CN220037326U

CN220037326U - Self-adaptation is bumper shock absorber end structure for farmer's car

Info

Publication number: CN220037326U
Application number: CN202320742574.0U
Authority: CN
Inventors: 范鸿峰
Original assignee: Wuxi Longzhixiang Machinery Co ltd
Current assignee: Wuxi Longzhixiang Machinery Co ltd
Priority date: 2023-04-06
Filing date: 2023-04-06
Publication date: 2023-11-17
Anticipated expiration: 2033-04-06

Abstract

The utility model provides an end structure of a self-adaptive shock absorber for a farmer vehicle, which comprises an oil storage cylinder and a base; one end of the piston rod extends into the oil storage cylinder, a piston valve and a guide assembly are sleeved outside the piston rod, the guide assembly guides the piston rod to move left and right in the oil storage cylinder, and the other end of the piston rod extends into and is arranged in the base; the ejector rod is coaxially sleeved in the piston rod, one end, close to the oil storage cylinder, of the ejector rod is provided with an adjusting ejector pin, and the other end of the ejector rod is provided with a driven ejector pin; the adjusting rod is arranged in the base through the adjusting fixing nut, the adjusting rod is perpendicular to the ejector rod, and the top of the adjusting rod and the driven ejector pin are perpendicular to each other and are tangentially arranged. The utility model uses the up-and-down movement of the adjusting rod in the base to push the driven thimble to move left and right, thereby driving the ejector rod in the oil storage cylinder and the interval between the adjusting thimble and the positioning bolt to change, changing the interval between the ejector rod and the adjusting thimble, thereby achieving the purpose of oil intake, achieving the purpose of adapting to soft and hard shock absorption, having simple adjusting mode, few structural members and reducing cost.

Description

Self-adaptation is bumper shock absorber end structure for farmer's car

Technical Field

The utility model relates to the technical field of shock absorbers for farmer vehicles, in particular to the technical field of shock absorption softness adjustment, and specifically relates to an end structure of a shock absorber for a self-adaptive farmer vehicle.

Background

Farmers' vehicles have their own weight of about 1.5 tons and mostly use environments which are not smooth farms, beach, tourist attractions, even mountain areas and other rugged environments, so that they must be equipped with shock absorbers to achieve the comfort level of the vehicle to meet the comfort and safety of passengers.

However, in the actual use process, due to different weights of people or personnel sum in each time, people like to absorb shock slightly, people like to absorb shock hard, the application range of the farmer vehicle shock absorber is narrow, the farmer vehicle shock absorber is only suitable for specific vehicle types and road conditions, the adjustment of the hardness cannot be carried out to adapt to different road conditions and use environments, and due to the fact that the production scale of the farmer vehicle shock absorber is smaller, the production cost is higher, the adjustment of the hardness cannot be carried out, and otherwise the production cost and the selling price are increased.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, an object of the present utility model is to provide an end structure of a shock absorber for an adaptive farmer vehicle, which is used to solve the difficulties of the prior art.

To achieve the above and other related objects, the present utility model provides an end structure of a shock absorber for an adaptive farmer vehicle, comprising:

the oil storage cylinder 1 and the base 2 are arranged on the same axis, and damping oil 3 is stored in the oil storage cylinder 1;

the piston rod 4, one end of the piston rod 4 stretches into the oil storage barrel 1 to be arranged, a piston valve 6 and a guide component are sleeved outside the piston rod 4, the guide component guides the piston rod 4 to move left and right in the oil storage barrel 1, and the other end stretches into and is arranged in the base 2;

the ejector rod 5 is coaxially sleeved in the piston rod 4, one end, close to the oil storage cylinder 1, of the ejector rod 5 is provided with an adjusting ejector pin 7, one end, far away from the base 2, of the adjusting ejector pin 7 is coaxially arranged with a through hole of a positioning bolt 8 arranged on the end part of the piston rod 4 positioned in the oil storage cylinder 1, and the other end of the ejector rod 5 is provided with a driven ejector pin 9;

the adjusting rod 10, adjust the pole 10 and install in base 2 through adjusting fixation nut 11, adjust pole 10 perpendicular to ejector pin 5 setting, adjust the top of pole 10 and the mutual perpendicular and tangent setting between the driven thimble 9, through the reciprocates of adjusting the pole 10 promotes the left and right movement of driven thimble 9, and then drives ejector pin 5 and adjusts the interval between thimble 7 and the positioning bolt 8.

