A pressure maintaining and locking structure for an armoring machine, a winding pressure roller mechanism and an armoring machine
By introducing a mechanical locking structure consisting of fasteners and protective sleeve components into the armoring machine, the reliability problem of hydraulic locking was solved, achieving a locking effect with low energy consumption and high reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HEFEI SMARTER TECH GROUP CORP
- Filing Date
- 2026-05-18
- Publication Date
- 2026-07-21
AI Technical Summary
In existing armoring machines, the locking function relies on the pressure-holding principle of the hydraulic circuit, which leads to reliability issues, such as high energy consumption of the hydraulic system, oil leakage, and temperature changes affecting the locking effect.
The mechanical locking structure, which uses fasteners and protective sleeves, achieves a locking state without the need for a hydraulic power unit to maintain pressure for a long time through threaded and pin connections. Combined with the groove structure and spring mechanism, it enables flexible adjustment and quick release of the locking state.
It effectively reduces the energy consumption of the hydraulic system, avoids locking failure caused by hydraulic pressure drop, and improves the reliability and ease of operation of the armoring machine's locking operation.
Smart Images
Figure CN122436330A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of armoring machine technology, and more specifically, to a pressure-holding and locking structure, a winding pressure roller mechanism, and an armoring machine for an armoring machine. Background Technology
[0002] In existing armoring machines, the locking function typically relies on the pressure-holding principle of the hydraulic circuit. While this purely hydraulic locking method can achieve basic clamping operations, it presents significant reliability risks in practical applications. Because the locking force is entirely supported by the pressure of the hydraulic oil, the hydraulic cylinder must remain in a tightened state for an extended period. This not only leads to high energy consumption in the hydraulic system but also makes it susceptible to pressure drops due to oil leakage or temperature changes, thus affecting the locking effect. Summary of the Invention
[0003] The present invention aims to solve the reliability problem of the pressure roller mechanism in existing armoring machines, which can only maintain the locking function by the pressure holding principle of the hydraulic circuit.
[0004] To address the aforementioned problems, in a first aspect, the present invention provides a pressure-holding and locking structure for an armored machine, comprising a housing, a hydraulic power unit disposed at one end of the housing, a first rod slidably disposed within the housing, the hydraulic power unit being connected to the first rod for driving the first rod to move axially along the housing, a protective sleeve assembly being externally threaded to the other end of the first rod, a flared opening being formed at the end of the housing away from the hydraulic power unit for partially embedding the protective sleeve assembly, and a plurality of fasteners being circumferentially distributed along the outer edge of the end of the housing near the flared opening, the fasteners being threadedly connected to the housing, the long axis of the fasteners extending radially along the housing, and one end of the fasteners being able to abut against the outer wall of the protective sleeve assembly.
[0005] The present invention provides a pressure-holding and locking structure for armored machines, which, compared with the prior art, has the following beneficial effects, but is not limited to: By engaging the fasteners with the protective sleeve assembly, a mechanical locking structure can be formed. This eliminates the need for the hydraulic power unit to maintain pressure for an extended period, effectively reducing the energy consumption of the hydraulic system. It also avoids locking failures caused by oil leakage or temperature changes leading to a drop in hydraulic pressure, significantly improving the reliability of the armoring machine's locking operation.
[0006] Furthermore, the fastener is a bolt.
[0007] Furthermore, the protective sleeve assembly includes an inner ring and an outer ring. The inner ring is threaded to the outside of the first rod body, and the outer ring is slidable relative to the outside of the inner ring. A connecting structure is provided between the inner ring and the outer ring, which allows the outer ring to be detachably connected to the inner ring. A groove structure is formed on the outer ring, which is used to change the distance between the outer wall surface of the outer ring and the corresponding fastener when the outer ring rotates relative to the inner ring.
[0008] Furthermore, the connection structure includes a pin and an insertion hole, the insertion hole being opened at corresponding positions on the inner ring and the outer ring, and the cross-section of the pin matching the cross-section of the insertion hole.
[0009] Furthermore, the connection structure includes an insertion groove, which is opened at corresponding positions on the inner ring and the outer ring. An insert is slidably disposed in the insertion groove, and a retaining ring is formed in the insertion groove on the outer ring. The insert has a wide section and a narrow section, which are integrally formed. The wide section corresponds to and matches the inner cross-section of the insertion groove, and the narrow section corresponds to and matches the inner cross-section of the retaining ring. A spring is disposed between the retaining ring and the wide section.
