Self-locking anti-smashing turning cover and mixing cylinder

Abstract

The utility model provides a self-locking anti-smashing turning cover and a mixing cylinder. The self-locking anti-smashing flip cover comprises a cover body, a fixed seat, a flip seat, a locking assembly and a traction assembly, one end of the overturning seat is rotationally connected with the fixed seat, the other end of the overturning seat is fixedly connected with one end of the cover body, and a plurality of positioning holes are formed in the fixed seat; the locking assembly comprises a guide cylinder, a lock pin and a pushing spring, and one end of the guide cylinder is fixedly arranged on the overturning seat; one end of the lock pin penetrates through the guide cylinder and is inserted into one of the positioning holes, and the other end of the lock pin extends out of the other end of the guide cylinder; a thrust plate is arranged on the lock pin and located in the guide cylinder, one end of the pushing spring abuts against the thrust plate, and the other end of the pushing spring abuts against the inner wall of the other end of the guide cylinder; and one end of the traction assembly is fixedly connected with the other end of the lock pin, the other end of the traction assembly is a free end, the traction assembly can control the insertion and extraction process of the lock pin more quickly by pulling the free end, and use by operators is more convenient.

Description

Technical Field

[0001] The present disclosure relates to the technical field of laboratory equipment, and in particular to a self-locking anti-smashing flip cover and a mixing tank. Background Art

[0002] The research and development of new energy materials often requires mixing small amounts of specialty powders or coatings for laboratory use. Currently, these mixing tanks are typically smaller than 20L. Due to the heavy lids, they can easily close under gravity after being opened, potentially injuring operators. To address this issue, some manufacturers have developed further solutions.

[0003] For example, Chinese patent document CN216240192U discloses a flip-type opening and closing door structure of a powder coating bonding mixer, including a flip door, the middle part of the upper end of the flip door is fixedly connected to the left side of the lower end of the first connecting plate, the first connecting shaft is fixedly sleeved inside the left side of the first connecting plate, the front and rear sides of the upper end of the bottom plate are respectively fixedly connected to support rods, the two groups of protective boxes are respectively fixedly connected to the right side of the rear end of the second connecting plate, the upper end of the limit gear is clamped with the limit rod, the upper end of the spring is fixedly connected to the upper end of the protective box, and the limit rod is movably connected to the through groove.

[0004] However, the design of the flip-type opening and closing door structure of the powder coating bonding mixer has the following problems:

[0005] Although the above-mentioned flip-type opening and closing door structure of the powder coating bonding mixer can prevent the flip door from closing accidentally by clamping the limit gear through the limit rod, when the flip door needs to be closed normally, the limit rod will still interfere with the rotation of the limit gear and hinder the normal closing of the flip door. This makes it necessary to use an extra hand to lift the limit rod while pushing the flip door to flip smoothly every time the flip door is closed normally, which causes inconvenience in use. Utility Model Content

[0006] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a self-locking, anti-smashing flip cover and a mixing tank that can avoid accidental closure and are easy to use.

[0007] The purpose of this disclosure is achieved through the following technical solutions:

[0008] A self-locking anti-smashing flip cover comprises a cover body, a fixing base and a flip base, wherein the fixing base is mounted on the cylinder body of the mixing cylinder, and the cover body is arranged to cover the opening of the cylinder body; one end of the flip base is rotatably connected to the fixing base, and the other end of the flip base is fixedly connected to one end of the cover body, and a plurality of positioning holes are opened on the fixing base;

[0009] The self-locking anti-smashing flip cover also includes a locking component and a pulling component;

[0010] The locking assembly includes a guide cylinder, a lock pin and a push spring, one end of the guide cylinder is fixed on the flip seat; one end of the lock pin passes through the guide cylinder and is inserted into one of the positioning holes, and the other end of the lock pin extends to the outside of the other end of the guide cylinder; a thrust plate is provided on the lock pin, and the thrust plate is located in the guide cylinder, one end of the push spring abuts against the thrust plate, and the other end of the push spring abuts against the inner wall of the other end of the guide cylinder; one end of the pulling assembly is fixedly connected to the other end of the lock pin, and the other end of the pulling assembly is a free end.

