Pulse coupling injection device

Abstract

The invention discloses a pulse coupling injection device which comprises a device panel and a conveying line, an insertion groove is formed in the device panel, an inner communicating rod is fixedly connected in the insertion groove, one end of the conveying line is fixedly connected with an outer communicating cylinder matched with the inner communicating rod, and the outer side of the conveying line is rotationally connected with a connecting cylinder. Two groups of embedding blocks are fixedly connected to the inner side of the lower part of the connecting cylinder, a connecting groove matched with the connecting cylinder is formed in the lower part of the inserting groove, two groups of embedding grooves matched with the embedding blocks are formed in the inner side of the upper part of the connecting groove, two groups of rotating grooves are formed in the inner side of the lower part of the connecting groove, and two groups of connecting frames are fixedly connected to the upper part of the device panel. A first sliding rod is fixedly connected to the interior of the connecting frame, first connecting lugs are slidably connected to the outer side of the first sliding rod, an outer shielding plate is fixedly connected between the front first connecting lug and the rear first connecting lug, and the line connecting position of the pulse coupling device is prevented from being damaged.

Description

Technical Field

[0001] The present invention relates to the technical field of pulse coupling, in particular to a pulse coupling injection device. Background Art

[0002] A pulse coupling injection device is a device used to couple and inject pulse energy or signals into a specific system or device. Its core function is to achieve efficient transmission and injection of energy or signals, and it has important applications in many fields.

[0003] A pulse coupler is a device that can transmit pulse signals or energy between different systems. Usually, a transmission line is inserted into the pulse coupler to output the pulse coupled signal. However, when the pulse coupler is turned on and not used, external impurities can easily fall into the signal output hole, causing signal distortion and reduced efficiency. In severe cases, short circuit failure or permanent damage can occur. When the transmission line is connected, external tension can easily cause the transmission line to detach from the signal hole, causing signal interruption or even equipment damage. Therefore, traditional pulse couplers lack protection for line connections, which can easily cause equipment damage. Summary of the Invention

[0004] The object of the present invention is to provide a pulse coupled injection device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pulse coupling injection device, comprising a device panel and a conveying line, an insertion slot is provided inside the device panel, an internal connecting rod is fixedly connected inside the insertion slot, one end of the conveying line is fixedly connected to an external connecting tube that matches the internal connecting rod, and a connecting tube is rotatably connected to the outside of the conveying line, two groups of embedded blocks are fixedly connected to the inner side of the lower part of the connecting tube, a connecting slot that matches the connecting tube is provided at the lower part of the insertion slot, two groups of embedded slots that match the embedded blocks are provided on the inner side of the upper part of the connecting slot, two groups of rotating slots are provided on the inner side of the lower part of the connecting slot, two groups of connecting frames are fixedly connected to the upper part of the device panel, a first sliding rod is fixedly connected to the inside of the connecting frame, a first lug is slidably connected to the outer side of the first sliding rod, and an outer baffle is fixedly connected between the front and rear first lugs.

[0006] Preferably, a positioning rod is slidably connected to the inside of the rotating groove away from the embedding groove, two sets of lifting grooves are opened on the inner side of the device panel, a lifting piece is fixedly connected to the lower part of the positioning rod, and the lifting piece is slidably connected to the inside of the lifting groove, a third spring is fixedly connected between the lifting piece and the lifting groove, and the third spring is sleeved on the outside of the positioning rod, a round head is fixedly connected to the upper part of the positioning rod, and a round hole matching the round head is opened at the lower part of the embedding block.

[0007] Preferably, a first spring is fixedly connected between the first connecting ear and the connecting frame, and the first spring is sleeved on the outside of the first sliding rod.

[0008] Preferably, the outer shielding plate is provided with a circular groove matching the connecting tube on one side facing each other, the inner shielding plate is slidably connected to the inside of the outer shielding plate, the inner shielding plate is fixedly connected with second ears on both sides of one facing end, the second ear is slidably connected to the second sliding rod inside, the two ends of the second sliding rod are fixedly connected to the inner wall of the outer shielding plate, a second spring is fixedly connected between the second ear and the outer shielding plate, and the second spring is sleeved on the outside of the second sliding rod.

