Portable disassembling device with elastic split structure
By using a portable disassembly and assembly device with an elastic split structure, and by utilizing a parallelogram linkage mechanism and a trapezoidal lead screw to transmit force, combined with servo motor control, the safety hazard of spring force that is difficult to overcome manually has been solved, and a high-precision spring disassembly and assembly process has been achieved, improving operational safety and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI FENGHUO SHENGTIAN ELECTRONICS TECH
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-21
AI Technical Summary
In the disassembly and assembly of mechanical products, especially in precision products such as explosive bolt assembly components in the military and aerospace fields, manual operation is difficult to overcome the spring force to close the assembly, which poses safety hazards and makes it difficult to meet the requirements of high-precision production.
A portable disassembly and assembly device with a spring-loaded split structure is adopted. It uses a parallelogram linkage mechanism and a trapezoidal lead screw to transmit force through a crank handle, so as to disassemble and assemble the spring without external force. The instability and easy deformation of the parallelogram are used to tighten the spring. Combined with a servo motor and gear meshing, it achieves automated control.
It achieves a safe and reliable spring assembly and disassembly process, reduces manual labor intensity, improves assembly and disassembly accuracy and safety, and meets the production needs of high-precision products.
Smart Images

Figure CN224527119U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical disassembly and assembly equipment technology, and in particular to a portable disassembly and assembly device with an elastic split structure. Background Technology
[0002] In the field of mechanical product assembly and disassembly, the operation of components involving spring-force structures often faces many challenges, especially for some precision products, such as explosive bolt assembly components in the military and aerospace fields. The strong elastic force generated by the internal springs under compression makes it difficult to achieve precise control by manual operation.
[0003] When installing or removing explosive bolts, it is necessary to overcome the spring force to close the parts. In traditional operation methods, it is impossible to overcome the spring force to close the parts manually during the disassembly and assembly process, which poses significant safety hazards. There is a lack of effective force transmission and control mechanisms. During the disassembly and assembly process, excessive spring force can easily cause the parts to bounce up, which may cause injury to the operators and makes it difficult to meet the production requirements of high-precision products.
[0004] Therefore, it is necessary to provide a portable assembly and disassembly device with an elastic split structure to solve the above-mentioned technical problems. Utility Model Content
[0005] This utility model provides a portable disassembly and assembly device with an elastic split structure, which solves the problems that human power cannot overcome the spring force to close the parts, lack of effective force transmission and control mechanism, excessive spring force during disassembly and assembly, which can easily cause parts to bounce up and potentially injure operators, making it difficult to meet the production needs of high-precision products.
[0006] To solve the above-mentioned technical problems, this utility model provides a portable disassembly and assembly device with an elastic split structure, including: a lower fixing block and screw pins;
[0007] A right support frame is rotatably mounted on both sides of the outer surface of the lower fixed block by screws and pins. A left support frame is rotatably mounted on the other two sides of the outer surface of the lower fixed block by screws and pins. An upper fixed block is rotatably mounted on the other side of the right and left support frames by screws and pins.
[0008] A trapezoidal lead screw is disposed between the left support frame and the right support frame, and guide rods are provided on both sides inside the left support frame and the right support frame;
[0009] A right-side fixing block for the lead screw is fixedly installed at one end of the guide rod, and a crank handle is fixedly connected to one end of the trapezoidal lead screw.
[0010] Preferably, one end of the trapezoidal lead screw is rotatably mounted in the middle of the right fixed block of the lead screw via a deep groove ball bearing.
[0011] Preferably, the lower fixing block is provided with non-removable screws on all four sides of its surface.
[0012] Preferably, the upper fixing block is provided with cross-slot countersunk screws on all four sides of its surface.
[0013] Preferably, the outer surface of the guide rod is provided with a plurality of threaded holes at equal intervals, the internal threads of the threaded holes are engaged with studs, and an adjusting block is fixedly installed at the top center of the studs.
[0014] Preferably, a fixing plate is fixedly installed at the bottom of the right fixing block of the lead screw, a driving component is fixedly installed on one side of the surface of the fixing plate, and a drive gear is fixedly connected to the end of the output shaft of the driving component.
[0015] Preferably, a driven gear is fixedly installed at one end of the trapezoidal lead screw.
[0016] Compared with related technologies, the portable assembly / disassembly device with elastic split structure provided by this utility model has the following advantages:
[0017] This utility model provides a portable disassembly and assembly device with an elastic split structure. By adjusting the crank handle, the force is transmitted to the linkage mechanism through the trapezoidal lead screw. The instability and easy deformation of the parallelogram are used to tighten the spring, realizing disassembly and assembly without external force. This device has a simple structure and strong practicality. The spring is tightened by raising and lowering the parallelogram linkage mechanism. The trapezoidal lead screw provides power and achieves slow raising and lowering with a small force. At the same time, it has a certain degree of self-locking to ensure safety during the disassembly and assembly process. Attached Figure Description
[0018] Figure 1 A schematic diagram of the first embodiment of a portable disassembly and assembly device with an elastic split structure provided by this utility model;
[0019] Figure 2 for Figure 1 The diagram shows a side view of the upper fixing block.
