CN216742582U

CN216742582U - Shock absorber with universal joint damping rods

Info

Publication number: CN216742582U
Application number: CN202121177376.1U
Authority: CN
Inventors: 周德俊
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-28
Filing date: 2021-05-28
Publication date: 2022-06-14
Anticipated expiration: 2031-05-28

Abstract

The utility model relates to the technical field of vehicles and shock absorbers, in particular to a shock absorber with a universal joint damping rod. The damping device comprises an upper damping connecting pipe and a lower damping connecting pipe, wherein the upper damping connecting pipe and the lower damping connecting pipe are connected with each other, and a sealed air pressure piston cavity is formed in a self pipe body structure after the upper damping connecting pipe and the lower damping connecting pipe are combined; wherein: a damping rod which is used for lifting in the air pressure piston cavity to achieve a damping function is arranged in the air pressure piston cavity, a plug joint is arranged at the bottom end of the damping rod, a connecting ring groove is arranged at the top end of the damping rod, and a substitute universal joint is connected and arranged at the connecting ring groove; the substitute universal joint comprises a fixed screwed part and a positioning nut part, the fixed screwed part comprises a cover sleeve part and a screwed connection column arranged at the top of the cover sleeve part, the outer walls of the cover sleeve part and the screwed connection column are provided with threads, the cover sleeve part and the screwed connection column are used for being fixed or in clutch connection with an upper shock absorption connecting pipe, the cover sleeve part is covered at the top of the damping rod, and at least a cover is covered with a connecting ring groove.

Description

Shock absorber with universal joint damping rods

Technical Field

The utility model relates to the technical field of vehicles and shock absorbers, in particular to a shock absorber with a universal joint damping rod.

Background

The existing shock absorber is widely applied to various multi-wheel vehicles and is used for accelerating the attenuation of the vibration of a frame and a vehicle body so as to improve the driving smoothness of an automobile. Generally, a shock absorber with a structure of electromagnetism and the like with a high price is adopted, but in a small vehicle such as a kart or a beach vehicle and the like, because a frame is very short and needs a shock absorber with a short length, the shock absorber with the electromagnetic structure does not have a long-distance slowing effect on the short shock absorber, and therefore a shock absorber with a short distance and high shock absorption capacity is needed.

Disclosure of Invention

The utility model overcomes the defects in the prior art, and provides a shock absorber provided with a universal joint damping rod, which has a swing control pulley structure, is simple to arrange and assemble, has a small volume and is particularly suitable for small shock absorbers of low frames.

The utility model is realized by the following modes: a shock absorber provided with a universal joint damping rod comprises an upper shock absorption connecting pipe and a lower shock absorption connecting pipe, wherein the upper shock absorption connecting pipe and the lower shock absorption connecting pipe are connected with each other, and a sealed air pressure piston cavity is formed in a self pipe body structure after the upper shock absorption connecting pipe and the lower shock absorption connecting pipe are combined; wherein: a damping rod which is used for lifting in the air pressure piston cavity to achieve a damping function is arranged in the air pressure piston cavity, a plug joint is arranged at the bottom end of the damping rod, a connecting ring groove is arranged at the top end of the damping rod, and a substitute universal joint is connected and arranged at the connecting ring groove;

the substitute universal joint comprises a fixed screwed part and a positioning nut part, the fixed screwed part comprises a cover sleeve part and a screwed connection column arranged at the top of the cover sleeve part, the outer walls of the cover sleeve part and the screwed connection column are provided with threads, the cover sleeve part and the screwed connection column are used for being fixed or in clutch connection with an upper shock absorption connecting pipe, the cover sleeve part is covered at the top of the damping rod, and at least a cover is covered with a connecting ring groove.

Preferably, the upper damper connecting pipe and the lower damper connecting pipe are connected by an airtight pipe. The airtight pipe mainly strengthens nimble airtight structure and the outside sets up the elasticity cover and connects, strengthens.

Preferably, the bottom end of the damping rod is provided with a plug rod integrated with the damping rod, the top of the plug rod is continuously provided with a plug rod connecting screw rod, the plug rod is sleeved with a plug ring, the plug rod connecting screw rod is provided with a fixing nut, and the fixing plug ring is sleeved on the plug rod to form sleeved fixed or movable connection.

Preferably, the length of the plug rod is larger than that of the plug rod connecting screw rod, and the length of the plug rod is larger than the height of the fixed plug ring. The arrangement can ensure the movable range of the fixed plug ring, so that the fixed plug ring becomes movable connection rather than rigid connection, and ensure that the internal air pressure or hydraulic oil has a certain expansion range.

