A safety interlock device for a vulcanizing tank

Abstract

This utility model relates to the field of vulcanizing tanks, specifically a safety interlock device for vulcanizing tanks. It includes a tank body with a hinged sealing shell, a tank cover rotatably connected to the sealing shell, and a connecting block fixedly connected to the tank cover. Through a limiting assembly consisting of a pressure pipe, a piston block, and a positioning rod, it directly controls the state of the positioning rod using the pressure inside the tank. When there is pressure inside the tank, the pressure pushes the piston block, causing the positioning rod to insert into the second insertion hole of the linkage rod, forcibly locking the positioning assembly and ensuring that the insertion rod is always inserted into the first insertion hole of the connecting block, strictly limiting the opening of the tank cover. Only when the pressure inside the tank is completely released, and the positioning rod loses its pressure drive, can the lock be released by pulling out the handle. This achieves the core safety logic of "the door cannot be opened until the pressure drops to zero," avoiding the safety hazard of traditional top-rod structures that may unlock before the pressure is completely released, fundamentally eliminating accidents such as explosions and personal injury caused by misoperation.

Description

Technical Field

[0001] This utility model relates to the field of vulcanizing tank technology, and specifically to a safety interlock device for a vulcanizing tank. Background Technology

[0002] Vulcanizing tanks are pressure-bearing equipment used in industries such as rubber and plastics for vulcanization. Their safe operation is of paramount importance. Safety interlock devices are one of the core components that ensure the safe operation of vulcanizing tanks. Through mechanical or electrical control, they enforce the logic that "pressure cannot be increased if the tank door is not closed tightly and the door cannot be opened if the pressure has not dropped to zero," preventing accidents such as explosions and personal injuries caused by misoperation.

[0003] Chinese patent CN218876013U discloses a safety interlock device for a vulcanizing tank. By setting a top column, it ensures that the pressure inside the vulcanizing tank is completely released when the operator opens the sealing cover, thereby reducing the occurrence of cracks at the root of the quick-opening teeth and thus improving the service life of the equipment. At the same time, it reduces the safety accidents that may occur when the sealing cover is opened without complete pressure release, thereby improving the safety of the operators.

[0004] In the above solution, the clamp is supported by a push rod. Although the push rod will release the support of the clamp when the pressure decreases, the clamp itself does not have a limiting structure. The push rod will move when the pressure decreases, and the limiting will not be released until all the pressure is released, which poses a certain safety hazard.

[0005] Therefore, this utility model provides a safety interlock device for a vulcanizing tank to solve the above problems. Utility Model Content

[0006] In view of the above situation and to overcome the defects of the prior art, this utility model provides a safety interlock device for a vulcanizing tank, which solves the problem that the fixing clamp itself does not have a limiting structure, and the push rod will move when the pressure decreases, instead of releasing the limit only after the pressure is completely released, thus posing a certain safety hazard.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A safety interlock device for a vulcanizing tank includes a tank body, a sealing shell hinged to the tank body, a tank cover rotatably connected to the sealing shell, a connecting block fixedly connected to the tank cover, a first insertion hole on the connecting block, a guide seat fixedly connected to the tank body, a positioning component for inserting into the first insertion hole and limiting the position of the connecting block slidably connected to the guide seat, a limiting component for limiting the position of the positioning component on the tank body, and a reinforcing component for reinforcing the sealing shell and the tank body in a sealed state on the sealing shell.

[0009] Preferably, the positioning component includes a linkage rod slidably connected to the guide seat, with a plug rod and a limiting block fixedly connected to each end of the linkage rod, and the plug rod matching the first insertion hole.

[0010] Preferably, the limiting component includes a pressure pipe fixedly connected to the tank body, a piston block slidably connected inside the pressure pipe, a positioning rod fixedly connected to the piston block, and one end of the positioning rod passing through the pressure pipe and extending to the outside of the pressure pipe. A second insertion hole matching the positioning rod is provided on the linkage rod.

[0011] Preferably, a handle is fixedly connected to the positioning rod, and the handle is located on the side of the linkage rod closer to the pressure tube.

[0012] Preferably, the reinforcement component includes a hinge seat fixedly connected to the sealing shell and a limiting seat fixedly connected to the tank body. A hinge rod is hinged to the hinge seat, a slot is provided on the limiting seat, a screw is fixedly connected to the hinge rod, and one end of the screw is located in the slot. A fixing nut is threaded onto the screw and abuts against the limiting seat.

[0013] Preferably, a bracket is fixedly connected to the tank body, a rotating frame is hinged to the bracket, and one end of the rotating frame is fixedly connected to the sealing shell.

