Steel wire dynamic sealing device
By designing a wire moving sealing device including lever, slider and motor, the problem that existing devices cannot change the direction of the wire movement is solved, and flexible changes in the direction of the wire movement and improvement of the sealing performance are achieved, extending the service life of the wire and reducing the risk of leakage.
Patent Information
- Application Number
- CN202422172144.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-05
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-05
AI Technical Summary
The existing wire dynamic sealing device cannot change the reciprocating direction of the steel wire, resulting in insufficient sealing performance and service life of the steel wire.
A wire moving sealing device including a left-end wire sealing device, a right-end wire sealing device, a sealing shell, a lever, a slider and a motor is designed. By changing the steering direction of the motor, the direction of the wire movement is changed, and the traction and sealing effect of the wire is optimized through the guide arc design and roller structure.
It realizes flexible changes in the direction of the wire movement, reduces wear of the wire, extends service life, improves sealing performance, reduces leakage risks and friction noise, and is suitable for applications under high pressure, high temperature and complex operating conditions.
Smart Images
Figure CN223049392U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of box body sealing, and particularly relates to a wire dynamic sealing device. Background Technique
[0002] With the development of industrial technology and the change of working conditions, traditional sealing technologies often fail to meet the requirements when facing the sealing needs of high pressure, high temperature, strongly corrosive media, and fast-moving components. In industries such as hydraulic systems, pneumatic systems, petrochemicals, chemicals, and energy, the wire dynamic sealing method is adopted to meet the sealing requirements under high pressure, high temperature, and complex working conditions. In the sealed box body structure, there is a structure that requires a wire to pass through the box body to pull the working device inside the box body to work. To ensure that the high-pressure liquid outside the box body cannot enter the box body when the wire moves, and to protect the electrical appliances and devices inside the box body, dynamic sealing of the wire is required. However, the existing wire dynamic sealing devices cannot change the reciprocating movement direction of the wire. Content of the Utility Model
[0003] In view of this, the utility model aims to propose a wire dynamic sealing device to solve the problem that the existing wire dynamic sealing devices cannot change the reciprocating movement direction of the wire.
[0004] To achieve the above object, the utility model adopts the following technical solutions:
[0005] A wire dynamic sealing device includes a wire, a left-end wire sealing device, a right-end wire sealing device, a sealing housing, a lever, a slider, and a motor. The left-end wire sealing device and the right-end wire sealing device are symmetrically installed at the upper end of the sealing housing. The left-end wire head of the wire passes through the left-end wire sealing device, the right-end wire head of the wire passes through the right-end wire sealing device, and the middle part of the wire is located inside the lever. The lever is connected to the slider, and the forward rotation switch contact and the reverse rotation switch contact of the motor are respectively installed on both sides of the slider. The motor is installed inside the sealing housing and is connected to a battery.
[0006] Furthermore, the left-end wire sealing device and the right-end wire sealing device have the same structure, and both include a sealing outer sleeve, a sealing middle sleeve, a sealing inner sleeve, a sealing end cover, a wire guide frame, and a guiding mechanism. The sealing outer sleeve is connected to the sealing end cover. The sealing middle sleeve is installed inside the sealing outer sleeve. A sealing inner sleeve is installed between the sealing middle sleeve and the sealing end cover. The wire guide frame is connected to the sealing end cover, and the guiding mechanism is installed inside the wire guide frame.
[0007] Furthermore, a joint rubber ring is provided at the end of the sealing outer sleeve, a wire front rubber ring is provided between the end of the sealing middle sleeve and the sealing outer sleeve, and a sealing middle sleeve front rubber ring and a sealing middle sleeve rear rubber ring are respectively provided at the middle part and the tail part of the outer side of the sealing middle sleeve.
[0008] Furthermore, a sealing inner sleeve rubber ring is provided on the outer side of the sealing inner sleeve.
[0009] Furthermore, a retaining ring is provided at one end of the connecting part between the sealing inner sleeve and the outer side of the steel wire, and a steel wire rear rubber ring is provided at the other end.
[0010] Furthermore, the guiding mechanism includes an outer roller and an inner roller, and the outer roller and the inner roller are respectively in contact with the outer side and the inner side of the steel wire.
[0011] Furthermore, a plurality of the outer rollers and the inner rollers are provided, and the outer rollers and the inner rollers are arranged correspondingly.
[0012] Furthermore, the outer roller and the inner roller are respectively installed in the steel wire guiding frame through an outer fixing screw and an inner fixing screw.
[0013] Furthermore, an oil plug is provided on the sealing outer sleeve.
[0014] Furthermore, an oil plug rubber ring is provided on the outer side of the oil plug.