[0020] Figure 3 for Figure 1 The diagram shows a side view of the lower fixing block.
[0021] Figure 4 A schematic diagram of the second embodiment of a portable disassembly and assembly device with an elastic split structure provided by this utility model;
[0022] Figure 5 for Figure 4 The enlarged schematic diagram at point A is shown.
[0023] The following are the labels in the diagram: 1. Right support frame, 2. Right fixing block of lead screw, 3. Left support frame, 4. Guide rod, 5. Thrust ball bearing seat, 6. Trapezoidal lead screw, 7. Upper fixing block, 8. Lower fixing block, 9. Screw pin, 10. Non-removable screw, 11. Handle, 12. Fixing plate, 13. Driven gear, 14. Driving component, 15. Drive gear, 16. Threaded hole, 17. Stud, 18. Adjusting block. Detailed Implementation
[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0025] First Embodiment
[0026] Please refer to the following: Figure 1 , Figure 2 and Figure 3 ,in, Figure 1 A schematic diagram of the first embodiment of a portable disassembly and assembly device with an elastic split structure provided by this utility model; Figure 2 for Figure 1 The diagram shows a side view of the upper fixing block. Figure 3 for Figure 1 The diagram shows a side view of the lower fixing block.
[0027] A portable assembly and disassembly device with an elastic split structure includes: a lower fixing block 8 and a screw pin 9;
[0028] The right support frame 1 is rotatably mounted on both sides of the outer surface of the lower fixing block 8 by screws and pins 9. The other two sides of the outer surface of the lower fixing block 8 are rotatably mounted with left support frame 3 by screws and pins 9. The other side of the right support frame 1 and the left support frame 3 are rotatably mounted with upper fixing block 7 by screws and pins 9.
[0029] A trapezoidal lead screw 6 is disposed between the left support frame 3 and the right support frame 1, and guide rods 4 are provided on both sides inside the left support frame 3 and the right support frame 1.
[0030] The right fixing block 2 of the lead screw is fixedly installed at one end of the guide rod 4, and a crank handle 11 is fixedly connected to one end of the trapezoidal lead screw 6.
[0031] One end of the trapezoidal lead screw 6 is rotatably mounted in the middle of the right fixed block 2 of the lead screw via a deep groove ball bearing.
[0032] The lower fixing block 8 is provided with non-removable screws 10 on all four sides of its surface.
[0033] The upper fixing block 7 is provided with cross-slot countersunk screws on all four sides of its surface.
[0034] Two right support frames 1 are rotatably connected to form a set of support arms via a rotating shaft. The top and bottom of the two right support frames 1 are rotatably connected to the outer surfaces of the upper fixed block 7 and the lower fixed block 8 via rotating shafts, respectively. The two sets are rotatably installed on both sides of the outer surfaces of the upper fixed block 7 and the lower fixed block 8.
[0035] The two left support frames 3 are rotatably connected by a rotating shaft. The top and bottom of the two left support frames 3 are respectively rotatably connected to the two sides of the outer surface of the upper fixed block 7 and the lower fixed block 8 by the rotating shaft.
[0036] Two right support frames 1 are connected by a connecting rod block at a rotating joint. The connecting rod block is threaded onto the outer surface of the trapezoidal screw 6. As the trapezoidal screw 6 rotates, the threaded connecting rod block pulls the two right support frames 1 to adjust the angle between them.
[0037] Two sets of right support frames 1 and two sets of left support frames 3 are respectively installed on both sides of the outer surface of the upper fixed block 7 and the lower fixed block 8, forming a quadrilateral. The connection is rotatably connected by a rotating shaft, which is unstable.
[0038] The working principle of the portable assembly / disassembly device with elastic split structure provided by this utility model is as follows:
[0039] When in operation, first turn the crank 11. The rotation of the crank 11 drives the trapezoidal lead screw 6 to rotate through the bearing seat. The trapezoidal lead screw 6 transmits the force to the linkage mechanism. Utilizing the instability and deformability of the parallelogram, the right support frame 1 and the left support frame 3 contract or expand, thus tightening the spring.
[0040] Compared with related technologies, the portable assembly / disassembly device with elastic split structure provided by this utility model has the following advantages:
[0041] This utility model provides a portable disassembly and assembly device with an elastic split structure. By adjusting the crank handle 11, the trapezoidal lead screw 6 is driven to transmit the force to the linkage mechanism. The instability and easy deformation of the parallelogram are used to tighten the spring, realizing disassembly and assembly without external force. This device has a simple structure and strong practicality. The spring is tightened by raising and lowering the parallelogram linkage mechanism. The trapezoidal lead screw 6 provides power and achieves slow raising and lowering with a small force. At the same time, it has a certain degree of self-locking to ensure safety during the disassembly and assembly process.