[0011] In one embodiment, the number of the flip seats, the number of the fixed seats and the number of the locking assemblies are all two, the two fixed seats are arranged opposite to each other, the two flip seats are located on the inner sides of the two fixed seats, one end of each guide cylinder is fixed to the corresponding flip seat, the other ends of the two guide cylinders are arranged facing each other, and one end of the pulling assembly is fixedly connected to the other ends of the two locking pins.

[0012] In one embodiment, the pulling assembly includes a traction mechanism and a synchronous stretching mechanism, and the synchronous stretching mechanism includes two connecting rods, one end of each connecting rod is fixedly connected to the other end of the corresponding locking pin, the middle of the two connecting rods are crossed and rotatably connected, and one end of the traction mechanism is fixedly connected to the other end of the two connecting rods.

[0013] In one embodiment, the connecting rod includes a stretching portion and a traction portion, one end of the stretching portion is fixedly connected to the other end of the locking pin, the other end of the stretching portion is fixedly connected to one end of the traction portion, the middle parts of the two traction portions are crossed and rotatably connected, and one end of the traction mechanism is fixedly connected to the other ends of the two traction portions.

[0014] In one embodiment, the angle between the stretching portion and the pulling portion is greater than 90 degrees.

[0015] In one embodiment, the traction mechanism includes a pull rod and a connecting member; one end of the connecting member is fixedly connected to one end of the pull rod, and the other end of the connecting member is fixedly connected to the other ends of the two connecting rods.

[0016] In one embodiment, the connecting member includes a connecting frame, a pulley and a traction rope; one side of the connecting frame is fixedly connected to one end of the pull rod, the pulley is installed in the connecting frame, the traction rope is sleeved on the pulley, and the two ends of the traction rope are respectively fixedly connected to the other ends of the two connecting rods.

[0017] In one embodiment, the traction mechanism further includes a pull ring; the pull ring is fixed to the other end of the pull rod.

[0018] In one embodiment, the self-locking anti-smashing flip cover further includes a lifting handle; the lifting handle is fixed to an end portion of the cover body away from one end of the flip seat.

[0019] A mixing cylinder comprises a cylinder body and a self-locking, anti-smashing flip cover according to any one of the above embodiments.

[0020] Compared with the prior art, the present disclosure has at least the following advantages:

[0021] 1) By securing one end of the guide cylinder to the flip seat, and with one end of the push spring abutting against the thrust plate on the lock pin, and the other end of the push spring abutting against the inner wall of the other end of the guide cylinder, one end of the lock pin can pass through the guide cylinder under the action of elastic force and be securely inserted into one of the positioning holes on the fixed seat, thereby maintaining relative stillness between the fixed seat and the flip seat, thereby reducing the risk of the cover accidentally closing and injuring the operator. Furthermore, because one end of the pulling assembly is fixedly connected to the other end of the lock pin, and the other end of the pulling assembly is free, the operator can pull the free end, thereby removing the lock pin from the positioning hole via the pulling assembly, thereby switching the fixed seat and the flip seat to a relatively rotatable state, thereby pushing the cover to smoothly flip over and cover the opening of the cylinder body.

[0022] 2) Compared to the prior art flip-top door structures for powder coating bonding mixers, the self-locking, anti-smash flip-top lid described above allows the operator to pull the free end to force the locking pin to remain withdrawn from the positioning hole, overcoming the elastic force. This quickly releases the locking pin from the flip seat and the fixed seat. The fixed and flip seats can then rotate relative to each other, allowing the operator to smoothly push the lid to flip over the cylinder opening. The pulling assembly allows for faster control of the locking pin insertion and removal process, effectively reducing the chance of the locking pin obstructing the normal closing of the flip door and providing greater convenience for the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 This is a structural diagram of a self-locking anti-smashing flip cover according to an embodiment of the present disclosure;

[0025] Figure 2 for Figure 1 A partial cross-sectional structural diagram of the self-locking anti-smashing flip cover shown;

[0026] Figure 3 for Figure 1 A partial enlarged view shown in the middle;

[0027] Figure 4 This is a schematic structural diagram of a mixing tank according to another embodiment of the present disclosure.

