Intensive care medicine respirator pipeline support fixing device

Abstract

The invention discloses an intensive care medicine breathing machine pipeline support fixing device, and relates to the technical field of breathing machine pipeline supports, the intensive care medicine breathing machine pipeline support fixing device comprises a mounting seat, the mounting seat is fixedly connected with elastic clamping pieces symmetrically distributed along the mounting seat, the mounting seat is fixedly connected with a supporting rod, the supporting rod is rotatably connected with a rotating rod, and the rotating rod is fixedly connected with the elastic clamping pieces. And the rotating rod is rotationally connected with at least two connecting rods which are distributed in series, the rotating rod and the connecting rods are fixedly connected with clamping frames, and the connecting rods on the side away from the mounting base are connected with placing ring frames in an inserted mode. By easily rotating the rotating rod and the connecting rods, the supporting position and angle of the rotating rod or the connecting rods can be rapidly adjusted, stable stretching and supporting of a pipeline are facilitated, the stability and safety of the pipeline in the treatment process are ensured, the operation time is shortened, the operation difficulty is reduced, and the convenience of multiple times of adjustment is improved.

Description

Technical Field

[0001] The invention relates to the technical field of ventilator pipeline brackets, and in particular to a ventilator pipeline bracket fixing device for critical care medicine. Background Art

[0002] A ventilator tube holder is a device used to fix and support the ventilator tube. It is designed to ensure that the tube remains stable during use and prevent displacement or falling off, thereby ensuring the safety of the patient and the treatment effect. It is usually fixed to a bed frame, bed rails or other fixed objects to ensure that the tube is smooth and not compressed, thereby improving the patient's comfort and treatment effect.

[0003] When the ventilator pipeline needs to be adjusted and fixed in multiple sections, multiple brackets are usually required for adjustment and installation. Most existing fixing devices need to be fixed manually one by one, which is not only cumbersome to operate, but also difficult to ensure that each section of the pipeline is adjusted in place during the adjustment process. Repeated adjustments are often required, which is time-consuming and laborious, and makes it difficult for the bracket to adapt to different pipeline layouts and changes in patient position.

[0004] Based on the above situation, the present invention proposes a critical care ventilator pipeline support fixing device. Summary of the invention

[0005] In order to overcome the disadvantage that a bracket is difficult to fix and adjust, the present invention provides a critical care medical ventilator pipeline bracket fixing device.

[0006] The cam is connected with a toothed plate, and the toothed plate is connected with a toothed plate, and the toothed plate is connected with a toothed plate, and the toothed plate is connected with a toothed plate, and the toothed plate is connected with a toothed plate, and the toothed plate is connected with a toothed plate, and the toothed plate is connected with a toothed plate, and the toothed plate is connected with a toothed plate, and the toothed plate is connected with a toothed plate, and the toothed plate is connected with a toothed plate, and the toothed plate is connected with a toothed plate, and the toothed plate is connected with a toothed plate, and the toothed plate is connected with a toothed plate,

[0007] More preferably, it also includes a piston rack, the piston rack is slidably connected to the support rod, a cavity is opened in the support rod on one side close to the piston rack, the piston part of the piston rack and the cavity of the support rod form a cylinder structure, a sliding air pipe is slidably connected between the support rod and the rotating rod, the sliding air pipe is communicated with the cavity of the piston rack, a first clamping frame is fixedly connected to one side of the sliding air pipe close to the adjacent support rod, the first clamping frame moves upward to contact the adjacent clamping block, and is used to limit the adjacent clamping block, in addition to being connected with the nut The connecting rods other than the connecting rod are all fixedly connected with fixed air pipes, the sliding air pipe and the fixed air pipe are slidably connected with a second bracket, the second bracket moves to contact the adjacent blocking block, and is used to limit the adjacent blocking block, the rotating rod and the connecting rods other than the connecting rod connected with the nut are all fixedly connected with fixed cylinders, the connecting rods are connected with the adjacent fixed cylinders, the second bracket is connected with the adjacent fixed cylinder through a hose, and the fixed cylinder is connected with the adjacent fixed air pipe through a channel of the adjacent connecting rod.

