Macromolecule burr waste crushing and recycling device

Abstract

The utility model belongs to the technical field of macromolecule smashing and recycling, and particularly relates to a macromolecule burr waste smashing and recycling device which comprises a box body and further comprises a first baffle and a second baffle, the first baffle and the second baffle are both rotationally installed in the box body and located above a crushing roller in the box body, a power cavity is formed in the box body, a worm is rotationally installed in the power cavity, and the worm is driven by the first baffle and the second baffle to rotate. Worm gears are symmetrically and rotationally installed in the power cavity and located at the bottom of the worm, the worm gears are meshed with the worm, and one ends of the two worm gears penetrate through one side of the power cavity and are coaxially connected with the first baffle and the second baffle correspondingly. When the whole device is used, it is ensured that macromolecule burr waste materials can be smashed more thoroughly, large macromolecule burr waste materials are avoided, a worker only needs to pull a plug pin with a hand to complete disassembling or assembling when assembling and disassembling the collecting box, and therefore the labor intensity of the worker is reduced, and the labor intensity of the worker is reduced. And no special tool is needed, so that the operation is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of polymer crushing and recycling, and particularly relates to a polymer burr waste crushing and recycling device. Background Art

[0002] Polymer materials, also known as polymer materials, are materials composed of polymer compounds as the matrix and other additives.

[0003] For example, the Chinese patent with the publication number CN219190905U discloses a waste recycling device, including a box, the upper end of the inner wall of the box is rotatably connected to a first rotating shaft, the outer wall of the first rotating shaft is installed with a crushing roller, and the inner wall of the box is rotatably connected to a second rotating shaft. The utility model adopts the above structure, when it is necessary to process the waste generated by the plastic casing during production, the waste is put into the box, and the first rotating shaft drives the crushing roller to rotate through the transmission mechanism, and the second rotating shaft of the transmission mechanism drives the crushing roller to rotate, and at the same time, the position of the first rotating shaft and the second rotating shaft is stabilized by the positioning component, and the casing plays the role of crushing the casing waste through the crushing roller, and after passing through the crushing roller, the crushed waste is crushed by the crushing roller, and falls into the collection box after crushing, thereby completing the waste recycling work, and by crushing the waste, the waste recycling effect can be effectively improved, and at the same time, large pieces of waste are prevented from accumulating near the workstation to affect the staff.

[0004] The above patent has the following problems:

[0005] This patent has some disadvantages when used, such as: the device is not convenient for controlling the feeding speed, when crushing and recycling polymer burrs, if too much polymer burrs are added at one time, it may not be crushed thoroughly enough, and there will still be some large polymer burrs. If the material is added slowly in batches, it will waste time. At the same time, the device uses screws and nuts when disassembling or installing the collection box, which requires the staff to use specific tools for disassembly and installation, which is inconvenient. In view of this, we propose a polymer burrs waste crushing and recycling device. Utility Model Content

[0006] The utility model aims to provide a polymer burr waste crushing and recovery device to solve the problems raised in the above background technology.

[0007] In view of this, the utility model provides a polymer burr waste crushing and recovery device, including a box body, and also includes:

[0008] Baffle plate 1 and baffle plate 2, both of which are rotatably mounted in the box and located above the crushing roller in the box, a power chamber is provided in the box, a worm is rotatably mounted in the power chamber, a worm wheel is symmetrically rotatably mounted in the power chamber and located at the bottom of the worm, the worm wheel meshes with the worm, and one end of the two worm wheels passes through one side of the power chamber and are coaxially connected to baffle plate 1 and baffle plate 2 respectively;

[0009] A collection box is slidably installed in the box body, and the collection box is located below the crushing roller in the box body. A slide groove is provided on the top of the collection box, and a limiting groove is provided on the box body and at the top of the slide groove. A cylinder is fixedly installed in the slide groove, and a latch is slidably installed on the cylinder. The upper end of the latch extends into the limiting groove, and the other end of the latch passes through one side of the slide groove and extends to the outside. A spring is sleeved on the cylinder and at one side of the latch.

