

[0051] 14. Connecting shaft;

[0052] 15. Magnetic block;

[0053] 16. Third spring;

[0054] a. External water pipe. Detailed implementation manners

[0055] The present utility model will be further described below by way of embodiments, but the present utility model is not limited to the scope of the described embodiments.

[0056] As Figure 1-8As shown in the figure, the material mixer includes a mixer body 1; it further includes: a water adding assembly 2, the water adding assembly 2 is installed on the top of the mixer body 1, the water adding assembly 2 has a plurality of water outlets 203, and the plurality of water outlets 203 are distributed in an annular array around the top opening of the mixer body 1; a water inlet hopper 3, the water inlet hopper 3 is connected to the water adding assembly 2, and a fixed clamping plate 4 is fixedly connected to one side of the water inlet hopper 3, a movable clamping plate 5 is arranged on the top of the fixed clamping plate 4, and a vertical driving mechanism 6 for driving the movable clamping plate 5 to move up and down is installed above the water inlet hopper 3; the vertical driving mechanism 6 drives the movable clamping plate 5 to approach the fixed clamping plate 4 to clamp the external water pipe a on the fixed clamping plate 4; a filter screen plate 7, the filter screen plate 7 is installed in the water inlet hopper 3 through a self-locking mechanism 10; an unlocking mechanism, the unlocking mechanism is connected to the movable clamping plate 5 to automatically unlock the self-locking mechanism 10 after the movable clamping plate 5 moves up to the highest position.

[0057] As Figure 1 , Figure 3 , Figure 5 and Figure 6 As shown in the figure, a slot 306 is opened on one side wall of the water inlet hopper 3, and the slot 306 is aligned with the fixed clamping plate 4; the vertical driving mechanism 6 includes a support frame 601, an upper housing 602, a knob 603, a guide sleeve 604, a guide rod 605, a screw rod 606, a threaded hole 607, a worm 608 and a worm gear 609; the support frame 601 is fixedly installed on the top side of the water inlet hopper 3, and the top of the support frame 601 is fixedly connected with the upper housing 602, a worm gear 609 and a worm 608 are rotatably installed inside the upper housing 602, the worm 608 is meshed and connected with the worm gear 609, and one end of the worm 608 is fixedly connected with the knob 603, the knob 603 is rotatably installed on the outer wall of the upper housing 602, the bottom of the upper housing 602 is fixedly connected with the guide sleeve 604, the guide sleeve 604 is in clearance fit connection with the guide rod 605, the bottom end of the guide rod 605 is fixedly connected with the top surface of the movable clamping plate 5, a threaded hole 607 with a top opening is vertically opened inside the guide rod 605, the threaded hole 607 is in threaded connection with the screw rod 606, and the top end of the screw rod 606 is fixedly connected with the middle part of the worm gear 609.

[0058] In specific implementation, the external water pipe a is placed between the fixed clamping plate 4 and the movable clamping plate 5, passes through the embedding groove 306, and the end of the external water pipe a enters the water inlet hopper 3. By rotating the knob 603 forward, the worm 608 rotates. Through the meshing transmission between the worm 608 and the worm gear 609, the screw rod 606 rotates. The screw rod 606 is screwed with the screw hole 607 on the guide rod 605. With the guidance of the guide rod 605 and the guide sleeve 604, the guide rod 605 drives the movable clamping plate 5 to move downward, and the movable clamping plate 5 approaches the fixed clamping plate 4. The external water pipe a is clamped by the movable clamping plate 5 and the fixed clamping plate 4 for fixation. When the knob 603 is rotated in the reverse direction, through the transmission of the above structure, the guide rod 605 drives the movable clamping plate 5 to move away from the fixed clamping plate 4 to release the clamping of the external water pipe a, and the external water pipe a can be removed from the water inlet hopper 3.

[0059] As Figure 1-2 shown, the water adding assembly 2 includes a circular ring housing 201 and a connecting pipe 202. The circular ring housing 201 is fixedly connected to the top port of the mixer body 1, and the circular ring housing 201 and the mixer body 1 are coaxially arranged. The bottom end of the connecting pipe 202 is fixedly connected to one side of the circular ring housing 201, and the connecting pipe 202 is communicated with the circular ring housing 201. The water outlet 203 is fixedly connected to the inner wall of the circular ring housing 201, and the water outlet 203 is communicated with the circular ring housing 201. The top end of the connecting pipe 202 is fixedly communicated with the bottom port of the water inlet hopper 3.