[0008] More preferably, a square chain is further included, which is slidably connected to the connecting rod near the side of the placement ring frame, and each section of the square chain is connected by a hinge shaft. The end of the square chain near the nut is fixed to the placement ring frame.

[0009] More preferably, the placement ring frame, the nut, the square chain and the adjacent connecting rod together constitute a telescopic rod clamping structure.

[0010] More preferably, a guide frame is further included, which is slidably connected to the support rod, the piston frame moves upward to contact the guide frame, the mounting seat is slidably connected to a clamping rod corresponding to the elastic clip, the clamping rod is used to limit the adjacent clamping rod, the guide frame has an oblique groove corresponding to the clamping rod, and the guide frame is slidably connected to the corresponding clamping rod through the oblique groove.

[0011] More preferably, it also includes a second fixed frame distributed in pairs, the second fixed frame is configured as a horizontal U-shape, the second fixed frame is fixed to the inside of the cavity of the support rod, the second fixed frame is slidably connected with a card plate, the piston frame moves and contacts the card plate, the support rod is slidably connected with a guide pull frame for pushing and pulling the card plate, and a second spring is fixed between the guide pull frame and the support rod.

[0012] More preferably, the clamping plate is provided with an oblique groove, and the clamping plate is slidably connected to the guide bracket via the oblique groove.

[0013] More preferably, a third spring is further included, and the third spring is fixed between the piston frame and the support rod.

[0014] The beneficial effects are as follows: the present invention can quickly adjust the support position and angle of the rotating rod or the connecting rod by easily rotating the rotating rod and each connecting rod, which facilitates the stable stretching and support of the pipeline and ensures the stability and safety of the pipeline during the treatment process, reduces the operation time and difficulty, and improves the convenience of multiple adjustments.

[0015] The design of the rotating rod and each connecting rod of the present invention is similar to a joint, so that the rotating rod and each connecting rod can be adjusted independently to adapt to different pipeline layouts and changes in patient postures, and can be conveniently folded and stored.

[0016] The present invention can lock all the blocks by pushing the piston rack, thereby locking all the gears, and further locking the rotating rod and all the connecting rods. In this way, all supporting parts of the pipeline of the ventilator can be reinforced.

[0017] The present invention forms a telescopic rod clamping structure by placing a ring frame, a nut, a square chain and adjacent connecting rods, so that the height of the right end of the pipeline can be adjusted conveniently, thereby facilitating the adjustment of the height of the breathing mask.

[0018] The present invention provides a guide frame and a clamping rod so that the operation of the emergency preaching pipeline can be started only after the operation of pushing up the piston frame is completed, thereby ensuring the accuracy of the operation sequence and thus ensuring the stability of the pipeline support.

[0019] The present invention cooperates with the card plate during the upward movement of the piston frame, so that the piston frame is finally locked above the card plate. In this way, there is no need to manually push the piston frame up all the time, and the card plate can release the lock of the piston frame by pulling the guide pull frame backward. At this time, the piston frame is automatically driven to slide downward and reset by the third spring reset, so there is no need to manually push the piston frame down. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure of the mounting seat, elastic clip, support rod and other components of the present invention.

[0022] Figure 3 It is a three-dimensional structural schematic diagram of the gear, the first fixing frame and other components of the present invention.

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the first fixing frame, the clamping block, the first spring and other components of the present invention.

[0024] Figure 5It is a schematic diagram of the three-dimensional structure of the sliding air pipe, the first bracket, the second bracket and other components of the present invention.

[0025] Figure 6 It is a three-dimensional structural schematic diagram of the second bracket, the hose, the fixing tube and other components of the present invention.

[0026] Figure 7 It is a three-dimensional structural schematic diagram of the hose, fixing tube and fixed air pipe of the present invention.

[0027] Figure 8 It is a schematic diagram of the three-dimensional structure of placing the ring frame, nuts, square chains and other components of the present invention.

[0028] Fig. 9 It is a schematic diagram of the three-dimensional structure of the connection rod, the placement ring frame and the square chain separated according to the present invention.

[0029] Fig.10 It is a three-dimensional structural schematic diagram of the piston frame, elastic clips, guide frame and other components of the present invention.