[0010] In the present technical solution, when in use, first put an appropriate amount of polymer burrs into the box and place them on the top of baffle plate 1 and baffle plate 2, then the whole device can be powered on and put into operation, then the staff can use their hands to turn the rocker in the forward direction to drive the rocker to rotate the worm, under the action of meshing, and because the two sections of spiral patterns on the worm rotate in opposite directions, the worm will drive the two worm wheels to rotate in opposite directions when rotating, and then the two worm wheels will respectively drive one side of baffle plate 1 and one side of baffle plate 2 to rotate downward, so that one side of baffle plate 1 is rotated downward, and the other side of baffle plate 2 is rotated downward. The distance between the side of the baffle plate 1 and the side of the baffle plate 2 increases, and then the baffle plate 1 and the baffle plate 2 will be in an inclined state. Then, under the action of gravity, the polymer burrs in the box will fall down from the open gap between the baffle plate 1 and the baffle plate 2 and be crushed. Because the worm and the worm wheel have self-locking properties, after the distance between the baffle plate 1 and the baffle plate 2 is adjusted to a suitable size, when the rocker is stopped, the baffle plate 1 and the baffle plate 2 will no longer rotate, so that the material can be fed evenly, ensuring that the polymer burrs can be crushed more finely.

[0011] When the polymer burr waste is crushed and falls into the collection box, the staff pushes the pin in the direction of the rocker to move the pin in the slide slot, and the upper end of the pin will move in the limit slot. At this time, the spring will be squeezed and will shrink until the upper end of the pin can no longer move in the limit slot. Then, the collection box can be pulled out of the box body. At the same time, the upper end of the pin will also move out from the exit of the limit slot. Then, at this time, under the action of the spring rebound, the spring will restore the pin to its original position in the slide slot. Then, the collection box and the crushed polymer burr waste can be processed, and when installing, Push the latch in the direction of the rocker to move the latch in the slide slot. At this time, the spring will shrink due to compression until the latch can no longer move in the slide slot. Then, put the collection box into the box so that the upper end of the latch enters the limit slot through the exit of the limit slot. After the collection box is completely in the box, release your hand. Under the action of the spring rebound, the spring will restore the latch to its original position in the slide slot, and the upper end of the latch will also move in the limit slot away from the rocker until the latch can no longer move. At this time, the collection box will be limited. This process does not require the use of specific tools for installation and disassembly, and is relatively convenient.

[0012] In the above technical solution, further, the worm is provided with two sections of spiral patterns with opposite rotation directions, one end of the worm passes through one side of the power cavity and extends to the outside and is fixedly installed with a rocker, and one end of the worm is rotatably connected to the box.

[0013] In this technical solution, it is ensured that the worm can drive the two worm wheels to rotate towards or oppositely when rotating; the staff can more conveniently rotate the worm through the rocker; and it is ensured that one end of the worm can rotate in the box.

[0014] In the above technical solution, further, one end of the two worm wheels is an integrally formed structure with baffle plate 1 and baffle plate 2 respectively.

[0015] In this technical solution, the structural stability between the two worm gears and the baffle plate 1 and the baffle plate 2 is ensured.

[0016] In the above technical solution, further, the latch is slidably connected to the slide slot, the upper end of the latch is slidably connected to the limit slot, and the two ends of the spring are tightly welded to one side of the latch and the inner wall of the slide slot respectively.

[0017] In the technical solution, it is ensured that the latch can slide in the slide groove; it is ensured that the upper end of the latch can slide in the limit groove; and it is ensured that the structure of the spring is stable.

[0018] In the above technical solution, further, the cross-section of the latch is L-shaped, and the length of the slide groove is greater than the length of the limiting groove.

[0019] In the present technical solution, the L-shaped structure can facilitate the staff to move the latch, and ensure that the latch can slide in the slide groove and enter the limit groove.

[0020] In the above technical solution, further, the worm and the rocker are an integrally formed structure.

[0021] In this technical solution, the structural stability between the worm and the rocker is ensured.

[0022] The beneficial effects of the utility model are:

[0023] 1. The polymer burr waste crushing and recovery device, when feeding, through the set baffle plate 1, baffle plate 2, power chamber, two worm wheels, worm and rocker, when adjusting the distance between baffle plate 1 and baffle plate 2, only need to turn the rocker by hand to drive the worm to rotate, under the action of meshing, the worm will drive the two worm wheels to rotate, then the two worms will respectively drive baffle plate 1 and baffle plate 2 to rotate, so that the distance between baffle plate 1 and baffle plate 2 becomes larger, because the worm and the worm wheel are self-locking, thus ensuring that baffle plate 1 and baffle plate 2 can be fixed, ensuring that the distance between baffle plate 1 and baffle plate 2 can be adjusted, thereby adjusting the feeding speed, so that the polymer burr waste can be crushed more thoroughly, and the existence of larger polymer burr waste can be avoided.