According to a preferred scheme, an adjusting spring 12 is sleeved outside the adjusting ejector rod 5.

According to a preferred scheme, the guide assembly comprises a positioning sleeve 13, a buffer ring 14, a guide sleeve 15, a guide gland 16, a valve body 17 and a decorative cover 18 which are sequentially sleeved on the piston rod 4 along the side close to the base 2, wherein the decorative cover 18 is mounted on the end part of the oil storage barrel 1 through bolts.

According to a preferred embodiment, a clearance fit is used between the valve body 17 and the decorative cover 18.

According to a preferred embodiment, the positioning sleeve 13 is located in the oil storage space between the piston valve 6 and the guiding sleeve 15, and said positioning sleeve 13 is arranged away from the oil outlet end 19 of the piston rod 4.

According to a preferred scheme, a sealing ring assembly is embedded in one end, close to the guide sleeve 15, of the guide gland 16, the sealing ring assembly comprises an inner sealing ring 20 and an outer sealing ring 21, the inner sealing ring 20 is sleeved between the piston rod 4 and the guide gland 16, and the outer sealing ring 21 is sleeved between the guide gland 16 and the oil storage barrel 1.

According to a preferred embodiment, the thickness of the outer seal ring 21 is smaller than the thickness of the inner seal ring 20.

According to the preferred scheme, the oil storage device also comprises a buffer block 22, wherein the buffer block 22 is arranged at one end of the oil storage cylinder 1, which is close to the base 2, and is sleeved on the piston rod 4;

the outer peripheral ring of the buffer block 22 is provided with an annular groove 23, and the annular groove 23 is provided with a plurality of grooves along the circumferential direction.

According to a preferred scheme, a groove 27 corresponding to the end part of the buffer block 22 is arranged on one side, close to the oil storage barrel 1, of the lower spring seat 26, and a chamfer is arranged around one end, close to the lower spring seat 26, of the buffer block 22.

According to the preferred scheme, one end of the adjusting thimble 7, which is close to the positioning bolt 8, is in a round-head cone angle structure, the outer diameter of one end of the positioning bolt 8, which is close to the positioning bolt 8, is smaller than the inner diameter of the through hole of the positioning bolt 8, and the outer diameter of one end, which is far away from the positioning bolt 8, is larger than the inner diameter of the through hole of the positioning bolt 8.

According to the preferred scheme, the adjacent ends of the driven thimble 9 and the adjusting rod 10 are arranged in a conical shape.

According to the preferred scheme, the sizes of the driven thimble 9 and the conical head of the adjusting rod 10 are the same, and the driven thimble 9 and the conical head are arranged at an angle of 90 degrees.

According to a preferred embodiment, the upper spring seat 25 is mounted on the outer peripheral ring of the oil storage barrel 1 through a spring adjusting nut 24, and the lower spring seat 26 is correspondingly mounted on one end of the base 2 close to the oil storage barrel 1.

According to a preferred embodiment, the outer diameter of the lower spring seat 26 is greater than the outer diameter of the upper spring seat 25.

The utility model uses the up-and-down movement of the adjusting rod in the base to push the driven thimble to move left and right, thereby driving the ejector rod in the oil storage cylinder and the interval between the adjusting thimble and the positioning bolt to change, changing the interval between the ejector rod and the adjusting thimble, thereby achieving the purpose of oil intake, achieving the purpose of adapting to soft and hard shock absorption, having simple adjusting mode, few structural members and reducing cost.