[0028] Figure numerals: 10, mixing cylinder; 100, self-locking anti-smashing flip cover; 110, cover body; 1110, flip seat; 1120, handle; 120, fixing seat; 1211, positioning hole; 130, locking assembly; 1310, guide cylinder; 1320, locking pin; 1321, thrust plate; 1330, push spring; 140, pulling assembly; 1410, traction mechanism; 1411, pull rod; 1412, connecting piece; 141a, connecting frame; 141b, pulley; 141c, traction rope; 1413, pull ring; 1420, synchronous stretching mechanism; 1421, connecting rod; 142a, stretching part; 142b, traction part; 200, cylinder body; 201, opening. DETAILED DESCRIPTION

[0029] To facilitate understanding of the present disclosure, a more comprehensive description of the present disclosure will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present disclosure. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure.

[0030] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this disclosure pertains. The terms used herein in the specification of this disclosure are intended only to describe specific embodiments and are not intended to limit this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] In order to better understand the technical solutions and beneficial effects of the present disclosure, the present disclosure is further described in detail below with reference to specific embodiments:

[0033] like Figure 1 and Figure 2As shown, the self-locking anti-smashing flip cover 100 of an embodiment includes a cover body 110, a fixed seat 120, a flip seat 1110, a locking assembly 130 and a pulling assembly 140; the fixed seat 120 is installed on the cylinder body 200 of the mixing tank 10, and the cover body 110 is covered at the opening 201 of the cylinder body 200; one end of the flip seat 1110 is rotatably connected to the fixed seat 120, and the other end of the flip seat 1110 is fixedly connected to one end of the cover body 110, and a plurality of positioning holes 1211 are opened on the fixed seat 120; the locking assembly 130 includes a guide cylinder 1310, a lock pin 1320 and a push spring 1330, and the guide cylinder 1 One end of 310 is fixed on the flip seat 1110; one end of the locking pin 1320 passes through the guide cylinder 1310 and is inserted into one of the positioning holes 1211, and the other end of the locking pin 1320 extends to the outside of the other end of the guide cylinder 1310; a thrust plate 1321 is provided on the locking pin 1320, and the thrust plate 1321 is located in the guide cylinder 1310, one end of the pushing spring 1330 abuts against the thrust plate 1321, and the other end of the pushing spring 1330 abuts against the inner wall of the other end of the guide cylinder 1310; one end of the pulling assembly 140 is fixedly connected to the other end of the locking pin 1320, and the other end of the pulling assembly 140 is a free end.

[0034] It can be understood that by fixing one end of the guide cylinder 1310 on the flip seat 1110, since one end of the push spring 1330 abuts against the thrust plate 1321 on the lock pin 1320, and the other end of the push spring 1330 abuts against the inner wall of the other end of the guide cylinder 1310, one end of the lock pin 1320 can pass through the guide cylinder 1310 under the action of elastic force and be firmly inserted into one of the positioning holes 1211 on the fixed seat 120, so that the fixed seat 120 and the flip seat 1110 can remain relatively stationary, thereby reducing the occurrence of the cover body 110 closing by mistake and injuring the operator. Because one end of the pulling assembly 140 is fixedly connected to the other end of the locking pin 1320, the other end of the pulling assembly 140 is a free end. The operator can pull the free end to pull the locking pin 1320 out of the positioning hole 1211 through the pulling assembly 140, so that the fixed seat 120 and the flip seat 1110 are switched to a relatively rotatable state, thereby pushing the cover body 110 to smoothly flip and cover the opening 201 of the cylinder body 200.