[0009] Preferably, a pulling plate is fixedly connected to one side of the upper portion of the outer shielding plate.

[0010] Preferably, a tooth groove is provided on one side of the lower portion of the outer baffle plate, a rack is fixedly connected to the inside of the tooth groove, a first mounting groove is provided on both sides of the upper portion of the device panel, a first rotating shaft is rotatably connected to the inside of the first mounting groove, a connecting gear meshing with the tooth groove is fixedly connected to the outside of the first rotating shaft, a changing gear is meshed with the lower portion of the connecting gear on one side, a second rotating shaft is fixedly connected to the middle portion of the changing gear, both ends of the second rotating shaft are rotatably connected to the inner wall of the first mounting groove, a second mounting groove is provided inside the device panel, the first rotating shaft and the second rotating shaft are rotatably connected to the inner wall of the second mounting groove on one side, and a transmission belt is sleeved on the outside of the first rotating shaft and the second rotating shaft on one side.

[0011] Preferably, two sets of limit plates are fixedly connected to the outside of the conveyor line, and the limit plates are arranged on both sides of the upper part of the connecting cylinder. A fourth spring is fixedly connected between the limit plates and the connecting cylinder on the lower side, and the fourth spring is sleeved on the outside of the conveyor line.

[0012] Preferably, two groups of follower grooves are opened on the upper side of the interior of the connecting cylinder, and follower blocks are fixedly connected to both sides of the lower limit plate, and the follower blocks are slidably connected to the interior of the follower grooves.

[0013] Preferably, a first connecting piece is fixedly connected to one side of the upper limiting plate, a connecting rope is sleeved inside the first connecting piece, a second connecting piece is sleeved outside the other end of the connecting rope, and a cylinder cover is fixedly connected to the lower part of the second connecting piece.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention pushes the first ear by the first spring, so that the outer shielding plates on both sides move toward the middle, thereby blocking the gap at the insertion slot. The transmission line and the connecting cylinder are inserted into the insertion slot, and the inner connecting rod is inserted into the outer connecting cylinder to achieve the connection of the transmission line. The connecting cylinder is inserted into the connecting slot, and the embedded block is inserted into the rotating slot through the embedded slot. By rotating the connecting cylinder, the embedded block is rotated to the other side by the rotating slot, thereby limiting the position of the outer connecting cylinder and preventing the connecting cylinder from being separated from the inner connecting rod by external tension. The inserted transmission line can be locked, and the internal part of the line hole can be shielded and protected when the line hole is not in use, thereby preventing the line connection of the pulse coupling device from being damaged.

[0016] 2. The present invention also compresses the fourth spring by driving the conveyor line to slide along the connecting tube when the conveyor line is suddenly pulled by an external force, thereby absorbing the larger pulling force and preventing the outer connecting tube from being suddenly pulled out by excessive external force and causing damage to the inner connecting rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is an enlarged view of the local structure of the control panel of the present invention from the first viewing angle;

[0018] Figure 2 This is a cross-sectional view of the three-dimensional structure of the present invention from a second viewing angle;

[0019] Figure 3 This is a cross-sectional view of the three-dimensional structure of the present invention from a third viewing angle;

[0020] Figure 4 This is a cross-sectional view of the lifting slot structure from a fourth viewing angle of the present invention;

[0021] Figure 5 This is a cross-sectional view of the outer shielding plate structure at a fifth viewing angle of the present invention;

[0022] Figure 6 A cross-sectional view of the rack and pinion structure from a sixth viewing angle of the present invention;

[0023] Figure 7 This is a cross-sectional view of the seventh viewing angle control groove structure of the present invention.