[0024] 2. When disassembling or installing the collection box of the polymer rough edge waste crushing and recovery device, the staff only needs to push the latch by hand to complete the disassembly or installation through the provided limit grooves, slide grooves, springs, cylinders and latches, without the need to use specific tools, which is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 This is one of the internal structure diagrams of the box in the utility model;

[0027] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0028] Figure 4 This is a schematic diagram of the internal structure of the collection box in the utility model;

[0029] Figure 5 For this utility model Figure 4 The enlarged structural diagram at B in the middle;

[0030] Figure 6 This is the second schematic diagram of the internal structure of the box in the present utility model.

[0031] The symbols in the figure are:

[0032] 1. Box body; 2. Collection box; 3. Latch; 4. Limiting groove; 6. Baffle 1; 7. Baffle 2; 8. Power chamber; 9. Worm gear; 10. Worm; 11. Rocker; 12. Slide; 13. Spring; 14. Cylinder. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0034] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0035] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0036] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0037] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0038] Embodiment 1:

[0039] See also Figure 1 - Figure 6 As shown, this embodiment provides a polymer burr waste crushing and recovery device, including a box body 1, and also includes:

[0040] Baffle 1 6 and baffle 2 7, both baffle 1 6 and baffle 2 7 are rotatably installed in the box body 1 and are located above the crushing roller in the box body 1, a power chamber 8 is opened in the box body 1, a worm 10 is rotatably installed in the power chamber 8, a worm wheel 9 is symmetrically rotatably installed in the power chamber 8 and located at the bottom of the worm 10, the worm wheel 9 is meshed with the worm 10, and one end of the two worm wheels 9 passes through one side of the power chamber 8 and is coaxially connected to baffle 1 6 and baffle 2 7 respectively;

[0041] A collecting box 2 is slidably installed in the box body 1, and the collecting box 2 is located below the crushing roller in the box body 1. A slide groove 12 is provided on the top of the collecting box 2, and a limiting groove 4 is provided on the box body 1 and located at the top of the slide groove 12. A cylinder 14 is fixedly installed in the slide groove 12, and a latch 3 is slidably installed on the cylinder 14. The upper end of the latch 3 extends into the limiting groove 4, and the other end of the latch 3 passes through one side of the slide groove 12 and extends to the outside. A spring 13 is sleeved on the cylinder 14 and located on one side of the latch 3.

[0042] When in use, first put a proper amount of polymer burrs into the box 1 and place them on the top of baffle 1 6 and baffle 2 7. Then, the whole device can be powered on and work can be started. Then, the staff can use their hands to turn the rocker 11 forward to make the rocker 11 drive the worm 10 to rotate. Under the action of meshing, and because the two sections of the spiral lines on the worm 10 rotate in opposite directions, the worm 10 will drive the two worm wheels 9 to rotate in opposite directions. Then, the two worm wheels 9 will respectively drive one side of baffle 1 6 and one side of baffle 2 7 to rotate downward, so that one side of baffle 1 6 can rotate downward. The distance between the baffle plate 1 and one side of the baffle plate 2 7 increases, and then the baffle plate 1 6 and the baffle plate 2 7 will be in an inclined state. Then, under the action of gravity, the polymer burrs in the box body 1 will fall down from the open gap between the baffle plate 1 6 and the baffle plate 2 7 and be crushed. Because the worm 10 and the worm wheel 9 have self-locking properties, after the distance between the baffle plate 1 6 and the baffle plate 2 7 is adjusted to a suitable size, when the rocker 11 is stopped, the baffle plate 1 6 and the baffle plate 2 7 will not rotate again, so that the material can be fed evenly, ensuring that the polymer burrs can be crushed more finely.

