Oil buffer

Abstract

The utility model discloses an oil buffer and relates to the technical field of oil buffers. The buffer comprises a buffer body and further comprises a piston rod inserted in one side of the interior of the buffer body, a reset spring is arranged outside the piston rod on one side of the buffer body, an inner pipe is arranged in the buffer body, and a collided head is arranged on one side of the piston rod. The protection assembly is arranged outside the reset spring between one side of the outer portion of the buffer body and one side of the piston rod, and the purpose of protecting the outer portion of the rubber sleeve can be achieved by synchronously screwing and fixing the installation sleeves to the outer portion of the fixing sleeve before the oil pressure buffer is used. The protective rubber sleeve can prevent foreign matters from entering between the reset springs to influence the normal compression of the reset springs and further prevent the buffer from being normally used, and meanwhile prevent dust from falling on the piston rod and being brought into the buffer to pollute hydraulic oil and further to damage the buffer, so that the effect of protecting the piston rod and the reset springs of the buffer is achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to oil pressure buffer technical field, especially relate to an oil pressure buffer. BACKGROUND

[0002] The oil pressure buffer is a device for reducing impact and vibration in mechanical movement by hydraulic principle, which can effectively stop moving objects, reduce vibration and noise, and has been widely used in automatic mechanical operation and automobile production.

[0003] The utility model discloses a kind of oil pressure buffers, including body, piston rod and reset spring and sliding assembly, the hydraulic drive of the body one side is installed with piston rod, the telescopic place of the sliding assembly is movably installed with piston rod, the reset spring is set on the sticking place of the piston rod outside, further include setting, disassembly component, is installed on the body;Grease lubricating component, set on the piston rod, for grease to be telescoped into the inside of oil pressure buffer by piston rod, in the utility model, by V-shaped gear groove is docked and installed in gear V groove inside, V-shaped gear can be sealed on inner sealing base, V-shaped gear and inner sealing base can be removed by dismounting bolt column, change oil pressure buffer adopts conventional welding integrated structure, oil pressure buffer is disassembled and replaced inside, beneficial to oil pressure buffer routine comprehensive maintenance, prevent oil pressure buffer from quick aging in use process.The technical scheme has the technical problems that oil pressure buffer piston rod and reset spring are exposed in working environment in the process of application, other production tools or foreign matters in working environment are prone to jam reset spring and affect its normal buffering, and dust is prone to adhere to piston rod outside and enter buffer, reduce service life of hydraulic oil, even cause buffer damage. UTILITY MODEL CONTENT

[0004] In view of the above-mentioned shortcomings of the prior art, the utility model provides an oil pressure buffer, which can effectively solve the problems of the prior art.

[0005] To solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model discloses an oil pressure buffer, including buffer main part still include: the inside one side of buffer main part inserts piston rod, the piston rod outside buffer main part one side is provided with reset spring, the inside of buffer main part is provided with inner tube, the one side of piston rod is provided with the head that receives the impact, the one side of head is provided with the muffling cover of sleeve joint, buffer main part one side is provided with the installation end cover, the inner tube of piston rod other side is provided with the piston, the outside of reset spring is provided with the protection rubber cover, the both sides of protection rubber cover are provided with the installation sleeve, buffer main part outside one side and the one end outside of piston rod are provided with the fixed sleeve, the one side of piston rod and the other side of head between are provided with the detachable movable assembly.

[0007] Further, the installation sleeve inner diameter is greater than the buffer main part diameter, the inside of installation sleeve is provided with internal thread, the outside of fixed sleeve is provided with and the external thread of internal thread cooperation.

[0008] Further, the piston rod outside reset spring of buffer main part inside one side is provided with the pressure storage sponge, the inside one side of buffer main part is provided with dust cover, the piston rod outside dust cover inside is provided with oil seal.

[0009] Further, the inside of installation end cover is provided with oil injection hole at the middle position, the oil injection hole is communicated with the inside of buffer main part, the one side of oil injection hole inside is provided with check valve.

[0010] Further, the detachable movable assembly includes connecting nut, the connecting nut rotation is connected at the middle position of the other side of head, the connecting nut is hexagon nut, the one side of piston rod is provided with the connector.

[0011] Further, the outside of connector is provided with and the external thread of connecting nut inside thread cooperation, and the connecting nut is fixed in the outside of connector through thread connection.

[0012] The utility model has the following beneficial effects:

[0013] 1, the utility model discloses a reset spring outside the fixed sleeve of buffer main part outside one side and piston rod one side between is provided with the protection assembly, before using oil pressure buffer, from the lower part of sleeve protection rubber cover, first, the one side of protection rubber cover installation sleeve is screwed from the outside of fixed sleeve of buffer main part outside to the outside of reset spring, then the installation sleeve is respectively screwed tightly and fixed in the outside of fixed sleeve, which can achieve the purpose of the outside of protection rubber cover, the protection rubber cover can avoid foreign matter from entering the reset spring and affecting the normal compression, so that the buffer cannot be used normally, and dust is prevented from falling on the piston rod and being brought into the buffer to pollute the hydraulic oil and cause the buffer to be damaged, thereby realizing the effect of protecting the buffer piston rod and reset spring, and the implementation is strong.

