Spring seat spring limiting structure

Abstract

The utility model provides a spring seat spring limiting structure which comprises a cover plate, a spring seat, a connecting frame and an external thread cylinder, sliding holes are symmetrically formed in the upper portion of the spring seat, a hydraulic rod is installed above the external thread cylinder, a coupler is installed at the shaft end of the hydraulic rod, a connecting shaft is installed at the other end of the coupler, and a first bearing is installed in the middle of the lower portion of the cover plate. And a second bearing is embedded in the middle of the left side of the connecting frame, and the first inner threaded cylinder is fixedly installed on the inner ring of the second bearing. The design solves the problems that when an original device conducts limiting adjustment on the two half-threaded rods, the steps are tedious, and the operation is inconvenient. According to the utility model, the structure is reasonable, the practicability is good, the characteristic that the inner ring and the outer ring of the bearing rotate asynchronously is utilized, the step of limiting and adjusting the two half threaded rods is simplified, the operation time is saved, the elastic force of the spring can be further adjusted, and the use is convenient.

Description

Technical Field

[0001] The utility model relates to a spring limiting structure of a spring seat, belonging to the technical field of spring seats. Background Art

[0002] A spring is a mechanical part that uses elasticity to work. Parts made of elastic materials deform under the action of external force and return to their original shape after the external force is removed. In some shock absorption systems, springs are usually installed on spring seats to improve the stability of the shock absorption system.

[0003] Chinese Patent No.: CN220505657U mentions a spring seat spring limit structure, through the limit component, the spring on the spring seat can be limited to prevent the spring on the spring seat from shaking during use, resulting in poor use effect, and an adjustment component is added to this mechanism, the elastic force of the spring can be adjusted according to the requirements of use during use, but when this device performs limit adjustment on the two semi-threaded rods, the steps are relatively cumbersome, and the degree of adjustment of the spring elastic force can be further improved. Now there is an urgent need for a spring seat spring limit structure to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a spring seat spring limit structure to solve the problems raised in the above-mentioned background technology. The utility model has a reasonable structure and good practicality. It utilizes the characteristics of asynchronous rotation of the inner and outer rings of the bearing to simplify the steps of limit adjustment of the two semi-threaded rods, saves operation time, and can further adjust the spring force, which is easy to use.

[0005] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a spring seat spring limiting structure, comprising a cover plate, a spring seat, a connecting frame and an externally threaded cylinder, a second internally threaded cylinder is installed in the groove above the spring seat, a sliding hole is symmetrically opened above the spring seat, a hydraulic rod is installed above the externally threaded cylinder, a coupling is installed at the shaft end of the hydraulic rod, a connecting shaft is installed at the other end of the coupling, a first bearing is installed in the middle part below the cover plate, the connecting shaft is connected to the inner ring of the first bearing, the externally threaded cylinder is screwed with the second internally threaded cylinder, a second bearing is embedded in the middle part of the left side of the connecting frame, the first internally threaded cylinder is fixedly installed on the inner ring of the second bearing, a connecting rod is symmetrically installed on the right side of the connecting frame, a bottom cover is welded below the externally threaded cylinder, a bottom plate is installed below the bottom cover, a docking groove is opened below the bottom plate, a spring is installed below the cover plate, and the lower end of the spring is connected to the spring seat.

[0006] Furthermore, guide rods are symmetrically installed below the cover plate, and two guide rods are slidably installed in two sliding holes respectively, and pistons are respectively provided at the lower ends of the two guide rods.

[0007] Furthermore, a first arc block and a second arc block are respectively installed on the annular side surface of the cover plate, the first arc block and the second arc block are symmetrically arranged, a semi-threaded rod is installed under the first arc block, and a connecting rod is installed under the second arc block.

[0008] Furthermore, a first side block is installed on the left side of the spring seat, and a second side block is installed on the right side of the spring seat.

[0009] Furthermore, the semi-threaded rod is slidably connected to the first side block, the connecting rod is slidably connected to the second side block, and a sliding sleeve is slidably mounted on the annular side surface of the connecting rod.

[0010] Furthermore, the two connecting rods are connected to the sliding sleeve, the first internal threaded tube is threadedly connected to the semi-threaded rod, and a square frame is installed below the spring seat.