[0024] In the figure: 1, device panel; 2, insertion slot; 3, internal connecting rod; 4, conveyor line; 5, external connecting cylinder; 6, connecting slot; 7, embedding slot; 8, rotating slot; 9, connecting cylinder; 10, embedding block; 11, lifting slot; 12, positioning rod; 13, lifting plate; 14, third spring; 15, round head; 16, round hole; 17, connecting frame; 18, first sliding rod; 19, first ear; 20, external shielding plate; 21, first spring; 22, second sliding rod; 23, first Second spring; 24. Second ear; 25. Inner shielding plate; 26. Circular groove; 27. Pulling plate; 28. Tooth groove; 29. ​​Rack; 30. First mounting groove; 31. First rotating shaft; 32. Connecting gear; 33. Second rotating shaft; 34. Changing gear; 35. Second mounting groove; 36. Transmission belt; 37. Limiting plate; 38. Fourth spring; 39. Follower block; 40. Follower groove; 41. First connecting piece; 42. Connecting rope; 43. Second connecting piece; 44. Cylinder cover. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-7The present invention provides a technical solution: a pulse coupling injection device, including a device panel 1 and a conveying line 4. An insertion slot 2 is provided inside the device panel 1, an internal connecting rod 3 is fixedly welded inside the insertion slot 2, and an external connecting tube 5 matching the internal connecting rod 3 is fixedly welded at one end of the conveying line 4. The device panel 1 is a partial cross-section of a panel of an existing pulse coupler. By inserting the external connecting tube 5 at the front of the conveying line 4 into the insertion slot 2 and inserting the external connecting tube 5 into the internal connecting rod 3, the signal transmitted by the pulse coupler is output by the conveying line 4, which is a description of the existing technical work of the existing pulse coupler. A connecting tube 9 is rotatably installed on the outside of the conveying line 4, and two groups of embedded blocks 10 are fixedly welded on the inner side of the lower part of the connecting tube 9. A connecting slot 6 matching the connecting tube 9 is provided at the lower part of the insertion slot 2, and two groups of embedded slots 7 matching the embedded blocks 10 are provided on the inner side of the upper part of the connecting slot 6. Two groups of rotating slots 8 are provided on the inner side of the lower part of the connecting slot 6. The connecting tube 9 on the outside of the line 4 is inserted into the connecting groove 6, and the embedded block 10 is inserted into the rotating groove 8 by the embedded groove 7. By rotating the connecting tube 9, the embedded block 10 is rotated to the other side by the rotating groove 8, thereby preventing the connecting tube 9 from being separated from the insertion groove 2, and limiting the position of the external connecting tube 5 to prevent the external connecting tube 5 from being separated from the internal connecting rod 3 by external tension. Two sets of connecting frames 17 are threadedly connected to the upper part of the device panel 1, and a first sliding rod 18 is fixedly welded inside the connecting frame 17. A first ear 19 is slidably installed on the outer side of the first sliding rod 18, and an outer baffle 20 is fixedly welded between the front and rear first ears 19. The outer baffle 20 blocks the upper part of the insertion groove 2 to prevent dust from entering the insertion groove 2, thereby preventing damage to the line when the line is connected. When the conveying line 4 and the connecting tube 9 are inserted, the first ear 19 slides along the first sliding rod 18, thereby opening the outer baffle 20, so that the conveying line 4 can be used normally;

[0027] The rotation groove 8 is away from the embedding groove 7 and a positioning rod 12 is slidably installed inside the end. Two sets of lifting grooves 11 are provided on the inner side of the device panel 1. A lifting piece 13 is fixedly welded at the lower part of the positioning rod 12. The lifting piece 13 is slidably installed inside the lifting groove 11. A third spring 14 is fixedly welded between the lifting piece 13 and the lifting groove 11. The third spring 14 is sleeved on the outer side of the positioning rod 12. A round head 15 is fixedly welded on the upper part of the positioning rod 12. A round hole 16 that matches the round head 15 is provided at the lower part of the embedding block 10. When the embedding block 10 is rotated to the other side by the rotation groove 8, the positioning rod 12 is pushed downward by the round head 15, and the third spring 14 is stretched. When the round hole 16 is facing the round head 15, the third spring 14 pulls the lifting piece 13 to make the round head 15 enter the round hole 16, preventing the embedding block 10 from rotating arbitrarily. The arrangement of the round head 15 and the round hole 16 ensures that when there is sufficient rotational force for the connecting tube 9, the round head 15 can smoothly disengage from the round hole 16;

[0028] A first spring 21 is fixedly welded between the first lug 19 and the connecting frame 17. The first spring 21 is sleeved on the outside of the first sliding rod 18. Under normal tension, the first spring 21 pushes the first lug 19 so that the outer shielding plates 20 on both sides can normally cover the insertion slot 2.

