Center tube cupping pull rod tool
By introducing rotating rods and support components into the central pipe extraction tool, the rotation and linear movement of the internal threaded pipe is achieved by using worm gear and worm transmission, the problem that the existing tooling is unable to adapt to different inner diameters is solved, and the stability and safety of the central pipe extraction process is ensured.
Patent Information
- Application Number
- CN202421796891.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-07-29
AI Technical Summary
The existing central pipe pull-out tooling structure is simple, the pull rod hook head cannot be adjusted, and it cannot be applied to central pipes of different inner diameters. The hook head cannot be refitted after wear, resulting in discontinuous operation and reduced safety.
A central tube cupping tie rod tooling is designed, which adopts a rotating rod and support assembly inside the hollow tie rod. The internal threaded tube is meshed with the worm gear, and the internal threaded tube is driven to rotate through the worm sleeve, and the screw moves linearly. The tie rod hook head and the transverse hook head can be adjusted to ensure stable clamping and adaptation to different inner diameters.
The stable clamping of the central tubes of different inner diameters is achieved to prevent the hook head from being worn and decoupling, improving the scope of application and operation continuity and safety.
Smart Images
Figure CN223057143U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of central tube extraction, in particular to a central tube cupping pull rod tooling. Background Art
[0002] In the production process of the central tube, it is often necessary to extract the central tube from the mold. A circle of pull rod hook heads is arranged at the end of the traditional central tube extraction cupping pull rod to clamp the central tube from the inner wall of the central tube, and then the extraction work is carried out.
[0003] At present, the existing central tube extraction tooling has a simple structure, and the pull rod hook head cannot be adjusted, so it cannot be applied to the clamping of central tubes with different inner diameters. Different inner diameter central tubes require different pull rod toolings, so multiple pull rod toolings need to be prepared for replacement. And if the hook head is slightly worn, the corresponding central tube cannot be extracted, and it is easy to unhook. Summary of the Utility Model
[0004] The purpose of the utility model is to solve the problems existing in the prior art, and a central tube cupping pull rod tooling is proposed.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0006] The central tube cupping pull rod tooling includes a hollow pull rod, a rotating rod is rotatably arranged inside the hollow pull rod, and two groups of support components are arranged inside the hollow pull rod;
[0007] Each group of support components includes connectors fixedly arranged above and below the inner wall of the hollow pull rod. Two symmetric internal threaded tubes are rotatably arranged between the two connectors. Worm gears are fixedly sleeved on the outer walls of the two internal threaded tubes. Screws are respectively threadedly connected inside the two internal threaded tubes. A pull rod hook head is fixedly connected between the ends of adjacent two screws, and a plurality of evenly distributed transverse hook heads are fixedly connected between adjacent two pull rod hook heads.
[0008] Preferably, a worm gear sleeve is fixedly sleeved on the outer wall of the rotating rod, and the worm gear sleeve meshes with the worm gear.
[0009] Preferably, the thread directions at both ends of the inner wall of the internal threaded tube are arranged in opposite directions.
[0010] Preferably, a through groove for accommodating the pull rod hook head is opened on the outer wall of the hollow pull rod, and a transverse groove for accommodating the transverse hook head and communicating with the through groove is opened on the outer wall of the hollow pull rod.
[0011] Preferably, a limiting rod is fixedly connected to the side of the pull rod hook head facing the connector, and the end of the limiting rod away from the pull rod hook head penetrates through the connector and extends into the interior of the hollow pull rod.
[0012] Preferably, a limiting plate is fixedly connected to one end of the limiting rod away from the pull rod hook head. When the pull rod hook head is completely located in the through groove, there is a gap between the limiting plate and the worm gear.
[0013] Preferably, the right end of the rotating rod penetrates through the hollow pull rod and extends to the right side of the hollow pull rod, and a hand crank is fixedly connected to the right end of the rotating rod.
