Assembled sectional screw
By designing assembled segmented screws, using the structure of the step part and casing, the segmented assembly and stable connection of the screws are achieved, solving the problem of the double-headed screw being discarded due to wear, and reducing resource waste and use costs.
Patent Information
- Application Number
- CN202422044882.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-08-22
AI Technical Summary
When using a double-headed screw, if the external threads at either end of the screw are worn, the entire double-headed screw needs to be discarded and replaced, resulting in waste of resources and increased cost of use.
An assembled segmented screw is designed, including a first screw and a second screw. Through the design of the step part and the sleeve, the segmented assembly and stable connection of the screw is realized.
The design allows replacement when a section of screw is damaged. Unbreakable screws can continue to be used, greatly reducing resource waste and usage costs, and improving connection stability and protecting threaded hole slots through casing.
Smart Images
Figure CN223049187U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of segmented screws, in particular to an assembled segmented screw. Background Art
[0002] During the use of a double-headed screw, if the external thread of either end of the screw is worn, the entire double-headed screw will be discarded and replaced, resulting in a waste of resources and an increase in the usage cost, making it difficult to meet the usage requirements. Content of the Utility Model
[0003] The purpose of the utility model is to provide an assembled segmented screw, aiming to solve the problems mentioned in the above background art.
[0004] To achieve the above purpose, the utility model adopts the following technical scheme: The assembled segmented screw includes a first screw and a second screw. One end of the first screw is provided with an internal thread hole and an external thread groove. One end of the second screw is provided with a stepped portion, which includes a first raised portion, a second raised portion, and a third raised portion. The outer diameters of the first raised portion, the second raised portion, and the third raised portion increase in sequence. A through hole is provided on the first raised portion, and external thread grooves are provided on the outer surfaces of the second raised portion and the third raised portion. It further includes a sleeve, an internal thread groove is provided inside the sleeve, and insertion holes are provided on both the sleeve and the first screw. It also includes an insertion rod for connecting the sleeve, the first screw, and the first raised portion through the through hole and the insertion hole.
[0005] Preferably, one end of the insertion rod is provided with a blocking block, a slot for placing the blocking block is provided on the outer surface of the sleeve, and the outer surface of the blocking block is on the same arc surface as the outer surface of the sleeve.
[0006] Preferably, a rubber sleeve is sleeved on the outer surface of the insertion rod.
[0007] Preferably, the rubber sleeve has only one open end, and the open end of the rubber sleeve faces the blocking block.
[0008] Preferably, stepped grooves are respectively provided at both ends of the internal thread groove inside the sleeve.
[0009] The beneficial effects of the utility model are as follows:
[0010] For this kind of screw with a segmented structure, after one segment of the screw is damaged, it can be replaced, and the undamaged screw can continue to be used, thus greatly reducing the waste of resources and the usage cost. Moreover, the connection stability between the first screw and the second screw can be improved through the sleeve, and the thread holes and grooves on the first screw and the second screw can be protected, with good usage effects. Description of the Drawings
[0011] Figure 1 It is a schematic structural view of a specific embodiment of the present utility model.
[0012] Figure 2 It is a schematic connection view of the first screw rod and the second screw rod.
[0013] Figure 3 It is a schematic structural view of the abutting block and the inserting rod.
[0014] In the figure: 1. The first screw rod; 2. The second screw rod; 3. The first convex part; 4. The second convex part; 5. The third convex part; 6. The through hole; 7. The sleeve; 8. The inserting rod; 9. The abutting block; 10. The rubber sleeve. Specific Embodiment
[0015] The following further explains the specific embodiment of the present utility model with reference to the accompanying drawings.
[0016] As Figures 1 - 3 shown, a assembled segmented screw rod includes a first screw rod 1 and a second screw rod 2. One end of the first screw rod 1 is provided with an internal thread hole and an external thread groove. One end of the second screw rod 2 is provided with a stepped portion, and the stepped portion includes a first convex part 3, a second convex part 4 and a third convex part 5. The outer diameters of the first convex part 3, the second convex part 4 and the third convex part 5 increase in sequence. A through hole 6 is provided on the first convex part 3. External thread grooves are provided on the outer surfaces of the second convex part 4 and the third convex part 5. It further includes a sleeve 7, an internal thread groove is provided inside the sleeve 7, and insertion holes are provided on both the sleeve 7 and the first screw rod 1. It further includes an inserting rod 8 for connecting the sleeve 7, the first screw rod 1 and the first convex part 3 through the through hole 6 and the insertion holes.