[0042] Second Embodiment
[0043] Please refer to the following: Figure 4 and Figure 5Based on the first embodiment of this application, which provides a portable assembly / disassembly device with an elastic split structure, the second embodiment of this application proposes another portable assembly / disassembly device with an elastic split structure. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.
[0044] Specifically, the second embodiment of this application provides a portable disassembly and assembly device with an elastic split structure, which differs in that the outer surface of the guide rod 4 is provided with a plurality of threaded holes 16 at equal intervals, the threaded holes 16 are threaded with studs 17, and an adjustment block 18 is fixedly installed in the middle of the top of the studs 17.
[0045] A fixing plate 12 is fixedly installed at the bottom of the right fixing block 2 of the lead screw, and a driving component 14 is fixedly installed on one side of the surface of the fixing plate 12. The output shaft end of the driving component 14 is fixedly connected to a drive gear 15.
[0046] One end of the trapezoidal lead screw 6 is fixedly equipped with a driven gear 13.
[0047] The drive unit 14 adopts a servo motor structure, and the driving gear 15 and the driven gear 13 mesh with each other.
[0048] Multiple threaded holes 16 are equidistantly distributed, with each threaded hole 16 spaced two centimeters apart.
[0049] The working principle of the portable assembly / disassembly device with elastic split structure provided by this utility model is as follows:
[0050] During operation, first adjust block 18 rotates stud 17. The thread of stud 17 engages inside threaded hole 16. Stud 17 restricts the rotation angle of right support frame 1 and left support frame 3 to prevent the tension from exceeding the strength of disassembly spring.
[0051] The output shaft of the drive component 14 rotates, which drives the drive gear 15 to rotate. The rotation of the drive gear 15 meshes with the driven gear 13 to rotate, and the rotation of the driven gear 13 drives the trapezoidal lead screw 6 to rotate.
[0052] Compared with related technologies, the portable assembly / disassembly device with elastic split structure provided by this utility model has the following advantages:
[0053] This utility model provides a portable disassembly and assembly device with an elastic split structure. By opening multiple threaded holes 16 at equal intervals on the surface of the guide rod 4, and using studs 17 installed inside the threaded holes 16, the height of the support frame folding is limited to avoid excessive folding. It has the effect of pre-limiting the tension of the spring and has a self-locking effect, which improves the safety and practicality of the device disassembly. The automatic control of the rotation adjustment of the trapezoidal screw 6 replaces the manual crank handle 11, reducing the labor intensity of the operator.
[0054] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A portable assembly / disassembly device with an elastic split structure, characterized in that, include: Lower fixing block and screw pin; A right support frame is rotatably mounted on both sides of the outer surface of the lower fixed block by screws and pins. A left support frame is rotatably mounted on the other two sides of the outer surface of the lower fixed block by screws and pins. An upper fixed block is rotatably mounted on the other side of the right and left support frames by screws and pins. A trapezoidal lead screw is disposed between the left support frame and the right support frame, and guide rods are provided on both sides inside the left support frame and the right support frame; A right-side fixing block for the lead screw is fixedly installed at one end of the guide rod, and a crank handle is fixedly connected to one end of the trapezoidal lead screw.
2. The portable disassembly and assembly device with elastic split structure according to claim 1, characterized in that, One end of the trapezoidal lead screw is rotatably mounted in the middle of the right fixed block of the lead screw via a deep groove ball bearing.
3. A portable assembly / disassembly device with an elastic split structure according to claim 1, characterized in that, The lower fixing block is equipped with screws that do not come out on all four sides of its surface.
4. A portable assembly / disassembly device with an elastic split structure according to claim 1, characterized in that, The upper fixing block is provided with cross-slot countersunk screws on all four sides of its surface.
5. A portable assembly / disassembly device with an elastic split structure according to claim 1, characterized in that, The outer surface of the guide rod is provided with multiple threaded holes at equal intervals. The internal threads of the threaded holes are engaged with studs, and an adjustment block is fixedly installed at the top center of the studs.
6. A portable assembly / disassembly device with an elastic split structure according to claim 1, characterized in that, A fixing plate is fixedly installed at the bottom of the right fixing block of the lead screw, and a driving component is fixedly installed on one side of the surface of the fixing plate. A drive gear is fixedly connected to the end of the output shaft of the driving component.
7. A portable assembly / disassembly device with an elastic split structure according to claim 1, characterized in that, A driven gear is fixedly installed at one end of the trapezoidal lead screw.