[0043] After the polymer burr waste is crushed and all falls into the collecting box 2, the staff member pushes the latch 3 in the direction of the rocker 11 to make the latch 3 move in the slide groove 12, and the upper end of the latch 3 moves in the limit groove 4. At this time, the spring 13 is squeezed and will shrink until the upper end of the latch 3 can no longer move in the limit groove 4. Then, the collecting box 2 can be pulled out of the box body 1. At the same time, the upper end of the latch 3 will also move out from the exit of the limit groove 4. Then, at this time, under the action of the rebound of the spring 13, the spring 13 will restore the latch 3 to its original position in the slide groove 12. Then, the collecting box 2 and the crushed polymer burr waste can be processed. When installing, the staff member pushes the latch 3 in the direction of the rocker 11 again. The latch 3 is moved in the direction of the rod 11 to move the latch 3 in the slide slot 12. At this time, the spring 13 is squeezed and will shrink until the latch 3 can no longer move in the slide slot 12. Subsequently, the collection box 2 is placed in the box body 1 so that the upper end of the latch 3 enters the limit slot 4 through the exit of the limit slot 4. After the collection box 2 is completely in the box body 1, release your hand. Under the action of the spring 13 rebounding, the spring 13 will restore the latch 3 to its original position in the slide slot 12, and the upper end of the latch 3 will also move in the limit slot 4 away from the rocker 11 until the latch 3 can no longer move. At this time, the collection box 2 will be limited. This process does not require the use of specific tools for installation and disassembly, and is relatively convenient.

[0044] Embodiment 2:

[0045] The present embodiment provides a polymer burr waste crushing and recovery device. In addition to the technical solutions of the above-mentioned embodiments, it also has the following technical features: the worm 10 is provided with two sections of worm patterns with opposite rotation directions, one end of the worm 10 passes through one side of the power chamber 8 and extends to the outside and is fixedly installed with a rocker 11, and one end of the worm 10 is rotatably connected to the box body 1.

[0046] Among them, it is ensured that the worm 10 can drive the two worm wheels 9 to rotate towards or oppositely when rotating; the staff can more conveniently rotate the worm 10 through the rocker 11; and it is ensured that one end of the worm 10 can rotate in the box 1.

[0047] Embodiment 3:

[0048] This embodiment provides a polymer burr waste crushing and recovery device, which, in addition to the technical solutions of the above embodiments, also has the following technical features: one end of the two worm gears 9 is an integrally formed structure with baffle 1 6 and baffle 2 7 respectively.

[0049] The structural stability between the two worm wheels 9 and the baffle plate 1 6 and the baffle plate 2 7 is ensured.

[0050] Embodiment 4:

[0051] The present embodiment provides a polymer burr waste crushing and recovery device, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features: the pin 3 is slidably connected to the slide groove 12, the upper end of the pin 3 is slidably connected to the limit groove 4, and the two ends of the spring 13 are tightly welded to one side of the pin 3 and the inner wall of the slide groove 12 respectively.

[0052] Among them, it is ensured that the latch pin 3 can slide in the slide groove 12; it is ensured that the upper end of the latch pin 3 can slide in the limit groove 4; and it is ensured that the structure of the spring 13 is stable.

[0053] Embodiment 5:

[0054] This embodiment provides a polymer burr waste crushing and recovery device, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features: the cross-section of the latch 3 is L-shaped, and the length of the slide groove 12 is greater than the length of the limit groove 4.

[0055] The L-shaped structure can facilitate the staff to move the latch 3 , thereby ensuring that the latch 3 can slide in the slide groove 12 and enter the limit groove 4 .

[0056] Embodiment 6:

[0057] This embodiment provides a polymer burr waste crushing and recovery device, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the worm 10 and the rocker 11 are an integrally formed structure.

[0058] The structural stability between the worm 10 and the rocker 11 is ensured.

[0059] Working principle: When in use, first put an appropriate amount of polymer burrs into the box body 1 and on the top of baffle 1 6 and baffle 2 7, then the whole device can be powered on and put into operation, then the staff can use their hands to turn the rocker 11 forward, so that the rocker 11 drives the worm 10 to rotate, under the action of meshing, and because the two sections of the worm pattern on the worm 10 rotate in opposite directions, the worm 10 will drive the two worm wheels 9 to rotate in opposite directions when rotating, and then the two worm wheels 9 will respectively drive one side of baffle 1 6 and one side of baffle 2 7 to rotate downward, so that one side of baffle 1 6 and one side of baffle 2 7 are connected. The distance between the two baffles increases, and then the baffle 1 6 and the baffle 2 7 will be in an inclined state. Then, under the action of gravity, the polymer burrs in the box body 1 will fall down evenly from the opened gap between the baffle 1 6 and the baffle 2 7 and be crushed. Because the worm 10 and the worm wheel 9 have self-locking properties, after the distance between the baffle 1 6 and the baffle 2 7 is adjusted to a suitable size, when the rocker 11 is stopped, the baffle 1 6 and the baffle 2 7 will no longer rotate, so that the material can be fed evenly, ensuring that the polymer burrs can be crushed more thoroughly and avoiding the existence of excessive polymer burrs.