Preferably, the connecting ring groove is provided at a position at least 0.2mm from the topmost end of the tip portion. The sealing ring is arranged to ensure that the sealing ring can not fall off from the top end part and is always kept in a sleeved state.

Preferably, the bottom of the fixed screw connector is concavely provided with a clutch groove, and the connecting ring groove at the top end part of the damping rod is inserted into the clutch groove.

Preferably, a rod hole is formed in the center of the bottom of the positioning nut piece, the size of the rod hole is smaller than the diameter of the positioning nut piece, and a positioning thread groove is formed above the rod hole; the cover sleeve part of the fixed screw connector is screwed by utilizing the threads on the outer wall of the cover sleeve part and the positioning thread groove, the fixed screw connector is fixedly connected to the upper end of the positioning nut part, and the clutch groove and the positioning thread groove are spliced to form a clutch cavity after the positioning nut part and the fixed screw connector are connected; the top end part of the damping rod is installed into the clutch cavity to be fixedly connected or connected in a clutch way.

Preferably, the section of the plug section is of an I-shaped structure and comprises a sliding pipe, an upper plug piece and a lower plug piece, the upper plug piece is longitudinally arranged above the sliding pipe, the lower plug piece is arranged below the sliding pipe, a plug section sealing piece is sleeved on the sliding pipe, and the bottom of the plug section is provided with a screw connected to a plug rod connecting screw rod so that the plug section is arranged on the plug rod in a penetrating manner. This configuration increases the retention of the plug seal and allows for proper adjustment.

Preferably, the upper plug piece or the lower plug piece is provided with a cross-shaped plug piece around the piece core hole. The patch may be of increased connectivity or permeability.

Preferably, the positioning nut member is a diamond-shaped or circular or square-shaped nut or a nut provided with a straight cut. The whole shaft body of the shock absorber can be prevented from displacing due to the fact that the damping rod twists in the rotating process.

Preferably, a piston airtight pipe is arranged in the center of the airtight pipe, air throttle pipes are arranged at the head end and the tail end of the piston airtight pipe, the damping rod penetrates through the piston airtight pipe and is connected with the piston airtight pipe, and an airtight plug piece is arranged at the position of the air throttle pipe. The piston airtight tube can form an upper air exchange position and a lower air exchange position, and an airtight plug sheet on the damping rod is combined, so that the upper airtight plug sheet can be airtight when the damping rod descends, and the lower airtight plug sheet can be airtight when the damping rod ascends, and the airtight structure is always maintained.

Preferably, the airtight tube is sleeved with an elastic tube. The elasticity pipe can be relatively quick carry out the regulation of elasticity, also can decompose from top to bottom for middle structure replaces.

Preferably, the top of the lower damping connecting pipe is provided with a connecting slot, the lower damping connecting pipe is provided with a connecting insertion pipe as a matching dense pipe, and the connecting insertion pipe is inserted into the connecting slot or is in threaded connection with the connecting insertion pipe.

The utility model has the advantages that: 1. the mounting structure can be mounted very quickly and disassembled very quickly, and the fixed screw connector at the top can be replaced by different lengths and types, so that the mounting structure can adapt to various sizes, and particularly adapt to a very small main structure of the shock-absorbing rod; the air pressure cavity is stressed greatly, and the explosion-proof capacity is strong;

2. the rod body can be replaced into structures with different lengths, so that the rod is suitable for small-sized low vehicles;

3. the damping device has the advantages that a spring structure is not used, a highly sensitive air pressure or oil pressure structure is adopted, a unique lifting damping structure is matched, the damping effect is obviously better than that of the spring structure, the damping device is very high in adjustability, the damping rods can be rapidly replaced according to different weights, the optimal damping state can be achieved after the air pressure or the oil pressure is adjusted, and particularly if one trolley is suitable for the conditions of a plurality of trolleydrivers, the weights of all the trolleydrivers are different, the adjustment is more convenient than that of the existing spring damping structure;

4. and the service life of the spring structure is not limited, and the damping rod can be maintained only by replacing the damping rod under the condition that problems occur in the future.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a general anatomical view;

FIG. 3 is a full exploded anatomical view;

FIG. 4 is an overall exploded view;

FIG. 5 is an overall perspective view;

FIG. 6 is a view of an alternative gimbal structure;

FIG. 7 is a front view of the plug section;

FIG. 8 is a top or bottom view of the plug section;

FIG. 9 is a perspective view of the overall exploded top view;

fig. 10 is an installation sequence diagram of embodiment 1 of the present invention.