[0029] The outer shielding plate 20 is provided with a circular groove 26 that cooperates with the connecting tube 9 on one side facing each other, and an inner shielding plate 25 is slidably installed inside the outer shielding plate 20, and second ears 24 are fixedly welded on both sides of the inner shielding plate 25 facing each other at one end. A second sliding rod 22 is slidably installed inside the second ear 24, and both ends of the second sliding rod 22 are fixedly welded to the inner wall of the outer shielding plate 20. A second spring 23 is fixedly welded between the second ear 24 and the outer shielding plate 20, and the second spring 23 is sleeved on the outside of the second sliding rod 22. When the second spring 23 is in a normal telescopic state, it pushes the second ear 24 to drive the inner shielding plate 25 to block the circular groove 26. When the connecting tube 9 is inserted into the insertion groove 2, the connecting tube 9 can push the inner shielding plate 25 to move to both sides, thereby ensuring the sealing of the insertion groove 2 when the connecting tube 9 is inserted;

[0030] A pulling plate 27 is fixedly welded to one side of the upper portion of the outer shielding plate 20 to facilitate pulling the outer shielding plate 20 to move to both sides;

[0031] A tooth groove 28 is provided on one side of the lower portion of the outer shielding plate 20, and a rack 29 is fixedly welded inside the tooth groove 28. A first mounting groove 30 is provided on both sides of the upper portion of the device panel 1. A first rotating shaft 31 is rotatably installed inside the first mounting groove 30. A connecting gear 32 meshing with the tooth groove 28 is fixedly welded on the outer side of the first rotating shaft 31. A direction-changing gear 34 is meshed and connected to the lower portion of the connecting gear 32 on one side. A second rotating shaft 33 is fixedly welded in the middle of the direction-changing gear 34. Both ends of the second rotating shaft 33 are rotatably connected to the inner wall of the first mounting groove 30. A second mounting groove 35 is provided inside the device panel 1. The first rotating shaft 31 and the second The rotating shaft 33 is rotatably connected to the inner wall of the second mounting groove 35, and a transmission belt 36 is sleeved on the outer side of the first rotating shaft 31 and the second rotating shaft 33 on one side. When the outer shielding plate 20 on one side moves, the rack 29 drives the connecting gear 32 on one side and the first rotating shaft 31 to rotate, and drives the direction-changing gear 34 and the second rotating shaft 33 to rotate in the opposite direction. The second rotating shaft 33 drives the connecting gear 32 on the other side to rotate through the transmission belt 36, thereby driving the outer shielding plate 20 on the other side to rotate in the opposite direction through the rack 29. The outer shielding plates 20 on both sides can be moved simultaneously by manipulating the outer shielding plate 20 on one side, which is convenient for personnel operation;

[0032] Two groups of limit plates 37 are fixedly welded on the outside of the conveying line 4. The limit plates 37 are arranged on both sides of the upper part of the connecting cylinder 9 to limit the up and down movement distance of the connecting cylinder 9. A fourth spring 38 is fixedly welded between the lower limit plate 37 and the connecting cylinder 9. The fourth spring 38 is sleeved on the outside of the conveying line 4. The fourth spring 38 is a spring with sufficient elasticity. In the normal telescopic state, it is ensured that the connecting cylinder 9 is on the upper side. When the connecting cylinder 9 and the outer connecting cylinder 5 are firmly connected, due to the sufficient elasticity of the fourth spring 38, it will not shake due to normal changes in the outside world. When the conveying line 4 is suddenly pulled by an external force, the conveying line 4 is driven to slide along the inside of the connecting cylinder 9, thereby compressing the fourth spring 38, thereby absorbing the larger pulling force, preventing the outer connecting cylinder 5 from being suddenly pulled out by excessive external force and causing damage to the inner connecting rod 3;

[0033] Two sets of follower grooves 40 are opened on the upper side of the connecting cylinder 9. Follower blocks 39 are fixedly welded on both sides of the lower limit plate 37. The follower blocks 39 are slidably installed inside the follower grooves 40 to ensure that the conveyor line 4 rotates with the connecting cylinder 9 and prevent the torsion between the connecting cylinder 9 and the fourth spring 38 from damaging the fourth spring 38.