[0030] Fig.11 It is a schematic diagram of the three-dimensional structure of the second fixing frame, the clamping plate, the guide pull frame and other components of the present invention.

[0031] Among them, the above-mentioned drawings include the following figure marks: 1_mounting seat, 2_elastic clip, 3_support rod, 4_rotating rod, 5_connecting rod, 6_clamp frame, 7_placing ring frame, 8_nut, 9_gear, 10_first fixed frame, 11_block, 12_first spring, 13_piston frame, 14_sliding air pipe, 15_first clamp frame, 16_second clamp frame, 17_hose, 18_fixed cylinder, 19_fixed air pipe, 20_square chain, 21_guide frame, 22_clamp rod, 23_second fixed frame, 24_clamp plate, 25_guide pull frame, 26_second spring, 27_third spring. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0033] Embodiment 1: A critical care medical ventilator pipe support fixing device, such as Figure 1-Figure 4As shown, it includes a mounting base 1, and the left and right sides of the mounting base 1 are fixedly connected with elastic clips 2 that are symmetrically distributed along the front and back of the mounting base 1, and the top of the mounting base 1 is fixedly connected with a support rod 3, and the top of the support rod 3 is rotatably connected with a rotating rod 4, and the rotating rod 4 is rotatably connected with three connecting rods 5 distributed in series, and the rotating rod 4 and each connecting rod 5 are fixedly connected with a clamping frame 6 by bolt connection, and the clamping frame 6 is used to clamp various parts of the ventilator pipeline in sections, and the bottom end of the rightmost connecting rod 5 is inserted with a placement ring frame 7, and the lower part of the rightmost connecting rod 5 is threadedly connected with a nut 8, used for fixing the ring frame 7, the lower part of the rotating rod 4, the upper side of the left connecting rod 5, the lower side of the middle connecting rod 5 and the upper side of the right connecting rod 5 are all rotatably connected with gears 9, the upper side inside the support rod 3, the upper side inside the rotating rod 4, the lower side inside the left connecting rod 5 and the upper side inside the middle connecting rod 5 are all fixedly connected with first fixed frames 10 distributed in pairs, and the first fixed frames 10 are slidably connected with a clamping block 11, which is limitedly matched with the adjacent gear 9, and a first spring 12 is fixedly connected between the clamping block 11 and the adjacent first fixed frame 10.

[0034] Since the rotating rod 4 and the adjacent connecting rods 5 can rotate, and the adjacent connecting rods 5 can also rotate, the rotating angle of the rotating rod 4 or each connecting rod 5 is adjusted according to the needs. The specific adjustment operation is as follows: Directly rotate the rotating rod 4 or the connecting rod 5, the rotating rod 4 or the connecting rod 5 drives the gear 9 thereon to rotate, and the gear 9 squeezes the block 11 toward the side of the compressed first spring 12. When the rotation stops, the first spring 12 resets and drives the block 11 to reset to the stuck gear 9. In this way, the user can quickly adjust the supporting position and angle of the rotating rod 4 or the connecting rod 5 by easily rotating the rotating rod 4 and each connecting rod 5, which is convenient for the stable stretching and support of the pipeline. The rotating rod 4 and each connecting rod 5 are designed like joints, so that the rotating rod 4 and each connecting rod 5 can be adjusted independently to adapt to different pipeline layouts and changes in patient position. When it is necessary to adjust again, the rotating rod 4 and each connecting rod 5 can be directly rotated, and the block 11 will automatically clamp the gear 9 to ensure the stability and safety of the pipeline during treatment, reduce the operation time and difficulty, and improve the convenience of multiple adjustments.

[0035] After adjusting the supporting angle, the pipeline of the ventilator is passed through between adjacent elastic clips 2, and then through each clamp frame 6 from left to right in sequence, and finally passed out from the placement ring frame 7. In this way, the pipeline is fixed in sections. After using the device, the rotating rod 4 or each connecting rod 5 is folded and stored in the same angle adjustment method, which is simple and convenient to operate.

