Trundle device for special underwater operation equipment
By designing a special caster device for underwater work equipment and utilizing the rotation and lifting of the baffle assembly, the problem of high forward resistance of underwater work equipment was solved, achieving efficient and stable underwater movement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-30
- Publication Date
- 2026-03-13
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing industrial casters used for special underwater operations equipment have high forward resistance when used underwater and are easily affected by water flow, resulting in low efficiency.
A special underwater operation equipment caster device was designed, including a mounting base, caster body, transmission component and flow deflector assembly. Through the cooperation of a two-way screw and a push screw tube, the flow deflector assembly can be rotated and raised and lowered, reducing resistance to water flow and pushing away obstacles in front, and has elastic shock absorption function.
It effectively reduces the resistance of the casters in the water, clears the movement path, improves the efficiency of underwater movement of the equipment, and enhances stability through its elastic structure.
Smart Images
Figure CN121650368A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of industrial caster technology, and in particular to a caster device for special underwater work equipment. Background Technology
[0002] Casters are a general term that includes both swivel and fixed casters. Swivel casters, also known as universal wheels, have a structure that allows them to rotate 360 degrees; fixed casters do not have a rotating structure and cannot turn. The two types of casters are usually used together. For example, a handcart typically has two fixed wheels at the front and two swivel universal wheels at the rear, near the push handle.
[0003] Casters are mainly divided into medical casters, industrial casters, supermarket casters, and furniture casters. Among them, industrial casters are caster products used in factories or mechanical equipment. They can be made of high-grade imported reinforced nylon (PA6), super polyurethane, and rubber. The products as a whole have high impact resistance and strength.
[0004] Existing industrial casters used for special underwater operations equipment experience significant forward resistance and are easily interfered with by water currents when used underwater, making it difficult for them to move forward and resulting in low efficiency. Summary of the Invention
[0005] To address the shortcomings of existing technologies, this invention provides a caster device for special underwater operation equipment.
[0006] This invention solves the above-mentioned technical problems through the following technical means: a caster device for special underwater operation equipment, including a mounting base, two symmetrically distributed caster bodies at the bottom of the mounting base, a mounting groove formed inside the mounting base, a transmission component with transmission function housed inside the mounting groove, the transmission component including a bidirectional lead screw passing through the mounting groove, both ends of the bidirectional lead screw being provided with a push screw tube extending downward from the bottom of the mounting base, the bottom end of the push screw tube elastically rising and falling along the inside of the caster body; a baffle assembly is provided above the mounting base, the baffle assembly including a baffle body, both ends of the baffle body being hinged with baffle skirts, an adjustment component is provided between the bidirectional lead screw and the baffle assembly, the adjustment component including a push rod that can move along the outside of the bidirectional lead screw, pushing the baffle skirt to rotate around the hinge point with the baffle body.
[0007] Furthermore, a spring groove is provided on the top surface of the caster body, and a limit ring is detachably connected to the bottom end of the push screw. The bottom surface of the limit ring is fixedly connected to the inner bottom surface of the spring groove through a buffer spring, and the limit ring slides along the inner wall of the spring groove.
[0008] Furthermore, the spring groove has a lifting groove on the inner wall of the limiting ring, and the limiting ring is adapted to the lifting groove.
[0009] Furthermore, a snap-fit ring is fixed to the outer side of the bottom end of the push screw tube, and a snap-fit groove is opened on the surface of the limiting stop ring, and the snap-fit ring snaps into the snap-fit groove.
[0010] Furthermore, a connecting frame is provided between the baffle body and the mounting base, and the two ends of the connecting frame are fixedly connected to the mounting base and the baffle body, respectively.
[0011] Furthermore, both ends of the bidirectional lead screw are coaxially rotated with a first bevel gear, the bottom end of the first bevel gear meshes with a second bevel gear, and the bottom end of the second bevel gear is coaxially rotated with a push screw, the push screw being threaded into a push screw tube.