[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0016] 1. The utility model can change the guiding arc design of the roller according to the traction direction and angle requirements of the steel wire, realize the moving traction of the steel wire in different directions and angles, and can design a device for increasing and decreasing the diameter of the steel wire according to different traction forces of the steel wire. The sealing ability of the steel wire sealing device can reach 35 MPa, meeting the safe and reliable operation of the box body structure in an environment of 35 MPa and 150 °C.
[0017] 2. According to the angle requirements of the steel wire traction direction, an arc guiding design can be made for the guiding roller, so that the steel wire traction angle is derived through the roller arc structure, reducing the wear of the steel wire and extending the service life of the steel wire.
[0018] 3. The utility model lifts the right end of the steel wire head, and the lever pushes the slider to the right, the slider connects the motor forward switch contact, and the motor is started forward. The left end of the steel wire head is lifted, and the lever pushes the slider to the left. The slider disconnects the motor forward switch contact and the motor stops rotating. Then the slider connects the reverse switch contact and the motor is started reversely, thereby changing the direction of the reciprocating motion of the steel wire. The friction and wear of the steel wire in the sealing device can be made more uniform, which helps to extend the service life of the steel wire and reduce early failures caused by uneven wear, ensuring that the sealing device maintains stable sealing performance during operation. The uniform wear of the steel wire and the appropriate stress distribution help to effectively seal under high pressure or frequent movement conditions, reduce the risk of leakage, and reduce the friction noise and vibration generated by the sealing device during movement. This is particularly important for applications requiring low noise and smooth operation. For example, in high-precision equipment or occasions requiring low environmental interference, the stability of the sealing device under complex working conditions can be improved, including temperature changes, pressure fluctuations and other conditions. It can still maintain a stable working state and reduce the need for maintenance and adjustment. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:
[0020] Figure 1 The structure diagram of the left-end steel wire sealing device and the right-end steel wire sealing device described in the utility model is shown in FIG. Figure 1 ;
[0021] Figure 2 The structure diagram of the left-end steel wire sealing device and the right-end steel wire sealing device described in the utility model is shown in FIG. Figure 2 ;
[0022] Figure 3 The structure diagram of a steel wire dynamic sealing device described in the utility model is shown in FIG. Figure 1 ;
[0023] Figure 4 The structure diagram of a steel wire dynamic sealing device described in the utility model is shown in FIG. Figure 2 .
[0024] 1 - Steel wire, 2 - Connector rubber ring, 3 - Front rubber ring of steel wire, 4 - Front rubber ring of middle sealing sleeve, 5 - Sealing outer sleeve, 6 - Middle sealing sleeve, 7 - Rubber ring of oil plug, 8 - Oil plug, 9 - Rear rubber ring of middle sealing sleeve, 10 - Retaining ring, 11 - Inner sealing sleeve, 12 - Rubber ring of inner sealing sleeve, 13 - Rear rubber ring of steel wire, 14 - Sealing end cover, 15 - Steel wire guide frame, 16 - Outer roller, 17 - Inner roller, 18 - Inner fixing screw, 19 - Outer fixing screw, 20 - Left end of steel wire, 21 - Left end steel wire sealing device, 22 - Sealing housing, 23 - Lever, 24 - Slide block, 25 - Right end steel wire sealing device, 26 - Right end of steel wire, 27 - Forward rotation switch contact, 28 - Reverse rotation switch contact, 29 - Battery, 30 - Motor. Detailed implementation mode
[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. The described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.
[0026] See Figures 1-4 To illustrate this implementation mode, a dynamic steel wire sealing device includes a steel wire 1, a left end steel wire sealing device 21, a right end steel wire sealing device 25, a sealing housing 22, a lever 23, a slide block 24 and a motor 30. The left end steel wire sealing device 21 and the right end steel wire sealing device 25 are symmetrically installed at the upper end of the sealing housing 22. The left end of the steel wire 20 of the steel wire 1 passes through the left end steel wire sealing device 21. The right end of the steel wire 26 of the steel wire 1 passes through the right end steel wire sealing device 25. The middle part of the steel wire 1 is located in the lever 23. The lever 23 is connected to the slide block 24. The two sides of the slide block 24 are respectively installed with a forward rotation switch contact 27 and a reverse rotation switch contact 28 of the motor 30. The motor 30 is installed in the sealing housing 22. The motor 30 is connected to the battery 29.