[0060] When the external water pipe a is clamped at the water inlet hopper 3 and water is added to the mixer body 1, the water in the external water pipe a enters the water inlet hopper 3, passes through the connecting pipe 202, then enters the circular ring housing 201, and then is evenly added to each position around the top of the mixer body 1 through a plurality of water outlets 203, ensuring the uniformity of water addition.

[0061] As Figure 3-4As shown, the number of the self-locking mechanisms 10 is two, and the two self-locking mechanisms 10 are respectively located on both sides of the filter screen plate 7; the self-locking mechanism 10 includes a side groove 1001, a second spring 1002 and an inclined surface insert 1003; the side groove 1001 is opened on the side wall of the filter screen plate 7, one side of the inclined surface insert 1003 is connected with the side groove 1001 in a matching manner, the second spring 1002 is arranged in the side groove 1001, the filter screen plate 7 and the inclined surface insert 1003 are elastically connected through the second spring 1002, and an inclined surface is arranged at the bottom of the side of the inclined surface insert 1003 away from the second spring 1002; slots 302 are opened on the inner walls of the left and right sides of the water inlet hopper 3, and the side of the inclined surface insert 1003 with the inclined surface is inserted into the slots 302; chamfers 301 adapted to the inclined surface are arranged on the inner edges of the top sides of the water inlet hopper 3; a retaining ring 303 is fixedly connected to the inner wall of the water inlet hopper 3, and the retaining ring 303 contacts the bottom edge of the filter screen plate 7; a first spring 8 in a compressed state is arranged inside the water inlet hopper 3, the bottom end of the first spring 8 abuts against the bottom inner wall of the water inlet hopper 3, and the top end of the first spring 8 abuts against the bottom surface of the filter screen plate 7.

[0062] As Figure 7-8 shown, the unlocking mechanism includes two push bars 11; the two push bars 11 are respectively slidably connected into the two slots 302, a connecting rod 9 is fixedly connected to each of the two push bars 11, a third spring 16 is arranged between the two connecting rods 9, and the two connecting rods 9 are elastically connected through the third spring 16; a first vertical groove 305 and a transverse groove 304 are opened in the back side wall of the water inlet hopper 3, the connecting rod 9 is L-shaped and is placed in the first vertical groove 305 and the transverse groove 304, and the top end of the connecting rod 9 extends above the top opening of the first vertical groove 305; the bottom end of the first vertical groove 305 is communicated with the transverse groove 304, and the two ends of the transverse groove 304 are respectively communicated with the ends of the two slots 302; the unlocking mechanism further includes a vertical bar 13, a connecting shaft 14 and a magnet 15; the bottom end of the vertical bar 13 is fixedly connected to the top surface of the movable clamping plate 5, a second vertical groove 12 is opened on the side wall of the guide sleeve 604, the vertical bar 13 is slidably connected with the second vertical groove 12, the vertical bar 13 is fixedly connected to the connecting shaft 14, the bottom end of the connecting shaft 14 is fixedly connected to the magnet 15, and the magnet 15 is located between the two connecting rods 9, and iron blocks 901 are fixedly connected to the top ends of the two connecting rods 9.

[0063] The installation steps of the filter screen plate 7 are as follows. Before the external water pipe a is clamped and installed on the water inlet hopper 3, the movable clamping plate 5 is at the highest position. Manually drive the movable clamping plate 5 downward. The movable clamping plate 5 drives the vertical bar 13 to move downward together. The vertical bar 13 drives the magnet block 15 to move downward through the connecting shaft 14, so that the magnet block 15 disengages from between the two iron blocks 901, causing the iron blocks 901 to lose magnetic attraction. Through the action of the third spring 16 between the two connecting rods 9, the connecting rod 9 drives the push bar 11 to move deep into the slot 302, that is, to move to the state as shown in Figure 4 Then align the filter screen plate 7 with the top opening of the water inlet hopper 3. Press down the filter screen plate 7. Through the chamfer 301, squeeze the inclined surface of the inclined surface insert 1003, so that the inclined surface insert 1003 moves into the side slot 1001. The inclined surface insert 1003 is received in the side slot 1001, and at the same time, the second spring 1002 is compressed. The filter screen plate 7 moves downward until the bottom surface of the filter screen plate 7 contacts the retaining ring 303. At this time, the inclined surface insert 1003 is aligned with the slot 302. Through the elastic force of the second spring 1002, the inclined surface insert 1003 is inserted into the slot 302 to realize the locking installation of the filter screen plate 7. At the same time, the filter screen plate 7 moves downward to compress the first spring 8, causing the first spring 8 to produce a compressive deformation.