[0014] Preferably, the bottom surface of the tank is fixedly connected with support legs arranged at equal intervals.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. The limiting assembly, consisting of a pressure pipe, piston block, and positioning rod, directly controls the position of the positioning rod using the pressure inside the tank. When there is pressure inside the tank, the pressure pushes the piston block to insert the positioning rod into the second insertion hole of the linkage rod, forcibly locking the positioning assembly and ensuring that the insertion rod is always inserted into the first insertion hole of the connecting block. This strictly restricts the opening of the tank lid. Only when the pressure inside the tank is completely released and the positioning rod loses its pressure drive can the lock be released by pulling out the handle. This achieves the core safety logic of "the door cannot be opened until the pressure drops to zero," avoiding the safety hazard of unlocking when the pressure is not completely released in the traditional top rod structure. This fundamentally eliminates accidents such as explosions and personal injuries caused by misoperation.

[0017] 2. By cooperating with the first insertion hole in the positioning component, the rotation of the tank cover is rigidly limited. The threaded connection between the hinge rod, screw and fixing nut in the reinforcement component further strengthens the sealing state between the sealing shell and the tank body. This not only prevents the tank cover from being opened accidentally without depressurization, but also enhances the overall sealing performance of the vulcanizing tank during operation, reduces pressure leakage or tank door loosening caused by poor sealing, and improves the stability of equipment operation. Attached Figure Description

[0018] Figure 1 The three-dimensional representation of this utility model Figure 1 .

[0019] Figure 2 The three-dimensional representation of this utility model Figure 2 .

[0020] Figure 3 This utility model Figure 2 An enlarged schematic diagram of the structure at point A in the middle.

[0021] Figure 4 This is a schematic diagram of the limiting component in this utility model.

[0022] In the diagram: 1. Tank body; 2. Support leg; 3. Bracket; 4. Rotating frame; 5. Tank lid; 6. Sealing shell; 7. Connecting block; 8. Hinge seat; 9. Hinge rod; 10. Screw; 11. Limit seat; 12. Slot; 13. Fixing nut; 14. Insert rod; 15. Guide seat; 16. Linkage rod; 17. First insertion hole; 18. Limit block; 19. Pressure pipe; 20. Piston block; 21. Positioning rod; 22. Handle; 23. Second insertion hole. Detailed Implementation

[0023] The following will refer to the attached reference. Figures 1 to 4 The various embodiments of this utility model will be described in detail below. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of this utility model and are not intended to limit the scope of protection of this utility model.

[0024] A safety interlock device for a vulcanizing tank includes a tank body 1, a sealing shell 6 hinged to the tank body 1, a bracket 3 fixedly connected to the tank body 1, a rotating frame 4 hinged to the bracket 3, and one end of the rotating frame 4 fixedly connected to the sealing shell 6. When the sealing shell 6 rotates, it can drive the rotating frame 4 to rotate on the bracket 3.

[0025] Specifically, the bottom surface of the tank 1 is fixedly connected with support legs 2 arranged at equal intervals, and the support legs 2 are used to support the tank 1 so that there is a sufficient distance between the tank 1 and the ground.

[0026] A can lid 5 is rotatably connected to the sealing shell 6. A toothed ring engagement limiting structure can be designed inside the can lid 5 and at the opening of the can body 1. The closing teeth engage with the limiting toothed ring. When the teeth are fully engaged or disengaged, the can door reaches the set closed or open position to achieve the limiting.

[0027] In this embodiment, a connecting block 7 is fixedly connected to the can lid 5, and a first insertion hole 17 is provided on the connecting block 7. A guide seat 15 is fixedly connected to the can body 1, and a positioning component for inserting into the first insertion hole 17 and limiting the connecting block 7 is slidably connected to the guide seat 15.

[0028] The positioning component includes a linkage rod 16 slidably connected to the guide seat 15. The two ends of the linkage rod 16 are respectively fixedly connected to the insertion rod 14 and the limiting block 18, and the insertion rod 14 matches the first insertion hole 17.

[0029] The positioning component uses the insertion rod 14 and the first insertion hole 17 to limit the connection block 7, thereby limiting the rotation of the can lid 5 and preventing the can lid 5 from opening when it is not depressurized.

[0030] The tank body 1 is also provided with a limiting component for limiting the positioning component. The limiting component includes a pressure pipe 19 fixedly connected to the tank body 1, a piston block 20 slidably connected inside the pressure pipe 19, a positioning rod 21 fixedly connected to the piston block 20, and one end of the positioning rod 21 passing through the pressure pipe 19 and extending to the outside of the pressure pipe 19. A second insertion hole 23 matching the positioning rod 21 is opened on the linkage rod 16.