[0014] 2. The utility model discloses a dismounting movable assembly is arranged between the one side of piston rod and the other side of the head of being hit, and when using, the connecting nut of rotation connection with the head of being hit is fixed outside the connecting head through the thread connection, can reach the head of being hit fixed installation on one side of piston rod and the purpose of rotatable, thereby when oil pressure buffer is hit by the object in rotation, the head of being hit can rotate, avoids the problem of the excessive torque leading to the bending of piston rod, reset bad and internal eccentric friction to influence the performance of buffer even leads to product breakage. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the utility model embodiment, the following will be to the embodiment description needed to use the drawing briefly introduce, obviously, the drawing in the following description only some embodiments of the utility model, for those of ordinary skill in the art, under the premise of not paying creative labor, can also obtain other drawings according to these drawings.

[0016] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0017] Figure 2 It is the front view cross section structure schematic diagram of the utility model;

[0018] Figure 3 It is the local partial exploded schematic diagram of the utility model;

[0019] Figure 4 It is the Figure 2 Amplification structure schematic diagram of the utility model in A place.

[0020] In the drawing, the component list represented by each sign is as follows:

[0021] 1, buffer main body;2, installation sleeve;3, protection rubber sleeve;4, head of being hit;5, silencer sleeve;6, connecting nut;7, installation end cover;8, inner tube;9, piston;10, piston rod;11, reset spring;12, fixed sleeve;13, check valve;14, oil injection hole;15, connecting head;16, dustproof sleeve;17, oil seal;18, pressure accumulation sponge. DETAILED DESCRIPTION

[0022] The technical scheme in the utility model embodiment will be described clearly and completely in combination with the drawings in the utility model embodiment.

[0023] Please refer to Figures 1-4As shown, the utility model is a kind of oil buffer, including buffer main body 1, still include: the inside one side of buffer main body 1 is inserted with piston rod 10, and the piston rod 10 outside one side of buffer main body 1 is provided with reset spring 11, the inside of buffer main body 1 is provided with inner tube 8, and the one side of piston rod 10 is provided with impact head 4, and the one side of impact head 4 is sleeved with muffling sleeve 5, and the one side of buffer main body 1 is provided with mounting end cover 7, and the middle position of mounting end cover 7 inside is provided with oil injection hole 14, and oil injection hole 14 is connected with the inside of buffer main body 1, and the one side of oil injection hole 14 inside is provided with check valve 13, and the inner tube 8 of other side of piston rod 10 is provided with piston 9, and when using oil buffer, piston rod 10 is impacted by external force and drives piston 9 to extrude hydraulic oil in inner tube 8, and hydraulic oil is discharged through oil drain hole of inner tube 8 after being pressed, and at the same time, it is returned to inner tube 8 by oil return of inner tube 8, when external force disappears, reset spring 11 is bounced back to initial point with piston rod 10 and waits for next action, and the outer side of piston rod 10 of the inside one side of buffer main body 1 is provided with pressure storage sponge 18, and the inside one side of buffer main body 1 is provided with dustproof sleeve 16, and the outer side of piston rod 10 of the inside of dustproof sleeve 16 is provided with oil seal 17, and hydraulic oil leakage is avoided by oil seal 17 and dustproof sleeve 16.

[0024] As a further embodiment of the present embodiment, as Figures 1-4 As shown, the outside of reset spring 11 is provided with protective rubber sleeve 3, the inner diameter of mounting sleeve 2 is greater than the diameter of buffer main body 1, the both sides of protective rubber sleeve 3 are provided with mounting sleeve 2, the one side of the outside of buffer main body 1 and the one end of the outside of piston rod 10 are provided with fixing sleeve 12, the inside of mounting sleeve 2 is provided with internal thread, and the outside of fixing sleeve 12 is provided with external thread matched with internal thread, by respectively synchronously tightening mounting sleeve 2 and fixing sleeve 12, protective rubber sleeve 3 can be stably installed outside reset spring 11, and foreign matter can be avoided from entering reset spring 11 to affect normal compression, so that the buffer cannot be normally used, and dust can be avoided from falling on piston rod 10 and being brought into buffer to pollute hydraulic oil and cause buffer damage, so that the effect of protecting buffer piston rod 10 and reset spring 11 is realized;

[0025] Before using oil buffer, protective rubber sleeve 3 is put on lower sleeve, mounting sleeve 2 of one side of protective rubber sleeve 3 is screwed from the outside of fixing sleeve 12 provided outside buffer main body 1 to the outside of reset spring 11, and then mounting sleeve 2 is respectively synchronously tightened and fixed outside fixing sleeve 12, so that protective rubber sleeve 3 can be stably installed outside reset spring 11, and protective rubber sleeve 3 is used for isolating and protecting piston rod 10 and reset spring 11 when buffer works;