[0012] Furthermore, both ends of the bidirectional lead screw pass through the mounting base and extend to the outer surface of the mounting base, and both ends of the bidirectional lead screw are fixedly connected to handles.
[0013] Furthermore, the outer side of the driving solenoid has a ring array of limiting blocks, and the mounting base has a limiting groove on the outer side of the limiting blocks, with the limiting blocks and the limiting groove being adapted to each other.
[0014] Furthermore, the outer thread of the bidirectional lead screw is threaded with symmetrically distributed lead screw sleeves, the push rod can rotate above the lead screw sleeves, and a limit component is provided between the lead screw sleeves and the push rod to limit the angular range of the push rod's rotation.
[0015] Furthermore, the limiting component includes a hinged inclined rod fixed to the top surface of two lead screw sleeves near one end. The bottom end of the push rod at the top of the hinged inclined rod is hinged to each other. A limiting ring is provided above the lead screw sleeve, which can slide and rise along the side surface of the lead screw sleeve. A limiting protrusion is fixed to the surface of the push rod relative to the limiting ring, and the limiting ring slides along the inside of the limiting protrusion. A limiting housing is fixed to the side of the lead screw sleeve, and a limiting slide rod is fixed to the bottom surface of the limiting ring. The limiting slide rod slides along the inside of the limiting housing.
[0016] The beneficial effects of this invention are:
[0017] In this invention, when the bidirectional lead screw rotates, the push rod drives the baffle skirt to rotate around the hinge point. The projected area of the horizontal section of the baffle assembly gradually decreases, reducing the resistance between the baffle and the water flow. When the caster body moves in the water, the baffle assembly can reduce the resistance between the caster body and the water surface, and can also push away obstacles in front of the caster body, clearing the path for movement and reducing the difficulty for the caster body to move forward. Moreover, since the caster body is elastic, it can also play a shock absorption role when the caster body vibrates, improving the stability of the caster body. Attached Figure Description
[0018] Figure 1 This is a top view of the industrial caster of the present invention;
[0019] Figure 2 This is a cross-sectional view of the industrial caster of the present invention;
[0020] Figure 3 This is a cross-sectional view of the mounting base of the present invention;
[0021] Figure 4 For the present invention Figure 2 Enlarged schematic diagram of the structure at point A in the diagram;
[0022] Figure 5 This is a cross-sectional view of the industrial caster section of the present invention;
[0023] Figure 6 For the present invention Figure 5 Enlarged schematic diagram of the structure at point B in the diagram.
[0024] In the diagram: 11. Caster body; 111. Lifting slide; 12. Mounting slot; 13. Mounting base; 131. Limiting slide; 20. Baffle assembly; 21. Baffle body; 22. Baffle skirt; 23. Connecting frame; 30. Adjustment assembly; 31. Push rod; 32. Screw sleeve; 33. Limiting component; 331. Limiting housing; 332. Limiting slide rod; 333. Limiting ring; 334. Limiting protrusion; 335. Hinge diagonal rod; 40. Transmission assembly; 41. Two-way screw; 411. Handle; 42. First bevel gear; 43. Second bevel gear; 44. Push screw; 441. Limiting block; 51. Pushing screw tube; 52. Spring groove; 53. Buffer spring; 54. Snap-fit ring; 55. Limiting retaining ring; 551. Snap-fit groove. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0026] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.
