Anti-explosion push-pull device

Abstract

The invention discloses an anti-explosion push-pull device which comprises a support, a clamping mechanism, a positioning mechanism and a push-pull driving piece, the positioning mechanism and the push-pull driving piece are arranged on the support, and the positioning mechanism is located below the clamping mechanism; the clamping mechanism comprises a first mounting base connected with the push-pull driving piece, clamping arms oppositely arranged on the two sides of the first mounting base, a clamping driving piece used for driving the clamping arms on the two sides to be close to each other or away from each other, and a detection assembly used for detecting whether the clamping arms are clamped or opened or not; the detection assembly comprises a first detection plate arranged on the clamping arm, a second detection plate arranged on the first installation base and an air nozzle arranged on the second detection plate, and the air nozzle faces the first detection plate. The detection assembly judges whether clamping or releasing is conducted or not by detecting the gas pressure, and is more suitable for energetic materials; and explosion prevention is facilitated. The anti-explosion push-pull device is simple in overall structure, high in automation degree, good in reliability and beneficial to reducing labor intensity and improving efficiency.

Description

Technical Field

[0001] The invention relates to production equipment used in pharmaceutical, chemical and other industries, and in particular to an explosion-proof push-pull device. Background Art

[0002] In the pharmaceutical and chemical industries, it is often necessary to automatically push materials to the next process, and motors are generally used as drivers. However, when the transported materials are energetic solid materials (flammable and explosive), the production environment is generally required to reach F0 or F1 zone, and it is not possible or appropriate to use electrified methods (for example, electric sparks may cause explosions, especially for energetic solid materials, and dust can easily cause safety accidents). For this reason, manual transport is currently mostly used. On the one hand, manual transport is labor-intensive, and only a single material carrier can be transported at a time, which is inefficient, and dust endangers the health of workers. On the other hand, energetic solid materials are flammable and explosive, which poses a safety hazard. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an explosion-proof push-pull device which has a simple structure, a high degree of automation, is conducive to reducing labor intensity, improves efficiency, and has good safety.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] An explosion-proof push-pull device comprises a bracket, a clamping mechanism, a positioning mechanism and a push-pull driving member, wherein the positioning mechanism and the push-pull driving member are arranged on the bracket, the positioning mechanism is located below the clamping mechanism, the clamping mechanism comprises a first mounting seat connected to the push-pull driving member, clamping arms arranged on both sides of the first mounting seat, a clamping driving member for driving the clamping arms on both sides to move closer to or away from each other, and a detection component for detecting whether the clamping arms are clamped or opened, the detection component comprises a first detection plate arranged on the clamping arm, a second detection plate arranged on the first mounting seat and an air nozzle arranged on the second detection plate, and the air nozzle is arranged toward the first detection plate.

[0006] As a further improvement of the above technical solution: a corrugated sealing cover is connected between the bracket and the first mounting seat, and the connection between the push-pull driving member and the first mounting seat is located in the corrugated sealing cover.

[0007] As a further improvement of the above technical solution: a spring air pipe is also connected between the bracket and the first mounting seat, and the spring air pipe is located in the corrugated sealing cover.

[0008] As a further improvement of the above technical solution: first guide rods are provided on both sides of the first mounting seat, the first guide rods are arranged parallel to the push-pull driving member, a first guide sleeve is provided on the bracket, and the first guide rods are inserted into the spring air tube and the first guide sleeve.

[0009] As a further improvement of the above technical solution: rollers are further provided on both sides of the first mounting seat, guide rails are provided on both sides of the bracket, the rollers are arranged corresponding to the guide rails, and the positioning mechanism is located below the guide rails.

[0010] As a further improvement of the above technical solution: the guide rail is arranged in the water tank, and at least one end of the water tank is provided with a water stop member that can float up and down.

[0011] As a further improvement of the above technical solution: a clamping groove is provided on the clamping arm.

[0012] As a further improvement of the above technical solution: the clamping drive member is a double-rod cylinder, and the two piston rods of the double-rod cylinder are connected to the clamping arms on both sides in a one-to-one correspondence.

