A closed air resistance boom

Abstract

The present invention discloses a closed air resistance suspension rod, wherein the pull rod device is composed of a pull rod body, a limit plate and a connecting bent rod, wherein the top of the pull rod body is fixedly connected to the limit plate, and the bottom of the pull rod body is fixedly connected to the connecting bent rod. The present invention can provide a certain shock-absorbing effect for the entire suspension rod by arranging a spring and the friction between the rubber block and the inner wall of the shell, and the interior of the entire shell is in a vacuum state, which can also present an air damping effect when the spring acts, so that the suspension rod can be used in two states of shock absorption; and the second through hole arranged on the surface of the rubber block can balance the vacuum pressure inside the shell, preventing the pressure inside the shell from changing when the rubber block moves with the pull rod body, so that the pressure squeezes the rubber block, causing the rubber block to be offset or damaged.

Description

Technical Field

[0001] The invention relates to a suspension rod, in particular to a closed air resistance suspension rod. Background Art

[0002] At present, the washing machine suspension system adopts internal spring shock absorption, and utilizes the friction resistance and air resistance between the compression spring and the shock-absorbing rubber seat in the component and the inner wall of the damping sleeve to absorb the vibration of the washing machine, so as to achieve the shock absorption effect of the washing machine during the dehydration process.

[0003] However, the existing closed air resistance boom is sealed inside when working. Therefore, the internal spring and the boom will move up and down during use, resulting in different air pressures inside the boom, which can easily cause deformation of the internal spring seat, thereby affecting the shock absorption effect. For this reason, we propose a closed air resistance boom. Summary of the invention

[0004] The object of the present invention is to provide a closed air resistance boom to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a closed air resistance suspension rod, including a pull rod device, a limit sleeve, a resistance sleeve, a sealing cover and a gasket, the pull rod device is composed of a pull rod body, a limit plate and a connecting bent rod, the top of the pull rod body is fixedly connected to the limit plate, the bottom of the pull rod body is fixedly connected to the connecting bent rod, the limit sleeve is composed of a first limit block, a first through hole and a limit groove, the surface of the first limit block is penetrated by a first through hole, the surface of the first limit block and the position corresponding to the first through hole are provided with a raised limit groove, the resistance sleeve is composed of an outer shell, a limit tube, a first spring seat, a second spring seat and a spring, the bottom of the outer shell is fixedly connected to the limit tube, the top of the outer shell is provided with a sealing cover, and the inner shell is provided with a seal. A first spring seat is fixedly installed at the bottom of the wall and corresponding to the position of the limiting tube, second spring seats are arranged on both sides of the inner wall of the outer shell, the outer wall of the second spring seat and the inner wall of the outer shell slide with each other, a spring is arranged inside the outer shell, the bottom of the spring is sleeved on the outer surface of the first spring seat, the top of the spring is sleeved on the bottom of the second spring seat, the top of the pull rod body passes through the interior of the limiting tube, the interior of the first spring seat, the inner wall of the spring and the interior of the second spring seat in sequence and extends to the top of the second spring seat, the limiting plate at the top of the pull rod body overlaps the top of the second spring seat, the bottom of the pull rod body passes through the first through hole on the surface of the first limiting block and extends to the bottom of the first limiting block, and the connecting bent rod fixedly connected to the bottom of the pull rod body is clamped in the interior of the limiting groove.

[0006] Preferably, the second spring seat is composed of a rubber block, a second limit block and a second through hole, the bottom of the rubber block is fixedly connected with a raised second limit block, the surface of the rubber block is penetrated by symmetrically distributed second through holes, the top of the inner wall of the spring is sleeved on the outer surface of the second limit block, the top of the pull rod body passes through the interior of the second limit block and extends to the top of the rubber block, and the limit plate fixedly connected to the top of the pull rod body overlaps the top of the rubber block.

[0007] Preferably, a gasket is sleeved on the outer surface of the limiting tube, and the gasket is made of rubber material.

[0008] Preferably, the outer wall of the rubber block fits with the inner wall of the outer shell.

