Adjustable spring convenient to install and combine

Abstract

The invention discloses an adjustable spring convenient to mount and combine, and belongs to the field of damping springs, the adjustable spring comprises a mounting seat, a connecting piece is arranged at the closed end of the mounting seat, a bearing is fixedly connected to the interior of the open end of the mounting seat, an adjusting sleeve is rotatably connected to the bearing, and a threaded rod is in threaded connection with the interior of the adjusting sleeve; a connecting block is fixedly connected to the end, away from the mounting base, of the threaded rod, a sleeve is in threaded connection with the connecting block, a connecting rod is slidably connected into the sleeve, a spring is arranged on the outer wall, located in the sleeve, of the connecting rod, and an adjusting assembly is arranged on the outer wall, close to the adjusting sleeve, of the mounting base. Under the combined action of the connector, the connecting block, the sleeve and the connecting rod, the spring and the connecting rod are inserted from the opening position of the limiting sliding groove in the sleeve, then the sleeve and the connecting block are in threaded connection, assembling can be completed, a labor-saving structure is formed through the arrangement of the adjusting assembly and the cooperation of the driving gear and the fluted disc, and assembling is convenient. Therefore, the rigidity of the spring can be adjusted more easily.

Description

Technical Field

[0001] The invention relates to the technical field of shock absorbing springs, and in particular to an adjustable spring which is easy to install and assemble. Background Art

[0002] The vibration damping spring is a commonly used elastic element that can absorb and dissipate mechanical vibration and impact energy, effectively reduce the vibration and noise of the equipment, and improve the stability and service life of the equipment. When acting on a simple boom, it can improve the stability of the boom during rotation and hoisting. When in use, it is necessary to adjust the preload of the spring by rotating the adjusting ring at the bottom according to the actual situation;

[0003] When adjusting the spring preload force of the existing damping spring, it is necessary to first remove the screws used to tighten the adjustment ring, and then rotate the adjustment ring by hand. The adjustment process is cumbersome. When increasing the preload force, it is necessary to squeeze the spring through the adjustment ring. However, the stiffness of the damping spring used for the simple boom is relatively high, which makes it difficult to adjust.

[0004] Meanwhile, the internal spring of the damping spring needs to be replaced after long-term use, but the existing damping spring needs to be disassembled and assembled using tools such as screwdrivers, which makes assembly inconvenient. Summary of the invention

[0005] The purpose of the present invention is to solve the problem of inconvenient adjustment and assembly of the shock absorbing spring in the prior art, and to propose an adjustable spring which is easy to install and assemble.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] An adjustable spring that is easy to install and assemble, comprising a mounting seat, a connecting piece is arranged at one closed end of the mounting seat, a bearing is fixedly connected inside the open end of the mounting seat, an adjusting sleeve is rotatably connected at the bearing, a threaded rod is threadedly connected inside the adjusting sleeve, a connecting block is fixedly connected at one end of the threaded rod away from the mounting seat, a sleeve is threadedly connected at the connecting block, a connecting rod is slidably connected inside the sleeve, a spring is arranged at the outer wall of the connecting rod located inside the sleeve, and an adjusting component for adjusting the preload force is arranged at the outer wall of the mounting seat near the adjusting sleeve;

[0008] The adjustment assembly includes a shell, which is fixedly connected to the mounting seat. A first mounting groove and a second mounting groove are provided in the shell. A driving worm is rotatably connected in the first mounting groove, and a limiting worm is rotatably connected in the second mounting groove.

[0009] Preferably, a toothed disc is fixedly connected to the outer wall of the adjustment sleeve facing one end of the sleeve, and the working tooth surface of the toothed disc faces the mounting seat.

[0010] Preferably, limiting sliding grooves are provided on both sides of the sleeve, and the limiting sliding grooves are open toward one side of the mounting seat.

[0011] Preferably, one end of the connecting rod located inside the sleeve is fixedly connected to a limiting slider matching the limiting slide groove, the limiting slider is slidably connected to the limiting slide groove to support the operation of the spring, and one end of the connecting rod located outside the sleeve is provided with a connector.

[0012] Preferably, the size of the connector matches that of the connector.

[0013] Preferably, the first mounting groove is open on both the side facing the toothed disc and the side facing the outside.

[0014] Preferably, a driving gear is fixedly connected to the outer wall of the driving worm corresponding to the opening of the mounting groove, the driving gear is meshed with the gear plate, and a hexagonal protrusion is fixedly connected to one end of the driving worm facing outward.

[0015] Preferably, the limiting worm is engaged with the driving worm to lock the driving worm.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In the present invention, under the joint action of the connector, the connecting block, the sleeve and the connecting rod, it is only necessary to insert the spring and the connecting rod from the opening of the limiting slide groove in the sleeve, and then threading the sleeve and the connecting block to complete the assembly, thereby achieving the effect of easy installation and combination.