[0011] The beneficial effects of the utility model: the utility model is a spring seat spring limiting structure, because the utility model adds a first bearing, a second bearing, a first internally threaded cylinder, a second internally threaded cylinder, an externally threaded cylinder and a connecting frame, our design improvement and actual use have shown that the device has a reasonable structure and good practicality. It utilizes the characteristics of asynchronous rotation of the inner and outer rings of the bearing to simplify the steps of limiting adjustment of the two semi-threaded rods, saving operation time, and can further adjust the spring elastic force, which is easy to use. 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 spring seat spring limiting structure of the utility model;

[0014] Figure 2 It is a three-dimensional schematic diagram of the structure below the spring seat of a spring limiting structure of a spring seat of the utility model;

[0015] Figure 3 The utility model is a spring seat spring limiting structure Figure 2 A three-dimensional enlarged schematic diagram of the structure at A;

[0016] Figure 4 The utility model is a spring seat spring limiting structure Figure 2 A three-dimensional enlarged schematic diagram of the structure at B;

[0017] Figure 5 It is a three-dimensional schematic diagram of the structure above the spring seat of a spring limiting structure of the spring seat of the utility model;

[0018] Figure 6 It is a three-dimensional schematic diagram of the installation position structure of the external threaded barrel of a spring seat spring limiting structure of the utility model;

[0019] In the figure: 1-cover plate, 2-first arc block, 3-second arc block, 4-connecting rod, 5-semi-threaded rod, 6-spring, 7-first side block, 8-second side block, 9-sliding sleeve, 10-connecting frame, 11-first internally threaded cylinder, 12-square frame, 13-spring seat, 14-first bearing, 15-guide rod, 16-connecting shaft, 17-coupling, 18-hydraulic rod, 19-sliding hole, 20-bottom plate, 21-bottom cover, 22-second bearing, 23-externally threaded cylinder, 24-second internally threaded cylinder, 25-docking groove. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-Figure 6 The utility model provides a technical solution: a spring seat spring limiting structure, including a cover plate 1, a spring seat 13, a connecting frame 10 and an external threaded tube 23, a second internal threaded tube 24 is installed in the groove above the spring seat 13, a sliding hole 19 is symmetrically opened above the spring seat 13, a hydraulic rod 18 is installed above the external threaded tube 23, a coupling 17 is installed at the shaft end of the hydraulic rod 18, a connecting shaft 16 is installed at the other end of the coupling 17, a first bearing 14 is installed at the middle part below the cover plate 1, the connecting shaft 16 is connected to the inner ring of the first bearing 14, and the external threaded tube 23 is connected to the second internal threaded tube The cylinder 24 is screwed, and a second bearing 22 is embedded in the middle of the left side of the connecting frame 10. The first internal threaded cylinder 11 is fixedly installed on the inner ring of the second bearing 22. A connecting rod 26 is symmetrically installed on the right side of the connecting frame 10. A bottom cover 21 is welded below the external threaded cylinder 23, and a bottom plate 20 is installed below the bottom cover 21. A docking groove 25 is opened below the bottom plate 20. A spring 6 is installed below the cover plate 1, and the lower end of the spring 6 is connected to the spring seat 13. This design solves the problem that when the original device performs limit adjustment on the two semi-threaded rods, the steps are relatively cumbersome, and the degree of adjustment of the spring elastic force can be further improved.

[0022] As the first embodiment of the utility model: guide rods 15 are symmetrically installed below the cover plate 1, and two guide rods 15 are respectively slidably installed in two sliding holes 19, and pistons are respectively provided at the lower ends of the two guide rods 15. The cooperation between the guide rods 15 and the sliding holes 19 improves the stability of the compression spring 6, and the piston is provided to facilitate the improvement of the damping of the guide rods 15 when they slide in the sliding holes 19. The first arc block 2 and the second arc block 3 are respectively installed on the annular side of the cover plate 1, and the first arc block 2 and the second arc block 3 are symmetrically arranged. A semi-threaded rod 5 is installed below the first arc block 2, and a connecting rod 4 is installed below the second arc block 3. A first side block 7 is installed on the left side of the spring seat 13, and a second side block 8 is installed on the right side of the spring seat 13.