[0014] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:
[0015] 1. In the present utility model, through the meshing of the worm gear sleeve and the worm, the inner threaded tube can rotate precisely and stably. Through screw thread transmission, the inner threaded tube realizes linear movement on the premise that the screw rod is limited, ensuring the stability and accuracy of the pull rod hook head and the transverse hook head during the moving-out process, so as to accurately contact the inner wall of the central tube and achieve effective clamping.
[0016] 2. In the present utility model, the positions of the pull rod hook head and the transverse hook head can be adjusted, which can adapt to central tubes with different inner diameters, greatly improving its application range. At the same time, when the pull rod hook head and the transverse hook head are slightly worn due to long-term use, they can be reattached to the inner wall of the central tube through simple adjustment, effectively preventing the occurrence of the hook detachment phenomenon and ensuring the continuity and safety of the operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a three-dimensional structural schematic diagram of the central tube cupping pull rod tooling proposed by the present utility model;
[0018] Figure 2 is an internal structural schematic diagram of the central tube cupping pull rod tooling proposed by the present utility model;
[0019] Figure 3 is a structural schematic diagram of the hollow pull rod of the central tube cupping pull rod tooling proposed by the present utility model;
[0020] Figure 4 is the Figure 3 enlarged structural schematic diagram at A of the central tube cupping pull rod tooling proposed by the present utility model.
[0021] Legend: 1. Hollow pull rod; 11. Through groove; 12. Transverse groove; 2. Rotating rod; 21. Worm gear sleeve; 22. Hand crank; 3. Support assembly; 31. Connecting piece; 32. Inner threaded tube; 33. Worm gear; 34. Screw rod; 35. Pull rod hook head; 36. Transverse hook head; 37. Limiting rod; 38. Limiting plate. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0022] In order to more clearly understand the above-mentioned objects, features and advantages of the present utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.
[0023] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited to the limitations of the specific embodiments disclosed in the following specification.
[0024] As Figures 1-4 shown, the present utility model provides a central tube cupping pull rod tooling, which includes a hollow pull rod 1. A rotating rod 2 is rotatably arranged inside the hollow pull rod 1, and two groups of support components 3 are arranged inside the hollow pull rod 1;
[0025] Each group of support components 3 includes connectors 31 fixedly arranged above and below the inner wall of the hollow pull rod 1. Two symmetric internal thread tubes 32 are rotatably arranged between the two connectors 31. Worm gears 33 are fixedly sleeved on the outer walls of the two internal thread tubes 32. Screw rods 34 are respectively threadedly connected inside the two internal thread tubes 32. A pull rod hook 35 is fixedly connected between the ends of adjacent screw rods 34, and a number of uniformly distributed transverse hooks 36 are fixedly connected between adjacent pull rod hooks 35.
[0026] In this embodiment, a worm gear sleeve 21 is fixedly sleeved on the outer wall of the rotating rod 2, and the worm gear sleeve 21 meshes with the worm gear 33; the cooperation of the worm gear sleeve 21 and the worm gear 33 has a self-locking ability.
[0027] In this embodiment, the thread directions at both ends of the inner wall of the internal thread tube 32 are arranged in opposite directions; when the internal thread tube 32 rotates, the screw rods 34 at both ends thereof move in opposite directions.
[0028] In this embodiment, a through groove 11 for accommodating the pull rod hook 35 is formed on the outer wall of the hollow pull rod 1, and a transverse groove 12 for accommodating the transverse hook 36 and communicating with the through groove 11 is formed on the outer wall of the hollow pull rod 1; the pull rod hook 35 and the transverse hook 36 are accommodated through the through groove 11 and the transverse groove 12.
[0029] In this embodiment, a limiting rod 37 is fixedly connected to the side of the pull rod hook 35 facing the connector 31. One end of the limiting rod 37 away from the pull rod hook 35 penetrates through the connector 31 and extends into the interior of the hollow pull rod 1; through the limiting of the limiting rod 37, the screw rod 34 drives the pull rod hook 35 to move linearly.