[0031] When there is a high pressure inside the tank 1, the piston block 20 will move inside the pressure pipe 19 and drive the positioning rod 21 to extend out of the pressure pipe 19. At this time, the pressure pipe 19 has a high pressure, which is used to limit the positioning rod 21 and insert the positioning rod 21 into the linkage rod 16 to complete the limitation of the linkage rod 16, so that the rotation limit of the tank cover 5 will not be released when the pressure inside the tank 1 is not released.

[0032] The positioning rod 21 is fixedly connected to a handle 22, which is located on the side of the linkage rod 16 near the pressure tube 19. After depressurization, the positioning rod 21 is moved by the handle 22, which pulls the positioning rod 21 out of the linkage rod 16 to release the restriction on the linkage rod 16, and pulls the insertion rod 14 on the linkage rod 16 out of the first insertion hole 17 to release the restriction on the can cover 5.

[0033] In this embodiment, the sealing shell 6 is provided with a reinforcement component for reinforcing the sealing shell 6 and the tank body 1 in a sealed state. The reinforcement component includes a hinge seat 8 fixedly connected to the sealing shell 6 and a limiting seat 11 fixedly connected to the tank body 1. A hinge rod 9 is hinged to the hinge seat 8. A slot 12 is provided on the limiting seat 11. A screw 10 is fixedly connected to the hinge rod 9, and one end of the screw 10 is in the slot 12. A fixing nut 13 is threadedly connected to the screw 10, and the fixing nut 13 abuts against the limiting seat 11.

[0034] After the sealing shell 6 is attached to the tank body 1, the hinge rod 9 can be rotated in the hinge seat 8, and the hinge rod 9 drives the screw 10 to be inserted into the slot 12. Then, the tank body 1 and the sealing shell 6 are limited by installing the fixing nut 13 on the screw 10.

[0035] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A safety interlock device for a vulcanizing tank, comprising a tank body (1), characterized in that, A sealing shell (6) is hinged to the tank body (1), a tank cover (5) is rotatably connected to the sealing shell (6), a connecting block (7) is fixedly connected to the tank cover (5), a first insertion hole (17) is provided on the connecting block (7), a guide seat (15) is fixedly connected to the tank body (1), a positioning component for inserting into the first insertion hole (17) and limiting the connecting block (7) is slidably connected to the guide seat (15), a limiting component for limiting the positioning component is also provided on the tank body (1), and a reinforcing component for reinforcing the sealing shell (6) and the tank body (1) in a sealed state is provided on the sealing shell (6).

2. The safety interlock device for a vulcanizing tank according to claim 1, characterized in that, The positioning component includes a linkage rod (16) slidably connected to the guide seat (15). The two ends of the linkage rod (16) are respectively fixedly connected to a plug rod (14) and a limiting block (18), and the plug rod (14) matches the first insertion hole (17).

3. A safety interlock device for a vulcanizing tank according to claim 2, characterized in that, The limiting component includes a pressure pipe (19) fixedly connected to the tank (1), a piston block (20) slidably connected inside the pressure pipe (19), a positioning rod (21) fixedly connected to the piston block (20), and one end of the positioning rod (21) passing through the pressure pipe (19) and extending to the outside of the pressure pipe (19). A second insertion hole (23) matching the positioning rod (21) is provided on the linkage rod (16).

4. A safety interlock device for a vulcanizing tank according to claim 3, characterized in that, A handle (22) is fixedly connected to the positioning rod (21), and the handle (22) is located on the side of the linkage rod (16) near the pressure tube (19).

5. A safety interlock device for a vulcanizing tank according to claim 1, characterized in that, The reinforcement assembly includes a hinge seat (8) fixedly connected to the sealing shell (6) and a limiting seat (11) fixedly connected to the tank body (1). A hinge rod (9) is hinged on the hinge seat (8), and a slot (12) is provided on the limiting seat (11). A screw (10) is fixedly connected to the hinge rod (9), and one end of the screw (10) is located in the slot (12). A fixing nut (13) is threaded onto the screw (10), and the fixing nut (13) abuts against the limiting seat (11).

6. A safety interlock device for a vulcanizing tank according to claim 1, characterized in that, A bracket (3) is fixedly connected to the tank (1), and a rotating frame (4) is hinged to the bracket (3), with one end of the rotating frame (4) fixedly connected to the sealing shell (6).

7. A safety interlock device for a vulcanizing tank according to claim 1, characterized in that, The bottom surface of the tank (1) is fixedly connected with support legs (2) arranged at equal intervals.

Images