FIG. 11 is a schematic view of the structure of the embodiment 1 of the present invention installed in the shock absorber.

Detailed Description

The utility model will be further described with reference to the embodiments shown in the drawings to which:

as shown in fig. 1 to 9, a shock absorber with a universal joint damping rod comprises an upper shock absorbing connecting pipe 101, a lower shock absorbing connecting pipe 102 and an airtight pipe 103, wherein the upper shock absorbing connecting pipe 101 and the lower shock absorbing connecting pipe 102 are connected by the airtight pipe 103, and a sealed air pressure piston cavity 104 is formed inside a self pipe body structure after combination; air higher than external air pressure is sealed in the air pressure piston cavity, and the damping and shock absorption are carried out by utilizing the buffering capacity of the air;

wherein: a damping rod 1 which can lift in the air pressure piston cavity 104 to achieve a damping function is arranged in the air pressure piston cavity 104, a plug joint 2 is arranged at the bottom end part 201 of the damping rod 1, a connecting ring groove 3 is arranged at the top end part 202 of the damping rod 1, and an alternative universal joint 4 is connected and arranged at the connecting ring groove 3;

substitute universal joint 4 is including fixed spiro union piece 5 and location nut spare 6, and fixed spiro union piece 5 is including covering cover portion 7 and the spiro union post 8 of setting at 7 tops of cover portion, and the outer wall of cover portion 7 and spiro union post 8 all is provided with the screw thread, and cover portion 7 and spiro union post 8 are used for fixing or clutch connection with last shock

attenuation connecting pipe

101, and 7 lids of cover portion close at 1 top of damping rod, and at least lid closes connecting ring groove 3.

Preferably, the upper damper connecting pipe 101 and the lower damper connecting pipe 102 are connected by an airtight pipe 103. The airtight pipe mainly strengthens nimble airtight structure and the outside sets up the elasticity cover and connects, strengthens.

The damping rod 1 is arranged in the air pressure piston cavity 104 and is lifted in the air pressure piston cavity 104, the piston section 2 at the bottom of the damping rod 1 is pressed down, and air pressure is increased in the pressing-down process, so that the buffering effect is brought, and the shock absorption is realized; if the pressure at the top is reduced, the air can quickly recover the air pressure, the plug section 2 is pushed upwards, the damping rod 1 recovers the original position, the structural movement of the reset position is very quick, and the shock-absorbing effect is very strong.

Preferably, a piston airtight tube 105 is arranged at the center of the airtight tube 103, throttle tubes 106 are arranged at the head end and the tail end of the piston airtight tube 105, the damping rod 1 penetrates through the piston airtight tube 105, and an airtight plug 107 is arranged at the position of the throttle tube 106. The piston gas-tight tube 105 can form one upper and lower gas-exchange positions, and in combination with the gas-tight plugs on the damping rod, the upper gas-tight plug will make gas-tight in case of the damping rod descending, and the lower gas-tight plug will make gas-tight in case of the damping rod ascending, so that the gas-tight structure is always maintained.

Preferably, the airtight tube 103 is externally covered with a bungee tube 108. The elastic tube 108 can be adjusted quickly and can be disassembled up and down to replace the intermediate structure.

Preferably, the top of the lower shock absorbing connecting tube 102 is provided with a connecting slot 109, the matching airtight tube 103 is provided with a connecting insertion tube 110, and the connecting insertion tube 110 is inserted and connected or screwed.

Embodiment 1, as shown in fig. 5 and 8, comprises 1 damping rod 1, wherein: the bottom end part 201 of the bottommost part of the damping rod 1 can pass through and then fix 1 plug section 2, the top end part 202 of the damping rod 1, namely the bottom part of the bottommost part of the damping rod 1 is cut by a machine tool for a distance of 0.2mm to form a ring-shaped connecting ring groove 3, the connecting ring groove 3 is mainly used for sleeving a nut or a ring section and other fixing parts to carry out fastening and fixed connection, and the connecting ring groove 3 can also be directly inserted for connection without the fastening structure so as to form a movable connecting structure for clutching;

as shown in fig. 4, a stud pipe 110 corresponding to the connecting stud 8 is disposed at the top inside the upper shock-absorbing connecting pipe 101, the connecting stud 8 is screwed in, and then the positioning nut 6 is connected below the connecting stud 8, or the positioning nut 6 is inserted into the damping rod 1 and sleeved under the connecting stud 8, so as to suspend the damping rod 1;

as shown in fig. 2 and 10, the substitute universal joint 4 is connected at the connecting ring groove 3 in a sleeved or covered manner;