[0026] As a further embodiment of the present embodiment, as Figure 1 、 Figure 2 And Figure 3As shown, a dismounting and mounting movable assembly is arranged between one side of the piston rod 10 and the other side of the impact head 4, the dismounting and mounting movable assembly comprises a connecting nut 6, the connecting nut 6 is rotationally connected at the middle position of the other side of the impact head 4, the connecting nut 6 is a hexagonal nut, one side of the piston rod 10 is provided with a connecting head 15, the outer side of the connecting head 15 is provided with external threads matched with the internal threads of the connecting nut 6, the connecting nut 6 is fixed on the outside of the connecting head 15 through thread connection, the connecting nut 6 rotationally connected with the impact head 4 is fixed on the outside of the connecting head 15 through thread connection, so that the impact head 4 can be fixed and mounted on one side of the piston rod 10 and can rotate, when the oil pressure buffer is impacted by a rotating object, the impact head 4 can rotate, so that the problem of excessive torque causing the piston rod 10 to bend, poor reset and internal eccentric friction is avoided, and the performance of the buffer is affected or the product is even damaged;

[0027] Working principle: when the oil pressure buffer is used, the connecting nut 6 rotationally connected with the impact head 4 is fixed on the outside of the connecting head 15 through thread connection, so that the impact head 4 can be fixed and mounted on one side of the piston rod 10 and can rotate, and the mounting sleeve 2 is simultaneously and tightly fixed on the outside of the fixing sleeve 12, so that the protective rubber sleeve 3 is stably mounted on the outside of the reset spring 11, when the oil pressure buffer is used, the piston rod 10 is impacted by external force to drive the piston 9 to extrude the hydraulic oil in the inner tube 8, when the oil pressure buffer is impacted by a rotating object, the impact head 4 can rotate, so that the problem of excessive torque causing the piston rod 10 to bend, poor reset and internal eccentric friction is avoided, the hydraulic oil is discharged through the oil discharge hole of the inner tube 8 after being pressed, and is returned to the inner tube 8 through the oil return hole of the inner tube 8, when the external force disappears, the reset spring 11 returns the piston rod 10 to the initial point to wait for the next action, and the oil seal 17 and the dustproof sleeve 16 are used to prevent the hydraulic oil from leaking, and the buffer works while the protective rubber sleeve 3 is used to isolate and protect the piston rod 10 and the reset spring 11, so that the oil pressure buffer can work safely and stably.

[0028] The preferred embodiments are only used for the utility model, and do not limit the utility model, any modification, equivalent replacement, improvement of the technical solutions recorded in the foregoing embodiments, and the modification, equivalent replacement, improvement all belong to the protection range of the utility model.

Claims

1. An oil buffer comprising a buffer body (1), characterized in that, Also include: One side of the buffer body (1) inside the piston rod (10) is inserted, the buffer body (1) one side of the piston rod (10) is provided with reset spring (11), the buffer body (1) inside is provided with inner tube (8), one side of the piston rod (10) is provided with the head (4), one side of the head (4) is sleeved with the soundproof sleeve (5), one side of the buffer body (1) is provided with mounting end cover (7), the inner tube (8) of the other side of the piston rod (10) is provided with piston (9), the outside of reset spring (11) is provided with protective rubber sleeve (3), both sides of the protective rubber sleeve (3) are provided with mounting sleeve (2), one side of the buffer body (1) outside and one end of the piston rod (10) outside is provided with fixed sleeve (12), one side of the piston rod (10) and the other side of the head (4) is provided with dismounting movable assembly.

2. An oil damper according to claim 1, wherein The inner diameter of the mounting sleeve (2) is greater than the diameter of the buffer body (1), the inner side of the mounting sleeve (2) is provided with internal thread, the outer side of the fixed sleeve (12) is provided with external thread matched with the internal thread.

3. The oil pressure damper according to claim 1, wherein The piston rod (10) outside one side of the buffer body (1) inside is provided with pressure accumulation sponge (18), one side of the buffer body (1) inside is provided with dustproof sleeve (16), the piston rod (10) outside the inner side of the dustproof sleeve (16) is provided with oil seal (17).

4. The oil pressure damper according to claim 1, wherein The middle position of the mounting end cover (7) inside is provided with oil injection hole (14), the oil injection hole (14) is communicated with the inside of the buffer body (1), one side of the oil injection hole (14) inside is provided with check valve (13).

5. The oil pressure damper according to claim 1, wherein The dismounting movable assembly comprises connecting nut (6), the connecting nut (6) is rotatably connected at the middle position of the other side of the head (4), the connecting nut (6) is hexagonal nut, one side of the piston rod (10) is provided with connecting head (15).

6. An oil damper according to claim 5, wherein The outer side of the connecting head (15) is provided with external thread matched with the inner thread of the connecting nut (6), the connecting nut (6) is fixed on the outside of the connecting head (15) through thread connection.

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