[0036] like Figure 5-Figure 7As shown, it also includes a piston frame 13, which is slidably connected to the support rod 3. A cavity is opened on the side of the support rod 3 near the piston frame 13. The piston part of the piston frame 13 and the cavity of the support rod 3 form a cylinder structure. A sliding air pipe 14 is slidably connected between the support rod 3 and the rotating rod 4 along the up and down directions. The sliding air pipe 14 is connected to the cavity of the piston frame 13. A first bracket 15 is fixedly connected to the lower side of the sliding air pipe 14. The first bracket 15 moves upward to contact the adjacent block 11 for limiting the adjacent block 11. Fixed air pipes 19 are fixedly connected to the connecting rods 5 except for the rightmost one. The upper side of the sliding air pipe 14, the lower side of the left fixed air pipe 19 and the upper side of the middle fixed air pipe 19 are all slidably connected with the second bracket 16, the second bracket 16 moves to contact the adjacent block 11, and is used to limit the adjacent block 11. The upper side of the rotating rod 4, the lower side of the left connecting rod 5 and the upper side of the middle connecting rod 5 are fixedly connected with a fixed cylinder 18, and the connecting rods 5 are connected with the adjacent fixed cylinder 18 through a channel. The second bracket 16 is connected with the adjacent fixed cylinder 18 through a hose 17, and the fixed cylinder 18 is connected with the adjacent fixed air pipe 19 through the channel of the adjacent connecting rod 5.

[0037] After adjusting the rotation angle of the rotating rod 4 or each connecting rod 5, the piston frame 13 is pushed upward, and the piston frame 13 injects the gas in the cavity of the support rod 3 into the sliding air pipe 14, and then flows into the fixed air pipes 19 through the hose 17, the fixed cylinder 18 and the channel of the adjacent connecting rod 5 in turn. Under the push of the air pressure in the sliding air pipe 14 and each fixed air pipe 19, each second bracket 16 slides to the side close to the adjacent block 11, so that the block 11 in each rotating rod 4 and the connecting rod 5 is locked and cannot slide at will.

[0038] When the sliding air pipe 14 and the fixed air pipes 19 are filled with gas, the sliding air pipe 14 drives the first bracket 15 to slide upward under the push of the air pressure in the cavity of the support rod 3, so that the block 11 in the support rod 3 is locked and cannot slide freely.

[0039] In this way, all the blocks 11 can be locked by pushing the piston frame 13, so that all the gears 9 are locked, and then the rotating rod 4 and all the connecting rods 5 are locked. In this way, all supporting parts of the pipeline of the ventilator are reinforced.

[0040] When the device needs to be adjusted again during use or needs to be folded up after use, the piston frame 13 is pulled downward so that the gas is drawn back into the cavity of the support rod 3, and the first card frame 15 and all the second card frames 16 are reset, so that all the card blocks 11 can be unlocked, which is simple and convenient to operate.

[0041] Embodiment 2: Based on embodiment 1, Figure 8 and Fig. 9As shown, it also includes a square chain 20, which is slidably connected to the rightmost connecting rod 5. The sections of the square chain 20 are connected by hinge shafts. The lower end of the square chain 20 is fixedly connected to the placement ring frame 7. The placement ring frame 7, the nut 8, the square chain 20 and the adjacent connecting rod 5 together constitute a telescopic rod clamping structure.

[0042] The right end of the pipeline can be connected to a breathing mask. When the height of the breathing mask at the right end of the pipeline needs to be adjusted, the nut 8 can be loosened to release the clamping state, allowing the placement ring frame 7 to freely expand and contract, thereby freely pulling out the length of the square chain 20. After a certain length of the square chain 20 is pulled out and adjusted, axial pressure is generated by rotating the nut 8 to apply sufficient friction or mechanical constraint to the connecting rod 5, so that the connecting rod 5 and the square chain 20 are in close contact, thereby keeping the square chain 20 stationary at a specific position. Under the action of the hinge points of the square chain 20, the placement ring frame 7 naturally droops, thereby causing the right end of the pipeline to droop naturally after adjusting to a certain height.