[0027] The left end steel wire sealing device 21 and the right end steel wire sealing device 25 have the same structure, and both include a sealing outer sleeve 5, a middle sealing sleeve 6, an inner sealing sleeve 11, a sealing end cover 14, a steel wire guide frame 15 and a guiding mechanism. The sealing outer sleeve 5 is connected to the sealing end cover 14. The middle sealing sleeve 6 is installed in the sealing outer sleeve 5. An inner sealing sleeve 11 is installed between the middle sealing sleeve 6 and the sealing end cover 14. The steel wire guide frame 15 is connected to the sealing end cover 14. The guiding mechanism is installed in the steel wire guide frame 15.
[0028] A joint rubber ring 2 is provided at the end of the sealing outer sleeve 5. A steel wire front rubber ring 3 is provided between the end of the sealing middle sleeve 6 and the sealing outer sleeve 5. A sealing middle sleeve front rubber ring 4 and a sealing middle sleeve rear rubber ring 9 are respectively provided at the middle and the tail of the outer side of the sealing middle sleeve 6.
[0029] A sealing inner sleeve rubber ring 12 is provided on the outer side of the sealing inner sleeve 11.
[0030] A retaining ring 10 is provided at one end of the connecting part between the sealing inner sleeve 11 and the outer side of the steel wire 1, and a steel wire rear rubber ring 13 is provided at the other end.
[0031] The guiding mechanism includes an outer roller 16 and an inner roller 17, and the outer roller 16 and the inner roller 17 are respectively in contact with the outer side and the inner side of the steel wire 1.
[0032] A plurality of the outer rollers 16 and the inner rollers 17 are provided, and the outer rollers 16 and the inner rollers 17 are arranged correspondingly.
[0033] The outer roller 16 and the inner roller 17 are respectively installed in a steel wire guiding frame 15 through an outer fixing screw 19 and an inner fixing screw 18.
[0034] An oil plug 8 is provided on the sealing outer sleeve 5.
[0035] An oil plug rubber ring 7 is provided on the outer side of the oil plug 8.
[0036] After the steel wire 1 passes through the central holes of the sealing outer sleeve 5, the front rubber ring 3 of the steel wire, the sealing middle sleeve 6, the retaining ring 10, the rear sealing ring 13 of the steel wire, and the sealing end cover 14 and enters the steel wire guide frame 15, it bends 90° along the central track lines of the outer roller 16 and the inner roller 17. Then, according to the traction direction and angle requirements of the steel wire 1, the guiding arc of the roller can be designed to change, so as to realize the moving traction of the steel wire 1 in different directions and angles. According to the different traction forces of the steel wire, a device design for increasing and decreasing the diameter of the steel wire 1 can be carried out. The sealing ability of the steel wire sealing device can reach 35 MPa, meeting the requirements for the safe and reliable operation of the box structure in an environment of 35 MPa and 150 °C. It is led out from the lower end of the steel wire guide frame 15. The joint rubber ring 2 is sleeved in the outer groove at the front end joint of the sealing outer sleeve. The front rubber ring 3 of the steel wire is installed in the inner hole at the front end of the sealing middle sleeve 6. The front rubber ring 4 of the sealing middle sleeve is sleeved in the outer groove at the front end of the sealing middle sleeve 6. The front end joint of the sealing outer sleeve 5 is connected to the shell of the supporting container by flange bolts, and the rear end is connected to the sealing end cover 14 by threads. The sealing middle sleeve 6 is installed in the inner hole of the sealing outer sleeve 5. The oil plug rubber ring 7 is sleeved in the outer groove of the oil plug 8. The oil plug 8 is installed in the side hole of the sealing outer sleeve 5. The rear rubber ring 9 of the sealing middle sleeve is sleeved in the outer groove at the lower end of the sealing middle sleeve 6. The retaining ring 10 is installed in the front end hole of the sealing inner sleeve 11. The sealing inner sleeve 11 is installed in the lower end hole of the sealing middle sleeve 6. The sealing inner sleeve rubber ring 12 is sleeved in the outer groove of the sealing inner sleeve 11. The rear rubber ring 13 of the steel wire is installed in the lower end hole of the sealing inner sleeve 11. The sealing end cover 14 is threadedly connected to the lower end of the sealing outer sleeve 5 at the front end and threadedly connected to the upper end sleeve of the steel wire guide frame 15 at the lower end. The steel wire guide frame 15 is threadedly connected to the lower end of the sealing end cover 14 at the upper end. The outer roller 16 is installed in the groove between the two plates of the steel wire guide frame 15. The inner roller 17 is installed in the groove between the two plates of the steel wire guide frame 15. The inner fixing screw 18 is installed on the inner side of the arc groove of the steel wire guide frame 15. The outer fixing screw 19 is installed on the outer side of the outer roller 16.