[0034] A first connecting piece 41 is fixedly welded to one side of the upper limiting plate 37, a connecting rope 42 is sleeved inside the first connecting piece 41, a second connecting piece 43 is sleeved on the other end of the connecting rope 42, and a cylinder cover 44 is fixedly welded to the lower part of the second connecting piece 43. The cylinder cover 44 can be threadedly installed on the outside of the connecting cylinder 9 when the conveying line 4 is not in use, thereby protecting the external connecting cylinder 5 and preventing impurities from entering.

[0035] Working principle: When the invention is in use, the outer shielding plate 20 on one side is pulled by the pulling plate 27, and the connecting gear 32 and the first rotating shaft 31 on one side are driven to rotate through the rack 29, and the direction-changing gear 34 and the second rotating shaft 33 are driven to rotate in the opposite direction. The second rotating shaft 33 drives the connecting gear 32 on the other side to rotate through the transmission belt 36, thereby driving the outer shielding plate 20 on the other side to rotate in the opposite direction through the rack 29, so that the insertion groove 2 is opened, and the conveying line 4 and the connecting cylinder 9 are inserted into the insertion groove 2, and the inner connecting rod 3 is inserted into the outer connecting cylinder 5 to realize the connection of the conveying line 4. The connecting cylinder 9 is inserted into the connecting groove 6, and the embedded block 10 is inserted into the rotating groove 8 through the embedded groove 7. By rotating the connecting cylinder 9, the embedded block 10 is rotated from the rotating groove 8 to the other side, and the round head 15 pushes the positioning rod 12 to move downward, and the third spring 14 is stretched, and when the round hole 16 is facing the round head 15, the third spring 14 pulls the lifting piece 13 to make the round head 15 enter the round hole 16, preventing the embedded block 10 from rotating arbitrarily, thereby preventing the connecting tube 9 from being disengaged from the insertion groove 2, and limiting the position of the external connecting tube 5 to prevent the external pulling force from causing the external connecting tube 5 to be disengaged from the internal connecting rod 3. At this time, the pulling plate 27 is released, and the first spring 21 pushes the first ear 19 to make the outer baffles 20 on both sides move toward the middle, and the connecting tube 9 pushes the inner baffles 25 on both sides to slide along the inside of the outer baffles 20 to block the gap at the insertion groove 2. When the conveying line 4 is suddenly pulled by external force, it drives the conveying line 4 to slide along the connecting tube 9, thereby compressing the fourth spring 38, thereby absorbing the larger pulling force, preventing the outer connecting tube 5 from being suddenly pulled out by excessive external force and causing damage to the inner connecting rod 3.

[0036] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0037] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A pulse coupling injection device, comprising a device panel (1) and a transmission line (4), characterized in that: The device panel (1) is provided with an insertion slot (2) inside, and the insertion slot (2) is fixedly connected to an internal connecting rod (3) inside. One end of the conveying line (4) is fixedly connected to an external connecting tube (5) matching the internal connecting rod (3). The outer side of the conveying line (4) is rotatably connected to a connecting tube (9). The lower inner side of the connecting tube (9) is fixedly connected to two groups of embedded blocks (10). The lower part of the insertion slot (2) is provided with a connecting slot (6) matching the connecting tube (9). The upper inner side of the connecting slot (6) is provided with two groups of embedded slots (7) matching the embedded blocks (10). The lower inner side of the connecting slot (6) is provided with two groups of rotating slots (8). The upper part of the device panel (1) is fixedly connected to two groups of connecting frames (17). The connecting frame (17) is fixedly connected to a first sliding rod (18). The outer side of the first sliding rod (18) is slidably connected to a first connecting ear (19). An external shielding plate (20) is fixedly connected between the front and rear first connecting ears (19).

