Punching connector with flange spiral pair structure
By designing a flange structure at the threaded front end of the screw, the problem of poor screw-tube engagement stability is solved, ensuring stable engagement between the screw and tube, preventing screw chipping, and improving the reliability and efficiency of punching operations.
Patent Information
- Application Number
- CN202520156582.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2025-01-16
- Filing Date
- 2025-01-23
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-01-23
AI Technical Summary
When existing punched joints are used on construction sites, the engagement stability between the screw and the tube is not good, which can easily lead to the problem of screw thread breakage.
A flange structure is designed at the front end of the screw thread to ensure that the screw and the tube remain engaged after withdrawal, thereby maintaining stable engagement during re-punching and preventing the screw threads from breaking.
The flange design enables stable engagement between the screw and the tube, preventing screw chipping and improving the reliability and efficiency of punching operations.
Smart Images

Figure CN223862639U_ABST
Abstract
Description
Technical Field
[0001] This utility model provides a punching joint with a flanged spiral pair structure to solve the problem of punching thin plates on construction sites. Background Technology
[0002] Thin sheet metal punching (e.g., electrical boxes) is performed on-site using punching tools according to actual needs. Taiwan Utility Model Patent No. M607915, "Improved Punching Joint Structure," describes a screw-type structure where the screw rotates in both directions during punching, causing the screw tube to reciprocate linearly. When the workpiece is removed after punching, the screw tube exits one end of the screw. When punching again, the screw tube re-enters the screw thread. If the screw and screw tube completely separate, the screw will break due to misalignment, and the screw-screw engagement stability is poor. Therefore, in response to the shortcomings of the existing structure, developing a more ideal and practical innovative structure is what users earnestly hope for and is also the goal and direction that related companies must strive to achieve through research and development. Utility Model Content
[0003] In view of the shortcomings of the existing punched joint structure, the main purpose of this utility model is to provide a punched joint with a flanged helical pair structure to solve the problems of screw thread breakage and poor stability of screw and tube engagement. The technical feature of this solution is that a flange is provided at the front end of the screw thread. When the tube is withdrawn from one end of the screw, it still maintains the engagement state. When punched and engaged again, it can ensure the stable engagement of the screw and tube and effectively prevent screw thread breakage.
[0004] This utility model provides a punched connector with a flanged helical pair structure, comprising: a punching structure, a helical pair structure, and a body, wherein...
[0005] The punching structure includes: a punching block, one end of which is provided with a punching part and the other end is provided with a screw hole; a movable retaining ring, one end of which is provided with a through hole and the other end is a hollow ring-shaped body;
[0006] The spiral structure includes: a spiral tube, which is a hollow body, with a threaded screw rod on the inner diameter of one end and a threaded hole for threaded connection of the punching block on the other end; a screw rod, with a threaded connection of the spiral tube on one end and a joint for engaging the drive device on the other end.
[0007] The main body is a hollow body used to accommodate the spiral pair structure, with a through hole at one end and a hollow annular body at the other end;
[0008] The screw has a flange at the threaded front end.
[0009] Another embodiment of this utility model provides a punched joint with a flanged helical pair structure, comprising: a punching structure, a helical pair structure, a body, a retaining ring, two elastic bodies, and a bearing assembly, wherein...
[0010] The punching structure includes: a punching block, one end of which is provided with a punching part and the other end is provided with a screw hole; a movable retaining ring, one end of which is provided with a through hole and the other end is a hollow ring-shaped body;
[0011] The spiral structure includes: a pull rod with threads at both ends, one end of which is a mating part for screwing the punching block, and the other end of which is screwed to a screw tube; a screw tube with the pull rod screwed to one end and a screw rod screwed to the other end; and a screw rod with a threaded part for screwing the screw tube to one end and a connecting part for engaging the drive device at the other end.
[0012] The main body is a hollow body used to accommodate the helical pair structure, and one end of it is provided with a thread for screwing in and fixing the ring sleeve.
[0013] The fixing ring has a screw hole at one end and a through hole at the other end;
[0014] An elastic body is fitted onto the pull rod to tighten the screw tube;
[0015] An elastic body is fitted onto the screw to tighten the screw tube;
[0016] The bearing assembly is mounted on the screw;
[0017] The screw has a flange at the threaded front end.
[0018] In one embodiment, the length of the flange is 1.5 mm to 2.0 mm.
[0019] In one embodiment, the specifications of the punching structure can be interchanged to match the size of the punched hole diameter.
[0020] In one embodiment, the joint of the screw is a hexagonal prism or a quick-release connector.
[0021] In one embodiment, the drive device is powered by pneumatic or electric power. Attached Figure Description
[0022] Figure 1 This is an exploded view of Embodiment 1 of the present invention.
[0023] Figure 2 This is an exploded view of an embodiment of the present invention.
[0024] Figure 3 This is an exploded view of Embodiment 2 of the present invention.
[0025] Figure 4 This is a cross-sectional view of the punching action in Embodiment 1 of this utility model.
[0026] Figure 5 This is a cross-sectional view of the punching operation in Embodiment 2 of this utility model.
