Composite extension spring
By adopting a composite structure of gears and protective shells in the tensile spring, the problem of lack of storage protection and short service life of the spring body is solved, and the spring is well adjusted and disassembled convenient, extending service life.
Patent Information
- Application Number
- CN202420805787.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-18
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-04-18
AI Technical Summary
The existing tensile springs lack storage protection function, have a short service life, and the positioning position of the positioning nut is inconvenient to remove.
The composite structure of gears and protective shells is adopted, and the spring main body is well adjusted and stored through components such as racks, guide wheel groups, rail plates, and adjustment plates, and the installation and disassembly of the screw are simplified.
It extends the service life of the spring body, improves the practicality and convenience of the structure, and realizes the function of the spring when used.
Smart Images
Figure CN222163351U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a composite extension spring, belonging to the technical field of springs. Background Art
[0002] A spring is a mechanical part that uses elasticity to work. Parts made of elastic materials deform under external force and return to their original shape after the external force is removed. Springs are generally made of spring steel. There are many types of springs. According to their shapes, they mainly include helical springs, scroll springs, leaf springs, special-shaped springs, etc. Among them, the most common and most commonly used is the helical spring.
[0003] Chinese patent number: CN219809318U, mentions a tension spring, by setting joints at both ends of the spring body, the spring body includes a close-fitting part, a gap part connected to the two ends of the close-fitting part, the joint includes a threaded part matching the gap part, and a connecting part for installing the entire spring. The production and processing of the utility model is more convenient and efficient, and the applicability is better, but this device lacks the storage and protection function for the spring body, the service life of the spring body is general, and the setting position of the positioning nut is not convenient for removing the screw. Now there is an urgent need for a composite tension spring to solve the above problems. Utility Model Content
[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a composite tension spring to solve the problems raised in the above-mentioned background technology. The utility model has a reasonable structure and good practicality. By setting a composite structure of gears and protective shells, the position of the spring body can be well adjusted and stored. The installation method of the screw rod is more convenient for disassembly, so that it can be taken out when needed, thereby extending the service life of the spring body.
[0005] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a composite tension spring, comprising a protective shell and a spring body, the left and right sides of the protective shell are respectively penetrated with through holes, the left and right sides of the protective shell are respectively rotatably installed with knobs, the two knobs are respectively concentric with the two through holes, the middle parts of the relative inner sides of the two knobs are respectively fixed with connecting shafts, the relative inner ends of the two connecting shafts are respectively fixed with gears, the left and right sides of the protective shell are respectively fixed with guide rail plates, the left and right sides of the protective shell are respectively fixed with side blocks, the top of the spring body is fixed with a first mounting seat, the bottom of the spring body is fixed with a second mounting seat, the middle part of the top of the first mounting seat and the middle part of the bottom of the second mounting seat are respectively screwed with screws, the annular side surface of the second mounting seat is symmetrically installed with fitting blocks about the center, the two fitting blocks are respectively installed with racks on the relative outer sides, the two racks are respectively installed with guide wheel groups on the relative outer sides, the two guide wheel groups are respectively matched with two guide rail plates, and the two racks are respectively meshed with two gears.
[0006] Furthermore, telescopic columns are movably installed relative to the outer sides of the two side blocks, rotating plates are rotatably installed relative to the outer ends of the two telescopic columns, clamping blocks are fixedly connected relative to the outer ends of the two rotating plates, and clamping grooves are opened relative to the outer sides of the two knobs.
[0007] Furthermore, translational cover plates are slidably mounted on the upper and lower sides of the protective shell.
[0008] Furthermore, adjusting circular plates are respectively installed at the outer ends of the two screw rods, hooks are respectively installed at the outer sides of the two adjusting circular plates, and first limiting holes are symmetrically opened on the surfaces of the two adjusting circular plates.
[0009] Furthermore, second limiting holes are symmetrically provided above the first mounting seat and below the second mounting seat.
[0010] Furthermore, the two guide rail plates are connected to the protective shell by bolts.