[0009] Preferably, a rubber pad is provided on the inner wall of the limiting tube, and the provision of the rubber pad forms a vacuum state inside the housing.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. The present invention can provide a certain shock-absorbing effect for the entire suspension rod by setting the friction between the spring and the rubber block and the inner wall of the shell, and the interior of the entire shell is in a vacuum state, which can also present the effect of air damping when the spring acts, so that the suspension rod can be used in two states of shock absorption;

[0012] 2. The second through hole arranged on the surface of the rubber block can balance the vacuum pressure inside the shell, thereby preventing the pressure inside the shell from changing when the rubber block moves with the pull rod body, thereby causing the pressure to squeeze the rubber block and cause the rubber block to deviate or be damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view structural schematic diagram of the present invention;

[0014] Figure 2 It is a front view structural schematic diagram of the pull rod device of the present invention;

[0015] Figure 3 This is a schematic diagram of the top view structure of the limit sleeve of the present invention;

[0016] Figure 4 It is a front view cross-sectional structural schematic diagram of the present invention;

[0017] Figure 5 It is a schematic diagram of the top view structure of the second spring seat of the present invention.

[0018] In the figure: 1 pull rod device, 2 limit sleeve, 3 resistance sleeve, 4 sealing cover, 5 gasket, 6 pull rod body, 7 limit plate, 8 connecting bent rod, 9 first limit block, 10 first through hole, 11 limit groove, 12 shell, 13 limit tube, 14 first spring seat, 15 second spring seat, 16 spring, 17 rubber block, 18 second limit block, 19 second through hole. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-5 The present invention provides a technical solution: a closed air resistance suspension rod, including a pull rod device 1, a limiting sleeve 2, a resistance sleeve 3, a sealing cover 4 and a gasket 5, the pull rod device 1 is composed of a pull rod body 6, a limiting sheet 7 and a connecting bent rod 8, the top of the pull rod body 6 is fixedly connected to the limiting sheet 7, the bottom of the pull rod body 6 is fixedly connected to the connecting bent rod 8, the limiting sleeve 2 is composed of a first limiting block 9, a first through hole 10 and a limiting groove 11, the surface of the first limiting block 9 is penetrated by a first through hole 10, and a raised limiting groove 11 is opened on the surface of the first limiting block 9 and corresponding to the position of the first through hole 10, the resistance sleeve 3 is composed of a shell 12, a limiting tube 13, a first spring seat 14, a second spring seat 15 and a spring 16, the bottom of the shell 12 is fixedly connected to the limiting tube 13, the top of the shell 12 is sealed with a sealing cover 4, the bottom of the inner wall of the shell 12 A first spring seat 14 is fixedly installed at the position corresponding to the limiting tube 13, and second spring seats 15 are arranged on both sides of the inner wall of the outer shell 12, and the outer wall of the second spring seat 15 slides with the inner wall of the outer shell 12. A spring 16 is arranged inside the outer shell 12, and the bottom of the spring 16 is sleeved on the outer surface of the first spring seat 14, and the top of the spring 16 is sleeved on the bottom of the second spring seat 15. The top of the pull rod body 6 passes through the interior of the limiting tube 13, the interior of the first spring seat 14, the inner wall of the spring 16 and the interior of the second spring seat 15 in sequence and extends to the top of the second spring seat 15. The limiting piece 7 at the top of the pull rod body 6 is overlapped on the top of the second spring seat 15, and the bottom of the pull rod body 6 passes through the first through hole 10 on the surface of the first limiting block 9 and extends to the bottom of the first limiting block 9. The connecting bent rod 8 fixedly connected to the bottom of the pull rod body 6 is clamped in the interior of the limiting groove 11.

[0021] Preferably, the second spring seat 15 is composed of a rubber block 17, a second limit block 18 and a second through hole 19, the bottom of the rubber block 17 is fixedly connected with a raised second limit block 18, the surface of the rubber block 17 is penetrated with symmetrically distributed second through holes 19, the top of the inner wall of the spring 16 is sleeved on the outer surface of the second limit block 18, the top of the pull rod body 6 passes through the interior of the second limit block 18 and extends to the top of the rubber block 17, and the limit plate 7 fixedly connected to the top of the pull rod body 6 overlaps the top of the rubber block 17.

[0022] Preferably, a gasket 5 is sleeved on the outer surface of the limiting tube 13, and the gasket 5 is made of rubber material.

[0023] Preferably, the outer wall of the rubber block 17 fits with the inner wall of the outer shell 12. The fitting outer wall of the rubber block 17 and the inner wall of the outer shell 12 can generate a certain friction force with the inner wall of the outer shell 12 when the rubber block 17 is pulled, thereby achieving a certain shock-absorbing effect.