[0027] Figure 6 This is a perspective view of the screw of this utility model.
[0028] Figure 7 This is a plan view of the screw of this utility model.
[0029] Explanation of key component symbols:
[0030] 10. Punching Structure
[0031] 11 Punching Blocks
[0032] 111 Punching section
[0033] 112 screw hole
[0034] 12 movable retaining rings
[0035] 121 Through hole
[0036] 122 Concave surface
[0037] 123 Hollow ring
[0038] 20 Spiral Pair Structure
[0039] 21 Screw tube
[0040] 211 Discontinuity
[0041] 212 thread
[0042] 213 Mating part
[0043] 22 screw
[0044] 221 thread
[0045] 222 Joint
[0046] 223 Sudden Edge
[0047] 23. Pull rod
[0048] 231 Mating Part
[0049] 232 thread
[0050] 30 body
[0051] 31 Discontinuity
[0052] 32 Through holes
[0053] 33 Convex surface
[0054] 34 Hollow ring-shaped body
[0055] 35 thread
[0056] 40 Fixing ring
[0057] 41 Screw hole
[0058] 42 Through holes
[0059] 43 Convex surface
[0060] 50 Elastomer
[0061] 60 Elastomer
[0062] 70 bearing assembly
[0063] P drive unit
[0064] W workpiece
[0065] H Preset Hole
[0066] L length Detailed Implementation
[0067] Please see Figure 3 The diagram shows a preferred embodiment of the present invention. However, these embodiments are for illustrative purposes only and are not limited to this structure in patent applications. To further understand the structural design and technology of the present invention, a detailed description is provided below in conjunction with the accompanying drawings:
[0068] Please see Figure 1 , Figure 2 and Figure 3 The present invention relates to a punching connector with a flanged helical pair structure, comprising: a punching structure 10, which includes: a punching block 11, one end of which has a punching portion 111 and the other end has a threaded hole 112; a movable retaining ring 12, one end of which has a through hole 121, a concave surface 122 around the through hole 121, and the other end is a hollow annular body 123. A helical pair structure 20 includes: a helical tube 21, one end of which is a hollow body with a notch 211 of different outer diameters, and an inner diameter with a thread 212 for screwing a screw rod 22, and the other end is an insertion portion 213 with a threaded hole 112 for screwing the punching block 11; and a screw rod 22, one end of which has a thread 221 for screwing the helical tube 21, and the other end has a connecting portion 222 for engaging a driving device. A body 30 is a hollow body with a gap 31 of different inner diameters for accommodating the helical pair structure 20. One end of the body has a through hole 32, and a convex surface 33 is provided around the through hole 32. The other end is a hollow annular body 34.
[0069] Please see Figure 6 This is a perspective view of the screw of this utility model. The present utility model has a punched joint with a flanged helical pair structure. The front end of the thread 221 of the screw 22 is provided with a flange 223.
[0070] Please see Figure 4 This is an animated diagram illustrating the punching operation of a punching connector with a flanged helical pair structure according to an embodiment of this utility model. The engagement portion 222 of the screw 22 of this utility model can be engaged and linked with an external drive device P. During the punching operation, the movable retaining ring 12 is sequentially inserted into the insertion portion 213 of the screw tube 21. Then, the preset hole H of the workpiece W is inserted into the insertion portion 213. Next, the punching block 11 is screwed into the insertion portion 213. The engagement portion 222 of the screw 22 of the helical pair structure 20 engages with the drive device P, causing the screw 22 to rotate in both directions, driving the screw tube 21 to perform reciprocating linear motion for punching the structure. When the workpiece W is removed after punching, the screw tube 21 exits one end of the screw 22. The flange 223 at the front end of the thread 221 of the screw 22 maintains the engagement state. When punching and screwing again, the screw 22 and screw tube 21 are stably and reliably engaged.
[0071] Please see Figure 2 , Figure 3 , Figure 5 and Figure 6 The present invention relates to a punching connector with a flanged helical pair structure, comprising: a punching structure 10, comprising: a punching block 11, one end of which has a punching portion 111 and the other end has a threaded hole 112; a movable retaining ring 12, one end of which has a through hole 121, a concave surface 122 around the through hole 121, and the other end is a hollow annular body 123. A helical pair structure 20, comprising: a pull rod 23, both ends of which are threaded, one end being an insertion portion 231 threaded to the punching block 11, and the other end threaded 232 threaded to a screw tube 21; a screw tube 21, which is a hollow body with a gap 211 of different outer diameters, each end of which has a thread on its inner diameter, one end threaded to the pull rod 23, and the other end threaded to a screw rod 22; and a screw rod 22, one end of which has a thread 221 threaded to the screw tube 21, and the other end having a connecting portion 222 for engaging a drive device P. A body 30, which is a hollow body with gaps 31 of different inner diameters, is used to accommodate the helical pair structure 20. One end of the body has a thread 35 for screwing the fixing ring 40. A fixing ring 40 has a threaded hole 41 at one end and a through hole 42 at the other end, with a convex surface 43 around the through hole 42. An elastic body 50 is fitted onto the pull rod 23 and positioned between the fixing ring 40 and the screw tube 21 to tighten the screw tube 21. An elastic body 60 is fitted onto the screw rod 22 and positioned between the screw tube 21 and the bearing assembly 70 to tighten the screw tube 21. A bearing assembly 70 is fitted onto the screw rod 22.
