Mechanical manual expansion shaft of batten
By designing a slatted mechanical manual expansion shaft, driven by manual or electric motor, the problem of requiring a high-pressure air source for existing pneumatic shaft expansion is solved, achieving high applicability and flexibility without pneumatic drive.
Patent Information
- Application Number
- CN202422868028.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-11-25
AI Technical Summary
Existing mechanical pneumatic shaft expansion devices require a high-pressure air source, which limits their applicability.
A slat mechanical manual expansion shaft was designed, which is driven manually or by an electric motor. The drive shaft is rotated by a knob, and the radial movement of the expansion block is achieved by the drive thread and the return spring. Combined with a flexible positioning plate to adapt to different inner walls, it achieves air pressure-free drive.
This improves the applicability of the device, enabling it to operate normally under pressureless conditions, and enhances its adaptability and flexibility.
Smart Images
Figure CN223534626U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of manual shaft expansion technology, specifically relating to a slat mechanical manual shaft expansion method. Background Technology
[0002] Patent application number 2011103708704 discloses a mechanical pneumatic shaft expansion shaft for papermaking and printing packaging winding and unwinding systems. The shaft includes a mandrel, one end of which has a boss inserted into a circular groove of a flange. A shaft tube is fitted over the flange's cylindrical body. A thrust piston is fitted inside the flange's cylindrical body, and a sealing cap is fitted onto the thrust piston and bolted to the flange's cylindrical body end. A guide band is also provided at the contact point between the thrust piston and the inner wall of the flange's cylindrical body. Several patterned discs are sequentially fitted onto the mandrel via oil-lubricated copper sleeves. Spacers are fitted onto the mandrel between the patterned discs. A spring is fitted onto the mandrel at the tail end of the patterned disc. The other end of the mandrel has a boss fitted into the inner circular groove of a head. The outer ring of the head is fitted into the other end of the shaft tube and connected by screws. This device has a compact structure, a large working stroke, high load-bearing capacity, and high precision. However, the requirement for a high-pressure air source limits its applicability. Utility Model Content
[0003] This invention provides a slat mechanical manual expansion shaft that does not require pneumatic drive and can be driven manually or by an electric motor, greatly improving the applicability of the device and solving the problems mentioned in the background art.
[0004] To achieve the above objectives, the specific technical solution of this utility model is as follows:
[0005] A slat-mechanical manual expansion shaft includes an expansion housing with evenly distributed circumferentially arranged sliding grooves. A rotating flange is located at the right end of the expansion housing, and a bearing is rotatably connected within the rotating flange. A drive shaft collar is rotatably connected at the left end of the expansion housing. The bearing and drive shaft collar are coaxial. A drive shaft assembly is rotatably connected to the bearing and drive shaft collar. The drive shaft assembly includes a drive shaft, a return spring sleeved at the right end of the drive shaft, and a drive thread at the left end of the drive shaft. The drive thread is drively connected to the drive shaft collar. A sliding long shaft sleeve assembly is slidably connected to the drive shaft. Evenly arranged movable block assemblies are arranged on the sliding long shaft sleeve assembly. Circumferentially arranged expansion block assemblies are slidably connected to the movable block assemblies. The expansion block assemblies are slidably connected to the sliding grooves. A positioning plate assembly is connected to the expansion block assemblies, and the positioning plate assembly is parallel to the drive shaft assembly.
[0006] As a further feature of the above solution, a knob device is fixedly connected to one end of the drive shaft, and the sliding long shaft sleeve device includes a sliding long shaft sleeve that is slidably connected to the drive shaft. A limit collar is provided at the right end of the sliding long shaft sleeve, and a locking thread is provided at the left end, with a locking ring screwed onto the locking thread.
[0007] As a further feature of the above scheme, an abutment collar is provided at the right end of the drive collar, and circumferentially distributed balls are rolled on the end face of the abutment collar.
[0008] As a further provision of the above scheme, the movable block device includes a movable block that is slidably connected to a sliding long shaft sleeve. The movable block is provided with circumferentially distributed inclined grooves that are inclined to the right and point towards the central axis of the drive shaft. The tensioning block device includes a tensioning block that is slidably engaged with the inclined groove. A spring post is provided on the upper end face of the tensioning block, and the spring post protrudes outward from the groove.
[0009] As a further feature of the above solution, the positioning plate device includes three linearly arranged positioning plates connected by elastic connecting columns. In its natural state, the three positioning plates are in a straight line. When subjected to force, the positioning plates can automatically adjust their posture to adapt to various inner walls, thereby improving the applicability of the device. The positioning plates have connecting holes, and the positioning plates are fixed to the spring columns through the connecting holes.
