CN221075202U - Piston rod piece - Google Patents

Abstract

The utility model relates to a piston rod, in particular to a piston rod piece, comprising: the device comprises a fixed support frame, wherein elastic fixed blocks arranged in a circumferential array are fixedly arranged in the fixed support frame, and elastic pushing blocks arranged in a circumferential array are slidably arranged in the fixed support frame; the leather pad support is clamped and arranged on the fixed support frame, and a telescopic rubber ring is arranged on the leather pad support in a sliding manner; the arc-shaped pushing block is arranged in the fixed supporting frame in a sliding mode. According to the piston rod piece, the arc-shaped pushing block is pushed by the elastic fixing block in the fixing support frame, so that the arc-shaped pushing block pushes the elastic pushing block sliding in the fixing support frame by the pushing force of the elastic fixing block, the elastic pushing block abuts against the telescopic rubber ring sliding on the leather pad support, and the telescopic rubber is effectively replaced and sealed when other rubber is worn, leaked oil and gaps are generated due to the continuous pushing of the telescopic rubber ring, so that the integral tightness of the rubber is ensured.

Description

Piston rod piece

Technical Field

The utility model relates to a piston rod, in particular to a piston rod piece.

Background

The conventional hydraulic system is commonly provided with a piston rod piece, and the transmission efficiency of the hydraulic system can be ensured through the piston rod piece, for example, the following technology is adopted:

Reference is made to publication (bulletin) No.: CN218294034U, publication (bulletin) day: 2023-01-13, a hydraulic piston rod sealing member is disclosed, including the seal cover, the standing groove has been seted up to the seal cover upper surface, the interior bottom fixedly connected with elastomeric block of standing groove, the side surface of seal cover just is close to top edge fixedly connected with first seal lip, the side surface of seal cover just is close to bottom edge fixedly connected with second seal lip, and the side surface of seal cover just is located and sets up flutedly between first seal lip and the second seal lip, elastomeric block's shape is the hemisphere.

In the prior art including the above-mentioned patent, the seal cartridge can be effectively made to closely adhere to the piston body by using the elastic block, and the seal is advantageously prevented from aging during long-time use by the design of the first seal lip and the second seal lip. According to the technology, although the piston body is effectively combined with the sealing sleeve through the pushing of the elastic block, the integration of the piston body and the sealing sleeve is guaranteed, the sealing of the first sealing lip and the second sealing lip alone cannot guarantee the long-term sealing of a hydraulic system, and the first sealing lip and the second sealing lip can generate loss due to long-term use, so that gaps can be generated between the first sealing lip and the second sealing lip, and oil leakage phenomenon is caused.

Disclosure of utility model

The object of the present utility model is to provide a piston rod for solving the above-mentioned problems.

In order to achieve the above object, the present utility model provides the following technical solutions: a piston rod, comprising:

the device comprises a fixed support frame, wherein elastic fixed blocks arranged in a circumferential array are fixedly arranged in the fixed support frame, and elastic pushing blocks arranged in a circumferential array are slidably arranged in the fixed support frame;

The leather pad support is clamped on the fixed support frame, a telescopic rubber ring is arranged on the leather pad support in a sliding mode, and the telescopic rubber ring is in pushing fit with the elastic pushing block;

The arc push block is arranged in the fixed support frame in a sliding manner, the arc push block is in pushing fit with the elastic fixed block, and the arc push block is in tangential fit with the contact surface of the elastic push block.

Preferably, a first channel is formed in the fixed support frame, and the elastic fixing block is fixedly arranged in the first channel;

the fixed support frame is provided with a first chute which is arranged in a circumferential array, and the elastic pushing block is arranged in the first chute in a sliding manner.

Preferably, a second channel is formed in the arc-shaped pushing block, an arc-shaped groove is formed in the arc-shaped pushing block, and a notch of the arc-shaped groove is communicated with the second channel;

A fixed pad is movably arranged in the second channel, and a first connecting rod is fixedly arranged at the top of the fixed pad;

The bottom mounting of fixed pad is provided with the second connecting rod, the symmetry is fixed to be provided with the dead lever on the second connecting rod, the dead lever joint set up in the arc groove.