[0010] Furthermore, the force of the spring restoring its elastic deformation is used to move the insert closer to the axis of the inner ring.
[0011] Furthermore, the groove structure includes a first groove formed around the outer wall of the outer ring, so that the outer diameter of the corresponding part of the outer ring gradually decreases from top to bottom. The groove structure also includes a second groove formed on one side of the outer circumferential surface of the outer ring, so that the outer diameter of the corresponding part of the outer ring continuously decreases along the circumferential direction.
[0012] Furthermore, the insert has a notch at one end facing away from the inner ring axis, and the notch has an L-shaped cross-section.
[0013] Secondly, the present invention provides a winding pressure roller mechanism, including the pressure holding and locking structure for armoring machines as described above, wherein one end of the first rod in the pressure holding and locking structure for armoring machines is fixed with a pressure roller unit.
[0014] Thirdly, the present invention provides an armoring machine, including the winding pressure roller mechanism as described above, and also including a turntable assembly, wherein the winding pressure roller mechanism is disposed on the turntable assembly and is distributed in a plurality of such rollers along the circumference of the turntable assembly. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of the armoring machine of the present invention; Figure 2 This is an enlarged cross-sectional view of the winding pressure roller mechanism in this invention; Figure 3This is an enlarged three-dimensional structural diagram of the winding pressure roller mechanism in this invention; Figure 4 This is a schematic diagram showing the overall enlarged disassembly of the winding pressure roller mechanism in this invention; Figure 5 This is a three-dimensional enlarged structural diagram of the protective sleeve assembly in this invention; Figure 6 This is a magnified view of the protective sleeve assembly from one angle in this invention. Figure 7 This is a magnified view of the protective sleeve assembly from one angle in this invention. Figure 8 This is a three-dimensional sectional enlarged structural diagram of the protective sleeve assembly in this invention.
[0016] Explanation of reference numerals in the attached figures: 1. Housing; 11. Flared opening; 2. Hydraulic power unit; 3. First rod; 4. Protective sleeve assembly; 41. Inner ring; 42. Outer ring; 43. Connecting structure; 431. Insertion groove; 432. Insert; 433. Retaining ring; 434. Wide section; 435. Narrow section; 436. Notch; 437. Spring; 44. Groove structure; 441. First groove; 442. Second groove; 5. Fastener; 6. Pressure roller unit; 7. Turntable assembly. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. It should be understood that the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments described in this application without creative effort will fall within the scope of protection of this application.
[0018] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the specification of this application is for the purpose of describing specific embodiments only and is not intended to limit this application; the terms "comprising," "including," "having," "containing," etc., in the specification, claims, and accompanying drawings of this application are open-ended terms. Therefore, "comprising," "including," or "having" refers to, for example, a method or apparatus having one or more steps or elements, but is not limited to having only these one or more elements. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.
[0019] In the description of this invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and 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. Therefore, they should not be construed as limitations on this invention.
[0020] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0021] It should be emphasized that when the term "comprising / including" is used in this specification, it is used to explicitly indicate the presence of the stated feature, integer, step, or component, but does not exclude the presence or addition of one or more other features, integers, steps, components, or groups of features, integers, steps, or components.
[0022] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.
[0023] See Figures 2-5 An embodiment of the present invention provides a pressure-holding and locking structure for an armoring machine, comprising a housing 1, a hydraulic power unit 2 disposed at one end of the housing 1, a first rod 3 slidably disposed inside the housing 1, the hydraulic power unit 2 being connected to the first rod 3 for driving the first rod 3 to move axially along the housing 1, a protective sleeve assembly 4 being externally threaded to the other end of the first rod 3, a flared opening 11 being formed at the end of the housing 1 away from the hydraulic power unit 2 for partially embedding the protective sleeve assembly 4, a plurality of fasteners 5 being distributed circumferentially along the outer edge of the end of the housing 1 near the flared opening 11, the fasteners 5 being threadedly connected to the housing 1, the long axis of the fasteners 5 extending radially along the housing 1, and one end of the fasteners 5 being able to abut against the outer wall of the protective sleeve assembly 4.
[0024] In this embodiment, the housing 1 can be a cylindrical structure, used to provide radial restraint for the first rod 3 inside.
[0025] The hydraulic power unit 2 can be a conventional hydraulic drive component such as a hydraulic jack or a hydraulic cylinder. It can be fixed to the end of the housing 1 by means of flange connection, welding, etc. The power output end of the hydraulic power unit 2 can be coaxially fixedly connected to one end of the first rod 3, so as to drive the first rod 3 to reciprocate linearly along the axial direction of the housing 1.