[0043] Embodiment 3: Based on embodiment 2, Fig.10 As shown, it also includes a guide frame 21, which is slidably connected to the support rod 3, the piston frame 13 moves upward to contact the guide frame 21, and the mounting seat 1 is slidably connected to a clamping rod 22 corresponding to the elastic clip 2 along the front-to-back direction, and the clamping rod 22 is used to limit the adjacent clamping rod 22. The lower part of the guide frame 21 is provided with an oblique groove corresponding to the clamping rod 22, and the guide frame 21 is slidably connected to the corresponding clamping rod 22 through the oblique groove.

[0044] After directly rotating the rotating rod 4 or the connecting rod 5 to adjust the support angle, in order to prevent the operator from forgetting the operation steps of pushing up the piston frame 13, resulting in the pipe of the ventilator passing directly through the adjacent elastic clips 2, the elastic clip 2 is limited in advance by the clamping rod 22, so that before pushing the piston frame 13, the pipe cannot pass through the elastic clip 2. In the process of pushing up the piston frame 13, the piston frame 13 will contact the guide frame 21 and push the guide frame 21 to move upward. The guide frame 21 then pulls the clamping rod 22 through the inclined groove to slide to the side away from the elastic clip 2, thereby releasing the limit on the elastic clip 2. In this way, only after completing the operation of pushing up the piston frame 13, the operation of emergency preaching the pipe can be started, thereby ensuring the accuracy of the operation sequence and thus ensuring the stability of the pipe support.

[0045] Embodiment 4: Based on embodiment 3, Fig.11As shown, it also includes two second fixing frames 23, which are arranged in a horizontal U-shape. The second fixing frames 23 are fixedly connected to the cavity of the support rod 3, and the second fixing frames 23 are slidably connected with a clamping plate 24 along the left-right direction. The clamping plate 24 has an inclined groove, and the opposite end surfaces of the two clamping plates 24 are arranged as wedge-shaped surfaces. The piston frame 13 moves upward and contacts with the wedge-shaped surface of the clamping plate 24. The rear side of the support rod 3 is slidably connected with a guide pull frame 25 along the front-back direction. The clamping plate 24 is slidably connected to the guide pull frame 25 through the inclined groove. A second spring 26 is fixedly connected between the guide pull frame 25 and the support rod 3, and a third spring 27 is fixedly connected between the piston frame 13 and the support rod 3.

[0046] During the upward movement of the piston frame 13, it will contact the wedge-shaped surface of the card plate 24, and squeeze the card plate 24 to slide to the side away from each other through the wedge-shaped surface. The card plate 24 squeezes the guide pull frame 25 to slide backward through the inclined groove, and the second spring 26 is compressed. When the piston frame 13 passes over the wedge-shaped surface of the card plate 24 upward, the second spring 26 is reset to drive the guide pull frame 25 to slide forward. The guide pull frame 25 squeezes the card plate 24 to slide to the side close to each other through the inclined groove, thereby locking the piston frame 13 above the card plate 24. In this way, there is no need to manually push up the piston frame 13 all the time. When it is necessary to release the lock of the card plate 24 on the piston frame 13, just pull the guide pull frame 25 backward.

[0047] When the piston frame 13 is pushed upward and locked above the clamping plate 24, the third spring 27 is compressed. When the guide pull frame 25 is pulled back to release the clamping plate 24 from locking the piston frame 13, the third spring 27 is reset to drive the piston frame 13 to automatically slide downward and reset. In this way, there is no need to manually push the piston frame 13 down.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A critical care ventilator pipe support fixing device, characterized in that: The invention comprises a mounting seat (1), the mounting seat (1) being fixedly connected to elastic clips (2) symmetrically distributed along the mounting seat (1), the mounting seat (1) being fixedly connected to a support rod (3), the support rod (3) being rotatably connected to a rotating rod (4), the rotating rod (4) being rotatably connected to at least two connecting rods (5) distributed in series, the rotating rod (4) and each of the connecting rods (5) being fixedly connected to a clamping frame (6), the connecting rod (5) on the side away from the mounting seat (1) being plugged with a placement ring frame (7), and the connecting rod (5) on the side away from the mounting seat (1) being threadedly connected to a nut (8 ), used to fix the placement ring frame (7), the rotating rod (4) and each of the connecting rods (5) are rotatably connected to a gear (9), the support rod (3), the rotating rod (4) and the remaining connecting rods (5) except the connecting rod (5) connected to the nut (8) are fixedly connected to a first fixed frame (10) distributed in pairs, the first fixed frame (10) is slidably connected to a clamping block (11), the clamping block (11) is limitedly matched with an adjacent gear (9), and a first spring (12) is fixedly connected between the clamping block (11) and the adjacent first fixed frame (10).