Preferred embodiments for carrying out the present utility model will be described in more detail below with reference to the attached drawings so that the features and advantages of the present utility model can be easily understood.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a partial structure of the present utility model;

FIG. 3 is a schematic view of another partial structure of the present utility model;

FIG. 4 is an enlarged schematic view showing the structure of the piston rod according to the present utility model;

FIG. 5 is an enlarged schematic view showing the structure of the adjusting thimble according to the present utility model;

FIG. 6 is an enlarged schematic view showing the structure of the buffer block according to the present utility model;

FIG. 7 is an enlarged schematic view of the driven ejector pin according to the present utility model;

FIG. 8 is an enlarged view showing the structure of the adjusting lever according to the present utility model;

FIG. 9 is an enlarged schematic view showing the structure of the adjusting and fixing nut according to the present utility model;

description of the reference numerals

1. An oil storage cylinder; 2. a base; 3. damping oil; 4. a piston rod; 5. a push rod; 6. a piston valve; 7. adjusting the thimble; 7. adjusting the thimble; 8. positioning bolts; 9. a driven thimble; 10. an adjusting rod; 11. adjusting the fixing nut; 12. an adjusting spring; 13. a positioning sleeve; 14. a buffer ring; 15. a guide sleeve; 16. guiding the gland; 17. a valve body; 18. a decorative cover; 19. an oil outlet end; 20. an inner seal ring; 21. an outer seal ring; 22. a buffer block; 23. an annular groove; 24. a spring adjustment nut; 25. an upper spring seat; 26. a lower spring seat; 27. a groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the technical solutions of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of specific embodiments of the present utility model. Like reference numerals in the drawings denote like parts. It should be noted that the described embodiments are some, but not all embodiments of the present utility model. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present utility model fall within the protection scope of the present utility model.

Possible embodiments within the scope of the utility model may have fewer components, have other components not shown in the drawings, different components, differently arranged components or differently connected components, etc. than the examples shown in the drawings. Furthermore, two or more of the elements in the figures may be implemented in a single element or a single element shown in the figures may be implemented as multiple separate elements.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. Likewise, the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

The utility model provides an end part structure of a self-adaptive shock absorber for a farmer vehicle, which is used in a four-wheel vehicle shock absorbing process, does not limit the use environment and the type of the terrain, but is particularly suitable for the farmer vehicle, the kart vehicle and the grinding wheel vehicle.

In general, the end structure of the self-adaptive shock absorber for the farmer vehicle mainly comprises an oil storage cylinder 1, a base 2, a piston rod 4, a mandril 5 and an adjusting rod 10. Among them, reference can be made to fig. 1, which shows the arrangement of the reservoir 1 and the base 2, the piston rod 4, the ejector rod 5, the adjustment rod 10.

In order to achieve the purpose of conveniently adjusting the oil output to adapt to different damping soft and hard degrees, the problems that in the background technology, due to the fact that the weights of people or personnel sum in the base 2 are different in each time, and due to the fact that some people like to absorb shock slightly, some people absorb shock hard, the application range of the farmer vehicle shock absorber is narrow, the farmer vehicle shock absorber is only suitable for specific vehicle types and road conditions, adjustment of the soft and hard degree cannot be carried out to adapt to different road conditions and use environments, and due to the fact that the production scale of the farmer vehicle shock absorber is smaller, the production cost is higher, adjustment of the soft and hard degree cannot be carried out, otherwise the production cost and the selling price are increased are solved.

As shown in fig. 1, in the shock absorber, damping oil 3 is stored in an oil storage cylinder 1, a base 2 and the oil storage cylinder 1 are arranged on the same axis, the base 2 and the oil storage cylinder 1 are connected through a stretched-in piston rod 4, a piston valve 6 and a guide component are sleeved outside one end of the piston rod 4 in the oil storage cylinder 1, the guide component guides the piston rod 4 to move left and right in the oil storage cylinder 1, and the other end of the guide component stretches into and is arranged in the base 2 without moving;