[0035] It can be understood that, compared with the flip-type opening and closing door structure of the powder coating bonding mixer in the prior art, the self-locking anti-smashing flip cover 100 described above, when it is necessary to close normally, the operator can pull the free end so that the lock pin 1320 overcomes the elastic force and remains continuously pulled out of the positioning hole 1211, thereby quickly releasing the lock of the lock pin 1320 between the flip seat 1110 and the fixed seat 120. At this time, the fixed seat 120 and the flip seat 1110 can rotate relative to each other, and the operator can smoothly push the cover body 110 to flip and cover the opening 201 of the cylinder body 200. The pulling assembly 140 can more quickly control the insertion and removal process of the lock pin 1320, thereby effectively reducing the occurrence of the lock pin 1320 hindering the normal closing of the flip door, and making it more convenient for the operator to use.

[0036] Combine Figure 1 and Figure 3 As shown, in one embodiment, the number of the flip seats 1110, the number of the fixed seats 120, and the number of the locking assemblies 130 are all two. The two fixed seats 120 are arranged opposite each other, and the two flip seats 1110 are located inside the two fixed seats 120. One end of each guide cylinder 1310 is fixed to the corresponding flip seat 1110, and the other ends of the two guide cylinders 1310 are arranged facing each other. One end of the pulling assembly 140 is fixedly connected to the other ends of the two locking pins 1320. It can be understood that because the two flip seats 1110 are arranged inside the two fixed seats 120 and one end of each guide cylinder 1310 is fixed to the corresponding flip seat 1110, each flip seat 1110 on the cylinder body 200 can be fixed to the corresponding fixed seat 120 on the cover body 110 via the locking pins 1320, thereby improving the connection strength between the cylinder body 200 and the cover body 110 and making it more durable.

[0037] Combine Figure 1 and Figure 3 As shown, in this embodiment, the pulling assembly 140 includes a pulling mechanism 1410 and a synchronous stretching mechanism 1420. The synchronous stretching mechanism 1420 includes two connecting rods 1421. One end of each connecting rod 1421 is fixedly connected to the other end of the corresponding locking pin 1320. The middle of the two connecting rods 1421 crosses and is rotatably connected. One end of the pulling mechanism 1410 is fixedly connected to the other end of the two connecting rods 1421. It can be understood that since one end of each connecting rod 1421 is fixedly connected to the other end of the corresponding locking pin 1320, and one end of the pulling mechanism 1410 is fixedly connected to the other end of the two connecting rods 1421, when the operator pulls the pulling mechanism 1410, the pulling mechanism 1410 can simultaneously pull the two locking pins 1320 through the synchronous stretching mechanism 1420, thereby simplifying the operation steps and improving work efficiency.

[0038] Combine Figure 1 and Figure 3As shown, specifically, the connecting rod 1421 includes a stretching portion 142a and a traction portion 142b, one end of the stretching portion 142a is fixedly connected to the other end of the locking pin 1320, the other end of the stretching portion 142a is fixedly connected to one end of the traction portion 142b, the middle parts of the two traction portions 142b are crossed and rotatably connected, and one end of the traction mechanism 1410 is fixedly connected to the other ends of the two traction portions 142b. It can be understood that by fixing one end of the stretching portion 142a to the other end of the locking pin 1320, since the middle parts of the two traction portions 142b are crossed and rotationally connected, and one end of the traction mechanism 1410 is fixedly connected to the other ends of the two traction portions 142b, when the operator pulls the traction mechanism 1410, the traction mechanism 1410 can pull the two traction portions 142b so that the two traction portions 142b are relatively close to each other. At this time, the two stretching portions 142a are also relatively close and pull a locking pin 1320 respectively, so that each flip seat 1110 on the cover body 110 and the corresponding fixed seat 120 on the cylinder body 200 can be released at the same time, which is more convenient to use.