[0010] As a further feature of the above scheme, positioning bushings are provided between each pair of movable block devices. When the locking ring is tightened, the locking ring abuts against the positioning bushings of the movable block devices to position and fix the distance between the movable block devices.
[0011] This utility model has the following beneficial effects:
[0012] The drive shaft is rotated by a knob, which in turn drives the drive shaft ring to move left and right via a drive thread. When the drive shaft ring moves to the right, it abuts against the movable block device. In conjunction with the sliding long shaft sleeve device and the drive shaft, the movable block device moves to the right. The movable block device drives the tensioning block device and the positioning plate device to move radially outward. At the same time, the sliding long shaft sleeve device abuts against the return spring, which compresses. When the drive shaft ring moves to the left, the return spring drives the movable block device to automatically return to the right. This device does not require pneumatic drive and can be driven manually or mechanically by an electric motor, greatly improving the applicability of the device. In addition, the positioning plate device, which can be flexibly adjusted, further improves the applicability of the device. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the AA-direction cross-section of this utility model;
[0014] Figure 2 This is a cross-sectional schematic diagram of the present invention;
[0015] Figure 3 This is a side view of the present invention;
[0016] Figure 4 This is a schematic diagram of the positioning clamping device of this utility model;
[0017] Figure 5 This is a cross-sectional schematic diagram of the positioning clamping device of this utility model;
[0018] Figure 6 This is a cross-sectional schematic diagram of the positioning clamping device of this utility model;
[0019] Figure 7 This is a cross-sectional schematic diagram of the positioning clamping device of this utility model.
[0020] 1. Expansion housing; 2. Rotary flange; 3. Bearing; 4. Drive shaft assembly; 5. Sliding long shaft sleeve assembly; 6. Drive shaft collar; 7. Movable block assembly; 8. Expansion block assembly; 9. Positioning plate assembly; 10. Knob assembly; 11. Positioning shaft sleeve; 12. Locking ring; 101. Slide groove; 401. Drive shaft; 402. Return spring; 403. Drive thread; 501. Sliding long shaft sleeve; 502. Limiting shaft collar; 503. Locking thread; 601. Abutment shaft collar; 602. Ball bearing; 701. Movable block; 702. Inclined groove; 801. Expansion block; 802. Spring column; 901. Positioning plate; 902. Connecting hole; 903. Elastic connecting column. Detailed Implementation
[0021] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.
[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The following will refer to the appendix... Figures 1-7 This application will be described in detail with reference to the embodiments.
[0023] like Figure 1 , Figure 2 , Figure 3As shown, a slat mechanical manual expansion shaft is disclosed. The expansion housing 1 has evenly distributed circumferentially arranged sliding grooves 101. A rotating flange 2 is provided at the right end of the expansion housing 1, and a bearing 3 is rotatably connected inside the rotating flange 2. A drive shaft collar 6 is rotatably connected at the left end of the expansion housing 1. The bearing 3 and the drive shaft collar 6 are coaxial. A drive shaft device 4 is rotatably connected to the bearing 3 and the drive shaft collar 6. The drive shaft device 4 includes a drive shaft 401. A return spring 402 is sleeved on the right end of the drive shaft 401. A drive thread 403 is provided at the left end of the drive shaft 401, and the drive thread 403 is drively connected to the drive shaft collar 6. A sliding long shaft sleeve device 5 is slidably connected to the drive shaft 401. Evenly arranged movable block devices 7 are provided on the sliding long shaft sleeve device 5. Circumferentially arranged expansion block devices 8 are slidably connected to the movable block devices 7. The expansion block devices 8 are slidably connected to the sliding grooves 101. A positioning plate device 9 is connected to the expansion block device 8, and the positioning plate device 9 is parallel to the drive shaft device 4.
[0024] like Figure 4 , Figure 5 , Figure 6 As shown, a knob device 10 is fixedly connected to one end of the drive shaft 401. The sliding long shaft sleeve device 5 includes a sliding long shaft sleeve 501, which is slidably connected to the drive shaft 401. A limit collar 502 is provided at the right end of the sliding long shaft sleeve 501, and a locking thread 503 is provided at the left end. A locking ring 12 is screwed onto the locking thread 503. An abutment collar 601 is provided at the right end of the drive shaft collar 6. Circumferentially distributed balls 602 are rolled on the end face of the abutment collar 601, which can reduce the wear between the drive shaft collar 6 and the movable block device 7.