[0027] Example
[0028] like Figure 1 , Figure 2 as well as Figure 3 As shown, this embodiment discloses a caster device for special underwater operation equipment, including a mounting base 13. Two symmetrically distributed caster bodies 11 are provided at the bottom of the mounting base 13. A mounting groove 12 is formed inside the mounting base 13. A transmission component 40 with transmission function is housed inside the mounting groove 12. The transmission component 40 includes a bidirectional lead screw 41 passing through the mounting groove 12. Both ends of the bidirectional lead screw 41 are provided with push screw tubes 51 that can extend downward from the bottom surface of the mounting base 13. The bottom end of the push screw tube 51 elastically rises and falls along the inside of the caster body 11. A baffle assembly 20 is provided above the mounting base 13. The baffle assembly 20 includes a baffle body 21. Both ends of the baffle body 21 are hinged with baffle skirts 22. An adjustment component 30 is provided between the bidirectional lead screw 41 and the baffle assembly 20. The adjustment component 30 includes a push rod 31 that can move along the outside of the bidirectional lead screw 41, pushing the baffle skirt 22 to rotate around the hinge point with the baffle body 21.
[0029] In use, when the caster body 11 and mounting base 13 are about to be submerged underwater, if the water is shallow, the double-acting screw 41 is rotated in the forward direction to drive the push screw tube 51 to rise. If the caster body 11 is not in contact with the ground, the push screw tube 51 drives the caster body 11 to rise, housing the caster body 11 inside the baffle assembly 20 until the bottom end of the baffle assembly 20 is roughly flush with the bottom end of the caster body 11. At this time, the baffle assembly 20 acts as a stop for the caster body 11. If the caster body 11 touches the ground, the push screw tube 51 is gradually retracted into the mounting base 13, the position of the mounting base 13 moves down, and the baffle assembly 20 covers and stops in front of the caster body 11. When the bidirectional lead screw 41 rotates, the push rod 31 drives the baffle skirt 22 to rotate around the hinge point. The projected area of the horizontal section of the baffle assembly 20 gradually decreases, reducing the resistance between the baffle and the water flow. When the caster body 11 moves in the water, the baffle assembly 20 can reduce the resistance between the caster body 11 and the water surface, and can also push away obstacles in front of the caster body 11, such as mud or stones, clearing a path for movement and reducing the difficulty for the caster body 11 to move forward. Moreover, because the caster body 11 is elastic, when the caster body 11 produces When vibration occurs, it can also play a shock absorption role and improve the stability of the caster body 11. When the water is deep, the bidirectional screw 41 is rotated in the opposite direction, causing the baffle assembly 20 to open and the projected area of the horizontal section to increase. This pushes the solenoid 51 to drive the caster body 11 to extend below the baffle assembly 20. In this working state, the baffle assembly 20 can increase the resistance of the caster body 11 forward. When the resistance brought by the baffle assembly 20 is large, the difficulty of moving the caster body 11 and the equipment installed on the caster body 11 in the water increases.
[0030] refer to Figure 5 as well as Figure 6 The top surface of the caster body 11 is provided with a spring groove 52. The bottom end of the push screw tube 51 is detachably connected to a limit ring 55. The bottom surface of the limit ring 55 is fixedly connected to the inner bottom surface of the spring groove 52 through a buffer spring 53. The limit ring 55 slides along the inner wall of the spring groove 52. When the caster body 11 is obstructed or vibrates, the push screw tube 51 drives the limit ring 55 to slide along the inner wall of the spring groove 52. The buffer spring 53 is compressed under force, which buffers the caster body 11. The spring groove 52 is provided with a lifting slide groove 111 relative to the inner wall of the limit ring 55. The limit ring 55 is adapted to the lifting slide groove 111. The limit ring 55 slides along the inside of the lifting slide groove 111, which limits the movement of the limit ring 55.
[0031] refer to Figure 5 A snap-fit ring 54 is fixed to the outer side of the bottom end of the push screw tube 51, and a snap-fit groove 551 is opened on the surface of the limiting ring 55. The snap-fit ring 54 snaps into the snap-fit groove 551. By snapping the snap-fit ring 54 into the snap-fit groove 551, a detachable connection is formed between the push screw tube 51 and the caster body 11. Therefore, when it is necessary to maintain and clean the caster body 11, the caster body 11 can be quickly disassembled, making the caster body 11 more convenient. A connecting frame 23 for fixing the baffle body 21 is provided between the baffle body 21 and the mounting base 13. The two ends of the connecting frame 23 are fixedly connected to the mounting base 13 and the baffle body 21, respectively. The vertical section of the connecting frame 23 is I-shaped.