[0039] Combine Figure 3 As shown, further, the angle between the stretching portion 142a and the pulling portion 142b is greater than 90 degrees. It can be understood that because the angle between the stretching portion 142a and the pulling portion 142b is greater than 90 degrees, the tension exerted on each stretching portion 142a can be transmitted laterally through the pulling portion 142b, thereby reducing the deviation between the sliding direction of the locking pin 1320 and the direction of the force applied, ultimately allowing the locking pin 1320 to be pulled more smoothly. The angle between the stretching portion 142a and the pulling portion 142b can be 90 degrees, 145 degrees, or 160 degrees, of course, this is not limited here, and those skilled in the art can also make other choices as needed.

[0040] Combine Figure 3 As shown, in one embodiment, the traction mechanism 1410 includes a pull rod 1411 and a connecting member 1412; one end of the connecting member 1412 is fixedly connected to one end of the pull rod 1411, and the other end of the connecting member 1412 is fixedly connected to the other ends of two connecting rods 1421. It can be understood that since one end of the connecting member 1412 is fixedly connected to one end of the pull rod 1411, and the other end of the connecting member 1412 is fixedly connected to the other ends of the two connecting rods 1421, when the operator pulls the pull rod 1411, the pull rod 1411 can simultaneously pull the two connecting rods 1421 to move through the connecting member 1412, and each connecting rod 1421 pulls a locking pin 1320, so that each flip seat 1110 can be quickly locked with the corresponding fixed seat 120 on the cover body 110, and ultimately further simplifying the operation process.

[0041] Combine Figure 3As shown, in this embodiment, the connecting member 1412 includes a connecting frame 141a, a pulley 141b, and a traction rope 141c. One side of the connecting frame 141a is fixedly connected to one end of the pull rod 1411. The pulley 141b is mounted within the connecting frame 141a. The traction rope 141c is sleeved on the pulley 141b. The two ends of the traction rope 141c are respectively fixedly connected to the other ends of the two connecting rods 1421. It can be understood that because the pulley 141b is mounted within the connecting frame 141a fixed to one end of the pull rod 1411, and the traction rope 141c is sleeved on the pulley 141b, and the two ends of the traction rope 141c are respectively fixedly connected to the other ends of the two connecting rods 1421, the traction rope 141c can slide on the pulley 141b to adjust its position in real time, so that the pulling force of the traction rope 141c on the two connecting rods 1421 remains consistent, thereby maintaining the synchronous operation of the two locking pins 1320.

[0042] Combine Figure 1 As shown, in one embodiment, the traction mechanism 1410 further includes a pull ring 1413; the pull ring 1413 is fixed to the other end of the pull rod 1411. It can be understood that by fixing the pull ring 1413 to the other end of the pull rod 1411, it is easier for the operator to grasp, thereby achieving a labor-saving and comfortable effect.

[0043] Combine Figure 1 As shown, in one embodiment, the self-locking anti-smash flip cover 100 further includes a handle 1120; the handle 1120 is fixed to the end of the cover body 110 away from the flip seat 1110. It can be understood that by fixing the handle 1120 to the end of the cover body 110 away from the flip seat 1110, it is easier for the operator to grasp it, thereby enabling the cover body 110 to be lifted more quickly, further improving the convenience of use.

[0044] Combine Figure 1 and Figure 4 As shown, the present disclosure further provides a mixing cylinder 10, comprising a cylinder body 200 and a self-locking, anti-smashing flip cover 100 according to any of the above-mentioned embodiments. It can be understood that by applying the self-locking, anti-smashing flip cover 100 of the present disclosure to the mixing cylinder 10, that is, by fixing the fixing seat 120 on the cylinder body 200, an operator can pull the free end, thereby extracting the locking pin 1320 from the positioning hole 1211 through the pulling assembly 140, so that the fixing seat 120 and the flip seat 1110 are switched to a state where they can rotate relative to each other, thereby facilitating the operator to push the cover 110 to close normally.