Preferably, an annular fixing groove is formed in the fixing support frame, and the annular fixing groove is communicated with the first channel;

the annular fixed groove is internally clamped with an annular fixed plate, and the annular fixed plate is fixedly arranged on the arc-shaped pushing block.

Preferably, the leather pad support is internally provided with cross-shaped sliding grooves which are arranged in a circumferential array, the leather pad support is provided with annular grooves, and the annular grooves are communicated with the cross-shaped sliding grooves;

The telescopic rubber ring is arranged in the annular groove and the cross-shaped chute in a sliding mode.

Preferably, the leather pad support is fixedly provided with at least two T-shaped bayonet locks, and the leather pad support is fixedly provided with a first rubber ring and a second rubber ring respectively;

The fixed support frame is provided with at least two L-shaped sliding grooves;

At least two third sliding grooves are formed in the fixed supporting frame and are communicated with the L-shaped sliding grooves;

The T-shaped bayonet lock joint is arranged in the third chute.

In the technical scheme, the piston rod provided by the utility model has the following beneficial effects: the arc ejector pad pushes away through the inside elastic fixed block of fixed support frame for the arc ejector pad pushes away the elasticity ejector pad of slip in fixed support frame through the thrust of elastic fixed block, and elasticity ejector pad butt is slided flexible rubber ring on the leather pad support, because flexible rubber ring is continuous to push away, makes flexible rubber effectively replace sealedly when wearing and tearing oil leak produces the gap appears in other rubber, guarantees the holistic leakproofness of rubber.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is a schematic view of the overall structure provided by an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of the whole structure according to the embodiment of the present utility model;

FIG. 3 is a schematic cross-sectional view of a portion A according to an embodiment of the present utility model;

FIG. 4 is a schematic cross-sectional view of a portion B according to an embodiment of the present utility model;

fig. 5 is a schematic structural view of a fixing support according to an embodiment of the present utility model;

Fig. 6 is a schematic structural diagram of a leather pad support according to an embodiment of the present utility model;

Fig. 7 is a schematic structural diagram of a driving rod according to an embodiment of the present utility model.

Reference numerals illustrate:

1. A first link; 2. a fixing pad; 3. fixing the supporting frame; 4. a leather cushion bracket; 5. a telescoping rubber ring; 6. an arc-shaped pushing block; 7. an elastic pushing block; 8. an elastic fixing block; 21. a second link; 22. a fixed rod; 31. an L-shaped chute; 32. a third chute; 34. an annular fixing groove; 35. a first chute; 36. a first channel; 41. a first rubber ring; 42. a T-shaped bayonet lock; 43. a cross-shaped chute; 44. an annular groove; 45. a second rubber ring; 61. an annular fixing plate; 62. an arc-shaped groove; 63. a second channel.

Detailed Description

In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.

As shown in fig. 1-7, a piston rod member includes: the fixed support frame 3, the fixed support frame 3 is internally fixedly provided with elastic fixed blocks 8 which are arranged in a circumferential array, and the fixed support frame 3 is internally slidably provided with elastic pushing blocks 7 which are arranged in a circumferential array;

The leather pad support 4 is arranged on the fixed support frame 3 in a clamping way, a telescopic rubber ring 5 is arranged on the leather pad support 4 in a sliding way, and the telescopic rubber ring 5 is in abutting and pushing fit with the elastic pushing block 7;

The arc push block 6, the arc push block 6 slides and sets up in fixed support frame 3, and arc push block 6 keeps pushing the cooperation with elasticity fixed block 8, and arc push block 6 and the tangent cooperation of the contact surface of elasticity push block 7.

Specifically, as can be seen from fig. 2 to fig. 4, the arc-shaped push block 6 is pushed by the elastic fixing block 8 inside the fixed support frame 3, so that the arc-shaped push block 6 slides from a low position to a high position (as can be seen from fig. 2, the top of the fixed support frame 3 is a high position, and the bottom of the fixed support frame 3 is a low position), and when the arc-shaped push block 6 slides to a high position, the arc-shaped surface of the arc-shaped push block 6 collides with eight elastic push blocks 7 sliding in the fixed support frame 3 tangentially.