[0013] As a further improvement of the above technical solution: the positioning mechanism includes a second mounting seat, positioning columns arranged on both sides of the second mounting seat and a positioning drive member for driving the second mounting seat to reciprocate, and the positioning drive member is arranged on the bracket and parallel to the push-pull drive member.

[0014] As a further improvement of the above technical solution: a second guide rod is provided on the second mounting seat, the second guide rod is arranged in parallel on both sides of the positioning drive member, the bracket is provided with a second guide sleeve, and the second guide rod is inserted into the second guide sleeve.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] The explosion-proof push-pull device disclosed in the present invention, after the lifting mechanism lifts the material carrier into place, the positioning mechanism acts to correct and position the lifting mechanism, and then the push-pull driving member pushes the clamping mechanism out until the clamping arm is aligned with the columns on both sides of the material carrier, the push-pull driving member stops, and the clamping driving member drives the clamping arms on both sides to move closer to each other, clamping the columns on both sides of the material carrier, and the subsequent push-pull driving member can push (or pull out) the material carrier out of the lifting mechanism through the clamping mechanism. When it is necessary to loosen the material carrier, the clamping driving member drives the clamping arms on both sides to move away from each other, so that the clamping arms are separated from the columns, and the air nozzle sprays compressed gas toward the first detection plate, and the first detection plate moves with the clamping arm. The smaller the distance between the first detection plate and the second detection plate, the greater the pressure acting on the first detection plate, and vice versa. The greater the distance from the second detection plate, the smaller the pressure acting on the first detection plate, so that it can be judged whether the clamping arm is clamped or opened, further improving the reliability of the clamping mechanism. Compared with conventional electric sensors and electric detection components, the detection assembly in the present invention is more suitable for energetic materials and is conducive to preventing explosions. Compared with manual transportation, the explosion-proof push-pull device disclosed in the present invention has a simple overall structure, a high degree of automation, and good reliability, which is conducive to reducing labor intensity and improving efficiency.

[0017] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the exterior of the explosion-proof push-pull device of the present invention.

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure inside the explosion-proof push-pull device of the present invention.

[0020] Figure 3 It is a schematic diagram of the main structure of the explosion-proof push-pull device of the present invention.

[0021] Figure 4 It is a three-dimensional structural schematic diagram of the clamping mechanism in the present invention.

[0022] Figure 5 It is a three-dimensional structural schematic diagram of the positioning mechanism in the present invention.

[0023] Figure 6 It is a three-dimensional structural schematic diagram of the present invention in use state.

[0024] Figure 7 yes Figure 6 Enlarged view of point A in the middle.

[0025] Figure 8 yes Figure 1 Enlarged view of the middle guide rail and roller area.

[0026] The symbols in the figure represent:

[0027] 1. Bracket; 11. First guide sleeve; 12. Guide rail; 13. Second guide sleeve; 14. Water tank; 15. Water stop; 2. Material carrier; 21. Column; 3. Clamping mechanism; 31. First guide rod; 32. Roller; 33. First mounting seat; 34. Clamping arm; 341. Clamping groove; 35. Clamping drive member; 36. First detection plate; 37. Second detection plate; 38. Air nozzle; 4. Positioning mechanism; 41. Second mounting seat; 42. Positioning column; 43. Positioning drive member; 44. Second guide rod; 5. Push-pull drive member; 61. Corrugated sealing cover; 62. Spring air pipe; 7. Lifting mechanism. DETAILED DESCRIPTION

[0028] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "assemble", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] Figures 1 to 8An embodiment of the explosion-proof push-pull device of the present invention is shown. The explosion-proof push-pull device of this embodiment includes a bracket 1, a clamping mechanism 3, a positioning mechanism 4 and a push-pull driving member 5. The positioning mechanism 4 and the push-pull driving member 5 are arranged on the bracket 1, and the positioning mechanism 4 is located below the clamping mechanism 3. The clamping mechanism 3 includes a first mounting seat 33 connected to the push-pull driving member 5, clamping arms 34 arranged on both sides of the first mounting seat 33, a clamping driving member 35 for driving the clamping arms 34 on both sides to move closer or farther away from each other, and a detection assembly for detecting whether the clamping arms 34 are clamped or opened. The detection assembly includes a first detection plate 36 arranged on the clamping arm 34, a second detection plate 37 arranged on the first mounting seat 33, and an air nozzle 38 arranged on the second detection plate 37, and the air nozzle 38 is arranged toward the first detection plate 36. Preferably, the push-pull driving member 5 adopts a hydraulic cylinder, which is more suitable for energetic materials than motors to avoid explosion.