[0064] In the above, before completing the clamping and installation of the external water pipe a, install the filter screen plate 7. Then place the external water pipe a between the movable clamping plate 5 and the fixed clamping plate 4. Then drive the movable clamping plate 5 downward to clamp the external water pipe a through the movable clamping plate 5 and the fixed clamping plate 4.

[0065] During long-term use, the filter screen plate 7 needs to be cleaned and maintained. Drive the movable clamping plate 5 upward to the highest position. The movable clamping plate 5 drives the vertical bar 13 to move upward. The vertical bar 13 drives the magnet block 15 to move upward through the connecting shaft 14. The magnet block 15 moves between the two iron blocks 901. The magnet block 15 magnetically attracts the two iron blocks 901, causing the two connecting rods 9 to approach each other, and at the same time compressing the third spring 16. The connecting rod 9 drives the push bar 11 to move out of the slot 302. The push bar 11 pushes the inclined surface insert 1003 out of the slot 302 to automatically unlock the self-locking mechanism 10. Through the compressive elastic force of the first spring 8, push the filter screen plate 7 upward so that the height of the filter screen plate 7 is higher than the height of the bottom of the embedded slot 306. After removing the external water pipe a, manually pinch the filter screen plate 7 from the embedded slot 306 and pull up the filter screen plate 7 to remove it. Then clean it. After cleaning, it can be reinstalled through the installation steps of the filter screen plate 7 mentioned above.

[0066] The present utility model is not limited to the above-described embodiments. No matter what changes are made in its shape or structure, they all fall within the protection scope of the present utility model. The protection scope of the present utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present utility model, but these changes and modifications all fall within the protection scope of the present utility model.

Claims

1. A material mixer, comprising a mixer body (1); characterized in that: Also includes: A water adding assembly (2), the water adding assembly (2) being mounted on the top of the mixer body (1), the water adding assembly (2) having a plurality of water outlets (203), and the plurality of water outlets (203) being distributed in a circular array around the top opening of the mixer body (1); a water inlet hopper (3), the water inlet hopper (3) being connected to the water adding assembly (2), and a fixed clamping plate (4) being fixedly connected to one side of the water inlet hopper (3), a movable clamping plate (5) being arranged on the top of the fixed clamping plate (4), and a movable clamping plate (6) being arranged on the top of the water inlet hopper (3). A vertical driving mechanism (6) is provided for driving the movable clamping plate (5) to move up and down; the vertical driving mechanism (6) drives the movable clamping plate (5) to approach the fixed clamping plate (4) so ​​as to clamp the external water pipe (a) on the fixed clamping plate (4); a filter screen plate (7), the filter screen plate (7) is installed in the water inlet bucket (3) through a self-locking mechanism (10); and an unlocking mechanism, the unlocking mechanism is connected to the movable clamping plate (5) so as to automatically unlock the self-locking mechanism (10) after the movable clamping plate (5) moves up to the highest position.

2. The material mixer according to claim 1, characterized in that: The water adding assembly (2) comprises an annular shell (201) and a connecting pipe (202); the annular shell (201) is fixedly connected to the top port of the mixer body (1), and the annular shell (201) and the mixer body (1) are coaxially arranged; the bottom end of the connecting pipe (202) is fixedly connected to one side of the annular shell (201), and the connecting pipe (202) is in communication with the annular shell (201); the water outlet (203) is fixedly connected to the inner wall of the annular shell (201), and the water outlet (203) is in communication with the annular shell (201); and the top end of the connecting pipe (202) is fixedly connected to the bottom port of the water inlet hopper (3).

3. The material mixer according to claim 1, characterized in that: A side wall of the water inlet bucket (3) is provided with an embedding groove (306), and the embedding groove (306) is aligned with the fixing clamping plate (4).