Meanwhile, as can be seen from fig. 3, by pushing the arc-shaped pushing blocks 6, the eight elastic pushing blocks 7 slide from a low position to a high position in the fixed support frame 3 (as can be seen from fig. 3, the center of the fixed support frame 3 is in a low position, and the side wall of the fixed support frame 3 is in a high position), and when the elastic pushing blocks 7 slide from the high position, the elastic pushing blocks are abutted against the telescopic rubber ring 5 sliding on the leather pad support 4.

Meanwhile, as can be seen from fig. 2-3, the telescopic rubber ring 5 is enabled to simultaneously support and push eight elastic pushing blocks 7 through self-scalability, the telescopic rubber ring 5 is stretched and deformed, the telescopic rubber ring 5 can continuously attach to a hydraulic system in a sealing state through the transverse pushing of the elastic pushing blocks 7, and the telescopic rubber ring 5 is enabled to effectively seal secondarily when other rubbers are worn, leaked oil and gaps are generated.

In the above technical scheme, the arc push block 6 pushes away through the inside elastic fixed block 8 of fixed support frame 3 for the arc push block 6 pushes away the elastic push block 7 of slip in fixed support frame 3 through the thrust of elastic fixed block 8, and elastic push block 7 butt is on the gliding flexible rubber ring 5 on leather pad support 4, because flexible rubber ring 5 is continuous to push away, makes flexible rubber ring 5 effectively replace the seal when other rubber appears wearing and tearing oil leak and produces the gap, guarantees the holistic leakproofness of rubber.

As a further provided embodiment of the present invention, the fixed support frame 3 is provided with a first channel 36, and the elastic fixing block 8 is fixedly arranged in the first channel 36;

The fixed support frame 3 is provided with a first chute 35 which is arranged in a circumferential array, and the elastic pushing block 7 is arranged in the first chute 35 in a sliding way.

Further, a second channel 63 is formed in the arc-shaped pushing block 6, an arc-shaped groove 62 is formed in the arc-shaped pushing block 6, and the notch of the arc-shaped groove 62 is communicated with the second channel 63;

A fixed pad 2 is movably arranged in the second channel 63, and a first connecting rod 1 is fixedly arranged at the top of the fixed pad 2;

The bottom end of the fixed pad 2 is fixedly provided with a second connecting rod 21, the second connecting rod 21 is symmetrically and fixedly provided with a fixed rod 22, and the fixed rod 22 is clamped and arranged in the arc-shaped groove 62.

Further, an annular fixing groove 34 is formed in the fixing support frame 3, and the annular fixing groove 34 is communicated with the first groove 36;

The annular fixing groove 34 is internally provided with an annular fixing plate 61 in a clamping way, and the annular fixing plate 61 is fixedly arranged on the arc-shaped pushing block 6.

Specifically, as can be seen from fig. 2 to 7, the fixing pad 2 slides in the second channel 63 from a low position to a high position (as can be seen from fig. 2, the top end of the second channel 63 is a low position, and the bottom end of the second channel 63 is a high position), when the fixing pad 2 moves to a high position, two fixing rods 22 on the fixing pad 2 enter the arc-shaped groove 62 through the notch of the arc-shaped groove 62, the fixing pad 2 is driven to rotate clockwise by 90 degrees through the first connecting rod 1, so that the fixing pad 2 and the arc-shaped push block 6 are clamped, and when the fixing pad 2 is disassembled, the arc-shaped push block 6 and the fixing pad 2 can be released from the clamping state only by rotating the fixing pad 2 anticlockwise by 90 degrees, and when the arc-shaped push block 6 is damaged, the fixing pad 2 can be quickly taken down for replacement in the clamping mode.

Meanwhile, as can be seen from fig. 2 to 3, when the arc-shaped push block 6 slides to a high position, the annular fixing plate 61 slides along with the arc-shaped push block 6, the annular fixing plate 61 is clamped with the annular fixing groove 34 through sliding, and the annular fixing plate 61 is clamped with the annular fixing groove 34 under the condition of not being pushed by external force by continuous pushing of the elastic push block 7.