[0033] When the explosion-proof push-pull device of this embodiment is working, after the lifting mechanism 7 lifts the material carrier 2 into place, the positioning mechanism 4 operates to correct and position the lifting mechanism 7, and then the push-pull driving member 5 pushes the clamping mechanism 3 out until the clamping arm 34 is aligned with the columns 21 on both sides of the material carrier 2, and the push-pull driving member 5 stops. Figure 4 , the clamping drive 35 drives the clamping arms 34 on both sides to move closer to each other, so that the clamping arms 34 clamp the columns 21 on both sides of the material carrier 2 one by one, and the subsequent push-pull drive 5 can push (or pull out) the material carrier 2 from the lifting mechanism 7 through the clamping mechanism 3. When it is necessary to release the material carrier 2, the clamping drive 35 drives the clamping arms 34 on both sides to move away from each other, so that the clamping arms 34 are separated from the columns 21. The air nozzle 38 sprays compressed gas toward the first detection plate 36, and the first detection plate 36 moves with the clamping arm 34. The smaller the distance between the first detection plate 36 and the second detection plate 37, the greater the pressure acting on the first detection plate 36. Conversely, the greater the distance from the second detection plate 37, the smaller the pressure acting on the first detection plate 36. Therefore, it can be judged whether the clamping arm 34 is clamped or opened, which further improves the reliability of the clamping mechanism 3. Compared with conventional electric sensors and electric detection components, the detection component in this embodiment is more suitable for energetic materials, which is conducive to preventing explosion and has good safety. Compared with manual transportation, the explosion-proof push-pull device of this embodiment has a simple overall structure, a high degree of automation, and good reliability, which is conducive to reducing labor intensity and improving efficiency.

[0034] See Figure 1In this embodiment, a corrugated sealing cover 61 is connected between the bracket 1 and the first mounting seat 33, and the connection between the push-pull driving member 5 and the first mounting seat 33 is located in the corrugated sealing cover 61. The corrugated sealing cover 61 is used to achieve sealing isolation at the connection between the push-pull driving member 5 and the first mounting seat 33, which is beneficial to prevent energetic materials from entering and avoiding the energetic materials from being squeezed and exploding when the push-pull driving member 5 pushes and pulls the clamping mechanism 3, which has good safety, and the corrugated sealing cover 61 can be extended and retracted with the movement of the clamping mechanism 3, so it will not hinder the movement of the clamping mechanism 3.

[0035] See Figure 8 In this embodiment, a spring air pipe 62 is further connected between the bracket 1 and the first mounting seat 33, and the spring air pipe 62 is located in the corrugated sealing cover 61. The spring air pipe 62 can deliver compressed gas to the clamping drive 35 and the air nozzle 38, so that the clamping drive 35 and the air nozzle 38 can work, and at the same time prevent energetic materials from entering the interior, thereby improving safety. The spring air pipe 62 can be extended and retracted with the movement of the clamping mechanism 3, so it will not hinder the movement of the clamping mechanism 3.

[0036] Furthermore, in this embodiment, first guide rods 31 are provided on both sides of the first mounting seat 33, and the first guide rods 31 are arranged in parallel with the push-pull driving member 5. A first guide sleeve 11 is provided on the bracket 1, and the first guide rod 31 is inserted into the spring air tube 62 and the first guide sleeve 11. The first guide rod 31 cooperates with the first guide sleeve 11 to provide a guiding effect for the reciprocating movement of the clamping mechanism 3, making the movement process more stable and smooth, and avoiding deviation; the first guide rod 31 is inserted into the spring air tube 62, and can provide support for the flexible spring air tube 62 and the corrugated sealing cover 61 outside the spring air tube 62, reducing the sagging amount, which is particularly suitable for the working condition where the push-pull driving member 5 has a long stroke (in this embodiment, the stroke of the push-pull driving member 5 is as long as about 3.2m, and the length of the spring air tube 62 and the corrugated sealing cover 61 needs to be adapted to the stroke of the push-pull driving member 5).