[0072] Please see Figure 6 This is a perspective view of the screw of this utility model. The present utility model has a punched joint with a flanged helical pair structure. The front end of the thread 221 of the screw 22 is provided with a flange 223.
[0073] Please see Figure 5 This is a punching animation of Embodiment 2 of the punching joint with flanged helical pair structure of this utility model. The joint portion 222 of the screw 22 of this utility model can be engaged and linked with the external drive device P. During the punching operation, the movable retaining ring 12 is sequentially inserted into the insertion portion 231 of the pull rod 23. Then, the preset hole H of the workpiece W is inserted into the insertion portion 231. Next, the punching block 11 is screwed into the insertion portion 231. Through the engagement portion 222 of the screw 22 of the helical pair structure 20, the drive device P rotates the screw 22 in both directions, driving the screw tube 21 to move the pull rod 23 in reciprocating linear motion to perform the punching operation of the punching structure. When the workpiece W is removed after punching, the screw tube 21 is withdrawn from one end of the screw 22. The flange 223 at the front end of the thread 221 of the screw 22 maintains the engagement state. When punching and screwing again, the screw 22 and the screw tube 21 can achieve a stable and reliable engagement.
[0074] Please see Figure 7 This is a plan view of the screw of this utility model. This utility model has a punched connector with a flanged helical pair structure, wherein the length L of the flange 223 is 1.5mm to 2.0mm.
[0075] Please see Figure 1 and Figure 3 The present invention is a punching connector with a flanged spiral pair structure, wherein the specifications of the punching structure 10 are interchangeable to match the size of the punching hole.
[0076] Please see Figure 1 and Figure 3 The present invention provides a punched connector with a flanged spiral pair structure, wherein the joint 222 of the screw 22 is a hexagonal prism or a quick-release connector.
[0077] Please see Figure 4 and Figure 5 The present invention relates to a punched joint with a flanged spiral pair structure, wherein the driving device P is powered by pneumatic or electric power.
[0078] The improved efficacy of this utility model is as follows:
[0079] This utility model of a punched connector with a flanged spiral pair structure maintains the engagement state through the flange at the threaded front end of the screw. When the punched spiral pair structure is screwed in again, it can achieve a stable engagement between the screw and the tube and effectively prevent the screw from chipping.
Claims
1. A punching joint with a flanged helical pair structure, comprising: a punching structure, a helical pair structure, and a body, wherein, The punching structure includes: a punching block, one end of which is provided with a punching part and the other end is provided with a screw hole; a movable retaining ring, one end of which is provided with a through hole and the other end is a hollow ring-shaped body; The spiral structure includes: a spiral tube, which is a hollow body, with a threaded screw rod on the inner diameter of one end and a threaded hole for threaded connection of the punching block on the other end; a screw rod, with a threaded connection of the spiral tube on one end and a joint for engaging the drive device on the other end. The main body is a hollow body used to accommodate the spiral pair structure, with a through hole at one end and a hollow annular body at the other end; Its characteristic feature is that the threaded front end of the screw is provided with a flange.
2. A punched joint with a flanged helical pair structure, comprising: a punching structure, a helical pair structure, a body, a retaining ring, two elastic bodies, and a bearing assembly, wherein... The punching structure includes: a punching block, one end of which is provided with a punching part and the other end is provided with a screw hole; a movable retaining ring, one end of which is provided with a through hole and the other end is a hollow ring-shaped body; The spiral structure includes: a pull rod with threads at both ends, one end of which is a mating part for screwing the punching block, and the other end of which is screwed to a screw tube; a screw tube with the pull rod screwed to one end and a screw rod screwed to the other end; and a screw rod with a threaded part for screwing the screw tube to one end and a connecting part for engaging the drive device at the other end. The main body is a hollow body used to accommodate the helical pair structure, and one end of it is provided with a thread for screwing in and fixing the ring sleeve. The fixing ring has a screw hole at one end and a through hole at the other end; An elastic body is fitted onto the pull rod to tighten the screw tube; An elastic body is fitted onto the screw to tighten the screw tube; The bearing assembly is mounted on the screw; Its characteristic feature is that the threaded front end of the screw is provided with a flange.
3. The punched joint with flanged spiral pair structure as described in claim 1 or 2, characterized in that, The length of the flange is 1.5 mm to 2.0 mm.
4. The punched joint with flanged spiral pair structure as described in claim 1 or 2, characterized in that, The specifications of this punching structure can be replaced to match the size of the punched hole.
5. The punched joint with flanged spiral pair structure as described in claim 1 or 2, characterized in that, The joint of the screw is a hexagonal prism or a quick-release connector.
6. The punched joint with flanged spiral pair structure as described in claim 1 or 2, characterized in that, The drive unit is powered by either pneumatic or electric power.