[0030] In this embodiment, a limiting plate 38 is fixedly connected to one end of the limiting rod 37 away from the pull rod hook head 35. When the pull rod hook head 35 is completely located within the through slot 11, there is a gap between the limiting plate 38 and the worm gear 33. The limiting plate 38 limits the moving distance of the pull rod hook head 35 driven by the screw rod 34, preventing the screw rod 34 from disengaging from the internally threaded tube 32, and the limiting plate 38 will not contact the worm gear 33 to cause interference.
[0031] In this embodiment, the right end of the rotating rod 2 penetrates through the hollow pull rod 1 and extends to the right side of the hollow pull rod 1. A hand crank 22 is fixedly connected to the right end of the rotating rod 2. The rotation of the rotating rod 2 can be conveniently controlled through the hand crank 22, improving the usability.
[0032] Usage method and working principle of this device:
[0033] When this device is in use, first insert the end of the hollow pull rod 1 with the support assembly 3 into the central tube. Rotate the rotating rod 2 through the hand crank 22 to drive the worm gear sleeve 21 to rotate. The worm gear sleeve 21 can drive the worm meshing with it to drive the internally threaded tube 32 to rotate. The rotation of the internally threaded tube 32 causes the screw rod 34 to linearly move under the premise of being limited by the thread. When the screw rod 34 moves, it drives the pull rod hook head 35 and the transverse hook head 36 to move out of the through slot 11 and the transverse slot 12 respectively. During the moving out process, the pull rod hook head 35 and the transverse hook head 36 contact the inner wall of the central tube and clamp from the inside of the central tube. Subsequently, pull out the central tube. Since the positions of the pull rod hook head 35 and the transverse hook head 36 can be adjusted, it is applicable to the clamping of central tubes with different inner diameters, improving the scope of application. And even when the pull rod hook head 35 and the transverse hook head 36 are slightly worn, they can be adjusted again to make them close to the inner wall of the central tube to prevent unhooking.
[0034] The above is only a preferred embodiment of the present invention, and it is not a limitation of the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims
1. Central tube cupping pull rod tooling, characterized in that: It includes a hollow pull rod (1), a rotating rod (2) is rotatably arranged inside the hollow pull rod (1), and two groups of support components (3) are arranged inside the hollow pull rod (1); Each group of the support components (3) includes connectors (31) fixedly arranged above and below the inner wall of the hollow pull rod (1). Two symmetrical internal thread pipes (32) are rotatably arranged between the two connectors (31). Worms (33) are fixedly sleeved on the outer walls of the two internal thread pipes (32). Screws (34) are respectively threadedly connected inside the two internal thread pipes (32). A pull rod hook head (35) is fixedly connected between the ends of adjacent two of the screws (34). A number of evenly distributed transverse hook heads (36) are fixedly connected between the adjacent two pull rod hook heads (35).
2. The central tube cupping pull rod tooling according to claim 1, characterized in that: A worm gear sleeve (21) is fixedly sleeved on the outer wall of the rotating rod (2), and the worm gear sleeve (21) meshes with the worm (33).
3. The central tube cupping pull rod tooling according to claim 1, wherein: The thread directions at both ends of the inner wall of the internal thread pipe (32) are arranged in opposite directions.
4. The central tube cupping pull rod tooling according to claim 1, characterized in that: A through groove (11) for accommodating the pull rod hook head (35) is formed on the outer wall of the hollow pull rod (1), and a transverse groove (12) for accommodating the transverse hook head (36) and communicating with the through groove (11) is formed on the outer wall of the hollow pull rod (1).
5. The central tube cupping pull rod tooling according to claim 4, characterized in that: A limiting rod (37) is fixedly connected to the side of the pull rod hook head (35) facing the connector (31). One end of the limiting rod (37) away from the pull rod hook head (35) penetrates through the connector (31) and extends into the interior of the hollow pull rod (1).
6. The central tube cupping pull rod tooling according to claim 5, characterized in that: A limiting plate (38) is fixedly connected to the end of the limiting rod (37) away from the pull rod hook head (35). When the pull rod hook head (35) is completely located in the through groove (11), there is a gap between the limiting plate (38) and the worm (33).