[0026] The first rod 3 can adopt a rod-shaped structure that combines an optical axis and a threaded section. Its optical axis section can slide and engage with the inner wall of the housing 1, thereby ensuring the straightness of the first rod 3 during movement. Its threaded section can be used to achieve a detachable fixed connection with the protective sleeve assembly 4, which facilitates the disassembly, maintenance and replacement of the protective sleeve assembly 4.
[0027] The flare 11 can be formed at the end of the housing 1, so that the protective sleeve assembly 4 can be located in the gap between the housing 1 and the first rod 3. This allows the end of the fastener 5 to abut against the outer wall of the protective sleeve assembly 4, rather than directly against the outer wall of the first rod 3, thereby protecting the outer wall of the first rod 3 and preventing the fastener 5 from directly pressing against the surface of the first rod 3 and causing scratches or deformation.
[0028] Several fasteners 5 can be evenly distributed along the circumference of the housing 1, so that the tightening force of the fasteners 5 on the protective sleeve assembly 4 can be evenly distributed along the circumference, ensuring the stability of the locking. The threaded fit between the fasteners 5 and the housing 1 can be adjusted by rotating the fasteners 5 to adjust their length inside the housing 1, so that the tightening force on the protective sleeve assembly 4 can be flexibly adjusted, and the locking force can be controlled and adjusted.
[0029] By engaging the fastener 5 with the protective sleeve assembly 4, a mechanical locking structure can be formed. This eliminates the need for the hydraulic power unit 2 to maintain the locking state of the first rod 3 for an extended period, effectively reducing the energy consumption of the hydraulic system. It also avoids locking failure caused by oil leakage or temperature changes leading to a drop in hydraulic pressure, significantly improving the reliability of the armoring machine's locking operation.
[0030] Understandably, the hydraulic power unit 2 can be equipped with sensors to detect the stroke of the hydraulic power unit 2 in order to determine when a mechanical locking action is required.
[0031] See Figures 2-4 Optionally, fastener 5 is a bolt.
[0032] In this embodiment, the bolts can be standard parts such as internal hex bolts or external hex bolts, which can reduce the procurement and manufacturing costs of the parts.
[0033] Optionally, the protective sleeve assembly 4 includes an inner ring 41 and an outer ring 42. The inner ring 41 is threaded to the outside of the first rod body 3, and the outer ring 42 can slide relative to the outside of the inner ring 41. A connecting structure 43 is provided between the inner ring 41 and the outer ring 42. The connecting structure 43 allows the outer ring 42 to be detachably connected to the inner ring 41. A groove structure 44 is formed on the outer ring 42. The groove structure 44 is used to change the distance between the outer wall surface of the outer ring 42 and the corresponding fastener 5 when the outer ring 42 rotates relative to the inner ring 41.
[0034] In this embodiment, the inner ring 41 can be a ring-shaped component with internal threads, and its internal threads can match the external threads at the end of the first rod 3, so as to achieve coaxial fixation between the inner ring 41 and the first rod 3, and enable the inner ring 41 to move synchronously with the first rod 3.
[0035] The outer ring 42 can be fitted onto the outside of the inner ring 41, and its inner wall can slide and engage with the outer wall of the inner ring 41. This allows the outer ring 42 to slide axially and rotate circumferentially relative to the inner ring 41, facilitating the adjustment and disassembly of the outer ring 42.
[0036] The connecting structure 43 can realize the detachable fixation between the inner ring 41 and the outer ring 42. When the outer ring 42 and the inner ring 41 are fixed by the connecting structure 43, the friction force formed by the fastener 5 and the outer wall of the outer ring 42 can be synchronously transmitted to the first rod 3 through the inner ring 41, thereby realizing the mechanical locking of the first rod 3.
[0037] When the connecting structure 43 releases the fixation of the inner ring 41 and the outer ring 42, the outer ring 42 can slide or rotate freely relative to the inner ring 41, thereby adjusting the relative position between the outer ring 42 and the fastener 5 and realizing the quick release of the locked state.
[0038] The groove structure 44 can change the outer diameter of the outer ring 42 at different positions, thereby changing the distance between the outer wall of the outer ring 42 and the end of the fastener 5 when the outer ring 42 rotates relative to the inner ring 41. This can achieve stable tightening and locking of the fastener 5 against the outer ring 42, or quickly increase the distance by rotating the outer ring 42, so that the fastener 5 and the outer ring 42 are disengaged from the contact state, and the locking state is quickly released, thereby improving the convenience of locking and unlocking operations.
