[0049] Example 1
[0050] Such as Figure 2 to Figure 4 As shown, this embodiment introduces a shock absorber for a washing machine, which includes: a first-stage shock-absorbing rod 1, a second-stage shock-absorbing rod 2, and a third-stage shock-absorbing rod composed of a sleeve structure and inserted in sequence. 3; the lower end of the primary shock absorbing rod 1 is inserted from the upper end of the secondary shock absorbing rod 2, the upper end of the tertiary shock absorbing rod 3 is inserted from the lower end of the secondary shock absorbing rod 2, and the two insertion positions are respectively provided with damping members.
[0051] By arranging shock-absorbing rods composed of a sleeve structure that are inserted into each other in order, the adjacent shock-absorbing rods are radially limited by the insertion point, and the vibration conducted by the water container acts on the shock-absorbing rod insertion In the direction, the damping members at the joints of adjacent shock-absorbing rods are made to absorb and buffer the vibration conducted by the water tank respectively, so as to provide the water tank with a combined form and diversified damping and damping force, thereby reducing the running process of the washing machine The purpose of improving the running stability of the washing machine.
[0052] In this embodiment, the upper end of the first-level shock absorber rod 1 is provided with a first hinge hole 4, and the lower end of the third-level shock absorber rod 2 is provided with a second hinge hole 5; the axes of the first hinge hole 4 and the second hinge hole 5 Both are arranged perpendicular to the extension direction of the shock absorber 100; preferably, the axial directions of the first hinge hole 4 and the second hinge hole 5 are arranged parallel to each other. As a result, the first-level shock-absorbing rod is hinged with the washing machine water tank through the shaft passing through the first hinge hole, and the third-level shock-absorbing rod is hinged with the washing machine base through the shaft passing through the second hinge hole, so that the water tank generates After the vibration is transmitted to the shock absorber, only the axial expansion and contraction can be produced, so that the purpose of buffering and damping the axial expansion and contraction displacement by the damping structure inserted between the shock absorption rods is achieved.
[0053] In this embodiment, the lower end of the secondary shock absorber rod 2 is provided with an annular protrusion 7 that protrudes outward, and the annular protrusion 7 is provided with an annular damping block 10, and the upper end of the tertiary shock absorber rod 3 correspondingly passes through The hollow portion of the ring-shaped damping block 10; preferably, the outer diameter of the ring-shaped damping block 10 is greater than the inner diameter of the second-stage shock absorber rod 2, and is set equal to the inner wall diameter of the annular protrusion 7, and the inner diameter of the ring-shaped damping block 10 is smaller than that of the second-stage shock absorber The inner diameter of the shock rod 2 is set equal to the outer diameter of the upper end of the three-stage shock-absorbing rod 3.
[0054] In this embodiment, the annular damping block 10 is installed in the annular protrusion 7 of the secondary shock absorber 2, and is fixedly installed in the annular protrusion 7 by the upper and lower walls of the annular protrusion 7, so that the annular damping The block 10 cannot move due to its limited position in the axial direction of the shock absorber 100. At the same time, the inner circumferential surface of the ring-shaped damping block 10 is in close contact with the outer wall of the third-stage shock absorber bar 3, and the outer circumferential surface of the ring-shaped damping block 10 is in close contact or fixed connection with the inner wall of the second-stage shock absorber bar 2. The contact surface between 10 and the third-level shock-absorbing rod 3 generates a damping force that restricts relative movement by friction, so that the annular damping block 10 constitutes a damping member. The phase inserting point provides a damping force that limits the mutual axial movement of the two.
[0055] In this embodiment, the outer wall of the primary shock absorber rod 1 is provided with a ring of annular cavity 6 protruding radially outwards, the lower end of the annular cavity 6 is provided with a ring of notches, and the upper end of the secondary shock absorber rod 2 is correspondingly inserted from the notches. Inside the annular cavity 6; the upper end of the secondary shock-absorbing rod 2 is provided with an annular rib 8 that protrudes radially outward and is located in the annular cavity 6. The outer circumference of the annular rib 8 is larger than the outer circumference of the gap; the outer circumference of the annular rib 8 It is in close contact with the inner wall of the annular cavity 6. Preferably, the annular gap is provided at the junction of the lower side wall of the annular cavity 6 and the outer wall of the primary shock-absorbing rod 1, so that the upper end of the secondary shock-absorbing rod 2 inserted with the same outer diameter of the primary shock-absorbing rod 1 can be freely inserted. The notch is inserted into the annular cavity 6 correspondingly.
[0056] In this embodiment, the annular cavity 6 is filled with a damping block that can produce elastic deformation, and the annular rib 8 is fixedly connected to the middle of the damping block to generate a relative relationship between the secondary shock absorber rod 2 and the primary shock absorber rod 1. During the axial movement, the ring rib 8 pushes the damping block to produce a squeezing force between the inner wall of the annular cavity 6, and the squeezing effect is transmitted to the damping block to produce elastic deformation, and then the elastic deformation of the damping block produces a restriction of relative movement The damping force, so that the damping block constitutes a damping member, provides a damping force that restricts the mutual axial movement of the two-stage shock-absorbing rod 2 and the first-stage shock-absorbing rod 1 where they are inserted.
[0057] Preferably, such as Figure 4 As shown, in this embodiment, two damping blocks are provided in the annular cavity 6, the first damping block 91 is arranged between the annular rib 8 and the upper side wall of the annular cavity 6, and the second damping block 92 is arranged on the annular rib 8. Between the lower side wall of the annular cavity 6 and the upper and lower sides of the annular rib 8 each clamps a damping block, respectively, and two different places where the secondary shock absorber rod 2 and the primary shock absorber rod 1 are inserted The directions respectively provide limiting damping force.
[0058] In this embodiment, the upper end of the third-level shock-absorbing rod 3 penetrates into the interior of the second-level shock-absorbing rod 2 from the lower end thereof, passes through the hollow portion of the annular damping block 10, and then extends into the interior of the first-stage shock-absorbing rod 1, and The diameter of the outer wall of the shock absorbing rod 3 is set as large as the diameter of the inner wall of the primary shock absorbing rod 1, so that the upper outer wall of the third shock absorbing rod and the lower inner wall of the first shock absorbing rod are in close contact. By extending the three-stage shock-absorbing rod until inserted into the first-stage shock-absorbing rod, the upper and lower ends of the entire shock-absorbing member are supported and limited respectively by gaps to increase the fixed position of the entire shock-absorbing member, thereby effectively improving the stability of the device .