[0045] In one embodiment, for better understanding, the use process of the mixing tank 10 is described as follows:

[0046] As shown in the combined figure and the figure, the operator first pulls the free end to release the lock of the locking pin 1320 between the flip seat 1110 and the fixed seat 120, and at the same time pushes the cover body 110 to flip upward to open the opening 201 of the cylinder body 200, then releases the free end to lock the flip seat 1110 and the fixed seat 120, so that the cover body 110 remains in the lifted state, and then pours the predetermined type of powder or paint into the cylinder body 200 from the opening 201 of the cylinder body 200 according to the experimental needs, and then holds the free end again to release the lock of the locking pin 1320 between the flip seat 1110 and the fixed seat 120, and at the same time pushes the cover body 110 to flip downward to cover the opening 201 of the cylinder body 200, and finally starts the mixing tank 10 to mix the predetermined type of powder or paint to obtain the new energy material.

[0047] Compared with the prior art, the present disclosure has at least the following advantages:

[0048] 1) By fixing one end of the guide cylinder 1310 on the flip seat 1110, one end of the push spring 1330 abuts against the thrust plate 1321 on the lock pin 1320, and the other end of the push spring 1330 abuts against the inner wall of the other end of the guide cylinder 1310, one end of the lock pin 1320 can pass through the guide cylinder 1310 under the action of elastic force and be firmly inserted into one of the positioning holes 1211 on the fixed seat 120, so that the fixed seat 120 and the flip seat 1110 can remain relatively stationary, thereby reducing the possibility of the cover body 110 closing by mistake and injuring the operator. Because one end of the pulling assembly 140 is fixedly connected to the other end of the locking pin 1320, the other end of the pulling assembly 140 is a free end. The operator can pull the free end to pull the locking pin 1320 out of the positioning hole 1211 through the pulling assembly 140, so that the fixed seat 120 and the flip seat 1110 are switched to a relatively rotatable state, thereby pushing the cover body 110 to smoothly flip and cover the opening 201 of the cylinder body 200.

[0049] 2) Compared to the prior art flip-top door structure for powder coating bonding mixers, the self-locking, anti-smashing flip-top 100 allows the operator to pull the free end to overcome the elastic force and continuously remove the locking pin 1320 from the positioning hole 1211 when normal closure is required. This quickly releases the locking pin 1320 from the flip seat 1110 and the fixed seat 120. The fixed seat 120 and the flip seat 1110 can now rotate relative to each other, allowing the operator to smoothly push the cover 110 to flip over and cover the opening 201 of the cylinder 200. The pulling assembly 140 allows for more rapid control of the insertion and removal of the locking pin 1320, effectively reducing the likelihood of the locking pin 1320 obstructing the normal closure of the flip-top door and making it more convenient for the operator.

[0050] The above-described embodiments merely represent several implementation methods of the present disclosure. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person of ordinary skill in the art could make various modifications and improvements without departing from the scope of the present disclosure, all of which fall within the scope of protection of the present disclosure. Therefore, the scope of protection of the present patent shall be determined by the appended claims.

Claims

1. A self-locking anti-smashing flip cover (100), comprising a cover body (110), a fixing seat (120) and a flip seat (1110), wherein the fixing seat (120) is mounted on a cylinder body (200) of a mixing cylinder (10), and the cover body (110) is arranged to cover an opening (201) of the cylinder body (200); one end of the flip seat (1110) is rotatably connected to the fixing seat (120), and the other end of the flip seat (1110) is fixedly connected to one end of the cover body (110); and a plurality of positioning holes (1211) are provided on the fixing seat (120); It is characterized by: The self-locking anti-smashing flip cover (100) further includes a locking assembly (130) and a pulling assembly (140); The locking assembly (130) includes a guide cylinder (1310), a locking pin (1320) and a push spring (1330), one end of the guide cylinder (1310) is fixed on the flip seat (1110); one end of the locking pin (1320) passes through the guide cylinder (1310) and is inserted into one of the positioning holes (1211), and the other end of the locking pin (1320) extends outside the other end of the guide cylinder (1310); the locking pin (1320) ) is provided with a thrust plate (1321), the thrust plate (1321) is located in the guide tube (1310), one end of the push spring (1330) is in contact with the thrust plate (1321), and the other end of the push spring (1330) is in contact with the inner wall of the other end of the guide tube (1310); one end of the pulling assembly (140) is fixedly connected to the other end of the locking pin (1320), and the other end of the pulling assembly (140) is a free end.