[0032] refer to Figure 5 Both ends of the bidirectional lead screw 41 have a first bevel gear 42 that rotates coaxially. The bottom end of the first bevel gear 42 meshes with a second bevel gear 43. The bottom end of the second bevel gear 43 has a push screw 44 that rotates coaxially. The push screw 44 is threadedly engaged with the push screw tube 51. Both ends of the bidirectional lead screw 41 pass through the mounting base 13 and extend to the outer surface of the mounting base 13. Both ends of the bidirectional lead screw 41 are fixedly connected to handles 411 to facilitate the user's rotation of the bidirectional lead screw 41. When the bidirectional lead screw 41 rotates, it drives the second bevel gear 43 under the action of the meshing force between the gears. The bevel gear 43 rotates, which in turn drives the push screw 44 to rotate. At this time, under the action of the meshing force between the threads, the push screw tube 51 is driven to extend downward along the bottom surface of the mounting base 13. The outer side of the push screw tube 51 has a ring array of limit blocks 441. The mounting base 13 has a limit groove 131 on the outer side of the limit block 441. The limit block 441 is adapted to the limit groove 131. The limit block 441 slides along the inside of the limit groove 131, which plays a limiting role in the push screw tube 51 and prevents the push screw 44 from rotating coaxially with the push screw tube 51.
[0033] refer to Figure 2 as well as Figure 4The outer thread of the bidirectional lead screw 41 is threaded with symmetrically distributed lead screw sleeves 32. The push rod 31 can rotate above the lead screw sleeves 32. A limiting component 33 is provided between the lead screw sleeves 32 and the push rod 31 to limit the rotatable angle range of the push rod 31. The limiting component 33 includes a hinged inclined rod 335 fixed to the top surface of the two lead screw sleeves 32 at their adjacent ends. The top end of the hinged inclined rod 335 is hinged to the bottom end of the push rod 31, and the push rod 31 can rotate around the hinge point. A limiting ring 333 is provided above the lead screw sleeves 32 and can slide and rise along the side surface of the lead screw sleeves 32. A limiting protrusion 334 is fixed to the surface of the push rod 31 relative to the limiting ring 333. The limiting ring 333 moves along the inside of the limiting protrusion 334. The sliding action limits the push rod 31. The side of the screw sleeve 32 is fixed with a limiting housing 331, and the bottom surface of the limiting ring 333 is fixed with a limiting slide rod 332. The limiting slide rod 332 slides along the inside of the limiting housing 331. When the screw sleeve 32 drives the hinged inclined rod 335 and the push rod 31 to move synchronously along the surface of the bidirectional screw 41, the push rod 31 drives the limiting protrusion 334 to move. Then the limiting protrusion 334 pushes the limiting ring 333 to slide downward along the side of the screw sleeve 32. At this time, the top of the push rod 31 pushes the baffle skirt 22 to rotate along the hinge point with the baffle body 21. Correspondingly, the projected area of the horizontal section of the baffle assembly 20 changes, and the resistance between it and the water flow changes.