2. A pulse coupled injection device according to claim 1, characterized in that: The rotating groove (8) is slidably connected to a positioning rod (12) at one end away from the embedding groove (7), and two groups of lifting grooves (11) are provided on the inner side of the device panel (1). The lower part of the positioning rod (12) is fixedly connected to a lifting piece (13), and the lifting piece (13) is slidably connected to the inside of the lifting groove (11). A third spring (14) is fixedly connected between the lifting piece (13) and the lifting groove (11), and the third spring (14) is sleeved on the outer side of the positioning rod (12). The upper part of the positioning rod (12) is fixedly connected to a round head (15), and the lower part of the embedding block (10) is provided with a round hole (16) that matches the round head (15).

3. The pulse coupled injection device according to claim 1, characterized in that: A first spring (21) is fixedly connected between the first connecting ear (19) and the connecting frame (17), and the first spring (21) is sleeved on the outside of the first sliding rod (18).

4. The pulse coupled injection device according to claim 1, characterized in that: The outer shielding plate (20) is provided with a circular groove (26) for matching the connecting tube (9) on one side facing each other, and the inner shielding plate (25) is slidably connected inside the outer shielding plate (20), and the inner shielding plate (25) is fixedly connected with second ears (24) on both sides facing each other at one end, and the second sliding rod (22) is slidably connected inside the second ear (24), and the two ends of the second sliding rod (22) are fixedly connected to the inner wall of the outer shielding plate (20), and a second spring (23) is fixedly connected between the second ear (24) and the outer shielding plate (20), and the second spring (23) is sleeved on the outside of the second sliding rod (22).

5. The pulse coupled injection device according to claim 1, characterized in that: A pulling plate (27) is fixedly connected to one side of the upper portion of the outer shielding plate (20).

6. The pulse coupled injection device according to claim 1, characterized in that: A tooth groove (28) is provided on one side of the lower portion of the outer shielding plate (20), and a rack (29) is fixedly connected inside the tooth groove (28). First mounting grooves (30) are provided on both sides of the upper portion of the device panel (1). A first rotating shaft (31) is rotatably connected inside the first mounting groove (30), and a connecting gear (32) meshing with the tooth groove (28) is fixedly connected to the outer side of the first rotating shaft (31). A lower portion of the connecting gear (32) is meshed with a direction-changing gear (34), and a second rotating shaft (33) is fixedly connected to the middle portion of the direction-changing gear (34). Both ends of the second rotating shaft (33) are rotatably connected to the inner wall of the first mounting groove (30). A second mounting groove (35) is provided inside the device panel (1), and the first rotating shaft (31) and the second rotating shaft (33) are rotatably connected to the inner wall of the second mounting groove (35) on one side. A transmission belt (36) is sleeved on the outer side of the first rotating shaft (31) and the second rotating shaft (33) on one side.

7. The pulse coupled injection device according to claim 1, characterized in that: Two groups of limit plates (37) are fixedly connected to the outside of the conveying line (4), and the limit plates (37) are arranged on both sides of the upper part of the connecting cylinder (9). A fourth spring (38) is fixedly connected between the limit plates (37) and the connecting cylinder (9) on the lower side, and the fourth spring (38) is sleeved on the outside of the conveying line (4).

8. The pulse coupled injection device according to claim 7, characterized in that: Two groups of follower grooves (40) are provided on the upper side of the interior of the connecting cylinder (9), and follower blocks (39) are fixedly connected to both sides of the lower limit plate (37), and the follower blocks (39) are slidably connected to the interior of the follower grooves (40).

9. The pulse coupled injection device according to claim 7, characterized in that: A first connecting piece (41) is fixedly connected to one side of the upper limiting plate (37), a connecting rope (42) is sleeved inside the first connecting piece (41), a second connecting piece (43) is sleeved outside the other end of the connecting rope (42), and a cylinder cover (44) is fixedly connected to the lower part of the second connecting piece (43).

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