[0018] 2. The present invention forms a labor-saving structure by setting an adjustment component and cooperating the driving gear with the toothed disc, so that the stiffness of the spring can be adjusted more easily, thus achieving the effect of easy adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of an adjustable spring that is easy to install and assemble proposed by the present invention;

[0020] Figure 2 A structural cross-sectional view of an adjustable spring that is easy to install and assemble and is in a maximum preload state, as proposed by the present invention;

[0021] Figure 3 A structural cross-sectional view of an adjustable spring that is easy to install and assemble and is in a state of minimum preload force, as proposed by the present invention;

[0022] Figure 4 A schematic diagram of the internal structure of a mounting seat and an adjusting component in an adjustable spring that is easy to install and assemble proposed by the present invention;

[0023] Figure 5A structural assembly diagram of an adjustable spring mounting seat that is easy to assemble and assemble proposed by the present invention;

[0024] Figure 6 The present invention provides a cross-sectional view of the internal structure of an adjustable spring housing that is easy to assemble and assemble.

[0025] In the figure: 1. mounting seat; 2. connecting piece; 3. bearing; 4. adjusting sleeve; 5. threaded rod; 6. connecting block; 7. sleeve; 8. connecting rod; 9. spring; 10. housing; 11. first mounting groove; 12. second mounting groove; 13. driving worm; 14. limiting worm; 15. toothed disc; 16. limiting slide groove; 17. limiting slide block; 18. connecting head; 19. driving gear; 20. bump. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Example, see Figures 1 to 6, an adjustable spring that is easy to install and assemble, including a mounting seat 1, a connecting piece 2 is provided at a closed end of the mounting seat 1, a bearing 3 is fixedly connected inside the open end of the mounting seat 1, an adjusting sleeve 4 is rotatably connected at the bearing 3, a threaded rod 5 is internally threadedly connected to the adjusting sleeve 4, a connecting block 6 is fixedly connected to the end of the threaded rod 5 away from the mounting seat 1, a sleeve 7 is threadedly connected at the connecting block 6, a connecting rod 8 is slidably connected inside the sleeve 7, a spring 9 is provided at the outer wall of the connecting rod 8 located inside the sleeve 7, and an adjusting component for adjusting the preload force is provided at the outer wall of the mounting seat 1 near the adjusting sleeve 4;

[0030] The adjustment assembly includes a shell 10, which is fixedly connected to the mounting seat 1. A first mounting groove 11 and a second mounting groove 12 are provided in the shell 10. A driving worm 13 is rotatably connected in the first mounting groove 11, and a limiting worm 14 is rotatably connected in the second mounting groove 12.

[0031] Furthermore, a toothed disc 15 is fixedly connected to the outer wall of the adjusting sleeve 4 facing one end of the sleeve 7, and the working tooth surface of the toothed disc 15 faces the mounting seat 1, so that the toothed disc 15 can drive the adjusting sleeve 4 to rotate;

[0032] Furthermore, the sleeve 7 is provided with limited sliding grooves 16 on both sides, and the limited sliding grooves 16 are open toward one side of the mounting seat 1, so that the limited sliding block 17 can slide in the sleeve 7 and be taken out from the sleeve 7;

[0033] Furthermore, a limiting slider 17 matching the limiting slide groove 16 is fixedly connected to one end of the connecting rod 8 located inside the sleeve 7, and the limiting slider 17 is slidably connected to the limiting slide groove 16 to support the operation of the spring 9. A connecting head 18 is provided at one end of the connecting rod 8 located outside the sleeve 7, and the size of the connecting head 18 matches the connecting piece 2, so as to support the installation of the present invention into a simple boom in the prior art.

[0034] A further advantage of the above method is that the spring 9 and the connecting rod 8 are inserted from the opening of the limiting slide groove 16 in the sleeve 7, and then the sleeve 7 is threadedly connected to the connecting block 6 to complete the assembly, thereby achieving the effect of facilitating the installation and assembly;

[0035] Furthermore, the first mounting groove 11 is open on both the side facing the toothed disc 15 and the side facing the outside, so that the driving gear 19 can mesh with the toothed disc 15 and the protrusion 20 is exposed to the outside;

[0036] Furthermore, a driving gear 19 is fixedly connected to the outer wall of the driving worm 13 corresponding to the opening of the installation groove, and the driving gear 19 is meshed with the toothed disc 15. A hexagonal protrusion 20 is fixedly connected to one end of the driving worm 13 facing the outside.

[0037] It should be noted that the size of the driving gear 19 is smaller than the gear disc 15, so as to form a labor-saving structure;

[0038] A further advantage of adopting the above is that, through the cooperation between the driving gear 19 and the toothed disc 15, a labor-saving structure can be formed, and the driving gear 19 can drive the toothed disc 15 to drive the adjusting sleeve 4 to rotate, and through the adjusting sleeve 4, the connecting rod 8 and the sleeve 7 are driven to extend and retract, so that the stiffness of the spring 9 can be adjusted more easily, achieving the effect of easy adjustment;

[0039] Furthermore, the limiting worm 14 is meshed with the driving worm 13 , and after the adjustment is completed, the driving worm 13 can be locked by the self-locking property of the limiting worm 14 , thereby ensuring stability during use.