next, as shown in fig. 1 and 2, the ejector pin 5 is coaxially sleeved in the piston rod 4, one end of the adjusting ejector pin 7, which is far away from the base 2, is coaxially arranged with a through hole of a positioning bolt 8 arranged on the end part of the piston rod 4 inside the oil storage cylinder 1, a gap is arranged between the adjusting ejector pin 7 and the positioning bolt 8, damping oil 3 can flow in the gap, the gap is adjustable, when the gap is enlarged, the flow rate of the damping oil 3 is increased, soft damping can be obtained, when the gap is reduced, the flow rate of the damping oil 3 is reduced, the damping effect tends to be hard, and therefore, one end, which is close to the positioning bolt 8, of the adjusting ejector pin 7 is preferably in a round-head cone angle structure and is suitable for being led into the through hole of the positioning bolt 8, and in order to realize the change of the gap caused by the left-right movement of the adjusting ejector pin 7, so that the outer diameter of one end, which is close to the positioning bolt 8, is required to be smaller than the inner diameter of the through hole of the positioning bolt 8, and the outer diameter of the end, which is far away from the positioning bolt 8, is larger than the inner diameter of the through hole of the positioning bolt 8.

Correspondingly, as shown in fig. 1 and 3, the other end of the ejector rod 5 is provided with a driven ejector pin 9, the driven ejector pin 9 is positioned in the base 1, the lower parts of the end parts of the driven ejector pins 9 are mutually vertical and tangentially provided with an adjusting rod 10, the adjusting rod 10 is arranged in the base 2 through an adjusting fixing nut 11, and the adjusting rod 10 is screwed by the adjusting fixing nut 11 after being adjusted to the required height so as to achieve the aim of fixing the height, thereby achieving the horizontal position of the driven ejector pin 9; in this embodiment, the driven thimble 9 and the adjacent end of the adjusting rod 10 are preferably arranged in a conical shape, the sizes of the driven thimble 9 and the conical head of the adjusting rod 10 are the same, the driven thimble 9 and the conical head of the adjusting rod 10 are arranged at an angle of 90 degrees, the error during adjustment is avoided, the structure is simplified, the parameters of angle matching are further simplified, the most common angle is used, the production difficulty of single parts can be reduced while the matching is convenient to use, the efficiency is high, the cost is low, and the installation and the maintenance are convenient.

As described above, when the ejector rod 5 is driven by the adjusting rod 10 to move, the stability of the movement needs to be ensured, and therefore, the adjusting spring 12 is sleeved outside the adjusting ejector rod 5; on this basis, the movement of the piston rod 4 also needs to achieve a stable effect, and stable adjustment can be achieved, so that the guide assembly comprises a positioning sleeve 13, a buffer ring 14, a guide sleeve 15, a guide gland 16, a valve body 17 and a decorative cover 18 which are sequentially sleeved on the piston rod 4 along one side close to the base 2, the positioning sleeve 13 is positioned in an oil storage space between the piston valve 6 and the guide sleeve 15, the positioning sleeve 13 is far away from an oil outlet end 19 of the piston rod 4, an oil storage channel and space are provided, and in addition, the decorative cover 18 is mounted on the end part of the oil storage cylinder 1 through bolts, wherein a clearance fit mode is adopted between the valve body 17 and the decorative cover 18, so that the movement allowance is provided, and the service life is prolonged.

On the basis, preferably, a sealing ring assembly is embedded at one end of the guide gland 16, which is close to the guide sleeve 15, and comprises an inner sealing ring 20 and an outer sealing ring 21, wherein the inner sealing ring 20 is sleeved between the piston rod 4 and the guide gland 16, and the outer sealing ring 21 is sleeved between the guide gland 16 and the oil storage cylinder 1, so that leakage of damping oil 3 is avoided, and the thickness of the outer sealing ring 21 is smaller than that of the inner sealing ring 20.

It should be specifically noted that, in the whole adjustment process, the piston rod 4 is integrally guided into the oil storage barrel 1, so that damage of the piston rod 4 caused by direct contact of hard collision is avoided, on one hand, the buffer block 22 is mounted on one end of the oil storage barrel 1 close to the base 2 and sleeved on the piston rod 4, a plurality of annular grooves 23 are formed in the peripheral ring of the buffer block 22 for improving the buffer effect, a groove 27 corresponding to the end part of the buffer block 22 is formed in one side of the corresponding lower spring seat 26 close to the oil storage barrel 1, and a chamfer is formed around one end of the buffer block 22 close to the lower spring seat 26, so that damage caused by multiple use is avoided; on the other hand, an upper spring seat 25 is arranged on the outer periphery of the oil storage cylinder 1 through a spring adjusting nut 24, a lower spring seat 26 is correspondingly arranged on one end of the base 2 close to the oil storage cylinder 1, and in addition, the outer diameter of the lower spring seat 26 is larger than that of the upper spring seat 25, so that the protection effect on a large spring sleeved outside the oil storage cylinder 1 can be achieved.