[0039] Optionally, the connection structure 43 includes a pin and an insertion hole, with the insertion hole located at corresponding positions on the inner ring 41 and the outer ring 42, and the cross-section of the pin matching the cross-section of the insertion hole.
[0040] In this embodiment, the insertion hole can be opened radially corresponding to the inner ring 41 and the outer ring 42. When the insertion holes of the inner ring 41 and the outer ring 42 are coaxially aligned, the pin can be inserted into the insertion hole, thereby restricting the relative circumferential rotation and axial sliding between the inner ring 41 and the outer ring 42, and fixing the two.
[0041] The pin can be made of standard components such as flexible cylindrical pin, cotter pin or flat pin, which can reduce manufacturing costs and enable convenient insertion and removal operations, facilitating the quick fixing and separation of the inner ring 41 and the outer ring 42.
[0042] The cross-section of the pin can be in various shapes such as circular, square or polygonal, so as to adapt to different usage scenarios. When a non-circular cross-section pin is used, the limiting effect of circumferential rotation of the inner ring 41 and the outer ring 42 can be further improved, avoiding the problem of circumferential slippage.
[0043] See Figure 8Optionally, the connecting structure 43 includes an insertion groove 431, which is opened at corresponding positions on the inner ring 41 and the outer ring 42. An insert 432 is slidably disposed in the insertion groove 431. A retaining ring 433 is formed in the insertion groove 431 on the outer ring 42. The insert 432 has a wide section 434 and a narrow section 435, which are integrally formed. The wide section 434 corresponds to and matches the inner cross section of the insertion groove 431, and the narrow section 435 corresponds to and matches the inner cross section of the retaining ring 433. A spring 437 is disposed between the retaining ring 433 and the wide section 434.
[0044] In this embodiment, the insertion groove 431 can be opened through the inner ring 41 and the outer ring 42 radially, thereby providing sliding guide space for the insert 432.
[0045] The retaining ring 433 can be integrally formed with the outer ring 42, or it can be fixed to the outer end of the insertion groove 431 of the outer ring 42 by means of interference fit, welding, etc., so as to form the end positioning structure of the spring 437. At the same time, it can cooperate with the wide section 434 of the insert 432 to limit the movement of the insert 432 away from the axis of the inner ring 41, and prevent the insert 432 from detaching from the insertion groove 431.
[0046] The outer diameter of the wide section 434 of the insert 432 can be larger than the outer diameter of the narrow section 435. The outer wall of the wide section 434 can slide and fit with the inner wall of the insertion groove 431. The narrow section 435 can extend outward through the inner hole of the retaining ring 433, so that the user can operate the insert 432 from the outside.
[0047] Spring 437 can be sleeved on the outside of narrow section 435, with one end abutting against the inner end face of retaining ring 433 and the other end abutting against the corresponding side end face of wide section 434. This can provide continuous elastic force to insert 432, enabling automatic reset of insert 432 and improving the convenience of operation.
[0048] Optionally, the force of the spring 437 restoring its elastic deformation is used to move the insert 432 toward the axis of the inner ring 41.
[0049] In this embodiment, when the insertion slots 431 of the inner ring 41 and the outer ring 42 are coaxially aligned, the elastic force of the spring 437 restoring its elastic deformation can push the insert 432 to move closer to the axis of the inner ring 41, so that the wide section 434 of the insert 432 is simultaneously embedded in the insertion slots 431 of the inner ring 41 and the outer ring 42. In this way, the relative fixation of the inner ring 41 and the outer ring 42 can be automatically achieved without additional locking operation.
[0050] When it is necessary to release the fixation between the inner ring 41 and the outer ring 42, the user can pull the insert 432 away from the axis of the inner ring 41, so that the wide section 434 of the insert 432 is dislodged from the insertion groove 431 of the inner ring 41 and remains only in the insertion groove 431 of the outer ring 42. This releases the restriction on the inner ring 41 and the outer ring 42. The operation is simple and convenient. At the same time, the spring 437 is compressed during this process, storing elastic potential energy, which facilitates subsequent automatic reset and fixation.
[0051] See Figures 5-7 Optionally, the groove structure 44 includes a first groove 441, which is formed around the outer wall of the outer ring 42 so that the outer diameter of the corresponding part of the outer ring 42 gradually decreases from top to bottom. The groove structure 44 also includes a second groove 442, which is formed on one side of the outer peripheral surface of the outer ring 42 so that the outer diameter of the corresponding part of the outer ring 42 continuously decreases along the circumferential direction.