[0011] The beneficial effects of the utility model: the composite tension spring of the utility model is added with gears, racks, guide wheel sets, guide rail plates, protective shells and adjusting circular plates. Our design improvements and actual use have shown that the device has a reasonable structure and good practicality. By setting the composite structure of gears and protective shells, the position of the spring body has a good adjustment and storage effect, and the installation method of the screw rod is more convenient for disassembly, so that it can be taken and used at any time, thereby extending the service life of the spring body. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:
[0013] Figure 1 It is a three-dimensional schematic diagram of the overall structure of a composite tension spring of the utility model;
[0014] Figure 2 This is a three-dimensional schematic diagram of the internal structure of a protective shell of a composite tension spring of the utility model;
[0015] Figure 3 It is a three-dimensional schematic diagram of the spring body installation position structure of a composite tension spring of the utility model;
[0016] Figure 4 It is a three-dimensional schematic diagram of the cross-sectional structure of a composite tension spring of the utility model;
[0017] In the figure: 1-protective shell, 2-translational cover, 3-knob, 4-clamping block, 5-side block, 6-telescopic column, 7-rotating plate, 8-clamping groove, 9-guide plate, 10-through hole, 11-first mounting seat, 12-adjusting circular plate, 13-hook, 14-first limiting hole, 15-second limiting hole, 16-rack, 17-guide wheel group, 18-fitting block, 19-second mounting seat, 20-screw, 21-spring body, 22-gear, 23-connecting shaft. DETAILED DESCRIPTION
[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0019] See also Figure 1-Figure 4 The utility model provides a technical solution: a composite tension spring, including a protective shell 1 and a spring body 21, through holes 10 are respectively opened on the left and right sides of the protective shell 1, knobs 3 are rotatably installed on the left and right sides of the protective shell 1, the two knobs 3 are respectively concentric with the two through holes 10, the two knobs 3 are respectively fixed with connecting shafts 23 at the middle of the inner sides relative to each other, and the two connecting shafts 23 are respectively fixed with gears 22 at the inner ends relative to each other, guide plates 9 are respectively fixedly connected to the left and right sides of the protective shell 1, side blocks 5 are respectively fixedly connected to the left and right sides of the protective shell 1, a first mounting seat 11 is fixedly connected to the top of the spring body 21, and a first mounting seat 11 is fixedly connected to the bottom of the spring body 21. Two mounting seats 19, the middle part above the first mounting seat 11 and the middle part below the second mounting seat 19 are respectively screwed with screws 20, the annular side surface of the second mounting seat 19 is symmetrically installed with fitting blocks 18 about the center, the two fitting blocks 18 are respectively installed with racks 16 on the relatively outer sides, the two racks 16 are respectively installed with guide wheel groups 17 on the relatively outer sides, the two guide wheel groups 17 are respectively matched with the two guide rail plates 9, and the two racks 16 are respectively meshed and connected with the two gears 22. This design solves the problems that the original device lacks the storage and protection function for the spring body, the service life of the spring body is average, and the setting position of the positioning nut is not convenient for removing the screw.
[0020] As the first embodiment of the utility model: the two side blocks 5 are movably installed with telescopic columns 6 relative to the outer sides, the two telescopic columns 6 are rotatably installed with rotating pieces 7 relative to the outer ends, the two rotating pieces 7 are fixedly connected with clamping blocks 4 relative to the outer ends, and the two knobs 3 are respectively provided with clamping grooves 8 relative to the outer sides. The rotating pieces 7 are provided to facilitate the adjustment of the angle of the clamping block 4, the telescopic columns 6 are provided to facilitate the movement of the clamping block 4, and the cooperation between the clamping block 4 and the clamping groove 8 facilitates the limiting of the knob 3.