[0024] Preferably, a rubber pad is provided on the inner wall of the limiting tube 13 , and the provision of the rubber pad forms a vacuum state inside the housing 12 .

[0025] When in use, first, the top of the limit sleeve 2 and the bottom of the resistance sleeve 3 are clamped at the clamping position of the washing machine, and then the connecting elbow 8 is clamped into the inside of the limit groove 11. Then, when pressure is generated, the pull rod body 6 will generate tension, and the spring 16 will be clamped into the inside of the first spring seat 14 and the second limit block 18. The generated tension drives the spring 16 inside the shell 12 to expand and contract. At this time, the limit plate 7 fixedly connected to the top of the spring pull rod 6 will drive the rubber block 17 to move up and down along the inner wall of the shell 12, and the up and down movement of the rubber block 17 will generate a certain friction force with the inner wall of the shell 12. When the spring 16 generates elastic force, the friction between the rubber block 17 and the shell 12 will also present a certain resistance. While the interior of the shell 12 is in a vacuum state, the up and down movement of the rubber block 17 will cause the pressure inside the shell 12 to change, and the second through hole 19 set through the surface of the rubber block 17 can balance the pressure inside the shell 12 to prevent the rubber block 17 from shifting due to the change in pressure.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A closed air resistance suspension rod, comprising a pull rod device (1), a limit sleeve (2), a resistance sleeve (3), a sealing cover (4) and a gasket (5), characterized in that: The pull rod device (1) is composed of a pull rod body (6), a limit plate (7) and a connecting bent rod (8); the top of the pull rod body (6) is fixedly connected to the limit plate (7); the bottom of the pull rod body (6) is fixedly connected to the connecting bent rod (8); the limit sleeve (2) is composed of a first limit block (9), a first through hole (10) and a limit groove (11); the surface of the first limit block (9) is penetrated by a first through hole (10); the surface of the first limit block (9) corresponds to A raised limiting groove (11) is provided at the position of the first through hole (10); the resistance sleeve (3) is composed of a shell (12), a limiting tube (13), a first spring seat (14), a second spring seat (15) and a spring (16); the bottom of the shell (12) is fixedly connected to the limiting tube (13); the top of the shell (12) is sealed with a sealing cover (4); the bottom of the inner wall of the shell (12) and the position corresponding to the limiting tube (13) are fixedly installed with the first spring seat (14); ), second spring seats (15) are arranged on both sides of the inner wall of the housing (12), the outer wall of the second spring seat (15) slides with the inner wall of the housing (12), a spring (16) is arranged inside the housing (12), the bottom of the spring (16) is sleeved on the outer surface of the first spring seat (14), the top of the spring (16) is sleeved on the bottom of the second spring seat (15), the top of the pull rod body (6) passes through the interior of the limit tube (13), the first spring seat (14), and the like in sequence. 4), the inner wall of the spring (16) and the inner part of the second spring seat (15) and extends to the top of the second spring seat (15); the limiting piece (7) at the top of the pull rod body (6) overlaps the top of the second spring seat (15); the bottom of the pull rod body (6) passes through the first through hole (10) on the surface of the first limiting block (9) and extends to the bottom of the first limiting block (9); the connecting bent rod (8) fixedly connected to the bottom of the pull rod body (6) is clamped in the inside of the limiting groove (11); The second spring seat (15) is composed of a rubber block (17), a second limiting block (18) and a second through hole (19); the bottom of the rubber block (17) is fixedly connected with a raised second limiting block (18); the surface of the rubber block (17) is penetrated with symmetrically distributed second through holes (19); the top of the inner wall of the spring (16) is sleeved on the outer surface of the second limiting block (18); the top of the pull rod body (6) passes through the interior of the second limiting block (18) and extends to the top of the rubber block (17); the limiting plate (7) fixedly connected to the top of the pull rod body (6) overlaps the top of the rubber block (17); The inner wall of the limiting tube (13) is provided with a rubber pad, and the provision of the rubber pad causes the interior of the outer shell (12) to form a vacuum state.

2. A closed air resistance boom according to claim 1, characterized in that: A gasket (5) is sleeved on the outer surface of the limiting tube (13), and the gasket (5) is made of rubber material.

3. The closed air resistance boom according to claim 1, characterized in that: The outer wall of the rubber block (17) fits the inner wall of the outer shell (12).

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