[0023] The semi-threaded rod 5 is slidably connected to the first side block 7, the connecting rod 4 is slidably connected to the second side block 8, and a sliding sleeve 9 is slidably installed on the annular side of the connecting rod 4. The cooperation between the semi-threaded rod 5 and the first side block 7 and the cooperation between the connecting rod 4 and the second side block 8 further improves the stability of the spring 6 during operation. Two connecting rods 26 are connected to the sliding sleeve 9, the first internally threaded cylinder 11 is screwed to the semi-threaded rod 5, and a square frame 12 is installed below the spring seat 13, which is screwed to the semi-threaded rod 5 through the first internally threaded cylinder 11, so as to provide a limiting effect for the spring 6.

[0024] As a second embodiment of the utility model: when in use, if the spring 6 is compressed, the semi-threaded rod 5 slides in the first side block 7, and the connecting rod 4 slides in the second side block 8. The semi-threaded rod 5 limits the spring 6 during compression to prevent the spring 6 from shaking during movement, thereby improving the stability of the spring 6, and the two guide rods 15 can play a guiding role. When the limiting distance and retrograde adjustment of the semi-threaded rod 5 are required, the first internally threaded cylinder 11 is rotated, the first internally threaded cylinder 11 is continuously moved up, and then the connecting frame 10 is driven to move up, and the two connecting rods 15 are connected to each other. The connecting rod 26 will drive the sliding sleeve 9 to move upward. When the first internally threaded tube 11 reaches the ideal position, the sliding sleeve 9 is also in the same position as the first internally threaded tube 11. When it is necessary to adjust the elastic force of the spring 6, the hydraulic rod 18 is started to lift or move the cover plate 1 upward, thereby adjusting the telescopic degree of the spring 6 and changing the elastic force. When the adjustment range of the hydraulic rod 18 is limited, an external matching plug rod is used to insert it into the docking groove 25, and the externally threaded tube 23 is rotated to adjust the position of the hydraulic rod 18. The first bearing 14 can ensure that the hydraulic rod 18 rotates smoothly.

[0025] 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.

[0026] 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 spring seat spring limiting structure, comprising a cover plate (1), a spring seat (13), a connecting frame (10) and an externally threaded cylinder (23), characterized in that: A second internally threaded cylinder (24) is installed in the groove above the spring seat (13); a sliding hole (19) is symmetrically opened above the spring seat (13); a hydraulic rod (18) is installed above the externally threaded cylinder (23); a coupling (17) is installed at the shaft end of the hydraulic rod (18); a connecting shaft (16) is installed at the other end of the coupling (17); a first bearing (14) is installed at the middle part below the cover plate (1); the connecting shaft (16) is connected to the inner ring of the first bearing (14); and the externally threaded cylinder (23) is threadedly connected to the second internally threaded cylinder (24); A second bearing (22) is embedded in the middle of the left side of the connecting frame (10), and a first internally threaded cylinder (11) is fixedly installed on the inner ring of the second bearing (22). A connecting rod (26) is symmetrically installed on the right side of the connecting frame (10). A bottom cover (21) is welded below the externally threaded cylinder (23), and a bottom plate (20) is installed below the bottom cover (21). A docking groove (25) is provided below the bottom plate (20). A spring (6) is installed below the cover plate (1), and the lower end of the spring (6) is connected to the spring seat (13).

2. A spring seat spring limiting structure according to claim 1, characterized in that: Guide rods (15) are symmetrically installed below the cover plate (1), and the two guide rods (15) are respectively slidably installed in the two sliding holes (19), and pistons are respectively provided at the lower ends of the two guide rods (15).

3. A spring seat spring limiting structure according to claim 1, characterized in that: A first arc block (2) and a second arc block (3) are respectively installed on the annular side surface of the cover plate (1); the first arc block (2) and the second arc block (3) are symmetrically arranged; a semi-threaded rod (5) is installed below the first arc block (2); and a connecting rod (4) is installed below the second arc block (3).

4. A spring seat spring limiting structure according to claim 1, characterized in that: A first side block (7) is installed on the left side of the spring seat (13), and a second side block (8) is installed on the right side of the spring seat (13).

5. The spring seat spring limiting structure according to claim 3, characterized in that: The semi-threaded rod (5) is slidably connected to the first side block (7), the connecting rod (4) is slidably connected to the second side block (8), and a sliding sleeve (9) is slidably mounted on the annular side surface of the connecting rod (4).

6. A spring seat spring limiting structure according to claim 1, characterized in that: The two connecting rods (26) are connected to the sliding sleeve (9), the first internal threaded tube (11) is threadedly connected to the semi-threaded rod (5), and a square frame (12) is installed below the spring seat (13).

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