The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims

1. An adaptive farmer vehicle shock absorber end structure, comprising:

the oil storage device comprises an oil storage cylinder (1) and a base (2), wherein the oil storage cylinder (1) and the base (2) are arranged on the same axis, and damping oil (3) is stored in the oil storage cylinder (1);

the piston rod (4), one end of the piston rod (4) stretches into the oil storage cylinder (1) to be arranged, a piston valve (6) and a guide assembly are sleeved outside the piston rod (4), the guide assembly guides the piston rod (4) to move left and right in the oil storage cylinder (1), and the other end stretches into and is arranged in the base (2);

the ejector rod (5) is coaxially sleeved in the piston rod (4), one end, close to the oil storage cylinder (1), of the ejector rod (5) is provided with an adjusting ejector pin (7), one end, far away from the base (2), of the adjusting ejector pin (7) is coaxially arranged with a through hole of a positioning bolt (8) arranged on the end part of the piston rod (4) positioned in the oil storage cylinder (1), and the other end of the ejector rod (5) is provided with a driven ejector pin (9);

the adjusting rod (10), adjust pole (10) and install in base (2) through adjusting fixation nut (11), adjust pole (10) perpendicular to ejector pin (5) setting, adjust mutually perpendicular and tangent setting between the top of pole (10) and driven thimble (9), through the reciprocates of adjusting pole (10) promotes the left and right movement of driven thimble (9), and then drives ejector pin (5) and adjusts the interval between thimble (7) and the positioning bolt (8).

2. The end structure of the self-adaptive farmer vehicle shock absorber according to claim 1, wherein the guide assembly comprises a positioning sleeve (13), a buffer ring (14), a guide sleeve (15), a guide gland (16), a valve body (17) and a decorative cover (18) which are sequentially sleeved on the piston rod (4) along one side close to the base (2), and the decorative cover (18) is mounted on the end of the oil storage cylinder (1) through bolts.

3. The end structure of the self-adaptive farmer vehicle shock absorber according to claim 2, wherein a sealing ring assembly is embedded at one end of the guide gland (16) close to the guide sleeve (15), the sealing ring assembly comprises an inner sealing ring (20) and an outer sealing ring (21), the inner sealing ring (20) is sleeved between the piston rod (4) and the guide gland (16), and the outer sealing ring (21) is sleeved between the guide gland (16) and the oil storage cylinder (1).

4. The end structure of the self-adaptive farmer vehicle shock absorber according to claim 3, further comprising a buffer block (22), wherein the buffer block (22) is arranged on one end of the oil storage cylinder (1) close to the base (2) and sleeved on the piston rod (4);

an annular groove (23) is formed in the outer periphery of the buffer block (22), and a plurality of annular grooves (23) are formed in the circumferential direction.

5. The end structure of the self-adaptive farmer vehicle shock absorber according to claim 4, wherein one end of the adjusting thimble (7) close to the positioning bolt (8) is in a round-head cone angle structure, the outer diameter of one end of the positioning bolt (8) close to the positioning bolt (8) is smaller than the inner diameter of the through hole of the positioning bolt (8), and the outer diameter of one end far away from the positioning bolt (8) is larger than the inner diameter of the through hole of the positioning bolt (8).

6. The end structure of the self-adaptive farmer vehicle shock absorber according to claim 5, wherein the adjacent ends of the driven thimble (9) and the adjusting rod (10) are arranged in a conical shape.

7. The end structure of the self-adaptive farmer vehicle shock absorber according to claim 6, wherein an upper spring seat (25) is installed on the outer periphery of the oil storage cylinder (1) through a spring adjusting nut (24), and a lower spring seat (26) is installed on one end of the base (2) close to the oil storage cylinder (1).