[0060] After the polymer burr waste is crushed and all falls into the collecting box 2, the staff member pushes the latch 3 in the direction of the rocker 11 to make the latch 3 move in the slide groove 12, and the upper end of the latch 3 moves in the limit groove 4. At this time, the spring 13 is squeezed and will shrink until the upper end of the latch 3 can no longer move in the limit groove 4. Then, the collecting box 2 can be pulled out of the box body 1. At the same time, the upper end of the latch 3 will also move out from the exit of the limit groove 4. Then, at this time, under the action of the rebound of the spring 13, the spring 13 will restore the latch 3 to its original position in the slide groove 12. Then, the collecting box 2 and the crushed polymer burr waste can be processed. When installing, the staff member pushes the latch 3 in the direction of the rocker 11 again. The latch 3 is moved in the direction of the rod 11 to move the latch 3 in the slide slot 12. At this time, the spring 13 is squeezed and will shrink until the latch 3 can no longer move in the slide slot 12. Subsequently, the collection box 2 is placed in the box body 1 so that the upper end of the latch 3 enters the limit slot 4 through the exit of the limit slot 4. After the collection box 2 is completely in the box body 1, release your hand. Under the action of the spring 13 rebounding, the spring 13 will restore the latch 3 to its original position in the slide slot 12, and the upper end of the latch 3 will also move in the limit slot 4 away from the rocker 11 until the latch 3 can no longer move. At this time, the collection box 2 will be limited. This process does not require the use of specific tools for installation and disassembly, and is relatively convenient.

[0061] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A polymer burr waste crushing and recovery device, comprising a housing (1), characterized in that: Also includes: baffle plate 1 (6) and baffle plate 2 (7), said baffle plate 1 (6) and baffle plate 2 (7) are both rotatably mounted in a housing (1) and located above a crushing roller in the housing (1), said housing (1) is provided with a power chamber (8), a worm (10) is rotatably mounted in said power chamber (8), a worm wheel (9) is symmetrically rotatably mounted in said power chamber (8) and located at the bottom of said worm wheel (10), said worm wheel (9) meshes with said worm wheel (10), and one end of each of said two worm wheels (9) passes through one side of said power chamber (8) and is coaxially connected to said baffle plate 1 (6) and said baffle plate 2 (7) respectively; A collection box (2), the collection box (2) is slidably installed in the box body (1), and the collection box (2) is located below the crushing roller in the box body (1), a slide groove (12) is provided on the top of the collection box (2), a limiting groove (4) is provided on the box body (1) and located at the top of the slide groove (12), a cylinder (14) is fixedly installed in the slide groove (12), and a latch (3) is slidably installed on the cylinder (14), the upper end of the latch (3) extends into the limiting groove (4), and the other end of the latch (3) passes through one side of the slide groove (12) and extends to the outside, and a spring (13) is sleeved on the cylinder (14) and located on one side of the latch (3).

2. The polymer burr waste crushing and recovery device according to claim 1 is characterized in that: The worm (10) is provided with two sections of spiral patterns with opposite rotation directions. One end of the worm (10) passes through one side of the power chamber (8) and extends to the outside and is fixedly mounted with a rocker (11). One end of the worm (10) is rotatably connected to the box (1).

3. The polymer burr waste crushing and recovery device according to claim 1 is characterized in that: One end of the two worm wheels (9) is an integrally formed structure with baffle plate 1 (6) and baffle plate 2 (7) respectively.

4. The polymer burr waste crushing and recovery device according to claim 1 is characterized in that: The latch (3) is slidably connected to the slide groove (12), the upper end of the latch (3) is slidably connected to the limit groove (4), and the two ends of the spring (13) are tightly welded to one side of the latch (3) and the inner wall of the slide groove (12), respectively.

5. The polymer burr waste crushing and recovery device according to claim 1, characterized in that: The cross section of the latch pin (3) is L-shaped, and the length of the sliding groove (12) is greater than the length of the limiting groove (4).

6. The polymer burr waste crushing and recovery device according to claim 2, characterized in that: The worm (10) and the rocker (11) are an integrally formed structure.

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