[0017] When assembling the first screw rod 1 and the second screw rod 2 together, first insert one end of the external thread groove of the first screw rod 1 into the sleeve 7, and thread-connect the external thread groove of the first screw rod 1 with the internal thread groove of the sleeve 7. After the first screw rod 1 is thread-connected to the sleeve 7, insert the stepped portion of the second screw rod 2 into the sleeve 7. At the same time, thread-connect the external thread groove on the outer surface of the second convex part 4 with the internal thread hole of the first screw rod 1, and thread-connect the external thread groove of the third convex part 5 with the internal thread groove of the sleeve 7. A groove for inserting the first convex part 3 is provided inside the first screw rod 1, and the first convex part 3 can be directly inserted into the groove. When the second convex part 4 and the third convex part 5 are respectively thread-connected to the first screw rod 1 and the sleeve 7, at this time, the insertion holes on the sleeve 7 and the first screw rod 1 are aligned with the through hole 6 on the first convex part 3, and the inserting rod 8 can be sequentially penetrated through the sleeve 7, the first screw rod 1 and the first convex part 3. Through the inserting rod 8, the separation of the first screw rod 1 and the second screw rod 2 can be avoided.
[0018] Through the first protrusion 3, the second protrusion 4, and the third protrusion 5 on the second screw 2, the contact area between the second screw 2 and the first screw 1 can be increased. And through the arranged sleeve 7, the connection stability between the first screw 1 and the second screw 2 can be further increased. Moreover, the sleeve 7 can also protect the thread grooves or holes on the first screw 1 and the second screw 2. At the same time, the sleeve 7 can also keep the first screw 1 and the second screw 2 in a centered state.
[0019] Further, one end of the insertion rod 8 is provided with a blocking block 9. A slot for placing the blocking block 9 is opened on the outer surface of the sleeve 7. The outer surface of the blocking block 9 is on the same arc surface as the outer surface of the sleeve 7. The contact area of one end of the insertion rod 8 can be increased through the blocking block 9, which is convenient for pushing the insertion rod 8 into the insertion hole and the through hole 6.
[0020] Further, a rubber sleeve 10 is sleeved on the outer surface of the insertion rod 8. Through the arranged rubber sleeve 10, the insertion rod 8 can be firmly fixed in the insertion hole and the through hole 6.
[0021] Further, only one end of the rubber sleeve 10 is open. The open end of the rubber sleeve 10 faces the blocking block 9, which is convenient for passing the insertion rod 8 and the rubber sleeve 10 through the insertion hole and the through hole 6, avoiding curling at the end of the rubber sleeve 10 in contact with the insertion hole and the through hole 6, and ensuring that the insertion rod 8 can stably enter the insertion hole and the through hole 6.
[0022] Further, stepped grooves are respectively arranged at both ends of the internal thread groove of the sleeve 7. When the first screw 1 abuts against the stepped groove in the sleeve 7, the first screw 1 cannot continue to rotate into the sleeve 7, thereby facilitating the accurate connection control of the first screw 1 and the sleeve 7. At the same time, it is also convenient for controlling the accurate connection of the second screw 2 and the sleeve 7. When both the first screw 1 and the second screw 2 abut against the stepped groove in the sleeve 7, the insertion holes on the sleeve 7 and the first screw 1 are aligned with the through hole 6 on the first protrusion 3.
[0023] For the screw with this kind of segmented method, one of the segmented screws can be replaced after it is damaged, and the undamaged screws can continue to be used, which can greatly reduce resource waste and usage costs. And the connection stability between the first screw 1 and the second screw 2 can be improved through the sleeve 7, and the thread holes and grooves on the first screw 1 and the second screw 2 can be protected, with good usage effects.
[0024] In the description of the present utility model, unless otherwise clearly stipulated and defined, the terms "installation", "connection", and "coupling" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
Claims
1. An assembled segmented screw, characterized in that: It includes a first screw and a second screw, one end of the first screw is provided with an internal thread hole and an external thread groove, one end of the second screw is provided with a stepped portion, the stepped portion includes a first protrusion, a second protrusion and a third protrusion, the outer diameters of the first protrusion, the second protrusion and the third protrusion are increased successively, a through hole is provided on the first protrusion, the outer surfaces of the second protrusion and the third protrusion are provided with external thread grooves, a sleeve is also included, the interior of the sleeve is provided with an internal thread groove, the sleeve and the first screw are provided with insertion holes, and an insertion rod is also included for connecting the sleeve, the first screw and the first protrusion through the through hole and the insertion hole.
2. The assembled segmented screw according to claim 1 is characterized in that: A stop block is arranged at one end of the insertion rod, a slot for placing the stop block is arranged on the outer surface of the sleeve, and the outer surface of the stop block and the outer surface of the sleeve are on the same arc surface.
3. The assembled segmented screw according to claim 2 is characterized in that: The outer surface of the insertion rod is sleeved with a rubber sleeve.
4. The assembled segmented screw according to claim 3 is characterized in that: The rubber sleeve has only one open end, and the open end of the rubber sleeve faces the stop block.
5. The assembled segmented screw according to any one of claims 1 to 4, characterized in that: Both ends of the internal thread groove inside the sleeve are respectively provided with stepped grooves.