[0052] In this embodiment, the first groove 441 can be a conical annular groove structure extending axially along the outer ring 42. The outer diameter of the portion of the outer ring 42 corresponding to the first groove 441 gradually decreases from top to bottom. Thus, when the protective sleeve assembly 4 is embedded in the flared opening 11 of the housing 1, the fastener 5 can be pressed against the outer wall surface of the outer ring 42 corresponding to the first groove 441. Even when the outer ring 42 is separated from the inner ring 41, due to the structure of the outer diameter of the first groove 441 being larger at the top and smaller at the bottom, the outer ring 42 is unlikely to detach from the flared opening 11 and the fastener 5 in a straight downward direction. This can ensure the axial positioning stability of the outer ring 42 and avoid the problem of the outer ring 42 accidentally falling off.
[0053] The second groove 442 can be a gradually decreasing groove structure extending circumferentially along the outer ring 42. This allows the outer diameter of the portion of the outer ring 42 corresponding to the second groove 442 to continuously decrease in one circumferential direction. Thus, when it is necessary to release the mechanical locking state of the locking structure, the connection between the outer ring 42 and the inner ring 41 can be released first through the connecting structure 43. Then, the outer ring 42 can be rotated so that the gap between the end of the fastener 5 and the outer wall of the outer ring 42 gradually increases as the outer diameter of the second groove 442 gradually increases. This allows the outer ring 42 to be moved quickly, disengaging it from the inner ring 41 and the fastener 5, thereby achieving rapid release of the locking state of the structure.
[0054] In actual locking operations, it is only necessary to rotate the outer ring 42 so that the end of the fastener 5 is pressed against the position of the outer ring 42 corresponding to the larger outer diameter of the second groove 442, which can achieve stable top locking. Fasteners 5 that do not correspond to the second groove 442 do not need to be pressed against the second groove 442. This simplifies the locking and unlocking operation steps and improves work efficiency.
[0055] See Figure 8Optionally, the insert 432 has a notch 436 at the end facing away from the axis of the inner ring 41, and the notch 436 has an L-shaped cross section.
[0056] In this embodiment, the notch 436 can be formed at the outer end of the narrow section 435 of the insert 432. The L-shaped notch 436 can form a pull position that is convenient for the user to apply force. The user can use tools such as hooks or wrenches, or directly hook the notch 436 with their fingers, and pull the insert 432 away from the axis of the inner ring 41. In this way, the connection structure 43 can be conveniently released from fixing the inner ring 41 and the outer ring 42 without the need for additional special tools, which improves the convenience of on-site operation.
[0057] The L-shaped notch 436 can prevent slippage during pulling and ensure the stability of the applied force. The edges of the notch 436 can be rounded to prevent scratches to the user or the tool.
[0058] See Figures 1-4 A winding pressure roller mechanism includes a pressure-holding and locking structure for an armoring machine, wherein one end of the first rod 3 in the pressure-holding and locking structure for an armoring machine is fixed with a pressure roller unit 6.
[0059] In this embodiment, the pressure roller unit 6 may include a pressure roller bracket and a pressure roller body. The pressure roller bracket may be fixed to the end of the first rod 3 by welding, bolt connection or other means. The pressure roller body may be rotatably connected to the pressure roller bracket by a pin. Thus, the pressure roller unit 6 may be moved closer to or away from the cable core of the armoring machine by the axial movement of the first rod 3, so as to realize the pressing and winding operation of the cable core.
[0060] The pressure-holding and locking structure of the armoring machine can mechanically lock the position of the pressure roller unit 6 without the need for a hydraulic system to maintain pressure for a long time. This ensures that the pressure roller unit 6 has a stable clamping force on the cable core, avoids loosening of the pressure roller due to hydraulic pressure fluctuations, and ensures the winding quality of the armor layer.
[0061] See Figure 1 An armor-armoring machine includes a winding pressure roller mechanism and a turntable assembly 7. The winding pressure roller mechanism is disposed on the turntable assembly 7 and is distributed in several parts along the circumference of the turntable assembly 7.
[0062] In this embodiment, the turntable assembly 7 may include a turntable body and a drive motor. The drive motor can drive the turntable body to rotate around its axis. The winding pressure roller mechanism can be fixed to the turntable body by means of bolt connection, welding or other methods. Several winding pressure roller mechanisms can be evenly distributed along the circumference of the turntable body, so that when the turntable body rotates, it can drive multiple winding pressure roller mechanisms to rotate synchronously, so as to evenly wind the armor tape around the outer circumference of the cable core and complete the armoring operation.