As a further provided embodiment of the present invention, a cross-shaped chute 43 arranged in a circumferential array is provided in the leather pad support 4, an annular groove 44 is provided on the leather pad support 4, and the annular groove 44 is communicated with the cross-shaped chute 43;

The telescopic rubber ring 5 is slidably arranged in the annular groove 44 and the cross-shaped chute 43.

Further, at least two T-shaped bayonet locks 42 are fixedly arranged on the leather pad support 4, and a first rubber ring 41 and a second rubber ring 45 are fixedly arranged on the leather pad support 4 respectively;

At least two L-shaped sliding grooves 31 are formed in the fixed supporting frame 3;

At least two third sliding grooves 32 are formed in the fixed support frame 3, and the third sliding grooves 32 are communicated with the L-shaped sliding grooves 31;

The T-shaped bayonet 42 is disposed in the third chute 32 in a snap fit manner.

Specifically, as can be seen from fig. 2 to fig. 6, the two T-shaped bayonet locks 42 slide from a lower position to a higher position longitudinally on the two L-shaped sliding grooves 31 on the fixed support frame 3 (as can be seen from fig. 5, the top of the L-shaped sliding groove 31 is a lower position, and the bottom of the L-shaped sliding groove 31 is a higher position), and when the two T-shaped bayonet locks 42 slide to a higher position, the two T-shaped bayonet locks 42 are engaged through the two third sliding grooves 32 and slide transversely through the L-shaped sliding groove 31.

Meanwhile, as can be seen from fig. 2 to 5, when the two T-shaped bayonet locks 42 slide to the designated positions, the cushion support 4 is clamped with the fixed support 3, and the first rubber ring 41 and the second rubber ring 45 can seal the hydraulic system for the first time, so that the hydraulic system is effectively sealed by the double-layer rubber ring.

Meanwhile, as can be seen from fig. 2 to 5, when the two T-shaped bayonet locks 42 slide to the designated positions, the cross-shaped sliding groove 43 on the leather pad support 4 is communicated with the first sliding groove 35 on the fixed support frame 3, so that the elastic pushing block 7 sliding in the first sliding groove 35 can push the annular groove 44 against the telescopic rubber ring 5 sliding in the cross-shaped sliding groove 43, and the telescopic rubber ring 5 seals the hydraulic system for the second time.

Meanwhile, as can be seen from fig. 2 to 5, the leather pad support 4 and the fixed support frame 3 can be quickly replaced in a clamping manner when the first rubber ring 41, the second rubber ring 45 and the telescopic rubber ring 5 can not be used any more, and the leather pad support 4 slides along the vertical direction of the L-shaped chute 31 after rotating anticlockwise by 50 degrees, so that the leather pad support 4 is separated from the fixed support frame 3 for quick replacement.

Working principle: as can be seen from fig. 1 to 7, the fixed pad 2 slides in the second channel 63 from a low position to a high position, when the fixed pad 2 moves to the high position, the two fixed rods 22 on the fixed pad 2 enter the inside of the arc-shaped groove 62 through the notch of the arc-shaped groove 62 to rotate clockwise by 90 degrees to be clamped with the arc-shaped pushing block 6, the clamped leather pad support 4 slides in the two L-shaped sliding grooves 31 on the fixed support frame 3 from a low position to a high position longitudinally through the two T-shaped clamping pins 42, when the two T-shaped clamping pins 42 slide to the high position, the two T-shaped clamping pins 42 slide in the clockwise by 50 degrees to be clamped through the two third sliding grooves 32 and slide in the transverse direction through the L-shaped sliding grooves 31, when the two T-shaped clamping pins 42 slide to the designated position, the leather pad support 4 and the fixed support frame 3 are clamped, the first rubber ring 41 and the second rubber ring 45 can seal the hydraulic system for the first time, the double-layer rubber ring is used for effective sealing, when the two T-shaped bayonet locks 42 slide to a designated position, the two T-shaped bayonet locks are communicated with the first chute 35 through the cross-shaped chute 43, the communicated channel enables the arc-shaped push block 6 to be pushed by the elastic fixing block 8 in the fixed support frame 3, the arc-shaped push block 6 slides from a low position to a high position, when the arc-shaped push block 6 slides to the high position, the arc-shaped push block 6 is contacted with the eight elastic push blocks 7 sliding in the fixed support frame 3, the elastic push blocks 7 slide from the low position to the high position in the fixed support frame 3 through the pushing of the arc-shaped push blocks 6, when the elastic push blocks 7 slide to the high position, the arc-shaped push blocks are abutted on the telescopic rubber ring 5 sliding on the cushion support frame 4, and the eight elastic push blocks 7 simultaneously push by the telescopic property of the telescopic rubber ring 5, stretching deformation is carried out on the telescopic rubber ring 5, the telescopic rubber ring 5 can be kept in a fitting state continuously by transversely pushing the elastic pushing block 7, and when other rubbers are worn and leaked to generate gaps, the telescopic rubber ring 5 is used for effective secondary sealing.