[0021] The upper and lower sides of the protective shell 1 are slidably installed with translation cover plates 2. The two translation cover plates 2 are arranged to facilitate the sealing of the protective shell 1. Adjustment circular plates 12 are respectively installed at the opposite outer ends of the two screw rods 20. Hooks 13 are respectively installed at the opposite outer sides of the two adjustment circular plates 12. The surfaces of the two adjustment circular plates 12 are symmetrically penetrated with first limiting holes 14. The adjustment circular plates 12 are arranged to facilitate the rotation of the screw rods 20. The hooks 13 are arranged to facilitate the hanging of objects. Second limiting holes 15 are symmetrically arranged above the first mounting seat 11 and below the second mounting seat 19. The screw rods 20 can be limited by the cooperation of the first limiting hole 14 and the second limiting hole 15 and by inserting an external pin therein. The two guide rail plates 9 are connected to the protective shell 1 by bolts. This connection method facilitates the maintenance and replacement of the guide rail plates 9.
[0022] As a second embodiment of the utility model: when in use, first open the upper translation cover plate 2, and then pull the two clamping blocks 4. At this time, the corresponding telescopic columns 6 are extended, so that the two clamping blocks 4 are respectively disengaged from the two clamping grooves 8, and then the two clamping blocks 4 are rotated, the two rotating plates 7 are rotated, and the two clamping blocks 4 are adjusted to a suitable angle, and then the two knobs 3 are rotated. At this time, the two gears 22 rotate and drive the corresponding racks 16 to move up, and the corresponding guide wheel groups 17 roll on the corresponding guide rail plates 9, so that the second mounting seat 19 moves up, and then the two screws 20 are tightened by adjusting the circular plate 12, and then the external pin is passed through the first limiting hole 14 and inserted into the second limiting hole 15, so that the adjusting circular plate 12 can be limited to prevent the two screws 20 from loosening, and then the hook 13 can be used to hang objects for use.
[0023] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.
[0024] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A composite tension spring, comprising a protective shell (1) and a spring body (21), characterized in that: The left and right sides of the protective shell (1) are respectively penetrated with through holes (10); the left and right sides of the protective shell (1) are respectively rotatably mounted with knobs (3); the two knobs (3) are respectively concentric with the two through holes (10); the middle parts of the inner sides of the two knobs (3) are respectively fixed with connecting shafts (23); the inner ends of the two connecting shafts (23) are respectively fixed with gears (22); the left and right sides of the protective shell (1) are respectively fixed with guide rail plates (9); and the left and right sides of the protective shell (1) are respectively fixed with side blocks (5); A first mounting seat (11) is fixedly connected above the spring body (21), and a second mounting seat (19) is fixedly connected below the spring body (21). A screw rod (20) is screwed in the middle of the upper part of the first mounting seat (11) and the middle of the lower part of the second mounting seat (19), respectively. A fitting block (18) is symmetrically installed on the annular side surface of the second mounting seat (19) about the center. Racks (16) are respectively installed on the relative outer sides of the two fitting blocks (18), and guide wheel groups (17) are respectively installed on the relative outer sides of the two racks (16). The two guide wheel groups (17) are respectively matched with two guide rail plates (9), and the two racks (16) are respectively meshed and connected with two gears (22).
2. A composite tension spring according to claim 1, characterized in that: Telescopic columns (6) are movably mounted on the outer sides of the two side blocks (5); rotating plates (7) are rotatably mounted on the outer ends of the two telescopic columns (6); clamping blocks (4) are fixedly mounted on the outer ends of the two rotating plates (7); and clamping grooves (8) are provided on the outer sides of the two knobs (3).
3. A composite tension spring according to claim 1, characterized in that: Translational cover plates (2) are slidably mounted on the upper and lower sides of the protective shell (1).
4. A composite tension spring according to claim 1, characterized in that: Adjustment circular plates (12) are respectively installed at the opposite outer ends of the two screw rods (20), hooks (13) are respectively installed at the opposite outer sides of the two adjustment circular plates (12), and first limiting holes (14) are respectively symmetrically opened through the surfaces of the two adjustment circular plates (12).
5. A composite tension spring according to claim 1, characterized in that: Second limiting holes (15) are symmetrically provided above the first mounting seat (11) and below the second mounting seat (19).
6. A composite tension spring according to claim 1, characterized in that: The two guide rail plates (9) are connected to the protective shell (1) via bolts.