[0037] See Figure 1 In this embodiment, rollers 33 are provided on both sides of the first mounting seat 33, guide rails 12 are provided on both sides of the bracket 1, and the rollers 32 are arranged corresponding to the guide rails 12. The guide rails 12 cooperate with the rollers 32 to provide support and guidance for the clamping mechanism 3 when the clamping mechanism 3 is pushed out, thereby realizing the two-level guidance of the clamping mechanism 3 (the first guide rod 31 cooperates with the first guide sleeve 11 to provide guidance), which is beneficial to reduce the stress deformation of the cantilever structure components (such as the first guide rod 31, the piston rod of the hydraulic cylinder, etc.), and further improve the reliability. It should be noted that after the rollers 32 of the clamping mechanism 3 are separated from the guide rails 12, they can continue to roll along the carrier guide rails of the material carrier 2 (only the rollers at the bottom of the material carrier 2 are shown in the figure, and the corresponding carrier guide rails are not shown), so as to always provide support for the clamping mechanism 3, and the structure is reasonable and reliable.

[0038] See Figure 8 The guide rail 12 is arranged in the water tank 14, and a water stopper 15 that can float up and down is arranged at least at one end of the water tank 14. The guide rail 12 is arranged in the water tank 14, and the water in the water tank 14 can soak and clean the guide rail 12 and the roller 32 of the clamping mechanism 3, reduce static electricity and extrusion caused by friction, and thus can greatly reduce the risk of explosion when the clamping mechanism 3 moves along the guide rail 12, improve safety, facilitate automated transportation, and improve transportation efficiency; at least one end of the water tank 14 is provided with a water stopper 15 that can float up and down, and when the clamping mechanism 3 needs to move to the guide rail 12 or leave the guide rail 12, it can pass smoothly by sinking the water stopper 15, and reduce the friction and extrusion between the clamping mechanism 3 and the water stopper 15, and reduce the risk of explosion. After the clamping mechanism 3 passes, the water stop 15 floats up (for example, a spring can be arranged under the water stop 15 so that the water stop 15 can float up automatically), reducing the overflow of water in the water tank 14 and keeping the guide rail 12 submerged in water. The structure is simple and the reliability is good.

[0039] As a preferred embodiment, a clamping groove 341 is provided on the clamping arm 34 to facilitate the clamping arm 34 to clamp and fix the column 21 on the material carrier 2 .

[0040] As a preferred embodiment, the clamping drive member 35 is a double-rod cylinder, and the two piston rods of the double-rod cylinder are connected to the clamping arms 34 on both sides in a one-to-one correspondence. The use of the double-rod cylinder makes the clamping mechanism 3 more compact and occupies less space. Of course, in other embodiments, the clamping arms 34 on both sides can also be respectively configured with conventional cylinders. Compared with motors, cylinders are more suitable for energetic materials to avoid explosions.

[0041] See Figure 5 and Figure 7 In this embodiment, the positioning mechanism 4 includes a second mounting seat 41, positioning columns 42 arranged on both sides of the second mounting seat 41, and a positioning drive 43 for driving the second mounting seat 41 to move back and forth. The positioning drive 43 is arranged on the bracket 1 and is arranged in parallel with the push-pull drive 5. After the lifting mechanism 7 lifts the material carrier 2 into place, the positioning drive 43 pushes out the second mounting seat 41 and the positioning columns 42 on both sides. The positioning columns 42 on both sides correct and position the lifting mechanism 7, and at the same time prevent the lifting mechanism 7 from moving when the clamping mechanism 3 drives the material carrier 2 to move, and the reliability is good. Preferably, the positioning drive 43 also uses a cylinder. Compared with a motor, a cylinder is more suitable for energetic materials to avoid explosions; referring to the first mounting seat 33, a corrugated sealing cover 61 is also connected between the second mounting seat 41 and the bracket 1, and the portion where the positioning drive 43 is connected to the second mounting seat 41 is arranged in the corrugated sealing cover 61 to prevent energetic materials from entering.