While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.

Claims (6)

1. A piston rod member, comprising:

The device comprises a fixed support frame (3), wherein elastic fixed blocks (8) which are arranged in a circumferential array are fixedly arranged in the fixed support frame (3), and elastic pushing blocks (7) which are arranged in a circumferential array are slidably arranged in the fixed support frame (3);

The leather pad support (4) is clamped and arranged on the fixed support frame (3), a telescopic rubber ring (5) is arranged on the leather pad support (4) in a sliding mode, and the telescopic rubber ring (5) is in pushing fit with the elastic pushing block (7);

The arc push block (6), arc push block (6) slide set up in fixed support frame (3), arc push block (6) with elasticity fixed block (8) keep supporting the push fit, arc push block (6) with the tangent cooperation of contact surface of elasticity push block (7).

2. A piston rod according to claim 1, wherein a first channel (36) is formed in the fixed support frame (3), and the elastic fixing block (8) is fixedly arranged in the first channel (36);

The fixed support frame (3) is provided with first sliding grooves (35) which are arranged in a circumferential array, and the elastic pushing blocks (7) are slidably arranged in the first sliding grooves (35).

3. A piston rod piece according to claim 1, characterized in that a second channel (63) is formed on the arc-shaped pushing block (6), an arc-shaped groove (62) is formed in the arc-shaped pushing block (6), and a notch of the arc-shaped groove (62) is communicated with the second channel (63);

A fixed pad (2) is movably arranged in the second channel (63), and a first connecting rod (1) is fixedly arranged at the top of the fixed pad (2);

The bottom end fixing of the fixed pad (2) is provided with a second connecting rod (21), the second connecting rod (21) is symmetrically and fixedly provided with a fixed rod (22), and the fixed rod (22) is clamped and arranged in the arc-shaped groove (62).

4. A piston rod according to claim 2, characterized in that an annular fixing groove (34) is formed in the fixing support frame (3), and the annular fixing groove (34) is communicated with the first channel (36);

The annular fixing groove (34) is internally clamped with an annular fixing plate (61), and the annular fixing plate (61) is fixedly arranged on the arc-shaped pushing block (6).

5. The piston rod piece according to claim 1, characterized in that a cross-shaped chute (43) arranged in a circumferential array is arranged in the leather pad support (4), an annular groove (44) is formed in the leather pad support (4), and the annular groove (44) is communicated with the cross-shaped chute (43);

The telescopic rubber ring (5) is arranged in the annular groove (44) and the cross-shaped chute (43) in a sliding mode.

6. A piston rod according to claim 5, characterized in that at least two T-shaped bayonet locks (42) are fixedly arranged on the leather pad support (4), and a first rubber ring (41) and a second rubber ring (45) are fixedly arranged on the leather pad support (4) respectively;

The device also comprises at least two L-shaped sliding grooves (31) arranged on the fixed supporting frame (3);

At least two third sliding grooves (32) are formed in the fixed supporting frame (3), and the third sliding grooves (32) are communicated with the L-shaped sliding grooves (31);

The T-shaped bayonet lock (42) is clamped and arranged in the third sliding groove (32).