[0025] The movable block device 7 includes a movable block 701, which is slidably connected to the sliding long shaft sleeve 501. The movable block 701 is provided with a circumferentially distributed inclined groove 702, which points obliquely to the right towards the central axis of the drive shaft 401. The expansion block device 8 includes an expansion block 801, which is slidably engaged with the inclined groove 702. A spring post 802 is provided on the upper end face of the expansion block 801, which protrudes outward from the sliding groove 101. A positioning shaft sleeve 11 is provided between each pair of movable block devices 7. A locking ring 12 is tightened, and the locking ring 12 abuts against the movable block device 7 and the positioning shaft sleeve 11 to position and fix the distance between the movable block devices 7.
[0026] like Figure 7 As shown, the positioning plate device 9 includes three linearly arranged positioning plates 901, which are connected by elastic connecting columns 903. In its natural state, the three positioning plates 901 are in a straight line. When subjected to force, the positioning plates 901 can automatically adjust their posture to adapt to various inner walls, thus improving the applicability of the device. The positioning plates 901 have connecting holes 902, and the positioning plates 901 are fixed to the spring columns 802 through the connecting holes.
[0027] The working process of this utility model is as follows: The knob device 10 drives the drive shaft device 4 to rotate. The drive shaft device 4 drives the drive shaft ring 6 to move left and right through the drive thread 403. The drive shaft ring 6 moves to the right and abuts against the movable block device 7. In conjunction with the sliding long shaft sleeve device 5 and the drive shaft device 4, the movable block device 7 moves to the right. The movable block device 7 drives the expansion block device 8 and the positioning plate device 9 to move outward radially. Since the positioning plates 901 are connected by the elastic connecting column 903, the positioning plates 901 can automatically adjust their posture when subjected to force to adapt to the inner wall in various situations and improve the applicability of the device. At the same time, the sliding long shaft sleeve device 5 abuts against the return spring 402. The return spring 402 is compressed. When the drive shaft ring 6 moves to the left, the return spring 402 drives the movable block device 7 to automatically return to the right.
[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model.
[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A slat-mechanical manual expansion shaft, comprising an expansion housing, the expansion housing having evenly distributed circumferentially arranged sliding grooves, a rotating flange being provided at the right end of the expansion housing, and a bearing being rotatably connected within the rotating flange, characterized in that, A drive shaft collar is rotatably connected to the left end of the expansion housing. A drive shaft device is rotatably connected to the bearing and the drive shaft collar. The drive shaft device includes a drive shaft, a return spring is sleeved on the right end of the drive shaft, and a drive thread is provided on the left end of the drive shaft. The drive thread is connected to the drive shaft collar. A sliding long shaft sleeve device is slidably connected to the drive shaft. A movable block device is provided on the sliding long shaft sleeve device. A circumferentially arranged expansion block device is slidably connected to the movable block device. The expansion block device is slidably connected to the slide groove. A positioning plate device is connected to the expansion block device. The positioning plate device is parallel to the drive shaft device.
2. The manual expansion shaft of the slat mechanical type according to claim 1, characterized in that, A knob device is fixedly connected to one end of the drive shaft. The sliding long shaft sleeve device includes a sliding long shaft sleeve, which is slidably connected to the drive shaft. A limit collar is provided at the right end of the sliding long shaft sleeve, and a locking thread is provided at the left end. A locking ring is screwed onto the locking thread.
3. The manual expansion shaft of the slat mechanical type according to claim 1, characterized in that, The right end of the drive shaft collar is provided with an abutment collar, and circumferentially distributed balls are rolled on the end face of the abutment collar.
4. The manual expansion shaft of the slat mechanical type according to claim 2, characterized in that, The movable block device includes a movable block that is slidably connected to a sliding long shaft sleeve. The movable block is provided with circumferentially distributed inclined grooves that point obliquely to the right towards the central axis of the drive shaft. The tension block device includes a tension block that is slidably engaged with the inclined groove. A spring post is provided on the upper end face of the tension block, and the spring post protrudes outward from the groove.
5. The manual expansion shaft of the slat mechanical type according to claim 4, characterized in that, The positioning plate device includes three linearly arranged positioning plates connected by elastic connecting columns. The positioning plates have connecting holes and are fixed to the spring columns through the connecting holes.
6. The manual expansion shaft of the slat mechanical type according to claim 4, characterized in that, The movable block device is provided with positioning bushings between each pair.