4. The material mixer according to claim 1, characterized in that: The vertical drive mechanism (6) comprises a support frame (601), an upper shell (602), a knob (603), a guide sleeve (604), a guide rod (605), a screw (606), a screw hole (607), a worm (608) and a worm wheel (609); the support frame (601) is fixedly mounted to one side of the top of the water inlet bucket (3), and the top of the support frame (601) is fixedly connected to the upper shell (602), and a worm wheel (609) and a worm (608) are rotatably mounted inside the upper shell (602), and the worm (608) is meshedly connected to the worm wheel (609), and the worm (608) is meshedly connected to the worm wheel (609). A knob (603) is fixedly connected to one end of the rod (608), and the knob (603) is rotatably mounted on the outer wall of the upper shell (602). A guide sleeve (604) is fixedly connected to the bottom of the upper shell (602), and the guide sleeve (604) is loosely connected to a guide rod (605). The bottom end of the guide rod (605) is fixedly connected to the top surface of the movable splint (5). A screw hole (607) with an opening at the top is vertically opened in the guide rod (605), and the screw hole (607) is threadedly connected to the screw rod (606), and the top end of the screw rod (606) is fixedly connected to the middle of the worm gear (609).

5. The material mixer according to claim 4, characterized in that: The number of the self-locking mechanisms (10) is two, and the two self-locking mechanisms (10) are respectively located on both sides of the filter screen plate (7); the self-locking mechanism (10) comprises a side groove (1001), a second spring (1002) and an inclined surface inserting strip (1003); the side groove (1001) is opened on the side wall of the filter screen plate (7), one side of the inclined surface inserting strip (1003) is matched and connected with the side groove (1001), the second spring (1002) is arranged in the side groove (1001), the filter screen plate (7) and the inclined surface inserting strip (1003) are elastically connected through the second spring (1002), and a slope is arranged at the bottom of a side of the inclined surface inserting strip (1003) away from the second spring (1002); slots (302) are opened on the inner walls on both sides of the water inlet hopper (3), and the side of the inclined surface of the inclined surface inserting strip (1003) is inserted into the slot (302).

6. The material mixer according to claim 5, characterized in that: The inner edges of both sides of the top of the water inlet bucket (3) are both provided with chamfers (301) adapted to the inclined surface.

7. The material mixer according to claim 1, characterized in that: A retaining ring (303) is fixedly connected to the inner wall of the water inlet hopper (3), and the retaining ring (303) is in contact with the bottom edge of the filter screen plate (7); a first spring (8) in a compressed state is arranged inside the water inlet hopper (3), and the bottom end of the first spring (8) abuts against the bottom inner wall of the water inlet hopper (3), and the top end of the first spring (8) abuts against the bottom surface of the filter screen plate (7).

8. The material mixer according to claim 5, characterized in that: The unlocking mechanism comprises two push bars (11); the two push bars (11) are respectively slidably connected to two slots (302); the two push bars (11) are each fixedly connected to a connecting rod (9); a third spring (16) is arranged between the two connecting rods (9); and the two connecting rods (9) are elastically connected via the third spring (16).

9. The material mixer according to claim 8, characterized in that: A first vertical groove (305) and a transverse groove (304) are provided in the back wall of the water inlet hopper (3); the connecting rod (9) is L-shaped and is placed in the first vertical groove (305) and the transverse groove (304); the top end of the connecting rod (9) extends above the top opening of the first vertical groove (305); the bottom end of the first vertical groove (305) is connected to the transverse groove (304), and the two ends of the transverse groove (304) are respectively connected to the ends of the two slots (302).

10. The material mixer according to claim 9, characterized in that: The unlocking mechanism also includes a vertical bar (13), a connecting shaft (14) and a magnetic block (15); the bottom end of the vertical bar (13) is fixedly connected to the top surface of the movable splint (5); a second vertical groove (12) is provided on the side wall of the guide sleeve (604); the vertical bar (13) is slidably connected to the second vertical groove (12); the vertical bar (13) is fixedly connected to the connecting shaft (14); the bottom end of the connecting shaft (14) is fixedly connected to the magnetic block (15); and the magnetic block (15) is located between the two connecting rods (9); and the top ends of the two connecting rods (9) are fixedly connected to iron blocks (901).

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