[0042] Further, in this embodiment, the second mounting seat 41 is provided with a second guide rod 44, which is arranged in parallel on both sides of the positioning drive member 43, and the bracket 1 is provided with a second guide sleeve 13, and the second guide rod 44 is inserted into the second guide sleeve 13. The second guide rod 44 cooperates with the second guide sleeve 13 to provide a guide for the reciprocating movement of the second mounting seat 41, so that the movement process is more stable and smooth, and deviation is avoided.

[0043] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any technician familiar with the art can make many possible changes and modifications to the technical solution of the present invention by using the technical content disclosed above without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention should fall within the scope of protection of the technical solution of the present invention.

Claims

1. An explosion-proof push-pull device, characterized in that: The invention comprises a bracket (1), a clamping mechanism (3), a positioning mechanism (4) and a push-pull driving member (5), wherein the positioning mechanism (4) and the push-pull driving member (5) are arranged on the bracket (1), the positioning mechanism (4) is located below the clamping mechanism (3), the clamping mechanism (3) comprises a first mounting seat (33) connected to the push-pull driving member (5), clamping arms (34) arranged on both sides of the first mounting seat (33), a clamping driving member (35) for driving the clamping arms (34) on both sides to move closer to or away from each other, and a detection component for detecting whether the clamping arms (34) are clamped or opened, wherein the detection component comprises a first detection plate (36) arranged on the clamping arm (34), a second detection plate (37) arranged on the first mounting seat (33), and an air nozzle (38) arranged on the second detection plate (37), wherein the air nozzle (38) is arranged toward the first detection plate (36).

2. The explosion-proof push-pull device according to claim 1, characterized in that: A corrugated sealing cover (61) is connected between the bracket (1) and the first mounting seat (33), and the connection between the push-pull driving member (5) and the first mounting seat (33) is located inside the corrugated sealing cover (61).

3. The explosion-proof push-pull device according to claim 2, characterized in that: A spring air pipe (62) is also connected between the bracket (1) and the first mounting seat (33), and the spring air pipe (62) is located inside the corrugated sealing cover (61).

4. The explosion-proof push-pull device according to claim 3, characterized in that: First guide rods (31) are provided on both sides of the first mounting seat (33), the first guide rods (31) are arranged in parallel with the push-pull driving member (5), the bracket (1) is provided with a first guide sleeve (11), and the first guide rod (31) is inserted into the spring air tube (62) and the first guide sleeve (11).

5. The explosion-proof push-pull device according to any one of claims 1 to 4, characterized in that: Rollers (32) are also provided on both sides of the first mounting seat (33), guide rails (12) are provided on both sides of the bracket (1), the rollers (32) are arranged corresponding to the guide rails (12), and the positioning mechanism (4) is located below the guide rails (12).

6. The explosion-proof push-pull device according to claim 5, characterized in that: The guide rail (12) is arranged in a water tank (14), and at least one end of the water tank (14) is provided with a water stop member (15) that can float up and down.

7. The explosion-proof push-pull device according to any one of claims 1 to 4, characterized in that: The clamping arm (34) is provided with a clamping groove (341).

8. The explosion-proof push-pull device according to any one of claims 1 to 4, characterized in that: The clamping drive member (35) is a double-rod cylinder, and the two piston rods of the double-rod cylinder are connected to the clamping arms (34) on both sides in a one-to-one correspondence.

9. The explosion-proof push-pull device according to any one of claims 1 to 4, characterized in that: The positioning mechanism (4) comprises a second mounting seat (41), positioning columns (42) arranged on both sides of the second mounting seat (41), and a positioning drive member (43) for driving the second mounting seat (41) to move back and forth, and the positioning drive member (43) is arranged on the bracket (1) and is arranged in parallel with the push-pull drive member (5).

10. The explosion-proof push-pull device according to claim 9, characterized in that: The second mounting seat (41) is provided with a second guide rod (44), the second guide rod (44) is arranged in parallel on both sides of the positioning drive member (43), the bracket (1) is provided with a second guide sleeve (13), and the second guide rod (44) is inserted into the second guide sleeve (13).

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