as shown in fig. 2 and 6, the substitute universal joint 4 includes a fixing screw member 5 and a positioning nut member 62, the fixing screw member 5 is similar to a T-shaped screw structure, and includes a cover sleeve portion 7 transversely disposed at the bottom and a vertically disposed screw post 8 disposed at the top of the cover sleeve portion 7, the outer walls of the cover sleeve portion 7 and the screw post 8 are both provided with threads, that is, the outer wall of the whole fixing screw member 5 is provided with threads, and at the same time, a rod hole 13 is disposed at the center of the bottom of the positioning nut member 6, the size of the rod hole 13 is smaller than the diameter of the positioning nut member 6, and a positioning thread groove 14 is disposed above the rod hole 13; the cover sleeve part 7 of the fixed screw connector 5 is screwed by utilizing the outer wall threads and the positioning thread groove 14, the fixed screw connector 5 is fixedly connected to the upper end of the positioning nut member 6, and the clutch groove 12 and the positioning thread groove 14 are spliced to form a clutch cavity 15 after the positioning nut member 6 and the fixed screw connector 5 are connected; the top end 202 of the damping rod 1 is fitted into the clutch chamber 15 for fixed or clutched connection.

As shown in fig. 11, the cover sleeve portion 7 and the screw post 8 are used for fixedly connecting with the shock absorber stud 23, the cover sleeve portion 7 covers the top of the damping rod 1, and at least covers the connecting ring groove 3, that is, the whole connecting ring groove 3 is inserted or installed into the clutch cavity 15 to form a fixed structure or a clutch structure; thereby completing a structure in which the damping rod 1 and the combined replacement joint 4 are connected to the shock absorber posts;

the bottom end 201 of the bottommost part of the damping rod 1 can pass through and then fix 1 plug section 2, as shown in fig. 2, 7 and 8, the section of the plug section 2 is in an i-shaped structure and comprises a sliding pipe 16, an upper plug piece 17 and a lower plug piece 18, the upper plug piece 17 is longitudinally arranged above the sliding pipe 16, the lower plug piece 18 is arranged below the sliding pipe 16, a plug section sealing piece 19 is sleeved on the sliding pipe 16, and the bottom of the plug section 2 is provided with a screw connected to a plug rod connecting screw rod 10 so that the plug section 2 is arranged on a plug rod 9 in a penetrating mode. This configuration increases the retention of the plug seal and allows for proper adjustment.

As shown in fig. 11, before the shock absorber bolt 23 is installed, firstly, gas is injected into the shock absorption cavity 24 in the structure of the shock absorber main body 25, then the whole shock absorber main body 25 is sealed to cover the shock absorber bolt 23, or gas is injected into the cavity structure below the plug section 2, after the completion, a plurality of air hole structures on the plug section 2 are sealed, the shock absorption air chamber structure is completed, and the shock absorption effect is achieved through the air chamber in the use process.

Preferably, the bottom end 201 of the damping rod 1 is provided with a plug rod 9 integrated with the damping rod, the top of the plug rod 9 is further provided with a plug rod connecting screw 10, the plug rod 9 is sleeved with a plug ring 11, the plug rod connecting screw 10 is provided with a fixing nut, and the fixing plug ring 11 is sleeved on the plug rod 9 to form a sleeved fixed or movable connection.

Preferably, the length of the plug rod 9 is larger than that of the plug rod connecting screw rod 10, and the length of the plug rod 9 is larger than the height of the fixed plug ring 11. The arrangement can ensure the movable range of the fixed plug ring, so that the fixed plug ring becomes movable connection rather than rigid connection, and ensure that the internal air pressure or hydraulic oil has a certain expansion range.

Preferably, the connecting ring groove 3 is disposed at a position at least 0.2mm from the uppermost end of the tip portion 202. The seal ring is provided to prevent the seal ring from falling off from the distal end portion 202 and to maintain the fitted state.

Preferably, the bottom of the fixing screw 5 is recessed with a separation groove 12, and the connection ring groove 3 of the top end 202 of the damping rod 1 is inserted into the separation groove 12.

Preferably, the upper plug piece 17 or the lower plug piece 18 is provided with a cross-shaped plug piece 21 around the piece core hole 20. The patch may be of increased connectivity or permeability.