2. The self-locking anti-smashing flip cover (100) according to claim 1, characterized in that: The number of the flip seats (1110), the number of the fixed seats (120) and the number of the locking assemblies (130) are all two, the two fixed seats (120) are arranged opposite to each other, the two flip seats (1110) are located on the inner side of the two fixed seats (120), one end of each guide cylinder (1310) is fixed to the corresponding flip seat (1110), the other ends of the two guide cylinders (1310) are arranged facing each other, and one end of the pulling assembly (140) is fixedly connected to the other ends of the two locking pins (1320).

3. The self-locking anti-smashing flip cover (100) according to claim 2, characterized in that: The pulling assembly (140) includes a traction mechanism (1410) and a synchronous stretching mechanism (1420). The synchronous stretching mechanism (1420) includes two connecting rods (1421). One end of each connecting rod (1421) is fixedly connected to the other end of the corresponding locking pin (1320). The middle of the two connecting rods (1421) cross and are rotatably connected. One end of the traction mechanism (1410) is fixedly connected to the other ends of the two connecting rods (1421).

4. The self-locking anti-smashing flip cover (100) according to claim 3, characterized in that: The connecting rod (1421) includes a stretching portion (142a) and a traction portion (142b), one end of the stretching portion (142a) is fixedly connected to the other end of the locking pin (1320), the other end of the stretching portion (142a) is fixedly connected to one end of the traction portion (142b), the middle parts of the two traction portions (142b) are crossed and rotatably connected, and one end of the traction mechanism (1410) is fixedly connected to the other ends of the two traction portions (142b).

5. The self-locking anti-smashing flip cover (100) according to claim 4, characterized in that: The included angle between the stretching portion (142a) and the pulling portion (142b) is greater than 90 degrees.

6. The self-locking anti-smashing flip cover (100) according to claim 3, characterized in that: The traction mechanism (1410) includes a pull rod (1411) and a connecting member (1412); one end of the connecting member (1412) is fixedly connected to one end of the pull rod (1411), and the other end of the connecting member (1412) is fixedly connected to the other ends of the two connecting rods (1421).

7. The self-locking anti-smashing flip cover (100) according to claim 6, characterized in that: The connecting member (1412) includes a connecting frame (141a), a pulley (141b) and a traction rope (141c); one side of the connecting frame (141a) is fixedly connected to one end of the pull rod (1411), the pulley (141b) is installed in the connecting frame (141a), the traction rope (141c) is sleeved on the pulley (141b), and the two ends of the traction rope (141c) are respectively fixedly connected to the other ends of the two connecting rods (1421).

8. The self-locking anti-smashing flip cover (100) according to claim 6, characterized in that: The traction mechanism (1410) further includes a pull ring (1413); the pull ring (1413) is fixed to the other end of the pull rod (1411).

9. The self-locking anti-smashing flip cover (100) according to claim 1, characterized in that: The self-locking anti-smashing flip cover (100) further comprises a lifting handle (1120); the lifting handle (1120) is fixed to an end portion of the cover body (110) away from one end of the flip seat (1110).

10. A mixing tank (10), characterized in that: The invention comprises a cylinder body (200) and a self-locking, anti-smashing flip cover (100) according to any one of claims 1 to 9.

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