[0040] When the present invention is installed and assembled, the spring 9 is inserted from the end of the connecting rod 8 provided with the connecting head 18 until it contacts the limiting slider 17, the end of the connecting rod 8 provided with the connecting head 18 is inserted into the sleeve 7 and the position of the limiting slider 17 is manually adjusted so that the limiting slider 17 is located in the limiting slide groove 16, and the connecting head 18 and the connecting member 2 are aligned under the action of the limiting slider 17, and finally the open end of the sleeve 7 is manually threadedly connected to the connecting block 6 to complete the assembly, thereby achieving the effect of facilitating the installation and assembly;

[0041] When adjusting, the present invention uses the sleeve 7 wrench in the prior art to engage the protrusion 20 and rotate it counterclockwise, so that the driving worm 13 drives the driving gear 19 to rotate synchronously, and the toothed disc 15 is driven to rotate by the driving gear 19, and the adjusting sleeve 4 is driven to rotate in the bearing 3 by the toothed disc 15, and at the same time, the threaded rod 5 and the sleeve 7 are driven to translate toward the mounting seat 1 under the action of the adjusting sleeve 4. At this time, the inner wall of the closed side of the sleeve 7 squeezes the spring 9, thereby increasing the preload force of the spring 9. Similarly, after the sleeve 7 wrench is rotated clockwise, the threaded rod 5 and the sleeve 7 are driven to translate away from the mounting seat 1 under the action of the adjusting sleeve 4, thereby releasing the spring 9 to reduce the preload force of the spring 9. Because the size of the driving gear 19 is smaller than the toothed disc 15, a labor-saving structure is formed, so that the stiffness of the spring 9 can be adjusted more easily, and the function of easy adjustment is achieved.

[0042] After the adjustment is completed, the driving worm 13 is locked by the self-locking property of the limiting worm 14 to ensure stability during use.

[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An adjustable spring that is easy to assemble and install, comprising a mounting seat (1), characterized in that: A connecting piece (2) is provided at one closed end of the mounting seat (1); a bearing (3) is fixedly connected inside the open end of the mounting seat (1); an adjusting sleeve (4) is rotatably connected to the bearing (3); a threaded rod (5) is internally threadedly connected to the adjusting sleeve (4); a connecting block (6) is fixedly connected to one end of the threaded rod (5) away from the mounting seat (1); a sleeve (7) is threadedly connected to the connecting block (6); a connecting rod (8) is slidably connected inside the sleeve (7); a spring (9) is provided at the outer wall of the connecting rod (8) located inside the sleeve (7); and an adjusting component for adjusting the preload force is provided at the outer wall of the mounting seat (1) near the adjusting sleeve (4); The adjustment assembly comprises a housing (10), the housing (10) being fixedly connected to a mounting seat (1), a first mounting groove (11) and a second mounting groove (12) being provided in the housing (10), a driving worm (13) being rotatably connected in the first mounting groove (11), and a limiting worm (14) being rotatably connected in the second mounting groove (12).

2. An adjustable spring that is easy to assemble and install according to claim 1, characterized in that: A toothed disc (15) is fixedly connected to the outer wall of the adjustment sleeve (4) at one end facing the sleeve (7), and the working tooth surface of the toothed disc (15) faces the mounting seat (1).

3. The adjustable spring that is easy to assemble and install according to claim 1, characterized in that: Limiting sliding grooves (16) are provided on both sides of the sleeve (7), and the limiting sliding grooves (16) are open toward one side of the mounting seat (1).

4. The adjustable spring that is easy to assemble and install according to claim 3, characterized in that: One end of the connecting rod (8) located inside the sleeve (7) is fixedly connected to a limiting slider (17) matching the limiting slide groove (16); the limiting slider (17) is slidably connected to the limiting slide groove (16) to support the operation of the spring (9); and one end of the connecting rod (8) located outside the sleeve (7) is provided with a connecting head (18).

5. The adjustable spring that is easy to assemble and install according to claim 4, characterized in that: The size of the connecting head (18) matches that of the connecting piece (2).

6. The adjustable spring that is easy to assemble and install according to claim 2, characterized in that: The first mounting groove (11) is open on both the side facing the toothed disc (15) and the side facing the outside.

7. The adjustable spring that is easy to assemble and install according to claim 6, characterized in that: A driving gear (19) is fixedly connected to the outer wall of the driving worm (13) corresponding to the opening of the mounting groove, and the driving gear (19) is meshed with the toothed disc (15). A hexagonal protrusion (20) is fixedly connected to one end of the driving worm (13) facing outward.

8. The adjustable spring that is easy to assemble and install according to claim 1, characterized in that: The limiting worm (14) is meshed with the driving worm (13) and is used to lock the driving worm (13).

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