[0037] Lift the right end of the wire 26. The lever 23 moves the slider 24 to the right. The slider 24 closes the forward rotation switch contact 27, starting the motor 30 to rotate forward. Lift the left end of the wire 20. The lever 23 moves the slider 24 to the left. After the slider 24 disconnects the forward rotation switch contact 27 of the motor, the motor 30 stops rotating. Then the slider 24 closes the reverse rotation switch contact 28, starting the motor 30 to rotate in reverse. Thus, the direction of the reciprocating motion of the wire 1 can be changed, making the friction and wear of the wire 1 in the sealing device more uniform. This helps to extend the service life of the wire 1, reduce early failure caused by uneven wear, ensure stable sealing performance of the sealing device during operation. The uniform wear and proper stress distribution of the wire 1 contribute to effective sealing under high-pressure or frequent movement conditions, reducing the leakage risk. It can reduce the frictional noise and vibration generated when the sealing device moves, which is particularly important for applications requiring low noise and smooth operation, such as in high-precision equipment or occasions with low environmental interference requirements. It can improve the stability of the sealing device under complex working conditions, including maintaining a stable working state under conditions such as temperature changes and pressure fluctuations, reducing the need for maintenance and adjustment.
[0038] The embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. According to the content of this specification, many modifications and changes can be made. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present utility model, so that those skilled in the relevant technical field can understand and utilize the present utility model well.
Claims
1. A steel wire dynamic sealing device, characterized in that: The invention comprises a steel wire (1), a left-end steel wire sealing device (21), a right-end steel wire sealing device (25), a sealed housing (22), a lever (23), a slider (24) and a motor (30). The left-end steel wire sealing device (21) and the right-end steel wire sealing device (25) are symmetrically mounted on the upper end of the sealed housing (22). The left end (20) of the steel wire (1) passes through the left-end steel wire sealing device (21), and the right end (26) of the steel wire (1) passes through the right-end steel wire sealing device (25). The middle part of the steel wire (1) is located in the lever (23). The lever (23) is connected to the slider (24). The forward switch contact (27) and the reverse switch contact (28) of the motor (30) are respectively mounted on both sides of the slider (24). The motor (30) is mounted in the sealed housing (22). The motor (30) is connected to a battery (29).
2. A steel wire dynamic seal device according to claim 1, characterized in that: The left-end steel wire sealing device (21) and the right-end steel wire sealing device (25) have the same structure, and both comprise a sealing outer sleeve (5), a sealing middle sleeve (6), a sealing inner sleeve (11), a sealing end cover (14), a steel wire guide frame (15) and a guide mechanism. The sealing outer sleeve (5) is connected to the sealing end cover (14), the sealing middle sleeve (6) is installed in the sealing outer sleeve (5), a sealing inner sleeve (11) is installed between the sealing middle sleeve (6) and the sealing end cover (14), the steel wire guide frame (15) is connected to the sealing end cover (14), and the guide mechanism is installed in the steel wire guide frame (15).
3. A steel wire dynamic seal device according to claim 2, characterized in that: The end of the sealing outer sleeve (5) is provided with a joint rubber ring (2), a steel wire front rubber ring (3) is provided between the end of the sealing middle sleeve (6) and the sealing outer sleeve (5), and a sealing middle sleeve front rubber ring (4) and a sealing middle sleeve rear rubber ring (9) are respectively provided at the middle and tail portions of the outer side of the sealing middle sleeve (6).
4. A steel wire dynamic seal device according to claim 2, characterized in that: A sealing inner sleeve rubber ring (12) is provided on the outer side of the sealing inner sleeve (11).
5. A steel wire dynamic seal device according to claim 2, characterized in that: A retaining ring (10) is provided at one end of the connection portion between the sealing inner sleeve (11) and the outer side of the steel wire (1), and a steel wire rear rubber ring (13) is provided at the other end.
6. A steel wire dynamic seal device according to claim 2, characterized in that: The guide mechanism comprises an outer roller (16) and an inner roller (17), and the outer roller (16) and the inner roller (17) are respectively in contact with the outer side and the inner side of the steel wire (1).
7. A steel wire dynamic seal device according to claim 6, characterized in that: A plurality of the outer rollers (16) and the inner rollers (17) are provided, and the outer rollers (16) and the inner rollers (17) are arranged correspondingly.
8. A steel wire dynamic seal device according to claim 7, characterized in that: The outer roller (16) and the inner roller (17) are respectively installed in the wire guide frame (15) via an outer fixing screw (19) and an inner fixing screw (18).
9. A steel wire dynamic seal device according to claim 2, characterized in that: The sealing sleeve (5) is provided with an oil plug (8).
10. A steel wire dynamic seal device according to claim 9, characterized in that: An oil plugging rubber ring (7) is provided on the outer side of the oil plug (8).