2. A critical care ventilator pipe support fixing device according to claim 1, characterized in that: It also includes a piston frame (13), the piston frame (13) is slidably connected to the support rod (3), a cavity is opened inside the support rod (3) on a side close to the piston frame (13), the piston part of the piston frame (13) and the cavity of the support rod (3) form a cylinder structure, a sliding air pipe (14) is slidably connected between the support rod (3) and the rotating rod (4), the sliding air pipe (14) is communicated with the cavity of the piston frame (13), a first clamping frame (15) is fixedly connected to a side of the sliding air pipe (14) close to the adjacent support rod (3), the first clamping frame (15) moves upward to contact the adjacent clamping block (11), and is used to limit the adjacent clamping block (11), except for the connecting rod (5) connected with the nut (8) The remaining connecting rods (5) are all fixedly connected with fixed air pipes (19); the sliding air pipe (14) and the fixed air pipe (19) are slidably connected with a second bracket (16); the second bracket (16) moves to contact with the adjacent clamping block (11) for limiting the adjacent clamping block (11); the rotating rod (4) and the remaining connecting rods (5) except the connecting rod (5) connected with the nut (8) are all fixedly connected with fixed cylinders (18); the connecting rods (5) are all connected with the adjacent fixed cylinders (18); the second bracket (16) is connected with the adjacent fixed cylinders (18) through a hose (17); and the fixed cylinder (18) is connected with the adjacent fixed air pipe (19) through a channel of the adjacent connecting rod (5).

3. A critical care ventilator pipe support fixing device according to claim 2, characterized in that: It also includes a square chain (20), the square chain (20) is slidably connected to the connecting rod (5) near the side of the placement ring frame (7), the sections of the square chain (20) are connected via a hinge shaft, and the end of the square chain (20) near the side of the nut (8) is fixedly connected to the placement ring frame (7).

4. A critical care ventilator pipe support fixing device according to claim 3, characterized in that: The placement ring frame (7), the nut (8), the square chain (20) and the adjacent connecting rod (5) together form a telescopic rod clamping structure.

5. A critical care ventilator pipe support fixing device according to claim 4, characterized in that: The invention also comprises a guide frame (21), wherein the guide frame (21) is slidably connected to the support rod (3), the piston frame (13) moves upward to contact the guide frame (21), the mounting seat (1) is slidably connected to a clamping rod (22) corresponding to the elastic clip (2), the clamping rod (22) is used to limit the position of an adjacent clamping rod (22), the guide frame (21) is provided with an oblique groove corresponding to the clamping rod (22), and the guide frame (21) is slidably connected to the corresponding clamping rod (22) via the oblique groove.

6. A critical care ventilator pipe support fixing device according to claim 5, characterized in that: The invention also includes a second fixed frame (23) distributed in pairs, wherein the second fixed frame (23) is arranged in a horizontal U-shape, the second fixed frame (23) is fixedly connected to the cavity of the support rod (3), the second fixed frame (23) is slidably connected to a clamping plate (24), the piston frame (13) moves to contact the clamping plate (24), the support rod (3) is slidably connected to a guide pull frame (25) for pushing and pulling the clamping plate (24), and a second spring (26) is fixedly connected between the guide pull frame (25) and the support rod (3).

7. A critical care ventilator pipe support fixing device according to claim 6, characterized in that: The clamping plate (24) is provided with an oblique groove, and the clamping plate (24) is slidably connected to the guide pull frame (25) via the oblique groove.

8. A critical care ventilator pipe support fixing device according to claim 7, characterized in that: It also includes a third spring (27), wherein the third spring (27) is fixedly connected between the piston frame (13) and the support rod (3).

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