[0034] It should be noted that, in this document, the use of relational terms such as "first" and "second" is merely for distinguishing one entity or operation from another, and does not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0035] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A caster device for special underwater operation equipment, comprising a mounting base (13), wherein two symmetrically distributed caster bodies (11) are provided at the bottom end of the mounting base (13), and a mounting groove (12) is formed inside the mounting base (13), characterized in that: The mounting groove (12) contains a transmission component (40) with transmission function. The transmission component (40) includes a bidirectional lead screw (41) passing through the mounting groove (12). Both ends of the bidirectional lead screw (41) are provided with push screw tubes (51) that can extend downward from the bottom of the mounting base (13). The bottom end of the push screw tube (51) elastically rises and falls along the inside of the caster body (11). A baffle assembly (20) is provided above the mounting base (13). The baffle assembly (20) includes a baffle body (21). Both ends of the baffle body (21) are hinged with baffle skirts (22). An adjustment component (30) is provided between the bidirectional lead screw (41) and the baffle assembly (20). The adjustment component (30) includes a push rod (31) that can move along the outside of the bidirectional lead screw (41) to push the baffle skirt (22) to rotate around the hinge point with the baffle body (21).
2. The caster device for special underwater operation equipment according to claim 1, characterized in that: The top surface of the caster body (11) is provided with a spring groove (52). The bottom end of the push screw (51) is detachably connected to a limit ring (55). The bottom surface of the limit ring (55) is fixedly connected to the inner bottom surface of the spring groove (52) through a buffer spring (53). The limit ring (55) slides along the inner wall of the spring groove (52).
3. The caster device for special underwater operation equipment according to claim 2, characterized in that: The spring groove (52) has a lifting slide groove (111) on the inner wall of the limiting ring (55), and the limiting ring (55) is adapted to the lifting slide groove (111).
4. The caster device for special underwater operation equipment according to claim 2, characterized in that: A snap ring (54) is fixed to the outer side of the bottom end of the push screw (51), and a snap groove (551) is opened on the surface of the limiting stop ring (55), and the snap ring (54) is snapped into the snap groove (551).
5. The caster device for special underwater operation equipment according to claim 1, characterized in that: A connecting frame (23) is provided between the baffle body (21) and the mounting base (13), and the two ends of the connecting frame (23) are fixedly connected to the mounting base (13) and the baffle body (21) respectively.
6. The caster device for special underwater operation equipment according to claim 4, characterized in that: Both ends of the bidirectional lead screw (41) are coaxially rotated with a first bevel gear (42), the bottom end of the first bevel gear (42) is meshed with a second bevel gear (43), the bottom end of the second bevel gear (43) is coaxially rotated with a push screw (44), and the push screw (44) is threadedly engaged with the push screw tube (51).
7. The caster device for special underwater operation equipment according to claim 6, characterized in that: Both ends of the bidirectional lead screw (41) pass through the mounting base (13) and extend to the outer surface of the mounting base (13), and both ends of the bidirectional lead screw (41) are fixedly connected to handles (411).
8. The caster device for special underwater operation equipment according to claim 2, characterized in that: The outer ring array of the push solenoid (51) has a limiting block (441), and the mounting base (13) has a limiting groove (131) on the outer side of the limiting block (441), and the limiting block (441) is adapted to the limiting groove (131).
9. A caster device for special underwater operation equipment according to claim 6, characterized in that: The outer thread of the bidirectional lead screw (41) is threaded with symmetrically distributed lead screw sleeves (32), and the push rod (31) can rotate above the lead screw sleeve (32). A limit component (33) is provided between the lead screw sleeve (32) and the push rod (31) to limit the rotatable angle range of the push rod (31).
10. A caster device for special underwater operation equipment according to claim 9, characterized in that: The limiting component (33) includes a hinged inclined rod (335) fixed to the top surface of two lead screw sleeves (32) near one end. The bottom end of the push rod (31) at the top of the hinged inclined rod (335) is hinged together. A limiting ring (333) is provided above the lead screw sleeve (32) and can slide and rise along the side surface of the lead screw sleeve (32). A limiting protrusion (334) is fixed to the surface of the push rod (31) relative to the limiting ring (333), and the limiting ring (333) slides along the inside of the limiting protrusion (334). A limiting housing (331) is fixed to the side of the lead screw sleeve (32), and a limiting slide rod (332) is fixed to the bottom surface of the limiting ring (333). The limiting slide rod (332) slides along the inside of the limiting housing (331).