[0063] By setting a pressure-holding and locking structure for armoring machines on each winding pressure roller mechanism, the position of each pressure roller unit 6 can be independently adjusted for locking, adapting to different specifications of cable cores and armor layers of different thicknesses. At the same time, it can ensure that the locking force of each pressure roller unit 6 is stable and consistent, improving the overall quality and consistency of armoring operations.
[0064] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.
Claims
1. A pressure-holding and locking structure for an armor-mounting machine, characterized in that, The device includes a housing (1), one end of which is provided with a hydraulic power unit (2). A first rod (3) is slidably disposed inside the housing (1). The hydraulic power unit (2) is connected to the first rod (3) and is used to drive the first rod (3) to move along the axial direction of the housing (1). The other end of the first rod (3) is externally threaded to a protective sleeve assembly (4). A flared opening (11) is formed at the end of the housing (1) away from the hydraulic power unit (2) to allow the protective sleeve assembly (4) to be partially embedded. Several fasteners (5) are distributed circumferentially along the outer edge of the end of the housing (1) near the flared opening (11). The fasteners (5) are threadedly connected to the housing (1). The long axis of the fasteners (5) extends radially along the housing (1). One end of the fasteners (5) can abut against the outer wall of the protective sleeve assembly (4).
2. The pressure-holding and locking structure for armoring machines according to claim 1, characterized in that, The fastener (5) is a bolt.
3. The pressure-holding and locking structure for armoring machines according to claim 1, characterized in that, The protective sleeve assembly (4) includes an inner ring (41) and an outer ring (42). The inner ring (41) is threaded to the outside of the first rod body (3). The outer ring (42) can slide relative to the outside of the inner ring (41). A connecting structure (43) is provided between the inner ring (41) and the outer ring (42). The connecting structure (43) allows the outer ring (42) to be detachably connected to the inner ring (41). A groove structure (44) is formed on the outer ring (42). The groove structure (44) is used to change the distance between the outer wall surface of the outer ring (42) and the corresponding fastener (5) when the outer ring (42) rotates relative to the inner ring (41).
4. The pressure-holding and locking structure for armoring machines according to claim 3, characterized in that, The connection structure (43) includes a pin and an insertion hole, the insertion hole being opened at corresponding positions on the inner ring (41) and the outer ring (42), and the cross-section of the pin matching the cross-section of the insertion hole.
5. The pressure-holding and locking structure for armoring machines according to claim 3, characterized in that, The connection structure (43) includes an insertion groove (431), which is opened at corresponding positions on the inner ring (41) and the outer ring (42). An insert (432) is slidably disposed in the insertion groove (431), and a retaining ring (433) is formed in the insertion groove (431) on the outer ring (42). The insert (432) has a wide section (434) and a narrow section (435), which are integrally formed. The wide section (434) corresponds to and matches the inner cross section of the insertion groove (431), and the narrow section (435) corresponds to and matches the inner cross section of the retaining ring (433). A spring (437) is provided between the retaining ring (433) and the wide section (434).
6. The pressure-holding and locking structure for an armoring machine according to claim 5, characterized in that, The force of the spring (437) restoring its elastic deformation is used to move the insert (432) toward the axis of the inner ring (41).
7. The pressure-holding and locking structure for an armoring machine according to claim 3, characterized in that, The groove structure (44) includes a first groove (441), which is formed around the outer wall of the outer ring (42) so that the outer diameter of the corresponding part of the outer ring (42) gradually decreases from top to bottom. The groove structure (44) also includes a second groove (442), which is formed on one side of the outer circumferential surface of the outer ring (42) so that the outer diameter of the corresponding part of the outer ring (42) continuously decreases along the circumferential direction.
8. The pressure-holding and locking structure for an armoring machine according to claim 5, characterized in that, The insert (432) has a notch (436) at one end facing away from the axis of the inner ring (41), and the notch (436) has an L-shaped cross section.
9. A winding pressure roller mechanism, characterized in that, The armored machine pressure-holding locking structure includes any one of claims 1-8, wherein one end of the first rod (3) in the armored machine pressure-holding locking structure is fixed with a pressure roller unit (6).
10. An armored machine, characterized in that, The device includes the winding pressure roller mechanism as described in claim 9, and also includes a turntable assembly (7), wherein the winding pressure roller mechanism is disposed on the turntable assembly (7), and a plurality of them are distributed along the circumference of the turntable assembly (7).