Preferably, the positioning nut member 6 is diamond-shaped or circular or square-shaped or provided with a straight cut 22. The whole shaft body of the shock absorber can be prevented from displacing due to the fact that the damping rod twists in the rotating process.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. A shock absorber provided with a universal joint damping rod comprises an upper shock absorption connecting pipe (101) and a lower shock absorption connecting pipe (102), wherein the upper shock absorption connecting pipe (101) and the lower shock absorption connecting pipe (102) are connected with each other, and a sealed air pressure piston cavity (104) is formed in a self pipe body structure after the upper shock absorption connecting pipe and the lower shock absorption connecting pipe are combined; the method is characterized in that: a damping rod (1) which can lift in the air pressure piston cavity (104) to achieve a damping function is arranged in the air pressure piston cavity (104), a plug joint (2) is arranged at the bottom end part (201) of the damping rod (1), a connecting ring groove (3) is arranged at the top end part (202) of the damping rod (1), and a substitute universal joint (4) is connected and arranged at the connecting ring groove (3);

substitute formula universal joint (4) are including fixed spiro union piece (5) and location nut spare (6), fixed spiro union piece (5) are including covering cover portion (7) and setting at spiro union post (8) at cover portion (7) top, the outer wall of covering cover portion (7) and spiro union post (8) all is provided with the screw thread, cover portion (7) and spiro union post (8) are used for fixing or clutch connection with last shock attenuation connecting pipe (101), cover portion (7) lid closes at damping rod (1) top, and at least lid closes connecting ring groove (3).

2. The shock absorber provided with the universal joint damping rod as claimed in claim 1, wherein: the upper shock absorption connecting pipe (101) and the lower shock absorption connecting pipe (102) are connected through an airtight pipe (103).

3. A shock absorber provided with a damping rod for a universal joint according to claim 1, wherein: bottom portion (201) of damping rod (1) set up gag lever post (9) rather than an organic whole, and the top of gag lever post (9) continues to set up gag lever post connecting screw rod (10), and gag lever post (9) department registrates cock ring (11), and gag lever post connecting screw rod (10) set up fixation nut, and fixed cock ring (11) registrates the fixed or swing joint that forms the registrate on gag lever post (9).

4. The shock absorber provided with the universal joint damping rod as claimed in claim 1, wherein: the bottom of the fixed screw connector (5) is concavely provided with a clutch groove (12), and a connecting ring groove (3) of the top end part (202) of the damping rod (1) is inserted into the clutch groove (12).

5. A shock absorber provided with a damping rod for a universal joint according to claim 1, wherein: a rod hole (13) is formed in the center of the bottom of the positioning nut piece (6), the size of the rod hole (13) is smaller than the diameter of the positioning nut piece (6), and a positioning thread groove (14) is formed above the rod hole (13); the cover sleeve part (7) of the fixed screw connector (5) is screwed by utilizing the threads on the outer wall of the cover sleeve part and a positioning thread groove (14), the fixed screw connector (5) is fixedly connected to the upper end of the positioning nut (6), and a clutch groove (12) and the positioning thread groove (14) are spliced to form a clutch cavity (15) after the positioning nut (6) is connected with the fixed screw connector (5); the top end part (202) of the damping rod (1) is installed into the clutch cavity (15) to be fixedly connected or connected in a clutch way.

6. A shock absorber provided with a damping rod for a universal joint according to claim 1, wherein: the section of the plug section (2) is of an I-shaped structure and comprises a sliding pipe (16), an upper plug piece (17) and a lower plug piece (18), the upper plug piece (17) is longitudinally arranged above the sliding pipe (16), the lower plug piece (18) is arranged below the sliding pipe, a plug section sealing piece (19) is sleeved on the sliding pipe (16), and the bottom of the plug section (2) is provided with a screw connected to a plug rod connecting screw rod (10) so that the plug section (2) is arranged on the plug rod (9) in a penetrating mode.

7. A shock absorber provided with a damping rod for a universal joint according to claim 1, wherein: the positioning nut piece (6) is a diamond-shaped or circular or square nut or a nut provided with a straight cut (22).

8. A shock absorber provided with a damping rod for a universal joint according to claim 2, wherein: the center of the airtight tube (103) is provided with a piston airtight tube (105), the head end and the tail end of the piston airtight tube (105) are provided with air throttle tubes (106), the damping rod (1) is connected with the piston airtight tube (105) in a penetrating mode, and an airtight plug piece (107) is arranged at the position of the air throttle tube (106).

9. A shock absorber provided with a damping rod for a universal joint according to claim 2, wherein: an elastic tube (108) is sleeved outside the airtight tube (103).

10. A shock absorber provided with a damping rod for a universal joint according to claim 1, wherein: the top of the lower shock absorption connecting pipe (102) is provided with a connecting slot (109), the connecting slot is used as a matching airtight pipe (103) and is provided with a connecting insertion pipe (110), and the connecting insertion pipe (110) is connected in an inserting mode or in a threaded mode.